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Flue gas desulfurization and denitrification system device and method adopting ozone oxidation in cooperation with multi-stage spraying

A desulfurization and denitrification, system device technology, applied in the direction of chemical instruments and methods, combined devices, fertilization devices, etc., can solve the problem of easy blockage of the packing layer, gas resistance, etc., to optimize the flue gas flow field, reduce solid matter, and improve absorption effect Effect

Pending Publication Date: 2020-12-11
GUANGDONG J TECH ENVIRONMENT SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the added packing layer still has the problems of easy clogging and large gas resistance

Method used

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  • Flue gas desulfurization and denitrification system device and method adopting ozone oxidation in cooperation with multi-stage spraying

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] This embodiment provides a flue gas desulfurization and denitrification system device with ozone oxidation and multi-stage spraying, such as figure 1 As shown, a flue gas desulfurization and denitrification system device based on ozone oxidation and multi-stage spraying provided in the specific embodiment, wherein the flue gas desulfurization and denitrification system device includes first-stage spray absorption devices connected in sequence along the flue gas flow direction And the second-stage spray absorption device, two spiral spray modules 13 are arranged in the spray absorption device along the flue gas flow direction, the angle between the ozone inlet pipeline and the flue gas inlet pipeline is 45°, and the inclined spray module 6 The spraying direction is 60° upwards.

[0090] This embodiment also provides the desulfurization and denitrification method of the above-mentioned flue gas desulfurization and denitrification system device using ozone oxidation in con...

Embodiment 2

[0097] This embodiment provides a flue gas desulfurization and denitrification system device with ozone oxidation and multi-stage spraying, such as figure 1 As shown, a flue gas desulfurization and denitrification system device based on ozone oxidation and multi-stage spraying provided in the specific embodiment, wherein the flue gas desulfurization and denitrification system device includes first-stage spray absorption devices connected in sequence along the flue gas flow direction And the second-stage spray absorption device, two spiral spray modules 13 are arranged in the spray absorption device along the flue gas flow direction, the angle between the ozone inlet pipeline and the flue gas inlet pipeline is 90°, and the inclined spray module 6 The spraying direction is 30° upwards.

[0098] This embodiment also provides the desulfurization and denitrification method of the above-mentioned flue gas desulfurization and denitrification system device using ozone oxidation in con...

Embodiment 3

[0105] This embodiment provides a flue gas desulfurization and denitrification system device with ozone oxidation and multi-stage spraying, based on the flue gas desulfurization and denitrification system device with ozone oxidation and multi-stage spraying provided in the specific embodiment, wherein the flue gas desulfurization The denitrification system device includes a first-stage spray absorption device, a second-stage spray absorption device and a third-stage spray absorption device connected in sequence along the flue gas flow direction. A spiral spray module 13 is arranged in the spray absorption device, and the ozone The included angle between the intake pipeline and the flue gas intake pipeline is 135°, and the spraying direction of the inclined spray module 6 is 45° upward.

[0106] This embodiment also provides the desulfurization and denitrification method of the above-mentioned flue gas desulfurization and denitrification system device using ozone oxidation in co...

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PUM

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Abstract

The invention provides a flue gas desulfurization and denitrification system device and a flue gas desulfurization and denitrification method adopting ozone oxidation in cooperation with multistage spraying. The desulfurization and denitrification system device comprises a mixing device, an oxidation absorption device and a spraying absorption device which are sequentially connected in the flowingdirection of flue gas, the interior of the oxidation absorption device is sequentially divided into an air inlet area, a spraying area, an oxidation area and an exhaust area which are communicated with one another in the air inlet direction, and an inclined spraying module is arranged on the inner wall, where the spraying area is located, of the shell; the mixing device is externally connected with an ozone generating device; and the ozone generating device is also connected to the shell where the oxidation zone of the oxidation absorption device is located. The desulfurization and denitrification method comprises the steps that flue gas and ozone are mixed and oxidized and then sequentially enter a spraying area and an oxidation area of the oxidation absorption device, the flue gas enters the spraying absorption device to be sprayed and absorbed again after being sprayed, absorbed and oxidized, and desulfurization and denitrification of the flue gas are completed. Ozone oxidation iscooperated with multi-stage inclined spraying, so that desulfurization and denitrification treatment can be effectively carried out on flue gas.

Description

technical field [0001] The invention belongs to the technical field of flue gas desulfurization and denitrification, and relates to spraying flue gas desulfurization and denitrification, in particular to a flue gas desulfurization and denitrification system device and method for ozone oxidation and multi-stage spraying. Background technique [0002] In recent years, in industries such as medicine, electronic component factories, chemical industry, metallurgy and thermal power plants, SO 2 , NO x The emission reduction has received widespread attention. Taking the steel and coking industries as examples, sintering flue gas and coke oven flue gas are the main SO 2 and NO x The discharge temperature of these flue gases is generally low (150-250°C), which cannot meet the temperature requirements of the traditional SCR process. Therefore, the SCR denitrification technology that has been maturely used in the power industry cannot be directly applied. Although the method of rai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/75B01D53/56B01D50/00B01D53/78B01D53/50C01C1/22C01C1/246C05C3/00
CPCB01D50/00B01D53/502B01D53/56B01D53/75B01D2251/104B01D2251/2062B01D2258/0283C01C1/22C01C1/246C05C3/00
Inventor 钟璐杨颖欣胡静龄刘勇胡小吐薛学良
Owner GUANGDONG J TECH ENVIRONMENT SCI CO LTD
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