CN101768890B - For making the method and apparatus of fiber dewatering and dispersion - Google Patents
For making the method and apparatus of fiber dewatering and dispersion Download PDFInfo
- Publication number
- CN101768890B CN101768890B CN200910265666.9A CN200910265666A CN101768890B CN 101768890 B CN101768890 B CN 101768890B CN 200910265666 A CN200910265666 A CN 200910265666A CN 101768890 B CN101768890 B CN 101768890B
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- China
- Prior art keywords
- screw rod
- fiber
- filling screw
- filling
- predrainage
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/121—Screw constructions
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/004—Methods of beating or refining including disperging or deflaking
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Filtration Of Liquid (AREA)
Abstract
The present invention relates to a kind of for making the method and apparatus of fiber dewatering and dispersion.In the process, fiber is flowed to disperser, to disperse by the conveying screw rod clogging screw rod and directly link on filling screw rod.The invention is characterized in, first fiber carried out predrainage and then additionally dewaters in filling screw rod before filling screw rod in dehydration unit.Described equipment has filling screw rod, conveying screw rod and disperser, filling screw rod is directly connected with conveying screw rod, before conveying screw rod is set directly at disperser, filling screw rod has dehydrated mouth, be used for dewatering to fiber, before filling screw rod, be provided with dehydration unit, be used for carrying out predrainage to fiber.When energy ezpenditure is identical, realize the dehydration improved than prior art by method and apparatus of the present invention.
Description
Technical field
The present invention relates to one and make fiber, the method for especially paper fiber dewatering and dispersion, in this method, by clogging screw rod (Stopfschnecke) and being directly connected to the conveying screw rod on filling screw rod, fiber is flowed to disperser, to disperse.The invention still further relates to a kind of equipment implementing the method.
Background technology
This method and this equipment such as known by AT411604B.Pending, the fibre suspension of predrainage dewater in screw extruder, and flow to filling screw rod by pit shaft, or flow to disperser in other operation of conveying screw rod.The task of filling screw rod, before disperser, produces plug shaped article by fiber, and this plug shaped article is used as vapor barrier thing.This vapor barrier thing is necessary, so as steam can not on the direction of screw extruder dissipation out, described steam is delivered to the conveying screw rod in disperser or before flowing to disperser.Usually by disc filter, screen cloth belt filter (Siebbandpresse), disc type squeezer or cartridge type thickener, before screw extruder, predrainage is implemented.
Before dispersion, carry out final dewatering by screw extruder, its shortcoming is, limits the dehydration rate that fibre suspension can reach, or is difficult to the denseness fluctuation of compensation fibre by the dehydration in screw extruder.Therefore wish, can improve fibre suspension dehydration before the dispersing, but additional energy need not be expended.
Summary of the invention
Target of the present invention is, proposes a kind of method, when energy ezpenditure is identical, realizes the dehydration improved than prior art by described method.
Be by the feature of method of the present invention, fiber first carried out predrainage before filling screw rod in dehydration unit, then additionally dewatered in filling screw rod.
In order to produce plug shaped article, fiber strongly is compressed in filling screw rod to be compressed in other words.Within the framework of the invention, described pressure is used for additional dehydration, and need not expend additional energy at this.Ideally, relative to traditional system, even energy can be saved.By filling screw rod in additional dehydration, can dry content be improved, and can compensation fibre denseness fluctuation.Or the screw extruder that may be connected on above can design less, therefore more economize energy (required output dry content is less, this is because dehydration filling screw rod can bring up to output dry content the numerical value of expectation).
In the Advantageous embodiments of described method, can carry out predrainage before filling screw rod by disc filter to fiber, wherein, directly at the heel dehydration is implemented by filling screw rod.That is, between disc filter and filling screw rod, do not implement other dehydration.Therefore, in this embodiment, no longer before filling screw rod, arrange screw extruder, this saves energy and cost greatly.
Advantageously, the fiber of predrainage is dewatered by the dehydrated mouth in filling screw rod housing.Then, the filtrate of accumulation can be caught simply by the reservoir under filling screw rod.
