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A kind of nano bead grinding system and preparation method of nano crystal microsphere

A nano-bead and bead mill technology, applied in grain processing and other directions, can solve the problems of unreasonable design of grinding chamber, affecting the dispersion effect of powder pulverizer, unrealizable screen structure, etc., and achieves controllable quality and other indicators. The effect of increasing apparent surface area and achieving production goals

Active Publication Date: 2018-01-23
GUANGXI NON FERROUS METALS GROUP HUIYUANMENGYE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the unreasonable design of the grinding chamber, the grinding media (beads) are irregularly gathered at the slurry outlet of the grinding chamber, which cannot give full play to the full performance of the microbeads and affects the dispersion effect of the powder pulverizer.
[0004] The bead mills in the prior art all have a precise screen, its function is to make the slurry flow out from the screen, and the grinding bead particles are blocked by the screen and continue to work in the cavity, but the bead mill has no effect on the screen. There are requirements for the gap of the mesh, and the gap must not be larger than half of the average diameter of the grinding medium (beads). Due to the advancement of technology, the particle size of the grinding medium is getting smaller and smaller. There are already 0.015mm beads, and the screen is uniform. The gap is only 0.007mm, which is very difficult to manufacture and difficult to use and maintain. If finer beads continue to appear, the screen structure will not be realized
As of today, the above deficiencies have not been resolved
[0005] In addition, the bead mills of the prior art are all single-trough (barrel) circular grinding during grinding, and cannot continuously feed materials and output continuously. Only one groove (barrel) that passes the grinding can be discharged to the next barrel (trough). ) milling, the output is low, and the particle size distribution of the abrasive is wide

Method used

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  • A kind of nano bead grinding system and preparation method of nano crystal microsphere
  • A kind of nano bead grinding system and preparation method of nano crystal microsphere

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] figure 1 It is a structural schematic diagram of the nano bead milling system of the present invention; figure 2 It is a schematic structural diagram of a bead mill in an embodiment of the present invention.

[0028] See figure 1 with figure 2 , The nano-bead mill system provided by the present invention is composed of a nano-bead mill 1, a high-speed centrifugal separator 2, a central controller 3, a pipeline 9, a pump 5 and a stirring tank 4.

[0029] The nano-bead mill 1 adopts a screenless design, including a grinding cylinder 10. The grinding cylinder 10 is equipped with a main shaft 11, a centrifugal separation disc 12, and 10-15 pieces are connected to the main shaft 11 at a certain inclination, and have round holes of different apertures. The stirring impeller 13; the centrifugal separation disc 12 is set on the main shaft 11 of the...

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Abstract

The invention discloses a nanometer bead milling system and a nanocrystalline microsphere preparation method. The nanometer bead milling system comprises a bead mill, a plurality of centrifugal machines, a stirring tank and a central control unit. The bead mill comprises a milling cylinder. The milling cylinder is internally provided with a spindle. A centrifugal separation disk and stirring impellers are mounted on the spindle. The centrifugal machines are connected in sequence. Each centrifugal machine comprises an inlet, a heavy liquid outlet and a light liquid outlet. The inlet of the first centrifugal machine is connected with an outlet of the bead mill. The heavy liquid outlets of the centrifugal machines are connected with an inlet of a pump. The light liquid outlet of one centrifugal machine is connected with an inlet of a next stage of centrifugal machine. The stirring tank is used for containing slurry. An outlet of the stirring tank is connected with the inlet of the pump. An outlet of the pump is connected with an inlet of the bead mill. The central control unit is connected with the bead mill, the centrifugal machines, the stirring tank and the pump. The nanometer bead milling system solves the technical problems that the particle size of powder milled through an existing bead milling system cannot reach the nano-scale size, continuous charge production cannot be realized, and the output is low.

Description

technical field [0001] The invention belongs to the field of nano-powder grinding and dispersing, and in particular relates to a nano-bead milling system and a preparation method of nano-crystal microspheres. Background technique [0002] Nanotechnology is an important technical field in the development of science and technology today. Nanotechnology will create another wave of technological innovation and industrial revolution, and its application fields are very extensive, covering the electronics industry, optoelectronics industry, medical biochemical industry and basic industries. Regardless of the field of application, nanoscale materials are required. How to obtain nano-scale powder has become a joint research topic among production, learning and research. [0003] In the past ten years, although there have been several bead mills capable of preparing nano-scale powders, such as disc-type bead mills and pin-type bead mills, they all have shortcomings. Due to the unr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C17/16B02C17/18
CPCB02C17/16B02C17/161B02C17/163B02C17/18B02C21/00
Inventor 陈奇志童张法万维华方皓莫秀恒陆宾史磊何敏韦革斌覃忠生罗信毅冯亮莫静华韦庆兴黄盛武陆超
Owner GUANGXI NON FERROUS METALS GROUP HUIYUANMENGYE
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