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Antiseptic processing method for capping part of brick lining chimney

A technology of anti-corrosion treatment and chimney, which is applied in the field of anti-corrosion treatment of brick-lined chimneys, and can solve the problems of chimney anti-corrosion failure, anti-corrosion failure, leakage, etc.

Inactive Publication Date: 2011-08-31
重庆大众防腐股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main problem of roofing anti-corrosion treatment is that the roofing structure has not been fully understood, and the same treatment method as the chimney cylinder is used, resulting in cracks or cracks in the anti-corrosion materials at the joints where expansion and contraction exist, resulting in anti-corrosion failure and Leakage phenomenon, some chimney liquid directly leaks to the insulation layer, making the whole chimney anti-corrosion failure

Method used

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  • Antiseptic processing method for capping part of brick lining chimney
  • Antiseptic processing method for capping part of brick lining chimney
  • Antiseptic processing method for capping part of brick lining chimney

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1, brick chimney concrete pressure top anti-corrosion treatment, as figure 2 As shown in the figure, 1 is the VP3-2 layer of polyfluorine organic lining anticorrosion material, 2 is the concrete outer wall of the chimney, 3 is the inner lining of the chimney, and 4 is the concrete topping.

[0023] (1) While washing the inner wall of the overall chimney with high-pressure water, also wash the area of ​​the top concrete top 4 with high-pressure water to remove impurities such as loose layers and floating ash at the top of the chimney;

[0024] (2) Use the repairing material potassium silicate cement to repair or partially level the gaps in the top concrete bricks, and the drying time is not less than 48 hours;

[0025] (3) Spray, scrape, brush or roll coat VP3-2 layer 1 of polyfluorinated organic lining anti-corrosion material on the concrete top surface, with a thickness of 1±0.2mm;

[0026] (4) Curing: Room temperature: 1-3 days, or heating: after curing a...

Embodiment 2

[0027] Embodiment 2, brick chimney cast iron pressure top anticorrosion treatment, as image 3 As shown in the figure, 1-polyfluorine organic lining anti-corrosion material VP3-2 layer, 2 is the chimney concrete outer wall, 3 is the chimney inner lining, 5-silicone rubber high temperature elastic bonding sealing material, 6-cast iron pressure top, 7 -Chlorinated rubber paint layer, 8-joint joint between cast iron roof and outer wall, 9-joint joint between cast iron roof and inner wall.

[0028] (1) Rinse the entire cast iron roof 23 with high-pressure water, and manually remove the mortar and acid-resistant mortar in the joint 8 of the cast iron roof and the outer wall and the joint 9 of the cast iron roof and the inner wall to remove impurities in the joint;

[0029] (2) Fill the joint 8 of the cast iron top and the outer wall and the joint 9 of the cast iron top and the inner wall into the silicone rubber high temperature elastic bonding sealing material 5; and brush the sur...

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Abstract

The invention discloses an antiseptic processing method for a capping part of a brick lining chimney, which comprises the following steps: washing a capping area at the chimney top with high-pressure water to remove impurities; repairing gaps of capping concrete bricks or locally leveling and drying; spraying, blade-coating, brush-coating or roller-coating a polyfluorine organic lining antiseptic material layer on the capping surface; and finally maintaining. In the method, antiseptic processing targeting an expansion joint part is performed by using elastic material, thereby solving the problems of leak tightness and thermal expansion at the same time. The method can perfectly eliminate thermal stress generated by fluctuation of smoke temperature, cannot damage the antiseptic layer and eradicates leakage of condensate.

Description

technical field [0001] The invention relates to an anticorrosion treatment technology for brick-lined chimneys used in industries such as thermal power plants, chemical industry and metallurgy. Background technique [0002] For brick-lined chimneys used in thermal power plants, chemical and metallurgical industries, anti-corrosion treatment is an important project. In the internal structure of the chimney, some special parts need special anti-corrosion treatment. The concrete topping position of the chimney is at the top of the chimney, such as figure 1 As shown, the pressure top 21 is the contact part between the flue gas and the atmosphere in the chimney, and its main function is to seal and protect the chimney barrel and lining, and improve its structural stability. Among the figure, 22 is the chimney outer wall, 23 is the chimney insulation layer, and 24 is the chimney lining brick. At present, the brick chimney roofing structure mainly includes two parts: concrete ro...

Claims

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Application Information

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IPC IPC(8): E04H12/28E04G21/00E04G23/02
Inventor 杨祖洪唐健高荣谢彦飞张昊
Owner 重庆大众防腐股份有限公司
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