Solid-liquid separation device facilitating liquid withdrawal

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 facilitating liquid extraction, which comprises a centrifugal assembly, a liquid inlet and outlet assembly, a collection member and a driving assembly. The centrifugal assembly is used to separate a solid-liquid mixture into liquid and solid materials; the liquid inlet and outlet assembly is used to allow the solid-liquid mixture to enter the centrifugal assembly and allow the separated liquid to flow out of the centrifugal assembly; the collection member is used to collect the separated solid materials; and the driving assembly is used to drive the centrifugal assembly to rotate relative to the liquid inlet and outlet assembly, thereby separating the solid-liquid mixture; wherein the liquid inlet and outlet assembly is configured to suck out the liquid separated by the centrifugal assembly. The solid-liquid separation device provided by the embodiments of the present application can avoid the liquid remaining in the solid-liquid separation device by sucking out the liquid separated by the centrifugal assembly through the liquid inlet and outlet assembly, and facilitate the extraction 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 facilitating liquid taking out. BACKGROUND

[0002] The statements herein are merely provided to give a background of the present application and are not necessarily prior art.

[0003] When separating a liquid mixed with solid powder, the liquid is usually separated by centrifugation due to the powder suspended in the liquid. After the separation by centrifugation, the separated liquid remains in the centrifugal device, and the liquid can be poured out only after the centrifugal device is disassembled, which is not easy to operate. Especially when the liquid is radioactive, it is inconvenient to open the centrifugal device manually or by using a mechanical hand to take out the radioactive liquid in the centrifugal device due to the influence of radioactivity. SUMMARY

[0004] A brief summary of the present application is presented in the following to provide a basic understanding of some aspects of the present application. It should be understood that this summary is not an exhaustive overview of the present application. It is not intended to identify key or critical elements of the present application or to delineate the scope of the present application. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.

[0005] To solve the above problems, embodiments of the present application provide a solid-liquid separation device facilitating liquid taking out, which comprises a centrifugal assembly, a liquid inlet and outlet assembly, a collecting member and a driving assembly. The centrifugal assembly is used to separate a solid-liquid mixture into a liquid and a solid material; the liquid inlet and outlet assembly is used to allow the solid-liquid mixture to enter the centrifugal assembly and to allow the separated liquid to flow out of the centrifugal assembly; the collecting member is used to collect the separated solid material; and the driving assembly is used to drive the centrifugal assembly to rotate relative to the liquid inlet and outlet assembly, thereby separating the solid-liquid mixture; wherein the liquid inlet and outlet assembly is configured to suck out the liquid separated by the centrifugal assembly.

[0006] The solid-liquid separation device provided by the embodiments of the present application can avoid the liquid remaining in the solid-liquid separation device by sucking out the liquid separated by the centrifugal assembly through the liquid inlet and outlet assembly, and facilitate 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 become apparent from the following description of embodiments of the present application with reference to the accompanying drawings, which together with the description, illustrate the principles of the present application.

[0008] Figure 1 FIG. 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 the solid-liquid separation device provided by the embodiment of the present application after omitting the detachable part.

[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 the solid-liquid separation device provided by the embodiment of the present application after omitting the shell.

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

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

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

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

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

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

[0019] Figure 12 is a structural schematic diagram of the second mounting part of the solid-liquid separation device provided by the 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 the 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 part and the driving assembly of the solid-liquid separation device provided by the embodiment of the present application after assembling.​​​​​​​

[0023] Figure 16 is Figure 15 a sectional view of the structure of the liquid inlet and outlet assembly, centrifugal main body, second shell segment, collecting piece and driving assembly of the solid-liquid separation device at the solid material outlet.

[0024] Figure 17 is Figure 15 a partial enlarged view of the structure of the solid-liquid separation device.

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

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

[0027] Figure 20 is a structural schematic diagram of the feed piece of the solid-liquid separation device.

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

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

[0030] Figure 23 is a sectional schematic diagram of the solid-liquid separation device 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 exemplary embodiments. DETAILED DESCRIPTION

[0043] The exemplary embodiments of this application will be described hereinafter with reference to the accompanying drawings. In the description, all features that are possible to be implemented in an actual embodiment are not described in the specification for the sake of clarity and conciseness. It should be appreciated, however, that many implementation-specific decisions can have to be made in order to develop any such actual embodiment, to implement developer-specific goals, such as compliance with system- and business-related constraints, which will vary from one implementation to another, and that such development work will have to be made in accordance with 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 schemes according to the present application, only the structures of the equipment and / or the processing steps that are closely related to the schemes according to the present application are shown in the drawings, and other details that are not closely related to the present application are omitted.

[0045] Reference will now be made to Figures 1 to 6The embodiment of the present application provides a solid-liquid separation device 100, which comprises a centrifugal assembly 10, a liquid inlet and outlet assembly 20, a collecting piece 30 and a driving assembly 40. The centrifugal assembly 10 is used for separating solid-liquid mixture into liquid and solid material; the liquid inlet and outlet assembly 20 is 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 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 as to separate the solid-liquid mixture; wherein the liquid inlet and outlet assembly 20 is arranged to suck the separated liquid out of the centrifugal assembly 10.

[0046] The solid-liquid separation device 100 provided by the embodiment of the present application can suck the separated liquid out of the centrifugal assembly 10 through the liquid inlet and outlet assembly 20, so that the liquid can be prevented from remaining in the solid-liquid separation device 100, and the separated liquid can be conveniently taken out of 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] Referring to Figure 6 and Figure 9 In some embodiments, the liquid inlet and outlet assembly 20 can comprise a feeding piece 21, a liquid outlet matching piece 22 and a liquid suction piece 23. The feeding piece 21 is arranged on the radially inner side of the centrifugal assembly 10, so as to supply the solid-liquid mixture to the centrifugal assembly 10; the liquid outlet matching piece 22 is arranged on the radially outer side of the feeding piece 21, and the liquid outlet matching piece 22 is matched with the feeding piece 21, so as to form a liquid outlet channel 25 between the liquid outlet matching piece 22 and the feeding piece 21; and the liquid suction piece 23 is arranged to suck the separated liquid out of the centrifugal assembly 10 to the liquid outlet channel 25. In this way, the liquid inlet and outlet assembly 20 can supply the solid-liquid mixture to the centrifugal cavity 1101 and can also suck the separated liquid out.

[0049] Referring to Figure 6 and Figure 9 In some embodiments, the feeding piece 21 can be a pipe.

[0050] Referring to Figure 6 and Figure 9 In some embodiments, the liquid suction piece 23 is connected with the liquid outlet matching piece 22.

[0051] Referring to Figure 20In some embodiments, the feeding member 21 can include a first pipe segment 211, a second pipe segment 212, and a limiting portion 213. The first pipe segment 211 is arranged at a radially inner side of the centrifugal assembly 10, and the solid-liquid mixture flows out of the first pipe segment 211 into the centrifugal assembly 10. The second pipe segment 212 forms the liquid outlet channel 25 with the liquid outlet cooperating member 22. The limiting portion 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.

[0052] 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 gaps are formed between the radially inner surface of the liquid outlet cooperating member 22 and the cut surfaces 2121, which form the liquid outlet channel 25.

[0053] Referring to Figure 6 , Figure 9 and Figure 18 In some embodiments, the liquid suction member 23 can form a plurality of spiral channels 231 distributed along the circumference, and the spiral channels 231 are in fluid communication with the liquid outlet channel 25. When the centrifugal assembly 10 rotates relative to the liquid inlet and outlet assembly 20, the spiral channels 231 can suck the liquid separated by the centrifugal assembly 10 into the liquid outlet channel 25. The embodiments of the present application can avoid that a large amount of liquid remains inside the centrifugal cavity 1101, which affects the continuous separation of the material in the centrifugal cavity 1101, and facilitates the taking out of the separated liquid from the solid-liquid separation device 100.

[0054] It is easy to understand that when the centrifugal assembly 10 rotates relative to the liquid suction member 23, the liquid will rotate with the centrifugal assembly 10, and since the liquid and the spiral channels 231 form relative rotation, the liquid can be sucked into the spiral channels 231.

