CN201296754Y - Frigid zone fermenting bed soft marsh gas generator - Google Patents

Abstract

Due to the structural characteristics of traditional biogas generators in cold zone fermentation bed, most biogas digesters cannot be used normally in winter in the alpine regions of northern my country. In order to ensure the normal use of biogas digesters, biogas digesters can only be built in greenhouses or in When building a biogas digester, thermal insulation measures such as "brick body plus benzene board", "overlapped brick arch" or "single brick arch" are taken to cover furnace ash, which greatly increases the cost of building the pool and limits the biogas The promotion of large-scale ponds is also the main reason why it is difficult to promote biogas in rural areas in alpine regions. The composition of the utility model includes: a soft biogas generating device (1), the soft biogas generating device (1) adopting light wave to absorb soft materials is connected with the internal combustion type fermentation bed (2) equipped with cushion material inside, and the soft biogas generating device (1) An air outlet (3) and a feed inlet (4) are provided. The utility model is used for treating rural solid waste.

Description

Fermentation bed soft biogas generator in cold zone

Technical field:

The utility model relates to a soft biogas generator for a fermentation bed in a frigid zone.

Background technique:

Due to the structural characteristics of traditional biogas digesters, most of the biogas digesters cannot be used normally in winter in the alpine region of northern my country (49 degrees north latitude). In the greenhouse, or when building a biogas digester, thermal insulation measures such as "brick body plus benzene board", "overlapping brick arching" or "single brick arching" to cover furnace ash are taken, which greatly increases the construction cost. The cost of the pond limits the large-scale promotion of biogas digesters, which is also the main reason why it is difficult to promote biogas in rural areas in alpine regions.

Because the raw material of traditional biogas fermentation technology must be feces, there are certain limitations in the use of materials, and it is easy to "crust", coupled with inadequate management and services, resulting in slow development of biogas in rural areas.

Traditional biogas digesters are generally buried underground and are greatly affected by the ambient temperature. The general situation is that in summer, the gas production is large and cannot be used. It must be exhausted in time. Bad pool), and in winter because of low temperature and insufficient gas production, it cannot be used normally, especially in the north, where it can only be used for half a year, resulting in waste of the pool.

Traditional biogas digesters must be fed, discharged and stirred every day before they can be used, and they have to be discharged once a year, which is very inconvenient in management.

Most of the traditional biogas digesters are made of bricks, and the total cost is more than 3,000 yuan. However, because the biogas contains hydrogen sulfide, it is very corrosive to cement. In addition, in the northern alpine regions, it is easy to freeze and crack in winter. Leakage occurs, resulting in the phenomenon of "good for one year, leaky for two years, and discarded for three years" in the existing northern rural biogas.

The maintenance of traditional biogas digesters is labor-intensive and time-consuming. During maintenance, all raw materials need to be cleaned up before re-plastering and sealing.

The construction of traditional biogas digesters is a labor-intensive and time-consuming project, and it takes a month before and after normal use. Moreover, because it is a single construction, it can easily achieve standardized production in promotion, so the quality is difficult to guarantee.

Due to the semi-continuous fermentation method used in traditional biogas digesters, the fermentation is often incomplete and incomplete. When a large amount of fertilization is required, raw and clinker are mixed, and various pathogens cannot be effectively killed. The comprehensive utilization of biogas slurry and biogas residues is limited. big impact.

Invention content:

The purpose of the utility model is to provide a fermented bed soft biogas generator in frigid zone with strong anti-seismic performance, well-sealed tank body, not easy to break and move, no encrustation on the liquid surface, high gas production and low price.

Above-mentioned purpose realizes by following technical scheme:

Soft biogas generator for fermented bed in frigid zone, its composition includes: soft biogas generating device, the two sides of the soft biogas generating device are connected with internal combustion type fermentation bed with bedding inside, and the soft biogas generating device is provided with an air outlet with feed port.

The beneficial effects of the utility model:

1. The design of the utility model is scientific: rectangular design, composed of a whole, can implement standardized production, good heat collection and heat preservation effect, small footprint, convenient loading, automatic slag discharge;

2. The utility model has good sealing performance: good air tightness, no water seepage, no air leakage, and convenient maintenance;

3. The utility model has excellent performance: corrosion resistance, acid and alkali resistance, aging resistance, shock resistance, pressure resistance, and ground freezing may damage the underground concrete biogas digester, but the utility model has strong elasticity and stretch resistance, and will not Cracked by permafrost, it is suitable for use in cold northern regions and is easy to move.

5. The utility model is easy to install: foldable, easy to carry, installed on the ground, ready to use, not limited by geographical conditions, and easy to move;

6. The heat collection effect of the utility model is good: the tank body is added with light-collecting and heat-conducting materials during the production process, coupled with nano-light wave adsorption materials, so that the temperature in the tank body is significantly increased; because the temperature of biogas production is between 10°C and 60°C The higher the temperature, the greater the gas production. The utility model can maintain a temperature of 30 degrees in the cold weather in the north, so it can be used normally in winter.

7. The utility model has good heat preservation effect: in the production process, an external heat preservation device is specially designed to keep the tank relatively heat-preserved, which not only ensures normal gas production in winter, but also increases the gas production in the remaining seasons. Due to the difference in temperature between day and night, methanogens will become "sick" or even die, so insulation will reduce the mortality of methanogens.

8. The utility model has low cost and long service life: the ex-factory price of each set is between 2000 and 2500 yuan based on 8 cubic meters, and the service life can reach more than 10 years.

Description of drawings:

Accompanying drawing 1 is the structural representation of the utility model.

Accompanying drawing 2 is the plan view of accompanying drawing 1.

Detailed ways:

Example 1:

Soft biogas generator for fermentation bed in frigid zone, its composition includes: soft biogas generator 1, the soft biogas generator 1 using light wave adsorption soft material is connected to internal combustion fermentation bed 2 with fermentable bedding inside , the soft biogas generator 1 is provided with an air outlet 3 and a feed port 4 .

Claims (1)

1. a frigid zone fermentation bed software biogas generator, its composition comprises: the software biogas generating device, it is characterized in that: described software biogas generating device both sides are connected with the inner fermentation bed that the bedding and padding internal combustion type is housed, and described software biogas generating device is provided with production well and opening for feed.

Images