Oil slurry pump with filtering function

Abstract

This invention relates to the field of fluid transfer pump technology and discloses an oil slurry pump with a filtration function. The pump includes a housing, an mounting mechanism on the outer wall of the housing, a filter mechanism mounted on the outer wall of the mounting mechanism, a recovery mechanism on the left side of the housing, and a motor on the right side of the housing. A drain pipe is connected to the rear side of the outer wall of the housing. A base is fixedly connected to the outer wall of the housing, a reduction gear assembly is connected to the left side of the housing, and a support frame is fixedly connected to the bottom of the base. The filter mechanism includes a return pipe connected to the outer wall of the drain pipe. In this invention, a bottom baffle intercepts heavy coarse impurities in the pipe, and the return high-pressure clean oil not only increases the static pressure of the suction chamber and inhibits medium vaporization and cavitation, but also continuously backwashes the surface of the filter screen to flush away accumulated dirt, thus maintaining the filter's filtration throughput for a long time.

Description

Technical Field

[0001] This invention relates to the field of fluid transfer pump technology, and more particularly to an oil slurry pump with a filtration function. Background Technology

[0002] The slurry pump is the core power equipment for bottom circulation transportation in the fractionation tower of the catalytic cracking unit. The medium is high-temperature slurry, which is mixed with high-hardness alumina and silica catalyst solid particles. It also has the characteristics of high viscosity and easy coking. Traditional pump body structure preheating pipeline is prone to sand accumulation and blockage, and its anti-cavitation performance is insufficient, making it difficult to meet the production needs of long-term continuous operation of the unit under the condition of heavy crude oil with high slag content.

[0003] A search revealed Chinese Patent Publication No. CN212389536U, which discloses an oil slurry pump used in an oil slurry filtration device. The pump includes an outer shell, an inner shell, a semi-open impeller, and a pump shaft. The outer shell includes a first base and a first cover. The first cover has a first inlet and a first outlet, and a first drain outlet on its side. The inner shell is located within a first cavity, which is formed by the second base and the second cover together. The semi-open impeller is located within the second cavity and includes a cover plate and blades. The pump shaft passes sequentially through the first base, the second base, and the semi-open impeller and is dynamically sealed to the first base. A second inlet is located on the second cover. A stable gap exists between the cover plate of the semi-open impeller and the second base, and a stable gap exists between the blades of the semi-open impeller and the second cover. However, the above invention patents only rely on the gap between the shell cavity and the impeller to achieve simple media flow. The feed end is not equipped with a pre-intercepting impurity mechanism, and the lack of a return pipeline makes it impossible to raise the static pressure of the medium in the suction cavity. This makes the internal medium easy to approach the saturation vaporization pressure and cause cavitation. As a result, after long-term operation, the pipeline accumulates impurities, causing the flow resistance to increase, and the generated bubbles cause shell cavitation loss. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides an oil slurry pump with a filtration function, which aims to solve the cavitation problem caused by the saturation and vaporization of the internal medium after the device is in operation in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an oil slurry pump with a filtration function, comprising a housing, an mounting mechanism provided on the outer wall of the housing, a filtration mechanism installed on the outer wall of the mounting mechanism, a recovery mechanism provided on the left side of the housing, the mounting mechanism including a motor, the motor being located on the right side of the housing, a drain pipe connected to the rear side of the outer wall of the housing, a base fixedly connected to the outer wall of the housing, a reduction gear assembly connected to the left side of the housing, and a support frame fixedly connected to the bottom of the base.

[0006] As a further description of the above technical solution: The filtration mechanism includes a return pipe connected to the outer wall of the drain pipe. A valve is fixedly connected to the outer wall of the return pipe. A flange is fixedly connected to one end of the valve. An inlet pipe is threaded to the bottom of the flange. A reinforcing shell is fixedly connected to the outer wall of the inlet pipe. A protective component is fixedly connected inside the inlet pipe. An interception component is provided on the inner wall of the inlet pipe.

[0007] As a further description of the above technical solution: The recycling mechanism includes a support plate, which is fixedly connected to the top of a support frame. A trapezoidal shell is fixedly connected to one side of the support plate. An anti-backflow component is provided on the inner wall of the trapezoidal shell. A second collection pipe is connected to the bottom of the trapezoidal shell. A waste discharge pipe is connected to the bottom of the second collection pipe. A sampling component is connected to the outer wall of the second collection pipe.

