Main application
PU-lined composite pipe has comprehensive performancesuch as excellent wear resistance,acid-proof,anti-alkali,anti-scaling,radiation resistance,hydrolysis resistance,highelasticity,mechanical impact resistance etc.It can be widelyused in the transport of coal ash,slag,mineral powder,alumi-num liquid and slurry etc.and corrosive medium in electrici-ty,coal,mining,building materials,chemical industry
Power Industry
Ash handling pipe,slag pipe,grey water recycling pipe ofthermal power plant.For fresh water in power plant,it isbetter to use PU-lined composite pipe in the transportsystem of ash handling and acid medium.
Coal Industry
Dense-medium separation and long distance coal conveyingpipe system in coal washery.Sand backfill in coal mining.Minìng Industry
Iron ore slurry,ore concentrate,tailings transportationsystem;closed cycle pipe floatation system;water and sedi-ment transportation system.Building Materials,Chemical Industry
Cokeparticles transportation in iron and steel plant;red mudtransportation in aluminium manufacturer;coal dust transpor-tation in cement plant.Transportation of corrosive acid andsalt,fluid pipelines,such as pipelines in oil production,siltremoval engineering,urban water supply system,and Alfluid conveying pipe.All have obvious effects.
ExcellentWearability
Dueto a better elasticity of PU lining,when subjected to theimpact of medium,PUis forced to compress under the actionof external force.After external force disappears,polyurethanerecovers.This kind of "conquering the unyielding with theyielding"greatly reduces abrasion caused by direct andintense erosion to inner wall of pipe.Its wear life is dozen oftimes than steel pipe.
Anti-scallng
The inner wall is smooth and transparent,and the absoluteroughness of the inner wall is 0.082,which can reduce theoperating expenses.
Little Resistance During Operation
Unlike rubber products,there's no swelling phenomenon in thewater,so its usability will not be affected.
Good Water Stability and Ageing Resistance
Elastomer of PU lining has a symmetrical molecular structure,which forms external nonpolar state.Thus the adsorption ofCO32-,HCO3-,OH-and Ca2+in the slurry can't beformed.And the inner surface is smooth and has good elastici-ty,which prevents the adhesion of scale layer,so it has betteranti-scaling performance.
Good Combinatlon
PU lining and steel pipe have a good combination.With aunique process,the combination of pouring polyurethaneelastomer and steel pipe reaches 100%.Because of uniqueflanging process,fall off and partial tear will not appear.
Lght Weight &Convenient Installatlon
Because of the use of thin wall,the weight is relatively light.Many connection methods can be used in the installation:flange connection,flexible pipe joint connection,welding con-nection
patent number
PU-lined composite pipe patent number:201210314446.2