Method for producing high-quality metallurgical coke by using coal and rock indexes

A metallurgical coke, high-quality technology, applied in coke ovens, petroleum industry and other directions, can solve the problems of high proportion of fat coal and coking coal, difficulty in ensuring the quality of metallurgical coke, different degrees of coal mixing, etc. Reduced resource consumption, easy-to-apply effects

Inactive Publication Date: 2015-05-06
ANHUI UNIVERSITY OF TECHNOLOGY
View PDF11 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For the production of high-quality metallurgical coke under the top-loading coal coking process, the proportion of fat coal and coking coal needs to be increased. In actual production, sometimes fat coal and coking coal are mixed, and different batches of incoming coa

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 high-quality metallurgical coke by using coal and rock indexes
  • Method for producing high-quality metallurgical coke by using coal and rock indexes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention is described in detail below in conjunction with specific embodiments, but the present invention is not limited to the following embodiments.

[0020] A 6m coke oven is used for coking, the coking time is 20h, and the coke is quenched by dry method. There are six types of coking coal used, namely gas coal, 1 / 3 coking coal, gas fat coal, fat coal, coking coal and lean coal. Gas coal comes from Shandong Zaozhuang Mining Bureau and Xinwen Mining Bureau, 1 / 3 coking coal comes from Henan Pingmei Group, gas-fertilized coal comes from Shandong Xinwen Mining Bureau, fat coal Shandong Zaozhuang Mining Bureau, coking coal comes from Shanxi Coking Coal Group, Lean coal comes from Anhui Huaibei Mining Bureau.

[0021] Firstly, conduct a comprehensive quality analysis of coking coal; secondly, set 13 coal blending schemes for these coal types in different proportions, and choose 1 / 3 of coking coal or gas coal at 22% to 25% for each scheme, and gas-fertilized c...

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 method for producing high-quality metallurgical coke by using coal and rock indexes, and belongs to the technical field of blended coal for coking. According to the method, the target of producing high-strength metallurgical coke is achieved by controlling the distribution ranges of volatile index Vdaf, the caking index G, the maximal gelatinous layer thickness Y and the vitrinite mean maximum reflectance Rmax (0.9%-1.5%). According to the method, the feeding ratios of fat coal and coking coal can be reduced to about 50%; the heat intensity CSR of the coke is over 65%; and the requirements of over 2500m<3> blast furnace ironmaking are met.

Description

technical field [0001] The invention belongs to the technical field of coking coal blending, and in particular relates to a coking coal blending method for producing high-quality metallurgical coke with coal rock indicators. The invention solves the problem that coal blending and coking under the guidance of coal petrology theory is difficult to operate in production, and the advantages of coal blending and coking under the guidance of coal petrology cannot be brought into play. Background technique [0002] Although my country's coal resources are relatively rich, coking coal only accounts for all coal resources. However, the proportion of coking coal and fat coal that needs to be mixed in the production of metallurgical coke usually exceeds 50%. With the large-scale blast furnaces, large-volume blast furnaces have higher requirements on the quality of metallurgical coke. Since many coking coal blending companies still use experience to blend 29% of the coal, and the indisp...

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): C10B57/04
CPCC10B57/04
Inventor 张代林王坤张小勇郑明东
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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