CN2905801Y

CN2905801Y - Methane generating device

Info

Publication number: CN2905801Y
Application number: CNU2006200319465U
Authority: CN
Inventors: 刘昆
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-11
Filing date: 2006-05-11
Publication date: 2007-05-30
Anticipated expiration: 2016-05-11

Abstract

Disclosed is a biogas generating equipment, which comprises a biogas floating cover, a pool body, and a fluid circulating system connected with a stirring system and a sediment circulating and discharging system. Wherein, a sediment space is provided at the bottom of the sphere, a separating net is provided at the top of the sediment space, a sediment discharging exit is provided at the lower part of the sediment space, the sediment discharging exit is connected with the sediment circulating and discharging system, the mouth of the sucking pipe and the discharging pipe in the fluid circulating system and the stirring system are covered with roof covers, a switch on and off ball is provided in the roof cover on the discharging pipe. One, two or more sediment spaces are arranged in the biogas generating equipment. The major sediment discharging pipe in the sediment circulating and discharging system is a pipe with big inner diameter and arc shape lower part, and a thin soft rubber tube is provided in the pipe, the tube can be used to dilute the sediment space and the sediments in the major sediment pipe. The utility model has no jam phenomenon with good functions. The utility model can comprehensively use the straws in the rural areas to produce large amount of biogas and fertilizers with wide application in the countryside for the industrialized use of straws.

Description

A kind of biogas generating device

Technical field

The utility model belongs to the biomass energy utilization technologies field, particularly a kind of large-scale generating unit of biogas that utilizes the straw producing methane.

Background technology

With the biogas that biogenic waste material is produced, be a kind of fuel that often use in the rural area.The Chinese government encourages the rural area to build methane-generating pit and is converted into biogas so that comprise the biomass of straw and waste material.Existing biogas generating device comprises the cover-floating type methane-generating pit, and the pond body and the feed liquid recycle system, residue circulation discharge system are not separated between pond intracoelomic cavity and the slag-drip opening, to the unable to get up filteration of slagging tap, stop up slag notch easily.Its feed liquid recycle system fluid mouth of pipe stops up easily, causes circulation not smooth.

The utility model content

The biogas generating device that provides a kind of result of use good is provided the utility model purpose.

For reaching above-mentioned purpose, the utility model adopts following technical scheme: a kind of biogas generating device comprises natural pond air-float hood, pond body, feed liquid circulation and stirring system, residue circulation and discharge system; Be provided with the sediment cavity at the bottom of the pond, sediment cavity napex is provided with separate mesh, the bottom is provided with slag notch, and slag notch links to each other with the discharge system with the residue circulation.

The imbibition mouth of pipe and the fluid mouth of pipe are equipped with mask in feed liquid circulation and the stirring system, are provided with the keying ball float in the fluid mouth of pipe mask.

In residue circulation and the discharge system, the main pipeline of slagging tap is that internal diameter is the pipeline of circular arc than thick and bottom, and top suitably exceeds the pond body, the thin rubber hose that can pass in and out is arranged in it, have circular bowl rubber coating to connect on top, tightening rubber coating can seal, and unclamps to spur rubber hose.

The sediment cavity is 1,2 or a plurality of, decides according to the separate mesh area size at sediment cavity top.

In the utility model, the bottom of methane-generating pit is one, two or more sediment cavity, and straw and the isolating separate mesh of residue are arranged at cavity top, and separate mesh is made by impregnating material, its function is can leak down after only allowing the straw fermentation and becoming residue, stops up slag notch not make straw.In the circulation and stirring system of feed liquid, liquid sucting port has bigger filter mantle and immerses the underwater, avoids the straw block system, squeezes into bottom in the pond after the pump supercharging, plays stirring action; Liquid outlet is fixed on the separate mesh at the bottom of the pond, and its outlet has a spherical float valve, has one to cover net outward, and ball float can not be gone out, and does not allow straw enter and covers in the net, and ball float falls to stopping up the mouth of pipe automatically when quitting work, and does not cause residue to stop up outlet.In residue circulation and the discharge system, the main pipeline of slagging tap is that the thick bottom of internal diameter is the pipeline of circular arc, and the rubber hose that can pass in and out is arranged in it.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the left pseudosection of Fig. 1.

Embodiment

A kind of biogas generating device, the bottom of pond body 1 have two

sediment chambeies

2,3; Straw and the isolating separate mesh 4 of residue are arranged at 2,3 tops, sediment chamber, are fixed on the pond body 1; 2 bottoms, sediment chamber link to each other with the main pipeline 5 of slagging tap; The main pipeline 5 of slagging tap is that the thick bottom of internal diameter is the pipeline of circular arc, in the thin rubber hose 6 that can pass in and out is arranged; Rubber hose 6 is tightened sealing with the suitable for reading of the pipeline 5 of slagging tap with circular bowl rubber sealing boot 7, unclamps rubber sealing boot 7, and rubber hose 6 can spur up and down; In the middle of the main pipeline 5 of slagging tap bifurcations is arranged, divide two-way to connect pump 8 and valve 9; Pump 8 connects slag tap valve 10 and circulation valve 11; Valve 9,11 is joined and is entered pond intracoelomic cavity 13 with pipeline 12, has interface to introduce other residue circulation interface by pipeline and valve 14 between the

