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WO1993024276A1 - Machine portative de traitement abrasif de planchers, de routes et analogue, pourvue d'une conduite droite pour la recuperation du materiau abrasif - Google Patents

Machine portative de traitement abrasif de planchers, de routes et analogue, pourvue d'une conduite droite pour la recuperation du materiau abrasif Download PDF

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Publication number
WO1993024276A1
WO1993024276A1 PCT/IT1993/000054 IT9300054W WO9324276A1 WO 1993024276 A1 WO1993024276 A1 WO 1993024276A1 IT 9300054 W IT9300054 W IT 9300054W WO 9324276 A1 WO9324276 A1 WO 9324276A1
Authority
WO
WIPO (PCT)
Prior art keywords
duct
recovery
abrasive
abrasive material
floors
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.)
Ceased
Application number
PCT/IT1993/000054
Other languages
English (en)
Inventor
Berengario Gaboardi
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.)
TRIMMER Srl
Original Assignee
TRIMMER Srl
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 TRIMMER Srl filed Critical TRIMMER Srl
Publication of WO1993024276A1 publication Critical patent/WO1993024276A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
    • B24C3/06—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable
    • B24C3/065—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable with suction means for the abrasive and the waste material
    • B24C3/067—Self-contained units for floorings

Definitions

  • the present invention concerns the portable machines for the treatment of surfaces with abrasive particles ejected at high speed against the treated surface, and in particular refers to a portable machine for the abrasive treatment of floors, roads and the like, provided with a straight duct for the recovery of the abrasive material.
  • this recovery duct has a decreasing cross section in the direction of the materials flow to favour their going up towards the separator.
  • the second fundamental characteristic common to the abrasive material recovery ducts mounted on the machines of known type is that said ducts are continuously curved, since it is believed that this shape further favours the going up motion of the materials inside the ducts.
  • the presence of discontinuities in the curvature of the recovery duct involves greater difficulties in going up for the materials, due to the impacts on the different segments of the duct and the consequent losses of kinetic energy of the particles.
  • the object of the present invention is therefore to provide a machine of the above-mentioned type wherein the recovery duct mantains unchanged the characteristic of the decreasing of the cross section in the direction of the flow of abrasive material, but whose construction results much easier and cheaper than that of the recovery ducts of known type.
  • This object is achieved by means of a portable machine for the abrasive treatment of surfaces provided with a duct for the recovery of the abrasive material, wherein said duct is straight.
  • a portable machine according to the present invention has the advantage of mounting a larger feed hopper, for the feeding of the abrasive material, compared to those which equip the known machines. Since in this type of working a fair amount of abrasive particles is wasted, a machine according to the present invention, which can be supplied with a larger volume of abrasive material, has the great advantage of a longer working endurance compared to the conventional machines.
  • the abrasive material in particles represented by white arrows, gathered in a hopper 1 reaches, through a feed duct 2, a centrifugal wheel or rotor 3 driven in a known way by a motor 4.
  • the abrasive material is then thrown at high speed through a throwing duct 5 and hits the surface 6 to be treated, removing an upper layer 7 which, being reduced to shivers and dust, is schematized by the dark arrows.
  • the abrasive particles go back up, mixed to the removed material 7, along a straight recovery duct 8 until they reach a chamber which forms an air washing separator 9 in its upper part, while its lower part forms the said hopper 1.
  • the duct 8 has converging walls in order to favour the upward motion of the materials therein. This effect may be obtained both with a continuous convergence for the whole length of the duct, as shown in the drawing, and with a duct with the initial part of constant cross section.
  • the figure also schematically shows with a hatched line the recovery duct 8' and the hopper 1' of a machine according to the prior art. Therefore, it is apparent that, compared to said art, the area where the separation of the abrasive particles to be recycled from the scraps takes place is much greater in the machine according to the present invention, so that the air cleaning operation of the abrasive material is more effective.
  • the hopper 1 has a greater capacity than the hopper 1' of the machines according to the prior art, so that the machine according to the present invention may be supplied with a greater amount of abrasive material. Since some of said material is dispersed on the treated surface and some more is lost together with the dust and scraps, it is clear that a more capacious hopper assures a greater endurance to the machine according to the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

