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Silica fire-resistant slurry powder

A refractory slurry and siliceous technology, applied in the field of refractory materials, can solve the problems of non-bonding at high temperature and inconsistent materials, and achieve the effects of firm bonding, reasonable particle size distribution, and reasonable ratio of raw materials

Active Publication Date: 2009-10-14
山西盂县西小坪耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a siliceous refractory mud in order to solve the problem that the raw materials for preparing refractory mud powder and the silica bricks used for masonry furnace body are not consistent with each other in the actual use process of the existing siliceous mud powder, resulting in non-sticking at high temperature. pink

Method used

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Examples

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Effect test

Embodiment 1

[0013] Silica refractory mud powder, made of the following raw materials in weight percentage: SiO 2 Content not less than 97.5% silica 46%, SiO 2 Residual silica bricks with a content not less than 94% 48%, Al 2 o 3 6% of refractory clay with a content of not less than 25%, plus 0.03% of yellow dextrin accounting for the total weight of the above-mentioned raw materials. The silica adopts Wutai silica, which is composed of two parts, wherein the silica particles with a particle size range of 1-0.074mm account for 5%, and the particles with a particle size range of <0.074mm account for 95%; the residual silica brick is composed of three parts. Partial composition, wherein the residual silica brick particles with a particle size range of 1-3mm accounted for 1%, the particles with a particle size range of 1-0.074mm accounted for 74%, and the particles with a particle size range of <0.074mm accounted for 25%; The refractory clay is composed of two parts, wherein the refractory...

Embodiment 2

[0015] Silica refractory mud powder, made of the following raw materials in weight percentage: SiO 2 Content not less than 97.5% silica 48%, SiO 2 Residual silica brick with content not less than 94%, 46%, Al 2 o 3 6% of refractory clay with a content of not less than 25%, plus yellow dextrin accounting for 0.05% of the total weight of the above-mentioned raw materials. The silica adopts Wutai silica, which is composed of two parts, wherein the silica particles with a particle size range of 1-0.074mm account for 15%, and the particles with a particle size range of <0.074mm account for 85%; the residual silica bricks are composed of three parts. Partial composition, wherein the residual silica brick particles with a particle size range of 1-3mm accounted for 2%, the particles with a particle size range of 1-0.074mm accounted for 74%, and the particles with a particle size range of <0.074mm accounted for 24%; The refractory clay is composed of two parts, wherein refractory cl...

Embodiment 3

[0017] Silica refractory mud powder, made of the following raw materials in weight percentage: SiO 2 Content not less than 97.5% silica 46%, SiO 2 Residual silica brick with content not less than 94%, 47%, Al 2 o 3 7% of refractory clay with a content of not less than 25%, plus 0.04% of yellow dextrin accounting for the total weight of the above raw materials. The silica adopts Wutai silica, which is composed of two parts, wherein the silica particles with a particle size range of 1-0.074mm account for 10%, and the particles with a particle size range of <0.074mm account for 90%; the residual silica bricks are composed of three parts. Partial composition, wherein the residual silica brick particles with a particle size range of 1-3mm accounted for 2%, the particles with a particle size range of 1-0.074mm accounted for 64%, and the particles with a particle size range of <0.074mm accounted for 34%; The refractory clay is composed of two parts, wherein refractory clay particl...

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Abstract

The invention relates to the technical field of refractory materials, in particular to a siliceous refractory mud powder, which solves the problem that existing siliceous mud powders have inconsistent materials for preparing refractory mud powders and silica bricks used for masonry furnaces, resulting in non-bonding at high temperatures. It is composed of 46-48% silica, 46-48% residual silica brick, 5-7% refractory clay, and 0.03-0.05% yellow dextrin. The material of the silica brick is consistent, and the physical and chemical indicators of the siliceous refractory mud powder described in the present invention are all better than the national standards. Silica and residual silica bricks with the same material as the silica brick of the furnace body built by the refractory mud powder are mainly used. The raw material not only realizes the maximum utilization of waste materials, but also does not appear the phenomenon that the mud powder and silica bricks are bonded in a low temperature environment, but not in a high temperature environment. On the contrary, under the action of yellow dextrin, the bonding is better It is solid, effectively improving the masonry quality of the furnace body and prolonging the service life of the furnace body. It is suitable for masonry high-temperature furnace bodies such as hot blast furnaces, coke ovens, and glass kilns.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a siliceous refractory mud powder suitable for building blast furnaces such as hot blast stoves, coke ovens and glass kilns. Background technique [0002] Silica mud powder is the bonding material for masonry coke ovens and other high-temperature furnaces, and its performance directly affects the masonry quality and service life of the furnace body. At present, people have been using natural mud. For example, some manufacturers use silica as the main raw material, and then mix it with a small amount of residual silica bricks from various silica brick manufacturers to make natural mud powder. The main raw material is silica, which is different from the silica bricks used in masonry coke ovens and other furnaces. Although the ingredients also contain a small amount of residual silica bricks, due to regional differences, the residual silica used in the preparation of mu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C04B14/06
Inventor 武本有武根怀郝良军韩八斤尹建斌
Owner 山西盂县西小坪耐火材料有限公司
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