Agricultural straw recycling combustor

Abstract

The invention relates to the technical field of straw recycling, and discloses an agricultural straw recycling combustor which comprises a combustion furnace provided with a spherical shaking cavity and a plant ash opening, a shaftless screw conveyor is arranged on the outer wall of one side of the upper portion of the combustion furnace, a feeding hopper is arranged on the shaftless screw conveyor, and a lifting mechanism is arranged at the top of the combustion furnace; a rotating shaft is rotatably connected to the inner wall of the top of the combustion furnace, a first sliding sleeve is slidably connected to the outer wall of the rotating shaft, a plurality of poke rods are fixedly connected to the outer wall of the first sliding sleeve at equal intervals, the lifting mechanism can make the poke rods on the first sliding sleeve move up and down in a reciprocating mode, and a fixing ball is rotatably connected to the outer wall of the rotating shaft; and the outer wall of the fixing ball is rotationally connected with an incineration shaking plate. Through multiple linkage structures such as stirring, shaking, gas pushing and impacting, straw is fully loosened and combusted, plant ash residues are efficiently cleaned, blockage is prevented, and the combustion efficiency and stability are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of straw recycling technology, and in particular to an agricultural straw recycling burner. Background Technology

[0002] Straw is a general term for the stems and leaves (ears) of mature crops. More than half of the products of crop photosynthesis are found in straw. Straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, and is a multi-purpose renewable biological resource. The ash produced after burning straw can increase soil fertility and improve the nutrient absorption of crops.

[0003] Chinese patent publication number CN111089303A discloses an agricultural straw recycling burner, including a burner body. Symmetrical mounting blocks are fixed to the right end face of the burner body, and a rotating device is located between the mounting blocks. The rotating device includes a rotatable spline shaft, and a pickup cylinder is positioned between the mounting blocks. The rear end face of the pickup cylinder has a spline groove. The pickup device transports straw from the ground into the combustion chamber. During transport, the rotating device vibrates the pickup cylinder, removing impurities from the straw and improving the burning speed and completeness. Furthermore, the vibration device accelerates the transport of straw and the even distribution of ash during combustion. Harmful gases produced during combustion are cleaned and discharged by a treatment device, reducing environmental pollution. The burner body is freely movable, not limited by location, and operates fully automatically, making it efficient and convenient. However, during the burning process, the ash residue produced after straw combustion tends to accumulate, preventing proper distribution and requiring manual cleaning, thus affecting work efficiency.

[0004] In view of this, the present invention proposes an agricultural straw recycling burner to solve the problems existing in the prior art. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an agricultural straw recycling burner.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An agricultural straw recycling burner includes a combustion furnace with a spherical shaking chamber and a straw ash inlet. A shaftless screw conveyor is installed on the outer wall of one side of the combustion furnace, and a feed hopper is installed on the shaftless screw conveyor. A lifting mechanism is installed on the top of the combustion furnace, and a rotating shaft is rotatably connected to the inner wall of the top of the combustion furnace. A sliding sleeve is slidably connected to the outer wall of the rotating shaft, and multiple actuating rods are fixedly connected at equal intervals to the outer wall of the sliding sleeve. The lifting mechanism enables the actuating rods on the sliding sleeve to move up and down reciprocally. A fixed ball is rotatably connected to the outer wall of the rotating shaft, and a burning shaking plate is rotatably connected to the outer wall of the fixed ball. The outer wall of the burning shaking plate is rotatably connected to the inner wall of the spherical shaking chamber.

[0007] Furthermore, the lifting mechanism includes two guide pressing rods and two electric push rods. The two electric push rods are symmetrically fixedly connected to the outer wall of the combustion furnace, and the extension and retraction ends of the two electric push rods are fixedly connected to lifting pressing plates.

[0008] Furthermore, the two guide pressing rods are slidably connected to the top of the combustion furnace, and the top ends of the two guide pressing rods are fixedly connected to the lifting pressing plate. The bottom ends of the two guide pressing rods are fixedly connected to two fixed platforms, and the two fixed platforms are fixedly connected to two symmetrical actuating rods.

[0009] Furthermore, the top of the rotating shaft is provided with two pull ropes, and the bottom ends of the two pull ropes are fixedly connected to two symmetrical actuating rods. The bottom end of the rotating shaft is provided with an irregular drive ring, and a connecting post is fixedly connected between the irregular drive ring and the rotating shaft.

[0010] Furthermore, the bottom of the combustion furnace is hinged with a swing column via a torsion spring, and the outer wall of the swing column contacts the outer wall of the irregular drive ring.

[0011] Furthermore, a hollow gas storage cylinder is hinged to the inner wall of the combustion furnace, and a piston plate 2 is slidably connected to the inner wall of the hollow gas storage cylinder. A return spring is fixedly connected between the piston plate 2 and the inner wall of the hollow gas storage cylinder.

[0012] Furthermore, a sliding sleeve two is slidably connected to the outer wall of the swing column, and a push rod is slidably connected to the outer wall of the hollow gas storage cylinder facing the swing column. One end of the push rod is fixedly connected to the outer wall of the piston plate two, and the other end of the push rod is hinged to the outer wall of the sliding sleeve two.

[0013] Furthermore, the swing column is provided with an air storage chamber, and a piston plate is slidably connected inside the air storage chamber. A rocking rod is slidably connected to the top of the air storage chamber, and the bottom end of the rocking rod is fixedly connected to the outer wall of the piston plate. An air supply pipe is provided between the hollow air storage cylinder and the air storage chamber.

[0014] Furthermore, a fixed column is provided on one side of the irregular drive ring, and a sliding plate is slidably connected to the outer wall of the fixed column. An impact drive spring is fixedly connected between the sliding plate and the inner wall of the combustion furnace.

[0015] Furthermore, a lifting impact plate is provided above the fixed column, and an impact hemisphere is fixedly connected to the top of the lifting impact plate. Connecting plates are hinged between the bottom outer wall of the lifting impact plate and the inner wall of the combustion furnace and the top outer wall of the slide plate.

[0016] The beneficial effects of this invention are as follows: Through a multi-linked structure involving plucking, shaking, gas propulsion, and impact, the straw is fully loosened and burned, and the ash residue is efficiently cleared and prevented from clogging, greatly improving combustion efficiency and stability. Attached Figure Description

[0017] Figure 1 A schematic diagram of an agricultural straw recycling burner; Figure 2 A schematic diagram of the internal structure of a combustion furnace in an agricultural straw recycling burner; Figure 3 A schematic diagram of the outer wall structure of the rotating shaft of an agricultural straw recycling burner; Figure 4 A schematic diagram of the swing column and hollow gas storage cylinder structure of an agricultural straw recycling burner; Figure 5 A schematic diagram of the cross-sectional structure of a swing column in an agricultural straw recycling burner; Figure 6 A schematic diagram of the cross-sectional structure of a hollow gas storage cylinder for an agricultural straw recycling burner; Figure 7 This is a schematic diagram of the outer wall structure of the fixed column of an agricultural straw recycling burner.

[0018] In the diagram: 1. Combustion furnace; 2. Spherical shaking chamber; 3. Shaftless screw conveyor; 4. Feed hopper; 5. Lifting and pressing plate; 6. Guide pressing rod; 7. Electric push rod; 8. Ash inlet; 9. Fixed column; 10. Slide plate; 11. Incineration shaking plate; 12. Rotating shaft; 13. Swinging column; 14. Hollow gas storage cylinder; 15. Irregular drive ring; 16. Fixed ball; 17. Sliding sleeve one; 18. Actuating rod; 19. Pull rope; 20. Fixed platform; 21. Connecting column; 22. Sliding sleeve two; 23. Gas pipe; 24. Gas storage chamber; 25. Shaking rod; 26. Piston plate one; 27. Push rod; 28. Piston plate two; 29. ​​Return spring; 30. Impact drive spring; 31. Connecting plate; 32. Lifting impact plate; 33. Impact hemisphere. Detailed Implementation

