EP0140653A1 - Système de manipulation de déchets et de poussières - Google Patents

Système de manipulation de déchets et de poussières Download PDF

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Publication number
EP0140653A1
EP0140653A1 EP84307179A EP84307179A EP0140653A1 EP 0140653 A1 EP0140653 A1 EP 0140653A1 EP 84307179 A EP84307179 A EP 84307179A EP 84307179 A EP84307179 A EP 84307179A EP 0140653 A1 EP0140653 A1 EP 0140653A1
Authority
EP
European Patent Office
Prior art keywords
waste
dust
air flow
air
filter
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.)
Withdrawn
Application number
EP84307179A
Other languages
German (de)
English (en)
Inventor
Cas Nihot
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.)
NIHOT LUCHTTECHNIEKEN BV
Original Assignee
NIHOT LUCHTTECHNIEKEN BV
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 NIHOT LUCHTTECHNIEKEN BV filed Critical NIHOT LUCHTTECHNIEKEN BV
Publication of EP0140653A1 publication Critical patent/EP0140653A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/002—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using a central suction system, e.g. for collecting exhaust gases in workshops

Definitions

  • the present invention relates to a waste and dust handling system and is particularly applicable to the handling of paper waste and associated dust created by machines in the printing, book-binding and allied trades.
  • Dust handling systems which extract the air from a factory location, pass the air through a filter and then return the air to the factory.
  • the waste and dust handling system includes a ducting circuit connecting a waste container to a factory location where waste and dust is generated, and a fan creating an air flow in the ducting circuit to carry waste and dust therealong, the fan being arranged to separate the air flow into a major portion which is directed back to the factory space via a filter to remove any dust contained in the major portion, and into a minor portion which carries the waste and dust to the waste container where the waste and dust is deposited after which the minor portion of air flow is returned to the factory space.
  • the fan is of the centrifugal type with an internal scroll directing the major air flow to a radially inner outlet and the minor air flow to a radially outer outlet.
  • the waste and dust is separated from the minor air flow by a filter of the cyclone type which causes the waste to drop under gravity into the waste container, the dust being trapped in a filter located above the cyclone filter.
  • the factory layout 10 is shown with paper handling machines 12 such as printing or book-binding machines.
  • Solid paper waste and dust generated by the machines is pneumatically conveyed via dusting circuit 14 to a centrifugal fan 16 that separates the air flow into a major portion which is directed back to the factory space via outlet 18 and a filter 20 (to remove any dust contained in that major portion), and into a minor portion which carries the solid waste and dust along ducting 22 to a waste container 24, where the waste and dust is deposited by means of a filter 26 of the cyclone type.
  • the minor portion of the air flow is returned along ducting 28 back to the factory space; thus all the air extracted by the fan 16 is returned to the factory space.
  • the fan 16 (see Fig. 2) has an impellor (not shown) fitted with a conical boss to prevent the paper waste from 'balling-up'.
  • the fan has a single inlet 16a and an internal scroll 16b which creates the above mentioned major and minor air flows and directs the major air flow to a radially inner large outlet 16c and the minor air flow to a radially outer small outlet 16d.
  • the major portion may be in the range >50% to 70% of the total air flow, and preferably 60%.
  • the filter 20 consisting of a plurality of textile filter sleeves 20a through which the major air passes and which removes any dust therefrom prior to the air reaching outlet 18.
  • the upper closed ends of the sleeves are resiliently suspended from a bar connected to pneumatic actuators 30.
  • the sleeves can be shaken by automatic energisation of the actuators thereby shaking dust from the internal surfaces of the sleeves, the dust falling into the lowermost region of the filter from where it is conveyed by the minor air portion into ducting 22.
  • Ducting 22 carries solid paper waste and dust into the inlet 26a of cyclone filter 26 located outside the factory space.
  • Inlet 26a directs the minor air portion tangentially into the interior of the cyclone filter which includes a perforated metal cylinder and a perforated inverted cone 26b covering the upper end and having an open lower end 26c through which the solid paper waste drop freely under gravity.
  • Air and dust flowing upwardly through the perforations of the cyclone are directed through a plurality of textile filter sleeves 26d (similar to sleeves 20a) which separate the dust from the air flow before it is returned to the factory space.
  • the upward air flow in the cyclone filter is ensured by a balance fan 32. situated at the top of the filter and operable to maintain a slight negative pressure in the filter.
  • Solid paper waste and dust dropping under gravity from the filter 26 is directed to a waste storage bunker 34 situated directly beneath the filter 26.
  • a level of waste in the bunker reaches a preset level sensed by a level sensor (not shown), a compactor/baler 38 is activated to compress and compact the waste into the waste container 24.
  • a sensor on the baler will activate an alarm and/or activate an automatic change-over gate to direct further waste to a second or back-up container.

Landscapes

  • Cyclones (AREA)
  • Separating Particles In Gases By Inertia (AREA)
EP84307179A 1983-10-18 1984-10-18 Système de manipulation de déchets et de poussières Withdrawn EP0140653A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8327832 1983-10-18
GB838327832A GB8327832D0 (en) 1983-10-18 1983-10-18 Waste and dust handling system

Publications (1)

Publication Number Publication Date
EP0140653A1 true EP0140653A1 (fr) 1985-05-08

Family

ID=10550373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84307179A Withdrawn EP0140653A1 (fr) 1983-10-18 1984-10-18 Système de manipulation de déchets et de poussières

Country Status (2)

Country Link
EP (1) EP0140653A1 (fr)
GB (1) GB8327832D0 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332093A1 (fr) * 1988-03-05 1989-09-13 Al-Ko Entsorgungs-Geräte Und -Systeme Gmbh Dispositif d'évacuation du polluant
EP0574850A1 (fr) * 1992-06-17 1993-12-22 ABBPATENT GmbH Enlèvement de copeaux
AT405252B (de) * 1996-12-18 1999-06-25 Scheuch Alois Gmbh Ventilatoreinheit für absaugsysteme
CN102513324A (zh) * 2011-12-22 2012-06-27 葫芦岛市滨海宇通自动化控制有限公司 一种船用喷漆除尘装置
IT202000031853A1 (it) * 2020-12-22 2022-06-22 Edf Europe S R L Sistema di aspirazione e filtraggio di polveri in un impianto industriale, in particolare in un impianto di taglio e stampa di fogli di cartone ondulato

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB345120A (en) * 1929-06-10 1931-03-19 Oscar Simmen Improvements in or relating to centrifugal fans or blowers
GB558422A (en) * 1942-04-22 1944-01-05 Sturtevant Eng Co Ltd Improvements in or relating to induced draught fans and the cleaning of dust laden air or gas
CH274963A (fr) * 1948-08-13 1951-04-30 Panelve Inc Procédé pour capter les poussières se trouvant en suspension dans un fluide gazeux et dispositif pour la mise en oeuvre du procédé.
FR1279109A (fr) * 1961-01-23 1961-12-15 Ministerul Ind Bunurilor De Co Procédé et appareil pour la filtration de l'air dans les filatures
US3314098A (en) * 1964-09-14 1967-04-18 Kirk & Blum Mfg Co Dust collecting plenum installation
FR2347289A1 (fr) * 1976-04-06 1977-11-04 Zimmermann Azo Maschf Installation de transport pneumatique a aspiration pour alimenter plusieurs postes d'utilisation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB345120A (en) * 1929-06-10 1931-03-19 Oscar Simmen Improvements in or relating to centrifugal fans or blowers
GB558422A (en) * 1942-04-22 1944-01-05 Sturtevant Eng Co Ltd Improvements in or relating to induced draught fans and the cleaning of dust laden air or gas
CH274963A (fr) * 1948-08-13 1951-04-30 Panelve Inc Procédé pour capter les poussières se trouvant en suspension dans un fluide gazeux et dispositif pour la mise en oeuvre du procédé.
FR1279109A (fr) * 1961-01-23 1961-12-15 Ministerul Ind Bunurilor De Co Procédé et appareil pour la filtration de l'air dans les filatures
US3314098A (en) * 1964-09-14 1967-04-18 Kirk & Blum Mfg Co Dust collecting plenum installation
FR2347289A1 (fr) * 1976-04-06 1977-11-04 Zimmermann Azo Maschf Installation de transport pneumatique a aspiration pour alimenter plusieurs postes d'utilisation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332093A1 (fr) * 1988-03-05 1989-09-13 Al-Ko Entsorgungs-Geräte Und -Systeme Gmbh Dispositif d'évacuation du polluant
EP0574850A1 (fr) * 1992-06-17 1993-12-22 ABBPATENT GmbH Enlèvement de copeaux
AT405252B (de) * 1996-12-18 1999-06-25 Scheuch Alois Gmbh Ventilatoreinheit für absaugsysteme
CN102513324A (zh) * 2011-12-22 2012-06-27 葫芦岛市滨海宇通自动化控制有限公司 一种船用喷漆除尘装置
CN102513324B (zh) * 2011-12-22 2014-07-09 葫芦岛市滨海宇通自动化控制有限公司 一种船用喷漆除尘装置
IT202000031853A1 (it) * 2020-12-22 2022-06-22 Edf Europe S R L Sistema di aspirazione e filtraggio di polveri in un impianto industriale, in particolare in un impianto di taglio e stampa di fogli di cartone ondulato

Also Published As

Publication number Publication date
GB8327832D0 (en) 1983-11-16

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19850726

17Q First examination report despatched

Effective date: 19860219

R17C First examination report despatched (corrected)

Effective date: 19860814

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19871121

RIN1 Information on inventor provided before grant (corrected)

Inventor name: NIHOT, CAS