Submerged slurry pump

Abstract

The application belongs to the technical field of slag slurry pumps, and discloses a submerged slag slurry pump which comprises a support, a pump body, an impeller, a discharge pipe, a driving structure and a flow guide structure. The support is internally hollow. The bottom of the pump body is provided with an inlet, and the side of the pump body is provided with a discharge outlet. The impeller is arranged in the interior of the pump body. The discharge pipe is arranged on the side of the pump body and is in communication with the discharge outlet. The driving structure is arranged on the top of the support and is used for driving the impeller to rotate. The flow guide structure comprises a follow-up shaft arranged at the bottom of the impeller and flow guide blades arranged on the follow-up shaft. The follow-up shaft extends to the outside of the pump body through the inlet. The flow guide blades are located outside the pump body. The follow-up shaft can drive the flow guide blades to rotate along with the impeller, so that the slag slurry moves towards the direction where the inlet is located under the action of the flow guide blades, thereby improving the feeding efficiency of the pump body and the pumping efficiency of the submerged slag slurry pump on the slag slurry.

Description

Technical Field

[0001] This application belongs to the technical field of slurry pumps, and specifically relates to a submersible slurry pump. Background Technology

[0002] Submersible slurry pumps are a type of special pump equipment designed for pumping slurries containing solid particles, abrasive or corrosive substances. They are mainly used in industries such as mining, metallurgy, power, coal, and environmental protection. Their core feature is that at least part of the pump body is submerged in liquid during operation, eliminating the need for priming. They are suitable for working conditions such as deep pits and pools.

[0003] Currently, submersible slurry pumps typically include a support frame, a pump body located at the bottom of the support frame, an impeller located inside the pump body, a drive motor located at the top of the support frame, a transmission shaft located inside the support frame, and a discharge pipe located on the side of the pump body and communicating with the inside of the pump body. The two ends of the transmission shaft are respectively connected to the output shaft of the drive motor and the impeller, so that the output shaft of the drive motor can drive the impeller to rotate. The bottom of the pump body is provided with a feed inlet, so that the slurry can enter the interior of the pump body through the feed inlet and be transported to the outside of the pump body through the discharge pipe under the action of the impeller.

[0004] To prevent large materials from clogging the pump body or causing impeller jamming, a filter cover is usually installed at the feed inlet to block larger materials. However, although this prevents larger materials from entering the pump body, they can still adhere to the outside of the filter cover, which greatly affects the pump's feeding efficiency and, consequently, the pumping efficiency of the submersible slurry pump. Utility Model Content

[0005] This application provides a submersible slurry pump to improve the feeding efficiency of the pump body, thereby improving the pumping efficiency of the submersible slurry pump for slurry.

[0006] The technical solution adopted in this application is as follows:

[0007] A submersible slurry pump, comprising:

[0008] The bracket is hollow inside;

[0009] The pump body has an inlet at the bottom and an outlet on the side.

[0010] An impeller is disposed inside the pump body;

[0011] A discharge pipe is provided on the side of the pump body and is connected to the discharge port;

[0012] A drive structure is provided on the top of the bracket and is used to drive the impeller to rotate;

[0013] The flow guiding structure includes a follower shaft located at the bottom of the impeller and guide vanes located on the follower shaft. The follower shaft extends to the outside of the pump body via the feed inlet, and the guide vanes are located outside the pump body. The follower shaft can drive the guide vanes to rotate with the impeller, so that the slurry moves towards the direction of the feed inlet under the action of the guide vanes.

[0014] By adopting the above technical solution, when using the submersible slurry pump of this application, the drive structure is started so that the drive structure drives the impeller to rotate, and then the slurry inside the pump body enters the discharge pipe through the discharge port under the action of the impeller, so as to realize the pumping of slurry.

