Method and device for preparing glass slag by rapidly quenching high-titanium slag

By heating and insulation of protective gas in a high-temperature quenching furnace, and using the free fall speed of the crucible to quickly quench in the ice-water mixture or inert gas, the problem of crystallization tendency during the cooling process of high titanium slag is solved, efficient rapid quenching is achieved, and the integrity of the high-temperature melt structure is maintained.

CN120157342APending Publication Date: 2025-06-17NORTHEASTERN UNIV CHINA +1
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Patent Information

Application Number
CN202510312732.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2025-06-17

AI Technical Summary

Technical Problem

There is a significant tendency for high titanium slag to crystallize during cooling. The existing quenching technology is difficult to achieve uniform and rapid cooling of the slag in a very short time, resulting in uneven microstructure, affecting the characterization of its physical and chemical properties and subsequent applications.

Method used

A method and device for rapid quenching of high titanium slag is used to prepare glass slag. By heating and insulation of protective gas in a high-temperature quenching furnace, and then rapidly quenching in an ice-water mixture or an inert gas using the free fall speed of the crucible, significantly increasing the cooling rate.

Benefits of technology

The rapid quenching of high-titanium slag is achieved, the crystallization behavior is suppressed, the integrity of the high-temperature melt structure is maintained, the cooling efficiency is significantly improved, and high-quality glass slag samples are provided for subsequent detection and analysis.

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Abstract

The invention discloses a method and a device for preparing glass slag by rapidly quenching high-titanium slag, and belongs to the technical field of slag glass. According to the method and the device for preparing the glass slag through rapid quenching of the high-titanium slag, the problems that traditional quenching equipment is low in efficiency and single in function are solved through rapid release of the movable sliding cover and dual-purpose design of one furnace, and rapid quenching of the high-titanium slag by utilizing the free falling speed of an object is achieved. In the rapid quenching process, quenching can be completed by means of a free falling body of a heavy object, the cooling time is shortened, liquid slag in a high-temperature state can be rapidly quenched, the cooling rate of the titanium slag is remarkably increased, and it is ensured that the titanium slag is cooled before crystallization and is kept consistent with a high-temperature molten structure. The device has the advantages of being convenient to operate, compact in structure, wide in application range and the like, meanwhile, the method provided by the invention has the characteristics of being simple in process and easy to operate, the prepared glass slag can keep the structure in a high-temperature state, and subsequent detection and analysis are facilitated.
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Description

Technical Field

[0001] The present invention belongs to the technical field of slag glass, and particularly relates to a method and device for rapidly quenching high-titanium molten slag to prepare glassy slag. Background Art

[0002] Vanadium-titanium magnetite is a complex associated mineral mainly composed of iron, vanadium, and titanium, accompanied by various valuable elements. With high contents of valuable elements, it is an important industrial mineral raw material with extremely high development and comprehensive utilization value. China has rich reserves of vanadium-titanium magnetite, with the proven reserves of about 10 billion tons, mainly distributed in the Panxi region, showing broad prospects for development and utilization. In recent years, the global demand for vanadium and titanium products has been increasing continuously. Among them, vanadium products are mainly used in the steel industry and energy storage batteries, while titanium materials are widely used in fields such as chemical industry, aerospace, electric power, and light industry.

[0003] High-titanium molten slag is a product after the smelting of vanadium-titanium magnetite. It mainly consists of titanium oxides (TiO2) and contains various oxides such as CaO, SiO2, MgO, and Al2O3, and has important research value in the fields of metallurgy, materials science, and industrial solid waste resource utilization. However, high-titanium molten slag has a significant crystallization tendency during the cooling process. Conventional cooling methods (such as natural cooling or slow water quenching) are prone to the precipitation of crystal phases in the molten slag due to insufficient cooling rate, resulting in non-uniformity of the microstructure. This crystallization phenomenon makes it difficult for the molten slag to maintain the amorphous or glassy phase structure at high temperature, seriously affecting the accurate characterization of its physical and chemical properties and subsequent applications.

