Swirl pulverized-coal burner based on multi-level pulverized-coal concentration

A pulverized coal burner and pulverized coal concentration technology, which is applied in the direction of burners, burners, and combustion methods for burning powder fuels, to achieve the effects of reduced emissions, low NOx combustion, stable combustion, and simple structure

Inactive Publication Date: 2010-09-15
SHANGHAI JIAO TONG UNIV
View PDF4 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by the conveying capacity of the pulverized coal blower and the consideration of the safety of pulverized coal transportation, the pulverized coal concentration at t

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
  • Swirl pulverized-coal burner based on multi-level pulverized-coal concentration
  • Swirl pulverized-coal burner based on multi-level pulverized-coal concentration
  • Swirl pulverized-coal burner based on multi-level pulverized-coal concentration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0022] Such as Figure 1-Figure 3 As shown, this embodiment includes: a central oil gun 1, a primary air duct 2, an inner secondary air duct 3 and an outer secondary air duct 4, wherein: the central oil gun 1 is arranged at the inner center of the primary air duct 2, and the inner secondary air duct 2 The air duct 3 is fixedly arranged outside the primary air duct 2 , and the outer secondary air duct 4 is vertically arranged outside the inner secondary air duct 3 .

[0023] The primary air duct 2 includes: a primary air elbow 5, a primary air straight pipe 6 and a primary air flare 7 sequentially connected from th...

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 provides a swirl pulverized-coal burner based on multi-level pulverized-coal concentration, comprising a central oil gun, a primary air pipe, a secondary inner air pipe and a secondary outer air pipe, wherein, the central oil gun is arranged in the center of the primary air pipe; the secondary inner air pipe is fixedly arranged outside the primary air pipe, and the secondary outer air pipe is vertically arranged outside the secondary inner air pipe. The swirl pulverized-coal burner realizes deep dense-weak combustion, achieves low NOx combustion and stable combustion by coordinating with a reasonable aerodynamic field; and the swirl pulverized-coal burner has the advantages of simple structure, low resistance and convenient operation, and can effectively prevent abrasion and is easily applied to the process of burner reformation.

Description

technical field [0001] The invention relates to a device in the technical field of power plant boilers, in particular to a swirling pulverized coal burner based on multi-stage pulverized coal concentration. Background technique [0002] Nitrogen oxide (NOx) is the main pollutant that causes air pollution. It not only forms acid rain, destroys the ecological environment, but also forms photochemical smog, which endangers human health. According to the new GB 13223-2003 "Emission Standard of Air Pollutants for Thermal Power Plants", coal-fired boilers are required to meet Vdaf > 20%, NOx < 450mg / Nm3, 10% < Vdaf < 20% since January 1, 2004 , its NOx<650mg / Nm3, Vdaf<10%, its NOx<1100mg / Nm3; and under the premise that the emission concentration reaches the standard, the total amount of NOx emission should be charged, so it is beneficial to reduce the total amount of NOx generated during combustion as much as possible. Reducing the operating cost of the denit...

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
IPC IPC(8): F23D1/02
Inventor 范卫东林正春肖萌李友谊章明川
Owner SHANGHAI JIAO TONG UNIV
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap