CN101440585A

CN101440585A - Device for supporting wire, felt or paper web in paper mill

Info

Publication number: CN101440585A
Application number: CNA2007101880032A
Authority: CN
Inventors: 克劳斯·巴特尔马斯; 海因茨·巴特尔马斯
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-21
Filing date: 2007-11-21
Publication date: 2009-05-27
Also published as: AT504814A3; AT504813A3; AT504814A2; AT504813A2; AT504545A1; AT10291U1

Abstract

A device for supporting a wire or felt in a paper mill or a paper web produced in a supporting plant. The supporting device comprises at least one rotatably mounted supporting roller or the like. At least one supporting roller or the like is mounted in a bearing shell and is located on the side facing away from the wire, felt or paper web, to which a flowable medium is applied, in particular a liquid or a gas, which means that it can be kept at a distance from the supporting surface.

Description

In the paper mill, be used to support the device of silk screen, felt or paper web

Related application

According to 35 U.S.C. § 119, the application requires to apply for A 1924/2006 and the priority of applying for A 495/2007 in the Austria that on March 29th, 2007 submitted in the Austria that on November 21st, 2006 submitted; Described application documents formerly merge as a reference at this with its full content.

Technical field

The present invention relates to a kind of device that is used for supporting the paper web of producing in silk screen or felt or the supporting paper mill in the paper mill.This supporting arrangement has backing roll that is rotatably mounted etc.

Background technology

In the paper mill, at least one silk screen is arranged and on moving direction with at least one felt of silk screen adjacency, the two is to move in the workshop at a high speed.At the section start of mobile route, paper making raw material is ejected on the silk screen.Along the mobile route of silk screen, the liquid that contains in the paper making raw material is drawn through silk screen, particularly is sucked out.The paper web of Zhi Zaoing is transferred on the felt subsequently thus, and paper web is dried on felt.Paper web breaks away from and is further processed from felt subsequently, particularly by further drying and roll-in.

Silk screen in this paper mill, felt and paper web have the width up to 12m, and silk screen, felt and paper web move in the workshop with the speed of about 30m/sec.

Being arranged in the silk screen in workshop and felt and paper web can be directed on backing roll in the process that they move in the workshop, and described backing roll extends on the whole width in workshop and locates to be mounted at their two ends.Because the length that backing roll is very big and because silk screen, felt or paper web with very high pressure support on these backing rolls, so backing roll must be formed with very big diameter, this needs very high construction funds.In addition, if the aspirator that has been silk screen or felt assignment, then very little clearance space is arranged between the backing roll because of comparing with the zone of experience swabbing action---by this space definition suction channel, and the feasible swabbing action that can not obtain to satisfy the demand, so can not use the backing roll of this class.

For this reason, can not support these zones that silk screen or felt have been arranged aspirator by this class roller.

For fear of the relevant defective of known backing roll, in order to support silk screen or felt, that also knows has provided the supporting strap (supporting strip) that extends on the width of these silk screens or felt, these supporting straps are provided with the wearing layer (wearing layer) that forms by the ceramic material plate in the side that they are assigned to silk screen or felt.This class supporting strap is advantageous, has very little size, they have very high intensity and rigidity, because they can be provided with adjacent to each other with any required very little distance, also because the suction channel of satisfying the demand can be arranged between them, and because they also play the effect of wiper cord, be used for the liquid that wiping arrives the silk screen downside in addition.

Yet, so because owing to use be shaped their manufacturing of ceramic material plate very expensive and because between they and silk screen on them or felt, have very high frictional force, so this class wiper cord is defective.Because the result of these high frictional force at first, needs driving output very high, that be used for silk screen or felt.Secondly, because these frictional force can produce very high thermic load (thermal loading) and the thermal stress that causes thus in the ceramic material plate, the ceramic material plate can break thus, so must change the ceramic material plate.In addition, ceramic material plate and the silk screen and the felt that move on these supporting straps all experience very high wearing and tearing.

Summary of the invention

Thereby, an object of the present invention is to provide a kind of supporting arrangement that is used for silk screen, felt or the paper web in paper mill, it can overcome the above-mentioned defective of hitherto known device and these class methods, and it provides a kind of device, can support at least one silk screen, at least one felt or paper web and can avoid the relevant defective of backing roll of prior art.

With considered aforementioned and other purpose,, be used for supporting the paper web that silk screen, felt and paper mill produce according to the supporting arrangement that the invention provides in a kind of paper mill.Described supporting arrangement comprises:

Bearing shell has bearing-surface;

At least one backing roll is rotatably installed in the bearing shell;

Bearing shell is configured to make backing roll to stand a fluid media (medium) (promptly such as water or the such flowable media of compressed air) in the side towards away from silk screen, felt or paper web of backing roll, is used to make backing roll and bearing-surface to separate a distance.

In other words, owing to be installed in the bearing shell and can flowing liquid towards being applied in away from least one backing roll of a side of silk screen, felt or paper web etc., be liquid or other specifically, thus and can be retained as with area supported one distance is arranged, so can realize purpose of the present invention.

Preferably, in bearing shell, leave the passage that at least one is used to supply the medium that can flow.In this case, at least one passage that is used to supply the medium that can flow can be configured with the portion that narrows down of nozzle-like, and being arranged at least one opening that is used for the medium that can flow in the bearing shell and can being configured with the zone of widening, is dome-shaped structure or groove specifically.In addition, valve---be specifically do not have return valve or check-valves---can be arranged at least one service duct that is used for medium.

According to preferred embodiment, the medium that at least one backing roll also can enable to flow puts on its end face.And then covered at least in part thing such as at least one backing roll surrounds, and it is outstanding above overcover to be applied in the position of backing roll backing roll at fluid media (medium).In this case, from axis direction, in all cases, overcover also can be arranged on the both sides of at least one backing roll etc.

According to further preferred embodiment, a plurality of backing rolls, supporting roller or fulcrum ball are set, and they are installed at least one bearing shell and they are provided with located adjacent one anotherly and also can be provided with one by one along the moving direction of silk screen, felt or paper web.In this case, at least some in backing roll, supporting roller or the fulcrum ball etc. are supported in the shared carrier that is used for bearing shell.

According to present invention further optimization embodiment, backing roll etc. also can be arranged on the both sides of silk screen, felt or paper web, and the suction channel that is connected to aspirator is between two backing rolls located adjacent one another etc.

In order to carry out the cleaning of very effective felt, be positioned at the felt both sides and further preferably relative to each other be offset along the longitudinal direction of felt with respect to roller of felt horizontal expansion etc., backing roll that is arranged in a side etc. is projected in the space between two backing rolls being arranged in opposite side etc., this means that felt moves with awave route between relative to each other backing roll etc.In this case, be felt assignment injection apparatus.

Other features that are considered to characteristics of the present invention are set forth in the claims.

Although as be used for showing implementing and having described the present invention at the device that silk screen, felt or paper web are supported in the paper mill, but the concrete form shown in never being intended to limit the invention to is because can make various modifications and structural change under the situation that does not break away from spirit of the present invention and in the scope of claim example of equal value.

Yet, in conjunction with appended accompanying drawing, structure of the present invention and method with and other purpose and advantage can from the description of subsequently specific embodiment, be better understood.

Description of drawings

Fig. 1 be in first embodiment according to the sectional view of device first embodiment of the present invention, be used to support silk screen specifically;

Fig. 2 is the sectional view according to second embodiment of device of the present invention;

Fig. 3 is the sectional view according to second embodiment of device of the present invention;

Fig. 4 is the side view according to the 3rd embodiment of device of the present invention;

Fig. 4 A-4D is the side view according to four of device of the present invention other different embodiment;

Fig. 5 is the front view according to the 4th embodiment of device of the present invention.

The specific embodiment

At first at length with reference to accompanying drawing, especially Fig. 1 shows the silk screen 1 that is supported roller 2 supportings in the paper mill.This backing roll 2 is installed in the bearing shell (bearing shell) 3.Bearing shell 3 is configured with the bearing-surface of semicircular post and has flat end face in the end.In addition, bearing shell 3 is configured with three passages or raceway groove 4, is used to provide fluid media (medium), promptly such as water or the such flowable media of compressed air.Access portal is in bearing-surface.In addition, end face also is configured with opening, and flowable medium is directed to described opening.In this case, towards place, the end of opening 5, each all is configured with ramp (taper) service duct 4, can prevent that by this ramp pollutant from immersing passage 4 at them.Flow in order to ensure supplying with to the uniform medium of backing roll 2, the opening 5 of passage 4 also all is configured with those widened sections in all cases.By this mode, can obtain backing roll 2 and be arranged in the most uniform carrying on the whole zone of bearing shell 3 at it.In addition, in all cases, check-valves (check valve) is set in service duct or does not have and to return valve.

The result who medium is put on backing roll 2 is, backing roll 2 is elevated in bearing shell 3 in the direction of arrow A, it is retained as with respect to area supported and with respect to end face by this mode a distance, thereby in fact it can not have frictionally rotation in bearing shell 3.

Because backing roll 2 also is supported in the bearing shell 3 on its whole length, so no matter its length, it can be configured less relatively diameter, and can not reduce the ability that it works thus.In this, it should be noted that backing roll 2 can extend on the whole width of silk screen 1, felt or paper web, and backing roll or other supporting members of a plurality of coaxial lines can be set on the width of silk screen, felt or paper web.

Fig. 2 shows second embodiment according to device of the present invention, and wherein backing roll 2 is configured with the overcover 7 that is arranged in the side, and described overcover 7 towards backing roll 2 bendings, this means that can limit backing roll 2 is lifted above a predetermined extent in upper area.In this case, overcover 7 is fixed on the bearing shell 3 by screw 8.And then bearing shell 3 is fixed on the tabular carrier 10, and this carrier is passed by three service ducts 4 and has three recesses 11 that rise in service duct 4 sources at the lower area of this carrier.

By using Fig. 3, in the paper mill, using this backing roll 2 as making an explanation to rolling rod (breaker roll).To rolling the paper web 13 that rod is used for aiming at cross cutter (cross-cutter).In this case, paper web 13 is directed on first deflection roll (deflection roll) 14, guides on the backing roll 2 subsequently and also guides on second deflection roll 15.In order to adjust the degree of crook of paper web 13, but the carrier vertical movement.

In Fig. 4, show three backing rolls 2 that are provided with along the moving direction of silk screen 1 or felt located adjacent one anotherly, between guide reel 2, there is suction channel 16.In this case, carrier 10 is fixed to supporter 17 by screw 10a, and this supporter 17 is configured with the suction channel 16a that is connected to aspirator.By this layout, suction force can be applied to the silk screen 1 between backing roll 2.

With reference to Fig. 4 A-4D three other embodiment are made an explanation.

In the embodiment shown in Fig. 4 A, backing roll 2 extends on the whole width in paper mill.

In the embodiment shown in Fig. 4 B, replace a backing roll, be provided with four coaxial line backing rolls 21 arranged adjacent one another, silk screen or felt are shelved on the described backing roll 21.

In the described embodiment of Fig. 4 C, each backing roll 21a is convex-shaped (crowned).

In the 4th embodiment, be shown in Fig. 4 D, replace backing roll arranged adjacent one another, one group of fulcrum ball 21b is set, described fulcrum ball arranges located adjacent one anotherly and can arrange one by one along moving direction that described ball is arranged on the width of silk screen, felt or paper web that ball carried.

Backing roll 21, backing roll 21a and backing roll 21b can be provided with located adjacent one anotherly, and also can arrange one by one along the moving direction of silk screen 1 or felt in addition.

All supporting members all assignment have side overcover 7.The layout of independently backing roll located adjacent one another etc. is favourable, because the result is that swabbing action can be applied to these independently on the silk screen or felt between the supporting member.

Thus, supporting arrangement according to the present invention is favourable, because for moving of at least one silk screen or at least one felt, only need lower driving output, because the loss of the loss of supporting member and silk screen or felt is lower on the one hand, and be used for enough spaces of suction channel because between supporting member, exist, so that can apply suction force suitable, that satisfy the demand to silk screen or felt.

Fig. 5 A shows the further development example according to the device of Fig. 4, wherein, in the both sides of felt 1a, a plurality of this backing rolls 2 is set, and has the suction channel 16 that is connected to aspirator between described backing roll.In this case, the backing roll 2 that is positioned at felt 1a one side is in all cases all with respect to the longitudinal direction skew along felt 1a of the backing roll 2 of the opposite side that is positioned at felt 1a, and in the backing roll 2 of felt 1a one side is projected into space between the backing roll 2 at the opposite side of felt 1a, this means that felt 1 moves with awave route.The backing roll 2 that is positioned at the both sides of felt 1a can preferably relative to each other be shifted, and this means the wave route that can adjust felt 1a.

For the cleaning of felt 1a, it is horizontal playpipe 9 with respect to the mobile route of felt that the orientation is set, and can be applied to felt 1a by these playpipe 9 cleaning fluids.By this layout, can realize the cleaning of very effective felt 1a.

Claims

1, the supporting arrangement in a kind of paper mill is used for the paper web that supports silk screen, felt or produce in the paper mill, and described supporting arrangement comprises:

Bearing shell has bearing-surface;

At least one backing roll is rotatably installed in the described bearing shell;

Described bearing shell is configured to make described backing roll to stand fluid media (medium) in the side towards away from silk screen, felt or paper web of described backing roll, so that described backing roll and described bearing-surface separate a distance.

2, device as claimed in claim 1, wherein, the medium that can flow of described fluid media (medium) for from the group that comprises liquids and gases, selecting.

3, device as claimed in claim 1 wherein, is left the passage that at least one is used for the accommodating fluid medium in described bearing shell.

4, device as claimed in claim 3, wherein, described at least one channels configuration has the portion that narrows down of nozzle-like.

5, device as claimed in claim 1, wherein, described bearing shell is formed with at least one opening, and fluid media (medium) flows by described opening, and described opening is formed with widened section.

6, device as claimed in claim 5, wherein, the described widened section in the described bearing shell is dome-shaped structure or groove.

7, device as claimed in claim 1, it comprises and is arranged on the valve that at least one is used for the service duct of fluid media (medium).

8, device as claimed in claim 7, wherein, described valve is a check-valves.

9, device as claimed in claim 1, wherein, described at least one backing roll is configured such that fluid media (medium) puts on its end face.

10, device as claimed in claim 1, it comprises overcover, surrounds described backing roll at least in part, and wherein, is applied at fluid media (medium) that backing roll is projected into outside the described overcover described in the position of described backing roll.

11, device as claimed in claim 10, wherein, from axis direction, in all cases, overcover is arranged on the both sides of described at least one backing roll.

12, device as claimed in claim 1, wherein, described at least one backing roll is one that is installed at least one described bearing shell and in a plurality of backing rolls, supporting roller or the fulcrum ball that are arranged in close proximity to each other.

13, device as claimed in claim 12, wherein, described a plurality of backing rolls, supporting roller or fulcrum ball are provided with one by one along the moving direction of silk screen, felt or paper web.

14, device as claimed in claim 12, wherein, at least some in described backing roll, supporting roller or the fulcrum ball are supported in the shared carrier that is used for described bearing shell.

15, device as claimed in claim 12 wherein, is provided with at least one backing roll setting on each side of silk screen, felt or paper web.

16, device as claimed in claim 12, it comprises one or many suction channels of setting out in aspirator and the position between two described backing rolls.

17, device as claimed in claim 15, wherein, the felt opposite side and relative to each other be offset with respect to the described backing roll of felt horizontal expansion longitudinal direction along felt, a corresponding described backing roll that is arranged in a side is projected in the space between two corresponding backing rolls that are arranged in opposite side, to limit the wave route of felt between backing roll relative to each other.

18, device as claimed in claim 17, it comprises the injection apparatus that is set to spray felt.