Corrosion-resistant coating impeller suitable for pump impeller for concentration and evaporation of waste acid

Abstract

The pump impeller comprises a left box body, a right box body and a connecting shell, the left box body and the right box body are arranged in a left-right attached mode, the connecting shell is fixed to the right side of the right box body in a threaded connection mode, a micro water pump is fixedly installed in an inner cavity of the connecting shell, and the micro water pump is connected with the left box body in a threaded connection mode. A micro water pump is arranged in the right box body, a driving shaft is fixedly connected to an outlet of the micro water pump, a round hole is formed in the right side of the right box body, and the left end of the driving shaft penetrates through the round hole, extends to an inner cavity of the right box body and is fixedly connected with a connecting shaft. A layer of ceramic membrane is formed on the surface of the impeller, the effect of protecting the impeller is achieved, the service life of the impeller is prolonged, the spraying thickness can be increased, the service life is further prolonged, and therefore the service life of the forced circulation pump of the waste acid concentration system is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of waste acid treatment, in particular to a corrosion-resistant coating impeller for a pump impeller suitable for waste acid concentration evaporation. Background Technique

[0002] A water pump is a machine that transports liquids or increases the pressure of liquids. It transmits the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. It is mainly used to transport liquids including water, oil, acid-base liquids, emulsions, suspension liquids, and liquid metals, etc. It can also transport liquid-gas mixtures and liquids containing suspended solids.

[0003] The working medium of the forced circulation pump used in the waste acid concentration evaporation system is mostly high-temperature acid and contains a large amount of solid particles. There are relatively high requirements for the corrosion resistance and erosion resistance of the pump body impeller. Currently, most known materials such as alloy pumps and high-silicon cast iron are used. The service life of the pump body impeller is relatively short. After 3 to 4 months, it basically no longer meets the production requirements and must be replaced. However, the existing pump impellers have the disadvantage of being inconvenient to disassemble and assemble, increasing the operation difficulty of the staff, and thus reducing the use effect of the circulation pump. Content of the Utility Model

[0004] One of the purposes of the utility model is achieved by adopting the following technical scheme:

[0005] A corrosion-resistant coating impeller for a pump impeller suitable for waste acid concentration evaporation includes a left box body, a right box body, and a connecting shell. The left box body and the right box body are arranged in a left-right fitting manner, and the connecting shell is screwed and fixed on the right side of the right box body. A micro water pump is fixedly installed in the inner cavity of the connecting shell, and a driving shaft is fixedly connected to the outlet of the micro water pump. A round hole is opened on the right side of the right box body, and the left end of the driving shaft penetrates through the round hole, extends into the inner cavity of the right box body, and is fixedly connected to a connecting shaft. A rotating rod is movably connected to the left side of the connecting shaft, and a buckling mechanism is arranged between the rotating rod and the connecting shaft. A plurality of rotating impellers are fixedly connected to the outer wall of the rotating rod. A water outlet pipe is inserted and fixed on the left side of the left box body, and a water inlet pipe is inserted and fixed on the top of the left box body. A clamping mechanism is arranged between the left box body and the right box body.

[0006] Furthermore, the snap connection mechanism includes a circular plate, and the circular plate is fixedly connected to the right end of the rotating rod. The right side of the circular plate is in contact with the connecting shaft. A square groove is formed at the center of the left side of the connecting shaft, and a square block adapted to it is inserted into the inner cavity of the square groove. The left side of the square block is fixedly connected to the circular plate. Limiting square rods are respectively arranged in contact with the top and bottom of the left side of the circular plate. The top and bottom of the inner cavity of the right box body are both fixedly connected with hollow cylinders, and a movable block is slidably connected to the inner cavity of the hollow cylinder. Square holes adapted to the limiting square rods are respectively formed in the adjacent sides of the two hollow cylinders. The far ends of the two limiting square rods respectively penetrate through the adjacent square holes and are respectively fixedly connected to the adjacent movable blocks. First through holes are respectively formed in the far sides of the two hollow cylinders, and a pull rod is slidably connected to the inner cavity of the first through hole. Second through holes are respectively formed in the top and bottom of the right box body. The adjacent ends of the two pull rods are respectively fixedly connected to the adjacent movable blocks, and the far ends of the two pull rods respectively penetrate through the inner cavities of the adjacent second through holes and are both fixedly connected with pull rings. First springs are sleeved on the outer walls of the two pull rods, and the two ends of the first spring are respectively fixedly connected to the movable block and the inner wall of the hollow cylinder.

