阅读说明：本技术 一种透光砖及其制备方法 (Light-transmitting brick and preparation method thereof ) 是由 李炯志 朱联烽 苏伟劲 蒋小英 卢晓辉 于 2021-01-21 设计创作，主要内容包括：本发明提供一种透光砖及其制备方法,涉及陶瓷领域。透光砖,其化学成分以质量百分比计算包括：二氧化硅64-66％、三氧化二铝18-22％、三氧化二铁0.5-0.7％、二氧化钛0.1-0.15％、氧化钙0.3-0.5％、氧化镁1.0-1.2％、氧化钾3-4％和氧化钠2-3％。透光砖的制备方法,包括：将所述透光砖的原料经过球磨后得到坯料,然后将所述坯料压制成型得到砖坯；将所述砖坯送入窑炉中烧制得到产品。本申请提供的透光砖,透光率高,具有晶莹剔透的光影效果。(The invention provides a light-transmitting brick and a preparation method thereof, and relates to the field of ceramics. The light-transmitting brick comprises the following chemical components in percentage by mass: 64-66% of silicon dioxide, 18-22% of aluminum oxide, 0.5-0.7% of ferric oxide, 0.1-0.15% of titanium dioxide, 0.3-0.5% of calcium oxide, 1.0-1.2% of magnesium oxide, 3-4% of potassium oxide and 2-3% of sodium oxide. The preparation method of the light-transmitting brick comprises the following steps: ball-milling the raw materials of the light-transmitting brick to obtain a blank, and then pressing and forming the blank to obtain a brick blank; and feeding the green bricks into a kiln to be fired to obtain a product. The application provides a printing opacity brick, the luminousness is high, has crystal clear light shadow effect.)

1. The light-transmitting brick is characterized by comprising the following chemical components in percentage by mass:

64-66% of silicon dioxide, 18-22% of aluminum oxide, 0.5-0.7% of ferric oxide, 0.1-0.15% of titanium dioxide, 0.3-0.5% of calcium oxide, 1.0-1.2% of magnesium oxide, 3-4% of potassium oxide and 2-3% of sodium oxide.

2. The light-transmitting brick as claimed in claim 1, wherein the raw materials comprise, by mass:

40-45% of stone powder, 30-35% of mud, 10-15% of kaolin, 5-10% of sand and 2-4% of warehouse slag 13.

3. The light-transmitting brick according to claim 2, wherein the stone powder comprises one or more of a first stone powder, a gold stone powder, a Jiangfeng stone powder, a Xinyun stone powder and a Dayun stone powder; the pug comprises one or more of deep white mud 8, washing mud, petrochemical black mud, talc mud and recycled mud powder; the kaolin material comprises at least one of synthetic clay and Xinyuan kaolin; the sand material comprises at least one of porcelain sand 1121 and rhodin potassium sand.

4. The light-transmitting brick as claimed in claim 3, wherein the raw materials comprise, by mass: 14% of first stone powder, 3% of Jinke stone powder, 5% of Jiangfeng stone powder, 14% of Xinyun stone powder, 8% of industrial stone powder, 8% of deep white mud, 10% of washing mud, 5% of petrified black mud, 3.8% of soldier talc mud, 5% of recovered mud powder, 7% of composite mud, 5% of Xinyuan kaolin, 4% of porcelain sand 1121, 5.2% of rhodine potassium sand and 3% of warehouse slag 13.

5. A light-transmitting brick as claimed in claim 2 or 3, wherein the raw materials further comprise, in mass percent: 1-2% of sodium lignosulphonate and 3-5% of polymethoxy dimethyl ether.

6. A method for preparing a light-transmitting brick as claimed in any one of claims 1 to 5, which comprises:

ball-milling the raw materials of the light-transmitting brick to obtain a blank, and then pressing and forming the blank to obtain a brick blank;

and feeding the green bricks into a kiln to be fired to obtain a product.

7. The method for preparing according to claim 6, wherein the blank further comprises, before the press-forming:

and heating the blank, quenching and crushing to obtain a prepressing material.

8. The method as claimed in claim 7, wherein the heating temperature is 1300-1400 ℃, the quenching end point temperature is 10-15 ℃, and the cooling time is 2-3 min; the particle size of the prepressing material is 100-150 meshes.

