EP0011728A1 - Abrasive blasting machine for wire or barlike material - Google Patents

Abrasive blasting machine for wire or barlike material Download PDF

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Publication number
EP0011728A1
EP0011728A1 EP79104297A EP79104297A EP0011728A1 EP 0011728 A1 EP0011728 A1 EP 0011728A1 EP 79104297 A EP79104297 A EP 79104297A EP 79104297 A EP79104297 A EP 79104297A EP 0011728 A1 EP0011728 A1 EP 0011728A1
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EP
European Patent Office
Prior art keywords
centrifugal
blasting
blasted
housing
wheels
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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.)
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EP79104297A
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German (de)
French (fr)
Inventor
Clemens Paulfeuerborn
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
    • B24C3/10—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces for treating external surfaces
    • B24C3/14—Apparatus using impellers
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S451/00—Abrading
    • Y10S451/909—Wire polishing

Definitions

  • the invention relates to a centrifugal blasting device for wire or rod material with two centrifugal wheels in a closed housing, which has a Starhlkarzuschreib and an outlet for scale, wear and tear and the like, the material to be blasted is guided between the centrifugal wheels through the housing.
  • the two centrifugal wheels are driven in the opposite direction of rotation, so that the blasting medium of one centrifugal wheel strikes the blasting medium of the other centrifugal wheel, approximately in the area in which the material is blasted.
  • the energy that is transferred to the blasting medium by the centrifugal wheels is continuously destroyed, i.e. this energy has to be added again and again.
  • the abrasive itself wears out relatively heavily.
  • the abrasive blasted by the blast wheels collects at the bottom of the housing and is conveyed upwards by an external conveyor and to the entry area of the blast wheels. This transport is then used to clean scale, wear materials and the like. (FR-PS 1 268 599).
  • a centrifugal blasting device in which three centrifugal wheels are arranged in a star shape and offset from one another in the direction of movement of the material to be blasted around the material to be blasted.
  • a guide device consisting of two adjustable guardrails is assigned to each centrifugal wheel in order to feed the blasting medium emerging from the centrifugal wheels onto the material to be blasted.
  • the abrasive collects again in the lower area of the housing and from there has to be replaced by separate conveyors using separate conveyors (DT-OS 1 815 187).
  • the invention has for its object to provide a centrifugal blasting device of the type mentioned, which can be operated with less energy, which is as compact as possible and in which as little wear of the blasting medium occurs.
  • centrifugal wheels are arranged in the same direction of rotation, that the radiation areas of the centrifugal wheels in the housing are separated from one another by a wall which allows the material to be blasted to pass through, and that a guide device is arranged between each centrifugal wheel and the material to be blasted.
  • the centrifugal blasting device creates an uninterrupted blasting medium cycle, as a result of which the energy expenditure is low and the dimensions can be kept small.
  • the guide device is used to distribute the blasting agent over the largest possible circumferential area of the material to be blasted.
  • the device according to the invention is advantageously designed such that the guide device consists of two guard rails and a wedge piece arranged between them.
  • the formation of the wedge piece between the two guardrails ensures that the material to be blasted is hit by a centrifugal wheel over a large circumferential angle (up to 270 °).
  • the device in such a way that an air wing is attached to a centrifugal wheel, in the area of which an air suction opening is provided, and that the exit for scale, wear materials and the like takes place through an opening that lies in the blasting agent shadow of the guide device, which corresponds to the Centrifugal wheel is associated with the air wing.
  • the outlet opening in the shadow of a guide device, it is possible to separate the heavier blasting medium from the lighter substances, namely scale, wear materials and the like, since the lighter substances enter the shadow region and can be derived from there without a Significant proportion of blasting media escaping.
  • a sieve grate can be provided in this exit area, which allows the light and small substances to pass through and enables the separation of any blasting agent which may escape and which can still be used, and which can then be returned to a centrifugal wheel through a separate blasting agent line.
  • the additional air wing serves to influence the flow conditions in such a way that the desired separation of blasting media and lighter scale and wear materials takes place.
