EP0667190B1 - Siebplatte und Verfahren zur Herstellung der Siebplatte - Google Patents

Siebplatte und Verfahren zur Herstellung der Siebplatte Download PDF

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Publication number
EP0667190B1
EP0667190B1 EP95890031A EP95890031A EP0667190B1 EP 0667190 B1 EP0667190 B1 EP 0667190B1 EP 95890031 A EP95890031 A EP 95890031A EP 95890031 A EP95890031 A EP 95890031A EP 0667190 B1 EP0667190 B1 EP 0667190B1
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EP
European Patent Office
Prior art keywords
impression
lines
line
embossing
impressions
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
Application number
EP95890031A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0667190A1 (de
Inventor
Erwin Ing. Zipfinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZIPFINGER AG
Original Assignee
ZIPFINGER AG
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3485944&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0667190(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ZIPFINGER AG filed Critical ZIPFINGER AG
Priority to SI9530278T priority Critical patent/SI0667190T1/sl
Publication of EP0667190A1 publication Critical patent/EP0667190A1/de
Application granted granted Critical
Publication of EP0667190B1 publication Critical patent/EP0667190B1/de
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4618—Manufacturing of screening surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4654—Corrugated Screening surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/469—Perforated sheet-like material

Definitions

  • the invention relates to a screen plate for flat screens or Sieve drums and sieve baskets at an angle to the plate level aligned holes that are in immediately successive Lines as contiguous in the longitudinal direction of each line
  • Expressions and impressions trained are, each with an expression and one in the longitudinal direction form a division after the line and the Expressions and imprints more directly connected Lines by half a division each Longitudinal direction of the rows are offset from each other and the The apex of each occurrence of a line in the sole of one Imprinting one immediately following in one direction Line merges and the holes on both sides of the transitions, each limited by an expression and an impression, are formed, with each expression and each impression of limited on both sides open cylindrical outer surface is.
  • Sieve plates are used for classifying pourable Material and used for crushing plastic masses.
  • the sieve plates come in their flat basic shape as flat screens and also bent into a cylinder jacket, as a screen drum or screen baskets.
  • Such baskets are, for example, in processing machines of the Raw material in brick making for crushing, Mixing and homogenizing building ceramic masses, in particular Clay with aggregates used.
  • the sieve baskets work with multi-arm spreaders that Rotate the inside of the sieve baskets and the material against the Press screen wall.
  • the sieve plates are aligned at an angle to the plate level Holes have features that face the front wear a semicircular hole and run into the Go over the sieve plate level. This hole shape is not ideal. The number of holes per unit area is small. Wanted to one uses circular cylindrical holes, then the expression would have to be significantly higher, resulting in heavy strain on the sieve would lead.
  • a screen basket for one Cross beater mill in particular for comminuting Wood chips known for the production of chips.
  • This sieve basket comprises cylindrically curved sieve plates with arrows to the longitudinal direction or direction of rotation lying slits that shape the shape from the sieve plate level. At a glance creates the impression of an expanded metal or a plate with ventilation slots.
  • the slots are elongated and have a lower edge that in the sieve plate level lies.
  • the top edge of each slot forms a straight edge that is also ground can.
  • Such a screen basket is constantly replacing regrind and new knives, like those at Knife ring cutters are known.
  • a screening device is known from DE A1 35 35 035. with the help of which one can sort out, for example Shrimp from the total volume of a fish can.
  • a drum is used, which in its outer surface tangentially aligned passage openings for Has shrimp.
  • One version is in the circumferential direction circular openings arranged one behind the other, the one another in the axial direction by partitions are separated.
  • the hole density per unit area is low.
  • in particular from Sieve plates alternate bends and bends one behind the other from, at the interfaces or transition points circular openings are created.
  • For classification serves a vibrating screen according to US Pat. No. 5,108,589, which has sheet-like overlapping sheets, which finger-like gates on their overlapping Have ends.
  • DE-C-285 821 relates to a sieve alternating between the two Sides pressed through conical depressions. In the Openings are at a distance from each other at the level of the sieve plate. It are shell-shaped forms and impressions, which are spaced apart by webs, each expression and each impression of an open cylindrical surface is limited. The distances on the one hand and the tiered Training in cross-section through the forms and impressions have an adverse effect on efficiency. This also applies to sieve formation according to US-A-2 237 491.
  • the invention aims at a sieve plate of the beginning described type, which is also bent into a sieve drum and can be used for sieve baskets, so to improve that cylindrical or polygons, e.g. six or octagonal holes result in a large hole density easily accessible per unit area of the sieve is.
  • This is made possible by the expressions and Have embossments in the direction transverse to the lines of surfaces, which are formed by parallel straight generatrices, which a wavy line based on arcs, for example Semicircles, or a polygon, for example of half Hexagons or octagons follow and that the transition from Crest of a stamping to the sole of a stamping stepless he follows.
  • the special geometry of the sieve plate especially the defined one Location and shape of the forms and impressions leads to a dense succession of holes, which increases efficiency elevated.
  • the formation of the surfaces is essential of the forms and impressions with surfaces that are formed by straight generatrices, which are a wavy line consequences.
  • the forms and impressions are then cylindrical surfaces, which are the plastic masses when pressed against the sieve already deform so that they are particularly easy through the holes can be pressed. This allows the drive power of rotating spreaders in clay preparation machines or the like e.g. be reduced in brick making.
  • the approximately tangential alignment of the cylinder surfaces and the hole axes reduces power loss and protects the screens.
  • a special embodiment is characterized in that that the expressions in that area of the apex, which is opposite the transitions to the bottom of the embossments, have a flattening. Especially when used of the sieve together with spreaders that run along the sieve surface the flattenings are advantageous. It this reduces the frictional resistance when operating a screening plant.
  • Fig. 1 shows a section a sieve plate looking in the axial direction of the Holes
  • Fig. 1a shows a variant
  • Fig. 2 shows a cross section along the line II-II in Fig. 1
  • Fig. 3 is an oblique view 1 and FIG. 4 a 2, but in the use position for a Plansieb.
  • a sieve plate 1 shows parallel lines 2, 3, 4, 5, in which versions 6 and impressions 7 lie next to one another, which continued manifestations 6 ' and 7 'etc. follow, so that there is a wavy line in Art a sine line along each line gives 2, 3, 4, 5.
  • a Characterization 6 forms with the subsequent impression 7 a division 8 in line 2.
  • the expression 9 and impression 10 of the adjacent row 3, in the the embossed features 9 'and the embossed features 10' follow are a half division from the divisions 8 moved to line 2. This phase shift applies in same sense from line to line, so that there is a pattern in the manner of offset corrugated metal strips results.
  • each impression 7 or 7 'of line 2 and each version 9 or 9 'of line 3 opens in each case a hole 11 made by the marginal edges of said impressions 7, 7 'and expressions 9, 9' is limited.
  • the Expressions 6, 6 'of line 2 go directly into the Impressions 10, 10 'over. 3 is the stepless Transition between the expression 6 'and the impression 10 by a dashed line at the apex of the expression 6 'and shown on the sole of the impression 10.
  • Fig. 4 shows the situation, but with an inventive Sieve plate in the extended position.
  • the streaking is done above the sieve plate 1 from left to right, or with a sieve drum formed from the sieve plate 1 by rotating the e.g. three-armed streak counter clockwise.
  • Streaking can be made easier and the Efficiency can be further improved if the characteristics, as in the expression 6 ′′, shown in FIG. 4, a Flattening 12 has. This moves the coating edge of the spreader closer to the screen plate surface. Here care must be taken to ensure that the homogenization and preparation of plastic masses for ceramic or Brick making a complete seal between Spreading edge and screen drum surface not desirable is. On the one hand, it is intended to homogenize material through the Holes 11 escape, on the other hand the remaining material transported along the channel-shaped impressions, drummed and finally afterwards when it homogenizes is, by one of the in the longitudinal direction or in the circumferential direction subsequent holes 11 are pressed.
  • the angle ⁇ (Fig. 4) of the inclination of the expressions 6, 6 'or 9, 9' and the impressions 7, 7 'or 10, 10' compared to the sieve plate level can depend on the peripheral speed a sieve drum can be selected. The higher the peripheral speed, the smaller dimension the angle ⁇ .

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Combined Means For Separation Of Solids (AREA)
EP95890031A 1994-02-10 1995-02-10 Siebplatte und Verfahren zur Herstellung der Siebplatte Expired - Lifetime EP0667190B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9530278T SI0667190T1 (sl) 1994-02-10 1995-02-10 Sejalna plošča in postopek izdelave sejalne plošče

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT265/94 1994-02-10
AT26594 1994-02-10
AT0026594A AT401018B (de) 1994-02-10 1994-02-10 Siebplatte und verfahren zur herstellung der siebplatte

Publications (2)

Publication Number Publication Date
EP0667190A1 EP0667190A1 (de) 1995-08-16
EP0667190B1 true EP0667190B1 (de) 1999-08-04

Family

ID=3485944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95890031A Expired - Lifetime EP0667190B1 (de) 1994-02-10 1995-02-10 Siebplatte und Verfahren zur Herstellung der Siebplatte

Country Status (6)

Country Link
EP (1) EP0667190B1 (sl)
AT (1) AT401018B (sl)
CZ (1) CZ30995A3 (sl)
DE (1) DE59506495D1 (sl)
SI (1) SI0667190T1 (sl)
SK (1) SK17795A3 (sl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103567145A (zh) * 2013-11-12 2014-02-12 成都科盛石油科技有限公司 一种石油钻井液用筛板
CN105817415A (zh) * 2016-04-29 2016-08-03 长兴谐达能源科技有限公司 一种生物质颗粒干燥筛选装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2347882A (en) * 1999-02-03 2000-09-20 Reekie Mfg Ltd Grading screen
CN103203323A (zh) * 2013-04-17 2013-07-17 天地（唐山）矿业科技有限公司 一种用于直线振动筛的筛面
CN104492699A (zh) * 2014-12-24 2015-04-08 锦州俏牌机械有限公司 波浪形筛片
CN108296158B (zh) * 2018-03-30 2023-05-16 遵义双河生物燃料科技有限公司 用于从生物燃料颗粒中去除硬质杂质的装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE285821C (sl) *
US2237491A (en) * 1938-09-20 1941-04-08 William H Kutz Shaker screen
NL183432C (nl) * 1984-10-04 1992-12-16 Sikke Koster Inrichting voor het uit een vangst waterdieren selecteren van garnalen.
US5108589A (en) * 1989-03-01 1992-04-28 General Kinematics Corporation Material separating apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103567145A (zh) * 2013-11-12 2014-02-12 成都科盛石油科技有限公司 一种石油钻井液用筛板
CN105817415A (zh) * 2016-04-29 2016-08-03 长兴谐达能源科技有限公司 一种生物质颗粒干燥筛选装置

Also Published As

Publication number Publication date
CZ30995A3 (en) 1996-01-17
AT401018B (de) 1996-05-28
SI0667190T1 (sl) 1999-10-31
ATA26594A (de) 1995-10-15
DE59506495D1 (de) 1999-09-09
SK17795A3 (en) 1996-02-07
EP0667190A1 (de) 1995-08-16

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