DE4335382A1 - Abrasive-blasting apparatus - Google Patents

Abrasive-blasting apparatus

Info

Publication number
DE4335382A1
DE4335382A1 DE19934335382 DE4335382A DE4335382A1 DE 4335382 A1 DE4335382 A1 DE 4335382A1 DE 19934335382 DE19934335382 DE 19934335382 DE 4335382 A DE4335382 A DE 4335382A DE 4335382 A1 DE4335382 A1 DE 4335382A1
Authority
DE
Germany
Prior art keywords
line
blasting
pressure
boiler
compressed air
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.)
Granted
Application number
DE19934335382
Other languages
German (de)
Other versions
DE4335382C2 (en
Inventor
Wilhelm Schmidt
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.)
ABREX OBERFLAECHENTECHNIK GMBH, 24340 WINDEBY, DE
Original Assignee
PRO AQUA GERAETE 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 PRO AQUA GERAETE GmbH filed Critical PRO AQUA GERAETE GmbH
Priority to DE19934335382 priority Critical patent/DE4335382C2/en
Publication of DE4335382A1 publication Critical patent/DE4335382A1/en
Application granted granted Critical
Publication of DE4335382C2 publication Critical patent/DE4335382C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • B24C7/0053—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
    • B24C7/0061—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier of feed pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
    • B24C7/0038—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier the blasting medium being a gaseous stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • B24C7/0053—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • B24C7/0069—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with means for preventing clogging of the equipment or for preventing abrasive entering the airway

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)

Abstract

Abrasive-blasting apparatus having a pressurized pressure tank (10) filled with an abrasive medium, a tank outlet (12) provided with a metering valve, a blast nozzle (14) arranged at a distance from the pressure tank, an abrasive-medium line (16) connecting the tank outlet (12) to the blast nozzle (14), a compressed-air line (20) carrying compressed air, serving as propellant, to the blast nozzle (14), and provided with a throttle (18), a tank pressure line (21) pressurizing the pressure tank (10), and a flushing line (22) opening out in the tank outlet (12), the pressure tank (10) being pressurized with compressed air via the tank pressure line (21), and the flushing line (22), opening out in the tank outlet (12), carrying compressed air. <IMAGE>

Description

Die Erfindung betrifft ein Strahlgerät.The invention relates to a blasting device.

Geräte zum Sandstrahlen mit trockenem oder feuchtem Strahlmittel sind in vielfältiger Weise bekannt.Equipment for sandblasting with dry or damp Abrasives are known in many ways.

Weiter sind ähnlich aufgebaute Geräte bekannt, die zum Verstrahlen von Beton dienen.Furthermore, similarly constructed devices are known which are used for Blast concrete.

Die bekannten Geräte können nur zum Abstrahlen eines feuchten Strahlmittels, zum Abstrahlen eines trockenen Strahlmittels oder zum Verstrahlen von Beton verwendet werden.The known devices can only be used to emit a damp blasting media, for blasting a dry one Abrasive or used to blast concrete become.

Der Erfindung liegt die Aufgabe zugrunde, ein Gerät zu schaffen, das zum Abstrahlen wahlweise von feuchtem oder von trockenem Strahlmittel und ggf. auch zum Verstrahlen von Beton geeignet ist.The invention has for its object a device create that for radiating either damp or of dry blasting media and possibly also for blasting of concrete is suitable.

Ausgehend von der DE 42 12 615 wird diese Aufgabe durch die in Anspruch 1 genannten gelöst. Die Unteransprüche geben vorteilhafte Ausgestaltungen der Erfindung an.Starting from DE 42 12 615 this task is accomplished by those mentioned in claim 1 solved. The subclaims indicate advantageous embodiments of the invention.

