公开(公告)号：BR0204058A

公开(公告)日：2004-05-18

申请号：BR0204058

申请日：2002-10-02

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： MAHONEY WILLIAM JOHN ,  ANDERSON JOHN ERLING

IPC: C21C5/46 ,  C21C5/52 ,  F23D11/10 ,  F23D11/38 ,  F23D11/44 ,  F23L7/00 ,  F23D14/48

Abstract: A method and apparatus for establishing one or more coherent jets from a lance wherein liquid fuel is provided into a recession on the lance face along with motive gas, and is used to generate a flame shroud to maintain jet coherency.

公开(公告)号：DE60008056D1

公开(公告)日：2004-03-11

申请号：DE60008056

申请日：2000-10-10

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： MAHONEY WILLIAM JOHN ,  ANDERSON JOHN ERLING

IPC: B22D1/00 ,  C21B11/00 ,  C21C5/46 ,  C21C7/072 ,  C22B9/05 ,  C22B9/10 ,  F23D14/22 ,  F23D14/32 ,  F23D17/00 ,  F23L7/00 ,  F27D3/00 ,  F27D3/18 ,  F27D3/16 ,  B01F3/04

Abstract: An arrangement wherein a coherent jet (62) is established proximate to a powder injection system and the coherent jet not only provides for gas delivery but also serves to improve the efficiency of the delivery of powder from the powder injection system. The arrangement provides in forming a flame envelope (63) around both the gas stream (62) and the powder mixture stream (67) delivered to a liquid, e.g. molten metal (65), from a gas jet nozzle (5,61) and a lance passage (66) for powder and carrier gas injection.

公开(公告)号：CA2281380C

公开(公告)日：2003-12-23

申请号：CA2281380

申请日：1999-09-03

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： WAGNER LINCOLN MATTHEW ,  FRANCIS ARTHUR WELLINGTON JR ,  ANDERSON JOHN ERLING ,  LEGER CHRISTOPHER BRIAN

IPC: B01F23/10 ,  B01J3/00 ,  B01J3/02 ,  B01J12/00 ,  B01J19/00 ,  B01J19/26 ,  C01B32/40

Abstract: The invention comprises a reactor having a source of a first hot reactant gas, a mixing chamber in which said first hot reactant gas mixes with a second reactant gas to form a reactant gas mixture, but wherein substantially no reaction takes place and a reaction zone wherein said mixture undergoes vapor phase reaction. A process for using the reactor is also disclosed.

公开(公告)号：CA2322676C

公开(公告)日：2003-09-16

申请号：CA2322676

申请日：2000-10-10

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： MAHONEY WILLIAM JOHN ,  ANDERSON JOHN ERLING

IPC: B22D1/00 ,  C21B11/00 ,  C21C5/46 ,  C21C7/072 ,  C22B9/05 ,  C22B9/10 ,  F23D14/22 ,  F23D14/32 ,  F23D17/00 ,  F23L7/00 ,  F27D3/00 ,  F27D3/18 ,  B01J4/00 ,  C21C5/32

Abstract: An arrangement wherein a coherent jet is established proximate to a powder injection system and the coherent jet not only provides for gas delivery but also serves to improve the efficiency of the delivery of powder from the powder injection system.

公开(公告)号：ES2175544T3

公开(公告)日：2002-11-16

申请号：ES98104713

申请日：1998-03-16

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： MATHUR PRAVIN CHANDRA ,  SELINES RONALD JOSEPH ,  ANDERSON JOHN ERLING

IPC: C21C7/072 ,  C21C5/46 ,  C21C5/52 ,  F27B3/22 ,  F27D3/16 ,  F27B3/08

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：BR0103173A

公开(公告)日：2002-03-26

申请号：BR0103173

申请日：2001-08-01

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： ANDERSON JOHN ERLING ,  MAHONEY WILLIAM JOHN ,  SARMA BALU ,  FARRRENKOPF DENNIS ROBERT

IPC: C21C5/46 ,  F27B3/08 ,  F27B3/22 ,  F27D3/16 ,  F27D99/00 ,  C21C5/52

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：BR0101141A

公开(公告)日：2001-10-30

申请号：BR0101141

申请日：2001-03-23

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： ANDERSON JOHN ERLING ,  BOOL LAWRENCE E III ,  ARNOLD GLENN WILLIAM ,  LEGER HRISTOPHER BRIAN

IPC: B05B7/06 ,  B05B7/16 ,  F23D11/10 ,  F23G7/00 ,  F23L15/00 ,  B05D1/06

Abstract: A method for atomizing a fluid (6) wherein a gas (1) is heated with the heating facilitating the acceleration of the gas (1) to a high velocity. The accelerated gas (1) contacts the fluid (6) transferring shear, pressure and inertial forces and heat to the fluid (6) effecting efficient atomization of the fluid (6).

公开(公告)号：CA2333807A1

公开(公告)日：2001-08-02

申请号：CA2333807

申请日：2001-02-01

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： ANDERSON JOHN ERLING ,  SARMA BALU ,  SELINES RONALD JOSEPH ,  MATHUR PRAVIN CHANDRA

IPC: C21C7/072 ,  F23C5/14 ,  F23D14/22 ,  F23D14/32 ,  F23L7/00 ,  F23D14/58 ,  F15D1/08 ,  F27D3/16

Abstract: A system for providing gases into an injection volume in one or more coherent gas jets proximate to one or more turbulent gas jets wherein a coherent gas jet is formed in a forming volume with a flame envelope prior to passage into the injection volume into which the turbulent gas jets are directly passed.

公开(公告)号：BR0005221A

公开(公告)日：2001-07-03

申请号：BR0005221

申请日：2000-11-01

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： MAHONEY WILLIAM JOHN ,  ANDERSON JOHN ERLING

IPC: F23D14/54 ,  C21C5/46 ,  C22B9/05 ,  F23D14/22 ,  F23D14/48 ,  F27D3/16 ,  F27D7/02 ,  F27D99/00 ,  F23D14/38

Abstract: A system for establishing a single coherent gas jet from a plurality of initial gas jets ejected from a single lance wherein the initial gas jets are themselves coherent, are angled inward, and are surrounded by a flame envelope. The initial coherent gas jets merge to form a single coherent jet and the gases of the initial gas jets do not substantially interact within this single coherent jet for the length of the resulting single coherent gas jet.

公开(公告)号：AU734537B2

公开(公告)日：2001-06-14

申请号：AU9325798

申请日：1998-11-19

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： ANDERSON JOHN ERLING ,  MATHUR PRAVAN CHANDRA ,  SELINES RONALD JOSEPH

IPC: C21C5/48 ,  C21C5/46 ,  C21C5/52 ,  C21C7/072 ,  C21C5/35 ,  C21C7/068

Abstract: A lance which may be used to establish a long coherent gas jet which includes a primary passageway having a converging/diverging nozzle, and two radially spaced secondary passageways for establishing a flame barrier, each of the passageways communicating with an injection space defined by a protective jacket. Additional to these main passageways the jacket may comprise one or two other passages for the supply of fluid or solid streams.