Bead forming furnace suitable for preparing high-refraction glass beads

Abstract

The invention relates to the technical field of bead forming, and discloses a bead forming furnace suitable for preparing high-refraction glass beads, the bead forming furnace comprises a beading furnace, a dispersing mechanism, a driving mechanism, a bead forming cover and a cooling cover, and further comprises a cyclone separator fixedly mounted on one side of the beading furnace, and the cyclone separator is in through connection with the beading furnace through a pipeline; the dispersing mechanism consists of a gas manifold, a feeding pipe, a feeding hopper, a maintenance pipe vortex pipe and a dispersing chamber; according to the technical scheme, the compressed air high-speed jetting and vortex conveying technology is arranged, glass micro powder is effectively conveyed and efficiently dispersed, it is ensured that the glass micro powder is evenly dispersed, the retention time of the glass micro powder in the device is prolonged, and therefore the uniformity and consistency of the spheroidizing effect are ensured; by improving the speed and strength of the air flow, it is ensured that the glass micro powder is fused and spheroidized in an efficient and uniform environment, and finally the purposes of improving the spheroidizing quality and ensuring the spheroidizing uniformity are achieved.

Description

Technical Field

[0001] This invention relates to the field of microsphere forming technology, and in particular to a bead-forming furnace suitable for preparing high-refractive-index glass microspheres. Background Technology

[0002] With the development of modern optical technology, high-refractive-index glass microspheres have been widely used in lasers, fiber optic communication, display technology and other fields due to their unique optical and physical properties. Glass microspheres are tiny bead-like structures formed by melting glass materials at high temperatures and then cooling and solidifying them. Their refractive index can be adjusted by precisely controlling the glass formulation and temperature changes during the preparation process, thereby achieving customized requirements for specific optical properties. Traditional methods for preparing glass microspheres generally involve liquid injection or pyrolysis, but these methods are often difficult to achieve efficient batch preparation of high-refractive-index glass microspheres. Therefore, a bead-forming furnace suitable for preparing high-refractive-index glass microspheres is proposed.

[0003] The CN106145622B announcement describes a bead-forming furnace suitable for preparing high-refractive-index glass microspheres. It addresses the issue that the microsphere precursor powder, upon entering the furnace chamber, experiences accelerated descent speed and increased cooling rate under the combined action of flame and gravity, thus preventing crystallization. However, this method is unsuitable for large-scale production. With excessive feed volume, much raw material is carried away by the airflow before undergoing a thermal reaction, resulting in higher raw material content in subsequent processes, higher finished product yield, and lower product qualification rate. Furthermore, the airflow direction within the furnace is from top to bottom, causing a significant amount of raw material to enter the microsphere collector before thermal reaction, drastically reducing product quality. The furnace lacks any cooling equipment, leading to easy scaling on the inner wall, resulting in poor product quality and low production efficiency. However, similar structures still exhibit numerous defects in practical use. For example, existing bead-forming furnaces cannot uniformly disperse glass powder during transport and extend the heating and spheroidizing time, affecting spheroidizing effect and product quality stability.

[0004] Therefore, the aforementioned technical problems need to be solved. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention proposes a bead-forming furnace suitable for preparing high-refractive-index glass microspheres, which solves the problems of existing bead-forming furnaces being unable to uniformly disperse glass micropowder during the glass powder conveying process and prolonging the heating and spheroidizing time, thus affecting the spheroidizing effect and the quality stability of the product.

[0006] To solve the above-mentioned technical problems, the basic technical solution proposed by this invention is as follows:

[0007] A bead-forming furnace suitable for preparing high-refractive glass microspheres includes a bead-forming furnace, a dispersion mechanism, a driving mechanism, a bead-forming hood, and a cooling hood. It also includes a cyclone separator fixedly installed on one side of the bead-forming furnace, and the cyclone separator is connected to the bead-forming furnace through a pipe. The bead-forming hood is fixedly installed inside the bead-forming furnace. The cooling hood is fixedly installed at the bottom inside the bead-forming furnace.

[0008] A preheating pipe is fixedly installed inside the cooling shroud. A vortex conveying pipe is installed through the inner wall of the preheating pipe, and vortex vanes are installed on the inner wall of the vortex conveying pipe.

