CN101857238B - Preparation method of tourmaline superfine powder for spinning - Google Patents
Preparation method of tourmaline superfine powder for spinning Download PDFInfo
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- CN101857238B CN101857238B CN2009100645782A CN200910064578A CN101857238B CN 101857238 B CN101857238 B CN 101857238B CN 2009100645782 A CN2009100645782 A CN 2009100645782A CN 200910064578 A CN200910064578 A CN 200910064578A CN 101857238 B CN101857238 B CN 101857238B
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Abstract
The invention discloses a preparation method of tourmaline superfine powder for spinning, which comprises the following steps: dispersing and pulping: pre-dispersing the coarse ground tourmaline raw material and water in a stirring and dispersing tank to prepare pulp to obtain pulp; wet superfine grinding: pumping the obtained slurry into a grinding medium material stirring mill for circularly grinding ores; thirdly, grading: diluting the ground slurry, then grading, dividing fine-fraction materials with the particle size distribution d50 being less than or equal to 0.8 mu m into qualified products, and returning coarse-fraction materials to be reground; centrifugally separating to obtain filter mud; drying; sixthly, scattering: scattering the dried material by using airflow to obtain a qualified dry powder product; and seventhly, packaging the finished product. According to the invention adopting the technical scheme, the horizontal spiral classifier is introduced, and the materials are classified in time when the wet grinding reaches the grinding limit, so that the grinding efficiency can be greatly improved, the proportion of large particles in the powder is effectively reduced, and the tourmaline superfine powder for spinning with narrow particle size distribution is obtained.
Description
Technical field
The invention belongs to nonmetalliferous ore superfine powder preparation field, particularly a kind of preparation method of superfine tourmaline powder for weaving.
Background technology
The purposes of nonmetallic mineral material is very extensive, relates to the every field of national economy.Along with science and technology development, many Industrial products require mineral material to super-refinement, functionalization, compoundization and seriation development.The non-metallic mineral powder Development of Materials also is like this.At present, the superfine powder of 1～10 common μ m can not satisfy the needs of certain fields science and production.Submicron and nano nonmetal mineral powder material have become the focus of scientific research and enterprise production.
The tourmalinite mineral are the emerging environmental friendliness industrial minerals in the nonmetallic minerals resource; Have many excellent properties such as spontaneous polarization, high temperature resistant, acid and alkali-resistance, raising ambient air negative ion concentration, be widely used in fields such as trade sales coating, chemical fibre, water treatment, electromagnetic shielding, ocean protective system.
Tourmalinite is the aluminosilicate of boracic; Owing to have single pole axis in its crystalline structure; Tourmalinite has pyroelectricity and piezoelectricity simultaneously, and the variation of outside temperature, pressure all can make its crystalline structure produce distortion along the c direction of principal axis, its positive and negative charge center is not coincided and has electrode; Cause the generation of polarization charge, show in tourmalinite surface thickness tens micrometer ranges to have electrostatic field.The environmental functional of tourmalinite promptly comes from himself institute static electrification field.
Tourmalinite is used for the textile chemical fiber field, and granularity more requires size-grade distribution narrow more good more except requiring median size less than 1 μ m, and oarse-grained existence all produces detrimentally affect to the production technique and the use properties of chemical fibre.Because tourmalinite hardness is 7.2～7.5, and be the polar crystal material, can exist after being worked into certain fineness that the super-fine technology difficulty is bigger, through selecting suitable dispersion agent for use and combining fine graded technology can solve this difficult problem seriously from agglomeration.
Summary of the invention
The object of the present invention is to provide that a kind of technological operation is easy, the preparation method of the superfine tourmaline powder for weaving of constant product quality.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
The present invention includes following steps:
1. disperse slurrying: tourmalinite coarse ground material and water are carried out pre-dispersed slurrying in the dispersed with stirring jar, obtain slurry;
2. wet ultra-fine grinding: the slurry of gained is pumped into the ore grinding that circulates in mill Jie material stirring mill;
3. classification: carry out classification after the dilution of slurry after will grinding, the fine fraction material of size-grade distribution d50≤0.8 μ m is divided into specification product, the coarse fraction material returns to be regrinded;
4. spinning: will filter through whizzer at the specification product that step obtains in 3., obtain filter mud;
5. dry: as described filter mud to be pushed the electric heating kiln carry out drying;
6. break up: dried material by air flow is broken up, finally obtain qualified power-product;
7. finished product packing: with qualified power-product splitting encapsulation.
More particularly, step 1. in, the concentration of the tourmalinite coarse ground material in the said slurry is 50%～60%.
Step 2. in, the tourmalinite coarse ground material is 100: 500～600 with the mass ratio of mill Jie material.
And, step 2. in, mill Jie material is any one in zirconium white or the zirconium silicate.
The particle diameter of above-mentioned mill Jie material is 2～10mm.
In addition, step 3. in, the slurry after grinding is diluted to 15%～20%.
Step 3. in, the dilution of the slurry after grinding back is got into the horizontal spiral grading machine carries out classification, tell specification product.
Adopt the present invention of technique scheme; Through introducing the horizontal spiral grading machine, when wet grinding reaches the grinding limit, material is carried out and time stage, can greatly improve mill efficiency; Effectively reduce oarse-grained ratio in the powder, obtain the superfine tourmaline powder for weaving of narrow particle size distribution.
Embodiment
Embodiment 1
The present invention includes following steps:
1. disperse slurrying: tourmalinite coarse ground material and water are carried out pre-dispersed slurrying in the dispersed with stirring jar, obtain tourmalinite coarse ground material concentration and be 50%～60% slurry.
2. wet ultra-fine grinding: the slurry of gained is pumped into the ore grinding that circulates in mill Jie material stirring mill of zirconium white or zirconium silicate, wherein, tourmalinite is 100: 500～600 with the mass ratio of mill Jie material, and the particle diameter of mill Jie material is 2～10mm.
3. classification: after the slurry after will grinding is diluted to 15%～20%, gets into the horizontal spiral grading machine and carry out classification, the fine fraction material of size-grade distribution d50≤0.8 μ m is divided into specification product, the coarse fraction material returns to be regrinded.
4. spinning: will filter through whizzer at the specification product that step obtains in 3., obtain filter mud;
5. dry: as described filter mud to be pushed the electric heating kiln carry out drying;
6. break up: dried material by air flow is broken up, finally obtain qualified power-product;
7. finished product packing: with qualified power-product splitting encapsulation.
Embodiment 2
Present embodiment may further comprise the steps:
1. disperse slurrying: 325 order tourmalinite raw material 200kg and 200kg water are dropped into stirring at low speed dispersion in the mixing vessels, obtain slurry, thereby the concentration of tourmalinite coarse ground material is 50%.
2. wet ultra-fine grinding: pumping into after being uniformly dispersed in the high speed medium stirring mill, stir built-in 1000kg zirconium white mill pearl in the mill, is 100: 500 thereby make the tourmalinite and the mass ratio of mill Jie material, and slurry closed cycle in stirring mill and mixing vessels was ground 60 hours.The particle diameter of above-mentioned mill Jie material zirconium white mill pearl is 2～10mm, and promptly the scope of zirconium white mill pearl can be among 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, the 10mm any one.
3. classification: after the slurry after will grinding is diluted to 15%, gets into the horizontal spiral grading machine and carry out classification, the fine fraction material of size-grade distribution d50≤0.8 μ m is divided into specification product, the coarse fraction material returns to be regrinded.
4. spinning: will filter through whizzer at the specification product that step obtains in 3., obtain filter mud;
5. dry: as described filter mud to be pushed the electric heating kiln carry out drying;
6. break up: dried material by air flow is broken up, finally obtain qualified power-product;
7. finished product packing: with qualified power-product splitting encapsulation.
The finished product results of grain size analysis is: d50=0.797 μ m, d90=1.937 μ m, maximum particle diameter 3.991 μ m, product granularity satisfy weaving fully with requiring; The used test instrument is a Britain Ma Erwen laser particle size distribution tests appearance.
The finished product negative ion concentration is detected by building material industry environmental monitoring center, and test result is 9.37 * 10
3Individual/s.g, testing apparatus is a still air ion tester, and test basis is JC/T 1016-2006 " testing method of material anion-generating capacity ".
Embodiment 3
Present embodiment may further comprise the steps:
1. disperse slurrying: 325 order tourmalinite raw material 210kg and 190kg water are dropped into stirring at low speed dispersion in the mixing vessels, obtain slurry, thereby the concentration of tourmalinite coarse ground material is 52.5%.
2. wet ultra-fine grinding: pump into after being uniformly dispersed in the high speed medium stirring mill; Stir built-in 1100kg zirconium white mill pearl in the mill; Thereby make the tourmalinite and the mass ratio of mill Jie material be about 100: 525, slurry closed cycle in stirring mill and mixing vessels was ground 70 hours.The particle diameter of above-mentioned mill Jie material zirconium white mill pearl is 2～10mm, and promptly the scope of zirconium white mill pearl can be among 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, the 10mm any one.
3. classification: after the slurry after will grinding is diluted to 16%, gets into the horizontal spiral grading machine and carry out classification, the fine fraction material of size-grade distribution d50≤0.8 μ m is divided into specification product, the coarse fraction material returns to be regrinded.
4. spinning: will filter through whizzer at the specification product that step obtains in 3., obtain filter mud;
5. dry: as described filter mud to be pushed the electric heating kiln carry out drying;
6. break up: dried material by air flow is broken up, finally obtain qualified power-product;
7. finished product packing: with qualified power-product splitting encapsulation.
The finished product results of grain size analysis is: d50=0.766 μ m, d90=1.891 μ m, maximum particle diameter 3.814 μ m, product granularity satisfy weaving fully with requiring; The used test instrument is a Britain Ma Erwen laser particle size distribution tests appearance.
The finished product negative ion concentration is detected by building material industry environmental monitoring center, and test result is 8.43 * 10
3Individual/s.g, testing apparatus is a still air ion tester, and test basis is JC/T 1016-2006 " testing method of material anion-generating capacity ".
Embodiment 4
Present embodiment may further comprise the steps:
1. disperse slurrying: 325 order tourmalinite raw material 220kg and 180kg water are dropped into stirring at low speed dispersion in the mixing vessels, obtain slurry, thereby the concentration of tourmalinite coarse ground material is 55%.Add 2.2kg ZX-I dispersion agent DC-40 simultaneously, pump into after being uniformly dispersed in the high speed medium stirring mill.
2. wet ultra-fine grinding: pump into after being uniformly dispersed in the high speed medium stirring mill; Stir built-in 1200kg zirconium white mill pearl in the mill; Thereby make the tourmalinite and the mass ratio of mill Jie material be about 100: 546, slurry closed cycle in stirring mill and mixing vessels was ground 40 hours.The particle diameter of above-mentioned mill Jie material zirconium white mill pearl is 2～10mm, and promptly the scope of zirconium white mill pearl can be among 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, the 10mm any one.
3. classification: after the slurry after will grinding is diluted to 17%, gets into the horizontal spiral grading machine and carry out classification, the fine fraction material of size-grade distribution d50≤0.8 μ m is divided into specification product, the coarse fraction material returns to be regrinded.
4. spinning: will filter through whizzer at the specification product that step obtains in 3., obtain filter mud;
5. dry: as described filter mud to be pushed the electric heating kiln carry out drying;
6. break up: dried material by air flow is broken up, finally obtain qualified power-product;
7. finished product packing: with qualified power-product splitting encapsulation.
The finished product results of grain size analysis is: d50=0.525 μ m, d90=1.771 μ m, maximum particle diameter 3.726 μ m, product granularity satisfy weaving fully with requiring; The used test instrument is a Britain Ma Erwen laser particle size distribution tests appearance.
The finished product negative ion concentration is detected by building material industry environmental monitoring center, and test result is 7.98 * 10
3Individual/s.g, testing apparatus is a still air ion tester, and test basis is JC/T 1016-2006 " testing method of material anion-generating capacity ".
Embodiment 5
Present embodiment may further comprise the steps:
1. disperse slurrying: 325 order tourmalinite raw material 230kg and 170kg water are dropped into stirring at low speed dispersion in the mixing vessels, obtain slurry, thereby the concentration of tourmalinite coarse ground material is 57.5%.Add 2.3kg ZX-I dispersion agent DC-40 simultaneously, pump into after being uniformly dispersed in the high speed medium stirring mill.
2. wet ultra-fine grinding: pump into after being uniformly dispersed in the high speed medium stirring mill; Stir built-in 1300kg zirconium white mill pearl in the mill; Thereby make the tourmalinite and the mass ratio of mill Jie material be about 100: 566, slurry closed cycle in stirring mill and mixing vessels was ground 40 hours.The particle diameter of above-mentioned mill Jie material zirconium white mill pearl is 2～10mm, and promptly the scope of zirconium white mill pearl can be among 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, the 10mm any one.
3. classification: after the slurry after will grinding is diluted to 18%, gets into the horizontal spiral grading machine and carry out classification, the fine fraction material of size-grade distribution d50≤0.8 μ m is divided into specification product, the coarse fraction material returns to be regrinded.
4. spinning: will filter through whizzer at the specification product that step obtains in 3., obtain filter mud;
5. dry: as described filter mud to be pushed the electric heating kiln carry out drying;
6. break up: dried material by air flow is broken up, finally obtain qualified power-product;
7. finished product packing: with qualified power-product splitting encapsulation.
The finished product results of grain size analysis is: d50=0.632 μ m, d90=1.882 μ m, maximum particle diameter 3.897 μ m, product granularity satisfy weaving fully with requiring; The used test instrument is a Britain Ma Erwen laser particle size distribution tests appearance.
The finished product negative ion concentration is detected by building material industry environmental monitoring center, and test result is 7.85 * 10
3Individual/s.g, testing apparatus is a still air ion tester, and test basis is JC/T 1016-2006 " testing method of material anion-generating capacity ".
Embodiment 6
Present embodiment may further comprise the steps:
1. disperse slurrying: 325 order tourmalinite raw material 300kg and 200kg water are dropped into stirring at low speed dispersion in the mixing vessels, obtain slurry, thereby the concentration of tourmalinite coarse ground material is 60%.Add 3kg ZX-I dispersion agent DC-40 simultaneously, pump into after being uniformly dispersed in the high speed medium stirring mill.
2. wet ultra-fine grinding: pump into after being uniformly dispersed in the high speed medium stirring mill; Stir built-in 1800kg zirconium white mill pearl in the mill; Thereby make the tourmalinite and the mass ratio of mill Jie material be about 100: 600, slurry closed cycle in stirring mill and mixing vessels was ground 40 hours.The particle diameter of above-mentioned mill Jie material zirconium white mill pearl is 2～10mm, and promptly the scope of zirconium white mill pearl can be among 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, the 10mm any one.
3. classification: after the slurry after will grinding is diluted to 20%, gets into the horizontal spiral grading machine and carry out classification, the fine fraction material of size-grade distribution d50≤0.8 μ m is divided into specification product, the coarse fraction material returns to be regrinded.
4. spinning: will filter through whizzer at the specification product that step obtains in 3., obtain filter mud;
5. dry: as described filter mud to be pushed the electric heating kiln carry out drying;
6. break up: dried material by air flow is broken up, finally obtain qualified power-product;
7. finished product packing: with qualified power-product splitting encapsulation.
The finished product results of grain size analysis is: d50=0.726 μ m, d90=1.947 μ m, maximum particle diameter 4.477 μ m, product granularity satisfy weaving fully with requiring; The used test instrument is a Britain Ma Erwen laser particle size distribution tests appearance.
The finished product negative ion concentration is detected by building material industry environmental monitoring center, and test result is 8.69 * 10
3Individual/s.g, testing apparatus is a still air ion tester, and test basis is JC/T 1016-2006 " testing method of material anion-generating capacity ".
Claims (4)
1. the preparation method of a superfine tourmaline powder for weaving is characterized in that, it may further comprise the steps:
1. disperse slurrying: tourmalinite coarse ground material and water are carried out pre-dispersed slurrying in the dispersed with stirring jar, obtain slurry, the concentration of the tourmalinite coarse ground material in the said slurry is 50%～60%;
2. wet ultra-fine grinding: the slurry of gained is pumped into the ore grinding that circulates in mill Jie material stirring mill;
3. classification: the slurry after will grinding is diluted to 15%～20%, gets into the horizontal spiral grading machine then and carries out classification, and the fine fraction material of size-grade distribution d50≤0.8 μ m is divided into specification product, and the coarse fraction material returns to be regrinded;
4. spinning: will filter through whizzer at the specification product that step obtains in 3., obtain filter mud;
5. dry: as described filter mud to be pushed electrical kiln carry out drying;
6. break up: dried material by air flow is broken up, finally obtain qualified power-product;
7. finished product packing: with qualified power-product splitting encapsulation.
2. the preparation method of superfine tourmaline powder for weaving according to claim 1 is characterized in that: step 2. in, the tourmalinite coarse ground material is 100: 500～600 with the mass ratio of mill Jie material.
3. the preparation method of superfine tourmaline powder for weaving according to claim 2 is characterized in that: step 2. in, described mill Jie material is any one in zirconium white or the zirconium silicate.
4. the preparation method of superfine tourmaline powder for weaving according to claim 3, it is characterized in that: the particle diameter of said mill Jie material is 2～10mm.
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| CN2009100645782A CN101857238B (en) | 2009-04-08 | 2009-04-08 | Preparation method of tourmaline superfine powder for spinning |
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| CN2009100645782A CN101857238B (en) | 2009-04-08 | 2009-04-08 | Preparation method of tourmaline superfine powder for spinning |
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| CH712233A2 (en) * | 2016-03-15 | 2017-09-15 | Arcolor Ag | Process for the preparation of dispersions with a defined particle size. |
| CN107720768B (en) * | 2017-04-07 | 2019-12-27 | 中国地质大学（北京） | Method for synthesizing tourmaline by solid phase method |
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| CN1425503A (en) * | 2002-12-26 | 2003-06-25 | 华东理工大学 | Process for processing nano grade super fine tourmaline micro crystal with negative ion generating function |
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| CN1425503A (en) * | 2002-12-26 | 2003-06-25 | 华东理工大学 | Process for processing nano grade super fine tourmaline micro crystal with negative ion generating function |
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