Solid-liquid separation apparatus for separating a solid-liquid mixture into liquid and solid materials

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 for separating a solid-liquid mixture into a liquid and a solid material. The device comprises: a housing configured to form a receiving cavity; a centrifugal assembly rotatably arranged in the receiving cavity and configured to separate the solid-liquid mixture into the liquid and the solid material; a collecting member arranged in the receiving cavity and configured to collect the separated solid material; and a driving assembly configured to drive the centrifugal assembly to rotate relative to the housing so as to separate the solid-liquid mixture. The centrifugal assembly comprises a centrifugal casing and a centrifugal body. The centrifugal casing is configured to form a centrifugal cavity and a liquid temporary storage cavity in fluid communication. The centrifugal body is arranged in the centrifugal cavity and configured to separate the solid-liquid mixture and allow the separated liquid to enter the liquid temporary storage cavity. The solid-liquid separation device provided by embodiments of the present application facilitates the removal of the separated liquid from the solid-liquid separation device.

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 for separating a solid-liquid mixture into a liquid and a solid material. BACKGROUND

[0002] The statements herein are merely provided to give a basic understanding of the present application and are not necessarily intended to be a complete description of the prior art.

[0003] When separating a liquid mixed with a solid powder, the powder is usually suspended in the liquid, and separation is usually performed by centrifugation. After separation by centrifugation, the separated liquid remains in the centrifugal device, affecting the continuous separation of the material in the centrifugal device, and the centrifugal device needs to be disassembled to pour out the liquid after separation, which is not easy to operate. In particular, when the liquid is radioactive, it is not convenient to open the centrifugal device manually or by using a mechanical hand to take out the radioactive liquid in it due to the influence of radioactivity. SUMMARY

[0004] A brief summary of the present application is presented in the following to give a basic understanding of some aspects of the present application. It should be understood that this summary is not a comprehensive summary of the present application. It is not intended to determine the key or important parts of the present application, nor to limit the scope of the present application. Its purpose is only to give some concepts in a simplified form as a prelude to the more detailed description discussed later.

[0005] To solve the above problems, embodiments of the present application provide a solid-liquid separation device for separating a solid-liquid mixture into a liquid and a solid material, which comprises a housing, a centrifugal 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 the solid-liquid mixture into a liquid and a solid material; 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 centrifugal assembly comprises a centrifugal shell and a centrifugal body, the centrifugal shell is arranged to form a fluidly connected centrifugal cavity and a liquid temporary storage cavity, and the centrifugal body is arranged in the centrifugal cavity and is arranged to separate the solid-liquid mixture and make the separated liquid enter the liquid temporary storage cavity.

[0006] The solid-liquid separation device provided by the embodiments of the present application can make the separated liquid enter the liquid temporary storage cavity which is in fluid communication with the centrifugal cavity through the centrifugal body after separating the solid-liquid mixture, so as to avoid a large amount of liquid remaining in the centrifugal cavity, affecting the continuous separation of the material in the centrifugal cavity, and facilitating the taking out of the separated liquid from the solid-liquid separation device. BRIEF DESCRIPTION OF DRAWINGS

[0007] Other objects and advantages of the present application will be more fully apparent from the following description taken in connection with the accompanying drawings, in which:

[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 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.

[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 a solid-liquid separation device provided by an embodiment of the present application.

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

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

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

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

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

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

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

[0029] Figure 22 is a sectional schematic diagram of an outlet liquid fitting and a liquid suction piece shown in Figure 18

[0030] Figure 23 is a sectional schematic diagram of a solid-liquid separation device provided by an embodiment of the present application after omitting a centrifugal assembly and a 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 1 and Figure 2The embodiment of the present application provides a solid-liquid separation device 100, which comprises a shell 50, a centrifugal assembly 10, 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 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 shell 50, so that the solid-liquid mixture is separated; wherein the centrifugal assembly 10 can comprise a centrifugal shell 11 and a centrifugal main body 12, the centrifugal shell 11 is arranged to form a fluid-communicating centrifugal cavity 1101 and a liquid temporary storage cavity 24, and the centrifugal main body 12 is arranged in the centrifugal cavity 1101 and arranged to separate the solid-liquid mixture and make the separated liquid enter the liquid temporary storage cavity 24.

