A device for removing gas-liquid inclusions in high-purity quartz sand

Abstract

The application relates to the technical field of quartz sand treatment, and discloses a device for removing gas-liquid inclusions in high-purity quartz sand, which comprises a shell and inert gas input pipes, inert gas output pipes, vacuum pipes and plasma generators arranged on the outside, a feed pipe is vertically inserted into the shell, a guide pipe is rotatably arranged at the bottom of the feed pipe, and a discharging pipe is rotatably arranged at the tail end of the guide pipe. The vortex-shaped linear guide rail guides the radial movement of the discharging pipe, and the spacing change between the linkage conical through hole and the adjusting plate forms a differential discharging mode of less discharging on the inside and more discharging on the outside. This design precisely adapts to the speed difference between the inside and the outside during the operation of the rotating mechanism, avoids the problems of excessive accumulation of the inside material and insufficient amount of the outside material caused by the traditional uniform discharging from the source, and through the synergistic effect of the mechanical structure, ensures that the quartz sand forms a material layer with uniform thickness in the treatment area, so that each material can fully accept the plasma energy effect, and the gas-liquid inclusions can be uniformly broken.

Description

Technical Field

[0001] This invention belongs to the field of quartz sand treatment technology, specifically, it relates to a device for removing gas-liquid inclusions from high-purity quartz sand. Background Technology

[0002] High-purity quartz sand is a fundamental raw material for core products such as semiconductor wafers, photovoltaic cells, and high-precision optical components. The content of gas-liquid inclusions within it directly determines the performance of downstream products. During high-temperature processing, the expansion and rupture of gas-liquid inclusions due to heat can generate bubbles and microcracks, leading to a decrease in device yield of more than 30%. Therefore, removing gas-liquid inclusions is the core process in the purification of high-purity quartz sand.

[0003] Existing plasma bombardment methods mostly rely on rotary processing devices to achieve full contact between materials and energy. Through the rotation of the cavity or conveying mechanism, the quartz sand is dispersed and continuously subjected to high temperature, plasma and other energy, causing the inclusions to break, and then the gas and liquid impurities are extracted by negative pressure.

[0004] However, in actual feeding, there is a speed difference between the inner and outer sides of the rotating mechanism: the inner side, being closer to the center of rotation, moves slowly, resulting in slow material movement and a longer residence time; the outer side, being farther from the center of rotation, moves quickly, causing the material to rapidly pass through the processing area with a shorter residence time. If a traditional uniform feeding mode is used, i.e., material is uniformly fed radially along the rotating mechanism, this speed difference will directly lead to uneven material distribution on the outer and inner sides, affecting the subsequent processing quality and efficiency.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0007] A device for removing gas-liquid inclusions from high-purity quartz sand includes a housing and an inert gas input pipe, an inert gas output pipe, a vacuum tube, and a plasma generator disposed on the outside.

[0008] A material conveying pipe is vertically inserted inside the outer shell, a material guide pipe is rotatably installed at the bottom of the material conveying pipe, and a material discharge pipe is rotatably installed at the end of the material guide pipe;

[0009] A base is rotatably mounted inside the outer shell. A guide rod is installed on the side wall of the base, and a connecting frame is slidably mounted on the guide rod. The connecting frame is connected to the feeding pipe. The base is connected to the conveying pipe, and the base is used to drive the feeding pipe to rotate and change the feeding position.

[0010] A positioning rod is installed on the connecting frame. The end of the positioning rod is slidably connected to a vortex guide rail that is in a fixed state. The vortex guide rail is used to guide the feeding tube to move towards the center of rotation and change the feeding position.

[0011] A top rod is installed on the base, and an adjustment plate is installed on the top of the top rod. The adjustment plate is slidably disposed in a conical through hole opened inside the feed pipe. As the feed pipe moves toward the center, it is driven to move upward through the guide pipe, and the distance between the conical through hole in the feed pipe and the adjustment plate becomes smaller, so that the amount of material fed synchronously decreases.

[0012] In a preferred embodiment of the present invention, the bottom of the outer shell is provided with three support legs, the top of the three support legs is mounted with an mounting plate, the side wall of the outer shell is mounted with a base plate, and the base plate is attached to the mounting plate. The base plate and the mounting plate are connected by bolts, and the bottom of the support legs is provided with reinforcing ribs in a cross state. The bottom of the support legs is provided with anti-slip pads.

[0013] In a preferred embodiment of the present invention, a cover plate is installed on the top of the outer shell, a sealing gasket is provided between the bottom of the cover plate and the outer shell, an observation window is installed on the outer shell to facilitate observation of the internal situation, the bottom of the cover plate is connected to the spiral guide rail, and the center of the cover plate is movably connected to the material conveying pipe.

[0014] In a preferred embodiment of the present invention, the inert gas input pipe is located above the inert gas output pipe, and the inert gas output pipe and the inert gas input pipe are on the same vertical line. The inert gas input pipe is connected to the gas conveying unit, and the inert gas output pipe is connected to the gas recovery unit. The vacuum pipe is connected to the vacuum suction unit. Valves are installed on the inert gas input pipe, the inert gas output pipe, the vacuum pipe, and the conveying pipe.

[0015] In a preferred embodiment of the present invention, a guide hopper is installed at the top of the conveying pipe, the guide hopper is located above the cover plate, the guide hopper is conical, a sealing cover is provided on the outer side wall of the guide hopper, a sealing plate is installed at the bottom of the sealing cover, and the sealing plate is connected to the surface of the cover plate by bolts.

[0016] In a preferred embodiment of the present invention, a first flexible hose is installed at the bottom of the conveying pipe, the end of the first flexible hose is connected to the guide pipe, the guide pipe is inclined, and a second flexible hose is installed at the bottom of the guide pipe, the end of the second flexible hose is connected to the discharge pipe.

[0017] In a preferred embodiment of the present invention, a drive motor is installed at the bottom of the housing, and an output shaft is installed at the output end of the drive motor. The end of the output shaft extends through the housing and is connected to the bottom of the base.

[0018] In a preferred embodiment of the present invention, a sliding plate is installed at the end of the guide rod, a sliding groove is installed on the inner side wall of the outer shell, the sliding groove is slidably connected to the surface of the sliding plate, a limiting plate is inserted into the guide rod and the end of the limiting plate is installed on the connecting frame, a limiting spring is sleeved on the side wall of the guide rod, one end of the limiting spring is snapped onto the base, and the other end of the limiting spring is snapped onto the limiting plate.

[0019] In a preferred embodiment of the present invention, a positioning frame is installed on the top of the connecting frame, a positioning rod is installed on the positioning frame, a slider is installed at the end of the positioning rod, and the surface of the slider is slidably connected to the surface of the spiral guide rail.

[0020] In a preferred embodiment of the present invention, a limiting rod is installed on the base, a positioning plate is installed on the top of the limiting rod, a positioning seat is slidably provided on the limiting rod, the positioning seat is installed on the side wall of the conveying pipe, a positioning spring is sleeved on the side wall of the limiting rod, one end of the positioning spring is engaged with the positioning plate, and the other end of the positioning spring is engaged with the positioning seat.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] This invention utilizes a vortex-guided structure to guide the radial movement of the feed pipe, simultaneously adjusting the spacing between the conical through-hole and the regulating plate to create a differentiated feeding method with less material on the inner side and more on the outer side. This design precisely adapts to the speed difference between the inner and outer sides during rotation, thus solving the problem of excessive material accumulation due to slower speed on the inner side and insufficient material due to faster speed on the outer side in traditional uniform feeding methods. Furthermore, through the synergistic effect of the mechanical structure, the radial movement of the feed pipe and the dynamic adjustment of the feeding amount are linked, ensuring that a uniform thickness of quartz sand is formed in the processing area, avoiding localized areas of excessively thick or thin material. This uniform material layer distribution ensures that every part of the quartz sand can fully receive the plasma energy, preventing insufficient energy penetration due to material accumulation or insufficient energy utilization due to thin material. This guarantees the uniform rupture of gas-liquid inclusions within the quartz sand, improving processing quality and efficiency.

[0023] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0024] In the attached diagram:

[0025] Figure 1 A three-dimensional diagram of a device for removing gas-liquid inclusions from high-purity quartz sand;

[0026] Figure 2A bottom view of a device for removing gas-liquid inclusions from high-purity quartz sand;

[0027] Figure 3 A schematic diagram of the internal structure of a device for removing gas-liquid inclusions from high-purity quartz sand. Figure 1 ;

[0028] Figure 4 A device for removing gas-liquid inclusions from high-purity quartz sand Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 A schematic diagram of the internal structure of a device for removing gas-liquid inclusions from high-purity quartz sand. Figure 2 ;

[0030] Figure 6 Structure of the feed pipe of a device for removing gas-liquid inclusions from high-purity quartz sand Figure 1 ;

[0031] Figure 7 Structure of the feed pipe of a device for removing gas-liquid inclusions from high-purity quartz sand Figure 2 ;

[0032] Figure 8 This is a cross-sectional view of the feed pipe of a device for removing gas-liquid inclusions from high-purity quartz sand.

[0033] In the picture:

[0034] 1. Outer shell; 11. Support leg; 111. Reinforcing rib; 112. Mounting plate; 113. Base plate; 12. Cover plate; 121. Observation window; 13. Inert gas inlet pipe; 131. Inert gas outlet pipe; 14. Vacuum tube; 15. Plasma generator;

[0035] 2. Conveying pipe; 21. Guide hopper; 211. Sealing cover; 212. Sealing plate; 22. Guide pipe; 221. First flexible hose; 222. Second flexible hose; 23. Discharge pipe;

[0036] 3. Base; 31. Drive motor; 311. Output shaft; 32. Guide rod; 321. Slide plate; 322. Slide groove; 33. Connecting frame; 331. Limiting plate; 332. Limiting spring; 34. Spiral guide rail; 341. Slider; 342. Positioning rod; 343. Positioning frame; 35. Limiting rod; 351. Positioning plate; 352. Positioning seat; 353. Positioning spring; 36. Top rod; 361. Adjusting plate; 362. Tapered through hole. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0038] Example 1, such as Figures 1 to 8 As shown, a device for removing gas-liquid inclusions from high-purity quartz sand includes a housing 1 and an inert gas input pipe 13, an inert gas output pipe 131, a vacuum tube 14, and a plasma generator 15 disposed on the outside.

[0039] Inside the outer casing 1, a material conveying pipe 2 is vertically inserted. A guide pipe 22 is rotatably installed at the bottom of the material conveying pipe 2, and a discharge pipe 23 is rotatably installed at the end of the guide pipe 22.

[0040] A base 3 is rotatably installed inside the outer shell 1. A guide rod 32 is installed on the side wall of the base 3, and a connecting frame 33 is slidably arranged on the guide rod 32. The connecting frame 33 is connected to the feeding pipe 23. The base 3 is connected to the conveying pipe 2. The base 3 is used to drive the feeding pipe 23 to rotate and change the feeding position.

[0041] A positioning rod 342 is installed on the connecting frame 33. The end of the positioning rod 342 is slidably connected to the vortex guide rail 34, which is in a fixed state. The vortex guide rail 34 is used to guide the feeding tube 23 to move towards the center of rotation and change the feeding position.

[0042] A top rod 36 is installed on the base 3, and an adjusting plate 361 is installed on the top of the top rod 36. The adjusting plate 361 is slidably set in the tapered through hole 362 opened inside the conveying pipe 2. As the feeding pipe 23 moves towards the center, the feeding pipe 2 is driven to move upward through the guide pipe 22, and the distance between the tapered through hole 362 in the feeding pipe 2 and the adjusting plate 361 becomes smaller, so that the feeding is synchronized less.

[0043] like Figures 1 to 8 As shown in the specific embodiment, the bottom of the outer casing 1 is provided with three support legs 11, and the top of the three support legs 11 is mounted with a mounting plate 112. A base plate 113 is mounted on the side wall of the outer casing 1, and the base plate 113 is attached to the mounting plate 112. The base plate 113 and the mounting plate 112 are connected by bolts, and the bottom of the support legs 11 is provided with reinforcing ribs 111, which are arranged in a cross pattern. Anti-slip pads are also provided on the bottom of the support legs 11. This support structure, through the combination of triangular layout and cross reinforcing ribs, greatly improves the overall support stability of the device. The bolted connection between the base plate 113 and the mounting plate 112 facilitates the disassembly and maintenance of the outer casing 1, while the anti-slip pads prevent slippage during device operation and ensure the stability of the rotating mechanism during high-speed operation.

