CN101491368A - Combined thermal transmission type micro roller drying device of tobacco - Google Patents
Combined thermal transmission type micro roller drying device of tobacco Download PDFInfo
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- CN101491368A CN101491368A CNA2009100643734A CN200910064373A CN101491368A CN 101491368 A CN101491368 A CN 101491368A CN A2009100643734 A CNA2009100643734 A CN A2009100643734A CN 200910064373 A CN200910064373 A CN 200910064373A CN 101491368 A CN101491368 A CN 101491368A
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Abstract
The invention provides a tobacco combined heat transfer type small-sized roller drying device, which comprises a pre-heater connected with a gas source and a water source, a saturated humid air generator, a mixer, a roller device and a data acquisition device, wherein the pre-heater and the saturated humid air generator can send gases generated to the mixer by conveying pipes respectively, and the gases are mixed and sent to the roller device by a rotary connector to make the staying time controllable treatment on the cut tobacco in the roller; and the pre-heater, the saturated humid air generator, the mixer and the temperature of air flow sent to the roller device can be controlled by an intelligent temperature control instrument. The drying device has the essential characteristics that under the conditions of controlling the rotary speed and the temperature of the roller wall of the roller, the roller and an introduced dried gas medium jointly processes a certain amount of cut tobacco samples in the roller in the set drying time; simultaneously, during the processing, partial cut tobacco is taken out for analysis and evaluation on physical, chemical and aesthetic quality; furthermore, the analysis and the judgment on the processing quality property of the cut tobacco in the drying process are made.
Description
Technical field
The present invention relates to tobacco processing equipment, it specifically is a kind of combined thermal transmission type micro roller drying device of tobacco, be at pipe tobacco (or cigarette raw materials such as stem, thin slice) or sheet cigarette controllable compound conduct heat (barrel temperature, gas medium temperature and humidity) and certain drum rotation speed condition under carry out the midget plant of drying, maximum batch processing amount is 1kg.
Background technology
In the tobacco process of manufacture, drum dryer based on complex heat transfer is most widely used, process at pipe tobacco (or cigarette raw materials such as stem, thin slice) is a steady-state process, and wet transmission of the heat that pipe tobacco takes place in steady-state process is transient process, and crudy is the core of steady-state process control with the variation characteristic of the processing condition and the time of staying in the transient process.The primary structure of actual production intermediate roll cut-tobacco drier has several parts such as drying drum, transmission system, air supply system, hot-air system, condenser system, compressed air system and electronic control system.It as thermal source, conducts heating by the heating plate of arranging in heating barrel and the tube to pipe tobacco with steam, and introduces hot-air flow from the outside to cylinder pipe tobacco is carried out the convection heat transfer' heat-transfer by convection drying.
The researcher is at physics in wet transfer characteristic of pipe tobacco heat that takes place in the cylinder and the process thereof, certain research was carried out in the variation of chemical property, the method majority that is adopted is the drying Process under the single heat transfer, promptly in the dry run of having only under the convection heat transfer' heat-transfer by convection condition (being hot-air drying process), by intermittent sampling or measurement under the different time of staying variation of physics in the process and chemical property is studied, with this as estimating drum dryer tobacco quality variation characteristic, because basic heat transfer type single (process has only been considered convection heat transfer' heat-transfer by convection), so result who obtains and pipe tobacco roller drying process have very big difference, but experimental data can be described the drying rule under the single heat transfer preferably, so this method is widely used at food processing field.
In pipe tobacco roller drying research, software engineering researchers invent has been arranged experimental provision that can complex heat transfer, this experimental provision system is made up of several parts such as test block, measurement mechanism, hot-air system, humidification system, bottom heaters.Humidification system is used for regulating the initial water capacity of experiment with air, and the bottom heater is in order to increase the conduction heat transfer mode, and the bottom is heated to be several electric heating sheets.The heat transfer type of this device has well been realized the dry run to complex heat transfer to a certain extent, but because there are two kinds of motor patterns in pipe tobacco in cylinder, the first is along with heat-conducting plate is done lifter motion together, another is to move to certain angle at heat-conducting plate, pipe tobacco is freely shed, and the pipe tobacco state in this device is static accumulation, and the conduction heat transfer mode can not be handled pipe tobacco uniformly, simultaneously electric heating sheets can't satisfy temperature field on the sheet evenly; Exist the temperature and humidity conditions of humid air uncontrollable simultaneously.Therefore this device does not have well to solve the relevant issues of the roller drying under the complex heat transfer.
And there is following problem in research pipe tobacco processing characteristics on the employed aborning pipe tobacco drum drying equipment: 1, the excessive (300kg/h～10000kg/h), cause the pipe tobacco waste of pipe tobacco consumption; 2, meso sample can't take out, and causes the difficulty of research quality and time of staying relation, and 3, the adjusting range and the control accuracy of production equipment operating parameter be limited, easily causes the nonrepeatability of realization data.
Summary of the invention
The present invention is just at existing laboratory research device and the deficiency of production equipment in scientific research, a kind of combined thermal transmission type micro roller drying device of tobacco that uses in the laboratory is provided, and this device can be at pipe tobacco (or cigarette raw materials such as stem, thin slice) withering device under controllable compound heat transfer (barrel temperature, temperature and humidity of hot air in the simulation pipe tobacco drum drying equipment) and drum rotation speed (motion process of simulation pipe tobacco in cylinder) condition.
Purpose of the present invention can realize by following technique measures: combined thermal transmission type micro roller drying device of tobacco of the present invention, comprise the preheater that is connected with the water source with source of the gas, the saturated moist air generator, blender, drum apparatus and data acquisition unit, the gas that preheater and saturated moist air generator can will be produced by transfer pipeline is respectively separately sent into and is entered in the drum apparatus through swivel joint after blender mixes again, pipe tobacco in the cylinder is carried out the processing of the controlled time of staying, wherein preheater, the saturated moist air generator, blender and the gas flow temperature of sending into drum apparatus all can be controlled by intelligent temperature control instrument.
Described drum apparatus is by outer fixed cylinder, form by supporting interior rolling barrel and the cylinder activity side cover that tugboat is arranged in the outer fixed cylinder, on interior rolling barrel inwall, be provided with flight, interior rolling barrel rotates by motor-driven, motor is a variable-frequency motor, covers in the cylinder active side and is provided with thief hole and gas vent.
Rolling barrel and flight are the sandwich that communicates in described, are provided with agitating member and are filled with to add deep fat in interlayer.
Be provided with heating rod between fixed cylinder and the interior roller tube outside, and be laid with intelligent temperature control instrument and temperature sensor.
Induction port place at interior rolling barrel is provided with gas distribution grid.
In the present invention, preheater, blender are sandwich, are equipped with heating element heater in interlayer, and this heating element heater is all controlled by intelligent temperature control instrument.
In the saturated moist air generator, be provided with intelligent temperature control instrument.
In the present invention, the outer wall of described preheater, saturated moist air generator, blender, drum apparatus and corresponding connecting pipe outer wall are equipped with heat-insulation layer.
Be correspondingly provided with temperature sensor in the pipeline heat insulation layer in preheater, blender interlayer or heat-insulation layer and between blender and the swivel joint.
Used source of the gas may be selected to be any one in air, nitrogen or the carbon dioxide.
Substantive distinguishing features of the present invention is: cylinder is set the processing of drying time jointly with the dry gas medium that feeds to a certain amount of tobacco sample in the cylinder under the certain rotating speed and barrel temperature conditions of control.
The present invention has following advantage compared to existing technology:
1, this device can form the roller drying condition of wide region.Specifically be the multi-selection of dry gas medium, gas medium can be selected air, nitrogen, carbon dioxide etc.; Moist steam dividing potential drop maximum can reach 80%～90% in the dry gas medium, control accuracy 5%; The drying medium temperature controlling range is 60 ℃～180 ℃, control accuracy ± 1 ℃; Cylinder barrel temperature reaches as high as 180 ℃, control accuracy ± 1 ℃; Controllable rotation speed is built in 0～20 rev/min.
2, this device is the batch processing device.Be convenient to the pipe tobacco processing time is controlled, the part pipe tobacco can be taken out in the while processing procedure and do physics, chemistry and aesthetic quality's analysis and evaluation, analyze and judgement so this device can be made pipe tobacco crudy feature in the dry run.
3, the batch processing amount of this device is 100g～1000g, and maximum throughput is 10kg/h
4, use the barrel of interlayer can guarantee the even of barrel temperature, barrel temperature extreme difference is less than 3 ℃.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 cuts open figure for the drum apparatus master.
Fig. 3 is the drum apparatus cross-sectional view.
Among the figure: 1, the metering water pump, 2, flowmeter, 3, preheater, 4, the saturated moist air generator, 5, blender, 6, the gas medium pipeline, 7, the heating tape, 8, intelligent temperature control instrument, 9, temperature sensor, 10, heating element heater, 11, swivel joint, 12, drum apparatus, 13, outer fixed cylinder, 14, interior rolling barrel, 15, support tugboat, 16, flight, 17, agitating member, 18, thief hole, 19, gas vent, 20, bearing, 21, heating rod, 22, add deep fat, 23, cylinder outer wall, 24, gas distribution grid, the movable side cover of 25 cylinders, 26, motor, 27, pipe tobacco.
The specific embodiment
The present invention is further described below in conjunction with accompanying drawing:
As Figure 1-3: combined thermal transmission type micro roller drying device of tobacco of the present invention, comprise the preheater 3 that is connected with the water source with source of the gas, saturated moist air generator 4, blender 5, drum apparatus 12 and data acquisition unit, the gas that preheater 3 and saturated moist air generator 4 can will be produced by transfer pipeline is respectively separately sent into and is entered in the drum apparatus 12 through swivel joint 11 after blender 5 mixes again, pipe tobacco in the cylinder is carried out the processing of the controlled time of staying, and wherein preheater 3, saturated moist air generator 4, blender 5 and the gas flow temperature of sending into drum apparatus 12 all can be by intelligent temperature control instrument 8 controls.
Described drum apparatus 12 is by outer fixed cylinder 13, form by supporting interior rolling barrel 14 and the cylinder activity side cover 25 that tugboat 15 is arranged in the outer fixed cylinder, on interior rolling barrel inwall, be provided with flight 16, interior rolling barrel 14 drives rotation by motor 26, motor 26 is a variable-frequency motor, is provided with thief hole 18 and gas vent 19 on the movable side cover 25 of cylinder.
Rolling barrel 14 and flight 16 are the sandwich that communicates in described, are provided with agitating member 17 and are filled with to add deep fat 22 in interlayer.
Be provided with heating rod 21 between fixed cylinder 13 and the interior rolling barrel 14 outside, and be laid with intelligent temperature control instrument 8 and temperature sensor 9.
Induction port place at interior rolling barrel 14 is provided with gas distribution grid 24.
In the present invention, preheater 3, blender 5 are sandwich, are equipped with heating element heater 10 in interlayer, and this heating element heater is all by intelligent temperature control instrument 8 controls.
In saturated moist air generator 4, be provided with intelligent temperature control instrument 8.
In the present invention, the outer wall of described preheater 3, saturated moist air generator 4, blender 5, drum apparatus 12 is equipped with heat-insulation layer, is equipped with heating tape and heat-insulation layer on the pipeline between blender 5 and the swivel joint 11.
In preheater 3, blender 5 interlayers or heat-insulation layer and in the pipeline heat insulation layer between blender and the swivel joint, be correspondingly provided with temperature sensor 9.
Operation principle of the present invention and process are as follows:
Dry gas medium in this equipment forms to be needed by realizing with lower device:
Embodiment 1 is more than 90 ℃ under the condition setting the dry gas medium temperature, can adopt from over dry source of the gas (air, nitrogen, CO
2) draw, enter in the preheater 3 through the gas pipeline of flowmeter 2 control certain flow gases along the direction of arrow, enter in the blender 5 through preheater along the direction of arrow, by calculating water capacity in the dry gas medium that obtains to set, the output water yield of the metering water pump of setting 1, the water of output enters along the waterpipe of the direction of arrow and carries out preheating in the preheater 3, heat up, gasification, enter in the blender 5 through preheater along the direction of arrow, adding heat by 8 pairs of preheaters 3 of intelligent temperature control instrument and blender 5 controls, temperature control herein is set at and is higher than about 5 ℃～10 ℃ of dry gas medium temperatures, the dry gas medium of the certain water capacity that forms in the blender passes through the dry gas medium pipeline in swivel joint 11 enters drying drum device 12 along the direction of arrow, on the dry gas medium pipeline between blender 5 and the swivel joint 11, be equipped with heating tape 7 and heat-insulation layer, simultaneously intelligent temperature control instrument 8 is set at the pipeline end, by intelligent temperature control instrument the heating tape on the dry gas medium pipeline 7 is added heat and control, temperature control herein is set at dry gas medium temperature setting value.
Embodiment 2 is under 90 ℃ of following conditions setting the dry gas medium temperature, can adopt from over dry source of the gas (air, nitrogen, CO
2) draw, enter in the gas passage of preheater 3 through the gas pipeline of flowmeter 2 control certain flow gases along the direction of arrow, enter in the blender 5 through preheater 3 along the direction of arrow, obtain to set the over dry dry gas flow of saturated moist air at a certain temperature by calculating, adopt from over dry source of the gas (air, nitrogen, CO
2) draw, enter saturated moist air generator 4 through flowmeter control certain flow gas along the direction of arrow, be provided with in the saturated moist air generator 4 and add hot charging element 10, intelligent temperature control instrument 8 and heat-insulation layer, temperature by 8 pairs of saturated moist air generators 4 of intelligent temperature control instrument is controlled, this process is to form saturated with moisture under the design temperature by the mode that gas is carried secretly, the saturated with moisture that forms enters in the blender 5 through utilidor along the direction of arrow, the heat that adds by 8 pairs of preheaters 3 of intelligent temperature control instrument and blender 5 is controlled, temperature control herein is set at and is higher than about 5 ℃～10 ℃ of dry gas medium temperatures, the dry gas medium of the certain water capacity that forms in the blender passes through the dry gas medium pipeline in swivel joint 11 enters drying drum device 12 along the direction of arrow, on the dry gas medium pipeline between blender 5 and the swivel joint 11, be equipped with heating tape 7 and heat-insulation layer, add heat by the heating tape 7 on 8 pairs of dry gas medium pipelines of intelligent temperature control instrument and control, temperature control herein is set at dry gas medium temperature setting value.
The barrel temperature controlling can realize in the following manner in the cylinder of this device: drum apparatus 12 comprises outer fixed cylinder 13 and interior rolling barrel that has interlayer 14 that can rotate freely and the flight 16 (4～8) that is attached thereto are formed, the interlayer inside of interior rolling barrel 14 and flight 16 is UNICOMs, charge in the interlayer 90%～95% volume can heat add deep fat 22, form the oil bath in the interlayer, be provided with in the interior rolling barrel 14 can in rotary course, play to strengthen and add the fully mixed agitating member 17 of deep fat and the distributed temperature sensor 9 of temperature detection, interior rolling barrel 14 outsides evenly are provided with many heating rods 21, and intelligent temperature control instrument 8 is set therein, unite by intelligent temperature control instrument 8 and distributed temperature sensor 9 and realize internal rolling barrel 14 temperature controlling.Fixed cylinder 13 and heat-insulation layer outside outside the annular space of being made up of many heating rods 21 being, outer fixed cylinder 13 and heat-insulation layer are transfixions in hot procedure for wet processing, promptly do not rotate with interior rolling barrel 14.
Cylinder in this device rotates and the control of rotating speed can realize in the following manner: interior rolling barrel 14 is driven by variable-frequency motor 26, the realization of rotating speed is that the frequency of the adjusting variable-frequency motor that passes through is carried out the adjusting control to rotating speed, interior rolling barrel 14 is arranged in the outer fixed cylinder rolling barrel 14 even running in rotation process in can guaranteeing by supporting tugboat 15.
The turnover of dry gas medium can realize in the following manner in this device: the air chamber during the dry gas medium enters in the cylinder by swivel joint 11, the dry gas medium is behind distribution grid 24, air-flow is uniformity relatively, this air-flow with roll in the pipe tobacco 27 that flies away and after the pipe tobacco on the flight 16 contact, level is passed through this cylinder.Be provided with gas vent 19 at the movable side cover 25 of the cylinder of the other end of cylinder, handle back gas through this outlet by exhaust system row from the test block.
The adding of tobacco sample in this device, taking-up and whole discharge can realize in the following manner: this treating apparatus is batch formula treating apparatus, on the movable side cover 25 of cylinder, two thief holes 18 are set, after treatment conditions are stable, a certain amount of pipe tobacco 27 of will packing into pushes in the cylinder, for guaranteeing feeding homogeneity, in reinforced process, cylinder is wanted slow rotation.Behind reinforced the end, after after a while,, in time utilize dispenser that sample is taken out in certain sample according to the requirement of test processing to example weight.After this repeat above-mentioned process of the test.After experiment finishes, movable side cover 25 is opened, by tilting, the angle of inclination can be 0-90 °, and the pipe tobacco after handling in the cylinder is taken out, and cylinder is recovered horizontal level with cylinder, finish this test after, sets new treatment conditions, prepare next time and test.
Data acquisition unit in this device is with gas flow signal (gas flowmeter) in the process, gas temperature signal, and the barrel temperature signal enters computer by data collecting system, is convenient to data record, arrangement and analysis.
Claims (10)
1, a kind of combined thermal transmission type micro roller drying device of tobacco, it is characterized in that, it comprises the preheater (3) that is connected with the water source with source of the gas, saturated moist air generator (4), blender (5), drum apparatus (12) and data acquisition unit, the gas that preheater (3) and saturated moist air generator (4) can be respectively will be produced separately by transfer pipeline is sent into and is passed through swivel joint (11) again after blender (5) mixes and enter in the drum apparatus (12), pipe tobacco in the cylinder (27) is carried out the processing of the controlled time of staying, wherein preheater (3), saturated moist air generator (4), blender (5) and the gas flow temperature of sending into drum apparatus (12) all can be passed through intelligent temperature control instrument (8) control.
2, combined thermal transmission type micro roller drying device of tobacco according to claim 1, it is characterized in that: drum apparatus (12) is by outer fixed cylinder (13), form by supporting interior rolling barrel (14) and the cylinder activity side cover (25) that tugboat (15) is arranged in the outer fixed cylinder, on interior rolling barrel (14) inwall, be provided with flight (16), interior rolling barrel (14) drives rotation by motor (26), is provided with thief hole (18) and gas vent (19) on the movable side cover of cylinder (25).
3, combined thermal transmission type micro roller drying device of tobacco according to claim 2 is characterized in that: interior roller tube (14) and flight (16) are the sandwich that communicates, and are provided with agitating member (17) and are filled with to add deep fat (22) in interlayer.
4, combined thermal transmission type micro roller drying device of tobacco according to claim 2 is characterized in that: be provided with heating rod (21) between outer fixed cylinder (13) and the interior rolling barrel (14), and be laid with intelligent temperature control instrument (8) and temperature sensor (9).
5, combined thermal transmission type micro roller drying device of tobacco according to claim 2 is characterized in that: be provided with gas distribution grid (24) at the air inlet place of interior rolling barrel (14).
6, combined thermal transmission type micro roller drying device of tobacco according to claim 2 is characterized in that: motor (26) is a variable-frequency motor.
7, combined thermal transmission type micro roller drying device of tobacco according to claim 1, it is characterized in that: preheater (3), blender (5) are sandwich, be equipped with heating element heater (10) in interlayer, this heating element heater is all controlled by intelligent temperature control instrument (8).
8, combined thermal transmission type micro roller drying device of tobacco according to claim 1 is characterized in that: be provided with intelligent temperature control instrument (8) in saturated moist air generator (4).
9, combined thermal transmission type micro roller drying device of tobacco according to claim 1 is characterized in that: the outer wall of described preheater (3), saturated moist air generator (4), blender (5), drum apparatus (12) and corresponding connecting pipe outer wall are equipped with heat-insulation layer.
10, according to claim 7 or 9 described combined thermal transmission type micro roller drying device of tobacco, it is characterized in that: be correspondingly provided with temperature sensor (9) in the pipeline heat insulation layer in preheater, blender interlayer or heat-insulation layer and between blender and the swivel joint.
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| CN2009100643734A CN101491368B (en) | 2009-03-12 | 2009-03-12 | Combined thermal transmission type micro roller drying device of tobacco |
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| CN2009100643734A CN101491368B (en) | 2009-03-12 | 2009-03-12 | Combined thermal transmission type micro roller drying device of tobacco |
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| CN101491368A true CN101491368A (en) | 2009-07-29 |
| CN101491368B CN101491368B (en) | 2012-02-08 |
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| CN108720072A (en) * | 2018-05-30 | 2018-11-02 | 滁州卷烟材料厂 | A kind of drying means of big moisture tobacco leaf drying throwing |
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| WO2020245368A1 (en) | 2019-06-05 | 2020-12-10 | Philip Morris Products S.A. | Dryer for herbaceous material with access heating |
| WO2020244901A1 (en) | 2019-06-05 | 2020-12-10 | Philip Morris Products S.A. | Dryer for herbaceous material having inclined vanes |
| WO2020245378A1 (en) | 2019-06-05 | 2020-12-10 | Philip Morris Products S.A. | Dryer for receiving herbaceous material with independently controlled heating subsystems |
| CN113853124A (en) * | 2019-06-05 | 2021-12-28 | 菲利普莫里斯生产公司 | Dryer for herbal material with channel-shaped collector |
| CN115226925A (en) * | 2022-07-18 | 2022-10-25 | 红云红河烟草(集团)有限责任公司 | Monitoring method for steam quality stability of sheet cut-tobacco drier, storage medium and application |
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