Extrusion dewatering device for wet distillers grains

Abstract

The utility model discloses a be used for extruding dewatering device of wet distiller's grains belongs to wet distiller's grains dewatering technical field, including the casing, the casing is provided with extruding channel, the lateral wall of casing is provided with the feed port of communication with extruding channel, the lateral wall of casing still is provided with a plurality of water outlet holes, the movable plate is movably arranged in extruding channel, and the movable plate is suitable in height direction and moves, and the feed plate is rotatably connected with the casing to open or close the feed port, and the drive assembly is provided with input and output, and the input is connected with the movable plate, and the output is connected with the sealing plate, and the movable plate moves to be suitable in drive input motion, and the input motion is to make the output motion, and the output motion is to drive the feed plate rotation. According to the extruding dewatering device designed by the utility model, the filling of wet distiller's grains can be completed without taking out the movable plate completely, the operation process is simplified, and the dewatering efficiency of wet distiller's grains is improved.

Description

Technical Field

[0001] This utility model belongs to the field of wet distiller's grains dehydration technology, specifically relating to a compression dehydration device for wet distiller's grains. Background Technology

[0002] In the field of wet distiller's grains processing, traditional extrusion dehydration devices typically include a fixed housing and a pressure plate for applying pressure. When filling the housing with wet distiller's grains, the pressure plate must be completely removed before the wet distiller's grains material can be refilled, which not only increases the complexity of operation but also reduces work efficiency. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a compression dehydration device for wet distiller's grains.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a dehydration device for wet distiller's grains, comprising: a housing having an extrusion channel open in the height direction, a feed inlet communicating with the extrusion channel on the side wall of the housing, the feed inlet being located near the top of the housing, and a plurality of water outlet holes on the side wall of the housing, each of the plurality of water outlet holes being adapted to communicate the extrusion channel with the outside; a pressure plate movably disposed within the extrusion channel, the pressure plate being adapted to move in the height direction; a feed plate rotatably connected to the housing, the feed plate rotating to selectively open or close the feed inlet; and a drive assembly having an input end and an output end, the input end being connected to the pressure plate, the output end being connected to the sealing plate, the pressure plate moving to drive the input end to move, the input end moving to cause the output end to move, and the output end moving to drive the feed plate to rotate.

[0006] According to the present invention, the extrusion dewatering device for wet distiller's grains has the following advantages: compared with the traditional extrusion device which requires the pressure plate to be completely removed to fill the wet distiller's grains, the extrusion dewatering device of this application can complete the filling of wet distiller's grains without completely removing the pressure plate, which simplifies the operation process, improves the dewatering efficiency of wet distiller's grains, and realizes the automated opening and closing function of the feed inlet through mechanical linkage design, which reduces manual intervention and improves the safety and accuracy of production.

[0007] Furthermore, the pressure plate moves and has a first position, a second position, and a third position. In the first position, the pressure plate is located at the top of the extrusion channel; in the third position, the pressure plate is located at the bottom of the extrusion channel; and in the second position, the pressure plate is located between the top and bottom of the extrusion channel. When the pressure plate moves from the first position to the second position, it is adapted to drive the feed plate to rotate via a drive assembly to close the feed inlet. When the pressure plate moves from the second position to the first position, it is adapted to drive the feed plate to rotate via a drive assembly to open the feed inlet. When the pressure plate moves from the second position to the third position, it is adapted to extrude wet distiller's grains.

[0008] Furthermore, the drive assembly includes: a first rack extending in the height direction and connected to the pressure plate, the first rack being configured as the input end; a first gear rotatably connected to the housing and meshing with the first rack; and a drive rod configured as the output end, one end of the drive rod being rotatably connected to the outer periphery of the first gear, and the other end of the drive rod being rotatably connected to the feed plate.

[0009] Furthermore, the first rack includes an installation area and a blank area above the installation area. The installation area is provided with teeth adapted to mesh with the first gear. When the pressure plate moves from the first position to the second position, the first gear meshes with the teeth. When the pressure plate moves from the second position to the third position, the first gear is directly opposite the blank area.

