Organic solid waste fermentation tank

Abstract

The utility model discloses an organic solid waste fermentation tank which comprises a tank body, a driving structure and a stirring assembly, the tank body is provided with a fermentation cavity and an exhaust port communicated with the fermentation cavity, the exhaust port is located at the upper end of the tank body, the driving structure comprises a rotating shaft rotationally arranged along an axis extending in the vertical direction, and the rotating shaft is located in the fermentation cavity. The rotating shaft is provided with an airflow channel extending in the vertical direction, the airflow channel is used for being communicated with air outside the tank body, the stirring assembly comprises a plurality of stirring rods arranged in the circumferential direction of the rotating shaft at intervals, each stirring rod forms a flow dividing channel, the flow dividing channels are communicated with the airflow channel, and air outlet holes communicated with the flow dividing channels are formed in the outer surfaces of the stirring rods. By means of the arrangement, the contact area between the organic solid waste and air can be increased, so that the organic solid waste can make full contact with the air, oxygen can be supplemented into the fermentation cavity in time, and it is ensured that the fermentation reaction is conducted fully.

Description

Technical Field

[0001] The utility model relates to the technical field of organic solid waste treatment, in particular to an organic solid waste fermentation tank. Background Art

[0002] Organic solid waste refers to solid and semi-solid waste materials generated by human beings in production, consumption, life and other activities, commonly known as "garbage". It mainly includes solid particles, garbage, slag, sludge, discarded products, broken utensils, defective products, animal carcasses, spoiled food, human and animal feces, etc.

[0003] In the existing organic solid waste fermentation process, the air inlet is usually set on the side wall or upper cover of the tank body, and only relies on the natural flow of outside air into the fermentation chamber. The oxygen in the air cannot fully contact the organic solid waste inside, resulting in uneven fermentation of the organic solid waste, which in turn causes the entire fermentation process to be unsmooth. Utility Model Content

[0004] The main purpose of the utility model is to propose an organic solid waste fermentation tank, which aims to solve the problem that in the existing organic solid waste fermentation process, the air inlet is usually arranged on the side wall or the upper cover of the tank body, and only relies on the natural flow of outside air into the fermentation chamber. The oxygen in the air cannot fully contact the organic solid waste inside, resulting in uneven fermentation of the organic solid waste, which in turn leads to the problem that the entire fermentation process is not smooth.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an organic solid waste fermentation tank, comprising:

[0006] A tank body having a fermentation chamber, wherein the tank body is provided with an exhaust port communicating with the fermentation chamber, and the exhaust port is located at the upper end of the tank body;

[0007] A driving structure, comprising a rotating shaft rotatably arranged along an axis extending in a vertical direction, the rotating shaft being located in the fermentation chamber, the rotating shaft having an air flow channel extending in a vertical direction, the air flow channel being used to communicate with air outside the tank body; and

[0008] The stirring assembly includes a plurality of stirring rods spaced apart in the circumferential direction of the rotating shaft, each of the stirring rods is formed with a diversion channel connected to the air flow channel, and an air outlet connected to the diversion channel is formed on the outer surface of each stirring rod.

[0009] Optionally, each of the stirring rods includes a main body and a bending portion set at an angle, the bending portion extends in the up-down direction, and the main body extends in the radial direction of the rotating shaft, and each of the bending portions is provided with a plurality of the air outlet holes, and the plurality of the air outlet holes are arranged in the up-down direction and at intervals in the circumferential direction of the bending portion, and each of the air outlet holes is connected to the airflow channel to form a corresponding diversion channel.

[0010] Optionally, the peripheral side surface of each of the bent portions has a contact portion and a ventilating portion, and the contact portion is always oriented toward the rotation direction of the rotating shaft during the process in which the bent portion is driven to rotate;

[0011] The plurality of air outlet holes are all arranged on the air permeable portion.

[0012] Optionally, a plurality of crushing groups are provided on the peripheral side surface of each bending portion, each crushing group includes two crushing portions opposite to each other in the radial direction of the rotating shaft, and each crushing portion is located between two adjacent air outlet holes in the vertical direction.

[0013] Optionally, the multiple broken parts on two adjacent bending parts are staggered in the upper and lower directions.

