CN117735842A - Veneer optimization preparation method for process for preparing light spar by dry method - Google Patents
Veneer optimization preparation method for process for preparing light spar by dry method Download PDFInfo
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- CN117735842A CN117735842A CN202311836026.5A CN202311836026A CN117735842A CN 117735842 A CN117735842 A CN 117735842A CN 202311836026 A CN202311836026 A CN 202311836026A CN 117735842 A CN117735842 A CN 117735842A
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- veneer
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- light spar
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- 238000000034 method Methods 0.000 title claims abstract description 45
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000005457 optimization Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 62
- 239000002245 particle Substances 0.000 claims abstract description 36
- 239000002994 raw material Substances 0.000 claims abstract description 32
- 238000005187 foaming Methods 0.000 claims abstract description 31
- 238000010304 firing Methods 0.000 claims abstract description 25
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 23
- 239000011707 mineral Substances 0.000 claims abstract description 23
- 239000008187 granular material Substances 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 238000005303 weighing Methods 0.000 claims abstract description 14
- 238000005485 electric heating Methods 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000005498 polishing Methods 0.000 claims abstract description 4
- 239000012798 spherical particle Substances 0.000 claims description 25
- 230000008569 process Effects 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 11
- 239000011805 ball Substances 0.000 claims description 7
- CNLWCVNCHLKFHK-UHFFFAOYSA-N aluminum;lithium;dioxido(oxo)silane Chemical compound [Li+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O CNLWCVNCHLKFHK-UHFFFAOYSA-N 0.000 claims description 6
- 239000006184 cosolvent Substances 0.000 claims description 6
- 239000013080 microcrystalline material Substances 0.000 claims description 6
- 229910052642 spodumene Inorganic materials 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 239000010438 granite Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 3
- 239000004088 foaming agent Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 238000001694 spray drying Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 239000011044 quartzite Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Glass Compositions (AREA)
Abstract
The invention discloses a veneer optimization preparation method of a process for preparing light spar by a dry method, which comprises the following steps: firstly, weighing a facing layer raw material according to a facing layer formula, weighing 5-30 parts of granule materials, and pouring the facing layer raw material and the granule materials into a mixer in batches or together for stirring to obtain a facing layer material for later use; step two, weighing the raw materials of the foaming layer according to the formula of the foaming layer, pouring the raw materials into a mixer, and stirring to obtain the materials of the foaming layer for later use; assembling a die, and sequentially distributing the facing layer material and the foaming layer material into the die; step four, feeding the blank into an electric heating roller kiln for firing, and completing firing of the product to obtain a blank; and fifthly, polishing and cutting the blank plate to obtain the standard size light spar. The method is used as an extension of a process for preparing the light spar by a dry method, the firing characteristics of the facing materials are changed by introducing mineral particles or hollow particles for granulating the facing materials, and the method can effectively solve the problems of light spar facing color difference and dark stripes and reduce the influence of an electric heating furnace on products.
Description
Technical Field
The invention belongs to the technical field of production of light spar, and particularly relates to a veneer optimization preparation method of a process for preparing light spar by a dry method.
Background
As a light spar production enterprise, a dry preparation process with low energy consumption and low pollution is always focused on. In the large-scale mass production process, we find that the process for preparing the light spar has a certain short plate, and is particularly obvious in an electric heating kiln. Namely, the products except white veneers are fired by the dry preparation process, so that color difference and dark stripes can be generated, the quality and the quality of the products are greatly influenced, and the development of the variety of the patterns of the light spar veneers is greatly limited. We have therefore developed a process for optimizing the preparation of a veneer for the dry process for the production of light spar.
Disclosure of Invention
The invention provides a veneer optimizing preparation method of a dry process light spar preparation process, which can effectively solve the problems of light spar veneer color difference and dark stripes and reduce the influence of an electric heating furnace on products.
The invention is realized by the following technical scheme:
a facing optimization preparation method of a process for preparing light spar by a dry method comprises the following steps: firstly, weighing a facing layer raw material according to a facing layer formula, weighing 5-30 parts of granule materials, and pouring the facing layer raw material and the granule materials into a mixer in batches or together for stirring to obtain a facing layer material for later use;
step two, weighing the raw materials of the foaming layer according to the formula of the foaming layer, pouring the raw materials into a mixer, and stirring to obtain the materials of the foaming layer for later use;
assembling a die, and sequentially distributing the facing layer material and the foaming layer material into the die;
step four, feeding the blank into an electric heating roller kiln for firing, and completing firing of the product to obtain a blank;
and fifthly, polishing and cutting the blank plate to obtain the standard size light spar.
Further, the particle material is mineral particles, the granularity of the mineral particles is 10-40 meshes, and the use amount of the mineral particles is 5-15 parts.
Further, the mineral particles are one or more of basalt, quartzite and granite.
Further, when the mineral particles are added, the facing layer raw materials are premixed for 10-20 minutes, and then the mineral particles are added and mixed for 5-10 minutes.
Further, the granule material is hollow spherical granule, the dosage of the hollow spherical granule is 10-30 parts, and the density of the hollow spherical granule is 800-1500 kg/m.
Further, when the hollow spherical particles are added, the hollow spherical particles and the facing layer raw materials can be added into a mixer for stirring, and the mixing time is 10-20 minutes.
Further, the preparation method of the hollow spherical particles comprises the following steps: and (3) proportioning according to a formula of the finish coat, adding the finish coat raw materials, balls and water into a ball mill according to a ratio of 1:2:0.6 to prepare slurry, and then spray-drying the slurry to prepare hollow spherical particles with the diameter of 2-6 mm.
Further, the finishing layer formula comprises the following components in parts by weight: 70-80 parts of microcrystalline material, 5-15 parts of spodumene, 0-2 parts of clay, 5-15 parts of cosolvent and 0.2-5 parts of colorant.
Further, the foaming layer formula comprises the following components in parts by weight: 40-60 parts of microcrystalline material, 10-30 parts of microcrystalline recovery, 5-10 parts of spodumene, 5-20 parts of silica sand, 5-10 parts of cosolvent, 5-20 parts of ceramic waste residue and 0.1-2 parts of foaming agent.
Furthermore, the fineness of each raw material in the finishing layer formula and the foaming layer formula is 120-250 meshes of fine powder.
The invention has the beneficial effects that:
(1) When the particles are natural mineral particles, the relatively enlarged particles in the powder of the finish layer play a role in fixation, so that the shrinkage movement of the powder in the sintering process is reduced, the shrinkage of the powder is relatively more uniform, and the condition of overlarge local shrinkage is alleviated. (the temperature of the spliced seam assembled by the mould is higher than that of other areas, so that the firing shrinkage is concentrated in the area), meanwhile, the volume change in the firing process of the natural minerals is small, the dry shrinkage effect is further reduced, and the shrinkage of the material of the finish layer which is virtually paved in the firing process is as small as possible, so that a series of defects caused by overlarge firing shrinkage of the finish layer are overcome;
(2) When the granulated hollow spherical particles are adopted as the particle materials, the hollow spherical particles with a certain proportion are added to reduce the drying and sintering shrinkage between 900 ℃, the hollow spherical particles are small in shrinkage, the expansion effect of the internal gas in the heating process is counteracted, the shrinkage is added into the facing layer powder, the integral material shrinkage can be effectively reduced, a liquid phase is formed after the temperature reaches 1050 ℃, the liquid phase is blended into the facing layer material, a facing layer melt is formed, a uniform facing layer is formed after heat preservation and cooling, the color of the facing layer is not changed, and the quality of the facing layer is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below.
First, the generation mechanism of the decorative color difference and dark stripe is introduced: in the existing dry production process, in order to ensure the uniformity of a spar porous structure in the process of preparing the spar, the fineness of the used material powder is generally 120-250 meshes, the powder is distributed in a virtual paving mode in the dry process, the density of the powder is 1-1.2 g/cm, the material of the finish coat and the material of the foaming layer are fed into a kiln for firing after being distributed twice in a die, the material is dehydrated firstly to generate drying shrinkage and then is fired at 700-900 ℃, the material forms shrinkage joints with the width of 2-5 cm in the process of the two shrinkage, the material is gradually melted and leveled along with the continuous heating, the environment where the surface of the material is located in the melting and leveling process is different, the firing results are different, and the temperature of a local area (a shed board splicing position) is higher in the process of electric heating, so that the problem is further amplified;
and in the sintering process of the product, when the temperature reaches 900 ℃, the density of the powder material subjected to the drying and sintering shrinkage effect reaches 1.8-2.2 g/cm. In order to make the shrinkage of materials in an electric heating furnace as small as possible and the shrinkage of each area as close as possible and avoid overlarge shrinkage of partial areas, the improvement is made by adding particles or hollow spherical particles. The specific optimized preparation method is as follows:
a facing optimization preparation method of a process for preparing light spar by a dry method comprises the following steps:
firstly, weighing a facing layer raw material according to a facing layer formula, weighing 5-30 parts of granule materials, and pouring the facing layer raw material and the granule materials into a mixer in batches or together for stirring to obtain a facing layer material for later use;
the formula of the facing layer comprises the following components in parts by weight: 70-80 parts of microcrystalline material, 5-15 parts of spodumene, 0-2 parts of clay, 5-15 parts of cosolvent and 0.2-5 parts of colorant.
Further, the particle material is mineral particles, the granularity of the mineral particles is 10-40 meshes, and the mineral particles are one or more of basalt, quartz rock and granite, so that the particles with different particle diameters and types can be simultaneously mixed. When mineral particles are added, firstly, the facing layer raw materials are premixed for 10-20 minutes, then the mineral particles are added for mixing, and after the mineral particles are added, the mixing time is controlled to be 5-10 minutes, so that the sinking of the particles and the abrasion of the particles are avoided.
Further, the granule material is hollow spherical particles, and the density of the hollow spherical particles is 800-1500 kg/m. When the hollow spherical particles are added, the hollow spherical particles and the facing layer raw materials can be added into a mixer for stirring, and the mixing time is 10-20 minutes.
The preparation method of the hollow spherical particles comprises the following steps: and (3) proportioning the materials of the facing layer, the balls and water according to the ratio of 1:2:0.6, adding the materials into a ball mill for pulping, adding a certain amount of water reducer, and then spray-drying the slurry to prepare hollow spherical particles with the diameter of 2-6 mm.
The dosage of the externally added natural mineral particles is 5-15%, the dosage of the hollow spherical particles is 10-30%, a certain amount of particles are correspondingly added according to the firing shrinkage size of the materials, and the dosage proportion can be referred to as follows:
step two, weighing the raw materials of the foaming layer according to the formula of the foaming layer, pouring the raw materials into a mixer, and stirring to obtain the materials of the foaming layer for later use;
the foaming layer formula comprises the following components in parts by weight: 40-60 parts of microcrystalline material, 10-30 parts of microcrystalline recovery, 5-10 parts of spodumene, 5-20 parts of silica sand, 5-10 parts of cosolvent, 5-20 parts of ceramic waste residue and 0.1-2 parts of foaming agent.
The fineness of each raw material in the formula of the facing layer and the formula of the foaming layer is 120-250 meshes of fine powder.
Assembling a die, and sequentially distributing the facing layer material and the foaming layer material into the die;
step four, feeding the blank into an electric heating roller kiln for firing, and completing firing of the product to obtain a blank;
and fifthly, polishing and cutting the blank plate to obtain the standard size light spar.
Example 1
A facing optimization preparation method of a process for preparing light spar by a dry method comprises the following steps:
(1) According to the formula of the facing layer, 1200kg of raw materials of the facing layer are weighed according to the weight proportion, firstly poured into a mixer for stirring for 15 minutes, then 80kg of granular materials (basalt, quartz rock, granite and the like) with the particle size of 10-40 meshes are weighed, poured into the mixer for stirring for 10 minutes, and then the facing layer material is obtained for standby.
(2) 3000kg of foaming layer raw materials are weighed according to the weight proportion according to the foaming material formula, and are poured into a mixer to be stirred for 20 minutes, so that the foaming layer material is obtained for standby.
(3) And assembling the die, and sequentially distributing the materials of the finish layer and the foaming layer into the die.
(4) And (5) feeding the materials into an electric heating roller kiln for firing, wherein the highest firing temperature is 1125 ℃, and the firing of the products is completed to obtain the blank.
(5) And further deeply processing the blank to obtain the light spar product with the specified size.
Example 2
The preparation method of the glass ceramics suitable for producing the light wall material comprises the following steps:
(1) And weighing the raw materials of the finish coat according to the formula of the finish coat in a weight ratio, adding a certain amount of water and an additive, pouring the mixture into a ball mill for ball milling and pulping, wherein the additive is a water reducing agent, and granulating through a spray head tower to obtain hollow spherical particles with the particle size of 2-6 mm for later use.
(2) Weighing 1000kg of the raw materials of the finishing layer according to the formula of the finishing layer in a weight ratio, adding 200kg of the hollow spherical particles in the first step, pouring into a mixer, and stirring for 15 minutes to obtain the finishing layer material for standby.
(3) 3000kg of foaming layer raw materials are weighed according to the weight proportion according to the foaming material formula, and are poured into a mixer to be stirred for 20 minutes, so that the foaming layer material is obtained for standby.
(4) And assembling the die, and sequentially distributing the materials of the finish layer and the foaming layer into the die.
(5) And (5) feeding the materials into an electric heating roller kiln for firing, wherein the highest firing temperature is 1125 ℃, and the firing of the products is completed to obtain the blank.
(6) And further deeply processing the blank to obtain the light spar product with the specified size.
In summary, according to the method, a certain amount of mineral particles are introduced into the facing layer material or hollow spherical particles granulated by the facing layer material are introduced into the facing layer material to change the firing characteristics, so that the drying shrinkage effect of the firing process of the facing layer is weakened, the influence of the facing firing environment is weakened, the problems of chromatic aberration and dark stripes of the facing can be effectively solved, the influence of an electric heating furnace on a product is reduced, and the problems of bottom leakage and the like of the facing layer can be also solved by adopting the method, so that the quality of the product is stably improved.
While the basic principles, principal features and advantages of the present invention have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described in the foregoing description merely illustrate the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.
Claims (10)
1. A veneer optimizing preparation method of a process for preparing light spar by a dry method is characterized by comprising the following steps of: the method specifically comprises the following steps:
firstly, weighing a facing layer raw material according to a facing layer formula, weighing 5-30 parts of granule materials, and pouring the facing layer raw material and the granule materials into a mixer in batches or together for stirring to obtain a facing layer material for later use;
step two, weighing the raw materials of the foaming layer according to the formula of the foaming layer, pouring the raw materials into a mixer, and stirring to obtain the materials of the foaming layer for later use;
assembling a die, and sequentially distributing the facing layer material and the foaming layer material into the die;
step four, feeding the blank into an electric heating roller kiln for firing, and completing firing of the product to obtain a blank;
and fifthly, polishing and cutting the blank plate to obtain the standard size light spar.
2. The method for optimizing the preparation of the veneer by the process for preparing the light spar by the dry method according to claim 1, wherein the method comprises the following steps of: the granule material is mineral particles, the granularity of the mineral particles is 10-40 meshes, and the dosage of the mineral particles is 5-15 parts.
3. The method for optimizing the preparation of the veneer by the process for preparing the light spar by the dry method according to claim 2, wherein the method comprises the following steps of: the mineral particles are one or more of basalt, quartzite and granite.
4. The method for optimizing the preparation of the veneer by the process for preparing the light spar by the dry method according to claim 2, wherein the method comprises the following steps of: when the mineral particles are added, the facing layer raw materials are premixed for 10-20 minutes, and then the mineral particles are added and mixed for 5-10 minutes.
5. The method for optimizing the preparation of the veneer by the process for preparing the light spar by the dry method according to claim 1, wherein the method comprises the following steps of: the granule material is hollow spherical particles, the dosage of the hollow spherical particles is 10-30 parts, and the density of the hollow spherical particles is 800-1500 kg/m.
6. The method for optimizing the preparation of the veneer by the dry process for preparing the light spar according to claim 5, wherein the method comprises the following steps of: when the hollow spherical particles are added, the hollow spherical particles and the facing layer raw materials can be added into a mixer for stirring, and the mixing time is 10-20 minutes.
7. The method for optimizing the preparation of the veneer by the dry process for preparing the light spar according to claim 6, wherein the method comprises the following steps of: the preparation method of the hollow spherical particles comprises the following steps: and (3) proportioning according to a formula of the finish coat, adding the finish coat raw materials, balls and water into a ball mill according to a ratio of 1:2:0.6 to prepare slurry, and then spray-drying the slurry to prepare hollow spherical particles with the diameter of 2-6 mm.
8. A process for the optimized preparation of a veneer for a dry process for the preparation of light spar according to claim 1 or 7, characterized in that: the formula of the facing layer comprises the following components in parts by weight: 70-80 parts of microcrystalline material, 5-15 parts of spodumene, 0-2 parts of clay, 5-15 parts of cosolvent and 0.2-5 parts of colorant.
9. The method for optimizing the preparation of the veneer by the process for preparing the light spar by the dry method according to claim 1, wherein the method comprises the following steps of: the foaming layer formula comprises the following components in parts by weight: 40-60 parts of microcrystalline material, 10-30 parts of microcrystalline recovery, 5-10 parts of spodumene, 5-20 parts of silica sand, 5-10 parts of cosolvent, 5-20 parts of ceramic waste residue and 0.1-2 parts of foaming agent.
10. A process for the optimized preparation of a veneer for a dry process for the preparation of light spar according to claim 8 or 9, characterized in that: the fineness of each raw material in the formula of the facing layer and the formula of the foaming layer is 120-250 meshes of fine powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311836026.5A CN117735842A (en) | 2023-12-28 | 2023-12-28 | Veneer optimization preparation method for process for preparing light spar by dry method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311836026.5A CN117735842A (en) | 2023-12-28 | 2023-12-28 | Veneer optimization preparation method for process for preparing light spar by dry method |
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| Publication Number | Publication Date |
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| CN117735842A true CN117735842A (en) | 2024-03-22 |
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| CN202311836026.5A Pending CN117735842A (en) | 2023-12-28 | 2023-12-28 | Veneer optimization preparation method for process for preparing light spar by dry method |
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| Country | Link |
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| CN (1) | CN117735842A (en) |
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2023
- 2023-12-28 CN CN202311836026.5A patent/CN117735842A/en active Pending
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