Activated carbon is widely used in all aspects of environmental protection, such as sewage treatment, wastewater purification, flue gas purification and so on. In the north of China, 200 mesh coal is the main raw material for extracting activated carbon, what is its production process and what are the 200 mesh coal pulverization milling equipment?
From the appearance, coal activated carbon can be divided into three types: cylindrical, granular and powder. The manufacturing process is similar for different products. Now, the manufacturing process of 200-mesh coal activated carbon is introduced as follows.
The first thing is the material. The natural source of coal-based activated carbon is coal, but the quality of coal produced in various regions varies greatly, and the current production of activated carbon is mostly based on Shanxi, Ningxia, Xinjiang and other regions.
The second step in the preparation process of 200 mesh coal-based activated carbon is the carbonization and activation process. This step is a crucial step. Carbonization, as the name suggests, is a heat treatment, usually using a fluidized furnace, rotary furnace, or vertical carbonization furnace. Activation is divided into physical activation and chemical activation, and the first type of activation is usually used. That is, water vapor, flue gas, carbon dioxide, air, etc. are used as activation gases, which are contacted with the carbonized material between 800-1000℃, so as to make contact with the carbonized material, thus realizing the activation. The main production equipments are Sleip Furnace, Skeet Furnace, Harrow Furnace, Reflow Furnace and so on.
The last process in the preparation of 200 mesh coal-based activated carbon is the finished product processing process. That is, according to different specifications to process, 200 mesh coal-based activated carbon is a kind of powdered activated carbon, commonly used equipment are crusher and mill. 200 mesh coal powder grinding equipment is of great significance to the production of activated carbon. Recommended here is MTW intelligent European mill, which is the upgraded version of Raymond mill, with 30% higher output, smooth operation, negative pressure system, less dust and higher safety.
In addition, for some specific use of activated carbon, it is necessary to add a cleaning process, such as acid washing, alkaline washing, water washing and so on. There are also some special specifications of activated carbon, such as briquette activated carbon and column activated carbon, which need to be pre-treated before carbonization and activation by crushing the raw coal and then kneading and extruding it into shape.
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