  • a closed housing is formed from the stand 1, the frame 2 and the cover plates 3.
  • the partition 4 divides the housing lengthwise into two fields.
  • the two centrifugal wheels 5 and 6 rotating in the same direction are mounted one above the other at a distance in the housing.
  • the direction of discharge of the centrifugal wheels is open towards the fields.
  • the outlets to the opposite centrifugal wheel are designed as funnels 7 and 8.
  • the mouths of these funnels protrude beyond the central center of the centrifugal wheels and guide an abrasive carried along from the inside, at most the width of the distance between two centrifugal wheel blades, into the centrifugal wheels.
  • a certain amount of abrasive is fed through the pipe socket 9 to a centrifugal wheel.
  • the blasting agent then flows in an uninterrupted circuit through both housing fields and through the centrifugal wheels, in which it is continuously accelerated again.
  • a wire or rod pulled through the housing is directly from irradiated below and above.
  • the direction of the mouth; the funnels 7 and 8, the number and length of the centrifugal wheel blades and the circumferential speed of the centrifugal wheels are coordinated with one another in such a way that the blasting agent cannot flow entirely between the blades, but is still from the next blade.
  • the scattering length of the blasting medium flowing out of the centrifugal wheels then corresponds approximately to the length of the wire or rod facing the blasting process.
  • the blasting agent flow is divided into two halves by wedge pieces 10 and brought back to the wire to be descaled by adjustable guard rails 11. As a result, this is irradiated on both sides in each individual field, in an enveloping circle up to 270 °. Overall, this results in four-sided effective radiation.
  • This arrangement of the wedge pieces and guardrails also promotes free flow of the jet current.
  • centrifugal wheels act as in a blower, a strong air flow is carried along during the blasting process, which supports the flow of the abrasive.
  • the air is drawn in through a variable opening in the housing behind a centrifugal wheel.
  • the air flow is largely compensated for by the centrifugal wheels.
  • an air build-up occurs during the blasting process, as a result of which air and scale escape into the sieve grate 12 arranged outside the housing.
  • the opening in the housing is behind the guardrail 11. This means that only the lighter scale and air can escape from the housing, while the heavier blasting agent remains in the flow. About additional Required air can also be sucked in by air vanes 13 mounted behind a centrifugal wheel.
  • the sieve grate is formed by the arrangement of the grate bars 14 to form a cylindrical body. There are wedge-shaped intermediate layers 15 at the ends of the bars. This allows the bars to be rectangular and give a free passage for scale and air Pipeline 17 back to the blasting housing. As a result, a suitable abrasive that is still present in the scale is separated and returned to the blasting circuit. Tinder and air, on the other hand, can be fed through the grate bars to a separator or a filter and separated immediately.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Centrifugal Separators (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Die Schleuderstrahlvorrichtung zum Bestrahlen von Draht- oder Stabmaterial weist zwei Schleuderräder (5,6) in einem geschlossener. Gehäuse auf, das eine Strahlmittelzufuhr und einer. Austritt für Zunder, Verschleißstoffe und dergleichen hat. Das zu strahlende Material wird zwischern den Schleuderrädern, die in gleicher Drehrichtung angetrieben sind, durch das Gehäuse geführt. Die Abstrahlbereiche der beiden Schleuderräder sind in dem Gehäuse durch eine das zu strahlende Material durchlassende Wand (4) voneinander getrennt. Zwischen jedem Schleuderrad und dem zu strahlenden Material ist eine Leitvorrichtung (10,11) angeordnet. Das Material wird dadurch von beiden Seiten gestrahlt, und es entsteht ein mehr oder weniger geschlossener Strahlmittelkreislauf, der verhältnismäßig wenig Energie beansprucht. Grundsätzlich muß nur das Strahlmaterial von außen zugeführt werden, das verschleißt.The centrifugal blasting device for irradiating wire or rod material has two centrifugal wheels (5, 6) in a closed one. Housing on that one abrasive and a. Has leak for scale, wear materials and the like. The material to be blasted is guided through the housing between the centrifugal wheels, which are driven in the same direction of rotation. The radiation areas of the two centrifugal wheels are separated from one another in the housing by a wall (4) which allows the material to be blasted to pass through. A guide device (10, 11) is arranged between each centrifugal wheel and the material to be blasted. As a result, the material is blasted from both sides, and a more or less closed abrasive circuit is created that requires relatively little energy. Basically, only the blasting material that wears must be supplied from the outside.

Description

Die Erfindung betrifft eine Schleuderstrahlvorrichtung für Draht- oder Stabmaterial mit zwei Schleuderrädern in einem geschlossenen Gehäuse, das eine Starhlmittelzufuhr und einen Austritt für Zunder, Verschleißstoffe und dergleichen aufweist, wobei das zu strahlende Material zwischen den Schleuderrädern durch das Gehäuse geführt wird.The invention relates to a centrifugal blasting device for wire or rod material with two centrifugal wheels in a closed housing, which has a Starhlmittelzufuhr and an outlet for scale, wear and tear and the like, the material to be blasted is guided between the centrifugal wheels through the housing.

Bei einer bekannten Vorrichtung der eingangs genannten Art sind die beiden Schleuderräder in entgegengesetzter Drehrichtung angetrieben, so daß das Strahlmittel des einen Schleuderrades auf das Strahlmittel des anderen Schleuderrades auftrifft und zwar ungefähr in dem Bereich, in dem das Material gestrahlt wird. Hierdurch wird die Energie, die durch die Schleuderräder auf das Strahlmittel übertragen wird, immer wieder vernichtet, d.h. diese Energie muß fortwährend neu zugeführt werden. Weiterhin verschleißt das Strahlmittel selbst verhältnismäßig stark. Das von den Schleuderrädern abgestrahlte Strahlmittel sammelt sich am Boden des Gehäuses und wird durch einen außen liegenden Förderer wieder nach oben und dem Eintrittsbereich der Schleuderräder zugefördert. Auf diesem Transport erfolgt dann die Reinigung von Zunder, Verschleißstoffen und dergleichen. (FR-PS 1 268 599).In a known device of the type mentioned, the two centrifugal wheels are driven in the opposite direction of rotation, so that the blasting medium of one centrifugal wheel strikes the blasting medium of the other centrifugal wheel, approximately in the area in which the material is blasted. As a result, the energy that is transferred to the blasting medium by the centrifugal wheels is continuously destroyed, i.e. this energy has to be added again and again. Furthermore, the abrasive itself wears out relatively heavily. The abrasive blasted by the blast wheels collects at the bottom of the housing and is conveyed upwards by an external conveyor and to the entry area of the blast wheels. This transport is then used to clean scale, wear materials and the like. (FR-PS 1 268 599).

Weiterhin ist eine Schleuderstrahlvorrichtung bekannt, bei der drei Schleuderräder sternförmig und in Bewegungsrichtung des zu strahlenden Materiales gegeneinander versetzt um das zu strahlende Material herum angeordnet sind. Jedem Schleuderrad ist eine Leitvorrichtung aus zwei verstellbaren Leitplanken zugeordnet, um das aus den Schleuderrädern austretende Strahlmittel auf das zu strahlende Gut zuzuführen. Das Strahlmittel sammelt sich wiederum im unteren Bereich des Gehäuses und muß von dort den Schleuderrädern durch gesonderte Förderer erneut werden (DT-OS 1 815 187). Der Erfindung liegt die AufGabe zugrunde, eine Schleuderstrahlvorrichtung der eingangs genannten Art zu schaffen, die mit einem geringeren Energieaufwand betrieben werden kann, die möglichst kompakt aufgebaut ist und bei der ein möglichst geringer Verschleiß des Strahlmittels auftritt.Furthermore, a centrifugal blasting device is known in which three centrifugal wheels are arranged in a star shape and offset from one another in the direction of movement of the material to be blasted around the material to be blasted. A guide device consisting of two adjustable guardrails is assigned to each centrifugal wheel in order to feed the blasting medium emerging from the centrifugal wheels onto the material to be blasted. The abrasive collects again in the lower area of the housing and from there has to be replaced by separate conveyors using separate conveyors (DT-OS 1 815 187). The invention has for its object to provide a centrifugal blasting device of the type mentioned, which can be operated with less energy, which is as compact as possible and in which as little wear of the blasting medium occurs.

Diese Aufgabe wird dadurch gelöst, daß
die Schleuderräder in gleicher Drehrichtung angeordnet sind,
daß die Abstrahlbereiche der Schleuderräder in dem Gehäuse durch eine das zu strahlende Material durchlassende Wand voneinander getrennt sind, und
daß zwischen jedem Schleuderrad und dem zu strahlenden Material eine Leitvorrichtung angeordnet ist.This object is achieved in that
the centrifugal wheels are arranged in the same direction of rotation,
that the radiation areas of the centrifugal wheels in the housing are separated from one another by a wall which allows the material to be blasted to pass through, and
that a guide device is arranged between each centrifugal wheel and the material to be blasted.

