Corn straw decomposing device suitable for northern cold areas

By designing a corn straw composting device suitable for cold northern regions and using a stirring and heating system to improve the straw composting efficiency, the problem of low straw composting efficiency in low temperature environments was solved, thus achieving efficient utilization of straw resources and environmental protection.

CN223304359UActive Publication Date: 2025-09-05SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422352215.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-09-05
Estimated Expiration
2034-09-26

AI Technical Summary

Technical Problem

In the cold northern regions, the composting efficiency of corn straw is low, and the existing treatment methods cause environmental pollution and waste of resources, making it difficult to effectively utilize straw resources in low-temperature environments.

Method used

A corn straw composting device was designed, which included a fermentation component, a heat preservation component and a discharge component. The stirring mechanism, temperature and humidity sensors and a heating system were used to improve the straw composting efficiency through stirring, heating and heat preservation measures.

Benefits of technology

Improve straw composting efficiency under low temperature environment, realize efficient composting and resource utilization of straw, reduce environmental pollution, and promote soil fertility and crop growth.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223304359U_ABST
    Figure CN223304359U_ABST
Patent Text Reader

Abstract

The utility model discloses a corn straw decomposing device suitable for northern cold areas, which comprises a fermentation component, the fermentation component comprises a tank body, the tank body is provided with a plurality of first feed ports and discharge ports, a stirring mechanism is arranged in the tank body, a first motor is arranged outside the tank body, and the first motor is in transmission connection with the stirring mechanism. A temperature and humidity sensor is fixedly connected in the tank body; the heat preservation assembly comprises a shell, the shell communicates with a water inlet pipe and a water outlet pipe, the water inlet pipe is provided with a first water pump, the water outlet pipe is provided with a second water pump, the water inlet pipe and the water outlet pipe communicate with a heating box, and heat-conducting media are contained in the heating box. The discharging assembly comprises a material receiving box, the material receiving box communicates with the discharging opening, a material throwing opening is formed in the material receiving box, and a second motor is fixedly connected to the material receiving box. According to the utility model, not only can corn straws be decomposed, but also the heat of the tank body can be preserved in the decomposing process, so that the decomposing process is kept at a proper temperature, the progress of the decomposing work is accelerated, and the use is more convenient.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of straw composting equipment, in particular to a corn straw composting device suitable for cold areas in northern China. Background Art

[0002] Corn, a staple food crop, faces a pressing challenge in the cool, cold regions of northern China. Traditional methods of straw disposal, such as burning and random stacking, not only pollute the environment but also waste valuable agricultural resources. In recent years, with the growing focus on sustainable agricultural development and environmental awareness, straw resource utilization has become a research hotspot.

[0003] In the process of straw resource utilization, straw composting is a key link. Composted straw is rich in organic matter and can be used as high-quality organic fertilizer to promote soil fertility and crop growth. However, the climatic conditions in the cold northern regions pose a challenge to the straw composting process. Microbial activity is reduced in low temperature environments, resulting in low straw composting efficiency.

[0004] Therefore, a corn straw composting device suitable for the cold and cool areas in the north is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a corn straw composting device suitable for cold areas in the north, so as to solve the problems existing in the above-mentioned prior art, improve the heat preservation capacity of the corn straw composting process, and improve the favorable conditions for straw composting.

[0006] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a corn straw composting device suitable for use in cold and cool areas in northern China, comprising:

[0007] A fermentation assembly, the fermentation assembly comprising a tank body, a plurality of first legs fixedly connected to the tank body, a plurality of first feed ports and discharge ports opened on the tank body, a plugging cover provided on the first feed port, a stirring mechanism provided in the tank body, a first motor provided outside the tank body, the first motor being transmission-connected to the stirring mechanism, a push-pull plate provided on the discharge port, a water injection pipe connected to the tank body, and a temperature and humidity sensor fixedly connected to the tank body;

[0008] The insulation component includes a shell, the shell is fixedly connected to the outer edge of the tank, the shell is connected to a water inlet pipe and a drain pipe, the water inlet pipe is installed with a first water pump, the drain pipe is installed with a second water pump, the water inlet pipe and the drain pipe are connected to a heating box, and the heating box is filled with a heat-conducting medium;

[0009] The material discharging assembly includes a material receiving box, the material receiving box is connected to the material discharging port, the material receiving box is provided with a material throwing port, a second motor is fixedly connected to the material receiving box, a material thrower is provided in the material receiving box, and the second motor is transmission-connected to the material thrower.

[0010] Preferably, a discharge pipe is fixedly connected to the discharge port, the discharge pipe is communicated with the material receiving box, the discharge pipe is fixedly connected to the material receiving box, the stirring mechanism includes a first rotating shaft, the first rotating shaft is rotatably connected to the tank body, the first rotating shaft extends out of the tank body, the first motor is fixedly connected to the first rotating shaft, the first motor is fixedly connected to the tank body through a first connecting plate, a plurality of stirring rods and spiral plates are fixedly connected to the first rotating shaft, the spiral plate is located in the discharge pipe, and the stirring rod is located in the tank body.

[0011] Preferably, a slot is provided on the discharge pipe, the push-pull plate is inserted into the slot, and a first handle is fixedly connected to the push-pull plate.

[0012] Preferably, a second feed port is provided on the material receiving box, the second feed port is communicated with the discharge pipe, the bottom surface of the material receiving box is inclined, and a plurality of second legs are fixedly connected to the material receiving box.

[0013] Preferably, the thrower includes a second rotating shaft, a plurality of throwing rods are fixedly connected to the second rotating shaft, the second rotating shaft is rotatably connected to the material receiving box, the output end of the second motor is fixedly connected to the second rotating shaft, and the second motor is fixedly connected to the material receiving box through a second connecting plate.

[0014] Preferably, the heating box includes a box body, and an electric heater is fixedly connected to the box body.

[0015] Preferably, a valve is installed on the water injection pipe, and a second handle is fixedly connected to the blocking cover.

[0016] The utility model discloses the following technical effects: in this device, the tank body is used for composting corn stalks, the crushed corn stalks are put into the tank body through the first feed port, water is injected into the tank body through the water injection pipe, the stirring mechanism is used to stir the corn stalks in the tank body, the push-pull plate is used to block the discharge port, so that the corn stalks are composted in the tank body, and the temperature and humidity sensor is used to measure the temperature and humidity in the tank body; when the corn stalks are fully composted, they are discharged from the discharge port and enter the receiving box, the second motor drives the thrower to move, and the thrower throws the corn stalks in the receiving box from the throwing port, thereby facilitating the discharge; during the straw composting process, the heating box heats the internal heat-conducting medium, and the heated heat-conducting medium enters the shell through the first water pump, the heat-conducting medium releases heat in the shell, heats the tank body, so that the straw inside it is composted and maintained at a certain temperature, and the second water pump pumps the heat-conducting medium after heat dissipation back into the heating box. The utility model can not only compost corn stalks, but also keep the tank body warm during the composting process, so that the composting process is kept at a suitable temperature, the composting progress is accelerated, and the use is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structure of a corn straw composting device suitable for cold and cool areas in northern China;

[0019] Figure 2 This is a top sectional view of the material receiving box of the utility model;

[0020] Among them, 1. tank body; 2. first leg; 3. discharge port; 4. plug cover; 5. first motor; 6. push-pull plate; 7. water injection pipe; 8. temperature and humidity sensor; 9. shell; 10. water inlet pipe; 11. drain pipe; 12. first water pump; 13. second water pump; 14. heating box; 15. receiving box; 16. throwing port; 17. second motor; 18. discharge pipe; 19. first rotating shaft; 20. stirring rod; 21. second handle; 22. spiral plate; 23. first handle; 24. second leg; 25. second rotating shaft; 26. throwing rod; 27. box body; 28. electric heater; 29. ​​valve. DETAILED DESCRIPTION

[0021] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] Reference Figure 1-2 The utility model provides a corn straw composting device suitable for cold areas in northern China, comprising:

[0024] The fermentation assembly includes a tank body 1, a plurality of first legs 2 are fixedly connected to the tank body 1, a plurality of first feed ports and discharge ports 3 are opened on the tank body 1, a plugging cover 4 is provided on the first feed port, a stirring mechanism is provided inside the tank body 1, a first motor 5 is provided outside the tank body 1, the first motor 5 is transmission-connected to the stirring mechanism, a push-pull plate 6 is provided on the discharge port 3, a water injection pipe 7 is connected to the tank body 1, and a temperature and humidity sensor 8 is fixedly connected inside the tank body 1;

[0025] The insulation component includes a shell 9, which is fixedly connected to the outer edge of the tank body 1. The shell 9 is connected to a water inlet pipe 10 and a drain pipe 11. The water inlet pipe 10 is installed with a first water pump 12, and the drain pipe 11 is installed with a second water pump 13. The water inlet pipe 10 and the drain pipe 11 are connected with a heating box 14, and the heating box 14 is filled with a heat-conducting medium.

[0026] The material discharging assembly includes a material receiving box 15, which is connected to the material discharging port 3. The material receiving box 15 is provided with a material throwing port 16. A second motor 17 is fixedly connected to the material receiving box 15. A material thrower is provided in the material receiving box 15. The second motor 17 is transmission-connected to the material thrower.

