CN113576013A

CN113576013A - Tobacco processing system and processing method

Info

Publication number: CN113576013A
Application number: CN202110955450.6A
Authority: CN
Inventors: 王洁; 王自勇; 许兰贵
Original assignee: Henan Aolansite New Energy Technology Co ltd
Current assignee: Henan Aolansite New Energy Technology Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2021-11-02

Abstract

The invention belongs to the technical field of tobacco processing, and discloses a tobacco processing system which comprises a tobacco loading production line, a drying room and a screening and packaging production line which are sequentially arranged; the tobacco loading assembly line is used for loading tobacco leaves into a tobacco container; the drying room is used for baking tobacco in the tobacco container; the screening and packaging assembly line is used for unloading, screening and packaging the cured tobacco in the tobacco container; a method of tobacco processing is also disclosed. According to the tobacco container drying machine, tobacco leaves can be loaded into the tobacco container, the tobacco container with the tobacco leaves is dried, and the tobacco which is baked in the tobacco container is unloaded, screened and packaged through the tobacco loading assembly line, the drying room and the screening and packaging assembly line, mechanization is basically achieved in the whole process, labor input is greatly reduced, cost is reduced, processing efficiency is improved, and the four-section type drying process is adopted, so that the tobacco quality is better, and the color is better.

Description

Tobacco processing system and processing method

Technical Field

The invention belongs to the technical field of tobacco processing, and particularly relates to a tobacco processing system and a tobacco processing method.

Background

The traditional tobacco processing mode is that picked tobacco leaves are hung on tobacco stems after being bundled and then are sent into a redrying machine or a drying room for drying, namely, hanging stem redrying, and then are packaged, and the specific technological process is as follows: tobacco weaving, namely bundling and tobacco weaving through manual work or through a simple tool; loading a kang, and manually hanging the tobacco stems in an oven or a drying room; baking, namely baking by adopting a traditional three-section type drying method; taking out of the kang, and taking the tobacco leaves out of the oven by one rod after drying and moisture regaining are finished; sorting: sorting the baked tobacco, and removing unqualified tobacco; packaging: and (4) bundling the qualified tobacco into a lump or packaging the lump with a packaging box.

The processing mode is simple in process, most procedures are manually operated, a set of tobacco processing system capable of realizing mechanization is not provided, the labor intensity is high, the drying efficiency is low, the cost is high, the adopted redrying machine or drying room needs to uniformly and orderly stack the tobacco leaves for baking, the baking effect is poor, and the half-cooked condition is easy to occur.

Disclosure of Invention

The invention aims to provide a tobacco processing system and a tobacco processing method, which solve the problems that the existing tobacco processing technology is inconvenient to realize the processing of tobacco and the tobacco baking effect is poor.

In order to achieve the purpose, the invention adopts the following technical scheme:

on one hand, the tobacco processing system comprises a tobacco loading assembly line, a drying device and a screening and packaging assembly line which are sequentially arranged;

the tobacco loading assembly line is used for loading tobacco leaves into a tobacco container; the drying device is used for baking tobacco in the tobacco container entering the drying device; the screening and packaging assembly line is used for unloading, screening and packaging the cured tobacco in the tobacco container;

wherein, the drying device comprises a drying room and a tobacco container; a baking chamber and a heating chamber are arranged in the drying room; an inlet and an outlet are formed in one side of the baking chamber, guide rail parts distributed along the length direction of the baking chamber are arranged in the baking chamber, one end of each guide rail part is connected with the inlet and the outlet, and a plurality of tobacco containers can be placed on the guide rail parts side by side along the distribution direction of the guide rail parts; an air heating device is arranged in the heating chamber, and the air heating device is provided with an air inlet end and a hot air output end; the tobacco container is in sliding fit with the guide rail part and is provided with a ventilation structure, so that an airflow channel with ventilation at the top end and the bottom end and closed peripheral side is formed in the tobacco container through the ventilation structure; the tobacco containers are arranged side by side and the baking chamber is arranged above the tobacco containers and forms a return air channel under the tobacco containers, the return air channel is communicated with the air inlet end of the air heating device, and the hot air channel is communicated with the hot air outlet end of the air heating device.

In a possible implementation mode, the tobacco container comprises a box-shaped frame, a first side net is arranged on the back side of the box-shaped frame, second side nets are arranged on the top and the bottom of the box-shaped frame respectively, side plates are arranged on the left side and the right side of the box-shaped frame respectively, a box door frame is connected to the front side of the box-shaped frame, a door baffle plate matched with the box door frame is arranged on the box door frame, and the first side net and the second side net form the ventilation structure.

In a possible implementation, the tobacco container further comprises at least one tobacco securing member, each tobacco securing member having a plurality of insertion ends;

the door baffle is equipped with the first jack of multirow respectively along its direction of height, two door frame corresponds every row respectively the multirow second jack has been seted up to first jack, every first jack and second jack all with the end phase-match is inserted to tobacco mounting to make a plurality of inserting of tobacco mounting insert the tobacco container internal fixation tobacco.

In a possible implementation manner, the guide rail component comprises two slide rails which are respectively arranged at two sides of the baking chamber through slide rail mounting racks, and the two slide rails are positioned between the two slide rail mounting racks; each container is in sliding fit with the two sliding rails through a moving wheel arranged at the bottom;

one ends of the two slide rail mounting racks, which are adjacent to the inlet and the outlet, are detachably provided with first side sealing parts, so that the first side sealing parts and the side wall of the baking chamber are enclosed to form the hot air channel; the first side sealing component comprises a sliding rail front baffle, a mounting plate, a lower sealing plate, an upper sealing plate and an upper pressure plate; a slide rail front baffle is arranged between the two slide rail mounting racks, mounting plates are respectively fixed at the tops of the two slide rail mounting racks, a lower sealing plate with an L-shaped structure is detachably connected between the two mounting plates, the mounting plates are limited between the two slide rail mounting racks by the lower sealing plate, an upper sealing plate is detachably connected to the lower sealing plate, and an upper pressing plate is detachably connected to the upper sealing plate;

a second side sealing part is arranged on the inner side of each slide rail mounting rack along the length direction of the slide rail mounting rack; the second side sealing component comprises a side sealing plate, a rubber sealing strip and a sealing strip pressing plate; the side sealing plate is fixed on the inner side of the slide rail mounting rack, and two ends of the side sealing plate are fixed between the mounting plate and the slide rail mounting piece; and one side of the side sealing plate, which is adjacent to the container, is fixed with a rubber sealing strip through a sealing strip pressing plate.

In a possible implementation manner, the drying room is divided into the baking chamber and the heating chamber by a partition board; the top end of the partition board is provided with a return air inlet, the return air inlet is communicated with the return air channel, the bottom end of the partition board is provided with a hot air outlet, and the hot air outlet is communicated with the hot air channel.