[0044] like Figures 1 to 8As shown, a cover plate 12 is further installed on the top of the outer casing 1. A sealing gasket is provided between the bottom of the cover plate 12 and the outer casing 1. An observation window 121 is installed on the outer casing 1 to facilitate observation of the internal situation. The bottom of the cover plate 12 is connected to the spiral guide rail 34, and the center of the cover plate 12 is movably connected to the feed pipe 2. The sealing gasket design of the cover plate 12 ensures a sealed environment inside the outer casing 1, preventing inert gas leakage and the intrusion of external impurities. The observation window 121 enables visual monitoring of the processing process, while the cover plate 12 provides a stable fixed foundation for the spiral guide rail 34.

[0045] like Figures 1 to 8 As shown, furthermore, the inert gas input pipe 13 is located above the inert gas output pipe 131, and the inert gas output pipe 131 and the inert gas input pipe 13 are on the same vertical line. The inert gas input pipe 13 is interconnected with the gas conveying unit, and the inert gas output pipe 131 is interconnected with the gas recovery unit. The vacuum pipe 14 is interconnected with the vacuum suction unit. Valves are installed on the inert gas input pipe 13, the inert gas output pipe 131, the vacuum pipe 14, and the feed pipe 2. The corresponding inert gas pipelines form an efficient airflow circulation, which facilitates the rapid establishment and maintenance of the inert atmosphere. The valves enable independent control of each pipeline, and the gas path and feed status can be precisely adjusted according to process requirements. The cooperation between the vacuum pipe 14 and the vacuum unit provides a negative pressure environment for gas-liquid separation.

[0046] Example 2 differs from the above examples in that: Figures 1 to 8 As shown, a guide hopper 21 is installed at the top of the feed pipe 2, located above the cover plate 12. The guide hopper 21 is conical, and a sealing cover 211 is installed on the outer wall of the guide hopper 21. A sealing plate 212 is installed at the bottom of the sealing cover 211, and the sealing plate 212 is connected to the surface of the cover plate 12 by bolts. The conical guide hopper 21 utilizes gravity to ensure smooth feeding of quartz sand, avoiding material blockage. The combination of the sealing cover 211 and the sealing plate 212 further enhances the sealing of the feed channel, preventing external impurities from entering the device with the feed and ensuring the high-purity processing requirements.

[0047] like Figures 1 to 8 As shown, in a specific embodiment, a first flexible hose 221 is installed at the bottom of the conveying pipe 2, and the end of the first flexible hose 221 is connected to the guide pipe 22. The guide pipe 22 is inclined, and a second flexible hose 222 is installed at the bottom of the guide pipe 22, the end of which is connected to the discharge pipe 23. The flexible connection between the first flexible hose 221 and the second flexible hose 222 adapts to the rotation and radial movement of the discharge pipe 23, avoiding the limitation of the movement trajectory by the rigid connection. The inclined guide pipe 22 uses the slope to achieve residue-free material conveying, ensuring that each piece of material falls accurately into the processing area.

[0048] Example 3, based on the above examples and the differences between this example and the following: Figures 1 to 8 As shown, a drive motor 31 is installed at the bottom of the outer casing 1. An output shaft 311 is installed at the output end of the drive motor 31, and the end of the output shaft 311 extends through the outer casing 1 and is connected to the bottom of the base 3. The drive motor 31 provides stable rotational power to the base 3 through the output shaft 311, ensuring that the base 3 drives the feeding mechanism to rotate at a uniform speed. The design of extending through the shaft ensures the sealing of the outer casing 1 while transmitting power, providing a power foundation for the automated operation of the device.

[0049] like Figures 1 to 8 As shown, in a specific embodiment, a sliding plate 321 is installed at the end of the guide rod 32, and a sliding groove 322 is installed on the inner side wall of the outer shell 1. The sliding groove 322 is slidably connected to the surface of the sliding plate 321. A limiting plate 331 is inserted into the guide rod 32, and the end of the limiting plate 331 is installed on the connecting frame 33. A limiting spring 332 is sleeved on the side wall of the guide rod 32. One end of the limiting spring 332 is engaged with the base 3, and the other end of the limiting spring 332 is engaged with the limiting plate 331. The cooperation between the sliding plate 321 and the sliding groove 322 provides radial support for the rotation of the guide rod 32, avoiding wobbling during rotation. The limiting plate 331 and the limiting spring 332 provide buffering and restoring force for the sliding of the connecting frame 33, ensuring that the slider 341 always conforms to the spiral guide rail 34, thus improving the accuracy of the motion trajectory.

