阅读说明：本技术 一种低温快烧的瓷质砖胚体及该瓷质砖的制备方法 (Low-temperature fast-fired ceramic brick blank and preparation method of ceramic brick ) 是由 刘芳 于 2020-05-13 设计创作，主要内容包括：本发明公开了一种低温快烧的瓷质砖胚体及其制备方法,配方包括以下重量比的原材料：新月钠石粉17-20％；镁质土2-3％；黄坭膏10-13％；黑泥2-4％；龙门砂12-15％；12号砂10-15％；混合砂13-16％；肇庆钾砂8-10％；铝矾土1-2％；以及膨润土12-15％。本发明的低温快烧的瓷质砖胚体,通过优化调整配方结构,调整配方成份,进一步配以相应的工艺方法,使得本发明的配方能够适用于低温快烧工艺,大大缩短烧成周期,进而增加产量,降低制造成本。(The invention discloses a low-temperature fast-fired porcelain tile blank and a preparation method thereof, wherein the formula comprises the following raw materials in parts by weight: 17-20% of crescent sodium stone powder; 2-3% of magnesia soil; 10-13% of yellow mud paste; 2-4% of black mud; 12-15% of Longmen sand; 10-15% of No. 12 sand; 13-16% of mixed sand; zhaoqing potassium sand 8-10%; 1-2% of bauxite; and 12-15% of bentonite. The low-temperature fast-fired ceramic brick blank body is suitable for a low-temperature fast firing process by optimizing and adjusting the formula structure, adjusting the formula components and further matching with a corresponding process method, so that the firing period is greatly shortened, the yield is increased, and the manufacturing cost is reduced.)

1. A low-temperature fast-fired porcelain tile blank is characterized by comprising the following raw materials in parts by weight:

2. a low-temperature fast-fired ceramic tile blank as defined in claim 1, wherein:

3. a low-temperature fast-fired ceramic tile blank according to claim 1, wherein the raw material comprises the following compounds in weight ratio:

and L.O.I is 4.0-4.5.

4. A preparation method of a low-temperature fast-fired ceramic tile is characterized by comprising the following steps in sequence:

1) ball milling: the ingredients are mixed according to the listed sequence of the formula of claim 1 or 2, the raw materials with the weight proportion are sequentially added, then the ball milling is carried out for 13 to 14 hours by using a ball mill, and after the ball milling, the fineness of the slurry is controlled to be 0.4 to 0.6 percent of the screen residue with 250 meshes;

2) removing iron from the slurry and sieving: filtering and deironing by using a 70-mesh screen to obtain slurry, and repeating the steps once;

3) and (3) ageing the slurry: aging the slurry after iron removal and sieving for more than 24 hours at room temperature;

4) preparing powder: preparing the aged slurry into powder with the water content of 6-7% by using a spray drying tower;

5) aging the powder: placing the powder at room temperature for aging for more than 24 hours;

6) removing iron from powder and sieving: filtering and removing iron from the aged powder by adopting a 12-mesh screen to obtain a blank;

7) and (3) pressing and forming: placing the blank in an inner die of a press for pressing, and then conveying the blank to a drying kiln for drying;

8) drying;

9) and (3) decoration: sequentially applying surface glaze, ink-jet printing and polishing glaze;

10) and (3) firing: and (5) firing and forming in a kiln.

5. The method for preparing the low-temperature fast-fired ceramic tile according to claim 4, wherein the method comprises the following steps: the pressing condition of the step 7) is that the pressing is carried out by adopting the pressure of 29000 and 32000 KN.

6. The method for preparing the low-temperature fast-fired ceramic tile according to claim 4, wherein the method comprises the following steps: the firing condition of the step 10) is that the firing period is 30-35min under the condition of 1150-1160 ℃.

7. The method for preparing the low-temperature fast-fired ceramic tile according to claim 4, wherein the grain composition of the powder obtained in the step 4) is as follows:

the weight percentage of the components is weight percentage.

