CN112375664A

CN112375664A - CO (carbon monoxide)2Straw gas fertilizer reaction tank

Info

Publication number: CN112375664A
Application number: CN202011260796.6A
Authority: CN
Inventors: 胡洋; 胡德鸿
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-02-19

Abstract

The invention belongs to the technical field of straw recycling, and particularly relates to CO₂The straw gas fertilizer reaction tank comprises a tank body, a feeding pipe and a discharging pipe; the tank body is a cylindrical cavity type structure body; according to the invention, the air pressure in the fermentation cavity, the buffer cavity and the air storage bag is reduced one by one, the air pressure in the buffer cavity is increased to extrude the water flow in the diversion trench, so that the water flow enters the air storage bag along the first through groove, after the water flow completely enters the air storage bag, the air storage bag is communicated with the buffer cavity, so that methane in the buffer cavity flows into the air outlet bag, after the air pressure is balanced, the water flow is converged in the first through groove again under the action of gravity, and water drops condensed on the buffer cavity serve as the diversion trench on the diversion ringThe continuous supplementary rivers can make the rivers in the dashpot keep certain water level, and the in-process that marsh gas was boosted in the buffer chamber also makes inside steam of containing separate out gradually simultaneously, and then makes the marsh gas water content of carrying to the gas storage bag further reduce.

Description

CO (carbon monoxide)2Straw gas fertilizer reaction tank

Technical Field

The invention belongs to the technical field of straw recycling, and particularly relates to CO₂Straw air fertilizer reaction tank.

Background

In the prior art, the straws account for a large proportion of the filling raw materials in the gas fertilizer reaction tank in the agricultural ecology, the straws are easy to float and gather on the upper layer of biogas slurry in the gas fertilizer reaction tank due to small density and light weight, the straws floating on the upper layer are difficult to decompose in the continuous fermentation process, the straws are dried and shrunk due to the baking and dehydration of the fermentation heat in the floating process, meanwhile, organic acid in the biogas fermentation process is gradually accumulated on the straws, so that the straws are mutually connected, a crust layer is further formed on the upper part of the biogas slurry, the existence of the crust layer not only directly generates a barrier effect on the rising of the biogas, so that the biogas cannot be discharged upwards in time, but also enables a large amount of carbon dioxide and hydrogen sulfide gas in the biogas to be dissolved in the biogas slurry, so that the pH value of the biogas slurry is reduced, further the fermentation reaction rate is reduced, and further the biogas production efficiency is reduced, in the prior art, most of the crust layers are broken by adopting a mechanical structure or an inflation crust breaking method in order to improve the existence of the crust layers, but both the two methods need manual active operation, so that the labor amount of manual work is increased, a certain time limit exists in both the two methods, the gas production efficiency is still inhibited to a certain extent, and the additional energy output required by an external power source is increased.

In view of this, the invention develops CO₂A straw gas fertilizer reaction tank is used for solving the technical problems.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that scum formed by straw materials in a gas fertilizer reaction tank in the prior art is easy to form a crust layer on the biogas slurry and prevents the gas production of the gas fertilizer reaction tank, the invention provides CO₂Straw air fertilizer reaction tank.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a gas fertilizer reaction tank suitable for agricultural ecology, which comprises a tank body, a feeding pipe and a discharging pipe; the tank body is a cylindrical cavity type structure body; a partition plate is fixedly connected in the cavity of the tank body; the inner cavity of the tank body is divided into a fermentation cavity and a buffer cavity by the partition plate; in the initial state, a certain amount of aqueous solution exists in the buffer cavity; the feed pipe is fixedly connected with the side wall of one side of the tank body; the feeding pipe is obliquely designed relative to the outer wall of the tank body; the discharge pipe is fixedly connected to one side of the tank body, which is far away from the feed pipe; the discharge pipe is designed in an L shape; the feeding pipe and the discharging pipe are communicated with the fermentation cavity; the baffle plate is fixedly connected with air guide pipes which are uniformly distributed; two ends of the air duct respectively extend into the fermentation cavity and the buffer cavity; the air duct is positioned at one end in the buffer cavity and is in an inverted U-shaped design; a guide pipe is fixedly connected above the tank body; the guide pipe is internally and fixedly connected with an annular plate; the upper surface of the annular plate is fixedly connected with an air storage bag; one side of the gas storage bag, which is far away from the tank body, is fixedly connected with a gravity plate; the air storage bag is in a corrugated design; the gas storage bag is used for storing methane; one side of the tank body, which is close to the guide pipe, is provided with first through grooves which are uniformly distributed; the first through groove is designed to communicate the air storage bag with the buffer cavity; the baffle plate is positioned in the buffer cavity and fixedly connected with a guide plate; the guide plate is in a cross-shaped design; the air guide pipes are all positioned in the guide plate gap; the partition plate is provided with first sliding chutes which are uniformly distributed; the first sliding chute corresponds to the guide plate in clearance and is close to the guide plate; a sliding column is connected in the first sliding chute in a sliding manner; two ends of the sliding column respectively extend into the fermentation cavity and the buffer cavity; the sliding column is positioned in the buffer cavity and fixedly connected with a sliding plate; an arc-shaped groove is formed in one side, close to the partition plate, of the sliding plate; the sliding column is positioned in the fermentation cavity and fixedly connected with a plurality of moving rods; the plurality of moving rods are arranged in a radial shape; the movable rods are all designed to be inclined downwards by taking the sliding column as a center; the movable rods are provided with movable plates; the moving plates are all obliquely arranged along the circumferential direction;

