A pipeline type slurry pump

Abstract

The utility model provides pipeline type slag slurry pump relates to the technical field of slag slurry pump, including pump body and motor, the inside of pump body has the passageway for the slag slurry circulation, and the both ends of pump body are equipped with the feed end and the discharge end respectively with passageway intercommunication, the inside of pump body still is provided with the installation cavity with passageway intercommunication, and the installation cavity is provided with the impeller, the top of pump body still is provided with transmission part, and the top of transmission part is installed with support piece, the motor is installed at the top of support piece, and motor drives the impeller rotation through transmission part, is used for the slag slurry by feed end suction and flows through the passageway after by discharge end discharge, compared with prior art, the utility model adopts vertical pipeline pump structure, is applicable to the secondary pressurization of pipeline, has the outstanding advantages such as vertical installation, compact structure, small floor space, convenient installation, and further is advantageous to the efficient conveying of slag slurry.

Description

Technical Field

[0001] This utility model relates to the field of slurry pump technology, and in particular to a pipeline slurry pump. Background Technology

[0002] Currently, there are pipeline centrifugal pumps on the market for pumping clean water. Their bearings are designed for light-load conditions, and they are made of cast iron or stainless steel. The sealing structure is mostly a single-end mechanical seal for clean water. Therefore, pipeline centrifugal pumps can only be used for light-load conditions involving the transport of clean liquids. However, for heavy-load conditions involving the pumping of liquids containing solid particles, slurry pumps are required. But most slurry pumps on the market are horizontal, which have disadvantages such as large footprint and inconvenient pipeline installation, hindering efficient slurry transport. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model proposes a pipeline slurry pump.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A pipeline slurry pump includes a pump body and a motor. The pump body has an internal channel for slurry flow, and the pump body has an inlet end and an outlet end communicating with the channel at both ends. The pump body also has an installation cavity communicating with the channel, and an impeller is installed in the installation cavity. The top of the pump body also has a transmission part, and a support member is installed on the top of the transmission part. The motor is installed on the top of the support member, and the motor drives the impeller to rotate through the transmission part, so as to draw slurry in from the inlet end, let it flow through the channel, and then discharge it from the outlet end.

[0006] Preferably, the transmission part includes a bearing housing mounted on the top of the pump body and a transmission shaft vertically disposed inside the bearing housing. The top and bottom ends of the bearing housing are respectively provided with cylindrical roller bearings and angular contact bearings for mounting and fixing the transmission shaft. A pump coupling is mounted on the top end of the transmission shaft, and the bottom end of the transmission shaft extends into the mounting cavity. The impeller is fitted onto the bottom end of the transmission shaft, and an impeller nut for fixing the impeller is screwed onto the bottom end of the transmission shaft. A motor coupling that cooperates with the pump coupling is mounted on the main shaft of the motor. The transmission shaft passes through the cylindrical roller bearings and angular contact bearings sequentially from top to bottom. A clamping member for fixing the cylindrical roller bearings and angular contact bearings is also provided on the bearing housing.

[0007] Preferably, the clamping component includes an upper bearing cap detachably mounted on the top of the bearing housing and a lower bearing cap detachably mounted inside the bearing housing. The upper bearing cap is clamped to the top of the cylindrical roller bearing, and the lower bearing cap is clamped to the bottom of the angular contact bearing. The pump coupling is located above the upper bearing cap.

[0008] Preferably, the top of the pump body is further provided with a mechanical seal pump cover that seals the mounting cavity, and a mechanical seal that seals the drive shaft with the mechanical seal pump cover is installed on the mechanical seal pump cover. The mechanical seal is located inside the bearing body, and the bottom of the bearing body presses against the top of the mechanical seal pump cover.

[0009] Preferably, the support includes a motor mount that can be detachably mounted on top of the bearing body, the motor being detachably mounted on the top of the motor mount, and the interior of the motor mount being hollowed out to form a cavity, wherein the upper bearing cover, the pump coupling, and the motor coupling are all located within the cavity.

[0010] Preferably, the bearing housing is further provided with an oil retaining ring fitted on the drive shaft, and the oil retaining ring is located at the bottom of the cylindrical roller bearing.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The structure adopts a vertical pipeline pump structure, and the lower bearing adopts back-to-back diagonal contact bearings, which can bear heavy axial and radial forces. The upper bearing adopts cylindrical roller bearings, so that the entire transmission part can be used for heavy-duty working conditions, which facilitates efficient transportation of slurry.

[0013] 2. The flow passage inside the pump body is designed according to the requirements of slurry pump. The flow passage is wide and suitable for solid particles to pass through. The material is selected as wear-resistant metal material, and corrosion-resistant material can also be selected according to the medium. The wear resistance requirements of slurry pump are fully considered, which increases the overall wall thickness and is suitable for conveying slurry liquids.

[0014] 3. The sealing of this utility model is selected by double-end mechanical seal or packing seal, so that the slurry pump is suitable for conveying slurry liquids;

[0015] In summary, this utility model is particularly suitable for secondary pressurization of pipelines, and has significant advantages such as vertical installation, compact structure, small footprint, and convenient installation, which is conducive to the efficient transportation of slurry. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2This is a schematic diagram of the structure when the bearing body and the pump coupling of this utility model are connected;

[0019] Figure 3 This is a schematic diagram of the structure when the mechanical seal and the mechanical seal pump cover of this utility model are connected.

[0020] In the diagram: 1. Pump body; 2. Impeller; 3. Mechanical seal pump cover; 4. Mechanical seal; 5. Bearing housing; 6. Upper bearing cover; 7. Pump coupling; 8. Motor; 9. Motor coupling; 10. Motor base; 11. Cylindrical roller bearing; 12. Oil retainer ring; 13. Angular contact bearing; 14. Lower bearing cover; 15. Impeller nut; 16. Drive shaft. 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] like Figure 1 As shown, a pipeline slurry pump includes a pump body 1 and a motor 8. The pump body 1 has an internal channel for slurry flow, and the pump body 1 has an inlet end and an outlet end communicating with the channel at both ends. The pump body 1 also has an installation cavity communicating with the channel, and an impeller 2 is installed in the installation cavity. The top of the pump body 1 also has a transmission part, and a support member is installed on the top of the transmission part. The motor 8 is installed on the top of the support member, and the motor 8 drives the impeller 2 to rotate through the transmission part, which is used to draw slurry in from the inlet end, flow through the channel, and discharge it from the outlet end. The support member includes a motor seat 10 that is detachably installed on the top of the bearing body 5. The motor 8 is detachably installed on the top of the motor seat 10. The motor seat 10 has a hollow cavity inside, and the upper bearing cover 6, the pump coupling 7, and the motor coupling 9 are all located in the cavity.

[0023] In use, first install the transmission part on the bearing body 5, and install the impeller 2 at the bottom of the transmission part. Then, fix the bearing body 5 to the top of the pump body 1 with bolts to assemble the transmission part with the pump body 1. Next, fix the motor base 10 to the top of the bearing body 5 with bolts, and then install the motor 8 on the motor base 10. At this time, the main shaft of the motor 8 is connected to the transmission part through the cooperation of the motor coupling 9 and the pump coupling 7, thus completing the assembly of the slurry pump. Then, install the assembled slurry pump in the middle of the pipeline, so that the feed end and discharge end of the pump body 1 are connected to the pipeline. After the pipeline fills the pump body 1 with liquid, the impeller 2 is driven by the motor 8 to rotate at high speed through the transmission part to form centrifugal force, which provides kinetic energy to the liquid, thereby increasing the outlet pressure and playing a secondary pressurization effect on the liquid transported in the pipeline, which is conducive to the efficient transport of slurry liquid.

[0024] Regarding the aforementioned transmission components, such as Figure 1 and Figure 2 As shown, the transmission part includes a bearing housing 5 mounted on the top of the pump body 1 and a transmission shaft 16 vertically disposed inside the bearing housing 5. The top and bottom ends of the bearing housing 5 are respectively provided with cylindrical roller bearings 11 and angular contact bearings 13 for mounting and fixing the transmission shaft 16. A pump coupling 7 is mounted on the top end of the transmission shaft 16, and the bottom end of the transmission shaft 16 extends into the mounting cavity. An impeller 2 is fitted onto the bottom end of the transmission shaft 16, and an impeller nut 15 for fixing the impeller 2 is screwed onto the bottom end of the transmission shaft 16. A motor coupling 9 that mates with the pump coupling 7 is mounted on the main shaft of the motor 8. The transmission shaft 16 passes through the cylindrical roller bearings 11 and angular contact bearings sequentially from top to bottom. 13. The bearing housing 5 is also provided with a clamping component to fix the cylindrical roller bearing 11 and the angular contact bearing 13. The angular contact bearing 13 is a paired angular contact bearing, which is fitted on the drive shaft 16 and fixed with a round nut. The cylindrical roller bearing 11 can be pre-injected with an appropriate amount of lithium-based grease to facilitate the rotation of the rollers inside the cylindrical roller bearing 11. Therefore, when the motor 8 drives the drive shaft 16 to rotate through the cooperation of the motor coupling 9 and the pump coupling 7, the drive shaft 16 rotates at high speed under the action of the cylindrical roller bearing 11 and the angular contact bearing 13. Subsequently, the drive shaft 16 drives the impeller 2 to rotate at high speed, thereby realizing the conveying of slurry.

[0025] Specifically, regarding the aforementioned clamping components, such as Figure 1 and Figure 2 As shown, the clamping components include an upper bearing cover 6 that is detachably mounted on the top of the bearing body 5 and a lower bearing cover 14 that is detachably mounted inside the bearing body 5. The upper bearing cover 6 is pressed against the top of the cylindrical roller bearing 11, and the lower bearing cover 14 is pressed against the bottom of the angular contact bearing 13. The pump coupling 7 is located above the upper bearing cover 6.

[0026] During installation, the upper bearing cap 6 can be fixed to the top of the bearing body 5 with bolts to press and fix the cylindrical roller bearing 11. Then, the lower bearing cap 14 can be fixed inside the bearing body 5 with bolts to press and fix the angular contact bearing 13. This realizes the installation and fixing of the cylindrical roller bearing 11 and the angular contact bearing 13, and facilitates the disassembly of the cylindrical roller bearing 11 and the angular contact bearing 13, which is beneficial to the maintenance or replacement of the cylindrical roller bearing 11 and the angular contact bearing 13.

[0027] Meanwhile, in order to ensure the sealing between the drive shaft 16 and the mechanical seal pump cover 3, such as Figure 1 and Figure 3 As shown, the top of the pump body 1 is also equipped with a mechanical seal pump cover 3 to seal the mounting cavity, and a mechanical seal 4 is installed on the mechanical seal pump cover 3 to seal the drive shaft 16 to it. The mechanical seal 4 is located inside the bearing body 5, and the bottom of the bearing body 5 presses against the top of the mechanical seal pump cover 3. Specifically, the mechanical seal 4 is a purchased cartridge-type double-end mechanical seal, which is fixed to the mechanical seal pump cover 3 with bolts to achieve the disassembly of the mechanical seal 4, which facilitates the maintenance and replacement of the mechanical seal 4. At the same time, the mechanical seal friction pair of the mechanical seal 4 adopts a hard-to-hard sealing method of silicon carbide to hard alloy. Therefore, during the use of the slurry pump, the mechanical seal 4 plays a sealing role to ensure the normal use of the slurry pump and further facilitate the efficient transportation of slurry.

[0028] In addition, to prevent leakage of the lithium-based grease injected into the cylindrical roller bearing 11 and to ensure the lubrication effect inside the cylindrical roller bearing 11, such as... Figure 1 and Figure 2 As shown, an oil baffle ring 12 is also provided inside the bearing body 5 and is sleeved on the drive shaft 16, and the oil baffle ring 12 is located at the bottom of the cylindrical roller bearing 11.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipeline slurry pump, characterized in that: The pump includes a pump body (1) and a motor (8). The pump body (1) has a channel for slurry to flow inside. The pump body (1) has an inlet end and an outlet end that are connected to the channel at both ends. The pump body (1) also has an installation cavity that is connected to the channel inside. An impeller (2) is installed in the installation cavity. A transmission part is also provided on the top of the pump body (1). A support is installed on the top of the transmission part. The motor (8) is installed on the top of the support. The motor (8) drives the impeller (2) to rotate through the transmission part. The slurry is sucked in from the inlet end and flows through the channel before being discharged from the outlet end.

2. The pipeline slurry pump according to claim 1, characterized in that: The transmission part includes a bearing body (5) installed at the top of the pump body (1) and a transmission shaft (16) vertically disposed inside the bearing body (5). The top and bottom ends of the bearing body (5) are respectively provided with a cylindrical roller bearing (11) and an angular contact bearing (13) for mounting and fixing the transmission shaft (16). A pump coupling (7) is installed at the top of the transmission shaft (16), and the bottom end of the transmission shaft (16) extends into the mounting cavity. The impeller (2) is fitted into... The bottom end of the drive shaft (16) is screwed with an impeller nut (15) to fix the impeller (2). The main shaft of the motor (8) is equipped with a motor coupling (9) that cooperates with the pump coupling (7). The drive shaft (16) passes through a cylindrical roller bearing (11) and an angular contact bearing (13) from top to bottom. The bearing body (5) is also provided with a clamping member to fix the cylindrical roller bearing (11) and the angular contact bearing (13).

3. The pipeline slurry pump according to claim 2, characterized in that: The clamping components include an upper bearing cap (6) detachably mounted on the top of the bearing body (5) and a lower bearing cap (14) detachably mounted inside the bearing body (5). The upper bearing cap (6) is clamped on the top of the cylindrical roller bearing (11), and the lower bearing cap (14) is clamped on the bottom of the angular contact bearing (13). The pump coupling (7) is located above the upper bearing cap (6).

4. The pipeline slurry pump according to claim 2, characterized in that: The top of the pump body (1) is also provided with a mechanical seal pump cover (3) that seals the mounting cavity, and a mechanical seal (4) that seals the drive shaft (16) is installed on the mechanical seal pump cover (3). The mechanical seal (4) is located inside the bearing body (5), and the bottom of the bearing body (5) presses against the top of the mechanical seal pump cover (3).

5. The pipeline slurry pump according to claim 3, characterized in that: The support includes a motor base (10) that can be detachably mounted on top of the bearing body (5), and the motor (8) is detachably mounted on the top of the motor base (10). The interior of the motor base (10) is hollowed out to form a cavity, and the upper bearing cover (6), pump coupling (7) and motor coupling (9) are all located in the cavity.

6. The pipeline slurry pump according to claim 2, characterized in that: The bearing body (5) is also provided with an oil baffle ring (12) sleeved on the transmission shaft (16), and the oil baffle ring (12) is located at the bottom of the cylindrical roller bearing (11).

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