CN115353311B - Environment-friendly colored sand and preparation method thereof - Google Patents
Environment-friendly colored sand and preparation method thereof Download PDFInfo
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- CN115353311B CN115353311B CN202210822163.2A CN202210822163A CN115353311B CN 115353311 B CN115353311 B CN 115353311B CN 202210822163 A CN202210822163 A CN 202210822163A CN 115353311 B CN115353311 B CN 115353311B
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- 239000004576 sand Substances 0.000 title claims abstract description 102
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 139
- 239000002245 particle Substances 0.000 claims abstract description 57
- 239000002994 raw material Substances 0.000 claims abstract description 56
- 239000000049 pigment Substances 0.000 claims abstract description 30
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000002844 melting Methods 0.000 claims abstract description 23
- 230000008018 melting Effects 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000010791 quenching Methods 0.000 claims abstract description 16
- 230000000171 quenching effect Effects 0.000 claims abstract description 16
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 14
- 239000010459 dolomite Substances 0.000 claims abstract description 14
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 14
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 15
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical group [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims description 5
- 229910001950 potassium oxide Inorganic materials 0.000 claims description 5
- YJVLWFXZVBOFRZ-UHFFFAOYSA-N titanium zinc Chemical compound [Ti].[Zn] YJVLWFXZVBOFRZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 2
- 241001366278 Leptotes marina Species 0.000 claims 1
- 238000005034 decoration Methods 0.000 abstract description 12
- 230000001988 toxicity Effects 0.000 abstract description 6
- 231100000419 toxicity Toxicity 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 238000012216 screening Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000004043 dyeing Methods 0.000 description 14
- 239000010410 layer Substances 0.000 description 12
- 239000006004 Quartz sand Substances 0.000 description 10
- 239000010419 fine particle Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000000576 coating method Methods 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 238000003776 cleavage reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002932 luster Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000007017 scission Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000001055 blue pigment Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000010437 sandpainting Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1092—Coating or impregnating with pigments or dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention discloses environment-friendly colored sand and a preparation method thereof, and belongs to the field of preparation of building decoration materials. The environment-friendly colored sand comprises the following raw materials in parts by weight: 20-70 parts of dolomite, 30-60 parts of silica sand, 10-20 parts of sodium carbonate, 2-10 parts of oxide auxiliary materials and 0.2-4 parts of pigment, and after the raw materials are uniformly stirred and mixed, a high-temperature melting method and a water quenching treatment method are adopted to prepare the environment-friendly colored sand with an amorphous structure. The invention generates a short-range ordered and long-range unordered amorphous structure different from the structure of the component compounds in the raw materials by screening the raw materials and the proportion relation thereof and rapidly cooling and solidifying the raw materials after being melted at high temperature. The color sand particles obtained by the preparation method have uniform color, completely wrapped pigment, completely isolated toxicity, uniform texture, complete color system, high stability and excellent comprehensive performance. The preparation method of the colored sand particles has the advantages of low cost, little pollution and strong market competitiveness.
Description
Technical Field
The invention relates to the field of preparation of building decoration materials, in particular to environment-friendly colored sand and a preparation method thereof.
Background
Under the condition of rapid development of science and technology and economy, people have increasingly pursued 'beauty' of building appearance, especially the building outer wall in urban prosperous zones, the color of the building outer wall is more interesting, and especially in the decoration of outer wall buildings, the decoration with five colors and six colors is favored by people. The color sand has the advantages of bright color, stable performance, rich texture, no toxicity, environmental protection and the like, and plays an important role in building decoration materials. The colored sand is divided into natural colored sand and artificial colored sand. The natural colored sand is prepared by crushing and screening various natural colored rocks, and has natural and soft color, easy processing and uneven color; the hardness is generally smaller and more brittle, and is suitable for floor decoration with small bearing pressure. The artificial colored sand is formed by crushing white or light-colored rock, screening, grading, rounding, polishing and other steps to form smooth small stones, and then artificially dyeing according to the need; the artificial colored sand has uniform and bright color and strong color controllability, can mix various colored sand to prepare colored sand with different colors, and is applied to various decorative materials. The outer wall decorated by adopting the artificial colored sand or the prepared colored sand outer wall paint has the advantages of more bright color, wider color selectivity, better color durability, uniform particles, time and labor saving, material saving, better decorative effect than natural colored sand and suitability for various ground decorations.
