Patent ID: 6187148
Filing Date: 2001-02-13
Classification: C10B,Y10T

Abstract:
A valve disposed in a downcomer connecting an interior cavity of a non-recovery coke oven with sole flues below the interior cavity comprising:a housing with a plurality of openings;at least one first opening in said housing communicating with said interior cavity of a non-recovery coke oven;at least one second opening in said housing communicating with said first opening and said downcomer;at least one third opening in said housing for accepting a valve plug; andsaid hollow valve plug having a first end and a second end and an orifice extending there between, said hollow valve plug disposed in said at least one third opening and the first end extending into an intersecting area between said at least one first opening and said at least one second opening whereby moving said valve plug increases or decreases an intersecting volume thereby connecting or disconnecting said interior cavity and said downcomer to control and regulate the gas pressure in the interior cavity of said non-recovery coke oven, and whereby secondary combustion air can be drawn through the orifice to the sole flues wherein said valve plug is cylindrical and has the first end which is beveled and said first end is associated with said intersecting area of said at least one first opening and said at least one second opening and said valve plug has the second end for accepting a means for rotating said valve plug, whereby said valve plug can be rotated thereby increasing or decreasing an intersecting volume thus controlling the pressure drop across said downcomer.