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Ceramic Grinding Body for Gypsum Grinding

A grinding body and ceramic technology, applied in the field of functional ceramics, can solve the problems of energy consumption and large loss, and achieve the effects of low wear rate, high hardness and light weight

Inactive Publication Date: 2018-04-10
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the cement mill, the ball milling process mainly plays the dual functions of crushing and grinding, while in the gypsum grinding process, since the calcined gypsum particle size is small (generally greater than 50 mesh), the grinding function plays a major role, so it has a strong impact force and high The dense metal grinding body consumes a lot of energy and loss during use, and cannot exert its more powerful effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0013] The ceramic grinding body for gypsum mill is prepared from the following raw materials in weight percentage,

[0014] al 2 o 3 : 75%, SiO 2 : 6.1%, Cr 2 o 3 : 1.1%, TiO 2 : 1.3%, MnO : 1.6%, ZrO 2 : 1.8%, BaO: 1.9%, Sulmanite: 5.8%, ZnO: 2.4%, nano colloidal silicon: 0.3%, cosolvent 2.7%.

[0015] The co-solvent is a combination of albite and MgO, the ratio is 55% and 45%.

[0016] The prepared spherical gypsum grinding body has a bulk density of 3.55g / cm³, a hardness of 9 on the Mohs scale, a monomer strength of 267MPa, and an abrasion loss of 0.05‰.

Embodiment example 2

[0018] The ceramic grinding body for gypsum mill is prepared from the following raw materials in weight percentage,

[0019] al 2 o 3 : 77.5%, SiO 2 : 5.2%, Cr 2 o 3 : 0.8%, TiO 2 : 1.1%, MnO : 1.7%, ZrO 2 : 1.8%, BaO: 1.7%, Solitaire: 4.8%, ZnO: 2.6%, nano colloidal silicon: 0.5%, cosolvent 2.3%.

[0020] The co-solvent is AlF 3 and CaF 2 A combination of 70% and 30%.

[0021] The prepared spherical gypsum grinding body has a bulk density of 3.34g / cm³, a hardness of 9 on the Mohs scale, a monomer strength of 249MPa, and an abrasion loss of 0.08‰.

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Abstract

The invention provides a ceramic grinding body for gypsum, which is mainly prepared from the following raw material components, Al2O3: 62%~83%, SiO2: 5%~8%, Cr2O3: 0.5%~1.8%, TiO2: 1%~ 1.45%, MnO: 1.51%~1.75%, ZrO2: 1.6%~3.4%, BaO: 1%~3%, Solitaire: 4.6%~7%, ZnO: 2%~2.8%, nano colloidal silicon: 0.5%~1.1%, co-solvent 2%~6%. The ceramic grinding body for gypsum milling of the present invention has light weight and low wear rate, can greatly reduce grinding energy consumption, prolong the service life of the grinding body, and reduce costs; there is no impurity metal iron ion doping in the grinding process, and the quality of building gypsum powder is not affected. Whiteness and strength; ceramic grinding body can also reduce electrostatic adsorption, which is beneficial to improve grinding efficiency.

Description

technical field [0001] The invention relates to a ceramic grinding body for gypsum grinding, which belongs to the field of functional ceramics. Background technique [0002] Therefore, low-density abrasives with low energy consumption, low self-weight and low wear rate are being studied by more and more scientific researchers. Chinese invention patents with application numbers 201510077860.X, 201510077859.7, and 2015100358580.8 provide different preparation methods and production processes of low-density grinding bodies, which are mainly used in cement mills. In the cement mill, the ball milling process mainly plays the dual functions of crushing and grinding, while in the gypsum grinding process, since the calcined gypsum particle size is small (generally greater than 50 mesh), the grinding function plays a major role, so it has a strong impact force and high The dense metal grinding body consumes a lot of energy and loss during use, and cannot exert its more powerful effe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/10
CPCC04B35/10C04B2235/3215C04B2235/3232C04B2235/3241C04B2235/3244C04B2235/3262C04B2235/3284C04B2235/3418C04B2235/3454C04B2235/77C04B2235/96
Inventor 张国辉温海滨王慧
Owner UNIV OF JINAN
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