EP0096270B1 - Siebmaschine - Google Patents

Siebmaschine Download PDF

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Publication number
EP0096270B1
EP0096270B1 EP83105058A EP83105058A EP0096270B1 EP 0096270 B1 EP0096270 B1 EP 0096270B1 EP 83105058 A EP83105058 A EP 83105058A EP 83105058 A EP83105058 A EP 83105058A EP 0096270 B1 EP0096270 B1 EP 0096270B1
Authority
EP
European Patent Office
Prior art keywords
screening machine
planes
crosspieces
movement
screen
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
Application number
EP83105058A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0096270A3 (en
EP0096270A2 (de
Inventor
Kurt Hoppe
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.)
Hein Lehmann AG
Original Assignee
Hein Lehmann AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hein Lehmann AG filed Critical Hein Lehmann AG
Priority to AT83105058T priority Critical patent/ATE36975T1/de
Publication of EP0096270A2 publication Critical patent/EP0096270A2/de
Publication of EP0096270A3 publication Critical patent/EP0096270A3/de
Application granted granted Critical
Publication of EP0096270B1 publication Critical patent/EP0096270B1/de
Expired legal-status Critical Current

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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
    • B07B1/48—Stretching devices for screens
    • B07B1/485—Devices for alternately stretching and sagging screening surfaces

Definitions

  • the invention relates to a screening machine with a plurality of cross members arranged transversely to the screen material transport direction, parallel to one another, on or between which a flexible screen covering is fastened, the cross members movable relative to one another being assigned to at least two movement systems and being driven such that every second cross member is in the opposite direction than the intermediate crossmember moved.
  • Such screening machines operating according to the tensioning shaft principle are known (DE-PS-2 425 953).
  • the cross members of both movement systems are each fastened between two cheeks, both of which are moved in their longitudinal direction by an eccentric drive, so that the planes of movement of all carriers are parallel to the longitudinal direction of the cheeks and thus to the conveying direction of the material to be screened.
  • This movement of the crossbeams within the plane in which they are located achieves a movement of the material to be screened transversely to the plane of the screen only to the extent that the screen covering acts on the material to be screened by alternating bending and tensioning.
  • a targeted acceleration or braking of the material to be screened is not possible. Rather, the screenings are conveyed solely according to the inclination of the screening machine.
  • the object of the invention is to improve a screening machine of the type mentioned in such a way that an acceleration or reduction in the transport speed of the material to be screened can be achieved regardless of the inclination of the screening machine or the screening plane.
  • cross members move in separate, mutually parallel planes which are oblique to the screen material transport direction.
  • the mutually adjacent crossbeams no longer move directly towards and away from each other by the shortest route, but move parallel to one another in inclined planes, while still occupying a position of greatest proximity and a position of greatest distance, and in the first Position the sieve is bent and is taut in the second position.
  • all cross members lie in a single plane parallel to the screening machine.
  • the planes of movement of the cross beams with the planes of the support layers angle of 10 to 80 0, in particular 30 ° to 60 ° form.
  • a second sieve is attached to one of the movement systems above the sieve covering.
  • the second sieve does not require any additional actuation devices, but it is moved by the oblique shaking movement of one of the two systems in such a way that the material to be sieved is lifted up from the sieve covering and thus the second sieve not only protects and protects the first one but also itself classified. Furthermore, the second sieve can clean itself by this movement and thus also have small and precise sieve openings.
  • each movement system is each fastened between two cheeks or in a frame.
  • the second screen can be attached to one of the cheeks or frames.
  • a safe, structurally simple and free from harmful vibrations is achieved in that at least one of the movement systems, in particular its cheeks or frame, is driven via at least one push rod, the direction of the force of which runs through the center of gravity of the movement system. It also enables the mass forces to be absorbed completely by the push rod. An additional spring element between the actuated movement system and the drive is not necessary.
  • the first inner movement system 1 has two cheeks 1 made of U-shaped profiles, between which cross members 2 are fastened in parallel at regular intervals. Outside the cheeks 1, cheeks 3 are parallel to the inner cheeks 1 and carry cross members 4, which are arranged centrally between the cross members 2 at the same height.
  • the cross members 2, 4 thus alternate with each other and carry on their upper side a screen covering 13 which is attached to the cross members in a linear manner.
  • the cheeks 1 are mounted on the foundation via spring elements 6, the cheeks 3 are fastened to the respectively adjacent cheek 1 via pairs of link springs 7 or via rods which have joints on both sides.
  • tube supports 8, which serve as bearings for the springs 7, can protrude from the outside of the cheek.
  • the rods or springs 7 are arranged obliquely, in particular at an angle of 45 ° to the screen plane or to the planes in which the cross members lie.
  • a drive shaft 9 with an eccentric 10 is fastened, the eccentric actuating a push rod 11, the end opposite the eccentric is fastened to the cheek 1 and thus to the inner movement system I via a projecting arm 12.
  • the push rod 11 consisting of one or more leaf springs runs obliquely, in particular at an angle of 45 ° to the plane of the screen covering 13 or to the planes 14, 14 ', 14 "in which the cross members are located.
  • the push rod 11 is at right angles to the rods or springs 7.
  • the cross members thus alternately take the positions A, B and C shown in Fig. 3, so that the screen covering 13 is alternately pushed together and tensioned.
  • a sieve 17 is fastened, in particular as a protective deck, which lies between two cheeks 18.
  • the cheeks 18 are fastened directly on the cheeks 1 and follow the movements of the cheek 1.
  • the covering of the screen 17 is not alternately compressed and tensioned, but is only shaken in an oblique direction in accordance with the movement of the system I.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Eye Examination Apparatus (AREA)
  • Holo Graphy (AREA)
  • Glass Compositions (AREA)
  • Noodles (AREA)
  • Centrifugal Separators (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
EP83105058A 1982-06-05 1983-05-21 Siebmaschine Expired EP0096270B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83105058T ATE36975T1 (de) 1982-06-05 1983-05-21 Siebmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3221344A DE3221344C1 (de) 1982-06-05 1982-06-05 Siebmaschine
DE3221344 1982-06-05

Publications (3)

Publication Number Publication Date
EP0096270A2 EP0096270A2 (de) 1983-12-21
EP0096270A3 EP0096270A3 (en) 1985-07-03
EP0096270B1 true EP0096270B1 (de) 1988-09-07

Family

ID=6165465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105058A Expired EP0096270B1 (de) 1982-06-05 1983-05-21 Siebmaschine

Country Status (9)

Country Link
US (1) US4600506A (en:Method)
EP (1) EP0096270B1 (en:Method)
AT (1) ATE36975T1 (en:Method)
AU (1) AU560382B2 (en:Method)
BR (1) BR8302959A (en:Method)
DE (2) DE3221344C1 (en:Method)
IN (1) IN160081B (en:Method)
YU (1) YU124083A (en:Method)
ZA (1) ZA833635B (en:Method)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8431013D0 (en) * 1984-12-07 1985-01-16 British Petroleum Co Plc Desalting crude oil
DE3524895C1 (de) * 1985-07-12 1986-12-18 Hein, Lehmann AG, 4000 Düsseldorf Siebmaschine
AT390898B (de) * 1988-09-05 1990-07-10 Ife Gmbh Siebvorrichtung
DE50207040D1 (de) 2001-11-29 2006-07-06 Binder Co Ag Siebvorrichtung
GB2482686A (en) 2010-08-09 2012-02-15 Crs Ni Ltd Stationary wave separator
AT517501B1 (de) * 2015-07-21 2017-04-15 Binder + Co Ag Siebmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273711A (en) * 1966-09-20 Shuffle feed sorter with sliver ejection
DE1275339B (de) * 1967-07-13 1968-08-14 Albert Wehner Siebmaschine
ZA705727B (en) * 1970-01-16 1971-04-28 Chainbeldt R Inc Vibratory scissors grizzly
US3762547A (en) * 1972-03-19 1973-10-02 Improved Machinery Inc Vibrating separating apparatus having adjustable material advancing rate
DE2425953C3 (de) * 1974-05-30 1979-02-01 Hein, Lehmann Ag, 4000 Duesseldorf Niedrig bauende Siebmaschine
CA1107243A (en) * 1977-09-13 1981-08-18 Anthony J. Kent Spring-loaded screen clamping system in a vibratory sifting machine

Also Published As

Publication number Publication date
IN160081B (en:Method) 1987-06-27
DE3221344C1 (de) 1983-10-27
DE3377898D1 (en) 1988-10-13
US4600506A (en) 1986-07-15
YU124083A (en) 1986-02-28
EP0096270A3 (en) 1985-07-03
ATE36975T1 (de) 1988-09-15
EP0096270A2 (de) 1983-12-21
AU560382B2 (en) 1987-04-02
AU1507883A (en) 1983-12-08
BR8302959A (pt) 1984-02-07
ZA833635B (en) 1984-02-29

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