CN102942174A - Manufacture method for electric conduction dust-free health care carbon granule - Google Patents
Manufacture method for electric conduction dust-free health care carbon granule Download PDFInfo
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- CN102942174A CN102942174A CN2012104815375A CN201210481537A CN102942174A CN 102942174 A CN102942174 A CN 102942174A CN 2012104815375 A CN2012104815375 A CN 2012104815375A CN 201210481537 A CN201210481537 A CN 201210481537A CN 102942174 A CN102942174 A CN 102942174A
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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
The present invention relates to field of polymer technology, relate in particular to a kind of making method of conducting electricity dustless health carbon granule.
Background technology
At present, the method for firing the carbo lignius material once charing is fired method and graded temperature-control is fired method.
It is that carbo lignius with incomplete charing carries out the method that high temperature sintering prepares conduction carbo lignius material again that method is fired in the secondary charing.Such as Japanese Patent JP 2005035806 conduction charcoals or bamboo charcoal and preparation method thereof, be with the block charcoal after the charing or bamboo charcoal upper 1000 ℃ with on once charing prepare the method for electroconductibility charcoal or bamboo charcoal.This preparation method's charcoal yield is higher, but sintering process needs the secondary temperature elevation sintering, reduce thereby char combustion charcoal density easily occurs in the double sintering process, and have the inhomogeneous phenomenon of charing, so electric conductivity is difficult to improve.
It is in combustion processes that graded temperature-control is fired method; first furnace temperature is risen to sintering temperature; then cease fire and be cooled to lesser temps; blow-on is warming up to sintering temperature again; such as Chinese patent ZL02129280.9 method of producing electric bamboo, be that bulk material is put into sintering oven, furnace temperature is risen to 1500 ℃ first; then be cooled to 700 ℃, rise to again 1500 ℃ method.This method charring process time is grown, yields poorly, and electric conductivity is not high.
Aforesaid method is the timber of bulk or bamboo wood carbonized, and all is to be warmed up to sintering temperature to lower the temperature immediately, therefore all has the characteristics such as charing is inhomogeneous, poor stability, electric conductivity is low, static resistance is poor.And contain dust impurity, health-caring function haves much room for improvement.
Summary of the invention
The purpose of this invention is to provide a kind of making method that does not contain dust and impurity, the dustless health carbon granule of static resistance conduction good, that have health-caring function.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs:
A kind of making method of conducting electricity dustless health carbon granule, it may further comprise the steps successively:
(1) raw material pre-treatment: plant material is sent in the microwave vacuum tank, be evacuated to vacuum tightness for-0.02MPa～-0.001MPa, carry out again microwave treatment, microwave frequency is 300MHz～950MHz, microwave treatment time is 1～3min;
(2) elementary charcoal preparation: will experience successively through the plant material of raw material pre-treatment gained drying, pre-charing, charing, calcining and cooling, control combustion is warming up to 700-750 ℃ or 900-1000 ℃ and is incubated 40-80min with the speed of 5-15 ℃/min, and then be warming up to 1000-1500 ℃ or 1600-1800 ℃ and be incubated 2-8h with the speed of 5-15 ℃/min, then the speed with 18-25 ℃/min is cooled to 300-400 ℃, cool to again room temperature with the furnace, obtain elementary charcoal;
(3) immersion treatment: the solution of the elementary charcoal of gained being put into acid content 3-5wt% soaks 20-40min, is neutral with washed with de-ionized water to pH value then;
(4) microwave treatment: step (3) gained material is carried out microwave treatment, and microwave frequency is 500～650MHz, and microwave treatment time is 1～3min;
(5) carbon granule preparation.
The advantage of the inventive method is:
1. can control moisture and the perforate of plant material by pre-treatment, help the preparation of follow-up elementary charcoal, can improve the conduction of elementary charcoal and de-taste function, the plant charcoal surface resistivity of preparation is high, have good conductivity, the static resistance of carbon granule goods is had promoter action;
2. this plant charcoal particle and having de-tastes and antibacterial, and dirt is had adsorption, assists in removing the peculiar smell in the environment; Place water, can adsorbing chloride ions, the fine impurity such as tea stain, water is purified;
The carbon granule electric conductivity of 3. passing through immersion treatment is high, and does not contain dust impurity, and the far infrared effect is good, can promote health insulation and peripheral blood circulation, has good health care function;
4. the contriver finds to carry out microwave treatment again after immersion treatment, can strengthen the antibacterial ability of charcoal particle, and the negative ion releasing function of carbon granule of the present invention is improved, can improve user's vital capacity, improve sleep quality.
