DE3621598A1 - Suction device for intermittently occurring exhaust gases - Google Patents

Suction device for intermittently occurring exhaust gases

Info

Publication number
DE3621598A1
DE3621598A1 DE19863621598 DE3621598A DE3621598A1 DE 3621598 A1 DE3621598 A1 DE 3621598A1 DE 19863621598 DE19863621598 DE 19863621598 DE 3621598 A DE3621598 A DE 3621598A DE 3621598 A1 DE3621598 A1 DE 3621598A1
Authority
DE
Germany
Prior art keywords
exhaust gases
suction device
suction
intermittently occurring
slits
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Withdrawn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
DE19863621598
Other languages
German (de)
Inventor
Friedrich Georg Stummer
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.)
Mahle GmbH
Original Assignee
Mahle GmbH
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 Mahle GmbH filed Critical Mahle GmbH
Priority to DE19863621598 priority Critical patent/DE3621598A1/en
Publication of DE3621598A1 publication Critical patent/DE3621598A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area

Landscapes

  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

In a fan-operated suction device for intermittently occurring exhaust gases, in which channels connected to a suction device have orifice slits directed at the location at which the exhaust gases are produced, the slits are designed as suction nozzles (1, 2, 4), the orifices of which can be closed in the periods in which no exhaust gases occur by means of closure elements (flaps 3) mounted in the orifice region, while the fan continues to operate. <IMAGE>

Description

Die Erfindung betrifft eine Absaugeinrichtung für intermittierend anfallende Abgase nach dem Oberbe­ griff des Patentanspruchs 1.The invention relates to a suction device for intermittent exhaust gases after the Oberbe handle of claim 1.

Derartige Absaugeinrichtungen werden in der Regel kontinuierlich betrieben. Hier eine möglichst wirtschaftliche auf das intermittiernde Anfallen der Gase abgestellte Absaugeinrichtung zu schaffen, ist die Aufgabe der vorliegenden Erfindung.Such suction devices are usually operated continuously. Here one if possible economic on the intermittent incidence to create a suction device for the gases, is the object of the present invention.

Gelöst wird sie durch eine Ausgestaltung der gattungs­ gemäßen Einrichtung nach den kennzeichnenden Merkmalen des Patentanspruchs.It is solved by a design of the genus modern facility according to the characteristic features of the claim.

Ein Ausführungsbeispiel ist in der Zeichnung darge­ stellt und wird nachfolgend näher beschrieben.An embodiment is shown in the drawing represents and is described in more detail below.

Das Beispiel betrifft die Absaugung bei einer Druck­ gießmaschine, bei der aus Trennmitteln und thermischen Vorgängen stammende Nebel und Dämpfe abzusaugen sind.The example concerns suction at a pressure casting machine, in which from release agents and thermal Mists and vapors originating from operations must be extracted.

Die Absaugdüsen 1, 2 und 4 zur Erfassung der aus dem Formbereich und aus dem Gießkammer- und Ofenbereich entweichenden Dämpfe und Nebel können über die gesamte Breite der Maschinenplatten der Druckgießmaschine reichen.The suction nozzles 1 , 2 and 4 for detecting the vapors and mists escaping from the molding area and from the casting chamber and furnace area can extend over the entire width of the machine plates of the die casting machine.

Durch kleinflächige, schlitzartige Düsenöffnungen werden hohe Absaugluftgeschwindigkeiten erreicht, wodurch beim Absaugvorgang auch weiter entfernt befindliche Dampf- und Nebelschwaden angesaugt werden.Through small-area, slot-like nozzle openings high exhaust air speeds are achieved, which means  even more distant during the suction process Steam and fog are drawn in.

Die Klappen 3 sperren die schlitzartigen Düsenöffnungen ab, solange keine Dampf- und Nebelschwaden abzusaugen sind. Die Klappen 3 können elektromotorisch, pneumatisch, hydraulisch oder mechanisch (z.B. über die Bewegung der beweglichen Maschinenplatte) gesteuert werden.The flaps 3 shut off the slot-like nozzle openings as long as no steam and fog are to be extracted. The flaps 3 can be controlled by an electric motor, pneumatically, hydraulically or mechanically (for example via the movement of the movable machine plate).

Zweck der Klappen 3 ist es, die absaugseitig hinter den Absaugdüsenöffnungen zum Absauggebläse befindlichen Hohlräume abzusperren, so daß dort ein wesentlicher Unterdruck entsteht.The purpose of the flaps 3 is to shut off the cavities located on the suction side behind the suction nozzle openings to the suction fan, so that a substantial negative pressure is created there.

Bei Öffnung der Klappen 3 wirken die zwischen Klappe und Absauggebläse unter Unterdruck stehenden Volumina als Akkumulatoren für die abzusaugenden Nebel- und Dampfschwaden. Zusätzlich verringern sie den Leistungs­ bedarf der als Axial- oder Radiallüfter ausgebildeten Absauggebläse während der Zeit der Absperrwirkung der Klappen 3.When the flaps 3 are opened, the volumes under vacuum between the flap and the suction fan act as accumulators for the mist and steam to be extracted. In addition, they reduce the power requirement of the exhaust fans, which are designed as axial or radial fans, during the period when the flaps 3 are shut off.

Die erfindungsgemäße Ausgestaltung ist sinnvoll, da die Absaugwirkung nur während etwa 10% des gesamten Arbeitszyklus der Druckgießmaschine benötigt wird, nämlich in der Zeit, in der Dampf- und Nebelschwaden beim Öffnen der Form, beim Einbringen des Trennmittels in die Form und bei Dosieren des Gießmetalls in die Gießkammer entstehen. Auch nachgeschaltete Filter können wegen der nur zeitanteilig geringen Beauf­ schlagung mit Luft, Nebel und Dämpfen bei ent­ sprechend großer Auslegung der Räume zwischen Ansaug­ gebläse und Filter kleiner dimensioniert werden. The configuration according to the invention makes sense because the suction effect only during about 10% of the total Duty cycle of the die casting machine is required namely in the time in the steam and fog wafts when opening the mold, when inserting the release agent into the mold and when dosing the casting metal into the Casting chamber arise. Downstream filters too can because of the only temporarily small Beauf striking with air, fog and vapors at ent accordingly large dimensioning of the spaces between intake fans and filters can be dimensioned smaller.  

Die Verbindung der Absaugdüsen mit dem Absauggebläse kann über ortsfeste Verrohrungen 5 erfolgen.The connection of the suction nozzles to the suction fan can take place via fixed piping 5 .

Die Verbindung der Absaugdüse 2 auf der beweglichen Maschinenplatte mit dem Ansauggebläse kann über zusammenschiebbare Hosenrohre oder bewegliche Metall­ oder Kunststoffschläuche erfolgen.The connection of the suction nozzle 2 on the movable machine plate with the suction fan can be made via collapsible downpipes or movable metal or plastic hoses.

Die Absaugdüsen 1, 2 und 4 können so dimensioniert werden, daß gegenüber anderen Absaugsystemen, vor allem Hauben, die Behinderung des Aufspannbereichs bei Rüstvorgängen gering ist. Außerdem sind Auto­ matisierungsgeräte im Formtrennbereich nicht in ihren Bewegungen beeinträchtigt.The suction nozzles 1 , 2 and 4 can be dimensioned in such a way that, compared to other suction systems, especially hoods, there is little hindrance to the clamping area during set-up processes. In addition, automation devices in the mold release area are not impaired in their movements.

Absauganlagen solcher Ausführungen können außer an Druckgießmaschinen an Kunststoffspritzmaschinen, Kokillengießmaschinen, Schmiedepressen, Kunst­ stofformpressen oder ähnlichen Vorrichtungen horizontaler oder vertikaler Bauart eingesetzt werden.Extraction systems of such designs can also be used Die casting machines on plastic injection machines, Chill casting machines, forging presses, art fabric molding presses or similar devices horizontal or vertical design can be used.

