CN112369642A - Method and equipment for fully sealing and samming tobacco shreds - Google Patents
Method and equipment for fully sealing and samming tobacco shreds Download PDFInfo
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- CN112369642A CN112369642A CN202011404678.8A CN202011404678A CN112369642A CN 112369642 A CN112369642 A CN 112369642A CN 202011404678 A CN202011404678 A CN 202011404678A CN 112369642 A CN112369642 A CN 112369642A
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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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Abstract
The invention discloses a method and equipment for totally-enclosed temperature and humidity equalization of cut tobacco. The tobacco shred totally-enclosed temperature and humidity equalizing equipment comprises a main shaft, a humidifying system, a heating system, a discharging airlock and an equipment shell, wherein a feeding port and a discharging port are respectively arranged at two ends of the equipment shell, the feeding port is connected with a discharging port of a gas-material separator of airflow drying equipment, and the discharging port is connected with the discharging airlock; the humidifying system is arranged at one end close to the feeding hole, the heating system is arranged on the equipment shell, the main shaft is arranged in the equipment shell, and loosening rollers are spirally distributed on the outer wall of the main shaft. The tobacco shred drying device firstly loosens the tobacco shred, then slightly remoistens the tobacco shred with substandard moisture in a humidifying mode, and finally quickly evaporates the tobacco shred with overhigh moisture in a heating temperature increasing mode, so that the phenomenon of unbalanced temperature and humidity of the tobacco shred after air flow drying is effectively solved.
Description
Technical Field
The invention belongs to the tobacco industry, and particularly relates to a method and equipment for totally-enclosed temperature and humidity equalization after tobacco shred airflow drying.
Background
After air flow drying, the water content index of common cut tobacco is 11.5-14%, the allowable deviation is +/-0.5%, and the standard deviation is less than or equal to 0.17%; the temperature index is 55-75 ℃, and the allowable deviation is +/-3 ℃. Generally, the average temperature and humidity of the cut tobacco after air flow drying can reach the index requirements, but the local moisture fluctuation condition of the cut tobacco often occurs, and the moisture can exceed the process requirements in serious cases, thereby affecting the physical properties of the cut tobacco and causing the process difficulty of a downstream production line.
The local moisture fluctuation condition of the cut tobacco is related to the characteristics of air flow drying. The whole drying process of the conventional air flow drying is generally finished within about 10 seconds, and common means of uniform temperature and uniform humidity such as stir-frying, stirring and the like are not generally adopted in the drying process, so that the moisture and the temperature of the cut tobacco subjected to air flow drying are not uniform and often fluctuate. In contrast, the range of the temperature index is wider and is not easy to exceed the standard, but the range of the moisture index is relatively strict and is easy to exceed the standard after being dried by airflow.
Chinese patent (publication No. CN201750706U) discloses an intermittent processing system for the dry end and the dry tail of dried tobacco leaves, which adopts a bypass line roller to carry out intermittent moisture regaining to realize the same batch back blending of the dry end and the dry tail of the tobacco leaves, but the throwing motion of the roller greatly crushes the dry end and the dry tail of the tobacco leaves. Chinese patent (publication No. CN204409556U) discloses a constant-temperature constant-humidity static-state moisture-regaining system for dry ends and dry tails of dried tobacco leaves, which enables the dry ends and the dry tails of the tobacco leaves to be dampened in a static manner in a constant-temperature constant-humidity moisture-regaining box by arranging the constant-temperature constant-humidity moisture-regaining box, but the tobacco leaves are not fully mixed, and the problem that the temperature and the humidity of the tobacco leaves are not uniform is not solved.
Generally, the average moisture index of the cut tobacco after air flow drying can be controlled within the process requirement range, but local moisture exceeds the standard due to local moisture fluctuation, so equipment needs to be added after air flow drying to realize uniform temperature and uniform humidity of the cut tobacco through stir-frying or stirring and other modes. Even under the condition that the pneumatic drying does not reach the standard, the equipment can automatically correct the moisture of the cut tobacco within the temperature index range so as to meet the moisture index requirement.
