CN214300112U

CN214300112U - Anaerobic fermentation tank device capable of continuously operating without tank cleaning

Info

Publication number: CN214300112U
Application number: CN202022672238.2U
Authority: CN
Inventors: 束剑峰; 戴辉; 许玉超; 王康; 练梅华; 李稀
Original assignee: Jiangsu Sugang Heshun Biotechnology Co ltd
Current assignee: Jiangsu Yancheng Port Yannong Circular Agriculture Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-09-28
Anticipated expiration: 2030-11-18

Abstract

The utility model relates to a but need not clear jar continuous operation anaerobic fermentation jar device, the device bottom designs into inverted frustum shape through reinforced concrete, utilize devices such as central mixer, single spiral degritting machine, motorised valve, can let the organic matter fully dissolve in the raw materials, improve marsh gas yield, effectively concentrate the insoluble substance in the raw materials and deposit single spiral degritting machine sediment inlet department, the precipitate of in time discharging prevents that the internal precipitate of jar from long-term accumulation, influence anaerobic fermentation jar's effective volume to need artifical periodic cleaning.

Description

Anaerobic fermentation tank device capable of continuously operating without tank cleaning

Technical Field

The utility model belongs to a biogas production device, in particular to an anaerobic fermentation tank device which can continuously operate without tank cleaning.

Background

With the change of rural production and life style, more and more agricultural wastes such as crop straws, livestock and poultry manure and the like are produced. The national advocates resource utilization according to the resource principle, agricultural wastes are valuable resources, can be used as fuels, fertilizers, feeds, industrial raw materials and the like after being treated, have great economic value, utilize the agricultural waste resources, not only can reduce the pollution to the environment, but also can improve the physical and chemical properties of soil, improve the soil fertility, improve the yield and the quality of agricultural products and increase the product competitiveness.

The biogas engineering can obtain biogas, biogas residues and biogas slurry by anaerobic fermentation of agricultural wastes, livestock and poultry manure and the like. The methane is used as renewable clean energy and has wide application. The biogas residues and the biogas slurry contain a large amount of organic matters, humic acid and other nutrient substances, and the biogas residues are high-quality organic fertilizers. The anaerobic fermentation tank for the livestock and poultry manure in the prior art faces the problem of needing to be cleaned regularly. The main reason is because the sediment that contains in the animal manure can't decompose after getting into anaerobic fermentation tank, along with the extension of service life, leads to the jar interior sediment more and more, and anaerobic fermentation tank's effective volume reduces gradually, and corresponding in order to prevent the acidizing, organic load also can only corresponding reduce gradually until regularly emptying the material clearance anaerobic fermentation tank. The patent of the utility model aims at fine solution above-mentioned technical problem.

Disclosure of Invention

The utility model aims at providing a but need not clear jar continuous operation anaerobic fermentation jar device to solve the technical problem who exists in the above-mentioned background.

In order to achieve the purpose, the invention provides the following technical scheme:

an anaerobic fermentation tank device capable of continuously operating without tank cleaning, which comprises a tank body, a central stirrer, a single-spiral sand remover, an electric valve and a reinforced concrete inclined plane; the central stirrer is arranged right below the middle of the top of the tank body; the reinforced concrete inclined plane is arranged at the bottom of the tank body, so that the bottom of the tank body is in an inverted frustum shape; the single-spiral sand removing machine is fixed on the reinforced concrete inclined plane and extends along the upper surface of the reinforced concrete inclined plane, and the single-spiral sand removing machine extends out of the body of the tank body through a hole structure formed in the outer wall of the tank body, so that the single-spiral sand removing machine is provided with a part arranged inside the tank body and a part positioned outside the tank body; the single-spiral desander is provided with a slag inlet and a slag outlet, wherein the slag inlet is formed in the tank body and flush with the lowest part of the reinforced concrete inclined plane, the slag outlet is formed in the part, outside the tank body, of the single-spiral desander, of the tank body, the slag outlet is formed in an angle with the single-spiral desander, and the electric valve is installed in the position of the slag outlet of the single-spiral desander.

Further: the height and the inner diameter of the tank body are both 16.8m, and the effective volume is 3750m³。

Further: the central stirring machines are 2, the power is 11.5kw/h, and the central stirring machines are respectively positioned at the positions 5m and 10m away from the bottom of the tank body.

Further: the single-screw stirrer has 4 stirring machines, the power is 7.5kw/h, and the stirring machines are uniformly distributed in four directions.

Further: the inclination angle of the reinforced concrete inclined plane is 25-30 degrees.

Further: the horizontal width of the reinforced concrete inclined plane is 1m-1.5 m.

Compared with the prior art, the invention has the advantages that the central stirrer ensures that organic matters in the raw materials are fully dissolved, improves the utilization rate of the raw materials and increases the gas production rate of the device; insoluble substances are finally deposited near a slag inlet of the single-screw sand remover due to the effects of high density, stirring of the stirrer and collapse of the inclined plane, so that the insoluble substances are conveniently discharged out of the fermentation tank in time, the accumulation of precipitates in the tank body is avoided, the effective volume of the tank body is gradually reduced, the gas yield is reduced to 60% -70% of the original gas yield, and the tank body is cleaned by emptying the materials in 2-3 years generally. The device of the invention improves the gas production coefficient from the original 1.3 to 1.5, replaces the step of cleaning the tank body regularly, and ensures that the gas production rate of the device is always maintained at 5500 square/day or above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIGS. 1 and 2 are sectional views of an anaerobic fermenter unit.

Wherein: a tank body-1; a central mixer-2; single spiral sand remover-3; an electric valve-4; reinforced concrete inclined plane-5; a feed inlet-6; a slag outlet-7.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but should not be construed as limiting the scope thereof.

As shown in figure 1 and figure 2, the anaerobic fermentation tank device capable of continuously running without tank cleaning of the utility model consists of a tank body (1), a central stirring machine (2), a single-spiral sand removing machine (3), an electric valve (4) and a reinforced concrete inclined plane (5). The height and the inner diameter of the tank body (1) are both 16.8m, and the effective volume is 3750m³(ii) a 2 central mixers (2) with the power of 11.5kw/h are arrangedThe distances from the bottom of the tank body (1) to the right lower part of the middle of the top of the tank body (1) are respectively 5m and 10 m; the reinforced concrete inclined plane (5) is arranged at the bottom of the tank body (1), so that the bottom of the tank body is in an inverted frustum shape, the inclined angle of the reinforced concrete inclined plane is 30 degrees, and the horizontal width W is 1.2 m; 4 single-spiral sand removing machines (3) with the power of 7.5kw/h are fixed on the reinforced concrete inclined plane (5) and are uniformly distributed in 4 directions, the angle of every two adjacent single-spiral sand removing machines is 90 degrees, the slag inlet of each single-spiral sand removing machine (3) is flush with the lowest part of the reinforced concrete inclined plane (5), and the slag outlet (7) of each single-spiral sand removing machine (3) is positioned outside the tank body; the electric valve (4) is arranged at a slag outlet of the single-spiral sand removing machine (3).

500 tons of chicken manure are pumped into the tank body from the feed inlet (6) every day, and are continuously stirred by the central stirrer (2), so that organic matters in the raw materials are fully dissolved, and insoluble substances are precipitated to the edge of the bottom of the tank body (1) under the combined action of gravity and centrifugal force generated by stirring; opening the electric valve (4) 1 time a day; if a large amount of raw material liquid flows out, slag discharge is not needed; if a large amount of raw material liquid does not flow out, opening the single-screw desander (3) to remove slag until a large amount of liquid flows out, and closing the electric valve (4) and the single-screw desander (3); the slag removal amount is 2m per day³The gas production is 5500 formula.

Although the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable to the field of the invention, and further modifications may be readily made by those skilled in the art, and the invention is not limited to the details given herein, without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. The utility model provides a but need not clear jar continuous operation anaerobic fermentation tank device which characterized in that: the device comprises a tank body (1), a central stirring machine (2), a single-spiral sand removing machine (3), an electric valve (4) and a reinforced concrete inclined plane (5); the central stirrer (2) is arranged right below the middle of the top of the tank body (1) and is arranged in the body of the tank body; the reinforced concrete inclined plane (5) is arranged at the bottom of the tank body (1) to enable the bottom of the tank body (1) to be in an inverted round table shape; the single-spiral sand removing machine (3) is fixed on the reinforced concrete inclined plane (5) and extends along the upper surface of the reinforced concrete inclined plane (5), and the single-spiral sand removing machine (3) extends out of the body of the tank body (1) through a hole structure arranged on the outer wall of the tank body (1), so that the single-spiral sand removing machine (3) is provided with a part positioned inside the tank body (1) and a part positioned outside the tank body (1); single spiral degritting machine (3) have slag inlet and slag notch (7), the slag inlet set up in the body of the jar body (1) inside and with reinforced concrete inclined plane (5) are the lowest to flush, slag notch (7) set up in single spiral degritting machine (3) are located the outside part of the jar body (1), slag notch (7) with single spiral degritting machine (3) angle sets up, install motorised valve (4) single spiral degritting machine (3) the position of slag notch (7).

2. The anaerobic fermenter according to claim 1, wherein the anaerobic fermenter is operated continuously without tank cleaning: the height and the inner diameter of the tank body (1) are both 16.8m, and the effective volume is 3750m³。

3. The anaerobic fermenter according to claim 1, wherein the anaerobic fermenter is operated continuously without tank cleaning: the central stirring machines (2) are 2, the power is 11.5kw/h, and the central stirring machines are respectively positioned at the positions 5m and 10m away from the bottom of the tank body.

4. The anaerobic fermenter according to claim 1, wherein the anaerobic fermenter is operated continuously without tank cleaning: the single-spiral sand removing machine (3) has 4 sets, the power is 7.5kw/h, and the sand removing machines are uniformly distributed in four directions.

5. The anaerobic fermenter according to claim 1, wherein the anaerobic fermenter is operated continuously without tank cleaning: the inclination angle of the reinforced concrete inclined plane (5) is 25-30 degrees.

6. The anaerobic fermenter according to claim 1, wherein the anaerobic fermenter is operated continuously without tank cleaning: the horizontal width of the reinforced concrete inclined plane (5) is 1m-1.5 m.

7. The anaerobic fermenter according to claim 1, wherein the anaerobic fermenter is operated continuously without tank cleaning: the biogas production rate of the anaerobic fermentation tank device is always maintained at 5500 square/day and above.