CN1210448A - Method and apparatus for low residence time redrying of tobacco - Google Patents
Method and apparatus for low residence time redrying of tobacco Download PDFInfo
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- CN1210448A CN1210448A CN97192038A CN97192038A CN1210448A CN 1210448 A CN1210448 A CN 1210448A CN 97192038 A CN97192038 A CN 97192038A CN 97192038 A CN97192038 A CN 97192038A CN 1210448 A CN1210448 A CN 1210448A
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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
- A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
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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
A method and apparatus is given for a low residence time redrying of strip tobacco. The apparatus thoroughly and evenly dries and cools the tobacco consistently through the entire tobacco bed as it passes through the dryer and cooler. The apparatus utilizes a plurality of individually controlled fluidized bed heating zones for drying the tobacco. An additional fluidized bed cooling zone is provided to cool the tobacco prior to reordering. A continuous conveyer extends through the heating zones and cooling zones. A steam tunnel is utilized to raise the moisture content of the dried tobacco to preselected moisture levels. A vibrating conveyer moves the tobacco through the steam tunnel.
Description
The present invention relates to the processing of tobacco fillet, more particularly, relate to the rapid draing of tobacco fillet in tobacco processing factory, cooling and rearrangement.
Before being used for cigarette and after using heavy case material, in the processing of tobacco-containing material, particularly in the processing of burley tobacco (burley of slaking), to carry out the dry again of smoke material usually.Because further processing need have strict requirement to the moisture content rate of tobacco leaf, so in the dry run again of smoke material, the control of the moisture content of tobacco is a target.The processing of tobacco-containing material comprises that drying carries out under being preferably at a high speed, so that processing cost is reduced, and make that the needed space of processing reaches minimum in manufactory, and each step of the processing of smoke material requires tobacco to keep a constant moisture content.In addition, be used for time of dry tobacco, chemical composition and the taste of the tobacco that the temperature and humidity influence is processed.Before drying, the tobacco fillet has about 30% moisture content usually.After drying, moisture content can be hanged down to 5%, and tobacco is highly brittle, and this may cause the fracture of tobacco leaf in the process of further processing.When the steam of tobacco leaf after the drying is approximately 5%, rupture especially easily.But, dried moisture content strictness must be controlled to desirable about 5% content for the chemical composition that makes tobacco leaf and subjective taste keep best.Must realize this strictness control with minimum as far as possible fracture and minimum as far as possible moisture content and the fluctuating of chemical composition to moisture content.Can improve this fracture by steam being added in the smoke material in the rearrangement operation, or the reduction of quality of tobacco.To the humidification again of tobacco leaf, or reset, it is about 15% that the moisture content of smoke material is brought up to, thereby make the tobacco leaf can be processed further, and not further infringement, and keep tobacco-containing material to have for further being processed as best moisture content.Usually adopt water, steam or the combination of the two combine with the rolling of tobacco in the cylinder of a rotation and to realize resetting.Yet this usually causes the other damage of tobacco product.Therefore, the drying of tobacco-containing material, cooling and rearrangement are very important.
Usually, use a kind of board-like drier to realize the drying of tobacco fillet.In board-like drier, put the following top blast air of conveyer thereon by tobacco, by the top of tobacco product dry air is discharged.In addition, some drier can comprise several arid regions, and air is blown into by tobacco-containing material and conveyer by the top of these arid regions, discharges by the bottom of drier.Usually in conveyer, adopt diffuser plate make air transversal pallet conveyor flow equably.The steam of such drier changes higher inherently, and therefore the tobacco of processing changes taste and quality easily therein.
Have, the speed that this drying of tobacco and rearrangement are carried out directly influences whole cost and the chemical composition of the tobacco of being processed again.Usually, the drying of tobacco before in cigarette manufacturing process, using, cooling and rearrangement spend 20 to 40 minutes time.The needed time of rapidoprint length be since in dry run the processing of tobacco be to make tobacco pass through tortuous air flow path, make tobacco rollably by air stream, or make the jet of tobacco by air.The air flow path of tobacco by complications causes the problem on the health, and the problem of obstruction, and the problem of other air flow path must often address these problems.Tobacco is also caused in the big change aspect tobacco bed dry by air-spray.Produce processing problems on these below inconsistent production lines, that is, some of tobacco section is maintained at suitable temperature, and some other section does not have.In addition, because tobacco is dried to different moisture contents, and can make the chemical composition difference of tobacco.Therefore, for suitably and dry equably tobacco-containing material, need a large amount of time.
