CN201473533U

CN201473533U - Multifunctional straw methane tank

Info

Publication number: CN201473533U
Application number: CN2009202274392U
Authority: CN
Inventors: 蔡宏柯
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-14
Filing date: 2009-08-14
Publication date: 2010-05-19
Anticipated expiration: 2019-08-14

Abstract

The utility model relates to a multifunctional straw methane tank, which belongs to the technical field of manufacturing renewable energy source fermentation apparatuses. The multifunctional straw methane tank comprises a fermenting tank, a gas storage hood, a feeding tank, a discharging tank and a discharging pump; the gas storage hood is installed inside a gas hood chute on the upper portion of the fermenting tank; a stirring shell breaking machine is mounted inside the fermenting tank; the feeding tank and the discharging tank are respectively mounted on the left side and the right side of the fermenting tank; the discharging pump is installed inside the discharging tank; a spring fixing cylinder is mounted on the outer wall of the upper portion of the fermenting tank; a pressure adjusting bolt and a pressure adjusting spring are mounted inside the spring fixing cylinder; the gas storage hood is fixed onto the pressure adjusting bolt; and a heat-preservation shed is movably mounted on the pressure adjusting bolt. The multifunctional straw methane tank can permanently keep constant-pressured gas-supply state after being set according to demands of users, automatically stir straws and break shells, lead scum inside the fermenting tank to permanently be free of crusting layers, and achieve rapid gas production and short starting time of a new tank. The arranged heat-preservation shed is capable of ensuring normal gas production and gas supply under low-temperature conditions, and the methane tank is convenient in maintenance and refueling, suitable for mechanized production in a factory, and particularly adaptable to full-straw fermentation to manufacture methane.

Description

The multifunction straw methane-generating pit

Technical field:

The utility model relates to a kind of multifunction straw methane-generating pit, belongs to renewable energy source fermentation equipment manufacturing technology field.

Background technology:

Biogas is as a kind of green, environmental protection, the reproducible energy, can handle and utilizes the stalk in rural area and human and animal excreta, can realize that again the independent air feed of single household uses, and is subjected to the welcome of wide farmers deeply.But the employed methane-generating pit 85% in rural market all is traditional concrete structure hydraulic type biomass pool at present, and also having sub-fraction is novel biomass pool built from glass fiber reinforced plastic, and all there is following defective in these two kinds of methane-generating pits.

(1) the easy crack of pond body: after using for some time, because the acid-base material in the pond after the fermentation is to the corrosion of pond body, when several days or for some time were not used biogas, biogas then expanded in pond body the inside and causes body crack, pond, stays potential safety hazard for the normal use of biogas.And in a single day the pond body produces the crack, just must empty all fermented products in the pond, carries out swabbing then and squeegees, and is prone to the biogas poisoning in the mending course, and maintenance difficulty is big.

(2) build pond cost height: the domestic methane tank of building a 8-10 cubic meter needs about 2000 yuan of funds, adds to change the kitchen, change the lavatory, change the expense of pigsty, and gross investment needs about 3500 yuan.And in the most Rural areass of China, peasant household all is the self-raised fund construction of marsh gas tank, and part peasant household drops into limited in one's ability, can't realize the dream of usefulness gas.

(3) easily crust in the pond: in the process of using stalk fermentation, fermentation raw material easily forms scum layer at the upper strata crust, influences biogas and enters expansion box, makes the methane gas producing rate reduce even stop aerogenesis.

(4) pond internal gas pressure shakiness: because the air chamber volume of expansion box can not change, when the pond internal gas pressure changes, can not keep pressure constant state, change with variation of ambient temperature; Summer the air pressure height, gas toos many or too much for use; Winter, air pressure was low, and gas is not enough, even did not have gas to use.

In order to address the above problem, someone has designed a kind of air chamber volume energy and has changed, the cover-floating type plastic methane tank that can keep pressure constant state, the patent No. is " 03242633.X ", notification number is the cover-floating type plastic methane tank of " CN2611380Y ", though the floating cover of this methane-generating pit can float, the air chamber volume energy is changed, but because fixed reticulated structure counterweight is adopted in the bottom of air chamber, also there is following deficiency, the one, when floating cover moves up and down, the part stalk easily passes reticulated structure and enters in the floating cover, floating cover is higher than mesh portion when mobile stalk is not stirred, and duration of service, the long slightly scum layer crust that can occur equally made the methane gas producing rate reduce even stop the phenomenon of aerogenesis.The 2nd, when scum layer crust occurring and maybe will change material methane-generating pit in, must will float the whole taking-up of cover, 1-2 people can't finish at all, brings great inconvenience to user and manager.

Summary of the invention:

The purpose of this utility model is: provide a kind of air chamber volume to change with the pressure variation in the methane-generating pit, the biogas that makes output is constant voltage, and the user can oneself set and regulate pressure; Carry whipping appts and hulling machine in the gas hood, crust layer does not appear in scum silica frost in the pond, and one people can finish when changing in the methane-generating pit material, and fermentation raw material is not limited to, and is applicable to the multifunction straw methane-generating pit that dry type fermentation and wet type are fermented.

The utility model is to realize above-mentioned purpose by following technical solution:

This multifunction straw methane-generating pit is made of fermentation vat, storage cover, charging pond, material-output tank, discharging pump and overflow port, storage cover is equipped with on the top of fermentation vat, the left and right sides is equipped with charging pond and material-output tank respectively, discharging pump is housed in the material-output tank, discharge port is equipped with in the discharging pump upper end, and overflow port also is equipped with on the top that material-output tank one side is housed of fermentation vat; It is characterized in that: a circle gas hood chute is housed on the inwall on described fermentation vat top, and the cover wall of storage cover is sleeved in the gas hood chute; At least three spring stationary magazine creels are housed on the outer wall on fermentation vat top, in the spring stationary magazine creel regulator bolts are housed, be set with pressure spring on the regulator bolts, storage cover is fixed on the regulator bolts by the otic placode on it.

One installation base is arranged in the described storage cover, and the stirring peeler is equipped with in activity on the installation base.

Be movably installed with the insulation canopy on the described regulator bolts.

The utility model beneficial effect compared with prior art is:

The regulator of this multifunction straw methane-generating pit can be set the back according to customer need and keep the constant pressure air feeding state forever, in aerogenesis and process with gas, by stirring the purpose that peeler reaches stirring and broken shell, make in the pond scum silica frost occur the crust layer never, be specially adapted to stalk fermentation and produce biogas.Aerogenesis is fast, and new pond is short start time; After charging was finished, air can empty to 95%, 24 hour and just can produce biogas (methane content 60%), can just use gas, (methane content 65%) always in 48 hours.The top, pond can be provided with the insulation canopy that uses for the north, and guaranteeing can normal gas producing and air feed under low temperature environment.The maintenance and the convenience of reloading, 1-2 people just can finish in a short period of time; The fermentation raw material variation can use stalk to be fermentation raw material fully, but both dry type fermentations, but also wet type fermentation.Safety and sanitation the liquid dung overflow phenomena can not occur, adapt to millwork production, pond type variation, and the pond type can or reduce with customer need expansion.Just can be used as the large-sized biogas engineering after the body combination of a plurality of ponds, the ight soil that can be used for the intensive culture field is handled.

Description of drawings:

Fig. 1 is the main TV structure synoptic diagram of multifunction straw methane-generating pit;

Fig. 2 is the plan structure synoptic diagram of multifunction straw methane-generating pit;

Fig. 3 is the structural representation of multifunction straw methane-generating pit band insulation canopy.

Among the figure: 1, fermentation vat, 2, storage cover, 3, the charging pond, 4, material-output tank, 5, the gas hood chute, 6, spring stationary magazine creel, 7, regulator bolts, 8, pressure spring, 9, discharging pump, 10, overflow port, 11, otic placode, 12, stir peeler, 13, installation base, 14, discharge port, 15, the insulation canopy.

Embodiment:

This multifunction straw methane-generating pit is made of fermentation vat 1, storage cover 2, charging pond 3, material-output tank 4, discharging pump 9, overflow port 10 and discharge port 14, storage cover 2 is equipped with on the top of fermentation vat 1, the left and right sides is equipped with charging pond 3 and material-output tank 4 respectively, discharging pump 9 is housed in the material-output tank 4, discharge port 14 is equipped with in discharging pump 9 upper ends, and overflow port 10 also is equipped with on the top that material-output tank 4 one sides are housed of fermentation vat 1.One circle gas hood chute 5 is housed on the inwall on described fermentation vat 1 top, and a circle cover wall movable set of storage cover 2 is in gas hood chute 5; Make storage cover 2 and fermentation vat 1 form the integral body of sealing fully, provide good anaerobic environment to fermented product.At least three spring stationary magazine creels 6 are housed on the outer wall on fermentation vat 1 top, regulator bolts 7 are housed in the spring stationary magazine creel 6, be set with pressure spring 8 on the regulator bolts 7, storage cover 2 by the otic placode 11 that is shaped on it by the upper end of fixed by nut at regulator bolts 7.The top of described storage cover 2 the insides is shaped on an installation base 13, and activity is equipped with and is stirred peeler 12 on the installation base 13, when adopting the dry type fermentation process, can take off stirring peeler 12; When adopting the wet type fermentation process, will stir peeler 12 and load onto.Be movably installed with insulation canopy 15 on the described regulator bolts 7, to guarantee energy normal gas producing and air feed under northern low temperature environment, insulation canopy 15 (referring to accompanying drawing 1-3) can not be installed in the higher south of temperature.

After the stalk of this multifunction straw methane-generating pit is directly put into fermentation vat 1, storage cover 2 is sleeved in the gas hood chute 5, again storage cover 2 is fixed tightly in the upper end of regulator bolts 7 by nut by the otic placode on it 11, move up and down with regulator bolts 7, under the effect of pressure spring 8, set the back according to customer need and keep the constant pressure air feeding state forever.

Charging pond 3 can directly be connected with kitchen, lavatory, pigsty, and human and animal excreta is flowed into the fermentation vat 1 of anaerobically fermenting agent set by charging pond 3.The Link Port in charging pond 3 is located at fermentation vat 1 middle part, and the human and animal excreta of inflow just enters the centre of sweathouse, has guaranteed the abundant fermentation of raw material, improves factor of created gase.

Material-output tank 4 is connected 20 centimeters places above fermentation vat 1 bottom, and discharging pump 9 fits over material-output tank 4 the insides, fluid or viscid fermented liquid can be extracted in the material-output tank 4.Overflow port 10 is positioned at from 5 centimeters places, fermentation vat 1 top, and fermented liquid passed through overflow port 10 automatic overflows in material-output tank 4 when the fermented product liquid level was too high.

Human and animal excreta enter fermentation vat 1 back usually natural sedimentation be divided into four layers, by last under be respectively scum layer, supernatant liquid, active coating and sediment layer.The 20 centimeters sediment layers in the utility model bottom can guarantee schistosome ovum, roundworm egg, hookworm ovum, the intestinal bacteria residence time in device, reach the purpose of killing various worm's ovums.

When this multifunction straw methane-generating pit uses, when beginning fermentation gas in the fermentation vat 1, biogas pressure is greater than the power of the pressure spring 8 of user's setting, 2 of storage covers drive regulator bolts 7 and rise, make pressure spring 8 compressions, it is big that volume in the storage cover 2 becomes, and biogas pressure reduces, and makes the biogas pressure of output constant.When biogas pressure reduced gradually in the biogas use, 8 of pressure springs drive regulator bolts 7 and storage cover 2 descends, and the volume in the storage cover 2 diminishes, and biogas pressure raises, and then makes the biogas pressure of output constant.And storage cover 2 is in the state of moving up and down for a long time when using, be installed in stirring peeler 12 on the installation base 13 of storage cover 2 the insides along with moving up and down, fermentation raw material is carried out certain stirring, microorganism is fully contacted with fermentation raw material, break demixing phenomenon simultaneously, active coating is expanded in whole fermented liquids, effectively prevented the generation of crust phenomenon, guarantee pond temperature homogeneous, promoted gas-liquid separation.When adopting the dry type fermentation process, will stir peeler 12 and take off; When adopting the wet type fermentation process, will stir peeler 12 and load onto.This multifunction straw methane-generating pit is particularly suitable for all adopting stalk fermentation to produce biogas.

Claims

1. multifunction straw methane-generating pit, it is made of fermentation vat (1), storage cover (2), charging pond (3), material-output tank (4) and discharging pump (9), storage cover (2) is equipped with on the top of fermentation vat (1), the left and right sides is equipped with charging pond (3) and material-output tank (4) respectively, discharging pump (9) is housed in the material-output tank (4), discharge port (14) is equipped with in discharging pump (9) upper end, and overflow port (10) also is equipped with on the top that material-output tank (4) one sides are housed of fermentation vat (1); It is characterized in that: a circle gas hood chute (5) is housed on the inwall on described fermentation vat (1) top, and the cover wall of storage cover (2) is sleeved in the gas hood chute (5); On the outer wall on fermentation vat (1) top at least three spring stationary magazine creels (6) are housed, regulator bolts (7) is housed in the spring stationary magazine creel (6), be set with pressure spring (8) on the regulator bolts (7), storage cover (2) is fixed on the regulator bolts (7) by the otic placode on it (11).

2. multifunction straw methane-generating pit according to claim 1 is characterized in that: an installation base (1 3) is arranged in the described storage cover (2), and installation base (1 3) activity of going up is equipped with and is stirred peeler (12).

3. multifunction straw methane-generating pit according to claim 1 is characterized in that: be movably installed with insulation canopy (15) on the described regulator bolts (7).