A secondary hydraulic flotation machine and flotation method for mineral coarse particle separation

A technology of coarse particles and flotation machines, applied in flotation, solid separation, etc., can solve the problems of poor adaptability and low sorting efficiency, and achieve the effect of reducing the cost of grinding and floating, reducing the load of grinding and floating, and improving the recovery rate

Active Publication Date: 2022-03-08
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, optical separation, color separation, and X-ray separation technologies can all sort massive minerals, but they are all for particle separation, and there are problems such as low separation efficiency and poor adaptability.
In the prior art, there is a kind of coarse particle flotation machine for mining. By adding circulation channels and grid plates in the flotation machine tank, the current flotation particle size can be improved, but this flotation machine is only suitable for parts with coarse particle size. minerals
[0004] In summary, in view of the problems of low sorting efficiency and poor adaptability of current coarse particle sorting equipment, it is of great significance to develop a secondary hydraulic flotation machine and sorting method for mineral coarse particle sorting and throwing tailings.

Method used

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  • A secondary hydraulic flotation machine and flotation method for mineral coarse particle separation
  • A secondary hydraulic flotation machine and flotation method for mineral coarse particle separation
  • A secondary hydraulic flotation machine and flotation method for mineral coarse particle separation

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Embodiment 1

[0080] This embodiment provides a secondary hydraulic flotation method for sorting and discarding tailings of coarse particles, using the above-mentioned secondary hydraulic flotation machine.

[0081] In this embodiment, a certain crystalline graphite ore is used, the fixed carbon content of the raw ore is 14.59%, the distribution rate of +0.150mm graphite flakes in the raw ore reaches 93.21%, and the grinding fineness reaches -0.300mm, which can achieve better monomer solution Leave.

[0082] Step 1: Directly import the 3.00-0.15mm grain size mineral particles into the mixing tank 18, control the slurry concentration to 50%, and add quicklime (1000g / t), kerosene (60g / t) and No. 2 oil (25g / t) in sequence every 3 minutes t) carry out pulping;

[0083] Step 2: Open the first water inlet valve 2 and the second water inlet valve 14, inject clean water into the first cylinder 11 and the second cylinder 10, until the water in the second cylinder 10 overflows to the third cylinder ...

Embodiment 2

[0087] This embodiment provides a secondary hydraulic flotation method for sorting and discarding tailings of coarse particles, using the above-mentioned secondary hydraulic flotation machine.

[0088] In this embodiment, molybdenite from a certain place is used, the raw ore grade is 0.098%, and the main gangue minerals are quartz, feldspar, mica and chlorite.

[0089] Step 1: Directly import the 3.00-0.15mm grain grade mineral particles into the mixing tank 18, control the slurry concentration to 70%, and add quicklime (900g / t), kerosene (90g / t) and No. 2 oil (40g / t) in sequence every 3 minutes t) carry out pulping;

[0090] Step 2: Open the first water inlet valve 2 and the second water inlet valve 14, inject clean water into the first cylinder 11 and the second cylinder 10, until the water in the second cylinder 10 overflows to the third cylinder stably In the column body 9; open and adjust the first air intake valve 4 and the second air intake valve 12, ventilate in the f...

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Abstract

The invention discloses a secondary hydraulic flotation machine and a flotation method for mineral coarse particle separation, which belong to the technical field of mineral flotation and solve the problem of low purity of the concentrate after separation by the existing flotation machine question. The secondary hydraulic flotation machine includes a first cylinder, a second cylinder, a third cylinder and an air-water mixing input device; the three cylinders are all cylindrical structures; the second cylinder is nested in the The outside of the first cylinder; the third cylinder is nested outside the upper end of the second cylinder; the upper end of the third cylinder is higher than the first cylinder and the second cylinder The upper end surface of the second cylinder is lower than the upper end surface of the first cylinder; the side of the third cylinder is provided with a first row of mine openings, and the side of the second cylinder is provided with The second row of mines. The secondary hydraulic flotation machine and the flotation method of the invention can improve the ore grade and recovery rate of the secondary hydraulic flotation concentrate.

Description

technical field [0001] The invention belongs to the technical field of mineral flotation, and in particular relates to a secondary hydraulic flotation machine and a flotation method for sorting coarse mineral particles. Background technique [0002] As my country's mineral resources become increasingly "poor, miscellaneous, and fine", the current fine grinding multi-stage flotation process not only has problems such as high grinding energy consumption, severe wear and high flotation costs, but also excessive fine particles will cause tailings dehydration And comprehensive utilization is difficult. [0003] Pre-sorting and throwing tailings of mineral resources at a coarser particle size can effectively overcome the above-mentioned difficulties. At present, optical separation, color separation and X-ray separation technologies can realize the separation of massive minerals, but they are all for particle separation, and there are problems such as low separation efficiency and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/24B03D1/14B03D1/02
CPCB03D1/245B03D1/1412B03D1/02
Inventor 彭伟军曹亦俊李超
Owner ZHENGZHOU UNIV
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