Grinding aid used for refractory material and preparation method thereof

A technology of refractory materials and grinding aids is applied in the field of refractory materials to achieve the effects of reducing grinding costs, reducing power consumption and improving grinding efficiency.

Inactive Publication Date: 2009-11-11
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the application of grinding aids in the field of refractory materials is still relatively small, relatively simple, just adding simple solid grinding aids, although the efficiency has also increased, but generally less than 10%

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A grinding aid for refractory materials and a preparation method thereof. The grinding aid is composed of 42-52 wt% oleic acid, 25-32 wt% mother liquor and 22-30 wt% triisopropanolamine.

[0014] The preparation method of the grinding aid is as follows: according to the above-mentioned composition and content, first add oleic acid into the mother liquor, stir at room temperature for 15-30 minutes; then add triisopropanolamine, and stir at room temperature for 10-20 minutes That is, the refractory material grinding aid is obtained.

[0015] The preparation method of the mother liquor is: under normal temperature conditions, first add 28-35wt% glycerol and 4-6wt% ethylene glycol into the container, stir for 10-20min; then add 2.5%-3wt% lignosulfonic acid Calcium and 2.4-3wt% sodium dodecylbenzenesulfonate are stirred for 10-20 minutes; then 6.0-8.0wt% ammonium acetate and 45-56wt% ethanol are added and stirred for 10-20 minutes to obtain the mother liquor.

[0016] Grind...

Embodiment 2

[0018] A grinding aid for refractory materials and a preparation method thereof. The grinding aid is composed of 55-65 wt% oleic acid, 28-36 wt% mother liquor and 5-10 wt% triisopropanolamine.

[0019] The preparation method of this grinding aid is with embodiment 1.

[0020] The preparation method of the mother liquor of this embodiment is: under normal temperature conditions, first add 25-34wt% glycerol and 3.5-5.6wt% ethylene glycol in the container, stir for 10-20min; then add 2.0%-2.8wt% Calcium lignosulfonate and 1.5-2.6wt% sodium dodecylbenzenesulfonate, stirred for 10-20min; then added 5.0-7.5wt% ammonium acetate and 50-62wt% ethanol, stirred for 10-20min Get the mother liquor.

[0021] Dolomite is ground in a planetary ball mill. Under the same conditions, the grinding result without grinding aid is: d (0.5) : 11.810~12.436 micron; Add the grinding aid prepared by the present embodiment to grind dolomite and the result is: d (0.5) : 6.902 ~ 7.941 microns, storage p...

Embodiment 3

[0023] A grinding aid for refractory materials and a preparation method thereof. The grinding aid is composed of 50-60 wt% oleic acid, 30-38 wt% mother liquor and 10-15 wt% triisopropanolamine.

[0024] The preparation method of this grinding aid is with embodiment 1.

[0025] The mother liquor preparation method of this embodiment is: under normal temperature conditions, first add 23~32wt% glycerol and 3.0~4.1wt% ethylene glycol in the container, stir for 10~20min; then add 1.0%~2.2wt% Calcium lignosulfonate and 1.2-1.8wt% sodium dodecylbenzenesulfonate, stirred for 10-20min; then added 3.6-5.2wt% ammonium acetate and 56-68wt% ethanol, stirred for 10-20min Get the mother liquor.

[0026] Grinding mullite in a planetary mill, under the same conditions, the grinding result without grinding aid is: d (0.5) : 11.033~11.980 micron; add the grinding aid prepared by the present embodiment to grind mullite and the result is: d (0.5) : 6.034 ~ 6.538 microns, shelf life of more than...

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Abstract

The invention relates to a grinding aid used for refractory material. The adopted technical proposal is as follows: the grinding aid comprises the following components by content: 42-70 wt% of oleic acid, 20-38 wt% of mother solution and 5-30 wt% of triisopropanolamine; based on the components and contents, first the oleic acid is added to the mother solution and stirred for 15-30min at room temperature; and then the triisopropanolamine added, and the mixed solution is stirred for 10-20min at room temperature to consequently obtain the grinding aid used for refractory material. The grinding aid can remove the surface static electricity of the refractory material in grinding process, solve the phenomenon that the refractory material adheres to a can or a ball, improve the grinding efficiency by about 20-30 percent and save energy. Coated on the surface of the refractory material, a layer of macromolecular coating film can play a role of preventing hydration, thus extending the application range of the refractory material.

Description

technical field [0001] The invention belongs to the technical field of refractory materials. Specifically relates to a grinding aid for refractory materials and a preparation method thereof. Background technique [0002] Usually, in the grinding process of refractory materials, the friction between materials, materials and grinding media such as steel balls, corundum balls or porcelain balls will make the materials charged with static electricity, making the materials adsorb on the surface of the grinding media, resulting in The encapsulation phenomenon reduces the efficiency of ball milling, reduces the output and quality of magnesia, and increases the power consumption per unit of magnesia output. [0003] During the grinding process of materials, adding a small amount of additives (gas, liquid or solid substances) can significantly improve the grinding efficiency or reduce energy consumption. This chemical additive is usually called a grinding aid. There are many classi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/18C04B35/632C04B103/52
Inventor 顾华志郑化吴峰汪厚植段辉杜博
Owner WUHAN UNIV OF SCI & TECH
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