Solid-liquid separation device

Abstract

Embodiments of the present application relate to the field of separating particles from a liquid or separating a liquid from a solid, and in particular to a solid-liquid separation device, which comprises: a housing configured to form a containing cavity; a centrifugal assembly rotatably arranged in the containing cavity and configured to separate a solid-liquid mixture; an inlet-outlet assembly arranged on the housing and configured to allow the solid-liquid mixture to enter and allow the separated liquid to flow out of the centrifugal assembly; a collection member arranged in the containing cavity and configured to collect the solid material; and a driving assembly configured to drive the centrifugal assembly to rotate relative to the inlet-outlet assembly so as to separate the solid-liquid mixture; wherein the housing is configured to comprise a shell body and a detachable member detachably connected to the shell body, the shell body and the detachable member together form the containing cavity, and the collection member can be taken out of the shell body when the detachable member is detached from the shell body. The solid-liquid separation device provided by the embodiments of the present application can take out the separated solid material from the device without disassembling the centrifugal assembly, which is convenient for the operation of a robot.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of separating particles from a liquid or separating a liquid from a solid, and in particular to a solid-liquid separation device. BACKGROUND

[0002] The statements herein are merely provided to give a basic understanding of the application, and do not necessarily constitute the prior art.

[0003] When separating a liquid mixed with solid powder, the powder is usually suspended in the liquid, and separation is usually performed by centrifugation. After separation by centrifugation, the powder adheres to the inner wall of the centrifugal container and is not easy to remove, especially when the powder is radioactive, it is inconvenient to separate the radioactive powder from the inner wall of the centrifugal container by manual or mechanical hand. SUMMARY

[0004] In the following, a brief overview of the present application is given to provide a basic understanding of some aspects of the present application. It should be understood that this overview is not an exhaustive overview of the present application. It is not intended to identify key or important parts of the present application nor is it intended to limit the scope of the present application. Its purpose is merely to present some concepts in a simplified form as a prelude to the more detailed description of a later discussion.

[0005] To solve the above problems, embodiments of the present application provide a solid-liquid separation device, which comprises a housing, a centrifugal assembly, a liquid inlet and outlet assembly, a collection piece and a driving assembly. The housing is arranged to form a containing cavity; the centrifugal assembly is rotatably arranged in the containing cavity and used for separating solid-liquid mixture into liquid and solid material; the liquid inlet and outlet assembly is arranged on the housing and used for allowing the solid-liquid mixture to enter the centrifugal assembly and for allowing the separated liquid to flow out of the centrifugal assembly; the collection piece is arranged in the containing cavity and used for collecting the separated solid material; and the driving assembly is used for driving the centrifugal assembly to rotate relative to the liquid inlet and outlet assembly, so as to separate the solid-liquid mixture; wherein the housing is arranged to comprise a shell body and a detachable piece detachably connected with the shell body, the shell body and the detachable piece jointly form the containing cavity, and when the detachable piece is detached from the shell body, the collection piece can be taken out of the shell body.

[0006] The solid-liquid separation device provided by the embodiments of the present application collects the separated solid material by the collection piece, and when the detachable piece is detached from the shell body, the collection piece can be taken out of the shell body, so that the separated solid material and the collection piece can be taken out of the device together without detaching the centrifugal assembly, which is convenient for the mechanical hand operation. BRIEF DESCRIPTION OF DRAWINGS

[0007] Other objects and advantages of the present application will be apparent to those skilled in the art from the following description of embodiments of the present application, taken in conjunction with the accompanying drawings.

[0008] Figure 1 is a structural schematic diagram of a solid-liquid separation device provided by an embodiment of the present application.

[0009] Figure 2 is a sectional view of the solid-liquid separation device in Figure 1

[0010] Figure 3 is a structural schematic diagram of a solid-liquid separation device provided by an embodiment of the present application, with the removable part omitted.

[0011] Figure 4 is a sectional view of the solid-liquid separation device in Figure 3

[0012] Figure 5 is a structural schematic diagram of a solid-liquid separation device provided by an embodiment of the present application, with the outer shell omitted.

[0013] Figure 6 is a sectional view of the solid-liquid separation device in Figure 5

[0014] Figure 7 is an enlarged view of a part of the solid-liquid separation device in Figure 6

[0015] Figure 8 is an enlarged view of a part of the solid-liquid separation device in Figure 6

[0016] Figure 9 is an enlarged view of a part of the solid-liquid separation device in Figure 6

[0017] Figure 10 is a structural schematic diagram of a first shell segment of a solid-liquid separation device provided by an embodiment of the present application.

[0018] Figure 11 is a structural schematic diagram of a first shell segment, a first mounting part, a second mounting part, and a set of centrifugal units of a solid-liquid separation device provided by an embodiment of the present application, assembled.

[0019] Figure 12 is a structural schematic diagram of a second mounting part of a solid-liquid separation device provided by an embodiment of the present application.

[0020] Figure 13 is a sectional view of the second mounting part in Figure 12

[0021] Figure 14 ​​​​​​​is a top view of a centrifugal unit of the solid-liquid separation device provided by the embodiment of the present application.

[0022] Figure 15 is a structural schematic diagram of the inlet and outlet liquid assembly, the centrifugal main body, the second shell segment, the collecting piece and the driving assembly of the solid-liquid separation device provided by the embodiment of the present application after assembly.

[0023] Figure 16 is Figure 15 is a sectional view of the structure composed of the inlet and outlet liquid assembly, the centrifugal main body, the second shell segment, the collecting piece and the driving assembly in

[0024] Figure 17 is Figure 15 is a partial enlarged view of the structure of

[0025] Figure 18 is a structural schematic diagram of the outlet liquid fitting and the liquid suction piece of the solid-liquid separation device provided by the embodiment of the present application after assembly.

[0026] Figure 19 is a structural schematic diagram of the outlet liquid fitting and the annular body of the solid-liquid separation device provided by the embodiment of the present application after assembly.

[0027] Figure 20 is a structural schematic diagram of the inlet liquid fitting of the solid-liquid separation device provided by the embodiment of the present application.

[0028] Figure 21 is a structural schematic diagram of the second shell segment of the solid-liquid separation device provided by the embodiment of the present application.

[0029] Figure 22 is Figure 18 is a sectional schematic diagram of the outlet liquid fitting and the liquid suction piece after assembly.

[0030] Figure 23 is a sectional schematic diagram of the solid-liquid separation device provided by the embodiment of the present application after omitting the centrifugal assembly and the driving assembly.