Also have some problems also relevant with the rearrangement of tobacco.If the steam that is applied on the tobacco only applies in special position, will there be higher moisture content at some position of tobacco bed than other position, and this has changed the characteristics of tobacco.Therefore, requiring the dry of tobacco and being rearranged between two different samples does not have big difference, keeps process time for the shortest simultaneously.
Particularly, the generation of dry directly influence pyrazine in tobacco of tobacco-containing material.Speed and baking temperature that attempt changes dry run may influence the content of pyrazine in tobacco, thereby influence the essential aspect of machined material, such as taste and fragrance.Therefore, any change in dry run should not change the composition of tobacco, because this is relevant with other component with pyrazine.
The invention provides and be used for the tobacco fillet is carried out the dry again of low hold-up time, cooling and the method for resetting, simultaneously in process to the damage minimum of tobacco.The present invention has realized the equally distributed drying of whole bed and the humidification of transversal processed tobacco-containing material, only needs the limited time just to finish the drying of tobacco fully simultaneously, cooling and resetting.The present invention also provides a kind of a large amount of rapid draings and reset the device of tobacco of being used for, and these tobaccos of processing in the short time and in very little ground space also keep the processing of tobacco is destroyed to minimum simultaneously.
Method of the present invention requires very short process time simultaneously for adopting the low hold-up time drying of fluidization, and total holdup time is about 10% of needed drying time in the dry technology again that formerly has.In order to make tobacco-containing material dry again, on a belt conveyer, form a tobacco bed.This tobacco bed is by five arid regions, and each arid region is adopted by the top of tobacco and stayed the next dry tobacco of the heated air flow that blows the chamber by a pressure.In each arid region, heated air points to the upper surface of tobacco, and the tobacco that has also prevented fritter simultaneously is by this drier circulation.Tobacco is sent to a cooler subsequently, cools off heated tobacco with the surrounding air that blows on the tobacco-containing material downwards there, subsequently these tobacco-containing materials is sent to a rearrangement device, and it makes tobacco humidification to a suitable moisture content again.
Method of the present invention more specifically comprises the tobacco fillet is moved on on the bed conveyer with a predetermined bed degree of depth by a cargo hold.Tobacco makes temperature blow on the tobacco to the heated air between 280 degrees Fahrenheits (137.8 degrees centigrade) in 200 degrees Fahrenheits (93.3 degrees centigrade) in this drier by a drier.Tobacco drying is approximately 5% to moisture content.Adopt surrounding air that tobacco is cooled to about 80 degrees Fahrenheits (26.6 degrees centigrade) subsequently.The vibration conveyer of employing on an inclined-plane that makes progress makes tobacco pass through a steam channel, resets.In the outlet of steam channel (rearrangement device), the moisture content of tobacco is approximately 15%, and this is to be used to make the desired moisture content of cigarette.The whole holdup time of tobacco only is approximately two minutes in process.
At last, present invention resides in dry tobacco in the fluidized bed dryer of the heated air of a plurality of employings; The described tobacco of cooling in the fluidized bed cooler of an employing surrounding air; And, in a steam channel, described tobacco is reset, in order that improve the moisture content of described tobacco.
Because will better understanding be arranged to the present invention with reference to the following description that connects with accompanying drawing, identical label is represented identical parts in these accompanying drawings, has in the drawings:
Fig. 1 is the drying that is used for carrying out tobacco, an exemplary figure of the processing unit (plant) of cooling and rearrangement;
Fig. 2 is a calcspar, shows the drying of low hold-up time, cools off and resets desired processing;
Fig. 3 is the front view of a fluid bed, and it shows the air stream that points to processed tobacco;
Fig. 4 is the perspective view of a rearrangement device; And
Fig. 5 is illustrated in the dry run figure of the generation of pyrazine in tobacco.
In Fig. 1, schematically show the drying that is used for the tobacco fillet is carried out the low hold-up time of the present invention, a preferred embodiment of cooling and the device 10 reset.By a cargo hold (not shown) tobacco fillet 12 is delivered on the continuous conveyer belt 14.Tobacco 12 is placed to along the cross section of whole belt 14 to be had on the belt 14 of about 3 inches constant width.Belt 14 makes tobacco pass through each drying/heating region of drier 38, and described zone is marked as zone 1, zone 2, and zone 3, zone 4 and zone 5, they are expressed as 22,24,26,28 and 30 respectively.Drier 38 is made of the heating region of the independent control that separates, thereby can accurately process tobacco, and can control drying subtly.Can control each zone independently, described control comprises temperature, stays the control of chamber pressure and exhaust flow velocity.The dry tobacco 12 of known fluidization is adopted in each zone of dry run, the jet area fluid-bed unit that a kind of such drier is made for Wolverine company.Zone each in 22,24,26,28 and 30 is independently controlled, and each zone has and independently adds hot air inlet and outlet, as shown in fig. 1.After drying, tobacco 12 enters cooler 32, and cooler also adopts fluidization, and such as previously described jet area fluid-bed unit, difference is not adopt heated air in the porch.Adopt surrounding air to make tobacco 12 coolings,, the temperature of tobacco 12 is reduced in order suitably to reset.Tobacco 12 by continuous belt 14 from this cooler 32 to steam/water bed 36, this bench grafting is subjected to the equally distributed tobacco that is dried and cools off 12, the damage of processing reaches minimum.Steam/water bed 36 provides the landing zone of a band mat that is produced by steam/water bed 36, moves downward before this regional tobacco 12 is beginning by the process of resetting device 34.In resetting device 34, the bench grafting of dry tobacco 12 contacts steam, in order that make the moisture content of tobacco 12 bring up to about 15% proper level.Employing has the vibration conveyer of the angle that is inclined upwardly a little to make tobacco 12 by resetting the steam channel 40 of device 34.This make be dried and again the tobacco 12 of humidification can not have mechanical treatment ground by resetting device 34, and mechanical treatment may cause the damage of the tobacco-containing material 12 of drying.
As mentioned above, drier 38 by five independently arid region 22,24,26,28 and 30 constitute, continuous belt conveyer 14 is by these zones.Belt conveyer 14 is dark and seven feet (213.3 centimetres) wide transmission tobacco 12 with about three inches (7.62 centimetres).Conveyer 14 is single conveyer, and it is by each arid region, and cooled region, reaches minimum in order that make to handle to damage.
Tobacco 12 enters drier 38 by a cargo hold with about 30% moisture content, as shown in FIG. 2.Force heated air 50 to enter each arid region, enter a pressure and stay chamber 52 with following pressure and temperature, as shown in FIG. 3:
| The zone | Air themperature | Stay chamber pressure |
| Heating region 1 | 200 degrees Fahrenheits (93.3 degrees centigrade) are to 280 degrees Fahrenheits (137.8 degrees centigrade), best, 220 degrees Fahrenheits (104.4 degrees centigrade) | 2.5 inch (6.35 centimetres) water column |
| Heating region 2 | 200 degrees Fahrenheits (93.3 degrees centigrade) are to 280 degrees Fahrenheits (137.8 degrees centigrade), and are best, 220 degrees Fahrenheits (104.4 degrees centigrade) | 2.0 inch (5.08 centimetres) water |
| Heating region | ||
| 3 | 200 degrees Fahrenheits (93.3 degrees centigrade) are to 280 degrees Fahrenheits (137.8 degrees centigrade), and are best, 220 degrees Fahrenheits (104.4 degrees centigrade) | 1.5 inch (3.81 centimetres) water column |
| Heating region 4 | 200 degrees Fahrenheits (93.3 degrees centigrade) are to 280 degrees Fahrenheits (137.8 degrees centigrade), and are best, 220 degrees Fahrenheits (104.4 degrees centigrade) | 1.0 inch (2.54 centimetres) water column |
| Heating region 5 | 200 degrees Fahrenheits (93.3 degrees centigrade) are to 280 degrees Fahrenheits (137.8 degrees centigrade), and are best, 220 degrees Fahrenheits (104.4 degrees centigrade) | 0.5 inch (1.27 centimetres) water column |
| But cool region 1 | 65 degrees Fahrenheits (18.3 degrees centigrade) are to 85 degrees Fahrenheits (21.4 degrees centigrade), and are best, 75 degrees Fahrenheits (23.8 degrees centigrade) | 0.5 inch (1.27 centimetres) water column |
Force heated air 50 by a plurality of jet pipes 54 subsequently, and be sprayed onto on the tobacco 12 with the speed between 1000 to 3000 feet of the per minutes (304.8 meters to 914.4 meters).The jet pipe 54 that is communicated with in chamber 52 with described pressure is a hollow, and about 12 inches (30.48 centimetres) are long.The temperature of staying the heated air 50 in the chamber 52 at the pressure in the zone 1 of drier 22 be 200 degrees Fahrenheits (93.3 degrees centigrade) to about 280 degrees Fahrenheits (137.8 degrees centigrade), be preferably about 220 degrees Fahrenheits (104.4 degrees centigrade).As mentioned above, each zone of drier 38 is independently controlled, and what it was arranged adds hot air inlet and outlet, as shown in FIG. 1.
As shown in FIG. 3, arid region 22,24,26,28 and 30 have a plurality of jet pipes 54, and these jet pipes are stayed chamber 52 fluids with pressure and are communicated with.Jet pipe 54 forces heated air to flow on the tobacco bed 12 downwards, to the disturbance minimum of tobacco 12, but still can make the tobacco on the whole tobacco bed dry equably, and prevent that the content of steam on the degree of depth of whole bed from having deviation.Because the generation of pyrazine, the cause of removing and improve the processability of tobacco leaf of strong volatile materials requires accurately dry tobacco-containing material.Because the cause of the drying of the housing of the weight that carried out before this process must watch like a hawk the drying of tobacco-containing material, this is because unsuitable drying may make the housing hardening, and tobacco leaf is become fragile.
As shown in FIG. 3, the air 50 that is compelled to by jet pipe 54 is returned upwards cycles through each arid region 22,24,26,28 and 30, and by backward channel 58 and 59 by cooled region 32.In order to make the tobacco-containing material 12 that is dried can not enter the discharge return line 58 and 59 of each drier, require each regional balance is entered fan and discharges fan.Stay in the chamber 52 by supplying heated air 50 at pressure from the heated air of many jet pipes 54.Forced air 50 is to flow on the mobile tobacco bed 12 at a high speed.Air 50 upwards returns in the both sides of the exhaust outlet shown in Fig. 3 58 and 59, in order that go back by the circulation of arid region independently.In arid region or cooled region, make air circulation, produce the system of a closure, can be easily by adjusting supply fan and this closed-system of scavenger fan balance.Require tobacco bed 12 that the very short holdup time is arranged in drier 38, in order that material suitably is dried to desired level, usually in about 60 seconds.
Because the result of dry run produces pyrazine in tobacco.The quantity of the pyrazine that is produced is directly relevant with the temperature of Tobacco drying and total drying time.The formation of pyrazine influences the taste of smoking material and to the substantial requirement of smoking material in tobacco.As a result, must strictly analyze the drying of tobacco, guarantee that the chemical composition of pyrazine in tobacco is remained unchanged to another time processing by time processing.Fig. 5 shows the figure that adopts different baking temperature pyrazines to form.38 pairs of tobaccos of drier 12 of adopting air themperature to be approximately 248 degrees Fahrenheits (120 degrees centigrade) carry out drying to make the total content of pyrazine that very little difference be arranged or not to have difference.The change of total drying time also influences the formation of pyrazine, must be controlled in addition.Even drying time by reduce to 90 seconds more than a few minutes, with method of the present invention the formation of pyrazine is remained unchanged well, simultaneously carry out drying being approximately under 248 degrees Fahrenheits (120 degrees centigrade).Like this, adopt as process as described herein and device and can reduce total drying time, still realize equably tobacco being dried to about 5% moisture content simultaneously again.After passing through drier 38, the moisture content of tobacco is approximately 5%.Because the moisture content of tobacco is so low, tobacco damages easily and ruptures, and minimizes so must make to handle.In addition, use before the tobacco 12 in cigarette is produced, must make tobacco humidification again, this is because the moisture content of desired tobacco is approximately 15% in last tobacco product.In order to realize this task, must make tobacco pass through cooler 32, cooler adopts identical jet pipe 54 as shown in FIG. 3.Yet the air 52 that uses in cooler 32 is in environment temperature, is approximately 75 degrees Fahrenheits (23.8 degrees centigrade), and the tobacco in the tobacco bed 12 is cooled to about 80 degrees Fahrenheits (26.6 degrees centigrade).The total holdup time of tobacco 12 in cooler 32 is approximately 15 seconds, and requires a processing length with about 20 feet (6.1 meters) that tobacco is reduced to suitable temperature.
It is to bring up to proper level for the moisture content tobacco that tobacco enters the rearrangement stage, is brought up to about 15% moisture content by 5% moisture content.In order to make tobacco enter the steam channel 40 of resetting device 34, be provided with transfer steam bed 36 by conveyer 14.Transfer station 36 is a steam/water bed, the tobacco that it enters steam channel 40 by conveyer 14 acceptance.Difference in height between conveyer 14 and transfer station 36 is approximately 42 inches (106.7 centimetres).At the beginning position of resetting device 34, independently be provided with a steam cushion or water cushion below the pressure source at one, for the tobacco-containing material 12 that descends adds mat, provide the initial highdensity wet zone that adds, guarantee that also the damage of product is minimum simultaneously.Zone/the steam cushion 34 of this decline is positioned at the porch of steam channel 40.Vapour source or water source are such as previously described, at one independently below the current collector, and can be controlled independently by steam channel 40.Reset the vibration transfer system of device 34 and tobacco is taken over, and make tobacco-containing material 12 gradient that makes progress a little of upwards advancing, by steam channel 40 at this position.Steam channel 40 shown in Figure 4 is by bed 64, sidewall 64 and 66 and a plurality of sprayer 62 constitute, these sprayers form in bed 60 and wall 64,66, directly are communicated with a vapour source.Can adopt a steam channel, such as a steam channel processing unit of making by COMAS.Keep to reset the angles of device 34, and adopt the vibration conveyer to make and still move for about 3 inches (7.62 centimetres) dark tobacco beds for about 2.5 degree that make progress, move on to beds 60 below.The a plurality of sprayers 62 that adopt in steam channel 40 provide the mist of steam, in order that improve the steam of tobacco bed equably, and do not have big deviation at any sampling position.Steam channel 40 is approximately 20 feet long, and 7 feet wide, with the width coupling of drier 38 and cooler 32.The total holdup time of tobacco 12 in resetting device has only about 15 seconds.When the moisture content of tobacco 12 when resetting device 34 and go out is whole is 15% equably.
The device 10 of the preferred embodiments of the present invention, drier, the total length of cooler and rearrangement device is that about 120 feet (36.6 meters) and 7 feet (2.13 meters) are wide.The disposal ability of method and apparatus of the present invention be approximately reset 14000 pounds of the outlets (6350.4 kilograms) of device/hour.Tobacco is at drier, and cooler and the total holdup time of resetting in the device are approximately 90 seconds.Compare with the rearrangement device with the drier of prior art, this is tangible improvement, total holdup time that the prior art matching requirements is about 20 minutes, and account for length more than 200 feet (60.96 meters), reset the device export capacity be approximately 10000 pounds (4356 kilograms)/hour.
It mainly is clear for what understand providing top detailed description, and can not think that by these contents any inevitable restriction is arranged, because change after running through presents for persons skilled in the art will be significantly, and can make a change and do not depart from the scope of spirit of the present invention or appended claim.
Claims (28)
1. method that is used for processing tobacco comprises:
Dry tobacco in the fluidized bed dryer of the heated air of a plurality of employings;
The described tobacco of cooling in the fluidized bed cooler of an employing surrounding air;
In a steam channel, reset described tobacco, in order that improve the moisture content of described tobacco.
2. according to the method for the described processing of claim 1 tobacco, it is characterized in that the described drying of described tobacco also comprises:
Make described tobacco by the first class bed dryer;
Guiding at the air of first predetermined temperature to described tobacco;
Make described tobacco by a plurality of fluidized bed dryers;
Guiding at the air of second predetermined temperature to described tobacco.
3. according to the method for the described processing of claim 2 tobacco, it is characterized in that, in the scope of described first predetermined temperature between 200 degrees Fahrenheits (93.3 degrees centigrade) and 280 degrees Fahrenheits (137.8 degrees centigrade).
4. according to the method for the described processing of claim 2 tobacco, it is characterized in that, in the scope of described second predetermined temperature between 200 degrees Fahrenheits (93.3 degrees centigrade) and 280 degrees Fahrenheits (137.8 degrees centigrade).
5. according to the method for the described processing of claim 1 tobacco, it is characterized in that described drying and the described cooling of described tobacco also comprise:
On a continuous feed belt, make described tobacco by described drier and described cooler;
Guiding compressed air is downwards towards described tobacco; And
Described compressed air is circulated in described drier and described cooler.
6. according to the method for the described processing of claim 1 tobacco, it is characterized in that described drying is approximately 5% to described Tobacco drying to moisture content.
7. according to the method for the described processing of claim 1 tobacco, it is characterized in that the described drying of described tobacco is brought up to about 244 degrees Fahrenheits (115.56 degrees centigrade) to the temperature of described tobacco.
8. in accordance with the method for claim 7, it is characterized in that the described cooling of described tobacco also comprises described tobacco is cooled to about 80 degrees Fahrenheits (26.6 degrees centigrade).
9. in accordance with the method for claim 1, it is characterized in that the described rearrangement of described tobacco also comprises:
On a steam bed, accept described tobacco by described cooler;
Adopt a vibration conveyer that described tobacco is transmitted by described steam channel; And
In described steam channel, described tobacco is exposed to high steam.
10. according to the method for the described processing of claim 1 tobacco, it is characterized in that the described rearrangement of described tobacco brings up to about 15% to the moisture content of described tobacco.
11. one kind is used for tobacco is carried out rapid draing, the cooling and the method for rearrangement fast fast comprise:
Described tobacco is contained on the continuous feed belt with a predetermined bed degree of depth;
On described feed belt, transmit described tobacco by a drier that adopts the fluid bed of heated air;
On described feed belt, transmit described tobacco by a cooler that adopts the fluid bed of surrounding air;
Described tobacco is transferred to a steam channel of vibration conveyer; And
In described steam channel, described tobacco is reset.
12. in accordance with the method for claim 11, it is characterized in that the described predetermined bed degree of depth of described tobacco is about three inches.
13. in accordance with the method for claim 11, it is characterized in that, with about 1.3 feet (39.6 centimetres)/second speed transmit described tobacco by described drier and described cooler.
14. in accordance with the method for claim 11, it is characterized in that the described transmission of described tobacco also comprises by described drier:
Guiding is heated to the air of first predetermined temperature in first heating region;
Described air is circulated in described first heating region;
Guiding is heated to the air of second predetermined temperature in the heating region in a plurality of downstreams at first heating region;
Described air is circulated in the heating region of described a plurality of downstreams;
The moisture content of described tobacco is reduced to about 5%; And
The temperature of described tobacco brought up to be approximately 240 degrees Fahrenheits (115.56 degrees centigrade).
15. in accordance with the method for claim 14, it is characterized in that described first predetermined temperature is about 220 degrees Fahrenheits (104.4 degrees centigrade).
16. in accordance with the method for claim 14, it is characterized in that described second predetermined temperature is about 240 degrees Fahrenheits (115.56 degrees centigrade).
17. in accordance with the method for claim 14, it is characterized in that the described air in described first heating region and described a plurality of downstreams heating region is comprised in the system of a sealing.
18. in accordance with the method for claim 11, it is characterized in that the described cooling of described tobacco also comprises:
Guiding surrounding air is to described tobacco;
Described compressed air is circulated in described cooler; And
The temperature of described tobacco is reduced to about 80 degrees Fahrenheits (26.6 degrees centigrade).
19. in accordance with the method for claim 11, it is characterized in that the described rearrangement of described tobacco also comprises:
Adopt a vibration conveyer that described tobacco is transmitted by described steam channel;
By multiple source steam is injected described steam channel; And
The moisture content of described tobacco is brought up to about 15%.
20. one kind is used for tobacco is carried out rapid draing, the cooling and the device of rearrangement fast fast comprise:
The tobacco dryers of a plurality of heating regions of independently being controlled;
A cooled region the tobacco cooler;
A continuous feed belt by described tobacco dryers and the stretching, extension of described tobacco cooler;
A steam bed transport zone in the end of described continuous conveyer;
The rearrangement device that a steam channel is arranged in its whole formation; And
A vibration conveyer that connects described steam bed transport zone and stretch by described rearrangement device.
21., it is characterized in that described vibration conveyer forms an acclivitous surface of about 2.5 degree according to the described device of claim 20.
22., it is characterized in that described drier also comprises a fluid bed according to the described device of claim 20.
23., it is characterized in that described drier also comprises according to the described device of claim 20:
First heating region, it makes described tobacco be subjected to being heated to the effect of the pressure-air of about 220 degrees Fahrenheits (104.4 degrees centigrade);
Second heating region, it makes described tobacco be subjected to being heated to the effect of the pressure-air of about 240 degrees Fahrenheits (115.56 degrees centigrade);
The 3rd heating region, it makes described tobacco be subjected to being heated to the effect of the pressure-air of about 240 degrees Fahrenheits (115.56 degrees centigrade);
The 4th heating region, it makes described tobacco be subjected to being heated to the effect of the pressure-air of about 240 degrees Fahrenheits (115.56 degrees centigrade);
The slender acanthopanax thermal region, it makes described tobacco be subjected to being heated to the effect of the pressure-air of about 240 degrees Fahrenheits (115.56 degrees centigrade).
24., it is characterized in that each described heating region comprises the device of the described pressure-air that circulates according to the described device of claim 23.
25., it is characterized in that described cooler also comprises a cooled region according to the described device of claim 20, this zone comprises the device that makes described tobacco be subjected to the effect of high pressure surrounding air.
26., it is characterized in that described continuous conveyer moves with the speed of about 1.5 feet (39.6 centimetres)/second according to the described device of claim 20.
27., it is characterized in that described rearrangement device also comprises according to the described device of claim 20:
The basal surface of a transmission;
First and second sidewalls; And
With a plurality of sprayers that a vapour source fluid is communicated with, described a plurality of sprayers form on the basal surface of described transmission and described first and second sidewalls.
28., it is characterized in that described vibration conveyer moves described tobacco with the speed of about 1.5 feet (39.6 centimetres)/second according to the described device of claim 20.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1108496P | 1996-02-02 | 1996-02-02 | |
| US60/011,084 | 1996-02-02 | ||
| US08/732,928 | 1996-10-17 | ||
| US08/732,928 US5755238A (en) | 1996-10-17 | 1996-10-17 | Method and apparatus for low residence time redrying of tobacco |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1210448A true CN1210448A (en) | 1999-03-10 |
| CN1073836C CN1073836C (en) | 2001-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97192038A Expired - Fee Related CN1073836C (en) | 1996-02-02 | 1997-01-27 | Method and apparatus for low residence time redrying of tobacco |
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| Country | Link |
|---|---|
| EP (1) | EP0959698B1 (en) |
| JP (2) | JP3441079B2 (en) |
| CN (1) | CN1073836C (en) |
| AR (1) | AR005625A1 (en) |
| AT (1) | ATE228781T1 (en) |
| AU (1) | AU704974B2 (en) |
| BR (1) | BR9707482A (en) |
| CA (1) | CA2246050C (en) |
| CO (1) | CO4750778A1 (en) |
| DE (1) | DE69717675T2 (en) |
| ID (1) | ID19597A (en) |
| MA (1) | MA26142A1 (en) |
| MY (1) | MY113556A (en) |
| TR (1) | TR199801499T2 (en) |
| UA (1) | UA44351C2 (en) |
| WO (1) | WO1997027766A1 (en) |
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| CN101647599B (en) * | 2009-08-24 | 2011-12-21 | 中国烟草总公司郑州烟草研究院 | Flatbed electromagnetic heating tobacco drier |
| CN101697837B (en) * | 2009-11-25 | 2012-08-15 | 中国烟草总公司郑州烟草研究院 | Smoked sheet low intensity loosing conditioning process technology and equipment |
| CN103005663A (en) * | 2012-12-21 | 2013-04-03 | 安徽中烟工业有限责任公司 | Processing method of high-grade tobacco expansion shreds |
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| BR112021004940A2 (en) * | 2018-09-17 | 2021-06-01 | Comas - Costruzioni Macchine Speciali - S.P.A. | method and plant for the production of reconstituted tobacco |
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- 1997-01-27 CN CN97192038A patent/CN1073836C/en not_active Expired - Fee Related
- 1997-01-27 AU AU22457/97A patent/AU704974B2/en not_active Ceased
- 1997-01-27 TR TR1998/01499T patent/TR199801499T2/en unknown
- 1997-01-27 UA UA98094672A patent/UA44351C2/en unknown
- 1997-01-27 AT AT97905615T patent/ATE228781T1/en not_active IP Right Cessation
- 1997-01-27 EP EP97905615A patent/EP0959698B1/en not_active Expired - Lifetime
- 1997-01-27 BR BR9707482A patent/BR9707482A/en not_active IP Right Cessation
- 1997-01-27 WO PCT/US1997/001157 patent/WO1997027766A1/en active IP Right Grant
- 1997-01-27 JP JP52772997A patent/JP3441079B2/en not_active Expired - Fee Related
- 1997-01-27 DE DE69717675T patent/DE69717675T2/en not_active Expired - Lifetime
- 1997-01-27 CA CA002246050A patent/CA2246050C/en not_active Expired - Fee Related
- 1997-01-30 MY MYPI97000357A patent/MY113556A/en unknown
- 1997-01-30 AR ARP970100390A patent/AR005625A1/en unknown
- 1997-01-31 CO CO97004750A patent/CO4750778A1/en unknown
- 1997-01-31 ID IDP970313A patent/ID19597A/en unknown
- 1997-02-03 MA MA24482A patent/MA26142A1/en unknown
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2003
- 2003-04-09 JP JP2003104759A patent/JP3807551B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101647599B (en) * | 2009-08-24 | 2011-12-21 | 中国烟草总公司郑州烟草研究院 | Flatbed electromagnetic heating tobacco drier |
| CN101697837B (en) * | 2009-11-25 | 2012-08-15 | 中国烟草总公司郑州烟草研究院 | Smoked sheet low intensity loosing conditioning process technology and equipment |
| CN103005663A (en) * | 2012-12-21 | 2013-04-03 | 安徽中烟工业有限责任公司 | Processing method of high-grade tobacco expansion shreds |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69717675D1 (en) | 2003-01-16 |
| AU2245797A (en) | 1997-08-22 |
| EP0959698B1 (en) | 2002-12-04 |
| AR005625A1 (en) | 1999-06-23 |
| UA44351C2 (en) | 2002-02-15 |
| JP2002502231A (en) | 2002-01-22 |
| CA2246050A1 (en) | 1997-08-07 |
| WO1997027766A1 (en) | 1997-08-07 |
| EP0959698A1 (en) | 1999-12-01 |
| BR9707482A (en) | 1999-04-06 |
| JP3441079B2 (en) | 2003-08-25 |
| JP2003299473A (en) | 2003-10-21 |
| CA2246050C (en) | 2003-07-15 |
| MY113556A (en) | 2002-03-30 |
| CO4750778A1 (en) | 1999-03-31 |
| AU704974B2 (en) | 1999-05-13 |
| DE69717675T2 (en) | 2003-09-18 |
| TR199801499T2 (en) | 1998-11-23 |
| ID19597A (en) | 1998-07-23 |
| CN1073836C (en) | 2001-10-31 |
| ATE228781T1 (en) | 2002-12-15 |
| JP3807551B2 (en) | 2006-08-09 |
| MA26142A1 (en) | 2004-07-01 |
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