Flue gas quenching dust removal device for inhibiting dioxin regeneration and control method

A technology of dust removal device and flue gas quenching, which is applied in combination devices, separation methods, chemical instruments and methods, etc., can solve problems such as secondary combustion, hidden dangers, and troublesome sewage treatment, and achieve the effect of ensuring heat exchange efficiency.

Pending Publication Date: 2020-08-14
CISDI RES & DEV CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional water-wall heat exchange cooling method has low heat transfer efficiency, high-temperature flue gas stays in the resynthesis temperature window for a long time, and has poor inhibition on the synthesis of dioxins
The traditional method of directly spraying water to cool down will produce more sewage, and sewage treatment is very troublesome, and direct water spraying will cause the moisture content of the flue gas to rise sharply. After the dust and water in the flue gas are mixed, it is easy to cause pipe blockage or dust bag The problem of "sticky bag"; the mixing of flue gas and air can achieve the effect of cooling, but the oxygen in the air will react with the residual carbon powder or carbon monoxide in the flue gas, resulting in secondary combustion or explosion, which not only affects the cooling effect of mixing, more safety hazards

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
  • Flue gas quenching dust removal device for inhibiting dioxin regeneration and control method
  • Flue gas quenching dust removal device for inhibiting dioxin regeneration and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0023] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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 field of electric arc furnace flue gas dioxin inhibition and flue gas dust removal, and relates to a flue gas quenching dust removal device for inhibiting dioxin regeneration and a control method. The device comprises a water-cooling cyclone separator, a mixed air cooler, a bag-type dust remover and a chimney which are arranged in sequence; one end of an outlet of thebag-type dust collector is connected with the chimney, and the other end is connected with the mixed air cooler through a circulating flue; and an air mixing fan is arranged in the mixed air cooler. According to the device, the heat exchange efficiency is high, and dioxin resynthesis is effectively inhibited; the problems of sewage treatment, pipeline blockage, dust removal cloth bag pasting and the like cannot be caused; flue gas mixing cooling instead of air mixing cooling is utilized, so that the problems caused by secondary combustion of flue gas can be effectively avoided; and dust removal equipment in the system can realize dust removal and purification of the flue gas in the circulation process, so that the flue gas reaches the emission standard.

Description

technical field [0001] The invention belongs to the fields of electric arc furnace flue gas dioxin suppression and flue gas dust removal, and relates to a flue gas quenching and dust removal device and a control method for suppressing dioxin regeneration. Background technique [0002] Electric arc furnace steelmaking has the characteristics of short process and energy saving. With the continuous growth of scrap steel in my country and the adjustment of national industrial structure, "short process" electric arc furnace steelmaking will gradually replace part of "long process" converter steelmaking. However, in the process of electric arc furnace steelmaking, plastics, paints and other chlorine-containing organic substances are attached to waste steel raw materials, which will decompose and burn into dioxins at high temperatures. Such substances are acutely lethal, highly carcinogenic, and teratogenic etc., capable of causing extensive and long-term harm to any animal. On th...

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 Applications(China)
IPC IPC(8): B01D50/00F23J15/06F27D17/00
CPCF23J15/06F27D17/008B01D50/20Y02E20/30Y02P10/25
Inventor 王大滨
Owner CISDI RES & DEV CO LTD
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