CN87106348B - Forming and dewatering device for fourdrinier paper machine - Google Patents
Forming and dewatering device for fourdrinier paper machine Download PDFInfo
- Publication number
- CN87106348B CN87106348B CN87106348A CN87106348A CN87106348B CN 87106348 B CN87106348 B CN 87106348B CN 87106348 A CN87106348 A CN 87106348A CN 87106348 A CN87106348 A CN 87106348A CN 87106348 B CN87106348 B CN 87106348B
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- China
- Prior art keywords
- dewatering
- plate
- forming
- net
- multifoil shoe
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- 230000018044 dehydration Effects 0.000 claims description 22
- 238000006297 dehydration reaction Methods 0.000 claims description 22
- 238000007493 shaping process Methods 0.000 claims description 11
- 238000009955 starching Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000004513 sizing Methods 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 description 9
- 238000009434 installation Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000209202 Bromus secalinus Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Abstract
The forming and dewatering device for long-net paper machine adopts single dewatering plate group, and one or several dewatering plate groups are mounted on the net table frame, and positioned between the sizing table roller and end table roller of forming and dewatering section and can be used for horizontally supporting wet paper web forming net. A water receiving tray with a sealed inclined bottom is arranged below the forming net. The invention does not add any dewatering or water collecting facilities with power consumption. The whole structure is simple, and the device is particularly suitable for the technical transformation of the fourdrinier which adopts table rolls and measures of vacuum boxes arranged under the wire.
Description
The invention belongs to fourdrinier machine net part forming dehydration equipment.
Wire-cloths shaping dehydration equipment in the past adopts negative pressure dehydration off the net, and in the time of work, negative pressure dehydration produces pulling force to forming net, affect forming net service life, also cheats machine run increase energy consumption.Patent Office of the People's Republic of China's disclosed " top wire former " description of the invention, CN85103833A, on November 5th, 1986 are open, have middlely introduced a kind of new shaping dewater unit.This device is for twin-wire paper-machine, its invention main points are that " two hold the curved surface through curved surface dewatering plate under online together; curved surface dewatering plate front end has vacuum mat entirety or fluting; after water sucting plate, have many horizontal scraper plates, then two nets are walked around a central deflector roll with the contrary curvature of relative surface plate.After curved surface dewatering plate, there is grade water tank to aspirate the water throwing away, then two nets pile warp one vacuum transmission case again ... ".The dewatering means adopting in the technical scheme that this invention proposes comprises that two nets fold, vacuum mat, curved surface dewatering plate, laterally scraper plate and centrifugal shake-off etc.In this description, also introduced the not scheme of vacuum mat, but still have that two nets fold, the curved surface dewatering plate of larger radius of curvature, the laterally measure such as scraper plate and centrifugal shake-off.For collecting the water oozing out from online, in above-mentioned two kinds of embodiments, on the top of online, one to two vacuum upside-down mounting suction box or " suction " captation must be set.In the overall plan of this invention, the water in paper pulp is inhaled and is taken off, scrapes, gets rid of and aspirate several modes and deviate from through pinching, vacuum.This schemes synthesis is realized above-mentioned dewatering type, thereby makes the structure of dehydration equipment very complicated.Still will increase power consumption for dewatering or collecting the water of having deviate from, for example vacufoil and vacuum upside-down mounting suction box or captation all will have vavuum pump.
The object of the invention is to adopt simple technical measures to realize wet web dehydration, and do not increase the power consumption of additional dehydration measure.
Content of the present invention is to realize wet web dehydration by single multifoil shoe.Concrete scheme is made up of dewatering plate and supporting mechanism.Several dewatering plates are formed to multifoil shoe unit at certain intervals, and every group forms an entirety.Supporting mechanism is starching table roll and the shaping dewatering period end table roll of wite frame and wite frame first and end.One or several multifoil shoe cellular installation, on wite frame, is between secondary breast roll and shaping dewatering period end table roll at starching table roll, with first, the bundle end table roll support wet sheet forming net that is together the level of state.
The invention has the advantages that and only use technical measures single, multifoil shoe to realize wet web dehydration, have obvious difference and advantage compared with quoting the shaping dewater unit of CN85103833A introduction herein.First the device of CN85103833A is for twin-wire paper-machine, and the present invention is for fourdrinier machine, secondly the device of CN85103883A has fully utilized multiple technologies form for reaching dehydration object, thereby make the structure of device quite complicated, and the present invention only uses a kind of technology type of simple dehydration scraper blade group, simple in structure, be especially suitable for transformation and adopt at present table roll to add the fourdrinier dewater unit of vacuum tank.Finally, the additional any type of vacuum draw catchment method of the present invention, in the time that forming net carrying wet web passes through the multifoil shoe of the horizontal support effect of having held concurrently, water is naturally deviate under self-gravity action, and collects off the net.
A specific embodiment of the present invention is if accompanying drawing 1 is to as shown in accompanying drawing 5.
The description of the drawings:
Fig. 1: multifoil shoe and wite frame installation diagram
Fig. 2 to Fig. 4: multifoil shoe generalized section
Fig. 5: the use state diagram of the present invention on fourdrinier
The illustrated title of accompanying drawing:
Starching table roll 1,1, wedged bottom sealing drip tray 2,2.
Dehydration scraper blade 4,1; Left hollow splint 4,2; Sunk screw 4,8; Thick spacer blocks 4,4; Main dividing plate 4,5; Right slotless clamping plate 4,6; Stud 4,7, right hollow splint 4,8; Left slotless clamping plate 4,9; Leptophragmata plate 4,10; Case bar 4,11 table roll bearing bracket stands 4,12; Multifoil shoe location base pressure plate (lower press strip) 4,18; L shaped rail 4,14; Rectangle track 4,15; Multifoil shoe (being contained in starching first place) 4,16; Multifoil shoe (being contained in shaping dewatering period terminal position) 4,17; (many groups of different gap are positioned at middle part to multifoil shoe.Can exchange arbitrarily) 4,18; Median septum piece 4,4a or 4,10a; Side partition piece 4,4b or 4,10b; Top board (can leveling multifoil shoe) 4,19; Upper and lower pressing plate attachment screw 4,20; Leveling jackscrew 4,21; Shaping dewatering period end table roll 4,22.
The multifoil shoe that use some groups of one group of formulas at the dehydration position that is shaped, combines as a whole replaces the vacuum tank under table roll and forming net, as shown in Figure 1.If the profile physical dimension of every group of multifoil shoe more than two is identical, can on wet end use location, exchange mutually, also can have the multifoil shoe that dehydration rate is different and exchange use.The present embodiment is designed to 7 groups of multifoil shoe, respectively organizes wide and forming net fabric width and adapts.Multifoil shoe structure is as shown in Fig. 1～4.Fig. 2, Fig. 4 are two groups of multifoil shoe that dehydration position first and end is used, and Fig. 3 is the one of middle all the other 5 groups of interconvertible multifoil shoe.The difference of Fig. 2～4 three group multifoil shoe profile only has left side fluting that lower end, outside has as slotted as Fig. 4 on the right side that Fig. 2 has, slot as Fig. 3 in some both sides, these differences are only to adapt to the needs that the present embodiment requirement multifoil shoe is installed on wite frame, irrelevant in dehydration.
Several groups of interconvertible centres multifoil shoe has two kinds of versions at least, and difference is between dewatering plate
difference, number difference, thereby dehydration rate difference.The structural principle of each dewatering plate plate group is consistent, as Fig. 2～4.Multifoil shoe can integral production.As integral molded plastic, die casting etc.; Also can be decomposed into several component combinations makes.Decompose to make and can take following proposal: every group of multifoil shoe be by left and right each clamping plate, between clamping plate, have some apart from one another by main dividing plate 4,5 and spacer blocks 4,4 or 4,10 one form.The difference of clamping plate and main dividing plate 4,5 is that there is the groove of placing clamping bolt and nut in clamping plate outside.With previously described mounting groove.Clamping plate entirety length size is consistent with main baffle dimensions.The thickness of spacer blocks has two kinds at least, and a kind of spacer blocks 4,4 using with head end multifoil shoe Fig. 2 is identical, for example Fig. 3.Plant in addition the spacer blocks 4,10 using with end multifoil shoe Fig. 4 identical, accompanying drawing does not represent, but can imagine out easily from the structure of Fig. 4.The plane geometric shape of spacer blocks has two kinds, and one is median septum piece 4,4a or 4,10a, and another kind is side partition piece 4,4b or 4,10b, and their positions in dehydration plate are as shown in Fig. 1 multifoil shoe 4,16.Between adjacent two main dividing plates (or clamping plate) one rows spacer blocks, comprises two side partition pieces 4,4b or 4,10b on both sides and some main spacer blocks 4,4a or 4,10a.Between adjacent spacer blocks, there is drainage gap, if Fig. 1 multifoil shoe 4,16 is below as shown in arrow.Monolithic dewatering plate is connect and forms with main dividing plate 4,5 or clamping plate 4,2,4,6,4,8,4,9 by a slice dehydration scraper blade 4,1 use sunk screw 4,3, and basic specification is consistent, is convenient to processing, assembling and maintenance and exchanges.It can be 3 groups, 4 groups, 5 groups, 6 groups or more groups according to the principle multifoil shoe of the present embodiment.The distance between plates of multifoil shoe is from there being two or more.Adopt the present embodiment to replace table roll by multifoil shoe, fundamentally eliminated the water dumping phenomenon of table roll; Replace the vacuum tank of the negative pressure off the net that is shaped, can reduce the running resistance of forming net, be convenient to the running of felt traction forming net, and can extend the service life of net; Exchange dewatering plate interval different multifoil shoe, can grasp dehydration rate, control waterline, make net all have larger production and adapt to garden and enclose, multifoil shoe has table roll concurrently the supporting role of forming net has been improved the effective rate of utilization of wet end parts.
Prevent that plain boiled water drip is to the wet web with paper felt support, can the case bar inner side below starching wire side and multifoil shoe be installed by the wedged bottom drip tray 2,2 of sealing, in Fig. 1, have the schematic perspective view of drip tray 2,2 shapes and installation site.
Claims (4)
1. a fourdrinier machine shaping dewater unit, formed by dewatering plate and supporting mechanism, it is characterized in that dewatering plate forms multifoil shoe at certain intervals, supporting mechanism is starching table roll and the shaping dewatering period end table roll of wite frame and wite frame first and end, multifoil shoe is arranged on wite frame, between starching table roll and shaping dewatering period end table roll, horizontal support temperature sheet forming net.
2. dewater unit according to claim 1, the specification that it is characterized in that multifoil shoe unit can have several, and the unit appearance and size of all size is identical, and difference is the interval difference between the dewatering plate in unit.
3. dewater unit according to claim 1, is characterized in that dewatering plate is made up of clamping plate or dividing plate and the dehydration scraper blade that combines as a whole in the top, and the appearance and size of every dewatering plate is identical.
4. dewater unit according to claim 1, is characterized in that below starching and dehydration position, there is wedged bottom sealing drip tray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87106348A CN87106348B (en) | 1987-09-18 | 1987-09-18 | Forming and dewatering device for fourdrinier paper machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87106348A CN87106348B (en) | 1987-09-18 | 1987-09-18 | Forming and dewatering device for fourdrinier paper machine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87102984A Division CN87102984B (en) | 1987-04-25 | 1987-04-25 | Paper making machine with multiple long nets arranged horizontally |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87106348A CN87106348A (en) | 1988-09-14 |
| CN87106348B true CN87106348B (en) | 1988-10-05 |
Family
ID=4815662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87106348A Expired CN87106348B (en) | 1987-09-18 | 1987-09-18 | Forming and dewatering device for fourdrinier paper machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87106348B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7540943B2 (en) * | 2003-11-17 | 2009-06-02 | Astenjohnson, Inc. | Shaped slot vacuum dewatering box cover |
-
1987
- 1987-09-18 CN CN87106348A patent/CN87106348B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN87106348A (en) | 1988-09-14 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| PB01 | Publication | ||
| C06 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |