REVERSE-JET SWIRL PULVERIZED COAL BURNER WITH MULTI-STAGE RECIRCULATIONS
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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N/A
Issued Date -
Jan 6, 2022
app pub date -
Sep 18, 2021
filing date -
Sep 18, 2021
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A reverse-jet swirl pulverized coal burner with multi-stage recirculations includes a pre-combustion housing, a primary coal-air structure, a rich-lean output structure, an inner secondary air structure, and an outer secondary air structure. The pre-combustion housing has a pre-combustion chamber and a housing outlet. The primary coal-air structure is configured to separate a primary coal-air flow into a fuel-rich coal-air flow and a fuel-lean coal-air flow. The rich-lean output structure is configured to output the fuel-lean coal-air flow and block the fuel-rich coal-air flow to make the fuel-rich coal-air flow reversely flow to the pre-combustion chamber. The inner secondary air structure is configured to introduce an inner secondary air into the pre-combustion chamber, thereby forming a first-stage recirculation zone in the pre-combustion chamber and forming a second-stage recirculation zone. The outer secondary air structure is configured to form a third-stage recirculation zone at the housing outlet.
First Claim
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