Efficient filtering and pumping device of horizontal centrifugal slurry pump

Abstract

The efficient filtering and pumping device of the horizontal centrifugal slurry pump comprises a pipe body and a flange plate, the flange plate is fixed to the end of the pipe body, an installation hole is formed in the flange plate, a fixing ring is installed in the center of the inner wall of the pipe body, a middle filter screen is installed on the inner side of the fixing ring, and a sealing ring is installed on the middle filter screen. A reinforcing rib plate is fixedly installed on one side of the fixing ring, a positioning hole is formed in the other side of the fixing ring, the inner wall of the positioning hole is connected with one end of a connecting rod, and a base ring is fixedly installed in the middle of the connecting rod. According to the efficient filtering and pumping device of the horizontal centrifugal slurry pump, novel structural design is adopted, large-size solid particles are intercepted in a graded mode through the multiple layers of filtering mechanisms, the filtering mechanisms can be conveniently disassembled and cleaned, meanwhile, a high-concentration solid-liquid mixed medium is dispersed through the dispersing mechanism, blockage caused by solid particle concentration is reduced, and the efficiency of the centrifugal slurry pump is improved. And structural abrasion caused by concentrated continuous impact of solid particles is reduced, and the conveying efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of horizontal centrifugal slurry pump technology, specifically a high-efficiency filtration and pumping device for a horizontal centrifugal slurry pump. Background Technology

[0002] Horizontal centrifugal slurry pumps are centrifugal pumps specifically designed for conveying high-concentration solid-liquid mixtures containing solid particles such as ores, gravel, slag, and tailings. Their core features are wear resistance, clogging resistance, and corrosion resistance, and they are widely used in mining, metallurgy, power, building materials, environmental protection and other industries.

[0003] While existing horizontal centrifugal slurry pumps can transport high-concentration solid-liquid mixtures containing solid particles, they are prone to clogging, wear, and efficiency reduction when the solid particles in the mixture are large or abundant. Therefore, a high-efficiency filtration and pumping device for horizontal centrifugal slurry pumps needs to be designed to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency filtration and pumping device for a horizontal centrifugal slurry pump, in order to solve the problems of clogging, wear and efficiency reduction that easily occur in existing devices when the solid particles in the solid-liquid mixed medium are large in size or have a high content, as mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency filtration and pumping device for a horizontal centrifugal slurry pump, comprising a pipe body, flanges at both ends of the pipe body, and mounting holes on the flanges;

[0006] The filter assembly includes a fixing ring installed at the center of the inner wall of the tube, a middle filter screen installed inside the fixing ring, a plurality of connecting rods circumferentially engaged with the side wall of the fixing ring, a plurality of base rings uniformly fixedly installed on the connecting rods, and side filter screens fixed inside the base rings; a sealing ring is fixed to the outer side of the base rings, the outer side of the sealing ring is in contact with the inner wall of the tube, and an operating ring assembly that can be detachably connected to the tube is fixed to the end of the connecting rod that is not connected to the fixing ring;

[0007] The diversion assembly includes a triangular rod fixedly disposed on the inner wall of the tube at one end away from the filter assembly, and a diversion cone fixedly disposed at the end of the triangular rod.

[0008] Furthermore, the fixing ring is fixedly connected to the inner wall of the tube by a reinforcing rib plate. The side of the fixing ring that connects to the connecting rod has a positioning hole that matches the connecting rod. The positioning hole and the connecting rod are engaged. The connecting rod is distributed at equal angles about the center of the base ring.

[0009] Furthermore, the base rings are evenly spaced, and the mesh diameter of the side filter screen inside the base rings decreases sequentially from the outside to the inside.

[0010] Furthermore, the operating ring assembly includes an operating ring, a through hole at the center of the operating ring, and a guide block fixed to the outer side of the operating ring. The guide block fits against the inner side of the guide groove. The guide groove is formed on the inner wall of the pipe body near the filter assembly and on the inner side of the flange connected to the same side.

[0011] Furthermore, the guide block and the guide groove are slidably connected, and the guide block is symmetrically distributed about the center of the operating ring.

[0012] Furthermore, the triangular rods are distributed at equal angles about the center of the diversion cone, the front view cross-section of the diversion cone is an isosceles acute triangle, and the outer diameter of the diversion cone at the end away from the center of the pipe body is less than 2 / 3 of the inner diameter of the pipe body.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the high-efficiency filtration and pumping device of the horizontal centrifugal slurry pump adopts a new structural design, which classifies and intercepts larger solid particles through a multi-layer filtration mechanism, and the filtration mechanism can be easily disassembled and cleaned. At the same time, the high-concentration solid-liquid mixture is dispersed through a dispersion mechanism, which reduces the blockage caused by the concentration of solid particles and also reduces the structural wear caused by the continuous impact of the concentration of solid particles, thus ensuring the conveying efficiency.