[0008] As a further description of the above technical solution: The deceleration assembly includes a docking layer, the outer wall of which is fixedly connected to the left side of the outer shell, and a connecting pipe is fixedly connected to one side of the docking layer.

[0009] As a further description of the above technical solution: The deceleration assembly also includes a sealing ring, which is fixedly connected to the bottom of the connecting pipe, and the outer wall of the sealing ring is connected to a collecting pipe.

[0010] As a further description of the above technical solution: The deceleration assembly also includes a spiral layer, and the inner wall of the connecting pipe is fixedly connected with the spiral layer.

[0011] As a further description of the above technical solution: The protective component includes a cross-shaped anti-vortex plate, which is fixedly connected to the left side of the inner wall of the inlet pipe, and a filter screen is fixedly connected to the middle of the inner wall of the inlet pipe.

[0012] As a further description of the above technical solution: The interception component includes a baffle plate, which is fixedly connected to the middle of the inner wall of the inlet pipe, and a collection port is provided in the middle of the inlet pipe.

[0013] As a further description of the above technical solution: The anti-backflow component includes a baffle plate, which is fixedly connected to the top of the inner wall of the trapezoidal shell, and a drop baffle is fixedly connected to the inner wall of the trapezoidal shell.

[0014] As a further description of the above technical solution: The sampling assembly includes a fixed tube, the outer wall of the second collection tube is connected to the fixed tube, and the outer wall of the fixed tube is connected to the valve.

[0015] The present invention has the following beneficial effects: 1. In this invention, a cross-shaped anti-vortex plate, a filter screen, and an impurity baffle are sequentially arranged inside the inlet pipe, forming a media self-circulation structure with the return pipe. The cross-shaped anti-vortex plate can eliminate the oil slurry feed vortex and avoid damage caused by bubbles carried by the vortex impacting the shell. The bottom baffle intercepts heavy coarse impurities in the pipe. The return high-pressure clean oil can not only increase the static pressure of the suction chamber and inhibit the vaporization and cavitation of the medium, but also continuously backwash the dirt accumulated on the surface of the filter screen, maintain the filter screen filtration throughput for a long time, and reduce the probability of equipment blockage and shell cavitation damage.

[0016] 2. In this invention, a connecting pipe with a built-in spiral layer is set in the oil slurry conveying path. The oil slurry flows in a circular spiral along the outer wall of the spiral layer. The solid particles in the oil slurry are peeled off by centrifugal separation. The particles sink down along the spiral structure and are introduced into the trapezoidal shell for centralized collection. This method separates solid impurities in the oil slurry in advance, effectively improves the purity of the oil slurry entering subsequent processes, reduces the wear of solid particles on core components such as motors and pipelines, and extends the service life of the whole machine.

[0017] 3. In this invention, the top of the trapezoidal shell is connected to the residue collection port of the inlet pipe, which simultaneously collects the residue intercepted by the inlet pipe and the solid particles separated by the spiral. The multi-layer baffles on the inner wall of the shell can decelerate the mixed residue fluid by turning it back multiple times, so that the residue can fully settle into the second collection pipe and be discharged through the waste discharge pipe. The outer side of the second collection pipe is equipped with a fixed pipe and a sampling valve, which can sample and test the discharged waste at any time. Attached Figure Description

[0018] Figure 1 This is a front perspective view of an oil slurry pump with a filtration function proposed in this invention; Figure 2 This is a right-side perspective view of an oil slurry pump with a filtration function proposed in this invention; Figure 3 This is a schematic diagram illustrating the structure of an installation mechanism for an oil slurry pump with a filtration function proposed in this invention. Figure 4 This is a partial structural diagram of the reduction gear assembly of an oil slurry pump with filtration function proposed in this invention; Figure 5 This is a schematic diagram of the filtration mechanism of an oil slurry pump with filtration function proposed in this invention. Figure 6 This is a cross-sectional view of the inlet pipe structure of an oil slurry pump with filtration function proposed in this invention. Figure 7 This is a partial structural diagram of the support plate of an oil slurry pump with filtration function proposed in this invention. Figure 8This is a partial cross-sectional view of the trapezoidal casing of an oil slurry pump with filtration function proposed in this invention.

