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A burner prefabricated part for calcining kiln and its preparation method

A burner, calcining kiln technology, applied in lighting and heating equipment, furnace types, furnaces, etc., can solve the problems of poor thermal shock resistance, no resistance to peeling, poor construction quality, etc., to improve the operation rate, avoid quality segregation, The effect of solving on-site construction weaknesses

Inactive Publication Date: 2016-08-17
重庆市潼南区晨兴铸造厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a prefabricated part of a burner for a calciner kiln and a preparation method thereof in order to solve the defects that the product is not resistant to spalling, poor thermal shock resistance, short life and poor construction quality. The burner requires anti-flaking, long life, high thermal shock stability, convenient construction, stable quality, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1, 16 parts of fused mullite, Si 2 al 4 o 4 N 4 25 parts, Al 3 BC 3 12 parts, 20 parts of zirconium spinel, 3 parts of strontium carbonate powder, 4 parts of vanadium carbide powder, 12 parts of alumina micropowder, 7 parts of high alumina cement, and 1 part of composite powder. Add the admixture, mix well, and then add the aluminum chloride solution. The percentages of the added amounts of the aluminum chloride solution and the admixture to the total weight are as follows: 9% of the aluminum chloride solution and 0.3% of the admixture.

Embodiment 2

[0013] Embodiment 2, 17 parts of fused mullite, Si 2 al 4 o 4 N 4 24 copies, Al 3 BC 3 12 parts, 20 parts of zirconium spinel, 3 parts of strontium carbonate powder, 4 parts of vanadium carbide powder, 12 parts of alumina micropowder, 7 parts of high alumina cement, and 1 part of composite powder. Add the admixture, mix well, and then add the aluminum chloride solution. The percentages of the added amounts of the aluminum chloride solution and the admixture to the total weight are as follows: 9% of the aluminum chloride solution and 0.2% of the admixture.

Embodiment 3

[0014] Embodiment 3, 18 parts of fused mullite, Si 2 al 4 o 4 N 4 23 parts, Al 3 BC 3 12 parts, zirconium spinel 21 parts, strontium carbonate powder 3 parts, vanadium carbide powder 4 parts, alumina micropowder 12 parts, high alumina cement 7 parts, composite powder 0 parts. Add the admixture, mix well, and then add the aluminum chloride solution. The percentages of the added amounts of the aluminum chloride solution and the admixture to the total weight are as follows: 9% of the aluminum chloride solution and 0.3% of the admixture.

[0015] The follow-up preparation process of Examples 1, 2, and 3 is as follows: install the mold, add the stirred mixture, and flatten it by the self-weight and surface tension of the mixture; wipe off the excess material on the surface; The good samples and molds are placed in a 25°C constant temperature room, demoulded after inspection and hardening, and then naturally cured for 48 hours after demoulding; drying: the cured samples are dr...

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PUM

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Abstract

The invention discloses a burner preformed part for a calcining kiln and a preparation method thereof. The preformed part is prepared from fused mullite, Si2Al4O4N4, Al3BC3, zirconium spinel, strontium carbonate powder, vanadium carbide powder, alumina micro-powder, high-alumina cement, composite powder, admixture and aluminum chloride solution. The preformed part is formed by adopting a self flowing pouring method, and is maintained, dried and heated at a high temperature. Compared with traditional castables, the preformed part has the characteristics of self flowing construction, self-defoaming, peeling resistance, high abrasion resistance, long service life and the like, and can be more widely applied to burner preformed parts of calcining kilns in various calcining kilns, such as flame-retardant industries, lime industries, roasting industries and metallurgic industries.

Description

technical field [0001] The invention relates to a prefabricated part of a burner for a calcining kiln and a preparation method thereof, in particular to a prefabricated part and a preparation method of a prefabricated part of a burner for a calcining kiln used in the refractory raw material calcination industry, the cement industry, the lime industry, the ore calcination industry and the metallurgical industry. Background technique [0002] Traditional burners usually use bulk materials for vibration casting at the site of use, thus prolonging the period of kiln shutdown. The construction period is long, the site labor intensity is high, water is added during construction, the maintenance period is long, and the life of the final product is short. Affected the normal production of the rotary kiln. At the same time, the existing castable products are also difficult to meet the problems of anti-stripping, short life, and unstable segregation of construction quality during the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C04B35/622
CPCC04B35/66F27B7/34
Inventor 杜斌
Owner 重庆市潼南区晨兴铸造厂