Four-stage tobacco leaf curing device

Abstract

The utility model relates to the technical field of tobacco leaf curing, and discloses a four-stage tobacco leaf curing device, including a box body; an air conditioning unit, the air conditioning unit including an exhaust port and an air supply port; the air supply port is arranged on one side of the box body and close to the top of the box body, the air supply port is connected to the air source and is provided with an air supply valve; the exhaust port is arranged on the other side of the box body and close to the bottom of the box body, the exhaust port is provided with an exhaust valve; a temperature regulating unit, the temperature regulating unit including a refrigeration mechanism and a heating mechanism; the heating mechanism is arranged at the bottom of the box body; the refrigeration mechanism includes an evaporator, the evaporator is arranged at the top of the box body; a humidity regulating unit, the humidity regulating unit including a water tray and a vent, the water tray is arranged at the bottom of the box body and above the heating mechanism; the vent is arranged at the back of the box body, and an electric closing cover is arranged at the vent to open or close the vent. The problem that the existing tobacco leaf curing condition adjustment precision is low and affects the tobacco leaf quality is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco leaf curing, in particular to a four-stage tobacco leaf curing device. Background Art

[0002] Tobacco leaf maintenance is an important part of ensuring the quality of tobacco leaves and extending their service life. It can effectively prevent tobacco leaf mildew, insect pests and other problems, and promote the aging and quality improvement of tobacco leaves. In the four-stage tobacco leaf maintenance technology, the maintenance process is divided into four stages: natural aging stage, controlled atmosphere mildew prevention and insecticide stage, controlled atmosphere aging stage and controlled atmosphere preservation stage. The four-stage tobacco leaf maintenance has high requirements for the storage and maintenance conditions of tobacco leaves, and it is necessary to adjust the gas concentration, temperature and humidity in the maintenance environment as the maintenance progresses to ensure the quality of tobacco leaves. The existing maintenance warehouse is too large to achieve precise environmental adjustment, and it is still mainly based on manual monitoring and adjustment. The labor intensity of workers is high, and it is difficult to meet the needs of high-quality maintenance of tobacco leaves. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a four-stage tobacco leaf curing device to solve the problem that the existing tobacco leaf curing conditions have low adjustment accuracy and affect the quality of tobacco leaves.

[0004] The utility model solves the above technical problems through the following technical means: a four-stage tobacco leaf curing device, comprising:

[0005] A box body, wherein a plurality of partitions are arranged from top to bottom inside the box body;

[0006] An air conditioning unit, the air conditioning unit comprising an exhaust port and an air supply port; the air supply port is arranged on one side of the box body and close to the top of the box body, the air supply port is connected to the air source and is provided with an air supply valve; the exhaust port is arranged on the other side of the box body and close to the bottom of the box body, the exhaust port is provided with an exhaust valve;

[0007] A temperature regulating unit, the temperature regulating unit comprising a cooling mechanism and a heating mechanism; the heating mechanism is arranged at the bottom of the box; the cooling mechanism comprises an evaporator, the evaporator is arranged at the top of the box;

[0008] The humidity regulating unit comprises a water tray and a vent, wherein the water tray is arranged at the bottom of the box body and above the heating mechanism; the vent is arranged at the back of the box body, and an electric closing cover is arranged at the vent to open or close the vent.

[0009] Furthermore, it also includes a tobacco frame, which is used to hold tobacco and then placed on the partition. The bottom of the tobacco frame is provided with supporting feet to form a channel for air circulation between the bottom of the tobacco frame and the partition.

[0010] Furthermore, each of the partitions is provided with a plurality of groups of limiting slide grooves along the length direction of the partition, and the plurality of groups of limiting slide grooves extend along the width direction of the partition, and each group of the limiting slide grooves is used to cooperate with the bottom supporting feet of the tobacco frame to fix the tobacco frame.

[0011] Furthermore, it also includes a control panel, and the air supply valve, the exhaust valve, the refrigeration mechanism, the heating mechanism and the electric closing cover are all electrically connected to the control panel through cables.

[0012] Furthermore, a temperature and humidity sensor and a gas sensor are arranged on the inner wall of the box, and the temperature and humidity sensor and the gas sensor are electrically connected to the control panel through cables.

[0013] Furthermore, a plurality of doors are arranged on the front of the box body.

