Multistage multi-pressure jigging machine and coal preparation method thereof

A technology of jigging and jigging, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of not being able to achieve the most ideal state, difficulty in adjustment, and failure to maximize the effect of the whole machine.

Inactive Publication Date: 2009-09-30
JINYITONG SCI ANDTECH BEIJING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the different bed thickness, material structure and weight in different sections, the existing method can only adjust to meet different needs by adjusting the air volume or frequency, but the result of this approach is that only comprehensive Effect, starting from the effect of comprehensively taking care of each section, the low-pressure wind pressure used can only be a compromise choice, and as a result, each section cannot achieve the most ideal state
The above method is relatively difficult to adjust on more than two stages of jigs, so that the effect of the whole machine cannot be maximized.

Method used

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  • Multistage multi-pressure jigging machine and coal preparation method thereof
  • Multistage multi-pressure jigging machine and coal preparation method thereof

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Embodiment 1

[0034] Embodiment 1, an air pulsation jig with multi-chambers shared air chambers for coal preparation will be described as an example below. A multi-chamber shared air chamber air pulsation multi-pressure jig machine, the machine is realized on the existing multi-chamber shared air chamber air pulsation jig machine, the body structure of the machine (including jig chamber, air chamber, air valve , sieve plate, etc.), all hardware such as feeding and discharging systems, control systems and other auxiliary systems are existing technologies. It is also equipped with its own air inlet and air supply system with different air supply pressures to realize the independent operation or control of each section of wind supply, and the air supply pressure of this section can be adjusted during the jig work as required to realize the air supply of each section. The jigging work under mutually independent air supply pressure constitutes a multi-chamber shared air chamber air pulsation mul...

Embodiment 2

[0037] Embodiment 2, an air pulsation jig with multiple chambers sharing an air chamber for coal preparation will be described below as an example. Another multi-chamber shared air chamber air pulsation multi-pressure jig machine, this machine is also realized on the existing multi-chamber shared air chamber air pulsation jig machine, the body structure of this machine (comprising jig chamber, air chamber, wind Valves, sieve plates, etc.), feeding and discharging systems, control systems and other auxiliary systems, etc., are all existing technologies, and are characterized by passing through the other sections except the first section in the air box of the existing air chamber air pulsation jig An adjustable pressure relief valve is connected in parallel next to each exhaust valve to realize independent manipulation or control of the low-pressure air pressure supplied to the bed by each section, and it is also possible to adjust the relief valve of this section during the jig ...

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Abstract

The present invention discloses a multistage multi-pressure jigging machine and a coal preparation method thereof, a jigging machine comprising two to four separating segments and a coal preparation method thereof. The invention adopts low wind pressures which are independent in each separating segment and are most appropriate for the material separated in the separating segment. The low wind pressures adopted in different separating segments in one machine are different and have remarkable difference. According to the multistage multi-pressure jigging machine adopting the structure and the coal preparation method, the jig beds of different separating segment can provide most appropriate shatter value for the separated material. In the actual technique of jigging separation which has larger difference between the average densities and granularities of separated material on segments, the layering effect of each segment can obtain an optimal state thereby greatly increasing the separation efficiency of device, increasing the recovery rate of product, reducing the effect of product loss and obtaining the separation effect which can not obtained by prior jigging machine.

Description

Technical field [0001] The invention relates to a coal preparation method and equipment, in particular to a multi-stage multi-pressure jig for coal preparation and a coal preparation method thereof. Background technique [0002] At present, the multi-stage jig and its coal preparation method commonly used at home and abroad are as contained in pages 193 to 233 of the book "Mineral Processing" published by China University of Mining and Technology Press in October 2002. The representative German Bardock series jig and its coal preparation method in this industry, the former Soviet Union's OM type jig and its coal preparation method, the Japanese NU type jig and its coal preparation method, and my country's Pingdingshan The X series jig and its coal preparation method developed by the Coal Preparation Design and Research Institute, the SKT series jig and its coal preparation method developed by the Tangshan Branch of the Coal Research Institute, and a composite air chamber discl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B5/20B03B5/24
Inventor 常建勇常岑曹珊珊梁会召
Owner JINYITONG SCI ANDTECH BEIJING CO LTD
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