The preparation methods of artificial colored sand in the current market are mainly divided into 4 types: normal temperature dyeing, resin curing, high temperature sintering and ceramic color glaze. (1) The normal temperature dyeing method adopts organic pigment to directly dye quartz sand or calcium carbonate particles, has simple process, is easy to fade, has poor weather resistance, is not suitable for building facades, and is generally used for bonsai decoration, sand painting and the like in many ways. (2) The resin curing method adopts a bi-component polyurethane resin to wrap quartz sand or calcium carbonate particles, and then the quartz sand or the calcium carbonate particles are dried. The cost is lower, but sand lacks naturalness, the particles are easy to adhere, and the weather resistance and the wear resistance are general. (3) The high-temperature sintering method adopts inorganic pigment and inorganic binder to wrap quartz sand, and then carries out high-temperature calcination, wherein the sintering temperature is more than 1000 ℃ generally, and the high-temperature sintering method has excellent weather resistance and stable color. (4) The technological process of the ceramic colored glaze method comprises two steps of glaze preparation and coloring, and the principle of glaze glazing is utilized, and quartz sand is used as a blank body, so that pigment is adsorbed on the surface layer of the quartz sand.
From the above, in the existing four color sand preparation methods, the technology of coating the dyed layer outside the quartz sand is mainly adopted, and the application of the color sand in the aspects of building outer walls, road signs and decoration is realized by utilizing the hardness of the quartz sand and good temperature resistance and corrosion resistance. The method is characterized in that two compounds with different properties are physically and chemically combined, an interface effect is necessarily present, and under the action of external environment change (mainly temperature and direct pressure), interface stress is generated due to the difference of expansion coefficients and mechanical properties (mainly shear resistance), and fatigue effect is generated under the repeated action of stress, so that a dyeing layer falls off. If the artificial colored sand is applied to outer wall sand blasting, the adhesive force of the pigment is smaller, so that the pigment cannot be well adhered to the surface of the raw material, and the performance cannot meet the requirements; when the paint is applied to the real stone paint, the color sand with different colors is required to be mixed and stirred to prepare the required color, and the pigment is easy to fall off, so that the color of the whole material is polluted, and the paint cannot be normally applied. In the actual process, the coating layer outside the quartz sand really plays a role in strength, so that the high-strength effect of the quartz sand is weakened.
Therefore, the existing artificial color sand and the preparation method thereof have inconvenience and defects in structure, method and use, and further improvement is needed. How to create a new environment-friendly colored sand and a preparation method thereof, which can prepare the environment-friendly colored sand particles with uniform texture, uniform color and high stability and excellent comprehensive performance by improving the colored sand raw material and adding a water quenching treatment method by a high-temperature melting method, thoroughly solve the problem that the dyeing layer is easy to fall off due to the existing artificial colored sand coating dyeing layer process, and become the aim of great improvement in the current industry.
Disclosure of Invention
The invention aims to solve the technical problem of providing the environment-friendly colored sand, which is prepared by improving a colored sand raw material and adding a water quenching treatment method through a high-temperature melting method, so that the environment-friendly colored sand particles with uniform texture, uniform color and high stability and excellent comprehensive performance are prepared, the problem that a dyeing layer is easy to fall off due to the existing artificial colored sand coating process is thoroughly solved, and the defects of the existing artificial colored sand are overcome.
In order to solve the technical problems, the invention provides environment-friendly colored sand, which comprises the following raw materials in parts by weight: 20-70 parts of dolomite, 30-60 parts of silica sand, 10-20 parts of sodium carbonate, 2-10 parts of oxide auxiliary materials and 0.2-4 parts of pigment, wherein the raw materials are uniformly stirred and mixed, fully react in a high-temperature melting furnace by a high-temperature melting method, and then the environment-friendly color sand with an amorphous structure is prepared through water quenching treatment.