[0050] like Figures 1 to 8 As shown, furthermore, a positioning frame 343 is installed on the top of the connecting frame 33, a positioning rod 342 is installed on the positioning frame 343, and a slider 341 is installed at the end of the positioning rod 342. The surface of the slider 341 is slidably connected to the surface of the spiral guide rail 34. The positioning frame 343 and the positioning rod 342 provide stable mounting support for the slider 341. The sliding cooperation between the slider 341 and the spiral guide rail 34 converts the trajectory of the fixed guide rail into the radial movement of the feeding tube 23, realizing the synchronous linkage of rotation and radial movement, and providing a trajectory guidance basis for differentiated feeding.

[0051] like Figures 1 to 8As shown, furthermore, a limiting rod 35 is installed on the base 3, a positioning plate 351 is installed on the top of the limiting rod 35, and a positioning seat 352 is slidably mounted on the limiting rod 35. The positioning seat 352 is installed on the side wall of the conveying pipe 2, and a positioning spring 353 is sleeved on the side wall of the limiting rod 35. One end of the positioning spring 353 is engaged with the positioning plate 351, and the other end of the positioning spring 353 is engaged with the positioning seat 352. The cooperation between the limiting rod 35 and the positioning seat 352 restricts the movement trajectory of the conveying pipe 2, ensuring that it only moves up and down in the vertical direction, avoiding the failure of material feeding adjustment caused by misalignment between the tapered through hole 362 and the adjusting plate 361. The positioning spring 353 provides a restoring force for the conveying pipe 2, ensuring the timeliness and accuracy of the material feeding adjustment.

[0052] The implementation principle of the device for removing gas-liquid inclusions from high-purity quartz sand according to the present invention is as follows:

[0053] Before starting the device, pretreatment preparations must be completed. High-purity quartz sand of 400-600 mesh is acid-leached, washed with water until neutral, and then dried until the moisture content is ≤0.1%. It is then temporarily stored in the feed hopper 21. At the same time, all sealing structures are checked: whether the sealing gasket between the cover plate 12 and the outer shell 1 is tightly fitted, and whether the sealing plate 212 at the bottom of the sealing cover 211 is pressed tightly to the cover plate 12 with bolts to ensure that there is no air leakage in the feed channel; the pneumatic valves on the inert gas input pipe 13, the inert gas output pipe 131 and the vacuum pipe 14 are in the closed state, and the inside of the outer shell 1 is kept initially clean.

[0054] When starting, argon gas is first introduced into the outer shell 1 through the inert gas input pipe 13 and the internal air is replaced for 3 minutes. After the pressure inside the outer shell 1 rises to 0.02MPa, the drive motor 31 is turned on, and its output shaft 311 drives the base 3 to rotate clockwise.

[0055] The rotation of the base 3 synchronously drives the guide rod 32 on the side wall to rotate. The slide plate 321 at the end of the guide rod 32 slides along the annular groove 322 on the inner side wall of the outer shell 1, providing stable support for the entire rotating mechanism. At the same time, the connecting frame 33 rotates together with the guide rod 32. The slider 341 at the end of the positioning rod 342 on its top positioning frame 343 slides along the spiral guide rail 34 fixed at the bottom of the cover plate 12. Its trajectory is a spiral line that contracts from the outside to the inside. Under the constraint of the trajectory of the spiral guide rail 34, the feeding pipe 23 will slowly approach the rotation center radially while rotating around the feeding pipe 2, realizing full coverage feeding from the inside to the outside of the outer shell 1.

[0056] Quartz sand enters the conveying pipe 2 from the guide hopper 21, is conveyed through the first hose 221 (food-grade silicone material, temperature resistant to 200℃) at the bottom of the conveying pipe 2 to the inclined guide pipe 22, and then enters the discharge pipe 23 through the second hose 222, and finally falls into the processing area inside the outer shell 1 in a continuous falling manner.

