The wear-resistant ceramic coating was obtained by Wuhan Dongzhen Technology Co., Ltd. by introducing production technology and formulas from Germany, and jointly with well-known domestic scientific research institutions for further research and development. It is mainly composed of wear-resistant aggregates such as brown corundum, silicon carbide and ultra-fine powder. It is composed of two phases, and at the same time, sintering agent, ultrafine powder coating additives, ceramic powder composite material, powder composite adhesive, etc. are added. The particles are closely packed, the molding is fast, and the strength is high. The design strength can be reached in three days, so there is no large macroscopic error during use. Defects: high volume density, and its strength at room temperature can reach above. It is more than twice the service life of ordinary concrete and refractory castables. The raw materials mainly use ionic compounds and some artificially synthesized covalent compounds. According to the solid theory, ionic bonds and covalent bonds are strong bonds. The bonding system uses composite strengthening measures and special treatments to form a chemical bond, so its strength and stiffness are very high. , can effectively resist the high-speed impact force and shear stress of materials.
Due to the use of special acid- and alkali-resistant raw materials, the performance is stable and will not react with the medium. At the same time, the raw materials of wear-resistant ceramic coatings are mostly high-temperature synthetic materials, with good crystal development, complete structure, and are not affected by environmental factors. It is one of the best inert materials, so it can effectively resist the effects of environmental media and various chemical corrosion.
Wear resistance of wear-resistant ceramic coatings In order to illustrate the wear resistance of wear-resistant ceramic coatings, a comparative experiment was conducted.
Comparative materials wear-resistant ceramic coatings wear-resistant steel wear-resistant steel refractory castables and wear-resistant ceramic sheets.
Experimental conditions and process time: Emery velocity of the medium/distance from nozzle to sample block Angle of nozzle and sample block.
Conclusion The wear resistance of normal temperature wear-resistant ceramic coatings is twice that of steel and times that of refractory castables. As the use temperature increases, the wear resistance of wear-resistant ceramic coatings changes very little.
Scope of use
Where wear-resistant ceramic coatings are used in various industries
Serial number
Application in cement plants
Application in coal-fired power plants
Steel industry Applications
Applications in the petrochemical industry
Vertical mill air outlet to cyclone cylinder or dust collector air duct
Bucket wheel machine barrel
Ore raw coal transportation silo hopper
Cyclone separator in catalytic cracking unit
Vertical mill upper, middle and lower shell and bottom plate
Belt conveyor hopper
Trolley three-way bucket receiving hopper
Reactor
Vertical mill upper cone, lower cone hopper and feed chute
Raw coal hopper
Coking batching and mixing silo
Regenerator
< br/> Vertical mill powder concentrator casing
Coke silo
Sintering system vibrating screen trough and mineral processing hopper
Flue
Vertical mill sealed air duct< br/> Coal mill outlet pipe
Long-distance beneficiation silo hopper
Catalyst transport pipe
Raw meal combined powder separator air inlet pipe and cyclone shell
Medium speed grinding cylinder and separation baffle
Dust collector housing and pipes
Carbon monoxide waste heat boiler
All cyclone separator housings and air inlet and outlet ducts, including cyclone cylinder< br/> Coarse and fine powder cyclone separator shell cone and inlet and outlet pipes
Coal-fired boiler flue
Air duct from the cooling machine to the electric precipitator
Primary and secondary air Pipe
Coal-fired boiler delivery pipe
Electric precipitator housing and top
Sinter silo
Coarse and fine powder separator housing and air inlet and outlet ducts
Tertiary air duct and high temperature valve
High temperature fan casing
Powder discharge machine casing and inlet and outlet air duct
Cyclone outlet air duct and elbow
br/> Powder discharge machine casing and air duct
Sintering feed chute
Kiln head and kiln tail pulverized coal transportation wear-resistant straight pipe and elbow
Gas cone Body
Sintering bed dust collection system
High-temperature fan casing and air inlet and outlet duct
Circulating fluidized bed boiler combustion chamber, high-temperature cyclone separator
Blast furnace feed slide Pipe
Circulation fan casing and air inlet and outlet duct
Boiler flue
Blast furnace stone water quenching and furnace stone silo
Media grinding head Unloading pipe and raw coal silo storage hopper
Pulverized coal conveying pipe
Other parts with strong wear and erosion
Coal mill separator casing and air inlet and outlet duct
Dust collector Pipes and elbows
Coal mill high-temperature fan casing and air inlet and outlet ducts
Cinder coal transportation pipes
Cement mill powder separator casing inlet and outlet ducts
/> Inner casing of dry ash air separator
Cement mill dust collector air inlet duct and air inlet duct
Denitrification flue elbow, and outlet parts prone to wear
Wear-resistant ceramic coating