The fiber of predrainage also dewaters by the dehydrated mouth in filling screw rod hollow shaft.At this, filtrate can be derived by hollow shaft well.Certainly it is also contemplated that, fiber dewaters from both sides, is namely dewatered by the dehydrated mouth clogged in screw rod hollow shaft by the dehydrated mouth in filling screw rod housing.
Advantageously, the dehydration in filling screw rod is carried out in rear 1/3rd of filling screw rod, this is because in end segments, there is the highest dewatering pressure, thus there is best dewatering efficiency.
Reasonably, after filling screw rod, preferably in the region of conveying screw rod, steam is flowed to fiber.By transporting of steam, fiber is heated, thus improve the dispersion in disperser.
Relevant device forms theme of the present invention equally, for making fiber, and especially paper fiber dewatering and dispersion, this equipment has filling screw rod, conveying screw rod and disperser, wherein, clog screw rod to be directly connected with conveying screw rod, before conveying screw rod is set directly at disperser.In this device, filling screw rod has dehydrated mouth by the present invention, is used for dewatering to fiber, wherein, is provided with dehydration unit, is used for carrying out predrainage to fiber before filling screw rod.
In the advantageous embodiment of this equipment, the dehydration unit for predrainage refers to disc filter, wherein, after filling screw rod is set directly at this disc filter.That is, other dehydration unit was not set before filling screw rod, such as screw extruder.The cancellation of screw extruder can save energy and cost greatly.
In other advantageous embodiment of this equipment, dehydrated mouth is arranged in filling screw rod housing.Thus, in order to maintain and cleaning, dehydrated mouth can touch easily.At this, dehydrated mouth be preferably arranged on filling screw rod housing as in lower area, namely in the running, in this region, form fiber plug shaped article, this is because there is the highest dewatering pressure there.
It is also contemplated that dehydrated mouth is arranged in the hollow shaft shell of filling screw rod hollow shaft.Thus, filtrate can especially be derived simply by hollow shaft.Certainly both dehydrated mouth can be set in filling screw rod housing, also dehydrated mouth can be set in hollow shaft.
Accompanying drawing explanation
Below by drawings describing the present invention.Wherein:
Fig. 1 illustrates the schematic plan of the equipment by prior art;
Fig. 2 illustrates the side view by equipment of the present invention;
Fig. 3 illustrates the side view of the another program by equipment of the present invention;
Fig. 4 illustrates the detailed view by filling screw rod of the present invention.
Detailed description of the invention
In institute's drawings attached, identical reference marker indicates identical component.
Figure 1 illustrates the equipment by prior art.Here, pending fiber carries out predrainage in predrainage device 11, and flows to screw extruder 7, to dewater further.Predrainage device 11 is formed by disc filter 11 ' or by screen cloth belt filter, disc type squeezer or cartridge type thickener.Screw extruder 7 drives by screw extruding machine actuating device 8.And then, the fiber dewatered falls into through pit shaft 6 the filling screw rod 1 be arranged in below pit shaft 6.Filling screw rod 1 drives by filling screw driver 5.Fiber is compressed in filling screw rod 1, thus especially in the end region of filling screw rod, forms bubble-tight fiber plug shaped article 10, and fiber plug shaped article 10 is used as vapor barrier thing.Conical filling screw rod housing 13 is conducive to the formation of fiber plug shaped article 10, and this conical filling screw rod housing 13 is towards filling screw rod ends taper.Described vapor barrier thing is necessary, to be delivered in disperser 2 or to be delivered to that steam in screw rod 9 can not dissipation be out on the direction of screw extruder 7.Conveying screw rod 9 is connected on after filling screw rod 1, and conveying screw rod 9 flows to disperser 2 fiber.Conveying screw rod 9 has special hook or tip (Dorn) in entrance area, described hook or tip are broken the fiber plug shaped article 10 carrying out auto-pack screw rod 1 (ausraspeln) into pieces, to realize heating the fiber floccule produced at this as quickly as possible.Steam is imported in conveying screw rod 9 by conduit 15 and 15 ', thus before disperser 2, directly can add thermal fiber.Therefore, conveying screw rod 9 is heating and mixing arrangement equally.In order to carry out maintenance work, by conveying screw rod 9 is put away, to open disperser 2.Dashed-line view shows the conveying screw rod 9 ' put away.Disperser 2 is connected with motor 4 by disperser transmission device 3.
