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Preparation method for alumina wear-resistant ceramic ball

A technology of wear-resistant ceramics and alumina, applied in the field of ceramic balls, can solve the problems of poor appearance color, general wear resistance, and large resource consumption, and achieve the effects of low cost, good sphericity, and high packing density

Active Publication Date: 2019-01-29
FOSHAN CERAMICS RES INST GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The alumina wear-resistant ceramic ball produced by calcining bauxite has a yellow appearance, relatively poor product quality, poor adaptability, and general wear resistance. It is only suitable for grinding occasions with low product appearance quality requirements, and its resource consumption Large, since bauxite is a non-renewable natural resource, it has high impurity content and poor appearance color

Method used

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  • Preparation method for alumina wear-resistant ceramic ball
  • Preparation method for alumina wear-resistant ceramic ball

Examples

Experimental program
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preparation example Construction

[0041] figure 1 It is the flow chart of the preparation method of the present invention, and the preparation method of a kind of alumina wear-resistant ceramic ball provided by the present invention comprises:

[0042] S101: Weighing the raw materials required for manufacturing alumina wear-resistant ceramic balls.

[0043] The main raw material formula required for the manufacture of alumina wear-resistant ceramic balls is as follows:

[0044] ceramic stick waste;

[0045] source of zirconium;

[0046] Aluminum oxide powder;

[0047] dolomite;

[0048] Bentonite.

[0049] Wherein, the zirconium source is zirconium corundum brick waste or waste zirconium powder.

[0050] There are two main raw material formulas required for the manufacture of alumina wear-resistant ceramic balls in the present invention, one of which is mainly made of the following raw materials in weight percentage;

[0051] Ceramic roller waste 70-90%;

[0052] Zirconium corundum brick waste 5-15%; ...

Embodiment 1

[0128] Weighing raw materials 70% ceramic roller waste, 13% zirconium corundum brick waste, 8% alumina powder, 6% dolomite, 3% bentonite;

[0129] Put the raw material into a ball mill and mill it for 40 hours to obtain a slurry with a grinding particle size of ≦5 μm and a moisture content of 30%, and the fluidity of the slurry is controlled at about 30 seconds;

[0130] The slurry is stirred and removed by an iron remover to obtain a preliminary treated slurry;

[0131] Transport the preliminarily treated mud to a spray drying tower for spray powder processing to obtain powder for the manufacture of alumina wear-resistant ceramic balls, wherein the particle size range of the powder is D>40 mesh, 1%, 40 Mesh ≦ D ≦ 60 mesh is 37%, 60 mesh < D ≦ 80 mesh is 38%, 100 mesh < D is 14%;

[0132] Put the powder into the ball machine and roll it into ceramic balls;

[0133] The ceramic balls are placed in a kiln for firing at a firing temperature of 1200-1500° C. to obtain alumina we...

Embodiment 2

[0135] Weighing raw materials 78% ceramic roller waste, 8% zirconium corundum brick waste, 5% alumina powder, 4% dolomite, 2% bentonite;

[0136] Put the raw material into a ball mill and mill it for 55 hours to obtain a slurry with a grinding particle size of ≦4 μm and a moisture content of 35%, and the fluidity of the slurry is controlled at about 35 seconds;

[0137] The slurry is stirred and removed by an iron remover to obtain a preliminary treated slurry;

[0138] Transport the preliminarily treated slurry to a spray drying tower for spray powder processing to obtain powder for manufacturing alumina wear-resistant ceramic balls, wherein the particle size range of the powder is D>40 mesh, 0.5%, 40 Mesh ≦ D ≦ 60 mesh is 42%, 60 mesh < D ≦ 80 mesh is 33%, 100 mesh < D is 10%;

[0139] Put the powder into the ball machine and roll it into ceramic balls;

[0140] The ceramic balls are placed in a kiln for firing at a firing temperature of 1200-1500° C. to obtain alumina wea...

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Abstract

The invention discloses a preparation method for an alumina wear-resistant ceramic ball. The preparation method comprises the following steps: weighing raw materials needed for preparation of the alumina wear-resistant ceramic ball; grinding the raw materials in a ball mill through ball milling to obtain slurry, and controlling the fluidity of the slurry to be 20-40 seconds; subjecting the slurryto stirring and iron removal via an iron separator to obtain preliminarily-treated mud; conveying the preliminarily-treated mud to a spray drying tower for spraying powdering treatment so as to obtainpowder used for the preparation of the alumina wear-resistant ceramic ball, wherein the particle diameter ranges of the powder are that less than 2% of the powder has a particle diameter D of less than 40 meshes, 35-50% of the powder has a particle diameter D of no less than 40 meshes and no more than 60 meshes, 25-40% of the powder has a particle diameter D of more than 60 meshes and no more than 80 meshes, and 15% of the powder has a particle diameter D of more than 100 meshes; putting the powder into a ball forming mill for rolling to obtain a porcelain ball; and sintering the porcelain ball in a kiln at a sintering temperature of 1,200-1,500 DEG C so as to obtain the alumina wear-resistant ceramic ball. By controlling the particle diameter ratio of the powder, the produced alumina wear-resistant ceramic ball has a smooth surface, good sphericity and high dimensional precision, and difference between different balls is extremely small.

Description

technical field [0001] The invention relates to the technical field of ceramic balls, in particular to a preparation method of alumina wear-resistant ceramic balls. Background technique [0002] Alumina wear-resistant ceramic balls are widely used in ceramics, glass, enamel, pigments, chemicals and other industries. They are grinding balls in various mill crushing equipment. They have high strength, high density, low wear, corrosion resistance and strong applicability. High crushing efficiency. [0003] At present, the preparation methods of alumina wear-resistant ceramic balls include two kinds: [0004] 1. Use alumina powder as the main raw material and calcinate it. The alumina wear-resistant ceramic ball produced by calcining alumina powder has a white appearance, good product quality, good adaptability, good wear resistance, less or no pollution to the ground product, and is mainly used for grinding ceramic glazes. Efficient and clean wear-resistant materials are req...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132
CPCC04B33/1324C04B2235/321Y02P40/60
Inventor 冯斌张脉官唐涛李纲举
Owner FOSHAN CERAMICS RES INST GRP CO LTD
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