EP0316461B1 - Vibratory screen - Google Patents

Vibratory screen Download PDF

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Publication number
EP0316461B1
EP0316461B1 EP87116819A EP87116819A EP0316461B1 EP 0316461 B1 EP0316461 B1 EP 0316461B1 EP 87116819 A EP87116819 A EP 87116819A EP 87116819 A EP87116819 A EP 87116819A EP 0316461 B1 EP0316461 B1 EP 0316461B1
Authority
EP
European Patent Office
Prior art keywords
section
vibrators
housing
screen
sieve
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
EP87116819A
Other languages
German (de)
French (fr)
Other versions
EP0316461A1 (en
Inventor
Ivan Vassilev Dipl.-Ing. Genev
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.)
INSTITUT PO TSCHERNA METALURGIA
Original Assignee
INSTITUT PO TSCHERNA METALURGIA
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 INSTITUT PO TSCHERNA METALURGIA filed Critical INSTITUT PO TSCHERNA METALURGIA
Priority to IN822/MAS/87A priority Critical patent/IN170781B/en
Priority to EP87116819A priority patent/EP0316461B1/en
Priority to DE8787116819T priority patent/DE3771722D1/en
Priority to AT87116819T priority patent/ATE65434T1/en
Priority to US07/158,191 priority patent/US4855039A/en
Publication of EP0316461A1 publication Critical patent/EP0316461A1/en
Application granted granted Critical
Publication of EP0316461B1 publication Critical patent/EP0316461B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • 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
    • 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
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens

Definitions

  • the invention relates to a vibrating screen consisting of a housing with screen surfaces which are arranged at an angle to one another and with vibrators.
  • Vibration sieves of this type are used for granulometric separation and sifting of bulk material, in particular in the mining and processing industry and in the construction industry.
  • a device known from SU-A-466055 for sifting bulk material consists of a housing with sieve surfaces arranged one below the other, which have different inclinations in the direction of movement of the bulk material.
  • the housing is suspended from an immovable frame by means of flexible connections.
  • a vibrator is attached to the housing.
  • the sighting can be carried out only very slowly and inadequately.
  • the structure of the device is complicated and it is difficult to operate.
  • the dimensions of the facility are very large.
  • the invention has for its object to build the vibrating screen of the generic type so that it has high effectiveness and productivity and is easy to use and maintain.
  • the vibrating sieve of the generic type in which the housing consists of individual independent sections with sieve surfaces arranged one below the other, and each section is suspended on a frame by means of flexible connections, that the vibrators are attached to each section and that the sieve surfaces of the individual sections have different inclinations and widths in the direction of movement of the material to be screened.
  • the advantage of the vibrating screen according to the invention lies in the higher effectiveness of the screening, which is a result of the different widths and inclinations of the screen surfaces of the individual sections.
  • the technical parameters of each section can be optimally regulated individually using the vibrators, so that the sieve as a whole can work with greater effectiveness.
  • the vibrating sieve shown in FIGS. 1 and 2 consists of a housing with sieve surfaces which form an angle with one another, and of vibrators.
  • the housing is divided into individual, independent sections 1 and 2 with sieve surfaces 3 arranged one below the other, each section 1 and 2 being suspended from a frame 4 by means of flexible elements 5.
  • Vibrators 6 are attached to each section 1 or 2.
  • the screen surfaces 3 of the individual sections 1 and 2 are arranged with different inclinations and different widths in the direction of movement of the material to be screened.
  • the facility has an inlet opening 7 and outlet openings 8.
  • the vibrating screen works as follows: The material to be screened is poured through the inlet opening 7 onto the upper screen surface 3 of section 1. As a result of the high-frequency vibrations, the material is moved over the screen surfaces 3 and separated into fractions, the smaller pieces sinking and the larger pieces rising to the surface of the goods. The material separated in this way reaches the second section 2 and the subsequent sections with a larger width and inclination of the screen surfaces and a higher vibration frequency. In this way, the viewing process is accelerated, without the need for an additional increase in the overall length of the screen. The material viewed moves from section to section in sequence over the sieve surfaces and bottoms to the outlet openings 8 of the last section 2. Each section is individually connected to the common frame 4 via its own flexible elements 5. Since each section is driven by an independent vibrator 6, it is possible to optimize the operating conditions individually for each section so that maximum operating effectiveness of the screen as a whole is achieved.

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  • Combined Means For Separation Of Solids (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

A vibrating screen which comprises a housing having screening surfaces, the surfaces forming an angle with respect to each other, and vibrators. The housing consists of separate sections having screening surfaces arranged, one underneath the other, inside of each section. Each section is suspended to a frame by means of flexible joints. Vibrators are mounted to each section. The screening surfaces of the separate sections are arranged at different inclinations and have different widths in the downward direction of motion of the material passing through the vibrating screen device.

Description

Die Erfindung betrifft ein Vibrationssieb, bestehend aus einem Gehäuse mit Sieboberflächen, die im Winkel zueinander angeordnet sind, und mit Vibratoren.The invention relates to a vibrating screen consisting of a housing with screen surfaces which are arranged at an angle to one another and with vibrators.

Derartige Vibrationssiebe werden zum granulometrischen Trennen und Sichten von Schüttgut, insbesondere in der Bergbau- und Aufbereitungsindustrie und in der Bauindustrie verwendet.Vibration sieves of this type are used for granulometric separation and sifting of bulk material, in particular in the mining and processing industry and in the construction industry.

Eine aus der SU-A-466055 bekannte Einrichtung für das Sichten von Schüttgut besteht aus einem Gehäuse mit darin untereinander angeordneten Sieboberflächen, die unterschiedliche Neigungen in Bewegungsrichtung des Schüttgutes haben. Das Gehäuse ist mittels flexibler Verbindungen an einem unbeweglichen Gestell aufgehängt. An dem Gehäuse ist ein Vibrator angebracht.A device known from SU-A-466055 for sifting bulk material consists of a housing with sieve surfaces arranged one below the other, which have different inclinations in the direction of movement of the bulk material. The housing is suspended from an immovable frame by means of flexible connections. A vibrator is attached to the housing.

Mit der bekannten Einrichtung läßt sich das Sichten nur sehr langsam und unzureichend durchführen. Außerdem ist der Aufbau der Einrichtung kompliziert und ihre Bedienung schwierig. Zudem sind die Abmessungen der Einrichtung sehr groß.With the known device, the sighting can be carried out only very slowly and inadequately. In addition, the structure of the device is complicated and it is difficult to operate. In addition, the dimensions of the facility are very large.

Der Erfindung liegt die Aufgabe zugrunde, das Vibrationssieb der gattungsgemäßen Art so zu bauen, daß es eine hohe Effektivität und Produktivität hat und einfach zu bedienen und instandzuhalten ist.The invention has for its object to build the vibrating screen of the generic type so that it has high effectiveness and productivity and is easy to use and maintain.

Diese Aufgabe wird durch das Vibrationssieb der gattungsgemäßen Art gelöst, bei welchem das Gehäuse aus einzelnen selbständigen Sektionen mit darin untereinander angeordneten Sieboberflächen besteht, und jede Sektion mittels flexibler Verbindungen an einem Gestell aufgehängt ist, daß die Vibratoren an jeder Sektion angebracht sind und daß die Sieboberflächen der einzelnen Sektionen in Bewegungsrichtung des zu siebenden Gutes unterschiedliche Neigungen und Breiten aufweisen.This object is achieved by the vibrating sieve of the generic type, in which the housing consists of individual independent sections with sieve surfaces arranged one below the other, and each section is suspended on a frame by means of flexible connections, that the vibrators are attached to each section and that the sieve surfaces of the individual sections have different inclinations and widths in the direction of movement of the material to be screened.

Der Vorteil des erfindungsgemäßen Vibrationssiebs liegt in der höheren Effektivität des Sichtens, was ein Ergebnis der unterschiedlichen Breiten und Neigungen der Sieboberflächen der einzelnen Sektionen ist. Die technischen Parameter einer jeden Sektion können mit Hilfe der Vibratoren einzeln optimal reguliert werden, so daß das Sieb als Ganzes mit höherer Effektivität arbeiten kann.The advantage of the vibrating screen according to the invention lies in the higher effectiveness of the screening, which is a result of the different widths and inclinations of the screen surfaces of the individual sections. The technical parameters of each section can be optimally regulated individually using the vibrators, so that the sieve as a whole can work with greater effectiveness.

Anhand einer Zeichnung wird ein Ausführungsbeispiel der Erfindung näher erläutert. Es zeigt:

  • Fig. 1 einen Längsschnitt durch ein Vibrationssieb und
  • Fig. 2 eine Draufsicht auf das Vibrationssieb von Fig. 1.
An exemplary embodiment of the invention is explained in more detail with reference to a drawing. It shows:
  • Fig. 1 shows a longitudinal section through a vibrating screen and
  • FIG. 2 is a top view of the vibrating screen of FIG. 1.

Das in Fig. 1 und 2 gezeigte Vibrationssieb besteht aus einem Gehäuse mit Sieboberflächen, die einen Winkel miteinander einschließen, und aus Vibratoren. Das Gehäuse ist in einzelne selbständige Sektionen 1 und 2 mit darin untereinander angeordneten Sieboberflächen 3 aufgeteilt, wobei jede Sektion 1 bzw. 2 mittels flexibler Elemente 5 an einem Gestell 4 aufgehängt ist. An jeder Sektion 1 bzw. 2 sind Vibratoren 6 angebracht. Die Sieboberflächen 3 der einzelnen Sektionen 1 und 2 sind mit unterschiedlichen Neigungen und unterschiedlichen Breiten in Bewegungsrichtung des zu siebenden Gutes angeordnet. Die Einrichtung besitzt eine Einlaßöffnung 7 und Auslaßöffnungen 8.The vibrating sieve shown in FIGS. 1 and 2 consists of a housing with sieve surfaces which form an angle with one another, and of vibrators. The housing is divided into individual, independent sections 1 and 2 with sieve surfaces 3 arranged one below the other, each section 1 and 2 being suspended from a frame 4 by means of flexible elements 5. Vibrators 6 are attached to each section 1 or 2. The screen surfaces 3 of the individual sections 1 and 2 are arranged with different inclinations and different widths in the direction of movement of the material to be screened. The facility has an inlet opening 7 and outlet openings 8.

Das Vibrationssieb arbeitet folgendermaßen:
Das zu siebende Gut wird durch die Einlaßöffnung 7 auf die obere Sieboberfläche 3 der Sektion 1 geschüttet. Als Ergebnis der Hochfrequenzvibrationen erfolgt eine Bewegung des Gutes über die Sieboberflächen 3 und dessen Trennung in Fraktionen wobei die kleineren Stücke absinken, und die größeren Stücke zur Oberfläche des Gutes aufsteigen. Das auf diese Weise getrennte Gut gelangt in die zweite Sektion 2 und in die nachfolgenden Sektionen mit größerer Breite und Neigung der Sieboberflächen und höherer Vibrationsfrequenz. Auf diese Weise wird der Sichtvorgang beschleunigt, und zwar ohne daß eine zusätzliche Vergrößerung der Gesamtlänge des Siebs erforderlich ist. Das gesichtete Gut bewegt sich von Sektion zu Sektion der Reihe nach über die Sieboberflächen und Böden zu den Auslaßöffnungen 8 der letzten Sektion 2. Jede Sektion ist einzeln über eigene flexible Elemente 5 mit dem gemeinsamen Gestell 4 verbunden. Da jede Sektion von einem selbständigen Vibrator 6 angetrieben wird, ist es möglich, die Betriebsbedingungen einzeln für jede Sektion so zu optimieren, daß eine maximale Betriebseffektivität des Siebs als Ganzes erzielt wird.The vibrating screen works as follows:
The material to be screened is poured through the inlet opening 7 onto the upper screen surface 3 of section 1. As a result of the high-frequency vibrations, the material is moved over the screen surfaces 3 and separated into fractions, the smaller pieces sinking and the larger pieces rising to the surface of the goods. The material separated in this way reaches the second section 2 and the subsequent sections with a larger width and inclination of the screen surfaces and a higher vibration frequency. In this way, the viewing process is accelerated, without the need for an additional increase in the overall length of the screen. The material viewed moves from section to section in sequence over the sieve surfaces and bottoms to the outlet openings 8 of the last section 2. Each section is individually connected to the common frame 4 via its own flexible elements 5. Since each section is driven by an independent vibrator 6, it is possible to optimize the operating conditions individually for each section so that maximum operating effectiveness of the screen as a whole is achieved.

Claims (1)

  1. A vibratory screen, consisting of a housing with sieve surfaces, which are arranged at an angle relative to each other, and with vibrators, characterised in that the housing consists of individual sections (1, 2) with sieve surfaces (3) arranged therein one beneath the other, wherein each section (1, 2) is suspended by means of flexible elements (5) on a frame (4), in that the vibrators (6) are attached to each section (1, 2), and in that the sieve surfaces (3) of the individual sections (1, 2) have, in the direction of motion of the material to be screened, different inclinations and different widths.
EP87116819A 1987-11-13 1987-11-13 Vibratory screen Expired - Lifetime EP0316461B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IN822/MAS/87A IN170781B (en) 1987-11-13 1987-11-13
EP87116819A EP0316461B1 (en) 1987-11-13 1987-11-13 Vibratory screen
DE8787116819T DE3771722D1 (en) 1987-11-13 1987-11-13 VIBRATION SCREEN.
AT87116819T ATE65434T1 (en) 1987-11-13 1987-11-13 VIBRATION SCREEN.
US07/158,191 US4855039A (en) 1987-11-13 1988-02-19 Vibrating screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87116819A EP0316461B1 (en) 1987-11-13 1987-11-13 Vibratory screen

