Particle characteristics Pulverized coal is composed of particles of different sizes and irregular shapes. Generally, the diameter of pulverized coal particles ranges from 0 to 1000um, and most of them are particles of 20 to 50um; The bulk density of pulverized coal is about (0.45—0.5) t/m3, and after a certain period of storage, the bulk density is (0.8—0.9) t/m3; Large surface area, the surface can absorb a lot of air, making it fluid. This feature makes the pulverized coal easy to transport by air, but the disadvantage is that it is easy to form the self-flow of pulverized coal, and it is easy to leak powder when the equipment is not tight.
Coal processing and production process
The finished pulverized coal material produced by our company’s equipment has uniform particle shape and particle size. Generally, the diameter of pulverized coal particles ranges from 0 to 1000um, and most of the particles are 20 to 50um. At the same time, the equipment has high output and low energy consumption. Ideal equipment.
1.In mineral processing, the bulk material is crushed by the crusher, which is the primary crusher.
2.The material after primary crushing is transferred to secondary crushing by impact crusher or cone crusher.
3.After the secondary crushed materials, the materials that meet the requirements are transferred to the pulverizer for grinding.Unqualified materials have a belt conveyor to go through the primary and secondary crushing process, until they meet the requirements, then a pulverizer is used for grinding.
4.The finished materials produced at the end shall be stored and kept in a suitable place.
Coal Grinding Mill
Particle characteristics Pulverized coal is composed of particles of different sizes and irregular shapes. Generally, the diameter of pulverized coal particles ranges from 0 to 1000um, and most of them are particles of 20 to 50um; the density of pulverized coal is relatively small, about (0.45 -0.5) t/m3, after storage for a certain period of time, the bulk density is (0.8-0.9) t/m3; the pulverized coal grinding equipment usually uses a vertical coal grinding mill or a medium-speed grinding mill .
Investment prospects
In the area between the Daxing’anling Mountains in northern China – Taihang Mountains and Helan Mountains, the geographical scope includes all or most of the six provinces and regions of Inner Mongolia, Shanxi, Shaanxi, Ningxia, Gansu and Henan with coal resources of more than 100 billion tons. It is China’s coal resources. The concentrated distribution area, its resources account for about 50% of the national coal resources, accounting for more than 55% of the coal resources in northern China. In southern China, coal resources are mainly concentrated in Guizhou, Yunnan, and Sichuan provinces. The sum of coal resources in these three provinces is 352.574 billion tons, accounting for 91.47% of the coal resources in southern China; the proven reserves also account for the proven reserves in southern China. More than 90% of the reserved resources.
The main purpose of gypsum
Pulverized coal is composed of particles of different sizes and irregular shapes. Generally, the diameter of pulverized coal particles ranges from 0 to 1000um, and most of them are particles of 20 to 50um; Deflagration, the ignition point is between 300℃～500℃, and the lower explosion limit concentration is 34g/m～47g/m (average particle size of dust: 5μm～10μm). Ignition temperature of dust accumulated on high temperature surface (5mm thickness): 225℃～285℃, and ignition temperature of cloud dust is 580℃～610℃.
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