A silica melting furnace

Abstract

The application discloses a silica smelting kiln and belongs to the technical field of industrial kilns. The silica smelting kiln comprises a kiln main body, the inside of the kiln main body is provided with a fire dividing fence, the upper portion of the fire dividing fence is divided into a high-temperature smelting area, a heat preservation area and a cooling area, and the lower portion of the fire dividing fence is a fire supply area; a material conveying track is outwardly mounted to the inside of the kiln main body, a composite fixing assembly is slidably connected to the material conveying track, a silica containing tank is fixed to the composite fixing assembly, three sliding sleeves are slidably connected to the material conveying track, and a rotating wheel is fixedly installed to the outside of the middle sliding sleeve. The silica smelting kiln can solve the problem of local raw material or insufficient smelting caused by traditional static heating, the defects such as internal bubbles and stress cracks of the smelted product are greatly reduced, the optical uniformity and mechanical strength are significantly improved, the heat energy utilization rate is significantly improved, and the energy cost is directly reduced.

Description

Technical Field

[0001] This invention relates to the field of industrial kiln technology, and more specifically, to a kiln for melting silica. Background Technology

[0002] A silica melting furnace is a key thermal equipment specifically designed to melt high-purity silica (such as quartz sand) at ultra-high temperatures to produce high-end materials such as quartz glass, optical glass, special ceramics, and optical fiber preforms. Due to silica's extremely high melting point (approximately 1723℃) and its high melt viscosity and tendency to crystallize, this type of furnace must be capable of maintaining a stable temperature above 1800℃ for extended periods. Its core structure typically includes: a melting chamber constructed of high-performance refractory materials or a water-cooled copper jacket; a high-efficiency electric heating system (such as silicon molybdenum rods or graphite electrodes) or an oxyhydrogen flame combustion system; and a precise temperature and atmosphere control system. During operation, the raw materials melt, homogenize, and clarify in the high-temperature zone within the furnace, ultimately forming the desired products through a bottom outlet or a drawing process.

[0003] The main types of kilns include large-scale electric melting furnaces for continuous production and single-crucible vacuum resistance furnaces for preparing high-purity products. These kilns are indispensable in fields such as semiconductors, optical communications, and aerospace, and their technology directly affects the purity, uniformity, and performance of the final products.

[0004] Currently, in the common use of silica melting furnaces, containers filled with silica crystals are placed into the furnace and directly melted at high temperatures. During this process, the containers filled with silica crystals generally do not move. This can easily lead to uneven heating of the silica crystals, which may result in raw materials or slow melting, reducing the efficiency of silica melting and increasing the energy cost of the melting operation.

[0005] Therefore, in view of this, the existing structure is studied and improved to provide a furnace for melting silica, in order to achieve a more practical purpose. Summary of the Invention

[0006] 1. Technical problems to be solved

[0007] To address the problems existing in the prior art, the present invention aims to provide a furnace for melting silica, which can solve the problem of local raw material or insufficient melting caused by traditional static heating. The defects such as internal bubbles and stress cracks in the molten product are greatly reduced, the optical uniformity and mechanical strength are significantly improved, and the thermal energy utilization rate is significantly increased, directly reducing energy costs.

[0008] 2. Technical Solution

[0009] To solve the above problems, the present invention adopts the following technical solution.

[0010] A furnace for melting silica includes a furnace body, and a fire-dividing grid is provided inside the furnace body. The upper part of the fire-dividing grid is divided into a high-temperature melting zone, a heat preservation zone and a cooling zone, and the lower part of the fire-dividing grid is a fire supply zone.

[0011] The kiln body has a material conveying track installed from the inside out. A composite fixing component is slidably connected to the material conveying track. A silica container is fixed on the composite fixing component. Three sliding sleeves are slidably connected to the material conveying track. A wheel is fixedly installed on the outside of the middle sliding sleeve.

