CN115005477A - Device for controlling moisture at outlet of super damping machine for cigarettes and working method - Google Patents
Device for controlling moisture at outlet of super damping machine for cigarettes and working method Download PDFInfo
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- CN115005477A CN115005477A CN202210566448.4A CN202210566448A CN115005477A CN 115005477 A CN115005477 A CN 115005477A CN 202210566448 A CN202210566448 A CN 202210566448A CN 115005477 A CN115005477 A CN 115005477A
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- 238000013016 damping Methods 0.000 title claims abstract description 26
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 252
- 241000208125 Nicotiana Species 0.000 claims abstract description 91
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 91
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000013589 supplement Substances 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims 1
- 239000008213 purified water Substances 0.000 claims 1
- 230000009977 dual effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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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
- A24B3/04—Humidifying or drying tobacco bunches or cut 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
- A24B9/00—Control of the moisture content of tobacco products, e.g. cigars, cigarettes, pipe tobacco
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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
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
The invention provides a device and a working method for controlling moisture at an outlet of a super damping machine for cigarettes, which comprises a water supply system, a heating system, a front chamber water adding system, a rear chamber water adding system, a steam pipeline and a PLC (programmable logic controller), wherein the device calculates the leaf shred flow and the leaf shred moisture when the leaf shreds reach the inlet, the middle part and the outlet of the super damping roller by acquiring the moisture data of the leaf shreds at the inlet and the outlet of the super damping roller and calculating the water adding flow of the leaf shreds at the inlet of the super damping roller, adds water at the inlet, calculates the water adding flow of the leaf shreds according to the moisture data of the leaf shreds at the outlet and combining with technological requirement parameters when the leaf shreds reach the outlet of the super damping roller, and supplements water at the outlet, so that the problem that the existing water adding system of the super damping machine has larger hysteresis in the adjustment of the leaf shreds is solved, the fluctuation of the moisture of the outlet cut tobacco is large and unstable, and the control of the moisture at the outlet of the dryer is seriously influenced.
Description
Technical Field
The invention relates to the technical field of cigarette shredding, in particular to a device for controlling moisture at an outlet of a super moisture regaining machine for cigarettes and a working method.
Background
The super moisture regaining machine for cigarettes is a main device in a tobacco-making thread, is usually matched with a cut tobacco expansion dryer for use, heats and humidifies cut tobacco leaves, and is convenient for the dryer to quickly dehydrate, expand and shape.
The water supply system of the super damping machine generally adopts a water tank to supply water, a gear pump is used for pressurizing (or a pneumatic film valve) and is used for injecting water by steam through a roller inlet nozzle, however, because the inlet moisture is greatly influenced by the previous process (generally, a charging process), weather, seasons, machining intervals and the like, the cylinder of the super damping machine is usually long, the outlet moisture meter is used for detecting large hysteresis, the fluctuation of the outlet cut tobacco moisture is large, and the control of the outlet moisture of the drying machine is seriously influenced.
Disclosure of Invention
The embodiment of the invention provides a device for controlling moisture at an outlet of a super damping roller for cigarettes and a working method thereof, which are characterized in that by acquiring moisture data of cut tobacco at an inlet and an outlet of the super damping roller, meanwhile, the flow data of the cut tobacco at the inlet of the super dampening roller is obtained, the cut tobacco flow and the cut tobacco moisture when the cut tobacco reaches the inlet, the middle part and the outlet of the super dampening roller are calculated, the flow of adding water to the cut tobacco at the inlet of the super dampening roller is calculated, adding water at the inlet, calculating water adding flow rate of the cut tobacco according to the water data of the cut tobacco at the outlet and technological requirement parameters when the cut tobacco reaches the outlet of the super dampening roller, carry out the moisturizing in the exit, solved the export moisture meter that current super damping machine water feeding system exists and detected and have great hysteresis quality, export moisture fluctuation is great, and is unstable, seriously influences the problem of the control of desiccator export moisture.
