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Multistage sedimentation rake-free concentration device capable of uniformly distributing materials

A technology of uniform distribution and concentration device, applied in the feeding/discharging device of sedimentation tank, sedimentation tank, dehydration/drying/concentrated sludge treatment, etc. The problem of poor sedimentation effect, etc., can improve the deterioration of the washing process, achieve sufficient separation, and facilitate sedimentation.

Active Publication Date: 2021-01-15
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the integration and large-scale of coal washing plants, the processing capacity has been greatly increased, and the output of coal slime water and the content of fine slime in coal slime water have also increased significantly. Some equipment has reached the specifications of 45m and above, but due to the finer fine mud and the increase in processing capacity, the settlement time period is poor, and the settlement effect is poor. The fine mud in the washing circulating water cannot be effectively removed, which will cause coal The quality of washing is seriously affected, so many coal preparation plants have added two-stage concentration or even three-stage concentration to further purify the washing circulating water, which will take up a lot of land, and there are still residual flotation stages in the slime water that have not been completely The recovered coal foam, resulting in the waste of clean coal, resulting in economic losses

Method used

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  • Multistage sedimentation rake-free concentration device capable of uniformly distributing materials
  • Multistage sedimentation rake-free concentration device capable of uniformly distributing materials
  • Multistage sedimentation rake-free concentration device capable of uniformly distributing materials

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Embodiment Construction

[0047] The utility model relates to a multi-stage subsidence rakeless thickening device with uniform distribution, which includes a material feeding component, a diversion component, and a clean coal collecting component. The guide assembly includes a central tank 21 with a cylindrical portion at the upper end and a funnel at the lower end. The central tank 21 is a cavity structure, and the feeding assembly is arranged above the cavity of the central tank 21. The central tank The lower end of the body 21 is provided with a first discharge port 24 . The coarse coal slime gradually settles to the top of the first discharge port 24 of the central tank 21 and deposits to a certain amount, and is discharged through the first discharge port 24, and the material discharged from the first discharge port 24 is collected , used for medium coal blending or as building materials to increase economic income.

[0048] like figure 1 As shown, the materials and medicaments enter the guide a...

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Abstract

The invention relates to the field of slime water treatment, in particular to a multi-stage sedimentation rake-free concentration device capable of uniformly distributing materials. The device comprises a feeding assembly, a flow guide assembly, a clean coal collecting assembly, the flow guide assembly comprises a central groove body, slime water and a chemical agent flow from the upper part of the central groove body to the inner side wall of the central groove body through the feeding assembly, and then flow to the middle of the central groove body through the flow guide assembly, bubbles after reaction carry fine coal slime to move upwards into the clean coal collecting assembly, the clean coal collecting assembly is located above an outlet of the flow guide assembly, and the clean coalcollecting assembly is sequentially provided with a central material collecting area, a bubble removing area and a flow guide settling area from middle to outside. The device has the advantages thatthe structure of a traditional multi-stage concentration tank is integrated, and the occupied area of the traditional multi-stage concentration tank is greatly reduced.

Description

[0001] This application claims a divisional application of "A Backflow Multi-stage Settling Rakeless Concentrator" with the application number 201911283951.3 filed on December 13, 2019, and the original acceptance institution is in China. technical field [0002] The invention relates to the field of coal slime water treatment, in particular to a uniformly distributed multi-stage subsidence rakeless thickening device. Background technique [0003] In the coal washing process, the slime water treatment, as the finishing link of the washing process, is the key to the effective collection and utilization of coal slime and the closed cycle of washing water, and the thickening device as the carrier of coal slime water treatment and the key equipment for processing has been obtained It is widely used and is of great significance to the closed circulation of washing water, the full utilization of underflow concentrate and environmental protection. [0004] With the integration and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D21/02B01D21/24B01D19/02B01D21/01C02F1/20C02F1/48C02F1/52C02F11/121C02F11/14C02F11/15
CPCB01D21/02B01D21/01B01D21/2405B01D19/02C02F11/14C02F11/15C02F11/121C02F1/5281C02F1/488C02F1/20B01D21/0087B01D21/24B01D21/2433B01D21/2438B01D21/0009B01D21/0066C02F1/24C02F2001/007
Inventor 王超王萌萌赵二宁胡标肖雄刘新春冯阳
Owner ANHUI UNIV OF SCI & TECH
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