[0010] Furthermore, the bottom of the feed plate is rotatably connected to the housing via a rotating rod. The drive assembly also includes a torsion spring, which is sleeved on the outer periphery of the rotating rod. One end of the torsion spring is connected to the feed plate, and the other end of the torsion spring is connected to the housing. The torsion spring is adapted to drive the feed plate to rotate to close the feed port.

[0011] Furthermore, it also includes: a sealing plate, which is movably disposed at the bottom of the housing, and the sealing plate is movable in the horizontal direction to open or close the bottom of the extrusion channel.

[0012] Furthermore, it also includes: a support base, on the top of which the housing is fixedly disposed, and the support base is provided with a discharge channel directly opposite the extrusion channel; a reducing ring, at least a portion of which is movably disposed within the extrusion channel, the reducing ring being adapted to move in the height direction, and the sealing plate being adapted to move in the horizontal direction to drive the reducing ring to move in the height direction; wherein the diameter of the extrusion channel is d1, the diameter of the discharge channel is d2, and the inner diameter of the reducing ring is d3, satisfying: d1>d2≥d3.

[0013] Furthermore, the outer diameter of the bottom end of the reducing ring decreases in the direction toward the support base, and the inner diameter of the reducing ring gradually decreases in the direction toward the support base. The minimum inner diameter of the reducing ring is equal to the diameter of the discharge channel.

[0014] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0015] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0016] Fig. 1 This is a schematic diagram showing that the cross-section of the shell of this utility model is circular and the feed plate closes the feed port;

[0017] Fig. 2 This is a schematic diagram showing that the cross-section of the shell of this utility model is square and the feed plate opens the feed port;

[0018] Fig. 3 This is a cross-sectional view showing the fit of the housing, the reduced diameter ring, and the sealing plate of this utility model.

[0019] The following labels are shown in the attached diagram:

[0020] 10. Shell; 20. Pressure plate; 30. Feed plate;

[0021] 41. First rack; 411. Tooth; 42. First gear; 43. Drive rod;

[0022] 50. Sealing plate; 60. Support base; 70. Reduction ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0024] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other instances, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the present invention.

[0025] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0027] Example 1:

[0028] like Figs. 1-3 As shown, this utility model provides a pressing and dehydrating device for wet distiller's grains, including: a housing 10, a pressure plate 20, a feed plate 30, and a drive assembly. The housing 10 is provided with a pressing channel that is open in the height direction. The side wall of the housing 10 is provided with a feed inlet that communicates with the pressing channel. The feed inlet is located near the top of the housing 10. The side wall of the housing 10 is also provided with multiple water outlets, which are adapted to communicate the pressing channel with the outside. The pressure plate 20 is movably disposed in the pressing channel and is adapted to move in the height direction. The feed plate 30 is rotatably connected to the housing 10. The feed plate 30 can rotate to selectively open or close the feed inlet. The drive assembly is provided with an input end and an output end. The input end is connected to the pressure plate 20, and the output end is connected to the sealing plate 50. The pressure plate 20 can move to drive the input end to move. The movement of the input end causes the output end to move. The movement of the output end drives the feed plate 30 to rotate.

[0029] In some embodiments, the housing 10 has an extrusion channel that is open in the height direction. The housing 10 has a feed inlet on its side wall that communicates with the extrusion channel. The feed inlet is located near the top of the housing 10. In addition, the side wall of the housing 10 is also provided with a plurality of water outlet holes for discharging water squeezed out from the wet lees during the extrusion process to the outside. The pressure plate 20 is located inside the extrusion channel. The pressure plate 20 can move in the height direction to apply pressure to the wet lees to achieve dehydration (the pressure plate 20 is adapted to be directly connected to the piston rod of the hydraulic mechanism, that is, the power source of the pressure plate 20 is the hydraulic mechanism, so that the pressure plate 20 can have sufficient pressure to squeeze the wet lees, thereby ensuring the dehydration effect of the wet lees). The feed plate 30 is mounted on the housing 10 by means of rotational connection. The feed plate 30 can selectively open or close the feed inlet by rotation. When the feed inlet is open, wet lees can be filled. When the feed inlet is closed, the dehydration process is carried out.

[0030] The drive assembly includes an input end and an output end. The input end is connected to the pressure plate 20, while the output end is connected to the sealing plate 50 and the feed plate 30. The pressure plate 20 moves to drive the input end to move, which in turn causes the output end to move, ultimately causing the feed plate 30 to rotate, thereby realizing the opening and closing control of the feed port.

[0031] Understandably, when the pressure plate 20 moves up and down within the extrusion channel, it indirectly affects the position of the feed plate 30 through the drive assembly. Specifically, as the position of the pressure plate 20 changes, the input of the drive assembly is triggered, causing the output to operate, thereby controlling the rotation state of the feed plate 30 to open or close the feed inlet. This ensures that the feed inlet is closed when the pressure plate 20 is performing extrusion operations, preventing material leakage or reverse flow. When new material needs to be added, the feed inlet can be opened by adjusting the position of the pressure plate 20.

[0032] According to the present invention, the extrusion dewatering device for wet distiller's grains has the following advantages: compared with the traditional extrusion device which requires the pressure plate 20 to be completely removed to fill the wet distiller's grains, the extrusion dewatering device of this application can complete the filling of wet distiller's grains without completely removing the pressure plate 20, which simplifies the operation process, improves the dewatering efficiency of wet distiller's grains, and realizes the automated opening and closing function of the feed inlet through mechanical linkage design, which reduces manual intervention and improves the safety and accuracy of production.

[0033] Example 2:

[0034] Based on Embodiment 1, in this embodiment, the pressure plate 20 moves and has a first position, a second position, and a third position. In the first position, the pressure plate 20 is located at the top of the extrusion channel; in the third position, the pressure plate 20 is located at the bottom of the extrusion channel; and in the second position, the pressure plate 20 is located between the top and bottom of the extrusion channel. When the pressure plate 20 moves from the first position to the second position, the pressure plate 20 is adapted to drive the feed plate 30 to rotate via the drive assembly to close the feed inlet. When the pressure plate 20 moves from the second position to the first position, the pressure plate 20 is adapted to drive the feed plate 30 to rotate via the drive assembly to open the feed inlet. When the pressure plate 20 moves from the second position to the third position, the pressure plate 20 is adapted to extrude wet distiller's grains.

[0035] In some embodiments, in the first position, the pressure plate 20 is located at the top of the extrusion channel, and the feed inlet is open to allow operators or automated systems to fill the wet lees into the extrusion channel; in the second position, the pressure plate 20 is located in the middle of the extrusion channel, that is, between the top and bottom of the extrusion channel. As the pressure plate 20 moves from the first position to the second position, the pressure plate 20 drives the feed plate 30 to rotate through the drive assembly to gradually close the feed inlet. When the pressure plate 20 is in the second position, the feed inlet is completely closed to prevent the wet lees from escaping from the feed inlet when the pressure plate 20 just begins to extrude the wet lees; in the third position, the pressure plate 20 is located at the bottom of the extrusion channel. As the pressure plate 20 moves from the second position to the third position, the pressure plate 20 applies pressure to the wet lees in the extrusion channel, causing the water in the wet lees to be discharged from the water outlet, thereby achieving the purpose of dehydration.

[0036] Example 3:

[0037] Based on Embodiment 2, the driving assembly in this embodiment includes a first rack 41, a first gear 42, and a driving rod 43. The first rack 41 extends in the height direction and is connected to the pressure plate 20. The first rack 41 is configured as an input end. The first gear 42 is rotatably connected to the housing 10 and meshes with the first rack 41. The driving rod 43 is configured as an output end. One end of the driving rod 43 is rotatably connected to the outer periphery of the first gear 42, and the other end of the driving rod 43 is rotatably connected to the feed plate 30.

[0038] Preferably, the first rack 41 extends in the height direction and is connected to the pressure plate 20. The first rack 41 serves as the input end of the drive assembly. The first rack 41 can move up and down with the pressure plate 20. The first gear 42 is rotatably connected to the housing 10 and meshes with the first rack 41. When the first rack 41 moves up and down due to the movement of the pressure plate 20, the first rack 41 will drive the first gear 42 to rotate. One end of the drive rod 43 is rotatably connected to the outer periphery of the first gear 42, and the other end of the drive rod 43 is rotatably connected to the feed plate 30. The drive rod 43 serves as the output end of the drive assembly. The rotational motion of the first gear 42 will be transmitted to the feed plate 30 through the drive rod 43, causing the feed plate 30 to rotate, thereby realizing the opening and closing operation of the feed port.

[0039] Understandably, when the pressure plate 20 moves from the first position to the second position, the first rack 41 connected to the pressure plate 20 also moves downward, causing the first gear 42 to rotate. The rotation of the first gear 42 is transmitted to the feed plate 30 through the drive rod 43, causing the feed plate 30 to rotate to close the feed inlet, ensuring that the wet lees have been safely sealed in the extrusion channel before extrusion. Similarly, when the pressure plate 20 returns from the second position to the first position, the first rack 41 moves upward, causing the first gear 42 to rotate again, but this time in the opposite direction, causing the drive rod 43 to push the feed plate 30 to open the feed inlet for the next filling of wet lees.

[0040] According to some embodiments of the present invention, the first rack 41 includes an installation area and a blank area located above the installation area. The installation area is provided with teeth 411, which are adapted to mesh with the first gear 42. When the pressure plate 20 moves from the first position to the second position, the first gear 42 meshes with the teeth 411. When the pressure plate 20 moves from the second position to the third position, the first gear 42 is directly opposite the blank area.

[0041] Understandably, when the pressure plate 20 moves from the first position at the top to the second position in the middle, the mounting area of ​​the first rack 41 (with teeth 411) contacts the first gear 42 and causes the first gear 42 to rotate. During this process, the rotation of the first gear 42 is transmitted to the feed plate 30 through the drive rod 43 to drive the feed plate 30 to close the feed port.

[0042] Once the pressure plate 20 reaches the second position and continues to move towards the third position, the blank area of ​​the first rack 41 is opposite to the first gear 42. Since there are no teeth 411 in the blank area, the first gear 42 will not be driven to rotate during this period, and thus will not affect the state of the feed plate 30. At this time, the main task of the pressure plate 20 is to squeeze and dehydrate the wet distiller's grains.

[0043] According to some embodiments of the present invention, the bottom of the feed plate 30 is rotatably connected to the housing 10 via a rotating rod. The driving assembly further includes a torsion spring, which is sleeved on the outer periphery of the rotating rod. One end of the torsion spring is connected to the feed plate 30, and the other end of the torsion spring is connected to the housing 10. The torsion spring is adapted to drive the feed plate 30 to rotate to close the feed port.

[0044] In some embodiments, the presence of the torsion spring means that even without active drive from drive components (such as the first rack 41, the first gear 42, etc.), the feed plate 30 can automatically close the feed port by relying on the restoring force provided by the torsion spring, which increases the safety of the system and prevents material leakage or other safety hazards caused by the feed port not closing due to unexpected circumstances.

[0045] In other embodiments, the drive assembly includes a second rack, a second gear, a third gear, and a third rack. The second rack extends in the height direction and is connected to the pressure plate 20. The second gear and the third gear are coaxially fixed and rotatably connected to the housing 10. The second gear meshes with the second rack. The third rack is movably connected to the housing 10. The third rack is adapted to move relative to the housing 10 in the horizontal direction. The third rack meshes with the third gear, and the end of the third rack away from the second rack is rotatably and movably connected to the feed plate 30.

[0046] Therefore, when the pressure plate 20 moves, it can drive the second rack to move in the height direction. The movement of the second rack in the height direction can drive the second gear to rotate. The rotation of the second gear can drive the coaxial third gear to rotate. The rotation of the third gear can drive the third rack to move in the horizontal direction. The movement of the third rack can drive the feed plate 30 to rotate, thereby opening or closing the feed port.

[0047] In some embodiments, the cross-section of the housing 10 may be circular or square, and there is no limitation herein.

[0048] When the cross-section of the housing 10 is square, the feed plate 30 may include a connecting plate and two side plates. The connecting plate extends in the width direction and is rotatably connected to the housing 10 at its bottom. The two side plates are located on both sides of the housing 10 in the width direction and are respectively adapted to contact the two side walls of the housing 10 in the width direction. The two side plates are rotatably connected to the output end of the drive assembly.

[0049] Therefore, when the feed plate 30 opens the feed port, the feed plate 30 can also serve as a channel for receiving wet lees, thus facilitating the entry of wet lees into the extrusion channel and further improving the filling efficiency of wet lees.

[0050] Example 4:

[0051] Based on Embodiment 1, this embodiment further includes a sealing plate 50, which is movably disposed at the bottom of the housing 10. The sealing plate 50 can move in the horizontal direction to open or close the bottom of the extrusion channel.

[0052] In some embodiments, the opening and closing of the bottom of the extrusion channel is achieved by the horizontal movement of the sealing plate 50. When the sealing plate 50 is in the closed position, it prevents the lees from leaking and ensures that the pressure generated during the extrusion process can be effectively applied to the wet lees; when it is necessary to discharge the dehydrated lees, the sealing plate 50 can be moved open, allowing the lees to be discharged from the bottom of the extrusion channel.

[0053] According to some embodiments of the present invention, the extrusion dewatering device further includes: a support base 60 and a reducing ring 70. A housing 10 is fixedly provided on the top of the support base 60. The support base 60 is provided with a discharge channel directly opposite the extrusion channel. At least a portion of the reducing ring 70 is movably disposed within the extrusion channel. The reducing ring 70 is adapted to move in the height direction. The sealing plate 50 moves in the horizontal direction to drive the reducing ring 70 to move in the height direction. The diameter of the extrusion channel is d1, the diameter of the discharge channel is d2, and the inner diameter of the reducing ring 70 is d3, satisfying: d1>d2≥d3.

[0054] In some embodiments, as the sealing plate 50 moves horizontally and closes the bottom of the extrusion channel, the sealing plate 50 can drive the reducing ring 70 to move vertically away from the support base 60 so that the reducing ring 70 can be completely housed within the extrusion channel. At this time, the reducing ring 70 is supported above the sealing plate 50. Similarly, when the sealing plate 50 moves to a position where its projection in the vertical direction is spaced apart from the reducing ring 70, the reducing ring 70 falls under the influence of gravity and is supported above the support base 60.

[0055] The diameter of the extrusion channel is d1, the diameter of the discharge channel is d2, and the inner diameter of the reducing ring 70 is d3. The condition that d1 > d3 is satisfied, which makes the bottom of the sealing plate 50 have a larger support area, so that the sealing plate 50 can better withstand the pressure from the wet lees and the pressure plate 20, thereby reducing the damage to the sealing plate 50 and extending the service life of the sealing plate 50.

[0056] Of course, d1 > d2 allows the wet lees at the bottom to receive greater pressure during the pressing process of the pressure plate 20, thereby improving the dehydration effect of the wet lees; similarly, d2 ≥ d3 allows the lees to fall smoothly into the discharge channel after passing through the variable diameter ring, preventing the lees from falling out through the gap between the shell 10 and the support base 60 and preventing lees leakage.

[0057] According to some embodiments of the present invention, the outer diameter of the bottom end of the reducing ring 70 decreases in the direction toward the support base 60, the inner diameter of the reducing ring 70 gradually decreases in the direction toward the support base 60, and the minimum inner diameter of the reducing ring 70 is equal to the diameter of the discharge channel.

[0058] In some embodiments, the outer diameter of the sealing plate 50 gradually decreases in the direction away from the support base 60, and the bottom outer diameter of the reducing ring 70 gradually decreases in the direction towards the support base 60. Thus, the sealing plate 50 has a conical or wedge-like structure, and the reducing ring 70 has a conical or wedge-like structure, which makes the fit between the reducing ring 70 and the sealing plate 50 tighter, forming a wedge-like block structure, which facilitates the movement of the reducing ring 70 in the height direction.

[0059] The inner diameter of the narrowing ring 70 gradually decreases in the direction toward the support base 60. Thus, the housing 10 and the narrowing ring 70 cooperate to form a funnel-like shape in the extrusion channel, thereby optimizing the pressure distribution when the lees pass through the narrowing ring 70. This allows the wet lees to be subjected to gradually increasing pressure during the extrusion process, thereby removing moisture more effectively.

[0060] The minimum inner diameter of the reducing ring 70 is equal to the diameter of the discharge channel, ensuring that the lees will not encounter blockages or other problems caused by sudden size changes when entering the discharge channel from the extrusion channel. This ensures a smooth transition of the lees from the extrusion channel to the discharge channel and guarantees the smooth progress of the discharge process.

[0061] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A dehydration device for wet distiller's grains, characterized in that, include: The housing has an extrusion channel that is open in the height direction. The side wall of the housing has a feed inlet that communicates with the extrusion channel. The feed inlet is located near the top of the housing. The side wall of the housing also has a plurality of water outlets, which are adapted to communicate the extrusion channel with the outside. A sealing plate, which is movably disposed at the bottom of the housing, and which moves horizontally to open or close the bottom of the extrusion channel; A pressure plate, which is movably disposed within the extrusion channel, is adapted to move in the height direction; A feed plate, which is rotatably connected to the housing, is rotatable to selectively open or close the feed inlet; A drive assembly is provided with an input end and an output end. The input end is connected to the pressure plate, and the output end is connected to the sealing plate. The pressure plate moves to drive the input end to move, the input end moves to cause the output end to move, and the output end moves to drive the feed plate to rotate.

2. The extrusion dehydration device for wet distiller's grains according to claim 1, characterized in that, The pressure plate moves and has a first position, a second position and a third position. In the first position, the pressure plate is located at the top of the extrusion channel. In the third position, the pressure plate is located at the bottom of the extrusion channel. In the second position, the pressure plate is located between the top and bottom of the extrusion channel. in When the pressure plate moves from the first position to the second position, the pressure plate is adapted to drive the feed plate to rotate via the drive assembly to close the feed port; When the pressure plate moves from the second position to the first position, the pressure plate is adapted to drive the feed plate to rotate via the drive assembly to open the feed port; When the pressure plate moves from the second position to the third position, the pressure plate is adapted to squeeze the wet lees.

3. The extrusion dehydration device for wet distiller's grains according to claim 2, characterized in that, The driving component includes: A first rack extends in the height direction and is connected to the pressure plate, the first rack being configured as the input end; A first gear, which is rotatably connected to the housing and meshes with the first rack; The drive rod is configured as the output end, with one end of the drive rod rotatably connected to the outer periphery of the first gear and the other end of the drive rod rotatably connected to the feed plate.

4. The extrusion dehydration device for wet distiller's grains according to claim 3, characterized in that, The first rack includes a mounting area and a blank area above the mounting area. The mounting area is provided with teeth that are adapted to mesh with the first gear. in When the pressure plate moves from the first position to the second position, the first gear meshes with the teeth; When the pressure plate moves from the second position to the third position, the first gear is directly opposite the blank area.

5. The extrusion dehydration device for wet distiller's grains according to claim 4, characterized in that, The bottom of the feed plate is rotatably connected to the housing via a rotating rod, and the drive assembly further includes: A torsion spring is sleeved on the outer periphery of the rotating rod. One end of the torsion spring is connected to the feed plate, and the other end of the torsion spring is connected to the housing. The torsion spring is adapted to drive the feed plate to rotate to close the feed port.

6. The extrusion dehydration device for wet distiller's grains according to claim 1, characterized in that, Also includes: A support base, on the top of which the housing is fixedly mounted, and the support base is provided with a discharge channel directly opposite the extrusion channel; A reducing ring, at least a portion of which is movably disposed within the extrusion channel, the reducing ring being adapted to move in the height direction, and the sealing plate being movable in the horizontal direction to adapt to driving the reducing ring to move in the height direction; wherein The diameter of the extrusion channel is d1, the diameter of the discharge channel is d2, and the inner diameter of the reducing ring is d3, satisfying: d1>d2≥d3.

7. The extrusion dehydration device for wet distiller's grains according to claim 6, characterized in that, The outer diameter of the bottom end of the reducing ring decreases in the direction toward the support base, and the inner diameter of the reducing ring gradually decreases in the direction toward the support base. The minimum inner diameter of the reducing ring is equal to the diameter of the discharge channel.

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