SE190847C1

SE190847C1 -

Info

Publication number: SE190847C1
Authority: SE
Publication date: 1964-01-01

Description

KLASS INTERNATIONELLSVENSK D 21 h55 f:11/01 PATENT- OCH REGISTRERINGSVERKET Ans. 7806/1956 inkom den 24/8 1956 utlagd den 20/11 1961 J T POPELIER, HAAG, NEDERLANDERNA Satt att impregnera en pappersbana For impregnering av papper har man foreslagit att leda pappersbanan genom torkdelen hos en pappersmaskin mellan tvã valsar, varvid vatska tillfores vid intradet av pappersbanan mellan valsarna. De hittills kanda metoderna av detta slag innebara emellertid den olagenheten, att en likformig impregnering icke kan ernas pa bada sidorna av pappersbanan. CLASS INTERNATIONAL SWEDISH D 21 h55 f: 11/01 PATENT AND REGISTRATION AGENCY Ans. 7806/1956 was received on 24/8 1956 issued on 20/11 1961 JT POPELIER, THE HAGUE, THE NETHERLANDS Set to impregnate a paper web For impregnation of paper, it has been proposed to guide the paper web through the drying part of a paper machine between two rollers, the liquid being fed at of the paper web between the rollers. The hitherto known methods of this kind, however, entailed the disadvantage that a uniform impregnation could not be obtained on both sides of the paper web.

FOreliggande uppfinning avser ett satt att undanroj a denna olagenhet enligt foreliggande patentansprak. The present invention relates to a method of eliminating this illegality according to the present patent claim.

Uppfinningen skall i det f8ljande narmare belysas under hanvisning till a bifogade ritning visade utforingsexempel for en anordning for utovandet av sattet enligt foreliggande uppfinning. The invention will be further elucidated in the following with reference to the exemplary embodiment shown in the accompanying drawing of a device for carrying out the set according to the present invention.

Med 1, 2 och 3 betecknas torkvalsar, p5. vilka pappersbanan 4 ledes. Efter att hava lam-Eat torkvalsen 3 ledes pappersbanan 4 neat ph en vals 5 mellan ett par valsar 6, 7, varvid valsens 7 lager ãr forskjutbart i horisontell riktning och star under ett reglerbart hydrauliskt tryck. 1, 2 and 3 denote drying rollers, p5. which the paper web 4 is led. After having the lam-Eat drying roller 3, the paper web 4 is guided neatly by a roller 5 between a pair of rollers 6, 7, the bearings of the roller 7 being displaceable in the horizontal direction and standing under an adjustable hydraulic pressure.

Det vid intradessidan mellan valsarna 6, 7 bildade rummet begransas i sidled av tva sidoflansar 9, som ligga an mot valsarnas frontytor och tata mot dessa. Impregneringsvatskan tillfores genom tvh. bestrilningsror 10 pa valsarna 6, 7 och anhopas i rummet 8 mellan valsarna, sá att vatskan dari star under inflytande av en nivaregleringsanordning, som reglerar vatskehiij den till en bestamd niva. Efter att hava lamnat valsarna 6, 7 ledes pappersbanan medelst nagra styrrullar 11, 12 till efterf8ljande avdelning av torkdelen. The space formed at the inlet side between the rollers 6, 7 is delimited laterally by two side flanges 9, which abut against the front surfaces of the rollers and tate against them. The impregnation liquid is supplied by tvh. irradiation tubes 10 on the rollers 6, 7 and accumulate in the space 8 between the rollers, so that the liquid therein is under the influence of a level control device, which regulates the water flow to a certain level. After leaving the rollers 6, 7, the paper web is guided by means of some guide rollers 11, 12 to the following section of the drying part.

Genom att valsarna 6, 7 med ett forhallandevis kraftigt tryck tryckas mot pappersbanan, pressas impregneringsvatskan in i papperet och en likformig impregnering ernas pa hada sidorna av pappersbanan. By pressing the rollers 6, 7 with a relatively strong pressure against the paper web, the impregnation liquid is pressed into the paper and a uniform impregnation of the rollers on both sides of the paper web.

Den visade anordningen, vid vilken pappersbanan lamnar valsarna 6, 7 i vertikal riktning, innebar vidare den fOrdelen, att en Dupl. kl. 55 f: 15/ storre stracka star till forfogande fOr torkningen. Likaledes star darvid utrymme till .forfogande for anordnande av en torkanlaggning, i vilken pappersbanan torkas, innan den nar fram till styrvalsarna 11, 12. Dessutom tages i torkdelen mindre utrymme i anspra an vid tidigare kanda anordningar, vid vilka pappersbanan ledes i horisontell riktning genom impregneringsanordningen. The device shown, in which the paper web leaves the rollers 6, 7 in the vertical direction, further entailed the advantage that a Dupl. at 55 f: 15 / greater distance is available for drying. There is also space available for arranging a drying plant in which the paper web is dried before it reaches the guide rollers 11, 12. In addition, less space is taken up in the drying part than in prior art devices in which the paper web is guided in a horizontal direction through the impregnation device.

Claims

Patent claim 5. k: Solt to impregnate the paper web in a drying section of a paper machine with liquid, the paper web being guided between two horizontally adjacent rollers arranged in opposite directions and the liquid being fed to the web at its inlet between the rollers, displaceable in the horizontal direction and loaded by a pressure acting in the direction of the second roll, characterized in that the paper web is guided vertically down into a water bath formed between the rollers and two stationary side flanges, which abut the rollers' face surfaces, in which a liquid mirror is maintained, so that the liquid depends on the hot sides of the paper web, and that the paper web is then vertically guided hart frail the rollers. Request publications: Patents from Sweden 108473, 125508; France 37 866; Germany 334 241; USA 2,562,457. Other publications: Paper trade journal 1958, July 28, P. 4653. (Barker, E F, Horizontal size press installations show versatility, many advantages).