CN106661836A - Machine for the production of a fiber web - Google Patents
Machine for the production of a fiber web Download PDFInfo
- Publication number
- CN106661836A CN106661836A CN201580037203.0A CN201580037203A CN106661836A CN 106661836 A CN106661836 A CN 106661836A CN 201580037203 A CN201580037203 A CN 201580037203A CN 106661836 A CN106661836 A CN 106661836A
- Authority
- CN
- China
- Prior art keywords
- drying
- pressure
- machine
- equal
- cloth width
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000000835 fiber Substances 0.000 title abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 86
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 claims description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000001125 extrusion Methods 0.000 claims description 23
- 229910001018 Cast iron Inorganic materials 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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
- D21F9/003—Complete machines for making continuous webs of paper of the twin-wire 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
- D21F11/14—Making cellulose wadding, filter or blotting paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/0209—Wet presses with extended press nip
- D21F3/0218—Shoe presses
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/021—Construction of the cylinders
Landscapes
- Paper (AREA)
- Sanitary Thin Papers (AREA)
Abstract
The invention relates to a machine (1) for the production of a fiber web (2), in particular a tissue or hygienic paper web or a fiber web (2) which is smooth on one side, having at least one pressure nip (10) which is formed between a shoe press unit (5), comprising a press shoe (6), and a drying cylinder (7), through which pressure nip (10) a water-absorbing carrier belt (11), a water-impermeable press belt (12) and the fiber web (2) are guided, wherein the dying cylinder (7) comprises a cylindrical part (8) and in each case one end cover (9) on the end side. The machine (1) according to the invention is characterized in that the cylindrical part (8) of the drying cylinder (7) consists at least partially of steel.
Description
Technical field
The present invention relates to a kind of fiber smooth for manufacturing fibrous cloth width, especially tissue web or health paper web or one side
The machine of web, it has at least one squeezing gap constituted between the shoe press unit and drying including pressure shoes,
Supporting strip, fluid-tight expelling belt and the fibrous cloth width for absorbing water is directed through the squeezing gap, wherein, drying includes
Cylindrical parts and side respectively include end cap.The invention further relates to a kind of be used to manufacture fibrous cloth width, especially thin paper
The method of the smooth fibrous cloth width of width or health paper web or one side.
Background technology
Such machine is known.With regard to this, the A1 of patent document DE 19860687 for example describe a kind of machine,
It has the squeezing gap for making tissue web dehydration constituted between shoe press unit and drying.The patent document
Suggestion, using short pressure shoes, so as in the maximum allowable linear load for single cylinder (Yankeezylinder) for 90kN/m's
In the case of can in the nip reach higher maximum squeeze pressure.Thus realize after shoe press unit it is higher
Dry weight content.
The content of the invention
The technical problem to be solved is, in terms of drying efficiency and economy to such machine and
Method for manufacturing this fibrous cloth width is improved.
The technical problem is used to manufacture fibrous cloth width, especially tissue web or health paper web by one kind or one side is smooth
Fibrous cloth width machine solve, its have at least one including pressure shoes shoe press unit and drying between constitute
Squeezing gap, supporting strip, fluid-tight expelling belt and the fibrous cloth width for absorbing water is directed through the squeezing gap, wherein,
Drying includes cylindrical parts and includes end cap respectively in side.According to present invention provide that, the cylindrical parts of drying
It is formed at least partly of steel.
By using the steam-heated drying being formed from steel, can in combination bring up to up to fibre with shoe press unit
The hot-fluid of dimension web, the dehydration more efficient so as to realize drying than being made of cast iron.
Drying bears in operation mechanical load and heat load.Mechanical load is mainly by the steam pressure inside drying
Extruding with shoe press unit is constituted.Different heat of the heat load due to heating and between drying center and two marginal zones
Condition is produced.Cast iron is not used using steel, can in the case where size design meets intensity requirement the less peace of needs
Full property ancillary method or expense.The higher mechanical load-bearing capacity of thus obtained steel drying is realized by shoe press
The more High Linear power that unit is implemented.Additionally, compared with the cylinder being made of cast iron, being made by the internal pressure of steam-heated drying cylinder
Into mechanical load identical in the case of, wall thickness can be designed to thinner.Which results in the hot-fluid of less thermal resistance and Geng Gao；Separately
On the one hand the steam pressure inside drying can also be improved.It is possible thereby to realize higher temperature.This again results in higher
The more preferable dehydration of hot-fluid and fibrous cloth width.Therefore according to the present invention it is possible to reach higher dry weight after through squeezing gap
Content, and improve paper products yield by improving machine speed.
