Wet type fine particle high-efficiency cyclone removal device

Abstract

The invention provides a wet type fine particle high-efficiency cyclone removal device including a cyclone cylinder, a cyclone washing plate, an atomizer, a liquid film spray nozzle, a demister, a filter, a variable frequency water pump, a liquid collecting pool, a PM concentration measuring instrument and a control signal sensor; the lower end of a cylinder body of the cyclone cylinder is provided with the liquid collecting pool and a liquid discharging port, the upper part of the cylinder body is provided with a flue gas inlet in a tangential manner, and the upper end part of the cylinder body is provided with a flue gas outlet; the cyclone washing plate, the atomizer and the liquid film spray nozzle are successively fixedly arranged at the inner cavity of the cylinder body from bottom to top; the demister is arranged on the upper part of the inner cavity of the cylinder body and is located below the flue gas outlet; a water outlet of the water pump is connected with a water inlet of the liquid film spray nozzle and the atomizer through pipelines. With use of atomizing and dust settling, cyclone plate washing, and liquid film dust control and adsorption, the cyclone separation device can remove fine particles with high-efficiency, and is stable and reliable in running. After flue gas is purified, no fog and water entrained phenomenon exists, and a device material has the properties of corrosion resistance, wear resistance and high-temperature resistance and has long service life.

Description

technical field [0001] The invention belongs to the research field of dust removal environment protection, and in particular relates to a wet-type high-efficiency swirling device for removing fine particles. Background technique [0002] SO2 and inhalable particulate pollution produced by coal combustion are the main pollution of my country's atmospheric environment. At present, dust removal devices are installed before the wet desulfurization process, such as electric dust removal, mechanical dust removal, and bag dust removal. The removal efficiency of fine particles is very low and decreases significantly with the decrease of particle size. In addition, wet flue gas desulfurization and dust removal generally use water mist spraying or water curtain filtration, because the overlapping process of flue gas and water mist is short, the contact area is small, and the dust removal effect is affected. During the desulfurization process, due to the strong contact of gas and liq...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a solution for the above-mentioned existing wet flue gas desulfurization and dust removal process, the flue gas contains a large number of mist droplets, the removal of fine particles is difficult, the process is complicated, the swirl plate is fouled and blocked, and the required energy consumption is high. A wet-type high-efficiency cyclone removal device for fine particles, which realizes spray dust reduction, swirl plate washing, liquid film dust control and adsorption, so that the cyclone separation device can efficiently remove fine particles, and the operation is stable and reliable

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