[0007] Furthermore, the clamping mechanism includes a sealing ring, and the sealing ring is sleeved at the joint gap between the left box body and the right box body. U-shaped pressing plates are respectively sleeved in contact with the top and bottom outer walls of the sealing ring. First slots are respectively formed in the top and bottom of the left box body and the right box body, and a first plug board adapted to it is slidably connected to the inner cavity of the first slot. One side of the first plug board is respectively fixedly connected to the adjacent U-shaped pressing plate. Second slots are formed in all four U-shaped pressing plates, and the same second plug board is slidably connected to the inner cavities of the two horizontally adjacent second slots. Third slots are respectively formed in the left box body near the top and bottom. The left sides of the two second plug boards respectively penetrate through the inner cavities of the adjacent third slots and are fixedly connected with fixing rings. Fixing holes are formed in both second plug boards. Third through holes are respectively formed in the left box body near the top and bottom on the left side, and a T-shaped rod is slidably connected to the inner cavity of the third through hole. The adjacent ends of the two T-shaped rods respectively penetrate through the inner cavities of the adjacent fixing holes. Second springs are sleeved on the outer walls of the two T-shaped rods, and the two ends of the second spring are respectively fixedly connected to the outer wall of the left box body and the T-shaped rod.

[0008] Furthermore, an annular isolation piece is sleeved on the outer wall of the driving shaft, and the annular isolation piece is in contact with the right side wall of the right box body.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] 1. By spraying the pump impeller with a cermet composite material, a ceramic film is formed on the impeller surface to protect the impeller, extending the service life of the impeller. The spraying thickness can be increased to further extend the service life, which is beneficial to extending the service life of the forced circulation pump in the waste acid concentration system.

[0011] 2. Through the settings of the sealing ring, U-shaped pressing plate, first plug board, second plug board, fixing ring, T-shaped rod and second spring, the T-shaped rod can be pulled to overcome the resistance of the second spring and be withdrawn from the inner cavity of the fixing hole. Then, the fixing ring is pulled to move horizontally to the left, and the second plug board is withdrawn from the two second slots. Subsequently, when the U-shaped pressing plate is pulled away from the sealing ring, the two first plug boards can be withdrawn from the inner cavity of the adjacent first slots, so that the left box body and the right box body can be disassembled. Then, when the two pull rings are pulled away from the right box body, the two limiting square rods can be pulled away from the round plate against the resistance of the first spring. Thus, when the rotating rod is pulled to move to the left, the square block can be withdrawn from the inner cavity of the square slot, improving the convenience of disassembling and assembling the impeller, and reducing the operation difficulty for the staff to disassemble and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the front view structural schematic diagram of this embodiment;

[0013] Figure 2 is the left view structural schematic diagram of the left box body of this embodiment;

[0014] Figure 3 is Figure 1 the enlarged structural view at A in

[0015] Figure 4 is Figure 1 the enlarged structural view at B in

[0016] In the figure: 1. Left box body; 2. Right box body; 3. Connecting shell; 4. Micro water pump; 5. Driving shaft; 6. Connecting shaft; 7. Square slot; 8. Square block; 9. Round plate; 10. Rotating rod; 11. Impeller; 12. Limiting square rod; 13. Hollow cylinder; 14. Movable block; 15. Pull ring; 16. First spring; 17. Water inlet pipe; 18. Water outlet pipe; 19. Sealing ring; 20. U-shaped pressing plate; 21. Annular isolation sheet; 22. First plug board; 23. Second plug board; 24. Fixing ring; 25. T-shaped rod; 26. Second spring; 27. Pull rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Please refer to Figures 1 to 4 , the present utility model provides the following technical solutions:

[0018] An impeller with a corrosion-resistant coating suitable for a waste acid concentration evaporation pump, comprising a left box body 1, a right box body 2 and a connecting shell 3. The left box body 1 and the right box body 2 are arranged in a left-right fitting manner, and the connecting shell 3 is screwed and fixed on the right side of the right box body 2. A micro water pump 4 is fixedly installed in the inner cavity of the connecting shell 3, and a driving shaft 5 is fixedly connected to the outlet of the micro water pump 4. A circular hole is opened on the right side of the right box body 2, and the left end of the driving shaft 5 penetrates through the circular hole, extends into the inner cavity of the right box body 2, and is fixedly connected to a connecting shaft 6. An annular isolation sheet 21 is sleeved on the outer wall of the driving shaft 5, and the annular isolation sheet 21 is in contact with the right side wall of the right box body 2. A rotating rod 10 is movably connected to the left side of the connecting shaft 6, and a buckling mechanism is arranged between the rotating rod 10 and the connecting shaft 6. A plurality of rotating impellers 11 are fixedly connected to the outer wall of the rotating rod 10. A water outlet pipe 18 is inserted and fixed on the left side of the left box body 1, and a water inlet pipe 17 is inserted and fixed on the top of the left box body 1. A clamping mechanism is arranged between the left box body 1 and the right box body 2.

[0019] The buckling mechanism includes a circular plate 9, and the circular plate 9 is fixedly connected to the right end of the rotating rod 10. The right side of the circular plate 9 is in contact with the connecting shaft 6. A square groove 7 is opened at the center of the left side of the connecting shaft 6, and a square block 8 adapted to it is inserted into the inner cavity of the square groove 7. The left side of the square block 8 is fixedly connected to the circular plate 9. Limiting square rods 12 are respectively arranged in contact with the top and bottom of the left side of the circular plate 9. Hollow cylinders 13 are fixedly connected to the top and bottom of the inner cavity of the right box body 2, and a movable block 14 is slidably connected to the inner cavity of the hollow cylinder 13. Square holes adapted to the limiting square rods 12 are opened on one adjacent side of the two hollow cylinders 13. The two ends of the two limiting square rods 12 away from each other respectively penetrate through the adjacent square holes and are respectively fixedly connected to the adjacent movable blocks 14. First through holes are opened on the sides of the two hollow cylinders 13 away from each other, and a pull rod 27 is slidably connected to the inner cavity of the first through hole. Second through holes are opened on the top and bottom of the right box body 2. The adjacent ends of the two pull rods 27 are respectively fixedly connected to the adjacent movable blocks 14, and the ends of the two pull rods 27 away from each other respectively penetrate through the inner cavities of the adjacent second through holes and are both fixedly connected to a pull ring 15. First springs 16 are sleeved on the outer walls of the two pull rods 27, and the two ends of the first spring 16 are respectively fixedly connected to the movable block 14 and the inner wall of the hollow cylinder 13.

[0020] The clamping mechanism includes a sealing ring 19, and the sealing ring 19 is sleeved at the joint gap between the left box body 1 and the right box body 2. The outer walls of the top and bottom of the sealing ring 19 are both sleeved with U-shaped pressing plates 20. The top and bottom of the left box body 1 and the right box body 2 are both provided with first slots, and the inner cavity of the first slot is slidably connected with a first plug board 22 adapted thereto. One side of the first plug board 22 is fixedly connected to the adjacent U-shaped pressing plate 20 respectively. Second slots are provided on all four U-shaped pressing plates 20, and the inner cavities of two laterally adjacent second slots are slidably connected with the same second plug board 23. Third slots are provided at the left side of the left box body 1 near the top and bottom. The left sides of the two second plug boards 23 respectively penetrate through the inner cavities of the adjacent third slots and are fixedly connected with fixing rings 24. Fixing holes are provided on both second plug boards 23. Third through holes are provided at the left side of the top and bottom of the left box body 1 near the left side, and the inner cavity of the third through hole is slidably connected with a T-shaped rod 25. The adjacent ends of the two T-shaped rods 25 respectively penetrate through the inner cavities of the adjacent fixing holes. Second springs 26 are sleeved on the outer walls of the two T-shaped rods 25, and the two ends of the second springs 26 are fixedly connected to the outer wall of the left box body 1 and the T-shaped rod 25 respectively.

[0021] Working principle: When in use, the impeller 11 of the pump body is sprayed with a metal-ceramic composite material, so that a ceramic film is formed on the surface of the impeller 11, which plays a role in protecting the impeller 11, enabling the service life of the impeller 11 to be extended. The spraying thickness can be increased to further extend the service life, thus being beneficial to extending the service life of the forced circulation pump of the waste acid concentration system. When the impeller 11 needs to be disassembled and replaced, the T-shaped rod 25 can be pulled to overcome the resistance of the second spring 26, and the T-shaped rod 25 can be pulled out from the inner cavity of the fixing hole. Then, the fixing ring 24 is pulled to move horizontally to the left, and the second plug board 23 is pulled out from the two second slots. Subsequently, when the U-shaped pressing plate 20 is pulled away from the sealing ring 19, the two first plug boards 22 can be pulled out from the inner cavities of the adjacent first slots, so that the left box body 1 and the right box body 2 can be disassembled. Then, when the two pull rings 15 are pulled away from the right box body 2, the two limit square rods 12 can be pulled away from the round plate 9 by overcoming the resistance of the first spring 16. Thus, when the rotating rod 10 is pulled to move to the left, the square block 8 can be pulled out from the inner cavity of the square groove 7, improving the convenience of disassembling and assembling the impeller 11, and thus reducing the operation difficulty for the staff to disassemble and replace.

