Efficient semi-dry fermentation device

Abstract

The utility model discloses an efficient semi-dry fermentation device and belongs to the technical field of sewage treatment. An efficient semi-dry fermentation device comprises a fermentation tank and further comprises a rotating shaft arranged in the fermentation tank in a rotating pair mode, a plurality of sets of stirring rods are fixedly arranged on the rotating shaft, and a driving part used for driving the rotating shaft to rotate is arranged on the fermentation tank; a heating channel is formed in the stirring rod, a first channel and a second channel are formed in the rotating shaft, and the two ends of the heating channel communicate with the first channel and the second channel correspondingly; the rotating shaft is rotatably arranged in the fermentation tank, and the stirring rod is fixedly arranged on the rotating shaft, so that materials in the fermentation tank can be stirred, the caking and accumulation of the fermentation materials are prevented, the fermentation materials can be uniformly mixed, and the growth and metabolism of microorganisms are facilitated; in the stirring process of the stirring rods, heat can be transferred into the fermentation tank through the stirring rods, so that the temperature of materials in the fermentation tank is uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a high-efficiency semi-dry fermentation device. Background Art

[0002] Semi-dry fermentation is a technology for treating organic solid waste, especially for materials with high solid content, such as biomass energy production, organic waste treatment, agricultural resource recovery, etc. Compared with wet fermentation, the characteristic of semi-dry fermentation is that its solid moisture content is usually between 10% and 20%, which makes the process have significant advantages in reducing water consumption, simplifying post-processing steps and reducing transportation costs. Semi-dry fermentation can utilize the ammonia oxidation ability of anaerobic microorganisms to convert ammonia nitrogen in ammonia-containing wastewater into harmless products to achieve the purpose of purifying water quality, but it also has certain requirements for the fermentation pool or tank.

[0003] The fermentation tank in the prior art has uneven temperature distribution inside, which affects the anaerobic ammonia oxidation reaction and makes it inconvenient to stir the materials in the fermentation tank, resulting in agglomeration and accumulation of the fermentation materials, affecting the uniform mixing of the fermentation materials and being detrimental to the growth and metabolism of microorganisms. Summary of the invention

[0004] The utility model aims to solve the problems of uneven heating and inconvenience in stirring materials in a fermentation tank in the prior art, and proposes a highly efficient semi-dry fermentation device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-efficiency semi-dry fermentation device comprises a fermentation tank, and also comprises: a rotating shaft arranged in the fermentation tank, a plurality of stirring rods are fixedly arranged on the rotating shaft, and a driving part for driving the rotating shaft to rotate is arranged on the fermentation tank; a heating channel is arranged in the stirring rod, a first channel and a second channel are arranged on the rotating shaft, two ends of the heating channel are respectively connected to the first channel and the second channel, and a heating component is arranged on the fermentation tank.

[0007] In order to provide heat for the heating channel during the rotation of the shaft, preferably, a rotating seat is fixedly provided on the fermentation tank, one end of the rotating shaft is rotatably set in the rotating seat, a first annular groove and a second annular groove are provided in the rotating seat, one end of the first channel is connected to the first annular groove, and one end of the second channel is connected to the second annular groove.

[0008] In order to improve the sealing effect, further, a sealing ring is fixedly arranged inside the rotating seat, and the inner ring of the sealing ring abuts against the outer wall of the rotating shaft.

[0009] In order to facilitate heating for the heating channel, the heating component further includes: a burner fixedly arranged on the outer wall of the fermentation tank, the output end of the burner is connected to the first annular groove; and an induced draft fan fixedly arranged on the outer wall of the fermentation tank, the input end of the induced draft fan is connected to the second annular groove.

[0010] Preferably, the driving unit includes a motor, wherein a bracket is fixedly provided on the outer wall of the fermentation tank, the motor is fixed on the bracket, a second gear is fixedly provided on the output end of the motor, a first gear meshing with the second gear is fixedly provided on the other end of the rotating shaft, and a protective box is fixedly provided on the bracket.

[0011] Preferably, the axial cross section of the stirring rod is conical.

[0012] Compared with the prior art, the utility model provides a highly efficient semi-dry fermentation device, which has the following beneficial effects:

[0013] 1. The efficient semi-dry fermentation device can stir the materials in the fermentation tank by rotating a rotating shaft in the fermentation tank, and a stirring rod is fixed on the rotating shaft to prevent the fermentation materials from agglomerating and piling up, and can make the fermentation materials evenly mixed, which is beneficial to the growth and metabolism of microorganisms and improves the fermentation efficiency;

[0014] 2. The high-efficiency semi-dry fermentation device has a heating channel in the stirring rod, which can transfer heat to the fermentation tank through the stirring rod during the stirring process of the stirring rod, so that the temperature of the fermented material in the fermentation tank is uniform, thereby improving the anaerobic ammonia oxidation reaction.

