CN201925940U - Flexible protective lining for chimney or flue - Google Patents
Flexible protective lining for chimney or flue Download PDFInfo
- Publication number
- CN201925940U CN201925940U CN2011200312062U CN201120031206U CN201925940U CN 201925940 U CN201925940 U CN 201925940U CN 2011200312062 U CN2011200312062 U CN 2011200312062U CN 201120031206 U CN201120031206 U CN 201120031206U CN 201925940 U CN201925940 U CN 201925940U
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- chimney
- flue
- toughness
- protective lining
- lining
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Abstract
The utility model discloses a flexible protective lining for a chimney or a flue. The flexible protective lining includes a flexible material surface layer and a flexible middle layer arranged between the flexible material surface layer and the inner wall of the chimney or the flue. An anti-permeation layer is further arranged between the flexible middle layer and the inner wall of the chimney or the flue. The flexible protective lining for the chimney or the flue can effectively protect the inner wall of the chimney or the flue.
Description
Technical field
The utility model belongs to field of environment engineering technology, relates to the toughness protective lining of a kind of chimney or flue.
Background technology
There are sour corrosion in thermal power generation, nonferrous metallurgy and steel-making smoke-gas wet desulfurization system's flue and chimney, and the anti-corrosion method that adopts is to add the last layer lining at chimney and flue inwall usually.Lining material has corrosion-resistant metallic material, nonmetal glass ceramic material, organic resin polymer and composite etc.
The CN101591541 invention proposes the preservative treatment material and the anticorrosive construction technology of a kind of chimney and flue, the preservative treatment material adopts modified silicon rubber as bottom bonding material, the surface modification polytetrafluoroethylene (PTFE) is bonded in the inwall of chimney and flue as the surface layer anti-corrosion material.
The CN101793105A invention relates to the chimney anticorrosion field, it specifically is the anti-corrosion method of a kind of chimney and flue inwall, its method is: being fixed on chimney and the flue inwall by anticorrosive board and anticorrosive board splicing on chimney and the flue inwall, again preserving and sealing is carried out in the splicing gap between anticorrosive board and the anticorrosive board; Described preserving and sealing is by direct gluing sealing; Described preserving and sealing is crimped on anticorrosive board and anticorrosive board gap location by press strip, again the gluing sealing is carried out in the gap; Described anticorrosive board and chimney and flue inwall are fixed by steel nail, and steel nail can adopt titanium alloy nail or stainless steel nail.
The CN101886814A invention belongs to wet chimney anticorrosion field, a kind of anti-corrosion method that is applied to the discharging wet-method desulfurized fume chimney is disclosed, this method has been utilized the glass-reinforced plastic material good corrosion prevention performance, continuously produce fiberglass protective plate with plate muscle structure by pultrusion and compression molding mode, the fiberglass protective plate is by hanging, bolting, bonding or welding manner are fixed on the inner surface of chimney emission tube, between the fiberglass protective plate by effectively being connected to form a complete fiberglass protection cylinder that structure is airtight, can effectively prevent the seepage of flue gas, thereby avoid the corrosion of wet-method desulfurized fume chimney.
The CN101891993A invention proposes the preservative treatment material and the anticorrosive construction technology of a kind of chimney, flue and other container and pipeline.It is raw material that the preservative treatment material adopts the higher rubber of fluorinated volume, adding components such as vulcanizing agent, stabilizing agent and special type filler again carries out mixing, form the presulfurization elastomeric compound, make the dissolution with solvents sizing material with low-molecular-weight ester class and ketone then, form putty type rubber cement, add at last after special additive mixes, be coated with and be contained in chimney, flue and pressure vessels for the chemical industry inwall.Anticorrosion conventional foam glass block of present state inner chimney (flue) (Ceramic Tiles) and binding agent are protected.Can use, can resist high-concentration sulfuric acid, nitric acid, hydrochloric acid, phosphoric acid and hydrofluoric acid and the salt of correspondence and their mixture thereof in the hot environment more than 230 ℃.
In addition, adopt the lining of vitreous ceramic brick, glass flake and inorganic acid resistant adhesive mortar in addition.There is a common drawback in these linings, fragility and rigid material have all been used, under the big situation of chimney run duration difference variation, because lining material and chimney primer difference of thermal expansion coefficients are huge, crack at seam crossing after using a period of time, cause seepage and chimney occurs and the flue inner wall anti-corrosive lost efficacy.