[0027] In this device, the tank body 1 is used for composting corn stalks. The crushed corn stalks are put into the tank body 1 through the first feed port, and water is injected into the tank body 1 through the water injection pipe 7. The stirring mechanism is used to stir the corn stalks in the tank body 1. The push-pull plate 6 is used to block the discharge port 3 to facilitate the composting of the corn stalks in the tank body 1. The temperature and humidity sensor 8 is used to measure the temperature and humidity in the tank body 1. When the corn stalks are fully composted, they are discharged from the discharge port 3 and enter the receiving box 15. The second motor 17 drives the thrower to move, and the thrower throws the corn stalks in the receiving box 15 from the throwing port 16, thereby facilitating the discharge of the material; during the straw composting process, the heating box 14 will heat the internal heat-conducting medium, and the heated heat-conducting medium enters the shell 9 through the first water pump 12. The heat-conducting medium releases heat in the shell 9 and heats the tank body 1, so that the straw inside it is composted and maintained at a certain temperature. The second water pump 13 pumps the heat-conducting medium after heat dissipation back to the heating box 14.

[0028] Further optimization scheme, a discharge pipe 18 is fixedly connected to the discharge port 3, the discharge pipe 18 is communicated with the receiving box 15, the discharge pipe 18 is fixedly connected to the receiving box 15, the stirring mechanism includes a first rotating shaft 19, the first rotating shaft 19 is rotatably connected in the tank body 1, the first rotating shaft 19 extends out of the tank body 1, the first motor 5 is fixedly connected to the first rotating shaft 19, the first motor 5 is fixedly connected to the tank body 1 through the first connecting plate, and a plurality of stirring rods 20 and a spiral plate 22 are fixedly connected to the first rotating shaft 19, the spiral plate 22 is located in the discharge pipe 18, and the stirring rod 20 is located in the tank body 1.

[0029] The discharge pipe 18 facilitates discharge, the first motor 5 drives the first rotating shaft 19 to rotate, and the first rotating shaft 19 drives the stirring rod 20 to rotate to stir the corn stalks. When stirring the corn stalks, the spiral plate 22 rotates to push the material upward. When discharging the corn stalks, the spiral plate 22 rotates in the opposite direction to push the corn stalks out of the tank body 1.

[0030] To further optimize the solution, a slot is provided on the discharge pipe 18 , the push-pull plate 6 is inserted into the slot, and a first handle 23 is fixedly connected to the push-pull plate 6 .

[0031] The push-pull plate 6 is mainly used to block the discharge pipe 18 , and the first handle 23 facilitates the movement of the push-pull plate 6 .

[0032] According to a further optimized solution, a second feed port is provided on the material receiving box 15 , the second feed port is communicated with the discharge pipe 18 , the bottom surface of the material receiving box 15 is tilted, and a plurality of second legs 24 are fixedly connected to the material receiving box 15 .

[0033] After the mature corn stalks are discharged from the discharge pipe 18 , they enter the receiving box 15 through the second feed port. The bottom surface of the receiving box 15 is tilted toward the throwing port 16 , thereby facilitating the movement of the material toward the throwing port 16 .

[0034] A further optimized solution is that the thrower includes a second rotating shaft 25, a plurality of throwing rods 26 are fixedly connected to the second rotating shaft 25, the second rotating shaft 25 is rotatably connected to the material receiving box 15, the output end of the second motor 17 is fixedly connected to the second rotating shaft 25, and the second motor 17 is fixedly connected to the material receiving box 15 through a second connecting plate.

[0035] The second motor 17 drives the second rotating shaft 25 to rotate, and the second rotating shaft 25 drives the throwing rod 26 to rotate, throwing the decomposed corn stalks out of the receiving box 15.

[0036] According to a further optimized solution, the heating box 14 includes a box body 27 , and an electric heater 28 is fixedly connected to the box body 27 .

[0037] The electric heater 28 is used to heat the heat-conducting medium, which is in a liquid state.

[0038] According to a further optimized solution, a valve 29 is installed on the water injection pipe 7 and a second handle 21 is fixedly connected to the blocking cover 4 .

[0039] The valve 29 is used to control the water injection pipe 7, and the second handle 21 is convenient for taking the plug cover 4.

[0040] The method of using the device is as follows: the crushed corn stalks are put into the tank body 1 through the first feed port, and water is injected into the tank body 1 through the water injection pipe 7. When the corn stalks in the tank body 1 need to be stirred, the first motor 5 is started, and the first motor 5 drives the first rotating shaft 19 to rotate, and the first rotating shaft 19 drives the stirring rod 20 to rotate to stir the corn stalks. When stirring the corn stalks, the spiral plate 22 rotates to push the material upward. When discharging the corn stalks, the spiral plate 22 rotates in the opposite direction to push the corn stalks out of the tank body 1; during the straw composting process, the heating box 14 heats the internal heat-conducting medium, and the heated heat-conducting medium The material enters the shell 9 through the first water pump 12, and the heat-conducting medium releases heat in the shell 9 to heat the tank body 1, so that the straw inside it is decomposed and maintained at a certain temperature. The second water pump 13 pumps the heat-conducting medium after heat dissipation back to the heating box 14, and the temperature and humidity sensor 8 can measure the temperature and humidity in the tank body 1; when the corn straw is fully decomposed, it is discharged from the discharge port 3 and enters the receiving box 15, and the material moves downward along the receiving box 15, and the second motor 17 drives the second rotating shaft 25 to rotate, and the second rotating shaft 25 drives the throwing rod 26 to rotate, and the decomposed corn straw is thrown out of the receiving box 15, thereby speeding up the discharge.

[0041] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0042] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A corn straw composting device suitable for cold areas in northern China, characterized in that: include: A fermentation assembly, the fermentation assembly comprising a tank body (1), a plurality of first legs (2) fixedly connected to the tank body (1), a plurality of first feed ports and discharge ports (3) opened on the tank body (1), a blocking cover (4) provided on the first feed port, a stirring mechanism provided inside the tank body (1), a first motor (5) provided outside the tank body (1), the first motor (5) being transmission-connected to the stirring mechanism, a push-pull plate (6) provided on the discharge port (3), a water injection pipe (7) connected to the tank body (1), and a temperature and humidity sensor (8) fixedly connected inside the tank body (1); A heat preservation component, the heat preservation component comprises a shell (9), the shell (9) is fixedly connected to the outer edge of the tank body (1), the shell (9) is connected to a water inlet pipe (10) and a drain pipe (11), the water inlet pipe (10) is installed with a first water pump (12), the drain pipe (11) is installed with a second water pump (13), the water inlet pipe (10) and the drain pipe (11) are connected to a heating box (14), and the heating box (14) is filled with a heat conducting medium; A material discharging assembly, comprising a material receiving box (15), the material receiving box (15) being in communication with the material discharging port (3), the material receiving box (15) being provided with a material throwing port (16), a second motor (17) being fixedly connected to the material receiving box (15), a material throwing device being provided in the material receiving box (15), and the second motor (17) being in transmission connection with the material throwing device.

2. The corn straw composting device suitable for cold areas in northern China according to claim 1, characterized in that: A discharge pipe (18) is fixedly connected to the discharge port (3), the discharge pipe (18) is communicated with the material receiving box (15), and the discharge pipe (18) is fixedly connected to the material receiving box (15). The stirring mechanism includes a first rotating shaft (19), the first rotating shaft (19) is rotatably connected to the tank body (1), the first rotating shaft (19) extends out of the tank body (1), the first motor (5) is fixedly connected to the first rotating shaft (19), the first motor (5) is fixedly connected to the tank body (1) through a first connecting plate, and a plurality of stirring rods (20) and a spiral plate (22) are fixedly connected to the first rotating shaft (19), the spiral plate (22) is located in the discharge pipe (18), and the stirring rods (20) are located in the tank body (1).

3. The corn straw composting device suitable for cold areas in northern China according to claim 2, characterized in that: The discharge pipe (18) is provided with a slot, the push-pull plate (6) is inserted into the slot, and a first handle (23) is fixedly connected to the push-pull plate (6).

4. The corn straw composting device suitable for cold areas in northern China according to claim 2, characterized in that: The receiving box (15) is provided with a second feed port, the second feed port is communicated with the discharge pipe (18), the bottom surface of the receiving box (15) is inclined, and a plurality of second legs (24) are fixedly connected to the receiving box (15).

5. The corn straw composting device suitable for cold areas in northern China according to claim 1, characterized in that: The ejector includes a second rotating shaft (25), a plurality of ejector rods (26) are fixedly connected to the second rotating shaft (25), the second rotating shaft (25) is rotatably connected to the material receiving box (15), the output end of the second motor (17) is fixedly connected to the second rotating shaft (25), and the second motor (17) is fixedly connected to the material receiving box (15) via a second connecting plate.

6. The corn straw composting device suitable for cold areas in northern China according to claim 1, characterized in that: The heating box (14) comprises a box body (27), and an electric heater (28) is fixedly connected inside the box body (27).

7. The corn straw composting device suitable for cold areas in northern China according to claim 1, characterized in that: A valve (29) is installed on the water injection pipe (7), and a second handle (21) is fixedly connected to the blocking cover (4).