CN114015556B

CN114015556B - Agricultural rural solid organic waste dry fermentation device

Info

Publication number: CN114015556B
Application number: CN202111407377.5A
Authority: CN
Inventors: 王桂军; 钟立兵; 刘宏飞
Original assignee: Jiangsu New Source Energy Ring Technology Co ltd
Current assignee: Jiangsu New Source Energy Ring Technology Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2024-04-30
Anticipated expiration: 2041-11-24
Also published as: CN114015556A

Abstract

The application relates to a dry fermentation device for agricultural rural solid organic waste, which belongs to the technical field of organic waste recycling, and comprises a fermentation tank and a water supply assembly, wherein one end of the fermentation tank extends upwards to the ground obliquely and is provided with an inlet, a sealing film covers the fermentation tank, an enrichment tank is arranged at the bottom of the fermentation tank, a biological strain carrier is arranged in the enrichment tank, a cover plate for blocking a notch is arranged in the enrichment tank, a plurality of filtering holes are formed in the cover plate, and the water supply assembly is used for spraying into the fermentation tank and supplying water into the enrichment tank. The application has the effects of convenient stacking of straws in the large-scale biogas digester, time saving and labor saving.

Description

Agricultural rural solid organic waste dry fermentation device

Technical Field

The application relates to the technical field of organic waste resource utilization, in particular to an agricultural rural solid organic waste dry fermentation device.

Background

Biogas is a combustible gas produced by fermenting various organic substances at proper temperature and pH value under the condition of isolating air, and a biogas digester is a facility for producing biogas.

In the biogas manufacturing process, organic wastes such as straws and the like are required to be put into a biogas digester, a conventional small-scale biogas digester generally adopts a manual dumping mode, and for a large-scale biogas digester, vehicles are generally adopted to transport the biogas digester to the periphery for dumping, and then the straws are piled and paved in the center of the biogas digester manually, so that time and labor are wasted.

Disclosure of Invention

In order to solve the problem that large-scale biogas digester straw stacking is labor-consuming, the application provides an agricultural rural solid organic waste dry fermentation device.

The application provides an agricultural rural solid organic waste dry fermentation device which adopts the following technical scheme:

The utility model provides an agricultural rural solid organic waste dry fermentation device, includes fermentation vat and water supply assembly, the one end slope of fermentation vat upwards extends to ground and establishes to the entry, the fermentation vat is covered with the sealing membrane, enrichment tank has been seted up to the fermentation vat bottom, be equipped with biological bacterial carrier in the enrichment tank, be equipped with the apron that is used for blocking the notch in the enrichment tank, a plurality of filtration pores have been seted up on the apron, water supply assembly is used for spraying in to the fermentation vat and supplying water to the enrichment tank.

By adopting the technical scheme, as the bottom of the fermentation tank has an inclined slope to the ground, a truck for loading wastes can be directly opened into the fermentation tank to pour or transport the wastes away, thereby being convenient and quick; when fermentation is carried out, waste is piled up in a fermentation tank and covered by a sealing film, water is sprayed on the waste through a water supply assembly, percolate exuded by the waste flows into an enrichment tank to provide a propagation environment for biological strain carriers, water is conveyed into the enrichment tank through the water supply assembly after the biological strain carriers are propagated for a period of time, the biological strain is flushed into the fermentation tank along with water flow, and the biological strain is mixed into the waste for fermentation to generate methane.

Optionally, an impervious concrete bottom plate is paved at the bottom of the fermentation tank, and concrete retaining walls distributed along the periphery of the impervious concrete bottom plate are fixed on the impervious concrete bottom plate.

By adopting the technical scheme, the concrete retaining wall and the impervious concrete bottom plate increase the integral strength of the fermentation tank, so that the internal gas pressure is ensured on one hand, the vehicle is convenient to pass on the other hand, and the impervious concrete bottom plate also reduces the possibility of liquid infiltration into soil.

Optionally, an insulating layer is laid on the side wall of the concrete retaining wall.

Through adopting above-mentioned technical scheme, the heat preservation has reduced the interference of external temperature to the fermentation vat inside for the fermentation vat inside maintains in certain temperature range, increases fermentation effect.

Optionally, the one end that concrete retaining wall and impervious concrete bottom plate are located the fermentation vat entry all pre-buried has the channel-section steel, sealing membrane side pad is in the channel-section steel, be equipped with in the channel-section steel and be used for supporting the gasbag that tightly with sealing membrane and channel-section steel inner wall.

Through adopting above-mentioned technical scheme, the inflation or the exhaust that utilize the gasbag realizes fixed or dismantlement to the sealing membrane, and is simple swift.

Optionally, two opposite inner side walls of the channel steel are mutually symmetrical and distributed in an inclined mode, and the width of a notch of the channel steel is smaller than the width of the bottom of the channel steel.

By adopting the technical scheme, the narrow opening of the channel steel reduces the possibility of falling off of the air bag.

Optionally, a guardrail is arranged on the concrete retaining wall.

Through adopting above-mentioned technical scheme, the guardrail has played safety protection's effect.

Optionally, the water supply assembly includes the infiltration pond, back flush pipe, first water pump and raceway, the raceway links to each other with first water pump delivery port, be equipped with a plurality of orifices on the raceway, first water pump water inlet passes through the inlet tube and links to each other with the infiltration pond, the enrichment groove passes through the back flow and links to each other with the infiltration pond, the back flush pipe buries in the enrichment inslot, and has seted up a plurality of apopores on the back flush pipe, be equipped with the second water pump in the infiltration pond, the second water pump passes through the pipeline and links to each other with the back flush pipe.

By adopting the technical scheme, the first water pump is started to pump the water in the percolating pond into the water pipe, then the water flows onto the waste from each spray hole, the percolate exuded by the waste flows into the enrichment tank, and flows into the percolating pond through the return pipe, so that water resources are saved; the second water pump is started to convey the water in the percolating pond to the back flushing pipe, and the water in the back flushing pipe flows into the enrichment tank from each water outlet hole and overflows to the fermentation tank from the enrichment tank.

Optionally, the fermentation tank further comprises a water sealed tank and a gas pipe, water is stored in the water sealed tank, the side wall of the water sealed tank is connected with an exhaust pipe, one end of the gas pipe is communicated with the fermentation tank, the other end of the gas pipe is connected with the water sealed tank and stretches into the water sealed tank, one end of the gas pipe, which is positioned in the water sealed tank, is immersed in water, and an adjusting piece for adjusting the pressure of the gas inlet end of the gas pipe is arranged on the gas pipe.

By adopting the technical scheme, the air pipe adopts a water sealing mode, so that the air tightness of the device is improved; when the internal pressure of the fermentation tank is greater than the pressure of the air outlet end of the air delivery pipe, the biogas is discharged from the air delivery pipe and filtered by water, and the adjusting piece can automatically adjust the submerged length of the air delivery pipe according to the pressure of the biogas, so that the pressure of the air outlet end of the air delivery pipe is adjusted, the biogas is rapidly output, and the risk of overlarge or sudden increase of the pressure in the fermentation tank is reduced.

Optionally, the regulating part includes flexible pipe and kickboard, flexible pipe connection is in the gas-supply pipe tip, the kickboard is connected on flexible pipe, the kickboard bottom surface is equipped with the balloon, be connected with the fixed pipe on the balloon, fixed pipe is fixed and communicates with the gas-supply pipe through hose with the kickboard.

Through adopting above-mentioned technical scheme, when the gas-supply pipe internal pressure increased, the volume of balloon increased, the buoyancy that applys the kicking plate increases for the kicking plate drives flexible pipe and rises, has reduced flexible pipe submerged length, makes marsh gas exhaust pressure reduce.

Optionally, be equipped with a plurality of dollies in the fermentation vat, the dolly includes rim and a plurality of flitch, the universal wheel is installed to rim bottom surface, be equipped with four steel pipes on the rim perpendicularly, and two liang of symmetrical arrangement of four steel pipes, each all be connected with a plurality of branch pipes on the steel pipe, the internal diameter of each branch pipe reduces in proper order from bottom to top along the steel pipe direction of height, be connected with a plurality of shunt tubes on the raceway, the shunt tubes is pegged graft in the steel pipe, a plurality of the flitch is along steel pipe direction of height interval arrangement between two sets of steel pipes, the steel pipe all is equipped with the jacking that is used for holding the flitch in corresponding each flitch position, the through-hole has been seted up on the flitch.

By adopting the technical scheme, the waste is piled on the trolley and is carried in or out in the form of the trolley, so that the workload required by manual piling or shoveling is reduced; the water in the water pipe flows into the steel pipe and is directly sent into the waste from each branch pipe, so that the wetting speed of the waste and the uniformity of the water content are increased.

