Filtration & Technology in Alumina Refineries
|
|
- Giles Watts
- 6 years ago
- Views:
Transcription
1 Filtration & Technology in Alumina Refineries 09 / 2012
2
3 Page 3 of 16 Centre of Excellence for Solid/Liquid Separation is the HighTech company in the field of separation processes and innovations. Our unique knowhow and comprehensive services are asked for by clients world-wide and give us an outstanding position. In dialogue with the Alumina industry we perform solutions for filtration. Dialogue needs mutual acceptance. Acceptance needs operational experience. Experience creates valuable expertise. Expertise forms trust. Thus, we have achieved leadership in filtration technology for Alumina refineries. Our engineers are in a permanent dialogue with the experts from the worldwide Alumina family and perform high efficient solutions for filtration tasks. Our rotary vacuum filters and backflush filters for seed filtration, product filtration, oxalate filtration, pregnant liquor purification and especially the Hi-Bar Filtration and Hi-Bar Steam Pressure Filtration technologies which allow filtration of bauxite ore and which provide dry bauxite residue are pace-making technologies which define the state of the art. With our revamping concept for the modernization of running filter plants we have achieved market leadership. By upgrading and modernization of used filters we make it possible to improve the filtration process significantly or even to re-vitalise shut down filters for new applications. provides unique engineering services and after sales services around any filtration step which are used by our clients to design most modern separation processes and to open access to remarkable cost savings. In the global Alumina family our name stands for: tailor-made solutions, long-termed partnership, integral project engineering, unique revamping of running filters, excellent know-how for the refinery process, pace-making in modern filtration technologies. Rotary Filters and Backflush Filters Our filter technologies for filtration tasks in Alumina refineries such as seed, product, oxalate, red mud, bauxite ore and pregnant liquor filtration comprise vacuum disc filters vacuum drum filters vacuum pan filters Hi-Bar and Hi-Bar Steam Pressure disc and drum filters backflush filters. The innovative design of our high performance filters is the result of pioneering research and reflects the experience in filter operation and the know-how from numerous filter optimisation projects. It is also the result from an uniquely academic calculation of the hydrodynamic of each filter detail due to our close co-
4 Page 4 of 16 operation with the University of Karlsruhe. engineers have upgraded filter systems of nearly all major original equipment manufacturers (OEM) in Alumina refineries and in various other industries all over the world leading to significantly improved process results. Faced with the weak points of these technologies we designed the new generation of filters which define a new state of the art. Our filters represent the filtration technology for the Alumina industry. Their excellent hydraulic characteristics provide for the extremely high performance capacity and the control philosophy leads to the unique operational reliability and flexibility. In short, the control philosophy means adapted filter performance by filter speed control instead of continuous slurry overflow, fully automatic filter operation instead of visual control by the operators, controlled and simple maintenance and easy operation. Disc Filter Boozer The disc filter Boozer has set a new standard for Al-hydrate filtration in Alumina refineries. When the first filter Boozer started operation in 1995 this was the beginning of a string of success. In the following few years the Boozer became the leading technology in Al-hydrate filtration and gained the major market share. The excellent hydraulic characteristics are the reason for the high filter capacity, the safe operation behaviour and improved economy. The control philosophy enables automatic operation control that allows the adaptation of the filter performance to changing slurry and process conditions. So, the Boozer runs without continuous slurry overflow. Each Boozer disc filter is designed according to the specific demands of the individual filtration task. Compared to conventional disc filters the disc filter Boozer provides up to 100 % more throughput enables a fully automatic filter operation, start and stop runs without slurry overflow needs no agitator ensures 99 % availability increases the plant capacity due to the reduced amount of re-circulated spent liquor enables a filter cake wash reduces energy consumption and operation costs by 20 % per t of solids reduces investment costs due to the low space demand and less peripheral equipment simplifies maintenance work can be equipped with FrameTrak TM the unique cloth fixing system Boozer disc filters are manufactured with different disc diameters as Boozer L-type, M-type (MI with filtrate pipes inside of the barrel and ME with filtrate pipes outside of the barrel), S-type and XS-type.
5 Page 5 of 16 Figure 1: Seed filtration with the Boozer M-type and L-type: Perfect cake discharge from a Boozer M-type (left), Boozer L-type (middle) and cake discharge from a Boozer L-type (right) Figure 2: Boozer L4-type (left) and installation of Boozer disc filters in an Alumina refinery (right) Filter Type [-] XS S ME MI L Disc Diameter [m] 2.2 3, Filtration Area [m²] (72)* (180)* (264)* Number of Discs per Control Head [-] No. of Control Heads per Filter [-] No. of Segments per Disc [-] Filtrate Pipe Design [-] internal internal external internal internal Trough Design [-] common / twin** common / twin** common / twin** common joint single Table 1: Boozer disc filter sizes (* max. filter area / ** 2 separate troughs in case of 2 control valves)
6 Page 6 of 16 Drum Filter The vacuum drum filter is the washing machine in our rotary filter family. It convinces with innovative design features, high performance capacity and of course excellent cake washing and cake steaming. Compared to conventional drum filters vacuum drum filters improve cake wash by 30 % without increasing the moisture content discharge the cake to 100 % by compressed air blowback or roller discharge even at high filter speed have a pre-separation control head which is designed for high hydraulic capacity (the pre-separation of filtrate and air in the control head provides for low pressure drops and prevents filtrate entrainment from cake formation zone to cake wash and/or dewatering zone) provide up to 75 % more throughput reduce energy consumption and operation costs by % per ton of product offer a special design for red mud filtration with extra piping to break the active vacuum at cake discharge (roller discharge) without the need of an additional control valve run in automatic operation ensure easy maintenance and long maintenance intervals can be equipped with FrameTrak TM the unique cloth fixing system Our vacuum drum filters are individually adapted to the requirements of the special filtration task and are available with different methods of cake discharge like roller discharge, scraper /compressed air blowback but also leaving cloth or knife discharge for precoat filtration. The filter sizes range from 0.5 m² up to 125 m² filter area. As special feature our vacuum drum filters can be equipped with a steam cabin that allows a still more intensive washing and dewatering of the cake by steaming. This reduces cake moisture by some 2 %-points for Al-hydrate. Figure 3: Two oxalate drum filters in the workshop (86 m 2 each)