[0014] 1. Large solid particles of different diameters are graded and intercepted by middle and side filters with different mesh diameters, avoiding large solid particles from remaining in the same position, ensuring the passage of solid-liquid mixture, and the side filters can be easily disassembled and cleaned, and the middle filters can also be easily cleaned, making maintenance convenient;

[0015] 2. The solid-liquid mixture is dispersed by a medium filter screen, and then further guided and dispersed by a triangular rod and a diverting cone. This prevents solid particles in the solid-liquid mixture from concentrating and impacting the internal components of the horizontal centrifugal slurry pump, further reducing clogging and wear. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the side cross-sectional structure of the base ring of this utility model;

[0019] Figure 4 This is a side view of the triangular rod and the diversion cone of this utility model.

[0020] In the diagram: 1. Pipe body; 2. Flange; 3. Mounting hole; 4. Fixing ring; 5. Middle filter screen; 6. Reinforcing rib plate; 7. Positioning hole; 8. Connecting rod; 9. Base ring; 10. Sealing ring; 11. Side filter screen; 12. Operating ring; 13. Through hole; 14. Guide block; 15. Guide groove; 16. Triangular rod; 17. Diverting cone. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a high-efficiency filtration and pumping device for a horizontal centrifugal slurry pump, comprising a pipe body 1, a flange 2, a mounting hole 3, a fixing ring 4, a middle filter screen 5, a reinforcing rib 6, a positioning hole 7, a connecting rod 8, a base ring 9, a sealing ring 10, a side filter screen 11, an operating ring 12, a through hole 13, a guide block 14, a guide groove 15, a triangular rod 16, and a diversion cone 17. The flange 2 is fixed to the end of the pipe body 1, and the flange 2 has a mounting hole 3. A fixing ring 4 is installed at the center of the inner wall of the pipe body 1, and a middle filter screen is installed inside the fixing ring 4. 5. A reinforcing rib plate 6 is fixedly installed on one side of the fixing ring 4. A positioning hole 7 is opened on the other side of the fixing ring 4. The inner wall of the positioning hole 7 is connected to one end of the connecting rod 8. A base ring 9 is fixedly installed in the middle of the connecting rod 8. A sealing ring 10 is fixed on the outer side of the base ring 9. The outer side of the sealing ring 10 is in contact with the inner wall of the pipe body 1. A side filter screen 11 is fixed on the inner side of the base ring 9. An operating ring 12 is fixed at the other end of the connecting rod 8. A through hole 13 is provided in the center of the operating ring 12. A triangular rod 16 is fixed at the other end of the inner wall of the pipe body 1. The end of the triangular rod 16 is connected and fixed to the edge of one end of the diversion cone 17.

[0023] In this example, the positioning hole 7 and the connecting rod 8 are engaged. The connecting rod 8 is distributed at equal angles about the center of the base ring 9. The above structural design allows the base ring 9 to be stably installed by aligning and connecting the positioning hole 7 and the connecting rod 8.

[0024] The base rings 9 are evenly spaced, and the mesh diameter of the side filters 11 inside the base rings 9 decreases from the outside to the inside. The above structural design enables multiple side filters 11 to classify and retain large solid particles of different diameters, avoiding large solid particles from being left in the same position.

[0025] A guide block 14 is fixed on the outer side of the operating ring 12. The guide block 14 fits against the inner side of the guide groove 15. The guide groove 15 is opened on the inner wall of one end of the pipe body 1 and the inner side of the flange 2 connected to one end of the pipe body 1. The above structural design facilitates the quick alignment and installation of the connecting rod 8 and the positioning hole 7, and also facilitates the disassembly and cleaning of the connecting rod 8, the base ring 9, the side filter screen 11 and the operating ring 12 as a whole.

[0026] The guide block 14 and the guide groove 15 are slidably connected. The guide block 14 is symmetrically distributed about the center of the operating ring 12. The above structural design allows the operating ring 12 to slide along the guide groove 15 with the guide block 14, enabling quick installation and disassembly.

