Coarse coal slime sorting equipment and technology of coarse coal slime sorting equipment

Abstract

The invention relate to a sorting technology of coarse coal slime of a coal plant, in particular to coarse coal slime sorting equipment and a technology of the coarse coal slime sorting equipment. The coarse coal slime sorting equipment is characterized by comprising a TBS coal slime sorting machine which comprises a tank body, a feeding well, a turbulent flow plate, a density sensor, an actuator, a discharging valve and an overflow weir. Therefore, the coarse coal slime sorting equipment and the technology are reasonable in design and easy to achieve.

Description

(1) Technical field [0001] The invention relates to a coarse coal slime separation process in a coal preparation plant, in particular to a coarse coal slime separation device and a process thereof. (2) Background technology [0002] Coal is the main energy source in my country, and currently accounts for about 70% of primary energy in my country's energy structure. Coal's dominant position in my country's energy structure will not change for a long time to come. With the improvement of coal mining mechanization and automation, the content of coal slime in my country's coal is increasing, especially the 1-0.25mm particle size coarse particle separation technology has become a new challenge for the coal preparation industry. [0003] The main characteristics of coarse-grained coal slime are large content and poor selectivity. Conventional coarse coal slime separation process includes TBS separation, spiral separator separation, coal slime dense medium separation, etc. Among...

AI Technical Summary

Problems solved by technology

[0004] 1) The curved sieve is easy to block the sieve holes, which in turn leads to low feed concentration of the centrifuge, causing the centrifuge to run out of water

[0005] 2) The curved sieve cannot effectively remove the high-ash fine-grained coal slime in the TBS overflow clean coal, which pollutes the TBS coarse clean coal, resulting in high ash content in the clean coal, which cannot meet user requirements

[0006] 3) TBS uses the overflow water of the thickener as circulating water, and the overflow water of the thickener contains high-ash and fine-grained coal slime, which further pollutes the clean coal of TBS

Images