Small energy-saving type heat recovery tobacco baking device

Abstract

The invention relates to the technical field of tobacco baking devices, and discloses a small energy-saving type heat recovery tobacco baking device which comprises a drying bin which serves as a basic component of the whole device and is used for assembling and bearing all processing mechanisms and subordinate structural parts of the processing mechanisms. The glass coaming is arranged at the top of the drying bin and used for checking the tobacco drying condition in the drying bin by a worker and increasing the internal temperature of the drying bin through external sunlight irradiation; and the tobacco turning mechanism is used for turning the tobacco in the drying bin in the drying process. By adding and arranging the waste heat recovery mechanism, in the tobacco baking process, on one hand, recovered heat can be ingeniously stored and reused and circularly conveyed to the starting end of the drying process to preheat fresh air, new heat input is greatly reduced, the energy consumption cost is reduced, on the other hand, the reasonable control of waste heat stabilizes the baking environment temperature, and the energy consumption is reduced. Shock cooling and shock heating are avoided, uniform heating of the tobacco is guaranteed, and drying quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco baking devices, in particular to a small energy-saving heat recovery tobacco baking device. Background Art

[0002] Freshly picked tobacco has a high moisture content, usually around 75%-85%. High moisture content provides a good environment for the growth and reproduction of microorganisms. These microorganisms decompose the organic components in tobacco, causing the tobacco to rot and deteriorate. Through the drying process, the moisture content of tobacco can be reduced to about 12%-18%. This moisture content range can effectively inhibit the growth of microorganisms, thereby extending the shelf life of tobacco and enabling it to be stored for a long time without deterioration. During the drying process, a series of complex chemical reactions will occur inside the tobacco. For example, as the moisture content gradually decreases, the enzymes in the tobacco will catalyze the decomposition of starch into sugars and proteins into amino acids. These small molecules will react with each other to produce compounds with unique flavors during subsequent processing and aging. For example, sugars and amino acids undergo the Maillard reaction to produce pleasant aroma components such as roasted aroma and nutty aroma, which is crucial to the flavor quality of tobacco.

[0003] Tobacco drying is to place the tobacco in a sealed environment with a continuous and slowly rising temperature, and then use the temperature in the sealed environment to dry and discharge the moisture in the tobacco. Therefore, during the tobacco drying process, the temperature in the tobacco drying room will be relatively high and will last for a certain period of time. During the tobacco drying process, since the tobacco in the drying process is stacked, after the drying process begins, the moisture contained in the tobacco begins to evaporate continuously, which will cause the water vapor generated by the drying of the bottom tobacco to rise and adhere to the upper stacked tobacco, causing uneven and incomplete tobacco baking, etc., and increasing the processing time of tobacco drying. Therefore, technical personnel in this field have proposed a small energy-saving heat recovery tobacco baking device to solve the above-mentioned technical problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a small energy-saving heat recovery tobacco baking device, which solves the problem of uneven baking degree of tobacco during baking caused by tobacco stacking.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a small energy-saving heat recovery tobacco baking device, comprising

[0006] The drying chamber, as the basic component of the whole device, is used to assemble and carry various processing mechanisms and their subordinate structural parts;

[0007] Glass panels are installed on the top of the drying bin to allow staff to check the drying status of tobacco in the drying bin and to increase the internal temperature of the drying bin through external sunlight;

[0008] The tobacco turning mechanism is arranged inside the drying bin and is used to turn the tobacco in the drying bin during the drying process;

[0009] A uniform drying mechanism, which is arranged on the top of the drying bin and is used to uniformly dry the tobacco in the drying bin;

[0010] A waste heat recovery mechanism is provided at the bottom of the drying bin and is used to recover and reuse the waste heat generated during the tobacco drying process in the drying bin;

[0011] The circulation separation mechanism is arranged at the rear side of the drying bin and is used to separate the steam generated during the tobacco drying process in the drying bin and recycle the heat energy.

[0012] Preferably, the tobacco turning mechanism includes a movable groove, movable grooves are opened on both sides of the top of the drying bin, movable seats are slidably connected in the movable grooves, a screw rod is rotatably connected in the middle of one inner end of the movable groove, the other end of the screw rod passes through the corresponding position of the movable seat on the same side and is rotatably connected to the middle of the other end of the inner side of the movable groove, servo motors are arranged on both sides of the middle and upper part of the front end of the drying bin, and the rotating shaft of the servo motor passes through the drying bin and is connected to one end of the screw rod on the corresponding side.

