CN108311314A - A kind of method of three Division of tobacco feeding nozzle spray - Google Patents
A kind of method of three Division of tobacco feeding nozzle spray Download PDFInfo
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- CN108311314A CN108311314A CN201810291361.4A CN201810291361A CN108311314A CN 108311314 A CN108311314 A CN 108311314A CN 201810291361 A CN201810291361 A CN 201810291361A CN 108311314 A CN108311314 A CN 108311314A
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- atomization
- area
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- liquid
- blade
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/082—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to a condition of the discharged jet or spray, e.g. to jet shape, spray pattern or droplet size
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of methods of three Division of tobacco feeding nozzle spray.Nozzle axial direction injection direction atomizing effect is divided into inlet zone and non-ejection area for the first time；On this basis, according to the spatial cohesion index of the feed liquid atomizing particle of characteristic diameter as partitioning standards, non-ejection zoning is divided into range of atomization and diffusion region, to realize that the inlet zone, range of atomization and 3rd area of diffusion region of nozzle axial direction injection direction accurately divide.Three Divisions are advanced to feed liquid distributed areas fining of the throwing fining research out of whole roller the range of atomization for directly affecting charging process and effect, specifying influences the key area of throwing fining in roller, it provides the foundation further to refine research, the transparence that charging process nozzle atomization is put into practice, realized for Instructing manufacture plays the role of tobacco business primary processing line charging process quality control vital.
Description
Technical field
It grows tobacco special nozzle atomization technique field the present invention relates to one, the spraying mist of specifically a kind of tobacco feeding process
Three region divisions and method of change process.
Background technology
In recent years, cigarette enterprise applies process study from the output control of traditional charging precision (flavoring) to feed liquid
Process control is gradually developed to, being applied to the uniformity on tobacco leaf to feed liquid proposes higher technological requirement.Primary Processing
Charging process is feed liquid sprinkling atomization with the process constantly turned over the smoked sheet fallen and be combined, and how to be completed to feed liquid in roller in production
It sprays less known to the process of atomization.At present to the atomization mechanism of nozzle in fiber tow production process charging process without system, deeply
Research, hinder tobacco feeding homogeneity, accuracy, quality of tobacco and further increase.
Invention content
In view of it is above-mentioned the problems of in the prior art, the object of the present invention is to provide a kind of regions by spraying
The method for carrying out three Divisions, can be in real time in the intuitive embodiment of the atomised form of spraying, to be conducive to disclose under different operating modes
Nozzle atomization characteristic.
The present invention carries out region division from the spatial shape and distribution characteristics of spraying to spraying, and three Divisions are fine throwing
Change feed liquid distributed areas fining of the research out of whole roller and is advanced to the range of atomization for directly affecting charging process and effect, it is clear
The key area that throwing fining is influenced in roller specifies direction for further fining research, and it is clear to establish spraying
Division principle.
The purpose of the present invention is achieved through the following technical solutions：By high-speed camera to nozzle under corresponding operating mode
Injection behavior shot, graphics process then is carried out to shooting picture, extracts the grain diameter characteristic of each position, definition is special
Grain size is levied, dispersion is calculated, three Divisions are carried out according to dispersion；It is as follows：
A. data are extracted：High-speed camera is mounted on the position on nozzle spray axis, respectively to each position
It sets and carries out corresponding operating mode spray shooting, graphics process is carried out to the photo of shooting, extracts the spray particle diameter of each position；
B. defined feature grain size：Under corresponding operating mode, the lower limit of the aperture defined feature grain size of corresponding humidity discharging air door is analyzed,
Pass through the buoyancy relation formula F of the volume, drop density and its extraneous gas density contrast of drop in rollerB=(ρl-ρg)Vi, formula
In, ViFor droplet size, ViFor drop density, ρgExtraneous gas density, FBFor the buoyancy that drop is subject to, speed and wind are calculated
The formula of amount
In formula：D is liquid-drop diameter, CDIt is resistance coefficient, obtains the minimum grain size that humidity discharging wind energy siphons away under corresponding conditions, with
The characteristic diameter lower limit of this definition spraying, further according to tobacco leaf to the absorption region of drop, the characteristic diameter upper limit for defining spraying is
800μm；
C. dispersion is defined：In three-dimensional system of coordinate xyz, if nozzle atomization cone angle is α, straight line L is to be atomized in xoy planes
The edge line of cone angle, certain moment one pass through point (x1, 0,0) atomization section h, section radius of circle be r, area Sh, the section
On effective number of drops be it is N number of, the expression formula of spatial cohesion w is defined as：
D. three Divisions are defined：Inlet zone is also known as fracture area, which is characterized in containing irregular big liquid beam, liquid
Region containing big liquid beam, liquid block is defined as inlet zone by block, using spatial cohesion index of the atomizing particle in roller as
As dispersion when partitioning standards using middle tobacco leaf area with the ratio between the roller area of section occupied by characteristic diameter particle are 1
Non-ejection zoning is divided into range of atomization and diffusion region by critical value, to realize inlet zone, the range of atomization of nozzle axial direction injection direction
It is accurately divided with diffusion region, i.e., the blade that average droplet number is less than 1 drop on blade is the tobacco leaf absorbed less than feed liquid, and formula turns
It turns toWherein α1、α2Respectively middle piece and with blade accounting, rectangular shape blade accounting, A is middle blade face
Product, using at certain position in the ratio between piece tobacco leaf area and roller area of section occupied by characteristic diameter particle when being 1 as discrete
Spend critical value, be denoted as y, it is contemplated that the droplet distribution situation on remaining big and small blade, when defining w ＜ y in piece and following blade
It is no longer uniformly shown as being atomized by drop situation uneven, is diffusion region, the spatial distribution of the location point is diffusion boundary point, w
Region zoning when ＞ y is divided into range of atomization.
