CN104760981A - Novel shell calcium oxide produced by microwave - Google Patents
Novel shell calcium oxide produced by microwave Download PDFInfo
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- CN104760981A CN104760981A CN201510192278.8A CN201510192278A CN104760981A CN 104760981 A CN104760981 A CN 104760981A CN 201510192278 A CN201510192278 A CN 201510192278A CN 104760981 A CN104760981 A CN 104760981A
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- calcium oxide
- shell
- microwave
- shell calcium
- novel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Processing Of Solid Wastes (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a novel shell calcium oxide produced by microwave. The raw materials of the shell calcium oxide are one or more of an oyster shell, a scallo, a pearly shell or a fan shell. The production method comprises the following steps: adding sand and water into the shell raw material in arbitrary proportion, mixing and performing abrasive cleaning, drying and smashing till the grain diameter of 0.5-3cm; and performing microwave drying through three stages, wherein the microwave intensities are in turn 100 kilowatt, 200 kilowatt and 250 kilowatt, the microwave temperatures are in turn 600 DEG C, 1200 DEG C and 1400 DEG C, and the baking times are in turn 1h, 3h and 2h; performing high micro-grinding on the dried materials till the grain diameter is 4-30 um to obtain the product. The novel microwave produced shell calcium oxide is simple in manufacture process, environmentally friendly and energy-saving, short in burning time, high in production efficiency, high in product purity and good in quality, avoids the contact with the other fuels such as coal, reduces the residues of the heavy metal and the sulfide in the product, is widely used for food adding and subsidiary agricultural product washing, and can effectively remove the pesticide residue on the surface of the subsidiary agricultural product.
Description
Technical field
The present invention relates to a kind of calcium oxide, the shell calcium oxide of specifically a kind of novel microwave production.
Background technology
Calcium oxide obtains from Wingdale or shell usually, the material containing calcium carbonate is heated to 500 ~ 600 DEG C, makes it resolve into calcium oxide and carbonic acid gas; The preparation of existing calcium oxide adopts the fuel such as coal to sinter shell mostly, makes the residual component of heavy metal and sulfide in shell high, can not meet the requirement that it is used as the aspects such as food drying; The preparation method of existing calcium oxide, combustion time is long, and greatly not environmentally, production efficiency is low and product purity is not high for energy consumption, needs badly and improves it.
Summary of the invention
The object of the present invention is to provide the shell calcium oxide that a kind of novel microwave is produced, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
The shell calcium oxide that novel microwave is produced, the raw material of described shell calcium oxide is one or more in oyster shells, Xiayi shellfish, pearl shell or scallop shell, and the making method of described shell calcium oxide comprises the following steps:
1) material is made: one or more shell raw materials of arbitrary proportion are added sand, water mixing is worn away, it is 0.5 ~ 3cm that ovendry power is broken to particle diameter;
2) will process the microwave drying that the material obtained carries out three phases in step (1), first stage microwave intensity is set to 100 kilowatts, and temperature is 600 DEG C, and drying time is 1 hour; Subordinate phase microwave intensity is set to 200 kilowatts, and temperature is 1200 DEG C, and drying time is 3 hours; Phase III microwave intensity is set to 250 kilowatts, and temperature is 1400 DEG C, and drying time is 2 hours;
3) material that process in step (2) obtains is carried out pulverizing and obtain finished product shell calcium oxide.
As the further scheme of the present invention: the particle diameter of described finished product shell calcium oxide is 4 ~ 30 μm.
As the present invention's further scheme: the purity of described finished product shell calcium oxide is 87 ~ 92%.
Compared with prior art, the invention has the beneficial effects as follows: manufacture craft of the present invention is simple, and environmental protection and energy saving, shorten combustion time, improve production efficiency; Product purity is high, and quality is good, avoids the contact with other fuel such as coals, decrease the residual of heavy metal and sulfide in product, can be widely used in food interpolation, agricultural byproducts cleaning, effectively can remove agricultural byproducts surface pesticide residue, pesticides removal amount can reach 96% ~ 98%.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Embodiment 1
The shell calcium oxide that novel microwave is produced, the raw material of described shell calcium oxide is one or more in oyster shells, Xiayi shellfish, pearl shell or scallop shell, and the making method of described shell calcium oxide comprises the following steps:
1) material is made: one or more shell raw materials of arbitrary proportion are added sand, water mixing is worn away, it is 0.5 ~ 3cm that ovendry power is broken to particle diameter
2) will process the microwave drying that the material obtained carries out three phases in step (1), first stage microwave intensity is set to 100 kilowatts, and temperature is 600 DEG C, and drying time is 1 hour; Subordinate phase microwave intensity is set to 200 kilowatts, and temperature is 1200 DEG C, and drying time is 3 hours; Phase III microwave intensity is set to 250 kilowatts, and temperature is 1400 DEG C, and drying time is 2 hours;
3) pulverize processing the material obtained in step (2), powder particle diameter is 4 ~ 30 μm, obtains the finished product shell calcium oxide that purity is 87 ~ 92%.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (3)
1. the shell calcium oxide produced of novel microwave, is characterized in that: the raw material of described shell calcium oxide is one or more in oyster shells, Xiayi shellfish, pearl shell or scallop shell, and the making method of described shell calcium oxide comprises the following steps:
1) material is made: one or more shell raw materials of arbitrary proportion are added sand, water mixing is worn away, it is 0.5 ~ 3cm that ovendry power is broken to particle diameter;
2) will process the microwave drying that the material obtained carries out three phases in step (1), first stage microwave intensity is set to 100 kilowatts, and temperature is 600 DEG C, and drying time is 1 hour; Subordinate phase microwave intensity is set to 200 kilowatts, and temperature is 1200 DEG C, and drying time is 3 hours; Phase III microwave intensity is set to 250 kilowatts, and temperature is 1400 DEG C, and drying time is 2 hours;
3) material that process in step (2) obtains is carried out pulverizing and obtain finished product shell calcium oxide.
2. the shell calcium oxide of novel microwave production according to claim 1, it is characterized in that, the particle diameter of described finished product shell calcium oxide is 4 ~ 30 μm.
3. the shell calcium oxide of novel microwave production according to claim 1, it is characterized in that, the purity of described finished product shell calcium oxide is 87 ~ 92%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192278.8A CN104760981A (en) | 2015-04-23 | 2015-04-23 | Novel shell calcium oxide produced by microwave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192278.8A CN104760981A (en) | 2015-04-23 | 2015-04-23 | Novel shell calcium oxide produced by microwave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104760981A true CN104760981A (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510192278.8A Pending CN104760981A (en) | 2015-04-23 | 2015-04-23 | Novel shell calcium oxide produced by microwave |
Country Status (1)
| Country | Link |
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| CN (1) | CN104760981A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107684899A (en) * | 2017-10-11 | 2018-02-13 | 浙江海洋大学 | A kind of method that heavy metal cadmium adsorbent is prepared using Species of Crustacea processing fent |
| CN107720798A (en) * | 2017-09-30 | 2018-02-23 | 广西华洋矿源材料有限公司 | The preparation method of active calcium oxide |
| CN113929126A (en) * | 2021-09-16 | 2022-01-14 | 哈尔滨牡蛎生物科技有限公司 | Method for producing active calcium from oyster shell |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311137A (en) * | 2010-06-29 | 2012-01-11 | 吉林省贝安新型环保建筑材料有限公司 | Shell powder and preparation method thereof |
| CN103073038A (en) * | 2013-01-23 | 2013-05-01 | 浙江大学 | Preparation method of acid-modified superfine shell powder and product |
-
2015
- 2015-04-23 CN CN201510192278.8A patent/CN104760981A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311137A (en) * | 2010-06-29 | 2012-01-11 | 吉林省贝安新型环保建筑材料有限公司 | Shell powder and preparation method thereof |
| CN103073038A (en) * | 2013-01-23 | 2013-05-01 | 浙江大学 | Preparation method of acid-modified superfine shell powder and product |
Non-Patent Citations (1)
| Title |
|---|
| 陈雷: ""微波高温分解贝壳及其深加工"", 《中国优秀硕士学位论文全文数据库(电子期刊) 工程科技I辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720798A (en) * | 2017-09-30 | 2018-02-23 | 广西华洋矿源材料有限公司 | The preparation method of active calcium oxide |
| CN107684899A (en) * | 2017-10-11 | 2018-02-13 | 浙江海洋大学 | A kind of method that heavy metal cadmium adsorbent is prepared using Species of Crustacea processing fent |
| CN113929126A (en) * | 2021-09-16 | 2022-01-14 | 哈尔滨牡蛎生物科技有限公司 | Method for producing active calcium from oyster shell |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150708 |