Fabricated anaerobic fermentation tank for biogas engineering

The design of the prefabricated anaerobic fermenter solves the problems of inconvenient transportation and installation and poor expandability of traditional fermenters, and realizes convenient installation, flexible adjustment and stable fermentation process.

CN223951008UActive Publication Date: 2026-02-27QINGDAO XINYUAN ENVIRONMENTAL TECH ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520443297.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-02-27
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

Traditional biogas projects use large-scale integrated anaerobic digesters, which are inconvenient to transport and install, difficult to replace individually when partially damaged, have poor expandability, and cannot flexibly adjust the number and size of tanks.

Method used

The tank adopts a modular design, with the tank body assembled by connecting brackets and connecting rods. The components are compact and easy to transport. On-site connection is achieved using bolts and nuts. The tank body is equipped with notches and covers for feeding and venting. The brackets are equipped with wheels for easy movement and locking.

Benefits of technology

It enables convenient transportation and installation of the tanks, allows for individual disassembly and replacement of parts, and flexibly adjusts the number of tanks, ensuring the stability and sealing of the fermentation process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223951008U_ABST
    Figure CN223951008U_ABST
Patent Text Reader

Abstract

The assembly type anaerobic fermentation tank comprises a tank body, the tank body is fixed in a connecting support, the connecting support is in a U-shaped frame shape, two vertical rods on one side of the connecting support are respectively and fixedly connected with a first connecting rod, a group of mounting holes are formed in the first connecting rod, and the mounting holes are arranged in the tank body. Two vertical rods on the other side of the connecting support are respectively and fixedly connected with a second connecting rod, the second connecting rod is provided with another group of mounting holes, the first connecting rod and the second connecting rod are arranged in a staggered manner, and the mounting holes of the first connecting rod and the second connecting rod are coaxially arranged. The assembly type anaerobic fermentation tank is formed by combining a plurality of tank bodies through connecting supports and connecting rods, each part is small in size and convenient to transport, a first connecting rod and a second connecting rod only need to be connected through bolts on an installation site and are locked through nuts, and operation is easy.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to fermentation tank equipment technical field, specifically relates to a kind of assembly type anaerobic fermentation tank for biogas engineering. BACKGROUND

[0002] In traditional biogas engineering, anaerobic fermentation tank is mostly integral structure, and this structure has many drawbacks. On the one hand, the integral fermentation tank is bulky, and transportation and installation are extremely inconvenient, especially in complex terrain or inconvenient transportation area, the transportation difficulty increases significantly, and large mechanical equipment is needed for installation, which is costly. On the other hand, when the fermentation tank is damaged locally, it is difficult to replace individual components, and often the entire tank body needs to be repaired or replaced, consuming a lot of manpower, material resources and time cost. Moreover, the expansion of the traditional fermentation tank is poor, and it is difficult to flexibly adjust the number and size of the tank body according to actual needs, and it cannot meet the growing and diversified development needs of biogas engineering. If an assembly type fermentation tank is set, it can be easily expanded, and when one fermentation tank is damaged, it can be disassembled for maintenance without affecting other fermentation processes. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide an assembly type anaerobic fermentation tank for biogas engineering, which is composed of multiple tank bodies through connecting brackets and connecting rods. Each component is small in size, facilitating transportation. At the installation site, only the first connecting rod and the second connecting rod need to be connected by bolts, and the nuts are locked, which is simple to operate.

[0004] An assembly type anaerobic fermentation tank for biogas engineering includes a tank body, which is fixed in a connecting bracket. The connecting bracket is in the shape of a U-shaped frame. Two vertical rods on one side of the connecting bracket are fixedly connected to a first connecting rod. A group of mounting holes are provided on the first connecting rod. Two vertical rods on the other side of the connecting bracket are fixedly connected to a second connecting rod. Another group of mounting holes are provided on the second connecting rod. The first connecting rod and the second connecting rod are arranged alternately, and the mounting holes of the two are coaxially arranged.

[0005] A pipe joint is fixedly arranged at the lower part of one end of the tank body corresponding to the first connecting rod. An interface valve is arranged at the lower part of the other end of the tank body.

[0006] As a further limitation of the technical solution, the tank body is arranged along the length direction, and the first connecting rod and the second connecting rod are connected by bolts through the corresponding mounting holes and locked by nuts. The interface valve is connected to the pipe joint through a connecting pipe.

[0007] As a further limitation of the technical solution, the lower side of the connecting support is provided with wheels respectively at four corners, and the wheels have a locking function.

[0008] As a further limitation of the technical solution, the two ends of the connecting support are respectively provided with ladders, and the ladders are fixedly connected to the connecting support.

[0009] As a further limitation of the technical solution, the upper side of the tank body is provided with a first notch and a second notch, and the first notch and the second notch are integrally formed with the tank body, one end of the first notch is hingedly connected to a first end cover, one end of the second notch is hingedly connected to a second end cover, an opening for feeding is formed in the inner bottom end of the first notch, and a sealing cover is hingedly arranged at the opening, a sealing ring for sealing is arranged between the sealing cover and the opening, the sealing cover and the sealing cover connecting ring fixedly arranged at the inner bottom end of the first notch are connected through bolts, an exhaust valve for exhaust is arranged in the second notch, and the exhaust valve is connected with a pipeline.

[0010] As a further limitation of the technical solution, the upper side of the tank body is provided with a first notch and a second notch, and the first notch and the second notch are integrally formed with the tank body, one end of the first notch is hingedly connected to a first end cover, one end of the second notch is hingedly connected to a second end cover, an opening for feeding is formed in the inner bottom end of the first notch, and a sealing cover is hingedly arranged at the opening, a sealing ring for sealing is arranged between the sealing cover and the opening, the sealing cover and the sealing cover connecting ring fixedly arranged at the inner bottom end of the first notch are connected through bolts, an exhaust valve for exhaust is arranged in the second notch, and the exhaust valve is connected with a pipeline.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] A plurality of tank bodies are combined through connecting supports and connecting rods, each component has a small volume, is convenient to transport, and only needs to be connected through bolts and locked by nuts at the installation site, so that operation is simple;

[0013] When a certain tank body or component has a problem, it can be individually disassembled and replaced without the need for large-scale maintenance of the entire fermentation tank;

[0014] The number of tank bodies can be increased or reduced along the length direction according to actual production requirements, the interface valve and the pipe joint are connected through the connecting pipe, and the size of the fermentation tank can be flexibly adjusted;

[0015] The wheels provided at the lower side of the connecting support have a locking function, which facilitates the movement and position adjustment of the fermentation tank in the construction site or during use, and the wheels can be locked after installation to ensure the stability of the fermentation tank.

[0016] The first notch and the second notch provided at the upper side of the tank body are respectively used for feeding and exhaust, the sealing cover at the first notch and the interface valve at the second notch are designed, which facilitates the feeding and exhaust operation of the operator, and the sealing ring at the sealing cover ensures the sealing property of the feeding port to prevent biogas leakage. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. It is expressly understood that the drawings are presented for purposes of illustration and description only and are not intended as a limitation on the scope of the application. It should be apparent that the drawings are not necessarily to scale as the illustrations are for the purposes of clarity, illustration and conformance with the specifications.

[0018] Figure 1 Structure diagram of the present application Figure 1 ;

[0019] Figure 2 Structure diagram of the present application Figure 2 ;

[0020] Figure 3 Top view of the present application

[0021] Figure 4 Structure diagram of the present application Figure 3 .

[0022] In the figure: 1, tank body; 2, connecting support; 3, first connecting rod; 4, second connecting rod; 5, sealing cover; 6, bolt; 7, second end cover; 8, second notch; 9, ladder; 10, wheel; 11, interface valve; 12, first notch; 13, support plate; 14, support seat; 15, first end cover; 16, reinforcing rib; 17, pipe joint; 18, interface valve. DETAILED DESCRIPTION

[0023] The present application will be further described below in conjunction with the accompanying drawings and embodiments. Figures 1-3

[0024] A prefabricated anaerobic fermentation tank for a biogas project comprises a tank body 1, which is fixed in a connecting support 2, the connecting support 2 being in the shape of a U-shaped frame, two vertical rods on one side of the connecting support 2 being fixedly connected with a first connecting rod 3, a group of mounting holes being formed in the first connecting rod 3, two vertical rods on the other side of the connecting support 2 being fixedly connected with a second connecting rod 4, another group of the mounting holes being formed in the second connecting rod 4, the first connecting rod 3 and the second connecting rod 4 being staggered and arranged with coaxial mounting holes.

[0025] A pipe joint 17 is fixedly arranged at the lower end of one side of the tank body 1, and an interface valve 18 is arranged at the lower end of the other side of the tank body 1.

[0026] In this embodiment, the connecting support 2 is fixedly connected with the tank body 1 through a reinforcing rib 16.

[0027] ​The tank body 1 is several and arranged along the length direction, the first connecting rod 3 and the second connecting rod 4 can be locked by the nut after the bolt 6 passes through the corresponding mounting hole of the first connecting rod 3 and the second connecting rod 4, and the interface valve 18 is connected with the pipe joint 17 through the connecting pipe.

[0028] In the embodiment, the interface valve 18 and the pipe joint 17 are quick connection valves and quick connection pipe joints 17, which are convenient for quick connection with the connecting pipe, and after connection, the interface valve 18 is opened, and the material is fed into the feed inlet of one tank body 1, which can enter the remaining tank bodies 1 through the interface valve 18 and the pipe joint 17.

[0029] The lower side of the connecting support 2 is provided with wheels 10 at four corners respectively, and the wheels 10 have a locking function.

[0030] In the embodiment, the wheels 10 facilitate the movement and locking of the connecting support 2.

[0031] The connecting support 2 is provided with ladders 9 at both ends respectively, and the ladders 9 are fixedly connected with the connecting support 2.

[0032] The ladders 9 facilitate the staff to climb to the upper part of the tank body 1.

[0033] As a further limitation of the technical solution, the upper side of the tank body 1 is provided with a first notch 12 and a second notch 8, the first notch 12 and the second notch 8 are designed in one piece with the tank body 1, one end of the first notch 12 is hingedly connected with a first end cover 15, one end of the second notch 8 is hingedly connected with a second end cover 7, an opening for feeding is formed in the inner bottom end of the first notch 12, and a sealing cover 5 is hingedly arranged at the opening, a sealing ring for sealing is arranged between the sealing cover 5 and the opening, the sealing cover 5 and the sealing cover 5 connecting ring fixedly arranged in the inner bottom end of the first notch 12 are connected by the bolt 6, and an exhaust valve 11 for exhaust is arranged in the second notch 8, and the exhaust valve 11 is connected with a pipeline.

[0034] In the embodiment, opening the sealing cover 5 can facilitate feeding, and the exhaust valve 11 facilitates the discharge of biogas after fermentation is completed.

[0035] The working principle is to use anaerobic microorganisms to decompose organic matter in an oxygen-free environment to produce biogas. The material to be fermented is fed into the tank body 1 through the opening in the first notch 12 when the sealing cover 5 is opened, and after the sealing cover 5 is closed, the material is subjected to anaerobic fermentation in the tank body 1. The biogas generated during the fermentation process is discharged and collected through the pipeline connected by the interface valve 18 in the second notch 8. Multiple tank bodies 1 are connected by connecting pipes, and all the materials can be easily put into the openings when the interface valve 18 is opened.

[0036] The upper side of the tank body 1 is fixedly connected with the support plate 13 through a set of uniformly arranged support seats 14.

[0037] The upper side of the support plate 13 is provided with patterns for increasing friction, facilitating the walking and standing of workers.

[0038] The working process of the utility model is as follows:

[0039] Each tank body 1 is placed at a predetermined position, the first connecting rod 3 and the second connecting rod 4 are connected through the bolt 6, and the nut is locked, so that the adjacent tank bodies 1 are connected into an integrated body, the connecting pipe connecting interface valve 18 and the pipe joint 17 are connected, the material flow connection between the tank bodies 1 is completed, during the installation process or when the position needs to be adjusted, the wheel 10 is unlocked, the fermentation tank is pushed to the appropriate position, then the wheel 10 is locked, the stability of the fermentation tank is ensured, the sealing cover 5 at the first notch 12 is opened, the material to be fermented is sent into the tank body 1 through the opening, the interface valve 18 is opened, the material enters other tank bodies 1 through the interface valve 18, after the feeding is completed, the sealing cover 5 is closed, and the sealing cover 5 is fastened with the sealing cover 5 through the bolt 6, so that the sealing property is ensured, the biogas generated during the fermentation process is discharged through the pipeline connected through the interface valve 18 in the second notch 8, and can be connected to subsequent biogas collection and utilization equipment.

[0040] The above only discloses the specific embodiments of the utility model, but the utility model is not limited to this, and any change that can be thought of by any person skilled in the art should fall within the protection scope of the utility model.

Claims

1. A prefabricated anaerobic fermentation tank for a biogas plant, comprising a tank body (1), characterized in that, The tank body (1) is fixed in the connecting support (2), the connecting support (2) is a U-shaped frame, one side of the connecting support (2) is fixedly connected with the first connecting rod (3) through two vertical rods, a group of mounting holes are formed in the first connecting rod (3), the other side of the connecting support (2) is fixedly connected with the second connecting rod (4) through two vertical rods, another group of mounting holes are formed in the second connecting rod (4), the first connecting rod (3) and the second connecting rod (4) are staggered and coaxially arranged. The tank body (1) is fixedly provided with a pipe joint (17) at the lower part of one end of the first connecting rod (3), and an interface valve (18) is arranged at the lower part of the other end of the tank body (1).

2. The fabricated anaerobic fermentation tank for a biogas plant according to claim 1, characterized in that, The tank body (1) is arranged along the length direction, the adjacent tank bodies (1) are connected through the first connecting rod (3) and the second connecting rod (4) by the bolt (6) passing through the corresponding mounting holes, and the first connecting rod (3) and the second connecting rod (4) are locked by the nut.

3. The fabricated anaerobic fermentation tank for a biogas plant according to claim 2, characterized in that, The connecting support (2) is provided with wheels (10) at the four corners of the lower side, and the wheels (10) have a locking function.

4. The fabricated anaerobic fermentation tank for a biogas plant according to claim 3, characterized in that, The connecting support (2) is provided with ladders (9) at the two ends, and the ladders (9) are fixedly connected with the connecting support (2).

5. The fabricated anaerobic fermentation tank for a biogas plant according to claim 4, characterized in that, The upper side of the tank body (1) is provided with a first notch (12) and a second notch (8), the first notch (12) and the second notch (8) are integrally formed with the tank body (1), one end of the first notch (12) is hingedly connected with a first end cover (15), one end of the second notch (8) is hingedly connected with a second end cover (7), an opening for feeding is formed in the inner bottom of the first notch (12), and a sealing cover (5) is hingedly arranged at the opening, a sealing ring for sealing is arranged between the sealing cover (5) and the opening, the sealing cover (5) and the sealing cover (5) connecting ring fixedly arranged at the inner bottom of the first notch (12) are connected by the bolt (6), an exhaust valve (11) for exhaust is arranged in the second notch (8), and the exhaust valve (11) is connected with a pipeline.

6. The fabricated anaerobic fermentation tank for a biogas plant according to claim 4, characterized in that, The upper side of the tank body (1) is fixedly connected with a support plate (13) through a group of uniformly arranged support seats (14).