[0031] Explanation of reference signs:

[0032] 100, solid-liquid separation device;

[0033] 10, centrifugal assembly; 11, centrifugal housing; 111, first housing segment; 1111, first pipe; 11111, feeding hole; 11112, recess; 1112, first cover; 1113, second cover; 11131, liquid outlet hole; 1114, inclined part; 1115, extension; 11151, cylindrical segment; 11152, third cover; 112, second housing segment; 1121, matching part; 11211, discharging guide surface; 113, third housing segment; 114, pressing part; 1101, centrifugal cavity; 1102, solid material outlet; 1103, feeding cavity; 12, centrifugal main body; 121, centrifugal unit; 1211, positioning matching part; 1212, through hole; 1213, centrifugal body; 12131, conical guide segment; 12132, connecting segment; 12133, groove; 1214, guide part; 122, first mounting part; 1221, positioning part; 123, second mounting part; 1231, material groove; 1232, guide segment; 1233, circular ring segment; 1234, connecting segment; 13, movable part; 131, movable guide surface; 14, pressure adjusting part; 141, first liquid inlet channel; 142, liquid outlet channel; 143, valve; 1431, valve body; 14311, channel; 1432, valve switch; 144, second liquid inlet channel; 15, ring cavity; 16, sealing cavity;

[0034] 20, liquid inlet and outlet assembly; 21, feeding part; 211, first pipe segment; 212, second pipe segment; 2121, cross section; 2122, curved surface; 2123, sealing groove; 213, limiting part; 2101, feeding ring groove; 2102, feeding through hole; 22, liquid outlet matching part; 221, notch; 23, liquid suction part; 231, spiral channel; 232, annular body; 2321, spiral groove; 2322, conical surface; 233, annular cover plate; 24, liquid temporary storage cavity; 25, liquid outlet channel;

[0035] 30, collecting part;

[0036] 40, driving assembly; 41, driving shaft; 411, first liquid inlet matching channel; 412, second liquid inlet matching channel; 401, first channel; 402, second channel; 4001, first ring groove; 4002, second ring groove; 4003, third ring groove;

[0037] 50, housing; 51, housing body; 511, bottom housing; 5111, bottom housing body; 51111, bottom housing ring groove; 51112, through hole; 5112, mounting member; 5113, bottom housing connecting member; 512, housing cover; 5121, slot; 5122, feeding slot; 5123, liquid outlet slot; 5124, ring groove; 5125, cover body; 5126, protrusion; 52, detachable member; 521, ring cover member; 522, first connecting member; 523, second connecting member; 53, accommodating cavity; 54, mounting slot;

[0038] 60, negative pressure suction pipeline;

[0039] 70, feeding pipeline;

[0040] 80, liquid outlet pipeline;

[0041] 90, dynamic sealing member; 91, bearing; 92, shaft sleeve; 921, shaft sleeve connecting member; 922, shaft sleeve body; 923, through hole.

[0042] It should be noted that the drawings are not necessarily drawn to scale, but are merely shown in a schematic manner to illustrate the application. DETAILED DESCRIPTION

[0043] In the following, exemplary embodiments of the present application will be described with reference to the drawings. In the description, not all features of the actual embodiments are described in order to make the description clear and brief. However, it should be appreciated that many embodiment-specific decisions must be made in the process of developing any such actual embodiment in order to achieve the specific goals of the developer, such as compliance with system- and business-related constraints, which can vary from one embodiment to another. Moreover, it should be appreciated that, while the development work can potentially be very complex and time-consuming, it is merely a routine task for those skilled in the art having the benefit of the present application.

[0044] It should also be noted that, in order not to obscure the application with details that are not necessary to understand the solutions according to the application, only the equipment structures and / or processing steps that are closely related to the solutions according to the application are shown in the drawings, and other details that are not closely related to the application are omitted.

[0045] Reference is made to Figure 2 and Figure 4The embodiment of the present application provides a solid-liquid separation device 100, which comprises a shell 50, a centrifugal assembly 10, a liquid inlet and outlet assembly 20, a collecting piece 30 and a driving assembly 40. The shell 50 is arranged to form a containing cavity 53; the centrifugal assembly 10 is rotatably arranged in the containing cavity 53 and used for separating solid-liquid mixture into liquid and solid material; the liquid inlet and outlet assembly 20 is arranged on the shell 50 and used for feeding the solid-liquid mixture into the centrifugal assembly 10 and for discharging the separated liquid out of the centrifugal assembly 10; the collecting piece 30 is arranged in the containing cavity 53 and used for collecting the separated solid material; and the driving assembly 40 is used for driving the centrifugal assembly 10 to rotate relative to the liquid inlet and outlet assembly 20, so that the solid-liquid mixture is separated; wherein the shell 50 is arranged to comprise a shell body 51 and a detachable piece 52 which is detachably connected with the shell body 51, and the shell body 51 and the detachable piece 52 jointly form the containing cavity 53, and when the detachable piece 52 is detached from the shell body 51, the collecting piece 30 can be taken out of the shell body 51.

[0046] The solid-liquid separation device 100 provided by the embodiment of the present application is arranged to collect the separated solid material by the collecting piece 30, and when the detachable piece 52 is detached from the shell body 51, the collecting piece 30 can be taken out of the shell body 51, so that the collecting piece 30 and the contained solid material can be taken out without detaching the centrifugal assembly 10.

[0047] In some embodiments, the solid material can be radioactive powder, and the separated liquid can also be radioactive. When the material to be separated is radioactive, the embodiment of the present application facilitates taking out the collecting piece 30 and the contained solid material by a mechanical hand, and is beneficial to reducing the radiation of the operator from the radioactive liquid and solid material.

[0048] Referring to Figure 2 , Figure 4 and Figure 23 , in some embodiments, the shell body 51 can comprise a bottom shell 511 and a shell cover 512 which are arranged at intervals, the collecting piece 30 is detachably arranged on the bottom shell 511, the driving assembly 40 is rotatably connected with the bottom shell 511, the liquid inlet and outlet assembly 20 is arranged on the shell cover 512, the detachable piece 52 is detachably connected with the shell cover 512 and the bottom shell 511, and the bottom shell 511, the shell cover 512 and the detachable piece 52 jointly form the containing cavity 53; when the detachable piece 52 is detached from the shell cover 512 and the bottom shell 511, the collecting piece 30 can be taken out of the shell body 51. The embodiment of the present application is arranged to comprise the bottom shell 511 and the shell cover 512, which are arranged at intervals, and the collecting piece 30 is detachably arranged on the bottom shell 511, so that the connection relationship between the components and the shell body 51 is reasonably arranged, and the components do not interfere with each other when realizing their respective functions.

[0049] Referring to Figure 4In some embodiments, the bottom shell 511 can include a bottom shell body 5111 and a mounting member 5112 disposed radially inward of the bottom shell body 5111, the mounting member 5112 and the bottom shell body 5111 collectively forming a mounting groove 54 in which the collecting member 30 is disposed. When the detachable member 52 is detached from the shell cover 512 and the bottom shell 511, the collecting member 30 can be taken out of the mounting groove 54. In this way, the mounting and detaching of the collecting member 30 are facilitated.