[0009] The dispersion mechanism is fixedly installed at the bottom of the beading furnace. The dispersion mechanism consists of a gas manifold, a feed pipe, a feed hopper, a maintenance pipe, a vortex tube, and a dispersion chamber. The gas manifold is sleeved on the outside of the dispersion chamber, and the inner walls of the gas manifold and the dispersion chamber are provided with connecting air inlets. An air inlet pipe is installed through one side of the gas manifold. The vortex tube is installed through the top of the dispersion chamber. The maintenance pipe is installed through the bottom of the dispersion chamber. The feed pipe is installed through one side of the top of the dispersion chamber. A high-pressure conveying pipe is fixedly installed inside the feed pipe. A compression nozzle is fixedly installed at one end of the feed pipe. The feed hopper is fixedly installed at the top of the feed pipe.

[0010] Compressed air is compressed through a compression nozzle and then delivered into the feed pipe. The compressed air entering the feed pipe transports the glass powder conveyed by the feed hopper to the high-pressure conveying pipe. The compressed air containing the glass powder is further compressed through the high-pressure conveying pipe and then delivered into the dispersion chamber.

[0011] Simultaneously, compressed air is delivered to the gas manifold through the intake pipe; the gas manifold delivers compressed air to the dispersion chamber through the intake port, forming a high-speed jet of airflow. The glass powder is rapidly dispersed under the action of the high-speed jet of airflow. The dispersed glass powder airflow enters the vortex tube, where it forms a vortex under the action of the vortex tube, further dispersing the glass powder particles. The dispersed glass powder enters the vortex conveying pipe. When the glass powder airflow passes through the vortex vane, it moves along a spiral trajectory under the action of centrifugal force, forming a strong vortex field and prolonging its residence time in the high-temperature zone.

[0012] Preferably, a toothed ring is rotatably installed on the inner wall of the cooling shroud, and a lever is fixedly installed at the bottom of the toothed ring. A collection hopper is installed through the bottom of the cooling shroud. A burner is installed through the top of the preheating pipe, and a double sleeve is installed through one side of the bottom of the burner, with one end of the double sleeve extending to the outer wall of the beading furnace. A guide cover is sleeved on the top of the outer side of the preheating pipe.

[0013] Preferably, the drive mechanism comprises a drive motor, a first transmission gear rod, a second transmission gear rod, and a spiral conveyor rod. A drive gear is fixedly mounted on the output end of the drive motor. The bottom of the drive gear is fixedly connected to the top of the spiral conveyor rod, and the spiral conveyor rod extends into the interior of the feed hopper. One side of the drive gear meshes with one end of the first transmission gear rod, the other end of the first transmission gear rod meshes with the top of the second transmission gear rod, and the bottom end of the second transmission gear rod meshes with a gear ring. A mounting bracket is fixedly mounted on the bottom of the drive motor, and the first transmission gear rod is fixedly mounted on the top of the feed hopper.

[0014] Preferably, one end of the intake pipe and one end of the compression nozzle are connected to the output end of the air compressor through a pipe.

[0015] Preferably, three support frames are equidistantly installed on the bottom of the outer side of the beading furnace, two of which are fixedly mounted with mounting plates on their outer sides, and an air compressor is fixedly mounted on the top of the mounting plates.

[0016] Preferably, the cooling hood isolates the bottom of the bead-forming furnace into a liquid cooling chamber, with an inlet valve installed through one side of the liquid cooling chamber and an outlet valve installed through one side of the bottom of the liquid cooling chamber.

[0017] Preferably, the bead-forming furnace consists of a protective outer shell, a heat-insulating cotton layer, and a corrosion-resistant inner layer, which are distributed sequentially from the outside to the inside.

[0018] Preferably, the middle section of the bead-forming cover is an arc-shaped cover, and an isolation plate is fixedly installed at the bottom of the bead-forming cover, forming a vacuum cavity between the bead-forming cover and the inner wall of the bead-forming furnace.

[0019] The beneficial effects of this invention are:

[0020] The technical solution of this invention utilizes the feature of further compressing compressed air through a compression nozzle before delivery. This allows glass powder from the feed hopper to be transported with sufficiently high energy into a high-pressure delivery pipe. The high-pressure air, now free of glass powder, is further compressed through the high-pressure delivery pipe and then delivered into the dispersion chamber. This achieves a highly efficient compressed air delivery process, ensuring that the gas entering the dispersion chamber has sufficient pressure and energy. It effectively transports and propels the glass powder into the dispersion chamber, enabling it to fully participate in the subsequent dispersion process, thereby improving the efficiency and effectiveness of the subsequent dispersion operation.

