Heating boiler for the combustion of baled straw

Patent · Tue Sep 28 04:00:00 EDT 1982

OSTI ID:6945613

Viessmann, H

A heating boiler for substantially continuous controlled combustion of baled straw. The boiler includes a straw feed channel communicating with a combustion chamber having a combustion zone adjacent the rear wall of the combustion chamber, a flue gas heat exchange chamber above the combustion chamber in communication with a flue gas vent and an ash collecting pit below the combustion chamber. A horizontal floor is disposed between the combustion chamber and the ash collecting pit, the floor having a slot adjacent the rear wall of the combustion chamber for passage of ash from the combustion zone into the ash collecting pit and for intake of primary air into the combustion zone. A vertically rotatable ash stripper assembly extends from the rear wall of the combustion chamber, and serves to strip ash from the straw bale surface being combusted in the combustion zone. The ash stripper assembly can be rotated by means of a hollow shaft which also constitutes a secondary air intake. The boiler provides for substantially continuous combustion of the baled straw in a controlled fashion by restricting combustion to the area of the combustion zone adjacent the rear wall of the combustion chamber.

• Assignee: EDB-83-018097
• Patent Number(s): US 4351248
• OSTI ID: 6945613
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR FLOW
ASHES
BOILERS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CHAMBERS
COMPACTING
DESIGN
EQUIPMENT
FLUE GAS
FLUID FLOW
GAS FLOW
GASEOUS WASTES
HEAT EXCHANGERS
INERTIAL SEPARATORS
MACHINE PARTS
MOTION
OXIDATION
POLLUTION CONTROL EQUIPMENT
RESIDUES
ROTATION
SEPARATION EQUIPMENT
SHAFTS
STRAW
THERMOCHEMICAL PROCESSES
WASTES