CN111808726B

CN111808726B - Agricultural methane tank with desilting function

Info

Publication number: CN111808726B
Application number: CN202010714837.8A
Authority: CN
Inventors: 程学顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-03-23
Anticipated expiration: 2040-07-23
Also published as: CN111808726A

Abstract

The invention discloses an agricultural biogas pool with a dredging function, which comprises a pool body, wherein the upper end of the pool body is provided with a gas collecting hood, the middle part of the gas collecting hood is provided with a movable cover, a material lifting pipe is arranged inside the pool body, a connecting rod is rotatably connected inside the material lifting pipe, and the lower end of the connecting rod is fixedly connected with a turbine for driving biogas residues to move upwards inside the material lifting pipe. And then the stirring function is realized.

Description

Agricultural methane tank with desilting function

Technical Field

The invention relates to the technical field of dredging of a methane tank, in particular to an agricultural methane tank with a dredging function.

Background

At present, biogas is widely used in China and even the world as an environment-friendly energy source, the slag discharge and dredging in the existing biogas pool generally adopts a manual mode, the manual discharge and dredging of biogas residues is easy to cause the biogas to be sucked into human bodies, the life health of people is influenced, the manual dredging is time-consuming and labor-consuming, in addition, the liquid level of the biogas pool is not stirred for a long time, the crusting condition is easy to occur, the gas production of the biogas pool is reduced, the biogas residue discharge and dredging device and the biogas stirring device are also generated at present, but the existing biogas residue discharge and dredging device and the biogas stirring device are two devices which are not related to each other, are arranged in the biogas pool, the occupied space is larger, and therefore, an agricultural biogas pool with the dredging function is provided.

Disclosure of Invention

The invention aims to provide an agricultural methane tank with a dredging function, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an agricultural methane-generating pit with desilting function, includes the cell body, the shape that the upper end of cell body was equipped with the back-off is hemispherical gas collecting channel, the middle part of gas collecting channel is equipped with the movable cover, the inside of cell body is equipped with the lifting pipe, the inside rotation of lifting pipe is connected with the connecting rod, just the connecting rod passes through motor drive and rotates, the lower extreme fixedly connected with of connecting rod is used for driving the turbine of marsh gas sediment at the inside rebound of lifting pipe, the lower extreme fixedly connected with of turbine is used for stirring the puddler of cell body bottom marsh gas sediment.

Preferably, the material lifting pipe comprises an upper pipe, a connecting pipe and a lower pipe, the upper pipe is fixedly connected to the movable cover, the upper end of the upper pipe penetrates through the side wall of the movable cover and extends to the outside of the movable cover, the connecting pipe is slidably sleeved inside the lower end of the upper pipe, the lower pipe passes through the support and is arranged inside the tank body, and the upper end of the lower pipe is movably connected with the lower end of the connecting pipe.

Preferably, one side of the upper end of the upper pipe is provided with a conveying pipe, and the conveying pipe is communicated with the upper pipe.

Preferably, the lower extreme both sides fixedly connected with otic placode of connecting pipe, all rotate on two otic placodes and be connected with the bolt that is used for driving the connecting pipe upwards or gliding downwards, bolt engagement connects on the lateral wall of removable cover.

Preferably, the connecting pipe is in a bell mouth shape and is hermetically connected with the upper pipe and the lower pipe.

Preferably, a feeding pipe is arranged on the side wall of the tank body, and the opening part of the feeding pipe is sealed by a sealing cover.

Preferably, the movable cover is provided with an air outlet pipe for discharging methane in the tank body.

Preferably, the outer side wall of the lower pipe is provided with an outer gear, the outer gear is sleeved with a gear sleeve through a planetary gear, the outer side wall of the gear sleeve is fixedly connected with a plurality of supporting rods in a circumferential array mode, and the lower ends of the supporting rods are fixedly connected to the stirring rod.

Preferably, the outer side wall of the lower pipe is fixedly connected with a material spreading cover for uniformly spreading biogas residues.

