CN114524595B

CN114524595B - Ecological fermentation system

Info

Publication number: CN114524595B
Application number: CN202210129245.9A
Authority: CN
Inventors: 叶炳暖; 邹卫武
Original assignee: Huizhou Xingmu Environmental Protection Technology Co ltd
Current assignee: Huizhou Xingmu Environmental Protection Technology Co ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2023-06-06
Anticipated expiration: 2042-02-11
Also published as: CN114524595A

Abstract

The invention belongs to the technical field of waste treatment of farms, and particularly relates to an ecological fermentation system, which comprises a methane tank, a water inlet pipe, a water outlet pipe, a slag discharge pipe and a methane collecting pipe, wherein the inner wall of the methane tank is covered with an impermeable bottom film, and the mouth part of the methane tank is covered with a top film; the water inlet pipe, the water outlet pipe, the slag discharging pipe and the biogas collecting pipe are communicated with the biogas digester; the top film comprises a first film and a second film which are overlapped with each other, and the edges of the first film and the second film are fused with each other to form a sealed cavity; the cavity is connected with a pipe joint, and the pipe joint is connected with a blower pipeline. In rainy days, the air can be blown into the cavity formed by the first film and the second film by the blower, so that the cavity is inflated and swelled; and then make first film arch become dome shape, when the rainwater falls to the top film, the rainwater can be arranged around the top film, consequently can prevent the problem that the top film ponding is too much and leads to collapsing.

Description

Ecological fermentation system

Technical Field

The invention belongs to the technical field of treatment of excrement of farms, and particularly relates to an ecological fermentation system.

Background

Large amounts of faecal matter are produced daily in farms, in particular pig farms. At present, the excrement is treated by adopting an ecological fermentation system for fermentation and decomposition. The ecological fermentation system is to dig a methane tank in the empty space, paste an impermeable film in the tunnel, and then cover methane Chi Koubu by adopting a black film; after the excrement is discharged into the methane tank, the excrement is fermented in the methane tank and generates a large amount of methane, the top film can be swelled upwards by the methane, and waste residues in the methane tank can be discharged out of the methane tank through the pressure of the methane. In order to enable the top film to bulge, the area of the top film covered on the methane tank opening is larger than that of the methane tank opening, so that the top film can be recessed into the methane tank to form a concave cavity when the methane tank is built. When the rain is encountered, rainwater can be deposited in the concave cavity of the top film; therefore, the bearing of the top mould is increased, and the top membrane is easy to collapse.

Disclosure of Invention

The invention aims to provide an ecological fermentation system, which solves the problems that the existing ecological fermentation system is easy to collapse due to ponding caused by inward sinking of a top film because the top film is not supported by biogas pressure in the early stage after being built.

In order to achieve the above purpose, the ecological fermentation system provided by the embodiment of the invention comprises a methane tank, a water inlet pipe, a water outlet pipe, a slag discharging pipe and a methane collecting pipe, wherein the inner wall of the methane tank is covered with an impermeable bottom film, and the mouth part of the methane tank is covered with a top film; the water inlet pipe, the water outlet pipe, the slag discharging pipe and the biogas collecting pipe are communicated with the biogas digester; the top film comprises a first film and a second film which are overlapped with each other, and the edges of the first film and the second film are fused with each other to form a sealed cavity; the cavity is connected with a pipe joint, and the pipe joint is connected with a blower pipeline.

Further, the external dimension of the first film is smaller than the external dimension of the second film, so that the edge of the second film extends outwards along the welding position of the first film and the second film.

Further, the second film edge inner coil is wrapped with a connecting rod, and two ends of the connecting rod are provided with fixing rods inserted into the side walls of the anchoring grooves.

Further, a plurality of dividing grooves are formed in the edge of the second film, fixing portions are formed in the second film by the aid of the adjacent dividing grooves, connecting rods are wrapped in the inner windings of the fixing portions, and fixing rods inserted into the side walls of the anchoring grooves are arranged at two ends of each connecting rod.

Further, the slag discharging pipes are arranged in a plurality of groups and are sequentially arranged; the slag discharging pipe comprises a horizontal section, two ends of the horizontal section extend to form inclined sections, and the upper end of each inclined section extends to form a slag discharging section; the horizontal section is attached to the bottom of the methane tank, and the inclined section is attached to the side wall of the methane tank; the top of the horizontal section is of an opening structure; a movable shaft and a plurality of support pieces for supporting the movable shaft are arranged in the horizontal section; the movable shaft is provided with two groups of poking assemblies which are oppositely arranged, the movable shaft is connected with a haulage rope, one end of the haulage rope penetrates out of the slag discharging section and is connected with a traction mechanism, and the traction mechanism pulls the movable shaft to reciprocate.

Further, the stirring assembly comprises a plurality of pushing claws arranged on the movable shaft along a spiral line and a contraction pushing plate arranged close to the end part of the movable shaft; the shrinkage pushing plate comprises a connecting sleeve and a plurality of fan-shaped pushing plates, the fan-shaped pushing plates are sequentially arranged along the circumferential direction, the small end of each fan-shaped pushing plate is rotationally connected with the connecting sleeve, and the large end of each fan-shaped pushing plate is partially overlapped with the adjacent fan-shaped pushing plate; and a limiting ring for limiting the fan-shaped push plate to turn backwards is further arranged on the connecting sleeve.

Further, the pushing claw is rotationally connected with a connecting seat, the connecting seat is connected with the movable shaft, and a limiting part for preventing the pushing claw from reversely rotating is arranged on the connecting seat.

The above technical solutions in the ecological fermentation system provided by the embodiments of the present invention have at least the following technical effects:

1. when the air pressure of the biogas in the biogas digester can not support the top film to bulge, the air can be blown into the cavity formed by the first film and the second film by the blower in rainy weather, so that the cavity is inflated and bulged; and then make first film arch become dome shape, when the rainwater falls to the top film, the rainwater can be arranged around the top film, consequently can prevent the problem that the top film ponding is too much and leads to collapsing. When the air pressure in the methane tank is enough to support the top film to arch, the air in the cavity can be discharged.

2. When the slag discharge pipe is blocked, the second film can expand into the methane tank by inflating the cavity, so that the air pressure in the methane tank is increased, the slag discharge pressure is increased, and the dredging of the slag discharge pipe is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of the ecological fermentation system according to embodiment 1 of the present invention in an expanded state.

FIG. 2 is an expanded view of the top film of the ecological fermentation system according to embodiment 2 of the present invention.

FIG. 3 is a block diagram of the deslagging pipe of the ecological fermentation system provided in embodiment 2 of the invention.

FIG. 4 is an enlarged view of two movable shafts of the ecological fermentation system according to the embodiment of the present invention.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the invention and should not be construed as limiting the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present invention and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present invention will be understood by those of ordinary skill in the art according to specific circumstances.

In an embodiment 1 of the present invention, referring to fig. 1, an ecological fermentation system includes a biogas digester 100, a water inlet pipe 200, a water outlet pipe 300, a slag discharging pipe 400, and a biogas collecting pipe 500. The inner wall of the biogas digester 100 is covered with an impermeable bottom film 600, and the mouth of the biogas digester 100 is covered with a top film 700. The water inlet pipe 200, the water outlet pipe 300, the slag discharging pipe 400 and the biogas collecting pipe 500 are communicated with the biogas digester 100. The top film 700 includes a first film 701 and a second film 702 that are laminated to each other, and edges of the first film 701 and the second film 702 are fused to each other to form a sealed cavity 703. The chamber 703 is connected to a pipe fitting (not shown) that is connected to the blower pipe. When the air pressure of the biogas in the biogas digester 100 is insufficient to support the swelling of the top film 700, the air can be blown into the cavity 703 formed by the first film 701 and the second film 702 by the blower during rainy weather, so that the cavity 703 is inflated and swelled. Further, the first film 701 is arched to be a dome shape, and when rainwater falls onto the top film 700, the rainwater can be discharged to the periphery of the top film 700, so that the problem of collapse caused by excessive water accumulation of the top film 700 can be prevented. When the air pressure in the biogas digester 100 is sufficient to support the arching of the top film 700, the air in the cavity 703 may be vented. And, when the slag discharging pipe 400 is blocked, the second film 702 can be inflated into the methane tank by inflating the cavity 703, so that the air pressure in the methane tank 100 is increased, the slag discharging pressure is increased, and the slag discharging pipe 400 is convenient to dredge.

Further, referring to fig. 1 and fig. 1, the outer dimension of the first film 701 is smaller than the outer dimension of the second film 702, so that the edge of the second film 702 extends outward along the welding position of the first film 701 and the second film 702. In this embodiment, the edge of the second film 702 may be fixed in the anchoring groove 101, and the first film 701 is completely outside the anchoring groove 101, so as to avoid the problem that the filling in the anchoring groove 101 is swelled when the cavity 703 is inflated, and further ensure the sealing performance of the anchoring groove 101 and the top film 700.

Further, referring to fig. 1, the edge of the second film 702 is wrapped with a connecting rod 710, and fixing rods 711 inserted into the side walls of the anchoring groove 100 are provided at both ends of the connecting rod 710. In this embodiment, the fixing rod 711 and the connecting rod 710 fix the top film 700, which increases the strength of the connection between the top film 700 and the anchoring groove 101, and avoids the problem that the edge of the top film 700 is pulled out from the anchoring groove 101.

Further, referring to fig. 2, a plurality of dividing grooves 704 are formed at the edge of the second film 702, the adjacent dividing grooves 704 form the second film 702 with fixing portions, the inner windings of the fixing portions are wrapped with one connecting rod 710, and the fixing rods 711 inserted into the side walls of the anchoring grooves 101 are provided at both ends of the connecting rod 701. In the Shi Lie, the pulling force of the second film 702 can be uniformly distributed, and the strength of the connection is increased; at the same time, the second membrane 702 is facilitated to wrap around the connecting rod 710.

Further, referring to fig. 1 and 3, the slag discharging pipes 400 are arranged in a plurality of groups in sequence. The slag discharging pipe 400 comprises a horizontal section 401, two ends of the horizontal section 401 are extended with inclined sections 402, and the upper end of each inclined section 402 is extended with a slag discharging section 403. The horizontal section 401 is attached to the bottom of the biogas digester 100, and the inclined section 402 is attached to the side wall of the biogas digester 100. The top of the horizontal section 401 has an open structure, so that the slag can be pressed into the slag discharging pipe 400. The horizontal segment 401 is provided therein with a movable shaft 410 and a plurality of supporting members 411 supporting the movable shaft 410. The movable shaft 410 is provided with two sets of toggle assemblies 420 which are oppositely arranged, the movable shaft 410 is connected with a traction rope 412, one end of the traction rope 412 penetrates out of the slag discharging section 403 and is connected with a traction mechanism (not shown in the drawing), and the traction mechanism pulls the movable shaft 410 to reciprocate. In this embodiment, when the slag discharging pipe 400 is not smooth, the traction ropes 412 at two ends of the movable shaft 410 are pulled by the two traction mechanisms, so that the movable shaft 410 is pulled to reciprocate, when the movable shaft 410 reciprocates, the stirring component 420 can push the waste slag in the horizontal section 401 to push the waste slag in the inclined section 402, and the waste slag in the slag discharging pipe 400 can be pushed to be discharged outwards through repeated reciprocating pushing, so that the dredging of the slag discharging pipe 400 is achieved, and the waste slag in the biogas digester 100 is helped to be discharged.

Further, referring to fig. 3 and 4, the toggle assembly 420 includes a plurality of pushing fingers 421 disposed along a spiral line on the movable shaft 410 and a retractable push plate 422 disposed near an end of the movable shaft 410. The shrinkage push plate 422 comprises a connecting sleeve 423 and a plurality of fan-shaped push plates 424, each fan-shaped push plate 424 is sequentially arranged along the circumferential direction, the small end of each fan-shaped push plate 424 is rotatably connected with the connecting sleeve 423, and the large end of each fan-shaped push plate 424 is partially overlapped with the adjacent fan-shaped push plate 424. And a limiting ring 425 for limiting the fan-shaped push plate 424 to turn backwards is also arranged on the connecting sleeve 423. In this embodiment, when the movable shaft 410 reciprocates, the waste residue is pushed to the inclined section of the slag discharging pipe 400 by the pushing claw 421 and pushed into the inclined section by the fan-shaped pushing plate 424, specifically, when the movable shaft 410 moves to the inclined section, the fan-shaped pushing plate 424 receives resistance of the waste residue, so that the waste residue is unfolded and pushed into the inclined section, and when the movable rod 410 moves reversely, the fan-shaped pushing plate 424 receives a reaction force, so that the waste residue is contracted, and further, the reverse pushing of the waste residue can be avoided.

Further, referring to fig. 4, the pushing claw 421 is rotatably connected with a connection seat 426, the connection seat 426 is connected with the movable shaft 410, and a limit portion for preventing the pushing claw 421 from rotating reversely is provided on the connection seat 426. In this embodiment, the pushing claw 421 is contracted onto the movable shaft 410 when the movable shaft 410 moves reversely, and the pushing claw 421 is expanded by resistance of the waste slag when pushing.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. An ecological fermentation system comprises a methane tank, a water inlet pipe, a water outlet pipe, a slag discharging pipe and a methane collecting pipe, wherein the inner wall of the methane tank is covered with an impermeable bottom film, and the mouth part of the methane tank is covered with a top film; the water inlet pipe, the water outlet pipe, the slag discharging pipe and the biogas collecting pipe are communicated with the biogas digester; the top film is characterized by comprising a first film and a second film which are mutually overlapped, wherein the edges of the first film and the second film are mutually fused to form a sealed cavity; the cavity is connected with a pipe joint, and the pipe joint is connected with a blower pipeline; the slag discharging pipes are arranged in a plurality of groups and are sequentially arranged; the slag discharging pipe comprises a horizontal section, two ends of the horizontal section extend to form inclined sections, and the upper end of each inclined section extends to form a slag discharging section; the horizontal section is attached to the bottom of the methane tank, and the inclined section is attached to the side wall of the methane tank; the top of the horizontal section is of an opening structure; a movable shaft and a plurality of support pieces for supporting the movable shaft are arranged in the horizontal section; two groups of stirring assemblies which are oppositely arranged are arranged on the movable shaft, a traction rope is connected to the movable shaft, one end of the traction rope penetrates out of the slag discharging section and is connected with a traction mechanism, and the traction mechanism pulls the movable shaft to reciprocate; the stirring assembly comprises a plurality of pushing claws arranged on the movable shaft along a spiral line and a contraction pushing plate arranged close to the end part of the movable shaft; the shrinkage pushing plate comprises a connecting sleeve and a plurality of fan-shaped pushing plates, the fan-shaped pushing plates are sequentially arranged along the circumferential direction, the small end of each fan-shaped pushing plate is rotationally connected with the connecting sleeve, and the large end of each fan-shaped pushing plate is partially overlapped with the adjacent fan-shaped pushing plate; a limiting ring for limiting the fan-shaped push plate to turn backwards is further arranged on the connecting sleeve; the pushing claw is rotationally connected with a connecting seat, the connecting seat is connected with the movable shaft, and a limiting part for preventing the pushing claw from reversely rotating is arranged on the connecting seat.

2. The ecological fermentation system of claim 1, wherein: the external dimension of the first film is smaller than that of the second film, so that the edge of the second film extends outwards along the welding position of the first film and the second film.

3. The ecological fermentation system of claim 2, wherein: the second film edge inner coil is wrapped with a connecting rod, and fixing rods inserted into the side walls of the anchoring grooves are arranged at two ends of the connecting rod.

4. An ecological fermentation system according to claim 3, wherein: the edge of the second film is provided with a plurality of dividing grooves, the adjacent dividing grooves enable the second film to be formed with fixing portions, the inner windings of the fixing portions are wrapped with connecting rods, and two ends of each connecting rod are provided with fixing rods inserted into the side walls of the anchoring grooves.