[0004] Although existing quenching technologies can partially inhibit crystal growth, they still have obvious deficiencies for high-titanium molten slag systems with high crystallization tendency. For example, due to the limited heat conduction efficiency of the traditional water quenching method, it is difficult to achieve uniform and rapid cooling of the molten slag in an extremely short time; while inert gas quenching is limited by the heat capacity of the medium and the contact efficiency, and cannot meet the ultra-high-speed temperature gradient required for high-titanium slag. In addition, most existing devices have problems such as single function, complex operation, and insufficient flexibility in quenching rate and medium switching, and are difficult to meet the rapid quenching requirements of high-titanium molten slag with different compositions.

[0005] Therefore, developing an efficient and controllable rapid quenching method and device to inhibit the crystallization behavior of high-titanium molten slag and ensure the complete retention of its high-temperature molten structure has become an urgent technical problem in this field. This has important scientific significance and industrial value for in-depth study of the microstructure evolution mechanism of high-titanium molten slag, optimization of its properties and applications. Summary of the Invention

[0006] In order to improve the quenching rate of high-titanium molten slag and keep its microstructure at high temperature for subsequent research, the present invention provides a method and device for rapidly quenching high-titanium molten slag to prepare glassy slag.

[0007] The present invention is achieved through the following technical solutions:

[0008] A method for rapidly quenching high-titanium slag to prepare glassy slag, comprising the following steps:

[0009] Step 1, prepare a high-titanium slag system according to a set ratio and mix it evenly;

[0010] Step 2, load the mixed high-titanium slag system into a crucible and suspend it in a high-temperature quenching furnace with a metal wire.

[0011] Step 3, introduce a protective gas, and after rising to the target temperature, hold for a period of time to melt and clarify the slag sample;

[0012] Step 4, slide the bottom cover of the furnace, open the fixing screws on the furnace top, the metal wire is loosened, and the metal wire and the crucible fall into the quenching medium container; the quenching medium container contains ice-water mixture or inert gas, wherein the temperature of the inert gas is -196°C.

[0013] Step 5, quench the high-titanium slag, the slag drops to room temperature within 2 s, and after drying, it is sealed and stored for standby.

[0014] Preferably, in Step 1, the high-titanium slag system is prepared from analytical pure reagents, and its composition is oxides, including TiO2, CaO, SiO2, MgO, Al2O3, and the purity of the oxides is greater than 98%.

[0015] Preferably, the crucible material in Step 2 is one of corundum, graphite, and molybdenum.

[0016] Preferably, the metal wire material in Step 2 is molybdenum or tungsten, and the size is 1 mm - 4 mm.

[0017] Preferably, the protective gas in Step 3 is argon, with a purity ≥ 99.999%, and the holding time ≥ 1 h.

[0018] Preferably, the target temperature in Step 3 is determined according to different high-titanium slag systems, and is specifically determined jointly by using FactSage thermodynamic software and phase diagrams;

[0019] Preferably, the inert gas used in Step 4 is one of argon and nitrogen.

[0020] A device for rapidly quenching high-titanium slag to prepare glassy slag, used to implement the above method, comprising a high-temperature quenching furnace, a suspension system, a gas supply system, a computer temperature control system, and a rapid quenching system;

[0021] Among them, the suspension system includes fixing screws, metal wires, and crucibles; the computer temperature control system includes MoSi2 heating rods, B-type thermocouples, and S-type thermocouples; the rapid quenching system is a quenching medium container;

[0022] The high-temperature quenching furnace is internally equipped with a computer temperature control system. The suspension system is fixed in the high-temperature quenching furnace through metal wires, and the rapid quenching and cooling system is located below the high-temperature quenching furnace.

[0023] Small holes are provided on the side wall of the crucible. One end of the metal wire is fixed to the fixing screw, and the other end passes through the small holes to suspend the crucible.

[0024] A sliding cover is arranged at the bottom of the high-temperature quenching furnace. The sliding cover is connected to the bottom of the high-temperature quenching furnace through a sliding track. The opening action of the sliding cover is linked with the release of the fixing screw.

[0025] The high-temperature quenching furnace is equipped with a protective gas supply system.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. The present invention provides a method for rapidly quenching and cooling high-titanium molten slag to prepare glassy slag, which can rapidly quench and cool the liquid molten slag in a high-temperature state, significantly improve the cooling rate of titanium slag, ensure that the titanium slag is cooled before crystallization, and keep it consistent with the high-temperature molten structure.

[0028] 2. The present invention provides a device for rapidly quenching and cooling high-titanium molten slag to prepare glassy slag. Through the rapid release of the movable sliding cover and the design of dual-purpose furnace, it solves the problems of low efficiency and single function of traditional quenching and cooling equipment, and realizes the rapid quenching and cooling of high-titanium molten slag by using the speed of free fall of an object. During the rapid quenching and cooling process, the quenching can be completed by means of the free fall of a heavy object, shortening the cooling time and obtaining a large temperature gradient.

[0029] 3. The method of the present invention has the characteristics of simple process and easy operation. The prepared glassy slag can maintain the structure in a high-temperature state, which is convenient for subsequent detection and analysis.

[0030] 4. The device of the present invention has many advantages such as convenient operation, compact structure, and wide application range. It significantly improves the quenching and cooling efficiency of high-titanium molten slag, provides efficient and flexible technical support for the microscopic structure research of high-titanium molten slag. At the same time, the quenching medium container supports rapid switching to meet the needs of different experimental scenarios, and the operation is convenient; the integrated design reduces the floor area, is suitable for laboratory and small-scale industrial production scenarios, and has important industrial application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a device diagram for rapidly quenching and cooling high-titanium vanadium-titanium magnetite molten slag of the present invention;

[0032] Figure 2 It is a flow chart for rapidly quenching and cooling high-titanium vanadium-titanium magnetite molten slag of the present invention;

[0033] Among them, 1 - fixing screw, 2 - wire, 3 - MoSi2 heating rod, 4 - Type B thermocouple, 5 - crucible, 6 - Type S thermocouple, 7 - air inlet, 8 - movable sliding cover, 9 - quenching medium container. Detailed implementation mode

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below through specific implementation modes.

[0035] The present invention provides a method for rapidly quenching high-titanium molten slag to prepare glassy slag. The process flow is as Figure 2 shown and includes the following steps:

[0036] Step 1: Prepare a high-titanium slag system with analytical pure oxides as the composition components including TiO2, CaO, SiO2, MgO, and Al2O3 (with a purity of more than 98% for all), and mix them evenly.

[0037] Step 2: Load the evenly mixed high-titanium slag system into a crucible and suspend it in a high-temperature quenching furnace with tungsten wire or molybdenum wire; among them, the crucible material is one of corundum, graphite, and molybdenum.

[0038] Step 3: Pass in protective gas argon with a purity ≥ 99.999%. After rising to the target temperature, keep it warm for no less than 1 h to melt the slag sample clearly.

[0039] Step 4: Slide the bottom sliding cover of the furnace, open the fixing screw on the furnace top, the wire is loosened, and the wire falls into the quenching medium container with the crucible; the quenching medium container contains ice-water mixture or inert gas, among which the inert gas is argon or nitrogen, and the temperature is -196 °C.

[0040] Step 5: Quench the high-titanium molten slag. The molten slag drops to room temperature within 2 s. After it is dried, it is sealed and stored for standby.

[0041] In the present invention, the target temperature described in Step 3 is determined according to different high-titanium slag systems, and is specifically determined jointly by using FactSage thermodynamic software and phase diagrams.

[0042] The present invention provides a device for rapidly quenching high-titanium molten slag to prepare glassy slag, as Figure 1 shown, for implementing the above method, and includes a high-temperature quenching furnace, a suspension system, a gas supply system, a computer temperature control system, and a rapid quenching system; among them, the suspension system includes a fixing screw 1, a wire 2, and a crucible 5; the computer temperature control system includes a MoSi2 heating rod 3, a Type B thermocouple 4, and a Type S thermocouple 6; the rapid quenching system is a quenching medium container 9. The high-temperature quenching furnace is internally provided with a computer temperature control system. The suspension system is fixed in the high-temperature quenching furnace through a wire 2, and the rapid quenching system is located below the high-temperature quenching furnace.

