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Compact rake-free concentrator

A kind of thickening device, compact technology, applied in the feeding/discharging device of the settling tank, dehydration/drying/thickened sludge treatment, foam dispersion/prevention, etc., can solve the problem of ineffective removal of fine mud and coal washing quality impact, poor settling effect, etc., to achieve the effect of improving the deterioration of the washing process, accelerating adhesion, and reducing waste

Active Publication Date: 2020-03-31
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 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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Embodiment Construction

[0045] The utility model relates to a compact rakeless thickening device, which includes a feeding assembly, a diversion assembly, and a clean coal collection assembly. 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.

[0046] The materials and medicaments flow from the top of the central tank body 21 to the middle of the central tank body 21, that i...

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Abstract

The invention relates to the field of slime water treatment, in particular to a compact rake-free concentrator. The compact rake-free concentrator comprises a feeding assembly, a diversion assembly and a clean coal collecting assembly. The diversion assembly further comprises a central tank body, coal slime water passes through the feeding assembly, flows with a medicament from the upper part of the central tank body to the middle part of the central tank body, and is diffused in all directions, after the reaction, residual mineralized bubbles and fine coal slime move upwards into the clean coal collecting assembly from the inner side wall of the central tank body, the clean coal collecting assembly is located above the outlet of the diversion assembly, the clean coal collecting assembly is sequentially provided with an edge feeding area and a defoaming area from outside to inside, the clean coal collecting assembly further comprises a diversion settling area arranged on the outer sidewall of the central tank body, and slime water defoamed by the defoaming area is output to the inlet of the diversion settling area from the middle of the central tank body through a first overflow discharge pipe. According to the compact rake-free concentrator, a traditional multi-section concentration tank is structurally integrated, and the occupied area of the traditional multi-section concentration tank is greatly reduced.

Description

technical field [0001] The invention relates to the field of coal slime water treatment, in particular to a compact rakeless thickening device. Background technique [0002] 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. [0003] 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 d...

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
CPCB01D21/02B01D21/01B01D21/2405B01D19/02C02F11/14C02F11/15C02F11/121C02F1/5281C02F1/488C02F1/20C02F2103/10C02F2305/12B01D21/2433B01D21/0084B01D21/0009
Inventor 胡标张金赵二宁王超肖雄江雪晴武守真杨俊龙周佳强仇成亮张宇
Owner ANHUI UNIV OF SCI & TECH
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