The invention relates to the technical field of dust removal equipment, and provides a
biomass boiler dust removal device which comprises a filter bag dust remover and a
heat exchanger. The shell is provided with a heat exchange space, a
flue gas inlet and a
flue gas outlet, and the heat exchange space communicates with the outside through the
flue gas inlet and the
flue gas outlet; the disc-shaped heat exchange
pipe is arranged in the heat exchange space, a heat exchange medium passes through the disc-shaped heat exchange
pipe and exchanges heat with
flue gas in the heat exchange space, the two ends of the disc-shaped heat exchange
pipe are located outside the shell, and the disc-shaped heat exchange pipe is located on the same height plane of the heat exchange space; the sliding rod is arranged in the heat exchange space in a sliding mode, the sliding rod is close to or away from the disc-shaped heat exchange pipe after sliding, and the
vertical distance between the sliding rod and the disc-shaped heat exchange pipe is fixed. One end of the scraper is rotationally arranged on the sliding rod, the other end of the scraper is used for scraping particle residues on the disc-shaped heat exchange tube, and the rotating axis of the scraper and the axis of the sliding rod are collinear. According to the technical scheme, the problem that in the prior art,
smoke dust particles are attached to the surface of the
heat exchanger, and heat exchange efficiency is reduced is solved.