-
公开(公告)号：ID21315A
公开(公告)日：1999-05-20
申请号：ID980235
申请日：1998-02-19
Applicant: PRAXAIR TECHNOLOGY INC
Inventor： ANDERSON JOHN ERLING , FARRENKOPF DENNIS ROBERT
Abstract: A system for producing a coherent jet of gas wherein a flame envelope is established around a gas jet and directed toward the center axis of the gas jet.
-
公开(公告)号：ID20060A
公开(公告)日：1998-09-24
申请号：ID980362
申请日：1998-03-12
Applicant: PRAXAIR TECHNOLOGY INC
Inventor： MATHUR PRAVIN CHANDRA , SELINES RONALD JOSEPH , ANDERSON JOHN ERLING
Abstract: A method for effectively providing main gas into a pool of molten metal, which is particularly useful for use in an electric arc furnace. The method employs combustion of secondary oxygen with fuel to form a flame envelope around a main gas stream which protects the main gas from entrainment of ambient gases as it passes through the headspace of the furnace. This enables the gas to retain to a substantial degree its original force upon injection into the headspace and thus may be injected into the furnace at a safe distance from the molten metal surface while still achieving substantially complete penetration into the molten metal.
-
公开(公告)号：AU5842598A
公开(公告)日：1998-09-24
申请号：AU5842598
申请日：1998-03-16
Applicant: PRAXAIR TECHNOLOGY INC
Inventor： ANDERSON JOHN ERLING , MATHUR PRAVAN CHANDRA , SELINES RONALD JOSEPH
IPC: B01J10/00 , B01F3/04 , B01F5/02 , C21C5/46 , C21C5/48 , C21C7/072 , F23D14/22 , F27D7/02 , F27D3/16
Abstract: A method for introducing gas into a liquid wherein a gas stream is ejected from a lance spaced above the liquid surface and directed from the lance onto the liquid surface. The gas retains substantially all its original jet axis velocity when it contacts the liquid surface, and substantially all of the gas penetrates the liquid surface and is introduced into the liquid. Preferably the gas stream is surrounded by a flame envelope running from the lance to the liquid surface, which shields the gas from ambient gas entrainment. The gas stream preferably forms a gas cavity within the liquid having a diameter substantially the same as the diameter of the gas stream as it is ejected from the lance.
-
公开(公告)号：DE68915613D1
公开(公告)日：1994-07-07
申请号：DE68915613
申请日：1989-03-10
Applicant: PRAXAIR TECHNOLOGY INC
Inventor： ANDERSON JOHN ERLING
Abstract: A low velocity oxidant stream is injected into a combustion zone (3) through an annular opening (7) in proximity to a high velocity main oxidant stream injected through orifice (12). Gaseous fuel is provided to combustion zone (3) through passage (6) in proximity to the low velocity oxidant stream.
-
公开(公告)号：DE68915611D1
公开(公告)日：1994-07-07
申请号：DE68915611
申请日：1989-03-10
Applicant: PRAXAIR TECHNOLOGY INC
Inventor： ANDERSON JOHN ERLING
Abstract: A low velocity fuel stream is injected into a combustion zone (3) through an annular opening (7) in proximity to a high velocity main fuel stream injected through orifice (12). Oxidant is provided to combustion zone (3) through passage (6) in proximity to the low velocity fuel stream.
-
Patent Agency Ranking
公开(公告)号：NO322546B1
公开(公告)日：2006-10-23
申请号：NO20001677
申请日：2000-03-31
Applicant: PRAXAIR TECHNOLOGY INC
Inventor： ANDERSON JOHN ERLING , FARRENKOPF DENNIS ROBERT , SEMENZA RICHARD THOMAS , MATHUR PRAVIN CHANDRA , MAHONEY WILLIAM JOHN
IPC: C22B9/05 , C21C5/30 , F23D14/22 , C21C5/46 , C21C5/48 , C21C7/072 , C22B13/02 , C22B15/06 , C22B19/32 , F23D14/32 , F27B3/22 , F27D7/02
Abstract: A system for establishing a plurality of coherent gas jets (20) proximate one another using a single lance (1) wherein a plurality of gas jets (20) are ejected from a corresponding plurality of nozzles (3) in a lance (1) and a flame envelope (21) is established around the plurality of gas jets (20), and the jets remain distinct and do not coalesce for their length.
-
公开(公告)号：MY122227A
公开(公告)日：2006-03-31
申请号：MYPI9902488
申请日：1999-06-16
Applicant: PRAXAIR TECHNOLOGY INC
Inventor： ANDERSON JOHN ERLING , MATHUR PRAVIN CHANDRA
Abstract: A SYSTEM FOR ESTABLISHING AND MAINTAINING A SUPERSONIC COHERENT GAS JET, EFFECTIVE WITH EITHER AN OXIDIZING OR AN INERT GAS, EMPLOYING A CONVERGING/DIVERGING NOZZLE FOR ESTABLISHMENT OF A NONDISRUPTIVE INITIAL SUPERSONIC VELOCITY, AND A SLOWER MOVING DEFINED TRIPLE LAYERED FLAME ENVELOPE COAXIAL WITH THE JET FOR EFFECTIVE MAINTENANCE OF THE SUPERSONIC VELOCITY. THE INVENTION IS PARTICULARLY USEFUL FOR PROVIDING GAS INTO A POOL OF LIQUID.
-
公开(公告)号：CA2275099C
公开(公告)日：2006-01-31
申请号：CA2275099
申请日：1999-06-16
Applicant: PRAXAIR TECHNOLOGY INC
Inventor： MATHUR PRAVIN CHANDRA , ANDERSON JOHN ERLING
IPC: F02K1/28 , F23R3/02 , B05B1/00 , C21C5/46 , F04F5/22 , F23D14/22 , F23D14/32 , F23D14/84 , F23R3/46 , F27D3/16
Abstract: A system for establishing and maintaining a supersonic coherent gas jet, effective with either an oxidizing or an inert gas, employing a converging/diverging nozzle for establishment of a non-disruptive initial supersonic velocity, and a slower moving defined triple layered flame envelope coaxial with the jet for effective maintenance of the supersonic velocity. The invention is particularly useful for providing gas into a pool of liquid.
-
公开(公告)号：DE60114317D1
公开(公告)日：2005-12-01
申请号：DE60114317
申请日：2001-08-01
Applicant: PRAXAIR TECHNOLOGY INC
Inventor： ANDERSON JOHN ERLING , MAHONEY WILLIAM JOHN , SARMA BALU , FARRENKOPF DENNIS ROBERT
Abstract: A lance which may be used to generate a longer coherent gas jet having inflowing and outflowing coolant fluid passages which are in flow communication and which straddle the flame envelope fluid passages, all of which are coaxial with the main passageway.
-
公开(公告)号：CA2354498C
公开(公告)日：2005-11-01
申请号：CA2354498
申请日：2001-08-01
Applicant: PRAXAIR TECHNOLOGY INC
Inventor： FARRENKOPF DENNIS ROBERT , ANDERSON JOHN ERLING , MAHONEY WILLIAM JOHN , SARMA BALU
Abstract: A lance which may be used to generate a longer coherent gas jet having inflowing and outflowing coolant fluid passages which are in flow communication and which straddle the flame envelope fluid passages, all of which are coaxial with the main passageway.
-
-
-
-
-
-
-
-
-
Search Results
197
records
(took 0.027 seconds)
