Undersize water treatment process for desliming screen

A treatment process and sieve water technology, applied in the direction of solid separation, etc., can solve the problems of loss of clean coal, inability to recover coarse particles, concentrate ore entering tailings, etc.

Inactive Publication Date: 2020-04-17
乌拉特中旗毅腾矿业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The sieve water of the existing desliming screen is only sent to the flotation tank. When the screen surface is worn or damaged during the production process, a large number of coarse particles larger than 0.5mm enter the flotation machine, and the flotation machine cannot recover coarse particles larger than 0.5mm. , which in turn causes this part of the concentrate to enter the tailings and lose part of the clean coal

Method used

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  • Undersize water treatment process for desliming screen
  • Undersize water treatment process for desliming screen

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Embodiment one: a kind of desliming sieve water treatment process, such as figure 1 shown, including the following steps:

[0036] a. Screening: The three-product cyclone separates the clean coal through the de-mediation sieve, and after the de-mediation section of the de-mediation sieve is sorted by the magnetic separator, the magnetic separation tailings enter the clean coal magnetic separation tailings barrel, and then pass through the pump Drive into the clean coal hydrocyclone group, and the bottom flow passes through the chute to the desilting screen;

[0037] b. TBS screening: the coal slime under the raw coal desliming screen passes through the slime bucket, and then is pumped into the coal slime hydrocyclone group. After the bottom flow is sorted by TBS, the overflow of TBS flows into the TBS concentrate bucket, and then pumped into it. TBS concentrate hydrocyclone group separation, the bottom flow passes through the chute to the desilting screen;

[0038] ...

Embodiment 2

[0041] Embodiment two: if figure 2As shown, the difference between the present embodiment and the previous embodiment is that the material distribution assembly 2, the material distribution assembly 2 includes a primary screen 24 and a screening screen 25 located inside the flotation bucket 1, and the primary screen 24 is positioned at the sieve. Above the sub-net 25, the primary selection net 24 and the screening net 25 are all inclined to be arranged, and the direction of inclination is opposite, so that the sailor under the sieve first falls on the primary selection net 24 for screening, and then flows from the primary selection net 24 to The sieving net 25 is screened again; the inclined lower end of the primary selection net 24 is fixedly connected with an inclined material guide plate 241, and the inclined direction and angle of the material guide plate 241 are all the same as the screening net 25, and the inclined lower end of the material guide plate 241 The vertical ...

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Abstract

The invention discloses an undersize water treatment process for a desliming screen, and belongs to the field of clean coal screening. According to the technical scheme, the undersize water treatmentprocess is characterized by comprising the steps that a, screening is conducted, specifically, firstly, medium removal is conducted through a medium removal screen, then screening is conducted by a magnetic separator, and underflow enters a clean coal hydrocyclone set; b, TBS screening is conducted, specifically, undersize coal slime of a raw coal desliming screen is subjected to screening by theTBS concentrate hydrocyclone set and then fed into the desliming screen; and c, material separation is conducted through a flotation and feeding barrel, specifically, after screening is conducted through the desliming screen, undersize water enters the flotation and feeding barrel, and the undersize water is subjected to material separation by the flotation and feeding barrel. According to the undersize water treatment process, the problems are solved that a conventional desliming screen is abraded, consequently, coarse particles are prone to entering a flotation machine, the flotation machinecannot conduct flotation on the coarse particles, and partial concentrate losses are caused; and the effects that the coarse particles can be prevented from entering the flotation machine, and wasteof the coarse particles is avoided are achieved.

Description

technical field [0001] The invention relates to the field of clean coal screening, more specifically, it relates to a desliming sieve water treatment process. Background technique [0002] In the process of screening clean coal, it is first screened, then deslimed through the desliming screen, and after desliming, it goes through flotation such as the bucket into the flotation machine for flotation, so as to achieve the purpose of screening clean coal . [0003] The sieve water of the existing desliming screen is only sent to the flotation tank. When the screen surface is worn or damaged during the production process, a large number of coarse particles larger than 0.5mm enter the flotation machine, and the flotation machine cannot recover coarse particles larger than 0.5mm. , And then cause this part of the concentrate to enter the tailings, and lose part of the clean coal. Contents of the invention [0004] In view of the deficiencies in the prior art, the object of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00
CPCB03B9/005
Inventor 王威
Owner 乌拉特中旗毅腾矿业有限责任公司
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