Straw biogas fermentation equipment

Abstract

The utility model discloses straw biogas fermentation equipment which comprises a box body, a feeding hole and an exhaust hole are formed in the upper end of the box body, a discharging hole is formed in the bottom of the box body, a constant-temperature and constant-humidity maintaining assembly is fixedly arranged on the side face of the box body, a spiral discharging mechanism is arranged in the discharging hole, and a material pressing plate is arranged in the box body in an up-down sliding connection mode. A driving guide rod is fixedly arranged at the upper end of the material pressing plate, the upper end of the driving guide rod penetrates out of the top face of the box body and is in sliding fit with the box body, a motor is fixedly arranged at the upper end of the box body, a gear is fixedly arranged on a driving shaft of the motor, and a rack meshed with the driving gear is arranged on the driving guide rod. The floating straw is completely immersed below the liquid level to ensure that the straw is fully covered by the liquid, so that the problem that the straw cannot be fermented due to dryness is avoided, the constant-temperature and constant-humidity maintaining assembly is arranged, the temperature and humidity in the box body are adjusted, and a stable and appropriate environmental condition is provided for fermentation of microorganisms.

Description

Technical Field

[0001] The utility model relates to the technical field of straw fermentation devices, in particular to straw biogas fermentation equipment. Background Art

[0002] As a byproduct of crops, straw is widely found in rural areas. Using straw for biogas fermentation is an environmentally friendly and sustainable way of energy utilization. During the biogas fermentation process, the organic matter in the straw is decomposed by microorganisms under anaerobic conditions to produce biogas and organic fertilizer, which can be used as living fuel, power generation or heating. At the same time, it can reduce the problem of rural waste disposal and has important economic and ecological benefits.

[0003] In traditional equipment, once straw is put into the fermentation tank, it often floats on the surface of the fermentation liquid due to its light and porous characteristics. This results in the straw not being completely wetted and wrapped by water during the fermentation process. Part of the straw is difficult to be covered by liquid again after floating, causing the straw to dry in the air and thus unable to effectively participate in the fermentation reaction.

[0004] Due to the problem of foam, the distribution of straw in the fermentation liquid is uneven. Some straw floats on the surface, while others settle at the bottom of the liquid, resulting in uneven fermentation reaction. Some straw may not be able to ferment at all, thus affecting the yield and quality of biogas. The foam and uneven fermentation distribution directly lead to a reduction in fermentation efficiency. Straw that fails to effectively participate in the fermentation reaction not only fails to produce biogas, but also wastes raw materials. Traditional equipment usually requires frequent manual intervention to adjust and control the fermentation process, including manual stirring and adjusting the distribution of fermentation materials, which increases the complexity of operation and labor costs. Utility Model Content

[0005] 1. Technical issues

[0006] The utility model provides a straw biogas fermentation device, aiming to solve the problem of incomplete and uneven fermentation caused by straw floating in traditional straw biogas fermentation equipment.

[0007] (II) Technical content

[0008] In order to solve the above technical problems, the technical solution of the utility model is: a straw biogas fermentation equipment, including a box body, a feed inlet and an exhaust port are arranged at the upper end of the box body, a discharge port is arranged at the bottom of the box body, a constant temperature and humidity maintenance component is fixedly arranged on the side of the box body, a spiral discharge mechanism is arranged inside the discharge port, a pressing plate is slidably connected up and down inside the box body, a driving guide rod is fixedly arranged on the upper end of the pressing plate, the upper end of the driving guide rod passes through the top surface of the box body and slides with the box body, a motor is fixedly arranged on the upper end of the box body, a gear is fixedly arranged on the driving shaft of the motor, and a rack meshing with the driving gear is arranged on the driving guide rod.

[0009] Furthermore, the constant temperature and humidity maintenance component includes an electric heating plate and a temperature and humidity meter fixedly arranged on the side wall of the box body, and also includes a PLC controller fixedly arranged on the outer side of the box body. The electric heating plate and the temperature and humidity meter are both electrically connected to the PLC controller.

[0010] Furthermore, it also includes an atomizing nozzle fixedly arranged inside the box body, and an electromagnetic flow valve is fixedly arranged at the water inlet end of the atomizing nozzle, and the electromagnetic flow valve is electrically connected to the PLC controller.

