CN113862688B - Seamless steel tube pickling device and pickling method - Google Patents
Seamless steel tube pickling device and pickling method Download PDFInfo
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- CN113862688B CN113862688B CN202111098265.6A CN202111098265A CN113862688B CN 113862688 B CN113862688 B CN 113862688B CN 202111098265 A CN202111098265 A CN 202111098265A CN 113862688 B CN113862688 B CN 113862688B
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- 238000005554 pickling Methods 0.000 title claims abstract description 177
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 80
- 239000010959 steel Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000002253 acid Substances 0.000 claims description 19
- 239000003595 mist Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 abstract description 12
- 230000002441 reversible effect Effects 0.000 abstract description 5
- 238000005406 washing Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 description 16
- 238000010168 coupling process Methods 0.000 description 16
- 238000005859 coupling reaction Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to a seamless steel pipe pickling device and a pickling method, wherein the pickling device comprises a pickling tank, a cover body is arranged at an opening of the pickling tank, a liquid discharge pipe is arranged on the pickling tank, a rotating shaft is arranged in the pickling tank, a motor which is connected with the rotating shaft and used for driving the rotating shaft to forward and reverse is arranged outside the pickling tank, a plurality of uniformly distributed connecting rods are arranged around a central shaft of the rotating shaft, a pickling shell is arranged at one end of each connecting rod, which is far away from the rotating shaft, and is used for placing a single seamless steel pipe, the length of an inner cavity of the pickling shell is larger than the length of the single seamless steel pipe, the diameter of the inner cavity of the pickling shell is larger than the diameter of the single seamless steel pipe, the pickling shell comprises a first half shell and a second half shell, and a connecting component is arranged between the first half shell and the second half shell and used for realizing detachable connection of the first half shell and the second half shell. The invention can fully acid-wash all parts of the seamless steel pipe, thereby improving the acid-washing uniformity and the acid-washing quality of the seamless steel pipe.
Description
Technical Field
The invention relates to the technical field of pickling equipment, in particular to a seamless steel tube pickling device and a pickling method.
Background
Seamless steel pipe refers to steel pipe without joint gaps and is commonly used as a pipe for transporting fluids, such as petroleum, natural gas, etc. According to the production method, the seamless steel pipe is divided into a hot rolled pipe, a cold drawn pipe, an extruded pipe, a jacking pipe and the like. According to the sectional shape, the seamless steel pipe is divided into a circular pipe and a special pipe, and the special pipe has various complex shapes such as square, elliptic, triangular, hexagonal, melon seed-shaped, star-shaped, finned pipe and the like.
In the prior art, when the seamless steel pipes are pickled, bundles of the seamless steel pipes are placed into a pickling tank for pickling, and part of pickling solution at the positions cannot be completely immersed due to mutual contact between the bundles of the seamless steel pipes, so that the pickling degrees of all parts of the seamless steel pipes are different, and the pickling quality is reduced.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects in the prior art, the invention provides a seamless steel tube pickling device and a pickling method, which are used for solving the problems of uneven pickling degree and low pickling quality of the seamless steel tube in the prior art.
(II) technical scheme
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides a seamless steel pipe pickling device, includes the pickling tank, the opening part of pickling tank is provided with the lid, be provided with the fluid-discharge tube on the pickling tank, be provided with the pivot in the pickling tank, the pickling tank is provided with the motor that is used for driving the pivot forward and backward rotation that links to each other with the pivot outward, the pivot is provided with a plurality of evenly distributed connecting rods around self center pin, the one end that the connecting rod kept away from the pivot is provided with the pickling shell, the pickling shell is used for placing single seamless steel pipe, the length of the inner chamber of pickling shell is greater than the length of single seamless steel pipe, the diameter of the inner chamber of pickling shell is greater than the diameter of single seamless steel pipe, the pickling shell includes first half shell and second half shell, first half shell and second half shell splice together, be provided with coupling assembling between first half shell and the second half shell, coupling assembling includes first go-between second coupling ring and a plurality of coupling pieces, first coupling ring sets up along the outward flange of first half shell and second half shell laminating surface, second coupling ring and second coupling ring set up along first half shell laminating surface; the one end and the first go-between fixed connection of pivot are kept away from to the connecting rod, the connecting piece includes connecting bolt and coupling nut, connecting bolt's pole portion runs through first go-between and second go-between, the coupling nut screw thread cup joints on connecting bolt, coupling nut cooperation connecting bolt is tight fixed with first go-between with the second go-between clamp, coupling assembling is used for realizing the dismantlement of first half shell and second half shell and is connected, all be provided with a plurality of pickling holes on first half shell and the second half shell, the inner chamber and the external intercommunication of pickling shell are passed through to the pickling hole.
Further, the pickling tank is provided with an acid mist treatment assembly, the acid mist treatment assembly comprises a connecting pipe and acid mist treatment equipment, one end of the connecting pipe is connected with the top end of one side wall of the pickling tank, and one end of the connecting pipe, which is far away from the pickling tank, is connected with the input end of the acid mist treatment equipment.
A seamless steel pipe pickling method, comprising the following steps:
s1, placing a seamless steel tube in each pickling shell, and adding pickling solution into a pickling tank until all pickling shells are completely immersed in the pickling solution;
s2, covering the cover body, and starting the motor to enable the rotating shaft to rotate in the same direction, wherein the rotation time is at least 1 minute;
s3, adjusting the steering of the motor to enable the rotating shaft to reversely rotate, wherein the rotating time is at least 1 minute;
s4, repeating the step S2 and the step S3 at least three times;
s5, closing the motor, evacuating the pickling solution in the pickling tank after the rotating shaft is completely stationary, and then taking out the seamless steel tube in each pickling shell.
(III) beneficial technical effects
In summary, the invention has the following beneficial technical effects:
the invention provides a seamless steel pipe pickling device and a pickling method, when the seamless steel pipe pickling device is used, a single seamless steel pipe is placed into a pickling shell, and then a motor is started to drive a rotating shaft to periodically rotate forward and backward, so that the pickling shell drives the seamless steel pipe to periodically rotate forward and backward, the seamless steel pipe can be respectively contacted with the inner side walls of a first half shell and a second half shell in the forward and backward processes of the pickling shell, when the seamless steel pipe is contacted with the first half shell, the rest part of the seamless steel pipe can be contacted with a pickling solution to carry out pickling, when the seamless steel pipe is contacted with the second half shell, the rest part of the seamless steel pipe can be contacted with the pickling solution to carry out pickling, and as the part of the seamless steel pipe contacted with the first half shell and the part contacted with the second half shell are not overlapped with each other, all parts of the seamless steel pipe can be fully contacted with the pickling solution, so that the seamless steel pipe can be fully pickled, and simultaneously, the pickling shell can also be stirred with the pickling solution in the pickling tank in the process of following the rotating shaft, so that the pickling solution has good fluidity, the seamless steel pipe can be further contacted with the pickling solution, and the pickling effect can be further improved, and the pickling uniformity can be further achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a seamless steel pipe pickling apparatus according to an embodiment;
FIG. 2 is a schematic view showing an internal structure of a seamless steel pipe pickling apparatus according to an embodiment;
FIG. 3 is a top view of the pickling section in an embodiment;
FIG. 4 is a schematic diagram showing the state of seamless steel pipes in the pickling vessel when the rotating shaft rotates clockwise in the pickling process;
FIG. 5 is a schematic diagram showing the state of seamless steel pipes in the pickling vessel when the rotating shaft rotates in the anticlockwise direction in the pickling process;
fig. 6 is a flow chart of a seamless steel pipe pickling method in an embodiment.
Reference numerals illustrate:
in the figure, 1, a pickling tank; 2. a cover body; 3. a liquid discharge pipe; 4. a rotating shaft; 5. a motor; 6. a connecting rod; 7. acid washing the shell; 71. a first half shell; 72. a second half shell; 8. acid washing holes; 9. a first connection ring; 10. a second connecting ring; 11. a connecting bolt; 12. a coupling nut; 13. a connecting pipe; 14. and a support plate.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Examples:
referring to fig. 1-5, the seamless steel pipe pickling device disclosed by the invention comprises a pickling tank 1. The pickling tank 1 is a cube groove, and a cover body 2 is arranged at the top opening of the pickling tank 1. The bottom of one vertical side wall of the pickling tank 1 is provided with a liquid discharge pipe 3, the liquid discharge pipe 3 is communicated with the inner cavity of the pickling tank 1, and a valve (not shown in the figure) is arranged on the liquid discharge pipe 3.
The pickling tank 1 is rotationally connected with a rotating shaft 4, a motor 5 connected with the rotating shaft 4 and used for driving the rotating shaft 4 to forward and reverse is arranged outside the pickling tank 1, a supporting plate 14 is arranged on one vertical outer side wall of the pickling tank 1, and the motor 5 is placed on the supporting plate 14. The pivot 4 is provided with a plurality of evenly distributed connecting rods 6 around self center pin, and the one end that connecting rod 6 kept away from pivot 4 is provided with pickling shell 7. The pickling shell 7 is in a hollow cylinder shape, the pickling shell 7 is used for placing a single seamless steel pipe, the length of the inner cavity of the pickling shell 7 is larger than that of the single seamless steel pipe, and the diameter of the inner cavity of the pickling shell 7 is larger than that of the single seamless steel pipe. The pickling casing 7 comprises a first half casing 71 and a second half casing 72, the first half casing 71 and the second half casing 72 are spliced together, a connecting component is arranged between the first half casing 71 and the second half casing 72, and the connecting component is used for realizing detachable connection of the first half casing 71 and the second half casing 72. The first half shell 71 and the second half shell 72 are respectively provided with a plurality of pickling holes 8, and the inner cavity of the pickling shell 7 is communicated with the outside through the pickling holes 8.
The connection assembly comprises a first connection ring 9, a second connection ring 10 and several connection pieces. The first connecting ring 9 is arranged along the outer edge of the surface of the first half shell 71, which is attached to the second half shell 72, the second connecting ring 10 is arranged along the outer edge of the surface of the second half shell 72, which is attached to the first half shell 71, the first connecting ring 9 is attached to the second connecting ring 10, a plurality of connecting pieces are arranged between the first connecting ring 9 and the second connecting ring 10 to detachably connect the first connecting ring 9 and the second connecting ring 10, and one end of the connecting rod 6, which is far away from the rotating shaft 4, is fixedly connected with the first connecting ring 9.
The connecting piece comprises a connecting bolt 11 and a connecting nut 12, the rod part of the connecting bolt 11 penetrates through the first connecting ring 9 and the second connecting ring 10, the connecting nut 12 is in threaded sleeve connection with the connecting bolt 11, and the connecting nut 12 is matched with the connecting bolt 11 to clamp and fix the first connecting ring 9 and the second connecting ring 10. When the coupling nut 12 is detached from the coupling bolt 11, the first half shell 71 can be detached from the second half shell 72, and a worker can put a seamless steel pipe to be pickled into the first half shell 71, then splice the second half shell 72 with the first half shell 71, and connect and fix the first half shell 71 with the second half shell 72 using the coupling bolt 11 and the coupling nut 12.
The pickling tank 1 is further provided with an acid mist treatment assembly including a connection pipe 13 and an acid mist treatment device (not shown in the figure). One end of the connecting pipe 13 is connected with the top end of one side wall of the pickling tank 1, and one end of the connecting pipe 13 far away from the pickling tank 1 is connected with the input end of the acid mist treatment equipment. When pickling is carried out, the acid mist treatment equipment is started, and acid mist generated in the pickling tank 1 can enter the acid mist treatment equipment from the connecting pipe 13 and is treated and purified by the acid mist treatment equipment, so that the amount of acid mist discharged into the air in the pickling process is reduced, and the effect of reducing environmental pollution is achieved.
In addition, the portion of the connection pipe 13 connected to the pickling tank 1 is provided in an upwardly inclined structure, which can prevent the pickling solution of the pickling tank 1 from accidentally flowing into the connection pipe 13, thereby reducing the consumption of the pickling solution.
In summary, when in use, a single seamless steel pipe is put into the pickling housing 7, the acid mist treatment equipment is started, and the starting motor 5 drives the rotating shaft 4 to perform periodic forward rotation and reverse rotation, so that the pickling housing 7 drives the seamless steel pipe to perform periodic forward rotation and reverse rotation; in the process of forward rotation and reverse rotation of the pickling shell 7, the seamless steel pipe is contacted with the inner side walls of the first half shell 71 and the second half shell 72 respectively, when the seamless steel pipe is contacted with the first half shell 71, the rest part of the seamless steel pipe is contacted with pickling solution for pickling, when the seamless steel pipe is contacted with the second half shell 72, the rest part of the seamless steel pipe is contacted with the pickling solution for pickling, and the part of the seamless steel pipe contacted with the first half shell 71 and the part contacted with the second half shell 72 are not overlapped with each other, so that all parts of the seamless steel pipe can be fully contacted with the pickling solution, and the seamless steel pipe can be fully pickled; meanwhile, the pickling shell 7 can stir the pickling solution in the pickling tank 1 in the process of following the rotation of the rotating shaft 4, so that the pickling solution has good fluidity, and the pickling solution can be fully contacted with the seamless steel pipe, thereby achieving the effect of further improving the pickling uniformity and the pickling quality of the seamless steel pipe.
Referring to fig. 6, the invention provides a seamless steel tube pickling method, which comprises the following steps:
s1, opening a cover body 2, filling a seamless steel pipe into each pickling shell 7, adding pickling solution into the pickling tank 1 until all the pickling shells 7 are completely immersed in the pickling solution, and covering the cover body 2;
s2, starting a motor 5 to enable a rotating shaft 4 to rotate in the same direction, wherein the rotation time is at least 1 minute;
s3, changing the steering direction of the motor 5 to enable the rotating shaft 4 to reversely rotate, wherein the rotating time is at least 1 minute;
s4, repeating the step S2 and the step S3 at least three times;
s5, closing the motor 5, emptying the pickling solution in the pickling tank 1 after the rotating shaft 4 is completely stationary, and then taking out the seamless steel pipes in each pickling shell 7.
The specific operation of step S1 is as follows: the cover body 2 is opened, all lock nuts are detached from the lock bolts, the second half shell 72 is separated from the first half shell 71, the steel pipe to be pickled is placed in the first half shell 71, the second half shell 72 is spliced with the first half shell 71, finally the first half shell 71 is fixedly connected with the second half shell 72 by using the lock nuts and the lock bolts, the operation is repeated until all the pickling shells 7 are filled with the seamless steel pipe, then the valve of the liquid discharge pipe 3 is closed, pickling liquid is injected into the pickling tank 1 until all the pickling shells 7 are completely immersed in the pickling liquid, and finally the cover body 2 is covered.
The specific operation of step S5 is as follows: after the motor 5 is closed and the belt rotating shaft 4 is completely stationary, the valve of the liquid discharge pipe 3 is opened, the pickling liquid in the pickling tank 1 can flow out from the liquid discharge pipe 3, after the pickling liquid is emptied, the cover body 2 is opened, a worker removes the locking nut from the locking bolt, so that the second half shell 72 is separated from the first half shell 71, and the seamless steel pipe after pickling is taken out. It should be noted that, when the above operation is performed, the staff needs to wear acid-base protective clothing or other protective equipment to ensure personal safety of the staff.
In summary, the seamless steel pipe pickling device can be matched with the seamless steel pipe pickling method to fully pickle the seamless steel pipe, and has the effect of improving the pickling uniformity and the pickling quality of the seamless steel pipe.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (4)
1. The utility model provides a seamless steel pipe pickling device, includes pickling tank (1), the opening part of pickling tank (1) is provided with lid (2), be provided with fluid-discharge tube (3), its characterized in that on pickling tank (1): a rotating shaft (4) is arranged in the pickling tank (1), a motor (5) which is connected with the rotating shaft (4) and used for driving the rotating shaft (4) to positively transmit and reversely rotate is arranged outside the pickling tank (1), a plurality of evenly distributed connecting rods (6) are arranged around a central shaft of the rotating shaft (4), one end of each connecting rod (6) far away from the rotating shaft (4) is provided with a pickling shell (7), the pickling shell (7) is used for placing a single seamless steel pipe, the length of an inner cavity of the pickling shell (7) is larger than that of the single seamless steel pipe, the diameter of the inner cavity of the pickling shell (7) is larger than that of the single seamless steel pipe, the pickling shell (7) comprises a first half shell (71) and a second half shell (72), a connecting assembly is arranged between the first half shell (71) and the second half shell (72) in a splicing mode, the connecting assembly comprises a first connecting ring (9), a second connecting ring (10) and a plurality of connecting pieces, the first connecting ring (9) is arranged along the first half shell (71) and the second half shell (72) and is attached to the outer edge of the first half shell (71) along the first connecting ring (10) and the second half shell (72), the connecting pieces are arranged between the first connecting ring (9) and the second connecting ring (10) to detachably connect the first connecting ring (9) with the second connecting ring (10); the connecting piece comprises a connecting bolt (11) and a connecting nut (12), the rod part of the connecting bolt (11) penetrates through the first connecting ring (9) and the second connecting ring (10), the connecting nut (12) is in threaded sleeve connection with the connecting bolt (11), the connecting nut (12) is matched with the connecting bolt (11) to clamp and fix the first connecting ring (9) and the second connecting ring (10), one end, far away from a rotating shaft (4), of the connecting rod (6) is fixedly connected with the first connecting ring (9), the connecting assembly is used for realizing detachable connection of the first half shell (71) and the second half shell (72), a plurality of pickling holes (8) are formed in the first half shell (71) and the second half shell (72), and the inner cavity of the pickling shell (7) is communicated with the outside through the pickling holes (8).
2. A seamless steel pipe pickling apparatus according to claim 1, wherein: the pickling tank is characterized in that an acid mist treatment assembly is arranged on the pickling tank (1), the acid mist treatment assembly comprises a connecting pipe (13) and acid mist treatment equipment, one end of the connecting pipe (13) is connected with the top end of one side wall of the pickling tank (1), and one end of the connecting pipe (13) away from the pickling tank (1) is connected with the input end of the acid mist treatment equipment.
3. A seamless steel pipe pickling apparatus according to claim 2, characterised in that: the connecting pipe (13) and the pickling tank (1) are connected in an upward inclined structure.
4. A pickling method of a seamless steel pipe pickling apparatus according to claim 1, characterized in that the method comprises:
s1, placing a seamless steel pipe in each pickling shell (7), and adding pickling solution into the pickling tank (1) until all the pickling shells (7) are completely immersed in the pickling solution;
s2, covering the cover body (2), and starting the motor (5) to enable the rotating shaft (4) to rotate in the same direction, wherein the rotation time is at least 1 minute;
s3, adjusting the steering direction of the motor (5) to enable the rotating shaft (4) to reversely rotate, wherein the rotating time is at least 1 minute;
s4, repeating the step S2 and the step S3 at least three times;
s5, closing the motor (5), emptying the pickling solution in the pickling tank (1) after the rotating shaft (4) is completely stationary, and taking out the seamless steel pipes in each pickling shell (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111098265.6A CN113862688B (en) | 2021-09-18 | 2021-09-18 | Seamless steel tube pickling device and pickling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111098265.6A CN113862688B (en) | 2021-09-18 | 2021-09-18 | Seamless steel tube pickling device and pickling method |
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| CN113862688A CN113862688A (en) | 2021-12-31 |
| CN113862688B true CN113862688B (en) | 2024-01-26 |
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| CN210215555U (en) * | 2019-04-28 | 2020-03-31 | 王皓寓 | A acid dip pickle for auto-parts surface treatment usefulness |
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| JP2021021088A (en) * | 2019-07-24 | 2021-02-18 | 日本製鉄株式会社 | Metal pipe manufacturing method and acid cleaning acceleration member used therefor |
| CN211713234U (en) * | 2019-09-23 | 2020-10-20 | 王益丰 | Zinc plating uniform equipment |
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| CN111945090A (en) * | 2020-07-09 | 2020-11-17 | 王迁 | Production process and device of galvanized welded steel pipe |
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