Fermentation equipment for degrading and treating straw by using biological enzyme and lignin

Abstract

The invention solves the problem that the fermentation effect is affected due to insufficient exchange of upper and lower layers of straws in a fermentation tank, and relates to the field of straw fermentation, in particular to fermentation equipment for degrading and treating the straws by using biological enzyme and lignin. The pipeline assembly is used for dispersing biological enzyme powder and lignin powder into the straw surface layer in the fermentation tank, a ventilation assembly is installed at the extending end of the pipeline assembly, a stirring assembly is arranged in the fermentation tank and is in transmission connection with the pipeline assembly, and the stirring assembly comprises a stirring shaft and a plurality of stirring blades; the stirring shaft is in transmission connection with a driving motor at the top of the fermentation tank; multiple layers of spiral sheets are arranged on the outer side of the stirring shaft. According to the invention, radial straw flow in the horizontal plane in the fermentation tank is promoted, exchange of upper and lower layers of straw can be promoted, it is ensured that the straw is uniformly stirred in the full range of the fermentation space in the fermentation tank, and finally, the fermentation effect and uniformity of the straw in the fermentation tank are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of straw fermentation, in particular to fermentation equipment for treating straw by utilizing biological enzymes and lignin degradation. Background Art

[0002] In the early, middle and late stages of the fermentation of crops and reed straw, stirring is usually required in the fermentation tank to ensure that the added bio-enzyme powder, lignin powder, water, nutrients, straw, oxygen, etc. are evenly distributed in the fermentation tank.

[0003] However, the conventional stirring structure mainly promotes the radial material flow in the horizontal plane of the fermentation tank, and has a weak ability to circulate materials in the vertical direction, resulting in insufficient exchange between the upper and lower layers of the straw, and then stratification may occur, making the fermentation effects between the upper, middle and lower layers of the straw inconsistent, which affects the overall fermentation effect and causes uneven fermentation. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a fermentation device for treating straw by using biological enzymes and lignin degradation, so as to solve the problem mentioned in the above background technology that the upper and lower layers of straw in the fermentation tank are not exchanged sufficiently, affecting the fermentation effect.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a fermentation device for treating straw by using biological enzymes and lignin to degrade, comprising a fermentation tank, a pipeline assembly is provided in the fermentation tank, and the pipeline assembly is used to disperse and put biological enzyme powder and lignin powder onto the surface of the straw in the fermentation tank, a ventilation assembly is installed at the extended end of the pipeline assembly, and a stirring assembly is provided in the fermentation tank, and the stirring assembly is connected to the pipeline assembly by transmission;

[0006] The stirring assembly includes a stirring shaft and a plurality of stirring blades, the stirring shaft is connected to the driving motor at the top of the fermentation tank, a plurality of spiral blades are arranged on the outside of the stirring shaft, the top of the spiral blades is higher than the height of the top surface of the straw in the fermentation tank, and a plurality of solid rods are connected between the plurality of spiral blades and the stirring shaft;

[0007] The multi-layer spiral sheet is formed by combining an upper layer part, a middle layer part and a lower layer part, and the top end of the upper layer part and the middle layer part are offset from each other in the up-down direction.

[0008] Preferably, the spiral top surface of the multi-layer spiral sheet is concave downward, the lower layer portion is a spiral cone shape that gradually decreases in size, and the upper layer portion is a spiral cone shape that gradually increases in size.

[0009] Preferably, the pipeline assembly comprises an annular tube disposed in the fermenter, the top of the annular tube is connected to an inlet tube passing upward through the fermenter, and the bottom of the annular tube is connected to a plurality of outlet pipe openings arranged in an annular shape.

[0010] Preferably, the annular tube is inclined downward from one side close to the inlet tube to the other side, and the inner diameter of the outlet tube opening increases from bottom to top.

[0011] Preferably, the ventilation assembly comprises a ventilation body embedded in the inner wall of the fermentation tank, and a bend pipe and a contraction pipe are sequentially provided between the side surface of the ventilation body and the highest point of the top surface of the annular tube.

[0012] Preferably, the outer surface of the stirring shaft is sleeved with bevel gear 1, bevel gear 2 is meshed on the top of bevel gear 1, a connecting shaft is inserted into the interior of bevel gear 2, and one end of the connecting shaft passes through the elbow and is connected to the impeller fan in the ventilator body.

[0013] Preferably, the connecting shaft includes a positioning shaft fixedly connected to the impeller fan shaft core in the ventilator body, a sleeve structure is sleeved on the outer surface of the positioning shaft, and the second bevel gear is fixedly sleeved on the surface of the sleeve structure, and a storage electric push rod is installed between the positioning shaft and the sleeve structure.

[0014] Preferably, a closing plate located above the multi-layer spiral blades is installed on the inner wall of the fermenter, the closing plate is integrally connected with the annular tube, and a bearing is provided in the middle of the closing plate, which is sleeved on the surface of the stirring shaft.

[0015] Preferably, a guide rail plate is installed on the top of the closing plate, and brackets are installed on the tops of the guide rail plate and the closing plate for supporting the positioning shaft and the sleeve structure.

[0016] By means of the above technical solution, the present invention provides a fermentation device for treating straw by using biological enzymes and lignin degradation, which has at least the following beneficial effects:

[0017] 1. The present invention controls the stirring shaft to drive a plurality of stirring blades to rotate, thereby promoting the radial flow of straw in the horizontal plane in the fermentation tank, and uses a plurality of solid rods to drive the multi-layer spiral blades to follow the rotation, so that the straw at the bottom of the fermentation tank is spirally pushed upward and circulated along the multi-layer spiral blades, and finally falls into the gap between the multi-layer spiral blades and the stirring shaft, thereby promoting the exchange of upper and lower layers of straw, ensuring that the straw is evenly stirred in the entire fermentation space in the fermentation tank, and finally effectively improving the fermentation effect and uniformity of the straw in the fermentation tank.

[0018] 2. The biological enzyme powder and lignin powder added by the present invention can be dispersed at multiple points on the upper surface of the straw in the fermentation tank, and the stirring blades and the multi-layer spiral blades are driven by the stirring shaft to continuously rotate, so that the straw at the bottom of the fermentation tank is continuously pushed upward, so that the straw at each layer has the opportunity to flip to the upper layer, thereby ensuring the uniformity of the contact with the biological enzyme powder and lignin powder.

[0019] 3. In the present invention, the air supplied to the fermentation tank and the biological enzyme powder are fed through the same channel, which facilitates the dispersed flow of air at the air outlet pipe, and with the continuous rotation of the multi-layer spiral blades, the straw at each level is controlled to circulate and turn over to the upper layer, ensuring that all the straw can be fully and evenly contacted with the oxygen in the air.

[0020] 4. In the present invention, by linking the ventilation body with the stirring shaft and sharing the power source between the two, the energy consumption can be effectively reduced.

[0021] 5. In the present invention, the telescopic sleeve structure is controlled to move horizontally along the surface of the positioning shaft through the propulsion and contraction of the battery-powered electric push rod, so as to adjust the overall length between the two according to needs. When ventilation is not required, the second bevel gear can be separated from the first bevel gear to reduce the meshing rotation time between the two, ultimately reducing wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is a schematic cross-sectional structure diagram of the fermentation tank of the present invention;

[0025] Figure 3 is a schematic structure diagram of the stirring assembly of the present invention;

[0026] Figure 4 is a schematic structure diagram of the multi-layer spiral blades of the present invention;

[0027] Figure 5 is a schematic installation structure diagram of the annular pipe and the closing plate of the present invention;

[0028] Figure 6 is a schematic structure diagram of the pipeline assembly of the present invention;

[0029] Figure 7 is a schematic structure diagram of the ventilation assembly of the present invention;

[0030] Figure 8 is a schematic structure diagram of the connecting shaft rod of the present invention.

[0031] In the figure:

[0032] 1. Fermentation tank;

[0033] 2. Pipeline assembly; 201. Annular pipe; 202. Inlet pipe; 203. Outlet pipe orifice;

[0034] 3. Ventilation component; 301. Ventilation body; 302. Elbow pipe; 303. Shrinkage pipe; 304. Second bevel gear; 305. Connecting shaft rod; 3051. Positioning shaft; 3052. Sleeve structure; 3053. Battery-powered electric push rod; 3054. Bracket;

[0035] 4. Stirring component; 401. Stirring shaft; 402. Stirring blades; 403. Multi-layer spiral blades; 4031. Upper part; 4032. Middle part; 4033. Lower part; 404. Solid rod; 405. First bevel gear;

[0036] 5. Sealing plate. Detailed implementation manner

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0038] Embodiment 1

[0039] Please refer to Figures 1 - 8, in this embodiment, a fermentation device for degrading straw using bioenzymes and lignin is proposed, which can ensure that the straw is in uniform and sufficient contact with the bioenzyme powder, lignin powder and the introduced air, and guarantee the fermentation effect. The fermentation tank 1 included in the fermentation device for crop and reed straw has basically the same structure and function as those in the prior art. The whole fermentation device is divided into three parts from top to bottom. The upper layer and the middle layer are detachably combined through a flange. The bottom layer is in a conical shape with an inner diameter decreasing from large to small, and a discharge port with a control valve is provided at the bottom. A pipeline assembly 2 is arranged in the fermentation tank 1, which is used to disperse and put the bioenzyme powder and lignin powder onto the surface of the straw in the fermentation tank 1. A ventilation assembly 3 is installed at the extended end of the pipeline assembly 2. A stirring assembly 4 is arranged in the fermentation tank 1, and is in transmission connection with the pipeline assembly 2. Therefore, when the driving motor at the top of the fermentation tank 1 is started to drive the stirring assembly 4 to rotate, the ventilation assembly 3 can be driven to operate, generating wind force in the pipeline assembly 2. The generated wind flows dispersedly along the bottom outlet of the pipeline assembly 2 into the space storing the straw in the fermentation tank 1, so that oxygen is more evenly distributed in the upper layer area of the fermentation tank 1, providing sufficient oxygen for the upper layer microorganisms, and effectively improving the fermentation efficiency of the upper layer straw in the fermentation tank 1. And when the wind force generated by the ventilation assembly 3 flows into the pipeline assembly 2, the bioenzyme powder or lignin powder put into the pipeline assembly 2 can be dispersed along the pipeline assembly 2 and finally dispersed and put downward at multiple points, improving the putting uniformity.

[0040] The conventional stirring structure equipped in the fermentation tank 1 mainly promotes the radial material flow in the horizontal plane, resulting in insufficient exchange between the upper and lower layers of the straw and ultimately affecting the overall fermentation effect. In order to effectively increase the circulation ability of the materials in the fermentation tank 1 in the vertical direction. As Figures 1 - 4As shown in the figure, the stirring assembly 4 equipped in this embodiment includes basic structures such as a stirring shaft 401 and several stirring blades 402. In addition, there are multiple layers of spiral fins 403 arranged on the outer side of the stirring shaft 401. A number of solid rods 404 are connected between the multiple layers of spiral fins 403 and the stirring shaft 401. The stirring shaft 401 is in transmission connection with the driving motor at the top of the fermentation tank 1. During actual application, by starting the driving motor at the top of the fermentation tank 1, the stirring shaft 401 is driven to rotate in a set direction at a set frequency, driving several stirring blades 402 to rotate accordingly to achieve basic radial stirring. At the same time, a number of solid rods 404 are used to drive the multiple layers of spiral fins 403 to rotate, so as to push the straw at the bottom layer of the fermentation tank 1 upward along the multiple layers of spiral fins 403 in a spiral manner. And as the continuous pushing progresses, the pushed straw falls downward from the top end of the multiple layers of spiral fins 403. And because the top end of the multiple layers of spiral fins 403 is higher than the top surface of the straw in the fermentation tank 1, the multiple layers of spiral fins 403 are formed by combining an upper part 4031, a middle part 4032, and a lower part 4033. And the top end of the upper part 4031 is misaligned with the middle part 4032 in the up-down direction, and the distance between the middle part 4032 and the stirring shaft 401 is greater than the width of the multiple layers of spiral fins 403. Therefore, the straw falling from the top end of the multiple layers of spiral fins 403 will mainly concentrate in the gap between the multiple layers of spiral fins 403 and the stirring shaft 401. In addition, as the multiple layers of spiral fins 403 continue to rotate, the straw at the bottom layer can be continuously turned upward in a cycle, promoting the exchange of straw between the upper and lower layers, improving the uniformity of fermentation, and cooperating with the radial stirring effect of several stirring blades 402 to ensure that the straw in the fermentation tank 1 is evenly stirred within the entire fermentation space, ultimately effectively improving the fermentation effect and uniformity of the straw in the fermentation tank 1.

[0041] Specifically, the spiral top surface of the multiple layers of spiral fins 403 is concave downward, so that the straw pushed by the multiple layers of spiral fins 403 is concentrated in the concave area on its top surface, reducing the probability of falling along the edge of the multiple layers of spiral fins 403 during the upward spiral pushing process. The lower part 4033 is in the form of a spiral cone that gradually decreases from large to small, which is adapted to the bottom shape of the fermentation tank 1 itself. The upper part 4031 is in the form of a spiral cone that gradually increases from small to large, so that the straw pushed to the top end of the upper part 4031 and then falling downward can fall at the gap between the middle part 4032 and the stirring shaft 401.

[0042] Embodiment 2

[0043] Such as Figure 2 、 Figure 5 and Figure 6As shown in the figure, the pipeline assembly 2 includes an annular pipe 201 arranged inside the fermentation tank 1. The top of the annular pipe 201 is connected to an inlet pipe 202 that passes upward through the fermentation tank 1. The bottom of the annular pipe 201 is connected with a number of outlet nozzles 203 arranged in a ring shape. The annular pipe 201 is inclined downward from the side close to the inlet pipe 202 to the other side, and the inner diameter of the outlet nozzles 203 increases from bottom to top. The number of inlet pipes 202 can be set according to requirements. In this embodiment, the number of inlet pipes 202 is set to two, aiming to be used as the pipelines for putting bio-enzyme powder and lignin powder into the annular pipe 201 during the straw fermentation process. After the required auxiliary powder enters the inside of the annular pipe 201 along the inlet pipe 202, the powder particles slide down along the inclined bottom wall of the annular pipe 201 to the lower part, and during the sliding process, they are discharged through a number of outlet nozzles 203, so as to achieve the purpose of dispersedly putting the bio-enzyme powder and lignin powder.

[0044] Continuing with the above, in this embodiment, although the bio-enzyme powder and lignin powder can be dispersedly put along a number of outlet nozzles 203 during putting, after being put, they basically cover the upper surface of the straw in the fermentation tank 1, and it is difficult for the bottom layer of the fermentation tank 1 to come into contact with them. Therefore, this embodiment needs to be used in combination with the relevant structure of Embodiment 1. During the process of putting the bio-enzyme powder and lignin powder, continuously operate the drive motor on the fermentation tank 1 to control the multi-layer spiral blades 403 to continuously rotate, and continuously push the straw at the bottom layer of the fermentation tank 1 upward, so that the straw at each layer has the opportunity to turn to the upper layer, thereby ensuring the uniformity of contact between the straw and the put bio-enzyme powder and lignin powder.

[0045] Embodiment 3

[0046] As Figure 2 、 Figure 5 and Figures 7 - 8 shown, the ventilation assembly 3 includes a ventilation body 301 embedded in the inner wall of the fermentation tank 1. The ventilation body 301 is mainly composed of basic structures such as a housing, an impeller shaft, an impeller fan, and a magnetic sealing plate. Among them, the housing is inserted into the wall of the fermentation tank 1, and the magnetic sealing plate is attracted to the side of the housing away from the fermentation tank 1, aiming to block the opening space of the housing when the ventilation body 301 is not in use. A bent pipe 302 and a contraction pipe 303 are sequentially arranged between the side surface of the ventilation body 301 and the highest point of the top surface of the annular pipe 201. Operating the ventilation body 301 can accelerate the flow of the surrounding air into the bent pipe 302, and cooperate with the contraction structure of the contraction pipe 303 to make the gas accelerate into the inside of the annular pipe 201, and be discharged dispersedly into the fermentation space in the fermentation tank 1 through a number of outlet nozzles 203 at the bottom of the annular pipe 201. Combining with the relevant structure in Embodiment 1, finally ensure that the supplied air comes into contact with the straw at each layer in the fermentation tank 1, and ensure the sufficiency and uniformity of the contact between the straw and oxygen.

[0047] Continuing from the above, a first bevel gear 405 is sleeved on the outer surface of the stirring shaft 401. Above the first bevel gear 405, there is a meshing second bevel gear 304. A connecting shaft rod 305 is inserted into the second bevel gear 304, and one end of the connecting shaft rod 305 passes through the elbow pipe 302 and is connected to the impeller fan inside the ventilation body 301. When the driving motor at the top of the fermentation tank 1 is used to control the rotation of the stirring shaft 401, the first bevel gear 405 drives the meshing second bevel gear 304 to rotate accordingly, thereby driving the connecting shaft rod 305 to control the impeller fan inside the ventilation body 301 to rotate, so as to draw the surrounding air flow into the elbow pipe 302. During this process, the ventilation body 301 can be linked with the stirring shaft 401, enabling the two systems to share a power source and reducing energy consumption.

[0048] Example 4

[0049] During the straw fermentation process, ventilation is not required throughout the entire stirring stage. In the above Example 3, when the stirring shaft 401 rotates, the first bevel gear 405 will always drive the second bevel gear 304 to rotate accordingly, and the frequent meshing and friction between the two are likely to cause excessive wear. To effectively solve this problem, as Figure 7 and Figure 8 shown, the connecting shaft rod 305 includes a positioning shaft 3051 fixedly connected to the impeller fan shaft core inside the ventilation body 301. A sleeve structure 3052 is sleeved on the outer surface of the positioning shaft 3051, and the second bevel gear 304 is fixedly sleeved on the surface of the sleeve structure 3052. A rechargeable electric push rod 3053 is installed between the positioning shaft 3051 and the sleeve structure 3052. By the inward contraction of the rechargeable electric push rod 3053, the sleeve structure 3052 is controlled to move along the positioning shaft 3051 away from the stirring shaft 401, and finally the second bevel gear 304 can be driven to separate from the first bevel gear 405, thereby reducing the meshing and rotation time between the two and reducing wear.

[0050] Continuing from the above, a guide rail plate is installed on the top of the closing plate 5. Support brackets 3054 are installed on the top of both the guide rail plate and the closing plate 5, which are used to support the positioning shaft 3051 and the sleeve structure 3052. One of the support brackets 3054 is in a sliding connection state with the guide rail plate. Therefore, when the rechargeable electric push rod 3053 is operated to control the sleeve structure 3052 to slide along the surface of the positioning shaft 3051, this support bracket 3054 slides along the inside of the guide rail plate to avoid hindering the normal operation of the rechargeable electric push rod 3053.

[0051] Example 5

[0052] The inner wall of the fermenter 1 is equipped with a closing plate 5 located above the multi-layer spiral fins 403. The closing plate 5 is integrally connected to the annular pipe 201. Using the integral structure formed by the closing plate 5 and the annular pipe 201, the internal space of the fermenter 1 is divided into upper and lower layers. The lower layer is the fermentation space for storing straw, and the upper layer is the protection space, effectively preventing the fermentation substances in the lower space from entering the upper space and accelerating the aging of related structures such as the bevel gear 405. A bearing is provided in the middle of the closing plate 5, which is sleeved on the surface of the stirring shaft 401. As Figure 2 and Figure 5 shown, a feeding port is provided on the closing plate 5 for feeding the straw into the fermentation space in the fermenter 1 after opening the upper layer of the fermenter 1.

[0053] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A fermentation device for treating straw by using biological enzymes and lignin degradation, characterized in that: It includes a fermentation tank (1), in which a pipeline assembly (2) is provided for dispersedly putting bio-enzyme powder and lignin powder onto the surface of straw in the fermentation tank (1). An extension end of the pipeline assembly (2) is equipped with a ventilation assembly (3). A stirring assembly (4) is arranged in the fermentation tank (1), and it is in transmission connection with the pipeline assembly (2). The stirring assembly (4) includes a stirring shaft (401) and a number of stirring blades (402). The stirring shaft (401) is in transmission connection with a driving motor at the top of the fermentation tank (1). A plurality of spiral fins (403) are arranged on the outer side of the stirring shaft (401), and the top of it is higher than the top surface of the straw in the fermentation tank (1). A number of solid rods (404) are connected between the plurality of spiral fins (403) and the stirring shaft (401). The plurality of spiral fins (403) are formed by combining an upper part (4031), a middle part (4032) and a lower part (4033), and the top of the upper part (4031) is mutually offset in the up and down direction from the middle part (4032).

2. The fermentation equipment for degrading and treating straw using bioenzymes and lignin according to claim 1, characterized in that: The spiral top surface of the plurality of spiral fins (403) is in a downward concave shape. The lower part (4033) is in a spiral conical shape that becomes smaller from large, and the upper part (4031) is in a spiral conical shape that becomes larger from small.

3. The fermentation equipment for degrading and treating straw using bioenzymes and lignin according to claim 1, characterized in that: The pipeline assembly (2) includes an annular pipe (201) arranged in the fermentation tank (1). The top of the annular pipe (201) is connected with an inlet pipe (202) that passes through the fermentation tank (1) upward. The bottom of the annular pipe (201) is connected with a number of outlet nozzles (203) arranged in a ring shape.

4. The fermentation equipment for degrading and treating straw using bioenzymes and lignin according to claim 3, characterized in that: The annular pipe (201) is inclined downward from the side close to the inlet pipe (202) to the other side, and the inner diameter of the outlet nozzle (203) increases from bottom to top.

5. The fermentation equipment for degrading and treating straw using bioenzymes and lignin according to claim 1, characterized in that: The ventilation assembly (3) includes a ventilation body (301) embedded in the inner wall of the fermentation tank (1). A bent pipe (302) and a contraction pipe (303) are successively arranged between the side surface of the ventilation body (301) and the highest point of the top surface of the annular pipe (201).

6. The fermentation equipment for degrading and treating straw using bioenzymes and lignin according to claim 1, wherein: A bevel gear one (405) is sleeved on the outer surface of the stirring shaft (401). A bevel gear two (304) is engaged above the bevel gear one (405). A connecting shaft rod (305) is inserted into the bevel gear two (304), and one end of the connecting shaft rod (305) passes through the bent pipe (302) and is connected with an impeller fan in the ventilation body (301).

7. The fermentation equipment for straw degradation treatment using bioenzymes and lignin according to claim 7, characterized in that: The connecting shaft rod (305) includes a positioning shaft (3051) fixedly connected to the impeller fan shaft core in the ventilation body (301). A sleeve structure (3052) is sleeved on the outer surface of the positioning shaft (3051), and the bevel gear two (304) is fixedly sleeved on the surface of the sleeve structure (3052). A rechargeable electric push rod (3053) is installed between the positioning shaft (3051) and the sleeve structure (3052).

8. The fermentation equipment for degrading and treating straw using biological enzymes and lignin according to claim 1, characterized in that: A closing plate (5) is installed on the inner wall of the fermentation tank (1) above the plurality of spiral fins (403). The closing plate (5) is integrally connected with the annular pipe (201). A bearing is arranged in the middle of the closing plate (5), and it sleeves the surface of the stirring shaft (401).

9. The fermentation equipment for degrading and treating straw by using bioenzymes and lignin according to claim 8, characterized in that: A guide rail plate is installed at the top of the closing plate (5). Support brackets (3054) are installed at the tops of the guide rail plate and the closing plate (5), which are used to support the positioning shaft (3051) and the sleeve structure (3052).

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