Biomass baking condensable gas collecting equipment

Abstract

The invention discloses biomass baking condensable gas collecting equipment, and belongs to the field of gas collecting equipment.The biomass baking condensable gas collecting equipment comprises a baking oven, a collecting box is fixedly installed on one side of the baking oven, and a conveying pipe is fixedly installed on the side, close to the collecting box, of the top of the baking oven; one end of the conveying pipe penetrates through the collecting box and extends into the collecting box, a condenser is fixedly installed on one side of the collecting box, a condensation pipe is arranged in an inner cavity of the conveying pipe, the condensation pipe and the condenser are fixedly installed, and a fixing pipe is fixedly installed on one side of the collecting box. According to the biomass baking device, heat can be uniformly distributed on biomass raw materials, the heat transfer efficiency can be effectively improved, the situation that some parts are overheated and other parts are not sufficiently heated due to the fact that the heat cannot be uniformly distributed on the biomass raw materials is avoided, the baking efficiency can be effectively improved, and finally the gas collecting efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the field of gas collection equipment, and more particularly to a biomass torrefaction condensable gas collection device. Background Art

[0002] Biomass torrefaction is a process of thermally treating or baking biomass materials (such as wood, straw, crop residues, etc.). After torrefaction, biomass materials can be converted into biochar or other forms of renewable energy. This energy can replace traditional fossil fuels for power generation, heating or as fuel. During the biomass torrefaction process, condensable gases and non-condensable gases are produced. Condensable gases include water vapor and a series of volatile organic compounds and other chemical components. These gases will be liquefied and collected by the condenser, while non-condensable gases will be collected separately.

[0003] During the baking process, biomass raw materials are usually placed on a fixed platform or in a furnace for processing. Therefore, the raw materials are usually motionless during the entire baking process. This situation will lead to the formation of undesirable gas channels in the baking chamber, which not only affects the flow of gas, but also affects the efficiency of heat transfer, so that heat cannot be evenly distributed on the biomass raw materials, causing some parts to overheat and other parts to be underheated, thereby reducing the baking efficiency. Summary of the Invention

[0004] In response to the problems existing in the prior art, the purpose of the present invention is to provide a biomass baking condensable gas collection device, which can achieve uniform distribution of heat on the biomass raw materials, effectively improve the efficiency of heat transfer, and avoid the situation where heat cannot be evenly distributed on the biomass raw materials, causing some parts to overheat and other parts to be underheated, thereby effectively improving the baking efficiency and ultimately improving the gas collection efficiency.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A biomass roasting condensable gas collection device includes a roasting box, a collection box is fixedly installed on one side of the roasting box, a delivery pipe is fixedly installed on the top of the roasting box close to the side of the collection box, the other end of the delivery pipe passes through the collection box and extends into the collection box, a condenser is fixedly installed on one side of the collection box, a condensing pipe is provided in the inner cavity of the delivery pipe, the condensing pipe is fixedly installed to the condenser, a fixed pipe is fixedly installed on one side of the collection box, an elastic collection bag is provided on the side of the fixed pipe away from the collection box, a connecting pipe is fixedly installed on one end of the elastic collection bag, the connecting pipe is threadedly installed with the fixed pipe, and a rotating assembly is provided in the collection box.

[0007] Furthermore, the rotating assembly includes a baking table rotatably mounted in the baking box, a motor is fixedly mounted on the bottom of the baking box, an output end of the motor passes through the baking box and is fixedly mounted on the baking table, the output end of the motor is rotatably mounted on the baking box, support plates are evenly fixedly mounted on the side walls of the baking box, each group of the support plates is rotatably mounted on a rotating rod, each group of the rotating rods is evenly fixedly mounted on the side walls, a fixed plate is evenly fixedly mounted on the side walls, a gear is fixedly mounted on the bottom end of each group of the rotating rods, a gear ring is fixedly mounted on the top of the baking box, and each group of the gears is meshed with the gear ring.

[0008] Furthermore, two groups of round tubes are fixedly installed on the top of each group of gears, and sliders are slidably installed in the inner cavity of each group of round tubes. A telescopic spring is fixedly installed between the bottom of each group of sliders and the top of the adjacent gears, and balls are rollingly installed on the top of each group of sliders. The bottom of each group of support plates is provided with grooves that are compatible with the balls.

[0009] Furthermore, each group of the sliders is evenly provided with exhaust holes, each group of the round tubes is evenly provided with suction holes on their side walls, and each group of the suction holes and the exhaust holes are connected to the inner cavity of the adjacent round tubes and the baking box.

[0010] Furthermore, a mesh ring is provided between each group of the fixing plates, and the mesh ring is fixedly mounted on the top of the baking table.

[0011] Furthermore, a heat conducting plate 1 is fixedly mounted on an inner wall of one side of the baking oven, a heat conducting plate 2 is fixedly mounted on a side of the top of the baking oven close to the heat conducting plate 1, heat conducting rods are evenly fixedly mounted between the heat conducting plate 2 and the heat conducting plate 1, heat conducting rings are evenly mounted on the outer wall of the delivery pipe, and each group of the heat conducting rings is fixedly mounted to the top of the heat conducting plate 2.

[0012] Furthermore, a heat preservation frame is provided on the outer side of the top of the delivery pipe, and the heat preservation frame is fixedly installed on the top of the baking box and the collection box.

[0013] Furthermore, a circular frame is provided above the condensing pipe, and the circular frame is rotatably mounted on the inner wall of the conveying pipe. A fixing rod is provided inside the circular frame, and a connecting plate is evenly fixedly mounted between the fixing rod and the inner wall of the circular frame. A fan blade is fixedly mounted on the top of the fixing rod, and the fan blade is rotatably mounted on the inner wall of the conveying pipe.

[0014] Furthermore, a one-way valve is fixedly installed in the inner cavity of each group of the exhaust holes and the intake holes, and the initial state of each group of the telescopic springs is a compressed state.

[0015] Furthermore, a mounting pipe is fixedly installed at the bottom of one side of the collecting box, and valves are installed on the fixed pipe, the connecting pipe and the mounting pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) In this solution, while the gear rotates in the gear ring, the rotating rod drives the groups of fixed plates on it to rotate synchronously. The rotation of the fixed plates can improve the fluidity of the hot gas in the baking chamber and make the temperature in the baking chamber uniform, so that an ideal gas channel can be formed in the baking chamber. At the same time, with the cooperation of the rotation of the biomass raw material, the heat can be evenly distributed on the biomass raw material, thereby effectively improving the efficiency of heat transfer and avoiding the situation where the heat cannot be evenly distributed on the biomass raw material, which will cause some parts to be overheated and other parts to be underheated, thereby effectively improving the baking efficiency and ultimately improving the gas collection efficiency.

[0018] (2) In this solution, during the rotation of each group of gears, the balls on them will reciprocate and hit the inner cavity of the adjacent grooves, and cause each group of support plates to vibrate. The shock waves will be transmitted to the baking table to vibrate the biomass raw materials. Through vibration, the adhesion between the biomass raw materials can be reduced, ensuring good fluidity of the raw materials in the reactor, thereby achieving more uniform heating. At the same time, it can help the biomass particles to contact more closely, effectively improve the heat conduction efficiency, and promote the uniform distribution of heat, further improving the baking efficiency and collection efficiency.

[0019] (3) In this solution, the slider can reciprocate and suck the gas in the baking box cavity and discharge it into the baking box cavity again during the rotation of the gear. At the same time, the gear rotates and moves in a circular motion along the gear ring, which can effectively improve the fluidity of the gas in the baking box cavity and make the gas temperature in the baking cavity more uniform, thereby achieving more uniform heating, and once again improving the baking efficiency and collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the front side of the present invention;

[0021] Figure 2 is a cross-sectional view of a baking oven of the present invention;

[0022] Figure 3 For the present invention Figure 1 A magnified view of the structure of the middle part A;

[0023] Figure 4 It is an overall cross-sectional view of the present invention;

[0024] Figure 5 For the present invention Figure 4 A magnified view of the structure of the middle B section;

[0025] Figure 6 For the present invention Figure 5 Enlarged view of the structure of the middle C section;

[0026] Figure 7 For the present invention Figure 4 A magnified view of the structure of the middle D section;

[0027] Figure 8 It is a structural schematic diagram of the circular frame of the present invention.

[0028] Description of the numbers in the figure:

[0029] 1. Baking box; 2. Collection box; 3. Delivery pipe; 4. Condenser; 5. Condenser pipe; 6. Fixed pipe; 7. Elastic collection bag; 8. Connecting pipe; 9. Baking table; 10. Motor; 11. Support plate; 12. Rotating rod; 13. Fixed plate; 14. Gear; 15. Ring gear; 16. Round tube; 17. Slider; 18. Telescopic spring; 19. Ball bearing; 20. Groove; 21. Exhaust hole; 22. Intake hole; 23. Mesh ring; 24. Heat transfer ring; 25. Heat transfer plate 2; 26. Heat transfer plate 1; 27. Heat transfer rod; 28. Insulation frame; 29. ​​Round frame; 30. Fixed rod; 31. Connecting plate; 32. Fan blade; 33. Mounting pipe. DETAILED DESCRIPTION

[0030] 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 8 A biomass roasting condensable gas collection device includes a roasting box 1, a collecting box 2 is fixedly installed on one side of the roasting box 1, a delivery pipe 3 is fixedly installed on the top of the roasting box 1 near the side of the collecting box 2, the other end of the delivery pipe 3 passes through the collecting box 2 and extends into the collecting box 2, a condenser 4 is fixedly installed on one side of the collecting box 2, a condensing pipe 5 is provided in the inner cavity of the delivery pipe 3, the condensing pipe 5 is fixedly installed to the condenser 4, a fixed pipe 6 is fixedly installed on one side of the collecting box 2, an elastic collecting bag 7 is provided on the side of the fixed pipe 6 away from the collecting box 2, a connecting pipe 8 is fixedly installed on one end of the elastic collecting bag 7, the connecting pipe 8 is threadedly installed with the fixed pipe 6, and a rotating component is provided in the collecting box 2.

[0032] The rotating assembly includes a baking table 9 rotatably mounted in the baking box 1, a motor 10 fixedly mounted at the bottom of the baking box 1, an output end of the motor 10 passing through the baking box 1 and fixedly mounted on the baking table 9, and the output end of the motor 10 is rotatably mounted on the baking box 1, support plates 11 are evenly fixedly mounted on the side walls of the baking box 9, and a rotating rod 12 is rotatably mounted on each group of support plates 11, and a fixing plate 13 is evenly fixedly mounted on the side wall of each group of rotating rods 12, and a gear 14 is fixedly mounted on the bottom end of each group of rotating rods 12, and a gear ring 15 is fixedly mounted on the top of the baking box 1, and each group of gears 14 is meshed with the gear ring 15.

[0033] First, open the sealed movable door on the front wall of the baking box 1, then place the biomass raw materials to be baked on the top of the baking table 9, then close the sealed movable door, turn on the baking box 1 to heat and bake the biomass raw materials, turn on the motor 10, and the output shaft of the motor 10 drives the baking table 9 to rotate. When the baking table 9 rotates, it also drives the biomass raw materials on the top to move, so that the baking box 1 can evenly heat and bake the biomass raw materials. When the baking table 9 rotates, it also drives each group of support plates 11 to move synchronously. When the support plate 11 moves, it drives the gear 14 to move synchronously through the rotating rod 12. The gear 14 is engaged with the gear ring 15 to realize the gear 14 rotates in the gear ring 15. When the gear 14 rotates, it drives the groups of fixed plates 13 on it to rotate synchronously through the rotating rod 12. The rotation of the fixed plates 13 can improve the fluidity of the hot gas in the baking chamber, make the temperature in the baking chamber uniform, and form an ideal gas channel in the baking chamber. At the same time, with the cooperation of the rotation of the biomass raw material, the heat can be evenly distributed on the biomass raw material, thereby effectively improving the efficiency of heat transfer and avoiding the situation where the heat cannot be evenly distributed on the biomass raw material, which will cause some parts to be overheated and other parts to be insufficiently heated, thereby effectively improving the baking efficiency and ultimately improving the gas collection efficiency.

[0034] During the baking process, condensable gases and non-condensable gases will be generated. Condensable gases preferably include water vapor, which will float upwards, and the remaining condensable gases and non-condensable gases will flow into the delivery pipe 3 with the water vapor. The condenser 4 is turned on, and the coolant in the condenser 4 will circulate in the condenser tube 5. The condensable gas in the delivery pipe 3 will be cooled and liquefied when passing through the condenser tube 5. The liquefied condensable gas will flow into the bottom of the inner cavity of the collection box 2 for collection, while the non-condensable gas will be directly discharged into the inner cavity of the collection box 2. At this time, the condensable gas can be collected. Condensable gas and non-condensable gas are separated into gas and liquid. When collecting the non-condensable gas in the collection box 2, the connecting pipe 8 on the compressed elastic collection bag 7 is threadedly installed with the fixed pipe 6, and then the valves on the fixed pipe 6 and the connecting pipe 8 are opened respectively. Under the action of the elastic collection bag 7 itself, the elastic collection bag 7 returns to its original state and will absorb the non-condensable gas in the collection box 2 into it. When the elastic collection bag 7 returns to its original state and can no longer absorb, the valves on the fixed pipe 6 and the connecting pipe 8 are closed respectively, and then the connecting pipe 8 can be removed from the fixed pipe 6.

[0035] like Figures 2 to 6 As shown, two groups of round tubes 16 are fixedly installed on the top of each group of gears 14, and a slider 17 is slidably installed in the inner cavity of each group of round tubes 16. A telescopic spring 18 is fixedly installed between the bottom of each group of sliders 17 and the top of the adjacent gear 14, and a ball 19 is rollingly installed on the top of each group of sliders 17. The bottom of each group of support plates 11 is provided with a groove 20 adapted to the ball 19.

[0036] Each group of sliders 17 is evenly provided with exhaust holes 21 , and each group of round tubes 16 is evenly provided with air intake holes 22 on its sidewall. Each group of air intake holes 22 and exhaust holes 21 are connected to the inner cavity of the adjacent round tubes 16 and the baking box 1 .

[0037] When the output shaft of the motor 10 drives each group of support plates 11 to rotate through the baking table 9, the gear 14 will rotate in the ring gear 15. The gear 14 rotates on the support plate 11 through the rotating rod 12. When the gear 14 rotates, it will drive the round tube 16 on its top to move synchronously. Through the setting of the ball 19 and the groove 20, the gear 14 drives the round tube 16 to rotate, which will cause the ball 19 to move out of the inner cavity of the groove 20 and move to the bottom of the support plate 11. At this time, the ball 19 will push the slider 17 to slide downward in the inner cavity of the round tube 16 and squeeze the telescopic spring 18. When the ball 19 moves to the position of the next group of grooves 20, under the action of the telescopic spring 18, the telescopic spring 18 returns to its initial state. In the initial state, the slider 17 drives the ball 19 to move upward to the initial position, so that the ball 19 can move into the inner cavity of the groove 20 and hit it. At this time, each group of gears 14 will cause the ball 19 thereon to reciprocate and hit the inner cavity of the adjacent groove 20 during the rotation process, and make each group of support plates 11 vibrate. The shock wave will be transmitted to the baking table 9 to vibrate the biomass raw materials. Through vibration, the adhesion between the biomass raw materials can be reduced, ensuring good fluidity of the raw materials in the reactor, thereby achieving more uniform heating. At the same time, it can help the biomass particles to contact more closely, which can effectively improve the heat conduction efficiency and promote the uniform distribution of heat, further improving the baking efficiency and collection efficiency.

[0038] During the rotation of the gear 14, the slider 17 slides up and down in the inner cavity of the circular tube 16. When the slider 17 moves downward, the slider 17 squeezes the gas in the inner cavity of the circular tube 16 below it and discharges it into the inner cavity of the baking box 1 through the exhaust hole 21. When the slider 17 moves upward, the slider 17 draws the gas in the inner cavity of the baking box 1 into the inner cavity of the circular tube 16 through the suction hole 22 and is placed below the slider 17. At this time, during the rotation of the gear 14, the slider 17 can reciprocally draw the gas in the inner cavity of the baking box 1 and discharge it into the inner cavity of the baking box 1 again. At the same time, the gear 14 rotates and performs a circular motion along the ring gear 15, which can effectively improve the fluidity of the gas in the inner cavity of the baking box 1 and make the gas temperature in the baking cavity more uniform, thereby achieving more uniform heating, and further improving the baking efficiency and collection efficiency.

[0039] like Figure 2 and Figure 4 As shown, a mesh ring 23 is provided between each set of fixed plates 13 , and the mesh ring 23 is fixedly installed on the top of the baking table 9 .

[0040] Before baking, the biomass fuel is placed in the mesh ring 23. The setting of the mesh ring 23 can protect and support the biomass raw materials inside, reduce the loss of heat radiation during the long baking process, and reduce the escape of gas generated by baking. It can optimize the collection of gas, and with the cooperation of vibration, it can help to evenly distribute the vibration force and reduce the damage to the raw material structure caused by local concentrated stress.

[0041] like Figure 1 、 Figure 2 and Figure 4 As shown, a heat conducting plate 1 26 is fixedly mounted on the inner wall of one side of the baking oven 1. A heat conducting plate 25 is fixedly mounted on the top of the baking oven 1 near the heat conducting plate 1 26. Heat conducting rods 27 are evenly fixedly mounted between the heat conducting plate 25 and the heat conducting plate 1 26. Heat conducting rings 24 are evenly mounted on the outer wall of the delivery pipe 3. Each set of heat conducting rings 24 is fixedly mounted to the top of the heat conducting plate 25.

[0042] An insulation frame 28 is provided on the outer side of the top of the delivery pipe 3 , and the insulation frame 28 is fixedly installed on the top of the baking box 1 and the collection box 2 .

[0043] The first heat conducting plate 26 can transfer the baking temperature in the baking oven 1 to the second heat conducting plate 25 via the heat conducting rod 27. The second heat conducting plate 25 then transfers the temperature to the multiple sets of heat conducting rings 24. The heat conducting rings 24 can be used to insulate the delivery pipe 3. The heat insulation frame 28 can also be used to insulate the temperature inside the delivery pipe 3, thereby preventing heat loss from the gas in the delivery pipe 3 and effectively improving the subsequent liquefaction effect of the gas in the delivery pipe 3.

[0044] like Figure 4 、 Figures 6 to 8 As shown, a circular frame 29 is provided above the condenser 5, and the circular frame 29 is rotatably installed with the inner wall of the delivery pipe 3. A fixing rod 30 is provided in the circular frame 29, and a connecting plate 31 is evenly fixedly installed between the fixing rod 30 and the inner wall of the circular frame 29. A fan blade 32 is fixedly installed on the top of the fixing rod 30, and the fan blade 32 is rotatably installed with the inner wall of the delivery pipe 3.

[0045] A one-way valve is fixedly installed in the inner cavity of each group of exhaust holes 21 and intake holes 22, and each group of telescopic springs 18 is in a compressed state in its initial state.

[0046] A mounting pipe 33 is fixedly installed at the bottom of one side of the collecting box 2 , and valves are installed on the fixed pipe 6 , the connecting pipe 8 and the mounting pipe 33 .

[0047] Through the arrangement of the one-way valves in the exhaust hole 21 and the intake hole 22, the gas in the inner cavity of the circular tube 16 can only be discharged through the exhaust hole 21, and the gas in the baking oven 1 is sucked into the baking oven 1 through the intake hole 22. When the gas in the delivery pipe 3 passes through the fan blades 32, it will drive the fan blades 32 to rotate. When the fan blades 32 rotate, the fixing rod 30 will drive the circular frame 29 to rotate on the inner cavity wall of the delivery pipe 3 through the connecting plate 31. By arranging multiple groups of connecting plates 31 and setting the distance between the multiple groups of connecting plates 31 in the vertical direction, when the fixing rod 30 drives the circular frame 29 to rotate through the connecting plate 31, the flow path of the gas in the delivery pipe 3 can be changed and the flow rate of the gas can be slowed down, which can extend the contact time of these gases with the condenser 5, thereby effectively improving the liquefaction effect of the condensable gas.

[0048] Working principle: First, open the sealed movable door on the front wall of the baking box 1, then place the biomass raw materials to be baked into the mesh ring 23 and place it on the top of the baking table 9, then close the sealed movable door, open the baking box 1 to heat and bake the biomass raw materials, turn on the motor 10 to drive the baking table 9 to rotate, and the baking table 9 will drive the gear 14 to rotate in the gear ring 15 and move in a circular motion, and the rotating rod 12 will drive the fixed plate 13 to rotate to achieve uniform temperature in the baking box 1. While the gear 14 rotates, the ball 19 and the groove 20 cooperate, and under the action of the telescopic spring 18, the ball 19 will reciprocate and hit the inner cavity of the groove 20 and produce a friction force on the support plate 11. The sliding block 17 reciprocates up and down during the vibration process, sucking the gas in the baking box 1 back and forth and discharging it into the baking box 1 again, thereby improving the fluidity of the gas in the baking box 1 and improving the baking efficiency. The gas generated by baking will flow into the delivery pipe 3, and the delivery pipe 3 can be kept warm by the heat conductive ring 24. When the gas in the delivery pipe 3 passes through the fan blades 32, it drives the fixing rod 30 and the connecting plate 31 to rotate, slowing down the flow rate of the gas and extending the contact time of the gas with the condenser 5, thereby improving the liquefaction effect. After liquefaction, the condensable gas flows into the collection box 2 for collection, and the non-condensable gas is discharged into the collection box 2 and absorbed and collected by the elastic collection bag 7.

[0049] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A biomass torrefaction condensable gas collection device, characterized in that: The invention comprises a baking box (1), wherein a collecting box (2) is fixedly mounted on one side of the baking box (1), a conveying pipe (3) is fixedly mounted on the top of the baking box (1) near the collecting box (2), the other end of the conveying pipe (3) passes through the collecting box (2) and extends into the collecting box (2), a condenser (4) is fixedly mounted on one side of the collecting box (2), a condensing pipe (5) is arranged in the inner cavity of the conveying pipe (3), the condensing pipe (5) is fixedly mounted on the condenser (4), a fixing pipe (6) is fixedly mounted on one side of the collecting box (2), an elastic collecting bag (7) is arranged on the side of the fixing pipe (6) away from the collecting box (2), a connecting pipe (8) is fixedly mounted on one end of the elastic collecting bag (7), the connecting pipe (8) is threadedly mounted on the fixing pipe (6), and a rotating assembly is arranged in the collecting box (2).

2. The biomass torrefaction condensable gas collection device according to claim 1, characterized in that: The rotating assembly comprises a baking table (9) rotatably mounted in the baking box (1); a motor (10) is fixedly mounted on the bottom of the baking box (1); an output end of the motor (10) passes through the baking box (1) and is fixedly mounted on the baking box (9); the output end of the motor (10) is rotatably mounted on the baking box (1); support plates (11) are evenly fixedly mounted on the side walls of the baking box (9); a rotating rod (12) is rotatably mounted on each group of the supporting plates (11); a fixing plate (13) is evenly fixedly mounted on the side walls of each group of the rotating rods (12); a gear (14) is fixedly mounted on the bottom end of each group of the rotating rods (12); a gear ring (15) is fixedly mounted on the top of the baking box (1); and each group of the gears (14) is meshed with the gear ring (15).

3. The biomass torrefaction condensable gas collection device according to claim 2, characterized in that: Two groups of round tubes (16) are fixedly installed on the top of each group of gears (14), a slider (17) is slidably installed in the inner cavity of each group of round tubes (16), a telescopic spring (18) is fixedly installed between the bottom of each group of sliders (17) and the top of the adjacent gear (14), a ball (19) is rotatably installed on the top of each group of sliders (17), and a groove (20) adapted to the ball (19) is provided at the bottom of each group of support plates (11).

4. The biomass torrefaction condensable gas collection device according to claim 3, characterized in that: Each group of the sliders (17) is evenly provided with exhaust holes (21), and each group of the round tubes (16) is evenly provided with air intake holes (22) on the side walls. Each group of the air intake holes (22) and the exhaust holes (21) are connected to the inner cavity of the adjacent round tubes (16) and the baking box (1).

5. The biomass torrefaction condensable gas collection device according to claim 2, characterized in that: A mesh ring (23) is provided between each group of the fixed plates (13), and the mesh ring (23) is fixedly mounted on the top of the baking table (9).

6. The biomass torrefaction condensable gas collection device according to claim 1, characterized in that: A heat conducting plate 1 (26) is fixedly mounted on an inner wall of one side of the baking box (1); a heat conducting plate 2 (25) is fixedly mounted on a side of the top of the baking box (1) close to the heat conducting plate 1 (26); heat conducting rods (27) are evenly fixedly mounted between the heat conducting plate 2 (25) and the heat conducting plate 1 (26); heat conducting rings (24) are evenly mounted on an outer wall of the conveying pipe (3); and each group of the heat conducting rings (24) is fixedly mounted on the top of the heat conducting plate 2 (25).

7. The biomass torrefaction condensable gas collection device according to claim 1, characterized in that: A heat preservation frame (28) is arranged on the outer side of the top of the conveying pipe (3), and the heat preservation frame (28) is fixedly mounted on the top of the baking box (1) and the collecting box (2).

8. The biomass torrefaction condensable gas collection device according to claim 1, characterized in that: A circular frame (29) is arranged above the condenser tube (5), and the circular frame (29) is rotatably mounted on the inner wall of the delivery tube (3). A fixing rod (30) is arranged inside the circular frame (29), and a connecting plate (31) is evenly fixedly mounted between the fixing rod (30) and the inner wall of the circular frame (29). A fan blade (32) is fixedly mounted on the top of the fixing rod (30), and the fan blade (32) is rotatably mounted on the inner wall of the delivery tube (3).

9. The biomass torrefaction condensable gas collection device according to claim 4, characterized in that: A one-way valve is fixedly installed in the inner cavity of each group of the exhaust holes (21) and the intake holes (22), and the initial state of each group of the telescopic springs (18) is a compressed state.

10. The biomass torrefaction condensable gas collection device according to claim 1, characterized in that: A mounting pipe (33) is fixedly mounted at the bottom of one side of the collecting box (2), and valves are installed on the fixed pipe (6), the connecting pipe (8) and the mounting pipe (33).

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