The cross bar grate cooler lining is a key component of the grate cooler. The grate cooler is mainly used for cooling cement clinker. The lining is installed inside the grate cooler, directly in contact with the high-temperature clinker, and is used to support the clinker and allow cooling air to pass through. The cross bar grate cooler lining can protect the main structure of the grate cooler to prevent it from being eroded and worn by the high-temperature clinker. The grate plate also needs to have good wear resistance. At the same time, the good performance of the lining can ensure that the clinker is evenly distributed and effectively cooled on the grate cooler, thereby improving the cooling efficiency of the grate cooler.
Lining material selection
The cross bar grate cooler grate plate will be made of wear-resistant materials such as high chromium cast iron and nickel hard cast iron. These materials have high hardness and wear resistance and can withstand the wear and impact of clinker. The high chromium cast iron lining is made of high temperature resistant materials, has high hardness and wear resistance, and can withstand the friction of clinker during movement on the grate cooler. It has a high chromium content and can form a dense chromium oxide protective film under high temperature environment, which effectively resists high temperature oxidation and chemical corrosion. Some linings also adopt special ceramic composite structures. Ceramic materials have excellent high temperature resistance and corrosion resistance. After combining with metal matrix, they can give play to the wear resistance and high temperature resistance of ceramics and the toughness of metals to improve the comprehensive performance of linings. The service life of ceramic composite linings is usually longer than that of ordinary material linings, which may reach 4-5 years. However, the cost of ceramic composite linings is relatively high, and if they are subjected to large external impact during installation and use, problems such as ceramic layer shedding may occur, affecting the service life.
Lining structure design
Zili New Materials, as a professional wear-resistant lining manufacturer, provides customers with reasonable selection suggestions in terms of materials. When designing the shape of the cross bar grate cooler lining, the fluidity and cooling effect of the clinker are usually taken into account. There may be some special patterns or raised structures on its surface, which help to increase the friction between the clinker and the lining to prevent the clinker from sliding too fast and causing uneven cooling. The connection method between the linings is also very important. They are generally fixed with bolts and other fasteners, and there will be a sealing design at the connection to prevent clinker particles from entering the connection gap, avoiding damage to the lining due to clinker accumulation or affecting the normal operation of the grate cooler.
