Flue gas filtering device for boiler

Abstract

The invention discloses a flue gas filtering device for a boiler, and relates to the technical field of boiler flue gas treatment. The flue gas filtering device for the boiler comprises a device main body, a filtering channel is formed between the top and the bottom of the device main body in a penetrating mode, and a gas inlet connecting pipe communicated with the filtering channel is fixed to the bottom of the device main body. According to the flue gas filtering device for the boiler, an inclined driving plate enables a rotating sleeve to rotate at a certain speed under the action of rising high-speed flue gas in the filtering channel, and the rotation enables fan-shaped filter screens to rotate in the filtering channel, so that the rotating filtering effect of the fan-shaped filter screens is achieved; and even if dust particles in the flue gas are not uniformly distributed, the dust particles filtered by the whole fan-shaped filter screen group are also distributed in a uniform state, so that the whole fan-shaped filter screen group is comprehensively utilized, and the reduction of the filter efficiency and the increase of the cleaning frequency caused by non-uniform distribution of the dust particles on the whole fan-shaped filter screen group are prevented.

Description

technical field [0001] The invention relates to the technical field of boiler flue gas treatment, in particular to a flue gas filtering device for boilers. Background technique [0002] The boiler is a kind of energy conversion equipment. The energy input to the boiler includes chemical energy and electric energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of heat energy. Marine boilers refer to boilers that supply steam to steam-powered machinery that propels ships. [0003] The flue gas produced by the existing ship boiler needs to be purified by filtering and other purification operations. Since the ship sails in a certain direction on the water surface, the dust particles in the flue gas will be unevenly distributed under the action of inertia, so the filter net The filtered dust particles will also be unevenly distributed, which will not only reduce the filtering effect of the filter screen, but also i...

AI Technical Summary

Problems solved by technology

[0003] The flue gas produced by the existing ship boiler needs to be purified by filtering and other purification operations. Since the ship sails in a certain direction on the water surface, the dust particles in the flue gas will be unevenly distributed under the action of inertia, so the filter net The filtered dust particles will also be unevenly distributed, which will not only reduce the filtering effect of the filter screen, but also increase the frequency of disassembly and cleaning of the filter screen, which has certain defects.

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