CN105536993A - Preparation method for carbon steel anode plate surface modification by using epoxy resin layer to bond glass fibers - Google Patents
Preparation method for carbon steel anode plate surface modification by using epoxy resin layer to bond glass fibers Download PDFInfo
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- CN105536993A CN105536993A CN201510925436.6A CN201510925436A CN105536993A CN 105536993 A CN105536993 A CN 105536993A CN 201510925436 A CN201510925436 A CN 201510925436A CN 105536993 A CN105536993 A CN 105536993A
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- epoxy resin
- carbon steel
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- anode plate
- preparation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/60—Use of special materials other than liquids
- B03C3/64—Use of special materials other than liquids synthetic resins
Abstract
The invention relates to a preparation method for carbon steel anode plate surface modification by using an epoxy resin layer to bond glass fibers. According to the method, a common carbon steel anode plate serves as a base material; after the surface of a base body is polished and subjected to floating rust oxidation layer removal, the anode plate is coated with acid-corrosion-resistant epoxy resin capable of being resistant to the temperature of 110 DEG C or above; and the surface of the anode plate is coated with multiple epoxy resin layers; and bubbles in the coating are removed in a rolling defoaming manner, and a special pressing roller coated with a wool felt layer with the thickness ranging from 2 mm to 3 mm is adopted for pressing when a piece of low-density glass fiber cloth is bonded, so that the bottom layer of the glass fiber cloth is pressed into the upper epoxy resin layer which is not completely solidified. By the adoption of the preparation method, the effect that a formed surface liquid film can be even and stable under the condition of the low washing water amount, and a pole plate can be effectively prevented from dust deposition and scale formation, so that long-term efficient and stable operating of a wet type electric dust removal device is guaranteed.
Description
One, technical field
The invention belongs to atmosphere pollution and administer field, particularly relate to the preparation method of the gluing glass fibre of a kind of epoxy resin layer for steel anode plate surface modifying.
Two, background technology
Wet electrical dust precipitator is arranged in as flue gas terminal abatement equipment after wet desulphurization device, and having the multi-pollutant comprehensive regulation and deep purifying effect, is control PM
2.5, SO
3the important measures of the pollutant emissions such as acid mist, gypsum rain, ammonium salt aerosol, mercury, realize in coal-burning power plant being paid close attention to more and more in ultra-clean discharge.Because of low temperature, high humidity, the acidic nature of smoke treatment, ordinary carbon steel positive plate cannot conform demand, and general dust collecting electrode material adopts the high-grade anti-corrosive alloy materials such as 316L stainless steel, dual phase steel, but cost of investment is relatively high.Simultaneously; under same washing water quantity condition; because of the machined deviations from planarity of rigid material own and surface tension effects; moisture film easily forms channel on positive plate surface, still exists gathering dust in deashing process like this: for rinsing water resource waste that the thorough surface washing water yield causes greatly, the positive plate surface uneven residual dust of moisture film forms the problems such as the shutdown flushing operation defect that " dry spot point " cause " spark discharge " fault, most equipment to adopt.
For solving corrosion and the uniform problem of moisture film of wet electrical dust precipitator positive plate, Chinese patent 201210516014.X proposes based on a kind of solid anodes plate generally adopted by electric cleaner, positive plate surface can increase through hydrophilic agent application pretreatment rear surface, and design corresponding moisture film arrangement, realize surperficial moisture film uniform; Chinese patent 201310528825.6 proposes a kind of single dust collector pole plate hanging the fibrage films such as coated carbon fiber, silica fibre, polypropylene fibre or terylene at heat resistant plastice and ceramic material surfaces, during use, two panels dust collector pole plate is fitted the pole plate of assembling, intermediate arrangement recirculated water relatively; Chinese patent 201310267541.6 proposes a kind of outside employing concrete dynamic modulus flaggy, the inner compound dust collecting pole plate adopting knit layer, and utilize the difference of interior exterior materials voidage, internal layer is flowing water from top to bottom, forms uniform water film at outer surface penetration; The fabric dust collecting electrode adopting corrosion-resistant material to make in addition is applied just gradually in thermal power plant, fabric dust collecting electrode light weight, current pass through capillarity, surface moisture film can be uniform, up to the present, the ubiquitous anode of wet scrubber adopts the defects such as high alloy material cost is high, the surface washing water yield large, flushing moisture film skewness, for this reason, seek anode material or conventional anode material surface modifying reasonable process, promoting surperficial moisture film even, is a wet electrical dust precipitator key technology difficult problem urgently to be resolved hurrily.