[0012] The composite fixing assembly includes a left slip ring group and a right slip ring group. The two ends of the left slip ring group are respectively mounted on two other slip sleeves via bearings. The right slip ring group is slidably connected to the corresponding position of the material conveying track. Two semi-annular lower sleeves are fixedly connected between the left slip ring group and the right slip ring group. Each semi-annular lower sleeve is hinged with a semi-annular upper sleeve. The semi-annular upper sleeve and the semi-annular lower sleeve are combined to form a complete retaining ring structure. A plug is inserted between the two semi-annular upper sleeves, and the semi-annular upper sleeve and the semi-annular lower sleeve are locked together by the plug.

[0013] Furthermore, a gate is fixedly installed at the top of the kiln body, a hydraulic pump is fixedly installed at the top of the gate, and a heat-insulating gate is installed at the output end of the hydraulic pump.

[0014] Furthermore, the number of gates is two, and the two gates are arranged in parallel;

[0015] The number of heat insulation gates is two, and the two heat insulation gates are arranged in parallel. One heat insulation gate separates the high-temperature melting zone and the heat preservation zone, and the other heat insulation gate separates the heat preservation zone and the cooling zone.

[0016] Furthermore, the material conveying track includes a slide rail and a snowflake-shaped rail, which are arranged parallel to each other and have their central axes at the same height;

[0017] All three sliding sleeves are slidably connected to the snowflake-shaped track, and the right sliding ring group is slidably connected to the slide rod track.

[0018] Furthermore, both the left slip ring assembly and the right slip ring assembly consist of small slip rings and connecting rods that connect the small slip rings;

[0019] Two baffles are fixedly installed in the middle of the connecting rod belonging to the left slip ring group, and the two sides of the rotating wheel respectively contact the side of one baffle.

[0020] Furthermore, a large motor is fixedly installed on the outside of the kiln body, and the output end of the large motor is connected to the snowflake-shaped track transmission via a coupling.

[0021] Furthermore, a hook-shaped docking workpiece is fixedly installed at the end of the semi-annular upper ferrule, and the hook-shaped docking workpiece is perpendicular to the semi-annular upper ferrule.

[0022] Furthermore, the straight section of the hook-shaped workpiece is provided with a locking hole, which is used to engage with the insertion rod.

[0023] Furthermore, a rod head is fixedly installed at one end of the insertion rod, and four through holes are provided on the rod head.

[0024] Furthermore, several toothed plates are fixedly installed on the outer side of the middle position of the silica container, and the several toothed plates are evenly distributed in a ring.

[0025] The rotating wheel is connected to the silica container via a toothed plate.

[0026] Both ends of the silica container are fixedly provided with end clips, and the two end clips are respectively engaged with the corresponding semi-annular lower sleeves.

[0027] One of the end fittings is fixedly equipped with a material inlet / outlet guide, which faces the interior of the kiln body.

[0028] Two hooks are fixedly installed on the other end fitting, with the hooks facing the interior of the kiln body.

[0029] 3. Beneficial Effects

[0030] Compared with the prior art, the advantages of this invention are:

[0031] ① In this solution, during the silica melting process, the silica tank rotates continuously, causing the silica raw material inside to tumble constantly at high temperatures. This completely solves the problem of localized raw material or insufficient melting caused by traditional static heating. The resulting molten product exhibits a significant reduction in internal defects such as bubbles and stress cracks, and a marked improvement in optical uniformity and mechanical strength.

[0032] ② This solution, through a zoned design of high-temperature melting, heat preservation, and cooling, combined with the flexible control of the heat insulation gate, allows heat from the high-temperature zone to be reused in the heat preservation zone, reducing heat loss. Compared to the single heating mode of traditional kilns, the thermal energy utilization rate is significantly improved, directly reducing energy costs. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the kiln used for silicon dioxide melting in this invention;

[0034] Figure 2 This is a schematic diagram of the internal structure of the kiln body in this invention;

[0035] Figure 3This is a schematic diagram of the planar structure of the kiln used for silicon dioxide melting in this invention;

[0036] Figure 4 This is a schematic diagram of the composite fixing component and the silica container in this invention;

[0037] Figure 5 This is a schematic diagram of the composite fixing component in this invention when it is opened;

[0038] Figure 6 This is a three-dimensional structural diagram of the silica container in this invention.

[0039] Explanation of the labels in the diagram:

[0040] 1. Kiln body;

[0041] 101. Fire distribution grille; 102. High-temperature melting zone; 103. Insulation zone; 104. Cooling zone; 105. Fire supply zone; 106. Gate; 107. Hydraulic pump; 108. Insulated gate; 109. Large motor;

[0042] 2. Material conveying track; 201. Slide rail; 202. Snowflake-shaped track;

[0043] 3. Composite fixing components;

[0044] 301, Left slip ring assembly; 3011, Small slip ring; 3012, Connecting rod; 3013, Stop plate;

[0045] 302. Right slip ring assembly; 303. Semi-circular lower retaining sleeve;

[0046] 304, semi-circular upper ferrule; 3041, hook-shaped butt joint workpiece; 3042, ferrule hole;

[0047] 305, Insert rod; 3051, Rod head; 3052, Through hole;

[0048] 4. Silica container; 401. Toothed plate; 402. End clamp; 403. Inlet / outlet guide; 404. Hook ring;

[0049] 5. Sliding sleeve;

[0050] 6. Rotating wheel. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0052] Example 1:

[0053] Please see Figure 1 - Figure 6 A furnace for melting silica includes a furnace body 1. The furnace body 1 has a fire-dividing grid 101 inside. The upper part of the fire-dividing grid 101 is divided into a high-temperature melting zone 102, a heat preservation zone 103 and a cooling zone 104. The lower part of the fire-dividing grid 101 is a fire supply zone 105.

[0054] This structure effectively guides and distributes the flame, ensuring a stable and uniform heat source for the high-temperature melting zone 102, providing an ideal environment for the full melting of silica. The setting of the heat preservation zone 103 and the cooling zone 104 allows the molten silica to be slowly cooled and shaped according to the preset process curve, effectively reducing the internal stress caused by sudden temperature changes, thereby significantly reducing the risk of internal defects, bubbles, and cracking in products such as quartz glass, and ultimately improving the optical uniformity, mechanical strength, and yield of the product.

[0055] Inside the kiln body 1, a material conveying track 2 is installed outward. A composite fixing component 3 is slidably connected to the material conveying track 2. A silica container 4 is fixed on the composite fixing component 3. Three sliding sleeves 5 are slidably connected to the material conveying track 2. A rotating wheel 6 is fixedly installed on the outside of the middle sliding sleeve 5.

[0056] By setting up a conveying track 2 that passes through the kiln body 1, along with a composite fixing component 3 and a silica container 4 that can slide on it, a conveying system is constructed that runs through the entire process of melting, heat preservation, and cooling. The heat emitted from the high-temperature melting zone 102 can be used by the heat preservation zone 103, improving heat utilization efficiency.

[0057] The composite fixing assembly 3 includes a left slip ring assembly 301 and a right slip ring assembly 302. The two ends of the left slip ring assembly 301 are respectively mounted on two other slip sleeves 5 via bearings. The right slip ring assembly 302 is slidably connected to the corresponding position of the material conveying track 2. Two semi-annular lower retaining sleeves 303 are fixedly connected between the left slip ring assembly 301 and the right slip ring assembly 302. Each semi-annular lower retaining sleeve 303 is hinged with a semi-annular upper retaining sleeve 304. The semi-annular upper retaining sleeve 304 and the semi-annular lower retaining sleeve 303 are combined to form a complete retaining ring structure. A plug rod 305 is inserted between the two semi-annular upper retaining sleeves 304, and the semi-annular upper retaining sleeve 304 and the semi-annular lower retaining sleeve 303 are locked together by the plug rod 305.

[0058] The composite fixing assembly 3 employs a design that combines a left slip ring assembly 301, a right slip ring assembly 302, a semi-annular clamping structure, and a plug rod 305, making the installation, fixing, and disassembly of the silica container 4 simple and quick. The plug rod 305 locks in place, ensuring the stability of the silica container 4 connection under high temperature and motion conditions, preventing it from loosening or falling off.

[0059] The rotating wheel 6 installed on the middle sliding sleeve 5 provides a drive interface for the rotation of the silica container 4 that may be realized later. The rotation helps the material inside the container to be heated more evenly, avoiding local overheating or insufficient melting.

[0060] Example 2:

[0061] Based on the above embodiment 1, further description is provided.

[0062] See Figure 1 , Figure 2 , Figure 3 Specifically, a gate 106 is fixedly installed at the top of the kiln body 1, a hydraulic pump 107 is fixedly installed at the top of the gate 106, and a heat insulation gate 108 is installed at the output end of the hydraulic pump 107.

[0063] A heat-insulating gate 108 driven by a hydraulic pump 107 provides a means to actively and quickly separate or connect different temperature zones. When precise temperature control of each zone is required, the heat-insulating gate 108 can be lowered to form a physical barrier, effectively blocking heat radiation and convection between different temperature zones and preventing excessive heat from the high-temperature molten zone 102 from entering the insulation zone 103 or cooling zone 104. This allows for more independent and precise control of the temperature field in each zone, resulting in extremely high process flexibility.

[0064] Hydraulic drive offers advantages over manual or mechanical gates, including greater thrust, smoother movement, more precise control, and faster response. It can be easily integrated into automatic control systems, automatically opening and closing based on preset process programs or real-time temperature feedback, thus improving the automation level of the equipment and the consistency of process control.

[0065] Specifically, there are two gates 106, and the two gates 106 are set in parallel.

[0066] Two heat insulation gates 108 are provided, and the two heat insulation gates 108 are arranged in parallel. One heat insulation gate 108 separates the high-temperature melting zone 102 and the heat preservation zone 103, and the other heat insulation gate 108 separates the heat preservation zone 103 and the cooling zone 104.

[0067] Two parallel gates 106 and heat-insulating gates 108 are provided, located between the high-temperature melting zone 102 and the heat preservation zone 103, and between the heat preservation zone 103 and the cooling zone 104, respectively. This configuration allows for independent isolation between each of the three core process zones: melting, heat preservation, and cooling.

[0068] Process engineers can independently adjust the temperature, atmosphere, and holding time of each zone according to the specific requirements of different products. For example, strong heat preservation can be carried out immediately after melting to eliminate bubbles, or gradient cooling can be carried out to reduce stress. This achieves refined and modular control of process parameters, greatly expanding the process adaptability and product range of the kiln.

[0069] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 Specifically, the material conveying track 2 includes a slide rail 201 and a snowflake-shaped track 202. The slide rail 201 and the snowflake-shaped track 202 are arranged parallel to each other, and their central axes are at the same height.

[0070] The system employs a double-rail design with parallel sliding rod rail 201 and snowflake-shaped rail 202. The sliding rod rail 201 has a simple structure and provides stable linear sliding guidance for the right slip ring assembly 302. The snowflake-shaped rail 202 not only withstands loads, but its special cross-sectional shape also effectively transmits torque and prevents slippage.

[0071] All three sliding sleeves 5 are slidably connected to the snowflake-shaped track 202, and the right sliding ring group 302 is slidably connected to the slide bar track 201.

[0072] The three sliding sleeves 5 cooperate with the snowflake-shaped track 202 to provide anti-torsional stable support for the entire composite fixing component 3. Together with the sliding rod track 201 to restrict the sliding of the composite fixing component 3, it ensures that the composite fixing component 3 will not deflect or jam when moving linearly on the track, and runs smoothly.

[0073] Secondly, the sliding sleeve 5 is distributed on the snowflake-shaped track 202, which has strong torsional resistance, and the right sliding ring group 302, which may only require linear guidance, is connected to the simple sliding rod track 201. This design rationally distributes the load and function, making the overall structure more reliable, reducing motion resistance, and extending the track's service life.

[0074] Specifically, both the left slip ring assembly 301 and the right slip ring assembly 302 consist of a small slip ring 3011 and a connecting rod 3012 that connects the small slip ring 3011.

[0075] The left slip ring assembly 301 and the right slip ring assembly 302 are designed as standardized modules consisting of small slip rings 3011 and connecting rods 3012, which simplifies the manufacturing and assembly process.

[0076] Two baffles 3013 are fixedly installed in the middle of the connecting rod 3012 belonging to the left slip ring group 301, and the two sides of the rotating wheel 6 respectively contact the side of one baffle 3013.

[0077] Two baffles 3013 are fixedly installed in the middle of the connecting rod 3012 of the left slip ring assembly 301. The rotating wheel 6 is clamped between the two baffles 3013. When the left slip ring assembly 301 moves, the baffles 3013 will push the rotating wheel 6 to move synchronously.

[0078] When the external drive mechanism drives the rotating wheel 6 to rotate, it controls the sliding sleeve 5 to rotate. The rotating wheel 6 rotates synchronously with the sliding sleeve 5, thereby driving the silica container 4 to rotate. This contact transmission structure is simple and direct, avoiding problems such as lubrication failure and thermal expansion jamming that may occur in complex gear meshing or chain drives under high temperature environments, and is reliable in operation.

[0079] Specifically, a large motor 109 is fixedly installed on the outside of the kiln body 1, and the output end of the large motor 109 is connected to the snowflake-shaped track 202 through a coupling.

[0080] The snowflake-shaped track 202 is directly driven to rotate by a large motor 109. At this time, the sliding sleeve 5 is controlled to rotate synchronously through cooperation with the sliding sleeve 5. Since the rotating wheel 6 is fixedly installed on the outside of the middle sliding sleeve 5, the rotating wheel 6 will rotate synchronously. The two ends of the left sliding ring group 301 are respectively installed on the other two sliding sleeves 5 through bearings. Therefore, the left sliding ring group 301 will not rotate. In this way, the rotation can be transmitted to the silica container 4 along the rotating wheel 6, so that the silica container 4 can fully contact the fire supply zone 105 when rotating, improve the melting efficiency, and improve the heat utilization rate.

[0081] See Figure 4 , Figure 5 Specifically, a hook-shaped workpiece 3041 is fixedly installed at the end of the semi-annular upper ferrule 304, and the hook-shaped workpiece 3041 is perpendicular to the semi-annular upper ferrule 304.

[0082] When the semi-annular upper retaining sleeve 304 and the semi-annular lower retaining sleeve 303 are engaged, one end of the hook-shaped mating workpiece 3041 will be below the semi-annular lower retaining sleeve 303. At this time, the insert rod 305 passes through the corresponding retaining hole 3042, thus forming a combination lock between the semi-annular upper retaining sleeve 304 and the semi-annular lower retaining sleeve 303. This locking method makes the operation of opening and closing the retaining ring extremely fast and simple. Especially in situations where frequent loading and unloading of containers is required, it can significantly improve work efficiency and reduce labor intensity.

[0083] Specifically, the straight section of the hook-shaped workpiece 3041 has a locking hole 3042, which is engaged with the insertion rod 305.

[0084] When the upper semi-circular retaining sleeve 304 and the lower semi-circular retaining sleeve 303 are engaged, the two retaining holes 3042 automatically align, providing precise insertion guidance for the insertion rod 305 and ensuring smooth insertion. The tight fit between the retaining holes 3042 and the insertion rod 305 ensures that the connection point is stable after locking, guaranteeing the tight closure of the upper semi-circular retaining sleeve 304 and the lower semi-circular retaining sleeve 303. This ensures that the silica container 4 is firmly fixed and will not shift or loosen during transport or rotation, ensuring high safety.

[0085] See Figure 4 , Figure 5 Specifically, one end of the insertion rod 305 is fixedly installed with a rod head 3051, and four through holes 3052 are opened on the rod head 3051.

[0086] A rod head 3051 with a through hole 3052 is provided at one end of the insertion rod 305. After the insertion rod 305 is inserted, a hook-shaped tool can be inserted into the through hole 3052. This facilitates the pushing in or pulling out of the entire composite fixing assembly 3 and the silica container 4, taking into account both safety and ease of operation.

[0087] See Figure 4 , Figure 5 , Figure 6 Specifically, several toothed plates 401 are fixedly installed on the outer side of the middle position of the silica container 4, and the toothed plates 401 are evenly distributed in a ring.

[0088] The rotating wheel 6 is connected to the silica container 4 via the toothed plate 401.

[0089] When the rotor 6 rotates, it drives the entire silica container 4 to rotate at a constant speed around its axis via the toothed plate 401. This rotation causes the silica material inside the container to tumble continuously during the melting process, ensuring that all parts are heated evenly and effectively avoiding local overheating and uneven melting caused by static heating, thereby significantly improving the melt quality and product consistency.

[0090] Both ends of the silica container 4 are fixedly provided with end clips 402, and the two end clips 402 are respectively engaged with the corresponding semi-annular lower sleeves 303.

[0091] One of the end clips 402 is fixedly provided with an inlet / outlet guide 403, which faces the interior of the kiln body 1.

[0092] Two hooks 404 are fixedly installed on the other end clip 402, with the hooks 404 facing the inside of the kiln body 1.

[0093] The end clips 402 at both ends of the silica container 4 are engaged with the semi-annular lower sleeve 303, which realizes the axial and circumferential positioning of the container and prevents it from moving horizontally.

[0094] The inlet / outlet guide 403 at one end facilitates the filling of materials and the pouring of molten products. Furthermore, the funnel-shaped inlet / outlet guide 403 prevents molten silica from leaking out when the silica container 4 rotates. Additionally, the design of the inlet / outlet guide 403 facing inwards while the hook 404 faces outwards allows for easy connection to external robotic arms, hooks, etc., enabling automated feeding, container removal, or pouring operations, further enhancing the automation and efficiency of the production line.

[0095] Working principle:

[0096] The furnace for melting silica achieves efficient and uniform melting of silica through the synergistic effect of zoned temperature control, dynamic conveying, and rotary heating. The specific workflow is as follows:

[0097] Loading and securing:

[0098] The silica container 4, filled with silica raw material, is placed on the semi-annular lower sleeve 303 of the composite fixing component 3. The semi-annular upper sleeve 304 is closed, and the insert rod 305 is inserted to lock it, forming a stable retaining ring structure. The end clips 402 at both ends of the silica container 4 are tightly fitted with the sleeves to prevent the container from moving.

[0099] Transport and partitioning:

[0100] By connecting the hook ring 404 with an external robotic arm, hook rod, etc., the composite fixing component 3 and the silica container 4 can be pushed into or pulled out of the kiln body 1. When pushed in, the silica container 4 enters the cooling zone 104, the heat preservation zone 103 and the high-temperature melting zone 102 of the kiln body 1 in sequence. The heat preservation zone 103 can utilize the heat from the previous melting to remove the residual heat of the silica crystals. The cooling zone 104 can protect personnel outside the kiln body 1 from the high temperature. The sliding rail 201 and the snowflake-shaped rail 202 are connected in parallel to ensure smooth and deflection-free transport.

[0101] Rotary heating and temperature control:

[0102] During the conveying process, a large motor 109 drives the rotating wheel 6 to rotate via a snowflake-shaped track 202. The rotating wheel 6 drives the silica container 4 to rotate at a uniform speed by engaging with the toothed plate 401 on the surface of the container. The rotation ensures that the silica material inside the container is heated evenly, avoiding local overheating or insufficient melting.

[0103] The kiln interior is divided into a fire supply zone 105 by a fire distribution grid 101, which provides a heat source. The high-temperature melting zone 102 is heated centrally. The heat insulation gate 108 controlled by the hydraulic pump 107 can quickly separate each temperature zone, achieving precise independent temperature control.

[0104] Automation and material discharge:

[0105] The inlet and outlet ports 403 of the silica container 4 face inwards to facilitate feeding and removal of the molten product; the hook 404 is designed to be linked with an external robotic arm to achieve automated operation. When pulled out, the silica container 4 quickly passes through the insulation zone 103 and the cooling zone 104, significantly improving the efficiency of continuous operation.

[0106] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A silica melting furnace comprising a furnace main body (1), characterized by: The inside of the kiln body (1) is provided with a fire dividing fence (101), the upper part of the fire dividing fence (101) is divided into a high-temperature melting area (102), a heat preservation area (103) and a cooling area (104), and the lower part of the fire dividing fence (101) is a fire supply area (105); The inside of the kiln body (1) is outwardly provided with a material conveying track (2), the material conveying track (2) is slidably connected with a composite fixing assembly (3), the composite fixing assembly (3) is fixedly connected with a silicon dioxide containing tank (4), and the material conveying track (2) is slidably connected with three sliding sleeves (5), and the outer part of the middle sliding sleeve (5) is fixedly connected with a rotating wheel (6); The composite fixing assembly (3) comprises a left sliding ring group (301) and a right sliding ring group (302), the two ends of the left sliding ring group (301) are respectively connected with the other two sliding sleeves (5) through bearings, the right sliding ring group (302) is slidably connected with the corresponding position of the material conveying track (2), and the left sliding ring group (301) and the right sliding ring group (302) are fixedly connected with two half-ring lower clamping sleeves (303), each half-ring lower clamping sleeve (303) is hingedly connected with a half-ring upper clamping sleeve (304), the half-ring upper clamping sleeve (304) and the half-ring lower clamping sleeve (303) are combined to form a complete clamping ring structure, a plug rod (305) is inserted between the two half-ring upper clamping sleeves (304), and the half-ring upper clamping sleeve (304) and the half-ring lower clamping sleeve (303) are locked through the plug rod (305); The material conveying track (2) comprises a sliding rod track (201) and a snowflake-shaped track (202), the sliding rod track (201) and the snowflake-shaped track (202) are arranged in parallel, and the central axes of the two are at the same height; The three sliding sleeves (5) are slidably connected with the snowflake-shaped track (202), and the right sliding ring group (302) is slidably connected with the sliding rod track (201).

2. A kiln for the fusion of silica according to claim 1, characterized in that: The top end of the kiln body (1) is fixedly connected with a gate (106), the top end of the gate (106) is fixedly connected with a hydraulic pump (107), and the output end of the hydraulic pump (107) is connected with a heat insulation gate plate (108).

3. A kiln for the fusion of silica according to claim 2, characterized in that: The number of the gates (106) is two, and the two gates (106) are arranged in parallel; The number of the heat insulation gate plates (108) is two, and the two heat insulation gate plates (108) are arranged in parallel, one of the heat insulation gate plates (108) separates the high-temperature melting area (102) and the heat preservation area (103), and the other heat insulation gate plate (108) separates the heat preservation area (103) and the cooling area (104).

4. A kiln for the fusion of silica according to claim 1, characterized in that: The left sliding ring group (301) and the right sliding ring group (302) are composed of a small sliding ring (3011) and a connecting rod (3012) connected with the small sliding ring (3011); The middle part of the connecting rod (3012) of the left sliding ring group (301) is fixedly connected with two baffle plates (3013), and the two sides of the rotating wheel (6) are respectively in contact with the side surfaces of the baffle plates (3013).

5. A kiln for the fusion of silica according to claim 1, characterized in that: The large motor (109) is fixedly installed outside the kiln body (1), and an output end of the large motor (109) is in transmission connection with the snowflake-shaped track (202) through a shaft coupling.

6. A kiln for the fusion of silica according to claim 1, characterized in that: The end of the semi-annular upper clamping sleeve (304) is fixedly installed with a hook-shaped butt joint workpiece (3041), and the hook-shaped butt joint workpiece (3041) is vertically distributed with the semi-annular upper clamping sleeve (304).

7. A kiln for the fusion of silica according to claim 6, characterized in that: The straight section of the hook-shaped butt joint workpiece (3041) is provided with a clamping hole (3042), and the clamping hole (3042) is in plug-in connection with the plug rod (305).

8. A kiln for the fusion of silica according to claim 1, characterized in that: One end of the plug rod (305) is fixedly installed with a rod head (3051), and four through holes (3052) are formed in the rod head (3051).

9. A kiln for the fusion of silica according to claim 1, characterized in that: A plurality of toothed plates (401) are fixedly installed outside the middle position of the silica containing tank (4), and the plurality of toothed plates (401) are annularly and uniformly distributed; The rotating wheel (6) is in transmission connection with the silica containing tank (4) through the toothed plate (401); Both ends of the silica containing tank (4) are fixedly provided with end clamping pieces (402), and the two end clamping pieces (402) are respectively clamped with corresponding semi-annular lower clamping sleeves (303); One of the end clamping pieces (402) is fixedly provided with an inlet and outlet guide opening (403), and the inlet and outlet guide opening (403) faces the inside of the kiln body (1); The other end clamping piece (402) is fixedly provided with two hook links (404), and the hook links (404) face the inside of the kiln body (1).

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