CN108499347A - The glass flake composite anti-corrosive technique of ammonia process desulfuration tower - Google Patents
The glass flake composite anti-corrosive technique of ammonia process desulfuration tower Download PDFInfo
- Publication number
- CN108499347A CN108499347A CN201810311465.7A CN201810311465A CN108499347A CN 108499347 A CN108499347 A CN 108499347A CN 201810311465 A CN201810311465 A CN 201810311465A CN 108499347 A CN108499347 A CN 108499347A
- Authority
- CN
- China
- Prior art keywords
- glass flake
- thickness
- sandblasting
- tower
- vinylite
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The present invention relates to desulfurizing towers to fabricate field, and the glass flake composite anti-corrosive technique of specifically a kind of ammonia process desulfuration tower includes the following steps：Include the following steps：1）Inspection needs corrosion-resistant surface；2）Sandblasting；3）Brush primary coat；4）Corrosion protective lining is constructed；5）It checks；6）Processing to defective work.Anticorrosion process operating process of the present invention is simple, and the cost of material is low, favorable anti-corrosion effect.
Description
Technical field
The present invention relates to desulfurizing towers to fabricate field, the glass flake composite anti-corrosive work of specifically a kind of ammonia process desulfuration tower
Skill.
Background technology
Desulfurizing tower is the equipment for carrying out desulfurization process to industrial waste gas, is the important equipment in chemical industry equipment, desulfurizing tower is
A kind of desulfuration efficiency is high, the desulphurization plant of the lower simultaneous energy dedusting of the pressure loss.
Desulfurizing tower has evolved into spraying type, Venturi type, eddy flow template, eddy flow column type, floating ball by improvement for many years
Various types of desulfurizing towers, the equipment and technologies such as type, sieve plate type, Pneumatic emulsifying type reach its maturity.
The desulfurizing tower of spraying type is one of the most widely used desulfurizing tower type, using akaline liquid as carrier, by cigarette
The harmful substances such as dirt, sulfur dioxide, hydrocarbon in gas separating treatment from flue gas absorbs sedimentation, finally reaches purification
The purpose of flue gas.
Wherein, the ammonia process of desulfurization is a kind of efficient, low power consuming wet desulphurization mode, and sweetening process is gas-liquid phase reaction, instead
Answer rate fast, absorbent utilization rate is high, and it is more than 20% that can keep desulfuration efficiency 95-99%, the solubility of ammonia in water.
There are some sour gas inside desulfurizing tower, have the function of corrosion to desulfurization inner wall of tower, in addition, impurity therein
Particle can cause to scratch to desulfurization inner wall of tower, to influence the service life of desulfurizing tower.
Invention content
The technical problem to be solved by the present invention is to overcome the defects of the prior art, provide a kind of glass squama of ammonia process desulfuration tower
Piece composite anti-corrosive technique.