9. The method as claimed in claim 6, wherein the pressure for the press molding is 120-160 MPa.

10. The production method according to any one of claims 6 to 9, characterized in that the firing includes a first firing and a second firing;

the first firing temperature is 900-;

the second firing temperature is 1100-1200 ℃, the time is 2-3h, and then the second firing is naturally cooled to the normal temperature.

Technical Field

The invention relates to the field of ceramics, in particular to a light-transmitting brick and a preparation method thereof.

Background

Generally, the ceramic tile cannot transmit light due to process reasons, but the light-transmitting tile is mainly characterized by light transmission, and from the viewpoint of optics and aesthetics, the light transmitted through the light-transmitting tile becomes soft for a light source, and even light with different wavelengths can be transmitted in different time, so that different feelings are given to people. The transparent brick is more and more popular with consumers because of its glittering and translucent effect.

The prior light-transmitting brick mainly pursues the light-transmitting effect and natural texture, but often neglects the problems of the light-transmitting brick such as no high temperature resistance, easy deformation of green brick firing, complex process caused by the green brick needing to be layered, and the like.

Based on this, on the basis of guaranteeing the light-transmitting effect, it is very important to develop a light-transmitting brick which is high temperature resistant, difficult to deform during green brick firing, single in green brick structure and simple in process.

Disclosure of Invention

The invention aims to provide a light-transmitting brick and a preparation method thereof, and aims to solve the problems.

In order to achieve the above purpose, the invention provides the following technical scheme:

a light-transmitting brick comprises the following chemical components in percentage by mass:

64-66% of silicon dioxide, 18-22% of aluminum oxide, 0.5-0.7% of ferric oxide, 0.1-0.15% of titanium dioxide, 0.3-0.5% of calcium oxide, 1.0-1.2% of magnesium oxide, 3-4% of potassium oxide and 2-3% of sodium oxide.

Preferably, the light-transmitting brick comprises the following raw materials in percentage by mass:

40-45% of stone powder, 30-35% of mud, 10-15% of kaolin, 5-10% of sand and 2-4% of warehouse slag 13.

Preferably, the stone powder material comprises one or more of first stone powder, gold stone powder, Jiangfeng stone powder, Xinyun stone powder and large industry stone powder; the pug comprises one or more of deep white mud 8, washing mud, petrochemical black mud, talc mud and recycled mud powder; the kaolin material comprises at least one of synthetic clay and Xinyuan kaolin; the sand material comprises at least one of porcelain sand 1121 and rhodin potassium sand.

Preferably, the raw materials comprise the following components in percentage by mass: 14% of first stone powder, 3% of Jinke stone powder, 5% of Jiangfeng stone powder, 14% of Xinyun stone powder, 8% of industrial stone powder, 8% of deep white mud, 10% of washing mud, 5% of petrified black mud, 3.8% of soldier talc mud, 5% of recovered mud powder, 7% of composite mud, 5% of Xinyuan kaolin, 4% of porcelain sand 1121, 5.2% of rhodine potassium sand and 3% of warehouse slag 13.

Preferably, the raw materials further comprise, by mass: 1-2% of sodium lignosulphonate and 3-5% of polymethoxy dimethyl ether.

A preparation method of the light-transmitting brick comprises the following steps:

ball-milling the raw materials of the light-transmitting brick to obtain a blank, and then pressing and forming the blank to obtain a brick blank;

and feeding the green bricks into a kiln to be fired to obtain a product.

Preferably, the blank further comprises, before the press forming:

and heating the blank, quenching and crushing to obtain a prepressing material.

Preferably, the heating temperature is 1300-1400 ℃, the quenching end temperature is 10-15 ℃, and the cooling time is 2-3 min; the particle size of the prepressing material is 100-150 meshes.

Preferably, the pressure of the compression molding is 120-160 MPa.

Preferably, the firing comprises a first firing and a second firing;

the first firing temperature is 900-;

the second firing temperature is 1100-1200 ℃, the time is 2-3h, and then the second firing is naturally cooled to the normal temperature.

Compared with the prior art, the invention has at least the following beneficial effects:

according to the light-transmitting brick provided by the application, the chemical components are selected, adjusted and accurately controlled, and the light-transmitting brick which is simple in structure, high-temperature resistant, difficult to deform during green brick firing, high in light transmittance and glittering and translucent in light shadow effect is obtained by matching silicon dioxide, aluminum oxide, ferric oxide, titanium dioxide, calcium oxide, magnesium oxide, potassium oxide and sodium oxide;

the preparation method of the light-transmitting brick is simple to operate and high in yield.

Detailed Description

The terms as used herein:

"prepared from … …" is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

The conjunction "consisting of … …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of … …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when the range "1 ~ 5" is disclosed, the ranges described should be construed to include the ranges "1 ~ 4", "1 ~ 3", "1 ~ 2 and 4 ~ 5", "1 ~ 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.

In these examples, the parts and percentages are by mass unless otherwise indicated.

"part by mass" means a basic unit of measure indicating a mass ratio of a plurality of components, and 1 part may represent any unit mass, for example, 1g or 2.689 g. If we say that the part by mass of the component A is a part by mass and the part by mass of the component B is B part by mass, the ratio of the part by mass of the component A to the part by mass of the component B is a: b. alternatively, the mass of the A component is aK and the mass of the B component is bK (K is an arbitrary number, and represents a multiple factor). It is unmistakable that, unlike the parts by mass, the sum of the parts by mass of all the components is not limited to 100 parts.

"and/or" is used to indicate that one or both of the illustrated conditions may occur, e.g., a and/or B includes (a and B) and (a or B).

The invention provides a light-transmitting brick, which comprises the following chemical components in percentage by mass:

64-66% of silicon dioxide, 18-22% of aluminum oxide, 0.5-0.7% of ferric oxide, 0.1-0.15% of titanium dioxide, 0.3-0.5% of calcium oxide, 1.0-1.2% of magnesium oxide, 3-4% of potassium oxide and 2-3% of sodium oxide.

Alternatively, in the light-transmitting brick, the content of silica may be any value between 64%, 64.5%, 65%, 65.5%, 66% and 64-66%, the content of alumina may be any value between 18%, 19%, 20%, 21%, 22% and 18-22%, the content of ferric oxide may be any value between 0.5%, 0.6%, 0.7% and 0.5-0.7%, the content of titanium dioxide may be any value between 0.1%, 0.11%, 0.12%, 0.13%, 0.14%, 0.15% and 0.1-0.15%, the content of calcium oxide may be any value between 0.3%, 0.4%, 0.5% and 0.3-0.5%, the content of magnesium oxide may be any value between 1.0%, 1.1%, 1.2% and 1.0-1.2%, and the content of potassium oxide may be any value between 3%, 3.1%, 3.2%, 3.3.3%, 3.3.2%, 3.2% and 3-1.2%, by mass%, respectively, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0% and any value between 3 and 4%, the content of sodium oxide may be any value between 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3% and 2 to 3%.

Preferably, the light-transmitting brick comprises the following raw materials in percentage by mass:

40-45% of stone powder, 30-35% of mud, 10-15% of kaolin, 5-10% of sand and 2-4% of warehouse slag 13.

The selection of raw materials requires consideration of firing performance, strength, workability, and cost in addition to consideration of components.

Optionally, the amount of the stone powder used in the light-transmitting brick may be any value between 40%, 41%, 42%, 43%, 44%, 45% and 40-45% by mass; the amount of the pug can be any value between 30%, 31%, 32%, 33%, 34%, 35% and 30-35%; the amount of kaolin material may be any amount between 10%, 11%, 12%, 13%, 14%, 15% and 10-15%; the amount of sand may be any value between 5%, 6%, 7%, 8%, 9%, 10% and 5-10%; the amount of the silo slag 13 may be any of 2%, 3%, 4% and 2-4%.

Preferably, the stone powder material comprises one or more of first stone powder, gold stone powder, Jiangfeng stone powder, Xinyun stone powder and large industry stone powder; the pug comprises one or more of deep white mud 8, washing mud, petrochemical black mud, talc mud and recycled mud powder; the kaolin material comprises at least one of synthetic clay and Xinyuan kaolin; the sand material comprises at least one of porcelain sand 1121 and rhodin potassium sand.

The stone powder, the pug, the kaolin and the sand are optimized, the stone powder is used as a framework material, the pug and the kaolin are used as auxiliary materials, the sand and the bin slag are used as synergistic materials, and the materials are matched with each other, so that the brick has a decisive effect on the improvement of the light transmittance, the high-temperature firing resistance, the stability and the strength of a finished brick.

