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High-strength wear-resistant pouring material for aerial refuse incinerator

A waste incinerator and castable technology, which is applied in the field of high-strength wear-resistant castables for aviation waste incinerators, can solve problems such as poor wear resistance, cracked furnace walls, and poor thermal shock stability, and achieve high resistance to high-temperature airflow erosion And wear resistance, high medium temperature strength, and the effect of ensuring air tightness

Active Publication Date: 2011-06-08
ZHEJIANG RUITAI REFRACTORY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current furnace wall refractories have poor resistance to high-temperature airflow erosion and wear resistance, and poor thermal shock stability, which can easily lead to the rupture of the furnace wall

Method used

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  • High-strength wear-resistant pouring material for aerial refuse incinerator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] A high-strength wear-resistant castable for aviation waste incinerators, which consists of the following components and the mass percentage of the components is:

[0079]8~5mm high alumina clinker 14%

[0080] 5~3mm high alumina clinker 25%

[0081] 3 ~ 1mm brown corundum or white corundum 13%

[0082] <0.074mm brown or white corundum 15%

[0083] 1~0.074mm silicon carbide 10%

[0084] 2 o 3 Micronized 4%

[0085] <1um silica powder 6%

[0086] <0.074mm pure calcium aluminate cement 9%

[0087] <0.2mm sodium tripolyphosphate 0.09%

[0088] Sodium hexametaphosphate <0.2mm 0.08%

[0089] Heat-resistant steel fiber 310 # 3.83%.

[0090] Usually the steel fiber adopts heat-resistant steel fiber 310 # .

[0091] Preparation Process:

[0092] 1. Selection and storage of raw materials

[0093] a. Purchasing raw materials in strict accordance with the technical requirements of raw materials, and making physical and chemical performance tests.

[00...

Embodiment 2

[0133] A high-strength wear-resistant castable for aviation waste incinerators, which consists of the following components and the mass percentage of the components is:

[0134] 8~5mm high alumina clinker 25%

[0135] 5~3mm high alumina clinker 24%

[0136] 3 ~ 1mm brown corundum or white corundum 12%

[0137] <0.074mm brown or white corundum 14%

[0138] 1~0.074mm silicon carbide 9%

[0139] 2 o 3 Micronized 2%

[0140] <1um silica powder 4%

[0141] <0.074mm pure calcium aluminate cement 8%

[0142] <0.2mm sodium tripolyphosphate 0.07%

[0143] Sodium hexametaphosphate <0.2mm 0.06%

[0144] Steel fibers 1.87%.

[0145] Its process is the same as described in Example 1.

Embodiment 3

[0147] A high-strength wear-resistant castable for aviation waste incinerators, which consists of the following components and the mass percentage of the components is:

[0148] 8~5mm high alumina clinker 20%

[0149] 5~3mm high alumina clinker 25%

[0150] 3 ~ 1mm brown corundum or white corundum 13%

[0151] <0.074mm brown or white corundum 14%

[0152] 1~0.074mm silicon carbide 9%

[0153] 2 o 3 Micronized 3%

[0154] <1um silica powder 4%

[0155] <0.074mm pure calcium aluminate cement 9%

[0156] <0.2mm sodium tripolyphosphate 0.08%

[0157] Sodium hexametaphosphate <0.2mm 0.07%

[0158] Steel fibers 2.85%.

[0159] Its process is the same as described in Example 1.

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Abstract

The invention discloses a high - strength wear resistant castable for an aircraft refuse incinerator. The compositions in percentage by mass of the castable are: 14 to 25 percent of high alumina with a thickness of between 8 to 5mm, 24 to 25 percent of high alumina with a thickness of between 5 to 3mm, 12 to 13 percent of brown corundum or white corundum with a thickness of between 3 to 1mm, 14 to 15 percent of brown corundum or white corundum with a thickness less than or equal to 0.074mm, 9 to 10 percent of silicon carbide with a thickness of between 1 to 0.074mm, 2 to 4 percent of alpha-Al2O3 powder with a thickness less than or equal to 5 um, 4 to 6 percent of silicon oxide powder with a thickness less than or equal to1 um, 8 to 9 percent of pure calcium aluminate cement with a thickness less than or equal to 0.074mm, 0.07 to 0.09 percent of trimeric sodium phosphate with a thickness less than or equal to 0.2mm, 0.06 to 0.08 percent of sodium hexametaphosphate with a thickness less than or equal to 0.2mm, 1.87 to 3.83 percent of steel fiber. The castable has the advantages of very strong high temperature air flow washout resistance and wear resistance properties, and applies to the wear resistant linings in high temperature industrial kiln such as circulating fluidized beds and flame boilers.

Description

technical field [0001] The invention relates to a high-strength wear-resistant casting material for an aviation waste incinerator. technical background [0002] With the development of society, people are gradually worried about the increasingly serious pollution of their living environment. Disposal and reuse of municipal waste is one of the important issues of environmental issues. [0003] The temperature of the combustion chamber of the waste incineration equipment is as high as 1300°C, and the slag will seriously damage the refractory material of the furnace wall. The current furnace wall refractory materials have relatively poor resistance to high-temperature airflow erosion and wear resistance, and poor thermal shock stability, which can easily lead to the rupture of the furnace wall. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a high-strength wear-resistant castable for aviation waste incinerators, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 范圣良
Owner ZHEJIANG RUITAI REFRACTORY TECH