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Method for antioxidation treatment of conducting rod in lead electrolysis system

A conductive rod, lead electrolysis technology, applied in the electrolysis process, electrolysis components and other directions, can solve the problems of volatilization and lack of anti-oxidation, and achieve the effects of convenient and fast operation, long-lasting anti-oxidation time, good feasibility and economic benefits

Active Publication Date: 2014-08-27
CHENZHOU CITY JINGUI SILVER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Applying a layer of glycerin on its surface will also volatilize with high temperature and fail to achieve the effect of anti-oxidation

Method used

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  • Method for antioxidation treatment of conducting rod in lead electrolysis system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Step 1: Put 350 conductive rods into the light rod machine bucket, first add 1kg of dilute sulfuric acid with a concentration of 10% and mix with the conductive rods. Then add 7kg of fresh rice husk, and turn the light rod machine to make the conductive rod and rice husk scrub each other;

[0015] Step 2: After turning for 15 minutes, sift out the chaff. Then add 1kg of dilute sulfuric acid with a concentration of 10% for secondary pickling, and finally clean it with water and dry it quickly. The bending should be straightened or replaced;

[0016] Step 3: When casting into an anode piece, apply a uniform and thin anti-oxidation protective film on the surface of the conductive rod.

[0017] After an electrolysis cycle observation, the comparison results of the contact point voltage drop measurement between the normal production tank and the anti-oxidant electrolytic tank are as follows:

[0018] Contact point voltage drop measurement results compari...

Embodiment 2

[0021] Step 1: Put 350 conductive rods into the light rod machine bucket, first add 1kg of dilute sulfuric acid with a concentration of 15% and mix with the conductive rods. Then add 8kg / time of fresh rough rice husk, and turn the light rod machine to make the conductive rod and rice husk scrub each other;

[0022] Step 2: After turning for 15 minutes, sift out the chaff. Then add 1kg of dilute sulfuric acid with a concentration of 15% for secondary pickling, and finally clean it with water and dry it quickly. The bending should be straightened or replaced;

[0023] Step 3: When casting into an anode piece, apply a uniform and thin anti-oxidation protective film on the surface of the conductive rod.

[0024] After an electrolysis cycle observation, the comparison results of the contact point voltage drop measurement between the normal production tank and the anti-oxidant electrolytic tank are as follows:

[0025] Contact point voltage drop measurement resu...

Embodiment 3

[0028] Step 1: Put 350 conductive rods into the light rod machine bucket, first add 1.5kg / time of 20% dilute sulfuric acid and mix with the conductive rods. Then add 10kg of fresh rice husk, and turn the light rod machine to make the conductive rod and rice husk scrub each other;

[0029] Step 2: After turning for 20 minutes, sift out the chaff. Then add 1.5kg of dilute sulfuric acid with a concentration of 20% for secondary pickling, and finally clean it with water and dry it quickly. The bending should be straightened or replaced;

[0030] Step 3: When casting into an anode piece, apply a uniform and thin anti-oxidation protective film on the surface of the conductive rod.

[0031] After an electrolysis cycle observation, the comparison results of the contact point voltage drop measurement of the normal production tank and the anti-oxidant electrolytic tank are as follows:

[0032] Contact point voltage drop measurement results comparison mV

[0033] ...

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Abstract

The invention relates to the technical field of non-ferrous metal metallurgy and in particular relates to a method for antioxidation treatment of a conducting rod in a lead electrolysis system. The method comprises the following steps: putting the conducting rod into an optical rod machine hopper, and adding 10%-25% dilute sulfuric acid and fresh rice coarse husks for performing acid washing; after the acid washing is ended, screening out the rice husks, performing secondary acid washing by using dilute sulfuric acid, and finally cleaning by using water; when an anode strip is cast, coating the surface of the anode strip with a layer of proper antioxidant to form a uniform protection film on the surface. According to the method, the antioxidation time is long, the cost is low, the conducting performance cannot be influenced, the problem of easy oxidation and electrochemical corrosion in an electrolysis process of the conducting rod is solved, the contact voltage during later period of electrolysis is reduced, and the economic benefit is remarkable.

Description

technical field [0001] The invention relates to a method for anti-oxidation treatment of conductive rods in a lead electrolysis system, belonging to the technical field of nonferrous metal smelting. Background technique [0002] At present, saving energy, reducing energy consumption, clean production, and building energy-saving and environment-friendly enterprises have become the general trend of the non-ferrous metal smelting industry. In the lead-zinc smelting industry, the cell voltage is a very important technical and economic index in the lead electrolysis system, and its level directly affects the quality of cathode lead and the unit consumption index of direct current. During the production process, the cell voltage fluctuates between 0.3 and 0.6V with the change of technical conditions, mainly distributed in the voltage drop of the electrolyte, the voltage drop of each contact point, the voltage drop of the conductor, and the extreme difference between the anode slim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G3/00C23F11/14C25C7/06
Inventor 柴承平谢兆凤刘万里覃小龙
Owner CHENZHOU CITY JINGUI SILVER IND CO LTD