[0050] In some embodiments, the bottom wall of the collecting member 30 and the bottom wall of the mounting groove 54 are respectively provided with through holes for allowing liquid remaining in the solid material in the collecting member 30 to flow into the bottom shell body 5111, so as to facilitate further separation of the liquid remaining on the surface of the solid material. The bottom shell body 5111 is provided with an opening for allowing the liquid entering the bottom shell body 5111 from the collecting member 30 to flow out.

[0051] Referring to Figure 2 In some embodiments, the solid-liquid separation device 100 can further include a negative pressure suction pipeline 60 disposed in the bottom shell body 5111 and in fluid communication with the containing cavity 53, for forming a negative pressure environment in the containing cavity 53 to separate the liquid in the containing cavity 53. By separating the liquid in the containing cavity 53 through the negative pressure suction pipeline 60, the liquid can be recovered as much as possible.

[0052] Referring to Figure 4 In some embodiments, the bottom wall of the bottom shell body 5111 forms a bottom shell ring groove 51111 for allowing the liquid entering the containing cavity 53 to flow together, and the negative pressure suction pipeline 60 is in communication with the bottom shell ring groove 51111. In this way, the liquid in the containing cavity 53 can be separated as much as possible through the negative pressure suction pipeline 60, and the residue can be reduced. In some embodiments, the opening of the bottom shell body 5111 is disposed at the bottom shell ring groove 51111.

[0053] In some embodiments, the liquid inlet and outlet assembly 20 can include a feeding member 21, a liquid outlet matching member 22, and a liquid suction member 23. The feeding member 21 is disposed radially inward of the centrifugal assembly 10 to supply the solid-liquid mixed material to the centrifugal assembly 10; the liquid outlet matching member 22 is disposed radially outward of the feeding member 21, and the liquid outlet matching member 22 and the feeding member 21 cooperate to form a liquid outlet channel 25 therebetween; and the liquid suction member 23 is disposed to be able to suck the liquid separated from the centrifugal assembly 10 to the liquid outlet channel 25. In this way, the liquid inlet and outlet assembly 20 can not only supply the solid-liquid mixed material to the centrifugal cavity 1101, but also suck the separated liquid out.

[0054] In some embodiments, the liquid suction member 23 is connected to the liquid outlet matching member 22.

[0055] Referring to Figure 6 andFigure 9 In some embodiments, the feeding member 21 can be a tube.

[0056] Referring to Figure 9 and Figure 18 In some embodiments, the liquid suction member 23 can form a plurality of circumferentially distributed spiral channels 231, which are in fluid communication with the liquid outlet channel 25, and which are capable of sucking the liquid separated by the centrifugal assembly 10 into the liquid outlet channel 25 when the centrifugal assembly 10 rotates relative to the liquid inlet and outlet assembly 20. With the above arrangement, the liquid separated in the temporary storage cavity 24 is facilitated to enter the liquid outlet channel 25.

[0057] Referring to Figure 18 and Figure 19 In some embodiments, the liquid suction member 23 can include a ring-shaped body 232 and a ring-shaped cover plate 233. The ring-shaped body 232 is connected to the liquid outlet matching member 22, and a side of the ring-shaped body 232 facing the ring-shaped cover plate 233 forms a plurality of spiral grooves 2321 to jointly form a plurality of spiral channels 231 with the ring-shaped cover plate 233. The above arrangement of the liquid suction member 23 facilitates processing.

[0058] In some embodiments, the ring-shaped body 232 and the liquid outlet matching member 22 can be integrally formed. Referring to Figure 19 In some embodiments, the width of the spiral grooves 2321 located on the radially outer side of the ring-shaped body 232 is greater than the width of the spiral grooves 2321 located on the radially inner side of the ring-shaped body 232, so as to facilitate the liquid to enter the spiral channels 231.

[0059] Referring to Figure 20 In some embodiments, the feeding member 21 can include a first tube segment 211, a second tube segment 212, and a limiting portion 213. The first tube segment 211 is arranged on the radially inner side of the centrifugal assembly 10, and the second tube segment 212 and the liquid outlet matching member 22 form the liquid outlet channel 25 therebetween. The limiting portion 213 is arranged between the first tube segment 211 and the second tube segment 212, and is used to axially limit the liquid suction member 23.

[0060] Referring to Figure 20 In some embodiments, the circumferential surface of the second tube segment 212 includes a plurality of cut surfaces 2121 and a plurality of curved surfaces 2122, and two adjacent curved surfaces 2122 are connected by a cut surface 2121. Referring to Figure 22 The radially inner surface of the liquid outlet matching member 22 matches the curved surfaces 2122 of the second tube segment 212, and the radially inner surface of the liquid outlet matching member 22 and the cut surfaces 2121 form gaps, which form the liquid outlet channel 25.

[0061] Referring to Figure 9In some embodiments, the shell cover 512 is provided with a slot 5121, and the feeding member 21 and the liquid outlet fitting member 22 extend downward from the slot 5121. The shell cover 512 is also provided with a feeding groove 5122 in fluid communication with the feeding member 21. The solid-liquid mixture can enter the feeding member 21 through the feeding groove 5122.

[0062] Referring to Figure 6 , Figure 9 and Figure 20 In some embodiments, the part of the feeding member 21 facing the feeding groove 5122 can form a feeding ring groove 2101 and a plurality of feeding through holes 2102 in fluid communication with the feeding ring groove 2101, so that the solid-liquid mixture in the feeding groove 5122 can first enter the feeding ring groove 2101 and then enter the feeding member 21 through the plurality of feeding through holes 2102. Such a configuration facilitates the solid-liquid mixture to enter the feeding member 21 uniformly along the circumference of the feeding member 21, so as to enter the feeding cavity 1103 uniformly and then enter the feeding hole 11111 uniformly under the action of centrifugal force. The feeding ring groove 2101 is formed in the second pipe segment 212.

[0063] In some embodiments, the second pipe segment 212 further forms two sealing grooves 2123 arranged on both sides of the feeding ring groove 2101, for arranging sealing members to prevent the solid-liquid mixture in the feeding ring groove 2101 from leaking.

[0064] Referring to Figure 1 and Figure 2 In some embodiments, the solid-liquid separation device 100 can further include a feeding pipeline 70 arranged on the shell cover 512 and in fluid communication with the feeding ring groove 2101, for feeding the solid-liquid mixture into the feeding groove 5122.

[0065] Referring to Figure 6 and Figure 9 In some embodiments, the shell cover 512 can also be provided with a liquid outlet groove 5123 and an annular groove 5124 in fluid communication with the liquid outlet groove 5123, and the liquid outlet groove 5123 is in fluid communication with the liquid outlet passage 25 through the annular groove 5124. The liquid sucked into the liquid outlet passage 25 can flow into the liquid outlet groove 5123 through the annular groove 5124. Such a configuration facilitates the liquid to flow into the liquid outlet groove 5123 at a faster speed.

