Self-declining type circulating ash cooling device and treatment method for circulating ash

A technology of cooling device and circulating ash, applied in the direction of combustion method, combustion type, lighting and heating equipment, etc., can solve the problems of increased tail ash concentration, increased wear of induced draft fan, and decreased furnace temperature, so as to reduce and improve the tail ash concentration. Running performance, effect of reducing inlet concentration

Inactive Publication Date: 2007-03-07
XIAN THERMAL POWER RES INST CO LTD
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This treatment method will produce excessive circulating ash for CFB boilers burning high-ash low-quality coal, which will cause a series of problems: the temperature of the furnace will drop, especially the temperature in the dense phase zone will drop even more, even below 800 ° C, The proportion of incomplete combustion of the bottom slag increases; because the amount of wear is proportional to the ash concentration, the wear of the water wall of the furnace is intensified; the ash concentration at the tai

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
  • Self-declining type circulating ash cooling device and treatment method for circulating ash
  • Self-declining type circulating ash cooling device and treatment method for circulating ash

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0010] Referring to Figures 1 and 2, the present invention includes a feeder 1 and an ash discharge pipe 2 arranged at the bottom of the feeder, an expansion joint 3 is arranged on the ash discharge pipe 2, and the inlet of the cooler 5 is connected with the ash discharge through a manual valve 4 The pipe 2 is connected, and the outlet of the cooler 5 is connected with the rotary control valve 6. The heating surface of the cooler 5 adopts a spiral tubular structure. The cooler 5 of this embodiment adopts a coaxially arranged multi-layer spiral tube heating surface. The outlet of the control valve 6 communicates with the pneumatic conveying pipeline 7 .

[0011] The treatment method of the present invention is as follows: firstly open the manual valve 4, and the circulating ash discharged from the feeder 1 enters the cooler 5 through the ash discharge pipe 2 a...

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

This invention relates to self-lowering ash cooling device and recycle ash process method, which comprises the following steps: materials back device and ash tube on bottom; setting expansion degree at ash tube with entrance through dynamic valve and ash tube; the cooling exit and rotation control valve are connected; when in use firstly opening handle valve from back materials through ash tube, handle valve into cooling device under 150 degrees through cooling chamber and then entering high voltage gas through gas transmission tube into ash discharge database.

Description

technical field [0001] The invention relates to a circulating ash cooling device and a circulating ash processing method of a circulating fluidized bed, in particular to a self-falling circulating ash cooling device and a circulating ash processing method. Background technique [0002] At present, the circulating fluidized bed boiler feeder at home and abroad is only provided with an ash discharge pipe at the bottom of the feeder. This treatment method will produce excessive circulating ash for CFB boilers burning high-ash low-quality coal, which will cause a series of problems: the temperature of the furnace will drop, especially the temperature in the dense phase zone will drop even more, even below 800 ° C, The proportion of incomplete combustion of the bottom slag increases; because the amount of wear is proportional to the ash concentration, the wear of the water wall of the furnace is intensified; the ash concentration at the tail increases, and the heating surface at ...

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): F23C10/26
Inventor 徐正泉吕海生江建忠肖平蒋敏华
Owner XIAN THERMAL POWER RES INST 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

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