WO1993023170A1 - Dispositif pour le broyage selectif et le nettoyage de tubes cathodiques - Google Patents

Dispositif pour le broyage selectif et le nettoyage de tubes cathodiques Download PDF

Info

Publication number
WO1993023170A1
WO1993023170A1 PCT/DE1993/000435 DE9300435W WO9323170A1 WO 1993023170 A1 WO1993023170 A1 WO 1993023170A1 DE 9300435 W DE9300435 W DE 9300435W WO 9323170 A1 WO9323170 A1 WO 9323170A1
Authority
WO
WIPO (PCT)
Prior art keywords
picture tubes
washing liquid
pressure
base plate
screen
Prior art date
Application number
PCT/DE1993/000435
Other languages
German (de)
English (en)
Inventor
Rolf Braach
Hermann Grund
Original Assignee
Rolf Braach
Hermann Grund
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
Priority claimed from DE9206668U external-priority patent/DE9206668U1/de
Application filed by Rolf Braach, Hermann Grund filed Critical Rolf Braach
Publication of WO1993023170A1 publication Critical patent/WO1993023170A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/52—Recovery of material from discharge tubes or lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
    • B02C19/0068—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for specially adapted for breaking-up fluorescent tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
    • B03B9/062—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial the refuse being glass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/60—Glass recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]

Definitions

  • the present invention relates to a device for selective comminution and for cleaning picture tubes.
  • Television and computer picture tubes essentially consist of a screen part and a funnel neck part, these essential components of the picture tubes generally being composed of different types of glass.
  • the inside of the screen glass part has a phosphor coating which contains heavy metals, in particular cadmium.
  • CH-PS 483 877 describes a device for crushing glass bottles with a hydraulic press and a movable pressure plate connected to the hydraulic cylinder with some sharp breaking edges, as well as a fixed counter plate arranged opposite this pressure plate.
  • the present invention is therefore based on the object of providing a simple device for selectively comminuting picture tubes and for removing the coating on the screen part thereof.
  • This object is achieved according to the invention by a device according to claim 1.
  • Preferred embodiments of the device according to the invention are specified in the subclaims.
  • the invention accordingly relates to a device for the selective comminution and cleaning of picture tubes with (A) a device for the selective comminution of picture tubes 11, comprising a hydraulic press with a movable pressure plate 2 connected to a hydraulic cylinder 1 and one below the
  • REPLACEMENT LEAF Pressure plate 2 arranged fixed base plate 3, wherein a pressure distribution template 9 is attached to the side of the pressure plate 2 facing the base plate 3 and the base plate 3 has an opening 4 for receiving the funnel neck 11a of picture tubes 11, and (B) a device for removal the coating on the inside of the screen part 11b of the picture tubes 11, comprising a washstand 13, at least one wash nozzle 14 arranged below the washstand 13, a storage container 15 for washing liquid, a high arranged between the storage container 15 and the washing nozzle 14 - Pressure pump 16 for supplying fresh washing liquid from the storage container 16 via a line 17 to the washing nozzle 14 via a line 18, a filter device 19 arranged between the washing table 13 and the storage container 14, a line 20 for supplying used washing liquid from the washing table 13 to the filter device 19 and a Lei device 21 for supplying cleaned washing liquid from the filter device 19 to the storage container 15.
  • the device according to the invention makes it possible for the first time to selectively separate the two firmly connected glass parts of picture tubes, namely the funnel neck part and the screen glass part, from one another by means of a simple pressing process, the funnel glass part being comminuted into smaller book pieces while the screen glass part being intact is retained and the coating on the inside of the intact shielding glass part is removed by means of a simple cleaning process, the washing liquid used in this process being conducted in a closed circuit.
  • the pressure plate and the base plate are suitably arranged horizontally.
  • the hydraulically driven pressure plate is slowly moved towards the base plate during operation of the device.
  • the picture tubes to be treated are placed between the two plates so that their open funnel neck protrudes downward through the opening in the base plate.
  • a pressure distribution template is attached to the lower side of the movable pressure plate, which is made of a solid, but to a limited extent elastic material. Spread out the template the pressure on the glass surface of the screen part in such a way that it does not come under tension during the pressing process and therefore remains intact.
  • the template is advantageously shaped in such a way that it forms the concave counterpart for the convex curvature of the screen of picture tubes.
  • the edge of the opening in the base plate is preferably provided with teeth.
  • the opening is a very effective bursting aid.
  • the crushing device provided in the device according to the invention makes it possible for the first time to keep the screen glass part intact when crushing picture tubes, so that it is now possible to remove the phosphor coating on the inside of the screen glass part by suitable further treatment and to recycle the glass .
  • the undestroyed screen glass part remaining on the base plate after the pressing process is removed manually or by means of an automatic gripping device and fed to the device for removing the coating on the screen glass part for further treatment.
  • the funnel neck glass already obtained in small fragments during pressing can be collected in collection vessels directly under the base plate and recycled.
  • the comminution device used in the device according to the invention can preferably only be started by means of a switch which has to be operated with two hands.
  • the comminution device is preferably surrounded by movable safety disks and should only be operable if the safety disks are lowered to below the base plate.
  • the movably operated press plate should move up again immediately after releasing the two hand switches.
  • the screen glass part is placed on the washstand with the coated side down.
  • the actual cleaning area is located approximately in the center of the washbasin.
  • one or more washing nozzles which are preferably three-dimensionally movable, so that they can be guided in both the horizontal and vertical directions.
  • a plurality of nozzles are arranged with their opening facing upwards along a rail which can be rotated around its center in the horizontal direction and can also be moved in the vertical direction. Washing liquid is fed from a storage container to the washing nozzles via a high-pressure pump.
  • the washing liquid is suitable as the washing liquid for the purposes of the invention.
  • the working pressure can be in a suitable manner in the range of about 1 to 20 MPa due to a stepless pressure regulation and, depending on the electrical connection value of the high-pressure pump.
  • the washing liquid is thus directed in the form of one or more high-pressure jets at a pressure of, for example, 10 MPa onto the coating of the screen glass, the coating being physically detached from the screen glass. Since the coating material is insoluble in the washing liquid, in particular water, it remains in the liquid as a suspended matter.
  • the cleaning device provided according to the invention further comprises a filter device arranged between the washstand and the storage container, in which the coating materials dispersed in the used washing liquid are separated and collected.
  • the filter device can have a pre-separator in the form of a coarse filter, for retaining coarse particles, such as glass, metal or plastic fragments, contained in the used washing liquid.
