Mainly used in the blast furnace coke filter and for copper, lead, zinc, titanium, antimony, mercury and other non-ferrous metal smelting blast furnace, reducing agent, heating agent and material column skeleton. Blast furnace using coke instead of charcoal, laid the foundation for modern large-scale blast furnace is a major milestone in the history of metallurgy. For the blast furnace operation to achieve better technical and economic indicators, metallurgical coke (metallurgical coke) must have the appropriate chemical and physical properties, including the smelting process of thermal properties. In addition to a large number of coke for iron and non-ferrous metal smelting (metallurgical coke), but also for casting, chemical, calcium carbide and ferro-alloys, and its quality requirements vary. Such as foundry coke, generally require large size, low porosity, high fixed carbon and low sulfur; chemical coke gasification, strict requirements for strength, but requires that the reaction is good, high ash melting point; calcium carbide, coke production requirements to maximize the amount of fixed carbon. Coke filter quality indicators high temperature carbonization coke is the solid product, the main component is carbon, the pore structure of spores (spore porous body or a hole) having cracks and irregular. Crack a direct impact on how much strength and crushing strength of coke, crack degree to which targets general (referring to the crack length per unit volume of coke in the number) to be measured. Spore structure index holes mainly used to measure the porosity (pore volume means the total volume of the coke percent) expressed it affects the reactivity and coke strength. Coke for different purposes, for different porosity index requirements, general requirements of metallurgical coke porosity of 40 to 45 percent, Foundry requires 35 to 40 percent, export coke requirements at about 30%. Crack coke with low degree of porosity, the use of coal and coke have a direct relationship, such as the gas coal-based coke smelting too, cracks and more, high porosity, low intensity; while in coking coal as a basis for refining the resulting coke crack small, low porosity, high strength. Coke filter strength is usually crushing strength and abrasion resistance two indicators to represent. Crushing strength of coke is the coke resistant to external impact forces without the ability to crack or defect structures shattered along with the M40 value represents; abrasion strength of coke is the coke can resist alien Friction force without producing surface glass-forming ability or powder debris, expressed M10 values. Cracking of coke affect M40 crush strength value, pore structures Coke spore M10 impact abrasion resistance value. Determination of the value of M40 and M10 are many of China's multi-use German Migong drum test method. For help purchasing coke filter, please call 0371 -60,263,358 Tel: 18337183918 Zhengzhou Tianhe water purification materials Limited committed to provide you the best quality products and the most sincere service. Welcome to the new and old customers to inquire, we have technical experts 24 hours to provide you with technical services. In this, I wish you good health, plenty of money. Learn more about the coke filter expertise, please visit: www.zzth66.com / sources of information for this product Tianhe water purification materials Co., Ltd., Zhengzhou, please indicate the source, please visit: http://www.zzth66.com / lvliao / jtll.html