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

Green regeneration method of electrolytic aluminum waste tank lining mixture

A waste tank lining and mixed material technology, applied in solid separation, grain treatment, flotation, etc., can solve the problem that does not involve the treatment of carbon blocks and refractory bricks in waste carbon cathodes, which is not conducive to cathode carbon blocks and refractory materials Separate recycling, environmental issues and other issues to achieve the effect of green and efficient recycling, convenient use of points, and easy operation

Active Publication Date: 2021-05-07
KUNMING UNIV OF SCI & TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is not dealt with in time, the existing production cannot be carried out, and it will cause extremely serious environmental problems
At the same time, the waste cathode carbon material and refractory material in the waste tank lining mixture have sticky parts, which are difficult to separate, which is not conducive to the separate recycling of cathode carbon blocks and refractory materials.
[0004] In the prior art, the clean production process of electrolytic aluminum proposes to classify and recycle the waste generated in the electrolytic aluminum process, to use carbon-containing cathodes as fuel for combustion or pre-baking, or for high-temperature continuous treatment of waste electrolytic aluminum cathodes method, or use the waste cathode of electrolytic aluminum to make carbon powder, but none of them involves the treatment method of the adhesion part of the carbon block and the refractory brick in the waste carbon cathode

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
  • Green regeneration method of electrolytic aluminum waste tank lining mixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: A kind of green regeneration method of electrolytic aluminum scrap liner mixture (see figure 1 ),Specific steps are as follows:

[0019] (1) chopping and sieving the electrolytic aluminum waste tank lining mixture to obtain carbon material-refractory mixed particles with a particle size of 3-6mm and carbon material-refractory mixed powder with a particle size less than 3mm;

[0020] (2) Carry out color sorting and sorting to step (1) carbon material-refractory material mixed particles to obtain carbon material particles, refractory material particles and carbon material-refractory material sticking particles; wherein the color selection adopts a photoelectric color sorter, and the color sorting The air pressure is 0.4Mpa, the feed rate is 80%; the sensitivity is 220; the background plate is set to 500; the color difference type is white / black; the RGB pixel ranges of carbon materials are 70, 70, and 80; the RGB pixel ranges of refractory materials are 120 ...

Embodiment 2

[0022] Embodiment 2: A kind of green regeneration method of electrolytic aluminum waste tank liner mixture (see figure 1 ),Specific steps are as follows:

[0023] (1) chopping and sieving the electrolytic aluminum waste tank lining mixture to obtain carbon material-refractory mixed particles with a particle size of 3-10mm and carbon material-refractory mixed powder with a particle size less than 3mm;

[0024] (2) Carry out color sorting and sorting to step (1) carbon material-refractory material mixed particles to obtain carbon material particles, refractory material particles and carbon material-refractory material sticking particles; wherein the color selection adopts a photoelectric color sorter, and the color sorting The air pressure is 0.1Mpa, the feeding amount is 30%; the sensitivity is 160; the background plate is set to 400; the color difference type is white / black; the carbon material RGB pixel range is 40, 50, 55 respectively; the refractory material RGB pixel range...

Embodiment 3

[0026] Embodiment 3: A kind of green regeneration method of electrolytic aluminum waste tank liner mixture (see figure 1 ),Specific steps are as follows:

[0027] (1) chopping and sieving the electrolytic aluminum waste tank lining mixture to obtain carbon material-refractory mixed particles with a particle size of 3-8mm and carbon material-refractory mixed powder with a particle size less than 3mm;

[0028] (2) Carry out color sorting and sorting to step (1) carbon material-refractory material mixed particles to obtain carbon material particles, refractory material particles and carbon material-refractory material sticking particles; wherein the color selection adopts a photoelectric color sorter, and the color sorting The air pressure is 0.3Mpa, the feeding amount is 50%; the sensitivity is 200; the background plate is set to 450; the color difference type is white / black; the RGB pixel range of carbon material is 50, 60, 70 respectively; the RGB pixel range of refractory mat...

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
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
heating valueaaaaaaaaaa
Login to View More

Abstract

The invention relates to a green regeneration method of an electrolytic aluminum waste tank lining mixture, and belongs to the technical field of environmental protection of solid waste comprehensive treatment. The green regeneration method comprises the following steps that the electrolytic aluminum waste tank lining mixture is chopped and screened to obtain carbon material-refractory material mixed particles and carbon material-refractory material mixed powder, and color sorting is carried out on the carbon material-refractory material mixed particles to obtain carbon material particles, refractory material particles and carbon material-refractory material adhesion particles; and the carbon material-refractory material adhesion particles are ground and uniformly mixed with the carbon material-refractory material mixed powder, and flotation separation is carried out to obtain carbon material powder and refractory material powder. The green regeneration method is suitable for industrial cleaning treatment of the aluminum electrolysis waste tank lining mixture.

Description

technical field [0001] The invention relates to a green recycling method for electrolytic aluminum waste tank lining mixture, which belongs to the environmental protection technical field of solid waste comprehensive treatment. Background technique [0002] The modern electrolytic aluminum industry uses cryolite-alumina molten salt electrolysis. In the electrolysis process, the carbon body is used as the anode, and the aluminum liquid is used as the cathode. After passing through a strong direct current, the electrochemical reaction is carried out on the two electrodes in the electrolytic cell at 950°C-970°C. In the electrolysis process, the quality of the cathode carbon lining is the key, and the carbon block material is poor, which can easily cause the electrolyte to penetrate into the electrolytic cell lining, causing the cathode carbon block and the electrolytic cell lining to be eroded, and the stress generated during the erosion process Can cause deformation of the el...

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): B02C19/00B02C23/16B03D1/001B07C5/342B03D101/02B03D101/04
CPCB02C19/00B02C23/16B07C5/3425B03D1/001B03D2201/02B03D2201/04
Inventor 马文会魏奎先谭宁
Owner KUNMING UNIV OF SCI & TECH
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