The invention discloses a control apparatus for a single gas collecting
pipe of a
coke oven. The control apparatus comprises a riser, wherein the side wall of the riser is provided with a main
pipe communicating with the riser; the orifice of the main
pipe is connected with a single gas collecting pipe; the bending part of the main pipe is connected with an
ammonia spraying pipe; the orifice, connected with the single gas collecting pipe, of the main pipe is internally provided with a control mechanism; the orifice, located in the main pipe, of the
ammonia spraying pipe is fixedly provided with an
ammonia spraying device; and the orifice, located out of the main pipe, of the ammonia spraying pipe is connected with a low-ammonia pipe and a high-ammonia pipe through a T-
branch pipe. According to the control apparatus for the single gas collecting pipe of the
coke oven, inflation of a baffle hole and a filtering hole increases the pressures thereof, so a baffle rod and the filtering rod move outward, and after the completion of outward movement of baffle plates, and the baffle plates just contact with the inner wall of the single gas collecting pipe; so the single gas collecting pipeis blocked, and
smoke from burning
coal cannot move. A filter net is continuously shaken so as to shake off
coal ash adsorbed on the filter net into the filtering hole, and then the
coal ash is discharged by a coal ash discharging pipe, so the coal ash is prevented from accumulating in a pipeline, thereby avoiding blockage caused by the accumulation of the coal ash.