Flue-cured tobacco device and flue-cured tobacco method

Abstract

The tobacco curing device comprises a machine body, a first mounting cavity and a second mounting cavity are formed in the bottom end of the interior of the machine body, a heat exchange core is fixedly mounted at the top end of the interior of the first mounting cavity, and a dehumidification evaporator is mounted at the end, located in the second mounting cavity, of the interior of the first mounting cavity; air return openings are formed in the bottom of the inner wall of the first mounting cavity at equal intervals, a separator and a compressor are installed at the end, located in the first mounting cavity, of the interior of the second mounting cavity, and an electric control system is installed at the end, away from the separator, of the interior of the second mounting cavity. And the temperature can be conveniently matched with the dew point temperature of the dehumidification evaporator, the dehumidification evaporator can condense water for dehumidification, after dehumidification, air is heated through the heat exchange core body in a cooling and heating alternating mode, the air enters the inner condenser for heating after being heated, and the temperature is higher.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco curing devices, and in particular to a tobacco curing device and a tobacco curing method. Background Art

[0002] Dryers are used in many fields, including fruit and vegetable products, medicinal products, industrial products, etc. They have the advantages of low energy consumption, low environmental pollution, and a wide range of applications. The current dehumidifiers on the market only have two heat exchangers (i.e., condenser and dehumidification evaporator), no heat exchange core, and a single unit function. The unit cannot recycle and reuse high-temperature and high-humidity air, which affects energy efficiency, especially in the tobacco leaf drying process. It is impossible to effectively control the temperature and thus meet the process requirements of tobacco leaf drying; the installation cavity of the compressor, separator and electronic control system of the existing tobacco-curing device cannot be well moisture-proof, which easily causes internal components to be damaged due to moisture. During the operation of the electronic control system, its electrical components are prone to generate a lot of heat, and the heat dissipation effect is poor only through the heat dissipation port, which easily leads to electrical component failure; and the centrifugal fan of the existing tobacco-curing device is installed inside the body and wrapped by sheet metal, which is difficult to repair, maintain and replace. For this reason, we propose a tobacco-curing device and a tobacco-curing method. Summary of the invention

[0003] The object of the present invention is to provide a tobacco curing device and a tobacco curing method to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tobacco curing device comprises a body, wherein a first installation cavity and a second installation cavity are respectively provided at the bottom end of the body, a heat exchange core is fixedly provided at the top end inside the first installation cavity, a dehumidification evaporator is provided at one end of the first installation cavity located at the second installation cavity, return air ports are equidistantly provided at the bottom of the inner wall of the first installation cavity, a separator and a compressor are respectively provided at one end of the second installation cavity located at the first installation cavity, an electric control system is provided at one end of the second installation cavity away from the separator, a moisture-proof mechanism and a heat dissipation mechanism are respectively provided in the second installation cavity, a third installation cavity and a fourth installation cavity are respectively provided at the top end of the body, the third installation cavity is located directly above the first installation cavity, and the fourth installation cavity is located at An inner condenser is installed in the third installation cavity just above the second installation cavity, and an electric auxiliary is fixedly installed on the surface of the inner condenser, an outer condenser is installed in the fourth installation cavity, and two liquid storage tanks are arranged outside the outer condenser in the fourth installation cavity, the inner condenser is connected to the compressor and the dehumidification evaporator through a pipe, and the outer condenser is connected to the heat exchange core through a pipe, and the ends of the liquid outlet pipes of the inner condenser and the outer condenser are respectively connected to the two liquid storage tanks, a controller is installed on the side wall of the body, a centrifugal fan is installed at one end of the top of the body located in the third installation cavity, the air inlet end of the centrifugal fan is connected to the inside of the third installation cavity, an outer rotor is installed at one end of the top of the body away from the centrifugal fan, and an alarm is installed outside the centrifugal fan and the outer rotor at the top of the body.

[0005] Preferably, a fixing plate is fixedly connected to the inner wall of the first mounting cavity, and a mounting rod is fixedly connected to the top of the inner wall of the first mounting cavity and the top of the fixing plate. A V-shaped groove is provided on the surface of the mounting rod, and the four corners of the heat exchange core are slidably inserted in the V-shaped grooves on the four mounting rods. Openings are provided at both ends of the first mounting cavity, and sealing plates are fixedly connected to the openings by screws, and the two ends of the heat exchange core are respectively in contact with two sealing plates.

[0006] Preferably, a water baffle is installed between the top of the first installation cavity and the bottom of the fixed plate, and the bottom end of the water baffle is inclined toward the dehumidification evaporator, and both ends of the water baffle are integrally connected with connecting plates, and the top of the first installation cavity and the bottom of the fixed plate are symmetrically provided with card grooves, and a card block is symmetrically and integrally provided on the side of the connecting plate away from the water baffle, and the card block is slidably connected in the card groove, and a fastening bolt is provided on one side of the connecting plate located on the water baffle, and bolt holes are provided on the top of the first installation cavity and the bottom of the fixed plate, and the end of the fastening bolt is threadedly connected inside the bolt hole.

[0007] Preferably, the moisture-proof mechanism includes a second mounting plate and a desiccant placement groove, one end of the second mounting cavity is fixedly connected to the second mounting plate by screws, one side of the second mounting plate located inside the second mounting cavity is equidistantly fixedly connected to the desiccant placement groove, and desiccant is arranged in the desiccant placement groove.

[0008] Preferably, the heat dissipation mechanism includes a first mounting plate, a temperature sensor and a cooling fan, a temperature sensor is installed on the inner wall of the second mounting cavity, the end of the second mounting cavity away from the second mounting plate is fixedly connected to the first mounting plate by screws, a heat dissipation port is provided on the surface of the first mounting plate, a cooling fan is fixedly installed on one side of the first mounting plate located inside the second mounting cavity, an air outlet end of the cooling fan is connected to the heat dissipation port, air vents are equidistantly provided on the surface of the second mounting plate between two adjacent desiccant placement slots, and a dust filter is provided in the heat dissipation port.

[0009] Preferably, a protective plate is fixedly connected to the bottom of the inner wall of the first installation cavity, and the protective plate is located between the two slots. Vertical connecting openings are equidistantly opened on the top of the protective plate, and a filter is arranged in the connecting opening. The bottom end of the filter is cooperatively connected to the return air outlet.

[0010] Preferably, tightening bolts are provided at the four corners of the top of the protective plate, and fixing holes are equidistantly provided at the bottom of the inner wall of the first installation cavity, and the ends of the tightening bolts are threadedly connected in the fixing holes.

[0011] Preferably, supporting feet are provided at the four corners of the bottom of the body, the bottom ends of the corresponding two side walls of the body are symmetrically fixedly connected with support plates, and a hydraulic cylinder is fixedly installed on the top of the support plate, the piston rod end of the hydraulic cylinder passes through the support plate and is fixedly connected with a slide plate, and the slide plate is slidably connected to the surface of the body, and moving wheels are installed at the bottom of the slide plate.

[0012] Preferably, a mounting seat is fixedly connected to the bottom of the centrifugal fan, and screw holes are provided at four corners of the top of the mounting seat. The mounting seat at the bottom of the centrifugal fan is fixedly connected to the top of the body by fixing screws.

[0013] A tobacco curing method, comprising any one of the tobacco curing devices described above, comprising the following steps:

[0014] Step 1: The moisture evaporated from the tobacco leaves is sucked into the return air port and reaches the heat exchange core. After cooling down in the heat exchange core, it is placed in the dehumidification evaporator for dehydration. After dehydration, it becomes dry air and then returns to the heat exchange core for further heating.

[0015] Step 2: The heated gas flows into the third installation cavity, and the gas in the third installation cavity is heated to a high temperature through the cooperation of the internal condenser and the electric assist;

[0016] Step 3: Finally, the centrifugal fan starts working and sends dry hot air to the tobacco flue-curing room to dry the tobacco leaves. During this process, the external condenser plays a role in constant temperature control, and the condensed water from the internal and external condensers is collected through two liquid storage tanks.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Compared with the traditional tobacco flue-curing machine, the present invention adds a heat exchange core, which can alternately cool the humid return air to make it hot and cold, so that the temperature matches the dew point temperature of the dehumidification evaporator, allowing the dehumidification evaporator to condense water and dehumidify. After dehumidification, the air passes through the heat exchange core again to alternately cool and hot and then heat it. After the air temperature is heated, it enters the condenser for heating, making the temperature higher.

[0019] 2. The present invention installs the centrifugal fan that was previously built-in externally. The external installation of the centrifugal fan can reduce the time for on-site inspection, maintenance and replacement, thereby reducing the loss of baked materials; it can also free up the internal space of the sheet metal to provide a larger space for air circulation.

[0020] 3. The present invention can achieve better moisture-proof effect by arranging a moisture-proof mechanism and a heat dissipation mechanism in the second installation cavity. Through the coordinated arrangement of the temperature sensor, the heat dissipation fan and the controller, intelligent heat dissipation inside the second installation cavity can be achieved, thereby ensuring the normal use of the power components.

[0021] 4. The present invention provides openings in the first installation cavity, the second installation cavity, the third installation cavity and the fourth installation cavity, and seals the openings by fixing plates with screws, thereby facilitating the inspection and maintenance of internal components.

[0022] 5. The present invention provides a detachable protective plate at the return air outlet, and a filter net is provided on the protective plate, so that the air sucked out of the return air outlet can be filtered to prevent impurities from entering the heat exchange core, which would cause the accumulation of impurities inside the heat exchange core during long-term use and affect the wind transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal connection structure of the body of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal connection structure of the body of the present invention;

[0026] Figure 4 It is a schematic structural diagram of the enlarged view of point B of the present invention;

[0027] Figure 5 This is a schematic structural diagram of the enlarged view of point A of the present invention;

[0028] Figure 6 It is a schematic diagram of the main view structure of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the expanded view of the present invention;

[0030] Figure 8 It is a schematic structural diagram of the moisture-proof mechanism and the heat dissipation mechanism of the present invention.

[0031] In the figure: 1, body; 2, first installation cavity; 3, heat exchange core; 4, dehumidification evaporator; 5, second installation cavity; 6, separator; 7, compressor; 8, moisture-proof mechanism; 9, heat dissipation mechanism; 10, electric control system; 11, temperature sensor; 12, controller; 13, third installation cavity; 14, inner condenser; 15, electric auxiliary; 16, centrifugal fan; 17, fourth installation cavity; 18, outer condenser; 19, liquid storage tank; 20, outer rotor; 21, alarm device; 22, first mounting plate; 23, second mounting plate; 24, vent; 25, desiccant placement slot; 26, heat dissipation port; 27, dust filter; 28, cooling fan; 29, return air port; 30, fixing plate; 31, mounting rod; 32, water baffle; 33, slot; 34, connecting plate; 35, fastening bolt; 36, protective plate; 37, filter; 38, tightening bolt; 39, support plate; 40, hydraulic cylinder; 41, slide plate; 42, moving wheel. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments 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.

[0033] See also Figure 1-8 The present invention provides a technical solution: a tobacco curing device, comprising a body 1, wherein a first installation cavity 2 and a second installation cavity 5 are respectively provided at the bottom end inside the body 1, a heat exchange core 3 is fixedly installed at the top end inside the first installation cavity 2, and a dehumidification evaporator 4 is installed in the first installation cavity 2 at one end of the second installation cavity 5.

[0034] It should be noted that by adding the heat exchange core 3, the return humid air can be alternately cooled and heated and then cooled, so that the temperature matches the dew point temperature of the dehumidification evaporator 4, allowing the dehumidification evaporator 4 to condense water and then dehumidify. After dehumidification, the air passes through the heat exchange core 3 again to alternate between cold and hot and then heat up. After the air temperature is heated, it enters the internal condenser 14 for heating, making the temperature higher.

[0035] Return air ports 29 are equidistantly provided at the bottom of the inner wall of the first installation cavity 2, a separator 6 and a compressor 7 are respectively installed in the second installation cavity 5 at one end of the first installation cavity 2, an electric control system 10 is installed in the second installation cavity 5 at one end away from the separator 6, and a moisture-proof mechanism 8 and a heat dissipation mechanism 9 are respectively provided in the second installation cavity 5.

[0036] It should be noted that the compressor 7 can provide a compressed medium (usually air or refrigerant), which is directly connected to the internal condenser 14 .

[0037] A third installation cavity 13 and a fourth installation cavity 17 are respectively provided at the top of the interior of the machine body 1. The third installation cavity 13 is located directly above the first installation cavity 2, and the fourth installation cavity 17 is located directly above the second installation cavity 5. An inner condenser 14 is installed in the third installation cavity 13, and an electric auxiliary 15 is fixedly installed on the surface of the inner condenser 14. An outer condenser 18 is installed in the fourth installation cavity 17, and two liquid storage tanks 19 are provided outside the outer condenser 18 in the fourth installation cavity 17. The inner condenser 14 is connected to the compressor 7 and the dehumidification evaporator 4 through a pipeline.

[0038] It should be noted that the internal condenser 14 is mainly used to remove heat from the compressed medium. It is connected to the compressor 7 through a pipeline. The internal condenser 14 is provided with an input and an output port for circulating the medium. The dry air can be heated by the electric assist 15 to facilitate the high-temperature dry air to bake the tobacco leaves.

[0039] The external condenser 18 is connected to the heat exchange core 3 through a pipeline, the ends of the liquid outlet pipes of the internal condenser 14 and the external condenser 18 are respectively connected to two liquid storage tanks 19, a controller 12 is installed on the side wall of the body 1, a centrifugal fan 16 is installed at one end of the top of the body 1 located at the third installation cavity 13, the air inlet end of the centrifugal fan 16 is connected to the inside of the third installation cavity 13, an outer rotor 20 is installed at one end of the top of the body 1 away from the centrifugal fan 16, and an alarm 21 is installed on the top of the body 1 outside the centrifugal fan 16 and the outer rotor 20.

[0040] It should be noted that when the present invention is in use, the moisture evaporated from the tobacco leaves is sucked toward the return air outlet 29 and reaches the heat exchange core 3. After being cooled by the heat exchange core 3, it is placed in the dehumidification evaporator 4 for dehydration. After being dehydrated, it becomes dry air and then returns to the heat exchange core 3 for further heating. The heated gas goes to the inside of the third installation cavity 13. Through the coordinated action of the internal condenser 14 and the electric assist 15, the gas inside the third installation cavity 13 is raised to a high temperature. Finally, the centrifugal fan 16 works to send the dry hot air to the tobacco flue-curing room to dry the tobacco leaves. In this process, the external condenser 18 plays a role of constant temperature control. The condensed water of the internal condenser 14 and the external condenser 18 is collected by two liquid storage tanks 19. The tobacco flue-curing machine is equipped with a Bluetooth connection function. The user can remotely monitor the smoking process and even remotely control it when necessary. It is equipped with an intelligent alarm system. An alarm is provided on the top of the machine body 1. The alarm 21 sounds an alarm in the event of abnormal temperature, excessive smoke concentration or other abnormal conditions, and can send notifications to users through mobile phone applications to ensure the safety and stability of the fumigation process. When the temperature inside the second installation cavity 5 is lower than the value set by the temperature sensor 11, the heat generated by the operation of the electronic control system 10 is dissipated through multiple vents 24. When the temperature value inside the second installation cavity 5 exceeds the value set by the temperature sensor 11, the temperature sensor 11 detects the signal and transmits the signal to the controller 12. The controller 12 controls the cooling fan 28 to operate, so that the outside air enters the second installation cavity 5 through the vents 24, and the hot air is discharged through the heat dissipation port 26, thereby accelerating the air circulation inside the second installation cavity 5 and achieving efficient heat dissipation. The desiccant inside the desiccant placement slot 25 can dry the humid environment inside the second installation cavity 5 to prevent the components from getting damp.

[0041] A fixing plate 30 is fixedly connected to the inner wall of the first mounting cavity 2, and a mounting rod 31 is fixedly connected to the top of the inner wall of the first mounting cavity 2 and the top of the fixing plate 30. A V-shaped groove is provided on the surface of the mounting rod 31, and the four corners of the heat exchange core 3 are slidably inserted in the V-shaped grooves on the four mounting rods 31. Openings are provided at both ends of the first mounting cavity 2, and sealing plates are fixedly connected to the openings by screws, and the two ends of the heat exchange core 3 are respectively in contact with two sealing plates.

[0042] It should be noted that openings are provided at both ends of the first installation cavity 2, and the heat exchange core 3 can be detachably installed inside the first installation cavity 2. When installing the heat exchange core 3, the sealing plate at one end of the first installation cavity 2 will be opened, and the heat exchange core 3 will be fitted into the V-shaped groove between the four installation rods 31, and then the first installation cavity 2 will be installed and closed by the sealing plate, so that the heat exchange core 3 is firmly installed inside the first installation cavity 2, which facilitates the maintenance of the heat exchange core 3.

[0043] A water baffle plate 32 is installed between the top of the first installation cavity 2 and the bottom of the fixed plate 30, and the bottom end of the water baffle plate 32 is inclined toward the dehumidification evaporator 4, and both ends of the water baffle plate 32 are integrally connected with connecting plates 34, and the top of the first installation cavity 2 and the bottom of the fixed plate 30 are symmetrically provided with card grooves 33, and the side of the connecting plate 34 away from the water baffle plate 32 is symmetrically provided with a card block, and the card block is slidably connected in the card groove 33, and the connecting plate 34 is located on one side of the water baffle plate 32. A fastening bolt 35 is provided, and the top of the first installation cavity 2 and the bottom of the fixed plate 30 are provided with bolt holes, and the end of the fastening bolt 35 is threadedly connected inside the bolt hole.

[0044] It should be noted that the water baffle 32 can adjust and control the flow direction or distribution of the fluid to prevent water from entering the return air port 29 . The water baffle 32 can be detachably installed in the first installation cavity 2 , which facilitates the disassembly and cleaning of the water baffle 32 .

[0045] The moisture-proof mechanism 8 includes a second mounting plate 23 and a desiccant placement groove 25. One end of the second mounting cavity 5 is fixedly connected to the second mounting plate 23 by screws. One side of the second mounting plate 23 located inside the second mounting cavity 5 is equidistantly fixedly connected to the desiccant placement groove 25, and desiccant is arranged in the desiccant placement groove 25.

[0046] It should be noted that the second mounting plate 23 can be detachably installed in the second mounting cavity 5 to seal the second mounting cavity 5. After the second mounting plate 23 is removed, desiccant can be placed in the desiccant placement groove 25, and then the second mounting plate 23 can be installed, so that the desiccant placement groove 25 containing desiccant can absorb the humid air inside the second mounting cavity 5, keep the inside of the second mounting cavity 5 dry, and prevent the electrical components from getting damp.

[0047] The heat dissipation mechanism 9 includes a first mounting plate 22, a temperature sensor 11 and a heat dissipation fan 28. The temperature sensor 11 is installed on the inner wall of the second mounting cavity 5. The end of the second mounting cavity 5 away from the second mounting plate 23 is fixedly connected to the first mounting plate 22 by screws. A heat dissipation port 26 is opened on the surface of the first mounting plate 22. A heat dissipation fan 28 is fixedly installed on one side of the first mounting plate 22 located inside the second mounting cavity 5. The air outlet end of the heat dissipation fan 28 is connected to the heat dissipation port 26. Ventilation holes 24 are equidistantly opened on the surface of the second mounting plate 23 between two adjacent desiccant placement grooves 25, and a dust filter 27 is arranged in the heat dissipation port 26.

[0048] It should be noted that when the temperature inside the second installation cavity 5 is lower than the value set by the temperature sensor 11, the heat generated by the operation of the electronic control system 10 is dissipated through the multiple air vents 24. When the temperature inside the second installation cavity 5 exceeds the value set by the temperature sensor 11, the temperature sensor 11 detects the signal and transmits the signal to the controller 12. The controller 12 controls the cooling fan 28 to operate, so that the outside air enters the second installation cavity 5 through the air vents 24 and the hot air is discharged through the heat dissipation port 26, thereby accelerating the air circulation inside the second installation cavity 5 and achieving efficient heat dissipation.

[0049] A protective plate 36 is fixedly connected to the bottom of the inner wall of the first installation cavity 2, and the protective plate 36 is located between the two slots 33. The top of the protective plate 36 is equidistantly provided with vertical connecting openings, and a filter screen 37 is arranged in the connecting opening. The bottom end of the filter screen 37 is connected to the return air outlet 29.

[0050] It should be noted that, by providing the protection plate 36 , the return air port 29 can be blocked by the filter 37 thereon to prevent excessive impurities in the sucked air from entering the heat exchange core 3 and affecting the use of the heat exchange core 3 .

[0051] Tightening bolts 38 are provided at the four corners of the top of the protection plate 36 , and fixing holes are equidistantly provided at the bottom of the inner wall of the first installation cavity 2 , and the ends of the tightening bolts 38 are threadedly connected in the fixing holes.

[0052] It should be noted that the tightening bolt 38 provided on the protective plate 36 can be threadedly connected to the fixing hole at the bottom of the first installation cavity 2, so that the protective plate 36 can be detachably installed inside the first installation cavity 2, thereby facilitating its removal for cleaning of the filter screen 37.

[0053] Support feet are provided at the four corners of the bottom of the body 1, and the bottom ends of the corresponding two side walls of the body 1 are symmetrically fixedly connected with support plates 39, and a hydraulic cylinder 40 is fixedly installed on the top of the support plate 39. The piston rod end of the hydraulic cylinder 40 passes through the support plate 39 and is fixedly connected with a slide plate 41, and the slide plate 41 is slidably connected to the surface of the body 1, and a moving wheel 42 is installed at the bottom of the slide plate 41.

[0054] It should be noted that the movement of the device can be achieved through the coordinated arrangement of the hydraulic cylinder 40 and the moving wheel 42. When the body 1 needs to be moved, it is only necessary to control the hydraulic cylinder 40 to work so that the moving wheel 42 is in contact with the ground, thereby facilitating the movement of the device and avoiding the time-consuming and labor-intensive manual moving. The supporting feet at the bottom of the body 1 can provide a stable support for the body 1.

[0055] The bottom of the centrifugal fan 16 is fixedly connected with a mounting seat, and screw holes are provided at the four corners of the top of the mounting seat. The mounting seat at the bottom of the centrifugal fan 16 is fixedly connected to the top of the body 1 by fixing screws.

[0056] A tobacco curing method, comprising any one of the tobacco curing devices described above, comprising the following steps:

[0057] Step 1: The moisture evaporated from the tobacco leaves is sucked toward the return air port 29 and reaches the heat exchange core 3. After cooling down in the heat exchange core 3, it is placed in the dehumidification evaporator 4 for dehydration. After dehydration, it becomes dry air and then returns to the heat exchange core 3 for further heating.

[0058] Step 2: The heated gas flows into the third installation cavity 13, and the gas inside the third installation cavity 13 is heated to a high temperature through the cooperation of the internal condenser 14 and the electric assist 15;

[0059] Step 3: Finally, the centrifugal fan 16 starts working and sends dry hot air to the tobacco curing room to dry the tobacco leaves. During this process, the external condenser 18 plays a role in constant temperature control, and the condensed water of the internal condenser 14 and the external condenser 18 is collected by two liquid storage tanks 19.

[0060] It should be noted that by externally installing the previously built-in centrifugal fan 16, the external installation of the centrifugal fan 16 can reduce the time for on-site inspection, maintenance and replacement, thereby reducing the loss of the baked materials; it can also free up the internal space of the sheet metal to provide a larger space for air circulation.

[0061] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0063] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0064] 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 tobacco curing device, comprising a body (1), characterized in that: A first installation cavity (2) and a second installation cavity (5) are respectively provided at the bottom end of the machine body (1); a heat exchange core (3) is fixedly installed at the top end of the first installation cavity (2); a dehumidification evaporator (4) is installed in the first installation cavity (2) at one end of the second installation cavity (5); return air ports (29) are equidistantly provided at the bottom of the inner wall of the first installation cavity (2); a separator (6) and a compressor (7) are respectively installed in the second installation cavity (5) at one end of the first installation cavity (2); An electric control system (10) is installed at one end of the second installation cavity (5) away from the separator (6), a moisture-proof mechanism (8) and a heat dissipation mechanism (9) are respectively arranged in the second installation cavity (5), a third installation cavity (13) and a fourth installation cavity (17) are respectively opened at the top of the interior of the body (1), the third installation cavity (13) is located directly above the first installation cavity (2), the fourth installation cavity (17) is located directly above the second installation cavity (5), and an internal condenser (17) is installed in the third installation cavity (13). 4), and an electric auxiliary (15) is fixedly installed on the surface of the inner condenser (14), an outer condenser (18) is installed in the fourth installation cavity (17), and two liquid storage tanks (19) are arranged outside the outer condenser (18) in the fourth installation cavity (17), the inner condenser (14) is connected to the compressor (7) and the dehumidification evaporator (4) through a pipeline, and the outer condenser (18) is connected to the heat exchange core (3) through a pipeline, and the ends of the liquid outlet pipes of the inner condenser (14) and the outer condenser (18) The machine body (1) is respectively connected to two liquid storage tanks (19); a controller (12) is installed on the side wall of the machine body (1); a centrifugal fan (16) is installed at one end of the top of the machine body (1) located in the third installation cavity (13); an air inlet end of the centrifugal fan (16) is connected to the inside of the third installation cavity (13); an outer rotor (20) is installed at one end of the top of the machine body (1) away from the centrifugal fan (16); and an alarm (21) is installed at the top of the machine body (1) outside the centrifugal fan (16) and the outer rotor (20).

2. A tobacco curing device according to claim 1, characterized in that: A fixing plate (30) is fixedly connected to the inner wall of the first installation cavity (2), and a mounting rod (31) is fixedly connected to the top of the inner wall of the first installation cavity (2) and the top of the fixing plate (30). A V-shaped groove is provided on the surface of the mounting rod (31), and the four corners of the heat exchange core (3) are slidably inserted into the V-shaped grooves on the four mounting rods (31). Openings are provided at both ends of the first installation cavity (2), and sealing plates are fixedly connected to the openings by screws. The two ends of the heat exchange core (3) are respectively in contact with the two sealing plates.

3. The tobacco curing device according to claim 1, characterized in that: A water baffle (32) is installed between the top of the first installation cavity (2) and the bottom of the fixed plate (30), and the bottom end of the water baffle (32) is inclined toward the dehumidification evaporator (4). Both ends of the water baffle (32) are integrally connected with connecting plates (34). The top of the first installation cavity (2) and the bottom of the fixed plate (30) are symmetrically provided with card grooves (33). A card block is symmetrically and integrally provided on one side of the connecting plate (34) away from the water baffle (32), and the card block is slidably connected in the card groove (33). A fastening bolt (35) is provided on one side of the connecting plate (34) located on the water baffle (32). Bolt holes are provided on the top of the first installation cavity (2) and the bottom of the fixed plate (30), and the end of the fastening bolt (35) is threadedly connected inside the bolt hole.

4. The tobacco flue-curing device according to claim 1, characterized in that: The moisture-proof mechanism (8) comprises a second mounting plate (23) and a desiccant placement groove (25); one end of the second mounting cavity (5) is fixedly connected to the second mounting plate (23) by means of screws; one side of the second mounting plate (23) located inside the second mounting cavity (5) is fixedly connected to the desiccant placement groove (25) at an equal distance; and a desiccant is arranged in the desiccant placement groove (25).

5. The tobacco curing device according to claim 4, characterized in that: The heat dissipation mechanism (9) comprises a first mounting plate (22), a temperature sensor (11) and a heat dissipation fan (28); the temperature sensor (11) is installed on the inner wall of the second mounting cavity (5); the end of the second mounting cavity (5) away from the second mounting plate (23) is fixedly connected to the first mounting plate (22) by screws; a heat dissipation port (26) is provided on the surface of the first mounting plate (22); a heat dissipation fan (28) is fixedly installed on one side of the first mounting plate (22) located inside the second mounting cavity (5); the air outlet end of the heat dissipation fan (28) is connected to the heat dissipation port (26); the surface of the second mounting plate (23) is provided with vent holes (24) equidistantly located between two adjacent desiccant placement grooves (25); a dust filter (27) is provided in the heat dissipation port (26).

6. The tobacco curing device according to claim 3, characterized in that: A protective plate (36) is fixedly connected to the bottom of the inner wall of the first installation cavity (2), and the protective plate (36) is located between the two slots (33). The top of the protective plate (36) is equidistantly provided with vertical communication openings, and a filter screen (37) is arranged in the communication opening. The bottom end of the filter screen (37) is cooperatively connected to the return air outlet (29).

7. The tobacco curing device according to claim 6, characterized in that: Tightening bolts (38) are provided at the four corners of the top of the protective plate (36), and fixing holes are equidistantly provided at the bottom of the inner wall of the first installation cavity (2), and the ends of the tightening bolts (38) are threadedly connected in the fixing holes.

8. The tobacco curing device according to claim 1, characterized in that: Support feet are arranged at the four corners of the bottom of the machine body (1), and the bottom ends of the corresponding two side walls of the machine body (1) are symmetrically fixedly connected with support plates (39), and a hydraulic cylinder (40) is fixedly installed on the top of the support plate (39), and the piston rod end of the hydraulic cylinder (40) passes through the support plate (39) and is fixedly connected with a slide plate (41), and the slide plate (41) is slidably connected to the surface of the machine body (1), and a moving wheel (42) is installed at the bottom of the slide plate (41).

9. The tobacco curing device according to claim 1, characterized in that: The bottom of the centrifugal fan (16) is fixedly connected to a mounting seat, and screw holes are provided at the four corners of the top of the mounting seat. The mounting seat at the bottom of the centrifugal fan (16) is fixedly connected to the top of the machine body (1) by fixing screws.

10. A tobacco flue-curing method, comprising a tobacco flue-curing device according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: The moisture evaporated from the tobacco leaves is sucked toward the return air port and reaches the heat exchange core (3). After cooling down through the heat exchange core (3), the moisture is placed in the dehumidification evaporator (4) for dehydration. After dehydration, the moisture becomes dry air and then returns to the heat exchange core (3) for further heating. Step 2: The heated gas flows into the third installation cavity (13), and the gas inside the third installation cavity (13) is heated to a high temperature through the cooperation of the internal condenser (14) and the electric assist (15); Step 3: Finally, the centrifugal fan (16) starts working to send dry hot air to the tobacco curing room to dry the tobacco leaves. During this process, the external condenser (18) plays a role in constant temperature control, and the condensed water of the internal condenser (14) and the external condenser (18) is collected by two liquid storage tanks (19).

Images