CN1045993C

CN1045993C - Double-current anaerobic device

Info

Publication number: CN1045993C
Application number: CN93119392A
Authority: CN
Inventors: 张万俊
Original assignee: RURAL BUREAU KUNMING
Current assignee: RURAL BUREAU KUNMING
Priority date: 1993-10-10
Filing date: 1993-10-10
Publication date: 1999-10-27
Anticipated expiration: 2013-10-10
Also published as: CN1103664A

Abstract

The present invention relates to a three-dimensional meander cloth methane tank belonging to a device which can make organic matters generate marsh gases through anaerobic treatment. Raw materials after filtration respectively flow into an annular fermentation area and a central fermentation area of a main fermentation tank from the middle layer and the bottom layer of a feeding inlet. After the raw materials have anaerobic digestion in the main fermentation tank, the raw materials flow into a water pressure chamber for two-stage fermentation under the action of a gas storage cabinet. The generated marsh gases are led out from the upper part of the main fermentation tank and the upper surface of the gas storage cabinet. The methane tank uses three-dimensional cloth and the two-stage fermentation, and is matched with a central slag pumping and shell breaking device so as to realize the continuous fermentation process of self-flowing feeding and discharge, and does not need refueling for a long term. The tank has the advantages of novel structure, strong practicability, low cost and high gas production rate.

Description

Double-current anaerobic device

The present invention relates to a kind of double-current anaerobic device, belong to the equipment that organic substance forms methane through anaerobic treatment.

Present domestic methane-generating pit mostly is a fermentation vat, and to reload all time-consuming at every turn.The bottom meander cloth methane-generating pit of single structure, the wastage of material problem does not obtain fine solution.The zymotechnique of external methane-generating pit, cost is very high-leveled and difficult in popularization.

Purpose of the present invention is exactly for solving the problem that above-mentioned methane-generating pit exists, a kind of multiple functional, multistage fermentation, factor of created gase height are provided, and the gravity flow charging and discharging do not need the double-current anaerobic device that continuously ferments that reloads greatly for a long time.

The object of the present invention is achieved like this: double-current anaerobic device comprises charging equalizing tank, center discharge port, fermentation vat, fermentation vat arch lid, water pressure house, this device is second order fermentation, three-dimensional cloth, organic substance (human excrement, feces of livestock and poultry and crop material, weeds) is dropped into pretreatment pool, flow into the charging equalizing tank after filtration, plane middle level two-way annularly flow and vertical bottom two paths of feed liquid through communicating with fermentation vat sidewall and bottom, the annular fermentation zone and the center fermentation zone of inflow fermentation vat.Fermentation vat is separated into the annular and the center fermentation zone of closed bottom by the bevelled right cylinder dividing plate in a upper end.Raw material is after fermentation vat (being one grade fermemtation) carries out anaerobic digestion, and pipe flows into water pressure house through the second order fermentation upper reaches, forms second order fermentation under the gas-holder effect that covers on the water pressure house, and the biogas of generation is drawn from fermentation vat and gas-holder top.Residue behind the second order fermentation (liquid) flows into the manure storage pond and makes fish material, fertilizer or the usefulness that feeds pigs.Sink to the residue at fermentation zone cone base center, center, can enter multifunctional assembled removable cover pipe core, extract out from the center discharge port by the slotted eye on the center stirring dreg-drawing pipe that is connected with cone base.Hulling machine is stirred on the upper strata that cover hangs on the multifunctional assembled removable cover pipe core outer tube wall, is in the state of moving up and down in the liquid fermenting process of pond, guarantees that liquid level does not crust, for aerogenesis output provides condition.

This double-current anaerobic device, adopt the two-way annularly flow in middle level, plane and three-dimensional cloth of mobile two paths of vertical bottom and second order fermentation technology, raw material is fully fermented to form methane, join with the center and take out slag and hulling machine, realize the gravity flow charging and discharging, do not needed the continuous fermentation process that reloads greatly for a long time.This pool-type structure novelty, practical, cost is low, the factor of created gase height.

Below in conjunction with accompanying drawing one embodiment of the present of invention are described in further detail

Fig. 1 is the vertical view of double-current anaerobic device

Fig. 2 is the A-A sectional view of Fig. 1

Fig. 3 is the B-B sectional view of Fig. 2

Double-current anaerobic device, comprise charging equalizing tank 1, center discharge port 21, fermentation vat 12, the fermentation vat arch covers 10, water pressure house 17, feces of livestock and poultry pretreatment pool 4, human excrement pretreatment pool 5 is a filtrate plate 23 with the partition wall of charging equalizing tank 1, the bottom of charging equalizing tank 1 and inboard near the place, bottom respectively with bottom feed-pipe 3, middle level opening for feed 2 communicates, a middle level opening for feed 2 and a left side, the right side glassware 6 that is periphery, 7 communicate, a left side, the right side glassware 6 that is periphery, 7 communicate with annular fermentation zone 8 again, bottom feed-pipe 3 communicates with center fermentation zone cone 11, central section dividing plate 13 is the gradient right cylinder in a top, the top of bottom and cone 11 is bonding, and right cylinder fermentation vat 12 is separated into annular fermentation zone 8 and the center fermentation zone 9 that top communicates.It is bonding with center fermentation zone bottom that dreg-drawing pipe 15 is stirred at the center, multifunctional assembled removable cover 14 covers 10 center skylight openings from the fermentation vat arch to be put into, the lid end seals with the clay joint filling with skylight opening, put into the removable cover center pipe end in pond and center at the bottom of the pond and stir dreg-drawing pipe 15 tops and be socket and dock, with low grade mortar or tonerde connection.Center discharge port 21 is positioned at multifunctional assembled removable cover 14 tops, is convenient to the discharge port extraction from then on of feed liquid and sediment.The upper strata is stirred hulling machine 19 covers and is hung on the pipe core outer tube wall of multifunctional assembled removable cover 14, guarantees that hulling machine under gas pressure, moves up and down on liquid level top, destroys the liquid level crust.Gas-holder 18 can be with pressure liftable (exhaust and air storage) in water pressure house 17.Annular fermentation zone 8 and second order fermentation upper reaches pipe 16 communicates, and the upper reaches is managed 16 and communicated with water pressure house 17, and gas-holder 18 covers on the water pressure house 17, and water pressure house communicates with manure storage pond 20, and biogas pipe 22 is drawn from fermentation vat and gas-holder 18 tops.Pretreatment pool 4,5, equalizing tank 1, water pressure house 17, manure storage pond 20 are concrete prefabricated member, and be bonding with sand-cement slurry.Each parts of fermentation vat are concrete prefabricated member, and each connecting portion is bonding with sand-cement slurry.The Cast-in-place concrete mode also can be adopted in the place that the steel-made internal mould condition is arranged.

Human excrement enters pretreatment pool 5, feces of livestock and poultry or crop material, weeds etc. go into pretreatment pool 4, and (methane-generating pit that newly builds up is feeded for the first time, under the technician instructs, can directly stir dreg-drawing pipe 15 and add bacterial classification and high quality raw material by charging equalizing tank 1 and center), through pretreated feed liquid, filter through filtrate plate 23, elimination is thick, macrofiber and sand, stone, soil block etc. enter charging equalizing tank 1, this moment, feed concentration required about 5%, and pH value is 6.5～7.5, and does not contain Bactericidal medicine.The feed liquid that enters equalizing tank is respectively by middle level opening for feed 2, the left and right glassware 6,7 that is periphery enters annular fermentation zone 8, another road enters center fermentation zone cone base 11 by bottom feed-pipe 3, the right cylinder central section dividing plate 13 that top is gradient is separated into annular fermentation zone 8 and the center fermentation zone 9 that top communicates with right cylinder fermentation vat 12.Raw material flows into water pressure house 17 through second order fermentation upper reaches pipe 16 after fermentation vat carries out anaerobic digestion, gas-holder 18 covers on the water pressure house, forms second order fermentation under its effect, and the biogas of generation is drawn from fermentation vat top and gas-holder 18 tops.

Claims

1. double-current anaerobic device, comprise charging equalizing tank (1), center discharge port (21), fermentation vat (12), fermentation vat arch lid (10), water pressure house (17), it is characterized in that: feces of livestock and poultry pretreatment pool (4), human excrement pretreatment pool (5) is filtrate plate (23) with the partition wall of charging equalizing tank (1), the bottom of charging equalizing tank (1) and inboard near the place, bottom respectively with bottom feed-pipe (3), middle level opening for feed (2) communicates, a middle level opening for feed (2) and a left side, the right side glassware (6) (7) that is periphery communicates, a left side, the right side glassware (6) (7) that is periphery communicates with annular fermentation zone (8) again, bottom feed-pipe (3) communicates with center fermentation zone cone base (11), central section dividing plate (13) is the gradient right cylinder in a top, the top of bottom and cone (11) is bonding, right cylinder fermentation vat (12) is separated into annular fermentation zone (8) and the center fermentation zone (9) that top communicates, it is bonding with center fermentation zone bottom that dreg-drawing pipe (15) is stirred at the center, multifunctional assembled removable cover (14) is put into the pond from fermentation vat arch lid (10) center skylight opening, the lid end seals with the clay joint filling with skylight opening, being socket above putting into the center pipe end in pond and dreg-drawing pipe (15) being stirred at center at the bottom of the pond docks, connect with low grade mortar or tonerde, center discharge port (21) is positioned at multifunctional assembled removable cover (14) top, the upper strata is stirred hulling machine (19) cover and is hung on the pipe core outer tube wall of multifunctional assembled removable cover (14), annular fermentation zone (8) communicates with second order fermentation upper reaches pipe (16), upper reaches pipe (16) communicates with water pressure house (17), gas-holder (18) covers on the water pressure house, water pressure house (17) communicates with manure storage pond (20), and biogas pipe (22) is drawn from fermentation vat and gas-holder (18) top.