CN2579180Y - Dry ice expansion tobacco device - Google Patents
Dry ice expansion tobacco device Download PDFInfo
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- CN2579180Y CN2579180Y CN 02253991 CN02253991U CN2579180Y CN 2579180 Y CN2579180 Y CN 2579180Y CN 02253991 CN02253991 CN 02253991 CN 02253991 U CN02253991 U CN 02253991U CN 2579180 Y CN2579180 Y CN 2579180Y
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- pipeline
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- sublimating
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Abstract
The utility model discloses dry ice expanding tobacco shred equipment used for enhancing the whole shred rate of expanding tobacco shreds. The utility model has the main technical characteristics that a sublimator of the equipment is composed of two S-shaped sublimating pipelines with large curvature radii, and the upper section of the S-shaped sublimating pipeline is connected with a saturated vapour and water atomizer. The cross section of the S-shaped sublimating pipeline is a rectangular section, and the ratio of the width and the depth of the rectangular section is 4: 2. The depth upwards extending to the middle part of the S-shaped sublimating pipeline from the lower end of the S-shaped sublimating pipeline is gradually increased, and the cross section from the lower end to the middle part forms a gradual smooth enlarged shape. The depth upwards extending to the upper end of the S-shaped sublimating pipeline from the middle part of the S-shaped sublimating pipeline is gradually diminished, and the cross section from the middle part to the upper end forms a gradual smooth reduced shape. The structure of the S-shaped sublimating pipeline and the saturated vapour and water atomizer which is additionally arranged can effectively enhance the expansion rate of the tobacco shreds, the pliability of the tobacco shreds is maintained, shiver making rates are low, and meanwhile, the loss of the fragrance of the tobacco shreds is reduced.
Description
Technical field
The utility model relates to a kind of dry-ice expanding tobacco device that is used to improve expanded cut tobacco whole cut rate and quality.
Background technology
Pipe tobacco is through inflating medium, and for example behind the liquid CO 2 dipping, being admitted to superheated steam is to carry out expansion process in the high temperature gas flow pipeline system of main gas phase.Pipe tobacco after the expansion, expansion rate can reach 100%, or the filling value reaches 8cm3/g, is cigarette industry upgrading consumption reduction, improves the strong instrument of smoking security.Therefore, expanded cut tobacco technology and equipment thereof are extensively adopted by countries in the world.
Typical DIET technology and equipment thereof, be dry-ice expanding pipe tobacco technology and equipment thereof, be that pipe tobacco becomes the dry ice pipe tobacco behind the liquid CO 2 dipping, through loosening device, vibration cabinet and quantitative feeding belt, send into the high temperature gas flow induction system and handle, dry ice in the pipe tobacco and solid-state moisture are vaporized rapidly and are obtained expanding.The core of this flow delivery systems is 90 ° of elbows with two minor radius, and interlude is the round tube sublimator of vertical section, and this sublimator is connected between Venturi tube and the tangential separator.After expanding, the pipe tobacco moisture content is 2%～4%, gets damp again to moisture content 12%～14% after belt feeder is delivered to ordering cylinder.After this technology and equipment thereof were extensively used by countries in the world, its defective was found gradually, and after promptly expanding, the pipe tobacco broken rate is higher, and fragrance matter reduces significantly in the pipe tobacco, even burnt burning occurs in the flue gas.Particularly make broken problem, become the problem that cigarette industry is paid much attention to.The expanded cut tobacco of this kind explained hereafter is made broken more serious after the cigarette high speed machine rolls, and has influenced the cigarette quality.At present, cigarette industry will improve the expanded cut tobacco whole cut rate, suitably reduce the filling value as developing direction.
According to one's analysis, pipe tobacco is unscientific by the method that mechanical mode adds moisture again after the high temperature expansion drying is handled.Because, the cell tissue structure of pipe tobacco that expansion drying has been handled destroyed, simultaneously, being dried in conjunction with the moisture major part in the pipe tobacco is unbound water by mechanical mode adding moisture, and the pliability of pipe tobacco reduces greatly, and hard fragility increases.
According to the defective of DIET technology and equipment thereof, the measure of many its process equipments of improvement appears.These improve substantially can be divided into two classes: a class is to improve the impregnation technology and the equipment of pipe tobacco; Another kind of is to improve high-temperature gas to carry expansion system and technology.These improve has all obtained certain effect.But be confined to " pipe tobacco is handled the back by the method for mechanical mode at adding moisture through the high temperature expansion drying " basically.
The utility model content
The purpose of this utility model provides that a kind of tobacco expanding rate is higher, broken rate is low, reduces the dry-ice expanding tobacco device of pipe tobacco loss of aroma.
For achieving the above object, the solution that the utility model adopted is: a kind of dry-ice expanding tobacco device, comprise a sublimator that is connected between Venturi tube and the tangential separator, and it is characterized in that: described sublimator is a serpentine distillation pipeline; Also be connected with a saturated vapor that communicates with it and a water atomizer(-iser) on this serpentine distillation pipeline.
The cross section of described serpentine distillation pipeline is the square-section, and its width is 4: 2 with the ratio of the degree of depth.
The radius of curvature of described serpentine distillation pipeline hypomere sweep is 1500～4500 millimeters; The radius of curvature of described serpentine distillation pipeline epimere sweep is 1000～3000 millimeters.
Described serpentine distillation lower end of duct inlet size, shape are corresponding with interface size, the shape of Venturi tube; Described serpentine distillation pipeline upper end outlet size, shape are corresponding with interface size, the shape of tangential separator.
Described serpentine distillation pipeline extends upwardly to the degree of depth at middle part from the lower end cumulative, and its cross section is and smoothly enlarges shape gradually; Described serpentine distillation pipeline upwards continues to extend to the upper end from the middle part the degree of depth decrescence, its cross section is and smoothly dwindles shape gradually.
Described saturated vapor and the water atomizer(-iser) that is connected on the serpentine distillation pipeline, its junction to the vertical distance of this serpentine distillation lower end of duct horizontal center line is more than 3000 millimeters.
After adopting such scheme, the utility model compared with prior art has following beneficial effect:
Because the utility model is a kind of improved dry-ice expanding tobacco device, its sublimator changes a distillation pipeline with one-tenth serpentine of two larger radius of curvature into, its rectangular cross section degree of depth enlarges from the bottom to top gradually then dwindles again gradually, gradually the degree of depth of Zeng Jiaing flowing velocity is entered the mouth from sublimator vertical substantially middle pipeline section is mild evenly to descend, can avoid before solid CO2 finishes distillation, the pipe tobacco of bulk is transmitted tangential separator.The last duct section of outlet from middle duct section to sublimator, its degree of depth is shunk, and just can quicken expanded cut tobacco, makes it to enter a tangential separator.The level and smooth distillation pipeline of long radius also avoids the flow direction sudden change of tilted tube section, and this makes broken problem with regard to the pipe tobacco that has solved 90 ° of elbow sections of prior art obviously and cause.
Have the experiment of pneumatic conveying drying to learn, in the drying tube about material mouthful above 1m, rate of drying is the fastest, and the heat that has gas to pass to material accounts for 1/2～3/4 of heat output in the whole drying tube.For this dry-ice expanding tobacco device system, the motion conditions of pipe tobacco in sublimator can be divided into accelerated motion section and constant motion section.Usually accelerating sections is finished in 1～3m more than charge door.Volumetric heat transfer coefficient in the accelerating sections is than big many of wanting in the constant-speed section.When pipe tobacco enters the sublimator inlet, caliber is less, air velocity is higher, and pipe tobacco produces accelerated motion, when accelerated motion at the end, the sublimator sectional area becomes maximum, because the effect of inertia of material movement, make in this section material speed greater than air velocity, after the material deceleration, the sublimation pipe sectional area diminishes again gradually, and pipe tobacco is quickened by air-flow again.Thereby the relative velocity of gas and storeroom and heat transfer area are all bigger, have improved heat transfer and mass transfer rate, thereby the tobacco expanding rate is also higher.
In the utility model dry-ice expanding tobacco device, owing on the height of serpentine distillation pipeline more than 3 meters, be connected with saturated vapor and water atomizer(-iser) with nozzle, be used to increase the steam content of process gas, reduce process gas temperature, the steam addition is adjustable simultaneously, can be according to technological requirement steam regulation addition.Purpose is in order to regulate the water content of pipe tobacco, and the pipe tobacco water content is reached in 9%～12% the scope, even no longer dry when moisture in cut tobacco is dried to 9%～12% require, just can reach the purpose that improves whole cut rate.Simultaneously, this part steam is not participated in the process gas circulation, to keep the steam content of process gas.According to technological requirement, feed intake the pipe tobacco moisture content generally 19%～24%, and the acceleration dryer section of sublimation pipe is finished 1/2～3/4 of heat transmission substantially, and the tobacco expanding process is finished substantially, second half section is continued dry run except that moisture is removed, and has not had other effects.This is that traditional DIET sublimator does not possess.In addition, the front portion of sublimator pipeline has a Venturi tube, can quicken thermal current and enter sublimator.This Venturi tube comprises a long pipe tobacco intake line that tilts a little, with the distribution shape of definite air-flow, thereby dashes the bottom of sweeping down duct section, keeps the pipe tobacco piece to flow through pipeline.
In sum, serpentine that the utility model dry-ice expanding tobacco device is had distillation pipeline helps improving the uniformity of air current flow in the sublimator, and makes dry ice pipe tobacco and air-flow ground contact area more abundant.Therefore, use equipment of the present utility model, can obtain higher tobacco expanding rate, especially the pipe tobacco whole cut rate is greatly enhanced.Because the utility model mainly is controlled at the tobacco expanding section sublimation pipe ascent stage or preceding half section, second half section is then controlled moisture, kept the pipe tobacco pliability, reduced the loss of pipe tobacco fragrance, after the finished cut tobacco of producing enters high-speed cigarette machine, brokenness also reduces greatly, has improved the cigarette quality.
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is done to describe in further detail.
Description of drawings
Fig. 1 is the utility model dry-ice expanding tobacco device general structure schematic diagram.
The specific embodiment
As shown in Figure 1, the utility model dry-ice expanding tobacco device is that an air-flow is carried the expanded cut tobacco pipe-line system, comprise: Venturi tube 1, pipe tobacco feeder lock 2, tangential separator 5, be connected the sublimator 4 between Venturi tube 1 and the tangential separator 5, cyclone dust collectors 6, technology blower fan 7, exhaust gas fan 8, combustion furnace 9, steam control valve 10 and 11, connecting pipe 12 and water regulating valve 13, major technique feature of the present utility model is that the sublimator 4 that will be connected between Venturi tube 1 and the tangential separator 5 changes serpentine distillation pipeline 4 into, and on this serpentine distillation pipeline 4, be connected with a saturated vapor that communicates with it and water atomizer(-iser) 3, its junction to the vertical distance of these serpentine distillation pipeline 4 lower end horizontal center lines is more than 3000 millimeters, just be located at serpentine distillation pipeline middle part to the last duct section of upper end, this saturated vapor and water atomizer(-iser) have the nozzle that can spray into serpentine distillation pipeline 4 interior steam and water, below above-mentioned steam control valve 11 and water regulating valve 13 fit adjustment distillation pipeline upper semisection process gas temperature to 160 ℃, to increase discharging moisture content to 9%～12%.Above-mentioned steam control valve 10 is used to regulate the quantity of steam that enters process pipe.
Above-mentioned through improved sublimator 4, promptly serpentine distillation pipeline 4 also has following technical characterictic, and its cross section is the square-section, and the long limit of this square-section is called width, code name W, and the square-section minor face is called the degree of depth, and code name D, the ratio of W/D are limited in 4: 2 scopes.The radius of curvature of these serpentine distillation pipeline 4 hypomere sweeps is controlled at 1000～3000 millimeters, and the radius of curvature of epimere sweep is controlled at 1500～4500 millimeters.Lower end inlet size, the shape of this serpentine distillation pipeline 4 are corresponding with interface size, the shape of Venturi tube 1, to constitute serpentine the fixedlying connected of pipeline 4 lower ends and Venturi tube 1 right-hand member that distil; Upper end outlet size, the shape of this serpentine distillation pipeline 4 are corresponding with interface size, the shape of tangential separator 5, to constitute serpentine the fixedlying connected of pipeline 4 upper ends and tangential separator 5 that distil.The cross section of this serpentine distillation pipeline 4 on total length is different, and its depth D changes.The depth D that extends upwardly to the middle part from the lower end of serpentine distillation pipeline 4 increases gradually, and its cross section is and smoothly enlarges shape gradually; The depth D that upwards continues to extend to the upper end from the middle part of serpentine distillation pipeline 4 reduces gradually, and its cross section is and smoothly dwindles shape gradually.
The working condition of the utility model dry-ice expanding tobacco device is described below more in conjunction with specific embodiments.
As shown in Figure 1, the dry ice pipe tobacco enters Venturi tube 1 by pipe tobacco feeder lock 2, and Venturi tube throat thermal current speed reaches 47m/s, 330 ℃ of temperature, and the dry ice pipe tobacco is sent into serpentine distillation pipeline 4 by this air-flow.The width W of serpentine distillation pipeline 4 is 660mm, entry depth D is 178mm, the outlet depth D is 191mm, intermediate depth D is 381mm, if the radius of curvature of the center line hypomere sweep of serpentine distillation pipeline is R1, the radius of curvature of its epimere sweep is R2, R1=1829, R2=3048.When pipe tobacco during through the hypomere of serpentine distillation pipeline 4, air-flow changes to vertical direction with pipeline circular arc direction, and speed portion this hereinto reduces to prevent that block dry ice pipe tobacco from not expanding just enters tangential separator.Then, air velocity is owing to the outlet size that pipeline depth is decreased to serpentine distillation pipeline 4 gradually is that 191mm is increased to 30m/s, thereby the pipe tobacco that quickens to expand enters tangential separator 5.Spray into steam and water at this accelerating sections owing to being provided with saturated vapor and water adding device, just can reduce process gas temperature, increase process gas humidity simultaneously, and reduce dry motive force, thereby increase the moisture of pipe tobacco, reduce the temperature of pipe tobacco.At the inlet of tangential separator 5, process gas temperature is about 160 ℃.
Claims (6)
1, a kind of dry-ice expanding tobacco device comprises a sublimator that is connected between Venturi tube and the tangential separator, it is characterized in that: described sublimator is a serpentine distillation pipeline; Also be connected with a saturated vapor that communicates with it and a water atomizer(-iser) on this serpentine distillation pipeline.
2, a kind of dry-ice expanding tobacco device according to claim 1 is characterized in that: the cross section of described serpentine distillation pipeline is the square-section, and its width is 4: 2 with the ratio of the degree of depth.
3, a kind of dry-ice expanding tobacco device according to claim 1 is characterized in that: the radius of curvature of described serpentine distillation pipeline hypomere sweep is 1500～4500 millimeters; The radius of curvature of described serpentine distillation pipeline epimere sweep is 1000～3000 millimeters.
4, a kind of dry-ice expanding tobacco device according to claim 1 is characterized in that: described serpentine distillation lower end of duct inlet size, shape are corresponding with interface size, the shape of Venturi tube; Described serpentine distillation pipeline upper end outlet size, shape are corresponding with interface size, the shape of tangential separator.
5, a kind of dry-ice expanding tobacco device according to claim 1 and 2 is characterized in that: described serpentine distillation pipeline extends upwardly to the degree of depth at middle part from the lower end cumulative, and its cross section is and smoothly enlarges shape gradually; Described serpentine distillation pipeline upwards continues to extend to the upper end from the middle part the degree of depth decrescence, its cross section is and smoothly dwindles shape gradually.
6, a kind of dry-ice expanding tobacco device according to claim 1, it is characterized in that: described saturated vapor and the water atomizer(-iser) that is connected on the serpentine distillation pipeline, its junction to the vertical distance of this serpentine distillation lower end of duct horizontal center line is more than 3000 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253991 CN2579180Y (en) | 2002-09-18 | 2002-09-18 | Dry ice expansion tobacco device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253991 CN2579180Y (en) | 2002-09-18 | 2002-09-18 | Dry ice expansion tobacco device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2579180Y true CN2579180Y (en) | 2003-10-15 |
Family
ID=33722976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02253991 Expired - Lifetime CN2579180Y (en) | 2002-09-18 | 2002-09-18 | Dry ice expansion tobacco device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2579180Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101433373B (en) * | 2008-12-12 | 2011-05-25 | 广东中烟工业有限责任公司 | Granule and preparation method thereof |
| CN101371719B (en) * | 2007-08-21 | 2011-06-15 | 武汉烟草(集团)有限公司 | Method for processing short cabo less than 20mm into expanded cut stem |
| CN102188041A (en) * | 2010-03-05 | 2011-09-21 | 福建中烟工业公司 | Expansion processing method for flexible dry ice cut tobaccos |
| CN102895833A (en) * | 2012-09-26 | 2013-01-30 | 北京达特烟草成套设备技术开发有限责任公司 | Device for treating flue gases during production process of dry-ice expanded cut tobacco |
| CN106233917A (en) * | 2016-08-04 | 2016-12-21 | 杨进 | It is easy to the hay mover of spraying medicine |
-
2002
- 2002-09-18 CN CN 02253991 patent/CN2579180Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371719B (en) * | 2007-08-21 | 2011-06-15 | 武汉烟草(集团)有限公司 | Method for processing short cabo less than 20mm into expanded cut stem |
| CN101433373B (en) * | 2008-12-12 | 2011-05-25 | 广东中烟工业有限责任公司 | Granule and preparation method thereof |
| CN102188041A (en) * | 2010-03-05 | 2011-09-21 | 福建中烟工业公司 | Expansion processing method for flexible dry ice cut tobaccos |
| CN102895833A (en) * | 2012-09-26 | 2013-01-30 | 北京达特烟草成套设备技术开发有限责任公司 | Device for treating flue gases during production process of dry-ice expanded cut tobacco |
| CN106233917A (en) * | 2016-08-04 | 2016-12-21 | 杨进 | It is easy to the hay mover of spraying medicine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120918 Granted publication date: 20031015 |