Claims

1. An impeller with a corrosion-resistant coating for a pump impeller applicable to waste acid concentration evaporation, comprising a left box body (1), a right box body (2) and a connecting shell (3), characterized in that: The left box body (1) and the right box body (2) are arranged in a left-right fitting manner, and the connecting shell (3) is screwed and fixed on the right side of the right box body (2). A micro water pump (4) is fixedly installed in the inner cavity of the connecting shell (3), and a driving shaft (5) is fixedly connected to the outlet of the micro water pump (4). A circular hole is opened on the right side of the right box body (2), and the left end of the driving shaft (5) penetrates through the circular hole, extends into the inner cavity of the right box body (2), and is fixedly connected to a connecting shaft (6). A rotating rod (10) is movably connected to the left side of the connecting shaft (6), and a buckling mechanism is arranged between the rotating rod (10) and the connecting shaft (6). A plurality of rotating impellers (11) are fixedly connected to the outer wall of the rotating rod (10). A water outlet pipe (18) is inserted and fixed on the left side of the left box body (1), and a water inlet pipe (17) is inserted and fixed on the top of the left box body (1). A clamping mechanism is arranged between the left box body (1) and the right box body (2).

2. The corrosion-resistant coating impeller of a pump impeller applicable to waste acid concentration evaporation as described in claim 1, wherein: The buckling mechanism includes a circular plate (9), and the circular plate (9) is fixedly connected to the right end of the rotating rod (10). The right side of the circular plate (9) is in contact with the connecting shaft (6). A square groove (7) is opened at the center of the left side of the connecting shaft (6), and a square block (8) adapted to it is inserted into the inner cavity of the square groove (7). The left side of the square block (8) is fixedly connected to the circular plate (9). Limiting square rods (12) are respectively arranged in contact with the top and bottom of the left side of the circular plate (9). Hollow cylinders (13) are fixedly connected to the top and bottom of the inner cavity of the right box body (2), and movable blocks (14) are slidably connected to the inner cavities of the hollow cylinders (13). Square holes adapted to the limiting square rods (12) are opened on the adjacent sides of the two hollow cylinders (13). The far ends of the two limiting square rods (12) respectively penetrate through the adjacent square holes and are respectively fixedly connected to the adjacent movable blocks (14). First through holes are opened on the far sides of the two hollow cylinders (13), and pull rods (27) are slidably connected to the inner cavities of the first through holes. Second through holes are opened on the top and bottom of the right box body (2). The adjacent ends of the two pull rods (27) are respectively fixedly connected to the adjacent movable blocks (14), and the far ends of the two pull rods (27) respectively penetrate through the inner cavities of the adjacent second through holes and are both fixedly connected to pull rings (15). First springs (16) are sleeved on the outer walls of the two pull rods (27), and the two ends of the first springs (16) are respectively fixedly connected to the movable blocks (14) and the inner walls of the hollow cylinders (13).

3. The corrosion-resistant coating impeller of a pump impeller applicable to waste acid concentration evaporation according to claim 1, wherein: The clamping mechanism includes a sealing ring (19), and the sealing ring (19) is sleeved at the joint gap between the left box body (1) and the right box body (2). U-shaped pressing plates (20) are sleeved on the outer walls of the top and bottom of the sealing ring (19). First slots are opened at the top and bottom of the left box body (1) and the right box body (2), and first inserting plates (22) adapted to the first slots are slidably connected in the inner cavities of the first slots. One side of each first inserting plate (22) is fixedly connected to the adjacent U-shaped pressing plate (20). Second slots are opened on all four U-shaped pressing plates (20), and the inner cavities of two laterally adjacent second slots are slidably connected with the same second inserting plate (23). Third slots are opened at the top and bottom near the left side of the left box body (1). The left sides of the two second inserting plates (23) respectively penetrate through the inner cavities of the adjacent third slots and are fixedly connected with fixing rings (24). Fixing holes are opened on both second inserting plates (23). Third through holes are opened at the top and bottom near the left side of the left box body (1), and T-shaped rods (25) are slidably connected in the inner cavities of the third through holes. The adjacent ends of the two T-shaped rods (25) respectively penetrate through the inner cavities of the adjacent fixing holes. Second springs (26) are sleeved on the outer walls of the two T-shaped rods (25), and the two ends of each second spring (26) are fixedly connected to the outer wall of the left box body (1) and the T-shaped rod (25).

4. The corrosion-resistant coating impeller for a pump impeller applicable to waste acid concentration evaporation according to claim 1, wherein: An annular isolation sheet (21) is sleeved on the outer wall of the driving shaft (5), and the annular isolation sheet (21) is arranged in contact with the right side wall of the right box body (2).

Images