[0021] Meanwhile, the technical feature of delivering compressed air to the dispersion chamber through a gas manifold and its internal air inlet creates a high-speed jet of air. This high-speed airflow provides powerful kinetic energy, causing collisions and agitation with the glass powder within the dispersion chamber, resulting in rapid dispersion and effectively reducing powder aggregation. Furthermore, by incorporating a vortex tube within the dispersion chamber, the vortex effect generated by the rotating, rising glass powder further agitates the dispersed airflow, further dispersing the glass powder particles and achieving a more uniform and finer state, thus improving the spheroidization quality in subsequent processing.

[0022] By setting up a vortex conveying pipe and swirl vanes, the airflow of glass micropowder moves along a spiral trajectory under the action of the swirl vanes. The tangential velocity component causes the airflow to rotate, forming a strong vortex field, which further increases the airflow velocity. The strong vortex field can prolong the residence time of glass micropowder in the device, ensuring better melting and dispersion of glass micropowder during the spheroidization process, thereby improving the quality and uniformity of the spheroidized product. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the bead-forming furnace in this invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the bead-forming cover in this invention;

[0026] Figure 4 This is a diagram showing the airflow inside the bead-forming cover in this invention.

[0027] Figure 5 This is a schematic diagram of the connection structure between the dispersion mechanism and the cooling shroud in this invention;

[0028] Figure 6 This is a schematic diagram of the dispersing mechanism structure in this invention;

[0029] Figure 7 This is a schematic diagram of the internal structure of the dispersing mechanism in this invention;

[0030] Figure 8 This is a diagram showing the internal airflow of the dispersion mechanism in this invention.

[0031] Figure 9 This is a schematic diagram showing the transmission connection between the cooling cover and the drive mechanism in this invention;

[0032] Figure 10 This is a schematic diagram of the internal structure of the cooling shroud in this invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Beading furnace; 101. Support frame; 102. Mounting plate; 103. Air compressor; 104. Liquid cooling chamber; 2. Cyclone separator; 3. Dispersion mechanism; 301. Gas manifold; 3011. Air inlet; 3012. Air inlet pipe; 302. Feed pipe; 3021. High-pressure conveying pipe; 3022. Compression nozzle; 303. Feed hopper; 304. Vortex tube; 305. Inspection pipe; 306. Dispersion chamber; 4. Drive mechanism; 401. Drive motor; 4011. Drive gear; 4012. Mounting bracket; 402. First transmission gear rod; 403. Second transmission gear rod; 404. Spiral conveyor rod; 5. Bead forming hood; 6. Cooling hood; 601. Preheating pipe; 6011. Vortex conveying pipe; 6012. Swirl vane; 602. Burner; 603. Double sleeve; 604. Guide hood; 605. Collection hopper; 606. Gear ring; 6061. Actuating rod. Detailed Implementation

[0035] The following will be combined with the appendix Figure 1 To be continued Figure 10 The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] A bead-forming furnace suitable for preparing high-refractive glass microspheres includes a bead-forming furnace 1, a dispersion mechanism 3, a driving mechanism 4, a bead-forming cover 5, and a cooling cover 6. It also includes a cyclone separator 2 fixedly installed on one side of the bead-forming furnace 1, and the cyclone separator 2 is connected to the bead-forming furnace 1 through a pipe.

[0037] Among them, a filter is fixedly installed on the top of the cyclone separator 2. The cyclone separator 2 separates the solid and gas of the flue gas generated by combustion inside the bead furnace 1 through the pipeline. The separated gas is filtered by the filter and then transported through the pipeline to the external heat recovery unit for heat recovery.

[0038] The bead-forming cover 5 is fixedly installed inside the bead-forming furnace 1; the cooling cover 6 is fixedly installed at the bottom inside the bead-forming furnace 1; a preheating pipe 601 is fixedly installed inside the cooling cover 6, and a vortex conveying pipe 6011 is installed through the inner wall of the preheating pipe 601, and a vortex vane 6012 is installed on the inner wall of the vortex conveying pipe 6011.

[0039] The cooling shroud 6 has a conical protective cover fixedly installed on its top, which protects the toothed ring 606. The preheating tube 601 is energized to convert electrical energy into heat energy, which is then transferred to the interior of the vortex conveying tube 6011. When the airflow containing glass micropowder passes through the swirl plate 6012, the airflow containing glass micropowder moves along a spiral trajectory under the action of centrifugal force. The spiral trajectory ensures that the ultrafine powder and the high-temperature gas are in full contact, thereby improving the preheating effect.