[0013] Preferably, the tobacco turning mechanism also includes a cavity, a cavity is opened on one side of the middle part of the movable seat, and the bottom of the cavity passes through the movable seat and extends downward, a driving shaft is rotatably connected to the middle and lower parts between the two movable seats, and both ends of the driving shaft pass through the movable seat and extend into the cavity, a synchronous motor is arranged on one side of the middle part of the top end of the movable seat, pulleys are arranged on both ends of the rotating shaft of the synchronous motor and the driving shaft, and the pulleys on the same side are connected by a connecting belt, an installation roller is arranged in the middle of the outer wall of the driving shaft, and two turning frames are arranged in a circular array on the outer wall of the installation roller.

[0014] Preferably, the uniform drying mechanism includes a top seat, and the top seat is arranged on the top of the glass enclosure, a mounting plate is fixedly connected to the middle and lower inner side of the top seat, a plurality of slots are equidistantly provided on the mounting plate, a plurality of inner cavities are equidistantly provided inside the mounting plate, a plurality of mounting rods are equidistantly fixedly connected to the middle inner side of the inner cavity, heating wires are arranged on the mounting rods, and a blower is arranged in the middle top of the top seat, and an exhaust port of the blower is connected to the middle top of the top seat through a connecting pipe.

[0015] Preferably, the waste heat recovery mechanism includes a base, a base is arranged at the bottom end of the drying bin, an asbestos insulation layer is arranged on the outer wall of the base, a partition is fixedly connected to the middle and upper part of the inner side of the base, the bottom of the partition and the inner wall of the base form a silicone oil cavity, the silicone oil cavity is filled with silicone oil, and a plurality of metal conduction plates are fixedly connected to the bottom of the partition at equal intervals.

[0016] Preferably, the waste heat recovery mechanism also includes a baking chamber, a baking chamber is opened inside the drying bin, a plurality of conduction holes are opened at equal intervals at the bottom of the baking chamber, hot air flow channels are arranged at the four corners of the drying bin, the top end of the hot air flow channel extends to the bottom of the mounting plate, and the bottom end of the hot air flow channel extends to the corresponding position on the top of the metal conduction plate.

[0017] Preferably, the circulation separation mechanism includes a steam exhaust loop, a steam exhaust loop is provided in the middle and upper part of the outer wall of the glass enclosure, and the interior of the steam exhaust loop is connected with the interior of the glass enclosure, a liquefaction tank is fixedly connected to the middle and lower part of the rear side of the drying bin, a dehumidifier is provided in the middle of the top of the liquefaction tank, the air inlet of the dehumidifier is connected with the rear end side of the steam exhaust loop through a connecting pipe, the exhaust port of the dehumidifier is connected with the middle of the top of the liquefaction tank through a connecting pipe, an air intake filter seat is provided in the middle of the rear side of the liquefaction tank, and the air intake filter seat is connected with the interior of the liquefaction tank, and the front middle and upper part of the liquefaction tank is connected with the air inlet of the blower through a connecting pipe.

[0018] Preferably, a feeding door is provided at the lower middle part of the front end of the glass enclosure, and a silicone sealing pad is provided at the connection between the edge of the feeding door and the glass enclosure. The glass enclosure is made of tempered glass, and the outer wall of the glass enclosure is black.

[0019] Working principle: When baking tobacco, the staff will open the feeding door on the glass enclosure, and then place the tobacco to be baked in the baking chamber of the drying bin, and flatten the tobacco to be baked in the baking chamber. Then the staff will reset and close the feeding door to start baking tobacco. First, the uniform drying mechanism is started, and the staff controls the blower on the top seat to operate through the control device. The blower draws the air in the liquefied tank through the connecting pipe, so that a short negative pressure state is formed inside the liquefied tank. At this time, the air in the external environment enters into the interior through the air inlet filter seat on the liquefied tank, and at the same time, the dust in the air is initially filtered out through the air inlet filter seat. After the blower draws the air in the liquefied tank into the top seat, the heating wire on the mounting rod is energized to generate heat, and the heat generated is conducted to the surface of the mounting plate through the inner cavity, so that the mounting plate is heated and the air entering the top seat is heated at the same time. Then, the heated air enters through the slots on the mounting plate. The tobacco is discharged from the drying bin at various positions in the drying bin, thereby evenly drying the tobacco placed at various positions in the drying bin; at the same time, the tobacco turning mechanism is started, and first the staff controls the servo motor on the drying bin to operate through the control device, and the shaft of the servo motor drives the screw rod in the moving groove to rotate synchronously while rotating, and the screw rod drives the moving seat to move synchronously in the moving groove while rotating, so as to realize the forward and backward movement processing of the tobacco turning process, and at the same time, the pulley on the moving seat is started, and the shaft of the pulley drives the pulley on it to rotate synchronously while rotating, and the pulley on the pulley shaft drives the pulleys at both ends of the driving shaft between the moving seat to rotate synchronously through the connecting belt while rotating, and the pulleys at both ends of the driving shaft are driven to rotate while driving the mounting rollers thereon to rotate, and the mounting rollers rotate while synchronously driving the turning frame thereon to rotate, and the turning frame turns the tobacco in the baking chamber up and down while rotating, so as to ensure the uniformity of the tobacco during the drying process, thereby completing the turning processing of the tobacco drying process;At the same time, the waste heat recovery mechanism is started. As the uniform drying mechanism continuously heats and bakes the tobacco in the drying chamber, the temperature in the drying chamber also rises synchronously. At the same time, the high-temperature air in the upper part of the drying chamber is transferred to the partition through the hot air flow channel, thereby causing the partition to heat up. As time goes by, the high temperature in the drying chamber can also be transferred to the partition in the base through the tobacco, causing its temperature to rise synchronously. Then, the heat on the partition is conducted into the silicone oil in the silicone oil chamber through the metal conduction plate at the bottom, thereby causing the temperature of the silicone oil in the silicone oil chamber to rise synchronously. In this way, the excess heat generated inside the silicone oil chamber is dissipated by the silicone oil in the silicone oil chamber. The waste heat can be collected, and the tobacco that cannot be turned over at the bottom of the baking chamber can be baked through the heat collected at the bottom. Then, when the temperature in the drying chamber begins to decrease due to external influences, the asbestos insulation layer on the base can slow down the loss of its internal temperature. At this time, the heat in the silicone oil in the silicone oil chamber is conducted to the partition through the metal conduction plate, and then the temperature conducted on the partition is returned to the inside of the baking chamber through the conduction hole at the bottom of the baking chamber, thereby completing the recovery and reuse of the waste heat. At the same time, the circulating separation mechanism, after the humidity in the drying chamber reaches a certain level, the staff controls the equipment The dehumidifier on the liquefied tank is controlled to operate. After the dehumidifier is started, it draws the air in the steam exhaust loop through the connecting pipe. Due to the negative pressure, the steam in the drying chamber enters the steam exhaust loop together with the air, and then enters the liquefied tank through the dehumidifier. When the air in the external environment enters the liquefied tank through the air inlet filter seat, the high-temperature steam discharged into the liquefied tank by the dehumidifier is affected by the external cold air that has just entered the liquefied tank and is liquefied into water and attached to the inner wall of the liquefied tank. Finally, as time goes by, the attached water on the inner wall of the liquefied tank flows out through its inner wall. The steam moves to the inner bottom of the liquefaction box for collection, and when the water vapor in the high-temperature steam entering the liquefaction box contacts the air entering from the external environment, the dust floating in the air can be adsorbed by the water molecules inside it. At the same time, after the steam in the high-temperature steam is liquefied, the temperature of the remaining dry air does not drop much directly. After mixing with the air entering from the external environment, it can also increase the temperature of the original air entering the top seat, thereby reducing the energy consumption of the heating equipment in the process of heating the air, thereby completing the separation of steam in the tobacco baking process and the recycling and reuse of part of the heat energy in the air. ;

[0020] The present invention provides a small energy-saving heat recovery tobacco baking device. It has the following beneficial effects:

[0021] 1. The present invention greatly improves the baking efficiency by adding and setting a tobacco turning mechanism. The turning action of the mechanism during operation can not only ensure that the heating and ventilation states of each layer of tobacco are consistent, accept the baking conditions in all directions, and avoid local uneven rawness and ripeness, but also in terms of moisture control. This turning process can accelerate the escape of water vapor, promote the rapid precipitation of moisture inside the tobacco, shorten the baking time, reduce costs and increase efficiency. At the same time, the mechanism turns the tobacco in real time during the baking process, and the moisture extracted from the bottom layer of tobacco can be dispersed immediately, thereby effectively preventing it from soaking the upper layer of tobacco, ensuring the overall baking quality is excellent, and the color and quality of the tobacco leaves are optimized.

[0022] 2. The present invention adds and sets a uniform drying mechanism. During baking, the mechanism can achieve uniform air supply processing at various positions, so that the hot air can be evenly distributed in the entire baking space. In this way, the tobacco in each place can get an equal amount of heat supply, which effectively avoids the situation where some tobacco is dried while some is still wet due to local uneven heating, comprehensively guarantees the consistency of tobacco drying degree, greatly improves the overall quality of tobacco drying, ensures that the quality of the output tobacco is more stable and excellent, and is beneficial to subsequent processing and sales.

[0023] 3. The present invention increases and sets a waste heat recovery mechanism. During the tobacco baking process, on the one hand, the recovered heat can be cleverly stored and reused, and circulated to the starting end of the drying process to preheat the incoming air, greatly reduce the new heat input, and reduce energy consumption costs. On the other hand, the reasonable control of waste heat stabilizes the baking environment temperature, avoids sudden cooling and heating, ensures that the tobacco is heated at a uniform speed, and improves the drying quality, helping the tobacco processing industry to move forward in a green and efficient manner from the dual dimensions of energy saving and quality improvement.

[0024] 4. The present invention increases and sets a circulating separation mechanism. When tobacco is baked, firstly, it can efficiently separate the water vapor generated by baking, so that the air humidity is maintained in a reasonable range to ensure normal baking. At the same time, the water vapor is used to absorb dust in the air entering the equipment from the outside, which greatly improves the air cleanliness, creates a high-quality environment for tobacco, and is conducive to improving quality. Secondly, the high-temperature steam after removing moisture can also preheat the air newly entering the equipment, effectively reducing additional energy input and energy consumption costs, helping to make tobacco baking more scientific and efficient from the two aspects of environmental optimization and energy saving and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the rear structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the drying bin of the present invention;

[0028] Figure 4 It is a schematic diagram of the local structure of the mobile seat of the present invention;

[0029] Figure 5 It is a schematic diagram of the local structure of the installation roller of the present invention;

[0030] Figure 6 It is a schematic diagram of the local structure of the top seat of the present invention;

[0031] Figure 7 It is a schematic diagram of the internal structure of the mounting plate of the present invention;

[0032] Figure 8 It is a schematic cross-sectional view of the internal structure of the base of the present invention.

[0033] Among them, 1. drying bin; 2. servo motor; 3. feeding door; 4. steam exhaust loop; 5. top seat; 6. blower; 7. dehumidifier; 8. liquefied tank; 9. glass enclosure; 10. base; 11. air inlet filter seat; 12. movable groove; 13. synchronous motor; 14. hot air flow channel; 15. baking cavity; 16. movable seat; 17. mounting roller; 18. conduction hole; 19. connecting belt; 20. flip frame; 21. screw rod; 22. pulley; 23. drive shaft; 24. slot; 25. mounting plate; 26. inner cavity; 27. mounting rod; 28. heating wire; 29. ​​asbestos insulation layer; 30. partition; 31. metal conduction plate; 32. silicone oil cavity; 33. cavity. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Please refer to the attached Figure 1 - Attachment Figure 2 The embodiment of the present invention provides a small energy-saving heat recovery tobacco baking device, including a drying bin 1, which is used as the basic component of the overall device to assemble and carry various processing mechanisms and their lower structural parts; a glass enclosure 9, which is arranged on the top of the drying bin 1, for the staff to check the tobacco drying conditions in the drying bin 1 and to increase the internal temperature of the drying bin 1 through external sunlight; a feeding door 3 is arranged at the lower middle part of the front end of the glass enclosure 9, and a silicone sealing pad is arranged at the edge of the feeding door 3 and the connection between the glass enclosure 9, the glass enclosure 9 is made of tempered glass, and the outer wall of the glass enclosure 9 is black.

[0036] The addition of the glass panel 9 not only makes it convenient for the staff to check the tobacco baking conditions in the drying bin 1, but also because the black equipment on the glass panel 9 has better heat absorption performance, the sunlight in the external environment can also penetrate into the drying bin 1 through it, thereby reducing the energy consumption of the heating equipment. At the same time, the glass panel 9 uses tempered glass to avoid glass cracking due to excessive temperature difference between the inside and outside of the glass, thereby improving the safety of the glass panel 9 when in use.

[0037] Please see attached Figure 6 - Attachment Figure 7 , a uniform drying mechanism, which is arranged on the top of the drying bin 1 and is used to uniformly dry the tobacco in the drying bin 1;

[0038] The uniform drying mechanism includes a top seat 5, which is arranged on the top of the glass enclosure 9, a mounting plate 25 is fixedly connected to the middle and lower inner side of the top seat 5, a plurality of slots 24 are equidistantly provided on the mounting plate 25, a plurality of inner cavities 26 are equidistantly provided inside the mounting plate 25, a plurality of mounting rods 27 are equidistantly fixedly connected to the inner middle of the inner cavity 26, a heating wire 28 is arranged on the mounting rods 27, a blower 6 is arranged in the middle of the top end of the top seat 5, and an exhaust port of the blower 6 is connected to the middle of the top end of the top seat 5 through a connecting pipe.

[0039] When the uniform drying mechanism is started, the staff controls the air blower 6 on the top seat 5 to run through the control device. The air blower 6 draws the air in the liquefied tank 8 through the connecting pipe, so that a short negative pressure state is formed inside the liquefied tank 8. At this time, the air in the external environment enters into the interior through the air inlet filter seat 11 on the liquefied tank 8, and at the same time, the dust in the air is preliminarily filtered out through the air inlet filter seat 11.

[0040] Then, after the air blower 6 draws the air in the liquefied tank 8 into the top seat 5, the heating wire 28 on the mounting rod 27 is energized to generate heat, and the heat generated is conducted to the surface of the mounting plate 25 through the inner cavity 26, so that the mounting plate 25 is heated and the air entering the top seat 5 is heated at the same time, and then the heated air is discharged to various positions in the drying bin 1 through the slots 24 on the mounting plate 25, so that the tobacco placed at various positions in the drying bin 1 is evenly dried.

[0041] Please see attached Figure 3 - Attachment Figure 5 , a tobacco turning mechanism, which is arranged inside the drying bin 1 and is used to turn over the tobacco in the drying bin 1 during the drying process;

[0042] The tobacco turning mechanism includes a moving groove 12. Moving grooves 12 are opened on both sides of the top of the drying bin 1. Moving seats 16 are slidably connected in the moving grooves 12. A screw rod 21 is rotatably connected to the middle of one inner end of the moving groove 12. The other end of the screw rod 21 passes through the corresponding position of the moving seat 16 on the same side and is rotatably connected to the middle of the other end of the inner side of the moving groove 12. Servo motors 2 are arranged on both sides of the upper and middle part of the front end of the drying bin 1, and the rotating shaft of the servo motor 2 passes through the drying bin 1 and is connected to one end of the screw rod 21 on the corresponding side.

[0043] When the tobacco turning mechanism is started, the staff first controls the servo motor 2 on the drying bin 1 through the control device to operate. The rotating shaft of the servo motor 2 drives the screw rod 21 in the movable groove 12 to rotate synchronously while rotating. The screw rod 21 drives the movable seat 16 to move synchronously in the movable groove 12 while rotating, thereby realizing the forward and backward movement processing during the tobacco turning process.

[0044] The tobacco turning mechanism also includes a cavity 33, and a cavity 33 is opened on one side of the middle part of the movable seat 16, and the bottom of the cavity 33 penetrates the movable seat 16 and extends downward, and the middle and lower parts between the two movable seats 16 are rotatably connected with a drive shaft 23, and both ends of the drive shaft 23 penetrate the movable seat 16 and extend into the cavity 33, and a synchronous motor 13 is arranged on one side of the middle part of the top of the movable seat 16, and pulleys 22 are arranged on the rotating shaft of the synchronous motor 13 and the two ends of the drive shaft 23, and the pulleys 22 on the same side are connected by a connecting belt 19, and a mounting roller 17 is arranged in the middle of the outer wall of the drive shaft 23, and two turning frames 20 are arranged in a circular array on the outer wall of the mounting roller 17.

[0045] At the same time, the pulley 22 on the movable seat 16 is started, and the rotating shaft of the pulley 22 drives the pulley 22 thereon to rotate synchronously while rotating. The pulley 22 on the rotating shaft of the pulley 22 drives the pulleys 22 at both ends of the driving shaft 23 between the movable seat 16 to rotate synchronously through the connecting belt 19. The pulleys 22 at both ends of the driving shaft 23 are driven to rotate and drive the mounting rollers 17 thereon to rotate. The mounting rollers 17 rotate and synchronously drive the turning frame 20 thereon to rotate. The turning frame 20 turns the tobacco in the baking chamber 15 up and down while rotating, thereby ensuring the uniformity of the tobacco during the drying process, thereby completing the turning process of the tobacco during the drying process.

[0046] Please refer to the attached Figure 3 and attached Figure 8 , a waste heat recovery mechanism, which is arranged at the bottom of the drying bin 1 and is used to recover and reuse the waste heat generated during the tobacco drying process in the drying bin 1;

[0047] The waste heat recovery mechanism includes a base 10. The base 10 is arranged at the bottom end of the drying chamber 1. An asbestos insulation layer 29 is arranged on the outer wall of the base 10. A partition 30 is fixedly connected to the middle and upper part of the inner side of the base 10. The bottom of the partition 30 and the inner wall of the base 10 form a silicone oil cavity 32. The silicone oil cavity 32 is filled with silicone oil. A plurality of metal conduction plates 31 are fixedly connected to the bottom of the partition 30 at equal intervals.

[0048] When the waste heat recovery mechanism is started, as the uniform drying mechanism continuously heats and bakes the tobacco in the drying bin 1, the temperature in the drying bin 1 also rises synchronously, and at the same time, the high-temperature air in the upper part of the drying bin 1 is transferred to the partition 30 through the hot air flow duct 14, thereby causing the partition 30 to heat up, and as time goes by, the high temperature in the drying bin 1 can also be transferred to the partition 30 in the base 10 through the tobacco, thereby causing its temperature to rise synchronously, and then the heat on the partition 30 is conducted into the silicone oil in the silicone oil chamber 32 through the metal conduction plate 31 at the bottom thereof, thereby causing the temperature of the silicone oil in the silicone oil chamber 32 to rise synchronously, so that the excess heat generated inside the silicone oil chamber 32 is collected by the silicone oil in the silicone oil chamber 32, and the tobacco that cannot be turned over at the bottom of the baking chamber 15 can also be baked by the heat collected at the bottom.

[0049] The waste heat recovery mechanism also includes a baking chamber 15. The baking chamber 15 is opened inside the drying chamber 1. A plurality of conduction holes 18 are equidistantly opened at the bottom of the baking chamber 1. Hot air flow channels 14 are arranged at the four corners of the drying chamber 1. The top end of the hot air flow channel 14 extends to the bottom of the mounting plate 25, and the bottom end of the hot air flow channel 14 extends to the corresponding position of the top of the metal conduction plate 31.

[0050] Then, when the temperature in the drying chamber 1 begins to decrease due to external influences, the asbestos insulation layer 29 on the base 10 can slow down the loss of internal temperature. At this time, the heat in the silicone oil in the silicone oil chamber 32 is conducted to the partition 30 through the metal conduction plate 31, and then the temperature conducted from the partition 30 is returned to the inside of the baking chamber 15 through the conduction hole 18 at the bottom of the baking chamber 15, thereby completing the recovery and reuse of the remaining heat.

[0051] The circulation separation mechanism is arranged at the rear side of the drying chamber 1 and is used to separate the steam generated during the tobacco drying process in the drying chamber 1 and recycle the heat energy.

[0052] The circulation separation mechanism includes a steam exhaust loop 4, a steam exhaust loop 4 is provided at the middle and upper part of the outer wall of the glass enclosure 9, and the interior of the steam exhaust loop 4 is connected to the interior of the glass enclosure 9, a liquefaction tank 8 is fixedly connected to the middle and lower part of the rear side of the drying chamber 1, a dehumidifier 7 is provided at the middle of the top of the liquefaction tank 8, the air inlet of the dehumidifier 7 is connected to the rear end side of the steam exhaust loop 4 through a connecting pipe, the exhaust port of the dehumidifier 7 is connected to the middle of the top of the liquefaction tank 8 through a connecting pipe, an air intake filter seat 11 is provided in the middle of the rear side of the liquefaction tank 8, and the air intake filter seat 11 is connected to the interior of the liquefaction tank 8, and the front middle and upper part of the liquefaction tank 8 is connected to the air inlet of the blower 6 through a connecting pipe.

[0053] Circulation separation mechanism, after the humidity in the drying bin 1 reaches a certain level, the staff controls the dehumidifier 7 on the liquefaction tank 8 to operate through the control device. After the dehumidifier 7 is started, it draws the air in the steam exhaust loop 4 through the connecting pipe. Due to the negative pressure, the steam in the drying bin 1 enters the steam exhaust loop 4 together with the air, and then enters the liquefaction tank 8 through the transportation of the dehumidifier 7. When the air in the external environment enters the liquefaction tank 8 through the air inlet filter seat 11, the high-temperature steam discharged into the liquefaction tank 8 by the dehumidifier 7 is affected by the external cold air that has just entered the liquefaction tank 8, thereby being liquefied into water and attached to the inner wall of the liquefaction tank 8. Finally, with the passage of time, the attached water on the inner wall of the liquefaction tank 8 flows through its inner wall to the inner bottom of the liquefaction tank 8 for collection.

[0054] When the water vapor in the high-temperature steam entering the liquefaction box 8 comes into contact with the air entering from the external environment, the dust floating in the air can be adsorbed by the water molecules therein. At the same time, after the vapor in the high-temperature steam is liquefied, the temperature of the remaining dry air does not drop much directly. After mixing with the air entering from the external environment, the temperature of the original air entering the top seat 5 can be increased, thereby reducing the energy consumption of the heating equipment in the process of heating the air, thereby completing the separation of steam in the tobacco baking process and the recycling and reuse of part of the heat energy in the air.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small energy-saving heat recovery tobacco baking device, characterized in that: include A drying chamber (1), which is a basic component of the overall device and is used to assemble and carry various processing mechanisms and their subordinate structural components; A glass enclosure (9) is arranged on the top of the drying chamber (1) and is used for workers to check the drying conditions of tobacco in the drying chamber (1) and to increase the internal temperature of the drying chamber (1) through external sunlight; A tobacco turning mechanism, which is arranged inside the drying bin (1) and is used to turn the tobacco in the drying bin (1) during the drying process; A uniform drying mechanism, which is arranged on the top of the drying bin (1) and is used to uniformly dry the tobacco in the drying bin (1); A waste heat recovery mechanism, which is arranged at the bottom of the drying bin (1) and is used to recover and reuse the waste heat generated during the tobacco drying process in the drying bin (1); The circulation separation mechanism is arranged at the rear side of the drying bin (1) and is used to separate the steam generated during the tobacco drying process in the drying bin (1) and to recycle the heat energy.

2. A small energy-saving heat recovery tobacco baking device according to claim 1, characterized in that: The tobacco turning mechanism comprises a moving groove (12), the moving grooves (12) are provided on both sides of the top of the drying bin (1), the moving seats (16) are slidably connected in the moving grooves (12), the middle of one inner end of the moving groove (12) is rotatably connected with a screw rod (21), the other end of the screw rod (21) passes through the corresponding position of the moving seat (16) on the same side and is rotatably connected to the middle of the other inner end of the moving groove (12), and servo motors (2) are provided on both sides of the middle and upper part of the front end of the drying bin (1), and the rotating shaft of the servo motor (2) passes through the drying bin (1) and is connected to one end of the screw rod (21) on the corresponding side.

