Combined combustion device for combustion semi-coke, and combustion method

A combustion device and a combined technology, applied in the direction of combustion method, combustion using gaseous fuel and powder fuel, combustion chamber, etc., can solve problems such as inability to efficiently burn and utilize semi-coke, difficulty in igniting semi-coke, and difficulty in igniting

Pending Publication Date: 2019-05-28
HUAZHONG UNIV OF SCI & TECH +2
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Japanese patent No. JP2014018726-A proposes a "power plant using low-rank coal chemical looping combustion for thermal power generation", which utilizes low-rank coal through chemical looping combustion and enriches the CO in it 2 , but the system is still designed for the chemical looping combustion of coal, and cannot efficiently burn and utilize ultra-low volatile semi-coke
[0004] In general, a large amount of ultra-low volatile semi-coke produced in the coal gasification process is currently diffi

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
  • Combined combustion device for combustion semi-coke, and combustion method
  • Combined combustion device for combustion semi-coke, and combustion method
  • Combined combustion device for combustion semi-coke, and combustion method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0070] The present invention provides a preferred embodiment, such as figure 1 As shown, the combined combustion device for burning semi-coke includes a combustion chamber 4, a powder feeding pipeline 13, a methane pipeline 14, a primary air path 15, a secondary air path, an air supply air path 20, and a flue gas circulation system .

[0071] A swirl nozzle and straight-flow nozzles annularly distributed around the swirl nozzle are installed above the body of the combustion chamber 4 . The swirl nozzle is connected with the powder feeding pipeline 13, the methane pipeline 14 (methane can also be replaced by combustible...

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 combined combustion device for combustion semi-coke, and a combustion method. The combined combustion device comprises a combustion chamber, a flameless combustor, a powder feeding device, a gas pipeline, a primary air channel, a secondary air channel, a gas supplementing air channel and a smoke pipeline. According to the combined combustion device for the combustion semi-coke, and the combustion method, efficient and low-pollution utilization for the semi-coke can be realized; and mixing combustion for the semi-coke and pulverized coal is carried out in a manner of combined combustion, the volatilization and ignition characteristics of the semi-coke are improved, the burn-out of the semi-coke is promoted, a uniform temperature of the combustion chamber and low original emission of nitric oxides are realized, and then efficient, clean and large-scale combustion utilization for the semi-coke is achieved.

Description

technical field [0001] The invention relates to the technical field of semi-coke combustion, in particular to a combined combustion device and a combustion method for burning semi-coke. Background technique [0002] Energy and chemical utilization schemes developed on the basis of coal gasification, hydrogasification, and coal pyrolysis technologies are becoming an important development direction for efficient, clean, and economical development and utilization of coal. However, the coal gasification process will produce a large amount of ultra-low volatile (less than 4%) semi-coke. This kind of semi-coke has high ignition temperature, slow combustion reaction rate, and long burnout time, and is no longer suitable as an industrial raw material. Combusting semi-coke is an important technical means for large-scale utilization of semi-coke. Under conventional combustion methods, semi-coke has significant problems such as: (1) difficulty in ignition; (2) low burnout rate; (3) h...

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): F23C1/12F23C9/06F23D17/00F23J15/00F23L15/00F23L5/00F23C3/00F23C7/02
CPCY02E20/34
Inventor 李鹏飞李文浩王凯胡帆郭军军汪国庆景旭亮米建春柳朝晖郑楚光
Owner HUAZHONG UNIV OF SCI & TECH
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