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

Coking coal blending method for preparing metallurgical coke by waste plastics

A technology of metallurgical coke and waste plastics, which is applied in the field of coking coal blending and coking coal blending in the production of metallurgical coke, which can solve the problems of poor coking performance and large proportion of use, so as to reduce the cost of coal blending, increase dependence, and alleviate the problem of white pollution Effect

Active Publication Date: 2020-09-15
ANGANG STEEL CO LTD
View PDF13 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a coking coal blending method in which waste plastics participate in the preparation of metallurgical coke. In the coal blending scheme, part of waste plastics and high-sulfur, high-deterioration and weakly cohesive coking coal are added. By making full use of waste plastics, low ash, low Sulfur and caking properties Solve the problem that high sulfur, high metamorphism and weak caking coking coal cannot be used in large proportion due to poor coking performance, optimize coal blending structure, reduce coal blending cost, and produce qualified metallurgical coke

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
  • Coking coal blending method for preparing metallurgical coke by waste plastics
  • Coking coal blending method for preparing metallurgical coke by waste plastics
  • Coking coal blending method for preparing metallurgical coke by waste plastics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1. According to the quality requirements of coke production, the customized coal blending plan is as follows: 1 / 3 coking coal: 15%, fat coal: 15%, coking coal: 30%, lean coking coal: 5%, high sulfur and high metamorphic degree weak caking coking coal 20 %; waste plastic: 15%. Mixed coal is formulated in proportion. The crushed fineness R of the mixed coal is 72%, the ash content is 9.74%, the sulfur content is 0.78%, the Gibsonian fluidity is 486ddpm, the average value of the maximum reflectance of vitrinite is 1.37%, and the active-inert ratio of coal rock reaches 3.55.

[0017] 2. Among them, the total mass proportion of weakly caking coal with high sulfur metamorphism degree and waste plastics is 35%, and the mass ratio of the amount of weakly caking coal with high sulfur metamorphism degree and waste plastics is 4 / 3.

[0018] 3. Among them, the ash content A of coking coal with high sulfur and high metamorphism degree and weak caking d 9.4%, Volatile V daf 18%,...

Embodiment 2

[0023] 1. According to the quality requirements of coke production, the customized coal blending plan is as follows: 1 / 3 coking coal: 12%, fat coal: 20%, coking coal: 35%, lean coking coal: 3%, high sulfur and high metamorphic degree weak caking coking coal 18 %; waste plastic: 12%. Mixed coal is formulated in proportion. The crushed fineness R of the mixed coal is 70.2%, the ash content is 9.65%, the sulfur content is 0.76%, the Kiwi fluidity is 512ddpm, the average value of the maximum reflectance of vitrinite is 1.35%, and the active-inert ratio of coal rock reaches 3.73.

[0024] 2. Among them, the total mass ratio of weakly caking coal with high sulfur metamorphism degree and waste plastics is 30%, and the mass ratio of the amount of weakly caking coal with high sulfur metamorphism degree and waste plastics is 3 / 2.

[0025] 3. Among them, the ash content A of coking coal with high sulfur and high metamorphism degree and weak caking d 9.4%, Volatile V daf 18%, Sulfur ...

Embodiment 3

[0030] 1. According to the quality requirements of coke production, the customized coal blending plan is as follows: 1 / 3 coking coal: 10%, fat coal: 10%, coking coal: 30%, lean coking coal: 5%, high sulfur and high metamorphic degree weak caking coking coal 25 %; waste plastic: 20%. Mixed coal is formulated in proportion. The crushed fineness R of the mixed coal is 70.2%, the ash content is 9.65%, the sulfur content is 0.76%, the Kiwi fluidity is 512ddpm, the average value of the maximum reflectance of vitrinite is 1.35%, and the active-inert ratio of coal rock reaches 3.73.

[0031] 2. Among them, the total mass of weakly caking coal with high sulfur metamorphism degree and waste plastics accounts for 30%, and the mass ratio of the amount of weakly caking coal with high sulfur metamorphism degree and waste plastics is 5 / 4.

[0032] 3. The crushing fineness of waste plastics is all below 5mm, and the mass percentage of fineness<2mm is 74%.

[0033] 4. Among them, the ash con...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
volatile matteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a coking coal blending method for preparing metallurgical coke with participation of waste plastics. The use amount ratio of the high-sulfur high-metamorphic-degree weakly-cohesive coking coal is increased through waste plastic by dosing a portion of the waste plastic, the qualified metallurgical coke is produced from the following blended coal components in percentage by mass: 6%-18% of 1 / 3 coking coal, 11%-27% of fat coal, 24%-40% of coking coal, 3%-18% of lean coking coal, 15%-25% of high-sulfur high-metamorphic-degree weakly-cohesive coal and 3%-25% of waste plastic. By fully utilizing the characteristics of low ash, low sulfur and cohesiveness of waste plastics, the problem that high-sulfur high-metamorphic-degree weakly-cohesive coking coal cannot be used in alarge proportion due to poor coking performance is solved, the coal blending structure is optimized, the coal blending cost is reduced, and qualified metallurgical coke is produced.

Description

technical field [0001] The invention belongs to the technical field of metallurgical raw materials and pretreatment, and relates to coking coal blending technology, in particular to a method of rationally controlling the coal blending scheme, adding waste plastics and low-cost high-sulfur, high-deterioration weakly cohesive coking coal to reduce the amount of main coking coal A coking coal blending method for the production of metallurgical coke. Background technique [0002] Coke, as a raw material for ironmaking in my country, will not change in recent decades. my country is rich in coal resources, but the regional distribution is very uneven, and the regional differences of coal types are also very large. There are many deficiencies in the coking of a single type of coal. In addition, with the development of the iron and steel industry, the amount of coal used is increasing year by year. In order to effectively and rationally utilize coal resources, solve the problems exi...

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 Applications(China)
IPC IPC(8): C10B57/04
CPCC10B57/04
Inventor 王超庞克亮谭啸甘秀石朱庆庙张军刘冬杰蔡秋野
Owner ANGANG STEEL CO LTD
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com