8. The method for preparing the low-temperature fast-fired ceramic tile according to claim 4, wherein the method comprises the following steps: the overglaze comprises the following components in percentage by weight: 15-18% of potassium feldspar, 14-16% of albite, 40-42% of quartz powder, 4-5% of calcined aluminum, 5-7% of kaolin, 4-5% of wollastonite, 2-4% of ball clay and 10-13% of zirconium silicate; the glaze comprises the following components in percentage by weight: 10-12% of potassium feldspar, 27-30% of albite, 3-6% of zinc oxide, 10-12% of calcined kaolin, 4-6% of kaolin, 8-10% of wollastonite, 8-10% of barium carbonate, 10-12% of clinker and 10-12% of dolomite.

9. The method for preparing the low-temperature fast-fired ceramic tile according to claim 4, wherein the method comprises the following steps: step 8) is to send the embryo body to a drying kiln and dry the embryo body for 45 to 60 minutes under the temperature curve condition of 130 to 210 ℃.

Technical Field

The invention relates to the field of building materials, in particular to a low-temperature fast-fired porcelain tile blank and a preparation method of a porcelain tile.

Background

From the production cost ratio of the building ceramic products worldwide, the fuel cost accounts for the largest ratio in the production cost, and reaches more than 40 percent of the total energy consumption of the ceramic industry in various countries. At present, the development of the architectural ceramic industry all over the world is always restricted by high energy consumption. The rising prices of oil, electricity, gas and coal have been continuous in recent 20 years, which has also inhibited the development rate of the ceramic industry. Many domestic ceramic enterprises have high energy consumption cost, so that the product price is raised, and the market competitiveness is reduced. Some enterprises are on the verge of breaking production due to the fact that the enterprises cannot bear higher product cost; in developed countries abroad, enterprises are gradually reducing the ceramic production scale due to the problem of cost that the energy price cannot be digested and rises, or the enterprises try to develop the China to build factories.

Disclosure of Invention

Aiming at the technical problems, the low-temperature fast-fired ceramic tile blank is suitable for a low-temperature fast-firing process, greatly shortens the firing period, further increases the yield and reduces the manufacturing cost.

The technical scheme adopted by the invention for solving the technical problem is as follows: a low-temperature fast-fired porcelain tile blank comprises the following raw materials in percentage by weight:

preferably, the low-temperature fast-fired porcelain tile blank comprises the following raw materials in percentage by weight:

specifically, the components of the raw material comprise the following compounds in weight ratio:

the other technical scheme adopted by the invention for solving the technical problem is as follows: a preparation method of a low-temperature fast-fired ceramic tile sequentially comprises the following steps:

1) ball milling: the materials are mixed according to the listed sequence of the formula, the raw materials with the weight proportion are sequentially added, then the ball milling is carried out for 13 to 14 hours by using a ball mill, and after the ball milling, the fineness of the slurry is controlled to be 0.4 to 0.6 percent of the screen residue of 250 meshes;

2) removing iron from the slurry and sieving: filtering and deironing by using a 70-mesh screen to obtain slurry, and repeating the steps once;

3) and (3) ageing the slurry: aging the slurry after iron removal and sieving for more than 24 hours at room temperature;

4) preparing powder: preparing the aged slurry into powder with the water content of 6-7% by using a spray drying tower;

5) aging the powder: placing the powder at room temperature for aging for more than 24 hours;

6) removing iron from powder and sieving: filtering and removing iron from the aged powder by adopting a 12-mesh screen to obtain a blank;

7) and (3) pressing and forming: placing the blank in an inner die of a press for pressing, and then conveying the blank to a drying kiln for drying;

8) drying;

9) and (3) decoration: sequentially applying surface glaze, ink-jet printing and polishing glaze;

10) and (3) firing: and (5) firing and forming in a kiln.

Specifically, the pressing condition of step 7) is pressing with a pressure of 29000-32000 KN.

Specifically, the firing condition of the step 10) is that the firing period is 30-35min under the condition of 1150-1160 ℃.

Further, the particle composition of the powder obtained in the step 4) is as follows:

number of meshes of powder	Ratio of (a)/%
		Over 30 meshes	18-23
30-40 mesh	30-38
		40-60 mesh	32-41
60 to 100 meshes	≤10
		100 mesh or less	≤1.5

The weight percentage of the components is weight percentage.

Further, the overglaze comprises the following components in percentage by weight: 15-18% of potassium feldspar, 14-16% of albite, 40-42% of quartz powder, 4-5% of calcined aluminum, 5-7% of kaolin, 4-5% of wollastonite, 2-4% of ball clay and 10-13% of zirconium silicate; the glaze comprises the following components in percentage by weight: 10-12% of potassium feldspar, 27-30% of albite, 3-6% of zinc oxide, 10-12% of calcined kaolin, 4-6% of kaolin, 8-10% of wollastonite, 8-10% of barium carbonate, 10-12% of clinker and 10-12% of dolomite.

Further, step 8) is to send the embryo body to a drying kiln, and dry the embryo body for 45 to 60 minutes under the condition of a temperature curve of 130 to 210 ℃.

Compared with the prior art, the method has the following positive effects:

1. the low-temperature fast-fired ceramic tile blank body is suitable for a low-temperature fast firing process by optimizing and adjusting the formula structure, adjusting the formula components and further matching with a corresponding process method, so that the firing period is greatly reduced, the yield is increased and the manufacturing cost is reduced. Compared with the conventional formula in the prior art, the formula of the invention has the advantages that the MgO is increased by 0.3 percent and the K is increased by 0.3 percent compared with the formula before adjustment₂O increased by 0.3%, Na₂The O is increased by 0.3 percent, the loss on ignition L.O.I is reduced by 0.4 percent, the mud clay is reduced by 5 percent,uses bentonite to replace MgO and K₂O、Na₂The increase of flux components such as O and the like can reduce the firing temperature of the formula; the reduction of the ignition loss L.O.I can shorten the firing time; mud clay is replaced by bentonite, so that the firing time can be shortened, the forming performance of powder is improved, and the drying time is shortened.

2. The preparation method of the low-temperature fast-fired ceramic tile blank greatly reduces the firing period, increases the yield and reduces the manufacturing cost by formulating a set of reasonable production steps. The fineness of the industry is basically over 0.8, the fineness of the slurry is controlled to be 250 meshes, the screen residue is controlled to be 0.4-0.6%, the forming performance of the blank is favorably improved, the sintering degree of the blank is better and more compact, and the sintering time is favorably shortened; the adjustment of the powder gradation is beneficial to better exhaust of the blank in the forming process, and provides a precondition for increasing the pressing frequency.

The present invention will be further described with reference to the following examples.

Detailed Description

The invention discloses a low-temperature fast-fired ceramic tile blank, which comprises the following raw materials in percentage by weight:

the raw materials are tested to obtain the chemical components with the following proportions:

the weight percentage is above, and the L.O.I is 4.0-4.5.

The following table 1 shows the weight ratios of the raw materials of examples 1 to 5.

TABLE 1

Wherein, the crescent sodium stone powder is stone powder raw material supplied by Maiyuhua. Magnesia is a talc-based raw material supplied by maybush. The yellow mud paste is a mud paste raw material supplied by Zhongsha. Black mud is a mud raw material supplied by Zhang Jing. Longmen sand is a mixed sand-type raw material supplied by Yuanpun, Webster. Sand No. 12 is a mixed sand-type raw material supplied by kelly corporation. The mixed sand is a raw material of mixed sand supplied by the company of apocapone in the great industry. Zhaoqing potassium sand is a raw ore sand raw material supplied by Yongpo corporation of Wei industry. Bauxite is a stone powder-like raw material supplied by maiyuehua. Bentonite is a clay-based raw material supplied by the company apocapone of the great industry.