Dadurch, daß die Schleuderräder in gleicher Drehrichtung angetrieben werden und die entsprechenden Abstrahlbereiche voneinander getrennt sind, entsteht ein mehr oder weniger geschlossener Strahlmittelkreislauf, d.h. das aus dem einen Schleuderrad austretende Strahlmittel tritt in das andere Schleuderrad ein, ohne daß zwischendurch eine ge- ; sonderte Förderung ggf. außerhalb des Gehäuses erforderlich ist. Das zu strahlende Material wird von den beiden gegenläufigen Strahlmittelströmen, die voneinander durch die Wand getrennt sind, von beiden Seiten gestrahlt. Grundsätzlich muß lediglich das Strahlmittel von außen zugeführt werden, das verschleißt. Da das Strahlmittel nicht gegeneinander . geschleudert wird, ist dieser Verschleiß verhältnismäßig gering. Die Schleuderstrahlvorrichtung nach der Erfindung schafft einen ununterbrochenen Strahlmittelkreislauf, wodurch der Energieaufwand gering ist und die Abmessungen kleingehalten werden können. Die Leitvorrichtung dient der Verteilung des Strahlmittels über einen möglichst großen Umfangsbereich des zu strahlenden Materiales.Characterized in that the centrifugal wheels are driven in the same direction of rotation and the corresponding radiation areas are separated from one another, a more or less closed blasting medium circuit is created, ie the blasting medium emerging from one centrifugal wheel enters the other centrifugal wheel without any intervening ; separate funding may be required outside the housing. The material to be blasted is blasted from both sides by the two opposing blasting media streams that are separated from each other by the wall. Basically, only the abrasive that wears out has to be supplied from the outside. Because the abrasive is not against each other. is thrown, this wear is relatively low. The centrifugal blasting device according to the invention creates an uninterrupted blasting medium cycle, as a result of which the energy expenditure is low and the dimensions can be kept small. The guide device is used to distribute the blasting agent over the largest possible circumferential area of the material to be blasted.

In vorteilhafter Weise ist die Vorrichtung nach der Erfindung derart ausgebildet, daß die Leitvorrichtung aus zwei Leitplanken und einem zwischen diesen angeordneten Keilstück besteht. Insbesondere durch die Ausbildung des Keilstückes zwischen den beiden Leitplanken ist gewährleistet, daß das zu strahlende Material von einem Schleuderrad bereits über einen großen Umfangswinkel (bis zu 270°) getroffen wird.The device according to the invention is advantageously designed such that the guide device consists of two guard rails and a wedge piece arranged between them. In particular, the formation of the wedge piece between the two guardrails ensures that the material to be blasted is hit by a centrifugal wheel over a large circumferential angle (up to 270 °).

Weiterhin ist es möglich, die Vorrichtung derart auszubilden, daß an einem Schleuderrad ein Luftflügel angebracht ist, in dessen Bereich eine Luftansaugöffnung vorgesehen ist und daß der Austritt für Zunder, Verschleißstoffe und dergleichen durch eine öffnung erfolgt, die im Strahlmittelschatten der Leitvorrichtung liegt, die dem Schleuderrad mit dem Luftflügel zugeordnet ist. Durch die Anordnung der Austrittsöffnung im Schatten einer Leitvorrichtung ist es möglich, das schwerere Strahlmittel von den leichteren Stoffen, nämlich Zunder, Verschleißstoffe und dergleichen, zu trennen, da die leichteren Stoffe in den Schattenbereich eintreten und dort aus diesem abgeleitet werden können, ohne daß ein nennenswerter Anteil Strahlmittel mit austritt. In diesem Austrittsbereich kann ein Siebrost vorgesehen sein, das die leichten und kleinen Stoffe hindurchläßt und das Abscheiden eventuell austretenden und noch verwendbaren Strahlmittels ermöglicht, das dann durch eine gesonderte Strahlmittelleitung zu einem Schleuderrad zurückgeführt werden kann. Der zusätzliche Luftflügel dient der Beeinflussung der Strömungsverhältnisse derart, daß die gewünschte Trennung von Strahlmittel und leichteren Zunder- und Verschleißstoffen stattfindet.Furthermore, it is possible to design the device in such a way that an air wing is attached to a centrifugal wheel, in the area of which an air suction opening is provided, and that the exit for scale, wear materials and the like takes place through an opening that lies in the blasting agent shadow of the guide device, which corresponds to the Centrifugal wheel is associated with the air wing. By arranging the outlet opening in the shadow of a guide device, it is possible to separate the heavier blasting medium from the lighter substances, namely scale, wear materials and the like, since the lighter substances enter the shadow region and can be derived from there without a Significant proportion of blasting media escaping. A sieve grate can be provided in this exit area, which allows the light and small substances to pass through and enables the separation of any blasting agent which may escape and which can still be used, and which can then be returned to a centrifugal wheel through a separate blasting agent line. The additional air wing serves to influence the flow conditions in such a way that the desired separation of blasting media and lighter scale and wear materials takes place.

Im folgenden wird die Erfindung unter Hinweis auf die Zeichnung anhand eines Ausführungsbeispieles näher erläutert. Es zeigt:

  • Fig. 1 eine im wesentlichen offen dargestellte Vorderansicht einer Ausführungsform einer Schleuderstrahlvorrichtung nach der Erfindung;
  • Fig. 2 einen Schnitt gemäß der Linie A-B der Fig. 1;
  • Fig. 3 einen Querschnitt durch die Siebrosteinrichtung im Bereich des Austritts; und
  • Fig. 4 einen Längsschnitt durch die Darstellung der Fig. 3.
The invention is explained in more detail below with reference to the drawing using an exemplary embodiment. It shows:
  • Figure 1 is a front view of an embodiment of a centrifugal blasting device according to the invention shown essentially open.
  • Fig. 2 is a section along the line AB of Fig. 1;
  • 3 shows a cross section through the screen device in the area of the outlet; and
  • 4 shows a longitudinal section through the representation of FIG. 3.

Aus dem Ständer 1,dem Rahmen 2 und den Deckplatten 3 ist ein geschlossenes Gehäuse gebildet. Durch die Scheidewand 4 wird das Gehäuse der Lange nach in zwei Felder aufgeteilt. In dem Gehäuse sind die beiden, in gleicher Richtung rotierenden Schleuderräder 5 und 6 in einem Abstand übereinander gelagert.A closed housing is formed from the stand 1, the frame 2 and the cover plates 3. The partition 4 divides the housing lengthwise into two fields. The two centrifugal wheels 5 and 6 rotating in the same direction are mounted one above the other at a distance in the housing.

Die Abwurfstrahlrichtung der Schleuderräder ist zu den Feldern hin offen. Die Einmündungen zum jeweils gegenüberliegenden Schleuderrad sind als Trichter 7 und 8 ausgebildet. Die Mündungen dieser Trichter ragen über die zentrale Mitte der Schleuderräder hinaus und führen ein mitgeführtes Strahlmittel von innen her, höchstens in der Breite des Abstandes zweier Schleuderradschaufeln voneinander, in die Schleuderräder.The direction of discharge of the centrifugal wheels is open towards the fields. The outlets to the opposite centrifugal wheel are designed as funnels 7 and 8. The mouths of these funnels protrude beyond the central center of the centrifugal wheels and guide an abrasive carried along from the inside, at most the width of the distance between two centrifugal wheel blades, into the centrifugal wheels.

Eine bestimmte Menge Strahlmittel wird durch den Rohrstutzen 9 einem Schleuderrad zugeführt. Das Strahlmittel strömt dann in ununterbrochenem Kreislauf durch beide Gehäusefelder und durch die Schleuderräder, in welchen es fortlaufend erneut beschleunigt wird. Ein durch das Gehäuse gezogener Draht oder Stab wird dabei direkt von unten und oben her bestrahlt.A certain amount of abrasive is fed through the pipe socket 9 to a centrifugal wheel. The blasting agent then flows in an uninterrupted circuit through both housing fields and through the centrifugal wheels, in which it is continuously accelerated again. A wire or rod pulled through the housing is directly from irradiated below and above.

Die Mündungsrichtung; der Trichter 7 und 8, die Anzahl und Länge der Schleuderradschaufeln und die Umfangsgeschwin-digkeit der Schleuderräder sind so aufeinander abgestimmt, daß das Strahlmittel nicht ganz zwischen den Schaufeln hindurchströmen kann, sondern immer noch von der nächstfolgenden Schaufel wird. Die Streulänge des aus den Schleuderrädern ausströmenden Strahlmittels entspricht dabei dann etwa der Länge des dem Strahlvorgang jeweils zugekehrten Drahtes oder Stabes.The direction of the mouth; the funnels 7 and 8, the number and length of the centrifugal wheel blades and the circumferential speed of the centrifugal wheels are coordinated with one another in such a way that the blasting agent cannot flow entirely between the blades, but is still from the next blade. The scattering length of the blasting medium flowing out of the centrifugal wheels then corresponds approximately to the length of the wire or rod facing the blasting process.

Im Gehäuse wird in jedem Feld der Strahlmittelstrom durch Keilstücke 10 in zwei Hälften aufgeteilt und durch einstellbare Leitplanken 11 an den zu entzundernden Draht wieder herangeführt. Dadurch wird dieser in jedem einzelnen - Feld zweiseitig, in einem Hüllkreis bis zu 270° bestrahlt. Das ergibt insgesamt eine vierseitige wirksame Bestrahlung.In each housing, the blasting agent flow is divided into two halves by wedge pieces 10 and brought back to the wire to be descaled by adjustable guard rails 11. As a result, this is irradiated on both sides in each individual field, in an enveloping circle up to 270 °. Overall, this results in four-sided effective radiation.

Durch diese Anordnung der Keilstücke und Leitplanken ist auch ein freier Durchfluß des Strahlstromes gefördert.This arrangement of the wedge pieces and guardrails also promotes free flow of the jet current.

Da die Schleuderräder wie in einem Gebläse wirksam sind, wird beim Strahlvorgang ein starker Luftstrom mitgeführt, wodurch der Strahlmittelfluß unterstützt wird. Die Luft wird durch eine in der Weite veränderlichen Öffnung im Gehäuse hinter einem Schleuderrad angesaugt. Der Luftstrom wird von den Schleuderrädern zum größten Teil gegenseitig kompensiert. Es entsteht beim Strahlvorgang jedoch ein Luftstau, wodurch Luft und Zunder in den außerhalb des Gehäuses angeordneten Siebrost 12 entweicht. Die Öffnung im Gehäuse hierfür befindet sich hinter der Leitplanke 11. Dadurch kann nur der leichtere Zunder und Luft aus dem Gehäuse entweichen, während das schwerere Strahlmittel in der Strömung verbleibt. Etwa zusätzlich erforderliche Luft kann durch hinter einem Schleuderrad angebrachte Luftflügel 13 mit angesaugt werden.Since the centrifugal wheels act as in a blower, a strong air flow is carried along during the blasting process, which supports the flow of the abrasive. The air is drawn in through a variable opening in the housing behind a centrifugal wheel. The air flow is largely compensated for by the centrifugal wheels. However, an air build-up occurs during the blasting process, as a result of which air and scale escape into the sieve grate 12 arranged outside the housing. The opening in the housing is behind the guardrail 11. This means that only the lighter scale and air can escape from the housing, while the heavier blasting agent remains in the flow. About additional Required air can also be sucked in by air vanes 13 mounted behind a centrifugal wheel.

Der Siebrost ist durch die Anordnung der Roststäbe 14 zu einem zylinderischen Körper gebildet. An.den Enden der Stäbe befinden sich keilförmige Zwischenlagen 15. Dadurch können die Stäbe rechteckig sein und ein freier Durchgang für Zunder und Luft ist geben.$ An seinem Ende ist der Rost innen mit einer Abschlußplatte 16 abgeschlossen und davor führt von einer Öffnung aus eine Rohrleitung 17 zum Strahlgehäuse zurück. Hierdurch wird ein im Zunder noch vorhandenes taugliches Strahlmittel abgeschieden und dem Strahlkreislauf wieder zugeführt. Zunder und Luft kann hingegen durch die Roststäbe hindurch einem Abscheider oder einem Filter zugeführt und unmittelbar voneinander getrennt werden.The sieve grate is formed by the arrangement of the grate bars 14 to form a cylindrical body. There are wedge-shaped intermediate layers 15 at the ends of the bars. This allows the bars to be rectangular and give a free passage for scale and air Pipeline 17 back to the blasting housing. As a result, a suitable abrasive that is still present in the scale is separated and returned to the blasting circuit. Tinder and air, on the other hand, can be fed through the grate bars to a separator or a filter and separated immediately.

Dadurch, daß im Gehäuse der mitgeführte Luftstrom zum größten Teil von den beiden Schleuderrädern gegenseitig kompensiert wird, braucht nur eine geringere Menge Luft wie üblich gefiltert werden.Because the entrained air flow in the housing is largely compensated for by the two centrifugal wheels, only a smaller amount of air needs to be filtered as usual.

Bei der Arbeit wird durch den Rohrstutzen 9, verschlisser. Strahlmittel in bekannter Weise, nach dem Kraftaufwand der Schleuderräder bemessen, differenziert durch neues ersetzt. Dadurch bleibt im Strahlbereich eine gemischte Strahlmitteldicke erhalten.At work is worn out by the pipe socket 9. Blasting media in a known manner, dimensioned according to the force exerted by the centrifugal wheels, replaced differentially by new ones. As a result, a mixed abrasive thickness is maintained in the blasting area.

Claims (5)

1. Schleuderstrahlvorrichtung für Draht- oder Stabmaterial mit zwei Schleuderrädern in einem geschlossenen Gehäuse, das eine Strahlmittelzufuhr und einen Austritt für Zunder, Verschleißstoffe und dergleichen aufweist, wobei das zu strahlende Material zwischen den Schleuderrädern durch das Gehäuse geführt wird, dadurch gekennzeichnet, daß die Schleuderräder (5, 6) in gleicher Drehrichtung angetrieben sind,
daß die Abstrahlbereiche der Schleuderräder in dem Gehäuse durch eine das zu strahlende Material durchlassende Wand voneinander getrennt sind, und
daß zwischen jedem Schleuderrad und dem zu strahlenden Material eine Leitvorrichtung (10, 11) angeordnet ist.1. Centrifugal blasting device for wire or rod material with two centrifugal wheels in a closed housing, which has an abrasive supply and an outlet for scale, wear materials and the like, the material to be blasted is guided between the centrifugal wheels through the housing, characterized in that the centrifugal wheels (5, 6) are driven in the same direction of rotation,
that the radiation areas of the centrifugal wheels in the housing are separated from one another by a wall which allows the material to be blasted to pass through, and
that a guide device (10, 11) is arranged between each centrifugal wheel and the material to be blasted. 2. Schleuderstrahlvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Leitvorrichtung aus zwei Leitplanken (11) und einem zwischen diesen angeordneten Keilstück (10) besteht.2. Centrifugal blasting device according to claim 1, characterized in that the guide device consists of two guard rails (11) and a wedge piece (10) arranged between them. 3. Schleuderstrahlvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß an einem Schleuderrad (6) ein Luftflügel (13) angebracht ist, in dessen Bereich eine Luftansaugöffnung vorgesehen ist und daß der Austritt für Zunder, Versehleißstoffe und dergleichen durch eine Öffnung erfolgt, die im Strahlmittelschatten der Leitvorrichtung (11) liegt, die dem Schleuderrad mit dem Luftflügel zugeordnet ist.3. Centrifugal blasting device according to claim 1 or 2, characterized in that an air wing (13) is attached to a centrifugal wheel (6), in the area of which an air suction opening is provided and that the outlet for scale, contaminants and the like takes place through an opening which in the blasting medium shadow of the guide device (11), which is assigned to the centrifugal wheel with the air wing. 4. Schleuderstrahlvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß im Anschluß an die Öffnung zum Austritt für Zunder, Verschleißstoffe und dergleichen, ein Siebrost (12) vorgesehen ist.4. Centrifugal blasting device according to claim 3, characterized in that a sieve grate (12) is provided following the opening for the outlet for scale, wear materials and the like. 5. Schleuderstrahlvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß von dem Siebrost (12) eine Strahlmittelleitung (17) in den Strahlmittelzufuhrbereich eines Schleuderrades (6) führt.5. Centrifugal blasting device according to claim 4, characterized in that from the sieve grate (12) leads an abrasive line (17) into the blasting agent supply area of a centrifugal wheel (6).
EP79104297A 1978-11-27 1979-11-03 Abrasive blasting machine for wire or barlike material Withdrawn EP0011728A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2851173 1978-11-27
DE2851173A DE2851173C3 (en) 1978-11-27 1978-11-27 Centrifugal blasting device for continuous long workpieces such as wires, rods and tubes

