CN101018618B - Screen and screen element - Google Patents
Screen and screen element Download PDFInfo
- Publication number
- CN101018618B CN101018618B CN200580031058.1A CN200580031058A CN101018618B CN 101018618 B CN101018618 B CN 101018618B CN 200580031058 A CN200580031058 A CN 200580031058A CN 101018618 B CN101018618 B CN 101018618B
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- CN
- China
- Prior art keywords
- screen
- screen element
- depression
- sieve
- screen frame
- 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 - Fee Related
Links
- 230000000295 complement effect Effects 0.000 claims description 11
- 239000013536 elastomeric material Substances 0.000 claims description 11
- 239000004814 polyurethane Substances 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 229920005668 polycarbonate resin Polymers 0.000 claims description 6
- 239000004431 polycarbonate resin Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 14
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Abstract
A screen element (2) of a screen (1) has longitudinal sides adapted to be arranged in a longitudinal direction of a screen frame (4) and transverse sides adapted to be arranged in a transverse direction of the screen frame (4) . The transverse sides of the screen element (2) are provided with at least one projection (6) and/or at least one recess (7) for locking engagement, in a direction transversely to the plane of the screen element (2), with a corresponding projection (6) and/or recess (7) on neighbouring screen elements arranged in the screen frame (4) . A screen (1) with a screen element (2) arranged in a screen frame (4) is also disclosed.
Description
Technical field
The present invention relates to a kind of screen element (screen element) that is suitable for being arranged in the screen frame, its have be suitable for being arranged in screen frame vertically on longitudinal side and the horizontal side transversely that is suitable for being arranged in screen frame.The invention still further relates to a kind of sieve, it has screen frame and is arranged in the screen element in the screen frame, screen element have be arranged in screen frame vertically on longitudinal side and the horizontal side transversely that is arranged in screen frame.
Background technology
The screen element of the above-mentioned type is known with sieve, for example from EP-A-26961 and US-RE38, among the 303E, wherein discloses the dissimilar sieves with the screen element that is arranged in the screen frame.
These sieves are compared with the sieve in epoch more early has several advantages, because each screen element can change when wearing and tearing, and this replacing is simple relatively, can need not much to work and equip under carry out.
Because the sieve plate of the above-mentioned type receives longitudinal force and has the screen element on the framework that is arranged in the bar that comprises longitudinal register, screen element must more or less lock to prevent its slip in the vertical.Realize that so a kind of usual manner is the sidewall that is threaded into screen frame.
Screen element should have big as far as possible active surface.Active surface is subject to the rigidity of screen element usually, because more low intensive screen element need be with short spaced apart supporting section, and the invalid surface that this has caused screen element to increase.But, let whole compass screen surface constitute and the number of the strong point is reduced to the minimum favourable possibility that do not constitute by single screen element.This method can provide maximum surface really, but its cost is very high operating cost, because under the situation of concentrated wear, also must change whole sieve plate (screen deck).
Therefore hope to obtain a kind of sieve plate, and be easy to change discrete component on it with big active surface and high stability.
WO 89/08509 discloses so-called step deck (step deck), and the screen element of promptly wherein arranging continuously overlaps each other to form the sieve on step screen surface.
Summary of the invention
The present invention satisfies above standard through the new screen element that the said type of technical field part is provided with new sieve and addresses the above problem.
The invention provides a kind of screen element that is suitable for being arranged in the screen frame; It has be suitable for being arranged in screen frame vertically on longitudinal side and the horizontal side transversely that is suitable for being arranged in screen frame; It is characterized in that; Horizontal side is provided with at least one projection and/or at least one depression, be used on transverse to the direction on screen element plane with the adjacent screen element that is arranged in screen frame on complementary protuberance and/or depression locking mesh.
The present invention also provides a kind of sieve; It has screen frame and is arranged in the screen element in the screen frame; Screen element have be arranged in screen frame vertically on longitudinal side and the horizontal side transversely that is arranged in screen frame; It is characterized in that the horizontal side of screen element is provided with at least one projection and/or at least one depression, be used on the thickness direction of screen element with the adjacent screen element that is arranged in screen frame on complementary protuberance and/or depression locking mesh.
