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Highly effective wet-process desulfurizing, denitrifying and dedusting process and integration device thereof

A wet desulfurization and denitrification technology, which is applied to combined devices, chemical instruments and methods, dispersed particle separation, etc., can solve the problems of corrosion of treatment equipment, complicated processes, secondary pollution, etc. Efficiency, the effect of reducing material wear

Inactive Publication Date: 2007-07-11
江苏溧竹环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various treatment methods have their own shortcomings. Some require large investment in equipment that cannot be realized by enterprises and institutions. Some have complicated processes and difficult treatment techniques. Some will cause secondary pollution. The high price makes the operating cost too high for enterprises and institutions to bear. Some treatment equipment is severely corroded and cannot be used for a long time, and some treatment effects are poor and cannot meet the requirements of national emission standards.

Method used

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  • Highly effective wet-process desulfurizing, denitrifying and dedusting process and integration device thereof
  • Highly effective wet-process desulfurizing, denitrifying and dedusting process and integration device thereof
  • Highly effective wet-process desulfurizing, denitrifying and dedusting process and integration device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A high-efficiency wet desulfurization, denitrification and dust removal process is characterized in that it includes the following process steps:

[0040] a. Prepare the absorbent and send the absorbent to the main tower: prepare the absorbent in the alkaline pool 2 by adding calcium hydroxide and sodium hydroxide to the water and stirring and mixing. Sodium hydroxide neutralizes the calcium hydroxide in the water to make it into sodium hydroxide and sodium carbonate, and the double lye composed of sodium hydroxide and sodium carbonate is the absorbent. The composition ratio of sodium hydroxide, calcium hydroxide and water added to the double lye absorbent is 2:6:250-400. Adjust the pH of the absorbent to 11-12. The prepared absorbent is sent from the alkaline water tank 2 to the pump forebay 1 and then sent to the upper part of the main tower 11 by the water pump 18 through pipelines, and then flushed downwards from the central tube type liquid supply device 10 at the...

Embodiment 2

[0057]The spacing between each layer of swirl plate towers 9, 8, 7 is 110 centimeters. The diameter of the blind plate 22 in the middle of each swirl plate column is 90 centimeters. There are 100 swirl blades 23 on the upper swirl plate tower 9 and the middle swirl plate tower 8 , and 56 swirl blades 23 on the lower swirl plate tower 7 . There is an inclination angle between the swirl blades 23 of each swirl plate tower and the horizontal plane, and the inclination angle is 28 degrees.

[0058] The diameter of the blind plate 22 in the middle of the defogging plate tower 13 is 27 centimeters. 28 defogging blades 24 are arranged on the defogging plate tower 13 . There is an inclination angle between the defogging blade 24 and the horizontal plane, and the inclination angle is 29 degrees.

[0059] The desulfurization, denitrification and dust removal process of this embodiment is the same as that of Embodiment 1. Other structures of this embodiment are the same as those of E...

Embodiment 3

[0061] The spacing between each layer of swirl plate towers 9, 8, 7 is 100 centimeters. The diameter of the blind plate 22 in the middle of each swirl plate tower is 80 centimeters. There are 90 swirl blades 23 on the upper swirl plate tower 9 and the middle swirl plate tower 8 , and 46 swirl blades 23 on the lower swirl plate tower 7 . There is an inclination angle between the swirl blades 23 of each swirl plate tower and the horizontal plane, and the inclination angle is 26 degrees.

[0062] The diameter of the blind plate 22 in the middle of the defogging plate tower 13 is 22 centimeters. 25 defogging blades 24 are arranged on the defogging plate tower 13 . There is an inclination angle between the defogging blade 24 and the horizontal plane, and the inclination angle is 26 degrees.

[0063] The desulfurization, denitrification and dust removal process of this embodiment is the same as that of Embodiment 1. Other structures of this embodiment are the same as those of Em...

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Abstract

The invention relates to a method for removing sulfur, nitrogen and dust and relative device, wherein the method comprises that: preparing absorber, feeding smoke into main tower, using absorber to remove sulfur, nitrogen and dust, clearing smoke slag, recycling the absorber, dehumidifying the smoke and discharging. And the device comprises that: 1, sulfur-nitrogen-dust removing system formed by cyclone plate tower, tubular liquid feeder, liquid outlet, and smoke inlet; 2, the defroster formed by assist tower and defrost plate tower; 3, and absorber circulate system formed by circuit deposit pool, alkali pool, pump pool and water pump. The invention has low cost and non-second pollution, with long service life.

Description

Technical field [0001] The invention relates to a high-efficiency wet desulfurization, denitrification and dust removal process and its integrated device, belonging to the technical field of environmental protection and air pollution control, and specifically relates to a high-efficiency wet method for desulfurization, denitrification and dust removal of flue gas and its integrated device . Background technique [0002] At present, industrial production, transportation, and combustion of various fuels will produce and emit sulfur dioxide SO 2 , Nitrogen oxide NO X And soot, causing air pollution, among which boiler combustion is the most serious air pollution. Every year in China, acid rain pollution caused by sulfur dioxide and nitrogen oxides, damage to the ecological environment, damage to human health, and economic losses to agriculture, forestry, fishery, and materials amount to about 100 billion yuan. Therefore, the country has higher and higher requirements for the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/60B01D50/00
Inventor 史少军
Owner 江苏溧竹环境工程有限公司
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