CN203021851U

CN203021851U - Fibre separator

Info

Publication number: CN203021851U
Application number: CN2012207273260U
Authority: CN
Inventors: 刘建涛; 刘建坡
Original assignee: Zhengzhou Leizhan Technology Paper Machinery Co Ltd
Current assignee: Zhengzhou Leizhan Technology Paper Machinery Co Ltd
Priority date: 2012-12-26
Filing date: 2012-12-26
Publication date: 2013-06-26
Anticipated expiration: 2022-12-26

Abstract

The utility model discloses a fibre separator, which comprises a conical chassis. A pulp inlet pipe is vertically arranged at the smaller side of the chassis; a light-impurity outlet pipe and a heavy-impurity outlet pipe are arranged at the larger end of the chassis; the smaller end of the chassis is connected to a support base; a main shaft stretching into the chassis is horizontally and rotatably arranged on the support base; a cutterhead in the chassis is arranged at one end of the main shaft; a belt pulley outside the chassis is arranged at the other end of the main shaft; a good pulp outlet pipe and a sieve plate are arranged at the upper part of the smaller end of the chassis; the cutterhead comprises a cylindrical cutterhead body; at least three rotary fins are uniformly arranged on the outer circumference of the cutterhead body; a wear-resisting alloy blade is arranged at the cutting side of each rotary fin; and the cutting surfaces of the wear-resisting alloy blades are linear. According to the utility model, separated light residues do not contain scraps of paper basically, so that fibre loss is reduced; the wear-resisting alloy blades are added to the cutterhead, so that the cutterhead is long in service life; the alloy blades are convenient to replace; and the width of the rotary fins increases; the cleaning capability of a sieve plate of the cutterhead is improved, the through-put capacity of the sieve plate is improved, and thus the production capacity is improved.

Description

A kind of defibrator

Technical field

The utility model belongs to the paper making equipment technical field, relates in particular to a kind of defibrator.

Background technology

Defibrator is that a kind of waste paper that adapts to is made the novel device that the needs of good paper pulp grow up, have and separate contained weight foreign material in secondary stock, fiber carried out secondary is discongested, the multiple performance such as energy-efficient, especially the removal ability to contained foreign material in waste paper (staple, sandstone, plastic sheeting, plastics paraffin, pitch) is strong, make paper pulp clean, thereby improve product specification.

Traditional defibrator cutterhead adopts arcuated fin piece, stirring capacity to slurry is strong, but the secondary size degradation ability to fiber is relatively poor, a large amount of scraps of paper appear in the light slag outlet at defibrator, subsequent recovery equipment is difficult to further discongest, reclaim, cause fiber loss high, caused larger waste.

The utility model content

The utility model provides a kind of to the strong defibrator of fiber secondary size degradation ability in order to solve weak point of the prior art.

for solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of defibrator, comprise the horizontally disposed conical casing of center line, the casing smaller side vertically is provided with pulp-inlet pipe along the casing tangential direction, the larger end of casing middle part is provided with light impurity and goes out pipe, the larger end downside of casing is provided with heavy seeds and goes out pipe, casing is connected with bearing than small end, horizontally rotate on bearing and be provided with the main shaft that extend in casing, main shaft one end is provided with the cutterhead that is positioned at casing, the main shaft other end is provided with and is positioned at the outer belt pulley of casing, casing be provided with the good pipe of starching out than small end top, be provided with the sieve plate that vertically is fixed on casing inner wall between good import of starching out pipe and cutterhead, described cutterhead comprises columnar cutter head, the cutter head excircle evenly is provided with at least three rotating vanes, the cutting side of each rotating vanes is equipped with an antifriction alloy blade, the cut surface of antifriction alloy blade is type linearly, rotating vanes closes on sieve plate one side, and to be provided with the sieve plate gap be the scraper plate of 1-3 ㎜.

Described cutter head inward flange is provided with installing hole, is provided with the end cap for the shutoff spindle end in the middle part of cutter head, and end cap removably connects by bolt and the cutter head that penetrates installing hole.

Adopt technique scheme, slurry is entered in conical casing with tangential direction by pulp-inlet pipe, under the brute force of advancing to starch pressure and rotary head promotes, slurry is along the casing High Rotation Speed, and move to the larger end of casing, and then return to cutterhead in the shape of a spiral, produce strong turbulent flow and hydraulic shear.Slurry is discongested out by the comprehensive function that hydraulic shear, fibre-fibre friction power and rotating vanes clash into.Slurry after discongesting promotes under the acting in conjunction of pressure in sieve plate both sides pressure differential and cutterhead, by the sieve aperture on sieve plate, gets married and start a new life and starches out the pipe discharge.Slurry produces very strong centrifugal force during High Rotation Speed in casing, under centrifugal action, the heavy seeds in slurry, fiber and light impurity are because the difference of proportion produces radially layered.Heavy seeds moves along casing inner wall, and because casing is tapered, heavy seeds is concentrated to large end at the volley gradually, is dumped at last heavy seeds and goes out pipe and separate; Light impurity proportion is little, is concentrated in the centre, and the light impurity in the middle part of the larger end of casing goes out pipe discharge continuously.

Rotating vanes leading edge of the present utility model installs the antifriction alloy blade additional, and the edge of antifriction alloy blade changes linear pattern into by arc, has increased the size degradation ability of whole cutterhead, carries out the secondary size degradation thereby make pulper fail the slurry of complete size degradation.The isolated light slag of the utility model does not contain the scraps of paper substantially, and fiber loss reduces; Cutterhead installs the antifriction alloy blade additional, long service life, and alloy blade is changed convenient; The rotating vanes width increases, and cutterhead improves the sieve plate cleansing power, and the sieve plate throughput increases, and production capacity improves.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is that in the middle of Fig. 1, enlarged drawing is looked on the left side of cutterhead.

The specific embodiment

as depicted in figs. 1 and 2, a kind of defibrator of the present utility model, comprise the horizontally disposed conical casing 1 of center line, casing 1 smaller side vertically is provided with pulp-inlet pipe 2 along casing 1 tangential direction, the larger end of casing 1 middle part is provided with light impurity and goes out pipe 3, the larger end downside of casing 1 is provided with heavy seeds and goes out pipe 4, casing 1 is connected with bearing 5 than small end, horizontally rotate on bearing 5 and be provided with the main shaft 6 that extend in casing 1, main shaft 6 one ends are provided with the cutterhead 7 that is positioned at casing 1, main shaft 6 other ends are provided with and are positioned at the outer belt pulley 8 of casing 1, be provided with the good pipe 15 of starching out than small end top in casing 1, be provided with the sieve plate 9 that vertically is fixed on casing 1 inwall between good import of starching out pipe 15 and cutterhead 7, cutterhead 7 comprises columnar cutter head 10, cutter head 10 excircles evenly are provided with at least three rotating vanes 11, the cutting side of each rotating vanes 11 is equipped with an antifriction alloy blade 12, the cut surface of antifriction alloy blade 12 is type linearly, rotating vanes 11 closes on sieve plate 9 one sides, and to be provided with sieve plate 9 gaps be the scraper plate 16 of 1-3 ㎜.

Cutter head 10 inward flanges are provided with installing hole 13, and cutter head 10 middle parts are provided with the end cap 14 for shutoff main shaft 6 terminations, and end cap 14 removably connects by bolt and the cutter head 10 that penetrates installing hole 13.

When work is used, motor drives belt pulley 8 by the V-belt and rotates, belt pulley 8 is by main shaft 6 band movable knife disc 7 High Rotation Speeds, slurry is entered in conical casing 1 with tangential direction by pulp-inlet pipe 2, under the brute force of advancing to starch pressure and rotating vanes 11 promoted, slurry was along casing 1 High Rotation Speed, and moved to the larger end of casing 1 in the shape of a spiral, and then return to cutterhead 7, produce strong turbulent flow and hydraulic shear.Slurry is discongested out by the comprehensive function that hydraulic shear, fibre-fibre friction power and rotating vanes 11 clash into.Slurry after discongesting promotes under the acting in conjunction of pressure in sieve plate 9 both sides pressure differentials and cutterhead 7, by the sieve aperture on sieve plate 9, gets married and start a new life and starches out pipe 15 discharges.Slurry produces very strong centrifugal force when casing 1 interior High Rotation Speed, under centrifugal action, the heavy seeds in slurry, fiber and light impurity are because the difference of proportion produces radially layered.Heavy seeds moves along casing 1 inwall, and because casing 1 is tapered, heavy seeds is concentrated to large end at the volley gradually, is dumped at last heavy seeds and goes out pipe 4 and separate; Light impurity proportion is little, is concentrated in the centre, and the light impurity in the middle part of the larger end of casing 1 goes out pipe 3 discharge continuously.Scraper plate 16 High Rotation Speeds are wiped the attachment on sieve plate 9 off simultaneously, and the sieve aperture on sieve plate 9 is kept clear.

Claims

1. defibrator, comprise the horizontally disposed conical casing of center line, the casing smaller side vertically is provided with pulp-inlet pipe along the casing tangential direction, the larger end of casing middle part is provided with light impurity and goes out pipe, the larger end downside of casing is provided with heavy seeds and goes out pipe, casing is connected with bearing than small end, horizontally rotate on bearing and be provided with the main shaft that extend in casing, main shaft one end is provided with the cutterhead that is positioned at casing, the main shaft other end is provided with and is positioned at the outer belt pulley of casing, casing be provided with the good pipe of starching out than small end top, be provided with the sieve plate that vertically is fixed on casing inner wall between good import of starching out pipe and cutterhead, it is characterized in that: described cutterhead comprises columnar cutter head, the cutter head excircle evenly is provided with at least three rotating vanes, the cutting side of each rotating vanes is equipped with an antifriction alloy blade, the cut surface of antifriction alloy blade is type linearly, rotating vanes closes on sieve plate one side, and to be provided with the sieve plate gap be the scraper plate of 1-3 ㎜.

2. a kind of defibrator according to claim 1, it is characterized in that: described cutter head inward flange is provided with installing hole, and the cutter head middle part is provided with the end cap for the shutoff spindle end, and end cap removably connects by bolt and the cutter head that penetrates installing hole.