Energy-saving and environment-friendly steel pipe pickling equipment

Abstract

The application discloses an energy-saving and environment-friendly steel pipe pickling equipment, which comprises a pickling tank, a track for supporting and conveying steel pipes is arranged in the pickling tank, the track comprises a vertical section and an inclined section, the vertical section is arranged at one side of the pickling tank and a feeding port is formed at the top end of the vertical section, a hoist for lifting the steel pipes to a discharging port is arranged at one end of the low part of the inclined section in the pickling tank, a deceleration block is vertically and slidably connected to the bottom wall of the inclined section, the part of the deceleration block protruding from the bottom wall of the inclined section is an arc surface, a stirring impeller is rotatably connected to the pickling tank, a linkage rod extends from the deceleration block, a transmission assembly for transmitting the linkage rod and the stirring impeller is arranged between the linkage rod and the stirring impeller, the linkage rod vertically moves to drive the stirring impeller to rotate, the continuity of the pickling of a large number of steel pipes is realized, the pickling efficiency is high, the rolling of the steel pipes synchronously realizes the stirring of the pickling liquid in the pickling tank, no additional driving source is needed, the equipment is more energy-saving, the smell in the pickling tank is not easy to spread out, and the equipment is safer and more environment-friendly.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment, and in particular to an energy-saving and environmentally friendly steel pipe pickling equipment. Background Technology

[0002] During the production process, steel pipes need to be pickled in pickling tanks to remove oxide scale and rust from the surface of the steel pipes.

[0003] For example, Chinese patent CN218404427U discloses a steel pipe pickling tank, including a tank body with a U-shaped frame inside. A pad is placed on top of the U-shaped frame, and a screw is bolted to the bottom of the pad. A nut is threaded onto the surface of the screw, and steel wire ropes are bolted to both ends of the pad. By selecting a pad that matches the steel pipe, inserting the screw into the through groove, and then threading the nut onto the screw, a pad that matches the steel pipe diameter can be effectively selected for installation. By starting a motor to drive a second gear to rotate, the second gear drives a winding wheel to rotate via a chain and a first gear. The winding wheel then winds up the steel wire rope, which in turn moves the U-shaped frame upward, effectively draining water from the pickled steel pipe.

[0004] However, the number of steel pipes placed on the U-shaped frame during the pickling process is limited, which means that only a small number of steel pipes can be pickled at a time. This is not suitable for pickling large batches of steel pipes, resulting in low pickling efficiency, which needs further improvement. Summary of the Invention

[0005] To further improve pickling efficiency, this application provides an energy-saving and environmentally friendly steel pipe pickling equipment.

[0006] This application provides an energy-saving and environmentally friendly steel pipe pickling equipment, which adopts the following technical solution:

[0007] An energy-saving and environmentally friendly steel pipe pickling equipment includes a pickling tank with a track for supporting and conveying steel pipes. The track includes a vertical section and an inclined section. The vertical section is located on one side of the pickling tank and forms a feed inlet at its top. A discharge outlet is located on the other side of the pickling tank. The higher end of the inclined section is connected to the lower end of the vertical section. A hoist is located in the pickling tank at the lower end of the inclined section to lift the steel pipes to the discharge outlet. A speed reduction block is vertically slidably connected to the bottom wall of the inclined section. The portion of the speed reduction block protruding from the bottom wall of the inclined section is arc-shaped. A reset component is provided on the speed reduction block to drive its top end to protrude from the bottom wall of the inclined section. An agitator impeller is rotatably connected in the pickling tank. A linkage rod extends from the speed reduction block. A transmission assembly is provided between the linkage rod and the agitator impeller to drive both. Vertical movement of the linkage rod causes the agitator impeller to rotate.

[0008] Optionally, the transmission assembly includes a gear and a rack, the rack being fixed to a linkage rod, the gear being fixed to an agitator impeller, and the gear meshing with the rack.

[0009] Optionally, the pickling tank is further provided with a cylinder, and a piston is vertically slidably connected inside the cylinder. The piston is connected to the bottom end of the linkage rod, and a compression chamber is formed between the piston and the bottom wall of the cylinder. The reset member is a spring and is located inside the compression chamber. One end of the reset member is connected to the piston, and the other end is connected to the bottom wall of the cylinder. A connecting pipe communicating with the compression chamber is provided on the cylinder. One end of the connecting pipe is connected to the cylinder, and the other end is connected to the discharge port and an air nozzle is connected to the end of the pipe.

