Flotation device and method suitable for coarse slime separation

A flotation device and coarse coal slime technology, which is applied in flotation, solid separation, etc., can solve the problems of low recovery rate of coarse coal slime and poor sorting accuracy, so as to facilitate flotation recovery, efficient sorting and recovery, and improve rough running effect

Active Publication Date: 2022-07-05
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above analysis, the embodiment of the present invention aims to provide a flotation device and method suitable for the separation of coarse coal slime to solve the problems of low recovery rate and poor separation accuracy of the existing coarse coal slime. The separation and recovery of mud provides a simple structure, high-efficiency separation and recovery device and method with good separation effect

Method used

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  • Flotation device and method suitable for coarse slime separation
  • Flotation device and method suitable for coarse slime separation
  • Flotation device and method suitable for coarse slime separation

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Embodiment 1

[0045] A specific embodiment of the present invention, such as figure 1 As shown in the figure, a flotation device suitable for coarse slime separation is disclosed, including a flotation column 4 and a gas-water distribution unit. The water distribution unit includes a first air distribution unit and an air-water mixing distribution unit. The air-water mixing distribution unit is located above the first air distribution unit. The air bubbles generated by the first air distribution unit are mixed with the fluidized water and then enter the air-water distribution unit. Above the flotation column 4.

[0046] Compared with the prior art, the flotation device suitable for coarse slime separation provided by this embodiment includes a gas-water distribution unit, and the gas-water distribution unit includes a first gas distribution unit and a gas-water mixing unit arranged up and down. The bubbles generated by the air distribution unit enter the air-water mixing and distribution u...

Embodiment 2

[0076] Another specific embodiment of the present invention discloses a flotation method suitable for the separation of coarse slime, using the flotation device suitable for the separation of coarse slime in Example 1, when only the flotation column 4 exists In the case of a primary air distribution unit, the steps include:

[0077] Step 1: inject fluidized water containing a foaming agent into the annular water tank 5 through the water delivery pipe 6, and the fluidized water containing the foaming agent enters the strip-shaped air-water mixing chamber 13 through the annular water tank 5; 8 Input compressed air into the first annular high-pressure air chamber 9, the air enters the first strip-shaped high-pressure air chamber 14 through the first annular high-pressure air chamber 9, and is dispersed into microbubbles through the first bubble generating plate 10 to form a rising microbubble flow and enter The strip-shaped gas-water mixing chamber 13 is fully mixed with the flui...

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Abstract

The invention relates to a flotation device and method suitable for coarse slime separation, belongs to the technical field of mineral separation and recovery, and solves the problems of low coarse slime recovery rate and poor separation precision in the prior art. The device comprises a flotation column and a gas-water distribution unit, the gas-water distribution unit is located on the lower portion of the flotation column and concentrically arranged, the gas-water distribution unit comprises a first gas distribution unit and a gas-water mixed distribution unit, and the gas-water mixed distribution unit is located above the first gas distribution unit. The device is simple in structure and good in sorting effect.

Description

technical field [0001] The invention relates to the technical field of mineral separation and recovery, in particular to a flotation device and method suitable for coarse slime separation. Background technique [0002] Coal plays an indispensable role in my country's national economy. Industries that are closely related to people's lives, such as energy, chemical industry, and steel, all require direct or indirect use of coal or coal-processed products. Efficient utilization of coal resources is critical to my country's sustainable development. has great significance. The washing and processing of coal is an important prerequisite for realizing the efficient utilization of coal resources. With the popularization and application of mechanized mining technology in my country, in addition, heavy medium separation has become the mainstream coal preparation technology. ) content is increasing. [0003] The fine-grained grade (-3mm) of the selected raw coal is generally divided in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02B03D1/14B03D1/24B03D103/08
CPCB03D1/02B03D1/14B03D1/1456B03D1/245B03D2203/08
Inventor 徐梦迪邢耀文桂夏辉张友飞曹亦俊刘炯天丁世豪何琦尹青临
Owner CHINA UNIV OF MINING & TECH
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