Active-carbon thermal-insulation material and preparation method thereof

A thermal insulation material and activated carbon technology, applied in the field of carbon and materials, can solve problems such as poor thermal insulation effect, poor environmental conditions, complicated operation, etc., achieve low thermal conductivity, good thermal insulation effect, and reduce energy consumption.

Inactive Publication Date: 2015-02-25
天津锦美碳材科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose is to solve the shortcomings of existing high-temperature resistance furnaces, silicon carbide furnaces, graphitization furnaces, etc., such as poor heat preservation effect, complicated operation, and poor environmental conditions, and provide an activated carbon heat preservation material to overcome the large heat loss and serious current loss of the existing furnace type. Disadvantages such as complicated operation and large dust

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0014] (1) Preparation of activated carbon: put plant-based raw materials into a carbonization furnace, control the temperature between 400-450°C, and carbonize for 3 hours in an oxygen barrier, until all the materials turn black, then pulverize after cooling;

[0015] (2) Stirring and mixing: Pour activated carbon and carbon black into the stirring pot according to the weight ratio and stir for 15 minutes until the temperature reaches 75-85°C, add water / starch = 40% boiled pasty adhesive, continue stirring for 20 minutes, and keep the temperature 75-85 ℃, into a plastic paste;

[0016] (3) Molding: Add the hot paste that is stirred evenly into the molding machine, and the pressure is 4kg / cm 2 compression molding;

Embodiment example 2

[0018] (1) Preparation of activated carbon: put plant-based raw materials into a carbonization furnace, control the temperature between 400-450°C, and carbonize for 3 hours in an oxygen barrier, until all the materials turn black, then pulverize after cooling;

[0019] (2) Stirring and mixing: Pour activated carbon and carbon black into the stirring pot according to the weight ratio and stir for 20 minutes, the temperature reaches 90-110°C, add solid binder resin, continue stirring for 20 minutes, keep the temperature at 90-110°C, and form a plastic paste ;

[0020] (3) Molding: Add the hot paste that is stirred evenly into the molding machine, and the pressure is 4kg / cm 2 Molded.

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Abstract

The invention relates to an active-carbon thermal-insulation material and a preparation method thereof, belongs to the technical field of materials, especially belongs to the technical field of carbon, and concretely, relates to a heat-insulation warm-keeping material and a preparation method for the heat-insulation warm-keeping material. The material is obtained by performing charring and crushing on some vegetable raw materials, mixing with carbon black according to a certain ratio, pouring into a stirring pot, adding a bonding agent, uniformly stirring under a warm-keeping condition and performing compression molding. Light porous active carbon is formed by utilizing easily-available cheap herbaceous plants through charring and has low heat-conduction electric-conduction coefficients, and carbon black is added as a reinforcing agent, so that the thermal-insulation electric-insulation properties are provided, and also the effect of enhancing the strength is given play. The obtained material is spread at the bottom of a resistance furnace and has the characteristics of being capable of bearing gravity of a product at the upper part without being damaged; the thermal-insulation material is easy for paving, and a damaged block is easy to repair; the material is good in thermal insulation effect, helps to reduce energy consumption, and is economic and practical; and the material helps to solve the phenomena that a conventional resistance-furnace thermal-insulation material is complex for paving and bad in thermal-insulation effect and causes flying of dust.

Description

technical field [0001] The invention relates to an activated carbon thermal insulation material and a preparation method thereof, belonging to the technical field of materials, in particular to the technical field of carbon. Specifically, it relates to a thermal insulation material and a preparation method of the thermal insulation material. Background technique [0002] Activated carbon belongs to amorphous carbon, porous, large surface area, high temperature resistance, low thermal conductivity; carbon black is also a kind of amorphous carbon, which is a powdery carbon material with extremely fine particles, which has excellent high temperature resistance and heat insulation performance , At the same time, it can enhance the mechanical strength of the product and belongs to the non-conductor. At present, the temperature of some industrial resistance furnaces is as high as 2600 °C, especially the insulation material of graphitization furnace usually uses quartz sand as the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/28C04B26/10C04B14/36C01B31/08
Inventor 臧文平赵继国殷正娥兰建云赵旭刘志鹏
Owner 天津锦美碳材科技发展有限公司
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