A high-temperature smelting device for improving the melting effect of silica fume

Abstract

The present invention relates to the technical field of smelting, and particularly relates to a high-temperature smelting device for improving the melting effect of silica fume, which includes a smelting furnace and a gas system; a smelting space is arranged inside the smelting furnace, and a circular basin-shaped smelting pool is arranged in the smelting space. An air inlet is arranged on the smelting furnace directly above the middle of the smelting pool; the gas system includes a third gas cylinder; compressed gas is contained in the third gas cylinder; after the third gas cylinder is opened and a high-speed air flow rushes towards the smelting pool, it is immediately closed. The air flow forms fluctuations on the surface of the molten quartz, and the wave crests are superimposed on each other to form a peak wave at the center. When the peak wave reaches the highest point, the third gas cylinder is immediately opened to impact the peak wave that is about to descend; after the impact is completed, it is repeated; by using the gas system to achieve gas stirring, only gas contacts with the quartz during the stirring process, and no new impurities will be generated; the amplitude of the waveform is greater when the peak wave descends and impacts again; the other molten quartz at the bottom of the smelting pool will also be stirred by the waves on the upper layer.

Description

Technical Field

[0001] The present invention relates to the technical field of smelting, and particularly relates to a high-temperature smelting device for improving the melting effect of silica powder. Background Art

[0002] Silica powder is a non-toxic, odorless, and pollution-free inorganic non-metallic material. Due to its excellent properties such as good heat resistance, acid and alkali corrosion resistance, high thermal conductivity, high insulation, low expansion, stable chemical properties, and high hardness.

[0003] Currently, most of the silica powder smelting production processes directly put natural quartz into the interior of the smelting furnace, and the heater at the bottom of the smelting furnace heats the natural quartz inside the smelting furnace. Since the heater is located below the smelting furnace, in order to ensure uniform heating of the quartz, and because the temperature required for quartz melting is high, a metal stirrer is then used for stirring. This has caused a series of problems. Since quartz has a high hardness, some unmolten quartz wears the surface of the stirrer, thereby causing damage to the stirrer and at the same time incorporating impurities; when in a molten state, it will adhere to the surface of the stirrer, resulting in loss of raw materials, and it needs to be cleaned manually in the molten state, which is likely to scald the staff and is very inconvenient; the molten quartz transfers heat to the stirrer, reducing the melting effect while causing subtle reactions to the stirrer when heated, such as the generation of metal oxides and the like. These oxides enter the quartz as impurities and will affect the quality of the final silica powder.

[0004] Therefore, a high-temperature smelting device for improving the melting effect of silica powder that can achieve stirring while avoiding the generation of impurities is needed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: to provide a high-temperature smelting device for improving the melting effect of silica powder that can achieve stirring while avoiding the generation of impurities.

[0006] To solve the above technical problem, the technical solution adopted by the present invention is:

[0007] A high-temperature smelting device for improving the melting effect of silica powder, comprising a smelting furnace, a controller, and a gas system; the controller controls the operation of the smelting furnace and the gas system;

[0008] A smelting space is provided inside the smelting furnace, a circular basin-shaped smelting pool is provided inside the smelting space, and heating components are provided inside the smelting furnace on the side and bottom of the smelting pool; an air inlet is provided on the smelting furnace directly above the middle of the smelting pool, and an air outlet and an openable and closable feeding port are provided on the side wall of the smelting furnace;

[0009] The gas system includes an outer casing, a first gas cylinder, a second gas cylinder, a third gas cylinder, a first valve, a second valve, a check valve, a heater, and a compressor. The heater is arranged at the air inlet. The first gas cylinder, the second gas cylinder, and the third gas cylinder are arranged inside the outer casing. The first valve is respectively communicated with the first gas cylinder and the air outlet. The check valve is respectively communicated with the first gas cylinder and the second gas cylinder. The compressor is respectively communicated with the second gas cylinder and the third gas cylinder. The second valve is respectively communicated with the third gas cylinder and the heater. Compressed gas is contained in the third gas cylinder.

