A self-washing lime slurry delivery pump

Abstract

This utility model relates to the field of lime slurry conveying pump technology, and discloses a self-washing lime slurry conveying pump, including a pump body with an inlet pipe and an outlet pipe connected to it. An air supply pipe is provided on the outer surface of the inlet pipe, and a fixing box is fixedly connected to the outer surface of the inlet pipe. By integrating filtration, air supply, stirring, and backwashing structures into the conveying pump, the functions of lime slurry conveying and cleaning are integrated. On the one hand, the large-particle filter plate can effectively intercept impurities before the lime slurry enters the pump body, reducing the risk of clogging. On the other hand, the air supply pipe introduces air bubbles, which, combined with the mechanical disturbance of the stirring column, effectively prevents slurry deposition and improves mixing uniformity. Simultaneously, the spiral nozzle on the outlet pipe enables intermittent backwashing, automatically flushing the pump chamber and stirring components, significantly reducing the frequency of manual cleaning. The overall structure works synergistically, improving conveying efficiency, cleaning capability, and the continuity and reliability of equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of lime slurry conveying pump technology, specifically a self-washing lime slurry conveying pump. Background Technology

[0002] Lime slurry is a slurry liquid widely used in water treatment, desulfurization and chemical industries. During transportation, it often faces problems such as clogging, sedimentation and difficulty in cleaning equipment due to the large number of solid particles it contains.

[0003] Traditional lime slurry pumps mostly only have basic conveying functions and lack effective filtration and cleaning mechanisms, which makes it easy for large particles of impurities to accumulate in the pump chamber, reducing system operating efficiency and increasing the frequency of manual maintenance. Most existing equipment does not have automatic backwashing cleaning function, and cannot complete effective cleaning without stopping the machine, which seriously restricts the continuity and reliability of the system.

[0004] Therefore, it is necessary to design a self-washing lime slurry delivery pump to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a self-washing lime slurry conveying pump to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-washing lime slurry conveying pump, comprising a pump body, an inlet pipe and an outlet pipe connected to the pump body, an air supply pipe formed on the outer surface of the inlet pipe, a fixed box fixedly connected to the outer surface of the inlet pipe, a sliding plate fixedly connected inside the fixed box, a pull block fixedly connected to the top of the sliding plate, multiple springs fixedly connected between the top two sides of the sliding plate and the top of the inner cavity of the fixed box, two inserts fixedly connected to the bottom of the sliding plate, and a limit switch fixedly connected to the inner cavity of the inlet pipe. The feed pipe has a large particle filter plate that is slidably installed inside, and two large particle filter plates are slidably inserted into the top of the large particle filter plate. The outer surface of the discharge pipe is connected to multiple backflushing pipes, and each of the multiple backflushing pipes is fixedly connected to a spiral nozzle. The inner cavity of the discharge pipe is fixedly connected to two symmetrical limiting plates, and a device box is fixedly connected between the two limiting plates. The device box is equipped with a rotating mechanism, and a stirring column is fixedly connected to the rotating mechanism. The stirring column is rotatably positioned between the bottom end of the discharge pipe and the multiple spiral nozzles.

[0007] Preferably, the rotating mechanism includes a fixed block, which is fixed to the outer surface of the discharge pipe, and a servo motor is fixed to the outer surface of the fixed block. The output shaft of the servo motor is fixed to a first rotating shaft. A support plate is fixed inside the equipment box, and a second rotating shaft is rotatably connected to the top of the support plate. Both the outer surfaces of the second rotating shaft and the first rotating shaft are fixedly fitted with bevel gears, and the two bevel gears mesh with each other. The stirring column is fixed to one end of the second rotating shaft that passes through the outside of the equipment box.

[0008] Preferably, one end of the feed pipe is provided with a groove, and a sealing ring is fixedly connected inside the groove. The outer surface of the large particle filter plate is in contact with the inner wall of the sealing ring, and one side of the large particle filter plate is in contact with one side of the limiting piece.

[0009] Preferably, the sliding plate is square in shape, and the outer surface of the sliding plate is in contact with the inner wall of the fixing box, and the sliding plate is slidably disposed inside the fixing box.

[0010] Preferably, the air supply pipe is located between one end of the feed pipe on the side of the discharge pipe and the large particle filter plate, and the pull block has an anti-slip groove at one end outside the fixed box.

[0011] Preferably, the stirring column is rotatably disposed inside the discharge pipe, and the length of the stirring column is equal to one-third of the inner diameter of the discharge pipe.