The machine is particularly suited for manufacturing the smooth paper of light weight papers, such as thin paper or one side.Weight per unit area or base
This weight is less than 45g/m2, especially less than 30g/m2, preferably smaller than 25g/m2In the range of.Preferred weight per unit area model
Enclose for example in 11g/m2With 45g/m2Between.A drying is worthily provided only with for the two stationeries are other.In thin paper
In, drying has for making the corrugated corrugation scraper plate of fibrous cloth width.Higher specific volume is realized by compression or upsetting pressure
(spezifisches Volumen) and higher pliability.Corrugation is not provided with during the smooth paper of manufacture one side to scrape
Plate, but cleaning balde is provided with, keep cleaning to the drying surface for making cylindrical parts.Drying surface is designed to non-
Ordinary light slide, and preferably have coating, for example by made by chromium coating.Thus improve fibrous cloth width towards drying surface
The smoothness of side.
Drying can also have the cylindrical parts by made by metal material or ceramic material to apply outward to manufacture thin paper
Layer.
The supporting strip for absorbing water can be designed as felt.
Specify in a kind of favourable design of the present invention, the squeezing gap for being formed has along web direct of travel
Less than the length of 125mm, especially less than 80mm, preferably smaller than 70mm, especially less than 60mm.It is possible thereby in given max line
Property power in the case of squeezing gap in reach higher maximum squeeze pressure.Additionally, squeezing most greatly enhancing for gap by regulation
Degree, has rising drastically and decline drastically along pressure history of the web direct of travel in squeezing gap length, from
And make fibrous cloth width only temporarily be loaded higher maximum squeeze pressure.Thus fibrous cloth width and is not compressed.Specific volume by
This is kept approximately constant.
Pressure shoes presses to drying to constitute squeezing gap.Here advantageously, pressure shoes by metal, especially by bronze or
Aluminium is made.Thus achieve in the uniform squeeze pressure curve transversely and on web direct of travel relative to machine
(Pressdruckprofil).This further causes more preferable humidity horizontal curve in fibrous cloth width
And humidity Vertical Curve (Feuchtequerprofile)And hence improve obtained fibre
The quality of dimension web.
In actual embodiment, shoe press unit is extended transversely respectively including at least two and advanced along web
The extrusion element that direction is adjacently positioned, so that pressure shoes is pressed into drying.It is soft that extrusion element can for example be designed as respectively pressure
Pipe.The pressure hose preferably can independently of each other be loaded pressure.It is possible thereby to make the squeeze pressure along web direct of travel
Curve match with given manufacturing condition.Maximum squeeze pressure itself for example can be exactly set or adjusted and its in material
Position on width direct of travel.Therefore for example second along the observation of web direct of travel is made in order to reach higher dewatering efficiency
Extrusion element is more strongly pressed than the first press element.To transversely with web direct of travel on squeeze pressure curve
It is favourable to be accurately set or adjusted especially in higher heat flow density (such as by being realized using the drying being formed from steel)
's.
Worthily, extrusion element extends substantially in the cross machine direction on whole squeezing gap, but at least in fibrous cloth width width
Extend in the region of degree.The extra extrusion element in the fringe region in squeezing gap can be saved.
According to another preferred embodiment, pressure shoes at least has average pressure shoes thickness in the region in squeezing gap,
The pressure shoes thickness is equal to or less than 20mm, is especially equal to or less than 18mm, preferably equal to or smaller than 16mm.This has the advantage that
Be, squeeze pressure curve transversely, it is especially uniform in the fringe region in squeezing gap and consistently extend.It is possible thereby to compensate
For example due to caused by the different thermal conditions between steam pressure and drying center and two marginal zones in edge region
Drying geometry deviation.Being designed as flexible easily bent pressure shoes can be close to drying in the running of machine
Profile.Because pressure shoes is adapted with the diameter of drying, pressure shoes thickness is not fully constant on web direct of travel.By
This, center ratio of such as pressure shoes thickness in squeezing gap is appreciably thinner at the section start in squeezing gap and end.Therefore, averagely
Pressure shoes thickness is the mean value of the pressure shoes thickness value at section start, middle and the end of pressure shoes.
