Kerr-mcgee Coal Corporation

John A Campbell

Virgil J Barczak

Ronald K Pepper

Michael R McHann

John O Bodman

David J Foley

Kenneth E Krause

Tony G Gardner

Robert L Elder

Jerry L Hughes

Carl L Baldwin

A system for loading coal (particles) into railroad cars 16 wherein a control weight of a railroad car 16 loaded with coal (particles) is established and a maximum permissible weight of a railroad car 16 loaded with coal (particles) is known, the control weight being less than the maximum permissible weight, The system utilizes a continuous loading system 12 and a batch loading system 14. Coal (particles) first is loaded into each of the railroad cars 16 utilizing the continuous loading system 12 and the continuous loading system 12 is designed such that the continuous loading system 12 loads an amount of coal (particles) into each of the railroad cars 16 having a weight less than the predetermined control weight. After coal (particles) intially has been loaded into each of the railroad cars 16 by the continuous loading system 12, then coal (particles) is loaded into each of the railroad cars 16 utilizing the batch loading system 14 and the batch loading system 14 is operated to discharge an amount of coal (particles) into each of the railroad cars 16 equal to the difference between the control weight and the partially loaded weight of the railroad cars 16 after initially being filled utilizing the continuous loading system 12.

Loading system for railroad cars

The present invention contemplates a process for reducing the gaseous sulfur dioxide content of flue gases by either or both preheating coal prior to burning the preheated coal and controlling the combustion temperature level to control the amount of sulfur being converted to sulfates and remaining in the ash residue.

Process for reducing gaseous sulfur dioxide content of flue gases by

A method for loading particles, such as coal, into a plurality of railroad cars wherein a control weight of a railroad car loaded with particles is established. Each of the railroad cars is weighed prior to loading particles into the railroad car from a weigh bin to determine an unfilled weight of each railroad car and the unfilled weight of each railroad car is compared with the control weight to determine an unfilled differential weight for each railroad car. The particles are loaded into the weigh bin from a surge bin and the surge bin is weighed as the particles are being loaded into the weigh bin from the surge bin so the loading of particles into the weigh bin can be terminated when a weight of particles has been loaded into the weigh bin about equal to and less than the unfilled differential weight associated with the railroad car to be loaded with the unfilled differential weight of particles.

System for batch loading coal into railroad cars

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Oklahoma City, OK, United States of America

John A Campbell