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

Efficient preheating and pre-reduction device used for iron ore powder production and preparation

A high-efficiency technology for iron ore powder, applied in the field of high-efficiency preheating and pre-reduction devices for iron ore powder production and preparation, can solve the problems of unfavorable later use, the influence of high-efficiency preheating and pre-reduction of iron ore powder, high density separation efficiency, etc. Efficient preheating, easy to be heated evenly

Inactive Publication Date: 2020-09-18
大冶市都鑫摩擦粉体有限公司
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Fluidized bed preheating and prereduction technology is used in the first generation ironmaking process, which adopts the fluidized bed technology combined with circulating fluidized bed and annular fluidized bed, which can preheat ore powder to above 700°C, and the reaction gas is The high-temperature coal gas of the melting furnace with a temperature of 1000 ℃, and the use of suspension preheating technology to process ultra-fine iron ore powder, due to the large density of iron ore powder, the decline in the separation efficiency of the cyclone, and the difference in the powder gas-solid mass transfer and heat transfer process, there are great differences, and This technology has not been used in the smelting reduction ironmaking process, and the connection with other systems of the process and the consistency of material flow, energy flow, and information flow will all have major changes. When the reduction device is in use, when the material is added with new materials and ingredients, the material will directly enter the next link during the grinding process, which will affect the efficient preheating and pre-reduction of iron ore powder, and it will not be used later.

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
  • Efficient preheating and pre-reduction device used for iron ore powder production and preparation
  • Efficient preheating and pre-reduction device used for iron ore powder production and preparation
  • Efficient preheating and pre-reduction device used for iron ore powder production and preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] see Figure 1-4 , the present invention provides a technical solution: a high-efficiency preheating and pre-reduction device for iron ore powder production and preparation, comprising a bottom plate 1, a support column 2 is fixedly connected to the bottom of the bottom plate 1, and a kettle body 3 is fixedly connected to the upper surface of the bottom plate 1 , the upper surface of the kettle body 3 is fixedly connected with a feed funnel 4, the inner ...

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 an efficient preheating and pre-reduction device used for iron ore powder production and preparation. The efficient preheating and pre-reduction device comprises a bottom plate, wherein the bottom of the bottom plate is fixedly connected with supporting columns; the upper surface of the bottom plate is fixedly connected with a kettle body; the upper surface of the kettle body is fixedly connected with a feeding funnel; the inner wall of the kettle body is fixedly connected with a supporting plate; and the upper surface of the supporting plate is provided with conical holes. According to the efficient preheating and pre-reduction device used for the iron ore powder production and preparation, through the feeding hopper, the supporting plate and the conical holes, materials can conveniently intensively flow into a grinding disc and a filtering plate, then, an electric motor is started to drive a transmission rod and the grinding disc to rotate to grind irregular broken stone on the surface of the filtering plate, so that iron ore powders which fall to a filtering net from the surface of the filtering plate can be subjected to secondary filtering, unqualified iron ore powders are conveyed to the feeding hopper on the surface of the kettle body through a first elevator and are processed in the kettle body again, and therefore, the iron ore powder productionand preparation has a returned material processing effect.

Description

technical field [0001] The invention relates to the technical field of iron ore powder production, in particular to an efficient preheating and prereduction device for iron ore powder production and preparation. Background technique [0002] At present, in the smelting reduction ironmaking process, the preheating methods of iron ore powder that have been industrialized are mainly fluidized bed preheating and pre-reduction and rotary kiln preheating and pre-reduction. Through the preheating and pre-reduction of iron ore powder, the final The reaction furnace will greatly increase the reaction rate and thermal efficiency, which is the most effective way to increase production and efficiency and reduce the load on the final reactor. [0003] Fluidized bed preheating and prereduction technology is used in the first generation ironmaking process, which adopts the fluidized bed technology combined with circulating fluidized bed and annular fluidized bed, which can preheat ore powd...

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): C22B1/10C21B13/00
CPCC21B13/0033C22B1/10
Inventor 赵烈怡
Owner 大冶市都鑫摩擦粉体有限公司
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