In view of the above problems, the technical solution proposed by the present invention is:
a super damping machine outlet moisture control device for cigarettes comprises a super damping roller, wherein an inlet moisture meter is arranged at an inlet of the super damping roller, an outlet moisture meter and a water supply system are arranged at an outlet of the super damping roller, and the water supply system comprises a water tank, a liquid level meter, a first angle valve and a filter;
the input end of the first angle valve is communicated with a water source through a pipeline, the filter is arranged between the first angle valve and the water source, and the output end of the first angle valve is communicated with the water tank through the pipeline;
the heating system is communicated with the steam pipeline and is used for controlling the water temperature of the water stored in the water tank;
the front chamber water adding system is arranged at an inlet of the super dampening roller, is positioned at the rear side of the inlet moisture meter, is respectively communicated with the water tank and the steam pipeline simultaneously, and is used for adding water to the cut tobacco entering the super dampening roller;
the rear chamber water adding system is arranged at the outlet of the super dampening roller, is positioned at the front side of the outlet moisture meter, is respectively communicated with the water tank and the steam pipeline simultaneously, and is used for adding water to the cut tobacco leaving the super dampening roller;
the outlet moisture control device of the super moisture regain machine for the cigarettes further comprises a PLC, and the PLC is in communication connection with the water supply system, the heating system, the front chamber water adding system, the rear chamber water adding system, the inlet moisture meter and the outlet moisture meter respectively.
In order to better realize the technical scheme of the invention, the following technical measures are also adopted.
Further, heating system includes temperature sensor and second angle valve, temperature sensor set up in the inside of water tank, the inside of water tank passes through second angle valve and steam line intercommunication.
Furthermore, the front chamber water adding system comprises a first variable frequency gear pump, a first overflow valve, a first electromagnetic flowmeter, a first double-medium nozzle and a third angle valve, wherein the input ends of the first variable frequency gear pump and the first overflow valve are simultaneously communicated with one side of the bottom of the water tank through the pipeline, the output ends of the first variable frequency gear pump and the first overflow valve are simultaneously communicated with the input end of the first electromagnetic flowmeter through the pipeline, the first double-medium nozzle is arranged at the inlet of the super dampening roller, and the input end of the first double-medium nozzle is respectively communicated with the steam pipeline through the third angle valve and communicated with the output end of the first electromagnetic flowmeter through the pipeline.
Furthermore, the rear chamber water adding system comprises a second variable frequency gear pump, a second overflow valve, a second electromagnetic flow meter, a second dual-medium nozzle and a fourth angle valve, wherein the input ends of the second variable frequency gear pump and the second overflow valve are simultaneously communicated with the other side of the bottom of the water tank through the pipeline, the output ends of the second variable frequency gear pump and the second overflow valve are simultaneously communicated with the input end of the second electromagnetic flow meter through the pipeline, the second dual-medium nozzle is arranged at the inlet of the super dampening roller, and the input ends of the second dual-medium nozzle are respectively communicated with the steam pipeline through the fourth angle valve and the output end of the second electromagnetic flow meter through the pipeline.
Further, the signal input part of PLC controller respectively with the level gauge temperature sensor first electromagnetic flowmeter second electromagnetic flowmeter the entry moisture meter with the signal output part communication connection of export moisture meter, the signal output part of PLC controller respectively with first angle valve second angle valve third angle valve fourth angle valve first frequency conversion gear pump with the signal input part communication connection of second frequency conversion gear pump.
Furthermore, the water of the water source is pure water, and the pressure of the water source connected with the first angle valve is not lower than 0.3 Mpa.
A working method of a super conditioner outlet moisture control device for cigarettes comprises the following steps:
s1, water source supplement, wherein the liquid level of the water tank is set through the PLC, when the liquid level meter detects that the liquid level of the water tank is lower than the set liquid level, the PLC opens a first angle valve to supplement water into the water tank, a filter is used for filtering water input into the water tank, and when the liquid level of the water tank reaches the set liquid level, the PLC closes the first angle valve;
s2, controlling the water temperature of the water tank, opening a second angle valve by the PLC controller to introduce steam in the steam pipeline into the water tank to heat water when the water source supplement is carried out in the step S1 or the temperature sensor detects that the water temperature is 5 ℃ lower than the set value of the process requirement, and closing the second angle valve after 10 seconds of delay after the set temperature is reached;
s3, calculating the water flow rate from the front chamber, detecting the water data of the cut tobacco at the inlet by the inlet moisture meter, sending the detected data to the PLC, obtaining the flow rate data of the cut tobacco at the inlet by the PLC, calculating the cut tobacco flow rate and the cut tobacco moisture when the cut tobacco reaches the inlet, the middle part and the outlet of the super dampening roller by the PLC according to the water data and the flow rate data of the cut tobacco, and obtaining the water adding flow rate of the cut tobacco at the inlet of the super dampening roller according to the calculation;
s4, adding water into the front chamber, opening a third angle valve by the PLC according to the water adding flow obtained in the step S3, controlling a first variable frequency gear pump to convey water in the water tank to a first dual-medium nozzle by the PLC, mixing and atomizing steam and water in a steam pipeline, adding water into cut tobacco at the inlet of the super dampening roller, and simultaneously collecting flow data through a first electromagnetic flowmeter to control the first variable frequency gear pump;
s5, calculating the water adding flow rate of the back room, detecting the water data of the cut tobacco at the outlet by an outlet moisture meter, sending the detected data to a PLC (programmable logic controller), and calculating the cut tobacco water adding flow rate at the outlet of the super dampening roller by the PLC according to the water data of the cut tobacco;
and S6, adding water into the rear chamber, opening a fourth angle valve by the PLC according to the water adding flow obtained in the step S5, controlling a second variable frequency gear pump to convey water in the water tank to a second dual-medium nozzle by the PLC, mixing and atomizing steam and water in the steam pipeline, adding water into the cut tobacco at the inlet of the super dampening roller, and simultaneously collecting flow data through a second electromagnetic flowmeter to control the second variable frequency gear pump.
Compared with the prior art, the invention has the beneficial effects that: the method comprises the steps of obtaining moisture data of leaf shreds at an inlet and an outlet of a super dampening roller, obtaining flow data of the leaf shreds at the inlet of the super dampening roller, calculating leaf shred flow and leaf shred moisture when the leaf shreds reach the inlet, the middle and the outlet of the super dampening roller, calculating the water adding flow of the leaf shreds at the inlet of the super dampening roller, adding water at the inlet, combining the water data of the leaf shreds at the outlet with technological requirement parameters when the leaf shreds reach the outlet of the super dampening roller, calculating the water adding flow of the leaf shreds, and supplementing water at the outlet.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
FIG. 1 is a schematic structural diagram of a moisture control device at an outlet of a super conditioner for tobacco, which is disclosed by an embodiment of the invention;
FIG. 2 is a communication flow diagram of a super conditioner outlet moisture control device for cigarettes disclosed in the embodiment of the invention;
FIG. 3 is a schematic flow chart of a working method of a super conditioner outlet moisture control device for cigarettes disclosed in an embodiment of the invention;
FIG. 4 is a schematic diagram of a control scheme for adding water to the antechamber according to the embodiment of the present invention;
FIG. 5 is a schematic diagram of a rear chamber water filling control according to an embodiment of the present invention.
Reference numerals: 1. a water supply system; 11. a water tank; 12. a liquid level meter; 13. a first angle valve; 14. a filter; 2. a heating system; 21. a temperature sensor; 22. a second angle valve; 3. a front chamber water adding system; 31. a first variable frequency gear pump; 32. a first overflow valve; 33. a first electromagnetic flow meter; 34. a first dual medium nozzle; 35. a third angle valve; 4. a rear chamber water adding system; 41. a second variable frequency gear pump; 42. a second overflow valve; 43. a second electromagnetic flow meter; 44. a second dual medium nozzle; 45. a fourth angle valve; 5. a steam line; 6. a pipeline; 7. a super dampening roller; 71. an inlet; 72. an outlet; 8. an inlet moisture meter; 9. an outlet moisture meter; 10. a PLC controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to the attached drawings 1-2, a super dampening machine outlet moisture control device for cigarettes comprises a super dampening roller 7, a water supply system 1, a heating system 2, a front chamber water supply system 3 and a rear chamber water supply system 4, wherein an inlet moisture meter 8 is arranged at an inlet 71 of the super dampening roller 7, an outlet moisture meter 9 is arranged at an outlet 72 of the super dampening roller 7, the water supply system 1 comprises a water tank 11, a liquid level meter 12, a first angle valve 13 and a filter 14, an input end of the first angle valve 13 is communicated with a water source through a pipeline 6, water of the water source is pure water, scaling of devices such as the pipeline 6 and a nozzle can be effectively avoided, meanwhile, the pure water is used for processing cut tobacco and is softer water or tap water, the purity of the cut tobacco is higher, the flavor is purer, the pressure of the water source connected with the first angle valve 13 is not lower than 0.3Mpa, the filter 14 is arranged between the first angle valve 13 and the water source, an output end of the first angle valve 13 is communicated with the water tank 11 through the pipeline 6, communicate with steam pipe way 5, a temperature for controlling the inside water that stores of water tank 11, set up in super dampening cylinder 7's entry 71 department, be located the rear side of entry moisture meter 8, communicate with water tank 11 and steam pipe way 5 simultaneously respectively, a leaf silk for getting into super dampening cylinder 7 adds water, set up in super dampening cylinder 7's export 72 department, be located the front side of export moisture meter 9, communicate with water tank 11 and steam pipe way 5 simultaneously respectively, a leaf silk for following leaving super dampening cylinder 7 adds water, super dampening machine export moisture controlling means for cigarette still includes PLC controller 10, PLC controller 10 respectively with water supply system 1, heating system 2, antechamber water adding system 3, after-chamber water adding system 4, entry moisture meter 8 and export moisture meter 9 communication connection.
It should be noted that, after the cut tobacco is detected by the inlet moisture meter 8, the first chamber water adding system 3 adds water to the cut tobacco for the first time, the cut tobacco enters the super dampening roller 7, after the cut tobacco is detected by the outlet moisture meter 9 in the process of leaving the super dampening roller 7, the second water adding system 4 adds water to the cut tobacco for the second time according to the collected water data of the cut tobacco by combining the process parameter requirements, the first chamber and the second chamber are respectively an inlet 71 part and an outlet 72 part inside the super dampening roller 7, the water content of the cut tobacco when the cut tobacco reaches the inlet 71, the middle part and the outlet 72 of the super dampening roller 7 is calculated by obtaining the water data of the cut tobacco at the inlet 71 and the outlet 72 of the super dampening roller 7, the flow rate of adding water to the cut tobacco at the inlet 71 of the super dampening roller 7 is calculated, the water is added at the inlet 71, and when the cut tobacco leaves leave the super dampening roller 7, the water adding flow of the cut tobacco is calculated according to the water data of the cut tobacco at the outlet 72 and the technological requirements, and the water is added through the front chamber and the rear chamber, so that the problems that the water adding amount at the inlet is adjusted after the detection of the outlet moisture meter in the water adding system of the existing super conditioner, the water amount adjustment has large hysteresis, the fluctuation of the moisture of the cut tobacco at the outlet is large, the water is unstable, and the control of the moisture at the outlet of the dryer is seriously influenced are solved.
The embodiment of the invention is also realized by the following technical scheme.
Referring to fig. 1-2, in the embodiment of the present invention, the heating system 2 includes a temperature sensor 21 and a second angle valve 22, the temperature sensor 21 is disposed inside the water tank 11, and the inside of the water tank 11 is communicated with the steam line 5 through the second angle valve 22.
Specifically, when the PLC controller 10 opens the first angle valve 13 to replenish water to the water tank 11 and the temperature sensor 21 detects that the water temperature is lower than the set value 5 ℃ required by the process, the PLC controller 10 opens the second angle valve 22 to introduce steam in the steam pipeline 5 into the water tank 11 to heat the water, and after the set temperature is reached, the second angle valve 22 is closed after a delay of 10 seconds.
Referring to fig. 1-2, the front chamber watering system 3 includes a first variable frequency gear pump 31, a first overflow valve 32, a first electromagnetic flow meter 33, a first two-medium nozzle 34 and a third angle valve 35, wherein input ends of the first variable frequency gear pump 31 and the first overflow valve 32 are simultaneously communicated with one side of the bottom of the water tank 11 through a pipeline 6, output ends of the first variable frequency gear pump 31 and the first overflow valve 32 are simultaneously communicated with an input end of the first electromagnetic flow meter 33 through the pipeline 6, the first two-medium nozzle 34 is disposed at an inlet 71 of the super dampening drum 7, and input ends of the first two-medium nozzle 34 are respectively communicated with the steam pipeline 5 through the third angle valve 35 and the output end of the first electromagnetic flow meter 33 through the pipeline 6.
Referring to fig. 1-2, the rear chamber watering system 4 includes a second variable frequency gear pump 41, a second overflow valve 42, a second electromagnetic flow meter 43, a second dual medium nozzle 44 and a fourth angle valve 45, wherein the input ends of the second variable frequency gear pump 41 and the second overflow valve 42 are simultaneously communicated with the other side of the bottom of the water tank 11 through a pipeline 6, the output ends of the second variable frequency gear pump 41 and the second overflow valve 42 are simultaneously communicated with the input end of the second electromagnetic flow meter 43 through the pipeline 6, the second dual medium nozzle 44 is arranged at the inlet 71 of the super dampening cylinder 7, and the input ends of the second dual medium nozzle 44 are respectively communicated with the steam pipeline 5 through the fourth angle valve 45 and the output end of the second electromagnetic flow meter 43 through the pipeline 6.
Referring to fig. 1-2, signal input ends of the PLC controller 10 are respectively in communication connection with signal output ends of the liquid level meter 12, the temperature sensor 21, the first electromagnetic flow meter 33, the second electromagnetic flow meter 43, the inlet moisture meter 8 and the outlet moisture meter 9, and signal output ends of the PLC controller 10 are respectively in communication connection with signal input ends of the first angle valve 13, the second angle valve 22, the third angle valve 35, the fourth angle valve 45, the first variable frequency gear pump 31 and the second variable frequency gear pump 41.
Referring to the attached drawings 1-5, the invention also provides a working method of the cigarette super conditioner outlet moisture control device, which comprises the following steps:
s1, supplementing a water source, setting the liquid level of the water tank 11 through the PLC 10, opening a first angle valve 13 by the PLC 10 to supplement water into the water tank 11 when the liquid level meter 12 detects that the liquid level of the water tank 11 is lower than the set liquid level, filtering water input into the water tank 11 by a filter 14, and closing the first angle valve 13 by the PLC 10 when the liquid level of the water tank 11 reaches the set liquid level;
s2, controlling the water temperature of the water tank, opening a second angle valve 22 by the PLC 10 to introduce steam in the steam pipeline 5 into the water tank 11 to heat water when water source supplement is carried out in the step S1 or the temperature sensor 21 detects that the water temperature is 5 ℃ lower than a process requirement set value, and closing the second angle valve 22 after 10 seconds of delay after the set temperature is reached;
s3, calculating the water flow rate from the front chamber, detecting the moisture data of the cut tobacco at the inlet 71 by the inlet moisture meter 8, sending the detected data to the PLC 10, wherein the PLC 10 is also used for acquiring the flow rate data of the cut tobacco at the inlet 71, the PLC 10 calculates the flow rate and the moisture of the cut tobacco when the cut tobacco reaches the inlet 71, the middle part and the outlet 72 of the super dampening roller 7 according to the moisture data and the flow rate data of the cut tobacco, and obtains the water adding flow rate of the cut tobacco at the inlet 71 of the super dampening roller 7 according to calculation;
it should be noted that the PLC controller 10 acquires the flow data of the cut tobacco at the inlet 71, and is connected to an electronic scale provided on the super conditioner to acquire the flow data of the cut tobacco at the inlet 71.
