A biomass dry distillation pyrolysis device

Abstract

The invention discloses a biomass dry distillation pyrolysis device, which belongs to the field of biomass pyrolysis. The device comprises a shell, a cavity one opened inside the shell, a cover body fixedly connected to the upper end of the shell, and an air supply fan fixedly connected to the outer surface of the shell for conveying oxygen into the cavity one. The cavity one is also connected with a feeding unit, and the feeding unit comprises a cross-shaped plate body fixedly connected to the cavity one. The force of the airflow and the density difference of the material particles are used to sort the particles of different densities, so that the biomass raw material particles with larger density fall into a heat-extending and decomposition-aiding drop tray and roll downward along the heat-extending and decomposition-aiding drop tray, so that the biomass raw material particles with large density are fully preheated before being pyrolyzed, thereby reducing the energy consumption required for the pyrolysis process, facilitating the subsequent full pyrolysis treatment of the inside of the biomass particles, and avoiding the failure of the inside of the biomass raw material particles with larger density to be fully pyrolyzed.

Description

Technical Field

[0001] The invention relates to the field of biomass pyrolysis, and more specifically to a biomass dry distillation pyrolysis device. Background Art

[0002] Biomass pyrolysis refers to the process of heating biomass to a certain temperature under the condition of air isolation or a small amount of air to decompose into charcoal, tar and pyrolysis gas.

[0003] In order to solve the problem that the pyrolysis gas of the existing pyrolysis device contains water and oil during the pyrolysis of biomass and needs to be processed through a relatively complex purification process, the prior art (the Chinese invention patent application with the publication number CN107267170A) discloses a biomass dry distillation pyrolysis device, which uses a double drum structure to dry and pyrolyze the biomass, and the high-temperature flue gas is isolated from the biomass material and the pyrolysis gas generated by the pyrolysis thereof;

[0004] Although it can ensure that the generated fuel gas is of high quality, the biomass raw materials may be composed of a mixture of multiple biomass materials. Before pyrolysis, the biomass raw materials usually need to be pre-treated by means of crushing, screening, granulation, etc. to make the particle size, shape and density of the biomass raw materials more uniform, thereby improving the heat and mass transfer efficiency. Different types of biomass, even if the particle size is similar, their density is not the same. The pyrolysis rate of biomass raw material particles with lower density and biomass raw material particles with higher density at the same temperature will also be different, which will result in different pyrolysis rates of biomass raw material particles with different densities that are simultaneously undergoing pyrolysis reactions in the pyrolysis equipment, resulting in insufficient pyrolysis inside the biomass raw material particles with higher density. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide a biomass dry distillation pyrolysis device.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A biomass dry distillation pyrolysis device, comprising a shell, a cavity 1 opened inside the shell, a cover body fixedly connected to the upper end of the shell, and an air supply fan fixedly connected to the outer surface of the shell for conveying oxygen into the cavity 1, wherein the cavity 1 is also connected to a feeding unit, and the feeding unit comprises a cross-shaped plate body fixedly connected to the cavity 1, an exhaust port opened inside the cross-shaped plate body and a blanking port 1 connected to the exhaust port, a blanking port 2 opened at the lower end of the cross-shaped plate body and connected to the exhaust port, a plurality of connecting plates slidably connected to the inner wall of the cavity 1, and a heat-extending and decomposition-aiding blanking plate fixedly connected to the other side of the plurality of connecting plates, wherein the upper end of the cross-shaped plate body penetrates the cover body and extends outward, and both ends of the cross-shaped plate body penetrate the shell and extend outward, wherein one of the extended ends of the cross-shaped plate body is connected to a condensation collection portion;

[0008] The shell is provided with an exhaust port connected to the cavity, and an exhaust fan with an input end connected to the exhaust port is fixedly connected to the outer surface of the shell, and the output end of the exhaust fan is connected to one of the extended ends of the cross-shaped plate through a pipeline.

[0009] Furthermore, a discharge part is fixedly connected to the lower end of the shell, and a cooling part is connected to the outside of the discharge part. The cooling part includes a serpentine tube body fixedly connected to the outer surface of the discharge part and two pump bodies connected to two ports of the serpentine tube body, and the two pump bodies are connected by a condenser.