The horizontal side of this creationary screen element has at least one projection and/or at least one depression.So adjacent screen element can mesh on the direction transverse to the screen element plane locked to each otherly.Adjacent screen element thereby be maintained in vertical direction together and reduced the danger that between the short side of adjacent screen element, forms the slit, this has reduced transversely the needs to support frame again.
Preferably screen element has nip on its downside, and it has simplified the buckle with screen frame.
Preferably, nip screen frame vertically on extend to be connected to vertical linkage section of screen frame.
A kind of creationary screen element is also processed by elastomeric material and is preferably processed by the elastomeric material with two kinds of different hardness.This provides stability and rigidity when guaranteeing big wearability.
According to an embodiment, the upside of screen element has than the low rigidity of the downside of screen element so that the stable and rigid structural with wearing face is provided.
The elastomeric material of contiguous nip preferably has two kinds of different hardness, therefore is suitable for having the hardness lower than the material on the opposite side of groove in the face of the material on the groove side of another screen element.When being clipped to screen frame, this causes towards the expansion of the softer side of the groove of another screen element, and this has just formed the sealing that improves between adjacent screen element.
Above-mentioned elastomeric material is preferably polyurethane (PU), because the screen element of this material is suitable for technical purpose and saves manufacturing cost.
If necessary, polyurethane screen has the reinforcement of polycarbonate resin (PC).Have been found that polycarbonate resin is bonded to polyurethane in the mill admirably and has guaranteed fabulous enhanced propertied.In addition, with comparing that PU material with steel for example strengthens,, the PU material that PC strengthens is easy to degraded and advantages of being cheap in case having wearing and tearing.
A kind of creationary screen element preferably has at least one projection and/or at least one depression that is arranged on its long side.They have allowed complementary protuberance and the locking mesh of depression on the long side with adjacent screen element.This engagement has guaranteed that screen element can not slide relative to each other.
The projection of screen element and/or depression preferably are arranged so that with mode so screen element has identical peripheral shape around the rotation of the axis on the compass screen surface normal direction half-turn time.Each screen element can overturn when this symmetry makes and for example on the screen element surface, uneven wear to occur.
According to an embodiment, the downside of screen element is a curved surface at short side place.Curved surface has increased screen element hardness in the horizontal, and with the locking mesh of lacking side, even make that screen frame also need not any fastening in the horizontal when receiving high load capacity.
Sieve according to the present invention has screen frame and comprises the screen element that is arranged in the screen frame, and screen element have be arranged in screen frame vertically on longitudinal side and the horizontal side transversely that is arranged in screen frame.In addition, the horizontal side of screen element has at least one projection and/or at least one depression, be used for the adjacent screen element that is arranged in screen frame on complementary protuberance and/or the locking mesh of depression.On this thickness direction that is engaged on screen element that screen element is locked to each other.
In one embodiment, the screen element of sieve is meshed with screen frame by means of being formed at the nip on the screen element downside.Nip has allowed simple and easy-to-install buckle and has kept each screen element safely.
Screen frame preferably includes the linkage section of longitudinal extension, and screen element is secured to linkage section by means of its nip through buckle.The feasible shape that can under the frame structure below structurally not changing, regulate sieve plate individually of linkage section.
In one embodiment, linkage section screen frame vertically on be stepped, thereby the screen element that is fastened to linkage section forms stepped compass screen surface.Thereby stepped compass screen surface rotates the material that is screened and improves screening effeciency.
In addition, linkage section preferably is the rotation with the permission linkage section of symmetry in the horizontal, and this provides the longer life-span.
The screen element of sieve preferably has at least one projection and/or at least one depression on its long side, be used for screen frame vertically on the adjacent screen element that is arranged in screen frame on complementary protuberance and/or depression locking mesh.This has brought other stability to sieve, and is locked to each other by the engagement institute between the projection/depression on its short side and the long side because screen element is not only supported by linkage section.
According to an embodiment, said at least one projection on growing side and lacking side and/or depression are arranged such that respectively screen element has identical peripheral shape around the rotation of the axis on the compass screen surface normal direction half-turn time.This character has increased the flexibility of sieve and has saved cost, because the concentrated wear on each screen element can be alleviated through rotating each screen element.