Preferably, a scraper is connected to the side wall of the supporting rod.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the bolt is rotated, so that the screw rod drives the connecting pipe to slide downwards, the connecting pipe communicates the upper pipe with the lower pipe, the motor is started, biogas residues at the bottom of the biogas digester can sequentially move into the conveying pipe along the lower pipe, the connecting pipe and the upper pipe, and the biogas residues are discharged through the conveying pipe;

2. according to the invention, the bolt is rotated, so that the screw rod drives the connecting pipe to slide upwards, then the connecting pipe is disconnected with the lower pipe, the motor is started, the raw material at the bottom of the methane tank is lifted upwards to the upper layer of the raw material along the lower pipe continuously, and then the stirring effect is achieved, and the phenomenon of crusting in the methane tank is avoided;

3. the biogas residue discharging and dredging device is combined with the biogas stirring device, so that the occupied space is small, and the space in the tank is saved.

Drawings

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

FIG. 2 is a cross-sectional view of the overall construction of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;

FIG. 4 is a schematic structural view of the movable cover, the bolt, the connecting pipe and the lower pipe of the present invention;

FIG. 5 is a schematic view I illustrating the operation of the upper tube, the connecting tube and the lower tube according to the present invention;

FIG. 6 is a schematic view of the working state of the upper tube, the connecting tube and the lower tube of the present invention;

FIG. 7 is a cross-sectional view of the upper tube, connecting tube and lower tube of the present invention;

FIG. 8 is an exploded view of the connection tube, lug plate and bolt of the present invention;

FIG. 9 is a schematic structural view of the lower tube, the stirring rod, the supporting rod and the material spreading cover of the present invention;

FIG. 10 is a cross-sectional view of the cell body, lower tube, agitator arm and support bar of the present invention;

fig. 11 is an enlarged view of fig. 10 at B according to the present invention.

In the figure: 1. cell body, 2, gas collecting channel, 3, movable cover, 4, lifting pipe, 401, top tube, 402, connecting pipe, 403, low tube, 5, conveying pipe, 6, connecting rod, 7, motor, 8, turbine, 9, puddler, 10, support, 11, otic placode, 12, bolt, 13, inlet pipe, 14, sealed lid, 15, outlet duct, 16, external gear, 17, planetary gear, 18, tooth cover, 19, branch, 20, spill cover, 21, spill mouth, 22, pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.

Referring to fig. 1-11, the present invention provides a technical solution: an agricultural biogas digester with a dredging function comprises a tank body 1, wherein an inverted hemispherical gas collecting hood 2 is arranged at the upper end of the tank body 1, as shown in figure 2, when biogas is generated inside the tank body 1, the biogas can float upwards to the inside of the gas collecting hood 2, a movable cover 3 is arranged at the middle part of the gas collecting hood 2, a material lifting pipe 4 is arranged inside the tank body 1, a connecting rod 6 is rotatably connected inside the material lifting pipe 4, the connecting rod 6 is driven to rotate by a motor 7, as shown in figure 1, the motor 7 is fixedly arranged on the movable cover 3, an output shaft of the motor 7 is fixedly connected with an output shaft of the connecting rod 6, when the motor 7 is started, the connecting rod 6 rotates along with the output shaft of the motor 7, a turbine 8 for driving biogas residues to move upwards inside the material lifting pipe 4 is fixedly connected at the lower end of the connecting rod 6, as shown in figure 2, the lower end of the material lifting pipe 4 is close to the bottom of the tank body 1, when the turbine 8 rotates, the turbine 8 can roll the biogas residues at the bottom of the tank body 1 into the material lifting pipe 4, so that the biogas residues are lifted upwards along the material lifting pipe 4, the lower end of the turbine 8 is fixedly connected with a stirring rod 9 for stirring biogas residues at the bottom of the tank body 1, when the stirring rod 9 rotates, the stirring rod 9 can stir up the biogas residues in the tank body 1, and as shown in figure 2, the bottom of the tank body 1 is in a conical shape, the bottom of the stirring rod 9 is tightly attached to the side wall of the bottom of the tank body 1, when the stirring rod 9 rotates, the residue crushed by the stirring rod 9 is gathered towards the middle part of the tank body 1 (the lower end of the material lifting pipe 4), so that the material lifting pipe 4 is convenient to lift, in addition, the lower end of the stirring rod 9 is provided with a nail tooth which can scrape off residues adhered to the side wall of the tank body 1, so that biogas residues can be cleaned more thoroughly.