[0014] Optionally, each of the crushing parts has a blade, and the blades of the two crushing parts face the same direction.

[0015] Optionally, one end of the rotating shaft extends outside the tank body and is provided with an air inlet hole communicating with the air flow channel;

[0016] The organic solid waste fermentation tank also includes an air charging device, which is arranged on the tank body and communicated with the air inlet, and the air charging device can charge air into the air flow channel.

[0017] Optionally, the inflation device comprises:

[0018] A gas compression structure, disposed on the tank body and connected to the air inlet;

[0019] a humidifier, disposed on the compressed air structure, and used to adjust the humidity of the gas in the compressed air structure; and

[0020] The heater is arranged on the compressed air structure and avoids the humidifier. The heater is used to adjust the temperature of the gas in the compressed air structure.

[0021] Optionally, the organic solid waste fermentation tank further comprises a detector, which is disposed in the fermentation chamber and can detect the temperature, humidity, and air content in the fermentation chamber.

[0022] Optionally, the organic solid waste fermentation tank further comprises a filtering structure, wherein the filtering structure is located on the tank body and is arranged corresponding to the exhaust port, and the filtering structure is used for filtering the gas exhausted from the fermentation chamber.

[0023] In the technical solution provided by the utility model, the fermentation chamber contains organic solid waste, and a plurality of stirring rods extend into the organic solid waste. During the fermentation process, the plurality of air outlets are connected with the air outside the tank body through the air flow channel and the plurality of diversion channels to blow the outside air into the organic solid waste. At the same time, the rotating shaft rotates along the axis extending in the vertical direction, thereby driving the plurality of stirring rods to rotate around the axis extending in the vertical direction of the rotating shaft. The plurality of stirring rods can stir the organic solid waste together to increase the contact area between the organic solid waste and the air, so that the organic solid waste can fully contact the air, and oxygen can be added to the fermentation chamber in time to ensure that the fermentation reaction is fully carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 A three-dimensional schematic diagram of an organic solid waste fermentation tank according to an embodiment of the present invention;

[0026] Figure 2 for Figure 1 A cross-sectional schematic diagram of an organic solid waste fermentation tank;

[0027] Figure 3 for Figure 2 Schematic diagram of part A of the organic solid waste fermentation tank.

[0028] Description of Figure Numbers:

[0029]

[0030]

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0035] At present, in the commonly used organic solid waste fermentation process, the air inlet is usually set on the side wall or upper cover of the tank, and only relies on the natural flow of outside air into the fermentation chamber. The oxygen in the air cannot fully contact the organic solid waste inside, resulting in uneven fermentation of the organic solid waste, which in turn causes the entire fermentation process to be unsmooth, posing a high problem.

[0036] In order to solve the above problems, the utility model provides an organic solid waste fermentation tank 100. Figures 1 to 3 This is a specific embodiment of the organic solid waste fermentation tank provided by the utility model.

[0037] See also Figures 1 to 3The organic solid waste fermentation tank 100 includes a tank body 1, a driving structure 2, and a stirring assembly 3. The tank body 1 has a fermentation chamber 11. The tank body 1 is provided with an exhaust port 12 connected to the fermentation chamber 11. The exhaust port 12 is located at the upper end of the tank body 1. The driving structure 2 includes a rotating shaft 21 rotatably arranged along an axis extending in an up-down direction. The rotating shaft 21 is located in the fermentation chamber 11. The rotating shaft 21 has an air flow channel extending in an up-down direction. The air flow channel is used to connect the air outside the tank body 1. The stirring assembly 3 includes a plurality of stirring rods 31 arranged at intervals in the circumferential direction of the rotating shaft 21. Each of the stirring rods 31 is formed with a shunt channel, which is connected to the air flow channel. The outer surface of each of the stirring rods 31 is provided with an air outlet 32 ​​connected to the shunt channel.