In order to solve the above technical problem, the present invention provides the following technical solutions：
A kind of glass flake composite anti-corrosive technique of ammonia process desulfuration tower, includes the following steps：
1）Inspection needs corrosion-resistant surface
Weld seam processing on the component of desulfurizing tower is in the arc-shaped, and the transverse direction of all liners, longitudinal seam need continuously, and with the table that connects
Face keeps smooth；
Surface soldered defect is filled up such as crack, recess by welding again, keeps smooth with neighbouring surface；
All welding slags on surface are removed, by the way of cutting, are finally polishing to smooth；
The turning of all liners and edge processing are in the arc-shaped；
2）Sandblasting
Need the metal surface of liner that should carry out blasting treatment according to specification, blast media selects quartz sand, quartz sand that should clean
Dry, compressed air removes oil removing, dirt and moisture content, and for the pressure control of compressed air in 0.6~1Mpa, sandblasting reaches Sa2.5
Grade,
The surface of primary coat is brushed, near zone is needed until the region of brush primary coat is tack-free, then carries out sandblasting；
It to be cleaned after sandblasting, fully remove dust；
3）Brush primary coat
Primary coat material selection crosslinking agent is uniformly brushed with hair rolling or hairbrush in sand blasted surface, to be accomplished without siltation, stream
It hangs or the irregular phenomenon of thickness occurs；
4）Corrosion protective lining is constructed
After desulfurization inner wall of tower whole brush primary coat, start corrosion protective lining construction,
4.1）1 is pressed with vinylite and talcum powder:3 ratio is mixed into putty, not pad in tower body and weld seam bumps
Flat place, uniformly smears into burnishing surface or arcwall face, waits for corrosion protective lining construction,
4.2）The reconciliation of lining material, is mixed in a certain ratio vinylite and glass flake plasticine, wherein temperature exists
At 35 DEG C -25 DEG C, the ratio of vinylite and glass flake plasticine is 5:1, temperature is at 24 DEG C -15 DEG C, vinyl
The ratio of resin and glass flake plasticine is 8:1, temperature is at 14 DEG C -10 DEG C, vinylite and glass flake plasticine
Ratio be 10:1, temperature is at 10 DEG C--10 DEG C, dosage≤5% of glass flake, then adds 3 parts of curing agent, promotes
1-5 parts of agent with blender adequately stir evenly for use after reconciliation,
4.3）Lining construction main points are rolled above-mentioned lining material brushing with hair in base coating surface, ready glass fibre
In cloth tiling, then with hair rolling lining material is dipped, gently roller coating is on glass fabric, then with plastic scrapers glass fabric
Interior removal of bubbles, according to said method sets gradually multilayer woven glass fabric, until anti-corrosion thickness reaches 1.8-2.2 millimeters,
4.4）After anti-corrosion reaches thickness, in desulfurizing tower at downward 1 meter of the bottom surface of spray beam, continue to brush 2 millimeters on erosion resistant coating
Silicon carbide wearing layer；At in desulfurizing tower inlet flue duct and inlet flue duct bottom edge is 3-5 meters upward, continue brushing 1 on erosion resistant coating
Millimeter silicon carbide wearing layer；Desulfurizing tower bottom oxide section continues to brush 1 millimeter silicon carbide wearing layer on erosion resistant coating；Silicon carbide
Vinylite and carborundum powder are pressed 3 by the reconciliation of wearing layer:1 ratio mixing, then adds 3 parts of curing agent and accelerating agent
It 1-3 parts, is adequately stirred with blender after reconciliation；
5）It checks：
5.1）Visual examination：Visually, finger, which touches, checks the defects of confirming without bubbling, scar, bad hardening；
5.2）Earth detection：It is scanned, voltage 8000V, is confirmed without electric leakage comprehensively using high voltage low cycle electrical Spark plug optical fiber sensor instrument；
5.3）Film thickness inspection:Using electro-magnetic thickness gage, per 2m2It surveys at one, confirms liner thickness；
6）Processing to defective work：
Thickness must be supplied at thickness deficiency；There are the places of protrusion, injurious surface mark, bubble to ensure thickness not less than minimum thickness
In the case of, it is polished with angle grinder；To electric leakage, bubbling, stripping place, to remove after defect by repairing main points repairing.
Interior reinforcing member that desulfurizing tower includes, additional firmware, support element all should be welded to tower wall before lining construction starts.
Provisional support or hanging ring needs to remove before lining construction, and the region is polished smoothly.
When the relative humidity of working region is more than 85%, sandblasting cannot carry out.
If sandblasting rear surface is got rusty, region of getting rusty should be according to requiring sandblasting again.
In summer rainy weather, it is necessary to sandblasting face be cleaned up before raining, timely round brush primary coat prevents the life that drenches with rain
Rust；In case of surface oxidisation, region of getting rusty should be according to requiring sandblasting again；Spring, autumn, three season of winter, air is relatively dry, specifically
The time interval of derusting by sandblasting and brush primary coat is subject to sandblasting rear surface without floating rust.
