Manufacture method for electric conduction dust-free health care carbon granule

A production method and technology of carbon granules, applied in the field of polymers, can solve the problems of health care function to be improved, poor antistatic property, poor stability, etc. Effect

Inactive Publication Date: 2013-02-27
ZHEJIANG JIANZHONG BAMBOO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]The above-mentioned methods all carbonize block wood or bamboo, and all of them are heated up to the sintering temperature and immediately cooled down, so there are uneven carbonization, poor stability, and poor electrical conductivity. Low, poor antistatic properties, etc.
And it contains dust and impurities, and the health care function needs to be improved

Method used

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  • Manufacture method for electric conduction dust-free health care carbon granule
  • Manufacture method for electric conduction dust-free health care carbon granule

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The plant raw material used in this embodiment is corncob.

[0035] Put the plant material into the microwave vacuum tank, vacuumize to -0.02MPa, and then conduct microwave treatment, the microwave frequency is 300MHz, and the microwave treatment time is 1min; the plant material obtained after pretreatment is dried and pre-carbonized in sequence , carbonization, calcination and cooling, the temperature of each temperature measurement point, the drying zone A is 150°C, the pre-carbonization zone B is 275°C, and the carbonization zone C is 450°C. figure 1 The zone D shown is the temperature of different positions in the combustion zone. When the temperature of a certain place in the combustion zone, such as d2, is too low, open the small hole in that place, introduce air and burn it nearby, so as to raise the temperature in this place and control the bamboo to move down. The temperature of the combustion zone experienced during the process, control the combustion to raise...

Embodiment 2

[0041] The plant material used in this example is bamboo chips (about 40 cm long).

[0042] Put the plant material into the microwave vacuum tank, vacuumize until the vacuum degree is -0.001MPa, and then carry out microwave treatment, the microwave frequency is 950MHz, and the microwave treatment time is 3min;

[0043] The plant raw materials obtained through pretreatment are dried, pre-carbonized, carbonized, calcined, and cooled in sequence. The temperature at each temperature measurement point is 150°C in drying area A, 275°C in pre-carbonization area B, and 450°C in carbonization area C. Observation during warming figure 1 The zone D shown is the temperature of different positions in the combustion zone. When the temperature of a certain place in the combustion zone, such as d2, is too low, open the small hole in that place, introduce air and burn it nearby, so as to raise the temperature in this place and control the bamboo to move down. The temperature of the combustion...

Embodiment 3

[0048] The plant raw material used in this embodiment is pine tree, and the pine tree is first cut after the skin impurities are removed, and the length is controlled to be no more than 15 cm.

[0049] Put the plant raw material into the microwave vacuum tank, evacuate until the vacuum degree is -0.01~-0.005MPa, and then carry out microwave treatment, the microwave frequency is 550MHz, and the microwave treatment time is 1.2-2min;

[0050] The pre-treated plant raw materials are dried, pre-carbonized, carbonized, calcined, and cooled in sequence. The temperature at each temperature measurement point is 180°C in the drying area A, 325°C in the pre-carbonization area B, and 530°C in the carbonization area C. Observation during warming figure 1 The zone D shown is the temperature of different positions in the combustion zone. When the temperature of a certain place in the combustion zone, such as d2, is too low, open the small hole in that place, introduce air and burn it nearby,...

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Abstract

The invention relates to the field of macromolecules, in particular to a manufacture method for an electric conduction dust-free health care carbon granule. The method includes the following steps: pre-processing raw materials: placing plant raw materials into a microwave vacuum tank, vacuumizing to a vacuum degree as -0.002MPa to -0.001MPa, and conducting microwave processing; drying, pre-carbonizing, carbonizing, calcining and cooling the obtained plant raw materials after the pre-processing of the raw materials sequentially, controlling burning to raise the temperature to 700-750 DEG C or 900-1000 DEG C at the speed of 5-15 DEG C/min, keeping the temperature for 40-80 mins, raising the temperature to 1000-1500 DEG C or 1600-1800 DEG C at the speed of 5-15 DEG C/min, keeping the temperature for 2-8 h, cooling to the temperature of 300-400 DEG C at the speed of 18-25 DEG C/min, and cooling to the room temperature along with a furnace to obtain preliminary carbon; soaking: placing the preliminary carbon into a solution with acid content as 3-5wt%, soaking for 20-40 min, then washing with deionized water till pH of the carbon is neutral; microwave processing: conducting microwave processing on substances obtained in the step (3); and manufacturing the granule. The granule obtained through the method does not contain dust or impurities, is good in antistatic property and has a health care function.

Description

technical field [0001] The invention relates to the field of polymers, in particular to a method for preparing conductive dust-free health-care carbon particles. Background technique [0002] At present, the methods for firing wood charcoal materials include a one-time carbonization firing method and a graded temperature-controlled firing method. [0003] The secondary carbonization firing method is a method in which the incompletely carbonized wood charcoal is sintered at a high temperature to prepare a conductive wood charcoal material. For example, Japanese patent JP 2005035806 conductive charcoal or bamboo charcoal and its preparation method is a method for preparing conductive charcoal or bamboo charcoal by carbonizing block charcoal or bamboo charcoal at a temperature above 1000°C once. The carbon yield of this preparation method is high, but the sintering process requires a second temperature rise for sintering, and the carbon oxidation is likely to occur during the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02C01B32/05
Inventor 丁建中
Owner ZHEJIANG JIANZHONG BAMBOO IND
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