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Device and method for diamond micro-powder overflowing grading treatment

A diamond micropowder and grading treatment technology, which is applied in chemical instruments and methods, solid separation, wet separation, etc., can solve the problems of low production efficiency, large amount of pure water, wide particle size distribution of sedimentation and grading, and achieve fine powder particle size concentration, The effect of saving consumption

Inactive Publication Date: 2018-07-06
常熟华融太阳能新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem of this process is that the amount of pure water is large, the production efficiency is low, and the production cycle is basically more than one week, especially for some fine particles with slow sedimentation, the production cycle is more than one month.
In addition, there is a great relationship between the natural sedimentation velocity and the shape of the particles, and the difference in shape is likely to cause a wide particle size distribution of the sedimentation classification

Method used

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  • Device and method for diamond micro-powder overflowing grading treatment
  • Device and method for diamond micro-powder overflowing grading treatment
  • Device and method for diamond micro-powder overflowing grading treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, a kind of diamond powder overflow classification treatment equipment, including feed pump, metering pump, flow divider, guide column and overflow cone, homogenization tank, pure water device, one end of feed pump and homogenization tank One end of the metering pump is connected to the pure water device, the other end is connected to the one-way valve, the diversion column runs through the liquid separator and the overflow cone, and the bottom end of the diversion column is connected to the one-way valve. Catchy connection. The mechanical metering pump can accurately control the flow of pure water entering the overflow cone, so as to ensure that the drag force of the diamond particles when the water rises during the overflow process is controllable; there is a butterfly-shaped liquid separation at the bottom of the overflow cone Pure water enters the butterfly separator and disperses, and then spreads smoothly upward along the diversion column...

Embodiment 2

[0032] The difference from Example 1 is that the production of 6-12um particle size is taken as an example. The operation is as follows: put 10,000ct of diamond powder with mixed particle size into the classification operation, control the flow rate of 0.22m3 / h and the pressure of 0.3Mpa to overflow for 18h, and first put the 5- 10um and finer particles are separated, and then the influent flow is increased for overflow classification for 12 hours to obtain 1,000ct (the output has a great relationship with the particle size distribution of the feed) 6-12um.

[0033] D10

[0034] The particle size test results of the product are shown in the table above.

Embodiment 3

[0036] Taking the production of 7-14um particle size as an example, the operation is as follows: put 10,000ct mixed particle size diamond powder into the classification operation, control the flow rate of 0.5m3 / h and the pressure of 0.4Mpa to overflow for 12h, first classify the 6-12um and finer particles Then increase the influent flow and overflow classification for 12 hours to obtain 1,000ct (the output has a great relationship with the particle size distribution of the feed) 7-14um.

[0037] D10

[0038] The particle size test results of the product are shown in the table above.

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Abstract

The invention discloses a device and method for diamond micro-powder overflowing grading treatment. The device for the diamond micro-powder overflowing grading treatment comprises a cooling-water machine, an ultrapure water machine, a homogenizing tank, a mechanical measuring pump, a counterbalance valve, a one-way valve, a pulse damper, an overflowing cone, a discotic dispenser, a diversion column and a feeding pump. The device for the diamond micro-powder overflowing grading treatment is characterized in that dispersed diamond turbid liquid in the homogenizing tank is transported into the overflowing cone by the feeding pump, pure water produced by the ultrapure water machine is controlled by the cooling-water machine under the constant temperature, and the diamond particles with different particle sizes are flowed out of the overflowing cone by controlling the flow of ultra-pure water entering the overflowing cone through the measuring pump, so that the fine grading of the diamond micro-powder is realized. According to the device for the diamond micro-powder overflowing grading treatment, rapid and accurate grading of the diamond micro-powder with the different particle sizes can be realized, the production cycle is shortened, and the particle size distribution is concentrated.

Description

technical field [0001] The invention belongs to the field of diamond micropowder processing, and in particular relates to a device and method for diamond micropowder overflow classification treatment. Background technique [0002] Due to its high cutting efficiency and good wear resistance, diamond micropowder has been widely used in the processing field. The most important parameter of high-quality diamond powder is the particle size distribution. Only products with concentrated particle size can achieve high-efficiency, low-surface-defect cutting, grinding and polishing. [0003] The micropowder grade diamond particles in the market mostly adopt the sedimentation and classification process. The diamonds are put into the sedimentation machine and dispersed evenly by stirring. Then, according to the different sedimentation speeds of different particles in water, the diamonds of different particle sizes are separated by a siphon within a specified time. Particles are drawn o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B5/38
CPCB03B5/38
Inventor 张福军孔令奇
Owner 常熟华融太阳能新型材料有限公司
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