Claims (1)

Gebläsebetriebene Absaugeinrichtung für intermittierend anfallende Abgase, bei der mit einer Saugvorrichtung verbundene Kanäle an den Entstehungsort der Abgase gerichtete Öffnungsschlitze aufweisen, dadurch gekennzeichnet, daß die Schlitze Absaugdüsen (1, 2, 4) sind, deren Öffnungen in den Zeiträumen, in denen keine Abgase anfallen, durch im Öffnungsbereich angebrachte Ver­ schlußelemente (Klappen 3) bei weiterlaufendem Gebläse verschließbar sind.Blower-operated suction device for intermittently occurring exhaust gases, in which ducts connected to a suction device have opening slits directed to the place of origin of the exhaust gases, characterized in that the slits are suction nozzles ( 1 , 2 , 4 ), the openings of which in the periods in which no exhaust gases occur , closing elements (flaps 3 ), which are attached in the opening area, can be closed when the fan continues to run.
DE19863621598 1986-06-27 1986-06-27 Suction device for intermittently occurring exhaust gases Withdrawn DE3621598A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863621598 DE3621598A1 (en) 1986-06-27 1986-06-27 Suction device for intermittently occurring exhaust gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863621598 DE3621598A1 (en) 1986-06-27 1986-06-27 Suction device for intermittently occurring exhaust gases

Publications (1)

Publication Number Publication Date
DE3621598A1 true DE3621598A1 (en) 1988-01-14

Family

ID=6303850

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863621598 Withdrawn DE3621598A1 (en) 1986-06-27 1986-06-27 Suction device for intermittently occurring exhaust gases

Country Status (1)

Country Link
DE (1) DE3621598A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH28874A (en) * 1903-06-12 1904-06-30 Karl Stuerm Extractor box
GB1069868A (en) * 1965-01-14 1967-05-24 Landbouwwerktuigen & Maschf Improvements in and relating to means for withdrawing vapours generated by electric welding
DE1604102A1 (en) * 1964-04-17 1970-09-10 Atmospheric Control Ltd Equipment for controlling the atmosphere in the immediate vicinity of machines
GB1506886A (en) * 1976-07-26 1978-04-12 Cleen Flo Ltd Devices for exhausting fumes or dust from work stations
DE2657067A1 (en) * 1976-12-14 1978-06-22 Mannesmann Ag SYSTEM FOR SUCTION OF AIR CONTAINED WITH SHEEP SUBSTANCES FROM LARGE BUILDINGS, IN PARTICULAR SECONDARY DUST COLLECTION SYSTEM IN STEEL MILLS
DE2854127A1 (en) * 1977-12-19 1979-06-28 Johns Manville COLLECTING DEVICE FOR COLLECTING SOLID PARTICLES
DE8534653U1 (en) * 1985-12-10 1986-02-13 Bayr, Georg, 8911 Thaining Gate valve device for suction systems

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH28874A (en) * 1903-06-12 1904-06-30 Karl Stuerm Extractor box
DE1604102A1 (en) * 1964-04-17 1970-09-10 Atmospheric Control Ltd Equipment for controlling the atmosphere in the immediate vicinity of machines
GB1069868A (en) * 1965-01-14 1967-05-24 Landbouwwerktuigen & Maschf Improvements in and relating to means for withdrawing vapours generated by electric welding
GB1506886A (en) * 1976-07-26 1978-04-12 Cleen Flo Ltd Devices for exhausting fumes or dust from work stations
DE2657067A1 (en) * 1976-12-14 1978-06-22 Mannesmann Ag SYSTEM FOR SUCTION OF AIR CONTAINED WITH SHEEP SUBSTANCES FROM LARGE BUILDINGS, IN PARTICULAR SECONDARY DUST COLLECTION SYSTEM IN STEEL MILLS
DE2854127A1 (en) * 1977-12-19 1979-06-28 Johns Manville COLLECTING DEVICE FOR COLLECTING SOLID PARTICLES
DE8534653U1 (en) * 1985-12-10 1986-02-13 Bayr, Georg, 8911 Thaining Gate valve device for suction systems

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee