Deep screening and crushing process of raw coal system

A technology of deep screening and raw coal, applied in grain processing and other directions, can solve the problems of large crushing particle size, poor raw coal lifting capacity, low screening efficiency, etc., and achieve the effect of reducing raw coal volume, processing cost and simple structure

Inactive Publication Date: 2021-06-01
黑龙江龙煤双鸭山矿业有限责任公司
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a raw coal system deep screening and crushing process, which effectively solves the problems of low screening efficiency, poor lifting capacity of raw coal, and excessively large crushing granularity.

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  • Deep screening and crushing process of raw coal system

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Embodiment approach

[0022] refer to figure 1 , the present invention specifically adopts the following embodiments: including raw coal, a screening system and a crushing system, the raw coal is connected to the screening system through a lifting device, the screening system is connected to the crushing system through a large-inclination belt conveyor, and the number of large-inclination belt conveyors At least four, the screening system includes a double-layer relaxation screen, the crushing system includes a double-toothed roller crusher and a cone crusher, and the number of the double-toothed roller crusher and the cone crusher is at least two and set side by side. The belt angle of the high-inclination belt conveyor is 82.7°, the width is 1.5m, and the transport capacity is greater than 350t. The aperture diameters of the double-layer sieves of the relaxation sieve are respectively greater than 80mm and 40-80mm.

[0023] Proceed as follows:

[0024] 1) The raw coal mined in the mine is tran...

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Abstract

The invention relates to a deep screening and crushing process of a raw coal system, and relates to the technical field of coal mining equipment. Raw coal, a screening system and a crushing system are involved in the deep screening and crushing process, the raw coal is connected with the screening system through lifting equipment, the screening system is connected with the crushing system through a large-dip-angle belt conveyor, the screening system comprises a double-layer flip-flow screen. and the crushing system comprises a double-geared roller crusher and a cone crusher. The deep screening and crushing process of the raw coal system is transformed by means of a raw coal deep screening and crushing system, the production process can be perfected, the raw coal transportation capacity is improved, the adopted cone crusher can flexibly adjust the discharging granularity, and the problem of large slime water treatment pressure caused by excessive crushing is solved; and the washed raw coal is deeply screened and crushed, and the reasonable washing granularity can be determined according to the property of the washed raw coal in production practice, so that the clean coal yield is further improved, and the economic benefit is improved.

Description

Technical field: [0001] The invention relates to the technical field of coal mine equipment, in particular to a deep screening and crushing process of a raw coal system. Background technique: [0002] The existing coal preparation plant is a coking coal preparation plant. The coal preparation plant mainly produces clean coking coal. At the same time, it also produces steam coal when the market needs high-quality steam coal. In the production of coal preparation plants, there are currently problems such as low screening efficiency of the raw coal system, insufficient raw coal lifting capacity, and excessively large crushing particle size of the double-toothed roller crusher, which seriously restricts the production efficiency of coal preparation. Invention content: [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a raw coal system deep screening and crushing process, which effectively solves the probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00B02C23/08
CPCB02C21/00B02C23/08
Inventor 柳海军方宝生叶崇虎方东华张国良张永坤陈春柱
Owner 黑龙江龙煤双鸭山矿业有限责任公司
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