SU1211054A1 - Line for manufacturing particle-board of coarse shavings - Google Patents

Description

The invention relates to the woodworking industry and can be used in the manufacture of chipboard.

Uejib inventions improve the quality of plates by increasing the number of sorted fractions.

FIG. I depicts a schematic diagram of the line for the manufacture of chipboard plates from large-sized chips; ..and FIG. 2 - sorting unit, side view.

The lines are made from large-sized chipboard in chipboard boards, including the node 1 of the 1enyl ... p (,. Iix particles, dryer 2, bunker, Suu. Their d ;, its particles, device 4; 1l) particles with quotations RLET-1 5 fans 6, a system of bunkers, 8.-i 9 sorted fractions, mixers I-P and 12, the main conveyor 13 with .forming machines 14, 15 press and 15 hot presses moreover, the device 4 for sorting wood particles is equipped with a node 17 for accelerating particles and a device 18 for selecting small fractions, with a bond -;: - l 17 pa3roiia h The asbestos are set by the iodine feeder b and nb in the form of endless mesh conveyors 19 with inclined branches arranged opposite to each other; perforations are mounted inside the conveyors on inclined aeves x;) psasiuchuyuyee boxes 20, and the arrangements. particles vy (in the form of 5 1. 1 connected to the fan) automatic prism 2 with perforation;; 1: lateral edges 22.

In addition, the sorting unit 4 includes a camera 23, at the top a. h; kg / mountain mounted HaKJiOiiiibd; chutes with flap 25, mesh transprter) 1- tied on drums 26, inside the net of mmc conveyors 19 are available on 1- | i 27 for spillage, perforation; and suction

The boxes 20 have openings 28, suction boxes 20 with noMonj, bro pipe 29 are connected to fan 6, ij.H with a slope 20 and a dust bin 31, under which the high-speed mixer 32 is located for dust. In the lower part of the chamber 23, the receiving conveyors 33 and 34, the needle rollers 35 and the control flaps 36 are mounted.

Lini works as follows.

Wood particles made in section 1 and dried in dryer 2 from hopper 3 of each chip are continuously fed to sorting unit 4. Sorted chips are fed to hoppers 7, 8 and 9 and further to mixers 10, 11 and 12. Resinated wood particles lay forming - mi maschinami 14 on the maiiiioM conveyor 13, then podpressovyvayut i ;; accoM 15 and pressed in hot press 16

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The mixture of large-sized wood particles is fed by the feeder 5 along inclined chutes 25 continuously to two retractive mesh re-conveyors 19 rotating towards each other, which dump material into the sorting chamber 23. When this is large, particles with relatively large mass and length of overhang fall from conveyors 19 through the center of the chamber is 23. The shorter parabola of small particles that fly from the tape near the drums 26 is shorter. When the fan 6 is operated in vacuum boxes 20, a vacuum is created, due to which some dust particles penetrate the upper horizontal branch of the conveyor grid 19 is cut and enters the particle receiver 27, while the other part of the dust penetrates into the box through the inclined branch of the conveyor grid 19 and the openings 28. The collected dust through the pipeline 24 is continuously fed through the fan 6 into the cyclone 30, the ae occurs deposition of the material, and then into a vertical dust bin 31 and a high speed mixer 32 for dust. Small thin lamellar particles that do not penetrate through the apertures 28 are pressed by air streams against the inclined prashaya branch of the conveyor mesh 19. After passing through the zone of action of the vacuum boxes 20, the chips are released from the belt and fall onto the conveyor 33, which removes particles from the chamber 23, It goes into a horizontal bunker of small particles 7 and further into a low-speed mixer of 10 small particles. From sticking small needle particles, the tape is cleaned with rollers 35. Some of the small particles that were picked up when they were dropped from the tape by large chips falling down the center of the sorting chamber 23, when approaching an isosceles prism 21 with holes, are thrown out of the regulating dampers 36 flowing at an angle to air streams, which are injected into the prism 21 through the pipeline from the fan 6. The large conditioned particles completely freed from the fine fractions fall onto the conveyor belt 34, which removes chips from the waste tirovki 4 and podayupdy them in a horizontal bunker 8 and low-speed mixer P. Thus, the whole t. The bar material is divided into three fractions: dust, fine and large particles.

The quality of chip separation HL: the fractions are adjusted by creating various suction levels in the suction pads ... 20, changing the position of the tilt angle: ac, lonok 36, adjusting the rotational speeds of the conveyors 19 and exhausting air from the holes of the prism 21. These fractions are used to make oriented laminated panels used in the construction and furniture industry as a substitute for plywood, as they have improved physical and mechanical properties.

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Compiled by N. Drozdov

Editor L. PovhanTehred I. VeresKorrektor A. Zimokosov

Order 588/19 Circulation 502Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (1)

LARGE-SCREW PRODUCTION LINE FOR PRODUCING LARGE-SCREW SHAPES, including a wood particle manufacturing unit, a dryer, a dry wood particle hopper, a device for sorting wood particles with a feeder and fans, a system of sorted fractions hoppers, mixers, a main conveyor with molding machines, molding machines, molding machines and a hot press, characterized in that, in order to improve the quality of the plates by increasing the number of sorted fractions, the device for sorting wood particles is equipped with a unit time It particles and fines selection device, wherein the particle acceleration unit is mounted under the feeder and is in the form of endless mesh conveyor arranged with towards each other inclined branches inside the conveyor mounted on the inclined branches perforated otsasy- _with vayuschie boxes and selection device © small wood particles made in the form of an isosceles prism connected to the fan with perforated side faces. SU ,, „1211054 FIG. 7 I2i1054