[0010] When the high-temperature smelting device for improving the melting effect of silica fume works, the controller opens the feeding port to put quartz into the smelting pool and then closes the feeding port. The quartz is filled up to two-thirds of the smelting pool at most. The controller starts the heating component to heat the smelting pool. After the quartz is heated to the completely molten state, air flow stirring is carried out.

[0011] The air flow stirring includes: the controller simultaneously opens the first valve, the second valve, the heater, and the compressor. The high-speed air flow formed at the moment when the second valve is opened rushes towards the smelting pool from directly above the middle of the smelting pool after being heated, and then the second valve is immediately closed. The high-speed air flow impacts the surface of the molten quartz to form fluctuations. Due to the round-basin-shaped smelting pool, the time for the fluctuations to hit the edge of the smelting pool and return to the middle of the molten quartz is the same, so that the wave crests are superposed on each other to form a peak wave at the center. When the peak wave reaches the highest point, the controller immediately opens the second valve to impact the peak wave that is about to descend. After the impact is completed, the controller repeats the action of opening the second valve to impact the peak wave that is about to descend.

[0012] After the air flow stirring is completed, the first valve, the second valve, the heater, the compressor, and the heating component are closed, and the feeding port is opened to take out the smelting pool.

[0013] Preferably, a desiccant is arranged inside the first gas cylinder.

[0014] The gas system further includes an air pump and a three-way valve. The three-way valve is respectively communicated with the second gas cylinder and the heater. The air pump is arranged between the second gas cylinder and the three-way valve.

[0015] Before the quartz is heated to the completely molten state, the controller opens the first valve, the air pump, the three-way valve, and the heater, and simultaneously closes the second valve and the compressor.

[0016] Preferably, a filtering component is further arranged inside the first gas cylinder.

[0017] Preferably, a blowing port is further arranged on the side wall of the smelting furnace above the smelting pool. The blowing port is arranged towards the smelting pool, and the air outlet direction of the blowing port deviates from the center of the smelting pool.

[0018] The blowing port is communicated with the three-way valve; when the quartz is heated to a partially molten state, the controller opens the first valve and the air pump, controls the three-way valve to be communicated with the blowing port, and uses the air flow blown out by the blowing port to make the partially molten quartz form a vortex pre-stirring, and at the same time closes the second valve and the compressor.

[0019] Preferably, when the air flow stirs, the controller closes the air pump and the three-way valve.

[0020] Preferably, an observation window is arranged on the feeding port.

[0021] Preferably, the smelting furnace further includes a camera, the camera is electrically connected to the controller, the camera is arranged on the observation window and faces the smelting pool, and the camera observes the state of the quartz in the smelting pool through the camera.

[0022] Preferably, the compressed gas is an inert gas.

[0023] Preferably, heat insulation layers are arranged on the outer surfaces of the first gas cylinder, the second gas cylinder, the third gas cylinder, the first valve, the second valve, and the one-way valve.

[0024] Preferably, a heat reflection coating is arranged on the side wall of the smelting space.

[0025] The beneficial effects of the present invention are as follows: By adopting a gas system to realize gas stirring, only gas contacts with the quartz during the stirring process, and no new impurities will be generated; and by the way of gas stirring, since the quartz in the molten state has extremely high viscosity, but it is still a fluid, the air flow is used to vertically impact the center of the smelting pool, combined with the round-basin-shaped smelting pool, so that the fluctuation diffuses from the center to the periphery at the same speed. Since the quartz is filled up to two-thirds of the smelting pool at most, it is ensured that the returning wave impacts the side wall of the smelting pool and will not overflow due to too high wave crest, ensuring the formation of the spike wave. While the spike wave is descending, the second valve is opened again for impact, so that the amplitude of the formed waveform is larger. This principle is the same as dropping a drop of water in the center of the water, and a small water drop will fly up at the original place where the water drop was dropped, that is, the spike wave formed after the wave crests are superposed. And in this application, due to the extremely high viscosity of the quartz, it will not separate, so it needs to be repeatedly impacted until the amplitude of the formed fluctuation reaches the maximum; the formation of the wave combined with the extremely high viscosity of the quartz in the molten state makes the other molten quartz at the bottom of the smelting pool also be pushed or surging by the upper wave, that is, the transmission of force, thereby realizing stirring, and the extremely high viscosity makes the spike wave have a limit and will not exceed the top of the smelting furnace; through the heater, it can ensure that the compressed and released gas still has enough temperature to realize heating at 360° of the smelting pool, improving the heating efficiency; through the setting of the second gas cylinder, it can play a role of gas buffering, combined with the compressed gas in the third gas cylinder, to realize that there is enough gas in the gas system for impact without affecting the operation of the compressor. Brief Description of the Drawings

