Middle-sized aluminum mill ball and preparation method
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A technology of grinding balls and aluminum, applied in chemical instruments and methods, and other chemical processes, can solve problems such as unsatisfactory performance and single use, reduce production costs and labor intensity, simple molding process, and reasonable formula Effect
Inactive Publication Date: 2012-03-28
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
[0020] Embodiment 1: A kind of aluminum grinding ball and its preparation method
[0021] 1. Composition of raw materials: expressed in weight percentage, cooked bauxite 88%, dolomite 4%, porcelain stone 4%, clay 3%, sodium humate 1%. The cooked bauxite includes three types of cooked bauxite with aluminum contents of 72-73%, 74-75%, and 77-78%, and their weight ratios are 34%, 21% and 33% respectively.
[0022] Raw material performance requirements:
[0023] Dolomite: MgO+CaO>38%, China stone: Na content>7%, clay: aluminum content>20%.
[0024] 2. The preparation method comprises the following steps:
[0025] (1) Grinding: weigh according to the composition of the raw materials, crush the bulk raw materials to particles below 3mm, add them to the ball mill, add water according to the weight ratio of raw materials and water at a weight ratio of 7:3, and add 3-5‰ of the total amount of raw materials to disperse Sodium tripolyphosphate, 3-5‰ of polyvinyl alcohol solution, grin...
Embodiment 2
[0029] Embodiment 2: Aluminum grinding ball and preparation method thereof are basically the same as Example 1, the difference being:
[0030] Raw materials of Chalco grinding balls: 88% cooked bauxite, 3% dolomite, 4% porcelain stone, 3% clay, and 2% sodium humate. The cooked bauxite includes three types of cooked bauxite with aluminum content of 72%, 74% and 77%, and their weight ratios are 34%, 21% and 33% respectively.
Embodiment 3
[0031] Embodiment 3: Aluminum grinding ball and preparation method thereof are basically the same as Example 1, except that:
[0032] Raw materials of Chalco grinding balls: 88% cooked bauxite, 5% dolomite, 2% porcelain stone, 4% clay, and 1% sodium humate. The cooked bauxite includes three types of cooked bauxite with an aluminum content of 73%, 75% and 77%, and their weight ratios are 34%, 21% and 33% respectively.
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Abstract
The invention relates to a middle-sized aluminum mill ball and a preparation method. Materials are expressed by weight percentage, wherein, sintered bauxite accounts for 85 to 90 percent, dolomite accounts for 2 to 5 percent, chinastone accounts for 2 to 5 percent, clay accounts for 2 to 5 percent, and sodium humate accounts for 0.5 to 2 percent. The preparation method comprises the steps as follows: the materials are weighed according to material ingredients, and are added in a ball mill after being crushed; water is added in the ball mill, dispersing agent sodium tripolyphosphate accounting for 3 to 5 thousandths of total weight of the materials and polyvinyl alcohol solution accounting for 3 to 5 thousandths of total weight of the materials are added in the ball mill additionally, and grinding and staleness are carried out; pelletization is carried out through high tower spray drying, and powders are formed through isostatic pressing so as to obtain blanks; and the blanks are put in a kiln so as to obtain finished products through high temperature burning. The middle-sized aluminum mill ball and the preparation method adopt a series of strict manufacturing processes such as pulping, milling, forming, burning and the like, so that the obtained products have the characteristics of high strength, abrasion resistance, high temperature resistance, high pressure resistance, acid and alkali erosion resistance, low water absorption, stable chemical property and the like. The content of Al2O3 in the products is more than 70 percent, the volume density ranges from 3.0 to 3.03 g / cm<3>, the abrasion value is less than or equal to 0.3 thousandths, the compressive strength is greater than 1800 MPa, the volume density is high, the abrasion value is small, and the performances of the middle-sized aluminum mill ball are better than those of like products.
Description
technical field [0001] The invention relates to a grinding material, in particular to a medium aluminum grinding ball and a preparation method thereof. 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. 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 bi...
Claims
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Application Information
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