Efficient biogas slurry nitrogen conservation process

Abstract

The invention discloses an efficient biogas slurry nitrogen conservation process, a biogas slurry fermentation tank is used, the biogas slurry fermentation tank comprises a main body unit and an operation unit, the main body unit comprises a tank body, and the tank body is fixedly connected with a liquid inlet pipe and a liquid outlet pipe; the operation unit comprises a plurality of vertical plates, partition plates are slidably inserted into the vertical plates in a penetrating mode, a lifting assembly is arranged at the bottom of the pool body, a moving assembly is arranged at the bottom of the pool body, a rotating assembly is arranged above the moving assembly, a power assembly is arranged on the rotating assembly, and a connecting assembly is arranged between the power assembly and the rotating assembly; and a pressing assembly for driving the connecting assembly is arranged above the tank body. The biogas slurry on the leftmost side of the liquid outlet pipe is pumped through the water pump, the biogas slurry circulates in the liquid outlet pipe, meanwhile, the electromagnetic valve on the right side is opened, so that the biogas slurry on the right side can be supplemented to the left side, and after a proper amount of biogas slurry is added, the electromagnetic valve on the right side is closed, so that the rectangular opening is closed, and the biogas slurry can be subjected to multi-stage fermentation; and meanwhile, the temperature in the tank body is utilized, so that the waste of heat is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of biogas slurry fermentation, and in particular to a high-efficiency nitrogen preservation process for biogas slurry. Background Art

[0002] The high-efficiency nitrogen preservation of biogas slurry is mainly to optimize the utilization efficiency of nitrogen in biogas slurry (i.e., the organic liquid fertilizer after anaerobic fermentation), reduce nitrogen loss, and improve the application effect of fertilizers. Most of the existing biogas slurry fermentations use pig manure as raw materials for fermentation. After preliminary fermentation, the mixture of pig manure and liquid is subjected to solid-liquid separation to obtain biogas slurry and solid fertilizer. The biogas slurry is fermented again to obtain biogas and liquid fertilizer.

[0003] During the existing biogas slurry fermentation process, the temperature in the fermentation tank generally needs to be maintained between 50°C and 60°C. Most of the internal temperature escapes outside, resulting in waste of resources. At the same time, for the fermentation of biogas slurry, the staff needs to regularly extract the biogas slurry in the tank, and then mix the biogas slurry together. The extracted biogas slurry may have incomplete fermentation. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A high-efficiency nitrogen preservation process for biogas slurry uses a biogas slurry fermentation tank, which includes a main unit and an operation unit. The specific process using the above biogas slurry fermentation tank is as follows:

[0007] S1. When in use, biogas slurry is added into the tank body through the liquid inlet pipe;

[0008] S2. After the biogas slurry fully reacts, the user uses an external water pump to extract the biogas slurry on the leftmost side through the liquid outlet pipe;

[0009] S3. The biogas slurry flows in the liquid outlet pipe, driving the impeller to rotate, causing the rotating rod to rotate. Meanwhile, the solenoid valve on the right side is opened, allowing the steam of the heated low-boiling-point evaporation liquid to enter the right side of the top of the cross plate, squeezing the piston plate to move to the left, driving the push rod to move to the left, squeezing the abutting plate, driving the sliding plate to move downward, causing the rectangular rod to move downward and abut against the vertical rod. Subsequently, when the rectangular rod rotates to coincide with the rectangular groove, it is inserted into the rectangular groove, driving the vertical rod to rotate together, causing the first bevel gear to rotate, driving the second bevel gear to rotate, causing the rotating roller to rotate, causing the transmission gear to rotate, driving the bottom plate to move to the left, driving the side plate to move to the left. Through the cooperation between the clamping rod and the sliding opening, the clamping rod is driven to move downward, driving the round rod to move downward, causing the partition plate to move downward, opening the rectangular opening, allowing the biogas slurry at the top right to be replenished to the left. At the same time, the staff can add new biogas slurry to the far right of the pool body through the liquid inlet pipe;

[0010] S4. After an appropriate amount of biogas slurry is added, the solenoid valve on the left side is opened, causing the piston plate to move to the right, driving the two push rods to move to the right, causing the right rectangular rod to be inserted into the right vertical rod, causing the right rotating rod to drive the right vertical rod to rotate in the reverse direction, causing the bottom plate to move to the right, driving the round rod to move upward, causing the partition plate to move upward, closing the rectangular opening. Subsequently, the solenoid valve on the right side is opened again, causing the piston plate to move to a suitable position in the middle, causing the rectangular rod to disengage from the vertical rod, completing the addition of the biogas slurry;