[0019] Legend: 1. Outer shell; 2. Mounting mechanism; 201. Motor; 202. Drain pipe; 203. Base; 204. Reduction assembly; 2041. Connecting layer; 2042. Connecting pipe; 2043. Sealing ring; 2044. Collection pipe one; 2045. Spiral layer; 205. Support frame; 3. Filtration mechanism; 301. Return pipe; 302. Valve one; 303. Flange; 304. Inlet pipe; 305. Reinforced shell; 306. 1. Protective components; 3061. Cross-shaped anti-vortex plate; 3062. Filter screen; 307. Interception components; 3071. Baffle; 3072. Collection port; 4. Recycling mechanism; 401. Support plate; 402. Trapezoidal shell; 403. Anti-backflow components; 4031. Baffle plate; 4032. Drop baffle; 404. Collection pipe II; 405. Waste discharge pipe; 406. Sampling components; 4061. Fixed pipe; 4062. Valve II. Detailed Implementation

[0020] 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.

[0021] Please see the appendix Figure 1 - Appendix Figure 4 An embodiment of the present invention provides: an oil slurry pump with a filtration function, including a housing 1, an mounting mechanism 2 provided on the outer wall of the housing 1, a filtration mechanism 3 installed on the outer wall of the mounting mechanism 2, a recovery mechanism 4 provided on the left side of the housing 1, the mounting mechanism 2 including a motor 201, the motor 201 being located on the right side of the housing 1, a drain pipe 202 connected to the rear side of the outer wall of the housing 1, a base 203 fixedly connected to the outer wall of the housing 1, a reduction assembly 204 connected to the left side of the housing 1, and a support frame 205 fixedly connected to the bottom of the base 203; Specifically, an installation mechanism 2 is mounted on the outer wall of the outer casing 1. The installation mechanism 2 is arranged close to the outer wall of the outer casing 1, and a filter mechanism 3 is installed on its outer wall. The filter mechanism 3 cooperates and is fixed with the installation mechanism 2, allowing for stable assembly and operation. A recovery mechanism 4 is provided on the left side of the outer casing 1, corresponding to the working area on the left side of the equipment and adapted to the overall structure. The installation mechanism 2 is equipped with a motor 201, which is installed on the right side of the outer casing 1 to provide power for the operation of the equipment. A drain pipe 202 is connected to the rear side of the outer wall of the outer casing 1, and the drain pipe 202 passes through the internal cavity of the outer casing 1 to discharge the internal medium of the equipment. A base 203 is fixedly connected to the outer wall of the outer casing 1. The base 203 is installed close to the outer casing 1 and can support and position the equipment. A speed reduction assembly 204 is mounted and connected to the left end face of the outer casing 1. The speed reduction assembly 204 is connected to the internal transmission structure of the equipment and can adjust the operating speed to ensure stable operation of the equipment. The base 203 has a support frame 205 fixedly installed at the bottom. The two sets of support frames 205 are arranged symmetrically, which can stably support the overall equipment and ensure the stability of the equipment placement and operation.

[0022] Please see the appendix Figure 5 - Appendix Figure 6 The filter mechanism 3 includes a return pipe 301, which is connected to the outer wall of the drain pipe 202. A valve 302 is fixedly connected to the outer wall of the return pipe 301. A flange 303 is fixedly connected to one end of the valve 302. An inlet pipe 304 is threadedly connected to the bottom of the flange 303. A reinforcing shell 305 is fixedly connected to the outer wall of the inlet pipe 304. A protective component 306 is fixedly connected inside the inlet pipe 304. An interception component 307 is provided on the inner wall of the inlet pipe 304. Specifically, the return pipe 301 is connected to the outer wall of the drain pipe 202, forming a through-pipe structure that allows for media diversion and return circulation, enabling on-demand media return control. A valve 302 is fixedly mounted on the outer wall of the return pipe 301, fitting snugly against the outer wall to precisely control the flow rate and on / off status of the media within the return pipe 301, allowing for controllable adjustment of the pipeline's operating status. A flange 303 is fixedly connected to the end of the valve 302, providing a tight fit and serving as a connection, seal, and fixation, ensuring structural stability and sealing at the connection point. An inlet pipe 304 is threadedly connected to the bottom of the flange 303, facilitating easy disassembly, maintenance, and alignment of the inlet pipe 304, while ensuring a tight fit between the pipeline sections. A reinforcing shell 305 is fixedly connected to the outer wall of the inlet pipe 304. The reinforcing shell 305 wraps around and fits snugly against the critical stress areas of the outer wall of the inlet pipe 304, reinforcing and protecting the overall structure of the inlet pipe 304, and improving the overall structural strength and operational stability of the pipeline. A protective component 306 is fixedly connected inside the inlet pipe 304. The protective component 306 is embedded and fixed inside the inlet pipe 304, providing protection, noise reduction, and erosion prevention for the flow of media within the pipeline, protecting the internal structure of the pipeline. An interception component 307 is installed on the inner wall of the inlet pipe 304 corresponding to the media flow area. The interception component 307 is neatly arranged against the inner wall, effectively intercepting and filtering impurities and particulate matter in the media as it flows through the inlet pipe 304, preventing impurities from entering the downstream pipeline structure and ensuring the normal operation of the entire pipeline equipment.

[0023] Please see the appendix Figure 7 - Appendix Figure 8 The recycling mechanism 4 includes a support plate 401, which is fixedly connected to the top of the support frame 205. A trapezoidal shell 402 is fixedly connected to one side of the support plate 401. An anti-backflow component 403 is provided on the inner wall of the trapezoidal shell 402. A second collection pipe 404 is connected to the bottom of the trapezoidal shell 402. A waste discharge pipe 405 is connected to the bottom of the second collection pipe 404. A sampling component 406 is connected to the outer wall of the second collection pipe 404. Specifically, the support plate 401 is fixedly connected to the top of the support frame 205, arranged horizontally to provide stable load-bearing support for the equipment's supporting structure and improve the overall structural stability. A trapezoidal shell 402 is fixedly installed on the side of the support plate 401. The trapezoidal shell 402 adapts to the overall layout of the equipment and can form an independent flow-guiding and collection cavity. An anti-backflow component 403 is installed on the inner wall of the trapezoidal shell 402. This component adapts to the internal structure of the cavity and can effectively prevent the medium from flowing back, ensuring unidirectional flow of the medium, eliminating backflow and flooding problems, and ensuring stable operation of the equipment pipeline. A collection pipe 404 is connected through the bottom of the trapezoidal shell 402 to collect the medium and impurities inside the flow-guiding cavity. The bottom end of the collection pipe 404 is connected to the waste discharge pipe 405, which can uniformly transport and discharge the collected waste materials and waste media, completing the equipment's waste discharge operation. The outer wall of the collection pipe 404 is connected to a sampling component 406. The component is interconnected with the inside of the pipe, which can sample and test the flowing medium, making it convenient to monitor the medium status and equipment condition in real time and ensure the stable operation of the equipment.

[0024] Please see the appendix Figure 3 - Appendix Figure 4 The deceleration assembly 204 includes a docking layer 2041. The outer wall of the docking layer 2041 is fixedly connected to the left side of the outer shell 1. A connecting pipe 2042 is fixedly connected to one side of the docking layer 2041. A sealing ring 2043 is fixedly connected to the bottom of the connecting pipe 2042. A collection pipe 2044 is connected to the outer wall of the sealing ring 2043. A spiral layer 2045 is fixedly connected to the inner wall of the connecting pipe 2042. Specifically, the outer wall of the docking layer 2041 is fixedly attached to the left side of the outer shell 1, forming a stable assembly structure with the side wall of the outer shell 1. This structure serves as a transfer connection for pipeline docking, enabling pipeline connection and adaptation at the equipment side. A connecting pipe 2042 is fixedly mounted on the side of the docking layer 2041. The connecting pipe 2042 is fixedly positioned by the docking layer 2041 and serves to guide the medium and transfer the pipeline. A sealing ring 2043 is fixedly installed at the bottom of the connecting pipe 2042. The sealing ring 2043 fits snugly against the pipe opening, effectively improving the sealing performance at the pipeline docking point, preventing medium leakage, and ensuring the airtightness of the pipeline operation. A collection pipe 2044 is connected to the outer wall of the sealing ring 2043. The collection pipe 2044 is internally interconnected with the connecting pipe 2042, which helps to collect the medium flowing inside the guiding pipeline. The inner wall of the connecting pipe 2042 is fixedly fitted with a spiral layer 2045. The spiral layer 2045 is neatly arranged inside the pipe, which can change the medium flow path, regulate the medium flow rate, optimize the flow state of the medium inside the pipe, and improve the overall operation effect.