Die Erfindung wird im folgenden anhand einer Zeichnung erläutert. Dabei zeigt:The invention is described below with reference to a drawing explained. It shows:

Fig. 1 eine schematische Darstellung des Gerätes, Fig. 1 is a schematic representation of the device,

Fig. 2 eine Detaildarstellung des Auslasses nach einem ersten Ausführungsbeispiel, Fig. 2 is a detail view of the outlet according to a first embodiment,

Fig. 3 eine Darstellung des Auslasses nach einem zweiten Ausführungsbeispiel, und Fig. 3 is an illustration of the outlet according to a second embodiment, and

Fig. 4 eine Darstellung des Auslasses nach einem dritten Ausführungsbeispiel. Fig. 4 is an illustration of the outlet according to a third embodiment.

Das Strahlgerät besteht aus einem Druckkessel 10, einem mit einem Dosierventil versehenen Kesselauslaß 12, einer von dem Druckkessel entfernt angeordneten Strahldüse 14, einer den Kesselauslaß mit der Strahldüse 14 verbinden­ den Strahlmittelleitung 16, einer mit einer Drossel 18 versehenen Druckmittelleitung 20, einer den Druckkessel 10 beaufschlagenden Druckkesselleitung 2.1 und einer in dem Kesselauslaß 12 mündenden Spülleitung 22.The blasting device consists of a pressure vessel 10 , a boiler outlet 12 provided with a metering valve, a jet nozzle 14 arranged at a distance from the pressure vessel, one connecting the boiler outlet with the jet nozzle 14 , the blasting agent line 16 , a pressure agent line 20 provided with a throttle 18 , and the pressure vessel 10 pressurizing boiler line 2.1 and a flushing line 22 opening into the boiler outlet 12 .

Die Druckmittelleitung 21 führt dabei von einem Kom­ pressor 23 erzeugte Druckluft in den oberen Bereich des Druckkessels 10. Zwischen dem Kompressor 23 und der Mün­ dung der Druckmittelleitung 21 in den Druckkessel 10 zweigt die Spülleitung 22, die in dem Kesselauslaß mün­ det, ab.The pressure medium line 21 leads from a compressor 23 Compressed air generated in the upper region of the pressure vessel 10th Between the compressor 23 and the Mün extension of the pressure medium line 21 in the pressure vessel 10 branches off the purge line 22 , the mün det in the boiler outlet from.

Die in dem Kompressor 23 erzeugte Druckluft wird über die Druckmittelleitung 20 im Bereich des Kesselauslasses 12 der zu der Strahldüse 14 führenden Strahlmittellei­ tung 16 zugeführt, wobei über die Drossel 18 eine be­ stimmte Druckdifferenz zwischen dem Kesseldruck und dem Druck am Kesselauslaß 12 einstellbar ist.The compressed air generated in the compressor 23 is supplied via the pressure medium line 20 in the area of the boiler outlet 12 to the jet nozzle 14 leading to the jet medium line 16 , a certain pressure difference between the boiler pressure and the pressure at the boiler outlet 12 being adjustable via the throttle 18 .

Um ein Verstopfen des Kesselauslasses 12 zu verhindern, wird dieser über eine Spülleitung 22 mit Druckluft be­ aufschlagt; diese "Luftdusche" bewirkt eine Auflockerung des in den Kesselauslaß 12 eingetretenen Sandes, der dann mit dem Luftstrom in die Strahlmittelleitung 16 ab­ fließt.In order to prevent the boiler outlet 12 from becoming blocked, it is opened with compressed air via a flushing line 22 ; this "air shower" causes a loosening of the sand that has entered the boiler outlet 12 , which then flows with the air flow into the abrasive line 16 .

Die Spülleitung ist dabei mit einem ein Stellventil 32 überbrückende Bypass-Leitung 34 versehen, die eine stän­ dige Luftspülung des Kesselauslasses 12 bewirkt.The purge line is provided with a bypass line 34 bridging a control valve 32 , which causes a constant air purge of the boiler outlet 12 .

Die Fig. 2, 3 und 4 zeigen alternative Ausbildungen des Druckmittelauslasses. Figs. 2, 3 and 4 show alternative embodiments of the Druckmittelauslasses.