[0010] Furthermore, a preheating and uniform heating component is also connected to the interior of the cavity, and the preheating and uniform heating component includes a rod body 1 rotatably connected to the lower end of the cover body, a plurality of extension frames fixedly connected to the outer surface of the rod body 1, and a slope 1 opened at the upper ends of the plurality of extension frames, and the lower ends of the plurality of connecting plates are each provided with a slope 2 matching the slope 1, a motor is fixedly connected to the upper end of the cover body, and the output shaft of the motor passes through the cover body and is fixedly connected to the upper end of the rod body 1, and the other ends of the plurality of rod bodies 1 are slidably connected to the inner wall of the cavity 1.

[0011] Furthermore, a feed opening is provided inside the heat-extending and decomposition-assisted blanking tray, and the lower end of the cross-shaped plate is movably inserted into the feed opening.

[0012] Furthermore, the heat-extending and assisted dissolution material-dropping tray is spiral-shaped, and the inner wall of the heat-extending and assisted dissolution material-dropping tray is provided with a plurality of flanges, and a filter screen is clamped on the inner wall of the exhaust port to prevent the material body from being discharged from the exhaust port.

[0013] Furthermore, the discharge end of the heat-extending and decomposition-aiding drop tray is connected to a pyrolysis catalyst unit, and the pyrolysis catalyst unit includes a box body fixedly connected to one side of the heat-extending and decomposition-aiding drop tray, a second cavity for storing the catalyst and a through groove connected to the second cavity, a screen fixed to the inner wall of the through groove, a material selection rack rotatably connected to the upper end of the screen, and a gear rotatably connected to the lower end of the box body and connected to the material selection rack, and the upper ends of the multiple extension racks are connected to tooth keys meshing with the gears.

[0014] Furthermore, a mixing and dissolution-aiding component is also connected to the interior of the cavity one, and the mixing and dissolution-aiding component includes a support plate fixedly connected to the inner wall of the cavity one, a plurality of material drop holes opened inside the support plate, a plurality of metal spheres movably connected to the upper end of the support plate, a rod body two fixedly connected to the lower end of the rod body, a conical seat sleeved on the outside of the rod body two, a plurality of material removal plates fixedly connected to the outer surface of the conical seat, and a bracket fixedly connected to the lower end of the support plate.

[0015] Furthermore, one end of the second rod body is fixedly connected to a lower end of the rod body, and the other end of the second rod body is rotatably connected to an upper end of the support plate, and the lower end of the bracket is fixedly connected to an inner wall of the discharge portion.

[0016] Furthermore, a spring is sleeved on the outside of the second rod body, and the two ends of the spring are respectively connected to the lower end of the rod body and the upper end of the conical seat, the upper end of the support plate is provided with multiple grooves, and the lower end of the conical seat is integrally formed with multiple flanges matching the grooves.

[0017] Furthermore, an annular extension portion is fixedly connected to the lower end of the conical seat, and an annular movable groove for accommodating the annular extension portion is formed on the upper end of the support plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) This scheme provides a cross-shaped plate and a heat-extending and decomposition-assisted drop tray. The exhaust fan extracts the pyrolysis gas from the cavity and blows it into the exhaust port in the cross-shaped plate. When the biomass raw material particles fall from the drop port 1 of the cross-shaped plate into the exhaust port, the force of the airflow and the density difference of the material particles are used to sort the particles of different densities, so that the biomass raw material particles with larger density fall into the heat-extending and decomposition-assisted drop tray and roll down along the heat-extending and decomposition-assisted drop tray, so that the high-density biomass raw material particles are fully preheated before being pyrolyzed, thereby reducing the energy consumption required for the pyrolysis process. At the same time, during the preheating process, part of the biomass may undergo pyrolysis reaction and release volatile organic compounds, which is conducive to the subsequent full pyrolysis treatment of the interior of the biomass particles and avoids the failure of full pyrolysis of the interior of the biomass raw material particles with larger density.

[0020] (2) This solution provides a preheating and uniform heating component, which drives the rod body to rotate through a motor, thereby driving the heat-extending and decomposition-aiding drop tray to move up and down inside the cavity, so that the biomass raw material particles flowing inside the heat-extending and decomposition-aiding drop tray are continuously turned over and mixed, thereby achieving more uniform heating and treatment of the biomass raw material particles. At the same time, the biomass raw material particles may reduce the particle size of some biomass raw materials during the turning and mixing process, thereby increasing their specific surface area and improving the efficiency of the pyrolysis reaction.

[0021] (3) This scheme sets up a pyrolysis catalyst section, and the high-density biomass raw material particles discharged from the extended heat-assisted decomposition drop tray enter the pyrolysis catalyst section and mix with the catalyst. The catalyst can effectively reduce the activation energy of the pyrolysis reaction, so that the biomass can be pyrolyzed at a lower temperature. The preheating and the mixing of the catalyst enable the biomass raw material to quickly absorb heat, shortening the time required to reach the pyrolysis temperature. At the same time, the presence of the catalyst accelerates the progress of the pyrolysis reaction, so that the entire pyrolysis process can be completed in a shorter time. It can also inhibit side reactions in the pyrolysis process, reduce the generation of by-products such as coke, and fully pyrolyze the high-density biomass particle raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the cavity 1, the cross-shaped plate, the air suction port and the air suction fan of the present invention;

[0024] Figure 3 It is a schematic diagram of the extension frame, the second blanking port and the gear structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the feed port, inclined plane 1, inclined plane 2 and tooth key structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the pyrolysis catalyst part of the present invention;

[0027] Figure 6 It is a schematic diagram of the exhaust port and filter structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the mixing and dissolution-aiding component of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the groove and the annular movable groove of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of flange 2 and annular extension portion of the present invention;

[0031] Fig.10 It is a cross-sectional view of the shell of the present invention.

[0032] Description of the numbers in the figure:

[0033] 1. Shell; 11. Cavity 1; 12. Air extraction port; 2. Cover; 3. Feed unit; 31. Cross-shaped plate; 32. Dropping port 1; 33. Heat-extending and decomposing drop tray; 331. Feed port; 34. Air extraction fan; 35. Pipeline; 36. Connecting plate; 37. Dropping port 2; 38. Exhaust port; 39. Filter; 4. Condensation collection part; 5. Air supply fan; 6. Cooling part; 61. Serpentine tube; 62. Pump body; 7. Discharge part; 8. Preheating and uniform heating component; 81. Motor; 82. Rod 1; 8 3. Extension frame; 84. Inclined surface one; 85. Inclined surface two; 86. Flange one; 9. Pyrolysis catalyst section; 91. Box body; 92. Cavity two; 93. Screen; 94. Material shifting frame; 95. Gear; 96. Tooth key; 10. Mixing and dissolving aid component; 101. Rod body two; 102. Conical seat; 103. Support plate; 104. Metal sphere; 105. Material shifting plate; 106. Bracket; 107. Annular movable groove; 108. Groove; 109. Flange two; 110. Annular extension; 111. Spring. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 10 A biomass dry distillation pyrolysis device, comprising a shell 1, a cavity 11 opened inside the shell 1, a cover 2 fixedly connected to the upper end of the shell 1, and an air supply fan 5 fixedly connected to the outer surface of the shell 1 for supplying oxygen into the cavity 11, wherein the cavity 11 is further connected with a feed unit 3, and the feed unit 3 comprises a cross-shaped plate 31 fixedly connected to the cavity 11, an exhaust port 38 opened inside the cross-shaped plate 31, and a dropper connected to the exhaust port 38. A material port 1 32, a material port 2 37 opened at the lower end of the cross-shaped plate body 31 and connected to the exhaust port 38, a plurality of connecting plates 36 slidably connected to the inner wall of the cavity 11, and a heat-extending and decomposition-assisting material drop tray 33 fixedly connected to the other side of the plurality of connecting plates 36, and the upper end of the cross-shaped plate body 31 passes through the cover body 2 and extends outward, and both ends of the cross-shaped plate body 31 pass through the shell body 1 and extend outward, and one of the extended ends of the cross-shaped plate body 31 is connected to the condensation collection part 4;

[0036] The shell 1 is also provided with an exhaust port 12 connected to the cavity 11, and an exhaust fan 34 whose input end is connected to the exhaust port 12 is fixedly connected to the outer surface of the shell 1, and the output end of the exhaust fan 34 is connected to one of the extended ends of the cross-shaped plate 31 through a pipe 35.

[0037] The lower end of the housing 1 is also fixedly connected to a discharge portion 7, and the outside of the discharge portion 7 is connected to a cooling portion 6, and the cooling portion 6 includes a serpentine tube body 61 fixedly connected to the outer surface of the discharge portion 7 and two pump bodies 62 connected to two ports of the serpentine tube body 61, and the two pump bodies 62 are connected through a condenser. A filter screen 39 is clamped on the inner wall of the exhaust port 38 to prevent the material from being discharged from the exhaust port 38.

[0038] By adopting the above technical scheme, the biomass raw material particles fall into the cross-shaped plate 31 from the drop port 32, the air supply fan 5 is turned on, the biomass raw material in the cavity 11 is ignited, and the air intake is slowly adjusted to cause oxygen-deficient combustion of the raw material inside the cavity 11, and the exhaust fan 34 works to extract the gas generated during the pyrolysis process through the exhaust port 12, and send the hot gas into the exhaust port 38 inside the cross-shaped plate 31 from the pipeline 35. The gas can blow the biomass raw material particles with low density falling from the drop port 32 toward the filter 39, and the remaining pyrolysis gas is discharged from the other end of the exhaust port 38 and enters the condensation collection part 4 (the condensable components in the gas phase product are converted into bio-oil by cooling, and the bio-oil is collected, which belongs to the mature existing technology and will not be repeated here). The biomass raw material particles with higher density that are discharged from the second drop port 37 and fall into the lower part of the cavity 11 for direct pyrolysis, and the biomass raw material particles with higher density that fall from the drop port 1 32 fall directly into the heat-extending and assisted-decomposition drop tray 33, and roll downward inside the heat-extending and assisted-decomposition drop tray 33, so that the high-density biomass raw material particles are fully preheated before being pyrolyzed, thereby reducing the energy consumption required for the pyrolysis process; at the same time, during the preheating process, part of the biomass may undergo pyrolysis reaction and release volatile organic compounds, which is conducive to the subsequent full pyrolysis treatment of the inside of the biomass particles, thereby avoiding the situation where the inside of the biomass raw material particles with higher density cannot be fully pyrolyzed; the carbonized biomass after combustion and pyrolysis is discharged from the discharge portion 7, and the cooling portion 6 cools the discharge portion 7 by water cooling, so that the carbonized biomass in the discharge portion 7 drops to ambient temperature.

[0039] like Figure 1 - Figure 4 As shown, the cavity 11 is also connected to a preheating and uniform heating component 8, and the preheating and uniform heating component 8 includes a rod 82 rotatably connected to the lower end of the cover 2, a plurality of extension frames 83 fixed to the outer surface of the rod 82, and a bevel 84 provided at the upper end of the plurality of extension frames 83. The lower ends of the plurality of connecting plates 36 are provided with a bevel 85 matching the bevel 84. The upper end of the cover 2 is fixed to a motor 81, and the output shaft of the motor 81 passes through the cover 2 and is fixed to the upper end of the rod 82. The other ends of the plurality of rods 82 are slidably connected to the inner wall of the cavity 11. A feed port 331 is provided inside the heat-extending and decomposing material tray 33, and the lower end of the cross-shaped plate 31 is movably inserted into the feed port 331.

[0040] The heat-extending and decomposing material-blanking plate 33 is spiral-shaped, and the inner wall of the heat-extending and decomposing material-blanking plate is provided with a plurality of flanges 86 .

[0041] By adopting the above technical solution, the motor 81 drives the rod body 82 to rotate, and the rotation of the rod body 82 drives the multiple extension frames 83 to rotate. When the multiple extension frames 83 rotate, the inclined surface 84 will contact the inclined surface 85. When the inclined surface 84 contacts the inclined surface 85, it will push the connecting plate 36 and the extended heat-assisted decomposition blanking tray 33 to move upward. When the extension frame 83 is separated from the connecting plate 36, the connecting plate 36 and the extended heat-assisted decomposition blanking tray 33 move downward and reset. In this way, the extended heat-assisted decomposition blanking tray 33 can move up and down inside the cavity 11, so that the biomass raw material particles flowing inside the extended heat-assisted decomposition blanking tray 33 are continuously turned over and mixed, so as to achieve more uniform heating and treatment of the biomass raw material particles. At the same time, the biomass raw material particles may reduce the particle size of some biomass raw materials during the turning and mixing process, thereby increasing its specific surface area and improving the efficiency of the pyrolysis reaction.

[0042] like Figure 4 and Figure 5 As shown, the discharge end of the heat-extending and decomposition-aiding drop tray 33 is connected to a pyrolysis catalyst unit 9, and the pyrolysis catalyst unit 9 includes a box body 91 fixedly connected to one side of the heat-extending and decomposition-aiding drop tray 33, a cavity 92 for storing a catalyst and a through groove connected to the cavity 92, a screen 93 fixed to the inner wall of the through groove, a material selection rack 94 rotatably connected to the upper end of the screen 93, and a gear 95 rotatably connected to the lower end of the box body 91 and connected to the material selection rack 94. The upper ends of the plurality of extension racks 83 are connected with tooth keys 96 meshing with the gear 95.

[0043] By adopting the above technical solution, the biomass particle raw material discharged from the extended heat-assisted decomposition drop plate 33 can fall into the second cavity 92, and the second cavity 92 contains a catalyst, so that the preheated high-density biomass particle raw material contacts the catalyst. When the extension frame 83 rotates, the tooth key 96 can contact the gear 95, driving the gear 95 and the material-diverting frame 94 to rotate, stirring the high-density biomass particle raw material and the catalyst, so that the high-density biomass particle raw material fully contacts the catalyst. The catalyst can effectively reduce the activation energy of the pyrolysis reaction, so that the biomass can be pyrolyzed at a lower temperature. The mixture of preheating and catalyst enables the biomass raw material to absorb heat quickly, shortening the time required to reach the pyrolysis temperature. At the same time, the presence of the catalyst accelerates the progress of the pyrolysis reaction, so that the entire pyrolysis process can be completed in a shorter time. It can also inhibit side reactions during the pyrolysis process, reduce the generation of by-products such as coke, and fully pyrolyze the high-density biomass particle raw materials. When the heat-extending and decomposition-aiding drop tray 33 moves up and down, it can drive the box body 91 to move up and down. The up and down movement generates vibration, which facilitates the high-density biomass particle raw materials in the cavity 92 to be discharged through the screen 93.

[0044] like Figure 7 - Fig. 9As shown, the cavity 11 is also connected to a mixing and dissolving aid component 10, and the mixing and dissolving aid component 10 includes a support plate 103 fixedly connected to the inner wall of the cavity 11, a plurality of material drop holes opened inside the support plate 103, a plurality of metal spheres 104 movably connected to the upper end of the support plate 103, a rod body 101 fixedly connected to the lower end of the rod body 1 82, a conical seat 102 sleeved on the outside of the rod body 101, a plurality of material removal plates 105 fixedly connected to the outer surface of the conical seat 102, and a bracket 106 fixedly connected to the lower end of the support plate 103.

[0045] One end of the second rod body 101 is fixedly connected to the lower end of the first rod body 82 , and the other end of the second rod body 101 is rotatably connected to the upper end of the support plate 103 , and the lower end of the bracket 106 is fixedly connected to the inner wall of the discharge portion 7 .

[0046] A spring 111 is sleeved on the outside of the rod body 101, and the two ends of the spring 111 are respectively connected to the lower end of the rod body 1 82 and the upper end of the conical seat 102. A plurality of grooves 108 are opened on the upper end of the support plate 103, and a plurality of flanges 109 matching the grooves 108 are integrally formed at the lower end of the conical seat 102.

[0047] An annular extension portion 110 is fixedly connected to the lower end of the conical seat 102 , and an annular movable groove 107 for accommodating the annular extension portion 110 is formed at the upper end of the support plate 103 .

[0048] By adopting the above technical scheme, the biomass raw materials with low density discharged from the second drop port 37 and the biomass raw materials passing through the pyrolysis catalyst part 9 fall on the support plate 103. The motor 81 drives the rod body 1 82 to rotate and can drive the rod body 2 101 to rotate at the same time. The rotation of the rod body 2 101 drives the conical seat 102 and the material-pickup plate 105 to rotate, thereby driving the biomass raw materials and the metal sphere 104 on the support plate 103 to move, so that the biomass raw material particles can contact the heated metal sphere 104, thereby achieving the effects of accelerating heat transfer, enhancing catalytic effect, uniformly mixing materials, improving pyrolysis efficiency and improving product quality. This design quickly transfers heat to the biomass particles through the high temperature and large thermal mass of the metal sphere 104. At the same time, the catalytic effect of the metal sphere 104 (metals such as nickel and copper have certain catalytic activity and can reduce the activation energy of the pyrolysis reaction) may promote the pyrolysis reaction. The rolling and collision of the metal sphere 104 on the support plate 103 can make the biomass particles mixed more evenly, avoid accumulation and local overheating, and the carbonized biomass after pyrolysis and carbonization is discharged through the drop holes in the support plate 103.

[0049] Method of use: The biomass raw material particles fall into the cross-shaped plate 31 from the drop port 32, the air supply fan 5 is turned on, the biomass raw material in the cavity 11 is ignited, the exhaust fan 34 works to extract the gas generated during the pyrolysis process through the exhaust port 12, and the hot gas is sent from the pipeline 35 to the exhaust port 38 inside the cross-shaped plate 31. The gas can blow the low-density biomass raw material particles falling from the drop port 32 toward the filter 39, and the remaining pyrolysis gas is discharged from the other end of the exhaust port 38 and enters the condensation collection part 4, and the low-density biomass raw material particles The biomass raw material particles with large density that are discharged from the drop port 37 and fall into the lower part of the cavity 11 are directly pyrolyzed. The biomass raw material particles with large density that fall from the drop port 32 fall directly into the extended heat-assisted decomposition drop tray 33 and roll downward inside the extended heat-assisted decomposition drop tray 33, so that the high-density biomass raw material particles are fully preheated before being pyrolyzed. The motor 81 drives the rod body 82 and the extension frame 83 to rotate, and the extension frame 83 rotates to drive the extended heat-assisted decomposition drop tray 33 to move up and down, so that the biomass raw material particles flowing inside the extended heat-assisted decomposition drop tray 33 are continuously turned over and mixed, and the extended heat-assisted decomposition drop tray 33 is ... The biomass particles discharged from the thermal decomposition blanking plate 33 can fall into the cavity 92, and there is a catalyst in the cavity 92, so that the preheated high-density biomass particles can contact the catalyst. When the extension frame 83 rotates, the tooth key 96 can contact the gear 95, drive the gear 95 and the material-diverting frame 94 to rotate, and stir the high-density biomass particles and the catalyst, so that the high-density biomass particles are fully in contact with the catalyst. The low-density biomass particles discharged from the blanking port 2 37 and the biomass materials that have passed through the pyrolysis catalyst section 9 fall on the support plate 103. The motor 81 drives the rod body 1 82 to rotate and can also drive the rod body 2 101 to rotate. The rotation of the rod body 2 101 drives the conical seat 102 and the material-dispensing plate 105 to rotate, thereby driving the biomass raw material and the metal sphere 104 on the support plate 103 to move, so that the biomass raw material particles can contact with the heated metal sphere 104, and the carbonized biomass after pyrolysis and carbonization is discharged through the drop hole in the support plate 103 and discharged from the discharge part 7. The cooling part 6 cools the discharge part 7 by water cooling, so that the carbonized biomass in the discharge part 7 drops to the ambient temperature.

[0050] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A biomass dry distillation pyrolysis device, comprising a housing (1), a cavity (11) provided inside the housing (1), a cover (2) fixed to the upper end of the housing (1), and an air supply fan (5) fixed to the outer surface of the housing (1) for supplying oxygen into the cavity (11), characterized in that: The cavity one (11) is also connected to a feed unit (3), and the feed unit (3) comprises a cross-shaped plate (31) fixedly connected to the cavity one (11), an exhaust port (38) opened in the cross-shaped plate (31) and a second drop port (37) connected to the exhaust port (38), a drop port one (32) opened at the upper and lower ends of the cross-shaped plate (31) and connected to the exhaust port (38), a plurality of connecting plates (36) slidably connected to the inner wall of the cavity one (11), and a heat-extending and decomposition-aiding drop plate (33) fixedly connected to the other side of the plurality of connecting plates (36), wherein the upper end of the cross-shaped plate (31) passes through the cover body (2) and extends outwardly, and both ends of the cross-shaped plate (31) pass through the shell (1) and extend outwardly, and one of the extended ends of the cross-shaped plate (31) is connected to the condensation collection portion (4); The shell (1) is also provided with an air suction port (12) in communication with the cavity (11), and an air suction fan (34) whose input end is connected to the air suction port (12) is fixedly connected to the outer surface of the shell (1), and the output end of the air suction fan (34) is connected to one of the extended ends of the cross-shaped plate (31) via a pipe (35); The heat-extending and decomposition-assisted material dropping tray (33) is provided with a material feeding port (331) inside, and the lower end of the cross-shaped plate (31) is movably inserted into the material feeding port (331); The extended heat-assisted decomposition material drop plate (33) is spiral-shaped, and the inner wall of the extended heat-assisted decomposition material drop plate is provided with a plurality of flanges (86); the inner wall of the exhaust port (38) is clamped with a filter (39) for preventing the material body from being discharged from the exhaust port (38); the exhaust fan (34) works to extract the gas generated during the pyrolysis process through the exhaust port (12), and sends the hot gas from the pipeline (35) into the exhaust port (38) inside the cross-shaped plate (31), and the gas can blow the biomass raw material particles with low density falling from the drop port (32) towards the filter (39); the biomass raw material particles with low density are discharged from the drop port (37) and fall into the lower part of the cavity (11) for direct pyrolysis.

2. A biomass dry distillation pyrolysis device according to claim 1, characterized in that: The lower end of the shell (1) is also fixedly connected to a discharge portion (7), and the outside of the discharge portion (7) is connected to a cooling portion (6), wherein the cooling portion (6) comprises a serpentine tube body (61) fixedly connected to the outer surface of the discharge portion (7) and two pump bodies (62) connected to two ports of the serpentine tube body (61), and the two pump bodies (62) are connected via a condenser.

3. A biomass dry distillation pyrolysis device according to claim 2, characterized in that: The cavity body (11) is also connected to a preheating and uniform heating component (8), and the preheating and uniform heating component (8) comprises a rod body (82) rotatably connected to the lower end of the cover body (2), a plurality of extension frames (83) fixedly connected to the outer surface of the rod body (82), and a beveled surface (84) provided at the upper ends of the plurality of extension frames (83), and a beveled surface (85) matching the beveled surface (84) is provided at the lower ends of the plurality of connecting plates (36). A motor (81) is fixedly connected to the upper end of the cover body (2), and an output shaft of the motor (81) passes through the cover body (2) and is fixedly connected to the upper end of the rod body (82), and the other ends of the plurality of extension frames (83) are slidably connected to the inner wall of the cavity body (11).

4. A biomass dry distillation pyrolysis device according to claim 3, characterized in that: The discharge end of the heat-extending and decomposition-aiding material-discharging tray (33) is connected to a pyrolysis catalytic unit (9), and the pyrolysis catalytic unit (9) comprises a box body (91) fixedly connected to one side of the heat-extending and decomposition-aiding material-discharging tray (33), a second cavity (92) for storing a catalyst and a through slot connected to the second cavity (92) provided inside the box body (91), a screen (93) fixedly connected to the inner wall of the through slot, a material-discharging rack (94) rotatably connected to the upper end of the screen (93), and a gear (95) rotatably connected to the lower end of the box body (91) and connected to the material-discharging rack (94), and the upper ends of the plurality of extension racks (83) are all connected to a tooth key (96) meshing with the gear (95).

5. A biomass dry distillation pyrolysis device according to claim 4, characterized in that: The cavity one (11) is also connected to a mixing and dissolving aid component (10), and the mixing and dissolving aid component (10) comprises a support plate (103) fixedly connected to the inner wall of the cavity one (11), a plurality of material drop holes provided in the support plate (103), a plurality of metal spheres (104) movably connected to the upper end of the support plate (103), a rod body (101) fixedly connected to the lower end of the rod body one (82), a conical seat (102) sleeved on the outside of the rod body (101), a plurality of material shifting plates (105) fixedly connected to the outer surface of the conical seat (102), and a bracket (106) fixedly connected to the lower end of the support plate (103).

6. A biomass dry distillation pyrolysis device according to claim 5, characterized in that: One end of the second rod body (101) is fixedly connected to the lower end of the first rod body (82), and the other end of the second rod body (101) is rotatably connected to the upper end of the support plate (103), and the lower end of the bracket (106) is fixedly connected to the inner wall of the discharge portion (7).

7. A biomass dry distillation pyrolysis device according to claim 6, characterized in that: The second rod body (101) is sleeved with a spring (111), and the two ends of the spring (111) are respectively connected to the lower end of the first rod body (82) and the upper end of the conical seat (102); the upper end of the support plate (103) is provided with a plurality of grooves (108); and the lower end of the conical seat (102) is integrally formed with a plurality of second flanges (109) that match the grooves (108).

8. A biomass dry distillation pyrolysis device according to claim 7, characterized in that: An annular extension portion (110) is fixedly connected to the lower end of the conical seat (102), and an annular movable groove (107) for accommodating the annular extension portion (110) is formed at the upper end of the support plate (103).

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