Preferably, the raw materials comprise the following components in percentage by mass: 14% of first stone powder, 3% of Jinke stone powder, 5% of Jiangfeng stone powder, 14% of Xinyun stone powder, 8% of industrial stone powder, 8% of deep white mud, 10% of washing mud, 5% of petrified black mud, 3.8% of soldier talc mud, 5% of recovered mud powder, 7% of composite mud, 5% of Xinyuan kaolin, 4% of porcelain sand 1121, 5.2% of rhodine potassium sand and 3% of warehouse slag 13.

Tests prove that under the formula conditions, the product brick has the best comprehensive performance in the aspects of light transmittance, high-temperature firing resistance, stability, strength and the like.

Preferably, the raw materials further comprise, by mass: 1-2% of sodium lignosulphonate and 3-5% of polymethoxy dimethyl ether.

Alternatively, the amount of sodium lignosulfonate in the feedstock may be any value between 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2% and 1-2%, and the amount of polymethoxy dimethyl ether may be any value between 3%, 3.5%, 4%, 4.5%, 5% and 3-5%.

The sodium lignosulfonate is used as an additive, mainly has a function of improving the light transmittance of a brick body, can improve the high-temperature resistance of a green brick, and can reduce the high-temperature deformation rate. The polymethoxy dimethyl ether mainly plays a role in improving the effect of mixing and ball milling of other raw materials, plays a role similar to a 'lubricant' among the raw materials, and is helpful for improving the strength and the high temperature resistance of a brick body.

A preparation method of the light-transmitting brick comprises the following steps:

ball-milling the raw materials of the light-transmitting brick to obtain a blank, and then pressing and forming the blank to obtain a brick blank;

and feeding the green bricks into a kiln to be fired to obtain a product.

Preferably, the blank further comprises, before the press forming:

and heating the blank, quenching and crushing to obtain a prepressing material.

Preferably, the heating temperature is 1300-1400 ℃, the quenching end temperature is 10-15 ℃, and the cooling time is 2-3 min; the particle size of the prepressing material is 100-150 meshes.

The heat treatment is carried out firstly, and then the quenching and crushing are carried out, which is helpful for improving the light transmittance of the finished brick. The control of the grain diameter is helpful to the improvement of the high temperature resistance of the green brick besides optimizing the light transmittance.

Alternatively, the temperature of the heating and melting may be any value between 1300 ℃, 1310 ℃, 1320 ℃, 1330 ℃, 1340 ℃, 1350 ℃, 1360 ℃, 1370 ℃, 1380 ℃, 1390 ℃, 1400 ℃ and 1300-; the particle size of the pre-pressing material can be any value between 100 meshes, 110 meshes, 120 meshes, 130 meshes, 140 meshes, 150 meshes and 100 meshes and 150 meshes.

Preferably, the pressure of the compression molding is 120-160 MPa.

Preferably, the firing comprises a first firing and a second firing;

the first firing temperature is 900-;

the second firing temperature is 1100-1200 ℃, the time is 2-3h, and then the second firing is naturally cooled to the normal temperature.

The light transmittance and the strength can be improved and the deformation rate can be controlled by firing twice.

Alternatively, the pressure of the press molding may be any value between 120MPa, 130MPa, 140MPa, 150MPa, 160MPa, and 120MPa and 160 MPa; the temperature of the first firing can be any value between 900 ℃, 910 ℃, 920 ℃, 930 ℃, 940 ℃, 950 ℃, 960 ℃, 970 ℃, 980 ℃, 990 ℃, 1000 ℃ and 900-; the second firing temperature may be any value between 1100 ℃, 1110 ℃, 1120 ℃, 1130 ℃, 1140 ℃, 1150 ℃, 1160 ℃, 1170 ℃, 1180 ℃, 1190 ℃, 1200 ℃ and 1100-.

Embodiments of the present invention will be described in detail below with reference to specific examples, but those skilled in the art will appreciate that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

Example 1

Preparing raw materials:

14kg of first stone powder, 3kg of Jinke stone powder, 5kg of Jiangfeng stone powder, 14kg of Xinyun stone powder, 8kg of large industrial stone powder, 8kg of deep white mud, 10kg of washed mud, 5kg of petrified black mud, 3.8kg of soldier talc mud, 5kg of recycled mud powder, 7kg of synthetic mud, 5kg of Xinyuan kaolin, 4kg of porcelain sand 1121, 5.2kg of rhodine potassium sand and 3kg of warehouse slag 13.