Because general not competent chimney of anticorrosive paint and the requirement of flue inner wall anti-corrosive when adopting the titanium steel composite board lining, cost an arm and a leg, and are not suitable for the transformation of old chimney, therefore need badly and adopt suitable lining safeguard structure to satisfy wet chimney protection needs.。
The utility model content
Technical problem to be solved in the utility model is the toughness protective lining that proposes a kind of chimney or flue, and the toughness protective lining of this chimney or flue can effectively be protected chimney and flue inwall.
Technical solution of the present utility model is as follows:
The toughness protective lining of a kind of chimney or flue, toughness protective lining comprise toughness material top layer and the toughness intermediate layer between the inwall of toughness material top layer and chimney or flue.
Between the inwall of toughness intermediate layer and chimney or flue, also be provided with anti-penetration layer.
The gross thickness of described toughness protective lining is 1.5～4.5mm.
In construction adopt following technological process: 1. chimney and flue inwall are cleaned polishing, remove floating dust and residue, 2. concrete substrate is carried out impermeabilisation and handle, fill and lead up expansion joint, subsiding crack, bracket, flue and be connected seam with chimney at the correction of the defect place, 3. applies the liner intermediate layer with toughness material, check and repair, polishing applies the toughness intermediate layer for the second time, checks and repairs, 4. apply the toughness surface layer, check and repair, apply the toughness surface layer for the second time, 5. maintenance and intensification are solidified.
Chimney and flue inner wall anti-corrosive lining are selected brand-new ductile structure for use, can absorb because of chimney height difference variation to bring stress to inner lining material, thereby avoid the crackle peeling that comes off to produce, and prevent corrosion failure.
Structure adopts the integral lining toughness material, does not contain fragility and rigid material, and whole elongation at break is 20～90%.Wherein: toughness primer elongation at break is 30%～170%, and the surface material elongation at break is 30%～130%, and filling and repairing material elongation at break is 100%～300%, and concrete enclosing is handled the material elongation at break 15%～55%.
The elastomeric material sealing is adopted at the expansion joint, and pastes the elastic membrane enhanced leaktightness.
Toughness material is the material that contains Organic fluoride, organic siliconresin, and organic-silicon-modified material.
Organic fluoride comprises that containing Organic fluoride comprises 4 third fluorubber, perfluor ether rubber, fluoro acrylonitrile-butadiene rubber.
Organic siliconresin comprises the first condensation polymer of several mixtures of methyl trichlorosilane, dimethyldichlorosilane, phenyl trichlorosilane, diphenyl dichlorosilane or dichloromethyl phenylsilane.
Organic-silicon-modified material comprises by organic-silicon-modified epoxy, vinyl, laccol etc.
The whole elongation at break of the cushions structure that toughness material is formed is 20～90%.Wherein: toughness primer elongation at break is 30%～170%, and the surface material elongation at break is 30%～130%, and filling and repairing material elongation at break is 100%～300%, and concrete enclosing is handled the material elongation at break 15%～55%.
The lining structure curing that heats up after maintenance, curing time 7 days～15 days is warmed up to 110 ℃～160 ℃, 3～26 hours heating-up times.
Beneficial effect:
The toughness protective lining of chimney of the present utility model or flue adopts brand-new ductile structure, and fully without fragile material and rigid material, toughness material has high temperature-resistant and acid corrosion-resistant for containing Organic fluoride and silicone resin material.This ductile structure is designed for absorption and brings stress to inner lining material because of chimney height difference variation, thereby avoids the crackle peeling that comes off to produce, and prevents corrosion failure.
Description of drawings
Fig. 1 is the structural representation of embodiment 1.
Label declaration: 1-lining surface layer; 2-lining intermediate layer; The 3-lining is repaired; The 4-acid-proof building block; The 5-expanded perlite; 6-chimney or flue outer wall.
The specific embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details:
As shown in Figure 1, the toughness protective lining of a kind of chimney or flue, toughness protective lining comprise toughness material top layer and the toughness intermediate layer between the inwall of toughness material top layer and chimney or flue.
Between the inwall of toughness intermediate layer and chimney or flue, also be provided with anti-penetration layer.The gross thickness of described toughness protective lining is 1.5～4.5mm.
Flue-gas temperature is 56 ℃ during thermal power plant, Hunan 300MW unit wet desulphurization operation, and flue-gas temperature is 137 ℃ during non-desulfurization operation, and chimney inner condensat liquid body pH minimum 2.7 contains H
2SO
41.63%, HCl 0.018%, HF 0.002%, micro-H
3PO
4Above-mentioned percentage is mass ratio.
Construction embodiment one
Inner wall of stack polishing, flushing, clean surface, treat (moisture content＜6%) round brush high-temperature resin modified epoxy impermeabilisation agent two roads after the dry tack free, form anti-penetration layer, thickness is at 25 μ m～35 μ m, behind the surface drying blemish repaired with elastic rubber material and fill and lead up, two roads, roller coating silicone resin toughness intermediate layer again, thickness is at 1.5mm, in surperficial roller coating silicon rubber toughness surface layer two roads, thickness is at 1.0mm again.Gross thickness is at 2.5mm.Elastic extension 35%.Maintenance was warmed up to 153 ℃ after 7 days when 25 ℃ of temperature, 4 hours curing backing layers.
Construction embodiment two
Inner wall of stack sandblast, dust catcher dedusting, cleaning, brush epoxy silicone resin impermeabilisation agent two road thickness 5 μ m～15 μ m, form anti-penetration layer, flat with modified, high temperature resistant epoxy mortar benefit, polish flat two roads, the carbon of brushing Organic fluoride again intermediate layer, thickness 0.5mm, brushing organic siliconresin 1.0mm, liner thickness 1.5mm, elastic extension 53%.Maintenance was warmed up to 130 ℃ after 10 days when 20 ℃ of temperature, 8 hours curing backing layers.
Construction embodiment three
Inner wall of stack sandblast, water flushing dedusting, dry the back and brush laccol silicones impermeabilisation agent two road thickness 15 μ m～20 μ m, form anti-penetration layer, flat with modified epoxy clay benefit, polish flat two roads, the intermediate layer of brushing Organic fluoride again, thickness 0.8mm, brushing silicone resin 1.5mm, liner thickness 2.3mm, elastic extension 50%.Maintenance was warmed up to 118 ℃ after 13 days when 15 ℃ of temperature, 16 hours curing backing layers.
Construction embodiment four
Inner wall of stack dedusting cleaning, the solvent cleaned surface is also dried the back and is brushed modified vinyl resin impermeabilisation agent two road thickness 15 μ m～20 μ m, form anti-penetration layer, flat with modified vinyl resin-bonded mastic benefit, polish flat, again two roads, brushing organic fluorine intermediate layer, thickness 1.8mm, brushing silicone resin 1.0mm, liner thickness 2.8mm, elastic extension 31%.Maintenance was warmed up to 143 ℃ after 6 days when 30 ℃ of temperature, 6 hours curing backing layers.
Claims (3)
1. the toughness protective lining of chimney or flue is characterized in that the toughness protective lining comprises toughness material top layer and the toughness intermediate layer between the inwall of toughness material top layer and chimney or flue.
2. the toughness protective lining of chimney according to claim 1 or flue is characterized in that, also is provided with anti-penetration layer between the inwall of toughness intermediate layer and chimney or flue.
3. the toughness protective lining of chimney according to claim 1 and 2 or flue is characterized in that, the gross thickness of described toughness protective lining is 1.5～4.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200312062U CN201925940U (en) | 2011-01-28 | 2011-01-28 | Flexible protective lining for chimney or flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200312062U CN201925940U (en) | 2011-01-28 | 2011-01-28 | Flexible protective lining for chimney or flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925940U true CN201925940U (en) | 2011-08-10 |
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ID=44429787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200312062U Expired - Fee Related CN201925940U (en) | 2011-01-28 | 2011-01-28 | Flexible protective lining for chimney or flue |
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| Country | Link |
|---|---|
| CN (1) | CN201925940U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826626A (en) * | 2012-08-13 | 2012-12-19 | 吴江市聚力机械有限公司 | High temperature resistant sewage adsorption rod |
| CN111335579A (en) * | 2020-03-20 | 2020-06-26 | 赵鹏付 | Ceramic plate flue installation process and application thereof |
-
2011
- 2011-01-28 CN CN2011200312062U patent/CN201925940U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826626A (en) * | 2012-08-13 | 2012-12-19 | 吴江市聚力机械有限公司 | High temperature resistant sewage adsorption rod |
| CN111335579A (en) * | 2020-03-20 | 2020-06-26 | 赵鹏付 | Ceramic plate flue installation process and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20140128 |