FI125599B

FI125599B - Sheet of fiber pulp sorting machine, fiber pulp sorting machine and method for sorting fiber pulp

Info

Publication number: FI125599B
Application number: FI20106191A
Authority: FI
Inventors: Jussi Ahola
Original assignee: Valmet Technologies Inc
Priority date: 2010-11-12
Filing date: 2010-11-12
Publication date: 2015-12-15
Also published as: DE102011086205A1; FI20106191A; FI20106191A0

Description

The pulp of the screen is detached, and a method for sorting kuitumassalajitin Kui-tumassan

Background of the Invention

The invention relates to a fiber pulp screen blade with the leading edge and the trailing edge of the wing and the wing is limited in its longitudinal ends.

The invention further relates to a kuitumassalajitin comprising a secretarial-tisylinterin pulp.

The invention further relates to a method for screening fiber pulp, in which method the pulp is kuitumassalajittimella with a screen cylinder having a cylinder surface to form a fibrous the screen species-telupinnan, and at least one fiber pulp screen blade to control the pulp flow with respect to the screen cylinder of the screening surface.

Pulp and paper-board production used in the sorted one of its processing phases before feeding the pulp to a paper or kar per machine or similar device, in order to remove various impurities, slivers and other paper or board web in a poor quality of the parts to the fiber pulp. Sorting properties can also be used between differing distribution of the pulp fiber fractions. Device used for screening pulp is typically called kuitumassalajittimeksi or the pulp screening device. A commonly used fiber mass of the screen type comprises a screen cylinder with a cylindrical screening surface with openings for screening pulp. The apertures in the screening surface may be, for example, round or elongated holes or slits formed in the screening surface. Kuitumassalajittimeen equipped with a screening cylinder typically further includes a cylindrical screening surface arranged inside the rotor and supported to the rotor fiber pulping converter wings or foilisiipiä which the rotor rotates may la-jittelupinnalla a suction pressure pulse, which means sorting the surface of the accumulated reject pulp and the fibers are removed from the screening surface and return to the pulp mixture. The screen fiber pulp comprises the leading edge of the wing, which is the part of the blade, which first point the pulp rotates with the rotor blade. Furthermore, the wing includes a trailing edge, which leaves the pulp. Wing, there is still the leading edge and the trailing edge of the wing joining the upper surface or front surface, which is directed substantially perpendicular to the fiber mass of the screen of the screen cylinder, and the leading edge and the trailing edge of the wing joining the lower surface or back surface, which is directed substantially away from the screen cylinder. Its longitudinal wing is limited to the wing ends. During the pulp screen according to the above-mentioned activities species concerned pulp pressure on the upper side of the wing is less than the lower side of the wing. It follows that only part of the flow from the lower side of the wing fibrous mass may flow out of the ends of the wing through the wing bottom surface and possibly further to the upper side of the wing, where it causes the fibrous pulp-savirtauksen turbulence. The turbulence weakens the fibrous sorter sort-telutulosta and sorting capacity, thereby undermining the sorting energy efficiency. The fiber pulp flow away from the bottom surface of the wing and possibly further on the upper surface of the wing through the wing ends may also consumes the ends of the wing and the wing upper surface and the lower surface of the wing in the vicinity of the ends, thus shortening the life of the blade.

It is also used kuitumassalajittimia with a rotating or rotatable screen cylinder, and the stator and supported foilisiipiä. In such kui-tumassalajittimessa foil wings are located on the screen and the accept pulp to the sorting area is on the opposite side of the screen cylinder with respect to foilisiipiin. During such a sorted fiber mass species in operation of the pulp pressure is higher than the upper surface of the wing on the lower side of the wing. This, in turn, that part of the wing upper surface side of the flowing-fiber pulp can flow through the lower side of the wing ends of the wing, causing the fibrous mass flow turbulence on the lower side of the wing. As mentioned, the turbulence weakens the fiber mass of the screening results and the sorting capacity, thereby undermining the sorting energy efficiency. The fiber pulp flow from the upper surface of the wing and the wing may continue through the ends of the lower surface of the wing may also be similarly consumes the ends of the wing and the wing upper surface and the lower surface of the wing in the vicinity of the ends, thus shortening the life of the blade.

Various kuitumassalajittimia and the wings is disclosed for example in EP-A-1 143065, US-A-6311 850 and US 3261 468.

Summary of the Invention

The aim of the invention is thus to provide a solution which Kui-tumassalajittimessa the flow of pulp through the ends of the wing can be reduced.

According to the invention, the fibrous wing of the screen is characterized in that the fiber pulp screen blade further comprising a blade arranged on the ends of the adjustable end fins to prevent the flow of pulp through the ends of the wing.

Kuitumassalajittimelle according to the invention is characterized in that kuitumassalajitin further comprises any one of claims 1 - the pulp screen according to nine wing.

The method according to the invention for screening pulp is characterized in that, when controlling the flow through the vane of the pulp screening surface of the screen cylinder with respect to at least partly arranged to prevent the flow of pulp through the ends of the wing of the wing ends of the adjustable-end of the row.

The pulp The screen comprises a wing leading edge and the trailing edge of the wing and the longitudinal ends of the wing is limited. Further, the fibrous screen blade comprises a blade arranged in the ends of the fins end to prevent the flow of pulp through the ends of the wing.

Organized wing of the ends of the end fins inhibit the flow of the pulp from the upper surface of the wing or on the upper surface or the lower surface of the wing or the underside of the wing ends. As a result, the blade through the ends of the wing lower surface side of the wing to the upper side or wing of the upper surface side of the vane to move to the lower side of the pulp flow and turbulence caused by it of the wing upper surface or the lower surface at least is reduced or eliminated even completely, which enhances created by the blade against the screen cylinder screening surface imupainesykin-a, which improves screening surface clearance, sorting improve results and increase sorting capacity, thereby increasing the energy efficiency of sorting.

According to one embodiment of the wing, the wing leading edge, and waste-töreunaa connecting the wing upper surface and a lower surface, and that the wing blade is arranged on the end, substantially in the direction of the upper surface of the wing directed end fins to prevent the flow of fiber pulp from the upper surface or the upper surface of the wing through the wing ends. The upper surface of the wing in the direction facing end-fins either in their entirety prevent or at least reduce the upper surface of the wing or wing upper surface of the flow, but the flow of pulp through the wing ends.

According to another embodiment of the wing has a leading edge and a trailing edge of the wing blade arranged connecting the upper surface and the lower surface of the wing and the ends of the blade ends, and substantially the upper surface of the blade facing in the direction of the end of the wing lower surface of the fins in the direction directed end fins. The wing lower surface in the direction directed end fins to further reduce pulp attempt to flow out of the underside of the wing or wing lower surface of the wing through the ends.

