JP2014117279A - Device and method for collecting and discharging free particles that occur during conveying of rod-shaped items for the tobacco industry - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple and compact device for collecting and discharging free particles that occur by way of a pneumatic transport conduit for conveying rod-shaped items, including powder or granular particles, in a state oriented in a longitudinal axis direction during transfer of the rod-shaped items from one transmitting station to one receiving station in the tobacco processing industry.SOLUTION: A device 10 is constituted as a passive separation system in terms of the collection and discharge of free particles. In the method mentioned above, the free particles are discharged from a guide channel by an abrupt volume expansion due to a cross-section ratio between the guide channel and a separation chamber 11 when a stream of the rod-shaped items flow into the device 10.

Description

The present invention relates to a rod-shaped article in the longitudinal direction during the delivery of an article containing rod-shaped, powdered or granular microparticles in the tobacco processing industry from one delivery station to one receiving station. Of free particulates resulting from a pneumatic conveying conduit that transports in an oriented state.
A device configured and installed for capture and extraction,
The apparatus comprises a casing forming a separation chamber, a supply member, and an outflow member for rod-shaped items,
At that time, between the supply member and the outflow member, a guide member having a guide channel for guiding rod-shaped items is provided through the separation chamber inside the separation chamber. In addition, the present invention relates to the above-described apparatus in which the guide channel of the guide member is in a coupled state with the separation chamber having a larger cross section than the guide channel through the opening.

Furthermore, the present invention provides
During the delivery of rod-shaped articles containing powdered or granular particulates in the tobacco processing industry from one delivery station to one receiving station, the rod-shaped article is in a longitudinal orientation. Of free particulates generated via a pneumatic conveying conduit
A method for acquisition and derivation, comprising:
This method comprises the following steps:
The flow of rod-shaped items (Strom) using pneumatically compressed air for the capture and derivation of fine particles, in particular into the separation chamber of the device according to any one of claims 1 to 13; Supply,
The air flow of pneumatic compressed air with free particulates redirected from the guide channel of the guide member in which the flow of rod-shaped items is guided through the separation chamber in the guide channel; In contrast, the flow of rod-shaped items in the guide channel is further transported through the separation chamber (geforertt),
Separation of fine particles released from the flow of rod-shaped items inside the separation chamber;
-The delivery of a rod-shaped article flow from the device (Ausgeben),
-On the other hand, the released fine particles in the separation chamber are collected and separated out.
It relates to the above method in a manner having steps.

Such an apparatus and method provides for the tobacco processing industry to separate or derive the free particulates of each mode from the stream of rod-shaped articles of the tobacco processing industry that have been transported using pneumatic compressed air. Used within. In the case of transporting rod-shaped articles in the tobacco processing industry, where the articles are provided with filters or filter rods in particular, from one delivery station to one receiving station via one pneumatic conveying conduit That is, during the launch of a so-called rod-shaped item, the material is dissociated from one place to another, or individual particles are dissociated from one item to another, and as free particles, inside the carrying conduit. To fly.
In the examples of filters or filter rods containing powder or granular particulates, eg charcoal particulates, in addition to the original filter base material, so-called filter tows, or other filter raw materials ,
This means that the individual charcoal particulates and / or the individual fibers of the filter material are dissociated from and released from the filter or filter rod based on delivery with the firing or compressed air. It means that it is moved inside the conveying conduit.
By firing the filter or filter rod with compressed air through the transport conduit, along with the filter or filter rod, the released particulates are likewise transported via the transport conduit to the receiving station. And therefore impedes the operation of this receiving station. The above examples for the transport of filters or filter rods should be understood accordingly as transport of tobacco products, for example tobacco stock, as well as other powdered or granular particulates.

It is known to provide a sort of weir in the transport conduit or to bring the weir together into the transport conduit in order to guide the released particulates from the transport conduit.
In other words, after the delivery station and / or before the receiving station, a device is provided in the transport path for the flow from the rod-shaped item, with this device, The liberated particulates are separated and derived from the rod-shaped article stream.
Such an apparatus, which is also referred to as a charcoal capture device in the example of a filter containing charcoal, is known, for example, from US Pat.
The conveying device has one conveying conduit, which in one part has a gate member (Torglied), the gate member being a rod-shaped item from the conveying conduit. It can be opened for derivation. The gate member is provided in the curved portion of the transport conduit.
In this curved portion region, a partition extending in the longitudinal direction is provided inside the transport conduit, and the non-adherent material dropped from the rod-shaped article using this partition. Is removed from this transport conduit through one opening.
This solution, however, is problematic with respect to the sealing properties required during the feed operation, in particular because of the flip-up gate member. Furthermore, this solution induces a large structural volume.
Yet another drawback is that not only rod-shaped items, but also free particulates are transported through this transport conduit, especially due to the tortuous guidance of the transport conduit, which requires high energy requirements. There is to be.

From US Pat. No. 6,057,056, an apparatus for the delivery of a filter rod containing a powdered or granular product having the features of the superordinate concept of claim 1 is known.
The device from this known patent document describes a capture chamber provided in the region of the transfer conduit, which surrounds the transfer conduit. The capture chamber has a blown air conduit connected to a blown air connection, with which the blown air is radially introduced into the capture chamber and the transport conduit. And can be introduced.
As the flow of rod-shaped items passes through the capture chamber, the lateral air flow captures the loosely separated particles separated from the rod-shaped item and these particles are captured by the chamber walls of the capture chamber. Here, these fine particles descend to the bottom and are removed via the discharge connecting pipe.
Said capture and derivation is therefore carried out by the introduction of energy, in addition to the pneumatic compressed air for the transport of goods flow (Fordern), so that this known device is an active system It is a problem related to.
This known device has the disadvantage of requiring a structure that requires a complex and large structural space along with a relatively high operating cost due to the active supply of additional energy. . In other respects, the flow of the rod-shaped item is subjected to further loads and / or excursions by the lateral air flow.

European Patent Application No. 43 38 369 A1 European Patent No. 1 038 452 B1

  Therefore, the problem underlying the present invention is to provide a simple and compact device for the capture and derivation of free particulates that is handled with care so as not to impair the quality of the rod-shaped article. is there.

This problem is solved by an apparatus of the type described at the outset, which is formed as a passive separation system with respect to the capture and derivation of free particulates.
As a passive separation system, one separation system is understood, which allows the derivation or derivation of free particulates without energy supply.
In other words, this device is designed as an inactive system, so that no additional energy is input to the pneumatic compressed air for the transport of rod-shaped items. It may be characterized by that.
This capture and derivation is provided exclusively by a structural configuration, for which reason the structure of the device according to the invention is particularly simple and particularly compact.
A further advantage is that the arrangement according to the invention allows the loose particles to be captured early and close together in the vicinity of the delivery unit or in the delivery unit. It can be derived from a simple transport system.

Suitably, the casing is formed of at least one separation module, wherein this or each separation module is linearly oriented and consistently constant with respect to the inner cross section. Two separation chamber portions are provided for the formation of a separation path that is straight and essentially constant in cross section.
This embodiment also induces a simple and compact device.

Advantageously, the casing is assembled from a number of separation modules, which are releasably and sealed together in order to form a pressure-sealing system in operation. .
By means of this modular construction of the casing, on the one hand a particularly compact construction can be achieved, and on the other hand the length of the separation path can be adapted as required. The casing formed from a number of separation modules embodies a craft-und formfulness system, which is a simple and compact way of the device. Guarantee pressure sealing.
In one variant of the casing, the casing is basically integrally formed and has a separate, firmly connected supply member and / or an outflow member. In this way, in particular, the washability and / or maintenance possibilities remain guaranteed.
In addition, the releasable supply member and / or the outflow member allow the exchange of a size-fit member inside the casing.