Disclosure of Invention
The invention provides a totally-closed tobacco shred temperature and humidity equalizing method and equipment, which can realize temperature and humidity equalization of tobacco shreds and solve the problem that the moisture content of the tobacco shreds exceeds the standard after air drying of the tobacco shreds.
The tobacco shred totally-enclosed temperature and humidity equalizing method comprises the steps of feeding tobacco shreds subjected to air flow drying into a tobacco shred totally-enclosed temperature and humidity equalizing device, stirring and loosening the tobacco shreds in the process of arriving at a discharge port from a feed port of the tobacco shred totally-enclosed temperature and humidity equalizing device, humidifying and dampening the tobacco shreds by a humidifying system of the tobacco shred totally-enclosed temperature and humidity equalizing device, and adjusting the temperature in the device by a heating system of the tobacco shred totally-enclosed temperature and humidity equalizing device.
Preferably, the actual humidity and the actual temperature of the tobacco shreds output by the equipment are detected, and the humidification quantity and the temperature in the equipment are adjusted according to the difference value between the actual temperature and the actual humidity of the tobacco shreds and the set temperature and humidity.
Preferably, the hot air in the cut tobacco is filtered before the cut tobacco enters the equipment.
The invention discloses a tobacco shred totally-enclosed temperature and humidity equalizing device which comprises a main shaft, a humidifying system, a heating system, a discharging airlock and a device shell, wherein a feeding hole and a discharging hole are respectively formed in two ends of the device shell, the feeding hole is connected with the discharging hole of a gas-material separator of airflow drying equipment, and the discharging hole is connected with the discharging airlock; the humidifying system is arranged at one end close to the feeding hole, the heating system is arranged on the equipment shell, the main shaft is arranged in the equipment shell, and loosening rollers are spirally distributed on the outer wall of the main shaft.
The invention connects the feed inlet of the tobacco shred totally-enclosed temperature and humidity equalizing equipment with the discharge outlet of the gas-material separator of the air flow drying equipment, so that the tobacco shreds dried by the air flow directly enter the totally-enclosed temperature and humidity equalizing equipment. The tobacco shreds can be loosened rapidly under the action of the loosening rollers distributed spirally, the loosened tobacco shreds are favorable for the diffusion of humidity and temperature, the tobacco shreds with different temperatures and humidities are rapidly mixed under the continuous stirring of the loosening rollers, and the temperature exchange and the humidity are balanced with each other, so that the purposes of uniform temperature and uniform humidity are achieved. The invention adopts the heating system and the humidifying system to adjust the temperature and the humidity of the tobacco shred in the equipment in real time, and the standard deviation of the moisture of the tobacco shred can be controlled within the range of less than or equal to 0.13 percent so as to meet the requirements of process indexes.
Preferably, the humidification system includes humidifying pipe and humidification nozzle, the main shaft is close to the one end of feed inlet is provided with the axial hole and the radial hole of mutual intercommunication, the humidification nozzle is installed radial downthehole, the humidifying pipe is located outside the equipment housing, and with the axial hole intercommunication.
Preferably, the number of the radial holes is multiple, the radial holes are uniformly distributed along the circumferential direction of the main shaft, and a humidifying nozzle is installed in each radial hole. Take 4 humidification nozzles as an example, which are distributed in a cross arrangement along the main axis.
Preferably, heating system is including heating half a tub of and heating water tank, heating half a tub of spiral distribution is in on the outer wall of equipment casing, the water inlet, the delivery port of heating half a tub with heating water tank connects and forms the hot water circulation return circuit, the water inlet of heating half a tub with install the hot water circulating pump between the heating water tank, heating water tank's inside still installs the heater.
Preferably, a temperature sensor is arranged near the water inlet of the heating half pipe, and the heater is linked with the temperature sensor to control the circulating water temperature; still include humidification flowmeter and humiture appearance, the humidification flowmeter sets up on the humidifying pipe, the humiture appearance is used for detecting the temperature and the humidity of ejection of compact airlock exhaust pipe, the humiture appearance with temperature sensor and humidification flowmeter link adjust the temperature and the humidity of pipe tobacco. The humidifying flow meter is used for controlling the humidification quantity in the temperature and humidity equalizing equipment, the humiture instrument can be linked with the temperature sensor and the humidifying flow meter, and the hot water circulation temperature and the humidification quantity can be automatically adjusted according to the temperature and the humidity of the tobacco shreds so as to ensure that the temperature and the humidity of the tobacco shreds are within a normal fluctuation range.