7 Page 7 of 16 Figure 4: red mud drum filter with roller discharge Filter Type [-] XS S M L XL XXL Drum Diameter [m] Filtration Area [m²] No. of of Cells (closed drum) [-] Table 2: drum filter sizes Pan Filter The pan filter is the horizontal type of our rotary filter family and convinces with the typical characteristics of the rotary filters like: outstanding high performance capacity allowing smaller filter units sharp separation of filtrates the precondition of our excellent washing results high operational reliability and flexibility self-controlling operation by intelligent interlock system innovative design features resulting in optimal process results and low operational costs a special designed steam cabin giving the chance for very low moisture content
8 Page 8 of 16 Compared to conventional pan filters the pan filter enables a controlled filter operation with constant cake thickness even along the pan radius due to our innovative forced feeding system which provides for 4 equal slurry sub-flows to 4 equal filter areas on the pan leading to an absolutely flat and constant cake surface improves cake washing by 30 % without increasing the moisture content reduces wash liquor consumption by 25 % and allows a three-step counter-current wash discharges the filter cake to 100 % even at high filter speed by an automatically controlled discharge scroll with variable speed drive (self adjusting system) provides 50 % more throughput runs independently from changes in the feed flow, feed solids concentration or particle size distribution reduces energy consumption and operation costs about % per ton of product enables a high efficient re-slurring of the remaining cake layer by very effective heel-breakage can manage overflow of up to 125 % of the slurry flow can be equipped with FrameTrak TM the unique cloth fixing system Measurement of the cake thickness in combination with the variable speed drives of the pan and discharge scroll enable the pan filter to run with thick filter cakes of constant cake thickness. This results in an improved filter cake wash and constantly low Na 2 O content. As a special feature our pan filter as well as the drum filter can be equipped with an innovative steam cabin that provides for a still more intensive washing and dewatering of the cake by steaming what leads to some 1 to 2 %-points lower cake moisture content. Each pan filter is individually adapted to the requirements of the special filtration task. Figure 5: pan filter equipped with FrameTrak in operation for Al-hydrate product filtration
9 Page 9 of 16 Cake washing heel removal after filter stop slurry distributor steam cabin (optional) heel re-slurring cake discharge Figure 6: pan filter (general arrangement) filter type [-] XXS XS S M L XL pan diameter [m] filtration area [m²] number of cells [-] Table 3: pan filter sizes
10 Page 10 of 16 FrameTrak New Cloth Fixing Methods for Drum, Disc & Pan Filters FrameTrak is a new method of attaching filter media to disc, drum and pan filters designed and developed by Madison Filter and. It replaces the old-fashioned, burdensome caulking method or the more modern bolt down clamping methods on drum and pan filters as well as the bag method for disc filters. Its main function is to eliminate the numerous Operational Health & Safety issues associated with the existing methods of re-clothing filters. Filter cloth can be secured to a filter without the use of power tools. FrameTrak consists of three parts: 1. A special designed steel profile. 2. An extruded elastomer polymer profile with cloth inserts. 3. A second extruded elastomer polymer profile, which acts as a locking strip. The major advantage for drum filters is the cloth exchange time can be remarkably shortened and only those filter cells which need a cloth change can be re-clothed. The same reasoning can be applied to pan filters. The main advantage for disc filters is the cloth can be exchanged without removing segments. Main benefits of FrameTrak are improves sealing and filtrate clarity easy and quick cloth mounting without power tools or excessive force avoids cloth damaging during rough installation procedures reduced OH&S risks with no force required to fit elastomer locking strip quick removal of used media individual cloth panels of drum & pan filters are replaced without disturbing neighbouring panels eliminates caulking better and stronger cloth fixing on drum and pan filters than caulking eliminates wire-bound rotary vacuum drums FrameTrak can easily mounted on existing filters by revamping services Elastomer locking strip Elastomer profile Steel profile a b c d b Figure 7: FrameTrak cloth fixing system for drum filters (a), drum filter with FrameTrak (b), inserting of locking strip on a pan filter with special tool (c) pan filter with FrameTrak in operation (d)
11 Page 11 of 16 Hi-Bar Steam Pressure Filtration Breakthrough Technology for Dry Bauxite Residue Future methods of bauxite residue treatment must be capable not only to improve the red mud handling but to provide material with very new product characteristics and, thus, to allow at least a simple and risk-free transport storage and reclamation of disposal sites or even an industrial re-usage of dry bauxite residue. The target is clearly defined: achieving a dry residue material in an economic way making re-usage feasible instead of disposal minimizing the loss of valuable soda. Our innovative Hi-Bar Steam Pressure Filtration is a patented process successfully applied in various industries that shows the way for future bauxite residue treatment. This continuous Hi-Bar Filtration can be realised as pressure filtration process with compressed air or as steam pressure filtration. The plant design is based on rotary drum or disc filters which are installed inside a pressure vessel that is filled with compressed air. Over-pressure of up to 6 bar is applied for filtration and cake dewatering. For the patented Hi-Bar Steam Pressure Filtration superheated, pure steam is applied for filter cake treatment. For this process a specially designed steam cabin covers a part of the filter area and forms a separate room with superheated steam. Thus, filtration, washing and dewatering of bauxite residue is performed in a new quality and leads to a really dry bauxite residue with an extremely low moisture content of % an excellently washed and clean material with very low soda content a bulk-like, sandy and easy to handle material which can be safely transported over long distances and processed like a bulk material. This breakthrough technology in red mud filtration leads to product characteristics never achieved before in one process step. Residue with this consistency can be easily stored, transported and processed and offers new chances for re-usage. Dry Bauxite Residue a bulk-like, sandy product Figure 8: Hi-Bar steam pressure disc filter (70 m², 5 discs each equipped with a steam cabin) in the workshop (left), dry bauxite residue discharged from a Hi-Bar steam pressure filter (right)
