CN103031767A - Screen piece for treating fiber suspension - Google Patents
Screen piece for treating fiber suspension Download PDFInfo
- Publication number
- CN103031767A CN103031767A CN2011103053897A CN201110305389A CN103031767A CN 103031767 A CN103031767 A CN 103031767A CN 2011103053897 A CN2011103053897 A CN 2011103053897A CN 201110305389 A CN201110305389 A CN 201110305389A CN 103031767 A CN103031767 A CN 103031767A
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- CN
- China
- Prior art keywords
- break
- sieve
- opening
- hexagon
- screen piece
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- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/16—Cylinders and plates for screens
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The invention discloses a screen piece for treating fiber suspension, and particularly relates to a screen piece for treating fiber suspension in the papermaking industry and the pulp industry. The screen piece is provided with a great number of penetration openings for fibers. According to the screen piece, each penetration opening has a hexagonal shape, and the penetration holes are formed in a honeycombed shape.
Description
Technical field
What form theme of the present invention is that this sieve has a large amount of break-through openings that are used for fiber for the sieve at paper industry and pulp industry processing fibrous suspension.
Background technology
In paper industry and pulp industry, for example in separator, used sieve, in order in wet screening, process fibrous suspension.At this, the dirt of non-fiber should be intercepted at sieve upward because it is big or small and then be emanated out as a rule.At this, fiber can pass through the sorting opening with the part of water.Equally, the raw material dissolvers (beater, Pulper) and impurity separator (the secondary pulper Detrasher) is provided with sieve, and these sieve interceptions also do not have the paper composition that dissolves and thick interfering material with firmlying.Other application is also arranged, for example be used for fibrous suspension is separated according to fibre length.Basically, such sieve can be flat or arch.Such sieve majority is made by alloy high-quality steel.If such sieve Rotational Symmetry ground, for example become cylindrically to construct, they are called as basket so.
The break-through opening of conventional sieve is circular or is slit shape.The size of these break-through openings and spacing each other depend on corresponding application.This circle only have on the one hand the relative limited break-through area that is used for fibrous suspension and then limited handling capacity with the sieve that is slit shape, and the rib size degradation of Muller's fibers suspension (deflaking) best not of circular break-through opening on the other hand.
Summary of the invention
Therefore, the present invention is based on following task, that is, provide a kind of sieve, this sieve has realized the percent of pass higher than conventional sieve, and this sieve is supported the size degradation process simultaneously.
This task by with hexagon in other words break-through opening hexagonal, that be arranged in minute chip select with being honeycombed solve.Be favose arrangement by hexagonal break-through opening this and maximized the free break-through area that is used for fibrous suspension, this has improved handling capacity.In addition, be the better size degradation that hexagonal break-through opening causes fibrous suspension, and then cause the reduction of fiber loss.
Be preferably equilateral hexagon (equilateral hexagon) of hexagonal break-through opening.That is to say that being hexagonal break-through opening is the hexagon that all edge lengths equate.
Also advantageously, the break-through opening of equilateral hexagon is regular hexagon.The break-through opening that is to say equilateral hexagon is also equal-sized hexagons of all angles.
But, be contemplated that also that in other embodiment of the present invention sieve has hexagonal break-through opening, wherein, all six inclines that are not each break-through opening all are (the non-equilateral hexagons) of equal in length.For example when initial equilateral hexagon stretches along certain incline direction, obtain this shape.By this elongated incline of acquisition that stretches, and then the improvement of acquisition size degradation.
This stretching is preferably 30% to 50%, and for example 40%.
Description of drawings
Introduce with reference to the accompanying drawings hereinafter the present invention.Wherein:
Fig. 1 shows the illustrative arrangement mode of break-through opening in the conventional filter disc of annular break-through opening;
Fig. 2 shows the explanatory view with the sieve of foundation break-through opening of the present invention;
Fig. 3 shows another explanatory view with the sieve of foundation break-through opening of the present invention;
The specific embodiment
What show in Fig. 1 is conventional sieve with annular break-through opening.At this, shown break-through opening has following size:
d＝14mm
c＝19mm
h＝16.45mm
x＝5mm
β＝60°
Utilize these numerical value to obtain 49.24% free area (break-through area) of sieves.
Be used for comparatively having shown the foundation sieve of the present invention with hexagon break-through opening in Fig. 2, these break-through openings are honeycombed ground and arrange.Hexagon break-through opening is regular hexagon in this example.
The mid point of these break-through openings relative to each other distance equates, as the mid point of the annular opening among Fig. 1.
Break-through opening shown in Fig. 2 has following size:
c＝19mm
h＝16.45mm
x＝5mm
Utilize these numerical value to obtain 54.29% free area (break-through area) of sieves.
Thus, have than comparable sieve with annular opening and improved about 10% break-through area according to sieve of the present invention.
The length of the rib that in addition, size degradation is worked has also enlarged 10%.
In Fig. 3, shown another kind of foundation sieve of the present invention.In this case, the regular hexagon from Fig. 2 has stretched about 40% along certain incline direction.
So, the break-through opening has following numerical value:
a＝7mm
c＝19mm
e＝11.52mm
f＝8.08
g＝19.89mm
h＝4.04mm
x＝5mm
Thus, obtained 57.64% free area for this sieve.
Thus, the numerical value of this free area has enlarged 17% with respect to the rounded opening from the sieve of Fig. 1, and the rib that size degradation is worked is long even enlarged 25.9%.
Claims (6)
1. be used for the sieve at paper industry and pulp industry processing fibrous suspension, described sieve has a large amount of break-through openings that are used for fiber, it is characterized in that each described break-through opening has hexagonal shape and is arranged on the described sieve with being honeycombed.
2. sieve according to claim 1 is characterized in that, described break-through opening has the shape of equilateral hexagon.
3. sieve according to claim 2 is characterized in that, described break-through opening has the shape of regular hexagon.
4. sieve according to claim 1 is characterized in that, described break-through opening has the shape of non-equilateral hexagon.
5. sieve according to claim 4 is characterized in that, described non-equilateral hexagon has the shape that equilateral hexagon has stretched in the direction of certain incline.
6. sieve according to claim 5 is characterized in that, the described hexagon 30%-50% that stretched.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103053897A CN103031767A (en) | 2011-09-29 | 2011-09-29 | Screen piece for treating fiber suspension |
| PCT/CN2012/079147 WO2013044676A1 (en) | 2011-09-29 | 2012-07-25 | Screen for treating fiber suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103053897A CN103031767A (en) | 2011-09-29 | 2011-09-29 | Screen piece for treating fiber suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103031767A true CN103031767A (en) | 2013-04-10 |
Family
ID=47994230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103053897A Pending CN103031767A (en) | 2011-09-29 | 2011-09-29 | Screen piece for treating fiber suspension |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103031767A (en) |
| WO (1) | WO2013044676A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001960B (en) * | 2019-12-18 | 2021-06-11 | 安德里茨（中国）有限公司 | Yankee cylinder section pre-processing piece and method for manufacturing Yankee cylinder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1949998A (en) * | 1931-09-16 | 1934-03-06 | Hobert W French | Dewatering apparatus |
| WO1996034674A1 (en) * | 1995-05-03 | 1996-11-07 | R.R. Street & Co. Inc. | Filter cartridge preventing leakage, and filter system and method using the same |
| US6105788A (en) * | 1997-11-12 | 2000-08-22 | Thermo Black Clawson Inc. | Composite screen |
| DE10253352A1 (en) * | 2002-11-14 | 2004-05-27 | Fleissner Gmbh & Co. Maschinenfabrik | Perforated wire mesh drum for treating textiles or paper includes reinforcing strips to connect slots in sheet metal support for wire mesh |
| CN1568229A (en) * | 2001-10-18 | 2005-01-19 | 卡丹特布莱克克劳森公司 | Extraction bedplate with laser or water jet cut apertures |
| US20110174698A1 (en) * | 2008-08-11 | 2011-07-21 | Bergstroem Jonas | Fractionating arrangement |
-
2011
- 2011-09-29 CN CN2011103053897A patent/CN103031767A/en active Pending
-
2012
- 2012-07-25 WO PCT/CN2012/079147 patent/WO2013044676A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1949998A (en) * | 1931-09-16 | 1934-03-06 | Hobert W French | Dewatering apparatus |
| WO1996034674A1 (en) * | 1995-05-03 | 1996-11-07 | R.R. Street & Co. Inc. | Filter cartridge preventing leakage, and filter system and method using the same |
| US6105788A (en) * | 1997-11-12 | 2000-08-22 | Thermo Black Clawson Inc. | Composite screen |
| CN1568229A (en) * | 2001-10-18 | 2005-01-19 | 卡丹特布莱克克劳森公司 | Extraction bedplate with laser or water jet cut apertures |
| DE10253352A1 (en) * | 2002-11-14 | 2004-05-27 | Fleissner Gmbh & Co. Maschinenfabrik | Perforated wire mesh drum for treating textiles or paper includes reinforcing strips to connect slots in sheet metal support for wire mesh |
| US20110174698A1 (en) * | 2008-08-11 | 2011-07-21 | Bergstroem Jonas | Fractionating arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013044676A1 (en) | 2013-04-04 |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130410 |