[0046] The solid-liquid separation device 100 provided by the embodiment of the present application can separate the solid-liquid mixture through the centrifugal main body 12, make the separated liquid enter the liquid temporary storage cavity 24 which is in fluid communication with the centrifugal cavity 1101, avoid a large amount of liquid remaining in the centrifugal cavity 1101 and 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.

[0047] In some embodiments, the solid material can be radioactive powder, and the separated liquid can also be radioactive.

[0048] In some embodiments, the centrifugal shell 11 is provided with a plurality of solid material outlets 1102 on the radially outer side in the circumferential direction, which are used for the solid material in the centrifugal cavity 1101 to enter the collecting piece 30. In some embodiments, the centrifugal main body 12 can rotate together with the centrifugal shell 11 to separate the solid-liquid mixture.

[0049] In some embodiments, the solid-liquid separation device 100 can further comprise an inlet-outlet liquid assembly 20 connected with the shell 50 and used for the solid-liquid mixture to enter the centrifugal assembly 10 and the liquid in the liquid temporary storage cavity 24 to be sucked out. By arranging the inlet-outlet liquid assembly 20, the solid-liquid mixture can enter the centrifugal assembly 10, and the separated liquid can be sucked out from the solid-liquid separation device 100 through the liquid temporary storage cavity 24.

[0050] In some embodiments, referring to Figure 8The centrifugal shell 11 forms a feeding cavity 1103 on the radially inner side of the centrifugal cavity 1101, and the solid-liquid mixture from the liquid inlet and outlet assembly 20 can enter the feeding cavity 1103. The radially inner side of the centrifugal shell 11 is circumferentially provided with a plurality of feeding holes 11111 in fluid communication with the feeding cavity 1103, and the solid-liquid mixture entering the feeding cavity 1103 can enter the centrifugal cavity 1101 through the plurality of feeding holes 11111 under the action of centrifugal force.

[0051] In some embodiments, referring to Figure 2 , Figure 4 or Figure 6 , the centrifugal shell 11 can include a first shell segment 111 cooperating with the liquid inlet and outlet assembly 20, a second shell segment 112 connected with the driving assembly 40, and a third shell segment 113 connecting the first shell segment 111 and the second shell segment 112. The first shell segment 111 can include a first part and a second part formed integrally, the first part of the first shell segment 111, the second shell segment 112, and the third shell segment 113 jointly form the centrifugal cavity 1101; the first part and the second part of the first shell segment 111 jointly form the liquid temporary storage cavity 24, and the first part 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 action of centrifugal force. In such embodiments, the liquid separated from the solid material under the action of centrifugal force can directly enter the temporary storage cavity 24 under the action of centrifugal force when the centrifugal assembly 10 rotates, without the need for other additional operations.

[0052] In some embodiments, the first shell segment 111 forms the feeding cavity 1103, and the feeding holes 11111 are formed in the first shell segment 111.

[0053] In some embodiments, the collecting member 30 is arranged on the radially outer side of the second shell segment 112. 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 provides a plurality of solid material outlets 1102 on the second shell segment 112, and the collecting member 30 is arranged on the radially outer side 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 action of 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.

[0054] In some embodiments, the second shell segment 112 forms a plurality of discharging guide surfaces 11211, and each discharging guide surface 11211 extends to a corresponding solid material outlet 1102. The discharging guide surfaces 11211 are beneficial to the solid material entering the solid material outlets 1102 under the action of centrifugal force.

[0055] In some embodiments, the second shell segment 112 forms a plurality of matching pieces 1121 for matching with the third shell segment 113, each matching piece 1121 is formed between two adjacent solid material outlets 1102, and a discharge guide surface 11211 is formed on the surface of the matching piece 1121 facing the centrifugal body 12. Such an arrangement is conducive to the assembly of the third shell segment 113 with the second shell segment 112 and the movement of the solid material along the inner wall of the third shell segment 113 towards the solid material outlet 1102 under the action of centrifugal force.

[0056] In some embodiments, the centrifugal assembly 10 can further include a movable piece 13 arranged in the centrifugal cavity 1101 and movably arranged between the centrifugal body 12 and the second shell segment 112; wherein the movable piece 13 can be in a first position separated from the third shell segment 113 and a second position matched with the third shell segment 113, when the movable piece 13 is in the first position, the solid material outlet 1102 is opened; when the movable piece 13 is in the second position, the movable piece 13 closes the solid material outlet 1102. By arranging the movable piece 13 to be movable between the first position and the second position, the solid material outlet 1102 can be opened or closed, which facilitates the timely feeding of the separated solid material into the collecting piece 30.

