SE200166C1

SE200166C1 -

Info

Publication number: SE200166C1
Authority: SE
Publication date: 1965-01-01

Description

Uppfinnare: A E Armstrong Foreliggande uppfinning avser en avtappningsanordning for anguppyarmda torkcylindrar. Inventor: A E Armstrong The present invention relates to a tapping device for anguppy-armed drying cylinders.

Huvudandamalen med uppfinningen aro: for det forsta att astadkomma en anordning for att aytappa eller avlagsna kondensat frail anguppvarmda torkcylindrar eller -trummor, vilken anordning är effektiv vid olika rotationshastigheter for cylindern eller trumman; for det andra att astadkomma en anordning fOr att avtappa eller avlagsna kondensat frail anguppvarmda torkcylindrar, innefattande ett hayertror och en skopa, som är forenad med rOret pa ett sadant salt, att uttomning av vat-ten sker under en betydande del av cylinderns rotation; for det tredje att astadkomma en anordning av den typ, som är mycket enkel till sin konstruktion och som arbetar effektivt inom ett stort omrade; for det fjarde att astadkomma en avtappningsanordning av ha.verttyp, som är lumped att anyandas i torkcylindrar eller -trummor for torkning ay exempelvis pappersbanor. The main object of the invention is: firstly to provide a device for draining or removing condensate from heated heating cylinders or drums, which device is effective at different rotational speeds of the cylinder or drum; secondly, to provide a device for draining or depositing condensate from heated heating cylinders, comprising a hay dryer and a bucket, which is combined with the tube on such a salt, that dehydration of the water takes place during a significant part of the rotation of the cylinder; thirdly, to provide a device of the type which is very simple in its construction and which operates efficiently over a large area; fourth, to provide a ha-type type tapping device which is lumped to be used in drying cylinders or drums for drying in, for example, paper webs.

Andra andamal hanforande sig till detaljer framga av den efterfoljande beskriyningen. Uppfinningen definieras och angives i anspraken. Fig. 1 visar en del-yy, delvis med vissa delar avlagsnade, delvis i sektion, tagen efter linjen 1--1 i fig. 2, av en torkcylinder eller -trumma enligt uppfinningen. Fig. 2 visar en delvy, delvis i sektion, tagen efter linjen 2-2 i fig. 1. Fig. 3 visar en modifierad utforingsform ay uppfinningen. Other details refer to the details of the following description. The invention is defined and stated in the claims. Fig. 1 shows a part-yy, partly with certain parts removed, partly in section, taken along the line 1--1 in Fig. 2, of a drying cylinder or drum according to the invention. Fig. 2 shows a partial view, partly in section, taken along the line 2-2 in Fig. 1. Fig. 3 shows a modified embodiment of the invention.

Uppfinningen hanfor sig till den typ av anordningar for avlagsnande ay kondensat Fran torkcylindrar eller -trummor, som allmant be tecknas som en havert. Emellertid Or funktionen for anordningen enligt uppfinningen icke av ren haverttyp, ehuru tryckskillnader uppkomma harvid. The invention relates to the type of condensate removal devices of drying cylinders or drums, generally referred to as an oat. However, the function of the device according to the invention is not of the pure oat type, although pressure differences do occur.

Torktrummor eller -cylindrar arbeta med olika periferihastigheter Mom ett omrade mellan 51 mlmin och 457 mlmin. Denna variation av hastigheten resulterar i en stor variation av kondensvattnets placering i tram-man. Vid vissa anordningar av haverttyp, vilka havertroret är stationart i forhallande till trumman, kan kondensatet avlagsnas yid laga hastigheter, men da periferihastigheten uppnar en storlek ay 183 m/min minskar uttaget av kondensat pa grund av att vattnet fores upp pa cylinderns vagg och en betydande vattenmangd maste samlas innan nagot vatten kvarstannar pA trummans botten, sa. att havertrOret kan avlagsna detsamma. Detta nedskar cylinderns eller trummans torkningskapacitet och den kraft, som fordras f6r att drive trumman, okar. Dryers or cylinders work at different peripheral speeds Mom a range between 51 mlmin and 457 mlmin. This variation in speed results in a large variation in the location of the condensed water in the tram. In some oat-type devices, in which the oat tube is stationary in relation to the drum, the condensate can be deposited at normal speeds, but as the peripheral velocity reaches a size of 183 m / min the condensate extraction decreases due to the water being carried up the cylinder wall and a significant The amount of water must be collected before any water remains on the bottom of the drum, he said. that the oatmeal can repel the same. This reduces the drying capacity of the cylinder or drum and increases the force required to drive the drum.

Vid roterande typer av hayertar kan mycket begransade mangder ay vatten avlagsnas vid la.ga hastigheter pa grund av att haver-tens inlopp är nedsankt i vattnet, som samlas yid bottnen, endast under en mycket begransad del ay varje vary for trumman. Deane roterande typ Or effektiv inorn hastighetsgranser vid eller Over 305 m/min, dar vattnet befinner sig runt hela cylindern. I detta fall nedskares emellertid effekten pa grand av att ett betydande yattenskikt erfordras innan det kan uppsugas. Forut kanda anordningar avervinna vissa ay dessa fOrhallanden, men foreliggande uppfinning anger en betydande 2— — forbattring av dessa for att effektivt avlagsna kondensatet. In rotary types of hayertar, very limited amounts of water can be deposited at low speeds because the inlet of the oatmeal is submerged in the water, which collects at the bottom, only under a very limited part of each vary for the drum. Deane rotary type Or effective within speed limits at or Over 305 m / min, where the water is around the entire cylinder. In this case, however, the effect is reduced to the extent that a significant surface layer is required before it can be absorbed. Prior art devices can overcome some of these conditions, but the present invention provides a significant improvement over these in order to effectively remove the condensate.

Pa bifogade ritningar beteckna 1 torkcylindern eller -trumman i en maskin for torkning av pappersbanor eller liknande. Det ar -uppenbart, att dessa cylindrar eller trummor kunna variera betydligt till sin konstruktion, men figurerna visa den oriskade relationen mellan delarna. Trumman är roterbart uppburen och drives ay en rem 2 samt är forsedd med en anginloppsforbindning 3. Havertroret 4 bestitr ay en horisontell del 5, som är heldgen axiellt i trumman, och en del 6, som ár belagen radiellt i densamma, vilka delar dro forenade medelst en koppling 7, som är av T-typ och bar roret eller stangen 8, som är belagen i motsatt riktning i forhallande till den radiella inloppsdelen 6 och är forsedd med en motvikt 9. In the accompanying drawings, 1 denotes the drying cylinder or drum of a machine for drying paper webs or the like. It is obvious that these cylinders or drums can vary considerably in their construction, but the figures show the risky relationship between the parts. The drum is rotatably supported and driven by a belt 2 and is provided with an angular inlet connection 3. The oat tube 4 consists of a horizontal part 5, which is completely axially in the drum, and a part 6, which is coated radially in the same, which parts are joined together. by means of a coupling 7, which is of the T-type and carried the tube or rod 8, which is coated in the opposite direction in relation to the radial inlet part 6 and is provided with a counterweight 9.

Skopan, som beteclmas med 10, har en betydande bredd och vander framsidan mot cylinderns rotationsriktning, som är medurs, i fig. 2. Skopan bestar av bakat avsmalnande sidovaggar 11 och en bakat lutande oyre vagg 12, vars bakre kant 13 är belagen nara intill cylinderns inre yta, varigenom en langstrackt, slitsliknande uttomningsoppning 14 bildas, som leder till det langstrackta huvudet 15 pa havertroret. Detta langstrackta huvud bildar en uttomningskammare for skopan och har I huyndsak samrna langd som skopans bredd. Den del av cylinderns inre yta, som inneslutits av vaggarna 10 och 11, bildar bottnen eller den yttre vaggen for skopan. The bucket, which is denoted by 10, has a considerable width and winds the front side in the direction of rotation of the cylinder, which is clockwise, in Fig. 2. The bucket consists of baked tapered side cradles 11 and a baked inclined outer cradle 12, the rear edge 13 of which is coated close to the inner surface of the cylinder, thereby forming an elongate, slit-like discharge opening 14, which leads to the elongate head 15 of the oat tube. This elongate head forms an emptying chamber for the bucket and has essentially the same length as the width of the bucket. The part of the inner surface of the cylinder, which is enclosed by the cradles 10 and 11, forms the bottom or the outer cradle of the bucket.

Skopan är fast pa cylinderns inre yta me-deist hallare 16 och den bakat utskjutande flansen 17 av kammarens 15 bakre vagg 18. Rorhuvudets eller ullOmningskammarens 15 owe vagg 19 har ett kopplingselement 20, som är belaget centralt darpa och som teleskopiskt upptager havertrorets inloppsdel 6. En packning 21 är anordnad i packningsboxen 22, som dr gangad ph kopplingselementet 20. The bucket is fixed to the inner surface of the cylinder by the holder 16 and the rearwardly projecting flange 17 of the rear cradle 18 of the chamber 15. The owe cradle 19 of the rudder head or wool chamber 15 has a coupling element 20 which is coated centrally and which telescopically receives the inlet part 6 of the oatmeal. A gasket 21 is arranged in the gasket box 22, which is connected to the coupling element 20.

Dã cylindern roterar, upptages vatten av skopan, sasom angives vid 23. Da cylindern roterar med en relativt lag hastighet upptages en betydande mangd vatten av skopan, som uttommes under approxiMativt ett halvt vary for cylindern. Skopans kapacitet fix skTan, att betydande vattenmangder kan upptagas vid varje rotation och effektivt uttOmmas genom den slitsliknande oppningen 11, dvs. havertverkan kan fortsatta under huvuddeleri ay skopans uppatslag, vilket kraftigt okar kapaciteten och effektiviteten hos anordningen. Mycket goda resultat ha uppnatts, da kanten 13 pa den oyre vaggen är belagen pa. 1,6 mm avstand frau cylinderns inre yta. As the cylinder rotates, water is taken up by the bucket, as indicated at 23. As the cylinder rotates at a relatively low speed, a significant amount of water is taken up by the bucket, which is depleted during approximately one-half vary for the cylinder. The capacity of the bucket fixes the fact that significant amounts of water can be absorbed at each rotation and effectively emptied through the slot-like opening 11, i.e. The action of the sea can continue during the main part of the bucket's impact stroke, which greatly increases the capacity and efficiency of the device. Very good results have been obtained, as the edge 13 of the outer wall is coated on. 1.6 mm distance from the inner surface of the cylinder.

I den i fig. 3 visade modifikationen är en sparliknande sump 24 utformad i cylindervaggen i langdriktningen ay och under den ovre vaggens 12 bakre kant. Den bakre kanten av den ovre vaggen är emellertid sa belagen i forhallande till sumpen, att ett begransat, slitsliknande utrymme 25 bildas for uttomning ay skopans innehall till havertrorets huvud eller skopans uttomningskammare 15. In the modification shown in Fig. 3, a spar-like sump 24 is formed in the cylinder cradle in the longitudinal direction ay and below the rear edge of the upper cradle 12. However, the trailing edge of the upper cradle is so coated in relation to the sump that a limited, slot-like space 25 is formed for emptying the contents of the bucket to the head of the oat rudder or the emptying chamber 15 of the bucket.

Claims

Patent claim:

A rotatable drying cylinder provided with a device for supplying steam, and with a device for diverting ay condensate, which condensate diverting device comprises a siphon tube (4) rotatable together with the cylinder and a bucket (10), which has a forward opening in the direction of rotation of the cylinder and is placed on the inside of the cylinder, which forms the bottom of the bucket, and which bucket, in addition to side cradles (11), has a freely named opening sloping behind the cradle (12), the rear edge of which is coated next to the inside of the cylinder to define a condensate permeable gap ( 14) to a drain chamber (15), to which the siphon tube (4) is connected and which extends Mugs with the rear edge of the bucket, the chamber being delimited by a rear cradle and in front of the upper side of the rear edge portion of the upper cradle of the bucket, jug drawn daray , that the inside of the cylinder apart from a local area next to the bucket (10) is without hindrance to the distribution of the condensate by gravity or the centrifugal force from one end of the cylinder to the other and that the capacity of the bucket (10) is substantially greater than the capacity of the permeation gap (14), that condensate collected by the bucket can flow into the chamber through the gap below one. significant part of a rotational revolution for the cylinder during the upward movement of the bucket.

Drying cylinder according to claim 1, characterized in that the chamber (15) has an outer cradle (19), which is coated on a stand and extends over the rear part of the upper cradle (12) of the bucket (10).

Drying cylinder according to claim 1 or 2, characterized in that a longitudinal recess is provided in the cylinder cradle Or, which forms a sump (24) in line with the rear edge (13) of the bucket cradle (12) of the bucket (10).

Drying cylinder according to claim 1, characterized in that the siphon tube has a radially coated inlet part (6) and an elongate head (15), which forms said chamber and to which the bucket Or is connected.

Drying cylinder according to claim 4, characterized in that the clearance gap (14) has a width of about 1.6 mm.

A drying cylinder according to any one of the preceding patent claims, characterized in that the elongate and chamber-shaped drain head (15) has the same length as the gap (14) and that the siphon tube (6) is centrally connected to this head. - —3

Drying cylinder according to claim 4, characterized in that the radially bellied part (6) of the siphon tube has a telecopic engagement with a nipple (20), which is bellows centrally and radially on the upper wall (19) of the chamber (15) and is provided with a fitted gland (22) with a gasket (21) for the siphon tube. Request publications: Patents from Sweden 145,048, USA 2,297,094, 2,521,371.