CN201817480U - Novel biological nest type methane tank - Google Patents

Abstract

The utility model relates to a new biological nest type biogas digester, specifically a new type of biological nest type biogas digester which uses biological nest material as a microbial carrier to improve the fermentation efficiency of the biogas digester and increase the output of biogas, belonging to the biogas generation The technical field of the device includes the main body pool, one side of the main body pool is provided with a material inlet, the other side of the main body pool is provided with a material outlet, and the top of the main body pool is provided with an upper port of the main body pool, and the upper port of the main body pool is sealed and connected with a sealing cover plate, and the sealing cover There is an air outlet pipe on the board, and the feature is that a biological nest device is arranged in the main pool, and the biological nest device is composed of a shell and a biological nest material, holes are arranged on the shell, and the biological nest material is filled inside. The utility model overcomes the currently existing problems of low gas production efficiency and insufficient gas production in the methane pool in the winter solar greenhouse.

Description

A New Biological Nest Biogas Digester

technical field

The utility model relates to a new biological nest type biogas digester, specifically a new type of biological nest type biogas digester which uses biological nest material as a microbial carrier to improve the fermentation efficiency of the biogas digester and increase the output of biogas, belonging to the generation of biogas device technology field.

Background technique

In recent years, the application of biogas digesters in solar greenhouses has gradually gained people's attention and development. After a biogas digester is built in a solar greenhouse, the generated biogas is used to light up lamps or burn through stoves for cooking and boiling water, saving energy while saving energy. , It can also heat and heat the greenhouse, effectively solve the problems of short sunshine hours and insufficient photosynthesis in winter, and promote the healthy growth of greenhouse crops, and promote high-quality and high-yield. While the biogas lamp or biogas stove is burning, it provides carbon dioxide gas fertilizer for vegetables or fruits in the greenhouse, which can solve the problems of insufficient gas fertilizer in the greenhouse, reduce the humidity in the greenhouse, promote the metabolism of plants, and benefit the growth of plants and carbohydrates accumulation. The biogas slurry in the biogas tank can be used as foliar fertilizer and drip irrigation fertilizer after filtering, which can prevent powdery mildew, gray mold, and prevent the occurrence of aphids and mites; the biogas residue in the biogas tank can not only replace chemical fertilizers, but also improve the soil. High quality organic fertilizer. Through the comprehensive utilization of "three marshes", the fruits and vegetables grown meet the standards of pollution-free agricultural products. It is estimated that an ^800m2 solar greenhouse and an 8m3 biogas digester can produce 400-500m3 of gas annually, and can obtain 2.75 million kcal of heat (the calorific value of biogas is 5000-5500 kcal/m3), Light up the biogas lamp in the morning when the temperature in the shed is the lowest, and the biogas furnace provides 11,000 kcal of heat for the shed, raising the temperature in the shed by 2°C to 3°C, preventing freezing damage and bringing convenience to life, saving more than 2 tons per year Coal, saving about 600 yuan of funds. At the same time, it can provide 6 tons of biogas residue and 4 tons of biogas slurry a year. Each ton of biogas residue is equivalent to 80 kg of ammonium bicarbonate, and each ton of biogas slurry is equivalent to 20 kg of ammonium bicarbonate, which can save 560 kg of fertilizer every year. Biogas manure is a high-quality organic fertilizer, which not only reduces pollution, fertilizes the soil, but also makes vegetables appear in the market early, which can increase economic benefits by more than 20%. In addition, the concentration of carbon dioxide can be increased. Sometimes the carbon dioxide content in the greenhouse is less than 0.1%, which seriously affects the growth of vegetables. After burning 1 cubic meter of biogas, it can produce 0.975 cubic meters of carbon dioxide. By lighting the biogas lamp, the biogas furnace can make the carbon dioxide concentration in the greenhouse reach 0.1% to 0.13%, which meets the needs of vegetables. Compared with the production of carbon dioxide gas fertilizer by other methods, more than 200 yuan of funds can be saved.

Build a biogas digester in a sunlight vegetable or fruit greenhouse. While saving energy, the roots, stems, leaves and other waste of vegetables or fruits are used as part of the raw materials for the biogas digester. While promoting farmers to increase production and income, it can also solve the problem of greenhouse The problem of contamination by vegetable or fruit waste.

However, currently, the biogas digesters in greenhouses are all underground ordinary hydraulic household biogas digesters, and the gas production efficiency is low, resulting in insufficient biogas, and the blind pursuit of increasing the volume of biogas digesters has virtually increased investment. , Farmers are not easy to accept, which limits the development of biogas digesters in greenhouses and affects the enthusiasm of greenhouse users to build biogas digesters. Therefore, the gas production rate of biogas digesters in vegetable or fruit greenhouses has become one of the important factors restricting the development of biogas in greenhouse vegetable and fruit production areas.

The Chinese patent with the publication number CN201305595 discloses a new type of membrane biogas digester. The biogas digester is divided into three areas by adding a biological bacteria bed partition in the biogas digester. The biological bacteria bed partition is connected to the top and bottom of the biogas digester. , staggered. But this patent design is more complicated, and the peasant household is not easy to accept.

Contents of the invention

The utility model aims at the deficiencies of the prior art, and provides a novel biological nest biogas pool.

The utility model is achieved through the following technical solutions:

A new biological nest biogas digester, which includes a main pool, one side of the main pool is provided with a feed port, the other side of the main pool is provided with a discharge port, the top of the main pool is provided with an upper opening of the main pool, the upper opening of the main pool and a sealing cover plate Sealed connection, an air outlet pipe is provided on the sealing cover, and it is characterized in that a biological nest device is provided in the main body pool, and the biological nest device is composed of a shell and a biological nest material, holes are arranged on the shell, and the biological nest material is arranged on the shell internal.

The biological nest material is a long helical ribbon structure formed by forward and reverse folding of an arched structure in a cylindrical helicoid. It has a large surface area, which is conducive to the adsorption and growth of bacteria. The specific gravity of the material is not much different from that of water. It floats up and down with the flow of the biogas slurry in the hydraulic biogas tank, and fully contacts with the biogas slurry, which improves the fermentation efficiency.

The shape of the biological nest device is a cylinder or a cone.

The diameter of the holes is 12-20mm, and the distance between the holes is 18-22mm.

The thickness of the side wall of the biological nest material is 0.12-0.22 mm, and the width is 1.5-3.0 cm.

The specific surface area of the biological nest material is 2600-3100m ² /m ³ .

The specific gravity of the biological nest material is 1.02.

The gas outlet pipe is connected with the soft gas collection bag through the biogas desulfurizer.

A switch is provided on the gas outlet pipe between the biogas desulfurizer and the soft gas collection bag.

The above-mentioned soft air-collecting bag is connected with the booster pump through a conduit.

The above-mentioned booster pump is connected with the biogas lamp or the biogas cooker through a conduit.

A water storage ring is arranged on the sealing cover plate to seal the water of the biogas digester to prevent the biogas from overflowing.

The main material of the biogas digester is brick concrete or fiberglass; the shell of the biological nest device is made of plexiglass, which mainly plays the role of fixing the material of the biological nest; the material of the biological nest is made of black hard polyvinyl chloride pipe rod; The material of the soft air collection bag is red mud plastic, which is composed of red mud high-strength fiber composite with anti-aging agent and antioxidant. Many manufacturers have production, and there are various specifications and models.

The volume of the new biological nest biogas digester mentioned above is designed according to the size of the solar greenhouse and the amount of biogas, biogas slurry and biogas residue required by different vegetables and fruits. Those skilled in the art can implement this design based on common sense.

Compared with the prior art, the utility model has the following advantages:

1. A biological nest device is installed in the main pool of the utility model, and the biological nest material is filled inside as a biogas microbial carrier, which increases the microbial biomass and microbial activity in the biogas slurry in the upper part of the biogas tank, thereby improving the fermentation efficiency of the biogas tank, increasing the biogas output, and effectively The problem of insufficient biogas caused by low gas production efficiency and low gas production volume in the winter biogas digester in the solar greenhouse is avoided.

2. The utility model can improve the fermentation efficiency of feed liquid and increase the fertilizer efficiency of biogas slurry as drip irrigation fertilizer and foliar fertilizer.

3. The utility model can use wastes such as roots, stems and leaves of vegetables or fruits as partial fermentation raw materials, which solves the pollution problem caused by random piles of wastes.

4. The main pool of the utility model is connected with a soft biogas bag, and then connected with a booster pump, which can solve the problem of non-combustibility of the biogas lamp far away from the biogas pit due to the long length of the greenhouse and the low pressure in the biogas pit. The soft biogas bag stores biogas, Problems such as the direct connection of the booster pump to the biogas digester and the destruction of the biogas digester are avoided.

5. The utility model is mainly designed for the current sunlight vegetable or fruit greenhouse, with low construction cost and easy acceptance by farmers.

6. The utility model has high gas production efficiency, small footprint, simple construction, and convenient maintenance and use.

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 structural representation of biological nest device;

Fig. 4 is a schematic diagram of an arch structure;

Fig. 5 is a schematic diagram of the structure of the bio-nest material.

Among them: 1. Main body pool, 2. Feed inlet, 3. Material outlet, 4. Bio-nest device, 5. Upper mouth of the main body pool, 6. Sealing cover plate, 7. Outlet pipe, 8. Biogas desulfurizer, 9. Soft gas collection bag, 10, booster pump, 11, biogas lamp or biogas stove, 12, eyelet, 13, switch, 14, water storage ring, 15, conduit, 16, conduit, 17, biological nest material, 18, shell , 19, arched structure.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings of the description, but the protection scope of the utility model is not limited thereto.

Example 1

A new type of biological nest biogas digester, as shown in Figure 1 and Figure 2, it includes a main pool 1, one side of the main pool 1 is provided with a feed port 2, the other side of the main pool 1 is provided with a discharge port 3, and the main pool 1. There is an upper mouth 5 of the main body pool above, and the upper mouth 5 of the main pool is sealed and connected with the sealing cover plate 6. The water storage ring 14 is arranged on the sealing cover plate 6 to seal the water of the biogas digester. The air outlet pipe 7 is arranged on the sealing cover plate 6. 7 passes through the biogas desulfurizer 8 and is connected to the soft gas collection bag 9, and the gas outlet pipe 7 between the biogas desulfurizer 8 and the soft gas collection bag 9 is provided with a switch 13, and the soft gas collection bag 9 is connected to the pressurized gas bag through a conduit 15 The pump 10 is connected, the booster pump 10 is connected with the biogas lamp or the biogas stove 11 through the conduit 16, and the biological nest device 4 is arranged in the main pool 1, and the shape of the biological nest device 4 is a cylinder, and the shell 18 and the biological nest material 17; the biological nest material 17 is a long spiral ribbon structure composed of a plurality of arched structures 19, with a thickness of 0.20mm and a width of 2.0cm, as shown in Fig. 4 and Fig. 5 . The shell 18 is provided with holes 12, and the biological nest material 17 is arranged inside the shell 18, as shown in FIG. 3, the diameter of the holes is 15 mm, and the distance between the holes is 20 mm.

The material of the main body pool 1 is brick concrete or fiberglass; the shell 18 is made of plexiglass, which mainly plays the role of fixing the biological nest material; the biological nest material 17 is made of black hard polyvinyl chloride pipe rod; the soft body The material of air collection bag 9 is red mud plastics.

When in use, livestock and poultry manure and crushed straw or fruit and vegetable waste are first added through the feed port 2. Under anaerobic conditions, these organic wastes are converted into biogas through fermentation, and the generated biogas is stored in the software collection. In the air bag 9, the biogas lamp or biogas stove 11 is ignited according to the growth of fruits and vegetables in the solar greenhouse in winter. When lit, the booster pump 10 is turned on, and the switch 13 is turned off at the same time to prevent the booster pump 10 from destroying the biogas pit.

When the utility model is used, according to the different fertilizer requirements of vegetables and fruits in the greenhouse, biogas slurry is extracted as drip irrigation fertilizer or foliage fertilizer, and biogas residue is used as organic fertilizer.

The application of the new biological nest biogas digester in the greenhouse can increase the daily gas production by 20-40% compared with ordinary biogas digesters, and increase the utilization rate of biogas slurry by 10-30% due to the improved reaction efficiency.

Example 2

The difference of the novel biological nest biogas digester as described in Example 1 is that the shape of the biological nest device is a cone.

Claims (10)

1. A new type of biological nest type biogas digester, which comprises a main pool, one side of the main pool is provided with a feed inlet, the other side of the main pool is provided with a discharge port, the top of the main pool is provided with an upper mouth of the main pool, and the upper mouth of the main pool is connected to the The sealing cover plate is sealed and connected, and an air outlet pipe is arranged on the sealing cover plate. It is characterized in that a biological nest device is arranged in the main pool, and the biological nest device is composed of a shell and a biological nest material. The shell is provided with holes, and the biological nest material set inside the shell. 2. A novel biological nest type biogas digester as claimed in claim 1, characterized in that said biological nest material is a long spiral ribbon structure composed of multiple arched structures. 3. A new biological nest biogas digester as claimed in claim 1, characterized in that, the shape of the biological nest device is a cylinder or a cone. 4. A novel bio-nested biogas digester as claimed in claim 1, characterized in that the diameter of the holes is 12-20 mm, and the distance between the holes is 18-22 mm. 5. A novel biological nest biogas digester as claimed in claim 1, characterized in that the thickness of the biological nest material is 0.12-0.22mm, the width is 2.0cm, and the specific surface area and specific gravity are ^2600-3100m2 / ^m3 and 1.02. 6. A new bio-nested biogas digester as claimed in claim 1, characterized in that the said outlet pipe is connected with a soft gas collection bag through a biogas desulfurizer. 7. A new bio-nested biogas digester as claimed in claim 6, characterized in that a switch is provided on the gas outlet pipe between the biogas desulfurizer and the soft gas collection bag. 8. A new bio-nested biogas digester as claimed in claim 6, characterized in that said soft air-collecting bag is connected to a booster pump through a conduit. 9. A new bio-nested biogas digester as claimed in claim 8, characterized in that said booster pump is connected to a biogas lamp or a biogas stove through a conduit. 10. A new bio-nest biogas digester as claimed in claim 1, characterized in that a water storage ring is provided on the sealing cover to seal the biogas digester with water. the

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