[0040] The dispersion mechanism 3 is fixedly installed at the bottom of the bead furnace 1. The dispersion mechanism 3 consists of a gas manifold 301, a feed pipe 302, a feed hopper 303, a maintenance pipe 305, a vortex tube 304, and a dispersion chamber 306. The gas manifold 301 is sleeved on the outside of the dispersion chamber 306, and both the inner wall of the gas manifold 301 and the inner wall of the dispersion chamber 306 are provided with connecting air inlets 3011. An air inlet pipe 3012 is installed through one side of the gas manifold 301. The vortex tube 304 is installed through the top of the dispersion chamber 306. The maintenance pipe 305 is installed through the bottom of the dispersion chamber 306. The feed pipe 302 is installed through one side of the top of the dispersion chamber 306. A high-pressure conveying pipe 3021 is fixedly installed inside the feed pipe 302. A compression nozzle 3022 is fixedly installed at one end of the feed pipe 302. The feed hopper 303 is fixedly installed at the top of the feed pipe 302.

[0041] Compressed air is compressed through the compression nozzle 3022 and then delivered to the inside of the feed pipe 302. The compressed air entering the feed pipe 302 delivers the glass powder conveyed by the feed hopper 303 to the high-pressure conveying pipe 3021. The compressed air containing the glass powder is further compressed through the high-pressure conveying pipe 3021 and then delivered to the inside of the dispersion chamber 306.

[0042] Simultaneously, compressed air is delivered to the gas manifold 301 through the inlet pipe 3012; the gas manifold 301 delivers compressed air to the dispersion chamber 306 through the inlet port 3011, forming a high-speed jet airflow. The glass powder is rapidly dispersed under the action of the high-speed jet airflow. As the dispersed glass powder airflow rotates and rises, it enters the vortex tube 304, forming a vortex in the vortex tube 304, further dispersing the glass powder particles; the dispersed glass powder enters the vortex conveying pipe 6011. When the glass powder airflow passes through the vortex plate 6012, it moves along a spiral trajectory under the action of centrifugal force. The tangential velocity component causes the airflow to rotate, forming a strong vortex field. The vortex and the strong vortex field prolong the residence time of the glass powder in the device, ensuring that it is fully melted and spheroidized, while ensuring the uniform dispersion of the glass powder, thereby ensuring the uniformity and consistency of the spheroidization effect;

[0043] It should be noted that the combination of the compression nozzle 3022 and the feed pipe 302 forms a contraction-expansion structure to achieve supersonic acceleration of the gas. When the compressed gas flows through the compression nozzle 3022, the pressure energy is converted into kinetic energy, and the airflow velocity gradually increases. The airflow reaches the speed of sound at the critical section of the compression nozzle 3022, at which point the gas pressure energy continues to be converted into kinetic energy. After the airflow enters the feed pipe 302, due to the supersonic flow characteristics, the gas pressure energy is further converted into kinetic energy, accompanied by an expansion process. Finally, at the outlet of the high-pressure conveying pipe 3021, the airflow velocity is greater than the speed of sound, maximizing the gas kinetic energy and providing a basis for the subsequent formation of a strong vortex field, ensuring that the glass micropowder is efficiently conveyed and dispersed under high pressure.

[0044] When the airflow of glass micropowder passes through the swirl plate 6012, it moves along a spiral trajectory under the action of centrifugal force. The tangential velocity component causes the airflow to rotate, forming a strong vortex field. This prolongs the residence time of the airflow in the vortex conveying pipe 6011 and the spheroidizing high-temperature zone formed by combustion in the burner 602, ensuring that the glass micropowder is fully melted and spheroidized. The vortex airflow carries the glass micropowder and disperses it evenly, ensuring that the glass micropowder is spheroidized uniformly. The combination of supersonic airflow and strong vortex field achieves rapid and uniform spheroidization of glass micropowder.

[0045] like Figures 9 to 10 As shown, a toothed ring 606 is rotatably installed on the inner wall of the cooling shroud 6, and an actuating rod 6061 is fixedly installed on the bottom of the toothed ring 606. A collection hopper 605 is installed through the bottom of the cooling shroud 6. A burner 602 is installed through the top of the preheating pipe 601. A double sleeve 603 is installed through one side of the bottom of the burner 602, and one end of the double sleeve 603 extends to the outer wall of the bead furnace 1. A guide cover 604 is sleeved on the top of the outer side of the preheating pipe 601.

[0046] It should be noted that the bottom of the cooling shroud 6 is provided with a discharge port that connects with the guide shroud 604; a flame stabilizer is installed on the top of the burner 602; the actuating rod 6061 contacts the inner wall of the cooling shroud 6, and the rotating toothed ring 606 drives the actuating rod 6061 to rotate along the inner wall of the cooling shroud 6, actuating the glass microspheres in the cooling shroud 6, so that the glass microspheres are evenly dispersed on the inner wall of the cooling shroud 6, and the glass microspheres are evenly cooled to ensure the quality of the glass microspheres; and the rotating actuating rod 6061 can also actuate the glass microspheres to the discharge port that connects with the guide shroud 604, so that the glass microspheres can be collected through the guide shroud 604.

[0047] The double-pipe 603 consists of a gas pipe and an auxiliary combustion pipe. The gas pipe supplies gas to the burner 602, while the auxiliary combustion pipe supplies auxiliary combustion gas to the inside of the burner 602. The gas mixed with auxiliary combustion gas is sprayed out through the flame stabilizing plate at the top of the burner 602 and ignited by the ignition device of the flame stabilizing plate, so that the gas is fully combusted in the bead shroud 5.

[0048] The spheroidized microspheres are guided into the cooling hood 6 by the guide hood 604, which reduces the falling speed of the spheroidized microspheres and ensures the stability of the quality of the spheroidized microspheres.

[0049] like Figures 9 to 10 As shown, the drive mechanism 4 consists of a drive motor 401, a first transmission gear rod 402, a second transmission gear rod 403, and a spiral conveyor rod 404. A drive gear 4011 is fixedly mounted on the output end of the drive motor 401. The bottom of the drive gear 4011 is fixedly connected to the top of the spiral conveyor rod 404, which extends into the interior of the feed hopper 303. One side of the drive gear 4011 meshes with one end of the first transmission gear rod 402, and the other end of the first transmission gear rod 402 meshes with the top of the second transmission gear rod 403. The bottom end of the second transmission gear rod 403 meshes with a gear ring 606. A mounting bracket 4012 is fixedly mounted on the bottom of the drive motor 401, and the first transmission gear rod 402 is fixedly mounted on the top of the feed hopper 303.

[0050] It should be noted that when the drive motor 401 is powered on, it drives the drive gear 4011 to rotate. The rotating drive gear 4011 drives the bottom spiral conveyor rod 404 to rotate, and also drives the meshing first transmission gear rod 402 to rotate.

[0051] The rotating screw conveyor 404 uniformly feeds the glass powder stored inside the feed hopper 303, preventing the powder from accumulating inside the feed pipe 302;

[0052] The rotating first transmission gear rod 402 drives the meshing second transmission gear rod 403 to rotate, and the rotating second transmission gear rod 403 drives the bottom meshing gear ring 606 to rotate, providing rotational power for the actuating lever 6061.

[0053] like Figures 1 to 7 As shown, one end of the intake pipe 3012 and one end of the compression nozzle 3022 are connected to the output end of the air compressor 103 through pipes;

[0054] It should be noted that the output end of the air compressor 103 is equipped with a three-way pipe, through which the air compressed by the air compressor 103 is delivered to the intake pipe 3012 and the compression nozzle 3022 respectively through the pipe. The design of the intake pipe 3012 provides a smooth surface, which helps the airflow enter the gas manifold 301 smoothly. The compression nozzle 3022, with its special shape and size, can effectively increase the degree of airflow compression and improve the speed and pressure of the airflow.

[0055] like Figures 1 to 4As shown, three support frames 101 are equidistantly installed on the bottom of the outer side of the bead furnace 1. Two of the support frames 101 are fixedly installed with mounting plates 102 on their outer sides, and the air compressor 103 is fixedly installed on the top of the mounting plate 102.

[0056] It should be noted that the air compressor 103 is fixedly installed on the top of the mounting plate 102, which ensures that the beading furnace 1 can remain stable during operation and avoids the center of gravity shifting due to external vibration or internal mechanical movement, thereby improving the safety and operational reliability of the equipment; the three support frames 101 are evenly distributed on the bottom surface of the beading furnace 1, so that the entire equipment can be evenly stressed and prevent the ground below the equipment from being damaged by concentrated load.

