Double-screw device and feeding system

By dislocating the single-ended bearing support structure, the problem of excessive bearing seat size in the twin screw pump is solved, and the compact design of the screw pump and the improvement of space utilization efficiency is achieved.

CN223234265UActive Publication Date: 2025-08-19SHENZHEN MANST TECH CO LTD
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Patent Information

Application Number
CN202421887864.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-05
Publication Date
2025-08-19
Estimated Expiration
2034-08-05

AI Technical Summary

Technical Problem

In the prior art, the bearing seat size of the twin screw pump is large, resulting in a large area of ​​the screw pump, and the parallel arrangement of the twin screws leads to insufficient strength of the bearing seat.

Method used

Using a single-ended bearing support structure with a dislocation, the bearing positions of the first screw and the second screw have a height difference along the screw axis direction, which is connected to the gear box through the connecting seat, reducing the design complexity and dimensional requirements of the bearing seat.

Benefits of technology

The size of the bearing seat is reduced, the overall volume of the device is reduced, the strength of the bearing seat is improved, and the compact structure of the screw pump is realized, which enhances the space utilization efficiency of the equipment.

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Abstract

The utility model relates to the technical field of feeding systems, in particular to a double-screw device and a feeding system. A double-screw device comprises a machine barrel provided with a containing space; the first screw rod and the second screw rod are meshed with each other, the first screw rod and the second screw rod are respectively provided with a meshing part and a connecting part, and the meshing parts of the first screw rod and the second screw rod are arranged in the accommodating space; the bearing seat is connected with the machine barrel, the bearing seat is provided with a first bearing position and a second bearing position, the first bearing position is provided with a first bearing, the second bearing position is provided with a second bearing, the connecting part of the first screw rod is connected with the bearing seat through the first bearing, and the connecting part of the second screw rod is connected with the bearing seat through the second bearing; a height difference exists between the first bearing position and the second bearing position in the axis direction of the screw. The utility model solves the problems that when the double screws are meshed to crush slurry, the double screws are arranged in parallel, and the double bearings sleeved on the peripheries of the double screws are arranged in parallel, so that the bearing seat is large in size in order to ensure the strength of the bearing seat.
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Description

Technical Field

[0001] The utility model relates to the technical field of feeding systems, in particular to a twin-screw device and a feeding system. Background Art

[0002] In the lithium battery industry, the slurry used in the coating system is usually prepared in a mixing tank. The slurry is transported to the feed storage tank in front of the coating die through a long-distance pipeline, and then delivered to the die through a screw pump. In the existing technology, a horizontal screw pump is generally used to transport the slurry. A twin screw is set in the barrel of the screw pump, and the slurry is transported by the meshing of the twin screws. The twin screws need to be connected to the bearing seat through bearings. Since the twin screws are arranged in parallel, and the twin bearings sleeved on the outer circumference of the twin screws are also arranged in parallel, in order to ensure the strength of the bearing seat, there is a problem of large bearing seat size, which in turn causes the screw pump to occupy a large area. Utility Model Content

[0003] Therefore, the technical problem to be solved by the present invention is that the coating slurry in the prior art is transported by a horizontal screw pump, and the twin screws arranged in the barrel of the screw pump utilize the meshing of the twin screws to transport the slurry. The twin screws need to be connected to the bearing seat through bearings. Since the twin screws are arranged in parallel, and the twin bearings sleeved on the outer periphery of the twin screws are also arranged in parallel, in order to ensure the strength of the bearing seat, there is a defect that the bearing seat is large in size, thereby providing a twin screw device and a feeding system.

[0004] In order to solve the above problems, the utility model provides a twin-screw device, comprising:

[0005] a barrel, wherein the barrel is provided with a receiving space, wherein the receiving space is suitable for flowing the coating slurry;

[0006] a first screw and a second screw meshing with each other, wherein the first screw and the second screw are respectively provided with a meshing portion and a connecting portion, and the meshing portion of the first screw and the meshing portion of the second screw are respectively provided in the accommodating space;

[0007] At least one bearing seat, the bearing seat is connected to the barrel, a first bearing position and a second bearing position are provided in the bearing seat, the first bearing position is provided with a first bearing, the second bearing position is provided with a second bearing, the connecting portion of the first screw is connected to the bearing seat through the first bearing, the connecting portion of the second screw is connected to the bearing seat through the second bearing, and there is a height difference between the first bearing position and the second bearing position along the axial direction of the screw.

