CN115745586A - Low-energy-consumption fast-fired body, ceramic tile and preparation method thereof - Google Patents
Low-energy-consumption fast-fired body, ceramic tile and preparation method thereof Download PDFInfo
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Abstract
The invention provides a low-energy-consumption fast-fired body, a ceramic tile and a preparation method thereof. The mineral composition of the low-energy-consumption quick-firing green body comprises: the high-temperature bentonite comprises the following components in percentage by mass: 12-17%, palygorskite: 2-4%, illite: 3-7%, acicular kaolin: 1-4%, filter pressing residue: 8-12%, albite: 16-22%, potassium-sodium stone powder: 4-10%, potassium sodium sand: 25-35%, high-temperature sand: 2 to 8%, black talc: 1-5%, calcined bauxite: 0 to 2 percent. The invention provides a low-energy-consumption fast-fired green body, which realizes the obvious reduction of the firing gas consumption of ceramic products under the coordination of a green body formula and a kiln firing system. The low-energy-consumption fast-fired green body, the ceramic tile and the preparation method thereof greatly reduce the energy consumption of ceramic products, and simultaneously, the obtained ceramic products have good oxidation degree and excellent comprehensive performance, thereby not only improving the product competitiveness, but also promoting the sustainable development of the industry to the direction of reducing carbon and saving energy.
Description
Technical Field
The invention relates to a low-energy-consumption fast-fired body, a ceramic tile and a preparation method thereof, belonging to the technical field of ceramic production and manufacturing.
Background
The building ceramic is an indispensable decorative material due to excellent performances of fire prevention, stain resistance, wear resistance, easy cleaning and the like. However, the production of architectural ceramics is accompanied by the problems of high energy consumption and high resource consumption. With the proposal of the goals of carbon peaking and carbon neutralization, the trend of how to reduce carbon and save energy to be non-blocking in the architectural ceramic industry is realized. In recent years, the prices of electricity, gas and coal are continuously rising, the cost of architectural ceramic products is continuously rising, the profit margin of the products is continuously compressed under the unfavorable environment that the current capacity supply is larger than the demand, and architectural ceramic enterprises are urgently required to find new processes and new technologies to promote the architectural ceramic industry to continuously develop towards the direction of carbon reduction and energy conservation.
At present, the raw materials for the common blank of domestic building ceramics are non-standardized mineral materials, such as mixed raw materials of black clay with high organic matter content, quartz sand, feldspar and the like with different production places and types. In addition, in order to increase the kiln yield, the kiln pre-firing temperature, the intermediate temperature and the smoke discharging temperature of the low-temperature quick firing process commonly adopted by domestic building ceramics are high, so that a large amount of heat loss is caused. Statistics shows that the sintering gas consumption of the ceramic product with the specification of length of 600 multiplied by width of 600 multiplied by thickness of 10mm is up to 1.8m 3 /m 2 。
Disclosure of Invention
Aiming at the problems, the invention provides a low-energy-consumption fast-firing blank, which realizes the obvious reduction of the firing gas consumption of ceramic products under the coordination of the blank formula and the kiln firing system. On the basis, the invention further provides a glaze formula matched with the low-energy-consumption fast-firing blank, and the glaze formula comprises low-energy-consumption fast-firing overglaze and glaze polishing. According to the low-energy-consumption fast-fired green body, the ceramic tile and the preparation method thereof, the energy consumption of the ceramic product is greatly reduced, and meanwhile, the obtained ceramic product is good in oxidation degree and excellent in comprehensive performance, so that the product competitiveness is improved, and the sustainable development of the industry in the direction of reducing carbon and saving energy is promoted.
The invention is realized by the following technical scheme:
in a first aspect, the present invention provides a low energy, fast-fired body. The mineral composition of the low-energy-consumption quick-firing green body comprises: the high-temperature bentonite comprises the following components in percentage by mass: 12-17%, palygorskite: 2-4%, illite: 3-7%, needle-shaped kaolin: 1-4%, filter pressing residue: 8-12%, albite: 16-22%, potassium-sodium stone powder: 4-10%, potassium sodium sand: 25-35%, high-temperature sand: 2 to 8%, black talc: 1-5%, calcined bauxite: 0 to 2 percent.
Preferably, the raw materials of the low-energy-consumption fast-fired body comprise a sintering aid besides mineral compositions, wherein the sintering aid is a sodium-magnesium-boron composite flux, and the chemical composition of the sintering aid comprises: in percentage by mass, na 2 O：25～35％，MgO：30～50％，B 2 O 3 :25 to 35 percent; preferably, the addition amount of the sintering aid is 0.3-1.0% of the low-energy-consumption fast-fired body mineral composition.
In a second aspect, the present invention provides a method for making a ceramic tile. The preparation method comprises the following steps: preparing a blank according to the raw materials of the low-energy-consumption fast-firing blank, pressing and forming to obtain the low-energy-consumption fast-firing blank, and then firing the low-energy-consumption fast-firing blank to obtain the ceramic tile.
Preferably, the firing schedule comprises: the initial temperature of the medium-front temperature is 500-700 ℃, the exhaust temperature is 150-200 ℃, the temperature of the combustion-supporting air is 200-250 ℃, and the micro negative pressure is-5-0 Pa.
Preferably, the firing system further comprises: the highest firing temperature is 1170-1180 ℃, and the firing period is 30-40 min.
Preferably, the preparation method further comprises: applying low-energy-consumption fast-firing overglaze on the surface of the low-energy-consumption fast-firing blank, performing ink-jet printing on the surface of the blank after the low-energy-consumption fast-firing overglaze is applied, applying low-energy-consumption fast-firing glaze polishing on the surface of the blank after the pattern is printed by ink-jet printing, firing, and polishing to obtain the ceramic tile.
Preferably, the chemical composition of the low-energy-consumption fast-firing overglaze comprises: by mass percent, siO 2 ：54～58％、Al 2 O 3 ：22～27％、Fe 2 O 3 ：0.01～0.5％、TiO 2 ：0.01～0.2％、CaO：0.5～1.0％、MgO：0.1～1.0％、K 2 O：0.5～2.5％、Na 2 O：3.0～5.0％、ZrO 2 ：7.5～9.5％、HfO 2 : 0.5-1.5%, loss on ignition: 0.5 to 3.5 percent.
Preferably, a bell jar glaze pouring process is adopted to apply the low-energy-consumption fast-firing overglaze; the proportion of the low-energy-consumption fast-fired overglaze is as follows: 1.82 +/-0.02 g/cm 3 And glazing amount: 400-500 g/m 2 。
Preferably, the chemical composition of the low-energy-consumption fast-firing polished glaze comprises: in terms of mass percent, siO 2 ：46～51％、Al 2 O 3 ：11～15％、Fe 2 O 3 ：0.01～0.5％、TiO 2 ：0.01～0.2％、CaO：4.5～8.5％、MgO：4.5～8.5％、K 2 O：0.5～1.5％、Na 2 O:4.5 to 6.5%, srO:4.5 to 6.5%, znO: 2.0-6.0%, loss on ignition: 11 to 15 percent.
Preferably, a bell jar glaze spraying process is adopted to apply low-energy-consumption fast-burning glaze polishing; the proportion of the low-energy-consumption fast-firing glaze polishing is as follows: 1.88 +/-0.02, glazing amount: 450-550 g/m 2 。
Drawings
FIG. 1 is a sectional view showing an effect of example 1.
Fig. 2 is a sectional effect diagram of comparative example 2.
Detailed Description
The present invention is further illustrated by the following examples, which are to be construed as merely illustrative, and not a limitation of the present invention. Unless otherwise specified, each percentage means a mass percentage.
The mineral composition of the low-energy-consumption quick-firing green body comprises the following components: the high-temperature bentonite comprises the following components in percentage by mass: 12-17%, palygorskite: 2-4%, illite: 3-7%, needle-shaped kaolin: 1-4%, filter pressing residue: 8-12%, albite: 16-22%, potassium-sodium stone powder: 4-10%, potassium-sodium sand: 25-35%, high-temperature sand: 2 to 8%, black talc: 1-5%, calcined bauxite: 0 to 2 percent.
The content of alkali metal and alkaline earth metal oxides in the high-temperature bentonite is less than or equal to 3.0 percent. The high-temperature bentonite is used for providing plasticity required by green body dry pressing forming, ensuring green brick strength and reducing green brick damage. As an example, the chemical composition of high temperature bentonite includes: loss on ignition by mass percent: 6.3% of SiO 2 ：71.69％、Al 2 O 3 ：17.39％、Fe 2 O 3 ：1.7％、TiO 2 ：0.24％、CaO：0.57％、MgO：0.54％、K 2 O：1.39％、Na 2 O：0.15％。
Palygorskite is a magnesium-rich layer chain structure silicate clay mineral with a rod-like or fibrous microstructure.
The filter pressing residues are waste residues produced by secondary filter pressing processing of edging residues, polishing residues and the like generated in the ceramic production process. The chemical components of the filter-pressing residue comprise: loss on ignition by mass percent: 0.8 to 1.4 percent of SiO 2 ：65.5～72.5％、Al 2 O 3 ：17.5～21.5％、Fe 2 O 3 ：0.5～1.5％、TiO 2 ：0.1～0.5％、CaO：0.5～2.5％、MgO：0.5～1.5％、K 2 O：2.0～3.5％、Na 2 O:2.0 to 4.0 percent. By way of example, the chemical composition of the filter-press residue comprises: loss on ignition by mass percent: 1.29% of SiO 2 ：70.66％、Al 2 O 3 ：19.70％、Fe 2 O 3 ：0.63％、TiO 2 ：0.17％、CaO：0.74％、MgO：0.61％、K 2 O：2.90％、Na 2 O：3.30％。
Albite (also called as albite powder) mainly contains Na 2 Feldspar of the O flux component.
The potassium-sodium stone powder mainly contains K 2 O、Na 2 Feldspar of O two flux components. The mineral composition of the potassium-sodium stone powder comprises: the amorphous phase comprises the following components in percentage by mass: 0.1 to 4.0%, quartz: 5.0-25.0%, potassium feldspar: 35.0-55.0%, albite: 20.0 to 40.0%, muscovite: 0.5 to 5.5 percent. As an example, the mineral composition of the potassium-sodium stone powder includes: the amorphous phase comprises the following components in percentage by mass: 2.0%, quartz: 20%, potassium feldspar: 51%, albite: 24%, muscovite: 1.5 percent.
The potassium sodium sand contains K 2 O、Na 2 A weathered sandy material of an O component which is self-sinterable. The mineral composition of the potassium sodium sand comprises: the amorphous phase comprises the following components in percentage by mass: 2.0-6.0%, quartz: 25.0-45.0%, potash feldspar: 5.0-25.0%, albite: 15.0-30.0%, kaolin: 10.0 to 20.0%, muscovite: 5.0-10.0%, anorthite: 0.1-1.0%, diaspore: 0.5 to 2.0 percent. As an example, the mineral composition of the potassium sodium sand includes: the amorphous phase comprises the following components in percentage by mass: 4.1%, quartz: 31%, potassium feldspar: 15%, albite: 25%, kaolin: 14%, muscovite: 6.9%, anorthite: 0.68%, diaspore: 1.4 percent. As an example, the chemical composition of the potassium sodium sand includes: loss on ignition by mass percent: 3.7% of SiO 2 ：72.69％、Al 2 O 3 ：17.98％、Fe 2 O 3 ：0.17％、TiO 2 ：0.06％、CaO：0.12％、MgO：0.08％、K 2 O：2.3％、Na 2 O：2.9％。
The high-temperature sand is K 2 O≤3.0wt％、Na 2 The O is less than or equal to 1.0wt percent of pyrophyllite and quartz minerals. The mineral composition of the high-temperature sand comprises: the amorphous phase comprises the following components in percentage by mass: 0.5-5.0%, quartz: 40.0-60.0%, potassium feldspar: 0.5-5.0%, kaolin: 5.0-10.0%, muscovite: 0.5 to 5.0%, pyrophyllite: 15.0-35.0%, anorthite: 5.0-10.0%, diaspore: 0.5 to 2.0 percent. As an example, the mineral composition of high temperature sand includes: the amorphous phase comprises the following components in percentage by mass: 2.8%, quartz: 49%, potassium feldspar: 2.1%, kaolin: 7.4%, muscovite: 3.8%, pyrophyllite: 27%, anorthite: 5.9%, diaspore: 1.1 percent. As an example, the chemical composition of high temperature sandComprises the following steps: loss on ignition by mass percent: 3.1% of SiO 2 ：77.98％、Al 2 O 3 ：16.31％、Fe 2 O 3 ：0.14％、TiO 2 ：0.22％、CaO：0.05％、MgO：0.13％、K 2 O：1.8％、Na 2 O：0.27％。
The conventional low-temperature fast-firing formula can be fired according to the following firing system: the initial temperature of the medium-front temperature is 900-1050 ℃, the exhaust temperature is 300-400 ℃, the temperature of the combustion-supporting air is 70-150 ℃, and the micro-positive pressure is 5-10 Pa. The intermediate pre-temperature starting temperature refers to the region between 900 and 1050 ℃ displayed by a kiln temperature table. The exhaust gas temperature refers to the temperature of the exhaust gas pumped by the kiln. The combustion-supporting air temperature refers to the air temperature after heat exchange required by the combustion of the kiln. Micro positive pressure refers to high temperature zone pressure.
The firing system of the invention is as follows: the initial temperature of the medium-front temperature is 500-700 ℃, the exhaust temperature is 150-200 ℃, the temperature of the combustion-supporting air is 200-250 ℃, and the micro negative pressure is-5-0 Pa. The formula of the green body provided by the invention can be used for greatly improving the oxidation performance of the green body, reducing the temperature of an oxidation section in the firing process and shortening the oxidation time in the firing process while providing the plasticity required by dry pressing and forming of the green body, and is firstly proposed and realized by the invention. This is also the main reason for achieving low energy consumption firing. Under the firing system of the invention, the maximum firing temperature is 1170-1180 ℃, and the firing period is 30-40 min. The high temperature zone refers to the zone of the furnace temperature table that shows the highest temperature.
It is also stated that conventional low temperature fast-fired bodies often use organic, carbide rich black mud, stucco, mixed clay to provide the plasticity needed for forming the body. If the low-energy-consumption rapid-firing system is adopted for the conventional low-temperature rapid-firing blank, the defects of black cores, sandwich, deformation and the like which seriously affect the product quality are generated in the firing process, so that the ceramic product is directly scrapped, and the economic benefit is directly affected. The low-energy-consumption fast-fired blank body of the invention uses high-temperature bentonite, palygorskite, illite and acicular kaolin which do not contain organic matters and carbides to provide plasticity required by dry pressing forming, and simultaneously improves the strength of a semi-finished product and the strength of the glazed semi-finished product, and reduces the breakage of the semi-finished product.
The chemical composition of the low-energy-consumption quick-firing blank body comprises: in terms of mass percent, siO 2 ：66.0～70.0％、Al 2 O 3 ：17.0～19.0％、Fe 2 O 3 ：0.8～1.5％、TiO 2 ：0.1～0.5％、CaO：0.3～0.5％、MgO：0.8～1.5％、K 2 O：3.0～5.0％、Na 2 O: 3.0-5.0%, loss on ignition: 2.5 to 5.5 percent.
The low-energy-consumption fast-fired green body has 6.0-10.0% of alkali metal oxide and less than or equal to 2.0% of alkaline earth metal oxide. If the content of the alkali metal oxide and the content of the alkaline earth metal oxide in the low-energy-consumption quick-burned green body exceed the ranges, the defects of serious wave-shaped deformation or curling deformation such as front tilting and back drooping and the like can be generated in the process of burning the green brick. Furthermore, the alkaline earth metal MgO and the alkali metal K are added 2 O、Na 2 The amount of the composite flux such as O is a secondary factor for achieving rapid sintering with a shortened sintering cycle and low-energy-consumption sintering.
Preferably, a sintering aid is introduced into the low-energy-consumption fast-firing blank body. The sintering aid is a sodium-magnesium-boron composite flux. The fast-burning auxiliary agent comprises the following chemical components: na (Na) 2 O：25～35％，MgO：30～50％，B 2 O 3 :25 to 35 percent. By adopting Na-rich 2 O、MgO、B 2 O 3 The sintering aid of the pure flux raw materials of the components can generate liquid phase at the temperature of about 600-800 ℃ to promote the rapid sintering of the green body.
The addition amount of the sintering aid is 0.3-1.0% of the raw material of the low-energy-consumption fast-fired green body. If the content of the sintering aid exceeds the range, the glaze surface defects such as pinholes, miliaria and the like can be caused after the sintering.
The preparation method of the low-energy-consumption fast-firing ceramic tile is also described below.
And weighing the raw materials according to the formula of the low-energy-consumption quick-fired blank and preparing the raw materials into blank powder. The way of preparing the green body powder is the conventional technical means in the field, namely, the raw materials are mixed, and then are subjected to wet ball milling and spray drying.
The fluidity of the slurry of the low-energy-consumption fast-sintered body after ball milling, which is obtained by introducing more high-temperature bentonite, palygorskite, illite and acicular kaolin into the formula of the low-energy-consumption fast-sintered body, is obviously reduced compared with the fluidity of the slurry of the conventional low-temperature fast-sintered body which uses black mud and mixed mud which are rich in organic matters and carbides. Preferably, the dispergator can be added into the raw materials of the low-energy-consumption fast-fired body in the process of mixing the raw materials. The debonder comprises sodium tripolyphosphate accounting for 0.1-0.3% of the raw materials of the low-energy-consumption fast-burning green body and sodium humate accounting for 0.5-1.0% of the raw materials of the low-energy-consumption fast-burning green body. The low-energy-consumption fast-burning green body optimally improves the slurry fluidity of the low-energy-consumption fast-burning green body by replacing the traditional sodium silicate debonding agents such as water glass, diluents and the like with the debonding agents such as sodium tripolyphosphate, sodium humate and the like.
Pressing the blank powder into a low-energy-consumption fast-fired blank and drying the blank. The drying time is 35-45 min, the drying temperature is 100-150 ℃, and the moisture of the dried blank is controlled within 0.5 wt%.
And applying the low-energy-consumption fast-firing overglaze on the surface of the low-energy-consumption fast-firing blank. In order to adapt the low-energy-consumption fast-firing overglaze to the low-energy-consumption fast-firing blank, the low-energy-consumption fast-firing overglaze has the silicon-aluminum molar ratio of 3.5-4.5, the total amount of alkali metal oxides in the low-energy-consumption overglaze is 3.5-7.5 wt%, and Na is added 2 O：K 2 The molar ratio of O is more than or equal to 1.5, and the total content of the alkaline earth metal oxides is less than or equal to 2.0wt%. Therefore, the sintering performance and the blank covering performance of the low-energy-consumption overglaze can be ensured, the color development of the ceramic ink is promoted, and the defects of glaze pinholes, miliaria and the like are avoided.
In some technical schemes, the chemical composition of the low-energy-consumption fast-firing overglaze comprises: in terms of mass percent, siO 2 ：54～58％、Al 2 O 3 ：22～27％、Fe 2 O 3 ：0.01～0.5％、TiO 2 ：0.01～0.2％、CaO：0.5～1.0％、MgO：0.1～1.0％、K 2 O：0.5～2.5％、Na 2 O：3.0～5.0％、ZrO 2 ：7.5～9.5％、HfO 2 : 0.5-1.5%, loss on ignition: 0.5 to 3.5 percent. By way of example, the chemical composition of the low-energy-consumption fast-firing overglaze comprises: by mass percent, siO 2 ：56.49％、Al 2 O 3 ：25.26％、Fe 2 O 3 ：0.26％、TiO 2 ：0.11％、CaO：0.75％、MgO：0.32％、K 2 O：1.28％、Na 2 O：4.02％、ZrO 2 ：8.52％、HfO 2 :0.96%, loss on ignition: 2.03 percent.
The conventional overglaze is applied to the low-energy-consumption blank, and the low-energy-consumption firing system is adopted, so that volcano-shaped pinholes or macroscopic holes are easily generated on the glaze after firing, and the defects of poor antifouling property and glaze quality degradation caused by large polished holes are also generated.
The low-energy-consumption fast-firing overglaze is applied by adopting a bell jar glaze spraying process. In some embodiments, the low energy fast firing overglaze has a specific gravity: 1.82 +/-0.02 g/cm 3 And glazing amount: 400-500 g/m 2 . The low-energy-consumption fast-firing overglaze adopts the glaze pouring process with high specific gravity and low water content to reduce the moisture of the green body entering a kiln, can realize fast sintering, and avoids the phenomena of cracking and the like. The glazing amount of the low-energy-consumption quick-firing overglaze is less than 400g/m 2 The background color effect of the covering blank body is poor, and the color development of the ceramic ink is not utilized; the glazing amount of the low-energy-consumption quick-firing overglaze is higher than 500g/m 2 The effect of covering the blank body is in a supersaturated state, and no obvious gain effect exists.
The flow rate of the low-energy-consumption fast-fired overglaze is 25-55 s, and the overglaze flow rate is detected by using a coating-4 flow rate cup. If the flow rate is lower than 25 seconds, the glaze curtain of the glaze spraying is easy to float, so that the glazing amount is unstable; if the flow rate is higher than 55s, the egg-shaped glaze shortage phenomenon is easy to occur in the glaze pouring process.
And (3) carrying out ink-jet printing on the surface of the blank after applying the low-energy-consumption fast-fired overglaze.
And applying low-energy-consumption fast-firing glaze polishing on the surface of the blank after the pattern is printed by ink jet. In order to adapt the low-energy-consumption fast-firing glaze polishing to the low-energy-consumption fast-firing blank body and the low-energy-consumption fast-firing overglaze, the silicon-aluminum molar ratio of the low-energy-consumption fast-firing glaze polishing is 5.5 to 7.5, the total amount of alkali metal oxides in the low-energy-consumption glaze polishing is 5.0 to 8.0 weight percent, and Na is added 2 O：K 2 The molar ratio of O is more than or equal to 4.0, the content of alkaline earth metal oxide is 9-17 wt%, and the glaze polishing with low energy consumption has good transparency, bright color development and excellent antifouling property.
In some technical schemes, the glaze is polished by low energy consumption and quick firingComprises the following chemical compositions: by mass percent, siO 2 ：46～51％、Al 2 O 3 ：11～15％、Fe 2 O 3 ：0.01～0.5％、TiO 2 ：0.01～0.2％、CaO：4.5～8.5％、MgO：4.5～8.5％、K 2 O：0.5～1.5％、Na 2 O:4.5 to 6.5%, srO:4.5 to 6.5%, znO: 2.0-6.0%, loss on ignition: 11 to 15 percent. By way of example, the chemical composition of the low-energy-consumption fast-firing glaze comprises: by mass percent, siO 2 ：48.04％、Al 2 O 3 ：13.3％、Fe 2 O 3 ：0.13％、TiO 2 ：0.08％、CaO：6.84％、MgO：6.42％、K 2 O：0.8％、Na 2 O:4.53%, srO:5.22%, znO:3.03%, loss on ignition: 11.61 percent.
The conventional glaze polishing is applied to the low-energy-consumption blank, and the low-energy-consumption firing system is adopted, so that the phenomena of glaze surface calcination, glaze polishing opacification and devitrification, poor ink color development, incapability of presenting the color texture effect of an ink-jet design pattern and serious dirt absorption after polishing are easy to occur.
The low-energy-consumption quick-firing glaze polishing is carried out by adopting a bell jar glaze pouring process. The proportion of the low-energy-consumption fast-firing glaze polishing is as follows: 1.88 +/-0.02, glazing amount: 450-550 g/m 2 . The low-energy-consumption fast-firing glaze-polishing process adopts a glaze-spraying process with high specific gravity and low water content, can reduce the moisture of the green body entering the kiln, realizes fast sintering, and avoids cracking and the like. The glazing amount of the low-energy-consumption quick-firing polishing glaze is less than 450g/m 2 The defects of yellow edge, yin and yang color and other color differences are easy to appear after polishing; the glazing amount of the low-energy-consumption quick-firing glaze polishing is higher than 550g/m 2 The pores after polishing are obviously increased, and the antifouling effect is deteriorated.
The flow rate of the low-energy-consumption fast-firing glaze polishing is 25-55 s. The overglaze flow rate was measured using a paint-4 flow cup. If the flow rate of the low-energy-consumption quick-firing glaze throwing is lower than 25 seconds, the glaze curtain of glaze pouring is easy to float, so that the glaze application amount is unstable; if the flow rate of the low-energy-consumption fast-firing glaze polishing is higher than 55s, the phenomenon of egg-shaped glaze shortage is easy to occur in the glaze pouring process.
Firing, polishing, edging and grading.
Low-energy-consumption blank, low-energy-consumption overglaze and glaze polishingUnder the coordination of the above steps, the low-energy-consumption quick-burning kiln parameters such as the initial temperature of the front temperature in the kiln is below 700 ℃, the smoke discharge temperature is below 200 ℃, the burning period is shortened to 30-40 min and the like are adopted to realize the low-energy-consumption quick burning, and the burning gas consumption of the ceramic tiles can be reduced to 1.2-1.3 m 3 /m 2 The carbon content is reduced by about 30%, and the development of the industry to the direction of carbon reduction and energy conservation can be promoted while the product competitiveness of a company is improved.
The formula and the process of the glaze blank are more suitable for ceramic tiles with certain thickness. This is because the strength of the semi-finished product of glazed thin ceramic tiles (finished thickness <6 mm) is drastically reduced, and the ceramic tiles are likely to crack when conveyed on a rod or a glaze line belt, resulting in large breakage. In some technical schemes, the specifications of the ceramic tile are 600-900 mm in length, 600-1800 mm in width and 6-15 mm in thickness. By way of example, the ceramic tiles have a size of 600mm by 10mm.
The ceramic tile has a modulus of rupture of 45.2-46.8 MPa and a bulk density of 2.402-2.412 g/cm 3 Convexity of surface flatness (standard less than or equal to 2 mm): 0.4-0.5 mm, concave: 0.3-0.4 mm. The average sintering energy consumption of the ceramic tile is 1.20-1.30 m 3 /m 2 m2。
The present invention will be described in further detail with reference to examples. It is also to be understood that the following examples are illustrative of the present invention and are not to be construed as limiting the scope of the invention, and that certain insubstantial modifications and adaptations of the invention by those skilled in the art may be made in light of the above teachings. The specific process parameters and the like of the following examples are also only one example of suitable ranges, i.e., those skilled in the art can select the appropriate ranges through the description herein, and are not limited to the specific values exemplified below.
Example 1
The preparation method of the low-energy-consumption fast-fired ceramic tile comprises the following steps:
the method comprises the following steps: weighing the raw materials of the low-energy-consumption fast-burning blank according to the proportion and preparing the low-energy-consumption fast-burning blank powder. The low-energy-consumption fast-fired body comprises the following raw materials: the high-temperature bentonite comprises the following components in percentage by mass: 14.5% of palygorskite:3%, illite: 5.0%, acicular kaolin: 2.5%, filter pressing residue: 10%, soda powder: 19%, potassium-sodium stone powder: 7%, potassium sodium sand: 30% and high-temperature sand: 5%, talc sludge: 3%, calcined bauxite: 1 percent. The chemical composition of the low-energy-consumption quick-firing blank body comprises: by mass percent, siO 2 ：68.44％、Al 2 O 3 ：18.35％、Fe 2 O 3 ：1.2％、TiO 2 ：0.23％、CaO：0.48％、MgO：1.3％、K 2 O：3.0％、Na 2 O:3.0%, loss on ignition: 4.0 percent.
Step two: pressing the low-energy-consumption fast-fired green body powder into a green body with the thickness of 10mm, and drying the green body. The drying time is 40min, the drying temperature is 130 ℃, and the moisture of the dried blank is controlled within 0.5 wt%.
Step three: and applying low-energy-consumption fast-firing overglaze on the dried blank by adopting bell jar pouring glaze. The low-energy-consumption fast-fired overglaze comprises the following chemical components: by mass percent, siO 2 ：56.49％、Al 2 O 3 ：25.26％、Fe 2 O 3 ：0.26％、TiO 2 ：0.11％、CaO：0.75％、MgO：0.32％、K 2 O：1.28％、Na 2 O：4.02％、ZrO 2 ：8.52％、HfO 2 :0.96%, loss on ignition: 2.03 percent. The specific gravity of the low-energy consumption fast-firing overglaze is 1.81g/cm 3 The glazing amount is 450g/m 2 The flow rate was 35s.
Step four: and printing an ink-jet design pattern on the blank body after the low-energy-consumption fast-fired overglaze is applied by using a digital ink-jet printer.
Step five: and (3) applying low-energy-consumption fast-firing glaze polishing on the blank body printed with the ink-jet design pattern by adopting bell jar glaze spraying. The low-energy-consumption fast-firing glaze polishing comprises the following chemical components: by mass percent, siO 2 ：48.04％、Al 2 O 3 ：13.3％、Fe 2 O 3 ：0.13％、TiO 2 ：0.08％、CaO：6.84％、MgO：6.42％、K 2 O：0.8％、Na 2 O:4.53%, srO:5.22%, znO:3.03%, loss on ignition: 11.61 percent. The specific gravity of the low-energy-consumption quick-firing glaze polishing is 1.86g/cm 3 The glazing amount is 500g/m 2 The flow rate was 41s.
Step six: and drying by a glaze line, and quickly firing by a roller kiln. The maximum firing temperature is 1180 ℃, the firing period is 36min, the initial temperature of the front temperature in the kiln is 630 ℃, the smoke exhaust temperature is 187 ℃, the combustion-supporting air temperature is 220 ℃, and the micro negative pressure is-5 to 0Pa.
Step seven: and polishing, edging, grading and packaging the fired ceramic tile.
As can be seen from figure 1, the low-energy consumption fast-fired porcelain brick of the embodiment 1 has no sandwich and black core phenomenon on the cross section.
The modulus of rupture was measured by the test method in GB/T3810.4-2016, determination of modulus of rupture and Strength of rupture. The apparent relative density, namely the volume density, is tested by adopting a test method in GB/T3810.3-2016 (determination of water absorption, apparent porosity, apparent relative density and volume weight). The surface flatness is tested by using a testing method of GB/T3810.2-2016 surface flatness. Convex refers to the maximum bending relative to the working dimension. Debossing refers to the maximum amount of warp relative to the working dimension.
The ceramic tile of example 1 had a modulus of rupture of 45.2MPa and a bulk density of 2.408g/cm 3 The upward projection of the surface flatness (standard is less than or equal to 2 mm): 0.4mm, concave: 0.3mm.
The firing energy consumption is calculated according to the cubic number of natural gas consumed for producing the square number of the ceramic tiles in a fixed time (one month or one quarter). The average firing energy consumption of the ceramic tiles of example 1 was 1.28m 3 /m 2 。
Comparative example 1
The preparation method of the ceramic tile comprises the following steps:
the method comprises the following steps: weighing the raw materials of the low-energy-consumption fast-fired blank according to the proportion and preparing the raw materials into low-energy-consumption fast-fired blank powder. The low-energy-consumption quick-firing green body comprises the following raw materials: the high-temperature bentonite comprises the following components in percentage by mass: 14.5%, palygorskite: 3%, illite: 5.0%, acicular kaolin: 2.5%, filter pressing residue: 10%, soda powder: 19%, potassium and sodium stone powder: 7%, potassium-sodium sand: 30% and high-temperature sand: 5%, talc sludge: 3%, calcined bauxite: 1 percent. The chemical composition of the low-energy-consumption fast-fired body comprises: by massOn a fraction basis, siO 2 ：68.44％、Al 2 O 3 ：18.35％、Fe 2 O 3 ：1.2％、TiO 2 ：0.23％、CaO：0.48％、MgO：1.3％、K 2 O：3.0％、Na 2 O:3.0%, loss on ignition: 4.0 percent.
Step two: pressing the low-energy-consumption fast-fired blank powder into a blank with the thickness of 9mm, and drying the blank. The drying time is 40min, the drying temperature is 130 ℃, and the moisture of the dried blank is controlled within 0.5 wt%.
Step three: and (4) applying low-energy-consumption fast-firing overglaze on the dried blank by adopting bell jar glaze pouring. The low-energy-consumption fast-fired overglaze comprises the following chemical components: by mass percent, siO 2 ：56.49％、Al 2 O 3 ：25.26％、Fe 2 O 3 ：0.26％、TiO 2 ：0.11％、CaO：0.75％、MgO：0.32％、K 2 O：1.28％、Na 2 O：4.02％、ZrO 2 ：8.52％、HfO 2 :0.96%, loss on ignition: 2.03 percent. The specific gravity of the low-energy consumption fast-firing overglaze is 1.81g/cm 3 The glazing amount is 450g/m 2 The flow rate was 35s.
Step four: and printing an ink-jet design pattern on the blank body after the low-energy-consumption fast-fired overglaze is applied by using a digital ink-jet printer.
Step five: and applying low-energy-consumption fast-firing polished glaze on the blank printed with the ink-jet design pattern by bell jar glaze pouring. The low-energy-consumption fast-firing glaze polishing comprises the following chemical components: by mass percent, siO 2 ：48.04％、Al 2 O 3 ：13.3％、Fe 2 O 3 ：0.13％、TiO 2 ：0.08％、CaO：6.84％、MgO：6.42％、K 2 O：0.8％、Na 2 O:4.53%, srO:5.22%, znO:3.03%, loss on ignition: 11.61 percent. The specific gravity of the low-energy-consumption quick-firing glaze polishing is 1.86g/cm 3 The glazing amount is 500g/m 2 The flow rate was 41s.
Step six: and drying by a glaze line, and quickly firing by a roller kiln. The maximum firing temperature is 1200 ℃, the firing period is 40min, the initial temperature of the front temperature in the kiln is 1000 ℃, the smoke discharging temperature is 380 ℃, the combustion-supporting air temperature is 80 ℃, and the micro-positive pressure is 5-10 Pa.
Step seven: and (3) polishing, edging, grading and packaging the sintered ceramic tile.
The cross section of the porcelain tile of comparative example 1 had no sandwich and no black core.
The modulus of rupture was measured by the test method in GB/T3810.4-2016, determination of modulus of rupture and Strength of rupture. The apparent relative density, namely the volume density, is tested by adopting a test method in GB/T3810.3-2016 (determination of water absorption, apparent porosity, apparent relative density and volume weight). The surface flatness was tested by the test method of GB/T3810.2-2016 surface flatness. Convex refers to the maximum degree of curvature relative to the working dimension. Debossing refers to the maximum amount of warp relative to the working dimension.
The ceramic tile of comparative example 1 had a modulus of rupture of 42.3MPa and a bulk density of 2.398g/cm 3 Convexity of surface flatness (standard less than or equal to 2 mm): 1.0mm, concave: 0.8mm.
The firing energy consumption is calculated according to the cubic number of natural gas consumed for producing the square number of the ceramic tiles in a fixed time (one month or one quarter). The average firing energy consumption of the ceramic tile of comparative example 1 was 1.81m 3 /m 2 . It can be seen that the firing energy consumption of comparative example 1 is significantly increased compared to example 1.
Comparative example 2
The preparation method of the conventional low-temperature fast-fired ceramic tile comprises the following steps:
the method comprises the following steps: weighing the raw materials of the conventional low-temperature fast-fired blank according to the proportion and preparing the raw materials into low-temperature fast-fired blank powder. The low-temperature fast-fired body comprises the following raw materials: the mud comprises the following components in percentage by mass: 10%, high strength stucco: 8%, double cement: 7%, filter pressing and residue filtering: 10%, linchang sodium sand: 15%, potassium sand: 16%, potassium sodium sand: 22% and high-temperature sand: 8%, talc sludge: 3%, calcined bauxite: 1 percent. The chemical composition of the conventional low-temperature fast-fired blank body comprises: in terms of mass percent, siO 2 ：67.69％、Al 2 O 3 ：19.51％、Fe 2 O 3 ：1.1％、TiO 2 ：0.37％、CaO：0.43％、MgO：0.94％、K 2 O：2.8％、Na 2 O:2.3% loss due to fire：4.86％。
Step two: pressing the conventional low-temperature quick-fired blank powder into a blank with the thickness of 9mm, and drying the blank. The drying time is 40min, the drying temperature is 130 ℃, and the moisture of the dried blank is controlled within 0.5 wt%.
Step three: and applying low-energy-consumption fast-firing overglaze on the dried blank by adopting bell jar pouring glaze. The low-energy-consumption fast-fired overglaze comprises the following chemical components: by mass percent, siO 2 ：56.49％、Al 2 O 3 ：25.26％、Fe 2 O 3 ：0.26％、TiO 2 ：0.11％、CaO：0.75％、MgO：0.32％、K 2 O：1.28％、Na 2 O：4.02％、ZrO 2 ：8.52％、HfO 2 :0.96%, loss on ignition: 2.03 percent. The specific gravity of the low-energy consumption fast-firing overglaze is 1.81g/cm 3 The glazing amount is 450g/m 2 The flow rate was 35s.
Step four: and printing an ink-jet design pattern on the surface of the blank after the low-energy-consumption fast-fired overglaze is applied by using a digital ink-jet printer.
Step five: and (3) applying low-energy-consumption fast-firing glaze polishing on the blank body printed with the ink-jet design pattern by adopting bell jar glaze spraying. The low-energy-consumption fast-firing glaze polishing comprises the following chemical components: in terms of mass percent, siO 2 ：48.04％、Al 2 O 3 ：13.3％、Fe 2 O 3 ：0.13％、TiO 2 ：0.08％、CaO：6.84％、MgO：6.42％、K 2 O：0.8％、Na 2 O:4.53%, srO:5.22%, znO:3.03%, loss on ignition: 11.61 percent. The specific gravity of the low-energy-consumption fast-firing polished glaze is 1.86g/cm 3 The glazing amount is 500g/m 2 The flow rate was 41s.
Step six: and drying by a glaze line, and quickly firing by a roller kiln. The maximum firing temperature is 1180 ℃, the firing period is 35min, the initial temperature of the front temperature in the kiln is 650 ℃, the exhaust gas temperature is 180 ℃, the combustion-supporting air temperature is 230 ℃, and the micro-negative pressure is-5 to 0Pa.
Step seven: and (3) polishing, edging, grading and packaging the sintered ceramic tile.
As can be seen from FIG. 2, the conventional low-temperature fast-fired porcelain tile of comparative example 2 has quality defects of serious sandwich, black core, bulging deformation and the like on the cross section, which leads to direct scrapping of the product.
The modulus of rupture was measured by the test method in GB/T3810.4-2016, determination of modulus of rupture and Strength of rupture. The apparent relative density, namely the volume density, is tested by adopting a test method in GB/T3810.3-2016 (determination of water absorption, apparent porosity, apparent relative density and volume weight). The surface flatness was tested by the test method of GB/T3810.2-2016 surface flatness. Convex refers to the maximum degree of curvature relative to the working dimension. Dishing refers to the maximum warp with respect to the working dimension.
The conventional low-temperature fast-fired porcelain tile of comparative example 2 had a modulus of rupture of 32.3MPa and a bulk density of 2.361g/cm 3 And the surface flatness (standard is less than or equal to 2 mm) is convex: 2.5mm, concave: 2.3mm.
The firing energy consumption is calculated according to the cubic number of natural gas consumed for producing the square number of the ceramic tiles in a fixed time (one month or one quarter). Average firing energy consumption of 1.35m for conventional low-temperature fast-fired porcelain tile of comparative example 2 3 /m 2 。
Example 2
The preparation method of the low-energy-consumption fast-fired ceramic tile comprises the following steps:
the method comprises the following steps: weighing the raw materials of the low-energy-consumption fast-burning blank according to the proportion and preparing the low-energy-consumption fast-burning blank powder. The low-energy-consumption quick-firing green body comprises the following raw materials: the high-temperature bentonite comprises the following components in percentage by mass: 14.5%, palygorskite: 3%, illite: 5%, acicular kaolin: 2.5%, filter pressing residue: 10%, soda powder: 19%, potassium-sodium stone powder: 7%, potassium sodium sand: 30% and high-temperature sand: 5%, talc sludge: 2.5%, calcined bauxite: 1 percent, sodium boron magnesium low-temperature sintering aid: 0.5 percent. The chemical composition of the low-energy-consumption fast-fired body comprises: by mass percent, siO 2 ：67.96％、Al 2 O 3 ：18.59％、Fe 2 O 3 ：1.2％、TiO 2 ：0.23％、CaO：0.48％、MgO：1.3％、K 2 O：3.0％、Na 2 O：3.2％、B 2 O 3 :0.1%, loss on ignition: 3.94 percent.
Step two: pressing the low-energy-consumption fast-fired green body powder into a green body with the thickness of 9mm, and drying the green body. The drying time is 40min, the drying temperature is 130 ℃, and the moisture of the dried blank is controlled within 0.5 wt%.
Step three: and (4) applying low-energy-consumption fast-firing overglaze on the dried blank by adopting bell jar glaze pouring. The low-energy-consumption fast-fired overglaze comprises the following chemical components: by mass percent, siO 2 ：56.49％、Al 2 O 3 ：25.26％、Fe 2 O 3 ：0.26％、TiO 2 ：0.11％、CaO：0.75％、MgO：0.32％、K 2 O：1.28％、Na 2 O：4.02％、ZrO 2 ：8.52％、HfO 2 :0.96%, loss on ignition: 2.03 percent. The specific gravity of the low-energy consumption fast-firing overglaze is 1.81g/cm 3 The glazing amount is 450g/m 2 The flow rate was 35s.
Step four: and printing an ink-jet design pattern on the blank body after the low-energy-consumption fast-fired overglaze is applied by using a digital ink-jet printer.
Step five: and (3) applying low-energy-consumption fast-firing glaze polishing on the blank body printed with the ink-jet design pattern by adopting bell jar glaze spraying. The low-energy-consumption fast-firing glaze polishing comprises the following chemical components: in terms of mass percent, siO 2 ：48.04％、Al 2 O 3 ：13.3％、Fe 2 O 3 ：0.13％、TiO 2 ：0.08％、CaO：6.84％、MgO：6.42％、K 2 O：0.8％、Na 2 O:4.53%, srO:5.22%, znO:3.03%, loss on ignition: 11.61 percent. The specific gravity of the low-energy-consumption fast-firing polished glaze is 1.86g/cm 3 The glazing amount is 500g/m 2 The flow rate was 41s.
Step six: and drying by a glaze line, and quickly firing by a roller kiln. The maximum firing temperature is 1170 ℃, the firing period is 32min, the initial temperature of the front temperature in the kiln is 630 ℃, the exhaust gas temperature is 187 ℃, the combustion-supporting air temperature is 220 ℃, and the micro negative pressure is-5 to 0Pa.
Step seven: and polishing, edging, grading and packaging the fired ceramic tile.
The low-energy-consumption fast-fired porcelain brick of example 2 added with the boron, sodium and magnesium low-temperature sintering aid has no sandwich and black core at the cross section.
The modulus of rupture was measured by the test method in GB/T3810.4-2016, determination of modulus of rupture and Strength of rupture. The apparent relative density, namely the volume density, is tested by adopting a test method in GB/T3810.3-2016 (determination of water absorption, apparent porosity, apparent relative density and volume weight). The surface flatness was tested by the test method of GB/T3810.2-2016 surface flatness. Convex refers to the maximum degree of curvature relative to the working dimension. Debossing refers to the maximum amount of warp relative to the working dimension.
The ceramic tile of example 2 with the addition of the boron sodium magnesium low temperature sintering aid had a modulus of rupture of 46.8MPa and a bulk density of 2.412g/cm 3 The upward projection of the surface flatness (standard is less than or equal to 2 mm): 0.5mm, concave: 0.4mm.
The firing energy consumption is calculated according to the cubic number of natural gas consumed for producing the square number of the ceramic tiles in a fixed time (one month or one quarter). The ceramic tile of example 2 added with the boron, sodium and magnesium low-temperature sintering aid has a sintering period shortened by 4 minutes compared with that of the ceramic tile of example 1, the high-temperature region is reduced by 10 ℃, and the average sintering energy consumption is 1.21m 3 /m 2 。
Comparative example 3
The preparation method of the low-energy-consumption fast-fired ceramic tile comprises the following steps:
the method comprises the following steps: weighing the raw materials of the low-energy-consumption fast-burning blank according to the proportion and preparing the low-energy-consumption fast-burning blank powder. The low-energy-consumption quick-firing green body comprises the following raw materials: the high-temperature bentonite comprises the following components in percentage by mass: 14.5%, palygorskite: 3%, illite: 5%, acicular kaolin: 2.5%, filter pressing residue: 10%, soda powder: 19%, potassium-sodium stone powder: 7%, potassium-sodium sand: 30% and high-temperature sand: 5%, talc sludge: 2.0%, calcined bauxite: 1 percent, calcium and magnesium component high-temperature sintering auxiliary agent: 1.0 percent. The chemical composition of the low-energy-consumption quick-firing blank body comprises: by mass percent, siO 2 ：68.16％、Al 2 O 3 ：18.62％、Fe 2 O 3 ：1.2％、TiO 2 ：0.23％、CaO：0.63％、MgO：1.2％、K 2 O：3.0％、Na 2 O:3.0%, loss on ignition: 3.96 percent.
Step two: pressing the low-energy-consumption fast-fired green body powder into a green body with the thickness of 9mm, and drying the green body. The drying time is 40min, the drying temperature is 130 ℃, and the moisture of the dried blank is controlled within 0.5 wt%.
Step three: and applying low-energy-consumption fast-firing overglaze on the dried blank by adopting bell jar pouring glaze. The low-energy-consumption fast-fired overglaze comprises the following chemical components: by mass percent, siO 2 ：56.49％、Al 2 O 3 ：25.26％、Fe 2 O 3 ：0.26％、TiO 2 ：0.11％、CaO：0.75％、MgO：0.32％、K 2 O：1.28％、Na 2 O：4.02％、ZrO 2 ：8.52％、HfO 2 :0.96%, loss on ignition: 2.03 percent. The specific gravity of the low-energy consumption fast-firing overglaze is 1.81g/cm 3 The glazing amount is 450g/m 2 The flow rate was 35s.
Step four: and printing an ink-jet design pattern on the blank body after the low-energy-consumption fast-fired overglaze is applied by using a digital ink-jet printer.
Step five: and applying low-energy-consumption fast-firing polished glaze on the blank printed with the ink-jet design pattern by bell jar glaze pouring. The low-energy-consumption fast-firing glaze polishing comprises the following chemical components: by mass percent, siO 2 ：48.04％、Al 2 O 3 ：13.3％、Fe 2 O 3 ：0.13％、TiO 2 ：0.08％、CaO：6.84％、MgO：6.42％、K 2 O：0.8％、Na 2 O:4.53%, srO:5.22%, znO:3.03%, loss on ignition: 11.61 percent. The specific gravity of the low-energy-consumption quick-firing glaze polishing is 1.86g/cm 3 The glazing amount is 500g/m 2 The flow rate was 41s.
Step six: and drying by a glaze line, and quickly firing by a roller kiln. The maximum firing temperature is 1190 ℃, the firing period is 39min, the initial temperature of the front temperature in the kiln is 630 ℃, the exhaust gas temperature is 187 ℃, the combustion-supporting air temperature is 220 ℃, and the micro negative pressure is-5 to 0Pa.
Step seven: and polishing, edging, grading and packaging the fired ceramic tile.
The low-energy-consumption fast-fired porcelain brick of the comparative example 3 added with the calcium-magnesium high-temperature sintering aid has no sandwich and black core at the section.
The modulus of rupture was measured using the test method of GB/T3810.4-2016 determination of modulus of rupture and Strength of rupture. The apparent relative density, namely the volume density, is tested by adopting a test method in GB/T3810.3-2016 (determination of water absorption, apparent porosity, apparent relative density and volume weight). The surface flatness was tested by the test method of GB/T3810.2-2016 surface flatness. Convex refers to the maximum bending relative to the working dimension. Debossing refers to the maximum amount of warp relative to the working dimension.
The ceramic tile of comparative example 3, to which the calcium-magnesium high-temperature sintering aid was added, had a modulus of rupture of 43.2MPa and a bulk density of 2.396g/cm 3 Convexity of surface flatness (standard less than or equal to 2 mm): 0.8mm, concave: 0.6mm.
The energy consumption for firing is calculated from the cubic amount of natural gas consumed to produce the square of the tile in a fixed time (one month or one quarter). The ceramic tile of comparative example 3 added with the calcium-magnesium high-temperature sintering aid has the advantages that the sintering period is prolonged by 4 minutes compared with that of example 1, the high-temperature area is raised by 5 ℃, and the average sintering energy consumption is 1.39m 3 /m 2 The average burning gas consumption is increased by 0.11m compared with that of example 1 3 /m 2 。
Claims (10)
1. The low-energy-consumption fast-fired green body is characterized in that the mineral composition of the low-energy-consumption fast-fired green body comprises: the high-temperature bentonite comprises the following components in percentage by mass: 12-17%, palygorskite: 2-4%, illite: 3-7%, needle-shaped kaolin: 1-4%, filter pressing residue: 8-12%, albite: 16-22%, potassium-sodium stone powder: 4-10%, potassium sodium sand: 25-35%, high-temperature sand: 2 to 8%, black talc: 1-5%, calcined bauxite: 0 to 2 percent.
2. The low-energy-consumption fast-fired body according to claim 1, wherein the raw materials of the low-energy-consumption fast-fired body comprise a sintering aid besides mineral composition, the sintering aid is a sodium-magnesium-boron composite flux, and the chemical composition of the sintering aid comprises: in percentage by mass, na 2 O：25～35％，MgO：30～50％，B 2 O 3 :25 to 35 percent; preferably, the addition amount of the sintering aid is 0.3-1.0% of the low-energy-consumption fast-fired body mineral composition.
3. The preparation method of the ceramic tile is characterized by comprising the following steps: preparing a blank according to the raw materials of the low-energy-consumption fast-firing blank body as claimed in claim 1 or 2, pressing and forming to obtain the low-energy-consumption fast-firing blank body, and then firing the low-energy-consumption fast-firing blank body to obtain the ceramic tile.
4. The method of claim 3, wherein the firing schedule comprises: the initial temperature of the medium-front temperature is 500-700 ℃, the exhaust temperature is 150-200 ℃, the temperature of the combustion-supporting air is 200-250 ℃, and the micro negative pressure is-5-0 Pa.
5. The production method according to claim 3 or 4, wherein the firing schedule further includes: the highest firing temperature is 1170-1180 ℃, and the firing period is 30-40 min.
6. The production method according to any one of claims 3 to 5, characterized by further comprising: applying low-energy-consumption fast-firing overglaze on the surface of the low-energy-consumption fast-firing blank, performing ink-jet printing on the surface of the blank after the low-energy-consumption fast-firing overglaze is applied, applying low-energy-consumption fast-firing glaze polishing on the surface of the blank after the pattern is printed by ink-jet printing, firing, and polishing to obtain the ceramic tile.
7. The method for preparing the low-energy-consumption fast-firing overglaze according to claim 6, wherein the chemical composition of the low-energy-consumption fast-firing overglaze comprises: in terms of mass percent, siO 2 ：54～58％、Al 2 O 3 ：22～27％、Fe 2 O 3 ：0.01～0.5％、TiO 2 ：0.01～0.2％、CaO：0.5～1.0％、MgO：0.1～1.0％、K 2 O：0.5～2.5％、Na 2 O：3.0～5.0％、ZrO 2 ：7.5～9.5％、HfO 2 : 0.5-1.5%, loss on ignition: 0.5 to 3.5 percent.
8. The preparation method according to claim 6 or 7, characterized in that a bell jar glaze pouring process is adopted to apply the low-energy-consumption fast-firing overglaze; said low isSpecific gravity of energy consumption fast firing overglaze: 1.82 +/-0.02 g/cm 3 And glazing amount: 400-500 g/m 2 。
9. The preparation method according to any one of claims 6 to 8, wherein the chemical composition of the low-energy-consumption fast-firing glaze polishing comprises: in terms of mass percent, siO 2 ：46～51％、Al 2 O 3 ：11～15％、Fe 2 O 3 ：0.01～0.5％、TiO 2 ：0.01～0.2％、CaO：4.5～8.5％、MgO：4.5～8.5％、K 2 O：0.5～1.5％、Na 2 O:4.5 to 6.5%, srO:4.5 to 6.5%, znO: 2.0-6.0%, loss on ignition: 11 to 15 percent.
10. The preparation method according to any one of claims 6 to 9, characterized in that a bell jar glaze pouring process is adopted to apply low-energy-consumption fast-firing glaze polishing; the specific gravity of the low-energy-consumption fast-firing polished glaze is as follows: 1.88 +/-0.02, glazing amount: 450-550 g/m 2 。
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| CN110698176A (en) * | 2019-10-16 | 2020-01-17 | 蒙娜丽莎集团股份有限公司 | Environment-friendly low-shrinkage ceramic and preparation method thereof |
| CN111704441A (en) * | 2020-06-17 | 2020-09-25 | 蒙娜丽莎集团股份有限公司 | Blank body for high-strength thin ceramic plate, high-strength thin ceramic plate and preparation method of blank body |
| CN112456988A (en) * | 2020-12-01 | 2021-03-09 | 佛山市东鹏陶瓷有限公司 | Preparation method of luxury stone glazed brick and product thereof |
| CN113800879A (en) * | 2021-09-10 | 2021-12-17 | 蒙娜丽莎集团股份有限公司 | Transparent stone ceramic plate and preparation method thereof |
| WO2021258691A1 (en) * | 2020-06-24 | 2021-12-30 | 蒙娜丽莎集团股份有限公司 | Hard wear-resistant polished glazed ceramic tile and preparation method therefor |
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| CN106904950A (en) * | 2017-03-21 | 2017-06-30 | 华东理工大学 | A kind of low sintering 95 alumina ceramic material |
| CN110698176A (en) * | 2019-10-16 | 2020-01-17 | 蒙娜丽莎集团股份有限公司 | Environment-friendly low-shrinkage ceramic and preparation method thereof |
| CN111704441A (en) * | 2020-06-17 | 2020-09-25 | 蒙娜丽莎集团股份有限公司 | Blank body for high-strength thin ceramic plate, high-strength thin ceramic plate and preparation method of blank body |
| WO2021258691A1 (en) * | 2020-06-24 | 2021-12-30 | 蒙娜丽莎集团股份有限公司 | Hard wear-resistant polished glazed ceramic tile and preparation method therefor |
| CN112456988A (en) * | 2020-12-01 | 2021-03-09 | 佛山市东鹏陶瓷有限公司 | Preparation method of luxury stone glazed brick and product thereof |
| CN113800879A (en) * | 2021-09-10 | 2021-12-17 | 蒙娜丽莎集团股份有限公司 | Transparent stone ceramic plate and preparation method thereof |
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| CN116553920A (en) * | 2023-05-12 | 2023-08-08 | 清远市简一陶瓷有限公司 | Low-temperature quick-firing ceramic tile blank and preparation process of low-temperature quick-firing marble ceramic tile using same |
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| CN115745586B (en) | 2023-10-17 |
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