Filtering device for preventing slag slurry pump from being blocked

Abstract

This utility model discloses a filtration device for preventing slurry pump blockage, relating to the field of slurry pump technology. It includes an outer cylinder, a filter cartridge, and a drive unit. Flanges for connection are provided on both sides of the outer cylinder, and a flow chamber is provided inside the outer cylinder. The outer cylinder is installed at the water inlet end of the pump body and connected via the flanges. The filter cartridge is installed in the flow chamber via a support rod. Several flow ports are provided through the filter cartridge. Spikes are fixedly installed on the outer wall of the filter cartridge, arranged in a ring and offset from the flow ports. The filter cartridge has a hollow structure, with a gap reserved between the inner side of the filter cartridge and the inner wall of the outer cylinder. The support rod is driven by the drive unit. This utility model actively breaks up larger sludge lumps in the water by rotating the spikes on the outer wall of the filter cartridge, achieving efficient front-end crushing and significantly reducing the risk of sludge clogging the pipeline.

Description

Technical Field

[0001] This utility model relates to the field of slurry pump technology, specifically a filter device for preventing slurry pump blockage. Background Technology

[0002] In fields such as mining, river dredging, and metallurgical slurry transportation, slurry pumps, as core conveying equipment, have long faced the severe challenge of inlet blockage. Fibers, entangled impurities (such as plastic bags and ropes), and easily caking mud mixed in the slurry fluid can easily form a dense blockage layer at the pump inlet filter or pipe bends.

[0003] Existing technologies generally suffer from three major drawbacks: low anti-clogging efficiency, reliance on manual intervention, and poor system integration. Therefore, there is an urgent need for an anti-clogging device that can be embedded in the pump inlet and has both active crushing and dynamic self-cleaning functions to eliminate the causes of clogging at the source and ensure the long-term stable operation of slurry pumps. Summary of the Invention

[0004] This invention provides a filtration device for preventing slurry pump blockage, which overcomes the shortcomings described in the background art.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A filtration device for preventing slurry pump clogging includes an outer cylinder, a filter cartridge, and a drive unit. The outer cylinder has flanges on both sides for connection, and a flow chamber is located inside. The outer cylinder is installed at the inlet end of the pump body and connected via the flanges. The filter cartridge is mounted in the flow chamber via a support rod. Several flow ports are provided through the filter cartridge. Spikes are fixedly installed on the outer wall of the filter cartridge, arranged in a ring and offset from the flow ports. The filter cartridge has a hollow structure, and a gap is provided between the inner side of the filter cartridge and the inner wall of the outer cylinder. The support rod is driven by the drive unit. The support rod is connected to the filter cartridge, specifically through a fixed connection or a locking connection, so that when the support rod is connected to the output end of the drive unit, it can be driven to rotate.

[0007] When the filter cartridge in this invention is driven to rotate by the drive device, it can actively break up larger clumps of mud in the water using the spikes on its outer wall, achieving efficient front-end crushing and reducing the risk of mud clogging in the pipeline. The filter cartridge is driven to rotate by the drive device via a frame, making it a dynamic filtration element. The centrifugal force and water flow shear force generated by the rotation can dislodge broken impurities adhering to the surface of the filter cartridge or the spikes. It can also disturb the fluid around the filter cartridge, preventing solid particles from accumulating and hardening on the surface of the filter cartridge or at the bottom of the device. It continuously exposes new filtration surface, avoiding localized areas from clogging too quickly due to impurity accumulation.

[0008] The staggered distribution of the spikes and flow inlets ensures both the cleaning effect of the spikes and sufficient effective filtration area of ​​the flow inlets. The active breaking action of the spikes and the continuous rotation of the filter cartridge together constitute the self-cleaning mechanism of the device. This greatly reduces the adhesion of impurities to the filter cartridge, reduces the need for manual cleaning or backwashing, extends the continuous operation time of the device, and reduces downtime maintenance costs.

[0009] The device is directly installed at the inlet of the slurry pump via a flange, featuring a compact design that does not occupy excessive space. The standardized flange connection facilitates installation, disassembly, and maintenance, and allows for easy integration into existing slurry conveying systems.

[0010] By effectively intercepting and breaking up impurities that may clog the pump chamber, impeller, or seals, the risk of slurry pumps becoming clogged, stuck, or abnormally worn is significantly reduced, improving the pump's operational reliability and service life.

[0011] A preferred technical solution: The end of the outer cylinder away from the pump body is the water inlet, and a guide plate is installed on the inner wall of the outer cylinder on the side near the water inlet, so that some of the edge water flow can be guided to flow towards the side wall of the filter cartridge.

[0012] A preferred technical solution: The guide plate has a triangular block structure.

[0013] A preferred technical solution: the outer end of the support rod is supported by a bearing, and the bearing is locked and installed on the outer wall of the outer cylinder.

[0014] A preferred technical solution: Several sealing rings are provided at the rotational engagement point between the frame rod and the outer cylinder.

[0015] A preferred technical solution: The driving device is a motor.

[0016] A preferred technical solution: The motor is mounted on the outer cylinder via a frame.

[0017] A preferred technical solution: the spike is a conical structure.

[0018] By adopting the above technical solution, the beneficial effects of this utility model are as follows.

[0019] 1. This utility model can actively break up larger mud lumps in the water by rotating the spikes on the outer wall of the filter cartridge, achieving efficient front-end crushing and significantly reducing the risk of mud lumps clogging the pipeline.

[0020] 2. This utility model uses the centrifugal force and water flow shear force generated by the rotation of the filter cartridge to remove attached impurities, disturb the fluid to prevent particles from accumulating and caking, and continuously expose new filter surfaces. Combined with the breaking action of the spikes, it forms a self-cleaning mechanism, reducing the need for manual cleaning and extending the continuous operation time.

[0021] 3. This utility model can be directly and compactly installed at the inlet end of the slurry pump via a flange, which is convenient for installation, disassembly and maintenance, and easy to integrate into existing systems; by effectively intercepting broken impurities, it significantly reduces the risk of slurry pump blockage, jamming and abnormal wear, and improves the pump's operational reliability and lifespan. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the combination of a filtration device and a slurry pump.

[0024] Figure 2 This is a schematic diagram of the filtration device.

[0025] Figure 3 A schematic diagram of the slurry pump from another perspective;

[0026] Figure 4 This is a cross-sectional view of a slurry pump.

[0027] Explanation of key figure labels:

[0028] 1. Outer cylinder; 11. Flange; 12. Flow chamber; 2. Filter cartridge; 21. Frame rod; 22. Flow port; 23. Spike; 3. Drive unit; 4. Pump body; 5. Guide plate; 6. Bearing; 7. Sealing ring; 8. Frame. Detailed Implementation

[0029] like Figures 1-4 As shown, this utility model provides a filtration device for preventing slurry pump blockage, including an outer cylinder 1, a filter cartridge 2, and a drive device 3. The outer cylinder 1 has flanges 11 on both sides for connection, and a flow chamber 12 inside. The outer cylinder 1 is installed at the inlet end of the pump body 4 and is aligned and connected via the flanges 11. The filter cartridge 2 is installed in the flow chamber 12 via a support rod 21. Several flow ports 22 are provided through the filter cartridge 2. Spikes 23 are fixedly installed on the outer wall of the filter cartridge 2, and the spikes 23 are distributed in a ring on the outer wall of the filter cartridge 2, offset from the flow ports 22. The filter cartridge 2 has a hollow structure, and a gap is reserved between the inner side of the filter cartridge 2 and the inner wall of the outer cylinder 1. The support rod 21 is driven by the drive device 3. The support rod 21 is connected to the filter cartridge 2, specifically through a fixed connection or a locking connection, so that when the support rod 21 is connected to the output end of the drive device 3, it can be driven to rotate.

[0030] Furthermore, the end of the outer cylinder 1 away from the pump body 4 is the water inlet, and a guide plate 5 is installed on the inner wall of the outer cylinder 1 near the water inlet, so that some of the edge water flow can be guided to flow towards the side wall of the filter cartridge 2.

[0031] Furthermore, guide plate 5 has a triangular block structure.

[0032] Furthermore, the outer end of the support rod 21 is supported by a bearing 6, and the bearing 6 is locked to the outer wall of the outer cylinder 1.

[0033] Furthermore, several sealing rings 7 are provided at the rotational engagement point between the support rod 21 and the outer cylinder 1.

[0034] Furthermore, the drive unit 3 is a motor.

[0035] Furthermore, the motor is mounted on the outer cylinder 1 via the frame 8.

[0036] Furthermore, spike 23 has a conical structure.

[0037] When the filter cartridge 2 in this invention is driven to rotate by the drive device 3, the spikes 23 on the outer wall of the filter cartridge 2 can actively break up larger mud lumps in the water, achieving efficient front-end crushing and reducing the risk of mud lumps clogging the pipeline. The filter cartridge 2 is driven to rotate by the drive device 3 via the support rod 21, making it a dynamic filtration element. The centrifugal force and water flow shear force generated by the rotation can dislodge the broken impurities attached to the surface of the filter cartridge 2 or the spikes 23. It can also disturb the fluid around the filter cartridge 2, preventing solid particles from accumulating and caking on the surface of the filter cartridge 2 or at the bottom of the device. It continuously exposes new filtration surfaces, avoiding localized areas from clogging too quickly due to impurity accumulation.

[0038] The staggered distribution of the spikes 23 and the flow port 22 ensures both the cleaning effect of the spikes 23 and sufficient effective filtration area of ​​the flow port 22. The active crushing effect of the spikes 23 and the continuous rotation of the filter cartridge 2 together constitute the self-cleaning mechanism of the device. This greatly reduces the adhesion of impurities on the filter cartridge 2, reduces the need for manual cleaning or backwashing, extends the continuous operation time of the device, and reduces downtime maintenance costs.

[0039] The device is directly installed at the inlet of the slurry pump via flange 11. Its compact design does not require excessive additional space. The standardized flange connection facilitates installation, disassembly, and maintenance, and allows for easy integration into existing slurry conveying systems.

[0040] By effectively intercepting and breaking up impurities that may clog the pump chamber, impeller, or seals, the risk of slurry pumps becoming clogged, stuck, or abnormally worn is significantly reduced, improving the pump's operational reliability and service life.

[0041] Example 1

[0042] like Figures 1-4As shown, this embodiment provides a filtration device for preventing slurry pump blockage, mainly composed of an outer cylinder 1, a filter cartridge 2, and a drive system. The outer cylinder 1 has standard flanges 11 on both sides, which are aligned and connected to the slurry pump inlet. The inside of the cylinder is a flow chamber 12, with a triangular guide plate 5 fixedly installed on the inner wall of the inlet end to guide the edge water flow to the side wall of the filter cartridge 2. The filter cartridge 2 is suspended in the flow chamber 12 by a support rod 21. Several flow ports 22 for filtration are opened in its body, and conical spikes 23 are distributed in a ring on the outer wall, with the spikes 23 staggered from the flow ports 22. The support rod 21 is locked to the filter cartridge 2, and its outer end is supported on the outer wall of the cylinder by a bearing 6. Multiple layers of sealing rings 7 are provided at the rotating joint. The drive system uses a motor, which is fixed to the top of the outer cylinder 1 by a bracket. The motor output is connected to the support rod 21 to drive the filter cartridge 2 to rotate.

[0043] Working principle and usage: Connect the device vertically to the slurry pump inlet pipe via flange 11, with the inlet facing outwards. Upon startup, first turn on the motor to drive the filter cartridge 2 to rotate (against the flow direction is recommended), then start the slurry pump. The sludge-laden fluid impacts the filter cartridge 2 via the guide plate 5. The rotating conical spikes 23 actively tear apart large sludge chunks, centrifugal force removes attached impurities, and the shear force of the water flow disturbs the fluid to prevent caking. The staggered design of the spikes 23 and the flow port 22 exposes new filter surfaces while continuously breaking down the sludge, forming a self-cleaning cycle.

[0044] During maintenance shutdown, turn off the slurry pump and wait for the chamber to empty before stopping filter cartridge 2. Regularly check the wear of the spikes 23 (replace filter cartridge 2 if deformed). Replenish bearing lubricant and check the condition of sealing ring 7 every 500 hours of operation. For long-term shutdown, thoroughly empty the chamber to prevent slurry solidification.

[0045] The structure of a slurry pump is based on existing technology, and it mainly includes structures such as a pump casing and an impeller. Figure 1 , 3 As shown in Figure 4, the external and internal structures of the slurry pump are illustrated. The specific structure will not be described in detail here.

[0046] The above are merely preferred embodiments of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.

Claims

1. A filter device for preventing slurry pump clogging, characterized in that, include: The outer cylinder has flanges on both sides for connection, and a flow cavity is provided inside the outer cylinder. The outer cylinder is installed at the water inlet end of the pump body and is connected by the flanges. The filter cartridge is installed in the flow chamber by a frame rod. Several flow ports are provided through the filter cartridge. Spikes are fixedly installed on the outer wall of the filter cartridge and are distributed in a ring on the outer wall of the filter cartridge and are offset from the flow ports. The filter cartridge has a hollow structure and a gap is reserved between the inner side of the filter cartridge and the inner wall of the outer cylinder. The frame rod is driven by a drive device.

2. The filter device for preventing slurry pump blockage according to claim 1, characterized in that, The outer cylinder has a water inlet at the end furthest from the pump body, and a guide plate is installed on the inner wall of the outer cylinder on the side closest to the water inlet.

3. The filter device for preventing slurry pump blockage according to claim 2, characterized in that, The guide plate has a triangular block structure.

4. The filter device for preventing slurry pump blockage according to claim 1, characterized in that, The outer end of the support pole is supported by a bearing, and the bearing is locked to the outer wall of the outer cylinder.

5. The filter device for preventing slurry pump blockage according to claim 4, characterized in that, Several sealing rings are provided at the rotatable joint between the frame rod and the outer cylinder.

6. The filter device for preventing slurry pump blockage according to claim 1, characterized in that, The driving device is an electric motor.

7. The filter device for preventing slurry pump blockage according to claim 6, characterized in that, The motor is mounted on the outer cylinder via a frame.

8. The filter device for preventing slurry pump blockage according to claim 1, characterized in that, The spikes have a conical structure.

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