CN106473222A - A kind of hypoxia low pressure drum-type cut-tobacco drier and baking silk method - Google Patents
A kind of hypoxia low pressure drum-type cut-tobacco drier and baking silk method Download PDFInfo
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- CN106473222A CN106473222A CN201611153625.7A CN201611153625A CN106473222A CN 106473222 A CN106473222 A CN 106473222A CN 201611153625 A CN201611153625 A CN 201611153625A CN 106473222 A CN106473222 A CN 106473222A
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- cylinder
- silk
- gas lock
- drying
- tobacco
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- 206010021143 Hypoxia Diseases 0.000 title claims abstract description 15
- 230000007954 hypoxia Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims description 11
- 238000001035 drying Methods 0.000 claims abstract description 48
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 42
- 238000007599 discharging Methods 0.000 claims abstract description 39
- 241000208125 Nicotiana Species 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 238000005485 electric heating Methods 0.000 claims abstract description 12
- 238000005086 pumping Methods 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims 1
- 244000061176 Nicotiana tabacum Species 0.000 abstract description 6
- 150000003384 small molecules Chemical class 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 43
- 235000019504 cigarettes Nutrition 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- 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
- A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
Landscapes
- Manufacture Of Tobacco Products (AREA)
Abstract
The present invention provides a kind of hypoxia low pressure drum-type cut-tobacco drier.Described cut-tobacco drier includes support, silk cylinder and drum drive mechanism are dried in electrical heating it is characterised in that:It is provided with charging gas lock in the charging aperture drying silk cylinder feed space, it is provided with discharging gas lock in the discharging opening of its discharge chamber, exhaust tube for being connected with air extractor is provided with discharge chamber, the inner chamber drying silk cylinder is led at the pumping end of described exhaust tube, and is provided with pressure test device on pump-line;Dry silk drums inside by air extractor and exhaust tube to electrical heating to be evacuated, and the air pressure being dried in silk cylinder by electric-heating control system control holding electrical heating is 0.2 0.5 normal atmospheres, the barrel temperature of heating cylinder is 60 90 DEG C.Present configuration is simple and convenient to operate, and can achieve the drying to cut tobacco under compared with low-intensity, decreases the loss that the oxidation reaction of cut tobacco drying small molecule aroma component causes, the small molecule aroma component keeping within Nicotiana tabacum L. of limits simultaneously.
Description
Technical field
The present invention relates to Cigarette processing equipment technical field, specifically a kind of hypoxia low pressure drum-type cut-tobacco drier and baking silk side
Method.
Background technology
In prior art, the conventional tumble that cut tobacco, stem drying equipment mainly adopt dries silk, two-part cut-tobacco drier, air-flow
The equipment such as drying, fluid bed drying, rely on and cut tobacco, stem are heated, and make moisture be changed into gaseous state, depart from cut tobacco and stem, because
This processes in process of production, and intensity is generally higher, and cylinder dries silk barrel temperature, and fluid bed drying gas flow temperature is substantially at 120 DEG C
More than, even up to more than 280 DEG C of pneumatic conveying drying hot blast temperature highest, processing intensity is big, and the cause perfume chemical composition in cut tobacco is damaged
Lose many, especially cigarette quality is had the small molecule of obvious positive influences to cause fragrant chemical composition loss to become apparent from, for Medicated cigarette,
Particularly high-grade cigarette product, the raw tobacco material quality that it is selected is high, and shortcoming is few, and the processing of high intensity often brings tobacco shred product
The reduction of matter, therefore reduces the processing intensity of tobacco drying process, for high-grade cigarette, demand is more urgent.
Content of the invention
The present invention provides to be provided a kind of hypoxia low pressure drum-type cut-tobacco drier according to the deficiencies in the prior art and dries silk method, should
Simple in equipment, easy to operate, by reducing the air pressure drying within silk cylinder, thus reducing the boiling point of water and the oxygen of inner barrel
Gas content, realizes the dried of cut tobacco at a lower temperature, simultaneously because being greatly reduced of inner barrel oxygen content, can
To reduce oxidation reaction in cut tobacco drying for the cut tobacco, keep the small molecule aroma component within Nicotiana tabacum L. to greatest extent.