S4, adding water into the front chamber, opening a third angle valve 35 by the PLC 10 according to the water adding flow obtained in the step S3, controlling the first variable frequency gear pump 31 by the PLC 10 to convey water in the water tank 11 to the first dual-medium nozzle 34, mixing and atomizing steam and water in the steam pipeline 5, adding water into cut tobacco at the inlet 71 of the super dampening roller 7, and simultaneously collecting flow data through the first electromagnetic flow meter 33 to control the first variable frequency gear pump 31;
s5, calculating the water adding flow rate of the rear room, detecting the moisture data of the cut tobacco at the outlet 72 by the outlet moisture meter 9, sending the detected data to the PLC 10, and calculating the water adding flow rate of the cut tobacco at the outlet 72 of the super dampening roller 7 by the PLC 10 according to the moisture data of the cut tobacco;
and S6, adding water into the rear chamber, opening a fourth corner valve 45 by the PLC 10 according to the water adding flow obtained in the step S5, controlling the second variable frequency gear pump 41 by the PLC 10 to convey the water in the water tank 11 to a second dual-medium nozzle 44, mixing and atomizing the steam and the water in the steam pipeline 5, adding water into the cut tobacco at the inlet 71 of the super dampening roller 7, and simultaneously collecting flow data through a second electromagnetic flow meter 43 to control the second variable frequency gear pump 41.
It should be noted that, in steps S4 and S6, the siemens SETP7 program standard block FB41 is adopted to control the frequencies of the first variable frequency gear pump 31 and the second variable frequency gear pump 41, wherein the set value and the feedback value are respectively the theoretical water adding flow rate and the actual water adding flow rate, the output is the frequencies of the first variable frequency gear pump 31 and the second variable frequency gear pump 41, and the "dead zone" parameter setting is greater than "0.2" to prevent the frequencies of the first variable frequency gear pump 31 and the second variable frequency gear pump 41 from frequently jumping;
the water adding flow calculation process comprises the following steps:
according to the same weight of the inlet and outlet cut tobacco (dry material) of the super dampening roller 7, the following formula is obtained:
firstly, the flow rate of the cut tobacco (dry material) is equal to the flow rate of the cut tobacco at an inlet (1-moisture of the cut tobacco at the inlet);
② the flow of cut tobacco (dry material) and theoretical water addition amount are the flow of cut tobacco at the outlet and the cut tobacco (dry material)/(1-water content of cut tobacco at the outlet);
the following were obtained:
③ theoretical water adding amount at the inlet is leaf shred flow at the inlet (1-leaf shred moisture at the inlet) [ 1/(1-leaf shred moisture at the outlet) -1 ];
in the second and third steps, the water content of the cut tobacco at the outlet is the water content of the cut tobacco at the outlet set in the process requirement.
In order to reduce the phenomenon of wet mass or material surface wetting caused by adding water into the rear chamber, the actual water adding amount of the front chamber is the theoretical water adding amount K, wherein the upper limit value and the lower limit value of the K value are set to be 0.8-0.9, the water adding amount of the front chamber is ensured to be large, the water adding compensation of the rear chamber is carried out, and y (t) is output as the actual water adding amount;
respectively calculating the leaf shred flow and the leaf shred moisture when the leaf shreds reach an inlet 71, a middle part and an outlet 72 of the super dampening roller 7 by carrying out stack delay;
the executing mechanism for adding water in the rear chamber is the same as that for adding water in the front chamber, and is a variable frequency gear pump, wherein R (t) is the moisture content of the cut tobacco at the outlet set in the process requirement, and Y (t) is the moisture detection value of the outlet 72 of the super dampening roller 7.
The whole water adding process is mainly characterized by adding water into the front chamber and assisted by adding water into the rear chamber, and is used for supplementing water added into the front chamber.
The specific working principle is that by acquiring the moisture data of the cut tobacco at the inlet 71 and the outlet 72 of the super dampening roller 7, meanwhile, the flow data of the cut tobacco at the inlet 71 of the super dampening roller 7 is obtained, the cut tobacco flow and the cut tobacco moisture when the cut tobacco reaches the inlet 71, the middle part and the outlet 72 of the super dampening roller 7 are calculated, the flow of adding water to the cut tobacco at the inlet 71 of the super dampening roller 7 is calculated, adding water at the inlet 71, calculating the water adding flow rate of the cut tobacco according to the water data of the cut tobacco at the outlet 72 and the technological requirement parameters when the cut tobacco reaches the outlet 72 of the super dampening roller 7, and water is supplemented at the outlet 72, so that the problems that the outlet moisture meter 9 in the water adding system of the existing super conditioner has large hysteresis in detection, the moisture fluctuation of the outlet 72 is large and unstable, and the control of the outlet moisture of the dryer is seriously influenced are solved.
