A kind of alumina wear-resistant ceramic ball and preparation method thereof
A technology of wear-resistant ceramics and alumina, applied in the field of ceramic balls, can solve problems such as high impurity content, poor product quality, and poor appearance color, and achieve the effects of high whiteness, low cost, and low wear
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[0122] Correspondingly, the present invention also provides a preparation method of alumina wear-resistant ceramic balls, figure 1 For the preparation of the process flow diagram, the following steps are included:
[0123] S101: Weighing the raw materials required for manufacturing alumina wear-resistant ceramic balls.
[0124] The main raw material formula required for the manufacture of alumina wear-resistant ceramic balls is as follows:
[0125] Ceramic roller waste 70-90%;
[0126] Zirconium corundum brick waste 5-15%;
[0127] Aluminum oxide powder 1-10%;
[0128] Dolomite 2-8%;
[0129] Bentonite 1-4%.
[0130] The present invention uses ceramic roller bar waste and zirconium corundum brick waste as main raw materials, and adds a small amount of alumina powder and chemical raw materials, not only reusing waste materials, but also reducing the cost of ceramic balls.
[0131] In addition, the alumina wear-resistant ceramic ball produced by using ceramic roller waste ...
Embodiment 1
[0170] Weighing raw materials 70% ceramic roller waste, 13% zirconium corundum brick waste, 8% alumina powder, 6% dolomite, 3% bentonite;
[0171] 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;
[0172] The slurry is stirred and removed by an iron remover to obtain a preliminary treated slurry;
[0173] 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%;
[0174] Put the powder into the ball machine and roll it into ceramic balls;
[0175] The ceramic balls are placed in a kiln for firing at a firing temperature of 1200-1500° C. to obtain alumina we...
Embodiment 2
[0177] Weighing raw materials 78% ceramic roller waste, 8% zirconium corundum brick waste, 5% alumina powder, 4% dolomite, 2% bentonite;
[0178] 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;
[0179] The slurry is stirred and removed by an iron remover to obtain a preliminary treated slurry;
[0180] 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%;
[0181] Put the powder into the ball machine and roll it into ceramic balls;
[0182] 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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