Overflow-circulation classification method for diamond micro-powder

A diamond micropowder and grading method technology, which is applied in chemical instruments and methods, solid separation, wet separation, etc., can solve the problems of large particle size distribution range, diamond micropowder pollution, and low efficiency of grading methods, and achieve human interference The effect of less, less impurities and uniform particles

Inactive Publication Date: 2016-04-20
山东山田新材科研有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Set the sedimentation time with a fixed clock according to the particle size. After the sedimentation time is up, manually extract the required particle size, add water, stir, and repeat the cycle. This classification method is very inefficient, and the obtained product has a large particle size distribution ra

Method used

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  • Overflow-circulation classification method for diamond micro-powder
  • Overflow-circulation classification method for diamond micro-powder

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] The method for grading diamond fine powder by overflow circulation includes the following steps:

[0022] (1) Constant pressure water supply system: set overflow water pressure and flow constant pressure water supply

[0023] Adjust the overflow water pressure of the pressure sensor in the constant pressure water supply system and the overflow flow of the electromagnetic flowmeter according to the particle size of the diamond micropowder to be classified, and turn on the water pump to supply water to the overflow bucket of the overflow classification system, where the overflow water pressure It is 0.3MPa, the overflow flow rate of diamond powder of different particle size is as follows:

[0024] Particle diameter μm

[0025] (2) Overflow classification system: diamond powder overflow classification

[0026] Stir the diamond powder to be graded with deionized water to form a slurry into the overflow bucket, add deionized water to the overflow bucket, the hei...

Example Embodiment

[0029] Example 2

[0030] The method for grading diamond fine powder by overflow circulation includes the following steps:

[0031] (1) Constant pressure water supply system: set overflow water pressure and water volume constant pressure water supply

[0032] Overflow classification of diamond powder with a particle size of 8-12μm, adjust the overflow water pressure of the pressure sensor in the constant pressure water supply system to 0.3MPa, and the overflow flow rate of the electromagnetic flowmeter to 0.07573m 3 / h, turn on the water pump to supply water to the overflow bucket of the overflow classification system;

[0033] (2) Overflow classification system: diamond powder overflow classification

[0034] Stir the diamond powder to be graded with deionized water to form a slurry into the overflow bucket, add deionized water to the overflow bucket, the height of the water does not exceed the overflow cone, and the concentration of diamond powder in the overflow bucket is 20° Bé, wh...

Example Embodiment

[0038] Example 3

[0039] The method for grading diamond fine powder by overflow circulation includes the following steps:

[0040] (1) Constant pressure water supply system: set overflow water pressure and water volume constant pressure water supply

[0041] Overflow classification of diamond powder with a particle size of 30-40μm, adjust the overflow water pressure of the pressure sensor in the constant pressure water supply system to 0.3MPa, and the overflow flow rate of the electromagnetic flowmeter to 0.60581m 3 / h, turn on the water pump to supply water to the overflow bucket of the overflow classification system;

[0042] (2) Overflow classification system: diamond powder overflow classification

[0043] Stir the diamond powder to be graded with deionized water to form a slurry into the overflow bucket, add deionized water to the overflow bucket, the height of the water does not exceed the overflow cone, and the concentration of diamond powder in the overflow bucket is 30° Bé: W...

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PUM

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Abstract

The invention discloses an overflow-circulation classification method for diamond micro-powder, belongs to the technical field of diamond production, and solves the defects of low production efficiency, large particle size distribution and high impurity content in the prior art. The overflow-circulation classification method for the diamond micro-powder comprises the following steps: (1) setting a water pressure and a flow rate of an overflow, and carrying out constant-pressure water supply by a constant-pressure water supply system; (2) carrying out overflow classification for the diamond micro-powder by an overflow classification system; and (3) carrying out precipitation classification by a precipitation water storage system to obtain the diamond micro-powder with the needed particle sizes. The method disclosed by the invention has high production efficiency and less interference of human factors; and the produced diamond micro-powder are centralized in distribution, uniform in particle sizes, and low in impurity content.

Description

technical field [0001] The invention relates to a diamond powder overflow circulation classification method, which belongs to the technical field of diamond production. Background technique [0002] The traditional method of sorting diamond micropowder is to feed 5000 carats into a 5000ml beaker or a plastic bucket, add water to the scale, use a plexiglass rod to manually stir and then back-stir until the water surface is calm, and then clean the beaker wall. Set the sedimentation time with a fixed clock according to the particle size. After the sedimentation time is up, manually extract the required particle size, add water, stir, and repeat the cycle. This classification method is very inefficient, and the obtained product has a large particle size distribution range. Unevenness, many impurities, and time error caused by human factors, the influence of dust and other pollutants in the air may lead to the pollution of diamond powder. In addition, this classification method ...

Claims

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Application Information

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IPC IPC(8): B03B5/66
CPCB03B5/66
Inventor 龚志刚周强郝文虎
Owner 山东山田新材科研有限公司
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