CN101862021B - Steam stalk moistening method and equipment for implementing same - Google Patents
Steam stalk moistening method and equipment for implementing same Download PDFInfo
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- CN101862021B CN101862021B CN 201010204418 CN201010204418A CN101862021B CN 101862021 B CN101862021 B CN 101862021B CN 201010204418 CN201010204418 CN 201010204418 CN 201010204418 A CN201010204418 A CN 201010204418A CN 101862021 B CN101862021 B CN 101862021B
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Abstract
The invention provides a tobacco stalk pre-processing method and tobacco stalk pre-processing equipment which can shorten the water permeability time of the tobacco stalk, ensure consistent moisture of the soaked tobacco stalk, save the storage process of the moistening of the tobacco stalk and simplify the process flow. The method comprises the following steps of: feeding a tobacco stalk material into a screw conveyer which is filled with steam and keeps proper pressure and proper temperature; continuously feeding the tobacco stalk material into the screw conveyer through a feeding vapor lock; continuously discharging the tobacco stalk material through a discharging vapor lock; and increasing the moisture and the temperature of the tobacco stalk to meet the requirements of the stalk pressing and cutting process on the discharging temperature and the moisture. The equipment comprises a bearing screw conveyer with a steam inlet and a water drainage port; a feed port and a discharge port of the screw conveyer are provided with the feeding vapor lock and the discharging vapor lock respectively; and the feeding vapor lock is provided with a water replenishing port. The water permeability of the tobacco stalk is improved by increasing the pressure and the temperature of the moistening environment of the tobacco stalk, so that the method and the equipment shorten the water permeability time of the tobacco stalks, quickly realize the pre-processing effect of the moistening of the tobacco stalk, save the storage process of the moistening of the tobacco stalk and greatly simplify the process flow of the stalk processing.
Description
Technical field
The present invention relates to the pretreated method of offal in the tobacco processing course, relate in particular to a kind of processing method of before the offal chopping, utilizing the moistening offal of steam.
Background technology
For the tobacco processing technology, the inside and outside moisture content harmony that offal is processed is most important to offal chopping quality, improves the front treatment effect of offal chopping, reduces process operation and energy consumption, improving the process control quality, is that enterprise reduces production costs and improves the important channel of crudy.
Chinese patent 200610098314.5 provides a kind of tobacco stalk processing method, this tobacco stalk processing method, comprise screening, dedusting selection by winnowing, flow-control and expanded cabo, described expanded cabo is treated to the on-line continuous expansion process, tobacco stalk raw material is sent into the pressurized treatments storehouse through feeding warehouse, inlet steam gas lock that is:; Evenly sprayed into high-pressure saturated steam or superheated steam in the pressurized treatments storehouse; Tobacco stalk raw material in the pressurized treatments storehouse is stirred and is delivered to the outlet of pressurized treatments storehouse by helix transporting device, then discharge through outlet steam gas lock, enters the discharging bin under the atmospheric pressure state, obtains cabo expansion by the moment step-down.The offal filling value that the method is processed is high, is applied to the content that can effectively reduce the harmful components such as tar, nicotine and carbon monoxide in the cigarette product.
But the offal after the expanded operation of above-mentioned high steam is processed, the complete pyrolysis of its fiber can not be carried out chopping processing fully, and the offal swelling granular that can only make 1-3mm is mixed in the pipe tobacco.Profile and the physicochemical property of cabo particle and pipe tobacco differ greatly, and the compatibility of the two is relatively poor; The lack of homogeneity of mixing of graininess stalk grain and pipe tobacco; The spices adsorption capacity of expanded stalk grain is strong than pipe tobacco.Carrying out this cabo particle when mixing, blending proportion has considerable restraint, general control is about 5%-15%, therefore, the stalk grain processing method that Chinese patent 200610098314.5 proposes can not replace the hot and humid chopping of traditional offal to process line, cabo particle can not substitute stem, and they can only be as means of tobacco tar-reducing harm reduction, and the process application of cabo particle is worth also among further studying.
For these reasons, all tobacco enterprises are still take traditional hot and humid offal chopping treatment process as main, that is: offal being carried out the dedusting after washing processes, through repeatedly steaming stalk and terrier storage, carry out the offal chopping after the inside and outside moisture content that makes offal is relatively consistent, carry out the stem expansion drying by the stem flashing apparatus again and process.As shown in Figure 1, the typical process flow that traditional offal is processed comprises: the offal dedusting of getting the raw materials ready, quantitatively enter after the feeding and wash the stalk operation, the offal that washes once steams stalk, steam that the offal moisture content is 26-32% behind the stalk, about temperature 50 C ± 3 ℃, enter the storage cabinet and store, storage time 〉=4 hour are with the difference of the inside and outside moisture content of balanced offal; Offal after moisture regain once pressing stalk, need to carry out secondary before cutting stem steams stalk and realizes the secondary moisture regain, offal moisture content 28-36% after the secondary moisture regain, 85 ℃ ± 3 ℃ of temperature, the offal of this moment is comparatively pliable and tough, moisture content is relatively even, through pressing stalk, chopping, carrying out expansion drying after reinforced, carry out again entering after the perfuming selection by winnowing and mix different substances together.
Above-mentioned tradition stalk pretreating process long flow path, operation is complicated, and terrier and the terrier storage that need to carry out are repeatedly processed, and offal is realized the raising of stalk edema with the heart involved part fully by the penetrating power of offal self under the timeliness effect, the offal period of storage may be grown to 24 hours, and it is relatively consistent to approach the interior moisture content of table.Therefore, traditional tobacco stalk pretreatment process has the following disadvantages:
1, to run through rate relatively poor for offal.Offal after the moisture regain can only be by storing the equilibrium that realizes moisture content for a long time.
2, cutting the stalk moisture content can not effectively control.It is sometimes too high to cut the stalk moisture content, and it is relatively poor to cause cutting the stem uniformity.
3, technological process is complicated, and occupation area of equipment is also larger, and investment is high, and energy resource consumption is high.
4, the offal processing links is many, complex procedures, and procedure quality is difficult to control.
CN101611924 provides the method for on a kind of scrap prodn. line offal being processed, and its step comprises that vacuum conditioning, water channel type tobacco steam-humidifying machine are washed stalk, tunnel type offal damping machine terrier, pressure stalk, chopping, injecting type stem damping machine gets damp again and channel type cut tobacco drying machine baking silk.The method is by increasing offal vacuum conditioning treatment process before washing the stalk operation, make offal owing to absorbed atomized water steam, possessed certain temperature and humidity, significantly improve the performance indications of former washing stalk operation, guarantee simultaneously fully to cut the moisture content of offal before the stem, make and cut that stem technique is more convenient to be finished safely.But this processing method does not make the offal treatment process simplify, and on the contrary, also needs to increase vacuum humidifying device, can't effectively realize the purpose that tobacco enterprise reduces production costs.
It all is under atmospheric pressure state that existing hot and humid cabo processing technique is processed the profit stain of offal, utilize the profit stain of the water penetration realization offal of offal, want to make moisture to infiltrate within a certain period of time offal inside and need the long period, this mode relies on the moisture content suction of offal self to realize moisture penetration fully, is difficult to make the inside and outside moisture content of offal to reach even.
Summary of the invention
Technical problem to be solved by this invention provides a kind of offal permeability time that shortens, and guarantees that the inside and outside moisture content of offal profit stain is consistent, and can omit the storage procedure of offal profit stain, the steam stalk moistening of simplification of flowsheet.
Steam stalk moistening of the present invention comprises the offal material is sent in the conveying worm, passes into steam in conveying worm, offal is added gentle moistening; Be full of steam in the described conveying worm and keep suitable pressure and temperature, the offal material is continuously in charging vapour is locked into this conveying worm, and discharge through discharging vapour lock continuously, disposablely finish the moisture content of offal and the lifting of temperature, reach drop temperature and the moisture content requirement of pressing stalk and cutting the stalk operation.
The present invention make the offal material through helical feed continuously by being full of the cavity of the saturated vapor with suitable pressure and temperature, the charging aperture of this cavity and discharging opening are realized sealing by the vapour lock respectively, thereby guarantee that offal profit stain environment has enough pressure and temperatures.Moisture infiltrates the degree of depth of offal, and because environmental pressure, temperature difference change, pressure is healed large, and then moisture content penetrates darker healing soon of offal.Environment temperature is higher, and water fluidity is better, and it is easier then to penetrate offal, and simultaneous temperature makes submicroscopic aperture expansion on the pit membrane, thereby promotes moisture penetration.The steam pressure environment makes the disposable lifting of efficiently finishing rapidly moisture content and temperature of offal, and disposable the reaching of the drop temperature of offal and moisture content pressed stalk and cut the stalk technological requirement.
The present invention is by improving the pressure and temperature of offal profit stain environment, mainly be to pass through pressure, artificially improve the moisture penetration performance of offal, shorten the offal permeability time, the inside and outside moisture content that guarantees offal profit stain is consistent, by the method profit stain offal, can remove the storage procedure of offal profit stain, simplification of flowsheet is realized offal profit stain pretreating effect fast.
Keep suitable pressure and temperature in the described conveying worm, referring to should be not too high as steam pressure and the temperature of terrier treatment media, surpasses 0.6MPa such as pressure, and tobacco stalk fibre will pyrolysis and lose the machinability of chopping at this pressure environment; On the other hand, should be excessively not low yet, be lower than 0.1MPa such as pressure, temperature is lower than 120 ° of C, and moisture penetration performance that then can't the Effective Raise offal realizes disposable terrier operation target fast.
As preferred version, charged pressure is the saturated vapor of 0.1-0.6Mpa in the described conveying worm, and stablizing by operating pressure and temperature in the input and output material vapour lock maintenance conveying worm, and according to the pretreating effect of different trade mark offals, be not less than 0.1MPa, the interior environmental pressure of conveying worm that is not more than 0.6Mpa is regulated.
Compare with the steam stem moistening operation in the traditional handicraft, the present invention utilizes the steam cavity with certain pressure and temperature and relative closure to carry out the moistening operation of offal material, can artificially improve the moisture penetration performance of offal, change the moisture content suction that normal pressure terrier mode relies on offal self fully, by long-time storage, realize the pattern of moisture penetration, and reach fast the suction of offal moisture content, interior free surface moisture acts on uniformly.Simultaneously, discharging vapour lock is discharged into normal pressure with the mixture of offal and steam from the pressure environment of 0.1-0.6Mpa, can realize the expanded of offal, and visual concrete condition is removed the expanded operation in the existing offal drying processes.
Therefore, enforcement of the present invention can replace the washing stalk, steam stalk of tradition stalk treatment process, terrier storage, secondary steaming stalk, terrier storage and tobacco shred bulking operation.Simultaneously, because this method can improve the moisture content of offal inside, reduce the moisture content gradient in the offal table, according to the characteristic process requirements, can realize that offal in the low moisture content chopping below 30%, expanded and dry, effectively reduces energy resource consumption, improve the stem quality.
For guaranteeing the steam stem moistening effect, replenish the water yield shortcoming of steam stem moistening, can at the offal material continuously when charging vapour is locked into into conveying worm, continue to spray moisturizing to the offal material.The moisturizing temperature is generally 20-99 ℃, can select according to actual needs to determine.
For guaranteeing the terrier time, consider simultaneously the restriction of machining accuracy, offal material elder generation carries out high moisture content mixing conveying through the one-level conveying worm of horizontal positioned, is beneficial to preliminary the absorption and the moisture content equilibrium of moisture content of offal; Be higher than the moistening conveying of deuterostrophies conveyer moisture penetration of charging aperture and discharge unnecessary surface water through slant setting, its discharging opening again, to reduce the surperficial water stain of discharging offal, be conducive to subsequent handling processing.The Main Function of secondary terrier conveying worm in terrier be the offal that guarantees to absorb moisture content in pressure environment, moisture content can be further fast to offal internal penetration and balanced moisture content.
The water delivery time of offal in the terrier conveying worm is adjustable at 1-5 minute, and one-level terrier conveying worm can adopt different transporting velocities with secondary terrier conveying worm, to improve penetration and the uniformity of moisture content.
Pass to temperature loss behind the offal for reducing steam thermal energy, increase the heat energy of environment inside, described saturated vapor also can be filled with in the conveying worm behind the heat make-up heat.
Another technical problem that the present invention will solve provides a kind of equipment of realizing above-mentioned steam stalk moistening.
Steam stem moistening device of the present invention comprises being provided with the conveying worm that steam passes into mouth; The charging aperture of described conveying worm and discharging opening are equiped with respectively charging vapour lock and discharging vapour lock; Described conveying worm can bear the steam working pressure (SWP) of 0.6MPa at least.
The setting of described charging and discharging vapour lock can effectively guarantee effectively to keep pressure and temperature in the conveying worm in the offal material is back to back the process of conveying worm.
Restriction based on present equipment process technology, also for realizing better the steam stem moistening treatment effect, described conveying worm is the two-stage terrier conveying worm of series connection, wherein: one-level terrier conveying worm horizontal positioned, 1 ° of-5 ° of placement of secondary terrier conveying worm horizontal tilt raise along the mass transport direction; Minimum point at secondary terrier conveying worm has the automatic water conveying device.
The charging rotation direction side of described charging vapour lock is provided with the moisturizing nozzle, and moisturizing enters conveying worm inside with offal.
Be interrupted on the housing of described one-level terrier conveying worm and secondary terrier conveying worm and be preset with that a plurality of steam pass into mouthful or replenish steam by the helical axis of hollow to inside cavity by swivel joint.Steam inlet on the housing can be arranged on the end of terrier conveying worm; Also can be interrupted on profit conveying worm top and reserve a plurality of steam inlets, in order to adjust the position, steam inlet according to the terrier effect.
It is simple that the present invention has technique, energy-conserving and environment-protective, and stalk profit stain is effective, stem filling value high.
Description of drawings
Fig. 1 is the stalk of tradition described in the background technology of the present invention processing technological flow figure;
Fig. 2 is offal preprocess method process chart of the present invention;
Fig. 3 is device structure schematic diagram of the present invention.
The specific embodiment
As shown in Figure 2, adopt the cabo processing technique flow process of steam stalk moistening of the present invention may further comprise the steps:
A, offal are got the raw materials ready: packed or case dress offal material are removed packing, and dedusting, removal of impurities, this is used for regime flow comprising a cover metering units.
B, wash stalk: the offal material is sent into washed the stalk machine and wash stalk and process, remove the offal surface dirt and be mingled in the foreign material such as metal heavier in the offal, sandstone.
C, steam stem moistening: the offal material that moisture is about (the surperficial moisture content of washing stalk is greater than 12%) about 12% is sent into the steam stem moistening machine, and fills into hot water at the charging aperture place simultaneously; Through helical feed, continuous in being full of the closed cavity that pressure is the saturated vapor of 0.1-0.6Mpa in 1-5 minute; Offal material moisture after the discharging reaches about 30%, and temperature reaches 50 ° more than the C.
D, pressure stalk: the offal that will steam after moistening is sent into the tobacco stem flattener draw down, to improve the compatibility of stem and pipe tobacco.
E, cut stem: offal is sent into filament cutter cut stem.
F, stem feed in raw material: add tobacco spice in the stem material, to improve the suction flavor of stem.
G, stem are expanded: the filling value that improves stem.
H, stem are dry: with the stem moisture drying to 11-13%.
I, stem selection by winnowing: remove stalk label and other foreign material in the stem.
J, stem perfuming: in the stem material, add tobacco spice, to improve the suction flavor of stem.
K, terrier storage silk: be connected stem line processed and mix allotment of labor's order, adjusting process flow.
Certainly, in actual mechanical process, can determine whether to keep by the steam stem moistening effect of washing stalk relatively and stick wherein wash the stalk operation.Secondly, press the stalk operation to decide what to use according to the process requirements of cigarette factory; Simultaneously, the expanded operation of stem also can be determined choice according to technological parameters such as the finished cut tobacco filling value of steam stem moistening operation processing and filament broken rates.
As shown in Figure 3, steam stem moistening machine of the present invention comprises charging vapour lock 1, one-level terrier conveying worm 3, secondary terrier conveying worm 4 and the discharging vapour lock 5 that connects successively; Wherein: one-level terrier conveying worm 3 horizontal positioned; Secondary terrier conveying worm 4 inclination 1-5 ° of degree are placed, and raise along offal mass transport direction; Minimum point at secondary terrier conveying worm 4 arranges automatic water conveying device 6.
As shown in Figure 3, be provided with one to two nozzle 2 in the side of charging vapour lock 1, to the inner required water yield of terrier that evenly sprays into of vapour lock.In this position moisturizing, can guarantee that supplementing water pressure is not subjected to the impact of internal system steam pressure, thereby guarantee the control of rate of water make-up.Can replenish the high-temperature-hot-water below 100 ℃, to reduce the thermal loss of internal system, amount of water can be regulated according to the terrier effect.
Steam stem moistening machine of the present invention is to finish the steam stem moistening operation described in Fig. 2.The water delivery time of offal in the terrier conveying worm is adjustable in 1-5 minute, and one-level terrier conveying worm can adopt different transporting velocities with secondary terrier conveying worm.
Steam stem moistening machine inside can be preset with that a plurality of steam pass into mouthful or replenish steam by the helical axis of hollow to inside cavity by swivel joint by being interrupted on the housing of one-level terrier conveying worm and secondary terrier conveying worm.Steam inlet on the housing can be arranged at leading section, also can be interrupted on the top of terrier conveying worm and reserve a plurality of steam inlets, in order to adjust the position, steam inlet according to the terrier effect.The operating pressure of steam stem moistening machine is 0.1-0.6MPa, and charging and discharging vapour lock can guarantee effectively to keep pressure and temperature in the pressure cavity in the offal material is back to back the process of steam stem moistening machine pressure cavity.
The detecting elements such as the pressure of system, temperature are installed on one-level terrier conveying worm and secondary terrier conveying worm and other appropriate location.Internal system pressure can pass through the air bladder valve regulation.The internal system temperature can suitably be adjusted by moisturizing temperature and vapor (steam) temperature.If needed, can be to Steam Heating before passing into the screw machine cavity, with the needed enthalpy of assurance system.
Claims (5)
1. steam stalk moistening, comprise the offal material is sent in the conveying worm, in conveying worm, pass into steam, offal is added gentle moistening, it is characterized in that: be full of steam in the described conveying worm and keep suitable pressure and temperature, the offal material and is discharged through discharging vapour lock continuously in charging vapour is locked into this conveying worm continuously, disposablely finishes the moisture content of offal and the lifting of temperature; Charged pressure is the saturated vapor of 0.1-0.6Mpa in the described conveying worm, and keeps the interior operating pressure of conveying worm to be not less than 0.1Mpa, and is not more than 0.6Mpa.
2. steam stalk moistening according to claim 1 is characterized in that: be locked into continuously fashionable, lasting to offal material injection moisturizing, to guarantee the requirement of the terrier water yield in the conveying worm through charging vapour at the offal material.
3. steam stalk moistening according to claim 1, it is characterized in that: the first one-level conveying worm through horizontal positioned of offal material carries out high moisture content and mixes moistening conveying, is higher than the moistening conveying of deuterostrophies conveyer moisture penetration of charging aperture and discharges excessive moisture through slant setting, its discharging opening again.
4. steam stalk moistening according to claim 3, it is characterized in that: the time of delivery of offal in conveying worm is 1-5 minute; One-level terrier conveying worm adopts different transporting velocities to carry the offal material with secondary terrier conveying worm.
5. steam stalk moistening according to claim 1 is characterized in that: described saturated vapor is filled with in the conveying worm after heating.
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| CN 201010204418 CN101862021B (en) | 2010-06-21 | 2010-06-21 | Steam stalk moistening method and equipment for implementing same |
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| CN 201010204418 CN101862021B (en) | 2010-06-21 | 2010-06-21 | Steam stalk moistening method and equipment for implementing same |
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| CN2012102256511A Division CN102715633A (en) | 2010-06-21 | 2010-06-21 | Steam tobacco stem moistening processing device |
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| CN101862021B true CN101862021B (en) | 2013-01-02 |
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| CN103181614B (en) * | 2011-12-30 | 2015-05-20 | 贵州中烟工业有限责任公司 | Tobacco stem preprocessing process |
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| CN103169150B (en) * | 2013-03-01 | 2014-10-29 | 云南正邦生物技术有限公司 | Swelling tobacco stem preparation method |
| CN103404963A (en) * | 2013-05-10 | 2013-11-27 | 湖北中烟工业有限责任公司 | Tobacco perfuming method |
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| CN109674079A (en) * | 2018-12-28 | 2019-04-26 | 红塔烟草(集团)有限责任公司 | It is a kind of to use roller-air-flow stem drying means |
| CN111904019B (en) * | 2020-07-13 | 2022-06-03 | 云南中烟再造烟叶有限责任公司 | Full-automatic stem softening and continuous production method for tobacco stems |
| CN113017137B (en) * | 2021-03-18 | 2022-04-19 | 河南中烟工业有限责任公司 | Control method and system for tobacco stem pressurization and steaming outlet temperature |
| CN114271525A (en) * | 2022-01-06 | 2022-04-05 | 广西中烟工业有限责任公司 | Moisture control method for pressure stem moistening |
| CN116035245A (en) * | 2023-03-13 | 2023-05-02 | 福建中烟工业有限责任公司 | Tobacco stem swelling method, reconstituted tobacco, preparation method and application of reconstituted tobacco and tobacco product |
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