[0011] The main body unit includes a pool body, a cover plate is arranged on the pool body, a plurality of support legs are fixedly connected to the bottom of the pool body, a liquid inlet pipe and a liquid outlet pipe are respectively fixedly connected to the pool body, and an air outlet pipe is fixedly connected to the cover plate;

[0012] The operation unit includes a plurality of vertical plates, the vertical plates are fixedly connected to the inner side wall of the pool body, a rectangular opening is formed in the vertical plates, a partition plate is slidably inserted in the vertical plates, an infusion pipe is fixedly connected to the vertical plates, a lifting component for driving the partition plate to open and close is arranged at the bottom of the pool body, a moving component for driving the lifting component to move is arranged at the bottom of the pool body, a rotating component is arranged above the moving component, a power component is arranged on the rotating component, a connecting component is arranged between the power component and the rotating component, and a pressing component for driving the connecting component is arranged above the pool body.

[0013] As a preferred scheme of the biogas slurry high-efficiency nitrogen preservation process of the present invention, among them: the lifting component includes a plurality of connecting rods, the connecting rods are fixedly connected between the two support legs, a bottom plate is slidably connected to the connecting rods, a plurality of side plates are symmetrically fixedly connected to the bottom plate, a sliding opening is formed in the side plates, a plurality of round rods are jointly slidably inserted through the pool body and the vertical plates, and clamping rods are symmetrically fixedly connected to the bottom ends of the round rods, and the clamping rods are arranged in the sliding openings.

[0014] As a preferred embodiment of the high-efficiency nitrogen preservation process for biogas slurry of the present invention, the mobile component includes a plurality of first fixing rods, the first fixing rods are fixedly connected to the support legs, a rotating roller is rotatably inserted through the two first fixing rods, drive gears are symmetrically and fixedly connected to the rotating roller, a plurality of drive tooth plates are symmetrically and fixedly connected to the bottom plate, and the drive gears are engaged with the drive tooth plates.

[0015] As a preferred embodiment of the high-efficiency nitrogen preservation process for biogas slurry of the present invention, the rotating component includes two second fixing rods, the two second fixing rods are respectively fixedly connected to the left and right side walls of the pool body, a vertical rod is rotatably inserted through the second fixing rods, a first bevel gear is fixedly connected to the bottom end of the vertical rod, a second bevel gear is fixedly connected to the rotating roller, and the first bevel gear is engaged with the second bevel gear.

[0016] As a preferred embodiment of the high-efficiency nitrogen preservation process for biogas slurry of the present invention, the power component includes two rotating rods, the two rotating rods are respectively rotatably inserted through the liquid outlet pipe and the liquid inlet pipe, impellers are fixedly connected to the rotating rods, a first semi-circular plate and a second semi-circular plate are respectively fixedly connected to the inner walls of the liquid outlet pipe and the liquid inlet pipe on the side of the rotating rod close to the pool body, and the second semi-circular plate and the first semi-circular plate are respectively located at the front and rear sides inside the liquid inlet pipe and the liquid outlet pipe.

[0017] As a preferred embodiment of the high-efficiency nitrogen preservation process for biogas slurry of the present invention, the connecting component includes a rectangular rod, the rectangular rod is slidably inserted through the rotating rod, a circular plate is fixedly connected to the top of the rectangular rod, a spring is fixedly connected between the circular plate and the rotating rod, a rectangular groove is formed on the vertical rod, and the rectangular rod is matched with the rectangular groove.

[0018] As a preferred embodiment of the high-efficiency nitrogen preservation process for biogas slurry of the present invention, the pressing component includes a rectangular box, the rectangular box is fixedly connected to the cover plate, a cross plate is fixedly connected to the inner wall of the rectangular box, a low-boiling-point evaporation liquid is filled at the bottom of the cross plate, electromagnetic valves are symmetrically arranged on the cross plate, a piston plate is slidably connected between the rectangular box and the cross plate, push rods are symmetrically and fixedly connected to the piston plate, steam pipes are symmetrically and fixedly connected to the rectangular box, one-way valves are arranged on the steam pipes, sliding plates are symmetrically and slidably connected in the up and down directions on the left and right side walls of the pool body, a pressing plate is fixedly connected to the sliding plate, and the pressing plate is matched with the push rod.

[0019] As a preferred embodiment of the high-efficiency nitrogen preservation process for biogas slurry of the present invention, annular baffles are fixedly connected between the rectangular box and the cross plate, and the two annular baffles are respectively located on both sides of the piston plate.

[0020] As a preferred embodiment of the efficient nitrogen preservation process for biogas slurry of the present invention, the following is provided: an annular groove is formed at the top of the tank body, and the annular groove is adapted to the cover plate.

[0021] Advantages of the present invention:

[0022] The user uses an external water pump to extract the biogas slurry at the leftmost side of the liquid outlet pipe. The biogas slurry flows in the liquid outlet pipe. At the same time, the solenoid valve on the right side is opened, driving the push rod to move to the left, so that the rectangular rod is inserted into the rectangular groove, driving the vertical rod to rotate together, driving the bottom plate to move to the left, driving the side plate to move to the left. Through the cooperation between the clamping rod and the sliding opening, the clamping rod is driven to move downward, driving the round rod to move downward, so that the partition plate moves downward, opening the rectangular opening, enabling the biogas slurry on the right side to be supplemented to the left side. At the same time, the staff can add new biogas slurry to the rightmost side of the tank body through the liquid inlet pipe. After an appropriate amount of biogas slurry is added, the solenoid valve on the right side is closed, and the solenoid valve on the left side is opened, causing the bottom plate to move to the right, driving the round rod to move upward, so that the partition plate moves upward, closing the rectangular opening. Subsequently, the solenoid valve on the right side is opened again, causing the piston plate to move to a suitable position in the middle, so that the rectangular rod disengages from the vertical rod, completing the addition of biogas slurry, enabling the biogas slurry to undergo multi-stage fermentation, ensuring complete fermentation of the biogas slurry, separating the biogas slurry at different fermentation times, avoiding mixing of the biogas slurry, and at the same time utilizing the temperature inside the tank body to reduce heat waste. Description of the drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0024] Figure 1 It is a front overall structural schematic diagram of a biogas slurry fermentation tank used in an efficient nitrogen preservation process for biogas slurry proposed by the present invention;

[0025] Figure 2 It is Figure 1 the sectional structural schematic diagram;

[0026] Figure 3 It is Figure 2 the partial sectional structural schematic diagram;

[0027] Figure 4 It is Figure 2 the partial structural schematic diagram;

[0028] Figure 5 It is Figure 4 the partial sectional structural schematic diagram;

[0029] Figure 6 is Figure 4 a schematic diagram of a partial sectional structure of

[0030] Figure 7 is Figure 4 a schematic diagram of a partial sectional structure of

[0031] In the figure: 100, main body unit; 101, pool body; 102, cover plate; 103, annular groove; 104, support leg; 105, liquid inlet pipe; 106, liquid outlet pipe; 107, gas outlet pipe; 200, operation unit; 201, vertical plate; 202, rectangular opening; 203, partition board; 204, liquid delivery pipe; 205, lifting assembly; 205a, bottom plate; 205b, side plate; 205c, sliding opening; 205d, round rod; 205e, clamping rod; 205f, connecting rod; 206, moving assembly; 206a, first fixing rod; 206b, rotating roller; 206c, transmission gear; 206d, transmission rack; 207, rotating assembly; 207a, vertical rod; 207b, first bevel gear; 207c, second bevel gear; 207d, second fixing rod; 208, power assembly; 208a, rotating rod; 208b, impeller; 208c, first semi-circular plate; 208d, second semi-circular plate; 209, connecting assembly; 209a, rectangular rod; 209b, circular plate; 209c, spring; 209d, rectangular groove; 210, pressing assembly; 210a, rectangular box; 210b, cross plate; 210c, solenoid valve; 210d, piston plate; 210e, annular baffle; 210f, push rod; 210g, steam delivery pipe; 210h, check valve; 210i, sliding plate; 210j, pressing plate. Detailed implementation manners

[0032] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings of the specification.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0034] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that mutually excludes other embodiments.

