CN103627212A - Preparation method and preparation apparatus for ultrafine heavy calcium coating filler - Google Patents
Preparation method and preparation apparatus for ultrafine heavy calcium coating filler Download PDFInfo
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- CN103627212A CN103627212A CN201310358119.1A CN201310358119A CN103627212A CN 103627212 A CN103627212 A CN 103627212A CN 201310358119 A CN201310358119 A CN 201310358119A CN 103627212 A CN103627212 A CN 103627212A
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Abstract
The invention discloses a preparation method and a preparation apparatus for ultrafine heavy calcium coating filler. The preparation method comprises the following steps: subjecting calcium carbonate mineral raw powder with a particle size of 325 meshes to addition of water, addition of a dispersant, blending and stirring; pumping an obtained substance into a feed hopper through a pump, setting a flow rate by using the feed hopper and allowing the substance to enter into a grinding machine composed of white corundum resin abrasive plates and green silicon carbide resin abrasive plates for grinding; then carrying out screening so as to obtain heavy calcium coating filler with solid content of 70% and with more than 60% of particles having a particle size of less than 2 mu m; and screening out a semi-finished product, pumping the semi-finished product into the hopper again and carrying out secondary grinding. The apparatus comprises a raw material stirring barrel; the raw material stirring barrel is connected with the hopper on a circular millstone through a raw material pump and a pipeline. The apparatus is characterized in that the lower part of the hopper is provided with the circular millstone composed of white corundum resin abrasive plates and green silicon carbide resin abrasive plates, a material receiving groove is arranged at the lower part of the periphery of the circular millstone and is communicated with the inlet of a screening machine through a discharging pipe, the discharge outlet of the screening machine is connected with a material barrel, a material located on a screen of the screening machine flows into a semi-finished product stirring barrel, and the semi-finished product stirring barrel is communicated with the hopper on the circular millstone through a semi-finished product pump and a pipeline.
Description
Technical field
The present invention relates to the wet grinding technology of calcium carbonate, a kind of ultrafine heavy calcium is coated with preparation method and the equipment thereof of cloth filler.
Background technology
Coarse whiting coating filler pigment is to be formed through wet grinding by calcium carbonate minerals such as calcites, is white mineral filler and the coating pigment of commonly using, and is widely used in the industries such as papermaking, coating.
The filler pigment of coarse whiting coating is at present generally to form by the multistage grinding of shredder, the steps such as every one-level all will be passed through in grinding and size mixing, grind, be cushioned, screening, in grinding, to add grinding bead and drip various dispersion agents, technological process more complicated, energy consumption is high, yield poorly, size distribution is wide, inhomogeneous, and labor intensive is many, produces product current consumption per ton more than 140 degree.
Summary of the invention
In order to simplify the production technology of existing calcium carbonate slurry, the present invention proposes preparation method and equipment thereof that a kind of ultrafine heavy calcium is coated with cloth filler.
This ultrafine heavy calcium is coated with the preparation method of cloth filler, by the former powder of particle diameter 325 object calcium carbonate mineral, through adding water, adding dispersion agent, modulation, stir, with pump, throw hopper into, by hopper, set flow and enter in the grinding machine that white fused alumina resin ground plate and green silicon carbide resin ground plate form and grind, then through screening, obtain particle diameter >=60% below 2 μ m, the coarse whiting painting cloth filler of solid content 70%, sieve out work in-process and again pump into hopper, enter regrind.
This ultrafine heavy calcium is coated with the Preparation equipment of cloth filler, comprise a raw material stirring bucket, raw material stirring bucket passes through feedstock pump, hopper on pipeline and circle mill communicates, it is characterized in that, hopper bottom is provided with the round mill of white fused alumina resin ground plate and green silicon carbide resin ground plate composition, in circle mill periphery bottom, be equipped with the groove that connects material, the entrance of groove by discharge nozzle and sieve apparatus that connect material communicates, under the discharge port of sieve apparatus, be connected to charging basket, inflow work in-process agitation vat is divided on the sieve top of sieve apparatus, work in-process agitation vat is by work in-process pump, hopper on pipeline and circle mill communicates.
The lower wall of circle mill is Moving plate, and there is main shaft centre, and main shaft is connected with step-down gear, motor, the upper dish of circle mill and the equal diameters of lower wall, and upper dish maintains static, and is placed on lower wall, has feed port in the middle of upper dish.
The wear resistance of green silicon carbide resin ground plate is higher than the wear resistance of white fused alumina resin ground plate, and the working strength of lower wall is higher than the working strength of upper dish, the round mill that white fused alumina resin ground plate and green silicon carbide resin ground plate form specifically has following three kinds of forms: one, upper and lower two is all green silicon carbide resin ground plate, and being applicable to ore hardness is more than 3.2 marbles; Two, upper slice be white fused alumina resin ground plate, lower is green silicon carbide resin ground plate, is applicable to marble or the calcite of ore hardness between 2.8-3.2; Three, upper and lower two is all white fused alumina resin ground plate, and being applicable to ore hardness is the calcite below 2.8.
The resin that the abrasive material that white fused alumina resin ground plate and green silicon carbide resin ground plate are mainly comprised of white fused alumina or green silicon carbide and resol and polyimide resin form through mixing, compression moulding, high warm hardening forms, hardness is high, interior tissue is even and fine and close, wear resistance is good, the composition of resin ground plate is composed as follows: the weight of A, resene is the 37-60% of abrasive sheet gross weight, the weight of B, abrasive material class is the 37-60% of abrasive sheet gross weight, resin ground plate bulk density 2.8-3.2g/cm
3, hardness HRC50-65, uniformity of hardness HRC ± 3, the working-surface of abrasive sheet be carved be evenly distributed radially or tangential groove, groove depth 1-5mm.
The dispersion agent adding in raw material stirring bucket is the combination of following two kinds of dispersion agents, their weight respectively accounts for 50%, one, dispersion agent 5040, two, dispersion agent: the polymeric dispersant SN5027 of polycarboxylate sodium's type dispersion agent SN5040 or ammonium polyacrylate salt, total umber of dispersion agent is 0.1% of slurry solid content.
Advantage of the present invention is that technical process is simple, and white fused alumina resin ground plate and green silicon carbide resin ground plate wear resistance are good, and working efficiency is high.Coating packing material size narrowly distributing, even, raising coating filler product quality.
Accompanying drawing explanation
Fig. 1 is equipment schematic diagram of the present invention
In figure: 1, raw material stirring bucket, 2, feedstock pump, 3, hopper, 4, the groove that connects material, 5, sieve apparatus, 6, charging basket, 7, lower wall, 8, main shaft, 9, step-down gear, 10, motor, 11, upper dish, 12, feed port, 13, work in-process agitation vat, 14, work in-process pump.
Embodiment
In Fig. 1: this ultrafine heavy calcium is coated with the preparation method of cloth filler, by particle diameter 325 object calcium carbonate mineral raw materials, through adding water, adding dispersion agent, modulation, stirring, with pump, throw in the grinding machine being formed by white fused alumina resin ground plate and green silicon carbide resin ground plate and grind, then through screening, obtain the painting cloth filler of 2 μ m particle diameter≤60%, solid content 70%, sieve out work in-process and again pump into hopper, enter regrind.
This ultrafine heavy calcium is coated with the Preparation equipment of cloth filler, comprise a raw material stirring bucket 1, raw material stirring bucket 1 is by feedstock pump 2, hopper 3 on pipeline and circle mill communicates, hopper 3 bottoms are provided with the round mill of white fused alumina resin ground plate and green silicon carbide resin ground plate composition, in circle mill periphery bottom, be equipped with the groove 4 that connects material, the entrance of groove 4 by discharge nozzle and sieve apparatus 5 that connect material communicates, under the discharge port of sieve apparatus 5, be connected to charging basket 6, inflow work in-process agitation vat 13 is divided on the sieve top of sieve apparatus 5, work in-process agitation vat 13 is by work in-process pump 14, hopper 3 on pipeline and circle mill communicates.
The lower wall 7 of circle mill is Moving plate, and there is main shaft 8 centre, and main shaft 8 is connected with step-down gear 9, motor 10, the circle upper dish 11 of mill and the equal diameters of lower wall 7, and upper dish 11 maintains static, and is placed on lower wall 7, in the middle of upper dish 11, has feed port 12.
The wear resistance of green silicon carbide resin ground plate is higher than the wear resistance of white fused alumina resin ground plate, and the working strength of lower wall is higher than the working strength of upper dish, it is all green silicon carbide resin ground plate that the round mill that white fused alumina resin ground plate and green silicon carbide resin ground plate form specifically has following three kinds of form: embodiment mono-, upper and lower two, and being applicable to ore hardness is more than 3.2 marbles; Embodiment bis-, upper slice be white fused alumina resin ground plate, lower is green silicon carbide resin ground plate, is applicable to marble or the calcite of ore hardness between 2.8-3.2; Embodiment tri-, upper and lower two are white fused alumina resin ground plates, and being applicable to ore hardness is the calcite below 2.8.
The resin that the abrasive material that white fused alumina resin ground plate and green silicon carbide resin ground plate are mainly comprised of white fused alumina or green silicon carbide and resol and polyimide resin form through mixing, compression moulding, high warm hardening forms, hardness is high, interior tissue is even and fine and close, wear resistance is good, the composition of resin ground plate is composed as follows: the weight of A, resene is 50% of abrasive sheet gross weight, the weight of B, abrasive material class is 47% of abrasive sheet gross weight, resin ground plate bulk density 2.8-3.2g/cm
3, hardness HRC50-65, uniformity of hardness HRC ± 3, the working-surface of abrasive sheet be carved be evenly distributed radially or tangential groove, groove depth 3mm.
The dispersion agent adding in raw material stirring bucket is the combination of following two kinds of dispersion agents, their weight respectively accounts for 50%, one, dispersion agent 5040, two, dispersion agent: the polymeric dispersant SN5027 of polycarboxylate sodium's type dispersion agent SN5040 or ammonium polyacrylate salt, total umber of dispersion agent is 0.1% of slurry solid content.
Claims (6)
1. a ultrafine heavy calcium is coated with the preparation method of cloth filler, by the former powder of particle diameter 325 object calcium carbonate mineral, through adding water, adding dispersion agent, modulation, stir, with pump, throw hopper into, by hopper, set flow and enter in the grinding machine that white fused alumina resin ground plate and green silicon carbide resin ground plate form and grind, then through screening, obtain particle diameter >=60% below 2 μ m, the coarse whiting painting cloth filler of solid content 70%, sieve out work in-process and again pump into hopper, enter regrind.
2. a ultrafine heavy calcium is coated with the Preparation equipment of cloth filler, comprise a raw material stirring bucket, raw material stirring bucket passes through feedstock pump, hopper on pipeline and circle mill communicates, it is characterized in that, hopper bottom is provided with the round mill of white fused alumina resin ground plate and green silicon carbide resin ground plate composition, in circle mill periphery bottom, be equipped with the groove that connects material, the entrance of groove by discharge nozzle and sieve apparatus that connect material communicates, under the discharge port of sieve apparatus, be connected to charging basket, inflow work in-process agitation vat is divided on the sieve top of sieve apparatus, work in-process agitation vat is by work in-process pump, hopper on pipeline and circle mill communicates.
3. a kind of ultrafine heavy calcium according to claim 2 is coated with the Preparation equipment of cloth filler, it is characterized in that, the lower wall of circle mill is Moving plate, there is main shaft centre, main shaft is connected with step-down gear, motor, the upper dish of circle mill and the equal diameters of lower wall, and upper dish maintains static, be placed on lower wall, in the middle of upper dish, have feed port.
4. a kind of ultrafine heavy calcium according to claim 2 is coated with the Preparation equipment of cloth filler, it is characterized in that, the wear resistance of green silicon carbide resin ground plate is higher than the wear resistance of white fused alumina resin ground plate, and the working strength of lower wall is higher than the working strength of upper dish, the round mill that white fused alumina resin ground plate and green silicon carbide resin ground plate form specifically has following three kinds of forms: one, upper and lower two is all green silicon carbide resin ground plate, and being applicable to ore hardness is more than 3.2 marbles; Two, upper slice be white fused alumina resin ground plate, lower is green silicon carbide resin ground plate, is applicable to marble or the calcite of ore hardness between 2.8-3.2; Three, upper and lower two is all white fused alumina resin ground plate, and being applicable to ore hardness is the calcite below 2.8.
5. a kind of ultrafine heavy calcium according to claim 2 is coated with the Preparation equipment of cloth filler, it is characterized in that, the resin that the abrasive material that white fused alumina resin ground plate and green silicon carbide resin ground plate are mainly comprised of white fused alumina or green silicon carbide and resol and polyimide resin form is through mixing, compression moulding, high warm hardening forms, hardness is high, interior tissue is even and fine and close, wear resistance is good, the composition of resin ground plate is composed as follows: A, the weight of resene is the 37-60% of abrasive sheet gross weight, B, the weight of abrasive material class is the 37-60% of abrasive sheet gross weight, resin ground plate bulk density 2.8-3.2g/cm
3, hardness HRC50-65, uniformity of hardness HRC ± 3, the working-surface of abrasive sheet be carved be evenly distributed radially or tangential groove, groove depth 1-5mm.
6. a kind of ultrafine heavy calcium according to claim 1 is coated with the preparation method of cloth filler, it is characterized in that, the dispersion agent adding in raw material stirring bucket is the combination of following two kinds of dispersion agents, their weight respectively accounts for 50%, one, dispersion agent 5040, two, dispersion agent: the polymeric dispersant SN5027 of polycarboxylate sodium's type dispersion agent SN5040 or ammonium polyacrylate salt, total umber of dispersion agent is 0.1% of slurry solid content.
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| CN201310358119.1A CN103627212B (en) | 2013-08-16 | 2013-08-16 | Preparation method and preparation apparatus for ultrafine heavy calcium coating filler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874454A (en) * | 2015-05-13 | 2015-09-02 | 成都中牧生物药业有限公司 | Medicine grinder capable of timely discharging material |
| CN106675097A (en) * | 2016-11-15 | 2017-05-17 | 广东荣高陶瓷有限公司 | Preparation method of pigment for ceramic body |
| CN106999940A (en) * | 2014-12-04 | 2017-08-01 | 安德里特斯公开股份有限公司 | The method for reclaiming valuable material for handling electric member and electronic component |
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| US5533679A (en) * | 1993-03-12 | 1996-07-09 | Ecc International Limited | Grinding alkaline earth metal pigments |
| CN1232059A (en) * | 1999-02-23 | 1999-10-20 | 华南理工大学 | Method and apparatus for preparing superfine modified heavy calcium carbonate for rubber tyre |
| CN1696207A (en) * | 2005-06-16 | 2005-11-16 | 王东民 | System for producing micropowder of dense calcium carbonate |
| CN100999331A (en) * | 2006-12-25 | 2007-07-18 | 上海东升新材料有限公司 | Preparation method of high retention heavy calcium carbonate |
| CN101200053A (en) * | 2006-12-13 | 2008-06-18 | 广东奔朗超硬材料制品有限公司 | Abrasive tool of epoxy resin combined with compounded abrasive |
| CN102351230A (en) * | 2011-07-06 | 2012-02-15 | 湖南磊鑫新材料科技有限公司 | Preparation method of ultrafine active heavy calcium carbonate |
| CN102864681A (en) * | 2012-09-30 | 2013-01-09 | 湖南磊鑫新材料科技有限公司 | Method for preparing superfine coarse whiting size with general calcite mineral powder |
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2013
- 2013-08-16 CN CN201310358119.1A patent/CN103627212B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5533679A (en) * | 1993-03-12 | 1996-07-09 | Ecc International Limited | Grinding alkaline earth metal pigments |
| CN1232059A (en) * | 1999-02-23 | 1999-10-20 | 华南理工大学 | Method and apparatus for preparing superfine modified heavy calcium carbonate for rubber tyre |
| CN1696207A (en) * | 2005-06-16 | 2005-11-16 | 王东民 | System for producing micropowder of dense calcium carbonate |
| CN101200053A (en) * | 2006-12-13 | 2008-06-18 | 广东奔朗超硬材料制品有限公司 | Abrasive tool of epoxy resin combined with compounded abrasive |
| CN100999331A (en) * | 2006-12-25 | 2007-07-18 | 上海东升新材料有限公司 | Preparation method of high retention heavy calcium carbonate |
| CN102351230A (en) * | 2011-07-06 | 2012-02-15 | 湖南磊鑫新材料科技有限公司 | Preparation method of ultrafine active heavy calcium carbonate |
| CN102864681A (en) * | 2012-09-30 | 2013-01-09 | 湖南磊鑫新材料科技有限公司 | Method for preparing superfine coarse whiting size with general calcite mineral powder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106999940A (en) * | 2014-12-04 | 2017-08-01 | 安德里特斯公开股份有限公司 | The method for reclaiming valuable material for handling electric member and electronic component |
| CN106999940B (en) * | 2014-12-04 | 2020-04-07 | 安德里特斯公开股份有限公司 | Method for processing electrical and electronic components for the recovery of valuable materials |
| CN104874454A (en) * | 2015-05-13 | 2015-09-02 | 成都中牧生物药业有限公司 | Medicine grinder capable of timely discharging material |
| CN106675097A (en) * | 2016-11-15 | 2017-05-17 | 广东荣高陶瓷有限公司 | Preparation method of pigment for ceramic body |
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| CN103627212B (en) | 2015-02-25 |
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