CN2773065Y

CN2773065Y - Agitating marsh fermentation tank with urceolus cover

Info

Publication number: CN2773065Y
Application number: CNU2005200335069U
Authority: CN
Inventors: 雷天春
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-17
Filing date: 2005-03-17
Publication date: 2006-04-19
Anticipated expiration: 2015-03-17

Abstract

The utility model relates to an agitating methane fermenting pool with an urceolus floating cover, which is mainly composed of a fermenting pool with a feed inlet, a cover cap, an eduction pipe node arranged on the cover cap, etc., wherein the upper part of the fermenting pool is provided with an annular groove for storing water; the cover cap is composed of a cambered top and a vertical side wall which is arranged in the annular groove and performs a water sealing function. The utility model is also provided with a conduit fixedly connected to the center position of the top of the cover cap, the upper end of the conduit extends out of the cover cap, and the lower end of the conduit extends downward into an inner chamber of the cover cap. The utility model is also provided with an agitating rod which is inserted into the cover cap through the conduit and extends downward to an inner chamber of the fermenting pool; a spacing mechanism is arranged on the agitating rod. The utility model has the advantages of stable methane supply pressure, convenient liquid stir, convenient maintenance in the pool and convenient deposit clearance.

Description

The floating cover of urniform stirring-type marsh gas fermentation pool

One, technical field

The utility model relates to the device, particularly rural area household biogas fermentation vat that produces gas through fermentation.

Two, background technology

Widely popularize and use marsh gas fermentation pool now in the rural area.It produces biogas in the back by fermentation with straw, weeds, organic waste etc., uses for the illumination and the cooking.Existing methane-generating pit (be fermentation vat, down with) generally adopts concrete for making, and structurally, cover cap and pool wall generally water and be made as one (cover cap top or open one 50 centimeters skylights), and cover cap is provided with the tube coupling of giving vent to anger, and the pond body is provided with opening for feed and discharge port.Fermentation vat is carried out that the pond body is safeguarded or during the sediment cleaning, the people must climb into Chi Tizhong from discharge port, usually since in the body of pond gas blasting's displacement do not reach the safety standards requirement, and cause the poison generation of serious accident such as dead of operator in the pond.Therefore, this methane-generating pit is not easy to maintenance and cleaning sediment in the pond.Next, the feed liquid stirring of this fermentation vat is generally stretched into the bamboo bar by opening for feed or discharge port (the two is oblique setting) and is carried out effort and inconvenient; Again secondly,, the atmospheric pressure that goes out of this methane-generating pit changes with the attenuation degree of material in the pond, thereby externally the pressure surge of air feed is bigger, and influence sometimes is normal to be used.

Three, utility model content

That task of the present utility model provides that a kind of supply gas pressure is stable, feed liquid stirs is convenient, be convenient to safeguard and the floating stirring-type marsh gas fermentation pool that covers of urniform of sediment cleaning in the pond in.Realize that this novel purpose technical scheme is: the floating cover of a kind of urniform stirring-type marsh gas fermentation pool, main by the fermentation vat with opening for feed, cover cap is arranged on the compositions such as the tube coupling of giving vent to anger on the cover cap, it is characterized in that described fermentation vat top is provided with one as the annular recesses that is filled with water; Described cover cap is formed by arched top with as the vertical side walls that places annular recesses, plays the water seal effect; Also have connect firmly in cover cap top center position, altogether the upper end is stretched out beyond the cover cap, its lower ends downward extends to the conduit of cover cap inner chamber in this; Also have through conduit and insert cover cap and extend downward the agitator arm of fermentation vat inner chamber; Agitator arm is provided with position-limit mechanism.

Be positioned at the annular recesses bottom in the described fermentation vat and be provided with bamboo fence.

Be provided with a plurality of air guide bamboo cages in the described fermentation vat, air guide bamboo cage lower end is positioned at the bamboo fence below, and the upper end extends upwardly to contiguous cover cap arched top.

Described agitator arm lower end is fixedly connected with agitator disk, also is fixedly connected with two " F " shape break bars by the round steel welding on the agitator arm.

Described position-limit mechanism is the movable latch that is arranged on the agitator arm.