[0010] Optionally, the speed reduction blocks and the stirring impellers are arranged in a one-to-one correspondence and are spaced apart along the length of the inclined section.

[0011] Optionally, the inner wall of the vertical section is provided with a buffer block, which is alternately arranged on two opposite side walls of the vertical section. The buffer block is hemispherical and elastic.

[0012] Optionally, the elevator includes a frame, sprockets, and a chain. The sprockets are rotatably connected to the frame, and the chain connects each sprocket. A drive motor that drives the sprockets to rotate is provided on the frame. The chain has lifting plates that are perpendicular to its surface and are spaced apart along its length. The lifting plates have drainage holes. The chain of the elevator includes a lifting section and a horizontal section, and the conveying end of the horizontal section corresponds to the discharge port.

[0013] Optionally, the top of the pickling tank has a sealing plate, and a cover plate is provided at the feed inlet of the vertical section. Two cover plates are symmetrically arranged. The side of the cover plate away from the center of the feed inlet is hinged to the inner wall of the vertical section, and a reset torsion spring is provided at the hinge to drive it to flip to the horizontal.

[0014] Optionally, a baffle plate is provided at the outlet of the pickling tank, the top of the baffle plate is hinged to the pickling tank, and the baffle plate closes the outlet.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. The steel pipe enters the vertical section of the guide rail through the feed port, then passes through the inclined section and is finally lifted to the discharge port by the elevator. During this process, steel pipes can be continuously loaded from the feed port. The steel pipes are pickled in the pickling tank while rolling, which can effectively achieve continuous pickling of large batches of steel pipes with high pickling efficiency.

[0017] 2. As the steel pipe rolls down the inclined section, it drives the deceleration block to move down and retract. During this process, the linkage rod moves down simultaneously, which in turn drives the stirring impeller and the air nozzle to work. This simultaneously agitates the pickling solution in the pickling tank, improves the uniformity of the pickling solution for better pickling, and blows the pickling solution adhering to the steel pipe at the outlet back into the pickling tank, thus drying the steel pipe and reducing the waste of pickling solution.

[0018] 3. The inlet and outlet only open when the steel pipe passes through, and are normally in an automatic closed state, effectively preventing the odor of the pickling solution in the pickling tank from spreading and affecting the external environment and the health of the staff, making it safer and more environmentally friendly to use. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of an embodiment of this application.

[0020] Figure 2 This is a schematic diagram showing the corresponding positions of the lifting part and the horizontal part in an embodiment of this application.

[0021] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Pickling tank; 2. Vertical section; 3. Inclined section; 4. Inlet; 5. Outlet; 6. Elevator; 7. Speed ​​reducer; 8. Linkage rod; 9. Cylinder; 10. Compression chamber; 11. Piston; 12. Spring; 13. Connecting pipe; 14. Air nozzle; 15. Agitator impeller; 16. Rack; 17. Frame; 18. Sprocket; 19. Chain; 20. Lifting section; 21. Horizontal section; 22. Lifting plate; 23. Cover plate; 24. Buffer block; 25. Baffle plate; 26. Support plate; 27. Steel pipe; 28. Sealing plate. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0025] This application discloses an energy-saving and environmentally friendly steel pipe pickling equipment.

[0026] like Figure 1As shown, an energy-saving and environmentally friendly steel pipe pickling equipment includes a pickling tank 1 containing a pickling solution for pickling steel pipes 27. A track for guiding the steel pipes 27 is provided inside the pickling tank 1. The track includes a vertical section 2 and an inclined section 3. The vertical section 2 is located on the left side of the pickling tank 1, and its top forms an inlet 4 for the steel pipes 27 to enter. An outlet 5 is provided on the side of the pickling tank 1 away from the inlet 4. The bottom end of the vertical section 2 is connected to one end of the inclined section 3. A hoist 6 is provided at the lower end of the inclined section 3 of the pickling tank 1. The hoist 6 is used to lift the steel pipes 27 upwards. The steel pipes are lifted to the discharge port 5 for output. The interior of the vertical section 2 and the inclined section 3 are connected to the pickling tank 1, meaning that the pickling solution in the pickling tank 1 enters the vertical section 2 and the inclined section 3. In this way, a large number of steel pipes 27 enter the vertical section 2 one by one from the feed port 4, and then roll down the inclined section 3 under their own weight to the elevator 6. The steel pipes 27 complete the pickling process while rolling in the vertical section 2 and the inclined section 3. Finally, they are lifted to the discharge port 5 by the elevator 6 for output. This method can achieve pickling of a large number of steel pipes 27 in a good and continuous manner with high pickling efficiency.

