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A high-performance self-flowing castable

A castable, high-performance technology, applied in the field of refractory materials, can solve problems such as bursting, affecting the overall performance of castables, and segregation of castables

Active Publication Date: 2019-11-08
ANHUI RUITAI NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to complete the task on time and speed up the construction, the most common method is to add more water to the castable during construction to improve fluidity and facilitate construction. However, this often results in segregation of the castable, pulverization of the surface, and bursting during baking, which is extremely serious. The influence of the overall performance of the castable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-performance self-flowing castable proposed by the present invention, its raw materials include by weight: 55 parts of corundum with a particle size of 5-1mm, 6 parts of corundum with a particle size of 1-0.088mm, and corundum with a particle size of 1-0.088mm 10 parts of andalusite, 6 parts of corundum with particle size <0.088mm, 10 parts of silicon carbide with particle size <0.088mm, 4 parts of alumina micropowder, 8 parts of aluminate cement, 1 part of additive, and 7 parts of water.

Embodiment 2

[0025] A high-performance self-flowing castable proposed by the present invention, its raw materials include by weight: 40 parts of bauxite with a particle size of 5-1 mm, 15 parts of bauxite with a particle size of 1-0.088 mm, and 1-0.088 parts of bauxite with a particle size mm of andalusite, 12 parts of corundum with particle size <0.088mm, 6 parts of silicon carbide with particle size <0.088mm, 6 parts of activated alumina micropowder, 3 parts of aluminate cement, SiOxX-zero launched by Elkem 4 parts of cementless castable binder, 4 parts of water.

Embodiment 3

[0027] A high-performance self-flowing castable proposed by the present invention, its raw materials include by weight: 52 parts of sintered corundum with a particle size of 5-1 mm, 7 parts of bauxite with a particle size of 1-0.088 mm, and 7 parts of bauxite with a particle size of 1-0.088 mm 8.5 parts of andalusite, 8 parts of sintered corundum with a particle size of <0.088mm, 8.5 parts of silicon carbide with a particle size of <0.088mm, 4.8 parts of activated alumina micropowder, 4 parts of pure aluminate cement, 2 parts of high alumina cement, 2 parts of calcium lignosulfonate, 6 parts of water, 0.1 part of silica fume, 0.2 part of organic fiber;

[0028] Wherein, the calcium lignosulfonate is modified calcium lignosulfonate; the modified calcium lignosulfonate is prepared according to the following process: adding maleic anhydride in the reaction device, then adding β-cyclodextrin, After heating and melting, add p-toluenesulfonic acid, raise the temperature to 85°C, sti...

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PUM

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Abstract

The invention discloses a high-performance self-flow castable. The self-flow castable comprises the following raw materials: 40-55 parts of corundum or alumina with particle size of 5-1mm, 6-15 parts of corundum or alumina with particle size of 1-0.088mm, 6-10 parts of andalusite with particle size of 1-0.088mm, 6-12 parts of corundum with particle size less than 0.088mm, 6-10 parts of silicon carbide with particle size less than 0.088mm, 4-6 parts of active alumina micro powder or alumina micro powder, 3-8 parts of aluminate cement, 1-4 parts of an additive, and 4-7 parts of water. The high-performance self-flow castable can reach self leveling and self exhausting by depending on self gravity, vibration is not required, construction labor intensity is reduced, slight expansion is generated under high temperature, high temperature performance of a refractory material is increased, construction is convenient, and the usage life of the castable is not influenced.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a high-performance self-flowing castable. Background technique [0002] Refractory castable is a widely used refractory material. However, traditional castables basically require vibration construction. During the construction process, in order to increase the construction speed or solve the problem that vibration construction cannot be carried out in a local area, more water is often added to improve the flow performance, thereby causing castable segregation and reducing detachment. The mold strength is increased, the porosity is increased, and the overall performance of the castable is significantly deteriorated. [0003] The maintenance time of the high temperature kiln industry is very limited. Taking the cement industry as an example, major repairs take half a month, and minor repairs take three to four days. The construction of refractory materials is even mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/30C04B2235/3217C04B2235/3826C04B2235/48C04B2235/96
Inventor 董舜杰张金龙汪雷洪绍松
Owner ANHUI RUITAI NEW MATERIALS TECH