IP Library Granted Patent US 9,828,646
Granted Patent B2
US 9,828,646 · App. 14/659,238 · Granted Nov 28, 2017

Metal making lance with spring-loaded thermocouple or camera in lance tip

Inventor: Derek S. Dengel (Harmony, PA)
Assignee: Berry Metal Company
C21C5/30C21C5/4606C21C7/00F27D3/16F27D21/0014F27D21/02C21C2005/4626F27D2003/169F27D2019/0006F27D2021/026
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Quick Facts
Patent No.
US 9,828,646
App. No.
14/659,238
Granted
Nov 28, 2017
Kind
B2
Abstract

An oxygen blowing lance comprising: a lance body including an oxygen conduit and cooling water inlet and outlet conduits surrounding said oxygen conduit; a lance head connected to said lance body and comprising a nozzle body, said nozzle body including a central strut having bore hole, a plurality of nozzles arranged about said central strut, and a plurality of cooling chambers arranged about said central strut, wherein said plurality of nozzles are in fluid communication with said oxygen conduit for discharging oxygen from said oxygen conduit onto a metal bath in a converter vessel, and wherein said plurality of cooling chambers are in fluid communication with said cooling water inlet and outlet conduits; a temperature probe or camera assembly received in said bore hole for monitoring the temperature of said lance head or molten heat in which the lance is inserted; signal lines connected to said temperature probe for conveying signals from said temperature probe whereby operation of said blowing lance is regulated in response to said signals; and a protective pipe pressurized with a gas disposed in the bore and surrounding said temperature probe assembly and the signal lines.

Claims (11)

1. An oxygen blowing lance comprising:

a lance body including an oxygen conduit and cooling water inlet and outlet conduits surrounding said oxygen conduit;

a lance head connected to said lance body and comprising a nozzle body, said nozzle body including a central strut having a bore hole, a plurality of nozzles arranged about said central strut, and a plurality of cooling chambers arranged about said central strut, wherein said plurality of nozzles are in fluid communication with said oxygen conduit for discharging oxygen from said oxygen conduit onto a metal bath in a converter vessel, and wherein said plurality of cooling chambers are in fluid communication with said cooling water inlet and outlet conduits;

a camera assembly received in said bore hole for gathering/taking photos, videos and/or other optical based measurements or information from inside the furnace or molten heat in which the lance is inserted;

signal lines connected to said camera assembly for conveying signals from said camera assembly whereby operation of said blowing lance is regulated in response to said signals; and

a protective pipe pressurized with a gas surrounding said camera assembly and the signal lines.

2. The oxygen blowing lance of claim 1 wherein said protective pipe is disposed within said oxygen conduit or one of said cooling water conduits.

3. The oxygen blowing lance of claim 1 wherein said bore hole has a floor and wherein said oxygen blowing lance further comprises means for forcing said camera assembly toward said bore hole floor.

4. The oxygen blowing lance of claim 3 wherein said means for forcing comprise resilient means.

5. The oxygen blowing lance of claim 4 wherein said resilient means is a spring.

6. The oxygen blowing lance of claim 1 further comprising braided wire leads on the camera assembly.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 25, 2015
From: DENGEL, DEREK S.
To: BERRY METAL COMPANY
Reel/Frame 035908/0609 →
Continuity (2)
Provisional Application 61952997 · Mar 14, 2014
Related Publication 20150259761A1 · Sep 17, 2015