[0019] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0020] Reference Figures 1-3 An agricultural straw recycling burner includes a combustion furnace 1 with a spherical shaking chamber 2 and a straw ash inlet 8. A shaftless screw conveyor 3 is installed on one outer wall of the upper part of the combustion furnace 1, and a feed hopper 4 is installed on the shaftless screw conveyor 3. A lifting mechanism is installed at the top of the combustion furnace 1, and a rotating shaft 12 is rotatably connected to the inner wall of the top of the combustion furnace 1. A sliding sleeve 17 is slidably connected to the outer wall of the rotating shaft 12, and multiple actuating rods 18 are fixedly connected at equal intervals to the outer wall of the sliding sleeve 17. The lifting mechanism enables the actuating rods 18 on the sliding sleeve 17 to move up and down reciprocally. A fixed ball 16 is rotatably connected to the outer wall of the rotating shaft 12, and a burning shaking plate is rotatably connected to the outer wall of the fixed ball 16. 11. The outer wall of the burning shaking plate 11 is rotatably connected to the inner wall of the spherical shaking cavity 2. The straw is fed into the shaftless screw conveyor 3 through the feed hopper 4. Then the shaftless screw conveyor 3 feeds the straw into the combustion furnace 1. The straw fed into the combustion furnace 1 will fall onto the burning shaking plate 11. During this process, the straw on the burning shaking plate 11 will be burned. At the same time, the lifting mechanism is activated, which can make the actuating rod 18 on the sliding sleeve 17 move up and down, thereby breaking up the straw coming down from the shaftless screw conveyor 3 and making it fluffy, thereby greatly increasing the contact area between the straw and oxygen, thus promoting more complete and more intense combustion.

[0021] Reference Figure 1 As a further embodiment of the present invention, the lifting mechanism includes two guide pressing rods 6 and two electric push rods 7. The two electric push rods 7 are symmetrically fixedly connected to the outer wall of the combustion furnace 1, and the extension ends of the two electric push rods 7 are fixedly connected to the lifting pressing plate 5. The electric push rods 7 can make the lifting pressing plate 5 move up and down reciprocally.

[0022] Reference Figure 1 , Figure 2 and Figure 3 As a further embodiment of the present invention, two guide pressing rods 6 are slidably connected to the top of the combustion furnace 1, and the top ends of the two guide pressing rods 6 are fixedly connected to the lifting pressing plate 5. The bottom ends of the two guide pressing rods 6 are fixedly connected to two fixed platforms 20, and the two fixed platforms 20 are fixedly connected to two symmetrical actuating rods 18. In this process, the lifting pressing plate 5 can make the actuating rods 18 on the sliding sleeve 17 move up and down reciprocally through the guide pressing rods 6 connected to it.

[0023] Reference Figure 3As a further embodiment of the present invention, two pull ropes 19 are provided at the top of the rotating shaft 12, and the bottom ends of the two pull ropes 19 are fixedly connected to two symmetrical actuating rods 18. An irregular drive ring 15 is provided at the bottom of the rotating shaft 12, and a connecting post 21 is fixedly connected between the irregular drive ring 15 and the rotating shaft 12. The two pull ropes 19 are respectively wound around the outer wall of the rotating shaft 12. When the lifting mechanism is started and the actuating rod 18 on the sliding sleeve 17 moves up and down, when the actuating rod 18 moves down, it can loosen the pull ropes 19 wound around the outer wall of the rotating shaft 12, thereby causing the rotating shaft 12 to rotate. When the actuating rod 18 moves up, the loosened pull ropes 19 will rewrap around the rotating shaft 12, repeating the cycle, thereby enabling the rotating shaft 12 to rotate continuously.

