CN106585041A - Chimney body strong acid anti-corrosion construction method - Google Patents
Chimney body strong acid anti-corrosion construction method Download PDFInfo
- Publication number
- CN106585041A CN106585041A CN201611140347.1A CN201611140347A CN106585041A CN 106585041 A CN106585041 A CN 106585041A CN 201611140347 A CN201611140347 A CN 201611140347A CN 106585041 A CN106585041 A CN 106585041A
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- CN
- China
- Prior art keywords
- derakane
- vinyl ester
- strong acid
- epoxy vinyl
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1808—Handling of layers or the laminate characterised by the laying up of the layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—Coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
- B32B2038/0016—Abrading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/542—Shear strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a chimney body strong acid anti-corrosion construction method. The method comprises the following steps: 1) surface treatment; 2) enclosed layer construction: enclosing a coating on a chimney body substrate with Ashland Derakane TM epoxy vinyl ester resin, uniformly brushing a surface close to a base layer with the Ashland Derakane TM epoxy vinyl ester resin, and attaching a chopped strand mat to a first anti-corrosion layer; brushing the Ashland Derakane TM epoxy vinyl ester resin, paving a chopped stand mat on a second layer which is a permeable layer, and paving 230mm*113mm*15mm high-temperature-resistant strong-acid-resistant ceramic tiles which conform to the Germany FN standard on a third anti-corrosion layer lined with the Ashland Derakane TM epoxy vinyl ester resin. By adopting the chimney body strong acid anti-corrosion construction method provided by the invention, high bonding force between a coating and the substrate, high flexing resistance and high thermal expansion resistance are achieved.
Description
Technical field
The present invention relates to a kind of antiseptic project construction method, more particularly to a kind of chimney stack strong acid anticorrosion construction method.
Background technology
Contain Fluohydric acid. deep-etching gas in containing SO2, HCl, NO2 and salt fog etc., or even the flue gas having in chimney smoke
Exist, these corrosive medium corrosivity are strong, bring serious corrosion to chimney material.These corrosion of SO2, HCl, NO2 in flue gas
Medium but also in sweetening process, has the alternate characteristic of soda acid valency matter, therefore inner wall of stack seriously corroded, it is desired to chimney again
Inner wall anti-corrosive condition requires harsher.In recent years, in chimney air flue inner wall corrosion coating Development Practice, the invention provides
A kind of chimney stack strong acid anticorrosion construction method, according to upper hundred flue gas chimney air flue scene anti-corrosion corrosion conditions, employs new technology,
With reference to new and high technology, the various corrosion of acid-fast alkali-proof, H2S, chloride ion, sulfur dioxide, sulfur trioxide, hydrogen chloride high temperature in anti-flue gas
The dielectric corrosions such as steam, prevent from condensing erosion, stress corrosion, chemical attack, potential corrosion etc..Coating and basal body binding force
Extremely strong, coating also has higher flex stiffiness and thermal expansion antitypy, vibrates in resisting chimney operation, and thermal shock resistance is high,
When flue-gas temperature height changes, high temperature resistant, coating do not fall off, and no crackle is produced, and improve the use longevity of chimney air flue material
Life, lowers consumption to industry energy conservation, it is ensured that enterprise continuously produces.
The content of the invention
The technical scheme that the present invention is adopted to solve above-mentioned technical problem is to provide a kind of chimney stack strong acid anticorrosive construction
Method, wherein, concrete scheme is：
1) it is surface-treated：
To chimney stack matrix using steel wire lump polishing rust cleaning；
2) confining bed construction：
To chimney stack matrix sub- assorted blue Derakane TM epoxy vinyl ester resin seal coats, patch substrate surface elder generation
It is uniform to brush the assorted blue Derakane TM epoxy vinyl ester resins in one layer of Asia, ground floor corrosion-resistant coating patch chopped mat；Repaste brush sub-
Assorted blue Derakane TM epoxy vinyl ester resins, the second layer are permeable formation, and paving chopped mat, third layer anti-corrosion layer paste table
Face felt paving molding, then with the 230 × 113 of the assorted blue Derakane TM epoxy vinyl ester resins lining Germany FN standards in Asia ×
The potsherd paving of the resistance to strong acid of 15mm high temperature resistants.
