CN2345574Y

CN2345574Y - Counter and consequent three net formed paper making machine without waste water

Info

Publication number: CN2345574Y
Application number: CN 98252389
Authority: CN
Inventors: 宋大兴
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-30
Filing date: 1998-12-30
Publication date: 1999-10-27
Anticipated expiration: 2008-12-30

Abstract

The utility model relates to a counterclockwise and clockwise three-net formed paper making machine without discharging waste water. The utility model is characterized in that a pulp flowing box whose inner chamber is provided with a baffle plate, a formed plate, and an overflow hole is arranged between a cloth pulp device and a formed net; the formed net erected on a breast roller and a table roller is inclined towards the rear part; therefore, the paper pulp can be evenly distributed; the ingredient of the formed paper layer consists with the ingredient of the paper pulp; the direction of motion of the upper layer of three formed net and the upper surface of the first paper felt cloth can respectively form the clockwise, counterclockwise, counterclockwise direction of motion; the surface with more impurities all can be clamped at the middle of the compound paper layer; therefore, the net surface and the felt cloth can not be contaminated; the impurities in the paper pulp and the circulation water can not be increased as the time variation, so that the white water can not be discharged.

Description

Contrary along three net shaping no unloading water paper machines

The utility model relates to a kind of paper machine, relates in particular to the paper machine of three layers of composite sheet.

The utility model applicant once on " horizontally arranged multiple fourdrinier paper machine " patent basis of oneself, further improved and had applied for " many nets are to the net forming paper machine ".This paper machine not only has each board paper web and licks the advantage of moving, and also has compact conformation, takes up an area of less, holds advantages such as paper felt stroke is short, reliable, easy to operate.Yet this paper machine owing to can not fully be used for papermaking to whole components of paper pulp in whole process of production, causes the impure more time slurry of part as the plain boiled water discharging, pollutes or increases cost of sewage disposal.

The purpose of this utility model is, designs and provides a kind of contrary along three net shaping no unloading water paper machines, makes full use of whole components of paper pulp, and net washing water and squeeze water are recycled, to receive the actual effect of saving paper pulp and no unloading water.

For achieving the above object, the technical solution adopted in the utility model is as follows:

This paper machine is by three fourdriner forming devices, several felt and several squeezers, butt joint top couch (roll), butt joint lower couch (roll), anti-roll, drying cylinder constitute, and each fourdriner forming device constitutes by pulp distributor, forming net, breast roll, table roll, suction flat box and tight net roller, wite roll, forming table drip tray; It is characterized in that, paper machine of the present utility model, between pulp distributor and forming net, be provided with a head box, it is trapezoidal that the casing longitudinal section of this head box is an inversion, paper pulp porch in the casing is provided with baffle plate, make paper pulp form turbulent flow, breast roll in the bottom of head box, table roll is in the upper end of head box and make the forming net of frame between breast roll and table roll form the inclined-plane of a hypsokinesis, in case dehydration is too fast in the paper pulp; The back of baffle plate is provided with an overfall in head box, and the below of this overfall is provided with a forming board that almost parallels with the forming net wire side, to improve the uniformity of cloth slurry; Between breast roll and two ends of table roll, be provided with aulaeum, to prevent hanging.Described three fourdriner forming devices and felt, the forming net of table roll top becomes forward operation and becomes to hold connection with the butt joint top couch (roll) with the first band paper felt upper epidermis in its first fourdriner forming device, the forming net of table roll top becomes antikinesis and becomes to hold connection with the butt joint lower couch (roll) with the first band paper felt upper epidermis in the second fourdriner forming device, the first band paper felt with all pass through between lower couch (roll) and the anti-roll and by means of its transmission by two layers of compound paper web of first forming net and second forming net from dock, the forming net of table roll top becomes antikinesis with the first band paper felt in the 3rd fourdriner forming device, and become to hold connection with the last pressure roller of first squeezer that drives the first band paper felt, first is with paper felt and three layers of compound paper web to pass through between the last pressure roller of first squeezer and lower compression roller.Lick and move device and paper web is gone on the second band paper felt being provided with paper web between the first band paper felt and the second band paper felt by it, the second band paper felt between the upper and lower roll of second squeezer by and by its transmission; Being provided with paper web between the second band paper felt and the 3rd band paper felt licks to move device and by it paper web is moved to the 3rd and is with on the paper felt, the 3rd band paper felt between the upper and lower roll of the 3rd squeezer by and by its transmission, the paper web through pressing dry for several times becomes to hold connection with several cylinders of drying cylinder.

For more clearly illustrating the technical solution of the utility model, be described below with accompanying drawing in conjunction with the embodiments now:

Fig. 1-global design figure of the present utility model.

The structural representation of Fig. 2-head box.

Fig. 3-first (on) butt joint net and second (descending) docks the connection schematic diagram of netting.

