Biomass pyrolysis gasification device

Abstract

The present application relates to pyrolysis device technical field, especially to a kind of biomass pyrolysis gasification device, including microwave heating reactor, pretreatment mechanism and driving mechanism, pretreatment mechanism bag cutting reamer, cutting reamer can push material to gather to center during cutting, driving mechanism is used to drive cylinder to rotate around its horizontal axis and vertical center line, so that the material in the cylinder and cutting reamer are in full contact, while the material gathered to center is dispersed outward to make the material in the cylinder repeatedly dispersed and gathered;The present application utilizes cutting reamer with angle to transport the material entering the cylinder to the central part of the cylinder, while the driving mechanism drives the cylinder to perform horizontal rotation movement, so that the material entering the cylinder can be thrown away from both ends of the cylinder under the action of centrifugal force, thus enabling the material to be repeatedly dispersed and gathered in the pretreatment mechanism, thereby achieving a more perfect and comprehensive crushing processing effect.

Description

Technical Field

[0001] This invention relates to the field of pyrolysis equipment technology, and more particularly to a biomass pyrolysis gasification device. Background Technology

[0002] Biomass pyrolysis gasification refers to the process of heating biomass, such as crop straw, forestry waste, and livestock manure, to a high temperature under anaerobic or limited oxygen conditions, causing it to undergo a thermochemical reaction and be converted into products such as combustible gas, biochar, and tar.

[0003] In existing technologies, biomass pyrolysis gasification requires adding biomass materials into a reaction vessel for pyrolysis gasification. Before adding biomass into the reaction vessel, the biomass materials usually need to undergo preliminary treatment. However, existing preliminary treatment operations often involve simply crushing the biomass materials, which cannot perform more comprehensive and complete crushing and processing. Therefore, the pyrolysis gasification reaction of the biomass materials is prone to being incomplete. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: in order to overcome the problem that the preliminary processing of biomass materials in the prior art often involves simply crushing the biomass materials, which cannot carry out more comprehensive and perfect crushing and processing of the biomass materials, thus easily leading to insufficient pyrolysis and gasification reaction of the biomass materials, a biomass pyrolysis and gasification device is provided.

[0005] The technical solution adopted by this invention to solve its technical problem is: a biomass pyrolysis gasification device, comprising:

[0006] A microwave-heated reactor, which has an internal reaction chamber for heating materials to produce a reaction.

[0007] The pretreatment mechanism includes a cylinder, on which rotating shafts are rotatably connected to both ends of the cylinder along its axial direction. Cutting cutters are evenly distributed on the two rotating shafts, and the cutting cutters can push the material toward the center during cutting.

[0008] The device includes a drive mechanism connected between the microwave heating reactor and the pretreatment mechanism, which drives the cylinder to rotate around its horizontal axis and vertical center line, so that the material inside the cylinder can fully contact the cutting reamer, while dispersing the material that is gathering towards the center outward so that the material inside the cylinder can be repeatedly dispersed and gathered.

[0009] Furthermore, the driving mechanism includes a carrier fixedly installed on the outer wall of the upper end of the microwave heating reactor and a carrier plate rotatably connected to the upper end of the carrier. The carrier plate is equipped with supports at both ends, and the cylinder is rotatably installed between the two supports.

[0010] Furthermore, the carrier disk has a toothed groove, and an open groove is provided on one side of the carrier base. A transmission gear is provided in the open groove, and the transmission gear meshes with the toothed groove to drive the carrier disk to rotate around its vertical center line.

[0011] Furthermore, it also includes a heat dissipation mechanism located at the outlet of the microwave-heated reactor to cool the material.

[0012] Furthermore, the heat dissipation mechanism includes a support base fixed to the bottom of the microwave heating reactor, an annular seat mounted on the support base, and a plurality of blades slidably mounted on the annular seat circumferentially.

[0013] Furthermore, each blade is rotatably mounted on a sliding seat via a rotating rod, and a carrier plate extends from the sliding seat toward the center of the ring seat. A drive motor is fixedly mounted on the carrier plate, and a worm is fixedly connected to the transmission output end of the drive motor. A drive gear seat is fixedly connected to the bottom end of the worm. The ring seat is an annular toothed ring that meshes with the drive gear seat, and a worm wheel that meshes with the worm is fixedly mounted on the rotating rod.