In summary, the present application includes at least one of the following beneficial technical effects:

1. because the bottom of the fermentation tank has an inclined slope to the ground, a truck for loading wastes can be directly opened into the fermentation tank to pour or transport the wastes away, and the fermentation tank is convenient and quick;

2. The adjusting piece can automatically adjust the submerged length of the gas pipe according to the pressure of the methane, so that the pressure of the gas outlet end of the gas pipe is adjusted, the methane is rapidly output, and the risk of overlarge or sudden increase of the pressure in the fermentation tank is reduced; the water in the water pipe flows into the steel pipe and is directly sent into the waste from each branch pipe, so that the wetting speed of the waste and the uniformity of the water content are increased.

Drawings

Fig. 1 is a schematic overall structure of a first embodiment of the present application.

Fig. 2 is an enlarged schematic view of the portion a in fig. 1.

FIG. 3 is a schematic diagram of an embodiment of the present application for embodying an enrichment tank and backwash tube.

Fig. 4 is a schematic view of a concrete wall according to an embodiment of the present application.

Fig. 5 is an enlarged schematic view of the portion B in fig. 4.

Fig. 6 is a schematic diagram of an embodiment of the present application for embodying a water pipe connection.

Fig. 7 is an enlarged schematic view of a portion C in fig. 6.

Fig. 8 is a schematic overall structure of a second embodiment of the present application.

Fig. 9 is a schematic structural diagram of a cart according to a second embodiment of the present application.

Fig. 10 is a schematic structural view of a second embodiment of the present application for embodying an adjusting member.

Fig. 11 is a schematic structural diagram of a guide post and a guide sleeve according to a second embodiment of the present application.

Reference numerals illustrate: 1. a fermentation tank; 11. a sealing film; 12. an enrichment tank; 13. a biological bacterial carrier; 14. a cover plate; 141. filtering holes; 15. a concrete bottom plate with impermeability; 16. a concrete retaining wall; 161. a heat preservation layer; 17. channel steel; 18. an air bag; 19. guard bars; 21. a percolating tank; 22. a back flushing pipe; 221. a water outlet hole; 23. a first water pump; 231. a water inlet pipe; 24. a water pipe; 241. a spray hole; 25. a return pipe; 26. a second water pump; 3. a water sealed tank; 31. a gas pipe; 32. an exhaust pipe; 4. an adjusting member; 41. a telescopic tube; 42. a floating plate; 43. a balloon; 44. a fixed tube; 45. a hose; 46. a guide post; 47. guide sleeve; 5. a trolley; 51. a vehicle tray; 511. a universal wheel; 52. a material plate; 521. a through hole; 53. a steel pipe; 531. a branch pipe; 54. jacking; 55. a shunt tube.

Detailed Description

The application is described in further detail below with reference to fig. 1-11.

Example 1

The embodiment of the application discloses a dry fermentation device for agricultural rural solid organic waste. As shown in fig. 1, fig. 2 and fig. 3, the agricultural rural solid organic waste dry fermentation device comprises a fermentation tank 1, a sealing film 11 and a water supply assembly, wherein the fermentation tank 1 is positioned in soil body and is integrally rectangular, one end of the bottom of the fermentation tank 1 obliquely extends upwards to the ground and is provided with an inlet, the bottom of the fermentation tank 1 is paved with a impervious concrete bottom plate 15 by adopting C30 impervious concrete, an enrichment tank 12 is reserved on the impervious concrete bottom plate 15, the enrichment tank 12 is distributed along the length direction of the impervious concrete bottom plate 15, a biological strain carrier 13 is arranged in the enrichment tank 12, the biological strain carrier 13 adopts biological filter balls, a cover plate 14 for blocking a notch is arranged in the enrichment tank 12, and a plurality of filter holes 141 are formed in the cover plate 14. The impervious concrete bottom plate 15 is fixedly provided with concrete retaining walls 16 distributed along the periphery of the impervious concrete bottom plate, the concrete retaining walls 16 are integrally 匚 -shaped, the retaining walls are formed by casting C30 concrete and are higher than the ground, heat preservation layers 161 are paved on the inner side and the outer side of the concrete retaining walls 16, and a circle of protective guard 19 is vertically arranged on the concrete retaining walls 16.

