CN101503799A - Anti-corrosive rubber lining method for chemicals tank and pot - Google Patents
Anti-corrosive rubber lining method for chemicals tank and pot Download PDFInfo
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- CN101503799A CN101503799A CNA2008100335461A CN200810033546A CN101503799A CN 101503799 A CN101503799 A CN 101503799A CN A2008100335461 A CNA2008100335461 A CN A2008100335461A CN 200810033546 A CN200810033546 A CN 200810033546A CN 101503799 A CN101503799 A CN 101503799A
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Abstract
The invention relates to chemical tank and can construction, in particular to the anticorrosion rubber lining for a chemical tank and a chemical can. The invention relates to an anticorrosion rubber lining construction method for the chemical tank and the chemical can. The chemical tank and the chemical can are a steel structure device of which an inner lining is rubber lining. The anticorrosion rubber lining construction method comprises the following steps: step 1, steel structure surface treatment which mainly comprises treatment of the inner surface and welding seams of the steel structure of a tank body and a can body; step 2, the rubber lining construction which mainly comprises charging of the rubber lining, cleaning of a slab rubber, rubber slurry brushing, slab rubber lapping and rubber lining; and step 3, steam vulcanization. The method solves the problem of corroding a steel structure device, prolongs the service life of the device and various steel structured tanks and cans, and has better using effects and economic benefits in the practice.
Description
Technical field
The present invention relates to chemicals tank, jar construction, relate in particular to the anticorrosion line with rubber of chemicals tank, jar.
Background technology
There often have pickling line equipment pickling tank, acid regeneration station equipment acid storage tank, dissolving tank, settling bath to carry out line with rubber in metallurgy industry mechanical means installation project to be anticorrosion, and small-sized storage tank is installed most hot sulfurization line with rubber storage tanks that are.The existing line with rubber often line with rubber undercapacity of constructing, impaired easily, cause steel construction equipment to be corroded, influence work-ing life, maintenance is then wasted time and energy.
Summary of the invention
The present invention is intended to address the deficiencies of the prior art, and the anti-corrosive rubber lining method of a kind of chemicals tank, jar is provided.The invention solves the phenomenon that steel construction equipment is corroded, improved the work-ing life of the various grooves of equipment and steel construction, jar, have result of use and economic benefit preferably in actual applications.
The present invention is achieved in that
A kind of chemicals tank, jar anti-corrosive rubber lining method, described chemicals tank, be lined with the steel construction equipment of line with rubber in jar being, described anti-corrosive rubber lining method comprises the following steps:
Step 1, the steel construction surface treatment: this step mainly comprises to be handled groove, tank body steel construction internal surface and weld seam;
Step 2, the line with rubber construction: this step mainly comprises the blanking of line with rubber, cleaning, brush coating slurry, offset plate overlap joint and the line with rubber of offset plate;
Step 3, steam vulcanization: this step comprises:
A, in vulcanizing boiler, feed steam and carry out the low-temperature atmosphere-pressure sulfuration;
B, curing temperature control are carried out according to the curing temperature graphic representation;
Want in equipment, to place simultaneously sample when c, sulfuration to confirm state of vulcanization at any time;
After d, the hot sulfurization groove, tank body line with rubber are checked have problem to repair comprehensively.
The anti-corrosive rubber lining method of described chemicals tank, jar comprises groove, tank body steel construction internal surface and weld seam processing in the described step 1:
A. all Steel Structure Weld weldering meat are answered full and are polished into slyness excessively, and steel plate corner angle polishing finishing is fillet, and minimum radius is greater than 3mm;
B. the steel construction surface derusting adopts blasting method, and shot-peening is selected quartz sand for use; Humidity during sandblast is below 80%, and can not have dewfall to take place, and derusting grade is Sa2.5; After the sandblast that the dust cleaning is clean, and to steel construction line with rubber surface mopping brushing adhesive slurry.
The anti-corrosive rubber lining method of described chemicals tank, jar comprises in the described step 2 line with rubber construction:
A. blanking: carry out blanking according to groove, tank body physical size, adopt the method for cutting out a piece of cloth in a way with the minimum material to make two or more articles of clothing;
B. clean: with clean-out system offset plate is cleaned up, and the metallic surface is removed clean;
C. brush coating is starched:
The rubber cement proportioning: the proportioning of catalyzer and rubber cement is 7:100～10:100, and described rubber cement is the natural rubber adhesive that configures;
Rubber cement uses: twice rubber cement of each even scrubbing brush on steel construction and offset plate, 2 hours pot lives of allotment; Rubber cement air-dry time first pass is the shortest 2 hours, and second omnipresence guaranteed not touch with one's hand in 10～30 minutes;
D. offset plate overlaps: offset plate overlaps overlapping width between 25～30mm, and 30 ° of angles are splayed at the edge in overlap joint zone, and coarse with the polishing machine polishing, and the zone of polishing is about 40～50mm; Flange face line with rubber overlap joint is smooth;
E. line with rubber
After offset plate brush coating slurry dries, under the tensile situation offset plate is not attached on the steel construction with hand lightly having, will be during the rubberizing plate by medium flow to considering the scrap (bridge) direction, it is straight that scrap (bridge) is wanted; And offset plate is pressed onto on the matrix with the wide dandy roll of 30mm; Will use the roll extrusion of fillet dandy roll on seam, edge and the angle, firmly roll-in equably of a roller one roller in order during roll extrusion has the repetition roll-in face of 0.5～1cm between every roller.
Described chemicals tank, jar anti-corrosive rubber lining method, during the rubber roll roll extrusion, with the chalk zonule of drawing, the zone ground roll-in in a zone.
The anti-corrosive rubber lining method of described chemicals tank, jar in the line with rubber process, will be put thermometer and wet bulb thermometer in groove, the jar, and carry out the record of temperature and humidity, does not have dewfall when guaranteeing line with rubber; The line with rubber personnel enter the footwear that must not be installed with the band nail in groove, the jar.
The anti-corrosive rubber lining method of described chemicals tank, jar, during line with rubber, relative humidity should be greater than 75%, and groove, jar interior temperature should surpass this standard greater than 10 ℃, then open calorifier and dehumidifier in the line with rubber zone.
The anti-corrosive rubber lining method of described chemicals tank, jar also comprises in the described step 3 steam vulcanization:
Insulation is carried out in h, the groove that needs steam vulcanization, tank body outside;
After i, groove, tank body line with rubber finish, steam-pipe is connected on the hot sulfurization tank body, and the on-off control valve is set;
J, fix a drainpipe, and be connected in the inspection shaft of factory building outside at the lowest part of steam vulcanization groove, tank body;
K, on the flange port of the upper and lower of tank body a tensimeter and thermometer are installed respectively, are monitored in sulfidation, the 30 minutes records in every interval once seal other flange hole;
L, a cover steam heating spray tube is installed in tank body;
M, put into 4 test specimens when each tank body vulcanizes, sample dimensions be 300mm * * 15mm, the test specimen line with rubber is put into the different heights of vulcanizing boiler with iron wire from the tank top flange port, and carries out record;
Vapor pressure is 0.3～0.35Mpa when n, hot sulfurization, and vapor pressure is 0.05～0.1Mpa during insulation, and air demand is 0.5m
3/ h finishes sulfuration according to described curing temperature-time.The anti-corrosive rubber lining method of described chemicals tank, jar, described curing temperature curve is:
Elevated temperature is to 40-50 ℃ within six hours, keeps cooling after 12 hours, check described test specimen surface quality after, elevated temperature to 90-100 ℃ up to sulfurizing time.
Described chemicals tank, jar anti-corrosive rubber lining method, described inspection test specimen surface quality and front and back heating-cooling process thereof were finished in 6 hours, and described sulfurizing time is after reaching 90-100 ℃ 45-50 hour.