[0057] In some embodiments, the movable piece 13 forms a sealed cavity 16 with the centrifugal shell 11. In some embodiments, the centrifugal assembly 10 further includes a pressure adjusting piece 14 for adjusting the pressure in the sealed cavity 16, so that the movable piece 13 can move between the first position and the second position. By adjusting the pressure in the sealed cavity 16, the movable piece 13 can move between the first position and the second position, thereby enabling the solid material outlet 1102 to be opened or closed, which facilitates the timely feeding of the separated solid material into the collecting piece 30.

[0058] Referring to Figure 2 , Figure 4 or Figure 6 In some embodiments, the pressure adjusting piece 14 is arranged on the second shell segment 112.

[0059] 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 collecting 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 separated solid material to be timely sent to the collecting member 30.

[0060] 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 configured to provide fluid to the sealed cavity 16; the liquid outlet channel 142 is formed in the centrifugal shell 11 and is configured to allow the fluid in the sealed cavity 16 to flow out; the valve 143 is configured to close or open the liquid outlet channel 142; and the second liquid inlet channel 144 is formed in the centrifugal shell 11 and is configured 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 allowing the movable member 13 to 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.

[0061] In some embodiments, the centrifugal shell 11 forms a channel, one end of which penetrates the centrifugal shell 11, and the other end of which 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 between 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, into the containing cavity 53 formed by the housing 50 mentioned below).

[0062] 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 enabling the movable part 13 to move 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.

[0063] 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.

[0064] 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 in the axial direction. 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 sealing 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.

[0065] 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.

[0066] Referring to Figure 6 and Figure 8 In some embodiments, the centrifugal body 12 can include a plurality of centrifugal units 121 arranged in the axial direction in a stacked manner, 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 separated into 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.

[0067] 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, so as to facilitate the solid and the liquid to exit the centrifugal cavity 1101 respectively.

[0068] Referring to Figure 6 and Figure 9In some embodiments, the first part of the first shell 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 feeding the solid-liquid mixture into the centrifugal cavity 1101; the solid-liquid mixture enters the first pipe 1111 via the liquid inlet and outlet assembly 20 and enters the centrifugal cavity 1101 via the feeding hole 11111. The first pipe 1111 and the first cover 1112 form a feeding cavity 1103. In such embodiments, when the centrifugal assembly 10 rotates, the solid-liquid mixture can directly enter the centrifugal cavity 1101 via the feeding hole 11111 under the action of centrifugal force after entering the first pipe 1111 via the liquid inlet and outlet assembly 20, which facilitates to improve the feeding efficiency and separation efficiency.

[0069] Referring to Figure 6 and Figure 9 In some embodiments, the first part of the first shell segment 111 can further include: a second cover 1113 extending radially outward at the other end of the first pipe 1111; and the second part of the first shell segment 111 can include: an extension 1115 extending away from the first cover 1112, the extension 1115 and the second cover 1113 together forming a 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 under the action of centrifugal force, without the need for other additional operations.

[0070] Referring to Figure 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 action of centrifugal force; and the liquid inlet and outlet assembly 20 is configured to suck 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 provides the liquid outlet hole 11131 communicating the centrifugal cavity 1101 and the liquid temporary storage cavity 24, so that the liquid separated by centrifugation 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 a large amount of liquid remaining inside the centrifugal cavity 1101, which affects the continuous separation of the material in the centrifugal cavity 1101, and facilitate to take out the separated liquid from the solid-liquid separation device 100.

[0071] In some embodiments, the extension 1115 can include: a cylindrical segment 11151, and a third cover 11152 extending radially inwardly and inclined away from the second cover 1113 from the cylindrical segment 11151.

[0072] Referring to Figure 6 andFigure 9 In some embodiments, the first part of the first shell segment 111 can further comprise an inclined portion 1114 extending radially outward and downward from the second cover 1113 and connected to the third shell segment 113, and the inclined portion 1114 faces the centrifugal units 121.

[0073] 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 be formed in the second shell segment 112.

[0074] Referring to Figure 6 and Figure 8 In some embodiments, the centrifugal 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 to the end of the first mounting member 122 away from the second cover 1113 and connected to the second shell segment 112, and the plurality of centrifugal units 121 are arranged in layers on the second mounting member 123; the solid-liquid mixture flowing into the centrifugal cavity 1101 through the feed hole 11111 flows through the second mounting member 123 and is distributed to the plurality of centrifugal units 121. By arranging the centrifugal 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 improving the separation efficiency of the centrifugal units 121.

