CN111480875A - Tobacco drying rack with flow guide pipe and flue-cured tobacco flow guide pipe baking method - Google Patents
Tobacco drying rack with flow guide pipe and flue-cured tobacco flow guide pipe baking method Download PDFInfo
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- CN111480875A CN111480875A CN202010349794.8A CN202010349794A CN111480875A CN 111480875 A CN111480875 A CN 111480875A CN 202010349794 A CN202010349794 A CN 202010349794A CN 111480875 A CN111480875 A CN 111480875A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
Abstract
The invention discloses a tobacco drying rack with a flow guide pipe and a flue-cured tobacco flow guide pipe baking method, belongs to the field of flue-cured tobacco equipment and flue-cured tobacco technology, and solves the problem that a flue-cured tobacco flow guide pipe baking method which shortens the time for baking a large box, improves the baking efficiency, saves the cost and has strong reproducibility is absent in the prior art. The tobacco straw hanging frame mainly comprises a frame body, wherein a cross beam, an elevated frame and a low frame are arranged on the frame body, a groove is formed in the cross beam, tobacco rods are placed in the groove, hooks I are arranged on the elevated frame and the low frame, a flow guide pipe is arranged on the hooks I, hooks II are arranged on the flow guide pipe, and the flow guide pipe is hung on the hooks I through the hooks II; round holes are formed in the flow guide pipe; the flue-cured tobacco honeycomb duct baking method comprises the steps of tobacco leaf harvesting and finishing, tobacco filling and tobacco leaf baking, wherein the tobacco leaf yellowing stage, the tobacco leaf color fixing stage, the tobacco leaf tendon drying stage and the tobacco leaf moisture regaining stage are controlled by controlling fire and controlling wind during the tobacco leaf baking. The invention is mainly used for improving the quality of the flue-cured tobacco and reducing the cost of the flue-cured tobacco.
Description
Technical Field
The invention relates to tobacco curing equipment and a tobacco curing process, in particular to a tobacco drying rack with a flow guide pipe and a tobacco flow guide pipe curing method.
Background
The large-box tobacco curing refers to the process of placing tobacco leaves in a box-type tobacco basket for curing by using special tobacco loading equipment to finish yellowing, color fixing and tendon drying of the tobacco leaves. The problem that the tobacco leaves are insufficiently transformed in chemical components due to small tobacco loading amount, overlarge wind speed and insufficient tobacco leaf internal chemical composition can be effectively solved through box-type baking, the tobacco leaves after baking are loosened in structure, oil content is increased, color and luster are enhanced, aroma quality, aroma amount and concentration are well improved, but the tobacco leaf loading density is large, the temperature difference between layers of the tobacco box is large, tobacco leaves in the box are heated and heat dissipation is not uniform, tobacco leaves at different positions in the box are not uniform in yellowing and water loss, particularly, the temperature of the middle position of a tobacco basket is low, dry matter loss in the tobacco leaves is large, the tobacco leaves after baking are thin or the tobacco leaves are damaged in baking, dry matter loss in the tobacco leaves is large, and the quality.
The existing hanging rod flue-cured tobacco is small in yield, high in labor cost and low in efficiency, the problem of yield is well solved by baking in a big box, and although quality is improved, the problem of high cost is also brought. Uneven temperature distribution in the smoke box is a main symptom influencing the baking of the big box, and the cost is greatly reduced by effectively solving the problem.
At present, a method for baking the flue-cured tobacco by using the guide pipe, which has the advantages of simple structure, convenient use, simple and convenient operation and strong reproducibility, is lacking, improves the baking efficiency when the baking process of the flue-cured tobacco by using the guide pipe is shortened and the cost is saved, and the tobacco baking frame with the guide pipe improves the baking efficiency when the baking process of the flue-cured tobacco by using the flue-cured tobacco is shortened and the baking cost is saved.
Disclosure of Invention
The invention aims to provide a tobacco drying rack with a flow guide pipe and a flue-cured tobacco flow guide pipe baking method, and aims to solve the problems that in the prior art, a flue-cured tobacco flow guide pipe baking method which adopts a flow guide pipe to assist a baking process, improves the baking efficiency when a large box is baked, saves the cost and improves the baking efficiency when the large box is baked and can shorten the time, save the cost, and is easy and convenient to operate and strong in reproducibility is lacking.
The invention is realized by the following technical scheme:
a tobacco drying rack with a flow guide pipe comprises a rack body, wherein a cross beam, an elevated frame and a low frame are arranged on the rack body, a groove is formed in the cross beam, tobacco rods are placed on the groove, hooks I are arranged on the elevated frame and the low frame, the flow guide pipe is arranged on the hooks I, a hook II is arranged on the flow guide pipe, and the flow guide pipe is hung on the hook I through the hook II; and the guide pipe is provided with a round hole.
Furthermore, a fixed seat is arranged at one end of the tobacco rod, an installation cap is arranged at the other end of the tobacco rod, and the tobacco rod is hung in the groove on the cross beam through the fixed seat and the installation cap; the front end of the tobacco rod is provided with a tip.
Furthermore, the round holes on the flow guide pipe are spirally arranged.
Furthermore, air inlets are arranged on the high frame and the low frame.
Furthermore, a limiting rack is arranged above the groove 6 and below the fixing seat 5 and the mounting cap 11.
A flue-cured tobacco honeycomb duct baking method comprises the following steps: the method comprises the steps of harvesting, sorting, loading and baking the tobacco leaves, wherein the tobacco leaf yellowing stage, the tobacco leaf color fixing stage, the tobacco leaf tendon drying stage and the tobacco leaf moisture regaining stage are controlled by controlling fire and wind during baking the tobacco leaves, and the varieties, the nutrition levels, the positions and the maturity of the fresh tobacco leaves in the same baking room are consistent during sorting and loading the tobacco leaves.
Further, the tobacco leaves in the tobacco leaf harvesting, sorting and loading are harvested 7-14 days after the lower tobacco leaves are selected for topping, the color of the leaves is yellow green, the yellow green of the leaf surfaces accounts for 50-60%, and the main veins are whitened over 1/3; 21-35 days after the middle leaves are topped, the leaves are yellow, more green and less, the yellow green of the leaves accounts for 70-80%, the main vein is whitened, and the leaves are harvested above 2/3%; harvesting upper leaves 56-63 days after topping, wherein the leaf color is mainly yellow, the leaf surface is yellow-green and accounts for 90-100%, and the main veins are basically white; harvesting 3-4 leaves of each plant every time, harvesting every 6-7 days, wherein the harvesting maturity of tobacco leaves is improved along with the position, the lower part is harvested completely, the middle part is harvested again after 5-7 days, the middle part is harvested completely, the upper part is harvested again after 7-10 days, the upper part 6 leaves, the left leaf and the right leaf, are harvested once after being intensively and fully matured, and are harvested 4-5 times; when the tobacco is filled, the lower leaves are not less than 4500 kg/furnace, the middle leaves are not less than 5000 kg/furnace, the upper leaves are not less than 5500 kg/furnace, 10 tobacco filling boxes are arranged in each curing barn, the lower tobacco single box is 450-550 kg, the middle tobacco is 500-550kg, and the upper tobacco is 550-600 kg; the tobacco drying rack with the flow guide pipe is used for achieving uniform ventilation during baking and completely blowing tobacco leaves.