The further improvement comprises the following raw materials in parts by weight: 45-55 parts of dolomite, 38-55 parts of silica sand, 15-20 parts of sodium carbonate, 7-10 parts of oxide auxiliary materials and 2.5-3.5 parts of pigment.
Further improved, the grain size range of dolomite in the raw materials is 20-200 meshes, the grain size range of silica sand is 10-150 meshes, the grain size range of sodium carbonate is 30-200 meshes, the grain size range of oxide auxiliary materials is below 30 meshes, and the grain size range of pigments is above 800 meshes.
Further improved, the oxide auxiliary material adopts potassium oxide, aluminum oxide or zinc oxide, and the pigment adopts chrome aluminum red, sea blue or zinc titanium yellow.
Further improved, the preparation method of the environment-friendly colored sand comprises the following steps: and (3) uniformly stirring and mixing the raw materials in proportion, placing the raw materials in a high-temperature melting furnace for full reaction, wherein the basic temperature of the high-temperature melting furnace is above 800 ℃, the reaction temperature is 1400-1775 ℃, the temperature is kept for 20-30 minutes at the highest temperature, then carrying out water quenching treatment to prepare amorphous structure particles with the size of less than 3mm, and finally carrying out grinding classification according to the requirement to obtain the environment-friendly color sand.
As a further improvement of the invention, the invention also provides a preparation method of the environment-friendly colored sand, which comprises the following steps:
(1) Selecting various raw materials of the color sand, and mixing the raw materials according to the weight part ratio; wherein the raw materials comprise the following raw materials in parts by weight: 20-70 parts of dolomite, 30-60 parts of silica sand, 10-20 parts of sodium carbonate, 2-10 parts of oxide auxiliary materials and 0.2-4 parts of pigment;
(2) Mechanically stirring and uniformly mixing the raw materials of the color sand according to the proportion of the step (1), and then placing the raw materials in a high-temperature melting furnace for full reaction, wherein the basic temperature of the high-temperature melting furnace is above 800 ℃, the reaction temperature is 1400-1775 ℃, and the temperature is kept for 20-30 minutes at the highest temperature to obtain a high-temperature liquid mixture with lower viscosity;
(3) Pouring the high-temperature liquid mixture obtained in the step (2) into cooling water, and performing water quenching treatment to obtain amorphous structure particles with the particle diameter of less than 3 mm;
(4) Grinding the amorphous structure particles obtained in the step (3) according to the requirements to obtain the environment-friendly colored sand with different particle sizes.
Further improved, in the step (1), the raw materials are crushed according to the particle size requirement, wherein the particle size range of dolomite is 20-200 meshes, the particle size range of silica sand is 10-150 meshes, the particle size range of sodium carbonate is 30-200 meshes, the particle size range of oxide auxiliary materials is below 30 meshes, and the particle size range of pigment is above 800 meshes.
Further improved, the oxide auxiliary material adopts potassium oxide, aluminum oxide or zinc oxide.
Further improved, the pigment adopts chrome aluminum red, sea blue or zinc titanium yellow.
Further improved, the different grades of the environment-friendly colored sand in the step (4) comprise 40-80 meshes or 80-120 meshes.
With such a design, the invention has at least the following advantages:
the environment-friendly colored sand is prepared by screening the raw materials and the proportion relation thereof, and then carrying out water quenching treatment on the raw materials after the raw materials are melted at high temperature, so that the raw materials are melted at high temperature to form a high-temperature liquid mixture with lower viscosity, and then the high-temperature liquid mixture is rapidly cooled and solidified to generate cleavage brittle fracture. And finally, drying and crushing to obtain qualified finished product color sand particles. The color sand particles are uniform in color, completely wrapped with pigment, completely isolated from toxicity, uniform in texture, complete in color system, high in stability and excellent in comprehensive performance, and are completely green and environment-friendly color sand with a brand new concept.
Compared with the existing dyeing layer coating method, the preparation method of the colored sand particles has the advantages of low personnel cost, less pollution in the preparation process, saving of a large amount of hardware and labor cost and strong market competitiveness.
Drawings
The foregoing is merely an overview of the present invention, and the present invention is further described in detail below with reference to the accompanying drawings and detailed description.
FIG. 1 is a schematic diagram of the process flow of the preparation method of the environment-friendly colored sand.
Detailed Description
Example 1
Taking 935kg of dolomite, 646kg of silica sand, 255kg of sodium carbonate, 119kg of alumina and blue (Co.Zn) Al as raw materials 2 O 4 ) 42.5kg of pigment.
The grain size of dolomite raw material is controlled to be between 20 and 200 meshes, the grain size of silica sand is controlled to be between 10 and 150 meshes, the grain size of sodium carbonate particles is controlled to be between 30 and 200 meshes, the grain size of alumina particles is controlled to be below 30 meshes, and the grain size of the sea blue pigment is controlled to be above 800 meshes.
And respectively putting the raw materials meeting the requirements into a stirring mixer for blending for half an hour, then putting the raw materials into a high-temperature melting kiln through a feeding and conveying device, maintaining the basic temperature of the melting kiln at 1200 ℃, heating furnace burden along with the furnace to 1550 ℃, and then preserving heat for half an hour, wherein the raw materials are liquefied into high-temperature liquid mixture liquid with lower viscosity in the melting kiln. And pouring the high-temperature liquid mixture liquid in the furnace into a water quenching tank through rotation of the furnace body for water quenching treatment, and rapidly cooling and solidifying the water quenched high-temperature liquid mixture liquid to generate cleavage brittle fracture, so that the cleavage brittle fracture is dispersed into fine particles with the diameter of less than 3 mm. And atoms of various compounds in the raw materials are subjected to bonding arrangement again to form an amorphous structure which is different from the short-range ordered and long-range unordered structures of the component compounds in the raw materials. And finally, drying the obtained fine particles, then sending the dried fine particles into a double-roller crusher for deep crushing to obtain finished product color sand particles with the particle size of 40-80 meshes, and packaging and leaving a factory.
The amorphous color sand particles obtained by the preparation method have good transparency, uniform color and luster and uniform and no color, and the pigment components in the amorphous color sand particles can show different hues and different shades of chromaticity under the condition of refraction and reflection of light. In addition, the color sand product pigment prepared by the preparation method is completely wrapped and completely isolated from toxicity, and belongs to a green environment-friendly color sand product with a brand new concept.
The colored sand product thoroughly solves the problem that the dyeing layer is easy to fall off due to the existing artificial colored sand coating dyeing layer process, has excellent stability and is suitable for various ground decorations.
Example 2
Raw materials of 800kg dolomite, 720kg silica sand, 320kg sodium carbonate, 160kg potassium oxide and chrome aluminum red (Al) 2 O 3 [Cr]) 48kg of pigment.
The particle size ranges of the respective raw materials are the same as in example 1.
And respectively putting the raw materials meeting the requirements into a stirring mixer for blending for half an hour, then putting the raw materials into a high-temperature melting kiln through a feeding and conveying device, maintaining the basic temperature of the melting kiln at 1300 ℃, heating furnace burden to 1700 ℃ along with the furnace, and preserving heat for 20 minutes, wherein the raw materials are liquefied into high-temperature liquid mixture liquid with lower viscosity in the melting kiln. And pouring the high-temperature liquid mixture liquid in the furnace into a water quenching tank through rotation of the furnace body for water quenching treatment to obtain fine particles with the same amorphous structure as that of the embodiment 1 and within 3 mm. And finally, drying the obtained fine particles, then sending the dried fine particles into a double-roller crusher for deep crushing to obtain finished product color sand particles with the particle size of 80-120 meshes, and packaging and leaving a factory.
On the basis of the proportion of the raw materials, the amorphous-structure colored sand particles obtained by the preparation method have good transparency, uniform color and luster and uniform texture, and the pigment components can show different hues and different shades of chromaticity under the condition of refraction and reflection of light. In addition, the color sand product pigment prepared by the preparation method is completely wrapped and completely isolated from toxicity, and belongs to a green environment-friendly color sand product with a brand new concept.