[0066] Referring to Figure 3 and Figure 4 In some embodiments, the solid-liquid separation device 100 can further include a liquid outlet pipeline 80 arranged on the shell cover 512 and in fluid communication with the liquid outlet groove 5123, for feeding the liquid in the liquid outlet groove 5123 to flow out.

[0067] Referring to Figure 18 and Figure 19In some embodiments, the liquid outlet fitting 22 can be a pipe, and a plurality of notches 221 are formed on the end of the liquid outlet fitting 22 away from the liquid suction fitting 23, so that the liquid in the liquid outlet channel 25 enters the annular groove 5124. In some embodiments, a sealing member is arranged between the liquid outlet fitting 22 and the shell cover 512 to prevent the liquid from flowing outward through the gap therebetween.

[0068] Referring to Figure 23 The shell cover 512 can include a cover body 5125 and a protruding portion 5126 connected to the cover body 5125, and the slot 5121 penetrates through the cover body 5125 and the protruding portion 5126. The feed slot 5122, the liquid outlet slot 5123, and the annular groove 5124 are formed in the protruding portion 5126.

[0069] The detachable member 52 includes an annular cover member 521 and a first connecting member 522 arranged radially outward of the annular cover member 521, and the bottom shell 511 further includes a bottom shell connecting member 5113 connected to the bottom shell body 5111, and the detachable member 52 is detachably connected to the bottom shell 511 through the first connecting member 522 and the bottom shell connecting member 5113. The detachable member 52 further includes a second connecting member 523 arranged radially inward of the annular cover member 521; and the second connecting member 523 is detachably connected to the cover body 5125.

[0070] Referring to Figures 2 to 6 In some embodiments, the centrifugal assembly 10 can include a centrifugal shell 11, a centrifugal body 12, a movable member 13, and a pressure adjusting member 14. The centrifugal shell 11 is arranged to form a centrifugal cavity 1101, and a plurality of solid material outlets 1102 are arranged on the radially outer side of the centrifugal shell 11 in the circumferential direction, for allowing the solid material in the centrifugal cavity 1101 to enter the collection member 30; the centrifugal body 12 is arranged in the centrifugal cavity 1101, for rotating together with the centrifugal shell 11 to separate the solid-liquid mixed material; the movable member 13 is movably arranged in the centrifugal cavity 1101; and the pressure adjusting member 14 is arranged in the centrifugal shell 11.

[0071] Referring to Figure 2 , Figure 4 and Figure 6In some embodiments, the driving assembly 40 is further configured to cooperate with the pressure adjusting member 14 to change the pressure on one side of the movable member 13, so that the movable member 13 can move between the first position in which the plurality of solid material outlets 1102 are opened and the second position in which the plurality of solid material outlets 1102 are closed; when the movable member 13 opens the plurality of solid material outlets 1102, the separated solid material in the centrifugal cavity 1101 can enter the collection member 30 through the plurality of solid material outlets 1102 under the centrifugal force. In the embodiments of the present application, the driving assembly 40 cooperates with the pressure adjusting member 14 to change the pressure on one side of the movable member 13, so that the movable member 13 can move between the first position in which the plurality of solid material outlets 1102 are opened and the second position in which the plurality of solid material outlets 1102 are closed, thereby enabling the solid material outlets 1102 to be opened or closed, facilitating the timely delivery of the separated solid material into the collection member 30.

[0072] In some embodiments, the movable member 13 and the centrifugal shell 11 can form a sealed cavity 16, and the pressure adjusting member 14 can be used to adjust the pressure in the sealed cavity 16. By adjusting the pressure in the sealed cavity 16, the movable member 13 can move between the first position and the second position, thereby enabling the solid material outlets 1102 to be opened or closed, facilitating the timely delivery of the separated solid material into the collection member 30.

[0073] Referring to Figure 2 , Figure 4 or Figure 6 In some embodiments, the pressure adjusting member 14 can include a first liquid inlet channel 141, a liquid outlet channel 142, a valve 143, and a second liquid inlet channel 144. The first liquid inlet channel 141 is formed in the centrifugal shell 11 and is used to provide fluid into the sealed cavity 16; the liquid outlet channel 142 is formed in the centrifugal shell 11 and is used to allow the fluid in the sealed cavity 16 to flow out; the valve 143 is used to close or open the liquid outlet channel 142; the second liquid inlet channel 144 is formed in the centrifugal shell 11 and is used to provide fluid to apply pressure to the valve 143, so that the valve 143 opens the liquid outlet channel 142, thereby allowing the fluid in the sealed cavity 16 to flow out through the liquid outlet channel 142, and the movable member 13 can move from the second position in which the plurality of solid material outlets 1102 are closed to the first position in which the plurality of solid material outlets 1102 are opened.

[0074] In some embodiments, the centrifugal shell 11 forms a channel, one end of the channel penetrates the centrifugal shell 11, the other end of the channel is in fluid communication with the liquid outlet channel 142, and the valve 143 is arranged in the channel. The valve 143 includes a valve body 1431, a valve switch 1432, and a reset member. The valve body 1431 is fixedly arranged in the channel, and the valve body 1431 forms a valve channel 14311 that is in fluid communication with the liquid outlet channel 142 and the containing cavity 53. The valve switch 1432 is movably arranged in the channel, and the reset member is used to provide a force to the valve switch 1432 to move towards the valve body 1431, so that the valve switch 1432 closes the valve channel 14311 of the valve body 1431, and disconnects the passage between the valve channel 14311 and the liquid outlet channel 142. When the fluid enters the second liquid inlet channel 144, under the action of the fluid pressure, the valve switch 1432 moves away from the valve body 1431, thereby conducting the valve channel 14311 and the liquid outlet channel 142. At this time, the fluid in the sealing cavity 16 can enter the valve channel 14311 through the liquid outlet channel 142, and flow to the outside of the centrifugal shell 11 (for example, flow into the containing cavity 53 formed by the housing 50 mentioned below).

[0075] Referring to Figure 6 and Figure 7 In some embodiments, the drive assembly 40 can include a drive shaft 41 connected to the centrifugal shell 11 to drive the centrifugal shell 11 to rotate. In some embodiments, the drive shaft 41 forms a first liquid inlet matching channel 411 and a second liquid inlet matching channel 412 for supplying fluid to the first liquid inlet channel 141 and the second liquid inlet channel 144, respectively. The solid-liquid separation device 100 provided by the embodiments of the present application can supply fluid to the liquid inlet channel formed in the centrifugal shell 11 by arranging the liquid inlet matching channel on the drive shaft 41, thereby changing the pressure in the sealing cavity 16 and realizing the movement of the driving movable part 13 between the first position of opening the plurality of solid material outlets 1102 and the second position of closing the plurality of solid material outlets 1102.

