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Preparation method of high-performance high alumina ceramic grinding ball

A high-alumina ceramic, high-performance technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problem of low strength of ceramic balls, achieve the effects of simple formula, low production cost, and increased strength

Active Publication Date: 2018-05-15
济南泉润陶瓷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, the present invention also provides a method for preparing the above-mentioned high-performance high-alumina ceramic grinding balls, and discloses a new ball-making method, which is applicable to all roll-formed balls and solves the problem that the strength of existing roll-formed ceramic balls is generally low. lower question

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  • Preparation method of high-performance high alumina ceramic grinding ball

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Comparison scheme
Effect test

Embodiment 1

[0024] The raw materials are composed by weight percentage: alumina powder (grain size 0.6-1.0μm) 86.3%, light calcium carbonate 1.8%, magnesium carbonate 0.55%, silicon dioxide 11.3%, titanium dioxide 0.05%; auxiliary raw material ammonium polyacrylate is added The amount is 1.0% of the total mass of the above-mentioned raw materials.

[0025] The preparation steps are as follows:

[0026] 1) Weigh the raw materials with a total weight of 200kg according to the proportion, put them into the ball mill, then add 133kg of distilled water and 2.4kg of ammonium polyacrylate to the ball mill, wet mill for 20 hours, and use a laser particle size analyzer to measure the particle size of the slurry as the median diameter After 0.3-0.6 μm, stop the grinding and discharge the material, spray dry with a centrifugal spray drying tower to form a spray-dried powder, and then the spray-dried powder is vibrated and screened to take the spray-dried powder with a particle size of 180-200 mesh a...

Embodiment 2

[0030] The raw materials are composed by weight percentage: alumina powder (grain size 0.6-1.0μm) 89%, light calcium carbonate 1.5%, magnesium carbonate 0.8%, silicon dioxide 8.66%, titanium dioxide 0.04%; auxiliary raw material ammonium polyacrylate is added The amount is 1.2% of the total mass of the above-mentioned raw materials.

[0031] The preparation steps are as follows:

[0032] 1) Weigh the raw materials with a total weight of 200kg according to the proportion, put them into the ball mill, then add 133kg of distilled water and 2.4kg of ammonium polyacrylate to the ball mill, wet mill for 20 hours, and use a laser particle size analyzer to measure the particle size of the slurry as the median diameter After 0.3-0.6 μm, stop the grinding and discharge the material, spray dry with a centrifugal spray drying tower to form a spray-dried powder, and then the spray-dried powder is vibrated and screened to take the spray-dried powder with a particle size of 180-200 mesh as s...

Embodiment 3

[0036] The raw materials are composed by weight percentage: alumina powder (grain size less than 1.5μm) 93%, light calcium carbonate 1.2%, magnesium carbonate 1.2%, silicon dioxide 4.6%, titanium dioxide 0.03%; auxiliary raw material ammonium polyacrylate added 1.5% of the total mass of the above raw materials.

[0037] The preparation steps are as follows:

[0038] 1) Weigh the raw materials with a total weight of 200kg according to the proportion, put them into the ball mill, then add 133kg of distilled water and 2.4kg of ammonium polyacrylate to the ball mill, wet mill for 20 hours, and use a laser particle size analyzer to measure the particle size of the slurry as the median diameter After 0.3-0.6 μm, stop the grinding and discharge the material, spray dry with a centrifugal spray drying tower to form a spray-dried powder, and then the spray-dried powder is vibrated and screened to take the spray-dried powder with a particle size of 180-200 mesh as seeds;

[0039] 2) The...

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Abstract

The invention discloses a high-performance high alumina ceramic grinding ball and a preparation method of the grinding ball. The grinding ball comprises the following raw materials by weight percentage: 84-93% of aluminum oxide, 4-12% of silicon dioxide, 1.8-2.5% of light calcium carbonate, 0.25-0.6% of magnesium oxide and 0.03-0.05% of titanium dioxide. The preparation method comprises the stepsof mixing fine-grained aluminum oxide and the other raw materials according to the proportion, performing wet milling in a ball mill, performing spray drying with a centrifugal spray drying tower after a particle size tested by a laser particle size analyzer is acceptable, taking spray drying powder as a seed, treating other spray drying powder as powder, and performing rolling to form the ball. The used raw materials are ordinary and easy to obtain; the preparation method is simple to operate and mild in condition; the interior and the exterior of the produced ball are consistent; the ball ishigh in strength and low in abrasion; a ball breaking rate in a high-speed grinding use process is reduced; the abrasion is not aggravated with the service time; a service life of the grinding ball is greatly prolonged; and the production cost is lowered.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials (ceramics), and relates to a high-performance high-alumina ceramic grinding ball and a preparation method thereof. Background technique [0002] The ball mill is the key equipment for crushing the material after it is crushed. It is widely used in the production industries of cement, silicate products, new building materials, refractory materials, fertilizers, ferrous metal beneficiation and glass ceramics. It can be used for dry or wet grinding of various ores and other grindable materials. It generally achieves the purpose of refining materials through extrusion, impact, shearing, grinding, etc. between grinding media. Grinding media mainly include: natural grinding media such as pebbles; artificial grinding media such as glass balls, ceramic balls, and steel balls. [0003] In recent years, with the continuous development of industry, the use of various powders has been increas...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/622C09K3/14
CPCC04B35/10C04B35/622C04B2235/3206C04B2235/3208C04B2235/3232C04B2235/3418C09K3/1409
Inventor 侯宪钦王志青刘永
Owner 济南泉润陶瓷科技有限公司
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