[0015] Because the submersible slurry pump of this application has a flow guiding structure, which includes a follower shaft located at the bottom of the impeller and guide vanes located on the follower shaft, the follower shaft rotates with the impeller when the impeller rotates. This causes the guide vanes to apply a thrust to the slurry in the direction of the feed inlet, thereby causing the slurry located at the bottom of the pump body to move towards the feed inlet under the action of the guide vanes, thus improving the pump body's feeding efficiency and consequently improving the submersible slurry pump's slurry delivery efficiency. Simultaneously, the guide vanes, while rotating with the impeller, can also crush larger materials and throw them away from the follower shaft, preventing large materials from entering the pump body and causing blockages or impeller jamming. This ensures the operational stability of the submersible slurry pump and eliminates the need for a filter cover, ensuring the feeding efficiency at the feed inlet and further improving the submersible slurry pump's slurry delivery efficiency.

[0016] Optionally, multiple guide vanes are arranged at circumferential intervals along the follower shaft, and each guide vane is inclined so that when the guide vane rotates with the follower shaft, the guide vane can apply a thrust to the slurry in the direction of the feed inlet.

[0017] By adopting the above technical solution, the inclined design of the guide vanes allows them to apply a thrust towards the feed inlet as they rotate with the follower shaft. This causes the slurry to move towards the feed inlet under the action of the guide vanes, improving the feeding efficiency of the submersible slurry pump and thus increasing its pumping efficiency. Furthermore, the inclined design of the guide vanes enhances the crushing and agitation of larger materials, further preventing blockages and impeller jamming, thereby improving the operational stability of the submersible slurry pump.

[0018] Optionally, the guide vanes are arranged in a circumferential spiral along the follower shaft so that when the guide vanes rotate with the follower shaft, the slurry moves toward the direction of the feed inlet under the spiral action of the guide vanes.

[0019] By adopting the above technical solution, since the guide vanes are spirally arranged along the circumferential axis, the slurry can move towards the feed inlet under the spiral action of the guide vanes when the guide vanes rotate with the follower shaft, so as to realize the continuous pushing of the slurry and further improve the feeding efficiency of the submersible slurry pump.

[0020] Optionally, the top and bottom of the impeller are provided with agitating blades, and a plurality of agitating blades are provided at intervals along the circumference of the impeller.

[0021] By adopting the above technical solution, since the top and bottom of the impeller are respectively equipped with agitating blades, the impeller is subjected to force balance as much as possible in its own axial direction, thereby reducing the axial force on the impeller, improving the uniformity of slurry flow velocity distribution, and enabling the two end faces of the impeller to jointly bear the impact of slurry, so as to extend the service life of the impeller.

[0022] Optionally, the bottom of the drive structure is provided with a mounting plate located at the top of the bracket, the mounting plate is provided with a receiving notch, and at least a portion of the discharge pipe is located in the receiving notch.

[0023] By adopting the above technical solution, since at least part of the discharge pipe is located in the receiving notch, the receiving notch can be used to position and limit the discharge pipe, thereby increasing the stability of the discharge pipe.

[0024] Optionally, the bottom of the mounting plate is provided with a fixing member located at the top of the bracket, and both ends of the fixing member are provided with buoyancy members located on both sides of the drive structure. The buoyancy members can float on the surface of the slurry, so that the drive structure is at least partially located above the surface of the slurry.

[0025] By adopting the above technical solution, since both ends of the fixing component are equipped with buoyancy components located on both sides of the drive structure, and the fixing component is located at the bottom of the mounting plate, the buoyancy components can be used to apply an upward supporting force to the drive structure, so that at least part of the drive structure is above the liquid surface of the slurry. At the same time, the position of the submersible slurry pump can be automatically adjusted according to the liquid surface of the slurry. On the one hand, the installation difficulty of the submersible slurry pump is reduced, and on the other hand, the step of manually adjusting the position of the submersible slurry pump is eliminated, thereby reducing the workload of the staff.

[0026] Optionally, the mounting plate has a side and an end, the discharge pipe is located at the end of the mounting plate, and the buoyancy member is located at the side of the mounting plate.

