Fire grate, in particular for waste incinerators

Details Fire grate, in particular for waste incinerators Fire grate, in particular for waste incinerators

1997-02-18

1998-03-03

Yeung, James C.

Furnaces

Including means to feed solid fuel

Movable grate

110101R, 126174, 126175, F23H 708, F23H 714

Patent

active

057223343

ABSTRACT:
A fire grate has tensioning devices (3) inserted in recesses (2) of an oven wall (1), with each device acting upon one grate side plate. The tensioning device (3) includes a cylinder (4) inserted into the oven wall, a hollow piston (7) guided therein and a spring (26), which can be adjusted in its tension. The grate side plate has a carrying plate (12) directly fastened to the piston bottom (10) with a grate border plate (13) suspended, or hanging, on the carrying plate (12). The piston (7) has diameter and length dimensions such that it can support and guide the grate side plate without further guiding devices. Neighboring pistons (7) are connected flexibly to each other by guiding bars (36), so that the pistons (7) can influence each other reciprocally. An upper edge of the grate side plate, particularly the grate border plate (13), has a flange (17) extending toward the oven wall. The flange (17) sealingly engages an elastical seal (19), fastened onto the oven wall. An additional covering ledge (21) covers the flange (17) and includes a shaped part or angle (22) which bounds a hollow space (23) between these two parts, just like a labyrinth seal.

REFERENCES:
patent: 1565017 (1925-12-01), Lower
patent: 2356144 (1944-08-01), Beers
patent: 4328786 (1982-05-01), Owen
patent: 4418816 (1983-12-01), Kropp
patent: 5178128 (1993-01-01), Krieger
patent: 5205100 (1993-04-01), Lecointre
patent: 5377663 (1995-01-01), Cole et al.

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