The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2014
Filed:
Apr. 17, 2008
Gilberto Garza-rodriguez, Nuevo Leon, MX;
Andrea Tavano, Tavagnacco, IT;
Octavio Jorge Becerra-novoa, Monterrey, MX;
Gilberto Garza-Rodriguez, Nuevo Leon, MX;
Andrea Tavano, Tavagnacco, IT;
Octavio Jorge Becerra-Novoa, Monterrey, MX;
HYL Technologies, S.A. de C.V., San Nicolas de los Garza, Neuvo Leon, MX;
Danieli & C. Officine Meccaniche, S.p.A., Buttrio, IT;
Abstract
A steelmaking plant including a pressurized direct reduction reactor for continuous production of hot direct reduced iron with a batch-melting furnace and a standby cooler, all three being capable of being situated side-by-side, with such DRI being able to be alternatively fed to the furnace or to the cooler. The furnace is selectively charged through a diverter valve by a pneumatic transport system with the hot DRI being entrained in a carrier gas fed into a receiving bin (having an upper DRI/gas disengagement space and a lower DRI buffer portion). A pressurized charge of the DRI accumulated in such disengaging/buffer bin is periodically fed down into a dosing/depressurization bin which in turn depressurizes the DRI and feeds a batch of DRI down into the furnace. Upon sensing that the buffer portion is full, the DRI is then pneumatically diverted to the cooler, such as during furnace maintenance shut down.