THE LARGE PARTICLE ASH CAPTURE SYSTEM FOR COAL-FIRED POWER PLANT BOILER

摘要

PURPOSE: A system for collecting large particle ash from a coal-fired power plant boiler is provided to prevent a catalyst in denitrification equipment from being blocked and to prevent power plant from pausing by efficiently collecting the large particle ash from the coal-fired power plant boiler. CONSTITUTION: A system for collecting large particle ash from a coal-fired power plant boiler comprises a deflector(210), a large particle ash collecting unit(220), and a rapping device(230). The deflector converts the flow direction of combustion gas transferring from the rear part of the heating surface of the coal-fired power plant boiler to an economizer fly ash hopper(200) and a denitrification equipment catalyst. The large particle ash collecting unit collects the large particle ash using a plurality of penetration holes having a predetermined diameter. The large particle ash collecting unit comprises a plurality of perforated plates, a plurality of perforated plate supports, and a perforated plate support link. The rapping device generates vibration to the large particle ash collecting unit and removes materials adhered to the perforated plates.