CN2087207U

CN2087207U - Cylinder net former

Info

Publication number: CN2087207U
Application number: CN 90210400
Authority: CN
Inventors: 马占亮
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-04-18
Filing date: 1990-04-18
Publication date: 1991-10-23

Abstract

The utility model provides a super forming cylinder net former, which can be used for paper-making industries. The former is composed of a closed cylinder net cage which is assembled on a net vehicle and connected with a centrifugal type wind introducing machine, a small-size pulp flow box which is positioned on the closed cylinder net cage, a non-end paper-making blanket which is enclosed on the cylinder net cage through a forming roll and a couch roll, a polyester net which supports the blanket under the cylinder net cage, a white water tray, a cleaning device, etc. The utility model not only can realize the reconstruction for the method of net part forming, making fiber arrangement in paper sheets reasonable and the organization uniform, the vertically and horizontally pulling force ratio is decreased, the smoothness of the paper sheet can be improved, slip differences of a positive side and a reverse side are decreased, and thereby, the quality of net part forming and the production of the paper sheet are notably improved.

Description

Cylinder net former

The utility model provides a kind of configurable super shaping cylinder former on list, multi-cylinder paper machine and various board machine that is used for paper industry.

The cylinder mould machine floor space is little, small investment, and power and thermal energy consumption are low, and manufacturing, installation, maintenance etc. are easy, and operation and replacing dehydration equipment are convenient, so development is very fast.China is the maximum country of cylinder mould machine in the world, accounts for 90% of the total platform number of paper machine.But cylinder mould machine dehydration area is little, and the district that is shaped is short, limited by centrifugal force, and the speed of a motor vehicle is difficult for improving.The materials flow of cylinder vat entoplasm is moving, and plain boiled water water-level fluctuation in the rotary screen cage easily produces foam, and fleeces is poly-, causes product quality relatively poor; The poor of bigger slurry speed and network speed arranged during shaping, and fiber is many in the paper vertically arranges, and pulling force is bigger than ratio in length and breadth to cause paper; Sorting is arranged during shaping and scrub effect, make the paper smoothness reduce the level and smooth poor increase in positive and negative.So, cause cylinder mould machine to yield poorly, poor product quality can not be produced advanced paper.Like this, influence the future of cylinder mould machine to a certain extent, also hindered the development of China's paper industry simultaneously.Therefore, to the transformation of cylinder mould machine, particularly imperative at present to the transformation of net part forming method.

The purpose of this utility model provides a kind of super shaping cylinder former that the net part forming method is transformed realized, it not only can make in the paper fiber alignment reasonable, even tissue, reduce in length and breadth pulling force than ratio, and can avoid traditional net part forming the time to the sorting of fiber with scrub effect, improve paper smoothness, it is smoothly poor to reduce positive and negative, can realize that slurry speed is in full accord with network speed, not exist and get rid of the slurry phenomenon, thereby significantly improve the quality of net part forming and the output of paper.

The purpose of this utility model is achieved in that this device has fundamentally changed the wet end structure of traditional cylinder mould machine, and then has improved manufacturing process.Its rotary screen cage two ends are sealed with closure plate, there is vent to connect through airduct and centrifugal type draught fan on transmission side top, rotary screen cage is assembled on the net car by bearing block, the net car is equipped with castor and can moves along guide rail, on put the small-sized head box of positioning formula removable upper and lower labial lamina be housed, top lip of slice can be opened and can local fine setting.Forming rolls and couch roll utilize the adjustable support frame to be assembled on the frame respectively, by forming rolls and couch roll woollen blanket are enclosed on the rotary screen cage, and woollen blanket moves below rotary screen cage, and with the woollen blanket below the tight rotary screen cage of the polyester net holder of wite roll tensioning.Be provided with white wate tray below the polyester net, wite roll and white wate tray all are packed on the net car.For limiting net car shift position on guide rail, net car bottom is provided with detent rail.Couch roll can adopt machinery pressurization or pneumatic pressurization to the pressure adjustment of rotary screen cage wire side.