Specifically, the material lifting pipe 4 comprises an upper pipe 401, a connecting pipe 402 and a lower pipe 403, the upper pipe 401 is fixedly connected to the movable cover 3, the upper end of the upper pipe 401 penetrates through the side wall of the movable cover 3 and extends to the outside of the movable cover, the connecting pipe 402 is slidably sleeved inside the lower end of the upper pipe 401, the lower pipe 403 is arranged inside the tank body 1 through a support 10, the support 10 is fixed at the connection position of the tank body 1 and the gas collecting hood 2 (as shown in fig. 2), the lower pipe 403 is fixed through the support 10, the axis of the lower pipe 403 and the axis of the upper pipe 401 (the connecting pipe 402) are kept on the same straight line, and the upper end of the lower pipe 403 is movably connected with the lower end;

as shown in fig. 5, when the inside of the tank body 1 needs to be desilted (biogas residue is cleaned), the connecting pipe 402 is moved downwards, so that the lower end of the connecting pipe 402 is connected with the upper port of the lower pipe 403, and the inside of the upper pipe 401, the connecting pipe 402 and the lower pipe 403 keeps a smooth passage, and at this time, when the motor 7 is started, biogas residues at the bottom of the tank body 1 are lifted upwards along the lower pipe 403, the connecting pipe 402 and the upper pipe 401 in sequence;

as shown in fig. 6, when the raw material of the tank body 1 needs to be stirred, the connecting pipe 402 is moved upwards, so that the lower end of the connecting pipe 402 is disconnected from the upper port of the lower pipe 403, at this time, when the motor 7 is started, the biogas residue at the bottom of the tank body 1 can be lifted upwards along the lower pipe 403, and is ejected out to the upper layer of the raw material from the upper port of the lower pipe 403, so that the raw material can be stirred to a certain extent, and the phase change of the mode promotes the height of part of the material by traditional stirring, so that the material falls into the bottom after being separated, thereby effectively improving the stirring effect.

Specifically, a conveying pipe 5 is arranged on one side of the upper end of the upper pipe 401, the conveying pipe 5 is communicated with the upper pipe 401, biogas residues lifted by the material lifting pipe 4 enter the conveying pipe 5, and the biogas residues are discharged outwards through the conveying pipe 5.

In order to facilitate the connection pipe 402 to slide upwards or downwards, specifically, two sides of the lower end of the connection pipe 402 are fixedly connected with lug plates 11, two lug plates 11 are rotatably connected with bolts 12 for driving the connection pipe 402 to slide upwards or downwards, the bolts 12 are engaged and connected to the side wall of the movable cover 3, as shown in fig. 8, the lower end of the bolt 12 is rotatably connected to the side wall of the lug plate 11, the upper end of the bolt 12 is in a hexagonal structure, the bolt 12 can be driven to rotate by a tool, when the bolt 12 is rotated, the bolt 12 moves upwards or downwards on the movable cover 3, and the lower end of the bolt 12 carries the lug plate 11 to move upwards or downwards, so as to drive the connection pipe 402 to move upwards or downwards.

When the insides of the upper tube 401, the connecting tube 402, and the lower tube 403 are kept in a smooth passage, in order to ensure that the joints of the upper tube 401, the connecting tube 402, and the lower tube 403 are in a closed state, and smooth material feeding is ensured, and when the lower end of the connecting tube 402 is disconnected from the upper end opening of the lower tube 403, biogas is not leaked from the upper tube 401, specifically, the connecting tube 402 is in a bell mouth form and is hermetically connected with the upper tube 401 and the lower tube 403, as shown in fig. 7, bell mouths are formed at both ends of the connecting tube 402, the upper end opening of the lower tube 402 is a cone mouth which is inwardly contracted, when the lower end of the connecting tube 402 is connected with the upper end opening of the lower tube 402, the inner wall of the bell mouth at the lower end of the connecting tube 402 is in fit and seal with the outer wall of the cone mouth at the upper end of the lower tube 402, and, The connection between the connection pipe 402 and the lower pipe 403 is in a closed state (as shown in fig. 5), and as shown in fig. 6, when the connection pipe 402 is disconnected from the lower pipe 403, the outer wall of the lower bell mouth of the connection pipe 402 is fitted and sealed with the contour of the lower mouth of the upper pipe 401 (the connection is provided with a sealing gasket seal), and the upper end of the connection pipe 402 is located above the connection between the transportation pipe 5 and the upper pipe 401 (the connection is also provided with a sealing gasket seal), so that the connection between the transportation pipe 5 and the upper pipe 401 can be blocked, and the leakage of biogas is avoided.

Specifically, a feeding pipe 13 is arranged on the side wall of the tank body 1, the mouth of the feeding pipe 13 is sealed by a sealing cover 14, as shown in fig. 1-2, the feeding pipe 13 is communicated with the tank body 1, when a raw material needs to be added into the tank body 1, the sealing cover 14 is opened, the raw material is poured into the feeding pipe 13, at this time, the raw material slides into the tank body 1 along the feeding pipe 13, and after the raw material is added, the mouth of the feeding pipe 13 is sealed by the sealing cover 14, so that biogas leakage is avoided.

Specifically, the movable cover 3 is provided with an air outlet pipe 15 for discharging biogas inside the tank body 1, as shown in fig. 2, the lower end of the air outlet pipe 15 is communicated with the inner cavity of the tank body 1, and the biogas inside the tank body 1 is conveyed to the outside of the tank body 1 through the air outlet pipe 15 and then utilized (the air outlet pipe 15 can be connected with an external gas storage tank, a pressure reducing valve, and the like to store and utilize the biogas).

As shown in fig. 9-11, in order to accelerate the lifting of the biogas residues inside the lower pipe 403, specifically, an external gear 16 is disposed on the outer side wall of the lower pipe 403, a gear sleeve 18 is sleeved on the external gear 16 through a planetary gear 17, the number of the planetary gears 17 is multiple, the upper ends of the planetary gears 17 are rotatably connected to the support 10, the planetary gears 17 are evenly distributed around the external gear 16, a baffle is fixedly connected to the support 10 above the external gear 16, the planetary gear 17 and the gear sleeve 18 and positioned above the support 10, the baffle is raised to prevent the biogas residues from entering the meshing position of the external gear 16, the planetary gear 17 and the gear sleeve 18 and affecting the operation of the external gear 16, the planetary gear 17 and the gear sleeve 18, a plurality of struts 19 are fixedly connected to the outer side wall of the gear sleeve 18 in a circumferential array, the lower ends of the struts 19 are fixedly connected to the stirring rod 9, and when the stirring rod 9 follows the connecting, When the turbine 8 rotates, the stirring rod 9 drives the toothed sleeve 18 to rotate through the supporting rod 19, and under the condition, the rotation of the toothed sleeve 18 drives the outer gear 16 to rotate reversely through the planetary gear 17, namely the lower pipe 403 rotates along with the outer gear 16, the lower pipe 403 and the turbine 8 rotate reversely, and under the condition, the lifting speed of biogas residues can be accelerated, the lifting of the biogas residues inside the lower pipe 403 is facilitated, and then the stirring or discharging of the biogas residues is facilitated.

