Submersible slurry pump for conveying high-concentration solid particles and liquid

Abstract

The utility model relates to the technical field of concrete production equipment, and discloses a submersible slurry pump for conveying high-concentration solid particles and liquid, the submersible slurry pump comprises a pump shell and a mounting block, an impeller is fixedly mounted on the outer surface of the mounting block, and wear-resistant coatings are sprayed on the inner wall of the pump shell and the outer surface of the impeller. According to the submersible slurry pump for conveying the high-concentration solid particles and liquid, the pump shell, the impeller, the wear-resistant coating, the wear-resistant pipe and other components are arranged, the wear-resistant coating is sprayed on the surfaces of the pump shell and the impeller, ceramic coatings are selected, and the submersible slurry pump has the advantages of being high in hardness, good in wear resistance, high in chemical stability and the like; the bent pipe, the discharging pipe and the connecting pipe are fixed through the flanges and the bolts, impact and abrasion of materials can be effectively borne through the abrasion-resistant pipe made of the abrasion-resistant composite steel plate, and therefore abrasion of the pump shell, the impeller and the conveying pipe can be effectively reduced, and the service life of the pump is prolonged.

Description

Technical Field

[0001] This application relates to the field of concrete production equipment technology, specifically a submersible slurry pump for conveying high-concentration solid particles and liquids. Background Technology

[0002] Submersible slurry pumps are devices used to transport abrasive slurries containing solid particles. These devices can be widely used in industries such as mining, power, metallurgy, coal, and environmental protection to transport abrasive slurries containing solid particles. Currently, most mainstream slurry pumps on the market adopt a centrifugal structure. Their working principle is to transport the mixture of liquid and solid particles to the target location through the high-speed rotation of the impeller.

[0003] However, it has been found in existing submersible slurry pumps that when conveying concrete slurry, due to the high viscosity and hardness of the concrete slurry, existing technologies usually use dual-channel impellers or spiral impellers. However, the impeller design is difficult to balance conveying efficiency and wear resistance. During the material conveying process, the impeller will impact the pump casing and internal components and the discharge pipe, resulting in severe wear and a short service life of the pump. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a submersible slurry pump for conveying high-concentration solid particles and liquids. It has advantages such as effectively reducing wear on the pump casing, impeller, and conveying pipe, and extending the service life of the pump. It solves the problem that during material conveying, materials collide with the pump casing and internal components and the discharge pipe, causing severe wear and resulting in a short service life of the pump.

[0005] To achieve the above objectives, this application provides the following technical solution: a submersible slurry pump for conveying high-concentration solid particles and liquids, comprising a pump casing and a mounting block, wherein an impeller is fixedly mounted on the outer surface of the mounting block, and the inner wall of the pump casing and the outer surface of the impeller are both coated with a wear-resistant coating, an inlet is fixedly connected to the bottom surface of the pump casing, a discharge pipe is fixedly connected to the outer surface of the pump casing, a bend is fixedly mounted on the left end of the discharge pipe, a connecting pipe is fixedly mounted on the top end of the bend, and a wear-resistant pipe is fixedly mounted on the inner wall of the bend, wherein the wear-resistant pipe is made of wear-resistant composite steel plate.

[0006] To effectively reduce wear on the conveying pipe, pump body, and internal components, and improve the pump's service life, the impeller is mounted on the outer surface of the mounting block. A wear-resistant coating, preferably a ceramic coating, is sprayed onto the inner wall of the pump casing and the outer surface of the impeller to form a uniform coating. The ceramic coating offers advantages such as high hardness, good wear resistance, and strong chemical stability. A bend is then installed at the left end of the pump casing's discharge pipe, and a connecting pipe is installed at the top of the bend, both secured with flanges and bolts. During installation, the wear-resistant pipe inside the bend is fitted against the inner walls of the discharge pipe and the connecting pipe, allowing the wear-resistant pipe to enter the interior of both. The wear-resistant pipe is made of wear-resistant composite steel plate, constructed from common low-carbon steel and other materials, effectively withstanding material impact and wear. This device effectively reduces wear on the pump casing, impeller, and conveying pipe, thus extending the pump's service life.

[0007] Furthermore, a mounting shell is fixedly connected to the upper surface of the pump housing, a bearing is fixedly installed on the inner wall of the mounting shell, a connecting rod is fixedly connected to the top of the mounting block, and the outer surface of the connecting rod is installed with the inner wall of the bearing.

[0008] The above method fixes the mounting shell to the upper surface of the pump casing, installs the bearing on the inner wall of the mounting shell, fixes the connecting rod to the top of the mounting block, and connects the bearing to the connecting rod. The bearing can support and limit the connecting rod, ensuring the stability of the connecting rod when it rotates.

[0009] Furthermore, a limiting disk is rotatably connected to the outer surface of the connecting rod, and the outer surface of the limiting disk is fixedly connected to the inner wall of the mounting shell.

[0010] The above scheme involves installing a limiting disc on the outer surface of the connecting rod, setting it as a rotatable connection, and fixing the surface of the limiting disc to the inner wall of the mounting shell. The limiting disc limits the connecting rod, allowing the upper part of the connecting rod to rotate stably. Furthermore, the top of the connecting rod is rotatably connected to the inner top wall of the mounting shell, enabling the connecting rod to drive the mounting block and impeller to rotate, thereby achieving material transfer.

[0011] Furthermore, the inner top wall of the mounting shell is fixedly connected with equidistantly arranged fixing rods, wherein planetary gears are rotatably connected to the outer surfaces of two of the fixing rods.

[0012] The above scheme involves installing the fixing rods on the inner top wall of the mounting housing for a fixed connection, and installing planetary gears on the surfaces of two of the fixing rods for a rotating connection to limit the movement of the planetary gears.

[0013] Furthermore, a gear is fixedly connected to the outer surface of the connecting rod, and the outer surface of each planetary gear meshes with the outer surface of the gear.

[0014] The above scheme involves mounting gear one on the outer surface of the connecting rod as a fixed connection, and connecting planetary gears to gear one. The planetary gears enhance the stability of gear one during rotation, thereby further improving the stability of the connecting rod.

[0015] Furthermore, the outer surface of gear one is meshed with gear two, and the inner wall of gear two is rotatably connected to the outer surface of the corresponding fixed rod.

[0016] With the above scheme, gear two is placed on the side of gear one, and gear one is connected to gear two. Gear two is connected to another fixed rod, and the connection is set as a rotatable connection. The rotation of gear two allows gear one to rotate.

[0017] Furthermore, a motor housing is fixedly connected to the outer surface of the mounting housing, and a drive motor is fixedly installed on the inner wall of the motor housing.

[0018] The above method involves mounting the motor housing on the outer surface of the mounting housing for a fixed connection, and mounting the drive motor on the inner wall of the motor housing, thereby achieving the effect of positioning and installing the drive motor.

[0019] Furthermore, the output shaft of the drive motor is fixedly connected to a third gear, and the outer surface of the third gear meshes with the outer surface of the second gear.

