Biological organic fertilizer fermentation device

Abstract

The invention discloses a bio-organic fertilizer fermentation device, and relates to the technical field of organic fertilizer fermention.The bio-organic fertilizer fermentation device comprises a fermentation tank, a heat conductor is fixed to an inner cavity of the fermentation tank, a mounting cavity is formed in the middle of the bottom face of the heat conductor, a double-shaft motor is fixed to the inner wall of the mounting cavity, and the bio-organic fertilizer fermentation device further comprises a grinding assembly in transmission connection with an upper rotating shaft of the double-shaft motor; the turning mechanism is in transmission connection with a lower rotating shaft of the double-shaft motor. According to the bio-organic fertilizer fermentation device, through the arrangement of the material turning mechanism and the spraying mechanism, when a double-shaft motor works, an auger and a sleeve can be driven to rotate at the same time, and due to the fact that the auger and the sleeve have the rotating speed difference, raw materials in a material collecting cavity T can be conveyed to the upper end of the sleeve and discharged to the position above a conical material scattering disc through a discharging hole to be scattered; and meanwhile, the raw materials are repeatedly scattered and flow in the material overturning cavity from bottom to top, and the raw materials can be overturned from bottom to top.

Description

Technical Field

[0001] The invention relates to the technical field of organic fertilizer fermentation, in particular to a biological organic fertilizer fermentation device. Background Art

[0002] Bio-organic fertilizer is fermented by mixing related microorganisms and organic waste. Organic waste mainly includes animal and plant residues, livestock and poultry manure and crop straw. Fermentation bacteria mainly include aerobic thermophilic bacteria, Bacillus and yeast. The fermentation bacteria are made into bacterial liquid and mixed evenly with organic waste. During fermentation, grass seeds, insect eggs and nematodes can be inactivated to reduce the impact on the soil environment. Bio-organic fertilizer has complete nutritional elements, which can provide comprehensive nutrients for crops, improve soil physical and chemical properties, and slow down soil compaction.

[0003] In the current biological organic fertilizer fermentation technology, aerobic fermentation needs to provide sufficient oxygen supply for the fermentation raw materials during the fermentation process, so it is necessary to keep the fermentation raw materials in a loose state so that the raw materials can be fully contacted with oxygen during the fermentation process, and it is also necessary to keep the raw materials at a more reasonable humidity to ensure the fermentation rate. Therefore, in the process of mixing the loose fermentation raw materials and the bacterial liquid, the fermentation raw materials are prone to agglomeration, which will affect the oxygen supply during the fermentation process, and it is also difficult to mix the bacterial liquid with the fermentation raw materials, thereby affecting the fermentation rate of organic fertilizer. Therefore, a biological organic fertilizer fermentation device is proposed herein. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a biological organic fertilizer fermentation device, comprising a fermentation tank, a heat conductor is fixed in the inner cavity of the fermentation tank, an installation cavity is opened in the middle of the bottom surface of the heat conductor, and a dual-axis motor is fixed on the inner wall of the installation cavity.

[0005] The top of the fermentation tank is fixedly connected to a feed hopper, and the top surface of the heat conductor is provided with an annular sliding groove so that the cross-section of the top of the heat conductor is W-shaped, and the bottom end of the annular sliding groove is provided with a plurality of discharge holes, and the plurality of discharge holes all penetrate to the bottom surface of the heat conductor, and a discharge cavity is formed between the top surface of the heat conductor and the inner top wall of the fermentation tank, and a grinding assembly connected to the upper rotating shaft of the double-axis motor is provided inside the discharge cavity for grinding the raw materials at the feed hopper.

