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Corrosion-resistant conductive ceramic electrode material for sewage sludge treatment and preparation method thereof

A technology of electrode materials and conductive ceramics, which is applied in the field of sludge treatment and sewage, can solve the problems of difficult technical popularization and application, increased equipment operating costs, insufficient electrochemical performance, etc., to achieve improved electrochemical performance, good machinability, The effect of good toughness

Active Publication Date: 2017-12-26
JIANGSU UNITED CERALLOY MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Based on the consideration of many factors such as environmental protection and efficiency, the advanced technology of sewage and sludge treatment is currently being valued by relevant enterprises in various countries. However, the electrode materials used in such equipment usually use conventional metal or metal coating. , in the process of sewage and sludge treatment, due to the electrochemical reaction, the materials near the electrodes are highly corrosive, and it is difficult for metal electrode materials to work effectively in harsh environments, and their corrosion resistance and wear resistance are poor. Insufficient, the average service life is less than 1000 hours, resulting in an increase in equipment operating costs, and it is difficult to quickly promote the application of technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The electrode material of the present invention comprises the following mass percentage components mixed, cured and sintered,

[0056] TiB with a particle size of 3-10 μm 2 Powder 15%;

[0057] Ti with a particle size of 1-3 μm 4 o 7 Powder 11%;

[0058] B with a particle size of 20-30 μm 2 o 3 Powder 1%;

[0059] Artificial graphite with a particle size of 60-150 μm 60%;

[0060] 5% of graphitized mesocarbon microspheres with a particle size of 10-15 μm;

[0061] Graphitized carbon fiber 5-8mm 6%;

[0062] E-44 epoxy resin 2%;

[0063] Mixed solvent 1 / 4 of the total mass of the above raw materials.

[0064] The mixed solvent is prepared from butyl acetate and absolute ethanol at a volume ratio of 2:1.

[0065] Specific steps:

[0066] 1) According to the above raw material ratio, add all the raw materials into the kneader and mix to obtain the required slurry, and the mixing time is 6 hours;

[0067] 2) Put the slurry prepared in step 1) in the mold of a c...

Embodiment 2

[0074] The electrode material of the present invention comprises the following mass percentage components mixed, cured and sintered,

[0075] TiB with a particle size of 3-10 μm 2 Powder 2%;

[0076] Ti with a particle size of 1-3 μm 4 o 7 Powder 15%;

[0077] B with a particle size of 20-30 μm 2 o 3 Powder 2%;

[0078] TiO with a particle size of 2 to 5 μm 2 Powder 3%;

[0079] TiC particles with a particle size of 2 to 5mm 12%;

[0080] Artificial graphite with a particle size of 60-150 μm 55%;

[0081] 5% of graphitized mesocarbon microspheres with a particle size of 10-15 μm;

[0082] Graphitized carbon fiber 5-8mm 3%;

[0083] E-44 epoxy resin 3%;

[0084] Mixed solvent 1 / 4 of the total mass of the above raw materials.

[0085] The mixed solvent is prepared from butyl acetate and absolute ethanol at a volume ratio of 2:1.

[0086] Specific steps:

[0087] 1) According to the above raw material ratio, add all the raw materials into the kneader and mix to obt...

Embodiment 3

[0095] The electrode material of the present invention comprises the following mass percentage components mixed, cured and sintered,

[0096] Ti with a particle size of 1-3 μm 4 o 7 Powder 15%;

[0097] B with a particle size of 20-30 μm 2 o 3 Powder 2%;

[0098] TiC particles with a particle size of 2 to 5mm 8%;

[0099] SiO with a particle size of 20-30 μm 2 Powder 3%;

[0100] Artificial graphite with a particle size of 60-150 μm 55%;

[0101] Graphitized mesocarbon microspheres with a particle size of 10-15 μm 10%;

[0102] Graphitized carbon fiber 5-8mm 6%;

[0103] E-44 epoxy resin 1%

[0104] Mixed solvent 1 / 4 of the total mass of the above raw materials.

[0105] The mixed solvent is prepared from butyl acetate and absolute ethanol at a volume ratio of 2:1.

[0106] Specific steps:

[0107] 1) According to the above raw material ratio, add all the raw materials into the kneader and mix to obtain the required slurry. The mixing time is 3 hours;

[0108] 2)...

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Abstract

The invention discloses an anti-corrosion conductive ceramic electrode material for sewage and sludge treatment and a preparation method of the anti-corrosion conductive ceramic electrode material. The anti-corrosion conductive ceramic electrode material is characterized in that carbon is used as aggregate; the anti-corrosion conductive ceramic electrode material is prepared from artificial graphite, graphitized mesocarbon microbeads, a reinforcement binder, graphitized carbon fiber and E-44 epoxy resin. The preparation method comprises the following steps of adding a Ti4O7 functional additive having strong electrode performance, simultaneously adding one or several of ceramic anti-wear-corrosion components of TiB2, TiO2, TiC, B2O3, SiO2 and SiC, carrying out solidification, compression molding and high-temperature sintering after adding a mixing solvent and completely mixing the mixture, and finally preparing the anti-corrosion conductive ceramic electrode material. According to the anti-corrosion conductive ceramic electrode material and the preparation method, disclosed by the invention, aiming at an actual working situation of a sewage and sludge treatment environment, unique anti-corrosion components are added while low specific resistance of the anti-corrosion conductive ceramic electrode material is ensured, not only are wearing resistance and corrosion resistance of traditional ceramics obtained, but also excellent conductivity and excellent electrochemical performance are obtained, and the service life is up to more than 3500 hours.

Description

technical field [0001] The invention relates to the technical field of sewage and sludge treatment, in particular to a corrosion-resistant conductive ceramic electrode material for sewage sludge treatment and a preparation method thereof. Background technique [0002] With the development of my country's national economy, the sewage treatment rate is increasing year by year, and the resulting sludge disposal problem has become a headache for local governments and many experts. The by-products of treating industrial sewage and urban domestic sewage are viscous sludge, which has a high water content and is not easy to accumulate. Since the sludge contains various pollutants, if it is not treated and disposed of innocuously, it will be directly put into the environment, which will pollute the environment. With the massive construction and operation of sewage treatment plants in various places, the amount of sludge produced has also greatly increased. Sludge treatment and dispo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/139C04B35/52C04B35/622C02F1/46C02F11/00
CPCC02F1/46C02F11/006C04B35/522C04B35/622C04B2235/3232C04B2235/3409C04B2235/3418C04B2235/3813C04B2235/3843C04B2235/3873C04B2235/422C04B2235/48C04B2235/5248C04B2235/9669
Inventor 张艳伟李庆余赵欣
Owner JIANGSU UNITED CERALLOY MATERIALS TECH
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