How does coal rank?Level, price
. Lean coal can also be used for power generation, power plant boilers and civilian fuel etc.. The typical lean coal produced in Shanxi Province, Xishan Coal and electricity company. Lean: volatile and moderate adhesion, mainly used for coking. In the coking process may produce some of the glial, glial layer thickness of 6 - 10mm. Produced by coal coking coke, high mechanical strength and abrasion resistance is relatively poor. In addition to the part of high ash and high sulfur coal, coal and other coal blending coking often. Coking coal: strong coking process, medium volatile (16% - 28%), is mainly used for domestic coking coal coking coal. Coke made from coking coal has a very good nature, coking coal is mainly produced in Shanxi and Hebei province. Fat: medium or high volatile (25% - 35%) and a very strong bond, mainly used for Coking (some high ash high sulfur coal used for power generation).
The use of coal, and the other with the use of high volatile coal is also a good way. Lean coal: low volatile, low bond strength, can be used alone to coking. As with other suitable for coking coal blending, lean coal incorporation will make block increase the degree of coke products
Anthracite: high fixed carbon content, high fire point (about 360 to 420 DEG C), high true relative density (1.35 ~ 1.90), low volatile yield and low hydrogen content. In addition to power generation, anthracite is mainly used as raw material for gasification (fixed bed gasifier) for the production of synthetic ammonia, fuel and briquette
. Some low ash, low sulfur and high HGI anthracite is also used as raw material for blast furnace injection. Coal: coal soot level top coal, it is characterized by a higher ignition temperature (350 - 360 DEG C), high calorific value, weak bond or not. Coal is mainly used for power generation and power plant boiler fuel.
