Feeding equipment for straw biogas

Abstract

The invention discloses straw biogas feeding equipment in the technical field of straw biogas, which comprises a biogas digester, the top of the biogas digester is fixedly provided with a feeding box, and the two ends of the top and bottom of the feeding box are open; a sliding frame is slidably connected into the feeding box, a first sealing plate is hinged to the top of the sliding frame, and a first driving mechanism used for driving the first sealing plate to move is arranged at the top of the biogas digester; a first clamping block is fixedly connected to the inner wall of the first sealing plate, a first limiting block is slidably connected to the sliding frame, and the first clamping block can be connected with the first limiting block in a clamped mode. A sliding groove is formed in the inner wall of the feeding box, and the sliding groove is composed of an inclined groove and a vertical groove which communicate with each other. The first limiting block is fixedly connected with a sliding column capable of sliding in the sliding groove. A second sealing plate is arranged at the bottom of the feeding box; air can be prevented from entering the biogas digester when straw raw materials are added into the biogas digester.

Description

Technical Field

[0001] The invention relates to the technical field of straw biogas, in particular to straw biogas feeding equipment. Background Art

[0002] Straw biogas is a combustible gas produced by anaerobic fermentation of microorganisms using biogas equipment with crop straw as the main raw material in a strict anaerobic environment and certain temperature, moisture, pH and other conditions.

[0003] When conveying straw into the biogas digester, air will inevitably enter the feeding equipment. Therefore, after the raw materials are put into the feeding equipment, vacuum treatment is required. Since there are gaps between the straw raw materials and the vacuum equipment cannot completely extract the air, a small amount of air will enter the biogas digester, which will affect the biogas fermentation. Summary of the invention

[0004] The purpose of the present invention is to provide a straw biogas feeding device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a feeding device for straw biogas, comprising a biogas tank, a feed box fixedly installed on the top of the biogas tank, and openings at both ends of the top and bottom of the feed box; a sliding frame is slidably connected in the feed box, a first sealing plate is hinged on the top of the sliding frame, and a first driving mechanism for driving the first sealing plate to move is provided on the top of the biogas tank; a first clamping block is fixedly connected to the inner wall of the first sealing plate, and a first limit block is slidably connected to the sliding frame, and the first clamping block can be engaged with the first limit block; a slide groove is provided on the inner wall of the feed box, and the slide groove consists of a connected inclined groove and a vertical groove; a sliding column capable of sliding in the slide groove is fixedly connected to the first limit block; a second sealing plate is provided at the bottom of the feed box, and a second driving mechanism capable of driving it to move is provided on the side of the second sealing plate; an air outlet is provided on the first sealing plate, a first air outlet pipe located outside the air outlet is fixedly connected to the first sealing plate, and a sealing ball capable of blocking the air outlet is elastically slidably connected in the first air outlet pipe; and a water inlet pipe is fixedly connected to the feed box.

[0006] As a further solution of the present invention, the first driving mechanism comprises a cylinder, the output end of the cylinder is hinged to the first sealing plate; the fixed end of the cylinder is hinged to the biogas tank.

[0007] As a further solution of the present invention, the second driving mechanism comprises a return spring, a first traction rope and a second clamping block; one end of the return spring is fixedly connected to the second sealing plate, and the other end is fixedly connected to the biogas tank; a fixed pulley, a movable pulley and a steering wheel are arranged on the side of the first traction rope, and the fixed pulley and the steering wheel are rotatably installed on the top of the biogas tank, the movable pulley is rotatably connected to a slider, and the slider is slidably installed on the top of the biogas tank; the first traction rope is fixedly connected to the top of the biogas tank, and the other end is fixedly connected to the second sealing plate by successively passing through the movable pulley, the fixed pulley and the steering wheel; the second traction rope is fixedly connected to the slider, and the end of the second traction rope away from the slider passes through the feed box and is fixedly connected to the sliding frame; the second clamping block is fixedly installed at the bottom of the second sealing plate, and a second limit block is arranged on the side of the second clamping block; the second limit block is elastically slidably connected to the biogas tank in the vertical direction, and the second limit block can limit the second sealing plate and is located below the sliding frame.

