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Method for improving appearance quality of inertial porcelain ball

A technology of appearance quality and inert ceramic balls, which is applied in the field of new materials, can solve problems such as easy cracks and insufficient sphericity, and achieve the effects of reducing scrap rate, solving surface cracks, and reducing appearance quality

Active Publication Date: 2014-06-11
JINGANG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practice has proved that this method can solve the phenomenon of ball delamination and surface foaming after calcination in the production of inert ceramic balls by wet ball milling process; it can solve the problem of insufficient sphericity of the product and easy cracks after calcination in dry ball milling process of inert ceramic balls

Method used

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  • Method for improving appearance quality of inertial porcelain ball
  • Method for improving appearance quality of inertial porcelain ball
  • Method for improving appearance quality of inertial porcelain ball

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Main ingredients (parts by weight): 88 parts of industrial alumina powder, 5 parts of kaolin; composite sintering aids (parts by weight): 2 parts of calcium carbonate, 2.5 parts of talc, 2.5 parts of spodumene, using wet ball milling process Ball milling: glass balls are used as the grinding medium, and the mass ratio of material: ball: water = 1:2.5:0.5.

[0043] (2) Auxiliary materials (parts by weight): 68 parts of industrial alumina powder, 20 parts of calcined alumina powder, 5 parts of kaolin; composite sintering aids (parts by weight): 2 parts of calcium carbonate, 2.5 parts of talc, 2.5 parts of spodumene ;

[0044](3) The auxiliary materials and composite sintering aids in step (2) are put into a continuous ball mill for dry grinding. The ball milling process parameters are as follows: use glass balls as the grinding medium, and the material ratio by mass: balls = 1:3, ball mill cylinder The length is 7.48m, the diameter of the cylinder is 1.5m, and the ou...

Embodiment 2

[0050] (1) Main ingredients (parts by weight): 89 parts of industrial alumina powder, 7 parts of kaolin; composite sintering aids (parts by weight): 2 parts of calcium carbonate, 1.5 parts of talc, 0.5 parts of spodumene; wet grinding by traditional technology . Glass ball stone is used as the grinding medium, and the mass ratio of material: ball: water = 1:3:0.5.

[0051] (2) Auxiliary materials (parts by weight): 69 parts of industrial alumina powder, 20 parts of calcined alumina powder, 7 parts of kaolin; composite sintering aids: 1 part of calcium carbonate, 1.5 parts of talc, 1.5 parts of spodumene;

[0052] (3) The auxiliary materials and composite sintering aids in step (2) are put into a continuous ball mill for dry grinding. The ball milling process parameters are as follows: use glass balls as the grinding medium, and the material ratio by mass: balls = 1:3, ball mill cylinder The length is 7.48m, the diameter of the cylinder is 1.5m, and the output is 2-3 tons per ...

Embodiment 3

[0058] (1) Main ingredients (parts by weight): 75 parts of industrial alumina powder, 21.5 parts of kaolin; composite sintering aids (parts by weight): 1 part of calcium carbonate, 1.5 parts of talc, 1 part of spodumene; dry grinding by traditional technology . Glass ball stone is used as the grinding medium, and the mass ratio of material:ball=1:2.8.

[0059] (2) Auxiliary materials (parts by weight): 65 parts of industrial alumina powder, 10 parts of calcined alumina powder, 20 parts of kaolin; composite sintering aids (parts by weight): 1.5 parts of calcium carbonate, 2.5 parts of talc, 1 part of spodumene ;

[0060] (3) The auxiliary materials and composite sintering aids in step (2) are put into a ball mill for wet grinding. The ball milling process parameters are as follows: use glass ball stone as the grinding medium, the cylinder length of the ball mill is 4.0m, the cylinder diameter is 3.0m, and the material: ball :Water=1:2.5:0.5, ball mill for 12h, load 15 tons of...

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Abstract

The invention discloses a method for improving appearance quality of an inertial porcelain ball, and belongs to the technical field of novel materials. The method disclosed by the invention divides conventional ball-billet rolling process into two stages, wherein in the first stage, ingredients are grinded by a dry method or a wet method to roll the ball-billet till the size of the ball-billet is 1-3mm smaller than target size; and in the second stage, powder compounded by dry and wet grinding is adopted, and based on the ball-billet formed in the first stage, auxiliary materials are added to prepare compound powder based on the dry or wet grinded powder, and a novel surface wrapping layer is formed by rolling. Practices show that the method can solve the problem of ball layering in production of the inertial ball by the wet method ball-milling process and surface blistering after calcining. The method solves the problem that the degree of sphericity of the product in production of the inertial ball by the wet method ball-milling process is insufficient, and cracks are easy to generate after calcining. In addition, detection shows that the integral physical property of the product is further improved while the appearance quality of the inertial porcelain ball is improved at the same time.

Description

technical field [0001] The invention relates to a method for improving the appearance quality of an inert ceramic ball, which belongs to the technical field of new materials. Background technique [0002] Alumina inert ceramic balls have the characteristics of high mechanical strength, high temperature resistance, oxidation resistance, wear resistance, chemical corrosion resistance, good thermal shock resistance and extremely low chemical activity. They are widely used in petroleum, chemical and other related industries. In the reactor, it acts as a support, a cushion material covering the catalyst and a tower packing, etc. When used as a catalyst carrier, its main function is to increase the distribution point of gas or liquid, improve the catalytic efficiency, and effectively protect the catalyst from being polluted by impurities in oil products, causing catalyst coking and poisoning, and prolonging the service life of the catalyst; as a tower packing At the same time, it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/10C04B35/622
Inventor 赵友谊王琦
Owner JINGANG NEW MATERIALS
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