The big liquid beam is the cylindrical liquid beam that diameter is more than 2mm.
The liquid block is irregular blocky liquid of the grain size more than 2mm.
The FASTCAM Mini UX100 of Photron companies release can be used in the high-speed camera, at image data
The progress of matlab softwares can be used in reason.
Test method of the present invention is the requirement of comprehensive tobacco business tobacco feeding performance study and is designed, by height
Fast video camera, analysis calculate software sharing.The process spraying that can feed through the invention to the nozzle under different operating modes carries out accurate
True tracking and monitoring, and spray process is refined, the key factor of more theoretical understanding spraying charging process.Specify rolling
The key area that throwing fining is influenced in cylinder provides the foundation for further fining research, Instructing manufacture is put into practice, is realized
The transparence of charging process nozzle atomization, this plays tobacco business primary processing line charging process quality control vital
Effect.
The invention has the advantages that：
1, this method can solve the problems, such as the subzone of atomization of nozzle under different operating modes.
2, this method quantifies the atomization process for being difficult to control by way of subregion, more clear announcement spraying
The energy dress of course of injection changes.
3, this method utilizes existing resource reasonable disposition resource, and existing resource reasonable utilization is made to achieve the desired results, and realizes
Environmentally protective theory.
Description of the drawings
Fig. 1 is the atomization space high-speed camera figure of the present invention；
Fig. 2 is the atomization space simulation drawing of the present invention；
Fig. 3 be the present invention three Division schematic diagrames, (a) inlet zone 0-0.405m, (b) range of atomization 0.405-2.255m,
(c) diffusion region>2.255m.
Specific implementation mode
With reference to the accompanying drawings and examples, the present invention is further described, but present disclosure is not limited to the model
It encloses.In the examples where no specific technique or condition is specified, it according to technology or condition described in document in the art or presses
It is carried out according to product description.Reagents or instruments used without specified manufacturer, being can be by buying the conventional production obtained
Product.
Embodiment 1
By taking Yunnan cigar mill production line feed introduction as an example, feed temperature is 55 degree, flow 30kg/h, and air pressure is
When 3.5bar, using the present invention come three Divisions sprayed, process is as follows：
Step 1：Defined feature grain size.Pass through the volume, drop density and its extraneous gas density contrast of drop in roller
Buoyancy relation formula FB=(ρl-ρg)Vi, in formula, ViFor droplet size, ViFor drop density, ρgExtraneous gas density, FBFor drop
The buoyancy being subject to.Calculate the formula of speed and air quantity
It is 39.593 μm of grain size to obtain the critical spraying under the conditions of roller moisture removal aperture is 20%, i.e., is sprayed under corresponding conditions
Droplet diameter, which is 39.593 μm and spraying below, to be siphoned away by humidity discharging wind, and in order to facilitate region division, i.e. defined feature grain size is
40μm。
Step 2：Define dispersion.According to nozzle during the work time the basic envelope of its atomized drop in a cone
Characteristic, atomization space distribution signal is indicated by Fig. 1.In order to describe drop space distribution, with feature liquid
Drip three Divisions that spatial cohesion carries out the atomization space of roller.
