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Efficient smoke white eliminating method and device

A flue gas and whitening technology, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve the problems of high site layout requirements, increased power consumption of circulating pumps, and excessive flue gas temperature, reducing investment and improving The effect of safe and stable operation reliability and power consumption reduction

Pending Publication Date: 2019-07-30
HUADIAN ELECTRIC POWER SCI INST CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

This technology has high requirements for site layout, and after the transformation is completed, the slurry circulation pump corresponding to the heat exchanger needs to run for a long time, which will increase the power consumption of this circulation pump. If the failure stops, there will be a risk of flue gas temperature exceeding the standard

Method used

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  • Efficient smoke white eliminating method and device

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Embodiment Construction

[0014] The present invention will be further described in detail below with reference to the drawings and embodiments. The following embodiments are for explaining the present invention and the present invention is not limited to the following embodiments.

[0015] Examples.

[0016] See figure 1 In this embodiment, the high-efficiency flue gas whitening method is as follows: the condensing heat exchanger 8 is arranged in the slurry tank of the desulfurization system of the coal-fired power plant, the temperature of the slurry in the slurry tank of the desulfurization system is reduced through the partition wall heat exchange, and then the desulphurization slurry spray The circulation of the shower system reduces the temperature of the flue gas at the outlet of the desulfurization tower and achieves the effect of net flue gas condensation, dehumidification and whitening.

[0017] The flue gas whitening system includes a slurry cooling system, a cooling water circulation system, a co...

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Abstract

The invention relates to an efficient smoke white eliminating method and device, and belongs to the field of industrial waste gas processing environment protection and energy. A condensing heat exchanger is arranged in a gas desulfurization system slurry pool, the slurry temperature in the gas desulfurization system slurry pool is lowered through dividing wall type heat exchange, the smoke temperature at the outlet of a desulfurization tower is lowered through the spraying and circulating of a slurry circulating pump, and the smoke condensing, dehumidifying and white eliminating effect is realized. A metal material with the grade of 2205 or above is adopted in the method, coiled pipe type distribution is adopted for the heat exchanger, the system reliability is enhanced, operating cost isreduced, the condensing temperature of the slurry is ensured, and the desulfurization outlet smoke condensing effect is ensured.

Description

Technical field [0001] The invention belongs to the field of industrial waste gas treatment, environmental protection and energy, and particularly relates to a method and device for high-efficiency smoke whitening. Background technique [0002] With the stricter national environmental protection policies, some regions have put forward requirements for deep emission reduction of flue gas and whitening of coal-fired power plants. According to local environmental protection policies and acceptance standards, the flue gas temperature at the inlet of the chimney of a coal-fired power plant needs to be controlled at about 45°C. The flue gas temperature of coal-fired power plant flue gas after wet desulfurization is generally between 49 ℃ and 55 ℃, and the flue gas after desulfurization needs to be further condensed and dehumidified before entering the chimney to be discharged into the atmosphere. [0003] The existing technology includes two kinds of condensation outside the tower and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/48B01D53/80B01D53/96
CPCB01D53/48B01D53/80B01D53/96B01D2258/0283
Inventor 王丰吉刘强李壮梁秀进朱跃
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD
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