In a further advantageous configuration of the invention, the guide member is formed eccentrically and preferably parallel to the central axis A of the separation chamber with respect to the section of the separation chamber.
Due to the eccentricity of this guide member and thus the transport of the rod-shaped article flow through said separation chamber, an advantageous and pre-given flow direction or drop direction is formed for the loose particles. .
Advantageously, the guide member is provided in an upwardly offset manner with respect to the longitudinal central axis A of the separation chamber, in particular in the case of a horizontally oriented device, and is therefore pneumatic The flow of particularly fine particles formed by the compressed air is directed downward.

In an advantageous embodiment of the invention, an additional member is provided between the supply member and the separation module closest to the conveying direction F of the rod-shaped article, and this additional member accommodates loose particles. And a bulge for expanding the volume of the separation chamber.
In any case, in addition to the already existing volume expansion, the bulges are conditioned by the larger section of the separation chamber compared to the section of the conveying conduit, in particular the flow-in area of the flow of rod-shaped goods in the separation chamber. In which an additional volume expansion occurs,
This, on the one hand, enhances the slowing down of the free particles, so that these particles no longer reach the spill member due to energy removal, but rather fall down earlier than that, and on the other hand Flow is led downward.
In other words, this bulging part is important to capture and lead out the released fine particles during inflow into the device due to a sudden volume change and accompanying flow interruption so as not to particularly impair quality. Assist with the way you handle.

Advantageously, said bulge is closed in the radial direction with respect to the guide channel, so that the connection of the bulge to the separation chamber exists only in the longitudinal direction in the operating state.
Thus, the air flow is induced further down to collect and extract free particulates.

A suitable further configuration is characterized by the fact that the guide member is associated with the guide member.
This guide member also serves to guide the air flow further downward.
With this guide member, in the transport conduit, basically laminar flow does not disturb the flow of rod-shaped items through the separation chamber, on the one hand, on the other hand. To a turbulent flow that induces the deflection of free particles. In other words, the guide member creates a non-uniform pressure profile inside the separation chamber, which assists in the derivation of free particulates.

The guide member is particularly preferably formed in the shape of a turbine blade and in particular within the first third of the separation path.
Due to the formation and arrangement of this guide member in the area in front of the separation chamber with respect to the conveying direction, the air flow and thus the released fine particles are deflected into the separation chamber as soon as the inflow is finished, It is thus ensured that no free particulates reach the outflow part.

An advantageous embodiment of the invention is characterized in that the guide member is modularly integrated into this casing.
This guide member, which can be formed in one piece or assembled from multiple pieces, can therefore be easily removed, in particular for cleaning purposes and / or during size changes, or It is interchangeable and this induces easy handling in a simple and compact construction mode.

Advantageously, the separation chamber is connected to an extraction device.
Using this take-out device, the collected free fine particles are removed from the separation chamber. This take-off device forms one central outlet area for the loose particles in a space-saving manner.

An advantageous further configuration is characterized in that the extraction device comprises at least one capture container and / or one weir.
This weir ensures in a simple manner the removal of free particulates without pressure loss.
In the case of one embodiment with a capture container, each separation module is advantageously provided with its own capture container.

In a further alternative embodiment, the separation chamber is advantageously formed in a hopper shape in cross-section in the direction of the extraction device.
In other words, the separation chamber has a steep angle in the direction of the take-out device for optimal bulk pile formation. This facilitates the collection and supply of free particulates to the removal device.

Conveniently, the supply member and the outflow member have connecting means for pressure-sealing connection with a conveying conduit for conveying rod-shaped items.
With this advantageous embodiment, the device according to the invention can be integrated into a conveying conduit between the delivery station and the receiving station, particularly simply and in particular by pressure sealing.

The problem is likewise achieved by a method having a process in the manner described at the beginning,
The released fine particles are led out from the guide channel by the rapid volume expansion caused by the cross-sectional ratio of the guide channel and the separation chamber when flowing into the apparatus from the flow of the rod-shaped article. Solved by.
In other words, the separation of these free particulates takes place in a passive manner, i.e. without additional energy input. Conversely, from the air flow, the volume expansion or expansion process removes so much energy that these free particulates no longer reach the outlet of the device.