Three, summary of the invention
The object of the invention is with ordinary carbon steel solid pole plate for base material, solve the problem of ordinary carbon steel positive plate decay resistance and hydrophilicity difference, propose the preparation method of the gluing glass fibre of a kind of epoxy resin layer for steel anode plate surface modifying.
Epoxy resin layer viscose fiber glass fibre is used for a preparation method for steel anode plate surface modifying, and the step of this preparation method is as follows:
(1) with ordinary carbon steel positive plate for base material; Mechanical derusting and derusting by sandblasting is adopted, matrix surface polishing de-floating rust oxide layer before spraying;
(2) on ordinary carbon steel positive plate, under room temperature environment (25 DEG C), be coated with and scrape heatproof more than 110 DEG C and the epoxy resin of acid corrosion-resistant, epoxy resin, cobalt iso-octoate promoter, methyl ethyl ketone peroxide curing agent in mass ratio routine 100:1:2 add, and resin demand is 100 ~ 130mL/m
2;
(3) epoxy resin layer is scraped in the painting of ordinary carbon steel positive plate surface, thickness in monolayer is 0.03 ~ 0.05mm, be coated with after first cold curing again and scrape second coating, be no less than 24 hours interval time, the bubble that twice coating all adopts roll extrusion froth breaking mode to carry out coating inside is eliminated; After the cold curing of second coating, coating third layer epoxy resin, under room temperature (25 DEG C), place 16 ~ 20h, shellring epoxy layer THICKNESS CONTROL is at 0.10 ~ 0.13mm;
(4) low density material selected by gluing glass fabric, and fiber cloth type of weave is loose plain weave, thickness 0.1 ~ 0.3mm, surface density 130 ~ 200g/cm
2;
(5) adherent glass fiber cloth adopts the special pressure roller compacting of outsourcing one deck 2 ~ 3mm wool felt, during pressure roller pressed glass fiber cloth, pressure is 30 ~ 50N, glass fabric bottom is made to be pressed in the third layer epoxy resin upper strata of not thoroughly solidification, place 3 ~ 5 days at ambient temperature, adhesion layer is thoroughly solidified.
The gluing glass fibre of a kind of epoxy resin layer of the present invention is used for the preparation method of steel anode plate surface modifying, and its advantage is:
Ordinary carbon steel positive plate selected by base material, and can realize long-term heatproof more than 110 DEG C and acidproof, resistance to chlorine corrosion after adopting epoxy resin layer coated, material is anti-corrosion, and grade significantly promotes; Steel anode plate is after the gluing glass fibre of epoxy resin layer, and surface has a large amount of capillary channels, and hydrophilicity significantly strengthens, and drop is minimum with the contact angle on surface; Liquid under gravity and capillary force effect along the whole surface of the rapid spreading wetting of fiber capillary channel, reduction by 50 ~ 70% compared with former anode surface cloth film water amount; The drop that desulfurization fume carries is caught on positive plate surface, rapid permeability can maintain positive plate surface to fiber cloth inside and be in uniform wet state all the time, harden without dust, dry spot phenomenon, overcome former steel anode surface moisture film deashing to wash away and thoroughly fouling does not occur, cause a difficult problem for electric field " spark discharge " and " flashover ".
The gluing glass fibre of epoxy resin layer is adopted to be used for steel anode plate surface modifying method, epoxy resin is not corroded as anti-corrosion layer protection base material carbon steel, stick glass fabric as binding agent, the glass fibre upper epidermis after sticking is rarefaction simultaneously, retains capillary channel; The present invention can under low washing water quantity condition, and the surperficial liquid film of formation is even, stable, can effectively prevent pole plate ash deposit and slag buildup, thus ensures long-term efficient, the stable operation of wet electrical dust precipitator, has obvious economic and social benefits.
Four, accompanying drawing explanation
Fig. 1 is anode plate device structural representation, and Fig. 2 is anode plate device side-looking structural representation, and Fig. 3 is positive plate cross-sectional view, and Fig. 4 is positive plate bottom fixed muffle side-looking structural representation.
In figure: 1 be anode-supported beam, 2 be positive plate hook, 3 be positive plate perforate backplate, 4 be positive plate, 5 be positive plate lower holding bolt, 6 be positive plate bottom positioning groove plate, 7 be positive plate fixed sheath, 8 be glass fabric, 9 be epoxy resin layer, 10 be steel anode plate substrate, 11 for positive plate fixed muffle.
Five, detailed description of the invention
A specific embodiment of the present invention is provided below in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4.
On the basis of steel anode plate substrate 10, scrape the gluing glass fabric 8 of epoxy resin layer 9 by being coated with, composition positive plate 4, is provided with the positive plate perforate backplate 3 of perforate on the top of positive plate, is hung over by positive plate on the positive plate hook 2 on anode-supported beam 1; Positive plate 4 lower end is spacing by positive plate bottom positioning groove plate about 6, with positive plate fixed sheath 7, the positive plate fixed muffle 11 being symmetrically distributed in both sides and positive plate lower holding bolt 5 fixation.After desulfurization, wet flue gas enters wet scrubber, flows through the electrostatic field be made up of positive plate and discharge electrode, after particle is charged, under the effect of electric field force, and pole plate surface migration on the sunny side, the final polar board surface that arrives completes trapping process; A large amount of droplet particles things, at glass fabric surface settlement, under capillary force effect, immerses capillary channel scattering and permeating rapidly, finally forms uniform water film, maintain whole positive plate surface and be in moisture state all the time, prevent dry spot district; Glass fabric receiving fluids is limited in one's ability, and when drop is enriched to a certain degree, unnecessary liquid is downward neous flow under gravity, and form liquid film and wash away totally by the solids being enriched to glass fabric surface, holding anode plate cleans; Anode flushing water is regularly controlled to start by PLC according to certain frequency, and flushing water, can in the diffusion rapidly of positive plate surface under gravity and capillary force effect, and moisture film forms corrugated laminar flow at polar board surface and finally washes away thoroughly by polar board surface solids; Flushing water flows automatically to ash bucket, finally enters desulfurizing tower melt pit, enters desulphurization system, non-wastewater discharge as tower Inner eycle replenisher.
Claims (1)
1. be used for a preparation method for steel anode plate surface modifying with epoxy resin layer viscose fiber glass fibre, it is characterized in that the step of this preparation method is as follows:
(1) with ordinary carbon steel positive plate for base material; Mechanical derusting and derusting by sandblasting is adopted, matrix surface polishing de-floating rust oxide layer before spraying;
(2) on ordinary carbon steel positive plate, painting scrapes heatproof more than 110 DEG C and the epoxy resin of acid corrosion-resistant, and epoxy resin, cobalt iso-octoate promoter, methyl ethyl ketone peroxide curing agent in mass ratio routine 100:1:2 add, and resin demand is 100 ~ 130mL/m
2;
(3) epoxy resin layer is scraped in the painting of ordinary carbon steel positive plate surface, thickness in monolayer is 0.03 ~ 0.05mm, be coated with after first cold curing again and scrape second coating, be no less than 24 hours interval time, the bubble that twice coating all adopts roll extrusion froth breaking mode to carry out coating inside is eliminated; After the cold curing of second coating, coating third layer epoxy resin, under room temperature (25 DEG C), place 16 ~ 20h, shellring epoxy layer THICKNESS CONTROL is at 0.10 ~ 0.13mm;
(4) low density material selected by gluing glass fabric, and fiber cloth type of weave is loose plain weave, thickness 0.1 ~ 0.3mm, surface density 130 ~ 200g/cm
2;
