CN112273699A - Sheet cut tobacco drying equipment with flow passing section - Google Patents
Sheet cut tobacco drying equipment with flow passing section Download PDFInfo
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- CN112273699A CN112273699A CN202011183658.2A CN202011183658A CN112273699A CN 112273699 A CN112273699 A CN 112273699A CN 202011183658 A CN202011183658 A CN 202011183658A CN 112273699 A CN112273699 A CN 112273699A
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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
- A24B3/10—Roasting or cooling 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
- A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
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Abstract
The invention discloses sheet tobacco drying equipment with a flow-through section, which comprises a rack assembly (1) and a tobacco drying device arranged on the rack assembly (1), wherein the tobacco drying device mainly comprises a front chamber (3), a material guide cylinder (4), a fan cover (5), a tobacco drying cylinder rotating mechanism (6), a hot air system (7), a tobacco drying cylinder (8), a rear chamber (9), a steam dust extraction box (10) and a moisture exhaust air pipe (11). The invention utilizes the characteristic of fast air flow drying dehydration, high-temperature hot air penetrates into the drying cylinder from bottom to top along the radial direction of the drying cylinder, controllable high-temperature air flow penetrating into the drying cylinder uniformly penetrates under the axial inclination angle of the dried cylinder and the high-point throwing dredging action of a heat exchange shoveling plate in the cylinder to assist in supporting and loosening materials, uniformly heating and drying the materials, and realizing the purpose of high-efficiency high-quality dehydration of the cut tobacco by combining the cross-flow hot air section drying with the traditional cut tobacco dryer.
Description
Technical Field
The invention relates to sheet cut tobacco drying equipment, in particular to sheet cut tobacco drying equipment with a flow-through section, and belongs to the technical field of tobacco production and processing.
Background
Generally speaking, in cigarette manufacturing enterprises, a drum-type sheet tobacco dryer in existing tobacco processing mainly comprises a front chamber, a frame, a drying drum, a hot air system, a main machine pipeline, a rear chamber, a steam dust extraction box, an electric control system and the like. At present, the traditional roller-type thin plate cut tobacco dryer enables materials to be uniformly heated and dried by combining three heating modes, namely thin plate conduction, radiation and hot air forced convection, and the cut tobacco dryer can expose the fragrance of the materials, make the smoke smell mellow and reach the required moisture content. But compared with air-flow cut tobacco drying, the filling value is slightly lower, the dehydration rate is lower, the production capacity is low, and the energy consumption is high.
Aiming at the problems of the traditional drum-type thin plate cut tobacco drying machine, the invention provides thin plate cut tobacco drying equipment with a flow-through section, which realizes the aim of efficiently dehydrating cut tobacco with high quality by the combination of the drying of the flow-through hot air section and the traditional cut tobacco drying machine.
The flow-through means that high-temperature hot air penetrates into the drying cylinder from bottom to top along the radial direction of the drying cylinder, the controllable high-temperature air flow penetrating into the drying cylinder uniformly penetrates under the axial inclination angle of the drying cylinder and the high-point material throwing and dredging effect of the heat exchange shoveling plate in the drying cylinder, the controllable high-temperature air flow is assisted to support and loosen materials, the materials are uniformly heated and dried, the characteristic of rapid drying and dehydration of the air flow is fully utilized, the cut tobacco is rapidly shaped, and the filling value of the cut tobacco is improved. And the thin plate cut tobacco of the traditional structure tightly connected with the flow-through drying section fully exerts the characteristics that the aroma of the material is exposed, the smoke smell becomes mellow and the moisture content is uniform.
Disclosure of Invention
Aiming at the problems of the traditional drum-type thin plate cut tobacco drying machine, the invention provides a thin plate cut tobacco drying technology with a flow-through section and equipment, and the aim of efficiently dehydrating the cut tobacco with high quality is fulfilled by the combination of the drying of the flow-through hot air section and the traditional thin plate cut tobacco drying machine.
