SETTLING-TYPE ASH COLLECTOR Russian patent published in 2009 - IPC F23J3/04 

FIELD: heating systems.

SUBSTANCE: device refers to power engineering and can be used on boilers firing wood wastes. Ash collector contains at least one vortex ash concentrator with axially symmetrical annular channel, vane swirler built in it, once-through gas-ash flow inlet connection pipe, once-through outlet opening of cleaned gas flow, side ash-saturated flow outlet opening, vertical prismatic four-sided settling chamber having a front wall with at least one ash-saturated flow inlet opening, rear wall with cleaned gas outlet opening, side walls, roofing, bottom with ash outlet opening, internal cavity with built-in assembly consisting of vertical ash-settling plates, as well as flat vertical slot connection pipe of ash-saturated flow, which connects ash concentrator side outlet opening and ash-saturated flow inlet opening of front wall of ash-settling chamber. Peculiar feature of the device is that additional vane swirler is installed in the centre of side outlet opening of ash concentrator, once-through outlet opening of cleaned gas is made in the form of diaphragm, vertical flat slot connection pipe of ash-saturated flow is made in the form of one-sided diffuser opened in the direction of settling chamber bottom, assembly of ash-settling plates is made in internal cavity of settling chamber in the form of at least one vertical trap with rear, side and front walls, which has its own longitudinal and vertical opening on the front wall, which is common for supplying ash-saturated gas and discharging cleaned gas, and bottom ash discharging opening.

EFFECT: invention allows increasing efficiency of ash collection from combustion products before stacks of boilers firing wood wastes.

4 dwg