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

A technology of coarse coal slime and coal slime, which is applied in the direction of solid separation, wet separation, chemical instruments and methods, etc., can solve the problems of centrifuge running water, high ash content of clean coal, and easy blockage of screen holes, etc., and achieves simple process, The recovery rate of clean coal is high and the effect of improving the quality of clean coal products

Active Publication Date: 2014-01-08
COAL IND JINAN DESIGN & RES
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  • Abstract
  • Description
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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

Method used

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

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Embodiment Construction

[0025] Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment is: a) feed the selected coal slime 1 and clean water 12 into the TBS coal slime separator A for sorting. It consists of actuator, discharge valve and overflow weir.

[0026] b) The tailings 2 separated by the TBS slime separator A enter the tailings system, and the TBS overflow 3 automatically flows to the frequency conversion fine particle separator B for further separation.

[0027] c) Clean water 12 is laid in 3 lanes along the length direction of the frequency conversion fine particle separator B, each of which is sprayed against the coal flow along the full width direction of the frequency conversion fine particle separator B, so that the coal seam is continuously turned over, and the high ash fine mud enters through the screen The sieved water 5 flows to the coal slime thickener D by itself. Frequency conversion fine particle separator B sieve 4 Enter the slime cent...

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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...

Claims

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Application Information

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IPC IPC(8): B03B7/00
Inventor 刘宏张双燕石绍辉李鹏举张汉峰余振华吕洪强董玉蛟王市委
Owner COAL IND JINAN DESIGN & RES
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