US20130089824A1 - Heating And Cleaning Apparatus For Surface Treatment - Google Patents
Heating And Cleaning Apparatus For Surface Treatment Download PDFInfo
- Publication number
- US20130089824A1 US20130089824A1 US13/678,985 US201213678985A US2013089824A1 US 20130089824 A1 US20130089824 A1 US 20130089824A1 US 201213678985 A US201213678985 A US 201213678985A US 2013089824 A1 US2013089824 A1 US 2013089824A1
- Authority
- US
- United States
- Prior art keywords
- exhaust
- engine
- heat gun
- cleaning
- jet
- 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.)
- Abandoned
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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 a tool for surface treatment by cleaning and drying of surfaces, joints and the like, where the intention is to remove weathering, wear or unintentionally added coatings prior to further surface treatment, if any.
- the known technique has all the requisite characteristics, but it is inexpedient to first employ heavyweight high-pressure systems powered by diesel or petrol engines, which discharge 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 from pressurized gas systems, which, in addition to the drawback of handling and transporting “hazardous goods”, now also constitute a serious security problem due to the risk of terrorism, which has led to the imposition of very severe security requirements and restrictions for workplaces which use and store gas in pressurized cylinders and tanks.
- the invention provides an effective tool for cleaning and heat treatment in one operation, whereby disadvantages of the known technique are remedied.
- This is achieved in accordance with the invention by using a lightweight turbojet engine with an engine jacket with a connecting member, which, supplied with an aggregate injector, is capable of dosing one or more aggregate materials into the exhaust jet, which thereby cleans and dries the blasted area while being advanced manually or by a self-propelling unit.
- the invention uses 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 jacket with an aggregate injector for sand or similar cleaning medium, which is dosed and discharged through one or more exhaust nozzles to the surface to be cleaned.
- the jet engine sucks in clean air through a dirt and noise reducing filter unit, which may be mounted directly on and around the engine unit, or be disposed at a distance from the cleaning area, supplying clean air through a system of hoses or the like.
- the exhaust nozzle may be adapted for various tasks, for example narrow and pointed for depth treatment of joints and cracks, or flat and wide for surface treatment.
- a heat gun may be constructed for simple manual operation, mounted on a lightweight frame or trolley, or a number of these may be mounted together on a self-propelled, manned or remote-controlled advancing arrangement.
- FIG. 1 shows a heat gun according to the invention for simple operation, with fuel and aggregate in a lightweight arrangement, which are admitted through hose connections not shown here.
- FIG. 2 shows multiple heat guns mounted in an arrangement which may be mounted on a self-propelled, manned vehicle, or be advanced under remote control.
- FIG. 1 shows a heat gun with a lightweight jet engine mounted under an engine jacket 2 , with an aggregate injector for admitting cleaning medium into the hot exhaust jet, which is discharged through an exhaust nozzle 1 .
- the intake air is passed through an air and noise filter unit 3 , and the jet engine is controlled here by a control device disposed in a handle 4 .
- Everything is mounted here on a simple lightweight and mobile frame with an armrest 5 , where a fuel tank 6 and an aggregate container 7 are carried along on a lightweight trolley 8 .
- the heat gun is shown fitted with an adjustable ballast weight 9 and adjustable load-relieving and spacer wheels 10 .
- FIG. 2 shows a second embodiment of a heat gun with multiple engine units 2 , with exhaust nozzles 1 and an intake filter 3 , here mounted in an advancing arrangement 8 which can carry along fuel 6 and aggregate materials 7 .
- everything is advanced and controlled from a self-propelled, manned or remote-controlled unit, not shown.
- a heat gun for the cleaning and heat treatment of surfaces, joints and the like using hot blast air generated by a turbojet engine is characterized by an engine jacket ( 2 ) with an injector for admixture of a cleaning medium which is discharged through an exhaust nozzle ( 1 ). Intake air may be supplied to the engine through an air filter unit ( 3 ).
- the heat gun may be set up on a lightweight frame for manual advance. Alternatively, the heat gun may include one or more engine jackets ( 2 ) mounted in an advancing arrangement ( 8 ).
- the exhaust nozzle ( 1 ) is configured as a long narrow nozzle for the treatment of cracks and joints. In another, the exhaust nozzle ( 1 ) is configured as a short wide nozzle for the cleaning and heat treatment of surfaces.
- the heat gun may include an adjustable ballast weight ( 9 ), mounted to counteract lifting on application of force from the exhaust nozzle ( 1 ) and/or be fitted with adjustable load-relieving and spacer wheels ( 10 ).
- a heat gun for the cleaning and heat treatment of surfaces, joints, cracks and the like uses 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.
- the heat gun 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, for discharge 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, into which the cleaning media is fed from a tank 7 .
Abstract
A heat gun for cleaning and heat treating surfaces uses a lightweight jet engine to generate a hot blast of exhaust, with aggregate injectors in an engine jacket arranged over the jet engine admixing a cleaning medium with the hot exhaust. The cleaning medium admitted into the hot exhaust jet is discharged through an exhaust nozzle 1 directed at the item to be treated. The engine is controlled electronically and 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. Combustion takes place at a high pressure and the exhaust discharged hot in a high velocity exhaust jet containing the cleaning media.
Description
- This application is a continuation of PCT International patent application No. PCT/DK2011/000047, filed 18 May 2011, claiming priority in Danish patent application no. PA2010 00441, filed 20 May 2010, the contents of which are hereby incorporated by reference.
- The invention relates to a tool for surface treatment by cleaning and drying of surfaces, joints and the like, where the intention is to remove weathering, wear or unintentionally added coatings prior to further surface treatment, if any.
- Mutually independent systems are often used in the methods known today for the cleaning and heat treatment of surfaces and items. First, cleaning is performed by a high-pressure system with water or air directly or with admixture of cleaning agents, such as, by way of example, sand, and subsequently heat treatment is performed with gas burners with a naked or indirect flame. In principle, the known technique has all the requisite characteristics, but it is inexpedient to first employ heavyweight high-pressure systems powered by diesel or petrol engines, which discharge 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 from pressurized gas systems, which, in addition to the drawback of handling and transporting “hazardous goods”, now also constitute a serious security problem due to the risk of terrorism, which has led to the imposition of very severe security requirements and restrictions for workplaces which use and store gas in pressurized cylinders and tanks.
- It is known from patent publication GB 614725A to employ hot exhaust air generated by the exhaust of a jet engine, 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 the like is added to an exhaust nozzle, which can thus clean by sandblasting.
- The invention provides an effective tool for cleaning and heat treatment in one operation, whereby disadvantages of the known technique are remedied. This is achieved in accordance with the invention by using a lightweight turbojet engine with an engine jacket with a connecting member, which, supplied with an aggregate injector, is capable of dosing one or more aggregate materials into the exhaust jet, which thereby cleans and dries the blasted area while being advanced manually or by a self-propelling unit.
- The invention uses 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 jacket with an aggregate injector for sand or similar cleaning medium, which is dosed and discharged through one or more exhaust nozzles to the surface to be cleaned. The jet engine sucks in clean air through a dirt and noise reducing filter unit, which may be mounted directly on and around the engine unit, or be disposed at a distance from the cleaning area, supplying clean air through a system of hoses or the like. The exhaust nozzle may be adapted for various tasks, for example narrow and pointed for depth treatment of joints and cracks, or flat and wide for surface treatment. When the exhaust jet is directed at an item to be cleaned, the exhaust nozzle will be affected strongly by an oppositely directed impact which will attempt to lift the nozzle off the item, and therefore it may be expedient to use an adjustable ballast weight and spacer wheels to facilitate advance and to maintain a suitable distance between the nozzle and the item. A heat gun may be constructed for simple manual operation, mounted on a lightweight frame or trolley, or a number of these may be mounted together on a self-propelled, manned or remote-controlled advancing arrangement.
- The invention will be explained more fully below with reference to the drawing, in which:
-
FIG. 1 shows a heat gun according to the invention for simple operation, with fuel and aggregate in a lightweight arrangement, which are admitted through hose connections not shown here. -
FIG. 2 shows multiple heat guns mounted in an arrangement which may be mounted on a self-propelled, manned vehicle, or be advanced under remote control. -
FIG. 1 shows a heat gun with a lightweight jet engine mounted under anengine jacket 2, with an aggregate injector for admitting cleaning medium into the hot exhaust jet, which is discharged through anexhaust nozzle 1. The intake air is passed through an air andnoise filter unit 3, and the jet engine is controlled here by a control device disposed in ahandle 4. Everything is mounted here on a simple lightweight and mobile frame with anarmrest 5, where afuel tank 6 and anaggregate container 7 are carried along on alightweight trolley 8. Here, the heat gun is shown fitted with anadjustable ballast weight 9 and adjustable load-relieving andspacer wheels 10. -
FIG. 2 shows a second embodiment of a heat gun withmultiple engine units 2, withexhaust nozzles 1 and anintake filter 3, here mounted in an advancingarrangement 8 which can carry alongfuel 6 andaggregate materials 7. Here, everything is advanced and controlled from a self-propelled, manned or remote-controlled unit, not shown. - A heat gun for the cleaning and heat treatment of surfaces, joints and the like using hot blast air generated by a turbojet engine, is characterized by an engine jacket (2) with an injector for admixture of a cleaning medium which is discharged through an exhaust nozzle (1). Intake air may be supplied to the engine through an air filter unit (3). The heat gun may be set up on a lightweight frame for manual advance. Alternatively, the heat gun may include one or more engine jackets (2) mounted in an advancing arrangement (8). In one embodiment, the exhaust nozzle (1) is configured as a long narrow nozzle for the treatment of cracks and joints. In another, the exhaust nozzle (1) is configured as a short wide nozzle for the cleaning and heat treatment of surfaces. The heat gun may include an adjustable ballast weight (9), mounted to counteract lifting on application of force from the exhaust nozzle (1) and/or be fitted with adjustable load-relieving and spacer wheels (10).
- In summary, a heat gun for the cleaning and heat treatment of surfaces, joints, cracks and the like uses 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. The heat gun 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, for discharge through anexhaust nozzle 1 directed at the item to be treated. The engine is controlled electronically by adevice 4 and is advanced on alightweight frame 5, which may be fitted with aballast weight 9 andspacer wheels 10, or be mounted on an advancingarrangement 8. The jet engine is powered by liquid fuel supplied from atank 6. Intake air is cleaned and sound-damped in afilter unit 3, and the combustion takes place at a high pressure and is discharged hot and in a high velocity exhaust jet, into which the cleaning media is fed from atank 7.
Claims (8)
1. A heat gun for the cleaning and heat treatment of surfaces comprises:
a turbojet engine for generating a hot blast of exhaust through an exhaust nozzle (1); and,
an engine jacket (2) having an injector for admixture of a cleaning medium with the exhaust which are discharged through the exhaust nozzle (1).
2. The heat gun according to claim 1 , further comprising a lightweight frame for manual advance of the turbojet engine and engine jacket.
3. The heat gun according to claim 1 , further comprising two or more engine units (2) mounted together in an advancing arrangement (8).
4. The heat gun according to claim 1 , further comprising an air filter unit (3) for filtering intake air supplied to the turbojet engine.
5. The heat gun according to claim 1 , wherein the exhaust nozzle (1) is configured as a long narrow nozzle.
6. The heat gun according to claim 1 , wherein the exhaust nozzle (1) is configured as a short wide nozzle.
7. The heat gun according to claim 1 , further comprising an adjustable ballast weight (9), mounted to counteract a lifting force from discharge of the exhaust against the surface receiving the treatment.
8. The heat gun according to claim 1 , further comprising wheels (10) for supporting movement of the heat gun.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/258,230 US20140322659A1 (en) | 2010-05-20 | 2014-04-22 | Heating Apparatus And Method For Treatment Of Weeds |
Applications Claiming Priority (3)
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 |
DKPA201000441 | 2010-05-20 | ||
PCT/DK2011/000047 WO2011144210A2 (en) | 2010-05-20 | 2011-05-18 | Heating and cleaning apparatus for surface treatment |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DK2011/000047 Continuation WO2011144210A2 (en) | 2010-05-20 | 2011-05-18 | Heating and cleaning apparatus for surface treatment |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/258,230 Continuation-In-Part US20140322659A1 (en) | 2010-05-20 | 2014-04-22 | Heating Apparatus And Method For Treatment Of Weeds |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130089824A1 true US20130089824A1 (en) | 2013-04-11 |
Family
ID=44992140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/678,985 Abandoned US20130089824A1 (en) | 2010-05-20 | 2012-11-16 | Heating And Cleaning Apparatus For Surface Treatment |
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) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120288809A1 (en) * | 2011-05-13 | 2012-11-15 | Sefmat | Hot air generator device with improved lighting |
USD891473S1 (en) * | 2014-04-22 | 2020-07-28 | Bo Winterskov | Shield for containing and distributing turbojet engine combustion exhaust |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2524036A (en) * | 2014-03-12 | 2015-09-16 | Wallwork Cambridge Ltd | Erosive wear testing apparatus and method |
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 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US5285769A (en) * | 1992-10-13 | 1994-02-15 | Washington State University Research Foundation | Aerosol generating rotary pulse-jet orchard heater |
US6367469B1 (en) * | 2000-03-23 | 2002-04-09 | Zacho Bo Ravnsbaek | Jet blaster device |
US20030091950A1 (en) * | 2001-11-14 | 2003-05-15 | Eclipse, Inc. | Industrial gas burner package |
Family Cites Families (6)
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 |
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 |
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 |
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 |
CN101648196A (en) * | 2009-09-11 | 2010-02-17 | 王鸿智 | Blowing interface of blowing and sucking machine |
-
2010
- 2010-05-20 DK DKPA201000441A patent/DK201000441A/en not_active Application Discontinuation
-
2011
- 2011-05-18 CN CN201180025152.1A patent/CN103124674B/en active Active
- 2011-05-18 EP EP11783103.2A patent/EP2605961B1/en active Active
- 2011-05-18 DK DK11783103.2T patent/DK2605961T3/en active
- 2011-05-18 WO PCT/DK2011/000047 patent/WO2011144210A2/en active Application Filing
-
2012
- 2012-11-16 US US13/678,985 patent/US20130089824A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US5285769A (en) * | 1992-10-13 | 1994-02-15 | Washington State University Research Foundation | Aerosol generating rotary pulse-jet orchard heater |
US6367469B1 (en) * | 2000-03-23 | 2002-04-09 | Zacho Bo Ravnsbaek | Jet blaster device |
US20030091950A1 (en) * | 2001-11-14 | 2003-05-15 | Eclipse, Inc. | Industrial gas burner package |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120288809A1 (en) * | 2011-05-13 | 2012-11-15 | Sefmat | Hot air generator device with improved lighting |
USD891473S1 (en) * | 2014-04-22 | 2020-07-28 | Bo Winterskov | Shield for containing and distributing turbojet engine combustion exhaust |
Also Published As
Publication number | Publication date |
---|---|
WO2011144210A3 (en) | 2012-05-03 |
CN103124674A (en) | 2013-05-29 |
WO2011144210A9 (en) | 2012-06-21 |
DK201000441A (en) | 2011-11-21 |
EP2605961A4 (en) | 2014-10-01 |
CN103124674B (en) | 2016-03-30 |
DK2605961T3 (en) | 2016-02-08 |
WO2011144210A2 (en) | 2011-11-24 |
EP2605961B1 (en) | 2015-11-04 |
EP2605961A2 (en) | 2013-06-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |