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Separation system and method for coking flat coal slime

A sorting system and sorting technology, applied in chemical instruments and methods, flotation, solid separation, etc., can solve the problem of waste of clay mineral resources such as kaolin in the recovery of low-ash clean coal technology, and increase the economic benefits of enterprises and society. Benefit, assurance requirements, effect of reducing pollution levels

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-mentioned analysis, the present invention aims to provide a full-component separation system and separation method of coke fat coal slime, which solves the deficiencies of the prior art in recovering low-ash clean coal technology from medium coal and is difficult for clay such as kaolin. The problem of waste of mineral resources

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  • Separation system and method for coking flat coal slime

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Embodiment Construction

[0048] 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.

[0049] The implementation of the present invention is further described below:

[0050] A kind of coal slime sorting method of coke fat coal of the present invention comprises slurry adjustment operation A, clean coal sorting operation B, middling coal sorting operation C and kaolin sorting operation D, such as figure 1 shown.

[0051] The specific implementation of this method is as follows:

[0052] a. After adding collector and foaming agent into the floating coal slime, feed it into the pulping machine, and feed it into the flotation machine by the pump to obtain coarse clean coal and co...

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Abstract

The invention relates to a whole-component separation system and method for coking flat coal slime, and belongs to the technical field of coal slime separation. The defect of a technology for recycling low ash fine coal from middling coal in the prior art is overcome, and the problem of waste of clay mineral resources such as kaolin in the prior art is solved. The whole-component separation systemfor the coking flat coal slime comprises a middling coal separation operation device which comprises rod mills, a second-section grading cyclone, flotation columns and a first slurry mixing machine.According to the separation method for the coking flat coal slime, middling coal separation operation comprises the following steps that bottom flow coarse particles of a first-section grading cycloneare screened, first-section rod milling, second-section rod milling, slurry mixing, coarse separation and fine separation are conducted to obtain a light product and heavy product flotation waste coal, and the light product serves as a middling coal product to be discharged to complete coking flat coal slime middling coal recovery. According to the whole-component separation system and method forthe coking flat coal slime, whole-component separation of the coking flat coal slime can be achieved.

Description

technical field [0001] The invention relates to coal slime sorting, in particular to a coke fat coal slime full-component sorting system and a sorting method. Background technique [0002] Coking fat coal is a scarce coal type in my country and a national strategic material, but its reserves account for less than one-third of the total reserves of coal resources. Because coke fat coal generally has the characteristics of poor coal quality and high debris content, 20% to 30% of medium coal is produced in the sorting process. With the deterioration of resource conditions, coke fat coal sorting shows a worsening trend. Its outstanding performance is that coke fat coal has a large content of intergrowth, and the inorganic minerals and organic coal rock components are closely intertwined, so it is difficult to sort. However, the coal ash content in coke fat coal is generally about 35%, and it contains a large amount of clean coal; Coke fat coal contains a large amount of clay mi...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B1/00B03D1/00B03D103/08
CPCB03B1/00B03B7/00B03D1/00B03D2203/08
Inventor 肖友芬桂夏辉邢耀文杨自立
Owner 湖南兴辉洗选药剂科技开发有限公司
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