Solid-liquid separation equipment

Abstract

The utility model relates to solid-liquid separation equipment. The solid-liquid separation equipment comprises a shell, a liquid discharge jacket, a spiral shaft and a driving device, a protrusion is annularly arranged on the radial side wall of the penetrating end of a driving shaft of the driving device, a shaft rod is in a hollow tube shape with an opening in the axial end, the penetrating end of the driving shaft is inserted and fixed into the shaft rod through the opening of the shaft rod, and the protrusion abuts against the opening end of a spiral shaft along the side wall of the axial end of the protrusion. A first sealing ring is arranged between the protrusion and the opening end of the spiral shaft, and the protrusion and the first sealing ring are consistent in the axial direction. Compared with existing solid-liquid separation equipment, the solid-liquid separation equipment has the advantages that the connecting sealing performance of the driving shaft and the spiral shaft of the driving device can be improved, and materials are prevented from permeating into the hollow cavity of the spiral shaft.

Description

Technical Field

[0001] The present application relates to the technical field of solid-liquid separation equipment, and in particular to a solid-liquid separation equipment. Background Art

[0002] In order to achieve self-sufficiency and waste utilization of cattle bedding in large-scale cattle farms, cattle farms usually pre-treat the manure, separate the solid and liquid, and then aerobically ferment it to make cattle bedding for reuse in the pens. In recent years, this technology has been increasingly widely used in large-scale cattle farms in China. Among them, using a spiral shaft solid-liquid separation equipment to remove excess water from the material is an important step in the production of cattle bedding.

[0003] The screw shaft type solid-liquid separator usually includes a driving device, a screw shaft and a shell. The driving shaft of the driving device penetrates into the shell and is connected to the screw shaft in the shell to drive the screw shaft to rotate. The shell is provided with a filtering device on the radial side wall of the screw shaft to filter out the water in the shell. The material enters the shell, and is continuously rotated and moved toward the discharge port under the rotation drive of the screw shaft. Under the action of the rotating centrifugal force, it has a tendency to pass out of the filtering device. The water is discharged through the filtering device, while the solid dry material is too large to be filtered and is blocked, remaining in the shell. The dry material is discharged from the discharge port under the drive of the screw shaft, thereby realizing the solid-liquid separation of the solid-liquid mixture.

[0004] However, in order to reduce consumables and save costs, existing solid-liquid separation equipment usually sets the spiral shaft to a hollow tube shape, and the driving shaft of the driving device is inserted into the spiral shaft. The connection between the two is located in the shell and the connection is not sealed enough. The solid-liquid mixture put into the shell can easily enter the middle internal cavity of the rotating shaft along the gap of the connection, and the solid-liquid separation cannot be performed, resulting in waste of materials.

[0005] Therefore, how to increase the sealing performance of the connection between the driving shaft of the driving device and the screw shaft to prevent the material from penetrating into the hollow cavity of the screw shaft has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0006] In order to increase the sealing performance of the connection between the driving shaft of the driving device and the screw shaft and prevent the material from penetrating into the hollow cavity of the screw shaft, the present application provides a solid-liquid separation device.

[0007] A solid-liquid separation device is provided to achieve the purpose of the utility model, comprising:

[0008] Shell, drain jacket, screw shaft and drive device;

[0009] The shell side wall is provided with a feed port, a filtrate port and a discharge port, the filtrate port is covered with a filter device, the drain jacket is fixed outside the shell, the filter device is located in the drain jacket, the spiral shaft and the inner wall of the drain jacket are both provided with a preset distance from the filter device, and the drain jacket side wall is provided with a drain port;

[0010] The spiral shaft is located in the housing, the feed port and the discharge port are arranged along the axial direction of the shaft of the spiral shaft, respectively close to the two ends of the shaft, and the filtrate port is arranged along the radial direction of the spiral blade of the spiral shaft;

[0011] The driving shaft of the driving device penetrates into the shell and is connected to the screw shaft for driving the screw shaft to rotate in the shell, wherein a radial side wall ring of one end of the driving shaft of the driving device is provided with a protrusion, and the shaft rod is in the shape of a hollow tube with an axial end open, and the inserted end of the driving shaft is inserted through the opening of the shaft rod and fixed in the shaft rod, and the side wall of one axial end of the protrusion abuts against the open end of the screw shaft, and a first sealing ring is provided between the protrusion and the open end of the screw shaft, and the axial directions of the protrusion and the first sealing ring are consistent.