In addition, laterally complementary protuberance and/or the depression in the wall protector of at least one projection on the outer long sides of outermost screen element and at least one depression and screen frame is meshed, thereby thereby these screen elements and whole sieve surface are locked.Because buckle and locking mesh, compass screen surface laterally or vertically all can not move.
Description of drawings
To the present invention be described by way of example based on two embodiment and with reference to accompanying drawing below, in the accompanying drawings:
Fig. 1 is the perspective view according to the sieve of first embodiment of the invention,
Fig. 2 is the enlarged detail view of the screen element that sieves among Fig. 1.
Fig. 3 is the perspective view according to the sieve of second embodiment of the invention,
Fig. 4 be the screen element that sieves among Fig. 2 enlarged detail view and
Fig. 5 a-f is the cutaway view that is used to connect the linkage section of screen element according to the present invention.
The specific embodiment
Sieve 1 shown in Figure 1 comprises a plurality of screen elements 2, and screen element 2 is arranged on the screen frame by means of buckle through the linkage section 4 that is arranged on the screen frame (not shown).Buckle is made up of nip 5,5 engagements of this nip be arranged in sieve 1 vertically on linkage section 4.
As from Fig. 2, more being clear that, screen element 2 has horizontal side or the projection 6 on the short side that is arranged in its transversal orientation and caves in 7, the respective recesses 7 and the projection 6 of their engage adjacent screen elements 2.This locking mesh has been guaranteed the relative locking of the short side between vertical adjacent screen element.The projection 6 that is formed on two at has also been improved locking in addition with depression 7.Screen element 2 is processed by the polyurethane of two kinds of different hardness.In the example shown, constitute the screen element upside and process (about 78 ° of Shore A hardness) by the polyurethane of soft, it is lower than the hardness that constitutes the sieve downside.In the example shown, the hardness of downside is approximately 65 ° of Shore D level hardness.In addition, the material that closes on nip 5 has two kinds of different hardness, so groove 5 is suitable for the hardness of the material on the opposite side 5b that hardness in the face of the material on the side 5a of adjacent screen element is lower than groove.
The long side of the portrait orientation of screen element 2 also has projection 8 and depression 9, respective recesses 9 and projection 8 on their locking ground engage adjacent screen elements 2.
Depression 7,9 and projection 6,8 are arranged so that screen element can and be positioned in again in the sieve 1 around the axis rotation half-turn on the sieve normal to a surface direction then with mode so along the periphery of screen element 2.If screen element 2 some place in its surface is worn, it can rotate half-turn so, is replaced with replacement.
In this first embodiment, screen element 2 has arc 13 to increase its rigidity on its downside.
The screen frame wall protector 10 of spiral to screen frame wall (not shown) has projection 11 and depression 12, and they mesh projection 8 and depression 9 on foreign minister's side of horizontal outermost screen element 8, thereby thereby lock these screen elements and also lock whole sieve surperficial.Buckle and locking mesh have prevented that the sieve surface from laterally or longitudinally moving.
Arrangement for deflecting 14 is installed in the depression that is formed in the screen element 2 that sieves on 1 with 15 with inaccessible.
Fig. 5 a-c shows the example of the cross section of linkage section 4.Being used for the linkage section in the sieve 1 of Fig. 1, as from Fig. 5 a, more being clear that, is symmetrical, so they are rotatable and therefore before needs are changed, have the longer life-span.And the linkage section shown in Fig. 5 b and the 5c 4 also is rotating.
According to second embodiment of this creative sieve shown in Fig. 3 and 4, the linkage section 104 of sieve 101 is stepped, thereby the screen element 102 that is connected to linkage section 104 has formed stepped sieve surface, so-called step deck.This embodiment is particularly useful for relating to the application scenario of a lot of particulates, because the step screen surface is rotated the material that is just being screened and improved screening effeciency in this way.
Compare the projection 106 of screen element 102 and 107 tightness that increase in having guaranteed to connect between the screen element 102 of continuous layout that cave in here with the step deck of prior art.
Staged linkage section 104 has guaranteed to provide the optional mode of step deck.In the step deck of prior art, linkage section is straight and screen element alternatively is arranged as and overlaps each other.
Fig. 5 d-f shows the example of the cross section of linkage section 104.
Person skilled in the art should realise that the present invention by accompanying claims institute restricted portion in, a lot of modification of the present invention embodiment described herein all are possible.
For example, how the hardness of processing the material of screen element can be used and change according to sieve.The suitable hardness of the material in the screen element upside is to be 35-75 ° of Shore D level hardness in 30-90 ° of Shore A hardness and the downside under many circumstances.The wearability of compass screen surface also can be improved by means of ceramic member.
Standarized component such as stopping up band and arrangement for deflecting, can be installed in other structure and also can foreclose fully.
The shape of linkage section can suitably design; For example the distribution of the thickness of material and material can be adjusted to the load that is applied, thereby does not depart from target of the present invention.
In described two embodiment, the elastomeric material of screen element can strengthen with polycarbonate resin when needed.
In the embodiment shown, the sieve surface is a body component of screen element, but this sieve surface also can be by replacements such as for example woven wires.
Claims (20)
1. screen element (2 that is suitable for being arranged in the screen frame; 102), its have be suitable for being arranged in screen frame vertically on longitudinal side and the horizontal side transversely that is suitable for being arranged in screen frame, it is characterized in that horizontal side is provided with at least one projection (6; 106) and/or at least one depression (7; 107), be used for transverse to screen element (2; 102) on the direction on plane be arranged in the adjacent screen element (2 in the screen frame; 102) complementary protuberance (6 on; 106) and/or the depression (7; 107) locking mesh.
2. screen element as claimed in claim 1, wherein, screen element has the nip (5 that is used to be clipped to screen frame on its downside; 105).
3. screen element as claimed in claim 2, wherein, nip (5; 105) screen frame vertically on extend to be connected to vertical linkage section of screen frame.
4. screen element as claimed in claim 3, wherein, screen element is processed by elastomeric material.
5. screen element as claimed in claim 4, wherein, screen element is processed by the elastomeric material with at least two kinds of different hardness.
6. screen element as claimed in claim 5, wherein, screen element (2; 102) upside has than screen element (2; 102) downside will be low hardness.
7. like claim 5 or 6 described screen elements; Wherein, The elastomeric material of contiguous nip (5) has two kinds of different hardness, therefore is suitable for having the hardness that elastomeric material on the opposite side (5b) than groove will be low in the face of the elastomeric material on the groove side (5a) of adjacent screen element (2).
8. the screen element described in claim 4, wherein, said elastomeric material is a polyurethane.
9. screen element as claimed in claim 8 also comprises the reinforcement of polycarbonate resin.
10. screen element as claimed in claim 1, wherein, said longitudinal side is provided with at least one projection (8; 108) and/or at least one depression (9; 109), be used for screen frame vertically on the adjacent screen element (2 that is arranged in screen frame; 102) complementary protuberance (8 on; 108) and/or the depression (9; 109) locking mesh.
11. screen element as claimed in claim 10, wherein, said at least one projection (6,8; 106,108) and/or the depression (7,9; 107,109) be arranged such that screen element (2; 102) around the axis rotation half-turn on the sieve surface normal direction time, has identical peripheral shape.
12. screen element as claimed in claim 1, wherein, the screen element downside is arc (13; 113).
13. a sieve, it has screen frame and is arranged in the screen element (2 in the screen frame; 102), screen element have be arranged in screen frame vertically on longitudinal side and the horizontal side transversely that is arranged in screen frame, it is characterized in that screen element (2; 102) horizontal side is provided with at least one projection (6; 106) and/or at least one depression (7; 107), be used at screen element (2; 102) on the thickness direction be arranged in the adjacent screen element (2 in the screen frame; 102) complementary protuberance (6 on; 106) and/or the depression (7; 107) locking mesh.
14. sieve as claimed in claim 13, wherein, screen element (2; 102) through by means of the nip (5 that is formed on the screen element downside; 105) buckle and be secured to screen frame.
15. sieve as claimed in claim 14, wherein, screen frame comprises in the vertical the linkage section that extends, and screen element (2 wherein; 102) pass through by means of nip (5; 105) buckle and be secured to linkage section.
16. sieve as claimed in claim 15, wherein, the linkage section of screen frame on vertically be made into stair-stepping, surperficial thereby the screen element (102) that is fastened to linkage section forms stepped sieve.
17. like claim 15 or 16 described sieves, wherein, linkage section is symmetrical on cross section.
18. sieve as claimed in claim 13, wherein, screen element (2; 102) its longitudinal side is provided with at least one projection (8; 108) and/or at least one depression (9; 109), be used for screen frame vertically on the adjacent screen element (2 that is arranged in screen frame; 102) complementary protuberance (8 on; 108) and/or the depression (9; 109) locking mesh.
19. sieve as claimed in claim 18, wherein, said at least one projection (6,8; 106,108) and/or the depression (7,9; 107,109) be arranged such that screen element (2; 102) around the axis rotation half-turn on the sieve surface normal direction time, has identical peripheral shape.
20. sieve as claimed in claim 18; Wherein, Laterally complementary protuberance and/or the depression in the wall protector of at least one projection on the outer long sides of outermost screen element and at least one depression and screen frame is meshed, thereby thereby these screen elements and whole sieve surface are locked.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60998004P | 2004-09-15 | 2004-09-15 | |
| SE04022190 | 2004-09-15 | ||
| US60/609,980 | 2004-09-15 | ||
| SE0402219A SE528355C2 (en) | 2004-09-15 | 2004-09-15 | Screen element for screen comprises transverse sides provided with projection and/or recess for locking engagement, in thickness direction of screen element, with projection and/or recess on neighboring screen elements arranged in frame |
| SE0402219-0 | 2004-09-15 | ||
| PCT/SE2005/001303 WO2006031176A1 (en) | 2004-09-15 | 2005-09-09 | Screen and screen element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101018618A CN101018618A (en) | 2007-08-15 |
| CN101018618B true CN101018618B (en) | 2012-12-05 |
Family
ID=38727174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200580031058.1A Expired - Fee Related CN101018618B (en) | 2004-09-15 | 2005-09-09 | Screen and screen element |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101018618B (en) |
| RU (1) | RU2007114078A (en) |
| ZA (1) | ZA200702776B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109070139A (en) * | 2016-05-03 | 2018-12-21 | M-I有限公司 | For fastening the equipment, system and method for sieve on rotary flat screen |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0817523B1 (en) * | 2007-10-05 | 2019-09-24 | M-I L.L.C. | METHOD OF HOLDING ADJACENT SENSORS AND METHOD OF ARRANGING VIBRATORY SEPARATORS |
| GB0823402D0 (en) * | 2008-12-23 | 2009-01-28 | United Wire Ltd | Improved sifting screen |
| DE102013010051B3 (en) * | 2013-06-17 | 2014-07-31 | Schenck Process Gmbh | Screen lining |
| CN104096401B (en) * | 2014-07-10 | 2016-02-24 | 环境保护部南京环境科学研究所 | Gravel in separation drip washing repairing polluted soil generation slime water, the equipment of humus and separation method thereof |
| CN104923475A (en) * | 2015-06-30 | 2015-09-23 | 华南农业大学 | Guided sieve tray sorting opium poppy shell fragments and stalk, and screening method thereof |
| US11213857B2 (en) | 2017-06-06 | 2022-01-04 | Derrick Corporation | Method and apparatus for screening |
| FI12523U1 (en) * | 2018-10-04 | 2019-12-13 | Derrick Corp | Screen basket apparatus, screening cartridge assembly and screen assembly |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5735409A (en) * | 1994-10-05 | 1998-04-07 | Trellex Ab | Screen cloth element and screen cloth for making the same |
-
2005
- 2005-09-09 RU RU2007114078/03A patent/RU2007114078A/en unknown
- 2005-09-09 ZA ZA200702776A patent/ZA200702776B/en unknown
- 2005-09-09 CN CN200580031058.1A patent/CN101018618B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5735409A (en) * | 1994-10-05 | 1998-04-07 | Trellex Ab | Screen cloth element and screen cloth for making the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109070139A (en) * | 2016-05-03 | 2018-12-21 | M-I有限公司 | For fastening the equipment, system and method for sieve on rotary flat screen |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200702776B (en) | 2008-12-31 |
| RU2007114078A (en) | 2008-10-27 |
| CN101018618A (en) | 2007-08-15 |
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Owner name: METSO MINERAL (SWEDEN) CORPORATION Free format text: FORMER OWNER: METSO MINERALS WEAR PROT AB Effective date: 20130412 |
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