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Multifunctional superimposed flue gas deep purification system

A deep purification of flue gas, multi-functional technology, applied in chemical instruments and methods, filtration circuits, use of liquid separation agent, etc., can solve the problem of not being able to reach the limit of ultra-low emissions

Active Publication Date: 2016-10-12
顾志龙
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the flue gas purification processes at home and abroad are all "single-function serial purification processes", and the highest removal rate: smoke and dust is 98-99%, SO 2 ≤98%, NO X ≤90%, unable to meet the "ultra-low emission" limit

Method used

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  • Multifunctional superimposed flue gas deep purification system
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  • Multifunctional superimposed flue gas deep purification system

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with specific embodiment and accompanying drawing, set forth more details in the following description so as to fully understand the present invention, but the present invention can obviously be implemented in many other ways different from this description, Those skilled in the art can make similar promotions and deductions based on actual application situations without violating the connotation of the present invention, so the content of this specific embodiment should not limit the protection scope of the present invention.

[0037] Multifunctional superimposed flue gas deep purification system such as figure 1 As shown, the unpurified flue gas 15 enters the horizontally stacked first-pass purification device 11, the first-pass purified flue gas enters the second-pass purification device 12, and the flue gas that passes through the second-pass purification device 12 enters the third pass Purifying d...

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Abstract

The invention provides a multifunctional superimposed flue gas deep purification system. The system realizes deep purification of flue gas and reduces pollutant discharge. The system comprises at least one module, the module comprises at least one unit, the unit comprises N purifiers, a flue gas cooling device and a dew capture device, the N purifiers are orderly divided into a first-grade purifier, a second-grade purifier, ..., and a Nth-grade purifier along a flue gas flowing direction, N is greater than or equal to 3, flue gas is subjected to superimposed purification under action of the N purifiers and then is cooled through the flue gas cooling device and then the dew in the flue gas is captured by the dew capture device, wherein pollutants in flue gas are deep removed through all the purifiers.

Description

technical field [0001] The invention relates to a flue gas purification system, in particular to a flue gas purification system for industrial furnaces and thermal power plants. Background technique [0002] The "AQI" in most parts of China is 3-4 times higher than the international air pollutant standards, and the pollutants emitted by the flue gas of coal-fired boilers account for about 40%. [0003] In January 2016, China introduced an "ultra-low emission standard" for flue gas from coal-fired boilers in power plants, which is much stricter than the special emission standard issued in 2014. The standards are as follows: [0004] [0005] Based on the above upper limit, the original concentration of PM in the smoke is 20000mg / m 3 Calculated, the removal rate must reach more than 99.95%; take the SO in the flue gas 2 The original concentration is 2000mg / m 3 Calculated, the removal rate must reach more than 98.25%; the NO in the flue gas X The original concentration ...

Claims

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Application Information

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IPC IPC(8): B01D53/18B01D53/00B01D47/06B01D50/00B01D36/04
CPCB01D36/04B01D47/06B01D50/00B01D53/002B01D53/1406B01D53/1425B01D53/1456B01D53/1481B01D53/1487B01D53/18
Inventor 顾志龙顾晟华
Owner 顾志龙
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