CN104858021B - The surface treatment method of quartz sand - Google Patents
The surface treatment method of quartz sand Download PDFInfo
- Publication number
- CN104858021B CN104858021B CN201510307525.4A CN201510307525A CN104858021B CN 104858021 B CN104858021 B CN 104858021B CN 201510307525 A CN201510307525 A CN 201510307525A CN 104858021 B CN104858021 B CN 104858021B
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- Prior art keywords
- quartz sand
- sand powder
- ball mill
- powder
- silane coupler
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/06—Selection or use of additives to aid disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
- B02C23/22—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating with recirculation of material to crushing or disintegrating zone
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Silicon Compounds (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to the modified technique technical field of quartz sand, the specifically related to surface treatment method of quartz sand, it includes feeding intake, simultaneous grinding and surface modification treatment, solidification, the steps such as air current classifying, first the quartz sand of different-grain diameter is once put into ball mill and ground, and carry out surface modification treatment while grinding, heated using the heat produced by the material collision friction in ball mill cavity, and controlling reaction temperature is at 70 ~ 80 DEG C, silane coupler is coated on quartz sand powder surface and carry out coupling reaction, then quartz sand powder carries out air current classifying by grader, quartz sand powder is set gradually to be cooled to 22 ~ 28 DEG C during air current classifying, so that silane coupler is solidificated in the surface of quartz sand powder, the Modified Quartz Sand powder of particle diameter needed for being obtained after air current classifying.Compared with prior art, the present invention has the advantages that technique is simple, yield is high, realize consecutive production and can reduce cost, safety and environmental protection.
Description
Technical field
The present invention relates to the modified technique technical field of quartz sand, and in particular to the surface treatment method of quartz sand.
Background technology
Quartz sand is the broken quartz particles processed of quartz warp, and its main component is SiO2, is a kind of hard, resistance to
Mill, the silicate mineral of stable chemical performance, thus, quartz sand is widely used in building, glass as important industrial mineral raw material
Numerous industrial circles such as glass, casting, ceramics and refractory material, metallurgy, chemical industry.
Because quartz sand has the advantages that hard, wear-resisting, chemical stability is good, and its raw material be extremely readily available, into
This is low, and in artificial quartz stone plate industry, quartz sand occupies an important position.At present, artificial quartz in lump is by quartz sand, no
The additives such as saturated resin, auxiliary agent are constituted, but because quartz sand is different from the interfacial property of organic polymer resin material, it is compatible
Property it is poor, thus with being difficult to dispersed wherein, can also make the shortcomings of some physicochemical properties of its product have declined.
Therefore, in order to improve the addition of quartz sand, its due functional effect is reached, quartz sand surface must be just modified,
To improve the physicochemical characteristics on its surface, strengthen its compatibility between resin, improve product in production blending process
Dispersiveness, strengthen its with the associativity, feature and mechanical strength of organic polymer resin etc. combination property.
In the prior art, the process of surface treatment of quartz sand is first quartz sand to be ground to form different-grain diameter size
Quartz sand powder, is then classified to the quartz sand powder of different-grain diameter size, and filters out the quartz of required grain size specification
Emery dust body, then adds silane coupler as surface modifier, prepares Modified Quartz Sand again.However, above-mentioned quartz sand
Handling process has following defect：1）It is multiple that whole preparation technology needs sequentially pass through grinding, Sieving and casing, coupling agent modified etc.
Step, and the quartz sand that Particle size requirements are not met after grinding needs to grind again again, thus whole complex process, it is impossible to continous way
Batch production, cause that the production cycle is longer, yield poorly, production cost it is high；2）Need to dissolve using organic solvent in modifying process
Scattered silane coupler, and need to be heated to 100 ~ 150 DEG C of high temperature in coupling reaction process, so as to cause following process
Danger, and using organic solvent not environmentally；3）In surface treatment process, because mobility is poor, easily occurs quartz sand
Powder reuniting forms powder ball and causes the change of diameter of particle, not only have impact on the accuracy of diameter of particle but also has a strong impact on production
The performance of product.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide, a kind of technique is simple, yield is high, realize continuity
Produce and cost, the surface treatment method of the quartz sand of safety and environmental protection can be reduced.
To achieve these goals, the present invention is adopted the following technical scheme that：
The surface treatment method of quartz sand is provided, it is characterised in that：Including following process step：
（1）Feed intake：
By the quartz sand of different-grain diameter size with certain rate of feeding input ball mill；
（2）Simultaneous grinding and surface modification treatment：
Silane coupler is directly sprayed at dog-house in ball mill cavity, it is 70 to control the temperature in ball mill cavity
~ 80 DEG C, the consumption of the silane coupler is 0.3%- ~ 0.45% of the quartz sand weight, and material enters simultaneously in ball mill
The quartz sand powder of different-grain diameter size is obtained after row grinding and coupling reaction；
（3）Solidification：
By step（2）The quartz sand powder obtained is delivered to grader under the negative pressure state that air-introduced machine is produced,
During air current classifying, the temperature of quartz sand powder is gradually decreased down 22 ~ 28 DEG C, silane coupler is solidificated in quartz sand powder
The surface of body, obtains the Modified Quartz Sand powder of different-grain diameter size；
（4）Air current classifying：
By step（3）Constant negative pressure shape of the Modified Quartz Sand powder of the different-grain diameter size obtained after solidification in grader
Air current classifying is carried out under state, the rotating speed for controlling grader is 100 ~ 1000r/min；
（5）Collect：
By step（4）The Modified Quartz Sand powder of the required particle size obtained after classification is collected into collector, standby；
（6）Reprocessing：
By step（4）The Modified Quartz Sand powder of the undesirable greater particle size obtained after classification is back to ball mill
Charging aperture, repeating said steps（1）Extremely（5）.
It is preferred that, the step（1）In, rate of feeding is 3 ~ 8 t/h.
It is preferred that, the step（2）In, it is 73 ~ 78 DEG C to control the temperature in ball mill cavity, the silane coupler
Consumption is 0.35%- ~ 0.45% of the quartz sand weight.
It is preferred that, the step（2）In, it is 75 DEG C, the use of the silane coupler to control the temperature in ball mill cavity
Measure as the 0.38% of the quartz sand weight.
It is preferred that, the step（3）In, the temperature of control quartz sand powder gradually decreases down 24 ~ 26 DEG C.
It is preferred that, the step（4）In, the rotating speed for controlling grader is 300 ~ 800r/min r/min.
The beneficial effects of the invention are as follows：
The surface treatment method of the quartz sand of the present invention, the quartz sand of different-grain diameter is once put into ball mill and ground,
And sprinkling silane coupler carries out surface modification treatment while grinding, utilizes the material collision friction institute in ball mill cavity
The heat of generation is heated, and controlling reaction temperature is at 70 ~ 80 DEG C, silane coupler is coated on quartz sand powder surface and is entered
Row coupling reaction, then quartz sand powder by grader carry out air current classifying, quartz sand powder is made during air current classifying
22 ~ 28 DEG C are gradually cooled to, so that silane coupler is solidificated in the surface of quartz sand powder, can be obtained after air current classifying
The Modified Quartz Sand powder of required particle diameter.Compared with prior art, with advantages below：
（1）The quartz sand of the present invention carries out surface modification treatment simultaneously in grinding so that the efficiency of quartz sand surface processing
It is synchronous with grinding efficiency, and solidification and sizing screening are once completed subsequently in grader, so as to enormously simplify whole work
Sequence, shortens the production cycle, significantly improves yield, and the yield of Modified Quartz Sand powder can reach about 10 ton hours, Neng Gougeng
The demand of production in enormous quantities is met well；
（2）The present invention carries out surface modification treatment, and Optimizing Process Parameters while grinding（By controlling rate of feeding
Etc. step）, because quartz sand powder is constantly rotated and vibrated in ball mill, significantly improve quartz sand powder surface
Mobility in processing procedure, this is both favorably improved grinding efficiency, can be prevented effectively from what quartz sand powder was reunited again
Phenomenon, it is ensured that the quality of Modified Quartz Sand powder；
（3）The present invention is first ground and surface modification treatment, then by grader and controls its rational rotating speed, is carried out
Solidification and the sizing screening of particle diameter, it can be ensured that the accuracy of the Modified Quartz Sand diameter of particle of screening；
（4）The present invention is in surface treatment process, it is not necessary to be applicable in any organic solvent, and reaction by ball milling
Heat in machine produced by material itself collision friction is heated, and controlling reaction temperature is at 70 ~ 80 DEG C, then in grader
Air current classifying during quartz sand powder is gradually cooled to 22 ~ 28 DEG C, thus, without be heated in whole technique, its
More safe and environmental protection, energy consumption is low；
（5）The method of the present invention, once completes grinding and surface modification treatment, by grader classifying screen in ball mill
After choosing, returned again to for not meeting the Modified Quartz Sand powder of Particle size requirements to ball mill reprocessing, it is achieved thereby that continous way
Production, substantially increases production efficiency, production cost is declined to a great extent.
Embodiment
The invention will be further described with the following Examples.
Embodiment 1.
The surface treatment method of the quartz sand of the present invention, including following process step：
（1）Feed intake：
By the quartz sand of different-grain diameter size with 3 t/h rate of feeding input ball mill；
（2）Simultaneous grinding and surface modification treatment：
Silane coupler is directly sprayed at dog-house in ball mill cavity, it is 75 to control the temperature in ball mill cavity
DEG C, the consumption of the silane coupler is the 0.38% of the quartz sand weight, and material is ground and even simultaneously in ball mill
The quartz sand powder of different-grain diameter size is obtained after connection reaction；
（3）Solidification：
By step（2）The quartz sand powder obtained is delivered to grader under the negative pressure state that air-introduced machine is produced,
During air current classifying, the temperature of quartz sand powder is gradually decreased down 25 DEG C, silane coupler is solidificated in quartz sand powder
Surface, obtain different-grain diameter size Modified Quartz Sand powder；
（4）Air current classifying：
By step（3）Constant negative pressure shape of the Modified Quartz Sand powder of the different-grain diameter size obtained after solidification in grader
Air current classifying is carried out under state, the rotating speed for controlling grader is 350r/min；
（5）Collect：
By step（4）The Modified Quartz Sand powder of the required particle size obtained after classification is collected into collector, standby；
（6）Reprocessing：
By step（4）The Modified Quartz Sand powder of the undesirable greater particle size obtained after classification is back to ball mill
Charging aperture, repeating said steps（1）Extremely（5）.
Embodiment 2.
The surface treatment method of the quartz sand of the present invention, including following process step：
1）Feed intake：
By the quartz sand of different-grain diameter size with 4.5 t/h rate of feeding input ball mill；
（2）Simultaneous grinding and surface modification treatment：
Silane coupler is directly sprayed at dog-house in ball mill cavity, it is 73 to control the temperature in ball mill cavity
DEG C, the consumption of the silane coupler is the 0.42% of the quartz sand weight, and material is ground and even simultaneously in ball mill
The quartz sand powder of different-grain diameter size is obtained after connection reaction；
（3）Solidification：
By step（2）The quartz sand powder obtained is delivered to grader under the negative pressure state that air-introduced machine is produced,
During air current classifying, the temperature of quartz sand powder is gradually decreased down 28 DEG C, silane coupler is solidificated in quartz sand powder
Surface, obtain different-grain diameter size Modified Quartz Sand powder；
（4）Air current classifying：
By step（3）Constant negative pressure shape of the Modified Quartz Sand powder of the different-grain diameter size obtained after solidification in grader
Air current classifying is carried out under state, the rotating speed for controlling grader is 500r/min；
（5）Collect：
By step（4）The Modified Quartz Sand powder of the required particle size obtained after classification is collected into collector, standby；
（6）Reprocessing：
By step（4）The Modified Quartz Sand powder of the undesirable greater particle size obtained after classification is back to ball mill
Charging aperture, repeats the above steps（1）Extremely（5）.
Embodiment 3.
The surface treatment method of the quartz sand of the present invention, including following process step：
（1）Feed intake：
By the quartz sand of different-grain diameter size with 6 t/h rate of feedings input ball mill；
（2）Simultaneous grinding and surface modification treatment：
Silane coupler is directly sprayed at dog-house in ball mill cavity, it is 78 to control the temperature in ball mill cavity
DEG C, the consumption of the silane coupler is the 0.45% of the quartz sand weight, and material is ground and even simultaneously in ball mill
The quartz sand powder of different-grain diameter size is obtained after connection reaction；
（3）Solidification：
By step（2）The quartz sand powder obtained is delivered to grader under the negative pressure state that air-introduced machine is produced,
During air current classifying, the temperature of quartz sand powder is gradually decreased down 23 DEG C, silane coupler is solidificated in quartz sand powder
Surface, obtain different-grain diameter size Modified Quartz Sand powder；
（4）Air current classifying：
By step（3）Constant negative pressure shape of the Modified Quartz Sand powder of the different-grain diameter size obtained after solidification in grader
Air current classifying is carried out under state, the rotating speed for controlling grader is 600r/min；
（5）Collect：
By step（4）The Modified Quartz Sand powder of the required particle size obtained after classification is collected into collector, standby；
（6）Reprocessing：
By step（4）The Modified Quartz Sand powder of the undesirable greater particle size obtained after classification is back to ball mill
Charging aperture, repeats the above steps（1）Extremely（5）.
Embodiment 4.
The surface treatment method of the quartz sand of the present invention, including following process step：
（1）Feed intake：
By the quartz sand of different-grain diameter size with 6.5 t/h rate of feedings input ball mill；
（2）Simultaneous grinding and surface modification treatment：
Silane coupler is directly sprayed at dog-house in ball mill cavity, it is 75 to control the temperature in ball mill cavity
DEG C, the consumption of the silane coupler is the 0.4% of the quartz sand weight, and material is ground and even simultaneously in ball mill
The quartz sand powder of different-grain diameter size is obtained after connection reaction；
（3）Solidification：
By step（2）The quartz sand powder obtained is delivered to grader under the negative pressure state that air-introduced machine is produced,
During air current classifying, the temperature of quartz sand powder is gradually decreased down 26 DEG C, silane coupler is solidificated in quartz sand powder
Surface, obtain different-grain diameter size Modified Quartz Sand powder；
（4）Air current classifying：
By step（3）Constant negative pressure shape of the Modified Quartz Sand powder of the different-grain diameter size obtained after solidification in grader
Air current classifying is carried out under state, the rotating speed for controlling grader is 750r/min；
（5）Collect：
By step（4）The Modified Quartz Sand powder of the required particle size obtained after classification is collected into collector, standby；
（6）Reprocessing：
By step（4）The Modified Quartz Sand powder of the undesirable greater particle size obtained after classification is back to ball mill
Charging aperture, repeats the above steps（1）Extremely（5）.
Ball mill, air-introduced machine and grader of the above-described embodiment 1 into the surface treatment method of the quartz sand of embodiment 4
It is prior art, is a kind of " automatic control for preparing quartz ultrafine powder referring to Patent No. 200910192820.4, patent name
The patent of invention of control equipment ".
Claims (6)
1. the surface treatment method of quartz sand, it is characterised in that：Including following process step：
（1）Feed intake：
By the quartz sand of different-grain diameter size with 2 ~ 10 t/h rate of feeding input ball mill；
（2）Simultaneous grinding and surface modification treatment：
Silane coupler is directly sprayed at dog-house in ball mill cavity, it is 70 ~ 80 to control the temperature in ball mill cavity
DEG C, the consumption of the silane coupler is 0.3%- ~ 0.45% of the quartz sand weight, and material is ground simultaneously in ball mill
The quartz sand powder of different-grain diameter size is obtained after mill and coupling reaction；
（3）Solidification：
By step（2）The quartz sand powder obtained is delivered to grader under the negative pressure state that air-introduced machine is produced, in air-flow
In classification process, the temperature of quartz sand powder is gradually decreased down 22 ~ 28 DEG C, silane coupler is solidificated in quartz sand powder
Surface, obtains the Modified Quartz Sand powder of different-grain diameter size；
（4）Air current classifying：
By step（3）The Modified Quartz Sand powder of the different-grain diameter size obtained after solidification is under the constant negative pressure state of grader
Air current classifying is carried out, the rotating speed for controlling grader is 100 ~ 1000 r/min；
（5）Collect：
By step（4）The Modified Quartz Sand powder of the required particle size obtained after classification is collected into collector, standby；
（6）Reprocessing：
By step（4）The Modified Quartz Sand powder of the undesirable greater particle size obtained after classification is back to feeding of ball mill
Mouthful, repeating said steps（1）Extremely（5）.
2. the surface treatment method of the quartz sand according to claim 1, it is characterised in that：The step（1）In, throw
Material speed is 3 ~ 8 t/h.
3. the surface treatment method of the quartz sand according to claim 1, it is characterised in that：The step（2）In, control
Temperature in ball mill cavity processed is 73 ~ 78 DEG C, the consumption of the silane coupler for the quartz sand weight 0.35%- ~
0.45%。
4. the surface treatment method of the quartz sand according to claim 3, it is characterised in that：The step（2）In, control
Temperature in ball mill cavity processed is 75 DEG C, and the consumption of the silane coupler is the 0.38% of the quartz sand weight.
5. the surface treatment method of the quartz sand according to claim 1, it is characterised in that：The step（3）In, control
The temperature of quartz sand powder processed gradually decreases down 24 ~ 26 DEG C.
6. the surface treatment method of the quartz sand according to claim 1, it is characterised in that：The step（4）In, control
The rotating speed of grader processed is 300 ~ 800r/min.
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| CN201510307525.4A CN104858021B (en) | 2015-06-08 | 2015-06-08 | The surface treatment method of quartz sand |
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| CN201510307525.4A CN104858021B (en) | 2015-06-08 | 2015-06-08 | The surface treatment method of quartz sand |
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| CN104858021B true CN104858021B (en) | 2017-09-12 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106543773A (en) * | 2016-11-01 | 2017-03-29 | 蚌埠硅基材料产业技术研究院有限公司 | The scale surface treatment method of the superfine quartz powder of median≤2 μm |
| CN108751211A (en) * | 2018-07-07 | 2018-11-06 | 河源市极致知管信息科技有限公司 | A kind of preparation method of Modified Quartz Sand |
| CN109762222A (en) * | 2019-01-09 | 2019-05-17 | 匠欣环保家居用品科技(浙江)有限公司 | Surface has the ground cushion and its processing method of scratch resistant quartz sand layer |
| CN110408237A (en) * | 2019-08-07 | 2019-11-05 | 江苏联瑞新材料股份有限公司 | A kind of woodcare paint clear finish silicon powder and preparation method thereof |
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| CN104858021A (en) | 2015-08-26 |
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