Fig. 2 illustrates the side view by equipment of the present invention.As in figure 1, after filling screw rod 1 is arranged on predrainage device 11 and screw extruder 7, and before being located immediately at conveying screw rod 9, and conveying screw rod 9 is directly connected therewith.Conveying screw rod 9 is direct to be again connected with disperser 2, and can have the transport 15,15 ' for steam equally.Steam also can directly be delivered in disperser 2 certainly.In the apparatus of the present: invention importantly, filling screw rod 1 has dehydrated mouth 12,12 ', is used for dewatering to fiber.At this, dehydrated mouth 12 is arranged in filling screw rod housing 13.In the present embodiment, filling screw rod 1 has filling screw rod hollow shaft 14, wherein, in hollow shaft shell 16, is provided with dehydrated mouth 12 ' equally.At this, water or filtrate can be derived from filling screw rod 1 by filling screw rod hollow shaft 14, and by dehydrated tube 18 carrying-off.The filtrate of carrying out the dehydrated mouth 12 of auto-pack screw rod housing 13 is caught and carrying-off by collection container 19.
In fig. 2, dehydrated mouth 12,12 ' is arranged in the whole length of filling screw rod housing 13 and filling screw rod hollow shaft 14.But it is also contemplated that, dehydrated mouth 12,12 ' be preferably arranged on filling screw rod 1 rear 1/3rd places, or be arranged on filling screw rod 1 as in lower area, fiber plug shaped article 10 is formed in this region.This is favourable, this is because there is the highest dewatering pressure there.
In the running, by predrainage after the predrainage of fiber in predrainage device 11, and flow to screw extruder 7, to carry out continuation dehydration.Subsequently, the fiber of partial dehydration falls into filling screw rod 1 by pit shaft 6, and while continuation dehydration, fiber plug shaped article 10 is formed in filling screw rod 1.The filtrate of accumulation in filling screw rod 1 is also discharged by the dehydrated mouth 12 ' in filling screw rod hollow shaft 14 by the dehydrated mouth 12 in filling screw rod housing 13.Dehydration in filling screw rod 1 controls by valve 17.At the vacuum plant that also can be provided with below for generation of low pressure of valve 17.At this, by the swabbing effect in filling screw rod hollow shaft 14 or in collection container 19, the dehydration in filling screw rod 1 is provided support.
Fig. 3 illustrates the side view of the another program by equipment of the present invention.This structure is similar to the structure of Fig. 2, but predrainage device 11 is directly connected with filling screw rod 1.Dehydrating threaded rod 7 is no longer set, this is because by the combination of predrainage device 11 with filling screw rod 1, fiber just can reach enough dry content.Such as can consider with disc filter 11 ', screen cloth belt filter, disc type squeezer or cartridge type thickener as predrainage device 11.
By German patent application DE102008022206A1, support that the disc filter 11 ' of dewatering device is especially suitable as predrainage device 11, this is because can reach especially high dry content by this predrainage device 11 ' with vacuum.
Figure 4 illustrates the profile by filling screw rod 1 of the present invention.At this, the dehydrated mouth 12 ' in the hollow shaft shell 16 of filling screw rod hollow shaft 14 can be seen significantly.To carry being used for and the screw rod 20 of conpressed fibers is fixed on and clogs on screw rod hollow shaft 14.Fiber plug shaped article 10 is formed in the region between filling screw rod hollow shaft 14 and filling screw rod housing 13.In the present embodiment, the dehydrated mouth 12 in filling screw rod housing 13 is only arranged on the bottom side of filling screw rod, but dehydrated mouth 12 is preferably arranged on circumferentially whole.
The embodiment illustrated in the drawings is only the preferred embodiment of the present invention.The present invention also comprises other embodiment, and wherein, such as dehydrated mouth 12,12 ' is only arranged in filling screw rod hollow shaft 14, or is only arranged in filling screw rod housing 13.
Claims (10)
1. for making the method for fiber dewatering and dispersion, in the process, by for the formation of the filling screw rod (1) of bubble-tight fiber plug shaped article (10) and the conveying screw rod (9) directly linked on described filling screw rod (1), fiber is flowed to disperser (2), to disperse, it is characterized in that, described conveying screw rod (9) has hook or tip in entrance area, described conveying screw rod utilizes described hook or tip that the fiber plug shaped article (10) carrying out auto-pack screw rod (1) is broken into pieces, wherein, first fiber carried out predrainage and in directly at the heel dehydration, then utilizes described filling screw rod (1) additionally to dewater before described filling screw rod (1) in disc filter (11').
2. by method according to claim 1, it is characterized in that, the fiber of predrainage is dewatered by the dehydrated mouth (12) in filling screw rod housing (13).
3. by arbitrary described method of claim 1 to 2, it is characterized in that, the fiber of predrainage is dewatered by the dehydrated mouth (12') in filling screw rod hollow shaft (14).
4. by arbitrary described method of claim 1 to 2, it is characterized in that, the dehydration in described filling screw rod (1) is carried out in rear 1/3rd of filling screw rod housing (13).
5., by arbitrary described method of claim 1 to 2, it is characterized in that, after described filling screw rod (1), steam is flowed to fiber.
6., by method according to claim 5, it is characterized in that, in the region of described conveying screw rod (9), steam is flowed to fiber.
7. for making the equipment of fiber dewatering and dispersion, described equipment has the filling screw rod (1) being suitable for forming bubble-tight fiber plug shaped article (10), conveying screw rod (9) and disperser (2), wherein, described filling screw rod (1) is directly connected with described conveying screw rod (9), before described conveying screw rod (9) is set directly at described disperser (2), it is characterized in that, described conveying screw rod has special hook for breaking fiber plug shaped article (10) into pieces or tip at entrance area, wherein, described filling screw rod (1) has dehydrated mouth (12, 12', 12 "), be used for dewatering to fiber, disc filter (11') was provided with before described filling screw rod (1), be used for carrying out predrainage to fiber, and after described filling screw rod (1) is set directly at described disc filter (11').
8. by equipment according to claim 7, it is characterized in that, described filling screw rod (1) has filling screw rod housing (13), and described dehydrated mouth (12) is arranged in described filling screw rod housing (13).
9., by equipment according to claim 8, it is characterized in that, described dehydrated mouth (12) be arranged on described filling screw rod housing (13) as in lower area, that is, in the running, in described region, form fiber plug shaped article (10).
10. by the equipment described in any one of claim 7 to 9, it is characterized in that, described filling screw rod (1) has the filling screw rod hollow shaft (14) for carrying-off filtrate, and described dehydrated mouth (12') is arranged in hollow shaft shell (16).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT20182008A AT507837B1 (en) | 2008-12-29 | 2008-12-29 | METHOD AND DEVICE FOR DRAINING AND DISPERSING A FIBROUS MATERIAL |
| ATA2018/2008 | 2008-12-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101768890A CN101768890A (en) | 2010-07-07 |
| CN101768890B true CN101768890B (en) | 2015-11-25 |
Family
ID=42124502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910265666.9A Active CN101768890B (en) | 2008-12-29 | 2009-12-28 | For making the method and apparatus of fiber dewatering and dispersion |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2202052B1 (en) |
| CN (1) | CN101768890B (en) |
| AT (1) | AT507837B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI125635B (en) * | 2015-02-05 | 2015-12-31 | Valmet Technologies Oy | Device for preheating dispersible circulating pulp |
| CN112959545B (en) * | 2021-02-05 | 2022-09-20 | 常熟市中联光电新材料有限责任公司 | Plastic particle dewatering device for electric wire and cable |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB951520A (en) * | 1962-01-19 | 1964-03-04 | Leje & Thurne Ab | Apparatus for dewatering solid-liquid suspensions |
| US3394649A (en) * | 1966-06-27 | 1968-07-30 | Somat Corp | Liquid extracting device |
| US3943034A (en) * | 1973-04-05 | 1976-03-09 | Lennart Wallen & Co Ab | Dewatering and homogenizing apparatus |
| US4404101A (en) * | 1981-05-12 | 1983-09-13 | Hermann Berstorff Maschinenbau Gmbh | Extraction device for removing liquid from a liquid-solid mixture |
| US5566611A (en) * | 1992-05-15 | 1996-10-22 | Andritz- Patentverwaltungs-Gesellschaft M.B.H | Apparatus for separating liquid from fibrous suspensions |
| CA2319957A1 (en) * | 2000-09-18 | 2002-03-18 | Frank Grund | Strainer for a screw press dewatering apparatus |
| DE10105281A1 (en) * | 2001-02-06 | 2002-08-08 | Voith Paper Patent Gmbh | Assembly for the dispersion of a paper fiber suspension has a screw press, to extract water and pass a high consistency suspension into the disperser with a steam vapor zone and a chopping tool |
| CN1446976A (en) * | 2002-03-27 | 2003-10-08 | 安德里茨有限公司 | Method and appts. for dispersing regenerated fiber pulp |
| DE102008022206A1 (en) * | 2007-05-30 | 2008-12-04 | Andritz Ag | Solid suspension i.e. fiber suspension, dehydrating method for closed container i.e. pressure vessel, involves applying low pressures to sectors of filter element in zones, and supplying air to water separator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT4116B (en) | 1899-09-02 | 1901-05-10 | Ernst Sen Fuchs | |
| SE463425B (en) * | 1989-04-17 | 1990-11-19 | Sunds Defibrator Ind Ab | dewatering |
| DE10018262A1 (en) * | 2000-04-13 | 2001-10-18 | Voith Paper Patent Gmbh | Process for dispersing a paper pulp and plant for carrying out the process |
-
2008
- 2008-12-29 AT AT20182008A patent/AT507837B1/en active
-
2009
- 2009-12-21 EP EP20090015772 patent/EP2202052B1/en active Active
- 2009-12-28 CN CN200910265666.9A patent/CN101768890B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB951520A (en) * | 1962-01-19 | 1964-03-04 | Leje & Thurne Ab | Apparatus for dewatering solid-liquid suspensions |
| US3394649A (en) * | 1966-06-27 | 1968-07-30 | Somat Corp | Liquid extracting device |
| US3943034A (en) * | 1973-04-05 | 1976-03-09 | Lennart Wallen & Co Ab | Dewatering and homogenizing apparatus |
| US4404101A (en) * | 1981-05-12 | 1983-09-13 | Hermann Berstorff Maschinenbau Gmbh | Extraction device for removing liquid from a liquid-solid mixture |
| US5566611A (en) * | 1992-05-15 | 1996-10-22 | Andritz- Patentverwaltungs-Gesellschaft M.B.H | Apparatus for separating liquid from fibrous suspensions |
| CA2319957A1 (en) * | 2000-09-18 | 2002-03-18 | Frank Grund | Strainer for a screw press dewatering apparatus |
| DE10105281A1 (en) * | 2001-02-06 | 2002-08-08 | Voith Paper Patent Gmbh | Assembly for the dispersion of a paper fiber suspension has a screw press, to extract water and pass a high consistency suspension into the disperser with a steam vapor zone and a chopping tool |
| CN1446976A (en) * | 2002-03-27 | 2003-10-08 | 安德里茨有限公司 | Method and appts. for dispersing regenerated fiber pulp |
| DE102008022206A1 (en) * | 2007-05-30 | 2008-12-04 | Andritz Ag | Solid suspension i.e. fiber suspension, dehydrating method for closed container i.e. pressure vessel, involves applying low pressures to sectors of filter element in zones, and supplying air to water separator |
Also Published As
| Publication number | Publication date |
|---|---|
| AT507837B1 (en) | 2010-10-15 |
| EP2202052B1 (en) | 2013-09-18 |
| AT507837A1 (en) | 2010-08-15 |
| CN101768890A (en) | 2010-07-07 |
| EP2202052A1 (en) | 2010-06-30 |
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