Discharging device of electrolytic bath

By using the structure of the silo, the first contact ring and the seal in the cutter of the electrolytic cell, a double seal structure is formed, and the material leakage and drifting problems caused by wear of the plug sealing surface are solved, thereby achieving higher sealing and longer equipment life.

CN119980366APending Publication Date: 2025-05-13邹平县汇盛新材料科技有限公司 +1
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Patent Information

Application Number
CN202510051291.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

After the electrolytic cell's cutter is used for a long time, the contact surface between the sealing surface of the plug and the discharge port is easily worn, resulting in intermittent leakage and floating material of the cutter.

Method used

A feeder for an electrolytic cell is designed, and adopts a structure of a silo, a first contact ring and a seal. The first contact ring is arranged around the periphery of the discharge port. The seal ring of the seal is intersected with the first contact ring to form a double seal structure to improve sealing properties.

Benefits of technology

Through the double sealing structure, the sealing of the feeder is significantly improved, the raw material leakage is prevented, the floating phenomenon is reduced, and the service life of the equipment is extended.

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Abstract

The invention discloses a blanking device of an electrolytic bath, and relates to the technical field of electrolytic bath equipment. According to the blanking device, a first contact ring is arranged at a discharge port of a stock bin and surrounds the peripheral side of the discharge port, so that a new discharge port can be formed by the first contact ring, and a sealing ring is arranged on the circumferential side wall of a sealing piece, so that the sealing performance of the sealing piece is improved; when the sealing piece moves to the discharging port relative to the stock bin, the sealing face of the sealing piece can be tightly attached to the inner ring of the first contact ring, so that the sealing piece and the first contact ring can form a first sealing structure, and therefore the sealing piece can seal the discharging port formed by the first contact ring; the sealing ring can be in interference fit with the outer ring of the first contact ring to form a second sealing structure, under the combined action of the first sealing structure and the second sealing structure, the sealing performance between the sealing piece and the discharging port can be improved, raw materials can be prevented from leaking from the discharging port, and the phenomenon of material floating can be reduced.
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Description

Technical Field

[0001] The present application relates to the technical field of electrolytic cell equipment, and in particular to a feeder for an electrolytic cell. Background Art

[0002] Electrolytic cells are essential core equipment in the electrolysis industry, especially in the smelting process of aluminum, magnesium, sodium and other metals. In the electrolysis process, uniform, continuous and stable feeding of raw materials is critical to maintaining electrolysis efficiency, ensuring product quality and extending equipment life.

[0003] In the related art, the feeder of the electrolytic cell usually includes a cavity, with a feed port at the top and a discharge port at the bottom. When feeding, the feeder first uses a plug to close the discharge port, while keeping the feed port open so that the powder can smoothly enter the cavity. After the cavity is filled with powder, the plug will turn to close the feed port and open the discharge port, so that the powder in the cavity can smoothly enter the electrolytic cell.

[0004] However, with the long-term use of the feeder, the sealing surface of the plug and the contact surface of the discharge port will inevitably wear out to varying degrees after a long period of contact and friction. This wear will cause the sealing surface of the plug and the contact surface of the discharge port to be unable to completely fit and seal, which will cause the feeder to leak material intermittently, float material, etc., which not only affects the stability of the electrolysis process, but may also have an adverse effect on product quality and equipment life. Summary of the invention

[0005] The embodiment of the present application provides a feeder for an electrolytic cell, which can solve the problem that after the feeder is used for a long time, the sealing surface of the plug and the contact surface of the discharge port may be worn to varying degrees, resulting in intermittent leakage and floating of the feeder.

[0006] On the one hand, an embodiment of the present application provides a feeder for an electrolytic cell, which includes a silo, a first contact ring and a sealing member, wherein the silo is provided with a discharge port, the first contact ring is arranged at the discharge port, and the first contact ring is arranged around the discharge port, the sealing member is movably arranged on the silo, and a sealing ring is provided on the circumferential side wall of the sealing member, the size of the sealing ring is larger than the size of the first contact ring, the sealing member is used to close the discharge port, and the sealing ring is used to have an interference fit with the first contact ring.

[0007] Optionally, in some embodiments, the first contact ring and the sealing ring are both circular steel rings.

[0008] Optionally, in some embodiments, the first contact ring is detachably connected to the silo.

[0009] Optionally, in some embodiments, an outer surface of the first contact ring and / or an outer surface of the sealing ring is provided with a wear-resistant coating.

[0010] Optionally, in some embodiments, a feed port is provided at the top of the silo, and a discharge port is provided at the bottom of the silo, and the sealing member includes a movable rod, which is inserted in the silo and can reciprocate up and down relative to the silo, and a first plug and a second plug are respectively provided at opposite ends of the movable rod, and the sealing ring is provided on the circumferential side wall of the second plug; when the movable rod drives the first plug to close the feed port, the second plug opens the discharge port, or, when the movable rod drives the second plug to close the discharge port and the sealing ring is interference fit with the first contact ring, the first plug opens the feed port.

[0011] Optionally, in some embodiments, along the direction from the feed port toward the discharge port, the distance between the first plug and the second plug is greater than the size of the silo.

[0012] Optionally, in some embodiments, the feeder further includes a support frame and a driving structure, the support frame is disposed on the top of the silo, the driven structure is installed on the support frame, and the driven structure is connected to the movable rod or the first plug to drive the movable rod to reciprocate up and down relative to the silo.

[0013] Optionally, in some embodiments, the support frame includes a first support plate, a second support plate and a plurality of support rods, the first support plate is connected to the top of the silo, and a first avoidance hole is provided on the first support plate, and the feed port is exposed from the first avoidance hole; the second support plate is connected to the driving structure, and a second avoidance hole is provided on the second support plate, and the driving end of the driving structure extends out from the second avoidance hole and is connected to the movable rod or the first plug; the plurality of support rods are arranged between the first support plate and the second support plate, and one end of the plurality of support rods is connected to the first support plate, and one end of the plurality of support rods is respectively arranged around the first avoidance hole, and the other end of the plurality of support rods is connected to the second support plate, and the other end of the plurality of support rods is respectively arranged around the second avoidance hole.

[0014] Optionally, in some embodiments, the driving structure includes a cylinder and a connecting rod, the cylinder is mounted on the support frame, one end of the connecting rod is connected to the telescopic end of the cylinder, and the other end of the connecting rod is connected to the movable rod or the first plug.

[0015] Optionally, in some embodiments, the feeder further includes a second contact ring, the second contact ring is disposed at the feed port of the silo, and the second contact ring is disposed around the feed port, and the sealing member is used for interference fit with the second contact ring.

[0016] The technical effect of a feeder of an electrolytic cell provided in an embodiment of the present application is as follows: a first contact ring is provided at the discharge port of a silo, and the first contact ring is provided around the discharge port so that the first contact ring is connected to the discharge port, thereby the first contact ring can form a new discharge port, and a sealing ring is provided on the circumferential side wall of the seal, and the size of the sealing ring is larger than the size of the first contact ring. When the seal moves to the discharge port relative to the silo, the sealing surface of the seal can fit tightly with the inner ring of the first contact ring, so that the seal and the first contact ring can form a first sealing structure, thereby the seal can close the discharge port formed by the first contact ring. At the same time, the sealing ring can be interference fit with the outer ring of the first contact ring to form a second sealing structure. Under the joint action of the first sealing structure and the second sealing structure, the sealing between the seal and the discharge port can be improved, which can not only prevent the raw material from leaking from the discharge port, but also reduce the occurrence of floating material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of a three-dimensional structure of a feeder of an electrolytic cell provided by an embodiment of the present invention from a first viewing angle;

[0019] Figure 2 A schematic diagram of a stereoscopic structure of a feeder of an electrolytic cell provided by an embodiment of the present invention from a second viewing angle;

[0020] Figure 3 A schematic cross-sectional structure diagram of a feeder for an electrolytic cell provided in an embodiment of the present invention;

[0021] Figure 4 A schematic structural diagram of a sealing member provided in an embodiment of the present invention.

[0022] Description of reference numerals:

[0023] 100. Feeder; 1. Material bin; 11. Feed inlet; 12. Discharge outlet; 2. First contact ring; 3. Sealing element; 31. Sealing ring; 32. Movable rod; 33. First plug; 34. Second plug; 4. Support frame; 41. First support plate; 410. First avoidance hole; 42. Second support plate; 420. Second avoidance hole; 43. Support rod; 5. Driving structure; 51. Cylinder; 52. Connecting rod; 6. Second contact ring. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] It should be noted that the same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0026] At the same time, it should be noted that in the coordinate system XYZ provided in this article, the positive direction of the X axis represents the right, the negative direction of the X axis represents the left, the positive direction of the Y axis represents the front, the negative direction of the Y axis represents the back, the positive direction of the Z axis represents the bottom, and the negative direction of the Z axis represents the top.

[0027] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] See also Figures 1 to 3 , a feeder 100 for an electrolytic cell provided in an embodiment of the present application, comprising a feed bin 1, a first contact ring 2 and a seal 3.

[0031] Specifically, the silo 1 may be a cylindrical structure for storing raw materials, and a discharge port 12 is provided on the silo 1 so that the raw materials can enter the electrolytic cell through the discharge port 12 to ensure that the electrolytic cell can operate efficiently.

[0032] The shape of the first contact ring 2 can be the same as the shape of the discharge port 12. Preferably, the first contact ring 2 is a circular ring, and the shape of the discharge port 12 is a circular port. The first contact ring 2 can be arranged at the discharge port 12, and the first contact ring 2 can be arranged around the discharge port 12. It can also be said that the discharge port 12 is located in the inner ring of the first contact ring 2, or the size of the discharge port 12 is the same as the size of the inner ring of the first contact ring 2, so that the first contact ring 2 is connected to the discharge port 12, so that the first contact ring 2 can form a new discharge port 12.

[0033] Preferably, the central axis of the first contact ring 2 is colinear with the central axis of the discharge port 12, so that the raw materials in the silo 1 can smoothly enter the electrolytic cell from the discharge port 12 formed by the first contact ring 2.

[0034] The seal 3 can be movably arranged on the silo 1. In the present embodiment, the seal 3 is movably inserted into the silo 1 through the discharge port 12, and a part of the seal 3 is located inside the silo 1, and another part of the seal 3 is located outside the silo 1. A sealing ring 31 is provided on the part of the seal 3 located outside the silo 1, and the first contact ring 2 can be arranged on the outer surface of the silo 1, and the size of the sealing ring 31 can be larger than the size of the first contact ring 2.

[0035] When the seal 3 moves to the discharge port 12 relative to the silo 1, the sealing surface of the seal 3 can fit tightly with the inner ring of the first contact ring 2, so that the seal 3 and the first contact ring 2 can form a first sealing structure, so that the seal 3 can close the discharge port 12 formed by the first contact ring 2. At the same time, the sealing ring 31 can be interference fit with the outer ring of the first contact ring 2 to form a second sealing structure. Under the joint action of the first sealing structure and the second sealing structure, the sealing between the seal 3 and the discharge port 12 can be improved, which can not only prevent the raw material from leaking from the discharge port 12, but also reduce the occurrence of floating material.

[0036] See also Figure 1 and Figure 4 In some embodiments, the first contact ring 2 and the sealing ring 31 can be made of the same material, and both the first contact ring 2 and the sealing ring 31 are circular steel rings, which can make the first contact ring 2 and the sealing ring 31 have good durability and reliability, and make the first contact ring 2 and the seal 3 more wear-resistant.

[0037] See also Figure 1 and Figure 4 In some embodiments, the first contact ring 2 can be detachably connected to the silo 1. To be more specific, the first contact ring 2 can be threaded or clamped on the silo 1, so that when the first contact ring 2 is worn out due to long-term use of the feeder 100, a new first contact ring 2 can be replaced to prevent the feeder 100 from leaking from the discharge port 12.

[0038] In some embodiments, a wear-resistant coating may be provided on the outer surface of the first contact ring 2 and the outer surface of the sealing ring 31 to improve the wear resistance of the first contact ring 2 and the sealing ring 31 , thereby increasing the service life of the first contact ring 2 .

[0039] In some other embodiments, the outer surface of the first contact ring 2 or the outer surface of the sealing ring 31 may be provided with a wear-resistant coating, so as to reduce the probability of wear between the first contact ring 2 and the sealing ring 31 .

[0040] See also Figures 1 to 3 In some embodiments, a feed port 11 may be provided at the top of the silo 1, and a discharge port 12 may be provided at the bottom of the silo 1, so that raw materials can enter from the top of the silo 1 and discharge from the bottom of the silo 1, and both feeding and discharging are very smooth.

[0041] Combination Figure 4 As shown, the seal 3 may include a movable rod 32, which is a long rod-shaped structure, and the movable rod 32 can be inserted on the silo 1, so that the movable rod 32 can reciprocate up and down relative to the silo 1. Specifically, the opposite ends of the movable rod 32 are respectively arranged toward the feed port 11 and the discharge port 12, and the opposite ends of the movable rod 32 are respectively provided with a first plug 33 and a second plug 34, so that the first plug 33 can be used to close the feed port 11, and the second plug 34 can be used to close the discharge port 12, wherein the first plug 33 can be located inside or outside the silo 1, and similarly, the second plug 34 can also be located inside or outside the silo 1.

[0042] The shapes of the first plug 33 and the second plug 34 can both be cone-like structures, and the side walls of the first plug 33 and the second plug 34 are sealing surfaces, wherein a sealing ring 31 is provided on the sealing surface of the second plug 34, and the sealing ring 31 is arranged around the circumferential side wall of the second plug 34, and the inner contour shape and size of the sealing ring 31 can be adapted to the outer contour shape and size of the first contact ring 2, so that the sealing ring 31 can be interference fit with the first contact ring 2.

[0043] When the movable rod 32 drives the first plug 33 to move to contact with the feed port 11, the first plug 33 is inserted into the feed port 11, and the circumferential side wall of the first plug 33 can fit tightly with the contact surface of the feed port 11, so that the first plug 33 closes the feed port 11. At the same time, the movable rod 32 can drive the second plug 34 away from the discharge port 12, so that the second plug 34 opens the discharge port 12, so that the raw material can enter the electrolytic cell from the discharge port 12 of the silo 1.

[0044] When the movable rod 32 drives the second plug 34 to move to contact the discharge port 12, the second plug 34 can be inserted in the discharge port 12, and the circumferential side wall of the second plug 34 can fit tightly with the inner ring of the first contact ring 2, and the sealing ring 31 can have an interference fit with the outer ring of the first contact ring 2, so that the second plug 34 can close the discharge port 12, and at the same time the movable rod 32 can drive the first plug 33 away from the feed port 11, so that the first plug 33 can open the feed port 11, thereby keeping away from the feed port 11 and entering the silo 1, and storing it in the silo 1, thereby realizing quantitative unloading.

[0045] See also Figure 3 In some embodiments, along the direction from the feed port 11 to the discharge port 12, that is, Figure 1 In the Z-axis direction, the distance between the first plug 33 and the second plug 34 is greater than the size of the silo 1, or it can be said that the length of the portion of the movable rod 32 between the first plug 33 and the second plug 34 is longer than the length of the silo 1, so that when the first plug 33 contacts the feed port 11, there is still a distance between the second plug 34 and the discharge port 12, and when the second plug 34 contacts the discharge port 12, there is still a distance between the first plug 33 and the feed port 11, that is, when the first plug 33 closes the feed port 11, the second plug 34 opens the discharge port 12, and when the second plug 34 closes the discharge port 12, the first plug 33 opens the feed port 11, thereby realizing quantitative unloading.

[0046] See also Figures 1 to 3In some embodiments, the feeder 100 may further include a support frame 4 and a driving structure 5. The support frame 4 may be arranged on the top of the silo 1, and the driving structure 5 may be fixed on the support frame 4, so that the driving structure 5 can be fixed on the top of the silo 1, thereby facilitating the driving connection between the driving structure 5 and the movable rod 32 or the first plug 33, so that the driving structure 5 can easily drive the movable rod 32 to reciprocate up and down relative to the silo 1. By setting the support frame 4 and the driving structure 5, the movable rod 32 can be easily driven to reciprocate up and down.

[0047] See also Figures 1 to 3 In some embodiments, the support frame 4 may include a first support plate 41 , a second support plate 42 and a plurality of support rods 43 .

[0048] Specifically, the first support plate 41 can be connected to the top of the silo 1, and a first avoidance hole 410 can be provided on the first support plate 41. The size of the first avoidance hole 410 is larger than the size of the feed port 11, so that the feed port 11 can be completely exposed from the first avoidance hole 410, thereby facilitating the raw materials to enter the silo 1.

[0049] The shape and size of the second support plate 42 can be the same as those of the first support plate 41, and the second support plate 42 can be connected to the driving structure 5. To be more clear, the second support plate 42 and the first support plate 41 can be spaced apart in the direction from the feed port 11 toward the discharge port 12, and the second support plate 42 and the first support plate 41 are arranged parallel to each other. The driving structure 5 can be fixed on the side of the second support plate 42 facing away from the first support plate 41, and a second avoidance hole 420 can be provided on the second support plate 42, so that the driving end of the driving structure 5 can extend from the second avoidance hole 420, and the driving end can be connected to the movable rod 32 or the first plug 33.

[0050] Multiple support rods 43 can be arranged between the first support plate 41 and the second support plate 42, and one end of the multiple support rods 43 can be connected to the first support plate 41, and one end of the multiple support rods 43 can be respectively arranged around the first avoidance hole 410, so that the multiple support rods 43 will not interfere with other components located above the discharge port 12, for example, the multiple support rods 43 will not interfere with the movable rod 32 or the first plug 33, so that the seal 3 can be easily installed on the silo 1.

[0051] Similarly, the other ends of the multiple support rods 43 can be connected to the second support plate 42, and the other ends of the multiple support rods 43 can be respectively arranged around the second avoidance hole 420, so that the multiple support rods 43 will not interfere with the components located at the second avoidance hole 420, for example, the multiple support rods 43 will not interfere with the driving end of the driving structure 5, thereby facilitating the installation of the driving structure 5 on the second support plate 42.

[0052] See also Figures 1 to 3 In some embodiments, the driving structure 5 may further include a cylinder 51 and a connecting rod 52. The cylinder 51 may be installed on the support frame 4, and the telescopic end of the cylinder 51 may be set toward the silo 1. One end of the connecting rod 52 may be connected to the telescopic end of the cylinder 51, and the other end of the connecting rod 52 may be connected to the movable rod 32 or the first plug 33, so that the cylinder 51 may be driven and connected to the movable rod 32 through the connecting rod 52, so that the cylinder 51 may drive the movable rod 32 to reciprocate in the up and down directions.

[0053] See also Figure 2 and Figure 3 In some embodiments, the feeder 100 may further include a second contact ring 6, and the second contact ring 6 may be arranged at the feed port 11 of the silo 1. Similarly, the second contact ring 6 may be arranged around the feed port 11, so that the second contact ring 6 may form a new feed port 11, so that the first plug 33 may contact the second contact ring 6, and a sealing ring 31 may also be provided on the circumferential side wall of the first plug 33. The second contact ring 6 may be interference fit with the sealing ring 31 on the first plug 33, so that the feed port 11 is closed, thereby improving the sealing of the feed port 11.

[0054] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A feeder for an electrolytic cell, characterized in that: include: A silo (1), wherein the silo (1) is provided with a discharge port (12); A first contact ring (2), the first contact ring (2) being arranged at the discharge port (12), and the first contact ring (2) being arranged around the discharge port (12), so that the first contact ring (2) forms the discharge port (12); A sealing member (3), wherein the sealing member (3) is movably arranged on the silo (1), and a sealing ring (31) is arranged on the circumferential side wall of the sealing member (3), the size of the sealing ring (31) is larger than the size of the first contact ring (2), the sealing member (3) is used to close the discharge port (12) formed by the first contact ring (2), and the sealing ring (31) is used to have an interference fit with the first contact ring (2).

2. The feeder according to claim 1, characterized in that: The first contact ring (2) and the sealing ring (31) are both circular steel rings.

3. The feeder according to claim 1, characterized in that: The first contact ring (2) is detachably connected to the silo (1).

4. The feeder according to claim 1, characterized in that: The outer surface of the first contact ring (2) and / or the outer surface of the sealing ring (31) is provided with a wear-resistant coating.

5. The feeder according to claim 1, characterized in that: The top of the silo (1) is provided with a feed inlet (11), the bottom of the silo (1) is provided with a discharge outlet (12), and the sealing member (3) comprises: a movable rod (32), the movable rod (32) being inserted into the silo (1) and being capable of reciprocating up and down relative to the silo (1), the movable rod (32) being provided with a first plug (33) and a second plug (34) at opposite ends thereof, and the sealing ring (31) being provided on a circumferential side wall of the second plug (34); When the movable rod (32) drives the first plug (33) to close the feed port (11), the second plug (34) opens the discharge port (12), or, When the movable rod (32) drives the second plug (34) to close the discharge port (12) and the sealing ring (31) and the first contact ring (2) are interference fit, the first plug (33) opens the feed port (11).

6. The feeder according to claim 5, characterized in that: Along the direction from the feed port (11) toward the discharge port (12), the distance between the first plug (33) and the second plug (34) is greater than the size of the silo (1).

7. The feeder according to claim 5, characterized in that: The feeder also includes: A support frame (4), the support frame (4) being arranged on the top of the silo (1); A driving structure (5), wherein the driven structure (5) is mounted on the support frame (4), and the driven structure (5) is drivingly connected to the movable rod (32) or the first plug (33) to drive the movable rod (32) to reciprocate up and down relative to the silo (1).

8. The feeder according to claim 7, characterized in that: The support frame (4) comprises: a first support plate (41), the first support plate (41) being connected to the top of the silo (1), and the first support plate (41) being provided with a first avoidance hole (410), and the feed port (11) being exposed from the first avoidance hole (410); a second support plate (42), the second support plate (42) being connected to the driving structure (5), and the second support plate (42) being provided with a second avoidance hole (420), the driving end of the driving structure (5) extending from the second avoidance hole (420) and connected to the movable rod (32) or the first plug (33); A plurality of support rods (43), wherein the plurality of support rods (43) are all arranged between the first support plate (41) and the second support plate (42), and one end of the plurality of support rods (43) is connected to the first support plate (41), and one end of the plurality of support rods (43) is respectively arranged around the first avoidance hole (410), and the other end of the plurality of support rods (43) is connected to the second support plate (42), and the other end of the plurality of support rods (43) is respectively arranged around the second avoidance hole (420).

9. The feeder according to claim 7, characterized in that: The driving structure (5) comprises: A cylinder (51), wherein the cylinder (51) is mounted on the support frame (4); A connecting rod (52), one end of the connecting rod (52) is connected to the telescopic end of the cylinder (51), and the other end of the connecting rod (52) is connected to the movable rod (32) or the first plug (33).

10. The feeder according to claim 1, characterized in that: The feeder further comprises a second contact ring (6), the second contact ring (6) being arranged at the feed port (11) of the silo (1), and the second contact ring (6) being arranged around the feed port (11), and the sealing member (3) being used for interference fit with the second contact ring (6).