CN201933083U

CN201933083U - Forage aerobic acidizing biogas tank

Info

Publication number: CN201933083U
Application number: CN201120041783XU
Authority: CN
Inventors: 李先禹
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-02-19
Filing date: 2011-02-19
Publication date: 2011-08-17
Anticipated expiration: 2021-02-19

Abstract

The utility model provides a forage aerobic acidizing biogas tank which comprises an anaerobic tank, namely a fermenting tank, and an aerobic acidizing tank, namely a water pressure chamber. The biogas tank is characterized in that the aerobic acidizing tank and a fertilizer drawing tank are arranged beside the anaerobic tank; a low pressure return pipe is arranged between the anaerobic tank and the aerobic acidizing tank; a high pressure return pipe is arranged between the aerobic acidizing tank and the fertilizer drawing tank; two material inlet, a gas outlet and a fertilizer pumping pipe are arranged on the anaerobic tank; a filter screen is arranged on a pipe orifice at the end of the low pressure return pipe, which is close to the aerobic tank; and a reflux valve is arranged on a pipe orifice at the end of the low pressure return pipe, which is close to the anaerobic tank. As the biogas tank uses rural domestic waste, straws and weeds as main raw materials, and the raw materials are fermented and decomposed to produce carbohydrates under an aerobic condition, the raw materials of biogas are changed from the original manure of people and livestock to the straws, the weeds and the domestic waste, thereby overcoming the malady that the pig manure is insufficient, fully utilizing the rural waste resources, increasing the biogas production rate, reducing the use cost of the biogas, and enabling the biogas to enter a rapid development track. Therefore, the biogas tank is suitable for being used by vast rural farmers.

Description

The aerobic acidifying formula of forage methane-generating pit

Technical field

The utility model is a kind of aerobic acidifying formula of forage methane-generating pit that is used to produce biogas, belongs to technical field of new energies.

Background technology

Biogas be a kind of by human and animal excreta or and crop stalk pass through sealed fermenting, a kind of inflammable gas that includes methane, carbonic acid gas, hydrogen sulfide and a small amount of water vapor that under the anerobe effect, is produced, the calorific value height of this combustion gas, pollution-free, purposes is wide, being a kind of renewable energy source of renewable recycle, also is one of four big emphasis energy projects of greatly developing at present of China.At present, the kind of methane-generating pit is a lot, the most general with upflowing and hydraulic type biomass pool, and upflowing and hydraulic type biomass pool are to be main raw material with the pig manure, along with the amount of raising pigs of peasant household reduces gradually, utilize pig manure to produce biogas and are subjected to very big influence, a large amount of sanitary wastes is arranged in the rural area, straw and weeds, someone attempts as raw material production biogas, because of biogas has fresh-keeping function, after fresh and alive crop stalk and weeds directly enter fermentation vat, easy conjunctiva, conjunctiva is thick more, and gas production rate is fewer, also wants clear pond at last, cause factor of created gase not high, troublesome maintenance, result of use is poor, has influenced the development of biogas cause.

Summary of the invention

In order to overcome the above-mentioned defective of existing biogas fermentation equipment, the utility model provides the aerobic acidifying formula of a kind of forage methane-generating pit, in order to make full use of sanitary wastes a large amount of in the rural area, crop stalk and weeds resource, guarantee the fermentation raw material of biogas, improve the factor of created gase of biogas, guarantee the methane-generating pit result of use, promote the development of biogas cause.

For solving its technical problem, the technical solution adopted in the utility model is: designing one, to include anaerobic pond be that fermentation vat, aerobic acidification pool are the aerobic acidifying formula of the forage methane-generating pit of water pressure house, its feature is 1. to be provided with aerobic acidification pool and to draw fertile pond on the anaerobic pond side, between anaerobic pond and aerobic acidification pool, be provided with the low pressure return line, at aerobic acidification pool and draw and be provided with the high pressure reflow pipe between the fertile pond, on anaerobic pond, be provided with two opening for feeds, an air outlet and take out fertile pipe; 2. the low pressure return line between described anaerobic pond and the aerobic acidification pool is provided with filter screen on the mouth of pipe of aerobic acidification pool one end, be provided with reflux valve on the mouth of pipe of anaerobic pond one end; Described aerobic acidification pool and draw high pressure reflow pipe between the fertile pond, its end and the intracavity inter-connection of aerobic acidification pool, its other end with draw fertile pond intracavity inter-connection; 3. the described fertilizer pipe of taking out, its end is located at the bottom of anaerobic pond, and the top board that the other end passes anaerobic pond is connected with the flash mouth of drawing fertile pond, is provided with in taking out fertile pipe and takes out fertile device.

Compared with prior art, the utility model has following characteristics and progress: because of this methane-generating pit is to be main raw material with life in the countryside refuse, straw, weeds, and decompose at ferment under aerobic conditions, produce carbohydrate, make the biogas raw material change straw weeds sanitary waste into, overcome the insufficient disadvantage of pig manure by original people's animal dung; On zymotechnique: utilized the aerobic equipment that combines with anaerobism, its raw material decomposes at ferment under aerobic conditions, only allows carbohydrate pass back into anaerobic pond and produces biogas, has overcome the easy conjunctiva of anaerobic pond and has needed the frequent disadvantage in pond clearly; Because of biogas raw materials such as sanitary waste, straw, weeds are inexhaustible, gather the convenience that feeds intake easily, waste resource in the rural area is fully used, improved the factor of created gase of biogas again, reduced the use cost of biogas, made the biogas cause march toward fast-developing track.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structural representation front view of the present utility model.

Fig. 2 is a structural representation vertical view of the present utility model.

Among the figure: 1, skylight opening, 2, airway, 3 take out fertile pipe, 4, take out fertile device, 5, the flash mouth, 6, draw fertile pond, 7, anaerobic pond, 8, opening for feed, 9, feed-pipe, 10, the high pressure reflow pipe, 11, the aerobic acidification pool of forage, 12, filter screen, 13, the low pressure return line, 14, reflux valve, 15, removable cover.

Embodiment

With reference to accompanying drawing: the anaerobic pond 7 of reinforced concrete structure that at a capacity is 10 cubic metres is other, be provided with a capacity and be 2 cubic metres brick mix structure the aerobic acidification pool 11 of forage and draw fertile pond 6, between anaerobic pond and aerobic acidification pool, be provided with a low pressure return line 13, at aerobic acidification pool and draw and be provided with a high pressure reflow pipe 10 between the fertile pond, on anaerobic pond, be connected with two opening for feeds 8 by feed-pipe 9, the anaerobic pond top is provided with a skylight opening 1 and airway 2, be provided with removable cover 15 in the skylight opening, in a side cavity on anaerobic pond feed-pipe opposite, be provided with one and take out fertile pipe 3, this is taken out to be provided with in the fertile pipe and takes out fertile device 4, take out fertile Guan Yiduan and be located at the bottom of anaerobic pond, the top board that the other end passes anaerobic pond is connected with the flash mouth 5 of drawing fertile pond; Set low pressure return line between anaerobic pond and aerobic acidification pool, this pipe is provided with filter screen 12 on the mouth of pipe of aerobic acidification pool one end, be provided with reflux valve 14 on the mouth of pipe of anaerobic pond one end; Set high pressure reflow pipe between anaerobic pond and aerobic acidification pool, an end mouth of pipe of this pipe and aerobic acidification pool intracavity inter-connection, the other end mouth of pipe and anaerobic pond chamber be intravital takes out fertile pipe 3 and is connected.