The present invention utilizes groove, the tank body line with rubber of anti-corrosive rubber lining method to steel construction, has solved the phenomenon that steel construction equipment is corroded, and has improved the work-ing life of the various grooves of equipment and steel construction, jar.Anti-corrosive rubber lining method is adapted to the application of anticorrosion line with rubber of pickling line equipment, acid regeneration station equipment and other industries of metallurgy industry, has result of use and economic benefit preferably in actual applications.
Description of drawings
Fig. 1 is described curing temperature-time plot.
Embodiment
Below, the present invention is described further in conjunction with embodiment:
(1) steel construction surface treatment
1. to groove, tank body steel construction internal surface and weld seam requirement
All Steel Structure Weld weldering meat should be full, and undercut, pore, slag inclusion must not be arranged.All weldering meat polishings should be excessively slick and sly, and steel plate corner angle polishing finishing is fillet, and minimum radius is greater than 3mm.
2. the steel construction surface derusting adopts blasting method, and shot-peening is selected quartz sand for use.
3. the humidity during sandblast is below 80%, and can not have dewfall to take place, and derusting grade is Sa2.5
4. after the sandblast that the dust cleaning is clean, to steel construction line with rubber surface mopping brushing adhesive slurry.
(2) line with rubber construction
1. blanking: carry out blanking according to groove, tank body physical size, adopt and cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing method, reduce consumption.
2. clean: with clean-out system offset plate is cleaned up, and the metallic surface is removed clean.
3. brush coating is starched:
A. rubber cement proportioning: according to natural gum regular convention formula configuration rubber cement, linking agent is a sulphur, and adds catalyzer, and described catalyst levels is 7%～10%.
B. rubber cement uses: respectively brush twice rubber cement on steel construction and offset plate, about 2 hours of the pot life of allotment.Rubber cement air-dry time first pass is the shortest 2 hours, will decide according to the situation of temperature, humidity for second time, generally at 10～30 minutes and do not touch with one's hand just, wants evenly during the brush coating slurry.Relative humidity should be greater than 75% during the line with rubber, and a temperature should be greater than 10 ℃ in groove, the jar.When humidity exceeds standard in order to guarantee that the duration can open calorifier and dehumidifier in the line with rubber zone.
4. offset plate overlaps: offset plate overlaps overlapping width between 25～30mm, and 30 ° of angles should be splayed in the edge in overlap joint zone, and coarse with the polishing machine polishing, and the zone of polishing is about 40～50mm.Flange face line with rubber overlap joint is smooth.
5. line with rubber
A. after offset plate brush coating slurry dries, under the tensile situation offset plate is not attached on the steel construction with hand lightly having, will be during the rubberizing plate by medium flow to considering the scrap (bridge) direction, it is straight that scrap (bridge) is wanted.The dandy roll wide with 30mm is pressed onto offset plate on the matrix.To use firmly roll extrusion of fillet dandy roll (about 3mm is wide) on seam, edge and the angle.Firmly roll-in equably of a roller one roller in order during roll extrusion must have the repetition roll-in face of 0.5～1cm between every roller.For having prevented Lou roller place, the available chalk zonule of drawing, the zone ground roll-in in a zone.
B. in the line with rubber process, to put thermometer and wet bulb thermometer in groove, the jar, and carry out the record of temperature and humidity, must not line with rubber if any dewfall.
C. the line with rubber personnel enter the footwear that must not be installed with the band nail in groove, the jar.
(3) steam vulcanization
Construction requirement
Insulation will be finished in a, the gummed tank that needs steam vulcanization, tank body outside.
After b, groove, tank body line with rubber finish, steam-pipe is connected on the hot sulfurization tank body, and the on-off control valve is set.
C, fix a drainpipe, and be connected in the inspection shaft of factory building outside at the lowest part of steam vulcanization groove, tank body.
D, on the flange port of the upper and lower of tank body, a tensimeter and thermometer are installed respectively, in sulfidation, are monitored, the 30 minutes records in every interval once, other flange hole will seal.
E, a cover steam heating spray tube is installed in tank body.
F, put into 4 test specimens when each tank body vulcanizes, sample dimensions be 300mm * * 15mm, put into the different heights of vulcanizing boiler with iron wire from the tank top flange port behind the test specimen line with rubber, and carry out record.
Vapor pressure is 3～3.5bar when g, hot sulfurization, and vapor pressure is 0.5～1bar during insulation, and air demand is 0.5m
3/ h.
Offset plate hardness after h, the sulfuration will reach design requirements.
Construction procedure
A, in vulcanizing boiler, feed steam and carry out the low-temperature atmosphere-pressure sulfuration.
B, curing temperature control are carried out according to following vulcanization curve figure
Want in equipment, to place simultaneously sample when c, sulfuration to confirm state of vulcanization at any time.
After d, the hot sulfurization groove, tank body line with rubber are checked have problem to repair comprehensively.
Claims (9)
- A chemicals tank, jar anti-corrosive rubber lining method, described chemicals tank, be lined with the steel construction equipment of line with rubber in jar being, it is characterized in that described anti-corrosive rubber lining method comprises the following steps:Step 1, the steel construction surface treatment: this step mainly comprises to be handled groove, tank body steel construction internal surface and weld seam;Step 2, the line with rubber construction: this step mainly comprises the blanking of line with rubber, cleaning, brush coating slurry, offset plate overlap joint and the line with rubber of offset plate;Step 3, steam vulcanization: this step comprises:A, in vulcanizing boiler, feed steam and carry out the low-temperature atmosphere-pressure sulfuration;B, curing temperature control are carried out according to the curing temperature graphic representation;Want in equipment, to place simultaneously sample when c, sulfuration to confirm state of vulcanization at any time;After d, the hot sulfurization groove, tank body line with rubber are checked have problem to repair comprehensively.
- 2. the anti-corrosive rubber lining method of chemicals tank according to claim 1, jar is characterized in that, in the described step 1 groove, tank body steel construction internal surface and weld seam processing is comprised:A. all Steel Structure Weld weldering meat are answered full and are polished into slyness excessively, and steel plate corner angle polishing finishing is fillet, and minimum radius is greater than 3mm;B. the steel construction surface derusting adopts blasting method, and shot-peening is selected quartz sand for use; Humidity during sandblast is below 80%, and can not have dewfall to take place, and derusting grade is Sa2.5; After the sandblast that the dust cleaning is clean, and to steel construction line with rubber surface mopping brushing adhesive slurry.
- 3. the anti-corrosive rubber lining method of chemicals tank according to claim 1, jar is characterized in that, comprises in the described step 2 line with rubber construction:A. blanking: carry out blanking according to groove, tank body physical size, adopt the method for cutting out a piece of cloth in a way with the minimum material to make two or more articles of clothing;B. clean: with clean-out system offset plate is cleaned up, and the metallic surface is removed clean;C. brush coating is starched:The rubber cement proportioning: the proportioning of catalyzer and rubber cement is 7:100～10:100, and described rubber cement is the natural rubber adhesive that configures;Rubber cement uses: twice rubber cement of each even scrubbing brush on steel construction and offset plate, 2 hours pot lives of allotment; Rubber cement air-dry time first pass is the shortest 2 hours, and second omnipresence guaranteed not touch with one's hand in 10～30 minutes;D. offset plate overlaps: offset plate overlaps overlapping width between 25～30mm, and 30 ° of angles are splayed at the edge in overlap joint zone, and coarse with the polishing machine polishing, and the zone of polishing is about 40～50mm; Flange face line with rubber overlap joint is smooth;E. line with rubberAfter offset plate brush coating slurry dries, under the tensile situation offset plate is not attached on the steel construction with hand lightly having, will be during the rubberizing plate by medium flow to considering the scrap (bridge) direction, it is straight that scrap (bridge) is wanted; And offset plate is pressed onto on the matrix with the wide dandy roll of 30mm; Will use the roll extrusion of fillet dandy roll on seam, edge and the angle, firmly roll-in equably of a roller one roller in order during roll extrusion has the repetition roll-in face of 0.5～1cm between every roller.
- According to claim 1 or 3 described chemicals tanks, jar anti-corrosive rubber lining method, it is characterized in that, during the rubber roll roll extrusion, with the chalk zonule of drawing, the zone ground roll-in in a zone.
- According to claim 1 or 3 described chemicals tanks, jar anti-corrosive rubber lining method, it is characterized in that, in the line with rubber process, groove, jar in to put thermometer and wet bulb thermometer, and carry out the record of temperature and humidity, do not have dewfall when guaranteeing line with rubber; The line with rubber personnel enter the footwear that must not be installed with the band nail in groove, the jar.
- 6. the anti-corrosive rubber lining method of chemicals tank according to claim 5, jar is characterized in that during line with rubber, relative humidity should be greater than 75%, and groove, jar interior temperature should surpass this standard greater than 10 ℃, then open calorifier and dehumidifier in the line with rubber zone.
- 7. the anti-corrosive rubber lining method of chemicals tank according to claim 1, jar is characterized in that, also comprises in the described step 3 steam vulcanization:Insulation is carried out in a, the groove that needs steam vulcanization, tank body outside;After b, groove, tank body line with rubber finish, steam-pipe is connected on the hot sulfurization tank body, and the on-off control valve is set;C, fix a drainpipe, and be connected in the inspection shaft of factory building outside at the lowest part of steam vulcanization groove, tank body;D, on the flange port of the upper and lower of tank body a tensimeter and thermometer are installed respectively, are monitored in sulfidation, the 30 minutes records in every interval once seal other flange hole;E, a cover steam heating spray tube is installed in tank body;F, put into 4 test specimens when each tank body vulcanizes, sample dimensions be 300mm * * 15mm, the test specimen line with rubber is put into the different heights of vulcanizing boiler with iron wire from the tank top flange port, and carries out record;Vapor pressure is 0.3～0.35Mpa when g, hot sulfurization, and vapor pressure is 0.05～0.1Mpa during insulation, and air demand is 0.5m 3/ h finishes sulfuration according to described curing temperature-time.
- According to claim 1 or 8 described chemicals tanks, jar anti-corrosive rubber lining method, it is characterized in that described curing temperature curve is:Elevated temperature is to 40-50 ℃ within six hours, keeps cooling after 12 hours, check described test specimen surface quality after, elevated temperature to 90-100 ℃ up to sulfurizing time.
- According to claim 1 or 8 described chemicals tanks, jar anti-corrosive rubber lining method, it is characterized in that, described inspection test specimen surface quality and front and back heating-cooling process thereof were finished in 6 hours, and described sulfurizing time is after reaching 90-100 ℃ 45-50 hour.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100335461A CN101503799A (en) | 2008-02-05 | 2008-02-05 | Anti-corrosive rubber lining method for chemicals tank and pot |
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|---|---|---|---|
| CNA2008100335461A CN101503799A (en) | 2008-02-05 | 2008-02-05 | Anti-corrosive rubber lining method for chemicals tank and pot |
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| CN101503799A true CN101503799A (en) | 2009-08-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921055A (en) * | 2014-03-25 | 2014-07-16 | 贵阳中化开磷化肥有限公司 | Method of repairing phosphoric acid equipment corroded |
| CN110525818A (en) * | 2019-07-31 | 2019-12-03 | 武汉吉隆过滤技术有限公司 | A kind of anti-corrosion slot and preparation method thereof |
-
2008
- 2008-02-05 CN CNA2008100335461A patent/CN101503799A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921055A (en) * | 2014-03-25 | 2014-07-16 | 贵阳中化开磷化肥有限公司 | Method of repairing phosphoric acid equipment corroded |
| CN110525818A (en) * | 2019-07-31 | 2019-12-03 | 武汉吉隆过滤技术有限公司 | A kind of anti-corrosion slot and preparation method thereof |
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Open date: 20090812 |