公开(公告)号：ID20066A

公开(公告)日：1998-09-24

申请号：ID980354

申请日：1998-03-10

Applicant: PRAXAIR TECHNOLOGY INC

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

IPC: B01F3/04 ,  B01J10/00 ,  B01F5/02 ,  C21C5/46 ,  C21C5/48 ,  C21C7/072 ,  F23D14/22 ,  F27D7/02 ,  F28F21/00

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：AT159804T

公开(公告)日：1997-11-15

申请号：AT93115580

申请日：1993-09-27

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： ANDERSON JOHN ERLING

IPC: F23C3/00 ,  F23D14/66 ,  F23L7/00

Abstract: A method for providing oxidant (3) into a combustion zone (2) employing a thermal nozzle (1) converting thermal energy into kinetic energy whereby a high injection velocity may be attained even at a low oxidant supply pressure and the injection velocity may be varied at any given supply pressure without changing nozzles or using an adjustable nozzle.

公开(公告)号：DE69215705T2

公开(公告)日：1997-06-12

申请号：DE69215705

申请日：1992-02-04

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： ANDERSON JOHN ERLING ,  SNYDER WILLIAM JOSEPH

IPC: F23D14/20 ,  F23D14/32 ,  F23C7/00 ,  F23D14/22

Abstract: Combustion method and apparatus establishing coherent jet oxidant flow within a cavity recessed from the main combustion area enabling operation without need for water cooling.

公开(公告)号：CA2107044C

公开(公告)日：1996-09-03

申请号：CA2107044

申请日：1993-09-27

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： ANDERSON JOHN ERLING

IPC: F23C3/00 ,  F23D14/66 ,  F23L7/00 ,  F23D14/32

Abstract: A method for providing oxidant into a combustion zone employing a thermal nozzle converting thermal energy into kinetic energy whereby a high injection velocity may be attained even at a low oxidant supply pressure and the injection velocity may be varied at any given supply pressure without changing nozzles or using an adjustable nozzle.

公开(公告)号：BR9403512A

公开(公告)日：1995-05-16

申请号：BR9403512

申请日：1994-09-12

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： ANDERSON JOHN ERLING ,  FARRENKOPF DENNIS ROBERT ,  FRANCIS ARTHUS WELLINGTON JR ,  SLADER STEVEN LESLIE ,  SNYDER WILLIAM JOSEPH

IPC: F23C6/04 ,  F23D14/04 ,  F23D14/32 ,  F23L7/00 ,  F02M25/10

Abstract: A combustion system wherein a defined uniform nonstoichiometric mixture of fuel and oxygen is made in a compartment outside a furnace zone and burned inside the furnace zone in a luminous flame while additional make up oxygen is provided into the furnace zone under conditions which avoid diminution of flame luminosity and high NOx generation.

公开(公告)号：CA2379591C

公开(公告)日：2006-12-05

申请号：CA2379591

申请日：2002-03-28

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： ANDERSON JOHN ERLING ,  MAHONEY WILLIAM JOHN ,  SELINES RONALD JOSEPH ,  SARMA BALU

IPC: C21C5/30 ,  C21C7/072 ,  B22D11/117 ,  C21C5/32 ,  C21C5/46 ,  C21C5/52 ,  C21C7/04 ,  C21C7/068

Abstract: A metal refining method particularly useful with a basic oxygen steelmaking process, wherein during an initial period, refining oxygen is provided into the furnace headspace surrounded by a shroud comprising oxygen and inert gas, and during a subsequent period refining oxygen is provided into the furnace headspace surrounded by a frame shroud.

公开(公告)号：NO321628B1

公开(公告)日：2006-06-12

申请号：NO20004344

申请日：2000-09-01

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： ANDERSON JOHN ERLING ,  MAHONEY WILLIAM JOHN ,  SARMA BALU

IPC: F15D1/08 ,  F23N5/00 ,  B05B1/34 ,  F23C5/14 ,  F23D14/22 ,  F23D14/32 ,  F23D14/84 ,  F27D7/02

Abstract: A method for changing the length of a coherent jet (20) by establishing a coherent jet using a flame envelope (23) generated using gaseous fuel and changing the flowrate of the gaseous fuel, preferably using inert gas for make up to maintain a constant total flowrate of fuel and inert gas.

公开(公告)号：DE60114317T2

公开(公告)日：2006-06-08

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

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

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：ES2246968T3

公开(公告)日：2006-03-01

申请号：ES01118541

申请日：2001-08-01

Applicant: PRAXAIR TECHNOLOGY INC

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

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

Abstract: Una lanza para proporcionar al menos un chorro coherente, que comprende: (A) un conducto principal que comunica con al menos una boquilla para proporcionar gas principal a partir de la lanza; (B) un primer conducto anular coaxial y espaciado radialmente con respecto al conducto principal para que fluya el fluido de refrigeración; (C) un segundo conducto anular coaxial y espaciado radialmente con respecto al primer conducto anular para que fluya el primer fluido envolvente de llama; (D) un tercer conducto anular coaxial y espaciado radialmente con respecto al segundo conducto anular para que fluya el segundo fluido envolvente de llama; (E) un cuarto conducto anular coaxial y espaciado radialmente con respecto al tercer conducto anular para que fluya el fluido de refrigeración; y (F) al menos un conducto de flujo para que fluya el fluido de refrigeración entre el primer conducto anular y el cuarto conducto anular; caracterizado porque dicho segundo y tercer conductos anulares se encuentran localizados entre dicho primer y cuarto conductos anulares.

公开(公告)号：DE69922441D1

公开(公告)日：2005-01-13

申请号：DE69922441

申请日：1999-06-16

Applicant: PRAXAIR TECHNOLOGY INC

Inventor： ANDERSON JOHN ERLING ,  MATHUR PRAVIN CHANDRA

IPC: F02K1/28 ,  B05B1/00 ,  C21C5/46 ,  F04F5/22 ,  F23D14/22 ,  F23D14/32 ,  F27D3/16 ,  C21C5/52 ,  F27B3/20 ,  F27B3/22

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.