12 Page 12 of 16 Filtration of Bauxite Ore after Pipeline Transport a World Premiere The continuous pressure filtration is the chosen technology for the dewatering of the worldwide first pipeline transported bauxite at an Alumina refinery of Alunorte (Alumina do Norte do Brasil S/A) in Brazil. When Vale was designing the mining and beneficiation of the Paragominas mine it was to decide by which means the bauxite should be supplied to the Alumina refinery. Beside ship or railroad transport the most preferred option was pipeline transport of the bauxite. Pipeline transport of bulk materials such as kaolin or iron ore is not only a proved but also a more economical and environmental method than ship or railroad transport. Cost for pipelining is lower than ship or railroad transport. At the refinery, however, the pumped slurry has to be dewatered and it is a decisive condition for realizing pipeline pumping of bauxite to have a feasible filtration technology available which is capable to dewater the arriving slurry to a low residual moisture content in an economical way. This intensive dewatering step has to guarantee a very low moisture content below a critical moisture of 14 % due to the following reasons: the amount of water entering the refinery process has to be below a critical point above a certain moisture content the bauxite filter cake becomes sticky and has poor transportation and processing characteristics (very similar to bauxite residue) different sorts of bauxite have to be blended which requires a dry and mixable filter cake the portion of fines can vary due to changing quarries Analogous to the bauxite residue (red mud) the fine milled bauxite is difficult to dewater. After extensive analysis by Alunorte, and other expertised groups the continuous pressure filtration was preferred against filter presses since these filters achieve better moisture content and require less invest and operation cost. designed a process flow sheet which ensured that the continuous pressure filters achieve the required moisture content of below 14 % which can be improved by application of the Steam Pressure Filtration to even mc = %. The first five pressure disc filters of 168 m² each were commissioned in May 2007 already prepared to be equipped for Stream Pressure Filtration. The engineering and supply of these filters was managed by a consortium of Andritz AG, Graz (Austria) and based on a comprehensive feasibility study done by. Meanwhile 13 pressure disc filters of 168 m² each are in operation. Backflush Filter The Backflush Filter is of advanced hydraulic design which is the basis for pregnant liquor purification with improved performance and improved operation. The Backflush Filter comprises mainly a vessel, filter elements arranged in a star-shape, a top reservoir, pneumatic valves with fast opening/closing characteristics and a new developed auto-control system with excellent mechanicalelectrical integration. Vertical filter elements inside the vessel are connected to external manifold via syphons each equipped with an isolating valve and sampling valve, by which filtrate quality can be monitored. In case of turbidity the relevant isolating valve can be closed, so that filtrate quality can be guaranteed. The filter runs in completely closed operation to prevent exposure to air what minimises crust formation over the bags and provides for long lifetime of filter bags. Fully automatic operation makes handling easy. The main important improvements in design and operation of the Backflush Filter are comprehensive PC-PLC control, excellent mechanical-electrical integration and user-friendly manmachine interface resulting in a stable optimized process sequence with the consequence of superior pregnant liquor throughput strong filter elements of double-layered stainless metal with firm mechanical properties special reliable pneumatic valves with fine dynamic characteristics (e.g. half-ball valve for sludge discharge with fast opening/closing characteristics)
13 Page 13 of 16 improved cake discharge by uniform backwashing in all filter elements individual cone angle of depending on product instead of fixed cone angle. The filter elements are of strong design and made of double-layered stainless metal providing firm mechanical properties. Reduction of the open flow area during operation is minimized which is a precondition for high capacity. The flow patterns inside the filter element prevent that solids having passed the filter cloth at the begin of the filtration cycle during turbid filtrate recycling can deposit at the bottom of the filter element. Deposits of solids at the bottom of the filter elements often lead to increasing weight of the filter elements and cloth destruction. Furthermore, deposits of solids form protuberances at the bottom of the filter bag reducing the open sedimentation channel for the discharged filter cake between the filter elements. Figure 9: View of Backflush Filters with backwash tanks (left), view into the filter with star-shape arranged filter elements (right) The main performance data of the Backflush Filter can be listed as: filter sizes: up to 500 m² filter area filter area per volume: up to 8 m²/m³ cycle time: ca. 1 h, online time minutes throughput capacity: m 3 /m 2 h solids in filtrate: 15 mg/l concentration of discharged sludge: 150 g/l lifetime of filter cloth: 90 days Numerous reference applications of the Backflush Filter can be found in pregnant liquor purification in the Bayer process, Aluminate liquor in the Sinter process, spent liquor recovery (seed disc filter filtrate), fine hydrate reclaiming and in filter aid production.
14 Page 14 of 16 Filter Revamping New Filtration Capacities by Retrofitting Filter revamping is an economic and fast way to eliminate bottlenecks in production plants and to make running filtration plants suitable for new production targets provided that the revamping is carried out with the necessary know how and experience in filtration processes and filter operation. With our well-proved filter optimization programme we upgrade running filter plants in Alumina refineries with great success. We modernised seed, product, oxalate and red mud filters of nearly all suppliers with considerable improvements. Our optimisation program is split in a diagnostic step, engineering step realization step. This method allows a maximum of cost control and a minimum risk. The benefits are: capacity increases of 50 % up to 150 % improved profitability and product quality by better cake washing, cake dewatering and cake discharge, longer filter cloth lifetime, reduced energy consumption etc. short-termed and fast realisation usage of the well known and operator-accepted equipment minimal costs for peripheral & supplementary equipment cost coverage by the maintenance budget pay-back period of less than 1 year Our reference list comprises a comprehensive variety of filter types disc filters, drum filters, pan filters, belt filters, filter presses, Kelly filters, Niagara filters etc. Meanwhile is the No. 1 expert in filter revamping world-wide. Bauxite residue drum filter: cake discharge before and after revamping by Figure 10: Red mud drum filter: roller discharge before and after modification
15 Page 15 of 16 Figure 11: Perfect cake discharge from an Al-Hydrate disc filter revamped by
16 GmbH Tullastr Karlsruhe Germany phone: fax: Australia Pty Springfield, QLD 4300 Australia phone : mfiddy@bokela.com.au do Brasil Ltda R. Santiago Ballesteros 610 Sala 6, Cinco Contagem MG Brazil phone: fax: mhatzenbuehler@bokela.com.br
Filtration & Technology in Coal Preparation Plants
Filtration & Technology in Coal Preparation Plants 9/ 2009 e Page 3 of 16 - Centre of Excellence for Solid/Liquid Separation in coal beneficiation is the HighTech company in the field of separation processes
BOKELA GmbH. Ingenieurgesellschaft für Mechanische Verfahrenstechnik. Centre of Excellence for Solid/Liquid Separation.
