Energy-saving straw composting and fermentation device

Abstract

The present invention belongs to the field of straw fermentation technology, specifically an energy-saving straw composting and fermentation device, comprising a shell, an outer wall of the shell being provided with a protective shell, the protective shell being provided with a built-in chopping assembly for cutting straw, and a motor of the chopping assembly being connected to a drive shaft. The present invention squeezes an airbag by eccentric rotation of an eccentric shaft and pushing an extrusion rod through an eccentric arm. The airbag continuously adds gas to a water tank, causing the internal pressure of the water tank in a closed state to continuously increase, and then the pressure nozzle at the bottom of the water tank sprays water when the pressure inside the water tank increases. Since the water flow will eventually flow to the bottom, a certain amount of air space is reserved in the water tank. In the initial stage of starting the chopping assembly, the internal pressure of the water tank is insufficient and water cannot be sprayed out temporarily, which can avoid the bottom of the pile from being too wet due to watering and affecting the fermentation. Watering is performed layer by layer during the continuous piling process, so that the straw, auxiliary fermentation materials and water are in contact more evenly.

Description

Technical Field

[0001] The invention relates to the technical field of straw fermentation, in particular to an energy-saving straw composting and fermentation device. Background Art

[0002] Straw composting is the process of converting crop straw into organic fertilizer through microbial fermentation.

[0003] Currently, straw recycling and composting to make organic fertilizer is mostly handled by farmers themselves. Farmers face many problems when composting on their own, such as insufficient temperature, difficulty in forming an anaerobic environment, uneven fermentation between the upper and lower layers during composting, and excessive moisture at the bottom of the compost. At the same time, the cumbersome steps of composting will also waste a lot of time.

[0004] Currently, farmers choose to pile straw in an outdoor sealed container, add fermentation materials and ferment it on its own. This can easily lead to the fertilizer being not fine enough, not being evenly decomposed, and having low nutrient content, which results in poor fertilizer effect.

[0005] Since straw and auxiliary fermentation materials need to be evenly mixed in a certain proportion, and farmers often do not have the equipment to do so, and straw and auxiliary fermentation materials need to be sprinkled with water layer by layer to increase the humidity during the stacking process, this undoubtedly greatly increases the workload of straw composting; at the same time, straw composting needs to be turned over after completion, and it is difficult for farmers to complete the turning over without destroying the anaerobic environment.

[0006] Therefore, it is necessary to provide an energy-saving straw composting and fermentation device to solve the above technical problems. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides an energy-saving straw composting and fermentation device, which solves the problem that farmers have to make straw compost by themselves, which is cumbersome and requires a lot of manpower. At the same time, it completes the processes of quantitative mixing and layer-by-layer watering, thereby improving the quality of straw compost after it is made into fertilizer.

[0008] The present invention provides an energy-saving straw composting and fermentation device, comprising a housing, an outer wall of which is mounted a protective shell, the protective shell housing a chopping assembly for chopping straw, a motor of the chopping assembly being connected to a drive shaft, and auxiliary gears being symmetrically fixed on both sides of the outer wall of the drive shaft;

[0009] The shell has a built-in material spreading assembly, the auxiliary gear of the material spreading assembly is meshed with the driving gear, the auxiliary gear is meshed with the material spreading gear, a material spreading shaft passes through the middle of the material spreading gear, and the outer wall of the material spreading shaft is equidistantly provided with material spreading holes;

[0010] The material spreading assembly also includes a material box, and a funnel-shaped hopper is equidistantly provided at the bottom of the material box. The bottom of the hopper is arc-shaped for fitting the material spreading shaft, and a material leakage port corresponding to the material spreading hole on the material spreading shaft is opened at the bottom of the hopper.

[0011] The housing is equipped with a jostling bucket for mixing materials. The jostling bucket is dustpan-shaped, a hinge is fixed to the bottom end of the jostling bucket, a paddle is provided on the short side of the jostling bucket, and a spring is provided on the side wall of the short side of the jostling bucket. The paddle is in intermittent contact with the rotation direction of the driving gear. The discharging direction of the chopping assembly and the spreading direction of the spreading assembly both correspond to the jostling bucket.

[0012] The other end of the driving shaft is connected to a layer-by-layer humidification sprinkler assembly through a bearing.

[0013] Preferably, the sprinkler assembly includes a water tank, pressure nozzles are equidistantly arranged at the bottom of the water tank, a water inlet is provided at the top of the water tank, a sealing plug is threadedly connected to the water inlet, the water tank is strip-shaped, and the water tank is located at the top of the shell and is placed diagonally.