[0011] Furthermore, the spiral discharging mechanism includes an auger rotatably arranged inside the discharging port, and also includes a second motor fixedly arranged at the bottom of the discharging port for driving the auger to rotate.

[0012] Furthermore, vertical guide rods are fixedly provided at the four corners inside the box body, and the four corners of the pressing plate are slidably connected to the four guide rods respectively.

[0013] Furthermore, the pressing plate is hollow.

[0014] (III) Technical Effect

[0015] Compared with the prior art, the utility model has the following advantages: the hollow pressing plate is driven downward by a motor, a driving guide rod, a gear and a rack structure. In traditional equipment, the straw is easy to float on the surface of the fermentation liquid due to its characteristics, resulting in part of the straw being dry and unable to effectively participate in the fermentation. The new equipment utilizes the downward movement of the pressing plate to completely immerse the floating straw below the liquid surface, ensuring that it is fully covered by the liquid, thereby avoiding the problem of the straw being unable to ferment due to drying. The interior of the equipment is equipped with a constant temperature and humidity maintenance component, which adjusts the temperature and humidity inside the box through an electric heating plate, an atomizing nozzle, an electromagnetic flow valve, a temperature and humidity meter and a PLC controller, which provides a stable and suitable environmental condition for the fermentation of microorganisms, and is conducive to the maintenance of microbial activity and the smooth progress of the biogas fermentation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structure diagram of a straw biogas fermentation equipment of the utility model. Figure 1 .

[0017] Figure 2 This is a three-dimensional structure diagram of a straw biogas fermentation equipment of the utility model. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of a straw biogas fermentation device of the utility model. Figure 1 .

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of a straw biogas fermentation device of the utility model. Figure 2 .

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of a straw biogas fermentation device of the utility model. Figure 3 .

[0021] As shown in the figure: 1. Box body; 2. Feed inlet; 3. Exhaust port; 4. Discharge port; 5. Spiral discharge mechanism; 6. Pressing plate; 7. Driving guide rod; 8. Motor; 9. Driving gear; 10. Rack; 11. Electric heating plate 12. Temperature and humidity meter; 13. PLC controller; 14. Atomizing nozzle; 15. Electromagnetic flow valve; 16. Auger; 17. Motor 2; 18. Guide rod. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", "center", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction structure and operation. Therefore, they should not be understood as limitations on the present invention.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "provided with", "installed", "connected", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] Combined with Figure 1 To Attachment Figure 5 A straw biogas fermentation equipment comprises a box body 1, a feed inlet 2 and an exhaust port 3 are arranged at the upper end of the box body 1, a discharge port 4 is arranged at the bottom of the box body 1, a constant temperature and humidity maintaining component is fixedly arranged on the side of the box body 1, a spiral discharge mechanism 5 is arranged inside the discharge port 4, a pressing plate 6 is slidably connected up and down inside the box body 1, and the pressing plate 6 is hollow, and vertical guide rods 18 are fixedly arranged at the four corners of the box body 1, and the four corners of the pressing plate 6 are respectively slidably connected with four guide rods 18, a driving guide rod 7 is fixedly arranged on the upper end of the pressing plate 6, and the upper end of the driving guide rod 7 passes through the top surface of the box body 1 and slides with the box body 1, a motor 8 is fixedly arranged on the upper end of the box body 1, a gear 9 is fixedly arranged on the driving shaft of the motor 8, and a rack 10 meshing with the driving gear 9 is arranged on the driving guide rod 7.

[0026] Reference Figure 1 The constant temperature and humidity maintenance component includes an electric heating plate 11 and a temperature and humidity meter 12 fixedly arranged on the side wall of the box body 1, and also includes a PLC controller 13 fixedly arranged on the outer side of the box body 1. The electric heating plate 11 and the temperature and humidity meter 12 are electrically connected to the PLC controller 13. It also includes an atomizing nozzle 14 fixedly arranged inside the box body 1. The water inlet end of the atomizing nozzle 14 is fixedly provided with an electromagnetic flow valve 15, and the electromagnetic flow valve 15 is electrically connected to the PLC controller 13.

[0027] The above design uses the PLC controller to uniformly manage electric heating, temperature and humidity monitoring, and atomizer nozzle control, which improves the automation and stability of the equipment and ensures constant temperature and humidity during biogas fermentation. The precise control of the electric heating plate and the temperature and humidity meter ensures that the inside of the box always maintains a suitable fermentation temperature, which is conducive to the activity of microorganisms and the stable increase of biogas production. At the same time, the atomizer nozzle can effectively control the humidity in the liquid through the precise adjustment of the PLC controller, further optimize the fermentation environment, ensure the efficient fermentation process, and thus enhance the operability and production efficiency of the equipment.

[0028] Reference Figure 5 The spiral discharging mechanism 5 includes an auger 16 rotatably arranged inside the discharging port 4, and also includes a motor 17 fixedly arranged at the bottom of the discharging port 4 for driving the auger 16 to rotate.

[0029] The above design achieves uniform discharge of straw by driving the rotation of the auger through motor 2. It has a simple and reliable structure and stable operation. It effectively solves the problems of uneven straw discharge and blockage in traditional equipment and improves the reliability and operating efficiency of the equipment.

[0030] Specific implementation of the utility model: Before using the utility model, first connect the external power supply, pour the crushed straw and fermentation liquid into the box body 1 and seal the feed port 2, then start the motor 8 to drive the gear 9 to rotate, thereby driving the driving guide rod 7 with the rack 10 downward, driving the pressing plate 6 to move downward to press the floating straw into the liquid. During the fermentation process, the temperature and humidity meter 12 feeds back the temperature and humidity conditions inside the box body 1 to the PLC controller 13. The PLC controller 13 presets the temperature and humidity range, and automatically starts and stops the heating plate 11 and the electromagnetic flow valve 15 according to the data fed back by the temperature and humidity meter 12, thereby controlling the temperature and humidity inside the box body 1. The biogas generated by the fermentation is discharged from the exhaust port 3, and the waste liquid and residue remaining after the fermentation is completed are discharged through the discharge port 4. The discharge port 4 is opened, and the motor 2 17 is started to drive the auger 16 to rotate and discharge the residue from the discharge port 4.

[0031] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A straw biogas fermentation device, comprising a box body (1), wherein the upper end of the box body (1) is provided with a feed inlet (2) and an exhaust port (3), and the bottom of the box body (1) is provided with a discharge port (4), characterized in that: A constant temperature and humidity maintaining component is fixedly provided on the side of the box body (1), a spiral discharging mechanism (5) is provided inside the discharging port (4), a pressing plate (6) is slidably connected up and down inside the box body (1), a driving guide rod (7) is fixedly provided on the upper end of the pressing plate (6), the upper end of the driving guide rod (7) passes through the top surface of the box body (1) and is slidably matched with the box body (1), a motor (8) is fixedly provided on the upper end of the box body (1), a gear (9) is fixedly provided on the driving shaft of the motor (8), and a rack (10) meshing with the driving gear (9) is provided on the driving guide rod (7).

2. A straw biogas fermentation equipment according to claim 1, characterized in that: The constant temperature and humidity maintaining component comprises an electric heating plate (11) and a temperature and humidity meter (12) fixedly arranged on the side wall of the box body (1), and also comprises a PLC controller (13) fixedly arranged on the outer side of the box body (1); the electric heating plate (11) and the temperature and humidity meter (12) are both electrically connected to the PLC controller (13).

3. A straw biogas fermentation equipment according to claim 2, characterized in that: It also includes an atomizing nozzle (14) fixedly arranged inside the box body (1), an electromagnetic flow valve (15) fixedly arranged at the water inlet end of the atomizing nozzle (14), and the electromagnetic flow valve (15) is electrically connected to the PLC controller (13).

4. The straw biogas fermentation equipment according to claim 1, characterized in that: The spiral discharging mechanism (5) comprises an auger (16) rotatably arranged inside the discharging port (4), and also comprises a second motor (17) fixedly arranged at the bottom of the discharging port (4) for driving the auger (16) to rotate.

5. The straw biogas fermentation equipment according to claim 1, characterized in that: Vertical guide rods (18) are fixedly provided at the four corners inside the box body (1), and the four corners of the pressing plate (6) are slidably connected to the four guide rods (18) respectively.

6. The straw biogas fermentation equipment according to claim 1, characterized in that: The pressing plate (6) is hollow.

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