Coal is a non-renewable resource, known as "black gold". It is mostly used to provide heat and is widely used in metallurgy, chemical, cement, electric power, heating, heating, boilers, and other industries. In the process of use, coal is usually processed into pulverized coal to burn more fully, so when choosing grinding equipment, which equipment is better?
At present, the commonly used coal mills include coal vertical mills, coal ball mills, Raymond mills, and ultrafine vertical mills. These mills have their own advantages, but vertical mills are the first choice of many customers. Because the coal vertical mill is more in line with the technological requirements in the coal grinding process.
1. Because of the different textures of coal and the different boilers used during combustion, there are certain differences in the particle size requirements of the coal, and the fineness of the grinding equipment is required to be adjustable.
2. Coal is generally not very dry material, and usually contains more than 15% moisture. Therefore, the coal grinding equipment must be able to adapt to high-moisture materials and the material can be dried while grinding, without a separate dryer.
3. Coal contains flammable volatile components, and the pulverized coal itself is flammable, so the grinding equipment must have flame-retardant and explosion-proof measures.
4. Coal contains hard impurities, and the equipment is required to be able to adapt to hard-to-grind impurities during the grinding process.
Xinxiang Great Wall Machinery has more than 60 years of experience in the production of the large-scale kiln and mill equipment. The vertical coal mill produced by CHAENG integrates crushing, drying, grinding, powder selection and conveying. It does not require separate drying equipment when grinding; It adopts a new type of high-efficiency cage shaped-rotor powder concentrator. The powder classifier has high powder selection efficiency and large room for adjustment. The fineness of the powder can reach 0.08 mm and the sieve residue is below 3%. The produced pulverized coal has an efficient gradation and excellent combustion performance. The upper shell of the coal vertical mill is equipped with an explosion-proof valve to prevent the coal powder from exploding in the mill and to ensure the safe use of the equipment; Adopts ZG30mn as grinding roller casting material, with high hardness, anti-cracking, and good wear resistance, is more suitable for the difficult grinding of coal grinding Impurities.

Figure: Powder Separator Rotor

Figure: Grinding Roller

If you need pulverized coal processing equipment or have questions about vertical mills, please consult online. There will be professionals who will select equipment and plan design for you according to your grinding materials and production capacity. Look forward to your consultation!