[0008] Optionally, it also includes a connecting seat, a frame, a gear box and a power piece, the connecting part of the first screw and the connecting part of the second screw are respectively connected to the power piece through the gear box, the two ends of the connecting seat are respectively fixedly connected to the gear box and the bearing seat, and the connecting end of the connecting seat is fixedly connected to the frame.

[0009] Optionally, a third bearing position and a fourth bearing position are provided in the connecting seat, a third bearing is provided in the third bearing position, and a fourth bearing is provided in the fourth bearing position. The connecting portion of the first screw is connected to the connecting seat through the third bearing, and the connecting portion of the second screw is connected to the connecting seat through the fourth bearing. There is a height difference between the third bearing position and the fourth bearing position along the axial direction of the screw.

[0010] Optionally, a sealing seat is further included, one end of which is fixedly connected to the barrel, and the other end of which is fixedly connected to the bearing seat. The sealing seat is sleeved on the outer periphery of the first screw and the second screw, and the sealing seat prevents the coating slurry in the accommodating space from flowing out.

[0011] Optionally, the barrel is provided with a feed port and a discharge port, the feed port and the discharge port are respectively communicated with the accommodating space, and the feed port and the discharge port are arranged along the axial direction of the barrel.

[0012] Optionally, the inner wall of the accommodating space is a wear-resistant lining, and the wear-resistant lining is in contact with the surface of the shear block of the first screw or the second screw.

[0013] Optionally, a cooling channel is provided in the barrel, and a water inlet and a water outlet are provided on the surface of the barrel. The water inlet and the water outlet are respectively connected to the cooling channel, and the cooling channel is suitable for flowing cooling liquid.

[0014] A feeding system comprises the above-mentioned twin-screw device.

[0015] Optionally, it also includes a first material dividing elbow and a second material dividing elbow, the number of the twin-screw devices is two, the adjacent twin-screw devices are arranged in parallel, the feed ports of the adjacent twin-screw devices are connected through the first material dividing elbow, and the discharge ports of the adjacent twin-screw devices are connected through the second material dividing elbow.

[0016] Optionally, a temperature sensor and a pressure sensor are respectively provided in the second material distribution elbow provided at the discharge port of each of the twin-screw devices.

[0017] The technical solution of this utility model has the following advantages:

[0018] 1. The twin-screw device provided by the utility model includes: a barrel, which is provided with a accommodating space, and the accommodating space is suitable for flowing coating slurry; a first screw and a second screw that mesh with each other, and the first screw and the second screw are respectively provided with a meshing portion and a connecting portion, and the meshing portion of the first screw and the meshing portion of the second screw are respectively arranged in the accommodating space; at least one bearing seat, the bearing seat is connected to the barrel, and a first bearing position and a second bearing position are provided in the bearing seat, the first bearing position is provided with a first bearing, and the second bearing position is provided with a second bearing, the connecting portion of the first screw is connected to the bearing seat through the first bearing, and the connecting portion of the second screw is connected to the bearing seat through the second bearing, and there is a height difference between the first bearing position and the second bearing position along the axial direction of the screw.

[0019] A first bearing is placed in the first bearing position, which is sleeved around the outer periphery of the first screw to support the first screw. A second bearing is placed in the second bearing position, which is sleeved around the outer periphery of the second screw to support the second screw and prevent the first or second screw from shaking. Due to the height difference between the first and second bearing positions, the first and second bearing positions are offset. This offset arrangement eliminates the need to consider the mutual influence between the two bearing positions when designing the bearing seat. Only the strength support provided by the bearing seat to a particular bearing position needs to be considered. The first and second bearing positions are no longer arranged side by side, which does not increase the size of the bearing seat and reduces the overall volume of the screw pump.

