Reinforced environment-friendly carbon electrode and preparation method thereof

A carbon electrode, an environmentally friendly technology, applied in the field of carbon electrodes, can solve the problems of insufficient utilization of waste carbon fibers, pollute the environment, pollute the atmosphere, etc., achieve the effects of performance indicators and quality improvement, energy saving, and coal saving

Active Publication Date: 2014-04-30
CHONGQING EASTSTAR HIGH TEMPERATURE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Direct incineration not only pollutes the atmosphere, but also causes harm to the human body
Therefore, regardless of the treatment method, not only the waste carbon fiber cannot be fully utilized, but also pollute the environment through incineration and produce harmful gases to the human body.

Method used

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  • Reinforced environment-friendly carbon electrode and preparation method thereof
  • Reinforced environment-friendly carbon electrode and preparation method thereof
  • Reinforced environment-friendly carbon electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] Enhanced preparation of environmentally friendly carbon electrodes

[0032] Feeding formula:

[0033]

[0034] Preparation Process:

[0035] (1) Preparation of raw electrode products: crush the electric calcined coal into particles with a particle size of 4mm to 16mm, crush the bulk graphite material, and sieve it into specified large, medium and small particles of different specifications, and enter the automatic batching system For batching, take the specified (recipe amount) dry material amount, convey it into the upper layer of the double-layer kneading pot by a screw, carry out heat treatment on the dry material, heat it to 150-185°C, and keep it for 20 minutes to obtain the dry material; The back coke is crushed into a powder with a particle size of 0.05mm to 0.075mm, put into the lower kneading pot together with coal tar pitch and mixed for 20 minutes, and the temperature is controlled at 140-160°C to obtain the rubber compound; the dry powder prepared in the...

Embodiment 2～6

[0040] Enhanced environment-friendly carbon electrode, the formula is shown in Table 1.

[0041] Table 1 Embodiment 2~6 strengthens the formula of environment-friendly type carbon electrode

[0042]

[0043] Preparation Process:

[0044] (1) Preparation of raw electrode products: crush the electric calcined coal into particles with a particle size of 4mm to 16mm, crush the bulk graphite material, and sieve it into specified large, medium and small particles of different specifications, and enter the automatic batching system Carry out batching, weigh the amount of dry material specified (recipe amount), convey it into the upper layer of the double-layer kneading pot by a screw, carry out dry material heat treatment, heat to 150~185 ℃, keep 15-25 minutes (wherein, embodiment 2 -4 is 20 minutes, Example 5 is 15 minutes, and Example 6 is 25 minutes), to obtain a dry material; crush the calcined coke into a powder with a particle size of 0.05mm to 0.075mm, and put it into the ...

Embodiment 7

[0048] Embodiment 7 index test

[0049] The corresponding product quality indicators of the carbon electrodes of Examples 1-6 were tested according to the methods in relevant industry standards, and the results are shown in Table 2. Among them, the test method of resistivity refers to: GB / T24525-2009, the test method of tensile strength refers to: GB / T8721-2009, the test method of flexural strength refers to: GB / T3074.1-2008, the test of thermal expansion coefficient Method reference: GB / T3074.4-2003, volume density test method reference: GB / T24528-2009, ash content test method reference: GB / T1429-2009.

[0050] Table 2 Comparison of the indicators of the environment-friendly carbon electrodes in Examples 1 to 6 and the standard carbon electrodes

[0051]

[0052] The results in Table 2 show that the carbon electrode of the present invention (carbon electrode containing carbon fiber) is much better than the industry standard of ordinary carbon electrode (not containing car...

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Abstract

The invention discloses a reinforced environment-friendly carbon electrode which is composed of the following components in percentage by weight: 25-35% of granular electrical calcined anthracite, 14-20% of coal pitch, 10-20% of granular graphite material, 25-35% of powdery calcined coke and 1-10% of carbon fiber material. The electrical calcined anthracite and the graphite material are uniformly distributed in the sizing material formed by the coal pitch and powdery calcined coke. The carbon electrode disclosed by the invention has greatly higher performance indexes and quality than a common carbon electrode, has the advantages of very high tensile strength and favorable thermal shock resistance, greatly lowers the rupture accident in the submerged arc furnace smelting process, and enhances the production efficiency of users.

Description

technical field [0001] The invention belongs to the technical field of carbon electrodes, and relates to a reinforced environment-friendly carbon electrode and a preparation method thereof, in particular to a reinforced environment-friendly carbon electrode added with carbon fiber materials and a preparation method thereof. Background technique [0002] Carbon fiber is a high-temperature-resistant fiber with high strength and modulus. Its specific gravity is less than 1 / 4 of that of steel. The tensile strength of carbon fiber resin composite materials is generally above 3500MPa, which is 7-9 times that of steel. The modulus of elasticity is 23000-43000MPa, which is also higher than that of steel. [0003] Carbon fiber is a material with excellent physical properties. It can withstand high temperature without losing strength. It has good corrosion resistance to general acids and alkalis. It has been widely used in industry, civil, construction, transportation, medical, aviati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02C01B32/05
Inventor 吴守峰张胜利路二毛赵桂平张波赵阳阳
Owner CHONGQING EASTSTAR HIGH TEMPERATURE MATERIAL
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