The invention discloses a suction type
conveyor belt surface cleaning device and method. A dust collection cavity is formed below an unloading roller of a
belt conveyor, a dust collection notch in the width direction of a belt is formed in the top face of the dust collection cavity, a gap is reserved between the dust collection notch and the bottom face of the belt, the dust collection cavity is communicated with a dust collection fan, the
lower face of the dust collection cavity is connected with a
pollution collection container with the certain
water storage volume, the
pollution collection container is in a circular truncated cone shape, the
diameter of a lower port of the container is larger than the
diameter of an upper port of the container, a
pollution discharge baffle is hinged to the lower port of the pollution collection container, and the pollution
discharge baffle is tightly pulled or tightened to the lower port of the pollution
discharge container by a tension spring or a torsional spring. According to the suction type
conveyor belt surface cleaning device and method, the belt surface is thoroughly cleaned on the basis of the dust collection principle, removed
coal slime is easy to concentrate, and no pollution is produced for the
working environment; the device makes no contact with the belt, so that the belt is not abraded; the structure is simple, maintenance is convenient, management is easy, the labor intensity of cleaning of workers is lowered, and the purpose of safe and efficient cleaning is achieved.