Method for producing both gas and steam, and boiler of circulating fluid bed with pyrolysis vaporizer

A circulating fluidized bed, pyrolysis and gasification technology, applied in fluidized bed combustion equipment, combustion method, combined combustion mitigation, etc., can solve the problem of unsatisfactory cost, service life and reliability, difficulty in mixing uniformly, and large wear and tear of conveying pipes To achieve the effect of improving coal utilization rate, flexible adjustment, stable gas volume and composition

Inactive Publication Date: 2006-02-01
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI +1
View PDF1 Cites 45 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Part or all of the circulating ash enters the retort, and the amount of ash entering the retort is controlled through the ash volume adjustment door. The mechanical ash volume adjustment door works at high temperature, and the cost, life and reliability are not ideal
The circulating ash and coal are sent to the two inlets on the retort separately, which is not easy to m

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
  • Method for producing both gas and steam, and boiler of circulating fluid bed with pyrolysis vaporizer
  • Method for producing both gas and steam, and boiler of circulating fluid bed with pyrolysis vaporizer
  • Method for producing both gas and steam, and boiler of circulating fluid bed with pyrolysis vaporizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0033] As shown in accompanying drawing 1, the circulating fluidized bed boiler with pyrolysis gasification chamber provided by the present invention comprises fluidized bed combustion chamber 1, cyclone separator 2, hot ash distributor 3, pyrolysis gasification chamber 4, differential Speed ​​bed return device 5 and auxiliary pipeline;

[0034]The fluidized bed combustion chamber 1 is a conventional circulating fluidized bed boiler combustion chamber, the lower chamber wall is provided with a furnace front coal inlet 11 and a desulfurizer inlet 12, and the bottom of the fluidized bed combustion chamber 1 is provided with a flow The chemical air inlet 13, and a water-cooled heating surface is arranged in the combustion chamber;

[0035] The side inlet of the cyclone separator 2 communicates with the upper part of the fluidized bed combustion chamber 1, and t...

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 present invention relates to a gas-steam joint production method and circulating fluidized-bed boiler. It includes the following portions: fluidized-bed combustion chamber, cyclone separator, hot ash distributor, pyrolysis gasification chamber, heat exchanger and differential bed material-retuning device. Said invention also provides its concrete technological process, it can be used as steam boiler, and can implement gas-steam joint production.

Description

technical field [0001] The invention relates to a coal gas-steam co-production method and a circulating fluidized bed boiler with a pyrolysis gasification chamber. technical background [0002] Existing coal-fired boilers and gasifiers can only produce steam and gas alone, while existing gas-steam cogeneration boilers often only guarantee stable gas production. For fluidized bed gas-steam cogeneration equipment, there are two types of gasification chambers commonly used, namely moving bed gasification chamber and bubbling bed gasification chamber. In the moving bed gasification chamber, semi-coke is often returned to the combustion chamber in a self-flowing manner, which cannot control the residence time of the material in the gasification chamber and affects the conversion rate of carbon; while the returning material on a conventional circulating fluidized bed boiler The device is also not suitable here, because the particle size of the semi-coke is much larger than that o...

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): F23C10/02F23C101/00C10J3/14
CPCY02E20/18
Inventor 吕清刚那永洁包绍麟孙运凯贺军高鸣范晓旭冯长暄梁灼林
Owner INST OF ENGINEERING THERMOPHYSICS - 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