[0027] By adopting the above technical solution, since the discharge pipe is located at the end of the mounting plate and the buoyancy component is located on the side of the mounting plate, the buoyancy component can avoid the discharge pipe. On the one hand, the space between the two buoyancy components can be reasonably utilized to improve the structural compactness of the submersible slurry pump. On the other hand, the buoyancy component can be placed closer to the drive structure to improve the structural compactness of the submersible slurry pump as well.

[0028] Optionally, the mounting plate has a positioning notch on its side, and the fastener has a positioning rib extending into the positioning notch.

[0029] By adopting the above technical solution, since the mounting plate has a positioning notch on its side and the fastener has a positioning rib extending into the positioning notch, the positioning rib and the positioning notch can be used to position and limit the fastener. This reduces the installation difficulty of the fastener and increases the connection stability between the fastener and the mounting plate.

[0030] Optionally, the submersible slurry pump further includes a delivery pipe, which is connected to the discharge pipe via a flexible pipe.

[0031] By adopting the above technical solution, since the conveying pipe is connected to the discharge pipe through a flexible pipe, the flexible pipe can deform when the submersible slurry pump floats with the surface of the slurry. The deformation of the flexible pipe can compensate for the elongation or shortening requirements of the conveying pipe due to the floating of the submersible slurry pump. On the one hand, the stability of the conveying pipe is guaranteed, and on the other hand, the submersible slurry pump can float up and down with the surface of the slurry.

[0032] Optionally, the mounting plate is provided with a connector, and the discharge pipe is connected to the connector by fasteners.

[0033] By adopting the above technical solution, the discharge pipe is fixedly connected to the mounting plate by fasteners, thereby further increasing the stability of the discharge pipe.

[0034] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0035] 1. The submersible slurry pump of this application includes a support frame, a pump body, an impeller, a discharge pipe, a drive structure, and a flow guiding structure. The support frame is hollow inside. The pump body has an inlet at the bottom and a discharge port on the side. The impeller is located inside the pump body. The discharge pipe is located on the side of the pump body and communicates with the discharge port. The drive structure is located on the top of the support frame and is used to drive the impeller to rotate. The flow guiding structure includes a follower shaft located at the bottom of the impeller and guide vanes located on the follower shaft. The follower shaft extends to the outside of the pump body through the inlet. The guide vanes are located outside the pump body. The follower shaft can drive the guide vanes to rotate with the impeller, so that the slurry moves towards the direction of the inlet under the action of the guide vanes, thereby improving the feeding efficiency of the pump body and thus improving the pumping efficiency of the submersible slurry pump. Meanwhile, as the guide vanes rotate with the impeller, they can also crush larger materials and throw them away from the follower shaft to prevent larger materials from entering the pump body and causing blockage or impeller jamming. This ensures the working stability of the submersible slurry pump and allows the submersible slurry pump of this application to eliminate the need for a filter cover, thus ensuring the feeding efficiency of the inlet and further improving the pumping efficiency of the submersible slurry pump.

[0036] 2. In this application, multiple guide vanes are spaced circumferentially along the follower shaft, each vane being inclined. This allows the guide vanes to apply a thrust towards the feed inlet to the slurry as they rotate with the follower shaft, thereby causing the slurry to move towards the feed inlet under the action of the guide vanes. This improves the feeding efficiency of the submersible slurry pump and consequently enhances its pumping efficiency. Furthermore, by setting the guide vanes to be inclined, the crushing and agitation effect on larger materials is improved, further preventing large materials from clogging the pump body and causing impeller jamming, thus further improving the operational stability of the submersible slurry pump.

[0037] 3. The guide vanes in this application are spirally arranged along the circumferential direction of the follower shaft, so that when the guide vanes rotate with the follower shaft, the slurry moves towards the direction of the discharge port under the spiral action of the guide vanes, so as to realize the continuous pushing of the slurry and further improve the feeding efficiency of the submersible slurry pump. Attached Figure Description

[0038] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0039] Figure 1 This is a schematic diagram of the submersible slurry pump described in one embodiment of this application. The buoyancy component is not shown in the figure.