The technical scheme that the present invention provides:A kind of described hypoxia low pressure drum-type cut-tobacco drier, dries silk including support, electrical heating
Cylinder and drum drive mechanism, dry silk cylinder feed end be provided with feed space, discharge end be provided with discharge chamber it is characterised in that:
It is provided with charging gas lock in the charging aperture drying silk cylinder feed space, be provided with discharging gas lock in the discharging opening of its discharge chamber, in discharge chamber
It is provided with the exhaust tube for being connected with air extractor, the inner chamber drying silk cylinder is led at the pumping end of described exhaust tube, and is taking out
Feed channel is provided with pressure test device;Dry silk drums inside by air extractor and exhaust tube to electrical heating to be evacuated, and
Controlling electrical heating to dry the air pressure in silk cylinder by pressure test device is 0.2-0.5 normal atmosphere, by electrical heating system
System controls the barrel temperature of heating cylinder to be 60-90 DEG C.
The present invention preferably technical scheme:Described charging gas lock and discharging gas lock are by sealed cylinder airlock chamber and to put
In the rotary gas lock composition of gas lock intracavity, charging aperture and discharging opening are provided with airlock chamber;Described rotary gas lock is by revolving
Rotating shaft and 3-5 gas lock blade being uniformly arranged on the rotary shaft form, and rotary shaft is controlled by electric rotating machine, multiple gas lock leaves
The edge of piece is all touched with the inwall of airlock chamber, and airlock chamber is separated into multiple seal cavities, is arranged on airlock chamber upper feeding
Mouth is arranged in two different seal cavities with discharging opening.
The present invention preferably technical scheme:Described electrical heating is dried silk cylinder and is included housing, electric heater unit and be arranged on shell
Internal multiple harrow nails, described electric heater unit is by heater, temperature control equipment and to be arranged on inner walls or outer wall
Electric heating device, described electric heating device electric heater unit is resistive heater or electric heating heating rod or heating coil.
The present invention preferably technical scheme:It is provided with sealing strip in each gas lock blade and airlock chamber engagement edge.
The present invention preferably technical scheme:The described charging aperture being opened in airlock chamber and discharging opening are separately positioned on not phase
In two adjacent seal cavities.
A kind of hypoxia low pressure that the present invention provides dries silk technique, using drum-type cut-tobacco drier it is characterised in that in electrical heating
The charging aperture drying silk cylinder is provided with charging gas lock, and discharging opening is provided with discharging gas lock, and cylinder is provided with air extractor, its concrete steps
As follows:
(1) before charging, by air extractor to drying the pumping of silk cylinder, it is reduced to a standard by drying silk cylinder internal gas pressure
The 20%-50% of atmospheric pressure;
(2) when the pressure that step (1) is dried in silk cylinder reaches design requirement, tobacco shred is locked into into the rolling of baking silk by feeding gas
In cylinder, the inner wall temperature drying silk cylinder is controlled to be 60-90 DEG C, tobacco shred is defeated to discharging opening in the presence of the rotation of cylinder and harrow nail
It is sent into row and dries silk, the air pressure passing through in cut tobacco drying in pressure test device and air extractor control cylinder is 0.2-0.5
Normal atmosphere;The tobacco shred being baked passes through the output of discharging gas lock and dries silk cylinder, enters next operation.
The present invention before use, by gas extraction system extract cylinder in air, reduce inner barrel air pressure and
Oxygen content, makes pressure in cylinder be reduced to the 20-50% of normal atmosphere (An), the floating-point of water is changed into 60-80 DEG C, in relatively low baking
At a temperature of silk, input and output material gas lock prevents the exchange of an inner air and outer air, prevents extraneous other gas from entering in cylinder, pressure in holding cylinder
Stable, when producing beginning, material is locked in baking silk cylinder by feeding gas, dries silk cylinder and is heated up by electric heater unit, to tobacco shred
It is dried dehydration, under relatively low pressure, under the conditions of temperature is less than 100 DEG C in cylinder, can achieve the purpose of moisture vaporization, real
The low-intensity processing of existing cut tobacco.The cylinder of the present invention is heated up using electrically heated mode, and temperature can be adjusted according to demand automatically
Section, adjustment amplitude is big, and minimum temperature can be less than 100 DEG C, adapts to large range of temperature adjustment, and discharging gas lock blade journey is clockwise
Rotation, makes material send, and discharging gas lock can prevent the outer air of cylinder from entering in cylinder, in holding cylinder while material detachment roller
Pressure is stable, and gas extraction system possesses air in extraction cylinder and reduces atmospheric pressure in cylinder, extract the dampness that cut tobacco dry run produces,
Dedusting, the several functions of the intrinsic pressure strong stability of holding cylinder.