In a possible implementation manner, the tobacco loading assembly line comprises a tobacco conveying mechanism and a loading and transferring mechanism which are mutually connected, and a tobacco leaf smashing component is arranged on the tobacco conveying mechanism;

the loading and transferring mechanism comprises a first transferring frame, a second transferring frame and a turning frame which are matched with the tobacco container, the first transferring frame is connected with the tobacco conveying mechanism, and the first transferring frame and the second transferring frame are arranged side by side; the top of the first transfer frame is provided with a first guide wheel component, the top of the second transfer frame is provided with a second guide wheel component, and the guide directions of the first guide wheel component and the second guide wheel component are consistent with the parallel direction of the transfer frames; the tobacco container overturning device comprises a overturning frame, a second transferring frame, a pushing component and a tobacco container, wherein the overturning frame is of an L-shaped structure and is hinged to one side of the second transferring frame, the pushing component is connected between the overturning frame and the second transferring frame and used for pushing the overturning frame to overturn, and the tobacco container guided to the overturning frame is overturned to the side of the second transferring frame through overturning of the overturning frame.

In a possible implementation manner, the overturning frame comprises a first overturning bracket and a second overturning bracket which are fixed and vertical to each other, the first overturning bracket and the second overturning bracket are fixedly connected, and the joint of the first overturning bracket and the second overturning bracket is hinged with the second transfer frame through a hinge shaft;

the overturning frame is provided with a station to be overturned and an overturned station; when the turnover frame is positioned at a station to be turned over, the first turnover support is vertical to the second transfer frame, and the second turnover support is parallel to the second transfer frame; when the turnover frame is located at a turnover rear station, the first turnover support is parallel to the second transfer frame, and the second turnover support is perpendicular to the second transfer frame.

In a possible implementation manner, the tobacco conveying mechanism is provided with a first belt conveying channel, and the tobacco leaf smashing component is arranged in the first belt conveying channel; the tobacco leaf smashing component comprises a rotating shaft which is rotatably connected in the first belt conveying channel, and a plurality of V-shaped rods which are uniformly distributed are fixed on the rotating shaft;

the first belt conveying channel is provided with height adjusting openings corresponding to two sides of the rotating shaft respectively, the height adjusting openings are connected with mounting boxes in a sliding mode, two ends of the rotating shaft penetrate through the height adjusting openings and extend into the mounting boxes on the corresponding sides, and a driving motor in transmission connection with the rotating shaft is arranged in one of the mounting boxes; every the bottom of install bin rotates and is connected with fore-and-aft adjusting screw, and adjusting screw's outside screw thread has cup jointed the limiting plate, and the limiting plate is fixed outside tobacco conveying mechanism, and adjusting screw's bottom mounting has the hand wheel.

In a possible implementation manner, the screening and packaging assembly line comprises a guide rail frame, a first-stage lifting conveyor, a second-stage lifting conveyor, a screening device, a third-stage lifting conveyor and a packaging device;

the tobacco containers are arranged in a plurality and are all matched on the guide rail frame in a sliding manner, the bottom of each tobacco container can be opened, and one end of the guide rail frame is provided with a discharging station; the first-stage lifting conveyor is provided with a receiving end and a lifting end, the receiving end is positioned below the unloading station of the guide rail frame, the lifting end is connected with one end of the second-stage lifting conveyor, the other end of the second-stage lifting conveyor is connected with a feeding hole of the screening device, a discharging hole of the screening device is connected with one end of the third-stage lifting conveyor, and the other end of the third-stage lifting conveyor is connected with a tobacco inlet of the packing device;

the packing device comprises a box body with a compression cavity arranged therein, the upper end and the lower end of the box body are respectively provided with the tobacco inlet and the packing outlet, and the tobacco inlet and the packing outlet are communicated with the compression cavity; the box body is provided with a compression part and a bag pushing part; the compression component is provided with a compression end which is in sliding fit in the compression cavity so as to compress the tobacco entering the compression cavity through the compression end of the compression component; the pushing component is provided with a pushing end positioned in the lower end of the compression cavity so as to push the compressed blocky tobacco out of the packing outlet through the pushing end of the pushing component;

the packaging outlet is provided with a first box door which can be opened; the bottom of the compression cavity is provided with a plurality of parallel wire placing grooves, the side wall of the compression cavity in the extending direction of the wire placing grooves is provided with a plurality of wire threading grooves, each wire threading groove penetrates through the side wall of the box body and is respectively communicated with the corresponding wire threading groove, and a packing rope is arranged through the wire threading grooves and the wire placing grooves;

the compression member comprises a first linear drive and a compression plate; the first linear driving piece is arranged at the top of the box body, the driving end of the first linear driving piece penetrates into the compression cavity and is connected with the compression plate, and the compression plate is in sliding fit in the compression cavity; the bottom of the compression plate is connected with a plurality of pressing plates through a plurality of support plates parallel to the wire placing grooves, and a gap through which a baling rope can pass is formed between every two adjacent pressing plates.

On the other hand, a tobacco processing method is also provided, which is based on any one of the technical schemes and comprises the following steps:

step S1, the picked tobacco leaves are put into a tobacco conveying mechanism of a tobacco loading assembly line and are conveyed to a transition conveying mechanism through a conveying belt in the tobacco conveying mechanism, and meanwhile, the conveyed tobacco leaves are smashed by a smashing component on the tobacco conveying mechanism;

s2, conveying the tobacco leaves dropped on the scattered tobacco leaves by a transition conveying mechanism, dropping the conveyed tobacco leaves into a tobacco container which is laid flat and opened below, and filling tobacco in the tobacco container;

step S3, after the container is filled to the set loading weight, the tobacco in the container is fixed through the tobacco fixing piece, then the container is pushed to the second transfer frame from the first transfer frame, the pushing component is started, the tobacco container is overturned through the overturning frame by the pushing component, the posture of the overturned tobacco container is converted into a standing posture, and then the container is transferred through a forklift;

step S4, placing the tobacco containers on a slide rail of a drying room, and enabling the tobacco containers to be close to each other side by side;

step S5, drying for 1-3 days in the first stage, wherein the initial heating rate is not more than 1 ℃/h, slowly heating for 6-10 hours with small fire, heating the dry bulb to 37-39 ℃, stabilizing the temperature in the range of 36-40 ℃ with medium and large fire, stabilizing the temperature in the range of 35-37 ℃ with wet bulb, and continuing until all leaves become golden yellow; meanwhile, moisture is discharged through the moisture discharging window, so that the tobacco leaves are prevented from being blackened;

step S6, second stage drying, wherein the drying is carried out for 1-2 days at the heating rate of not more than 1 ℃/h, the heating is slowly carried out for 10-12 hours, the temperature of the dry pellets is heated to 47-49 ℃, the temperature of the wet pellets is stabilized within the range of 46-50 ℃ by intense fire, the temperature difference between the dry pellets and the wet pellets is increased until all the tobacco ribs have no cyan; meanwhile, a large amount of moisture is discharged through the moisture discharging window, so that the tobacco flakes are prevented from being blackened;

step S7, drying for 1-2 days at a heating rate of not more than 1 ℃/h for 8-10 hours in the third stage, heating the dry bulb to 53-55 ℃ and stabilizing at 52-54 ℃, stabilizing the wet bulb at 40-42 ℃, keeping a larger temperature difference between the dry bulb and the wet bulb, and continuing until all leaves become orange; simultaneously, discharging moisture through the moisture discharging window;

step S8, drying for 1-2 days at a heating rate of not more than 1.5 ℃/h in a fourth stage, heating for 10-12 hours with a sharp fire, heating the dry pellets to 67-69 ℃, stabilizing the dry pellets with a small fire at 66-70 ℃, stabilizing the wet pellets with a wet pellet at 43-45 ℃ until all tobacco ribs turn yellow, and stopping the fire to finish drying;