[0027] like Figure 1 As shown, a deceleration block 7 is vertically slidably connected to the bottom wall of the inclined section 3. The top part of the deceleration block 7 protrudes from the bottom wall of the inclined section 3, and the protruding part of the deceleration block 7 is hemispherical. A linkage rod 8 is connected to the bottom end of the deceleration block 7. At the same time, a cylinder 9 is provided at the bottom of the pickling tank 1 corresponding to the linkage rod 8. A piston 11 is vertically slidably connected inside the cylinder 9. The bottom end of the linkage rod 8 is connected to the piston 11. A reset component is provided inside the cylinder 9 to drive the top of the deceleration block 7 to reset after protruding from the bottom wall of the inclined section 3. In this example, the reset component is a spring 12. One end of the spring 12 is connected to the piston 11, and the other end is connected to the inner wall of the cylinder 9. A compression chamber 10 is formed between the piston 11 and the bottom wall of the cylinder 9. Three deceleration blocks 7 are spaced apart along the length of the inclined section 3. In this way, when the steel pipe 27 rolls down the inclined section 3, the deceleration by multiple deceleration blocks can effectively prevent the steel pipe 27 from rolling onto the hoist 6 at too high a speed and causing a violent impact, thus playing a certain protective role for the hoist 6 and the steel pipe 27.

[0028] like Figure 1As shown, a connecting pipe 13 communicating with the compression chamber 10 is provided at the bottom of the cylinder 9. At the same time, an air nozzle 14 is provided near the discharge port 5 of the pickling tank 1. The end of the connecting pipe 13 away from the cylinder 9 is connected to the air nozzle 14. The air nozzle 14 is directed toward the steel pipe 27 that is being transported to the discharge port 5. In this way, when the linkage rod 8 moves down to compress the compression chamber 10, the air nozzle 14 can blow air toward the steel pipe 27, thereby blowing off the pickling liquid adhering to the surface of the steel pipe 27. This can partially dry the pickled steel pipe 27 and effectively reduce the waste of pickling liquid. No other air source is required to blow air onto the steel pipe 27, thus achieving the corresponding energy-saving purpose.

[0029] like Figure 1 As shown, an agitator impeller 15 is also installed inside the pickling tank 1. The agitator impeller 15 is arranged in a one-to-one correspondence with the linkage rod 8. The agitator impeller 15 is rotatably connected inside the pickling tank 1. A transmission assembly is provided between the agitator impeller 15 and the linkage rod 8 to drive the two. The transmission assembly includes a gear and a rack 16. The rack 16 is vertically arranged and fixed on the linkage rod 8. The agitator impeller 15 has a uniform central rotating shaft. The gear is fixed on the central rotating shaft of the agitator impeller 15 and meshes with the rack 16. In this way, every time the linkage rod 8 moves vertically, it can drive the agitator impeller 15 to rotate, thereby agitating the pickling solution. This makes the pickling solution for pickling the steel pipe 27 more uniform. The rotation of the agitator blade can be achieved without an additional drive source, further achieving the effect of energy saving.

[0030] like Figure 1 and Figure 2 As shown, the elevator 6 includes a frame 17, sprockets 18, and chains 19. The sprockets 18 are rotatably connected to the frame 17, and all sprockets 18 are connected by chains 19. In this embodiment, the chain 19 includes a lifting section 20 and a horizontal section 21. The bottom end of the lifting section 20 is located near the bottom end of the inclined section 3, and the top height of the lifting section 20 is the same as the discharge point. The height of the horizontal section 21 is the same as the top height of the lifting section 20. Two sets of chains 19 are spaced apart and located on the symmetrical sides of the lifting section 20. Lifting plates are protruding from the chains 19 of the lifting section 20 and are perpendicular to their surfaces. 22. Lifting plates 22 are spaced apart along the conveying direction of chain 19. The lifting plates 22 are provided with through drainage holes. The steel pipe 27 rolling down from the inclined section 3 falls onto the chain 19 and is supported and lifted by the lifting plates 22. A drive motor is provided on the sprocket 18 to drive it to rotate. The rotation of the sprocket 18 drives the chain 19 to rotate, thereby lifting the steel pipe 27 towards the discharge port 5. After the steel pipe 27 is lifted to the top of the lifting part 20, the two ends of the steel pipe 27 in the length direction are respectively supported on the horizontal part 21. Under the action of the horizontal part 21, it continues to be conveyed horizontally towards the discharge port 5, and finally the steel pipe 27 is discharged.

