CN204097788U - For the paper forming part of fiber web machine and the module group of paper forming part - Google Patents
For the paper forming part of fiber web machine and the module group of paper forming part Download PDFInfo
- Publication number
- CN204097788U CN204097788U CN201420228455.4U CN201420228455U CN204097788U CN 204097788 U CN204097788 U CN 204097788U CN 201420228455 U CN201420228455 U CN 201420228455U CN 204097788 U CN204097788 U CN 204097788U
- Authority
- CN
- China
- Prior art keywords
- screen cloth
- forming part
- cloth unit
- paper forming
- fiber web
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F9/00—Complete machines for making continuous webs of paper
- D21F9/02—Complete machines for making continuous webs of paper of the Fourdrinier type
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/12—Making corrugated paper or board
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Abstract
The utility model relates to a kind of paper forming part (10) for fiber web machine, it has the screen cloth unit (12) that at least two are configured with the head box (20) of oneself independently, respectively, in order to form a fibrage respectively; With a continuous print lower screen cloth unit (14), the fibrage formed in described screen cloth unit (12) covers and adds as a continuous print fiber web by described screen cloth unit (12) on this lower screen cloth unit, wherein, described screen cloth unit (12) is made up of Aladdin former (13), and described lower screen cloth unit (13) does not have head box.The utility model also relates to a kind of for the module group in the paper forming part of fiber web machine, this module group comprises the paper forming part of multiple different size, the lower screen cloth unit (14) that the quantity that wherein each paper forming part has 2-8 Aladdin former (13) and a length and Aladdin former matches.
Description
Technical field
The new shape of this practicality relates to a kind of paper forming part for fiber web machine, and it has the screen cloth unit that at least two are configured with the head box of oneself independently, respectively, in order to form fibrage; With a continuous print lower screen cloth unit, on this lower screen cloth unit, the fibrage formed by it covers and adds as a continuous print fiber web by screen cloth unit.The utility model also relates to a kind of module group (Modulserie).
Background technology
In production process, every one deck of usual cardboard is all formed in an independent screen cloth unit, and then by formed also laminated.Generally, board machine has higher height because it comprises the structure of a lot of screen cloth unit.In addition, a lot of screen cloth unit is used to too increase cost of investment and the operating cost of board machine.
In the prior art, patent document WO 2012126875 A1 discloses a kind of paper forming part of board machine.In this solution, employ a kind of total, longer lower screen cloth, this lower screen cloth is formed by means of screen cloth unit each layer of cardboard.Screen cloth unit uses long screen cloth unit and nixing sieve net unit usually.Compared with traditional board machine paper forming part, utilize this structure and pass through to use continuous print lower screen cloth can reach the object of saving.This lower screen cloth has good durability.But this structure is only applicable to the speed of production about reaching 1000 ms/min, because carry out dehydration to need the regular hour in long screen cloth unit.If want to reach higher speed, long screen cloth unit just must be very large.
Utility model content
The purpose of this utility model is to provide a kind of solution than prior art better fiber web machine paper forming part, and it compares to prior art and has higher speed of production and lower cost of investment.
The purpose of this utility model is realized by a kind of paper forming part of fiber web machine, and this paper forming part has: at least two screen cloth unit being furnished with the head box of oneself independently, respectively, in order to form fibre-web layers; With a continuous print, namely unified lower screen cloth unit.Be the fibrage formed by screen cloth unit is covered screen cloth Unit Design on lower screen cloth unit and adds as a continuous print fiber web for this reason.Screen cloth unit is made up of Aladdin former (Gap-Formern), and lower screen cloth unit does not have head box.Utilize Aladdin former can realize compacter paper forming part, it can be used for obtaining higher speed of production, and can to realize with production cost lower compared with the paper forming part of prior art.There is no the lower screen cloth unit of head box only for receiving the fibre-web layers that utilizes Aladdin former to be formed and they being merged into a continuous print fiber web, and this fiber web is transported to press section.In addition, compared with lower screen cloth unit of the prior art, this lower screen cloth unit can comprise less dewatering elements, thus reduces wearing and tearing and the cost of investment of lower screen cloth unit, and the structure of lower screen cloth unit can be made better to be optimized with regard to the joint of wearing and tearing and layer.
Preferred Aladdin former is mutually the same.By the cost of investment using identical Aladdin former significantly can save paper forming part, design cost can be reduced thus.Mutually the same Aladdin former additionally can also bring the saving of the aspect such as Parts Inventory and staff training.
In one embodiment, fibrage is covered the angle be added on lower screen cloth unit by Aladdin former, and namely so-called derivation angle (Ablaufwinkel), is less than 15 °, is preferably less than 10 °.Less derivation angle can make speed of production higher, because different fibrolaminar touching angles relatively can be made like this to remain flat, and this means to process better fiber web.
In one embodiment, all upper screen cloth unit are all in the same plane, and set gradually along the traffic direction of fiber web.Utilize such structure that the height of paper forming part general structure can be made lower, thus the demand to various maintenance platform and maintenance network can be reduced.Can count from ground according to the structure height of paper forming part of the present utility model and be about 6-8 rice, the height according to the board machine of prior art then can reach 12-13 rice.
The fibrolaminar mass area ratio formed by single Aladdin former can be 30-100g/m
2, preferably lower than 60g/ ㎡.Just the product with different mass area ratio can be produced according to demand by changing fibrolaminar quantity.
In one embodiment, Aladdin former has breast roll, suction roll and slewing rollers, and the screen portion from suction roll to slewing rollers and the angle between the screen portion from breast roll to suction roll are about 10 °-80 °, is preferably 30 °-60 °.Can guarantee that being positioned at suction roll fibrage below can reliably be attached on the surface of lower screen cloth circulation in this way.
Preferred lower screen cloth unit comprises the dewatering elements for the formation of vacuum.Because the quantity of dewatering elements is relatively less, therefore can reduce the wearing and tearing of lower screen cloth and dewatering elements and brush effect on lower screen cloth, and this can also produce positive influences to energy ezpenditure.In view of the intensive dehydration occurred in Aladdin former, in lower screen cloth unit, arrange a small amount of dewatering elements is enough.
Each Aladdin former can comprise dewatering elements, this can make the fibrage that formed in Aladdin former coating be added on lower screen cloth unit before reach the aridity of 5-10%.Less dehydration is just needed like this in lower screen cloth unit.
The utility model also relates to the module group in a kind of fiber web machine paper forming part, paper forming part is wherein the paper forming part of type described above, at this, module group comprises the paper forming part of multiple different size, the lower screen cloth unit that the quantity that each paper forming part has 2-8 Aladdin former and a length and profiled member matches.
Preferred Aladdin former is mutually the same, and the size of head box and dewatering elements then needs to match with the fibrage that will produce.The function of each Aladdin former and corresponding application target can be made in this way to optimize matchingly.
Preferred Aladdin former comprises dewatering elements, this dewatering elements in order to make fibrage dewater and by vacuum load (vakuumbeaufschlaged).Can in lower screen cloth unit, make screen cloth compared with the dewatering elements of less wear thus, because dehydration now mainly occurs in Aladdin former.
In one embodiment, the traffic direction of fibrage in Aladdin former is at least contrary with the traffic direction of established fiber web in a part for its running route.Make fibrage can touch lower screen cloth unit with smooth derivation angle thus.
In one embodiment, Aladdin former has slewing rollers and deflector roll, at this, the lower screen cloth of Aladdin former is circularly set by one section between slewing rollers and deflector roll into, make it form wedge shape with the screen cloth of attaching troops to a unit in lower screen cloth unit, namely form folder district, to dewater to fiber web.The dehydration to fiber web can be strengthened thus.
More precisely, the feature according to paper forming part of the present utility model is, screen cloth unit is made up of Aladdin former, and lower screen cloth unit does not have head box.