In a third embodiment, the fibrous the screen the upper surface of the wing comprises a wing leading edge of the curved line section, and curved towards the blade trailing edge drop-off portion and the end fins vane is disposed above the blade ends of the drop-off portion corresponding to the ends of the wing portion. Typically, the upper surface of the wing blade is curved convexly jättöosuudella drop-off of the wing-to edge, so that between the wing and the upper surface of the screen cylinder towards the trailing edge of the wing is formed with increasing area. In this case, during the sorting of the wing motion of the rotor periphery of the leading edge of the above, consists in that the upper surface of the wing of the state of lower pressure than the pressure of the wing on the lower side in the space. Since the upper surface of the wing side is mentioned with increasing space, strives fiber suspension to flow through the wing ends of the underside of the wing upper surface of the wing, in particular jättöosuutta a corresponding end portion of the wing, the wing jättöosuutta responsible for the wing end portion placed in the end are greatly reduced.

According to a fourth embodiment of the fiber mass of the wing päätyevä the screen is arranged to extend throughout the drop-off of the wing portion corresponding to the blade end portion. Since the pulp flow wing of the ends of the wing undersurface of the top surface or vice versa, takes place almost entirely of the wing jättöosuutta the corresponding wing of the ends of the leg, holding the blade end fins substantially wing of the whole jättöosuutta responsible for the wing end portion can be via the wing ends of the fiber mass flow of the wing undersurface of the top surface, or vice versa, and from the sorting process disadvantages block almost entirely.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will now be described in greater detail in connection with preferred embodiments with reference to the accompanying drawings, in which Figure 1 shows a schematic view of a kuitumassalajitinta side view in cross-section, Figure 2 shows schematically the open kuitumassalajitinta the top of Figure 1, Figure 3 shows a schematic view of the pulp screen blade according to the prior art, the direction of the blade end view, Figure 4 shows a schematic view of the pulp screen blade according to the solution in the direction of the blade end view, Figure 5 shows a schematic side view of a fiber mass sorter rotor and wing-span support the rotor, Figure 6 shows a schematic side view of a second fiber-Mass sorter rotor and wing-span support the rotor, Figure 7 shows a schematic view of a the wing lower surface as viewed in the direction of the wing, Figure 8 shows a schematic view of a second open kuitumassalajitinta above and Figure 9 shows a schematic view of a third kuitumassalajitinta as viewed from above.

DETAILED DESCRIPTION OF THE INVENTION

Figure 1 shows schematically a kuitumassalajitin 1 in a cross section and Figure 2 shows a schematic view of Figure 1 opened kuitumassalajitin 1 above. According to Figure 1 Kui-tumassalajittimessa 1, which can subsequently be used also referred to as the sorter 1, a frame structure 2, inside which is fixedly supported on the fibrous species-timeen one of the screen cylinder 3. In the screen cylinder 3 inside the volume of the formed fibrous mass when feed chamber 1 4 or the feed space 4, which may be used also referred to the sorting area. The screen 1 and the input pulp to be fed into the feed chamber 4 to be connected to the feed conduit 5 of the arrow F in the manner schematically. Case of Figure 1 the pulp is fed into the feed chamber 4 at the top of the screen 1 directly through the screen cylinder 3 above the feed inlet 5. The pulp could be fed into the feed chamber 4 at the top of the screen 1 via the screen 1 on the side of the inlet conduit, wherein the fiber pulp fed to the screen cylinder 3 to form a feed chamber 4 tangentially. Feed conduit can be placed on the screen 1 in some other way.

A screen cylinder 3 has openings 6 so that the fiber stock Kui-tukooltaan up to a certain size, the fibers can pass through the holes 6 and to move the screen cylinder 3 holes 6 through the screen 1 from the plenum 4 of the screen 1 the accept-chamber 7 or the accept space 7. In Figures 1 and 2 of the screen 1 of the accept chamber 7 Displacement formed between the screen cylinder 3 and the screen 1 of the frame structure 2. A screen cylinder surface of the cylinder 3 openings 6 form a part of the screen 1 of the screening surface 8. These openings may be, for example, round or oblong holes in the screen cylinder 3 or axis of the substantially the entire length of the screening surface 8 slots. 8 passed the portion of the screen is one of the screening surface of the fibrous pulp from the feed chamber 4 that is passed to the accept chamber 7 of fiber pulp, the screen is a legitimate one accepts a sort of kuitumassajakeen. 7 men, screens shifted one chamber in the mass proportion of the current can be removed from one species-exchanger chamber in the context of the accept aggregate 7 through 9 schematically by arrow A in the manner out of the screen 1 for further use in the pulp manufacturing process in the following steps. Case of Figure 1 the accept from the accept chamber 7 is removed from the bottom of the screen 1 directly through the accept aggregate 7 under the accept chamber 9. The accept to also remove the accept chamber 7 at the bottom of the screen 1 through the screen 1 on the side of the accept aggregate. Accept aggregate the screen 1 can be placed also in another manner than the one shown in Fig.

The screen 1 is further rejektiyhde 10, through which the surface of the sorting 8-impermeable portion of the screen 1 to the feed chamber 4 from the fiber pulp fed to a sorting rejected pulp fraction and the fiber stock accompanying impurities, i.e. the reject removed from the screen 1 of the arrow R schematically illustrated in further processing. Figure 1 case illustrated by rejektiyhde 10 is positioned in the screen 1, the lower portion directly to the screen cylinder below 3 but the screen 1, structure, operating method and the intended application rejektiyhde 10 may be positioned in some other way, the screening apparatus 1. Thus, for example, the screen 1, the upper part can be placed rejektiyhde very lightweight impurities, such as styroksipalojen, remove.

According to Figures 1 and 2 kuitumassalajitin 1 further comprises a screen cylinder 3 on the inside of the fiber mass of the screen 1 to the feed chamber 4 disposed rotor 11, which can be rotated by a motor 12, for example, as shown schematically in Figure 2 in the direction shown by arrow S. The rotor 11 is connected by a shaft 13 to the motor 12 and the rotational speed of the rotor 11 can be altered, for example by changing the engine 12 speed of rotation. Engine 12 speed can be changed, for example, the motor connected to a frequency converter 14, which can control the rotation speed of the motor 4, for example, control signal CM. For clarity, Figures 1 and 2 are not shown in the rotor support structures 11, which allows the rotor 11 to support the screen 1, so that the rotor can be rotated.

The rotor 11 is still through the support arms 15 of the rotor 11 to the frame structure 11 'supported by the fibrous screen 1 wings 16 or foilisiipiä 16. A fiber pulp screen 1, the wing 16 is shown in Figure 3 the blade 16 end of the prior art as seen 17 or the blade 16 end 17 direction. For clarity, Figure 3 does not show the rotor 11 or the support arms 15. The rotor 11 rotates, the blades 16 will move with respect to the screening surface sorting lupinnalla 8 8 at the time of suction pressure pulse on the fiber stock, wing 16 thus controlling the flow of the fiber mass of the screen 1 with respect to the screening surface 8. Thanks to said suction pressure pulse on the screening surface 8 and the fibers accumulated reject removed from the screening surface 8 and return to the pulp mixture, the screen cylinder 3 wherein the sorting-lupinta 8 is cleaned. The wings 16 can be supported via the support arms 15 also directly to the rotor shaft 11, when the rotor 11 has no other special frame structure.