[0026] Figure 1 FIG. 1 is a schematic diagram of the first external angle of a high-temperature smelting device for improving the melting effect of silica fume according to a specific embodiment of the present invention;

[0027] Figure 2 FIG. 2 is a schematic diagram of the second external angle of a high-temperature smelting device for improving the melting effect of silica fume according to a specific embodiment of the present invention;

[0028] Figure 3 FIG. 3 is a schematic structural diagram of a high-temperature smelting device for improving the melting effect of silica fume according to a specific embodiment of the present invention;

[0029] Figure 4 FIG. 4 is a schematic diagram of the fluctuation after quartz melting of a high-temperature smelting device for improving the melting effect of silica fume according to a specific embodiment of the present invention;

[0030] Figure 5 FIG. 5 is a schematic diagram of the working state of the air blowing port of a high-temperature smelting device for improving the melting effect of silica fume according to a specific embodiment of the present invention;

[0031] Reference Numerals Explanation: 1, smelting furnace; 11, smelting pool; 12, heating assembly; 13, air inlet; 14, air outlet; 15, feeding port; 16, air blowing port; 17, observation window; 18, camera; 2, gas system; 201, outer housing; 202, first gas cylinder; 2021, desiccant; 2022, filtering assembly; 203, second gas cylinder; 204, third gas cylinder; 205, first valve; 206, second valve; 207, check valve; 208, heater; 209, compressor; 210, air pump; 211, three-way valve; 3, fluctuation; 31, peak wave; 32, surge. Detailed Description of the Invention

[0032] In order to explain in detail the technical content, achieved objectives and effects of the present invention, the following is described in conjunction with the embodiments and with reference to the accompanying drawings.

[0033] Please refer to Figures 1 to 5 , a high-temperature smelting device for improving the melting effect of silica fume, comprising a smelting furnace 1, a controller and a gas system 2; the controller controls the operation of the smelting furnace 1 and the gas system 2;

[0034] A smelting space is arranged inside the smelting furnace 1, a circular basin-shaped smelting pool 11 is arranged inside the smelting space, and a heating assembly 12 is arranged inside the smelting furnace 1 on the side and bottom of the smelting pool 11; an air inlet 13 is arranged on the smelting furnace 1 directly above the middle of the smelting pool 11, and an air outlet 14 and an openable / closable feeding port 15 are arranged on the side wall of the smelting furnace 1;

[0035] The gas system 2 includes a housing 201, a first gas cylinder 202, a second gas cylinder 203, a third gas cylinder 204, a first valve 205, a second valve 206, a check valve 207, a heater 208, and a compressor 209. The heater 208 is disposed on the air inlet 13. The first gas cylinder 202, the second gas cylinder 203, and the third gas cylinder 204 are disposed within the housing 201. The first valve 205 is respectively connected to the first gas cylinder 202 and the air outlet 14. The check valve 207 is respectively connected to the first gas cylinder 202 and the second gas cylinder 203. The compressor 209 is respectively connected to the second gas cylinder 203 and the third gas cylinder 204. The second valve 206 is respectively connected to the third gas cylinder 204 and the heater 208. The third gas cylinder 204 contains compressed gas.

[0036] When the high-temperature smelting device for improving the melting effect of silica fume works, the controller opens the feeding port 15 to put quartz into the smelting pool 11 and then closes the feeding port 15. The quartz is filled up to two-thirds of the smelting pool 11 at most. The controller starts the heating component 12 to heat the smelting pool 11. After the quartz is heated to a completely molten state, gas stirring is carried out.

[0037] The gas stirring includes: The controller simultaneously opens the first valve 205, the second valve 206, the heater 208, and the compressor 209. The high-speed gas flow formed at the moment when the second valve 206 is opened rushes towards the smelting pool 11 from directly above the middle of the smelting pool 11 after being heated, and then the second valve 206 is immediately closed. The high-speed gas flow impacts the surface of the molten quartz to form fluctuations 3. Due to the round-basin-shaped smelting pool 11, the time for the fluctuations 3 to hit the edge of the smelting pool 11 and return to the middle of the molten quartz is the same, so that the wave crests are superimposed on each other to form a peak wave 31 at the center. When the peak wave 31 reaches the highest point, the controller immediately opens the second valve 206 to impact the peak wave 31 that is about to descend. After the impact is completed, the controller repeats the action of opening the second valve 206 to impact the peak wave 31 that is about to descend.

[0038] After the gas stirring is completed, the first valve 205, the second valve 206, the heater 208, the compressor 209, and the heating component 12 are closed, and the feeding port 15 is opened to take out the smelting pool 11.

[0039] As can be seen from the above description, by adopting the gas system 2 to achieve gas stirring, only gas contacts with quartz during the stirring process, and no new impurities will be generated; and by means of gas stirring, since quartz in a molten state has extremely high viscosity but is still a fluid, the center of the smelting pool 11 is vertically impacted by the air flow, combined with the round-basin-shaped smelting pool 11, so that the fluctuation 3 diffuses from the center to the surroundings at the same speed. Since quartz is filled up to two-thirds of the smelting pool 11 at most, it is ensured that the returning wave impacts the side wall of the smelting pool 11 and will not overflow due to too high wave peaks, ensuring the formation of the peak wave 31. While the peak wave 31 is descending, the second valve 206 is opened again for impact, so that the amplitude of the formed waveform is larger. This principle is the same as dropping a drop of water in the center of water, and a small water drop will fly up at the original place where the water drop was dropped, that is, the peak wave 31 formed after the wave peaks are superimposed. And in this application, since quartz has extremely high viscosity and will not separate, repeated impacts are required until the amplitude of the formed fluctuation 3 reaches the maximum; the formation of the wave combined with the extremely high viscosity of quartz in a molten state causes the other molten quartz at the bottom of the smelting pool 11 to be pushed or surges 32 by the upper wave, that is, the transmission of force, thereby realizing stirring. And the extremely high viscosity makes the peak wave 31 have a limit and will not exceed the top of the smelting furnace 1; through the heater 208, it can be ensured that the gas still has sufficient temperature after compression release, realizing heating for 360° of the smelting pool 11 and improving the heating efficiency; through the setting of the second gas cylinder 203, it can play a role in gas buffering. Combined with the compressed gas in the third gas cylinder 204, there is enough gas in the gas system 2 for impact without affecting the operation of the compressor 209. Through the round-basin-shaped smelting pool 11, it is avoided that the molten quartz at the dead corners is difficult to be stirred and mixed, and it is also convenient to pour out and cool after smelting is completed.

[0040] Further, a desiccant 2021 is provided in the first gas cylinder 202;

[0041] The gas system 2 further includes an air pump 210 and a three-way valve 211. The three-way valve 211 is respectively communicated with the second gas cylinder 203 and the heater 208; the air pump 210 is arranged between the second gas cylinder 203 and the three-way valve 211;

[0042] Before the quartz is heated to a completely molten state, the controller opens the first valve 205, the air pump 210, the three-way valve 211, and the heater 208, and at the same time closes the second valve 206 and the compressor 209.

[0043] As can be seen from the above description, through the desiccant 2021, all the moisture in the gas device can be removed, avoiding the reaction of quartz in a molten state with moisture or hydrogen, oxygen, and hydroxide ions decomposed from moisture, and further avoiding the generation of impurities.

[0044] Further, a filtering component 2022 is also provided inside the first gas cylinder 202.

[0045] As can be seen from the above description, through the filtering component 2022, the gas in the high-temperature melting device can be filtered to reduce impurities.

[0046] Further, an air blowing port 16 is also provided on the side wall of the melting furnace 1 above the melting pool 11. The air blowing port 16 is arranged towards the melting pool 11, and the air outlet direction of the air blowing port 16 deviates from the center of the melting pool 11.

[0047] The air blowing port 16 is communicated with a three-way valve 211. When the quartz is heated to a partially molten state, the controller opens the first valve 205 and the air pump 210, controls the three-way valve 211 to be communicated with the air blowing port 16, and uses the airflow blown out from the air blowing port 16 to make the partially molten quartz form a vortex for pre-stirring. At the same time, the second valve 206 and the compressor 209 are closed.

[0048] As can be seen from the above description, the airflow blown out from the air blowing port 16 makes the partially molten quartz form a vortex for pre-stirring, which can further improve the heat conduction effect and thus accelerate melting.

[0049] Further, when the airflow stirs, the controller closes the air pump 210 and the three-way valve 211.

[0050] Further, an observation window 17 is provided on the feeding port 15.

[0051] As can be seen from the above description, through the setting of the observation window 17, observation can be realized.

[0052] Further, the melting furnace 1 further includes a camera 18. The camera 18 is electrically connected to the controller. The camera 18 is arranged on the observation window 17 and faces the melting pool 11. The camera 18 observes the state of the quartz in the melting pool 11 through the camera 18.

[0053] Further, the compressed gas is an inert gas.

[0054] As can be seen from the above description, through the inert gas, the situation of production impurities can be reduced as much as possible.

[0055] Further, heat insulation layers are provided on the outer surfaces of the first gas cylinder 202, the second gas cylinder 203, the third gas cylinder 204, the first valve 205, the second valve 206, and the one-way valve 207.

[0056] As can be seen from the above description, through the setting of the heat insulation layer, heat preservation can be realized and energy consumption can be reduced.

[0057] Further, a heat-reflective coating is provided on the side wall of the melting space.

[0058] As can be seen from the above description, through the heat-reflective coating, the heat radiated by the heating and melting of quartz can be reflected within the melting space to ensure the heat preservation effect. Embodiment

[0059] A high-temperature melting device for improving the melting effect of silica fume, comprising a melting furnace 1, a controller, and a gas system 2; the controller controls the operation of the melting furnace 1 and the gas system 2;

[0060] A melting space is provided inside the melting furnace 1, and a circular basin-shaped melting pool 11 is provided within the melting space. Heating components 12 are provided inside the melting furnace 1 on the sides and bottom of the melting pool 11; an air inlet 13 is provided on the melting furnace 1 directly above the middle of the melting pool 11, and an air outlet 14 and an openable and closable feeding port 15 are provided on the side wall of the melting furnace 1;

[0061] The gas system 2 includes an outer casing 201, a first gas cylinder 202, a second gas cylinder 203, a third gas cylinder 204, a first valve 205, a second valve 206, a one-way valve 207, a heater 208, and a compressor 209. The heater 208 is provided at the air inlet 13. The first gas cylinder 202, the second gas cylinder 203, and the third gas cylinder 204 are provided inside the outer casing 201. The first valve 205 is respectively connected to the first gas cylinder 202 and the air outlet 14. The one-way valve 207 is respectively connected to the first gas cylinder 202 and the second gas cylinder 203. The compressor 209 is respectively connected to the second gas cylinder 203 and the third gas cylinder 204. The second valve 206 is respectively connected to the third gas cylinder 204 and the heater 208; the third gas cylinder 204 contains compressed gas;

[0062] When the high-temperature melting device for improving the melting effect of silica fume is working, the controller opens the feeding port 15 to put quartz into the melting pool 11 and then closes the feeding port 15. The quartz is filled up to two-thirds of the melting pool 11 at most; the controller starts the heating components 12 to heat the melting pool 11. After the quartz is heated to a completely molten state, gas stirring is carried out;

[0063] The air flow stirring includes: the controller simultaneously opens the first valve 205, the second valve 206, the heater 208, and the compressor 209. The high-speed air flow formed at the moment when the second valve 206 is opened rushes towards the smelting pool 11 from directly above the middle of the smelting pool 11 after being heated, and then the second valve 206 is immediately closed. The high-speed air flow impacts the surface of the molten quartz to form fluctuations 3. Due to the circular basin-shaped smelting pool 11, the time for the fluctuations 3 to hit the edge of the smelting pool 11 and return to the middle of the molten quartz is the same, so that the wave crests are superimposed on each other to form a peak wave 31 at the center. When the peak wave 31 reaches the highest point, the controller immediately opens the second valve 206 to impact the peak wave 31 that is about to descend; after the impact is completed, the controller repeats the action of opening the second valve 206 to impact the peak wave 31 that is about to descend;

[0064] After the air flow stirring is completed, the first valve 205, the second valve 206, the heater 208, the compressor 209, and the heating component 12 are closed, and the feeding port 15 is opened to take out the smelting pool 11.

[0065] A desiccant 2021 is provided in the first gas cylinder 202;

[0066] The gas system 2 further includes an air pump 210 and a three-way valve 211. The three-way valve 211 is respectively communicated with the second gas cylinder 203 and the heater 208; the air pump 210 is arranged between the second gas cylinder 203 and the three-way valve 211;

[0067] Before the quartz is heated to the completely molten state, the controller opens the first valve 205, the air pump 210, the three-way valve 211, and the heater 208, and simultaneously closes the second valve 206 and the compressor 209.

[0068] A filter component 2022 is further provided in the first gas cylinder 202.

[0069] An air blowing port 16 is further provided on the side wall of the smelting furnace 1 above the smelting pool 11. The air blowing port 16 is arranged towards the direction of the smelting pool 11, and the air outlet direction of the air blowing port 16 deviates from the center of the smelting pool 11;

[0070] The air blowing port 16 is communicated with the three-way valve 211; when the quartz is heated to the partially molten state, the controller opens the first valve 205 and the air pump 210, controls the three-way valve 211 to be communicated with the air blowing port 16, and uses the air flow blown out by the air blowing port 16 to make the partially molten quartz form a vortex pre-stirring, and simultaneously closes the second valve 206 and the compressor 209.

[0071] When the air flow is stirring, the controller closes the air pump 210 and the three-way valve 211.

[0072] An observation window 17 is provided on the feeding port 15.

[0073] The smelting furnace 1 further includes a camera 18, which is electrically connected to the controller. The camera 18 is arranged on the observation window 17 and faces the smelting pool 11. The camera 18 observes the state of the quartz in the smelting pool 11 through the camera 18.

[0074] The compressed gas is an inert gas, such as helium or neon.

[0075] Heat insulation layers are provided on the outer surfaces of the first gas cylinder 202, the second gas cylinder 203, the third gas cylinder 204, the first valve 205, the second valve 206, and the one-way valve 207.

[0076] A heat-reflective coating is provided on the side wall of the smelting space. Embodiment

[0077] A high-temperature smelting device for improving the melting effect of silica fume includes a smelting furnace 1, a controller, and a gas system 2; the controller controls the operation of the smelting furnace 1 and the gas system 2;

[0078] A smelting space is arranged inside the smelting furnace 1, and a round-basin-shaped smelting pool 11 is arranged in the smelting space. Heating components 12 are arranged in the smelting furnace 1 on the side and bottom of the smelting pool 11; an air inlet 13 is arranged on the smelting furnace 1 directly above the middle of the smelting pool 11, and an air outlet 14 and an openable and closable feeding port 15 are arranged on the side wall of the smelting furnace 1;

