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A surface-modified pretreated refractory anchor brick and its preparation process

A technology of surface modification and preparation process, which is applied in the field of anchoring bricks to achieve the effects of ensuring water addition, improving service life and buffering breaking force

Active Publication Date: 2021-01-08
JIANGSU REFUTA NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a surface modified pretreatment refractory anchor brick and its preparation process to solve the problems in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044]S1: Prepare to anchor the brick body, spare;

[0045]S2: Weigh the raw materials of each component in proportion, including petroleum pitch, coal pitch, carbon-containing resin paint, waterproof paint and peelable paint, put them in a high-speed mixer and mix them evenly to prepare a mixture for use;

[0046]S3: Take the anchor brick body and the mixture material, and apply the mixture material to the surface of the anchor brick body to form a modified coating; the coating temperature is 4℃, and the coating thickness is 0.1mm; when coating, first brush a layer of the mixture material , The brushing time is 100s, and placed for 30min; after placement, continue to brush the mixture and repeat the steps until the formed modified coating reaches the preset thickness;

[0047]S4: Curing: Take the anchor brick body coated with the modified coating, and let it stand for 48h at 4°C, and the environmental humidity is 15%;

[0048]S5: Drying: Take the cured anchor brick body and let it stand for dr...

Embodiment 2

[0051]S1: Prepare to anchor the brick body, spare;

[0052]S2: Weigh the raw materials of each component in proportion, including petroleum pitch, coal pitch, carbon-containing resin paint, waterproof paint and peelable paint, put them in a high-speed mixer and mix them evenly to prepare a mixture for use;

[0053]S3: Take the anchor brick body and the mixture material, and apply the mixture material to the surface of the anchor brick body to form a modified coating; the coating temperature is 25℃, and the coating thickness is 5mm; when coating, a layer of the mixture material is sprayed through the spray gun. , The spraying time is 100s, and placed for 30min; after placement, continue to spray the mixture and repeat the steps until the formed modified coating reaches the preset thickness;

[0054]S4: Curing: Take the anchor brick body coated with the modified coating and let it stand for 24 hours at 40°C, and the environmental humidity is 60%;

[0055]S5: Drying: Take the cured anchor brick bo...

Embodiment 3

[0058]S1: Prepare to anchor the brick body, spare;

[0059]S2: Weigh the raw materials of each component in proportion, including petroleum pitch, coal pitch, carbon-containing resin paint, waterproof paint and peelable paint, put them in a high-speed mixer and mix them evenly to prepare a mixture for use;

[0060]S3: Take the anchor brick body and the mixture material, and apply the mixture material to the surface of the anchor brick body to form a modified coating; the coating temperature is 50 ℃, and the coating thickness is 10 mm; the anchor brick body is first immersed in the mixture when coating In the material, the immersion time is 80s and placed for 45min; after placing it, continue to immerse and repeat the steps until the modified coating formed reaches the preset thickness;

[0061]S4: Curing: Take the anchor brick body coated with the modified coating, and let it stand for 6 hours in an environment of 90°C with an ambient humidity of 95%;

[0062]S5: Drying: Take the cured anchor b...

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Abstract

The invention discloses a surface-modified pretreatment fire-resistant anchoring brick and a preparation process thereof. Nowadays, generally in order to prolong the service life of a furnace lining,it is usually needed to ensure that all the properties of the anchoring brick should be consistent with the texture of a lining material, but during actual operation, the anchoring brick and the lining material are generally prepared from two different materials based on cost and the needs of actual production, and thus in the high-temperature or furnace cooling process, the situation that due toinconsistent expansion and shrinkage between the anchoring brick and the lining material, local stress asymmetry is caused, and therefore the anchoring brick cracks is caused. Aiming at the problem, the surface-modified pretreatment fire-resistant anchoring brick and the preparation method thereof are designed, and the surface of the anchoring brick is coated with a modified coating. The surface-modified pretreatment fire-resistant anchoring brick is reasonable in process design, the stress between an anchoring brick body and the lining material can be effectively buffered, and the anchoring brick is prevented from cracking; and meanwhile the structural strength of the anchoring brick body is improved, and high practicality is improved.

Description

Technical field[0001]The invention relates to the technical field of anchoring bricks, in particular to a surface modification pretreatment refractory anchoring brick and a preparation process thereof.Background technique[0002]Anchor bricks, also known as hanging bricks, are made of high-quality raw materials, formed by press molding or pouring, and then sintered at high temperature. Anchor bricks play an important role in the construction of industrial furnace roofs and directly facing walls. They can improve the integrity of refractory castables, ramming materials, plastics and other construction linings. In order to prolong the life of the furnace lining, it is usually necessary to ensure that the various properties of the anchor bricks should be consistent with the material of the lining material, and the expansion and contraction should be consistent, so as to form a close combination with the lining material, and reduce the inconsistency due to expansion and contraction during...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D1/04C09D195/00C09D157/02
CPCC08L2205/025C09D195/00F27D1/04C08L95/00C08L57/02
Inventor 李连地宋学斌
Owner JIANGSU REFUTA NEW MATERIALS CO LTD
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