It should be noted that the specific model specifications of the PLC controller 10, the liquid level meter 12, the temperature sensor 21, the first electromagnetic flow meter 33, the second electromagnetic flow meter 43, the inlet moisture meter 8, the outlet moisture meter 9, the first angle valve 13, the second angle valve 22, the third angle valve 35, the fourth angle valve 45, the first variable frequency gear pump 31 and the second variable frequency gear pump 41 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, and therefore detailed description is omitted.
The power supply and the principle of the PLC controller 10, the liquid level meter 12, the temperature sensor 21, the first electromagnetic flow meter 33, the second electromagnetic flow meter 43, the inlet moisture meter 8, the outlet moisture meter 9, the first angle valve 13, the second angle valve 22, the third angle valve 35, the fourth angle valve 45, the first variable frequency gear pump 31 and the second variable frequency gear pump 41 will be clear to those skilled in the art and will not be described in detail herein.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. The utility model provides a cigarette super damping machine export moisture controlling means, includes super damping cylinder, the entrance of super damping cylinder is provided with the entry moisture appearance, the exit of super damping cylinder is provided with export moisture appearance, its characterized in that:
a water supply system comprising a water tank, a level gauge, a first angle valve, and a filter;
the input end of the first angle valve is communicated with a water source through a pipeline, the filter is arranged between the first angle valve and the water source, and the output end of the first angle valve is communicated with the water tank through the pipeline;
the heating system is communicated with the steam pipeline and is used for controlling the water temperature of the water stored in the water tank;
the front chamber water adding system is arranged at an inlet of the super dampening roller, is positioned at the rear side of the inlet moisture meter, is respectively communicated with the water tank and the steam pipeline simultaneously, and is used for adding water to the cut tobacco entering the super dampening roller;
the rear chamber water adding system is arranged at the outlet of the super dampening roller, is positioned on the front side of the outlet moisture meter, is respectively and simultaneously communicated with the water tank and the steam pipeline, and is used for adding water to the cut tobacco leaving the super dampening roller;
the outlet moisture control device of the super moisture regain machine for the cigarettes further comprises a PLC, and the PLC is in communication connection with the water supply system, the heating system, the front chamber water adding system, the rear chamber water adding system, the inlet moisture meter and the outlet moisture meter respectively.
2. The super damping machine outlet moisture control device for the cigarette as claimed in claim 1, wherein: the heating system comprises a temperature sensor and a second angle valve, the temperature sensor is arranged in the water tank, and the inside of the water tank is communicated with the steam pipeline through the second angle valve.
3. The super damping machine outlet moisture control device for the cigarette as claimed in claim 2, wherein: the front chamber water adding system comprises a first variable frequency gear pump, a first overflow valve, a first electromagnetic flowmeter, a first double-medium nozzle and a third angle valve, wherein the input ends of the first variable frequency gear pump and the first overflow valve are simultaneously communicated with one side of the bottom of the water tank through the pipeline, the output ends of the first variable frequency gear pump and the first overflow valve are simultaneously communicated with the input end of the first electromagnetic flowmeter through the pipeline, the first double-medium nozzle is arranged at the inlet of the super dampening roller, and the input end of the first double-medium nozzle is respectively communicated with the steam pipeline through the third angle valve and the output end of the first electromagnetic flowmeter through the pipeline.
4. The super damping machine outlet moisture control device for the cigarette as claimed in claim 3, wherein: the rear chamber water adding system comprises a second variable frequency gear pump, a second overflow valve, a second electromagnetic flow meter, a second dual-medium nozzle and a fourth angle valve, wherein the input ends of the second variable frequency gear pump and the second overflow valve are simultaneously communicated with the other side of the bottom of the water tank through the pipeline, the output ends of the second variable frequency gear pump and the second overflow valve are simultaneously communicated with the input end of the second electromagnetic flow meter through the pipeline, the second dual-medium nozzle is arranged at the inlet of the super dampening roller, and the input end of the second dual-medium nozzle is respectively communicated with the steam pipeline through the fourth angle valve and is communicated with the output end of the second electromagnetic flow meter through the pipeline.
5. The super damping machine outlet moisture control device for the cigarette as claimed in claim 4, wherein: the signal input part of PLC controller respectively with the level gauge temperature sensor first electromagnetic flowmeter second electromagnetic flowmeter the entry moisture meter with the signal output part communication connection of export moisture meter, the signal output part of PLC controller respectively with first angle valve second angle valve third angle valve fourth angle valve first frequency conversion gear pump with the signal input part communication connection of second frequency conversion gear pump.
6. The super damping machine outlet moisture control device for the cigarette as claimed in claim 1, wherein: the water of the water source is purified water, and the pressure of the water source connected with the first corner valve is not lower than 0.3 Mpa.
7. An operating method of the super conditioner outlet moisture control device for the cigarette according to any one of claims 1 to 6, which is characterized in that: the method comprises the following steps:
s1, water source supplement, wherein the liquid level of the water tank is set through the PLC, when the liquid level meter detects that the liquid level of the water tank is lower than the set liquid level, the PLC opens a first angle valve to supplement water into the water tank, a filter is used for filtering water input into the water tank, and when the liquid level of the water tank reaches the set liquid level, the PLC closes the first angle valve;
s2, controlling the water temperature of the water tank, opening a second angle valve by the PLC controller to introduce steam in the steam pipeline into the water tank to heat the water when the water source supplement is carried out in the step S1 or the temperature sensor detects that the water temperature is 5 ℃ lower than the set value required by the process, and closing the second angle valve after delaying for 10 seconds after the set temperature is reached;
s3, calculating the water flow rate of the front chamber, detecting the moisture data of the cut tobacco at the inlet by the inlet moisture meter, sending the detected data to the PLC, obtaining the flow data of the cut tobacco at the inlet by the PLC, calculating the cut tobacco flow rate and the cut tobacco moisture when the cut tobacco reaches the inlet, the middle part and the outlet of the super dampening roller by the PLC according to the moisture data and the flow data of the cut tobacco, and obtaining the water flow rate of the cut tobacco at the inlet of the super dampening roller according to the calculation;
s4, adding water into the front chamber, opening a third angle valve by the PLC according to the water adding flow obtained in the step S3, controlling a first variable frequency gear pump to convey water in the water tank to a first dual-medium nozzle by the PLC, mixing and atomizing steam and water in a steam pipeline, adding water into cut tobacco at the inlet of the super dampening roller, and simultaneously collecting flow data through a first electromagnetic flowmeter to control the first variable frequency gear pump;
s5, calculating the water flow in the back room, detecting the water data of the cut tobacco at the outlet by the outlet moisture meter, sending the detected data to the PLC, and calculating the water flow of the cut tobacco at the outlet of the super dampening roller by the PLC according to the water data of the cut tobacco;
and S6, adding water into the rear chamber, opening a fourth angle valve by the PLC according to the water adding flow obtained in the step S5, controlling a second variable frequency gear pump to convey water in the water tank to a second dual-medium nozzle by the PLC, mixing and atomizing steam and water in the steam pipeline, adding water into the cut tobacco at the inlet of the super dampening roller, and simultaneously collecting flow data through a second electromagnetic flowmeter to control the second variable frequency gear pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210566448.4A CN115005477A (en) | 2022-05-24 | 2022-05-24 | Device for controlling moisture at outlet of super damping machine for cigarettes and working method |
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| CN202210566448.4A CN115005477A (en) | 2022-05-24 | 2022-05-24 | Device for controlling moisture at outlet of super damping machine for cigarettes and working method |
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| CN112021631A (en) * | 2020-10-14 | 2020-12-04 | 河南中烟工业有限责任公司 | Outlet moisture control system and method for loosening and conditioning process |
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2022
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| US6155269A (en) * | 1997-11-20 | 2000-12-05 | Brown & Williamson Tobacco Corporation | Method for regulating the output humidity of tobacco |
| CN103844337A (en) * | 2012-11-28 | 2014-06-11 | 山东中烟工业有限责任公司青岛卷烟厂 | Tobacco leaf loosening and dampening device and water adding control method thereof |
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Application publication date: 20220906 |