Ductile iron pipe systems for. mining pipelines. ductile iron technologies
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1 Ductile iron pipe systems for mining pipelines ductile iron technologies
2 Mining pipelines Principles pipelines in mines are technical systems which are constantly used mainly for dewatering mines or slurry transport. Mining pipelines from TRM critical systems require integrated solutions Pipes used in mines must usually handle high pressures, daily changes of PH-values or chemical composition of the water. Furthermore an outstanding difference to other typical pipelines applications (f.e. drinking water pipelines, turbine penstocks) is the needed flexibility to make changes in the pipenetwork once the pipeline is in operation. Beside this focus on easy maintenance there is also a high contribution to safety at work. The pipes must be able to function reliably in every situation that can occur f.e. massive soil settlements, earthquakes. Ductile iron pipe systems from TRM with their large safety margins and VRS -T-connection offer this 100% solution through: 1. Operational reliability: Massive. Safe. Compared to other materials, cast iron pipes from TRM offer unique mechanical capabilities and reserves. Therefore our products withstand pressure surges and possible unforeseen influences over a long lifetime. A worldwide unique synthetic modified cement mortar lining offers extraordinary higher adhesive strenght, more elasticity and higher machanical restistance than any other cement lining. 2. VRS -T connection: Simple. Fast. A robust pipe system is created by the most simple locking mechanism which allows a very short installation time. In addition, TRM offers a unique, flexible range of fittings and solutions. A pipe system is much more than just pipes and fittings. In a comparison between different pipe materials, developers assess the possibility for adaptation to local conditions and requirements. TRM staff work directly with engineers, construction companies and customers on site to solve problems even before they occur. They rely on many years of experience in this industry and assistance of technical experts at our site in Hall in Tirol, to support during all phases of the project, from planning to commissioning. This creates the real economic value that goes beyond euros per meter. TRM integrates pipes and other equipment or components in mines. If necessary, TRM will clarify the boundary conditions, co-ordinate work with other contractors. This service is becoming increasingly important for customers, especially where liability issues are concerned. After all, who can guarantee the reliability of the overall pipe system if many single components are bought from various traders instead of from one OEM? Who is reliable if intermediate traders were chosen when the pipeline was contracted? If additional goods are found to be necessary during construction, will they actually be able to be supplied on time? Developers and firms installing mining pipelines are already considering this today and are opting for real solutions made by TRM, made in Austria. 2 Mining pipelines TRM Tiroler Rohre GmbH TRM Tiroler Rohre GmbH Mining pipelines 3
3 Mining pipelines Adapter and expansion piece Used to compensate for building tolerances when ductile cast iron pipes are fitted and to enable easier dismantling of pipe parts in case of maintenauce. MMB branch piece with socket creates a simple, highly durable branch and saves on fittings. Easy connection for air- or drain valves. Inlet cone Inflow opening into the ductile cast iron pipe. Expansion joint to absorb slope movements. The insert length of the lower socket is longer than usual. The spigot inserted can move in the fitting and hence absorb slope movements. MK fitting Bend with socket and spigot. Different angles are available. Pipe support to provide a stable base for ductile cast iron pipes. Static loads? No problem with ductile cast iron pipes from TRM. FFR fitting Nominal width reduction with a flange at both ends or a transition piece made of steel. 4 Mining pipelines TRM Tiroler Rohre GmbH TRM Tiroler Rohre GmbH Mining pipelines 5
4 Full speed! VRS -T-connection and the mechanical properties of the material are the top choice for mining pipelines. Ductile means deformable. The endurance test shows the mechanical capabilities and reserves that are unique for ductile iron the top choice for mining pipelines with stringent safety requirements. System pressures (pipes and fittings) up to DN 1000 with restrained joint VRS -T /BLS DN PFA [bar] Connection Max. deflection [ ] Lock perm. tensile force[kn] VRS -T 5 2 locks + catch VRS -T 5 2 locks + catch VRS -T 5 2 locks + catch VRS -T 5 2 locks + catch VRS -T 4 2 locks + HD lock + catch VRS -T 4 2 locks + HD lock + catch VRS -T 4 4 locks + 2 catches VRS -T 3 4 locks + 2 catches 650 In order to ensure that the safety reserves of the ductile iron pipe are met by the entire pipe system, operators rely on the positive locked VRS -T-connection. In this way, individual pipes are connected to form one system without the need for time-consuming welding, screwing, testing, later surface treatment or problems during loosening and adaptation of