Adding water into the raw materials, performing ball milling to obtain a blank, and then performing compression molding on the blank under the condition of 120MPa to obtain a green brick; after being treated by optional steps of grinding, ink jetting, glazing and the like, the green brick is sent into a kiln for firing and then polished to obtain a product; the firing comprises a first firing and a second firing, wherein the first firing is carried out at 900 ℃ for 2h, and then the second firing is carried out after the first firing is naturally cooled to 600 ℃; the temperature of the second firing is 1100 ℃, the time is 3 hours, and after the second firing is finished, the second firing is naturally cooled to the normal temperature.

Controlling the ignition loss to be 4%; the chemical components of the detected light-transmitting brick comprise the following components in percentage by mass: 65.82% of silicon dioxide, 21.48% of aluminum oxide, 0.6% of ferric oxide, 0.14% of titanium dioxide, 0.3% of calcium oxide, 1.2% of magnesium oxide, 4% of potassium oxide and 2.4% of sodium oxide, and the balance of impurities.

Example 2

Preparing raw materials:

13kg of first stone powder, 4kg of Jinke stone powder, 4.5kg of Jiangfeng stone powder, 14.5kg of Xinyun stone powder, 9kg of industrial stone powder, 8kg of 9kg of deep white mud, 9kg of washing mud, 4kg of petrified black mud, 5kg of soldier talc mud, 4kg of recycled mud powder, 5kg of combined mud, 5kg of Xinyuan kaolin, 2.5kg of porcelain sand 1121, 2.5kg of rhodine potassium sand, 4kg of warehouse slag 13, 2kg of sodium lignosulfonate and 3kg of polymethoxy dimethyl ether.

Adding water into the raw materials, performing ball milling to obtain a blank, heating the blank to 1300 ℃, quenching and cooling to 10 ℃ within 2min to obtain a block material, and crushing to obtain a prepressing material with the particle size of 100 meshes; pressing and molding the pre-pressing material under the condition of 130MPa to obtain a green brick; after being treated by optional steps of grinding, ink jetting, glazing and the like, the green brick is sent into a kiln for firing and then polished to obtain a product; the firing comprises a first firing and a second firing, wherein the first firing is carried out at 950 ℃ for 1.5h, and then the second firing is carried out after the first firing is naturally cooled to 700 ℃; the temperature of the second firing is 1150 ℃, the time is 2.5 hours, and after the second firing is finished, the second firing is naturally cooled to the normal temperature.

Controlling the ignition loss to be 5%; the chemical components of the detected light-transmitting brick comprise the following components in percentage by mass: 64.56% of silicon dioxide, 18.93% of aluminum oxide, 0.5% of ferric oxide, 0.15% of titanium dioxide, 0.5% of calcium oxide, 1.0% of magnesium oxide, 3.52% of potassium oxide and 3% of sodium oxide, and the balance of impurities.

Example 3

Preparing raw materials:

13kg of first stone powder, 3kg of Jinke stone powder, 4kg of Jiangfeng stone powder, 13kg of Xinyun stone powder, 7kg of large industrial stone powder, 8kg of deep white mud, 10kg of washed mud, 6kg of petrified black mud, 5kg of soldier talc mud, 6kg of recovered mud powder, 6kg of synthetic mud, 6kg of Xinyuan kaolin, 3kg of porcelain sand 1121, 3kg of rhodine potassium sand, 2kg of warehouse residues 13, 1kg of sodium lignosulfonate and 4kg of polymethoxy dimethyl ether.

Adding water into the raw materials, performing ball milling to obtain a blank, heating the blank to 1400 ℃, quenching and cooling to 15 ℃ within 3min to obtain a block material, and crushing to obtain a pre-pressed material with the particle size of 150 meshes; pressing and molding the pre-pressing material under the condition of 160MPa to obtain a green brick; after being treated by optional steps of grinding, ink jetting, glazing and the like, the green brick is sent into a kiln for firing and then polished to obtain a product; the firing comprises a first firing and a second firing, wherein the first firing is carried out at 1000 ℃ for 1h, and then the second firing is carried out after the first firing is finished and the first firing is naturally cooled to 800 ℃; the temperature of the second firing is 1200 ℃, the time is 2 hours, and after the second firing is finished, the second firing is naturally cooled to the normal temperature.

Controlling the ignition loss to be 6 percent; the chemical components of the detected light-transmitting brick comprise the following components in percentage by mass: 65.33% of silicon dioxide, 20.41% of aluminum oxide, 0.62% of ferric oxide, 0.11% of titanium dioxide, 0.36% of calcium oxide, 1.1% of magnesium oxide, 3% of potassium oxide and 2.06% of sodium oxide, and the balance of impurities.

Example 4

Preparing raw materials:

11.5kg of first stone powder, 3kg of Jinke stone powder, 4.5kg of Jiangfeng stone powder, 13kg of Xinyun stone powder, 8kg of industrial stone powder, 6kg of deep white mud, 8kg of washing mud, 6kg of petrochemical black mud, 4kg of soldier talc mud, 6kg of recycled mud powder, 6kg of synthetic mud, 6kg of Xinyuan kaolin, 5kg of porcelain sand 1121, 5kg of rhodine potassium sand, 2kg of warehouse residues 13, 1.5kg of sodium lignosulfonate and 4.5kg of polymethoxy dimethyl ether.

Adding water into the raw materials, performing ball milling to obtain a blank, heating the blank to 1350 ℃, quenching and cooling to 12 ℃ within 2.5min to obtain a block material, and crushing to obtain a prepressing material with the particle size of 120 meshes; pressing and molding the pre-pressing material under the condition of 140MPa to obtain a green brick; after being treated by optional steps of grinding, ink jetting, glazing and the like, the green brick is sent into a kiln for firing and then polished to obtain a product; the firing comprises a first firing and a second firing, wherein the first firing is carried out at 900 ℃ for 2h, and then the second firing is carried out after the first firing is naturally cooled to 600 ℃; the temperature of the second firing is 1100 ℃, the time is 3 hours, and after the second firing is finished, the second firing is naturally cooled to the normal temperature.

Controlling the ignition loss to be 4.5%; the chemical components of the detected light-transmitting brick comprise the following components in percentage by mass: 64.81 percent of silicon dioxide, 19.77 percent of aluminum oxide, 0.66 percent of ferric oxide, 0.13 percent of titanium dioxide, 0.42 percent of calcium oxide, 1.13 percent of magnesium oxide, 3.56 percent of potassium oxide, 2.87 percent of sodium oxide and the balance of impurities.

Example 5

Unlike example 2, no sodium lignosulfonate was added.

Example 6

In contrast to example 2, no polymethoxydimethyl ether was added.

Example 7

Unlike example 2, no heating and quenching treatment was performed.

Comparative example 1

Unlike example 1, the firing was carried out directly at 1100 ℃ for 5 hours.

Comparative example 2

Unlike example 1, only stone powder No. one was used as the stone powder.

Comparative example 3

In contrast to example 1, only dark white mud 8 was used as the pug.

Comparative example 4

Unlike example 1, only Xinyuan kaolin was used for the kaolin material.

Comparative example 5

Unlike example 1, the raw material contained no slag 13.

The products obtained in examples 1 to 7 and comparative examples 1 to 5 were tested for whiteness, modulus of rupture, transmission of incident light and yield (2000 pieces per set), with the results shown in table 1 below:

TABLE 1 test data

By analyzing the data in the table 1, the comparative example 1 is compared with the example 1, and the sintering mode of twice sintering is adopted, so that the deformation rate of directly sintering at high temperature can be reduced, and meanwhile, the light transmittance and the strength of the finished brick can be improved; compared with the example 1, the selection and the preparation of the stone powder have certain influence on the high-temperature deformation rate of the brick body, but can obviously influence the strength, the whiteness and the incident light transmittance; compared with the example 1, the comparative example 3 shows that the selection of the pug has certain influence on the strength, the deformation rate, the whiteness and the incident light transmittance; compared with the example 1, the selection of the kaolin material has certain influence on whiteness, strength, incident light transmittance and deformation rate; compared with example 1, the use of the slag in comparative example 5 can improve whiteness, incident light transmittance, strength and deformation rate. As can be seen from the comparison between the embodiments 1 to 7, the addition of sodium lignosulfonate and polymethoxydimethyl ether in the raw materials, and the heating and quenching treatment of the blank can improve the whiteness, the incident light transmittance and the strength of the light-transmitting brick and reduce the high-temperature deformation rate; wherein, the polyoxymethylene dimethyl ethers are mainly used for improving the strength of the finished brick.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.