CN102168859B - Anticorrosion structure for concrete flue and chimney joint of brick lining chimney and anticorrosion treatment method - Google Patents
Anticorrosion structure for concrete flue and chimney joint of brick lining chimney and anticorrosion treatment method Download PDFInfo
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- CN102168859B CN102168859B CN 201010561239 CN201010561239A CN102168859B CN 102168859 B CN102168859 B CN 102168859B CN 201010561239 CN201010561239 CN 201010561239 CN 201010561239 A CN201010561239 A CN 201010561239A CN 102168859 B CN102168859 B CN 102168859B
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Abstract
The invention provides an anticorrosion structure for a concrete flue and a chimney joint of a brick lining chimney and an anticorrosion treatment method. A polyfluorine organic liner is adopted as an anticorrosion material to perform the anticorrosion treatment, and the problems of failure in anticorrosion and leakage of condensed fluid caused by the damage on an anticorrosion layer due to a comprehensive effect of stresses produced by expansion and contraction which simultaneously exist at the positions of the concrete flue and the chimney joint in a horizontal direction and a vertical direction are solved.
Description
Technical field
The present invention relates to the preservative treatment technology of the brick lining chimney of the industries uses such as thermal power plant, chemical industry and metallurgy.
Background technology
For the brick lining chimney that the industries such as thermal power plant, chemical industry and metallurgy are used, preservative treatment is an important engineering.And in the internal structure of chimney, special preservative treatment need to be carried out in some special positions.Concrete flue and chimney are positioned at the porch 21 of horizontal flue and chimney handing-over, as shown in Figure 1, this position building handing-over seam, Main Function is that reservation is flexible, eliminating expands with heat and contract with cold affects chimney structure.22 is the chimney outer wall among the figure, and 23 is the chimney thermal insulation layer, and 24 is proof chimney lining brick made.Owing to the practical structures situation understanding to this position is unclear, therefore the processing at this position do not obtained enough attention at present, usually press the anticorrosion same processing mode of flue or inner wall of stack.Because the comprehensive function that this position exists horizontal direction and vertical direction to expand and shrink the stress that produces, the result causes anticorrosive coat to destroy anticorrosion inefficacy, condensate liquid seepage.Therefore, the common problem that Seepage is at present domestic and international chimney anticorrosion appears in chimney and flue junction.
Summary of the invention
The object of the invention is to the problem for the prior art existence, a kind of concrete flue of brick lining chimney and the method for anticorrosion treatment of chimney are proposed, adopt poly-fluoropolymer organic lining anticorrosive material to carry out preservative treatment, thereby overcome because this position exists the expansion of horizontal direction and vertical direction both direction and the comprehensive function of the stress that contraction produces very easily anticorrosive coat to be produced destruction simultaneously, thereby cause anticorrosion inefficacy, the condensate liquid leakage problems.
Technical scheme of the present invention is as follows:
A kind of concrete flue of brick lining chimney and the anticorrosion structure of chimney, described anticorrosion structure is that the platform in the both sides of flue and chimney has a wide 30-50mm, the groove of dark 50-100m, the length of groove is wide identical with flue, and filling with in the handing-over seam has silicone rubber kinds high temperature elastic bonding encapsulant; In the groove that dig out handing-over seam both sides, also fill silicone rubber kinds high temperature elastic bonding encapsulant, and the zone between two grooves is scraped and is scribbled silicone rubber kinds high temperature elastic bonding encapsulant, other has a u shaped steel sheet, described u shaped steel sheet left-hand thread is on the zone of scraping between two grooves that scribble silicone rubber kinds high temperature elastic bonding encapsulant, and the two ends of steel plate buckle in described groove; Be coated with poly-fluoropolymer organic lining anticorrosive material and the compound fiberglass of making of glass-fiber-fabric at described steel plate, be coated with the acidproof brick that adopts silicone rubber kinds high temperature elastic bonding encapsulant lining to paste at described fiberglass, scribble poly-fluoropolymer organic lining anticorrosive material in described acidproof brick surface brush;
A kind of concrete flue of brick lining chimney and the method for anticorrosion treatment of chimney:
1, removes flue and the former anticorrosive coat in chimney place to substrate, flue and chimney are unwatered only;
2, on the platform of handing-over seam both sides, respectively cut a hole a wide 30-50mm, the groove of dark 50-100m, the length of groove is wide identical with flue, and makes a u shaped steel sheet;
3, in the handing-over seam, fill with silicone rubber kinds high temperature elastic bonding encapsulant;
4, in the groove that dig out handing-over seam both sides, fill silicone rubber kinds high temperature elastic bonding encapsulant, and the regional blade coating silicone rubber kinds high temperature elastic bonding encapsulant (thickness is not less than 5mm) between two grooves, then the u shaped steel sheet left-hand thread buckles in the groove two ends of steel plate on this zone;
5, the fiberglass that is composited with poly-fluoropolymer organic lining anticorrosive material (VP3-2) and glass-fiber-fabric at steel plate, adopt in the above again silicone rubber kinds high temperature elastic bonding encapsulant lining to paste acidproof brick, at last at the poly-fluoropolymer organic lining anticorrosive material (VP3-2) of acidproof brick surface brush, thickness 0.5mm;
6, maintenance: room temperature: 1-3 days, or heat: after 50-80 ℃ of maintenance 3-8 hour, again at 100-150 ℃ of maintenance 12-48 hour.
Wherein, silicone rubber kinds high temperature elastic bonding encapsulant can be used silicon rubber, silicone adhesive, fluorosioloxane rubber, polyurethane adhesive etc., or same type of material replaces.
Wherein poly-fluoropolymer organic lining anticorrosive material adopts Chinese invention patent document CN101891993A to announce " poly-fluoropolymer organic lining anticorrosive material and the processing method of chimney, flue and other pipeline and container ", this material is comprised of A and two kinds of components of B, the A component is to be raw material by fluorine-containing rubber first, adding stabilizing agent and reinforcing filler carries out mixing again, form elastomeric compound, then make solvent with ketone, ester class or alcohols, putty type rubber cement is made in dissolving, adds filler therein again and auxiliary agent is made; The B component is additive and organic solvent; After A, B component mix, be coated with and be contained in by preserver surface, at room temperature sulfuration forms anticorrosive coat, reaches anticorrosion purpose.The product designation that the applicant gives is VP3-2.
Adopt above-mentioned processing method, owing to exist the material at flexible position all to adopt elastomeric material, and pull apart the percentage elongation index all more than 40%, can eliminate well because the thermal stress of the horizontal and vertical direction that the fluctuation of cigarette temperature produces, can not cause anticorrosive coat to destroy, stop the condensate liquid Seepage.The method is practical application on a plurality of chimney anticorrosion projects, successful.
Description of drawings
Fig. 1 is the overall structure profile of chimney.
Fig. 2 is concrete flue behind the chimney anticorrosion and the cross-sectional view of chimney.
The specific embodiment
Further describe the process of this method for anticorrosion treatment below in conjunction with accompanying drawing:
(1) removes flue and the former anticorrosive coat in chimney place to substrate 1, draw clearly flue and chimney 9;
(2) on the platform of handing-over seam both sides, respectively cut a hole a wide 50mm, the groove 8 of dark 100m, the length of groove is wide identical with flue.Other makes a u shaped steel sheet 3, (steel plate is processed behind in-site measurement for steel plate thickness 6mm, sidewall turnover 600mm);
(3) at handing-over seam 9 interior filling silicone rubber kinds high temperature elastic bonding encapsulant 2 (silicon rubber);
(4) at will the overlay area whole blade coating silicone rubber kinds high temperature of steel plate 3 elastic bonding encapsulant 2(silicon rubber, thickness is 5mm), and after in cell body, filling silicone rubber kinds high temperature elastic bonding encapsulant (silicon rubber), left-hand thread steel plate 3 is installed the two ends of steel plate are buckled in the groove 8;
(5) make the compound fiberglass 4(of poly-fluoropolymer organic lining anticorrosive material VP3-2 and glass-fiber-fabric at steel plate 5 and adopt 2 cloth, 3 oily techniques) after, adopt in the above again silicone rubber kinds high temperature elastic bonding encapsulant 5 (silicon rubber) lining to paste acidproof brick 6, make again at last the compound fiberglass 7(of poly-fluoropolymer organic lining anticorrosive material VP3-2 and glass-fiber-fabric on the acidproof brick surface and adopt 1 cloth, 2 oily techniques);
(6) maintenance: room temperature: 1-3 days, or heat: after 50-80 ℃ of maintenance 3-8 hour, again at 100-150 ℃ of maintenance 12-48 hour;
Silicone rubber kinds high temperature elastic bonding encapsulant can be used silicon rubber, silicone adhesive, fluorosioloxane rubber, polyurethane adhesive etc., or same type of material replaces.
Claims (2)
1. the anticorrosion structure of the concrete flue of a brick lining chimney and chimney, it is characterized in that: described anticorrosion structure is that the platform in the both sides of flue and chimney has a wide 30-50mm, the groove of dark 50-100mm, the length of groove is wide identical with flue, and filling with in the handing-over seam has silicone rubber kinds high temperature elastic bonding encapsulant; In the groove that dig out handing-over seam both sides, also fill silicone rubber kinds high temperature elastic bonding encapsulant, and the zone between two grooves is scraped and is scribbled silicone rubber kinds high temperature elastic bonding encapsulant, other has a u shaped steel sheet, described u shaped steel sheet left-hand thread is on the zone of scraping between two grooves that scribble silicone rubber kinds high temperature elastic bonding encapsulant, and the two ends of steel plate buckle in described groove; Be coated with poly-fluoropolymer organic lining anticorrosive material and the compounded fiberglass of glass-fiber-fabric at described steel plate, be coated with the acidproof brick that adopts silicone rubber kinds high temperature elastic bonding encapsulant lining to paste at described fiberglass, scribble poly-fluoropolymer organic lining anticorrosive material in described acidproof brick surface brush;
Wherein, silicone rubber kinds high temperature elastic bonding encapsulant is selected silicon rubber, silicone adhesive or polyurethane adhesive;
Poly-fluoropolymer organic lining anticorrosive material is comprised of A and two kinds of components of B, the A component is to be raw material by fluorine-containing rubber first, adding stabilizing agent and reinforcing filler carries out mixing again, form elastomeric compound, then make solvent with ketone, ester class or alcohols, putty type rubber cement is made in dissolving, adds filler therein again and auxiliary agent is made; The B component is additive and organic solvent; After A, B component mix, be coated with and be contained in by the preserver surface at room temperature sulfuration, formation anticorrosive coat.
2. the method for anticorrosion treatment of the concrete flue of a brick lining chimney and chimney, it may further comprise the steps:
Remove flue and the former anticorrosive coat in chimney place to substrate, flue and chimney are unwatered only;
On the platform of handing-over seam both sides, respectively cut a hole a wide 30-50mm, the groove of dark 50-100mm, the length of groove is wide identical with flue, and makes a u shaped steel sheet;
In the handing-over seam, fill with silicone rubber kinds high temperature elastic bonding encapsulant;
In the groove that dig out handing-over seam both sides, fill silicone rubber kinds high temperature elastic bonding encapsulant, and the regional blade coating silicone rubber kinds high temperature elastic bonding encapsulant between two grooves, then with the u shaped steel sheet left-hand thread on this zone, the two ends of steel plate are buckled in the described groove;
Cover poly-fluoropolymer organic lining anticorrosive material and the compounded fiberglass of glass-fiber-fabric at described steel plate, on fiberglass, adopt again silicone rubber kinds high temperature elastic bonding encapsulant lining to paste acidproof brick, at last at the poly-fluoropolymer organic lining anticorrosive material of acidproof brick surface brush, thickness 0.5mm;
Maintenance: room temperature: 1-3 days, or heat: after 50-80 ℃ of maintenance 3-8 hour, again at 100-150 ℃ of maintenance 12-48 hour;
Wherein, silicone rubber kinds high temperature elastic bonding sealing material use silicon rubber, silicone adhesive or polyurethane adhesive;
Poly-fluoropolymer organic lining anticorrosive material is comprised of A and two kinds of components of B, the A component is to be raw material by fluorine-containing rubber first, adding stabilizing agent and reinforcing filler carries out mixing again, form elastomeric compound, then make solvent with ketone, ester class or alcohols, putty type rubber cement is made in dissolving, adds filler therein again and auxiliary agent is made; The B component is additive and organic solvent; After A, B component mix, be coated with and be contained in by the preserver surface at room temperature sulfuration, formation anticorrosive coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010561239 CN102168859B (en) | 2010-11-26 | 2010-11-26 | Anticorrosion structure for concrete flue and chimney joint of brick lining chimney and anticorrosion treatment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010561239 CN102168859B (en) | 2010-11-26 | 2010-11-26 | Anticorrosion structure for concrete flue and chimney joint of brick lining chimney and anticorrosion treatment method |
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| CN102168859A CN102168859A (en) | 2011-08-31 |
| CN102168859B true CN102168859B (en) | 2013-01-23 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107314192A (en) * | 2017-08-25 | 2017-11-03 | 绵阳飞远科技有限公司 | A kind of pipeline waterproof anti-corrosion protection shell |
| CN110195877A (en) * | 2019-05-01 | 2019-09-03 | 浙江顺豪新材料有限公司 | The inexpensive steel liner chimney anticorrosion lining offset plate and method that service life is 30 years |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2123905A5 (en) * | 1971-01-28 | 1972-09-15 | Piot Jacques | |
| US6588802B2 (en) * | 2001-06-22 | 2003-07-08 | Fred G. Schukal | Two-part, clamp-connected chimney flue tee |
| CN101235967A (en) * | 2007-01-29 | 2008-08-06 | 张沈杰 | Generating factory chimney and air flue anti-corrosive method |
| CN101725270B (en) * | 2009-12-04 | 2011-09-07 | 上海德昊化工有限公司 | Sealing corrosion-resistant structure of expansion joint of brick lining chimney |
| CN101793105A (en) * | 2010-03-26 | 2010-08-04 | 西安天元合成材料有限公司 | Anti-corrosion method of inner wall of stack |
| CN101891993B (en) * | 2010-07-06 | 2012-10-24 | 重庆大众防腐有限公司 | Fluoropolymer organic lining anticorrosive material for chimney, flue and other pipelines and containers and construction method thereof |
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Owner name: VOLK-ANTICORROSION CO., LTD. Free format text: FORMER NAME: CHONGQING DAZHONG EROSION-PROOF CO., LTD. |
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Address after: 401121, 9, West Honghu Road, 18 North New District, Chongqing Patentee after: Volk-anticorrosion Co., Ltd. Address before: 401121 9, 18 West Honghu Road, Yubei District New District, Chongqing Patentee before: Chongqing Dazhong Erosion-Proof Co., Ltd. |