CN101683179A - Method for loosening and humidifying tobaccos and device thereof - Google Patents

Abstract

A method and device for loosening and re-moisturizing tobacco leaves. Tobacco leaves (11) are fed into a steam outer cover (5) from a feed pipe (1), and are separated by hot air (8), and larger pieces of cigarettes sink to the return air The lower part of the pipeline (2) and the corner of the lower part of the return air pipeline (2) are equipped with a feed roller (7). The feed roller rotates when there is material to loosen the large tobacco leaves into smaller cigarettes. Most of the tobacco leaves in the incoming material and the smaller pieces of tobacco that are loosened by the material roller in the lower part of the return air pipeline (2) rise along the nozzle pipe (3) under the wind force of the hot air (8); the steam nozzle (4) will The high-temperature water vapor is atomized and sprayed on the tumbling tobacco leaves. Under the action of gravity, it settles on the discharge vibrating trough (6) in the outer ring area of the nozzle pipe (3), and the tobacco leaves are then transferred from the discharge vibrating trough to the subsequent process. The invention has the advantages of good effect on loosening and regaining moisture of tobacco leaves, improving uniformity of humidification, reducing crushing of tobacco leaves, lowering the waste content of tobacco leaves, better guaranteeing product quality, and the like.

Description

A kind of method of loosening and gaining moisture tobacco leaf and device thereof

Technical field

The present invention relates to tobacco leaf method for processing and equipment, particularly relate to a kind of method and device thereof that is used for loosening and gaining moisture of tobacco on the tobacco leaf throwing line.

Background technology

In the production of cigarettes process, at first to carry out loosening and gaining moisture and handle the smoked sheet after cutting, its operation task mainly is to make smoked sheet loose and increase certain moisture content and temperature, to satisfy subsequent production processing.For finishing the task of this operation, the rolling of needs dependence cylinder and the mechanism of the interior harrow nail of cylinder are carried out loose to the sheet cigarette that compresses, be sprayed at steam ejection water simultaneously and realize increasing certain temperature and moisture on the sheet cigarette in actual production process.The control (tobacco strip structure) of loose effect in the process and product physical quality is to finish by the method for control return air temperature.Along with the continuous development of cigarette technology, 2003 editions " cigarette process standard " replenishes the operation task that has proposed " improving sheet cigarette aesthetic quality " to sheet cigarette loosening and gaining moisture, and the franchise of loosening and gaining moisture rear panel cigarette temperature and moisture content has been proposed requirement.

In the present sheet cigarette moisture regain, though the effect of harrow nail has been played effect to smoked sheet loose, no matter but the size of cigarette piece (or tobacco leaf), all will be through the stressed effect of harrow nail, it is littler to cause that making of most of tobacco leaf is broken, the small pieces tobacco leaf becomes, and makes tobacco leaf contain last rate and increases, cause the long filament rate in the finished cut tobacco to reduce, short silk, filament broken rate increase, and have influenced the tobacco structure in the cigarette, finally cause the cigarette aesthetic quality to descend to some extent.

Summary of the invention

The objective of the invention is in order to remedy the deficiencies in the prior art, provide a kind of loosening and gaining moisture effect better, improve the humidification uniformity, reduce tobacco leaf and make broken and reduce method and the device thereof that tobacco leaf contains the loosening and gaining moisture tobacco leaf of last rate.

To achieve these goals, the method and apparatus of loosening and gaining moisture tobacco leaf involved in the present invention, its technical scheme is achieved in that

Tobacco leaf enters in the steam outer cover from feed pipe, selection by winnowing by the hot blast that makes progress at a high speed, bigger cigarette piece is because gravity is heavier, sink to return air pipeline bottom, return air pipeline lower corners is equipped with motor-operated material toggling roller, the material toggling roller rotates having under the situation of material, with the bulk tobacco leaf loose be less cigarette piece, in the supplied materials risen at the wind-force effect lower edge of hot blast jet pipe by the loose less cigarette piece of material toggling roller in most of tobacco leaf and return air pipeline bottom, and form fountain shape, tobacco leaf is in the process that rises, fully contact with hot blast, temperature constantly raises, simultaneously, because it is big that jet size constantly becomes, the speed of tobacco leaf is descended, and is " boiling " state in the Top Leaves of jet pipe, constantly rolls to both sides, after the water vapour atomizing of steam spray nozzle with high temperature of steam outer cover inner top, be sprayed on the tobacco leaf that constantly rolls, deadweight increases behind the tobacco leaf humidification, under the gravity effect, be settled down to discharging on the jet pipe outer ring zone and shake on the groove, tobacco leaf is sent to subsequent handling from the discharging groove that shakes again.

Device of the present invention is made of shake groove, hot blast, cyclone separator, recovery gas and tobacco leaf of feed pipe, return air pipeline, jet pipe, steam spray nozzle, steam outer cover, discharging.It is characterized in that, tobacco leaf is sent in the steam outer cover from feed pipe, selection by winnowing by the hot blast that makes progress at a high speed, bigger cigarette piece is because gravity is heavier, sink to return air pipeline bottom, feed pipe is arranged on middle part and the two orthogonal communicating of return air pipeline, and the upper end of return air pipeline is connected with the lower end of jet pipe, jet pipe is the horn-like taper shape of " following narrow wide ", and lower corners is provided with motor-operated material toggling roller in the return air pipeline; The steam outer cover is the cylindrical and symmetrical both sides that are installed in jet pipe of bottom surface opening, the upper end of the distance from top jet pipe of steam outer cover is 20 to 100cm, steam outer cover lateral surface is equipped with cyclone separator, the effect of cyclone separator is that foreign material such as containing offal are separated, and cleaner hot blast is reclaimed pneumatic transmission to return air pipeline and recycles; Steam spray nozzle has 5 to 10 to be arranged on steam outer cover inside top equably, and is arranged in plane or sphere or crosswise; The discharging groove that shakes is arranged on steam outer cover lower end, opened a rectangle U-shaped hole at a shake end of groove of discharging, U-shaped hole pitch-row should be not less than the pipeline diameter of return air pipeline, the both sides in U-shaped hole are provided with A district and B district respectively, the width in A, B two districts equates that its width X is: (steam outer cover radius-jet pipe upper end radius)＜X＜(steam outer cover radius-jet pipe lower end radius); If steam outer cover radius is 80cm, jet pipe upper end radius is that 40cm, jet pipe lower end radius are 20cm, and then the return air pipeline is 20cm, and the width in A, B two districts respectively is 50cm, and the shake pitch-row in rectangle U-shaped hole of groove of discharging is 42cm.

The device of loosening and gaining moisture tobacco leaf of the present invention is characterized in that, the steam outer cover is 60cm apart from the jet pipe upper end.

The device that gets the loosening and gaining moisture tobacco leaf of the present invention is characterized in that the quantity of steam jet is 8 and is arranged in the plane equably.

The method of loosening and gaining moisture tobacco leaf of the present invention and device thereof have novelly, reasonable in design, and technological specification is made easyly, and non-environmental-pollution is easy to form characteristics such as industrialized mass production; Have the loosening and gaining moisture of tobacco effect better, improve the humidification uniformity, reduce tobacco leaf and make brokenly, reduce the last rate that contains of tobacco leaf, guarantee advantages such as product quality better.The present invention can be widely used in tobacco productive corporation.

Description of drawings

Fig. 1: the structural representation of loosening and gaining moisture tobacco leaf device;

Fig. 2: the discharging of the loosening and gaining moisture tobacco leaf device groove schematic diagram that shakes

Among the figure, the 1st, feed pipe, the 2nd, the return air pipeline, the 3rd, jet pipe, the 4th, steam spray nozzle, the 5th, the steam outer cover, the 6th, export the groove that shakes, the 7th, the material toggling roller, the 8th, hot blast, the 9th, cyclone separator, the 10th, reclaim gas, the 11st, tobacco leaf.

The specific embodiment

The method of loosening and gaining moisture tobacco leaf of the present invention and device thereof, its technical scheme is described in detail as follows in conjunction with Fig. 1 and Fig. 2:

Embodiment 1: the tobacco leaf 11 of uniform and stable flow enters in the steam outer cover 5 by feed pipe 1, selection by winnowing by the hot blast 8 that makes progress at a high speed, bigger cigarette piece is because gravity is heavier, sink to the bottom of return air pipeline 2, and material toggling roller 7 is equipped with in the bottom of return air pipeline 2, the material toggling roller 7 that is provided with motor rotates having under the situation of material, with the bulk tobacco leaf loose be less cigarette piece.In the supplied materials risen at the wind-force effect lower edge of hot blast 8 jet pipe 3 by material toggling roller 7 loose less cigarette pieces in most of tobacco leaf 11 and return air pipeline 2 bottoms, and form fountain shape, and tobacco leaf 11 fully contacts with hot blast 8 in the process that rises, and temperature constantly raises; Simultaneously, because it is big that jet pipe 3 diameters constantly become, tobacco leaf 11 speed are descended, Top Leaves at jet pipe 3 is " boiling " state and constantly rolls to both sides, be sprayed on the tobacco leaf 11 that constantly rolls after the water vapour atomizing of steam spray nozzle 4 in steam outer cover 5 with high temperature, deadweight increases behind tobacco leaf 11 humidifications, under the gravity effect, be settled down to discharging on the outer ring zone of jet pipe 3 shake A, B two districts of groove 6, tobacco leaf 11 is sent to subsequent handling by discharging groove 6 vibrations of shaking.

Embodiment 2: device of the present invention comprises: feed pipe 1, return air pipeline 2, jet pipe 3, steam jet 4, steam outer cover 5, discharging shake groove 6, hot blast 8, cyclone separator 9 and reclaim gas 10.Feed pipe 1 is arranged on the middle part of return air pipeline 2 and both are orthogonal communicates.The upper end of return air pipeline 2 is connected with the lower end of jet pipe 3, and jet pipe 3 is the horn-like taper shape of " following narrow wide ".Lower corners is provided with motor-operated material toggling roller 7 in the return air pipeline 2.Steam outer cover 5 is the cylindrical of bottom surface opening and is installed in the both sides of jet pipe 3 symmetrically, and steam outer cover 5 tops are 60cm apart from jet pipe 3 upper ends.The lateral surface of steam outer cover 5 is equipped with cyclone separator 9, reclaims the output output of gas 10 from cyclone separator 9.The discharging groove 6 that shakes is arranged on the lower end of steam outer cover 5, has a rectangle U-shaped hole at a shake end of groove 6 of discharging, and pitch-row is 42cm, and the both sides in U-shaped hole are provided with A district and B district respectively, and the width in A, B two districts equates that width is 50cm.The radius of steam outer cover 5 is 80cm, and the upper end radius of jet pipe 3 is 40cm, and the radius of the lower end of jet pipe 3 and return air pipeline is 20cm.The quantity of steam spray nozzle 4 is 8 and is distributed in the inboard of steam outer cover 5 equably, and arranges established practice plane then.

The water vapour of steam spray nozzle 4 can be driven by compressed air, also can be driven by steam, and connect the external steam pipeline.

Claims (5)

1. A method for loosening tobacco leaves, characterized in that: the tobacco leaves (11) are fed into the steam outer cover (5) from the feed pipe (1), and the larger tobacco leaves The block sinks to the lower part of the return air pipeline (2), and the corner of the lower part of the return air pipeline (2) is equipped with a feeding roller (7), and the feeding roller (7) driven by a motor is installed Rotate, bulk tobacco leaf (11) is loosened into lesser cigarette block, most of tobacco leaf (11) and the lower portion of return air pipeline (2) are loosened by shifting roller (7) lesser block in incoming material Under the action of the wind force of the hot air (8), it rises along the nozzle (3) and forms a fountain shape. During the process of rising, the tobacco leaves (11) fully contact with the hot air (8), and the temperature continues to rise; the nozzle (3) The top tobacco leaf (11) is in a "boiling" state and continuously rolls to both sides, and the water steam nozzle (4) arranged at the top of the steam cover (5) atomizes the high-temperature water vapor and sprays it on the continuously rolling tobacco leaf (11). After the tobacco leaf (11) is humidified, its own weight increases, and it settles on the discharge vibration groove (6) in the outer ring area of the nozzle (3), and the tobacco leaf (11) is then transferred from the discharge vibration groove (6) to the subsequent process. 2. A device for implementing the method for loosening and re-moisturizing tobacco leaves according to claim 1, which consists of a feed pipe (1), a return air pipeline (2), a spray pipe (3), a steam nozzle (4), and a steam cover (5), consisting of discharge vibration tank (6), hot air (8), cyclone separator (9), recycled gas (10) and tobacco leaves (11), is characterized in that: feed pipe (1) is arranged in the return air The middle part of the pipeline (2) and the two are perpendicular to each other, the upper end of the return air pipeline (2) is connected with the lower end of the nozzle (3), and the nozzle (3) is in the shape of a trumpet-shaped cone with a narrow bottom and a wide top. The lower corner of the air pipeline (2) is provided with a motor-driven material shifting roller (7); the steam outer cover (5) is cylindrical and symmetrically installed on both sides of the nozzle pipe (3), and the steam outer cover (5) ) is 20 to 100cm from the upper end of the spray pipe (3), and a cyclone separator (9) is installed on the outer side of the steam cover (5); 5 to 10 steam nozzles (4) are evenly arranged on the steam cover ( 5) Both sides of the top are arranged in a flat or spherical or cross shape; the discharge vibration groove (6) is arranged at the lower end of the steam cover (5), and a rectangular U-shaped hole is opened at one end of the discharge vibration groove (6) , the distance between the U-shaped holes is not less than the diameter of the return air pipeline (2), the two sides of the U-shaped hole are divided into two areas, A and B, and the two areas of A and B are of equal width, and the width X is greater than the radius of the steam cover (5) Subtract the difference of the upper end radius of the nozzle pipe (3), and X is less than the difference of the radius of the steam outer cover (5) minus the lower end radius of the nozzle pipe (3). 3. The device for loosening and re-moisturizing tobacco leaves according to claim 2, characterized in that the top of the steam cover (5) is 60 cm away from the upper end of the nozzle pipe (3). 4. The device for loosening and remoisturizing tobacco leaves according to claim 2 or 3, characterized in that the number of steam nozzles (4) is 8 and they are evenly arranged in a plane. 5. The device for loosening and remoisturizing tobacco leaves according to claim 2, characterized in that the widths of the A and B areas of the discharge vibrating trough (6) are both 50 cm, and the distance between the rectangular U-shaped holes is 42 cm.

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