[0075] In some embodiments, all the centrifugal units 121 are clamped by the inclined portion 1114 and the second mounting member 123, so as to position the centrifugal units 121.

[0076] Referring to Figure 2 、 Figure 4 or Figure 6 In some embodiments, the driving shaft 41 can be connected to the second mounting member 123. In some embodiments, the first pipe member 1111 is coaxial with the driving shaft 41.

[0077] Referring to Figure 11In 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. The first mounting member 122 and the centrifugal unit 121 are circumferentially opposite and stationary by matching the positioning portion 1221 and the positioning matching portion 1211, 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 rotate together.

[0078] In some embodiments, the positioning portion 1221 can be a protrusion, and the positioning matching portion 1211 can be a groove.

[0079] Referring to Figure 8 In some embodiments, the first mounting member 122 and the first pipe member 1111 form a ring cavity 15, and the ring cavity 15 is in communication with the feeding hole 11111. The solid-liquid mixture can enter the ring cavity 15 through the feeding hole 11111.

[0080] Referring to Figure 12 In some embodiments, the second mounting member 123 is provided with a plurality of grooves 1231 distributed in the circumferential direction, and the grooves 1231 are in communication with the ring cavity 15. The solid-liquid mixture can enter the grooves 1231 through the ring cavity 15, and then enter the centrifugal cavity 1101.

[0081] Referring to Figure 6 and Figure 10 In some embodiments, the side of the first pipe member 1111 facing the first cover member 1112 forms a recessed portion 11112, the feeding hole 11111 is formed in the recessed portion 11112, and the recessed portion 11112 and the first mounting member 122 form the ring cavity 15. The outer diameter of the recessed portion 11112 is smaller than the outer diameter of other parts of the first pipe member 1111. The first cover member 1112 is in contact 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 sealing connection with the second mounting member 123.

[0082] 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 cavity 1101 and is connected with the driving shaft 41. In some embodiments, the grooves 1231 extend from the circular ring section 1233 to the flow guide section 1232.

[0083] The connecting section 1234 forms a groove with an upper opening, and the first cover 1112 is embedded in the groove. The first cover 1112 and the connecting section 1234 are sealed by a sealing ring to prevent liquid from entering the groove below.

[0084] Referring to Figure 14 to Figure 17 In some embodiments, each centrifugal unit 121 is provided with a plurality of through holes 1212, each of which is located between two troughs 1231 to allow the solid-liquid mixture in the troughs 1231 to flow to the centrifugal units 121 under the action of centrifugal force, thereby improving the separation efficiency of the centrifugal units 121.

[0085] 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 to facilitate the solid-liquid mixture in the troughs 1231 to flow to the centrifugal units 121 through the through holes 1212 of the centrifugal units 121 under the action of centrifugal force.

[0086] Referring to Figure 14 In 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. Referring to Figure 14 In some embodiments, the solid-liquid mixture can flow through the centrifugal body 1213, and each through hole 1212 is located on the centrifugal body 1213 between two adjacent flow guides 1214, so that the separated liquid can rotate synchronously with the centrifugal body 1213 in the circumferential direction. Such a configuration allows the solid-liquid mixture flowing through the centrifugal body 1213 to rotate synchronously with the centrifugal body 1213 in the circumferential direction as much as possible; thereby facilitating the liquid to flow upward along the centrifugal body 1213, while the solid material flows downward along the centrifugal body 1213, thereby improving the separation efficiency.

[0087] In some embodiments, the number of flow guides 1214 can be 4-8.

[0088] Referring to 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, and the grooves 12133 of each centrifugal unit 121 are aligned respectively, so that the corresponding grooves 12133 of all the 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, thereby improving the efficiency of the liquid moving to the liquid inlet / outlet assembly 20, and thus improving the separation efficiency.

[0089] Referring to Figure 11 and Figure 14 In some embodiments, the flow guide 1214 can be arc-shaped, extending from a radially inner side of the centrifugal body 1213 to a radially outer side of the centrifugal body 1213, so as to achieve a better flow guiding effect.

[0090] Referring to Figure 16 In some embodiments, when all the centrifugal units 121 are sleeved on the first mounting member 122, the through hole 1212 of each centrifugal unit 121 is respectively aligned in the axial direction, and the flow guide 1214 of each centrifugal unit 121 is respectively aligned. In such embodiments, it is beneficial to enable the solid-liquid mixture in the trough 1231 to flow to each centrifugal unit 121 via the through hole 1212 under the action of centrifugal force.

[0091] Referring to Figure 11 and Figure 14 In some embodiments, the centrifugal body 1213 can include a tapered flow guiding section 12131 and a connecting section 12132. The tapered flow guiding section 12131 is arranged to enable liquid to flow along the surface of the tapered flow guiding section 12131 towards the liquid inlet / outlet assembly 20 under the action of centrifugal force, and enable solid material to move along the surface of the tapered flow guiding section 12131 towards a direction opposite to the direction of liquid flow, so as to separate the liquid and the solid material in the solid-liquid mixture; the connecting section 12132 is sleeved on the first mounting member 122 and arranged to be relatively stationary in the circumferential direction with the first mounting member 122. Such arrangement enables the first mounting member 122 to drive the centrifugal body 1213 to rotate when the first mounting member 122 rotates with the second mounting member 123, and at the same time, the separation of the liquid and the solid material is achieved through the different movement directions of the liquid and the solid material on the surface of the tapered flow guiding section 12131.

[0092] Referring to Figure 11 and Figure 14 In some embodiments, the through hole 1212 and the flow guide 1214 can be arranged on the tapered flow guiding section 12131. The positioning and fitting part 1211 is arranged on the connecting section 12132. Such arrangement enables the solid-liquid mixture to rotate in the circumferential direction synchronously with the centrifugal body 1213 under the flow guiding effect of the flow guide 1214 after the solid-liquid mixture flows to the tapered flow guiding section 12131 via the through hole 1212. In some embodiments, the tapered flow guiding section 12131 extends upwardly and upwardly from the lower end thereof towards the connecting section 12132.

[0093] Referring to Figure 11 and Figure 14 In some embodiments, the groove 12133 can be formed on the side of the connecting section 12132 facing the first mounting member 122.

[0094] Referring to Figure 16In some embodiments, two adjacent centrifugal units 121 are pressed together, and a gap is formed between the conical flow guide sections 12131 of the two adjacent centrifugal units 121 by the flow guide 1214 for fluid flow. By forming a gap between the two adjacent centrifugal units 121 by the flow guide 1214, it is easier to achieve a gap of only 1-2 mm between the two adjacent centrifugal units 121.

[0095] 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.

[0096] In some embodiments, the movable member 13 can form a movable guide surface 131, so that the solid material entering the movable member 13 can move along the movable guide surface 131 towards the solid material outlet 1102 under the centrifugal force. When the movable member 13 opens the solid material outlet 1102 of the centrifugal housing 11, the solid material can enter the solid material outlet 1102 of the centrifugal housing 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, and improves the efficiency of the solid material entering the collection member 30. In some embodiments, the movable guide surface 131 is formed on the surface of the movable member 13 facing away from the second shell section 112. The movable guide surface 131 can be a conical surface extending obliquely from bottom to top towards the radial outside.

[0097] 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 section 112, and a sealing member is arranged between the radial end surface of the movable member 13 facing the second shell section 112 and the second shell section 112 to achieve sealing. In some embodiments, the sealing member can be a rubber sealing ring.

[0098] Referring to Figure 2 , Figure 4 or Figure 6 , in some embodiments, the surface of the movable member 13 facing the second shell section 112 is adapted to the surface of the second shell section 112 facing the movable member 13. This arrangement makes the radial thickness of the sealing cavity 16 uniform, and thus facilitates 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.

[0099] In some embodiments, the surface of the moving part 13 axially facing away from the second shell segment 112 includes a matching surface matching the third shell segment 113, a moving guide surface 131, an annular surface, and a tapered surface parallel to the second mounting part 123, which together form an annular accommodating groove at the bottom of the centrifugal cavity 1101.

[0100] Referring to Figure 16 In some embodiments, the second shell segment 112 can form a plurality of discharge guide surfaces 11211, each of which extends to a corresponding solid material outlet 1102. The discharge guide surfaces 11211 guide the solid material to enter the solid material outlet 1102 under the action of centrifugal force. In some embodiments, the discharge guide surfaces 11211 of the second shell segment 112 have the same rotational direction as the guide part 1214 of the centrifugal unit 121.

[0101] Referring to Figure 16 and Figure 21 In some embodiments, the second shell segment 112 can form a plurality of matching parts 1121 for matching the third shell segment 113. Each matching part 1121 is formed between two adjacent solid material outlets 1102, and the discharge guide surface 11211 is formed on the surface of the matching part 1121 facing the centrifugal body 12. Such an arrangement facilitates the assembly of the third shell segment 113 with the second shell segment 112, and facilitates the movement of the solid material along the inner wall of the third shell segment 113 towards the solid material outlet 1102 under the action of centrifugal force. Figure 7 The third shell segment 113 is pressed onto the matching part 1121, and the third shell segment 113 is tightly sealed with the second shell segment 112 by the pressing part 114. The side of the third shell segment 113 facing the matching part 1121 is provided with a sealing part.

[0102] Referring to Figure 6 and Figure 9 In some embodiments, the liquid inlet and outlet assembly 20 can include a feeding part 21, a liquid outlet matching part 22, and a liquid suction part 23. The feeding part 21 is arranged radially inward of the first pipe part 1111 to supply solid-liquid mixed material to the centrifugal cavity 1101; the liquid outlet matching part 22 is arranged radially outward of the feeding part 21, and the liquid outlet matching part 22 matches the feeding part 21 to form a liquid outlet channel 25 between the liquid outlet matching part 22 and the feeding part 21; the liquid suction part 23 is arranged in the liquid temporary storage cavity 24 and connected to the liquid outlet matching part 22, and the liquid suction part 23 is arranged to be able to suck the separated liquid out of the centrifugal assembly 10 to the liquid outlet channel 25. Such an arrangement enables the liquid inlet and outlet assembly 20 to supply solid-liquid mixed material to the centrifugal cavity 1101 and to suck the separated liquid out.

[0103] Referring to Figure 6 and Figure 9 In some embodiments, the feeding part 21 can be a pipe part.

[0104] Referring to Figure 6 and Figure 9 In some embodiments, the extension 1115 and the second cover 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 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 liquid inlet and outlet assembly 20. In some embodiments, the liquid temporary storage chamber 24 is located on the axial side of the centrifugal chamber 1101.

[0105] 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 the spiral channels 231 can suck the liquid separated by the centrifugal assembly 10 into the liquid outlet channel 25 when the centrifugal shell 11 rotates relative to the liquid inlet and outlet assembly 20. The above arrangement facilitates the separated liquid in the liquid temporary storage chamber 24 to enter the liquid outlet channel 25.

[0106] It is easy to understand that when the centrifugal shell 11 rotates relative to the liquid inlet and outlet assembly 20, the liquid in the liquid temporary storage chamber 24 will also rotate, and due to the relative rotation between the liquid and the spiral channels 231, the liquid will be sucked into the spiral channels 231.

[0107] Referring to Figure 14 and Figure 18 In some embodiments, the spiral channels 231 of the liquid suction member 23 are 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.

[0108] Referring to Figure 18 and Figure 19 In some embodiments, the liquid suction member 23 can include an annular body 232 and an annular cover plate 233. The annular body 232 is connected to the liquid outlet matching member 22, and the side of the annular body 232 facing the annular cover plate 233 forms a plurality of spiral grooves 2321 to jointly form a plurality of spiral channels 231 with the annular cover plate 233. The above arrangement of the liquid suction member 23 facilitates processing.

[0109] In some embodiments, 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 chamber 24 to flow towards the inlet direction of the spiral channels 231; and the annular cover plate 233 is connected to the feed member 21.

[0110] In some embodiments, the annular body 232 and the liquid outlet matching member 22 can be an integrally formed member. Referring to Figure 19In some embodiments, the width of the spiral groove 2321 radially outside the annular body 232 is greater than the width of the spiral groove 2321 radially inside the annular body 232, so as to facilitate the liquid in the liquid temporary storage cavity 24 to enter the spiral channel 231.

[0111] Referring to Figure 20 In some embodiments, the feeding member 21 can include a first pipe segment 211, a second pipe segment 212, and a limiting part 213. The first pipe segment 211 is arranged radially inside the centrifugal shell 11, and the solid-liquid mixture flows out of the first pipe segment 211 and enters the centrifugal cavity 1101 through the feeding hole 11111 on the centrifugal shell 11. The second pipe segment 212 and the liquid outlet cooperating member 22 form the liquid outlet channel 25. The limiting part 213 is arranged between the first pipe segment 211 and the second pipe segment 212, and is used to axially limit the liquid suction member 23 so as to prevent the liquid suction member 23 from contacting the bottom wall of the liquid temporary storage cavity 24.

[0112] Referring to Figure 20 In some embodiments, the circumferential surface of the second pipe 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 cooperating member 22 matches the curved surface 2122 of the second pipe segment 212, and the radially inner surface of the liquid outlet cooperating member 22 and the cut surface 2121 form gaps, which form the liquid outlet channel 25.

[0113] Referring to Figure 2 In some embodiments, the solid-liquid separation device 100 can further include a housing 50. The housing 50 is arranged to form a containing cavity 53; the centrifugal assembly 10 is arranged in the containing cavity 53 and can rotate relative to the housing 50; and the liquid feeding and discharging assembly 20 is also arranged in the housing 50. By arranging the housing 50, the centrifugal assembly 10 and the liquid feeding and discharging assembly 20 can be assembled in the housing 50.

[0114] Referring to Figure 2 and Figure 4 In some embodiments, the housing 50 can include a shell body 51 and a detachable part 52 detachably connected with the shell body 51, and the shell body 51 and the detachable part 52 jointly form the containing cavity 53. When the detachable part 52 is detached from the shell body 51, the collecting member 30 can be taken out of the shell body 51. In this way, the collecting member 30 and the solid material contained therein can be taken out by using a mechanical hand, which is beneficial to reducing the radiation of the liquid and the solid material with radioactivity to the operator.

[0115] Referring to Figure 2 , Figure 4 and Figure 23In some embodiments, the shell body 51 can include a bottom shell 511 and a shell cover 512 arranged in a spaced apart manner. The collecting member 30 is detachably arranged on the bottom shell 511, the driving assembly 40 is rotatably connected with the bottom shell 511, and the inlet and outlet liquid assembly 20 is arranged on the shell cover 512. The detachable member 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 member 52 jointly form a containing cavity 53. 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 shell body 51. The embodiments of the present application facilitate reasonable arrangement of the connection relationship between each component and the shell body 51, so as to facilitate that each component does not interfere with each other when realizing the respective functions.

[0116] Referring to Figure 4 In some embodiments, the bottom shell 511 can include a bottom shell body 5111 and a mounting member 5112 arranged on the radially inner side of the bottom shell body 5111. The mounting member 5112 and the bottom shell body 5111 jointly form a mounting groove 54, and the collecting member 30 is arranged in the mounting groove 54. 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 detachment of the collecting member 30 are facilitated.

[0117] 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 the 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 the liquid entering the bottom shell body 5111 from the collecting member 30 to flow out.

[0118] Referring to Figure 2 In some embodiments, the solid-liquid separation device 100 can further include a negative pressure suction pipeline 60 arranged at the opening of 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 arranging the negative pressure suction pipeline 60 to separate the liquid in the containing cavity 53, the liquid can be recovered as much as possible.

[0119] Referring to Figure 4 In some embodiments, the bottom wall of the bottom shell body 5111 forms a bottom shell ring groove 51111 for the liquid entering the containing cavity 53 to flow together. In this way, the liquid in the containing cavity 53 can be separated as much as possible by the negative pressure suction pipeline 60, and the residual liquid is reduced. In some embodiments, the opening of the bottom shell body 5111 is arranged at the bottom shell ring groove 51111.

[0120] 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. In some embodiments, the shell cover 512 is further provided with a feeding groove 5122, which is in fluid communication with the feeding member 21, and the solid-liquid mixture can enter the feeding member 21 through the feeding groove 5122.

[0121] Referring to Figure 6 , Figure 9 and Figure 20 , in some embodiments, the part of the feeding member 21 facing the feeding groove 5122 forms 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 holes 11111 uniformly under the action of centrifugal force. The feeding ring groove 2101 is formed in the second pipe segment 212.

[0122] 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.

[0123] 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.

[0124] Referring to Figure 6 and Figure 9 , in some embodiments, the shell cover 512 is further provided with a liquid outlet groove 5123 and an annular groove 5124, and the liquid outlet groove 5123 is in fluid communication with the liquid outlet passage 25 through the annular groove 5124, so that 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.

[0125] 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 flowing the liquid in the liquid outlet groove 5123 out.

[0126] 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.

[0127] 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 groove 5122, the liquid outlet groove 5123, and the annular groove 5124 are formed in the protruding portion 5126.

[0128] 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; the second connecting member 523 is detachably connected to the cover body 5125.

[0129] Referring to Figure 4 and Figure 23 In some embodiments, the solid-liquid separation device 100 can further include a dynamic sealing member 90, and the bottom shell body 5111 is sealingly connected to the drive shaft 41 through the dynamic sealing member 90. The dynamic sealing member 90 can include a shaft sleeve 92 and a plurality of bearings 91. The bearings 91 are arranged in the shaft sleeve 92. The shaft sleeve 92 is sealingly connected to the bottom shell body 5111, and the bearings 91 are sealingly connected to the drive shaft 41.

[0130] In some embodiments, referring to Figure 23 , the bottom wall of the bottom shell body 5111 is formed with 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 member 921 and a shaft sleeve body 922, the bearings 91 are arranged in the shaft sleeve body 922, and the shaft sleeve body 922 is arranged in the through hole 51112; the shaft sleeve connecting member 921 is formed on the end of the shaft sleeve body 922 close to the bottom shell body 5111, the diameter of the shaft sleeve connecting member 921 is greater than the diameter of the through hole 51112, and the shaft sleeve connecting member 921 is sealingly connected to the bottom shell body 5111.

[0131] 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 accommodating cavity 53.

[0132] For the embodiments of the present application, it also needs to be explained that the embodiments and the features in the embodiments of the present application can be combined with each other to obtain new embodiments without conflict.

[0133] The above is only a specific implementation 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 for separating a solid-liquid mixture into a liquid and a solid material, characterized by, The device 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; 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 housing so as to separate the solid-liquid mixture; wherein the centrifugal assembly comprises a centrifugal housing and a centrifugal main body, the centrifugal housing is configured to form a centrifugal cavity and a liquid temporary storage cavity in fluid communication, the centrifugal main body is arranged in the centrifugal cavity and is configured to separate the solid-liquid mixture and allow the separated liquid to enter the liquid temporary storage cavity; the device further comprises an inlet-outlet liquid assembly connected with the housing for allowing the solid-liquid mixture to enter the centrifugal assembly and allowing the liquid in the liquid temporary storage cavity to be pumped out; the centrifugal housing comprises a first housing segment matched with the inlet-outlet liquid assembly, a second housing segment connected with the driving assembly, and a third housing segment connecting the first housing segment and the second housing segment; the first housing segment comprises a first part and a second part formed integrally, the first part of the first housing segment, the second housing segment, and the third housing segment jointly form the centrifugal cavity; the first part and the second part of the first housing segment jointly form the liquid temporary storage cavity, the first part is provided with a liquid outlet hole for allowing the liquid in the centrifugal cavity to enter the liquid temporary storage cavity under the action of centrifugal force.

2. The apparatus of claim 1, wherein, the collecting member is arranged radially outward of the second housing segment; the second housing segment is provided with a plurality of solid material outlets in the circumferential direction for allowing the solid materials in the centrifugal cavity to enter the collecting member.

3. The apparatus of claim 2, wherein, the second housing segment forms a plurality of material outlet guide surfaces, each of which extends to a corresponding solid material outlet.

4. The apparatus of claim 3, wherein, the second housing segment forms a plurality of matching members for matching with the third housing segment, each of which is formed between two adjacent solid material outlets, and the material outlet guide surface is formed on the surface of the matching member facing the centrifugal main body.

5. The apparatus of claim 2, wherein, the centrifugal assembly further comprises: a movable member arranged in the centrifugal cavity and movably arranged between the centrifugal main body and the second housing segment; wherein the movable member can be in a first position separated from the third housing segment and a second position matched with the third housing segment, when the movable member is in the first position, the solid material outlets are opened; when the movable member is in the second position, the movable member closes the solid material outlets.

6. The apparatus of claim 5, wherein, the movable member and the centrifugal housing form a sealed cavity; the centrifugal assembly further comprises a pressure adjusting member arranged in the second housing segment, the pressure adjusting member is used to adjust the pressure in the sealed cavity, so that the movable member can move between the first position and the second position.

7. The apparatus of claim 5, wherein, the movable member forms a movable guide surface, so that the solid materials entering the movable member can move along the movable guide surface towards the solid material outlets under the action of centrifugal force.

8. The apparatus of claim 5, wherein, the surface of the movable member facing the second housing segment is matched with the surface of the second housing segment facing the movable member.

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