The advantageous effect that is reached of the present invention is：
After technique according to the invention carries out anticorrosive construction, desulfurization inner wall of tower wear-and corrosion-resistant improves service life.
Anticorrosion process operating process of the present invention is simple, and the cost of material is low, favorable anti-corrosion effect.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structure chart of the desulfurization inner wall of tower after anticorrosion process is constructed.
In figure：1, desulfurization tower wall；2, priming coat；3, erosion resistant coating；4, silicon carbide wearing layer.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment：
A kind of glass flake composite anti-corrosive technique of ammonia process desulfuration tower, includes the following steps：
1）Inspection needs corrosion-resistant surface
Weld seam processing on the component of desulfurizing tower is in the arc-shaped, and the transverse direction of all liners, longitudinal seam need continuously, and with the table that connects
Face keeps smooth；
Surface soldered defect is filled up such as crack, recess by welding again, keeps smooth with neighbouring surface；
All welding slags on surface are removed, by the way of cutting, are finally polishing to smooth；
The turning of all liners and edge processing are in the arc-shaped；
Interior reinforcing member that desulfurizing tower includes, additional firmware, support element all should be welded to tower wall before lining construction starts；
Provisional support or hanging ring needs to remove before lining construction, and the region is polished smoothly.
2）Sandblasting
Need the metal surface of liner that should carry out blasting treatment according to specification, blast media selects quartz sand, quartz sand that should clean
Dry, compressed air removes oil removing, dirt and moisture content, and the air pressure of compressed air is 0.8Mpa, and sandblasting reaches Sa2.5 grades,
The surface of primary coat is brushed, near zone is needed until the region of brush primary coat is tack-free, then carries out sandblasting；
It to be cleaned after sandblasting, fully remove dust；
When the relative humidity of working region is more than 85%, sandblasting cannot carry out；
If sandblasting rear surface is got rusty, region of getting rusty should be according to requiring sandblasting again.
3）Brush primary coat
Primary coat material selection crosslinking agent is uniformly brushed with hair rolling or hairbrush in sand blasted surface, to be accomplished without siltation, stream
It hangs or the irregular phenomenon of thickness occurs, the thickness of priming coat is 0.5 millimeter.
In summer rainy weather, it is necessary to sandblasting face be cleaned up before raining, timely round brush primary coat prevents the life that drenches with rain
Rust；In case of surface oxidisation, region of getting rusty should be according to requiring sandblasting again；Spring, autumn, three season of winter, air is relatively dry, specifically
The time interval of derusting by sandblasting and brush primary coat is subject to sandblasting rear surface without floating rust.
4）Corrosion protective lining is constructed：
After desulfurization inner wall of tower whole brush primary coat, start corrosion protective lining construction, anti-corrosion material is selected：Vinylite resin 850#,
Medium temperature, high-temperature scale clay, platinum alkali-free glass fiber cloth.
4.1）1 is pressed with vinylite and talcum powder:3 ratio is mixed into putty, and pad in tower body and weld seam is recessed
At convex injustice, burnishing surface or arcwall face are uniformly smeared into, waits for corrosion protective lining construction.
4.2）The reconciliation of lining material, is mixed in a certain ratio vinylite and glass flake plasticine, wherein temperature
At 35 DEG C -25 DEG C, the ratio of vinylite and glass flake plasticine is 5:1, temperature is at 24 DEG C -15 DEG C, second
The ratio of ene based resins and glass flake plasticine is 8:1, temperature is at 14 DEG C -10 DEG C, vinylite and glass flake
The ratio of clay is 10:1, temperature is at 10 DEG C--10 DEG C, dosage≤5% of glass flake, then adds 3 parts of curing agent,
3 parts of accelerating agent with blender adequately stir evenly for use after reconciliation,
4.3）Lining construction main points are rolled above-mentioned lining material brushing with hair in base coating surface, ready glass fibre
In cloth tiling, then with hair rolling lining material is dipped, gently roller coating is on glass fabric, then with plastic scrapers glass fabric
Interior removal of bubbles, according to said method sets gradually multilayer woven glass fabric, until anti-corrosion thickness reaches 2 millimeters.
4.4）After anti-corrosion reaches thickness, in desulfurizing tower at downward 1 meter of the bottom surface of spray beam, continue brushing 2 on erosion resistant coating
The silicon carbide wearing layer of millimeter；At in desulfurizing tower inlet flue duct and inlet flue duct bottom edge is 3-5 meters upward, continue to apply on erosion resistant coating
Brush 1 millimeter silicon carbide wearing layer；Desulfurizing tower bottom oxide section continues to brush 1 millimeter silicon carbide wearing layer on erosion resistant coating；Carbon
Vinylite and carborundum powder are pressed 3 by the reconciliation of SiClx wearing layer:Then 1 ratio mixing is added 3 parts of curing agent and is promoted
Into 3 parts of agent, adequately stirred with blender after reconciliation.
5）It checks：
5.1）Visual examination：Visually, finger, which touches, checks the defects of confirming without bubbling, scar, bad hardening.
5.2）Earth detection：It is scanned, voltage 8000V, is confirmed without leakage comprehensively using high voltage low cycle electrical Spark plug optical fiber sensor instrument
Electricity.
5.3）Film thickness inspection:Using electro-magnetic thickness gage, per 2m2It surveys at one, confirms liner thickness.
6）Processing to defective work：
Thickness must be supplied at thickness deficiency；There are the places of protrusion, injurious surface mark, bubble to ensure thickness not less than minimum thickness
In the case of, it is polished with angle grinder；To electric leakage, bubbling, stripping place, to remove after defect by repairing main points repairing.
As shown in Figure 1, the structure of desulfurization inner wall of tower includes the desulfurization tower wall 1 set gradually, primary coat after the completion of anticorrosive construction
Layer 2, erosion resistant coating 3, silicon carbide wearing layer 4.
Claims (5)
1. a kind of glass flake composite anti-corrosive technique of ammonia process desulfuration tower, which is characterized in that include the following steps：
1）Inspection needs corrosion-resistant surface
Weld seam processing on the component of desulfurizing tower is in the arc-shaped, and weld seam is continuous, and keeps smooth with the surface that connects；
Surface soldered defect is filled up by welding again, keeps smooth with neighbouring surface；
All welding slags on surface are removed, by the way of cutting, are finally polishing to smooth；
The turning of all liners and edge processing are in the arc-shaped；
2）Sandblasting
Blast media selects quartz sand, quartz sand that should clean drying, and compressed air removes oil removing, dirt and moisture content, compressed air
For pressure control in 0.6~1Mpa, sandblasting reaches Sa2.5 grades,
The surface of primary coat is brushed, near zone is needed until the region of brush primary coat is tack-free, then carries out sandblasting；
It to be cleaned after sandblasting, fully remove dust；
3）Brush primary coat
With hair rolling or hairbrush uniformly brushed, to accomplish no siltation, sagging or thickness it is irregular phenomenon generation；
4）Corrosion protective lining is constructed
4.1）1 is pressed with vinylite and talcum powder:3 ratio is mixed into putty, not pad in tower body and weld seam bumps
Flat place, uniformly smears into burnishing surface or arcwall face, waits for corrosion protective lining construction,
4.2）The reconciliation of lining material, is mixed in a certain ratio vinylite and glass flake plasticine, temperature 35 DEG C-
At 25 DEG C, the ratio of vinylite and glass flake plasticine is 5:1, temperature at 24 DEG C -15 DEG C, vinylite and
The ratio of glass flake plasticine is 8:1, temperature is at 14 DEG C -10 DEG C, the ratio of vinylite and glass flake plasticine
It is 10:1, temperature is at 10 DEG C-- 10 DEG C, dosage≤5% of glass flake, then adds 3 parts of curing agent, accelerating agent 1-5
Part, with blender adequately stir evenly for use after reconciliation,
4.3）Lining construction main points are rolled above-mentioned lining material brushing with hair in primed surface, ready glass fabric
In tiling, then with hair rolling lining material is dipped, gently roller coating is on glass fabric, then with plastic scrapers in glass fabric
Removal of bubbles, according to said method set gradually multilayer woven glass fabric, until anti-corrosion thickness reaches 1.8-2.2 millimeters,
4.4）After anti-corrosion reaches thickness, in desulfurizing tower at downward 1 meter of the bottom surface of spray beam, continue to brush 2 millimeters on erosion resistant coating
Silicon carbide wearing layer；At in desulfurizing tower inlet flue duct and inlet flue duct bottom edge is 3-5 meters upward, continue brushing 1 on erosion resistant coating
Millimeter silicon carbide wearing layer；Desulfurizing tower bottom oxide section continues to brush 1 millimeter silicon carbide wearing layer on erosion resistant coating；Silicon carbide
Vinylite and carborundum powder are pressed 3 by the reconciliation of wearing layer:1 ratio mixing, then adds 3 parts of curing agent and accelerating agent
It 1-3 parts, is adequately stirred with blender after reconciliation；
5）It checks：
5.1）Visual examination：Visually, finger, which touches, checks confirmation without bubbling, scar, the undesirable defect of hardening；
5.2）Earth detection：It is scanned, voltage 8000V, is confirmed without electric leakage comprehensively using high voltage low cycle electrical Spark plug optical fiber sensor instrument；
5.3）Film thickness inspection:Using electro-magnetic thickness gage, per 2m2It surveys at one, confirms liner thickness；
6）Processing to defective work：
Thickness must be supplied at thickness deficiency；There are the places of protrusion, injurious surface mark, bubble to ensure thickness not less than minimum thickness
In the case of, it is polished with angle grinder；To electric leakage, bubbling, stripping place, to remove after defect by repairing main points repairing.
2. the glass flake composite anti-corrosive technique of ammonia process desulfuration tower according to claim 1, which is characterized in that desulfurizing tower packet
Interior reinforcing member, additional firmware, the support element included all should be welded to tower wall before lining construction starts.
3. the glass flake composite anti-corrosive technique of ammonia process desulfuration tower according to claim 1, which is characterized in that provisional
Support or hanging ring need to remove before lining construction, and the region is polished smoothly.
4. the glass flake composite anti-corrosive technique of ammonia process desulfuration tower according to claim 1, which is characterized in that work as workspace
When the relative humidity in domain is more than 85%, sandblasting cannot carry out.
5. the glass flake composite anti-corrosive technique of ammonia process desulfuration tower according to claim 1, which is characterized in that if sandblasting
Rear surface is got rusty, and region of getting rusty should be according to requiring sandblasting again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810311465.7A CN108499347A (en) | 2018-04-09 | 2018-04-09 | The glass flake composite anti-corrosive technique of ammonia process desulfuration tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810311465.7A CN108499347A (en) | 2018-04-09 | 2018-04-09 | The glass flake composite anti-corrosive technique of ammonia process desulfuration tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108499347A true CN108499347A (en) | 2018-09-07 |
Family
ID=63380824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810311465.7A Pending CN108499347A (en) | 2018-04-09 | 2018-04-09 | The glass flake composite anti-corrosive technique of ammonia process desulfuration tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108499347A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110898635A (en) * | 2019-11-20 | 2020-03-24 | 中国化学工程第三建设有限公司 | Thermal power plant desulphurization device glass scale anti-corrosion maintenance construction method |
| CN111380378A (en) * | 2020-03-18 | 2020-07-07 | 山东凯泰科技股份有限公司 | Combined type corrosion-resistant quench tower |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107224858A (en) * | 2016-03-23 | 2017-10-03 | 上海建冶科技工程股份有限公司 | The wear-and corrosion-resistant technique of wet desulphurization equipment |
-
2018
- 2018-04-09 CN CN201810311465.7A patent/CN108499347A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107224858A (en) * | 2016-03-23 | 2017-10-03 | 上海建冶科技工程股份有限公司 | The wear-and corrosion-resistant technique of wet desulphurization equipment |
Non-Patent Citations (1)
| Title |
|---|
| 暴力小伙在新疆: "脱硫塔防腐施工方案，https://wenku.baidu.com/view/9a4b7c70ec3a87c24128c43e.html?fr=search", 《百度文库》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110898635A (en) * | 2019-11-20 | 2020-03-24 | 中国化学工程第三建设有限公司 | Thermal power plant desulphurization device glass scale anti-corrosion maintenance construction method |
| CN111380378A (en) * | 2020-03-18 | 2020-07-07 | 山东凯泰科技股份有限公司 | Combined type corrosion-resistant quench tower |
| CN111380378B (en) * | 2020-03-18 | 2021-08-10 | 山东凯泰科技股份有限公司 | Combined type corrosion-resistant quench tower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104741741B (en) | A kind of pipe pipe docking all positon automatic TIG welding technique of continuous pipe | |
| CN101822936A (en) | High-temperature scale anticorrosion construction method for heat-engine plant desulfurizer | |
| CN101797676B (en) | Repair and surface protection process of desulfuration recycle pump | |
| CN108499347A (en) | The glass flake composite anti-corrosive technique of ammonia process desulfuration tower | |
| CN111661504B (en) | Anti-corrosion oil tank and production method thereof | |
| CN109702562B (en) | Cold rolling furnace roller coating renovation treatment method | |
| CN104841626A (en) | Repairing method of metal workpiece | |
| CN107442369A (en) | Oil paint coating construction method under hot and humid environment | |
| CN108404642A (en) | The glass flake composite anti-corrosive technique of desulfurization by lime gypsum method tower | |
| CN208742240U (en) | A kind of carbide slag high-efficiency desulfurization system | |
| CN106811716A (en) | The construction technology of anticorrosive composite coating of steel structure | |
| CN1858477A (en) | Construction process for online inner coating protection of on-service underground pipeline and its special apparatus | |
| CN105109853B (en) | Large-scale storage tank lining plastic anticorrosion process | |
| CN103802381A (en) | Repairation method of anticorrosion and abrasion-resistant lining | |
| CN101444896B (en) | Method for removing rust on outer surface of steel pipe on line | |
| CN108097007A (en) | Ammonia desulfurizing process inside lining anti-corrosive technology | |
| CN105331924A (en) | Corrosion resistance technology of steel structure | |
| CN208865406U (en) | A kind of full alloy stickers lining anti-corrosion absorption tower | |
| CN215981451U (en) | Joint of slurry circulating pump of desulfurization absorption tower | |
| CN110860448A (en) | Novel polyurethane coating process for nodular cast iron pipe fitting | |
| CN101503799A (en) | Anti-corrosive rubber lining method for chemicals tank and pot | |
| CN207495298U (en) | A kind of automatic sand blasting sander | |
| CN112831246B (en) | Coal-fired power plant flue corrosion prevention material and coal-fired power plant flue corrosion prevention method | |
| JP3426846B2 (en) | Inhibitor of sulfide corrosion cracking and hydrogen-induced cracking on metal surface and method for preventing sulfide corrosion cracking and hydrogen-induced cracking of metal surface | |
| CN101554674A (en) | Explosive welding method for martensitic stainless steel 00Cr13Ni5Mo composite steel plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180907 |
|
| RJ01 | Rejection of invention patent application after publication |