Because the rotary screen cage that the utility model adopts is assembled on the net car, the shift position is easy to, thus can utilize net car shifting out on guide rail that rotary screen cage is carried out draping, easy to maintenance.On put slurry in the small-sized head box of positioning formula after abundant diffusion, again by top lip of slice that can local fine setting and fixedly be sprayed between aulaeum on the cylinder, guaranteed that effectively slurry spares cloth, make the paper cross direction ration accurate.Head box can move on frame, adjusts the optimum position between mouth spray and cylinder according to different paper pulp, paper kind.Forming rolls and couch roll are enclosed in woollen blanket on the rotary screen cage, and move below rotary screen cage, and be simultaneously tight with the holder of polyester net, can make the formed page of the slurry on cylinder through abundant diffusion and even cloth, is sandwiched between net, the blanket and moves, and increases the tightness of paper.This apparatus structure connection and reasonable arrangement, combining cylinder, fourdrinier wire, folder net three major types manufacturing process is one, and web part of paper machine is provided with rotary screen cage and net groove not, has head box to be located at rotary screen cage top, and top lip of slice can locally be finely tuned, and can make slurry spray cloth equably on cylinder.Therefore, cylinder mould machine hanging in the net groove, woollen blanket moves, paper forms traditional approach have fundamentally been changed below woollen blanket on cylinder, make slurry speed consistent with network speed, do not exist and get rid of the slurry phenomenon when being shaped, when having eliminated the cylinder mould machine net part forming effectively to the sorting of fiber with scrub effect, make in the paper fiber alignment more rationally, even tissue, reducing in length and breadth, pulling force compares ratio, improve smoothness, the reduction positive and negative are smoothly poor, significantly improve the quality of net part forming and the output of paper.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is a kind of concrete structure schematic diagram of the utility model.

Fig. 2 is the utility model operation principle schematic diagram.

Describe concrete structure of the present utility model and working condition in detail according to Fig. 1-2.1 soleplate, 2 felt leading rolls, 3 clear water pipes, 4 felt trashers, 5 squeeze rolls, 6 frames, 7 white wate trays, 8 wite rolls, 9 polyester nets, 10 net cars, 11 rotary screen cages, 12 forming rolls, 13 head boxs, 14 clear water pipes, 15 couch rolls, 16 suction boxs, 17 woollen blankets among the figure.The frame 5 of this device is packed on the soleplate 1, and felt leading roll 2,

clear water pipe

3,14 felt trashers 4, squeeze roll 5, forming rolls 12, head box 13, couch roll 15, suction box 16 are assembled in respectively on the relevant position of frame.Rotary screen cage 11 is assembled on the net car 10 by bearing block, the closure plate at cage two ends is fixed on the net car 10, has vent to connect through airduct and centrifugal type draught fan on its transmission side top, to increase negative pressure in the net, accelerate dewatering speed and improve the speed of a motor vehicle, to help improving product yield.Rotary screen cage 11 bottoms are provided with the plain boiled water outlet, to discharge plain boiled water in the net.Net car 10 bottoms are provided with castor and can move on guide rail, are used for shifting out rotary screen cage 11, and draping is very convenient.Detent rail is equipped with in net car 10 bottoms, can limit the shift position of net car 10 on guide rail.Small-sized head box 13 utilizes regulator to be assembled on the frame 6 of rotary screen cage 11 tops, and head box 13 is removable on frame 6, so that according to the requirement of different paper pulp, paper kind, selects best whitewashing position.On put the small-sized head box 13 of positioning formula and form constant part by a Taper Pipe pulp distributor and a plurality of shunt pipe, be provided with dividing plate and rotatable doctor-roll in the case, the slurry diffusion fully, evenly, particularly its upper and lower labial lamina can be changed, top lip of slice can be opened, and can be by the local fine setting of regulator, this can make slurry spray cloth equably on cylinder, guarantees that the paper cross direction ration is accurate.Forming rolls 12 and couch roll 15 all are pipe rollers, outer surface kiss-coating, roller external diameter are 1/4 of rotary screen cage external diameter, and forming rolls 12 two ends are assembled in frame 6 tops by the adjustable support frame, so that according to the paper dewatering situation, adjust the shaping zone position that felt 17 for no reason contacts with cylinder.Couch roll 15 two ends are assembled on the support arm of frame 6 by the bearing support of adjustable roller pressure, to adjust the pressure of couch roll 15 at any time.Its pressure can adopt machinery pressurization or pneumatic pressurization.The felt for no reason 17 that matches with rotary screen cage 11 is enclosed on the rotary screen cage 11 by forming rolls 12 and couch roll 15, and woollen blanket 17 is moved below cage.Be provided with the polyester net 9 of the tight woollen blanket 17 of holder below rotary screen cage 11, polyester net 9 utilizes adjustable wite roll 8 tensionings.Below polyester net 9, be provided with white wate tray 7, to collect the plain boiled water deviate from when slurry is shaped.This not only recyclable plain boiled water can prevent that also the woollen blanket 17 of process below white wate tray 7 from being made dirty by the plain boiled water dip-dye once more.Wite roll 8 and white wate tray 7 are installed on the net car 10.

This device can be according to the paper of actual production or the kind needs of cardboard, and unit or multimachine use.Unit uses can copy 18 grams-80 gram paper; Multimachine uses can copy various cardboards.Its unit course of work is as follows: Taper Pipe pulp distributor and the shunt pipe of slurry in constant part enters in the head box 13, after abundant diffusion by mouth spray (between the upper and lower labial lamina that has mixed up), be sprayed on equably on the wire side of rotary screen cage 11, slurry is carried out preliminary hydro-extraction by the negative-pressure adsorption in the rotary screen cage 11.Shaping district, blanket, the network folder that enters forming rolls 12 control along with the wire side of operation held slurry and continued dehydration then, forms the l Water Paper page or leaf.This moment, slurry speed was consistent with network speed, improved the speed of a motor vehicle, also can not get rid of the slurry phenomenon.When blanket network operation during to rotary screen cage 11 bottoms, woollen blanket 17 outsides are tight by 9 holders of polyester net, the destruction that can protect the l Water Paper page or leaf that has been shaped not to be subjected to hollow plain boiled water in the cage, also can make simultaneously fiber in the l Water Paper page or leaf by further consolidation, increase the tightness of paper.When blanket, network folder are held the l Water Paper page or leaf and are walked to couch roll 15 pressor areass, further dehydration.Along with blanket, net separate, the l Water Paper page or leaf is from net, and holder through suction box dehydration setting, through press dewatering, oven dry, press polish, coils into paper then on woollen blanket 17.Woollen blanket 17 squeezing after 3 flushings of clear water pipe, felt trasher 4 are washed and beaten, enters squeeze roll 5 again after white wate tray 7 belows are returned uply.Woollen blanket 17 through extrusion dehydration passes through forming rolls 12 again, forms the district that is shaped once more with the cylinder that is cleaned by clear water pipe 14, continues to press from both sides slurry shaping papermaking.

Claims

1, a kind of super shaping cylinder former that is used for paper industry, the clear water pipe that comprises rotary screen cage and felt for no reason with matching, forming rolls, couch roll, felt trasher and cleaning woollen blanket and rotary screen cage, it is characterized in that the rotary screen cage two ends seal with closure plate, its transmission side top has vent to connect through airduct and centrifugal type draught fan, rotary screen cage is assembled on the net car by bearing block, and the net car is equipped with castor and can moves along guide rail; On put the small-sized head box of positioning formula removable upper and lower labial lamina be housed, top lip of slice can be opened and can local finely tune; Forming rolls and couch roll utilize the adjustable support frame to be assembled on the frame respectively, by forming rolls and couch roll woollen blanket is enclosed on the rotary screen cage, woollen blanket moves below rotary screen cage, and woollen blanket with the tight rotary screen cage of the polyester net holder of wite roll tensioning below, polyester side off the net is provided with white wate tray, and wite roll and white wate tray all are arranged on the net car.

2, former according to claim 1 is characterized in that net car bottom also is equipped with the detent rail that limits net car shift position on guide rail.