High-infrared-emitting-ability cordierite-spinel ceramic material and preparation method thereof

A technology of infrared emissivity and ceramic materials, which is applied in the field of ceramic material preparation, can solve the problems of complex raw materials, unstable finished product quality, and high cost, and achieve high emissivity, good economic and social benefits, and good thermal shock resistance Effect

Inactive Publication Date: 2015-12-30
射阳县射阳港对虾养殖二公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional ceramic products have complex raw materials, most of which are more than four types, and some even hav

Method used

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  • High-infrared-emitting-ability cordierite-spinel ceramic material and preparation method thereof
  • High-infrared-emitting-ability cordierite-spinel ceramic material and preparation method thereof
  • High-infrared-emitting-ability cordierite-spinel ceramic material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0036] A cordierite-spinel infrared ceramic material with high infrared emissivity is composed of raw materials: 77wt% of fly ash, 13wt% of magnesium oxide and 10wt% of aluminum oxide.

[0037] The manufacture method of the cordierite-spinel infrared ceramic material with above-mentioned high infrared emissivity is as follows:

[0038] 1) Fly ash is dried and ball milled to obtain a powder with a fineness not greater than 30 μm. Fly ash, industrial magnesium oxide, and aluminum oxide are mixed in parts by mass of 77wt%, 13wt%, and 10wt%, respectively, and stirred evenly form a mixture;

[0039] 2) Put the mixture into a ball mill jar, add agate balls, the mass ratio of agate balls to the mixture is 20:1, and add an appropriate amount of ethanol (just make the mixture into a slurry), and then put it on the planetary ball mill Ball mill at a speed of 300r / min for 8 hours, and stop for 20 minutes to cool after grinding for 1 hour; after grinding, pour the raw materials into a be...

Embodiment 2

[0046] A cordierite-spinel infrared ceramic material with high infrared emissivity, the raw materials of which are composed of 70wt% of fly ash, 15wt% of magnesium oxide and 15wt% of aluminum oxide.

[0047] The manufacture method of the cordierite-spinel infrared ceramic material with above-mentioned high infrared emissivity is as follows:

[0048] 1) Fly ash is dried and ball milled to obtain a powder with a fineness not greater than 30 μm. Fly ash, industrial magnesium oxide, and alumina are mixed in parts by mass of 70wt%, 15wt%, and 15wt%, respectively, and stirred evenly form a mixture;

[0049] 2) Put the mixture into a ball mill jar, add agate balls, the mass ratio of agate balls to the mixture is 20:1, and add an appropriate amount of ethanol (just make the mixture into a slurry), and then put it on the planetary ball mill Ball mill at a speed of 350r / min for 7.5 hours, and stop for 20 minutes to cool for every 1 hour; after grinding, pour the raw materials into a be...

Embodiment 3

[0056] A cordierite-spinel infrared ceramic material with high infrared emissivity, the raw materials of which are composed of 65wt% of fly ash, 15wt% of magnesium oxide and 20wt% of aluminum oxide.

[0057] The manufacture method of the cordierite-spinel infrared ceramic material with above-mentioned high infrared emissivity is as follows:

[0058] 1) Fly ash is dried and ball milled to obtain a powder with a fineness not greater than 30 μm. Fly ash, industrial magnesium oxide, and alumina are mixed in parts by mass of 65wt%, 15wt%, and 20wt%, respectively, and stirred evenly form a mixture;

[0059] 2) Put the mixture into a ball mill jar, add agate balls, the mass ratio of agate balls to the mixture is 18:1, and add an appropriate amount of ethanol (just make the mixture into a slurry), and then put it on the planetary ball mill Ball mill at a speed of 400r / min for 7 hours, and stop for 20 minutes to cool after grinding for 1 hour; after grinding, pour the raw materials in...

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Abstract

The invention discloses a high-infrared-emitting-ability cordierite-spinel ceramic material, and belongs to the technical field of preparation of ceramic materials. The high-infrared-emitting-ability cordierite-spinel ceramic material comprises the following raw materials in percentage by mass: 25-80% of pulverous coal, 10-25% of magnesia and 10-55% of alumina. The invention also discloses a preparation method of the material. Costs of the raw materials are greatly reduced, performance of products is excellent, and principal crystalline phases comprise a cordierite phase and a spinel phase. The high-infrared-emitting-ability cordierite-spinel ceramic material has the advantages of high radiance, small thermal expansion coefficient, good thermal shock resistance and the like, and is multifunctional. Sintering temperature is greatly reduced; when the minimum temperature is 1230 DEG C, the infrared ceramic material can be fired, temperature is easy to control, and infrared emitting ability of fired ceramics is quite high, and can be similar to that of a pure cordierite ceramic material. By the preparation method of the high-infrared-emitting-ability cordierite-spinel ceramic material, wastes can be reused and can be changed into things of value, and economic benefit and social benefit are excellent.

Description

technical field [0001] The invention belongs to the technical field of ceramic material preparation, and in particular relates to a cordierite-spinel ceramic material with high infrared emissivity and a preparation method thereof. Background technique [0002] Fly ash is the main solid waste discharged from coal-fired power plants. With the development of the power industry, the discharge of fly ash from coal-fired power plants is increasing year by year. According to statistics, usually for every 4 tons of coal consumed, 1 ton of fly ash will be produced. In 2010, China's coal consumption exceeded 4 billion tons, of which coal consumption in the power industry accounted for more than half. It is conservatively estimated that the output of fly ash in China reached 480 million tons that year, which is equivalent to more than twice the total amount of urban domestic waste in China. In 2011, China's fly ash output reached 498 million tons, a year-on-year increase of 3.75%; i...

Claims

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Application Information

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IPC IPC(8): C04B35/195C04B35/443C04B35/622B09B3/00
Inventor 王占红焦宝祥张勇王雨新徐思睿
Owner 射阳县射阳港对虾养殖二公司
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