CN212713498U

CN212713498U - Anaerobic fermentation device

Info

Publication number: CN212713498U
Application number: CN202020266062.8U
Authority: CN
Inventors: 徐挨辉; 程丽君; 曾庆国
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2021-03-16
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses an anaerobic fermentation device, include the product jar and the solid-liquid separation ware that are connected through raw materials pipeline and pump conveyor, still include the fermentation tank body of back company solid-liquid separation ware, the internal CSTR anaerobism pond and the ABR anaerobism pond that are equipped with of fermentation tank, and separate CSTR anaerobism pond and ABR anaerobism pond through spaced last baffle and lower baffle, be equipped with the baffling baffle in the ABR anaerobism pond, the CSTR anaerobism pond is equipped with the agitator.

Description

Anaerobic fermentation device

Technical Field

The utility model relates to a breed waste water utilization technical field, specifically be an anaerobic fermentation device that can be used for breeding waste water utilization

Background

The existing reactors for treating biogas are anaerobic reaction tanks, all adopt a top stirring process, and are not subjected to modular treatment, so that the structure causes heavy equipment, complex flow and poor effect, and can not play a role in anaerobic fermentation at all, so that materials cannot be fully mixed with strains in the anaerobic reaction tanks, the materials are greatly wasted, labor and money are wasted, and the reactors are necessary to be improved for the resource utilization of aquaculture wastewater.

For this purpose, we have designed a CSTR anaerobic reactor tank with baffle plates.

SUMMERY OF THE UTILITY MODEL

The anaerobic fermentation device is not enough to the prior art, the utility model provides an anaerobic fermentation device makes the material can the downstream after mixing, and the integration, container gas production volume reach and improve greatly to form two-way flow around, effectively improve the flow of material, and then increase dwell time.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anaerobic fermentation device, includes the product jar and the solid-liquid separator who connect through raw materials pipeline and pump conveyor, still includes the fermentor body of back company solid-liquid separator, internal CSTR anaerobism pond and the ABR anaerobism pond that is equipped with of fermentor, and separates CSTR anaerobism pond and ABR anaerobism pond through spaced last baffle and lower baffle, is equipped with baffling baffle in the ABR anaerobism pond, and the CSTR anaerobism pond is equipped with the agitator.

Preferably, the solid-liquid separator is arranged on the outer side of the top of the fermentation tank body.

Preferably, the fermentation tank body is also provided with a pressure sensor and a temperature sensor.

The utility model has the advantages that: the materials can move downwards after being mixed, the materials are integrated, and the gas production rate of the container is greatly improved, so that bidirectional flow is formed around, the flow of the materials is effectively improved, and the retention time is further prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Detailed Description

As shown in fig. 1, an anaerobic fermentation device comprises a product tank and a solid-liquid separator which are connected through a raw material conveying pipeline and a pump conveying device, and further comprises a fermentation tank body 1 which is connected with the solid-liquid separator, wherein adjacent CSTR anaerobic tanks 2 and ABR anaerobic tanks 3 are arranged in the fermentation tank body 1, the CSTR anaerobic tanks 2 and the ABR anaerobic tanks 3 are separated by upper partition plates 5 and lower partition plates 6 at intervals, baffle plates 4 are arranged in the ABR anaerobic tanks 3, and the CSTR anaerobic tanks 2 are provided with stirrers 7.

Preferably, the solid-liquid separator is arranged at the outer side of the top of the fermentation tank body 1.

Preferably, the fermentation tank body 1 is further provided with a pressure sensor and a temperature sensor.

The baffling baffle plates of the ABR anaerobic tank 3 are arranged in a left-right-left mode by taking the axial line of the fermentation tank as the center, so that the internal liquid flows in an S shape, the flowing speed is increased, and the turbulence degree is increased; the anaerobic fermentation tank and the raw material device are in the structure of the existing anaerobic fermentation tank and the raw material device, the anaerobic fermentation tank and the top and the bottom of each device are provided with openings, underground pipelines are organically combined to work like robots, the anaerobic fermentation tank and the raw material device can be transferred, time and labor are saved, and automation and modularization are well embodied.

In the specific embodiment of the utility model, see fig. 1, an anaerobic fermentation device for preparing liquid fertilizer, natural gas includes following steps:

s1, obtaining solid waste content of solid cow dung raw materials for organic fertilizer and natural gas fermentation of about 20%, pig dung of about 10% and sheep dung of about 15%, separating the solid raw materials in an aerobic fermentation yard to remove impurities in the raw materials, and drying the solid raw materials after sand removal;

s2, hydrolyzing and acidifying the solid raw material subjected to impurity removal in the step S1 in a homogenizing tank, wherein the solid waste content is reduced to 8% -12%. Burying the homogenizing tank in a basement with the depth of 3m, and fully wetting the solid raw materials to obtain a wet mixed fermentation material;

s3, emulsifying and hydrolyzing the mixed fermentation material in the step S2 in a slurry hydrothermal treatment module, wherein a slurry hydrothermal treatment workshop comprises a heating tank, a cracking tank and a condensing tank, the temperature is 38 ℃ or 55 ℃, the temperature is selected according to the content of raw materials, the carbon-nitrogen ratio is 10-20, and biogas, biogas slurry and biogas residues are collected;

s4, transferring the mixed fermented material subjected to stack retting treatment in the step S3 to a plant washing tower, adding plant liquid into the tower for deodorization, adding a baffling baffle plate for high-speed stirring to uniformly mix the mixed fermented material and the plant liquid, and removing odor-containing impurities such as hydrogen sulfide;

s5, the first four steps are a pretreatment process of raw materials, the raw materials in the step S4 enter an anaerobic fermentation tank to be fermented for 28-30 days, an ABR anaerobic system is utilized, modular production is carried out, automatic temperature adjustment, temperature control and pressure control are carried out, biogas residues are recycled through a circulating biogas liquid pool, semi-finished biogas, biogas liquid and biogas residues are generated, and the biogas enters the next workshop;

and S6, discharging the marsh gas in the S5 into a marsh gas purification and pressurization module for purification, desulfurization and denitrification. Wherein, the biogas purification and pressurization workshop comprises a hot water tank, a biogas pressure stabilizing tank, two desulfurization tanks, two denitrification tanks, a natural gas pressure stabilizing tank, four pressurization pumps and four refrigeration drying machines, and finally is a product;

s7, discharging the biogas residues and biogas slurry in the S5 into an organic fertilizer module, feeding the organic fertilizer module into a bacteria culturing machine and a precipitation tank humic acid digester, and then separating and culturing the organic fertilizer module into a nutrition disc which is the final product.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. The utility model provides an anaerobic fermentation device, include the product jar and the solid-liquid separation ware that connect through raw materials pipeline and pump conveyor, a serial communication port, still include the fermentor body (1) of back company solid-liquid separation ware, be equipped with adjacent CSTR anaerobism pond (2) and ABR anaerobism pond (3) in the fermentor body (1), and separate CSTR anaerobism pond (2) and ABR anaerobism pond (3) through spaced last baffle (5) and lower baffle (6), be equipped with baffling baffle (4) in ABR anaerobism pond (3), CSTR anaerobism pond (2) are equipped with agitator (7).

2. The anaerobic fermentation device according to claim 1, wherein the solid-liquid separator is arranged outside the top of the fermentor body (1).

3. The anaerobic fermentation device of claim 1, wherein the fermentation tank body (1) is further provided with a pressure sensor and a temperature sensor.