Combustion and smoke and dust removal method of small boiler combusting soft coal II and III

A technology for smoke and dust removal and small boilers, applied in the combustion method, combustion air/fuel supply, combustion equipment, etc., can solve the problems of high boiler operating costs, substandard smoke and dust emissions, and high anthracite coal prices

Inactive Publication Date: 2012-11-28
青岛艳阳天环保有限公司
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For burning anthracite, although its emissions can meet environmental protection requirements, the disadvantages of high anthracite price and high boiler operating costs are very ob

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
  • Combustion and smoke and dust removal method of small boiler combusting soft coal II and III

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for eliminating smoke and dust by burning Class II and III bituminous coal in a small boiler. The boiler involved is shown in the figure, which includes a furnace 1, a furnace arch 2, a coal filling port 3, a slag loosening port 4, an ashes removal port 5, Secondary air device 6, horizontal smoke pipe 7, vertical smoke pipe 8, furnace arch ash removal port 9, and ash removal port 10; among them, the front panel of furnace 1 is provided with coal filling port 3, slag loosening port 4 and ash removal port 5 , the slag opening 4 is set under the coal filling opening 3, and the ash removal opening 5 is set under the slag opening 4; the furnace arch 2 is arranged at the rear end of the furnace 1; The second heat exchange area 12; the lower end of the right side of the furnace 1 is provided with a secondary air device 6; the first heat exchange area 11 is provided with a number of rows of horizontal smoke pipes 7, and the bottom of the horizontal smoke pipes 7 is prov...

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 discloses a combustion and smoke and dust removal method of small boiler combusting soft coal II and III. The method comprises the following steps of: (1) combustion and smoke removal: in combustion work of a boiler, primary air enters a fire grate so as to combust coal in a hearth, fume generated in the combustion process in the hearth is blocked by a furnace arch arranged at the back of the hearth and negative pressure is formed at the same time; secondary air is opened automatically to feed air in the furnace arch so as to form an oxygen-enriched region at a furnace arch port, and smoke dust is combusted fully again at the furnace arch port; and (2) dust removal: the fume after combustion and smoke removal enters a first heat exchange region of the boiler to carry out heat exchange and sequentially enters a plurality of rows of vertical fume pipes in a second heat transfer region, wherein the fume enters a first vertical fume pipe from top to bottom, enters a second vertical fume pipe from bottom to top, enters a third vertical fume pipe top to bottom and so on, and dust of the fume in a circulation process falls into a dust cleaning opening. By the method provided by the invention, the small boil can achieve the effects of high-efficiency combustion and cleaning discharge when combusting soft coal II and III, and the heat efficiency of the boiler is improved.

Description

technical field [0001] The invention belongs to the field of boilers, and in particular relates to a method for eliminating smoke and dust by burning Class II and III bituminous coal in a small boiler. Background technique [0002] Coal-fired small boilers are widely used in industrial and agricultural production and daily life. But looking at the existing coal-fired small boilers either burn anthracite, or burn Class II and III bituminous coal. For burning anthracite, although its emissions can meet environmental protection requirements, the disadvantages of high price of anthracite and high operating costs of boilers are very obvious. Compared with burning anthracite, burning Class II and III bituminous coal has the advantage of being economical, but its disadvantages of black smoke and smoke emission not up to standard are also prominent. Contents of the invention [0003] The object of the present invention is to provide a method for eliminating smoke and dust by bur...

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): F23B90/04F23L1/02F23L9/02
CPCY02E20/34
Inventor 张国军郭晓艳李秀强杨吉强陈琳张景文
Owner 青岛艳阳天环保有限公司
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

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