A slurry pump with a slurry dredging function

Abstract

The application discloses a slurry pump with a slurry dredging function, and relates to the technical field of slurry pumps.The slurry pump comprises a pump body, a vane wheel arranged in the pump body, a transmission shaft, and a motor in transmission connection with the vane wheel, wherein the pump body is in communication with a feeding pipe, the feeding pipe is detachably connected with a connecting box, a crushing mechanism is arranged in the connecting box, the crushing mechanism is used for crushing large impurities, a cutting mechanism is arranged on the vane wheel, and the cutting mechanism is used for cutting off fibrous impurities.In the application, the connecting box is detachable, facilitating modularized maintenance;the crushing mechanism and the cutting mechanism work in cooperation;the crushing mechanism is used for pretreating large materials, reducing the size of the materials to adapt to the inlet of the pump body, preventing the pump body from being blocked;the cutting mechanism is used for cutting off fibrous impurities, preventing the impurities from winding around the vane wheel;the two mechanisms work in cooperation, so that the materials can smoothly pass through the pump body, the conveying efficiency of the pump body is improved, the frequency of shutdown maintenance caused by impurities is reduced, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of slurry pump technology, and in particular to a slurry pump with slurry diversion function. Background Technology

[0002] Slurry pumps, in terms of working principle, belong to centrifugal pumps. Conceptually, they are machines that increase the energy of a solid-liquid mixture by using centrifugal force. They are devices that convert electrical energy into the kinetic and potential energy of the medium. They are mainly used in industries such as mining, power plants, dredging, metallurgy, chemical industry, building materials, and petroleum. Under the action of centrifugal force, the liquid is thrown from the center of the impeller to the outer edge and gains energy, leaving the outer edge of the impeller at high speed and entering the volute pump casing.

[0003] Existing slurry pumps are prone to clogging at the inlet, requiring regular cleaning and maintenance. Repeated disassembly and reassembly also reduce the pump body's sealing performance, thus affecting its service life. Due to the different environments in which the pump body is used, some conveyed materials contain fibrous impurities that can easily become entangled on the impeller, affecting its normal operation. Existing equipment cannot clean fibrous impurities in a timely manner, affecting work efficiency.

[0004] Therefore, there is an urgent need for a slurry pump with slurry diversion function to solve the problems existing in the above-mentioned technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a slurry pump with slurry diversion function to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a slurry pump with slurry guiding function, including a pump body, an impeller disposed in the pump body, the impeller being connected to a motor via a drive shaft, the pump body being connected to a feed pipe, a connecting box being detachably connected to the feed pipe, a crushing mechanism being installed in the connecting box, the crushing mechanism being used to crush large impurities, and a cutting mechanism being disposed on the impeller, the cutting mechanism being used to cut fibrous impurities.

[0007] Optionally, the impeller includes a hub, with a plurality of blades circumferentially fixedly connected to the side of the hub, and the drive shaft passes through the center of the hub and is fixedly connected to the hub.

[0008] Optionally, the cutting mechanism includes a plurality of cutting components disposed on the blade. Each cutting component includes a pair of fixed plates fixedly connected to the outer wall of the blade. A rotating shaft is rotatably connected between the two fixed plates. A plurality of cutting blades are installed at equal intervals on the rotating shaft. The cutting blades are used to cut fibrous impurities.

[0009] Optionally, the crushing mechanism includes guide plates symmetrically fixed to the inner wall of the connecting box, an extrusion block is provided between the two guide plates, a channel is provided between the extrusion block and the guide plate, a diverting block is installed in the middle of the extrusion block, a center plate is provided on the side of the extrusion block away from the diverting block, the extrusion block can move laterally back and forth along the center plate, the end of the extrusion block away from the diverting block is flexibly connected to the center plate, a groove is provided in the center plate, a driving component is installed in the groove, and the driving component is drivenly connected to the extrusion block.

[0010] Optionally, the driving assembly includes a driving motor fixedly connected to the inner wall of the groove. The output shaft of the driving motor is fixedly connected to a first transmission wheel. The first transmission wheel is connected to a second transmission wheel via a transmission belt. A connecting shaft is fixedly connected to the center of the second transmission wheel. Movable rods are respectively provided on both sides of the connecting shaft. The movable rods are slidably connected to the center plate. The movable rods extend out of the center plate and are fixedly connected to the extrusion block. An eccentric block is fixedly connected to the connecting shaft. The eccentric block is in intermittent contact with the movable rods.

[0011] Optionally, a baffle is fixedly connected to the moving rod, and a return spring is sleeved on the outside of the moving rod. One end of the return spring is fixedly connected to the baffle, and the other end of the return spring is fixedly connected to the inner wall of the groove.

[0012] Optionally, limit rods are symmetrically arranged on the center plate, with the two limit rods located on the upper and lower sides of the connecting shaft, respectively. The limit rods extend out of the center plate and are fixedly connected to the extrusion block, and the limit rods are slidably connected to the center plate.

[0013] Optionally, the end of the connecting shaft extends out of the center plate and is fixedly connected to a mounting plate. The mounting plate is located on the side of the center plate away from the extrusion block. A plurality of secondary crushing blades are fixedly connected to the mounting plate, and the secondary crushing blades are used to further crush the impurities.

[0014] Optionally, a fixing rod is fixedly connected to each side of the center plate, and the end of the fixing rod away from the center plate is fixedly connected to the inner wall of the connecting box.

[0015] This invention discloses the following technical effects: During use, material is fed into the feed pipe. As the material passes through the connecting box, large pieces are crushed by the crushing mechanism inside the connecting box. The crushed material then enters the pump body, reducing the possibility of pump blockage. The material may contain fibrous materials, which are cut by the cutting mechanism on the impeller, preventing fibrous materials from entangled on the impeller and affecting normal operation. In this invention, the connecting box is detachable, facilitating modular maintenance. The crushing and cutting mechanisms work together. The crushing mechanism pre-processes large pieces of material, reducing their size to fit the pump inlet and preventing blockage. The cutting mechanism cuts fibrous impurities, preventing them from entangled on the impeller. The combined effect of these two mechanisms ensures smooth material flow through the pump, improving pump conveying efficiency, reducing downtime due to impurities, and extending equipment lifespan. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the impeller structure of the present invention;

[0019] Figure 3 This is a front view of the impeller of the present invention;

[0020] Figure 4 For the present invention Figure 2 A magnified view of part A in the image;

[0021] Figure 5 This is a top view of the connecting box of the present invention.

[0022] Figure 6 This is a schematic diagram of the internal structure of the central plate of the present invention;

[0023] In the diagram: 1. Pump body; 101. Hub; 102. Drive shaft; 103. Blade; 1031. Fixing plate; 1032. Rotating shaft; 1033. Cutting blade; 2. Motor; 3. Connecting box; 301. Guide plate; 302. Diverting block; 303. Extrusion block; 304. Center plate; 3041. Groove; 3042. Drive motor; 3043. First transmission wheel; 3044. Transmission belt; 3045. Second transmission wheel; 3046. Eccentric block; 3047. Return spring; 3048. Baffle; 305. Connecting shaft; 306. Secondary crushing blade; 307. Mounting plate; 308. Moving rod; 309. Limiting rod; 310. Fixing rod; 4. Feed pipe. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Reference Figures 1 to 6 As shown, this embodiment provides a slurry pump with slurry guiding function, including a pump body 1, an impeller is provided inside the pump body 1, the impeller is connected to a motor 2 through a drive shaft 102, the pump body 1 is connected to a feed pipe 4, a connecting box 3 is detachably connected to the feed pipe 4, a crushing mechanism is installed inside the connecting box 3, the crushing mechanism is used to crush large impurities, and a cutting mechanism is provided on the impeller, the cutting mechanism is used to cut fibrous impurities.

[0027] In operation, material is fed into the feed pipe 4. As the material passes through the connecting box 3, large pieces are crushed by the crushing mechanism within the connecting box 3. The crushed material then enters the pump body 1, reducing the likelihood of blockage. The material may contain fibrous material, which is cut off by the cutting mechanism on the impeller, preventing fibrous material from entangled on the impeller and affecting normal operation. In this invention, the connecting box 3 is detachable, facilitating modular maintenance. The crushing and cutting mechanisms work together: the crushing mechanism pre-processes large pieces of material, reducing their size to fit the pump body 1 inlet and preventing blockage; the cutting mechanism cuts off fibrous impurities, preventing them from entangled on the impeller. The combined action of these two mechanisms ensures smooth material flow through the pump body 1, improving its conveying efficiency, reducing downtime due to impurities, and extending equipment lifespan.

[0028] Further refining the design, the impeller includes a hub 101, with several blades 103 fixedly connected circumferentially to the side of the hub 101. A drive shaft 102 passes through the center of the hub 101 and is fixedly connected to it. The impeller employs a standardized structure of hub 101 and circumferential blades 103. Combined with the fixed connection between the drive shaft 102 and hub 101, this ensures stable power transmission. The center-positioning design of the hub 101 reduces eccentric vibration during impeller rotation, lowering mechanical wear. The circumferentially uniform distribution of the blades 103 ensures the uniformity of slurry flow, avoids cavitation caused by localized impacts, and improves the smoothness of pump body 1 operation.

[0029] Further refining the design, the cutting mechanism includes several cutting components mounted on the blades 103. Each cutting component includes a pair of fixed plates 1031 fixedly connected to the outer wall of the blades 103. A rotating shaft 1032 is rotatably connected between the two fixed plates 1031. Several cutting blades 1033 are evenly spaced on the rotating shaft 1032. The cutting blades 1033 are used to cut fibrous impurities. The centrifugal force of the rotating impeller drives the cutting blades 1033 to rotate at high speed. The high-speed rotating cutting blades 1033 cut the fibrous impurities, preventing blockage. The fixed plates 1031 provide stable support for the rotating shaft 1032. The evenly spaced cutting blades 1033 ensure that the fibrous impurities are cut uniformly. The cutting blades 1033 act directly on the impeller, completing the cutting before the impurities enter the core area of ​​the pump body 1. This effectively prevents power loss or jamming caused by fibers entangled in the impeller, ensuring the continuous and efficient operation of the pump body 1.

[0030] Further refining the scheme, the crushing mechanism includes guide plates 301 symmetrically fixed to the inner wall of the connecting box 3, a squeezing block 303 is provided between the two guide plates 301, a channel is provided between the squeezing block 303 and the guide plates 301, a diverting block 302 is installed in the middle of the squeezing block 303, a center plate 304 is provided on the side of the squeezing block 303 away from the diverting block 302, the squeezing block 303 can move laterally back and forth along the center plate 304, the end of the squeezing block 303 away from the diverting block 302 is flexibly connected to the center plate 304, a groove 3041 is provided in the center plate 304, a driving component is installed in the groove 3041, and the driving component is connected to the squeezing block 303 in a transmission connection. The crushing mechanism guides the slurry flow through the guide plate 301. The channel between the extrusion block 303 and the guide plate 301 forms an extrusion and crushing working chamber. The diversion block 302 disperses the impact force of the slurry and reduces the direct impact on the extrusion block 303. The extrusion block 303 moves laterally and reciprocates to form a dynamic extrusion zone with the guide plate 301, which mechanically crushes large impurities. The center plate 304 serves as the motion reference of the extrusion block 303. It adopts a soft connection design to balance the flexibility of movement and the sealing performance, preventing slurry leakage. Overall, it achieves efficient crushing of large impurities and reduces their particle size to match the conveying capacity of the pump body 1.

