A W-type flame decoupling combustion furnace and decoupling combustion method

A combustion method and combustion furnace technology, which are applied in the combustion method, combustion air/fuel supply, combustion equipment, etc., can solve the problems of reduced boiler efficiency and safety, and increased carbon content in fly ash.

Inactive Publication Date: 2011-12-28
INST OF PROCESS ENG CHINESE ACAD OF SCI
View PDF7 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] If simply intensified combustion, simple air graded supply and lower furnace temperature, although to a certain extent can make NO x

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 W-type flame decoupling combustion furnace and decoupling combustion method
  • A W-type flame decoupling combustion furnace and decoupling combustion method
  • A W-type flame decoupling combustion furnace and decoupling combustion method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] The W-type flame decoupling combustion furnace and the decoupling combustion method of the present invention will be further described below in conjunction with the accompanying drawings.

[0059] Such as Figure 1~2 As shown, the W-type flame decoupling combustion furnace of the present invention includes a bottom boundary air nozzle 1, a lower furnace 2, a secondary air nozzle 3 under the side wall, a secondary air nozzle 4 on the side wall, and a secondary air nozzle 5 attached to the wall. Light primary air nozzle 6, thick primary air nozzle 7, super concentrated primary air nozzle 8, upper furnace burnout air nozzle 9, flue gas flow 10, upper furnace 11, upper furnace side wall 12, lower furnace arch 13, lower furnace side Wall 14, lower furnace cold ash hopper wall 15 and boiler side wall 16.

[0060] The structure of the W-type flame furnace of the present invention and the air distribution mode are as figure 1 shown.

[0061] The multi-channel pulverized coal...

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 relates to a W-type flame decoupling combustion furnace and a decoupling combustion method. A hearth of the decoupling combustion furnace is enclosed by a front and a back side walls, an upper hearth side wall (12), a lower hearth arch (13), a lower hearth side wall (14), and a lower hearth cold ash hopper wall (15); the lower hearth arch (13) is provided with several groups of symmetric super-dense primary air nozzle (8), dense primary air nozzle (7) and light primary air nozzle (6) which are orderly arranged from the hearth center to the outside; the several groups of primary air nozzles (8, 7, 6) are uniformly arranged between the front and the back walls on the lower hearth arch (13) with a downward nozzle direction; several above-side wall secondary air nozzles (4) are symmetrically arranged on the lower hearth side wall (14); the above-side wall secondary air nozzles (4) and the primary air nozzles (8, 7, 6) are staggeredly arranged along the anterior/posterior direction; several below-side wall secondary air nozzles (3) are arranged between the front and the back walls on the lower hearth side wall (14). The device of the invention reduces the generation of NOx and fly ash combustible matter.

Description

technical field [0001] The invention relates to the field of pulverized coal combustion equipment, in particular, the invention relates to a W-shaped flame decoupling combustion furnace and a decoupling combustion method. Background technique [0002] In the practical application of pulverized coal combustion, with the increase of the combustion temperature and oxygen concentration of the pulverized coal-air mixture in the combustion stage, the pulverized coal is more likely to be burned quickly and fully, and the fly ash combustibles (unburned carbon and CO ) content is reduced; at the same time, high temperature oxygen enrichment will make the NO produced in the combustion process x On the other hand, the lower the combustion temperature and oxygen concentration of the pulverized coal-air mixture in the combustion stage, the better the suppression of nitrogen oxides NO x Generated, but coal dust is less likely to burn out. Therefore, the removal of fly ash combustibles a...

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): F23C7/00F23L1/00F23L9/00
Inventor 郝江平李静海高士秋魏绍清刘文伟闫润生何京东许光文
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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