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Long flame coal washing system and method

A long-flame coal separation technology, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of low recovery rate of clean coal, low separation efficiency, high washing cost, etc., and achieve clean coal recovery High efficiency, high sorting efficiency, and remarkable economic benefits

Active Publication Date: 2018-11-06
湖南兴辉洗选药剂科技开发有限公司 +1
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Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a long-flame coal washing system and washing method, which solves the problems of low separation efficiency, low clean coal recovery rate and high washing cost in the existing long-flame coal separation process. question

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  • Long flame coal washing system and method

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Embodiment Construction

[0033] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

[0034] A specific embodiment of the present invention, such as figure 1 As shown, a long-flame coal washing system is disclosed, including a dry separation device, a pressurized heavy-medium separation device and a muddy separation device; raw coal enters the dry separation device, the pressurized One of dense medium separation device and mud separation device.

[0035] During implementation, the coarse-grained grade (particle size greater than 50mm) enters the dry separation device, the medium-grained grade (particle size is 3-50mm) enters the pressurized heavy medium separation device, an...

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Abstract

The invention relates to a long flame coal washing system and method, and belongs to the technical field of raw coal separation. The problems that in the prior art, a long flame coal separation technology is low in separation efficiency, low in washed coal recovery rate and high in washing cost are solved. The long flame coal washing system comprises a drying separation device, a pressurized densemedia separation device and an argillization separation device. Raw coal enters one of the drying separation device, the pressurized dense media separation device and the argillization separation device according to the different particle sizes. The long flame coal washing method comprises the steps of drying separation operation, pressurized dense media separation operation and argillization separation operation. The raw coal enters into one of the drying separation operation, the pressurized dense media separation operation and the argillization separation operation according to the different particle sizes. The long flame coal washing system and method can be used for providing the long flame coal washing method for coal mining enterprises.

Description

technical field [0001] The invention relates to raw coal separation, in particular to a long-flame coal washing system and washing method. Background technique [0002] my country is a large coal country, in which the long-flame coal resource content is high, accounting for about 13% of the proven coal reserves. In recent years, with the development of industrialization of coal mining in my country, the continuous increase of coal mining volume, the further increase of coal consumption demand and the gradual improvement of the market's quality requirements for coal products, long-flame coal resources have been developed and utilized in large quantities. [0003] Conventional long-flame coal separation process, such as: dry separation process, the separation accuracy of this process is low, it can only remove about 80% of the gangue in the raw coal, and the separation accuracy of the raw coal with a grain size of -6mm is extremely poor. Therefore, this part of long-flame coa...

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Application Information

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IPC IPC(8): B03B7/00B03B9/00
CPCB03B7/00B03B9/005
Inventor 肖友芬桂夏辉邢耀文李明
Owner 湖南兴辉洗选药剂科技开发有限公司
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