[0040] Figure 2 This is a schematic diagram of the flow guiding structure described in Embodiment 1 of this application;

[0041] Figure 3 This is a schematic diagram of the flow guiding structure described in Embodiment 2 of this application;

[0042] Figure 4 This is a schematic diagram of the submersible slurry pump described in one embodiment of this application, mainly showing the buoyancy component;

[0043] Figure 5 This is a schematic diagram of the mounting plate in one embodiment of this application, mainly showing the relationship between the discharge pipe and the mounting plate;

[0044] Figure 6 This is a schematic diagram showing the connection relationship between the discharge pipe, the flexible pipe, and the conveying pipe in one embodiment of this application.

[0045] Figure label:

[0046] 1. Support frame; 2. Pump body; 3. Impeller; 31. Agitator blades; 4. Discharge pipe; 5. Drive structure; 51. Drive motor; 52. Transmission shaft; 6. Guide structure; 61. Follower shaft; 62. Guide blades; 7. Mounting plate; 71. Accommodation notch; 72. Positioning notch; 73. Connector; 731. Fastener; 8. Fixing component; 81. Buoyancy component; 9. Conveying pipe; 91. Flexible pipe. Detailed Implementation

[0047] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0048] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0049] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0052] Reference Figures 1 to 6 A submersible slurry pump is disclosed, comprising a support 1, a pump body 2, an impeller 3, a discharge pipe 4, a drive structure 5, and a flow guiding structure 6. The support 1 is hollow inside. The pump body 2 has an inlet at the bottom and an outlet on the side. The impeller 3 is located inside the pump body 2. The discharge pipe 4 is located on the side of the pump body 2 and communicates with the outlet. The drive structure 5 is located on the top of the support 1 and is used to drive the impeller 3 to rotate. The flow guiding structure 6 includes a follower shaft 61 located at the bottom of the impeller 3 and a guide vane 62 located on the follower shaft 61. The follower shaft 61 extends to the outside of the pump body 2 through the inlet. The guide vane 62 is located outside the pump body 2. The follower shaft 61 can drive the guide vane 62 to rotate with the impeller 3, so that the slurry moves towards the inlet under the action of the guide vane 62.

[0053] It is understandable that the pump body 2 is provided with a pipe extending upward at the discharge port, and the discharge pipe 4 is fixedly connected to the pipe and connected to the pipe to realize the connection between the discharge pipe 4 and the discharge port.

[0054] When using the submersible slurry pump of this application, the drive structure 5 is started so that the drive structure 5 drives the impeller 3 to rotate, and then the slurry inside the pump body 2 enters the discharge pipe 4 through the discharge port under the action of the impeller 3, so as to realize the pumping of slurry.

[0055] Because the submersible slurry pump in this application has a flow guiding structure 6, which includes a follower shaft 61 located at the bottom of the impeller 3 and a flow guiding vane located on the follower shaft 61, the follower shaft 61 rotates with the impeller 3 when the impeller 3 rotates, so that the flow guiding vane 62 applies a thrust to the slurry in the direction of the feed inlet, thereby causing the slurry located at the bottom of the pump body 2 to move towards the feed inlet under the action of the flow guiding vane 62, thereby improving the feeding efficiency of the pump body 2 and thus improving the pumping efficiency of the submersible slurry pump.

[0056] Meanwhile, as the guide vanes 62 rotate with the impeller 3, they can also crush larger materials and throw them away from the follower shaft 61 to prevent larger materials from entering the pump body 2 and causing blockage of the pump body 2 or jamming of the impeller 3. This ensures the working stability of the submersible slurry pump and allows the submersible slurry pump of this application to eliminate the need for a filter cover design, thereby ensuring the feeding efficiency of the feed inlet and further improving the pumping efficiency of the submersible slurry pump.

[0057] This application does not specifically limit the drive structure 5. Preferably, the drive structure 5 includes a drive motor 51 and a transmission shaft 52. The transmission shaft 52 is located inside the bracket 1. The transmission shaft 52 is coaxially arranged with the output shaft of the drive motor 51. One end of the transmission shaft 52 is connected to the output shaft of the drive motor 51, and the other end of the transmission shaft 52 is coaxially connected to the impeller 3, so as to drive the impeller 3 to rotate by the output shaft of the drive motor 51.

[0058] Preferably, the drive motor 51 is a permanent magnet motor to improve the driving efficiency of the impeller 3 and reduce the size of the submersible slurry pump.

[0059] In other embodiments, the drive structure 5 may also be other structures capable of driving the impeller 3 to rotate, such as a combination of a pneumatic motor and a drive shaft 52.

[0060] This application does not impose specific limitations on the structure of the guide vane 62, which can adopt any of the following embodiments:

[0061] Implementation Method 1, in this implementation method, refer to Figure 2 Multiple guide vanes 62 are arranged at intervals along the circumference of the follower shaft 61, and each guide vane 62 is inclined so that when the guide vane 62 rotates with the follower shaft 61, the guide vane 62 can apply a thrust to the slurry in the direction of the feed inlet.

[0062] It is understood that the guide vane 62 has a length direction perpendicular to the axial direction of the follower shaft 61 and a width direction perpendicular to the length direction. The above-mentioned "each guide vane 62 is inclined" means that the width direction of the guide vane 62 is set at an angle to the axial direction of the guide shaft.

[0063] Because the guide vanes 62 are inclined, when they rotate with the follower shaft 61, they apply a thrust to the slurry in the direction of the feed inlet. This causes the slurry to move towards the feed inlet under the action of the guide vanes 62, thereby improving the feeding efficiency of the submersible slurry pump and thus its pumping efficiency. Simultaneously, by setting the guide vanes 62 to be inclined, the crushing and agitation effect on larger materials is also improved, further preventing large materials from clogging the pump body 2 and causing impeller 3 to jam, thus further improving the operational stability of the submersible slurry pump.

[0064] Preferably, multiple guide vanes 62 are evenly spaced along the circumference of the follower shaft 61 to ensure the force balance of the follower shaft 61, thereby improving the operational stability of the submersible slurry pump.

[0065] In this embodiment, the number of guide vanes 62 is not specifically limited. Preferably, two guide vanes 62 are provided to reduce the load on the drive motor 51 while ensuring the slurry pushing effect, thereby reducing the energy consumption of the submersible slurry pump.

[0066] Implementation Method Two: In this implementation method, refer to... Figure 3 The guide vanes 62 are spirally arranged around the follower shaft 61 so that when the guide vanes 62 rotate with the follower shaft 61, the slurry moves towards the feed port under the spiral action of the guide vanes 62, so as to realize the continuous pushing of the slurry and further improve the feeding efficiency of the submersible slurry pump.

[0067] In a preferred embodiment, refer to Figure 1 The top and bottom of the impeller 3 are provided with agitating blades 31, and multiple agitating blades 31 are provided at intervals along the circumference of the impeller 3.

[0068] Because the impeller 3 has agitating blades 31 arranged opposite to each other at the top and bottom, the impeller 3 is subjected to force balance as much as possible in its own axial direction, so as to reduce the axial force on the impeller 3, improve the uniformity of slurry flow velocity distribution, and make the two end faces of the impeller 3 jointly bear the impact of slurry, so as to extend the service life of the impeller 3.

[0069] Preferably, multiple agitator blades 31 are evenly spaced along the circumference of the impeller 3 to ensure the rotational balance of the impeller 3.

[0070] This application does not impose specific limitations on the arrangement of the agitator blades 31. Preferably, the agitator blades 31 extend radially along the impeller 3. In other embodiments, the agitator blades 31 may also be arranged at an angle to the radial direction of the impeller 3.

[0071] In a preferred embodiment, refer to Figure 1 , Figure 4 and Figure 5 The bottom of the drive structure 5 is provided with a mounting plate 7 located on the top of the bracket 1. The mounting plate 7 is provided with a receiving notch 71. At least a part of the discharge pipe 4 is located in the receiving notch 71, thereby enabling the receiving notch 71 to position and limit the discharge pipe 4, so as to increase the stability of the discharge pipe 4.

[0072] Specifically, the mounting plate 7 is located at the bottom of the drive motor 51 and at the top of the bracket 1.

[0073] Furthermore, refer to Figure 4 The bottom of the mounting plate 7 is provided with a fixing member 8 located at the top of the bracket 1. Both ends of the fixing member 8 are provided with buoyancy members 81 located on both sides of the drive structure 5. The buoyancy members 81 can float on the surface of the slurry so that the drive structure is at least partially located above the surface of the slurry.

[0074] It should be noted that the phrase "so that the drive structure is at least partially above the slurry surface" means that the drive motor 51 of the drive structure is located above the slurry surface.

[0075] Since both ends of the fixing member 8 are provided with buoyancy members 81 located on both sides of the drive structure 5, and the fixing member 8 is located at the bottom of the mounting plate 7, the buoyancy members 81 can be used to apply an upward supporting force to the drive structure 5 so that the drive structure 5 is above the liquid surface of the slurry. At the same time, the position of the submersible slurry pump can be automatically adjusted according to the liquid surface of the slurry. On the one hand, this reduces the installation difficulty of the submersible slurry pump, and on the other hand, it eliminates the need for manual adjustment of the position of the submersible slurry pump, thereby reducing the workload of the staff.

[0076] Preferably, the buoyancy component 81 is located at the bottom of the fixing component 8 to ensure that the drive motor 51 is above the liquid surface of the slurry.

[0077] This application does not specifically limit the structure of the buoyancy component 81. Preferably, the buoyancy component 81 is a buoyancy cylinder to ensure that the buoyancy component 81 can provide support for the drive motor 51. In other embodiments, the buoyancy component 81 can also be a block-shaped foam structure.

[0078] This application does not impose specific limitations on the structure of the fastener 8. Preferably, the fastener 8 is a frame structure to reduce its weight while ensuring the fixation effect on the buoyancy member 81. In other embodiments, the fastener 8 may also be a plate-like structure.

[0079] Furthermore, refer to Figure 4The mounting plate 7 has a side and an end. The discharge pipe 4 is located at the end of the mounting plate 7, and the buoyancy member 81 is located on the side of the mounting plate 7, so that the buoyancy member 81 can avoid the discharge pipe 4. On the one hand, the space between the two buoyancy members 81 can be used reasonably to improve the structural compactness of the submersible slurry pump. On the other hand, the buoyancy member 81 can be closer to the drive structure 5 to improve the structural compactness of the submersible slurry pump.

[0080] Furthermore, refer to Figure 5 The mounting plate 7 has a positioning notch 72 on its side, and the fastener 8 has a positioning rib that extends into the positioning notch 72.

[0081] Since the mounting plate 7 has a positioning notch 72 on its side and the fastener 8 has a positioning rib extending into the positioning notch 72, the positioning rib and the positioning notch 72 can be used to position and limit the fastener 8. This reduces the difficulty of installing the fastener 8 and increases the connection stability between the fastener 8 and the mounting plate 7.

[0082] Furthermore, refer to Figure 6 The submersible slurry pump also includes a delivery pipe 9, which is connected to the discharge pipe 4 via a flexible pipe 91. When the submersible slurry pump floats with the surface of the slurry, the flexible pipe 91 can deform to compensate for the elongation or shortening of the delivery pipe 9 due to the floating of the submersible slurry pump. This ensures the stability of the delivery pipe 9 and allows the submersible slurry pump to float up and down with the surface of the slurry.

[0083] Furthermore, refer to Figure 2 and Figure 5 The mounting plate 7 is provided with a connector 73, and the discharge pipe 4 is connected to the connector 73 by a fastener 731, thereby fixing the discharge pipe 4 to the mounting plate 7 and further increasing the stability of the discharge pipe 4.

[0084] This application does not specifically limit the structure of the connector 73 and the fastener 731. Preferably, the connector 73 is a U-shaped structure, and plate-shaped connecting portions are provided on both sides of the opening of the U-shaped structure. Plate-shaped structures corresponding to the connecting portions are provided on opposite sides of the discharge pipe 4. The fastener 731 is a bolt pair that passes through the connecting portions and the plate-shaped structures. In other embodiments, the connector 73 can also be a plate-shaped structure provided on the mounting plate 7, and the fastener 731 can be a U-shaped bolt pair sleeved on the outside of the discharge pipe 4.

[0085] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0086] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0087] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A submersible slurry pump, characterized in that, include: The bracket (1) is hollow inside; Pump body (2), the bottom of the pump body (2) is provided with a feed inlet and the side is provided with a discharge outlet; Impeller (3), the impeller (3) is disposed inside the pump body (2); The discharge pipe (4) is located on the side of the pump body (2) and is connected to the discharge port; A drive structure (5) is provided on the top of the bracket (1) and is used to drive the impeller (3) to rotate; The flow guiding structure (6) includes a follower shaft (61) located at the bottom of the impeller (3) and a flow guiding blade (62) located on the follower shaft (61). The follower shaft (61) extends to the outside of the pump body (2) through the feed inlet. The flow guiding blade (62) is located outside the pump body (2). The follower shaft (61) can drive the flow guiding blade (62) to rotate with the impeller (3) so that the slurry moves toward the direction of the feed inlet under the action of the flow guiding blade (62).

2. A submersible slurry pump according to claim 1, characterized in that, Multiple guide vanes (62) are arranged at circumferential intervals along the follower shaft (61), and each guide vane (62) is inclined so that when the guide vane (62) rotates with the follower shaft (61), the guide vane (62) can apply a thrust to the slurry in the direction of the feed inlet.

3. A submersible slurry pump according to claim 1, characterized in that, The guide vane (62) is spirally arranged along the circumferential direction of the follower shaft (61) so that when the guide vane (62) rotates with the follower shaft (61), the slurry moves toward the direction of the feed inlet under the spiral action of the guide vane (62).

4. A submersible slurry pump according to claim 1, characterized in that, The top and bottom of the impeller (3) are provided with agitating blades (31) facing each other, and multiple agitating blades (31) are provided at intervals along the circumference of the impeller (3).

5. A submersible slurry pump according to any one of claims 1-4, characterized in that, The bottom of the drive structure (5) is provided with a mounting plate (7) located on top of the bracket (1), the mounting plate (7) is provided with a receiving notch (71), and at least a portion of the discharge pipe (4) is located in the receiving notch (71).

6. A submersible slurry pump according to claim 5, characterized in that, The bottom of the mounting plate (7) is provided with a fixing member (8) located at the top of the bracket (1). Both ends of the fixing member (8) are provided with buoyancy members (81) located on both sides of the drive structure (5). The buoyancy members (81) can float on the surface of the slurry so that at least part of the drive structure (5) is located above the surface of the slurry.

7. A submersible slurry pump according to claim 6, characterized in that, The mounting plate (7) has a side and an end, the discharge pipe (4) is located at the end of the mounting plate (7), and the buoyancy member (81) is located at the side of the mounting plate (7).

8. A submersible slurry pump according to claim 7, characterized in that, The mounting plate (7) has a positioning notch (72) on its side, and the fastener (8) has a positioning rib extending into the positioning notch (72).

9. A submersible slurry pump according to claim 6, characterized in that, The submersible slurry pump also includes a delivery pipe (9), which is connected to the discharge pipe (4) via a flexible pipe (91).

10. A submersible slurry pump according to claim 5, characterized in that, The mounting plate (7) is provided with a connector (73), and the discharge pipe (4) is connected to the connector (73) by a fastener (731).

Images