2 / 2018 en BOKELA GmbH Ingenieurgesellschaft für Mechanische Verfahrenstechnik Fest Flüssig Centre of Excellence for Solid/Liquid Separation Clever Centre of Excellence for Solid/Liquid Separation In
Starch Dewatering by Hi-Bar Filtration
Starch Dewatering by Hi-Bar Dewatering of Starch Suspensions by Continuous Pressure 3 t2 = OO t2 = 6 s t2 = 3 s t2 = s Pressure difference p 2 1 p ce,5 1 2 / 211 e S r Saturation S BOKELA Hi-Bar Oyster
Design and Operation of Pan Filters at the Physical Cake Moisture Limit
Design and Operation of Pan Filters at the Physical Cake Moisture Limit Abstract Jürgen Hahn Sales Director, BOKELA GmbH, Karlsruhe, Germany Corresponding author: jhahn@bokela.com Pan filters are operated
BOKELA HiBar Filtration
BOKELA HiBar Filtration Continuous Pressure & Steam Pressure Filtration with Large Filter Units 2 / 2018 en BOKELA HiBar Filtration Continuous Filtration with Rotary Drum or Disc Filters HiBar Pressure
Reinhard Bott; Thomas Langeloh; Jurgen Hahn BOKELA GmbH, Karlsruhe, Germany. 1. Introduction
FILTRATION MAP OF BAUXITE RESIDUES FILTERABILITY OF RED MUD FROM SEVERAL BAUXITES AND POSSIBLE USE OF CONTINUOUS PRESSURE FILTRATION LIKE HI-BAR FILTRATION Reinhard Bott; Thomas Langeloh; Jurgen Hahn BOKELA
The DYNO Filter. 12 / 2012 e
The DYNO Filter 12 / 2012 e Dynamic Crossflow Filtration Separation of solid particles > 0.01 µm (micro and ultra filtration) Dead end filtration: absolute clear filtrate High flow rates even with highly
IMPROVED FILTRATION AND WASHING OF AL-HYDRATE PRODUCT: COST SAVINGS BY MODERN FILTER DESIGN
IMPROVED FILTRATION AND WASHING OF AL-HYDRATE PRODUCT: COST SAVINGS BY MODERN FILTER DESIGN Hahn J *, Bott R and Langeloh T BOKELA GmbH; Gottesauer Str. 28, 711 Karlsruhe, Germany Abstract Filtration and
FILTRATION OF BAUXITE AFTER PIPELINE TRANSPORT: BIG CHALLENGES - PROPER SOLUTIONS
FILTRATION OF BAUXITE AFTER PIPELINE TRANSPORT: BIG CHALLENGES - PROPER SOLUTIONS Bott R *, Langeloh T and Hahn J BOKELA GmbH, Gottesauer Strasse 28, 76131 Karlsruhe, Germany 1. Introduction Transport
BOKELA DYNO Filter. Dynamic Crossflow Filtration. 02/ 2018 en
BOKELA DYNO Filter Dynamic Crossflow Filtration 02/ 2018 en Dynamic Crossflow Filtration with the BOKELA DYNO Filter Dynamic Membranfiltration - Dynamic Sieve Filtration - Dynamic Precoat Filtration Separation
BOKELA. Gesellschaft für Mechanische Verfahrenstechnik mbh. Centre of Excellence for Solid/Liquid Separation. 1 / 2010 e
BOKELA Gesellschaft für Mechanische Verfahrenstechnik mbh Centre of Excellence for Solid/Liquid Separation 1 / 2010 e + Different Product Varieties Demand Different Solutions the Challenge of Suppliers
BHS-FILTRATION INC. BHS VACUUM BELT FILTER, CANDLE & PRESSURE PLATE FILTER TECHNOLOGIES FOR BIO-ENERGY APPLICATIONS
BHS-FILTRATION INC. BHS VACUUM BELT FILTER, CANDLE & PRESSURE PLATE FILTER TECHNOLOGIES FOR BIO-ENERGY APPLICATIONS 1. Crop Feedstocks for Bio-Ethanol 2. Cellulose Feedstocks for Bio-Ethanol 3. Wood Feedstocks
THEORY AND PRACTICE OF FILTRATION IN THE ALUMINA INDUSTRY
THEORY AND PRACTICE OF FILTRATION IN THE ALUMINA INDUTRY Abstract Jürgen Hahn; Reinhard Bott; Thomas Langeloh BOKELA GmbH, 76131 Karlsruhe, Germany Continuous rotary filters like disc, drum or pan filters
COMBINATION FILTRATION OF PRESSURE, VACUUM AND CLARIFICATION TECHNOLOGIES FOR OPTIMUM PROCESS SOLUTIONS (INCLUDING DATA IN APPENDIX A)
COMBINATION FILTRATION OF PRESSURE, VACUUM AND CLARIFICATION TECHNOLOGIES FOR OPTIMUM PROCESS SOLUTIONS (INCLUDING DATA IN APPENDIX A) Barry A. Perlmutter, President & Managing Director BHS-Filtration
SOLID-LIQUID SEPARATION TECHNOLOGY FOR REMOVING CONTAMINANT FINES FROM WATER SCRUBBING, CLARIFIER EFFLUENTS AND GREY WATER PAPER NUMBER
SOLID-LIQUID SEPARATION TECHNOLOGY FOR REMOVING CONTAMINANT FINES FROM WATER SCRUBBING, CLARIFIER EFFLUENTS AND GREY WATER PAPER NUMBER 480801 Barry A. Perlmutter, President & Managing Director BHS-Sonthofen
AGGREGATES DIVISION THE EXCELLENCE IN FILTRATION, BY NATURE
AGGREGATES THE EXCELLENCE IN FILTRATION, BY NATURE WATER TREATMENT & WASHOUT SOLUTIONS THE EXCELLENCE IN FILTRATION, BY NATURE MATEC is a worldwide leader in the design and manufacturing of filtration
PUTTING THE PRESSURE ON ALUMINA FILTRATION WITH ADVANCED VPF TECHNOLOGY
PUTTING THE PRESSURE ON ALUMINA FILTRATION WITH ADVANCED VPF TECHNOLOGY Author: Timo Juahiainen Illustration of bank of VPF s in operation. THE FOCUS ON FILTRATION Alumina filters undergo some of the harshest
Abstract. 1 Introduction. Golder Associates Ltd, Canada
