CN109402651A - A kind of jet chimney acid washing method - Google Patents
A kind of jet chimney acid washing method Download PDFInfo
- Publication number
- CN109402651A CN109402651A CN201811314868.3A CN201811314868A CN109402651A CN 109402651 A CN109402651 A CN 109402651A CN 201811314868 A CN201811314868 A CN 201811314868A CN 109402651 A CN109402651 A CN 109402651A
- Authority
- CN
- China
- Prior art keywords
- jet chimney
- acid washing
- washing method
- phosphatization
- pipeline
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/04—Apparatus for cleaning or pickling metallic material for cleaning pipes
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
Abstract
The invention discloses a kind of jet chimney acid washing methods, include the following steps: step 1) pipeline sandblasting, and step 2 phosphatization prepares, step 3) pipeline phosphatization, and step 4) completes phosphatization, and step 5) is dry, and step 6) is detected and recorded, and step 7) is sealed up for safekeeping；The beneficial effects of the present invention are: varnish and paint in pipe can be removed by mechanical sandblasting, preliminary treatment can be carried out to inner surface of pipeline, phosphating solution can generate grey phosphating coat in steel surface under normal temperature conditions, play the purpose of antirust.
Description
Technical field
The present invention relates to chemical industry jet chimney cleaning technique fields, and in particular to a kind of jet chimney acid washing method.
Background technique
With the continuous development in epoch, energy conservation and environmental protection becomes the new trend of industrial development, steam turbine generation in Air separation industry
It is more and more for the project of motor, requirement to jet chimney also very high
The general common acid washing method of jet chimney is online wash cycles method, and the effect of online wash cycles is also by multi-party face
It ringing, if top vent is bad, causes pickling solution inside pipeline that can not all fill pipeline, top duct cleaning is not thorough, or
Dirt is excessive in pipeline, and bottom drain valve can not all be discharged.
Summary of the invention
Aiming at the problems existing in the prior art, it is simple that the present invention provides cleanings, and a kind of steam that cleaning quality is high
Pipe pickling method.
Technical scheme is as follows:
A kind of jet chimney acid washing method, which comprises the steps of:
Step 1) pipeline sandblasting: mechanical sandblasting removal first is carried out to jet chimney and manages interior varnish and floating rust, and mechanical spray will be passed through
It is clean with Butuo sassafras inside jet chimney after sand；
Step 2 phosphatization prepares: putting into bonderite and water by 1:8-12 in Phosphating Slot and obtains phosphating solution after mixing；
Step 3) pipeline phosphatization: will need the jet chimney of pickling to be placed into Phosphating Slot, and 10-15 points are impregnated in phosphating solution
Clock；
Step 4) completes phosphatization: the jet chimney after immersion being taken out, and the phosphating solution in jet chimney is drained；
Step 5) is dry: in its natural state by jet chimney, 2-3 hours dry；
Step 6) is detected and is recorded: being checked the phosphatization quality of jet chimney after drying, and is filled in phosphatization record；
Step 7) is sealed up for safekeeping: the nozzle plastic cap or plastic cloth of the jet chimney of passed examination being blocked, torn open when needing to weld
The case where opening, avoiding secondary pollution generation.
A kind of jet chimney acid washing method, which is characterized in that the feed ratio of bonderite and water in the step 2
For 1:10.
A kind of jet chimney acid washing method, which is characterized in that bonderite includes phosphoric acid, phosphoric acid in the step 2
Dihydro zinc and zinc nitrate.
A kind of jet chimney acid washing method, which is characterized in that the cloth in the step 1) is not easy to take off using fiber
The calico or non-woven fabrics fallen.
A kind of jet chimney acid washing method, which is characterized in that soaking time is 12 minutes in the step 3).
A kind of jet chimney acid washing method, which is characterized in that mechanical sandblasting uses quartz sand in the step 1).
A kind of jet chimney acid washing method, which is characterized in that the jet chimney is less than using pipe diameter
The carbon steel piping of DN50.
A kind of jet chimney acid washing method, which is characterized in that answer pipeline to remove after pipeline sandblasting in the step 1)
Rust grade reaches Sa2.5 grades.
The beneficial effects of the present invention are: varnish and paint in pipe can be removed by mechanical sandblasting, can to inner surface of pipeline into
Row preliminary treatment, phosphating solution can generate grey phosphating coat in steel surface under normal temperature conditions, play the purpose of antirust.
Detailed description of the invention
Fig. 1 is work flow diagram of the invention.
Specific embodiment
Below in conjunction with specific embodiment, the invention will be further described.
A kind of jet chimney acid washing method, jet chimney are less than the carbon steel piping of DN50 using pipe diameter.
Embodiment:
Specific step is as follows:
Step 1) pipeline sandblasting: mechanical sandblasting removal first is carried out to jet chimney and manages interior varnish and floating rust, and mechanical spray will be passed through
It is clean with nonwoven Butuo sassafras inside jet chimney after sand, wherein mechanical sandblasting uses quartz sand, answer pipeline to remove after pipeline sandblasting
Rust grade reaches Sa2.5 grades.(very thoroughly injection or centrifugal blast cleaning, steel surface can be aoxidized without visible grease, dirt
Skin, iron rust and painting layer attachment, any remaining trace are dotted or striated slight color spots；)；
Step 2 phosphatization prepares: being that bonderite and water are put into and mixed by 1:10 in 12.5m × 1m × 1m Phosphating Slot in specification
Phosphating solution is obtained after conjunction, wherein bonderite includes phosphoric acid, zinc dihydrogen phosphate and zinc nitrate.
Step 3) pipeline phosphatization: will need the jet chimney of pickling to be placed into Phosphating Slot, and 12 points are impregnated in phosphating solution
Clock；
Step 4) completes phosphatization: the jet chimney after immersion being taken out, and the phosphating solution in jet chimney is drained；
Step 5) is dry: in its natural state by jet chimney, 2.5 hours dry；
Step 6) is detected and is recorded: being checked the phosphatization quality of jet chimney after drying, and is filled in phosphatization record；
Step 7) is sealed up for safekeeping: the nozzle plastic cap or plastic cloth of the jet chimney of passed examination being blocked, torn open when needing to weld
The case where opening, avoiding secondary pollution generation.
The selection of bonderite:
Claims (8)
1. a kind of jet chimney acid washing method, which comprises the steps of:
Step 1) pipeline sandblasting: mechanical sandblasting removal first is carried out to jet chimney and manages interior varnish and floating rust, and mechanical spray will be passed through
It is clean with Butuo sassafras inside jet chimney after sand；
Step 2 phosphatization prepares: putting into bonderite and water by 1:8-12 in Phosphating Slot and obtains phosphating solution after mixing；
Step 3) pipeline phosphatization: will need the jet chimney of pickling to be placed into Phosphating Slot, and 10-15 points are impregnated in phosphating solution
Clock；
Step 4) completes phosphatization: the jet chimney after immersion being taken out, and the phosphating solution in jet chimney is drained；
Step 5) is dry: in its natural state by jet chimney, 2-3 hours dry；
Step 6) is detected and is recorded: being checked the phosphatization quality of jet chimney after drying, and is filled in phosphatization record；
Step 7) is sealed up for safekeeping: the nozzle plastic cap or plastic cloth of the jet chimney of passed examination being blocked, torn open when needing to weld
The case where opening, avoiding secondary pollution generation.
2. a kind of jet chimney acid washing method according to claim 1, which is characterized in that in the step 2 bonderite with
The feed ratio of water is 1:10.
3. a kind of jet chimney acid washing method according to claim 1, which is characterized in that bonderite packet in the step 2
Include phosphoric acid, zinc dihydrogen phosphate and zinc nitrate.
4. a kind of jet chimney acid washing method according to claim 1, which is characterized in that the cloth in the step 1) uses
Fiber calico or non-woven fabrics not easily to fall off.
5. a kind of jet chimney acid washing method according to claim 1, which is characterized in that soaking time in the step 3)
It is 12 minutes.
6. a kind of jet chimney acid washing method according to claim 1, which is characterized in that mechanical sandblasting in the step 1)
Using quartz sand.
7. a kind of jet chimney acid washing method according to claim 1, which is characterized in that the jet chimney uses pipeline
Caliber is less than the carbon steel piping of DN50.
8. a kind of jet chimney acid washing method according to claim 1, which is characterized in that pipeline sandblasting in the step 1)
After answer pipeline derusting grade to reach Sa2.5 grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811314868.3A CN109402651A (en) | 2018-11-06 | 2018-11-06 | A kind of jet chimney acid washing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811314868.3A CN109402651A (en) | 2018-11-06 | 2018-11-06 | A kind of jet chimney acid washing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109402651A true CN109402651A (en) | 2019-03-01 |
Family
ID=65471809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811314868.3A Pending CN109402651A (en) | 2018-11-06 | 2018-11-06 | A kind of jet chimney acid washing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109402651A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815057A (en) * | 2019-11-05 | 2020-02-21 | 昆山亚比斯环保包装材料有限公司 | Treatment method of acid-free phosphatized metal plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031723A (en) * | 1988-06-08 | 1989-03-15 | 许文庆 | The outer and inner walls of steel pipe bundle aseptic technic |
| CN102878360A (en) * | 2012-09-28 | 2013-01-16 | 天津盛象塑料管业有限公司 | Method for increasing steel-plastic cohesion for steel-framed plastic composite pipes |
-
2018
- 2018-11-06 CN CN201811314868.3A patent/CN109402651A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031723A (en) * | 1988-06-08 | 1989-03-15 | 许文庆 | The outer and inner walls of steel pipe bundle aseptic technic |
| CN102878360A (en) * | 2012-09-28 | 2013-01-16 | 天津盛象塑料管业有限公司 | Method for increasing steel-plastic cohesion for steel-framed plastic composite pipes |
Non-Patent Citations (2)
| Title |
|---|
| 代海宁: "《电化学基本原理及应用》", 31 March 2014, 冶金工业出版社 * |
| 胡建国: "小口径管线内防腐施工工艺研究及应用", 《石油工程建设》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815057A (en) * | 2019-11-05 | 2020-02-21 | 昆山亚比斯环保包装材料有限公司 | Treatment method of acid-free phosphatized metal plate |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190301 |