stationary pneumatic transport

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2 Pneumatic transport Pneumatic transport is the way of the transport of bulk material. The carrier medium is air, so the transport of material through duct by direct or indirect dynamic effects of air flow upon particles to be transported is concerned. Pneumatic transport can be classified to mobile and stationary transport. As mobile pneumatic transport we can count the transport of bulk material by various mobile means containers, dry-bulk tank trucks, semitrailers. As stationary pneumatic transport we can consider fixed built-in equipment at certain place. ZVVZ-Enven Engineering supplies stationary pneumatic transport (hereinafter referred to as pneumatic transport) as turn-key deliveries including all its necessary components. Field of application of pneumatic transport As an independent equipment designed for the transport of bulk materials in various production processes, mainly for the transport of nonadhesive, powdery or fine granular material, such as cement, fly ash, limestone, kaolin, foundry sand etc. As an additional part of air handling systems, used for the removal of separated solid particles for storage and dumping of waste or for transport of separated products for further processing.

3 Types of stationary pneumatic transport Low pressure transport Medium pressure transport High pressure transport Pneumatic channel transport As an example of the low pressure transport we can consider the ejector mixer. The transport distances are limited by transport air pressure to be used. Usual transport outputs of the low pressure transport are 0.1 to 2 t/h at transport distances of 30 to 40 meters. The medium pressure transport uses blowers with the air pressure up to 0.1 MPa as sources of air and special rotary feeders as mixers. The functional elements of the high pressure transport are cell and screw feeders. The screw feeders also known as Fullers pumps are suitable for smaller construction heights, for transport output of 60 t/h and distances up to 300 meters. However they are not suitable for the transport of abrasive materials. The cell feeders however find the best application and are used for the transport of large volumes of material for long distances. Transport output depending on size of used feeder can be 10 to 150 t/h at transport distance up to 1,000 meters. Pneumatic channel transport is convenient especially from the point of view of energy saving and lower mechanical wear. This kind of transport is suitable for outputs up to 400 t/h of transported material. The slope of the channel is 4 to 10 %. It can be used for shorter transport distances where a natural decline can be took advantage of. The above mentioned systems of pneumatic transport can be extended with elements of mechanical transport and thus it can meet the most demanding requirements of the customers.

4 High pressure pneumatic transport t and storage of bulk material The system of the high pressure pneumatic transport consists of: equipment for easy unloading of transported material from the storage tanks into a transport device, i.e. the aeration equipment of storage tanks, storage tank closures and pneumatic unloader, feeder of the material, where the material gets mixed with the transport air and is carried through the pipeline to the place of destination, pipeline for transport which connects the place where the material is loaded to the place of destination, including branch pipes, Y-pieces and closures, separator which separates the transported material from transport air and provides the required purity of air which is emitted into the surrounding environment, source of transport air, fitted with the distribution elements of air duct, safety, control and closing fittings, air drier, water separator and air tank Storage tank 2 Filling duct 3 Aeration 4 Closure of storage tank 5 Pneumatic unloader 6 Cell feeder 7 Ventilation of cell feeder 8 Closure of transport duct 9 Transport duct 10 Y-branch of transport duct 11 Operating storage tanks 12 Safety device 13 Filter device of storage tanks 14 Pipeline distribution system of compressed air 15 Storage tank closure 16 Feeder 17 Cyclone dust separator

5 Pneumatic transport with mixers The system of pneumatic transport of material with mixers is suitable for dry, nonadhesive, bulk materials, transported continuously in smaller volumes for further processing or storing (for example transport of separated fly ash in boiler houses). The separated material falls from the discharge hopper into the rotary feeder with a mixer below it, where the material is mixed with air. The source of compressed air is a fan or a blower. Deaeration of operating storage tanks is performed with help of a filter device, located on the storage tank. Its regeneration is performed by a pulse-jet cleaning. 1 Discharge hoppers of separators 2 Operating storage tank 3 Fan source of transport air 4 Damping piece 5 Air duct including control elements 6 Distribution of auxiliary air including orifice plates 7 Material mixer 8 Material feeder 9 Filter device of storage tank Pneumatic transport with aerating channels In some cases the pneumatic transport with aerating channels is better to be used instead of high pressure pneumatic transport. Especially for short distance transport where there are suitable conditions and there is enough space for the necessary incline of the pneumatic transport channels. In this case the transport equipment consists of a source of compressed air (mostly a fan station), compressed air supply with regulating element, channels, including inlets for material, branches, ventilation flaps, discharge holes and deaeration. The transport channel of modular structure enables various options of transport line configuration: inlet of material from several places, branching and discharging of material, including inspection holes, inlet of transport air and deaeration.

6 1 1 Discharge hopper 2 Closure (slide valve) 3 Material feeder 4 Transport channel 5 Fan station including air filter 6 Air supply including regulation of transport air supply 7 Deaeration Main functional products of pneumatic transport Chamber feeders up to 150 t/h transported material temperature max C size 0.16; 0.42; 0.63; 1; 3.15; 8 and 12 m³ Pneumatic unloader of storage tanks up to 200 t/h transported material temperature 120 to 200 C excess of pressure for aerating the unloader 40 to 150 kpa Pneumatic conveying troughs from 20 to 270 t/h working temperature max C sizes 160; 250; 400 mm Aeration pressure troughs 60 to 250 t/h working temperature max C sizes DN 200, DN 400 Flap closures of transport pipeline acc. to material and pipeline diameter transported material temperature max C sizes DN 50, 65, 80, 100, 125 a 150 Y-branches, transport pipeline chutes acc. to material and pipeline diameter transported material temperature max C sizes DN 50, 80, 100, 125 a 150

7 Aeration cabinets transported material temperature max C standard sizes from 560 mm to mm atypical models as per requirements Aeration boxes aerated material temperature max C sizes 375 x 375 mm Whirl separators transported material temperature max C sizes (diameter) 400, 630 a 900 mm model with lid, without lid, with insert, without insert inlet branch DN 150 Aeration devices for concrete storage tanks transported material temperature max C sizes as per requirements 5 200; mm Aeration devices for silos and steel storage tanks transported material temperature max C sizes as per requirements for silos and storage tanks of all sizes Accessories of pneumatical transport equipment Distribution systems of transport and air duct, safety, control and closing fittings, air driers, water separators and air tanks, downflow Y-branches with a flap and segment ones for distribution of flow of transported material, silos and storage tanks including installation of filters, safety fittings and level gauges. If required the company ZVVZ-Enven Engineering supplies special equipment from the field of handling and storage of bulk material.

8 Complete supply program Equipment for the cleaning of waste gases free of solid and gaseous polluting matters Equipment for pneumatic transport of bulk material Equipment for air-conditioning and ventilation of nuclear power plants Equipment for air-conditioning of buildings and ventilation of industrial objects, mines, tunnels and underground Selected references of pneumatic transport Teplárna Písek, a.s. CZ Písek, heating plant; low-pressure conveying of fly-ash from hoppers of ESP; 1.5 t/h; 1996 Heidelberg Cement CZ Brno-Maloměřice, cement plant; chamber feeder, conveying of cement from silos; 60 t/h; 1997 Dalkia Česká republika, a.s. CZ Třebovice, power plant; chamber feeder, conveying of fly-ash from silos; 7.2 m³/h; 1998 Sklopísek Střeleč, a.s. CZ Střeleč, sand quarry; conveying troughs, discharge of saind into tank trunks; 250 t/h; 1998 Talorm, a.s. CZ Zábřeh, heating plant; rotary feeders, conveying of fly-ash into tanks; 180 kg/h; 1998 Dalkia Česká republika, a.s. CZ Olomouc, heating plant; conveying troughs, discharge of fly-ash into silos; 1998 ČEZ, a.s. CZ Tisová, power plant; screw-feeders, conveying of fly-ash from hoppers of ESP into silos; IBAU M.; 1998 Vulkan a.s. CZ Hrádek nad Nisou, rubber works; middle-pressure conveying of lime from tank trucks into silos and tanks; 5 m³/h; 1998 Heidelberg Cement CZ Brno-Maloměřice, cement plant; aeration device, filling of silos with fly-ash; 1999 ČEZ, a.s. CZ Temelín, nuclear power plant; high-pressure conveying, filling of silos with lime-hydrate; 15 t/h; 1999 ČEZ, a.s. CZ Tisová, power plant; conveying troughs, filling of tank trucks with desulphurization product; 2000 Plzeňská energetika, a.s. CZ Plzeň, heating plant; chamber feeder, conveying of fly-ash from hoppers of ESP into silos; 10 t/h; 2000 Vodárenská a.s. CZ Hosov, water processing plant; compressor station, filling of silos and aeration of lime-hydrate; 20 t/h; 2000 Vulkan a.s. CZ Hrádek nad Nisou, rubber works; aeration device, conveying of air-lime from silos into tanks; 5 m³/h; 2000 CINERGETIKA Ú/L a.s. CZ Ústí nad Labem, heating plant; chamber feeder, conveying of fly-ash from silos; 8 t/h; 2001 Duslo, a.s. SK Šala, chemical plant; middle-pressure conveying, transport of bitter spar from RAJ wagons into silos; 25 t/h; 2001 ČEZ, a.s. CZ Dětmarovice, power plant; chamber feeder, conveying of fly-ash from Lungstöms into silos; 2001 Sokolovská uhelná a.s. CZ Vřesová, power plant; chamber feeder, filling of silos with fly-ash; 32 t/h; 2001 OKD, OKK, a.s. CZ Ostrava, coking plant Svoboda; chamber feeder, conveying of coke dust; 15 t/h; 2001 SEVEROFRUKT, a.s. CZ Trávčice, food industry; low-pressure conveying of powdered vegetables into tanks; 500 kg/h; 2001 Skloplast, a.s. SK Trnava, chemical plant; chamber feeder, filling of silos with calumnite; 3 t/h; 2001 Mikrob Čebín a.s. CZ Čebín, chemical plant; chamber feeder, conveying of fodder; 13 t/h; 2002 Ornela a.s. CZ Desná, glass works; high-pressure conveying of glass sand into tanks; 5 t/h; 2002 Povážská cementáreň, a.s. SK Ladce, cement plant; low-pressure conveying of limehydrate dust from mechanical separator to flue way; 1.2 t/h; 2002 Kdynium, a.s. CZ Kdyně, foundry; conveying troughs, repair of sand conveying; 2003 SILON a.s. CZ Planá nad Lužnicí, chemical plant; low-pressure conveying of granulate into the processing hall; 1 t/h; SčV, a.s. CZ Kozičín, water processing plant; filtration, aeration device, compressor station, storage of lime-hydrate; 20 t/h; 2004 SILON a.s. CZ Planá nad Lužnicí, chemical plant; low-pressure conveying of granulate into the processing hall; 1 t/h; 2004 Skloplast, a.s. SK Trnava, chemical plant; high-pressure chamber feeder, conveying of lime-hydrate from hoppers; 2-3 t/day; 2004 Schwan Stabilo ČR, s.r.o. CZ Český Krumlov, producer of stationery; compressor station, distribution of pressure air around the processing hall; 2005 Skloplast, a.s. SK Trnava, chemical plant; chamber feeder, conveying of limehydrate dust from bag filter silos; 2005 Sokolovská uhelná a.s. CZ Vřesová, power plant; chamber feeder and aeration device, conveying of fly-ash from hoppers of ESP, unloading into tank trucks; 9 t/h; 2005 GUP Tádžikcement TJK Dushanbe, cement plant; chamber feeder, conveying of cement from cement kiln into silo; 50 t/h; 2005 Železárny a drátovny Bohumín, a.s. CZ Ostrava-Bohumín, metal works; chamber feeder, fitting of railway engines with sand; 1.5 t/h; 2005 ASA Steel Industries Trading RU Asha, metallurgical plant; low-pressure conveying of coke dust from hoppers of bag filter, pelleting, loading of trucks; 240 kg/h; 2005 Sokolovská uhelná a.s. CZ Vřesová, power plant; conveying of multi-dust by fuller pumps and storage; 20 t/h; 2006 Dalkia Česká republika, a.s. CZ Ústí nad Labem, heating plant; conveying of fly-ash from hoppers of ESP by screw conveyers, high-pressure conveying from inter-silos and rear drafts; t/h; 2007 Teplárna Tábor, a.s. CZ Tábor, heating plant; feeder chambers, high-pressure conveying of fly-ash from hoppers of ESP into silos, unloading into road tank trucks; 19 m³/h, 150 t/h; 2007 SILON s.r.o. CZ Planá n. Lužnicí, polyester fibres producer; transport fan, low-pressure conveying of plastic pulp chips (10x10x0.1 mm) from big-bag storage into technology; 1400 kg/h, 1700 kg/h; 2007 ŠKODA AUTO a.s., CZ Mladá Boleslav, automobile factory; chamber feeders, reconstruction of existing conveying facilities of bentonite; 1 t/h; 2007 Slovenské elektrárne, a.s. SK Nováky, power plant; chamber feeders, high-pressure conveying of fly-ash from hoppers of ESP and bottom-ash from boiler; 50 t/h, 20 t/h; 2007 Cembrit, a.s. CZ Beroun, building industry; chamber feeders, high-pressure conveying of cement from storage silos into inter-storage tanks; 12 t/h; 2008 ČEZ, a.s. CZ Mělník, power plant; chamber feeders, reconstruction of downtakes and conveying of fly-ash from hoppers of ESP; 2008 KDYNIUM Kdyně, a.s CZ Kdyně, foundry; chamber feeders, reconstruction of conveying of sand from storage tanks; 5 t/h; 2008 Amplu servis, a.s CZ Třebovice, power plant; pneumatic troughs, reconstruction of conveying of fly-ash from hoppers of ESP into inter-storage tank; 5,2 t/h; 2008 VKG Energia OÜ EST Kohtla-Järve, power plant; chamber feeders, conveying of fly-ash from hoppers of ESP, combustion of blue stone; 1 t/h; 2008 ŠKODA AUTO a.s., CZ Mladá Boleslav, automobile factory; chamber feeders, reconstruction of conveying of sand; 1 t/h; 2008 SES Tlmače, a.s. TUR Seydisher, power plant; pneumatic conveying facility of bottom ash and lime, boiler room accessories, aeration devices of storage tanks, filter devices; 2008 SES Tlmače, a.s. TUR CATALAGZI, Zonguldag; pneumatic conveying facility of bottom ash and lime, boiler room accessories, aeration devices of storage tanks, filter devices; 2008 Plzeňská energetika, a.s. CZ Plzeň, power plant ELÚ III; chamber feeders, conveying of fly-ash from hoppers of ESP into storage silos; 7.6 t/h, max t/h; 2008 INEKON POWER, a.s. Cuba PUNTA GORDA, nickel works; chamber feeders, conveying of nickel ore dust from hoppers of bag filters; 15 t/h; 2009 Plzeňská energetika, a.s. CZ Plzeň, power plant ELÚ I; chamber feeders, conveying of fly-ash from hoppers of ESP from storage silos; 6.5 t/h; 2010 Dalkia Česká republika a.s. CZ Trmice, power plant; forced withdrawal of dust from screw conveyor, filtration and conveying of desulphurization product; 2010 České lupkové závody a.s. CZ Nové Strašecí, building industry; unloading of wagons, conveying of fly-ash into storage silo; 120 t/h; 2010 Třinecké železárny a.s. CZ Třinec, metal works; pneumatic dusting of bag filter with coke dust; 2010 ZVVZ-Enven Engineering, a.s. Sažinova Milevsko Czech Republic Phone: * Fax: info@zvvz-enven.cz