In order to solve the above problems and achieve the above objects, the present invention provides a drum-type sheet tobacco dryer for tobacco processing, which is implemented by adopting the following design structure and the following technical scheme:
the sheet tobacco drying equipment with the flow-through section comprises a rack assembly (1), a tobacco drying device arranged on the rack assembly (1), and a pipeline control cabinet (2) arranged on one side of the rack assembly (1), wherein the tobacco drying device is in signal connection with the control device and mainly comprises a front chamber (3), a material guide cylinder (4), a fan cover (5), a tobacco drying cylinder rotating mechanism (6), a hot air system (7), a tobacco drying cylinder (8), a rear chamber (9), a steam dust pumping box (10) and a moisture exhaust air pipe (11), wherein the front chamber (3) is arranged at the front ends of the tobacco drying cylinder (8) and the fan cover (5); the rear chamber (9) is arranged at the rear ends of the silk drying cylinder (8) and the fan cover (5); the material guide cylinder (4) is arranged at the front end of the cut tobacco drying cylinder (8) and is coaxial with the cut tobacco drying cylinder (8); a sealing ring is arranged at the joint of the front chamber (3) and the material guide cylinder (4); the steam dust extraction box (10) is arranged above the rear chamber (9); the hot air system (7) is respectively connected with the front chamber (3) and the steam dust extraction box (10).
Preferably, the front chamber (3) is a feeding end of cut tobacco or cut stems, hot air flows through the lower part of the front chamber (3) and is input into the material guide cylinder (4), and a sealing ring is arranged at the joint of the front chamber (3) and the material guide cylinder (4) to prevent heat and the cut tobacco or the cut stems from leaking; one side of the antechamber (3) is provided with a moisture exhaust air pipe (11), and the moisture exhaust air pipe (11) is provided with a temperature and humidity sensor and a control valve, so that the temperature and humidity of moisture exhaust air can be detected and the moisture exhaust air volume can be controlled.
Preferably, shoveling plates (41) are arranged on the circumference of the inner wall of the guide cylinder (4) in the radial direction, and the length of each shoveling plate (41) is not more than that of the guide cylinder (4).
Preferably, the guide cylinder (4) is arranged at the front end of the silk drying cylinder (8), is made of a fine mesh cylinder woven by metal wires, is connected with the silk drying cylinder (8) and is of a straight cylinder structure with two open ends, one end of the guide cylinder (4) is a feeding end, one end of the silk drying cylinder (8) is a discharging end, the outsides of the feeding end and the discharging end are respectively and coaxially provided with a silk drying cylinder rotating mechanism (6), and the silk drying cylinder rotating mechanism (6) drives the guide cylinder (4) and the silk drying cylinder (8) to do rotating motion.
Preferably, the hot air system (7) comprises an air heat exchanger (71), a fan (72), a hot air pipe (73) and a flow through pipe (74), wherein the hot air pipe (73) and the flow through pipe (74) are provided with a control valve, a temperature and humidity sensor and a flow meter, and the flow through pipe (74) is perpendicular to the material guide cylinder (4).
Preferably, an air outlet of the air heat exchanger (71) is connected to an air inlet of a fan (72), the air outlet of the fan (72) is connected with a hot air pipe (73), the hot air pipe (73) divides the flow at the top of the cut-tobacco drying cylinder (8), wherein a flow through pipe (74) is arranged below the material guide cylinder (4) from bottom to top through the bottom of the front chamber (3) around one side of the front chamber (3) along the axial direction of the cut-tobacco drying cylinder (8); the hot air pipe (73) is connected to the steam dust extraction box (10) along the axial direction of the wire drying cylinder (8) backwards; the hot air pipe (73) is provided with a control valve, a temperature sensor and a flow meter.
Preferably, the air hood (5) divides the cut-tobacco drying device into three separate areas, including a flow passing area consisting of a front chamber (3), a material guide cylinder (4) and a flow passing pipe (74), a cut-tobacco drying area consisting of a cut-tobacco drying cylinder (8), a hot air pipe (73) and a steam-dust extraction box (10), and a discharge area consisting of a rear chamber (9), wherein the flow passing pipe (74) and the hot air pipe (73) are respectively connected with the flow passing area and the cut-tobacco drying area.
Preferably, one side of the fan cover (5) is provided with an observation door; a rotary joint (12) which is coincident with the axial lead of the silk drying cylinder (8) is also arranged outside the silk drying cylinder; the outer parts of the fan cover (5) and the wire drying cylinder (8) are provided with heat insulation layers; the lower end of the rear chamber (9) is provided with a discharge hole; the moisture exhaust air pipe (11) is provided with a control valve, a temperature and humidity sensor and a flow meter; the control device is a single chip microcomputer, a programmable logic controller, a PC (personal computer) or a PLC (programmable logic controller).
Preferably, the cut-tobacco drying cylinder rotating mechanism (6) comprises a driving motor, a reduction gearbox, chain wheels, chains, gears and racks, wherein one of the chain wheels is arranged on a main shaft of the driving motor, the other chain wheel is connected with any gear through a transmission shaft, the transmission shaft is arranged on a rack assembly (1) at the bottom of the cut-tobacco drying cylinder (8) through a bearing and a bearing seat, the chains are arranged on the two chain wheels, the gears are symmetrically arranged on the rack assembly (1) at the bottom of the cut-tobacco drying cylinder (8) through gear seats, the racks are arranged on the cut-tobacco drying cylinder (8) in a whole circle around the outer wall, the cut-tobacco drying cylinder (8) is arranged on the gears through rack meshing, any gear is connected with the chain wheels, the chain wheels are connected with a main shaft chain wheel of the motor through chain.
Preferably, cut-tobacco drier rotary mechanism (6) includes driving motor, reducing gear box, sprocket, chain, gyro wheel, raceway, sprocket one sets up on the driving motor main shaft, and another is connected with arbitrary gyro wheel through the transmission shaft, and the transmission shaft sets up on frame subassembly (1) of a cut-tobacco drier (8) bottom through bearing and bearing frame, the chain sets up on two sprockets, the gyro wheel sets up on frame subassembly (1) of a cut-tobacco drier (8) bottom through the wheel seat symmetry, the raceway then sets up on a cut-tobacco drier (8) around the whole circle, and a cut-tobacco drier (8) sets up on the gyro wheel through the raceway, arbitrary gear connection sprocket, sprocket pass through the chain meshing and connect motor spindle sprocket, and the motor drives through sprocket chain transmission and gyro wheel cooperation raceway and cuts with the rotation of a cut-tobacco drier (8).
The invention has the beneficial effects that:
1. the invention utilizes the characteristic of fast air flow drying dehydration, high-temperature hot air penetrates into the drying cylinder from bottom to top along the radial direction of the drying cylinder, controllable high-temperature air flow penetrating into the drying cylinder uniformly penetrates under the axial inclination angle of the dried cylinder and the high-point throwing dredging action of a heat exchange shoveling plate in the cylinder to assist in supporting and loosening materials, uniformly heating and drying the materials, and realizing the purpose of high-efficiency high-quality dehydration of the cut tobacco by combining the cross-flow hot air section drying with the traditional cut tobacco dryer.
2. The sheet type cut tobacco dryer with the flow-through section can increase the contact area between cut tobacco and air, improve the dehydration efficiency and improve the cut tobacco filling value; and the thin sheet cut tobacco drying of the traditional structure closely connected with the cross-flow drying section fully exerts the characteristics of the thin sheet cut tobacco drying, the aroma of the material is exposed, the smoke smell becomes mellow, and the water content is uniform, can effectively remove the green miscellaneous gas in the material, reduce the irritation, improve the cleanliness and the mellowness of the cut tobacco, obviously improve the quality of the cut tobacco, and improve the smoke evaluation data of the cut tobacco.
Drawings
FIG. 1 is a schematic diagram of the principles of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic view of the connection structure between the hot air system (7) and the pipeline control cabinet (2) according to the present invention;
FIG. 4 is a second schematic view of the overall structure of the present invention;
FIG. 5 is a schematic view showing the overall structure of the components of the guide cylinder (4) according to the present invention;
FIG. 6 is a schematic view of the overall structure of the hot air system (7) components of the present invention;
reference numbers in the figures: the device comprises a frame component, a pipeline control cabinet, a front chamber, a guide cylinder, a wind cover, a tobacco drying cylinder rotating mechanism, a hot air system, a tobacco drying cylinder, a rear chamber, a steam dust extraction box, a moisture exhaust air pipe, a rotating joint, a shovelling plate, an air heat exchanger, a fan 72, a hot air pipe 73, and a flow through pipe 74, wherein the front chamber is 3, the guide cylinder 4, the wind cover 5, the tobacco drying cylinder rotating mechanism 6, the hot air system 7, the tobacco drying cylinder 8, the rear chamber 9, the steam dust extraction box 10, the moisture exhaust.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings.
The sheet cut-tobacco drying equipment with the flow-through section comprises a rack assembly 1, a cut-tobacco drying device arranged on the rack assembly 1, and a pipeline control cabinet 2 arranged on one side of the rack assembly 1, wherein the cut-tobacco drying device is in signal connection with a control device and mainly comprises a front chamber 3, a material guide cylinder 4, a fan cover 5, a cut-tobacco drying cylinder rotating mechanism 6, a hot air system 7, a cut-tobacco drying cylinder 8, a rear chamber 9, a steam-dust extraction box 10 and a moisture exhaust air pipe 11, wherein the front chamber 3 is arranged at the front ends of the cut-tobacco drying cylinder 8 and the fan cover 5; the rear chamber 9 is arranged at the rear ends of the silk drying cylinder 8 and the fan cover 5; the material guide cylinder 4 is arranged at the front end of the cut tobacco drying cylinder 8 and is coaxial with the cut tobacco drying cylinder 8; a sealing ring is arranged at the joint of the front chamber 3 and the material guide cylinder 4; the steam dust extraction box 10 is arranged above the rear chamber 9; the hot air system 7 is respectively connected with the front chamber 3 and the steam dust extraction box 10.
Furthermore, the front chamber 3 is a feeding end of cut tobacco or cut stems, hot air flows through the lower part of the front chamber 3 and is input into the material guide cylinder 4, and a sealing ring is arranged at the joint of the front chamber 3 and the material guide cylinder 4 to prevent heat and the cut tobacco or the cut stems from leaking; one side of antechamber 3 is provided with row damp tuber pipe 11, and arranges damp tuber pipe 11 and is provided with temperature and humidity sensor and control valve on, can detect the humiture of row damp wind and control row damp amount of wind size.
Furthermore, shoveling plates 41 are radially arranged on the circumference of the inner wall of the guide cylinder 4, and the length of each shoveling plate 41 is not greater than that of the guide cylinder 4.
Further, the guide cylinder 4 is arranged at the front end of the silk drying cylinder 8, is made of a fine mesh cylinder woven by metal wires, is connected with the silk drying cylinder 8, and is of a straight cylinder structure with two open ends, one end of the guide cylinder 4 is a feeding end, one end of the silk drying cylinder 8 is a discharging end, the outsides of the feeding end and the discharging end are respectively and coaxially provided with a silk drying cylinder rotating mechanism 6, and the silk drying cylinder rotating mechanism 6 drives the guide cylinder 4 and the silk drying cylinder 8 to do rotating motion.
Further, the hot air system 7 comprises an air heat exchanger 71, a fan 72, a hot air pipe 73 and a flow through pipe 74, wherein the hot air pipe 73 and the flow through pipe 74 are provided with a control valve, a temperature and humidity sensor and a flow meter, and the flow through pipe 74 and the guide cylinder 4 are perpendicular to each other.
Specifically, an air outlet of the air heat exchanger 71 is connected to an air inlet of a fan 72, the air outlet of the fan 72 is connected with a hot air pipe 73, the hot air pipe 73 divides the flow at the top of the cut-tobacco drying cylinder 8, wherein a flow through pipe 74 moves forwards along the axial direction of the cut-tobacco drying cylinder 8, and passes through the bottom of the front chamber 3 around one side of the front chamber 3 and is arranged below the material guide cylinder 4 from bottom to top; the hot air pipe 73 is connected to the steam dust extraction box 10 axially backwards along the cut tobacco drying cylinder 8; the hot air duct 73 is provided with a control valve, a temperature sensor, and a flow meter.
Further, the fan housing 5 divides the cut tobacco drying device into three separate areas, including a flow passing area composed of the front chamber 3, the material guide cylinder 4 and the flow passing pipe 74, a cut tobacco drying area composed of the cut tobacco drying cylinder 8, the hot air pipe 73 and the steam dust extraction box 10, and a discharge area composed of the rear chamber 9, wherein the flow passing pipe 74 and the hot air pipe 73 are respectively connected with the flow passing area and the cut tobacco drying area.
Furthermore, one side of the fan cover 5 is provided with an observation door; a rotary joint 12 which is coincident with the axial lead of the silk drying cylinder 8 is also arranged outside the silk drying cylinder; the outer parts of the fan cover 5 and the cut tobacco drying cylinder 8 are provided with heat insulation layers; the lower end of the rear chamber 9 is provided with a discharge hole; the moisture exhaust air pipe 11 is provided with a control valve, a temperature and humidity sensor and a flow meter; the control device is a single chip microcomputer, a programmable logic controller, a PC (personal computer) or a PLC (programmable logic controller).
The inner wall of the material guide cylinder 4 is provided with shoveling plates 41 which are uniformly distributed along the circumference of the inner wall of the material guide cylinder 4.
The shovelling plate 41 is in a spiral shape, the rotating direction of the shovelling plate 41 is opposite to the rotating direction of the material guide cylinder 4 and the cut-tobacco drying cylinder 8, and the length of the shovelling plate 41 is not more than that of the material guide cylinder 4.
The aperture of the mesh of the material guide cylinder 4 is not larger than the width of the cut tobacco, so that the cut tobacco is prevented from leaking into the bottom of the front chamber 3 and the fan cover 5.
The included angle between the shoveling plate 41 and the tangent of the circumference of the guide cylinder 4 is 45-90 degrees.
The material guide cylinder 4 is made of a fine mesh cylinder woven by metal wires, so that hot air can conveniently enter the material guide cylinder 4.
The air hood 5 divides the cut tobacco drying device into three separate areas, including a flow passing area consisting of a front chamber 3, a material guide cylinder 4 and a flow passing pipe 74, a cut tobacco drying area consisting of a cut tobacco drying cylinder 8, a hot air pipe 73 and a steam dust pumping box 10, and a discharge area consisting of a rear chamber 9, wherein the flow passing pipe 74 and the hot air pipe 73 are respectively connected with the flow passing area and the cut tobacco drying area.
An observation door is arranged on one side of the fan cover 5, so that the working condition of the cut tobacco drying cylinder rotating mechanism 6 can be observed conveniently, problems can be found in time, and the maintenance can be carried out in time.
The cut tobacco drying cylinder rotating mechanism 6 has two structural modes: the first structural mode is chain transmission and gear transmission; the second structure is chain transmission and roller transmission.
The first structural mode of the silk drying cylinder rotating mechanism 6 comprises a driving motor, a reduction gearbox, chain wheels, chains, gears and racks, wherein one chain wheel is arranged on a main shaft of the driving motor, the other chain wheel is connected with any gear through a transmission shaft, the transmission shaft is arranged on a rack assembly 1 at the bottom of a silk drying cylinder 8 through a bearing and a bearing seat, the chains are arranged on the two chain wheels, the gears are symmetrically arranged on the rack assembly 1 at the bottom of the silk drying cylinder 8 through gear seats, the racks are arranged on the silk drying cylinder 8 around the whole circle of the outer wall, the silk drying cylinder 8 is arranged on the gears through rack meshing, any gear is connected with the chain wheels, the chain wheels are connected with a main shaft chain wheel through chain meshing, and the motor drives the silk drying cylinder 8.
The second structural mode of the cut-tobacco drying cylinder rotating mechanism 6 comprises a driving motor, a reduction gearbox, a chain wheel, a chain, a roller and a roller path, one chain wheel is arranged on a main shaft of the driving motor, the other chain wheel is connected with any roller through a transmission shaft, the transmission shaft is arranged on a rack component 1 at the bottom of the wire drying cylinder 8 through a bearing and a bearing seat, the chain is arranged on the two chain wheels, the idler wheels are symmetrically arranged on the rack component 1 at the bottom of the wire drying cylinder 8 through wheel seats, the roller path is arranged on the silk drying cylinder 8 in a way of surrounding a whole circle, the silk drying cylinder 8 is arranged on the roller wheel through the roller path, any gear is connected with a chain wheel, the chain wheel is meshed with a motor main shaft chain wheel through a chain, the motor drives the silk drying cylinder 8 to rotate through chain transmission of the chain wheel and the matching of the roller wheel and the roller wheel with the roller path, and the front and the back of the roller path are provided with a large catch wheel and a small catch wheel, so that the roller path is prevented from moving from the roller wheel in the rotating process of the silk drying cylinder 8.
The wire drying cylinder 8 is also externally provided with a rotary joint 12 which is coincident with the axial lead of the wire drying cylinder.
The hot air pipe 73 is provided with a control valve, a temperature sensor and a flow meter.
The lower end of the rear chamber 9 is provided with a discharge hole.
And a control valve, a temperature and humidity sensor and a flow meter are arranged on the moisture exhaust air pipe 11.
And heat insulation layers are arranged outside the fan cover 5 and the cut tobacco drying cylinder 8.
The control device is a single chip microcomputer, a programmable logic controller, a PC (personal computer) or a PLC (programmable logic controller).
The working mode of the invention is as follows: the operation of the air heat exchanger 71 is started in advance, high-temperature steam is supplied to the rotary joint 12, cold air is sucked by the fan 72 and enters the air heat exchanger 71 for heating, heated hot air enters the hot air pipe 73 through the fan 72, the hot air is divided at the top of the cut tobacco drying cylinder 8, and a part of the hot air forms through-flow air from bottom to top through the through-flow pipe 74; the other part enters the steam dust extraction box 10 through the hot air pipe 73, and forms counter-flow air through the fan inside the steam dust extraction box 10. Then, the rotating mechanism 5 is started to drive the material guide cylinder 4 and the cut tobacco drying cylinder to rotate in the fan cover 5, cut tobacco to be dried enters the material guide cylinder 4 from the feeding end of the front chamber 3, the shoveling plate 41 shovels the cut tobacco or cut stems in the material guide cylinder 8 to a high position and then falls freely, so that the cut tobacco is loosened, the contact area between hot air and the cut tobacco or the cut stems is increased, the drying is accelerated, meanwhile, the shoveling plate 41 is spiral, the rotating direction of the shoveling plate 41 is opposite to that of the material guide cylinder 4 and the cut tobacco drying cylinder 8, the cut tobacco moves towards the direction of the discharging end, and the cut tobacco or the cut stems are prevented from being accumulated at the feeding end.
In the process, steam generated after the cut tobacco or the cut stems are heated and dried by hot air is discharged from the moisture discharging air pipe 11, so that the humidity in the cut tobacco drying cylinder 8 is prevented from being increased, and the drying effect is poor; the flow penetration pipe 74 blows hot air from the lower end of the front chamber 3, so that the hot air forms flow penetration air in the material guide cylinder 4, and the tobacco shreds or the cut stems are turned over by matching with the shovelling plate 41, so that the contact area of the hot air and the tobacco shreds or the cut stems is increased, and the drying speed is increased.
The pipeline control cabinet 15 is provided with compressed air and steam pipelines. The steam pipeline is a device which can supply stable steam flow to a hot air system of the drying cylinder according to the process requirement of tobacco shred drying. The steam pipeline is divided into two paths after the steam enters the cut tobacco dryer. One path of steam enters a drying cylinder shoveling plate 41, and enters a drying cylinder according to the working state required by the tobacco shred drying process through filtration, steam-water separation and control of an adjusting valve. The condensed water after heat exchange is led out from the rotary joint 12, passes through a filter and a drain valve, and is discharged. The other path of steam is filtered, subjected to steam-water separation, and then controlled by an adjusting valve to enter an air heat exchanger 71 of a hot air system, and condensed water after heat exchange is discharged after passing through a filter and a drain valve. Compressed air pipelines are mainly used for automatic control of steam pipeline valves. The compressed air entering the cut tobacco dryer is filtered and decompressed and then enters the electromagnetic valve island, the opening degree of the membrane valve on the steam pipeline is controlled according to the pressure set value, and the steam entering the cut tobacco dryer 8 and the air heat exchanger 71 is effectively controlled. And a condensed water discharge branch of the drying cylinder shoveling plate 12 is further controlled by compressed air of the electromagnetic valve island.
The hot air system 7 comprises an air heat exchanger 71, a fan 72, a hot air pipe 73 and a flow through pipe 74, cold air is sucked by the fan 72 and enters the air heat exchanger 71 for heating, the heated hot air enters the hot air pipe 73 through the fan 72, the hot air is divided at the top of the cut-tobacco drying cylinder 8, and part of the hot air forms flow through air from bottom to top through the flow through pipe 74; the other part enters the steam dust extraction box 10 through the hot air pipe 73 to prevent the condensation of the rotary filter screen, and then is discharged through the dust removal system. The hot air pipe 73 and the flow penetration pipe 74 are provided with a control valve, a temperature and humidity sensor and a flow meter, and the flow penetration pipe 74 is vertical to the guide cylinder 4. And setting a hot air valve position at an operation terminal, and adjusting the valve position of a butterfly valve through calculation by comparing the valve position with the valve position in a feedback manner, so as to change the ratio of cold air to hot air and change the temperature of hot air in the drying cylinder. When the valve position is changed by disturbance, the system automatically adjusts the valve position to a set value.
The moisture control system in the cut tobacco dryer adopts cascade control, a steam pressure set value entering the shoveling plate 41 is obtained through a first-stage PID operation according to a difference value between moisture setting and moisture feedback, the steam pressure set value is compared with steam pressure entering the shoveling plate, and the difference value is set for a valve position of the electric regulating valve, so that the valve position is kept near the set value, and the purpose of stabilizing the steam pressure is met.
The rotating speed of the silk drying cylinder 8 controls an independent single-ring control system, and according to different stages of the operation of the silk drying machine, the PLC automatically sets the rotating speed of the silk drying cylinder, changes the output frequency of the silk drying cylinder and enables the silk drying cylinder to meet the requirement of a set value.
Finally, it should be noted that, in the last place, the conception, the specific structure and the technical effects of the present invention have been clearly and completely described in conjunction with the embodiments and the accompanying drawings so as to fully understand the objects, the features and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection and connection relationships mentioned herein do not mean that the components are directly connected, but mean that a more preferable connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Claims (10)
1. The utility model provides a take sheet metal of cross flow section to dry by fire silk equipment, includes frame subassembly (1), and sets up the device of drying by fire silk on frame subassembly (1) to and set up in pipeline switch board (2) of frame subassembly (1) one side, dry by fire silk device signal connection controlling means, its characterized in that: the tobacco drying device mainly comprises a front chamber (3), a material guide cylinder (4), a fan cover (5), a tobacco drying cylinder rotating mechanism (6), a hot air system (7), a tobacco drying cylinder (8), a rear chamber (9), a steam dust extraction box (10) and a moisture exhaust air pipe (11), wherein the front chamber (3) is arranged at the front ends of the tobacco drying cylinder (8) and the fan cover (5); the rear chamber (9) is arranged at the rear ends of the silk drying cylinder (8) and the fan cover (5); the material guide cylinder (4) is arranged at the front end of the cut tobacco drying cylinder (8) and is coaxial with the cut tobacco drying cylinder (8); a sealing ring is arranged at the joint of the front chamber (3) and the material guide cylinder (4); the steam dust extraction box (10) is arranged above the rear chamber (9); the hot air system (7) is respectively connected with the front chamber (3) and the steam dust extraction box (10).
2. A sheet tobacco-drying apparatus with a flow-through section according to claim 1, wherein: the front chamber (3) is a feeding end of cut tobacco or cut stems, hot air flows through the lower part of the front chamber (3) and is input into the material guide cylinder (4), and a sealing ring is arranged at the joint of the front chamber (3) and the material guide cylinder (4) to prevent heat and the cut tobacco or the cut stems from leaking; one side of the antechamber (3) is provided with a moisture exhaust air pipe (11), and the moisture exhaust air pipe (11) is provided with a temperature and humidity sensor and a control valve, so that the temperature and humidity of moisture exhaust air can be detected and the moisture exhaust air volume can be controlled.
3. A sheet tobacco-drying apparatus with a flow-through section according to claim 1, wherein: the circumference of the inner wall of the material guide cylinder (4) is radially provided with shoveling plates (41), and the length of each shoveling plate (41) is not more than that of the material guide cylinder (4).
4. A sheet tobacco-drying apparatus with a flow-through section according to claim 1, wherein: the guide cylinder (4) is arranged at the front end of the silk drying cylinder (8), a fine mesh cylinder woven by metal wires is made, is connected with the silk drying cylinder (8) and is of a straight cylinder structure with two open ends, one end of the guide cylinder (4) is a feeding end, one end of the silk drying cylinder (8) is a discharging end, a silk drying cylinder rotating mechanism (6) is coaxially arranged outside the feeding end and the discharging end respectively, and the silk drying cylinder rotating mechanism (6) drives the guide cylinder (4) and the silk drying cylinder (8) to do rotating motion.
5. A sheet tobacco-drying apparatus with a flow-through section according to claim 1, wherein: the hot air system (7) comprises an air heat exchanger (71), a fan (72), a hot air pipe (73) and a flow through pipe (74), wherein the hot air pipe (73) and the flow through pipe (74) are provided with a control valve, a temperature and humidity sensor and a flow meter, and the flow through pipe (74) is perpendicular to the material guide cylinder (4).
6. A sheet tobacco-drying apparatus with a flow-through section according to claim 5, wherein: an air outlet of the air heat exchanger (71) is connected to an air inlet of a fan (72), an air outlet of the fan (72) is connected with a hot air pipe (73), the hot air pipe (73) is divided at the top of the cut-tobacco drying cylinder (8), wherein a flow through pipe (74) is arranged below the material guide cylinder (4) from bottom to top through the bottom of the front chamber (3) around one side of the front chamber (3) and forwards along the axial direction of the cut-tobacco drying cylinder (8); the hot air pipe (73) is connected to the steam dust extraction box (10) along the axial direction of the wire drying cylinder (8) backwards; the hot air pipe (73) is provided with a control valve, a temperature sensor and a flow meter.
7. A sheet tobacco-drying apparatus with a flow-through section according to claim 1, wherein: the tobacco drying device is divided into three divided areas by the fan cover (5), and the three divided areas comprise a flow passing area consisting of a front chamber (3), a material guide cylinder (4) and a flow passing pipe (74), a tobacco drying area consisting of a tobacco drying cylinder (8), a hot air pipe (73) and a steam-dust extraction box (10), and a discharge area consisting of a rear chamber (9), wherein the flow passing pipe (74) and the hot air pipe (73) are respectively connected with the flow passing area and the tobacco drying area.
8. A sheet tobacco-drying apparatus with a flow-through section according to claim 1, wherein: an observation door is arranged on one side of the fan cover (5); a rotary joint (12) which is coincident with the axial lead of the silk drying cylinder (8) is also arranged outside the silk drying cylinder; the outer parts of the fan cover (5) and the wire drying cylinder (8) are provided with heat insulation layers; the lower end of the rear chamber (9) is provided with a discharge hole; the moisture exhaust air pipe (11) is provided with a control valve, a temperature and humidity sensor and a flow meter; the control device is a single chip microcomputer, a programmable logic controller, a PC (personal computer) or a PLC (programmable logic controller).
9. A sheet tobacco-drying apparatus with a flow-through section according to claim 1, wherein: the cut-tobacco drying cylinder rotating mechanism (6) comprises a driving motor, a reduction gearbox, chain wheels, chains, gears and racks, wherein one chain wheel is arranged on a main shaft of the driving motor, the other chain wheel is connected with any gear through a transmission shaft, the transmission shaft is arranged on a rack assembly (1) at the bottom of the cut-tobacco drying cylinder (8) through a bearing and a bearing seat, the chains are arranged on the two chain wheels, the gears are symmetrically arranged on the rack assembly (1) at the bottom of the cut-tobacco drying cylinder (8) through gear seats, the racks are arranged on the cut-tobacco drying cylinder (8) in a whole circle around the outer wall, the cut-tobacco drying cylinder (8) is arranged on the gears through rack meshing, any gear is connected with the chain wheels, the chain wheels are connected with a main shaft chain wheel of the motor through chain transmission and.
10. A sheet tobacco-drying apparatus with a flow-through section according to claim 1, wherein: the tobacco shred drying cylinder rotating mechanism (6) comprises a driving motor, a reduction gearbox, chain wheels, chains, rollers and a roller path, wherein one chain wheel is arranged on a main shaft of the driving motor, the other chain wheel is connected with any roller wheel through a transmission shaft, the transmission shaft is arranged on a rack assembly (1) at the bottom of the tobacco shred drying cylinder (8) through a bearing and a bearing seat, the chains are arranged on the two chain wheels, the roller wheels are symmetrically arranged on the rack assembly (1) at the bottom of the tobacco shred drying cylinder (8) through wheel seats, the roller path is arranged on the tobacco shred drying cylinder (8) through a whole ring, the tobacco shred drying cylinder (8) is arranged on the roller wheels through the roller path, any gear is connected with the chain wheels, the chain wheels are connected with a motor main shaft chain wheel through chain meshing, and the motor drives the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011183658.2A CN112273699A (en) | 2020-10-29 | 2020-10-29 | Sheet cut tobacco drying equipment with flow passing section |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011183658.2A CN112273699A (en) | 2020-10-29 | 2020-10-29 | Sheet cut tobacco drying equipment with flow passing section |
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| Publication Number | Publication Date |
|---|---|
| CN112273699A true CN112273699A (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011183658.2A Pending CN112273699A (en) | 2020-10-29 | 2020-10-29 | Sheet cut tobacco drying equipment with flow passing section |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113208142A (en) * | 2021-02-04 | 2021-08-06 | 湖北中烟工业有限责任公司 | Multifunctional tobacco shred processing system |
| CN116105476A (en) * | 2023-02-28 | 2023-05-12 | 厦门烟草工业有限责任公司 | Dryer and drying method thereof |
| JP2023528736A (en) * | 2021-06-09 | 2023-07-06 | 雲南中煙工業有限責任公司 | Sieving and moistening integrated device and method for sieving and moistening of mid-bones |
-
2020
- 2020-10-29 CN CN202011183658.2A patent/CN112273699A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113208142A (en) * | 2021-02-04 | 2021-08-06 | 湖北中烟工业有限责任公司 | Multifunctional tobacco shred processing system |
| JP2023528736A (en) * | 2021-06-09 | 2023-07-06 | 雲南中煙工業有限責任公司 | Sieving and moistening integrated device and method for sieving and moistening of mid-bones |
| JP7372484B2 (en) | 2021-06-09 | 2023-10-31 | 雲南中煙工業有限責任公司 | Integrated sieve humidity control device and method for sieve humidity control of backbone |
| CN116105476A (en) * | 2023-02-28 | 2023-05-12 | 厦门烟草工业有限责任公司 | Dryer and drying method thereof |
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