[0043] The side wall of the crucible 5 is provided with small holes. One end of the metal wire 2 is fixed to the fixing screw 1, and the other end passes through the small holes to hang the crucible 5; a sliding cover is arranged at the bottom of the high-temperature quenching furnace, and the sliding cover is connected to the bottom of the high-temperature quenching furnace through a sliding track. The opening action of the sliding cover is linked with the release of the fixing screw 1; the high-temperature quenching furnace is equipped with a protective gas supply system.

[0044] Example 1:

[0045] This example provides a method for rapidly quenching high-titanium molten slag to prepare glassy slag. The chemical analysis of each material is shown in Table 1. The specific steps include:

[0046] Table 1 Chemical compositions of each material (mass fraction, %)

[0047]

[0048] Step 1: Weigh 5 g of reagents according to the ratio shown in Table 1 using a precision balance, put them into a material bag and mix evenly to obtain high-titanium slag;

[0049] Step 2: Load the mixed high-titanium slag into the molybdenum crucible 5, pass a molybdenum wire with a diameter of 1 mm to 4 mm through the crucible 5 and hang it in the high-temperature quenching furnace;

[0050] Step 2.1: Analyze the melting temperature of the above high-titanium slag using FactSage thermodynamic software to determine the target temperature as 1500 °C;

[0051] Step 2.2: The high-temperature quenching furnace is controlled by a computer system, which can achieve multi-stage temperature control. The heating rate is 10 °C / min, and the target melting temperature is 1500 °C;

[0052] Step 3: Pass argon with a purity of ≥99.999% into the furnace at a gas flow rate of 0.8 L / min, heat up to 1500 °C and keep it warm for 1 h to melt the slag sample;

[0053] Step 4: Slide the bottom sliding cover 8 of the furnace, open the fixing screw 1 at the top of the furnace, the molybdenum wire is loosened, and the molybdenum wire and the crucible 5 quickly fall into the quenching medium container 9 below;

[0054] Step 4.1: The volume of the quenching medium container 9 is 5 L, and it is filled with an ice-water mixture;

[0055] Step 5: The high-titanium molten slag is rapidly quenched in the ice-water mixture, and it drops to room temperature in 2 s. After drying, it is sealed and stored for subsequent testing;

[0056] Step 5.1: The drying equipment is a drying oven, the drying temperature is 200 °C, and the drying time is 1 h;

[0057] Step 5.2: Analyze the water-quenched slag by X-ray diffraction. A diffuse scattering peak appears at 2θ = 30° in the obtained spectrum, which is a typical characteristic of the glass phase, indicating that the quenched slag maintains the microstructure state of the molten slag at high temperature.

[0058] This embodiment provides a device for rapidly quenching high-titanium molten slag to prepare glassy slag, as Figure 1 shown, for implementing the method, including a high-temperature quenching furnace, a suspension system, a gas supply system, a computer temperature control system, and a rapid quenching system; wherein, the suspension system includes a fixing screw 1, a metal wire 2, and a crucible 5; the computer temperature control system includes a MoSi2 heating rod 3, a B-type thermocouple 4, and an S-type thermocouple 6; the rapid quenching system is a quenching medium container 9. The high-temperature quenching furnace is internally provided with a computer temperature control system. The suspension system is fixed in the high-temperature quenching furnace through the metal wire 2, and the rapid quenching system is located below the high-temperature quenching furnace.

[0059] The side wall of the crucible 5 is provided with a small hole. One end of the metal wire 2 is fixed to the fixing screw 1, and the other end passes through the small hole to suspend the crucible 5; a sliding cover is arranged at the bottom of the high-temperature quenching furnace, and the sliding cover is connected to the bottom of the high-temperature quenching furnace through a sliding track. The opening action of the sliding cover is linked with the release of the fixing screw 1; the high-temperature quenching furnace is equipped with a protective gas supply system, wherein the metal wire 2 is a molybdenum wire.

[0060] Example 2:

[0061] The device provided in this embodiment is the same as that in Example 1, except that the metal wire is a tungsten wire.

