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)< br ) Soot-type air pollution caused by coal burning in industrial boilers is one of the important environmental problems facing our country. The main atmospheric pollutants produced by coal burning are dust and sulfur dioxide. They not only threaten human health, but also seriously threaten the earth's resources and ecological environment. Therefore, it is imperative to control bituminous coal dust and sulfur dioxide pollution. Although the emissions of a single small and medium-sized industrial kiln boiler are limited, the overall number of small and medium-sized industrial boilers is large, accounting for about % of the country's bituminous coal boilers. It is reported that the dust and sulfur dioxide emissions from small and medium-sized industrial boilers account for more than 1% of my country's total emissions. Therefore, while using low-sulfur fuel briquettes to fix sulfur, developing and promoting simple smoke elimination, dust removal and desulfurization equipment suitable for my country's national conditions, especially for small and medium-sized industrial boilers, is of great significance to improving the human living environment. Simple flue gas desulfurization and dust removal technology is generally based on various types of dust removal equipment, using alkaline slurry such as lime slag water as absorbent, and applying water film dust removal, Venturi dust removal, cyclone dust removal, and cyclone tower sieve plate tower bubble tower spray The tower is combined with simultaneous dust removal and desulfurization. Flue gas desulfurization technologies such as impact cyclone dust removal, wet cyclone dust removal, desulfurization, granite water film dust removal, desulfurization, pulse power supply dust removal, multi-tube spray dust removal, desulfurization, spray bubble dust removal, desulfurization and other dust removal and desulfurization in the same equipment have been formed. The wet cyclone desulfurization dust collector is an integrated dust removal and desulfurization equipment with outstanding economical and practical effects.
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< is a high-efficiency desulfurization and dust removal device, which is a cyclone spray combined desulfurization and dust removal equipment. The flue gas enters the tower body tangentially from the upper part of the dust collector, and an alkaline absorption liquid spray device is installed at the flue gas inlet. Lead the boiler's continuous wastewater or alkaline absorption liquid to the water tank, and spray it into the flue gas inlet through a special nozzle in the water pump pipe. The high-speed rotating flow of the flue gas is used to accelerate the atomization of the spray water, which expands the contact area between the flue gas and the absorbing liquid. After the flue gas is wetted by water, it accelerates the aggregation of tiny dust particles, and the dust collides with the tower wall through the cyclone. Thus it can be captured and the purpose of dust removal can be achieved. At the same time, the sulfur dioxide and sulfur trioxide in the flue gas react with the alkaline substances in the spray liquid to generate sulfate, achieving the purpose of desulfurization. Since the removed dust contains moisture, the ash is in a semi-dry and semi-wet state. After being collected through the valve in the dust collection room, it is cleaned and discharged centrally.