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Zirconium oxide-corundum composite ceramic body for cement grinding mill and production process of zirconium oxide-corundum composite ceramic body

A technology of composite ceramics and production technology, which is applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of low grinding efficiency, high cost, and high wear of glass balls, and achieve light weight, long replacement cycle, and low energy consumption. Effect

Inactive Publication Date: 2017-03-08
洛阳鹏飞耐磨材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-end grinding materials such as zirconia ceramic grinding balls and zirconium silicate ceramic grinding balls have high specific gravity and good performance, but the cost is relatively high; while other ordinary ceramic grinding balls and glass balls have low grinding efficiency, high wear and low strength.

Method used

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  • Zirconium oxide-corundum composite ceramic body for cement grinding mill and production process of zirconium oxide-corundum composite ceramic body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The parts by weight and the addition ratio of the raw materials of the zirconia-corundum composite ceramic body are: 97 parts of alumina micropowder with a particle size of 0.1 μm, 0.1-0.5 parts of alumina whiskers with an average diameter of 0.5 μm and an average length of 8 μm Parts, 0.4-2.5 parts of nano-zirconia with a particle size of 4nm, talc and Y 2 o 3 0.05-0.1 parts (talc: Y 2 o 3 =1:1).

[0051] First, 97 parts of alumina fine powder with a particle size of 0.1 μm, 0.1-0.5 parts of alumina whiskers with an average diameter of 0.5 μm and an average length of 8 μm, and 0.4-2.5 parts of nano-zirconia with a particle size of 4 nm, Talc and Y 2 o 3 0.05-0.1 parts (talc: Y 2 o 3 =1:1) Put it into the ball mill, add water for wet grinding, run for 30-45 hours, sieve the mill through 0.063mm, put it into the mud pool, stir and stale for 36-50h, and then remove iron to get a slurry with a water content of 60% , and then input into the spray drying tower for sp...

Embodiment 2

[0053] The parts by weight and the addition ratio of the raw materials of the zirconia-corundum composite ceramic body are: 99 parts of alumina micropowder with a particle size of 2 μm, 0.3 parts of alumina whiskers with an average diameter of 2 μm and an average length of 100 μm. 0.6 parts of 60nm nano zirconia, Y 2 o 3 0.1 part.

[0054] First, 99 parts of alumina micropowder with a particle size of 2 μm, 0.3 parts of alumina whiskers with an average diameter of 2 μm and an average length of 100 μm, and 0.6 parts of nano-zirconia with a particle size of 60 nm, Y 2 o 3 Put 0.1 part into the ball mill, add water for wet milling, run for 30-45 hours, sift out the mill through 0.063mm, put it into the mud pool and stir for 36 hours, then remove iron to get a slurry with a water content of 60%, and then input it into spray drying The powder is sprayed in the tower, and the dried powder is transported to the large silo to stale for 2-4 days to obtain a powder with a water conte...

Embodiment 3

[0056] The parts by weight and the addition ratio of the raw materials of the zirconia-corundum composite ceramic body are: 98 parts of alumina micropowder with a particle size of 1 μm, 0.1 part of alumina whiskers with an average diameter of 1 μm and an average length of 60 μm, and a particle size of 1 μm. 1.8 parts of 10nm nano zirconia, SiO 2 , CaO, MgO0.1 part (SiO 2 : CaO: MgO =1:1:2).

[0057] First put the above ingredients into the ball mill, add water for wet milling, run for 40 hours, pass through a 0.063mm sieve, put the mill into the mud pool and stir for 50 hours, then remove iron to obtain a slurry with a water content of 60%, and then input it into spray drying The powder is sprayed in the tower, and the dried powder is transported to the large silo to stale for 4 days to obtain a powder with a water content of 2%. The powder is formed into a billet by extrusion molding to obtain a spherical shape with a water content of 1%. Green body: place the spherical gre...

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Abstract

The invention discloses a zirconium oxide-corundum composite ceramic body for a cement grinding mill and a production process of the zirconium oxide-corundum composite ceramic body. The ceramic body comprises alumina micro-powder, alumina whiskers, zirconium oxide and a binding agent. The production process includes: placing the raw materials above into a ball mill for wet milling, sieving, placing into a slurry tank, stirring and aging, removing iron, feeding into a spray drying tower for spraying pulverization, and conveying into a large bin for aging; using an extrusion molding method or an injection molding to prepare the aged powder into bases, feeding the bases into a high-temperature tunnel kiln, performing temperature-gradient sintering, grinding the sintered products, water and boron nitride in a ball mill, discharging, drying and packaging. The spherical ceramic body and the production process thereof have the advantages that the ceramic body is smooth in surface, high in hardness, high in wear resistance, high in impact resistance, low in equivalent abrasion and the like, the service life of the ceramic body is prolonged, production cost is lowered, and production efficiency is increased.

Description

technical field [0001] The invention relates to the field of inorganic non-metallic materials (ceramics), in particular to a zirconia-corundum composite ceramic body for cement mills and a production process thereof. Background technique [0002] Ball mill is widely used in metallurgy, minerals, building materials, chemical industry and other fields, and it is an extremely widely used crushing equipment. Grinding media is the key to crushing materials in the ball mill. The materials are crushed by various complex movements such as rolling, impact, extrusion and friction of the grinding media in the ball mill. Therefore, the quality of grinding media not only directly affects the level of production efficiency, but also affects the quality of products. Grinding media are mainly: ceramic materials and metal steel balls, but metal steel balls are heavy, consume high power during operation, and cause large carbon emissions, which affect energy efficiency and environmental prote...

Claims

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Application Information

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IPC IPC(8): C04B35/81C04B35/10C04B35/64C09K3/14
CPCC04B35/803C04B35/10C04B35/64C04B2235/3208C04B2235/3225C04B2235/3227C04B2235/3232C04B2235/3244C04B2235/3418C04B2235/349C04B2235/6562C04B2235/6567C04B2235/66C04B2235/77C04B2235/94C04B2235/96C09K3/1409
Inventor 贾剑光贾玉川王进伟
Owner 洛阳鹏飞耐磨材料股份有限公司
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