The pulp of the screen is 1, the blade 16 comprises a leading edge 18, which is the part of the blade 16, the rotor 11 rotates, the first point the pulp. Further, the blade 16 comprises a trailing edge 19, which leaves the pulp. Wing 16 is further connecting the blade 16 to the leading edge 18 and trailing edge 19 of the upper surface 20 or front surface 20 which is directed substantially perpendicular to the fiber mass of the screen 1 of the screen cylinder 3, and the vane 16 leading edge 18 and joining the trailing edge 19 of the bottom surface 21 or rear surface 21 which is directed substantially away from the screen cylinder 3. In its longitudinal the wing 16 is limited to the wing 16 of the ends 17.

Kuitumassalajittimessa according to Figures 1 and 2, one must therefore be rotated by the rotor 11 and the stationary screen cylinder 3. Kuitumassalajitin one could also, however, comprises a rotatable screen cylinder 3 and the stationary stator, which should be supported foilisiipiä 16. The general structure and function of various the screens is skilled in the art per se known and will not be dealt with here any more.

Fig 3 the blade 16 of the foil wings 16 of the wing upper surface 20 is curved convexly 16 jättöosuudella 23 towards the trailing edge of the wing 19 so that between the upper surface 16 of the wing 20 and the screen cylinder 3 consists of three trailing edge of the wing 19 increasing towards the area. In this case, according to Figure 3 the rotor 11 arranged foil-wings during the fibrous the screen 16 with one operation, the wing 16 moves the leading edge of the screen cylinder 3 at the periphery 18 above, in 20 of the 16 upper surface of the wing of the space formed by the pressure lower than that 21 of the blade 16 the lower surface of the pressure is. Because 20 of the 16 upper surface of the wing is listed in increasing state, seeks the pulp or fiber suspension flow into the wing bottom surface 21 on the upper surface 20 of the wing 16 ends through 17, in particular 16 jättöosuutta blade 23 corresponding to the blade 16 end 17 portion, causing Kui-tumassavirtauksen turbulence of the wing 16 on the upper surface 20 and the pressure drop across the screen 1 in operation. The turbulence and pressure loss weakens the fibrous screen 1 screening results and the sorting capacity, thereby undermining the sorting energy efficiency. The fiber pulp flow through the blade 16 from the bottom surface 21 of the wing 16 on the upper surface 20 of the wing 16 the ends 17 can also consume end 17 of the wing 16 and the wing 16 of the top surface 20 and lower surface 21 of the wing 16 near the ends 17, 16 thereby shortening the blade life.

Figure 4 shows schematically a second kuitumassalajitti-men one wing 16 the wing 16 as viewed in the direction of end 17. Wing 16 has a leading edge 18 and a trailing edge 19 and leading edge 18 and trailing edge 19 that connects, substantially perpendicular to the fiber mass of the screen 1 of the screen cylinder 3 towards directed towards the upper surface 20 and the leading edge 18 and trailing edge 19 connecting the substantially directed away from the screen cylinder 3 the lower surface 21 of the blade 16 upper surface 20 comprises two arcuate portion, toward the leading edge 18 of the curved line section 22 and towards the trailing edge 19 of the curved jättöosuuden 23. The leading portion 22 and drop-off portion 23 is the intersection point with the wing 16 and the distance between the screen cylinder 3 is the smallest. The wing of Figure 4 16 further comprising substantially 20 to indicate the upper surface of the wing 16 in the direction 20 to indicate the upper surface towards the screen cylinder 3 or the screen cylinder 3 sorting surface 8 directed or to show the blade 16 päätyevän 24 of the blade 16 in the direction of pointing päätyevä 24 at least to reduce, or even a whole prevent the flow of the fiber mass of the blade 16 21 on the upper surface side of the lower surface 20 of the wing 16 via the end 17 of the wing 16. As a result, 16 of the top surface 20 side of the blade is no longer, at least not in the previous extent, the formation of the wing 16 via the end 17 of flow turbulence caused by the pulp when the pulp screen 1 Sort earnings will improve and Sat-jittelukapasiteetti rises, which increases the energy efficiency of sorting.

Figure 4 also shows schematically by the broken line 21 side of the lower surface of the wing 16 that is substantially or directional pointer 21 to indicate the direction of the lower surface of the wing 16 päätyevä 25, which prevents the flow of the fiber mass 21 away from the side of the wing lower surface 16 of the wing 16 via the end 17. 21 to show the underside of the wing 16 in the direction pointing päätyevä 25 in such a way to further reduce turbulence in the pulp, thereby further enhancing the sorting process.

Figure 4 of the pulp screen 1, the wing 16 and a substantially pointer 16 the upper surface of the wing 20 in the direction of päätyevä 24 that the pointer substantially the wing 16 of the lower surface 21 in the direction päätyevä 25 is dimensioned so as to extend substantially 16 throughout the drop-off portion of the wing 23 of the corresponding wing 16 end 17 portion, or a trip. What päätyevä 24 and / or cover 25, 16 formed by the lower the pressure difference between the wing stabilizes the blade 16 through the end 17 and the less pulp flows wing between the lower and the upper surface of the wing 16 via the ends 17 a greater portion of the blade 16 end 17. The more effective päätyevä 24, 25 prevent a pressure differential of stabilization and the fiber pulp flow wing 16 through 17 end, the greater the proportion of 16 length between ends 17 of the wing produces an equal secretarial-tisylinteriä 3 effectively decontaminating the pressure variation while preventing place the vanes 16 the ends 17 of the area of wings 16 wear. If päätyeviä 24 is not at all as the blade 16 the ends 17 of the wing 16 is close to the length of the blade portion 16 is formed lower than the center of the fiber pulp pressure variation to the ends 16 of the wing area 17 of the screen cylinder 3 can clog, reducing the sorting capacity. Päätyevillä 17 of the wing 16 function in the screen cylinder 3 effectively purifying the whole body of the wing length between the ends 16 17. The end fins 24 and / or 25 to prevent the blade 16 from absorbing the screen reject pulp back to the one sorting mode. This advantage is particularly important where the wings 16 extend from the screen cylinder 3 in the axial direction from the screening surface 8 a of the apertured area.