[0025] Please see the appendix Figure 5 - Appendix Figure 8The protective component 306 includes a cross-shaped anti-vortex plate 3061, which is fixedly connected to the left side of the inner wall of the inlet pipe 304. A filter screen 3062 is fixedly connected to the middle of the inner wall of the inlet pipe 304. The interception component 307 includes a baffle 3071, which is fixedly connected to the middle of the inner wall of the inlet pipe 304. A collection port 3072 is opened in the middle of the inlet pipe 304. The anti-backflow component 403 includes a baffle 4031, which is fixedly connected to the top of the inner wall of the trapezoidal shell 402. A descending baffle 4032 is fixedly connected to the inner wall of the trapezoidal shell 402. The sampling component 406 includes a fixed pipe 4061, which is connected to the outer wall of the second collection pipe 404. A valve 4062 is connected to the outer wall of the fixed pipe 4061. Specifically, the cross-shaped anti-vortex plate 3061 is firmly fixed to the left side of the inner wall of the inlet pipe 304. The plate is horizontally mounted inside the flow channel of the pipeline, effectively dispersing vortices and turbulent currents generated during high-speed media flow, stabilizing the overall flow state of the media inside the pipe, reducing operating losses and pipeline vibration caused by fluid turbulence, and ensuring stable media delivery. A filter screen 3062 is fixedly installed in the middle of the inner wall of the inlet pipe 304. The filter screen spans the entire flow cross-section of the pipeline, pre-intercepting various fine impurity particles mixed inside the media, effectively reducing the probability of subsequent pipeline components being blocked or worn by impurities, and extending the service life of the equipment. The interception component 307 has a built-in baffle 3071, which is stably fixed in the middle of the inner wall of the inlet pipe 304. Together with the filter screen 3062, it forms a double-layer progressive interception structure, significantly improving the impurity filtration effect. A collection port 3072, penetrating the pipe wall, is provided in the middle of the inlet pipe 304. Solid impurities blocked and retained by the baffle 3071 can be discharged outward through the collection port 3072, realizing centralized collection and subsequent treatment of impurities and preventing impurities from accumulating inside the pipe and affecting the flow of the medium. The anti-backflow component 403 includes a baffle 4031, which is fixedly installed at the top of the inner wall of the trapezoidal shell 402. It can effectively block the direct backflow of the medium by relying on the plate structure, and initially block the backflow path of the medium. A baffle 4032 is also fixedly installed inside the cavity of the trapezoidal shell 402. The baffle 4032 can further change the movement path of the backflow of the medium. Together with the baffle 4031, it forms a double anti-backflow structure, completely eliminating the problem of backflow and reverse flow of the medium, and continuously maintaining the unidirectional stable flow of the medium inside the cavity. The sampling assembly 406 is equipped with a fixed tube 4061. The outer wall of the collection tube 404 has a lateral opening that connects to the fixed tube 4061. The fixed tube 4061 serves as a dedicated transfer channel for media sampling, ensuring smooth flow of the sampling medium. A valve 4062 is installed on the outer wall of the fixed tube 4061. By controlling the opening and closing of the valve 4062, operators can precisely control the flow of the sampling channel, extract media samples from inside the pipeline as needed for testing and analysis, and monitor the equipment's operating status in real time.

