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

Oxidized pellet preparation method and device

A technology for oxidizing pellets and preparation equipment, which is applied in the field of iron and steel metallurgy, and can solve the problem of high equipment cost

Active Publication Date: 2021-09-10
明光瑞尔竞达科技股份有限公司
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The embodiment of the present invention provides a method and device for preparing oxidized pellets to solve the problem in the prior art that the grates must be made of high-temperature-resistant special alloy steel and cause high equipment costs

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
  • Oxidized pellet preparation method and device
  • Oxidized pellet preparation method and device
  • Oxidized pellet preparation method and device

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] Such as figure 1 As shown, the embodiment of the present invention provides a method for preparing oxidized pellets, including:

[0023] S101, spreading the refractory heat storage balls on the trolley of the belt roaster to form a refractory heat storage ball layer;

[0024] S102, laying green balls on the refractory heat storage ball layer;

[0025] S103. Roasting the green balls on the refractory heat storage ball layer to generate oxidized pellets.

[0026] In the prior art, the oxidized pellets used as finished products are reused and laid on the belt roaster as bottom and edge materials to protect the grates from high temperature damage and prevent powder clogging And bonding grate bars and other purposes. However, due to the limited ability of the oxidized pellets to absorb heat, it is difficult to effectively reduce the temperature of the exhaust air after roasting. The grates still cannot be made of ordinary steel, and the strength of the oxidized pellets wi...

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 an oxidized pellet preparation method and device. The method comprises the steps that fire-resistant heat storage balls are laid on a trolley of a belt type roasting machine, and a fire-resistant heat storage ball layer is formed; green balls are laid on the fire-resistant heat storage ball layer; and the green pellets on the fire-resistant heat storage pellet layer are roasted, and oxidized pellets are generated. By means of the technical scheme, the fire-resistant heat storage balls absorb most of heat remaining in the roasting process, the temperature of roasting waste air passing through the fire-resistant heat storage ball layer is greatly reduced, and therefore high-temperature-resistant special alloy steel does not need to be used for manufacturing grate bars of the trolley, and the equipment investment cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgy, in particular to a method and device for preparing oxidized pellets. Background technique [0002] In the iron and steel and non-ferrous metal smelting industry, both sintering and pelletizing are methods of powder ore agglomeration, but their production processes and basic principles of agglomeration are quite different, and the effects of smelting on blast furnaces also have their own differences. features. Among them, because the pelletizing process is cleaner and more environmentally friendly than the sintering process, it meets the requirements of clean production and ultra-low emissions in the steel industry. Therefore, increasing the amount of pellets in the blast furnace charge has been included in the development plan of major steel companies. in progress. The most commonly used pellets are oxidized pellets, and the preparation of oxidized pellets includes two commonl...

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): C22B1/02
CPCC22B1/02
Inventor 王长春张世衡汪小龙梁晶晶
Owner 明光瑞尔竞达科技股份有限公司
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

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