3. A small energy-saving heat recovery tobacco baking device according to claim 2, characterized in that: The tobacco turning mechanism also includes a cavity (33), a cavity (33) is opened on one side of the middle part of the movable seat (16), and the bottom of the cavity (33) penetrates the movable seat (16) and extends downward, a driving shaft (23) is rotatably connected to the middle and lower parts between the two movable seats (16), and both ends of the driving shaft (23) penetrate the movable seat (16) and extend into the cavity (33), a synchronous motor (13) is arranged on one side of the middle part of the top end of the movable seat (16), and pulleys (22) are arranged on the rotating shaft of the synchronous motor (13) and the two ends of the driving shaft (23), and the pulleys (22) on the same side are connected by a connecting belt (19), a mounting roller (17) is arranged in the middle of the outer wall of the driving shaft (23), and two turning frames (20) are arranged in a circular array on the outer wall of the mounting roller (17).

4. A small energy-saving heat recovery tobacco baking device according to claim 1, characterized in that: The uniform drying mechanism comprises a top seat (5), the top of the glass enclosure (9) is provided with the top seat (5), the inner middle and lower part of the top seat (5) is fixedly connected with a mounting plate (25), the mounting plate (25) is provided with a plurality of slots (24) at equal intervals, the interior of the mounting plate (25) is provided with a plurality of inner cavities (26) at equal intervals, the inner middle part of the inner cavity (26) is fixedly connected with a plurality of mounting rods (27) at equal intervals, the mounting rods (27) are provided with heating wires (28), the middle part of the top end of the top seat (5) is provided with an air blower (6), and the exhaust port of the air blower (6) is connected with the middle part of the top end of the top seat (5) through a connecting pipe.

5. A small energy-saving heat recovery tobacco baking device according to claim 1, characterized in that: The waste heat recovery mechanism comprises a base (10), the base (10) is arranged at the bottom end of the drying chamber (1), an asbestos insulation layer (29) is arranged on the outer wall of the base (10), a partition (30) is fixedly connected to the middle and upper part of the inner side of the base (10), the bottom of the partition (30) and the inner wall of the base (10) form a silicone oil cavity (32), the silicone oil cavity (32) is filled with silicone oil, and a plurality of metal conduction plates (31) are fixedly connected to the bottom of the partition (30) at equal intervals.

6. A small energy-saving heat recovery tobacco baking device according to claim 5, characterized in that: The waste heat recovery mechanism also includes a baking chamber (15), the baking chamber (15) is provided inside the drying chamber (1), a plurality of conduction holes (18) are provided at equal intervals at the bottom of the baking chamber (15), hot air flow channels (14) are provided at the four corners of the drying chamber (1), the top end of the hot air flow channel (14) extends to the bottom of the mounting plate (25), and the bottom end of the hot air flow channel (14) extends to a corresponding position on the top of the metal conduction plate (31).

7. A small energy-saving heat recovery tobacco baking device according to claim 1, characterized in that: The circulation separation mechanism comprises a steam exhaust loop (4), a steam exhaust loop (4) is provided at the middle and upper part of the outer wall of the glass enclosure (9), and the interior of the steam exhaust loop (4) is connected to the interior of the glass enclosure (9), a liquefaction tank (8) is fixedly connected to the middle and lower part of the rear side of the drying chamber (1), a dehumidifier (7) is provided at the middle part of the top end of the liquefaction tank (8), an air inlet of the dehumidifier (7) is connected to one side of the rear end of the steam exhaust loop (4) through a connecting pipe, an exhaust port of the dehumidifier (7) is connected to the middle part of the top end of the liquefaction tank (8) through a connecting pipe, an air intake filter seat (11) is provided at the middle part of the rear side of the liquefaction tank (8), and the air intake filter seat (11) is connected to the interior of the liquefaction tank (8), and the front middle and upper part of the liquefaction tank (8) is connected to the air inlet of the blower (6) through a connecting pipe.

8. A small energy-saving heat recovery tobacco baking device according to claim 1, characterized in that: A feeding door (3) is provided at the lower middle part of the front end of the glass enclosure (9), and a silicone sealing pad is provided at the edge of the feeding door (3) and the connection between the glass enclosure (9). The material of the glass enclosure (9) is tempered glass, and the outer wall of the glass enclosure (9) is black.

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