a floating ring is connected in the fermentation cavity in a floating manner; the inner wall of the floating ring is provided with a second sliding chute; an auxiliary plate is arranged on the inner wall of the floating ring; the auxiliary plate extends into the second chute and is connected with the floating ring in a sliding manner through the second chute; one ends of the auxiliary plates, which are positioned in the second sliding grooves, are connected with each other through springs;

the buffer cavity is positioned above the guide plate and fixedly connected with a flow guide ring; the guide ring is provided with a guide groove; the first through grooves extend into the diversion ring and are designed to be opened at the bottom of the diversion groove; the first through groove and the diversion groove form a U-shaped structure; the cell body and the buffer cavity are close to the design of the equal arc on one side of the guide pipe and the design of the guide pipe is kept away from the arc opening.

Preferably, the inner wall of the guide pipe is provided with third sliding chutes which are uniformly distributed; the gravity plate extends into the third chute; and a second through groove is formed in one end, located in the third sliding groove, of the gravity plate.

Preferably, an extension bag is fixedly connected in the second through groove; the extension bag is made of an extensible film material; the extension bag is filled with water in an initial state; the gravity plate is positioned between the air storage bag and the guide pipe and is fixedly connected with a test pipe; the test tube extends into the extension bag.

Preferably, the side of the partition board close to the fermentation cavity is fixedly connected with supporting pipes which are uniformly distributed; the supporting tube is provided with fourth sliding chutes which are uniformly distributed; the sliding column extends into the support tube interior.

Preferably, one side of the movable rod, which is close to the support tube, is fixedly connected with a connecting ring; the connecting ring is connected to the outer wall of the supporting pipe in a sliding manner; the fourth chute is internally and slidably connected with a pore plate; the surface of the pore plate is provided with limit holes which are uniformly distributed; a hinged plate is connected in the limiting hole in a sliding manner; the hinged plate extends into the supporting tube and is hinged with the sliding column; the moving plate is made of water-floating materials.

Preferably, the moving plate is provided with a rotating groove; the moving plate is rotationally connected with the moving rod through a rotating groove; a third through groove is formed in the movable rod; limiting teeth are elastically connected in the third through groove through springs; the limiting teeth extend to the bottom of the connecting ring; tooth sockets which are uniformly distributed are formed on the surface of the rotating groove; the limiting teeth are matched with the tooth grooves.

The invention has the following beneficial effects:

1. the invention relates to CO₂The straw gas fertilizer reaction tank is provided with the buffer cavity and the gas guide pipe, utilizes the upward floating effect of the methane in the water solution, further assembles the methane, takes the assembled methane as power, moves the sliding plate in a sliding seal manner in the gap of the guide plate under the action of continuously increased air pressure, and drives the moving plate and the moving rod in the fermentation cavity to move upwards by utilizing the movement of the sliding plateThe lower motion, and then produce stirring effect to the natural pond liquid in the fermentation chamber and dross, and then make dross and natural pond liquid area of contact each other increase, make the dross form the degree of difficulty increase of knot shell layer, reduce effectively that the knot shell layer is to the influence of gas fertilizer reaction tank gas production, the effect that can also play the heat-proof simultaneously of buffering intracavity rivers, when ambient temperature is lower, the buffer layer can also produce isolated effect to cold air effectively, and then makes the fermentation intracavity keep higher temperature, the going on of the fermentation reaction of being convenient for.