[0014] Preferably, the other end of the drive shaft is connected to the non-circular point of the eccentric wheel through a bearing, the other side of the eccentric wheel is connected to an eccentric arm through a bearing, the eccentric arm is connected to an extrusion rod through a bearing, an airbag is fixed above the extrusion rod, the top of the airbag is connected to one end of the water tank through a one-way air valve, and a one-way air inlet nozzle is provided at the bottom of the airbag.

[0015] Preferably, cutting knives are equidistantly arranged on the driving shaft portion between the two groups of driving gears, and the protective shell is provided with openings corresponding to the cutting knife areas.

[0016] Preferably, both sides of the opening of the protective shell are connected with a turning bucket through a rotating shaft. The turning bucket turns downward to guide the straw into the chopping assembly, and the turning bucket turns upward to cover the opening.

[0017] Preferably, a glass plate is provided on the side wall opposite to the housing with the protective shell, and a side door is provided on a cross section of one side of the housing.

[0018] Preferably, a turning component for turning the straw mixture is provided at the bottom of the shell.

[0019] Preferably, the flipping shaft of the flipping assembly slides through the shell, the flipping shaft is located inside the shell and is equidistantly provided with flipping shovels, the flipping shaft is located at one end outside the shell and is provided with a limiting ring, the flipping shaft is located outside the shell and is connected to a rocker arm at the other end, the other end of the rocker arm is connected to a crank, and the flipping shaft can slide back and forth.

[0020] Compared with related technologies, the energy-saving straw composting and fermentation device provided by the present invention has the following beneficial effects:

[0021] The hopper is driven by the gear of the driving mechanism, and the gear of the driving mechanism is rotated to move the gear of the driving mechanism so that the hopper is moved along the hopper surface, and the hopper is moved along the hopper surface, and the hopper is moved along the hopper surface, and the hopper is moved along the hopper surface, and the hopper is moved along the hopper surface, and the hopper is moved along the hopper surface, and the hopper is moved along the hopper surface, and the hopper is moved along the hopper surface

[0022] 2. In the process of chopping, the present invention pushes the extrusion rod through the eccentric rotation of the eccentric shaft and the eccentric arm to squeeze the airbag, and the airbag continuously adds gas to the water tank, so that the internal pressure of the water tank in a closed state continues to increase, and then the pressure nozzle at the bottom of the water tank sprays water when the pressure inside the water tank increases. Since the water flow will eventually flow to the bottom, a certain air space is reserved in the water tank. At the initial stage of starting the chopping component, the internal pressure of the water tank is insufficient and the water cannot be sprayed out temporarily, which can avoid the bottom of the pile from being too wet due to watering and affecting fermentation. In the process of continuous stacking, watering is carried out layer by layer, so that the straw, auxiliary fermentation materials and water are in contact more evenly, which is conducive to more uniform fermentation of each layer of the stacked straw.

[0023] 3. The present invention uses a turning assembly to drive the rocker arm to rotate through the crank handle, and then the turning shaft drives the turning shovel to turn the accumulated straw in the shell. By pushing the turning shaft back and forth, the position of the turning shovel in the shell can be adjusted, which is convenient for turning the accumulated straw without opening the side door to destroy the anaerobic environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall exterior of a shell of an energy-saving straw composting and fermentation device provided by the present invention;

[0025] Figure 2 A schematic diagram of a chopping assembly of an energy-saving straw composting and fermentation device provided by the present invention;

[0026] Figure 3 A schematic diagram of a watering assembly of an energy-saving straw composting and fermentation device provided by the present invention;

[0027] Figure 4 A schematic diagram of the connection structure of a water tank and an air bag of an energy-saving straw composting and fermentation device provided by the present invention;

[0028] Figure 5 A schematic diagram of a spreading component of an energy-saving straw composting and fermentation device provided by the present invention;

[0029] Figure 6 A schematic diagram of a feed box of an energy-saving straw composting and fermentation device provided by the present invention;

[0030] Figure 7 A schematic diagram of a turning assembly of an energy-saving straw composting and fermentation device provided by the present invention;

[0031] Figure 8 This is a schematic diagram of the other side of the exterior of the shell of an energy-saving straw composting and fermentation device provided by the present invention.

[0032] Figure numerals: 1, shell; 11, side door; 12, glass plate; 2, flip bucket; 21, rotating shaft; 3, shredding assembly; 31, cutting knife; 32, driving gear; 33, driving shaft; 34, motor; 35, bumping bucket; 36, paddle; 37, spring; 4, protective shell; 5, sprinkler assembly; 51, eccentric wheel; 52, eccentric arm; 53, extrusion rod; 54, air bag; 541, one-way air inlet nozzle; 55, water tank; 551, pressure nozzle; 56, water inlet; 561, sealing plug; 6, spreading assembly; 61, material box; 62, leakage hopper; 621, leakage port; 63, spreading hole; 64, spreading gear; 65, spreading shaft; 66, auxiliary gear; 7, flipping assembly; 71, rocker arm; 72, flip shaft; 73, flipping shovel; 74, limiting ring; 75, crank DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention. Example 1

[0034] An energy-saving straw composting and fermentation device includes a housing 1. The housing 1 is a rectangular parallelepiped. A protective shell 4 is installed on the outer wall of the housing 1. The protective shell 4 has a built-in chopping assembly 3 for chopping straw. The motor 34 of the chopping assembly 3 is connected to a drive shaft 33. The motor 34 is started to drive the drive shaft 33 to rotate. Drive gears 32 are symmetrically fixed on both sides of the outer wall of the drive shaft 33. When the drive shaft 33 rotates, the drive gear 32 is also driven to rotate. The two drive gears rotate at the same frequency.

[0035] Cutting knives 31 are equidistantly arranged on the driving shaft 33 between the two groups of driving gears 32. The rotation of the driving shaft 33 drives the multiple cutting knives 31 to rotate. The protective shell 4 is provided with an opening corresponding to the cutting knife 31 area, and the straw is fed through the opening into the multiple rotating cutting knives 31 for segmented processing.

[0036] The housing 1 has a built-in material spreading assembly 6. The auxiliary gear 66 of the material spreading assembly 6 is meshed with the driving gear 32. The auxiliary gear 66 is meshed with the material spreading gear 64. The rotation of the driving gear 32 drives the auxiliary gear 66 and the material spreading gear 64 to rotate in turn. A material spreading shaft 65 passes through the middle of the material spreading gear 64. The outer wall of the material spreading shaft 65 is equidistantly provided with material spreading holes 63. Two material spreading holes 63 are symmetrically provided on the same ring of the material spreading shaft 65.

[0037] The spreading assembly 6 also includes a material box 61, which is filled with a mixture of bacteria and rice bran, wheat bran or corn flour. The bacteria are the core of straw fermentation and can decompose cellulose, hemicellulose and lignin in the straw. Funnel-shaped hoppers 62 are equidistantly arranged at the bottom of the material box 61. The bottom of the hopper 62 is arc-shaped for fitting the spreading shaft 65. A leakage port 621 corresponding to the spreading hole 63 on the spreading shaft 65 is opened at the bottom of the hopper 62. The auxiliary fermentation material in the material box 61 enters the leakage port 621 corresponding to the spreading hole 63 of the spreading shaft 65 under the guidance of the inclined surface of the hopper 62;

[0038] When the motor 34 of the chopping assembly 3 is started, the drive shaft 33 drives the cutting blade 31 to rotate and cut the straw into segments, and the cut straw segments fall into the bumping bucket 35. At the same time, the driving gear 32 drives the auxiliary gear 66 and the spreading gear 64 to rotate in sequence, and the spreading gear 64 drives the spreading shaft 65 to rotate. The auxiliary fermentation material in the material box 61 is guided by the inclined surface of the hopper 62 and enters the scattering hole 63 of the spreading shaft 65 through the leakage port 621;

[0039] The housing 1 is equipped with a jostling bucket 35 for mixing. The jostling bucket 35 is in the shape of a dustpan, and a hinge is fixed to the bottom end of the jostling bucket 35. The jostling bucket 35 nods with the hinge as the origin. A paddle 36 is provided on the short side of the jostling bucket 35, and a spring 37 is provided on the side wall of the short side of the jostling bucket 35. The paddle 36 forms intermittent contact with the rotation direction of the driving gear 32. At the moment when the outer wall of the driving gear 32 contacts the paddle 36, the paddle 36 is quickly pushed in the rotation direction of the driving gear 32 to form a nodding action. At the same time, the jostling bucket 35 is reset under the action of the spring 37. The discharging direction of the chopping assembly 3 and the spreading direction of the spreading assembly 6 both correspond to the jostling bucket 35.

[0040] During the rotation of the spreading shaft 65, the straw naturally falls from the spreading hole 63 to the bumping bucket 35 under the action of gravity, and the cut straw and auxiliary fermentation materials enter the bumping bucket 35 at the same time. Since the paddle 36 of the bumping bucket 35 is in contact with the rotation direction of the driving gear 32, the rotational force of the driving gear 32 pushes the paddle 36 to nod with the hinge as the center point, and resets under the action of the spring 37, thereby causing the bumping bucket 35 to vibrate in a nodding manner, mixing and dispersing the cut straw and auxiliary fermentation materials, so that the two enter the shell 1 more dispersedly, and will not form accumulation on one side. The three processes of chopping, quantitative mixing and dispersing are completed by a single power source.

[0041] The other end of the driving shaft 33 is connected to a layer-by-layer humidification sprinkler assembly 5 through a bearing.

[0042] The watering assembly 5 includes a water tank 55 , and pressure nozzles 551 are equidistantly arranged at the bottom of the water tank 55 , which mainly consists of a nozzle head, a nozzle body and a connection interface;

[0043] The nozzle head is in direct contact with the water flow, and the nozzle body is the part that connects the nozzle head and the rear end interface. There is usually a flow channel or channel inside to guide the water flow from the input end to the nozzle head. The connecting interface is located at the rear end of the nozzle body and is directly connected to the water source in the water tank 55.

[0044] A water inlet 56 is provided on the top of the water tank 55, and water is added into the water tank 55 through the water inlet 56. The water inlet 56 is threadedly connected to a sealing plug 561, and the water inlet 56 is threadedly connected to the sealing plug 561 so that the water tank 55 is in a closed state. The water tank 55 is strip-shaped and is located at the top of the shell 1 in a diagonal arrangement. The diagonally arranged water tank 55 is relatively uniform during the watering process.

[0045] The other end of the drive shaft 33 is connected to the non-circular point of the eccentric wheel 51 through a bearing, and the other side of the eccentric wheel 51 is connected to an eccentric arm 52 through a bearing. The drive shaft 33 drives the eccentric arm 52 to swing during the rotation, and the eccentric arm 52 is connected to an extrusion rod 53 through a bearing. The extrusion rod 53 is located in a limiting ring 74. Under the action of the eccentric arm 52, the extrusion rod 53 slides up and down in the limiting ring 74, and an airbag 54 is fixed above the extrusion rod 53. The top of the airbag 54 is connected to one end of the water tank 55 through a one-way air valve, and a one-way air inlet nozzle 541 is provided at the bottom of the airbag 54. External gas enters the airbag 54 through the one-way air inlet nozzle 541, and under the action of the up and down squeezing of the extrusion rod 53, the gas inside the airbag 54 is sent into the water tank 55, thereby increasing the internal pressure of the water tank 55, and then under the action of the pressure, water is ejected from the pressure nozzle 551.

[0046] During the chopping process, the eccentric shaft rotates eccentrically and the eccentric arm 52 pushes the squeezing rod 53 to squeeze the air bag 54. The air bag 54 continuously adds gas to the water tank 55, so that the internal pressure of the water tank 55 in the closed state continues to increase, and then the pressure nozzle 551 at the bottom of the water tank 55 sprays water when the pressure inside the water tank 55 increases. Since the water flow will eventually flow to the bottom, a certain amount of air space is reserved in the water tank 55. At the initial stage of starting the chopping component 3, the internal pressure of the water tank 55 is insufficient and the water cannot be sprayed out temporarily. This can avoid the bottom of the pile being too wet due to water sprinkling and affecting fermentation. In the process of continuous stacking, watering is carried out layer by layer, so that the straw, auxiliary fermentation materials and water are in contact more evenly.

[0047] The two sides of the opening of the protective shell 4 are connected with a turning bucket 2 through a rotating shaft 21. The turning bucket 2 turns down to guide the straw into the chopping assembly 3, and the turning bucket 2 turns up to cover the opening.

[0048] After the turning bucket 2 is turned up, the opening can be closed by an external baffle, so that the shell 1 is in a relatively sealed state, and an anaerobic environment is formed inside the shell 1, which is conducive to the fermentation of straw.

[0049] A glass plate 12 is provided on the opposite side wall of the shell 1 with the protective shell 4. The ultraviolet rays in the sunlight can stimulate the metabolic activity of microorganisms through the glass plate 12, thereby increasing their growth and reproduction speed. The sunlight can provide suitable temperature and lighting conditions, which are conducive to the growth and reproduction of microorganisms, thereby accelerating the decomposition process of straw; a side door 11 is provided on the cross section of one side of the shell 1, and when fertilizer needs to be taken, it is completed through the side door 11.

[0050] The bottom of the housing 1 is provided with a turning component 7 for turning the straw mixture.

[0051] The flipping shaft 72 of the flipping assembly 7 slides through the shell 1. The flipping shaft 72 is located inside the shell 1 and is equidistantly provided with flipping shovels 73. A limiting ring 74 is provided at one end of the flipping shaft 72 outside the shell 1. The other end of the flipping shaft 72 is located outside the shell 1 and is connected to a rocker arm 71. The other end of the rocker arm 71 is connected to a crank 75. The flipping shaft 72 can slide back and forth.

[0052] The crank arm 71 is driven to rotate by the crank handle 75, and the turning shaft 72 drives the turning shovel 73 to turn the accumulated straw in the shell 1. By pushing the turning shaft 72 back and forth, the position of the turning shovel 73 in the shell 1 can be adjusted to facilitate turning the accumulated straw. There is no need to open the side door 11, and the anaerobic environment of the shell 1 will not be destroyed.

[0053] The gear ratio of the driving gear 32 and the spreading gear 64 can be set according to the mixing ratio. In the production of organic fertilizer, straw usually needs to be mixed with other organic waste for fermentation. The carbon-nitrogen ratio of these mixed materials is generally required to be around 25-30:1.

[0054] For example, the mixing ratio of pig manure and wheat straw powder is about 10:3, the mixing ratio of cow dung and wheat straw powder is about 3:2, and the mixing ratio of distiller's grains and wheat straw powder is 2:1. Adjustments can be made based on the local agricultural environment.

[0055] Working principle: Place the glass plate 12 of the housing 1 facing the sun, and turn the turning bucket 2 downward via the rotating shaft 21 to guide the straw into the chopping assembly 3;

[0056] The straw is guided by the tipping bucket 2 and contacts the chopping assembly 3 through the opening of the protective shell 4. When the motor 34 of the chopping assembly 3 is started, the driving shaft 33 drives the cutting knife 31 to rotate to cut the straw into segments, and then the cut straw falls into the bumping bucket 35. At the same time, the auxiliary gear 66 and the spreading gear 64 are driven to rotate by the driving gear 32 in turn, and the spreading shaft 65 is driven to rotate by the spreading gear 64. The auxiliary fermentation material in the material box 61 enters the spreading hole 63 of the spreading shaft 65 corresponding to the leakage port 621 under the guidance of the inclined surface of the leakage hopper 62. During the rotation of the spreading shaft 65, the straw naturally falls from the spreading hole 63 to the bumping bucket 35 under the action of gravity. The cut straw and the auxiliary fermentation material enter the bumping bucket 35 at the same time. Since the paddle 36 of the bumping bucket 35 is in contact with the rotation direction of the driving gear 32, the rotational force of the driving gear 32 pushes the paddle 36 to nod with the hinge as the center point, and resets under the action of the spring 37, thereby causing the bumping bucket 35 to vibrate in a nodding manner, mixing and dispersing the cut straw and the auxiliary fermentation material, so that the two are more dispersed and enter the housing 1;

[0057] During the chopping process, the eccentric shaft rotates eccentrically and the eccentric arm 52 pushes the squeezing rod 53 to squeeze the air bag 54. The air bag 54 continuously adds gas to the water tank 55, so that the internal pressure of the water tank 55 in the closed state continues to increase, and then the pressure nozzle 551 at the bottom of the water tank 55 sprays water when the pressure inside the water tank 55 increases. Since the water flow will eventually flow to the bottom, a certain amount of air space is reserved in the water tank 55. At the initial start-up of the chopping component 3, the internal pressure of the water tank 55 is insufficient and the water cannot be sprayed out temporarily, which can avoid the bottom of the pile being too wet due to water spraying and affecting fermentation. In the process of continuous stacking, watering is carried out layer by layer, so that the straw, auxiliary fermentation materials and water are in contact more evenly.

[0058] After the straw composting is completed, the motor 34 is turned off, and the turning bucket 2 is turned up by the hinge to cover the opening. After the turning bucket 2 is turned up, the opening can be closed by the external baffle, so that the housing 1 is in a relatively sealed state, so that an anaerobic environment is formed inside the housing 1;

[0059] The compost is regularly turned over. The crank handle 75 drives the rocker arm 71 to rotate, and the turning shaft 72 drives the turning shovel 73 to turn the accumulated straw in the housing 1. By pushing the turning shaft 72 back and forth, the position of the turning shovel 73 in the housing 1 can be adjusted to turn the accumulated straw.

[0060] Get fertilizer by opening side door 11.

[0061] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An energy-saving straw composting and fermentation device, comprising a housing (1), an outer wall of the housing (1) being provided with a protective shell (4), the protective shell (4) being provided with a chopping assembly (3) for chopping straw, a motor (34) of the chopping assembly (3) being connected to a drive shaft (33), and characterized in that: The driving gears (32) are symmetrically fixed on both sides of the outer wall of the driving shaft (33); The housing (1) has a built-in material spreading assembly (6), an auxiliary gear (66) of the material spreading assembly (6) meshes with a driving gear (32), the auxiliary gear (66) meshes with a material spreading gear (64), a material spreading shaft (65) passes through the middle of the material spreading gear (64), and the outer wall of the material spreading shaft (65) is provided with material spreading holes (63) at equal intervals; The material spreading assembly (6) further comprises a material box (61), wherein a funnel-shaped hopper (62) is equidistantly provided at the bottom of the material box (61), the bottom of the hopper (62) being arc-shaped for fitting the material spreading shaft (65), and a material leakage port (621) corresponding to the material spreading hole (63) on the material spreading shaft (65) is provided at the bottom of the hopper (62); The housing (1) is equipped with a jolting bucket (35) for mixing materials. The jolting bucket (35) is dustpan-shaped. A hinge is fixed to the bottom end of the jolting bucket (35). A paddle (36) is provided on the short side of the jolting bucket (35). A spring (37) is provided on the side wall of the short side of the jolting bucket (35). The paddle (36) forms intermittent contact with the driving gear (32) in the direction of rotation. The discharging direction of the chopping assembly (3) and the spreading direction of the spreading assembly (6) both correspond to the jolting bucket (35). The other end of the driving shaft (33) is connected to a layer-by-layer humidification sprinkler assembly (5) via a bearing; The watering assembly (5) comprises a water tank (55), the bottom of the water tank (55) is provided with pressure nozzles (551) at equal intervals, the top of the water tank (55) is provided with a water inlet (56), the water inlet (56) is threadedly connected to a sealing plug (561), the water tank (55) is strip-shaped, and the water tank (55) is located at the top of the housing (1) and is placed diagonally; The other end of the driving shaft (33) is connected to the non-circular point of the eccentric wheel (51) through a bearing, the other side of the eccentric wheel (51) is connected to an eccentric arm (52) through a bearing, the eccentric arm (52) is connected to an extrusion rod (53) through a bearing, an air bag (54) is fixed above the extrusion rod (53), the top of the air bag (54) is connected to one end of the corresponding water tank (55) through a one-way air valve, and a one-way air inlet nozzle (541) is provided at the bottom of the air bag (54); The bottom of the housing (1) is provided with a turning component (7) for turning the straw mixture; The flipping shaft (72) of the flipping assembly (7) slides through the shell (1); the flipping shaft (72) is located inside the shell (1) and is equidistantly provided with a flipping shovel (73); one end of the flipping shaft (72) located outside the shell (1) is provided with a limit ring (74); the other end of the flipping shaft (72) located outside the shell (1) is provided with a rocker arm (71); the other end of the rocker arm (71) is connected to a crank handle (75); and the flipping shaft (72) can slide forward and backward.

2. An energy-saving straw composting and fermentation device according to claim 1, characterized in that: Cutting knives (31) are equidistantly arranged on the portion of the driving shaft (33) between the two groups of driving gears (32), and the protective shell (4) is provided with an opening corresponding to the cutting knives (31) area.

3. An energy-saving straw composting and fermentation device according to claim 2, characterized in that: The opening of the protective shell (4) is connected to a turning bucket (2) on both sides via a rotating shaft (21); the turning bucket (2) turns downward to guide the straw into the chopping assembly (3); and the turning bucket (2) turns upward to cover the opening.

4. An energy-saving straw composting and fermentation device according to claim 1, characterized in that: A glass plate (12) is provided on the opposite side wall of the housing (1) having the protective shell (4), and a side door (11) is provided on a cross section of one side of the housing (1).

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