[0008] As a further solution of the present invention, a three-way pipe is fixedly connected to the first air outlet pipe, and the other two ends of the three-way pipe are fixedly connected to the second air outlet pipes; the two second air outlet pipes are symmetrically arranged, and the sides are provided with blocking blocks that can seal them, the blocking blocks are elastically slidably connected to the three-way pipe, and the sides of the three-way pipe are provided with a third driving mechanism, and the third driving mechanism is used to drive the blocking blocks to open the second air outlet pipes.

[0009] As a further solution of the present invention, the third driving mechanism includes a rack rod, which is fixedly mounted on the top of the feed box, and a first gear that can mesh with the rack rod is arranged on the side of the rack rod, and a mounting block is rotatably mounted on the first gear, and the mounting block is fixedly connected to the tee pipe, and a second gear is fixedly connected to the rotating shaft of the first gear, and the second gear meshes with two symmetrically arranged incomplete gears, and the two incomplete gears are rotatably connected to the mounting block, and reels are fixedly connected to the rotating shafts of the two incomplete gears, and third traction ropes are wound around the reels, and the two third traction ropes are fixedly connected to two blocking blocks at one end away from the reel.

[0010] As a further solution of the present invention, the second air outlet pipe is a U-shaped pipe.

[0011] As a further solution of the present invention, a sealing ring is arranged on the top of the sliding frame.

[0012] As a further solution of the present invention, a roller is installed at the bottom of the sliding block.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention can ensure that the humidity of the straw reaches an appropriate range by providing a sliding frame, a first sealing plate, a second sealing plate and a water inlet pipe, and by injecting water into the feed box. At the same time, the air in the feed box can be completely discharged, and the air can be prevented from entering the biogas digester. At the same time, the first sealing plate can also cooperate with the sliding frame to squeeze out excess water in the straw raw material, which can better ensure that the moisture content of the straw raw material reaches an appropriate range (65%-70%), and the straw raw material can be better processed in the biogas digester. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the first clamping block, the first limiting block, the sliding groove and the sliding column of the present invention;

[0018] Figure 4 It is a partial structural schematic diagram of the present invention;

[0019] Figure 5 It is a schematic diagram of the structure of the third driving mechanism of the present invention.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] Biogas tank 1, feed box 2, sliding frame 3, first sealing plate 4, first clamping block 5, first limiting block 6, slide groove 7, sliding column 8, second sealing plate 9, air outlet 10, first air outlet pipe 11, sealing ball 12, water inlet pipe 13, cylinder 14, return spring 15, first traction rope 16, fixed pulley 17, movable pulley 18, steering wheel 19, slider 20, second traction rope 21, second clamping block 22, second limiting block 23, tee pipe 24, second air outlet pipe 25, blocking block 26, rack rod 27, first gear 28, mounting block 29, second gear 30, incomplete gear 31, reel 32, third traction rope 33. DETAILED DESCRIPTION

[0022] See also Figure 1-Figure 5The present invention provides a technical solution: a straw biogas feeding device, comprising a biogas tank 1, a feed box 2 is fixedly installed on the top of the biogas tank 1, and the top and bottom ends of the feed box 2 are open; a sliding frame 3 is slidably connected in the feed box 2, and a first sealing plate 4 is hinged on the top of the sliding frame 3, and a first driving mechanism for driving the first sealing plate 4 to move is arranged on the top of the biogas tank 1; a first clamping block 5 is fixedly connected to the inner wall of the first sealing plate 4, and a first limiting block 6 is slidably connected to the sliding frame 3, and the first clamping block 5 can be clamped with the first limiting block 6; the inner wall of the feed box 2 is A slide groove 7 is provided, and the slide groove 7 consists of a connected oblique groove and a vertical groove; a slide column 8 capable of sliding in the slide groove 7 is fixedly connected to the first limit block 6; a second sealing plate 9 is provided at the bottom of the feed box 2, and a second driving mechanism capable of driving it to move is provided on the side of the second sealing plate 9; an air outlet 10 is provided on the first sealing plate 4, and a first air outlet pipe 11 located outside the air outlet 10 is fixedly connected to the first sealing plate 4, and a sealing ball 12 capable of covering the air outlet 10 is elastically slidably connected in the first air outlet pipe 11; the feed box 2 is fixedly connected to a water inlet pipe 13.

