EP0042193B1 - Verfahren und Spritzvorrichtung zum Füllen eines Hohlraumes - Google Patents

Verfahren und Spritzvorrichtung zum Füllen eines Hohlraumes Download PDF

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Publication number
EP0042193B1
EP0042193B1 EP81200645A EP81200645A EP0042193B1 EP 0042193 B1 EP0042193 B1 EP 0042193B1 EP 81200645 A EP81200645 A EP 81200645A EP 81200645 A EP81200645 A EP 81200645A EP 0042193 B1 EP0042193 B1 EP 0042193B1
Authority
EP
European Patent Office
Prior art keywords
stream
section
supply section
spraying device
secondary 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.)
Expired
Application number
EP81200645A
Other languages
English (en)
French (fr)
Other versions
EP0042193A1 (de
Inventor
Gerardus Joseph Lambertus Smeets
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.)
Handelsmaatschappij Gesolan Na Nv
Original Assignee
Handelsmaatschappij Gesolan Na Nv
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 Handelsmaatschappij Gesolan Na Nv filed Critical Handelsmaatschappij Gesolan Na Nv
Priority to AT81200645T priority Critical patent/ATE9829T1/de
Publication of EP0042193A1 publication Critical patent/EP0042193A1/de
Application granted granted Critical
Publication of EP0042193B1 publication Critical patent/EP0042193B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1481—Spray pistols or apparatus for discharging particulate material
    • B05B7/1486—Spray pistols or apparatus for discharging particulate material for spraying particulate material in dry state
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06—Implements for applying plaster, insulating material, or the like
    • E04F21/08—Mechanical implements
    • E04F21/085—Mechanical implements for filling building cavity walls with insulating materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06—Implements for applying plaster, insulating material, or the like
    • E04F21/08—Mechanical implements
    • E04F21/12—Mechanical implements acting by gas pressure, e.g. steam pressure

Definitions

  • the invention relates to a process and a spraying device for the filling of hollow spaces by the injection of solid substances in the form of fibres or granules, such as glass wool, rock wool, synthetic polymers and other substances that are suitable for the said purpose.
  • spraying devices for this purpose were of such dimensions that large apertures had to be made in the wall in order to permit injection with a reasonable spraying quality, among other things.
  • Spraying devices with injection through smaller apertures are known from the Specifications: FR-A-2,416,786; EP-A-0,023,060; and DE­-B­-1,232,731.
  • the flakes of fibrous material are torn apart by the turbulent motion, making it possible to attain very low bulk densities, for instance of about 30 kg/m 3 .
  • the primary air pressure is preferably between 1.1 and 1.5 bar (abs.), and the secondary air pressure between 2 and 10 bar (abs.), in particular approximately 5 bar (abs).
  • the process according to the invention permits considerably higher rates of filling than were customary up to now, for instance in the order of 2.5-3.5 kg/min.
  • the invention also relates to a spraying device for conducting the process described hereinbefore.
  • the spraying device consists of a supply section provided with a passage (2) with a substantially conical longitudinal section and a round cross-section, and, coaxially with this supply section, an outlet section comprising a nozzle (61) connected by means of a coupling piece (63) to the supply section (1), which supply section (1) merges on a level with its smallest diameter into an annular orifice (4) characterised in that the annular orifice (4) is provided with grooves (5) which are arranged at an angle of between 5 and 15° with respect to the longitudinal axis of the device so as to impart a helical motion to the secondary stream.
  • the outlet section is attached to the inlet section by means of a coupling piece in such a way, that an air chamber for the secondary air is provided in order to ensure an even distribution of the secondary air through the circular orifice.
  • the figure depicts a longitudinal section through the spraying device.
  • the spraying device comprises the supply section 1 having a passage 2.
  • the largest diameter of the passage 2 is at the end 3 where the substance to be injected is introduced in the direction of the arrow together with the primary compressed air.
  • the supply section 1 merges into an annular orifice 4 which is provided on its outer circumference with the grooves 5 set at an angle a to the axis of the spraying device.
  • the width of the angle a is between 5 and 15° and is preferably about ten degrees.
  • the outlet section is composed of the nozzle 61 which is detachably connected, for instance by means of a screw thread 62, to the coupling piece 63.
  • This coupling piece is in its turn detachably connected, for instance by means of a screw thread 12, to the supply section 1.
  • an annular space is left for an air chamber 8 which communicates with an aperture 9 for the supply of secondary air.
  • the air chamber 8 communicates by way of the grooves 5 of the annular organ 4 with the passage 7 of the nozzle 61.
  • the material to be injected is fed by means of the primary compressed air into the inlet pipe 2 at the end 3 passes through the aperture of the annular orifice 4 to reach the passage 7 of the nozzle 61.
  • secondary air is fed in through the aperture 9 and also finds its way to the passage 7 by way of the air chamber 8 and the grooves 5.
  • the secondary air is introduced along a helical path into passage 7 through the grooves set at the angle ⁇ , so that a uniform distribution of the substance to be injected and, in consequence a uniform distribution throughout the cavity is achieved.
  • the uniform distribution can be promoted still further by the provision of rifles and lands in the part of the passage 7 that is located between the nozzle tip of the outlet section and the annular orifice 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nozzles (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Catching Or Destruction (AREA)

Claims (3)

1. Verfahren zum Füllen von Hohlräumen durch Injektion fester Substanzen in Form von Faserstoffen oder Granulaten mittels eines Primär-Luftstrahles, wobei dieser Strahl in dem Moment, in dem er in den zu füllenden Raum eindringt, mit einem ringförmigen Sekundär-Luftstrahl unter einem Druck, der über dem Primär-Luftdruck lieft, gemischt wird, dadurch gekennzeichnet, daß der Sekundär-Luftstrahl in eine Schrauben- und/oder spiralförmige Bewegung oder Strömung versetzt wird, die die äußeren Schichten des Primär-Luftstrahls umhüllt und sich mit diesem vermischt.
2. Spritzvorrichtung zur Durchführung des Verfahrens nach Anspruch 1, wobei die Vorrichtung aus einem Speiseabschnitt (1), der mit einem im Längsschnitt im wesentlichen konischen und im Querschnitt runden Kanal (2) versehen ist, und aus einem koaxial zu diesem Speiseabschnitt ausgebildeten Auslaßabschnitt mit einer Düse (61) besteht, die mittels eines Kupplungsstückes (63) an den Speiseabschnitt (1) angeschlossen ist, der in der Höhe seiner kleinsten Durchmessers in eine ringförmige Öffnung (4) übergeht, dadurch gekennzeichnet, daß die ringförmige Öffnung (4) mit Schlitzen (5) versehen ist, die unter einem Winkel zwischen 5° und 15° in Bezug auf die Längsachse der Vorrichtung so angeordnet sind, daß sie dem sekundären Strahl eine schrauben- oder sprailförmige Bewegung geben.
3. Spritzvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß eine Luftkammer (8) zwischen dem Speiseabschnitt (1) und dem Kupplungsstück (63) vorgesehen ist, um eine gleichmäßige Verteilung der Sekundär-Luft durch die Schlitze (5) zu gewährleisten, und daß die Luftkammer (8) sowohl mit der Öffnung (9) für die Zufuhr der Sekundär-Luft als auch mit der Öffnung (7) des Auslaßabschnitts durch die Schlitze (5) der ringförmigen Öffnung (4) in Verbindung steht.
EP81200645A 1980-06-17 1981-06-12 Verfahren und Spritzvorrichtung zum Füllen eines Hohlraumes Expired EP0042193B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81200645T ATE9829T1 (de) 1980-06-17 1981-06-12 Verfahren und spritzvorrichtung zum fuellen eines hohlraumes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE1009851 1980-06-17
BE1/9851A BE883848A (nl) 1980-06-17 1980-06-17 Spuitstuk

Publications (2)

Publication Number Publication Date
EP0042193A1 EP0042193A1 (de) 1981-12-23
EP0042193B1 true EP0042193B1 (de) 1984-10-10

Family

ID=3862912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200645A Expired EP0042193B1 (de) 1980-06-17 1981-06-12 Verfahren und Spritzvorrichtung zum Füllen eines Hohlraumes

Country Status (5)

Country Link
EP (1) EP0042193B1 (de)
AT (1) ATE9829T1 (de)
BE (1) BE883848A (de)
DE (1) DE3166576D1 (de)
DK (1) DK259781A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573328B1 (fr) * 1984-11-19 1987-06-12 Riedel Paul Dispositif pour injecter un produit fibreux ou granule en vrac dans une cavite
FR2947466B1 (fr) * 2009-07-06 2012-06-22 Isol Finance Sa Dispositif de projection d'une composition fibreuse ou pulverulente humidifiee comprenant des moyens pour homogeneiser la composition a projeter et procede de projection associe
JP5767689B2 (ja) * 2013-12-11 2015-08-19 黒崎播磨株式会社 溶射装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023060A2 (de) * 1979-07-20 1981-01-28 Talmer BV Vorrichtung zum Füllen des Hohlraumes einer Hohlmauer mit einem isolierenden Material, wie Stein- oder Glaswolle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH320682A (fr) * 1954-07-30 1957-04-15 Parisienne Outillage Appareil pour la projection d'un matériau plastique au moyen d'un fluide comprimé
DE1232731B (de) * 1960-05-27 1967-01-19 Goodyear Aerospace Corp Spruehduese fuer das Verspruehen eines Gemisches aus Luft, Harz und Fasern
FR2302789A1 (fr) * 1975-03-06 1976-10-01 Campenon Bernard Sa Perfectionnement aux lances a beton
DE2641195A1 (de) * 1976-09-14 1978-03-16 Schlecht Karl Drei-komponenten-spritzduese
GB2012620B (en) * 1978-01-24 1982-05-19 British Petroleum Co Method of filling a cavity
FR2416786A1 (fr) * 1978-02-13 1979-09-07 Lezier Gerard Perfectionnement apporte aux pistolets d'injection de billes preexpansees dans les moules des presses fabriquant des pieces en polystyrene expanse

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023060A2 (de) * 1979-07-20 1981-01-28 Talmer BV Vorrichtung zum Füllen des Hohlraumes einer Hohlmauer mit einem isolierenden Material, wie Stein- oder Glaswolle

Also Published As

Publication number Publication date
EP0042193A1 (de) 1981-12-23
DE3166576D1 (en) 1984-11-15
DK259781A (da) 1981-12-18
BE883848A (nl) 1980-10-16
ATE9829T1 (de) 1984-10-15

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