CN108129136B - Magnesium oxide-forsterite-carbon composite material for lower part of copper smelting converter and preparation method thereof - Google Patents

Magnesium oxide-forsterite-carbon composite material for lower part of copper smelting converter and preparation method thereof Download PDF

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CN108129136B
CN108129136B CN201810008918.9A CN201810008918A CN108129136B CN 108129136 B CN108129136 B CN 108129136B CN 201810008918 A CN201810008918 A CN 201810008918A CN 108129136 B CN108129136 B CN 108129136B
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forsterite
fine powder
composite material
carbon composite
magnesium oxide
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CN108129136A (en
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徐义彪
李亚伟
桑绍柏
王庆虎
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Wuhan University of Science and Engineering WUSE
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Wuhan University of Science and Engineering WUSE
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Abstract

The invention relates to a magnesium oxide-forsterite-carbon composite material for the lower part of a copper smelting converter and a preparation method thereof. The technical scheme is as follows: firstly, 35-55 wt% of fused magnesia particles, 10-30 wt% of forsterite particles, 6-16 wt% of light-burned magnesia fine powder, 5-15 wt% of pyrophyllite fine powder, 3-7 wt% of earthy graphite micro powder and 3-7 wt% of Si2N2The preparation method comprises the following steps of (1) taking O/SiC/TiC/TiCN/C composite powder, 1-3 wt% of simple substance silicon fine powder, 2-5 wt% of titanium aluminum carbide fine powder and 2-5 wt% of manganese monoxide fine powder as raw materials, adding 2-5 wt% of zirconia sol and 3-5 wt% of cobalt modified phenolic resin as the raw materials, uniformly stirring, forming and drying; and (3) preserving the heat for 2-8 hours under the conditions of carbon-buried atmosphere and 1200-1400 ℃ to obtain the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter. The product prepared by the invention has the characteristics of environmental friendliness, high microporosity, good thermal shock resistance and excellent matte-slag penetration erosion resistance.

Description

Magnesium oxide-forsterite-carbon composite material for lower part of copper smelting converter and preparation method thereof
Technical Field
The present invention belongs to the field of carbon-containing refractory material for copper smelting converter. In particular to a magnesium oxide-forsterite-carbon composite material for the lower part of a copper smelting converter and a preparation method thereof.
Background
The copper smelting converter is important smelting equipment in the copper matte converting process. In the blowing process, air is blown into the matte in the converter, FeS is preferentially oxidized into FeO and reacts with the added quartz to enter the slag; subsequent Cu2S is subjected to oxidation desulphurization to obtain crude product with content of more than 98%.
At present, the lining material of the copper smelting converter generally adopts the magnesia-chrome brick, although the solubility of the magnesia-chrome brick in slag is low, the magnesia-chrome brick is difficult to sinter, the structure is loose, the apparent porosity is high, and the aperture is large. At the lower part of the copper smelting converter, the lining material is directly contacted with the matte with strong permeability; and because the oxygen partial pressure is lower, the iron element in the slag mainly exists in a FeO form with strong permeability and corrosivity. The long-term use process shows that the matte and the slag can permeate into the brick body along the air holes of the magnesia-chrome brick at the lower part of the copper smelting converter and react with the material components, so that the original structure of the refractory material is changed, and a deteriorated layer is formed. Because the structure and the performance of the deteriorated layer are different from those of the original brick layer greatly, part of the refractory materials are separated from the brick body to form stripping, and the magnesia-chrome brick used at the lower part of the copper smelting converter is seriously damaged.
In addition, in the using and stacking processes, chromium ions in the magnesia-chrome bricks can generate hexavalent chromium with strong carcinogenic effect, and the use of a large amount of magnesia-chrome bricks inevitably causes serious environmental pollution and threatens the health of people and animals.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a magnesium oxide-forsterite-carbon composite material for the lower part of a copper smelting converter, which is environment-friendly, high in microporosity, good in thermal shock resistance and excellent in anti-corrosion performance of matte-slag penetration, and a preparation method thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: firstly, 35-55 wt% of fused magnesia particles, 10-30 wt% of forsterite particles, 6-16 wt% of light-burned magnesia fine powder, 5-15 wt% of pyrophyllite fine powder, 3-7 wt% of earthy graphite micro powder and 3-7 wt% of Si2N2The preparation method comprises the following steps of taking O/SiC/TiC/TiCN/C composite powder, 1-3 wt% of simple substance silicon fine powder, 2-5 wt% of titanium aluminum carbide fine powder and 2-5 wt% of manganese monoxide fine powder as raw materials, adding 2-5 wt% of zirconia sol and 3-5 wt% of cobalt modified phenolic resin as the raw materials, uniformly stirring, forming and drying. And then preserving heat for 2-8 hours under the conditions of carbon-buried atmosphere and 1200-1400 ℃ to obtain the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter.
SiO of the pyrophyllite fine powder2The content is more than 70 wt%, and the particle size is less than 75 μm.
The content of C in the earthy graphite micropowder is more than 80 wt%, and the particle size is less than 5 mu m.
Said Si2N2The preparation method of the O/SiC/TiC/TiCN/C composite powder comprises the following steps: mixing the pyrophyllite fine powder, the titanium oxide fine powder and the coke fine powder according to the mass ratio of (3-5) to 1: 1 to obtain a mixture; adding 8-10 wt% of phenolic resin into the mixture, and preparing spherical particles by using a granulator; putting the spherical particles into a sagger, then putting the sagger into an electric furnace, maintaining nitrogen atmosphere in the furnace, keeping the atmosphere pressure at 0.01-0.03 MPa and the temperature at 1350-1550 ℃, preserving the heat for 2-4 h, and naturally cooling to room temperature; crushing, and fine grinding to obtain Si powder with particle size less than 0.075mm2N2O/SiC/TiC/TiCN/C composite powder.
The MgO content of the fused magnesia particles is more than 97 wt%, and the particle size is 0.1-5 mm.
The content of MgO of the forsterite particles is more than 45 wt%, and the particle size is 0.1-3 mm.
The MgO content of the light-burned magnesite fine powder is more than 97 wt%, and the particle size is less than 45 mu m.
The Si content of the simple substance silicon fine powder is more than 97 wt%, and the particle size is less than 45 mu m.
Ti of the titanium aluminum carbide fine powder3AlC2The content is more than 97 wt%, and the particle size is less than 45 μm.
The MnO content of the manganese monoxide fine powder is more than 97 wt%, and the particle size is less than 45 mu m.
ZrO of the zirconia sol2The content is 20-40 wt%, and the particle size is 20-70 nm.
The Co content of the cobalt-modified phenolic resin is 0.08-0.6 wt%, and the carbon residue ratio is more than 40 wt%.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following positive effects:
the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter prepared by the invention is a non-chromium-containing material, does not pollute the environment, does not cause potential threats to the health of people and animals, and is environment-friendly.
In the sintering process, the activity of silicon oxide and aluminum oxide generated by decomposing the pyrophyllite fine powder is very high, the silicon oxide and the aluminum oxide can react with light-burned magnesite fine powder added into the material at a lower temperature to generate forsterite and spinel, and the manganese monoxide can be dissolved into lattices of the forsterite, the forsterite and the spinel in a solid manner to promote substance transmission and material densification. Under the carbon-buried atmosphere, the cobalt modified phenolic resin is cracked in situ to generate carbon nanotubes, and the silicon carbide whiskers and the silicon oxynitride whiskers can be generated through the interaction of simple substance silicon, nitrogen and carbon monoxide. The carbon nano-tube and the whiskers of different types generated by the reaction are distributed in the material matrix, so that the internal pores of the material can be effectively blocked, the apparent porosity and the pore size of the material are reduced, and the anti-matte copper-slag permeability of the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter is obviously improved.
Manganese monoxide added into the magnesia-forsterite-carbon composite material for the lower part of the copper smelting converter prepared by the invention is dissolved in the magnesite and the forsterite crystal lattices in a solid solution manner, so that the chemical stability of the magnesite and the forsterite in molten slag is favorably improved. In the erosion process, titanium aluminum carbide added into the material is oxidized, a compact aluminum titanate layer is formed on the surface of the material in situ, and both the formed aluminum titanate layer and the generated spinel can absorb FeO in slag, so that the viscosity of the slag is increased, and the slag penetration resistance of the magnesium oxide-forsterite-carbon composite material used at the lower part of the copper smelting converter is obviously improved.
The silicon carbide whiskers and the silicon oxynitride whiskers generated in the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter prepared by the method disclosed by the invention are very low in solubility in slag, and the viscosity of the molten slag is greatly improved after the high-melting-point non-oxides are dissolved in the molten slag in the erosion process, so that the infiltration erosion of the molten slag on the material is effectively slowed down. The earthy graphite and Si added in the material2N2The O/SiC/TiC/TiCN/C composite powder can effectively improve the contact angle between the material and the matte-slag, so that the material is not wetted by the matte-slag, and the matte-slag penetration and erosion resistance of the magnesium oxide-forsterite-carbon composite material used at the lower part of the copper smelting converter is obviously improved.
The magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter, which is prepared by the invention, is introduced with zirconia sol, and fine zirconia generated by decomposition in the heat treatment process is uniformly dispersed in a material matrix, so that the thermal shock resistance of the material is improved. The carbon nano tube, the silicon carbide whisker and the silicon oxynitride whisker generated by the reaction in the material are dispersed in the material, can generate energy dissipation mechanisms such as pulling-out, crack deflection and bridging, and the like, and play a role in strengthening and toughening the magnesium oxide-forsterite-carbon composite material used at the lower part of the copper smelting converter.
The magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter prepared by the invention has the apparent porosity of 7-13%, the average pore diameter of 0.5-3.0 mu m, the retention rate of the residual strength of the thermal shock resistance after water cooling for 5 times at 1100 ℃ of 86-96%, and the copper matte-slag infiltration erosion can be effectively resisted for 10000-12000 h.
Therefore, the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter, which is prepared by the invention, has the characteristics of environmental friendliness, high microporosity, good thermal shock resistance and excellent matte-slag penetration and erosion resistance
Detailed Description
The invention is further described with reference to specific embodiments, without limiting its scope:
in order to avoid repetition, the materials related to this specific embodiment are described in a unified manner as follows, and are not described in detail in the specific embodiment:
SiO of the pyrophyllite fine powder2The content is more than 70 wt%, and the particle size is less than 75 μm.
The content of C in the earthy graphite micropowder is more than 80 wt%, and the particle size is less than 5 mu m.
Said Si2N2The preparation method of the O/SiC/TiC/TiCN/C composite powder comprises the following steps: mixing the pyrophyllite fine powder, the titanium oxide fine powder and the coke fine powder according to the mass ratio of (3-5) to 1: 1 to obtain a mixture; adding 8-10 wt% of phenolic resin into the mixture, and preparing spherical particles by using a granulator; putting the spherical particles into a sagger, then putting the sagger into an electric furnace, maintaining nitrogen atmosphere in the furnace, keeping the atmosphere pressure at 0.01-0.03 MPa and the temperature at 1350-1550 ℃, preserving the heat for 2-4 h, and naturally cooling to room temperature; crushing, and fine grinding to obtain Si powder with particle size less than 0.075mm2N2O/SiC/TiC/TiCN/C composite powder.
The MgO content of the fused magnesia particles is more than 97 wt%, and the particle size is 0.1-5 mm.
The content of MgO of the forsterite particles is more than 45 wt%, and the particle size is 0.1-3 mm.
The MgO content of the light-burned magnesite fine powder is more than 97 wt%, and the particle size is less than 45 mu m.
The Si content of the simple substance silicon fine powder is more than 97 wt%, and the particle size is less than 45 mu m.
Ti of the titanium aluminum carbide fine powder3AlC2The content is more than 97 wt%, and the particle size is less than 45 μm.
The MnO content of the manganese monoxide fine powder is more than 97 wt%, and the particle size is less than 45 mu m.
ZrO of the zirconia sol2The content is 20-40 wt%, and the particle size is 20-70 nm.
The Co content of the cobalt-modified phenolic resin is 0.08-0.6 wt%, and the carbon residue ratio is more than 40 wt%.
Example 1
A magnesium oxide-forsterite-carbon composite material for the lower part of a copper smelting converter and a preparation method thereof. It is characterized in that
Firstly, 35-45 wt% of fused magnesia particles, 20-30 wt% of forsterite particles, 6-10 wt% of light-burned magnesia fine powder, 11-15 wt% of pyrophyllite fine powder, 3-5 wt% of earthy graphite micro powder and 5-7 wt% of Si2N2The preparation method comprises the following steps of taking O/SiC/TiC/TiCN/C composite powder, 1-3 wt% of simple substance silicon fine powder, 2-5 wt% of titanium aluminum carbide fine powder and 2-5 wt% of manganese monoxide fine powder as raw materials, adding 2-5 wt% of zirconia sol and 3-5 wt% of cobalt modified phenolic resin as the raw materials, uniformly stirring, forming and drying. And then preserving heat for 2-5 hours under the conditions of carbon-buried atmosphere and 1200-1250 ℃ to obtain the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter.
The magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter prepared in example 1: the apparent porosity is 7-10%; the average pore diameter is 0.5-1.5 μm; the retention rate of the residual strength of the thermal shock resistance at 1100 ℃ after water cooling for 5 times is 86-90%; can effectively resist the penetration and erosion of the slag for 10000-11500 h.
Example 2
A kind ofA magnesium oxide-forsterite-carbon composite material for the lower part of a copper smelting converter and a preparation method thereof. The method is characterized by comprising 38-48 wt% of fused magnesia particles, 17-27 wt% of forsterite particles, 8-12 wt% of light-burned magnesia fine powder, 9-13 wt% of pyrophyllite fine powder, 4-6 wt% of earthy graphite micro powder and 4-6 wt% of Si2N2The preparation method comprises the following steps of taking O/SiC/TiC/TiCN/C composite powder, 1-3 wt% of simple substance silicon fine powder, 2-5 wt% of titanium aluminum carbide fine powder and 2-5 wt% of manganese monoxide fine powder as raw materials, adding 2-5 wt% of zirconia sol and 3-5 wt% of cobalt modified phenolic resin as the raw materials, uniformly stirring, forming and drying. And then preserving the heat for 3-6 hours under the conditions of carbon-buried atmosphere and 1240-1290 ℃ to obtain the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter.
The magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter prepared in example 2: the apparent porosity is 8-11%; the average pore diameter is 1.1-2.1 μm; the retention rate of the residual strength of the thermal shock resistance at 1100 ℃ after water cooling for 5 times is 88-92%; can effectively resist penetration and erosion of the slag for 11400-11900 h.
Example 3:
a magnesium oxide-forsterite-carbon composite material for the lower part of a copper smelting converter and a preparation method thereof. The method is characterized by comprising 41-51 wt% of fused magnesia particles, 14-24 wt% of forsterite particles, 10-14 wt% of light-burned magnesia fine powder, 7-11 wt% of pyrophyllite fine powder, 5-7 wt% of earthy graphite micro powder and 3-5 wt% of Si2N2The preparation method comprises the following steps of taking O/SiC/TiC/TiCN/C composite powder, 1-3 wt% of simple substance silicon fine powder, 2-5 wt% of titanium aluminum carbide fine powder and 2-5 wt% of manganese monoxide fine powder as raw materials, adding 2-5 wt% of zirconia sol and 3-5 wt% of cobalt modified phenolic resin as the raw materials, uniformly stirring, forming and drying. And then preserving heat for 4-7 hours under the conditions of carbon-buried atmosphere and 1280-1330 ℃, thus obtaining the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter.
The magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter prepared in example 3: the apparent porosity is 9-12%; the average pore diameter is 1.7-2.7 μm; the retention rate of the residual strength of the thermal shock resistance at 1100 ℃ after water cooling for 5 times is 90-94%; can effectively resist the penetration erosion of the slag for 11500-12000 h.
Example 4
A magnesium oxide-forsterite-carbon composite material for the lower part of a copper smelting converter and a preparation method thereof. The method is characterized by comprising the following steps of firstly, 44-54 wt% of fused magnesia particles, 11-21 wt% of forsterite particles, 12-16 wt% of light-burned magnesia fine powder, 5-9 wt% of pyrophyllite fine powder, 3-5 wt% of earthy graphite micro powder and 5-7 wt% of Si2N2The preparation method comprises the following steps of taking O/SiC/TiC/TiCN/C composite powder, 1-3 wt% of simple substance silicon fine powder, 2-5 wt% of titanium aluminum carbide fine powder and 2-5 wt% of manganese monoxide fine powder as raw materials, adding 2-5 wt% of zirconia sol and 3-5 wt% of cobalt modified phenolic resin as the raw materials, uniformly stirring, forming and drying. And then preserving heat for 5-8 hours under the conditions of carbon-buried atmosphere and 1320-1370 ℃, thus obtaining the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter.
The magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter prepared in example 4: the apparent porosity is 10-13%; the average pore diameter is 2.0-3.0 μm; the retention rate of the residual strength of the thermal shock resistance at 1100 ℃ after water cooling for 5 times is 92-96%; can effectively resist the penetration and erosion of the slag for 11300-11800 hours.
Example 5
A magnesium oxide-forsterite-carbon composite material for the lower part of a copper smelting converter and a preparation method thereof. The method is characterized by comprising 45-55 wt% of fused magnesia particles, 10-20 wt% of forsterite particles, 9-13 wt% of light-burned magnesia fine powder, 8-12 wt% of pyrophyllite fine powder, 4-6 wt% of earthy graphite micro powder and 4-6 wt% of Si2N2The preparation method comprises the following steps of taking O/SiC/TiC/TiCN/C composite powder, 1-3 wt% of simple substance silicon fine powder, 2-5 wt% of titanium aluminum carbide fine powder and 2-5 wt% of manganese monoxide fine powder as raw materials, adding 2-5 wt% of zirconia sol and 3-5 wt% of cobalt modified phenolic resin as the raw materials, uniformly stirring, forming and drying. And then preserving the heat for 4-7 hours under the conditions of carbon-buried atmosphere and 1350-1400 ℃ to obtain the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter.
The magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter prepared in example 5: the apparent porosity is 8-11%; the average pore diameter is 1.3-2.3 μm; the retention rate of the residual strength of the thermal shock resistance at 1100 ℃ after water cooling for 5 times is 90-94%; can effectively resist the infiltration and erosion of the slag for 11200-11700 h.
Compared with the prior art, the specific implementation mode has the following positive effects:
the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter prepared by the specific embodiment is a chromium-free material, does not pollute the environment, does not cause potential threats to the health of people and animals, and is environment-friendly.
In the sintering process of the specific embodiment, the activity of silicon oxide and aluminum oxide generated by decomposing the pyrophyllite fine powder is very high, the silicon oxide and the aluminum oxide can react with light-burned magnesite fine powder added into the material at a lower temperature to generate forsterite and spinel, and the manganese monoxide can be dissolved into lattices of the forsterite, the forsterite and the spinel in a solid manner to promote material transmission and material densification. Under the carbon-buried atmosphere, the cobalt modified phenolic resin is cracked in situ to generate carbon nanotubes, and the silicon carbide whiskers and the silicon oxynitride whiskers can be generated through the interaction of simple substance silicon, nitrogen and carbon monoxide. The carbon nano-tube and the whiskers of different types generated by the reaction are distributed in the material matrix, so that the internal pores of the material can be effectively blocked, the apparent porosity and the pore size of the material are reduced, and the anti-matte copper-slag permeability of the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter is obviously improved.
The manganese monoxide added into the magnesia-forsterite-carbon composite material for the lower part of the copper smelting converter prepared by the specific embodiment is dissolved in the magnesite and the forsterite crystal lattices in a solid manner, so that the chemical stability of the magnesite and the forsterite in the molten slag is improved. In the erosion process, titanium aluminum carbide added into the material is oxidized, a compact aluminum titanate layer is formed on the surface of the material in situ, and both the formed aluminum titanate layer and the generated spinel can absorb FeO in slag, so that the viscosity of the slag is increased, and the slag penetration resistance of the magnesium oxide-forsterite-carbon composite material used at the lower part of the copper smelting converter is obviously improved.
Magnesium oxide for the lower part of a copper smelting converter prepared by the specific embodimentThe solubility of the silicon carbide whiskers and the silicon oxynitride whiskers generated in the forsterite-carbon composite material in slag is very low, the viscosity of the slag is greatly improved after the high-melting-point non-oxides are dissolved in the slag in the erosion process, and the infiltration erosion of the slag on the material is effectively slowed down. The earthy graphite and Si added in the material2N2The O/SiC/TiC/TiCN/C composite powder can effectively improve the contact angle between the material and the matte-slag, so that the material is not wetted by the matte-slag, and the matte-slag penetration and erosion resistance of the magnesium oxide-forsterite-carbon composite material used at the lower part of the copper smelting converter is obviously improved.
The magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter prepared by the specific embodiment can be decomposed to generate fine zirconium oxide which is uniformly dispersed in a material matrix in the process of introducing zirconium oxide sol into the heat treatment process, so that the thermal shock resistance of the material is improved. The carbon nano tube, the silicon carbide whisker and the silicon oxynitride whisker generated by the reaction in the material are dispersed in the material, can generate energy dissipation mechanisms such as pulling-out, crack deflection and bridging, and the like, and play a role in strengthening and toughening the magnesium oxide-forsterite-carbon composite material used at the lower part of the copper smelting converter.
The magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter prepared by the specific embodiment: the apparent porosity is 7-13%; the average pore diameter is 0.5-3.0 μm; the retention rate of the residual strength of the thermal shock resistance at 1100 ℃ after water cooling for 5 times is 86-96%; can effectively resist the osmotic corrosion of the matte and the molten slag for 10000-12000 h.
Therefore, the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter prepared by the specific embodiment has the characteristics of environmental friendliness, high microporosity, good thermal shock resistance and excellent matte-slag penetration erosion resistance.

Claims (10)

1. A preparation method of a magnesium oxide-forsterite-carbon composite material for the lower part of a copper smelting converter is characterized by comprising 35-55 wt% of fused magnesia particles, 10-30 wt% of forsterite particles, 6-16 wt% of light-burned magnesia fine powder, 5-15 wt% of pyrophyllite fine powder, 3-7 wt% of earthy graphite micro powder and 3-7 wt% of Si2N2O/Taking SiC/TiC/TiCN/C composite powder, 1-3 wt% of simple substance silicon fine powder, 2-5 wt% of titanium aluminum carbide fine powder and 2-5 wt% of manganese monoxide fine powder as raw materials, adding 2-5 wt% of zirconia sol and 3-5 wt% of cobalt modified phenolic resin as the raw materials, uniformly stirring, forming and drying; then preserving heat for 2-8 hours under the conditions of carbon-buried atmosphere and 1200-1400 ℃ to obtain a magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter;
SiO of the pyrophyllite fine powder2The content is more than 70 wt%, and the particle size is less than 75 μm;
the content of C in the earthy graphite micropowder is more than 80 wt%, and the particle size is less than 5 mu m;
said Si2N2The preparation method of the O/SiC/TiC/TiCN/C composite powder comprises the following steps: mixing the pyrophyllite fine powder, the titanium oxide fine powder and the coke fine powder according to the mass ratio of (3-5) to 1: 1 to obtain a mixture; adding 8-10 wt% of phenolic resin into the mixture, and preparing spherical particles by using a granulator; putting the spherical particles into a sagger, then putting the sagger into an electric furnace, maintaining nitrogen atmosphere in the furnace, keeping the atmosphere pressure at 0.01-0.03 MPa and the temperature at 1350-1550 ℃, preserving the heat for 2-4 h, and naturally cooling to room temperature; crushing, and fine grinding to obtain Si powder with particle size less than 0.075mm2N2O/SiC/TiC/TiCN/C composite powder.
2. The method for preparing the magnesia-forsterite-carbon composite material for the lower part of the copper smelting converter according to claim 1, characterized in that the MgO content of the fused magnesia particles is > 97 wt%, and the particle size is 0.1-5 mm.
3. The method for preparing the magnesium oxide-forsterite-carbon composite material for the lower part of the copper-smelting converter according to claim 1, characterized in that the forsterite particles have an MgO content > 45 wt% and a particle size of 0.1-3 mm.
4. The preparation method of the magnesia-forsterite-carbon composite material for the lower part of the copper-smelting converter according to claim 1, characterized in that the MgO content of the light-burned magnesite dust is larger than 97 wt%, and the particle size is smaller than 45 μm.
5. The preparation method of the magnesium oxide-forsterite-carbon composite material for the lower part of the copper-smelting converter according to claim 1, characterized in that the Si content of the elemental silicon fine powder is larger than 97 wt%, and the particle size is smaller than 45 μm.
6. The method for producing a magnesium oxide-forsterite-carbon composite material for use in the lower part of a copper-smelting converter according to claim 1, wherein the titanium of the titanium-aluminum carbide fine powder is Ti3AlC2The content is more than 97 wt%, and the particle size is less than 45 μm.
7. The preparation method of the magnesium oxide-forsterite-carbon composite material for the lower part of the copper-smelting converter according to claim 1, characterized in that the MnO content of the manganese monoxide fine powder is more than 97 wt%, and the particle size is less than 45 μm.
8. The method for producing a magnesia-forsterite-carbon composite material for use in the lower part of a copper-smelting converter according to claim 1, characterized in that ZrO of the zirconia sol2The content is 20-40 wt%, and the particle size is 20-70 nm.
9. The preparation method of the magnesium oxide-forsterite-carbon composite material for the lower part of the copper smelting converter according to claim 1, wherein the Co content of the cobalt-modified phenolic resin is 0.08-0.6 wt%, and the carbon residue ratio > 40 wt%.
10. A magnesium oxide-forsterite-carbon composite material for the lower part of a copper-smelting converter, characterized in that the magnesium oxide-forsterite-carbon composite material for the lower part of the copper-smelting converter is the magnesium oxide-forsterite-carbon composite material for the lower part of the copper-smelting converter prepared by the method for preparing the magnesium oxide-forsterite-carbon composite material for the lower part of the copper-smelting converter according to any one of claims 1 to 9.
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CN114620997B (en) * 2022-04-14 2023-03-24 郑州振东科技有限公司 Method for improving performance of low-carbon magnesia carbon brick
CN115259839B (en) * 2022-07-25 2023-03-21 中冶武汉冶金建筑研究院有限公司 Integral refractory castable for preheating section side wall of belt type roasting machine and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1944346A (en) * 2006-10-19 2007-04-11 武汉科技大学 Titanium nitride magnesia carbon brick containing carbon and its preparing method
CN101148362A (en) * 2007-09-03 2008-03-26 武汉科技大学 Forsterite-carbon refractory brick and preparation method thereof
CN102584282A (en) * 2012-01-19 2012-07-18 北京炜润达冶金材料有限公司 Thermal-state mending material taking forsterite as raw material for converters and preparation method thereof
CN105777151A (en) * 2016-02-23 2016-07-20 鞍山市奥鞍耐火材料有限责任公司 Magnesium aluminate spinel refractory material containing manganese and preparing method thereof
CN106631053A (en) * 2016-09-29 2017-05-10 武汉科技大学 Refractory material for steel tapping hole of converter and preparation method for refractory material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1944346A (en) * 2006-10-19 2007-04-11 武汉科技大学 Titanium nitride magnesia carbon brick containing carbon and its preparing method
CN101148362A (en) * 2007-09-03 2008-03-26 武汉科技大学 Forsterite-carbon refractory brick and preparation method thereof
CN102584282A (en) * 2012-01-19 2012-07-18 北京炜润达冶金材料有限公司 Thermal-state mending material taking forsterite as raw material for converters and preparation method thereof
CN105777151A (en) * 2016-02-23 2016-07-20 鞍山市奥鞍耐火材料有限责任公司 Magnesium aluminate spinel refractory material containing manganese and preparing method thereof
CN106631053A (en) * 2016-09-29 2017-05-10 武汉科技大学 Refractory material for steel tapping hole of converter and preparation method for refractory material

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"氧化钴溶胶复合酚醛树脂的热解碳结构变化"，赵雷，《功能高分子学报》，第25卷，第1期，第58-61页;赵雷;《功能高分子学报》;20130331;第25卷(第1期);正文第58页第1段，59页"实验部分" *
"熔盐介质中制备Ti（C，N）及不同添加剂对炭砖性能的影响"，陈希来，《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》，第 02 期，第B023-7页;陈希来;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》;20070815(第 02 期);正文第47页第1段，正文第44页"4.1实验部分" *

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