JPH0189991U

JPH0189991U -

Info

Publication number: JPH0189991U
Application number: JP18375687U
Authority: JP
Priority date: 1987-12-03
Filing date: 1987-12-03
Publication date: 1989-06-13

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例のパルプスクリー
ン装置に用いられるスクリーンシリンダのスリツ
ト拡大図、第２図は第１図のＡ―Ａ線に沿う矢視
図、第３図は本考案の第２実施例のパルプスクリ
ーン装置に用いられるスクリーンシリンダのスリ
ツト拡大図、第４図は従来のパルプスクリーン装
置の平面図、第５図は同パルプスクリーン装置の
側面図、第６図はスクリーンシリンダの斜視図、
第７図、第８図は従来のスリツトの拡大図である
。１……スクリーンシリンダ、２……入口部、３
……内側ケーシング、４……流路、５……トラツ
プ、６……ローター、７……撹拌室、８……流れ
方向、９……出口部、１０……リゼクト出口部、
１１……主軸、１２……突起部、１３……電動機
、２０……スリツト、２９……スリツト幅、３０
……スリツト入口部、３１，３２，３３……スリ
ツト入口部壁面。 Fig. 1 is an enlarged view of the slit of the screen cylinder used in the pulp screen device according to the first embodiment of the present invention, Fig. 2 is a view taken along the line A-A in Fig. 1, and Fig. 3 is a view of the screen cylinder according to the present invention. FIG. 4 is a plan view of the conventional pulp screen device, FIG. 5 is a side view of the same pulp screen device, and FIG. 6 is an enlarged view of the slits of the screen cylinder used in the pulp screen device of the second embodiment. Perspective view,
FIGS. 7 and 8 are enlarged views of conventional slits. 1...Screen cylinder, 2...Inlet part, 3
... Inner casing, 4 ... Channel, 5 ... Trap, 6 ... Rotor, 7 ... Stirring chamber, 8 ... Flow direction, 9 ... Outlet section, 10 ... Reject outlet section,
11...Main shaft, 12...Protrusion, 13...Electric motor, 20...Slit, 29...Slit width, 30
...Slit entrance part, 31, 32, 33...Slit entrance part wall surface.

Claims

[Scope of utility model registration request]

A pulp screen in which fibers containing foreign substances are made to flow by a rotating rotor having protrusions on the surface, and foreign substances contained in the fibers are removed by a screen cylinder having slits perforated in a direction crossing the rotational direction of the rotor. In the device,
The wall surface of the slit entrance portion on the upstream side along the rotational direction of the rotor is formed with a wall surface having an arcuate cross-section, and the wall surface of the slit entrance portion on the downstream side is formed with a wall surface with a cross-sectional shape of a straight line or a bent straight line. A pulp screen device characterized in that a flow path shape near a slit entrance portion is asymmetrical with respect to the center line of the slit.