[0024] Reference Figure 2 As a further embodiment of the present invention, the bottom of the combustion furnace 1 is hinged with a swing column 13 by a torsion spring, and the outer wall of the swing column 13 is in contact with the outer wall of the irregular drive ring 15. When the rotating shaft 12 rotates, it will drive the irregular drive ring 15 at its bottom to rotate. Because the outer wall of the swing column 13 is in contact with the outer wall of the irregular drive ring 15, the swing column 13 will swing when the irregular drive ring 15 rotates. During the swinging process, the top of the swing column 13 will contact the bottom of the incineration shaking plate 11, thereby causing the incineration shaking plate 11 to shake, thus preventing the accumulation of wood ash on the incineration shaking plate 11.

[0025] Working principle: The straw is fed into the shaftless screw conveyor 3 through the feed hopper 4, and then the shaftless screw conveyor 3 feeds the straw into the combustion furnace 1. The straw fed into the combustion furnace 1 will fall onto the burning shaking plate 11. During this process, the straw on the burning shaking plate 11 will be burned. At the same time, the electric push rod 7 can make the lifting pressing plate 5 move up and down back and forth. The lifting pressing plate 5, through the guide pressing rod 6 connected to it, can make the actuating rod 18 on the sliding sleeve 17 move up and down back and forth, thereby breaking up the straw that comes down from the shaftless screw conveyor 3, making it fluffy, thereby greatly increasing the contact area between the straw and oxygen, thus promoting more complete and more intense combustion. During the process of the lifting mechanism starting and the actuating rod 18 on the sliding sleeve 17 moving up and down, when the actuating rod 18 moves downward, it can loosen the pulling rope 19 wrapped around the outer wall of the rotating shaft 12, thereby causing the rotating shaft 12 to rotate. When the actuating rod 18 moves upward, the loosened pulling rope 19 will be rewound onto the rotating shaft 12, and the cycle will repeat, so that the rotating shaft 12 can rotate continuously. When the rotating shaft 12 rotates, it will drive the irregular drive ring 15 at its bottom to rotate. Because the outer wall of the swing column 13 is in contact with the outer wall of the irregular drive ring 15, the rotation of the irregular drive ring 15 will cause the swing column 13 to swing. During the swinging process, the top of the swing column 13 will contact the bottom of the incineration shaking plate 11, thereby causing the incineration shaking plate 11 to shake, thus preventing the accumulation of grass and wood ash on the incineration shaking plate 11.

[0026] Reference Figure 2 and Figure 6 As a further embodiment of the present invention, a hollow gas storage cylinder 14 is hinged to the inner wall of the combustion furnace 1, and a piston plate 28 is slidably connected to the inner wall of the hollow gas storage cylinder 14. A return spring 29 is fixedly connected between the piston plate 28 and the inner wall of the hollow gas storage cylinder 14.

[0027] Reference Figure 4 , Figure 5 and Figure 6 As a further embodiment of the present invention, a sliding sleeve 22 is slidably connected to the outer wall of the swing column 13, and a push rod 27 is slidably connected to the outer wall of the hollow gas storage cylinder 14 facing the swing column 13. One end of the push rod 27 is fixedly connected to the outer wall of the piston plate 28, and the other end of the push rod 27 is hinged to the outer wall of the sliding sleeve 22. During the swinging process of the swing column 13, the piston plate 28 in the hollow gas storage cylinder 14 can be moved by the push rod 27.

[0028] Reference Figure 4 and Figure 5 As a further embodiment of the present invention, a gas storage chamber 24 is provided inside the swing column 13, and a piston plate 26 is slidably connected inside the gas storage chamber 24. A rocking rod 25 is slidably connected to the top of the gas storage chamber 24, and the bottom end of the rocking rod 25 is fixedly connected to the outer wall of the piston plate 26. A gas supply pipe 23 is provided between the hollow gas storage cylinder 14 and the gas storage chamber 24. When the piston plate 28 compresses the return spring 29 and moves, the gas stored in the hollow gas storage cylinder 14 is squeezed into the gas supply pipe 23. Then the gas in the gas supply pipe 23 enters the gas storage chamber 24 of the swing column 13, and then pushes the piston plate 26 in the gas storage chamber 24 to move upward, so that the length of the rocking rod 25 extends longer, thereby increasing the amplitude of the rocking plate 11 in the spherical rocking chamber 2, fully dispersing the ash on the rocking plate 11, so that it falls to the bottom of the combustion furnace 1 through the rocking plate 11, greatly improving the combustion effect.

[0029] Reference Figure 2 and Figure 7 As a further embodiment of the present invention, a fixed post 9 is provided on one side of the irregular drive ring 15, and a sliding plate 10 is slidably connected to the outer wall of the fixed post 9. An impact drive spring 30 is fixedly connected between the sliding plate 10 and the inner wall of the combustion furnace 1. During the rotation of the irregular drive ring 15, its outer wall will contact the sliding plate 10 and push the sliding plate 10 to compress the impact drive spring 30 and move.

[0030] Reference Figure 7 As a further embodiment of the present invention, a lifting impact plate 32 is provided above the fixed column 9, and an impact hemisphere 33 is fixedly connected to the top of the lifting impact plate 32. A connecting plate 31 is hinged between the bottom outer wall of the lifting impact plate 32 and the inner wall of the combustion furnace 1 and the top outer wall of the slide plate 10. At this time, under the action of the connecting plate 31, the lifting impact plate 32 can move downward. When the outer wall of the irregular drive ring 15 does not contact the outer wall of the slide plate 10, under the action of the rebound force of the impact drive spring 30, the lifting impact plate 32 can quickly move upward with the impact hemisphere 33, thereby striking the incineration shaking plate 11 and causing it to vibrate, thus preventing the ash from falling from the incineration shaking plate 11 and causing blockage.

[0031] Working principle: During the swinging process, the swing column 13 can move the piston plate 28 in the hollow gas storage cylinder 14 through the push rod 27. When the piston plate 28 moves to compress the return spring 29, the gas stored in the hollow gas storage cylinder 14 is squeezed into the gas supply pipe 23. Then the gas in the gas supply pipe 23 enters the gas storage chamber 24 of the swing column 13, which then pushes the piston plate 26 in the gas storage chamber 24 to move upward, making the extension length of the swing rod 25 longer. This increases the amplitude of the swing of the incineration swing plate 11 in the spherical swing chamber 2, which fully disperses the ash on the incineration swing plate 11, allowing it to fall to the bottom of the combustion furnace 1, greatly improving the combustion effect. Furthermore, during the rotation of the irregular drive ring 15, its outer wall will contact the slide plate 10 and push the slide plate 10 to compress the impact drive spring 30 to move. At this time, under the action of the connecting plate 31, the lifting impact plate 32 can move downward. When the outer wall of the irregular drive ring 15 does not contact the outer wall of the slide plate 10, under the action of the rebound force of the impact drive spring 30, the lifting impact plate 32 can quickly move upward with the impact hemisphere 33, thereby striking the incineration shaking plate 11 and causing it to vibrate, thus preventing the ash from falling from the incineration shaking plate 11 and causing blockage.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An agricultural straw recycling burner, comprising a combustion furnace (1) having a spherical shaking chamber (2) and a straw ash inlet (8), wherein a shaftless screw conveyor (3) is provided on one side of the outer wall above the combustion furnace (1), and a feed hopper (4) is provided on the shaftless screw conveyor (3), characterized in that, The combustion furnace (1) is provided with a lifting mechanism at the top, and a rotating shaft (12) is rotatably connected to the inner wall of the top of the combustion furnace (1). A sliding sleeve (17) is slidably connected to the outer wall of the rotating shaft (12), and multiple actuating rods (18) are fixedly connected at equal distances to the outer wall of the sliding sleeve (17). The lifting mechanism enables the actuating rods (18) on the sliding sleeve (17) to move up and down reciprocally. A fixed ball (16) is rotatably connected to the outer wall of the rotating shaft (12), and a combustion shaking plate (11) is rotatably connected to the outer wall of the fixed ball (16). The outer wall of the combustion shaking plate (11) is rotatably connected to the inner wall of the ball shaking cavity (2).