[0012] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0013] This invention integrates filtration, air supply, stirring, and backwashing structures into a single conveying pump, achieving integrated lime slurry conveying and cleaning functions. On one hand, the large-particle filter plate effectively intercepts impurities before the lime slurry enters the pump body, reducing the risk of clogging. On the other hand, the air supply pipe introduces air bubbles, which, combined with the mechanical agitation of the stirring column, effectively prevent slurry sedimentation and improve mixing uniformity. Simultaneously, the spiral nozzles on the discharge pipe provide intermittent backwashing, automatically flushing the pump chamber and stirring components, significantly reducing the frequency of manual cleaning. The coordinated operation of the entire structure enhances conveying efficiency, cleaning capability, and the continuity and reliability of equipment operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the discharge pipe structure of this utility model;

[0016] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0017] In the diagram: 1. Pump body; 2. Feed pipe; 3. Discharge pipe; 4. Backflush pipe; 5. Spiral nozzle; 6. Air supply pipe; 7. Pull block; 8. Fixing box; 9. Spring; 10. Sliding plate; 11. Insert column; 12. Large particle filter plate; 13. Limiting plate; 14. Fixing block; 15. Servo motor; 16. Bevel gear; 17. First rotating shaft; 18. Second rotating shaft; 19. Stirring column; 20. Equipment box; 21. Support plate; 22. Sealing ring. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Obviously, many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Please see Figure 1-3This utility model provides a self-washing lime slurry conveying pump, including a pump body 1. An inlet pipe 2 and an outlet pipe 3 are connected to the pump body 1. An air supply pipe 6 is provided on the outer surface of the inlet pipe 2, and a fixing box 8 is fixedly connected to the outer surface of the inlet pipe 2. A sliding plate 10 is fixedly connected inside the fixing box 8, and a pull block 7 is fixedly connected to the top of the sliding plate 10. Multiple springs 9 are fixedly connected between the top two sides of the sliding plate 10 and the top of the inner cavity of the fixing box 8. Two inserts 11 are fixedly connected to the bottom of the sliding plate 10. A limiting piece 13 is fixedly connected to the inner cavity of the inlet pipe 2. A large particle filter plate 12 is slidably installed, and two of the large particle filter plates 12 are slidably inserted into the top of the large particle filter plate 12. Multiple backflushing pipes 4 are connected to the outer surface of the discharge pipe 3, and spiral nozzles 5 are fixedly connected to each of the multiple backflushing pipes 4. Two symmetrical limiting plates 13 are fixedly connected to the inner cavity of the discharge pipe 3, and an equipment box 20 is fixedly connected between the two limiting plates 13. A rotating mechanism is provided inside the equipment box 20, and a stirring column 19 is fixedly connected to the rotating mechanism. The stirring column 19 is rotatably positioned between the bottom end of the discharge pipe 3 and the multiple spiral nozzles 5. The pump body 1 is opened... The lime slurry is fed into the pump via the feed pipe 2 and discharged through the discharge pipe 3. During the feeding process, the elastic sliding of the pull block 7 allows the two inserts 11 to slide into the large particle filter plate 12 placed on one side of the limiting plate 13, fixing the large particle filter plate 12 and strengthening the seal with the sealing ring 22. This pre-filters large particle impurities that may be generated in the lime slurry during transportation, avoiding difficulties in cleaning the entire pump body 1 later. At the same time, air is introduced into the conveyed lime slurry through the air supply pipe 6, generating bubbles in the lime slurry. These bubbles continuously agitate the slurry, reducing solid particle deposition, preventing blockage, and improving the flow rate. The high fluidity and mixing effect of the slurry, and the internal structure of the output pipe 3, are connected to the clean water pipe through multiple backwash pipes 4, thereby intermittent backwashing through multiple spiral nozzles 5, using clean water spray to flush the pump chamber and the stirring column 19, enhancing the cleaning effect. At the same time, the servo motor 15 is turned on, and the rotation of the stirring column 19 is used to stir the lime slurry inside the output pipe 3, thereby generating mechanical disturbance, peeling off the attached particles, and combined with bubble disturbance, a stronger mixing and flushing effect can be formed. Through the coordinated work of multiple structures, the pump body 1 can have the function of automatic cleaning when transporting lime slurry.

[0021] To facilitate the rotation of the stirring column 19 inside the discharge pipe 3, the rotating mechanism includes a fixing block 14, which is fixed to the outer surface of the discharge pipe 3. A servo motor 15 is fixed to the outer surface of the fixing block 14. The output shaft of the servo motor 15 is fixed to a first rotating shaft 17. A support plate 21 is fixed inside the equipment box 20, and a second rotating shaft 18 is rotatably connected to the top of the support plate 21. Both the outer surfaces of the second rotating shaft 18 and the first rotating shaft 17 are fixedly fitted with bevel gears 16, and the two bevel gears 16 mesh with each other. The stirring column 19 is fixed to one end of the second rotating shaft 18 that passes through the outside of the equipment box 20.

