CN210438844U - Pickling device for stainless seamless pipe - Google Patents
Pickling device for stainless seamless pipe Download PDFInfo
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- CN210438844U CN210438844U CN201921415955.8U CN201921415955U CN210438844U CN 210438844 U CN210438844 U CN 210438844U CN 201921415955 U CN201921415955 U CN 201921415955U CN 210438844 U CN210438844 U CN 210438844U
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Abstract
The utility model discloses a nonrust seamless pipe pickling plant relates to seamless pipe processing production technical field, and its technical scheme main points are: the pickling tank comprises a pickling tank, wherein a cover plate is hermetically arranged at a tank opening of the pickling tank, a plurality of supporting plates are arranged on two symmetrical tank walls of the pickling tank in a sliding manner, the supporting plates on the same horizontal plane are arranged in an array manner, a plurality of rows of the supporting plates are arranged at equal intervals along the vertical direction of the tank walls of the pickling tank, a driving piece is arranged on the outer tank wall of the pickling tank, and the driving piece sequentially drives the supporting plates on the same horizontal plane to slide on the tank walls of the pickling tank in a reciprocating manner; has the function of improving the pickling effect of the stainless seamless pipe.
Description
Technical Field
The utility model relates to a seamless pipe processing production technical field, more specifically says that it relates to a nonrust seamless pipe pickling device.
Background
When stainless steel is hot-rolled from a steel slab into various plates and profiles, the surface is exposed to O in the air2The oxidation generates a black and yellow dense oxide layer, and the processed stainless steel must be subjected to pickling treatment in order to improve the appearance and corrosion resistance of the stainless steel.
In the prior art, mixed acid (HNO) is generally adopted in the acid cleaning of the stainless seamless pipe3+ HF) acid cleaning process to form oxide film protecting layer on the surface and raise the corrosion resisting capacity of the steel pipe; the mixed acid has strong corrosivity and oxidizability, and the mixed acid provides strong corrosion resistance for equipment and materials of a pickling lineHigh requirements; the pickling bath generally has two forms, namely a trench type, namely the pickling bath is embedded in a trench which is positioned on the ground and is concave inwards, and the trench is matched with the size of the pickling bath. Secondly, the steel pipe is in a floor type, namely, the steel pipe is mainly soaked in the pickling solution when the pickling tank is used for pickling.
The Chinese patent with the publication number of CN202705496U discloses a stainless steel pipe pickling tank, which comprises a tank body, wherein the tank body comprises a tank wall, and the tank wall comprises a metal intermediate layer and epoxy glass resin layers coated on the inner side and the outer side of the metal intermediate layer; in the above patent, stainless steel pipes are stacked together in pickling, so that the stainless seamless pipes in contact with each other are not pickled with the pickling solution, thereby affecting the pickling effect of the steel pipes.
SUMMERY OF THE UTILITY MODEL
To the deficiency that prior art exists, the utility model aims to provide a nonrust seamless pipe pickling device has the effect that improves nonrust seamless pipe pickling effect.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a nonrust seamless pipe pickling device, includes the pickling bath the sealed apron that is provided with of pool mouth department of pickling bath all slide on two pool walls of pickling bath symmetry and be provided with a plurality of layer boards, a plurality of on the same horizontal plane the layer board is to arrange and puts, the multirow the layer board is arranged along the vertical direction equidistance of pickling bath pool wall, and the outer pool wall mounting of pickling bath has the driving piece, on the same horizontal plane of driving in proper order the layer board reciprocating sliding in on the pool wall of pickling bath.
So set up, when the apron on the pickling bath is opened, the layer board of below passes through the driving piece salient outside the pool wall of pickling bath in the pickling bath, corresponding lifting device of rethread places the seamless pipe on the layer board on same horizontal plane, then the layer board of second row passes through the driving piece salient outside the pool wall of pickling bath, lifting device hoists again on seamless pipe and this row's layer board, place multirow seamless pipe on the layer board in proper order with this, realize that the seamless pipe is placed the purpose in the pickling bath, when the pickling, make and separate each other in the space between the seamless pipe, be favorable to seamless pipe and acidizing fluid fully to contact, it has the pickling effect of improvement nonrust seamless pipe.