[0023] When working, Figure 1-Figure 3As shown, during the fermentation of the biogas tank 1, the second sealing plate 9 is in a closed state, and air cannot enter the biogas tank 1 at this time; when straw raw materials need to be added, the staff puts a certain amount of straw raw materials into the feed box 2, and then starts the first driving mechanism, which will drive the first sealing plate 4 to rotate to a position that is in contact with the top surface of the sliding frame 3. At this time, the first sealing plate 4 cooperates with the sliding frame 3 to close the top of the feed box 2; at the same time, the water inlet pipe 13 injects a certain amount of water into the feed box 2; after the first sealing plate 4 is closed, as the water level in the feed box 2 gradually rises, the air in the feed box 2 will be squeezed and overflow from the air outlet 10; after the first sealing plate 4 is closed, the first driving mechanism will drive the first sealing plate 4 and the sliding frame 3 to move downward synchronously, and the downward movement of the first sealing plate 4 and the sliding frame 3 can speed up the discharge of air, and at the same time, the first sealing plate 4 can cooperate with the sliding frame 3 to squeeze the straw. Raw materials, excess moisture in the straw raw materials can be discharged to the outside of the feed box 2 through the air outlet 10 and the first air outlet pipe 11; it should be noted that the amount of straw raw materials added to the feed box 2 each time should be kept consistent, and the amount of water injected into the feed box 2 by the water inlet pipe 13 should also be kept consistent. When the first sealing plate 4 and the sliding frame 3 move downward to the specified position, a certain amount of moisture in the straw raw materials can be squeezed out, so that the moisture content of the straw raw materials can be ensured to reach an appropriate range (65%-70%), which can promote the reproduction and fermentation of microorganisms in the biogas tank 1; after the first sealing plate 4 and the sliding frame 3 move downward to the specified position, the second driving mechanism will drive the second sealing plate 9 to move to the left, and then the straw raw materials in the feed box 2 can fall into the biogas tank 1 for fermentation, and then the second driving mechanism can drive the second sealing plate 9 to move to the right to close the biogas tank 1; it should be noted that, Figure 3As shown, when the first sealing plate 4 and the sliding frame 3 move downward in the feed box 2 to squeeze the moisture in the straw, the sliding frame 3 will drive the first clamping block 5 to move downward synchronously, and the first clamping block 5 will drive the sliding column 8 to move synchronously. The sliding column 8 will first move to the side close to the first clamping block 5 under the action of the slide groove 7, and then move vertically downward. The sliding column 8 will drive the first limiting block 6 to move to a position that limits the first clamping block 5, and the first limiting block 6 can drive the first sealing plate 4 to fit more closely with the sliding frame 3 through the inclined surface set on the first clamping block 5, which can better prevent air from entering the feed box 2 after the first sealing plate 4 is closed; after the straw raw material is transported to the biogas tank 1, when the first driving mechanism drives the first sealing plate 4 to move upward, the first sealing plate 4 moves to the top of the feed box 2 (i.e. The first sealing plate 4 will only be opened when the sliding column 8 slides in the inclined groove of the sliding groove 7 to make the first limit block 6 disengage from the first clamping block 5. Therefore, the closing of the second sealing plate 9 and the upward movement of the first sealing plate 4 can be carried out simultaneously, which can improve the feeding efficiency; the present invention can ensure that the humidity of the straw can reach an appropriate range by setting the sliding frame 3, the first sealing plate 4, the second sealing plate 9 and the water inlet pipe 13, and injecting water into the feed box 2, and at the same time, the air in the feed box 2 can be completely discharged, and the air can be prevented from entering the biogas tank 1. At the same time, the first sealing plate 4 can also cooperate with the sliding frame 3 to squeeze out the excess water in the straw raw material, which can better ensure that the moisture content of the straw raw material reaches an appropriate range (65%-70%), and the straw raw material can be better fermented in the biogas tank 1.

[0024] As a further solution of the present invention, the first driving mechanism comprises a cylinder 14 , the output end of the cylinder 14 is hinged to the first sealing plate 4 ; the fixed end of the cylinder 14 is hinged to the biogas tank 1 .

[0025] When working, Figure 4 As shown, when the cylinder 14 is extended, it drives the first sealing plate 4 to rotate downward first and then move downward.

[0026] As a further solution of the present invention, the second driving mechanism includes a reset spring 15, a first traction rope 16 and a second clamping block 22; one end of the reset spring 15 is fixedly connected to the second sealing plate 9, and the other end is fixedly connected to the biogas tank 1; a fixed pulley 17, a movable pulley 18 and a steering wheel 19 are arranged on the side of the first traction rope 16, and the fixed pulley 17 and the steering wheel 19 are rotatably mounted on the top of the biogas tank 1, and the movable pulley 18 is rotatably connected to a slider 20, and the slider 20 is slidably mounted on the top of the biogas tank 1; the first traction rope 16 is fixedly connected to the top of the biogas tank 1, The other end passes through the movable pulley 18, the fixed pulley 17, the steering wheel 19 in sequence and is fixedly connected to the second sealing plate 9; a second traction rope 21 is fixedly connected to the slider 20, and the second traction rope 21 passes through the feed box 2 and is fixedly connected to the sliding frame 3 at one end away from the slider 20; the second clamping block 22 is fixedly installed at the bottom of the second sealing plate 9, and a second limit block 23 is arranged on the side of the second clamping block 22; the second limit block 23 is elastically slidably connected to the biogas tank 1 in the vertical direction, and the second limit block 23 can limit the second sealing plate 9 and is located below the sliding frame 3.

[0027] When working, Figure 1-Figure 3 As shown, when the sliding frame 3 moves downward to the specified position, it will drive the second limit block 23 to move downward, and the second limit block 23 will cancel the limit on the second blocking block 22, and then the second sealing plate 9 can move to the left under the elastic force of the reset spring 15, and then the straw material in the feed box 2 can fall into the biogas tank 1; then when the first driving mechanism drives the first sealing plate 4 and the sliding frame 3 to move upward, the sliding frame 3 will drive the sliding block 20 to move toward the side close to the feed box 2 through the second traction rope 21, and the sliding block 20 will drive the movable pulley 18 to move synchronously, and the movable pulley 18 will drive the second sealing plate 9 to move to the right through the first traction rope 16 under the action of the fixed pulley 17 and the steering wheel 19. Through the setting of the pulley group, the second sealing plate 9 can quickly close the biogas tank 1, which can ensure that after the first sealing plate 4 is opened, the second sealing plate 9 must be in a closed state, which can better ensure that air does not enter the biogas tank 1.

[0028] As a further solution of the present invention, a three-way pipe 24 is fixedly connected to the first air outlet pipe 11, and the other two ends of the three-way pipe 24 are fixedly connected to second air outlet pipes 25; the two second air outlet pipes 25 are symmetrically arranged, and the sides are provided with blocking blocks 26 that can seal them, the blocking blocks 26 are elastically slidably connected to the three-way pipe 24, and the side of the three-way pipe 24 is provided with a third driving mechanism, and the third driving mechanism is used to drive the blocking blocks 26 to open the second air outlet pipes 25.

[0029] The third driving mechanism includes a rack rod 27, which is fixedly mounted on the top of the feed box 2. A first gear 28 that can mesh with the rack rod 27 is arranged on the side of the rack rod 27. A mounting block 29 is rotatably mounted on the first gear 28. The mounting block 29 is fixedly connected to the tee pipe 24. A second gear 30 is fixedly connected to the rotating shaft of the first gear 28. The second gear 30 meshes with two symmetrically arranged incomplete gears 31. The two incomplete gears 31 are both rotatably connected to the mounting block 29. A reel 32 is fixedly connected to the rotating shaft of the two incomplete gears 31. A third traction rope 33 is wound around the reel 32. The two third traction ropes 33 are fixedly connected to the two blocking blocks 26 at one end away from the reel 32.

[0030] When working, Figure 4 and Figure 5 As shown, when the first sealing plate 4 rotates to fit tightly with the sliding frame 3, the first gear 28 rotates to a position meshing with the rack rod 27, and then the first sealing plate 4 drives the first gear 28 to move downward synchronously, and the rack rod 27 drives the first gear 28 to rotate; at this time, the first gear 28 drives the second gear 30 to rotate. Figure 5 The incomplete gear 31 on the left side rotates, the incomplete gear 31 on the left side drives the reel 32 to rotate, the reel 32 will reel up the third traction rope 33, the third traction rope 33 will drive the blocking block 26 on the left side to move toward the inside of the three-way pipe 24, at this time the second air outlet pipe 25 on the left side is opened, and then the air and excess moisture can be discharged from the second air outlet pipe 25 on the left side; when the first sealing plate 4 moves upward, the rack rod 27 will drive the first gear 28 to reverse, at this time the first gear 28 will drive the incomplete gear 31 on the right side to rotate through the second gear 30, the incomplete gear 31 on the right side will drive the reel 32 to rotate, the reel 32 will reel up the third traction rope 33, the third traction rope 33 will drive the blocking block 26 on the right side to move toward the inside of the three-way pipe 24 When the second air outlet pipe 25 is moved, the second air outlet pipe 25 on the right is opened and the second air outlet pipe 25 on the left is closed. Then the irritating gas overflowing from the biogas tank 1 during the feeding process can be discharged from the second air outlet pipe 25 on the right; it should be noted that, in the present embodiment, after the second sealing plate 9 is closed, the irritating gas will stay in the feed box 2. At this time, the first sealing plate 4 can stop moving upward, and then the water inlet pipe 13 can inject a certain amount of water into the feed box 2. The water can squeeze the irritating gas out through the second air outlet pipe 25 on the right. The end of the second air outlet pipe 25 away from the three-way pipe 24 can be connected to the gas treatment equipment, which can facilitate the collection and treatment of the irritating gas and avoid the irritating gas being directly discharged from the feed box 2 to cause discomfort to the staff.

[0031] As a further solution of the present invention, the second air outlet pipe 25 is a U-shaped pipe.

[0032] During operation, by configuring the second air outlet pipe 25 as a U-shaped pipe, it is possible to better prevent external air from entering the feed box 2 .

[0033] As a further solution of the present invention, a sealing ring is provided on the top of the sliding frame 3 .

[0034] During operation, by arranging a sealing ring on the top of the sliding frame 3, the sliding frame 3 and the first sealing plate 4 can be better sealed, and air can be better prevented from entering the feed box 2 after the first sealing plate 4 is closed.

[0035] As a further solution of the present invention, a roller is installed at the bottom of the slider 20.

[0036] During operation, by installing rollers at the bottom of the slider 20 , the slider 20 can slide more smoothly on the top of the biogas tank.

[0037] Working principle: Figure 1-Figure 3 As shown, during the fermentation of the biogas tank 1, the second sealing plate 9 is in a closed state, and air cannot enter the biogas tank 1 at this time; when straw raw materials need to be added, the staff puts a certain amount of straw raw materials into the feed box 2, and then starts the first driving mechanism, which will drive the first sealing plate 4 to rotate to a position that is in contact with the top surface of the sliding frame 3. At this time, the first sealing plate 4 cooperates with the sliding frame 3 to close the top of the feed box 2; at the same time, the water inlet pipe 13 injects a certain amount of water into the feed box 2; after the first sealing plate 4 is closed, as the water level in the feed box 2 gradually rises, the air in the feed box 2 will be squeezed and overflow from the air outlet 10; after the first sealing plate 4 is closed, the first driving mechanism will drive the first sealing plate 4 and the sliding frame 3 to move downward synchronously, and the downward movement of the first sealing plate 4 and the sliding frame 3 can speed up the discharge of air, and at the same time, the first sealing plate 4 can cooperate with the sliding frame 3 to squeeze the straw. Raw materials, excess moisture in the straw raw materials can be discharged to the outside of the feed box 2 through the air outlet 10 and the first air outlet pipe 11; it should be noted that the amount of straw raw materials added to the feed box 2 each time should be kept consistent, and the amount of water injected into the feed box 2 by the water inlet pipe 13 should also be kept consistent. When the first sealing plate 4 and the sliding frame 3 move downward to the specified position, a certain amount of moisture in the straw raw materials can be squeezed out, so that the moisture content of the straw raw materials can be ensured to reach an appropriate range (65%-70%), which can promote the reproduction and fermentation of microorganisms in the biogas tank 1; after the first sealing plate 4 and the sliding frame 3 move downward to the specified position, the second driving mechanism will drive the second sealing plate 9 to move to the left, and then the straw raw materials in the feed box 2 can fall into the biogas tank 1 for fermentation, and then the second driving mechanism can drive the second sealing plate 9 to move to the right to close the biogas tank 1; it should be noted that, Figure 3As shown, when the first sealing plate 4 and the sliding frame 3 move downward in the feed box 2 to squeeze the moisture in the straw, the sliding frame 3 will drive the first clamping block 5 to move downward synchronously, and the first clamping block 5 will drive the sliding column 8 to move synchronously. The sliding column 8 will first move to the side close to the first clamping block 5 under the action of the slide groove 7, and then move vertically downward. The sliding column 8 will drive the first limiting block 6 to move to a position that limits the first clamping block 5, and the first limiting block 6 can drive the first sealing plate 4 to fit more closely with the sliding frame 3 through the inclined surface set on the first clamping block 5, which can better prevent air from entering the feed box 2 after the first sealing plate 4 is closed; after the straw raw material is transported to the biogas tank 1, when the first driving mechanism drives the first sealing plate 4 to move upward, the first sealing plate 4 moves to the top of the feed box 2 (i.e. The first sealing plate 4 will only be opened when the sliding column 8 slides in the inclined groove of the sliding groove 7 to make the first limit block 6 disengage from the first clamping block 5. Therefore, the closing of the second sealing plate 9 and the upward movement of the first sealing plate 4 can be carried out simultaneously, which can improve the feeding efficiency; the present invention can ensure that the humidity of the straw can reach an appropriate range by setting the sliding frame 3, the first sealing plate 4, the second sealing plate 9 and the water inlet pipe 13, and injecting water into the feed box 2, and at the same time, the air in the feed box 2 can be completely discharged, and the air can be prevented from entering the biogas tank 1. At the same time, the first sealing plate 4 can also cooperate with the sliding frame 3 to squeeze out the excess water in the straw raw material, which can better ensure that the moisture content of the straw raw material reaches an appropriate range (65%-70%), and the straw raw material can be better fermented in the biogas tank 1.

Claims

1. A straw biogas feeding device, comprising a biogas tank (1), characterized in that: A feed box (2) is fixedly installed on the top of the biogas tank (1), and the top and bottom ends of the feed box (2) are open; a sliding frame (3) is slidably connected inside the feed box (2), and a first sealing plate (4) is hinged on the top of the sliding frame (3); a first driving mechanism for driving the first sealing plate (4) to move is provided on the top of the biogas tank (1); a first clamping block (5) is fixedly connected to the inner wall of the first sealing plate (4), and a first limiting block (6) is slidably connected to the sliding frame (3), and the first clamping block (5) can be clamped with the first limiting block (6); a sliding groove (7) is provided on the inner wall of the feed box (2), and the sliding groove (7) is connected to the first limiting block (6). The feed box (2) is composed of an inclined groove and a vertical groove; a slide column (8) capable of sliding in the slide groove (7) is fixedly connected to the first limit block (6); a second sealing plate (9) is arranged at the bottom of the feed box (2), and a second driving mechanism capable of driving the second sealing plate (9) to move is arranged on the side; an air outlet (10) is opened on the first sealing plate (4), a first air outlet pipe (11) located outside the air outlet (10) is fixedly connected to the first sealing plate (4), and a sealing ball (12) capable of covering the air outlet (10) is elastically slidably connected in the first air outlet pipe (11); the feed box (2) is fixedly connected to a water inlet pipe (13).

2. A straw biogas feeding device according to claim 1, characterized in that: The first driving mechanism comprises a cylinder (14), the output end of the cylinder (14) being hinged to the first sealing plate (4); and the fixed end of the cylinder (14) being hinged to the biogas tank (1).

3. The straw biogas feeding device according to claim 1, characterized in that: The second driving mechanism comprises a return spring (15), a first traction rope (16) and a second clamping block (22); one end of the return spring (15) is fixedly connected to the second sealing plate (9), and the other end is fixedly connected to the methane tank (1); a fixed pulley (17), a movable pulley (18) and a steering wheel (19) are arranged on the side of the first traction rope (16); the fixed pulley (17) and the steering wheel (19) are rotatably mounted on the top of the methane tank (1); the movable pulley (18) is rotatably connected to a slider (20), and the slider (20) is slidably mounted on the top of the methane tank (1); the first traction rope (16) is fixedly connected to the top of the methane tank (1), and the other end is sequentially wound around the second sealing plate (9) and the second clamping block (22); The movable pulley (18), the fixed pulley (17), and the steering wheel (19) are fixedly connected to the second sealing plate (9); the slider (20) is fixedly connected to a second traction rope (21), and the end of the second traction rope (21) away from the slider (20) passes through the feed box (2) and is fixedly connected to the sliding frame (3); the second clamping block (22) is fixedly installed at the bottom of the second sealing plate (9), and a second limit block (23) is arranged on the side of the second clamping block (22); the second limit block (23) is elastically slidably connected to the biogas tank (1) in the vertical direction, and the second limit block (23) can limit the second sealing plate (9) and is located below the sliding frame (3).

4. The straw biogas feeding device according to claim 1, characterized in that: A three-way pipe (24) is fixedly connected to the first air outlet pipe (11), and the other two ends of the three-way pipe (24) are fixedly connected to second air outlet pipes (25); the two second air outlet pipes (25) are symmetrically arranged, and the sides are provided with blocking blocks (26) capable of sealing them, the blocking blocks (26) are elastically slidably connected to the three-way pipe (24), and the sides of the three-way pipe (24) are provided with a third driving mechanism, and the third driving mechanism is used to drive the blocking blocks (26) to open the second air outlet pipes (25).

5. The straw biogas feeding device according to claim 4, characterized in that: The third driving mechanism comprises a rack rod (27), the rack rod (27) being fixedly mounted on the top of the feed box (2), a first gear (28) being arranged on the side of the rack rod (27) and being meshed with the rack rod, a mounting block (29) being rotatably mounted on the first gear (28), the mounting block (29) being fixedly connected to the three-way pipe (24), a second gear (30) being fixedly connected to the rotating shaft of the first gear (28), the second gear (30) being meshed with two symmetrically arranged incomplete gears (31), the two incomplete gears (31) being rotatably connected to the mounting block (29), a reel (32) being fixedly connected to the rotating shaft of the two incomplete gears (31), a third traction rope (33) being wound around the reel (32), and the two third traction ropes (33) being fixedly connected to the two blocking blocks (26) at one end away from the reel (32).

6. The straw biogas feeding device according to claim 5, characterized in that: The second air outlet pipe (25) is a U-shaped pipe.

7. The straw biogas feeding device according to claim 1, characterized in that: A sealing ring is arranged on the top of the sliding frame (3).

8. The straw biogas feeding device according to claim 3, characterized in that: A roller is installed at the bottom of the slider (20).

Images