[0006] The material grinding assembly includes a lower hopper fixedly connected to the inner top wall of the fermentation tank and a material spreading rod fixedly installed on the outer surface of the upper rotating shaft of the dual-axis motor. The top of the lower hopper is connected to the bottom of the feed hopper. The interior of the lower hopper is provided with a material grinding cone that matches its side wall. The bottom surface of the material grinding cone is fixedly connected to the top end of the upper rotating shaft of the dual-axis motor. The conical surface of the top of the material grinding cone is provided with arc-shaped convex patterns in a circular array. The material spreading rod is L-shaped, and the material spreading rod slides in contact with the bottom surface of the annular sliding trough.

[0007] A material turning cavity is formed between the bottom surface of the heat conductor and the inner bottom wall of the fermentation tank, and the bottom of the material turning cavity is funnel-shaped. A material collecting cavity connected to the bottom of the material turning cavity is provided on the bottom wall of the fermentation tank.

[0008] Furthermore, an observation window is provided on the outer wall of the fermentation tank, and a movable door for sealing the collecting cavity is provided at the bottom end of the fermentation tank.

[0009] The interior of the material turning cavity is provided with a material turning mechanism which is transmission-connected to the lower rotating shaft of the double-shaft motor. The material turning mechanism is used for conveying the raw materials which slide into the collecting cavity to the upper part of the material turning cavity and scattering them.

[0010] The material turning mechanism includes an auger fixedly connected to the bottom end of the lower rotating shaft of the dual-axis motor and a reduction gearbox fixedly connected to the bottom of the heat conductor, the input end of the reduction gearbox is transmission-connected to the lower rotating shaft of the dual-axis motor, a limiting cylinder is fixed to the bottom surface of the reduction gearbox, the outer surface of the auger is sleeved with a sleeve, the top end of the sleeve is rotatably sleeved on the outer surface of the limiting cylinder, the top end of the sleeve is fixedly sleeved with a gear ring, a gear meshing with the gear ring is fixed on the output shaft of the reduction gearbox, the bottom ends of the auger and the sleeve extend to the inside of the collecting chamber T, and the bottom end of the auger extends to below the sleeve.

[0011] Furthermore, the bottom end of the sleeve is rotatably sleeved with a limiting frame, and the limiting frame is fixedly connected to the inner wall of the material collecting cavity. A set of scraper frames are fixed on the outer surface of the sleeve, and the bottom of the scraper frame is slidably fitted with the bottom wall of the material turning cavity.

[0012] The upper section of the sleeve is provided with discharge holes in a circular array, the outer surface of the sleeve is fixedly sleeved with a conical material spreading plate, and the conical material spreading plate is located below the discharge holes, and the outer conical surface of the conical material spreading plate is fixedly provided with material shifting rods in a circular array.

[0013] A spray mechanism is provided on the bottom surface of the heat conductor, and the spray mechanism includes a rubber column fixed on the bottom of the heat conductor, a nozzle is fixed on the bottom end of the rubber column, and the nozzle is located obliquely above the outer side of the conical spreading plate. The nozzle is connected to the external bacteria liquid tank through a hose, and the bacteria liquid tank conveys the bacteria liquid to the nozzle for spraying through a high-pressure pump arranged inside. A transmission rod is fixed on the bottom end of the rubber column, and the bottom end of the transmission rod is in sliding contact with the outer conical surface of the conical spreading plate. When the conical spreading plate and the material removing rod rotate together, the material removing rod can touch the bottom end of the transmission rod to cause the transmission rod and the nozzle to shake together.

[0014] Furthermore, the interior of the heat conductor and the bottom wall of the fermentation tank are inlaid with spirally distributed heat pipes, the liquid inlet of the heat pipes is connected to the external high-temperature medium or low-temperature medium through a two-way solenoid valve, and a temperature sensor is installed at the bottom of the heat conductor.

[0015] Furthermore, an air inlet pipe is arranged around the outer wall of the fermentation tank, and the position of the air inlet pipe corresponds to the position of the heat conductor. The air inlet end of the air inlet pipe is connected to an external nitrogen source through an air inlet valve, and the air outlet end of the air inlet pipe extends to the interior of the material turning chamber.