[0055] 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 with the liquid outlet cooperating member 22, and the ring-shaped cover plate 233 is connected with the feeding member 21. In some embodiments, the side of the ring-shaped body 232 facing the ring-shaped cover plate 233 forms a plurality of spiral grooves 2321, so as to form a plurality of spiral channels 231 together with the ring-shaped cover plate 233. The above arrangement of the liquid suction member 23 facilitates processing.

[0056] In some embodiments, the ring-shaped body 232 and the liquid outlet cooperating member 22 can be an integrally formed member.

[0057] Referring to Figure 19In some embodiments, the width of the spiral groove 2321 on the radial outside of the annular body is greater than the width of the spiral groove 2321 on the radial inside of the annular body, so as to facilitate the liquid to enter the spiral channel 231.

[0058] Referring to Figure 2 In some embodiments, the solid-liquid separation device 100 can further comprise a housing 50, which 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 inlet and outlet assembly 20 is also arranged in the housing 50. By arranging the housing 50, the centrifugal assembly 10 and the liquid inlet and outlet assembly 20 can be assembled in the housing 50.

[0059] Referring to Figure 2 and Figure 4 In some embodiments, the housing 50 can comprise a housing body 51 and a detachable part 52 detachably connected with the housing body 51, and the housing body 51 and the detachable part 52 jointly form the containing cavity 53, so that when the detachable part 52 is detached from the housing body 51, the collecting part 30 can be taken out of the housing body 51. In this way, the collecting part 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.

[0060] Referring to Figure 2 , Figure 4 and Figure 23 In some embodiments, the housing body 51 can comprise a bottom shell 511 and a shell cover 512 arranged at intervals. The collecting part 30 is detachably arranged in the bottom shell 511, the driving assembly 40 is rotatably connected with the bottom shell 511, and the liquid inlet and outlet assembly 20 is arranged in the shell cover 512. The detachable part 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 part 52 jointly form the containing cavity 53. When the detachable part 52 is detached from the shell cover 512 and the bottom shell 511, the collecting part 30 can be taken out of the housing body 51. The embodiments of the present application are beneficial to reasonably arranging the connection relationship between each component and the housing body 51, so as to facilitate the components to realize their respective functions without interfering with each other.

[0061] Referring to Figure 4 In some embodiments, the bottom shell 511 can comprise a bottom shell body 5111 and a mounting part 5112 arranged on the radial inside of the bottom shell body 5111, and the mounting part 5112 and the bottom shell body 5111 jointly form a mounting groove 54, and the collecting part 30 is arranged in the mounting groove 54. When the detachable part 52 is detached from the shell cover 512 and the bottom shell 511, the collecting part 30 can be taken out of the mounting groove 54. In this way, the mounting and detachment of the collecting part 30 are facilitated.

[0062] In some embodiments, the bottom wall of the collecting piece 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 piece 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 piece 30 to flow out.

[0063] 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.

[0064] 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. Such arrangement facilitates the liquid in the containing cavity 53 to be separated as much as possible by the negative pressure suction pipeline 60, thereby reducing the residue.

[0065] In some embodiments, the opening of the bottom shell body 5111 is arranged at the bottom shell ring groove 51111.

[0066] Referring to Figure 9 In some embodiments, the shell cover 512 is provided with a slotted groove 5121, and the feeding piece 21 and the liquid outlet matching piece 22 extend downward from the slotted groove 5121. In some embodiments, the shell cover 512 is further provided with a feeding groove 5122 in fluid communication with the feeding piece 21, and the solid-liquid mixed material can enter the feeding piece 21 again through the feeding groove 5122.

[0067] Referring to Figure 6 , Figure 9 and Figure 20 In some embodiments, the part of the feeding piece 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 mixed material in the feeding groove 5122 can first enter the feeding ring groove 2101 and then enter the feeding piece 21 through the plurality of feeding through holes 2102. Such arrangement facilitates the solid-liquid mixed material to enter the feeding piece 21 uniformly along the circumference of the feeding piece 21, so as to enter the feeding cavity 1103 uniformly and then enter the feeding holes 11111 under the action of centrifugal force. The feeding ring groove 2101 is specifically formed in the second pipe segment 212.

[0068] In some embodiments, the second pipe section 212 further forms two sealing grooves 2123 arranged on both sides of the feed ring groove 2101 for arranging sealing members to prevent leakage of the solid-liquid mixture into the feed ring groove 2101.

[0069] Referring to Figure 1 and Figure 2 In some embodiments, the solid-liquid separation device 100 can further comprise a feed pipe 70 arranged on the shell cover 512 and in fluid communication with the feed ring groove 2101 for feeding the solid-liquid mixture into the feed groove 5122.

[0070] Referring to Figure 6 and Figure 9 In some embodiments, the shell cover 512 further comprises a liquid outlet groove 5123 and a ring groove 5124, the liquid outlet groove 5123 being in fluid communication with the liquid outlet passage 25 through the ring groove 5124, and the liquid sucked into the liquid outlet passage 25 can flow into the liquid outlet groove 5123 through the ring groove 5124. Such arrangement is conducive to accelerating the speed of liquid flowing into the liquid outlet groove 5123.

[0071] Referring to Figure 3 and Figure 4 In some embodiments, the solid-liquid separation device 100 can further comprise a liquid outlet pipe 80 arranged on the shell cover 512 and in fluid communication with the liquid outlet groove 5123 for discharging the liquid in the liquid outlet groove 5123.

[0072] Referring to Figure 18 and Figure 19 In some embodiments, the liquid outlet fitting 22 can be a pipe, and the liquid outlet fitting 22 forms a plurality of notches 221 at the end away from the liquid suction fitting 23 to allow the liquid in the liquid outlet passage 25 to enter the ring 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.

[0073] Referring to Figure 23 The shell cover 512 can comprise 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 ring groove 5124 are formed in the protruding portion 5126.

[0074] The detachable part 52 comprises a ring-shaped cover part 521 and a first connecting part 522 arranged radially outside the ring-shaped cover part 521, and the bottom shell 511 further comprises a bottom shell connecting part 5113 connected to the bottom shell body 5111, and the detachable part 52 is detachably connected to the bottom shell 511 through the first connecting part 522 and the bottom shell connecting part 5113. The detachable part 52 further comprises a second connecting part 523 arranged radially inside the ring-shaped cover part 521, and the second connecting part 523 is detachably connected to the cover body 5125.

[0075] Referring to Figures 2 to 6 In some embodiments, the centrifugal assembly 10 can comprise a centrifugal shell 11 and a centrifugal body 12. The centrifugal shell 11 is arranged to form a centrifugal cavity 1101 and a liquid temporary storage cavity 24 in fluid communication with the centrifugal cavity 1101; the centrifugal body 12 is arranged in the centrifugal cavity 1101 and is configured to rotate together with the centrifugal shell 11 to separate the solid-liquid mixture, and the liquid separated by the centrifugal body 12 can enter the liquid temporary storage cavity 24 under the action of centrifugal force. In some embodiments, a plurality of solid material outlets 1102 can be arranged on the radially outer side of the centrifugal shell 11 in the circumferential direction, for the solid material in the centrifugal cavity 1101 to enter the collection part 30.

[0076] In some embodiments, the liquid suction part 23 is arranged in the liquid temporary storage cavity 24 and is configured to suck the liquid in the liquid temporary storage cavity 24 to the liquid outlet channel 25.

[0077] The solid-liquid separation device 100 provided by the embodiments of the present application can separate the liquid and the solid material by the centrifugal body 12, and the separated liquid is sucked to the liquid outlet channel 25 through the liquid temporary storage cavity 24, and the separated solid material enters the collection part 30 through the solid material outlet 1102, which is conducive to realizing continuous feeding and continuous discharging of the solid-liquid mixture.

[0078] 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 cavity 24 to flow towards the inlet of the spiral channel 231. In some embodiments, the width of the spiral groove 2321 located radially outside the annular body 232 is greater than the width of the spiral groove 2321 located 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.

[0079] In some embodiments, the first pipe segment 211 of the feeding part 21 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.

[0080] In some embodiments, the limiting part 213 of the feeding part 21 is configured to axially limit the liquid suction part 23 so as to prevent the liquid suction part 23 from contacting the bottom wall of the liquid temporary storage cavity 24.

[0081] In some embodiments, the centrifugal assembly 10 can further comprise a movable member 13 and a pressure regulating member 14. The movable member 13 is movably arranged in the centrifugal cavity 1101, and the pressure regulating member 14 is arranged in the centrifugal housing 11. See Figure 2 , Figure 4 and Figure 6 In some embodiments, the driving assembly 40 is further arranged to cooperate with the pressure regulating member 14 to change the pressure on one side of the movable member 13, so that the movable member 13 can move between a first position in which the plurality of solid material outlets 1102 are opened and a 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 regulating member 14 to change the pressure on one side of the movable member 13, so that the movable member 13 can move between a first position in which the plurality of solid material outlets 1102 are opened and a 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 separated solid material into the collection member 30.

[0082] In some embodiments, the movable member 13 and the centrifugal housing 11 can form a sealed cavity 16, and the pressure regulating member 14 can be used to regulate the pressure in the sealed cavity 16. By regulating 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 separated solid material into the collection member 30.

[0083] Referring to Figure 2 , Figure 4 or Figure 6 In some embodiments, the pressure regulating member 14 can comprise a first liquid inlet passage 141, a liquid outlet passage 142, a valve 143, and a second liquid inlet passage 144. The first liquid inlet passage 141 is formed in the centrifugal housing 11 for providing fluid into the sealed cavity 16; the liquid outlet passage 142 is formed in the centrifugal housing 11 for the fluid in the sealed cavity 16 to flow out; the valve 143 is used to close or open the liquid outlet passage 142; and the second liquid inlet passage 144 is formed in the centrifugal housing 11 for providing fluid to apply pressure to the valve 143, so that the valve 143 opens the liquid outlet passage 142, thereby enabling the fluid in the sealed cavity 16 to flow out through the liquid outlet passage 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.

[0084] 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).

[0085] 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.

[0086] 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.

[0087] 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; to supply fluid to the first liquid inlet channel 141 through the second ring groove 4002, to increase the fluid in the sealing cavity 16, to increase the pressure. The second channel 402 is used to communicate the first ring groove 4001 and the third ring groove 4003, to supply fluid to the second liquid inlet channel 144 through the first ring groove 4001. The fluid can be water, for example.

[0088] 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.

[0089] In some embodiments, referring to Figure 8 The centrifugal shell 11 forms a feed cavity 1103 radially inside the centrifugal cavity 1101, and the solid-liquid mixture material from the feed and discharge assembly 20 can enter the feed cavity 1103. The radially inner side of the centrifugal shell 11 is provided with a plurality of feed holes 11111 in fluid communication with the feed cavity 1103 in the circumferential direction, and the solid-liquid mixture material entering the feed cavity 1103 can enter the centrifugal cavity 1101 through the plurality of feed holes 11111 under the action of centrifugal force. The feed piece 21 has a discharge port, and the discharge port of the feed piece 21 is located in the feed cavity 1103, so that the solid-liquid mixture material flowing out of the discharge port of the feed piece 21 can enter the feed cavity 1103. When the feed piece 21 is a pipe, the discharge port of the feed piece 21 is a side port of the pipe located in the feed cavity 1103.

[0090] Referring to Figure 2 , Figure 4 or Figure 6 In some embodiments, the centrifugal shell 11 can include a first shell segment 111 matched with the feed and discharge assembly 20, a second shell segment 112 connected with the drive 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, the second shell segment 112 and the third shell segment 113 jointly form an annular centrifugal cavity 1101. In some embodiments, the pressure regulating piece 14 is arranged on the second shell segment 112.

[0091] In some embodiments, the first shell segment 111 forms the feed cavity 1103, and the feed hole 11111 is formed in the first shell segment 111.

[0092] Referring to Figure 6 and Figure 9In some embodiments, the first shell segment 111 can include a first tube 1111, a first cover 1112 closing one end of the first tube 1111, and a second cover 1113 extending radially outward from the other end of the first tube 1111. The first tube 1111 forms an inlet hole 11111 adjacent to one side of the first cover 1112; the solid-liquid mixture is introduced into the first tube 1111 via the inlet-outlet assembly 20 and enters the centrifugal cavity 1101 via the inlet hole 11111. The first tube 1111 and the first cover 1112 form an inlet cavity 1103. In such embodiments, when the centrifugal assembly 10 is rotating, the solid-liquid mixture can directly enter the centrifugal cavity 1101 for separation under the action of centrifugal force after being introduced into the first tube 1111 via the inlet-outlet assembly 20, which is conducive to improving the feeding efficiency and separation efficiency.

[0093] Referring to Figure 6 and Figure 9 In some embodiments, the first shell segment 111 further includes an extension 1115 extending from the second cover 1113 away from the first cover 1112, and the extension 1115 and the second cover 1113 together form a liquid temporary storage cavity 24. In such embodiments, when the centrifugal assembly 10 is rotating, 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.

[0094] In some embodiments, the feeding member 21 can be arranged radially inward of the first tube 1111 to supply the solid-liquid mixture to the centrifugal cavity 1101. In some embodiments, a first tube segment can be arranged radially inward of the first tube 1111, and the solid-liquid mixture flows out of the first tube segment 211 and enters the centrifugal cavity 1101 via the inlet hole 11111 on the first tube 1111.

[0095] In some embodiments, the limiting portion 213 of the feeding member 21 can limit the axial position of the liquid suction member 23 to avoid contact between the liquid suction member 23 and the second cover 1113 forming the liquid temporary storage cavity 24.

[0096] 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 tube 1111 and the feeding member 21, so that the centrifugal assembly 10 can rotate relative to the inlet-outlet assembly 20. In some embodiments, the liquid temporary storage cavity 24 is located on one axial side of the centrifugal cavity 1101.

[0097] Referring to Figure 10In 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.

[0098] 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.

[0099] 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.

[0100] Referring to Figure 5 、 Figure 6 and Figure 16 The collecting member 30 is arranged on the radially outer side of the second shell segment 112, and the radially outer side of the second shell segment 112 is provided with a plurality of solid material outlets 1102 in the circumferential direction 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 arranges the plurality of solid material outlets 1102 on the second shell segment 112, and arranges the collecting member 30 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 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 beneficial to improve the separation efficiency.

[0101] 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.

[0102] Referring to Figure 6 and Figure 8In some embodiments, the centrifugal main body 12 comprises a plurality of centrifugal units 121 arranged in axial stacking, each centrifugal unit 121 being configured to separate the solid-liquid mixture by rotation. The plurality of centrifugal units 121 are arranged such that the solid-liquid mixture can be distributed to the plurality of centrifugal units 121 for simultaneous separation by the plurality of centrifugal units 121, and then enter the liquid temporary storage chamber 24 after flowing through 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 conducive to improving the separation efficiency.

[0103] In some embodiments, the centrifugal units 121 are arranged such that when they rotate, the liquid in the solid-liquid mixture can move upward along the centrifugal units 121, and the solid in the solid-liquid mixture can move downward along the centrifugal units 121, thereby facilitating the solid and the liquid to exit the centrifugal chamber 1101 respectively.

[0104] Referring to Figure 6 and Figure 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 to the end of the first mounting member 122 away from the second cover member 1113, and is connected to the second shell segment 112. The plurality of centrifugal units 121 are arranged in stacking on the second mounting member 123. The solid-liquid mixture entering the centrifugal chamber 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 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 improving the separation efficiency of the centrifugal units 121.

[0105] In some embodiments, all the centrifugal units 121 are clamped by the inclined portion 1114 and the second mounting member 123 to achieve positioning of the centrifugal units 121.

[0106] Referring to Figure 2 , Figure 4 or Figure 6 In some embodiments, the drive shaft 41 can be connected to the second mounting member 123. In some embodiments, the first pipe member 1111 is coaxial with the drive shaft 41.

[0107] 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 static 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 be driven to rotate together.

[0108] In some embodiments, the positioning portion 1221 can be a protrusion, and the positioning matching portion 1211 can be a groove.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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. 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 sealingly matched by a sealing ring to prevent liquid from entering below the groove.

[0113] Referring to Figures 14 to 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, so that the solid-liquid mixture in the troughs 1231 can flow to the centrifugal units 121 under the action of centrifugal force through the through holes 1212, which is conducive to improving the separation efficiency of the centrifugal units 121.

[0114] 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.

[0115] 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, and the surface of the flow guide 1214 can protrude 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 solid-liquid mixture flowing through the centrifugal body 1213 can rotate synchronously with the centrifugal body 1213 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.

[0116] In some embodiments, the number of flow guides 1214 can be 4-8.

[0117] 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 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 and outlet assembly 20 through the plurality of channels, which is conducive to improving the efficiency of the liquid moving to the liquid inlet and outlet assembly 20, thereby improving the separation efficiency.

[0118] Referring to Figure 11 and Figure 14 In some embodiments, the flow guide 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 guide effect.

[0119] Referring to Figure 14 and Figure 18 In some embodiments, the spiral passage 231 of the liquid suction member 23 is opposite in rotation direction to the flow guide member 1214 of the centrifugal unit 121, so that the liquid separated by the centrifugal unit 121 can be sucked into the liquid outlet passage 25.

[0120] Referring to Figure 11 and Figure 14 In 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 arranged 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 to 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 that the liquid and the solid material in the solid-liquid mixture can be separated. 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. In this way, when the first mounting member 122 rotates with the second mounting member 123, the centrifugal body 1213 can be rotated, and at the same time, the separation of the liquid and the solid material can be achieved by the different movement directions of the liquid and the solid material on the surface of the tapered flow guide section 12131.

[0121] Referring to 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 some embodiments, the tapered flow guide section 12131 extends upwardly and upwardly from the lower end thereof towards 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 rotated synchronously with the centrifugal body 1213 under the flow guiding effect of the flow guide member 1214.

[0122] 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.

[0123] Referring to Figure 16 In some embodiments, when all the centrifugal units 121 are sleeved on the first mounting member 122, the through holes 1212 of the respective centrifugal units 121 are respectively aligned in the axial direction, and the flow guide members 1214 of the respective centrifugal units 121 are respectively aligned. In such embodiments, it is beneficial to allow the solid-liquid mixture in the trough 1231 to flow to the respective centrifugal units 121 through the through holes 1212 under the centrifugal force.

[0124] In 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.

[0125] 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.

[0126] Referring to Figure 2 , Figure 4 or Figure 6 , in some embodiments, the movable member 13 forms a movable guide surface 131, which can allow the solid material entering the movable member 13 to move along the movable guide surface 131 towards the solid material outlet 1102 under the centrifugal force, so that 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.

[0127] 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, and the movable guide surface 131 can be a conical surface extending obliquely from bottom to top towards the radial outside.

[0128] 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.

[0129] Referring to Figure 2 , Figure 4 or Figure 6In some embodiments, the surface of the movable member 13 along its axial direction facing the second shell segment 112 is adapted to the surface of the second shell segment 112 facing the movable member 13. Such arrangement makes the radial thickness of the sealed cavity 16 uniform, which is conducive to the fluid in the sealed cavity 16 uniformly applying pressure to the movable member 13 during the adjustment of the pressure in the sealed cavity 16 by the pressure adjusting member 14.

[0130] In some embodiments, the surface of the movable member 13 along its axial direction facing away from the second shell segment 112 includes a mating surface cooperating with the third shell segment 113, a movable guide surface 131, an annular surface, and a tapered surface parallel to the second mounting member 123, which together form an annular accommodating groove at the bottom of the centrifugal cavity 1101.

[0131] 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 member 1214 of the centrifugal unit 121.

[0132] 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 cooperating member 1121 is formed between two adjacent solid material outlets 1102, and the discharge guide surface 11211 is formed on the surface of the cooperating member 1121 facing the centrifugal main body 12. Such arrangement is conducive to the assembly of the third shell segment 113 and 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. Referring to Figure 7 In some embodiments, the third shell segment 113 is pressed against the cooperating member 1121, and the third shell segment 113 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.

[0133] 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 with 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 with the bottom shell body 5111, and the bearings 91 are sealingly connected with the drive shaft 41.