Also be provided with liquid backflow tube coupling in natural pond on the described cover cap; Also has header tank as splendid attire natural pond liquid; Header tank is communicated with natural pond liquid backflow tube coupling through conduit; Also be provided with natural pond liquid outlet clearly on the described fermentation vat.

The material of described cover cap is a glass reinforced plastic, is placed with balancing weight on the cover cap.

In the above-mentioned design, fermentation vat pond body and cover cap split are provided with, and cover cap matches with the annular recesses that is filled with water, cover cap becomes the floating cover with water seal effect.Agitator arm inserts and stretches into the fermentation vat inner chamber through conduit.The alr mode of feed liquid has following three kinds in this novel fermentation pond: 1, manpower stirs.Latch is taken off, hold agitator arm upper end, in the vertical direction, back and forth mention, put down down, feed liquid is stirred; 2, stir automatically.Along with variation of gas pressure in the fermentation vat, floating cover (being cover cap) is upper and lower thereupon to be moved, and drives the upper and lower motion of agitator arm (through the latch location) on the floating cover simultaneously, and feed liquid is played stirring action; 3, natural pond liquid refluxes and stirs.Available manpower takes out natural pond liquid from the fermentation vat liquid outlet, send in the header tank, natural pond liquid in the header tank is introduced in the fermentation vat through natural pond liquid re-injection stream tube coupling stirred again.

Compared with prior art, this novel advantage is:

1, this biogas movable floating is covered with meter and is of a size of 1.8 meters of diameters, weight is about 100 kilograms, can from the methane-generating pit cylinder, carry away, be beneficial to the application of raw materials such as straw, weeds, organic waste, the scum silica frost and the sediment of cleaning methane-generating pit are all more convenient, reduce the danger in the scale removal process, be convenient to the maintenance and management of methane-generating pit.

2, the air pressure of methane-generating pit is more stable, and its highest and baric minimum fluctuation range can not exceed 196-490Pa, promptly between 20mm to the 50mm water column.Therefore, burner (kitchen range) stable fire can be made, combustion efficacy can be do not influenced because the minimizing of the biogas amount in the pond, air pressure reduce.

3, the water pressure house of this methane-generating pit can design very for a short time, even can not want water pressure house, because the storage of biogas is to be born by floating cover, when the biogas amount increased, floating cover just rose, and when the biogas amount reduced, floating cover just descended.So this methane-generating pit can keep effective quantity of fermented feed liquid, thereby more stable than hydraulic type biomass pool aerogenesis, the also corresponding raising of factor of created gase relatively stablely.

4, be provided with stirring system in this biogas movable floating cover, can move, stir the feed liquid of fermentation automatically, make factor of created gase higher with floating cover is upper and lower.

5, floating cover adopts macromolecular material and disposable compound the making of glass material, have in light weight, stopping property is high, easy-maintaining, anti-aging, move advantages such as easy for installation, its work-ing life can be above 10 years.

6, this novel common raiser, plantation family that is not only applicable to vast rural area also is applicable to the harmless treatment (avoiding pollution of waterhead, water drain obstruction etc.) of the organic waste waste liquid of urban and rural residents sub-district and factory.

Four, description of drawings

Accompanying drawing is this novel structure iron.

Five, embodiment

In the accompanying drawing, fermentation vat (pool wall 13) generally adopts concrete for making, and eutocia is at below ground.Fermentation vat is provided with opening for feed 14a (diameter 0.3m) and discharge port 14b (diameter 0.3m), the about 12m3 of fermentation vat inner chamber 14 volumes.Fermentation vat top is provided with as the annular recesses 11 that is filled with water.Cover cap 1 arc top and vertical side walls are formed, and the vertical side walls button of cover cap is placed in the annular recesses, as floating cover, playing the water seal effect.The tube coupling 2 of giving vent to anger is arranged on the arched top of cover cap; Conduit 4 connects firmly in cover cap top center position, and stretch out beyond the cover cap its upper end, and lower ends downward extends among the cover cap inner chamber; Agitator arm 5 inserts cover cap and extends downward the fermentation vat inner chamber through conduit 4, and its lower end is fixedly connected with agitator disk 7, also is fixedly connected with two " F " shape break bars 8 by the round steel welding on it.Agitator arm 5 tops are provided with as the position-limit mechanism movable latch 6 of (comprising other usual manner); In the fermentation vat, be positioned at the annular recesses bottom and also be provided with bamboo fence 9, thick slag is played buffer action; Also be provided with a plurality of air guide bamboo cages 10 (weaving into the cage shape) in the fermentation vat with bamboo, its lower end is positioned at bamboo fence 9 belows, the upper end extends upwardly to contiguous cover cap arched top, can effectively fermentation gas in the pond be guided to liquid level (even the crust phenomenon takes place liquid level) top.Also be provided with natural pond liquid backflow tube coupling 3 on the cover cap and also have header tank 12, header tank is communicated with natural pond liquid backflow tube coupling 3 through conduit, can natural pond liquid backflow clearly be arranged profit, and feed liquid in the fermentation vat is stirred.Straw polycopria liquid is after a little while: prevent fermentation material come-up, crust with bamboo fence, the sub-air guide of bamboo cage is adopted natural pond liquid to reflux and is stirred.When the fermentation material is liquid manure, organic waste water:, also can add the feed liquid backflow and stir with the automatic or manual stirring of agitator arm.

Cover cap adopts glass reinforced plastic to make (cover cap can be placed balancing weight on the top), and diameter is 1.8m (generally can be 1.5-2m), and its vertical side walls height is 0.6m (generally can be 0.5-0.8m); Cover cap weight is about 100 kilograms; The diameter of the opening for feed of fermentation vat and the liquid outlet of clear natural pond is 0.3m, and agitator disk 7 is 0.5m to the distance of fermentation vat bottom, and movable latch 6 to the distance of stirring bar 5 tops is 0.6m.

This novel changable is useless to produce biogas and fertilizer with agricultural waste through fermentation for precious, alleviates the contradiction of rural energy shortage, and reduces environmental pollution, advances the technical progress in rural area.

Claims

1, the floating cover of a kind of urniform stirring-type marsh gas fermentation pool, main cover cap is arranged on the compositions such as the tube coupling of giving vent to anger on the cover cap by the fermentation vat with opening for feed, it is characterized in that, and described fermentation vat top is provided with one as the annular recesses (11) that is filled with water; Described cover cap (11) is formed by arched top with as the vertical side walls that places annular recesses (11), plays the water seal effect; Also have connect firmly in cover cap top center position, altogether the upper end is stretched out beyond the cover cap, its lower ends downward extends to the conduit (4) in the cover cap inner chamber; Also have through conduit (4) and insert cover cap and extend downward the agitator arm (5) of fermentation vat inner chamber; Agitator arm is provided with position-limit mechanism.

2, fermentation vat according to claim 1 is characterized in that, is positioned at annular recesses (11) bottom in the described fermentation vat and is provided with bamboo fence (9).

3, fermentation vat according to claim 2 is characterized in that, is provided with a plurality of air guide bamboo cages (10) in the described fermentation vat, and air guide bamboo cage lower end is positioned at bamboo fence (9) below, and the upper end extends upwardly to contiguous cover cap arched top.

4, fermentation vat according to claim 1 is characterized in that, described agitator arm (5) lower end is fixedly connected with agitator disk (7), also is fixedly connected with two " F " shape break bars (8) by the round steel welding on the agitator arm.

5, fermentation vat according to claim 1 is characterized in that, described position-limit mechanism is for being arranged on the movable latch (6) on the agitator arm (5).

6, according to the described fermentation vat of the arbitrary claim of claim 1-5, it is characterized in that, also be provided with natural pond liquid backflow tube coupling (3) on the described cover cap (1); Also has header tank (12) as splendid attire natural pond liquid; Header tank (12) is communicated with natural pond liquid backflow tube coupling (3) through conduit; Also be provided with natural pond liquid outlet (14b) clearly on the described fermentation vat.

7, fermentation vat according to claim 6 is characterized in that, the diameter of described cover cap is 1.8m, and the height of its vertical side walls is 0.6m; The width of annular recesses (11) is 0.2m.

8, fermentation vat according to claim 7 is characterized in that, the material of described cover cap is a glass reinforced plastic, is placed with balancing weight on the cover cap.

9, fermentation vat according to claim 8 is characterized in that, the diameter of the opening for feed of described fermentation vat and the liquid outlet of clear natural pond is 0.3m, and movable latch (6) to the distance at agitator arm (5) top is 0.6m.