Further, in the tobacco leaf yellowing stage, the dry bulb temperature is increased to 38 ℃ at the speed of 1 ℃/h, the wet bulb temperature is kept at 37-38 ℃, the temperature is stabilized, after the tobacco leaves are yellowed by about 5-6 days, the dry bulb temperature is increased to 40 ℃ at the speed of 0.5-1 ℃/h, the wet bulb temperature is controlled at 37-38 ℃, the temperature is stabilized, the tobacco leaves are sweated and softened, when the tobacco leaves are yellowed by 8 days, the dry bulb temperature is increased to 42 ℃ at the speed of 0.5-1 ℃/h, the wet bulb temperature is kept at 36.5-37.5 ℃, the temperature is stabilized for a prolonged time, the tobacco leaves are further yellowed and dehydrated, and then the tobacco leaves are shifted to the color fixing stage; in this stage, the yellowing degree of the lower tobacco leaves reaches 8-9 yellowing, the yellowing degree of the middle and upper tobacco leaves reaches 9-10 yellowing, the yellow leaves of the tobacco leaves are green, withered and have a soft and continuous main vein.
Further, in the tobacco leaf color fixing stage, the dry bulb temperature is increased to 45 ℃ at the speed of 0.5 ℃/h, the wet bulb temperature is kept at 37-38 ℃, and the temperature is stabilized, so that the tip of the tobacco leaf is hooked and curled; then the dry-bulb temperature is increased to 47-48 ℃ at the speed of 0.5-1 ℃/h, the wet-bulb temperature is controlled to 37-38 ℃, and the temperature is stabilized, so that the tobacco leaves reach the yellow-rib yellow-sheet small winding drum; continuously raising the dry bulb temperature to 50 ℃ at the speed of 1 ℃/h, controlling the wet bulb temperature to be 37.5-38.5 ℃, and stabilizing the temperature to enable the tobacco leaves to approach the large reel; then the dry bulb temperature is raised to 54 ℃ at the speed of 1 ℃/h, the wet bulb temperature is controlled to be 38.5-39.5 ℃, the temperature is stabilized, the tobacco leaves are wound into large rolls, and then the tobacco leaves are transferred to a dry stem stage; at this stage, the yellow tobacco leaf is yellow, and the leaves are completely dry.
Further, in the tobacco leaf stem drying stage, the dry bulb temperature is increased to 65-68 ℃ at the speed of 1 ℃/h, the tobacco clamping tobacco is increased by 1-2 ℃ and kept stable, and the wet bulb temperature is controlled at 40-43 ℃ until the main vein of the whole-house tobacco leaf is completely dried; if the main vein of the tobacco leaves is dried slowly in the middle and later periods of the dry tobacco stems, manual adjustment is carried out, the temperature of the dry balls is controlled to be 65-68 ℃, the temperature of the wet balls is controlled to be 40-43 ℃, the air door is opened and closed intermittently, the temperature of the wet balls in the curing barn is repeatedly fluctuated within the range of 40-43 ℃, the temperature of the wet balls is slightly high within a short time, namely reaches 45 ℃, the temperature of the dry balls exceeds 68 ℃ within a short time, so that the diffusion of moisture of the tobacco stems is accelerated, and the drying of the tobacco stems is promoted.
Further, in the tobacco leaf moisture regaining stage, when the relative humidity of the outside air is high, after the tobacco leaves in the whole room are confirmed to be completely dry, heat supply is stopped, the power supply of the fan is turned off, and when the temperature of the curing barn is reduced to 40-45 ℃, the tobacco leaf loading door, the cold air inlet and the moisture discharging port are opened, so that the tobacco leaves can absorb moisture naturally, and the moisture content is proper; when the relative humidity of the outside air is low and the temperature of the flue-curing barn is reduced to 40-45 ℃, water is uniformly splashed to the ground of the tobacco containing chamber and the heating chamber, then the door and the window of the flue-curing barn and the air inlet are closed, the fan is started for ventilation, the humidity of the circulating air is improved by the generated steam to remoisten the tobacco leaves, if the tobacco leaves are remoistened, the tobacco leaves are reheated, the temperature is controlled to 40-45 ℃, and the vaporization of the moisture is promoted, so that the moisture content of the tobacco leaves is proper.