In three-dimensional system of coordinate xyz as shown in Figure 2, if nozzle atomization cone angle is α, straight line L is atomizer (atomizing) cone in xoy planes
The edge line at angle, certain moment one pass through point (x1, 0,0) atomization section h, section radius of circle be r, area Sh, on the section
Effective number of drops be it is N number of.The expression formula of spatial cohesion w is defined as：
Step 3：Define three Divisions.Choose spatial spreading of the feed liquid atomizing particle of 40 μm of -800 μm of grain sizes in roller
It spends index and is used as partitioning standards, when with the ratio between the roller area of section occupied by middle tobacco leaf area and characteristic diameter particle being 1
As dispersion critical value, i.e. dispersion is 1290/m2, non-ejection zoning is divided into range of atomization and diffusion region, to realize
Inlet zone, range of atomization and the diffusion region of nozzle axial direction injection direction accurately divide.Average droplet number is less than 1 drop i.e. on blade
Blade is the tobacco leaf absorbed less than feed liquid, and formula is converted intoWherein α1、α2It respectively middle piece and is accounted for blade
Than, rectangular shape blade accounting, A is middle blade area, then w=1292.71, it is contemplated that the droplet distribution on remaining big and small blade
Situation, when defining w ＜ 1290 in piece and following blade no longer uniformly shown as being atomized by drop situation it is uneven, for diffusion
Area, the spatial distribution of the location point are diffusion boundary point, and region zoning when w ＞ 1290 is divided into range of atomization.W=1299 is brought into
Dispersion formulaIn conjunction with the grain size number N that each section is extracted, jet expansion axis under the operating mode is calculated
Linear distance xiValue, xiTo be range of atomization, x when 0.405-2.255 meters (m)iSpray area more than 2.255 meters (m) is diffusion
Area.As shown in figure 3, inlet zone is also known as fracture area, which is characterized in containing irregular big liquid beam, liquid experimental result
Block, will contain that this kind of (grain size is irregular more than 200 μm containing big liquid beam (diameter be more than 200 μm of cylindrical liquid beam), liquid block
Blocky liquid) region be defined as inlet zone, the fracture area x testediValue range be 0-0.405 meters (m).
The specific implementation mode of the present invention is explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned
Embodiment, within the knowledge of a person skilled in the art, under the premise of invention objective can also not departed from
Various changes can be made.
Claims (5)
1. a kind of method of three Division of tobacco feeding nozzle spray, it is characterised in that carry out according to the following steps：
A. data are extracted：High-speed camera is mounted on position on nozzle spray axis, respectively to each position into
The corresponding operating mode spray shooting of row, carries out graphics process to the photo of shooting, extracts the spray particle diameter of each position；
B. defined feature grain size：Under corresponding operating mode, the lower limit of the aperture defined feature grain size of corresponding humidity discharging air door is analyzed, is passed through
The buoyancy relation formula F of the volume, drop density of drop and its extraneous gas density contrast in rollerB=(ρl-ρg)Vi, in formula, Vi
For droplet size, ViFor drop density, ρgExtraneous gas density, FBFor the buoyancy that drop is subject to, speed and the public affairs of air quantity are calculated
Formula
In formula：D is liquid-drop diameter, CDIt is resistance coefficient, obtains the minimum grain size that humidity discharging wind energy siphons away under corresponding conditions, it is fixed with this
The characteristic diameter lower limit of justice spraying, further according to tobacco leaf to the absorption region of drop, the characteristic diameter upper limit for defining spraying is 800 μ
m；
C. dispersion is defined：In three-dimensional system of coordinate xyz, if nozzle atomization cone angle is α, straight line L is to be atomized cone angle in xoy planes
Edge line, certain moment one passes through point (x1, 0,0) atomization section h, section radius of circle be r, area Sh, on the section
Effective number of drops is N number of, and the expression formula of spatial cohesion w is defined as：
D. three Divisions are defined：Inlet zone is also known as fracture area, which is characterized in containing irregular big liquid beam, liquid block,
Region containing big liquid beam, liquid block is defined as inlet zone, using spatial cohesion index of the atomizing particle in roller as draw
Face as dispersion when point foundation using middle tobacco leaf area with the ratio between the roller area of section occupied by characteristic diameter particle is 1
Non-ejection zoning is divided into range of atomization and diffusion region by dividing value, to realize the inlet zone of nozzle axial direction injection direction, range of atomization with
Diffusion region accurately divides, i.e., the blade that average droplet number is less than 1 drop on blade is the tobacco leaf absorbed less than feed liquid, formula conversion
ForWherein α1、α2Respectively middle piece and with blade accounting, rectangular shape blade accounting, A is middle blade area,
Face as dispersion when the ratio between piece tobacco leaf area and roller area of section occupied by characteristic diameter particle are 1 in using at certain position
Dividing value is denoted as y, it is contemplated that the droplet distribution situation on remaining big and small blade, when defining w ＜ y in piece and following blade by liquid
Drop situation no longer uniformly shows as being atomized uneven, is diffusion region, and the spatial distribution of the location point is diffusion boundary point, when w ＞ y
Region zoning be divided into range of atomization.