step S9, cooling and dampening, cooling to 49-51 ℃ along with the furnace after drying, stopping wind and dampening for a period of time, and taking the tobacco leaves out of the house after the tobacco ribs are easily broken by hand folding and the tobacco leaves are easily broken by hand rubbing;

step S10, transferring the tobacco container out of the kang to a guide rail frame of a screening and packaging production line through a forklift, moving the tobacco container on the tobacco container to an unloading station of the guide rail frame, opening a bottom cover frame at the bottom of the tobacco container on the unloading station through a limiting part, and enabling the tobacco in the bottom cover frame to fall into a receiving hopper of a primary lifting conveyor;

step S11, after the tobacco enters the receiving hopper, the tobacco is lifted to a higher lifting end along with a conveying belt of a first-level lifting conveyor, and the tobacco is uniformly scattered to a second-level lifting conveyor connected below the second-level lifting conveyor, the tobacco can be conveyed to a drum screening machine through the second-level lifting conveyor, crushed leaves in the tobacco can be separated through screening of the drum screening machine, so that the tobacco meeting the specified size can be discharged through a discharge hole of the drum screening machine and then discharged into a sorting conveyor, the unqualified tobacco is conveyed to the third-level lifting conveyor through manual sorting during conveying, and the tobacco is conveyed to a tobacco inlet of a packing device through the third-level lifting conveyor;

s12, placing a plurality of baling ropes in a plurality of thread placing grooves of the baling device, wherein one end of each baling rope close to the inside penetrates through the outside of the thread placing grooves, paper sheets for packing tobacco are placed at the bottom of the compression cavity, the tobacco enters the compression cavity from a feed hopper of the baling device, and the compression part is controlled by the controller to compress when the tobacco in the compression cavity is basically full or reaches a preset height; and after the compression is finished, the compression state is maintained, an operator enables one end, located on the back side, of the packing ropes to penetrate through the wire passing grooves or the wire passing intervals, the end is enabled to reach the front side and to be bound with the other end, after the packing ropes are all bound, the paper sheets and the formed tobacco are packed and bound together, after the packing is finished, the compression part is retracted through the controller and plays a role of pushing the packing part to enable the tobacco after the packing to be pushed out, and the packing of the tobacco is finished.

Compared with the prior art, the invention has the following beneficial effects:

the tobacco processing system can realize the loading of tobacco leaves into the tobacco container, the drying of the tobacco container filled with the tobacco leaves and the unloading, screening and packaging of the tobacco subjected to curing in the tobacco container through the tobacco loading assembly line, the drying room and the screening and packaging assembly line, basically realizes mechanization in the whole process, greatly reduces the labor input, reduces the cost and improves the processing efficiency.

Moreover, when the drying system is baked, an airflow circulation convenient for drying can be formed, the airflow circulation can enable hot air to enter from the bottom of the tobacco container, and the hot air can act on tobacco in the tobacco container through the inside of the tobacco container and then flows back to the heating chamber through the air return channel to serve as an air source of the air heating device, so that circular baking can be realized, the baking effect is better, the tobacco in the tobacco container is baked more uniformly, and the tobacco only needs to be uniformly paved in the box, and the tobacco is not required to be stacked intentionally, so that the tobacco baking effect is better under the condition that the tobacco is not required to be stacked orderly.

Meanwhile, the first side sealing part and the second side sealing part can seal hot air in the hot air channel, reduce leakage of the hot air, improve drying heat conduction efficiency, furthest ensure heat loss of circulating hot air in the baking chamber, reduce the temperature difference between an upper layer and a lower layer in the hot air channel and the return air channel of the baking chamber, reduce waste of heat energy and effectively shorten baking time.

In addition, the tobacco loading flowing water can realize the loading, the guiding and the posture changing of the tobacco container through the tobacco conveying mechanism and the loading and transferring mechanism, so that the transportation of the tobacco container is facilitated, the working efficiency is improved, and the cost is reduced;

the tobacco processing method can be matched with a tobacco processing system to realize mechanization, and the four-section type baking method is adopted during the drying of the tobacco, so that the tobacco with better color and better tobacco quality can be obtained.

Drawings

FIG. 1 is a schematic diagram of a tobacco processing system according to an embodiment of the present application;

fig. 2 is a schematic perspective view of a drying room of a tobacco processing system according to an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a drying chamber of a tobacco processing system according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of a baking oven of a tobacco processing system according to an embodiment of the present disclosure;

FIG. 5 is a schematic perspective view of a tobacco container of a tobacco processing system according to an embodiment of the present disclosure;

FIG. 6 is a schematic illustration of a tobacco retainer for a tobacco container of a tobacco processing system in accordance with an embodiment of the present disclosure;

FIG. 7 is an enlarged, fragmentary, schematic view of a drying chamber of a tobacco processing system in accordance with an embodiment of the present application, illustrating the configuration of a first side seal member and a second side seal member;

FIG. 8 is a schematic perspective view of a tobacco loading line of a tobacco processing system according to an embodiment of the present application;

fig. 9 is a schematic perspective view of a loading and transferring mechanism of a tobacco loading line of a tobacco processing system according to an embodiment of the present disclosure;

fig. 10 is a schematic perspective view of a tobacco conveying mechanism of a tobacco loading line of a tobacco processing system according to an embodiment of the present disclosure;

FIG. 11 is an enlarged, fragmentary schematic view of a tobacco conveyor of a screen packing line of a tobacco processing system according to an embodiment of the present application;

FIG. 12 is a schematic perspective view of a screening and packaging line of a tobacco processing system according to an embodiment of the present application;

FIG. 13 is a schematic perspective view of a packer assembly of a screening and packing line of a tobacco processing system in accordance with an embodiment of the present disclosure;

FIG. 14 is an enlarged partial schematic view of a packer assembly of a screen packing line of a tobacco processing system in accordance with an embodiment of the present application;

FIG. 15 is a schematic perspective view of another aspect of a packer assembly of a screen packing line of a tobacco processing system in accordance with an embodiment of the present disclosure;

fig. 16 is a graph of tobacco drying curves for a method of tobacco processing according to an embodiment of the present disclosure.

In the figure: 1-a tobacco loading line; 11-a tobacco conveying mechanism; 1101-a first belt conveyor channel; 1102-a rotating shaft; 1103-V-shaped rod; 1104-hand wheel; 1105, installing a box; 1106-height adjustment opening; 1107-limiting plate; 1108-adjusting screw; 12-a transition conveying mechanism; 13-a load transfer mechanism; 1301-a first transfer rack; 1302-a second transfer rack; 1303 — first idler component; 1304-a transition plate; 1305-a third stator member; 1306-a second idler member; 1307-a roll-over stand; 1308-a pushing member;

2-drying room; 21-a baking chamber; 22-a moisture-removing window; 23-a first side seal member; 2301-slide rail front baffle; 2302-lower closure plate; 2303-upper sealing plate; 2304-upper press plate; 2305-mounting plate; 24-a second side seal member; 2401-side sealing plates; 2402-sealing strip pressing plate; 2403-rubber sealing strips; 25-a slide rail; 26-a heating chamber; 2601-an air heating device; 2602-a vent; 2603-a partition; 2604-return air inlet; 2605-a hot air outlet; 27-return air channel; 28-hot air channel;

3-screening and packaging assembly line; 31-installing the ground; 32-a rail mount; 33-a discharge station; 34-a primary lifting conveyor; 35-a receiving hopper; 36-a discharge pit; 37-a secondary lifting conveyor; 38-drum screening machine; 39-a packing device; 3901-a box body; 3902-compression chamber; 3903-feed hopper; 3904 — first linear drive; 3905-compression plate; 3906-push plate; 3907-packing outlet; 3908-arranging a wire groove; 3909-threading slot; 3910-a first door; 3911-a second door; 3912-plate; 3913-platen; 3914 — a second linear drive; 310-a three-level lifting conveyor; 311-a sorting conveyor;

4-tobacco containers; 41-moving wheels; 42-a second side web; 43-a box frame; 44-a door frame; 45-door stops; 46-tobacco fixing element.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

The invention is further described with reference to the following figures and specific embodiments.