[0076] Referring to Figure 6 and Figure 7 In some embodiments, the drive shaft 41 can form a first ring groove 4001, a second ring groove 4002, and a third ring groove 4003, which are spaced apart along the axial direction. The first ring groove 4001 and the second ring groove 4002 are connected to an external fluid source through a rotary joint, respectively, and the third ring groove 4003 is in fluid communication with the plurality of second liquid inlet channels 144.

[0077] Referring to Figure 6 and Figure 7In some embodiments, the drive shaft 41 further forms a first channel 401 and a second channel 402 extending axially. The first channel 401 is in fluid communication with the second ring groove 4002, and the first channel 401 is in fluid communication with the first liquid inlet channel 141; so as to supply fluid to the first liquid inlet channel 141 through the second ring groove 4002, so as to increase the fluid in the sealed cavity 16, and increase the pressure. The second channel 402 is used to communicate the first ring groove 4001 and the third ring groove 4003, so as to supply fluid to the second liquid inlet channel 144 through the first ring groove 4001. The fluid can be water, for example.

[0078] Referring to Figure 6 In some embodiments, the first liquid inlet matching channel 411 can include the first channel 401 and the second ring groove 4002, and the second liquid inlet matching channel 412 can include the first ring groove 4001, the second channel 402 and the third ring groove 4003.

[0079] Referring to Figure 6 and Figure 8 In some embodiments, the centrifugal body 12 can include a plurality of centrifugal units 121 arranged axially in layers, each centrifugal unit 121 being used to separate the solid-liquid mixture by rotation. The plurality of centrifugal units 121 are arranged so that the solid-liquid mixture can be distributed to the plurality of centrifugal units 121 for simultaneous separation of the solid-liquid mixture by the plurality of centrifugal units 121. The embodiments of the present application can simultaneously separate the solid-liquid mixture by the plurality of centrifugal units 121, which is beneficial to improve the separation efficiency.

[0080] In some embodiments, the centrifugal unit 121 is arranged so that when it rotates, the liquid material in the solid-liquid mixture can move upward along the centrifugal unit 121, and the solid material in the solid-liquid mixture can move downward along the centrifugal unit 121, thereby facilitating the solid material and the liquid to exit the centrifugal cavity 1101 respectively.

[0081] In some embodiments, referring to Figure 8 The centrifugal housing 11 forms a feed cavity 1103 radially inside the centrifugal cavity 1101, and the solid-liquid mixture from the feed and discharge assembly 20 can enter the feed cavity 1103. The radially inner side of the centrifugal housing 11 is circumferentially provided with a plurality of feed holes 11111 in fluid communication with the feed cavity 1103, and the solid-liquid mixture entering the feed cavity 1103 can enter the centrifugal cavity 1101 via the plurality of feed holes 11111 under the action of centrifugal force.

[0082] In some embodiments, the feeding member 21 has an outlet, and the outlet of the feeding member 21 is located in the feeding cavity 1103, so that the solid-liquid mixture material flowing out of the outlet of the feeding member 21 can enter the feeding cavity 1103. When the feeding member 21 is a pipe, the outlet of the pipe is a side port of the pipe located in the feeding cavity 1103.

[0083] Referring to Figure 2 , Figure 4 or Figure 6 In some embodiments, the centrifugal housing 11 can include a first housing segment 111 cooperating with the liquid inlet and outlet assembly 20, a second housing segment 112 connected with the driving assembly 40, and a third housing segment 113 connecting the first housing segment 111 and the second housing segment 112. The first housing segment 111, the second housing segment 112, and the third housing segment 113 jointly form an annular centrifugal cavity 1101, and the pressure adjusting member 14 is arranged on the second housing segment 112.

[0084] In some embodiments, the first housing segment 111 forms the feeding cavity 1103, and a feeding hole 11111 is formed in the first housing segment 111.

[0085] Referring to Figure 6 and Figure 9 In some embodiments, the first housing segment 111 can include a first pipe 1111 and a first cover 1112 closing one end of the first pipe 1111. The first pipe 1111 is formed with a feeding hole 11111 adjacent to one side of the first cover 1112 for the solid-liquid mixture material to enter the centrifugal cavity 1101; the solid-liquid mixture material enters the first pipe 1111 through the liquid inlet and outlet assembly 20 and enters the centrifugal cavity 1101 through the feeding hole 11111. The first pipe 1111 and the first cover 1112 form the feeding cavity 1103. In such embodiments, when the centrifugal assembly 10 rotates, the solid-liquid mixture material can directly enter the centrifugal cavity 1101 for separation under the action of centrifugal force after entering the first pipe 1111 through the liquid inlet and outlet assembly 20, which is beneficial to improve the feeding efficiency and the separation efficiency.

[0086] Referring to Figure 6 and Figure 9 In some embodiments, the first housing segment 111 can further include a second cover 1113 extending radially outward at the other end of the first pipe 1111, and an extension 1115 extending from the second cover 1113 away from the first cover 1112, and the extension 1115 and the second cover 1113 jointly form the liquid temporary storage cavity 24. In such embodiments, when the centrifugal assembly 10 rotates, the liquid separated from the solid powder under the action of centrifugal force can directly enter the liquid temporary storage cavity 24 for separation from the solid material under the action of centrifugal force without other additional operations.

[0087] Referring toFigure 10 In some embodiments, the second cover 1113 is provided with a liquid outlet hole 11131 for the liquid in the centrifugal cavity 1101 to enter the liquid temporary storage cavity 24 under the centrifugal force; the liquid inlet and outlet assembly 20 is arranged to be capable of sucking out the liquid in the liquid temporary storage cavity 24. The solid-liquid separation device 100 provided by the embodiments of the present application forms the liquid temporary storage cavity 24 by the first shell segment 111, and arranges the liquid outlet hole 11131 communicating the centrifugal cavity 1101 and the liquid temporary storage cavity 24, so that the liquid centrifugally separated can enter the liquid temporary storage cavity 24 and be sucked out by the liquid inlet and outlet assembly 20. The embodiments of the present application can avoid that a large amount of liquid remains in the centrifugal cavity 1101, affecting the continuous separation of the material in the centrifugal cavity 1101, and facilitate the taking out of the separated liquid from the solid-liquid separation device 100.

[0088] In some embodiments, the extension 1115 can include a cylindrical segment 11151 and a third cover 11152 extending radially inwardly and downwardly from the cylindrical segment 11151 away from the second cover 1113.

[0089] Referring to Figure 6 and Figure 9 In some embodiments, the first shell segment 111 can further include an inclined portion 1114 extending radially outwardly and downwardly from the second cover 1113 to the third shell segment 113, and the inclined portion 1114 faces the centrifugal unit 121.

[0090] Referring to Figure 5 , Figure 6 and Figure 16 The collecting member 30 is arranged radially outwardly of the second shell segment 112, and the second shell segment 112 is circumferentially provided with a plurality of solid material outlets 1102 for the solid material in the centrifugal cavity 1101 to enter the collecting member 30. The solid-liquid separation device 100 provided by the embodiments of the present application is provided with a plurality of solid material outlets 1102 on the second shell segment 112, and the collecting member 30 is arranged radially outwardly of the second shell segment 112, so that the solid material can enter the collecting member 30 through the solid material outlets 1102 under the centrifugal force, which is beneficial to improve the efficiency of the solid material in the centrifugal cavity 1101 entering the collecting member 30, and further improve the separation efficiency.

[0091] Referring to Figure 7 In some embodiments, the second shell segment 112 can be formed with a receiving hole, and the valve 143 can be arranged in the receiving hole. Referring to Figure 2 , Figure 4 or Figure 6 In some embodiments, the first liquid inlet channel 141, the second liquid inlet channel 144 and the liquid outlet channel 142 can all be formed in the second shell segment 112.

[0092] Referring to Figure 6 andFigure 8 In some embodiments, the centrifugal main body 12 can further comprise a first mounting member 122 and a second mounting member 123. The first mounting member 122 is sleeved on the first pipe member 1111, and the plurality of centrifugal units 121 are sleeved on the first mounting member 122. The second mounting member 123 is connected with the end of the first mounting member 122 away from the second cover member 1113, and is connected with the second shell segment 112. The plurality of centrifugal units 121 are stacked on the second mounting member 123. The solid-liquid mixture flow entering the centrifugal cavity 1101 through the feed hole 11111 passes through the second mounting member 123 and is distributed to the plurality of centrifugal units 121. By arranging the centrifugal main body 12 in the above structure, the solid-liquid mixture entering through the feed hole 11111 can be distributed to each centrifugal unit 121, thereby facilitating the separation efficiency of the centrifugal units 121.

[0093] In some embodiments, all the centrifugal units 121 are clamped by the inclined portion 1114 and the second mounting member 123, so as to realize the positioning of the centrifugal units 121.

[0094] Referring to Figure 2 , Figure 4 or Figure 6 In some embodiments, the driving shaft 41 can be connected with the second mounting member 123. In some embodiments, the first pipe member 1111 is coaxial with the driving shaft 41.

[0095] Referring to Figure 11 In some embodiments, the first mounting member 122 is provided with a positioning portion 1221, and the centrifugal unit 121 is provided with a positioning matching portion 1211. By matching the positioning portion 1221 and the positioning matching portion 1211, the first mounting member 122 and the centrifugal unit 121 are circumferentially relatively stationary, so that the centrifugal unit 121 and the first mounting member 122 rotate together. The first mounting member 122 can be connected with the second mounting member 123 by a fastener, so that when the second mounting member 123 is driven to rotate by the driving shaft 41, the first mounting member 122 and the centrifugal unit 121 can also be driven to rotate together.

[0096] In some embodiments, the positioning portion 1221 can be a protrusion, and the positioning matching portion 1211 can be a groove.

[0097] Referring to Figure 8 In some embodiments, an annular cavity 15 is formed between the first mounting member 122 and the first pipe member 1111, and the annular cavity 15 is in communication with the feed hole 11111. The solid-liquid mixture can enter the annular cavity 15 through the feed hole 11111.

[0098] Referring to Figure 12In some embodiments, the second mounting member 123 is provided with a plurality of troughs 1231 distributed in the circumferential direction, the troughs 1231 being in communication with the annular cavity 15, so that the solid-liquid mixture can enter the troughs 1231 through the annular cavity 15 and then enter the centrifugal cavities 1101.

[0099] Referring to Figure 6 and Figure 10 In some embodiments, the first pipe member 1111 is provided with a recessed portion 11112 on the side facing the first cover member 1112, the feed hole 11111 being formed in the recessed portion 11112, and the annular cavity 15 being formed between the recessed portion 11112 and the first mounting member 122. The outer diameter of the recessed portion 11112 is smaller than that of the other portions of the first pipe member 1111. The first cover member 1112 is in abutment with the recessed portion 11112, the recessed portion 11112 is in abutment with the second mounting member 123, and the first cover member 1112 is embedded in the second mounting member 123 and is in sealed connection with the second mounting member 123.

[0100] Referring to Figure 13 In some embodiments, the second mounting member 123 can include a tapered flow guide section 1232, a connecting section 1234 located on the radially inner side, and a circular ring section 1233 connecting the flow guide section 1232 and the connecting section 1234. The connecting section 1234 is located outside the centrifugal cavities 1101 and is connected to the drive shaft 41. In some embodiments, the troughs 1231 extend from the circular ring section 1233 to the flow guide section 1232.

[0101] The connecting section 1234 forms a groove with an upper opening, and the first cover member 1112 is embedded in the groove. The first cover member 1112 and the connecting section 1234 are in sealed fit through a sealing ring to prevent liquid from entering below the groove.

[0102] Referring to Figures 14 to 17 In some embodiments, each centrifugal unit 121 is provided with a plurality of through holes 1212, each through hole 1212 being located between two troughs 1231, so that the solid-liquid mixture in the troughs 1231 can flow to the centrifugal units 121 through the through holes 1212 under the action of centrifugal force, which is conducive to improving the separation efficiency of the centrifugal units 121.

[0103] In some embodiments, the number of centrifugal units 121 can be more than 10. In some embodiments, the gap between two adjacent centrifugal units 121 is 1-2 mm, so that the solid-liquid mixture entering the troughs 1231 can flow to the centrifugal units 121 through the through holes 1212 of the centrifugal units 121 under the action of centrifugal force.

[0104] Referring to Figure 14In some embodiments, the centrifugal unit 121 can include a centrifugal body 1213 and a plurality of flow guides 1214 formed on the centrifugal body 1213, the surface of the flow guides 1214 protruding from the surface of the centrifugal body 1213. See Figure 14 In some embodiments, the solid-liquid mixture can flow through the centrifugal body 1213, each through-hole 1212 being located on the centrifugal body 1213 between two adjacent flow guides 1214, so that the solid-liquid mixture flowing through the centrifugal body 1213 can rotate synchronously with the centrifugal body 1213 as much as possible in the circumferential direction; thereby facilitating the liquid to flow upward along the centrifugal body 1213 and the solid material to flow downward along the centrifugal body 1213, and further improving the separation efficiency.

[0105] In some embodiments, the number of flow guides 1214 can be 4-8.

[0106] See Figure 11 and Figure 14 In some embodiments, the side of the centrifugal body 1213 facing the first mounting member 122 can form a plurality of grooves 12133, the grooves 12133 of each centrifugal unit 121 being aligned respectively, so that the corresponding grooves 12133 of all centrifugal units 121 can form a plurality of channels extending along the first mounting member 122. In this way, the liquid flowing upward along the centrifugal body 1213 can enter the liquid inlet / outlet assembly 20 through the plurality of channels, facilitating the movement of the liquid to the liquid inlet / outlet assembly 20, and thereby improving the separation efficiency.

[0107] See Figure 11 and Figure 14 In some embodiments, the flow guides 1214 can be arc-shaped, wherein the arc-shaped surface extends from the radially inner side of the centrifugal body 1213 to the radially outer side of the centrifugal body 1213, so as to achieve a better flow guiding effect.

[0108] See Figure 16 In some embodiments, when all centrifugal units 121 are sleeved on the first mounting member 122, the through-holes 1212 of each centrifugal unit 121 are axially aligned respectively, and the flow guides 1214 of each centrifugal unit 121 are aligned respectively. In such embodiments, it is beneficial to enable the solid-liquid mixture in the trough 1231 to flow rapidly to each centrifugal unit 121 through the through-hole 1212 under the action of centrifugal force.

[0109] See Figure 11 and Figure 14In some embodiments, the centrifugal body 1213 can include a tapered flow guide section 12131 and a connecting section 12132. The tapered flow guide section 12131 is configured to allow the liquid to flow along the surface of the tapered flow guide section 12131 towards the liquid inlet / outlet assembly 20 under the centrifugal force, and allow the solid material to move along the surface of the tapered flow guide section 12131 towards a direction opposite to the liquid flow direction, so as to separate the liquid from the solid material in the solid-liquid mixture. The connecting section 12132 is sleeved on the first mounting member 122 and is configured to be relatively stationary with the first mounting member 122 in the circumferential direction. In this way, when the first mounting member 122 rotates with the second mounting member 123, the centrifugal body 1213 can be driven to rotate, and at the same time, the liquid and the solid material can be separated by virtue of the different movement directions of the liquid and the solid material on the surface of the tapered flow guide section 12131.

[0110] participate Figure 11 and Figure 14 In some embodiments, the through hole 1212 and the flow guide member 1214 can be arranged on the tapered flow guide section 12131. The positioning and fitting part 1211 is arranged on the connecting section 12132. In this way, after the solid-liquid mixture flows to the tapered flow guide section 12131 through the through hole 1212, the solid-liquid mixture can be driven to rotate synchronously with the centrifugal body 1213 in the circumferential direction by the flow guiding effect of the flow guide member 1214.

[0111] In some embodiments, the tapered flow guide section 12131 extends upwardly and inclines towards the connecting section 12132 from the lower end thereof.

[0112] Referring to Figure 11 and Figure 14 In some embodiments, the recess 12133 can be formed on the side of the connecting section 12132 facing the first mounting member 122.

[0113] Referring to Figure 16 In some embodiments, the adjacent two centrifugal units 121 are pressed together, and the tapered flow guide sections 12131 of the adjacent two centrifugal units 121 are separated by the flow guide member 1214 to form a gap for fluid flow. By separating the gap by means of the flow guide member 1214, it is easier to realize that the gap between the adjacent two centrifugal units 121 is only 1-2 mm.

[0114] Referring to Figure 2 , Figure 4 and Figure 6 In some embodiments, the movable member 13 can also be used to guide the separated solid material, so that the separated solid material can enter the collection member 30 through the material outlet. In some embodiments, the separated solid material can enter the collection member 30 under the centrifugal action of the centrifugal body 12 and the guiding action of the movable member 13.

[0115] Referring toFigure 2 、 Figure 4 or Figure 6 In some embodiments, the movable member 13 forms a movable guide surface 131, which enables the solid material entering the movable member 13 to move along the movable guide surface 131 towards the solid material outlet 1102 under the action of centrifugal force, so that when the movable member 13 opens the solid material outlet 1102 of the centrifugal shell 11, the solid material can enter the solid material outlet 1102 of the centrifugal shell 11. This arrangement facilitates the movement of the solid material entering the movable member 13 along the movable guide surface 131 towards the solid material outlet 1102, thereby improving the efficiency of the solid material entering the collection member 30.

[0116] In some embodiments, the movable guide surface 131 is formed on the surface of the movable member 13 facing away from the second shell segment 112, and the movable guide surface 131 can be a conical surface extending obliquely from bottom to top towards the radial outside.

[0117] Referring to Figure 2 、 Figure 4 or Figure 6 In some embodiments, the movable member 13 has two radial ends respectively facing the second shell segment 112, and a sealing member is arranged between the radial end surface of the movable member 13 facing the second shell segment 112 and the second shell segment 112 to achieve sealing. In some embodiments, the sealing member can be a rubber sealing ring.

[0118] Referring to Figure 2 、 Figure 4 or Figure 6 In some embodiments, the surface of the movable member 13 facing the second shell segment 112 along its axial direction is adapted to the surface of the second shell segment 112 facing the movable member 13. This arrangement makes the radial thickness of the sealing cavity 16 uniform, thereby facilitating the uniform application of pressure by the fluid in the sealing cavity 16 to the movable member 13 during the adjustment of the pressure in the sealing cavity 16 by the pressure adjusting member 14.

[0119] In some embodiments, the surface of the movable member 13 facing away from the second shell segment 112 along its axial direction includes a mating surface cooperating with the third shell segment 113, a movable guide surface 131, an annular surface, and a conical surface parallel to the second mounting member 123, which together form an annular accommodating groove at the bottom of the centrifugal cavity 1101.

[0120] Referring to Figure 16In some embodiments, the second shell segment 112 can form a plurality of discharge guide surfaces 11211, each of which extends to a corresponding one of the solid material outlets 1102, and facilitates the solid material to enter the solid material outlet 1102 under the centrifugal force through the guidance of the discharge guide surfaces 11211. In some embodiments, the discharge guide surfaces 11211 of the second shell segment 112 have the same rotational direction as the guide member 1214 of the centrifugal unit 121.

[0121] Referring to Figure 16 and Figure 21 In some embodiments, the second shell segment 112 can form a plurality of cooperating members 1121 for cooperating with the third shell segment 113. Each of the cooperating members 1121 is formed between two adjacent solid material outlets 1102, and the discharge guide surfaces 11211 are formed on the surface of the cooperating member 1121 facing the centrifugal body 12. Such arrangement facilitates the assembly of the third shell segment 113 with the second shell segment 112, and facilitates the solid material to move along the inner wall of the third shell segment 113 towards the solid material outlet 1102 under the centrifugal force. Figure 7 The third shell segment 113 is pressed against the cooperating member 1121, and is tightly sealed with the second shell segment 112 by the pressing member 114. The side of the third shell segment 113 facing the cooperating member 1121 is provided with a sealing member.

[0122] Referring to Figure 6 and Figure 9 In some embodiments, the extension 1115 and the second cover member 1113 jointly form the liquid temporary storage chamber 24. Referring to Figure 9 In some embodiments, there is a gap between the liquid suction member 23 and the second cover member 1113, and a gap between the first pipe member 1111 and the feed member 21, so that the centrifugal assembly 10 can rotate relative to the feed and discharge assembly 20. In some embodiments, the liquid temporary storage chamber 24 is located on the axial side of the centrifugal chamber 1101. In some embodiments, the liquid suction member 23 is arranged in the liquid temporary storage chamber 24.

[0123] Referring to Figure 9 and Figure 18 In some embodiments, when the centrifugal shell 11 rotates relative to the feed and discharge assembly 20, the spiral channel 231 can suck the liquid separated by the centrifugal assembly 10 into the discharge channel 25. Through the above arrangement, it is beneficial for the liquid separated in the liquid temporary storage chamber 24 to enter the discharge channel 25.

[0124] It is easy to understand that when the centrifugal shell 11 rotates relative to the feed and discharge assembly 20, the liquid in the liquid temporary storage chamber 24 will also rotate. Due to the relative rotation between the liquid and the spiral channel 231, the liquid will be sucked into the spiral channel 231.

[0125] Referring to Figure 14 andFigure 18 In some embodiments, the spiral channel 231 of the liquid suction member 23 is opposite in rotation direction to the flow guide 1214 of the centrifugal unit 121, so that the liquid separated by the centrifugal unit 121 can be sucked into the liquid outlet channel 25.

[0126] Referring to Figure 18 and Figure 19 , the side of the annular body 232 opposite to the annular cover plate 233 forms a tapered surface 2322 for guiding the liquid in the liquid temporary storage cavity 24 to flow towards the inlet of the spiral channel 231.

[0127] Referring to Figure 20 In some embodiments, the first pipe segment 211 is arranged on the radially inner side of the centrifugal shell 11, and the solid-liquid mixture material flows out of the first pipe segment 211 and enters the centrifugal cavity 1101 through the feed hole 11111 on the centrifugal shell 11. In some embodiments, the limiting portion 213 can avoid the liquid suction member 23 from contacting the bottom wall of the liquid temporary storage cavity 24 by axially limiting the liquid suction member 23.

[0128] Referring to Figure 4 and Figure 23 In some embodiments, the solid-liquid separation device 100 can further include a dynamic seal 90, and the bottom shell body 5111 is sealingly connected with the drive shaft 41 through the dynamic seal 90. The dynamic seal 90 can include a shaft sleeve 92 and a plurality of bearings 91. The bearings 91 are arranged on the shaft sleeve 92. The shaft sleeve 92 is sealingly connected with the bottom shell body 5111, and the bearings 91 are sealingly connected with the drive shaft 41.

[0129] In some embodiments, referring to Figure 23 , the bottom wall of the bottom shell body 5111 forms a through hole 51112, and the shaft sleeve 92 is arranged in the through hole 51112. In some embodiments, the shaft sleeve 92 can include a shaft sleeve connecting piece 921 and a shaft sleeve body 922, the bearings 91 are arranged on the shaft sleeve body 922, and the shaft sleeve body 922 is arranged in the through hole 51112; the shaft sleeve connecting piece 921 is formed at one end of the shaft sleeve body 922 close to the bottom shell body 5111, the diameter of the shaft sleeve connecting piece 921 is greater than the diameter of the through hole 51112, and the shaft sleeve connecting piece 921 is sealingly connected with the bottom shell body 5111.

[0130] In some embodiments, the shaft sleeve 92 is provided with a through hole 923, and the drive shaft 41 can pass through the through hole 923 of the shaft sleeve 92 and extend into the containing cavity 53.

[0131] For the embodiments of the present application, it also needs to be explained that the embodiments of the present application and the features in the embodiments can be combined with each other to obtain new embodiments without conflict.

[0132] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A solid-liquid separation device, characterized by, The centrifugal separator comprises: a housing configured to form a receiving cavity; a centrifugal assembly rotatably arranged in the receiving cavity for separating a solid-liquid mixture into liquid and solid materials; an inlet-outlet assembly arranged in the housing for allowing the solid-liquid mixture to enter the centrifugal assembly and for allowing the separated liquid to flow out of the centrifugal assembly; a collecting member arranged in the receiving cavity for collecting the separated solid materials; a driving assembly for driving the centrifugal assembly to rotate relative to the inlet-outlet assembly so as to separate the solid-liquid mixture; wherein the housing is configured to comprise a housing body and a detachable member detachably connected with the housing body, the housing body and the detachable member jointly form the receiving cavity, and the collecting member can be taken out of the housing body when the detachable member is detached from the housing body; the housing body comprises: a bottom shell and a cover shell arranged in a spaced manner, the collecting member is detachably arranged in the bottom shell, the driving assembly is rotatably connected with the bottom shell, and the inlet-outlet assembly is arranged in the cover shell, the detachable member is detachably connected with the cover shell and the bottom shell, and the bottom shell, the cover shell and the detachable member jointly form the receiving cavity; the collecting member can be taken out of the housing body when the detachable member is detached from the cover shell and the bottom shell; the bottom shell comprises a bottom shell body and a mounting member arranged on the radially inner side of the bottom shell body, the mounting member and the bottom shell body jointly form a mounting groove, and the collecting member is arranged in the mounting groove; a through hole is arranged on the bottom wall of the collecting member and the bottom wall of the mounting groove respectively for allowing the liquid remaining in the solid materials in the collecting member to flow into the bottom shell body.

2. The apparatus of claim 1, wherein, Further comprising: a negative pressure suction pipeline arranged in the bottom shell body and in fluid communication with the receiving cavity for forming a negative pressure environment in the receiving cavity to separate the liquid in the receiving cavity.

3. The apparatus of claim 2, wherein, a bottom wall of the bottom shell body forms a bottom shell annular groove for allowing the liquid entering the receiving cavity to flow together; the negative pressure suction pipeline is in communication with the bottom shell annular groove.

4. The apparatus of claim 1, wherein, the inlet-outlet assembly comprises: a feeding member arranged on the radially inner side of the centrifugal assembly for supplying the solid-liquid mixture to the centrifugal assembly; an outlet fitting member arranged on the radially outer side of the feeding member, the outlet fitting member is matched with the feeding member to form an outlet channel between the outlet fitting member and the feeding member; a liquid suction member arranged to be capable of sucking the liquid separated by the centrifugal assembly into the outlet channel.

5. The apparatus of claim 4, wherein, the cover shell is provided with a slot, and the feeding member and the outlet fitting member extend downward from the slot; the cover shell is further provided with a feeding groove in fluid communication with the feeding member.

6. The apparatus of claim 5, wherein, a part of the feeding member facing the feeding groove forms a feeding annular groove and a plurality of feeding through holes in fluid communication with the feeding annular groove, so that the solid-liquid mixture in the feeding groove can first enter the feeding annular groove and then enter the feeding member through the plurality of feeding through holes.

7. The apparatus of claim 4, wherein, the cover shell is further provided with an outlet groove and an annular groove in fluid communication with the outlet groove, and the outlet groove is in fluid communication with the outlet channel through the annular groove.

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