[0015] The parts not involved in the device are the same as the prior art or can be implemented by using the prior art. The utility model has a rotating shaft arranged in the fermentation tank, on which a stirring rod is fixed, so that the materials in the fermentation tank can be stirred to prevent the fermentation materials from agglomerating and piling up, and the fermentation materials can be evenly mixed, which is beneficial to the growth and metabolism of microorganisms. A heating channel is provided in the stirring rod, and during the stirring process of the stirring rod, heat can be transferred to the fermentation tank through the stirring rod to make the temperature of the materials inside the fermentation tank uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a highly efficient semi-dry fermentation device proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a rotating shaft of a high-efficiency semi-dry fermentation device proposed by the utility model;

[0018] Figure 3 This is a cross-sectional view of a highly efficient semi-dry fermentation device proposed by the utility model;

[0019] Figure 4 A highly efficient semi-dry fermentation device proposed by the utility model Figure 3 Enlarged view of part A.

[0020] In the figure: 1. fermentation tank; 101. first feed pipe; 102. second feed pipe; 103. sewage pipe; 104. air inlet pipe; 105. exhaust pipe; 2. rotating shaft; 201. stirring rod; 202. heating channel; 203. first channel; 204. second channel; 205. first gear; 3. rotating seat; 301. first annular groove; 302. second annular groove; 303. sealing ring; 4. bracket; 401. motor; 402. second gear; 403. protective box; 5. burner; 6. induced draft fan. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example

[0023] Reference Figure 1-Figure 4A high-efficiency semi-dry fermentation device comprises a fermentation tank 1, wherein a temperature and humidity detection member is fixedly arranged in the fermentation tank 1 for detecting the temperature and humidity in the fermentation tank 1, a first feed pipe 101, a second feed pipe 102 and a sewage pipe 103 are fixedly arranged on the fermentation tank 1, sewage can enter the fermentation tank 1 through the first feed pipe 101, and after fermentation treatment, it can be discharged from the fermentation tank 1 through the sewage pipe 103, and materials can be added into the fermentation tank 1 through the second feed pipe 102, a box cover is fixedly arranged on the top of the fermentation tank 1 by bolts, a sealing gasket is arranged between the box cover and the fermentation tank 1 to improve the sealing effect, and an air inlet pipe 104 is fixedly arranged in the fermentation tank 1 for conveniently introducing gas into the fermentation tank 1, an exhaust pipe 105 is fixedly arranged on the box cover, and various gases are generated after the materials in the fermentation tank 1 are fermented, and are discharged to the outside through the exhaust pipe 105, so as to facilitate their recovery and treatment, and methane is the main product in the fermentation process. The fermentation tank 1 also includes: a rotating shaft 2 is provided in the fermentation tank 1, a plurality of stirring rods 201 are fixedly provided on the rotating shaft 2, two to twenty stirring rods 201 are provided, preferably twelve stirring rods 201, the twelve stirring rods 201 are respectively located on both sides of the rotating shaft 2, that is, there are six stirring rods on each side, and they are symmetrically arranged, a driving part for driving the rotating shaft 2 to rotate is provided on the fermentation tank 1, when in use, the rotating shaft 2 is driven by the driving part to rotate with the stirring rods 201, the materials in the fermentation tank 1 can be stirred, the fermentation materials can be prevented from agglomerating and piling up, the fermentation materials can be evenly mixed, which is beneficial to the growth and metabolism of microorganisms and improves the fermentation efficiency, and the axial cross section of the stirring rod 201 is conical, and the conical top is rounded. The transition is similar to a cone structure. The cone-shaped stirring rod 201 can reduce the resistance and friction during stirring, thereby reducing energy consumption, especially when semi-dry fermentation is adopted, the stirring effect can be improved; a heating channel 202 is opened in the stirring rod 201, and a first channel 203 and a second channel 204 are opened on the rotating shaft 2, and the two ends of the heating channel 202 are respectively connected to the first channel 203 and the second channel 204, and a heating component is arranged on the fermentation tank 1, and heat is supplied to the heating channel 202 through the heating component. During the stirring process, the stirring rod 201 can transfer heat evenly to the fermentation tank 1, so that the internal temperature distribution is even, thereby improving the anaerobic ammonia oxidation reaction.

[0024] When in use, by rotating the rotating shaft 2 in the fermentation tank 1, and fixing the stirring rod 201 on the rotating shaft 2, the material in the fermentation tank 1 can be stirred to prevent the fermentation material from agglomerating and piling up, and the fermentation material can be evenly mixed, which is beneficial to the growth and metabolism of microorganisms and improves the fermentation efficiency; by providing a heating channel 202 in the stirring rod 201, during the stirring process of the stirring rod 201, the heat can be transferred to the fermentation tank 1 through the stirring rod 201, so that the temperature of the fermentation material inside the fermentation tank 1 is uniform, thereby improving the anaerobic ammonia oxidation reaction.

[0025] Reference Figure 1 , Figure 3 and Figure 4 A rotating seat 3 is fixedly arranged on the fermentation tank 1, and one end of the rotating shaft 2 is rotatably arranged in the rotating seat 3. A first annular groove 301 and a second annular groove 302 are opened in the rotating seat 3, and one end of the first channel 203 is connected to the first annular groove 301, and one end of the second channel 204 is connected to the second annular groove 302. When in use, by opening the first annular groove 301 and the second annular groove 302 in the rotating seat 3, it is convenient to supply heat to the heating channel 202 during the rotation of the rotating shaft 2, thereby ensuring reliable heating and improving the heating effect.

[0026] Reference Figure 4 A sealing ring 303 is fixedly arranged in the rotating seat 3, and the inner ring of the sealing ring 303 is abutted against the outer wall of the rotating shaft 2. The sealing ring 303 is provided with two to six groups, preferably three groups, respectively on the side of the first annular groove 301 away from the second annular groove 302, on the side of the second annular groove 302 away from the first annular groove 301, and in the middle of the first annular groove 301 and the second annular groove 302, which can improve the sealing effect and reduce leakage.

[0027] Reference Figure 1 and Figure 3 The heating component can adopt electric heating or liquid heat exchange or gas heat exchange. Here, we design the heating component as follows: a burner 5 is fixedly arranged on the outer wall of the fermentation tank 1, and the output end of the burner 5 is connected to the first annular groove 301; an induced draft fan 6 is fixedly arranged on the outer wall of the fermentation tank 1, and the input end of the induced draft fan 6 is connected to the second annular groove 302. A gas pipe and an oxygen pipe are fixedly arranged on the burner 5 to facilitate the supply of fuel to the burner 5. When in use, the burner 5 burns the gas to generate high-temperature gas. After being extracted by the induced draft fan 6, the high-temperature gas passes through the first annular groove 301 and enters the first Channel 203, and then pass through the heating channel 202 in the multiple groups of stirring rods 201 in turn, and finally enter the second annular groove 302 through the second channel 204, and then be discharged from the induced draft fan 6, with a heating effect. Here, we can collect the gas generated by the fermentation tank 1 itself into the first gas storage tank, and then use a separator to separate the methane into the second gas storage tank for storage, and then connect the second gas storage tank with the gas pipe of the burner 5 through a vacuum pump, so that the methane in the second gas storage tank can be pumped into the burner 5 for combustion, which can reduce the use of other fuels, reduce the cost of use, and further improve the use effect.

[0028] Reference Figure 3Here, we design the driving part as: a motor 401, wherein a bracket 4 is fixedly arranged on the outer wall of the fermentation tank 1, the motor 401 is fixed on the bracket 4, a second gear 402 is fixedly arranged at the output end of the motor 401, a first gear 205 meshing with the second gear 402 is fixedly arranged at the other end of the rotating shaft 2, and a protective box 403 is fixedly arranged on the bracket 4, the motor 401, the first gear 205 and the second gear 402 are all arranged in the protective box 403, the motor 401, the first gear 205 and the second gear 402 can be protected to reduce dust entry and avoid human touch, when in use, the second gear 402 is rotated by the motor 401, the second gear 402 is meshed with the first gear 205, the rotating shaft 2 and the stirring rod 201 can be driven, so as to facilitate the stirring of the material in the fermentation tank 1 and improve the use effect.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An efficient semi-dry fermentation device, comprising a fermentation tank (1), characterized in that: Also includes: A rotating shaft (2) is arranged in the fermentation tank (1), a plurality of groups of stirring rods (201) are fixedly arranged on the rotating shaft (2), and a driving part for driving the rotating shaft (2) to rotate is arranged on the fermentation tank (1); A heating channel (202) is provided in the stirring rod (201), a first channel (203) and a second channel (204) are provided on the rotating shaft (2), two ends of the heating channel (202) are respectively connected to the first channel (203) and the second channel (204), and a heating component is provided on the fermentation tank (1).

2. A highly efficient semi-dry fermentation device according to claim 1, characterized in that: A rotating seat (3) is fixedly arranged on the fermentation tank (1), one end of the rotating shaft (2) is rotatably arranged in the rotating seat (3), a first annular groove (301) and a second annular groove (302) are provided in the rotating seat (3), one end of the first channel (203) is connected to the first annular groove (301), and one end of the second channel (204) is connected to the second annular groove (302).

3. A highly efficient semi-dry fermentation device according to claim 2, characterized in that: A sealing ring (303) is fixedly arranged inside the rotating seat (3), and the inner ring of the sealing ring (303) abuts against the outer wall of the rotating shaft (2).

4. The efficient semi-dry fermentation device according to claim 3, characterized in that: The heating component comprises: a burner (5) fixedly arranged on the outer wall of the fermentation tank (1), wherein the output end of the burner (5) is connected to the first annular groove (301); An induced draft fan (6) is fixedly arranged on the outer wall of the fermentation tank (1), and an input end of the induced draft fan (6) is connected to the second annular groove (302).

5. The efficient semi-dry fermentation device according to claim 1, characterized in that: The driving unit comprises a motor (401), A support (4) is fixedly provided on the outer wall of the fermentation tank (1), the motor (401) is fixed on the support (4), a second gear (402) is fixedly provided on the output end of the motor (401), a first gear (205) meshing with the second gear (402) is fixedly provided on the other end of the rotating shaft (2), and a protective box (403) is fixedly provided on the support (4).

6. The efficient semi-dry fermentation device according to claim 1, characterized in that: The axial cross section of the stirring rod (201) is conical.

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