The connection schematic diagram of Fig. 4-Di three forming nets.

When paper pulp sprays into from pulp distributor 12 in the casing 1a of head box 1, because its inner chamber baffle plate 22 stops that making paper pulp form turbulent flow and become evenly distributes; Set up the forming net 4a on breast roll 18 and the table roll 3, when paper pulp when the gap of forming net 4a and forming board 19 is passed through, because the gap is less and forming net becomes the inclined-plane, so the thickness distribution of paper pulp on wire side more evenly and not really soon dewatered, each component all can be used to papermaking equably in the paper pulp, aulaeum 2 can prevent hanging effectively, 20 of overfalls can make the high liquid level (HLL)s such as paper pulp maintenance in the head box, forming net 4a is by table roll 3 supportings, pulp layer anhydrates and through the pulp roller modification of surfaces through suction flat box 5, and forming net 4a holds connection with 7 one-tenths of butt joint top couch (roll)s and is back to breast roll 18 and constitutes a closed circulation through wite roll 23 tight net rollers 10.Structure and the identical second fourdriner forming device that forms symmetric arrays of a Fig. 1 left side first fourdriner forming device, its forming net 4b holds connection for 8 one-tenth with the butt joint lower couch (roll), make ply of paper and the ply of paper on first forming net on it compound, the first band paper felt 13 that has two-layer compound paper passes through between butt joint lower couch (roll) 8 and anti-roll 9; In the 3rd fourdriner forming device on the table roll direction forming net and the first band paper felt, 13 upper epidermis become antikinesis and hold connection for 14 one-tenth with the last pressure roller of first squeezer, making ply of paper on the 3rd forming net and the duplex paper on the felt 13 compound between the upper and lower pressure roller 14,14 ' of first squeezer is three layers of composite sheet.Again through upper and lower pressure roller 15, the 15 ' squeezing of second squeezer, the composite sheet on the second band paper felt was transferred on the 3rd felt and through upper and lower pressure roller 16, the 16 ' squeezing of the 3rd squeezer again after these three layers of composite sheets were transferred on the second band paper felt; At last, the paper web through draining holds to connect with a plurality of cylinders in the drying cylinder 17 paper is dried fully.Forming table drip tray 21 is used for collecting the water that gets off from forming net 4, suction flat box 5 and forming net leaching device, and transports to cistern by pump and recycle.

Paper machine of the present utility model, because its head box that is provided with previously makes paper pulp distribute more evenly, the composition in the shaping layer on the inclined-plane forming net is identical with the composition of paper pulp.The higher relatively upper strata of ply of paper compound tense impurity content all is clipped in the middle, and does not contact wire side and felt, so no matter in paper pulp or in the recirculated water of flushing forming net and felt the impurity relative amount can not raise.Avoided in the past along with impurity content in the increase paper pulp of production time and the recirculated water constantly raises, and the shortcoming of having to discharge plain boiled water.This paper machine is specially adapted to recycled writing paper production, because it does not have the discharging of dirt (in vain) water, is highly advantageous to and protects environment and reduce cost.

Claims

A kind of contrary along three net shaping no unloading water paper machines, by three fourdriner forming devices, several felt and several squeezers, butt joint top couch (roll), butt joint lower couch (roll), anti-roll, drying cylinder constitute, and each fourdriner forming device constitutes by pulp distributor, forming net, breast roll, table roll, suction flat box and tight net roller, wite roll, forming table drip tray; It is characterized in that, paper machine of the present utility model, between pulp distributor and forming net, be provided with a head box, it is trapezoidal that the casing longitudinal section of this head box is an inversion, paper pulp porch in the casing is provided with baffle plate, breast roll in the bottom of head box, table roll is in the upper end of head box and make the forming net of frame between breast roll and table roll form the inclined-plane of a hypsokinesis; The back of baffle plate is provided with an overfall in head box, and the below of this overfall is provided with a forming board that almost parallels with the forming net wire side; Between breast roll and two ends of table roll, be provided with aulaeum; Described three fourdriner forming devices and felt, the forming net of table roll top becomes forward operation and becomes to hold connection with the butt joint top couch (roll) with the first band paper felt upper epidermis in its first fourdriner forming device, the forming net of table roll top becomes antikinesis and becomes to hold connection with the butt joint lower couch (roll) with the first band paper felt upper epidermis in the second fourdriner forming device, the first band paper felt with all pass through between lower couch (roll) and the anti-roll and by means of its transmission by two layers of compound paper web of first forming net and second forming net from dock, the forming net of table roll top becomes antikinesis with the first band paper felt in the 3rd fourdriner forming device, and become to hold connection with the last pressure roller of first squeezer that drives the first band paper felt, first is with paper felt and three layers of compound paper web to pass through between the last pressure roller of first squeezer and lower compression roller.