Centrifugal solid-liquid separator

Abstract

The utility model provides a centrifugal solid-liquid separator which comprises a centrifugal machine main body, the left end of the centrifugal machine main body is rotatably connected with a feeding shell, and the centrifugal solid-liquid separator further comprises a material conveying and crushing structure arranged on the outer side of the feeding shell; and the screening structure is arranged in the feeding shell. Friction resistance during rotation of the rotating cylinder can be reduced through balls and lubricating oil, a material receiving frame can be driven to rotate by means of the gravity of falling materials, the materials are screened through a screening rod, the large-particle materials are conveyed upwards into a smashing shell through a material conveying screw, and the large-particle materials are conveyed back into a feeding hopper after being smashed again. And large-particle materials are conveniently and well prevented from entering the centrifugal machine main body to cause blockage in the centrifugal machine main body, and the falling materials are conveniently and well guided and blocked through the baffle while rotation of the material receiving frame is not affected.

Description

Technical Field

[0001] The utility model relates to the field of centrifuges, and more particularly to a centrifugal solid-liquid separator. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate the components in a mixture of liquid and solid particles or liquid and liquid. Centrifuges are mainly used to separate solid particles from a suspension, or to separate two immiscible liquids with different densities in an emulsion. It can also be used to remove liquid from wet solids, such as wringing wet clothes in a washing machine. Special ultra-high-speed tubular separators can also separate gas mixtures with different densities. Some sedimentation centrifuges can also classify solid particles according to density or particle size, taking advantage of the fact that solid particles with different densities or particle sizes have different sedimentation rates in a liquid.

[0003] In the existing Chinese utility model, the publication number CN219092383U discloses a solid-liquid separation horizontal centrifuge. The upper surface of the support frame is fixed with a feed cylinder. A rotating shaft is rotatably installed inside the feed cylinder. A screw conveyor is fixed on the outer side of the rotating shaft. One side of the feed cylinder is fixedly installed with a centrifugal cylinder. An inner cylinder communicating with the feed cylinder is rotatably installed inside the centrifugal cylinder. Centrifugal holes are equidistantly arranged on the inner cylinder, and push plates are equidistantly installed inside the inner cylinder. One end of the inner cylinder penetrates through the centrifugal cylinder and is installed with a slag discharge pipe. In this utility model, the rotating shaft is driven to rotate by a first transmission member, and the screw conveyor is driven to rotate by the rotating shaft, so as to facilitate the input of materials. The inner cylinder is driven to rotate by a second transmission member, so as to realize the centrifugation of materials. Under the action of the push plates, the solid slag is pushed inside the inner cylinder, reducing the space occupation inside the inner cylinder, thereby avoiding affecting the centrifugation effect and improving the practicability of the equipment.

[0004] Referring to the above solid-liquid separation horizontal centrifuge, the centrifuge feeds materials through the feed cylinder. However, the feed cylinder cannot screen materials with larger particles well. When the raw material particles entering the centrifuge are too large, during the centrifugation process, the materials with larger particles will block the internal screw, resulting in the blockage of the centrifuge, thereby affecting the overall efficiency of solid-liquid separation. Therefore, how to better avoid large-particle materials from entering the centrifuge main body is an important problem to be solved in the design of centrifugal solid-liquid separators. Summary of the Utility Model

[0005] The utility model provides a centrifugal solid-liquid separator to solve the problem of better avoiding large-particle materials from entering the centrifuge main body.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] The utility model provides a centrifugal solid-liquid separator, which comprises a centrifuge main body. The left end of the centrifuge main body is rotationally connected to a feed housing, and further comprises:

[0008] A material conveying and crushing structure, which is arranged outside the feed housing;

[0009] A screening structure, which is arranged inside the feed housing and screens the falling materials;

[0010] A baffle structure, which is arranged above the screening structure.

[0011] Preferably, a first support plate is rotationally connected to the right end of the centrifuge main body, a rotating connection block is rotationally connected to the side wall on the left side of the feed housing, one end of the rotating connection block is fixedly connected to a auger, the other end of the rotating connection block is fixedly connected to a fourth rotating gear, the other end of the fourth rotating gear is fixedly connected to a second rotating rod, the other end of the second rotating rod is rotationally connected to a second support plate, a driving member is fixedly connected to the side wall of the second support plate, and the driving end of the driving member is fixedly connected to the second rotating rod.

[0012] In this technical solution, the driving member can be a component that drives the second rotating rod to rotate, such as a rotating motor. The driving member drives the second rotating rod to rotate, the second rotating rod drives the fourth rotating gear to rotate, the fourth rotating gear drives the rotating connection block to rotate, and the rotating connection block drives the auger to rotate. The auger conveys small-particle materials into the centrifuge main body for centrifugal treatment.

[0013] Preferably, a feed funnel is fixedly connected to the top of the feed housing.

[0014] In this technical solution, materials are added into the feed housing through the feed funnel.

[0015] Preferably, the material conveying and crushing structure comprises a feed cylinder, a feed screw, a first rotating gear, a second rotating gear and a feed pipe. The feed cylinder is fixedly connected to the side wall of the feed housing, the feed screw is rotationally connected inside the feed cylinder, the first rotating gear is fixedly connected to the top of the feed screw, the second rotating gear is fixedly connected to the bottom of the feed screw, the second rotating gear meshes with the fourth rotating gear, and the feed pipe is fixedly connected to the side wall of the feed housing where it is connected to the feed cylinder. The end of the feed pipe at the feed housing is inclined inward.

[0016] In this technical solution, the second rotating gear rotates as the fourth rotating gear rotates. The second rotating gear drives the feed screw to rotate. The feed screw conveys large-particle materials upward and conveys them into the crushing housing through the connecting pipe.

[0017] Preferably, the feeding and crushing structure includes a third rotating gear, a crushing housing, a first rotating rod, crushing blades, a material passing pipe, a supporting ring plate and a connecting pipe. The supporting ring plate is fixedly connected to the top of the feeding housing. The crushing housing is fixedly connected to the top of the supporting ring plate. The first rotating rod is rotatably connected to the inner side wall of the crushing housing. The crushing blades are fixedly connected to the side wall of the first rotating rod at equal intervals. The top of the first rotating rod is fixedly connected to the third rotating gear. The third rotating gear meshes with the first rotating gear. The material passing pipe is fixedly connected between the crushing housing and the feeding funnel. The connecting pipe is fixedly connected between the crushing housing and the feeding cylinder.

[0018] In this technical solution, the first rotating gear drives the third rotating gear to rotate. The third rotating gear drives the first rotating rod to rotate. The first rotating rod drives the crushing blades to rotate. The crushing blades crush the large-particle materials. The crushed materials return to the feeding funnel through the material passing pipe.

[0019] Preferably, the inner bottom wall of the crushing housing is inclined towards the material passing pipe.

[0020] In this technical solution, it is convenient for the large-particle materials after crushing to enter the material passing pipe.

[0021] Preferably, the baffle structure includes a baffle and a fixing plate. The baffle is rotatably connected to the inner side wall of the feeding housing. The fixing plate is fixedly connected to the inner top wall of the feeding housing. The side wall of the fixing plate is attached to the side wall of the baffle. The side walls on both sides of the baffle are attached to the inner side wall of the feeding housing.

[0022] In this technical solution, the baffle blocks the left side of the feeding funnel, preferably blocking the falling materials to prevent the materials from falling into the receiving rack on the left side of the baffle, which affects the rotation of the receiving rack. When the receiving rack rotates, the baffle can rotate and tilt to the right along with the rotation of the receiving rack. While not affecting the rotation of the receiving rack, it always adheres to the side wall of the receiving rack to guide and block the falling materials.

[0023] Preferably, the screening structure includes screening rods and connecting plates. The screening rods are in an arc-shaped structure. One end of the screening rods is fixedly connected to the inner side wall of the feeding housing at equal intervals. The other end of the screening rods is fixedly connected to the connecting plates at equal intervals. The connecting plates are fixedly connected to the side wall of the feeding housing. The connecting plates are attached to the bottom of the feeding pipe.

[0024] In this technical solution, the screening rods screen the materials. The materials with small particles will fall through the gaps between the screening rods, while the materials with larger particles are blocked by the screening rods and stay on the screening rods.

[0025] Preferably, the screening structure includes a rotating cylinder, a material receiving rack, ball bearings, lubricating oil, and fixing rods. The fixing rods are fixedly connected to the side walls on both sides of the feeding housing. The rotating cylinder is rotatably connected to the side walls of the fixing rods. The ball bearings are rotatably connected to the inner side wall of the rotating cylinder at equal intervals. The side walls of the ball bearings abut against the fixing rods. The space between the rotating cylinder and the fixing rods is filled with lubricating oil. Arc-shaped material receiving racks are fixedly connected to the outer side wall of the rotating cylinder at equal intervals.

[0026] In this technical solution, the material falls from the feeding funnel and lands in the lower material receiving rack. After one side of the material receiving rack catches the material, due to the increase in gravity, the material receiving rack on that side will rotate downward under the action of gravity, thereby driving the rotating cylinder to rotate. The ball bearings in the rotating cylinder can reduce the frictional resistance during rotation, and the lubricating oil can further reduce the frictional resistance during rotation, enabling the rotating cylinder to rotate under the action of a very small force. The rotating cylinder drives the other empty material receiving racks to rotate.

[0027] Preferably, the side wall of the material receiving rack fits against the top side wall of the screening rod, and the side walls on both sides of the material receiving rack fit against the inner side wall of the feeding housing.

[0028] In this technical solution, when staying on the screening rod, it will be pushed to the left as the next material receiving rack rotates. When it is pushed to the top of the connecting plate, it will fall into the material conveying cylinder through the feeding pipe.

[0029] Preferably, the clamping rack and the clamping groove cooperate with each other.

[0030] In this technical solution, when the clamping rack is clamped into the clamping groove, the moving rack can be fixed and restricted.

[0031] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0032] The positive and progressive effects of the present invention are as follows:

[0033] 1. After one side of the material receiving rack catches the material, due to the increase in gravity, the material receiving rack on that side will rotate downward under the action of gravity. The ball bearings in the rotating cylinder can reduce the contact area with the fixing rod, thereby reducing the frictional resistance during rotation. The lubricating oil can further reduce the frictional resistance during rotation, enabling the rotating cylinder to rotate under the action of a very small force, which is convenient for better utilizing the gravity of the falling material to drive the material receiving rack to rotate.

[0034] 2. When the material receiving rack filled with materials rotates onto the screening rod, the materials will fall from the inclined material receiving rack onto the screening rod. The screening rod screens the materials. The large particle materials staying on the screening rod will be pushed to the left into the material conveying cylinder as the next material receiving rack rotates. The material conveying screw conveys the large particle materials upward into the crushing housing, where they are crushed again and then sent back into the feeding funnel, which helps to better avoid large particle materials from entering the centrifuge main body and causing blockage inside the centrifuge main body.

[0035] 3. By blocking the left side of the feeding funnel with a baffle, the falling materials can be better blocked to prevent them from falling into the material receiving rack on the left side of the baffle, which may affect the rotation of the material receiving rack. When the material receiving rack rotates, the baffle can rotate and tilt to the right along with the rotation of the material receiving rack and always fit on the side wall of the material receiving rack, which helps to better guide and block the falling materials while not affecting the rotation of the material receiving rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present utility model.

[0037] Figure 2 It is a schematic diagram of the overall internal structure of the present utility model.

[0038] Figure 3 It is a schematic diagram of the overall internal structure of the present utility model as seen from above.

[0039] Figure 4 For the present utility model Figure 2 Schematic diagram of the partial enlarged structure at A.

[0040] Figure 5 It is a schematic diagram of the three-dimensional structure of the connection between the rotating cylinder and the material receiving rack of the present utility model.

[0041] DESCRIPTION OF THE REFERENCE NUMERALS

[0042] 1. Base; 2. First support plate; 3. Centrifuge main body; 4. Feeding housing; 5. Feeding funnel; 6. Material conveying and crushing structure; 601. Material conveying cylinder; 602. Material conveying screw; 603. First rotating gear; 604. Second rotating gear; 605. Feeding pipe; 611. Third rotating gear; 612. Crushing housing; 613. First rotating rod; 614. Crushing blade; 615. Material passing pipe; 616. Support ring plate; 617. Connecting pipe; 7. Screening structure; 701. Screening rod; 702. Connecting plate; 711. Rotating cylinder; 712. Material receiving rack; 713. Ball; 714. Lubricating oil; 715. Fixed rod; 8. Baffle structure; 801. Baffle; 802. Fixed plate; 9. Driving part; 10. Second rotating rod; 11. Fourth rotating gear; 12. Rotating connection block; 13. Auger; 14. Second support plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] The present utility model will be further described below by way of embodiments, but the present utility model is not limited to the scope of the described embodiments accordingly.

[0044] As Figures 1-5 shown, a centrifugal solid-liquid separator includes a centrifuge main body 3, the left end of the centrifuge main body 3 is rotatably connected to a feed housing 4, and further includes:

[0045] A material conveying and crushing structure 6, the material conveying and crushing structure 6 is arranged outside the feed housing 4;

[0046] A screening structure 7, the screening structure 7 is arranged inside the feed housing 4, and the screening structure 7 screens the falling materials;

[0047] A baffle structure 8, the baffle structure 8 is arranged above the screening structure 7.

[0048] The right end of the centrifuge main body 3 is rotatably connected to a first support plate 2, the side wall on the left side of the feed housing 4 is rotatably connected to a rotating connection block 12, one end of the rotating connection block 12 is fixedly connected to an auger 13, the other end of the rotating connection block 12 is fixedly connected to a fourth rotating gear 11, the other end of the fourth rotating gear 11 is fixedly connected to a second rotating rod 10, the other end of the second rotating rod 10 is rotatably connected to a second support plate 14, a driving member 9 is fixedly connected to the side wall of the second support plate 14, and the driving end of the driving member 9 is fixedly connected to the second rotating rod 10.

[0049] The driving member 9 can be a component that drives the second rotating rod 10 to rotate, such as a rotating motor, etc. The driving member 9 drives the second rotating rod 10 to rotate, the second rotating rod 10 drives the fourth rotating gear 11 to rotate, the fourth rotating gear 11 drives the rotating connection block 12 to rotate, and the rotating connection block 12 drives the auger 13 to rotate. The auger 13 conveys small particle materials into the centrifuge main body 3 for centrifugal treatment.

[0050] The top of the feed housing 4 is fixedly connected to a feed funnel 5.

[0051] The materials are added into the feed housing 4 through the feed funnel 5.

[0052] The feeding and crushing structure 6 includes a feeding cylinder 601, a feeding screw 602, a first rotating gear 603, a second rotating gear 604, and a feeding pipe 605. The feeding cylinder 601 is fixedly connected to the side wall of the feeding housing 4. The feeding screw 602 is rotatably connected inside the feeding cylinder 601. The top of the feeding screw 602 is fixedly connected to the first rotating gear 603, and the bottom of the feeding screw 602 is fixedly connected to the second rotating gear 604. The second rotating gear 604 meshes with the fourth rotating gear 11. The side wall of the feeding cylinder 601 connected to the feeding housing 4 is fixedly connected with a feeding pipe 605, and the end of the feeding pipe 605 at the feeding housing 4 is inclined inward.

[0053] The second rotating gear 604 rotates as the fourth rotating gear 11 rotates. The second rotating gear 604 drives the feeding screw 602 to rotate. The feeding screw 602 conveys large-particle materials upward and conveys them into the crushing housing 612 through the connecting pipe 617.

[0054] The feeding and crushing structure 6 further includes a third rotating gear 611, a crushing housing 612, a first rotating rod 613, crushing blades 614, a material-passing pipe 615, a supporting ring plate 616, and a connecting pipe 617. The supporting ring plate 616 is fixedly connected to the top of the feeding housing 4. The top of the supporting ring plate 616 is fixedly connected to the crushing housing 612. The first rotating rod 613 is rotatably connected to the inner side wall of the crushing housing 612. The crushing blades 614 are fixedly connected to the side wall of the first rotating rod 613 at equal intervals. The top of the first rotating rod 613 is fixedly connected to the third rotating gear 611. The third rotating gear 611 meshes with the first rotating gear 603. A material-passing pipe 615 is fixedly connected between the crushing housing 612 and the feeding funnel 5, and a connecting pipe 617 is fixedly connected between the crushing housing 612 and the feeding cylinder 601.

[0055] The first rotating gear 603 drives the third rotating gear 611 to rotate. The third rotating gear 611 drives the first rotating rod 613 to rotate. The first rotating rod 613 drives the crushing blades 614 to rotate. The crushing blades 614 crush the large-particle materials, and the crushed materials return to the feeding funnel 5 through the material-passing pipe 615.

[0056] The inner bottom wall of the crushing housing 612 is inclined towards the material-passing pipe 615.

[0057] It is convenient for the large-particle materials after crushing to enter the material-passing pipe 615.

[0058] The baffle structure 8 includes a baffle 801 and a fixing plate 802. The baffle 801 is rotatably connected to the inner side wall of the feeding housing 4, the fixing plate 802 is fixedly connected to the inner top side wall of the feeding housing 4, the side wall of the fixing plate 802 is attached to the side wall of the baffle 801, and the side walls on both sides of the baffle 801 are attached to the inner side wall of the feeding housing 4.

[0059] The baffle 801 blocks the left side of the feeding funnel 5, preferably blocking the falling materials to prevent the materials from falling into the receiving rack 712 on the left side of the baffle 801, which affects the rotation of the receiving rack 712. When the receiving rack 712 rotates, the baffle 801 can rotate and tilt to the right along with the rotation of the receiving rack 712. While not affecting the rotation of the receiving rack 712, it always adheres to the side wall of the receiving rack 712 to guide and block the falling materials.

[0060] The screening structure 7 includes screening rods 701 and a connecting plate 702. The screening rods 701 are in an arc-shaped structure. One end of the screening rods 701 is fixedly connected to the inner side wall of the feeding housing 4 at equal intervals, the other end of the screening rods 701 is fixedly connected to the connecting plate 702 at equal intervals, the connecting plate 702 is fixedly connected to the side wall of the feeding housing 4, and the connecting plate 702 is attached to the bottom of the feeding pipe 605.

[0061] The screening rods 701 screen the materials. The materials with small particles will fall through the gaps between the screening rods 701, while the materials with larger particles are blocked by the screening rods 701 and stay on the screening rods 701.

[0062] The screening structure 7 includes a rotating cylinder 711, a receiving rack 712, balls 713, lubricating oil 714, and a fixing rod 715. The fixing rod 715 is fixedly connected to the side walls on both sides of the feeding housing 4. The rotating cylinder 711 is rotatably connected to the side wall of the fixing rod 715. The balls 713 are rotatably connected to the inner side wall of the rotating cylinder 711 at equal intervals. The side walls of the balls 713 abut against the fixing rod 715. The gap between the rotating cylinder 711 and the fixing rod 715 is filled with lubricating oil 714. The arc-shaped receiving racks 712 are fixedly connected to the outer side wall of the rotating cylinder 711 at equal intervals.

[0063] The materials fall from the feeding funnel 5 and into the lower receiving rack 712. After one side of the receiving rack 712 catches the materials, due to the increase in gravity, the receiving rack 712 on that side will rotate downward under the action of gravity, thereby driving the rotation of the rotating cylinder 711. The balls 713 in the rotating cylinder 711 can reduce the frictional resistance during rotation, and the lubricating oil 714 can further reduce the frictional resistance during rotation, enabling the rotating cylinder 711 to rotate under the action of a very small force. The rotating cylinder 711 drives the other empty receiving racks 712 to rotate.

[0064] The side wall of the material receiving rack 712 is attached to the top side wall of the screening rod 701, and the side walls on both sides of the material receiving rack 712 are attached to the inner side wall of the feeding housing 4.

[0065] Staying on the screening rod 701, it will be pushed to the left as the next material receiving rack 712 rotates. When it is pushed to the top of the connecting plate 702, it will fall into the material conveying cylinder 601 through the feeding pipe 605.

[0066] When the utility model is in use, the electrical components that appear in this application are externally connected to a power supply and a control switch during use. When centrifuging the material, the material is added into the feeding housing 4 through the feeding funnel 5. The material falls from the feeding funnel 5 and into the lower material receiving rack 712. After one side of the material receiving rack 712 catches the material, due to the increase in gravity, the material receiving rack 712 on that side will rotate downward under the action of gravity, thereby driving the rotating cylinder 711 to rotate. The balls 713 in the rotating cylinder 711 can reduce the frictional resistance during rotation, and the lubricating oil 714 can further reduce the frictional resistance during rotation, enabling the rotating cylinder 711 to rotate with a very small force;

[0067] The rotating cylinder 711 drives the other empty material receiving racks 712 to rotate. When the material receiving rack 712 filled with material rotates onto the screening rod 701, the material will fall from the inclined material receiving rack 712 onto the screening rod 701. The screening rod 701 screens the material. The material with small particles will fall through the gaps between the screening rods 701. The driving member 9 drives the second rotating rod 10 to rotate, the second rotating rod 10 drives the fourth rotating gear 11 to rotate, the fourth rotating gear 11 drives the rotating connecting block 12 to rotate, and the rotating connecting block 12 drives the auger 13 to rotate. The auger 13 conveys the small particle material into the centrifuge main body 3 for centrifugation;

[0068] The material with larger particles is blocked by the screening rod 701 and stays on the screening rod 701. As the next material receiving rack 712 rotates, it is pushed to the left. When it is pushed to the top of the connecting plate 702, it will fall into the material conveying cylinder 601 through the feeding pipe 605. The second rotating gear 604 rotates as the fourth rotating gear 11 rotates. The second rotating gear 604 drives the material conveying screw 602 to rotate. The material conveying screw 602 conveys the large particle material upward and conveys it into the crushing housing 612 through the connecting pipe 617. The material conveying screw 602 drives the first rotating gear 603 to rotate, the first rotating gear 603 drives the third rotating gear 611 to rotate, the third rotating gear 611 drives the first rotating rod 613 to rotate, and the first rotating rod 613 drives the crushing blade 614 to rotate. The crushing blade 614 crushes the large particle material;

[0069] After the crushed material returns to the feeding funnel 5 through the material passing pipe 615, it falls into the receiving rack 712 below, and is re-transported onto the screening rod 701 as the receiving rack 712 rotates. The crushed material smoothly falls through the gaps of the screening rod 701, which can preferably prevent large-particle materials from entering the centrifuge main body 3 and causing blockage in the centrifuge main body 3. The baffle 801 is blocked on the left side of the feeding funnel 5, preferably blocking the falling material to prevent the material from falling into the receiving rack 712 on the left side of the baffle 801 and affecting the rotation of the receiving rack 712. When the receiving rack 712 rotates, the baffle 801 can rotate and tilt to the right as the receiving rack 712 rotates. While not affecting the rotation of the receiving rack 712, it always fits on the side wall of the receiving rack 712 to guide and block the falling material.

[0070] The present utility model is not limited to the above embodiments. No matter what changes are made in its shape or structure, they all fall within the protection scope of the present utility model. The protection scope of the present utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims

1. A centrifugal solid-liquid separator, comprising a centrifuge main body (3), wherein the left end of the centrifuge main body (3) is rotatably connected to a feed housing (4), characterized in that, It further includes: A feeding and crushing structure (6), which is arranged outside the feeding housing (4); A screening structure (7), which is arranged inside the feeding housing (4), and the screening structure (7) screens the falling materials; A baffle structure (8), which is arranged above the screening structure (7).

2. The centrifugal solid-liquid separator according to claim 1, wherein: A support plate one (2) is rotatably connected to the right end of the centrifuge main body (3), a rotating connection block (12) is rotatably connected to the side wall on the left side of the feeding housing (4), one end of the rotating connection block (12) is fixedly connected to an auger (13), the other end of the rotating connection block (12) is fixedly connected to a rotating gear four (11), the other end of the rotating gear four (11) is fixedly connected to a rotating rod two (10), the other end of the rotating rod two (10) is rotatably connected to a support plate two (14), a driving member (9) is fixedly connected to the side wall of the support plate two (14), and the driving end of the driving member (9) is fixedly connected to the rotating rod two (10).

3. The centrifugal solid-liquid separator according to claim 1, wherein: A feeding funnel (5) is fixedly connected to the top of the feeding housing (4).

4. The centrifugal solid-liquid separator according to claim 1, characterized in that: The feeding and crushing structure (6) includes a feeding cylinder (601), a feeding screw (602), a rotating gear one (603), a rotating gear two (604) and a feeding pipe (605). The feeding cylinder (601) is fixedly connected to the side wall of the feeding housing (4), the feeding screw (602) is rotatably connected inside the feeding cylinder (601), the rotating gear one (603) is fixedly connected to the top of the feeding screw (602), the rotating gear two (604) is fixedly connected to the bottom of the feeding screw (602), the rotating gear two (604) meshes with the rotating gear four (11), and a feeding pipe (605) is fixedly connected to the side wall of the feeding cylinder (601) connected to the feeding housing (4), and the end of the feeding pipe (605) at the feeding housing (4) is inclined inward.

5. The centrifugal solid-liquid separator according to claim 4, wherein: The feeding and crushing structure (6) includes a rotating gear three (611), a crushing housing (612), a rotating rod one (613), crushing blades (614), a material passing pipe (615), a support ring plate (616) and a connecting pipe (617). The support ring plate (616) is fixedly connected to the top of the feeding housing (4), the crushing housing (612) is fixedly connected to the top of the support ring plate (616), the rotating rod one (613) is rotatably connected to the inner side wall of the crushing housing (612), the crushing blades (614) are fixedly connected to the side wall of the rotating rod one (613) at equal intervals, the rotating gear three (611) is fixedly connected to the top of the rotating rod one (613), the rotating gear three (611) meshes with the rotating gear one (603), a material passing pipe (615) is fixedly connected between the crushing housing (612) and the feeding funnel (5), and a connecting pipe (617) is fixedly connected between the crushing housing (612) and the feeding cylinder (601).

6. The centrifugal solid-liquid separator according to claim 5, characterized in that: The inner bottom wall of the crushing housing (612) is inclined towards the material passing pipe (615).

7. The centrifugal solid-liquid separator according to claim 1, characterized in that: The baffle structure (8) includes a baffle (801) and a fixing plate (802). The baffle (801) is rotatably connected to the inner side wall of the feeding housing (4), the fixing plate (802) is fixedly connected to the inner top side wall of the feeding housing (4), the side wall of the fixing plate (802) is attached to the side wall of the baffle (801), and the side walls on both sides of the baffle (801) are attached to the inner side wall of the feeding housing (4).

8. The centrifugal solid-liquid separator according to claim 1, wherein: The screening structure (7) includes screening rods (701) and connecting plates (702). The screening rods (701) are in an arc-shaped structure. One end of the screening rods (701) is fixedly connected to the inner side wall of the feeding housing (4) at equal intervals, the other end of the screening rods (701) is fixedly connected to the connecting plates (702) at equal intervals, the connecting plates (702) are fixedly connected to the side wall of the feeding housing (4), and the connecting plates (702) are attached to the bottom of the feeding pipe (605).

9. The centrifugal solid-liquid separator according to claim 8, characterized in that: The screening structure (7) includes a rotating cylinder (711), a material receiving frame (712), balls (713), lubricating oil (714) and a fixing rod (715). The fixing rod (715) is fixedly connected to the side walls on both sides of the feeding housing (4), the rotating cylinder (711) is rotatably connected to the side wall of the fixing rod (715), the balls (713) are rotatably connected to the inner side wall of the rotating cylinder (711) at equal intervals, the side walls of the balls (713) are abutted against the fixing rod (715), the space between the rotating cylinder (711) and the fixing rod (715) is filled with lubricating oil (714), and arc-shaped material receiving frames (712) are fixedly connected to the outer side wall of the rotating cylinder (711) at equal intervals.

10. The centrifugal solid-liquid separator according to claim 9, wherein: The side wall of the material receiving frame (712) is attached to the top side wall of the screening rod (701), and the side walls on both sides of the material receiving frame (712) are attached to the inner side wall of the feeding housing (4).

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