https://papers.acg.uwa.edu.au/p/1752_05_gu/ Challenges associated with the design of a dewatering plant that will undergo a large increase in tailings throughput during the initial years of the project
Caustic cleaning quality: Condition crucial to increased system availability in a Bayer plant
Caustic cleaning quality: Condition crucial to increased system availability in a Bayer plant Américo José Preto Borges 1, Clauderino da Silva Batista 2, João Nazareno Nonato Quaresma 3 1. Senior process
Economical dewatering of tailings for mine backfill with high performance disc filters
Mine Fill 2014 Y Potvin and AG Grice (eds) 2014 Australian Centre for Geomechanics, Perth, ISBN 978-0-9870937-8-3 https://papers.acg.uwa.edu.au/p/1404_01_hahn/ Economical dewatering of tailings for mine
It pays to talk to a specialist
Horizontal Belt Filters It pays to talk to a specialist TENOVA. innovative solutions for metals and mining Tenova is a worldwide supplier of advanced technologies, products and engineering services for
FOR MINERAL AND MINING SLURRIES WITH HIGH SOLIDS CONCENTRATION
CDF VACUUM DISC FILTERS FOR MINERAL AND MINING SLURRIES WITH HIGH SOLIDS CONCENTRATION HIGH RATE FILTRATION LOW FINAL CAKE MOISTURE LOW ENERGY CONSUMPTION CONTINUOUS OPERATION HIGH AVAILABILITY WITH MINIMAL
Magnetic Separation Magnetic Separators for Dense Media Recovery
Magnetic Separation www.metsominerals.com Magnetic Separators for Dense Media Recovery 1 Magnetic Separators for Dense Media Recovery Metso Minerals has produced Magnetic Separators for dense media recovery
Vacuum Pumps and Compressors for Filter Applications
Vacuum Pumps and Compressors for Filter Applications Industry Workhorses Nash liquid ring vacuum pumps and compressors produced by Gardner Denver Nash have been used in many industrial applications for
Vacuum Pumps and Compressors for Filter Applications
Vacuum Pumps and Compressors for Filter Applications Application Drum Drum Disc Horiz. Tray Tilting Precoat Belt Pan Agricultural products Corn Corn syrup Food processing Poultry Sugar cane Flue Gas Desulfurization
Proven solutions in ore processing
Proven solutions in ore processing Several customers rely on Larox solutions for their most demanding processes. Larox valves and pumps have proven their superior quality, reliability, excellent wear resistance
DELKOR FP FILTER PRESS. It pays to talk to a specialist. for the mining and metals industries.
DELKOR FP FILTER PRESS It pays to talk to a specialist TENOVA. Tenova INNOVATIVE is a worldwide SOLUTIONS supplier of FOR advanced METALS technologies, AND MINING products and engineering services for
Dry Stacking Filtration of Bauxite Residue with Filter Presses
Dry Stacking Filtration of Bauxite Residue with Filter Presses Andrew Hawkey 1, Davide Cavalli 2 and Idemilson Fritzke 3 1. Sales Representative Aqseptence Group, Brisbane, Australia 2. Director of Business
Rotary vacuum disc fiber filter in wastewater treatment plant introduction document
Rotary vacuum disc fiber filter in wastewater treatment plant introduction document Rotary vacuum fiber disc filter consists of a series of horizontally mounted rotary filter discs, each of which is composed
AN OVERVIEW OF TAILINGS MANAGEMENT SYSTEM SELECTION
AN OVERVIEW OF TAILINGS MANAGEMENT SYSTEM SELECTION TAILINGS SYSTEM SELECTION OBJECTIVE: Provide Guidance Encourage Discussion Discuss Custom Assessment of Tailings Management Systems THE PRESENTATION:
STACK SIZER TM. Patented Technology. The highest capacity, most efficient, fine wet screening machine in the world
STACK SIZER TM Patented Technology The highest capacity, most efficient, fine wet screening machine in the world Patented Derrick Stack Sizer The Derrick Stack Sizer has redefined the concept of efficient,
THE EXCELLENCE IN FILTRATION, BY NATURE WATER TREATMENT & SILT MANAGEMENT WASHING PRODUCT RANGE
THE EXCELLENCE IN FILTRATION, BY NATURE WATER TREATMENT & SILT MANAGEMENT WASHING PRODUCT RANGE FROM WASHING TO FILTRATION WITH MATEC, STEP BY STEP TO GREAT RESULTS Matec is a well-established leading
Separators for the beverage industry
Separators for the beverage industry www.andritz.com 2 Clarifiers for the beverage industry Every day, ANDRITZ SEPARATION clarifiers are satisfactorily operated in food and beverages processing plants
Hydrasand Continuous sand filter for efficient effluent cleaning
Hydrasand Continuous sand filter for efficient effluent cleaning ASK YOUR SEPARATION SPECIALIST andritz.com/separation 2 Sand filtration is a well-known technology for separation of small suspended solids
mott corporation Process Systems Safe, reliable, fully automated catalyst recovery. The Mott solution.