As preferably, described step (1) plant material is corn cob, bamboo or pine tree.
More preferably, for corn cob or bamboo, control combustion is warming up to 700-750 ℃ and be incubated 40-80min with the speed of 5-15 ℃/min, and then be warming up to 1000-1500 ℃ and be incubated 2-8h with the speed of 5-15 ℃/min, then the speed with 20-23 ℃/min is cooled to 330-380 ℃, cool to again room temperature with the furnace, obtain elementary charcoal.
More preferably, for pine tree, control combustion is warming up to 900-1000 ℃ and be incubated 40-80min with the speed of 5-15 ℃/min, and then be warming up to 1600-1800 ℃ and be incubated 2-8h with the speed of 5-15 ℃/min, then the speed with 20-23 ℃/min is cooled to 330-380 ℃, cool to again room temperature with the furnace, obtain elementary charcoal.
As preferably, described step (1) is sent into plant material in the microwave vacuum tank, be evacuated to vacuum tightness for-0.01MPa～-0.005MPa, carry out again microwave treatment, microwave frequency is 300MHz～950MHz, microwave treatment time is 1.2～2min.
As preferably, described step (3) immersion treatment is that the solution that the elementary charcoal of gained is put into acid content 3-5wt% is soaked 30min, is neutral with washed with de-ionized water to pH value then.
More preferably, described solution is the acid solution that contains 4wt%HCl.
More preferably, described solution is for containing H
2SO
4The sulphuric acid soln of amount 5wt%.
As preferably, described step (4) is that the gained material is carried out microwave treatment, and microwave frequency is 550～600MHz, and microwave treatment time is 1.2～2min.
As preferably, the preparation of described step (5) carbon granule is that the material after the microwave treatment is made the charcoal particle that diameter is 0.5-2mm with pulverizer or hydropress.
Description of drawings
Fig. 1 is the temperature controlling system schematic diagram of the vertical moving-bed of plant charcoal charing of the present invention;
Among the figure, the A-drying zone; The pre-char zone of B-; The C-char zone; The D-calcining zone; The E-cooling zone; F-is with the temperature sensing device of CPU; D1/d2/d3-oxidizer entrance hole; The t1/t2/t3-point for measuring temperature.
Embodiment
As shown in Figure 1, the vertical moving-bed of plant charcoal preparation use is divided into drying zone A, pre-char zone B, char zone C, calcining zone D and cooling zone E.Calcining zone D one side is distributed with the many oxidizer entrance holes that can regulate closure or openness, such as d1, d2, d3 etc., point for measuring temperature such as t1, t2, the t3s etc. of opposite side to each aperture place should be arranged, each aperture place temperature shows by the temperature sensing device F that is connected with this point for measuring temperature.
Embodiment one
The plant material that the present embodiment adopts is corn cob.
Plant material is sent in the microwave vacuum tank, be evacuated to vacuum tightness and be-0.02MPa, carry out microwave treatment again, microwave frequency is 300MHz, and microwave treatment time is 1min; To experience successively drying through the plant material of pre-treatment gained, pre-charing, charing, calcining and cooling, the temperature of each point for measuring temperature, drying zone A is 150 ℃, pre-char zone B is 275 ℃, char zone C is 450 ℃, observe the temperature of D shown in Figure 1 district combustion zone different positions during intensification, when the temperature of somewhere, combustion zone such as d2 is crossed when low, open the aperture at this place, import air and locally burn, this place's temperature is raise, the combustion zone temperature that experiences in the folding process of control bamboo, control combustion is warming up to 700 ℃ and be incubated 40min with the speed of 5 ℃/min, and then is warming up to 1600 ℃ and be incubated 2h with the speed of 5 ℃/min
Then the speed with 23-25 ℃/min is cooled to 380-400 ℃, cools to room temperature with the furnace again, obtains elementary charcoal; The elementary charcoal of gained being put into the solution that contains HNO3 amount 3-5wt% soak 20min, is neutral with washed with de-ionized water to pH value then;
And then carry out microwave treatment, and microwave frequency is 600～650MHz, microwave treatment time is 2～3min; Make the charcoal particle that diameter is 0.5-2mm with pulverizer or hydropress at last.
Detect performance and see Table 1.Measure the iodine sorption value of carbon granule to react its absorption property according to GB GB/T12496.10.
Embodiment two
The plant material that the present embodiment adopts is bamboo chip (being about 40cm).
Plant material is sent in the microwave vacuum tank, be evacuated to vacuum tightness and be-0.001MPa, carry out microwave treatment again, microwave frequency is 950MHz, and microwave treatment time is 3min;
To experience successively drying through the plant material of pre-treatment gained, pre-charing, charing, calcining and cooling, the temperature of each point for measuring temperature, drying zone A is 150 ℃, pre-char zone B is 275 ℃, char zone C is 450 ℃, observe the temperature of D shown in Figure 1 district combustion zone different positions during intensification, when the temperature of somewhere, combustion zone such as d2 is crossed when low, open the aperture at this place, import air and locally burn, this place's temperature is raise, the combustion zone temperature that experiences in the folding process of control bamboo, control combustion is warming up to 750 ℃ and be incubated 80min with the speed of 15 ℃/min, and then heats up 1500 ℃ and be incubated 8h with the speed of 15 ℃/min
Then the speed with 18-23 ℃/min is cooled to 300-330 ℃, cools to room temperature with the furnace again, obtains elementary charcoal; The elementary charcoal of gained put into contain H
2SO
4Soaking 40min in the sulphuric acid soln of amount 5wt%, is neutral with washed with de-ionized water to pH value then;
And then carry out microwave treatment, and microwave frequency is 500～550MHz, microwave treatment time is 1～1.2min; Make the charcoal particle that diameter is 0.5-2mm with pulverizer at last.
Embodiment three
The plant material that the present embodiment adopts is pine tree, ingresses after pine tree is removed epidermis impurity, and length control is no more than 15cm.
Plant material is sent in the microwave vacuum tank, be evacuated to vacuum tightness and be-0.01～-0.005MPa, carry out again microwave treatment, microwave frequency is 550MHz, microwave treatment time is 1.2-2min;
To experience successively drying through the plant material of pre-treatment gained, pre-charing, charing, calcining and cooling, the temperature of each point for measuring temperature, drying zone A is 180 ℃, pre-char zone B is 325 ℃, char zone C is 530 ℃, observe the temperature of D shown in Figure 1 district combustion zone different positions during intensification, when the temperature of somewhere, combustion zone such as d2 is crossed when low, open the aperture at this place, import air and locally burn, this place's temperature is raise, the combustion zone temperature that experiences in the folding process of control bamboo, control combustion is warming up to 900 ℃ and be incubated 50min with the speed of 10 ℃/min, and then is warming up to 1600 ℃ and be incubated 5h with the speed of 10 ℃/min
Then the speed with 20-23 ℃/min is cooled to 330-380 ℃, cools to room temperature with the furnace again, obtains elementary charcoal; The elementary charcoal of gained being put into the hydrochloric acid soln that contains HCl amount 4wt% soak 30min, is neutral with washed with de-ionized water to pH value then;
And then carry out microwave treatment, and microwave frequency is 550～600MHz, microwave treatment time is 1.2～2min; Make the charcoal particle that diameter is 0.5-2mm with hydropress at last.
Embodiment four
With embodiment three, different is that the raw material that uses is beech; Control combustion is warming up to 1000 ℃ and be incubated 50min with the speed of 10 ℃/min, and then is warming up to 1800 ℃ and be incubated 5h with the speed of 10 ℃/min.
The comparative example one
With embodiment one, different is that plant material does not pass through the microwave vacuum pre-treatment, but immersion treatment, microwave treatment and carbon granule prepare again after directly being prepared into elementary charcoal.
The comparative example two
With embodiment one, different is that elementary charcoal does not carry out immersion treatment after preparation, but directly carries out the preparation of microwave treatment and carbon granule.
The comparative example three
With embodiment three, different is not carry out microwave treatment after the immersion treatment, carries out the carbon granule preparation after drying in the air but be placed directly in.
Each embodiment of table 1 and comparative example's product performance index
As can be seen from Table 1,
(1) surface resistivity of the embodiment of the invention one-embodiment four-product is little, and its good conductivity is described, its antistatic property is strong; The plant material that embodiment four adopts is beech, and its various aspects of performance is slightly poor;
(2) comparative example one has omitted a certain step among the preparation method of the present invention to comparative example three, and the various aspects of performance of its product is poor.
This specific embodiment only is explanation of the invention; it is not limitation of the present invention; those skilled in the art can make the modification that does not have creative contribution to the present embodiment as required after reading this specification sheets, but as long as all are subject to the protection of patent law in claim scope of the present invention.
Claims (10)
- One kind the conduction dustless health carbon granule making method, it is characterized in that: may further comprise the steps successively:(1) raw material pre-treatment: plant material is sent in the microwave vacuum tank, be evacuated to vacuum tightness for-0.02MPa～-0.001MPa, carry out again microwave treatment, microwave frequency is 300MHz～950MHz, microwave treatment time is 1～3min;(2) elementary charcoal preparation: will experience successively through the plant material of raw material pre-treatment gained drying, pre-charing, charing, calcining and cooling, control combustion is warming up to 700-750 ℃ or 900-1000 ℃ and is incubated 40-80min with the speed of 5-15 ℃/min, and then be warming up to 1000-1500 ℃ or 1600-1800 ℃ and be incubated 2-8h with the speed of 5-15 ℃/min, then the speed with 18-25 ℃/min is cooled to 300-400 ℃, cool to again room temperature with the furnace, obtain elementary charcoal;(3) immersion treatment: the solution of the elementary charcoal of gained being put into acid content 3-5wt% soaks 20-40min, is neutral with washed with de-ionized water to pH value then;(4) microwave treatment: step (3) gained material is carried out microwave treatment, and microwave frequency is 500～650MHz, and microwave treatment time is 1～3min;(5) carbon granule preparation.
- 2. a kind of making method of conducting electricity dustless health carbon granule according to claim 1, it is characterized in that: described step (1) plant material is corn cob, bamboo or pine tree.
- 3. a kind of making method of conducting electricity dustless health carbon granule according to claim 2, it is characterized in that: for corn cob or bamboo, control combustion is warming up to 700-750 ℃ and be incubated 40-80min with the speed of 5-15 ℃/min, and then be warming up to 1000-1500 ℃ and be incubated 2-8h with the speed of 5-15 ℃/min, then the speed with 20-23 ℃/min is cooled to 330-380 ℃, cool to again room temperature with the furnace, obtain elementary charcoal.
- 4. a kind of making method of conducting electricity dustless health carbon granule according to claim 2, it is characterized in that: for pine tree, control combustion is warming up to 900-1000 ℃ and be incubated 40-80min with the speed of 5-15 ℃/min, and then be warming up to 1600-1800 ℃ and be incubated 2-8h with the speed of 5-15 ℃/min, then the speed with 20-23 ℃/min is cooled to 330-380 ℃, cool to again room temperature with the furnace, obtain elementary charcoal.
- 5. each described a kind of making method of conducting electricity dustless health carbon granule according to claim 1-4, it is characterized in that: described step (1) is sent into plant material in the microwave vacuum tank, be evacuated to vacuum tightness for-0.01MPa～-0.005MPa, carry out again microwave treatment, microwave frequency is 300MHz～950MHz, and microwave treatment time is 1.2～2min.
- 6. each described a kind of making method of conducting electricity dustless health carbon granule according to claim 1-4, it is characterized in that: described step (3) immersion treatment is that the solution that the elementary charcoal of gained is put into acid content 3-5wt% is soaked 30min, is neutral with washed with de-ionized water to pH value then.
- 7. a kind of making method of conducting electricity dustless health carbon granule according to claim 6, it is characterized in that: described solution is the acid solution that contains 4wt%HCl.
- 8. a kind of making method of conducting electricity dustless health carbon granule according to claim 6, it is characterized in that: described solution is for containing H 2SO 4The sulphuric acid soln of amount 5wt%.
- 9. a kind of making method of conducting electricity dustless health carbon granule according to claim 6, it is characterized in that: described step (4) is that the gained material is carried out microwave treatment, and microwave frequency is 550～600MHz, and microwave treatment time is 1.2～2min.
- 10. each described a kind of making method of conducting electricity dustless health carbon granule according to claim 7-9, it is characterized in that: the preparation of described step (5) carbon granule is that the material after the microwave treatment is made the charcoal particle that diameter is 0.5-2mm with pulverizer or hydropress.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105146808A (en) * | 2014-07-06 | 2015-12-16 | 南通芯迎设计服务有限公司 | Environmentally-friendly bamboo charcoal mouth mask and preparation method thereof |
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Patent Citations (5)
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| US20020064495A1 (en) * | 2000-11-28 | 2002-05-30 | Masakatsu Miura | Process for the production of carbonized material |
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| JP2005281116A (en) * | 2004-03-31 | 2005-10-13 | Kochi Univ Of Technology | Method for producing activated carbon using microwave |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105146808A (en) * | 2014-07-06 | 2015-12-16 | 南通芯迎设计服务有限公司 | Environmentally-friendly bamboo charcoal mouth mask and preparation method thereof |
| CN105146808B (en) * | 2014-07-06 | 2017-03-01 | 海安县恒业制丝有限公司 | Environmental bamboo charcoal mask and preparation method thereof |
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