[0027] The triangular rods 16 are distributed at equal angles to the center of the diversion cone 17. The front view cross-section of the diversion cone 17 is an isosceles acute triangle. The outer diameter of the diversion cone 17 away from the center of the pipe body 1 is less than 2 / 3 of the inner diameter of the pipe body 1. The above structural design can guide and divert the filtered high-concentration solid-liquid mixed medium, and avoid the solid particles in the solid-liquid mixed medium from concentrating and impacting the internal components of the horizontal centrifugal slurry pump.

[0028] Working principle: During installation, the bolts and mounting holes 3 are used to connect the components. Figure 1 The flange 2 at the left end of the middle pipe body 1 is connected to the input flange of the horizontal centrifugal slurry pump, and the flange 2 at the right end of the pipe body 1 is connected to the solid-liquid mixed medium conveying pipeline.

[0029] Solid-liquid mixture is transported through pipeline from Figure 1 The medium enters from the right end of the central tube 1, passes through the through hole 13, and then passes through multiple side filters 11 in sequence. The side filters 11 with progressively smaller mesh diameters classify and trap large solid particles of different diameters. The solid-liquid mixture continues to flow, passes through the central filter 5, is dispersed by the central filter 5, and then flows to the tip of the diversion cone 17. It flows along the outer surface of the diversion cone 17 and disperses to the inner wall of the tube 1, slowing down the flow rate and preventing solid particles from accumulating. The solid-liquid mixture then enters the horizontal centrifugal slurry pump for normal pumping.

[0030] During cleaning, simply remove the pipe body 1 and flange 2 as a whole, and use the operating ring 12 to pull out the connecting rod 8, base ring 9, sealing ring 10 and side filter screen 11 for cleaning. Then clean the middle filter screen 5, triangular rod 16 and diversion cone 17. After that, insert the connecting rod 8, base ring 9, sealing ring 10, side filter screen 11 and operating ring 12 back into place. Finally, reinstall the entire device and it can be used again. This is the working principle of the high-efficiency filtration pumping device of the horizontal centrifugal slurry pump.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency filtration and pumping device for a horizontal centrifugal slurry pump, characterized in that, include: The pipe body has flanges at both ends, and mounting holes are provided on the flanges; The filter assembly includes a fixing ring installed at the center of the inner wall of the tube, a middle filter screen installed inside the fixing ring, a plurality of connecting rods circumferentially engaged with the side wall of the fixing ring, a plurality of base rings uniformly fixedly installed on the connecting rods, and side filter screens fixed inside the base rings; a sealing ring is fixed to the outer side of the base rings, the outer side of the sealing ring is in contact with the inner wall of the tube, and an operating ring assembly that can be detachably connected to the tube is fixed to the end of the connecting rod that is not connected to the fixing ring; The diversion assembly includes a triangular rod fixedly disposed on the inner wall of the tube at one end away from the filter assembly, and a diversion cone fixedly disposed at the end of the triangular rod.

2. The high-efficiency filtration and pumping device for a horizontal centrifugal slurry pump according to claim 1, characterized in that: The fixing ring is fixedly connected to the inner wall of the tube by a reinforcing rib plate. The side of the fixing ring that connects to the connecting rod has a positioning hole that matches the connecting rod. The positioning hole and the connecting rod are engaged. The connecting rod is distributed at equal angles about the center of the base ring.

3. The high-efficiency filtration and pumping device for a horizontal centrifugal slurry pump according to claim 1, characterized in that: The base rings are evenly spaced, and the mesh diameter of the side filter screen inside the base rings decreases sequentially from the outside to the inside.

4. The high-efficiency filtration and pumping device for a horizontal centrifugal slurry pump according to claim 1, characterized in that: The operating ring assembly includes an operating ring, a through hole at the center of the operating ring, and a guide block fixed to the outer side of the operating ring. The guide block fits against the inner side of the guide groove. The guide groove is formed on the inner wall of the pipe body near the filter assembly and on the inner side of the flange connected to the same side.

5. The high-efficiency filtration and pumping device for a horizontal centrifugal slurry pump according to claim 4, characterized in that: The guide block and the guide groove are slidably connected, and the guide block is symmetrically distributed about the center of the operating ring.

6. The high-efficiency filtration and pumping device for a horizontal centrifugal slurry pump according to claim 1, characterized in that: The triangular rods are distributed at equal angles about the center of the diversion cone. The front view cross-section of the diversion cone is an isosceles acute triangle. The outer diameter of the diversion cone at the end away from the center of the pipe body is less than 2 / 3 of the inner diameter of the pipe body.

Images