Compared with the prior art, the invention has the beneficial effects that:
1. the tobacco drying rack with the flow guide pipe is simple in structure and convenient to use, solves the problem that tobacco leaves are heated unevenly when a big box is baked, so that the tobacco leaves at different positions in the box body are yellowed and lose water inconsistently, adopts the flow guide pipe to assist in a baking process, shortens the time for baking the big box, improves the baking efficiency, saves the cost, and improves the quality of the baked tobacco leaves.
2. The flue-cured tobacco honeycomb duct baking method can shorten the baking time of a large box, improve the baking efficiency, reduce the energy consumption, save the cost, and has simple and convenient operation and strong reproducibility.
3. On flue-cured tobacco smoke panel test quality, the whole quality is improved.
Drawings
FIG. 1 is a schematic front view of a tobacco drying rack with flow conduits;
FIG. 2 is a schematic structural view of a side view of a tobacco drying rack with a flow conduit;
fig. 3 is a schematic structural view of a mounting cap of a tobacco drying rack with a draft tube.
In the figure: 1. a cross beam; 2. raising the frame; 3. a hook I; 4. a flow guide pipe; 5. a fixed seat; 6. a groove; 7. a hook II is hooked; 8. an air inlet; 9. a tobacco rod; 10. a circular hole; 11. (ii) a 12. Lowering the frame; 13. a pointed tip.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Embodiment 1, a tobacco drying rack with a flow guide pipe, which comprises a rack body, wherein a beam 1, an elevated frame 2 and a lower frame 12 are arranged on the rack body, a groove 6 is formed in the beam 1, a tobacco rod 9 is placed on the groove 6, hooks I3 are arranged on the elevated frame 2 and the lower frame 12, the flow guide pipe 4 is arranged on the hook I3, a hook II 7 is arranged on the flow guide pipe 4, and the flow guide pipe 4 is hung on the hook I3 through the hook II 7; a circular hole 10 is formed in the draft tube 4; one end of the tobacco rod 9 is provided with a fixed seat 5, the other end of the tobacco rod 9 is provided with a mounting cap 11, and the tobacco rod 9 is suspended in the groove 6 on the cross beam 1 through the fixed seat 5 and the mounting cap 11; the front end of the tobacco rod 9 is provided with a sharp head 13; the round holes 10 on the draft tube 4 are spirally arranged; the upper frame 2 and the lower frame 12 are provided with air inlets 8; limiting racks are arranged above the grooves 6 and below the fixing seat 5 and the mounting cap 11, so that the tobacco rods 9 are prevented from moving.
The time of the tobacco leaf yellowing stage below the dry bulb temperature of 35 ℃ is not too long; and (3) properly removing moisture in the middle and later stages according to the temperature of a wet bulb and the change condition of tobacco leaves so as to prevent the tobacco leaves from becoming hard and yellow and rotten. The burning of the tobacco leaves in the color fixing stage is flexible, the temperature rise and the temperature reduction are prevented from being too fast, the humidity is stable and accurate, and the temperature of a wet bulb is prevented from exceeding 40 ℃ or being suddenly high or suddenly low. The tobacco leaf stem drying stage strictly prohibits large-scale temperature reduction so as to prevent the tobacco leaves from stem spreading; the highest temperature and humidity of the dried tobacco stems are controlled, and the tobacco leaves are prevented from being baked red.
The curing barn is checked before curing the tobacco. And (3) humidifying the curing barn at the initial curing stage, opening a door of a tobacco containing room or an access door of a hot air room when the moisture content of the collected fresh tobacco leaves is less or the humidity of the curing barn does not meet the requirement after the initial heating at the yellowing stage, splashing a proper amount of clear water to the ground in the curing barn, and properly prolonging the heating and ventilating time.
When the water content of the collected fresh tobacco leaves is more, the initial heating temperature is slightly increased, the heating and ventilation time is properly prolonged, and the intermittent dehumidification is carried out for a plurality of times, so that the leaf surfaces are turned into normal baking after a large amount of attached water is evaporated.
And (3) power failure and wind cut-off treatment, wherein if power failure or motor damage and wind cut-off accidents occur when the baking room is above a medium fire during baking, a standby power supply or a motor must be replaced in time. Effective fire pressing and removing measures are adopted, including closing a fire door, closing a chimney flashboard, opening an access door and the like; if the power failure and air stop faults can not be eliminated within a short time, the fire should be pressed and stopped, and an access door of a heating chamber of the curing barn and a door of a tobacco containing chamber are opened, so that tobacco leaves are not scalded and the lubricating state of a fan is not damaged during the air stop period.
And (4) using the tobacco drying rack with the flow guide pipe to bake the tobacco leaves. The quality of the whole-house fresh tobacco is as consistent as possible, and the quality of the same-layer fresh tobacco is basically consistent when the quality of the whole-house fresh tobacco cannot be consistent. The fresh tobacco leaves and the over-cured leaves which turn yellow quickly are arranged on the layer with the highest temperature, namely the top layer of the airflow descending type curing barn and the bottom layer of the airflow ascending type curing barn, and the fresh tobacco leaves with good quality are arranged on the other two layers.
Ignition and fire burning, wherein the fire power during fire burning is flexibly mastered according to the requirements of the target and the temperature rising speed of each stage of the baking, and the fire is small in the initial stage of the baking, medium in the small-humidity-discharging burning and large in the large-humidity-discharging burning.
And ventilating a fan, wherein the tobacco leaves are operated at low speed to medium speed in the yellowing stage, the tobacco leaves are operated at high speed in the color fixing stage, the tobacco leaves are operated at medium speed to high speed in the temperature stabilizing stage, and the tobacco leaves are operated at medium and low speed in the stem drying stage. The conditional smoke area is advocated to use an automatic variable frequency speed regulation fan.
The sensory evaluation quality of the tobacco leaves baked in the above way is improved, the energy consumption is reduced, and the cost is saved.
Table 1: middle-upper tobacco leaf baking process
Note: the cost of the tobacco leaves in the large box of the automatic coal-feeding energy-saving environment-friendly oven 1 is about 700 kilograms of coal (the price of the coal is 0.86 yuan/kilogram) and about 602 yuan, the cost of the electricity used is 1100 ℃ (0.54 yuan/kilogram) and is 594 yuan, the total cost is about 1196 yuan, the amount of the flue-cured tobacco is 650 plus 700 kilograms, and the cost of the flue-cured tobacco is 1.70 yuan/kilogram.
The data are tabulated as follows:
table 2: energy consumption comparison table for conventional baking of large box, honeycomb duct baking and rod hanging baking
Note: calculated according to the electricity charge of 0.55 yuan/degree and the coal of 0.8 yuan/kg
Table 3: big case toasts and toasts sense organ evaluation quality of smoking statistics table with hanging pole
Claims (10)
1. The utility model provides a tobacco drying rack with honeycomb duct which characterized in that: the tobacco straw hanging frame comprises a frame body, wherein a cross beam (1), an elevated frame (2) and a low frame (12) are arranged on the frame body, a groove (6) is formed in the cross beam (1), tobacco rods (9) are placed on the groove (6), hooks I (3) are arranged on the elevated frame (2) and the low frame (12), a guide pipe (4) is arranged on the hooks I (3), a hook II (7) is arranged on the guide pipe (4), and the guide pipe (4) is hung on the hook I (3) through the hook II (7); round holes (10) are arranged on the flow guide pipe (4).
2. The tobacco drying rack with draft tube of claim 1, wherein: one end of the tobacco rod (9) is provided with a fixed seat (5), the other end of the tobacco rod (9) is provided with a mounting cap (11), and the tobacco rod (9) is suspended in the groove (6) on the cross beam (1) through the fixed seat (5) and the mounting cap (11); the front end of the tobacco rod (9) is provided with a sharp head (13).
3. The tobacco drying rack with draft tube of claim 1, wherein: the round holes (10) on the draft tube (4) are spirally arranged.
4. The tobacco drying rack with draft tube of claim 1, wherein: the high frame (2) and the low frame (12) are provided with air inlets (8).
5. A method for baking by using the flue-cured tobacco flow guide pipe of any one of claims 1 to 4, comprising the following steps: the method comprises the steps of harvesting, sorting, loading and baking the tobacco leaves, wherein the tobacco leaf yellowing stage, the tobacco leaf color fixing stage, the tobacco leaf tendon drying stage and the tobacco leaf moisture regaining stage are controlled by controlling fire and wind during baking the tobacco leaves, and the varieties, the nutrition levels, the positions and the maturity of the fresh tobacco leaves in the same baking room are consistent during sorting and loading the tobacco leaves.
6. The flue-cured tobacco honeycomb duct baking method of claim 5, characterized in that: the tobacco leaves in the tobacco leaf harvesting, sorting and loading are harvested 7-14 days after the lower tobacco leaves are topped, the color of the leaves is yellow-green, the yellow-green of the leaf surfaces accounts for 50-60%, and the main veins are whitened above 1/3; 21-35 days after the middle leaves are topped, the leaves are yellow, more green and less, the yellow green of the leaves accounts for 70-80%, the main vein is whitened, and the leaves are harvested above 2/3%; harvesting upper leaves 56-63 days after topping, wherein the leaf color is mainly yellow, the leaf surface is yellow-green and accounts for 90-100%, and the main veins are basically white; harvesting 3-4 leaves of each plant every time, harvesting every 6-7 days, wherein the harvesting maturity of tobacco leaves is improved along with the position, the lower part is harvested completely, the middle part is harvested again after 5-7 days, the middle part is harvested completely, the upper part is harvested again after 7-10 days, the upper part 6 leaves, the left leaf and the right leaf, are harvested once after being intensively and fully matured, and are harvested 4-5 times; when the tobacco is filled, the lower leaves are not less than 4500 kg/furnace, the middle leaves are not less than 5000 kg/furnace, the upper leaves are not less than 5500 kg/furnace, 10 tobacco filling boxes are arranged in each curing barn, the lower tobacco single box is 450-550 kg, the middle tobacco is 500-550kg, and the upper tobacco is 550-600 kg; the tobacco drying rack with the flow guide pipe is used for achieving uniform ventilation during baking and completely blowing tobacco leaves.
7. The flue-cured tobacco honeycomb duct baking method of claim 5, characterized in that: in the tobacco leaf yellowing stage, the dry bulb temperature is increased to 38 ℃ at the speed of 1 ℃/h, the wet bulb temperature is kept at 37-38 ℃, the temperature is stabilized, after the tobacco leaves become yellow for about 5-6 days, the dry bulb temperature is increased to 40 ℃ at the speed of 0.5-1 ℃/h, the wet bulb temperature is controlled at 37-38 ℃, the temperature is stabilized, the tobacco leaves are made to be soft by sweating, when the tobacco leaves become yellow for 8 days, the dry bulb temperature is increased to 42 ℃ at the speed of 0.5-1 ℃/h, the wet bulb temperature is kept at 36.5-37.5 ℃, the temperature is stabilized for prolonged time, the tobacco leaves are made to continue to become yellow and lose water, and then the tobacco leaves are switched to the color fixing stage; in this stage, the yellowing degree of the lower tobacco leaves reaches 8-9 yellowing, the yellowing degree of the middle and upper tobacco leaves reaches 9-10 yellowing, the yellow leaves of the tobacco leaves are green, withered and have a soft and continuous main vein.
8. The flue-cured tobacco honeycomb duct baking method of claim 5, characterized in that: in the tobacco leaf color fixing stage, the dry bulb temperature is increased to 45 ℃ at the speed of 0.5 ℃/h, the wet bulb temperature is kept at 37-38 ℃, and the temperature is stabilized, so that the tip of the tobacco leaf is hooked and curled; then the dry-bulb temperature is increased to 47-48 ℃ at the speed of 0.5-1 ℃/h, the wet-bulb temperature is controlled to 37-38 ℃, and the temperature is stabilized, so that the tobacco leaves reach the yellow-rib yellow-sheet small winding drum; continuously raising the dry bulb temperature to 50 ℃ at the speed of 1 ℃/h, controlling the wet bulb temperature to be 37.5-38.5 ℃, and stabilizing the temperature to enable the tobacco leaves to approach the large reel; then the dry bulb temperature is raised to 54 ℃ at the speed of 1 ℃/h, the wet bulb temperature is controlled to be 38.5-39.5 ℃, the temperature is stabilized, the tobacco leaves are wound into large rolls, and then the tobacco leaves are transferred to a dry stem stage; at this stage, the yellow tobacco leaf is yellow, and the leaves are completely dry.
9. The flue-cured tobacco honeycomb duct baking method of claim 5, characterized in that: in the tobacco leaf stem drying stage, the dry bulb temperature is increased to 65-68 ℃ at the speed of 1 ℃/h, the tobacco clamping tobacco is increased by 1-2 ℃ and kept stable, and the wet bulb temperature is controlled at 40-43 ℃ until the main veins of the whole-house tobacco leaves are completely dried; if the main vein of the tobacco leaves is dried slowly in the middle and later periods of the dry tobacco stems, manual adjustment is carried out, the temperature of the dry balls is controlled to be 65-68 ℃, the temperature of the wet balls is controlled to be 40-43 ℃, the air door is opened and closed intermittently, the temperature of the wet balls in the curing barn is repeatedly fluctuated within the range of 40-43 ℃, the temperature of the wet balls is slightly high within a short time, namely reaches 45 ℃, the temperature of the dry balls exceeds 68 ℃ within a short time, so that the diffusion of moisture of the tobacco stems is accelerated, and the drying of the tobacco stems is promoted.
10. The flue-cured tobacco honeycomb duct baking method of claim 5, characterized in that: in the tobacco leaf moisture regaining stage, when the relative humidity of the outside air is high, after the tobacco leaves in the whole room are confirmed to be completely dry, heat supply is stopped, the power supply of a fan is turned off, and when the temperature of the curing barn is reduced to 40-45 ℃, a tobacco door, a cold air inlet and a moisture discharging port are opened, so that the tobacco leaves can absorb moisture naturally, and the moisture content is proper; when the relative humidity of the outside air is low and the temperature of the flue-curing barn is reduced to 40-45 ℃, water is uniformly splashed to the ground of the tobacco containing chamber and the heating chamber, then the door and the window of the flue-curing barn and the air inlet are closed, the fan is started for ventilation, the humidity of the circulating air is improved by the generated steam to remoisten the tobacco leaves, if the tobacco leaves are remoistened, the tobacco leaves are reheated, the temperature is controlled to 40-45 ℃, and the vaporization of the moisture is promoted, so that the moisture content of the tobacco leaves is proper.
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| CN202010349794.8A CN111480875A (en) | 2020-04-28 | 2020-04-28 | Tobacco drying rack with flow guide pipe and flue-cured tobacco flow guide pipe baking method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115088857A (en) * | 2022-06-24 | 2022-09-23 | 山东淄博烟草有限公司 | Twice-harvesting and baking method for tobacco leaves |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115088857A (en) * | 2022-06-24 | 2022-09-23 | 山东淄博烟草有限公司 | Twice-harvesting and baking method for tobacco leaves |
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