Cooling tower white mist coupling wet desulphurization white smoke treatment device and method

Abstract

The invention provides a cooling tower white mist coupling wet desulphurization white smoke treatment device and method. The device comprises a wet desulphurization tower, a ventilation cooling tower, a cooling tower white mist collection cover, an exhaust fan, a condenser, a superheater and a chimney, wherein a flue gas outlet of the wet desulphurization tower is sequentially connected with the condenser, the superheater and the chimney through a main discharge flue G1; the superheater is connected with a heat source; the cooling tower white mist collecting cover is arranged at the top of the ventilation cooling tower; a flue gas outlet of the cooling tower white mist collecting cover is connected into the main discharge flue G1, the exhaust fan is arranged on a white mist collecting pipeline G2 in a matched mode; a cooling water outlet of the condenser is connected with the top of the ventilation cooling tower; a cooling water inlet of the condenser is connected with a bottom pool of the ventilation cooling tower; and a condensate water outlet of the condenser is connected with the bottom pool of the ventilation cooling tower. According to the cooling tower white mist coupling wet desulphurization white smoke treatment device and method provided by the invention, white mist generated by the cooling tower can be effectively collected, and the white mist and white smoke generated by wet desulphurization are combined to be removed, so that synergistic, economical, efficient and thorough treatment is achieved.

Description

【Technical field】 [0001] The invention relates to the technical field of industrial flue gas colored plume treatment and multi-pollutant collaborative purification, in particular to a cooling tower white mist coupling wet desulfurization white smoke treatment device and method. 【Background technique】 [0002] At present, the wet desulfurization tower is widely used as a flue gas desulfurization device in many industries such as electric power, metallurgy, building materials, chemical industry, waste incineration, etc. The problem of white smoke generated by it has many mature technologies such as condensation, heating, condensation reheating, etc. The treatment route, and the treatment is relatively thorough; and the ventilation cooling tower, whether it is a mechanical ventilation type or a natural ventilation type, as a common circulating water cooling equipment in the above-mentioned industries, will also produce a certain amount of white mist, but there is currently not e...

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Problems solved by technology

In general, the existing cooling tower defogging technology is realized by adding a heat exchange device on the top of the cooling tower alone. No matter what the form is, it is only through the heat transfer of the white mist itself. In practice, it can only weaken the white mist but not It cannot be completely eliminated, especially in winter or rainy season, the actual effect of these methods is open to question; at the same time, the above-mentioned system needs to add heat exchange devices, transform cooling towers, add fans and other ancillary equipment, although the processing volume is not large, the investment cost and high operating cost

That is to say, in general, the economical efficiency of the mist-eliminating cooling tower is not high.

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