System and method for producing fully-graphitized carbon product through waste cathode carbon blocks of electrolyzed aluminum

A technology for waste cathode carbon blocks and carbon products is applied in the field of aluminum electrolysis waste recycling, which can solve the problems of high processing cost and low economic added value of products, and achieves improving the degree of graphitization, increasing additional economic benefits, and reducing ash content. Effect

Active Publication Date: 2015-12-09
ZHENGZHOU JINGWEI TECH & IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For a long time, many countries in the world have done a lot of research on the treatment methods of spent cathode carbon blocks, including roasting method, flotation method and sulfuric acid decom

Method used

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Examples

Experimental program
Comparison scheme
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Example Embodiment

[0029] Embodiment 1: A system for producing fully graphitized carbon products using electrolytic aluminum waste cathode carbon blocks, including a crushing unit, a weighing and feeding unit, a calcination unit, a cooling unit, a packaging unit, an exhaust gas treatment unit, and a dust collection unit; The crushing unit includes a raw material warehouse 1, a jaw crusher 2 arranged at the discharge port of the lower part of the raw material warehouse 1, a fine crusher 3 arranged at the discharge port of the jaw crusher 2.

[0030] The weighing and feeding unit includes the No. 1 bucket elevator 4, the intermediate silo 5, the belt scale 6, the No. 2 bucket elevator 8 and the chain conveyor 9, and the feeding port and the fine crushing of the No. 1 bucket elevator 4 The discharge port of the machine 3 is set correspondingly, the discharge port of the No. 1 bucket elevator 4 corresponds to the input port of the intermediate silo 5, and one end of the belt scale 6 is set below the discha

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Abstract

The invention discloses a system and method for producing a fully-graphitized carbon product through waste cathode carbon blocks of electrolyzed aluminum. The system and method are high in recovery and utilization rate, high in economic value added, safe and environmental friendly. The system comprises a crushing unit, a weighting and feeding unit, a roasting unit, a cooling unit, a packing unit, a waste gas treating unit and a dust collecting unit. According to the system and method, the waste cathode carbon blocks are utilized to produce the fully-graphitized carbon product; the waste cathode carbon blocks are roasted at high temperature through a high-temperature furnace, thus cyanides in the waste cathode carbon blocks can be decomposed and volatilized, fluorides enters the exhaust gas in a steam form, and as a result, the ash contents in the waste cathode carbon blocks can be effectively reduced, the graphitizing degree can be increased to be more than 99%, and the waste cathode carbon blocks can be directly sold as the fully-graphitized carbon product. The system and method are high in degree of automation, easy to operate, safe and environmental friendly; the treatment efficiency of the waste cathode carbon blocks and the resource recovery and utilization rate can be effectively improved, the operation cost of an enterprise can be decreased, and the economic benefit of the enterprise can be increased.

Description

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Claims

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Application Information

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Owner ZHENGZHOU JINGWEI TECH & IND
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