[0079] The gas system 2 includes an outer housing 201, a first gas cylinder 202, a second gas cylinder 203, a third gas cylinder 204, a first valve 205, a second valve 206, a one-way valve 207, a heater 208, and a compressor 209. The heater 208 is arranged on the air inlet 13. The first gas cylinder 202, the second gas cylinder 203, and the third gas cylinder 204 are arranged inside the outer housing 201. The first valve 205 is respectively communicated with the first gas cylinder 202 and the air outlet 14. The one-way valve 207 is respectively communicated with the first gas cylinder 202 and the second gas cylinder 203. The compressor 209 is respectively communicated with the second gas cylinder 203 and the third gas cylinder 204. The second valve 206 is respectively communicated with the third gas cylinder 204 and the heater 208; The third gas cylinder 204 contains compressed gas;

[0080] When the high-temperature smelting device for improving the melting effect of silica fume works, the controller opens the feeding port 15 to put quartz into the smelting pool 11 and then closes the feeding port 15. The quartz is filled up to two-thirds of the smelting pool 11 at most; the controller starts the heating component 12 to heat the smelting pool 11, and after the quartz is heated to a completely molten state, gas stirring is carried out;

[0081] The air flow stirring includes: the controller simultaneously opens the first valve 205, the second valve 206, the heater 208, and the compressor 209. The high-speed air flow formed at the moment when the second valve 206 is opened rushes towards the melting pool 11 from directly above the middle of the melting pool 11 after being heated, and then the second valve 206 is immediately closed. The high-speed air flow impacts the surface of the molten quartz to form fluctuations 3. Due to the circular basin-shaped melting pool 11, the time for the fluctuations 3 to hit the edge of the melting pool 11 and return to the middle of the molten quartz is the same, so that the wave crests are superimposed on each other to form a peak wave 31 at the center. When the peak wave 31 reaches the highest point, the controller immediately opens the second valve 206 to impact the upcoming downward peak wave 31; after the impact is completed, the controller repeats the action of opening the second valve 206 to impact the upcoming downward peak wave 31;

[0082] After the air flow stirring is completed, the first valve 205, the second valve 206, the heater 208, the compressor 209, and the heating component 12 are closed, and the feeding port 15 is opened to take out the melting pool 11.

[0083] A desiccant 2021 is arranged in the first gas cylinder 202;

[0084] The gas system 2 further includes an air pump 210 and a three-way valve 211. The three-way valve 211 is respectively communicated with the second gas cylinder 203 and the heater 208; the air pump 210 is arranged between the second gas cylinder 203 and the three-way valve 211;

[0085] Before the quartz is heated to the completely molten state, the controller opens the first valve 205, the air pump 210, the three-way valve 211, and the heater 208, and simultaneously closes the second valve 206 and the compressor 209.

[0086] A filter assembly 2022 is further arranged in the first gas cylinder 202.

[0087] When the air flow is stirred, the controller closes the air pump 210 and the three-way valve 211.

[0088] An observation window 17 is arranged on the feeding port 15.

[0089] The melting furnace 1 further includes a camera 18. The camera 18 is electrically connected to the controller. The camera 18 is arranged on the observation window 17 and faces the melting pool 11. The camera 18 observes the state of the quartz in the melting pool 11 through the camera 18.

[0090] Heat insulation layers are arranged on the outer surfaces of the first gas cylinder 202, the second gas cylinder 203, the third gas cylinder 204, the first valve 205, the second valve 206, and the one-way valve 207.

[0091] A heat reflection coating is arranged on the side wall of the melting space.

[0092] The above are only embodiments of the present invention, and do not thereby limit the patent scope of the present invention. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical fields, shall similarly be included within the patent protection scope of the present invention.

