DE6604660U - DEVICE WITH VACUUM SCREEN DRUM - Google Patents

Description

Institution for Fatent Service A 148

Vaduz / Liechtenstein 25.8.69

Device with screen drums under suction

The hiring refers to a device for treating, for example drying, steaming, fixing, washing and the like, of all kinds of goods, preferably textiles, with a suction eye standing, closely juxtaposed sieve drums as indoor sports and on at least one face of this Sieve drums, fan wheels, preferably radial fan wheels.

Devices with screen drums under suction are known, in which the screen drums lie close to one another in order to enable an automatic material transfer from one screen drum to the other. The material to be treated is held on the screen drums by the suction. At the transfer point, a cover is preferably provided in the sieve drums, which cancels the suction at these points and thus enables the material to be released from the sieve drum. For heavy materials and in order to achieve the most intensive treatment effect possible and thus shorten the treatment », very high suction forces are required in the sieve drums. In order to achieve good flow conditions, the fan wheels are arranged as close as possible to the face of the screening drums. High o ^ ugzügo necessitate large valve gates. ^ ⁰ ! ier neVpnnten ■ Plants ^"1 It centered the .Siebtrommeln associated fan wheels is the Ventilatorraddu ^ ohniesser durcf the Siebtrormeldurch'iesser limited. The Ventilatorraddurchmesser can in no way be greater than the screen drum diameter in these embodiments. Sr Tiuß the contrary even sth ^ s smaller than the screen drums be carried out in order to ensure a minimum distance between the individual fan wheels, in-for example baffles for better guidance ^e from the "fan wheels

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expelled air has been provided. These are .Leitbleche ¹ .However not necessary, they can be omitted. When the fan wheels are at a certain distance from one another, the air expelled in opposite directions by the two adjacent fan wheels automatically deflects and flows back into the treatment room, preferably above and below the sieve drum ana dom from the air supply room.

In order to increase treatment performance in particular, it is it is desirable to install the greatest possible fan output. To increase the fan performance, i.e. larger ones To be able to attach fans, it has already been proposed, large fan wheels that extend over the drum diameter protrude, to be arranged alternately on the screen drums. However, this has the disadvantage that a fan chamber must be provided on both sides of the screening drums. Through this On the one hand, the accessibility of the treatment room is made considerably more difficult and, on the other hand, the device is undesirable wide. However, the aim is to have devices that are as small as possible and therefore also as narrow as possible.

To ensure the accessibility of the treatment chamber and only needing a fan chamber, in another known device, the fans that are attached to the Front sides of the sieve drum are arranged in the sieve drum axis direction arranged offset to one another so that the fan housings of the two fans overlap one another can. With this arrangement it is possible to provide fans which are larger than the drum diameter. These Arrangement is suitable for fans blowing on one side, where the individual partial flows of the treatment medium of each fan are completely separated from that of the neighboring fan. Another disadvantage of these devices is that that the Yentilatorraum relatively wide and thus also the device becomes undesirably wide.

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The innovation is based on the ÄUtC rule to increase or enlarge the suction force applicable to each screening drum, without thereby increasing the size of the device. If powerful fans are used, the suction can only be Enlargement of the fans with the most economical use "These fans are increased, since each fan is only in a certain speed range with the most favorable efficiency is working.

The object according to the innovation is achieved with a device of the type described at the outset in a simple manner, that for large induced drafts the fan wheels at least some Screen drums are arranged eccentrically to the associated screen drums. Due to the eccentric arrangement of the fans it is now possible to provide considerably larger fans, i.e. fan wheels, since now for the When using the fans, it is no longer the distance between the two neighboring sieve drum axes that is decisive, but rather the Distance between the two fan axes. But this can be essential be greater than the distance between the sieve drum axes.

For example, when drying and heat setting, an extremely fast suction is only on the first screening drums, d * ii, the on Screen drums located in the inlet are required, while to the shark ■ and for further drying of the already pre-dried or, when thermosetting, that which has already been heated to the fixing temperature Much lower induced drafts are sufficient. This can now be taken into account in a simple manner v / ground that only the screening drums located at the inlet of the device are provided with powerful fan wheels , i.e. that only on these screen drums the fan wheels are arranged eccentrically to the associated screen drums are.

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In general, the material to be treated is on the one The sieve drum is held and guided on the underside and on the other sieve drum on the top. To hold the material Understandably, a larger suction draft is required on the underside of the sieve drum than with the sieve drums, which guide and hold the material at the top. In the case of treatment devices for drying, steaming and fixing hence the sieve drums holding the material on the underside Provided with a stronger suction, i.e. stronger fans than those leading the material on the top Drums. This fact can be taken into account in a simple manner that - in the direction of passage of the Material seen - every second fan is arranged eccentrically to the ckir associated sieve drum, and preferably the fan, der'iden the material at the bottom leading screening drums is assigned.

If the previous sieve drum designs are retained, with their rotating sieve drum bottoms rigidly connected to the sieve drum shell, the suction opening can only be provided centrally, as was customary up to now. In order to be able to arrange the fans eccentrically to the screen drums in this embodiment , it is proposed in an embodiment of the innovation to provide an inclined suction nozzle between the fan and the suction opening of the screen drum. This suction nozzle can generally be relatively short. It does not need to significantly exceed the width of the hitherto customary suction nozzles, which are arranged between the sieve drum and the fan wheel.

Another possibility is the floor at the front of the fan the sieve drum, which is provided with eccentrically arranged radial fan blades, is stationary than the sieve drum casing to form a separate part. The sieve drum shell can be stored on an axle in the usual form

"It can be mounted on ^a fixed floor, preferably by means of roller bearings. In the case of aterials that are permeable to the treatment agent, it is advantageous to use the fixed ^ i eb tr online Ibo- j z ^a r. i? e- " ^a n ^; 3 to be sealed over the sieve drum shell. BeisOielsv.eise <ar.r die? done by a ring seal, which on

i ': trombe lboden is attached. But the ring seal came ■ • ^ n = usnrut also attached to the sieve drum shell, and rotated with the sieve drum. In the case of materials which are impermeable to the treatment agent and which are impermeable to water, it is advantageous to use the. To leave the space between the sieve drum or drum sleeve caused by the storage free, in order to suck off the treatment air from the side. Optionally kön- r.?n also openings even in a known manner in the fixed ehtroT 3 i '-' elboden provided v / ground to at impermeable goods eir better lateral suction of the treatment medium ■ 7)

^ psf.st * »heι Aen Siebtroirmelboden it is now in

Eise pöslich, an eccentric suction opening in the front?, ^o hen, which is preferably assigned directly to the suction port of the fan wheel. In the case of large

A ⁿ or1niin? de? However, the fan wheel can also be <e> _T Nooh ° ir oblique .'ausrstutzen between ^ eschal tet.

peueruifi'sse'nässer training are the sieve -'- 0- " ¹ ^ l" with. ^c yzentr-i srh allocated valve ator wheels on the ■>'. »HibrsPite designed without a bottom and preferably resen- •; .cr- · ο _Γ jpn V ^ ntilatorran-η ν ^ητ ^ treatment room dividing wall u » ..ο ·; ov- + p 1 ₁ :, \: ch ^K i ° rk ^ r.ien dip sieve drums again in be '• qr-ntoiei ^ · °'' ^Γ ^ irp ^ ■ "hse be pelairert or they know directly at aer Be stored in front of the treatment room and the fan room, that is, the bearing points are attached to the V / and in this embodiment.

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In the drawing, some exemplary embodiments of the device according to the innovation are shown. Show it:

Fig. 1 is a longitudinal section through the treatment room of a Device with screen drums under suction,

Fig. 2 pin longitudinal section d'irch the treatment room of another device,

3 shows a cross section through the device according to FIG. 1, FIG. 4 shows a cross section through another device,

5 a bearing point of the sieve drum after the device Fig. 4,

Fig. 6 shows an a _r more storage of the sieve drum in section.

The devices shown have a heat-insulated housing 1, the interior of which is divided by a partition 2 into a ventilator space 3 and a treatment space 4. In the treatment room 4, screen drums 5 R-nt under suction are either arranged in a row (Pig. 1) or the screen drum S are arranged in two rows (Fig. 2), the screen drums of one row being offset from those of the other row. Β * ¹ ! This "" arrangement of the screening drums 5 is the material 7 to be treated in front of a .TientroTimel 5 of the one row "? tvif pass the required sieve drum 5 to the other row and q-if these sieve drums are held and guided by the induced draft. The suction in the sieve drums 5 is produced by 3 fans 6, which are assigned to the front tip of the Fie ^ tromneü o, in the valve ^ torr ^ uir. ,. . ,

It is well known that the fan output increases with the diameter the Vetltllato-iirade-ri lim zero large fan wheels 6 to be able to eat, at least on the ajn, infeed of the

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in the direction of the sieve gate ^ eln. the yentilator wheels are not arranged concentrically to the sieve drums, as was previously the case, but rather eccentrically assigned to the sieve drums., DROUT ° h is. P ^ ITOp ^- I ic ", to provide much larger V ^ rt ^ lator wheels and thereby a much larger: 'a> i ~ pull to the drum drum generator ? 3ere Liiftm ^ np ^ r. jnr ^ h the material can be vacuumed and d ^ s yate ^ ial daduT

An automatic transfer of the material from a sieve drum 5 on the benc-Ehrarte are in the sieve drums Cover plates 8 are provided, which are arranged at least at the transfer points of the material.

The screening drums 5 can in a known V / eise with a central Suction opening 9 ("^ ig ^) be provided. In this Formation of the sieve drum 5 is then between the sieve drums and an inclined suction nozzle 10 is provided for each of the fans 6, which are arranged eccentrically thereto.

Another modern training is in PiF. 4 shown. Here the suction opening 9 is arranged eccentrically to the sieve drum. This is only possible if either a fixed tropic floor 11 is provided or the drum 5 is mounted on this spite directly on the partition 2. The storage of the test drum 5 directly on the partition 2 is shown in FIG. 5;

3 for the execution after Fir. ^K , a ring 12 protruding from the drum is attached to the partition 2. -Bsi the embodiment according to Fig. 6, this ring 12 is attached to the stationary drum base. On this ring are söfs uüiiWiff ta # Hrere R ^ l =

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Lenlager 13 arranged on which the drum 5 runs up and rolls off. ZRR good .- '· bdir> ^μ .tuns' between screen drum 5 and ring 12 qn the preferably to the ketal I eeferti? Th ring 12 is an elastic Dichtriru- M. befest ^ rt.

^ ie screening drums 5 and di <= Venti latorräder 6 are else in known '' with a feeisi ^c t? n Drive 1 ^c> connected.

In the embodiments according to FIGS. 4, 5 and 6, a suction nozzle between the sieve drum 5 and the fan wheel 6 is not required. "In these designs, the suction port 16 of the fan wheel 6 can be assigned directly to the suction opening 9.

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Claims (10)

Institution for? Ater.tdi ° nst A 148 V g. du ζ /! Liechtenstein 26.8.69 RÜ ^ ZANSFPÜCHE . Device for treating, in the case of drying, steaming, fixing,><as before η and the like, of goods of all kinds, preferably textiles, with suction drums placed close together as transport elements and on at least one end face of these drums ° btronnnel arranged fan wheels, preferably centrifugal fan wheels, characterized in that for high suction fans, the fan wheels least ^Iniger% Si ^ ° tronuneln are arranged eccentrically to the associated screen drums, 2. Apparatus according to claim 1, characterized in that the fan blades of the a.m inlet of the device? ge-Ipeenen Screen drum eccentric to the associated screen drums are arranged. 3. Apparatus according to claim 1, characterized in that in You ^ oh direction of this material it Fesehen - leather second Fan arranged eccentrically to zu ^ eh ^ rJp ° n oiebtrommei is. 4. Device according to one of the preceding claims, characterized in that the sieve drums on the ventilator end face Provide with a central suction opening are 'md between the fan and the opening of the Mebtrom meln a "slanted ^ suction letter, provided list .. 5. Device according to one of the preceding claims, characterized in that the bottom ar of the V * = fan face, the screen drums provided with eccentrically arranged fan wheels, is designed as a fixed ^{part separate from 1} screen drum shell. 6. Apparatus according to claim 5, characterized in that the Si eh + ^ OFiineTmantel en the fan side is mounted on the fixed sieve drum base. j 7. Device according to one of claims 5 or 6, characterized characterized in that the stationary sieve drum clearing is sealed against the sieve drum shell. 8. Device according to one of the claims 5 to 7, characterized in that that the fixed sieve drum base is provided with an eccentric suction opening, which is preferably is assigned directly to the suction nozzle of the fan wheel. 9. Device according to one of the preceding claims, characterized in that the screen drums are associated with eccentrically Fan wheels are formed on the fan side without a bottom and preferably above the fan space v ^ m wall separating the treatment room sealed are. 10. Device according to claim 9, characterized in that cup "drum with eccentrically assigned centrifugal fan wheels are stored on the wall between the treatment room and the ilator room. eat