Apparatus for producing petroleum coke calcinate

Claim 1

Apparatus for calcining petroleum coke comprising in combination an indirectly heated rotating green coke dryer having its discharge end connected to the intake chute of a calcining rotary kiln with a one-way valve permitting gas to flow from said dryer to said intake chute and this intake end of the kiln also being connected to a dust depositing chamber and a lean gas discharge line; an electro-filter connected to said dryer with further means connected to a dust collecting receptacle; a vapor conduit lead with blower from said dryer to a steam boiler; a valve regulator between said kiln and said boiler; means for supplying heating gas, primary air and secondary air to said kiln; said dust depositing chamber connected by means of a dust transporting means to a dust collecting receptacle; a secondary air inlet means for said kiln located on the product discharge end over a burner means; a partly water-cooled brick-lined discharge chute connected to said kiln conveying material from said kiln into an indirectly cooled rotating cooler; an exhaust gas line from said cooler connected to an air-operated injector leading back to the burner in said kiln; means for conducting heated cooling water from said cooler to an air cooler and recirculating the same water into the indirect cooler; connecting said boiler by conduit connection with said indirect dryer and by a further conduit to said electro-filter from which a gas exhaust line connects to a smokestack.