  • a filter bag made of a fabric with a mesh size of up to 1 ⁇ , for example, is suitable as a filter for the detached coating material. When saturated with the retained sludge-like coating material, the filter bag is replaced. The fine sludge can be dried and used as powder for proper disposal or recycling.
  • the washing liquid passing through the filter device is fed to the storage container via a line, so that the washing liquid is conducted in a closed circuit.
  • the storage container has a volume of approximately 1,000 l as a collecting reservoir for the washing liquid.
  • the washstand can be equipped with a conveyor device, for example a conveyor belt or a roller belt for automatic feeding and for removing the screen parts. During automatic transport, the screen glass part is placed on the conveyor belt and automatically fed to the cleaning area. After the coating has been completely washed off, the cleaned screen glass is transported on for removal.
  • a cover for example made of a transparent plastic material, is suitably provided in the center of the washstand as a splash guard.
  • FIG. 1 shows a schematic representation of the front of the shredding device used in the device according to the invention:
  • Figure 2 is a schematic representation of devices for fastening the pressure plate to the hydraulic cylinder.
  • Fig. 3 is a separately shown pressure compensation template
  • Fig. 4 is a plan view of the bottom plate with an opening
  • FIG. 6 shows a schematic representation of a top view of the device for removing the coating used according to the invention.
  • FIG. 7 shows a schematic illustration of the front of a washstand used in the device according to FIG. 6.
  • FIGS. 1 to 5 The operation of the comminution device used according to the invention is explained in more detail with reference to FIGS. 1 to 5.
  • a picture tube 11 as shown in FIGS. 1 and 5 is placed on the base plate 3 such that the funnel part 1 la of the picture tube projects through the opening 4.
  • the pressure plate 2 is slowly moved hydraulically downwards at a constant speed.
  • the pressure compensation template 9 attached to the pressure plate 2 adjusts the picture tube during the slow downward movement so that the inside curvature of the template 9 adapts to the outside curvature of the screen.
  • a slight pressure builds up, under which the funnel glass part bursts into small pieces, but the screen part remains undamaged.
  • the hydraulic cylinder 1 is connected to a rod 7 which has an eyelet on the side facing the pressure plate 2.
  • the attachment to the pressure plate 2 is suitably carried out by means of a bolt 6, which in turn is pushed through two loops 7a.
  • bores 8 At the marked locations in the pressure plate 2 there are bores 8 which can accommodate the pins 10 of the template, as shown in FIG. 3.
  • the pressure plate 2 is suspended in a freely movable manner and, without being able to tilt, moves up or down at a distance of approximately 1.5 cm from the holding profiles 5 of the press.
  • the holding profiles 5 are suitably designed as double T-beams.
  • In the middle of the fixed base plate 3 there is an opening 4, the edges of which are serrated, as shown in FIG.
  • the funnel neck glass obtained in small fragments during operation of the device can, as shown in FIG. 5, be collected directly under the base plate 3 in a collecting container 12 and transported away in this.
  • the screen part 1 lb which remained intact when the picture tube was comminuted is placed on the washstand 13 with the coated side facing downward, as shown in FIGS. 6 and 7.
  • the support of the wash basin 13 is designed, for example, as a grating or grating to allow washing liquid to pass through the wash nozzles 14 arranged below the wash basin 13. If the screen part 11b is in the center of the washstand 13, the cover 23 serving as a splash guard is closed.
  • the high-pressure pump 16 presses the washing liquid supplied from the storage container 15 via line 17 via line 18, which is, for example, a high-pressure hose, to the washing nozzles 14
  • the high-pressure liquid jet emerging from the movable nozzles 14 replaces the phosphor coating present on the inside of the screen part 1 lb.
  • the used washing liquid with the coating material particles dispersed therein collects in the collecting basin 24 located below the wash basin 13 and is sucked from there via line 20 to the filter device 19.
  • the coating material particles collect in the filter device 19 as fine sludge.
  • the filtered washing liquid is fed via line 21 to the storage container 15, so that the washing liquid circulates in a closed circuit.
  • the screen part 1 lb cleaned in this way is removed from the washstand.
  • the wash basin 13 can be equipped with a conveyor device 22, for example a conveyor belt for automatically feeding the screen parts and for removing the cleaned screen parts 1 lb. '
  • the device according to the invention is not limited to the preferred embodiments explained above.
  • other materials with different configurations can be used to reinforce the components.
  • extensions and modifications of the device are possible, for example to make the supply and removal process of the tubes to be crushed or the supply and removal process of the screen parts to be cleaned automated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Les méthodes d'élimination pour tubes cathodiques connues jusqu'ici entraînent un gaspillage de matières premières et ne peuvent se justifier du point de vue écotoxicologique en raison de l'enduit fluorescent dont sont revêtus les tubes cathodiques. Ce nouveau dispositif doit permettre de broyer sélectivement les tubes cathodiques de manière simple et d'éliminer l'enduit appliqué sur la partie écran. Ce dispositif comporte un système qui permet le broyage sélectif de tubes cathodiqes (11) au moyen d'une presse hydraulique qui broie la partie de verre en entonnoir (11a) tandis que la partie de verre formant l'écran (11b) reste intacte. La partie écran (11b) est alors conduite vers un dispositif de nettoyage (13) l'enduit intérieur est enlevé par lavage au moyen d'un détergent liquide projeté par des buses haute pression (14). Le matériau de revêtement est ensuite séparé par filtrage (19), tandis que le détergent est remis en circulation dans un circuit fermé. L'invention peut s'appliquer au recyclage de tubes cathodiques.
PCT/DE1993/000435 1992-05-15 1993-05-14 Dispositif pour le broyage selectif et le nettoyage de tubes cathodiques WO1993023170A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEG9206668.2U 1992-05-15
DE9206668U DE9206668U1 (fr) 1992-05-15 1992-05-15
DE19924241331 DE4241331C1 (de) 1992-05-15 1992-12-08 Vorrichtung zur selektiven Zerkleinerung und zur Reinigung von Bildröhren
DEP4241331.1 1992-12-08

Publications (1)

Publication Number Publication Date
WO1993023170A1 true WO1993023170A1 (fr) 1993-11-25

Family

ID=25921115

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1993/000435 WO1993023170A1 (fr) 1992-05-15 1993-05-14 Dispositif pour le broyage selectif et le nettoyage de tubes cathodiques

Country Status (3)

Country Link
AU (1) AU4059293A (fr)
DE (1) DE4241331C1 (fr)
WO (1) WO1993023170A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2739346A1 (fr) * 1995-09-29 1997-04-04 Renault Dispositif de recuperation du materiau constitutif de la vitre d'un ouvrant de vehicule automobile tel qu'un hayon
EP1302966A1 (fr) * 2001-10-09 2003-04-16 Matsushita Electric Industrial Co., Ltd. Procédé et appareil pour enlever une couche et procédé de fabrication d'un panneau d'affichage
WO2009090475A2 (fr) * 2007-12-21 2009-07-23 Highmark Renewables Research Corp. Appareil, procédés et systèmes pour manipuler et traiter des déchets
US7927491B2 (en) 2007-12-21 2011-04-19 Highmark Renewables Research Limited Partnership Integrated bio-digestion facility
CN111940032A (zh) * 2020-08-04 2020-11-17 徐德锋 一种医用玻璃用破碎装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3714075A1 (fr) 2017-11-21 2020-09-30 Gamma R&D B.V. Procédé de séparation de revêtement à partir de déchets de verre revêtus et appareil approprié à cet effet
DE102020202428A1 (de) 2020-02-26 2021-08-26 Dehn Se + Co Kg Überspannungsschutzvorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293341A (en) * 1941-06-04 1942-08-18 Hoiby Stanley Bottle breaker
DE1233341B (de) * 1966-05-18 1967-02-02 Armaturenwerk Niederscheld G M Vorrichtung zur Aufbereitung von Haushaltsabfaellen
CH483877A (de) * 1968-02-27 1970-01-15 Verzinkerei Zug Ag Abfallaufbereiter insbesondere für gewerblichen und Haushaltsgebrauch
DE3412767A1 (de) * 1984-04-05 1985-10-17 Bbc Brown Boveri & Cie Verfahren und vorrichtung zur vernichtung und entsorgung von entladungslampen
DE3901842A1 (de) * 1989-01-23 1990-08-09 Zueblin Ag Verfahren zur trennung von bildroehrenglas von bildroehren und dessen reinigung sowie eine vorrichtung zur durchfuehrung des verfahrens
DE4003497A1 (de) * 1989-01-23 1991-08-08 Zueblin Ag Verfahren zur trennung von bildroehrenglas von bildroehren und dessen reinigung sowie eine vorrichtung zur durchfuehrung des verfahrens

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293341A (en) * 1941-06-04 1942-08-18 Hoiby Stanley Bottle breaker
DE1233341B (de) * 1966-05-18 1967-02-02 Armaturenwerk Niederscheld G M Vorrichtung zur Aufbereitung von Haushaltsabfaellen
CH483877A (de) * 1968-02-27 1970-01-15 Verzinkerei Zug Ag Abfallaufbereiter insbesondere für gewerblichen und Haushaltsgebrauch
DE3412767A1 (de) * 1984-04-05 1985-10-17 Bbc Brown Boveri & Cie Verfahren und vorrichtung zur vernichtung und entsorgung von entladungslampen
DE3901842A1 (de) * 1989-01-23 1990-08-09 Zueblin Ag Verfahren zur trennung von bildroehrenglas von bildroehren und dessen reinigung sowie eine vorrichtung zur durchfuehrung des verfahrens
DE4003497A1 (de) * 1989-01-23 1991-08-08 Zueblin Ag Verfahren zur trennung von bildroehrenglas von bildroehren und dessen reinigung sowie eine vorrichtung zur durchfuehrung des verfahrens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 123 (E-178)(1268) 27. Mai 1983 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2739346A1 (fr) * 1995-09-29 1997-04-04 Renault Dispositif de recuperation du materiau constitutif de la vitre d'un ouvrant de vehicule automobile tel qu'un hayon
WO1997012698A1 (fr) * 1995-09-29 1997-04-10 Renault Dispositif de recuperation du materiau constitutif de la vitre d'un ouvrant de vehicule automobile tel qu'un hayon
EP1302966A1 (fr) * 2001-10-09 2003-04-16 Matsushita Electric Industrial Co., Ltd. Procédé et appareil pour enlever une couche et procédé de fabrication d'un panneau d'affichage
US6800008B2 (en) 2001-10-09 2004-10-05 Matsushita Electric Industrial Co., Ltd. Method and apparatus for removing film and method for manufacturing display panel
WO2009090475A2 (fr) * 2007-12-21 2009-07-23 Highmark Renewables Research Corp. Appareil, procédés et systèmes pour manipuler et traiter des déchets
WO2009090475A3 (fr) * 2007-12-21 2009-09-03 Highmark Renewables Research Corp. Appareil, procédés et systèmes pour manipuler et traiter des déchets
US7771598B2 (en) 2007-12-21 2010-08-10 Highmark Renewables Research Limited Partnership Apparatus, methods and systems for handling and processing waste material
US7927491B2 (en) 2007-12-21 2011-04-19 Highmark Renewables Research Limited Partnership Integrated bio-digestion facility
US8017013B2 (en) 2007-12-21 2011-09-13 Highmark Renewables Research Limited Partnership Apparatus, methods and systems for handling and processing waste material
US8308945B2 (en) 2007-12-21 2012-11-13 Highmark Renewables Research Limited Partnership Integrated bio-digestion facility
CN111940032A (zh) * 2020-08-04 2020-11-17 徐德锋 一种医用玻璃用破碎装置

Also Published As

Publication number Publication date
AU4059293A (en) 1993-12-13
DE4241331C1 (de) 1994-01-05

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