mott corporation Process Systems Safe, reliable, fully automated catalyst recovery. The Mott solution. Maximizing catalyst retention. Introduction. Process operations involving catalysts have traditionally
OUTOTEC INDUSTRIAL WATER TREATMENT
OUTOTEC INDUSTRIAL WATER TREATMENT Outotec industrial water treatment provides tailored water treatment solutions to produce water that meets environmental discharge regulations. Our technologies maximize
The New Decanter Generation Westfalia Separator ecoforce. Born to run. GEA Mechanical Equipment / GEA Westfalia Separator Group
Liquids to Value The New Decanter Generation Westfalia Separator ecoforce Born to run GEA Mechanical Equipment / GEA Westfalia Separator Group Manages Everything, Needs Little, Lasts Forever Westfalia
Relationship Between Liquor Yield, Plant Capacity Increases, and Energy Savings in Alumina Refining
JOM, Vol. 66, No. 9, 2014 DOI: 10.1007/s11837-014-1069-x Ó 2014 The Minerals, Metals & Materials Society Relationship Between Liquor Yield, Plant Capacity Increases, and Energy Savings in Alumina Refining
VGC Gypsum Centrifuge Flue Gas Desulphurisation (FGD)
VGC Gypsum Centrifuge Flue Gas Desulphurisation (FGD) 2 Excellence since decades 1917 Ferrum Ltd., engineering works and foundry, is founded as a family owned company in Rupperswil in Switzerland. 1935
Pumps & Systems. Face Unique Challenges with Proven Pumping Solutions. NETZSCH Pumps in the Mining Industry
Pumps & Systems Face Unique Challenges with Proven Pumping Solutions NETZSCH Pumps in the Mining Industry We are there, where you need us The global network at your side The extraction and processing of
The Benefits of Removing Oil from Water
The Benefits of Removing Oil from Water Table of Contents Why is Removing Oil from Water Important? 3 What is Oil Skimming? 6 Oil Removal Benefit #1: Reduces Costs 7 Oil Removal Benefit #2: Generates New
LFK Twin-Shaft Continuous Mixer. Intense mixing of dry and moist minerals
LFK Twin-Shaft Continuous Mixer Intense mixing of dry and moist minerals Headquarters of BHS-Sonthofen The company BHS-Sonthofen, headquartered in Sonthofen, is an owneroperated group of companies in the
VERTICAL LEAF FILTERS. Passion for Filtration
VERTICAL LEAF FILTERS Passion for Filtration OVERVIEW Twin Filter Vertical Leaf Filters are high-quality systems that can be used for numerous batch and continuous filtration processes. The system consists
SEPARATION FILTRATION UNLIMITED STARDISC THE VACUUM DISC FILTERS
SEPARATION FILTRATION UNLIMITED STARDISC THE VACUUM DISC FILTERS No solution on the market can match our latest disc filters in terms of sheer scale, or with such high filtration rates. This gives our
Shredding HORIZONTAL WASTE SHREDDERS VTH-VU SERIES
Shredding HORIZONTAL WASTE SHREDDERS VTH-VU SERIES Vecoplan VTH-VU Series Horizontal Waste Shredders The Ultimate Shredders for Lineal Scrap The Vecoplan VTH-VU Series horizontal shredders, or wood grinders
Focus SYSTEM ENHANCEMENTS
Focus AUXILIARY SYSTEM COMPONENTS SYSTEM ENHANCEMENTS Vecoplan Auxiliaries Solutions To Enhance Your Existing System In addition to engineering and manufacturing the finest shredding equipment available,
Paste Thickeners. Advanced Thickening Technology
Paste Thickeners Advanced Thickening Technology Paste Thickening What is Paste? Paste thickening technology is a long-term solution for many challenges facing the minerals industry. Thickening a stream
Quality of Washed and compacted Screenings
Quality of Washed and compacted Screenings Markus Roediger*, Wolfgang Branner** * Dr. Roediger Consult, Stuttgart, Germany (dr.m.roediger@t-online.de) ** Huber SE, Berching, Germany (brw@huber.de) ABSTRACT
UPGRADING OF A CONVENTIONAL PRECIPITATION LAYOUT IN EURALLUMINA REFINERY. Teodosi, A. and Candeloro, N. Eurallumina SpA, Portoscuso, Italy
Proceedings of the 6th International Alumina Quality Workshop 2002 UPGRADING OF A CONVENTIONAL PRECIPITATION LAYOUT IN EURALLUMINA REFINERY Teodosi, A. and Candeloro, N. Eurallumina SpA, Portoscuso, Italy
REVOLUTIONARY DEWATERING TECHNOLOGY FOR THE ENVIRONMENT INDUSTRY
SEPARATION REVOLUTIONARY DEWATERING TECHNOLOGY FOR THE ENVIRONMENT INDUSTRY ANDRITZ BELT PRESS SMX-Q ANDRITZ Separation revolutionizes the world of dewatering with the SMX-Q belt press. Engineered with
EASY AND EFFICIENT SLUDGE THICKENING
SEPARATION EASY AND EFFICIENT SLUDGE THICKENING POWERDRUM (PDR) DRUM THICKENERS With more than 30 years of experience in the development and manufacturing of drum thickeners, ANDRITZ Separation has acquired
DECANTER CENTRIFUGE. Experience the Change...
Experience the Change... DECANTER CENTRIFUGE WATER2 PEOPLE TEKNOLOGIES provides solutions to all technological problems of Solid-Liquid separation backed by a modern infrastructural base, expertise of
Classification of bauxite residue
Classification of bauxite residue Antti Häkkinen, D.Sc.(Tech) Professor (Solid/Liquid Separation Technology) Research Group of Solid-Liquid Separation Technology Competence Area of Separation Technology
High Pressure Solutions Pasteurization
1 High Pressure Solutions Pasteurization for Engineered Supercritical Solutions Fluids for HPP Innovations Extract Fast Safe Clean Pure Impregnate Uhde High Pressure Technologies 2 Extraction made by Uhde
Ability Fabricators Inc.
Ability Fabricators Inc. Your Partner For Custom Stainless Steel Fabrication & Process Equipment Tel: 1-905-761-1401 1-877-428-4866 Fax: 1-905-761-0649 Email: sales@abilityfab.com 187 Romina Drive, Concord
Filter Dust filtration for industrial process air
Filter Dust filtration for industrial process air www.andritz.com/ft Product-based filter solutions for industrial purposes Comprehensive experience in filtration and dust handling as well as state-of-theart
Your defined goals and objectives:
About us GECO GmbH was founded in 1977 as a private owned business by Josef Schlusche ( 2005). The company headquarters are located in Ketsch near Heidelberg. HOME Our customers: Administrative building
50 Years of PSA Technology for H2 Purification
50 Years of PSA Technology for H 2 Purification 1 50 Years of PSA Technology for H2 Purification The first industrial application of Pressure Swing Adsorption (PSA) went on stream in 1966 at a Union Carbide
Flue Gas Desulphurisation (FGD) Vertical Gypsum Centrifuges
Flue Gas Desulphurisation (FGD) Vertical Gypsum Centrifuges Ferrum Ltd. Centrifuge Technology T +41 62 889 14 11 Industriestrasse 11 F +41 62 889 15 13 CH-5503 Schafisheim centrifuges@ferrum.net Switzerland
SOLID LIQUID SEPARATION EXPERT SOFTWARE COURSES CONSULTANCY
SOLID LIQUID SEPARATION EXPERT SOFTWARE COURSES CONSULTANCY Software for Filters, Filtering Centrifuges and Hydrocyclones Design, Performance Simulation and Optimization Analysis of Test Data and Suspension
Dilute Stream Solid-Liquid Separations Using Continuous Vacuum Filtration Technologies
Dilute Stream Solid-Liquid Separations Using Continuous Vacuum Filtration Technologies Barry A. Perlmutter, President & Managing Director BHS-Filtration Inc. 9123-115 Monroe Road Charlotte, North Carolina
Overview brochure SERVICES
Overview brochure SERVICES People who are there for you fast, competent, for the long term Anyone can be fast. But for us that is just a basic prerequisite. The well trained BvL employees provide lasting
Krauss-Maffei Dynamic Crossflow Filter Efficient crossflow filtration
Krauss-Maffei Dynamic Crossflow Filter Efficient crossflow filtration ASK YOUR SEPARATION SPECIALIST andritz.com/separation Krauss-Maffei Dynamic Crossflow Filter Efficient crossflow filtration Crossflow
Vacuum Filter Belts. Product Information. Sefar filter belt solutions for Vacuum Belt Filters
Vacuum Filter Belts Sefar s innovative synthetic fabrics are the material of choice for horizontal vacuum belt filters. Sefar belts offer excellent separation efficiency and a long, trouble-free lifetime.
CATALYST FILTRATION for the Chemical Processing Industry using Mott LSI Backwash Filter Media
TECHNICAL BULLETIN CATALYST FILTRATION for the Chemical Processing Industry using Mott LSI Backwash Filter Media By Louise Stange, Research & Applications Specialist, Mott Corporation CATALYST FILTRATION
WASTE MINIMIZATION WITH POROUS METAL BACKWASH FILTERS
WASTE MINIMIZATION WITH POROUS METAL BACKWASH FILTERS Dr. Klaus J. Julkowski Dr. Kenneth L. Rubow Mott Corporation Dr. Ernie Mayer DuPont Presented at the Chem Show Conference New York City, NY November
For dense media recovery
Magnetic separators For dense media Magnetic separators 1 Magnetic separators for dense media Metso has produced magnetic separators for dense media since the mid-1960 s. Several hundred separators have
Experience Results with Recycling Equipment. Productivity. Profitability. Reliability
Productivity Profitability Reliability Experience Results with Recycling Equipment Experience Results with Superior Conveyor Designs For decades, our engineering staff has used its in-depth knowledge of
Crushing. Comminution
Comminution In order to separate the minerals from gangue (the waste minerals), it is necessary to crush and grind the rock to unlock, or liberate, valuable minerals so that they are partially or fully
World Pulp & Paper THE INTERNATIONAL REVIEW FOR THE PULP AND PAPER INDUSTRY
World Pulp & Paper THE INTERNATIONAL REVIEW FOR THE PULP AND PAPER INDUSTRY 2014 MIXING & INJECTION TECHNOLOGY Mixing innovation delivers value By Brian Duffy, Tim Nahley, David sirois and Ruben Manzanares,
Ultimate efficiency INDUSTRY
Ultimate efficiency INDUSTRY 2 Ultimate efficiency We have a deep attitude 3 Nearly two-thirds of the non-fuel minerals mined each year are aggregates. Dragflow has been involved in the design and manufacture
Perfecting the spunlace process: Evolution of ANDRITZ injector technology and the development of nexjet
Perfecting the spunlace process: Evolution of ANDRITZ injector technology and the development of nexjet In the production of hydroentangled nonwovens (spunlacing), the heart of the process is the Injector.
Filtration and separation technology. Product range. Automatic backwash filter. Selfcleaning scraper filter. Cake filtration
Automatic backwash filter Selfcleaning scraper filter Cake filtration Membrane filtration systems Precoat filtration Filter housings Filter elements Filter bags Filtration and separation technology Product
COAL. Flotation & Tailing. water treatment and silt dewatering plants
COAL Flotation & Tailing water treatment and silt dewatering plants The three Cs for the founders and their companies success are: Capacity, Competence, Courtesy. COMPANY Company Matec specialises in the
THE INTELLIGENT CHOICE. Fibre Cement Production Plants
THE INTELLIGENT CHOICE Fibre Cement Production Plants PRODUCTION PLANTS Fibre Cement Production Plants High quality, economic and flexible. Characterised by outstanding precision, productivity and reliability.
ADVANCED FILTRATION FOR WATER TREATMENT APPLICATIONS
ADVANCED FILTRATION FOR WATER TREATMENT APPLICATIONS About Filtersafe Filtersafe Technology Our Challenge With over three decades experience in automatic filtration of water, Filtersafe filters are equipped
Alfa Laval decanter centrifuge technology. Separating solids from liquids
Alfa Laval decanter centrifuge technology Separating solids from liquids Separating solids from liquids plays a key role in countless industrial processes. Decanter centrifuges from Alfa Laval perform
Trident. Package Water Treatment System
Trident Package Treatment System The Trident Package Treatment System When Microfloc products first introduced the Trident technology, it represented a significant advancement in water and wastewater treatment
Compact Sand Washing Plant
EvoWash At CDE, we are proud of our environment. That s why we have chosen the dragonfly as our symbol of constant quality improvement. Usually only seen near exceptionally clean water, these fastidious
SINGLE-STAGE FILTRATION WITH SINTERED METAL TUBULAR BACKWASH FILTERS
SINGLE-STAGE FILTRATION WITH SINTERED METAL TUBULAR BACKWASH FILTERS By: Dr. Ernie Mayer, DuPont Dr. Klaus J. Julkowski Louise L. Stange Mott Corporation Presented at the American Filtration and Separation
FOOD AND BEVERAGE PROCESSING
BILFINGER WATER TECHNOLOGIES FOOD AND BEVERAGE PROCESSING COMPREHENSIVE SOLUTIONS FOR BIO-FUELS, BREWING, CORN WET MILLING, ETHANOL, MALTING, STARCH, SUGAR TREATMENT AND WINE PRODUCTION 2 FOOD AND BEVERAGE
Dirty paper take up and filter cake stripper for separation of paper and waste are optional.
K 452 World-wide the most flexible filtration system - ully automatic filtration over filter paper ecause of the possibility of using different filter papers, the desired effects can be achieved. irty
FILTRATION IN PERFECTION. Innovative technology for the highest demands and highest quality.
FILTRATION IN PERFECTION Innovative technology for the highest demands and highest quality. Quality. Innovation. Service. We are your contact for the world of filtration. FAUDI does business globally in
Jay B. Dwyer. Senior Systems Engineer
CAUSTIC ETCH REGENERATION U.S. FILTER, INC. - WARRENDALE, PENNSYLVANIA Edward P. Klein Manager, Aerospace / Anodizing Systems Jay B. Dwyer Senior Systems Engineer SUMMARY.') Interest in caustic Etch Regeneration
ArcelorMittal, Canada
Mineral Technologies Worldwide Global Capability Mineral Technologies delivers Iron Ore beneficiation process solutions worldwide. Key regions that have benefited from our expertise in metallurgical testing,
Greater efficiency through on-demand paste production
Greater efficiency through on-demand paste production Greater efficiency through on-demand paste production Our automatic dispensing systems enable you to significantly improve the efficiency of your textile
FLUIDCON. Pneumatic conveying with FLUIDCON Operating experience and results by Claudius Peters
Pneumatic conveying with Operating experience and results by Claudius Peters The Problem Raw Meal from Silo to Preheater Tower Raw meal silo Solution A: Bucket elevator & air slide Preheater tower Solution
ChromaPur. Chromic Acid Purification System
Chromic Acid Purification System Eco-Tec s chromic acid purification system ensures dramatic cost savings and improved plating performance. Metal contaminants in a chrome plating bath lead to a decline
Introduction document of KHN package water treatment. plant (flocculation sedimentation and filtration)
Introduction document of KHN package water treatment plant (flocculation sedimentation and filtration) The package water treatment plant (flocculation sedimentation and filtration) is a water treatment
OPTIMISATION OF REFINERY PRESSURE LEAF FILTER PERFORMANCE BY DOSAGE OF FILTER AID INTO THE FILTER FEED STREAM
OPTIMISATION OF REFINERY PRESSURE LEAF FILTER PERFORMANCE BY DOSAGE OF FILTER AID INTO THE FILTER FEED STREAM I SINGH, P SAHADEO and N KALIDASS Transvaal Sugar Ltd, PO Box 47, Malelane, 1320, South Africa
Minerals Enduron HPGR High Pressure Grinding Roll
Minerals Enduron HPGR High Pressure Grinding Roll *First choice for energy efficient grinding 1 High Pressure Grinding - proven technology High Pressure grinding has become the go to technology for size
The Material Master Advantage
Material MasterTM The Material Master Advantage Built for easy access and user-friendly discharging of semi-bulk material. Dust tight Sure-Seal and Seal-Master systems provide 100% dust control. Flow-Master
HUBER Dissolved Air Flotation Plant HDF
HUBER Dissolved Air Flotation Plant HDF Efficient and dependable solution for: Wastewater treatment Valuable material recovery Water recycling HUBER Dissolved Air Flotation HDF for advanced (waste)water
DESIGN AND OPERATION OF POROUS METAL CROSSFLOW MICROFILTERS
DESIGN AND OPERATION OF POROUS METAL CROSSFLOW MICROFILTERS Dr. Klaus J. Julkowski Presented at the American Filtration and Separation Society Conference Nashville, TN April 23-26, 1995 1 DESIGN AND OPERATION
B-95S. Food Equipment Metal Separation, METAL Detection AND Material Handling
B-95S Food Equipment Metal Separation, METAL Detection AND Material Handling Eriez Programs for the Food Industry ProGrade Magnets A full line of low-cost magnetic separators ready to ship. PROGRADE features
DAF TECHNOLOGY IN TERTIARY TREATMENT FOR MUNICIPAL SEWAGE
MUNICIPAL SEWAGE Member of the SafBon Group DAF TECHNOLOGY IN TERTIARY TREATMENT FOR MUNICIPAL SEWAGE KWI Group is considered one of the pioneers of Dissolved Air Flotation (DAF) technology and is one
Reliable and efficient compressed air systems
Reliable and efficient compressed air systems 18-75 kw ROTARY SCREW COMPRESSORS Benefits Intelligent electronic controls Low noise levels Space saving and energy efficient design Engineered for Australian
Profile Wire Screens & Filter Media for Industrial Centrifuges
Profile Wire Screens & Filter Media for Industrial Centrifuges An exceptional alliance... Carbis Filtration, renowned manufacturers of profile wire screens and other filter media, have joined forces with
FLOTTWEG CENTRIFUGES, BELT PRESSES AND SYSTEMS For Efficient Solid-Liquid Separation
FLOTTWEG CENTRIFUGES, BELT PRESSES AND SYSTEMS For Efficient Solid-Liquid Separation FLOTTWEG Our Company We have been manufacturing centrifuges, belt presses, and processing systems for mechanical solid-liquid
LIFE Project Number LIFE03 ENV/GR/ Layman s Report
LIFE Project Number LIFE03 ENV/GR/000213 LIFE PROJECT NAME Rehabilitation of abandoned bauxite surface mines using alumina red mud as filler (REFILL) Reporting Date 30-11-2006 The large open pit areas