Publications (1)

Publication Number Publication Date
EP0011728A1 true EP0011728A1 (en) 1980-06-11

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ID=6055620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104297A Withdrawn EP0011728A1 (en) 1978-11-27 1979-11-03 Abrasive blasting machine for wire or barlike material

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Country Link
US (1) US4254593A (en)
EP (1) EP0011728A1 (en)
JP (1) JPS5577472A (en)
DE (1) DE2851173C3 (en)

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WO1986004289A1 (en) * 1985-01-19 1986-07-31 Tilghman Wheelabrator Limited Shot blasting machinery
EP0490189A1 (en) * 1990-12-12 1992-06-17 BMD Badische Maschinenfabrik Durlach GmbH Blast installation for blasting the surface of sheet metal, sections or the like
EP0569888A1 (en) * 1992-05-15 1993-11-18 BMD Badische Maschinenfabrik Durlach GmbH Sand-blasting device for elongated element
WO1997038823A1 (en) * 1996-04-12 1997-10-23 Interblast Uk Limited Blasting apparatus and method for treatment of an elongate member

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US4633622A (en) * 1985-05-28 1987-01-06 Walker Peenimpac Machine, Inc. Shot cleaning apparatus with gravity fed auxiliary impeller
US5090162A (en) * 1990-06-13 1992-02-25 Nelson Robert T Surface treating apparatus
US5142831A (en) * 1991-01-28 1992-09-01 Nelson Robert T Apparatus for treating cornered surfaces
US5587259A (en) * 1994-03-09 1996-12-24 Rayovac Corporation Metal-air cathode and cell having a hardened current collecting substrate
US5582932A (en) * 1995-05-05 1996-12-10 Rayovac Corporation Tempered thin-walled cathode can
US5591541A (en) * 1995-05-05 1997-01-07 Rayovac Corporation High steel content thin walled anode can
US5658356A (en) * 1995-05-05 1997-08-19 Rayovac Corporation Metal-air cathode can having reduced corner radius and electrochemical cells made therewith
US5582930A (en) * 1995-05-05 1996-12-10 Rayovac Corporation High energy density metal-air cell
US5733676A (en) * 1995-05-05 1998-03-31 Rayovac Corporation Metal-air cathode can and electrochemical cell made therewith
IT1289890B1 (en) * 1997-01-15 1998-10-19 Pan Chemicals S P A GRINDING MACHINE FOR CLEANING A METALLIC TRAY
CN111775065B (en) * 2020-06-23 2021-11-16 烟台淳钧工业科技有限公司 Shot blasting tool clamp for automobile three-way catalytic muffler
CN113843718A (en) * 2021-08-09 2021-12-28 深圳市鑫达辉软性电路科技有限公司 Automatic adder of sandblast sand material

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986004289A1 (en) * 1985-01-19 1986-07-31 Tilghman Wheelabrator Limited Shot blasting machinery
EP0490189A1 (en) * 1990-12-12 1992-06-17 BMD Badische Maschinenfabrik Durlach GmbH Blast installation for blasting the surface of sheet metal, sections or the like
EP0569888A1 (en) * 1992-05-15 1993-11-18 BMD Badische Maschinenfabrik Durlach GmbH Sand-blasting device for elongated element
WO1997038823A1 (en) * 1996-04-12 1997-10-23 Interblast Uk Limited Blasting apparatus and method for treatment of an elongate member

Also Published As

Publication number Publication date
DE2851173A1 (en) 1980-05-29
DE2851173C3 (en) 1981-06-19
US4254593A (en) 1981-03-10
DE2851173B2 (en) 1980-10-30
JPS5577472A (en) 1980-06-11
JPS5616030B2 (en) 1981-04-14

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