[0014] The beneficial effects of the utility model are:

[0015] The utility model adjusts the curing environment of tobacco leaves in the box by arranging an air conditioning unit, a temperature regulating unit and a humidity regulating unit in the box; it satisfies the curing conditions required by tobacco leaves in different curing stages in the four-stage curing technology, and improves the curing quality of tobacco leaves. It solves the problem that the existing tobacco leaf curing condition adjustment precision affects the quality of tobacco leaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0017] Figure 1 This is a schematic diagram of the structure of a four-stage tobacco leaf curing device of the utility model;

[0018] Figure 2 yes Figure 1 A schematic diagram of the structure from another perspective;

[0019] Figure 3 This is a schematic diagram of the internal structure of a four-stage tobacco leaf curing device of the utility model;

[0020] In the above drawings: 1. Box body; 11. Box door; 12. Exhaust port; 13. Air supply port; 14. Partition; 15. Limit slide; 16. Temperature and humidity sensor; 17. Gas sensor; 2. Control panel; 3. Tobacco frame; 31. Support foot; 4. Refrigeration mechanism; 5. Water tray; 6. Heating mechanism; 7. Ventilation port. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the figures may be omitted.

[0022] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the figure. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] like Figure 1-3 As shown, the embodiment of the utility model proposes a four-stage tobacco leaf curing device, comprising:

[0024] The box body 1 has multiple layers of partitions 14 arranged from top to bottom;

[0025] The gas conditioning unit includes an exhaust port 12 and an air supply port 13; the air supply port 13 is arranged on one side of the box body 1 and close to the top of the box body 1, the air supply port 13 is connected to the air source and is provided with an air supply valve; the exhaust port 12 is arranged on the other side of the box body 1 and close to the bottom of the box body 1, the exhaust port 12 is provided with an exhaust valve; in this embodiment, the air source includes nitrogen.

[0026] The temperature regulating unit includes a cooling mechanism 4 and a heating mechanism 6; the heating mechanism 6 is arranged at the bottom of the box 1; the cooling mechanism 4 includes an evaporator, and the evaporator is arranged at the top of the box 1;

[0027] The humidity regulating unit includes a water tray 5 and a vent 7. The water tray 5 is arranged at the bottom of the box 1 and above the heating mechanism 6. The vent 7 is arranged at the back of the box 1. An electric closing cover is arranged at the vent 7 to open or close the vent 7. In this embodiment, three vents 7 are arranged, and each vent 7 is provided with an exhaust fan. The water tray 5 is used to hold pure water, and the pure water evaporates to increase the humidity in the box 1.

[0028] For areas with low air humidity, pure water needs to be placed in the water tray 5 to increase the air humidity in the box 1; for areas with high air humidity, a desiccant can be set in the box 1 to reduce the air humidity in the box 1.

[0029] The specific implementation process of this embodiment includes:

[0030] In this embodiment, the curing environment of tobacco leaves in the box 1 is adjusted by arranging an air conditioning unit, a temperature adjustment unit and a humidity adjustment unit in the box 1, so as to meet the curing conditions required by tobacco leaves in different curing stages in the four-stage curing technology, thereby improving the curing quality of tobacco leaves. The problem that the existing tobacco leaf curing condition adjustment precision is low and affects the tobacco leaf quality is solved.

[0031] In this embodiment, the curing device also includes a tobacco frame 3, which is used to hold tobacco and then placed on the partition 14. A supporting foot 31 is provided at the bottom of the tobacco frame 3 to form a channel for air circulation between the bottom of the tobacco frame 3 and the partition 14.

[0032] In this embodiment, the tobacco frame 3 is in the shape of a rectangular parallelepiped, and the surroundings and bottom of the tobacco frame 3 are all metal meshes, which facilitates gas circulation and improves the curing effect of tobacco leaves. Support legs 31 are respectively fixed at the four corners of the bottom of the tobacco frame 3 by welding. The setting of the support legs 31 can form a channel for air circulation between the bottom of the tobacco frame 3 and the partition 14 on the one hand; and form a channel for the fork of the forklift to enter on the other hand.

[0033] In some embodiments, each partition 14 is provided with a plurality of groups of limiting grooves 15 along the length direction of the partition 14 , and the plurality of groups of limiting grooves 15 extend along the width direction of the partition 14 , and each group of limiting grooves 15 is used to cooperate with the bottom support feet 31 of the tobacco frame 3 to limit the tobacco frame 3 .

[0034] In this embodiment, a plurality of doors 11 are provided on the front of the box body 1 .

[0035] In this embodiment, three groups of limiting slides 15 are arranged on each layer of partitions 14, and each group of limiting slides 15 includes two limiting slides 15. After the forklift forks the tobacco frame 3 into the box body 1 and places the supporting feet 31 on both sides of the bottom of the tobacco frame 3 in one-to-one correspondence on the two limiting slides 15, it is pushed into the box body 1 along the limiting slides 15. In this embodiment, two layers of partitions 14 are arranged from top to bottom inside the box body 1, and each layer of partitions 14 can be disassembled and connected to the inside of the box body 1, so as to facilitate adjustment according to the height of the tobacco frame 3. Three tobacco frames 3 are placed on each layer of partitions 14; therefore, three box doors 11 are arranged on the front of the box body 1 in this embodiment; the three box doors 11 correspond to the three groups of limiting slides 15, so as to facilitate the forklift to fork the tobacco frame 3 in and out of the box body 1. The provision of multiple box doors 11 is convenient for reducing the impact on the internal environment of the box body 1 during unpacking and inspection.

[0036] In this embodiment, the maintenance device further includes a control panel 2, which is arranged on the side of the box body 1;

[0037] The air supply valve, exhaust valve, refrigeration mechanism 4, heating mechanism 6 and electric closing cover are all electrically connected to the control panel 2 through cables; a plurality of control switches are arranged on the control panel 2, and the plurality of control switches respectively control the operation of the air supply valve, exhaust valve, refrigeration mechanism 4, heating mechanism 6 and electric closing cover.

[0038] In this embodiment, a temperature and humidity sensor 16 and a gas sensor 17 are arranged on the inner wall of the box 1, and both the temperature and humidity sensor 16 and the gas sensor 17 are electrically connected to the control panel 2 through cables. In this embodiment, the gas sensor 17 includes an oxygen sensor, a carbon dioxide sensor and a nitrogen sensor.

[0039] The staff can adjust the operation of the air supply valve, the exhaust valve, the refrigeration mechanism 4, the heating mechanism 6 and the electric closing cover through the multiple control switches on the control panel 2 according to the values ​​of the temperature and humidity sensor 16 and the gas sensor 17, thereby adjusting the maintenance conditions in the box 1.

[0040] In some embodiments, a corresponding control program is also provided in the control panel 2, and real-time adjustments are made according to the values ​​of the temperature and humidity sensor 16 and the gas sensor 17 at different curing stages, thereby further improving the curing quality of the tobacco leaves.

[0041] In this embodiment, the refrigeration mechanism 4 also includes a compressor, a condenser, a refrigerant, etc.; the compressor provides power to drive the refrigerant to circulate in the condenser, the evaporator and the pipeline; and the refrigerant absorbs or releases heat through phase changes in different components, thereby achieving the purpose of refrigeration.

[0042] In this embodiment, the heating mechanism 6 includes a plurality of heating sheets, which are electrically connected to the control panel 2 through cables. The heating sheets generate heat after being energized, and the temperature in the box 1 is controlled by controlling the heating power and heating time of the heating sheets. The water tray 5 is arranged above the heating mechanism 6, so that the water in the water tray 5 evaporates quickly when the heating mechanism 6 is heated, thereby achieving the purpose of quickly adjusting the humidity in the box 1.

[0043] The specific use process of this embodiment includes:

[0044] In the four-stage tobacco leaf curing technology, the curing process is divided into four stages: natural aging stage, controlled atmosphere mildew prevention and insecticide stage, controlled atmosphere aging stage and controlled atmosphere preservation stage.

[0045] In the present embodiment, during the natural aging stage, the temperature in the cabinet 1 is controlled between 24 and 26 degrees Celsius, and the relative humidity is controlled between 55% and 65%. When the relative humidity in the cabinet 1 is low, a certain amount of pure water can be injected into the water tray 5 to increase the relative humidity in the cabinet 1; when the relative humidity is relatively high, the electric sealing cover at the vent 7 is opened to quickly discharge the air in the cabinet 1 to reduce the relative humidity in the cabinet 1; while controlling the humidity, the temperature in the cabinet 1 is controlled between 24 and 26 degrees Celsius through the cooperation of the refrigeration mechanism 4 and the heating mechanism 6.

[0046] In the atmosphere-controlled mildew-proofing and insect-killing stage of this embodiment, the oxygen concentration in the box body 1 is less than 3%, the relative humidity is between 45% and 55%, and the temperature is between 24 and 26 degrees Celsius; at this time, the electric closing cover is controlled to close the vent 7, and then the air inlet valve and the air outlet valve are opened, and dry nitrogen is injected from the air inlet valve. With the injection of nitrogen, oxygen and other gases are gradually discharged from the air outlet valve until the oxygen concentration in the box body 1 is less than 3%, and then the air inlet valve and the air outlet valve are closed; if the relative humidity is less than the corresponding relative humidity range at this time, a certain amount of pure water can be injected into the water tray 5 to increase the humidity in the box body 1 to the corresponding relative humidity range, and the temperature in the box body 1 is controlled to be between 24 and 26 degrees Celsius through the cooperation of the refrigeration mechanism 4 and the heating mechanism 6.

[0047] In this embodiment, during the atmosphere conditioning and purification stage, the oxygen concentration in the box 1 is between 13% and 21%, the relative humidity is between 55% and 65%, and the temperature is between 24 and 26 degrees Celsius. At this time, the electric closing cover can be controlled to open the vent 7 to allow a certain amount of air to enter until the oxygen concentration and relative humidity are within the corresponding range. The refrigeration mechanism 4 or the heating mechanism 6 is adjusted to adjust the temperature in the box 1 to between 24 and 26 degrees Celsius.

[0048] In this embodiment, during the atmosphere conditioning and quality preservation stage, the oxygen concentration in the box 1 is less than 8%, the relative humidity is between 45% and 55%, and the temperature is between 24 and 26 degrees Celsius. At this time, the electric closing cover is controlled to close the vent 7, and then the air inlet valve and the air outlet valve are opened, and dry nitrogen is injected from the air inlet valve. With the injection of nitrogen, oxygen and other gases are gradually discharged from the air outlet valve until the oxygen concentration in the box 1 is less than 8%, and then the air inlet valve and the air outlet valve are closed; if the relative humidity is less than the corresponding relative humidity range at this time, a certain amount of pure water can be injected into the water tray 5 to increase the humidity in the box 1 to the corresponding relative humidity range, and the temperature in the box 1 is controlled to be between 24 and 26 degrees Celsius through the cooperation of the refrigeration mechanism 4 and the heating mechanism 6.

[0049] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A four-stage tobacco leaf curing device, characterized in that: include: A box body, wherein a plurality of partitions are arranged from top to bottom inside the box body; An air conditioning unit, the air conditioning unit comprising an exhaust port and an air supply port; the air supply port is arranged on one side of the box body and close to the top of the box body, the air supply port is connected to the air source and is provided with an air supply valve; the exhaust port is arranged on the other side of the box body and close to the bottom of the box body, the exhaust port is provided with an exhaust valve; A temperature regulating unit, the temperature regulating unit comprising a cooling mechanism and a heating mechanism; the heating mechanism is arranged at the bottom of the box; the cooling mechanism comprises an evaporator, the evaporator is arranged at the top of the box; The humidity regulating unit comprises a water tray and a vent, wherein the water tray is arranged at the bottom of the box body and above the heating mechanism; the vent is arranged at the back of the box body, and an electric closing cover is arranged at the vent to open or close the vent.

2. A four-stage tobacco leaf curing device according to claim 1, characterized in that: It also includes a tobacco frame, which is used to hold tobacco and then placed on a partition. The bottom of the tobacco frame is provided with supporting feet to form a channel for air circulation between the bottom of the tobacco frame and the partition.

3. A four-stage tobacco leaf curing device according to claim 2, characterized in that: Each of the partitions is provided with a plurality of groups of limiting slide grooves along the length direction of the partition, and the plurality of groups of limiting slide grooves extend along the width direction of the partition, and each group of limiting slide grooves is used to cooperate with the bottom supporting feet of the tobacco frame to fix the tobacco frame.

4. A four-stage tobacco leaf curing device according to claim 2, characterized in that: It also includes a control panel, and the air supply valve, the exhaust valve, the refrigeration mechanism, the heating mechanism and the electric closing cover are all electrically connected to the control panel through cables.

5. A four-stage tobacco leaf curing device according to claim 4, characterized in that: A temperature and humidity sensor and a gas sensor are arranged on the inner wall of the box, and the temperature and humidity sensor and the gas sensor are electrically connected to the control panel through cables.

6. A four-stage tobacco leaf curing device according to claim 4, characterized in that: A plurality of box doors are arranged on the front side of the box body.

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