EP1180550A2 - Blaslanze - Google Patents
Blaslanze Download PDFInfo
- Publication number
- EP1180550A2 EP1180550A2 EP01810781A EP01810781A EP1180550A2 EP 1180550 A2 EP1180550 A2 EP 1180550A2 EP 01810781 A EP01810781 A EP 01810781A EP 01810781 A EP01810781 A EP 01810781A EP 1180550 A2 EP1180550 A2 EP 1180550A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- annular gap
- air supply
- blow lance
- 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.)
- Withdrawn
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title 1
- 229910052760 oxygen Inorganic materials 0.000 title 1
- 239000001301 oxygen Substances 0.000 title 1
- 230000001133 acceleration Effects 0.000 claims abstract description 6
- 238000007664 blowing Methods 0.000 claims description 13
- 239000003570 air Substances 0.000 description 34
- 239000012080 ambient air Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3121—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
- B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
- B01F25/3141—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit with additional mixing means other than injector mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
- B01F25/3143—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit characterised by the specific design of the injector
- B01F25/31432—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit characterised by the specific design of the injector being a slit extending in the circumferential direction only
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/919—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings
- B01F2025/9191—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component
- B01F2025/919125—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component with feed openings in the center and at the circumference of the main flow
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
Definitions
- the invention relates to a blowing lance according to the preamble of the independent Claim.
- Air-operated nozzles are known as blowing lances, as they are widely used For example, to clean workpieces etc. using compressed air. You assign one Compressed air supply and a valve. When the valve is opened, compressed air flows due to a longer or shorter piece of pipe with a small diameter, which thus works as a nozzle. The free end of the nozzle is often specially shaped. This Blow lances have the disadvantage that the power comes from the air compressor is determined because it limits the maximum pressure and the maximum flow rate.
- the object of the invention is to provide a blowing lance in which these disadvantages are overcome.
- blowing lance can be used as well Suction lance, that is, for sucking in gaseous or liquid media and even of solid particles can be used.
- Figure 1 shows a longitudinal section through the suction lance.
- the blowing lance 1 has a lance body 11. At one end of the lance body is a suction port 7 available. Here suction elements such as a suction pipe etc. be connected.
- the air intake A is also located here opposite end of the lance body 11 is the air outlet B, where the Air is blown out.
- air inlet A air is drawn in from the environment.
- the body of the lance reaches the sucked-in air from air inlet A into a vacuum chamber 2 with a somewhat enlarged cross section.
- a nozzle tube 31 projects from one side here into it. The nozzle tube is bent and runs concentrically inside into one Narrowing the cross section in the direction of the air outlet B.
- the nozzle tube 31 belongs to a venturi nozzle.
- the open end of the nozzle tube 31 is approximately in Area of the point with the narrowest cross-section. At this point there is an annular gap nozzle 4 arranged. An acceleration space connects to the annular gap nozzle 4.
- the Cross-section continuously expanded again to the air outlet B.
- the air outlet B can be blowing elements such as a pipe, a blowing nozzle, a container, a filter or the like can be connected.
- Annular gap nozzle 4 Compressed air is supplied from the outside to the annular gap nozzle 4. It consists of one Annular gap 41. Annular gap 41 has a rear wall which is perpendicular to Direction of air flow. In the direction of flow, i.e. towards the air outlet B, is the Annular gap slightly expanded. It has an area here at least once is angled. In the example shown, a first nozzle angle 42 determines one circumferential surface with an inclination of 60 ° with respect to the center line of the Lance body. This is followed by another with a second nozzle angle 43 circumferential surface with an inclination angle of about 30 °. This directed Expansion of the annular gap 41 of the annular gap nozzle 4 leaves the pressure here blown air already a higher at the entrance to the acceleration room Assume flow velocity.
- the Venturi nozzle 3 and the annular gap nozzle 4 can with separate compressed air lines be fed. But you can also use both, as shown, on the same Compressed air line can be connected. It is crucial that the ratio of the Pressure in both nozzles is correct.
- the cross section can be done in the simplest way a first compressed air supply line 61 to the nozzle tube 31 and the cross section of a second Compressed air supply line 62 to the annular gap 41 can be designed accordingly. It recommends at least one of the compressed air supply lines 61, 62 with a pressure control valve equip. It is then very easy to achieve the optimal flow by means of fine metering the blow lance.
- blowing lance according to the invention permits many possible uses.
- Some Examples include air cleaning guns, injectors, powder and dust conveyors, Filter feeding units, etc. called.
