Wear-resistant ceramic coatings are obtained by Wuhan Dongzhen Technology Co., Ltd. by introducing German production technology and formulas, and jointly with well-known domestic universities and scientific research institutions for further research and development. It is mainly composed of wear-resistant aggregates such as brown corundum, silicon carbide and super It is composed of two phases of fine powder, 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 are no major macroscopic defects during use, the volume density is high, 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 medium.~The emery speed/distance from the nozzle to the sample block, the angle between the nozzle and the sample block.
Conclusion The wear resistance of normal temperature wear-resistant ceramic coatings is twice that of steel, three times that of steel, and three 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 tube 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 (silo)
Coking batching mixing bin
Regenerator
Vertical mill powder separator Shell
Coke silo
Sintering system vibrating screen trough and mineral processing hopper
Flue
Vertical mill sealed air duct
Coal mill outlet pipe
Long-distance mineral processing silos and hoppers
Catalyst conveying pipelines
Raw meal combination powder concentrator air inlet duct and cyclone shell
Medium speed grinding cylinder and separation baffle
Dust removal Casing and pipes
Carbon monoxide waste heat boiler
All cyclone separator shells and inlet and outlet ducts, including cyclone barrel
Coarse and fine powder cyclone separator shells, cone buckets and inlet and outlet pipes< br/> Coal-fired boiler flue
Air duct from the cooling machine to the electric precipitator
Primary and secondary air ducts
Coal-fired boiler delivery pipe
Electric precipitator casing and top
Sinter silo
Coarse and fine powder separator housing and air inlet and outlet duct
Tertiary air duct and high temperature valve
High temperature fan casing
Powder discharge machine casing and air inlet and outlet duct
Cyclone outlet air duct and elbow
Powder discharge machine casing and air duct
Sintering feeding chute
Kiln head , Wear-resistant straight pipes and elbows for conveying pulverized coal at the end of the kiln
Gas cone
Sintering bed dust collection system
High-temperature fan casing and air inlet and outlet ducts
Circulating fluidization Bed boiler combustion chamber, high temperature cyclone separator
Blast furnace feed chute
Circulation fan casing and air inlet and outlet duct
Boiler flue
Blast furnace stone water quenching and furnace stone materials Warehouse
Media grinding head discharge pipe and raw coal silo storage hopper
Pulverized coal transportation pipeline
Other parts with strong wear and strong erosion
Coal mill pulverizer casing and inlet and outlet air ducts
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, air inlet and outlet ducts
/> Inner casing of dry ash air separator
Air inlet duct and air inlet duct of cement mill dust collector
Elbow of denitrification flue, and parts prone to wear at the outlet
Tortoiseshell mesh wear-resistant ceramic coating