(5) adherent glass fiber cloth adopts the special pressure roller compacting of outsourcing one deck 2 ~ 3mm wool felt, during pressure roller pressed glass fiber cloth, pressure is 30 ~ 50N, glass fabric bottom is made to be pressed in the epoxy resin upper strata of thoroughly not solidifying in the 3rd road, place 3 ~ 5 days at ambient temperature, adhesion layer is thoroughly solidified.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510925436.6A CN105536993B (en) | 2015-12-10 | 2015-12-10 | A kind of preparation method for being used for steel anode plate surface modifying with the gluing glass fibre of epoxy resin layer |
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|---|---|---|---|
| CN201510925436.6A CN105536993B (en) | 2015-12-10 | 2015-12-10 | A kind of preparation method for being used for steel anode plate surface modifying with the gluing glass fibre of epoxy resin layer |
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| CN105536993A true CN105536993A (en) | 2016-05-04 |
| CN105536993B CN105536993B (en) | 2017-12-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894278A (en) * | 2019-03-07 | 2019-06-18 | 佛山市合益电子商务有限公司 | A kind of high-voltage electrostatic dust-collecting structure |
| CN110479491A (en) * | 2019-08-23 | 2019-11-22 | 珠海格力电器股份有限公司 | A kind of electrostatic precipitator free of cleaning |
| CN112718249A (en) * | 2021-01-26 | 2021-04-30 | 广东韶钢松山股份有限公司 | Repairing method of anode plate of electric dust collector |
Citations (8)
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|---|---|---|---|---|
| CN2236942Y (en) * | 1995-06-08 | 1996-10-09 | 刘建堂 | Electric conduction glass fibre reinforced plastic composite structure board |
| CN2288354Y (en) * | 1996-12-30 | 1998-08-19 | 中国科学院广州能源研究所 | Semi-wet vertical box type electric duster |
| WO2003037622A1 (en) * | 2001-11-01 | 2003-05-08 | Ionphase Oy | Electrically conductive covering material |
| CN1775879A (en) * | 2005-12-13 | 2006-05-24 | 山东电力研究院 | Flue gas purified anticorrosive conductive coating |
| CN102000634A (en) * | 2009-08-28 | 2011-04-06 | 上海超惠通风环保设备有限公司 | Conductive glass steel material for wet electric dust catcher |
| CN102883789A (en) * | 2010-05-07 | 2013-01-16 | 日本宝翎株式会社 | Electrically charged filter and mask |
| CN102989587A (en) * | 2012-12-27 | 2013-03-27 | 昊华中意玻璃钢有限公司 | Conductive fiberglass reinforced polyester anode tube and preparation method thereof |
| CN103764293A (en) * | 2011-03-28 | 2014-04-30 | 磁力技术涡轮声波公司 | Erosion-resistant conductive composite material collecting electrode for WESP |
-
2015
- 2015-12-10 CN CN201510925436.6A patent/CN105536993B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2236942Y (en) * | 1995-06-08 | 1996-10-09 | 刘建堂 | Electric conduction glass fibre reinforced plastic composite structure board |
| CN2288354Y (en) * | 1996-12-30 | 1998-08-19 | 中国科学院广州能源研究所 | Semi-wet vertical box type electric duster |
| WO2003037622A1 (en) * | 2001-11-01 | 2003-05-08 | Ionphase Oy | Electrically conductive covering material |
| CN1775879A (en) * | 2005-12-13 | 2006-05-24 | 山东电力研究院 | Flue gas purified anticorrosive conductive coating |
| CN102000634A (en) * | 2009-08-28 | 2011-04-06 | 上海超惠通风环保设备有限公司 | Conductive glass steel material for wet electric dust catcher |
| CN102883789A (en) * | 2010-05-07 | 2013-01-16 | 日本宝翎株式会社 | Electrically charged filter and mask |
| CN103764293A (en) * | 2011-03-28 | 2014-04-30 | 磁力技术涡轮声波公司 | Erosion-resistant conductive composite material collecting electrode for WESP |
| CN102989587A (en) * | 2012-12-27 | 2013-03-27 | 昊华中意玻璃钢有限公司 | Conductive fiberglass reinforced polyester anode tube and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894278A (en) * | 2019-03-07 | 2019-06-18 | 佛山市合益电子商务有限公司 | A kind of high-voltage electrostatic dust-collecting structure |
| CN110479491A (en) * | 2019-08-23 | 2019-11-22 | 珠海格力电器股份有限公司 | A kind of electrostatic precipitator free of cleaning |
| CN112718249A (en) * | 2021-01-26 | 2021-04-30 | 广东韶钢松山股份有限公司 | Repairing method of anode plate of electric dust collector |
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|---|---|
| CN105536993B (en) | 2017-12-12 |
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