SE183632C1

SE183632C1 -

Info

Publication number: SE183632C1
Authority: SE
Publication date: 1963-01-01

Description

Uppfinnare: E Ikavalko Prioritet begard (Mn den 25 januari 1954 (Finland) Foreliggande uppfinning avser en sluten inloppslada for pappersmaskiner och liknande, vilken inloppslada är forsedd med en i dess undre del anordnad utstrOmningsoppning for utmatning av massa pa viran, en tryckluftregleringsanordning for att liâlla massan under konstant tryck, samt atminstone en reglerbar, av en mellanvagg bildad overstromningsavdelning for uppehallande av massans niva, vilken massa kontinuerligt strommar in i inloppsladan. Inventor: E Ikavalko Priority Required (Mn January 25, 1954 (Finland) The present invention relates to a closed inlet tray for paper machines and the like, which inlet tray is provided with an outflow opening for discharging pulp on the wire, a compressed air control device for delivering the mass under constant pressure, and at least one adjustable overflow compartment formed by a partition wall for maintaining the level of the mass, which mass continuously flows into the inlet barn.

Inloppslador av riarrint slag besitta den nackdelen, att oregelbundenheter i massans utstromning pa viran uppsta. Inlet drains of the linear type have the disadvantage that irregularities in the outflow of the mass on the wire arise.

FOreliggande uppfinning avser att eliminera namnda olagenhet, vilket sker darigenom, att Overstromningsavdelningen b.r forsedd med en anordning, exempelvis en hot-tor, far astadkommande av konstant niva hos massan i densamma, vilken niva Mlles 16gre an massans niva i inloppsladans ovriga del och varvid averstrOmningsavdelningens Inassayta fir mindre an massaytan i inloppsladans ovriga del. The present invention is intended to eliminate said malfunction, which is done by the overflow compartment being provided with a device, for example a hotter, causing a constant level of the mass in the same, which level is 16 times the level of the mass in the other part of the inlet tray and whereby the overflow compartment Inassayta fir smaller an massaytan i inloppsladans ovriga del.

En utforingsform av uppfinningen skall nfirmare beskrivas och askadliggoras med tillhjãlp av bifogade ritning, som schematiskt visar ett lodratt snitt genom en inloppslada enligt uppfinningen. An embodiment of the invention will be further described and ash-assisted with the aid of the accompanying drawing, which schematically shows a vertical section through an inlet barn according to the invention.

A ritningen betecknas med 1 en inloppslada for massa, i vilken lada anordnats en mellanvagg 10, 11 .for astadkommande av en overstrOmning av massa Over ett rOrs 14a Owe parti 12 till ett rum 13, som av mellanvaggen avskilj es fran ladan. In the drawing, 1 denotes an inlet barn for pulp, in which barn an intermediate wall 10, 11 is arranged to cause a flood of pulp over a portion 14a of the pipe 12 to a space 13, which is separated from the barn by the intermediate wall.

For inmatning air massa finnes i anordningen en inmatningslada 2 av I och for sig kand konstruktion, till vilken lada en matningspump kontinuerligt pumpar utspadd massa av passande konsistens och fran vilken denna sedan genem en inloppsoppning 3 och via en halvals 4 R.trommar in i inloppsladan. For feeding air mass there is in the device a feed barn 2 of per se known construction, to which barn a feed pump continuously pumps diluted mass of suitable consistency and from which this then through an inlet opening 3 and via a half-roll 4 R. drums into the inlet barn .

Matningspumpen ar harvid anordnad att fungera salunda, att massa fran inloppsladan kontinuerligt strOmmar Over rorpartiet 12 till rummet 13. The feed pump is hereby arranged to function in such a way that mass from the inlet barn continuously flows over the pipe section 12 to the space 13.

Fran rummet 13 ledes massa genom ett avloppsrOr 16 tillbaka i kretslopp. For att massanivan i delta ruin 13 skall kunna hallas pa konstant niva, liar i detta anordnats en flottor 14, som omslutes av roret 14a, vilken flottOr 14 medelst en regleringsanordning 15 reglerar en i avloppsrOret 16 befintlig ventils 17 funktion och salunda massans utlopp fran rummet 13. From the room 13, pulp is led through a drain pipe 16 back into circulation. In order that the mass level in delta ruin 13 can be kept at a constant level, a raft 14 is arranged therein, which is enclosed by the pipe 14a, which raft 14 by means of a regulating device 15 regulates a function 17 of the valve 17 present in the drain pipe and thus the mass outlet from the room 13.

For matning av massan till maskinens vira 9 ãr inloppsladan f6rsedd med en mot virans bredd svarande utloppsoppning 5, vid mars mynning anordnats en halvals 6, medelst vilken den utstrommande massans strOmning kan regleras och stromningens riktning for-Andras medelst lappar 7 och 7a. For feeding the pulp to the machine's wire 9, the inlet barn is provided with an outlet opening 5 corresponding to the width of the wire, at the mouth of March a half roller 6 is arranged, by means of which the flow of the outflowing mass can be regulated and the direction of flow by means 7 and 7a.

For att massan i inloppsladan skall forbli homogen, liar i denna anordnats lampliga organ, t. ex. halvalsar 8, son" samtidigt reglera massans strOmning i inloppsladan. In order for the mass in the inlet barn to remain homogeneous, suitable means have been arranged in it, e.g. half-rollers 8, son "at the same time regulate the flow of the mass in the inlet barn.

FOr reglering ay trycket 1 luftrummet Over massanivau i inloppsladan har i densamma anordnats en tryckregleringsanordning 1819, medelst vilken ett konstant tryck uppratthalles i namnda luftrum. For control of the pressure in the air space Above mass level in the inlet barn, a pressure control device 1819 has been arranged therein, by means of which a constant pressure is maintained in said air space.

I del langsmala rummet 13, vars massayta fir mycket liten i forhallande till massaytan 20 i inloppsladan, Wanes massanivan konstant medelst en flottorreglerad ventil. Sma hojdvariationer i ifragavarande rum 13 kunna pa grand av den lilla ytan praktiskt taget icke inverka storande pa del konstanta tryck, som medelst regleringsanordningarna uppratthalles i inloppsladan i luftrummet Over massanivan. In the part of the longitudinal narrow space 13, whose mass surface is very small in relation to the mass surface 20 in the inlet barn, Wane's mass level is constantly by means of a float-regulated valve. Small height variations in the room 13 in question can, on the surface of the small area, practically not have a disturbing effect on some of the constant pressures which are maintained by means of the regulating devices in the inlet barn in the air space above the mass level.

Nar salunda massaytan 20 kontinuerligt halles pa samma niva och i luftrummet darOver uppratthalles ett konstant tryck, utstrommar massan aven alltid under konstant tryck pa viran, varvid salunda det viran pa, forda massaskiktet med avseende a kvadratmetervikten joke varierar. 2— — Uppfinningen ma icke anses begransad till "ovan heskrivna, och a ritningen askadliggjorda utforingsform, utan kau varieras inom.• rainen for efterfoljande patentansprak. Sâ exempelvis kan inloppsladan 1 forses med her an en overstramningsavdelning. When the pulp surface 20 is continuously kept at the same level and a constant pressure is maintained in the air space above it, the pulp also always flows out under constant pressure on the wire, thus the wire on the front mass layer with respect to the square meter weight joke varies. The invention may not be considered limited to the embodiment described above, and illustrated in the drawing, but may be varied within the scope of the following patent claims. Thus, for example, the inlet tray 1 may be provided with an overflow compartment here.

Claims

Claim claim: Closed inlet tray for paper machines and the like, which inlet tray is provided with an outflow opening arranged in its lower part for discharging pulp via, a compressed air regulating device for pouring the pulp under constant pressure, and at least one adjustable, of a middle wall built-up overflow compartment for maintaining the level of the pulp, which pulp flows continuously into the inlet barn, characterized in that the overflow compartment (13) is provided with a device, for example a float (14), which provides a constant level of the pulp. in the same, level Mlles bearings of the mass surface of the mass surface (20) in the other part of the inlet tray (1) and wherein the mass surface of the overflow compartment (13) is smaller than the mass surface (20) of the other part of the inlet tray (1). Request publications: Patents from Sweden 133 228; Germany 254 873. Stockhdm 1963. Kungl. Boktr. P. A. Norstedt &Saner; 610089