Referring to fig. 1-5, an embodiment of the present application provides a tobacco processing system, which includes a tobacco loading line 1, a drying room 2, and a sieving and packaging line 3, which are sequentially arranged; the tobacco loading assembly line 1 is used for loading tobacco leaves into a tobacco container 4; the drying room 2 is used for baking tobacco in the tobacco container 4 which enters the drying room; the screening and packaging assembly line 3 is used for unloading, screening and packaging the tobacco subjected to baking in the tobacco container 4; through tobacco loading assembly line 1, stoving room 2 and screening packing assembly line 3, can realize pack the tobacco leaf into tobacco container 4, dry and unload, screen and pack the tobacco that has passed through the stoving in tobacco container 4 to the tobacco container 4 that is equipped with the tobacco leaf, the whole mechanized that realizes basically has significantly reduced artificial input, and the cost is reduced has improved machining efficiency.

Wherein, the drying room 2 comprises a drying room 2 and a tobacco container 4; a baking chamber 21 and a heating chamber 26 are arranged in the drying room 2; an inlet and an outlet are arranged on one side of the baking chamber 21, and guide rail parts distributed along the length direction of the baking chamber 21 are arranged in the baking chamber, one end of each guide rail part is connected with the inlet and the outlet, and a plurality of tobacco containers 4 can be placed on the guide rail parts side by side along the distribution direction of the guide rail parts; an air heating device 2601 is arranged in the heating chamber 26, and the air heating device 2601 is provided with an air inlet end and a hot air outlet end; the tobacco container 4 is in sliding fit with the guide rail part and is provided with a ventilation structure, so that an airflow channel with ventilation at the top end and the bottom end and closed peripheral side is formed in the tobacco container 4 through the ventilation structure; when a plurality of tobacco containers 4 containing tobacco are arranged side by side on the guide rail component for baking, the baking chamber 21 forms an air return channel 27 above the plurality of tobacco containers 4, the baking chamber 21 forms a hot air channel 28 below the tobacco containers 4, the air return channel 27 is communicated with the air inlet end of the air heating device 2601, and the hot air channel 28 is communicated with the hot air outlet end of the air heating device 2601.

A plurality of tobacco containers 4 can be arranged in the drying room 2, and the tobacco containers 4 are used for filling tobacco so that the tobacco can be baked in the drying room 2 by being filled into the tobacco containers 4; the baking chamber 21 is used for baking tobacco, and the heating chamber 26 is used for generating hot air flow which can enter the baking chamber 21 and bake the tobacco; the tobacco containers 4 can be placed on the rail members through the entrance and exit of the oven chamber 21 and can be slid into the plurality of tobacco containers 4 through the rail members so that the tobacco containers 4 can be placed side by side; the air heating device 2601 is used for heating air and outputting hot air flow into the baking chamber 21; the air heating device 2601 may be an air heater, a stove, or a heat pump; the tobacco container 4 can enable the hot air flow inside to pass through longitudinally through the ventilation structure arranged on the tobacco container, so that the hot air flow can contact with the hot air flow to be baked, the baking effect can be improved, and the problem of half-cooked tobacco is avoided; it should be noted that the tobacco container 4 can be used for tobacco transfer and transportation in addition to baking;

with the baking room with the structure, when a plurality of tobacco containers 4 containing tobacco are baked in the baking room 21 side by side, because each tobacco container 4 can form an air flow channel therein through the ventilation structure, and the air flow channel is communicated with the air return channel 27 and the hot air channel 28 above and below, air heated by the air heating device 2601 in the heating chamber 26 can enter the hot air channel 28 and enter the interior of each tobacco container 4 from the hot air channel 28, so that hot air can pass through tobacco leaves in the tobacco containers 4 and then enter the air return channel 27 to flow back to the heating chamber 26 as an air source of the air heating device 2601, thereby realizing circular baking, having better baking effect, and baking the tobacco in the tobacco containers 4 more uniformly; moreover, the manual work can be greatly reduced, the cost is reduced, and the method can be suitable for a tobacco processing production line to realize mechanical processing production.

Referring to fig. 5, in the embodiment of the present application, the tobacco container 4 includes a box-shaped frame 43, a first side net is disposed on a back side of the box-shaped frame 43, a second side net 42 is disposed on a top and a bottom of the box-shaped frame 43, side plates are disposed on left and right sides of the box-shaped frame 43, a door frame 44 is connected to a front side of the box-shaped frame 43, a door stop plate 45 is disposed on the door frame 44, and the first side net and the second side net 42 form the ventilation structure.

The side plates on the left side and the right side of the box-shaped frame 43 and the door baffles 45 can play a role in blocking air flow, and a longitudinal air flow channel can be conveniently formed by matching the first side net and the second side net 42; because the dorsal part at box frame 43 does not set up the backplate, so can be convenient for a plurality of tobacco container 4 when drying in the drying chamber side by side, the door baffle 45 of adjacent tobacco container 4 front side can seal the dorsal part of preceding tobacco container 4, and then the ventilative fore-and-aft airflow channel in both ends about constituting, when the hot gas flow is by lower supreme flow, can make the tobacco in the container can the thermally equivalent, can effectively avoid the tobacco to dry the problem inhomogeneous and that the clamp of appearing of, better receiving hot effect has.

To facilitate securing tobacco within the tobacco container 4, and as shown in connection with fig. 6, in one embodiment, the tobacco container 4 further includes at least one tobacco securing member, each tobacco securing member 46 having a plurality of insertion ends; the door baffle 45 is respectively provided with a plurality of rows of first jacks along the height direction of the door baffle, two the door frame respectively corresponds to each row of the first jacks is provided with a plurality of rows of second jacks, and each first jack and each second jack are matched with the insertion end of the tobacco fixing piece, so that a plurality of insertion ends of the tobacco fixing piece 46 are inserted into the tobacco container 4 to fix tobacco. The plurality of rows of first jacks are arranged on the door baffle 45, so that tobacco in the container can be conveniently fixed in a layered mode through a plurality of tobacco fixing pieces, the tobacco is more stable in the baking process, and the baking effect is improved; and through set up multirow second jack on the door frame, can make the tobacco mounting bear the weight of force with the door frame, such structure is more reasonable.

