DE6604486U - DEVICE WITH AT LEAST ONE LARGE DRUM - Google Patents

Description

Patent Service Agency A 154

Vaduz / Liechtenstein August 25, 1969

Device for handling goods of all kinds, in particular textiles

The innovation relates to a device for treating (drying, steaming, fixing, etc.) preferably air-permeable Goods, in particular textiles, in loose, ribbon, web or strand form with a closed Housing, which is preferably divided by a partition into a fan room and a treatment room is, in which at least one sieve drum is arranged, on which the material is only held and conveyed by the suction and the sieve drum is assigned a fan wheel for generating the induced draft.

Devices for handling goods of all kinds with under Induced suction drums as a means of transport are common known. In these known devices, a fan wheel is on one or both end faces of each screening drum the sieve drum arranged. It is also known to have the fans in the sieve drum or outside in some way To be arranged at a distance from the sieve drum shell. With the known devices it is possible to screen drums up to one Use a maximum diameter of 2 meters. With such large diameters, however, the air distribution on the Sieve drum shell already very problematic and since oei the known systems in general the sieve drums are only partially in particular, are only half wrapped, so the utilization of these devices is also with such large Screen drum diameters not particularly favorable.

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these clamping rings should not be used, so ' can also preferably on both sides of the large drum a holding device can be provided or holding elements can be arranged onto which these clamping rings are pushed körnen and Wt * these clamping rings can hang until they are again should be used.

For more even ventilation of the material it is favorable, the GroßtroHusel with its sieve mesh- ^ Sslag su b-s = cover. For sensitive goods, instead of a screen cloth layer a fabric covering can also be provided. It is even cheaper if this fabric covering is pulled over the screen mesh covering, because then the air distribution is so even that even with dyes, the perforation does not show, or that even with material soaked with dyes and the like dye migration does not occur. Because this fabric covering is relatively is cheap, it can be quickly renewed.

If extraordinarily high product throughput speeds are required, Thus, according to a further advantageous embodiment, several large drum units can be connected in series and these large drum units preferably by a common conveyor belt arranged below the drums for feeding and removal of the goods are connected to one another. It is of course also conceivable to use large drum units with small ones To switch drums upstream and downstream. Such devices are generally only used for special fields of application Bring benefits.

Another significant advantage is that the heating pipes (Hippen pipes) are U-shaped and preferably can be arranged inclined in the individual chambers, with the two pipe ends for condensate drainage on the are arranged lower end of the radiator. Through this innovation according to the design and arrangement of the heating pipes

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an accumulation of condensate in the heating pipes is definitely avoided. This ensures that the heating pipes and the heating device has a uniform temperature at all points and the heat transfer from the heating device to the air is uniformly and consistently good in all places.

An embodiment of the device according to the innovation is shown in the drawing. Show it:

Pig. 1 shows a section through the fan chamber of a treatment device ,

Pig. 2 shows a section transversely through the device according to FIG. 1,

3 shows the transfer of the material to the sieve drum in one schematic representation and ^

Pig. 4 another way of transferring the material to the sieve drum in scheznatischer Larsxeixung.

The device shown consists of a housing 1, which is divided by a partition 2 into a treatment room 3 and a fan room 4. There is one in treatment room 3 Sieve drum 5 arranged, which for evenness and better air guidance of heating pipes 6 (upper half of Pig. 2) and / or is surrounded by a sieve body 7 (lower half of Pig. 2).

The sieve drum 5 has centrally arranged bearings 8 a bearing 8 is flanged directly to the housing 1 or the frame of the housing 1 and the other bearing to the nozzle star 9 of the Partition 2.

The nozzle star 9 is in the fan chamber 4 ″ in the fan wheel 10 associated with a drive 11 arranged outside the housing.

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The drive of the sieve drum 5 is not shown. It can be provided either centrally or on the screen drum shell will.

According to the innovation, the fan wheel 10 is surrounded by several chambers 14 in which the entire free cross section Heating pipes 12 are arranged. The heating pipes 12 are U-shaped and designed as Eippes pipes. You Su = un-ä Outgoing 15 of the heating pipes 12 are preferably to good ^ ondsnsatabführung at the lower end of the sloping · ^ arranged heating pipes 12. All chambers 14 hesitz equally sized openings 15 to the fan chamber 3, through which the heated air flows back into the treatment room 3. Chamber 16 does not have heating pipes 12 and is preferred closed to the treatment room 3. This chamber serves as a Lurt repellent for the removal of moisture enriched air.

As can be seen from Figures 3 and 4, the supply and removal of the material 17 takes place by means of a conveyor belt 18, the optionally pivotably mounted at one end for better adaptation to different material thicknesses. at With this type of feed, as in the case of that shown in FIG. 4, the sieve drum 5 is free of an inner cover.

When the material 17 is fed in and discharged according to FIG. 4, there are three rollers between the sieve drum 5 and the conveyor belt 18 and 20 arranged. The two outer rollers 19 serve to guide the material, while the middle roller 20 is preferably used is larger than the two rollers 19 and both the sieve drum 5 as well as the conveyor belt 18 is to touch when starting the device to detach the starting end of the material 17 from the conveyor belt 18 and to feed it to the sieve drum 5 and then the starting end for the removal of the material

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to solve the material 17 from the sieve drum 5 and in turn to be handed over to the belt 18.

The clamping elements listed in the description and other forms of embodiment, the device according to the innovation are not shown in the drawing in order not to make them excessively confusing. Ss is at the unillustrated elements are known, relatively eiDfachs and uncomplicated components, so that these elements can be dispensed with the perspective view.

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So far, drying devices with sieve drums with a diameter of approx. 1.80 m have been built. With these big ones Screen drum diameters, the fan wheels must also be selected to be large enough to accommodate the required To be able to apply services to hold the goods on the sieve drum shell. In the known sieve drum dryer the side fan wheels generally have a diameter that is only slightly smaller than the diameter the sieve drum is. The balancing problems and bearing requirements increase significantly with larger fan wheels to. E ^ is mainly to be ascribed to these difficulties, that it was previously considered impossible or economically justifiable, the screen drum diameter to enlarge over 2 meters. So far it is generally accepted that devices with such large screen drums are significantly more expensive to manufacture than devices with several smaller screen drums with the same support surface and that such devices are much less economical work. In the case of devices with several small screen drums, the transfer from one screen drum to the others turned the material over at the same time and ventilated it from the other side on the following drum screen, which was also the case is seen as a particular advantage. A further enlargement of the screen drum diameter has also failed so far on the commonly used heat sink units, which are caused by the formation of condensate and the necessary condensate drainage cannot be enlarged at will, these Difficulties and prejudices, it is essentially due to that drum sieve dryers have been known and built for over 40 years, but never tried was to build a sieve drum dryer with a drum over 2 meters in diameter.

However, it was recognized that, contrary to previous opinion, large drum dryers have considerable advantages in many cases

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offer compared to the previously known types. The ventilation principle can be used in an advantageous manner of a large drum dryer, i.e. when using a sieve drum with a significantly larger diameter than 2 meters, which is the subject of the innovation, and extensive looping of this sieve drum with the one to be treated Good, can also be used for materials that can only be stored on one side or that are too much to be relocated Tend to fiber confusion. Such materials could previously only be used on belt dryers or tenter frames with parallel or Nozzle ventilation are treated. This has the main disadvantage compared to ventilation, that much longer treatment times, especially drying times, are required, since the drying speed, especially in the case of felt-like Y / aren, with nozzle or parallel ventilation is more than ten times smaller than with aeration of the goods.

A large drum also offers advantages where web material is held on both sides or treated with tension must be in order to avoid uncontrolled shrinkage during treatment. This is particular This is the case with fabrics where an exact final width is required, which must not be less than this. With a large drum These clamping elements can be made relatively simple, while it is extremely difficult and only through Complicated constructions is possible to lead tensioning elements in a chain over several drums.

In the case of the sieve drum dryers known to date, the air is at the bottom of the housing and the top of the housing, i.e. above and below the sieve drum, returned from the fan chamber into the treatment chamber. The radiators are there horizontally above and below the fan wheel,

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so that the air expelled by the fan wheel first flows over the radiator and is heated up and then returned to the treatment room on both sides. Such an air flow is, however, with large drums no longer possible because the air distribution is here on the drum would be different and extremely unfavorable.

In an embodiment of the device according to the innovation, it is therefore proposed that the space around the fan wheel in to divide several chambers or return channels and to connect these chambers with a common treatment room through suitable Kinstrdmöffnungen, so that the treatment medium flowing out of the cells can be distributed evenly in the common treatment space and essentially radially to the sieve drum shell flows.

In order to provide chambers or return channels for the fan wheel, it also has the advantage that now the fan wheel expelled air is forced to sweep completely over the heater or /. between the heating pipes, which are generally designed as finned tubes to flow through, if you look for another embodiment according to the innovation, the heating device over the entire free cross section of each return channel or each chamber prefers, i.e. the finned tube batteries extend over the entire width of the return channel or each individual Chamber.

According to another advantageous embodiment, in No heating bodies in a chamber and this chamber as a discharge channel for the air enriched with moisture to use by attaching this ejection channel to the exhaust air

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shaft of the device connects and closes it against the treatment room, ie does not provide an opening for the passage of air into the treatment room in this chamber. However, it is also possible to provide a closable or adjustable opening in this chamber opposite the treatment room and also to make the air discharge opening adjustable in size using suitable flaps in order to be able to precisely regulate the amount of air to be discharged or to better adapt it to the respective drying process .

For even air distribution, it is also important that the Openings for the passage of the treatment medium between the ventilator room and treatment room essentially in each case Keep the chamber the same size and the same distance from the sieve drum shell. The ones in the corners of the fan room pointing chambers are to be closed by metal sheets so that the air cannot flow to the corner of the housing, but is diverted to the treatment room beforehand.

In order to obtain a stable and simple storage of the large drum, it is proposed for an advantageous embodiment, to arrange the drum as usual on centric bearings, but these bearings nsuerstens to the Flange the housing wall or the frame of the housing or the nozzle star of the partition wall directly. A special The axis or shaft on which the drum was previously supported is no longer necessary. Due to the direct storage of the drum on the Housing, the storage is also much more stable.

In another embodiment, m can advantageously for good, even air distribution around the large drum Radiators can be arranged with finned tubes. Instead of this radiator, however, another idea of innovation can be found

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for better air distribution and guidance around the sieve drum body a screen body can be arranged, which preferably consists of a number of easily removable or adjustable perforated metal sheets stored in cash; To provide such parts for additional air distribution and guidance, is especially useful when drying loose material.

A particularly economical construction results when the Large drum is designed for at least two adjacent working widths. This will increase the production output two large dryers achieved without significantly increasing the construction costs. In the case of a large drum, there is a side-by-side arrangement several working widths also easily possible. With such large drum diameters can still achieve an even air distribution and, above all, an even suction over the entire width of the drum can be obtained.

In the case of several working widths next to each other, however, it can also be advantageous in order to achieve high performance, if a fan chamber with one fan wheel each is assigned to the large drum on both sides.

In the case of a sieve drum with several working widths, it is proposed according to another innovation idea, this only partially, for example half, i.e. for one working width, designed as an air-impermeable drum and to make only the other part (the other half) air-permeable or perforated. Such a drum is particularly useful for drying dyes that tend to migrate if dried unevenly. With such Fabrics impregnated materials can in general cannot be dried on sieve drums, at least they cannot be pre-dried on sieve drums.

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Due to the contact heat, the areas of the fabric that lie on the sieve drum are opposed to the areas which are above the perforations, dried differently. This causes dye migration and different attachment äeä Feir bstöxf eä, what äü a cloudy appearance or even showing the perforation on the fabric.

In the case of the drum according to the invention, the non-perforated one can now be used Drum shell are pre-dried, for example by attaching an infrared heater to this part or particularly heats this part of the drum shell, so that contact drying takes place. Further drying options are conceivable. After one pass, the material can then be lifted off the drum and transferred to the adjacent working width be placed again on the drum in order to dry out quickly here according to the ventilation principle.

After a further innovation, for this purpose proposed a suitable device for "transferring" the material from one working width to the adjacent working width to be provided on the large drum. For example, this device can also consist of several rollers, of at least one of which is arranged at an angle to the sieve drum axis is. In this way it is also possible to dry cables and the like and these cables around the sieve drum several times to loop. The cables then have to be lifted off each time they are looped and placed on the sieve drum again. However, it is only possible to wrap the drum several times possible with cables that do not tend to shrink during treatment.

It can be particularly advantageous if, as proposed by the innovation, the cables in tight zigzag gaps placed on the drum over the entire treatment width of the drum. An attempt has already been made to connect the cables in

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To treat zigzag folds on a device with several drums, it turned out, however, that the drums are guided very precisely in their distance from one another and, above all, the distance between the kahfiis + .arkfi σ mn au arxjBnnEH; uariien must. in order to avoid tangling of the cables at the transfer point from one drum to the other. With the large drum, it is not necessary to reposition the folded cables. The cables can be dried out in zigzag folds on a drum.

According to another embodiment it can be provided that the supply and removal of the goods to the sieve drum is arranged below the sieve drum. The supply and discharge of the However, good things can also be done cheaply above the screen drums. Both of these arrangements are particularly advantageous for use of the device according to the invention in a continuous treatment line. With this arrangement In particular, the sieve drum can be wrapped almost completely and thus free of an inner cover be.

If the feed and discharge of the goods is placed below the sieve drum, the feed and discharge of the can according to the innovation Material take place on a common conveyor belt which is arranged tangentially to the sieve drum. Depending on the too material to be treated, it is possible to let the conveyor belt touch the sieve drum directly in order to ensure the transfer of quality To effect conveyor belt on sieve drum and from sieve drum to the conveyor belt.

According to the innovation, a secure handover of the material can also be can be achieved if a three-roller combination is provided between the sieve drum and the conveyor belt, bsi the middle roller a larger diameter than the two lateral guide rollers owns and this middle roller at the same time the sieve

drum and the conveyor belt. The goods brought in by the conveyor belt are then removed from the conveyor belt through this roller released and transferred to the screen drum together with a guide roller. At the same time, what is held on the sieve drum Well detached from the sieve drum at the delivery end of this roller and transferred to the conveyor belt with another guide roller. It is advantageous here to form this roller aXs brush that touches the conveyor belt and the sieve drum.

Because of this innovation according to the training, an inner cover plate for shielding the induced draft at the transfer parts can be omitted, the inside of the drum is also free of the holders of this cover. The free space can can be used advantageously for installing a clamping device. According to the innovation, a clamping device can thus be arranged in the sieve drum and with their clamping elements (needles) through the perforation of the sieve drum shell They protrude and are used for tensioning web materials. The needles can be retracted when tensioning of the material is undesirable. The clamping elements or the needles can be arranged, for example, on ring segments, which in turn are mounted on corresponding levers, are mounted in order to be pivoted into the interior of the drum or to be pressed against the drum shell when tensioning of the material is desired.

Another particularly simple tensioning option results from another embodiment in that the large drums are used with quickly removable clamping elements to remove on both sides Holding railway goods provides. For example, these clamping elements can consist of clamping rings fitted with needles, which can be moved axially on the drum and in each case desired position can be clamped. If.

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Claims (32)

Patent Service Agency A 154 Vaduz / Liechtenstein August 25, 1969 S CH U TZA N SPRÜCHE 1. Device for treatment (drying, steaming, fixing, etc.) of preferably air-permeable goods, in particular textiles in loose, sheet, ribbon, or strand-shaped form, with a closed housing, which is preferably through a partition into a fan room and a treatment room is subdivided, in which at least one sieve drum is arranged if-t, on which the material is only drawn by the suction is held and conveyed and the sieve drum is assigned at least one fan to jär eeugen the induced draft, characterized in that the sieve drum has a larger diameter than 2 meters and largely from the material is entwined. 2. Apparatus according to claim 1, characterized in that the space around the fan wheel is divided into several chambers or return channels is divided and these chambers deliver the treatment medium into a common treatment room. 3. Apparatus according to claim 2, characterized in that in the chambers or in the return channels over their entire free cross-section each a heating device is arranged, which preferably consists of batteries of tilt tubes. 4. Device according to one of the preceding claims, characterized in that that the heating pipes (finned pipes) are U-shaped and are preferably arranged inclined, wherein the two pipe ends for condensate drainage are arranged at the lower end of the radiator. 66044C6 5. Device according to one of the preceding claims, characterized characterized in that the openings for the passage of the treatment medium between the fan space (chambers) and Treatment room are essentially the same size and the same distance from the sieve drum shell. 6. Device according to one of the preceding claims, characterized in that the sieve drum of central bearings which are flanged to the housing waad (frame) or the nozzle star of the partition wall. 7. Device according to one of the preceding claims, characterized in that the sieve drum of radiators with Is surrounded by finned tubes for even air distribution. 8. Device according to one of the preceding claims, characterized in that the sieve drum for better air distribution and guide is surrounded by a screen body, which preferably consists of a number of easily replaceable or adjustable perforated sheets. 9. Device according to one of the preceding claims, characterized characterized in that the sieve drum (large drum) is designed for at least two adjacent working widths is. 10. Device according to one of the preceding claims, characterized in that each of the sieve drum to both Se * th a fan chamber is provided with a fan wheel. 11. Device according to one of the preceding claims, characterized in that the large drum (sieve drum) nnr (viewed in the axial direction) is partly, for example half, air-permeable or perforated (preferably only for one working width). - 3 - 60044Od-- I 4 • »· * > et 12. Device according to one of the preceding claims, characterized by means of a device for transferring the material from one working width to the next Working width of the large drum. 13. The apparatus according to claim 12, characterized in that the device consists of several rollers, of which at least one is arranged obliquely to the sieve drum axis. 14. Device according to one of the preceding claims, characterized in that the supply and discharge of the goods to or from the sieve drum below the sieve drum. 15 · Device according to one of the preceding claims, characterized characterized in that the supply and removal of the goods takes place above the sieve drum. 16. Device according to one of the preceding claims, characterized in that the cable in tight zigzag folds be treated placed over the entire treatment width of the sieve drum. 17. Device according to one of the preceding claims, characterized characterized in that the cables, tapes and the like. Lifted off after a loop and at least once next to them again placed on the sieve drum. 18. Device according to one of the preceding claims, characterized in that the sieve drum with quickly removable Clamping elements is provided for holding rail goods on both sides. 9 t 9
# ♦ * te «· o» k ι 19. The device according to claim 18, characterized in that the clamping elements are made of clamping rings fitted with needles exist. 20. The device according to claim 19, characterized in that preferably on both sides of the large drum Holding elements are provided for holding (carrying) the clamping rings when working without the device Clamping elements. 21. Device according to one of the preceding claims, characterized characterized in that a tensioning device is arranged in the sieve drum, which is preferably retractable Has clamping elements. 22. Device according to one of the preceding claims, characterized in that the sieve drum with a sieve fabric covering is covered. 23. Device in particular according to one of the preceding claims, characterized in that the sieve drum with is covered with a fabric covering. 24. Device according to one of the preceding claims, characterized characterized in that the fabric covering over the screen fabric covering is pulled. 25. Device according to one of claims 2 or 3 »thereby characterized in that a chamber is designed as an ejection channel without a heater and opposite the treatment room is fully or partially closed. 26. The device according to claim 25, characterized in that " the ejection channel is connected to the exhaust duct of the device is. 27. Device according to one of the preceding claims, characterized in that the sieve drum is free of an inner one Coverage is * 28. Device according to one of the preceding claims, characterized characterized in that the supply and discharge of the material a common conveyor belt is provided, which is preferably arranged tangentially to the sieve drum. 29. Device in particular according to claim 28, characterized in that that a three-roller arrangement is provided between the sieve drum and the conveyor belt and the middle one Roller has a larger diameter than the two lateral guide rollers. 30. The device according to claim 29, characterized in that the middle roller is the sieve drum and the conveyor belt touches and is preferably designed as a brush, 31. Device according to one of the preceding claims, characterized in that several large drum units are connected in series and preferably by a common conveyor belt arranged below the drum for feeding and removal of the goods are connected to one another. 32. Device according to one of the preceding claims, characterized in that a large drum unit with units small drums under suction are upstream and / or downstream. 660448