CN1201852A - Filter for pulp fluid used in manufacturing paper - Google Patents
Filter for pulp fluid used in manufacturing paper Download PDFInfo
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- CN1201852A CN1201852A CN97116276A CN97116276A CN1201852A CN 1201852 A CN1201852 A CN 1201852A CN 97116276 A CN97116276 A CN 97116276A CN 97116276 A CN97116276 A CN 97116276A CN 1201852 A CN1201852 A CN 1201852A
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- expansion
- wedge wire
- filter
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Abstract
A filter for pulp fluid used in manufacturing paper, in which a mesh cage is made of cuneiform metal wires fixed on a frame. Each cuneiform metal wire has an expand part with a width gradually increase from the narrow end to backward, and is at rear part of a pentagon insert part; a cupped stop part is disposed between the insert part and the expand part; and plural insert grooves formed on one side of the frame with certain space, the shape of the groove is corresponding to the shape of the cuneiform metal wire, therefore, the cuneiform metal wires can be tightly inserted into the grooves of the frame.
Description
The present invention relates to a kind of filter, it will be divided into not on the same group as the waste paper of the natural pulp of paper making raw material or the recovery size according to particle.The invention still further relates to the improvement of the structure and the shape of the cylinder mould that rotor is housed.
In general, the paper mill is when papermaking, and water will mix as the natural pulp of paper material and the secondary stock of recovery, and paper pulp obtains fine grain paper pulp material at last through a plurality of filtration steps.
The invention provides a kind of filter that from paper pulp, extracts paper material.Shown in Fig. 2 A and 2B, filter can roughly be divided into internally-arranged type and external shape, in internally-arranged type, is installed in the inboard of cylinder mould 1 with the rotor 2 of fixed speed rotation; In externally positioned type, rotor 2 is installed in the outside of cylinder mould 1.
When rotor rotation, no matter paper pulp is placed on the cylinder mould 1 inboard or outside, can produce centrifugal force on the paper pulp, so, have only a certain size particle could be discharged to the outside or inboard in the paper pulp by the little gap on cylinder mould 1 outer surface.
For filter, form the uniform particles that even and tiny gap makes the outside that is discharged to cylinder mould under action of centrifugal force or inboard paper pulp, this point is very important.Many existing filters form aspects such as uniform gap, filter efficiency, durability and manufacturing in cylinder mould all have certain difficulty.
With reference to figure 3 and Fig. 4, a kind of existing coiled-type wedge wire filter (roofwedge wire type filter) is made like this, a plurality of cross sections wedge wire triangular in shape is subjected to plastic elongation and twist and warping, the fixed range of being separated by between them, the side of sweep 101a is burn-on.In this filter, tiny clearance t 1 is arranged between wedge wire 101, just can be discharged to the outside so only be less than or equal to particle at interval.Yet, the plastic bending amount of very difficult control wedge wire 101, the very difficult gap that forms a plurality of identical sizes.So filter is not suitable for filtering high-quality paper pulp.
Fig. 5 and Fig. 6 show a kind of existing frame-type wedge wire filter (framewedge wire type filter).The feature of this filter is: a plurality of cross sections are that leg-of-mutton wedge wire is arranged at regular intervals, and framework 202 is pasting a side of each wedge wire, and contact portion is welded.Than last and the paper pulp coiled-type wedge wire introduced increases by 30% by efficient, but the durability of welding portion is relatively poor by efficient for the paper pulp of this filter.In addition, the welding of single wedge wire is consuming time many, and manufacturing expense increases.
With reference to figure 7 and Fig. 8, show a kind of existing hole; The board-like filter of perforation shape (hole ﹠amp; Profile hole plate type filter), it is mainly used in the primary filter of papermaking.This structure decrease the filter efficiency of paper pulp of fine particle, and increased required processing time of technology and expense, this is to have many apertures need show brill because form on the filter 103 of cylinder mould.
As Fig. 9 and shown in Figure 10, show the board-like filter of a kind of existing elongated hole, the elongated hole 104a on the filter 104 has fixing width and length, and they form cylinder mould, are to form with a thin rotation blade cutting.This filter has good durability, but paper pulp have only by efficient the frame-type wedge wire filter 70%.The cutting of each elongated hole 104a has increased time and the expense made.
So the present invention is intended to develop a kind of filter for pulp fluid used in manufacturing paper, it has avoided the shortcoming of correlation technique and one or more problems that limitation is brought basically.
Target of the present invention provides a kind of filter for pulp fluid used in manufacturing paper, and it has good durability and higher paper pulp passes through efficient, and is convenient to make.
To set forth other feature and advantage of the present invention in introducing below, wherein a part is just clear in introduction, perhaps can be from knowing from experience going the use of the present invention.Can know target of the present invention and other advantages in the structure of from written explanation and claim and accompanying drawing, specifically noting.
On the one hand, the invention is characterized in that the shape of wedge wire is corresponding with the shape of inserting groove, and is inserted in wherein tightly at the figurate insertion groove of a side of framework.
Must be clear that top general remark and following detailed introduction only are the examples as general remark, as claimed in claim, the present invention also has other form.
Following accompanying drawing shows the preferred embodiments of the present invention, and they help to understand better the present invention, and they are attached to the part that the back constitutes this specification.Introduce principle of the present invention below with reference to the accompanying drawings.
These accompanying drawings comprise:
Fig. 1 is the perspective view of a filter related to the present invention;
Fig. 2 A and 2B show the running status of filter related to the present invention, and shown in Fig. 2 A is inner-rotor type, and shown in Fig. 2 B is outer-rotor type;
Fig. 3 is a kind of perspective view of existing coiled-type wedge wire formula filter pith;
Fig. 4 is the cutaway view of coiled-type wedge wire formula filter;
Fig. 5 is a kind of perspective view of existing framework wedge wire formula filter pith;
Fig. 6 is the cutaway view of framework wedge wire formula filter;
Fig. 7 is a kind of existing Kong ﹠amp; The perspective view of the board-like filter pith of perforation;
Fig. 8 is the cutaway view of orifice-plate type filter;
Fig. 9 is the perspective view of the board-like filter pith of a kind of existing elongated hole;
Figure 10 is the longitudinal sectional view of the board-like filter of elongated hole;
Figure 11 is the perspective view of filter pith of the present invention;
Figure 12 is the cutaway view of filter of the present invention;
Figure 13 A, 13B and 13C are the planes of wedge wire of the present invention, and Figure 13 A is flat shape, and Figure 13 B is a profile of tooth, and Figure 13 C is a rhombus;
Figure 14 is the plane of the pith of framework of the present invention;
Figure 15 has demonstrated the loaded state that acts on the element shapes of the present invention.
Introduce the present invention in detail below with reference to the preferred embodiments of the present invention, these examples are shown in the drawings.
With reference to Figure 11～15, each wedge wire is made like this, and an expansion 13 is positioned at pentagon insertion portion 11 back, it from narrow limit backward width increase gradually, and between insertion portion 11 and expansion 13, form a sunk part 12.Side at framework 20 is formed with a plurality of insertion grooves that keep at a certain distance away, and its shape is corresponding with wedge wire 10, so they can be fixed in the insertion groove 21 of framework 20 firmly.
Particularly, with reference to figure 13A, 13B and 13C, they are respectively the profiles of wedge wire of the present invention.In the present invention, can use various types of wedge wire according to the separation of paper pulp, the order of separation process and the ambient conditions of filter, the top shape of the expansion 13 of these wedge wire is different.Shown in Figure 13 A is flat shape, and the end face of its expansion 13 is flat.Shown in Figure 13 B is profile of tooth, and its expansion 13 and end face are towards tilting on one side.Shown in the 13C is rhombus, and the end face of its expansion 13 is chevron protuberances 15.
Concerning the drum type brake filter, the expansion 13 of flat shape is only.In this type, the gap between the wedge wire can be very little, so just can be mainly used to extract high-quality paper pulp, although the paper pulp amount that flows through is less.
The expansion 13 that has the profile of tooth of sloped top face forms eddy current by sloping portion 14, so the throughput of paper pulp increases, peaceful shape is compared to be increased more than 30%.Broad gap between each wedge wire is very suitable for the first step of filtering technique.
At last, on expansion 13, have chevron protuberance 15 rhombus expansion pulp flow between flat shape and profile of tooth among between, be mainly used in filter with smooth outside.
With reference to Figure 14, a side of framework 20 has a plurality of phases insertion groove 21 across a certain distance, and wedge wire 10 is inserted in wherein tightly.The is inserted groove 21 certain angle that all tilts.Gapped certain length △ between groove 21.For a plurality of fixed mounts are installed, there are a plurality of holes 22 at the center of framework 20, the distance of fixed interval between these holes, and fixed mount is used for arranging and supporting a plurality of frameworks 20.
Figure 15 shows loaded state, and wherein, the continuous part between wedge wire 10 and framework 20 has paper pulp.In Figure 15, act on paper pulp (paper pulp accounts for 0-3.5%, and water accounts for 96.5-100%) the centrifugal force sum that produces when viscous friction that vertical load Fy on the wedge wire 10 and horizontal load Fx can be expressed as paper pulp and rotor 2 rotate.This summation depends on a plurality of, the density and the viscosity coefficient of circumferential speed, paper pulp.In the present invention, the size and dimension of wedge wire 10 and framework 20 is designed so that they can allow because the effect of external applied load produces enough distortion and stress.
In order to make wedge wire can bear the paper pulp of changes in flow rate of repeat function and the fatigue load brought, the cross section of wedge wire is polygonal, has a plurality of turnings, and it is fixed in the parts of framework 10 firmly.The outer diameter D of the cylinder mould 1 that is assembled into by wedge wire 10 and framework 20 is preferably between 200mm and the 3000mm, and height H is also at 200mm to 3, between the 000mm.
For the flat shape shown in Figure 13 A, the width W 1 of expansion 13 is preferably in 2.0mm between the 5.0mm, the width W 2 that pushes part 11 at 1.0mm between the 3.0mm, expansion 13 and the distance H 1 that stops between the part 12 are 3.0-5.0mm, and the distance H 2 that stops between part 12 and the insertion portion 11 is between the 1.5mm-3.0mm.Radius of curvature R 1 except that the turning that stops part is 0.1-0.5mm, the radius of curvature R 2 that stops turning partly at 0.1mm between the 0.5mm.The inclined angle alpha of expansion 13
1Be preferably between 5 ° to 20 °, the outside corner β of insertion portion 11 is being 5～20 °, and the insertion angle of insertion portion 11 front ends is between 10 ° to 45 °.
In the profile of tooth shown in Figure 13 B, the distance H 3 that stops between the right side of part 12 and expansion 13 is 3.0-5.0mm, the distance H 4 that stops between the left side of part 12 and part 13 is 3.0-6.0mm, the length H5 of the left vertical section of expansion 13 is 0.05-2.0mm, the inclined angle alpha in the left side of expansion 13
2Be 5-30 °, the inclined angle alpha on the right side of expansion 13
3Be 5-30 °, the inclined angle alpha of sloping portion 14
4Be 5-30 °.
In the rhombus shown in Figure 13 C, the distance H 6 that stops between the bottom of part 12 and protuberance 15 is 3.0-5.0mm, and the distance H 7 that stops between the top of part 12 and protuberance 15 is 3.0-6.0mm, the inclined angle alpha of protuberance 15
5Be 0-45 °.
With reference to Figure 14, in framework 20, according to its purposes, the size of gap △ preferably is set to 0.1-0.2mm, and face width of tooth T is 0.2-0.8mm, and the diameter in hole 22 is 5-10mm, and the inclination angle δ that inserts groove 21 is 0-45 °.The width of framework 20 preferably is set between 2.0 to 5.0mm according to the diameter D of cylinder mould 1 and the spacing of height H and wedge wire 10.
As mentioned above, the present invention inserts wedge wire 10 in the groove 21 of framework 20 tightly.Compared with former technology, the present invention has reduced the manufacturing time and the expense of cylinder mould widely, has also increased the efficient of passing through of the durability of cylinder mould and paper pulp simultaneously.In addition, obviously improved the accuracy of manufacture of cylinder mould 10.
Concerning person skilled in the art person, very obvious, do not leaving under spirit of the present invention and the category prerequisite, filter for pulp fluid used in manufacturing paper can have numerous modifications and variations.So the present invention also comprises its various modifications and variations, as long as they are in the scope of claim regulation.
Claims (9)
1. filter for pulp fluid used in manufacturing paper, its cylinder mould is to be made by the wedge wire that is fixed on the framework,
Wherein, each wedge wire all has an expansion, and the width of this expansion increases from narrow end backward gradually, and it is positioned at the back of pentagon insertion portion,
A depression stop part, it between insertion portion and expansion and
A plurality of insertion grooves, they are in the certain at interval distance of a side of framework, and the shape of groove is corresponding with the shape of wedge wire, so they are contained in the insertion groove of framework tightly.
2. as claim 1 described filter, wherein, wedge wire and framework are by having good corrosion resistance and plastic stainless steel is made.
3. as claim 1 described filter, wherein, the turning of wedge wire has certain radian, in order to avoid form crackle.
4. as claim 1 described filter, wherein, each of the framework that wedge wire is inserted inserted the certain angle δ of groove inclination.
5. as claim 3 described filters, wherein, stopping the turning of part and the radius of curvature at other turnings is 0.1-0.5mm.
6. as claim 4 described filters, wherein, the inclination angle of insertion portion is between 0 to 45 °.
7. as claim 1 described filter, wherein, wedge wire is made flat shape, the end face of its expansion is flat, the width of expansion at 2.0mm between the 5.0mm, the width of insertion portion at 1.0mm between the 3.0mm, expansion and the distance that stops between the part are 3.0-5.0mm, the distance that stops between part and the insertion portion is 1.5mm-3.0mm, the radius of curvature at other turning except that the turning that stops part is 0.1-0.5mm, to between the 0.5mm, the inclination angle of expansion is preferably between 5 ° and 20 ° the radius of curvature at turning that stops part at 0.1mm, and the outside angle of insertion portion is 5-20 °.The insertion angle of insertion portion front end is between 10 ° to 45 °.
8. as claim 1 described filter, wherein, wedge wire is made profile of tooth, the end face of its expansion has a sloping portion, and the distance that stops between the part and the right side of expansion is 3.0-5.0mm, and the distance that stops between the left side of part and expansion is 3.0-6.0mm, the length in expansion left vertical cross section is 0.05-2.0mm, the inclination angle in expansion left side is 5-30 °, and the inclination angle on expansion right side is 5-30 °, and the inclination angle of sloping portion is 5-30 °.
9. as claim 1 described filter, wherein, wedge wire is made rhombus, the end face of its expansion has a chevron protuberance, the distance that stops between part and the protuberance bottom is 3.0-5.0mm, the distance that stops between part and the protuberance top is 3.0-6.0mm, and the inclination angle of protuberance is 0-45 °.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970024115A KR100226610B1 (en) | 1996-11-07 | 1997-06-11 | Screening device for filtering pulp |
| KR24115/97 | 1997-06-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1201852A true CN1201852A (en) | 1998-12-16 |
| CN1096527C CN1096527C (en) | 2002-12-18 |
Family
ID=19509206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97116276A Expired - Fee Related CN1096527C (en) | 1997-06-11 | 1997-09-08 | Filter for pulp fluid used in manufacturing paper |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1096527C (en) |
| ID (1) | ID21163A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049161A (en) * | 2010-11-27 | 2011-05-11 | 辽宁裕通激光应用技术工程有限公司 | Industrial filter screen with V-shaped wires and laser processing process thereof |
| CN102776794A (en) * | 2011-05-13 | 2012-11-14 | 湖北宝塔纸业有限公司 | Waste paper pulp sticker removing machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5459414A (en) * | 1977-10-15 | 1979-05-14 | Matsushita Electric Works Ltd | Circular net type paper making machine |
| CN2260099Y (en) * | 1996-02-14 | 1997-08-20 | 徐国恩 | Cylinder mould for paper-making |
| CN2259430Y (en) * | 1996-03-14 | 1997-08-13 | 唐海县造纸机械厂 | Stainless steel air-extracting cylinder mould |
| SE504393C2 (en) * | 1996-04-24 | 1997-01-27 | Sunds Defibrator Ind Ab | Mfg. screening cylinders for pulp or paper=making |
-
1997
- 1997-08-12 ID IDP972815A patent/ID21163A/en unknown
- 1997-09-08 CN CN97116276A patent/CN1096527C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049161A (en) * | 2010-11-27 | 2011-05-11 | 辽宁裕通激光应用技术工程有限公司 | Industrial filter screen with V-shaped wires and laser processing process thereof |
| CN102049161B (en) * | 2010-11-27 | 2012-11-14 | 辽宁裕通激光应用技术工程有限公司 | Industrial filter screen with V-shaped wires and laser processing process thereof |
| CN102776794A (en) * | 2011-05-13 | 2012-11-14 | 湖北宝塔纸业有限公司 | Waste paper pulp sticker removing machine |
| CN102776794B (en) * | 2011-05-13 | 2014-10-29 | 湖北宝塔纸业有限公司 | Waste paper pulp sticker removing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1096527C (en) | 2002-12-18 |
| ID21163A (en) | 1999-04-29 |
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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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20021218 Termination date: 20091009 |