[0022] Furthermore, in order to improve the sealing performance of the feed pipe 2 after the large particle filter plate 12 is installed, a groove is provided at one end of the feed pipe 2, and a sealing ring 22 is fixedly connected inside the groove. The outer surface of the large particle filter plate 12 is in contact with the inner wall of the sealing ring 22, and one side of the large particle filter plate 12 is in contact with one side of the limiting piece 13.

[0023] Furthermore, in order to improve the smoothness of pulling the pull block 7, the sliding plate 10 is square in shape, and the outer surface of the sliding plate 10 is in contact with the inner wall of the fixed box 8, and the sliding plate 10 is slidably disposed inside the fixed box 8.

[0024] In order to generate bubbles by supplying gas to the lime slurry during transportation, the gas supply pipe 6 is located between one end of the feed pipe 2 on the side of the discharge pipe 3 and the large particle filter plate 12, and the pull block 7 is provided with an anti-slip groove at one end outside the fixed box 8.

[0025] In order to better stir the lime slurry inside the discharge pipe 3, and to combine with the bubble disturbance to form a stronger mixing and flushing effect, the stirring column 19 is rotatably set inside the discharge pipe 3, and the length of the stirring column 19 is equal to one-third of the inner diameter of the discharge pipe 3.

[0026] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0028] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A self-cleaning lime milk delivery pump comprising a pump body (1), characterized in that: The pump body (1) is connected to an inlet pipe (2) and an outlet pipe (3). An air supply pipe (6) is provided on the outer surface of the inlet pipe (2). A fixed box (8) is fixed to the outer surface of the inlet pipe (2). A sliding plate (10) is fixed inside the fixed box (8). A pull block (7) is fixed to the top of the sliding plate (10). Multiple springs (9) are fixed between the top two sides of the sliding plate (10) and the top of the inner cavity of the fixed box (8). Two inserts (11) are fixed to the bottom of the sliding plate (10). A limit plate (13) is fixed to the inner cavity of the inlet pipe (2). A large particle is slidably arranged inside the inlet pipe (2). The large particle filter plate (12) is slidably inserted into the top of the large particle filter plate (12). The outer surface of the discharge pipe (3) is connected to multiple backflushing pipes (4), and each of the multiple backflushing pipes (4) is fixedly connected to a spiral nozzle (5). The inner cavity of the discharge pipe (3) is fixedly connected to two symmetrical limiting plates (13), and a device box (20) is fixedly connected between the two limiting plates (13). A rotating mechanism is provided inside the device box (20), and a stirring column (19) is fixedly connected to the rotating mechanism. The stirring column (19) is rotatably positioned between the bottom end of the discharge pipe (3) and the multiple spiral nozzles (5).

2. The self-washing lime slurry conveying pump according to claim 1, characterized in that: The rotating mechanism includes a fixed block (14), which is fixed to the outer surface of the discharge pipe (3). A servo motor (15) is fixed to the outer surface of the fixed block (14). The output shaft of the servo motor (15) is fixed to a first rotating shaft (17). A support plate (21) is fixed inside the equipment box (20). A second rotating shaft (18) is rotatably connected to the top of the support plate (21). Both the outer surfaces of the second rotating shaft (18) and the first rotating shaft (17) are fixedly fitted with bevel gears (16). The two bevel gears (16) mesh with each other. The stirring column (19) is fixed to one end of the second rotating shaft (18) that passes through the outside of the equipment box (20).

3. A self-cleaning milk of lime transfer pump as defined in claim 1, wherein: One end of the feed pipe (2) is provided with a groove, and a sealing ring (22) is fixed inside the groove. The outer surface of the large particle filter plate (12) is in contact with the inner wall of the sealing ring (22), and one side of the large particle filter plate (12) is in contact with one side of the limiting piece (13).

4. A self-cleaning milk of lime transfer pump as defined in claim 1, wherein: The sliding plate (10) is square in shape, and the outer surface of the sliding plate (10) is in contact with the inner wall of the fixed box (8), and the sliding plate (10) is slidably disposed inside the fixed box (8).

5. A self-cleaning milk of lime transfer pump as defined in claim 1, wherein: The air supply pipe (6) is located between one end of the feed pipe (2) on the side of the discharge pipe (3) and the large particle filter plate (12), and the pull block (7) is provided with an anti-slip groove at one end outside the fixed box (8).

6. A self-cleaning milk of lime transfer pump as defined in claim 1, wherein: The stirring column (19) is rotatably disposed inside the discharge pipe (3), and the length of the stirring column (19) is equal to one-third of the inner diameter of the discharge pipe (3).

Images