[0020] With the above scheme, gear three is fixed on the output shaft of the drive motor, and the surface of gear three is connected to gear two. The drive motor drives gear three to rotate, which in turn causes gear two to rotate, thus realizing transmission. When the pump starts up or encounters a sudden high resistance, it will generate a large impact load. The gear assembly in the transmission can absorb and disperse the impact load to a certain extent, protecting the motor from damage caused by these instantaneous high torques.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This submersible slurry pump is used to transport high-concentration solid particles and liquids. It comprises a pump casing, impeller, wear-resistant coating, and wear-resistant pipe. The wear-resistant coating, made of ceramic, is sprayed onto the surface of the pump casing and impeller, offering advantages such as high hardness, good wear resistance, and strong chemical stability. The wear-resistant pipe is connected to the discharge pipe and connecting pipe, and the bend is fixed to these pipes using flanges and bolts. The wear-resistant pipe, made of wear-resistant composite steel plate, effectively withstands the impact and wear of materials, thereby reducing wear on the pump casing, impeller, and conveying pipe, and extending the pump's service life. Gears three, two, and one drive the connecting rod to rotate, while planetary gears ensure the stability of gear one's rotation. When the pump starts up or encounters sudden high resistance, it generates a large impact load. The gear assembly can absorb and disperse this impact load to a certain extent, protecting the motor from damage caused by these instantaneous high torques. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is the overall main view structure diagram of this application;

[0025] Figure 3 This is a structural diagram showing the connection relationship between the bend and the connecting pipe in this application;

[0026] Figure 4 This is a structural diagram showing the connection relationship between the bend and the wear-resistant pipe in this application;

[0027] Figure 5 This is a structural diagram showing the connection relationship between gear one and gear two in this application.

[0028] In the picture:

[0029] 1. Pump casing; 2. Mounting block; 3. Impeller; 4. Wear-resistant coating; 5. Inlet; 6. Discharge pipe; 7. Bend; 8. Connecting pipe; 9. Wear-resistant pipe; 10. Mounting housing; 11. Bearing; 12. Connecting rod; 13. Limiting plate; 14. Gear 1; 15. Fixing rod; 16. Planetary gear; 17. Gear 2; 18. Motor housing; 19. Drive motor; 20. Gear 3. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 2 , Figure 3 and Figure 4 This embodiment describes a submersible slurry pump for conveying high-concentration solid particles and liquids, comprising a pump casing 1 and a mounting block 2. An impeller 3 is fixedly mounted on the outer surface of the mounting block 2. Both the inner wall of the pump casing 1 and the outer surface of the impeller 3 are coated with a wear-resistant coating 4. A feed inlet 5 is fixedly connected to the bottom surface of the pump casing 1. A discharge pipe 6 is fixedly connected to the outer surface of the pump casing 1. A bend 7 is fixedly mounted on the left end of the discharge pipe 6. A connecting pipe 8 is fixedly mounted on the top end of the bend 7. A wear-resistant pipe 9 is fixedly mounted on the inner wall of the bend 7. The wear-resistant pipe 9 is made of wear-resistant composite steel plate.

[0032] Please see Figure 1 , Figure 4 and Figure 5 A mounting shell 10 is fixedly connected to the upper surface of the pump housing 1. A bearing 11 is fixedly installed on the inner wall of the mounting shell 10. A connecting rod 12 is fixedly connected to the top of the mounting block 2. The outer surface of the connecting rod 12 is installed on the inner wall of the bearing 11. The mounting shell 10 is fixed to the upper surface of the pump housing 1, and the bearing 11 is installed on the inner wall of the mounting shell 10. The connecting rod 12 is fixed to the top of the mounting block 2, and the bearing 11 is connected to the connecting rod 12. The bearing 11 can support and limit the connecting rod 12, ensuring the stability of the connecting rod 12 when it rotates.

[0033] Please see Figure 5 The outer surface of the connecting rod 12 is rotatably connected to the limiting disk 13. The outer surface of the limiting disk 13 is fixedly connected to the inner wall of the mounting shell 10. The limiting disk 13 is installed on the outer surface of the connecting rod 12 and is configured as a rotatable connection. The surface of the limiting disk 13 is fixed to the inner wall of the mounting shell 10. The limiting disk 13 is used to limit the connecting rod 12, so that the upper part of the connecting rod 12 can rotate stably. The top of the connecting rod 12 is rotatably connected to the inner top wall of the mounting shell 10, so that the connecting rod 12 can drive the mounting block 2 and the impeller 3 to rotate, thereby realizing the material transfer.

[0034] Please see Figure 5 The inner top wall of the mounting shell 10 is fixedly connected with fixed rods 15 arranged at equal intervals. Planetary gears 16 are rotatably connected to the outer surfaces of two of the fixed rods 15. The fixed rods 15 are installed on the inner top wall of the mounting shell 10 for fixed connection, and planetary gears 16 are installed on the surfaces of two of the fixed rods 15 for rotatable connection, thereby limiting the movement of the planetary gears 16.

[0035] Please see Figure 5A gear 14 is fixedly connected to the outer surface of the connecting rod 12. The outer surface of each planetary gear 16 meshes with the outer surface of the gear 14. The gear 14 is installed on the outer surface of the connecting rod 12 and is set as a fixed connection. The planetary gears 16 are connected to the gear 14. The planetary gears 16 can improve the stability of the gear 14 when it rotates, thereby further improving the stability of the connecting rod 12.

[0036] Please see Figure 5 Gear 14 has a gear 2 17 meshing on its outer surface. The inner wall of gear 2 17 is rotatably connected to the outer surface of the corresponding fixed rod 15. Gear 2 17 is placed on the side of gear 14 and connected to gear 14. Gear 2 17 is connected to another fixed rod 15 and configured as a rotatable connection. The rotation of gear 2 17 allows gear 14 to rotate.

[0037] Please see Figure 2 , Figure 4 and Figure 5 A motor housing 18 is fixedly connected to the outer surface of the mounting housing 10, and a drive motor 19 is fixedly installed on the inner wall of the motor housing 18. The motor housing 18 is installed on the outer surface of the mounting housing 10 for a fixed connection, and the drive motor 19 is installed on the inner wall of the motor housing 18 to achieve the positioning and installation effect of the drive motor 19.

[0038] Please see Figure 5 The output shaft of the drive motor 19 is fixedly connected to a gear 20. The outer surface of the gear 20 meshes with the outer surface of the gear 17. The gear 20 is fixed on the output shaft of the drive motor 19, and the surface of the gear 20 is connected to the gear 17. The drive motor 19 drives the gear 20 to rotate, which in turn causes the gear 17 to rotate, thus realizing transmission. When the pump starts up or encounters a sudden high resistance, it will generate a large impact load. The gear assembly in the transmission can absorb and disperse the impact load to a certain extent, protecting the motor from damage caused by these instantaneous high torques.

[0039] This embodiment describes a submersible slurry pump for conveying high-concentration solid particles and liquids. It comprises a pump casing 1, impeller 3, wear-resistant coating 4, and wear-resistant pipe 9. The wear-resistant coating 4, made of ceramic, is sprayed onto the surfaces of the pump casing 1 and impeller 3, offering advantages such as high hardness, good wear resistance, and strong chemical stability. The wear-resistant pipe 9 is connected to the discharge pipe 6 and connecting pipe 8. A bend 7 is fixed to the discharge pipe 6 and connecting pipe 8 using flanges and bolts. The wear-resistant pipe 9, made of wear-resistant composite steel plate, effectively withstands the impact and wear of materials, thereby reducing wear on the pump casing 1, impeller 3, and conveying pipe, and extending the pump's service life. Gears 3 (20), 2 (17), and 14 drive the connecting rod 12 to rotate. Planetary gears 16 ensure the stability of gear 14's rotation. When the pump starts or encounters sudden high resistance, it generates a large impact load. The gear assembly can absorb and disperse this impact load to a certain extent, protecting the motor from damage caused by these instantaneous high torques.

[0040] It should be noted that the wear-resistant pipe 9, made of wear-resistant composite steel plate, has a relatively simpler production process compared to wear-resistant liners made of high chromium alloy, and does not require a high level of technology or production cost.