[0038] In the technical solution provided by the utility model, the fermentation chamber 11 contains organic solid waste, and multiple stirring rods 31 extend into the organic solid waste. During the fermentation process, the multiple air outlets 32 are connected to the air outside the tank body 1 through the air flow channel and the multiple diversion channels to blow the outside air into the organic solid waste. At the same time, the rotating shaft 21 rotates along the axis extending in the vertical direction, thereby driving the multiple stirring rods 31 to rotate along the rotating shaft 21 and around the axis extending in the vertical direction of the rotating shaft 21. The multiple stirring rods 31 can stir the organic solid waste together to increase the contact area between the organic solid waste and the air, so that the organic solid waste can fully contact with the air, and oxygen can be added to the fermentation chamber 11 in time to ensure the full progress of the fermentation reaction.

[0039] It can be understood that the driving structure 2 also includes a motor, the main shaft of the motor is connected to the rotating shaft 21, and the rotating shaft 21 can rotate coaxially with the motor. Of course, in other embodiments, the main shaft of the motor can also be connected to the rotating shaft 21 through a transmission gear, and the present utility model does not impose any restrictions on this.

[0040] In addition, the plurality of stirring rods 31 can be arranged at intervals in the vertical direction so as to stir multiple organic solid wastes distributed in the vertical direction, thereby further increasing the adequacy of the stirring work.

[0041] Furthermore, each stirring rod 31 includes a main body 311 and a bent portion 312 arranged at an angle, the bent portion 312 extends in the up-down direction, and the main body 311 extends in the radial direction of the rotating shaft 21, and each bent portion 312 is provided with a plurality of air outlet holes 32, and the plurality of air outlet holes 32 are arranged in the up-down direction and at intervals in the circumferential direction of the bent portion 312, and each air outlet hole 32 is connected to the air flow channel to form a corresponding diversion channel. The air outlet holes 32 are arranged on the bent portion 312, so that air can be filled into the organic solid waste fermentation tank 100 during the stirring process, so that the organic solid waste can be fully in contact with the air, and the organic solid waste can be fully fermented.

[0042] It should be noted that the present invention also does not limit the distance between the multiple bending portions 312 and the rotating shaft 21. The distance between the multiple bending portions 312 and the rotating shaft 21 can be set to be the same or different. When the distance between the multiple bending portions 312 and the rotating shaft 21 is the same, that is, the length of the multiple bodies 311 is the same, the multiple bending portions 312 can rotate around the axis extending vertically from the rotating shaft 21 with the same radius length, thereby ensuring the stability of the rotation of the rotating shaft 21, thereby improving the stability of the operation of the organic solid waste fermentation tank 100; when the distance between the multiple bending portions 312 and the rotating shaft 21 is set to be different, that is, the length of the multiple bodies 311 is different, the multiple bending portions 312 can rotate around the axis extending vertically from the rotating shaft 21 with different radius lengths, and the multiple bending portions 312 can respectively stir the organic solid waste located at different distances in the radial direction of the rotating shaft 21, thereby ensuring the sufficiency of the stirring, making the organic solid waste ferment evenly, and ensuring the smooth progress of the fermentation process.

[0043] In addition, the angle between each of the main bodies 311 and each of the bent portions 312 should be between 0° and 180° to ensure the stirring range of each of the main bodies 311 and the bent portions 312 .

[0044] Furthermore, each of the bending portions 312 has a contact portion 313 and a ventilated portion 314 on its circumferential side surface. The contact portion 313 is always oriented toward the rotation direction of the rotating shaft 21 during the process of the bending portion 312 being driven to rotate. The plurality of air outlets 32 are all arranged on the ventilated portion 314. In this way, the plurality of air outlets 32 will not directly hit the organic solid waste, and the organic solid waste can be prevented from entering the diversion channel from the plurality of air outlets 32 and accumulating in the diversion channel, or clogging the air outlets 32, so that the air outlets 32 cannot discharge air normally, thereby affecting the fermentation degree of the organic solid waste in the fermentation chamber 11.

[0045] Of course, in other embodiments, the air outlet 32 ​​can also be covered with a polymer waterproof and breathable membrane, which can prevent organic solid waste from entering the diversion channel from the air outlet 32, and at the same time enable the air in the diversion channel to be smoothly filled into the fermentation chamber 11 to contact with the organic solid waste, and then perform an aerobic reaction, which can also ensure the inflation efficiency of the organic solid waste fermentation tank 100.

[0046] Since the sizes and shapes of the plurality of organic solid wastes are different, in order to make the size of the organic solid waste small enough to increase its contact area with the air and improve the fermentation degree, a plurality of crushing groups 33 are provided on the circumferential side of each of the bending portions 312, each of the crushing groups 33 includes two crushing portions 331 opposite to each other in the radial direction of the rotating shaft 21, and each of the crushing portions 331 is located between two adjacent air outlets 32 in the vertical direction. When the rotating shaft 21 drives the plurality of the main bodies and the bending portions 312 to rotate along the axis extending in the vertical direction thereof, the two crushing portions 331 opposite to each other in the radial direction of the rotating shaft 21 can both collide with the organic solid waste. At this time, the organic solid waste can be crushed into at least two parts by the rotating shaft 21 to increase its surface area, that is, to increase the contact area with the air.

[0047] At the same time, each crushing part 331 is disposed between two adjacent air outlet holes 32 in the vertical direction, so that the crushed organic solid waste can be in contact with the air at the first time, thereby improving the fermentation efficiency of the organic solid waste fermentation tank 100 .

[0048] Furthermore, the multiple crushing parts 331 on two adjacent bending parts 312 are staggered in the upper and lower directions. In this way, the rotation paths of the multiple crushing parts 331 on two adjacent bending parts 312 will not overlap, which can further increase the contact area between the multiple crushing parts 331 and the organic solid waste, thereby improving the effect of the multiple crushing parts 331 in crushing the organic solid waste, so as to fully reduce the size of the organic solid waste and increase the contact area with the air.

[0049] Taking into account that some organic solid wastes have a high hardness, in order to enable the crushing part 331 to successfully crush the organic solid waste, each crushing part 331 has a blade, and the blades of the two crushing parts 331 are oriented in the same direction. In this embodiment, the blades of the two crushing parts 331 are both oriented in the rotation direction of the rotating shaft 21. In this way, the contact area between each crushing part 331 and the organic solid waste can be reduced, thereby enabling each crushing part 331 to cut harder organic solid waste into pieces, thereby ensuring the crushing effect of each crushing part 331 on the organic solid waste.

[0050] Of course, in other embodiments, the blades of the two crushing parts 331 can also be set to face opposite directions. In this case, no matter whether the rotating shaft 21 rotates forward or reversely, one of the blades of the crushing part 331 faces the rotation direction of the rotating shaft 21 to perform high-intensity crushing work, thereby improving the application range of the crushing part 331.

[0051] In order to further increase the amount of air filled into the fermentation chamber 11 per unit time, one end of the rotating shaft 21 extends to the outside of the tank body 1 and is penetrated by an air inlet 22 connected to the air flow channel. The organic solid waste fermentation tank 100 also includes an air charging device 4, which is arranged on the tank body 1 and is connected to the air inlet 22. The air charging device 4 can inflate the air flow channel. With this arrangement, the air charging device 4 can charge more air into the fermentation chamber 11 to fully contact and react with the organic solid waste, thereby ensuring the smooth progress of the fermentation work.

[0052] It can be imagined that the organic solid waste in the fermentation chamber 11 requires different oxygen content, ambient temperature, and ambient humidity in each fermentation stage. Therefore, the inflation device 4 includes a compressed air structure, a humidifier, and a heater. The compressed air structure is arranged on the tank body 1 and is connected to the air inlet 22. The humidifier is arranged on the compressed air structure. The humidifier is used to adjust the humidity of the gas in the compressed air structure. The heater is arranged on the compressed air structure and avoids the humidifier. The heater is used to adjust the temperature of the gas in the compressed air structure. Such an arrangement can control the air content entering the fermentation chamber 11, as well as the humidity and temperature of the air according to the various fermentation stages of the organic solid waste, thereby adjusting the environmental parameters in each fermentation stage of the organic solid waste, so that the organic solid waste can always be in a smooth fermentation state.

[0053] Furthermore, in order to accurately understand the state in the fermentation chamber 11 for the convenience of adjustment, the organic solid waste fermentation tank 100 also includes a detector 5, which is arranged in the fermentation chamber 11. The detector 5 can detect the temperature, humidity, and air content in the fermentation chamber 11. In this way, the compressed air structure, the humidifier and the heater only need to be adjusted according to the parameters detected by the detector 5, thereby ensuring the accuracy of the adjustment of the environmental parameters in the fermentation chamber 11.

[0054] Furthermore, the organic solid waste fermentation tank 100 also includes a filtering structure 6, which is located on the tank body 1 and is arranged corresponding to the exhaust port 12. The filtering structure 6 is used to filter the gas discharged from the fermentation chamber 11. Such a setting can ensure the quality of the gas discharged from the organic solid waste fermentation tank 100 to prevent harmful gases generated by the fermentation of organic solid waste in the fermentation chamber 11 from being discharged into the atmosphere, thereby polluting the air quality.

[0055] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the concept of the utility model, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An organic solid waste fermentation tank, characterized in that: include: A tank body having a fermentation chamber, wherein the tank body is provided with an exhaust port communicating with the fermentation chamber, and the exhaust port is located at the upper end of the tank body; The driving structure includes a rotating shaft rotatably arranged along an axis extending in a vertical direction, the rotating shaft is located in the fermentation chamber, and the rotating shaft has an air flow channel extending in a vertical direction, and the air flow channel is used to communicate with the air outside the tank body; as well as, The stirring assembly includes a plurality of stirring rods spaced apart in the circumferential direction of the rotating shaft, each of the stirring rods is formed with a diversion channel connected to the air flow channel, and an air outlet connected to the diversion channel is formed on the outer surface of each stirring rod.

2. The organic solid waste fermentation tank according to claim 1, characterized in that: Each of the stirring rods includes a main body and a bending portion set at an angle, the bending portion extends in the up-down direction, and the main body extends in the radial direction of the rotating shaft, and each of the bending portions is provided with a plurality of air outlet holes, and the plurality of air outlet holes are arranged in the up-down direction and at intervals in the circumferential direction of the bending portion, and each of the air outlet holes is connected to the airflow channel to form a corresponding diversion channel.

3. The organic solid waste fermentation tank according to claim 2, characterized in that: The peripheral side surface of each bending portion has a contact portion and a ventilating portion, and the contact portion is always oriented toward the rotation direction of the rotating shaft when the bending portion is driven to rotate; The plurality of air outlet holes are all arranged on the air permeable portion.

4. The organic solid waste fermentation tank according to claim 2, characterized in that: A plurality of crushing groups are arranged on the peripheral side surface of each bending portion, each crushing group comprises two crushing parts which are opposite to each other in the radial direction of the rotating shaft, and each crushing part is located between two air outlet holes which are adjacent to each other in the vertical direction.

5. The organic solid waste fermentation tank according to claim 4, characterized in that: The multiple broken parts on two adjacent bending parts are staggered in the up-down direction.

6. The organic solid waste fermentation tank according to claim 4, characterized in that: Each of the crushing parts has a blade, and the blades of the two crushing parts face the same direction.

7. The organic solid waste fermentation tank according to claim 1, characterized in that: One end of the rotating shaft extends to the outside of the tank body and is provided with an air inlet hole connected to the air flow channel; The organic solid waste fermentation tank also includes an air charging device, which is arranged on the tank body and communicated with the air inlet, and the air charging device can charge air into the air flow channel.

8. The organic solid waste fermentation tank according to claim 7, characterized in that: The inflatable device comprises: A gas compression structure, disposed on the tank body and connected to the air inlet; a humidifier, disposed on the compressed air structure, and used to adjust the humidity of the gas in the compressed air structure; and The heater is arranged on the compressed air structure and avoids the humidifier. The heater is used to adjust the temperature of the gas in the compressed air structure.

9. The organic solid waste fermentation tank according to claim 1, characterized in that: The organic solid waste fermentation tank further comprises a detector, which is arranged in the fermentation chamber and can detect the temperature, humidity and air content in the fermentation chamber.

10. The organic solid waste fermentation tank according to claim 1, characterized in that: The organic solid waste fermentation tank further comprises a filtering structure, which is located on the tank body and arranged corresponding to the exhaust port, and is used for filtering the gas exhausted from the fermentation chamber.

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