Circulating pickling tank for pickling steel pipes

Abstract

The utility model discloses a circulating pickling bath for pickling steel pipes, and relates to the technical field of pickling equipment, a plurality of groups of cleaning roll shafts are arranged in the middle of a tank body of the pickling bath at equal intervals, and a transmission gear is arranged at one end of a shaft rod of each group of cleaning roll shafts; a plurality of groups of stirring paddles are arranged in the middle of the bottom of the pickling tank at equal intervals, and the bottom ends of central shafts of the stirring paddles are rotationally connected with a transmission shaft mounted on the pickling tank. Steel pipes are placed between the adjacent spiral brush sleeves, on the basis of rolling brush type cleaning of the spiral brush sleeves carried by the cleaning roller shafts, on one hand, the steel pipes are driven to rotate so that dynamic and comprehensive pickling work can be conveniently conducted, and on the other hand, synchronous brushing and cleaning work can be conducted on the rotating steel pipes; rust stains and the like on the surface of the steel pipe are continuously and dynamically brushed and cleaned, and a pickling solution can be pushed to dynamically stir and flow through synchronous stirring driving of the stirring paddle, so that continuous scouring and pickling work is performed on the steel pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of pickling equipment, in particular to a circulating pickling tank for pickling steel pipes. Background Art

[0002] During the manufacturing and transportation process, steel pipes are susceptible to oxidation, corrosion and pollution, and will form oxide scale, rust and the like on the surface. If not treated in time, the quality and service life of the steel pipes will inevitably be reduced. Through the pickling of steel pipes, the surface oxide scale and rust can be removed to achieve the purpose of cleaning and protecting the steel pipes. The pickling of steel pipes is usually carried out in a pickling tank, such as a high-efficiency circulating stainless steel pipe pickling tank (public announcement number CN216808970U) disclosed in the China Patent Network. When such a device is pickling the steel pipe, the stainless steel pipe is placed in the pickling liquid, and the rotation of the cleaning roller drives the stainless steel pipe to rotate and pickle, so that the pickling effect is better, and then the pickled stainless steel pipe will be taken out by the scrubbing brush. The rotation and scrubbing of the cleaning brush can completely clean the surface oxide of the stainless steel pipe, thereby preventing the stainless steel pipe that has been pickled from being cleaned twice.

[0003] However, there are still some shortcomings in the above-mentioned patents and the steel pipe pickling tanks adopted in the existing market: the existing method of using a rotating component to drive the steel pipe for rotation pickling, and then taking out the rust on the surface of the steel pipe to clean the rust on the steel pipe, because the rust always adheres to the stainless steel surface during the pickling process, the pickling of the rust on the steel pipe is very likely to be incomplete, and the rust on the surface of the steel pipe cannot be effectively removed during the subsequent wiping and cleaning, and the pickling efficiency is not high enough. To this end, those skilled in the art provide a circulating pickling tank for steel pipe pickling to solve the problems raised in the above background technology. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a circulating pickling tank for steel pipe pickling, which solves the problem that the prior steel pipe pickling efficiency is not high enough as mentioned in the above background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a circulating pickling tank for pickling steel pipes, comprising a pickling tank;

[0006] A plurality of groups of cleaning rollers are arranged at equal intervals in the middle of the pickling tank, one end of the shaft of each group of cleaning rollers is provided with a transmission gear, and two adjacent groups of transmission gears are meshed and driven by synchronous gears;

[0007] A plurality of stirring paddles are arranged at equal intervals in the middle of the bottom of the pickling tank, and the bottom end of the central axis of the stirring paddle is rotatably connected to a transmission shaft installed on the pickling tank;

[0008] Both sides of the bottom of the pickling tank are provided with material accumulation troughs, and the inside of the trough bodies of the two groups of material accumulation troughs are rotatably connected with spiral pushing augers.

[0009] As a further technical solution of the utility model: a spiral brush sleeve is arranged on the outer side of the shaft of the cleaning roller, and the spiral brush sleeve is arranged symmetrically in forward and reverse directions with the center of the shaft of the cleaning roller as the boundary.

[0010] As a further technical solution of the utility model: a bevel gear A is provided at the bottom end of the shaft of each group of the stirring paddles, and a plurality of groups of bevel gears B corresponding to the bevel gears A are arranged on the outer side of the shaft of the transmission shaft.

