IP Library Granted Patent US 7,611,609
Granted Patent B1
US 7,611,609 · App. 09/846,829 · Granted Nov 3, 2009

Method for producing blast furnace coke through coal compaction in a non-recovery or heat recovery type oven

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Quick Facts
Patent No.
US 7,611,609
App. No.
09/846,829
Granted
Nov 3, 2009
Kind
B1
Abstract

A method for producing non-recovery/heat recovery coke may include the steps of providing a container, disposing a volume of loose coal into the container such that a vertical dimension of the volume of loose coal in the container is smaller than a horizontal dimension of the volume of loose coal, applying a force to the coal in the container to produce a volume of compacted coal having a substantially uniform density which is larger than that of the loose coal, disposing the compacted coal into a non-recovery/heat recovery type oven, and heating the compacted coal to produce coke. The method may also include the steps of providing a container, and moving the non-recovery/heat recovery coke mass from the oven at a substantially constant elevation to the container, quenching the coke mass in the container to produce a quenched coke mass, and removing the quenched coke mass from the container.

Claims (31)

1. A method of producing coke comprising the steps of:

disposing a volume of coal into a non-recovery type oven having an oven floor;

heating the volume of coal to produce a coke mass having an apparent specific gravity of about 1.05;

providing a container;

moving the coke mass from the oven at a substantially constant elevation to the container;

quenching the coke mass in the container to produce a quenched coke mass, wherein the step of quenching comprises the step of applying a volume of water to the coke mass in the container to produce a quenched coke mass; and

removing the quenched coke mass from the container.

2. A method of producing coke comprising the steps of:

disposing a volume of coal into a non-recovery type oven having an oven floor;

heating the volume of coal to produce a coke mass having an apparent specific gravity of about 1.05;

providing a container;

moving the coke mass from the oven at a substantially constant elevation to the container;

quenching the coke mass in the container to produce a quenched coke mass, wherein the step of quenching comprises the step of recovering the heat transferred to the volume of water by the coke mass; and

removing the quenched coke mass from the container.

3. A method of producing coke comprising the steps of:

disposing a volume of coal into a non-recovery type oven having an oven floor;

heating the volume of coal to produce a coke mass having an apparent specific gravity of about 1.05;

providing a container;

moving the coke mass from the oven at a substantially constant elevation to the container;

quenching the coke mass in the container to produce a quenched coke mass, wherein the step of quenching comprises the step of applying liquid nitrogen to the coke mass in the container to produce a quenched coke mass; and

removing the quenched coke mass from the container.

4. A method of producing coke comprising the steps of:

providing a first container;

disposing a volume of loose coal into the first container such that a vertical dimension of the volume of loose coal in the first container is smaller than a horizontal dimension of the volume of loose coal;

applying a force to the volume of loose coal in the first container to produce a volume of coal forming a single compact having a density which is greater than that of the loose coal disposed in the first container;

disposing the volume of the single compact of coal into a non-recovery type oven having an oven floor;

heating the volume of the compact of coal to produce a coke mass;

providing a second container;

moving the coke mass from the oven at a substantially constant elevation to the second container;

quenching the coke mass in the second container to produce a quenched coke mass; and

removing the quenched coke mass from the second container.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 23, 2009
From: ISG TECHNOLOGIES INC.
To: ARCELORMITTAL INVESTIGACION Y DESARROLLO, S. L.
Reel/Frame 023272/0733 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 13, 2006
From: ISPAT INLAND INC.
To: ISG TECHNOLOGIES INC.
Reel/Frame 017176/0823 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 1, 2001
From: VALIA, HARDARSHAN S.; AMBRY, WILLIAM J.
To: ISPAT INLAND, INC.
Reel/Frame 011777/0217 →