Nonrecovery coke oven door
AssigneeSun Coal Company
InventorJerry C. Daniels
Life of this patent
Estimating the term…
Abstract
A coke oven door for closing the open end of an elongated coking chamber of a nonrecovery coke oven, including process air vents extending through the door at a level above a coal charge to be coked, has a structural frame on its outer surface including an elongated manifold extending across the door adjacent its bottom with a plurality of inlet openings in the manifold, and a tubular duct system connecting the manifold to the process air inlets whereby reduced pressure in the oven will draw air through the process air inlets and the duct system to thereby draw emissions from the area at the base of the door into the oven for incineration.
Claims16
An improved coke oven door for use in a nonrecovery coke oven having an elongated coking chamber for receiving a charge of coal to be coked therein and a door opening at each end closed by a removable oven door, said oven door comprising,
- a generally flat metal door plate having inner and outer surfaces and a bottom edge, the door plate being dimensioned to extend over and cover a door opening at one end of the coking chamber with said bottom edge extending adjacent the bottom of the door opening,
- a refractory block mounted on the inner surface of the door plate, the refractory block being dimensioned to project into and closely fit within the door opening,
- an elongated emissions collecting manifold mounted adjacent to said bottom edge of said door plate at its outer surface and extending across substantially the full width thereof,
- said collecting manifold having a downwardly directed surface and a plurality of emissions inlet openings in said downwardly directed surface, and
- elongated conduit means having one end in fluid communication with said collecting manifold and its other end in fluid communication with the interior of the coking chamber through said door plate and said refractory block whereby vacuum within the coking chamber during operation of the oven will apply a draft to said collecting manifold to draw emissions into said collecting manifold through said plurality of openings and from said collecting manifold through said conduit means into the oven chamber.
A method of controlling emissions escaping beneath the oven door of a nonrecovery coke oven at the beginning of a coking cycle comprising
- providing an elongated emissions collecting manifold adjacent to the bottom of the door and extending substantially across the full width of the door, said manifold being in the form of an elongated tubular member having emissions inlet opening means along its length,
- applying a draft to the manifold by connecting the interior of the manifold to the sub-atmospheric pressure existing in the nonrecovery coke chamber through an elongated conduit system having one end connected in fluid communication with the manifold and its other end in fluid communication with the interior of the coke oven, and
- providing a draft regulating valve in the elongated conduit system, whereby emissions escaping beneath the door are drawn into the manifold and through the conduit system into the oven by the existing sub-atmospheric pressure within the oven.
Dependencies are inferred from the claim text.