Method of and apparatus for capturing coke oven charging emissions
AssigneeSun Coal Company
InventorCharles W. Pruitt
Life of this patent
Estimating the term…
Abstract
Individual coke ovens in a nonrecovery coke oven battery are charged through an open door at the pushing end of the ovens, and emissions escaping through the open door of the respective ovens during charging are captured by a hood mounted on the pushing and charging machine for movement therewith along the pushing side of the battery and for movement thereon from a retracted position spaced outwardly from the ovens and a capturing position above the open oven door. Air and emissions captured by the hood are withdrawn and passed through an air cleaner mounted on the pushing and charging machine to remove smoke and particulates before being discharged to the atmosphere.
Claims17
A method of converting coal to coke in a coking oven including an elongated horizontal coking chamber having its open ends normally closed by removable doors, including the steps of positioning a coal charging machine at one end of the oven, removing the door from the oven and supporting the door at a position spaced outwardly and upwardly from the open end of the oven,
- providing a movable closed topped emissions capturing hood on the charging machine and positioning the closed top above said door and above said open end of the oven and forming an effective seal between the open end of the oven and the hood,
- projecting a coal conveyor into the open end of the oven beneath the hood to deposit coal into the oven and to effectively form a bottom wall sealing the hood from the atmosphere,
- providing an air cleaner supported on the charging machine,
- providing a closed duct system connecting the interior of the hood with said air cleaner,
- withdrawing air and emissions from the hood through said duct system and air cleaner to remove solid pollutants therefrom, and
- discharging the cleaned air and gaseous emissions from the air cleaner to the atmosphere throughout charging of the oven.
In a coke oven charging machine including a car supported for movement along tracks extending in front of a battery of coke ovens constructed in side-by-side relation with each oven having an elongated coking chamber with open ends normally closed by removable doors, the charging machine having a door handler for removing and supporting an oven door above the open end of an oven during charging of the coking chamber and for replacing the door after charging, and a charging conveyor adapted to be projected into the coking chamber beneath a door supported by the door handler to charge the oven with coal to be coked, the improvement comprising,
- an emissions charging hood having a closed top and an open bottom,
- mounting means supporting said hood on said car for movement therewith with said open bottom positioned above said charging conveyor and for movement on said car from a retracted position spaced from an oven to an emissions capturing position adjacent the open end of an oven being charged,
- end wall means extending from said open bottom to a position adjacent said charging conveyor and cooperating with said closed top to provide communication between an oven and said hood when the oven door is removed,
- air cleaner means mounted on said car for movement therewith, said air cleaner means having an inlet and an outlet and filter means for removing solids from air and gaseous emissions flowing therethrough,
- duct means connecting said hood with said air cleaner means inlet, and
- exhaust blower means operably connected with said air cleaner means for withdrawing air and charging emissions from said hood through said duct means and said filter means and to discharge clean air and gases from the air cleaner means to the atmosphere during charging of an oven.
Dependencies are inferred from the claim text.