CN210936259U - Surface belt cleaning device before steel pipe is anticorrosive - Google Patents
Surface belt cleaning device before steel pipe is anticorrosive Download PDFInfo
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- CN210936259U CN210936259U CN201921523720.0U CN201921523720U CN210936259U CN 210936259 U CN210936259 U CN 210936259U CN 201921523720 U CN201921523720 U CN 201921523720U CN 210936259 U CN210936259 U CN 210936259U
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Abstract
A steel pipe anticorrosion front surface cleaning device relates to a device for cleaning the surface of a steel pipe before anticorrosion operation. The method is designed for mainly solving the problems of high use cost and high environment-friendly treatment cost of cleaning the surface of the steel pipe by adopting the acid cleaning process at present. The device comprises a shell, wherein the shell is divided into two cleaning chambers by a partition plate; the primary cleaning water pipe and the secondary cleaning water pipe are both provided with spray heads, and the primary cleaning water pipe is connected with the low-pressure pump; the secondary cleaning water pipe is connected with the high-pressure pump. The right end of the shell is provided with an annular air knife, the right end of an air chamber of the annular air knife is connected with an annular steel plate, and the right edge of the annular steel plate is provided with bristles; an air outlet hole is formed in the annular air chamber; the water outlets at the bottoms of the primary cleaning chamber and the secondary cleaning chamber are communicated with a wastewater collecting tank through pipelines. The left end of the shell is provided with a high-pressure air knife, and an air pipe of the high-pressure air knife is connected with a high-pressure fan. The air outlet on the shell is communicated with an air exhaust pipeline which is connected with an exhaust fan. The method has the advantages of low environmental protection treatment cost and low use cost.
Description
The technical field is as follows:
the utility model relates to a steel pipe surface carries out abluent device before anticorrosive operation.
Background art:
the surface of the steel pipe is cleaned by adopting an acid cleaning process before corrosion prevention, the surface of the steel pipe is cleaned by using a phosphoric acid solution, and chemical and electrochemical reactions are generated on the surface of the steel pipe to form a ferrous phosphate conversion film, so that a base metal of the steel pipe is protected, and the corrosion resistance of the metal is improved; then flushing is carried out, impurities on the surface of the steel pipe are reduced, the corrosion resistance of the coating is improved, and the binding force between the coating and the workpiece is enhanced.
At present, the steel pipe after rust removal is firstly subjected to acid cleaning, then is washed with water and is dried. In this pickling process, three waste liquors and one exhaust gas are produced in total. Wherein, the generated waste liquid contains phosphorus and is acidic, and the treatment cost is high. The exhaust gas is also acidic and needs to be treated before it can be discharged. Both the water washing and the acid liquor are heated to 60 ℃, and the surface drying is dried by hot air at 50 ℃, so that the heat pollution is caused, and the energy consumption is large. The process has high use cost and environmental protection treatment cost.
The invention content is as follows:
the utility model aims to solve the technical problem that a steel pipe that does not have phosphorus waste acid, sour gas and steam and discharge surface belt cleaning device before anticorrosive is provided.
The above object is achieved by: the cleaning device comprises a shell, wherein a steel pipe inlet is formed in the right end of the shell, a steel pipe outlet is formed in the left end of the shell, an annular partition plate is arranged in the middle of the inside of the shell, an outer ring of the partition plate is fixed on the inner wall of the shell, the partition plate divides the inner space of the shell into two cleaning chambers, the inner space of the shell on the right side of the partition plate is a primary cleaning chamber, and the inner space of the shell on the left; a primary cleaning water pipe is arranged in the primary cleaning chamber, a plurality of spray heads which are arranged in front and back are arranged on the primary cleaning water pipe, and the outer end of the primary cleaning water pipe extends out of the shell and then is connected with a water outlet of the low-pressure pump; and a secondary cleaning water pipe is arranged in the secondary cleaning chamber, a plurality of spray heads which are arranged in the front-back direction are arranged on the secondary cleaning water pipe, and the outer end of the secondary cleaning water pipe is connected with a water outlet of the high-pressure pump after extending out of the shell.
The right end face of the shell is provided with an annular air knife, the annular air knife comprises an annular air chamber, the annular air chamber is fixed on the right end face of the shell through a connecting frame, the annular air chamber is connected with an air outlet of a fan through a pipeline, the outer ring of the right end of the annular air chamber is connected with an annular steel plate, and the right edge of the annular steel plate is fixed with a circle of brush hair; a circle of a plurality of air outlet holes are formed in the annular air chamber positioned on the inner side of the annular steel plate; the brush hair is located the outside of steel pipe import.
The bottom of the primary cleaning chamber and the bottom of the secondary cleaning chamber are both provided with water outlets, a wastewater collecting tank is arranged below the shell, and the water outlets at the bottoms of the primary cleaning chamber and the secondary cleaning chamber are both provided with pipelines communicated with the wastewater collecting tank. And a high-pressure air knife is arranged at the outlet of the steel pipe at the left end of the shell and fixed on the inner wall of the shell, and the high-pressure air knife and the secondary cleaning water pipe are respectively positioned at two sides of the steel pipe. The other end of the air pipe of the high-pressure air knife is connected with the high-pressure fan.
The shell at the top of the primary cleaning chamber and the shell at the top of the secondary cleaning chamber are provided with air outlets which are communicated with an air exhaust pipeline, and the other end of the air exhaust pipeline is connected with an air exhaust fan.
The utility model has the advantages that: the waste liquid generated by cleaning the steel pipe by using the device is phosphorus-free and acid-free, and can be filtered, so that the device is free of acid waste gas and low in environmental protection treatment cost. Because the annular air knife is arranged, the air knife surrounds the outside of the steel pipe and blows air along the surface of the pipe body, and the wind power can be uniformly distributed on the surface of the steel pipe; the annular wind chamber is equivalent to a pressure cavity of wind, and the wind flows out at high pressure and high speed when flowing out from the outlet; the annular air knife can thoroughly blow away water entering the surface part of the steel pipe in the air knife. Low use cost and less equipment investment.
Description of the drawings:
fig. 1 is a schematic front view of the present invention;
fig. 2 is a left side view structure diagram of the present invention;
fig. 3 is a schematic diagram of the right-side view structure of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to FIGS. 1-3;
the cleaning device comprises a shell 1, wherein a steel pipe inlet is formed in the right end of the shell, a steel pipe outlet is formed in the left end of the shell, an annular partition plate 2 is arranged in the middle of the shell, an outer ring of the partition plate is fixed on the inner wall of the shell, the partition plate divides the inner space of the shell into two cleaning chambers, a primary cleaning chamber 3 is arranged in the shell on the right side of the partition plate, and a secondary cleaning chamber 4 is arranged in the shell on the left side of; when the steel pipe 5 moves forwards spirally, the steel pipe passes through the opening in the middle of the partition plate; a primary cleaning water pipe 6 is arranged in the primary cleaning chamber, a plurality of spray heads 7 which are arranged in front and back are arranged on the primary cleaning water pipe, and the outer end of the primary cleaning water pipe extends out of the shell and is connected with a water outlet of a low-pressure pump 8; a secondary cleaning water pipe 9 is arranged in the secondary cleaning chamber, a plurality of spray heads which are arranged in front and back are arranged on the secondary cleaning water pipe, and the outer end of the secondary cleaning water pipe extends out of the shell and then is connected with a water outlet of the high-pressure pump 10; the primary cleaning water is sprayed on the surface of the steel pipe by a low-pressure pump, and the secondary cleaning water is sprayed on the surface of the steel pipe by high-pressure water.
An annular air knife is arranged on the right end face of the shell and comprises an annular air chamber 11, the annular air chamber is fixed on the right end face of the shell through a connecting frame 12 and is connected with an air outlet of a fan 13 through a pipeline, an annular steel plate 14 is connected to the outer ring of the right end of the annular air chamber, and a circle of brush hair 15 is fixed on the right edge of the annular steel plate; a plurality of air outlet holes 16 are arranged on the annular air chamber positioned at the inner side of the annular steel plate; the bristles are positioned on the outer side of the steel pipe inlet; when the air knife does not work, the bristles are in contact with the steel pipe, and when the air knife works, the bristles are blown up to leave the steel pipe.
The bottom of the primary cleaning chamber and the bottom of the secondary cleaning chamber are both provided with water outlets, a wastewater collecting tank 17 is arranged below the shell, and the water outlets at the bottoms of the primary cleaning chamber and the secondary cleaning chamber are both provided with pipelines communicated with the wastewater collecting tank. And a high-pressure air knife 18 is arranged at the outlet of the steel pipe at the left end of the shell, the high-pressure air knife is fixed on the inner wall of the shell, and the high-pressure air knife and the secondary cleaning water pipe are respectively positioned at two sides of the steel pipe. The other end of the air pipe of the high-pressure air knife is connected with a high-pressure fan 19.
The shell at the top of the primary cleaning chamber and the shell at the top of the secondary cleaning chamber are both provided with an air outlet 20 which is communicated with an air exhaust pipeline 21, and the other end of the air exhaust pipeline is connected with an air exhaust fan 22 for exhausting water vapor.
The device is arranged between two sections of steel pipe conveying mechanisms.
Wherein the first washing water amount is 100L/h, and the water pressure is 0.2 MPa.
The second time washing water volume is 500L/h, and the water pressure is 10 MPa.
The temperature of the cleaning water is normal temperature in summer and is heated to 20 ℃ in other seasons.
The blow-drying air quantity of the high-pressure air knife is as follows: carrying out dry distillation at a speed of 2000-3000 m/h, and carrying out wind pressure: 0.35 MPa.
The blow-drying air quantity of the annular air knife is as follows: 1000-1500 m for each hour of cultivation, wind pressure: 0.35 MPa.
The primary cleaning water and the secondary cleaning water are pure water prepared by an industrial water purifier, and the conductivity of the pure water is less than 5 mu S/cm;
the rotating speed of the steel pipe during cleaning is as follows: the linear advancing speed during cleaning the steel pipe at 5-15 rpm/min is as follows: 0.8-2.4 m/min.
Claims (1)
1. The utility model provides an anticorrosive front surface belt cleaning device of steel pipe, includes casing (1), and the right-hand member of casing is equipped with the steel pipe import, and the left end of casing is equipped with steel pipe export, characterized by: an annular partition plate (2) is arranged in the middle of the inside of the shell, the outer ring of the partition plate is fixed on the inner wall of the shell, the partition plate divides the inner space of the shell into two cleaning chambers, the space in the shell on the right side of the partition plate is a primary cleaning chamber (3), and the space in the shell on the left side of the partition plate is a secondary cleaning chamber (4); a primary cleaning water pipe (6) is arranged in the primary cleaning chamber, a plurality of spray heads (7) which are arranged in front and back are arranged on the primary cleaning water pipe, and the outer end of the primary cleaning water pipe extends out of the shell and is connected with a water outlet of a low-pressure pump (8); a secondary cleaning water pipe (9) is arranged in the secondary cleaning chamber, a plurality of spray heads which are arranged in front and back are arranged on the secondary cleaning water pipe, and the outer end of the secondary cleaning water pipe extends out of the shell and is connected with a water outlet of the high-pressure pump (10);
an annular air knife is arranged on the right end face of the shell and comprises an annular air chamber (11), the annular air chamber is fixed on the right end face of the shell through a connecting frame (12), the annular air chamber is connected with an air outlet of a fan (13) through a pipeline, an annular steel plate (14) is connected to the outer ring of the right end of the annular air chamber, and a circle of brush hair (15) is fixed on the right edge of the annular steel plate; a plurality of air outlet holes (16) are arranged on the annular air chamber positioned at the inner side of the annular steel plate; the bristles are positioned on the outer side of the steel pipe inlet;
water outlets are formed in the bottoms of the primary cleaning chamber and the secondary cleaning chamber, a wastewater collecting tank (17) is arranged below the shell, and pipelines are arranged at the water outlets in the bottoms of the primary cleaning chamber and the secondary cleaning chamber and communicated with the wastewater collecting tank; a high-pressure air knife (18) is arranged at the outlet of the steel pipe at the left end of the shell, the high-pressure air knife is fixed on the inner wall of the shell, the high-pressure air knife and the secondary cleaning water pipe are respectively positioned at two sides of the steel pipe, and the other end of an air pipe of the high-pressure air knife is connected with a high-pressure fan (19);
the shells at the tops of the primary cleaning chamber and the secondary cleaning chamber are respectively provided with an air outlet (20), the air outlets are communicated with an air exhaust pipeline (21), and the other end of the air exhaust pipeline is connected with an air exhaust fan (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921523720.0U CN210936259U (en) | 2019-09-13 | 2019-09-13 | Surface belt cleaning device before steel pipe is anticorrosive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921523720.0U CN210936259U (en) | 2019-09-13 | 2019-09-13 | Surface belt cleaning device before steel pipe is anticorrosive |
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| Publication Number | Publication Date |
|---|---|
| CN210936259U true CN210936259U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921523720.0U Active CN210936259U (en) | 2019-09-13 | 2019-09-13 | Surface belt cleaning device before steel pipe is anticorrosive |
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| CN (1) | CN210936259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113171921A (en) * | 2021-04-15 | 2021-07-27 | 苏州金邦迪管业科技有限公司 | Metal tube surface treatment production line and surface treatment process |
-
2019
- 2019-09-13 CN CN201921523720.0U patent/CN210936259U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113171921A (en) * | 2021-04-15 | 2021-07-27 | 苏州金邦迪管业科技有限公司 | Metal tube surface treatment production line and surface treatment process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210322 Address after: 100120 Xicheng District six paw Kang in Beijing City Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: BAOJI PETROLEUM STEEL PIPE Co.,Ltd. Patentee after: LIAOYANG PETROLEUM STEEL TUBE MANUFACTURING Co.,Ltd. Address before: 111000 No. 26-1 Hongwei Road, Hongwei District, Liaoyang City, Liaoning Province Patentee before: LIAOYANG PETROLEUM STEEL TUBE MANUFACTURING Co.,Ltd. |
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| TR01 | Transfer of patent right |