Päätyevä 24 and / or päätyevä 25 could also extend to only a part of the wing 16 jättöosuutta 23 or the lead-portion 22 of the corresponding wing 16 end 17 or the portion of the trip. Päätyevän 24 extending wing 16 of the end 17 at least a portion of the wing 16 jättöosuutta 23 can already significantly reduce the flow of fiber pulp 21 side of the blade 16 the lower surface 20 side 16 of the upper surface of the wing blade 16 end through 17, since 21 side of the fibrous mass flow wing 16, the lower surface 16 of the upper surface of the wing 20 side through the end 17 of the wing 16 of the wing 16 of the leading portion 23 in practice very limited. Päätyevän 25 extending at least a portion of the wing 16 jättöosuutta 23 can be said to further reduce the flow of the fiber mass 21 side of the lower surface 20 of the wing 16 side of the upper surface 16 of the wing.

Päätyevä 24 and / or 25 päätyevä, however, could also be implemented in such a way that päätyevä 24 and / or 25 päätyevä extend only part 16 and the drop-off portion of the wing 23 so that the leading portion 22.

20 show the upper surface of the wing of Figure 4 of the wing 16 16 in the direction directed päätyevän 24 upper edge 24 ', that is, substantially opposite to or perpendicular to the direction of the blade 16 to the upper surface with respect to 20 directed päätyevän 24 edge 24' is a substantially straight blade 16 for all drop-off-portion 23. As a result, päätyevän 24 the upper edge 24 'of the wing 16 a distance D from the upper surface 20 of the wing 16 increases the leading edge 18 trailing edge 19 in the direction of direction. When päätyevän 24 upper edge 24 ', as shown in Figure 4 straight and when it is also substantially the entire length at the same radial distance from the rotating rotor 11 from the central axis, the wing 16 does not move to open the flow space between the wing 16 of the lower and upper surface, which reduces the plateau pressure difference and the mass flow of the fiber through the end of the wing between the lower and the upper surface. If päätyevän 24 of the top edge 24 'or part of it is straight, the end of the 24-tyevän production is costly and positioning accurately to the correct location more feasible.

Depending on the embodiment of päätyevän Päätyevän 24 24 upper edge 24 'could also be at least one section of the curved vanes 16, for example, so that the upper edge 24 päätyevän 24' would correspond to a radius of curvature 24 päätyevän at least one section of the upper surface 21 curvature 16 of the wing.

21 show the blade of Figure 4 of the wing 16 16 lower surface in the direction directed päätyevän 25 lower edge 25 ', that is, substantially opposite to or perpendicular to the direction of the blade 16 the lower surface oriented in the 21 päätyevän 25 edge 25' is a substantially straight blade 16 for all drop-off-portion 23. As a result, päätyevän 25 the lower edge 25 'of the blade 16 away from the lower surface 21 will grow at least some portion of the wing 16 drop-off portion 23 of the wing 16 of the leading edge 18 trailing edge 19 in the direction of direction. When päätyevän 25 lower edge 25 ', as shown in Figure 4 straight and when it is also substantially the entire length at the same distance the blade 16 from the lower surface 21, the blade 16 moves 21 the direction of moving the fibrous layer of the blade 16 the lower surface stays 21 of the blade 16, a lower surface, which reduces the pressure difference to stabilize the flow of the pulp from the wing 16 between the end 17 of the wing 16 via the lower and upper surfaces. If päätyevän 25 the lower edge 25 'or part of it is straight, so päätyevän 25 production is inexpensive and positioning accurately to the correct location easy to implement.

25 Päätyevän lower edge 25 'could also be at least one section of the curved vanes 16, for example, in such a way that the lower edge 25 päätyevän 25' would correspond to a radius of curvature 25 päätyevän at least some portion 21 of the radius of curvature of the wing lower surface 16.

The wing 16 can be prepared, for example, by bending metal plates and metal plates bent by attaching metal plates to each other. In this case, it is possible that the end fins 24, 25 are formed integral with the wing 16 by bending metal plates suitably blade 16 at the ends 17 of the end fins 24, 25 may be fixed, for example bolted vane 16 ends 17. If the vane 16 is formed of a plastic material or from a compo composite material by injection molding, the blade 16 end fins 24, 25 is the simplest form of separate lots, and draws the wing 16, for example, bolt or screw mounting. The end fins 24, 25 can also be formed by machining the vane 16 to the end 17 if the blade 16 is prepared in advance prepared sii-piaihiosta. Päätyevä 24, 25 may be attached to the end 17 of the wing 16, for example by gluing or welding to the blade and päätyevän depending on the manufacturing materials.

Figure 5 is a schematic side view of a way to support the mass of the fiber blade 16 of the screen 1 to the rotor 11. Vane 16 is supported on the rotor 11 to the frame structure 11 'of the two support arm 15. Support arms 15 could also be only one or also more than two. 15 Number of support arms used depends on the wing 16 taipumisherkkyydestä screen from one use. The wing 16 at each end 17 is fixed to the plate-like body 26, which forms as well as substantially an upper surface of the wing 16, 20 in the direction toward the secretarial-tisylinterin three screening surface 21 show the blade 8 directional or indicate 16 päätyevän 24 that substantially the wing 16 of the lower surface in the direction substantially opposite to the direction of the screen cylinder 3 sorting the surface of the wing directional or indicating the relation 8 16 päätyevän 25. Alternatively, mounted at each end 17 of the plate-like pieces of the wing 16, 26 could be formed only substantially the top surface of the wing 16, 20 in the direction towards the screen cylinder 3 sorting the surface of the blade 8 directional or indicate 16 päätyevän 24 or only the substantially wing 16 21 show the direction of the lower surface, directed away from the wing 8 or 3 to indicate the screen cylinder 16 of screening surface 25 päätyevän.

Figure 6 is a schematic side view of a second way of supporting the mass of the fiber blade 16 of the screen 1 to the rotor 11. Vane 16 is supported on the rotor 11 of the wing 16 with two ends 17 attached to the support arm 15 which support the vane 16 of the rotor 11 to the frame structure 1T. At the same time the support arms 15 form, and substantially the upper surface of the wing 16, 20 in the direction towards the screen cylinder 3 sorting the surface of the blade 8 directional or indicate 16 päätyevän substantially the wing 16 of the lower surface 21 in the direction 24 and substantially in the opposite direction of the wing directed or to indicate the screen cylinder 3 sorting the surface of a 8 16 päätyevän 25.

Figures 16 length 5 and 6 of the wing substantially corresponds to the three length of the rotor 11 or the screen cylinder, but the blade 16 could also be the rotor 11 or the screen cylinder 3 shorter than the length, whereby the rotor 11 to support a number between different supplements vanes 16 in a row at the same position the outer periphery of the rotor 11. 3 Alternatively, the length of said rotor 11 of the screen cylinder or shorter vanes 16 to support the rotor 11 in stages so that the row of rotor blades 11 in the longitudinal direction 16 are different from each other at an outer periphery of the rotor 11.

Figures 5 and 6 the fins 24 and the end 25 of the wing 16 is arranged in the end 17 so that both the päätyevän 24 and the blade 16 between the upper surface 20 and the angle formed end-fin 25 and wing 16 between the lower surface 21 is substantially rectangular. Päätyevä päätyevä 24 or 25 may also be arranged vane 16, so that both päätyevän 24 and the blade 16 between the upper surface 20 consisting of an angle that the angle formed päätyevän 25 and the vane 16 between the lower surface 21 deviates from a right angle.

The end fins 24 and / or 25 may be attached to the blade 16 the ends 17 in such a way that the position of the blade 16 päätyevien 24 or 25, or 24 at the top of päätyevän 24 'the distance of the wing 16 from the upper surface 20 and / or päätyevän 25 lower edge 25' of the distance of the wing 16 from the lower surface can be adjusted. In addition to or instead of end fins 24 and / or 25 may be attached to the blade 16 the ends 17 in such a way that the angle päätyevien 24 or 25 position of the blade 16, the angle between the päätyevän 24 and the blade 16 upper surface 20 and / or päätyevän 25 and the wing lower surface 21 can be adjusted .

When foilisiipeä 16 of the screen cylinder 3 is moved in the circumferential direction of the rotor 11 through vane 16 displaces the fiber pulp screen cylinder 3 in the radial direction of the screen cylinder 3 H projektiokorkeutensa radial extent. Project height H is shown schematically on the left side of Figure 4; proj tiokorkeutta-reflecting screen cylinder with four circumferentially substantially parallel to the guides schematically shown in a thin dashed line. Päätyevän 24 upper edge 24 'away vane 16 trailing edge 19, wing 16 from the lower surface 20 measured is preferably at least the height H of the half that is, H / 2, preferably two-thirds of the height H of a 2/3 H, and most preferably a height H. In the preferred embodiment päätyevän 24 top edge 24' is approximately 16, the upper surface of the wing 20 up to date at the point where the blade 16 line section 22 becomes jättöosuudeksi 23, which päätyevän 24 top edge 24 'is preferably a line is drawn vertically, 20 form 16 of the upper surface of the wing into the corresponding arch to or the screen cylinder 3 the radius of curvature abiding arc of the blade 16 trailing edge 19 at 24 at the top of päätyevän 24 'distance from the lower surface 16 of the wing 21. The higher päätyevä, the more effectively prevent the pressure differential and stabilization of the pulp flow 16 of the wing end 17 of the wing 16 between the upper surface 20 and lower surface 21.

The maximum thickness of the foil wings 21 between the upper surface 16 and lower surface 20 is p. 25 Päätyevän the lower edge 25 'distance from the trailing edge 19 of the wing 16, as measured from the lower surface of the wing 16 p equal to 21, preferably up to a thickness to at least a third of the thickness of the p / 3. A suitable päätyevän 25 above the trailing edge 19 of the wing 16 effectively prevents the pressure difference between the plateau and the fiber pulp flow through the end 16 of the blade 17 blade 16 upper surface 20 and lower surface 21, and only caused a little extra fiber mass movement.

In some cases, the ends 16 of the wing 17 arranged in the end fins 24 are advantageously arranged in such a way that they have a height size of the blade 16 end 17 on the way. However, the height of the blade 16 päätyevän 24 at the point where the blade 16 line section 22 becomes jättöosuudeksi 23, is preferably less than two-thirds of the wing upper surface 16 a clearance 16 of the wing 20 and sihtisylinte-circuit 3 the smallest distance between. 16 päätyevän height of the blade 24 the wing-cord section 22 and / or 23 jättöosuudella may otherwise be, for example, as described above. The päätyevän Preferably, the wing of the lead-leg portion and drop-off leg of the share align themselves on behalf Highness smoothly in an arc line section 22 and 23 jättöosuuden confluence. Siipievän a suitable design of the wing line section and jättöosuuden confluence can be effective in limiting the pulp flow between the upper and lower surface of the wing through the wing end to the wing line section and jättöosuuden confluence.

The wing 16 päätyevän 24 upper edge 24 'form preferably adhere to the screen 1 of the screen cylinder 3 the radius of curvature shape, however, so that päätyevän 24 upper edge 24' of the and the screen cylinder 3 remains necessary operating clearance, for example, at least a third of the 16 upper surface of the wing 20 and three between the screen cylinder clearance that is, the minimum distance. As a result, päätyevän 24 upper edge 24 'does not cause the fiber pulp radial movement of the screen cylinder and to effectively prevent the pulp flow to the blade 16 through the end 17 of the wing 16 on the upper surface 24 of the top edge 20 or the upper surface 20 Päätyevän 24' form may also be the only part of the blade 16, the lead portion 22 or the drop-off as a percentage of 23 in the manner of the screen cylinder 3 follows the radius of curvature.

In the above examples, the blade according to the solution shown in connection with the rotor kuitumassalajittimien solution but could also be used kuitumassalajittimissa, in which the blades is supported on a stationary stator and the screen cylinder is arranged to rotate. Figure 8 is a schematic view of one form of the kuitumassalajitin one above the open. Figure plenum kuitumassalajittimessa one of the eight ranks 4 of the screen 1 body 2 and the structure 3 of the screen cylinder arranged to rotate in the rotation direction of the RS. The speed of rotation of the screen cylinder 3 can be controlled by a frequency converter controlled motor. 7 accept chamber of the screen cylinder 3 is located on the inside. A screen cylinder 3 on the inside, or 7 of the accept chamber of the screen cylinder 3 is still located fixedly supported kuitumassalajittimeen one stat-rotor 28, the frame structure 28 'is foilisiipiä 16. Wing 16 is in turn shown and substantially pointer 16 the upper surface of the wing 20 in the direction of päätyevä 24 that substantially blade 15 supported by support arms 16 21 show pointing in the direction of the lower surface päätyevä 25. For clarity, end fins 24 and 25 are shown in only one visible in the foil wings 16 Päätyevä 25 is schematically shown in dashed lines. Compared shown in Figures 1 and 2, the screen 1 is as in figure 8 kuitumassalajittimessa one of the screen cylinder 3 and the foil wings 16, relative movement between respect to one another opposite a stationary foil wings 16 a trailing edge 19 of the rotatably screen cylinder certain periphery of the first point and the vane 16 leading edge 18 last. The wing 16 thus formed on the upper surface 20 lower surface 21 of the wing 16 a pressure higher than the pressure which causes the flow of pulp from the upper surface 20 of the wing 16 of the wing 16 on the lower surface 21 of the wing 16 through 17 end. The wing 16 end of at least the blade 20 of the 16 upper surface disposed päätyevä 24 and possibly 21 side of the blade 16 lower surface positioned päätyevä 25, which päätyevä 24 and / or päätyevä 25 are placed in at least a portion of the wing 16 jättöosuutta 23 corresponding to the blade end 17 portion, reduce, thereby, essentially fibrous mass flow 20 through the side of the wing upper surface 16 of the wing 16 to the lower side 21 of the wing 16 end 17. The solution and advantages of the different possible forms of embodiment are similar to those shown in the Figures 1 - 2 and 4 - 7 context.

Similar kuitulajittimissa Figure 8, which is arranged to rotate the screen cylinder 3, is held in the end of the foil wings 16 päätyevän 24 and / or 25 significant advantage of the fact that the ends of the screen cylinder provides a significant separation of the screen cylinder 3 surface 8 purifying imupainepulssi. In this case, kiilaantuva between the foil wings 16 and the screen cylinder 3 the pulp does not escape through the ends 16 of the wing 17, but the pulp kiilaantumisvaikutus relates to a screen cylinder, blades 3, enhancing the openings of the screen cylinder 3 6 purification.

Figure 7 shows schematically a fibrous mass of one wing of the screen 16 lower surface 21 of the wing 16 in the direction of view. 7 shows a plow wing 16 is shaped like a plow or blade 16 having a first blade portion 16 'and the second wing portion 16'. The first wing 16 of the blade portion 16 'has a first end 16a' and a second end 16b '. The second wing portion 16 of the blade 16 'has a first end 16a' and a second end 16b '. 16 'second end 16b' of the first wing portion and 16 "second end 16b 'of the second wing portion form a blade of Figure 7, 16 ends of 17 16' first end 16a 'of the first wing portion and 16' first end 16a 'of the second wing portion are arranged relative to each other in such a way that is the angle between them, wherein the angle of the wing 16 is formed in the shape of the cam 27, which is positioned to one side of the first blade section 16 'of the second end 16b of "16" second end 16b' and the second wing portion of the wing 16 formed by the ends 17 of the connecting fictitious line. The first blade portion 16 'and the second wing portion 16' may be combined with each other initially separate parts or they may be initially as a single piece. Or plow-like plow-shaped blade 16 supported by the fibrous screen 1 of the rotor 11 to the frame structure 11 'such that the nose 27 of the wing 16 directed towards the direction of rotation of the rotor 11 in the direction S. If a plow-shaped blades under 16 in Figure 7 would be used for a stator equipped kuitumassalajittimessa, supported by the wing 16 the pulp screen 1 of the stator to the frame structure so that the blade 16 directed towards the cam 27 in the opposite direction with respect to the rotation direction of the screen cylinder. Figure 7 further illustrates the wing 16 of the cam 27, and item 17 placed in the ends of the support arms 15 of the wing 16 to the end 17 may be further arranged end fins 24 and the fins 25 may end in accordance with an earlier described.

As shown, according to the solution for the wing 16 could be, for example, only 16 of the top surface of the wing 20 indicate the direction of the end fins 24, which, depending on the pulp screen 1, the operating principle would prevent the flow of current through the mass of the wing ends of the wing lower surface of the direction of the upper surface of the wing or the wing upper surface of the direction of the lower surface of the wing. Alternatively, the solution of the wing 16 could be the basis of, for example, only 16 of the lower surface of the wing 21 indicate the direction of the end fins 25, which, depending on the pulp screen 1, the operating principle would prevent the fibrous mass flow of the wing through the ends of the wing upper surface of the direction of the underside of the wing or the wing lower surface of the direction of the upper surface of the wing. However, the solution of the wing 16 could be the upper surface of the wing 16 and 20 show the direction of the end fins 24 and the lower surface 21 of the wing 16 indicate the direction of the end fins 25, which together prevent the flow of pulp through the wing lower surface between the ends of the wing and the wing upper surface.

Figure 9 is a schematic view of a third kuitumassalajitin 1 above. Figure 9 sorter according to one is a fixed SiH tisylinteri 3, inside which is disposed a rotatable rotor 11. The rotor 11 of the frame structure 11 'is supported by blades 16 or foilisiipiä 16 so that the foil wings 16 is supported on the rotor 11 to the frame structure 11' directly without using foilisiipien 16 from the lower surface 21 Specific support arms 15 Foilisiipien 16 on the lower surface 21 and the rotor 11 of the frame structure 11 'have the same radius of curvature and foilisiipien 16 lower surface 21 is directly against the rotor 11 of the frame structure 11' so that the fiber mass can not pass foilisiipien 16 lower surface 21 and the rotor 11 of the frame structure 11 between them. In some embodiments, the rotor 11 of the frame structure 11 'may constitute a foil wings 16 lower surface 21, wherein the foilisiipi 16 may even be an integral part of the rotor 11. The vanes 16 end 17 is still 20 show the upper surface of the blades 16 in the direction indicate the end fins 24, the effect of which is as described above. A similar type of bracing the wing 16 can also be utilized Kui-tumassalajittimissa, which is a rotating screen cylinder and a fixed stator equipped with blades 16, 28.

Skilled in the art it is obvious that as technology advances, the basic idea of the invention can be implemented in many different ways. The invention and its embodiments are thus not restricted to the above examples but may vary within the scope of the claims. Thus, for example, the example of Figures 1 and 2, the fibrous screen 1 plenum four ranks of the screen cylinder 3 on the inside, but the fiber mass of the screen 1, the feed chamber 4 could be located also the screen cylinder 3 and the pulp screen 1, the frame structure 2, at which the rotor 11 could be placed in the screen cylinder 3 and the pulp screen 1, the frame structure into two, between feed chamber 4 . the wings of the solution päätyevillä 24 and / or end-tyevillä 25 with 16 can also be placed accept chamber side in particular on those screens the locations where a fixed stator and the rotary screen cylinder.

In the examples shown in wing profiles, in which the wing 16 a cross-section of the wing 16 of the leading edge 18 the direction of the blade 16 trailing edge 19 in the direction comes first thicker and then thins, but 20 show the upper surface of the wing 16 in the direction of and / or the wing 16 of the lower surface in the direction päätyevällä 24 and / or wing with päätyevällä 25 16 a cross-sectional shape of the vane 16 leading edge 18 trailing edge direction of the blade 16 in the direction 19 may vary in different ways. Thus, the vane 16 cross-sectional shape of the wing leading edge 16 of the wing 18 direction 16 in the direction of the trailing edge 19 may be continuous, for example, thicker or thinner.

Claims

1. Fibermassasorterares (1) vinge (6) med en ledningskant (18) och en bakkant (19) och vilken vinge (16) i sin längdriktning begränsas till vingens (16) kortändar (17), kännetecknad av att fibermassasorterarens (1) vinge (16) vidare omfattar i vingens (16) kortändar (17) anordnade reglerbara ändfenor (24, 25) för att förhindra att fibermassan strömmar via vingens (16) kortändar (17).The wing (6) of the fiber pulp (1) having a guide edge (18) and a trailing edge (19) and whose wing (16) is limited in its longitudinal direction to the short ends (17) of the wing (16), characterized in that the wing of the fiber pulp sorter (1) (16) further comprises adjustable end fins (24, 25) arranged in the short ends (17) of the wing (16) to prevent the fiber mass flowing through the short ends (17) of the wing (16).