[0016] Compared with the prior art, the bio-organic fertilizer fermentation device has the following beneficial effects:

[0017] 1. The bio-organic fertilizer fermentation device, through the material turning mechanism and the spray mechanism, can simultaneously drive the auger and the sleeve to rotate when the dual-axis motor is working. Because the auger and the sleeve have a speed difference, the raw materials in the collecting chamber T can be transported to the upper end of the sleeve, and discharged to the top of the conical spreading plate through the discharge hole, and the raw materials are thrown to avoid the agglomeration of the raw materials. At the same time, the raw materials are repeatedly thrown and flowed from bottom to top in the turning chamber, and the raw materials can be turned from bottom to top. In addition, through the spray mechanism, when the raw materials are thrown by the conical spreading plate, the bacterial liquid is sprayed on the raw materials in the throwing process through the nozzle, so that the organic fertilizer raw materials and the bacterial liquid are fully mixed, and the raw materials are prevented from agglomerating due to a large amount of water. When the conical spreading disc and the material shifting rod rotate together, the material shifting rod can touch the bottom end of the transmission rod to make the transmission rod vibrate. Under the elastic effect of the rubber column, the nozzle also vibrates, which can increase the spray range and spray effect of the transmission rod, further ensure the mixing effect of the organic fertilizer raw materials and the bacterial solution, and ensure the fermentation rate of the organic fertilizer.

[0018] Second, the bio-organic fertilizer fermentation device, through the material grinding component, when the dual-axis motor is working, drives the material grinding cone to rotate, and can grind the raw materials falling from the feed hopper, which is conducive to the mixing of the raw materials and avoids the agglomeration of the raw materials. At the same time, it drives the material spreading rod to rotate in the annular sliding groove set on the top surface of the heat conductor, scrapes the ground raw materials into the discharge hole for discharge, so that the raw materials are dispersed and fall to the bottom of the fermentation tank. In the process of the raw materials being dispersed and falling through the discharge hole, the raw materials in the falling process can also be sprayed by the nozzle to mix the raw materials with the bacterial solution, further improving the mixing effect of the organic fertilizer raw materials and the bacterial solution.

[0019] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the fermentation tank in the present invention;

[0021] Figure 2 It is a front cross-sectional view of the internal structure of the fermentation tank in the present invention;

[0022] Figure 3 It is a cross-sectional view of the internal structure of the reduction box and the sleeve in the present invention;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the material turning mechanism in the present invention when viewed from above;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the material turning mechanism in the present invention from a top view;

[0025] Figure 6 It is a cross-sectional view from a top view of the internal structure of the fermentation tank in the present invention;

[0026] Figure 7 It is a cross-sectional view from an upward perspective of the internal structure of the fermentation tank in the present invention.

[0027] In the figure:

[0028] 1. Fermentation tank; 2. Feed hopper;

[0029] 3. Spray mechanism; 31. Rubber column; 32. Spray head; 33. Transmission rod;

[0030] 4. Observation window; 5. Heat conductor; 6. Feeding hole; 7. Dual-axis motor;

[0031] 8. material grinding assembly; 81. material lowering hopper; 82. material grinding cone; 83. arc-shaped convex pattern; 84. material spreading rod;

[0032] 9. Material turning mechanism; 91. Auger; 92. Speed ​​reducer; 93. Limiting cylinder; 94. Sleeve; 95. Gear ring; 96. Gear; 97. Material discharge hole; 98. Conical material spreading plate; 99. Material shifting rod; 910. Material scraping frame; 911. Limiting frame;

[0033] 10. Intake pipe; 11. Intake valve;

[0034] 12. Heat conduction pipe; 121. Dual-way solenoid valve;

[0035] 13. Temperature sensor;

[0036] R, material discharge cavity; S, material turning cavity; T, material collection cavity. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1 to Figure 7 , the present invention provides the following technical solutions:

[0039] A biological organic fertilizer fermentation device comprises a fermentation tank 1, a heat conductor 5 is fixed in the inner cavity of the fermentation tank 1, a mounting cavity is opened in the middle of the bottom surface of the heat conductor 5, and a double-axis motor 7 is fixed on the inner wall of the mounting cavity.

[0040] The top of the fermentation tank 1 is fixedly connected with a feed hopper 2, and the fermentation raw materials of the organic fertilizer enter the fermentation tank 1 through the feed hopper 2. The top surface of the heat conductor 5 is provided with an annular sliding groove, so that the cross-section of the top of the heat conductor 5 is W-shaped (such as Figure 2 and Figure 6 As shown in the figure, a plurality of discharge holes 6 are provided at the bottom end of the annular sliding groove, and the plurality of discharge holes 6 all penetrate to the bottom surface of the heat conductor 5.

[0041] A material discharge chamber R is formed between the top surface of the heat conductor 5 and the inner top wall of the fermentation tank 1 , and a material grinding assembly 8 is arranged inside the material discharge chamber R and is transmission-connected to the upper rotating shaft of the double-axis motor 7 for grinding the raw materials at the feed hopper 2 .

[0042] The material grinding assembly 8 includes a lower hopper 81 fixedly connected to the inner top wall of the fermentation tank 1 and a material spreading rod 84 fixedly installed on the outer surface of the upper rotating shaft of the dual-axis motor 7. The top of the lower hopper 81 is connected to the bottom of the feed hopper 2. The interior of the lower hopper 81 is provided with a material grinding cone 82 that matches its side wall. The bottom surface of the material grinding cone 82 is fixedly connected to the top end of the upper rotating shaft of the dual-axis motor 7. The conical surface of the top of the material grinding cone 82 is provided with arc-shaped convex patterns 83 in a circular array. The material spreading rod 84 is L-shaped, and the material spreading rod 84 slides in contact with the bottom surface of the annular sliding groove.

[0043] The material grinding assembly 8 drives the material grinding cone 82 to rotate when the dual-axis motor 7 is working, and the raw materials falling from the feed hopper 2 can be crushed, which is beneficial to the mixing of the raw materials and avoids the agglomeration of the raw materials. At the same time, the material spreading rod 84 is driven to rotate in the annular sliding groove provided on the top surface of the heat conductor 5, and the crushed raw materials are scraped into the multiple material discharge holes 6 for discharge, so that the raw materials are dispersed and fall to the bottom of the fermentation tank 1.

[0044] Please refer to Figure 2 , Figure 6 and Figure 7 A material turning cavity S is formed between the bottom surface of the heat conductor 5 and the inner bottom wall of the fermentation tank 1, and the bottom of the material turning cavity S is funnel-shaped. A material collecting cavity T connected to the bottom of the material turning cavity S is provided on the bottom wall of the fermentation tank 1. The crushed raw materials fall into the material turning cavity S and the material collecting cavity T.

[0045] An observation window 4 is provided on the outer wall of the fermentation tank 1 for checking the fermentation status of the raw materials. A movable door for sealing the collecting cavity T is provided at the bottom of the fermentation tank 1. After the fermentation of the raw materials is completed, the movable door is opened for discharge.

[0046] The inside of the material turning chamber S is provided with a material turning mechanism 9 which is transmission-connected to the lower rotating shaft of the double-axis motor 7. The material turning mechanism 9 is used to transport the raw materials which slide into the collecting chamber T to the upper part of the material turning chamber S and scatter them. The specific scheme is shown below.

[0047] Please refer to Figure 2 to Figure 7 The material turning mechanism 9 includes an auger 91 fixedly connected to the bottom end of the lower rotating shaft of the dual-axis motor 7 and a reduction box 92 fixedly connected to the bottom of the heat conductor 5. The input end of the reduction box 92 is drivingly connected to the lower rotating shaft of the dual-axis motor 7. A limiting cylinder 93 is fixed on the bottom surface of the reduction box 92. A sleeve 94 is sleeved on the outer surface of the auger 91. The top end of the sleeve 94 is rotatably sleeved on the outer surface of the limiting cylinder 93. A gear ring 95 is fixedly sleeved on the top end of the sleeve 94. A gear 96 meshing with the gear ring 95 is fixed on the output shaft of the reduction box 92. The reduction box 92 is used to make the auger 91 and the sleeve 94 have a certain speed difference.

[0048] The bottom ends of the auger 91 and the sleeve 94 both extend to the interior of the collecting chamber T, and the bottom end of the auger 91 extends to below the sleeve 94 .

[0049] The upper section of the sleeve 94 is provided with an annular array of discharge holes 97, and a conical material spreading plate 98 is fixedly sleeved on the outer surface of the sleeve 94, and the conical material spreading plate 98 is located below the discharge holes 97, and a circular array of material dispensing rods 99 are fixedly provided on the outer conical surface of the conical material spreading plate 98.

[0050] Through the material turning mechanism 9, when the dual-axis motor 7 is working, the auger 91 and the sleeve 94 can be driven to rotate at the same time. Since the auger 91 and the sleeve 94 have a speed difference, the raw materials in the collecting cavity T can be transported to the upper end of the sleeve 94 and discharged to the top of the conical material spreading plate 98 through the discharge hole 97. Since the conical material spreading plate 98, the material lever 99 and the sleeve 94 rotate together, the raw materials can be thrown to avoid the raw materials from agglomerating. At the same time, the raw materials are repeatedly thrown and flowed from bottom to top in the material turning cavity S, and the raw materials can be turned from bottom to top.

[0051] As a further solution, the bottom end of the sleeve 94 is rotatably sleeved with a limiting frame 911, and the limiting frame 911 is fixedly connected to the inner wall of the material collection chamber T. The limiting frame 911 can be provided to limit the rotation of the sleeve 94 to prevent the bottom end of the sleeve 94 from shaking radially. A set of scraper frames 910 are fixed on the outer surface of the sleeve 94, and the bottom of the scraper frames 910 is slidably fitted with the bottom wall of the material turning chamber S to prevent the raw materials from accumulating on the bottom wall of the material turning chamber S, thereby further improving the stirring effect on the raw materials.

[0052] Please refer to Figure 2 A spray mechanism 3 is provided on the bottom surface of the heat conductor 5. The spray mechanism 3 includes a rubber column 31 fixed to the bottom of the heat conductor 5. A nozzle 32 is fixed to the bottom end of the rubber column 31. The nozzle 32 is located obliquely above the outer side of the conical spreading plate 98. The nozzle 32 is connected to the external bacteria liquid tank through a hose. The bacteria liquid tank transports the bacteria liquid to the nozzle 32 for spraying through a high-pressure pump arranged inside. A transmission rod 33 is fixed to the bottom end of the rubber column 31. The bottom end of the transmission rod 33 is in sliding contact with the outer conical surface of the conical spreading plate 98. When the conical spreading plate 98 and the material lever 99 rotate together, the material lever 99 can touch the bottom end of the transmission rod 33 to make the transmission rod 33 and the nozzle 32 shake together.

[0053] When the conical material spreading plate 98 is used to spread the raw materials, the bacterial liquid is sprayed on the raw materials in the spreading process through the nozzle 32, so that the organic fertilizer raw materials and the bacterial liquid are fully mixed, and the raw materials are prevented from agglomerating due to a large amount of water. When the conical material spreading plate 98 and the material shifting rod 99 rotate together, the material shifting rod 99 can touch the bottom end of the transmission rod 33 to make the transmission rod 33 shake, and under the elastic effect of the rubber column 31, the nozzle 32 also shakes together, which can increase the spray range and spray effect of the transmission rod 33, further ensure the mixing effect of the organic fertilizer raw materials and the bacterial liquid, and ensure the fermentation rate of the organic fertilizer.