[0012] Compared with the existing solid-liquid separation equipment, the present application can increase the sealing performance of the connection between the driving shaft of the driving device and the screw shaft, thereby preventing the material from penetrating into the hollow cavity of the screw shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram showing the structure of a solid-liquid separation device according to an embodiment of the present application;

[0014] Figure 2 A schematic diagram showing the structure of a solid-liquid separation device according to an embodiment of the present application;

[0015] Figure 3 A schematic diagram of the structure of the connection between the drive shaft and the screw shaft of the existing solid-liquid separation equipment is shown, and the penetration path of the mixed material is shown by the arrow in the figure.

[0016] Shell 100, feed port 110, screen 120, discharge port 130, bearing 140, sealing seat 150, second sealing ring 151, oil seal 152, drainage jacket 200, drainage port 210, shaft 310, first sealing ring 311, connecting portion 312, spiral blade 320, driving device 400, driving shaft 410, protrusion 411, top pressure cover 500, weight 510, mounting seat 600, driving shaft 700 of driving device of existing equipment, and opening end 800 of spiral shaft of existing equipment. DETAILED DESCRIPTION

[0017] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0018] Among them, it should be understood that the directions or positional relationships indicated by terms such as "length", "width", "height", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0019] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0020] The present application provides a solid-liquid separation device, including a shell 100, a drainage jacket 200, a spiral shaft and a driving device 400. The side wall of the shell 100 is provided with a feed port 110, a filtrate port and a discharge port 130, the filtrate port is covered with a filter device to filter the water in the shell out of the shell 100, the drainage jacket 200 is sleeved and fixed outside the shell 100, the filter device is located in the drainage jacket, the spiral shaft (the radial outer edge of the spiral blade 320) and the inner wall of the drainage jacket 200 are both provided with a preset distance from the filter device, the filter device is located in the drainage jacket 200, the water in the shell enters the interlayer space between the drainage jacket 200 and the shell 100 through the filter device, and the side wall of the drainage jacket 200 is provided with a drainage port 210;

[0021] It should be noted that the present application does not specifically limit the specific filtering method of the filtering device. As long as it has a filtering function and can filter water and block solid matter, the filter diameter allowed to pass through can be flexibly adjusted according to actual conditions. The filtering device is preferably a screen, which has a simple structure, is cheap and easy to obtain. A preset distance is set between the inner wall of the drainage jacket 200 and the radial outer edge of the spiral blade 320 and the screen 120.

[0022] The spiral shaft is located in the housing 100, and is provided with a shaft 310 and a spiral blade 320. The outer wall of the shaft 310 is provided with a spiral blade 320. The feed inlet 110 and the discharge outlet 130 are respectively close to the axial ends of the shaft 310, and the filtrate port is arranged along the radial direction of the spiral blade, that is, the filtrate port is close to the radial side of the spiral blade 320.

[0023] The driving device 400 is located outside the housing 100, and the driving shaft 410 of the driving device 400 penetrates into the housing 100. The driving device 400 is suitable for driving the spiral shaft connected to the driving shaft 410 to rotate, and the rotation direction of the spiral shaft is consistent with the axial direction of its spiral blade. Specifically:

[0024] The shaft 310 is in the shape of a hollow tube with one axial end open. A protrusion 411 is provided on the radial side wall ring of one end through which the drive shaft 410 is inserted. The end of the drive shaft 410 that is inserted is inserted through the opening of the shaft and fixed in the shaft. The axial directions of the drive shaft 410 and the spiral shaft are consistent. The protrusion 411 abuts against the open end of the spiral shaft along the side wall of one axial end thereof. A first sealing ring 311 is provided between the protrusion 411 and the open end of the spiral shaft. The protrusion 411 and the first sealing ring 311 are consistent in axial direction.

[0025] The present application provides a solid-liquid separation occasion for the mixed material by setting a shell 100; driving the spiral shaft to rotate by setting a driving device 400; by setting a spiral shaft, the spiral shaft rotates and drives the solid-liquid mixed material to rotate and move axially, and the mixed material has a tendency to fly outward during the rotation process, which is limited and blocked by the side wall of the shell 100, but when passing through the filter screen at the filtrate port of the shell 100, the solid and liquid in the mixed material have a tendency to be squeezed out / thrown out, and the solid is too large to pass through the filter screen pores and remains in the internal cavity of the shell 100, while the liquid smoothly passes through the filter screen pores into the interlayer space between the filter screen and the drainage jacket 200, and is discharged through the drainage port 210 on the side wall of the drainage jacket 200. The solid is collected through the discharge port 130 at the end point (one axial end) of the spiral shaft transportation, and is used to prepare cattle mattress materials.

[0026] Compared with the existing solid-liquid separation device, such as Figure 3 As shown, the plug-in connection between the shaft of the driving device 400 and the screw shaft (generally the axial end thereof close to the feed port 110) is not sufficiently sealed, and the solid-liquid mixture put into the shell easily enters the middle internal cavity of the screw shaft along the gap of the connection. This part of the infiltrated material cannot participate in the rotating filtrate extrusion to achieve solid-liquid separation, and it is also difficult to remove it from the internal cavity for reprocessing. After it is removed, a new solid-liquid separation is restarted and part of the mixture still infiltrates, which causes a waste of material and driving energy, reduces the utilization rate of the material, and increases the cost of solid-liquid separation and cleaning equipment.

[0027] The present application provides an annular protrusion 411 on the driving shaft 410 of the driving device 400, the protrusion 411 matches the open end of the spiral shaft, the axial end side wall of the protrusion 411 is in contact with the open end side wall of the spiral shaft, and a first sealing ring 311 is provided between the axial end side wall of the protrusion 411 and the open end side wall of the spiral shaft, and the elastic property of the first sealing ring 311 is used to further enhance the connection sealing between the protrusion 411 and the open end side wall of the spiral shaft, thereby enhancing the connection sealing between the driving shaft 410 of the driving device 400 and the spiral shaft, and preventing the mixed material from penetrating into the hollow cavity of the spiral shaft.

[0028] In a possible implementation, the filtrate port is arranged near the liquid outlet. The side wall at the discharge end of the housing 100 is used to extrude the material in the reverse direction (opposite to the conveying direction of the screw shaft), and the material is stacked and extruded at this end of the housing 100. The material is pressed to produce a tendency to pass radially outward from the housing 100. The filtrate port and the screen 120 are arranged near the liquid outlet, and the moisture in the material passes through the filter holes of the filter screen and is discharged, and the dry material is further squeezed to discharge the moisture, and the dry material with a lower moisture content is collected at the discharge port 130.

[0029] Furthermore, the screen 120 is annular, the annular axis of the screen 120 is consistent with the axis of the spiral shaft, and the filtrate port is matched with the screen 120, so as to increase the contact area between the material and the screen 120 as much as possible, increase the chance of moisture in the material passing through the filter and out of the shell 100, improve the solid-liquid separation effect, reduce the water content of the solid dry material collected at the discharge port 130, and improve the water removal effect and the quality of the cattle mattress material.

[0030] In one possible implementation, in order to improve the connection stability between the spiral shaft and the drive shaft 410, extend the axial length of the spiral shaft and provide fixed support, the present application provides a connecting portion 312 in the tubular internal cavity of the spiral shaft, and the opposite ends of the connecting portion 312 are respectively close to the axial ends of the shaft rod 310, and the two ends of the connecting portion 312 are respectively connected to the side wall of one axial end of the shaft rod 310 and one end of the drive shaft 410 (at the other axial end of the shaft rod 310) located inside the shaft rod 310.

[0031] Furthermore, the drive shaft 410 can be rotatably inserted into the open end of the spiral rod. The shape of the end of the drive shaft 410 inserted into the spiral shaft can be as follows: Figure 1 , 2 As shown, it can also be cylindrical. One end of the connecting portion 312 is threadedly connected to the drive shaft 410 for easy access and removal. The other end of the connecting portion 312 can be fixedly connected or detachably connected to the side wall of the shaft 310. Preferably, the connecting portion 312 is a threaded rod, and the end of the threaded rod away from the drive shaft 410 passes through the shaft 310 and is threadedly connected to the nut.

[0032] In one possible implementation, the side wall of the shell 100 is provided with an axial hole, the inner wall of the axial hole is provided with a bearing 140, and the drive shaft 410 passes through the inner ring of the bearing 140 into the shell 100. The structure is simple, cheap and easy to obtain, and the manufacturing cost can be reduced.

[0033] In a possible implementation, a sealing seat 150 is provided at one axial end of the bearing 140, and the sealing seat 150 is located in the housing 100. A sealing through-hole is provided through the sealing seat 150, and the sealing through-hole is arranged opposite to the inner ring of the bearing 140. A second sealing ring 151 and an oil seal 152 are provided on the inner wall of the sealing through-hole. The axial directions of the second sealing ring 151 and the oil seal 152 are consistent with the rotational axial direction of the drive shaft 410, and the drive shaft passes through the inner ring of the bearing 140 and the sealing through-hole in sequence and enters the housing 100. Under the premise of ensuring the relative rotation ability of the drive shaft 410 and the housing 100, the second sealing ring 151 and the oil seal 152 are used to increase the sealing performance of the connection between the drive shaft 410 and the housing 100, so as to prevent the solid-liquid mixture from leaking out from the outlet of the housing 100 and the drive shaft 410, causing waste and dirt, or even damaging the drive device 400.

[0034] In a possible implementation, a top pressure cover 500 is provided at one end of the shell 100 (the end with the discharge port 130 and the rear end of the spiral shaft in the transmission direction), and the top pressure cover 500 is located in the shell 100, and the top pressure cover 500 is movably connected to the inner wall of the shell 100. The top pressure cover 500 is located between the spiral shaft and the discharge port 130. Because the top pressure cover 500 is movably connected to the side wall of the shell 100, the degree of activity of the movable connection is appropriately adjusted so that the material sent out by the spiral shaft is blocked at the top pressure cover 500, the material is stacked, and the water is squeezed out under the pressure of the subsequent materials continuously sent here and the top pressure cover 500, until the stacked material is dry enough, dry to a small gap and high hardness, which is enough to push the top pressure cover 500 and the shell 100 to move relative to each other under the push of the spiral shaft, so as to generate a discharge gap and send it to the discharge port 130 for delivery.

[0035] The present application provides a top pressure cover 500 for the discharge, which is opposite to the top pressure force driven by the screw shaft. Under the joint action of the delivery driving force and the opposite top pressure force, the material delivered to the discharge port 130 is further compressed and squeezed, and the moisture is discharged from the filter screen near the discharge end, thereby improving the solid-liquid separation and water removal effect, and obtaining a material with a lower water content to prepare cattle mattress material, thereby reducing the production cost of cattle mattress material and improving the quality of cattle mattress material.

[0036] In a possible implementation, the discharge port 130 is provided with a top-pressing cover 500 , the top-pressing cover 500 matches the discharge port 130 , and the top-pressing cover 500 is movably connected to the side wall of the discharge port 130 .

[0037] In one possible implementation, the middle part of the top pressing cover 500 is rotatably connected to the shell body 100, and a top pressing limit portion is provided on the outer edge of the top pressing cover 500 facing the outside of the shell body 100. The top pressing limit portion can be a weight-increasing weight, or can be detachably connected to the inner wall of the discharge port 130. When top pressing is required to further squeeze out the water, it is connected to the inner wall of the discharge port 130. When the dry material needs to be sent out and collected after the water is squeezed out, it is removed from the inner wall of the discharge port 130. The rotating top pressing cover 500 is pushed open by relying on the thrust of the dry material to form a discharge gap between the top pressing cover 500 and the discharge port 130, and the collected dry material is sent out to prepare cattle mattress material.

[0038] In one possible implementation, the top pressure cover 500 is slidably connected to the inner wall of the shell 100, the sliding direction of the top pressure cover 500 is consistent with the axial direction of the screw shaft, the discharge port 130 is close to one axial end of the screw shaft and is located on the radial side of the screw shaft, and the discharge port 130 is located between the sliding starting point and end point of the top pressure cover 500 (inside the shell 100).

[0039] Before the material is put in, the initial position of the top pressure cover 500 is between the screw shaft and the discharge port 130. The material transmitted by the screw shaft pushes the top pressure cover 500 to slide. The sliding difficulty of the top pressure cover 500 is adjusted to change the size of the top pressure. The sliding process is also a process of bidirectional extrusion and water removal by transmitting the driving force and the top pressure. During the sliding, the top pressure cover 500 passes the discharge port 130. The gap formed by the top pressure cover 500 and the outer edge of the discharge port 130 close to the feeding side of the screw shaft gradually increases from nothing to something, until the top pressure cover 500 slides over the discharge port 130. After the discharge port 130 is located between the screw shaft and the top pressure cover 500, the discharge port 130 is fully opened, and the dry material can be freely delivered.

[0040] A weight 510 can be added to the top pressure cover 500 to increase the sliding friction. In order to reduce unnecessary cleaning work, the weight is set on the side of the top pressure cover 500 away from the spiral shaft and does not directly contact the material. Furthermore, the shell 100 is provided with an operating port at one axial end of the discharge port 130, and the operating port is located at one axial end of the shell 100. There are more than two weights, and the weights are detachably connected to the top pressure cover 500. The weight of the top pressure cover 500 is detached and connected through the operating port, and the size of the top pressure is changed by adjusting the number and specifications of the weights.

[0041] In a possible implementation, the discharge port 130 of the shell 100 is provided with a top pressing cover 500 , the top pressing cover 500 matches the discharge port 130 , and the top pressing cover 500 is detachably connected to the discharge port 130 .

[0042] In a possible implementation, one end of the shaft rod 310 that is away from the drive shaft 410 passes through the housing 100. A spiral blade 320 is provided at one end of the shaft rod 310 that is located inside the housing 100.

[0043] In a possible implementation, the discharge port 130 and the shaft 310 are arranged opposite to each other, and one end of the shaft 310 away from the drive shaft 410 passes through the discharge port 130 to pass through the housing 100, and a discharge gap is provided between the shaft 310 and the side wall of the discharge port 130. Furthermore, one end of the shaft 310 away from the drive shaft 410 passes through the top pressure cover 500 to pass through the housing 100, and the top pressure cover 500 is located at the discharge gap and matches the discharge gap to cover the discharge gap.

[0044] Furthermore, the pressing cover 500 includes more than two pressing parts distributed circumferentially, one end of the pressing part facing the shaft 310 matches the outer wall of the shaft 310, and the other end of the pressing part is movably connected to the side wall of the discharge port 130.

[0045] In a possible implementation, the middle of the top pressing cover 500 is rotatably connected to the side wall of the housing 100, and a detachably connected weight is provided at the outer edge of one end of the top pressing cover 500 to increase the thrust required for the dry material to be delivered from the discharge port 130 and to push open and rotate the top pressing cover 500. There are more than two weights, and the more than two weights are detachably connected to the top pressing cover 500. By increasing or decreasing the number of weights, the total weight of the weights connected to the top pressing cover 500 is adjusted to adjust the thrust required for the dry material to be pushed open, rotate (top pressing cover 500) and delivered (dry material).

[0046] In a possible implementation, one end of the shaft 310 away from the drive shaft 410 is rotatably connected to the side wall of the housing 100 through the bearing 140. One end of the shaft 310 is rotatably supported by the housing 100 through the drive shaft 410, and the other end of the shaft 310 is directly rotatably supported by the side wall of the housing 100. Compared with only one end support, the axial length of the shaft 310 can be extended and stably supported, and the increase in the length of the shaft 310 allows the length of the housing 100 and the screen 120 along the axial direction of the spiral shaft to increase, which can improve the solid-liquid separation effect.

[0047] In one possible implementation, a first annular sealing groove is provided on the side wall of the open end of the spiral shaft, and the open end of the first sealing groove is arranged toward the driving shaft 410. A first sealing ring 311 is provided in the first sealing groove, and one axial end of the first sealing ring 311 protrudes out of the side wall of the first sealing groove and abuts against the side wall of the protrusion 411.

[0048] In a possible implementation, a mounting base 600 is further included, and the housing 100 and the driving device 400 are mounted on the mounting base 600 .

[0049] In a possible implementation, the outer edge of the spiral blade 320 is truncated cone-shaped as a whole, the feed port 110 is close to the axially thicker end of the truncated cone-shaped structure of the spiral blade 320, and the discharge port 130 is close to the axially thinner end of the truncated cone-shaped structure of the spiral blade 320. The spiral shaft drives the material to move from the thicker end of the truncated cone-shaped structure of the spiral blade 320 to the thinner end, and the radial length of the spiral blade 320 gradually decreases along the conveying direction of the spiral shaft blade.

[0050] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A solid-liquid separation device, characterized in that: include: Shell, drain jacket, screw shaft and drive device; The shell side wall is provided with a feed port, a filtrate port and a discharge port, the filtrate port is covered with a filter device, the drain jacket is fixed outside the shell, the filter device is located in the drain jacket, the spiral shaft and the inner wall of the drain jacket are both provided with a preset distance from the filter device, and the drain jacket side wall is provided with a drain port; The spiral shaft is located in the housing, the feed port and the discharge port are arranged along the axial direction of the shaft of the spiral shaft, respectively close to the two ends of the shaft, and the filtrate port is arranged along the radial direction of the spiral blade of the spiral shaft; The driving shaft of the driving device penetrates into the shell and is connected to the screw shaft for driving the screw shaft to rotate in the shell, wherein a radial side wall ring of one end of the driving shaft of the driving device is provided with a protrusion, and the shaft rod is in the shape of a hollow tube with an axial end open, and the inserted end of the driving shaft is inserted through the opening of the shaft rod and fixed in the shaft rod, and the side wall of one axial end of the protrusion abuts against the open end of the screw shaft, and a first sealing ring is provided between the protrusion and the open end of the screw shaft, and the axial directions of the protrusion and the first sealing ring are consistent.

2. The solid-liquid separation equipment according to claim 1, characterized in that: The filtering device is a screen.

3. The solid-liquid separation equipment according to claim 2, characterized in that: The screen is annular in shape, the annular axial direction of the screen is consistent with the axial direction of the spiral shaft, and the filtrate port matches the screen.

4. The solid-liquid separation equipment according to claim 1, characterized in that: A connecting portion is provided in the spiral shaft, and opposite ends of the connecting portion are respectively close to the axial ends of the shaft rod, and the two ends of the connecting portion are respectively connected to the side wall of the shaft rod and one end of the driving shaft located in the shaft rod.

5. The solid-liquid separation equipment according to claim 4, characterized in that: One end of the connecting portion is threadedly connected to the driving shaft.

6. The solid-liquid separation equipment according to claim 1, characterized in that: The side wall of the shell is provided with an axis-through hole, the inner wall of the axis-through hole is provided with a bearing, and the drive shaft passes through the inner ring of the bearing and enters the shell.

7. The solid-liquid separation equipment according to claim 6, characterized in that: A sealing seat is provided at one axial end of the bearing, and the sealing seat is located in the housing. A sealing through-hole is provided through the sealing seat, and the sealing through-hole is arranged opposite to the inner ring of the bearing. A second sealing ring is provided on the inner wall of the sealing through-hole. The drive shaft passes through the inner ring of the bearing and the sealing through-hole in sequence and enters the housing.

8. The solid-liquid separation equipment according to claim 7, characterized in that: The inner wall of the sealing perforation is also ring-shaped with an oil seal.

9. The solid-liquid separation equipment according to claim 1, characterized in that: The discharge port is provided with a top pressure sealing cover, and the top pressure sealing cover is movably connected to the side wall of the discharge port.

10. The solid-liquid separation equipment according to claim 1, characterized in that: The side wall of the open end of the spiral shaft is provided with an annular first sealing groove, the open end of the first sealing groove is arranged toward the driving shaft, a first sealing ring is provided in the first sealing groove, and one axial end of the first sealing ring protrudes out of the side wall of the first sealing groove and abuts against the raised side wall.

Images