[0134] In some embodiments, referring to Figure 23The 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 piece 921 and a shaft sleeve body 922, the bearing 91 is arranged in the shaft sleeve body 922, 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 in sealing connection with the bottom shell body 5111.

[0135] In some embodiments, the shaft sleeve 92 is provided with a through hole 923, the driving shaft 41 can pass through the through hole 923 of the shaft sleeve 92 and extend into the accommodating cavity 53.

[0136] 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.

[0137] 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 facilitating liquid withdrawal, characterized in that, The centrifugal assembly is configured to separate the solid-liquid mixture into liquid and solid materials. The liquid inlet and outlet assembly is configured to allow the liquid separated from the centrifugal assembly to flow out of the centrifugal assembly. The driving assembly is configured to drive the centrifugal assembly to rotate relative to the liquid inlet and outlet assembly, so as to separate the solid-liquid mixture. The liquid inlet and outlet assembly comprises: The feeding member is arranged radially inward of the centrifugal assembly, and is configured to supply the solid-liquid mixture to the centrifugal assembly. The liquid outlet fitting member is arranged radially outward of the feeding member, and is configured to cooperate with the feeding member to form a liquid outlet channel between the liquid outlet fitting member and the feeding member. The liquid suction member is configured to suck the liquid separated from the centrifugal assembly into the liquid outlet channel. The liquid suction member comprises an annular body and an annular cover plate. The annular body is connected to the liquid outlet fitting member. The annular cover plate is connected to the feeding member. The annular body is configured to form a plurality of spiral grooves on a side thereof facing the annular cover plate, so as to form the plurality of spiral channels together with the annular cover plate. The width of the spiral grooves radially outward of the annular body is greater than the width of the spiral grooves radially inward of the annular body.

2. The apparatus of claim 1, wherein, The centrifugal assembly is arranged in the accommodating cavity, and is configured to rotate relative to the housing. The liquid inlet and outlet assembly is arranged in the housing.

3. The apparatus of claim 2, wherein, The housing comprises a housing body and a detachable member detachably connected to the housing body.

4. The apparatus of claim 1, wherein, The housing body and the detachable member are configured to form the accommodating cavity together. The centrifugal assembly comprises a centrifugal shell configured to form a centrifugal cavity and a liquid temporary storage cavity in fluid communication with the centrifugal cavity, and a centrifugal body arranged in the centrifugal cavity. The centrifugal body is configured to rotate together with the centrifugal shell to separate the solid-liquid mixture, and the liquid separated by the centrifugal body is configured to flow into the liquid temporary storage cavity under the centrifugal force. The liquid suction member is arranged in the liquid temporary storage cavity, and is configured to suck the liquid in the liquid temporary storage cavity into the liquid outlet channel.

5. The apparatus of claim 4, wherein, The centrifugal shell comprises a first shell segment configured to cooperate with the liquid inlet and outlet assembly, a second shell segment configured to connect to the driving assembly, and a third shell segment connecting the first shell segment and the second shell segment. The first shell segment, the second shell segment, and the third shell segment are configured to form an annular centrifugal cavity together. The first shell segment comprises a first pipe member, a first cover member closing one end of the first pipe member, and a second cover member extending radially outward at the other end of the first pipe member.

6. The apparatus of claim 4, wherein, ​ ​ ​ ​ 7. The apparatus of claim 6, wherein, ​ ​ ​ The first pipe is formed with a feeding hole adjacent to one side of the first cover for the solid-liquid mixture to enter the centrifugal cavity; The solid-liquid mixture enters the first pipe through the liquid inlet and outlet assembly and enters the centrifugal cavity through the feeding hole; The first shell segment further comprises an extension extending from the second cover away from the first cover, and the extension and the second cover jointly form the liquid temporary storage cavity.

8. The apparatus of claim 6, wherein, The centrifugal main body comprises a plurality of centrifugal units arranged in an axial stack, and the plurality of centrifugal units are arranged such that the solid-liquid mixture entering the centrifugal cavity can be distributed to the plurality of centrifugal units for simultaneous separation of the solid-liquid mixture by the plurality of centrifugal units.

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