Publications (2)

Publication Number Publication Date
EP0316461A1 EP0316461A1 (en) 1989-05-24
EP0316461B1 true EP0316461B1 (en) 1991-07-24

Family

ID=8197444

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116819A Expired - Lifetime EP0316461B1 (en) 1987-11-13 1987-11-13 Vibratory screen

Country Status (5)

Country Link
US (1) US4855039A (en)
EP (1) EP0316461B1 (en)
AT (1) ATE65434T1 (en)
DE (1) DE3771722D1 (en)
IN (1) IN170781B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3903325A1 (en) * 1989-02-04 1990-08-09 Bezner Maschf METHOD FOR RECOVERING RECYCLED MATERIALS, IN PARTICULAR FROM CONSTRUCTION SITE WASTE AND SYSTEM FOR CARRYING OUT THE METHOD
NO177090C (en) * 1993-03-15 1995-07-19 Norsk Hydro As Separator for separation of fluidizable and non-fluidizable materials
SE507468C2 (en) * 1993-05-10 1998-06-08 Svedala Arbra Ab A vibrating screen
BR9500893A (en) * 1995-02-24 1997-04-29 Aco Paulista Sa Modular vibrating screen
DE60015863T2 (en) 1999-01-21 2005-12-01 Extec Screens And Crushers Ltd., Swadlincote screening device
US6250478B1 (en) * 1999-02-08 2001-06-26 C P Manufacturing Inc. Stepped disc screens of unequal inclination angles for conveying and grading recycling materials
ES2246211T3 (en) 2000-04-18 2006-02-16 Machinefabriek Bollegraaf Appingedam B.V. CONVEYOR FOR THE TRANSPORTATION OF BULK MATERIALS.
US7111739B2 (en) * 2002-07-26 2006-09-26 Sizetec, Inc. Wet fine particle sizing and separating apparatus
US8636150B1 (en) * 2010-07-06 2014-01-28 Dewar of Virginia, Inc. Screening apparatus
CN103041982A (en) * 2013-01-03 2013-04-17 无锡贝科机械有限公司 Vibrating screen
DE102016105094A1 (en) 2016-03-18 2017-09-21 Cl Schutzrechtsverwaltungs Gmbh Screening device for the generative production of components
DE102019102436A1 (en) * 2019-01-31 2020-08-06 Spaleck GmbH & Co. Kommanditgesellschaft Vibrating screening plant, consisting of at least two screening machines arranged in a row

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US808724A (en) * 1903-03-21 1906-01-02 John M Case Bolting-machine.
US1468005A (en) * 1922-01-30 1923-09-18 Joseph A Coyle Screening machine
US2058959A (en) * 1934-03-05 1936-10-27 F E Schundler & Co Inc Method of separating foreing matter from vermiculite
FR1044061A (en) * 1951-10-22 1953-11-13 Oscillating sieve, especially for granular materials
US3254765A (en) * 1964-03-23 1966-06-07 Mogensen Fredrik Kristian Screen classifiers
SU466055A1 (en) * 1969-05-05 1975-04-05 Предприятие П/Я В-2413 Vibrating screen
US3817376A (en) * 1970-04-16 1974-06-18 E Burstlein Screening process and apparatus
SU1080883A1 (en) * 1982-11-12 1984-03-23 Среднеазиатский Научно-Исследовательский И Проектно-Конструкторский Институт Пищевой Промышленности Apparatus for separating broken cotton seeds
DE3440403A1 (en) * 1984-11-06 1986-05-07 Mogensen Gmbh & Co Kg, 2000 Wedel METHOD AND DEVICE FOR CLEANING THE SCREEN BOTTOMS. FOR VIBRATION CLASSIFIERS

Also Published As

Publication number Publication date
EP0316461A1 (en) 1989-05-24
IN170781B (en) 1992-05-23
ATE65434T1 (en) 1991-08-15
DE3771722D1 (en) 1991-08-29
US4855039A (en) 1989-08-08

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