2. The agricultural straw recycling burner according to claim 1, characterized in that, The lifting mechanism includes two guide pressing rods (6) and two electric push rods (7). The two electric push rods (7) are symmetrically fixedly connected to the outer wall of the combustion furnace (1), and the extension and retraction ends of the two electric push rods (7) are fixedly connected to lifting pressing plates (5).

3. An agricultural straw recycling burner according to claim 2, characterized in that, The two guide pressing rods (6) are slidably connected to the top of the combustion furnace (1), and the top of the two guide pressing rods (6) is fixedly connected to the lifting pressing plate (5). The bottom of the two guide pressing rods (6) is fixedly connected to two fixed platforms (20), and the two fixed platforms (20) are fixedly connected to two symmetrical toggle rods (18).

4. An agricultural straw recycling burner according to claim 1, characterized in that, The top of the rotating shaft (12) is provided with two pull ropes (19), and the bottom ends of the two pull ropes (19) are fixedly connected to two symmetrical levers (18). The bottom end of the rotating shaft (12) is provided with an irregular drive ring (15), and a connecting post (21) is fixedly connected between the irregular drive ring (15) and the rotating shaft (12).

5. An agricultural straw recycling burner according to claim 4, characterized in that, The bottom of the combustion furnace (1) is hinged with a swing column (13) by a torsion spring, and the outer wall of the swing column (13) is in contact with the outer wall of the irregular drive ring (15).

6. An agricultural straw recycling burner according to claim 5, characterized in that, The inner wall of the combustion furnace (1) is hinged with a hollow gas storage cylinder (14), and the inner wall of the hollow gas storage cylinder (14) is sealed and slidably connected with a piston plate (28). A return spring (29) is fixedly connected between the piston plate (28) and the inner wall of the hollow gas storage cylinder (14).

7. An agricultural straw recycling burner according to claim 6, characterized in that, The outer wall of the swing column (13) is slidably connected to the sliding sleeve (22), and the outer wall of the hollow gas storage cylinder (14) facing the swing column (13) is slidably connected to the push rod (27). One end of the push rod (27) is fixedly connected to the outer wall of the piston plate (28), and the other end of the push rod (27) is hinged to the outer wall of the sliding sleeve (22).

8. An agricultural straw recycling burner according to claim 7, characterized in that, The swing column (13) is provided with an air storage chamber (24), and a piston plate (26) is slidably connected inside the air storage chamber (24). A rocking rod (25) is slidably connected to the top of the air storage chamber (24), and the bottom end of the rocking rod (25) is fixedly connected to the outer wall of the piston plate (26). A gas supply pipe (23) is provided between the hollow air storage cylinder (14) and the air storage chamber (24).

9. An agricultural straw recycling burner according to claim 5, characterized in that, A fixed column (9) is provided on one side of the irregular drive ring (15), and a sliding plate (10) is slidably connected to the outer wall of the fixed column (9). An impact drive spring (30) is fixedly connected between the sliding plate (10) and the inner wall of the combustion furnace (1).

10. An agricultural straw recycling burner according to claim 9, characterized in that, A lifting impact plate (32) is provided above the fixed column (9), and an impact hemisphere (33) is fixedly connected to the top of the lifting impact plate (32). A connecting plate (31) is hinged between the bottom outer wall of the lifting impact plate (32), the inner wall of the combustion furnace (1), and the top outer wall of the slide plate (10).

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