U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method for controlling heat input into a coke oven

Patent 4692216 Issued on September 8, 1987. Estimated Expiration Date: Icon_subject September 8, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2510158

3085582

3501380

3556947

3607660

Control system for preventing an excessive temperature rise in a battery of coke ovens
Patent #: 4003803
Issued on: 01/18/1977
Inventor: Schmidt-Balve

Automatic coke oven plant with means to insure sufficient coking
Patent #: 4021309
Issued on: 05/03/1977
Inventor: Radstake ,   et al.

Method for controlling combustion in coke oven battery
Patent #: 4045292
Issued on: 08/30/1977
Inventor: Matsushita ,   et al.

Method of operating coke ovens
Patent #: 4064017
Issued on: 12/20/1977
Inventor: Beck ,   et al.

Method of operating an oil shale kiln Patent #: 4090945
Issued on: 05/23/1978
Inventor: Reeves

Inventors

Assignee

Application

No. 06/544925 filed on 10/24/1983

US Classes:

201/1, WITH MEASURING, TESTING OR INSPECTING202/151, Combustion control devices700/300For heating or cooling

Examiners

Primary: Miles, Tim R.

Attorney, Agent or Firm

International Class

C10B 47/00 (20060101)

Abstract

Method of controlling heat input into a coke oven to obtain a desired temperature of the coke mass of the oven at the time of pushing comprising (1) determine the moisture content and heat of carbonization of a sample of coal scheduled for transfer into the oven; (2) determine a coal mass, a target coking time, and an efficiency for said oven; (3) calculate the heat requirement and temperature of the coke mass during the coking operation of the coke oven based upon the coal moisture, the heat of carbonization, the coal mass, the target coking time, and the efficiency; (4) determine the temperature of the coke mass during the coking operation; (5) compare the temperature determined from step (4) with the calculated temperature based upon the calculation of step (3); (6) analyze any deviations noted in step (5) to obtain a more accurate heat requirement for said oven, and (7) vary the heat input into said oven in accordance with the more accurate heat requirement.This method preferably also includes the following additional steps: (1) compare a target temperature of the coke mass with the calculated temperature; (2) analyze the deviations of the target temperature from the calculated temperature, and (3) vary the heat input in response to the deviations.

Other References

  • "Computerized Investigation of Temperature Distributions in Coke-Oven Chambers" by Butorin and Matveeva, 1975
  • "Evaluation of Improved Silica Ovens at Emil Plant of Bergbau-Forschung GMBH" by Rohde, Stalherm and Beck, Ironmaking Proceeding vol. 34 (Toronto) 1975, pp. 177-192
  • "Heat Measurement of Coking Coals" by Perch and Bridgewater, Iron and Steel Engineer, Jul., 1980, pp. 47-50
  • "Armco's Newest Research Lab: Coal is the Name of the Game", 33 Metal Producing, Jul., 1980, pp. 56-58
  • "Dofasco Fine Tunes its Cokemaking Act with Feed Forward Combustion Control", 33 Metal Producing, Jul., 1980, pp. 64-65
  • "Fast-Reading Calorimeter Improves Combustion, Saves Energy", Iron and Steel Engineer, Feb., 1981
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