[0035] Next, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be locally enlarged not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0036] Referring to Figures 1-7 , the present invention provides an efficient nitrogen preservation process for biogas slurry, which uses a biogas slurry fermentation tank, which includes a main body unit 100 and an operation unit 200. The specific process using the above biogas slurry fermentation tank is as follows:

[0037] S1. When in use, biogas slurry is added into the tank body 101 through the liquid inlet pipe 105;

[0038] S2. After the biogas slurry has fully reacted, the user uses an external water pump to pump out the biogas slurry at the leftmost side of the liquid outlet pipe 106;

[0039] S3. The biogas slurry flows in the liquid outlet pipe 106, driving the impeller 208b to rotate, causing the rotating rod 208a to rotate. At the same time, the solenoid valve 210c on the right side is opened, so that the steam of the low-boiling-point evaporation liquid after heating enters the right side of the top of the cross plate 210b, squeezing the piston plate 210d to move to the left, driving the push rod 210f to move to the left, squeezing the abutting plate 210j, driving the sliding plate 210i to move downward, causing the rectangular rod 209a to move downward and abut against the vertical rod 207a. Subsequently, when the rectangular rod 209a rotates to coincide with the rectangular groove 209d, it is inserted into the rectangular groove 209d, driving the vertical rod 207a to rotate together, causing the first bevel gear 207b to rotate, driving the second bevel gear 207c to rotate, causing the rotating roller 206b to rotate, causing the transmission gear 206c to rotate, driving the bottom plate 205a to move to the left, driving the side plate 205b to move to the left. Through the cooperation between the clamping rod 205e and the sliding opening 205c, the clamping rod 205e is driven to move downward, driving the round rod 205d to move downward, causing the partition plate 203 to move downward, opening the rectangular opening 202, enabling the biogas slurry at the top right to be replenished to the left, and at the same time, the staff can add new biogas slurry to the rightmost side of the tank body 101 through the liquid inlet pipe 105;

[0040] S4. After adding an appropriate amount of biogas slurry, open the left electromagnetic valve 210c, so that the piston plate 210d moves to the right, driving the two push rods 210f to move to the right, so that the right rectangular rod 209a is inserted into the right vertical rod 207a, so that the right rotating rod 208a drives the right vertical rod 207a to rotate in the reverse direction, so that the bottom plate 205a moves to the right, driving the round rod 205d to move upward, so that the partition plate 203 moves upward, so that the rectangular opening 202 is closed. Then open the right electromagnetic valve 210c again, so that the piston plate 210d moves to a suitable position in the middle, so that the rectangular rod 209a disengages from the vertical rod 207a, completing the addition of biogas slurry;

[0041] The main body unit 100 includes a pool body 101, a cover plate 102 is arranged on the pool body 101, a plurality of support legs 104 are fixedly connected to the bottom of the pool body 101, a liquid inlet pipe 105 and a liquid outlet pipe 106 are respectively fixedly connected to the pool body 101, an air outlet pipe 107 is fixedly connected to the cover plate 102, and heating equipment can be installed in the cover plate 102;

[0042] The operation unit 200 includes a plurality of vertical plates 201, the vertical plates 201 are fixedly connected to the inner side wall of the pool body 101, a rectangular opening 202 is formed in the vertical plates 201, a partition plate 203 is slidably inserted into the vertical plates 201, an infusion pipe 204 is fixedly connected to the vertical plates 201, a lifting assembly 205 for driving the partition plate 203 to open and close is arranged at the bottom of the pool body 101, a moving assembly 206 for driving the lifting assembly 205 to move is arranged at the bottom of the pool body 101, a rotating assembly 207 is arranged above the moving assembly 206, a power assembly 208 is arranged on the rotating assembly 207, a connecting assembly 209 is arranged between the power assembly 208 and the rotating assembly 207, and a pressing assembly 210 for driving the connecting assembly 209 is arranged above the pool body 101.

[0043] Among them, the lifting assembly 205 includes a plurality of connecting rods 205f, the connecting rods 205f are fixedly connected between the two support legs 104, a bottom plate 205a is slidably connected to the connecting rods 205f, a plurality of side plates 205b are symmetrically fixedly connected to the bottom plate 205a, a sliding opening 205c is formed in the side plates 205b, a plurality of round rods 205d are slidably inserted through the pool body 101 and the vertical plates 201 together, a clamping rod 205e is symmetrically fixedly connected to the bottom end of the round rod 205d, the clamping rod 205e is arranged in the sliding opening 205c, when the bottom plate 205a moves left and right, driving the side plates 205b to move left and right, through the cooperation between the clamping rod 205e and the sliding opening 205c, driving the clamping rod 205e to move up and down, driving the round rod 205d to move up and down, and opening and closing the partition plate 203.

[0044] Further, the moving component 206 includes a plurality of first fixing rods 206a which are fixedly connected to the support legs 104. A rotating roller 206b is rotatably inserted through the two first fixing rods 206a. Symmetrically fixed to the rotating roller 206b are transmission gears 206c. Symmetrically fixed to the bottom plate 205a are a plurality of transmission toothed plates 206d. The transmission gears 206c and the transmission toothed plates 206d are meshed with each other. When the two rotating rollers 206b rotate respectively, the rotating roller 206b can be driven to rotate, causing the transmission gears 206c to rotate and driving the bottom plate 205a to move left and right.

[0045] Further, the rotating component 207 includes two second fixing rods 207d which are respectively fixedly connected to the left and right side walls of the pool body 101. A vertical rod 207a is rotatably inserted through the second fixing rods 207d. Fixed to the bottom end of the vertical rod 207a is a first bevel gear 207b. Fixed to the rotating roller 206b is a second bevel gear 207c. The first bevel gear 207b and the second bevel gear 207c are meshed with each other. When the two vertical rods 207a rotate in sequence, the first bevel gear 207b is driven to rotate, causing the second bevel gear 207c to rotate and driving the rotating roller 206b to rotate.

[0046] Further, the power component 208 includes two rotating rods 208a which are respectively rotatably inserted through the liquid outlet pipe 106 and the liquid inlet pipe 105. Fixed to the rotating rods 208a are impellers 208b. Fixed to the inner walls of the liquid outlet pipe 106 and the liquid inlet pipe 105 on the side close to the pool body 101 of the rotating rods 208a are a first semi-circular plate 208c and a second semi-circular plate 208d respectively. The second semi-circular plate 208d and the first semi-circular plate 208c are respectively located at the front side and the rear side inside the liquid inlet pipe 105 and the liquid outlet pipe 106. When the biogas slurry flows through the liquid inlet pipe 105 and the liquid outlet pipe 106, the impellers 208b can be driven to rotate, and the two impellers 208b rotate in opposite directions, driving the two rotating rods 208a to rotate.

[0047] Further, the connecting component 209 includes a rectangular rod 209a which is slidably inserted through the rotating rod 208a. Fixed to the top of the rectangular rod 209a is a circular plate 209b. A spring 209c is fixedly connected between the circular plate 209b and the rotating rod 208a. A rectangular groove 209d is formed in the vertical rod 207a. The rectangular rod 209a is matched with the rectangular groove 209d. When the rectangular rod 209a is pressed, the rectangular rod 209a can be driven to move downward, causing the rectangular rod 209a to abut against the vertical rod 207a. When the rectangular rod 209a rotates to coincide with the rectangular groove 209d, the rectangular rod 209a can be driven to insert into the rectangular groove 209d, enabling the rotating rod 208a to drive the vertical rod 207a to rotate together.

[0048] Further, the pressing component 210 includes a rectangular box 210a fixedly connected to the cover plate 102. A cross plate 210b is fixedly connected to the inner wall of the rectangular box 210a. The bottom of the cross plate 210b is filled with a low-boiling-point evaporation liquid, which is liquid dichloromethane. Solenoid valves 210c are symmetrically arranged on the cross plate 210b. A piston plate 210d is slidably connected to both the rectangular box 210a and the cross plate 210b. Push rods 210f are symmetrically and fixedly connected to the piston plate 210d. Steam pipes 210g are symmetrically and fixedly connected to the rectangular box 210a. Check valves 210h are provided on the steam pipes 210g. Sliding plates 210i are slidably connected to the left and right side walls of the pool body 101 in the vertical direction. A pressing plate 210j is fixedly connected to the sliding plates 210i. The pressing plate 210j cooperates with the push rods 210f. When the rectangular box 210a is heated, the corresponding solenoid valve 210c is opened, so that the water vapor of the low-boiling-point evaporation liquid enters the cross plate 210b through the solenoid valve 210c to push the piston plate 210d to move to one side.

[0049] Further, annular baffles 210e are fixedly connected to both the rectangular box 210a and the cross plate 210b. The two annular baffles 210e are respectively located on both sides of the piston plate 210d. The movement range of the piston plate 210d is restricted by the arrangement of the annular baffles 210e.

[0050] Furthermore, an annular groove 103 is formed at the top of the pool body 101. The annular groove 103 cooperates with the cover plate 102. The cover plate 102 is placed in the annular groove 103 to cover the pool body 101. At the same time, the user can add liquid into the annular groove 103 for sealing.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A biogas slurry efficient nitrogen conservation process, which uses a biogas slurry fermentation tank, which includes a main unit (100) and an operating unit (200), characterized in that: The specific process of using the above-mentioned biogas slurry fermentation tank is as follows: S1, when in use, adding biogas slurry into the tank body (101) through the liquid inlet pipe (105); S2, after the biogas slurry is fully reacted, the user uses an external water pump to extract the biogas slurry on the leftmost side through the liquid outlet pipe (106); S3, the biogas slurry circulates in the liquid outlet pipe (106), driving the impeller (208b) to rotate, causing the rotating rod (208a) to rotate, and at the same time opening the electromagnetic valve (210c) on the right side, so that the low-boiling-point evaporating liquid steam after being heated enters the right side of the top of the horizontal plate (210b), pressing the piston plate (210d) to move to the left, driving the push rod (210f) to move to the left, pressing the abutment plate (210j), and driving the sliding plate (210i) to move downward, so that the rectangular rod (209a) moves downward and abuts against the vertical rod (207a), and then when the rectangular rod (209a) rotates to match the rectangular groove (209d), it is inserted into the rectangular groove (209d), driving the vertical rod (207a) The first bevel gear (207b) and the second bevel gear (207c) rotate together, so that the first bevel gear (207b) rotates, which drives the second bevel gear (207c) to rotate, so that the rotating roller (206b) rotates, so that the transmission gear (206c) rotates, and drives the bottom plate (205a) to move to the left, drives the side plate (205b) to move to the left, and drives the clamping rod (205e) to move downward through the cooperation between the clamping rod (205e) and the sliding opening (205c), drives the round rod (205d) to move downward, and drives the partition (203) downward, so that the rectangular opening (202) is opened, so that the biogas slurry on the top right side can be supplemented to the left side, and at the same time, the staff can add new biogas slurry to the rightmost side of the tank body (101) through the liquid inlet pipe (105); S4. After adding an appropriate amount of biogas slurry, the left electromagnetic valve (210c) is opened, so that the piston plate (210d) moves to the right, driving the two push rods (210f) to move to the right, so that the right rectangular rod (209a) is inserted into the right vertical rod (207a), so that the right rotating rod (208a) drives the right vertical rod (207a) to rotate in the opposite direction, so that the bottom plate (205a) moves to the right, driving the round rod (205d) to move upward, so that the partition (203) moves upward, so that the rectangular opening (202) is closed, and then the right electromagnetic valve (210c) is opened again, so that the piston plate (210d) moves to a suitable middle position, so that the rectangular rod (209a) is separated from the vertical rod (207a), and the addition of biogas slurry is completed; The main unit (100) comprises a tank body (101), the tank body (101) is provided with a cover plate (102), a plurality of supporting legs (104) are fixedly connected to the bottom of the tank body (101), a liquid inlet pipe (105) and a liquid outlet pipe (106) are respectively fixedly connected to the tank body (101), and an air outlet pipe (107) is fixedly connected to the cover plate (102); The operation unit (200) comprises a plurality of vertical plates (201), wherein the vertical plates (201) are fixedly connected to the inner side wall of the tank body (101), a rectangular opening (202) is provided on the vertical plates (201), a partition plate (203) is slidably inserted in the vertical plates (201), a liquid infusion tube (204) is fixedly connected to the vertical plates (201), and a lifting assembly (205) for driving the partition plate (203) to open and close is provided at the bottom of the tank body (101), A moving assembly (206) for driving the lifting assembly (205) to move is provided at the bottom of the pool body (101); a rotating assembly (207) is provided above the moving assembly (206); a power assembly (208) is provided on the rotating assembly (207); a connecting assembly (209) is provided between the power assembly (208) and the rotating assembly (207); and a pressing assembly (210) for driving the connecting assembly (209) is provided above the pool body (101).

