Claims
- 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.
- 2. Apparatus as in claim 1, wherein said discharge chute is provided with an upper brick-built portion having a stair configuration, so that calcinate drops onto calcinate, thereby lessening material abrasion wear on said chute, and so that said calcinate is fed to said indirect cooler at the water-cooled portion of said chute.
- 3. Apparatus as in claim 1, wherein the calcining kiln within the inlet zone and the calcining zone, is provided with a ridged lining extending over a length of about one third to two thirds of the length of the kiln.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2633789 |
Jul 1976 |
DEX |
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Parent Case Info
This is a division of application Ser. No. 817,115 filed July 18, 1977 issue May 19, 1979.
US Referenced Citations (7)
Divisions (1)
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Number |
Date |
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Parent |
817115 |
Jul 1977 |
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