A turbulence generating device suitable for rapid sorting of fine particles

A generating device and fine particle technology, applied in flotation, solid separation, etc., can solve the problems of increasing operating costs and increasing energy consumption, and achieve the effects of low cost, increased turbulence intensity, and simple structure

Active Publication Date: 2020-09-01
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the method to increase the turbulence intensity in the flotation device is to increase the external energy input, such as increasing the impeller rotation speed in the flotation machine, etc., but this method increases more energy consumption while strengthening the recovery of fine particles, and improves running cost

Method used

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  • A turbulence generating device suitable for rapid sorting of fine particles
  • A turbulence generating device suitable for rapid sorting of fine particles
  • A turbulence generating device suitable for rapid sorting of fine particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A turbulent flow generating device suitable for rapid separation of fine particles, comprising a cylindrical pipe flow section 1, and several conical rings 2 arranged in the pipe flow section, wherein each conical ring 2 is arranged along the pipe flow section The axial direction of the conical rings 2 is evenly arranged, and the interval between the conical rings 2 is 15mm. The installation direction of the conical rings 2 in the pipe flow section 1 is set so that the slurry flows from the bottom surface to the top surface; the outer diameter of the bottom surface of the conical rings D. 1 The same as the inner diameter of pipe flow section 1, the outer diameter D of the top surface of the conical ring 2 and the outer diameter of the bottom surface D 1 The ratio is 0.4, and the angle between the outer wall of the conical ring and the inner wall of the pipe flow section is 25°. In order to avoid energy loss, there is no gap between the edge of the bottom surface of the...

Embodiment 2

[0023] Such as Figure 1 to Figure 3 As shown, a turbulence generating device suitable for rapid separation of fine particles includes a cylindrical pipe flow section 1, and also includes several conical rings 2 arranged in the pipe flow section, wherein each conical ring 2 is along the The axial direction of the pipe flow section is evenly arranged, and the interval between the conical rings 2 is 20mm. The installation direction of the conical rings 2 in the pipe flow section 1 is set so that the slurry flows from the bottom surface to the top surface; the bottom surface of the conical rings The outer diameter D 1 The same as the inner diameter of pipe flow section 1, the outer diameter D of the top surface of the conical ring 2 and the outer diameter of the bottom surface D 1 The ratio is 0.6, and the angle between the outer wall of the conical ring and the inner wall of the pipe flow section is 30°. In order to avoid energy loss, there is no gap between the edge of the bo...

Embodiment 3

[0025] A turbulent flow generating device suitable for rapid separation of fine particles, comprising a cylindrical pipe flow section 1, and several conical rings 2 arranged in the pipe flow section, wherein each conical ring 2 is arranged along the pipe flow section The axial direction of the conical rings 2 is evenly arranged, and the interval between the conical rings 2 is 25mm. The installation direction of the conical rings 2 in the pipe flow section 1 is set so that the slurry flows from the bottom surface to the top surface; the outer diameter of the bottom surface of the conical rings D. 1 The same as the inner diameter of pipe flow section 1, the outer diameter D of the top surface of the conical ring 2 and the outer diameter of the bottom surface D 1 The ratio is 0.6, and the angle between the outer wall of the conical ring and the inner wall of the pipe flow section is 45°. In order to avoid energy loss, there is no gap between the edge of the bottom surface of the...

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PUM

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Abstract

The invention discloses a turbulent flow generating device suitable for rapid separation of fine particles, which comprises a cylindrical pipe flow section and several conical rings arranged in the pipe flow section, wherein each conical ring is arranged along the pipe flow section. The axial direction is evenly arranged, and the installation direction of the conical ring in the pipe flow section is set so that the slurry flows from the bottom to the top surface; the outer diameter D1 of the bottom surface of the conical ring is the same as the inner diameter of the pipe flow section, and the outer diameter D2 of the top surface of the conical ring The ratio to the outer diameter D1 of the bottom surface is 0.3-0.6, and the angle between the outer wall of the conical ring and the inner wall of the pipe flow section is 15°-45°; several water holes are evenly arranged on the outer wall of the conical ring. The invention can increase the intensity of turbulent flow without additional energy consumption, reduce the lower limit of particle size that can be floated, and improve the recovery rate of fine particles.

Description

technical field [0001] The invention relates to a pipe flow device, in particular to a turbulence generating device suitable for rapid separation of fine particles, and belongs to the technical field of mineral processing equipment. Background technique [0002] The generation of fine-grained minerals is mainly due to the fact that the distribution of useful minerals is too small and must be finely ground, or due to over-grinding of coarse-grained minerals. With the reduction of ore particle size, the mass of ore particles decreases and the specific surface area increases. In conventional flotation, the probability of collision of ore particles is reduced, the specificity of reagents is poor, and mechanical inclusions are caused, which ultimately leads to the concentration and recovery of concentrates. rate drops. At the same time, due to the decrease of the particle size, the interference of the surface electrical properties of the fine particles on its flotation behavior ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/16
CPCB03D1/16Y02P70/10
Inventor 王利军郑恺昕李晓恒闫小康张海军曹亦俊
Owner CHINA UNIV OF MINING & TECH
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