Raw coal washing system

A raw coal and coarse coal technology, applied in solid separation, wet separation, grain processing, etc., can solve the problems of difficult residue cleaning, low combustion efficiency, and large coal transportation volume, and reduce labor costs and transportation equipment costs , Reduce the waste of transportation capacity and improve the efficiency of coal combustion

Active Publication Date: 2014-06-11
南通市通州区麦畅纺织品有限公司
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AI Technical Summary

Problems solved by technology

When coal-fired enterprises use unwashed raw coal as fuel, the pollutants emitted will increase significantly compared with burning clean coal, and the combustion efficiency is very low. The ash content in raw coal is high, and it is difficult to clean up the residue after combustion. In addition, since most of my country's coal-producing areas are far away from economically developed areas with large coal consumption, the coal transportation volume is large and the transportation distance is long. The average coal transportation distance is about 600 kilometers. a lot of capacity

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Embodiment Construction

[0011] A raw coal washing system includes a circulating coal crushing device 1, the circulating coal crushing device 1 includes a separator and a raw coal crusher 17, the separator has a hollow disk-shaped shell 4, and the shell 4 includes two parallel The circular side walls of the two circular side walls are connected by an annular side wall. The two circular side walls of the housing 4 are inclined 30°-60° relative to the horizontal plane. The inner axis of the housing 4 is installed A turntable 6 is installed on the axis 5 and the central axis 5, and the turntable 6 can rotate around the central axis 5. The outer edge of the turntable 6 is provided with an isolation ring 7, and the isolation ring 7 separates the housing 4 into a disc-shaped cavity 8 in the middle and an annular ring around the periphery. Cavity 9, drive motor 10 is set in disc-shaped cavity 8, drive motor 10 is fixedly installed on the inner wall of housing 4, drive gear 11 is installed on the output shaft ...

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Abstract

The invention discloses a raw coal washing system. The raw coal washing system comprises circulating coal crushing equipment, wherein a vibrating drop guide is arranged below a discharging gate of the circulating coal crushing equipment; a belt conveyor is arranged between the vibrating drop guide and a raw material storage tank; the raw material storage tank is communicated with the raw coal inlet of a three-product dense medium cyclone through a screw conveyer; the suspension inlet of the three-product dense medium cyclone is communicated with a medium storage tank through a medium pump; the outlet of the three-product dense medium cyclone is communicated with medium drainage equipment and dehydration equipment; the medium drainage equipment is communicated with the medium storage tank through a medium recovery pump. The raw coal washing system has the advantages that the coal is continuously washed and is not needed to be manually transferred between the equipment, the labor force and transportation equipment cost of coal production enterprises are reduced, and the raw coal treatment time is shortened, so that the coal washing process is easily accepted by the coal production enterprises, the system is suitable for large-scale popularization and application in coal industry, the overall raw coal washing rate in the coal industry is improved, the environmental pollution degree is reduced, the fire coal efficiency is improved, and transport capacity waste is reduced.

Description

technical field [0001] The invention relates to a coal washing equipment, in particular to a raw coal washing system. Background technique [0002] Coal washing is an important process in the deep processing of coal. After the raw coal is washed, the impurity content carried by it is greatly reduced, and the pollutants and ash produced after combustion are greatly reduced, realizing the clean utilization of coal. However, due to the lack of connection between various equipment such as crushers and screening machines used in the current coal washing process, the raw coal needs to be manually transferred to the next process after crushing and screening. The existing coal washing operation is more cumbersome and continuous production cannot be formed, and the coal washing operation needs to consume a lot of labor costs and transportation equipment costs. Considering that the coal washing step is omitted, the raw coal is directly supplied to downstream industries. According t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00B02C23/10B02C23/14B03B7/00
Inventor 曲贞序
Owner 南通市通州区麦畅纺织品有限公司
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