[0057] When the feed pipe 23 moves towards the center of rotation, the guide pipe 22 drives the conveying pipe 2 to move upward. At this time, the distance between the conical through hole 362 inside the conveying pipe 2 and the adjusting plate 361 at the top of the top rod 36 gradually decreases, and the amount of quartz sand passing through the conical through hole 362 decreases synchronously, which is suitable for the inner area where the movement speed is slow and the material is easy to accumulate. Conversely, when the feed pipe 23 moves outward, the conveying pipe 2 resets and moves, and the distance between the conical through hole 362 and the adjusting plate 361 increases, and the amount of material discharged increases accordingly, which meets the processing needs of the outer area where the movement speed is fast and more material is needed. Through this mechanical linkage, differentiated material discharge with less material on the inner side and more material on the outer side is achieved, which solves the problem of material distribution imbalance caused by uniform material discharge.

[0058] At the same time, the plasma generator 15 (RF discharge type, 13.56MHz, power 5kW) is started, generating argon plasma at 800-1000℃ inside the outer shell 1. High-energy electrons and ions penetrate the surface of the quartz sand particles and act directly on the internal gas-liquid inclusions: H2O, CO2 and other substances in the inclusions expand rapidly under the action of high energy, causing the outer shell of the inclusions to rupture, and the released gas-liquid mixture flows downward with the argon flow.

[0059] At this time, the Roots-rotary vane vacuum unit connected to the vacuum tube 14 is started, maintaining the pressure inside the outer shell 1 at 300Pa. The gas-liquid mixture generated by the rupture is extracted through the vacuum tube 14. The liquid impurities are condensed and recovered in the gas-liquid separator, while the gas is discharged after purification. Argon gas is continuously introduced through the inert gas input pipe 13, forming a dynamic balance with the vacuum extraction. This not only prevents air backflow but also pushes the trace impurities that have not been extracted toward the vacuum tube 14, thereby improving the separation efficiency.

[0060] Throughout the process, operators can monitor the material distribution and plasma action in real time through the high-temperature resistant quartz glass observation window 121 on the side wall of the outer casing 1. The cooperation between the limit rod 35 and the positioning seat 352 ensures that the conveying pipe 2 moves only in the vertical direction, preventing misalignment between the conical through hole 362 and the adjusting plate 361. The cross reinforcing ribs 111 and anti-slip pads at the bottom of the support legs 11 ensure that the device does not shake during high-speed rotation. After the treatment is completed, the plasma generator 15 is first turned off, and argon purging and vacuum extraction are maintained for 30 minutes to remove residual impurities. Then, the drive motor 31 and vacuum unit are turned off. After the temperature inside the outer casing 1 drops below 50°C, the discharge valve (not shown in the figure) is opened, and the treated quartz sand is collected under argon protection.

Claims

1. A device for removing gas-liquid inclusions from high-purity quartz sand, comprising a housing (1) and an inert gas input pipe (13), an inert gas output pipe (131), a vacuum tube (14), and a plasma generator (15) disposed on the outer side, characterized in that: The outer shell (1) is vertically inserted with a feeding pipe (2), a guide pipe (22) is rotatably installed at the bottom of the feeding pipe (2), and a discharge pipe (23) is rotatably installed at the end of the guide pipe (22). The base (3) is rotatably installed inside the outer shell (1). A guide rod (32) is installed on the side wall of the base (3), and a connecting frame (33) is slidably arranged on the guide rod (32). The connecting frame (33) is connected to the feeding pipe (23). The base (3) is connected to the conveying pipe (2), and the base (3) is used to drive the feeding pipe (23) to rotate and change the feeding position. A positioning rod (342) is installed on the connecting frame (33). The end of the positioning rod (342) is slidably connected to the vortex guide rail (34) in a fixed state. The vortex guide rail (34) is used to guide the feeding tube (23) to move towards the center of rotation and change the feeding position. A top rod (36) is installed on the base (3), and an adjustment plate (361) is installed on the top of the top rod (36). The adjustment plate (361) is slidably disposed in a tapered through hole (362) opened inside the conveying pipe (2). During the process of the feeding pipe (23) moving towards the center, the feeding pipe (2) is driven to move upward through the guide pipe (22), and the distance between the tapered through hole (362) in the feeding pipe (2) and the adjustment plate (361) becomes smaller, so that the feeding is synchronized less.