2. The invention relates to CO₂Straw gas fertilizer reaction tank, through making the fermentation chamber, atmospheric pressure in cushion chamber and the gas storage bag reduces one by one, the atmospheric pressure increase of cushion chamber forms the extrusion to the rivers in the guiding gutter, and then make rivers along first logical groove get into in the gas storage bag, switch on between gas storage bag and the cushion chamber after rivers get into the gas storage bag completely, and then make the marsh gas in the cushion chamber flow to the gas storage bag, and after atmospheric pressure is balanced, rivers assemble under the effect of gravity again in first logical groove, continuous supplementary rivers of guiding gutter on the water conservancy diversion ring through the water droplet that condenses on the cushion chamber, can make the rivers in the cushion chamber keep certain water level, marsh gas also makes the inside steam that contains to appear gradually at the in-process that steps up of buffer chamber simultaneously, and then make the marsh gas water content of carrying to in the gas storage bag further reduce.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is an enlarged view of a portion of FIG. 3 at C;

in the figure: the fermentation tank comprises a tank body 1, a feeding pipe 11, a discharging pipe 12, a partition plate 13, a fermentation cavity 14, a buffer cavity 2, an air guide pipe 21, a guide plate 22, a first sliding groove 23, a sliding column 24, a sliding plate 25, a guide pipe 3, an annular plate 31, an air storage bag 32, a gravity plate 33, a first through groove 34, a moving rod 4, a moving plate 41, a support pipe 42, a fourth sliding groove 43, a connecting ring 44, an orifice plate 45, a limiting hole 46, a hinge plate 47, a floating ring 5, a second sliding groove 51, an auxiliary plate 52, a guide ring 6, a guide groove 61, a third sliding groove 7, a second through groove 71, an extension bag 72, a test pipe 73, a rotating groove 8, a third through groove 81, limiting teeth 82 and tooth grooves 83.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in FIGS. 1 to 5, a CO according to the present invention₂The straw gas fertilizer reaction tank comprises a tank body 1, a feeding pipe 11 and a discharging pipe 12; the tank body 1 is a cylindrical cavity type structure body; a partition plate 13 is fixedly connected in the cavity of the tank body 1; the inner cavity of the tank body 1 is divided into a fermentation cavity 14 and a buffer cavity 2 by the clapboard 13; in the initial state, a certain amount of aqueous solution exists in the buffer cavity 2; the feed pipe 11 is fixedly connected with the side wall of one side of the tank body 1; the feeding pipe 11 is obliquely designed relative to the outer wall of the tank body 1; the discharge pipe 12 is fixedly connected with one side of the tank body 1 far away from the feed pipe 11; the discharge pipe is designed in an L shape 12; the feeding pipe 11 and the discharging pipe 12 are communicated with the fermentation cavity 14; the baffle plate 13 is fixedly connected with air guide pipes 21 which are uniformly distributed; two ends of the air duct 21 respectively extend into the fermentation cavity 14 and the buffer cavity 2; one end of the air duct 21, which is positioned in the buffer cavity 2, is designed in an inverted U shape; a guide pipe 3 is fixedly connected above the tank body 1; the guide pipe 3 is fixedly connected with an annular plate 31; the upper surface of the annular plate 31 is fixedly connected with an air storage bag 32; a gravity plate 33 is fixedly connected to one side of the gas storage bag 32, which is far away from the tank body 1; the gas storage bag 32 is of a corrugated design; the gas storage bag 32 is used for storing methane; one side of the tank body 1 close to the guide pipe 3 is provided with first through grooves 34 which are uniformly distributed; the first through groove 34 is designed to communicate the air storage bag 32 with the buffer cavity 2; the partition plate 13 is positioned in the buffer cavity 2 and fixedly connected with a guide plate 22; the guide plate 22 is in a cross-shaped design; the air ducts 21 are all positioned in the gaps of the guide plates 22; the partition plate 13 is provided with first sliding chutes 23 which are uniformly distributed; the first sliding chute 23 corresponds to the guide plate 22 in a clearance manner and is close to the guide plate 22; a sliding column 24 is connected in the first sliding chute 23 in a sliding manner;two ends of the sliding column 24 respectively extend into the fermentation cavity 14 and the buffer cavity 2; the sliding column 24 is positioned in the buffer cavity 2 and fixedly connected with a sliding plate 25; an arc-shaped groove is formed in one side, close to the partition plate 13, of the sliding plate 25; the sliding column 24 is positioned in the fermentation cavity 14 and fixedly connected with a plurality of moving rods 4; the plurality of moving rods 4 are arranged in a radial shape; the moving rods 4 are all designed to be inclined downwards by taking the sliding column 24 as a center; the moving plates 41 are arranged on the moving rods 4; the moving plates 41 are all arranged in an inclined mode along the circumferential direction;

in the prior art, the straws account for a large proportion of the filling raw materials in the gas fertilizer reaction tank in the agricultural ecology, the straws are easy to float and gather on the upper layer of biogas slurry in the gas fertilizer reaction tank due to small density and light weight, the straws floating on the upper layer are difficult to decompose in the continuous fermentation process, the straws are dried and shrunk due to the baking and dehydration of the fermentation heat in the floating process, meanwhile, organic acid in the biogas fermentation process is gradually accumulated on the straws, so that the straws are mutually connected, a crust layer is further formed on the upper part of the biogas slurry, the existence of the crust layer not only directly generates a barrier effect on the rising of the biogas, so that the biogas cannot be discharged upwards in time, but also enables a large amount of carbon dioxide and hydrogen sulfide gas in the biogas to be dissolved in the biogas slurry, so that the pH value of the biogas slurry is reduced, further the fermentation reaction rate is reduced, and further the biogas production efficiency is reduced, in the prior art, most of the crust layers are broken by adopting a mechanical structure or an inflation crust breaking method in order to improve the existence of the crust layers, but the two methods both need manual active operation, not only the labor amount of the manual operation is increased, but also a certain time limit exists in the two methods, and the gas production efficiency is also inhibited to a certain extent The water vapor and the biogas form bubbles in the aqueous solution in the buffer cavity 2 through the gas guide tube 21, the water vapor is gradually dissolved in the aqueous solution, the biogas floats upwards in the form of bubbles and gradually gathers in the arc-shaped groove on the lower surface of the sliding plate 25, the biogas gradually accumulates along with the biogas in the arc-shaped groove, so that the sliding plate 25 and the sliding column 24 rise upwards in the gap of the guide plate 22, the sliding column 24 drives the moving rod 4 in the fermentation cavity 14 to move upwards in the rising process, and then the moving plate 41 rises, when the sliding plate 25 is separated from the guide plate 22, the gas gathered in the arc-shaped groove impacts the buffer cavity 2, so that the sliding plate 25 loses the buoyancy effect, the sliding plate 25 falls downwards under the action of gravity, and the moving rod 4 and the moving plate 41 connected with the sliding column 24 both fall downwards, so that the biogas slurry is impacted in the process of the up-and-down movement of the moving plate 41 and the moving rod 4, further stirring the biogas residues floating on the surface of the biogas slurry, crushing the adhered biogas residues on one hand, contacting the biogas residues with the biogas slurry, further depositing part of the biogas residues downwards, collecting the biogas in the buffer cavity 2 into the gas storage bag 32 gradually through the first through groove 34, pushing the gravity plate 33 to move upwards in the guide pipe 3 after the gas pressure is increased, utilizing the upward floating function of the biogas in the aqueous solution through arranging the buffer cavity 2 and the gas guide pipe 21, further collecting the biogas, using the collected biogas as power, moving the sliding plate 25 in sliding seal in the gap of the guide plate 22 under the action of the continuously increased gas pressure, driving the moving plate 41 and the moving rod 4 in the fermentation cavity 14 to move up and down by the movement of the sliding plate 25, further stirring the biogas slurry and scum in the fermentation cavity 14, further increasing the contact area of the biogas slurry and scum, the difficulty of forming crusting layers on the scum is increased, the influence of the crusting layers on gas production of the gas fertilizer reaction tank is effectively reduced, meanwhile, water flow in the buffer cavity 2 can also play a role in heat insulation, and when the external temperature is low, the buffer layer can also effectively insulate cold air, so that the fermentation cavity 14 is kept at a high temperature, and fermentation reaction is facilitated;

a floating ring 5 is connected in the fermentation cavity 14 in a floating manner; a second sliding groove 51 is formed in the inner wall of the floating ring 5; an auxiliary plate 52 is arranged on the inner wall of the floating ring 5; the auxiliary plate 52 extends into the second sliding groove 51 and is connected with the floating ring 5 in a sliding manner through the second sliding groove 51; the auxiliary plates 52 are positioned in the second sliding grooves 51, and one ends of the auxiliary plates are connected with each other through springs;

when the device works, the movable rod 4 and the movable plate 41 are gradually lifted upwards under the action of the sliding column 24, the movable plate 41 is obliquely arranged relative to the movable rod 4, the movable plate 41 plays a role in lifting biogas slurry in the lifting process, meanwhile, the movable plate 41 can also utilize the oblique angle to push the auxiliary plate 52 on the floating ring 5 floating on the biogas slurry in the lifting process, so that the auxiliary plate 52 is extruded and slid in the second chute 51, the auxiliary plate 52 rotates in the second chute 51, the floating slag floating on the biogas slurry is pushed in the rotating process of the auxiliary plate 52, the stirring effect on the floating slag is further effectively enhanced, the floating slag floating on the biogas slurry is stressed to be broken and float, and the floating slag is effectively prevented from being adhered to each other to form a shell layer;

the buffer cavity 2 is fixedly connected with a flow guide ring 6 above the guide plate 22; the guide ring 6 is provided with a guide groove 61; the first through grooves 34 extend into the guide ring 6 and are designed to be opened at the bottom of the guide groove 61; the first through groove 34 and the diversion groove 61 form a U-shaped structure; the pool body 1 and one side of the buffer cavity 2 close to the guide pipe 3 are both designed in an arc shape, and the arc-shaped opening is far away from the guide pipe 3;

when the biogas digester works, part of vapor contained in biogas entering the buffer cavity 2 is gradually condensed on the inner wall of the buffer cavity 2, the air pressure in the buffer cavity 2 is gradually increased along with the increase of the gas content, the air pressure in the fermentation cavity 14, the buffer cavity 2 and the gas storage bag 32 is gradually reduced, the increase of the air pressure in the buffer cavity 2 extrudes the water flow in the diversion trench 61, the water flow enters the gas storage bag 32 along the first through groove 34, the gas storage bag 32 is communicated with the buffer cavity 2 after the water flow completely enters the gas storage bag 32, so that the biogas in the buffer cavity 2 flows into the gas storage bag, the water flow is converged in the first through groove 34 again under the action of gravity after the air pressure is balanced, the water flow is continuously supplemented to the diversion trench 61 on the diversion ring 6 through water drops condensed on the buffer cavity 2, the water flow in the buffer cavity can be kept at a certain water level, and meanwhile, the vapor contained in the interior of the biogas digester is gradually separated out in the process of boosting in the buffer cavity 2, further, the moisture content of the biogas conveyed to the gas storage bag 32 is further reduced, and meanwhile, due to the design of incomplete conduction between the buffer cavity 2 and the gas storage bag 32, the air pressure in the buffer cavity 2 can be effectively changed greatly, water flow condensed in the buffer cavity 2 can be effectively pressed back to the fermentation cavity 14, and the up-and-down movement of the sliding plate 25 in the guide plate 22 is facilitated.

As an embodiment of the present invention, the inner wall of the guide tube 3 is provided with third sliding chutes 7 which are uniformly distributed; the gravity plate 33 extends into the third chute 7; a second through groove 71 is formed in one end, located in the third sliding groove 7, of the gravity plate 33; an extension bag 72 is fixedly connected in the second through groove 71; the extension bag 72 is made of an extensible film material; in the initial state, the extension bag 72 is filled with water; the gravity plate 33 is positioned between the air storage bag 32 and the guide tube 3 and fixedly connected with a test tube 73; the test tube 73 extends into the extension bag 72;

when the biogas digester works, biogas enters the gas storage bag 32, so that the gas storage bag 32 jacks up the gravity plate 33, the gravity plate 33 enables the extension bag 72 to be separated from the bottom of the third chute 7 in the upward moving process, the extension bag 72 further enables the extension bag 72 to expand downwards under the action of the gravity of the internal water flow and cling to the inner wall of the third chute 7, the sealing performance of a gap between the gravity plate 33 and the gas storage bag 32 is effectively enhanced, when the gas storage bag 32 is broken, the biogas enters the gap between the gas storage bag 32 and the guide pipe 3, the gas has the characteristic of outward movement, and further along with the gradual leakage of the biogas, the biogas is conveyed to the interior of the extension bag 72 along the test pipe 73, so that the biogas is discharged outwards after water flow filtration, on one hand, the hydrogen sulfide gas contained in the biogas is dissolved in water after water flow filtration, so that the toxicity of the leaked biogas is reduced, and meanwhile, the biogas forms continuous bubbles in the water solution of the extension bag 72, can effectively generate the early warning function.

As an embodiment of the invention, the side of the partition board 13 close to the fermentation chamber 14 is fixedly connected with evenly distributed support pipes 42; the supporting tube 42 is provided with fourth sliding chutes 43 which are uniformly distributed; the sliding column 24 extends to the inside of the support tube 42; a connecting ring 44 is fixedly connected to one side of the movable rod 4 close to the supporting tube 42; the connecting ring 44 is slidably connected to the outer wall of the supporting tube 42; an orifice plate 45 is connected in the fourth sliding chute 43 in a sliding manner; the surface of the pore plate 45 is provided with limit holes 46 which are uniformly distributed; a hinge plate 47 is connected in the limiting hole 46 in a sliding manner; the hinge plate 47 extends to the interior of the support tube 42 and is hinged with the sliding column 24; the moving plate 41 is made of a water-floating material;

when the biogas slurry breaking device works, the sliding plate 25 and the sliding column 24 drive the hinged plate 47 to move upwards in the upward movement process, the hinged plate 47 is gradually moved outwards of the limiting hole 46 under the limiting effect of the limiting hole 46 until the hinged plate 47 is perpendicular to the pore plate 45, at the moment, the pore plate 45 is driven to synchronously slide in the fourth sliding groove 43 under the effect of the hinged plate 47 along with the continuous rising of the sliding column 24, the hinged plate 47 extending to the outside is contacted with the connecting ring 44, so that the upward moving sliding column 24 drives the moving rod 4 and the moving plate 41 to move upwards, scum on the upper layer of biogas slurry is conveniently broken and dispersed, when the sliding column 24 does not move upwards, the sliding column 24 and the pore plate 45 both fall on the bottom of the fourth sliding groove 43, and further a height difference is formed between the hinged plate 47 hinged on the sliding column 24 and the pore plate 45, and further the hinged plate 47 and the pore plate 45 are inclined, so that the, the hinge plate 47 does not influence the up-and-down sliding of the connecting ring 44, so that the connecting ring 44, the moving rod 4 and the moving plate 41 can effectively and always float on the surface layer of the biogas slurry, and the moving rod 4 and the moving plate 41 can conveniently break scum floating on the biogas slurry.

As an embodiment of the present invention, the moving plate 41 is provided with a rotating groove 8; the moving plate 41 is rotatably connected with the moving rod 4 through a rotating groove 8; a third through groove 81 is formed in the movable rod 4; a limiting tooth 82 is elastically connected in the third through groove 81 through a spring; the limiting teeth 82 extend to the bottom of the connecting ring 44; tooth sockets 83 which are uniformly distributed are formed on the surface of the rotating groove 8; the limiting teeth 82 are matched with the tooth grooves 83;

during operation, the hinge plate 47 gradually extends out under the action of the limiting hole 46 on the pore plate 45, upward thrust is formed on the limiting teeth 82 in the rising process, the limiting teeth 82 move upwards in the third through groove 81, the limiting teeth 82 are separated from the third through groove 81 and extend into the tooth grooves 83, the movable plate 41 and the movable rod 4 under the buoyancy action of biogas slurry are fixed, the limiting teeth 82 are separated from the hinge plate 47 in the downward falling process of the sliding column 24, the limiting teeth 82 shrink in the third through groove 81 under the action of gravity, the movable plate 41 on the movable rod 4 is perpendicular to the liquid level of the biogas slurry under the action of gravity, the downward falling movable plate 41 can easily enter the biogas slurry, meanwhile, the shearing force of the falling movable plate 41 on the biogas slurry is increased, and the adhered scum is effectively crushed.

The specific working process is as follows:

when the device works, fermentation raw materials such as straws are input into the fermentation cavity 14 through the feed pipe 11, the fermentation raw materials are accumulated in the fermentation cavity 14, fermentation reaction is gradually generated under the action of fermentation strains, the temperature in the fermentation cavity 14 is raised, and along with the generation of biogas, moisture in the raw materials begins to evaporate due to the temperature rise, the mixed biogas rises upwards under the rising action, so that the biogas mixed with vapor floats above a fermentation product, the air pressure in the fermentation cavity 14 is gradually increased along with the continuous fermentation reaction, so that the biogas mixed with the vapor enters the buffer cavity 2 through the air duct 21 under the action of increased air pressure, the vapor and the biogas form bubbles in the aqueous solution in the buffer cavity 2 through the air duct 21, the vapor is gradually dissolved in the aqueous solution, the biogas floats upwards in the form of bubbles and gradually gathers in the arc-shaped groove on the lower surface of the sliding plate 25, along with the gradual accumulation of biogas in the arc-shaped groove, the sliding plate 25 and the sliding column 24 rise upwards in the gap of the guide plate 22, the sliding column 24 drives the moving rod 4 in the fermentation chamber 14 to move upwards in the rising process, and then drives the moving plate 41 to rise, when the sliding plate 25 is separated from the guide plate 22, the gas gathered in the arc-shaped groove impacts the buffer chamber 2, so that the sliding plate 25 loses buoyancy, the sliding plate 25 falls downwards under the action of gravity, the moving plate 41 and the moving rod 4 connected to the sliding column 24 fall downwards, and further the biogas slurry is impacted in the process of the vertical movement of the moving plate 41 and the moving rod 4, so that biogas residues floating on the surface of the biogas slurry are stirred, and on the one hand, sticky biogas residues are crushed, and simultaneously, the biogas residues are contacted with the biogas slurry, and further part of the biogas residues are deposited downwards, the methane in the buffer chamber 2 gradually gathers into the gas storage bag 32 through the first through groove 34, and pushes the gravity plate 33 to move upwards in the guide pipe 3 after the air pressure is increased.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. CO (carbon monoxide)₂Straw air fertilizer reaction tank, its characterized in that: comprises a tank body (1), a feeding pipe (11) and a discharging pipe (12); the tank body (1) is a cylindrical cavity type structure body; a clapboard (13) is fixedly connected in the cavity of the tank body (1); the inner cavity of the tank body (1) is divided into a fermentation cavity (14) and a buffer cavity (2) by the clapboard (13); a certain aqueous solution exists in the buffer cavity (2) in an initial state; the feed pipe (11) is fixedly connected with the side wall of one side of the tank body (1); the feeding pipe (11) is obliquely designed relative to the outer wall of the tank body (1); the discharge pipe (12) is fixedly connected with one side of the tank body (1) far away from the feed pipe (11); the discharge pipe (12) is of an L-shaped design; the feeding pipe (11) and the discharging pipe (12) are communicated with the fermentation cavity (14); the baffle plate (13) is fixedly connected with air guide pipes (21) which are uniformly distributed; two ends of the air duct (21) respectively extend into the fermentation cavity (14) and the buffer cavity (2); the air duct (21) is positioned in the buffer cavity (2), and one end of the air duct is in an inverted U-shaped design;

a guide pipe (3) is fixedly connected above the tank body (1); an annular plate (31) is fixedly connected in the guide pipe (3); the upper surface of the annular plate (31) is fixedly connected with an air storage bag (32); one side of the gas storage bag (32) far away from the tank body (1) is fixedly connected with a gravity plate (33); the air storage bag (32) is of a corrugated design; the gas storage bag (32) is used for storing methane; one side of the tank body (1) close to the guide pipe (3) is provided with first through grooves (34) which are uniformly distributed; the first through groove (34) is designed to communicate the air storage bag (32) with the buffer cavity (2); the partition plate (13) is positioned in the buffer cavity (2) and fixedly connected with a guide plate (22); the guide plate (22) is designed in a cross shape; the air guide pipes (21) are all positioned in the gaps of the guide plates (22);