[0031] Further refining the scheme, the drive assembly includes a drive motor 3042 fixedly connected to the inner wall of the groove 3041. The output shaft of the drive motor 3042 is fixedly connected to a first transmission wheel 3043. The first transmission wheel 3043 is connected to a second transmission wheel 3045 via a transmission belt 3044. A connecting shaft 305 is fixedly connected to the center of the second transmission wheel 3045. Movable rods 308 are respectively provided on both sides of the connecting shaft 305. The movable rods 308 are slidably connected to the center plate 304. The movable rods 308 extend out of the center plate 304 and are fixedly connected to the pressing block 303. An eccentric block 3046 is fixedly connected to the connecting shaft 305. The eccentric block 3046 is in intermittent contact with the movable rods 308. The drive motor 3042 drives the first transmission wheel 3043 to rotate. The first transmission wheel 3043 drives the second transmission wheel 3045 to rotate via the transmission belt 3044. The second transmission wheel 3045 drives the eccentric block 3046 to rotate, thereby realizing the squeezing action on the moving rod 308. When the eccentric block 3046 rotates with the connecting shaft 305, its eccentric mass generates centrifugal force, which intermittently pushes the moving rod 308 to realize the reciprocating motion of the squeezing block 303. The rotational motion of the eccentric block 3046 is converted into the linear motion of the moving rod 308. The power transmission is direct and efficient. Moreover, the intermittent contact between the eccentric block 3046 and the moving rod 308 reduces mechanical friction loss and improves the operational reliability of the crushing mechanism.

[0032] Further refining the design, a baffle 3048 is fixedly connected to the moving rod 308, and a return spring 3047 is sleeved on the outside of the moving rod 308. One end of the return spring 3047 is fixedly connected to the baffle 3048, and the other end is fixedly connected to the inner wall of the groove 3041. The cooperation between the return spring 3047 and the baffle 3048 forms an automatic reset mechanism. When the eccentric block 3046 disengages from the moving rod 308, the return spring 3047 pushes the moving rod 308 to quickly reset through the baffle 3048, ensuring that the extrusion block 303 is ready for the next extrusion action. At the same time, it reduces the continuous load on the drive motor 3042, reduces energy consumption, and also ensures the continuity and stability of the movement of the extrusion block 303, thereby improving crushing efficiency.

[0033] Further refining the design, limit rods 309 are symmetrically arranged on the center plate 304. The two limit rods 309 are located on the upper and lower sides of the connecting shaft 305, respectively. The limit rods 309 extend beyond the center plate 304 and are fixedly connected to the extrusion block 303, while also being slidably connected to the center plate 304. This sliding connection design of the limit rods 309 provides precise motion guidance for the extrusion block 303. The symmetrical distribution of the two limit rods 309 on the upper and lower sides of the connecting shaft 305 restricts the extrusion block 303 to reciprocating motion only in the lateral direction, preventing offset or jamming caused by uneven force, improving the straightness of the extrusion block 303's movement, reducing mechanical wear, and ensuring the long-term stability of the crushing mechanism.

[0034] Further refining the design, the end of the connecting shaft 305 extends beyond the center plate 304 and is fixedly connected to a mounting plate 307. The mounting plate 307 is located on the side of the center plate 304 away from the extrusion block 303. Several secondary crushing blades 306 are fixedly connected to the mounting plate 307, which are used to further crush impurities. The secondary crushing blades 306 extend the crushing function through the mounting plate 307 at the end of the connecting shaft 305. When the connecting shaft 305 rotates, the secondary crushing blades 306 rotate synchronously with the mounting plate 307, further crushing the impurities that have undergone preliminary crushing. This ensures that the particle size of the impurities is completely reduced to the conveying requirements of the pump body 1, preventing large residual impurities from entering the pump body 1 and causing blockages or damage, thereby improving the conveying reliability of the pump body 1.

[0035] Further refining the design, fixing rods 310 are fixedly connected to both sides of the center plate 304, with the end of the fixing rod 310 away from the center plate 304 fixedly connected to the inner wall of the connecting box 3. The center plate 304 is fixed to the inner wall of the connecting box 3 through the fixing rods 310, forming a stable structural support system. The fixing rods 310 distribute the force on the center plate 304, reducing the vibration transmission caused by the reciprocating motion of the extrusion block 303 and reducing the overall mechanical stress of the connecting box 3. At the same time, the rigid connection of the fixing rods 310 ensures the positional stability of the center plate 304 under the impact of slurry, avoiding displacement or deformation caused by vibration, and improving the overall structural reliability of the crushing mechanism.

[0036] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0037] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A slurry pump with slurry guiding function, characterized in that: The pump body (1) includes an impeller inside the pump body (1), which is connected to a motor (2) via a drive shaft (102). The pump body (1) is connected to a feed pipe (4), and a connecting box (3) is detachably connected to the feed pipe (4). A crushing mechanism is installed inside the connecting box (3), which is used to crush large impurities. A cutting mechanism is provided on the impeller, which is used to cut fibrous impurities. The crushing mechanism includes guide plates (301) symmetrically fixed to the inner wall of the connecting box (3), and an extrusion block (303) is provided between the two guide plates (301). A channel is provided between the extrusion block (303) and the guide plate (301). A diverter block (302) is installed in the middle of the extrusion block (303). A center plate (304) is provided on the side of the extrusion block (303) away from the diverter block (302). The extrusion block (303) can move laterally and reciprocally along the center plate (304). The end of the extrusion block (303) away from the diverter block (302) is flexibly connected to the center plate (304). A groove (3041) is provided in the center plate (304). A drive assembly is installed in the groove (3041). The drive assembly is connected to the extrusion block (303) in a transmission. The drive assembly includes a drive motor (3042) fixedly connected to the inner wall of the groove (3041). The output shaft of the drive motor (3042) is fixedly connected to a first transmission wheel (3043). The first transmission wheel (3043) is connected to a second transmission wheel (3045) via a transmission belt (3044). A connecting shaft (305) is fixedly connected to the center of the second transmission wheel (3045). Moving rods (308) are respectively provided on both sides of the connecting shaft (305). The moving rods (308) are slidably connected to the center plate (304). The moving rods (308) extend out of the center plate (304) and are fixedly connected to the extrusion block (303). An eccentric block (3046) is fixedly connected to the connecting shaft (305). The eccentric block (3046) is in intermittent contact with the moving rods (308). The end of the connecting shaft (305) extends out of the center plate (304) and is fixedly connected to the mounting plate (307). The mounting plate (307) is located on the side of the center plate (304) away from the extrusion block (303). A plurality of secondary crushing blades (306) are fixedly connected to the mounting plate (307). The secondary crushing blades (306) are used to further crush impurities.

2. The slurry pump with slurry guiding function according to claim 1, characterized in that: The impeller includes a hub (101), and a plurality of blades (103) are fixedly connected to the side of the hub (101) in a circumferential direction. The drive shaft (102) passes through the center of the hub (101) and is fixedly connected to the hub (101).

3. The slurry pump with slurry guiding function according to claim 2, characterized in that: The cutting mechanism includes a plurality of cutting components disposed on the blade (103). Each cutting component includes a pair of fixed plates (1031) fixedly connected to the outer wall of the blade (103). A rotating shaft (1032) is rotatably connected between the two fixed plates (1031). A plurality of cutting blades (1033) are equally spaced on the rotating shaft (1032). The cutting blades (1033) are used to cut fiber impurities.

4. The slurry pump with slurry guiding function according to claim 1, characterized in that: A baffle (3048) is fixedly connected to the moving rod (308), and a return spring (3047) is sleeved on the outside of the moving rod (308). One end of the return spring (3047) is fixedly connected to the baffle (3048), and the other end of the return spring (3047) is fixedly connected to the inner wall of the groove (3041).

5. The slurry pump with slurry guiding function according to claim 1, characterized in that: The center plate (304) is symmetrically provided with limiting rods (309). The two limiting rods (309) are located on the upper and lower sides of the connecting shaft (305) respectively. The limiting rods (309) extend out of the center plate (304) and are fixedly connected to the extrusion block (303). The limiting rods (309) are slidably connected to the center plate (304).

6. The slurry pump with slurry guiding function according to claim 1, characterized in that: Fixed rods (310) are fixedly connected to both sides of the center plate (304), and the end of the fixed rod (310) away from the center plate (304) is fixedly connected to the inner wall of the connecting box (3).

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