Anaerobic fermentation combined ecological cycle modern agricultural biogas industrial biological system

Abstract

The utility model discloses an anaerobic fermentation combined type ecological cycle modern agricultural biogas industrial biological system which comprises a hydrolytic acidification tank and an anaerobic fermentation tank which are communicated with each other, fermentation raw materials in the hydrolytic acidification tank generate organic matter dissolution liquid under the action of hydrolytic flora, a filter screen plate is arranged in the hydrolytic acidification tank, and the filter screen plate is connected with the anaerobic fermentation tank. A brush rod is arranged on the upper side of the filter screen plate, bristles are fixedly connected to the lower end of the brush rod and make contact with the filter screen plate, the upper end of the brush rod is fixedly connected with one end of a connecting rod, and the other end of the connecting rod penetrates through a first liquid inlet pipeline located at the upper end of the hydrolytic acidification tank; organic matter dissolution liquid in the hydrolytic acidification tank is filtered by a filter screen plate and then enters the anaerobic fermentation tank for further anaerobic fermentation, so that biogas is generated, in the system, a brush rod can be driven to rotate by rotating a connecting rod, and bristles rotate along with the brush rod, so that the filter screen plate is cleaned, the filter screen plate is effectively prevented from being blocked, and the service life of the system is prolonged. And the related cleaning assembly is simple in structure and more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of fermentation systems, and specifically to an anaerobic fermentation combined ecological cycle modern agricultural biogas industrialized biological system. Background Art

[0002] Anaerobic fermentation of straw to produce biogas can solve the problem of environmental pollution on the one hand, and produce clean energy biogas on the other hand, which not only meets the needs of environmental protection, but also avoids waste of resources. After searching, a Chinese patent, authorization announcement number CN103820312B, discloses a two-phase anaerobic fermentation biogas production system, in which the acid production stage and the gas production stage are respectively carried out in two independent devices, providing the best conditions required by acid-producing bacteria and methanogens, avoiding the inhibitory effects of microorganisms and the environment on microorganisms in the single-phase anaerobic fermentation process. The two-phase anaerobic fermentation reactor can give full play to the activity of microorganisms and improve the treatment effect than the single-phase anaerobic fermentation reactor; however, in the above system, the perforated baffle is used to filter the organic leachate, which will be blocked after long-term use. The perforated baffle is difficult to clean and remove, which affects the generation of biogas. Therefore, an anaerobic fermentation combined ecological cycle modern agricultural biogas industrialization biological system is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide an anaerobic fermentation combined ecological cycle modern agricultural biogas industrialized biological system to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anaerobic fermentation combined ecological cycle modern agricultural biogas industrial biological system, including a hydrolysis acidification tank and an anaerobic fermentation tank, the hydrolysis acidification tank and the anaerobic fermentation tank are interconnected, fermentation raw materials, such as straw, food waste and the like are placed in the hydrolysis acidification tank, and fermentation liquid is added to the hydrolysis acidification tank, the fermentation raw materials produce organic matter dissolution liquid under the action of the hydrolysis bacteria, the hydrolysis acidification tank is provided with a filter screen plate inside, the upper side of the filter screen plate is provided with a brush rod, the lower end of the brush rod is fixedly connected with bristles, and the The bristles are in contact with the filter screen, the upper end of the brush rod is fixedly connected to one end of the connecting rod, and the other end of the connecting rod passes through the first liquid inlet pipe arranged at the upper end of the hydrolysis acidification tank. After the organic matter dissolution liquid in the hydrolysis acidification tank is filtered by the filter screen, it enters the anaerobic fermentation tank for further anaerobic fermentation under the action of pump force, thereby generating biogas. In this system, the brush rod can be driven to rotate by rotating the connecting rod, and the bristles rotate accordingly, thereby cleaning the filter screen, effectively preventing the filter screen from being blocked, and the structure is simple and more convenient to use.

[0005] Preferably, a fermentation liquid dispersing component is arranged at the upper position in the hydrolysis acidification tank, and the fermentation liquid dispersing component comprises a main pipeline, a second liquid inlet pipeline is connected to the main pipeline, a liquid inlet end of the second liquid inlet pipeline is located at the upper end of the hydrolysis acidification tank, a bulk liquid pipeline is connected to the main pipeline, and bulk liquid holes are evenly opened on the bulk liquid pipeline. The fermentation liquid dispersing component can evenly disperse the fermentation liquid in the fermentation raw material in the hydrolysis acidification tank, and the fermentation liquid is added along the second liquid inlet pipeline, and the fermentation liquid enters the bulk liquid pipeline along the main pipeline, and is dispersed through the bulk liquid holes and evenly distributed in the fermentation raw material, thereby ensuring a good fermentation effect.

[0006] Preferably, a driving motor is installed at the upper end of the anaerobic fermentation tank, and the output end of the driving motor is connected to a stirring shaft, and a stirring blade is fixedly connected to the stirring shaft. The driving motor drives the stirring shaft to rotate, and the stirring blade rotates accordingly to stir the organic matter dissolution liquid in the anaerobic fermentation tank, so that anaerobic fermentation can be carried out efficiently.

[0007] Preferably, a fixed sleeve is provided on the outside of the stirring shaft, one end of the electric heating wire is connected to the outer side wall of the fixed sleeve, a connecting block is fixedly connected to the inner side wall of the anaerobic fermentation tank, the other end of the electric heating wire is fixedly connected to the connecting block, and the fixed sleeve is fixed to the outside of the stirring shaft through a fixing rod. The setting of the fixed sleeve can not only protect the stirring shaft to a certain extent, but also serve as a fixing part of the electric heating wire, so that the electric heating wire can be fixed in the anaerobic fermentation tank in a horizontal fixed manner without affecting the rotation of the stirring blade.

[0008] Preferably, the lower part of the hydrolysis and acidification tank is connected to a first liquid outlet pipe, the lower part of the anaerobic fermentation tank is connected to a third liquid inlet pipe and a second liquid outlet pipe, the first liquid outlet pipe is communicated with the third liquid inlet pipe and is provided with a liquid pump, the second liquid outlet pipe is communicated with the first liquid inlet pipe, under the action of the liquid pump, the organic matter dissolution liquid in the hydrolysis and acidification tank enters the anaerobic fermentation tank for further anaerobic fermentation, thereby generating biogas, which is then circulated back to the hydrolysis and acidification tank through the second liquid outlet pipe, so that the fermentation raw materials are more fully utilized.

[0009] Preferably, a temperature sensor is provided in the anaerobic fermentation tank, and the temperature sensor and the electric heating wire group are electrically connected to an external temperature control panel, and the temperature control panel is convenient for controlling the heating temperature of the electric heating wire group, thereby controlling the anaerobic fermentation conditions.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] In the present system, the hydrolysis acidification tank and the anaerobic fermentation tank are interconnected, the fermentation raw material is put into the hydrolysis acidification tank, and the fermentation liquid is added into the hydrolysis acidification tank, the fermentation raw material produces organic matter dissolution liquid under the action of the hydrolysis bacteria, a filter screen is arranged inside the hydrolysis acidification tank, a brush rod is arranged on the upper side of the filter screen, the lower end of the brush rod is fixedly connected with bristles, the bristles are in contact with the filter screen, the upper end of the brush rod is fixedly connected with one end of the connecting rod, and the other end of the connecting rod passes through the first liquid inlet pipe arranged at the upper end of the hydrolysis acidification tank, the organic matter dissolution liquid in the hydrolysis acidification tank is filtered by the filter screen, and then enters the anaerobic fermentation tank for further anaerobic fermentation under the action of the pump force, thereby producing biogas, in the present system, the brush rod can be driven to rotate by rotating the connecting rod, and the bristles rotate accordingly, so as to clean the filter screen, effectively preventing the filter screen from being blocked, and the relevant cleaning components have a simple structure and are more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the brush rod structure of the utility model;

[0014] Figure 3 It is a top view of the main pipeline of the utility model in the hydrolysis acidification tank.

[0015] In the figure: 1-hydrolysis acidification tank, 2-anaerobic fermentation tank, 3-filter screen, 4-brush rod, 5-brush hair, 6-fermentation liquid dispersion assembly, 601-main pipeline, 602-second liquid inlet pipeline, 603-dispersion pipeline, 604-dispersion hole, 7-first liquid inlet pipeline, 8-drive motor, 9-stirring shaft, 10-stirring blade, 11-fixed sleeve, 12-electric heating resistance wire, 13-connecting block, 14-first liquid outlet pipeline, 15-third liquid inlet pipeline, 16-second liquid outlet pipeline DETAILED DESCRIPTION

[0016] 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 in 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.

[0017] Example:

[0018] See also Figure 1-3The utility model provides the following technical scheme: an anaerobic fermentation combined ecological cycle modern agricultural biogas industrial biological system, comprising a hydrolysis acidification tank 1 and an anaerobic fermentation tank 2, the hydrolysis acidification tank 1 and the anaerobic fermentation tank 2 are interconnected, fermentation raw materials, such as straw, food waste, etc., are placed in the hydrolysis acidification tank 1, and fermentation liquid is added to the hydrolysis acidification tank 1, and the fermentation raw materials produce organic matter dissolution liquid under the action of the hydrolysis bacteria, the hydrolysis acidification tank 1 is provided with a filter screen plate 3, the upper side of the filter screen plate 3 is provided with a brush rod 4, the lower end of the brush rod 4 is fixedly connected with bristles 5, and the bristles 5 are connected to the The filter screen plate 3 is in contact with the filter screen plate 3, and the upper end of the brush rod 4 is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is arranged through the first liquid inlet pipe 7 located at the upper end of the hydrolysis acidification tank 1. After the organic matter elution in the hydrolysis acidification tank 1 is filtered by the filter screen plate 3, it enters the anaerobic fermentation tank 2 for further anaerobic fermentation under the action of pump force, thereby generating biogas. In this system, the brush rod 4 can be driven to rotate by rotating the connecting rod, and the bristles 5 rotate accordingly, thereby cleaning the filter screen plate 3, effectively preventing the filter screen plate 3 from being blocked, and the structure is simple and more convenient to use.

[0019] Specifically, a fermentation liquid dispersing component 6 is arranged at the upper position inside the hydrolysis acidification tank 1, and the fermentation liquid dispersing component 6 includes a main pipeline 601, and a second liquid inlet pipeline 602 is connected to the main pipeline 601, and the liquid inlet end of the second liquid inlet pipeline 602 is located at the upper end of the hydrolysis acidification tank 1, and a bulk liquid pipeline 603 is connected to the main pipeline 601, and bulk liquid holes 604 are evenly opened on the bulk liquid pipeline 603. The fermentation liquid dispersing component 6 can evenly disperse the fermentation liquid in the fermentation raw material in the hydrolysis acidification tank 1, and the fermentation liquid is added along the second liquid inlet pipeline 602, and the fermentation liquid enters the bulk liquid pipeline 603 along the main pipeline 601, and is dispersed through the bulk liquid holes 604 and evenly distributed in the fermentation raw material, thereby ensuring a good fermentation effect.

[0020] Specifically, a driving motor 8 is installed at the upper end of the anaerobic fermentation tank 2, and the output end of the driving motor 8 is connected to a stirring shaft 9, and a stirring blade 10 is fixedly connected to the stirring shaft 9. The driving motor 8 drives the stirring shaft 9 to rotate, and the stirring blade 10 rotates accordingly to stir the organic matter dissolution liquid in the anaerobic fermentation tank 2, so that anaerobic fermentation is carried out efficiently.

[0021] Specifically, a fixed sleeve 11 is provided on the outside of the stirring shaft 9, and one end of the electric heating wire 12 is connected to the outer wall of the fixed sleeve 11. A connecting block 13 is fixedly connected to the inner wall of the anaerobic fermentation tank 2, and the other end of the electric heating wire 12 is fixedly connected to the connecting block 13. The fixed sleeve 11 is fixed to the outside of the stirring shaft 9 through a fixing rod. The setting of the fixed sleeve 11 can not only protect the stirring shaft 9 to a certain extent, but also serve as a fixing part of the electric heating wire 12, so that the electric heating wire 12 can be fixed in the anaerobic fermentation tank 2 in a horizontal fixed manner without affecting the rotation of the stirring blade 10.

[0022] Specifically, the lower part of the hydrolysis and acidification tank 1 is connected to a first liquid outlet pipe 14, the lower part of the anaerobic fermentation tank 2 is connected to a third liquid inlet pipe 15 and a second liquid outlet pipe 16, the first liquid outlet pipe 14 is connected to the third liquid inlet pipe 15 and is provided with a liquid pump, the second liquid outlet pipe 16 is connected to the first liquid inlet pipe 7, under the action of the liquid pump, the organic matter dissolution liquid in the hydrolysis and acidification tank 1 enters the anaerobic fermentation tank 2 for further anaerobic fermentation, thereby generating biogas, and then circulates back to the hydrolysis and acidification tank 1 through the second liquid outlet pipe 16, so that the fermentation raw materials are more fully utilized.

[0023] Specifically, a temperature sensor is provided in the anaerobic fermentation tank 2. The temperature sensor and the electric heating wire group 12 are electrically connected to an external temperature control panel. The temperature control panel is convenient for controlling the heating temperature of the electric heating wire group 12, thereby controlling the anaerobic fermentation conditions.

[0024] Working principle: The system includes a hydrolysis acidification tank 1 and an anaerobic fermentation tank 2. The hydrolysis acidification tank 1 and the anaerobic fermentation tank 2 are interconnected. Fermentation raw materials, such as straw, food waste, etc., are placed in the hydrolysis acidification tank 1, and fermentation liquid is added to the hydrolysis acidification tank 1. The fermentation raw materials produce organic matter dissolution liquid under the action of the hydrolysis bacteria. A filter screen plate 3 is arranged inside the hydrolysis acidification tank 1. A brush rod 4 is arranged on the upper side of the filter screen plate 3. The lower end of the brush rod 4 is fixedly connected with bristles 5. The bristles 5 are connected to the filter screen plate 3. The upper end of the brush rod 4 is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is arranged through the first liquid inlet pipe 7 located at the upper end of the hydrolysis acidification tank 1. After the organic matter eluted liquid in the hydrolysis acidification tank 1 is filtered by the filter screen plate 3, it enters the anaerobic fermentation tank 2 for further anaerobic fermentation under the action of the pump force, thereby generating biogas. In this system, the brush rod 4 can be driven to rotate by rotating the connecting rod, and the bristles 5 rotate accordingly, thereby cleaning the filter screen plate 3 and effectively preventing the filter screen plate 3 from being blocked.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An anaerobic fermentation combined ecological cycle modern agricultural biogas industrial biological system, comprising a hydrolysis acidification tank (1) and an anaerobic fermentation tank (2), characterized in that: A filter screen (3) is arranged inside the hydrolysis acidification tank (1), a brush rod (4) is arranged on the upper side of the filter screen (3), the lower end of the brush rod (4) is fixedly connected with bristles (5), the bristles (5) are in contact with the filter screen (3), the upper end of the brush rod (4) is fixedly connected to one end of a connecting rod, and the other end of the connecting rod is arranged through a first liquid inlet pipe (7) located at the upper end of the hydrolysis acidification tank (1).

2. The anaerobic fermentation combined ecological cycle modern agricultural biogas industrialization biological system according to claim 1 is characterized by: A fermentation liquid dispersing assembly (6) is arranged at an upper position inside the hydrolysis and acidification tank (1), and the fermentation liquid dispersing assembly (6) comprises a main pipeline (601), a second liquid inlet pipeline (602) is connected to the main pipeline (601), a liquid inlet end of the second liquid inlet pipeline (602) is located at the upper end of the hydrolysis and acidification tank (1), and a liquid dispersing pipeline (603) is connected to the main pipeline (601), and liquid dispersing holes (604) are evenly arranged on the liquid dispersing pipeline (603).

3. The anaerobic fermentation combined ecological cycle modern agricultural biogas industrialization biological system according to claim 2 is characterized by: A driving motor (8) is installed at the upper end of the anaerobic fermentation tank (2); an output end of the driving motor (8) is connected to a stirring shaft (9); and a stirring blade (10) is fixedly connected to the stirring shaft (9).

4. The anaerobic fermentation combined ecological cycle modern agricultural biogas industrialization biological system according to claim 3 is characterized by: A fixed sleeve (11) is arranged outside the stirring shaft (9), one end of an electric heating wire (12) is connected to the outer wall of the fixed sleeve (11), a connecting block (13) is fixedly connected to the inner wall of the anaerobic fermentation tank (2), and the other end of the electric heating wire (12) is fixedly connected to the connecting block (13).

5. The anaerobic fermentation combined ecological cycle modern agricultural biogas industrialization biological system according to any one of claims 1 to 4, characterized in that: The lower part of the hydrolysis and acidification tank (1) is connected to a first liquid outlet pipe (14), and the lower part of the anaerobic fermentation tank (2) is connected to a third liquid inlet pipe (15) and a second liquid outlet pipe (16); the first liquid outlet pipe (14) and the third liquid inlet pipe (15) are connected and provided with a liquid pump, and the second liquid outlet pipe (16) is connected to the first liquid inlet pipe (7).

6. The anaerobic fermentation combined ecological cycle modern agricultural biogas industrialization biological system according to claim 4 is characterized by: A temperature sensor is arranged in the anaerobic fermentation tank (2), and the temperature sensor and the electric heating wire group (12) are both electrically connected to an external temperature control panel.

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