[0020] 2. The twin-screw device provided by the present invention also includes a connecting base, a frame, a gearbox, and a power element. The connecting portion of the first screw and the connecting portion of the second screw are respectively connected to the power element via the gearbox. The ends of the connecting base are respectively fixedly connected to the gearbox and the bearing seat, and the connecting end of the connecting base is fixedly connected to the frame. The connecting base secures the twin-screw device to the frame, and the power output from the power element is reduced by the gearbox to drive the first and second screws to rotate.

[0021] 3. The twin-screw device provided by the present invention has a third bearing position and a fourth bearing position provided in the connecting seat, a third bearing being provided in the third bearing position, and a fourth bearing being provided in the fourth bearing position. The connecting portion of the first screw is connected to the connecting seat via the third bearing, and the connecting portion of the second screw is connected to the connecting seat via the fourth bearing. Along the axis of the screws, there is a height difference between the third bearing position and the fourth bearing position to prevent the area between the third and fourth bearing positions from being squeezed when the third and fourth bearing positions are at the same height.

[0022] 4. The twin-screw assembly provided by the present invention further includes a sealing seat, one end of which is fixedly connected to the barrel and the other end of which is fixedly connected to the bearing seat. The sealing seat is disposed around the outer periphery of the first and second screws and is configured to prevent the coating slurry within the containment space from flowing out. The sealing seat provides a seal, preventing the coating slurry within the containment space from flowing out of the barrel.

[0023] 5. The twin-screw device provided by the utility model has a barrel provided with a feed port and a discharge port, which are respectively connected to the accommodating space, and the feed port and the discharge port are arranged along the axial direction of the barrel so that the coating slurry enters from the feed port, is meshed and crushed by the first screw and the second screw, and then flows out from the discharge port.

[0024] 6. The twin-screw device provided by the present invention has an inner wall of the accommodating space with a wear-resistant lining, which is in contact with the surface of the shear block of the first screw or the second screw. The wear-resistant lining plays a wear-resistant role, ensuring that the inner wall of the accommodating space is wear-resistant, thereby extending the service life.

[0025] 7. The twin-screw device provided by the utility model has a cooling channel in the barrel, and a water inlet and a water outlet are provided on the surface of the barrel. The water inlet and the water outlet are respectively connected to the cooling channel. The cooling channel is suitable for flowing coolant, and the coolant reduces the temperature in the barrel.

[0026] 8. The feeding system provided by the present invention has the advantages described in any of the above items because it adopts the twin-screw device described in any of the above items.

[0027] 9. The feeding system provided by the present invention also includes a first and a second feed elbow. There are two twin-screw extruders, and adjacent twin-screw extruders are arranged in parallel. The feed inlets of adjacent twin-screw extruders are connected through the first feed elbow, and the discharge outlets of adjacent twin-screw extruders are connected through the second feed elbow. The design of the first and second feed elbows allows each twin-screw extruder to process the coating slurry, and the parallel design of adjacent twin-screw extruders greatly improves processing efficiency.

[0028] 10. In the feeding system provided by the present invention, a temperature sensor and a pressure sensor are respectively provided in the second material distribution elbow provided at the discharge port of each twin-screw device to sense the temperature and pressure values of the discharge port and adjust the corresponding temperature and pressure at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a schematic diagram of the connection between the twin-screw device, the frame, the temperature sensor, the pressure sensor, and the material distribution elbow provided in the embodiment of the present utility model;

[0031] Figure 2 A schematic cross-sectional view of a twin-screw device provided in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the connection between the first screw, the second screw, the connecting seat and the bearing seat provided in an embodiment of the present utility model;

[0033] Figure 4 A schematic diagram of a barrel provided in an embodiment of the present utility model;

[0034] Figure 5 This is a schematic diagram of the cooling channel of the barrel provided in an embodiment of the present utility model.

[0035] Explanation of the accompanying drawings: 1. First screw; 2. Second screw; 3. Barrel; 301. Wear-resistant lining; 302. Discharge port; 303. Feed port; 304. Water inlet; 305. Water outlet; 306. Cooling channel; 307. Channel cover; 308. Bottom plate; 4. Sealing seat; 5. Bearing seat; 501. First bearing position; 502. Second bearing position; 6. Connecting seat; 601. Third bearing position; 602. Fourth bearing position; 603. Connecting end; 604. Lifting eye screw; 7. Frame; 8. Gear box; 9. Power part; 10. First distribution elbow; 11. Pressure sensor; 12. Temperature sensor; 13. Accommodating space; 14. Second distribution elbow. DETAILED DESCRIPTION

[0036] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0039] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] like Figure 1 A specific embodiment of a twin-screw device shown in Figure 5 comprises: a first screw 1 and a second screw 2 that mesh with each other, a barrel 3, and a seal seat 4. The seal seat 4 comprises a combined structure housing a flood seal and an oil seal. It is important to note that the first screw 1 and the second screw 2 are assembled by splicing, each comprising a core shaft and several shear blocks, which are sleeved around the outer circumference of the core shaft, providing strong dispersing and mixing capabilities.

[0041] like Figure 2 、 Figure 3 As shown, the barrel 3 is provided with a receiving space 13, which is suitable for the coating slurry to flow through. The barrel 3 and the sealing seat 4 are fixedly connected by fasteners, and a portion of the first screw 1 and the second screw 2 are respectively provided in the receiving space 13. The sealing seat 4 is sleeved on the outer periphery of the first screw 1 and the second screw 2 to prevent the coating slurry in the receiving space 13 from flowing out. Figure 4As shown, the bottom of the barrel 3 is provided with a bottom plate 308, and the side wall of the barrel 3 is provided with a feed port 303 and a discharge port 302, wherein the feed port 303 and the discharge port 302 are respectively connected to the accommodating space 13, and the feed port 303 and the discharge port 302 are arranged along the height direction of the barrel 3, and the feed port 303 and the discharge port 302 are respectively suitable for passing the coating slurry. In order to ensure that the inner wall of the accommodating space 13 is wear-resistant, the inner wall of the accommodating space 13 is a wear-resistant lining 301, and the wear-resistant lining 301 is in contact with the surface of the shear block of the first screw 1 or the second screw 2. Specifically, the material of the wear-resistant lining 301 is a metal ceramic material, that is, the wear-resistant effect of the wear-resistant lining is achieved by utilizing the characteristics of high hardness of the metal ceramic material and low hardness of the shear block. As shown Figure 4 、 Figure 5 As shown, a cooling channel 306 is provided in the barrel 3. The cooling channel 306 is arranged in a circumferential manner in the barrel 3. A water inlet 304 and a water outlet 305 are provided on the surface of the barrel 3. The water inlet 304 and the water outlet 305 are respectively connected to the cooling channel 306. The cooling channel 306 is suitable for flowing a coolant. The bottom plate 308 and the sealing seat 4 are respectively provided with a channel cover plate 307. The channel cover plate 307 serves to seal the cooling channel 306. Specifically, the coolant is cooling water.

[0042] like Figure 2 、 Figure 3 As shown, it also includes a bearing seat 5 and a connecting seat 6, wherein the bearing seat 5 is fixedly connected to the connecting seat 6 and the sealing seat 4 respectively through fasteners. Specifically, the fasteners are bolts. Figure 2 、 Figure 3 As shown, the bearing seat 5 is provided with a first bearing position 501 and a second bearing position 502. The first bearing position 501 is provided with a first bearing, and the second bearing position 502 is provided with a second bearing. The first bearing is sleeved on the outer periphery of the first screw 1, and the second bearing is sleeved on the outer periphery of the second screw 2. There is a height difference between the first bearing position 501 and the second bearing position 502 along the axial direction of the screw, that is, the first bearing position 501 and the second bearing position 502 are staggered. Specifically, the first bearing and the second bearing are both single-ended bearings. Figure 2 、 Figure 3 As shown, a third bearing position 601 and a fourth bearing position 602 are provided in the connecting seat 6, a third bearing is provided in the third bearing position 601, and a fourth bearing is provided in the fourth bearing position 602. The third bearing is sleeved on the outer periphery of the first screw 1, and the fourth bearing is sleeved on the outer periphery of the second screw 2. There is a height difference between the third bearing position 601 and the fourth bearing position 602 along the axial direction of the screw, that is, the third bearing position 601 and the fourth bearing position 602 are staggered. Specifically, the third bearing and the fourth bearing are both single-ended bearings. It should be noted that the spacing between the first bearing position 501 and the third bearing position 601 of the first screw 1 is equal to the spacing between the second bearing position 502 and the fourth bearing position 602 of the second screw 2. As shown Figure 1 As shown, in order to drive the first screw 1 and the second screw 2 to rotate, a power piece 9 and a gear box 8 are also included. The power piece 9 is fixedly connected to the connecting seat 6 through the gear box 8. The rotation speed of the power piece 9 is reduced by the gear box 8 to drive the first screw 1 or the second screw 2 to actively rotate, and the actively rotating screw drives the passively rotating screw to rotate. Specifically, the power piece is a servo motor. In another embodiment, the gear box 8 is provided with an input shaft and two output shafts, and the input shaft and the output shaft are both provided with gears. The gears of the input shaft are respectively engaged with the gears of the output shaft. In this embodiment, the power piece 9 is a hollow shaft motor. The input shaft of the gear box 8 is connected to the hollow shaft motor, and the two output shafts are respectively connected to the connecting parts of the first screw 1 and the second screw 2. The hollow shaft motor outputs power to the gear box 8, thereby driving the first screw 1 and the second screw 2 to rotate.

[0043] A feeding system includes two of the above-mentioned twin-screw devices, which are arranged in parallel and further include a frame 7, wherein the connecting end 603 of the connecting seat 6 is fixedly connected to the frame 7, the barrel 3, the bearing seat 5 and the sealing seat 4 are arranged in the frame 7, and the power member 9 is arranged above the connecting end 603. Figure 1 As shown, the system further includes a first branching elbow 10 and a second branching elbow 14. The feed ports 303 of adjacent twin-screw devices are connected via the first branching elbow 10, and the discharge ports 302 of adjacent twin-screw devices are connected via the second branching elbow 14. It should be noted that the height of the feed port 303 of the same twin-screw device is lower than the height of the discharge port 302. To measure temperature and pressure, a temperature sensor 12 and a pressure sensor 11 are respectively installed in the second branching elbow 14 located at the discharge port 302 of each twin-screw device.

[0044] During the specific implementation process, coolant is introduced into each twin-screw device before operation, and the coating slurry enters the accommodating space 13 of the barrel 3 after passing through the first distribution elbow 10. The power part 9 drives the first screw 1 and the second screw 2 to rotate. The coating slurry is fully dispersed and mixed inside the barrel 3, and the large particles of slurry that are agglomerated will be completely broken up. Finally, it flows into the second distribution elbow 14 through the discharge port 302 and flows out from the second distribution elbow 14. The temperature sensor 12 and the pressure sensor 11 can monitor the coating slurry condition in real time, which is convenient for on-site personnel to make timely adjustments.

[0045] The twin-screw device and feeding system provided by the present invention have the following advantages: (1) The entire structure adopts a vertical installation, which greatly reduces the space requirement of the device. The twin-screw devices can be connected in parallel according to the production capacity requirements, and the production capacity can be randomly adjusted; (2) The first screw 1 and the second screw 2 are supported by single-end bearings, and the structure is compact; (3) When a twin-screw device needs to be maintained or the barrel 3 of the same twin-screw device needs to be cleaned, it is only necessary to remove the eye screw 604 of the twin-screw device, thereby realizing the disassembly of a single twin-screw device without disassembling other twin-screw devices; (4) By providing multiple support bearings and staggered installation of the support bearings of the first screw 1 and the second screw 2, it is ensured that the first screw 1 and the second screw 2 can withstand sufficient radial force and axial force; (5) The design of the wear-resistant lining 301 reduces the friction of the first screw 1 and the second screw 2 on the inner wall of the accommodating space 13; (6) The setting of the sealing seat 4 prevents the coating slurry from flowing out of the barrel 3, ensuring that the coating slurry in the barrel 3 is maintained at a certain pressure.

[0046] As an alternative embodiment, the distance between the two support bearings of the first screw 1 and the distance between the two support bearings of the second screw 2 may not be equal.

[0047] As an alternative embodiment, the number of twin-screw devices in the feeding system can also be 1, 3, 4 or even more.

[0048] As an alternative embodiment, the number of bearing seats 5 can be 2, 3 or even more.

[0049] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications derived therefrom remain within the scope of protection of the present invention.

Claims

1. A twin-screw device, characterized in that: include: A barrel (3), wherein the barrel (3) is provided with a receiving space (13), wherein the receiving space (13) is suitable for the coating slurry to flow through; A first screw (1) and a second screw (2) meshing with each other, wherein the first screw (1) and the second screw (2) are respectively provided with a meshing portion and a connecting portion, and the meshing portion of the first screw (1) and the meshing portion of the second screw (2) are respectively provided in the accommodating space (13); At least one bearing seat (5), the bearing seat (5) is connected to the barrel (3), a first bearing position (501) and a second bearing position (502) are provided in the bearing seat (5), the first bearing position (501) is provided with a first bearing, the second bearing position (502) is provided with a second bearing, the connecting portion of the first screw (1) is connected to the bearing seat (5) through the first bearing, and the connecting portion of the second screw (2) is connected to the bearing seat (5) through the second bearing, and there is a height difference between the first bearing position (501) and the second bearing position (502) along the axial direction of the screw.

2. The twin-screw device according to claim 1, characterized in that It also includes a connecting seat (6), a frame (7), a gear box (8) and a power piece (9), wherein the connecting portion of the first screw (1) and the connecting portion of the second screw (2) are respectively connected to the power piece (9) through the gear box (8), the two ends of the connecting seat (6) are respectively fixedly connected to the gear box (8) and the bearing seat (5), and the connecting end (603) of the connecting seat (6) is fixedly connected to the frame (7).

3. The twin-screw device according to claim 2, characterized in that A third bearing position (601) and a fourth bearing position (602) are provided in the connecting seat (6); a third bearing is provided in the third bearing position (601); a fourth bearing is provided in the fourth bearing position (602); the connecting portion of the first screw (1) is connected to the connecting seat (6) via the third bearing; the connecting portion of the second screw (2) is connected to the connecting seat (6) via the fourth bearing; and there is a height difference between the third bearing position (601) and the fourth bearing position (602) along the axial direction of the screw.

4. The twin-screw device according to claim 2, characterized in that The invention also includes a sealing seat (4), one end of which is fixedly connected to the barrel (3), and the other end of which is fixedly connected to the bearing seat (5). The sealing seat (4) is sleeved on the outer periphery of the first screw (1) and the second screw (2), and the sealing seat (4) is used to prevent the coating slurry in the accommodating space (13) from flowing out.

5. The twin-screw device according to claim 1, characterized in that The barrel (3) is provided with a feed port (303) and a discharge port (302), the feed port (303) and the discharge port (302) are respectively connected to the accommodating space (13), and the feed port (303) and the discharge port (302) are arranged along the axial direction of the barrel (3).

6. The twin-screw device according to claim 5, characterized in that The inner wall of the accommodating space (13) is a wear-resistant lining (301), and the wear-resistant lining (301) is in contact with the surface of the shear block of the first screw (1) or the second screw (2).

7. The twin-screw device according to claim 1, characterized in that A cooling channel (306) is provided in the barrel (3), and a water inlet (304) and a water outlet (305) are provided on the surface of the barrel (3). The water inlet (304) and the water outlet (305) are respectively connected to the cooling channel (306), and the cooling channel (306) is suitable for flowing cooling liquid.

8. A feeding system, characterized in that: A twin-screw device comprising any one of claims 1 to 7.

9. The feeding system according to claim 8, characterized in that: It also includes a first material distribution elbow (10) and a second material distribution elbow (14), the number of the twin-screw devices is two, the adjacent twin-screw devices are arranged in parallel, the feed ports (303) of the adjacent twin-screw devices are connected through the first material distribution elbow (10), and the discharge ports (302) of the adjacent twin-screw devices are connected through the second material distribution elbow (14).

10. The feeding system according to claim 9, characterized in that: A temperature sensor (12) and a pressure sensor (11) are respectively provided in the second material distribution elbow (14) provided at the discharge port (302) of each of the twin-screw devices.