CN205635576U - Integration methane -generating pit - Google Patents

Abstract

The utility model discloses an integrated biogas pond, which comprises a biogas pond body, a diversion baffle, a biomass input pipe, a cooked material output pipe, a waste liquid overflow pipe and a biogas export pipe. The biogas pond body is a cylinder The sealed tank is installed horizontally along the axial direction, and its interior is divided into a clarification area and a biogas area from bottom to top. The pipes are arranged on the side wall of the biogas tank body, the waste liquid overflow pipe is arranged on the biogas tank body, and the biogas outlet pipe is arranged on the top of the biogas area. The utility model can mechanically input the biological material before fermentation and output the cooked material after fermentation under the airtight condition at the same time, which reduces the labor intensity of manual feeding of materials in the traditional biogas production mode and the impact on the environment during the material replacement process; fermentation During the process, the pressure of biogas generation and delivery is stable, and there will be no potential safety hazards; the volume of traditional biogas digesters is reduced by half.

Description

An integrated biogas pond

technical field

The utility model relates to a biogas pit, in particular to an integrated biogas pit.

Background technique

At present, in rural areas, feces and wastewater discharged from residents' lives and poultry breeding are often used to produce biogas, but traditional biogas digesters cannot meet the fermentation conditions due to poor sealing, which affects the production of biogas. It is mainly manifested in: the internal flow state is unreasonable, and it is impossible to realize the simultaneous entry and exit of materials, the gas production is difficult to stabilize, and there are problems such as large initial output and small later output; thus causing pressure instability and potential safety hazards.

Utility model content

The technical problem solved by the utility model is to provide an integrated biogas digester to solve the above-mentioned shortcomings in the background technology.

The technical problems solved by the utility model are realized by the following technical solutions: an integrated biogas digester, including a biogas digester body, a diversion baffle, a biomass input pipe, a cooked material output pipe, a waste liquid overflow pipe, and a biogas outlet Pipe and inspection port, the biogas tank body is a cylindrical sealed tank, installed horizontally along the axial direction, and its interior is divided into a clarification area and a biogas area from bottom to top, and the height of the clarification area is 2/3 of the diameter of the cylinder; The biogas tank body can be made of corrosion-resistant materials such as glass fiber reinforced plastics, plastics or non-metallic materials, and the left and right ends of the cylinder can also be designed as domes. The diversion baffle is a rectangular plate with the same material as that of the biogas tank body; the bottom end of the diversion baffle is vertically and seamlessly installed on the bottom of the biogas tank body, the height is 2/3 of the diameter of the cylinder, and the left end ( or right end) vertically and seamlessly installed on the left side wall (or right side wall) of the biogas tank body, and the other end is 0.6 meters away from the right side wall (or left side wall) of the biogas tank body. Both the biomass input pipe and the clinker output pipe are arranged on the side wall of the biogas tank body, and the side wall must be the side where the diversion baffle is installed, and the two are arranged with the diversion baffle as the axis of symmetry, and The two pipes extend to the clarification area in parallel, and the bottom ends of the two pipes are about 0.2 meters away from the bottom of the biogas tank body. The waste liquid overflow pipe is arranged on the biogas tank body and is a P-shaped drainage pipe placed horizontally. The plane of its water inlet is consistent with the height of the diversion partition, and its U-shaped trap is lower than the liquid level in the pool. The biogas outlet pipe is arranged at the highest point on the top of the biogas area, and a check valve is arranged on it.

In the utility model, further: the inspection port is set on the upper part of the biogas pool body, and its aperture is not less than 0.6 meters, and the inspection port is provided with an openable cover, which has sealing requirements.

In the utility model, further: the biogas area is provided with a pressure monitoring device and a biogas concentration monitoring device.

Beneficial effects of the utility model: under airtight conditions, the biological material before fermentation and the cooked material after fermentation can be mechanically input at the same time, which reduces the labor intensity of manual feeding of materials in the traditional biogas production mode and the environmental impact during the material replacement process. During the fermentation process, the biogas production and delivery pressure are stable, and there will be no potential safety hazards; the volume of the traditional biogas digester is reduced by half, and it can be processed and manufactured in the factory, and the overall installation on site is simple and convenient, reducing the floor area, civil engineering and installation The investment cost is quite promotional.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the top view of the utility model;

Fig. 3 is the left view of the utility model;

Fig. 4 is the front view of the utility model.

In the figure: 1-digester body, 2-diversion partition, 3-biomass input pipe, 4-cooked material output pipe, 5-waste overflow pipe, 6-biogas outlet pipe, 61-return valve, 7- Inspection port, 8- Clarification area, 9- Biogas area.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific illustrations.

Embodiment: As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, it includes a biogas tank body 1, a diversion plate 2, a biomass input pipe 3, a cooked material output pipe 4, a waste liquid overflow pipe 5, and biogas Outlet pipe 6 and inspection port 7; the biogas tank body 1 is a cylindrical sealed tank installed horizontally along the axial direction, and its interior is divided into a clarification area 8 and a biogas area 9 from bottom to top, and the height of the clarification area 8 is a cylinder 2/3 of the diameter of the body, the fermentation material is separated from solid and liquid in this area, and its height is the maximum height of the material. The biogas tank body 1 can be made of corrosion-resistant materials such as fiberglass, plastic or non-metallic materials. The left and right ends of the cylinder can also be designed as domes, and the force of the latter is more uniform and reasonable after being buried underground. The diversion partition 2 is a rectangular plate with the same material as that of the biogas tank body 1; the bottom end of the diversion partition 2 is vertically and seamlessly installed on the bottom of the biogas digester body 1, and its height is 2/3 of the diameter of the cylinder , its left end (or right end) is vertically and seamlessly installed on the left side wall (or right side wall) of the biogas tank body 1, and the other end is 0.6 meters away from the right side wall (or left side wall) of the biogas tank body 1, leading The main function of the flow partition 2 is to prevent the biomass from being mixed into the cooked material and discharged without proper fermentation when the biomass is added. The biomass input pipe 3 and the clinker output pipe 4 are all arranged on the side wall of the biogas tank body 1, and the side wall must be the side where the diversion baffle 2 is installed. The axis of symmetry is set, and the two pipes extend to the clarification area 8 in parallel, and the bottom ends of the two pipes are about 0.2 meters away from the bottom of the biogas tank body 1 . The waste liquid overflow pipe 5 is arranged on the biogas tank body 1, and is a P-shaped drainage pipe placed horizontally. In the process of adding biomass or fermentation, the volume of the material in the biogas tank body 1 increases, and the clarified liquid in the upper part of the clarification area 8 is discharged through the waste overflow pipe 5, which can ensure that the gas pressure in the biogas area 9 is reasonable during the fermentation process. scope. The biogas outlet pipe 6 is set at the highest point of the top of the biogas area 9, and a check valve 61 is arranged on it, the purpose is to only allow the biogas to be discharged from it, and to prevent air from entering the biogas area 9, so as to avoid accidents; the maintenance The port 7 is located on the upper part of the biogas tank body 1, and its aperture is not less than 0.6 meters. The inspection port 7 is provided with an openable cover, which has sealing requirements. The biogas area 9 is provided with a pressure monitoring device and a biogas concentration monitoring device.

Working principle: This utility model can be used for the fermentation treatment of feces and waste water discharged from the life of rural residents and poultry breeding at the same time. The biological material for fermentation can be human and livestock manure, or a mixture with waste such as biological straw, etc., which belongs to the solid-liquid mixed state; Among them, human and livestock manure is fed into the biogas digester body 1 at any time through gravity transportation through household sewage pipes, and the mixture of livestock manure and waste such as biological straw is added in a centralized manner in stages; its working principle is as follows:

The biomass that needs to be mechanically added for the first time is injected into the clarification area 8 in the biogas digester body 1 through the biomass input pipe, and the gradually increased biomass bypasses one side of the diversion plate 2 and flows into the other side, and is added in stages each time The height of the biological material must be lower than the height of the diversion plate 2, and the reserved volume capacity should meet the amount of domestic feces and wastewater added at any time during the fermentation stage. After the concentrated addition is completed, the biological material enters the fermentation and clarification stage;

The biogas produced by fermentation gradually fills the biogas area 9. When the biogas pressure reaches the set value, the check valve 61 is opened through the drive of the pressure monitoring device, and the biogas is transported to the user unit through the biogas outlet pipe 6; when the biogas output increases, the biogas area 9 When the internal pressure also increases thereupon, and in the fermentation process, with the expansion of the biomass volume, when the height of the material exceeds the water inlet of the waste overflow pipe 5, the clarified liquid in the upper part of the clarification zone 8 is formed by the waste liquid The overflow pipe 5 is discharged, and as the liquid level becomes stable, the pressure in the biogas area 9 is adjusted to the set range;

As the biogas production continues to drop steadily to the set value range, the check valve 61 is closed by the biogas concentration monitoring device, and a fermentation process is completed in stages. The cooked material output pipe 4 is mechanically discharged, and at the same time, the biomass to be fermented is injected into the bottom of the clarification zone 8 through the biomass input pipe, and the newly injected biomass slowly pushes the cooked material on the feeding side to bypass the other end of the diversion plate 2 The other side of the clarification zone 8 is gradually discharged until the newly added biomass reaches the required height, and then enters the fermentation and clarification stage again;

The integrated biogas digester can be used for the fermentation treatment of feces and wastewater discharged from rural residents' life and poultry breeding. It has the characteristics of organic matter digestion biogas digester, sewage anaerobic treatment tank and clarification and separation tank. Materials are mechanically fed in and out at the same time under airtight conditions. Domestic waste can be added at any time and processed continuously, which reduces labor intensity and the impact of material replacement on the environment. Installation, reducing floor space, reducing civil engineering and installation investment costs, has great technical and economic advantages.

The above shows and describes the basic principles and main features of the present utility model and the advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and description are only illustrations The principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed for protection. The desired protection is defined by the appended claims and their equivalents.

Claims (7)

1. null1. an integrated marsh gas pond，Including biomass pool body (1)、Diaphragm (2)、Biological material input pipe (3)、Ripe material outlet tube (4)、Waste liquid overflow pipe (5) and biogas delivery line (6)，It is characterized in that: described biomass pool body (1) is cylindrical hermetically sealed can，It is horizontally mounted vertically，Settling section (8) and biogas district (9) are set up from the bottom to top separately inside it，Described diaphragm (2) bottom is the most seamless is installed on the bottom in biomass pool body (1)，Described biological material input pipe (3) and ripe material outlet tube (4) are all located on the sidewall of biomass pool body (1)，Described waste liquid overflow pipe (5) is located in biomass pool body (1)，Its inlet end plane is highly consistent with diaphragm (2)，Its other end is the trap of " U " type structure，Described biogas delivery line (6) is located at the top of biogas district (9)，Which is provided with non-return valve (61).
2. A kind of integrated marsh gas pond the most according to claim 1, is characterized in that: described biomass pool body (1) and diaphragm (2) all use resistant material to make.
3. A kind of integrated marsh gas pond the most according to claim 1, it is characterized in that: the height of described diaphragm (2) is the 2/3 of described biomass pool body (1) diameter, its one end is the most seamless to be installed on a sidewall of described biomass pool body (1), the other end another sidewall 0.6 meter away from biomass pool body (1).
4. A kind of integrated marsh gas pond the most according to claim 1, it is characterized in that: described biological material input pipe (3) and ripe material outlet tube (4) are that axis of symmetry is installed with diaphragm (2), and two manage the parallel settling section (8) that extends, two pipe bottoms away from biomass pool body (1) bottom be 0.2 meter.
5. A kind of integrated marsh gas pond the most according to claim 1, is characterized in that: the described trap of " U " type structure is less than biomass pool body (1) interior liquid level.
6. A kind of integrated marsh gas pond the most according to claim 1, is characterized in that: be additionally provided with access hole (7) in described biomass pool body (1), described access hole (7) is provided with openable lid body.
7. A kind of integrated marsh gas pond the most according to claim 1, is characterized in that: be provided with pressure monitoring device and biogas concentration measurement and control device in described biogas district (9).