APPARATUS FOR LONGITUDINAL SEALING OF AIR CHAMBERS IN DEVICES WITH MOVING FIRE GRATES Russian patent published in 2021 - IPC F27B21/06 F27B21/08 F27D3/12 F27D99/00 

FIELD: sealing.

SUBSTANCE: invention relates to an apparatus and method for heat treatment of flowing material. The apparatus is comprised of a movable fire grate chain configured to move along a closed curve in the direction of movement and comprised of an endless movable fire grate (1) with movable links. The movable chain has burning carts (3) consisting of a frame (30) with end elements (33), wherein bearing rollers (31) are fixed onto said elements, and of grate bars (35) located on the crossbars (32). Air chambers (41, 43) are located so that gas from at least one air chamber (41, 43) flows through the burning carts (3) and the grates thereof (35) from the air chambers or into the air chambers (41, 43). At least one sealing plate (60) is mounted on each burning crate (3) parallel to the direction of movement and flush with the burning crate (3), wherein at least one sealing insert (50) is located in at least one section of the movable fire grate (1) parallel to the direction of movement. The sealing insert (50) is filled with a liquid medium and the sealing insert (50) is positioned so that the sealing plate (60) is immersed in the liquid (L). The sealing plate (60) is immersed in the liquid in the sealing insert (50) in the inlet zone (51) and leaves it in the outlet zone (51), wherein the inlet and outlet zones (51) are equipped with sealing sheets (52₁, 52₂, 52₃) configured to be pressed to the sealing plate (60) by coils (53).

EFFECT: invention allows to improve sealing for a long period of time.

13 cl, 4 dwg