The color sand product thoroughly solves the problem that the dyeing layer is easy to fall off caused by the existing artificial color sand coating dyeing layer process, has excellent stability and is suitable for various ground decorations.
Example 3
Taking 720kg of dolomite, 880kg of silica sand, 240kg of sodium carbonate, 128kg of zinc oxide and zinc titanium yellow (Zn) 2 TiO 4 ) 56kg of pigment.
The particle size ranges of the respective raw materials are the same as in example 1.
And respectively putting the raw materials meeting the requirements into a stirring mixer for blending for half an hour, then putting the raw materials into a high-temperature melting kiln through a feeding and conveying device, maintaining the basic temperature of the melting kiln at 1300 ℃, heating furnace burden to 1750 ℃ along with the furnace, and then preserving heat for half a minute, wherein the raw materials are liquefied into high-temperature liquid mixture liquid with lower viscosity in the melting kiln. And pouring the high-temperature liquid mixture liquid in the furnace into a water quenching tank through rotation of the furnace body for water quenching treatment to obtain fine particles with the same amorphous structure as that of the embodiment 1 and within 3 mm. And finally, drying the obtained fine particles, then sending the dried fine particles into a double-roller crusher for deep crushing to obtain finished product color sand particles with the particle size of 80-120 meshes, and packaging and leaving a factory.
On the basis of the proportion of the raw materials, the amorphous-structure colored sand particles obtained by the preparation method have good transparency, uniform color and luster and uniform texture, and the pigment components can show different hues and different shades of chromaticity under the condition of refraction and reflection of light. In addition, the color sand product pigment prepared by the preparation method is completely wrapped and completely isolated from toxicity, and belongs to a green environment-friendly color sand product with a brand new concept.
The color sand product thoroughly solves the problem that the dyeing layer is easy to fall off caused by the existing artificial color sand coating dyeing layer process, has excellent stability and is suitable for various ground decorations.
The environment-friendly colored sand adopts a high-temperature melting method and a water quenching treatment method to screen the raw materials and the proportion thereof, so that the raw materials are melted at high temperature to form a high-temperature liquid mixture with lower viscosity, and then are rapidly cooled and solidified to form fine amorphous structure particles. And finally, drying and crushing to obtain qualified finished product color sand particles. The color sand particles are uniform in color, completely wrapped with pigment, completely isolated from toxicity, uniform in texture, complete in color system, high in stability and excellent in comprehensive performance, and are completely green and environment-friendly color sand with a brand new concept. The preparation method of the colored sand particles has low cost, small pollution in the preparation process, good market prospect and strong market competitiveness.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the invention in any way, and some simple modifications, equivalent variations or modifications can be made by those skilled in the art using the teachings disclosed herein, which fall within the scope of the present invention.
Claims (7)
1. The environment-friendly colored sand is characterized by comprising the following raw materials in parts by weight: 45-55 parts of dolomite, 38-55 parts of silica sand, 15-20 parts of sodium carbonate, 7-10 parts of oxide auxiliary materials and 2.5-3.5 parts of pigment, wherein the oxide auxiliary materials adopt potassium oxide, aluminum oxide or zinc oxide;
the preparation method of the environment-friendly colored sand comprises the following steps: and (3) uniformly stirring and mixing the raw materials in proportion, placing the raw materials in a high-temperature melting furnace for full reaction, wherein the basic temperature of the high-temperature melting furnace is above 800 ℃, the reaction temperature is 1400-1775 ℃, the temperature is kept for 20-30 minutes at the highest temperature, then carrying out water quenching treatment to prepare amorphous structure particles with the size of less than 3mm, and finally carrying out grinding classification according to the requirement to obtain the environment-friendly color sand.
2. The environment-friendly colored sand according to claim 1, wherein the raw materials comprise dolomite with a particle size range of 20-200 meshes, silica sand with a particle size range of 10-150 meshes, sodium carbonate with a particle size range of 30-200 meshes, oxide auxiliary materials with a particle size range of below 30 meshes and pigment with a particle size range of above 800 meshes.
