High-lift slurry pump with sealing water

Abstract

The utility model relates to the technical field of slurry pumps, and provides a high-lift slurry pump with sealing water, which comprises a pump body with an accommodating space; the pump cover is detachably arranged on the pump body and used for sealing the containing space. The protection part is arranged in the containing space and divides the containing space into a plurality of cavities and overflowing spaces, the protection part and the pump body are cavities, the protection part and the pump cover are cavities, and high-pressure fluid is contained in the cavities. By means of the technical scheme, the technical problems that in the prior art, when a pump body and a pump cover are manufactured, the pressure bearing performance and the abrasion resistance need to be considered, the production cost of the pump body is high, and the overall economic benefit is low are solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of slurry pumps, in particular, to a high-lift slurry pump with sealing water. BACKGROUND

[0002] In many industrial fields such as mining, metallurgy, power and the like, the delivery of slurry is a key task. As the main delivery equipment, the performance of the slurry pump directly affects the efficiency and stability of the production process. The high-lift slurry pump plays an important role in long-distance and high-drop delivery scenarios. Since the slurry usually contains a large amount of solid particles, these particles will cause serious wear and impact on the flow components of the pump, such as the impeller, volute, etc. during the operation of the pump. This not only reduces the efficiency of the pump, but also shortens the service life of the pump.

[0003] In the prior art, the high-lift slurry pump not only needs excellent wear resistance, but also needs to ensure its pressure-bearing performance, which limits the selection of the material of the pump body and the pump cover. Not only does it need to bear pressure, but it also needs to have good wear resistance. Therefore, the production cost of the high-lift slurry pump is high, which reduces the economic benefits. CONTENT OF THE INVENTION

[0004] To overcome the above-mentioned defects, embodiments of the present disclosure provide a high-lift slurry pump with sealing water, which solves the technical problem that in the prior art, the pump body and the pump cover need to consider both pressure-bearing performance and wear resistance during manufacturing, resulting in high production cost of the pump body and low overall economic benefits.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a high-lift slurry pump with sealing water, comprising:

[0006] a pump body having a containing space;

[0007] a pump cover detachably arranged on the pump body, the pump cover being used to close the containing space;

[0008] a protection piece arranged in the containing space, the protection piece separating the containing space into a plurality of cavities and a flow space, the cavities being between the protection piece and the pump body, the cavities also being between the protection piece and the pump cover, and the cavities having high-pressure fluid therein.

[0009] For example, the high-lift slurry pump with sealing water provided by at least one embodiment of the present disclosure further comprises:

[0010] a plurality of water inlet pipelines arranged on the pump cover and the pump body, each water inlet pipeline being in one-to-one correspondence with each cavity and being in communication therewith;

[0011] A plurality of standby pipes are arranged on the pump cover and the pump body, and each of the standby pipes is in one-to-one correspondence with the cavity.

[0012] For example, in the high-lift slurry pump with sealing water, the standby pipes can be water inlet pipes or water outlet pipes.

[0013] For example, in the high-lift slurry pump with sealing water, the protective member comprises:

[0014] A rear guard plate is detachably arranged on the pump body.

[0015] A sheath is detachably arranged on the pump body.

[0016] A front guard plate is detachably arranged on the pump cover, and the rear guard plate, the sheath and the front guard plate abut in sequence to form the flow space.

[0017] For example, in the high-lift slurry pump with sealing water, further comprising:

[0018] A stuffing box is arranged on the rear guard plate.

[0019] A rotating shaft is rotatably arranged on the stuffing box, and one end of the rotating shaft penetrates through the stuffing box into the flow space.

[0020] A sealing packing is arranged in the stuffing box, and the sealing packing is used to seal the gap between the stuffing box and the rotating shaft.

[0021] A water seal ring is sleeved on the rotating shaft, and the water seal ring and the sealing packing jointly seal the gap between the rotating shaft and the stuffing box.

[0022] For example, in the high-lift slurry pump with sealing water, further comprising:

[0023] An impeller is arranged on the rotating shaft, and the impeller is located in the flow space and synchronously rotates with the rotating shaft.

[0024] For example, in the high-lift slurry pump with sealing water, the first gap and the first lubricating cavity are arranged between the impeller and the rear guard plate, and further comprising:

[0025] A shaft seal water pipe is arranged on the stuffing box, and the shaft seal water pipe is used to supply high-pressure fluid into the stuffing box, the high-pressure fluid enters the first lubricating cavity along the first gap, and the high-pressure fluid is used to lubricate the impeller and the rear guard plate.

[0026] For example, the high-lift slurry pump with sealing water provided by at least one embodiment of the present disclosure has a second gap and a second lubricating cavity between the impeller and the front guard plate, the front guard plate has a flow hole, the flow hole is in communication with the second gap, and the high-pressure fluid enters the second lubricating cavity from the second gap, and the high-pressure fluid is used for lubricating the second gap and the front guard plate.

[0027] For example, the high-lift slurry pump with sealing water provided by at least one embodiment of the present disclosure has an impeller, and further comprises:

[0028] A suction liner is arranged on the pump cover and abuts against the inlet, and the suction liner has a threaded hole;

[0029] A jacking bolt is arranged on the pump cover and cooperates with the suction liner, and the jacking bolt is used for keeping the suction liner abutting against the inlet.

[0030] For example, the high-lift slurry pump with sealing water provided by at least one embodiment of the present disclosure further comprises:

[0031] A suction pipe is sleeved on the suction liner and used for protecting the suction liner.

[0032] The embodiments of the present disclosure have the following beneficial effects:

[0033] In the present disclosure, the accommodating space of the pump body provides necessary space for the slurry conveying, and ensures the basic function of the pump. The pump cover is detachably arranged, which facilitates the maintenance and repair of the internal components of the pump, and reduces the maintenance cost and time. The arrangement of the protection member effectively protects the pump body and the pump cover from direct wear and impact of solid particles in the slurry, and prolongs the service life of the pump. The flow space in the protection member ensures the normal flow of the slurry, and does not affect the working efficiency of the pump. The cavity between the protection member and the pump cover and the pump body is filled with high-pressure fluid, which can balance the internal pressure, improve the pressure-bearing capacity of the pump, and make it adapt to the working requirements of high-lift. This structural design improves the performance and reliability of the pump while reducing the harsh requirements for the materials of the pump body and the pump cover, thereby reducing the production cost and improving the economic benefit. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present disclosure and these drawings without creating any creative labor.

[0035] Figure 1This is a schematic diagram of the structure of one embodiment of the present disclosure;

[0036] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0037] Figure 3 for Figure 1 A magnified view of a portion of point B in the middle.

[0038] In the diagram: 1. Pump body; 110. Reception space; 2. Pump cover; 3. Protective component; 310. Flow space; 320. Cavity; 410. Inlet pipe; 420. Backup pipe; 330. Rear guard plate; 340. Sheath; 350. Front guard plate; 510. Stuffing box; 520. Sealing packing; 530. Shaft; 540. Water seal ring; 610. Impeller; 710. First gap; 720. First lubrication chamber; 730. Shaft seal water pipe; 740. Second gap; 750. Second lubrication chamber; 760. Flow hole; 611. Inlet; 810. Suction liner; 820. Screw hole; 910. Tightening bolt; 920. Suction pipe. Detailed Implementation

[0039] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0040] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0041] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0042] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0044] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] like Figures 1-3 As shown, a high-lift slurry pump with sealing water is illustrated in one embodiment of the present disclosure, including a pump body 1 having a receiving space 110; a pump cover 2 is detachably disposed on the pump body 1, and the pump cover 2 is used to close the receiving space 110; a protective member 3 is disposed within the receiving space 110, and the protective member 3 is disposed within the receiving space 110, dividing the receiving space 110 into several cavities 320 and a flow space 310, with a cavity 320 between the protective member 3 and the pump body 1, and a cavity 320 between the protective member 3 and the pump cover 1, and high-pressure fluid is contained within the cavity 320.

[0046] In this design, the pump body 1 and pump cover 2 enhance the strength of the pump body 1, ensuring that it will not deform due to internal or external pressure during use. The pump cover 2, after installation, ensures the enclosure of the receiving space 110, preventing other components within the space from leaving. The removable pump cover 2 also facilitates maintenance in case of component failure or damage within the receiving space 110, making disassembly more convenient. The protective component 3 is located inside the receiving space 110 and close to the side wall of the receiving space 110. The protective component 3 itself is made of wear-resistant material, which has better wear resistance during use. At the same time, when the protective component 3 is close to the pump body 1 and the pump cover 2, there are several cavities 320 between the protective component 3 and the pump body 1 or the pump cover 2. The empty cavities 320 can reduce the overall weight of the pump. At the same time, the cavities 320 are filled with high-pressure fluid (usually water). The water in the cavities 320 has pressure. When the pump is running, the high pressure inside the pump body 1 will act on the protective component 3. Since the cavities 320 are filled with high-pressure fluid, the pressure acting on the protective component 3 will eventually be transmitted to the pump body 1 and the pump cover 2, so that the protective component 3 bears most of the pressure.

[0047] The advantages of this design are as follows: The accommodating space 110 of the pump body 1 provides the necessary space for slurry transportation, ensuring the basic function of the pump. The pump cover 2 is detachable, facilitating maintenance and repair of internal components and reducing maintenance costs and time. The protective component 3 effectively protects the pump body 1 and pump cover 2 from direct wear and impact from solid particles in the slurry, extending the pump's service life. The flow space 310 within the protective component 3 ensures normal slurry flow without affecting pump efficiency. The cavity 320 between the protective component 3, pump cover 2, and pump body 1 is filled with high-pressure fluid, balancing internal pressure and improving the pump's pressure-bearing capacity, enabling it to meet high-head operating requirements. This structural design improves pump performance and reliability while reducing the stringent requirements on the materials of the pump body 1 and pump cover 2, thereby reducing production costs and improving economic efficiency.

[0048] In some examples, there are several inlet pipes 410, which are installed on the pump cover 2 and the pump body 1, and each inlet pipe 410 is connected to each cavity 320 in a one-to-one correspondence; there are several spare pipes 420, which are installed on the pump cover 2 and the pump body 1, and each spare pipe 420 is connected to each cavity 320 in a one-to-one correspondence.

[0049] In this design, each cavity 320 is connected to one inlet pipe 410 and one backup pipe 420. During operation, multiple inlet pipes 410 ensure that each cavity 320 is quickly and evenly filled with high-pressure fluid, improving the efficiency and stability of pressure balance. Each inlet pipe 410 is connected to a cavity 320 in a one-to-one manner, ensuring the accuracy and independence of fluid supply and avoiding uneven pressure distribution. The backup pipe 420 increases system reliability; when an inlet pipe 410 fails or requires maintenance, the backup pipe 420 can be promptly put into use, ensuring that the cavity 320 always maintains a high-pressure state and does not affect the normal operation of the slurry pump.

[0050] In some examples, the backup pipe 420 can be either an inlet pipe or an outlet pipe.

[0051] In this design, the backup pipe 420 can serve two purposes. When used as the inlet pipe 410, the backup pipe 420 works in conjunction with the inlet pipe 410 to more quickly introduce high-pressure fluid into the cavity 320, ensuring a more stable pressure within the cavity 320. When used as the outlet pipe, the backup pipe 420 can maintain a certain pressure within the cavity 320 by manually controlling the flow rate of the outlet pipe. Simultaneously, the fluid within the cavity 320 circulates, carrying away the heat generated by the components within the storage space 110 during operation. This design allows for greater adaptability to different working environments.

[0052] The advantages of this design are that when high-pressure fluid needs to be added, the backup pipeline 420 functions as an inlet pipe; and when it is necessary to adjust the pressure inside the cavity 320 or to replace the fluid, it can also serve as an outlet pipe, achieving effective control over the pressure and fluid state of the cavity 320. This multi-functional design reduces the number of pipelines, simplifies the system structure, and lowers costs and installation complexity. It can better cope with emergencies or abnormal operating conditions, quickly adjust the state of the cavity 320, and ensure the stable operation of the slurry pump. It provides more options for equipment maintenance and commissioning, facilitating operation and troubleshooting for staff.

[0053] In some examples, the protective component 3 includes: a rear guard plate 330 detachably mounted on the pump body 1; a sleeve 340 detachably mounted on the pump body 1; and a front guard plate 350 detachably mounted on the pump cover 2. The rear guard plate 330, the sleeve 340, and the front guard plate 350 sequentially abut against each other to form a flow space 310.

[0054] In this design, the rear guard plate 330, the sleeve 340, and the front guard plate 350 are all detachable, facilitating individual replacement and maintenance, thus reducing maintenance costs and complexity. The detachability of each guard plate eliminates the need for complete replacement of the entire protective component 3 in case of localized wear or damage, saving materials and time. The sequential contact design forming the flow space 310 ensures the integrity and sealing of the protective component 3, effectively preventing slurry leakage and erosion of the pump body 1. The detachable structure facilitates adjustment and optimization of the protective component 3 during equipment installation and commissioning, ensuring that the dimensions and shape of the flow space 310 meet design requirements.

[0055] In some examples, the stuffing box 510 is mounted on the rear guard plate 330; the rotating shaft 530 is rotatably mounted on the stuffing box 510, with one end of the rotating shaft 530 penetrating through the stuffing box 510 and entering the flow space 310; the sealing packing 520 is mounted inside the stuffing box 510 and is used to seal the gap between the stuffing box 510 and the rotating shaft 530; the water seal ring 540 is sleeved on the rotating shaft 530, and the water seal ring 540 and the sealing packing 520 together seal the gap between the rotating shaft 530 and the stuffing box 510; the impeller 610 is mounted on the rotating shaft 530 and is located inside the flow space 310, and the impeller 610 rotates synchronously when the rotating shaft 530 rotates.

[0056] In this design, the stuffing box 510 is mounted on the rear guard plate 330, making installation more convenient. First, the stuffing box 510 and the rotating shaft 530 are installed; then, the rear guard plate 330 is installed onto the pump body 1, saving space and facilitating installation and maintenance. The rotating shaft 530 can rotate stably on the stuffing box 510, ensuring the normal operation of related components. The dual sealing design of the sealing packing 520 and the water seal ring 540 greatly improves the sealing effect between the rotating shaft 530 and the stuffing box 510, effectively preventing leakage. Good sealing performance reduces leakage of slurry and high-pressure fluids, lowering the risk of resource waste and environmental pollution. The enhanced seal protects the rotating shaft 530 from slurry corrosion, extending its service life and reducing equipment maintenance costs. This reliable sealing structure helps maintain the stable operation of the slurry pump, improving efficiency and reliability. The impeller 610 is mounted on the rotating shaft 530, which drives the impeller 610.

[0057] In some examples, there is a first gap 710 and a first lubrication chamber 720 between the impeller 610 and the rear guard plate 330, and it also includes: a shaft seal water pipe 730 disposed on the stuffing box 510, the shaft seal water pipe 730 being used to supply high-pressure fluid into the stuffing box 510, the high-pressure fluid entering the first lubrication chamber 720 along the first gap 710, and the high-pressure fluid being used to lubricate the impeller 610 and the rear guard plate 330.

[0058] In this design, high-pressure fluid enters the first lubrication chamber 720 through the first gap 710, achieving precise lubrication of the contact area between the impeller 610 and the rear guard plate 330, ensuring uniform and effective lubrication. The presence of the high-pressure fluid not only lubricates but also enhances sealing performance to a certain extent, preventing slurry leakage into the gap and thus protecting the working environment of the impeller 610 and the rear guard plate 330. Continuous lubrication reduces the frictional resistance between the impeller 610 and the rear guard plate 330, resulting in smoother rotation of the impeller 610, reducing vibration and noise caused by uneven friction, and improving the overall stability of the slurry pump. Effective lubrication reduces component wear, extends the service life of the impeller 610 and the rear guard plate 330, and reduces maintenance costs and downtime caused by frequent component replacements. When handling harsh conditions such as high-concentration, high-hardness slurries, good lubrication ensures normal equipment operation and improves equipment reliability and durability.

[0059] In some examples, there is a second gap 740 and a second lubrication chamber 750 between the impeller 610 and the front guard plate 350. The front guard plate 350 has a flow hole 760 that communicates with the second gap 740. High-pressure fluid enters the second lubrication chamber 750 through the second gap 740 and is used to lubricate the second gap 740 and the front guard plate 350.

[0060] In this design, a second gap 740 and a second lubrication chamber 750 are provided between the front guard plate 350 and the impeller 610, achieving targeted lubrication of this contact area and reducing wear and friction loss. The flow hole 760 communicates with the second gap 740, providing a smooth channel for high-pressure fluid to enter the second lubrication chamber 750, ensuring timely supply of lubricating fluid. The lubrication effect of the high-pressure fluid on the second gap 740 and the front guard plate 350 effectively reduces wear on the front guard plate 350 and extends its service life. Good lubrication reduces frictional heat generation between the impeller 610 and the front guard plate 350, reducing the risk of component deformation and damage due to overheating. Stable lubrication helps maintain the normal operation of the impeller 610, improving the working efficiency and stability of the slurry pump.

[0061] In some examples, the impeller 610 has an inlet 611 and also includes: a suction liner 810 disposed on the pump cover 2, the suction liner 810 abutting against the inlet 611, and the suction liner 810 having a threaded hole 820; a tightening bolt 910 disposed on the pump cover 2, the tightening bolt 910 cooperating with the suction liner 810, the tightening bolt 910 being used to keep the suction liner 810 abutting against the inlet 611; and a suction pipe 920 sleeved on the suction liner 810, the suction pipe 920 being used to protect the suction liner 810.

[0062] In this design, inlet 611 is used to connect with external materials. When materials enter, the impeller 610 rotates, generating centrifugal force, which throws the water out, exiting through the discharge port of pump body 1 and pump cover 2, thus achieving the effect of conveying liquid. The suction liner 810 abuts against the impeller 610 inlet 611, effectively reducing leakage at inlet 611 and improving the pump's suction efficiency. The fit between the tightening bolt 910 and the suction liner 810 ensures that the suction liner 810 and inlet 611 always maintain a tight fit, preventing loosening or detachment due to vibration or pressure changes during operation. The screw hole 820 allows the tightening bolt 910 to precisely adjust and fix the position of the suction liner 810, ensuring ease of installation and maintenance. A stable fit helps maintain a good seal at the impeller 610 inlet 611, reducing energy loss and improving the overall performance of the slurry pump. The suction pipe 920 is sleeved externally to ensure the suction liner 810 remains stable at all times.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A high-lift slurry pump with a sealing water feature, characterized in that, include: Pump body (1) has a receiving space (110); Pump cover (2) is detachably mounted on the pump body (1) and is used to close the receiving space (110). A protective component (3) is disposed within the accommodating space (110). The protective component (3) divides the accommodating space (110) into several cavities (320) and a flow space (310). The protective component (3) and the pump body (1) are the cavities (320). The protective component (3) and the pump cover (2) are also the cavities (320). The cavities (320) contain high-pressure fluid.

2. A high-lift slurry pump with sealing water according to claim 1, characterized in that, Also includes: There are several water inlet pipes (410), which are installed on the pump cover (2) and the pump body (1). Each water inlet pipe (410) is connected to each cavity (320) in a one-to-one correspondence. There are several spare pipelines (420), which are installed on the pump cover (2) and the pump body (1), and each spare pipeline (420) is connected to the cavity (320) in a one-to-one correspondence.

3. A high-lift slurry pump with sealing water according to claim 2, characterized in that, The backup pipeline (420) is used for water inlet or outlet.

4. A high-lift slurry pump with sealing water according to claim 1, characterized in that, The protective component (3) includes: The rear guard plate (330) is detachably mounted on the pump body (1); A sheath (340) is detachably mounted on the pump body (1); The front guard plate (350) is detachably mounted on the pump cover (2), and the rear guard plate (330), the sleeve (340) and the front guard plate (350) abut against each other to form the flow space (310).

5. A high-lift slurry pump with sealing water according to claim 4, characterized in that, Also includes: A stuffing box (510) is provided on the rear guard plate (330); A rotating shaft (530) is rotatably mounted on the stuffing box (510), with one end of the rotating shaft (530) penetrating through the stuffing box (510) and entering the flow space (310); A sealing packing (520) is disposed inside the stuffing box (510), and the sealing packing (520) is used to seal the gap between the stuffing box (510) and the rotating shaft (530); A water seal ring (540) is fitted on the rotating shaft (530). The water seal ring (540) and the sealing packing (520) together seal the gap between the rotating shaft (530) and the packing box (510).

6. A high-lift slurry pump with sealing water according to claim 5, characterized in that, Also includes: An impeller (610) is mounted on the rotating shaft (530). The impeller (610) is located within the flow space (310). The rotating shaft (530) is used to drive the impeller (610) to rotate synchronously.

7. A high-lift slurry pump with sealing water according to claim 6, characterized in that, The impeller (610) and the rear guard plate (330) have a first gap (710) and a first lubrication cavity (720), and further include: A shaft seal water pipe (730) is provided on the stuffing box (510). The shaft seal water pipe (730) is used to supply high-pressure fluid into the stuffing box (510). The high-pressure fluid enters the first lubrication chamber (720) along the first gap (710). The high-pressure fluid is used to lubricate the impeller (610) and the rear guard plate (330).

8. A high-lift slurry pump with sealing water according to claim 6, characterized in that, The impeller (610) and the front guard plate (350) have a second gap (740) and a second lubrication chamber (750). The front guard plate (350) has a flow hole (760) that communicates with the second gap (740). The high-pressure fluid enters the second lubrication chamber (750) through the second gap (740) and is used to lubricate the second gap (740) and the front guard plate (350).

9. A high-lift slurry pump with sealing water according to claim 6, characterized in that, The impeller (610) has an inlet (611) and further includes: A suction liner (810) is provided on the pump cover (2), the suction liner (810) abuts against the side wall of the inlet (611), and the suction liner (810) has a screw hole (820). A tightening bolt (910) is provided on the pump cover (2). One end of the tightening bolt (910) abuts against the suction liner (810). The tightening bolt (910) is used to keep the suction liner (810) abutting against the inlet (611).

10. A high-lift slurry pump with sealing water according to claim 9, characterized in that, Also includes: An inhalation tube (920) is fitted onto the inhalation liner (810), and the inhalation tube (920) is used to protect the inhalation liner (810).

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