The process of coking coal blending

Reasonable choice of process, for the expansion of coking coal resources and coke quality is of great significance. The difference between the various processes, mainly in the crushing of coal processing, and coal reception and storage process is basically the same. According to different crushing processing methods, coal blending process is divided into the following two.
(1) With the first matching followed by crushing process
This process is to make the composition of coking coal in accordance with the provisions of the proportion of matching first, and then crushed. The process is as follows: from the field to a variety of grades of coal, coal unloading equipment unloading to the coal storage site of the single storage site. When coal is used, coal is taken from the coal storage site to the coal preparation section. First in accordance with the coal to the coal pool, and then by the coal equipment will be different grades of coal with a certain proportion of together. And then with a good amount of coal sent to the crushing section, the mill will be crushed to a certain fineness of coal, and finally by the belt machine sent to the coal tower.
This process is simple, less equipment, compact layout, easy operation, no additional mixing equipment after crushing, but the poor adhesion of coal and coal quality is not uniform, it is not appropriate to use this process. However, due to its obvious superiority, the kind of process is widely used in China's vast number of coking plants.
(2) First crushed followed by matching
This process is to make the composition of coking coal of the single coal according to its nature for different fineness of the crushed, and then according to the provisions of the proportion of the final mix.
This process of coal smash more uniform, to avoid the large particles and sticky coal cohesion, but the process is more complex, more equipment, investment, so the domestic coking plant rarely used.