CN206858354U

CN206858354U - Large-scale voltage stabilizing biogas sewage-treatment plant

Info

Publication number: CN206858354U
Application number: CN201720084953.XU
Authority: CN
Inventors: 孙俊华
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-01-18
Filing date: 2017-01-18
Publication date: 2018-01-09
Anticipated expiration: 2027-01-18

Abstract

A kind of large-scale voltage stabilizing biogas sewage-treatment plant includes sewage inlet, pretreatment pool, sewage communicating pipe, pond body, main fermentation pond, feed liquid connected entrance, dividing plate, secondary fermentation vat, constant pressure communicating pipe, pressure demarcation strip, constant pressure pond, passage, partition wall, discharge liquor passage, collection gas well, appendix, clarifier-tank, overfall.Large-scale voltage stabilizing biogas sewage-treatment plant of the present utility model utilizes the specific function of multiple-microorganism, and sewage is decomposed and is acidified, is then absorbed by anaerobic bacteria and produces substantial amounts of biogas.Pressure demarcation strip is not only that sewage is separated into the fermentation sections of two different microorganisms floras, and by biogas in pond with liquid separation into two pressure ranges, the liter or drop of pressure, extract and supply are naturally done without auxiliary power.The pressure of supply can convey biogas 3000 meters of progress active combustions.By level Four fermentation decomposition and directed flow and change flow velocity, sewage obtains sufficient resolution process.

Description

Large-scale voltage stabilizing biogas sewage-treatment plant

First, technical field of the present utility model

Biogas sewage-treatment plant is the utility model is related to, belongs to technical field of sewage, it is especially a kind of large-scale steady Press biogas sewage-treatment plant.

2nd, background technology of the present utility model

Conventional huge discharge sewage disposal technology needs larger storage volume, it is necessary to which auxiliary power, complicated flow, go back Chemical material is launched, operating cost is high, single effect.In plant using conventional biogas engineering or conventional sewage processing work Journey, not only input cost at initial stage is high, and the operating cost in later stage is also high, is also difficult to reach preferable effect.

The purpose of this utility model is just to provide a kind of stable, steady without operating cost, production rate of methane height, air pressure Calmly, can long-distance sand transport biogas, the large-scale voltage stabilizing biogas sewage-treatment plant of sewage recycling.

3rd, the purpose of this utility model content：

Large-scale voltage stabilizing biogas sewage-treatment plant includes sewage inlet, pretreatment pool, sewage communicating pipe, pond body, main fermentation Pond, feed liquid connected entrance, dividing plate, secondary fermentation vat, constant pressure communicating pipe, pressure demarcation strip, constant pressure pond, passage, partition wall, discharge liquor are led to Road, collection gas well, appendix, clarifier-tank, overfall.

Large-scale voltage stabilizing biogas sewage-treatment plant of the present utility model is the upper and lower anaerobic and aerobic fermentation for separating and connecting Overall structure container, level Four fermentation one-level separation.Sewage contacts multiple-microorganism in pretreatment pool, decomposes, be automatic after acidifying Main fermentation pond is flowed into, in the presence of a large amount of anaerobic bacterias, COD and BOD in sewage are decomposed, while also produce substantial amounts of natural pond Gas.Sewage after concentration reduces is acted on by biogas pressure, is flowed into time fermentation vat and is continued to ferment, and produces biogas, in sewage Organic matter is got back further degraded.In the presence of biogas pressure, liquid extrudes from constant pressure communicating pipe rises to the storage of constant pressure pond Deposit and contact aerobic bacteria and carry out aerobic fermentation, enter back into clarifier-tank and purified, then discharged from overfall.

Caused biogas gradually increases in main fermentation pond and time fermentation vat, and pressure is increasing, and the water level in constant pressure pond is also got over Come it is higher, by biogas from collection gas well in extrude, biogas, which can be sent in the user of 3000 meters of distances, without additional power makes With.With the consumption of biogas, pressure gradually reduces, and the liquid in constant pressure pond, which is gradually back in time fermentation vat, continues fermentation decomposition, Then, liquid is flowed up and down again and again in pond, and the organic matter in sewage is fully fermented and degraded, after purification Liquid is discharged from overfall.Whole technical process is automatically performed without auxiliary power.

4th, illustrate.Accompanying drawing is the utility model structure diagram, and upper figure is plan, and figure below is profile.

Large-scale voltage stabilizing biogas sewage-treatment plant includes sewage inlet 1, pretreatment pool 2, sewage communicating pipe 3, pond body 4, master Fermentation vat 5, feed liquid connected entrance 6, dividing plate 7, secondary fermentation vat 8, constant pressure communicating pipe 9, pressure demarcation strip 10, constant pressure pond 11, passage 12nd, partition wall 13, discharge liquor passage 14, collection gas well 15, appendix 16, clarifier-tank 17, overfall 18.

5th, specific embodiment

Pressure demarcation strip 10 is set in pond body 4, zymotechnique is divided into two parts, top is fermented for open aerobic microbiological Decompose, bottom is decomposed for closing anaerobic microbial fermentation.Sewage is input in pretreatment pool 2 from sewage inlet 1, is located in advance Reason, is contacted, solid content is broken down into the acidic liquid for being dissolved in water, under by Action of Gravity Field, from sewage communicating pipe 3 with multiple-microorganism Into main fermentation pond 5, under the decomposition of a large amount of anaerobes, content of organics substantially reduces in sewage, most of carbon atom Combined with the hydrogen atom in water, form CH₄Methane molecule (i.e. biogas), the organic matter that small part is not decomposed also, by forefront pressure Under effect, through feed liquid connected entrance 6, into secondary fermentation vat 8, dividing plate 7 is set in main fermentation pond 5 and time fermentation vat 8, is advantageous to dirt The isolation and processing of water concentration, making the suspension species of front end, precipitate can not surface current backward.The upper end of dividing plate 7 sets passage 12, Collection gas well 15 is flowed into biogas caused by sharp fermentation vat 8, the lower end of dividing plate 7 sets feed liquid connected entrance 6, and clear liquid can be by, And suspension and sediment are blocked in front end and continue to ferment.Feed liquid is fermented in secondary fermentation vat 8, also produces biogas.Feed liquid is by pond Through constant pressure communicating pipe 9 in the presence of interior biogas increases, pressure increases, risen to by force feed in constant pressure pond 11, constant pressure pond 11 is to expose Oxygen pond, the organic substance that anaerobic bacteria can not decompose in secondary fermentation vat 8, and the substantial amounts of aerobic microbiological effect in constant pressure pond 11 Under, further degraded, clear liquid flows through discharge liquor passage 14, and S-type tendency adds stroke, and discharge liquor passage 14 designs The structure that width does not wait, makes flow rate of liquid change, and be so more beneficial for liquid contacts with aerobic microbiological, and in clarifier-tank Buffered fermentation decomposition is carried out in 17, after then liquid obtains fully processing, is discharged from overfall 18.

Pond body is divided into two different sections of two-way pressure by pressure demarcation strip 10, in the work of the liquid water-head of upper part Under, pressure is transmitted in the fermentation vat of lower end through constant pressure communicating pipe 9, pressure extrudes biogas from collection gas well 15 in pond, through defeated Tracheae 16 can remote conveying be sent to user terminal use, and user is concentrated when using biogas, and biogas reserves gradually decrease in pond, pressure The liquid of the upper end of demarcation strip 10, through constant pressure pond 11 again from being back to constant pressure communicating pipe 9 in time fermentation vat 8.By aerobic microbiological point Liquid after solving and being acidified is easy to be assimilated by anaerobic bacteria again in secondary fermentation vat 8, and produces substantial amounts of biogas, main, During secondary fermentation vat aerogenesis, pressure increases in pond, and its pressure shows as Pneumatic water, water extraction is risen into top, when user uses biogas When, the water backflow on top, its pressure shows as hydraulic pressure gas, therefore pressure is relatively steady, and can be by natural pond without auxiliary power Gas remote conveying is sent to user's (can convey 2000~3000 meters), it can be ensured that the effective atmosphere of terminal temperature difference combustion gas.Meanwhile feed liquid In the flowing up and down of pressure demarcation strip 10, the microorganism species of contact are different, are very beneficial for the handling process of sewage, sewage energy Sufficiently fermented, resolution process.

Claims

1. a kind of large-scale voltage stabilizing biogas sewage-treatment plant, including sewage inlet (1), pretreatment pool (2), sewage communicating pipe (3), Pond body (4), main fermentation pond (5), feed liquid connected entrance (6), dividing plate (7), secondary fermentation vat (8), constant pressure communicating pipe (9), pressure separate Plate (10), constant pressure pond (11), passage (12), partition wall (13), discharge liquor passage (14), collection gas well (15), appendix (16), net Change pond (17), overfall (18), it is characterised in that：Pond body (4) is separated into two parts up and down, upper part by pressure demarcation strip (10) For open aerobic fermentation, bottom is divided into closing anaerobic fermentation, sewage inlet (1) connection pretreatment pool (2), and pretreatment pool (2) is set Put and communicated with main fermentation pond (5) sewage communicating pipe (3), dividing plate (7), dividing plate are set between main fermentation pond (5) and time fermentation vat (8) (7) upper end sets passage (12), and the lower end of dividing plate (7) sets feed liquid connected entrance (6), and secondary fermentation vat (8) sets constant pressure to connect Siphunculus (9) is connected with constant pressure pond (11), and partition wall (13) is set between constant pressure pond (11) and clarifier-tank (17), clarifier-tank (17) End sets overfall (18), and the top of main fermentation pond (5) sets collection gas well (15), and the top of collection gas well (15) sets appendix (16)。