[0041] The working principle of the above embodiments is as follows:

[0042] When the pump is in use, the wear-resistant coating 4, which is coated with ceramic coating on the surface of the pump casing 1 and impeller 3, has the advantages of high hardness, good wear resistance and strong chemical stability. The bend 7 is fixed to the discharge pipe 6 and the connecting pipe 8 by flanges and bolts. At this time, the wear-resistant pipe 9 is connected to the discharge pipe 6 and the connecting pipe 8. The wear-resistant pipe 9, made of wear-resistant composite steel plate, can effectively withstand the impact and wear of the material, effectively reduce the wear of the pump casing 1, impeller 3 and conveying pipe, and improve the service life of the pump. The drive motor 19 drives the gear 3 20 to rotate, and the gear 3 20 drives the gear 2 17 to rotate. The gear 2 17 is connected to the gear 1 14, so that the gear 1 14 is connected to the planetary gear 16. At this time, the connecting rod 12 drives the mounting block 2 and the impeller 3 to rotate, realizing the rotation of the impeller 3. When the pump starts or encounters a sudden high resistance, a large impact load will be generated. The gear assembly can absorb and disperse the impact load to a certain extent, protecting the drive motor 19 from damage caused by these instantaneous high torques.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A submersible slurry pump for conveying high-concentration solid particles and liquids, comprising a pump casing (1) and a mounting block (2), characterized in that: An impeller (3) is fixedly installed on the outer surface of the mounting block (2). The inner wall of the pump casing (1) and the outer surface of the impeller (3) are both coated with a wear-resistant coating (4). The bottom surface of the pump casing (1) is fixedly connected to the feed inlet (5). The outer surface of the pump casing (1) is fixedly connected to the discharge pipe (6). A bend (7) is fixedly installed at the left end of the discharge pipe (6). A connecting pipe (8) is fixedly installed at the top end of the bend (7). A wear-resistant pipe (9) is fixedly installed on the inner wall of the bend (7). The wear-resistant pipe (9) is made of wear-resistant composite steel plate.

2. A submersible slurry pump for conveying high-concentration solid particles and liquids according to claim 1, characterized in that: The upper surface of the pump housing (1) is fixedly connected to the mounting shell (10), and the inner wall of the mounting shell (10) is fixedly installed with the bearing (11). The top end of the mounting block (2) is fixedly connected to the connecting rod (12), and the outer surface of the connecting rod (12) is installed with the inner wall of the bearing (11).

3. A submersible slurry pump for conveying high-concentration solid particles and liquids according to claim 2, characterized in that: The outer surface of the connecting rod (12) is rotatably connected to the limiting disk (13), and the outer surface of the limiting disk (13) is fixedly connected to the inner wall of the mounting shell (10).

4. A submersible slurry pump for conveying high-concentration solid particles and liquids according to claim 2, characterized in that: The inner top wall of the mounting shell (10) is fixedly connected with fixed rods (15) arranged at equal intervals, wherein the outer surfaces of two of the fixed rods (15) are rotatably connected with planetary gears (16).

5. A submersible slurry pump for conveying high-concentration solid particles and liquids according to claim 4, characterized in that: The outer surface of the connecting rod (12) is fixedly connected to a gear (14), and the outer surface of each planetary gear (16) meshes with the outer surface of the gear (14).

6. A submersible slurry pump for conveying high-concentration solid particles and liquids according to claim 5, characterized in that: The outer surface of gear one (14) is meshed with gear two (17), and the inner wall of gear two (17) is rotatably connected to the outer surface of the corresponding fixed rod (15).

7. A submersible slurry pump for conveying high-concentration solid particles and liquids according to claim 2, characterized in that: The outer surface of the mounting housing (10) is fixedly connected to the motor housing (18), and the inner wall of the motor housing (18) is fixedly installed with the drive motor (19).

8. A submersible slurry pump for conveying high-concentration solid particles and liquids according to claim 7, characterized in that: The output shaft of the drive motor (19) is fixedly connected to a gear three (20), and the outer surface of the gear three (20) meshes with the outer surface of the gear two (17).

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