Above-mentioned chimney stack strong acid anticorrosion construction method, wherein, described sub- assorted blue Derakane TM epoxy vinyl esters
Resin collocation method is：After Asia assorted blue Derakane TM epoxy vinyl ester resins are weighed, first metered initiator, stirs
Metered accelerator again after even, Jing after being sufficiently stirred for, then plus powder stir evenly, you can constructed.
Above-mentioned chimney stack strong acid anticorrosion construction method, wherein, also included that substrate was cleared up and repaired before 1) operation and apply
Work：To substrate cleaning using manual polishing scheme, rapid hardening reinforcing and repairing mortar entirety is passed through to chimney stack stack shell after the completion of polishing
Repaired.
Above-mentioned chimney stack strong acid anticorrosion construction method, wherein, sub- assorted blue Derakane TM epoxy vinyl ester resins are used
Amount no less than 6-8 ㎏/㎡, five face of potsherd is full up glue.
Above-mentioned chimney stack strong acid anticorrosion construction method, wherein, substrate surface daub is smeared on the surface of the substrate with plaster trowel
One layer of 1.5mm thick sub- assorted blue Derakane TM epoxy vinyl ester resins.
Above-mentioned chimney stack strong acid anticorrosion construction method, wherein, preparative work before construction includes, detects chimney stack perpendicularity
With roundness deviation no more than one thousandth, after inwall is levelling, height is no more than 2mm.
The present invention is had the advantages that relative to prior art：
Coating is strong with basal body binding force, has higher flex stiffiness and thermal expansion antitypy, shakes in resisting chimney operation
Dynamic, thermal shock resistance is high, when flue-gas temperature height changes, high temperature resistant, it is not easy to come off, and to a certain degree Crack prevention generation,
The service life of chimney air flue material is improved, is lowered consumption to industry energy conservation, it is ensured that enterprise continuously produces.
Description of the drawings
Fig. 1 is chimney stack structure chart.
In figure：
1 ground floor corrosion-resistant coating, 2 second layer corrosion-resistant coating, 3 third layer anti-corrosion layer, 4 potsherd
Specific embodiment
Construction technology mainly include it is following some：1) prepare before constructing；2) construction details and prescription；3) dispensing notes
Item；4) quality inspection and acceptance specification.
Prepare before construction：
The quality of anticorrosion equipment itself, has an effect that directly affects to the guarantee of liner and anticorrosive quality, thus we
Detailed communication can be carried out before anticorrosive construction to equipment making business, and goes to scene to confirm to check.Matrix surface should reach in advance as
Lower requirement：
1) to ensure that inwall substrate its circularity is smooth；
2) ensure its perpendicularity, perpendicularity and roundness deviation no more than one thousandth when chimney stack is positioned；
3) after inwall is levelling, height is no more than 2mm；
4) acid discharge interface tube, at flange port angle change, the sharp company of acute angle is blunt.And go through whether there is slag inclusion, deep indenture,
Lack weldering etc. phenomenon and process it is up to standard after, corrosion prevention operation can be paid；
5) the support installment work of pipeline must be completed；
6) anticorrosive work of outside is carried out before anticorrosive construction；
7) need to complete all of welding job before anticorrosive construction, during anticorrosive construction and after completion, forbid all Welders
Make.
The weather conditions and working environment of job site are understood in case taking ancillary method and instrument.
1) high-power industrial heaters should be got ready when ambient temperature is less than 15 degree.
2) resin storage repository temperature should make resin reach optimum state equipped with air-conditioning higher than 30 degree and when being less than 15 degree.
3) as this anticorrosive construction belongs to work high above the ground, safety training and body inspection before construction, must be carried out to every workman
Look into, safety consciousness and physical qualification entrance scene inaccurate without exception not up to standard.
Construction details and prescription：
First, it is surface-treated：
1) eliminated rust using steel wire lump polishing, accomplished the end in view.
2) construction of confining bed (primary coat).