valve

9,11; Main pipeline 15 and the rubber hose 16 of slagging tap also is to be connected with valve 17 with valve 14 respectively by pipeline, pump and valve; Imbibition pipeline 18 is arranged in the pond intracoelomic cavity 13, and there is bigger filtering screen 19 its end, derives to link to each other with

valve

17,20,21,22,23 respectively; Valve 20 is derived and is entered pump 24, and then is connected with rubber hose 6 to rubber hose interface 25 with pipeline; Valve 21 is derived and is connected with recycle pump 26, and then enters above the separate mesh 4 of pond intracoelomic cavity 13 by valve 27 and pipeline 28 again, and outlet upwards is fixed on the supporting and mounting bracket 29, and its outlet has net of covering 30 and ball float 31; Supporting and mounting bracket 29 is fixed on the separate mesh 4; Having between pump 26 and the valve 27 derives pipeline and valve 32, draws with pipeline 33 to be connected; By heat exchanger fixation clamp 34 heat exchanger 35 is installed on pond intracoelomic cavity 13 inwalls, the hot water of importing or steam-pipe 36 is arranged on it, derive pipeline 37; The platform 39 that supports natural pond air-float hood 38 is arranged at pond intracoelomic cavity 13 tops, and air-float hood 38 tops in natural pond have biogas to derive pipeline 40, by connecting

Connecing valve 41 derives; 42 is the interface of sediment inner chamber and residue discharge conduit; Reinforced passage 43 is installed on another sidewall of pond body, the mechanical means that adds straw etc. can be installed on the inlet 44 of reinforced passage 43 or covers sealing usually.

When system starts for the first time, earlier natural pond air-float hood 38 is removed, straw and the isolating separate mesh of residue at pond body 1 add straw and an amount of animal excrement or other biological waste material more than 4, to the platform 39 of natural pond air-float hood, and with the straw compacting, add some other fermentation assistants again, add water to then near tankful, add natural pond air-float hood 38, close all valves except that

valve

23,41, add air in the entry emptying natural pond air-float hood 39, valve-off 23,41 from valve 23; Start heat exchanger 35, tank liquor is heated to (if not heating, the degradation speed of straw is very slow) more than 30 degrees centigrade, open valve 21,27, be interrupted ejector priming 26, make the tank liquor circulation to increase the decomposition rate of straw; Valve 27,32 alternation switches stir whole groove pond; Treat that straw decomposes to a certain degree, begin to produce biogas, increase the cycle index of pump 26, be beneficial to biogas and separate.Straw decomposes to a certain degree, and the

sediment chamber

2,3 of bottom, groove pond begins that sediment is arranged, and only opens valve 11, closes other valves, is interrupted ejector priming 8, increases the circulation of groove slag liquid, can accelerate the degraded of straw, increases the generation speed of biogas.When straw degraded fully, or biogas produces speed when extremely low, and the relatively complete biogas that is converted into of straw be described, can open valve 10, closes other valves, ejector priming 8 is with a part of guiding system of groove slag liquid, as organic fertilizer; Remaining raffinate is done the degradation solution use that continues to add straw.Too many or too thick when the sediment in sediment chamber 2, can open

valve

9,11,20, close other valves, unclamp circular bowl rubber sealing boot 7, ejector priming 24, constantly spur rubber hose 6, can dilute the slag content of sediment chamber 2 and the main pipeline 5 of slagging tap, can or discharge by 5 pairs of groove slags circulations of major cycle pipeline.With quadrat method residue circulation or discharge are carried out in sediment chamber 3.When biogas produces, when natural pond air-float hood 39 floats to certain altitude, open valve 40, derive biogas, natural pond air-float hood 39 falls again; Continue to feed in raw material and generally enter by reinforced passage 43.

Claims

1, a kind of biogas generating device, comprise that natural pond air-float hood, pond body, feed liquid circulation stirring system, residue circulation discharge system connect, it is characterized in that, body bottom, pond is provided with the sediment cavity, sediment cavity top is provided with separate mesh, the bottom is provided with slag notch, and slag notch links to each other with the discharge system with the residue circulation.

2, biogas generating device as claimed in claim 1 is characterized in that, in feed liquid circulation and the stirring system, the imbibition mouth of pipe and the fluid mouth of pipe are equipped with mask, are provided with the keying ball float in the fluid mouth of pipe mask.

3, biogas generating device as claimed in claim 1 or 2 is characterized in that, the sediment cavity is 1,2 or a plurality of, decides according to pond body bottom straw and the isolating separate mesh area size of residue.

As claim 1 or 2 or 3 described biogas generating devices, it is characterized in that 4, in residue circulation and the discharge system, the main pipeline of slagging tap is that the thick bottom of internal diameter is the pipeline of circular arc, the rubber that can pass in and out is arranged than small hose in it.