DE102017120169A1 - Drum of the tobacco processing industry for treating tobacco - Google Patents

Abstract

The invention relates, inter alia. a drum (10) of the tobacco-processing industry for treating, in particular conditioning, tobacco, in particular cut tobacco, with a drum body rotatable about a rotation axis (14), the drum body having a feed side for introducing tobacco into the drum body interior and an application side (12) for the discharge of tobacco from the drum body interior having a discharge point for the tobacco. The drum (10) is further developed in that the discharge side (12) of the drum body is formed such that upon rotation of the drum body, the discharge point of the tobacco from the drum inside with respect the axis of rotation (14) of the drum body is varied or variable.

Description

The invention relates to a drum of the tobacco processing industry for treating, in particular conditioning, tobacco, in particular cut tobacco, with a rotatable drum body rotatable about a rotation axis, the drum body having a feed side for introducing tobacco into the drum body interior and a discharge side for discharging tobacco the drum body interior having a discharge point for the tobacco and a use of the drum of the tobacco processing industry. Furthermore, the invention relates to a conveyor arrangement for conveying tobacco.

Tobacco becomes relatively strong after harvest, i. dried to a residual moisture content of about 9% to 12% and usually for shipping in cuboid or cylindrical bales or packages pressed, although other forms of compression are possible. The tobacco may be pure vorentripptes Blattgut (without significant rib portions). The removed before drying ribs, which are processed separately and the leaf tobacco mixed again, can also be pressed and shipped in a dry state. The pressed and relatively dry raw tobacco can be stored in this state for a long time.

If this relatively dry tobacco is to become smoke products, e.g. Cigarettes are processed, so it is necessary in the known processing methods and tobacco processing plants to solve the individual leaves (or pieces of leaves) or ribs (or pieces of ribs) in the pressed bales of each other again and to separate. Since the leaves strongly adhere to each other and are very dry, making them fragile and very sensitive to mechanical effects, the loosening must be gentle. The method of dissolving, which is predominantly used today, involves wetting and dissolving the bales with steam (heat) and water after careful mechanical comminution in a conditioning drum.

For the preparation of the harvested tobacco leaves, several treatment steps are carried out, so that cut tobacco or fine tobacco cut is provided for further processing in cigarette manufacturing machines at the end of the treatment process. Cut tobacco usually undergoes a treatment prior to its finishing, which essentially comprises the following steps: dissolving, conditioning the tobacco by preheating and moistening, sowing the tobacco, mixing and cutting the tobacco, drying the tobacco, sieving and cooling the tobacco, and flavoring the tobacco tobacco. The mixing of tobacco is also called dazzle.

From the publications DE-A-39 08 937 and DE-A-39 08 939 For example, methods of making cut tobacco are known.

In addition, in the document DE-A-197 56 217 discloses a method for the treatment of fine-cut tobacco, wherein the individual treatment steps are explicitly carried out, so that reference is expressly made to this document.

The main process steps in the tobacco processing or in the so-called primary process consist of dissolving and conditioning the tobacco and addition of additives, separating and cutting the tobacco, drying and blending. In addition, ancillary process steps can be performed in addition. These secondary process steps consist in the selection of undissolved parts, metal and foreign bodies. In addition, there is a Nebenprozessschritt in expanding the tobacco.

These process steps are used in so-called process elements, e.g. Dissolving and conditioning drums, mixing boxes, classifying devices, drying drums, etc. executed.

For example, it is off EP-B-1 273 240 a conditioning drum for treating tobacco is described. Also revealed EP-B-0 424 501 a device for treating tobacco with a treatment device which is cylindrical about an inclined axis, wherein the drum body has a tobacco inlet and a tobacco outlet. In this case, means for introducing treatment steam are provided in a loosening unit.

A device for releasing or treating tobacco material is still out WO-A-2012/025130 known. This device comprises a rotatable process drum which receives the tobacco material. After completion of the preheating phase, the process air is returned via a return line from the discharge side of the process drum to the feed side. In production mode, the process air circulates through the interior of the process drum and the return line. Continuously supplied steam regulates and regulates the temperature of the process air.

Out DE-A-10 2006 058 059 is a release and conditioning drum of the tobacco-processing industry, in which the tobacco is placed over an entry opening in an interior of the drum, dissolved in this and discharged via a discharge opening from the interior.

On the input side, moist and warm process air is introduced into the interior of the drum. On the output side, the process air is removed from the drum.

The object of the invention is to improve the delivery of tobacco from a treatment drum, such as from a conditioning drum or drying drum.

The problem is solved by a drum of the tobacco-processing industry for treating, in particular conditioning, tobacco, in particular cut tobacco, with a drum body rotatable about a rotation axis, the drum body having a feed side for introducing tobacco into the drum body interior and a discharge side for discharging tobacco has from the drum body inside with a discharge point for the tobacco, characterized in that the discharge side of the drum body is formed such that upon rotation of the drum body, the discharge point of the tobacco from the drum inside with respect to the axis of rotation of the drum body is varied or variable.

The invention is based on the idea that the dispensing of the tobacco from the interior of the drum is distributed in a line-like manner due to the design of the dispensing side, since the dispensing location changes during the rotation of the drum body. This results in a line-shaped area on a discharge device into which the tobacco is dispensed.

On the other hand, according to the prior art, a cylinder cut off at right angles has been provided on the discharge side of the drum body, whereby upon rotation of the drum body, the tobacco is spilled selectively onto a conveyor trough disposed below the discharge side.

Characterized in that according to the invention, now the discharge point of the drum body for the tobacco changes with the rotation of the drum body, the tobacco discharged from the drum body is linearly distributed on the conveyor trough arranged underneath, whereby the formation of a tabacco shopping in the middle of the conveyor trough in the application the tobacco is avoided from the drum.

Another advantage of the invention is that due to the variation of the discharge point of the tobacco from the inside of the drum during rotation of the drum body, the discharge of tobacco from the drum body no longer depends on the direction of rotation of the drum body. As a result, a broad distribution of the tobacco on the discharge device or discharge channel is achieved at the outlet or on the delivery side of the drum.

Preferably, the drum is formed as a conditioning drum, wherein for treating the tobacco in the drum body, for example, means for introducing steam and / or water and means for introducing process air or the like are provided to treat the tobacco accordingly. In addition, in a further embodiment, the drum is designed as a drying drum with at least one drying zone for drying tobacco.

In addition, it is provided in a development of the drum that the parallel to the axis of rotation of the drum body distance from the feed side to the discharge side in the circumferential direction of the drum body is not constant and / or varies, in particular outer, length of the drum body in the circumferential direction of the drum body.

For this purpose, it is further preferred in an embodiment that the drum body is designed as a cylinder jacket-shaped body with an oblique cut on the discharge side. Characterized in that the application side of the drum is formed as obliquely truncated or truncated cylinder, the tobacco is distributed transversely on the subsequent discharge device, such as Abförderrinne, upon rotation of the drum.

Furthermore, the object is achieved by a conveyor arrangement for conveying tobacco, preferably in a plant of the tobacco processing industry, for treating tobacco with a drum described above, in particular conditioning drum, wherein on the discharge side of the drum, a discharge device is arranged so that from the Drum body discharged tobacco to the discharge device, in particular conveyor trough is delivered or can be dispensed.

In addition, an embodiment of the conveyor assembly is characterized in that the drum and the discharge device are arranged such that the axis of rotation of the drum body of the drum and the, preferably linear, conveying direction of the tobacco on the discharge at an angle not equal to 0 ° and less than 120 ° , in particular at an angle of 90 °, are arranged relative to one another.

Preferably, the discharge device has a conveyor belt and / or a conveyor trough, in particular vibrating conveyor trough. In particular, the discharge device is designed as a conveyor trough or the like.

Furthermore, the object is achieved by a use of a drum described above, in particular conditioning drum, the tobacco-processing industry for treating, in particular conditioning, of tobacco in a plant of the tobacco-processing industry for the processing of tobacco. To avoid repetition is expressly made to the above statements.

Further features of the invention will become apparent from the description of embodiments according to the invention together with the claims and the accompanying drawings. Embodiments of the invention may satisfy individual features or a combination of several features.

• 1a bis 1d schematisch jeweils einen Ausschnitt einer rotierenden Konditioniertrommel mit ihrem Ausbringende zum Ausbringen von Tabak in verschiedenen Drehpositionen;
• 2 schematisch im Ausschnitt eine Draufsicht auf das Ausbringende der Konditioniertrommel.

The invention will be described below without limiting the general inventive idea by means of embodiments with reference to the drawings, reference being expressly made to the drawings with respect to all in the text unspecified details of the invention. Show it:

• 1a to 1d schematically each a section of a rotating conditioning drum with its applicator end for dispensing tobacco in different rotational positions;
• 2 schematically in section a plan view of the applicator end of the conditioning drum.

In the drawings, the same or similar elements and / or parts are provided with the same reference numerals, so that apart from a new idea each.

In the 1a to 1d are each different rotational positions of a conditioning drum 10 for conditioning of tobacco inside the drum shown in the neckline. Here is in the 1a to 1d each the application side 12 the conditioning drum 10 shown.

The conditioning drum 10 has a (not shown here) inlet opening for introducing tobacco into the interior of the drum, wherein in the drum interior of the conditioning drum 10 the introduced tobacco product is treated or conditioned. During the treatment of the tobacco becomes the conditioning drum 10 around its axis of rotation 14 rotates, so that during the rotation of the conditioning drum 10 the tobacco inside the drum from the inlet side to the application side 12 is encouraged. The conditioning drum 10 is part of a plant for processing tobacco and arranged substantially horizontally. For example, the conditioning drum 10 with an inclination angle of 0 ° to 10 ° with its axis of rotation 14 aligned to the horizontal.

At her application side 12 has the conditioning drum 10 a discharge opening, so that during the rotation of the conditioning drum 10 Tobacco is conveyed out of the conveyor drum and the falling out tobacco on a discharge channel 20 falls, which is below the conditioning drum 10 at the application side 12 is arranged. Here is the discharge channel 20 formed stationary and has, for example, a conveyor belt, which from the conditioning drum 10 precipitating tobacco. The conveying direction of the discharge trough 20 is in the embodiments according to 1a to 1d each perpendicular to the plane. The direction of the falling out tobacco is by an arrow 16 each schematically indicated.

At the application side 12 is the conditioning drum 10 formed with a chamfer, so that the drum body of the conditioning drum 10 is formed in the manner of an obliquely cut cylinder.

In 1a is the conditioning drum 10 shown in a position where the application side 12 is arranged so that the largest length of the drum body of the discharge chute 20 is facing. Here, the tobacco is on the right edge of the discharge channel 20 discarded.

In 1b is the position of the conditioning drum 10 shown in which the conditioning drum 10 opposite to the 1a shown rotated position by 90 °. By the rotation of the conditioning drum 10 changes due to the chamfered contour of the application side 12 the position of the delivery point of the tobacco to the conveyor trough 20 , Opposite the in 1a shown dispensing of tobacco takes place in the 1b shown position the delivery of tobacco to the discharge channel 20 in the middle of the discharge chute 20 ,

Then the conditioning drum 10 rotated further by 90 ° so that the conditioning drum 10 in the 1c drawn position in which the conditioning drum 10 is arranged so that the shorter end of the application side 12 the discharge channel 20 is delivered, whereby tobacco in this position on the left edge or in the left region of the discharge channel 20 is delivered. Then the conditioning drum 10 rotated by 90 °, so that the in 1d shown position of the conditioning drum 10 is taken. This turns tobacco out of the conditioning drum 10 in the middle of the discharge chute 20 discarded.

Due to the tapered design of the application side 12 the delivery point of the tobacco changes to the discharge channel 20 , so that with the continuous rotation of the conditioning drum 10 also the position of the delivery point of the tobacco in the discharge channel 20 each changes.

Will the in 1d illustrated conditioning drum 10 rotated by 90 °, is the conditioning drum 10 again in the 1a position shown.

By changing the delivery point of the tobacco from the application side 12 in relation to the stationary discharge trough 20 is due to the rotation of the conditioning drum 10 also the delivery point or the delivery point of the tobacco from the application side 12 changed accordingly, whereby the entire width of the discharge channel 20 according to good use.

In 2 is a plan view of the conditioning drum 10 with the below the conditioning drum 10 arranged Abförderrinne 20 shown. 2 shows the conditioning drum 10 in a position from above according to the in 1d position shown. By the rotation of the conditioning drum 10 results from the dispensing or leakage of tobacco from the conditioning drum 10 a linear delivery area B , in depending on the rotational position of the conditioning drum 10 the tobacco from the conditioning drum 10 is delivered. A corresponding line-shaped delivery area also arises when the in 2 illustrated conditioning drum 10 is also rotated in the other direction, in which case the tobacco is preferably conveyed away in the other direction (to the left).

All mentioned features, including the drawings alone to be taken as well as individual features that are disclosed in combination with other features are considered alone and in combination as essential to the invention. Embodiments of the invention may be accomplished by individual features or a combination of several features. In the context of the invention, features which are identified by "particular" or "preferably" are to be understood as optional features.

LIST OF REFERENCE NUMBERS

10

conditioning drum

12

Ausbringseite

14

axis of rotation

16

arrow

20

Abförderrinne

B

Area

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 3908937 A [0005]
• DE 3908939 A [0005]
• DE 19756217 A [0006]
• EP 1273240 B [0009]
• EP 0424501 B [0009]
• WO 2012/025130 A [0010]
• DE 102006058059 A [0011]

Claims (7)

Drum (10) of the tobacco processing industry for treating, in particular conditioning, tobacco, in particular cut tobacco, with a about an axis of rotation (14) rotatable drum body, wherein the drum body has a Einbringseite for introducing tobacco into the drum body interior and a Ausbringseite (12) Application of tobacco from the drum body interior having a discharge point for the tobacco, characterized in that the discharge side (12) of the drum body is formed such that upon rotation of the drum body, the discharge point of the tobacco from the drum inside with respect to the axis of rotation (14) of the drum body is varied or variable. Drum (10) after Claim 1 , characterized in that the parallel to the axis of rotation (14) of the drum body distance from the insertion side to the discharge side (12) in the circumferential direction of the drum body is not constant and / or the, in particular outer, length of the drum body in the circumferential direction of the drum body varies. Drum (10) after Claim 1 or 2 , characterized in that the drum body is formed as a cylinder jacket-shaped body with an oblique cut on the discharge side (12). Conveying arrangement for conveying tobacco, preferably in a plant of the tobacco processing industry, for processing tobacco with a drum (10) according to one of Claims 1 to 3 , wherein on the discharge side (12) of the drum (10) a discharge device (20) is arranged, so that discharged from the drum body tobacco is discharged to the discharge device (20) or can be dispensed. Conveyor arrangement according to Claim 4 , characterized in that the drum (10) and the discharge device (20) are arranged such that the axis of rotation (14) of the drum body of the drum (10) and the, preferably linear, conveying direction of the tobacco on the discharge device (20) in one Angle not equal to 0 ° and less than 120 °, in particular at an angle of 90 °, are arranged to each other. Conveyor arrangement according to Claim 4 or 5 , characterized in that the discharge device (20) has a conveyor belt and / or a conveyor trough, in particular vibrating conveyor trough. Use of a drum (10) of the tobacco processing industry for treating, in particular conditioning, tobacco according to any one of Claims 1 to 3 in an annex of the tobacco processing industry for the processing of tobacco.

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