3) after polishing, the floating ash of matrix surface carries out primary coat Jing after passed examination after removing, i.e., with the assorted blue Derakane TM in Asia
Epoxy vinyl ester resin sealing treatment.Require to apply without dew, coating uniform, without trickling.
4) patch assorted blue Derakane TM epoxy vinyl ester resins in one layer of Asia of first uniformly brushing in substrate surface, the
One layer of corrosion-resistant coating 1 pastes chopped mat, repastes the sub- assorted blue Derakane TM epoxy vinyl ester resins of brush, and coating is full, the
Two layers of corrosion-resistant coating 2 are permeable formation, and paving chopped mat, third layer anti-corrosion layer 3 paste surface felt paving molding.
5) 230 × 113 × 15mm again with sub- assorted blue Derakane TM epoxy vinyl ester resins lining Germany FN standards is resistance to
The potsherd 4 of the resistance to strong acid of high temperature.
Dispensing points for attention：
1) from sub- assorted blue Derakane TM epoxy vinyl ester resins；
2) after resin is weighed, first metered initiator, metered accelerator again after stirring evenly, Jing after being sufficiently stirred for, then
Plus powder is stirred evenly, you can constructed.(actual amount of initiator and accelerator is according to product size and weather conditions given
In the range of adjust).
3) initiator fully must be being stirred evenly using before.Initiator and accelerator absolutely not allow directly mixing, Yi Mianyin
Play blast.
4) add the resin glue after initiator and accelerator, should be finished as early as possible, otherwise can voluntarily gel.
5) proportion container and instrument should be corrosion-resistant, keep cleaning, be dried, without old clay etc..
If 6) clay has gelling phenomenon be continuing with.
7) dispensing is multiple on a small quantity.
8) little sample testing is first done before constructing determine final formulation.
Quality inspection and acceptance specification：
Visual examination all sites ocular estimate inspection is not allow for following defect.
Bubble：It is not allow for bubble；
Crackle：It is not allow for crackle；
Concavo-convex (or wrinkle)：It is not allow for concavo-convex；
Return white：It is not allow for returning white；
Other：Interlaminar bonding, lining equipment matrix are combined should be firm, is not allow for being layered delamination, and fiber is exposed, cementing
Section, foreign body are mingled with, the obvious unequal phenomenon of color and luster.
Also include following construction：
1) substrate cleaning and reparation：
To guarantee that matrix moisture content meets anticorrosive construction requirement, it is ensured that acidproof brick is pasted onto cleaning, dry, firm substrate
Surface, I is taken charge of to substrate cleaning using manual polishing scheme.
Stack shell is integrally repaired using rapid hardening reinforcing and repairing (impervious) mortar after the completion of polishing.Quick-setting mortar feature is glued
Knotting strength is high, easy construction.
2) primary coat construction：
After substrate cleaning is qualified, priming paint construction is carried out to inner wall of stack.Priming paint construction adopts roll coating process, good to obtain
Painting effect.
Consider, sub- assorted blue Derakane TM epoxy vinyl ester resins consumption is no less than 6-8 ㎏/㎡, five faces of brick
Must full up glue；Substrate surface daub：The thick sub- assorted blue Derakane TM of one layer of 1.5mm are smeared in substrate surface with plaster trowel
Epoxy vinyl ester resin bonding agent；Bonding agent in brickwork joint must be full closely knit, must not have space.
Although the present invention is disclosed as above with preferred embodiment, so which is not limited to the present invention, any this area skill
Art personnel, without departing from the spirit and scope of the present invention, when a little modification and perfect, therefore the protection model of the present invention can be made
Enclose when by being defined that claims are defined.
Claims (6)
1. a kind of chimney stack strong acid anticorrosion construction method, it is characterised in that：
1) it is surface-treated：
To chimney stack matrix using steel wire lump polishing rust cleaning；
2) confining bed construction：
To chimney stack matrix with sub- assorted blue Derakane TM epoxy vinyl ester resin seal coats, substrate surface is pasted first uniform
The assorted blue Derakane TM epoxy vinyl ester resins in one layer of Asia of brushing, ground floor corrosion-resistant coating patch chopped mat；Repaste brush Ya Shilan
Derakane TM epoxy vinyl ester resins, second layer corrosion-resistant coating be permeable formation, paving chopped mat, third layer anti-corrosion layer
Patch surface felt paving molding, then the 230 × 113 of Germany's FN standards is served as a contrast with the assorted blue Derakane TM epoxy vinyl ester resins in Asia
The potsherd paving of the resistance to strong acid of × 15mm high temperature resistants.
2. chimney stack strong acid anticorrosion construction method as claimed in claim 1, it is characterised in that described sub- assorted blue Derakane
TM epoxy vinyl ester resin collocation methods are：After Asia assorted blue Derakane TM epoxy vinyl ester resins are weighed, first measure
Add initiator, metered accelerator again after stirring evenly, Jing after being sufficiently stirred for, then plus powder stir evenly, you can constructed.
3. chimney stack strong acid anticorrosion construction method as claimed in claim 2, it is characterised in that：Also include base before 1) operation
Bottom is cleared up and repairing construction：To substrate cleaning using manual polishing scheme, chimney stack stack shell is added by rapid hardening after the completion of polishing
Gu mending mortar is integrally repaired.
4. chimney stack strong acid anticorrosion construction method as claimed in claim 3, it is characterised in that：Ya Shilan Derakane TM rings
Oxyethylene group ester resin demand is no less than 6-8 ㎏/㎡, five face of potsherd is full up glue.
5. chimney stack strong acid anticorrosion construction method as claimed in claim 4, it is characterised in that：Substrate surface daub, with plastering
Knife smears the thick sub- assorted blue Derakane TM epoxy vinyl ester resin bonding agents of one layer of 1.5mm on the surface of the substrate.
6. chimney stack strong acid anticorrosion construction method as claimed in claim 5, it is characterised in that：Preparative work before construction includes,
, no more than one thousandth, after inwall is levelling, height is no more than 2mm for detection chimney stack perpendicularity and roundness deviation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611140347.1A CN106585041A (en) | 2016-12-12 | 2016-12-12 | Chimney body strong acid anti-corrosion construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611140347.1A CN106585041A (en) | 2016-12-12 | 2016-12-12 | Chimney body strong acid anti-corrosion construction method |
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| Publication Number | Publication Date |
|---|---|
| CN106585041A true CN106585041A (en) | 2017-04-26 |
Family
ID=58597580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611140347.1A Pending CN106585041A (en) | 2016-12-12 | 2016-12-12 | Chimney body strong acid anti-corrosion construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780622A (en) * | 2017-09-22 | 2018-03-09 | 龙正环保股份有限公司 | A kind of anticorrosion of flue duct construction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004232298A (en) * | 2003-01-29 | 2004-08-19 | Nippon Steel Composite Co Ltd | Concrete reinforcing frp member |
| CN201880467U (en) * | 2011-01-11 | 2011-06-29 | 成都龙泉防腐工程有限公司 | Erosion resistant coating structure of desulfuration absorption tower bottom plate |
| CN102400546A (en) * | 2011-10-13 | 2012-04-04 | 重庆大众防腐有限公司 | Glass fiber reinforced plastic anti-corrosion layer spray coating process for anti-corrosion effect of chimneys, flues, other pipelines and containers |
-
2016
- 2016-12-12 CN CN201611140347.1A patent/CN106585041A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004232298A (en) * | 2003-01-29 | 2004-08-19 | Nippon Steel Composite Co Ltd | Concrete reinforcing frp member |
| CN201880467U (en) * | 2011-01-11 | 2011-06-29 | 成都龙泉防腐工程有限公司 | Erosion resistant coating structure of desulfuration absorption tower bottom plate |
| CN102400546A (en) * | 2011-10-13 | 2012-04-04 | 重庆大众防腐有限公司 | Glass fiber reinforced plastic anti-corrosion layer spray coating process for anti-corrosion effect of chimneys, flues, other pipelines and containers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780622A (en) * | 2017-09-22 | 2018-03-09 | 龙正环保股份有限公司 | A kind of anticorrosion of flue duct construction method |
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Application publication date: 20170426 |