Advantageously, the flow of the rod-shaped item is supplied eccentrically with respect to the central axis A of the separation chamber with respect to the section of the separation chamber, so that the air flow of the pneumatic compressed air is guided downwards. The
With the air flow biased downward, similarly, these free particulates are deflected downward from the guide channel, thus effectively preventing the transfer of these free particulates from the device. .

In the method, the air flow of the pneumatic compressed air is caused to flow inside the separation chamber and / or inside the separation chamber by a guide member when the air flow into the separation chamber flows into the separation chamber. It is particularly advantageous if the flow is interrupted on the inside.
These guide members deflect this air flow downward. These bulges induce further volume expansion of the separation chamber.

  The advantages afforded from the individual method steps have already been described in the context of the device according to the invention, which is particularly well adapted to the implementation of the method, for which reason avoidance of repetition is here For that, please refer to the corresponding chapter.

  Further suitable and / or advantageous features and embodiments and method steps are given by the dependent claims and the description. The principle of particularly advantageous embodiments and methods is described in detail below with reference to the attached drawings.

1 is a schematic side view of a first embodiment of an apparatus according to the invention. Fig. 2 is a front view of the device in section II-II according to Fig. 1. FIG. 6 is a schematic side view of yet another embodiment of an apparatus according to the present invention. It is a schematic perspective view of the additional member which has a guide flow path and a swelling part. It is a schematic perspective view of a guide member. FIG. 6 is a perspective view of an individual module of a guide member without a guide member. FIG. 6 is a side view of a separate module of guide members having guide members. FIG. 8 is a perspective view of an individual module according to FIG. 7.

The device illustrated in the figure serves to capture and extract free particulates that are produced during the transfer of a filter containing charcoal particulates from one delivery station to one receiving station.
The present invention, however, is not limited to the capture and derivation of free particulates during filter transport.
Rather, the device is similarly
Tobacco industry rod-shaped items from one delivery station to one receiving station-these items include, for example, enclosed and unenclosed filter rods, tobacco stocks, tobacco filters, and the like All other free particulates, e.g. tobacco fibers, filter tow fibers, or other additive substances that are produced during the transfer of other items-or are dissociated from these rod-shaped items For the purpose of capturing and deriving.

The device 10 described below and illustrated in the figure is
During the delivery of rod-shaped articles containing powdered or granular particulates in the tobacco processing industry from one delivery station to one receiving station, the rod-shaped article is in a longitudinal orientation. Formed and installed for the capture and evacuation of free particulates resulting from a pneumatic conveying conduit that transports.
The apparatus 10 includes a casing 12 that forms a separation chamber 11, and a supply member 13 and an outflow member 14 for rod-shaped items. Between the supply member 13 and the outflow member 14, a guide member 15 having a guide channel 16 for guiding rod-shaped items is provided inside the separation chamber 11 so as to penetrate the separation chamber 11. ing.
The guide channel 16 of the guide member 15, which has substantially the same inner diameter as the transport conduit to be connected to the apparatus 10, has a larger cross section than the guide channel 16 through the opening 17. Is in a combined state.
To facilitate the transfer of these items into and out of the guide channel 16 from this transport conduit and especially to avoid collision edges, in particular on the inlet side, One supply auxiliary body 35 and one discharge auxiliary body 36 are provided on the outlet side.

