Supply of wear-resistant pipe, ultra-high molecular weight polyethylene pipe

A detailed description of the supply pipe wear, ultra-high molecular weight polyethylene pipe: The pipe wear, ultra high molecular weight polyethylene pipe: 1, paste-like solid-liquid mixture slurry transportation transporting mainly water as the carrier of the hydraulic pipes transportation methods, easy to wear, corrosion, scaling and other transportation problems. UHMWPE pipe its resistance to wear, corrosion, fouling, and low coefficient of friction, can replace ordinary steel, stainless steel, special steel and other applications in the following areas. Mining [1] Mining mineral processing, metallurgical coal, chemical ore, iron ore, non-ferrous metal ores and non-metallic mineral, and pulp concentrator extensive use of pipeline transportation, such as ore tube, tailings management, concentrate tube flotation system tubes. Coal transport produced coal washing flotation feed, flotation concentrate and heavy medium suspensions of solid-liquid mixture to be piped. According to Japanese statistics, transport slurry concentrate tube life of 15000h, when the original tailings pipe a minimum of 6000h, mortar tubes filled with mostly 6000h, the longest time is 1000h [18]. At present, China concentrator tailings, concentrate piped mostly steel, since pulp contains about 30% of the iron ore, steel wear quite severe, life just 1-2a, and every six months to turn 90 °, a lot of work. Powder metallurgical coke industry, ore, pulp and smelting waste treatment also involves a large number of pipelines. Steel Company as a concentrator for leather featuring a variety of minerals delivery line up to 60km, the worst parts of the wear and tear usually requires several weeks to replace a pipe, the pipe at intervals not rest long on the need to flip, workload can be imagined. Our country is coal mining country, coal mining up to over 90,000 [19]. According to incomplete statistics, the need to wear a plastic mine each year about 20,000 tubes t, if widely used, the annual demand of more than 40,000 t, saving steel, 200,000 million t. It was reported [20], the Federal Environment Protection Committee of the provisions of the mining industry, especially the ore to be used UHMWPE pipe draining operation. [2] CWS CWS project is a new high-viscosity liquid and solid mixed fluid, composed of about 70% coal, 30% water and 1% chemical additives formulated, can pass as the oil piped to the end, then dehydrated, dried and processed to the user. CWS paper factory in Beijing, Guilin, steel mills, rolling mills and other plants fueled with Shaoxing were successful [21]. China since the early 1980s to start planning for the 10 coal pipes of different lengths, including Bangladesh - Wei pipeline up to 600km [22]. Coal pipeline is currently insufficient capacity to solve our major coal transportation. 1998 Energy Plan of the development of long-term development of the industry obviously pointed out: "To develop pipelines transporting coal, transport CWS." Currently, China has Beijing Jingxi coal slurry plant, Shandong Yanzhou CWS factory seven coal slurry plant [23]. Such as the use of UHMWPE pipe, wear and corrosion resistance can be high viscosity solid-liquid mixture produced, and because of its self-lubricating properties and reduced transport resistance. Evidently, a key project for long-distance transportation of coal head, has been the high costs [$ 30,000 / t] purchased from abroad a number of UHMWPE pipe as a conduit. Wear conduit features: (1) high wear characteristics unique molecular structure, with a high resistance to sliding friction capability. 4-7 times the wear resistance of carbon steel (2) high impact resistance of the product according to GB1843 standard Izod impact test achieved without damage. (3) excellent chemical stability can withstand erosion of potent chemical substances, lye, acid in from corrosion, performance is quite stable. Ultra-high wear-resistant pipe applications: ultra high molecular weight polyethylene pipe focused on the advantages of various plastics, impact resistance, abrasion resistance, self-lubricating, corrosion resistance, low temperature, health non-toxic, non-sticking, non-absorbent and other comprehensive feature , known as the "Plastic amazing," the best performance of the new engineering thermoplastics. Widely used in mining (ore, pulp, tailings discharge pipeline), electricity, metallurgy, petrochemical, food, environmental protection and river dredging and other industries.