Further setting: the supporting plates are U-shaped plates, and the supporting plates on the same horizontal plane are connected in sequence.
So set up, the seamless pipe of being convenient for is placed on the U template, improves the stability of placing of seamless pipe on the layer board.
Further setting: the supporting plates on the adjacent rows are arranged in a staggered mode.
So set up, be convenient for when follow-up washing to the cleaning action of seamless pipe.
Further setting: the pickling tank is characterized in that rollers are rotatably installed on two sides of the cover plate, installation guide rails are fixedly arranged on two sides of the pickling tank along the length direction of the pickling tank, the rollers are arranged on the installation guide rails in a rolling mode, and the cover plate is driven by a driving device to be in reciprocating motion above the pickling tank.
So set up, impel the gyro wheel to be in through drive arrangement and roll on the installation guide rail, produce relative movement between apron and the pickling bath, realize the apron to the effect of opening or sealing between the pickling bath.
Further setting: the periphery of the opening of the pickling tank is provided with a high-pressure water spray head used for washing a seamless pipe in the pickling tank, and the high-pressure water spray head is connected with a water supply source.
By the arrangement, the seamless pipe after being pickled in the pickling tank is washed by the high-pressure water spray head, so that the pickling quality of the seamless pipe after being pickled is improved.
Further setting: and air spray heads used for drying the seamless pipes subjected to pickling in the pickling tank are arranged on the periphery of the opening of the pickling tank, and the air spray heads are connected with an air pump.
By the arrangement, the seamless pipe after being pickled in the pickling tank is blown by the air nozzle, so that the pickling quality of the seamless pipe after being pickled is improved.
Further setting: and a heater is arranged at the bottom of the pickling tank.
By the arrangement, the acid liquor in the acid washing tank is heated during acid washing, so that the acid washing quality and the acid washing efficiency during acid washing are improved; in the process of re-drying, the heating is carried out by a heater, so that the drying efficiency after pickling and drying is improved.
Further setting: and a plurality of stirring paddles are arranged at the bottom of the pickling tank.
So set up, through stirring the acidizing fluid in the pickling bath during pickling, pickling quality and pickling efficiency when improving the pickling.
Further setting: and an acid mist detector for detecting the concentration of acid mist in the pickling tank is arranged outside the cover plate.
So set up, detect the acid mist in the pickling bath through the period at the pickling, real time monitoring when improving the pickling, and then improve the pickling quality of pickling wait seamless pipe.
Further setting: the inner tank wall of the pickling tank is provided with an epoxy resin corrosion-resistant layer.
So set up, make the interior wall of its pickling bath have certain corrosion resistance through epoxy corrosion resistant layer, improve the life of pickling bath, improve its performance.
By adopting the technical scheme, the utility model discloses relative prior art compares, has following advantage:
1. the supporting plate is arranged on the pickling tank, the driving piece protrudes out of or is accommodated in the tank wall of the pickling tank, when the seamless pipes are placed, the seamless pipes are sequentially placed on the supporting plate through the corresponding hoisting equipment, and when the seamless pipes are pickled, the seamless pipes are separated from each other in space, so that the seamless pipes can be fully contacted with acid liquor, and the pickling effect of the stainless seamless pipes can be improved;
2. the acid liquor in the acid washing tank is heated during acid washing, so that the acid washing quality and the acid washing efficiency during acid washing are improved; in the process of secondary blow-drying, the heating is carried out by a heater, so that the blow-drying efficiency after pickling and blow-drying is improved;
3. the acid mist in the pickling tank is detected during pickling, the high-pressure water jet washes the pickled seamless pipe in the pickling tank, and the air jet blows the pickled seamless pipe in the pickling tank, so that the pickling quality of the pickled seamless pipe is improved.
Drawings
FIG. 1 is a diagram showing a state in pickling in a pickling apparatus for a stainless seamless pipe;
FIG. 2 is a diagram showing a state where a cover plate is opened in a pickling apparatus for a stainless seamless pipe;
FIG. 3 is a sectional view at the level of a stainless seamless tube pickling apparatus;
FIG. 4 is a sectional view at the vertical plane of a stainless seamless tube pickling apparatus;
FIG. 5 is a schematic view showing a partial structure of a recovery tank in a pickling apparatus for a stainless seamless pipe.
In the figure: 1. a pickling tank; 11. a support plate; 12. a drive member; 13. a heater; 14. a stirring paddle; 15. a high pressure water jet head; 16. an air shower; 17. a recovery tank; 2. a cover plate; 21. a roller; 22. installing a guide rail; 23. an acid mist detector; 3. a drive device; 4. a squeegee; 5. acid-resistant rubber pad.
Detailed Description
The pickling apparatus for a stainless seamless pipe is further described with reference to the drawings.
Example 1: a pickling device for a stainless seamless pipe comprises a pickling tank 1 and a cover plate 2 which is arranged at the opening of the pickling tank 1 in a sliding manner and is in an arch shape, as shown in figure 1.
As shown in fig. 1, a plurality of rollers 21 are rotatably mounted on two sides of the cover plate 2, mounting rails 22 are fixedly arranged on two sides of the pickling tank 1 along the length direction of the pickling tank, and the rollers 21 on the two sides are respectively arranged on the mounting rails 22 on the two sides in a rolling manner; meanwhile, the cover plate 2 is driven by the driving device 3 to be in reciprocating motion above the pickling tank 1, so that the cover plate 2 is arranged above the pickling tank 1 in a sliding mode along the length direction of the pickling tank 1, and the effect of sealing or opening the tank opening of the pickling tank 1 by the cover plate 2 is achieved. The drive 3 may be a winch arrangement or a chain drive arrangement.
As shown in fig. 2 and 3, a plurality of supporting plates 11 are slidably inserted into two symmetrical walls of the pickling tank 1, the supporting plates 11 are U-shaped plates, and the supporting plates 11 on the same horizontal plane are arranged in an array and are sequentially connected through a connecting rod; the multiple rows of supporting plates 11 are arranged at equal intervals along the vertical direction of the wall of the pickling tank 1, and the supporting plates 11 on adjacent rows are arranged in a staggered manner; the outer wall of the pickling tank 1 is fixedly provided with a driving part 12, such as an air cylinder or a hydraulic cylinder or a linkage shaft mechanism, the driving part 12 sequentially drives the supporting plate 11 on the same horizontal plane to be inserted on the wall of the pickling tank 1 in a reciprocating sliding manner, and the effect that the supporting plate 11 protrudes out or is accommodated on the wall of the pickling tank 1 is realized.
As shown in FIGS. 2 and 3, in order to improve the pickling process of seamless pipes in the pickling tank 1, a heater 13 is installed at the bottom of the pickling tank 1, so that the liquid temperature of the pickling tank 1 during pickling is between 50 and 60 ℃; meanwhile, in order to improve the uniformity of the acid liquor in the pickling tank 1, a plurality of stirring paddles 14 are arranged at the bottom of the pickling tank 1.
As shown in fig. 2 and 4, in order to perform a washing step of the seamless pipe after the inside of the pickling tank 1 is pickled, a high-pressure water jet 15 for washing the seamless pipe inside the pickling tank 1 is provided around the tank opening of the pickling tank 1, and a water supply source is connected to the high-pressure water jet 15.
As shown in fig. 2 and 4, in order to perform a drying process of the seamless pipe after the washing in the pickling tank 1, an air nozzle 16 for drying the seamless pipe after the washing in the pickling tank 1 is disposed around the tank opening of the pickling tank 1, and an air pump is connected to the air nozzle 16.
As shown in fig. 4, in order to monitor the acid mist concentration in the pickling tank 1 in real time during pickling, an acid mist detector 23 for detecting the acid mist concentration in the pickling tank 1 is provided outside the cover plate 2; in order to improve the corrosion resistance of the pickling tank 1, an epoxy resin corrosion-resistant layer is arranged on the inner tank wall of the pickling tank 1.
As shown in fig. 4 and 5, for the purpose of reducing the environmental pollution of the pickling tank 1, a recovery tank 17 is disposed at one end of the pickling tank 1, a scraper 4 is disposed on a tank wall of the recovery tank 17, an acid-resistant rubber pad 5 is fixedly disposed on the scraper 4, the acid-resistant rubber pad 5 is any one of a silica gel pad, a fluorine rubber pad, an ethylene propylene diene monomer rubber pad and an acrylate rubber pad, and the acid-resistant rubber pad 5 is located above the recovery tank 17 and abuts against an inner wall of the cover plate 2.
The working principle is as follows: the cover plate 2 on the pickling tank 1 is opened through the driving device 3, the supporting plate 11 at the lowest position in the pickling tank 1 protrudes out of the tank wall of the pickling tank 1 through the driving piece 12, then seamless pipes are placed on the supporting plate 11 on the same horizontal plane through corresponding hoisting equipment, then the supporting plate 11 in the second row protrudes out of the tank wall of the pickling tank 1 through the driving piece 12, the hoisting equipment hoists the seamless pipes and the supporting plate 11 in the row again, and therefore multiple rows of seamless pipes are sequentially placed on the supporting plate 11, and the purpose that the seamless pipes are placed in the pickling tank 1 is achieved; the cover plate 2 is sealed at the opening of the pickling tank 1 by the driving device 3, then the seamless pipe in the pickling tank 1 is pickled by a pickling process, the seamless pipe in the pickling tank 1 is washed by the pickling process sequentially through the high-pressure water spray head 15, the cover plate 2 is opened by the driving device 3, and during the pickling process, acid mist water drops on the inner wall of the cover plate 2 are removed by the scraper 4, so that the acid mist drops fall into the recovery tank 17 after being gathered, and the purpose that the acid mist drops on the inner wall of the cover plate 2 randomly after the cover plate 2 is opened is reduced; and finally, the seamless pipe washed in the pickling tank 1 is dried through the air nozzle 16, so that the effect of drying the seamless pipe after pickling is realized, and the aims of improving the pickling effect of the stainless seamless pipe and reducing the environmental pollution are fulfilled.
Example 2: an acid washing process for a stainless seamless tube based on embodiment 1 is shown in the attached drawings, and specifically comprises the following steps:
s1, placing a seamless pipe: the seamless pipe is hoisted to a U-shaped supporting plate 11 in the pickling tank 1 through hoisting equipment, the supporting plate 11 on the same horizontal plane is controlled to protrude out of the outer tank wall of the pickling tank 1 through a driving piece 12 in sequence, the seamless pipe is arranged in the pickling tank 1 in a staggered manner in a matrix shape, and then the cover plate 2 is sealed on the tank opening of the pickling tank 1.
S2, crude acid washing: after the cover plate 2 is sealed in the pickling tank 1, introducing the crude acid solution in the crude acid storage tank into the pickling tank 1 to enable the seamless pipe to be soaked in the crude acid solution; then, adding 1.5 wt% of emulsifier, 0.35 wt% of corrosion inhibitor and 0.35 wt% of acid mist inhibitor into the pickling tank 1, starting a heater 13 and a stirring paddle 14 at the bottom of the pickling tank 1 to enable the temperature of the pickling tank 1 during pickling to be 50-60 ℃, soaking for 120-150 min, and discharging the crude acid solution in the pickling tank 1 into a crude acid storage tank after oxide skin and rust are removed; meanwhile, the acid mist concentration in the pickling tank 1 is detected in real time by an acid mist detector 23 outside the cover plate 2.
S2, washing: discharging the crude acid solution in the pickling tank 1 back to the crude acid storage tank, introducing clean water into the pickling tank 1 through the water storage tank, soaking the seamless tube in the clean water for 10-15 min, and discharging the clean water out of the pickling tank 1.
S3, fine pickling: introducing the refined acid solution in the refined acid storage tank into an acid washing tank 1, wherein the refined acid solution adopts HNO3And HF mixed solution, wherein HNO3Soaking the seamless pipe in a refined acid solution with the content of 220g/l, the content of HF (hydrogen fluoride) of 30g/l and the content of metal ions of 15g/l for 10-20 min, and discharging the refined acid solution in the pickling tank 1 into a refined acid storage tank; during the period, the heater 13 and the stirring paddle 14 at the bottom of the pickling tank 1 are started, so that the temperature of the liquid in the pickling tank 1 during pickling is between 50 and 60 ℃, and the acid mist concentration in the pickling tank 1 is detected in real time through the acid mist detector 23 outside the cover plate 2.
S4, high-pressure water washing: and (2) discharging the concentrated acid solution in the pickling tank 1 back into a concentrated acid storage tank, introducing clear water into the pickling tank 1 through the water storage tank, soaking the seamless pipe in the clear water for 20-30 min, discharging the clear water out of the pickling tank 1, and washing the seamless pipe in the pickling tank 1 through a high-pressure water spray head 15 arranged on the periphery of a tank opening of the pickling tank 1.
S5, drying: after washing, discharging the washing water in the pickling tank 1 out of the pickling tank 1, controlling the cover plate 2 to slide along the length direction of the pickling tank 1 through the driving device 3, enabling the roller 21 to be positioned on the installation guide rail 22 to roll, gradually opening the pickling tank 1 by the cover plate 2, enabling the acid-resistant rubber pad 5 on the scraper 4 to be abutted against the inner wall of the cover plate 2 during the movement of the cover plate 2 above the pickling tank 1, enabling the acid-resistant rubber pad 5 and the inner wall of the cover plate 2 to move relatively, and scraping acid mist water drops on the inner wall of the cover plate 2 into the recovery tank 17 to achieve the purpose of removing the acid mist-containing water drops on the inner wall of the cover plate 2; after the cover plate 2 completely opens the pickling tank 1, the seamless pipe in the pickling tank 1 is dried through the air spray nozzles 16 arranged on the periphery of the opening of the pickling tank 1, and meanwhile, the heater 13 is opened.
S6, detection and cleaning: after the seamless pipes in the pickling tank 1 are dried, a row of seamless pipes on a uniform horizontal plane are sequentially hung outside the pickling tank 1 through a hoisting device, finally, the stainless seamless pipes are cleaned and detected, and meanwhile, the inside of the pickling tank 1 is cleaned for the next pickling process.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a nonrust seamless pipe pickling plant, includes pickling bath (1), its characterized in that: the sealed apron (2) that is provided with of pool mouth department of pickling bath (1) all slide on two pool walls of pickling bath (1) symmetry and be provided with a plurality of layer boards (11), a plurality of on the same horizontal plane layer board (11) are to arrange and put, the multirow the vertical direction equidistance of pickling bath (1) pool wall is followed in layer board (11) arranges, has installed driving piece (12) on the outer pool wall of pickling bath (1), driving piece (12) drive in proper order on the same horizontal plane layer board (11) reciprocating sliding in on the pool wall of pickling bath (1).
2. The pickling apparatus for a stainless seamless pipe according to claim 1, wherein: the supporting plates (11) are U-shaped plates, and the supporting plates (11) on the same horizontal plane are connected in sequence.
3. The pickling apparatus for a stainless seamless pipe according to claim 1 or 2, wherein: the supporting plates (11) on the adjacent rows are arranged in a staggered mode.
4. The pickling apparatus for a stainless seamless pipe according to claim 1, wherein: the both sides of apron (2) are rotated and are installed gyro wheel (21) the both sides of pickling bath (1) are provided with installation guide rail (22) along its length direction is fixed, gyro wheel (21) roll arrange in on installation guide rail (22), apron (2) are in pickling bath (1) top reciprocating motion through a drive arrangement (3) drive apron (2).
5. The pickling apparatus for a stainless seamless pipe according to claim 1, wherein: the pickling tank is characterized in that a high-pressure water spray head (15) used for washing a seamless pipe in the pickling tank (1) is arranged on the periphery of a tank opening of the pickling tank (1), and the high-pressure water spray head (15) is connected with a water supply source.
6. The pickling apparatus for a stainless seamless pipe according to claim 1, wherein: the pickling tank is characterized in that air spray heads (16) used for drying the seamless pipes after pickling in the pickling tank (1) are arranged on the periphery of the tank opening of the pickling tank (1), and the air spray heads (16) are connected with an air pump.
7. The pickling apparatus for a stainless seamless pipe according to claim 1, wherein: a heater (13) is installed at the bottom of the pickling tank (1).
8. The pickling apparatus for a stainless seamless pipe according to claim 1, wherein: a plurality of stirring paddles (14) are arranged at the bottom of the pickling tank (1).
9. The pickling apparatus for a stainless seamless pipe according to claim 1, wherein: an acid mist detector (23) for detecting the concentration of acid mist in the pickling tank (1) is arranged outside the cover plate (2).
10. The pickling apparatus for a stainless seamless pipe according to claim 1, wherein: the inner tank wall of the pickling tank (1) is provided with an epoxy resin corrosion-resistant layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921415955.8U CN210438844U (en) | 2019-08-28 | 2019-08-28 | Pickling device for stainless seamless pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921415955.8U CN210438844U (en) | 2019-08-28 | 2019-08-28 | Pickling device for stainless seamless pipe |
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| Publication Number | Publication Date |
|---|---|
| CN210438844U true CN210438844U (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921415955.8U Active CN210438844U (en) | 2019-08-28 | 2019-08-28 | Pickling device for stainless seamless pipe |
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| CN (1) | CN210438844U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850587A (en) * | 2020-07-01 | 2020-10-30 | 浙江隆达不锈钢有限公司 | Automatic processing equipment for stainless steel seamless steel pipe |
| CN113058920A (en) * | 2021-04-30 | 2021-07-02 | 无锡金羊管件有限公司 | Multifunctional steel cleaning and sorting equipment |
| CN117286506A (en) * | 2023-11-24 | 2023-12-26 | 泰州威绿环保科技有限公司 | Be used for stainless steel goods pickling equipment |
-
2019
- 2019-08-28 CN CN201921415955.8U patent/CN210438844U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850587A (en) * | 2020-07-01 | 2020-10-30 | 浙江隆达不锈钢有限公司 | Automatic processing equipment for stainless steel seamless steel pipe |
| CN113058920A (en) * | 2021-04-30 | 2021-07-02 | 无锡金羊管件有限公司 | Multifunctional steel cleaning and sorting equipment |
| CN117286506A (en) * | 2023-11-24 | 2023-12-26 | 泰州威绿环保科技有限公司 | Be used for stainless steel goods pickling equipment |
| CN117286506B (en) * | 2023-11-24 | 2024-03-22 | 泰州威绿环保科技有限公司 | Be used for stainless steel goods pickling equipment |
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Denomination of utility model: A pickling device for stainless seamless pipe Effective date of registration: 20221102 Granted publication date: 20200501 Pledgee: Wenzhou Financing Guarantee Co.,Ltd. Pledgor: Zhejiang Fengye Group Co.,Ltd. Registration number: Y2022110000301 |