Integrated device for hydraulic classification and sorting of coarse slime as well as classification and sorting system

A technology of hydraulic classification and coarse coal slime, which is applied in the direction of solid separation, wet separation, chemical instruments and methods, etc., can solve the problems of high construction investment and operating costs of coal preparation plants, long coal preparation process, poor separation accuracy, etc. problems, to achieve the effect of reducing construction investment and operating costs, high integration, and low cost

Inactive Publication Date: 2009-08-12
煤炭科学研究总院唐山研究院
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Problems solved by technology

There are problems such as long coal preparation process, poor separation accuracy

Method used

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  • Integrated device for hydraulic classification and sorting of coarse slime as well as classification and sorting system
  • Integrated device for hydraulic classification and sorting of coarse slime as well as classification and sorting system
  • Integrated device for hydraulic classification and sorting of coarse slime as well as classification and sorting system

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[0025] figure 1 , figure 2 with image 3 It is a schematic structural diagram of the integrated device for hydraulic classification and separation of coarse coal slime of the present invention. This device integrates the functions of the hydraulic classification equipment for coal slime with the functions of the upward flow separation equipment for coarse slime, and improves the integration of equipment. Shorten the coal preparation process.

[0026] The integrated device for hydraulic classification and separation of coarse coal slurry of the present invention includes a hydraulic classification cyclone 1 and an upflow separator 2, which are connected by a connecting barrel 3, and the underflow port 6 of the hydraulic classification cyclone is connected to the connecting barrel 3. The body of the hydraulic classification cyclone 1 can be arranged inside or outside the connecting barrel 3, figure 1 It is shown that the hydraulic classification cyclone 1 is arranged inside the ...

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Abstract

A coarse coal slime hydraulic grading and sorting integration device and a sorting system using the device belong to the technical field of cleaning unit and are used for shortening technological processes of coal separation and improving the sorting accuracy of the coal slime. The grading and sorting integration device comprises a hydraulic grading swirler, an upwelling current sorter and a connecting barrel, which are connected in sequence. A coarse coal slime grading and sorting system is composed of the grading and sorting integration device, a hydraulic grading swirler barrel, a hydraulic grading swirler pump, an arc-shaped sieve, a coal slime centrifuge, a gangue dewatering sieve, a cleaned coal belt conveyer, a gangue belt conveyer and a main pipeline. The hydraulic grading swirler barrel is connected with the feeding hole of the hydraulic grading swirler, the overflow port of the hydraulic grading swirler is connected with the pipeline of a floatation system. The overflow port of the upwelling current sorter, the arc-shaped sieve, the coal slime centrifuge and the coal slime belt conveyer are connected in sequence. The overflow port at the bottom of the upwelling sorter is connected with the gangue dewatering sieve, the gangue belt conveyer and a thickener in sequence.

Description

technical field [0001] The invention relates to a device and a system for grading and sorting coal slime, and belongs to the technical field of coal preparation equipment. Background technique [0002] Coal slime classification and separation are two important links in coal preparation production. Classification is to divide the mixed materials with different particle sizes into different particle size products according to a certain particle size (usually 0.5-0.3mm), so as to meet the requirements of coal preparation process or coal preparation method. Generally speaking, the coal slime larger than this particle size is called coarse coal slime, and the gravity separation method should be adopted, and the separation basis is the density difference of materials; the coal slime smaller than this particle size is called fine coal slime, and flotation should be used for separation. The basis for selection is the difference in the surface properties of the material. The equipm...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B5/62B07B1/00
Inventor 李泽普黄亚飞徐春江杨俊利程宏志刘万超李佰云孙旖
Owner 煤炭科学研究总院唐山研究院
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