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A kind of electrode sealing paste and preparation method thereof

A closed paste and electrode technology, which is applied in the direction of cable/conductor manufacturing, circuits, electrical components, etc., can solve the problems of high resistivity, poor fluidity, and low strength of electrode paste, so as to reduce resistivity and improve product quality and strength , the effect of reducing the particle size of fine powder

Active Publication Date: 2019-08-02
ANHUI ZHENGXIBIAOWANG NEW ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the problems of low strength, high resistivity and poor fluidity of the traditional electrode paste, an electrode sealing paste and its preparation method are provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Take electroforged anthracite and put it into the jaw crusher for crushing, and sieve it into 0-4mm, 4-8mm, 8-12mm, 12-20mm, 20-35mm granular materials at all levels, take the anode residue and put it into the jaw crusher Crushing and sieving into 0-4mm, 4-8mm, 8-12mm, 12-20mm, 20-35mm granular materials at all levels, taking artificial graphite and putting it into a grinder to grind to 0.15mm, taking calcined petroleum coke and putting it into Grind in a grinder to 0.15mm, in parts by weight, 35 parts of electroforged anthracite, 24 parts of anode butt, 10 parts of artificial graphite, 18 parts of calcined petroleum coke, put into a mixer for dry material mixing, and stir at 110 ° C 20min, control particle size composition 20-30mm pellets accounted for 7% of the total weight, 12-20mm pellets accounted for 20% of the total weight, 8-12mm pellets accounted for 15% of the total weight, 4-8mm pellets accounted for the total weight 10%, 0-0.075mm pellets accounted for 32% o...

example 2

[0026] Take electroforged anthracite and put it into the jaw crusher for crushing, and sieve it into 0-4mm, 4-8mm, 8-12mm, 12-20mm, 20-35mm granular materials at all levels, take the anode residue and put it into the jaw crusher Crushed and sieved into 0~4mm, 4~8mm, 8~12mm, 12~20mm, 20~35mm granular materials at all levels, take artificial graphite and put it into a grinder to grind to 0.10mm, take calcined petroleum coke and put it into Grind to 0.10mm in a grinder, and in parts by weight, 30 parts of electroforged anthracite, 20 parts of anode butts, 5 parts of artificial graphite, and 15 parts of calcined petroleum coke are sent to a mixer for dry material stirring, at 105 °C Stir for 15 minutes, control the particle size composition of 20-30mm pellets accounted for 5% of the total weight, 12-20mm pellets accounted for 18% of the total weight, 8-12mm pellets accounted for 12% of the total weight, 4-8mm pellets accounted for the total Weight 8%, 0-0.075mm pellets accounted f...

example 3

[0028] Take electroforged anthracite and put it into the jaw crusher for crushing, and sieve it into 0-4mm, 4-8mm, 8-12mm, 12-20mm, 20-35mm granular materials at all levels, take the anode residue and put it into the jaw crusher Carry out crushing, and sieve into 0~4mm, 4~8mm, 8~12mm, 12~20mm, 20~35mm granular materials at all levels, take artificial graphite and put it into a grinder to grind to 0.08mm, take calcined petroleum coke and put it into Grind to 0.08mm in a grinder, and by weight parts, 32 parts of electroforged anthracite, 22 parts of anode butt, 7 parts of artificial graphite, and 17 parts of calcined petroleum coke are sent to the mixer for dry material stirring, at 107 ° C Stir for 17 minutes, control particle size composition 20-30mm pellets account for 6% of the total weight, 12-20mm pellets account for 19% of the total weight, 8-12mm pellets account for 13% of the total weight, and 4-8mm pellets account for the total weight Weight 7%, 0-0.075mm pellets accou...

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PUM

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Abstract

The invention relates to an electrode closed paste and a preparation method thereof, and belongs to the technical field of metallurgical engineering non-metallic materials. The electrode closed paste is prepared from electrically calcined anthracite, anode scraps, artificial graphite, calcined petroleum coke, medium temperature coal-tar pitch and waste oil. The electrode closed paste is prepared by the following steps: stirring and mixing dried raw materials, thereby obtaining a dried mixture; heating the medium temperature coal-tar pitch; after the medium temperature coal-tar pitch is completely molten, wet mixing the molten medium temperature coal-tar pitch with the dried mixture, and then adding heated waste oil to continue the wet mixing, thereby obtaining a paste material; and finally shaping the paste material, cooling the shaped paste material and then obtaining the electrode closed paste. According to the electrode closed paste and the preparation method thereof, the shock resistance and the oxidation resistance are improved via large grains, the particle size of the fine powder is reduced, the strength of the paste is improved by increasing the amount of formula, and the product quality and the strength of the electrode paste are improved by utilizing the anode scraps; meanwhile, the waste oil is excessively added, so that the viscosity of the medium temperature coal-tar pitch is reduced, the fluidity is improved, and an binding film is formed between aggregates and the powder; and by utilizing organic carbon impurities in the waste oil, a conductive network is formed when the aggregates and the powder are wetted, so that the resistivity is improved.

Description

technical field [0001] The invention relates to an electrode sealing paste and a preparation method thereof, belonging to the technical field of metallurgical engineering non-metallic materials. Background technique [0002] The electrode paste is used as the self-baking electrode of the submerged electric furnace for the production of calcium carbide, yellow phosphorus, and ferroalloys (ferrosilicon, ferromanganese, etc.), and is called the "heart" of the submerged electric furnace during the smelting process. Generally speaking, the power of small submerged arc furnaces is small, and most of them do not have furnace covers (commonly known as open furnaces). The electrode paste used in such furnaces is generally standard electrode paste. High-power submerged arc furnaces generally have furnace covers (commonly known as closed furnaces). This type of furnace requires the use of electrode paste with high performance indicators such as closed paste. Since the airtight paste s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/04H01B13/00
CPCH01B1/04H01B13/00
Inventor 张永华薛焱璟王之霖
Owner ANHUI ZHENGXIBIAOWANG NEW ENERGY CO LTD