connections. tolerances to be compensated for. Detailed information for planning can be found in our ductile iron pipe systems manual that can be downloaded at: HYPERLINK " VRS -T at a glance VRS -T 3 4 locks + 2 catches BLS 2 9 segments BLS 1,5 10 segments BLS 1,5 10 segments BLS 1,5 13 segments BLS 1,5 14 segments 1560 Higher pressures available on request! Engineering maintenance authorities & regulations The simple installation process doesn't just save time; in most cases it can be carried out by the construction firms themselves. VRS -T flange connection (16 screws PN16) The pipes can be deflected up to 5 per joint. This means that, with a resulting curve radius of 57 m, the ductile iron pipe can be adapted to follow the direction of the road, bridge or tunnel, and savings can be made on fittings. Furthermore, the system allows building welding Assembly time [min] Up to 3x faster installation than flange connections. Up to 6x faster than welding steel pipelines safety at work TRM pipe systems construction companies Retaining chamber Weld bead VRS -T / TYTON gasket Socket T R M - S O L U T I O N S Lock Spigot understand produce integrate complete 6 Mining pipelines TRM Tiroler Rohre GmbH TRM Tiroler Rohre GmbH Mining pipelines 7
5 The right coating Protecting the mechanical advantages of the ductile cast iron pipe Ductile cast iron pipes are supplied with internal and external coatings. The right coating maintains the superior mechanical properties for decades. The most important influences when choosing the right coating are: transported fluid soil and groundwater corrosiveness grain size of the bedding material temperature of the fluid ambient temperature installation method influence of electricity currents Different cement mortar linings are available for the internal coating depending on the fluid, for instance, for particularly soft or acidic water. Beside different PH values the almost daily change of grainsizes of sediments has an high influence on the pipeline lifetime. A worldwide unique synthetic modified cement mortar lining is an exclusive customized solution with sophisticated acrylat dispersion developed for mining pipelines. Higher chemical abrasive restistance (medium containing oil or saline water) Higher mechanical abrasive restistance (sediments) Higher elasticity Extraordinary higher adhesive strength Same corrosion protection like portland / high aluminia cement lining Solvent-free The following options are available for the external coating: Zinc coating with polyurethane layer (PUR) or cement mortar coating (ZMU) TRM ductile cast iron pipes are normally supplied with a zinc coating of 200g/m 2 and PUR or cement mortar coating. zinc ions Zn ++ precipitation of zinc salts (self-healing effect) The protective effect of the zinc coating with cover has been tried and tested on ductile cast iron pipes and avoids theneed for additional cathodic protection for the pipe. PUR coating (open pores) anodes (large area) local damage zinc coating annealing skin This protection results from: the electrochemical effect of the zinc the reduction of post-diffusion of the cast wall attacking medium due to the inert zinc cathode (small area) reaction products that are formed the anti-bacterial effect of zinc salts S Y N T H E T I C M O D I F I E D C E M E N T MOR TAR LINING Abrasion "a" in mm 0,8 0,7 0,6 0,5 0,4 0,3 0,2 Irrespective of the cover coating of the pipe, fittings are sand-blasted and have an epoxy powder coating. This means that they can be used in soils of any degree of corrosiveness. C A S T I R O N P I P E 0, Detailed information on all cover coatings and their areas of application can be found Polymer concrete pipes GRP pipes Concrete pipes Ceramic pipes PVC-U pipes Ductile cast iron pipes in the TRM manual for ductile cast iron pipe systems. Please also contact our sales staff. C E M E N T M O R TA R C O AT I N G ( Z M U ) ZMU. Premium protection for a premium pipe. 8 Mining pipelines TRM Tiroler Rohre GmbH TRM Tiroler Rohre GmbH Mining pipelines 9
6 Mining pipelines in practice 10 Mining pipelines TRM Tiroler Rohre GmbH TRM Tiroler Rohre GmbH Mining pipelines 11
7 Tiroler Rohre GmbH develops, produces and markets high quality systems for transporting water and for deep foundations of structures made of ductile cast iron. The durable properties of the material, innovative product technologies and a proven track record in the applications of our customers make us the leading provider of water and foundation engineering solutions. Our products and services Our products are efficient, durable and robust. They are known especially for their ecological and economic benefits. Thanks to the properties of ductile cast iron and our expertise in the areas where our products are used, we are able to overcome extreme challenges. We are known for our skill, network of industry partners and reliability. Thanks to their long service life and the careful use of resources, our products and services help to protect precious water resources. Contact TIROLER ROHRE GMBH TRM is a full member of EADIPS /FGR Innsbrucker Strasse Hall in Tirol Austria T F E office@trm.at 04/2015 Photos: istock, Tiroler Rohre
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