Cigar leaf curing barn and method

Abstract

The application discloses a cigar leaf airing house and an airing method. The airing house comprises a wall and a roof. A lifting airing device is arranged in the wall. A plurality of columns are arranged in the wall. The top of the column is connected with the roof through a reinforcing frame. The lifting airing device is arranged on both sides of the column and the top of the column. A crossbeam is arranged on the top of the column for fixing the top of the lifting airing device. The other end of the crossbeam is connected with the inner wall of the wall. The application aims to provide a cigar leaf airing house and an airing method, which can conveniently hang the leaves at a high place, facilitate the dispersion of moisture and heat, and make the leaves uniform in color, better in oil content and free from mildew during the airing process in a dry area, thereby improving the quality of the leaves.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco leaf airing, and in particular to a cigar tobacco leaf airing room and an airing method. Background Art

[0002] In the processing of flue-cured tobacco, drying the tobacco leaves is a key step. In order to facilitate tobacco drying, numbered tobacco rods are usually placed in a tobacco room for drying. However, the existing tobacco drying room has a simple structure, which is not convenient for hanging tobacco at a high place, and the moisture and heat dissipation effect in the tobacco drying room is not good, which affects the drying effect of the tobacco leaves. Drying tobacco leaves in dry areas usually causes the tobacco leaves to dehydrate quickly, turn brown in a short time, and the browning reaction is incomplete and insufficient, resulting in yellow flakes and spots on the tobacco leaves, more mildew, and insufficient tobacco aroma. For this reason, the present invention provides a cigar tobacco drying room and a drying method, so as to facilitate hanging tobacco at a high place and facilitate the dissipation of moisture and heat. Through the drying method, the tobacco leaves have uniform color, good oil content, and no mildew during the drying process in dry areas, thereby improving the quality of the tobacco leaves. Summary of the Invention

[0003] The object of the present invention is to provide a cigar tobacco leaf drying room and drying method, so as to facilitate the hanging of tobacco at a high place and the dissipation of moisture and heat. Moreover, through the drying method, the tobacco leaves are uniform in color, have good oil content, and are free of mildew during the drying process in a dry area, thereby improving the quality of the tobacco leaves.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A cigar tobacco drying room includes a tobacco drying room wall and a tobacco drying room roof. A liftable tobacco drying device is provided in the tobacco drying room wall. A plurality of columns are provided in the tobacco drying room wall. The tops of the columns are connected to the tobacco drying room roof via reinforcing frames. The liftable tobacco drying device is located on both sides of the columns. A crossbeam for fixing the top of the liftable tobacco drying device is provided on the top of the columns. The other end of the crossbeam is connected to the inner wall of the tobacco drying room wall.

[0006] A plurality of heating modules are arranged on the ground inside the wall of the tobacco airing room. The heating modules are located below the liftable tobacco airing device. A water ditch is provided on the ground. The water ditch is close to the inner wall of the tobacco airing room. An ultrasonic humidifier is arranged near the column. A delivery pipe is vertically arranged on the ultrasonic humidifier. A plurality of discharge holes are arranged at intervals on the delivery pipe. The discharge holes face the liftable tobacco airing rack. A bottom fan is arranged below the inner wall of the tobacco airing room wall, and an upper fan is arranged above the column. Shutters are also arranged on the wall of the tobacco airing room.

[0007] Furthermore, a temperature and humidity detector is provided on the inner side of the wall of the tobacco drying room.

[0008] Furthermore, a photovoltaic panel and a top exhaust fan are provided on the roof of the tobacco drying room.

[0009] Furthermore, the liftable smoke drying device includes a smoke rack column, a fixed smoke drying rack and a lift smoke drying rack. The number of the fixed smoke drying racks is 2-3 and they are fixed under the smoke rack column. Rollers are provided at both ends of the lift smoke drying rack, and the rollers are slidably provided in the smoke rack column. The number of the lift smoke drying racks is 2 and they are connected by a connecting rope. A rotating wheel is rotatably provided on the crossbeam, and the rotating wheel is connected to the upper lift smoke drying rack through a connecting rope and a driven gear is fixed on the rotating wheel.

[0010] Furthermore, a rotating shaft is provided on the column, and two driving gears and a bevel tooth are provided on the rotating shaft, and the driving gear is engaged with the driven gear. A motor is also provided on the column, and the output end of the motor is also provided with a bevel tooth, and the two bevel teeth are engaged with each other. A limit switch for stopping the operation of the motor is provided on the upper part of the cigarette rack column.

[0011] In addition, the present invention also provides a cigar tobacco leaf drying method, wherein wide and thick tobacco leaves are braided onto tobacco rods and placed on a fixed tobacco drying rack and a lifting tobacco drying rack in sequence, and the lifting tobacco drying rack is raised to a certain height. The cigar tobacco leaf drying method is divided into five stages: withering stage, yellowing stage, browning stage, leaf drying stage, and tendon drying stage.

[0012] Withering period: Open the blinds, bottom fans, upper fans and top exhaust fans to ventilate, accelerate air circulation and promote tobacco leaf withering. Start the ultrasonic humidifier to keep the humidity at 85%-90% and the temperature at 25-28° until 80% of the tobacco leaves collapse and wither. This process lasts for 3-5 days.

[0013] Yellowing period: Turn on the heating module to raise the temperature in the drying room to 28-30°C, adjust the ultrasonic humidifier to keep the humidity in the drying room between 80%-85%, and ventilate in the morning and evening. This period is controlled within 5-7 days to allow the tobacco leaves to slowly turn yellow;

[0014] Browning period: Adjust the heating module and ultrasonic humidifier to keep the temperature at 27-32℃ and the humidity at 75%-80%, until the tobacco leaves change from yellow to brown and the main veins become soft. Increase the frequency of ventilation during this period, and this period lasts for 10-15 days.

[0015] Leaf drying period: After the tobacco leaves have fully undergone browning reaction, they enter the leaf drying period. During this period, the browning state of the tobacco leaves is observed. When the browning of the tobacco leaves in the entire drying room reaches about 95%, the heating module and ultrasonic humidifier are adjusted to slowly increase the temperature and slowly decrease the humidity. The temperature is gradually increased within the range of 30-35°C, and the humidity is gradually decreased within the range of 75-50%. This period lasts for 5-10 days until the leaves are completely brown and the main veins turn from yellow to brown.

[0016] Drying period: When the tobacco leaves are dry to the point where they are soft, slightly sticky and not brittle, they can enter the drying period. Turn off the ultrasonic humidifier to stop humidification, adjust the heating module to slowly heat up, the temperature should be between 35 and 40 degrees Celsius, and the humidity should be between 50 and 35%. Keep ventilation in the morning and evening. While preventing mildew, let the leaves dry completely, the main tendons are all dry, and the leaves are all brown.

[0017] Furthermore, during the tobacco weaving process, the number of tobacco leaves is 50 pieces per pole, the pole length is 1.5m, the pole distance is 30CM, and the process time from field harvesting to weaving and packing into the room is within 8 hours and the fresh tobacco leaves are not left overnight.

[0018] Furthermore, during the leaf drying period, the daily fluctuation of temperature is within 1°C, and the daily fluctuation of humidity is within 5%.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention is provided with a bottom fan on the inner wall of the tobacco airing room, a water ditch, a heating module, an ultrasonic humidifier on the ground and an upper fan above the column, so that the air flow blows through the water ditch, the heating module and the wet mist generated by the humidifier, thereby facilitating the dispersion of hot air flow and moisture in the factory building. Its dispersion effect has a bottom-up circulation characteristic, thereby improving the dispersion effect of hot air flow and moisture. A liftable tobacco airing device is also provided in the tobacco airing room. The device can drive the liftable tobacco airing devices on both sides to be lifted by the same motor, so as to facilitate the tobacco hanging device at a high place and save costs. The drying method is divided into five stages. In each stage, the temperature and humidity in the drying room are controlled by a heating module and an ultrasonic humidifier, and ventilation is carried out through blinds and bottom fans. In the five stages of drying, the temperature gradually rises and the humidity gradually decreases, so that slow dehydration can be carried out in each period, which greatly reduces the drying loss rate, yellowing and mottled phenomena. The ventilation effect is better achieved through the ventilation operations of the blinds, bottom fans, upper fans and top exhaust fans in the drying room, which prevents large amounts of local mildew. In addition, the combination of moisture and hot air flow can make the heat and moisture have a better dissipation process, so that the color and oil content of the tobacco leaves after drying are more consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a structural diagram of a liftable smoke drying device.

[0023] In the figure, 1-tobacco airing room wall, 2-louver, 3-tobacco airing room roof, 4-photovoltaic panel, 5-top exhaust fan, 6-reinforcement frame, 7-column, 8-ultrasonic humidifier, 9-conveying pipe, 10-discharge hole, 11-heating module, 12-water ditch, 13-bottom fan, 14-tobacco rack column, 15-fixed tobacco airing rack, 16-lifting tobacco airing rack, 17-roller, 18-connecting rope, 19-crossbeam, 20-rotor, 21-driven gear, 22-rotating shaft, 23-driving gear, 24-motor, 25-conical gear, 26-upper fan, 27-temperature and humidity detector, 28-limit switch. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] Example 1:

[0026] refer to Figure 1-2 As shown, the present invention provides a cigar tobacco airing room, comprising a tobacco airing room wall 1 and a tobacco airing room roof 3. A liftable tobacco airing device is provided in the tobacco airing room wall 1. A plurality of columns 7 are provided in the tobacco airing room wall 1. The liftable tobacco airing devices are provided in a plurality and are located on both sides of the columns 7. The tops of the columns 7 are connected to the tobacco airing room roof 3 via reinforcing frames 6, thereby improving the strength of the tobacco airing room roof 3. The liftable tobacco airing devices are located on both sides of the columns 7. A crossbeam 19 for fixing the top of the liftable tobacco airing device is provided on the top of the columns 7. The other end of the crossbeam 19 is connected to the inner wall of the tobacco airing room wall 1, thereby stabilizing the upper part of the liftable tobacco airing device.

[0027] A plurality of heating modules 11 are arranged on the ground inside the wall 1 of the tobacco airing room. The preferred heating module 11 is a ceramic thick film CTF heating module. The heating module 11 is located below the liftable tobacco airing device. A heating module 11 is arranged below each liftable tobacco airing device. A water ditch 12 is opened on the ground. Water flows into the water ditch 12 so that the water provides moisture during the flow. The water ditch 12 is close to the inner wall of the tobacco airing room wall 1. An ultrasonic humidifier 8 is arranged near the column 7. Preferably, the ultrasonic humidifier 8 is provided with two exhaust pipe openings, and a delivery pipe 9 is vertically arranged on the ultrasonic humidifier 8. A plurality of discharge holes 10 are arranged at intervals, and the discharge holes 10 face the lifting tobacco drying rack to rehumidify the tobacco leaves. A bottom fan 13 is arranged below the inner wall of the tobacco drying room wall 1, and an upper fan 26 is arranged above the column 7. Venetian blinds 2 are also arranged on the tobacco drying room wall 1, and the venetian blinds 2 are arranged in two rows. Air flow is formed in the drying room through the bottom fan 13 and the lower row of venetian blinds 2. The air flow passes through the ditch 12, the heating module 11, the moisture discharged from the discharge hole 10 and the upper fan 26, so that the hot air flow mixed with moisture can circulate in the drying room, thereby improving the air fluidity and the divergence effect of the moist hot air flow.

[0028] Example 2:

[0029] On the basis of the above embodiment, another embodiment of the present invention is that, in order to detect the temperature and humidity conditions in the air-drying room, a temperature and humidity detector 27 is provided on the inner side of the wall 1 of the air-drying room, and a photovoltaic panel 4 and a top exhaust fan 5 are provided on the top of the roof 3 of the air-drying room. The photovoltaic panel 4 can provide power for electrical devices such as the fan in the air-drying room.

[0030] Example 3:

[0031] On the basis of the above-mentioned embodiments, another embodiment of the present application is that the liftable tobacco airing device comprises a tobacco rack column 14, fixed airing racks 15 and liftable airing racks 16, the number of the fixed airing racks 15 is 2-3 and the fixed airing racks 15 are fixed below the tobacco rack column 14, thereby meeting the requirement of people to hang tobacco on the lower layer, the liftable airing racks 16 are provided with rollers 17 at both ends, the rollers 17 are slidingly arranged in the tobacco rack column 14, thereby facilitating the stable lifting of the liftable airing racks 16, the number of the liftable airing racks 16 is 2 and the liftable airing racks 16 are connected through connecting ropes 18, the upper end of the connecting ropes 18 is connected with the upper liftable airing rack 16 and the lower end of the connecting ropes 18 is connected with the lower liftable airing rack 16, a rotating wheel 20 is rotatably arranged on the cross beam 19, the rotating wheel 20 is connected with the upper liftable airing rack 16 through the connecting ropes 18 and a driven gear 21 is fixedly arranged on the rotating wheel 20. In order to drive the rotating wheels 20 on both sides and thereby lift the liftable airing racks 16, a rotating shaft 22 is arranged on the column 7, two driving gears 23 and a conical gear 25 are arranged on the rotating shaft 22, the driving gears 23 are engaged with the driven gear 21, a motor 24 is further arranged on the column 7, the motor 24 is connected through a forward and reverse rotation circuit, a conical gear 25 is also arranged on the output end of the motor 24, the two conical gears 25 are engaged, and a limit switch 28 for stopping the operation of the motor 24 is arranged on the upper end of the tobacco rack column 14, when the upper liftable airing rack 16 touches the limit switch 28, the lifting process of the motor 24 is stopped.

[0032] Embodiment 4:

[0033] On the basis of the above-mentioned embodiments, the present application further provides a method for airing cigar tobacco leaves, the wide and thick tobacco leaves are braided on tobacco rods and sequentially placed on the fixed airing racks 15 and the liftable airing racks 16, and the liftable airing racks 16 are lifted to a certain height, the number of braided tobacco leaves is 50 per rod during the braiding process, the length of the rod is 1.5 m, and the rod distance is 30 cm, the density of the braided tobacco leaves is dynamically adjusted during the braiding process, the time from field harvesting to braiding and loading into the house is within 8 hours, and the fresh tobacco leaves are not left overnight, the airing method of the cigar tobacco leaves comprises five stages of wilting period, yellowing period, brown period, dry leaf period and dry muscle period.

[0034] The louver 2, the bottom fan 13, the upper fan 26 and the top exhaust fan 5 are opened for ventilation operation, air circulation is accelerated, tobacco leaf wilting is promoted, the ultrasonic humidifier 8 is started to make the humidity 85%-90% and the temperature 25-28°, until 80% of the tobacco leaves are collapsed and wilted, and the process lasts for 3-5 days.

[0035] Yellowing period: the heating module 11 is opened to make the temperature in the airing room 28-30°, the ultrasonic humidifier 8 is adjusted to make the humidity in the airing room 80%-85%, and ventilation operation is performed in the morning and evening, the period is controlled for 5-7 days to make the tobacco leaves slowly yellow.

[0036] Browning period: Adjust the heating module 11 and ultrasonic humidifier 8 to keep the temperature at 27-32°C (28-30°C for wrappers) and the humidity at 75%-80%. During the drying process, pay attention to controlling the temperature and humidity so that there are no large fluctuations. The leaves will turn from yellow to brown and the main veins will become soft. During this period, pay attention to the occurrence of mold and mildew. Increase the frequency of ventilation during this period. The frequency can be adjusted according to the condition of the leaves in the drying room. This period lasts for 10-15 days. It is recommended to extend this period as much as possible within this time range to allow the leaves to slowly turn brown.

[0037] Leaf drying stage: After the tobacco leaves have fully undergone browning reaction, they enter the leaf drying stage. During this period, the browning state of the tobacco leaves is observed. When the browning of the tobacco leaves in the entire drying room is about 95%, the heating module 11 and the ultrasonic humidifier 8 are adjusted to slowly increase the temperature and slowly decrease the humidity. The temperature is gradually increased within the range of 30-35°C (30-33°C for the wrapper) and the humidity is gradually decreased within the range of 75-50%. The daily fluctuation of temperature is within 1°C and the daily fluctuation of humidity is within 5%. This period lasts for 5-10 days until the leaf color completely turns to brown and the main veins turn from yellow to brown. This process is the process of achieving color fixation and leaf drying.

[0038] Drying period: When the tobacco leaves are dry to the point where they are soft, slightly sticky and not brittle, they can enter the drying period. Turn off the ultrasonic humidifier 8 to stop humidification, adjust the heating module 11 to slowly increase the temperature to 35-40°C (33-36°C for the wrapper) and 50-35% humidity. Keep the leaves ventilated in the morning and evening. While preventing mildew, allow the leaves to dry completely, the main ribs to dry, and the leaves to turn brown.

[0039] Although the present invention has been described herein with reference to a number of illustrative embodiments thereof, it will be understood that numerous other modifications and implementations may be devised by those skilled in the art that fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications may be made to the components or arrangements of the subject combination arrangement within the scope of the present disclosure, the drawings, and the claims. In addition to variations and modifications to the components or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A cigar tobacco drying room, comprising a tobacco drying room wall (1) and a tobacco drying room roof (3), wherein a liftable tobacco drying device is provided in the tobacco drying room wall (1), characterized in that: A plurality of columns (7) are provided in the wall (1) of the tobacco airing room, and the tops of the columns (7) are connected to the roof (3) of the tobacco airing room via a reinforcing frame (6). A liftable tobacco airing device is located on both sides of the columns (7), and a crossbeam (19) for fixing the top of the liftable tobacco airing device is provided on the top of the columns (7). The other end of the crossbeam (19) is connected to the inner wall of the tobacco airing room wall (1). A plurality of heating modules (11) are provided on the ground inside the tobacco airing room wall (1). The heating modules (11) are located below the liftable tobacco airing device and are opened on the ground. A water ditch (12) is provided, the water ditch (12) is close to the inner wall of the tobacco airing room wall (1), an ultrasonic humidifier (8) is provided near the column (7), a delivery pipe (9) is vertically provided on the ultrasonic humidifier (8), a plurality of discharge holes (10) are provided at intervals on the delivery pipe (9), and the discharge holes (10) face the lifting tobacco airing rack, a bottom fan (13) is provided below the inner wall of the tobacco airing room wall (1), an upper fan (26) is provided above the column (7), and a shutter (2) is also provided on the tobacco airing room wall (1); A temperature and humidity detector (27) is provided on the inner side of the wall (1) of the tobacco airing room; A photovoltaic panel (4) and a top exhaust fan (5) are provided on the top of the tobacco drying room roof (3); The liftable smoke drying device comprises a smoke rack column (14), a fixed smoke drying rack (15) and a lift smoke drying rack (16), wherein the number of the fixed smoke drying racks (15) is 2-3 and they are fixed below the smoke rack column (14), rollers (17) are provided at both ends of the lift smoke drying rack (16), the rollers (17) are slidably provided in the smoke rack column (14), the number of the lift smoke drying racks (16) is 2 and they are connected by a connecting rope (18), a rotating wheel (20) is rotatably provided on the crossbeam (19), the rotating wheel (20) is connected to the upper lift smoke drying rack (16) by the connecting rope (18), and a driven gear (21) is fixedly provided on the rotating wheel (20); A rotating shaft (22) is provided on the column (7), and two driving gears (23) and a conical tooth (25) are provided on the rotating shaft (22), and the driving gear (23) is meshed with the driven gear (21). A motor (24) is also provided on the column (7), and the output end of the motor (24) is also provided with a conical tooth (25), and the two conical teeth (25) are meshed. A limit switch (28) for stopping the operation of the motor (24) is provided on the upper part of the cigarette rack column (14); A cigar tobacco leaf drying method using a cigar tobacco leaf drying room, wherein wide and thick tobacco leaves are braided onto tobacco rods and placed on a fixed tobacco drying rack (15) and a lifting tobacco drying rack (16) in sequence, and the lifting tobacco drying rack (16) is raised to a certain height, and the cigar tobacco leaf drying method is divided into five stages: withering stage, yellowing stage, browning stage, leaf drying stage and tendon drying stage; Withering period: Open the blinds (2), bottom fan (13), upper fan (26) and top exhaust fan (5) to perform ventilation operation to accelerate air circulation and promote tobacco leaf withering. Start the ultrasonic humidifier (8) to make the humidity at 85%-90% and the temperature at 25-28° until 80% of the tobacco leaves collapse and wither. This process lasts for 3-5 days. Yellowing period: Turn on the heating module (11) to raise the temperature in the drying room to 28-30°C, adjust the ultrasonic humidifier (8) to keep the humidity in the drying room between 80% and 85%, and ventilate the room in the morning and evening. This period is controlled within 5-7 days to allow the tobacco leaves to slowly turn yellow; Browning period: adjust the heating module (11) and the ultrasonic humidifier (8) to keep the temperature at 27-32°C and the humidity at 75%-80%, until the tobacco leaves change from yellow to brown and the main veins become soft. Increase the frequency of ventilation during this period, and this period lasts for 10-15 days. Drying period: After the tobacco leaves have fully undergone browning reaction, they enter the drying period. During this period, the browning state of the tobacco leaves is observed. When the browning of the tobacco leaves in the entire drying room reaches about 95%, the heating module (11) and the ultrasonic humidifier (8) are adjusted to slowly increase the temperature and slowly decrease the humidity, so that the temperature increases within the range of 30-35°C day by day, and the humidity decreases within the range of 75-50% day by day. This period lasts for 5-10 days until the leaf color completely turns to brown and the main veins turn from yellow to brown. Drying period: When the tobacco leaves are dry to the point where they are soft, slightly sticky and not brittle, they enter the drying period. The ultrasonic humidifier (8) is turned off to stop humidification. The heating module (11) is adjusted to slowly increase the temperature to 35-40°C and the humidity to 50-35%. Ventilation is maintained in the morning and evening. While preventing mildew, the leaves are allowed to dry completely, the main veins are all dry, and the leaves are brown.

2. The method for drying cigar tobacco leaves according to claim 1, characterized in that: During the tobacco weaving process, the number of tobacco leaves is 50 pieces per pole, the pole length is 1.5m, and the pole distance is 30CM. The process time from field harvesting to weaving and packing into the room is within 8 hours and the fresh tobacco leaves are not left overnight.

3. The method for airing cigar tobacco leaves according to claim 1, characterized in that: During the leaf drying period, the daily temperature fluctuation is within 1°C, and the daily humidity fluctuation is within 5%.

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