Claims

1. A high-temperature smelting device for improving the melting effect of silicon micropowder, characterized in that: It includes a smelting furnace, a controller and a gas system; the controller controls the operation of the smelting furnace and the gas system; A smelting space is provided inside the smelting furnace, a round basin-shaped smelting pool is provided in the smelting space, and heating components are provided in the smelting furnace at the side and bottom of the smelting pool; an air inlet is provided on the smelting furnace just above the middle of the smelting pool, and an air outlet and a closable feeding port are provided on the side wall of the smelting furnace; The gas system comprises an outer shell, a first gas cylinder, a second gas cylinder, a third gas cylinder, a first valve, a second valve, a one-way valve, a heater, and a compressor. The heater is arranged on the gas inlet. The first gas cylinder, the second gas cylinder, and the third gas cylinder are arranged in the outer shell. The first valve is communicated with the first gas cylinder and the gas outlet, respectively. The one-way valve is communicated with the first gas cylinder and the second gas cylinder, respectively. The compressor is communicated with the second gas cylinder and the third gas cylinder, respectively. The second valve is communicated with the third gas cylinder and the heater, respectively. The third gas cylinder contains compressed gas. When the high-temperature smelting device for improving the melting effect of silicon micropowder is working, the controller opens the feeding port to put quartz into the smelting pool and then closes the feeding port, and the quartz is filled to two-thirds of the smelting pool at most; the controller starts the heating component to heat the smelting pool, and the air flow is stirred after the quartz is heated to a completely molten state; The airflow stirring comprises: a controller opens the first valve, the second valve, the heater, and the compressor at the same time; a high-speed airflow formed at the moment the second valve is opened is heated and then rushes toward the smelting pool from the top of the middle of the smelting pool, and then the second valve is immediately closed; the high-speed airflow impacts the surface of the molten quartz to form a wave; due to the round basin-shaped smelting pool, the wave takes the same time to return to the middle of the molten quartz after hitting the edge of the smelting pool, so that the wave crests are superimposed on each other at the center to form a spike wave; when the spike wave reaches the highest point, the controller immediately opens the second valve to impact the spike wave that is about to go down; after the impact is completed, the controller repeatedly executes the action of opening the second valve to impact the spike wave that is about to go down; After the air flow stirring is completed, the first valve, the second valve, the heater, the compressor, and the heating component are closed, and the feeding port is opened to take out the smelting pool.

2. The high-temperature smelting device for improving the melting effect of silicon powder according to claim 1, characterized in that: A desiccant is provided in the first gas cylinder; The gas system further comprises an air pump and a three-way valve, wherein the three-way valve is connected to the second gas cylinder and the heater respectively; the air pump is arranged between the second gas cylinder and the three-way valve; Before the quartz is heated to a completely molten state, the controller opens the first valve, the air pump, the three-way valve, and the heater, and simultaneously closes the second valve and the compressor.

3. The high-temperature smelting device for improving the melting effect of silicon powder according to claim 2, characterized in that: A filter assembly is also provided in the first gas cylinder.

4. The high-temperature smelting device for improving the melting effect of silicon powder according to claim 2, characterized in that: An air blowing port is also provided on the side wall of the smelting furnace above the smelting pool, and the air blowing port is arranged toward the smelting pool and the air outlet direction of the air blowing port deviates from the center of the smelting pool; The air port is connected to the three-way valve; when the quartz is heated to a partially molten state, the controller opens the first valve and the air pump, controls the three-way valve to be connected to the air port, and uses the air flow blown out of the air port to make the partially molten quartz form a vortex for pre-stirring, while closing the second valve and the compressor.

5. The high-temperature smelting device for improving the melting effect of silicon powder according to claim 4, characterized in that: When the air flow is stirring, the controller turns off the air pump and the three-way valve.

6. The high-temperature smelting device for improving the melting effect of silicon powder according to claim 1, characterized in that: An observation window is arranged on the feeding port.

7. The high-temperature smelting device for improving the melting effect of silicon powder according to claim 6, characterized in that: The smelting furnace also includes a camera, which is electrically connected to the controller. The camera is arranged on the observation window and faces the smelting pool. The camera observes the state of the quartz in the smelting pool through the camera.

8. The high-temperature smelting device for improving the melting effect of silicon powder according to claim 1, characterized in that: The compressed gas is an inert gas.

9. The high-temperature smelting device for improving the melting effect of silicon powder according to claim 1, characterized in that: The outer surfaces of the first gas cylinder, the second gas cylinder, the third gas cylinder, the first valve, the second valve and the one-way valve are all provided with a heat-insulating layer.

10. The high-temperature smelting device for improving the melting effect of silicon powder according to claim 1, characterized in that: The side walls of the smelting space are provided with a heat reflective coating.

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