Static flotation column suitable for coarse particle recycling

A technology of coarse particles and flotation columns, applied in flotation, solid separation, etc., can solve the problems of not meeting the requirements of coarse particle slime recovery, unstable operation of flotation columns, small processing capacity, etc., and achieve a mild flow field environment , Simple structure, strong processing ability

Active Publication Date: 2019-05-14
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0007] In view of the above analysis, the present invention aims to provide a static flotation column suitable for coarse particle recovery to solve the problem of unstable operation, poor adaptability, small processing capacity, poor sorting effect and inability to meet the existing flotation columns. Coarse Slime Recycling Requirements Issues

Method used

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  • Static flotation column suitable for coarse particle recycling

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Embodiment 1

[0029] A specific embodiment of the present invention discloses a static flotation column suitable for coarse particle recovery, such as figure 1 As shown, including the first cylinder 3 and the second cylinder 4, the first cylinder 3 and the second cylinder 4 are barrel-shaped structures, and the second cylinder 4 is partially nested in the first cylinder 3; A feed distributor 10 is provided in the space from the top opening of the second cylinder 4 to the top opening of the first cylinder 3, and the feed distributor 10 is connected with the feed pipe 1; The water distribution pipe 9; the upper outer circumference of the first cylinder 3 is provided with an overflow tank 7; the bottom of the first cylinder 3 and the bottom of the second cylinder 4 are connected by a guide tube 2 to form a fluid circulation pipeline.

[0030] In this embodiment, the second cylinder 4 is partly nested in the first cylinder 3. The specific nesting is: the upper part of the second cylinder 4 pene...

Embodiment 2

[0038] A specific embodiment of the present invention discloses a flotation method suitable for coarse particle recovery, specifically utilizing the static flotation column suitable for coarse particle recovery in Embodiment 1 to carry out flotation, including the following steps:

[0039] Step 1: inject water into the first column 3 and the second column 4 . Specifically, before starting the coal slime flotation, close the first diversion port and the bottom flow pipe / discharge port 15, open the water injection pipe 11 switch, start the water pump, and fill the second cylinder 4 with clear water, and the second cylinder 4 After the middle is filled with water, the water overflows and flows into the second column 4, and 1 / 5 to 1 / 3 volume of clear water is injected into the first column 3, preferably 1 / 4 volume of clear water is injected into the first column 3, and the water injection Complete, close the water injection pipe 11.

[0040] Step 2: Turn on the circulation pump 6...

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Abstract

The invention relates to a static flotation column suitable for coarse particle recycling, belongs to the technical field of mineral flotation and solves problems of unstable running, poor adaptability, small processing capacity, poor separation effect and failure to meet requirements on coarse particle slime recycling of the existing flotation column. The static flotation column comprises a firstcolumn body and a second column body; each of the first column body and the second column body is of a barrel-shaped structure; the upper part of the second column body penetrates after passing through a bottom plate of the first column body and is hermetically nested in the first column body; a feeding distributor is arranged in the space from a top opening of the second column body to a top opening of the first column body; the feeding distributor is connected with a feeding pipe; a water distribution pipe connected with a flush water pump is arranged above the feeding distributor; an overflowing groove is formed in the upper outer periphery of the first column body; and the bottom of the first column body is connected with the bottom of the second column body by a flowing guiding pipeto form a fluid circulation loop. The flotation column disclosed by the invention is stable to run, good in separation effect, and capable of being widely applied in coarse particle coal slime recycling.

Description

technical field [0001] The invention relates to the technical field of mineral flotation, in particular to a static flotation column suitable for coarse particle recovery. Background technique [0002] Coal is one of the main pillars of energy in my country, with abundant resources and large reserves. The storage, transportation, processing and utilization of untreated coal will pollute the environment and endanger human health. With the continuous implementation of the national sustainable development strategy, the clean utilization of coal has also become the focus of heated discussions. In recent decades, under the background of rapid changes in science and technology, the level of coal mining mechanization has been continuously improved, and the dense medium coal preparation technology has been improved day by day, resulting in a sharp increase in the amount of coal slime in the coal preparation process, which brings new problems to the subsequent slime treatment proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02B03D1/14B03D103/08
Inventor 邢耀文桂夏辉丁世豪徐梦迪曹亦俊张友飞夏阳超
Owner CHINA UNIV OF MINING & TECH
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