CN1962766A - Process for preparing superfine modified inorganic powder by dry method - Google Patents
Process for preparing superfine modified inorganic powder by dry method Download PDFInfo
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- CN1962766A CN1962766A CN 200610136836 CN200610136836A CN1962766A CN 1962766 A CN1962766 A CN 1962766A CN 200610136836 CN200610136836 CN 200610136836 CN 200610136836 A CN200610136836 A CN 200610136836A CN 1962766 A CN1962766 A CN 1962766A
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- inorganic powder
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Abstract
The invention discloses a making method of dried hyperfine modified inorganic powder, which is characterized by the following: grinding non-metal ore with grain size less than 150um through cylinder-pattern mill; spraying surface modifier directly to add vibrating grinding; modifying the surface of particle; grading after vibrating; obtaining hyperfine modified inorganic powder with different grain sizes.
Description
Technical field
The present invention relates to a kind of method of preparing superfine modified inorganic powder by dry, belong to field of inorganic nonmetallic material.
Background technology
21 century non-metallic mineral powder former (material) the material widespread use in industry such as new and high technology, novel material, conventional industries technical progress and industrial upgrading, environmental protection, biological medicine and human daily life is that higher technology content is a prerequisite in former with this (material) material.And many Application Areass also have particular requirement to the surface or the interfacial property of nonmetallic mineral material, so the surface modification of powder, activation and compounding technology are one of topmost deep process technologies of non-metallic minerals.Modified powder refers to the inorganic powder of the process surface modification that is applicable to polymeric matrix.
The superfine grinding method of inorganic powder mainly is mechanical force method at present, and the major equipment of superfine grinding is an airflow milling, and superfine grinding, main technique super-fine classified and surface modification have dry method and wet method.Though domestic method and technology to the non-metallic minerals superfine grinding is a lot of at present, but the automatic monitoring technique of process matching, globule size and distribution is perfect not enough, existing method and technology can not be served production well, the mineral that particularly need modification also must have the use that matches with the processing units of preorder of relevant modified device after superfine grinding and classification.This technical process that will extend, increase facility investment and increase area of mill site, do not carry out modification as fruit product, can reduce this value-added content of product greatly again, increase many troubles for the follow-up direct application of inorganic powder, when using as the addition material of organic matrixs such as rubber plastic as: inorganic powder, just must adding again after its surface modification.
Summary of the invention
The purpose of this invention is to provide a kind of method for preparing superfine modified inorganic powder, this method cost is low, pollution-free, technical process is simple and easy to operate, the superfine modified inorganic powder that utilizes this method to make.
A kind of method of preparing superfine modified inorganic powder by dry, the nonmetalliferous ore raw material of granularity less than 150 μ m ground with the ultra-fine vibration mill of cartridge type, during grinding surface-modifying agent atomizing back is directly added vibration mill, realize that material carries out surface chemical modification to particle simultaneously at levigated, back classification that vibration mill is levigate, obtain the superfine modified inorganic powder of different grain size scope, thereby the ultra-fine and modification that has realized inorganic powder is integrated.
Described surface-modifying agent comprises silane, titanate, aluminate, zircoaluminate class coupling agent or stearates properties-correcting agent.
Described grinding medium is a Ceramic Balls, comprises alumina balls, zirconia ball or silicon nitride ball; Ball material weight ratio is 5: 1~15: 1; Milling time is 20~50min.
Described non-metallic minerals raw material comprises quartz, lime carbonate, talcum, kaolin, graphite, zeolite, gypsum, barite and various industrial solid castoff.
Major advantage of the present invention has:
(1) product functionization.This method can realize the levigate and surface modification of product simultaneously, thereby can satisfy the demand of different application field to institute's converted products.
(2) product whiteness height, modified effect are good.All pipelines have all passed through special processing in this method flow, therefore can make the course of processing that the influence of product whiteness is dropped to lower-most point.With the modification quartz is example, and granularity is the product of 15~20 μ m, and whiteness can reach more than 95%.
(3) processing adjustability.Produce modified inorganic powder with this method, product granularity can be realized regulating automatically and control between 5~40 μ m.
(4) cost is low, pollution-free, added value of product is high.
Embodiment
Embodiment 1
The silica powder of granularity less than 150 μ m is directly added in the ultra-fine vibration mill of the bitubular that volume is 800L, grinding medium in the vibration mill is alumina balls, surface-modifying agent (silane coupling agent) is together added from grinding machine opening for feed and grinding charge(of mill) material by atomizer atomizing back, behind the 5min, the other end at grinding machine top cylindrical shell also adds the properties-correcting agent atomizing, and griding technology is taked closed circuit flow process.Behind about 20min, the material that comes out from the grinding machine below is through micro-powder graded machine, the product that particle size is qualified is transported to subsequent processing, the underproof vibration mill that returns of granularity is regrinded, and the material that comes out from micro-powder graded machine directly enters air classifier No. one time, therefrom tells our required qualified product, granularity is about 20 μ m, material less than the qualified product granularity then advances electric dust-removing equipment, and the collected material of electric precipitator is discharged from the below, and its granularity is below 10 μ m.The modification silica powder output of using this method to obtain is 500~600kg/h, and power consumption is about 100 degree/ton ore deposits, and the good and whiteness of the product modified effect of gained is more than 95%, and noise is low in the whole process of production, does not produce dust pollution.
Claims (4)
1. the method for a preparing superfine modified inorganic powder by dry, the nonmetalliferous ore raw material of granularity less than 150 μ m ground with the ultra-fine vibration mill of cartridge type, it is characterized in that: during grinding surface-modifying agent atomizing back is directly added vibration mill, back classification that vibration mill is levigate obtains the superfine modified inorganic powder of different grain size scope.
2. method according to claim 1 is characterized in that: described grinding medium is a Ceramic Balls, comprises alumina balls, zirconia ball or silicon nitride ball; Ball material weight ratio is 5: 1~15: 1; Milling time is 20~50min.
3. method according to claim 1 is characterized in that: described surface-modifying agent comprises silane, titanate, aluminate, zircoaluminate class coupling agent or stearates properties-correcting agent.
4. method according to claim 1 is characterized in that: described non-metallic minerals raw material comprises quartz, lime carbonate, talcum, kaolin, graphite, zeolite, gypsum, barite and various industrial solid castoff.
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CN 200610136836 CN1962766A (en) | 2006-12-08 | 2006-12-08 | Process for preparing superfine modified inorganic powder by dry method |
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Cited By (15)
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CN102675920A (en) * | 2012-05-15 | 2012-09-19 | 福建丰力机械科技有限公司 | Ionization adsorption type powder modifying method and device |
CN101775238B (en) * | 2010-01-29 | 2013-01-09 | 大连友兰企业集团有限公司 | Active extra-fine grinding calcium carbonate processing method |
CN103554704A (en) * | 2013-07-02 | 2014-02-05 | 安徽金阳电器科技发展有限责任公司 | Modified calcium carbonate for anti-ultraviolet electric cable material, and preparation method thereof |
CN103613956A (en) * | 2013-11-25 | 2014-03-05 | 连云港东海硅微粉有限责任公司 | Preparation method of mechanochemical modified silica micropowder |
CN103804953A (en) * | 2013-12-10 | 2014-05-21 | 辽宁亿龙矿业股份有限公司 | Method for preparing ultrafine surface modified dolomite |
CN104479410A (en) * | 2014-11-03 | 2015-04-01 | 重庆和泰塑胶股份有限公司 | Calcium carbonate surface treatment method |
CN104745153A (en) * | 2013-12-31 | 2015-07-01 | 中国石油天然气集团公司 | Barite micro-powder for drilling fluid and preparation method of concentrated liquor of barite micro-powder |
CN104910649A (en) * | 2015-04-23 | 2015-09-16 | 信阳核工业恒达实业公司 | Quartz powder surface active composite modification method |
CN107033633A (en) * | 2017-03-16 | 2017-08-11 | 湖南金马新材料科技有限公司 | A kind of natural powdery quartz is brightened, shaping, the technology of modified integration |
CN107035008A (en) * | 2017-04-05 | 2017-08-11 | 天津市建筑材料科学研究院 | A kind of cladding aeroge fibrofelt and its wet method composite preparation process |
CN107986694A (en) * | 2017-12-18 | 2018-05-04 | 桂林良物造日用品有限公司 | A kind of diatomite foot pad and preparation method thereof |
CN111005222A (en) * | 2019-12-12 | 2020-04-14 | 湖北冯家山硅纤有限公司 | Surface treatment method of superfine and overlong silicon fiber |
CN111019396A (en) * | 2019-12-06 | 2020-04-17 | 佛山众塑联供应链服务有限公司 | Preparation method of modified heavy calcium carbonate for PVC foamed sheet hard plastic product and modified heavy calcium carbonate |
CN111646441A (en) * | 2020-06-09 | 2020-09-11 | 山东科技大学 | Processing method for refining non-metallic minerals |
CN113136108A (en) * | 2021-04-02 | 2021-07-20 | 湖北工业大学 | Preparation method of superfine inorganic micro powder modified asphalt |
-
2006
- 2006-12-08 CN CN 200610136836 patent/CN1962766A/en active Pending
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101775238B (en) * | 2010-01-29 | 2013-01-09 | 大连友兰企业集团有限公司 | Active extra-fine grinding calcium carbonate processing method |
CN102675920B (en) * | 2012-05-15 | 2013-12-25 | 福建丰力机械科技有限公司 | Ionization adsorption type powder modifying method and device |
CN102675920A (en) * | 2012-05-15 | 2012-09-19 | 福建丰力机械科技有限公司 | Ionization adsorption type powder modifying method and device |
CN103554704A (en) * | 2013-07-02 | 2014-02-05 | 安徽金阳电器科技发展有限责任公司 | Modified calcium carbonate for anti-ultraviolet electric cable material, and preparation method thereof |
CN103613956B (en) * | 2013-11-25 | 2016-02-03 | 江苏联瑞新材料股份有限公司 | The preparation method of mechanical-chemical modification silicon powder |
CN103613956A (en) * | 2013-11-25 | 2014-03-05 | 连云港东海硅微粉有限责任公司 | Preparation method of mechanochemical modified silica micropowder |
CN103804953A (en) * | 2013-12-10 | 2014-05-21 | 辽宁亿龙矿业股份有限公司 | Method for preparing ultrafine surface modified dolomite |
CN103804953B (en) * | 2013-12-10 | 2015-09-09 | 辽宁亿龙矿业股份有限公司 | The preparation method of ultra-fine surface modification rhombspar |
CN104745153A (en) * | 2013-12-31 | 2015-07-01 | 中国石油天然气集团公司 | Barite micro-powder for drilling fluid and preparation method of concentrated liquor of barite micro-powder |
CN104479410A (en) * | 2014-11-03 | 2015-04-01 | 重庆和泰塑胶股份有限公司 | Calcium carbonate surface treatment method |
CN104910649A (en) * | 2015-04-23 | 2015-09-16 | 信阳核工业恒达实业公司 | Quartz powder surface active composite modification method |
CN107033633A (en) * | 2017-03-16 | 2017-08-11 | 湖南金马新材料科技有限公司 | A kind of natural powdery quartz is brightened, shaping, the technology of modified integration |
CN107035008B (en) * | 2017-04-05 | 2020-02-18 | 天津市建筑材料科学研究院有限公司 | Multilayer aerogel fiber felt and wet method composite preparation method thereof |
CN107035008A (en) * | 2017-04-05 | 2017-08-11 | 天津市建筑材料科学研究院 | A kind of cladding aeroge fibrofelt and its wet method composite preparation process |
CN107986694A (en) * | 2017-12-18 | 2018-05-04 | 桂林良物造日用品有限公司 | A kind of diatomite foot pad and preparation method thereof |
CN107986694B (en) * | 2017-12-18 | 2021-05-28 | 桂林良物造日用品有限公司 | Diatomite floor mat and preparation method thereof |
CN111019396A (en) * | 2019-12-06 | 2020-04-17 | 佛山众塑联供应链服务有限公司 | Preparation method of modified heavy calcium carbonate for PVC foamed sheet hard plastic product and modified heavy calcium carbonate |
CN111005222A (en) * | 2019-12-12 | 2020-04-14 | 湖北冯家山硅纤有限公司 | Surface treatment method of superfine and overlong silicon fiber |
CN111005222B (en) * | 2019-12-12 | 2022-09-13 | 湖北冯家山硅纤有限公司 | Surface treatment method of superfine and overlong silicon fiber |
CN111646441A (en) * | 2020-06-09 | 2020-09-11 | 山东科技大学 | Processing method for refining non-metallic minerals |
CN113136108A (en) * | 2021-04-02 | 2021-07-20 | 湖北工业大学 | Preparation method of superfine inorganic micro powder modified asphalt |
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