Please refer to fig. 2, fig. 3 and fig. 7, in the embodiment of the present application, the rail assembly includes two rails 25 respectively mounted on two sides of the baking chamber 21 by rail mounts, and the two rails 25 are located between the two rail mounts; each container is in sliding fit with the two sliding rails 25 through the moving wheels 41 arranged at the bottom; two slide rails 25 are provided in the baking chamber 21 through the slide rail mounting rack, the two slide rails 25 are opposite and parallel and are located at the inner sides of the two slide rail mounting racks, and the tobacco containers 4 can be slidably placed in the baking chamber 21 one by one through the sliding fit with the slide rails 25, and the side-by-side placement of the tobacco containers 4 can be realized.

To better define the hot air channel 28 during baking, as shown in fig. 2 and 7, in one embodiment, the first side sealing component 23 is detachably disposed at one end of the two slide rail mounting brackets adjacent to the inlet/outlet, so that the first side sealing component 23 and the side wall of the baking chamber 21 enclose the hot air channel 28; thus, the first side sealing member 23 can perform side sealing with good sealing effect on one end of the slide rail 25 close to the inlet and outlet during baking, and the sealing member and the side wall of the baking chamber 21 enclose the hot air channel 28 with better sealing effect; meanwhile, the first side sealing part 23 is detachable, so that the tobacco container 4 can be conveniently moved into and out of the baking chamber 21.

Specifically, the first side sealing component 23 includes a slide rail front baffle 2301, a mounting plate 2305, a lower sealing plate 2302, an upper sealing plate 2303 and an upper pressure plate 2304; a front sliding rail baffle plate 2301 is arranged between the two sliding rail mounting frames, mounting plates 2305 are respectively fixed at the tops of the two sliding rail mounting frames, a lower sealing plate 2302 with an L-shaped structure is detachably connected between the two mounting plates 2305, the mounting plates 2305 are limited between the two sliding rail mounting frames by the lower sealing plate 2302, an upper sealing plate 2303 is detachably connected to the lower sealing plate 2302, and an upper pressing plate 2304 is detachably connected to the upper sealing plate 2303; through the sealing structure, the front baffle 2301 of the slide rail can seal one side of the slide rail 25, which is adjacent to an inlet and an outlet, and can also be fixed by the lower closing plate 2302, and the upper closing plate 2303 and the upper pressing plate 2304 can also realize the sealing between the front baffle 2301 of the slide rail and the nearest tobacco container 4, so that a hot air channel 28 is formed better, the sealing effect is improved, and the disassembly of each part is facilitated; in another embodiment, the upper closing plate 2303 may be configured to move laterally, so that when there is a gap between the upper closing plate 2303 and the nearest tobacco container 4, the gap can be covered by moving the upper closing plate 2303.

To further effect the side sealing of the hot air channel 28, in one embodiment, the inside of each of the rail mounts is provided with a second side sealing member 24 along its length; the second side sealing member 24 includes a side sealing plate 2401, a rubber sealing strip 2403 and a sealing strip pressing plate 2402; the side sealing plate 2401 is fixed on the inner side of the slide rail mounting rack, and two ends of the side sealing plate 2401 are fixed between the mounting plate 2305 and the slide rail 25 mounting piece; a rubber seal 2403 is fixed to one side of the side sealing plate 2401 adjacent to the container by a seal pressing plate 2402. Thus, the side sealing plate 2401 can seal and shield the inner side of the slide rail mounting rack, and the rubber sealing strip 2403 on the side sealing plate can seal and shield the gap between the tobacco container 4 and the side sealing plate 2401, so that the side of the hot air channel 28 can be sealed.

Referring to fig. 3, in the embodiment of the present application, the drying chamber 2 is divided into the baking chamber 21 and the heating chamber 26 by a partition 2603; the top end of the partition 2603 is provided with a return air inlet 2604, the return air inlet 2604 is communicated with the return air channel 27, the bottom end of the partition 2603 is provided with a hot air outlet 2605, and the hot air outlet 2605 is communicated with the hot air channel 28. Due to the structural arrangement, the internal layout of the tobacco drying room 2 is more reasonable, and the circulation of air flow is more convenient.

In some embodiments, the top of the baking chamber 21 is at a greater height than the top of the tobacco container 4 on the rail member and the return air channel 27 is formed between the tobacco container 4 and the top of the baking chamber 21. By making the top of the baking chamber 21 higher than the top of the tobacco container 4, the construction of the return air path 27 is facilitated. Moreover, a moisture exhausting window 22 is arranged on one side of the baking chamber 21, which is far away from the heating chamber 26, and a ventilation opening 2602 is arranged on one side of the heating chamber 26, which is far away from the baking chamber 21. The moisture removal window 22 is provided to facilitate the removal of moisture from the return air duct 27, while the vent 2602 is provided to facilitate the introduction of sufficient air into the heating chamber 26.

To facilitate the circulation of the air in the heating chamber 26, a baffle plate may be disposed in the heating chamber 26, and a ventilation pipe may be disposed on the baffle plate, and the air heating device 2601 is disposed under the baffle plate, so that the suction airflow of the air heating device 2601 and the generated heating airflow are separated from each other to achieve a better heating effect.

Referring to fig. 8, in the embodiment of the present application, the tobacco loading line 1 includes a tobacco conveying mechanism 11 and a loading transfer mechanism 13 that are connected to each other, and a tobacco leaf smashing component is disposed on the tobacco conveying mechanism 11; the tobacco conveying mechanism 11 is used for conveying the picked tobacco leaves to the loading and transferring mechanism 13 and conveying the tobacco leaves to a tobacco-based box arranged on the loading and transferring mechanism 13 for loading; and the tobacco leaf smashing part arranged on the tobacco conveying mechanism 11 is used for smashing the conveyed tobacco leaves so as to loosen the tobacco leaves entering the tobacco container 4.

In one embodiment, as shown in fig. 9, the load transfer mechanism 13 comprises a first transfer frame 1301, a second transfer frame 1302 and a turning frame 1307 which are all matched with the tobacco container 4, the first transfer frame 1301 is connected with the tobacco conveying mechanism 11, and the first transfer frame 1301 and the second transfer frame 1302 are arranged side by side; a first guide wheel component 1303 is arranged at the top of the first transfer frame 1301, a second guide wheel component 1306 is arranged at the top of the second transfer frame 1302, and the guiding directions of the first guide wheel component 1303 and the second guide wheel component 1306 are consistent with the parallel direction of the transfer frames; the turning frame 1307 is in an L-shaped structure and is hinged to one side of the second transfer frame 1302, a pushing component 1308 is connected between the turning frame 1307 and the second transfer frame 1302, and the pushing component 1308 is used for pushing the turning frame 1307 to turn over and enabling the tobacco containers 4 guided to the turning frame 1307 to turn over to the side of the second transfer frame 1302 through the turning of the turning frame 1307.

In this way, the tobacco container 4 can be placed on the first transfer rack 1301 to receive the tobacco output by the tobacco conveying mechanism 11, so as to fill the tobacco, and after the tobacco container 4 is filled, the tobacco container 4 with the full tobacco can be moved to the second transfer rack 1302 through the guide wheel component and positioned on the transfer rack, and then the turning rack 1307 can be rotated around the hinge center thereof by the pushing of the pushing component 1308, so that the tobacco container 4 on the turning rack 1307 can be subjected to posture conversion through the rotation of the turning rack 1307, that is, the lying posture of the received material is converted into the standing posture for subsequent transportation, and therefore, the mechanized posture conversion can be realized, and the tobacco container can be transported to the drying room 2 for drying through a transportation device such as a forklift in a vertical mode.

