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Surface-modified pretreatment fire-resistant anchoring brick and preparation process thereof

A technology of surface modification and preparation process, which is applied in the direction of lighting and heating equipment, furnace components, coatings, etc., to buffer the breaking force, improve the service life, and ensure the effect of adding water

Active Publication Date: 2019-12-20
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 coating, waterproof coating and peelable coating, put them into a high-speed mixer and mix them evenly to prepare a mixed material and set aside;

[0046] S3: Take the anchor brick body and the mixed material, and coat the mixed material on the surface of the anchor brick body to form a modified coating; the coating temperature is 4°C, and the coating thickness is 0.1mm; when coating, first brush a layer of the mixed material , the brushing time is 100s, and it is placed for 30 minutes; after being placed, continue to brush the mixed material, 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 48 hours at 4°C, and the ambient humidity is 15%;

[0048] S5: Dryi...

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 coating, waterproof coating and peelable coating, put them into a high-speed mixer and mix them evenly to prepare a mixed material and set aside;

[0053] S3: Take the anchor brick body and the mixed material, and coat the mixed material on the surface of the anchor brick body to form a modified coating; the coating temperature is 25°C, and the coating thickness is 5mm; when coating, first spray a layer of mixed material with a spray gun , the spraying time is 100s, and it is placed for 30 minutes; continue to spray the mixed material after standing, 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 ambient humidity is 60%;

[0055] ...

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 coating, waterproof coating and peelable coating, put them into a high-speed mixer and mix them evenly to prepare a mixed material and set aside;

[0060] S3: Take the anchoring brick body and the mixed material, and coat the mixed material on the surface of the anchoring brick body to form a modified coating; the coating temperature is 50°C, and the coating thickness is 10mm; when coating, the anchoring brick body is first dipped in the mixture In the material, the dipping time is 80s, and it is placed for 45 minutes; after standing, continue to dip, and repeat the steps until the formed modified coating reaches the preset thickness;

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

[0062] ...

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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 anchor bricks, in particular to a surface-modified pretreated refractory anchor brick and a preparation process thereof. Background technique [0002] Anchor bricks, also known as hanging bricks, are made of high-quality raw materials, machine-pressed or poured, and then sintered at high temperature. Anchor bricks play an important role in building industrial furnace roofs and facing walls. They can improve the integrity of building linings such as refractory castables, ramming materials, and plastics. In order to prolong the life of the furnace lining, it is usually necessary to ensure that the 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 tight bond with the lining material, and reduce the inconsistent expansion and contraction during high temperature or cold furnace process As a res...

Claims

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Application Information

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Patent Type & Authority Applications(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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