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A grinding ball, high-strength technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of single use and unsatisfactory performance, and achieve the effect of simple molding process, breaking limitations, and low water absorption
Inactive Publication Date: 2012-06-27
HENAN GOLD SOURCE NEW MATERIAL TECH
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The product obtained by this method has a single use and unsatisfactory performance.
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Embodiment 1
[0022] Embodiment 1: a kind of high-strength medium aluminum grinding ball with glue
[0023] 1. Composition of raw materials: expressed in weight percentage, 76% of cooked bauxite, 12% of raw bauxite, 5% of clay, 3% of feldspar, 1% of talc, 2% of calcium carbonate, 1% of barium carbonate. The slaked bauxite includes two kinds of slaked bauxite with aluminum content of 72-73% and 77-78%, and their weight ratios are 32% and 44% respectively.
[0024] 2. The preparation method includes the following steps:
[0025] (1) Grinding: Weigh cooked bauxite, raw bauxite, clay, feldspar, talc, calcium carbonate, barium carbonate, crush the bulk raw material to particles below 3mm, add it to the ball mill, press (cooked) Bauxite, raw bauxite, clay, feldspar, talc, calcium carbonate, barium carbonate) raw materials, water in a weight ratio of 5:2, add water, plus sodium tripolyphosphate, 3-5‰ of the total weight of the above-mentioned raw materials -5‰ polyvinyl alcohol solution, ground ...
Embodiment 2
[0030] Embodiment 2: It is basically the same as Embodiment 1, and the difference is:
[0031] The raw materials of the aluminum grinding ball: 70% cooked bauxite, 15% raw bauxite, 5% clay, 3% feldspar, 1% talc, 4% calcium carbonate, 2% barium carbonate, plus the total weight of raw materials 4% ‰ sodium tripolyphosphate, 4‰ polyvinyl alcohol solution. The slaked bauxite includes two kinds of slaked bauxite with aluminum content of 72-73% and 77-78%, whose weight ratios are 32% and 38% respectively.
Embodiment 3
[0032] Embodiment 3: It is basically the same as Embodiment 1, and the difference is:
[0033] Raw materials of aluminum grinding ball: 80% cooked bauxite, 10% raw bauxite, 4% clay, 2% feldspar, 2% talc, 1% calcium carbonate, 1% barium carbonate, plus the total weight of raw materials 5% ‰ of sodium tripolyphosphate, 5‰ of polyvinyl alcohol solution. The slaked bauxite includes two kinds of slaked bauxite with aluminum content of 72-73% and 77-78%, whose weight ratios are 35% and 45% respectively.
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Abstract
The invention relates to a grinding material, in particular to a high-strength aluminum grinding ball with glue, which has the raw materials of: 70-80 percent of mature bauxite, 10-15 percent of immature bauxite, 4-7 percent of clay, 2-5 percent of feldspar, 0.5-2 percent of talcum powder, 1-5 percent of calcium carbonate, 0.5-2 percent of barium carbonate, dispersing agent-sodium tripolyphosphate accounting for 3-5 thousandth of the total weight of the raw materials, and adhesive accounting for 3-5 thousandth of the total weight of the raw materials. A preparation method comprises the following steps of grinding, pelleting, molding, burning and the like, wherein the grinding time is 20-30h, slurry is subjected to spray drying granulation through a high tower when in pelleting, the molding pressure is 320 MPa, the burning temperature is 1255 DEG C, heat preservation is carried out for 1h, and the slurry is air cooled to be room temperature and is output from a kiln. The product provided by the invention has high strength, wear resistant, high temperature and pressure resistance, acid and alkali erosion resistance, low water absorption and stable chemical properties. The content of AL2O3 in the product is more than 68 percent, the volume density is 3.0-3.03g / cm<3>, the wear loss is less than or equal to 0.25 thousandth, the compression strength is larger than 1850 MPa, and various performances are superior to those of similar products.
Description
technical field [0001] The invention relates to a grinding material, in particular to a glue-added high-strength medium-aluminum grinding ball. Background technique [0002] Grinding media are widely used in the grinding and processing of raw materials in various industries such as minerals, ceramics, paints, and cosmetics. They are a necessity in many industries and have a wide market. At present, the performance of grinding medium balls used by domestic wall and floor tile enterprises is not satisfactory, and there are disadvantages such as poor wear resistance, fragility, and more impurities. It is necessary to improve the production process, improve product performance, and reduce equipment maintenance rates. [0003] After retrieval, the application document with the application number 201010532719.1 discloses a preparation method of grinding balls for ball mills. During the preparation, tungsten and molybdenum powders are used as the main raw materials, together with b...
Claims
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Application Information
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