Advantageously, pressure shoes at least has average pressure shoes thickness, described average pressure shoes thickness etc. in the region in squeezing gap
In or more than 10mm, be especially equal to or more than 12mm, preferably equal to or greater than 14mm.That is pressure shoes has minimum thickness,
On the one hand the minimum thickness realizes the uniform squeeze pressure curve along web direct of travel on whole squeezing gap.By
This minimum bending strength for obtaining ensure that constant position of the squeezing gap end on web direct of travel and in squeezing gap
The constant position in overall width transversely.By the clear and definite border for squeezing gap end, can make at press house gap end
Squeeze pressure realize drastically and pressure drop constant on width.Can avoid or be at the least, significantly reduced in squeezing gap
At end due to absorb water supporting strip caused by fibrous cloth width moisture regain.Thus dewatering efficiency is significantly increased.By compared with
Big and constant pressure drop on width can be avoided in fibrous cloth width due to the uneven humid zone for getting damp again and causing.
In another kind of actual design, the end cap on the side of the cylindrical parts of drying is arranged in by steel
Into and the cylindrical parts bolt connection with drying or welding, or end cap be made of cast iron and with the cylinder of drying
Shape part bolt connection.
In a preferred embodiment, drying is configured with for loading steam and/or hot-air to fibrous cloth width
Drying hood.
Drying worthily has the diameter more than 3m, especially greater than 4m, and inner space can be loaded pressure etc.
In or more than 0.5MPa (5bar), be especially equal to or more than 0.6MPa's (6bar), preferably equal to or greater than 0.7MPa (7bar)
Steam.
Drying can so be loaded steam in the running of machine, so that cylindrical parts are on outside
Surface temperature is higher than 100 DEG C after passing through corrugation scraper plate or unloading fibrous cloth width, is especially more than 120 DEG C.This temperature levels
The viscosity of the water being included in fibrous cloth width in squeezing gap is reduced into optimal value.This point combines the circle of steel drying
Longer residence times of the relatively low thermal resistance and fibrous cloth width of cylindrical part in the squeezing gap determined by pressure shoes geometry, energy
It is enough to realize fibrous cloth width dehydration improve and effective.Therefore, with known with suction pressure roller rather than shoe press unit
And the machine with the drying being made of cast iron is compared, can be under identical machine speed real after squeezing gap
Now higher fibrous cloth width dry weight content.Thus dry weight content can also be made to keep constant, and is improved machine speed and thus carried
High yield.
According to a kind of preferred improved procedure, end cap has the separator of calorifics on outside and/or inner side or says definitive
Warmware.The insulation reduces thermal loss and improves energy balance.
In alternatively possible design, shoe press unit be configured with including control or adjustment unit for beating
The safety device in squeezing gap is driven, wherein, the control or adjustment unit lack fibrous cloth width in the supporting strip for absorbing water
In the case of promote extrusion element inactivate or deactivate and/or promote shoe press unit to turn on or turn to.Can avoid to absorbing
The damage or harmful effect of the supporting strip of water or fluid-tight expelling belt.
In addition it is also feasible that available be equal to or more than 90kN/m, be especially equal to or more than 110kN/m, be preferably equal to
Or pressure shoes is pressed to drying by the linear force more than 120kN/m.
The size of drying is so designed in a kind of preferred design, so that drying can be by 60kN/m extremely
Linear force loading between 140kN/m, between preferred 60kN/m to 120kN/m.
Drying has fluting preferably on the inner side of cylindrical parts, for improving mechanical stability and improving heat
Stream.
Worthily, the wall thickness of the cylindrical parts of drying in the case where optional fluting is not considered less than 55mm, excellent
Choosing is less than or equal to 45mm.
The present invention a kind of design in may and advantageously, squeezing gap in produce along web traveling side
To pressure curve linear force less than or equal to 140kN/m, have in the case of especially less than or equal to 120kN/m and be more than
2MPa, especially greater than 3MPa and the preferably greater than maximum pressure of 4MPa.
Particularly advantageously, end of the pressure curve along web direct of travel for producing in squeezing gap in squeezing gap
There is the pressure drop more than 800kPa/mm, especially greater than 1000kPa/mm, preferably greater than 1100kPa/mm at tail.This reduction
Or avoid the moisture regain of fibrous cloth width that the supporting strip due to absorbing water is caused.
In a kind of actual possible design of the present invention, machine includes head box, circular outer net (Au β
The supporting strip of ensieb), circular absorption water, wherein, the head box is by fibrous substance suspension with jet or the shape of beam
Formula is released between the supporting strip of circular outer net and circular absorption water, and outer net and is absorbed the supporting strip of water and partly twined
Around format roll, and wherein, fibrous substance suspension is dehydrated in winding zone, and the fibrous cloth width for being formed is absorbing water
Supporting strip on horizontally (liegend) be directed through suction roll and through squeezing gap, so as to further dehydration.This can be special
Fibrous cloth width is not simply and efficiently manufactured.
The technical problem also passes through to be used to manufacture fibrous cloth width, especially tissue web or health paper web or one side is smooth
The method of fibrous cloth width is solved.By the fibrous cloth width and absorb water supporting strip and fluid-tight expelling belt be directed through to
A few squeezing gap being formed between shoe press unit and drying including pressure shoes, wherein, the drying includes
Cylindrical parts and side respectively include end cap.According to present invention provide that, the cylindrical parts of drying are at least partly by steel
Make.
Description of the drawings
Other technical characteristics and advantage of the present invention below in conjunction with accompanying drawing description of a preferred embodiment by being given.In accompanying drawing
In：
Fig. 1 illustrates the machine for manufacturing tissue web or health paper web of the invention；
Fig. 2 illustrates the local with shoe press unit and drying of Fig. 1 with simplified view；
Fig. 3 illustrates pressure shoes and in squeezing gap along the squeeze pressure curve of web direct of travel with simplified view.
Specific embodiment
Fig. 1 is with known crescent former (Crescent-Former) to be illustrated machine of the invention 1.
Suction pressure roller common in other cases is by the replacement of shoe press unit 5.It is configured with for drying 7 and is commonly used to manufacture corrugation
The corrugation scraper plate (Kreppschaber) of thin paper.
The machine 1 is applied to the smooth paper with less improvement of manufacture one side.In the mistake of the smooth paper of manufacture one side
The scraper plate that wrinkles for example is not provided with journey, it is replaced by cleaning balde, so that the drying surface for making cylindrical parts 8 keeps clear
It is clean.Drying surface is designed to be unusual light and preferably has coating, the coating for example by made by chromium.In the case,
Made by fibrous cloth width 2 departed from drying surface 8 by freely drawing.
Machine of the invention 1 includes head box, and the head box is by fibrous substance suspension with mode of jet release
Between the supporting strip 11 of circular outer net and circular absorption water.The supporting strip 11 for absorbing water is designed as felt or felt.Outer net
With the partly Wrapping formed roller of felt 11.Fibrous substance suspension is dehydrated in winding zone, and the fibrous cloth width 2 for being formed
Suction roll is directed through horizontally in supporting strip in other words felt 11 and through squeezing gap 10, to be further dehydrated.Pressure
Squeeze gap 10 to be made up of shoe press unit 5 and drying 7 including pressure shoes 6.After squeezing gap 10, fibrous cloth width
2 are passed on the hotter surface of the cylindrical parts 8 of steam-heated drying 7, and are dried.The part of drying 7
Ground is surround by drying hood 14, and the drying hood is used to load fibrous cloth width 2 using steam and/or hot-air.Subsequently, it is fine
Dimension web 2 is removed by corrugation scraper plate corrugation from the surface of the cylindrical parts 8 of steam-heated drying 7, and
And by the measurement frame for measuring the mass parameter of fibrous cloth width 2 to rolling piece conveying.Shoe press unit 5 includes two difference
Transversely 4 extend and the extrusion element 13.1,13.2 that is arranged in juxtaposition along web direct of travel 3, so as to by pressure shoes 6 towards drying 7
Pressing.Extrusion element 13.1,13.2 is designed as pressure hose.The pressure hose can independently of each other be loaded pressure.By
This can make the squeeze pressure curve along web direct of travel 3 match with given manufacturing condition.For example can squeeze to maximum
Pressure pressure itself and its position on web direct of travel 3 are set or adjusted exactly.Therefore for example in order to realize compared with
High dewatering efficiency, makes the press element 13.1 of the second extrusion element 13.2 to the first along the observation of web direct of travel 3 higher
Press strongly.Accurate adjustment to transversely 4 and the squeeze pressure curve of web direct of travel 3 is close particularly with higher hot-fluid
It is favourable for degree (such as can realize higher heat flow density by using the drying 7 being formed from steel).It is steam-heated
Drying 7 includes respectively end cap on side.In this example embodiment, the cylindrical parts 8 and two of drying 7
Individual end cap 9 is all formed from steel.End cap is welded with cylindrical parts 8.Thus achieve higher hot-fluid.End cap 9 is on the outside
It is provided with insulation.The insulation reduces thermal loss and improves energy balance.Drying 7 has the diameter of 4.8m,
And inner space can on-load pressure for 0.7MPa (7bar) steam.Cylindrical parts 8 contribute to Wrinkling
External coating.Squeezing gap 10 length with 55mm on web direct of travel 3.It is possible thereby in the feelings of given maximum linear power
Higher maximum squeeze pressure is reached under condition in squeezing gap 10.Pressure shoes 6 presses to drying to constitute squeezing gap 10
7.Pressure shoes 6 is made by metal, especially by bronze or aluminium, and with the surface of Jing polishings.It is possible thereby to relative to machine 1
Uniform squeeze pressure curve is realized on horizontal 4 and on web direct of travel 3.Additionally, also realizing in fibrous cloth width 2
Improved humidity horizontal curve and humidity Vertical Curve, and the quality of fibrous cloth width 2 made by hence improving.In order to improve
Safety in operation, be shoe press unit 5 be configured with including control or adjustment unit safety device, for open squeezing gap
10, wherein, the control or adjustment unit promote pressure shoes in the case of shortage fibrous cloth width 2 in the supporting strip 11 for absorbing water
Extrusion element 13.1,13.2 inactivates or deactivates and/or shoe press unit 5 is turned on or is turned to.It is possible thereby to avoid to inhaling
Receive the supporting strip 11 of water and the damage or harmful effect of fluid-tight expelling belt 12.
Fig. 2 shows the local with shoe press unit 5 and drying 7 of Fig. 1 with simplified view.Shoe press list
Unit 5 includes pressure shoes 6 and extrusion element 13.1,13.2, and the extrusion element is supported on machine with side that is wide and being bearing in machine 1
On support in edge region.The extrusion element is surrounded by circular fluid-tight expelling belt 12.Fluid-tight expelling belt 12
Inner space seals relative to external environment condition.Two extrusion elements 13.1,13.2 are distinguished transversely 4 extensions and are advanced in web
It is adjacent or arrange side by side on direction 3.The extrusion element 13.1,13.2 presses to pressure shoes 6 to constitute squeezing gap 10
Drying 7.Extrusion element 13.1,13.2 is designed as pressure hose.Thus transversely 4 the company of defining on gap 10 is squeezed whole
Continuous extruding force.Pressure hose can on-load pressure independently of each other.Thus the squeeze pressure curve along web direct of travel 3 is made
Match with given manufacturing condition.Maximum squeeze pressure itself and its position on web direct of travel 3 can for example be made
It is accurately adjusted.Therefore for example the second extruding unit along the observation of web direct of travel 3 is made in order to reach higher dewatering efficiency
The extrusion element of part 13.2 to the first 13.1 is more strongly pressed.
Fig. 3 illustrates the pressure shoes 6 in the machine 1 according to Fig. 1 with simplified view and along web direct of travel 3 in squeezing gap
Squeeze pressure curve in 10.Pressure shoes 6 has average pressure shoes thickness 15 in the region in squeezing gap 10, and the average pressure shoes is thick
Degree is less than 20mm.Have an advantage in that, transversely 4 squeeze pressure curve it is especially uniform in the fringe region in squeezing gap 10 and
Consistently extend.For example due to the different calorifics between steam pressure and drying center and two marginal zones in edge region
Thus the impact of the geometry deviation of the drying 7 caused by condition can be compensated.Being designed as flexible easily bent pressure shoes 6 can
To press close to the profile of drying in the running of machine, therefore the squeeze pressure curve on horizontal 4 is constant.Due to
Pressure shoes 6 matches with the diameter of drying 7, so pressure shoes thickness 15.1,15.2 is not fully permanent on web direct of travel 3
It is fixed.Thus for example squeezing gap 10 center pressure shoes thickness ratio squeezing gap 10 section start and end at slightly more
It is thin.Therefore, average pressure shoes thickness is the pressure shoes thickness 15.1,15.2 at section start, center and the end for squeezing gap 10
Value mean value.The pressure shoes has the average pressure shoes thickness 15 equal to or more than 10mm in the region in squeezing gap 10.
That is pressure shoes 6 has minimum thickness, and on the one hand the minimum thickness is realized along web direct of travel 3 in whole press house
Uniform squeeze pressure curve in gap.Thus obtained minimum bending strength ensure that squeezing gap end in web traveling side
To the constant position on 3 and the constant position on squeezing gap transversely 4 overall width.By squeezing the bright of gap end
True boundary, under realizing strongly and constant on width pressure of the squeeze pressure at the end in squeezing gap 10
Drop.Can avoid or at least substantially reduce at the end in squeezing gap 10 due to absorbing the fiber caused by the supporting strip 11 of water
The moisture regain of web 2.Thus dewatering efficiency is significantly improved.Can be avoided by higher and constant on width pressure drop
Due to the humid zone caused by uneven moisture regain in fibrous cloth width.
The pressure curve along web direct of travel 3 is schematically shown on pressure shoes 6.Squeeze pressure rising in pressure shoes 6
There is gentle rising at beginning, and maximum squeeze pressure is reached when at the end that will reach pressure shoes 6, the squeeze pressure
Sharp decline very much at end.By the minimum thickness and fashion of extrusion of pressure shoes 6, in the horizontal width along squeezing gap 10
Consistently reach more than 1000kPa/mm pressure drops on degree.This causes the fiber material that the supporting strip 11 due to absorbing water is caused
2 moisture regain is minimized or is avoided.In this embodiment, squeezing gap in formed on web direct of travel
Pressure curve has the maximum pressure of 4.5MPa in the case where linear force is 120kN/m.
List of numerals
1 machine
2 fibrous cloth widths
3 web direct of travels
4 is horizontal
5 shoe press units
6 pressure shoes
7 dryings
The cylindrical parts of 8 dryings
9 end caps
10 squeezing gaps
11 supporting strips for absorbing water
12 fluid-tight expelling belts
13.1 extrusion elements
13.2 extrusion elements
14 drying hoods
15 average pressure shoes thickness
15.1 maximum pressure shoes thickness
15.2 minimum pressure shoes thickness
Claims (19)
1. it is a kind of to be used to manufacture the smooth fibrous cloth width (2) of fibrous cloth width (2), especially tissue web or health paper web or one side
Machine (1), the machine has at least one to be formed between shoe press unit (5) and drying (7) including pressure shoes (6)
Squeezing gap (10), absorb the supporting strip (11) of water, fluid-tight expelling belt (12) and fibrous cloth width (2) and be directed through institute
Squeezing gap (10) is stated, wherein, the drying (7) includes respectively end cap (9) including cylindrical parts (8) and in side,
Characterized in that, the cylindrical parts (8) of the drying (7) are at least partly formed from steel.
2. machine (1) according to claim 1, it is characterised in that the squeezing gap (10) for being formed is in web traveling side
There is the length less than 125mm, especially less than 80mm, preferably smaller than 70mm, especially less than 60mm on (3).
3. machine (1) according to claim 2, it is characterised in that in order to form squeezing gap (10), the pressure shoes (6)
Drying (7) is pressed to, and the pressure shoes is made by metal, especially by bronze or aluminium.
4. machine (1) according to any one of the claims, it is characterised in that shoe press unit (5) bag
At least two extrusion elements (13.1,13.2) that respectively transversely (4) extend and are disposed adjacent in fibrous cloth width (2) are included,
For pressure shoes (6) to be pressed into drying (7).
5. machine (1) according to claim 4, it is characterised in that the extrusion element (13.1,13.2) is transversely (4)
Extend on whole squeezing gap (10).
6. machine (1) according to any one of the claims, it is characterised in that the pressure shoes (6) is at least in squeezing
There is average pressure shoes thickness (15), the pressure shoes thickness is equal to or less than 20mm, is especially equal to or little in the region in gap (10)
In 18mm, preferably equal to or smaller than 16mm.
7. machine (1) according to any one of the claims, it is characterised in that the pressure shoes (6) is at least in squeezing
There is average pressure shoes thickness (15), the average pressure shoes thickness is equal to or more than 10mm, is especially equal in the region in gap (10)
Or more than 12mm, preferably equal to or greater than 14mm.
8. machine (1) according to any one of the claims, it is characterised in that be arranged in the cylinder of drying (7)
End cap (9) on the side of shape part (8) is formed from steel and cylindrical parts (8) bolt connection with drying (7) or weldering
Connect, or the end cap (9) be made of cast iron and with the cylindrical parts bolt connection of drying.
9. machine (1) according to any one of the claims, it is characterised in that the drying (7) is configured with use
In the drying hood (14) that steam and/or hot-air are loaded for fibrous cloth width (2).
10. machine (1) according to any one of the claims, it is characterised in that the drying (7) is with being more than
The diameter of 3m, especially greater than 4m, and inner space can be equal to or more than 0.5MPa (5bar), especially be equal to or big with pressure
In the steam loading of 0.6MPa (6bar), preferably equal to or greater than 0.7MPa (7bar).
11. machines (1) according to any one of the claims, it is characterised in that the cylinder of the drying (7)
Part (8) is with coating.
12. machines (1) according to any one of the claims, it is characterised in that the shoe press unit (5) is matched somebody with somebody
The safety device including control or adjustment unit is equipped with, for opening squeezing gap (10), wherein, the control or adjustment unit
Promote extrusion element (13.1,13.2) to deactivate in the case of lacking fibrous cloth width (2) in the supporting strip (11) for absorbing water and/
Or promote shoe press unit (5) to turn to.
13. machines (1) according to any one of the claims, it is characterised in that can utilize and be equal to or more than
Pressure shoes is pressed to drying by 90kN/m, the linear force especially equal to or more than 110kN/m, preferably equal to or greater than 120kN/m
(7)。
14. machines (1) according to any one of the claims, it is characterised in that produce in squeezing gap (10)
The pressure curve along web direct of travel (3) squeezing gap (10) end be in linear force less than or equal to 140kN/m,
Have in the case of especially less than or equal to 120kN/m more than 2MPa, especially greater than 3MPa and the preferably greater than maximum of 4MPa
Pressure.
15. machines (1) according to any one of the claims, it is characterised in that produce in squeezing gap (10)
The pressure curve along web direct of travel (3) have more than 800kPa/mm, especially greater than at the end of squeezing gap (10)
The pressure drop of 1000kPa/mm, preferably greater than 1100kPa/mm.
16. machines (1) according to any one of the claims, it is characterised in that the end cap (9) has on outside
There is insulation.
17. machines (1) according to any one of the claims, it is characterised in that the machine (1) includes stream slurry
Fibrous substance suspension is released in case, the head box supporting of circular outer net and circular absorption water in the form of jet
Between band (11), and the outer net and supporting strip (11) the partly Wrapping formed roller of water is absorbed, and wherein, fibrous material
Suspension is dehydrated in winding zone, and the fibrous cloth width (2) for being formed is led horizontally in the supporting strip (11) for absorbing water
Draw by suction roll and through squeezing gap (10), so as to further dehydration.
18. machines (1) according to claim 17, it is characterised in that the supporting strip (11) for absorbing water is designed as felt.
19. one kind are used to manufacture the smooth fibrous cloth width (2) of fibrous cloth width (2), especially tissue web or health paper web or one side
Method, wherein, by the fibrous cloth width (2) and absorb water supporting strip (11) and fluid-tight expelling belt (12) guiding wear
At least one squeezing gap (10) being formed between shoe press unit (5) and drying (7) including pressure shoes (6) is crossed, its
In, the drying (7) includes respectively end cap (9) including cylindrical parts (8) and in side, it is characterised in that drying (7)
Cylindrical parts (8) be at least partly formed from steel.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014213512.5A DE102014213512A1 (en) | 2014-07-11 | 2014-07-11 | Machine for producing a fibrous web |
| DE102014213512.5 | 2014-07-11 | ||
| PCT/EP2015/055284 WO2016005064A1 (en) | 2014-07-11 | 2015-03-13 | Machine for the production of a fiber web |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106661836A true CN106661836A (en) | 2017-05-10 |
| CN106661836B CN106661836B (en) | 2019-12-03 |
Family
ID=52692621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580037203.0A Expired - Fee Related CN106661836B (en) | 2014-07-11 | 2015-03-13 | For manufacturing the machine of fibrous cloth width |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3167115B1 (en) |
| CN (1) | CN106661836B (en) |
| BR (1) | BR112017000527A2 (en) |
| DE (1) | DE102014213512A1 (en) |
| WO (1) | WO2016005064A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938419A (en) * | 2017-12-19 | 2018-04-20 | 山东信和造纸工程股份有限公司 | A kind of soft boots pressure device of toilet paper machine and its application |
| CN110939007A (en) * | 2018-09-24 | 2020-03-31 | 福伊特专利有限公司 | Machine and method for producing a fibrous web |
| CN112752882A (en) * | 2018-09-24 | 2021-05-04 | 福伊特专利有限公司 | Machine and method for producing a fibrous web |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3306316A1 (en) | 2016-10-10 | 2018-04-11 | Deutsches Krebsforschungszentrum Stiftung des Öffentlichen Rechts | Rep protein as protein antigen for use in diagnostic assays |
| EP3424942A1 (en) | 2017-07-07 | 2019-01-09 | Deutsches Krebsforschungszentrum | Improved rep protein for use in a diagnostic assay |
| EP3517960A1 (en) | 2018-01-30 | 2019-07-31 | Deutsches Krebsforschungszentrum | Use of bmmf rep protein as biomarker for colon cancer |
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| US4196689A (en) * | 1977-01-17 | 1980-04-08 | J. M. Voith Gmbh | Apparatus for drying paper webs or the like |
| US4320582A (en) * | 1979-03-09 | 1982-03-23 | United States Steel Corporation | Yankee Dryer and method of fabrication |
| US6306261B1 (en) * | 1999-08-31 | 2001-10-23 | Voith Sulzer Papiertechnik Gmbh | Dewatering device and process and glazing device and process |
| DE102006021428A1 (en) * | 2006-05-05 | 2007-11-08 | Andritz Küsters GmbH & Co. KG | Device for forming at least one extended nip |
| CN102439224A (en) * | 2008-07-03 | 2012-05-02 | 沃依特专利有限责任公司 | Structured forming fabric,papermaking machine and method |
| EP2602387A1 (en) * | 2011-12-07 | 2013-06-12 | Metso Paper Sweden AB | A paper making machine, an extended nip roll and a method of producing tissue paper |
| DE102012104464A1 (en) * | 2012-05-23 | 2013-11-28 | Gapcon Gmbh | Temperable cylinder for the treatment of flat materials |
| CN204849471U (en) * | 2014-07-11 | 2015-12-09 | 福伊特专利有限公司 | A machine for making fibre material width of cloth |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2605424A1 (en) * | 1976-02-12 | 1977-08-25 | Voith Gmbh J M | DRYING CYLINDERS FOR PAPER MACHINES |
| DE19860687A1 (en) | 1998-12-29 | 2000-07-06 | Voith Sulzer Papiermasch Gmbh | Machine and method for producing a fibrous web |
-
2014
- 2014-07-11 DE DE102014213512.5A patent/DE102014213512A1/en not_active Withdrawn
-
2015
- 2015-03-13 EP EP15710756.6A patent/EP3167115B1/en active Active
- 2015-03-13 BR BR112017000527A patent/BR112017000527A2/en active Search and Examination
- 2015-03-13 WO PCT/EP2015/055284 patent/WO2016005064A1/en active Application Filing
- 2015-03-13 CN CN201580037203.0A patent/CN106661836B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4196689A (en) * | 1977-01-17 | 1980-04-08 | J. M. Voith Gmbh | Apparatus for drying paper webs or the like |
| US4320582A (en) * | 1979-03-09 | 1982-03-23 | United States Steel Corporation | Yankee Dryer and method of fabrication |
| US6306261B1 (en) * | 1999-08-31 | 2001-10-23 | Voith Sulzer Papiertechnik Gmbh | Dewatering device and process and glazing device and process |
| DE102006021428A1 (en) * | 2006-05-05 | 2007-11-08 | Andritz Küsters GmbH & Co. KG | Device for forming at least one extended nip |
| CN102439224A (en) * | 2008-07-03 | 2012-05-02 | 沃依特专利有限责任公司 | Structured forming fabric,papermaking machine and method |
| EP2602387A1 (en) * | 2011-12-07 | 2013-06-12 | Metso Paper Sweden AB | A paper making machine, an extended nip roll and a method of producing tissue paper |
| DE102012104464A1 (en) * | 2012-05-23 | 2013-11-28 | Gapcon Gmbh | Temperable cylinder for the treatment of flat materials |
| CN204849471U (en) * | 2014-07-11 | 2015-12-09 | 福伊特专利有限公司 | A machine for making fibre material width of cloth |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938419A (en) * | 2017-12-19 | 2018-04-20 | 山东信和造纸工程股份有限公司 | A kind of soft boots pressure device of toilet paper machine and its application |
| CN110939007A (en) * | 2018-09-24 | 2020-03-31 | 福伊特专利有限公司 | Machine and method for producing a fibrous web |
| CN112752882A (en) * | 2018-09-24 | 2021-05-04 | 福伊特专利有限公司 | Machine and method for producing a fibrous web |
| CN110939007B (en) * | 2018-09-24 | 2021-12-03 | 福伊特专利有限公司 | Machine and method for producing a fibrous web |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016005064A1 (en) | 2016-01-14 |
| BR112017000527A2 (en) | 2017-11-14 |
| EP3167115B1 (en) | 2019-01-02 |
| CN106661836B (en) | 2019-12-03 |
| EP3167115A1 (en) | 2017-05-17 |
| DE102014213512A1 (en) | 2016-01-14 |
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