Preparation method of carbon granules used for air circulation of air conditioner

An air circulation and carbon particle technology, applied in the polymer field, can solve the problems of non-flammability, poor anti-static property, dust-containing impurities, etc., and achieve improved conductivity and deodorization functions, high surface resistance, and anti-bleeding properties. strong effect

Inactive Publication Date: 2013-03-13
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 blocky wood or bamboo, and all of them are heated up to the sintering temperature and immediately cooled down, so there are characteristics such as uneven carbonization, poor stability, low electrical conductivity, and poor antistatic property; and they contain dust impurities. The product is not flame retardant

Method used

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  • Preparation method of carbon granules used for air circulation of air conditioner
  • Preparation method of carbon granules used for air circulation of air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The plant raw material used in this embodiment is corncob.

[0042] 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 1The 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

[0050] The plant material used in this example is bamboo chips (about 40 cm long).

[0051] 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;

[0052] 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

[0058] 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.

[0059] 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;

[0060] 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 and particularly relates to a preparation method of carbon granules used for air circulation of an air conditioner. The carbon granules are prepared by the following steps of: pretreating raw materials: feeding plant materials into a microwave vacuum tank, vacuumizing, and then carrying out microwave treatment; then sequentially drying, pre-carbonizing, carbonizing, sintering and cooling, controlling combustion to heat up to 700-750 DEG C or 900-1000 DEG C at the rate of 5-15 DEG C/min, preserving heat for 40-80 minutes, then heating up to 1000-1500 DEG C or 1600-1800 DEG C at the rate of 5-15 DEG C/min, preserving heat for 2-8 hours, then cooling to 300-400 DEG C at the rate of 18-25 DEG C/min, and then cooling to room temperature along with a furnace to obtain primary carbon; activating: mixing the obtained primary carbon with a 8-10% potassium oxalate solution according to the mass ratio of 1:(3-4), immersing for 3-5 hours, then cleaning with deionized water until the pH value is neutral, and then carrying out vacuum pressurized flame retardant treatment, primary bamboo vinegar treatment, secondary bamboo vinegar treatment and microwave treatment; and preparing carbon granules. The carbon granules prepared by the preparation method has good antistatic property and air purification effect, and has the flame retardant function.

Description

technical field [0001] The invention relates to the field of polymers, in particular to a preparation method of carbon particles for air conditioning air circulation. 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/12C01B31/14C01B32/348C01B32/354
Inventor 丁建中
Owner ZHEJIANG JIANZHONG BAMBOO IND
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