[0014] Furthermore, a central shaft is fixedly connected to the axial center of both ends of the cylinder. The two central shafts correspond one-to-one with the two supports, and each central shaft is mounted on its corresponding support. One of the central shafts is connected to the rotary motor drive.

[0015] The cylinder is also fixedly installed with multiple support rods on the outer periphery of the central axis, and the bracket is provided with slide rails for the support rods to slide.

[0016] Furthermore, the end of the support rod protrudes towards the bracket to form a limiting part, and the slide rail has a T-shaped structure that matches the cross-section of the support rod.

[0017] Furthermore, the pretreatment mechanism also includes a transmission cover connected between the central shaft and the cylinder, and a cutting motor is installed inside the transmission cover. There are two cutting motors, each corresponding to one of the two rotating shafts.

[0018] Furthermore, the bottom end of the sliding seat protrudes to form a T-shaped structure, and the ring seat has a T-shaped groove for the sliding seat to be inserted.

[0019] The beneficial effects of this invention are:

[0020] 1. This invention uses symmetrically arranged cutting augers within the pretreatment mechanism to pulverize the biomass material entering the cylinder. Simultaneously, the angled cutting augers transport the biomass material towards the center of the cylinder during pulverization. The drive mechanism simultaneously rotates the cylinder horizontally, causing the material to be processed within the cylinder to be thrown away towards both ends under centrifugal force. In this operating mode, the centrifugal force generated by the horizontal rotation of the pretreatment mechanism and the material transport force generated by the high-speed rotation of the cutting auger alternately increase and decrease, allowing the material to undergo repeated dispersion and aggregation within the pretreatment mechanism, thus achieving a more complete and comprehensive pulverization effect. Furthermore, the cylinder can rotate axially around its horizontal axis, allowing the material inside the cylinder to have more thorough contact with the cutting auger during pulverization, further improving the pretreatment effect.

[0021] 2. This invention incorporates a heat dissipation mechanism. A drive motor drives a worm gear to rotate a drive gear seat. Because the drive gear seat and the inner ring teeth of the ring seat mesh, the drive gear seat can rotate around the ring seat. Simultaneously, it drives the sliding seat to slide along the sliding groove in a ring shape. Furthermore, due to the meshing connection between the worm gear and the worm wheel, the worm wheel can transmit the power of the worm gear to the rotating rod, allowing the rotating rod to drive the blades to rotate. This process can cool the biomass material discharged from the microwave-heated reactor for subsequent transfer and utilization. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a perspective view of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the exploded structure of the pretreatment mechanism and the drive mechanism;

[0025] Figure 3 This is a cross-sectional view of the internal structure of the pretreatment mechanism;

[0026] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figure 5 This is a schematic diagram of the internal structure of the pretreatment mechanism;

[0028] Figure 6 This is a schematic diagram showing the connection between the cutting motor and the rotating shaft;

[0029] Figure 7 This is a schematic diagram showing the positional relationship between the support base and the heat dissipation mechanism;

[0030] Figure 8 for Figure 7 Enlarged structural diagram at point B.

[0031] In the picture:

[0032] 1. Support base;

[0033] 2. Microwave-heated reactor;

[0034] 3. Pre-treatment mechanism; 31. Cylinder; 32. Rotating shaft; 33. Cutting auger; 34. Cutting motor; 35. Opening; 36. Closing door;

[0035] 4. Drive mechanism; 41. Carrier; 42. Carrier plate; 43. Gear groove; 44. Open slot; 45. Transmission gear; 46. Outer plate; 47. Bracket; 48. Slide rail; 49. Support rod; 410. Slide block; 411. Transmission cover; 412. Central shaft; 413. Rotary motor;

[0036] 5. Heat dissipation mechanism; 51. Ring seat; 52. Slide groove; 53. Tooth; 54. Sliding seat; 55. Carrier plate; 56. Drive motor; 57. Worm; 58. Drive gear seat; 59. Rotary rod; 510. Worm wheel; 511. Blade fan. Detailed Implementation

[0037] The invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention in a schematic manner. Therefore, they only show the components relevant to the invention, and directions and references, such as up, down, left, right, etc., are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0038] Example 1:

[0039] like Figures 1-3 As shown, the present invention is a biomass pyrolysis gasification device, comprising:

[0040] The microwave-heated reactor 2 has an internal reaction chamber for heating materials to react, an inlet and an outlet connected to the reaction chamber;

[0041] The pretreatment mechanism 3 includes a horizontally placed cylinder 31. An opening 35 for material entry or exit is formed in the middle of the cylinder 31. A closing door 36 is hinged to the opening 35 to control the opening and closing of the cylinder 31, so as to control the entry and exit of materials. Rotating shafts 32 are rotatably connected to the two side walls of the cylinder 31 along its axial direction. Multiple cutting blades 33 are evenly distributed on the two rotating shafts 32. During the rotation of the cutting blades 33, the biomass material entering the cylinder 31 can be crushed and processed. The cutting blades 33 are angled and symmetrically distributed, and can push the material to gather towards the center during cutting.

[0042] And the drive mechanism 4, which is connected between the microwave heating reactor 2 and the pretreatment mechanism 3 and is used to drive the cylinder 31 to rotate around its horizontal axis and vertical center line. When rotating around the horizontal axis, the material in the cylinder 31 can fully contact the cutting reamer. When rotating around the vertical center line, the material that gathers towards the center can be dispersed outward so that the material in the cylinder 31 can be repeatedly dispersed and gathered.

[0043] First, the cylinder 31 is rotated around its horizontal axis until the opening 35 faces upwards. The closing door 36 is then opened, and materials are fed in. After feeding, the closing door 36 is closed. Then, the cutting auger 33 operates to crush the biomass material entering the cylinder 31. Because the cutting auger 33 has an angle, it acts like an auger during high-speed operation, thus transporting the biomass material into the cylinder 31 towards its center during crushing. Simultaneously, the drive mechanism 4 rotates the cylinder 31 around its vertical centerline for horizontal rotation, allowing the material entering the cylinder 31 for processing to... Under the action of centrifugal force, the material is thrown away to both ends inside the cylinder 31. In this working mode, the centrifugal force generated by the drive mechanism 4 driving the pretreatment mechanism 3 to rotate horizontally and the material conveying force generated by the high-speed operation of the cutting auger 33 can alternately increase and decrease. Therefore, the material can be repeatedly dispersed and gathered in the pretreatment mechanism 3, thereby achieving a more complete and comprehensive crushing effect. In addition, the cylinder 31 can rotate axially around its horizontal axis, so that the material inside the cylinder 31 can have more full contact with the cutting auger 33 during the crushing process, thereby further improving the pretreatment effect.

[0044] In some examples, such as Figure 2 As shown, the driving mechanism 4 includes a carrier 41 fixedly installed on the outer wall of the upper end of the microwave heating reactor 2 and a carrier plate 42 rotatably connected to the upper end of the carrier 41. The two ends of the carrier plate 42 extend to form an outer plate 46, and a bracket 47 is fixedly installed on the outer plate. The cylinder 31 is rotatably installed between the two brackets 47 to achieve its own rotation around the horizontal axis. At the same time, when the carrier plate 42 rotates, it can drive the cylinder 31 to rotate around the vertical center line.

[0045] In some examples, such as Figure 2 As shown, the carrier 42 has a toothed groove 43, and the carrier 41 has an open groove 44 on one side, that is, the carrier 41 has a C-shaped structure. A transmission gear 45 is provided in the open groove 44. The transmission gear 45 meshes with the toothed groove 43 to drive the carrier 42 to rotate around its vertical center line. The power source of the transmission gear 45 can be connected to an external power source through the transmission component below it to drive the transmission gear 45 to rotate, so that the transmission gear 45 can drive the carrier 42 to rotate.

[0046] In some examples, such as Figure 1 As shown, it also includes a heat dissipation mechanism 5 located at the outlet of the microwave heating reactor 2 to cool the material. After the material is heated and reacted in the microwave heating reactor 2, it is discharged from the outlet. During the discharge process, the temperature is still high, which is not conducive to subsequent transfer and utilization. The heat dissipation mechanism 5 is set at the outlet to cool the material quickly.

[0047] In some examples, such as Figure 7 and Figure 8 As shown, the heat dissipation mechanism 5 includes a support base 1 fixed to the bottom of the microwave heating reactor 2, an annular seat 501 mounted on the support base 1, and a plurality of blades 511 slidably mounted on the annular seat 501 circumferentially. The number of blades 511 can be, but is not limited to, one, two, or three, etc. The number of support bases 1 is at least two, and they are distributed at intervals along the circumference of the microwave heating reactor 2. The blades 511 can first rotate to dissipate heat from the material, and at the same time, they can "revolve" along the annular seat 501, thereby cooling the material discharged from the outlet in all directions.

[0048] In some examples, such as Figure 8As shown, each blade 511 is rotatably mounted on a sliding seat 54 via a rotating rod 59. One end of the rotating rod 59 is rotatably connected to the sliding seat 54, and the other end is fixed to the blade 511. A carrier plate 55 extends from the sliding seat 54 towards the center of the ring seat 501. A drive motor 56 is fixedly mounted on the carrier plate 55. A worm gear 57 is fixedly connected to the transmission output end of the drive motor 56. A drive gear seat 58 is fixedly connected to the bottom end of the worm gear 57. The ring seat 501 is an annular toothed ring that meshes with the drive gear seat 58. The inner circumferential wall of the ring seat has multiple teeth 53 spaced circumferentially. A worm wheel 510 that meshes with the worm gear 57 is fixedly mounted in the middle of the rotating rod 59. In this embodiment, the drive motor 56 can... The worm gear 57 drives the drive gear seat 58 to rotate. Since the drive gear seat 58 meshes with the teeth 53 on the inner wall of the ring seat 501, the rotating drive gear seat 58 will move along the inner wall of the ring seat 501, and at the same time drive the sliding seat 54, the carrier plate 55 and the drive motor 56 to move simultaneously. During this period, since the worm wheel 510 meshes with the worm gear 57, the rotating worm gear 57 can transmit power to the worm wheel 510, so that the rotating rod 59 can rotate under the power transmission of the worm wheel 510, thereby driving the blade fan 511 to rotate, promoting the surrounding air flow, generating wind, and cooling the biomass material discharged from the microwave heating reactor 2 for subsequent transfer and utilization.

[0049] In some examples, such as Figure 2 and Figure 3 As shown, a central shaft 412 is fixedly connected to the axial center of both ends of the cylinder 31. The two central shafts 412 correspond one-to-one with two supports 47, and each central shaft 412 is mounted on its corresponding support 47. Each support 47 has a through hole for the corresponding central shaft 412 to pass through. One of the central shafts 412 is connected to a rotary motor 413. The rotary motor 413 drives the cylinder 31 to rotate around the horizontal axis through the central shaft 412, thereby achieving the effect of turning over the biomass material inside the cylinder 31. This allows the biomass material to have more full contact with the cutting auger 33 during the cutting and crushing process, thereby further improving the pretreatment processing effect.

[0050] like Figures 2-4 As shown, a plurality of support rods 49 are fixedly installed on the outer periphery of the cylinder 31 located on the central axis 412. The number of support rods 49 can be, but is not limited to, two, three or four. The bracket 47 is provided with a slide rail 48 for the support rods 49 to slide. The slide rail 48 is a ring track. The support rods 49 and the slide rail 48 cooperate to provide auxiliary support for the rotational movement of the cylinder 31 around its horizontal axis, ensuring the stability of its rotational movement.

[0051] In some examples, such as Figures 2-4 As shown, the end of the support rod 49 protrudes towards the bracket 47 to form a limiting part, thus forming a T-shaped support rod 49. The slide rail 48 has a T-shaped cross-section that matches the cross-section of the support rod 49. The T-shaped slide rail 48 can confine the limiting part inside to improve the connection strength between the two, thereby preventing the cylinder 31 from unexpectedly separating from the bracket 47 during rotation.

[0052] In some examples, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the pretreatment mechanism 3 also includes a transmission cover 411 connected between the central shaft 412 and the cylinder 31. A cutting motor 34 is installed inside the transmission cover 411. There are two cutting motors 34, each corresponding to one of the two rotating shafts 32. Each cutting motor 34 drives its corresponding rotating shaft 32 to rotate, and the rotating shaft 32 drives its corresponding cutting auger 33 to rotate and cut. In this embodiment, the power of the central shaft 412 can be transmitted to the cylinder 31 through the transmission cover 411. At the same time, it is located at the connection point between the central shaft 412 and the cylinder 31 on the axis, so that the cutting motor 34 can be accommodated. The cutting motor 34 can be used as a power source to drive the rotating shaft 32 and the cutting auger 33 to perform flexible and controllable rotational movement on the axis, so as to meet the controllable adjustment effect of the operating speed of the cutting auger 33.

[0053] In some examples, such as Figure 8 As shown, the bottom end of the sliding seat 54 protrudes to form a T-shaped structure. The ring seat 501 has a T-shaped groove 52 for the sliding seat 54 to be inserted. The T-shaped groove 52 can provide a limiting effect for the sliding displacement of the sliding seat 54 to prevent tipping. At the same time, a counterweight is also installed on the side wall of the sliding seat 54 away from the carrier plate 55. The counterweight is used to increase the weight on the other side of the sliding seat 54, so that the force on the sliding seat 54 is more balanced and its stability during operation is ensured.

[0054] Working principle:

[0055] First, the cylinder 31 is rotated around its horizontal axis until the opening 35 faces upwards. The closing door 36 is then opened, and materials are fed in. After feeding, the closing door 36 is closed. Then, the cutting auger 33 operates to crush the biomass material entering the cylinder 31. Because the cutting auger 33 has an angle, it acts like an auger during high-speed operation, thus transporting the biomass material into the cylinder 31 towards its center during crushing. Simultaneously, the drive mechanism 4 rotates the cylinder 31 around its vertical centerline for horizontal rotation, allowing the material entering the cylinder 31 for processing to... Under the action of centrifugal force, the material is thrown away to both ends inside the cylinder 31. In this working mode, the centrifugal force generated by the drive mechanism 4 driving the pretreatment mechanism 3 to rotate horizontally and the material conveying force generated by the high-speed operation of the cutting auger 33 can alternately increase and decrease. Therefore, the material can be repeatedly dispersed and gathered in the pretreatment mechanism 3, thereby achieving a more perfect and comprehensive crushing effect. In addition, the cylinder 31 can rotate axially around its horizontal axis, so that the material inside the cylinder 31 can have more full contact with the cutting auger 33 during the crushing process, thereby further improving the pretreatment effect.

[0056] After pretreatment, the cylinder 31 is rotated around the horizontal axis until the opening 35 faces downwards, and the sealing door 36 is opened. The material enters the reaction chamber of the microwave heating reactor 2 through the opening 35 for heating and thermochemical reaction. After the reaction is completed, the drive motor 56 is started. The drive motor 56 drives the drive gear seat 58 to rotate through the worm 57, and at the same time drives the sliding seat 54, the carrier plate 55 and the drive motor 56 to move simultaneously. Meanwhile, the rotating worm 57 can transmit power to the worm wheel 510. The rotating rod 59 rotates under the power transmission of the worm wheel 510, thereby driving the blade fan 511 to rotate. Finally, the outlet of the microwave heating reactor 2 is opened, and the material is discharged from the outlet. The blade fan 511 cools the biomass material discharged from the microwave heating reactor 2 for subsequent transfer and utilization.

[0057] The above description, based on the preferred embodiments of the present invention, provides inspiration. Those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification but must be determined according to the claims.

Claims

1. A biomass pyrolysis gasification device, characterized in that: include: Microwave heating reactor (2), which has a reaction chamber inside which heats the material to produce a reaction; The pretreatment mechanism (3) includes a cylinder (31), on which rotating shafts (32) are rotatably connected to both ends of the cylinder (31) along its axial direction. Cutting cutters (33) are evenly distributed on the two rotating shafts (32), and the cutting cutters (33) can push the material to gather towards the center during cutting. The drive mechanism (4) is connected between the microwave heating reactor (2) and the pretreatment mechanism (3) and is used to drive the cylinder (31) to rotate around its horizontal axis and vertical center line so that the material inside the cylinder (31) can fully contact the cutting reamer. At the same time, the cylinder (31) rotating around the vertical center line causes the internal material to be thrown away from both ends of the cylinder (31) under the action of centrifugal force, so as to disperse the material gathered towards the center outward and make the material inside the cylinder (31) repeatedly disperse and gather.

2. The biomass pyrolysis gasification device according to claim 1, characterized in that: The driving mechanism (4) includes a carrier (41) fixedly installed on the outer wall of the upper end of the microwave heating reactor (2) and a carrier plate (42) rotatably connected to the upper end of the carrier (41). The carrier plate (42) is equipped with brackets (47) at both ends, and the cylinder (31) is rotatably installed between the two brackets (47).

3. The biomass pyrolysis gasification device according to claim 2, characterized in that: The carrier (42) has a toothed groove (43), and the carrier (41) has an open groove (44) on one side. A transmission gear (45) is provided in the open groove (44). The transmission gear (45) meshes with the toothed groove (43) to drive the carrier (42) to rotate around its vertical center line.

4. The biomass pyrolysis gasification device according to claim 1, characterized in that: It also includes a heat dissipation mechanism (5) located at the outlet of the microwave-heated reactor (2) to cool the material.

5. A biomass pyrolysis gasification device according to claim 4, characterized in that: The heat dissipation mechanism (5) includes a support base (1) fixed to the bottom of the microwave heating reactor (2), an annular seat (501) mounted on the support base (1), and a plurality of blades (511) slidably mounted on the annular seat (501) circumferentially.

6. A biomass pyrolysis gasification device according to claim 5, characterized in that: Each blade (511) is rotatably mounted on a sliding seat (54) via a rotating rod (59), and a carrier plate (55) extends from the sliding seat (54) toward the center of the ring seat (501). A drive motor (56) is fixedly mounted on the carrier plate (55), and a worm (57) is fixedly connected to the transmission output end of the drive motor (56). A drive gear seat (58) is fixedly connected to the bottom end of the worm (57). The ring seat (501) is an annular toothed ring that meshes with the drive gear seat (58), and a worm wheel (510) that meshes with the worm (57) is fixedly mounted on the rotating rod (59).

7. A biomass pyrolysis gasification device according to claim 2, characterized in that: The cylinder (31) has a central shaft (412) fixedly connected to the axial center of both ends. The two central shafts (412) correspond one-to-one with the two supports (47), and each central shaft (412) is mounted on its corresponding support (47). One of the central shafts (412) is connected to the rotary motor (413) for transmission. The cylinder (31) is also fixedly installed with multiple support rods (49) on the outer part of the central axis (412), and the bracket (47) is provided with a slide rail (48) for the support rods (49) to slide.

8. A biomass pyrolysis gasification device according to claim 7, characterized in that: The support rod (49) protrudes at one end toward the bracket (47) to form a limiting part, and the slide rail (48) has a T-shaped structure that matches the cross-section of the support rod (49).

9. A biomass pyrolysis gasification device according to claim 7, characterized in that: The pretreatment mechanism (3) also includes a transmission cover (411) connected between the central shaft (412) and the cylinder (31). A cutting motor (34) is installed inside the transmission cover (411). There are two cutting motors (34) and they correspond one-to-one with two rotating shafts (32).

10. A biomass pyrolysis gasification device according to claim 6, characterized in that: The bottom end of the sliding seat (54) protrudes to form a T-shaped structure, and the ring seat (501) has a T-shaped groove (52) for the sliding seat (54) to be inserted.

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