EP2605961A2 - Device for sandblasting uses exhaust gas from a jet engine for blasting - Google Patents

Device for sandblasting uses exhaust gas from a jet engine for blasting

Info

Publication number
EP2605961A2
EP2605961A2 EP20110783103 EP11783103A EP2605961A2 EP 2605961 A2 EP2605961 A2 EP 2605961A2 EP 20110783103 EP20110783103 EP 20110783103 EP 11783103 A EP11783103 A EP 11783103A EP 2605961 A2 EP2605961 A2 EP 2605961A2
Authority
EP
European Patent Office
Prior art keywords
cleaning
engine
jet
heating
accordance
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
EP20110783103
Other languages
German (de)
French (fr)
Other versions
EP2605961A4 (en
EP2605961B1 (en
Inventor
Bo Winterskov
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2605961A2 publication Critical patent/EP2605961A2/en
Publication of EP2605961A4 publication Critical patent/EP2605961A4/en
Application granted granted Critical
Publication of EP2605961B1 publication Critical patent/EP2605961B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/024—Cleaning by means of spray elements moving over the surface to be cleaned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials

Definitions

  • the invention relates to an apparatus for heating and cleaning of items, surfaces, joints and similar where the intention is to remove weathering, wear and dirt or added coating.
  • This is achieved in accordance with the invention by using a lightweight jet engine with a special engine housing to which has been added an aggregate injector that can dose aggregate materials into the exhaust jet, which thereby cleans and dries the blasted area while being advanced manually or by self-propulsion.
  • the area is cleaned by the use of a high-pressure system with air or water directly or with aggregate cleaning agents, such as, by way of example, sand, which are subsequently heat- treated with gas burners with a naked or indirect flame.
  • aggregate cleaning agents such as, by way of example, sand
  • the known technique has the requisite characteristics, but it is inexpedient to first employ heavyweight high-pressure systems powered by diesel or petrol engines, which discharge large quantities of heat directly into the environment through their exhaust and cooling systems and to then employ a second source of energy for subsequent heat-treatment by gas burners supplied with propane from pressurised cylinder systems.
  • These systems involve the disadvantage of handling and transporting "hazardous goods" and also constitute a serious security problem due to the risk of terrorism that has now led to the imposition of severe security requirements and restrictions on their use at mobile workplaces which use and store gas in pressurised cylinders and tanks.
  • the jet engine sucks in air through a filter unit that can be mounted directly on and around the engine unit, or disposed at a distance from the cleaning area, supplying the air through a flexible supporting structure.
  • the exhaust nozzle can be adapted for various tasks: it can, by way of example, be elaborated as a narrow and long nozzle, for deep treatment of joints and cracks, or as a wide and short nozzle for treating large surfaces.
  • a heating and cleaning apparatus in accordance with this invention can be executed for simple manual operation mounted on a lightweight frame or trolley, or two or more devices can be mounted together on a self-propelled manned or remote-controlled advancing arrangement .
  • Figure A illustrates a device in accordance with the invention for simple operation, with fuel and aggregate conveyed with it in a lightweight arrangement, where said fuel and aggregate are admitted through hose connections .
  • Figure B illustrates multiple devices mounted in an arrangement that can advanced remotely or be connected to a manned self-propelled vehicle.
  • FIG. A an apparatus is seen with a lightweight jet engine mounted under an engine housing (2) , with an aggregate injector for admitting the cleaning medium into the hot exhaust jet which is discharged through a blast nozzle (1) .
  • the intake air is led through an air-and-noise filter unit (3) , and the jet engine is here controlled by control device disposed in the handle (4) .
  • Everything is here mounted on a simple mobile frame with an armrest (5) , where the fuel tank. (6) and aggregate container (7) are conveyed with it on a lightweight trolley (8) .
  • the apparatus for heating and cleaning is illustrated here fitted with a ballast weight (9) and load- relieving and spacer wheels (10) .
  • Figure B a second embodiment of a apparatus for heating and cleaning is seen, with multiple engine units (2), with blast nozzles (1) and an intake filter (3), here mounted in an advancing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Cleaning In General (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)

Abstract

A heat gun for the cleaning and heat treatment of surfaces, joints, cracks and the like by the use of a hot blast jet produced by the exhaust jet of a jet engine, where aggregate injectors have been added in the engine jacket for the admixture of a cleaning medium, such as sand, granulate material or liquid. A heat gun according to figure A exhibits a lightweight jet engine arranged under an engine jacket 2, with an aggregate injector, which is capable of dosing a cleaning medium admitted into the hot exhaust jet, which is discharged through an exhaust nozzle 1 directed at the item to be treated. The engine is controlled electronically by a device 4 and is advanced on a lightweight frame 5, which may be fitted with a ballast weight 9 and spacer wheels 10, or be mounted on an advancing arrangement 8. The jet engine is powered by liquid fuel supplied from a tank 6. Intake air is cleaned and sound-damped in a filter unit 3, and the combustion takes place at a high pressure and is discharged hot and in a high velocity exhaust jet, to which cleaning media fed from a tank 7 are added.

Description

Heating and cleaning apparatus for surface treatment
The invention relates to an apparatus for heating and cleaning of items, surfaces, joints and similar where the intention is to remove weathering, wear and dirt or added coating. This is achieved in accordance with the invention by using a lightweight jet engine with a special engine housing to which has been added an aggregate injector that can dose aggregate materials into the exhaust jet, which thereby cleans and dries the blasted area while being advanced manually or by self-propulsion.
Mutually independent systems are often used in the methods known today. First, the area is cleaned by the use of a high-pressure system with air or water directly or with aggregate cleaning agents, such as, by way of example, sand, which are subsequently heat- treated with gas burners with a naked or indirect flame. In
principle, the known technique has the requisite characteristics, but it is inexpedient to first employ heavyweight high-pressure systems powered by diesel or petrol engines, which discharge large quantities of heat directly into the environment through their exhaust and cooling systems and to then employ a second source of energy for subsequent heat-treatment by gas burners supplied with propane from pressurised cylinder systems. These systems involve the disadvantage of handling and transporting "hazardous goods" and also constitute a serious security problem due to the risk of terrorism that has now led to the imposition of severe security requirements and restrictions on their use at mobile workplaces which use and store gas in pressurised cylinders and tanks.
It is known from patent publication Dl GB614725A that by employing a blast of hot exhaust air generated by a jet engine's exhaust, which, after being discharged through a pipe and hose system, is admitted to a work area where a dosing device for the admixture of sand or similar has been added to an exhaust nozzle for cleaning by
sandblasting can thereby be obtained.
In the case of the invention mentioned by way of introduction, an effective tool is provided for cleaning and heat-treatment in one operation, wherein the disadvantages of the known technique are remedied. This is achieved by use of a lightweight jet engine in which a liquid fuel, such as, by way of example, petrol or diesel oil, is injected under electronic control into a compressed
combustion chamber out of which the exhaust air is discharged from the engine housing by way of an aggregate injector for sand or similar cleaning medium, which is dosed and discharged through one or more nozzles to the area to be cleaned. The jet engine sucks in air through a filter unit that can be mounted directly on and around the engine unit, or disposed at a distance from the cleaning area, supplying the air through a flexible supporting structure. The exhaust nozzle can be adapted for various tasks: it can, by way of example, be elaborated as a narrow and long nozzle, for deep treatment of joints and cracks, or as a wide and short nozzle for treating large surfaces. When the exhaust jet is pointed at an item, the exhaust nozzle will be subjected to a counterforce that will attempt to press the nozzle away from the item. For this reason it may be expedient to use a ballast weight and spacer wheels for easy advance and for maintaining a suitable distance between the nozzle and item. A heating and cleaning apparatus in accordance with this invention can be executed for simple manual operation mounted on a lightweight frame or trolley, or two or more devices can be mounted together on a self-propelled manned or remote-controlled advancing arrangement .
The invention is further explained below with reference to a drawing in which:
Figure A illustrates a device in accordance with the invention for simple operation, with fuel and aggregate conveyed with it in a lightweight arrangement, where said fuel and aggregate are admitted through hose connections .
Figure B illustrates multiple devices mounted in an arrangement that can advanced remotely or be connected to a manned self-propelled vehicle.
In Figure A, an apparatus is seen with a lightweight jet engine mounted under an engine housing (2) , with an aggregate injector for admitting the cleaning medium into the hot exhaust jet which is discharged through a blast nozzle (1) . The intake air is led through an air-and-noise filter unit (3) , and the jet engine is here controlled by control device disposed in the handle (4) . Everything is here mounted on a simple mobile frame with an armrest (5) , where the fuel tank. (6) and aggregate container (7) are conveyed with it on a lightweight trolley (8) . The apparatus for heating and cleaning is illustrated here fitted with a ballast weight (9) and load- relieving and spacer wheels (10) .
In Figure B, a second embodiment of a apparatus for heating and cleaning is seen, with multiple engine units (2), with blast nozzles (1) and an intake filter (3), here mounted in an advancing
arrangement (8) which can carry with it fuel (6) and aggregate materials (7) and be advanced and controlled from a self-propelled manned or remote-controlled unit.

Claims

Patent claims
1. Apparatus for heating and cleaning of surfaces, joints and
similar using hot blast air generated by a turbojet engine, characterised by an engine housing (2) with an injector for admixture of a cleaning medium which is discharged through an exhaust nozzle (1) .
2. Apparatus for heating and cleaning in accordance with claim 1, characterised by being set up on a lightweight frame for manual advance .
3. Apparatus for heating and cleaning, in accordance with claim 1, characterised in that one or more engine units (2) are mounted in an advancing arrangement (8) .
4. Apparatus for heating and cleaning in accordance with claims 1, 2 and 3, characterised in that intake air is supplied to the engine through a filter unit (3) .
5. Apparatus for heating and cleaning, in accordance with claims
1 and 2, characterised in that the exhaust nozzle (1) has been elaborated as a long narrow nozzle for the treatment of cracks and joints.
6. Apparatus for heating and cleaning, in accordance with claims
1 and 2, characterised in that the exhaust nozzle (1) has been elaborated as a short wide nozzle for the cleaning and heat- treatment of surfaces.
7. Apparatus for heating and cleaning, in accordance with claims 1 and 2, characterised by an adjustable ballast weight (9), mounted to counteract lifting on application of the force from the exhaust nozzle (1) .
8. Apparatus for heating and cleaning, in accordance with claims 1 and 2, characterised by being fitted with adjustable load- relieving spacer wheels (10) .
EP11783103.2A 2010-05-20 2011-05-18 Device for sandblasting uses exhaust gas from a jet engine for blasting Active EP2605961B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201000441A DK201000441A (en) 2010-05-20 2010-05-20 Sandblasting apparatus uses exhaust gas from a jet engine for sandblasting
PCT/DK2011/000047 WO2011144210A2 (en) 2010-05-20 2011-05-18 Heating and cleaning apparatus for surface treatment

Publications (3)

Publication Number Publication Date
EP2605961A2 true EP2605961A2 (en) 2013-06-26
EP2605961A4 EP2605961A4 (en) 2014-10-01
EP2605961B1 EP2605961B1 (en) 2015-11-04

Family

ID=44992140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11783103.2A Active EP2605961B1 (en) 2010-05-20 2011-05-18 Device for sandblasting uses exhaust gas from a jet engine for blasting

Country Status (5)

Country Link
US (1) US20130089824A1 (en)
EP (1) EP2605961B1 (en)
CN (1) CN103124674B (en)
DK (2) DK201000441A (en)
WO (1) WO2011144210A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2975168B1 (en) * 2011-05-13 2013-08-16 Sefmat HOT AIR GENERATING APPARATUS WITH IMPROVED IGNITION.
GB2524036A (en) * 2014-03-12 2015-09-16 Wallwork Cambridge Ltd Erosive wear testing apparatus and method
USD891473S1 (en) * 2014-04-22 2020-07-28 Bo Winterskov Shield for containing and distributing turbojet engine combustion exhaust
DE202015005988U1 (en) 2015-08-28 2015-10-26 Andreas Rupprecht Appliance with a single-jet jet engine for drying, heating and / or removing contaminants from traffic areas

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB614725A (en) * 1946-07-22 1948-12-22 Schori Metallising Process Ltd Improvements in or relating to sandblasting
US2610622A (en) * 1947-01-31 1952-09-16 Coggin Gray Burner mechanism
US2836036A (en) * 1953-10-27 1958-05-27 Star Co Fuel feeding and ignition means for pulse jet type hot gas or steam generator
US3173413A (en) * 1962-04-02 1965-03-16 Weyerhaeuser Co Pavement heater
US4625509A (en) * 1980-04-21 1986-12-02 Sheppard Sr Darrel J Combustion engine
US4855004A (en) * 1987-06-26 1989-08-08 Clements National Company Seam welding machine for thermoplastic material
CN2053133U (en) * 1989-10-06 1990-02-21 冶金工业部建筑研究总院 Self-suction-type light circulating sand ejector
US5285769A (en) * 1992-10-13 1994-02-15 Washington State University Research Foundation Aerosol generating rotary pulse-jet orchard heater
CN2198072Y (en) * 1994-06-28 1995-05-24 四川长平机械厂 Box type sand blasting machine
CN2260684Y (en) * 1996-05-10 1997-08-27 汪世学 Mould sand-blower
US6367469B1 (en) * 2000-03-23 2002-04-09 Zacho Bo Ravnsbaek Jet blaster device
CN2470399Y (en) * 2001-04-09 2002-01-09 中国人民解放军第5704工厂 Jet-type cleaning vehicle for airport path
US20030091950A1 (en) * 2001-11-14 2003-05-15 Eclipse, Inc. Industrial gas burner package
CN101648196A (en) * 2009-09-11 2010-02-17 王鸿智 Blowing interface of blowing and sucking machine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO2011144210A2 *

Also Published As

Publication number Publication date
EP2605961A4 (en) 2014-10-01
CN103124674B (en) 2016-03-30
DK2605961T3 (en) 2016-02-08
US20130089824A1 (en) 2013-04-11
WO2011144210A2 (en) 2011-11-24
WO2011144210A3 (en) 2012-05-03
DK201000441A (en) 2011-11-21
WO2011144210A9 (en) 2012-06-21
CN103124674A (en) 2013-05-29
EP2605961B1 (en) 2015-11-04

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