Method for renovating a combined blast furnace and air/gas...

C - Chemistry – Metallurgy – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C21B 5/00 (2006.01) F25J 3/04 (2006.01)

Patent

CA 2557287

The invention relates to a method for renovating a combined system consisting of a blast furnace supplied with an oxidant fluid received at least partly from an air/gas separation unit (ASU). The inventive method consists in injecting, before renovation, at least 50 % of the flow rate of the blower feeding the blast furnace into an air/gas cryogenic separation unit in order to produce oxygen whose purity is greater than 90 % by volume of O2 which feeds the blast furnace, in controlling the blower airflow rate and the pressure of the air derived therefrom by means of a regulator which measures said flow rate and/or pressure at the input and/or output of a cleaning stage which is mounted upstream of the separation unit in such a way that the flow rate and pressure of the air derived from the blower is controlled. The fluid feeding the blast furnace consists of pure oxygen or diluted by air produced by the cryogenic separation unit.

La présente invention concerne un procédé de rénovation d'une installation combinée d'un haut-fourneau alimenté en fluide oxydant issu au moins partiellement d'une unité de séparation des gaz de l'air (ASU). Selon ce procédé, plus de 50 % du débit de la soufflante qui alimente le haut-fourneau avant rénovation est injecté dans une unité cryogénique de séparation des gaz de l'air afin de produire de l'oxygène de pureté supérieure à 90 % 02 vol qui alimente le haut-fourneau, le débit d'air de la soufflante et/ou la pression de l'air issu de la soufflante étant contrôlés par un régulateur qui mesure ce débit et/ou cette pression à l'entrée et/ou à la sortie de l'étage d'épuration d'air, placé en amont de l'unité de séparation, de manière à contrôler le débit ou la pression de l'air issu de la soufflante, le fluide d'alimentation du haut~fourneau étant constitué par l'oxygène pur ou dilué avec de l'air produit par l'unité cryogénique de séparation.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method for renovating a combined blast furnace and air/gas... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for renovating a combined blast furnace and air/gas..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for renovating a combined blast furnace and air/gas... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1632613

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.