[0054] In addition, when the raw materials crushed by the material grinding assembly 8 are dispersed and dropped through the material discharge hole 6, the raw materials in the falling process can also be sprayed by the nozzle 32 to mix the raw materials with the bacterial solution.

[0055] In addition, after the organic fertilizer raw material is fermented, the dual-axis motor 7 drives the auger 91 to rotate in the opposite direction, so that the material can be discharged quickly.

[0056] The inside of the heat conductor 5 and the bottom wall of the fermentation tank 1 are both inlaid with spirally distributed heat pipes 12, and the liquid inlet of the heat pipe 12 is connected to the external high-temperature medium or low-temperature medium through a two-way solenoid valve 121, which is used to increase or decrease the temperature in the fermentation tank 1. A temperature sensor 13 is installed at the bottom of the heat conductor 5 to collect temperature information in the fermentation tank 1. The temperature sensor 13 and the two-way solenoid valve 121 are both electrically connected to an external controller to combine with a corresponding control program to maintain a reasonable fermentation temperature in the fermentation tank 1 to avoid affecting the fermentation rate due to too high or too low fermentation temperature.

[0057] An air inlet pipe 10 is arranged around the outer wall of the fermentation tank 1, and the position of the air inlet pipe 10 corresponds to the position of the heat conductor 5, so as to improve the heat conduction effect between the air inlet pipe 10 and the fermentation tank 1, which is conducive to keeping the air in the air inlet pipe 10 at a reasonable temperature. The air inlet end of the air inlet pipe 10 is connected to the external air supply pump through the air inlet valve 11, and the air outlet end of the air inlet pipe 10 extends to the inside of the material turning chamber S. The air inlet pipe 10 is used to supply air to the inside of the material turning chamber S to provide oxygen for the fermentation process of the organic fertilizer raw material. At the same time, the use of the material turning mechanism 9 to scatter the organic fertilizer raw material is also conducive to fully contacting the raw material with oxygen and ensuring the fermentation rate of the raw material.

[0058] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A biological organic fertilizer fermentation device, comprising a fermentation tank (1), wherein a heat conductor (5) is fixed to the inner cavity of the fermentation tank (1), a mounting cavity is provided in the middle of the bottom surface of the heat conductor (5), and a dual-axis motor (7) is fixed to the inner wall of the mounting cavity, characterized in that: A material turning cavity (S) is formed between the bottom surface of the heat conductor (5) and the inner bottom wall of the fermentation tank (1), and the bottom of the material turning cavity (S) is funnel-shaped. A material collecting cavity (T) connected to the bottom of the material turning cavity (S) is provided on the bottom wall of the fermentation tank (1); The material turning chamber (S) is provided with a material turning mechanism (9) which is transmission-connected to the lower rotating shaft of the double-axis motor (7). The material turning mechanism (9) comprises an auger (91) fixedly connected to the bottom end of the lower rotating shaft of the double-axis motor (7) and a reduction box (92) fixedly connected to the bottom of the heat conductor (5). The input end of the reduction box (92) is transmission-connected to the lower rotating shaft of the double-axis motor (7). A limiting cylinder (93) is fixedly provided on the bottom surface of the reduction box (92). The outer surface of the sleeve (91) is sleeved with a sleeve (94), the top end of the sleeve (94) is rotatably sleeved on the outer surface of the limiting cylinder (93), the top end of the sleeve (94) is fixedly sleeved with a gear ring (95), and a gear (96) meshing with the gear ring (95) is fixed on the output shaft of the reduction box (92), the bottom ends of the auger (91) and the sleeve (94) both extend to the inside of the collecting cavity (T), and the bottom end of the auger (91) extends to the bottom of the sleeve (94); The upper section of the sleeve (94) is provided with discharge holes (97) in a circular array, the outer surface of the sleeve (94) is fixedly sleeved with a conical material spreading plate (98), and the conical material spreading plate (98) is located below the discharge holes (97), and the outer conical surface of the conical material spreading plate (98) is fixedly provided with material moving rods (99) in a circular array; The bottom surface of the heat conductor (5) is provided with a spray mechanism (3), the spray mechanism (3) comprising a rubber column (31) fixed to the bottom of the heat conductor (5), a nozzle (32) fixed to the bottom end of the rubber column (31), the nozzle (32) being located obliquely above the outer side of the conical material spreading disc (98), a transmission rod (33) fixed to the bottom end of the rubber column (31), the bottom end of the transmission rod (33) being in sliding contact with the outer conical surface of the conical material spreading disc (98), when the conical material spreading disc (98) and the material moving rod (99) rotate together, the material moving rod (99) can touch the bottom end of the transmission rod (33) to cause the transmission rod (33) and the nozzle (32) to vibrate together.

2. A biological organic fertilizer fermentation device according to claim 1, characterized in that: The bottom end of the sleeve (94) is rotatably sleeved on a limiting frame (911), and the limiting frame (911) is fixedly connected to the inner wall of the material collecting cavity (T).

3. A biological organic fertilizer fermentation device according to claim 1, characterized in that: A group of scraper frames (910) are fixed on the outer surface of the sleeve (94), and the bottom of the scraper frames (910) is slidably fitted with the bottom wall of the material turning cavity (S).

4. A biological organic fertilizer fermentation device according to claim 1, characterized in that: The top of the fermentation tank (1) is fixedly connected to a feed hopper (2), the top surface of the heat conductor (5) is provided with an annular sliding groove, the bottom end of the annular sliding groove is provided with a plurality of discharge holes (6), and the plurality of discharge holes (6) all penetrate to the bottom surface of the heat conductor (5), a discharge cavity (R) is formed between the top surface of the heat conductor (5) and the inner top wall of the fermentation tank (1), and a grinding assembly (8) connected to the upper rotating shaft of the double-axis motor (7) is provided inside the discharge cavity (R) for grinding the raw materials at the feed hopper (2).

5. A biological organic fertilizer fermentation device according to claim 4, characterized in that: The material grinding assembly (8) includes a lower hopper (81) fixedly connected to the inner top wall of the fermentation tank (1) and a material spreading rod (84) fixedly installed on the outer surface of the upper rotating shaft of the double-axis motor (7). The top of the lower hopper (81) is connected to the bottom of the feed hopper (2). The interior of the lower hopper (81) is provided with a material grinding cone (82) that matches its side wall. The bottom surface of the material grinding cone (82) is fixedly connected to the top of the upper rotating shaft of the double-axis motor (7). The conical surface of the top of the material grinding cone (82) is provided with arc-shaped convex patterns (83) in a circular array. The material spreading rod (84) is L-shaped, and the material spreading rod (84) slides in contact with the bottom surface of the annular sliding groove.

6. A biological organic fertilizer fermentation device according to claim 1, characterized in that: The interior of the heat conductor (5) and the bottom wall of the fermentation tank (1) are both inlaid with spirally distributed heat pipes (12); the liquid inlet of the heat pipe (12) is connected to an external high-temperature medium or low-temperature medium via a two-way solenoid valve (121); and a temperature sensor (13) is installed at the bottom of the heat conductor (5).

7. A biological organic fertilizer fermentation device according to claim 1, characterized in that: An air inlet pipe (10) is disposed around the outer wall of the fermentation tank (1), and the position of the air inlet pipe (10) corresponds to the position of the heat conductor (5). The air inlet end of the air inlet pipe (10) is connected to an external nitrogen source through an air inlet valve (11), and the air outlet end of the air inlet pipe (10) extends to the interior of the material turning chamber (S).

8. A biological organic fertilizer fermentation device according to claim 1, characterized in that: An observation window (4) is provided on the outer wall of the fermentation tank (1), and a movable door for sealing the collecting cavity (T) is provided at the bottom end of the fermentation tank (1).

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