[0031] like Figure 1 and Figure 3 As shown, since the pickling solution has a certain odor, in order to reduce the emission of the odor, a sealing plate 28 is installed at the top opening of the pickling tank 1 for sealing and blocking. At the same time, a cover plate 23 is installed at the feed inlet 4 to seal it. There are two symmetrically arranged cover plates 23. The cover plates 23 are hinged to the inner wall of the vertical section 2 on the side away from each other, and a return torsion spring is installed at the hinge. The return torsion spring drives the cover plate 23 to return to the horizontal state of sealing the feed inlet 4. In this way, when the steel pipe 27 is not feeding, the feed inlet 4 always remains closed. When feeding, the gravity of the steel pipe 27 automatically drives the cover plate 23 to flip open. The feeding is convenient and the emission of odor is effectively reduced, which reduces the impact of odor on the external environment and the health of the staff, making it safer and more environmentally friendly.

[0032] like Figure 1 and Figure 3 As shown, since the steel pipe 27 falls freely in the vertical section 2, it is prone to excessive speed. In this embodiment, a buffer block 24 is protruding from the inner wall of the vertical section 2. The buffer block 24 is hemispherical and protrudes from the inner wall of the vertical section 2. The buffer blocks 24 are alternately arranged on the two opposite side walls of the vertical section 2 along the length of the vertical section 2. The buffer block 24 and the inner wall of the vertical section 2 form a channel for the steel pipe 27 to fall through. This can effectively buffer and decelerate the steel pipe 27, so that the steel pipe 27 can fall stably and smoothly to the bottom of the vertical section 2. It plays a corresponding protective role for the steel pipe 27 and the inclined section 3. The buffer block 24 has elasticity and deformation capacity. In practice, the buffer block 24 can be made of rubber and hollow inside. The hollow inside is filled with gas to achieve the purpose of buffering and shock absorption. Moreover, the buffer block 24 has good deformation capacity. In other embodiments, the diversion part on the connecting pipe 13 can be compressed into the buffer block 24 to inflate it, so that the buffer block 24 always maintains a good working condition.

[0033] like Figure 1 As shown, a baffle plate 25 is provided at the discharge port 5 to seal it. The top of the baffle plate 25 is hinged to the inner wall of the discharge port 5. When the steel pipe 27 is horizontally conveyed to the discharge port 5, the baffle plate 25 can be pushed open to discharge the material. When there is no steel pipe 27 being discharged, the baffle plate 25 flips down and resets under its own gravity, keeping the discharge port 5 closed at all times, reducing the emission of pickling liquid odor, and making it more environmentally friendly. A receiving plate 26, which resembles a horizontal part 21, is protruding inside the pickling tank 1 corresponding to the discharge port 5. The setting of the receiving plate 26 can better guide the steel pipe 27 on the horizontal part 21 to the discharge port 5, preventing the steel pipe 27 from accidentally falling.

[0034] The working principle of this embodiment is as follows: The steel pipe 27 is put into the feed port 4. After the steel pipe 27 pushes open the cover plate 23 and enters the vertical section 2, the cover plate 23 resets and closes the feed port 4. After the steel pipe 27 is buffered and decelerated by the buffer block 24, it falls to the inclined section 3. The steel pipe 27 rolls downward under its own gravity. During the rolling, it is decelerated by the deceleration block 7. During this period, the deceleration block is pushed down by the steel pipe 27. The compression chamber 10 in the cylinder 9 compresses the air nozzle 14 to blow out gas to blow off the pickling liquid on the steel pipe 27 at the discharge port 5. At the same time, the vertical movement of the linkage rod 8 drives the stirring impeller 15 to rotate. After the steel pipe 27 rolls to the bottom of the inclined section 3, it falls onto the lifting plate 22 of the elevator 6. Then, under the action of the elevator 6, it is lifted to the horizontal section 21. Finally, under the action of the horizontal section 21, it is horizontally transported to the discharge port 5 for discharge, thus realizing the pickling of each steel pipe 27.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An energy-saving and environment-friendly type steel pipe pickling equipment comprising a pickling tank (1), characterized in that: The acid pickling tank (1) is provided with a track for supporting the conveying steel pipe, the track comprises a vertical section (2) and an inclined section (3), the vertical section (2) is arranged at one side of the acid pickling tank (1) and the top end forms a feeding port (4), the other side of the acid pickling tank (1) is provided with a discharging port (5), the high end of the inclined section (3) is connected with the bottom end of the vertical section (2), the low end of the inclined section (3) is provided with a lifting machine (6) in the acid pickling tank (1) for lifting the steel pipe (27) to the discharging port (5), the bottom wall of the inclined section (3) is vertically and slidably connected with a deceleration block (7), the part of the deceleration block (7) protruding from the bottom wall of the inclined section (3) is an arc surface, the deceleration block (7) is provided with a reset member for driving the top end of the deceleration block (7) to protrude from the bottom wall of the inclined section (3), the acid pickling tank (1) is rotatably connected with a stirring impeller (15), the deceleration block (7) extends with a linkage rod (8), the linkage rod (8) and the stirring impeller (15) are provided with a transmission assembly for driving both, the linkage rod (8) vertically moves to drive the stirring impeller (15) to rotate; the transmission assembly comprises a gear and a rack (16), the rack (16) is fixed on the linkage rod (8), the gear is fixed on the stirring impeller (15), and the gear is engaged with the rack (16); the acid pickling tank (1) is further provided with a cylinder body (9), the cylinder body (9) is vertically and slidably connected with a piston (11), the piston (11) is connected with the bottom end of the linkage rod (8), a compression chamber (10) is formed between the piston (11) and the bottom wall of the cylinder body (9), the reset member is a spring (12) and is located in the compression chamber (10), one end of the reset member is connected with the piston (11), and the other end is connected with the bottom wall of the cylinder body (9), the cylinder body (9) is provided with a connecting pipe (13) in communication with the compression chamber (10), one end of the connecting pipe (13) is connected with the cylinder body (9), and the other end is connected to the discharging port (5) and is provided with a blowing nozzle (14) at the end.

2. The energy-saving and environment-friendly steel pipe pickling equipment according to claim 1, characterized in that: The deceleration block (7) and the stirring impeller (15) are one-to-one corresponding and are arranged at intervals along the length direction of the inclined section (3).

3. The energy-saving and environment-friendly steel pipe pickling equipment according to claim 1, characterized in that: The inner wall of the vertical section (2) is protrudingly provided with a buffer block (24), the buffer blocks (24) are alternately and intervally arranged on the opposite two side walls of the vertical section (2), the buffer block (24) is hemispherical and has elasticity.

4. The energy-saving and environment-friendly steel pipe pickling equipment according to claim 1, characterized in that: The lifting machine (6) comprises a rack (17), a chain wheel (18) and a chain (19), the chain wheel (18) is rotatably connected with the rack (17), the chain (19) is connected with each chain wheel (18), the rack (17) is provided with a driving motor for driving the chain wheel (18) to rotate, the chain (19) is intervally provided with a lifting plate (22) perpendicular to the surface of the chain (19) along the length direction of the chain (19), the lifting plate (22) is provided with a water leakage hole, and the chain (19) of the lifting machine (6) comprises a lifting part (20) and a horizontal part (21), and the conveying end of the horizontal part (21) corresponds to the discharging port (5).

5. The energy-saving and environment-friendly steel pipe pickling equipment according to claim 1, characterized in that: The top of the pickling tank (1) has a closing plate, the feeding port (4) of the vertical section (2) is provided with a cover plate (23), two cover plates (23) are symmetrically arranged, the cover plate (23) is hinged to the inner wall of the vertical section (2) on the side away from the center of the feeding port (4) and a reset torsion spring is arranged at the hinge to drive the cover plate (23) to flip to the horizontal position.

6. The energy-saving and environment-friendly steel pipe pickling equipment according to claim 4, characterized in that: The pickling tank (1) is provided with a shielding plate (25) corresponding to the discharging port (5), the top of the shielding plate (25) is hinged to the pickling tank (1), and the shielding plate (25) closes the discharging port (5).

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