[0026] Working principle: When in use, after starting the device, the slurry is injected into the outer shell 1 through the inlet pipe 304. The inner wall of the inlet pipe 304 is filtered by the filter screen 3062. The cross-shaped anti-vortex plate 3061 set before the filter screen 3062 prevents the slurry from generating vortices when it enters, thereby reducing the damage of the bubbles generated by the vortex to the outer shell 1. Inside the inlet pipe 304, the baffle 3071 blocks the heavier impurities at the bottom of the inlet pipe 304. A small portion of the high-pressure clean oil coming out of the outer shell 1 is reinjected into the inlet pipe 304 through the return pipe 301, which increases the overall static pressure of the suction chamber, raises the medium pressure, and moves away from the saturated vaporization pressure. At the same time, the return liquid can continuously flush the deposits on the surface of the filter screen 3062. After passing through the inlet pipe 304, the oil slurry passes through the connecting pipe 2042. Inside the connecting pipe 2042, a spiral layer 2045 is fixedly connected, allowing the oil slurry to enter in a ring along the outer wall of the spiral layer 2045. This causes the solid particles inside the oil slurry to fall downwards along the spiral and into the bottom collection pipe 2044. The oil slurry is then collected from the collection pipe 2044 into the trapezoidal shell 402, thus improving the purity of the oil slurry. The top of the trapezoidal shell 402 is aligned with the collection port 3072 to collect solid residue inside the inlet pipe 304. A multi-layer baffle plate 4031 is provided on the top of the inner wall of the trapezoidal shell 402, so that the residue hits the inclined baffle 3071, the fluid decelerates by turning back multiple times, and slides down to the second collection pipe 404 at the bottom of the tank, and then is discharged through the waste discharge pipe 405. The outer wall of the second collection pipe 404 is connected to the fixed pipe 4061 and the second valve 4062, which facilitates the sampling and testing of the waste discharged from the trapezoidal shell 402.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A slurry pump with a filtration function, comprising a housing (1), characterized in that: The outer wall of the outer shell (1) is provided with a mounting mechanism (2), the outer wall of the mounting mechanism (2) is provided with a filter mechanism (3), and the left side of the outer shell (1) is provided with a recycling mechanism (4). The mounting mechanism (2) includes a motor (201), which is located on the right side of the housing (1). A drain pipe (202) is connected to the rear side of the outer wall of the housing (1). A base (203) is fixedly connected to the outer wall of the housing (1). A speed reduction assembly (204) is connected to the left side of the housing (1). A support frame (205) is fixedly connected to the bottom of the base (203).

2. The slurry pump with filtration function according to claim 1, characterized in that: The filtration mechanism (3) includes a return pipe (301), which is connected to the outer wall of the drain pipe (202). A valve (302) is fixedly connected to the outer wall of the return pipe (301). A flange (303) is fixedly connected to one end of the valve (302). An inlet pipe (304) is threaded to the bottom of the flange (303). A reinforcing shell (305) is fixedly connected to the outer wall of the inlet pipe (304). A protective component (306) is fixedly connected inside the inlet pipe (304). An interception component (307) is provided on the inner wall of the inlet pipe (304).

3. The slurry pump with filtration function according to claim 1, characterized in that: The recycling mechanism (4) includes a support plate (401), which is fixedly connected to the top of the support frame (205). A trapezoidal shell (402) is fixedly connected to one side of the support plate (401). An anti-backflow component (403) is provided on the inner wall of the trapezoidal shell (402). A second collection pipe (404) is connected to the bottom of the trapezoidal shell (402). A waste discharge pipe (405) is connected to the bottom of the second collection pipe (404). A sampling component (406) is connected to the outer wall of the second collection pipe (404).

4. The slurry pump with filtration function according to claim 1, characterized in that: The deceleration assembly (204) includes a docking layer (2041), the outer wall of which is fixedly connected to the left side of the outer shell (1), and a connecting pipe (2042) is fixedly connected to one side of the docking layer (2041).

5. A slurry pump with a filtration function according to claim 4, characterized in that: The deceleration assembly (204) also includes a sealing ring (2043), which is fixedly connected to the bottom of the connecting pipe (2042), and the outer wall of the sealing ring (2043) is connected to a collecting pipe (2044).

6. A slurry pump with a filtration function according to claim 5, characterized in that: The inner wall of the connecting pipe (2042) is fixedly connected with a spiral layer (2045).

7. A slurry pump with filtration function according to claim 2, characterized in that: The protective component (306) includes a cross-shaped anti-vortex plate (3061), which is fixedly connected to the left side of the inner wall of the inlet pipe (304), and a filter screen (3062) is fixedly connected to the middle of the inner wall of the inlet pipe (304).

8. A slurry pump with filtration function according to claim 2, characterized in that: The interception component (307) includes a baffle (3071), which is fixedly connected to the middle of the inner wall of the inlet pipe (304), and the inlet pipe (304) has a collection port (3072) in the middle.

9. A slurry pump with a filtration function according to claim 3, characterized in that: The anti-backflow component (403) includes a baffle plate (4031), which is fixedly connected to the top of the inner wall of the trapezoidal shell (402), and a drop baffle plate (4032) is fixedly connected to the inner wall of the trapezoidal shell (402).

10. A slurry pump with a filtration function according to claim 3, characterized in that: The sampling assembly (406) includes a fixed tube (4061) connected to one side of the outer wall of the collection tube (404), and the outer wall of the fixed tube (4061) is connected to a valve (4062).

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