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Flue gas purification system device and application thereof

A system device and flue gas purification technology, applied in separation devices, combined devices, gas treatment, etc., can solve the problems of unstable system operation, low pollutant removal rate, large floor space, etc., and achieve gas-liquid mass transfer. High efficiency, small equipment footprint, and reduced operating costs

Active Publication Date: 2018-03-06
浙江中巨海锐科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing flue gas purification system has the problems of large footprint, high operating cost, low pollutant removal rate, and unstable system operation. The present invention couples the electric field in the high-gravity rotating packed bed, which can largely Overcome the defects of existing flue gas purification system devices

Method used

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  • Flue gas purification system device and application thereof
  • Flue gas purification system device and application thereof
  • Flue gas purification system device and application thereof

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Effect test

Embodiment 1

[0042] Such as figure 1 As shown, the present invention proposes a device system for flue gas purification, including a heat exchanger (1), a chimney (2), a high-gravity rotating packed bed-electric field coupling device (3), a liquid storage tank (4), and a Mister (13), electric demister (14), liquid ammonia storage tank (15), gas mixer (16), air compressor (17);

[0043] The electric field in the high-gravity rotating packed bed-electric field coupling device is a line barrel pulsed corona discharge electric field, and the distance between the high-voltage discharge wire and the grounding plate is 20-100mm; the power supply is a high-voltage pulse power supply, and the input voltage is 220V. The output voltage range is 30-150KV, and the frequency range is 50Hz-500Hz;

[0044] The high-gravity rotating packed bed-electric field coupling device is installed vertically, including a base, a motor, a coupling, a gas inlet, a gas outlet, a liquid inlet, and a liquid outlet; a bas...

Embodiment 2

[0049] Use the flue gas purification device system of embodiment 1 to carry out flue gas removal of nitrogen oxides:

[0050] Capacity: 60000Nm 3 / h, the imported nitrogen oxide content is 350-500mg / m3 (more than 95% is NO), and sodium carbonate solution is used as the absorption liquid in the liquid storage tank, and the amount of absorption liquid is about 200m 3 / h. Regulates the supply voltage, controlling the O 3 yield, so that O 3 The / NOx molar ratio is 0.8 to 1.4. Use this system to treat the nitrogen oxides in the flue gas, and the nitrogen oxide content in the outlet flue gas is lower than 80mg / m 3 .

Embodiment 3

[0052] Use the flue gas purification device system of embodiment 1 to carry out flue gas removal of nitrogen oxides, sulfur dioxide:

[0053] Capacity: 150000Nm 3 / h, the imported nitrogen oxide content is 300-500mg / m3 (more than 90% is NO), and the sulfur dioxide content is 200-400mg / m3 3 , Sodium carbonate solution is used as the absorbing liquid in the liquid storage tank, and the amount of absorbing liquid is about 500m 3 / h. Control the amount of ammonia added to make NH 3 The / NOx molar ratio is 1.0 to 2.0. Use this system to treat nitrogen oxides and sulfur dioxide in the flue gas, and the nitrogen oxide content in the outlet flue gas is lower than 80mg / m 3 , the sulfur dioxide content is less than 5mg / m 3 .

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Abstract

The invention discloses a flue gas purification system device and application thereof, relating to the technical field of air purification. The device comprises a heat exchanger, a liquid ammonia storage tank, an air compressor, an air mixer, a supergravity rotary filling bed-electric field coupling device, an antifoamer, an electric mist precipitator, a liquid storage pool and a chimney. The supergravity rotary filling bed-electric field coupling device couples an electric field inside the rotary filling bed, so as to integrate flue gas oxidoreduction-absorption; NO in the flue gas is oxidized by ozone produced by the electric field in a supergravity inner cavity or is reduced by amino radicals produced by ammonia gas in the electric field and then enters a filling material to be forced to absorb, so that pollutants such as nitrogen oxides, hydrogen chloride, sulfur dioxide, hydrogen fluoride and dust in the flue gas are eliminated. The flue gas purification device has a simple structure, occupies a small area, has an easy technological process, has high gas-liquid mass transfer efficiency, and can remove 85% or more nitrogen oxides and 98% or more hydrogen chloride, sulfur dioxide, hydrogen fluoride, dust and the like.

Description

technical field [0001] The invention relates to the technical field of gas purification. More specifically, it relates to a flue gas purification system device and its application. Background technique [0002] Nitrogen oxides, hydrogen chloride, sulfur dioxide, hydrogen fluoride and dust in the flue gas are discharged into the atmosphere, which will cause serious harm to human beings and the environment. Humans will NO x Inhaled into the body, it will irritate the respiratory tract and lungs, and cause corrosion to the heart, liver, kidneys, etc. Nitrogen oxides discharged into the atmosphere will form acid rain, causing serious disasters to the ecological environment; HCl will corrode human skin and mucous membranes, and in severe cases Pulmonary edema will occur; the emission of sulfur dioxide into the atmosphere will not only cause human respiratory diseases, but also form acid rain; hydrogen fluoride will corrode and oxidize human tissues; dust will cause respiratory ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D47/02B01D50/00B01D53/14B01D53/18B01D47/14B01D53/32B01D53/56B01D53/75B01D53/76
CPCB01D47/02B01D47/14B01D50/00B01D53/1456B01D53/1481B01D53/18B01D53/323B01D53/56B01D53/75B01D53/76B01D2247/102B01D2256/10B01D2257/2045B01D2257/2047B01D2257/302B01D2257/404B01D2258/0283
Inventor 孙宝昌王计伟初广文邹海魁罗勇张亮亮陈建峰
Owner 浙江中巨海锐科技有限公司
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