Heat recovery oven foundation

Patent metadata

Field	Value
Publication number	US-11261381-B2
Application number	US-201916729212-A
Country	US
Kind code	B2
Filing date	Dec 27, 2019
Priority date	Dec 28, 2018
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

A coke oven includes an oven chamber configured to support and heat a coal bed, a castable slab below the oven chamber, and a foundation supporting the heat recovery oven. One or more beams are positioned between the castable slab and the foundation. The beams extend from a first end of the oven chamber to a second end of the oven chamber, forming a plurality of air gaps between the castable slab and the foundation. Heat from the oven chamber is dissipated by the one or more beams.

First claim

We claim:

1. A coke oven, comprising:
an oven chamber configured to support and heat a coal bed, the oven chamber having a first end and a second end;
a castable slab below the oven chamber;
a foundation supporting the oven chamber;
one or more beams between the castable slab and the foundation, the one or more beams extending from the first end to the second end of the oven chamber and forming a plurality of air gas between the castable slab and the foundation;
a forced cooling system configured to i) dissipate heat from the air gaps between the one or more beams and ii) force a fluid through at least one of the air gaps; and
a controller operably coupled to the forced cooling system and configured to regulate an amount of the fluid forced through the at least one of the air gaps.

2. The coke oven of claim 1 , wherein the forced cooling system comprises a fan, the fan configured to push air into the at least one of the plurality of air gaps to drive the air through the air gap.

3. The coke oven of claim 1 , wherein the forced cooling system comprises a vacuum configured to pull air through the at least one of the plurality of air gaps.

4. The coke oven of claim 1 , wherein the forced cooling system comprises a pump configured to pump a liquid through the at least one of the plurality of air gaps.

5. The coke oven of claim 1 , wherein the forced cooling system comprises a nozzle positioned at an opening of the at least one of the plurality of air gaps to push a compressed gas through the air gap.

6. The coke oven of claim 1 , further comprising:
a sensor positioned in the at least one of the plurality of air gaps and configured to measure a property of a beam,
wherein the controller is configured to receive the property of the beam.

7. The coke oven of claim 6 , wherein the sensor comprises a temperature sensor and wherein the property of the beam is a temperature of the beam.

8. The coke oven of claim 1 , wherein the forced cooling system is activated or responsive to a determination that a temperature of a limiting material in the heat recovery oven exceeds a temperature limit for the limiting material while the coal bed is heated in the oven chamber.

9. The coke oven of claim 1 , further comprising an insulator at least partially encapsulating the castable slab.

10. The coke oven of claim 1 , wherein the one or more beams comprise I-beams.

11. The coke oven of claim 1 , wherein the one or more beams comprise steel beams.

12. The coke oven of claim 1 , wherein the one or more beams comprise beams having a height between approximately six inches and approximately twelve inches.

13. The coke oven of claim 1 , wherein the one or more beams comprise a first set of beams and a second set of beams, the first set of beams forming a first layer of air gaps below the castable slab and the second set of beams forming a second layer of air gaps between the first set of beams and the foundation.

14. The coke oven of claim 13 , wherein the first set of beams comprise metal beams, and wherein the second set of beams comprise brick.

15. The coke oven of claim 14 , wherein the forced cooling system is configured to force the fluid through an air gap of the first layer of air gaps.

16. The coke oven of claim 1 , wherein the plurality of air gaps are open at a first end of the oven chamber and a second end of the oven chamber opposite the first end.

17. A coke oven, comprising:
an oven body configured to heat a coal bed;
a foundation supporting the oven body;
a plurality of beams positioned between the oven body and the foundation and thermally isolating the oven body from the foundation;
a forced cooling system positioned adjacent the beams and configured to i) dissipate heat from an area between adjacent ones of the beams and ii) force a fluid through the area; and
a controller operably coupled to the forced cooling system and configured to regulate an amount of the fluid forced through the area.

18. A coke oven, comprising:
an oven chamber configured to support a coal bed and having a length;
a castable slab below the oven chamber;
a foundation supporting the oven chamber;
a first beam between the castable slab and the foundation and extending along the length of the oven chamber;
a second beam between the castable slab and the foundation and extending along the length of the oven chamber, wherein the second beam is spaced apart from the first beam, and wherein the first beam, the second beam, the castable slab, and the foundation at least partially define an air gap;
a forced cooling system configured to dissipate heat from the air gap by directing fluid toward the air gap; and
a controller operably coupled to the forced cooling system and configured to regulate an amount of the fluid directed toward the air gap.

19. The coke oven of claim 18 , wherein the forced cooling system comprises (i) a fan configured to compress the fluid, (ii) a pipe fluidically coupled to the fan and configured to receive the compressed fluid, and (iii) a valve fluidically coupled to the fan via the pipe and configured to regulate flow of the compressed fluid.

20. The coke oven of claim 19 , wherein:
the first beam is parallel to the second beam,
the first beam and the second beam each comprises a first end portion and a second end portion opposite the first end portion, and
the valve is positioned at the first end portions of the first beam and the second beam laterally between the first beam and the second beam.

Assignees

• Suncoke Tech & Development Llc

Inventors

• Quanci John Francis
• Choi Chun Wai
• Ball Mark Anthony
• Crum Jason
• Kaplarevic Milos J

Classifications

• C10B29/08

  Bracing or foundation of the ovens · CPC title

• C10B41/00

  Safety devices, e.g. signalling or controlling devices for use in the discharge of coke · CPC title

• C10B15/02 Primary

  with floor heating · CPC title

• C10B21/20

  Methods of heating ovens of the chamber oven type · CPC title

• Y02P20/129

  Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines · CPC title