CN107280064A - A kind of method and device of microwave tobacco expanding - Google Patents
A kind of method and device of microwave tobacco expanding Download PDFInfo
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- CN107280064A CN107280064A CN201710487788.7A CN201710487788A CN107280064A CN 107280064 A CN107280064 A CN 107280064A CN 201710487788 A CN201710487788 A CN 201710487788A CN 107280064 A CN107280064 A CN 107280064A
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- microwave
- pipe tobacco
- tobacco
- expansion
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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
- A24B3/18—Other treatment of leaves, e.g. puffing, crimpling, cleaning
- A24B3/182—Puffing
- A24B3/185—Puffing by impregnating with a liquid and subsequently freezing and evaporating this liquid
Abstract
The invention discloses a kind of method and device of microwave tobacco expanding, methods described comprises the steps：S1, pipe tobacco humidification：Prepare the pipe tobacco of moisture content 20%~30%.S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is more than or equal to 100kW/m2, Bulking Time 9 seconds~18 seconds；S3, pipe tobacco sizing：Shaped using the natural type of cooling；S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11% 13%.Described device includes conveyer belt, microwave cavity, microwave source feedback mouth；The microwave source feedback mouth is multiple, is distributed on the different inwalls of the microwave cavity；The conveyer belt is used to transmit the pipe tobacco, and through the microwave cavity.The present invention is using high power density and the microwave that is evenly distributed to pipe tobacco progress fast dewatering, so that moisture instant vaporization within the extremely short time of the aqueous pipe tobacco by microwave cavity, so as to reach the motive force needed for promotion pipe tobacco cell expansion, the expansion rate of pipe tobacco is improved.
Description
Technical field
The invention belongs to pipe tobacco production technical field, specifically, it is related to a kind of method and device of microwave tobacco expanding.
Background technology
It is that can improve cigarette quality at present in production of cigarettes manufacturing process, most of producer uses tobacco expanding skill
Art.Pipe tobacco filling capacity after expansion process is significantly improved, and is contained so as to the tar and nicotine that reduce in cigarette smoke
Amount, makes cigarette burning more uniform, improves sucking quality.
Tobacco expanding mainly includes off-line type expansion and online two kinds of expansion.
In existing off-line type tobacco expanding technology, comparative maturity and popularization are carbon dioxide tobacco expanding technology, fluorine
Lyons tobacco expanding technology, nitrogen tobacco expanding technology.Wherein again with the most commonly used of carbon dioxide tobacco expanding technology.
Analyzed from technical principle, off-line type tobacco expanding general principle is exactly that pipe tobacco is solvent impregnated with some, makes Tissues of Tobacco thin
Intracellular is full of solvent, then, and the solvent inside tobacco cell is removed rapidly, and produced promotion is outwards evaporated by solvent
Power so that Tissues of Tobacco is expanded.The selected general low boiling point of tobacco expanding medium, the latent heat of vaporization are smaller, relatively low
Under thermodynamic activity, you can produce larger motive force.But it is due to co 2 liquefaction temperature and its shape under field conditions (factors)
State, result in the high cost of its complex process.Though filling capacity is good, carbon dioxide expanded technological attrition is big, equipment repair and
Maintenance cost is high；The shortcomings of aroma of tobacco shreds loses larger, withered and burnt smell weight, flue gas drying, high filament broken rate forces that it is desirable to it
Carry out technology innovation.
Online expanding method, be whole pipe tobaccos by cigarettes plus after heating and moistening is handled, be immediately fed into baking silk
Machine is quickly dried, Chinese patent CN1653968A, 2005 publication dates August 17 days, discloses one kind《Using water as medium
Tobacco expanding process》, it is, using water as medium and using hot blast expansion, to be given birth to using water as medium during tobacco expanding
Production cost and equipment investment will be substantially reduced, but the shortcoming using water as medium is that speed of expansion is slow, low production efficiency, and be made
It is also easy to cause pipe tobacco percentage of damage high with hot blast expansion.
Therefore, although the tobacco expanding rate of off-line type expanding method is high, but its complex process, operating cost is high, and cigarette
Fragrance loss is larger for silk, withered and burnt smell weight, flue gas drying, high filament broken rate the shortcomings of also result in the puzzlement of people.And it is traditional
Although wire type expanding method solves the shortcoming of above-mentioned off-line type expansion, but because water boiling point is higher, the latent heat of vaporization is big, using general
Logical heating technique, it is difficult to which so that moisture fast vaporizing, produces and be enough to promote the motive force of tobacco expanding, cause online pipe tobacco
The expansion rate of expansion is very low.
Microwave tobacco expanding technology has the features such as production efficiency is high, cost is low, quality is good, is just to develop recent years
The new technology come.Such as October 11 2006 Chinese patent CN1843232A publication date, disclose《One kind makes cabo particle
Technique》, the technique is mainly using Microwave expansion tobacco stem, but due to the wood characteristics of offal, so in tobacco expanding process
It can directly be heated with microwave and not need thermal finalization, offal can still be remained inflated for, but the technique is not suitable for
Expanded cut tobacco because pipe tobacco is relatively thin, directly using microwave heating expansion be easily caused pipe tobacco hot-spot and coking, carbonization or
The decomposition of chemical substance.So need to use solvent medium to soak in advance during microwave expansion of cut tobacco is used, such as China
Patent January 6 2010 CN 101617855A publication date, disclose《A kind of method of continuous microwave expansion of cut tobacco》, the party
Method is exactly to shift to an earlier date tobacco shred immersion using special organic solvent and then reuse microwave expansion, although this method can be obtained finally
The expanded cut tobacco of quality satisfaction, but due to having used organic solvent dipping, so with production cost is high, efficiency is low, not environmentally
The shortcomings of.It is December 22 2010 Chinese patent CN101919582A publication date, public in order to avoid being impregnated using solvent medium
Open《Low-temperature microwave expansion process of cut tobacco》, can the process employs before inflation by the method that pipe tobacco gets damp again and freezes
In the quality without using pipe tobacco after ensureing expansion in the case of solvent impregnated, but the processing disadvantages are that general cooling time is long,
Cost is high, low production efficiency.
Needed because the physics and chemical property of pipe tobacco itself are determined before microwave expansion of cut tobacco using dipping, freezing
Deng pretreatment process, and be exactly these pretreatment process and microwave heating uneven feature all govern microwave expansion of cut tobacco skill
The development of art.
In view of this it is special to propose the present invention
The content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art that there is provided a kind of side of microwave tobacco expanding
Method and device, using high power density and the microwave that is evenly distributed carries out fast dewatering to pipe tobacco so that pass through microwave cavity
Aqueous pipe tobacco moisture instant vaporization within the extremely short time so that reach promote pipe tobacco cell expansion needed for motive force,
Improve the expansion rate of pipe tobacco.
In order to realize the purpose, the present invention is adopted the following technical scheme that：
A kind of method of microwave tobacco expanding, comprises the steps：S1, pipe tobacco humidification：Prepare moisture content 20%~30%
Pipe tobacco；S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is more than or equal to
100kW/m2, Bulking Time 9 seconds~18 seconds；S3, pipe tobacco sizing, are shaped using the natural type of cooling, and after pipe tobacco sizing, pipe tobacco contains
Water rate is not less than 5%；Shaped using the natural type of cooling；S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%-13%.
Further, in step s 2, Microwave Power Density is 100kW/m2~200kW/m2；It is preferred that Microwave Power Density
For 120kW/m2~180kW/m2；Further preferred Microwave Power Density is 150kW/m2。
Further, in step s 2, the microwave equipment is using the feedback mouth design of many microwaves, and the microwave has between presenting mouth
There is space angle, pipe tobacco is heated by non-interference multi-resonant high density electromagnetic field.
Further, in step s 2, the pipe tobacco is carried out described micro- by the transmission of conveyer belt in microwave resonance intracavitary
Ripple expands；
Preferably, the transfer rate of the conveyer belt is 2-4m/min.
Further, in step s 2, pavement thickness of the pipe tobacco on the conveyer belt is no more than 40mm；
Preferably, pavement thickness of the pipe tobacco on the conveyer belt is 20-40mm.
Further, after step S4, tobacco expanding rate is 20%~30%, and tobacco fill value is for 5.0cm3/ g~
6.0cm3/g。
A kind of device of microwave tobacco expanding using any of the above-described methods described, it is swollen for carrying out microwave heating to pipe tobacco
Swollen, described device includes conveyer belt, microwave cavity, microwave source feedback mouth；The microwave source feedback mouth is multiple, is distributed in described micro-
On the different inwalls of wave resonance chamber；The conveyer belt is used to transmit the pipe tobacco, and through the microwave cavity.
Further, roof microwave source feedback mouth, and side inner walls are provided with the top surface inwall of the microwave cavity
On be provided with side wall microwave source feedback mouth；
Preferably, the side wall microwave source feedback mouth is arranged in the relative side inner walls of the microwave cavity.
Further, there is space angle between the side wall microwave source feedback mouth in relative side inner walls；
Preferably, the space angle is 90 degree.
Further, the microwave cavity is provided with microwave source, and the microwave source quantity is multiple, by respective micro-
Wave source presents mouth and launches microwave, the microwave frequency 2450MHz of the microwave source, the microwave work(of single microwave source to microwave resonance intracavitary
Rate is more than 15KW；The microwave source general power of the microwave cavity is more than 45KW, and the power density of microwave resonance intracavitary microwave
More than or equal to 100kW/m2。
After adopting the above technical scheme, the present invention has the advantages that compared with prior art.
The present invention not only make use of microwave to accelerate the speed of moisture vaporization, together using the principle of online water expanded cut tobacco
When by the improvement to the water expanded cut tobacco device, uniform microwave can be provided for microwave cavity, microwave distribution is equal
The even use for High-Power Microwave provides the foundation, so as to avoid the local heating often occurred during conventional microwave expansion
The situation that pipe tobacco is charred excessively is caused, while this uniform high density microwave significantly reduces the time of moisture vaporization, is made
The moisture instant vaporization of aqueous pipe tobacco, has promoted the motive force needed for pipe tobacco cell expansion, so that pipe tobacco curling expansion is driven, and
Common online expanded cut tobacco equipment is compared, and has reached higher expansion rate.
The present invention need not carry out the specially treateds such as solvent impregnated or freezing before using microwave expansion of cut tobacco to pipe tobacco,
Reduce production cost, improve efficiency, i.e. energy-conservation environmental protection again；Other pipe tobacco active ingredient during processing will not be lost in
Or destruction, it is ensured that the quality of pipe tobacco.
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Accompanying drawing is as the part of the present invention, and for providing further understanding of the invention, of the invention is schematic
Embodiment and its illustrate to be used to explain the present invention, but do not constitute inappropriate limitation of the present invention.Obviously, drawings in the following description
Only some embodiments, to those skilled in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is a kind of device overall schematic of microwave tobacco expanding of the present invention；
Fig. 2 is a kind of front view of the microwave cavity of the device of microwave tobacco expanding of the present invention；
Fig. 3 is a kind of top view of the microwave cavity of the device of microwave tobacco expanding of the present invention.
In figure：1st, microwave cavity；2nd, top feedback microwave source feedback mouth；3rd, the first side feedback microwave source feedback mouth；4th, the feedback of the second side is micro-
Wave source presents mouth；5th, suppressor；6th, conveyer belt.
It should be noted that these accompanying drawings and word description are not intended as the design model for limiting the present invention in any way
Enclose, but be that those skilled in the art illustrate idea of the invention by reference to specific embodiment.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in embodiment is clearly and completely described, following examples be used for illustrate the present invention, but
It is not limited to the scope of the present invention.
It is term " on ", " under ", "front", "rear", "left", "right", " perpendicular in the description of the invention, it is necessary to explanation
Directly ", the orientation or position relationship of the instruction such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, merely to just
In the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As shown in Figure 1 to Figure 3, the invention discloses a kind of method and device of microwave tobacco expanding, methods described, including
Following step：S1, pipe tobacco humidification：Prepare the pipe tobacco of moisture content 20%~30%.S2, microwave expansion：Expanded in microwave equipment
Pipe tobacco, microwave frequency 2450MHz, Microwave Power Density is more than or equal to 100kW/m2, Bulking Time 9 seconds~18 seconds；S3, pipe tobacco are fixed
Type：Shaped, shaped using the natural type of cooling using the natural type of cooling, after pipe tobacco sizing, moisture content of cut tobaccos is not less than 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%-13%.Described device includes conveyer belt 6, microwave cavity 1, microwave source
Present mouth；The microwave source feedback mouth is multiple, is distributed on the different inwalls of the microwave cavity；The conveyer belt 6 is used to pass
The pipe tobacco is sent, and through the microwave cavity.The microwave that the present invention utilizes high power density and is evenly distributed enters to pipe tobacco
Row fast dewatering so that moisture instant vaporization within the extremely short time of the aqueous pipe tobacco Jing Guo microwave cavity, so as to reach
The motive force needed for pipe tobacco cell expansion is promoted, the expansion rate of pipe tobacco is improved.
Embodiment 1
A kind of method of microwave tobacco expanding is disclosed in the present embodiment, for the ease of understanding the present invention, with reference to whole cigarette
Filament processing process is illustrated to microwave tobacco thred expansion method of the present invention.Pipe tobacco processing in the prior art includes following steps
Suddenly (as described in Chinese patent CN1653968A)：1. get the raw materials ready, 2. sections, 3. surpass back loose, 4. storage leaves, 5. choppings, 6. store silks,
7. cut tobacco humidification, the expansion of 8. warming and humidifyings, 9. hot blasts, 10. coolings, 11. cut tobaccos humidification, 12. selection by winnowing, 13. storage silks.
Pipe tobacco processing method is the pipe tobacco in the improvement done on the basis of existing technology, the present embodiment in the present embodiment
Processing method comprises the steps：1. get the raw materials ready, 2. sections, 3. surpass back loose, 4. storage leaves, 5. choppings, 6. store silks, 7. pipe tobaccos and add
Wet, 8. microwave expansions, the sizing of 9. pipe tobaccos, the moisture regain of 10. pipe tobaccos, 11. selection by winnowing, 12. storage silks.I.e. in this example, step 1~6 with
Prior art is identical, and step 12~13 are also same as the prior art.Microwave tobacco thred expansion method of the present invention is to existing
The improvement of step 7~11 in pipe tobacco processing technology, the microwave tobacco thred expansion method is that online continuous production processes include：1
Pipe tobacco humidification, the sizing of 2 microwave expansions, 3 pipe tobaccos, the moisture regain of 4 pipe tobaccos, above-mentioned 4 steps.
Specific embodiment is：
S1, pipe tobacco humidification：Prepare the pipe tobacco of moisture content 20%；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is equal to
100kW/m2, Bulking Time 9 seconds；The thickness of pipe tobacco on a moving belt is 40mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%.
Tobacco expanding rate is 20% after test moisture regain, and tobacco fill value is for 5.0cm3/g。
Embodiment 2
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 25% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is equal to
100kW/m2, Bulking Time 9 seconds；The thickness of pipe tobacco on a moving belt is 40mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%.
Tobacco expanding rate is 21% after test moisture regain, and tobacco fill value is for 5.1cm3/g。
Embodiment 3
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 30% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is equal to
100kW/m2, Bulking Time 9 seconds；The thickness of pipe tobacco on a moving belt is 40mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%.
Tobacco expanding rate is 20% after test moisture regain, and tobacco fill value is for 5.0cm3/g。
Embodiment 4
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 25% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density increases to
120kW/m2, Bulking Time 9 seconds；The thickness of pipe tobacco on a moving belt is 40mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%.
Tobacco expanding rate is 22% after test moisture regain, and tobacco fill value is for 5.2cm3/g。
Embodiment 5
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 25% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density increases to
150kW/m2, Bulking Time 9 seconds；The thickness of pipe tobacco on a moving belt is 40mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%.
Tobacco expanding rate is 25% after test moisture regain, and tobacco fill value is for 5.5cm3/g。
Embodiment 6
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 25% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density increases to
180kW/m2, Bulking Time 9 seconds；The thickness of pipe tobacco on a moving belt is 40mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%.
Tobacco expanding rate is 22% after test moisture regain, and tobacco fill value is for 5.2cm3/g。
Embodiment 7
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 25% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density increases to
200kW/m2, Bulking Time 9 seconds；The thickness of pipe tobacco on a moving belt is 40mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%.
Tobacco expanding rate is 21% after test moisture regain, and tobacco fill value is for 5.1cm3/g。
Embodiment 8
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 25% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is 150kW/
m2, Bulking Time increase is 13 seconds；The thickness of pipe tobacco on a moving belt is 40mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%.
Tobacco expanding rate is 27% after test moisture regain, and tobacco fill value is for 5.6cm3/g。
Embodiment 9
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 25% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is 150kW/
m2, Bulking Time increase is 18 seconds；The thickness of pipe tobacco on a moving belt is 40mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%.
Tobacco expanding rate is 25% after test moisture regain, and tobacco fill value is for 5.5cm3/g。
Embodiment 10
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 25% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is 150kW/
m2, Bulking Time is 13 seconds；The thickness of pipe tobacco on a moving belt is reduced to 30mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%.
Tobacco expanding rate is 27% after test moisture regain, and tobacco fill value is for 5.7cm3/g。
Embodiment 11
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 25% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is 150kW/
m2, Bulking Time is 13 seconds；The thickness of pipe tobacco on a moving belt is reduced to 20mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%.
Tobacco expanding rate is 28% after test moisture regain, and tobacco fill value is for 5.8cm3/g。
Embodiment 12
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 25% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is 150kW/
m2, Bulking Time is 13 seconds；The thickness of pipe tobacco on a moving belt is reduced to 20mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 5%；
S4, pipe tobacco moisture regain：Pipe tobacco moisture regain increases to moisture content 12%.
Tobacco expanding rate is 30% after test moisture regain, and tobacco fill value is for 6cm3/g。
Embodiment 13
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 25% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is 150kW/
m2, Bulking Time is 13 seconds；The thickness of pipe tobacco on a moving belt is reduced to 20mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos 6%；
S4, pipe tobacco moisture regain：Pipe tobacco moisture regain increases to moisture content 13%.
Tobacco expanding rate is 29% after test moisture regain, and tobacco fill value is for 5.9cm3/g。
Embodiment 14
In the present embodiment, the processing technology of pipe tobacco is substantially the same manner as Example 1, and difference is microwave tobacco thred expansion method
Specific embodiment be：
S1, pipe tobacco humidification：Preparing moisture content increases to 25% pipe tobacco；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is 150kW/
m2, Bulking Time is 13 seconds；The thickness of pipe tobacco on a moving belt is reduced to 20mm.
S3, pipe tobacco sizing：Shaped using the natural type of cooling；Moisture content of cut tobaccos is reduced to 4.9%；
S4, pipe tobacco moisture regain：Pipe tobacco moisture regain increases to moisture content 12%.
Tobacco expanding rate is 19% after test moisture regain, and tobacco fill value is for 4.9cm3/g。
Embodiment 15
As shown in Figure 1 to Figure 3, the present embodiment discloses a kind of swollen using the microwave pipe tobacco of any of the above-described embodiment methods described
Swollen device, expands for carrying out microwave heating to pipe tobacco, and described device includes conveyer belt 6, microwave cavity 1, microwave source feedback
Mouthful；The microwave source feedback mouth is multiple, is distributed on the different inwalls of the microwave cavity；The conveyer belt is used to transmit institute
Pipe tobacco is stated, and through the microwave cavity.
Roof microwave source feedback mouth 2 is provided with the top surface inwall of the microwave cavity 1, and is provided with side inner walls
Side wall microwave source feedback mouth；The side wall microwave source feedback mouth is arranged in the relative side inner walls of the microwave cavity, is respectively
The first side feedback microwave source feedback mouth 3 and second side feedback microwave source feedback mouth 4 shown in figure.As shown in FIG., installed in relative side
There is space angle between the first side feedback microwave source feedback mouth 3 and second side feedback microwave source feedback mouth 4 on the inwall of face；The present embodiment
In, the space angle is 90 degree.The microwave expansion equipment of the present embodiment, to the installation form and position of microwave source and its feedback mouth
This optimization, the even microwave distribution in microwave cavity 1 can be made.Because being evenly distributed for microwave avoids microwave and added
The hot-spot problem hankered, is conducive to increasing substantially the heating power of microwave.
Do not indicated in figure, the microwave cavity 1 is provided with microwave source, the microwave source quantity is multiple, is passed through
Respective microwave source presents mouth and launches microwave to microwave resonance intracavitary, passes through microwave tobacco shred expansion device of the invention non-interference
Multi-resonant high density electromagnetic field pipe tobacco is heated, the microwave frequency 2450MHz of the microwave source, single microwave source it is micro-
Wave power is more than 15KW；Due to making three microwave sources in the present embodiment, therefore the microwave source general power of the microwave cavity is big
It is more than or equal to 100kW/m in 45KW, and microwave resonance intracavitary microwave power density2.But microwave density can not be simply
Improve, as can be seen that Microwave Power Density is 150kW/m from the above embodiments2To be optimal.Therefore microwave in the present embodiment
The size of resonator 1 is long 600mm, wide 300mm, high 200mm；Each individually microwave source power is more than in the present embodiment
15kW；Overall device power is more than 45kW.
In the present embodiment, the width of conveyer belt 6 200mm is used to transmit pipe tobacco through the microwave cavity 1.From above-mentioned
Embodiment in can obtain, the Bulking Time tobacco expanding effect of 9 seconds~18 seconds can reach the effect of anticipation in the method
Really, therefore with reference to the size of above-mentioned microwave cavity 1, the transfer rate of the conveyer belt 6 of the present embodiment is 2-4m/min.
Described above is only presently preferred embodiments of the present invention, not makees any formal limitation to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompting make it is a little change or be modified to
The equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modification, equivalent variations and modification that above example is made, in the range of still falling within the present invention program.
Claims (10)
1. a kind of method of microwave tobacco expanding, it is characterised in that comprise the steps：
S1, pipe tobacco humidification：Prepare the pipe tobacco of moisture content 20%~30%；
S2, microwave expansion：The expanded cut tobacco in microwave equipment, microwave frequency 2450MHz, Microwave Power Density is more than or equal to
100kW/m2, Bulking Time 9 seconds~18 seconds；
S3, pipe tobacco sizing：Shaped using the natural type of cooling, after pipe tobacco sizing, moisture content of cut tobaccos is not less than 5%；
S4, pipe tobacco moisture regain：Pipe tobacco gets damp again to moisture content 11%-13%.
2. according to the method described in claim 1, it is characterised in that：In step s 2, Microwave Power Density is 100kW/m2~
200kW/m2；It is preferred that Microwave Power Density is 120kW/m2~180kW/m2；Further preferred Microwave Power Density is 150kW/
m2。
3. according to the method described in claim 1, it is characterised in that：In step s 2, the microwave equipment is presented using many microwaves
There is space angle between mouth design, the microwave feedback mouth, pipe tobacco is entered by non-interference multi-resonant high density electromagnetic field
Row heating.
4. the method according to any one of claims 1 to 3, it is characterised in that：In step s 2, the pipe tobacco passes through transmission
The transmission of band, the microwave expansion is carried out in microwave resonance intracavitary；
Preferably, the transfer rate of the conveyer belt is 2-4m/min.
5. the method according to any one of Claims 1 to 4, it is characterised in that：In step s 2, the pipe tobacco is passed described
The pavement thickness taken is sent to be no more than 40mm；
Preferably, pavement thickness of the pipe tobacco on the conveyer belt is 20-40mm.
6. method according to claims 1 to 5, it is characterised in that：After step S4, tobacco expanding rate be 20%~
30%, tobacco fill value is for 5.0cm3/ g~6.0cm3/g。
7. the device of a kind of microwave tobacco expanding using such as any one of claim 1~6 methods described, for being carried out to pipe tobacco
Microwave heating expansion, it is characterised in that：Described device includes conveyer belt, microwave cavity, microwave source feedback mouth；The microwave source feedback
Mouth is multiple, is distributed on the different inwalls of the microwave cavity；The conveyer belt is used to transmit the pipe tobacco, and through institute
State microwave cavity.
8. device according to claim 7, it is characterised in that：Roof is provided with the top surface inwall of the microwave cavity
Side wall microwave source feedback mouth is provided with microwave source feedback mouth, and side inner walls；
Preferably, the side wall microwave source feedback mouth is arranged in the relative side inner walls of the microwave cavity.
9. device according to claim 8, it is characterised in that：The side wall microwave in relative side inner walls
There is space angle between source feedback mouth；
Preferably, the space angle is 90 degree.
10. device according to claim 7, it is characterised in that：The microwave cavity is provided with microwave source, the microwave
Source quantity is multiple, and mouth is presented to microwave resonance intracavitary transmitting microwave, the microwave frequency of the microwave source by respective microwave source
2450MHz, the microwave power of single microwave source is more than 15KW；The microwave source general power of the microwave cavity is more than 45KW, and
The power density of microwave resonance intracavitary microwave is more than or equal to 100kW/m2。
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| CN110313636A (en) * | 2018-03-29 | 2019-10-11 | 北京航天雷特机电工程有限公司 | A kind of microwave cavity and the electronic cigarette with microwave cavity |
| CN112155248A (en) * | 2020-11-02 | 2021-01-01 | 桂林市鲍姑红艾医药科技有限公司 | Preparation method of wormwood health cigarette |
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