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Special carbon electrode for smelting of titanium slag and preparation method thereof

A carbon electrode, titanium slag technology, applied in electric heating devices, electrical components, heating by discharge, etc., can solve the problems of threatening the life and national property safety of operators, high energy consumption of electrode paste, affecting people's health, etc. The effect of furnace power and electric furnace efficiency, shortening smelting time, and saving power consumption

Inactive Publication Date: 2012-01-25
JIZHOU CHANGAN ELECTRODE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large amount of coal tar pitch contained in the electrode paste, when sintered into electrodes, a large amount of asphalt fume will be generated, which will pollute the environment and seriously affect people's health
On the other hand, when the electrode paste is sintered into a self-baking electrode, a certain amount of heat is required, and electric energy is required to do work, which increases the power consumption by about 5% to 10%. In recent years, with the deepening of national energy conservation and emission reduction work, Enterprises with high energy consumption and high emissions will be gradually eliminated
The electrode paste is also included in the list of eliminated industries due to its high energy consumption and serious environmental pollution; moreover, due to careless operation, it will cause soft breakage and hard breakage of the electrode, which seriously threatens the lives of operators and national property. safety

Method used

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  • Special carbon electrode for smelting of titanium slag and preparation method thereof
  • Special carbon electrode for smelting of titanium slag and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The first step: medium crushing, sieving, grinding

[0032] The calcined solid raw material is crushed and sieved, part of the petroleum coke and graphite are crushed and sieved, and part is pulverized by a ball mill;

[0033] Step 2: Ingredients and Dry Blending

[0034] Use the electronic batching system to weigh out 16 parts by weight of crushed graphite with a particle size less than or equal to 4mm, 12 parts by weight of crushed graphite with a particle size greater than 4mm and less than or equal to 10mm, 8 parts by weight of crushed graphite with a particle size greater than 10mm and less than or equal to 16mm, and 4 parts by weight of crushed graphite Electric calcined coal with a diameter greater than or equal to 4mm and less than or equal to 10mm, and 24 parts by weight of petroleum coke with a particle diameter greater than or equal to 0.05mm and less than or equal to 0.075mm. Stir in the kneading pot, and the stirring time is 2 minutes;

[0035] Step Three...

Embodiment 2

[0044] The first step: medium crushing, sieving, grinding

[0045] The calcined solid raw material is crushed and sieved, part of the petroleum coke and graphite are crushed and sieved, and part is pulverized by a ball mill;

[0046] Step 2: Ingredients and Dry Blending

[0047]Use the electronic batching system to weigh out 20 parts by weight of crushed graphite with a particle size less than or equal to 4mm, 16 parts by weight of crushed graphite with a particle size greater than 4mm and less than or equal to 10mm, 11 parts by weight of crushed graphite with a particle size greater than 10mm and less than or equal to 16mm, and 7 parts by weight of crushed graphite Electric calcined coal with a diameter greater than or equal to 4mm and less than or equal to 10mm, and 28 parts by weight of petroleum coke with a particle diameter greater than or equal to 0.05mm and less than or equal to 0.075mm. Stir in the kneading pot, and the stirring time is 2.5 minutes;

[0048] Step Thr...

Embodiment 3

[0057] The first step: medium crushing, sieving, grinding

[0058] The calcined solid raw material is crushed and sieved, part of the petroleum coke and graphite are crushed and sieved, and part is pulverized by a ball mill;

[0059] Step 2: Ingredients and Dry Blending

[0060] Use the electronic batching system to weigh out 24 parts by weight of crushed graphite with a particle size less than or equal to 4mm, 20 parts by weight of crushed graphite with a particle size greater than 4mm and less than or equal to 10mm, 14 parts by weight of crushed graphite with a particle size greater than 10mm and less than or equal to 16mm, and 10 parts by weight of crushed graphite Electric calcined coal with a diameter greater than or equal to 4mm and less than or equal to 10mm, and 32 parts by weight of petroleum coke with a particle diameter greater than or equal to 0.05mm and less than or equal to 0.075mm. Stir in the kneading pot, and the stirring time is 3 minutes;

[0061] Step Thr...

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Abstract

The invention belongs to the technical field of carbon electrodes and discloses a special carbon electrode for smelting of titanium slag and a preparation method thereof. The preparation method is mainly technically characterized by screening solid raw materials comprising electrically calcined coal, petroleum coke and graphite scrap after calcination, proportioning the materials by an electronicproportioning system, then adding into a mixing and kneading pot, stirring and dry-mixing, then adding coal asphalt, mixing and kneading, and further molding, baking and machining for producing a special carbon electrode finished product for smelting of the titanium slag. The special carbon electrode for the smelting of the titanium slag has the advantages of no asphalt volatile matters, high volume density, low ash content and good oxidation resistance; and the the special carbon electrode is used for replacing a self-baking electrode, thus flue gas volatile matters emitted during baking is avoided, the power consumption during the baking process of the self-baking electrode is saved, energy conservation and environmental friendliness are realized, the installation is simple and convenient, the accidents of soft breakage and hard breakage of the electrode caused by careless operation are avoided, and the safety is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of carbon electrodes, and in particular relates to a special carbon electrode for smelting titanium slag and a preparation method thereof. Background technique [0002] At present, self-baking electrodes are generally used in the smelting and production of titanium slag, which are formed by heating and sintering the electrode paste during the use of the submerged arc furnace. In recent years, due to the promulgation of the national environmental protection policy and the strengthening of environmental protection management, there are particularly strict requirements on the emission of flue gas. Due to the large amount of coal tar pitch contained in the electrode paste, when sintered into electrodes, a large amount of pitch fume will be generated, which will pollute the environment and seriously affect people's health. On the other hand, when the electrode paste is sintered into a self-baking electrode, a ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B7/085C22B34/12H05B7/06
Inventor 李兰静周启王兴源戚志发马泓龙贾哲赵鹤超
Owner JIZHOU CHANGAN ELECTRODE