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

Special carbon and graphite composite structure cathode carbon block of aluminum electrolytic cell

A cathode carbon block and aluminum electrolytic cell technology, which is applied in the field of graphite carbon composite structure cathode carbon blocks for aluminum electrolytic cells, can solve the problems of easy burning and damage of cathode steel rods, structural cost, high resistance value, low electrical conductivity, etc.

Inactive Publication Date: 2010-11-10
高德金
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the disadvantages of the current general-purpose aluminum electrolytic cell cathode conductor cathode steel rod group, such as low conduction efficiency, large resistance value, easy burning of the cathode steel rod, and high construction cost, the invention provides a new type of special graphite for aluminum electrolytic cell Carbon composite structure cathode carbon block design and construction scheme

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
  • Special carbon and graphite composite structure cathode carbon block of aluminum electrolytic cell
  • Special carbon and graphite composite structure cathode carbon block of aluminum electrolytic cell
  • Special carbon and graphite composite structure cathode carbon block of aluminum electrolytic cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: use graphite electrode (1) as the conductive material parts along the length direction of the cathode carbon block, build in the bottom of the cathode conductor, for conducting the horizontal current of the cathode carbon block elongation direction, the upper surface of the graphite electrode adopts etc. Slope design, from the DC input end to the output end slope downward; the upper part of the graphite electrode is determined by the resistivity ρ 2 Higher than graphite electrode resistivity ρ 1 The voltage-adjusting carbon layer (2) made of carbon, graphite or carbon-titanium boride material is constructed on the upper part of the graphite electrode (1) by high temperature resistant bonding conductive adhesive (3), and the upper part of the resistance carbon layer The surface is a horizontal structure. According to the inverse relationship between the material resistivity of Ohm's law and the length of the conductor, the structural size of the cathode car...

Embodiment 2

[0030] Embodiment 2: (as image 3 , Figure 4 Shown) On the basis of embodiment 1, the basic shape of the graphite electrode (1) of the cathode carbon block graphite electrode (1) of aluminum electrolytic cell special-purpose graphite carbon composite structure remains unchanged, and the voltage adjustment carbon layer (2) adopts graphite carbon-titanium boride mixed The material tamping structure is on the upper part of the graphite electrode (1), which is used to increase the voltage on the upper part of the cathode carbon block and adjust the impact resistance and sodium corrosion resistance of the carbon layer (2). The side and bottom are made of ordinary high-resistance carbon The tamping paste is used to tamp the layer to improve the electrical conductivity of the upper part of the cathode carbon block.

Embodiment 3

[0031] Embodiment 3: (as shown in Figure 5, Figure 6 As shown) the graphite electrode (1) of the cathode carbon block with graphite-carbon composite structure for aluminum electrolytic cells is structured as a conical frustum, and its cross-section changes with equal slopes along the length of the cathode carbon block, and its conductive cross-section gradually moves inward from the end increase. The outer diameter of the carbon layer (2) is adjusted by the voltage outside the graphite electrode (1), and the structure of the cathode carbon block is determined according to the proportional relationship between the material resistivity ρ, the conductive section S and the conductor length L according to Ohm's law Dimensions, manufacturing a graphite-carbon composite structure cathode carbon block dedicated to aluminum electrolytic cells with the equivalent value of the voltage drop V from the external surface of the cathode carbon block to the metal conductive connector at the e...

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 relates to a special carbon and graphite composite structure cathode carbon block of an aluminum electrolytic cell. The cathode carbon block cancels the original cathode carbon block steel bar bank, the steel bar grooves on the bottom of the cathode carbon block along the length direction of the cathode carbon block and the cathode steel bars in the grooves; the end or angle place of the graphite electrode is provided with a conductive metal connection part; a voltage-regulating carbon layer using carbon and graphite material and TiB2 / C material as main materials is constructed on the upper part and outer surface of the graphite electrode part; and the operating conditions of the aluminum electrolytic cell are combined with the Ohm's Law to perform function optimization and combination design to two parts with different resistance values so as to construct the special carbon and graphite composite structure cathode carbon block used in the cathode conductive structure of the aluminum electrolytic cell. The invention is characterized by high conduction efficiency, low resistance value, electrolytic corrosion resistance, low heat stress, less heat loss, easy realization of heat balance, low comprehensive cost and the like and lays the technical and economic foundation of the energy saving design of the electrolytic cell.

Description

Technical field: [0001] The graphite-carbon composite structure cathode carbon block for aluminum electrolytic cell is mainly used in the masonry of the cathode lining of the aluminum electrolytic cell, and its main function is to conduct the cathode current of the molten aluminum in the molten pool of the aluminum electrolytic cell. technical background: [0002] The current general-purpose aluminum electrolytic cell cathode conductive structure is composed of cathode carbon block, cathode steel rod and tamping paste. In order to adjust the horizontal distribution of current and make the high DC current density distribution on the upper surface of the cathode carbon block uniform, the method is The bottom of the cathode carbon block is grooved along the length direction, and the metal material cathode steel rod with better conductivity is tamped and constructed in the ∏ groove at the bottom of the cathode with a tamping paste. This cathode conductive structure has the follo...

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): C25C3/08
Inventor 高德金高伟
Owner 高德金
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com