L'invention concerne une machine portative pour le traitement abrasif de planchers, de routes et analogue pourvue d'une conduite droite (8) pour la récupération du matériau abrasif réutilisable.
PCT/IT1993/000054 1992-05-27 1993-05-24 Machine portative de traitement abrasif de planchers, de routes et analogue, pourvue d'une conduite droite pour la recuperation du materiau abrasif Ceased WO1993024276A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT92MI001302A ITMI921302A1 (it) 1992-05-27 1992-05-27 Macchina portatile per il trattamento abrasivo di pavimenti, strade e simili provvista di condotto rettilineo per il recupero del
ITMI92A001302 1992-05-27

Publications (1)

Publication Number Publication Date
WO1993024276A1 true WO1993024276A1 (fr) 1993-12-09

Family

ID=11363403

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1993/000054 Ceased WO1993024276A1 (fr) 1992-05-27 1993-05-24 Machine portative de traitement abrasif de planchers, de routes et analogue, pourvue d'une conduite droite pour la recuperation du materiau abrasif

Country Status (2)

Country Link
IT (1) ITMI921302A1 (fr)
WO (1) WO1993024276A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1030219B (de) * 1956-10-30 1958-05-14 Werner Osenberg Dr Ing Mit losem Korn arbeitende Planschleifvorrichtung
US4020596A (en) * 1974-11-11 1977-05-03 Wheelabrator-Frye, Inc. Convertible blast cleaning unit
GB1518785A (en) * 1976-05-12 1978-07-26 Worldwide Blast Cleaning Ltd Apparatus for blast cleaning vertical or inclined surface
EP0081364A2 (fr) * 1981-12-07 1983-06-15 Autoblast Limited Machine de nettoyage au moyen d'un jet abrasif
EP0350965A2 (fr) * 1988-07-15 1990-01-17 Kammerlohr, Friedrich Dispositif de sablage pour le sablage de grandes surfaces par projection de particules abrasives entraînées dans un courant d'air
EP0391441A2 (fr) * 1989-04-07 1990-10-10 Tilghman Wheelabrator Limited Outil de sablage portatif pour le sablage des surfaces
GB2239412A (en) * 1987-04-03 1991-07-03 Williams N L Eng Ltd Apparatus for abrasive treatment of surfaces
DE9113251U1 (de) * 1991-10-24 1992-02-06 GKSS-Forschungszentrum Geesthacht GmbH, 2054 Geesthacht Vorrichtung zur Rückführung von Strahlmittel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1030219B (de) * 1956-10-30 1958-05-14 Werner Osenberg Dr Ing Mit losem Korn arbeitende Planschleifvorrichtung
US4020596A (en) * 1974-11-11 1977-05-03 Wheelabrator-Frye, Inc. Convertible blast cleaning unit
GB1518785A (en) * 1976-05-12 1978-07-26 Worldwide Blast Cleaning Ltd Apparatus for blast cleaning vertical or inclined surface
EP0081364A2 (fr) * 1981-12-07 1983-06-15 Autoblast Limited Machine de nettoyage au moyen d'un jet abrasif
GB2239412A (en) * 1987-04-03 1991-07-03 Williams N L Eng Ltd Apparatus for abrasive treatment of surfaces
EP0350965A2 (fr) * 1988-07-15 1990-01-17 Kammerlohr, Friedrich Dispositif de sablage pour le sablage de grandes surfaces par projection de particules abrasives entraînées dans un courant d'air
EP0391441A2 (fr) * 1989-04-07 1990-10-10 Tilghman Wheelabrator Limited Outil de sablage portatif pour le sablage des surfaces
DE9113251U1 (de) * 1991-10-24 1992-02-06 GKSS-Forschungszentrum Geesthacht GmbH, 2054 Geesthacht Vorrichtung zur Rückführung von Strahlmittel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 10 (M-446)(2067) 16 January 1986 *

Also Published As

Publication number Publication date
ITMI921302A1 (it) 1993-11-29
ITMI921302A0 (it) 1992-05-27

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