Garbage fermentation equipment for biomass hydrogen production

Abstract

The invention relates to the technical field of fermentation hydrogen production, in particular to garbage fermentation equipment for biomass hydrogen production, which comprises a base and a fermentation tank, the fermentation tank is mounted above the base through a vertical column vertically arranged on the base, and an inner tank body with an open top and a closed bottom is rotatably mounted in the base in a penetrating manner; holes are evenly distributed in the portion, located in the fermentation tank, of the inner tank body, an inner pipe body with the top open and the bottom closed is fixedly installed in the base through a supporting arm, and the inner pipe body is coaxially inserted into the inner tank body and rotationally connected with the inner tank body. Fermentation materials entering the inner pipe body are conveyed upwards in a spiral mode through the auger conveying rod, under the blocking effect of the top cover on the top of the inner tank body, the fermentation materials fall back into the storage cavity again, overturning of the fermentation materials is achieved, the fermentation materials which are extruded and layered for a long time have good bulkiness, it is guaranteed that the fermentation materials are evenly distributed in the storage cavity, and the fermentation efficiency is improved. Therefore, the fermentation quality and the fermentation yield are improved.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen production by fermentation, and in particular to garbage fermentation equipment for hydrogen production by biomass. Background Art

[0002] Garbage fermentation to produce hydrogen is the process of using organic waste, such as kitchen waste and agricultural waste, to undergo anaerobic fermentation to produce combustible gas hydrogen. Microorganisms decompose the waste to release gases such as methane and hydrogen. This technology can not only effectively reduce the amount of waste processed, but also help recycle energy, generate clean energy, and reduce greenhouse gas emissions, thereby achieving the goal of converting waste into resources.

[0003] Reference is made to the Chinese patent with authorization announcement number CN218026060U, which discloses a bio-fermentation hydrogen production device. This patent solution can effectively solve the problem that the existing bio-fermentation hydrogen production devices on the market are unable to stir and mix the internal fermented products and promote uniform mixing. While realizing the stirring and mixing function, it can also realize automatic lifting of the fermented products during cleaning to facilitate replacement and maintenance.

[0004] Although the above-mentioned patent scheme can replace the fermented material, however, when the fermented material is placed in the raw material storage barrel for fermentation, due to the effect of gravity, the fermented material in the raw material storage barrel will be compressed and stratified, resulting in poor fluffiness of the fermented material, affecting the flow of the fermented material, and further causing the fermented material to be unevenly distributed in the fermentation tank body, resulting in large differences in fermentation conditions in different areas of the fermentation tank body and low consistency, ultimately affecting the fermentation effect and yield of organic waste. Summary of the invention

[0005] The purpose of the present invention is to provide a garbage fermentation device for biomass hydrogen production with good fermentation effect and high fermentation yield, so as to solve the technical problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions.

[0007] A garbage fermentation device for biomass hydrogen production comprises a base and a fermentation tank, wherein the fermentation tank is installed above the base by means of columns vertically arranged on the base, an inner tank body with an open top and a closed bottom is rotatably installed in the base, a portion of the inner tank body located in the fermentation tank is evenly provided with holes, an inner tube body with an open top and a closed bottom is fixedly installed in the base by means of a support arm, the inner tube body is coaxially inserted in the inner tank body and rotatably connected to the inner tank body, a storage cavity for storing fermented materials is formed between the inner wall of the inner tank body and the outer wall of the inner tube body, feed ports for the fermented materials in the storage cavity to pass through and enter the inner tube body are evenly provided on the peripheral wall of the inner tube body near its bottom, the top of the inner tube body is slightly lower than the top of the inner tank body, an auger conveying rod for spirally conveying the fermented materials in the inner tube body upwards is coaxially rotatably installed in the inner tube body.

[0008] The fermented material entering the inner tube body is spirally transported upward by the auger conveying rod. Under the blocking effect of the top cover of the inner tank body, the fermented material falls back into the storage chamber, thereby turning the fermented material over, making the fermented material that has been squeezed and layered for a long time have better fluffiness, ensuring that the fermented material is evenly distributed in the storage chamber, thereby improving the fermentation quality and fermentation yield.

[0009] Preferably, an annular plate is movably arranged in the storage chamber, a second driving mechanism for driving the annular plate for lifting and lowering adjustment is provided on the inner tank body, spiral push plates are arranged in an annular array on the outer wall of the inner tank body, and a first driving mechanism is provided on the base. The first driving mechanism is used to drive the auger conveying rod to rotate alone or drive the inner tank body to rotate alone.

[0010] Preferably, the top ends of the inner tank body and the inner tube body both extend to above the fermentation tank.

[0011] Preferably, a feeding port and an exhaust pipe are provided at the top of the fermentation tank, a fermentation residue discharge port is provided at the bottom of the fermentation tank, a liquid discharge port is provided at the side of the fermentation tank near its bottom end, and a top cover is provided at the feeding port and the top of the inner tank body.

[0012] Preferably, the first driving mechanism comprises a mounting seat, an electric push cylinder, a driving motor, a guide rod, an annular transmission member and a transmission block, so that the mounting seat is slidably mounted on a vertical rod arranged vertically on the base, the electric push cylinder is vertically fixed above the base, the end of the telescopic rod of the electric push cylinder is fixedly connected to the bottom of the mounting seat, the driving motor is fixed on the mounting seat, a vertically extending sleeve is fixed on the output shaft of the driving motor, a transmission rod is slidably inserted in the sleeve, the bottom end of the transmission rod extends above the sleeve, a spring is vertically arranged in the sleeve, the bottom end of the spring is fixed to the inner bottom wall of the sleeve, and the top end is fixed to the bottom end of the transmission rod, the guide rod is vertically fixed to the top end of the transmission rod, an annular cover shell is coaxially fixed below the inner tank body, the annular transmission member is installed in the annular cover shell by a connecting frame fixed on the inner wall of the annular cover shell, the guide rod slides through the annular transmission member, a transmission block is fixed on the top of the guide rod, the top of the annular transmission member is provided with a second bayonet for the transmission block to match and snap in, and the bottom end of the auger conveying rod is provided with a first bayonet for the transmission block to match and snap in.

[0013] Preferably, the inner cavity of the sleeve has a rectangular cross-section, and the transmission rod has a rectangular cross-section that matches the inner cavity of the sleeve.

[0014] Preferably, the cross section of the transmission block is rectangular, and the cross sections of the second bayonet and the first bayonet are both rectangular shapes that match the transmission block.

[0015] Preferably, the second driving mechanism includes a driving motor, a threaded rod and a shell. The shell is fixed to the bottom of the inner tank body, the driving motor is fixedly installed in the shell, the threaded rod is rotatably installed in the storage cavity and extends vertically, the bottom end of the threaded rod extends through the shell and is fixedly connected to the output shaft of the driving motor. A threaded hole is provided on the annular plate, and the threaded rod is installed in the threaded hole through which the thread is threaded.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0017] 1. The present invention uses an auger conveying rod to spirally convey the fermented material entering the inner tube body upward. Under the blocking effect of the top cover on the top of the inner tank body, the fermented material falls back into the storage chamber, thereby turning the fermented material, making the fermented material that has been squeezed and layered for a long time have better fluffiness, ensuring that the fermented material is evenly distributed in the storage chamber, thereby improving the fermentation quality and fermentation yield.

[0018] 2. The present invention utilizes the second driving mechanism to adjust the annular plate to different heights, which cooperates with the spiral upward conveying action of the auger conveying rod to achieve the turning and discharging effects of the fermented material. The annular plate and the auger conveying rod serve as both the turning and discharging parts of the fermented material, thus killing two birds with one stone.

[0019] 3. The present invention drives the inner tank body to rotate independently through the first driving mechanism, and drives the spiral push plate to rotate synchronously. The spiral push plate rotating in the base can push the organic waste crushed material near the bottom of the base and guide it upward at an angle, and a short blank area is formed between the two spiral push plates. The uppermost layer of organic waste crushed material guided upward will fall to the bottom of the blank area, so that the organic waste crushed material can be flipped up and down and replaced, which also solves the problem of uneven distribution of organic waste crushed material due to extrusion and stratification caused by gravity, and further improves the fermentation quality and yield.

[0020] 4. The present invention utilizes the telescopic work of the electric push cylinder to drive the transmission block to move up and down, and combines the elastic effect of the spring. When the transmission block is aligned with the first bayonet, the spring elastic force is utilized to push the transmission block into the first bayonet, and the drive path can be switched to the auger conveying rod. When the transmission block is aligned with the second bayonet, the spring elastic force is utilized to pull the transmission block into the second bayonet, and the drive path is switched to the inner tank body, thereby realizing effective allocation of the drive path, so that the rotation of the inner tank body and the auger conveying rod share the same drive source, effectively reducing the cost investment of the equipment. In addition, the components for switching the drive path are of conventional structure, which are easy to obtain, have low manufacturing cost, and the overall layout is reasonable and effective.

[0021] 5. In the present invention, the cross-sections of the sleeve and the transmission rod are designed to be mutually matching rectangular shapes, which can achieve a transmission positioning effect and prevent the two from having the ability to rotate relative to each other. Even when the sleeve and the transmission rod slide against each other, transmission can still be performed normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the fermentation tank in the present invention; Figure 3 It is a schematic diagram of the local structure of the outer surface of the inner tank body in the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the inner tank body and the inner tube body; Figure 5 for Figure 4 A schematic diagram of the structure enlargement in the middle; Figure 6 It is a schematic diagram of the local structure of the driving mechanism in the present invention; Figure 7 It is a schematic cross-sectional view of a local structure of the driving mechanism in the present invention; Figure 8 It is a schematic diagram of the partial internal structure of the annular cover in the present invention; Fig. 9 is a schematic diagram of the position of the annular plate when the fermented material is placed into the storage chamber; Fig.10 is a schematic diagram of the position of the annular plate when the fermentation material is turned over; Fig.11 is a schematic diagram of the position of the annular plate when the fermented product is discharged; Fig.12 This is a schematic diagram of the position of the transmission block when the auger conveying rod is driven to rotate alone; Fig.13 This is a schematic diagram of the position of the transmission block when the inner tank body is driven to rotate alone; Fig.14 It is a schematic diagram of the structure when a spiral push plate is used to push and turn over organic waste crushers.

[0023] In the figure: 01, fermented material; 02, organic waste crushed material; 03, storage chamber; 1, base; 101, column; 2, fermentation tank; 21, delivery port; 22, fermentation residue discharge port; 23, drainage port; 24, exhaust pipe; 3, inner tank body; 31, hole; 32, spiral push plate; 4, inner tube body; 41, feed port; 5, auger conveying rod; 51, first bayonet; 6, annular plate; 61, threaded hole; 7, first driving mechanism; 701, pole; 702, annular cover; 703, connecting frame; 71, mounting seat; 72, electric push cylinder; 73, driving motor; 74, sleeve; 75, transmission rod; 76, spring; 77, guide rod; 78, annular transmission member; 781, second bayonet; 79, transmission block; 8, second driving mechanism; 81, driving motor; 82, threaded rod; 83, shell. DETAILED DESCRIPTION

[0024] See also Figure 1-Figure 14 The present invention provides a garbage fermentation device for producing hydrogen from biomass. The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] A garbage fermentation device for biomass hydrogen production, the fermentation device comprises a base 1 and a fermentation tank 2, the fermentation tank 2 is installed above the base 1 by means of a column 101 vertically arranged on the base 1, a loading port 21 and an exhaust pipe 24 are provided on the top of the fermentation tank 2, the loading port 21 is used to load organic garbage crushed material 02 into the fermentation tank 2, the exhaust pipe 24 is used to discharge the gas product produced by the fermentation and guide it to the gas separation system, so as to separate and process the required hydrogen, a fermentation residue discharge port 22 is provided at the bottom of the fermentation tank 2, the fermentation residue discharge port 22 is used to discharge the residue after the organic garbage crushed material 02 is fermented, and a liquid discharge port 23 is provided on the side of the fermentation tank 2 near its bottom end, the liquid discharge port 23 is used to discharge the liquid product produced by the fermentation in the base 1.

