FIELD: heating systems.
SUBSTANCE: invention refers to heat engineering and can be used in power boilers operating on polydisperse solid fuels. The mentioned effect is provided by the fact that division furnace water walls are gastight and have lower gas openings made of screen tubes adjacent to lower enclosure and comprising an air cap grid; air nozzles are installed on external walls in lower part of fuel ignition compartments and directed upwards; polydisperse fuel supply devices and lighting-up burners are arranged on external walls of fuel ignition compartment not lower than axes of bent openings of wall tubes for air nozzles.
EFFECT: providing reliable and economic firing of polydisperse fuel and simplifying furnace design.
8 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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SU1763801A1 |
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| SOLID FUEL COMBUSTION PLANT | 2000 |
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| PULVERIZED-FUEL FURNACE | 1991 |
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| FURNACE | 1993 |
|
RU2095683C1 |