3. The environment-friendly colored sand according to claim 2, wherein the pigment is chrome aluminum red, marine blue or zinc titanium yellow.
4. The preparation method of the environment-friendly colored sand is characterized by comprising the following steps of:
(1) Selecting various raw materials of the color sand, and mixing the raw materials according to the weight part ratio;
wherein the raw materials comprise the following raw materials in parts by weight: 45-55 parts of dolomite, 38-55 parts of silica sand, 15-20 parts of sodium carbonate, 7-10 parts of oxide auxiliary materials and 2.5-3.5 parts of pigment, wherein the oxide auxiliary materials adopt potassium oxide, aluminum oxide or zinc oxide;
(2) Mechanically stirring and uniformly mixing the raw materials of the color sand according to the proportion of the step (1), and then placing the raw materials in a high-temperature melting furnace for full reaction, wherein the basic temperature of the high-temperature melting furnace is above 800 ℃, the reaction temperature is 1400-1775 ℃, and the temperature is kept for 20-30 minutes at the highest temperature to obtain a high-temperature liquid mixture with lower viscosity;
(3) Pouring the high-temperature liquid mixture obtained in the step (2) into cooling water, and performing water quenching treatment to obtain amorphous structure particles with the particle diameter of less than 3 mm;
(4) Grinding the amorphous structure particles obtained in the step (3) according to the requirements to obtain the environment-friendly colored sand with different particle sizes.
5. The method for preparing environment-friendly colored sand according to claim 4, wherein in the step (1), the raw materials are crushed according to the particle size requirement, wherein the particle size range of dolomite is 20-200 meshes, the particle size range of silica sand is 10-150 meshes, the particle size range of sodium carbonate is 30-200 meshes, the particle size range of oxide auxiliary materials is below 30 meshes, and the particle size range of pigment is above 800 meshes.
6. The method for preparing environment-friendly colored sand according to claim 4, wherein the pigment is chrome aluminum red, sea blue or zinc titanium yellow.
7. The method for preparing environment-friendly colored sand according to claim 4, wherein the different grades of the environment-friendly colored sand in the step (4) comprise 40-80 meshes or 80-120 meshes.
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| CN202210822163.2A CN115353311B (en) | 2022-07-12 | 2022-07-12 | Environment-friendly colored sand and preparation method thereof |
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| CN115353311B true CN115353311B (en) | 2024-03-01 |
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|---|---|---|---|---|
| CN87102240A (en) * | 1987-03-23 | 1988-10-12 | 牛智勇 | Corrosion-resistant colour sand for decoration of building and method for making thereof and equipment |
| CN1133267A (en) * | 1995-11-23 | 1996-10-16 | 庞德春 | Vitreous jewel colour sand and preparation method |
| CN102795776A (en) * | 2011-05-27 | 2012-11-28 | 淄博钰晶新型材料科技有限公司 | Formula and production technique for producing microcrystalline plate from dolomite |
| CN108424044A (en) * | 2018-04-16 | 2018-08-21 | 合肥协耀玻璃制品有限公司 | A kind of decoration of exterior wall lacquer of addition colorful glass microbead |
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| US6998362B2 (en) * | 1993-02-04 | 2006-02-14 | Pilkington Plc | Glass compositions |
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| CN87102240A (en) * | 1987-03-23 | 1988-10-12 | 牛智勇 | Corrosion-resistant colour sand for decoration of building and method for making thereof and equipment |
| CN1133267A (en) * | 1995-11-23 | 1996-10-16 | 庞德春 | Vitreous jewel colour sand and preparation method |
| CN102795776A (en) * | 2011-05-27 | 2012-11-28 | 淄博钰晶新型材料科技有限公司 | Formula and production technique for producing microcrystalline plate from dolomite |
| CN108424044A (en) * | 2018-04-16 | 2018-08-21 | 合肥协耀玻璃制品有限公司 | A kind of decoration of exterior wall lacquer of addition colorful glass microbead |
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