Whole equipment reasonable in design of the present invention, exchange construction is simple and convenient to operate, and is dried within silk cylinder by reducing
Air pressure, thus reducing the boiling point of water, just can make water be converted into gas at a lower temperature, reducing the processing of production process
Intensity, can achieve the drying to cut tobacco, simultaneously because air is extracted out in a large number in cylinder, in drying equipment under compared with low-intensity
Portion's oxygen content substantially reduces, and decrease cut tobacco drying small molecule aroma component answers the loss that oxidation reaction causes, limits
Keep the internal small molecule aroma component of Nicotiana tabacum L., the organoleptic quality of high-grade Nicotiana tabacum L. can be kept, thus volume after improving processing
The quality of cigarette.
Brief description
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the charging gas lock of the present invention and the structural representation of discharging gas lock;
Fig. 3 is the temperature control schematic diagram of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described.As figure
Shown in 1, a kind of hypoxia low pressure drum-type cut-tobacco drier, dry silk cylinder 2 and drum drive mechanism 3 including support 1, electrical heating, described
The structure that silk cylinder 2 is existing cylinder is dried in electrical heating, including barrel and electric heater unit, is provided with multigroup rake in cylinder body
Nail, electric heater unit is by heater, temperature control equipment and the electric heating device being arranged on drum housing inwall or outer wall, institute
Stating electric heating device can be resistive heater or electric heating heating rod or heating coil or electric boiling plate, and concrete installation is to roll
The housing of cylinder is arranged to double-decker, and outer layer is heat-insulation layer, and internal layer is metal level, by resistive heater or electric heating heating rod or
Heating coil or electric boiling plate are arranged in interlayer, then pass through wire and are connected with extraneous heater, are entered by heater
Row heating.In order to be controlled to barrel temperature, it is provided with multiple temperature sensors in cylinder inwall, as shown in figure 3, multiple temperature passes
Sensor is connected with temperature controller, the temperature of detection inner wall of rotary drum, and passes information to temperature controller, by temperature controller
To control heater that cylinder is heated, electric heater unit temperature can be adjusted flexibly the temperature drying silk barrel, range of accommodation
50-200℃.Described drum drive mechanism 3 by motor, main driving wheel and is arranged on multiple driven pulleys of cylinder outer wall and forms,
Rotated by motor control main driving wheel, thus driving multiple driven pulleys to rotate the rotation realizing cylinder.
Enter for the ease of material and can run to discharging opening after cylinder, it is low that barrel is arranged to the high discharge end of feed end
Skewed, its angle of inclination is 2-5 °, dries in silk cylinder when material enters, and by drying the rotation of silk cylinder, makes material in baking silk cylinder
Rotation is fallen, and finally exports from blanking port.As shown in figure 1, the feed end drying silk cylinder 2 in electrical heating is provided with feed space 4, discharging
End be provided with discharge chamber 5 it is characterised in that:It is provided with charging gas lock 6 in the charging aperture drying silk cylinder 2 feed space 4, in its discharge chamber 5
Discharging opening be provided with discharging gas lock 7.Described charging gas lock 6 and discharging gas lock 7 can for existing structure it can be ensured that material just
Often pass in and out, and ensure that charging aperture and discharging opening will not gas leakage.Its concrete structure can also be as shown in Fig. 2 be by sealed cylinder
Shape airlock chamber 6-1 and the rotary gas lock composition being placed in gas lock intracavity, are provided with charging aperture and discharging opening in airlock chamber 6-1;Institute
State rotary gas lock to be made up of with 3-5 gas lock blade 6-3 being uniformly arranged on the rotary shaft rotary shaft 6-2, rotary shaft 6-2
Controlled by electric rotating machine 6-4, the edge of multiple gas lock blade 6-3 is all touched with the inwall of airlock chamber, in each engagement edge
It is equipped with sealing strip 6-5, airlock chamber 6-1 is separated into multiple seal cavities, be arranged on the enterprising material mouth of airlock chamber 6-1 and discharging opening
It is arranged in two different seal cavities, be preferably disposed on non-conterminous two annular seal spaces.Material is from one of sealing
Charging aperture on chamber enters, and then under the rotation of rotary gas lock, material is shifted onto the sealing intracavity being provided with discharging opening, then
Enter in cylinder by discharging opening, do not have unnecessary gas entrance, discharging process and fill process phase during charging
Same, ensure that in the case of normal charging and discharging, the air pressure in cylinder is not had with too big impact.
In order to ensure to be in low-pressure state in cylinder, the pumping for being connected with air extractor 10 is provided with discharge chamber 5
Pipe 8, described air extractor 10 can be vacuum air pump, directly pass through exhaust tube 8 and the inner space drying silk cylinder 2, to rolling
It is evacuated in cylinder, for the detection to rolling cylinder pressure, pressure test device 9, described air pressure inspection are provided with pump-line 8
Survey device and directly can detect table or other air pressure detection probe for air pressure, the air pressure in cylinder can be detected, then
The data of detection is fed directly to the controller of air extractor 8, air extractor 8 is controlled by controller, or shows
By manually to control air extractor 8, baking silk cylinder 2 is evacuated it is ensured that drying silk in cut tobacco drying by air extractor 8
Air pressure in cylinder 2 is 0.2-0.5 normal atmosphere.
The specific implementation process of the present invention:
(1) before charging, it is evacuated to drying silk cylinder 2 by air extractor, be reduced to a mark by drying silk cylinder internal gas pressure
The 20%-50% of quasi- atmospheric pressure, i.e. 12000-50000pa, now the boiling point of water be reduced to 50-80 DEG C;
(2) when the pressure that step (1) is dried in silk cylinder reaches requirement, tobacco shred is passed through charging aperture into baking silk cylinder 2
Conveying, charging gas lock 6 turns clockwise and brings material in baking silk cylinder 2 into, controls baking silk cylinder 2 by heater simultaneously
Inner wall temperature be 60-90 DEG C, tobacco shred carries out drying silk mistake to discharging opening conveying in the presence of drying the rotation of silk cylinder 2 and harrow nail
Journey, and be evacuated by air extractor and dehumidifying in cut tobacco drying, control the air pressure in cylinder to be that 0.2-0.5 standard is big
Air pressure, silk cylinder is dried in discharging gas lock 7 output that the tobacco shred being baked passes through to turn clockwise, and enters next operation, dries the silk time
As the conventional baking silk time, general 4-6 minute;In whole cut tobacco drying, air extractor 8 is except playing the effect of pumping
Outward, may also operate as dehumidifying, dustproof function.
The present invention can reach drying leaf-silk at a lower temperature, reduces the purpose of moisture in cut tobacco, when producing beginning, when
Material enters after drying silk cylinder 2, and air extractor Main Function is changed into discharges the steam that cut tobacco dry run produces, and keeps simultaneously
Dry the stable gas pressure in silk cylinder, keep the balance of pressure, be also equipped with the effect in cut tobacco drying dedusting, the air pressure in cylinder simultaneously
Can be adjusted according to the demand drying silk temperature by force, select rational baking silk temperature under specific pressure conditions.
The present invention devises a kind of hypoxia low pressure cut-tobacco drier, is capable of to the drying to cut tobacco under compared with low-intensity
Reason, maintains the flavor matter in Nicotiana tabacum L. to greatest extent it is achieved that real low-intensity is processed, solves current apparatus processing
Intensity is big, the many problems of aroma component loss in Nicotiana tabacum L..
The above, the only specific embodiment of the present invention, but the protection domain of invention is not limited thereto, any genus
In those skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (6)
1. a kind of hypoxia low pressure drum-type cut-tobacco drier, dries silk cylinder (2) and drum drive mechanism including support (1), electrical heating
(3), dry silk cylinder (2) feed end be provided with feed space (4), discharge end be provided with discharge chamber (5) it is characterised in that:Drying silk
The charging aperture of cylinder (2) feed space (4) is provided with charging gas lock (6), is provided with discharging gas lock (7) in the discharging opening of its discharge chamber (5),
Exhaust tube (8) for being connected with air extractor (10) is provided with discharge chamber (5), the pumping end of described exhaust tube (8) is led to
The inner chamber of silk cylinder (2) is dried in electrical heating, and is provided with pressure test device (9) on pump-line (8);By air extractor (10)
It is evacuated inside silk cylinder (2) to drying with exhaust tube (8), and control electrical heating to dry silk cylinder by pressure test device (9)
(2) air pressure in is 0.2-0.5 normal atmosphere, controls the barrel temperature drying silk cylinder (2) to be 60- by electric heating system
90℃.
2. a kind of hypoxia low pressure drum-type cut-tobacco drier according to claim 1 it is characterised in that:Described charging gas lock (6)
By sealed cylinder airlock chamber (6-1) and it is placed in the rotary gas lock of gas lock intracavity and forms with discharging gas lock (7), in gas lock
(6-1) is provided with charging aperture and discharging opening in chamber;Described rotary gas lock is by rotary shaft (6-2) and to be uniformly arranged on the rotary shaft
3-5 gas lock blade (6-3) composition, rotary shaft (6-2) passes through electric rotating machine (6-4) and controls, multiple gas lock blades (6-3)
Edge is all touched with the inwall of airlock chamber, and airlock chamber (6-1) is separated into multiple seal cavities, is arranged on airlock chamber (6-1)
Enterprising material mouth is arranged in two different seal cavities with discharging opening.
3. a kind of hypoxia low pressure drum-type cut-tobacco drier according to claim 1 it is characterised in that:Silk rolling is dried in described electrical heating
Cylinder (2) includes housing, electric heater unit and the multiple harrow nails being arranged in housing, and described electric heater unit is by heater, temperature
Degree control device and the electric heating device (11) being arranged on inner walls or outer wall, described electric heating device electric heater unit is to add
Hot water radiation wire or electric heating heating rod or heating coil.
4. a kind of hypoxia low pressure drum-type cut-tobacco drier according to claim 2 it is characterised in that:In each gas lock blade
(6-3) it is provided with sealing strip (6-5) with airlock chamber (6-1) engagement edge.
5. a kind of hypoxia low pressure drum-type cut-tobacco drier according to claim 2 it is characterised in that:Described it is opened in airlock chamber
(6-1) charging aperture on and discharging opening are separately positioned on non-conterminous two seal cavities (6-5).
6. a kind of hypoxia low pressure dries silk method, using drum-type cut-tobacco drier it is characterised in that dry the charging of silk cylinder in electrical heating
Mouth is provided with charging gas lock, and discharging opening is provided with discharging gas lock, and cylinder is provided with air extractor, and it comprises the following steps that:
(1) before charging, by air extractor to drying the pumping of silk cylinder, it is reduced to a standard atmosphere by drying silk cylinder internal gas pressure
The 20%-50% of pressure;
(2) when the pressure that step (1) is dried in silk cylinder reaches design requirement, tobacco shred is locked into into baking silk cylinder by feeding gas
Interior, control the inner wall temperature drying silk cylinder to be 60-90 DEG C, tobacco shred conveys to discharging opening in the presence of the rotation of cylinder and harrow nail
Carry out drying silk, be persistently evacuated and dehumidifying by air pressure air extractor in cut tobacco drying, extract the water that cut tobacco dry run produces
Vapour, and control the air pressure in cylinder to be 0.2-0.5 normal atmosphere by detection means, the tobacco shred being baked passes through discharging gas lock
Silk cylinder is dried in output, enters next operation.
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CN201611153625.7A CN106473222B (en) | 2016-12-14 | 2016-12-14 | A kind of hypoxemia low pressure drum-type cut-tobacco drier and baking silk method |
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Cited By (8)
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CN106912977A (en) * | 2017-04-06 | 2017-07-04 | 刘海明 | A kind of efficient and environment-friendly type tobacco drying plant |
CN107183776A (en) * | 2017-07-27 | 2017-09-22 | 云南中烟工业有限责任公司 | A kind of convection heat transfer' heat-transfer by convection piece cigarette multiple roasting method and device |
CN108450996A (en) * | 2018-04-16 | 2018-08-28 | 智思控股集团有限公司 | A kind of vacuum cut-tobacco drier and its vacuum dry silk method |
CN109298688A (en) * | 2018-09-21 | 2019-02-01 | 云南中烟工业有限责任公司 | A method of barrel temperature is determined based on content of reducing sugar in pipe tobacco online |
CN110115393A (en) * | 2019-06-11 | 2019-08-13 | 红云红河烟草(集团)有限责任公司 | Low-oxygen redrying process |
CN110260616A (en) * | 2019-07-23 | 2019-09-20 | 盐城腾一达环保设备有限公司 | A kind of electric dryer |
CN113455686A (en) * | 2021-07-26 | 2021-10-01 | 河南中烟工业有限责任公司 | Multifunctional tobacco vacuum treatment test system |
CN114515013A (en) * | 2020-11-19 | 2022-05-20 | 秦皇岛烟草机械有限责任公司 | Tobacco charging mechanism |
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CN205321186U (en) * | 2015-12-28 | 2016-06-22 | 山东中烟工业有限责任公司 | Inside environmental control system of drum -type cut -tobacco drier |
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