KR850008199A - Web Forming and Dewatering Device of Paper Machine and its Method - Google Patents

Abstract

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Description

Web Forming and Dewatering Device of Paper Machine and its Method

As this is a public information case, the full text was not included.

1 is an axial view schematically showing a form of the designed paper machine and a form which operates in accordance with the principles of the present invention;

2 is a partial axial view of a portion of FIG. 1 showing the main form of the invention,

FIG. 3 is an axial view diagrammatically showing a double wire paper machine which provides another form of the structure shown in FIG. 1 and which is operated and designed according to the principles of the present invention.

* Explanation of symbols for the main parts of the drawings.

10,40: upper wire, 11,41: lower wire, 13,43: slice, 14,45: sho, 23,57: blade, 34: suction feed box, 37: rotary roll, 52: deflector, 60 ： Collection chamber

Claims (25)

A paper machine web forming and dewatering unit comprising: first and second curved continuous forming wires; Means for guiding said wire through forming and dewatering passages beginning with a converging throat to accept raw material; A large radius open shoe over the deflected second wire to form the throat; An introduction roll having the first wire surrounding the wire under stress and the second wire of the intercylinder to dewater the raw material through the two wires on the shoe and directing the first wire into the inlet to the throat; An automatic slice in close working relationship with the first wire after the shoe to receive excess liquid in through the first wire; A central roll having a wire of the shoe and an enclosing wire bent in the direction of the support, the center roll disposed after the shoe; A saving device following the forming roll for collecting the liquid drawn out from the first wire by the central roll; Paper making and dewatering device, characterized in that consisting of a suction transfer box against the second wire next to the economizer to use the web up to the second wire. The apparatus for forming and dehydrating a paper machine according to claim 1, further comprising suction means connected to the automatic slice so that the liquid collected by the automatic slice is forcibly pulled out. 2. The web forming and dewatering device of a paper machine according to claim 1, wherein said central roll is a smooth solid cylindrical roll. The web shaping and dewatering device of claim 1, wherein the suction transfer box is curved and surrounded by two wires. The web forming and dewatering device of a paper machine as claimed in claim 1, comprising means for positioning the introduction roll relative to the second wire to change the curvature of the throat. The web forming and dewatering device of a paper machine according to claim 1, wherein the introduction roll is a cylindrical roll having no solid hole. 2. The web forming and dewatering device of a paper machine as claimed in claim 1, wherein the shoe is placed in front of a flat open suction plate in close working relationship with the second wire to initially remove the liquid through the second wire. 2. The web forming and dewatering apparatus of claim 1, wherein the shoe has a plurality of cross machine blades that cause vibration of the raw material between wires to promote removal of liquid from the raw material. 2. The web forming and dewatering device of a paper machine as claimed in claim 1, wherein said economizer has a vacuum mist outlet for pumping mist from a region following the central roll. The web forming and dewatering device of claim 1, wherein the automatic slice has a wide lip in contact with the first wire after the shoe. The web shaping and dewatering device of claim 1, wherein the position of the automatic slice is adjustable relative to the surface of the first wire. In papermaking web forming and dewatering, first and second curved continuous forming wires; Means for directing the wire through forming and dewatering passages beginning with the forming throat converging to receive the raw material second wire guided to form the throat with the first wire surrounding the shoe on the second wire Large radius Shu of the stomach; Means for facing said wire under stress; Means for collecting excess liquid through the first wire while surrounding the shoe; A central roll disposed after the shoe with wires bent in a direction opposite to the shoe; Consisting of a means for collecting the fluid drawn out through the first wire by being enclosed above the central roller in an upside down encirclement of the second passage and enclosing the wire over the chute of the first large radius arch passage. Web Forming and Dewatering Equipment of Paper Machines. 13. The papermaking web forming and dewatering device of claim 12, comprising a suction plate disposed in front of the shoe engaging the second wire to withdraw the initial liquid through the second wire. 13. The web forming and dewatering device of a paper machine according to claim 12, wherein the wire has a plurality of crossmachine blades which surround the shoe and cause the shoe to vibrate the raw material carried between the wires. 13. The papermaking web forming and dewatering apparatus according to claim 12, wherein the means for simultaneously adjusting the position of the central roll relative to the first wire to change the angle enclosed by the wire. 16. The papermaking web forming and dewatering device according to claim 15, comprising means for simultaneously adjusting the position of the liquid collecting means. A papermaking web forming and dewatering device comprising: first and second curved continuous forming wires; Means for directing the wire through a forming and dewatering passage starting from a forming throat converging to receive the raw material; A large radius open shoe on the second wire annealed to form the throat; Means for directing a first wire into the inlet through the throat having the first wire enclosed by the second wire of the shoe and the wire under stress to dewater through the two wires of the shoe; Means for collecting the liquid from the excess first wire through the first wire traveling through the shoe; A central roller disposed next to the shoe with wires bent and wrapped in the opposite direction to the shoe; A roll surrounded by a wire disposed next to the center roll with a wire surrounding the roll surrounding the wire in a direction opposite the center roll; A web forming and dewatering device for a paper machine comprising: a means for collecting liquid from a first wire after being enclosed in a wire and centered. 18. The apparatus of claim 17, wherein the central roll is an open roll. 19. The apparatus of claim 18, wherein the open roll has fine wires enclosed thereon so that the body is shown with respect to the first wire. 18. The web forming of a paper machine as claimed in claim 17, comprising a foil following the central roll in close operation in contact with the second wire to prevent irregular vibration of the wire between the central roll and the roll surrounded by the wire. Dewatering device. 18. A transfer box as claimed in claim 17, comprising a transfer box having two wires surrounding the suction box and a curved large radius second wire for transferring the web to a second wire following the wire surrounding the roll. Web Forming and Dewatering Equipment of Paper Machines. 22. The web forming and dewatering device of a paper machine according to claim 21, comprising wires annealed through a third injection portion opposite to the second injection portion of the curve to dewater through the first wire. 18. The web forming and dewatering device of a paper machine according to claim 17, characterized in that it has an automatic slice blade in close operation with the first wire following the shoe and a means for adjusting the position of the automatic slice blade relative to the first wire. CLAIMS 1. A method of forming and dewatering a web between a pair of curved continuous forming wires, the method comprising: directing the wire through a forming and dewatering passage starting from a forming throat converging to receive raw material; The first encirclement with wires in the open large radius shaping shoe of the first bend, which is dehydrated through two wires; A second encirclement of the wire on the roll in the opposite direction of the bend to dehydrate the raw material between the wire in the two directions; Paper machine web forming and dewatering device characterized in that consisting of steps. 25. The web forming and dewatering apparatus of claim 24, comprising adjusting the convergence angle of the two wires in the throat to enter the first exit of the bend. ※ Note: The disclosure is based on the initial application.