A spiral flow guide slurry pump anti-clogging structure

Abstract

This utility model discloses an anti-clogging structure for a spiral-guided slurry pump, including a conveying pipe with an anti-clogging mechanism. The anti-clogging mechanism includes bidirectional blades rotatably connected inside the conveying pipe. Multiple reinforcing rods are evenly spaced inside the bidirectional blades, and a conveying shaft is coaxially arranged inside the bidirectional blades. Unlike traditional unidirectional slurry pumps, this design adopts an innovative structure with central feeding and two-end discharge. By setting reverse spiral blades inside the conveying pipe, bidirectional diversion and conveying of raw materials are achieved. The core advantage of this design is that it establishes a natural load balancing mechanism. When the raw material enters the system from the middle, the bidirectional spiral blades evenly distribute the material to two directions, significantly reducing the load pressure on one side of the pipeline.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-clogging structure for slurry pumps, and more specifically, it relates to an anti-clogging structure for a spiral flow-guided slurry pump. Background Technology

[0002] In the industrial sector, slurry pumps, as key equipment for handling fluids containing solid particles, are widely used in various industries such as mining, power plant desulfurization, coal washing, and urban wastewater treatment. However, existing slurry pump designs generally suffer from a pressing technical problem: clogging during the feeding process. This is mainly due to their unidirectional spiral conveying structure design. Traditional slurry pump feeding systems typically use spiral blades or shafts rotating in one direction to push materials. While this mechanical structure is simple and has low manufacturing costs, it has inherent defects in actual operation. When slurry containing irregularly shaped solid particles, fibrous impurities, or agglomerates enters the pump body, these materials are easily compacted, entangled, or wedged into the narrow gap between the spiral blades and the pump wall. Since the spiral structure can only provide thrust in one direction, once the material begins to accumulate in a certain place, subsequent material will be continuously pushed to the same position, causing the local pressure to increase continuously, eventually forming a dense blockage layer that is difficult to clear. This phenomenon is particularly serious when treating fibrous materials such as papermaking waste pulp, flocculants from sewage treatment plants, or slurry containing long strip-shaped impurities, causing a significant decrease in equipment efficiency or even complete shutdown.

[0003] From the perspective of long-term equipment operation, the clogging problem of slurry pumps exhibits a progressive deterioration characteristic, severely impacting the production system. In the initial stage, minor material accumulation may only cause a slight decrease in pump flow, which is often difficult for operators to detect. As operating time increases, the accumulated material gradually forms a hardened layer, which not only reduces the effective flow channel cross-sectional area but also alters the original smooth inner wall surface morphology, generating more turbulence and additional resistance, further reducing conveying efficiency. More seriously, this cumulative effect leads to a longer residence time of the material in the screw conveyor system, allowing the originally flowable material more time to undergo physicochemical changes such as sedimentation, crystallization, polymerization, or biodegradation, forming more difficult-to-treat blockages. When the blockage develops to a certain extent, the equipment often needs to be completely shut down for disassembly and cleaning, which not only brings high maintenance costs but also causes production line downtime losses. In continuous production processes, a sudden failure of a critical slurry pump may force the entire production line to shut down, triggering a chain reaction. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a spiral guide slurry pump anti-clogging structure to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a spiral guide slurry pump anti-clogging structure, including a conveying pipe, an anti-clogging mechanism on the conveying pipe, the anti-clogging mechanism including bidirectional blades, the bidirectional blades being rotatably connected inside the conveying pipe, multiple reinforcing rods being provided at equal intervals inside the bidirectional blades, and a conveying shaft being coaxially provided inside the bidirectional blades, a conveying motor being fixedly provided on the conveying pipe, the extended end of the conveying motor being connected to the conveying shaft, discharge ports being provided at both ends of the conveying pipe, the two discharge ports being respectively connected to an external pump body, and a feed box being provided in the middle of the conveying pipe.

[0008] The present invention is further configured such that a feed blade is rotatably provided inside the feed box, and the feed blade is attached to the inside of the feed box.

[0009] The present invention is further configured such that a feeding motor is provided on the side wall of the feeding box, and the extended end of the feeding motor is connected to the feeding blade.

[0010] The present invention is further configured such that two fixed pipes are provided at equal intervals on the side wall of the feeding box, and the two fixed pipes are respectively connected to the inside of the feeding box.

[0011] The present invention is further configured such that external connecting pipes are threaded onto the two fixed pipes respectively, and the two external connecting pipes are respectively connected to an external water inlet device.

[0012] The present invention is further configured such that guide frames are fixedly provided inside the outer tube and the fixed tube, and top rods are slidably provided on the two guide frames, and a one-way disc is provided on each top rod.

[0013] The present invention is further configured such that a one-way groove is provided on the fixed tube and the outer tube respectively, and the one-way disc abuts against the one-way groove.

[0014] The present invention is further configured such that each of the top rods is fitted with a spring, and the two ends of the spring abut against the one-way disc and the guide frame, respectively.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a spiral flow guide slurry pump anti-clogging structure, which has the following beneficial effects: Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an anti-clogging structure for a spiral flow guiding slurry pump according to the present invention.

[0018] Figure 2 This is a cross-sectional view of body 1 in this utility model;

[0019] Figure 3 This is a schematic diagram of the bidirectional blade in this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the inner and outer connecting pipes of this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the external connecting pipe and the fixed pipe in this utility model.

[0022] In the diagram: 1. Conveying pipe; 2. Bidirectional blade; 3. Reinforcing rod; 4. Conveying shaft; 5. Conveying motor; 6. Discharge port; 7. Feed box; 8. Feed blade; 9. Feeding motor; 10. Fixed pipe; 11. External pipe; 12. Guide frame; 13. Top rod; 14. One-way disc; 15. One-way groove; 16. Spring. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0026] Please see Figure 1-5A spiral guide slurry pump anti-clogging structure includes a conveying pipe 1, an anti-clogging mechanism on the conveying pipe 1, and a bidirectional blade 2 rotatably connected inside the conveying pipe 1. Multiple reinforcing rods 3 are evenly spaced inside the bidirectional blade 2, and a conveying shaft 4 is coaxially mounted inside the bidirectional blade 2. A conveying motor 5 is fixedly mounted on the conveying pipe 1, and the extended end of the conveying motor 5 is connected to the conveying shaft 4. Discharge ports 6 are located at both ends of the conveying pipe 1, and the two discharge ports 6 are respectively connected to an external pump body. A feed box 7 is located in the middle of the conveying pipe 1, and a feed blade 8 is rotatably mounted inside the feed box 7, fitting against the inside of the feed box 7. A feed motor 9 is located on the side wall of the feed box 7, and the extended end of the feed motor 9... The end is connected to the feed blade 8. Two fixed pipes 10 are equally spaced on the side wall of the feed box 7, and the two fixed pipes 10 are respectively connected to the inside of the feed box 7. The two fixed pipes 10 are respectively threaded with external pipes 11. The two external pipes 11 are respectively connected to the external water inlet equipment. Guide frames 12 are respectively fixed inside the external pipes 11 and the fixed pipes 10. The two guide frames 12 are respectively slidably equipped with push rods 13. Each push rod 13 is equipped with a one-way disc 14. One-way grooves 15 are respectively opened on the fixed pipes 10 and the external pipes 11. The one-way discs 14 abut against the one-way grooves 15. Each push rod 13 is respectively sleeved with a spring 16. The two ends of the spring 16 abut against the one-way disc 14 and the guide frame 12 respectively.

[0027] In this embodiment, when feeding is required, the raw material is first fed into the feed box 7, and then the feed motor 9 drives the feed blade 8 to rotate. By controlling the speed of the feed blade 8, a stable feeding speed can be ensured. Then, the raw material is fed into the conveying pipe 1. At this time, the conveying motor 5 drives the bidirectional blade 2 to rotate. Since the two ends of the bidirectional blade 2 are set in opposite directions, when conveying, the raw material entering from the middle will be divided into two bidirectional blades 2 and conveyed to the discharge ports 6 at both ends. When one discharge port 6 is blocked, the other discharge port 6 can continue to discharge, thus avoiding the blockage.

[0028] More specifically, when cleaning is required, since one-way discs 14 are installed between the fixed pipe 10 and the outer pipe 11 respectively, and the one-way discs 14 fit into the one-way groove 15, both ends are in a sealed state when not cleaning. When the outer pipe 11 is threadedly connected to the fixed pipe 10, the seal between the two one-way discs 14 is released when the two push rods 13 abut against each other, thereby connecting the water inlet for cleaning.

[0029] In summary, during the use or operation of the overall equipment: When feeding is required, the raw material is first input into the feed box 7, and then the feed motor 9 drives the feed blade 8 to rotate. By controlling the speed of the feed blade 8, a stable feeding speed can be ensured. Then, the raw material is fed into the conveying pipe 1. At this time, the conveying motor 5 drives the bidirectional blade 2 to rotate. Since the two ends of the bidirectional blade 2 are set in opposite directions, when conveying, the raw material entering from the middle will be divided into two bidirectional blades 2 and conveyed to the discharge ports 6 at both ends. When one discharge port 6 is blocked, the other discharge port 6 can continue to discharge, thus avoiding blockage. When cleaning is required, since one-way discs 14 are installed between the fixed pipe 10 and the outer pipe 11, and the one-way discs 14 are attached to the one-way groove 15, both ends are in a sealed state when not cleaning. When the outer pipe 11 is threadedly connected to the fixed pipe 10, the seal between the two one-way discs 14 is released when the two push rods 13 abut against each other, thereby connecting the water inlet for cleaning.

[0030] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A spiral guide slurry pump anti-clogging structure, comprising a conveying pipe (1), characterized in that: The conveying pipe (1) is provided with an anti-blocking mechanism, which includes a bidirectional blade (2). The bidirectional blade (2) is rotatably connected inside the conveying pipe (1). Multiple reinforcing rods (3) are provided at equal intervals inside the bidirectional blade (2). A conveying shaft (4) is coaxially provided inside the bidirectional blade (2). A conveying motor (5) is fixedly provided on the conveying pipe (1). The extended end of the conveying motor (5) is connected to the conveying shaft (4). Both ends of the conveying pipe (1) are provided with discharge ports (6). The two discharge ports (6) are respectively connected to an external pump body. A feed box (7) is provided in the middle of the conveying pipe (1).

2. The anti-clogging structure of a spiral flow-guided slurry pump according to claim 1, characterized in that: The feed box (7) is provided with a feed blade (8) that rotates inside the feed box (7). The feed blade (8) fits into the feed box (7).

3. The anti-clogging structure of a spiral flow-guided slurry pump according to claim 2, characterized in that: The side wall of the feed box (7) is provided with a feed motor (9), and the extended end of the feed motor (9) is connected to the feed blade (8).

4. The anti-clogging structure of a spiral flow guiding slurry pump according to claim 3, characterized in that: Two fixed pipes (10) are provided at equal intervals on the side wall of the feed box (7), and the two fixed pipes (10) are respectively connected to the feed box (7).

5. The anti-clogging structure of a spiral flow-guided slurry pump according to claim 4, characterized in that: The two fixed pipes (10) are respectively threaded with external pipes (11), and the two external pipes (11) are respectively connected to the external water inlet equipment.

6. The anti-clogging structure of a spiral flow-guided slurry pump according to claim 5, characterized in that: Guide frames (12) are fixedly installed inside the outer pipe (11) and the fixed pipe (10), and top rods (13) are slidably installed on the two guide frames (12), and a one-way disc (14) is installed on each top rod (13).

7. The anti-clogging structure of a spiral flow-guided slurry pump according to claim 6, characterized in that: One-way grooves (15) are respectively provided on the fixed pipe (10) and the outer pipe (11), and the one-way disc (14) abuts against the one-way groove (15).

8. The anti-clogging structure of a spiral flow-guided slurry pump according to claim 7, characterized in that: Each of the top rods (13) is fitted with a spring (16), and the two ends of the spring (16) abut against the one-way disc (14) and the guide frame (12) respectively.

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