2. the method for three Division of tobacco feeding nozzle spray according to claim 1, it is characterised in that the big liquid beam is
Diameter is more than the cylindrical liquid beam of 2mm.
3. the method for three Division of tobacco feeding nozzle spray according to claim 1, it is characterised in that the liquid block is grain
Irregular blocky liquid of the diameter more than 2mm.
4. the method for three Division of tobacco feeding nozzle spray according to claim 1, it is characterised in that xiFor 0.405-
It is range of atomization, x when 2.255 meters (m)iSpray area more than 2.255 meters (m) is diffusion region, xiTo be broken when 0-0.405 meters (m)
Broken area.
5. the method for three Division of tobacco feeding nozzle spray according to claim 1, it is characterised in that the high speed is taken the photograph
Camera uses the FASTCAM Mini UX100 that Photron companies release, image real time transfer to be carried out using matlab softwares.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291361.4A CN108311314A (en) | 2018-03-30 | 2018-03-30 | A kind of method of three Division of tobacco feeding nozzle spray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291361.4A CN108311314A (en) | 2018-03-30 | 2018-03-30 | A kind of method of three Division of tobacco feeding nozzle spray |
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| CN108311314A true CN108311314A (en) | 2018-07-24 |
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| CN201810291361.4A Pending CN108311314A (en) | 2018-03-30 | 2018-03-30 | A kind of method of three Division of tobacco feeding nozzle spray |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6263881B1 (en) * | 1998-09-29 | 2001-07-24 | Brown & Williamson Tobacco Corporation | Apparatus for applying a liquid medium to tobacco |
| JP5548819B2 (en) * | 2011-04-28 | 2014-07-16 | 日本たばこ産業株式会社 | Tobacco raw material processing equipment |
| CN104095283A (en) * | 2014-07-07 | 2014-10-15 | 厦门烟草工业有限责任公司 | Tobacco flavoring and charging equipment and method for arranging spray nozzles |
| CN104792643A (en) * | 2015-01-27 | 2015-07-22 | 邸生才 | Feeding /perfuming material liquid content uniformity on-line measuring instrument and on-line control system |
| CN105614939A (en) * | 2015-12-31 | 2016-06-01 | 山东中烟工业有限责任公司 | Method used for improving quality stability of tobacco flavoring |
| CN206101567U (en) * | 2016-08-31 | 2017-04-19 | 云南中烟工业有限责任公司 | Detect reinforced in -process material liquid spray ization movement track's of tobacco leaf device |
-
2018
- 2018-03-30 CN CN201810291361.4A patent/CN108311314A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6263881B1 (en) * | 1998-09-29 | 2001-07-24 | Brown & Williamson Tobacco Corporation | Apparatus for applying a liquid medium to tobacco |
| JP5548819B2 (en) * | 2011-04-28 | 2014-07-16 | 日本たばこ産業株式会社 | Tobacco raw material processing equipment |
| CN104095283A (en) * | 2014-07-07 | 2014-10-15 | 厦门烟草工业有限责任公司 | Tobacco flavoring and charging equipment and method for arranging spray nozzles |
| CN104792643A (en) * | 2015-01-27 | 2015-07-22 | 邸生才 | Feeding /perfuming material liquid content uniformity on-line measuring instrument and on-line control system |
| CN105614939A (en) * | 2015-12-31 | 2016-06-01 | 山东中烟工业有限责任公司 | Method used for improving quality stability of tobacco flavoring |
| CN206101567U (en) * | 2016-08-31 | 2017-04-19 | 云南中烟工业有限责任公司 | Detect reinforced in -process material liquid spray ization movement track's of tobacco leaf device |
Non-Patent Citations (2)
| Title |
|---|
| （美）阿诺德（ARNOLD，KEN）: "《油气田地面处理工艺》", 30 April 1993, 石油工业出版社 * |
| 曾静: "片烟叶面积分布", 《烟草科技》 * |
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Application publication date: 20180724 |
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