Cooling means for a water-filled ash hopper

Patent · Tue Jul 22 04:00:00 EDT 1980

OSTI ID:5010924

Kochey, E

A description is given of a furnace in which coal is burned, outlet means in the bottom of the furnace through which ash is discharged, an ash hopper located beneath the outlet means, water inlet means for introducing water into the ash hopper, an overflow pipe connected to the ash hopper a predetermined height above the bottom of the ash hopper through which water is discharged therefrom, so as to maintain a predetermined level of water therein, temperature sensing means for detecting the temperature of the water in the ash hopper, control means in the water inlet means responsive to the temperature sensing means such that a predetermined temperature of the water in the ash hopper is maintained, first heat exchange means positioned in the ash hopper, second heat exchange means located outside of the ash hopper, the water inlet means being connected to the two heat exchange means such that the water first passes through the first heat exchange means to absorb heat from the ash hopper, and then gives up heat in passing through the second heat exchange means, prior to its discharge into the ash hopper.

• Assignee: Combustion Engineering Inc
• Patent Number(s): US 4213402
• OSTI ID: 5010924
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
ASHES
BOILERS
CONTAINERS
CONTROL
CONTROL EQUIPMENT
COOLING
DESIGN
EQUIPMENT
FLOW REGULATORS
FURNACES
HEAT EXCHANGERS
HOPPERS
HYDROGEN COMPOUNDS
MATERIALS HANDLING
OXYGEN COMPOUNDS
RESIDUES
TEMPERATURE CONTROL
WATER