Bei dem in Fig. 2 gezeigten Ausführungsbeispiel ist die Spülleitung 26 mit einer im Bereich des durch einen stellbaren Stopfen 30 verschließbaren mündenden Spüllan­ ze 26 versehen. Bei den Ausführungsbeispielen nach den Fig. 3 und 4 ist die Spülleitung als ein mit einer Viel­ zahl von Austrittsöffnungen versehener Luftduschkopf 24 ausgebildet.In the embodiment shown in Fig. 2, the flushing line 26 is provided with a flushing in the region of the closable by an adjustable stopper 30 Zeiss 26 . In the embodiments according to FIGS . 3 and 4, the flushing line is designed as an air shower head 24 provided with a large number of outlet openings.

Zum Trockensandstrahlen wird der als Strahlmittel die­ nende Sand über die Eingabeinrichtung 24 in den Druck­ kessel 10 eingegeben. Der Druckkessel 10 wird sodann durch Betreiben des Kompressors 23 mit Druckluft beauf­ schlagt. Durch Einstellen des Differenzdrucks über die Drossel 18 wird das Mischungsverhältnis zwischen der als Treibmittel dienenden Druckluft und dem aus dem Kessel 10 austretenden Sandes bestimmt.For dry sandblasting, the sand used as the abrasive is entered via the input device 24 into the pressure vessel 10 . The pressure vessel 10 is then struck by operating the compressor 23 with compressed air. By adjusting the differential pressure via the throttle 18 , the mixing ratio between the compressed air serving as a blowing agent and the sand emerging from the boiler 10 is determined.

Zum Feuchsandstrahlen wird der Druckkessel 10 vor dem Beginn des Strahlens weiter mit Wasser gefüllt, wodurch sich im Kessel eine Dreischichtung mit einer Feuchtsand­ schicht, einer Wasserschicht und einer aufliegenden Druckluftschicht ausbildet.For wet sand blasting, the pressure vessel 10 is further filled with water before the start of the blasting, as a result of which a three-layered formation with moist sand, a water layer and an overlying compressed air layer forms in the boiler.

Zum Betonstrahlen wird der Kessel mit Sand und Zement gefüllt, die Zugabe von Wasser erfolgt außerhalb des Kessels 10 im Bereich der Strahlmittelleitung mit einem zur Vermischung ausreichenden Abstand von der Strahldüse 14 oder auch durch Einbringen von Sprühwasser in das aus der Strahldüse 14 austretenden trockene Sand/Zement-Ge­ misch.For concrete blasting, the kettle is filled with sand and cement, water is added outside the kettle 10 in the area of the blasting agent line with a sufficient distance from the blasting nozzle 14 for mixing or by introducing spray water into the dry sand emerging from the blasting nozzle 14 / Cement mix.

Claims (6)

1. Strahlgerät mit einem mit einem Strahlmittel ge­ füllten, druckbeaufschlagten Druckkessel (10), einem mit einem Dosierventil versehenen Kesselauslaß (12), einer von dem Druckkessel entfernt angeordneten Strahl­ düse (14), einer den Kesselauslaß (12) mit der Strahl­ düse (14) verbindenden Strahlmittelleitung (16), einer als Treibmittel dienende Druckluft zu der Strahldüse (14) führenden, mit einer Drossel (18) versehenen Druckluftleitung (20), einer den Druckkessel (10) mit Druck beaufschlagenden Kesseldruckleitung (21) und einer in dem Kesselauslaß (12) mündenden Spülleitung (22)
dadurch gekennzeichnet, daß
  • - der Druckkessel (10) über die Kesseldruckleitung (21) mit Druckluft beaufschlagt wird, und
  • - die in dem Kesselauslaß (12) mündende Spülleitung (22) Druckluft führt.
1. blasting device with a ge filled with a blasting agent, pressurized pressure vessel ( 10 ), a boiler outlet ( 12 ) provided with a metering valve, a jet nozzle ( 14 ) arranged away from the pressure vessel, one of the boiler outlet ( 12 ) with the jet nozzle ( 14 ) connecting blasting medium line ( 16 ), a compressed air serving as a blowing agent to the blasting nozzle ( 14 ), with a throttle ( 18 ) provided compressed air line ( 20 ), a pressure vessel ( 10 ) pressurizing the boiler pressure line ( 21 ) and one in the Boiler outlet ( 12 ) flushing pipe ( 22 )
characterized in that
  • - The pressure vessel ( 10 ) via the boiler pressure line ( 21 ) is pressurized with compressed air, and
  • - The flushing line ( 22 ) leading into the boiler outlet ( 12 ) leads to compressed air.
2. Strahlgerät nach Anspruch 1, dadurch gekennzeich­ net, daß die Spülleitung (22) mit einem in dem Kessel­ auslaß (12) angeordneten Luftduschkopf (24) versehen ist.2. Blasting device according to claim 1, characterized in that the flushing line ( 22 ) with an outlet in the boiler ( 12 ) arranged air shower head ( 24 ) is provided. 3. Strahlgerät nach Anspruch 1, dadurch gekennzeich­ net, daß die Spülleitung (22) mit einer Luftspüllanze (26) versehen ist.3. Blasting device according to claim 1, characterized in that the flushing line ( 22 ) with an air purge lance ( 26 ) is provided. 4. Strahlgerät nach einem der vorangehenden Ansprü­ chen, dadurch gekennzeichnet, daß die Spülleitung (22) an einem Ort zwischen der Drossel (18) und dem Druck­ kessel (10) von der den Druckkessel mit Druckluft be­ auschlagenden Kesseldruckleitung (21) abzweigt.4. Blasting machine according to one of the preceding claims, characterized in that the flushing line ( 22 ) branches off at a location between the throttle ( 18 ) and the pressure boiler ( 10 ) from which the pressure tank with compressed air be deflected by the boiler pressure line ( 21 ). 5. Strahlgerät nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Druckkessel (10) mit einem Wasseranschluß versehen ist.5. Blasting device according to one of the preceding claims, characterized in that the pressure vessel ( 10 ) is provided with a water connection. 6. Strahlgerät nach einem der vorangehenden Ansprüche, gekennzeichnet durch eine Einrichtung zum Einbringen von Wasser in das von dem Druckkessel (10) abgegebene Strahlmittel.6. Blasting device according to one of the preceding claims, characterized by a device for introducing water into the blasting medium emitted by the pressure vessel ( 10 ).
DE19934335382 1993-10-16 1993-10-16 Blasting machine Expired - Fee Related DE4335382C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934335382 DE4335382C2 (en) 1993-10-16 1993-10-16 Blasting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934335382 DE4335382C2 (en) 1993-10-16 1993-10-16 Blasting machine

Publications (2)

Publication Number Publication Date
DE4335382A1 true DE4335382A1 (en) 1995-04-27
DE4335382C2 DE4335382C2 (en) 1997-05-07

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Family Applications (1)

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DE19934335382 Expired - Fee Related DE4335382C2 (en) 1993-10-16 1993-10-16 Blasting machine

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Country Link
DE (1) DE4335382C2 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19650171C1 (en) * 1996-12-04 1997-11-27 Kaesch Optiblast System Gmbh Abrasive sand-blasting appliance for use with dry or wet sand
WO2000051787A1 (en) * 1999-03-04 2000-09-08 Gagemark Limited Abrasive blasting apparatus
WO2003045633A1 (en) * 2001-11-22 2003-06-05 Quill International Industries Plc Abrasive blasting apparatus
WO2006083890A1 (en) * 2005-01-31 2006-08-10 Cold Jet Llc Particle blast cleaning apparatus with pressurized container
FR2883500A1 (en) * 2005-03-24 2006-09-29 Yannick Jego Mineral scraping and fossil cleaning device e.g. sand blaster apparatus, has dismountable mixer sets with interchangeable sprinklers that permit mixing of air and abrasive and have diameter chosen as function of aggregate
CN100436053C (en) * 2003-06-19 2008-11-26 友达光电股份有限公司 Sand material feeding groove
EP2457690A1 (en) * 2010-11-26 2012-05-30 Doriano Galassi Sandblasting machine
CN103100984A (en) * 2013-03-11 2013-05-15 重庆大学 Abrasive automatic feeding device and using method
CN107018654A (en) * 2014-11-06 2017-08-04 固瑞克明尼苏达有限公司 Wet-milling sand-spraying pot
US10076823B2 (en) * 2010-07-13 2018-09-18 Graco Minnesota Inc. Wet abrasive blasting system and method
CN110524436A (en) * 2019-07-26 2019-12-03 国通净美科技服务有限公司 A kind of sand blasting unit and cleaning system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE231679C (en) *
EP0059173A2 (en) * 1981-02-19 1982-09-01 C.I.S.A S.r.l. Sandblasting machine for the superficial cleaning of any kind of object
DE4212615C1 (en) * 1992-04-15 1993-05-19 Pro Aqua Geraete Gmbh, 2330 Kochendorf, De Wet sand blasting machine with pressurised water tank - has water supply interrupter to tank acting simultaneously with air supply interrupting to jet nozzle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE231679C (en) *
EP0059173A2 (en) * 1981-02-19 1982-09-01 C.I.S.A S.r.l. Sandblasting machine for the superficial cleaning of any kind of object
DE4212615C1 (en) * 1992-04-15 1993-05-19 Pro Aqua Geraete Gmbh, 2330 Kochendorf, De Wet sand blasting machine with pressurised water tank - has water supply interrupter to tank acting simultaneously with air supply interrupting to jet nozzle

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998024592A1 (en) * 1996-12-04 1998-06-11 Kaesch Optiblast-System Gmbh Dry and wet blasting device
DE19650171C1 (en) * 1996-12-04 1997-11-27 Kaesch Optiblast System Gmbh Abrasive sand-blasting appliance for use with dry or wet sand
WO2000051787A1 (en) * 1999-03-04 2000-09-08 Gagemark Limited Abrasive blasting apparatus
WO2003045633A1 (en) * 2001-11-22 2003-06-05 Quill International Industries Plc Abrasive blasting apparatus
US6896597B2 (en) 2001-11-22 2005-05-24 Quill International Industries, Plc Abrasive blasting apparatus
CN100436053C (en) * 2003-06-19 2008-11-26 友达光电股份有限公司 Sand material feeding groove
US8277288B2 (en) 2005-01-31 2012-10-02 Cold Jet Llc Particle blast cleaning apparatus with pressurized container
WO2006083890A1 (en) * 2005-01-31 2006-08-10 Cold Jet Llc Particle blast cleaning apparatus with pressurized container
FR2883500A1 (en) * 2005-03-24 2006-09-29 Yannick Jego Mineral scraping and fossil cleaning device e.g. sand blaster apparatus, has dismountable mixer sets with interchangeable sprinklers that permit mixing of air and abrasive and have diameter chosen as function of aggregate
US10076823B2 (en) * 2010-07-13 2018-09-18 Graco Minnesota Inc. Wet abrasive blasting system and method
EP2457690A1 (en) * 2010-11-26 2012-05-30 Doriano Galassi Sandblasting machine
CN103100984A (en) * 2013-03-11 2013-05-15 重庆大学 Abrasive automatic feeding device and using method
CN107018654A (en) * 2014-11-06 2017-08-04 固瑞克明尼苏达有限公司 Wet-milling sand-spraying pot
EP3215315A4 (en) * 2014-11-06 2018-05-30 Graco Minnesota Inc. Wet abrasive blast pot
CN110524436A (en) * 2019-07-26 2019-12-03 国通净美科技服务有限公司 A kind of sand blasting unit and cleaning system

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Publication number Publication date
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Owner name: ABREX OBERFLAECHENTECHNIK GMBH, 24340 WINDEBY, DE

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee