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Heavy medium vortrap, coal separation system and method therefor

A heavy medium cyclone, the technology of the cyclone is applied in the direction of the cyclone device, the device in which the axial direction of the cyclone can be reversed, chemical instruments and methods, etc., and can solve the automatic pressure and flow rate of the heavy medium suspension liquid supply. Adjustment, pump life and reliability are not satisfactory, manual adjustment is unreliable and untimely, etc., to achieve the effect of reducing system cost, easy selection, and low power

Inactive Publication Date: 2003-05-21
天地科技股份有限公司唐山分公司
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Problems solved by technology

The former wastes electricity, while the latter increases the investment of the frequency converter, and the manual adjustment is unreliable and untimely; especially when the power of the main pump exceeds 100KW, the frequency converter is quite expensive; it is necessary to supply liquid to a large cyclone above 1400mm. The current single-pump technology is immature, the life and reliability of the pump are not up to standard, and it is difficult to select a pump
In general, there is a problem with the use of extra-large hydrocyclones. When the quality of raw coal or the amount of coal to be selected changes, the pressure and flow of the dense medium suspension cannot be automatically adjusted automatically, and the investment is large. High cost and poor reliability

Method used

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  • Heavy medium vortrap, coal separation system and method therefor
  • Heavy medium vortrap, coal separation system and method therefor
  • Heavy medium vortrap, coal separation system and method therefor

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Embodiment Construction

[0039] Below in conjunction with accompanying drawing, the implementation of the present invention is described in detail as follows:

[0040] exist figure 1 and figure 2Among them, the dual-feed three-product dense medium cyclone device of the present invention includes a first-stage cylindrical cyclone 1, which is provided with a feed port 5 for the selected object (mineral or coal), and a suspension mixing device 12 , the clean coal outlet 6 and the heavy mineral outlet 7, wherein the suspension mixing device 12 is a flat rectangular mixing cylinder 20 tapering from large to small, and the large end 22 of the mixing cylinder 20 is provided with a The main suspension feed port 4 and the auxiliary suspension feed port 3, the main suspension feed port 4, the auxiliary suspension feed port 3 and the sealing surface 22 contact parts are sealed and connected by welding, and the two feed ports are in addition One end is provided with a valve flange or other forms of connecting ...

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Abstract

The present invention relates to a double-supply three-product heavy-medium cyclone separator and coal separation method. Said cyclone separator is formed from suspension mixing device, first cycloneseparator and secondary cyclone separator; said invention coal separation system includes: qualified medium barrel, main pump, auxiliary pump, auxiliary pump frequency converter, main pipe, auxiliarypipe and double-supply three product heavy medium cyclone separator. Said invention also provides its coal separation method, and can be used in the washing industry of the coal.

Description

technical field [0001] The present invention relates to a dense medium cyclone device, a coal preparation system and a coal preparation method, in particular to a dense medium cyclone with double feeding and three products, and a coal preparation system and method using the cyclone . Background technique [0002] At present, the non-pressure central feeding three-product dense medium cyclone commonly used in coal preparation plants at home and abroad, such as the book "Coal Preparation with Dense Medium Cyclone" published by China Metallurgical Industry Press in September 1998, pages 144-157 Contained, are composed of two two-product dense medium cyclones directly connected in series, such as the ΓT-3 / 50 type in the Soviet Union, the 3NWX type in China, and the LARCOALDEMS type in the United Kingdom. This type of cyclone has been enlarged in China in recent years. Large-scale cyclones with a diameter of more than 1200mm are used in industry and have been widely used. From ...

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Application Information

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IPC IPC(8): B03B5/34B04C5/26
Inventor 刘峰张文生周媛媛徐之帅钱爱军李瑞和常建勇
Owner 天地科技股份有限公司唐山分公司
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