Coal slime has many uses after drying, mainly including the following aspects:
1. Energy utilization:
Power plant boiler combustion: Dried coal slime can be used as fuel for boiler combustion in power plants, reducing coal consumption and reducing the cost of coal storage and transportation.
Cogeneration: In the field of cogeneration, dried coal slime can also be used as an important fuel source to improve energy efficiency.
2. Building materials:
Coal slime bricks: Coal slime can be made into coal slime bricks after drying. This is a new type of environmentally friendly building material with a simple manufacturing process that can effectively utilize coal slime resources.
Admixtures: Minerals such as silicates and aluminates in coal slime make it an admixture for building materials, used to prepare coal slime concrete, etc.
3. Chemical raw materials:
Pyrolysis and gasification: Coal slime is rich in organic matter. After pyrolysis and gasification, it can be used to prepare chemical raw materials such as petroleum substitutes, fertilizers, synthetic resins, and synthetic fibers.
Organic fertilizer: The organic matter in coal slime can also be separated, purified and processed to prepare organic fertilizer for agricultural production.
4. Metallurgical industry:
Coke, coal gas: Coal slime has reducibility and high calorific value. Through pyrolysis and reduction treatment, it can produce metallurgical raw materials such as coke and coal gas.
5. Environmental protection industry:
Soil conditioner: Coal slime can be used as a soil conditioner after treatment to improve soil fertility.
Wastewater treatment: Its property of adsorbing pollutants allows it to be used in wastewater treatment, reduce the content of harmful substances in wastewater, purify water bodies and improve water quality.
Coal slime dryer is mainly composed of heat source, dispersing device, belt feeder, rotary drum, belt discharging machine, induced draft fan, discharger and power distribution cabinet. It is a kind of equipment specially used for drying materials with high water content, fine particle size and high viscosity such as coal slime. It is not only widely used in coal industry, but also in building materials, mining, clay, sand, limestone, chemical industry, metallurgy, electric power and other industries.
