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Method for firing a rotary kiln with pulverized solid fuel

Patent ·
OSTI ID:5754789
;
Disclosed is a method for firing a kiln as well as a method for producing cement clinker in which pulverized coal is initially entrained in an airflow of about 2% of the theoretical amount of air needed to combust the coal and transport it to a burner. Supplemental primary air heated sufficiently to vaporize volatiles in the coal is mixed with the coal flow in a burner, discharged into the kiln and hence ignited. Secondary combustion air heated to between 800 F to 1650 F and more is added in the kiln to effect the substantially complete combustion of the pulverized coal in the kiln.
Assignee:
Coen Co Inc
Patent Number(s):
US 4310299
OSTI ID:
5754789
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
AIR FLOW
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMMINUTION
DESIGN
ENERGY SOURCES
FLUID FLOW
FOSSIL FUELS
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
FUELS
GAS FLOW
HIGH TEMPERATURE
KILNS
MATERIALS
OXIDATION
THERMOCHEMICAL PROCESSES