[0026] An inner tank body 3 with an open top and a closed bottom is rotatably installed in the base 1, and the portion of the inner tank body 3 located in the fermentation tank 2 is evenly distributed with holes 31. An inner tube body 4 with an open top and a closed bottom is fixedly installed in the base 1 by a support arm (not shown in the figure), and the inner tube body 4 is coaxially inserted in the inner tank body 3 and rotatably connected to the inner tank body 3. A storage cavity 03 for storing fermented material 01 is formed between the inner wall of the inner tank body 3 and the outer wall of the inner tube body 4, and the top ends of the inner tank body 3 and the inner tube body 4 extend to the top of the fermentation tank 2, so as to facilitate the placement of the fermented material 01 into the storage cavity 03. In addition, a top cover (not marked in the figure) is provided at the placement port 21 and the top end of the inner tank body 3, so as to facilitate the sealing of the placement port 21 and the top of the inner tank body 3 to ensure the sealing during fermentation in the fermentation tank 2, and the top cover is detachable.

[0027] The inner tank body 3 is evenly distributed with holes 31 , which can allow the fermented material 01 in the storage chamber 03 to pass into the fermentation tank 2 and contact with the organic waste crushed material 02 for fermentation.

[0028] The inner tube body 4 has feed ports 41 evenly distributed on its outer wall near its bottom for the fermented material 01 in the storage cavity 03 to enter the inner tube body 4. The top of the inner tube body 4 is slightly lower than the top of the inner tank body 3. An auger conveying rod 5 is coaxially rotatably installed in the inner tube body 4 for spirally conveying the fermented material 01 in the inner tube body 4 upward.

[0029] After fermentation for a certain period of time, the fermented material 01 in the storage chamber 03 is stratified due to gravity. The fermented material 01 in the storage chamber 03 enters the inner tube body 4 through the feed port 41, and is spirally transported upward by the auger conveying rod 5. Under the blocking effect of the top cover of the inner tank body 3, the fermented material 01 falls back into the storage chamber 03, and the fermented material 01 is turned over, so that the fermented material 01 that has been squeezed and stratified for a long time has better fluffiness, ensuring that the fermented material 01 is evenly distributed in the storage chamber 03, thereby improving the fermentation quality and fermentation yield.

[0030] In addition, an annular plate 6 is movably arranged in the storage cavity 03, and a second driving mechanism 8 for driving the annular plate 6 to be raised and lowered is provided on the inner tank body 3. The annular plate 6 can achieve different functions by being raised and lowered to different positions.

[0031] Specifically, when the fermentation product 01 is fermenting normally, Fig. 9 As shown, the second driving mechanism 8 drives the annular plate 6 to move to a position above the feed inlet 41, so as to prevent the fermented material 01 from falling into the inner tube 4 from the feed inlet 41. Fig.10 As shown, the annular plate 6 is moved and adjusted to below the feed port 41 so that the fermented material 01 falls into the inner tube 4 and is lifted upward. After all the fermented material 01 in the storage chamber 03 enters the inner tube 4, the annular plate 6 is readjusted to Fig. 9 , it can be ensured that the fermented product 01 does not fall into the inner tube 4 from the feed port 41 when it falls into the storage chamber 03 again. In addition, when the fermented product 01 in the storage chamber 03 is replaced, as shown in FIG. Fig.11 As shown, the arrow in the figure indicates the moving direction of the fermented product 01 when it is discharged. The top cover on the top of the inner tank body 3 is removed, the annular plate 6 is adjusted upward to be flush with the top of the inner tube body 4, and the fermented product 01 is continuously transported upward by the auger conveying rod 5. Under the blocking effect of the annular plate 6, the fermented product 01 is prevented from falling into the storage chamber 03, so that the discarded fermented product 01 can be discharged from the upper port of the inner tank body 3, which is convenient for the discharge and replacement of the fermented product 01.

[0032] By utilizing the second driving mechanism 8 to adjust the annular plate 6 to different heights, in cooperation with the spiral upward conveying action of the auger conveying rod 5, the turning and discharging effects of the fermented material 01 can be achieved. The annular plate 6 and the auger conveying rod 5 serve as both turning and discharging parts of the fermented material 01, thus killing two birds with one stone.

[0033] A spiral push plate 32 is arranged in a ring array on the outer wall of the inner tank body 3, and a first driving mechanism 7 is provided on the base 1. The first driving mechanism 7 is used to drive the auger conveying rod 5 to rotate alone or drive the inner tank body 3 to rotate alone. When the first driving mechanism 7 drives the auger conveying rod 5 to rotate alone, the fermented material 01 can be spirally conveyed upward.

[0034] When the first driving mechanism 7 drives the inner tank body 3 to rotate alone, the inner tank body 3 can drive the spiral push plate 32 to rotate synchronously, as shown in the attached manual. Fig.14 As shown in the figure, the dotted arrow points to the movement direction of the spiral push plate 32, and the solid arrow points to the moving direction of the organic waste crushed object 02 when being pushed. The spiral push plate 32 rotating in the base 1 can push the organic waste crushed object 02 near the bottom of the base 1 and guide it upward at an angle, and a short blank area is formed between the two spiral push plates 32. The uppermost layer of the organic waste crushed object 02 guided upward will fall to the bottom of the blank area, so that the organic waste crushed object 02 can be flipped up and down and replaced, which also solves the problem of uneven distribution of the organic waste crushed object 02 due to gravity, and further improves the fermentation quality and yield.

[0035] like Figure 5-Figure 8 As shown, the first driving mechanism 7 includes a mounting seat 71, an electric push cylinder 72, a driving motor 73, a guide rod 77, an annular transmission member 78 and a transmission block 79, so that the mounting seat 71 is slidably sleeved on a vertical rod 701 arranged vertically on the base 1, the electric push cylinder 72 is vertically fixed above the base 1, the end of the telescopic rod of the electric push cylinder 72 is fixedly connected to the bottom of the mounting seat 71, the driving motor 73 is fixed on the mounting seat 71, and a vertically extending sleeve 74 is fixed on the output shaft of the driving motor 73, a transmission rod 75 is slidably inserted in the sleeve 74, the bottom end of the transmission rod 75 extends to the top of the sleeve 74, and a spring is vertically arranged in the sleeve 74 76, the bottom end of the spring 76 is fixed to the inner bottom wall of the sleeve 74, and the top end is fixed to the bottom end of the transmission rod 75. The guide rod 77 is vertically fixed to the top end of the transmission rod 75. An annular cover 702 is coaxially fixed below the inner tank body 3. The annular transmission member 78 is installed in the annular cover 702 through a connecting frame 703 fixed on the inner wall of the annular cover 702. The guide rod 77 slides through the annular transmission member 78. A transmission block 79 is fixed to the top of the guide rod 77. A second bayonet 781 is provided on the top of the annular transmission member 78 for the transmission block 79 to match and snap into. A first bayonet 51 is provided on the bottom end of the auger conveying rod 5 for the transmission block 79 to match and snap into.

[0036] When it is necessary to drive the auger conveying rod 5 to rotate and turn the fermented material 01, the electric push cylinder 72 is extended to push the mounting seat 71 and the components thereon to move upward until the transmission block 79 is in a state of conflict with the bottom end of the auger conveying rod 5. At this time, the transmission rod 75 slides to the bottom of the sleeve 74, so that the spring 76 is elastically compressed, and then the driving motor 73 works to drive the sleeve 74, the transmission rod 75, the guide rod 77 and the transmission block 79 to rotate. During the rotation process, when the transmission block 79 is aligned with the first bayonet 51, the elastic force of the spring 76 can push the transmission block 79 to match and snap into the first bayonet 51. Fig.12 As shown, the transmission function is realized, and then when the driving motor 73 continues to work, the auger conveying rod 5 can be driven to rotate. At this time, the transmission block 79 and the second bayonet 781 are in a separated state and will not drive the inner tank body 3 to rotate.

[0037] When it is necessary to drive the inner tank body 3 to rotate to turn over the organic waste crusher 02, the electric push cylinder 72 retracts to drive the mounting seat 71 and the components thereon to move downward until the bottom end of the transmission block 79 is in conflict with the upper end of the annular transmission member 78. At this time, the transmission rod 75 moves upward relative to the sleeve 74 and stretches the spring 76 to store force. Then, the transmission block 79 is driven to rotate by the driving motor 73. During the rotation process, when the transmission block 79 is aligned with the second bayonet 781, the spring 76 is used to pull the transmission block 79 to match and snap into the second bayonet 781. Fig.13 As shown, the transmission function is realized, and then when the driving motor 73 continues to work, the inner tank body 3 can be driven to rotate. At this time, the transmission block 79 is separated from the first bayonet 51 and will not drive the auger conveying rod 5 to rotate.

[0038] The electric push cylinder 72 is used to extend and retract to drive the transmission block 79 to move up and down. Combined with the elastic effect of the spring 76, when the transmission block 79 is aligned with the first bayonet 51, the elastic force of the spring 76 is used to push the transmission block 79 to be clamped into the first bayonet 51, and the drive path can be switched to the auger conveying rod 5. When the transmission block 79 is aligned with the second bayonet 781, the spring 76 is used to elastically pull the transmission block 79 to be clamped into the second bayonet 781, and the drive path is switched to the inner tank body 3, thereby realizing effective allocation of the drive path, so that the rotation of the inner tank body 3 and the auger conveying rod 5 share the same drive source, effectively reducing the cost of the equipment. In addition, the components used to switch the drive path are of conventional structure, easy to obtain, low manufacturing cost, and the overall layout is reasonable and effective.

[0039] In addition, it is worth mentioning that the cross-section of the inner cavity of the sleeve 74 is rectangular, and the cross-section of the transmission rod 75 is a rectangular shape that matches the inner cavity of the sleeve 74. The cross-sections of the sleeve 74 and the transmission rod 75 are designed to be rectangular shapes that match each other, which can achieve a transmission positioning effect and avoid the ability of the two to rotate relative to each other. Even when the sleeve 74 and the transmission rod 75 slide against each other, transmission can be carried out normally.

[0040] The cross-section of the transmission block 79 is rectangular, and the cross-sections of the second bayonet 781 and the first bayonet 51 are both rectangular shapes that match the transmission block 79. The cross-sections of the second bayonet 781 and the first bayonet 51 are both designed to be rectangular shapes that match the cross-section of the transmission block 79, which plays a transmission positioning effect and avoids the ability of relative rotation when the transmission block 79 is inserted into the second bayonet 781 or the transmission block 79 is inserted into the first bayonet 51, thereby ensuring the effectiveness of the transmission.

[0041] like Figure 5 As shown, the second driving mechanism 8 includes a driving motor 81, a threaded rod 82 and a shell 83. The shell 83 is fixed at the bottom of the inner tank body 3. The driving motor 81 is fixedly installed in the shell 83. The threaded rod 82 is rotatably installed in the storage cavity 03 and extends vertically. The bottom end of the threaded rod 82 extends through the shell 83 and is fixedly connected to the output shaft of the driving motor 81. A threaded hole 61 is provided on the annular plate 6. The threaded rod 82 is threadedly matched and installed in the threaded hole 61. When the driving motor 81 works, its output shaft drives the threaded rod 82 to rotate, and the rotating threaded rod 82 is threadedly driven with the threaded hole 61, thereby driving the annular plate 6 to perform corresponding lifting and lowering movements, providing drive for the lifting and lowering adjustment of the annular plate 6.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A garbage fermentation device for biomass hydrogen production, comprising a base (1) and a fermentation tank (2), wherein the fermentation tank (2) is installed above the base (1) via a column (101) vertically arranged on the base (1), characterized in that: An inner tank body (3) with an open top and a closed bottom is rotatably installed in the base (1), and a portion of the inner tank body (3) located in the fermentation tank (2) is evenly distributed with holes (31); An inner tube body (4) with an open top and a closed bottom is fixedly mounted in the base (1) via a support arm; the inner tube body (4) is coaxially inserted in the inner tank body (3) and is rotatably connected to the inner tank body (3); A storage cavity (03) for storing the fermented product (01) is formed between the inner wall of the inner tank body (3) and the outer wall of the inner tube body (4); feed ports (41) are uniformly arranged on the outer peripheral wall of the inner tube body (4) near its bottom, through which the fermented product (01) in the storage cavity (03) can pass and enter the inner tube body (4); The top end of the inner tube body (4) is slightly lower than the top end of the inner tank body (3), and an auger conveying rod (5) for spirally conveying the fermented material (01) in the inner tube body (4) is coaxially rotatably installed in the inner tube body (4).

2. The garbage fermentation equipment for biomass hydrogen production according to claim 1, characterized in that: An annular plate (6) is movably arranged in the storage cavity (03), and a second driving mechanism (8) for driving the annular plate (6) to be raised and lowered is provided on the inner tank body (3); The outer wall of the inner tank body (3) is provided with spiral push plates (32) in a ring-shaped array, and the base (1) is provided with a first driving mechanism (7), which is used to drive the auger conveying rod (5) to rotate alone or to drive the inner tank body (3) to rotate alone.

3. The garbage fermentation equipment for biomass hydrogen production according to claim 1, characterized in that: The top ends of the inner tank body (3) and the inner tube body (4) both extend to the top of the fermentation tank (2).

4. The garbage fermentation equipment for biomass hydrogen production according to claim 2, characterized in that: The top of the fermentation tank (2) is provided with a feeding port (21) and an exhaust pipe (24); The bottom of the fermentation tank (2) is provided with a fermentation residue discharge port (22), and the side of the fermentation tank (2) near its bottom end is provided with a liquid discharge port (23); The delivery port (21) and the top end of the inner tank body (3) are both provided with a top cover.

5. The garbage fermentation equipment for biomass hydrogen production according to claim 4, characterized in that: The first driving mechanism (7) comprises a mounting seat (71), an electric push cylinder (72), a driving motor (73), a guide rod (77), an annular transmission member (78) and a transmission block (79); Therefore, the mounting seat (71) is slidably mounted on a vertical rod (701) arranged vertically on the base (1), the electric push cylinder (72) is vertically fixed above the base (1), and the end of the telescopic rod of the electric push cylinder (72) is fixedly connected to the bottom of the mounting seat (71); The drive motor (73) is fixed on the mounting seat (71); a vertically extending sleeve (74) is fixed on the output shaft of the drive motor (73); a transmission rod (75) is slidably inserted in the sleeve (74); and the bottom end of the transmission rod (75) extends above the sleeve (74); A spring (76) is vertically arranged in the sleeve (74), the bottom end of the spring (76) is fixed to the inner bottom wall of the sleeve (74), and the top end is fixed to the bottom end of the transmission rod (75); The guide rod (77) is vertically fixed on the top end of the transmission rod (75); An annular cover shell (702) is coaxially fixed below the inner tank body (3), and the annular transmission member (78) is installed in the annular cover shell (702) via a connecting frame (703) fixed on the inner wall of the annular cover shell (702); The guide rod (77) slidably passes through the annular transmission member (78); A transmission block (79) is fixed on the top of the guide rod (77); The top of the annular transmission member (78) is provided with a second bayonet (781) for the transmission block (79) to be matched and snapped into; The bottom end of the auger conveying rod (5) is provided with a first snap-in opening (51) for the transmission block (79) to be matched and snap-into.

6. The garbage fermentation equipment for biomass hydrogen production according to claim 5, characterized in that: The inner cavity of the sleeve (74) has a rectangular cross-section, and the transmission rod (75) has a rectangular cross-section that matches the inner cavity of the sleeve (74).

7. The garbage fermentation equipment for biomass hydrogen production according to claim 5, characterized in that: The cross-section of the transmission block (79) is rectangular, and the cross-sections of the second bayonet (781) and the first bayonet (51) are both rectangular and matched with the transmission block (79).

8. The garbage fermentation equipment for biomass hydrogen production according to claim 2, characterized in that: The second driving mechanism (8) comprises a driving motor (81), a threaded rod (82) and a housing (83); The shell (83) is fixed to the bottom of the inner tank (3), and the drive motor (81) is fixedly installed in the shell (83); The threaded rod (82) is rotatably mounted in the storage cavity (03) and extends vertically; the bottom end of the threaded rod (82) extends through the housing (83) and is fixedly connected to the output shaft of the drive motor (81); The annular plate (6) is provided with a threaded hole (61), and the threaded rod (82) is installed in the threaded hole (61) with a penetrating thread matching.

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