Since the biogas residues are lifted by the turbine 8, after the biogas residues come out of the lower pipe 403, the biogas residues are squeezed and pushed and fall down along the lower pipe 403, and the biogas residues fall down and are easily accumulated at the center of the bottom, so that the stirring and turning effects are reduced, when the biogas residues are stirred, in order to uniformly spread the biogas residues lifted by the lower pipe 403 on the upper layer of the biogas residues, specifically, a spreading cover 20 for uniformly spreading the biogas residues is fixedly connected to the outer side wall of the lower pipe 403, and as shown in fig. 9, the spreading cover 20 is in the shape of an unfolded umbrella, and the biogas residues lifted by the turbine 8 can be uniformly distributed through the spreading cover 20. In order to make the scattering more uniform, a spiral scattering opening 21 is formed on the scattering cover 20, when stirring the biogas residues, the lower pipe 403 lifts the biogas residues at the lower layer, and the lifted biogas residues are sprayed onto the scattering cover 20 from the upper end of the lower pipe 403, and then the biogas residues falling on the scattering cover 20 are scattered onto the upper layer of the biogas residues from the scattering opening 21, because the scattering opening 21 is spiral and the scattering cover 20 rotates along with the lower pipe 403, so the biogas residues are uniformly scattered onto the upper layer of the biogas residues, and the stirring is more uniform, the scattering cover 20 is provided with a plurality of blocking rods 22 separating the scattering opening 21, as shown in fig. 9, and the blocking rods 22 are uniformly arranged on the upper side surface of the scattering cover 20 (similar to the supporting framework of an umbrella), so that the biogas residues sprayed onto the scattering cover 20 are uniformly spaced, and the biogas residues are prevented from being accumulated on one side of the scattering cover 20 when the scattering cover 20 rotates, the arrangement ensures that the slag materials which are turned over fall between the two stop rods 22 and then fall off from the two stop rods, thereby preventing the slag materials from being intensively scattered at a certain position above the spreading cover 20 due to the lifting and spraying of turning over, and further ensuring the uniformity of spreading materials.

Furthermore, in order to turn over and reduce the incrustation on the inner wall of the tank body 1, a scraper (not shown in the figure) attached to the inner wall of the tank body 1 is connected to the side wall of the supporting rod 19, and the scraper scrapes off attached slag in the rotating process of the supporting rod 19.

The working principle is as follows: when the device is used, the sealing cover 14 is opened, raw materials (straws, excrement and the like) are added into the tank body 1 through the feeding pipe 13, then the sealing cover 14 is covered inside the feeding pipe 13, the raw materials are fermented inside the tank body 1 to generate biogas, the biogas generated in the way is upwards arranged inside the gas collecting hood 2 and is conveyed to the outside of the tank body 1 through the gas outlet pipe 15 for utilization (for example, the biogas is utilized and combusted by a biogas stove), when the raw materials inside the tank body 1 need to be stirred, the bolt 12 is rotated to drive the connecting pipe 402 to upwards move, so that the lower end of the connecting pipe 402 is separated from the lower pipe 403 (as shown in figures 4 and 6), the motor 7 is started, the motor 7 drives the connecting rod 6, the turbine 8 and the stirring rod 9 to rotate, the raw materials at the bottom of the tank body 1 are crushed after the stirring rod 9 rotates, and the turbine 8 lifts the raw materials at the bottom of the tank, finally, the raw materials are discharged to the upper layer of the raw materials in the tank body 1 from the upper port part of the lower pipe 403, so that the raw materials are stirred, raw material crusting is avoided, and the gas production rate is improved; after the raw materials in the tank body 1 are fermented for a certain time, biogas residues are generated at the bottom of the tank body 1, the tank body 1 needs to be subjected to slag removal and desilting treatment, the bolt 12 is rotated to drive the connecting pipe 402 to move downwards by the bolt 12, so that the upper pipe 401 is communicated with the lower pipe 403 by the connecting pipe 402, the motor 7 is started, and thus, residues at the bottom of the tank body 1 are lifted into the conveying pipe 5 along the lower pipe 403, the connecting pipe 402 and the upper pipe 401 in sequence by the turbine 8 and are discharged through the conveying pipe 5.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an agricultural methane-generating pit with desilting function, includes cell body (1), its characterized in that: the methane tank is characterized in that the upper end of the tank body (1) is provided with an inverted gas collecting hood (2) which is hemispherical, the middle part of the gas collecting hood (2) is provided with a movable cover (3), a material lifting pipe (4) is arranged in the tank body (1), a connecting rod (6) is rotatably connected in the material lifting pipe (4), the connecting rod (6) is driven to rotate by a motor (7), the lower end of the connecting rod (6) is fixedly connected with a turbine (8) which is used for driving methane slag to move upwards in the material lifting pipe (4), the lower end of the turbine (8) is fixedly connected with a stirring rod (9) which is used for stirring the methane slag at the bottom of the tank body (1), the material lifting pipe (4) comprises an upper pipe (401), a connecting pipe (402) and a lower pipe (403), the upper pipe (401) is fixedly connected on the movable cover (3), the upper end of the upper pipe (401) penetrates through the side wall of the movable, the connecting pipe (402) is sleeved inside the lower end of the upper pipe (401) in a sliding manner, the lower pipe (403) is arranged inside the tank body (1) through a support (10), and the upper end of the lower pipe (403) is movably connected with the lower end of the connecting pipe (402);

the outer side wall of the lower pipe (403) is provided with an outer gear (16), the outer gear (16) is sleeved with a gear sleeve (18) through a planetary gear (17), the outer side wall of the gear sleeve (18) is fixedly connected with a plurality of supporting rods (19) in a circumferential array mode, and the lower ends of the supporting rods (19) are fixedly connected to the stirring rod (9);

the two sides of the lower end of the connecting pipe (402) are fixedly connected with lug plates (11), the two lug plates (11) are respectively and rotatably connected with a bolt (12) used for driving the connecting pipe (402) to slide upwards or downwards, and the bolts (12) are meshed and connected to the side wall of the movable cover (3);

a conveying pipe (5) is arranged on one side of the upper end of the upper pipe (401), and the conveying pipe (5) is communicated with the upper pipe (401);

the connecting pipe (402) is in sealing connection with the upper pipe (401) and the lower pipe (403) in a horn mouth mode;

the two ends of the connecting pipe (402) are both provided with bell mouths, the upper end opening part of the lower pipe (403) is a conical opening which shrinks inwards, when the lower end of the connecting pipe (402) is connected with the upper end opening part of the lower pipe (403), the inner wall of the bell mouth at the lower end of the connecting pipe (402) is attached and sealed with the outer wall of the conical opening at the upper end of the lower pipe (403), in this state, the outer wall of the bell mouth at the upper end of the connecting pipe (402) is attached and sealed with the conical wall additionally arranged on the inner side of the upper pipe (401), and then the connection parts of the upper pipe (401), the connecting pipe (402) and the;

when the connecting pipe (402) is disconnected from the lower pipe (403), the outer wall of the lower end bell mouth of the connecting pipe (402) is fit and sealed with the outline of the lower end opening of the upper pipe, and the upper end of the connecting pipe (402) is positioned above the joint of the conveying pipe (5) and the upper pipe (401), so that the joint of the conveying pipe (5) and the upper pipe (401) can be blocked.

2. The agricultural methane tank with the dredging function of claim 1, wherein: the feeding device is characterized in that a feeding pipe (13) is arranged on the side wall of the tank body (1), and the opening part of the feeding pipe (13) is sealed through a sealing cover (14).

3. The agricultural methane tank with the dredging function of claim 1, wherein: the movable cover (3) is provided with an air outlet pipe (15) for discharging the methane in the tank body (1).

4. The agricultural methane tank with the dredging function of claim 1, wherein: and a material spreading cover (20) for uniformly spreading biogas residues is fixedly connected to the outer side wall of the lower pipe (403).

5. The agricultural methane tank with the dredging function of claim 1, wherein: the side wall of the support rod (19) is connected with a scraper.