With regard to investment, with compared with the design of prior art, utilize and can obtain more favourable paper forming part according to fiber web machine paper forming part of the present utility model, its speed of production is significantly higher than the design according to prior art, and the energy consumption of producing needed for fiber web per ton is also lower.In addition, especially when high production speed, finished product can be made to have than according to the better quality of the design of prior art by using Aladdin former.Utilizing can make speed of production more than 1200m/min according to paper forming part of the present utility model usually, even can up to 1800m/min.The design realized compared to utilizing long screen cloth according to prior art, above-mentioned these can be strengthened along with the raising of speed of production, because the weakness of long screen cloth is more obvious just at this moment by the advantage realized according to paper forming part of the present utility model.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is elaborated, several embodiment of the present utility model shown in the drawings.Wherein,
Fig. 1 entirety show observe from the side according to paper forming part of the present utility model;
Fig. 2 is the zoomed-in view of Fig. 1, wherein illustrate only the part extended over its length of an Aladdin former and lower screen cloth unit.
Detailed description of the invention
Fig. 1 shows a kind of embodiment according to paper forming part of the present utility model observed from the side.In this article, " fiber web machine " preferably refers to paper machine or board machine, particularly board machine.This embodiment illustrated in this view is for production.As shown in Figure 1, paper forming part 10 comprises the screen cloth unit 12 of lower screen cloth unit 14 and at least two sides of being located thereon.For clarity sake, eliminate most of framework of paper forming part in this view, screen cloth unit 12 and lower screen cloth unit and structure thereof all support on the frame.This framework is bearing in again on ground 100.Fiber web runs from right to left in fig. 1 and 2.
Lower screen cloth unit 14 is circulated by single screen cloth and forms, and in the cycle, the screen cloth 36 (Fig. 2) according to prior art is supportedly run to Infinite Cyclic by deflector roll, guide roller and slewing rollers 38.Lower screen cloth unit does not comprise head box, and the paper pulp stream therefore from head box is not be painted on the long screen cloth of lower screen cloth unit, but is guided on long screen cloth by established fibrage by the screen cloth unit being positioned at top.In lower screen cloth unit, the fibrage formed in upper screen cloth unit stackedly layering is placed to fiber web, will be directed to the press section of fiber web machine, drying section and possible End assemblies (Endgruppe) after this fiber web.Because lower screen cloth unit is only for combining fibrage and being transported in press section by web, therefore it can build easily.The part of screening media also reduces relative to the ratio of screen cloth length simultaneously, because lower screen cloth unit has sizable length, can meet or exceed 100 meters.The life-span of the screen cloth of this lower screen cloth unit is quite high, substantially exceeds the life-span of short lower screen cloth unit well known in the prior art.In order to dewater better, can the lower screen cloth 36 of lower screen cloth unit 14 be designed to more open than traditional forming screens.
According to the utility model, screen cloth unit 12 is made up of Aladdin former 13, and as shown in Figure 2, each Aladdin former comprises: lower screen cloth circulation 16 and upper screen cloth circulation 18; For fibrous suspension being incorporated into the head box 20 between screen cloth circulation 16 and 18; And dewatering elements 28 and 32.Aladdin former can be corresponding to the Aladdin former such as according to prior art in its structure.The material flow flowed out from head box 20 is directed to after breast roll 30, and between screen cloth circulation 16 and 18, then, fibrolaminar moisture got rid of by suction box 32 and the suction box 28 that such as can pass through dewatering elements effect.The traffic direction of fibrage in Aladdin former is contrary with the loop direction of the screen cloth of lower screen cloth unit in beginning.The fibrage be positioned on lower screen cloth unit 16 is booted down to slewing rollers 22 by vacuum furnace (such as suction roll 26) with the straight angle.Should by being exactly so-called importing angle from vacuum furnace (such as suction roll 26) to the screen portion of slewing rollers with from the angle beta that vacuum furnace 26 screen portion is forward formed.This angle beta can be 10 °-80 °, is preferably 30 °-60 °, and at this, fibrage