- dust and liquid suction systems are built on the suction side, because the suction effect is comparable to the blowing effect.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
Description
Claims (10)
- Blaslanze zum Anschluss mit einer Luftzufuhr unter Druck, dadurch gekennzeichnet, dass die Blaslanze einen Lufteinlass (A) und einen Luftauslass (B) aufweist, und dass zwischen dem Lufteinlass (A) und dem Luftauslass (B) eine Venturidüse (3) mit einem Lufteinlass und einem Düsenrohr (31) und eine Ringspaltdüse (4) mit einem Ringspalt (41) angeordnet sind, wobei das Düsenrohr (31) der Venturidüse (3) und die Ringspaltdüse (4) an der Luftzufuhr unter Druck angeschlossen sind
- Blaslanze nach Anspruch 1, dadurch gekennzeichnet, dass zwischen dem Lufteinlass (A) und der Venturidüse (3) ein Unterdruckraum vorhanden ist.
- Blaslanze nach Anspruch 1, dadurch gekennzeichnet, dass zwischen Ringspaltdüse (4) und Luftauslass ein Beschleunigungsraum (5) vorhanden ist.
- Blaslanze nach Anspruch 1, dadurch gekennzeichnet, dass das Düsenrohr (31) der Venturidüse (3) in Strömungsrichtung mindestens bis zur Ringspaltdüse (4) reicht.
- Blaslanze nach Anspruch 1, dadurch gekennzeichnet, dass die Ringspaltdüse (4) einen Ringspalt (41) mit einem ersten Düsenwinkel (42) und einem zweiten anschliessenden Düsenwinkel (43) aufweist.
- Blaslanze nach Anspruch 5, dadurch gekennzeichnet, dass die Venturidüse (3) eine erste Druckluftzufuhr (61) aufweist, und dass die Ringspaltdüse (4) eine zweite Druckluftzufuhr (62) aufweist.
- Blaslanze nach Anspruch 6, dadurch gekennzeichnet, dass der ersten Druckluftzufuhr (61) und der zweiten Druckluftzufuhr (62) getrennt Druckluft zuführbar ist.
- Blaslanze nach Anspruch 6, dadurch gekennzeichnet, dass die erste Druckluftzufuhr (61) und die zweite Druckluftzufuhr (62) an einer gemeinsamen Luftzufuhr unter Druck (6) angeschlossen sind.
- Blaslanze nach Anspruch 1, dadurch gekennzeichnet, dass im Bereich der Luftzufuhr (A) ein Sauganschluss (7), zum Anschliessen von Saugelementen, und/oder im Bereich des Luftauslasses (B) ein Blasanschluss zum Anschliessen von Blaselementen, vorhanden ist.
- Blaslanze nach Anspruch 6, dadurch gekennzeichnet, dass das Verhältnis des Druckes im Düsenrohr (31) und im Ringspalt (41) einstellbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH15892000 | 2000-08-17 | ||
CH15892000 | 2000-08-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1180550A2 true EP1180550A2 (de) | 2002-02-20 |
Family
ID=4565577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01810781A Withdrawn EP1180550A2 (de) | 2000-08-17 | 2001-08-14 | Blaslanze |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1180550A2 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011101637A1 (en) * | 2010-02-17 | 2011-08-25 | Pursuit Dynamics Plc | Apparatus and method for entraining fluids |
EP3995715A1 (de) * | 2020-11-10 | 2022-05-11 | Akwel | Vorrichtung und entschmutzungssystem zur rückgewinnung von bremsstaubpartikeln |
-
2001
- 2001-08-14 EP EP01810781A patent/EP1180550A2/de not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011101637A1 (en) * | 2010-02-17 | 2011-08-25 | Pursuit Dynamics Plc | Apparatus and method for entraining fluids |
CN102753256A (zh) * | 2010-02-17 | 2012-10-24 | 推进动力公司 | 用于夹带流体的设备和方法 |
US9010379B2 (en) | 2010-02-17 | 2015-04-21 | Pursuit Marine Drive Limited | Apparatus and method for entraining fluids |
EP3995715A1 (de) * | 2020-11-10 | 2022-05-11 | Akwel | Vorrichtung und entschmutzungssystem zur rückgewinnung von bremsstaubpartikeln |
FR3116092A1 (fr) * | 2020-11-10 | 2022-05-13 | Akwel | Dispositif et système dépolluant de récupération de particules de poussières de freinage. |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
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AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHWEIZER, WALTER |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHWEIZER, WALTER |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHWEIZER, WALTER |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHWEIZER, WALTER |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHWEIZER, WALTER |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20040302 |