Specifically, the turning frame 1307 comprises a first turning support and a second turning support which are fixed and perpendicular to each other, the first turning support and the second turning support are fixedly connected, and the joint of the first turning support and the second turning support is hinged to the second transfer frame 1302 through a hinge shaft; the overturning frame 1307 is provided with a station to be overturned and an overturned station; when the turning frame 1307 is at a station to be turned, the first turning support is perpendicular to the second transfer frame 1302, and the second turning support is parallel to the second transfer frame 1302; when the turning frame 1307 is at the post-turning station, the first turning frame is parallel to the second transfer frame 1302, and the second turning frame is perpendicular to the second transfer frame 1302. The first overturning bracket and the second overturning bracket form an L-shaped overturning frame 1307, the overturning frame 1307 is provided with two stations which are a station to be overturned and a station after overturning respectively, and the two stations are switched by a pushing component 1308 for pushing the overturning frame 1307;

in order to enable the tobacco container 4 to be better moved onto the turning frame 1307, the height of the second turning frame 1307 is lower than or equal to the height of the second guide wheel member 1306 when the turning frame is at the station to be turned. With such a height setting, the tobacco container 4 can be moved to the turning shelf 1307 more favorably when being transferred from the first transfer shelf 1301 to the second transfer shelf 1302, and the state of the tobacco container 4 can be switched easily.

Referring to fig. 10 and 11, in the embodiment of the present application, the tobacco conveying mechanism 11 has a first belt conveying channel 1101, and the tobacco leaf smashing unit is disposed in the first belt conveying channel 1101; the tobacco leaf smashing component comprises a rotating shaft 1102 which is rotatably connected in the first belt conveying channel 1101, and a plurality of V-shaped rods 1103 which are uniformly distributed are fixed on the rotating shaft 1102; the first belt conveying channel 1101 is provided with height adjusting openings 1106 corresponding to two sides of the rotating shaft 1102 respectively, the height adjusting openings 1106 are connected with mounting boxes 1105 in a sliding manner, two ends of the rotating shaft 1102 penetrate through the height adjusting openings 1106 and extend into the mounting boxes 1105 on the corresponding side, and a driving motor in transmission connection with the rotating shaft 1102 is arranged in one of the mounting boxes 1105; every the bottom of install bin 1105 rotates and is connected with fore-and-aft adjusting screw 1108, and limiting plate 1107 has been cup jointed to adjusting screw 1108's outside screw thread, and limiting plate 1107 is fixed outside tobacco conveying mechanism 11, and adjusting screw 1108's bottom mounting has hand wheel 1104.

By adopting the technical scheme, the driving motor can drive the rotating shaft 1102 to rotate, and the V-shaped rod 1103 on the transferring shaft can rotate the rotating shaft 1102 to smash the tobacco in the first belt conveying channel 1101; moreover, the height of the rotating shaft 1102 is adjustable to facilitate the smashing of tobacco of different conveying thicknesses in the first belt conveying channel 1101; specifically, accessible hand wheel 1104 makes adjusting screw 1108 rotate, and adjusting screw 1108 can be through with fixed limiting plate 1107 screw-thread fit, can be so that when adjusting screw 1108 rotates, install bin 1105 can reciprocate, and then makes axis of rotation 1102 also can reciprocate to this realization is to the tobacco height control of smashing the part that looses, has further improved the practicality.

In order to better facilitate the transfer of the tobacco container 4 on the two transfer carriages, as shown in fig. 9, a transition plate 1304 is connected between the first transfer carriage 1301 and the second transfer carriage 1302, and a third guide wheel assembly 1305 is arranged on the transition plate 1304.

Further, a transition conveying mechanism 12 is connected between the tobacco conveying mechanism 11 and the loading and transferring mechanism 13; the transition conveying mechanism 12 comprises a support frame, a second belt conveying channel arranged on the support frame and a material guide plate hinged at the outlet end of the second belt conveying channel; the feeding end of the second belt conveying channel is lower than the outlet end of the first belt conveying channel 1101, and the discharging end of the second belt conveying channel is higher than the first transfer rack 1301.

The transition conveying mechanism 12 is arranged between the tobacco conveying mechanism 11 and the loading and transferring mechanism 133 and is connected with each other in a way that the feeding end of the second belt conveying channel is lower than the outlet end of the first belt conveying channel 1101, and the discharging end of the second belt conveying channel is higher than the first transfer rack 1301; in this way, the tobacco in the tobacco conveying mechanism 11 can drop into the second belt conveying channel of the transition conveying mechanism 12 after being scattered, so that the tobacco can be further loosely loaded in the tobacco container 4; the arrangement of the material guiding plate can enable the tobacco to drop into the tobacco container 4 placed on the first transfer rack 1301 more accurately.

Referring to fig. 12-15 in the present embodiment, the screening and packaging line 3 includes a guide rail frame 32, a first stage lifting conveyor 34, a second stage lifting conveyor 37, a screening device, a third stage lifting conveyor 310, and a baling device 39; the assembly line is mainly used for unloading, conveying, screening and packing the dried tobacco and is respectively realized by a guide rail frame 32, a tobacco container 4, a first-stage lifting conveyor 34, a second-stage lifting conveyor 37, a screening device, a third-stage lifting conveyor 310 and a packing device 39; the assembly line can be matched with the existing assembly lines of other procedures so as to conveniently realize the whole-course mechanization of tobacco processing.

A plurality of tobacco containers 4 are arranged and are matched on the guide rail frame 32 in a sliding manner, the bottom of each tobacco container 4 can be opened, and one end of the guide rail frame 32 is provided with a discharging station 33; the first-stage lifting conveyor 34 is provided with a receiving end and a lifting end, the receiving end is positioned below the discharging station 33 of the guide rail frame 32, the lifting end is connected with one end of the second-stage lifting conveyor 37, the other end of the second-stage lifting conveyor 37 is connected with a feeding hole of the screening device, a discharging hole of the screening device is connected with one end of the third-stage lifting conveyor 310, and the other end of the third-stage lifting conveyor 310 is connected with a tobacco inlet of the packing device 39; the tobacco container 4 can be filled with tobacco and placed in a baking room for baking, the tobacco can be transferred to the guide rail frame 32 after being baked, the tobacco is discharged at a discharging station 33 on the guide rail frame 32, the discharged tobacco can enter a material receiving end of a first-level lifting conveyor 34, then is conveyed to a second-level lifting conveyor 37 through the first-level lifting conveyor 34, and is conveyed to a screening device through the second-level lifting conveyor 37 for screening, the screened tobacco is conveyed into a packing device 39 through a third-level conveying mechanism for packing, mechanization is basically realized in the whole process, the labor input can be greatly reduced, the cost is reduced, and the work efficiency is improved;

in some embodiments, because the receiving end of the primary lifting conveyor 34 and the rail frame 32 need a large height difference, the rail frame 32 needs to be set high enough or a discharge pit 36 is formed on the installation floor 31, and the primary lifting conveyor 34 is placed in the discharge pit 36.

Referring to fig. 13-15, in the embodiment of the present application, the packing device 39 includes a box body 3901 having a compression cavity 3902 therein, the upper end and the lower end of the box body 3901 are respectively provided with the tobacco inlet and the packing outlet 3907, and both the tobacco inlet and the packing outlet 3907 are communicated with the compression cavity 3902; the box body 3901 is provided with a compression part and a bag pushing part; the compression member has a compression end that is a sliding fit within the compression cavity 3902 to compress tobacco entering the compression cavity 3902 through the compression end of the compression member; the bale-pushing component has a pushing end located within the lower end of the compression chamber 3902 to push the compressed formed pieces of tobacco out of the bale outlet 3907 by the pushing end of the pushing component 1308; the tobacco inlet of the box body 3901 is provided with the upper end of the back side of the box body 3901, tobacco to be compressed can conveniently enter the compression cavity 3902, and the packing outlet 3907 is arranged at the lower end of the box body 3901 and can be conveniently pushed out together with the packed massive tobacco; after the tobacco got into compression chamber 3902, accessible compression part made the indent can obtain compression moulding to through pushing away a packet part and release box 3901 after the packing, with this problem that can realize not needing artifical or lifting device to take out has improved packing efficiency.

The baling outlet 3907 is provided with an openable first bin door 3910; a plurality of parallel line placing grooves 3908 are formed in the bottom of the compression cavity 3902, a plurality of threading grooves 3909 are formed in the side wall of the compression cavity 3902 in the extending direction of the line placing grooves 3908, each threading groove 3909 penetrates through the side wall of the box body 3901 and is respectively communicated with the corresponding threading grooves 3909, and a packing rope is arranged through the threading grooves 3909 and the line placing grooves 3908; the first door 3910 can be opened or closed, and can act as a shutter when the first door 3910 closes the packing outlet 3907; the wire placing groove 3908 formed in the bottom of the compression cavity 3902 is used for placing a packing rope so that formed tobacco can be conveniently bound after compression, and the wire threading groove 3909 is used for arranging two ends of the packing rope so that the formed tobacco can be pressed into the tobacco together during compression and the packing rope can be conveniently arranged, so that the tobacco can be bound and packed after compression;

the packing outlet 3907 penetrates through the front side of the box body 3901, and a second box door 3911 located above the first box door 3910 is further arranged in the packing outlet 3907. By providing second door 3911, compression chamber 3902 may be fully opened by opening second door 3911, which may facilitate cleaning or maintenance.

The wire arrangement groove 3908 extends towards the back side of the box body 3901 and is communicated with the wire threading groove 3909 formed in the back side of the box body 3901. Through arrangement structure's threading groove 3909 like this and put wire casing 3908, when arranging the baling rope, the baling rope can be vertically placed in compression chamber 3902 bottom place plane, and the cooperation corresponds the packing export 3907 of side, is more convenient for carry out the tying up of baling rope.

The compression component includes a first linear drive 3904 and a compression plate 3905; the first linear driving part 3904 is arranged at the top of the box body 3901, the driving end of the first linear driving part penetrates into the compression cavity 3902 and is connected with the compression plate 3905, and the compression plate 3905 is in sliding fit in the compression cavity 3902; the bottom of the compression plate 3905 is connected with a plurality of pressing plates 3913 through a plurality of supporting plates 3912 parallel to the wire placing groove 3908, and a gap through which a baling rope can pass is formed between every two adjacent pressing plates 3913. Every clamp plate 3913 is installed in the bottom of compression board 3905 through a extension board 3912, constitutes the clearance that can supply the packing rope to pass between every clamp plate 3913, and the interval between extension board 3912 also can be convenient for the passing of packing rope to the interval between extension board 3912 is greater than the clearance of clamp plate 3913 support, and the one end that is located dorsal side with the packing rope draws the front side and ties up like this more conveniently, can make the packing more convenient like this.

The bale pushing component comprises a second linear drive 3914 and a push plate 3906; the second linear driving member 3914 is disposed on the back side of the box body 3901, and its driving end is introduced into the compression cavity 3902 and connected to the push plate 3906. After the wrapping is complete, the push plate 3906 can be driven by the first linear drive to enable the tobacco to be ejected.

It should be noted that the second linear driving element 3914 may be an air cylinder, a hydraulic cylinder, or an electric push rod, or a structure that realizes the longitudinal movement of the compression plate 3905 through an existing transmission mechanism, which is not limited.

In the embodiment of the present application, the receiving end of the primary lifting conveyor 34 is provided with a receiving hopper 35. The receiving hopper 35 facilitates the introduction of the tobacco discharged from the discharge station 33 into the receiving hopper 35, thereby enabling the entire discharged tobacco to be transferred to the primary lifting conveyor 34.

Referring to fig. 16, there is further provided a method for processing tobacco according to any of the above embodiments or implementations, including the steps of:

step S1, the picked tobacco leaves are placed into a tobacco conveying mechanism 11 of the tobacco loading assembly line 1 and are conveyed to a transition conveying mechanism 12 through a conveying belt in the tobacco conveying mechanism 11, and meanwhile, the conveyed tobacco leaves are smashed by a smashing component on the tobacco conveying mechanism 11;

s2, the tobacco leaves dropped on the transition conveying mechanism 12 after being scattered are conveyed, and the conveyed tobacco leaves are dropped into the tobacco container 4 which is laid flat and opened below, so as to fill the tobacco container 4 with tobacco;

step S3, after the container is filled to the set loading weight, the tobacco in the container is fixed through tobacco fixing pieces, then the container is pushed to the second transfer rack 1302 from the first transfer rack 1301, the pushing component 1308 is started, the tobacco container 4 is overturned through the overturning rack 1307 through the pushing component 1308, the posture of the overturned tobacco container 4 is converted into a standing posture, and then the container is transferred through a forklift;

step S4, the tobacco containers 4 are placed on the slide rails 25 of the drying room 2, and the tobacco containers 4 are arranged side by side and are close to each other;

step S5, drying for 1-3 days at an initial heating rate of not more than 1 ℃/h for 6-10 hours with slow fire to prevent the tobacco leaves from being green-baked too quickly, heating the dry-bulb temperature to 38 ℃, stabilizing the dry-bulb temperature to 36-40 ℃ with medium and high fire, stabilizing the wet-bulb temperature to 35-37 ℃ and continuing until all leaves become golden yellow; meanwhile, moisture is discharged through the moisture discharge window 22, preventing the tobacco leaves from being blackened;

step S6, second stage drying, drying for 1-2 days at a temperature rise speed of not more than 1 ℃/h, slowly raising the temperature for 10-12 hours to prevent the tobacco ribs from being roasted green too fast, raising the temperature of the dry balls to 48 ℃, stabilizing the temperature of the dry balls within the range of 46-50 ℃ with strong fire, stabilizing the temperature of the wet balls within the range of 37-39 ℃, and increasing the temperature difference between the dry balls and the wet balls until all the tobacco ribs have no cyan; meanwhile, moisture is discharged in a large amount through the moisture discharge window 22, and the smoke sheet is prevented from being blackened;

step S7, drying for 1-2 days in the third stage, wherein the temperature rise speed is not more than 1 ℃/h, the temperature rise is 8-10 hours, the tobacco stems are prevented from being roasted green when the temperature rise is too fast, the temperature of the dry pellets is raised to 54 ℃ and stabilized within the range of 52-54 ℃, the temperature of the wet pellets is stabilized within the range of 40-42 ℃, and the larger temperature difference between the dry pellets and the wet pellets is kept until all the leaves are changed into orange; at the same time, moisture is discharged through the moisture discharge window 22;

step S10, the tobacco container 4 out of the kang is transferred to a guide rail frame 32 of the screening and packaging production line 3 through a forklift, then the tobacco container 4 on the tobacco container is moved to a discharging station 33 of the guide rail frame 32, a bottom cover frame at the bottom of the tobacco container 4 is opened on the discharging station 33 through a limiting part, and the tobacco in the tobacco container falls into a receiving hopper 35 of a first-level lifting conveyor 34;

step S11, after the tobacco enters the receiving hopper 35, the tobacco is lifted to a higher lifting end along with a conveying belt of the first-level lifting conveyor 34, and the tobacco is uniformly scattered to the second-level lifting conveyor 37 connected below the higher lifting end, the tobacco can be conveyed to the drum screening machine 38 through the second-level lifting conveyor 37, crushed leaves in the tobacco can be separated through screening of the drum screening machine 38, so that the tobacco meeting the specified size can be discharged through a discharge hole of the drum screening machine 38 and then discharged into the sorting conveyor 311, the unqualified tobacco is manually sorted during conveying, conveyed to the third-level lifting conveyor 310 after sorting, and conveyed to a tobacco inlet of the packing device 39 through the third-level lifting conveyor 310;

step S12, placing a plurality of packing ropes in a plurality of wire placing grooves 3908 of the packing device 39, enabling one ends of the packing ropes close to the inner parts to penetrate through the outside of the wire passing groove 3909, placing leatheroid for packing tobacco at the bottom of the compression cavity 3902, enabling the tobacco to enter the compression cavity 3902 from a feed hopper 3903 of the packing device 39, and controlling the compression part to compress the tobacco when the tobacco in the compression cavity 3902 is basically full or reaches a preset height through a controller; and after the compression is finished, the compression state is maintained, an operator enables one end, located on the back side, of the packing ropes to penetrate through the wire passing grooves or the wire passing intervals, the end is enabled to reach the front side and to be bound with the other end, after the packing ropes are all bound, the paper sheets and the formed tobacco are packed and bound together, after the packing is finished, the compression part is retracted through the controller and plays a role of pushing the packing part to enable the tobacco after the packing to be pushed out, and the packing of the tobacco is finished.

In a specific embodiment, in the whole drying process, besides a group of dry and wet ball sensors are respectively arranged at the front and the back according to the normal drying requirement, a plurality of temperature monitoring points are respectively arranged at the front section, the middle section and the back section of the baking chamber 21, so as to observe the uniform distribution condition of the drying temperature of the method, and the temperature difference of each point is 2-3 ℃, so that the drying temperature is relatively uniform.

Moreover, the tobacco drying system can keep the temperature difference between the air return channel 27 and the hot air channel 28 below 20 ℃ and the temperature difference between the tobacco layers of the tobacco container 4 below 5 ℃, so that the yellowing and the green and the black of the tobacco leaves are easier to master, the leaf structure becomes loose, the color and the luster of the redried tobacco leaves are deep and orange, and the appearance quality is obviously improved.

In a specific embodiment, the air heating device 2601 employs a high-power circulating fan, and since the tobacco leaves are stacked in bulk in the tobacco box in disorder, the wind resistance between the tobacco leaves is greater than that of "hanging rod drying" during baking, and the wind speed is less than that of "hanging rod drying", so that the requirement of the invention on the power, wind volume and wind pressure of the No. 7 circulating fan of the ordinary bulk curing barn required by the file "national tobacco institute complex [2009] 418" is not satisfied, so that the high-power circulating fan is used to ensure sufficient wind pressure and component to keep constant-temperature drying and heat supply in the cured tobacco layer, satisfy the normal flow of hot air in the tobacco layer, and ensure the homogenization of the re-cured tobacco leaves.

Meanwhile, the embodiment of the application realizes the isolation of the return air channel 27 and the hot air channel 28, and reduces the leakage through sealing to form an obvious hot air low-temperature area and a hot air high-temperature area, thereby avoiding the existence of a dry-wet area of the traditional 'hanging rod drying' and playing a key role in ensuring the homogenization of the flue-cured tobacco, and because the independent return air channel 27 and the sealed hot air channel 28 are adopted, the comprehensive thermal efficiency of the hot air is obviously improved, the heat loss is obviously reduced, thereby lightening the working load of the air heating device 2601 and saving the energy.

Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tobacco processing system, characterized by: comprises a tobacco loading assembly line, a drying device and a screening and packaging assembly line which are arranged in sequence;

2. A tobacco processing system according to claim 1, wherein: the tobacco container comprises a box-type frame, a first side net is arranged on the back side of the box-type frame, a second side net is arranged at the top and the bottom of the box-type frame respectively, side plates are arranged on the left side and the right side of the box-type frame respectively, a box door frame is connected to the front side of the box-type frame, a door baffle plate matched with the box door frame is arranged on the box door frame, and the first side net and the second side net form the ventilation structure.

3. A tobacco processing system according to claim 2, wherein: the tobacco container further includes at least one tobacco securing member, each tobacco securing member having a plurality of insertion ends;

4. A tobacco processing system according to claim 1, wherein: the guide rail component comprises two slide rails which are respectively arranged on two sides of the baking chamber through slide rail mounting racks, and the two slide rails are positioned between the two slide rail mounting racks; each container is in sliding fit with the two sliding rails through a moving wheel arranged at the bottom;

5. A tobacco processing system according to claim 1, wherein: the drying room is divided into the baking chamber and the heating chamber by a partition board; the top end of the partition board is provided with a return air inlet, the return air inlet is communicated with the return air channel, the bottom end of the partition board is provided with a hot air outlet, and the hot air outlet is communicated with the hot air channel.

6. A tobacco processing system according to any one of claims 1 to 5, wherein: the tobacco loading assembly line comprises a tobacco conveying mechanism and a loading and transferring mechanism which are mutually connected, and a tobacco leaf smashing component is arranged on the tobacco conveying mechanism;

7. A tobacco processing system according to claim 6, wherein: the overturning frame comprises a first overturning support and a second overturning support which are fixed and vertical to each other, the first overturning support and the second overturning support are fixedly connected, and the joint of the first overturning support and the second overturning support is hinged with the second transfer frame through a hinge shaft;

8. A tobacco processing system according to claim 7, wherein: the tobacco conveying mechanism is provided with a first belt conveying channel, and the tobacco leaf smashing component is arranged in the first belt conveying channel; the tobacco leaf smashing component comprises a rotating shaft which is rotatably connected in the first belt conveying channel, and a plurality of V-shaped rods which are uniformly distributed are fixed on the rotating shaft;

9. A tobacco processing system according to claim 1, wherein: the screening and packaging assembly line comprises a guide rail frame, a first-stage lifting conveyor, a second-stage lifting conveyor, a screening device, a third-stage lifting conveyor and a packaging device;

10. A method of tobacco processing, based on a tobacco processing system according to any one of claims 1 to 9, characterized in that: the method comprises the following steps: