CN202610226U

CN202610226U - High-concentration level-pressure type automatic-deslagging biogas generation tank

Info

Publication number: CN202610226U
Application number: CN2012202000214U
Authority: CN
Inventors: 郑毅; 周建华; 张树静
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-04
Filing date: 2012-05-04
Publication date: 2012-12-19
Anticipated expiration: 2022-05-04

Abstract

The utility model discloses a high-concentration level-pressure type automatic-deslagging biogas generation tank, which is composed of a level-pressure tank, a horizontal biogas fermentation tank and a gas cabinet tank, wherein a desilting sand groove and a stirrer are arranged at the level-pressure tank; the slope ratio of the bottom of the fermentation tank is 1:4-6, and a heating device is arranged at the bottom of the tank; a separation wall is arranged at the front-segment top of the fermentation tank, and a baffle wall is arranged at the rear part of the fermentation tank; the rear part of the fermentation tank is connected into the gas cabinet tank through the outlet of the baffle wall, and a glass fiber reinforced plastics gas cabinet is arranged on the tank; the gas cabinet tank is connected with a slag storage tank through a baffling port and a baffling channel; and a biogas pipeline on a fermentation tank cover enters the gas cabinet. The material concentration of the biogas generation tank can achieve over 15 percent and is 2.5 times higher than the concentration of wet fermentation, over 2 m3 of biogas can be generated per cubic volume everyday, and the biogas generation rate is over 5 times higher than that of the wet fermentation. The biogas tank is horizontally established underground, which is beneficial to heat preservation, the energy consumption is low, and the normal operation at the northern area in winter can be ensured. The biogas generation tank performs automatic feeding and automatic deslagging, and the operation cost is low. Biogas slag and biogas slurry can be used as fertilizers.

Description

The high density position-pressure is from the deslagging mathane generating pool

Technical field

The utility model relates to the bioenergy field, is that a kind of high density position-pressure is from the deslagging methane-generating pit specifically.

Background technology

Mostly present methane-generating pit both domestic and external is vertical pond body, adopts lower concentration (wet fermentation) technology, and production efficiency is low, and result of use is poor, and the shortcoming of existence is following:

What 1, the traditional methane tank technology adopted is the lower concentration zymotechnique, and only about 6%, produce biogas at 0.5 m every cube of every day to material concentration ³Below; Have defective on the structure, be short-circuited easily, digestion not exclusively.

2, wet fermentation power consumption is high, the insulation inconvenience of vertical pond, and north of china in winter is difficult to ordinary production; The charging and the flow process property of slagging tap are poor, and accidents such as top junction lid and bottom portion sediment also take place easily.

3, the wet natural pond slag solids content that ferments is low, and only below 5%, it is too low to do concentration of fertilizer, is difficult to long-distance transportation and uses; Do that waste water effluxes and concentration is too high, form secondary pollution, the biogas residue liquid resource that is in the state of facing a difficult choice is difficult to reasonable utilization, also just is difficult to reach the industrialization purpose.

Summary of the invention

The purpose of the utility model is to provide a kind of high density position-pressure from the deslagging mathane generating pool, and its high density is from deslagging, and production efficiency is high, the sub product reusable edible.

The technical scheme of the utility model is following:

This device presses pond, horizontal marsh gas fermentation pool and gas holder pond three parts to constitute by the position, and it is the material upstream end that last rheme is pressed the pond, and this pond is provided with riffler and the whisking appliance that stirs material; The outlet in this pond connects airtight horizontal marsh gas fermentation pool, this fermentation vat bottom design sloping type, and its ratio of slope is 1:4～6; The marsh gas fermentation pool inner bottom part is provided with heating unit; Leading portion top at fermentation vat is provided with divider wall, is provided with deflected current wall at the fermentation vat rear portion, and the gas holder pond is inserted through the deflected current wall outlet in the rear portion of fermentation vat; This pond is provided with the glass reinforced plastic gas holder, and this gas holder pond connects through baffling mouth, baffling passage stores up slag bath; Above-mentioned fermentation vat cover the connection methane pipeline, this pipeline feeds above-mentioned gas holder.

Last rheme is pressed the concrete basin of pond for the band hypsokinesis gradient, and whisking appliance is housed in the pond, and the position presses pool volume to be designed to above-mentioned marsh gas fermentation pool volumetrical 1/20.

Above-mentioned marsh gas fermentation pool is made up of with the back anaerobic fermentation zone preceding aerobic fermentation district, before divider wall, is the aerobic fermentation district, is anaerobic fermentation zone behind the divider wall, and this marsh gas fermentation pool is that concrete construction forms.

Also for going out slag bath, the gas holder pond is a concrete constructions in above-mentioned gas holder pond, and the middle and upper part is provided with the glass reinforced plastic gas holder, and this gas holder top is outside the pond.

The advantage of the utility model is:

1, this biogas new technology has solved " high density production " problem, and material concentration can reach more than 15%, and specific humidity fermentation concentration is high 2.5 times; But every cubic capacity day aerogenesis 2m ³More than, specific humidity fermentation gas rate improves more than 5 times.

2, methane-generating pit helps insulation with horizontal infrastructure, and it is low to consume energy, and can guarantee that north of china in winter normally moves; Utilize the position to press automatic feed and automatic sludge discharge, running cost is low.

3, high gravity fermentation natural pond slag solids content high (reaching more than 12%) utilizes the vegetable material filtration unit to leach the natural pond slag, and the natural pond slag is as the fertilizer composite fertilizer material, and natural pond liquid concentration is high, can directly use as high density natural pond liquid fertilizer.

Description of drawings

Fig. 1 is the cross-sectional view of the utility model methane-generating pit;

Fig. 2 is the vertical view of the utility model methane-generating pit;

1, the pond whisking appliance is pressed in the position; 2, the pond is pressed in the position, and 3, marsh gas fermentation pool; 4, divider wall, 5, material liquid level line, 6, methane outlet, 7, methane pipeline, 8, well heater; 9, deflected current wall, 10, the liquid level visor, 11, the overflow slag notch, 12, the gas holder pond; 13, gas holder slideway, 14, slideway protects wheel, 15, gas holder, 16, spacing automatic vent pipe; 17, biogas vent pipe, 18, the baffling passage, 19, the storage slag bath, 20, the baffling mouth.

Embodiment

Below in conjunction with accompanying drawing utility model is described further.

See by Fig. 1 and Fig. 2; This device presses pond 2, horizontal marsh gas fermentation pool 3 and gas holder pond 12 three parts to constitute by the position; It is the concrete basin of the band hypsokinesis gradient that the pond is pressed in the position; Riffler and whisking appliance 1 are set, and material advances through pressing the horizontal fermentation vat 3 of inflow automatically by the position behind preparatory stirring, concentration adjustment and the preliminary sedimentation sand in institute; After material got into fermentation vat, integral body was advanced automatically by charging and moved forward every day, and this fermentation vat bottom design is a ramp type, and its ratio of slope is 1:4, and the design of this gradient has increased the proal power of material, thereby reaches the effect and function from deslagging; The marsh gas fermentation pool inner bottom part is provided with heating unit 8, and temperature is about 35 ℃ in the maintenance pond, and dynamically fermentation period is 20 days automatic sludge discharges, and wherein the time is 15 days in fermentation vat, and getting into gas holder pond 12 still can have 5 days digestion time; Leading portion top at fermentation vat is provided with divider wall 4, and this section is the aerobic fermentation section, and in this section digestion, the carbonic acid gas of generation is discharged separately by the oxygen of bringing into outward; Partly be provided with deflected current wall 9 at the fermentation vat back segment, with prevent in the pond material flow unstable with sediment and short circuit phenomenon generation are arranged; The 11st, the overflow slag notch of marsh gas fermentation pool returns down entering gas holder pond 12 after the natural pond slag flows into the baffling passage automatically, and this gas holder pond is double for going out slag bath; Two ponds are integrated; Increased the fermentation time of natural pond slag further part, the biogas that it produced directly gets into gas holder 15, has reduced methane loss and secondary pollution problem after the natural pond slag is slagged tap; Last natural pond slag is discharged to interim storage slag bath 19 and waits to transport outward from baffling mouth 20,18 overflows of baffling passage automatically, promptly accomplishes whole high density biogas production process.

Covering of above-mentioned fermentation vat connects methane pipeline 7, connects back output, the 6th, methane outlet with tracheae.

The gas holder pond is provided with spacing automatic vent pipe 16; This tracheae is by the liquid level line position of gas holder top through to the gas holder bottom; When gas holder gas storage is elevated to vertex; Spacing vapor pipe breaks away from liquid level and automatic vent, to prevent that gas holder pressure from damaging protecting of gas holder slideway 13 too greatly and taking turns 14,17th, the biogas purger.

10 is the liquid level visor, is used to observe liquid level height situation, the 5th, and the material liquid level line can replenish the material that the pond is pressed in the position in good time.

This methane-generating pit integral body is arranged on underground; Over-ground part 0.5～1 meter scope that only is above the ground level, such setting had both helped charging and had slagged tap, and helped Winter protection again; Also be convenient to superstructure, pressing pond and methane-generating pit because of the position partly is to need the building brooder to give the environment insulation.

Claims

1. a high density position-pressure is characterized in that from the deslagging mathane generating pool: it presses pond (2), horizontal marsh gas fermentation pool (3) and gas holder pond (12) three parts to constitute by the position, and it is the material upstream end that last rheme is pressed the pond; This pond is provided with riffler and the whisking appliance (1) that stirs material; The outlet in this pond connects airtight horizontal marsh gas fermentation pool (3), this fermentation vat bottom design sloping type, and its ratio of slope is 1:4～6; The marsh gas fermentation pool inner bottom part is provided with heating unit (8); Be provided with divider wall (4) at the leading portion top of fermentation vat, be provided with deflected current wall (9) at the fermentation vat rear portion, gas holder pond (12) is inserted through deflected current wall outlet (11) in the rear portion of fermentation vat; This pond is provided with glass reinforced plastic gas holder (15), and this gas holder pond connects through baffling mouth (20), baffling passage (18) stores up slag bath (19); Covering of above-mentioned fermentation vat connects methane pipeline (7), and this pipeline feeds above-mentioned gas holder (15).

2. high density position-pressure according to claim 1 is from the deslagging mathane generating pool; It is characterized in that: the concrete basin of pond (2) for the band hypsokinesis gradient pressed in its position; Whisking appliance (1) is housed in the pond, and the position presses pool volume to be designed to above-mentioned marsh gas fermentation pool volumetrical 1/20.

3. high density position-pressure according to claim 1 is from the deslagging mathane generating pool; It is characterized in that: its marsh gas fermentation pool (3) is made up of with the back anaerobic fermentation zone preceding aerobic fermentation district; Preceding at divider wall (4) is the aerobic fermentation district; Be anaerobic fermentation zone behind the divider wall, this marsh gas fermentation pool is that concrete construction forms.

4. high density position-pressure according to claim 1 is characterized in that from the deslagging mathane generating pool: also for going out slag bath, the gas holder pond is a concrete constructions in its gas holder pond (12), and the middle and upper part is provided with glass reinforced plastic gas holder (15), and this gas holder top is outside the pond.