Coupling treatment device applied to kiln tail white smoke and cooling tower white fog of cement plant and method thereof

Abstract

The invention discloses a coupling treatment device applied to kiln tail white smoke and cooling tower white fog of a cement plant and a method thereof. The device comprises a ventilation cooling tower, a white fog collecting cover, an exhaust fan, a cooling water condenser and a chimney, wherein a smoke outlet of the white fog collecting cover at the top of the ventilation cooling tower is connected into a first kiln tail smoke channel G11 through a white fog collecting pipeline G2; the white fog collecting pipeline G2 is equipped with the exhaust fan; a smoke inlet of the cooling water condenser is connected with the first kiln tail smoke channel G11; a smoke outlet of the cooling water condenser is connected with a second kiln tail smoke channel G12 of the chimney; the second kiln tail smoke channel G12 and a kiln head smoke channel G5 are respectively connected with two sides of the bottom of the chimney; kiln head smoke enters the chimney through the kiln head smoke channel G5; kiln tail smoke enters the water cooling condenser through the first kiln tail smoke channel G11, is cooled and then enters the chimney from the second kiln tail smoke channel G12. The coupling treatment device is capable of effectively collecting the white fog generated by the cooling tower, achieving combined removal of white smoke generated by the kiln tail smoke, and achieving cooperative, economical, efficient and complete treatment.

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 coupling treatment device and method suitable for cement factory kiln tail white smoke and cooling tower white mist. 【Background technique】 [0002] At present, the cement plant, as an industrial basic industry, has gradually entered the era of ultra-low emissions since the implementation of ultra-low emissions in coal-fired power stations and steel industries. focus on. The generation of white smoke from kiln tail flue gas is mainly due to the implementation of wet desulfurization, which has been treated with various mature technical treatment routes such as condensation, heating, and condensation reheating, and the treatment is relatively thorough; while mechanical ventilation cooling towers or natural The white mist produced by the ventilation cooling tower has not received enough attention...

AI Technical Summary

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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