Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A process and system for mixing coal slime with a large proportion of pulverized coal furnace

A pulverized coal furnace and a large-scale technology, which is applied in the field of solid waste disposal, can solve the problems affecting the popularization and application of the technology of mixing coal slime with pulverized coal furnace, the inability to achieve large-scale blending, and the low proportion of coal slime blending, etc. Eliminate system blockage problems, save boiler coal resources, save energy and reduce emissions.

Active Publication Date: 2018-08-17
光大清洁技术股份有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, due to the immature technology of blending coal slime in pulverized coal furnaces, the proportion of coal slime blending is low, only about 10%, and a large proportion of blending cannot be achieved, and the coal slime needs to be dried and aired separately, and the production efficiency is low.
It affects the popularization and application of pulverized coal furnace mixed coal slime technology

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 process and system for mixing coal slime with a large proportion of pulverized coal furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The best embodiments of the present invention will be described below with reference to the accompanying drawings through preferred embodiments. The specific embodiments here are to describe the present invention in detail, and should not be understood as limiting the present invention, without departing from the spirit and essence of the present invention. In the case of the scope, various deformations and modifications can be made, and these should be included in the protection scope of the present invention.

[0024] The present invention provides a large-scale mixed coal slime combustion process in a pulverized coal furnace, which includes a slime pretreatment step, which removes impurities, crushes, and prepares the slime so that it has the characteristics of pumping; the slime pumping step adopts the paste The positive pressure feeding and pumping equipment is used to transport the slime paste to the coal mill through the pipeline. The slime pulverizing step uses the ...

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 provides a process and a system for mixed burning of coal slime in big proportion in a coal-powder boiler. The process comprises the following steps that coal slime is pre-treated, that is, the coal slime is subjected to impurity removal, crushing and paste manufacturing, so that the coal slime is suitable for pumping; the coal slime is pumped, that is, coal slime paste is hermetically transported in a coal slime powdering unit through a pipeline; the coal slime is powdered, that is, the air inlet temperature of a coal mill is increased and the air volume is increased by adopting a fuel gas heating or high-temperature steam heat exchanging method, and coal slime powder meeting the burning requirement is obtained; and the coal slime powder is fed in the coal-powder boiler in a gradient manner for burning, that is, the coal slime powder is fed in the coal-powder boiler in a gradient and layered manner for burning. The process and the system realize mixed burning of coal slime in big proportion, the operation stability and reliability of the system are improved, the fire coal resources in the boiler are saved, the effects of energy conservation and emission reduction are remarkable, and the pollution of wastes on the environment is eliminated.

Description

Technical field [0001] The invention relates to the technical field of solid waste disposal, in particular to a process and system for mixing coal slime in a pulverized coal furnace. Background technique [0002] my country is the world's largest coal producer and coal consumer. For a long time, China's coal accounted for more than 75% of the energy composition. 80% of China’s coal resource consumption is used for direct combustion, and more than 70% of the smoke and dust emitted into the atmosphere by Chinese cities and SO 2 90% of the total amount comes directly from burning coal, and direct combustion of a large amount of coal has become the main source of air pollution. Making raw coal into a clean fuel through coal washing is an important technical measure to improve coal quality, increase coal combustion efficiency, and reduce air pollution. [0003] Coal slime is a by-product produced in the coal washing process. Coal slime contains a large number of combustible component...

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
Patent Type & Authority Patents(China)
IPC IPC(8): F23K1/00F23K3/00
CPCF23K1/00F23K3/00F23K2201/10F23K2201/30F23K2201/503
Inventor 景武郭满志孙浩蒋珂吴淼昌永辉刘清平郭林李刚
Owner 光大清洁技术股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products