[0011] As a further technical solution of the utility model: a second synchronous pulley A is provided at one end of the shaft rod of the transmission shaft, a second synchronous pulley B is provided at one end of the shaft rod of one group of the cleaning roller shafts, and the second synchronous pulley A is connected to the second synchronous pulley B through a second synchronous belt transmission, and a brake motor is installed on one side of the tank body of the pickling tank along the shaft rod direction of the transmission shaft.

[0012] As a further technical solution of the utility model: a first synchronous belt pulley is provided at one end of the central axis of the two groups of spiral push augers, and the two groups of first synchronous belt pulleys are connected by a first synchronous belt transmission.

[0013] As a further technical solution of the utility model: a transmission motor is installed on one side of the pickling tank body along the central axis direction of one group of spiral push augers, and a differential pulley A is provided at the output end of the transmission motor, and a differential pulley B is installed at the output end of the central axis of one group of spiral push augers, and the differential pulley A and the differential pulley B are connected by a differential belt drive.

[0014] As a further technical solution of the utility model: a drain valve is installed along one end of the notch of the material accumulation tank at the bottom of the pickling tank.

[0015] The utility model provides a circulating pickling tank for steel pipe pickling, which has the following beneficial effects compared with the prior art:

[0016] 1. When the steel pipe pickling tank of this design is pickling the steel pipe, the steel pipe is placed between adjacent spiral brush sleeves. The roller brush cleaning of the spiral brush sleeve carried by the cleaning roller shaft itself drives the steel pipe to rotate on the one hand, so as to facilitate dynamic and comprehensive pickling work. On the other hand, the rotating steel pipe is brushed and cleaned synchronously, and the rust on the surface of the steel pipe is brushed and cleaned uninterruptedly to ensure the high efficiency and comprehensiveness of the pickling of the steel pipe in the pickling tank. At the same time, the pickling can be driven by the synchronous stirring of the stirring paddle to promote the dynamic stirring flow of the pickling liquid, so that the steel pipe is flushed and pickled uninterruptedly, thereby improving the pickling efficiency.

[0017] 2. After long-term pickling of steel pipes, when the pickling liquid needs to be replaced, the pickling waste is collected by utilizing the accumulation tank, and the pickling liquid and the pickling waste are spirally pushed out under the spiral stirring of the spiral push auger, thereby ensuring the comprehensiveness and cleanliness of the discharge and reducing the difficulty of cleaning for subsequent staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a circulating pickling tank for pickling steel pipes;

[0019] Figure 2 A first partial cross-sectional view of a circulating pickling tank for pickling steel pipes;

[0020] Figure 3 It is a schematic diagram of the transmission of a cleaning roller in a circulating pickling tank for pickling steel pipes;

[0021] Figure 4 A second partial cross-sectional view of a circulating pickling tank for pickling steel pipes;

[0022] Figure 5 The diagram is a transmission diagram of a stirring paddle in a circulating pickling tank for pickling steel pipes.

[0023] In the figure: 1. pickling tank; 2. transmission gear; 3. synchronous gear; 4. first synchronous belt; 5. first synchronous pulley; 6. cleaning roller; 7. brake motor; 8. second synchronous pulley A; 9. second synchronous belt; 10. second synchronous pulley B; 11. material accumulation trough; 12. spiral push auger; 13. transmission motor; 14. differential pulley A; 15. differential belt; 16. differential pulley B; 17. drain valve; 18. stirring paddle; 19. bevel gear A; 20. bevel gear B; 21. transmission shaft. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5The utility model provides a technical solution for a circulating pickling tank for pickling of steel pipes: a circulating pickling tank for pickling of steel pipes, comprising a pickling tank 1, wherein a plurality of groups of cleaning rollers 6 are arranged in an equidistant manner in the middle of the tank body of the pickling tank 1, a transmission gear 2 is arranged at one end of the shaft of each group of cleaning rollers 6, and two adjacent groups of transmission gears 2 are meshed and transmitted through a synchronous gear 3, a spiral brush sleeve is arranged on the outer side of the shaft of the cleaning roller 6, and the spiral brush sleeve is symmetrically arranged in positive and reverse directions with the center of the shaft of the cleaning roller 6 as the boundary, by arranging the spiral brush sleeves in positive and reverse directions on the cleaning roller 6, while the cleaning roller 6 is used to promote the dynamic rotation of the steel pipe, the spiral brush sleeve can also be used to perform dynamic rolling brush cleaning of the steel pipe with centripetal force, so that the rust on the steel pipe is brushed and cleaned in an uninterrupted manner, thereby ensuring the continuity and high efficiency of pickling.

[0026] A plurality of stirring paddles 18 are arranged at equal intervals in the middle of the bottom of the pickling tank 1, and the bottom end of the central axis of the stirring paddle 18 is rotatably connected to a transmission shaft 21 installed on the pickling tank 1. A bevel gear A19 is arranged at the bottom end of the shaft of each group of stirring paddles 18, and a plurality of bevel gears B20 corresponding to the bevel gears A19 are arranged on the outer side of the shaft of the transmission shaft 21. When the transmission shaft 21 rotates, the bevel gear B20 is driven to rotate, and the one-to-one meshing transmission of the bevel gear B20 and the bevel gear A19 is utilized to drive the stirring paddle 18 to rotate, thereby promoting dynamic stirring of the pickling liquid in the pickling tank 1, and performing uninterrupted flushing pickling on the steel pipe, thereby improving the pickling efficiency.

[0027] A second synchronous pulley A8 is provided at one end of the shaft of the transmission shaft 21, and a second synchronous pulley B10 is provided at one end of the shaft of one group of cleaning roller shafts 6, and the second synchronous pulley A8 and the second synchronous pulley B10 are connected through a second synchronous belt 9. A brake motor 7 is installed on one side of the tank body of the pickling tank 1 along the shaft direction of the transmission shaft 21. By controlling the operation of the brake motor 7, under the transmission combination of the second synchronous pulley A8, the second synchronous belt 9, and the second synchronous pulley B10, on the one hand, the transmission shaft 21 is driven to rotate, and on the other hand, the cleaning roller shaft 6 is driven to rotate, so as to perform the corresponding steel pipe pickling work.

[0028] Both sides of the bottom of the pickling tank 1 are provided with material accumulation troughs 11, and the trough bodies of the two groups of material accumulation troughs 11 are rotatably connected with spiral push augers 12. One end of the central axis of the two groups of spiral push augers 12 is provided with a first synchronous pulley 5, and the two groups of first synchronous pulleys 5 are connected through the first synchronous belt 4 for transmission. The bottom of the pickling tank 1 is connected along one end of the notch of the material accumulation trough 11 and a drain valve 17 is installed. When the stirring paddle 18 stirs and rotates, the rusty waste of the steel pipe at the bottom can be transferred to the material accumulation trough 11. Subsequently, the transmission combination between the first synchronous pulley 5 and the first synchronous belt 4 is used to drive the two groups of spiral push augers 12 to rotate, so that the waste in the material accumulation trough 11 is driven by spiral stirring together with the pickling waste liquid, and the waste liquid and the combination of the waste are discharged through the drain valve 17, thereby reducing the difficulty of cleaning for subsequent staff.

[0029] A transmission motor 13 is installed on one side of the pickling tank 1 along the central axis direction of one group of spiral push augers 12, and a differential pulley A14 is provided at the output end of the transmission motor 13. A differential pulley B16 is installed at the central axis output end of one group of spiral push augers 12, and the differential pulley A14 is connected to the differential pulley B16 through a differential belt 15. By controlling the transmission motor 13 to work, the spiral push augers 12 are driven to rotate under the transmission combination of the differential pulley A14, the differential belt 15 and the differential pulley B16, so as to push the waste liquid and waste material in the pickling tank 1 to be discharged together.

[0030] The working principle of the utility model is as follows: when pickling steel pipes in a pickling tank, a proper amount of pickling liquid is injected into the pickling tank 1 in advance, and then the steel pipes to be pickled are hung and immersed in the pickling tank 1, and are arranged in sequence between adjacent cleaning rollers 6 for pickling;

[0031] Then the brake motor 7 is controlled to work, and under the transmission combination of the second synchronous pulley A8, the second synchronous belt 9, and the second synchronous pulley B10, on the one hand, the meshing transmission of the adjacent transmission gear 2 and the synchronous gear 3 is utilized to drive the multiple groups of cleaning rollers 6 to operate in linkage, and while the cleaning rollers 6 are used to promote the dynamic rotation of the steel pipe, the spiral brush sleeves whose shafts are in positive and reverse directions are used to perform centripetal force dynamic rolling brush cleaning on the steel pipe, so that the steel pipe is always close to the center, and the rust on the steel pipe is brushed and cleaned in an uninterrupted form. On the other hand, the transmission shaft 21 is driven to rotate, and the one-to-one meshing transmission of the bevel gear B20 and the bevel gear A19 is used to drive the stirring paddle 18 to rotate, so as to promote the dynamic stirring of the pickling liquid in the pickling tank 1, and the steel pipe is subjected to uninterrupted flushing pickling work, thereby improving the pickling efficiency;

[0032] After the steel pipe is rolled, flushed and pickled, the steel pipe is hoisted out for the next set of cyclic pickling work. When the pickling liquid needs to be replaced for a long time in the subsequent pickling of the steel pipe, the drain valve 17 is opened, and then the transmission motor 13 is controlled to work. Under the transmission combination of the differential pulley A14, the differential belt 15, and the differential pulley B16, it is used as a driving source, and under the transmission combination between the first synchronous pulley 5 and the first synchronous belt 4, the two sets of spiral push augers 12 are driven to rotate, and the waste material in the accumulation tank 11 is driven by spiral stirring together with the pickling waste liquid, and the waste liquid and the combination of the waste material are discharged through the drain valve 17, thereby improving the comprehensiveness of the discharge, reducing the difficulty of cleaning for subsequent staff, and facilitating the efficient recycling of the pickling tank.

[0033] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A circulating pickling tank for steel pipe pickling, characterized in that: comprising a pickling tank (1); A plurality of groups of cleaning rollers (6) are arranged at equal intervals in the middle of the pickling tank (1), one end of the shaft of each group of cleaning rollers (6) is provided with a transmission gear (2), and two adjacent groups of transmission gears (2) are meshed and transmitted via a synchronous gear (3); A plurality of groups of stirring paddles (18) are arranged at equal intervals in the middle of the bottom of the pickling tank (1), and the bottom end of the central axis of the stirring paddle (18) is rotatably connected to a transmission shaft (21) installed on the pickling tank (1); Material accumulation troughs (11) are provided on both sides of the bottom of the pickling tank (1), and spiral push augers (12) are rotatably connected inside the trough bodies of the two groups of material accumulation troughs (11).

2. A circulating pickling tank for steel pipe pickling according to claim 1, characterized in that: A spiral brush sleeve is arranged on the outside of the shaft of the cleaning roller (6), and the spiral brush sleeve is arranged symmetrically in forward and reverse directions with the center of the shaft of the cleaning roller (6) as the boundary.

3. A circulating pickling tank for steel pipe pickling according to claim 1, characterized in that: A bevel gear A (19) is provided at the bottom end of the shaft of each set of the stirring paddles (18), and a plurality of sets of bevel gears B (20) are arranged on the outer side of the shaft of the transmission shaft (21) and are opposite to the bevel gears A (19) one by one.

4. A circulating pickling tank for steel pipe pickling according to claim 1, characterized in that: A second synchronous pulley A (8) is provided at one end of the shaft of the transmission shaft (21), a second synchronous pulley B (10) is provided at one end of the shaft of one group of the cleaning roller shafts (6), and the second synchronous pulley A (8) and the second synchronous pulley B (10) are connected to each other through a second synchronous belt (9), and a brake motor (7) is installed on one side of the tank body of the pickling tank (1) along the shaft direction of the transmission shaft (21).

5. A circulating pickling tank for steel pipe pickling according to claim 1, characterized in that: One end of the central axis of the two sets of spiral push augers (12) is provided with a first synchronous belt pulley (5), and the two sets of first synchronous belt pulleys (5) are connected by a first synchronous belt (4).

6. A circulating pickling tank for steel pipe pickling according to claim 1, characterized in that: A transmission motor (13) is installed on one side of the pickling tank (1) along the central axis direction of one group of spiral push augers (12), and a differential pulley A (14) is provided at the output end of the transmission motor (13). A differential pulley B (16) is installed at the central axis output end of one group of the spiral push augers (12), and the differential pulley A (14) and the differential pulley B (16) are connected by a differential belt (15).

7. A circulating pickling tank for steel pipe pickling according to claim 1, characterized in that: A sewage valve (17) is installed at one end of the notch of the material accumulation tank (11) along the bottom of the pickling tank (1).

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