2. Fibermassasorterares (1) vinge (16) enligt patentkrav 1, kännetecknad av att vingen (16) uppvisar en övre yta (20) och en nedre yta (21) av vingen (16) vilka förenar vingens (16) ledningskant (18) och bakkant (19) och att vingen uppvisar i vingens (16) kortändar (17) anordnade ändfenor (24) riktade väsentligen åtminstone i en av vingens (16) övre yta (20) angiven riktning för att förhindra att fibermassan strömmar från vingens (16) övre yta (20) eller till den övre ytan (20) via vingens (16) kortändor (17) eller ändfenor (25) riktade väsentligen åtminstone i en av vingens (16) nedre yta (21) angiven riktning för att förhindra att fibermassan strömmar från vingens (16) nedre yta (21) eller till den nedre ytan (21) via vingens (16) kortändar (17).The wing (16) of the fiber pulp sorter (1) according to claim 1, characterized in that the wing (16) has an upper surface (20) and a lower surface (21) of the wing (16) which joins the guide edge (18) of the wing (16). and the trailing edge (19) and the wing having at its short ends (17) disposed end fins (24) arranged substantially at least in one direction indicated by the upper surface (20) of the wing (16) to prevent the pulp from flowing from the wing (16) ) upper surface (20) or to the upper surface (20) via the short ends (17) or end fins (25) of the wing (16) directed substantially at least in a direction indicated by the lower surface (21) of the wing (16) to prevent the fiber mass flows from the lower surface (21) of the wing (16) or to the lower surface (21) via the short ends (17) of the wing (16).

3. Fibermassasorterares (1) vinge (16) enligt patentkrav 1 eller 2, kännetecknad av att vingen (16) uppvisar en övre yta (20) och en nedre yta (21) av vingen (16) vilka förenar vingens (16) ledningskant (18) och bakkant (19) och att vingen (16) uppvisar i vingens (16) kortändar (17) anordnade både ändfenor (24) riktade väsentligen i en av vingens (16) övre yta (20) angiven riktning för att förhindra att fibermassan strömmar från vingens (16) övre yta (20) eller till den övre ytan (20) via vingens (16) kortändor (17) samt ändfenor (25) riktade väsentligen åtminstone i en av vingens (16) nedre yta (21) angiven riktning för att förhindra att fibermassan strömmar från vingens (16) nedre yta (21) eller till den nedre ytan (21) via vingens (16) kortändar (17).The wing (16) of the fiber pulp sorter (1) according to claim 1 or 2, characterized in that the wing (16) has an upper surface (20) and a lower surface (21) of the wing (16) which joins the guide edge (20) of the wing (16). 18) and trailing edge (19) and the wing (16) has at the short ends (17) of the wing (16) arranged both end fins (24) directed substantially in one direction indicated by the upper surface (20) of the wing (16) to prevent the fiber mass streams from the upper surface (20) of the wing (16) or to the upper surface (20) via the short ends (17) of the wing (16) and end fins (25) directed substantially at least in one of the lower surface (21) indicated by the wing (16) to prevent the pulp from flowing from the lower surface (21) of the wing (16) or to the lower surface (21) via the short ends (17) of the wing (16).

4. Fibermassasorterares (1) vinge (16) enligt något av de föregående patentkraven, kännetecknad av att åtminstone vingens (16) övre yta (20) omfattar ett mot vingens (16) ledningskant (18) krökt ledningsavsnitt (22) och ett mot vingens (16) bakkant (19) krökt bakavsnitt (23) och att vingens (16) ändfena (24, 25) är placerad i vingens (16) kortända (17) på ett avsnitt av vingens (16) kortända (17) som motsvarar nämnda bakavsnitt (23).The wing (16) of the fiber pulp sorter (1) according to one of the preceding claims, characterized in that at least the upper surface (20) of the wing (16) comprises a conduit section (22) curved against the wing edge (16) and a wing section (22). (16) trailing edge (19) curved rear section (23) and the end fin (24, 25) of the wing (16) is positioned in the short end (17) of the wing (16) on a section of the short end (17) of the wing (16) corresponding to said rear section (23).

5. Fibermassasorterares (1) vinge (16) enligt patentkrav 4, kännetecknad av att vingens (16) ändfena (24, 25) är anordnad att sträcka sig till ett avsnitt av vingens (16) kortända (17) som motsvarar vingens (16) hela bakavsnitt (23).Fiber pulp sorter (1) wing (16) according to claim 4, characterized in that the end fin (24, 25) of the wing (16) is arranged to extend to a section of the wing end (16) short end (17) corresponding to the wing (16). entire rear section (23).

6. Fibermassasorterares (1) vinge (16), k ä n n e t e c k n a d av att avståndet (D) för den i den av vingens (16) övre yta (20) angivna riktningen riktade vingens (16) ändfenas (24) övre kant (24’) från vingens (16) övre yta (20) är anordnad att öka från vingens (16) ledningskants (18) riktning mot vingens (16) bakkant (19).The wing (16) of the fiber pulp sorter (1), characterized in that the distance (D) of the upper edge (24) of the wing (16) indicated by the upper surface (20) indicated by the upper surface (20) indicated by the wing (16) ) from the upper surface (20) of the wing (16) is arranged to increase from the guide edge (18) of the wing (16) towards the rear edge (19) of the wing (16).

7. Fibermassasorterares (1) vinge (16) enligt något av de föregående patentkraven, kännetecknad av att vingens (16) ändfenas (24, 25) position och/eller ställning i förhållande till vingens (16) övre yta (20) och/eller vingens (16) nedre yta (21) kan regleras.The blade (16) of the fiber pulp sorter (1) according to any one of the preceding claims, characterized in that the position and / or position of the blade (16) of the end fin (24, 25) relative to the upper surface (20) of the blade (16) and / or the lower surface (21) of the wing (16) can be adjusted.

8. Fibermassasorterares (1) vinge (16) enligt något av de föregående patentkraven, kännetecknad av att vingens (16) ändfena (24, 25) är en från vingen (16) löstagbar separat del, som är fäst i vingens (16) kortända (17) med bult- eller skruvfastsättning.The wing (16) of the fiber pulp sorter (1) according to one of the preceding claims, characterized in that the end fin (24, 25) of the wing (16) is a separate part detachable from the wing (16) which is fixed in the short end of the wing (16). (17) with bolt or screw fastening.

9. Fibermassasorterares (1) vinge (16) enligt något av de föregående patentkraven, kännetecknad av att vingen (16) omfattar ett första vingavsnitt (16’) och ett andra vingavsnitt (16”), så att det första vingavsnittet (16’) och det andra vingavsnittet (16”) tillsammans bildar en plogformig vinge (16).The wing (16) of the fiber pulp sorter (1) according to one of the preceding claims, characterized in that the wing (16) comprises a first wing section (16 ') and a second wing section (16'), so that the first wing section (16 ') and the second wing section (16 ") together forms a plow-shaped wing (16).

10. Fibermassasorterare (1), vilken omfattar en siktcylinder (3) för sortering av fibermassa, kännetecknad av att fibermassasorteraren (1) vidare omfattar en fibermassasorterares (1) vinge (16) enligt något av patentkraven 1-9.Fiber pulp sorter (1), comprising a screen cylinder (3) for sorting fiber pulp, characterized in that the fiber pulp sorter (1) further comprises the wing (16) of a pulp sorter (1) according to any one of claims 1-9.

11. Fibermassasorterare (1) enligt patentkrav 10, känneteckna d av att siktcylindern (3) är stöttad fast i fibermassasorteraren (1) och att fibermassasorteraren (1) vidare omfattar en i sorterarens (1) matarkammare (4) placerad roterbar rotor (11), i vilken var och en vinge (16) av fibermassasorteraren (1) är stöttad.The fiber pulp sorter (1) according to claim 10, characterized in that the screen cylinder (3) is supported in the fiber pulp sorter (1) and that the fiber pulp sorter (1) further comprises a rotatable rotor (11) placed in the feeder chamber (4). , in which each wing (16) of the fiber pulp sorter (1) is supported.

12. Fibermassasorterare (1) enligt patentkrav 11, kännetecknad av att var och en vinge (16) är stöttad i rotorns (11) stomkonstruktion (11’) via ett eller flera stödskaft (15).Fiber pulp sorter (1) according to claim 11, characterized in that each wing (16) is supported in the frame structure (11 ') of the rotor (11) via one or more support shafts (15).

13. Fibermassasorterare (1) enligt patentkrav 10, känneteckna d av att siktcylindern (3) är anordnad roterande och att fibermassasorteraren (1) vidare omfattar en i sorterarens (1) acceptkammare (7) placerade i fibermassasorteraren (1) fast stöttad stator (28), i vilken vingen (16) är stöttad.Fiber mass sorter (1) according to claim 10, characterized in that the screen cylinder (3) is arranged rotatingly and that the fiber mass sorter (1) further comprises a stator (28) fixed in the acceptance mass chamber (1) in the acceptor chamber (1). ) in which the wing (16) is supported.

14. Fibermassasorterare (1) enligt patentkrav 13, känneteckna d av att var och en vinge (16) är stöttad i statorns (28) stomkonstruktion (28’) via ett eller flera stödskaft (15).Fiber pulp sorter (1) according to claim 13, characterized in that each wing (16) is supported in the frame structure (28 ') of the stator (28) via one or more support shafts (15).

15. Förfarande för sortering av en fibermassa, i vilket förfarande fibermassan sorteras med en fibermassasorterare (1) med en siktcylinder (3), vars cylinderyta bildar fibermassasorterarens (1) sorteringsyta (8), samt åtminstone en vinge (16) hos fibermassasorteraren (1) för att styra strömmen av fibermassa i förhållande till siktcylinderns (3) sorteringsyta (8), kännetecknat av att vid styrning via vingen (16) av fibermassans ström i förhållande till siktcylinderns (3) sorteringsyta (8) hindras åtminstone delvis strömmen av fibermassa via vingens (16) kortändar (17) med reglerbara ändfenor (24, 25) anordnade i vingens (16) kortändar (17).A method of sorting a fiber pulp, in which the method of fiber pulp is sorted by a fiber pulp sorter (1) with a screen cylinder (3), the cylinder surface of which forms the sorting surface (8) of the pulp sorter (1), and at least one wing (16) of the fiber pulp sorter (1). ) to control the flow of fiber pulp relative to the sorting surface (8) of the screen cylinder (3), characterized in that, when guided by the wing (16), the flow surface of the fiber pulp (3) with respect to the screen surface (8) of the screen pulp (3) is prevented at least partly by the flow of fiber pulp via the short ends (17) of the wing (16) with adjustable end fins (24, 25) arranged in the short ends (17) of the wing (16).

16. Förfarande enligt patentkrav 15, kännetecknat av att strömmen av fibermassa hindras åtminstone från vingens (16) övre yta (20) eller till den övre ytan (20) via vingens (16) kortändar (17) åtminstone med ändfenor (24) riktade i en av vingens (16) övre yta (20) angiven riktning eller åtminstone från vingens (16) nedre yta (21) eller till den nedre ytan (21) via vingens (16) kortändar (17) åtminstone med ändfenor (25) riktade i den av vingens (16) nedre yta (21) angivna riktningen.Method according to claim 15, characterized in that the flow of fiber pulp is prevented at least from the upper surface (20) of the wing (16) or to the upper surface (20) via the short ends (17) of the wing (16) at least with end fins (24) directed at one direction indicated by the upper surface (20) of the wing (16) or at least from the lower surface (21) of the wing (16) or to the lower surface (21) via the short ends (17) of the wing (16) at least with end fins (25) the direction indicated by the lower surface (21) of the wing (16).

17. Förfarande enligt patentkrav 15 eller 16, kännetecknat av att strömmen av fibermassa hindras från vingens (16) övre yta (20) eller till den övre ytan (20) och från vingens (16) nedre yta (21) eller till dess nedre yta (21) via vingens (16) kortändar (17) både med ändfenor (24) riktade väsentligen i den av vingens (16) övre yta (20) angivna riktningen och med ändfenor (25) riktade väsentligen i den av vingens (16) nedre yta (21) angivna riktningen.Method according to claim 15 or 16, characterized in that the flow of fiber pulp is obstructed from the upper surface (20) of the wing (16) or to the upper surface (20) and from the lower surface (21) of the wing (16) or to its lower surface. (21) via the short ends (17) of the wing (16) both with end fins (24) directed substantially in the direction indicated by the upper surface (20) of the wing (16) and with end fins (25) directed substantially in the lower of the wing (16) surface (21).

18. Förfarande enligt något av patentkraven 15-17, kännetecknat av att vingen (16) är stöttad i en rotor (11) placerad i fibermassasorterarens (1) matarkammare (4) att rotorn (11) roteras för att flytta vingen (16) i förhållande till fibermassasorterarens (1) sorteringsyta (8) för att styra strömmen av fibermassa i förhållande till siktcylinderns (3) sorteringsyta (8).Method according to any one of claims 15-17, characterized in that the blade (16) is supported in a rotor (11) located in the feed chamber (4) of the fiber pulp sorter (4) rotating the rotor (11) to move the blade (16) in in relation to the sorting surface (8) of the fiber pulp sorter (1) for controlling the flow of fiber pulp in relation to the sorting surface (8) of the screen cylinder (3).