[0062] The chemical analysis of each material involved in the method is shown in Table 2, and the specific steps include:

[0063] Table 2 Chemical compositions of each material (mass fraction, %)

[0064]

[0065] Step 1: Weigh 6 g of reagents according to the ratio shown in Table 2 using a precision balance, put them into a material bag and mix evenly to obtain high-titanium slag;

[0066] Step 2: Put the uniformly mixed high-titanium slag into a corundum crucible 5, pass the tungsten wire 2 through the crucible 5 and suspend it in the high-temperature quenching furnace;

[0067] Step 2.1: Analyze the melting temperature of the above high-titanium slag using FactSage thermodynamic software to determine the target temperature as 1520 °C;

[0068] Step 2.2: The high-temperature quenching furnace is controlled by a computer system, which can achieve multi-stage temperature control. The heating rate is 10 °C / min, and the target melting temperature is 1520 °C;

[0069] Step 3: Introduce argon with a purity of ≥99.999% at a gas flow rate of 1 L / min, heat up to 1520 °C, and keep it for 1.5 h to melt and clear the slag sample;

[0070] Step 4: Slide the bottom cover 8 of the furnace, open the fixing screw 1 at the top of the furnace, the tungsten wire 2 is loosened, and the tungsten wire 2 quickly drops into the quenching medium container 9 below along with the crucible 5;

[0071] Step 4.1: The volume of the quenching medium container 9 is 5 L, and it is filled with ice-water mixture;

[0072] Step 5: The high-titanium molten slag is quickly quenched in the ice-water mixture, cooled to room temperature in 2 s, and sealed for storage after drying for subsequent testing;

[0073] Step 5.1: The drying equipment is an oven, the drying temperature is 150 °C, and the drying time is 2 h;

[0074] Step 5.2: Analyze the water-quenched slag by X-ray diffraction. A diffuse scattering peak appears at 2θ = 32° in the obtained spectrum, which belongs to the typical characteristics of the glass phase, indicating that the quenched slag maintains the microstructure state of the molten slag at high temperature.

[0075] Example 3:

[0076] The device provided in this example is the same as that in Example 1, except that in this example, the quenching medium in the quenching medium container is liquid nitrogen at -196 °C.

[0077] The chemical analysis of each material involved in the method is shown in Table 3, and the specific steps include:

[0078] Table 3 Chemical compositions of each material (mass fraction, %)

[0079]

[0080] Step 1: Use a precision balance to weigh 10 g of reagents according to the ratio shown in Table 3, put them into a material bag and mix evenly to obtain high-titanium slag;

[0081] Step 2: Put the mixed high-titanium slag into the graphite crucible 5, pass the molybdenum wire through the crucible 5 and hang it in the high-temperature quenching furnace;

[0082] Step 2.1: Use FactSage thermodynamic software to analyze the melting temperature of the above high-titanium slag and determine the target temperature to be 1520 °C;

[0083] Step 2.2: The high-temperature quenching furnace is controlled by a computer system, which can achieve multi-stage temperature control, the heating rate is 10 °C / min, and the target melting temperature is 1520 °C;

[0084] Step 3: Introduce argon with a purity of ≥99.999% at a gas flow rate of 1 L / min, heat up to 1520 °C, and hold for 2 h to melt and clarify the slag sample;

[0085] Step 4: Slide the bottom cover 8 of the furnace, open the fixing screw 1 at the furnace top, the molybdenum wire is loosened, and the molybdenum wire quickly drops into the quenching medium container 9 along with the crucible 5;

[0086] Step 5: Rapidly quench the high-titanium molten slag with an inert gas, cool it to room temperature in 2 s, and after drying, seal it for subsequent testing.

[0087] Step 5.1: Immediately quench the crucible 5 with nitrogen after it drops.

[0088] Step 5.2: The drying equipment is a drying oven, the drying temperature is 100 °C, and the drying time is 3 h;

[0089] Step 5.3: Analyze the water-quenched slag by X-ray diffraction. A diffuse scattering peak appears at 2θ = 33° in the obtained spectrum, which belongs to the typical characteristics of the glass phase, indicating that the quenched slag maintains the microscopic structure state of the molten slag at high temperature.

[0090] Example 4:

[0091] The device provided in this example is the same as that in Example 1, except that the metal wire is a tungsten wire.

[0092] The chemical analysis of each material involved in the method of this example is shown in Table 4, and the specific steps include:

[0093] Table 4 Chemical compositions of each material (mass fraction, %)

[0094]

[0095] Step 1: Use an analytical balance to weigh 8 g of reagents according to the ratio shown in Table 4, put them into a material bag and mix evenly to obtain high-titanium slag;

[0096] Step 2: Put the mixed high-titanium slag into the molybdenum crucible 5, pass the tungsten wire through the crucible 5 and suspend it in the high-temperature quenching furnace;

[0097] Sub-step 2.1: Analyze the melting temperature of the above high-titanium slag using FactSage thermodynamic software to determine the target temperature as 1500 °C;

[0098] Sub-step 2.2: The high-temperature quenching furnace is controlled by a computer system, which can achieve multi-stage temperature control, the heating rate is 10 °C / min, and the target melting temperature is 1500 °C;

[0099] Step 3: Introduce argon with a purity of ≥99.999% at a gas flow rate of 1 L / min, heat up to 1500 °C, and hold for 2 h to melt and clear the slag sample;

[0100] Step 4: Slide the bottom cover 8 of the furnace, open the fixing screw 1 on the furnace top, the tungsten wire is loosened, and the tungsten wire quickly drops into the quenching medium container 9 below along with the crucible 5.

[0101] Sub-step 4.1: The volume of the quenching medium container 9 is 5 L, and it is filled with an ice-water mixture;

[0102] Step 5: The high-titanium slag is rapidly quenched in the ice-water mixture, cooled to room temperature in 2 s, and after drying, it is sealed for subsequent testing.

[0103] Sub-step 5.1: The drying equipment is a drying oven, the drying temperature is 100 °C, and the drying time is 3 h;

[0104] Sub-step 5.2: Analyze the water-quenched slag by X-ray diffraction. A diffuse scattering peak appears at 2θ = 28° in the obtained spectrum, which belongs to the typical characteristics of the glass phase, indicating that the quenched slag maintains the microstructure state of the molten slag at high temperature.

[0105] Example 5:

[0106] The device provided in this example is the same as that in Example 1. The chemical analysis of each material involved in the method is shown in Table 5. The specific steps include:

[0107] Table 5 Chemical composition of each material (mass fraction, %)

[0108]

[0109] Step 1: Use an analytical balance to weigh 10 g of reagents according to the ratio shown in Table 5, put them into a material bag and mix evenly to obtain high-titanium slag;

[0110] Step 2: Load the mixed high-titanium slag into the corundum crucible 5, pass the molybdenum wire 2 through the crucible 5 and suspend it in the high-temperature quenching furnace;

[0111] Sub-step 2.1: Use FactSage thermodynamic software to analyze the melting temperature of the above high-titanium slag and determine the target temperature to be 1550 °C;

[0112] Sub-step 2.2: The high-temperature quenching furnace is controlled by a computer system, which can achieve multi-stage temperature control, the heating rate is 10 °C / min, and the target melting temperature is 1550 °C;

[0113] Step 3: Introduce argon with a purity of ≥99.999% at a gas flow rate of 1 L / min, heat up to 1550 °C, and hold for 2 h to melt and clear the slag sample;

[0114] Step 4: Slide the bottom cover 8 of the furnace, open the fixing screws 1 on the furnace top, the molybdenum wire is loosened, and the molybdenum wire quickly drops into the quenching medium container 9 along with the crucible 5.

[0115] Step 5: Rapidly quench the high-titanium molten slag with an inert gas, cool it to room temperature in 2 s, and after drying, seal it for subsequent detection.

[0116] Sub-step 5.1: Immediately quench the crucible 5 with argon after it drops.

[0117] Sub-step 5.2: The drying equipment is a drying oven, the drying temperature is 200 °C, and the drying time is 1 h.

[0118] Sub-step 5.3: Analyze the water-quenched slag by X-ray diffraction. A diffuse scattering peak appears at 2θ = 35° in the obtained spectrum line, which belongs to the typical characteristics of the glass phase, indicating that the quenched slag maintains the microstructure state of the molten slag at high temperature.

[0119] Therefore, in view of the problem that high-titanium slag is prone to crystallization as the temperature decreases and it is difficult to obtain an amorphous state by the traditional water quenching method, the present invention proposes a method and device for rapidly quenching high-titanium molten slag to prepare glassy slag. It has been verified that the present invention adopts a special heating and quenching device and uses the speed of free fall of an object for rapid quenching, which inhibits the precipitation of titanium-containing phases in the high-titanium molten slag and successfully prepares glassy-phase titanium slag, providing an effective reference process for improving the cooling efficiency of titanium-containing slag and enriching the research on the microstructure of high-titanium molten slag.

[0120] As described above, in the specification, the present invention has been described in detail with general descriptions and specific implementation examples. It is not intended to limit the present invention in other forms. Any changes, modifications, substitutions, and combinations made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A method for preparing glass slag by rapid quenching of high-titanium molten slag, characterized in that: The following steps are involved: Step 1, prepare a high titanium slag system according to a set ratio and mix them evenly; Step 2, putting the mixed high-titanium slag into a crucible, and hanging it in a high-temperature quenching furnace with a metal wire; Step 3, introducing protective gas, raising the temperature to the target temperature, and then maintaining the temperature for a period of time to melt and clear the slag sample; Step 4, slide the furnace bottom cover, open the furnace top fixing screws, loosen the metal wire, and the metal wire falls into the quenching medium container along with the crucible; Step 5, quenching the high-titanium slag to room temperature, drying it, and sealing and storing it for later use.

2. The method for preparing glass slag by rapid quenching of high-titanium molten slag according to claim 1, characterized in that: In step 1, the high-titanium slag is prepared by mixing analytically pure reagents, and its components are oxides, including TiO2, CaO, SiO2, MgO, and Al2O3, and the purity of the oxides is greater than 98%.

3. The method for preparing glass slag by rapid quenching of high-titanium molten slag according to claim 1, characterized in that: In step 2, the crucible is made of one of corundum, graphite, and molybdenum; the metal wire is made of molybdenum or tungsten, and has a size of 1 mm to 4 mm.

4. The method for preparing glass slag by rapid quenching of high-titanium molten slag according to claim 1, characterized in that: In step 3, the protective gas is argon, the purity is ≥99.999%, and the insulation time is ≥1h; The target temperature is determined according to different high-titanium slag systems, and is specifically determined using FactSage thermodynamic software and phase diagrams.

5. The method for preparing glass slag by rapid quenching of high-titanium molten slag according to claim 1, characterized in that: In step 4, the inert gas is one of argon and nitrogen, and the quenching medium container contains an ice-water mixture or an inert gas, wherein the temperature of the inert gas is -196°C.

6. The method for preparing glass slag by rapid quenching of high-titanium molten slag according to claim 1, characterized in that: In step 5, the slag cools to room temperature within 2 seconds.

7. A device for preparing glass slag by rapid quenching of high-titanium molten slag, used to implement the method according to any one of claims 1 to 6, characterized in that: Including high temperature quenching furnace, suspension system, gas supply system, computer temperature control system, rapid quenching system; Among them, the suspension system includes fixing screws, metal wires, and crucibles; the computer temperature control system includes MoSi2 heating rods, B-type thermocouples, and S-type thermocouples; the rapid quenching system is a quenching medium container; The high temperature quenching furnace has a built-in computer temperature control system, the suspension system is fixed in the high temperature quenching furnace by metal wires, and the rapid quenching system is located below the high temperature quenching furnace.

8. The device for preparing glass slag by rapid quenching of high-titanium molten slag according to claim 7, characterized in that: A small hole is arranged on the side wall of the crucible, one end of the metal wire is fixed to the fixing screw, and the other end passes through the small hole to hang the crucible.

9. The device for preparing glass slag by rapid quenching of high-titanium molten slag according to claim 7, characterized in that: A sliding cover is provided at the bottom of the high-temperature quenching furnace. The sliding cover is connected to the bottom of the high-temperature quenching furnace via a sliding track. The opening action of the sliding cover is linked to the release of the fixing screw.