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| The grinding roller 29MG63.11.09 of the coal mill is one of the core components of the coal mill. Its main function is to grind the raw coal into a fineness suitable for combustion to ensure the efficient use of fuel in the power plant. The grinding roller crushes the coal by crushing and grinding. When the coal mill is working, the raw coal rotates with the grinding bowl, driving the grinding roller to rotate around the grinding roller axis. The pressure between the grinding roller and the grinding disc is provided by the hydraulic system and can be adjusted according to the type of coal. The design of the grinding roller 29MG63.11.09 usually includes a larger diameter to reduce rolling resistance, thereby improving the output characteristics and reducing power consumption. The grinding roller has a certain inclination on the grinding disc (usually 12 to 15). This design enables the grinding roller to adapt well to the changes in the thickness of the material layer, the particle size of the feed material and the wear of the grinding parts during operation. In addition, the grinding roller matches the end face shape of the grinding disc, which ensures a good grinding effect and ensures the later output of the coal mill. The wear resistance of the grinding roller has an important influence on its service life and coal grinding efficiency. Traditional grinding roller materials include integral casting of wear-resistant alloys or surfacing of wear-resistant alloys, but these materials have problems such as high cost and brittleness. In recent years, metal-ceramic composite materials have been used to manufacture grinding rollers, which have higher wear resistance and service life. For example, the service life of grinding rollers made of metal-ceramic composite materials is more than twice that of traditional high-chromium alloy roller sleeves. |
| Technical parameters of coal mill Heat generation: 1631MJ/kg Surface moisture:< 18% Grindability system: HGI=4080 Combustible volatile matter: 1640% Raw coal particles: 040mm Fineness of coal powder: R90=240% |
| Product Features: 1. Reliability: Adopting high-quality bearing support and replaceable stationary wear rings. 2. Efficiency: The dual suction design improves suction efficiency. 3. Flexibility: Suitable for various industrial and municipal fields. 4. Stability: Maintain a high degree of sealing during operation, without leakage. 5. Maintainability: replaceable stationary wear rings and well-designed lubrication system. |
| Application: Thermal power plants: Coal mills are used to grind coal into powder for better combustion and power generation. Steel plant: Coal mills are used for the preparation of coal powder, helping to improve combustion efficiency. Cement plant: Coal mills are used for the preparation of coal powder to ensure the smooth progress of cement production. In the field of coal chemical industry, medium speed coal mills can be used in coal to oil, coal to fertilizer, coal to natural gas and other process flows to provide qualified coal powder. |
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