CN1105804C - Device for dehydrating solid-based liquid suspensions, specially fiber-based suspensions - Google Patents
Device for dehydrating solid-based liquid suspensions, specially fiber-based suspensions Download PDFInfo
- Publication number
- CN1105804C CN1105804C CN98806820A CN98806820A CN1105804C CN 1105804 C CN1105804 C CN 1105804C CN 98806820 A CN98806820 A CN 98806820A CN 98806820 A CN98806820 A CN 98806820A CN 1105804 C CN1105804 C CN 1105804C
- Authority
- CN
- China
- Prior art keywords
- roller
- hold
- degree
- adjustable
- down roller
- 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 - Lifetime
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
- D21F1/80—Pulp catching, de-watering, or recovering; Re-use of pulp-water using endless screening belts
-
- 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
- D21F3/04—Arrangements thereof
Landscapes
- Paper (AREA)
- Treatment Of Fiber Materials (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a device for dehydrating solid-based liquid suspensions, specially fiber-based suspensions. The suspension is dehydrated between two bands (4, 5). A dehydration zone is configured as a wedge-shaped area. The invention is chiefly characterized in that the upper and/or lower deflection roller (21, 22) is designed as a tightening roller at the beginning of the wedge.
Description
The present invention relates to a kind of the solid-liquid suspension thing that is used for, the especially dewater unit of fibrous material suspended matter, suspended matter is dehydrated between two bands in this device, and wherein drying zone is designed to tapered region.
This device for example can be known from AT 402.517.For reaching high aridity, adopt so-called S-traction-roller (S-Zug-Walzen) to do the surface extruding here on the one hand, adopt a plurality of roll gaps to do the line extruding subsequently.Because the number of slewing rollers and compression roller is more, causes the length of machine longer.
Therefore the objective of the invention is, simplify known devices, realize a kind of weak point and the compact structure pattern, and reduce certain cost thus.
Above-mentioned purpose is achieved in that promptly according to the present invention, the initial position of wedge shape be provided with individually respectively one single above and/or under slewing rollers as being located immediately at the niproll at the initial position of wedge shape.Can obtain a kind of rotating part (roller) compact especially mechanical device still less thus, and obviously reduce cost.
A kind of decision design of the present invention is characterised in that, by following tapered region roll afterwards closely a width of cloth fabric that not only the fibrous material suspended matter is constituted is applied surface pressing, and it is applied linear pressure.By S-traction-roller that applies surface pressing and the combination that applies the roll gap of linear pressure, can save two rollers, obtain a kind of cramped construction of obvious shortening thus.Owing to saved roller and bearing thereof, therefore also just reduced cost.
A kind of decision design of the present invention is characterised in that the height of wedge on whole fabric width, is adjustable for height especially at its initiating terminal.Like this, can produce various band weight.
The favourable scheme of another kind of the present invention is characterised in that, what pressure roller was right first turns to hold-down roller and is positioned at tapered region end below and directly adjacent with it, wherein tapered region may extend to and exceeds first turning to and hold-down roller subsequently, and the part on opposite can reach the trigonum between sieve band and the roller.Can further shorten mechanical device thus, thus by this design make fabric stable more up to enter first turn to hold-down roller in, and prevent that fibrous material was reversed compression and is pressed by side direction subsequently and squeeze before S-draws a roller and roll gap.Can also prevent that thus filter cake is moistening again thereupon expanding.Main is that to the material of difficult dehydration, therefore the handling capacity of dewater unit improves.
A kind of favourable scheme of the present invention is characterised in that, first turns to and the looping angle of hold-down roller is 10 to spend between 90 degree, preferably is about 60 degree.
Another kind of design of the present invention is characterised in that, second turns to and the looping angle of hold-down roller is 30 to spend between 120 degree, preferably is about 100 degree.
The favourable scheme of another kind of the present invention is characterised in that, this/these looping angles can change, and it is adjustable more specifically to say so.
The favourable scheme of another kind of the present invention is characterised in that wedge shape top is especially automatic, and as flexible, adjustable, and the part on opposite is fixed.
Describe the present invention for example by accompanying drawing below, wherein Fig. 1 is a dewater unit of the prior art, and Fig. 2 is according to dewater unit of the present invention.
As shown in Figure 1, dewater unit 1 has with wedge shape position 2 and another dehydration position, is S one traction one position 3 specifically.Here, top sieve filter bag 4 is in other words walked around the last slewing rollers 6 of adjustable positions, walks around slewing rollers 7 then and enters in the wedge that is made of plate 10 and 11.Second sieves in other words that filter bag 5 is walked around corresponding slewing rollers 8 and another slewing rollers 9 enter in the described wedge equally.Thing to be drained off as fibrous material, also enters in the described wedge by import 12.Wedge shape top 10 and wedge shape bottom 11 are adjustable by threaded mandrel 13 mechanical connections and interval in import department.After leaving the slit, turn to around S-traction- roller 21 and 22 together with therebetween fabric, therefore can realize further dehydration with 4 and 5.Here wedge shape top 10 is by a pneumatic hose or fluid power flexible pipe adjustable height.Realize the conveying of compressed air or flow of pressurized by connecting pipe 15.Dogbolt 16 is used to limit minimum or maximum shift.One slide block 17 is used to bear axial force.There is a supporting 18 to be used to stretch out in addition and does cantilever, promptly be used for changing continuously (for no reason) sieve band.In order to influence surrounding environment as small as possible, wedge shape top 10 and a cover 19 are made of one, and wedge shape bottom 11 and a reservoir 20 are made of one.
As can be seen from Figure 2, the last slewing rollers 6 by fluid power cylinder or pneumatic linear actuator adjustable positions are the unique slewing rollers that are used for top sieve band 4.Therefore the slewing rollers down of the prior art that save, thus very compact structure form can be obtained.Similarly situation is applicable to down slewing rollers 8, and it is adjustable by fluid power cylinder or pneumatic linear actuator 9.Here, two S-traction- rollers 21,22 are as turning to and hold-down roller.And roller 22 to be pressed on the roller 21 be to realize by fluid power cylinder 23, thereby produced the pincers 24 that have additional wire pressure.Therefore and then also has other a pair of hold-down roller to 25,26, the dry thing that can obtain wishing at the end of dewater unit.
What pressure roller was right here first turns to the end below that is positioned at tapered region 10,11 with hold-down roller 21, and directly adjacent with it, and wherein clapboard 10 extends beyond always and turns to and hold-down roller 21, and clapboard 11 to face portion reach sieve with 5 and roller 21 between the trigonum.First turns to the looping angle with hold-down roller 21 to be about 60 degree, and second turn to the looping angle with hold-down roller 22 to be about 100 degree.
The present invention is not subjected to the restriction of embodiment, but also can be for example with turn to the layout of hold-down roller conversely, promptly first roller is positioned at the top.Slewing rollers and hold-down roller also can adopt other adjusting and hold-down mechanism.
Claims (9)
1. be used for the solid-liquid suspension thing, especially the dewater unit of fibrous material suspended matter, suspended matter is dehydrated between two bands in this device, wherein drying zone is designed to tapered region, it is characterized in that, the initial position of wedge shape be provided with individually respectively one single above and/or under slewing rollers as being located immediately at the niproll at the initial position of wedge shape.
2. device as claimed in claim 1 is characterized in that, the pressure roller by subsequently is to not only applying surface pressing to the fabric that is made of the fibrous material suspended matter, and it is applied linear pressure.
3. device as claimed in claim 1 or 2 is characterized in that, the height of wedge on whole fabric width, is adjustable for height especially at its initiating terminal.
4. device as claimed in claim 2 is characterized in that, what pressure roller was right first turns to hold-down roller and be positioned at tapered region end below and directly adjacent with it.
5. device as claimed in claim 4 is characterized in that, tapered region extends to and exceeds first turning to and hold-down roller subsequently, and the part on opposite can reach the trigonum between sieve band and the roller.
6. device as claimed in claim 2 is characterized in that, first turns to and the looping angle of hold-down roller is 10 to spend between 90 degree, preferably is about 60 degree.
7. device as claimed in claim 2 is characterized in that, second turns to and the looping angle of hold-down roller is 30 to spend between 120 degree, preferably is about 100 degree.
8. as claim 6 or 7 described devices, it is characterized in that, this/these looping angles can change, and it is adjustable more specifically to say so.
9. device as claimed in claim 1 or 2 is characterized in that, wedge shape top is especially automatic, and as flexible, adjustable, and the part on opposite is fixed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT112097A AT405656B (en) | 1997-07-01 | 1997-07-01 | DEVICE FOR DRAINING SOLID-LIQUID SUSPENSIONS, IN PARTICULAR FIBER-SUSPENSIONS |
| ATA1120/1997 | 1997-07-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1261936A CN1261936A (en) | 2000-08-02 |
| CN1105804C true CN1105804C (en) | 2003-04-16 |
Family
ID=3507027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98806820A Expired - Lifetime CN1105804C (en) | 1997-07-01 | 1998-07-01 | Device for dehydrating solid-based liquid suspensions, specially fiber-based suspensions |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0993521B1 (en) |
| JP (1) | JP4339412B2 (en) |
| CN (1) | CN1105804C (en) |
| AT (1) | AT405656B (en) |
| AU (1) | AU8804898A (en) |
| BR (1) | BR9810512A (en) |
| CA (1) | CA2294389C (en) |
| DE (1) | DE59803866D1 (en) |
| WO (1) | WO1999001610A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE527778E (en) * | 2004-11-02 | 2014-09-30 | Valmet Technologies Inc | Method and apparatus for a double-wire press |
| CA2657627A1 (en) | 2009-03-10 | 2010-09-10 | Services Techniques Hds | Twin wire press |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4481118A (en) * | 1982-03-01 | 1984-11-06 | Maschinenfabrik Andritz Actiengesellschaft | Method and apparatus for rinsing filter cake |
| US4525241A (en) * | 1982-03-05 | 1985-06-25 | Valmet Oy | Press section of a paper machine |
| EP0460638A1 (en) * | 1990-06-06 | 1991-12-11 | Bernt U. Treu | Process and apparatus for washing cellulosic pulp |
| EP0511951A1 (en) * | 1991-04-30 | 1992-11-04 | Huyck-Austria Gesellschaft M.B.H. | Screening belt press, respectively sleeve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT402951B (en) * | 1995-09-19 | 1997-10-27 | Andritz Patentverwaltung | DEVICE FOR DRAINING VIBRANT-LIQUID MIXTURES, IN PARTICULAR CELLULAR SUSPENSIONS |
| AT402517B (en) * | 1995-11-10 | 1997-06-25 | Andritz Patentverwaltung | DEVICE FOR DRAINING SOLID-LIQUID SUSPENSIONS, IN PARTICULAR CELLULAR SUSPENSIONS |
-
1997
- 1997-07-01 AT AT112097A patent/AT405656B/en not_active IP Right Cessation
-
1998
- 1998-07-01 EP EP98939588A patent/EP0993521B1/en not_active Revoked
- 1998-07-01 WO PCT/EP1998/004046 patent/WO1999001610A1/en active IP Right Grant
- 1998-07-01 CN CN98806820A patent/CN1105804C/en not_active Expired - Lifetime
- 1998-07-01 JP JP50632999A patent/JP4339412B2/en not_active Expired - Lifetime
- 1998-07-01 CA CA002294389A patent/CA2294389C/en not_active Expired - Lifetime
- 1998-07-01 AU AU88048/98A patent/AU8804898A/en not_active Abandoned
- 1998-07-01 DE DE59803866T patent/DE59803866D1/en not_active Revoked
- 1998-07-01 BR BR9810512-4A patent/BR9810512A/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4481118A (en) * | 1982-03-01 | 1984-11-06 | Maschinenfabrik Andritz Actiengesellschaft | Method and apparatus for rinsing filter cake |
| US4525241A (en) * | 1982-03-05 | 1985-06-25 | Valmet Oy | Press section of a paper machine |
| EP0460638A1 (en) * | 1990-06-06 | 1991-12-11 | Bernt U. Treu | Process and apparatus for washing cellulosic pulp |
| EP0511951A1 (en) * | 1991-04-30 | 1992-11-04 | Huyck-Austria Gesellschaft M.B.H. | Screening belt press, respectively sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2294389A1 (en) | 1999-01-14 |
| EP0993521A1 (en) | 2000-04-19 |
| ATA112097A (en) | 1999-02-15 |
| AU8804898A (en) | 1999-01-25 |
| CN1261936A (en) | 2000-08-02 |
| EP0993521B1 (en) | 2002-04-17 |
| JP4339412B2 (en) | 2009-10-07 |
| AT405656B (en) | 1999-10-25 |
| BR9810512A (en) | 2000-09-05 |
| DE59803866D1 (en) | 2002-05-23 |
| WO1999001610A1 (en) | 1999-01-14 |
| CA2294389C (en) | 2007-10-30 |
| JP2002508814A (en) | 2002-03-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20030416 |