first sliding grooves (23) which are uniformly distributed are formed in the partition plate (13); the first sliding chute (23) corresponds to the guide plate (22) in a clearance manner and is close to the guide plate; a sliding column (24) is connected in the first sliding chute (23) in a sliding way; two ends of the sliding column (24) respectively extend into the fermentation cavity (14) and the buffer cavity (2); the sliding column (24) is positioned in the buffer cavity (2) and fixedly connected with a sliding plate (25); an arc-shaped groove is formed in one side, close to the partition plate (13), of the sliding plate (25); the sliding column (24) is positioned in the fermentation cavity (14) and fixedly connected with a plurality of moving rods (4); the plurality of moving rods (4) are arranged in a radial shape; the moving rods (4) are all designed to be inclined downwards by taking the sliding column (24) as a center; the moving rods (4) are all provided with moving plates (41); the moving plates (41) are all arranged in an inclined mode along the circumferential direction;

a floating ring (5) is connected in the fermentation cavity (14) in a floating way; a second sliding groove (51) is formed in the inner wall of the floating ring (5); an auxiliary plate (52) is arranged on the inner wall of the floating ring (5); the auxiliary plate (52) extends into the second sliding groove (51) and is connected with the floating ring (5) in a sliding mode through the second sliding groove (51); one ends of the auxiliary plates (52) positioned in the second sliding grooves (51) are connected with each other through springs;

the buffer cavity (2) is fixedly connected with a flow guide ring (6) above the guide plate (22); a diversion trench (61) is formed in the diversion ring (6); the first through grooves (34) extend into the guide ring (6) and are designed to be opened at the bottom of the guide groove (61); the first through groove (34) and the diversion groove (61) form a U-shaped structure; the pool body (1) and the buffer cavity (2) are designed to be close to one side of the guide pipe (3) and are designed to be arc-shaped, and the arc-shaped opening is far away from the guide pipe (3).

2. A compound C according to claim 1O₂Straw air fertilizer reaction tank, its characterized in that: the inner wall of the guide pipe (3) is provided with third sliding chutes (7) which are uniformly distributed; the gravity plate (33) extends into the third sliding chute (7); and a second through groove (71) is formed in one end, located in the third sliding groove (7), of the gravity plate (33).

3. CO according to claim 2₂Straw air fertilizer reaction tank, its characterized in that: an extension bag (72) is fixedly connected in the second through groove (71); the extension bag (72) is made of an extensible film material; the extension bag (72) is filled with water in an initial state; the gravity plate (33) is positioned between the air storage bag (32) and the guide pipe (3) and is fixedly connected with a test pipe (73); the test tube (73) extends into the extension bag (72).

4. CO according to claim 1₂Straw air fertilizer reaction tank, its characterized in that: one side of the clapboard (13) close to the fermentation cavity (14) is fixedly connected with support tubes (42) which are uniformly distributed; the supporting tube (42) is provided with fourth sliding chutes (43) which are uniformly distributed; the sliding column (24) extends into the interior of the support tube (42).

5. CO according to claim 1₂Straw air fertilizer reaction tank, its characterized in that: one side of the movable rod (4) close to the support tube (42) is fixedly connected with a connecting ring (44); the connecting ring (44) is connected with the outer wall of the supporting pipe (42) in a sliding way; the fourth sliding chute (43) is connected with a pore plate (45) in a sliding way; the surface of the pore plate (45) is provided with limit holes (46) which are uniformly distributed; a hinge plate (47) is connected in the limiting hole (46) in a sliding manner; the hinge plate (47) extends to the interior of the supporting tube (42) and is hinged with the sliding column (24); the moving plate (41) is made of water-floating materials.

6. CO according to claim 5₂Straw air fertilizer reaction tank, its characterized in that: a rotating groove (8) is formed in the moving plate (41); the moving plate (41) is rotationally connected with the moving rod (4) through a rotating groove (8); a third through groove (81) is formed in the movable rod (4); the third jointLimiting teeth (82) are elastically connected in the groove (81) through springs; the limiting teeth (82) extend to the bottom of the connecting ring (44); tooth grooves (83) are uniformly distributed on the surface of the rotating groove (8); the limiting teeth (82) are matched with the tooth grooves (83).