2. The device for removing gas-liquid inclusions from high-purity quartz sand according to claim 1, characterized in that, The bottom of the outer shell (1) is provided with three support legs (11), and the top of the three support legs (11) is equipped with an mounting plate (112). The side wall of the outer shell (1) is equipped with a base plate (113), and the base plate (113) is attached to the mounting plate (112). The base plate (113) and the mounting plate (112) are connected by bolts. The bottom of the support legs (11) is equipped with reinforcing ribs (111), and the reinforcing ribs (111) are in a cross state. The bottom of the support legs (11) is equipped with an anti-slip pad.

3. The device for removing gas-liquid inclusions from high-purity quartz sand according to claim 1, characterized in that, The top of the outer shell (1) is equipped with a cover plate (12), and a sealing gasket is provided between the bottom of the cover plate (12) and the outer shell (1). An observation window (121) is installed on the outer shell (1), and the observation window (121) facilitates observation of the internal situation. The bottom of the cover plate (12) is connected to the spiral guide rail (34), and the material conveying pipe (2) moves through the center of the cover plate (12).

4. The apparatus for removing gas-liquid inclusions from high-purity quartz sand according to claim 1, characterized in that, The inert gas input pipe (13) is located above the inert gas output pipe (131), and the inert gas output pipe (131) and the inert gas input pipe (13) are on the same vertical line. The inert gas input pipe (13) is connected to the gas conveying unit, and the inert gas output pipe (131) is connected to the gas recovery unit. The vacuum pipe (14) is connected to the vacuum suction unit. Valves are installed on the inert gas input pipe (13), the inert gas output pipe (131), the vacuum pipe (14), and the material conveying pipe (2).

5. The apparatus for removing gas-liquid inclusions from high-purity quartz sand according to claim 4, characterized in that, The top of the conveying pipe (2) is equipped with a guide hopper (21), which is located above the cover plate (12). The guide hopper (21) is conical, and a sealing cover (211) is provided on the outer wall of the guide hopper (21). A sealing plate (212) is installed at the bottom of the sealing cover (211), and the sealing plate (212) is connected to the surface of the cover plate (12) by bolts.

6. The apparatus for removing gas-liquid inclusions from high-purity quartz sand according to claim 1, characterized in that, The bottom of the conveying pipe (2) is equipped with a first hose (221), the end of the first hose (221) is connected to the guide pipe (22), the guide pipe (22) is in an inclined state, and the bottom of the guide pipe (22) is equipped with a second hose (222), the end of the second hose (222) is connected to the discharge pipe (23).

7. The apparatus for removing gas-liquid inclusions from high-purity quartz sand according to claim 1, characterized in that, A drive motor (31) is installed at the bottom of the outer casing (1). An output shaft (311) is installed at the output end of the drive motor (31), and the end of the output shaft (311) moves through the outer casing (1), and the end of the output shaft (311) is connected to the bottom of the base (3).

8. The apparatus for removing gas-liquid inclusions from high-purity quartz sand according to claim 1, characterized in that, The guide rod (32) is equipped with a sliding plate (321) at its end. The inner side wall of the outer shell (1) is equipped with a sliding groove (322). The sliding groove (322) is slidably connected to the surface of the sliding plate (321). The guide rod (32) is inserted with a limiting plate (331), and the end of the limiting plate (331) is installed on the connecting frame (33). The guide rod (32) is sleeved with a limiting spring (332). One end of the limiting spring (332) is snapped onto the base (3), and the other end of the limiting spring (332) is snapped onto the limiting plate (331).

9. The apparatus for removing gas-liquid inclusions from high-purity quartz sand according to claim 1, characterized in that, The top of the connecting frame (33) is equipped with a positioning frame (343), and a positioning rod (342) is installed on the positioning frame (343). A slider (341) is installed at the end of the positioning rod (342), and the surface of the slider (341) is slidably connected to the surface of the spiral guide rail (34).

10. The apparatus for removing gas-liquid inclusions from high-purity quartz sand according to claim 1, characterized in that, A limiting rod (35) is installed on the base (3). A positioning plate (351) is installed on the top of the limiting rod (35). A positioning seat (352) is slidably provided on the limiting rod (35). The positioning seat (352) is installed on the side wall of the conveying pipe (2). A positioning spring (353) is sleeved on the side wall of the limiting rod (35). One end of the positioning spring (353) is clamped on the positioning plate (351), and the other end of the positioning spring (353) is clamped on the positioning seat (352).

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