A kiln scr denitrification process

A denitrification and process technology, applied in the field of industrial waste gas treatment, can solve the problems of inability to effectively solve the escape of ammonia gas, inability to ensure complete reaction, inconvenient recovery of reducing agents, etc., and achieve the effects of reducing costs, facilitating recovery and reuse, and improving speed.

Active Publication Date: 2020-06-09
广西新榕兴建材科技有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can remove nitrogen oxides in industrial waste gas, the traditional SCR denitrification device is no longer fully capable of meeting the higher and higher emission requirements. The traditional process cannot effectively solve the escape of ammonia gas, and the traditional method requires SCR denitrification. The device is heated to make the catalyst reach the ideal catalytic temperature. At the same time, the traditional method of using ammonia and industrial waste gas to react cannot guarantee the complete reaction. It is inconvenient to recover the remaining reducing agent after the reaction, which increases the cost and causes economic losses.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kiln scr denitrification process
  • A kiln scr denitrification process
  • A kiln scr denitrification process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0028] Such as Figure 1 to Figure 4 Shown, a kind of kiln SCR denitrification process of the present invention, this denitrification process comprises the steps:

[0029] Step 1: Extract the high-temperature flue gas from the extremely cold section of the kiln and lead it to the kiln head;

[0030] Step 2: In step 1, after the high-temperature flue gas is introduced to the kiln head, the high-temperature flue gas at the kiln head is mixed with the flue gas in the kiln head, so that the temperature of the flue gas in the kiln rises to 350°C;

[0031] Step 3: After the gas in the kiln is heated up in step 2, the heated high-temperature flue gas is passed into the SCR denitrification device;

[0032]Step 4: After passing high-temperature flue gas ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of industrial exhaust gas treatment, and more specifically relates to a kiln SCR denitration technology. The kiln SCR denitration technology comprises following steps: kiln extreme cold segment high temperature flue gas is introduced into a kiln head; when the high temperature flue gas is introduced into the kiln head, kiln head high temperature flue gas is mixed with flue gas in the kiln head, so that the temperature of the flue gas in the kiln head is increased to 350 DEG C; after temperature increasing, the high temperature flue gas is introducedinto a SCR denitration device; after introduction of the high temperature flue gas into the SCR denitration device, ammoniacal liquor is introduced into the SCR denitration device for reaction of ammoniacal liquor with high temperature flue gas; after reaction, the gas obtained after denitration is discharged into the air. The kiln SCR denitration technology is suitable for high standard industrial exhaust gas treatment, can be used for reducing the content of nitrides in industrial exhaust gas to be lowest, reducing atmosphere pollution, increasing denitration rate, is convenient for recycling of reducing agents, and is capable of reducing treatment cost.

Description

technical field [0001] The invention belongs to the technical field of industrial waste gas treatment, in particular to a kiln SCR denitrification process. Background technique [0002] In recent years, environmental pollution problems such as smog, acid rain and photochemical smog caused by various air pollutants emitted by my country's industrial production have emerged one after another, causing great harm. The requirements for emission limits of atmospheric pollutants from boilers are becoming increasingly stringent, the state and government have continuously revised the emission standards of air pollutants, and the control requirements have been continuously improved. From the 2011 "Pollutant Emission Standards for Thermal Power Plants" Coal Power Energy Conservation and Emission Reduction Upgrading and Transformation Action Plan (2014-2020), the emission requirements of coal-fired units for nitrogen oxides are further increased from 100mg / Nm3 to 50mg / Nm3 for gas-fired un...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/90B01D53/56
CPCB01D53/8625B01D53/90B01D2251/206
Inventor 朋仁锋
Owner 广西新榕兴建材科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products