2. A biogas slurry efficient nitrogen conservation process according to claim 1, characterized in that: The lifting assembly (205) comprises a plurality of connecting rods (205f), wherein the connecting rods (205f) are fixedly connected between two supporting legs (104), a bottom plate (205a) is slidably connected to the connecting rods (205f), a plurality of side plates (205b) are symmetrically fixedly connected to the bottom plate (205a), a sliding opening (205c) is provided on the side plates (205b), a plurality of round rods (205d) are slidably inserted through the pool body (101) and the vertical plate (201), a clamping rod (205e) is symmetrically fixedly connected to the bottom end of the round rod (205d), and the clamping rod (205e) is arranged in the sliding opening (205c).

3. A biogas slurry efficient nitrogen conservation process according to claim 2, characterized in that: The moving assembly (206) comprises a plurality of first fixed rods (206a), wherein the first fixed rods (206a) are fixedly connected to the supporting legs (104), and rotating rollers (206b) are interspersed and rotated together on two of the first fixed rods (206a), and transmission gears (206c) are symmetrically fixedly connected to the rotating rollers (206b), and a plurality of transmission tooth plates (206d) are symmetrically fixedly connected to the bottom plate (205a), and the transmission gears (206c) and the transmission tooth plates (206d) are meshed with each other.

4. A biogas slurry efficient nitrogen conservation process according to claim 3, characterized in that: The rotating assembly (207) comprises two second fixed rods (207d), the two second fixed rods (207d) are respectively fixedly connected to the left and right side walls of the pool body (101), a vertical rod (207a) is rotatably inserted into the second fixed rod (207d), a first bevel gear (207b) is fixedly connected to the bottom end of the vertical rod (207a), a second bevel gear (207c) is fixedly connected to the rotating roller (206b), and the first bevel gear (207b) is meshed with the second bevel gear (207c).

5. A biogas slurry efficient nitrogen conservation process according to claim 4, characterized in that: The power assembly (208) comprises two rotating rods (208a), the two rotating rods (208a) are respectively rotated and inserted into the liquid outlet pipe (106) and the liquid inlet pipe (105), the rotating rods (208a) are fixedly connected with an impeller (208b), and the rotating rods (208a) are respectively fixedly connected with a first semicircular plate (208c) and a second semicircular plate (208d) on the inner walls of the liquid outlet pipe (106) and the liquid inlet pipe (105) on the side of the rotating rod (208a) close to the pool body (101), and the second semicircular plate (208d) and the first semicircular plate (208c) are respectively located at the front side and the rear side of the liquid inlet pipe (105) and the liquid outlet pipe (106).

6. A biogas slurry efficient nitrogen conservation process according to claim 5, characterized in that: The connecting assembly (209) comprises a rectangular rod (209a), the rectangular rod (209a) is slidably inserted into the rotating rod (208a), a circular plate (209b) is fixedly connected to the top of the rectangular rod (209a), a spring (209c) is fixedly connected between the circular plate (209b) and the rotating rod (208a), a rectangular groove (209d) is provided on the vertical rod (207a), and the rectangular rod (209a) matches the rectangular groove (209d).

7. A biogas slurry efficient nitrogen conservation process according to claim 6, characterized in that: The pressing assembly (210) comprises a rectangular box (210a), the rectangular box (210a) being fixedly connected to the cover plate (102), a transverse plate (210b) being fixedly connected to the inner wall of the rectangular box (210a), a low-boiling-point evaporative liquid being filled at the bottom of the transverse plate (210b), a solenoid valve (210c) being symmetrically arranged on the transverse plate (210b), a piston plate (210d) being slidably connected to the rectangular box (210a) and the transverse plate (210b), and the movable A push rod (210f) is symmetrically fixedly connected to the plug plate (210d), a steam pipe (210g) is symmetrically fixedly connected to the rectangular box (210a), a one-way valve (210h) is provided on the steam pipe (210g), and a sliding plate (210i) is symmetrically slidably connected to the left and right side walls of the tank body (101) in the up and down directions, and a resist plate (210j) is fixedly connected to the sliding plate (210i), and the resist plate (210j) cooperates with the push rod (210f).

8. A biogas slurry efficient nitrogen conservation process according to claim 7, characterized in that: An annular baffle (210e) is fixedly connected to the rectangular box (210a) and the transverse plate (210b), and the two annular baffles (210e) are respectively located on both sides of the piston plate (210d).

9. A biogas slurry efficient nitrogen conservation process according to claim 8, characterized in that: The top of the pool body (101) is provided with an annular groove (103), and the annular groove (103) matches with the cover plate (102).

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