Preferably, the device shell and the heating half-pipe are also provided with heat-insulating layers outside, and the heating half-pipe is formed by connecting a plurality of groups of half-pipes in parallel, so that the heating efficiency is higher.
Preferably, a liquid level meter is installed inside the heating water tank, the heating water tank is further provided with a pneumatic water replenishing valve, and the liquid level meter is linked with the pneumatic water replenishing valve to realize automatic water replenishing; the bottom of the heating water tank is also provided with a water outlet, and a pneumatic drain valve is arranged on the water outlet. The pneumatic drain valve can discharge the circulating water in the heating water tank after being opened.
Compared with the prior art, the tobacco shred drying device has the advantages that tobacco shreds are loosened firstly, then the tobacco shreds with substandard moisture are subjected to micro-moisture regaining in a humidifying mode, and finally the tobacco shreds with overhigh moisture are quickly evaporated in a heating temperature increasing mode, so that the phenomenon of unbalanced temperature and humidity of the tobacco shreds after air flow drying is effectively solved; the invention also adopts a flexible loosening device to stir or stir the cut tobacco, so that the cut tobacco is small in size.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
fig. 2 is a schematic view of the distribution of the humidifying nozzles of the present invention.
Reference numerals: 1. the device comprises a humidifying flow meter, 2. a humidifying pipe, 3. a rotary joint, 4. an insulating layer, 5. a heating half pipe, 6. a main shaft, 7. a flexible loosening roller, 8. a discharging air lock, 9. a bearing seat, 10. a speed reducing motor, 11. an auxiliary connecting device, 12. a temperature and humidity instrument, 13. a temperature equalizing and humidity equalizing device outer shell, 14. a pneumatic water replenishing valve, 15. an electric heater, 16. a heating water tank, 17. a pneumatic water discharging valve, 18. a liquid level meter, 19. a temperature equalizing and humidity equalizing device inner shell, 20. a hot water circulating pump, 21. a humidifying nozzle, 22. a temperature sensor, 23. a gas-material separator and 24. a bearing seat.
Detailed Description
The invention is further described with reference to the following examples and the accompanying drawings.
The structure of the tobacco shred totally-enclosed temperature and humidity equalizing device of the invention is described with reference to fig. 1. The tobacco shred totally-enclosed temperature and humidity equalizing equipment is provided with a humidifying system and a heating system, wherein the humidifying system adopts a humidifying pipe 2 outside an equipment shell and a humidifying nozzle 21 arranged on a main shaft 6 to realize the adjustment of the humidity of tobacco shreds, and the humidifying pipe 2 and the humidifying nozzle 21 are communicated through an axial hole and a radial hole of the main shaft 6. The heating system adopts a heating water tank 16 and a heating half pipe 5 which is spirally distributed on the outer wall of the equipment shell to realize the adjustment of the temperature of the cut tobacco, and in order to better maintain the temperature in the equipment to be stable, the invention also arranges heat-insulating layers outside the equipment shell and the heating half pipe, so the equipment shell is correspondingly divided into an outer shell 13 of the temperature-equalizing and humidity-equalizing device and an inner shell 19 of the temperature-equalizing and humidity-equalizing device.
As shown in fig. 1, the gas-material separator 23 is connected to the air drying tail part of the tobacco shred, and the discharge port of the gas-material separator 23 is connected to the feed port a of the inner shell 19 of the temperature and humidity equalizer. The two ends of the inner shell 19 of the temperature and humidity equalizer are provided with 2 inlets and 2 outlets, the upper left end of the inner shell 19 of the temperature and humidity equalizer is provided with an upward feeding hole a, and the feeding hole a is connected with a discharging hole of the gas-material separator 23; the lower right end of the inner shell 19 of the temperature and humidity equalizer is provided with a downward discharge hole b which is connected with a feed inlet of a discharge airlock 8. Heating half pipes 5 are spirally distributed on the outer wall of the inner shell 19 of the temperature and humidity equalizer, and the heating half pipes 5 are formed by connecting 3 groups of half pipes in parallel; three groups of parallel half pipes of the heating half pipe 5 are converged to a downward hot water inlet d at the left lower end of the device, and the hot water inlet d is connected with a hot water circulating pump 20; three groups of parallel half pipes of the heating half pipe 5 are converged to an upward hot water outlet c at the right upper end of the equipment, and the hot water outlet c is connected with a water return port of the heating water tank 16. And an insulating layer 4 is filled between the temperature and humidity equalizer inner shell 19 and the temperature and humidity equalizer outer shell 13.
The main shaft 6 is arranged at the central line position of the inner shell 19 of the temperature and humidity equalizer, the flexible loosening roller 7 is spirally distributed on the outer wall of the main shaft 6, the flexible loosening roller 7 is made of food-grade rubber rods, and the surface is soft and elastic. The main shaft 6 is provided with humidifying nozzles 21 within a distance of about 200mm from the feed inlet a, 1-4 humidifying nozzles 21 can be uniformly distributed along the circumferential direction according to requirements, and the distribution is in a cross arrangement as shown in fig. 2 by taking 4 humidifying nozzles as an example. The humidifying nozzle 21 is connected with the main shaft 6 through threads, a connecting hole (namely a radial hole) is arranged below the threaded hole and leads to a central hole (namely an axial hole) of the main shaft 6, the central hole of the main shaft 6 is communicated with the humidifying pipe 2 outside the shell through the rotary joint 3, the humidifying pipe 2 is provided with the humidifying flowmeter 1, and the humidifying flowmeter 1 is used for controlling the humidifying quantity in the inner shell 19 of the temperature and humidity equalizer. Bearing blocks 24 and bearing blocks 9 are installed at two ends of the main shaft 6, a speed reducing motor 10 is installed on the outer side of the bearing block 9 on the main shaft 6, and the speed reducing motor 10 provides power for the rotation of the main shaft 6.
The heating half pipe 5 is connected with the heating water tank 16 from the water inlet and the water outlet c and the water outlet d to form a hot water circulation loop. A hot water circulating pump 20 is arranged between the water inlet d and the heating water tank 16, and the hot water circulating pump 20 provides power for the circulating water path; a liquid level meter 18 is arranged in the heating water tank 16, and the liquid level meter 18 is linked with the pneumatic water replenishing valve 14 to realize the automatic water replenishing function; an electric heater 15 is further installed inside the heating water tank 16, and the electric heater 15 is linked with a temperature sensor 22 near the water inlet d to achieve the function of automatically controlling the circulating water temperature; the bottom of the heating water tank 16 is also provided with a water outlet, a pneumatic drain valve 17 is arranged on the water outlet, and the pneumatic drain valve 17 can discharge circulating water in the heating water tank 16 after being opened.
Install ejection of compact air lock 8 at the lower extreme of discharge gate b, ejection of compact air lock 8 below is installed and is transported the supplementary even equipment 11 of material, and the humiture appearance 12 is installed to the upper end of supplementary even equipment 11, and humiture appearance 12 links with temperature sensor 22 and humidification flowmeter 1, can be according to the humiture automatically regulated hot water circulation temperature and the humidification volume of the material on the supplementary even equipment 11 to guarantee that the humiture of the material of controlling is in normal fluctuation range. The tobacco shred totally-enclosed temperature and humidity equalizing equipment realizes the totally-enclosed whole equipment through the gas-material separator 23 and the discharging airlock 8, thereby isolating the inside and the outside of the equipment. With reference to fig. 1, the totally-enclosed temperature and humidity equalization method for the cut tobacco comprises the following steps: before the equipment starts to operate, the humidity H required to be maintained by the material F1 on the auxiliary equipment 11 and the hot water circulation temperature T1 corresponding to the maintenance temperature T need to be set, and the actual temperature and humidity conditions of the material F1 are detected on line through the temperature and humidity instrument 12.
Generally, the tobacco shreds F dried in a very short time have uneven temperature and humidity because the pneumatic drying time of the tobacco shreds is very short, namely 6-8 seconds in the whole drying process. After the tobacco shreds F are dried by air flow, the hot air is filtered out by the separation action of the gas-material separator 23, and the rest material with certain temperature and humidity enters the inner shell 19 of the uniform temperature and humidity device from the discharge hole of the gas-material separator 23. The main shaft 6 in the inner shell 19 of the temperature and humidity equalizer rotates at a certain speed, and is arranged on the main shaft 6The spirally distributed flexible loosening rollers 7 can loosen the agglomerated tobacco shreds F through the centrifugal action and the knocking action, and the tobacco shreds F with uneven temperature and humidity can be uniformly heated and wetted through the stirring action. The cut tobacco F is pushed and moved to a discharge hole b at a feed inlet a through the stirring of a main shaft 6 and a flexible loosening roller 7, the moving time is t, and t is more than or equal to 3min and less than or equal to 5min under the general condition. The temperature difference of the tobacco shreds F moving from the feeding hole a to the discharging hole b is balanced by the set circulating water temperature T1. The tobacco shred F1 subjected to the totally-enclosed temperature and humidity equalization treatment falls into the discharge airlock 8 from the discharge port b, then falls onto the auxiliary connection equipment 11 through the discharge airlock 8, and the actual temperature T of the tobacco shred F1 detected on the auxiliary connection equipment 11 through the humiture instrument 12Practice ofAnd actual humidity HPractice of. When H is presentPractice ofWhen the humidity is less than the set humidity H, the humidifying pipe 2 is opened and is pressed according to H-H under the control of the humidifying flowmeter 1Practice ofThe difference value of the humidity sensor corresponds to the adding proportion of the humidification quantity m so as to ensure the actual humidity H of the cut tobacco F1 treated by the temperature and humidity equalizerPractice ofInfinitely close to the set humidity H; when H is presentPractice ofWhen the humidity is higher than the set humidity H, press HPractice ofThe difference value of the H is correspondingly increased to the hot water circulation temperature T1 so as to ensure that the redundant moisture of the cut tobacco F1 processed by the temperature and humidity equalizer can be quickly evaporated, and the actual humidity H of the cut tobaccoPractice ofInfinitely close to the set humidity H.
In particular, the heating half-pipe 5 can be replaced by an electric heating wire, the circulating hot water can be replaced by heat-conducting oil, and an electric heater or steam can be used for supplying heat for the circulating hot water or the heat-conducting oil.
The above examples are only preferred embodiments of the present invention, it should be noted that: it will be apparent to those skilled in the art that various modifications and equivalents can be made without departing from the spirit of the invention, and it is intended that all such modifications and equivalents fall within the scope of the invention as defined in the claims.
Claims (10)
1. A totally-closed temperature and humidity equalizing method for tobacco shreds is characterized by comprising the following steps: the tobacco shred drying method comprises the steps that tobacco shreds subjected to air flow drying are fed into tobacco shred fully-closed temperature and humidity equalizing equipment, the tobacco shreds are stirred and loosened in the process of arriving at a discharge port from a feeding port of the tobacco shred fully-closed temperature and humidity equalizing equipment, a humidifying system of the tobacco shred fully-closed temperature and humidity equalizing equipment humidifies and remoistens the tobacco shreds, and a heating system of the tobacco shred fully-closed temperature and humidity equalizing equipment adjusts the temperature in the equipment.
2. The totally-closed temperature and humidity equalizing method for the cut tobacco according to claim 1, which is characterized in that: and detecting the actual humidity and the actual temperature of the tobacco shreds output by the equipment, and adjusting the humidification quantity and the temperature in the equipment according to the difference value of the actual temperature and the actual humidity of the tobacco shreds and the set temperature and humidity.
3. The totally-closed temperature and humidity equalizing method for the cut tobacco according to claim 1, which is characterized in that: the hot air in the tobacco shreds is filtered before the tobacco shreds enter the equipment.
4. A totally closed samming of pipe tobacco is wet equipment which characterized in that: the device comprises a main shaft, a humidifying system, a heating system, a discharging airlock and a device shell, wherein a feeding hole and a discharging hole are respectively formed in two ends of the device shell, the feeding hole is connected with a discharging hole of a gas-material separator of airflow drying equipment, and the discharging hole is connected with the discharging airlock; the humidifying system is arranged at one end close to the feeding hole, the heating system is arranged on the equipment shell, the main shaft is arranged in the equipment shell, and loosening rollers are spirally distributed on the outer wall of the main shaft.
5. The totally-enclosed temperature and humidity equalizing equipment for the cut tobacco according to claim 4, characterized in that: the humidifying system comprises a humidifying pipe and a humidifying nozzle, wherein the main shaft is close to one end of the feed inlet and is provided with an axial hole and a radial hole which are communicated with each other, the humidifying nozzle is installed in the radial hole, and the humidifying pipe is located outside the equipment shell and is communicated with the axial hole.
6. The totally-enclosed temperature and humidity equalizing equipment for the cut tobacco according to claim 5, characterized in that: the radial holes are distributed uniformly along the circumferential direction of the main shaft, and a humidifying nozzle is arranged in each radial hole.
7. The totally-enclosed temperature and humidity equalizing equipment for the cut tobacco according to claim 5, characterized in that: heating system is including heating half a tub of and heating water tank, heating half a tub of spiral distribution is in on the outer wall of equipment casing, heating half a tub of advance, delivery port with heating water tank connects and forms the hot water circulation return circuit, heating half a tub of water inlet with install the hot water circulating pump between the heating water tank, heating water tank's inside still installs the heater.
8. The totally-enclosed temperature and humidity equalizing equipment for the cut tobacco according to claim 7, characterized in that: a temperature sensor is arranged near the water inlet of the heating half pipe, and the heater is linked with the temperature sensor to control the circulating water temperature; still include humidification flowmeter and humiture appearance, the humidification flowmeter sets up on the humidifying pipe, the humiture appearance is used for detecting the temperature and the humidity of ejection of compact airlock exhaust pipe, the humiture appearance with temperature sensor and humidification flowmeter link adjust the temperature and the humidity of pipe tobacco.
9. The totally-enclosed temperature and humidity equalizing equipment for the cut tobacco according to claim 7, characterized in that: and heat-insulating layers are arranged outside the equipment shell and the heating half-pipes, and the heating half-pipes are formed by connecting a plurality of groups of half-pipes in parallel.
10. The totally-enclosed temperature and humidity equalizing equipment for the cut tobacco according to claim 7, characterized in that: a liquid level meter is arranged in the heating water tank, a pneumatic water replenishing valve is further arranged in the heating water tank, and the liquid level meter is linked with the pneumatic water replenishing valve to realize automatic water replenishing; the bottom of the heating water tank is also provided with a water outlet, and a pneumatic drain valve is arranged on the water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011404678.8A CN112369642A (en) | 2020-12-03 | 2020-12-03 | Method and equipment for fully sealing and samming tobacco shreds |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011404678.8A CN112369642A (en) | 2020-12-03 | 2020-12-03 | Method and equipment for fully sealing and samming tobacco shreds |
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| Publication Number | Publication Date |
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| CN112369642A true CN112369642A (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011404678.8A Pending CN112369642A (en) | 2020-12-03 | 2020-12-03 | Method and equipment for fully sealing and samming tobacco shreds |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115468404A (en) * | 2022-09-13 | 2022-12-13 | 震宇（芜湖）实业有限公司 | Material moisture content quantitative regulation and control equipment based on closed-loop control |
-
2020
- 2020-12-03 CN CN202011404678.8A patent/CN112369642A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115468404A (en) * | 2022-09-13 | 2022-12-13 | 震宇（芜湖）实业有限公司 | Material moisture content quantitative regulation and control equipment based on closed-loop control |
| CN115468404B (en) * | 2022-09-13 | 2023-12-05 | 震宇（芜湖）实业有限公司 | Material moisture content quantitative regulation and control equipment based on closed-loop control |
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