[0057] like Figures 2 to 4 As shown, the cooling shroud 6 isolates the bottom of the bead furnace 1 to form a liquid cooling chamber 104. A water inlet valve is installed through one side of the liquid cooling chamber 104, and a water outlet valve is installed through one side of the bottom of the liquid cooling chamber 104.

[0058] It should be noted that the coolant can flow into the liquid cooling chamber 104 through the inlet valve and flow out through the outlet valve, thus realizing the circulation of the coolant; this allows the coolant to flow continuously and circulate to remove the heat from the cooling cover 6.

[0059] like Figures 2 to 4 As shown, the bead-forming furnace 1 consists of a protective outer shell, a heat insulation cotton layer, and an anti-corrosion inner layer, which are distributed from the outside to the inside.

[0060] It should be noted that the protective outer shell is made of carbon steel, which has good corrosion resistance, high strength, and a certain degree of heat resistance. Due to its excellent thermal insulation properties, the outer shell effectively blocks the transmission of high or low temperatures from the external environment to the furnace body, preventing excessive heat loss or the impact of external hot or cold environments on the furnace interior. The insulation layer is made of ceramic fiber cotton. Since this layer is located between the protective outer shell and the anti-corrosion inner layer, and ceramic fiber cotton has strong thermal insulation and heat preservation capabilities, it further enhances the insulation effect, preventing excessive heat loss from the external environment and reducing the possibility of internal heat diffusion. The anti-corrosion inner layer is made of heat-resistant cast stone, which has excellent wear resistance and corrosion resistance, and can withstand high temperatures. Located at the innermost layer, the anti-corrosion inner layer effectively prevents external corrosive gases or liquids from damaging the internal equipment and structure, ensuring the cleanliness of the furnace interior and the long-term stable operation of the equipment.

[0061] like Figures 2 to 4 As shown, the middle section of the bead-forming cover 5 is an arc-shaped cover, and an isolation plate is fixedly installed at the bottom of the bead-forming cover 5, forming a vacuum cavity between the bead-forming cover 5 and the inner wall of the bead-forming furnace 1.

[0062] It should be noted that the arc-shaped cover can better adapt to the material flow during the beading process, promoting the uniform distribution and flow of the material, thus optimizing the material flow. The bottom of the beading cover 5 is fixedly installed with an isolation plate. Due to the presence of the isolation plate, the bottom between the beading cover 5 and the beading furnace 1 can be sealed, forming a vacuum cavity between the beading cover 5 and the beading furnace 1. This can effectively reduce heat loss, improve the thermal efficiency inside the furnace, and thus maintain the temperature stability of beading.

[0063] Based on the explanations and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and alterations to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A bead-forming furnace suitable for preparing high-refractive-index glass microspheres, comprising a bead-forming furnace (1), a dispersion mechanism (3), a driving mechanism (4), a bead-forming shroud (5), and a cooling shroud (6), characterized in that, It also includes a cyclone separator (2) fixedly installed on one side of the bead-forming furnace (1), and the cyclone separator (2) is connected to the bead-forming furnace (1) through a pipe; the bead-forming cover (5) is fixedly installed inside the bead-forming furnace (1); the cooling cover (6) is fixedly installed at the bottom inside the bead-forming furnace (1); A preheating pipe (601) is fixedly installed inside the cooling cover (6). A vortex conveying pipe (6011) is installed through the inner wall of the preheating pipe (601). A vortex vane (6012) is installed on the inner wall of the vortex conveying pipe (6011). The dispersion mechanism (3) is fixedly installed at the bottom of the bead-forming furnace (1). The dispersion mechanism (3) consists of a gas manifold (301), a feed pipe (302), a feed hopper (303), a maintenance pipe (305), a vortex tube (304), and a dispersion chamber (306). The gas manifold (301) is sleeved on the outside of the dispersion chamber (306), and the inner wall of the gas manifold (301) and the inner wall of the dispersion chamber (306) are provided with connecting air inlets (3011). One side of the gas manifold (301) passes through... An air inlet pipe (3012) is installed through the top of the dispersion chamber (306), a vortex pipe (304) is installed through the bottom of the dispersion chamber (306), a feed pipe (302) is installed through the top of the dispersion chamber (306), a high-pressure conveying pipe (3021) is fixedly installed inside the feed pipe (302), a compression nozzle (3022) is fixedly installed at one end of the feed pipe (302), and a feed hopper (303) is fixedly installed at the top of the feed pipe (302). Compressed air is compressed through the compression nozzle (3022) and then transported to the inside of the feed pipe (302). The compressed air entering the inside of the feed pipe (302) transports the glass powder conveyed by the feed hopper (303) to the high-pressure conveying pipe (3021). The compressed air containing glass powder is further compressed through the high-pressure conveying pipe (3021) and then transported to the inside of the dispersion chamber (306). Simultaneously, compressed air is delivered to the gas manifold (301) through the intake pipe (3012); the gas manifold (301) delivers compressed air to the dispersion chamber (306) through the intake hole (3011), forming a high-speed jet airflow. The glass micro powder is rapidly dispersed under the action of the high-speed jet airflow. The dispersed glass micro powder airflow enters the vortex tube (304), and a vortex is formed under the action of the vortex tube (304), further dispersing the glass micro powder particles. The dispersed glass micro powder enters the vortex conveying pipe (6011). When the glass micro powder airflow passes through the vortex plate (6012), it moves along the spiral trajectory under the action of centrifugal force, forming a strong vortex field and prolonging its residence time in the high-temperature zone.

2. The bead-forming furnace according to claim 1, suitable for preparing high-refractive-index glass microspheres, characterized in that: A toothed ring (606) is rotatably installed on the inner wall of the cooling shroud (6), and a lever (6061) is fixedly installed at the bottom of the toothed ring (606). A collection hopper (605) is installed through the bottom of the cooling shroud (6). A burner (602) is installed through the top of the preheating pipe (601), and a double sleeve (603) is installed through one side of the bottom of the burner (602), with one end of the double sleeve (603) extending to the outer wall of the bead furnace (1). A guide cover (604) is sleeved on the top of the outer side of the preheating pipe (601).

3. The bead-forming furnace according to claim 1, suitable for preparing high-refractive-index glass microspheres, characterized in that: The drive mechanism (4) consists of a drive motor (401), a first transmission gear rod (402), a second transmission gear rod (403), and a screw conveyor rod (404). The output end of the drive motor (401) is fixedly equipped with a drive gear (4011). The bottom of the drive gear (4011) is fixedly connected to the top of the screw conveyor rod (404), and the screw conveyor rod (404) extends into the interior of the feed hopper (303). One side of the drive gear (4011) is meshed with one end of the first transmission gear rod (402), and the other end of the first transmission gear rod (402) is meshed with the top of the second transmission gear rod (403). The bottom end of the second transmission gear rod (403) is meshed with a gear ring (606). The bottom of the drive motor (401) is fixedly equipped with a mounting bracket (4012), and the first transmission gear rod (402) is fixedly installed on the top of the feed hopper (303).

4. The bead-forming furnace according to claim 1, suitable for preparing high-refractive-index glass microspheres, characterized in that: One end of the intake pipe (3012) and one end of the compression nozzle (3022) are connected to the output end of the air compressor (103) through pipes.

5. A bead-forming furnace suitable for preparing high-refractive-index glass microspheres according to claim 4, characterized in that: Three support frames (101) are equidistantly installed on the bottom of the outer side of the bead furnace (1), two of which are fixedly mounted with mounting plates (102), and an air compressor (103) is fixedly mounted on the top of the mounting plate (102).

6. The bead-forming furnace according to claim 1, suitable for preparing high-refractive-index glass microspheres, characterized in that: The cooling shroud (6) isolates the bottom of the bead furnace (1) into a liquid cooling chamber (104). A water inlet valve is installed through one side of the liquid cooling chamber (104), and a water outlet valve is installed through one side of the bottom of the liquid cooling chamber (104).

7. A bead-forming furnace suitable for preparing high-refractive-index glass microspheres according to claim 1, characterized in that: The bead-forming furnace (1) consists of a protective outer shell, a heat insulation cotton layer, and an anti-corrosion inner layer, which are distributed from the outside to the inside.

8. A bead-forming furnace suitable for preparing high-refractive-index glass microspheres according to claim 1, characterized in that: The middle section of the bead-forming cover (5) is an arc-shaped cover, and an isolation plate is fixedly installed at the bottom of the bead-forming cover (5). A vacuum cavity is formed between the bead-forming cover (5) and the inner wall of the bead-forming furnace (1).

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