also can be attached on the surface of lower screen cloth circulation at higher velocities after suction roll 26.Suction box can also be used as vacuum unit.Slewing rollers 22 guide lower screen cloth circulation 16 and fibrage to arrive on the screen cloth 36 of lower screen cloth unit 14 to derive angle α.Derive angle α to be formed between the screen cloth 36 of lower screen cloth unit 14 and the lower screen cloth circulation between slewing rollers 22 and deflector roll 24.Preferably this derivation angle is 15 ° to the maximum, preferably lower than 10 °, at this, fibrage is touched on the screen cloth of lower screen cloth unit with flat angle, touch more precisely and be positioned on the fibrage on this screen cloth, enable fibrage remain intact thus harmless, and also can not rupture when high production speed.Due to the derivation angle that this is flat, on Some routes between slewing rollers 22 and deflector roll 24, the lower screen cloth circulation 16 of Aladdin former 13 forms folder district together with the screen cloth 36 of lower screen cloth unit 14, in the region in this folder district, in lower screen cloth circulation, one or more suction box 28 is set, these suction boxs make fibrage remain on screen cloth 36, and the circulation of the lower screen cloth of upper screen cloth unit is separated with fibrolaminar surface.The design Zhong Jia district according to prior art is obviously longer than in this folder district.
Utilize Aladdin former 13, can realize intensive dehydration in the starting stage that paper is shaping, at this, the fibrolaminar material concentration arriving lower screen cloth unit 14 from Aladdin former 13 is 5-10%.Like this, lower to the requirement of the water separation capability of lower screen cloth unit 14, thus make lower screen cloth unit 14 have the dewatering elements 28 and 33 more less than the lower screen cloth unit according to prior art.Dewatering elements can by several suction boxs or metal forming case (
) form, utilize them can to the intensive dehydration of fiber web.Due to the negligible amounts of dewatering elements, therefore the friction that is subject to of screen cloth is also less, and this means for less screening media and lower energy consumption screen cloth runs.
Comprise at least two Aladdin formers 13 according to paper forming part of the present utility model, utilize these Aladdin formers can form fibrage for fiber web to be produced.Generally, it is different for being in the fibrolaminar characteristic in contacting with each other.Such as in folding box plate, fiber web is made up of triplex board, and wherein, bottom is the fibrage imparting product intensity, intermediate layer (Einlage) is fibrous material that is cheap as far as possible and that can fill, and top layer is made up of the fibrous material that can realize good print to the full extent.In some cases, fibrage adjacent one another are on fiber web thickness direction can be made up of identical material, and like this, such as, when producing the thick like this intermediate layer for cardboard, this intermediate layer can not be made with an Aladdin former.If the weight per unit area of final products (i.e. cardboard) is such as 300g/ ㎡, the 80g/ ㎡ of bottom and the 50g/ ㎡ of top layer is removed at this, two Aladdin formers can be used to manufacture intermediate layer, each intermediate layer is 85g/ ㎡, and the characteristic in these two intermediate layers is identical like this.
According to the utility model, Aladdin former is composition module group in paper forming part, and at this, this module group comprises 2-8 Aladdin former.The fibrolaminar quantity of the fiber web that will produce and the characteristic of finished fiber web can be affected by the quantity changing Aladdin former.Aladdin former is mutually the same in its structure; Only have the planning of its head box and dewatering elements particularly to depend on and which Aladdin former will be utilized to form fibrage.Independent Aladdin former preferably can be utilized to make the fibrage of weight per unit area for 30-100g/ ㎡.When adopting module group, only need give training for an Aladdin former, because all Aladdin formers are mutually the same operating personnel.Parts Inventory can be reduced in addition, because same spare part is applicable to all Aladdin formers.
When using Aladdin former, can carry out intensive dehydration from the beginning, therefore the structure length of Aladdin former on the traffic direction of fiber web can be significantly smaller than the length of the long screen cloth unit according to prior art.The length of each Aladdin former such as can be 12 meters now, and the length of corresponding long screen cloth unit is 20 meters.This means, the length of the technical scheme be shorter than according to prior art can be built as according to paper forming part of the present utility model.
When using according to paper forming part of the present utility model, multiple different distortion can be selected to combine.If necessary, part Aladdin former can be made to shut down, then can produce the fiber web with thinner layer or less layer.The width of the fiber web utilizing this paper forming part to make can be such as 6 meters or 7 meters, but also can change between 2-11 rice according to demand.
Claims (9)
1. the paper forming part (10) for fiber web machine, it has: at least two screen cloth unit (12) being configured with the head box (20) of oneself independently, respectively, in order to form a fibrage respectively; With a continuous print lower screen cloth unit (14), the fibrage formed in described screen cloth unit (12) covers and adds as a continuous print fiber web by described screen cloth unit (12) on this lower screen cloth unit, it is characterized in that, described screen cloth unit (12) is made up of Aladdin former (13), and described lower screen cloth unit (13) does not have head box.
2. paper forming part as claimed in claim 1, it is characterized in that, described Aladdin former (13) is mutually the same.
3. paper forming part as claimed in claim 1 or 2, it is characterized in that, the derivation angle α between described screen cloth unit (12) and described lower screen cloth unit (14) is less than 15 °.
4. paper forming part as claimed in claim 1 or 2, it is characterized in that, the derivation angle α between described screen cloth unit (12) and described lower screen cloth unit (14) is less than 10 °.
5. paper forming part as claimed in claim 1, it is characterized in that, all screen cloth unit (12) are in the same plane, and set gradually along the traffic direction of fiber web.
6. paper forming part as claimed in claim 1, it is characterized in that, described lower screen cloth unit (14) comprises dewatering elements (28,33).
7. paper forming part as claimed in claim 1, it is characterized in that, described Aladdin former (13) has breast roll (30), suction roll (26) and slewing rollers (22), from described suction roll (26) to the screen portion of described slewing rollers (22) and from described breast roll (30) to the angle beta the screen portion of described suction roll (26) be 10 °-80 °.
8. paper forming part as claimed in claim 7, it is characterized in that, from described suction roll (26) to the screen portion of described slewing rollers (22) and from described breast roll (30) to the angle beta the screen portion of described suction roll (26) be 30 °-60 °.
9. the module group in the paper forming part (10) of fiber web machine of attaching troops to a unit, this paper forming part (10) is the paper forming part according to any one of claim 1 to 8, it is characterized in that, described module group comprises the paper forming part of multiple different size, the lower screen cloth unit (14) that the quantity that wherein each paper forming part has 2-8 Aladdin former (13) and a length and described Aladdin former matches.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20134115 | 2013-05-13 | ||
| FI20134115 | 2013-05-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204097788U true CN204097788U (en) | 2015-01-14 |
Family
ID=50778683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420228455.4U Expired - Fee Related CN204097788U (en) | 2013-05-13 | 2014-05-06 | For the paper forming part of fiber web machine and the module group of paper forming part |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204097788U (en) |
| DE (1) | DE202014101877U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107747250A (en) * | 2017-11-16 | 2018-03-02 | 浙江华宇纸业有限公司 | A kind of wet end system of paper machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019121068A1 (en) | 2019-08-05 | 2020-07-02 | Voith Patent Gmbh | Device for producing a multi-layer fibrous web |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011005747A1 (en) | 2011-03-18 | 2012-09-20 | Voith Patent Gmbh | Sheet binding device |
-
2014
- 2014-04-22 DE DE201420101877 patent/DE202014101877U1/en not_active Expired - Lifetime
- 2014-05-06 CN CN201420228455.4U patent/CN204097788U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107747250A (en) * | 2017-11-16 | 2018-03-02 | 浙江华宇纸业有限公司 | A kind of wet end system of paper machine |
| CN107747250B (en) * | 2017-11-16 | 2019-05-03 | 浙江华宇纸业有限公司 | A kind of wet end system of paper machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202014101877U1 (en) | 2014-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20180506 |