The volume expansion takes place during the transition from the supply member 13 carrying the supply tube 18 into the separation chamber 11.
The inner diameter of the transport conduit not shown, and the inner diameter of the guide channel 15 of the guide member 15 following the transport conduit are smaller than the inner diameter or cross section of the separation chamber 11, and therefore
This separation chamber 11 is
A single expansion chamber is embodied in which the velocity of the air flow formed by the pneumatic compressed air for conveying the rod-shaped item is reduced when it flows into the separation chamber 11. . In other words, the air flow is suddenly decelerated in the separation chamber 11, and accordingly, the fine particles that have been released are also decelerated by the removal of energy.
By having an opening 17 that is dimensioned so that the guide channel 16 is not adapted to pass through rod-shaped items, the air flow is directed to the free particulates. At the same time, it can flow out of the guide channel 16. The supply tube 18 and the outflow tube 19 preferably have an inner diameter corresponding to the inner diameter of the transport conduit. As described above, a potential collision edge is avoided by the supply auxiliary body 35 and the discharge auxiliary body 36.

Said device 10 is characterized in that according to the invention, this device 10 is formed as a passive separation system with respect to the capture and derivation of free particulates.
One passive separation system allows the separation of free particulates from a rod-shaped article stream, i.e. the capture of the free particulates and the derivation of the free particulates without an additional external energy supply. It is characterized by being possible. By means of the pneumatic compressed air for the transport of the rod-shaped items, these compressed air reach the device 10 or more precisely into the separation chamber 11 together with the released fine particles.
This device 10 is configured in accordance with the present invention such that the release of free particulates can be achieved exclusively with a structural configuration.

The features and further configurations described below may be realized by themselves or in combination with one another in advantageous embodiments of the invention.
It is clearly pointed out that these features summarized within the scope of the claims and / or in the description of the figures can likewise constitute further further said device 10 as well. .

The casing 12 is formed from at least one separation module 20. Advantageously, however, a number of separation modules 20 are assembled into one casing 12.
In the illustrated embodiment, six separation modules 20 are provided. However, the number of these separation modules 20 can vary. Each separation module 20 preferably has a cylindrical outer surface M. On the inside, each separation module 20, when viewed in the conveying direction—advantageously exclusively—is straightly and fundamentally divided into one separation chamber part that is linearly oriented and consistently constant in cross section. In order to form the separation chamber 11 having a separation path having a constant cross section.
Advantageously, these separably and separably separated separation modules 20 that are formed identically thus form in the operating state one pressure-sealing system, which The length can be changed almost appropriately with respect to the longitudinal direction, and can be particularly enlarged. On the inlet side and outlet side, the device 10 can be connected to a pressure-sealing conveying conduit, respectively, with a supply tube 18 and an outlet tube 19.
Further, as described above, the casing 12 is similarly formed from one integrally formed tube portion.

In particular, when the device 10 has a vertically oriented installation position, the guide member 15 is formed in the center (concentric) with respect to the cross section of the separation chamber 11. Advantageously, the guide member 15 is, however, eccentric with respect to the cross-section of the separation chamber 11 and, in particular, in the case of a horizontally oriented installation position, and advantageously the central axis A of the separation chamber It is formed in parallel to.
In the latter case, the guide member 15 is advantageously present above the separation chamber 11 or the central axis A of the cylindrical casing 12. In practice, the position and orientation of the guide member 15 can be similarly changed inside the separation chamber 11 and can optionally have a similarly inclined orientation. It is.

Further, as already described above, the guide member 15 is formed in an integrally formed state so that the only guide member 15 extends from the supply member 13 to the outflow member 14. It is possible to be.
Advantageously, this guide member 15, however, is formed from individual guide member segments 21, with one unique guide member segment 21 belonging to each separation module 20. . The length of the guide member segments 21 corresponds to the length of the separation module 20 when viewed in the transport direction F. These guide member segments 21 are all formed identically. Advantageously, these guide member segments 21 are, however, formed individually.
The guide member 15 has guide ribs 22 that are oriented inward, the guide surfaces 23 of the guide ribs 22 form a guide channel 16, and a rod-shaped article is aligned. (Zentriert) guide.
On the one hand, the rib structure of the guide member 15 ensures that these rod-shaped items are guided from the supply member 13 to the outflow member 14 with high reliability. On the other hand, this rib structure ensures that the air flow can flow out of the guide channel 16 with the loose particulates.

In an advantageous embodiment, an additional member 24 is provided between the supply member 13 and the separation module 20 that is closest to the conveying direction F of the rod-shaped article, and this additional member accommodates loose particles. And a bulge portion 26 for expanding the volume of the separation chamber 11.
The guide channel 25 is selectively formed and installed for accommodating the guide member 15 as well. This additional member 24 is advantageously formed in exactly the same way as the one separation module 20 with respect to its length in the conveying direction F, and likewise has a cylindrical outer surface M.
The bulge 26 is closed with respect to the guide channel 25 in the radial direction. In other words, the separation wall 27 exists between the guide channel 25 and the bulging portion 26. In practice, this bulge 26 at least partially wraps around the guide channel 25 with respect to the outer periphery. In other words, this bulge 26 is open only in the longitudinal direction, so that there is a binding or transition to the adjacent separation chamber part of the separation module 20 only in the longitudinal direction. .

It is possible for the guide member 15 or the individual guide member segments 21 to have a guide member 28. These guide members 28 can extend over the entire length of the guide member 15. Advantageously, these guide members 28 extend only over a part of the length of the guide member 15, or only the individual guide member segments 21 have the guide members 28.
In the illustrated embodiment, six separation modules 20 are provided with six guide member segments 21, and of these guide member segments 21, both first guide member segments 21 in the transport direction F guide guide members 28. Have. These guide members 28, preferably formed in the shape of turbine blades, are therefore preferably provided in the first third of the separation path. However, the number and shape of the guide members 28 and the distribution of the guide members over the length of the guide member 15 can vary.
The guide member 15 is firmly coupled to the casing 12. Advantageously, the guide member 15 and / or the guide member segments 21 are modularly integrated into the casing 12.
Similarly, these guide members 28 can be provided in the casing 12 without depending on the guide member 15, for example.

Advantageously, the separation chamber 11 is connected to an extraction device 29 for the removal of free particulates. The position of the take-out device 29 with respect to the separation chamber 11 can be freely selected.
Advantageously, this take-out device 29 is located in the bottom region of the separation chamber 11 in order to be able to accommodate and discharge free particles that accumulate at the bottom, especially in the case of horizontal orientation of the separation chamber 11. Is provided. The retrieval device 29 comprises, in the illustrated embodiment, at least one capture container 30 (see, eg, FIG. 1) and / or one Schleuse 31 (see, eg, FIG. 3). Yes.
In the case of the embodiment according to FIG. 1, each separation module 20 is provided with a separate capture container 30. These capture containers 30 are fixed to the casing 12 so as to be dissociable and in a sealed state.
In the case of the embodiment according to FIG. 3, one common weir 31 is provided in the separation chamber 11. Using this weir 31, the removal of free particulates without pressure loss is assured throughout the operation of the device 10. Combinations of capture vessel 30 and weir 31 and other embodiments of removal device 29 can, however, be used as well.

Advantageously, the separation chamber 11 is formed in a hopper shape in cross-section in the direction of the take-out device 29. One example of a separation chamber cross-sectional shape with this steep chute angle can be seen from FIG.
In yet another, not specifically illustrated embodiment, the cross section of the separation chamber 11 has other shapes as well, for example, an oval shape, a water drop shape or a triangular shape, and an extension (Verlaeufe). It is possible. As a complete illustration, mention may be made of a consistent cylindrical or circular cross section.

The supply member 13 and the outflow member 14 have connecting means for pressure-sealing connection with a conveying conduit for conveying rod-shaped items.
In the illustrated embodiment, these connecting means are formed by a supply tube 18 or an outflow tube 19. These connecting means, however, can likewise be formed by so-called quick closing devices or by other suitable connecting means.
Coupling using these connecting means is therefore meaningful. This is because the device 10 is usually a component of a facility (not shown) consisting of a delivery station and a receiving station, in which the delivery station and the receiving station have a transport conduit. Are connected to each other.
The device 10 can, however, also be integrated together in a delivery station. In an advantageous embodiment, the device 10 is formed in a fully fixed manner and all the components of the device 10, in particular the supply member 13, the casing 12, the outflow member 14, the guide The member 15 as well as the take-out device 29 are formed unbewegbar in the activated state.

In the following, the principle of the method is explained in detail based on the figures:
The flow of rod-shaped items is pushed from one delivery station to one receiving station via one transport conduit using pneumatic compressed air.
During the transport of this flow of these rod-shaped items, this flow is guided by the device 10.

A rod-shaped product stream (Strom) is fed into the separation chamber 11 of the device 10, in particular of the device according to claim 1, using pneumatically compressed air. .
In the separation of the fine particles released from the flow of the rod-shaped article, the air flow of the pneumatic compressed air having the free fine particles is redirected from the guide flow path 16 of the guide member 15 inside the separation chamber 11. It is done in the way. Within this guide channel 16, the flow of rod-shaped items is guided through the separation chamber 11. The air flow with the free particulates is deflected or redirected, whereas the flow of rod-shaped items is further conveyed through the separation chamber 11.
The flow of rod-shaped items is delivered from the device 10.
On the other hand, the released fine particles in the separation chamber 11 are collected and separated and led out.

According to the present invention, the released fine particles are flowed from the rod-shaped article into the apparatus 10 only by rapid volume expansion due to the cross-sectional ratio of the guide channel 16 and the separation chamber 11 only. Derived from the guide channel 16.
Since the cross section of this separation chamber 11 is clearly larger than the cross section of the guide channel 16 and likewise the flow channel of the rod-shaped article in its transport conduit, the transport conduit transported by the device 10,
In contrast to the transport conduit, in which the uniform pressure characteristic is dominant in the transport conduit, in the separation chamber 11 non-uniform pressure characteristics are dominant.
In brief, in the separation chamber 11, Chaos, which induces that free particles are prevented from continuing linear flight through the separation chamber 11, is dominant.

Advantageously, the flow of the rod-shaped item is supplied eccentrically with respect to the central axis A of the separation chamber with respect to the section of the separation chamber 11, so that the air flow of the pneumatically compressed air is guided downwards. Is done.
In addition, the air flow of the pneumatic compressed air is caused to flow inside the separation chamber 11 and / or inside the separation chamber 11 by the guide member 28 when flowing into the separation chamber 11. The flow can be interrupted inside the bulge 26 in FIG. In other words, the laminar flow, which is dominant in the conveying conduit, is converted inside the separation chamber 11 into a turbulent flow.
The entire process described above assists in the passive separation of free particulates from the flow of rod-shaped items in such a way that energy is removed from the air flow as it flows into the separation chamber 11.

DESCRIPTION OF SYMBOLS 10 Apparatus 11 Separation | separation chamber 12 Casing 13 Supply member 14 Outflow member 15 Guide member 16 Guide flow path 17 Opening part 18 Supply pipe body 19 Outflow tube body 20 Separation module 21 Guide member segment 22 Guide rib 23 Guide surface 24 Additional member 25 Guide flow Path 26 Swelling portion 27 Separation wall 28 Guide member 29 Take-out device 30 Capture container 31 Weir 35 Supply auxiliary body 36 Discharge auxiliary body A Center axis F Transport direction M Outer surface

Claims (16)

Longitudinal orientation of the rod-shaped item during delivery of the item, including rod-shaped, powdered or granular particulates in the tobacco processing industry, from one delivery station to one receiving station Of free particulates generated via pneumatic conveying conduits transported in
A device (10) configured and installed for capture and extraction;
This device comprises a casing (12) forming a separation chamber (11), a supply member (13), and an outflow member (14) for rod-shaped items,
In this case, a guide member (16) having a guide channel (16) for guiding rod-shaped items between the supply member (13) and the outflow member (14) inside the separation chamber (11). 15) is provided through the separation chamber (11), and the guide channel (16) of the guide member (15) is connected to the guide channel (16) via the opening (17). In the above-mentioned apparatus in a state of being coupled with the separation chamber (11) having a larger cross-section than
Device characterized in that this device (10) is formed as a passive separation system with respect to the capture and derivation of free particulates. The casing (12) is formed from at least one separation module (20),
In this case, this or each separation module (20)
One separation chamber portion that is linearly oriented and consistently constant with respect to the inner cross section,
Device according to claim 1, characterized in that it is provided for the formation of a straight and essentially constant cross-section separation path. The casing (12)
Assembled from a number of separation modules (20),
3. A device according to claim 1 or 2, characterized in that the separation modules are releasably coupled to one another in a sealed state to form a pressure-sealing system in the operating state.   The guide member (15) is formed with respect to the section of the separation chamber (11) in an eccentric manner and preferably parallel to the central axis (A) of the separation chamber. The apparatus according to any one of 1 to 3. Between the supply member (13) and the separation module (20) closest to the conveyance direction (F) of the rod-shaped article,
An additional member (24) is provided, and this additional member is provided with one guide channel (25) for accommodating the released fine particles and one bulge portion (26) for expanding the volume of the separation chamber (11). The device according to any one of claims 1 to 4, characterized in that   The bulge (26) is in the radial direction with respect to the guide channel (25) so that the connection of the bulge (26) to the separation chamber (11) exists exclusively in the longitudinal direction in the operating state. 6. The device according to claim 5, wherein the device is closed.   7. The device according to claim 1, wherein a guide member (28) is attached to the guide member (15).   8. The guide member according to claim 7, characterized in that the guide member (28) is formed in the shape of a turbine blade and in particular is provided in the first one third of the separation path. apparatus.   9. Device according to claim 1, wherein the guide member (15) is modularly integrated into the casing (12).   10. The device according to claim 1, wherein the separation chamber (11) is connected to an extraction device (29).   11. Device according to claim 10, characterized in that the removal device (29) comprises at least one capture container (30) and / or one weir (31).   12. A device according to claim 10 or 11, characterized in that the separation chamber (11) is formed in a hopper shape in cross section in the direction of the take-out device (29).   2. The supply member (13) and the outflow member (14) have connecting means for pressure-sealing connection with a conveying conduit for conveying rod-shaped items. The apparatus according to any one of 12 above. During the delivery of rod-shaped articles containing powdered or granular particulates in the tobacco processing industry from one delivery station to one receiving station, the rod-shaped article is in a longitudinal orientation. Of free particulates generated via a pneumatic conveying conduit
A method for acquisition and derivation, comprising:
This method comprises the following steps:
Rod shape with pneumatically compressed air for the capture and extraction of fine particles, in particular into the separation chamber (11) of the device (10) according to any one of claims 1 to 13 Supply of goods flow (Strom),
The air flow of pneumatic compressed air with free particulates in the guide member (15) in which the flow of rod-shaped items is guided through the separation chamber (11) in the guide channel; In contrast to the direction of the guide channel (16), the flow of rod-shaped items in the guide channel (16) is further conveyed through the separation chamber (11). of,
Separation of fine particles released from the flow of rod-shaped items inside the separation chamber (11),
-Delivery of a flow of rod-shaped items from said device (10);
-On the other hand, the released fine particles in the separation chamber (11) are collected and separated out.
In the above method in a mode having steps,
The released fine particles from the flow of rod-shaped items,
Upon inflow into the device (10)
A method characterized by being derived from the guide channel (16) by rapid volume expansion due to the cross-sectional ratio of the guide channel (16) and the separation chamber (11).   The flow of the rod-shaped item is supplied eccentrically with respect to the central axis (A) of the separation chamber with respect to the cross section of the separation chamber (11), so that the air flow of the pneumatic compressed air is guided downwards. 15. The method of claim 14, wherein:   The air flow of the pneumatic compressed air is caused to flow inside the separation chamber (11) by the guide member (28) and / or when the separation chamber (11) flows into the separation chamber (11). The method according to claim 14 or 15, characterized in that the flow is interrupted inside the bulge (26) inside 11).

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