CN111165862A - Method and device for controlling flow of cut tobacco before sublimation of expanded cut tobacco - Google Patents
Method and device for controlling flow of cut tobacco before sublimation of expanded cut tobacco Download PDFInfo
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- CN111165862A CN111165862A CN202010138887.6A CN202010138887A CN111165862A CN 111165862 A CN111165862 A CN 111165862A CN 202010138887 A CN202010138887 A CN 202010138887A CN 111165862 A CN111165862 A CN 111165862A
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- dry ice
- cut tobacco
- tobacco
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/18—Other treatment of leaves, e.g. puffing, crimpling, cleaning
Abstract
The embodiment of the invention provides a method for controlling the flow of cut tobacco before sublimation of expanded cut tobacco, which comprises the steps of measuring the weight W of dry ice cut tobacco and the preset flow F of dry ice tobacco, substituting the measured weight W of dry ice cut tobacco and the preset flow F of dry ice tobacco into a first preset formula to obtain the time T, substituting the time T into a second preset formula, obtaining the frequency FQ by using the preset total frequency FQT as a set constant, and controlling the operation of a quantitative belt by using the frequency FQ. According to the embodiment of the invention, the frequency FQ is controlled by acquiring the real-time dry ice tobacco weight W, and the operation of the quantitative belt is controlled through the frequency FQ, so that the real-time control on the operation of the quantitative belt is realized. The control mode of the quantitative FQ with the frequency provided by the embodiment of the invention realizes the conversion from manual adjustment to automatic control, and reduces the intensity of manual labor; the stability of the dry ice tobacco shred flow before sublimation is effectively improved, and the tobacco shred flow and the water stability after sublimation are also obviously improved.
Description
Technical Field
The invention belongs to the technical field of carbon dioxide tobacco shred expansion, and particularly relates to a method and a device for controlling tobacco shred flow before expanded tobacco shred sublimation.
Background
The carbon dioxide tobacco shred expansion technology (DIET expansion) can be roughly classified into 3 types, namely, a type a of the american ericco industrial gas company (AIRCO), a type B of the british and american tobacco company (BAT), and a type C of the qinhuang tobacco machinery limited company. The basic technological principle of the technology is that liquid carbon dioxide is used for soaking cut tobacco, dry ice is formed inside and on the surface of the cut tobacco, the dry ice cut tobacco is rapidly sucked into a sublimation pipe through a venturi tube, and the dry ice is rapidly sublimated into gaseous carbon dioxide in hot air flow at about 330 ℃, so that the cut tobacco is promoted to expand. The expanded tobacco shreds are cooled, shaped and remoistened to form finished tobacco shreds which can be directly blended.
Due to the low temperature of the dry ice tobacco shreds, condensed water and ice are easily condensed on the conveyor belt, and the belt is frequently required to be flushed with water. Therefore, under the severe working environment, the A-type and the C-type adopt a quantitative belt (a special conveying device with a frequency converter) to control the flow of the dry ice and the cut tobacco, and only the B-type adopts a special electronic belt scale to control the flow of the dry ice and the cut tobacco. Stability and the stability of sublimating back pipe tobacco moisture stability of the stability direct influence sublimation section pipe tobacco processing strength of dry ice pipe tobacco flow, and the ration area is only the conveying equipment who takes the converter, does not possess the flow control function, so the dry ice pipe tobacco flow of quantitative area output often takes place undulantly, leads to sublimating back pipe tobacco flow, moisture unstability. Therefore, in order to improve the stability of the flow of the formula a and the formula C dry ice cut tobacco, a new solution is required to be found.
And (3) conveying the quantitative cut tobacco with the water content of 20-22% into an impregnator through a belt conveyor, and fully soaking the cut tobacco in the impregnator through carbon dioxide liquid to form dry ice cut tobacco. The dry ice tobacco shreds fall into the vibration bin after being loosened by the opener and are temporarily stored in the vibration bin. The temporarily stored cut tobacco is conveyed to an expansion system through a feeding system consisting of a vibration bin and a quantitative belt, so that the dry ice cut tobacco is continuously conveyed from intermittent batch feeding. The dry ice tobacco shreds are sublimated and cooled and then enter an electronic belt scale, the electronic belt scale is a control scale, namely rated flow is set, and the belt scale automatically adjusts the belt speed according to the quantity of supplied materials to ensure that the tobacco shred flow is the preset rated value. The tobacco shreds with constant flow rate controlled enter storage cabinet after RC-80 feeding, moisture regaining and air separation, and the production process is schematically shown in figure 1.
Because the temperature of the discharge hole of the vibration bin is low, the dry ice cut tobacco is adhered to the inner wall of the discharge hole frequently, the output cut tobacco quantity is unstable, and the time for conveying the dry ice cut tobacco from the quantitative belt outlet to the electronic belt scale is about 2min, so that the hysteresis and the uncertainty are fully filled by manually adjusting the frequency of the quantitative belt to control the flow of the dry ice cut tobacco. In actual production, the flow of the sublimed cut tobacco is fluctuated frequently and has long duration, and the moisture of the cut tobacco is fluctuated continuously between 4.5 and 7.5 percent. Because the production of a batch of hot ends of expanded cut tobacco takes about 4 hours, the task of ensuring the flow and the water stability of the cut tobacco after sublimation by only manually adjusting the frequency of the quantitative band is almost impossible to be completed.
Disclosure of Invention
The invention provides a method for controlling the flow of cut tobacco before sublimation of expanded cut tobacco, which solves the technical problem of adjusting the frequency of a quantitative band to ensure the stability of the flow and the moisture of the cut tobacco after biochemical treatment.
The invention provides a method for controlling the flow of cut tobacco before expanded cut tobacco sublimes, which comprises the following steps:
calculating the weight of the dry ice tobacco shreds on the quantitative belt through measurement to obtain the weight W of the dry ice tobacco shreds on the quantitative belt;
according to a first preset formula and a preset flow F of the dry ice cut tobacco on the quantitative belt, acquiring time T for sending the dry ice cut tobacco with the weight W of the dry ice cut tobacco out of the quantitative belt, wherein the first preset formula is as follows:
obtaining the frequency FQ of the quantitative band frequency converter according to a second preset formula and the preset total frequency FQT of the quantitative band frequency converter in the time T, wherein the second preset formula is as follows:
and controlling the flow of the dry ice tobacco shreds on the quantitative belt according to the frequency FQ of the quantitative belt frequency conversion.
Preferably, the setting of the preset total frequency FQT is specifically:
setting multiple initial frequencies FQ1And measuring the time T from the beginning of the dry ice cut tobacco to the delivery of the quantitative belt1Obtaining a plurality of initial total frequencies FQT through the second preset formula1；
By calculating a plurality of said initial total frequencies FQT1Obtaining the preset total frequency FQT.
Preferably, the manner of measuring the weight of the dry ice tobacco shred on the quantitative belt comprises the following steps:
judging whether the opener operates, if not, measuring and calculating the weight change of the dry ice cut tobacco in the vibration bin through a sensor on the vibration bin to obtain the weight W of the dry ice cut tobacco on the quantitative belt;
and if the opener is operated, acquiring the average weight AW of the quantitative dry ice cut tobacco with dry ice according to the total weight of the quantitative dry ice cut tobacco with dry ice, and acquiring the weight W of the quantitative dry ice cut tobacco with dry ice according to the average weight AW of the quantitative dry ice cut tobacco with dry ice.
Preferably, the measurement and calculation of the weight of the dry ice cut tobacco in the vibration bin through the sensor on the vibration bin is specifically that the weight of the dry ice cut tobacco in the vibration bin measured by the sensor is W1After the interval time T, the sensor measures that the weight of the dry ice cut tobacco in the vibration bin is W2SaidThe weight W of the dry ice cut tobacco on the quantitative belt is W1-W2。
Preferably, the average weight AW of the dry ice tobacco shred on the quantitative band is equal to the weight W of the dry ice tobacco shred on the quantitative band.
Preferably, a weighing device is additionally arranged on the quantitative belt.
Preferably, the measuring and calculating the weight of the dry ice tobacco shred on the quantitative belt further comprises: and monitoring the weight of the dry ice cut tobacco on the quantitative belt in real time through a weighing device on the quantitative belt to obtain the weight W of the dry ice cut tobacco on the quantitative belt.
Preferably, substituting the first preset formula into the second preset formula obtains:
preferably, the time T from the beginning of the dry ice cut tobacco to the delivery of the dosing strip1Measured directly by a stopwatch.
The embodiment of the invention also provides a device for controlling the flow of the expanded cut tobacco before sublimation, which comprises:
a weight acquisition module: the device is used for measuring the weight of the dry ice cut tobacco on the quantitative belt to obtain the weight W of the dry ice cut tobacco;
a time acquisition module: according to a first preset formula and a preset flow F of the dry ice cut tobacco on the quantitative belt, acquiring time T from the beginning to the sending out of the quantitative belt of the dry ice cut tobacco with the weight W, wherein the first preset formula is as follows:
a frequency acquisition module: acquiring the frequency FQ of the quantitative belt frequency converter according to a second preset formula and the preset total frequency FQT of the quantitative belt frequency converter in the dry ice tobacco from the beginning to the sending-out of the dry ice tobacco, wherein the second preset formula is as follows:
a control module: and controlling the flow of the dry ice tobacco shreds on the quantitative belt according to the frequency FQ of the quantitative belt frequency conversion.
According to the technical scheme, the embodiment of the invention has the following advantages:
the embodiment of the invention provides a method for controlling the flow of cut tobacco before sublimation of expanded cut tobacco, which comprises the steps of measuring the weight W of dry ice cut tobacco and the preset flow F of dry ice tobacco, substituting the measured weight W of dry ice cut tobacco and the preset flow F of dry ice tobacco into a first preset formula to obtain the time T, substituting the time T into a second preset formula, obtaining the frequency FQ by using the preset total frequency FQT as a set constant, and controlling the operation of a quantitative belt by using the frequency FQ. According to the embodiment of the invention, the frequency FQ is controlled by acquiring the real-time dry ice tobacco weight W, and the operation of the quantitative belt is controlled through the frequency FQ, so that the real-time control on the operation of the quantitative belt is realized. The control mode of the quantitative FQ with the frequency provided by the embodiment of the invention realizes the conversion from manual adjustment to automatic control, and reduces the intensity of manual labor; the stability of the dry ice tobacco shred flow before sublimation is effectively improved, and the tobacco shred flow and the water stability after sublimation are also obviously improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic flow chart of a background art of a method for controlling flow of cut tobacco before sublimation of expanded cut tobacco according to an embodiment of the present invention;
fig. 2 is a block diagram of a method for controlling flow of cut tobacco before sublimation of expanded cut tobacco according to an embodiment of the present invention;
fig. 3 is a block diagram of a flow control device for cut tobacco before sublimation of expanded cut tobacco according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a method for controlling the flow of cut tobacco before sublimation of expanded cut tobacco, which is used for solving the technical problem of adjusting the frequency of a quantitative band to ensure the flow and the water stability of the cut tobacco after biochemical treatment.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, a method for controlling flow of cut tobacco before sublimation of expanded cut tobacco according to an embodiment of the present invention includes the following steps:
101: obtaining the weight W of the dry ice tobacco shreds by measuring the weight of the dry ice tobacco shreds on the quantitative belt;
the mode for measuring and calculating the weight of the dry ice tobacco shreds on the quantitative belt comprises the following steps:
judging whether the opener operates, if not, measuring and calculating the weight change of the dry ice cut tobacco in the vibration bin through a sensor on the vibration bin to obtain the weight W of the dry ice cut tobacco on the quantitative belt;
and if the opener is operated, acquiring the average weight AW of the quantitative dry ice cut tobacco with dry ice according to the total weight of the quantitative dry ice cut tobacco with dry ice, and acquiring the weight W of the quantitative dry ice cut tobacco with dry ice according to the average weight AW of the quantitative dry ice cut tobacco with dry ice.
And detecting and calculating the weight of the dry ice tobacco shreds on the quantitative belt in different modes by judging whether the opener operates. When the opener is not operated, namely the dry ice tobacco in the vibration bin is fixed, the weight of the dry ice tobacco in the vibration bin can be changedThe method is characterized in that the weight of dry ice tobacco which is determined to fall on a quantitative belt is measured and calculated through a sensor on a vibration bin, namely the weight of the dry ice tobacco in the vibration bin is measured and calculated through the sensor, specifically, the weight of the dry ice tobacco in the vibration bin is measured and calculated through the sensor1After the interval time T, the sensor measures that the weight of the dry ice cut tobacco in the vibration bin is W2The weight W of the dry ice cut tobacco on the quantitative belt is W1-W2。
When the opener operates, dry ice tobacco from an impregnator falls into the vibration bin, namely, at the moment, the weight of the dry ice tobacco in the vibration bin is changed, the weight average value AW of quantitative dry ice cut tobacco in the belt is obtained through calculation and statistics during normal production, and under the normal condition, the average weight AW of the dry ice cut tobacco in the belt is equal to the weight W of the dry ice cut tobacco in the belt.
In addition, a weighing device is additionally arranged on the quantitative belt. Directly measuring the weight W of the dry ice tobacco shreds by installing the weighing device on a quantitative belt, specifically, the measuring and calculating the weight of the dry ice tobacco shreds on the quantitative belt further comprises: and monitoring the weight of the dry ice cut tobacco on the quantitative belt in real time through a weighing device on the quantitative belt to obtain the weight W of the dry ice cut tobacco on the quantitative belt. The dry ice tobacco weight W is directly measured in real time, but because the quantitative belt is in motion, errors such as vibration exist, and the measured dry ice tobacco weight W is not accurate.
102: according to a first preset formula and a preset flow F of the dry ice cut tobacco on the quantitative belt, acquiring time T from the beginning to the sending out of the quantitative belt of the dry ice cut tobacco with the weight W, wherein the first preset formula is as follows:
103: acquiring the frequency FQ of the quantitative belt frequency converter according to a second preset formula and the preset total frequency FQT of the quantitative belt frequency converter in the dry ice tobacco from the beginning to the sending-out of the dry ice tobacco, wherein the second preset formula is as follows:
in the embodiment, the linear velocity of the quantitative belt is proportional to the angular velocity of the driving shaft, the angular velocity of the driving shaft is proportional to the rotation speed of the motor, and the rotation speed of the motor is proportional to the frequency of the motor (i.e. the actual operating frequency fed back by the frequency converter, hereinafter referred to as the frequency FQ of the frequency converter). Therefore, the linear speed of the quantitative belt is proportional to the frequency of the frequency converter. That is, calculating the belt stroke by a fixed amount may be changed to calculating the preset total frequency FQT ═ FQ × T.
The setting of the preset total frequency FQT is specifically as follows:
setting multiple initial frequencies FQ1And measuring the initial frequency FQ1Corresponding time T1Obtaining a plurality of initial total frequencies FQT through the second preset formula1；
By calculating a plurality of said initial total frequencies FQT1Obtaining the preset total frequency FQT of the quantitative frequency converter. The preset total frequency FQT is an initial total frequency FQT obtained by carrying out multiple experiments and then carrying out value taking1I.e. the preset total frequency FQT is a constant determined after calculation.
104: and controlling the flow of the dry ice tobacco shreds on the quantitative belt according to the frequency FQ of the quantitative belt frequency conversion.
In the embodiment, the linear velocity of the quantitative belt is proportional to the angular velocity of the driving shaft, the angular velocity of the driving shaft is proportional to the rotation speed of the motor, and the rotation speed of the motor is proportional to the frequency of the motor (i.e. the actual operating frequency fed back by the frequency converter, hereinafter referred to as the frequency FQ of the frequency converter). Therefore, the linear speed of the quantitative belt is proportional to the frequency of the frequency converter. That is, the calculation of the stroke of the fixed belt may be changed to the calculation of the preset total frequency FQT ═ FQ × T, and the first preset formula is substituted into the second preset formula to obtain:
in the obtained formula, the preset total frequency FQT is a constant which is obtained through experimental calculation and is set in the method of the embodiment, the preset flow F of the dry ice tobacco is a parameter set by people, the independent variable existing in the formula is the weight W of the dry ice tobacco, and the dependent variable is the frequency FQ, namely the frequency FQ is controlled in real time through the weight W of the dry ice tobacco measured in real time, so that the change from manual adjustment to automatic control is realized through the control mode of the frequency FQ in the quantitative band, and the intensity of manual labor is reduced; the stability of the dry ice tobacco shred flow before sublimation is effectively improved, and the tobacco shred flow and the water stability after sublimation are also obviously improved.
As shown in fig. 3, an embodiment of the present invention further provides a device for controlling flow of cut tobacco before sublimation of expanded cut tobacco, where the device includes:
the weight acquisition module 201: the device is used for measuring the weight of the dry ice cut tobacco on the quantitative belt to obtain the weight W of the dry ice cut tobacco;
the time acquisition module 202: according to a first preset formula and a preset flow F of the dry ice cut tobacco on the quantitative belt, acquiring time T from the beginning to the sending out of the quantitative belt of the dry ice cut tobacco with the weight W, wherein the first preset formula is as follows:
the frequency acquisition module 203: acquiring the frequency FQ of the quantitative belt frequency converter according to a second preset formula and the preset total frequency FQT of the quantitative belt frequency converter in the dry ice tobacco from the beginning to the sending-out of the dry ice tobacco, wherein the second preset formula is as follows:
the control module 204: and controlling the flow of the dry ice tobacco shreds on the quantitative belt according to the frequency FQ of the quantitative belt frequency conversion.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only a logical division of the flow control method for the expanded cut tobacco before sublimation, and the actual implementation may have another division manner, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for controlling the flow of cut tobacco before expanded cut tobacco sublimes is characterized by comprising the following steps:
obtaining the weight W of the dry ice tobacco shreds by measuring the weight of the dry ice tobacco shreds on the quantitative belt;
according to a first preset formula and a preset flow F of the dry ice cut tobacco on the quantitative belt, acquiring time T from the beginning to the sending out of the quantitative belt of the dry ice cut tobacco with the weight W, wherein the first preset formula is as follows:
acquiring the frequency FQ of the quantitative belt frequency converter according to a second preset formula and the preset total frequency FQT of the quantitative belt frequency converter from the beginning to the sending-out of the dry ice cut tobacco, wherein the second preset formula is as follows:
and controlling the flow of the dry ice tobacco shreds on the quantitative belt according to the frequency FQ of the quantitative belt frequency converter.
2. The method for controlling the flow of the cut tobacco before the sublimation of the expanded cut tobacco according to claim 1, wherein the preset total frequency FQT is specifically set as follows:
setting multiple initial frequencies FQ1And measuring the time T from the beginning of the dry ice cut tobacco to the delivery of the quantitative belt1Obtaining a plurality of initial total frequencies FQT through the second preset formula1；
By calculating a plurality of said initial total frequencies FQT1Obtaining the preset total frequency FQT.
3. The method for controlling the flow of the cut tobacco before the sublimation of the expanded cut tobacco according to claim 2, wherein the manner of measuring the weight of the dry ice cut tobacco on the quantitative belt comprises the following steps:
judging whether the opener operates, if not, measuring and calculating the weight change of the dry ice cut tobacco in the vibration bin through a sensor on the vibration bin to obtain the weight W of the dry ice cut tobacco on the quantitative belt;
and if the opener is operated, acquiring the average weight AW of the quantitative dry ice cut tobacco with dry ice according to the total weight of the quantitative dry ice cut tobacco with dry ice, and acquiring the weight W of the quantitative dry ice cut tobacco with dry ice according to the average weight AW of the quantitative dry ice cut tobacco with dry ice.
4. The method for controlling the flow of the cut tobacco before the sublimation of the expanded cut tobacco according to claim 3, wherein the measurement and calculation of the weight of the dry ice cut tobacco in the vibration bin through the sensor on the vibration bin is specifically carried out by the sensor measuring that the weight of the dry ice cut tobacco in the vibration bin is W1After the interval time T, the sensor measures that the weight of the dry ice cut tobacco in the vibration bin is W2The weight W of the dry ice cut tobacco on the quantitative belt is W1-W2。
5. The method for controlling flow of cut tobacco before sublimation of expanded cut tobacco according to claim 4, wherein the average weight AW of the dry ice cut tobacco on the quantitative belt is equal to the weight W of the dry ice cut tobacco on the quantitative belt.
6. The method for controlling the flow of the cut tobacco before the sublimation of the expanded cut tobacco according to claim 2, wherein a weighing device is additionally arranged on the quantitative belt.
7. The method for controlling the flow of the cut tobacco before the sublimation of the expanded cut tobacco according to claim 6, wherein the measuring and calculating the weight of the dry ice cut tobacco on the quantitative belt further comprises: and monitoring the weight of the dry ice tobacco shreds on the quantitative belt in real time through a weighing device on the quantitative belt to obtain the weight W of the dry ice tobacco shreds on the quantitative belt.
8. The method for controlling the flow of the cut tobacco before the expanded cut tobacco sublimes according to claim 7, wherein the first preset formula is substituted into the second preset formula to obtain:
9. the method according to claim 8, wherein the time T from the beginning of the dry ice cut tobacco to the sending of the quantitative belt is the time T of the dry ice cut tobacco before sublimation1Measured directly by a stopwatch.
10. The utility model provides a pipe tobacco flow control device before expanded tobacco sublimes which characterized in that: the device comprises:
a weight acquisition module: the device is used for measuring the weight of the dry ice cut tobacco on the quantitative belt to obtain the weight W of the dry ice cut tobacco;
a time acquisition module: according to a first preset formula and a preset flow F of the dry ice cut tobacco on the quantitative belt, acquiring time T from the beginning to the sending out of the quantitative belt of the dry ice cut tobacco with the weight W, wherein the first preset formula is as follows:
a frequency acquisition module: acquiring the frequency FQ of the quantitative belt frequency converter according to a second preset formula and the preset total frequency FQT of the quantitative belt frequency converter in the dry ice tobacco from the beginning to the sending-out of the dry ice tobacco, wherein the second preset formula is as follows:
a control module: and controlling the flow of the dry ice tobacco shreds on the quantitative belt according to the frequency FQ of the quantitative belt frequency conversion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010138887.6A CN111165862A (en) | 2020-03-03 | 2020-03-03 | Method and device for controlling flow of cut tobacco before sublimation of expanded cut tobacco |
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| CN202010138887.6A CN111165862A (en) | 2020-03-03 | 2020-03-03 | Method and device for controlling flow of cut tobacco before sublimation of expanded cut tobacco |
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| CN105523368A (en) * | 2015-12-31 | 2016-04-27 | 中国神华能源股份有限公司 | Full-automatic tippler feeding method and system |
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|---|---|---|---|---|
| CN1733575A (en) * | 2005-06-22 | 2006-02-15 | 龙岩卷烟厂 | Material flow detecting and controlling method under special environment |
| CN101103838A (en) * | 2007-04-04 | 2008-01-16 | 罗放明 | Device for cigarette thread-making loosening moisture-regaining tube tobacco slice feeding flow control |
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