Weldable Ceramic Wear Bricks, Special Shaped Wear Tiles
We are based on the manufacturing industry and are engaged in producing and selling Rubber Ceramic Composite Linings, Zirconia Balls, Sintered Alumina Ceramic Hole Ball in the spirit of being proactive. Since we started our business, we have inherited the spirit of not being afraid of reforms and unremittingly opened up new markets, which has made substantial progress. With the guiding ideology of "win-win with partners", our company continues to share quality products, professional services, and profit points with partners. We normally welcome new and old buyers offers us with beneficial tips and proposals for cooperation, let us mature and produce alongside one another, also to lead to our neighborhood and employees!
Product Introduction
The coal-fired power plant's pulverizing, ash, dedusting and coal conveying system, the equipment operation is constantly affected by the friction, corrosion, collision, impact and other factors of the medium, the system is very easy to leak, resulting in environmental pollution. It is where the power plants improve safety and civilized production and strive for difficulties. For this reason, each power plant has adopted different methods for leakage control, among which the Alumina Ceramic Special-shaped Liner is an ideal leakage control material, and its wear resistance, practicability and economy are superior to other wear-resistant materials.
Advantage
The alumina ceramic special-shaped liner is a special corundum ceramic, which is made of aluminum oxide as the main raw material, rare metal oxide as the flux and sintered at 1700 ℃, and then combined with special rubber and high-strength organic or inorganic adhesive respectively. It has the following main performance and characteristics:
(1) The hardness is large, and the Rockwell hardness is 82-88.
(2) It has good wear resistance and long service life. Its wear resistance is 266 times of manganese steel and 171.5 times of high chromium cast iron.
(3) It has a wide range of usability, such as the adhesive type lining plate suitable for the direct transportation of materials in the low temperature environment; the impact type lining plate suitable for the impact of large materials; the direct adhesive type lining plate suitable for the wind transportation of powder foam in the high temperature environment; the special-shaped fast tubular composite type lining; and the adhesive type ceramic fan blade suitable for the dynamic operation and high-speed operation.
Chemical Composition and Physical Properties
| Series | BM92 | BMG95 | BME95 |
| AL2O3(%) | 92±0.5 | 95±0.5 | 95±0.5 |
| Bending strength (Mpa) | ≥220 | ≥250 | ≥300 |
| Compressive strength (Mpa) | ≥1050 | ≥1300 | ≥1600 |
| Fracture toughness (MPam1/2) | ≥3.70 | ≥3.80 | ≥4.0 |
|
Rockwell hardness (HRA) |
≥82 | ≥85 | ≥88 |
| Wear volume(cm3) | ≤0.25 | ≤0.2 | ≤0.15 |
| Bulk density(g/cm3) | ≥3.6 | ≥3.65 | ≥3.7 |
Application
(1) Application in pulverizing system
Most of the wear of coal-fired power plant pulverizing system is mainly coal powder collision, friction and impact. The high-speed pulverized coal air flow is particularly worn on the pulverizing system equipment, especially on the outlet pipeline of the pulverizer, the elbow of the primary air pipeline and the inlet and outlet pipeline of the coarse and fine powder separator. The methods to control the pulverizing system are as follows: apply the wear-resistant adhesive series, its wear-resistant performance is superior to that of steel plate, and its strength and adhesion are better; but its disadvantage is that the construction is difficult and the cost is high. The wear resistance of cast stone is stronger than that of ordinary steel plate, but its biggest disadvantage is its brittleness and weight. It is not only limited by the load safety system of the equipment system, but also easily broken in the installation process. Because of the thick and large volume of the cast stone slab, the flow section of the equipment is reduced, the flow rate is increased, and the wear degree is also increased. Its service life is also difficult to compare with the wear-resistant ceramic lining plate. The application of wear-resistant ceramic lining plate, the effect of which is ideal, has been well received by users. The pulverizing system is not only wear-resistant and does not fall off, but also has no effect on the system. Its biggest advantage is simple construction and low cost, showing its good prospects for development.
(2) Application in ash system
In the power plant with hydraulic ash removal and slag discharge system, the inlet and outlet pipe sections of ash pump, ash ditch nozzle, etc. are the most easily worn parts. According to the site working conditions, it is more appropriate to paste adhesive ceramics. According to the use of some power plants, the effect of these parts is very good. The maintenance personnel no longer frequently block the leakage and replace the equipment, and the on-site sanitation has greatly improved.
(3) Application in coal handling system
The abrasion of coal handling system equipment is mainly abrasion and impact. The most easily worn parts are coal chute, tee, baffle, etc. generally, the anti-wear methods adopted by the power plant are: the application of lined manganese steel plate is not ideal, because the steel plate is not wear-resistant, the service cycle is short (generally about 6 months), and it is easy to stick coal and block; it brings maintenance workload to the maintenance personnel. It is not easy to stick coal to block when using UHMWPE board, but its wear resistance and impact resistance are not as good as that of steel plate, especially between lining board and cylinder wall, it is easy to squeeze raw coal from the joint and make lining board bulge and fall off. Since the UHMWPE board was used in some coal plants in 1997, the lining board has fallen off several times, which causes the chain of coal feeder to get stuck or even cause the chain to bend; it brings unnecessary maintenance workload to the maintenance personnel, and at the same time, it has a serious impact on safety production. The alumina ceramic special-shaped liner, has greatly improved the wear resistance, impact resistance and the smoothness of the inner wall.Through the use of some power plants, it is an ideal method to prevent wear and control leakage.
Picture
Other Special-shaped Liner
The production process
In order to protect the global environment and improve the living standard of human beings, we are actively working on the development and production of energy-saving and environmental protection Weldable Ceramic Wear Bricks, Special Shaped Wear Tiles. Our sales staff will try their best to supply you with the best services. It is our unwavering goal to become an international company with public trust, greater responsibility, leading technology, and sustainable development.
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