Wherein the effect of anaerobic pond is: the carbohydrate of feed-pipe and Aerobic Pond and a spot of people's animal dung, store and fermentation, produce biogas and storage; The effect of aerobic acidification pool: be to be used for storing clear liquid that anaerobic pond refluxes, to store the straw weeds, and fully contact with oxygen, bacterium and moisture content and to make it fermentation, produce carbohydrate; Describedly take out fertile device, the flash mouth, the effect of return line is: when the biogas pressure in the anaerobic pond raises, its clear liquid, flows into and draws fertile pond through the flash mouth by taking out fertile pipe, pass back into aerobic acidification pool through the high pressure reflow pipe again, take out and play the fertile effect of taking out when fertile pipe also has backflow and strong inverse flow and needs with fertilizer; The effect of 2 feed-pipes is, helps collection and the storage of people's animal dung, sanitary waste and browse, and aerobic decomposition carbohydrate; Filter screen, the effect of reflux valve is: when anaerobic pond produces biogas, reflux valve cuts out automatically, the clear liquid of anaerobic pond returns into aerobic acidification pool, when using biogas, reflux valve is opened automatically, and the carbohydrate of aerobic acidification pool enters anaerobic pond, filter screen can only allow the interior carbohydrate of aerobic acidification pool enter anaerobic pond, prevents that residue from stopping up reflux valve; The effect of drawing fertile pond is: suitably enlarge the fertile air storage amount of storage, be convenient to beat fertilizer and take out fertilizer.

During use: the sanitary waste that collect every day, waste paper, pericarp, the sugarcane skin, useless meat (directly into the pond), vegetable seeds shell or beans shell 5-6 jin, be placed in the pigsty stand-byly, the refuse after feed-pipe rotted 2-3 days advances anaerobic pond, after replenish rapidly again, and straw weeds of often adding aerobic acidification pool are when producing biogas, reflux valve cuts out automatically, the clear liquid of anaerobic pond is by taking out fertile pipe, and flash mouth, return line enter aerobic acidification pool; When using biogas, reflux valve is opened automatically, and the carbohydrate of aerobic acidification pool is through filter screen, the low pressure return line, and reflux valve enters anaerobic pond; Along with the continuous aerogenesis of biogas with use gas, be immersed in the refuse of aerobic acidification pool and feed-pipe, constantly contact with moisture content with the oxygen bacterium, constantly produce carbohydrate, the backflow anaerobic pond produces biogas.

Logical experiment and exploration in a few years, one 10 cubic metres methane-generating pit, 2 cubic metres aerobic acidification pool can consume 1000 kilograms of straw weeds the whole year, two feed-pipes can consume 900 kilograms of bright grass and sanitary waste the whole year, add a spot of people's animal dung, can satisfy the perennate of the family of 3-4 mouth fully and apply flexibly biogas, the peasant household that is fit to vast rural area uses.

Claims

1. the aerobic acidifying formula of forage methane-generating pit, comprise that anaerobic pond is that fermentation vat, aerobic acidification pool are water pressure house, it is characterized in that: be provided with aerobic acidification pool and draw fertile pond on the anaerobic pond side, between anaerobic pond and aerobic acidification pool, be provided with the low pressure return line, at aerobic acidification pool and draw and be provided with the high pressure reflow pipe between the fertile pond, on anaerobic pond, be provided with two opening for feeds, an air outlet and take out fertile pipe.

2. the aerobic acidifying formula of forage according to claim 1 methane-generating pit is characterized in that: the low pressure return line between described anaerobic pond and the Aerobic Pond, on the mouth of pipe of aerobic acidification pool one end, be provided with filter screen, and on the mouth of pipe of anaerobic pond one end, be provided with reflux valve; High pressure reflow pipe between described anaerobic pond and the aerobic acidification pool, its end and the intracavity inter-connection of aerobic acidification pool, its other end with draw the intracavity inter-connection in fertile pond.

3. the aerobic acidifying formula of forage according to claim 1 methane-generating pit is characterized in that: the described fertilizer pipe of taking out, and its end is located at the bottom of anaerobic pond, and the top board that the other end passes anaerobic pond is connected with the flash mouth of drawing fertile pond, is provided with in taking out fertile pipe and takes out fertile device.