CN113149624A - Light closed-pore ceramic material prepared from steel slag and preparation method thereof - Google Patents
Light closed-pore ceramic material prepared from steel slag and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a light closed-pore ceramic material prepared from steel slag and a preparation method thereof, wherein the material is prepared from the following raw materials in percentage by mass: 15-35% of steel slag, 15-25% of high-aluminum raw material and 40-60% of flux raw material, wherein the total content of the raw materials is 100%; solves the problems that in the prior art of preparing the light closed-pore ceramic material by using the steel slag, the product is easy to crack, the production cost is high and the control range of the formula material is narrow during firing.
Description
Technical Field
The invention belongs to the technical field of steel slag solid waste treatment, and particularly relates to a light closed-pore ceramic material prepared from steel slag and a preparation method thereof.
Background
Along with the rapid development of national economy of China, the demand for steel is more and more great, and the rapid development of the steel industry is brought, so that the large amount of industrial solid waste, namely steel slag, generated in the steel production is also brought. According to statistics, the accumulated steel slag in the whole country is about 10 hundred million tons, occupies a large amount of land and causes environmental pollution. Therefore, the resource utilization of the steel slag is a demand for social development. Meanwhile, the light closed-pore material has a wider and wider utilization range, and can be used for the aspects of external wall heat preservation, heat insulation, building internal wall, pipeline heat preservation, sound absorption, noise reduction and the like.
The steel slag mainly comprises calcium, iron, silicon, magnesium and a small amount of oxides of aluminum, manganese, phosphorus and the like. The contained components are the same as those required by ceramic production, so that the steel slag is recycled as a ceramic raw material to prepare the light closed-pore ceramic material is a development direction.
In the prior art for preparing the light closed-cell ceramic material by using the steel slag, the lithium tailings, the steel slag tailings, the clay raw material, the foaming material A and water are generally mixed according to a certain proportion, the mixture is ground and sieved for removing iron, the mixture is placed into a mud pit and is filter-pressed into a mud cake, then, mud is pugged, the foaming material B polyphenyl particles are added in the pugging process, a mud section extruded by pugging is extruded to form a foamed ceramic wet blank, the wet blank is sent into a tunnel kiln for drying, then, the foamed ceramic wet blank is baked into a blank brick at the high temperature of 1100-1200 ℃ in an energy-saving double-layer tunnel kiln according to a certain baking system, and the finished product is obtained after processing and cutting. However, the production method adopts wet production, the polyphenyl particles are added in the production process, the polyphenyl particles play a role of occupying space and forming holes, the polyphenyl particles are compressed under the pressure of an extruder during molding, and the polyphenyl particles rebound after stress release after extrusion, so that a green body is cracked, and the product cost is improved. In addition, the foaming material A contains SiC fine powder and Fe2O3Fine powder, MnO2The mixture of the fine powder comprises the following main chemical components: SiC: 20 to 45% of Fe2O3：45～65％，MnO2: 1-12% of Fe is introduced2O3The content of iron oxide in the fine powder and the steel slag is up to 18 percent, and the introduction of the iron component ensures that the control range of the ingredients during the firing is narrow and can not meet the production requirements.
Disclosure of Invention
The invention aims to provide a light closed-pore ceramic material prepared from steel slag and a preparation method thereof, and aims to solve the problems that in the prior art of preparing the light closed-pore ceramic material from the steel slag, a product is easy to crack, the production cost is high, and the control range of a formula material during firing is narrow.
The invention adopts the following technical scheme: the light closed-pore ceramic material prepared from the steel slag is prepared from the following raw materials in percentage by mass:
15 to 35 percent of steel slag,
15 to 25 percent of high-aluminum raw material,
40 to 60 percent of flux raw material,
the total content of the raw materials is 100 percent;
wherein the high-aluminum raw material is formed by mixing one or more of kaolin, coal gangue and fly ash; the fluxed raw material is formed by mixing one or more of potassium feldspar, albite, lithium feldspar and lithium porcelain stone.
Further, the steel slag in the raw materials comprises the following components in percentage by mass: SiO 2212％～17％、Al2O35％～8％、Fe2O3 18％～22％、CaO 38％～45％、MgO 5％～8％、K2O and Na2O 0～1％。
Further, Al in the high-aluminum raw material2O3The mass percentage of the component (A) is more than or equal to 30 percent.
The second technical scheme adopted by the invention is that the preparation method of the light closed-pore ceramic material prepared from the steel slag comprises the following steps:
1, crushing the steel slag to 1-3mm, and grinding the steel slag into powder for later use, wherein the granularity of the powder is less than 0.1 mm;
and 5, firing the material distributed in the step 4 at 1180-1220 ℃ to obtain a semi-finished product, naturally cooling to room temperature, and cutting the cooled semi-finished product to obtain the light closed-pore ceramic material prepared from the steel slag.
Further, the steel slag in the step 1 adopts a material taking mode of vertically taking layer piles before being crushed.
The invention has the advantages that the invention adopts mature production process, the production process is easy to control, and the product yield is high; the product has uniform pore distribution, high compressive strength and low heat conductivity coefficient; the product has wide application range, and can be applied to the aspects of inner wall partition walls, decoration and finishing materials, subways, refrigeration houses and the like; the product has good processability.
Drawings
FIG. 1 is a mineral analysis diagram of a steel slag feedstock according to the present invention;
FIG. 2 is a mineral analysis graph of a light closed-cell ceramic material prepared from the steel slag obtained in example 2 of the present invention;
FIG. 3 is a pore size diagram of a light closed-cell ceramic material prepared from the steel slag obtained in example 2 of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention provides a light closed-pore ceramic material prepared from steel slag, which is prepared from the following raw materials in percentage by mass:
15 to 35 percent of steel slag,
15 to 25 percent of high-aluminum raw material,
40 to 60 percent of flux raw material,
the total content of the raw materials is 100 percent.
Wherein the high-aluminum raw material is formed by mixing one or more of kaolin, coal gangue and fly ash; the fluxed raw material is formed by mixing one or more of potassium feldspar, albite, lithium feldspar and lithium porcelain stone.
In some embodiments, the steel slag used in the raw materials comprises the following components in percentage by mass: SiO 22 12％～17％、Al2O35％～8％、Fe2O318％～22％、CaO 38％～45％、MgO 5％～8％、K2O and Na2O 0～1％。
In some embodiments, the high aluminum feedstock comprises Al2O3The mass percentage of the component (A) is more than or equal to 30 percent. The high-aluminum raw material has high aluminum content, which means that the raw material belongs to a good-quality raw material and has less impurities.
The invention also provides a preparation method of the light closed-pore ceramic material prepared from the steel slag, which comprises the following steps:
step 1, crushing the steel slag to 1-3mm, and grinding the steel slag into powder for later use, wherein the granularity of the powder is less than 0.1 mm; the steel slag adopts a material taking mode of stacking and vertically taking before being crushed.
and 4, uniformly distributing the granulated material treated in the step 3, wherein the thickness is usually 80 mm.
And 5, firing the material distributed in the step 4 at 1180-1220 ℃ to obtain a semi-finished product, naturally cooling to room temperature, and cutting the cooled semi-finished product to obtain the light closed-pore ceramic material prepared from the steel slag.
The formula content of the finally formed light closed-pore ceramic material prepared from the steel slag is as follows: SiO 22 55％～65％、Al2O3 15％～25％、Fe2O3 3％～8％、(CaO+MgO)7％～16％、(K2O+Na2O)3％～6％。
Example 1
1, crushing the steel slag to 1-3mm, and grinding the steel slag into powder for later use, wherein the granularity of the powder is less than 0.1 mm;
and 5, firing the material distributed in the step 4 at 1180 ℃ to form a semi-finished product, naturally cooling to room temperature, and cutting the cooled semi-finished product to obtain the light closed-pore ceramic material prepared from the steel slag. The sample obtained in example 1 was examined to find that the density was 380kg/m3The compression strength is 5.48MPa, and the chemical composition is as follows: SiO 22 55.14％、Al2O3 0.3％、Fe2O33.8％、CaO 7.1％、MgO 1.1％、(K2O+Na2O)5.3％。
Example 2
1, crushing the steel slag to 1-3mm, and grinding the steel slag into powder for later use, wherein the granularity of the powder is less than 0.1 mm;
and 5, firing the material distributed in the step 4 at 1180 ℃ to form a semi-finished product, naturally cooling to room temperature, and cutting the cooled semi-finished product to obtain the light closed-pore ceramic material prepared from the steel slag. The sample obtained in example 2 was examined to find that it had a density of 430kg/m3The compressive strength is 6.3MPa, and the chemical composition is as follows: SiO 22 55％、Al2O3 18.44％、Fe2O33.95％、CaO 8.28％、MgO 1.29％、(K2O+Na2O)4.5％。
Example 3
1, crushing the steel slag to 1-3mm, and grinding the steel slag into powder for later use, wherein the granularity of the powder is less than 0.1 mm;
and 5, firing the material distributed in the step 4 at 1180 ℃ to form a semi-finished product, naturally cooling to room temperature, and cutting the cooled semi-finished product to obtain the light closed-pore ceramic material prepared from the steel slag. The sample obtained in example 3 was examined to find that it had a density of 380kg/m3The compressive strength is 6.7MPa, and the chemical composition is as follows: SiO 22 57.12％、Al2O3 16.95％、Fe2O37.13％、CaO 13.1％、MgO 2.2％、(K2O+Na2O)3.5％。
Example 4
1, crushing the steel slag to 1-3mm, and grinding the steel slag into powder for later use, wherein the granularity of the powder is less than 0.1 mm;
and 5, firing the material distributed in the step 4 at 1180 ℃ to form a semi-finished product, naturally cooling to room temperature, and cutting the cooled semi-finished product to obtain the light closed-pore ceramic material prepared from the steel slag. The sample obtained in example 1 was examined to find that it had a density of 480kg/m3And the compressive strength is 7.0 MPa.
The invention utilizes the characteristics of high calcium, high iron and high magnesium of the steel slag, and adds aluminum-containing non-metallic mineral raw materials and flux mineral raw materials to reconstruct high-temperature crystalline phase of the steel slag, wherein the crystalline phase is formed by converting dicalcium silicate, dicalcium ferrite and calcium iron garnet into a blank with quartz and plagioclase feldspar as main crystalline phases, thereby achieving the maximum application of the steel slag, wherein calcium and magnesium form a solid solution which is stable by using the crystal phases of the calcium magnesium yellow feldspar and the quartz as the main phases, and simultaneously, free calcium is solidified, thereby realizing the stability of calcium and magnesium and producing the light closed-pore ceramic material meeting the standard requirements.
FIG. 1 is a mineral analysis diagram of a steel slag raw material used in the present invention, which shows that the mineral composition of the steel slag is dicalcium ferrite, dicalcium silicate, calcium iron garnet, lime, wustite, etc. Fig. 2 is a mineral analysis graph of a light closed-cell ceramic material prepared using steel slag according to example 2, and it can be seen from fig. 2 that the light closed-cell ceramic material has a composition of 39.3% quartz, 27.9% plagioclase feldspar, etc. Fig. 3 is a pore size diagram of the light closed-cell ceramic material of example 2, and it can be seen from the comparison of fig. 1, fig. 2 and fig. 3 that the steel slag raw material is processed by the process of example 2 to obtain a product, i.e. the light closed-cell ceramic material is indeed subjected to crystal phase conversion, thereby realizing maximum application of the steel slag.
From the density and the compressive strength of the products in the three embodiments, the lightweight closed-cell ceramic material prepared by using the steel slag meets the requirements of the standard T/CBCSA12-2019 foaming ceramic partition board, the strength is far higher than the standard requirement, and the lightweight closed-cell ceramic material meets the requirements of high compressive strength and low thermal conductivity coefficient. The product can be cut into different specifications according to the size requirement, and can also be processed into decorative materials.
Because the existing closed-cell ceramic material in the market has low strength and is easy to crack, the light closed-cell ceramic material adopts the steel slag as the raw material in the preparation process, thereby improving the strength and toughness of the product and preventing the generation of cracks; the steel slag and the fly ash replace part of ceramic raw materials, so that the production cost is reduced; by adjusting the chemical composition of the formula, the sintering range is widened, and the problems that cracks are easy to generate, the production cost is high and the control range of the formula material is narrow during sintering in the prior art are solved.
Claims (5)
1. The light closed-pore ceramic material prepared from the steel slag is characterized by being prepared from the following raw materials in percentage by mass:
15 to 35 percent of steel slag,
15 to 25 percent of high-aluminum raw material,
40 to 60 percent of flux raw material,
the total content of the raw materials is 100 percent;
wherein the high-aluminum raw material is formed by mixing one or more of kaolin, coal gangue and fly ash; the fluxed raw material is formed by mixing one or more of potassium feldspar, albite, lithium feldspar and lithium porcelain stone.
2. The lightweight closed-cell ceramic material prepared from steel slag according to claim 1, wherein the steel slag in the raw material comprises the following components in percentage by mass: SiO 22 12％～17％、Al2O3 5％～8％、Fe2O318％～22％、CaO 38％～45％、MgO 5％～8％、K2O and Na2O 0～1％。
3. The lightweight closed-cell ceramic material made from steel slag according to claim 1 or 2, wherein Al in the high-alumina raw material2O3The mass percentage of the component (A) is more than or equal to 30 percent.
4. The method for preparing a lightweight closed-cell ceramic material using steel slag according to any one of claims 1 to 3, comprising the steps of:
1, crushing the steel slag to 1-3mm, and grinding the steel slag into powder for later use, wherein the granularity of the powder is less than 0.1 mm;
step 2, mixing the high-aluminum raw material, the flux raw material and the steel slag treated in the step 1 according to a ratio, and adding the mixture into a ball mill, wherein the ball mill comprises the following materials: ball: adding 0.3-0.5% of a debonder into water with the mass ratio of 1:1.6:0.5, and grinding into slurry, wherein the fineness of the slurry is 1-1.5% of 48 mu m screen residue;
step 3, spraying the slurry prepared in the step 2 into a spray drying tower, and granulating at a high temperature of 600-800 ℃ to obtain granulated materials, wherein the water content of the granulated materials is 5-7%; in the granulating material, the granulating powder with the particle size of 180-380 mu m is more than 75 percent, and the granulating powder with the particle size of 0-150 mu m is less than 5 percent; aging the granulated material in a storage bin for 24 hours for later use;
step 4, uniformly distributing the granulated material processed in the step 3;
and 5, firing the material distributed in the step 4 at 1180-1220 ℃ to obtain a semi-finished product, naturally cooling to room temperature, and cutting the cooled semi-finished product to obtain the light closed-pore ceramic material prepared from the steel slag.
5. The preparation method of claim 4, wherein the steel slag in step 1 is taken from a pile in a vertical manner before being crushed.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114315411A (en) * | 2022-01-24 | 2022-04-12 | 咸阳科源陶瓷有限公司 | Method for preparing high-strength sintered water permeable brick by using coal gangue as main raw material |
| CN114920544A (en) * | 2022-04-04 | 2022-08-19 | 新疆互力佳源环保科技有限公司 | Heat storage ceramic material taking steel slag as main component and preparation method thereof |
| CN114988851A (en) * | 2022-07-14 | 2022-09-02 | 山东理工大学 | Method for preparing lightweight porous ceramic material by efficiently utilizing steel slag |
| CN115353410A (en) * | 2022-08-09 | 2022-11-18 | 武汉理工大学 | Steel slag foamed ceramic decorative plate with groove-shaped glaze and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5478392A (en) * | 1991-10-23 | 1995-12-26 | Pelt & Hooykaas B.V. | Porous granulated steel slag composition and use of such as aggregate or cement replacement in building materials, road building and embankment |
| CN110759738A (en) * | 2018-07-27 | 2020-02-07 | 广东清大同科环保技术有限公司 | Steel slag ceramsite and preparation method thereof |
-
2020
- 2020-12-29 CN CN202011600128.3A patent/CN113149624A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5478392A (en) * | 1991-10-23 | 1995-12-26 | Pelt & Hooykaas B.V. | Porous granulated steel slag composition and use of such as aggregate or cement replacement in building materials, road building and embankment |
| CN110759738A (en) * | 2018-07-27 | 2020-02-07 | 广东清大同科环保技术有限公司 | Steel slag ceramsite and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 任育鹏 等: "以钢渣和尾矿为主要原料的多孔陶瓷制备机理", 《冶金工程》 * |
| 华长旭 等: "黏土对钢渣烧结的影响规律研究", 《环境工程》 * |
| 戴传德 等: "利用钢渣和粉煤灰制备陶瓷试样的力学性能", 《第二十届（2017年）冶金反应工程学学术会议论文集》 * |
| 梁健 等: "利用钢渣及陶瓷废渣制备新型建材", 《陶瓷学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114315411A (en) * | 2022-01-24 | 2022-04-12 | 咸阳科源陶瓷有限公司 | Method for preparing high-strength sintered water permeable brick by using coal gangue as main raw material |
| CN114315411B (en) * | 2022-01-24 | 2023-06-23 | 咸阳科源新材装备有限公司 | Method for preparing high-strength sintered water permeable brick by taking coal gangue as main raw material |
| CN114920544A (en) * | 2022-04-04 | 2022-08-19 | 新疆互力佳源环保科技有限公司 | Heat storage ceramic material taking steel slag as main component and preparation method thereof |
| CN114988851A (en) * | 2022-07-14 | 2022-09-02 | 山东理工大学 | Method for preparing lightweight porous ceramic material by efficiently utilizing steel slag |
| CN115353410A (en) * | 2022-08-09 | 2022-11-18 | 武汉理工大学 | Steel slag foamed ceramic decorative plate with groove-shaped glaze and preparation method thereof |
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