Slide arrangement

A slide arrangement for blocking or closing off a channel (16) adapted to be disposed between a coal pulverizer and coal dust burners, wherein the channel (16) is adapted to guide or convey a gas having a high proportion of coal dust (1), comprising:

• a housing (1) disposed in a wall of the channel (16);
• a shroud (2) or steel structure laterally connected to said housing (1);
• a slide plate(3), wherein a passage (1b) is provided in a wall (1a) of said housing (1) that faces said shroud (2) or steel structure, wherein said passage (1b) is adapted to receive said slide plate (3);
• and
• a closure member (4), wherein said passage (1b) is closable by means of said closure member (4) with the exception of a narrow gap (4c), wherein said closure member (4) is provided with a circumferential seal (4a) that is adapted to rest against a side of said wall (1a) of said housing (1) that is remote from the channel (16), and wherein said closure member (4) is provided with a wear plate (4b) that in a closed state of said closure member (4) is flush with a side of said wall (1a) of said housing (1) that faces the channel (16) to form a smooth passageway at that location, wherein an elongated, self-supporting knee lever linkage (5d, 5d) is provided, wherein said knee lever linkage is adapted to act upon said closure member (4) via externally disposed closure elements, and wherein said closure member (4) is held in said closed state by said closure elements, in which state it is adapted to remain by automatic holding.