As shown in fig. 4, 5 and 6, the end of the concrete retaining wall 16 and the impervious concrete bottom plate 15, which is located at the inlet of the fermentation tank 1, is pre-embedded with channel steel 17, two opposite inner side walls of the channel steel 17 are distributed obliquely and symmetrically, and the width of the notch of the channel steel 17 is smaller than the width of the bottom of the tank, so that the section of the channel steel 17 is in an isosceles trapezoid shape. The waste is piled up in fermentation vat 1, and sealing membrane 11 covers and covers the waste on fermentation vat 1, and sealing membrane 11 side pad is in channel-section steel 17, is equipped with inflatable or water injection gasbag 18 in the channel-section steel 17, and the gasbag 18 is blocked in channel-section steel 17 and with sealing membrane 11 support tightly on channel-section steel 17 inside wall after inflating, has realized sealing membrane 11's sealed effect, when needs are uncovered sealing membrane 11, the operator only need with its discharge alright in the gasbag 18, and is simple and convenient.

Referring to fig. 5, 6 and 7, the water supply assembly includes a percolating tank 21, a backwash pipe 22 and a first water pump 23, the percolating tank 21 is located outside the fermentation tank 1, a water inlet of the first water pump 23 is connected with the percolating tank 21 through a water inlet pipe 231, water outlet of the first water pump 23 is connected with a water pipe 24, the water pipe 24 penetrates into the fermentation tank 1 and is put on waste, a plurality of spray holes 241 are formed in the water pipe 24 and are arranged along the length direction of the water pipe, and the enrichment tank 12 is connected with the percolating tank 21 through a return pipe 25. The back flushing pipe 22 is buried in the enrichment tank 12, a plurality of water outlet holes 221 are formed in the back flushing pipe 22, a second water pump 26 is arranged in the percolating tank 21, and the second water pump 26 is connected with the back flushing pipe 22 through a pipeline.

The implementation principle of the embodiment 1 is as follows: the operator drives into the fermentation vat 1 along the slope of fermentation vat 1 entrance with the freight train, stacks the discarded object such as straw into fermentation vat 1, stacks the back and takes the raceway 24 on discarded object and covers sealing membrane 11 and seals, starts first water pump 23, and first water pump 23 pumps the water in the infiltration pond 21 into raceway 24, and the water in raceway 24 flows into the straw from each orifice 241, then oozes from the straw and forms the infiltration liquid and flows into enrichment tank 12 by the filtration pore 141, returns to the infiltration pond 21 through back flow pipe 25. The percolate provides a good propagation environment for biological strains, when the strains are propagated for a period of time, the second water pump 26 is started, the second water pump 26 pumps water into the backwash pipe 22, the water in the backwash pipe 22 flows into the enrichment tank 12 from each water outlet 221 and overflows into the fermentation tank 1 through the filter holes 141, the strains are attached to the straw to enable the straw to ferment in a closed environment, thereby generating methane, and finally the methane in the fermentation tank 1 is pumped out by using the pumping equipment and is conveyed to a user side through a pipeline. The straw loading vehicle is utilized to directly drive the straw into the fermentation tank 1, so that the manual workload is reduced, the straw stacking and discharging efficiency is improved, and the straw stacking and discharging is convenient and quick.

Example 2

As shown in fig. 8 and 9, the difference between this embodiment and embodiment 1 is that a plurality of trolleys 5 are provided in the fermentation vat 1, each trolley 5 includes a trolley disc 51, a plurality of universal wheels 511 are mounted on the bottom surface of the trolley disc 51, four steel pipes 53 are vertically provided on the trolley disc 51, the upper ends of the steel pipes 53 are open, the lower ends are closed, each steel pipe 53 is connected with a plurality of branch pipes 531, the branch pipes 531 are made of rubber, the inner diameters of the branch pipes 531 are sequentially reduced from bottom to top along the height direction of the steel pipe 53, the four steel pipes 53 are symmetrically arranged into two groups, the two groups of steel pipes 53 are vertically provided with fixed jacking 54 on opposite sides, the jacking 54 is in one-to-one correspondence with the branch pipes 531 and lower than the branch pipes 531, the four jacking 54 at each layer of height are respectively provided with a material plate 52, and the material plate 52 is provided with a plurality of through holes 521. The water pipe 24 is connected with a plurality of shunt tubes 55, and the shunt tubes 55 are inserted into the steel pipes 53.

When stacking, an operator spreads the straws on each layer of material plates 52 and inserts corresponding branch pipes 531 into the straws, pushes each trolley 5 into the fermentation tank 1, then sequentially arranges the straws, each row of trolley 5 corresponds to one or two water conveying pipes 24, the shunt pipes 55 on the water conveying pipes 24 are inserted into the steel pipes 53, the first water pump 23 is started, one part of water in the water conveying pipes 24 flows to the straws through the nozzles, the other part of water flows into the steel pipes 53 through the shunt pipes 55, and then the water is input into the straws through each branch pipe 531, so that on one hand, the speed of enabling the straws to reach a specific water content is increased, on the other hand, the uniformity of the water content of each part of straws is also increased, meanwhile, the inner diameter of each branch pipe 531 on each steel pipe 53 is gradually decreased from bottom to top, the water quantity of the straws at the bottom is ensured, and the straws above are matched with the spraying of the water conveying pipes 24. After fermentation, an operator can directly drag the trolley 5 out of the fermentation tank 1 by using a trailer, so that the treatment time is saved.

As shown in fig. 8, a water sealed tank 3 is arranged outside the fermentation tank 1, water is stored in the water sealed tank 3, the side wall of the water sealed tank 3 is connected with an exhaust pipe 32, the air inlet end of the exhaust pipe 32 is higher than the liquid level, the side wall of the concrete retaining wall 16 is connected with an air pipe 31, the air pipe 31 penetrates out of the fermentation tank 1, is connected with the water sealed tank 3 and stretches into the water sealed tank 3, one end of the air pipe 31, which is positioned in the water sealed tank 3, is vertically immersed in water downwards, and an adjusting piece 4 for adjusting the pressure of the air inlet end of the air pipe is arranged on the air pipe 31.

Referring to fig. 10 and 11, the adjusting member 4 includes a telescopic tube 41 connected to an air inlet end of the air tube 31, the telescopic tube 41 is located in a water body, one end of the telescopic tube 41 away from the air tube 31 is connected with a horizontal floating plate 42, two light guide posts 46 symmetrically distributed about the telescopic tube 41 are arranged on the floating plate 42, guide sleeves 47 for the two guide posts 46 to pass through are arranged on the air tube 31, two ends of the floating plate 42 along the length direction are vertically fixed with fixing tubes 44, the two fixing tubes 44 pass through the floating plate 42 downwards and are connected with a balloon 43, and the upper ends of the two fixing tubes 44 are connected with the air tube 31 through hoses 45, so that the floating plate 42 is kept suspended in water when the balloon 43 is in an initial size.

Since the telescopic pipe 41 is immersed in water to seal the gas pipe 31, when the pressure of the biogas in the fermentation tank 1 is higher than the pressure in the telescopic pipe 41, the biogas discharges the water in the telescopic pipe 41 and overflows out of the water, and then the water is conveyed into the gas supply pipeline through the gas exhaust pipe 32. In the gas transmission process, methane in the gas transmission pipe 31 is input into the balloon 43 through the hose 45, so that the volume of the balloon 43 is increased, the buoyancy force received by the balloon 43 after the volume is increased, the floating plate 42 is pushed to drive the telescopic pipe 41 to move upwards, the height of the telescopic pipe 41 inserted into water after the telescopic pipe 41 moves upwards is reduced, the pressure of water column in the telescopic pipe 41 is reduced, and the discharge of methane is accelerated. The bigger the biogas pressure is, the lower the height of the telescopic pipe 41 inserted into water is, the smaller the pressure of the biogas discharge is, otherwise the biogas pressure is reduced, the volume of the balloon 43 is reduced, the floating plate 42 drives the telescopic pipe 41 to move downwards, the bigger the pressure of the biogas discharge is until reaching the pressure value of the sealing gas pipe 31, the automatic adjustment of the biogas conveying pressure in the fermentation tank 1 is realized, the safety and the stability of the fermentation device are improved, the biogas pressure in the exhaust pipe 32 has a certain pressure, and the biogas conveying range is ensured.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The utility model provides an agricultural rural solid organic waste dry fermentation device which characterized in that: including fermentation vat (1) and water supply assembly, the one end slope of fermentation vat (1) upwards extends to ground and establishes to the entry, fermentation vat (1) is gone up to be covered with sealing membrane (11), enrichment tank (12) have been seted up to fermentation vat (1) bottom, be equipped with biological bacterial carrier (13) in enrichment tank (12), be equipped with in enrichment tank (12) apron (14) that are used for blocking the notch, a plurality of filtration pores (141) have been seted up on apron (14), water supply assembly is used for spraying in to fermentation vat (1) and supplying water in to enrichment tank (12), water supply assembly includes infiltration pond (21), backwash pipe (22), first water pump (23) and raceway (24), raceway (24) link to each other with first water pump (23) delivery port, be equipped with a plurality of orifices (241) on raceway (24), first water pump (23) water inlet passes through inlet tube (231) and links to each other with infiltration pond (21), enrichment tank (12) link to each other with infiltration pond (21) through back flush pipe (25), backwash pipe (22) are equipped with a plurality of water pump (21) in the infiltration pond (22) and a plurality of water pump (21), the utility model discloses a fermentation vat, including fermentation vat, second water pump (26), fermentation vat, second water pump (26) are continuous with back flush pipe (22) through the pipeline, be equipped with a plurality of dollies (5) in fermentation vat (1), dolly (5) are including sweep (51) and a plurality of flitch (52), universal wheel (511) are installed to sweep (51) bottom surface, be equipped with four steel pipes (53) on sweep (51) perpendicularly, and four steel pipes (53) are pairwise symmetrical arrangement, each all be connected with a plurality of branch pipes (531) on steel pipe (53), the internal diameter of each branch pipe (531) reduces in proper order from bottom to top along steel pipe (53) direction of height, be connected with a plurality of shunt tubes (55) on raceway (24), shunt tubes (55) are pegged graft in steel pipe (53), a plurality of flitch (52) are arranged between two sets of steel pipes (53) along steel pipe (53) direction of height interval, steel pipe (53) all are equipped with in corresponding each flitch (52) position and are used for holding in the top of flitch (52), through-hole (521) are seted up on flitch (521).

2. The agricultural rural solid organic waste dry fermentation device according to claim 1, wherein: the anti-seepage concrete bottom plate (15) is paved at the bottom of the fermentation tank (1), and concrete retaining walls (16) distributed along the periphery of the anti-seepage concrete bottom plate (15) are fixed on the anti-seepage concrete bottom plate (15).

3. The agricultural rural solid organic waste dry fermentation device according to claim 2, wherein: and an insulating layer (161) is paved on the side wall of the concrete retaining wall (16).

4. The agricultural rural solid organic waste dry fermentation device according to claim 2, wherein: the concrete retaining wall (16) and the impervious concrete bottom plate (15) are located at one end of an inlet of the fermentation tank (1) and are respectively embedded with a channel steel (17), the side edge of the sealing membrane (11) is padded in the channel steel (17), and an air bag (18) for propping the sealing membrane (11) against the inner wall of the channel steel (17) is arranged in the channel steel (17).

5. The agricultural rural solid organic waste dry fermentation device according to claim 4, wherein: two opposite inner side walls of the channel steel (17) are mutually symmetrical and distributed in an inclined mode, and the width of a notch of the channel steel (17) is smaller than the width of the bottom of the groove.

6. The agricultural rural solid organic waste dry fermentation device according to claim 2, wherein: and a guardrail (19) is arranged on the concrete retaining wall (16).

7. The agricultural rural solid organic waste dry fermentation device according to claim 1, wherein: still include water seal tank (3) and gas-supply pipe (31), the storage has water in water seal tank (3), water seal tank (3) lateral wall is connected with blast pipe (32), the one end and the fermentation vat (1) intercommunication of gas-supply pipe (31), the other end links to each other with water seal tank (3) and stretches into in water seal tank (3), one end submergence that gas-supply pipe (31) are located water seal tank (3) is equipped with on gas-supply pipe (31) and is used for adjusting its inlet end pressure's regulating part (4).

8. The agricultural rural solid organic waste dry fermentation device according to claim 7, wherein: the adjusting piece (4) comprises a telescopic pipe (41) and a floating plate (42), the telescopic pipe (41) is connected to the end part of the air pipe (31), the floating plate (42) is connected to the telescopic pipe (41), a balloon (43) is arranged on the bottom surface of the floating plate (42), a fixed pipe (44) is connected to the balloon (43), and the fixed pipe (44) is fixed to the floating plate (42) and communicated with the air pipe (31) through a hose (45).