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

Enhanced composite graphite electrode and manufacturing and using method thereof

A composite graphite and enhanced technology, applied in the direction of electric heating devices, electrical components, heating by discharge, etc., can solve the problems of product quality decline, furnace drop accidents, iron impurities increase, etc., to achieve improved compressive strength, process simplification, Effect of Electrode Weight Reduction

Active Publication Date: 2013-08-21
河北顺天电极有限公司
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The self-baking electrode is made by putting the electrode paste into the electrode shell welded with ordinary steel plates on the upper part of the submerged arc furnace, and using the Joule heat of the current passing through the electrode itself and the radiant heat of the electric furnace to melt and roast the electrode paste. Under the pressure of the paste column, the conductive electrode carbon block with a certain strength and shape after slow roasting in the smelting process, because it is used, formed and roasted at the same time, the forming and roasting process is omitted, the production process is simple, and the cost is low. Relatively low, only 0.3-0.5 yuan per ton, but its disadvantage is that the electrode shell is also integrated into the submerged arc furnace during the production process, resulting in a high iron content in the product, which is not suitable for smelting products that strictly control the content of iron impurities. product
[0003] CN02230874.1 discloses a graphite self-baking electrode shell, which is used to solve the technical problems that the iron impurities in the product increase and the product quality declines. However, if the electrode shell is made of traditional graphite material, it is easily affected by the expansion pressure and thermal stress of the electrode paste. Cracks occur, leading to furnace drop accidents

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
  • Enhanced composite graphite electrode and manufacturing and using method thereof
  • Enhanced composite graphite electrode and manufacturing and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1 Manufacturing method of enhanced composite graphite electrode shell

[0043] A method for making an enhanced composite graphite electrode shell is as follows:

[0044] Select the following components by weight percentage: 0.075-0.15mm calcined petroleum coke powder 23%,

[0045] 0.5~15mm carbon fiber 5%, 0.5~4mm calcined petroleum coke 25%, 4~10mm calcined petroleum coke 14%, 10~16mm calcined petroleum coke 13%, medium temperature coal tar pitch 20%, the above raw material components are kneaded, After forming, roasting, and graphitization, mechanical processing is carried out to form an electrode shell 1 with internal threads 2 and external threads 3 at both ends. The diameter of the inner cavity of the electrode shell is 600 mm, and the thickness of the graphite electrode shell is 300 mm.

Embodiment 2

[0046] Example 2 Method of using enhanced composite graphite electrode shell (preparation method of enhanced composite graphite electrode)

[0047] When in use, 10 reinforced composite graphite electrode shells obtained in Example 1 are connected into cylindrical electrode shell connectors through the internal threads 2 and external threads 3 arranged at both ends, and the obtained electrode shell connectors are put into In the copper tile, the copper tile is energized; the electrode paste is added into the cavity, and the electrode paste is gradually melted and sintered into a self-baking electrode 4 to form a composite electrode assembly (that is, an enhanced composite graphite electrode), and the resulting composite electrode assembly is put down together Press and release, and send it to the bottom of the furnace shell for energization and work.

[0048] Of course, when in use, each submerged arc furnace uses the enhanced composite electrode, and 3-6 electrode columns a...

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
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to an enhanced composite graphite electrode and a manufacturing and using method of the enhanced composite graphite electrode. Due to the fact that an electrode shell comprises carbon fibers, the compressive strength of an outer shell is doubled, and the outer shell does not generate cracks caused by heat stress. By using the principle of surficial skin effect of a current conductor, the enhanced composite graphite electrode is good in electrode conductivity, can reduce energy consumption, and reduce manufacturing cost, and is simple in structure, convenient, and safe and reliable in operation.

Description

technical field [0001] The invention relates to a reinforced composite graphite electrode and a method for making and using the same. Background technique [0002] The self-baking electrode is made by putting the electrode paste into the electrode shell welded with ordinary steel plates on the upper part of the submerged arc furnace, and using the Joule heat of the current passing through the electrode itself and the radiant heat of the electric furnace to melt and roast the electrode paste. Under the pressure of the paste column, the conductive electrode carbon block with a certain strength and shape after slow roasting in the smelting process, because it is used, formed and roasted at the same time, the forming and roasting process is omitted, the production process is simple, and the cost is low. Relatively low, only 0.3-0.5 yuan per ton, but its disadvantage is that the electrode shell is also integrated into the submerged arc furnace during the production process, resul...

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): H05B7/06
Inventor 王金铎杨海春陶国新王金秀唐济革邵河
Owner 河北顺天电极有限公司
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