Photovoltaic quartz tube preparation process based on high-purity quartz sand

Abstract

The invention relates to the technical field of quartz tube production, in particular to a photovoltaic quartz tube preparation process based on high-purity quartz sand. A feeding assembly is arranged on the upper side of a melting assembly, a screening assembly is arranged on the lower side of the feeding assembly, the screening assembly is located in the melting assembly, a driving assembly is arranged on the side of the feeding assembly, and the driving assembly is located on the upper side of the melting assembly. The driving assembly is used for driving the feeding assembly to rotate so as to uniformly feed quartz raw materials, and the feeding assembly is arranged, so that the quartz raw materials are poured into the melting assembly through the feeding assembly by a worker; the feeding assembly has magnetism, metal minerals contained in a quartz raw material are adsorbed out through the magnetism to purify the quartz raw material, and therefore the purity of the quartz raw material is improved, the purity of a quartz stock solution generated after melting is high, the size of a quartz tube is stable when the temperature changes, and the quality of the quartz tube is improved. And the accuracy and repeatability in the heating and cooling processes are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of quartz tube production, in particular to a photovoltaic quartz tube preparation process based on high-purity quartz sand. Background Art

[0002] Quartz sand is usually milky white or colorless and translucent, with a hardness of 7, brittle and non-cleavage, with a shell-like fracture and oily luster. Its density is about 2.65, and the bulk density varies depending on the particle size. In addition, the chemical, thermal and mechanical properties of quartz sand are obviously anisotropic. It is insoluble in acid, slightly soluble in KOH solution, and has a melting point of up to 1750 degrees Celsius.

[0003] In industry, quartz sand is often divided into ordinary quartz sand, refined quartz sand, high-purity quartz sand, fused quartz sand and silicon powder according to different processing techniques and purity. These different types of quartz sand are widely used in glass manufacturing, casting, ceramics and refractory materials, ferrosilicon smelting and other industrial fields. In particular, high-purity quartz sand is widely used in emerging high-tech fields because its silicon dioxide content is higher than 99.9%, it has excellent chemical stability, high insulation withstand voltage and extremely low volume expansion coefficient.

[0004] High-purity quartz sand is often used to make quartz tubes. First, quartz raw materials need to be added to the melting device, and the crucible is heated by a heating device to form a quartz liquid from the quartz raw materials in the crucible, so as to stretch and shape it. However, the quartz raw materials are often doped with some metal minerals, which affect the purity of the quartz liquid. In addition, the quartz raw materials contain larger quartz particles, and the size of the quartz particles will directly affect its behavior during the melting process. Smaller quartz sand particles will enter the melting state faster due to their larger surface area. These fine particles may be wrapped on the surface of large particles after melting, which may cause bubbles to be unable to be discharged, thus affecting the quality of the final product. In addition, large-particle quartz sand has a higher melting point. If the particles are too large or too many, quartz particles that are not completely melted may appear during the melting process, forming the so-called "stones". This not only affects the uniformity and quality of the material, but may also cause damage to the furnace. In view of this, we propose a photovoltaic quartz tube preparation process based on high-purity quartz sand. Summary of the invention

[0005] The purpose of the present invention is to provide a photovoltaic quartz tube preparation process based on high-purity quartz sand to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides a photovoltaic quartz tube preparation process based on high-purity quartz sand, comprising the following steps:

[0007] S1, adding quartz raw materials into a melting component, and heating the melting component by a heating device, so that the quartz raw materials in the melting component form a quartz liquid;

[0008] S2, passing the quartz liquid into the former inside the crucible, and using a tube drawing machine to draw the quartz liquid flowing out of the former into a quartz tube;

[0009] A feeding assembly is provided on the upper side of the melting assembly, a screening assembly is provided on the lower side of the feeding assembly, and the screening assembly is located inside the melting assembly, a driving assembly is provided on the side of the feeding assembly, and the driving assembly is located on the upper side of the melting assembly, wherein:

[0010] The driving component is used to drive the feeding component to rotate and feed its quartz raw material evenly, so that the screening component performs preliminary screening. Then, when the driving component starts to drive the screening component to slide down, the screening component shakes for secondary screening, and at this time the feeding component stops rotating to feed.

[0011] As a further improvement of the present technical solution, the feed assembly includes a feed bin, the lower side of which is fixedly connected to the upper side of the furnace, and a rotating wheel is rotatably connected inside, and a plurality of cavities are evenly arranged in a ring on the outer wall of the rotating wheel, and the plurality of cavities are of the same size.

[0012] As a further improvement of the present technical solution, the screening assembly includes a screening box, the side wall of the screening box is slidably connected to the inner wall of the furnace, and a screen plate is slidably connected inside, the side wall of the screen plate is fixedly connected to a fixing plate, the side of the fixing plate away from the screen plate passes through the side wall of the screening box, the side wall of the screening box close to the fixing plate is fixedly connected to a first slide rail, the inner wall of the first slide rail is slidably connected to a first slider, the upper side of the first slider is fixedly connected to a top block, and the lower side of the fixed plate close to the first slider is fixedly connected to a plurality of protrusions.

[0013] As a further improvement of the technical solution, a first spring is fixedly connected to the upper side of the fixed plate and the inner wall of the hole through the screening box of the fixed plate, a first reciprocating screw is meshedly connected to the inner wall of the first slider, one end of the first reciprocating screw is fixedly connected to a column gear, a rack is meshedly connected to the teeth of the column gear, and the side wall of the rack is fixedly connected to the inner wall of the furnace.

[0014] As a further improvement of the technical solution, a discharging assembly is provided at the lower side of the screening assembly, wherein:

[0015] The discharging assembly is used to open when the screening assembly slides down to the bottom of the furnace under the drive of the driving assembly to discharge the quartz after secondary screening into the bottom of the furnace, and automatically close when the driving assembly drives the screening assembly to move upward.

[0016] As a further improvement of the technical solution, the discharging assembly includes a sliding door, and the sliding door is slidably connected to the bottom of the screening box.

[0017] As a further improvement of the technical solution, the sliding door side wall is fixedly connected to a slide plate, the slide plate is slidably connected to a second slide rail, the inner wall of the second slide rail is slidably connected to a second slider, and the second slider and the opposite side of the slide plate are jointly fixedly connected to a second spring.

[0018] As a further improvement of the present technical solution, the driving assembly includes a base, the lower side of the base is fixedly connected to the upper side of the furnace, and a motor is installed on the upper side, the output end of the motor is fixedly connected to an output rod, the end of the output rod away from the motor is fixedly connected to a first bevel gear, the side of the first bevel gear away from the output rod is fixedly connected to a first rotating rod, the end of the first rotating rod away from the first bevel gear is fixedly connected to a first one-way bearing, the other side of the first one-way bearing is fixedly connected to a first transmission rod, the outer wall of the first transmission rod is fixedly connected to the inside of the rotating wheel, the outer wall of the first bevel gear is meshed with the second bevel gear, the lower side of the second bevel gear is fixedly connected to the second rotating rod, the lower end of the second rotating rod is fixedly connected to the second one-way bearing, the lower side of the second one-way bearing is fixedly connected to a second reciprocating screw, and the outer wall of the second reciprocating screw is meshed with the side wall of the screening box.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the preparation process of the photovoltaic quartz tube based on high-purity quartz sand, a feeding component is provided, and the feeding component is used for the staff to pour the quartz raw material into the melting component through the feeding component. The feeding component has magnetism, and the metal minerals contained in the quartz raw material are adsorbed by magnetism to purify the quartz raw material, thereby improving the purity of the quartz raw material, so that the purity of the quartz raw liquid produced after melting is higher, so that the quartz tube is dimensionally stable when the temperature changes, ensuring the accuracy and repeatability during the heating and cooling process.

[0021] 2. In the preparation process of photovoltaic quartz tube based on high-purity quartz sand, a screening component is set. After the driving component drives the feeding component to rotate and feed, when the screening component accumulates a certain amount of quartz raw materials, the driving component stops driving the feeding component and starts to drive the screening component to slide down. During the sliding process, the screening component continuously shakes to perform secondary screening, so that larger particles of quartz raw materials are screened out, so that the quartz raw materials entering the melting component for melting are finer and uniform in size, thereby avoiding the occurrence of quartz particles that are not completely melted during the melting process to form the so-called "stones", which not only affects the uniformity and quality of the material, but may also cause damage to the melting component, thereby improving the uniformity and quality of the material and extending the service life of the melting component.

[0022] 3. In the preparation process of photovoltaic quartz tube based on high-purity quartz sand, the screening component slides down to the bottom of the melting component under the drive of the driving component to discharge the quartz raw materials, which not only forms a secondary screening of the quartz raw materials to avoid damage to the melting component by larger particles during the melting process, but also avoids damage to the melting component by the impact force generated by the quartz raw material particles falling from a high place before melting. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 It is a schematic structural diagram of a feed assembly of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the screening component of the present invention;

[0027] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0028] Figure 6 It is a schematic diagram of the structure of the discharging assembly of the present invention;

[0029] Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0030] Figure 8 It is a schematic diagram of the structure of the driving component of the present invention.

[0031] The meaning of each number in the figure is:

[0032] 100. melting component; 101. furnace;

[0033] 200, feed assembly; 201, feed bin; 202, rotating wheel; 203, cavity;

[0034] 300, screening assembly; 301, screening box; 302, screening plate; 303, fixing plate; 3031, first slide rail; 3032, first slider; 3033, first reciprocating screw rod; 3034, column gear; 3035, rack; 3036, top block; 3037, protrusion; 3038, first spring;

[0035] 310, discharging assembly; 311, second slide rail; 312, second slide block; 313, slide plate; 314, second spring; 315, slide door;

[0036] 400, driving assembly; 401, base; 402, motor; 403, output rod; 404, first bevel gear; 4041, first rotating rod; 4042, first one-way bearing; 4043, first transmission rod; 405, second bevel gear; 4051, second rotating rod; 4052, second one-way bearing; 4053, second reciprocating screw. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Quartz sand is usually milky white or colorless and translucent, with a hardness of 7, brittle and non-cleavage, with a shell-like fracture and oily luster. Its density is about 2.65, and the bulk density varies depending on the particle size. In addition, the chemical, thermal and mechanical properties of quartz sand are obviously anisotropic. It is insoluble in acid, slightly soluble in KOH solution, and has a melting point of up to 1750 degrees Celsius.

[0039] In industry, quartz sand is often divided into ordinary quartz sand, refined quartz sand, high-purity quartz sand, fused quartz sand and silicon powder according to different processing techniques and purity. These different types of quartz sand are widely used in glass manufacturing, casting, ceramics and refractory materials, ferrosilicon smelting and other industrial fields. In particular, high-purity quartz sand is widely used in emerging high-tech fields because its silicon dioxide content is higher than 99.9%, it has excellent chemical stability, high insulation withstand voltage and extremely low volume expansion coefficient.

[0040] See also Figure 1-Figure 8 As shown, this embodiment provides a photovoltaic quartz tube preparation process based on high-purity quartz sand, comprising the following steps:

[0041] S1, adding quartz raw material into the melting furnace 100, and heating the melting furnace 100 by using a heating device, so that the quartz raw material in the melting furnace 100 forms a quartz liquid;

[0042] S2, passing the quartz liquid into the former inside the crucible, and using a tube drawing machine to draw the quartz liquid flowing out of the former into a quartz tube;

[0043] A feed assembly 200 is provided on the upper side of the furnace 100, a screening assembly 300 is provided on the lower side of the feed assembly 200, and the screening assembly 300 is located inside the furnace 100, a drive assembly 400 is provided on the side of the feed assembly 200, and the drive assembly 400 is located on the upper side of the furnace 100, wherein:

[0044] The driving component 400 is used to drive the feeding component 200 to rotate and feed its quartz raw material evenly, so that the screening component 300 performs preliminary screening. Then, when the driving component 400 starts to drive the screening component 300 to slide down, the screening component 300 shakes for secondary screening, and at this time the feeding component 200 stops rotating to feed.

[0045] Considering that the quartz raw material is often doped with some metal minerals, which affects the purity of the quartz liquid, it is impossible to achieve high-purity quartz stock solution, so that the purity of the quartz tube made by stretching is not enough. However, the high-purity quartz tube has good transparency and optical properties, which are used for optical detection and observation. If the purity is not enough, its transparency and optical properties may be affected. Therefore, by setting a feed assembly 200, the feed assembly 200 is used for the staff to pour the quartz raw material into the furnace 100 through it. The feed assembly 200 has magnetism and adsorbs the metal minerals contained in the quartz raw material through magnetism to purify the quartz raw material, thereby improving the purity of the quartz raw material, so that the purity of the quartz stock solution produced after melting is higher, so that the quartz tube is dimensionally stable when the temperature changes, ensuring the accuracy and repeatability during the heating and cooling process.

[0046] Further considering the larger particles of quartz contained in the quartz raw material, the size of the quartz particles will directly affect its behavior during the melting process. Smaller quartz sand particles will enter the melting state faster due to their larger surface area. These fine particles may wrap around the surface of the large particles after melting, which may prevent bubbles from being discharged, thus affecting the quality of the final product. In addition, large particles of quartz sand have a higher melting point. If the particles are too large or too many, quartz particles that are not completely melted may appear during the melting process, forming so-called "stones". This not only affects the uniformity and quality of the material, but may also cause damage to the furnace 100. Therefore, a screening component 300 is set. After the driving component 400 drives the feeding component 200 to rotate and feed, when the screening component 300 accumulates a certain amount of quartz raw materials, the driving component 400 stops driving the feeding component 200 and starts to drive the screening component 300 to slide down. During the sliding process, the screening component 300 continuously shakes to perform secondary screening to screen out larger particles of quartz raw materials, so that the quartz raw material particles entering the furnace 100 for melting are finer and uniform in size, thereby avoiding the occurrence of quartz particles that are not completely melted during the melting process to form the so-called "stones", which not only affects the uniformity and quality of the material, but also may cause damage to the furnace 100, thereby improving the uniformity and quality of the material and extending the service life of the furnace 100.

[0047] In addition, considering that quartz raw material particles falling from a high place into the furnace 100 may cause impact force to the inside of the furnace 100 and cause damage, the screening component 300 slides down to the bottom of the furnace 100 under the drive of the driving component 400 to discharge the quartz raw material, which not only forms a secondary screening of the quartz raw material to avoid larger particles from damaging the furnace 100 during the melting process, but also avoids the furnace 100 from being damaged by the impact force generated by the quartz raw material particles falling from a high place before melting.

[0048] On the basis of the above, the specific structure needs to be disclosed in detail:

[0049] First, the furnace 100 must be used to melt the quartz raw material. Please refer to Figure 1-Figure 2 The melting furnace 100 includes a melting furnace 100, which is used to melt the quartz raw material. When the quartz raw material enters the melting furnace 100, it is heated to turn it into quartz raw liquid so that it can be processed in the next step.

[0050] Secondly, the feed component 200 can purify the quartz raw material by adsorbing the metal minerals contained in the quartz raw material through magnetism, and can make the quartz raw material evenly enter the interior of the screening component 300. Figure 3 The feed assembly 200 includes a feed bin 201, the lower side of which is fixedly connected to the upper side of the furnace 100, and a rotating wheel 202 is rotatably connected inside the feed bin 201. The outer wall of the rotating wheel 202 is evenly provided with a plurality of cavities 203 around a ring, and the plurality of cavities 203 are of the same size. The feed bin 201 is used for the staff to pour the quartz raw material into, and then the quartz raw material flows to the inside of the cavity 203 of the rotating wheel 202, and the cavity 203 is magnetic. When the rotating wheel 202 drives the cavity 203 to rotate inside the furnace 100, the quartz raw material begins to fall under the action of gravity, and the metal minerals are adsorbed on the inner wall of the cavity 203, thereby realizing the separation of the quartz raw material and the metal minerals, and improving the purity of the subsequent quartz stock solution.

[0051] Then, the secondary screening of the screening assembly 300 is performed to screen out the larger quartz particles. Figure 4-Figure 5The screening assembly 300 includes a screening box 301, which is used to carry the quartz raw material discharged from the inside of the feeding assembly 200. The side wall of the screening box 301 is slidably connected to the inner wall of the melting furnace 100, and a screen plate 302 is slidably connected inside. The screen plate 302 is used to screen out larger particles of quartz raw material and retain them on the upper side of the screen plate 302. The side wall of the screen plate 302 is fixedly connected to a fixed plate 303, which is used to drive the screen plate 302 to bump up and down, thereby forming a shaking effect on the screen plate 302, thereby improving the secondary screening effect, and the fixed plate 303 is away from the screen plate 30 2 penetrates the side wall of the screening box 301, and the side wall of the screening box 301 near the fixed plate 303 is fixedly connected with a first slide rail 3031, and the first slide rail 3031 is used for the first slider 3032 to slide, and the first slider 3032 is slidably connected to the inner wall of the first slide rail 3031, and the first slider 3032 is used to drive the top block 3036 to move, and the top block 3036 is fixedly connected to the upper side of the first slider 3032, and the top block 3036 is used to lift the protrusion 3037, and the lower side of the fixed plate 303 near the first slider 3032 is fixedly connected with a plurality of protrusions 3037, and the protrusion 303 7 is used to drive the fixed plate 303 to move upward after the top block 3036 is lifted up. The upper side of the fixed plate 303 and the inner wall of the hole of the fixed plate 303 that penetrates the screening box 301 are fixedly connected with a first spring 3038. The first spring 3038 is used to reset the fixed plate 303 after it is lifted up. The inner wall of the first slider 3032 is meshed with a first reciprocating screw rod 3033. The first reciprocating screw rod 3033 is used to drive the first slider 3032 to reciprocate. One end of the first reciprocating screw rod 3033 is fixedly connected with a column gear 3034. The column gear 3034 is used to drive the first reciprocating screw rod 303 3 is rotated, and the teeth of the column gear 3034 are meshed with a rack 3035. The rack 3035 drives the column gear 3034 to rotate through a direct meshing connection relationship with the column gear 3034. The side wall of the rack 3035 is fixedly connected to the inner wall of the melting furnace 100, so that the top block 3036 and the protrusion 3037 are constantly abutted to make the fixed plate 303 constantly bump up and down, so that the sieve plate 302 produces a shaking effect, and then the sieve plate 302 performs secondary screening on the quartz raw materials, thereby improving the stability of the quartz particles in the melting process, and improving the quality of the quartz tubes manufactured subsequently.

[0052] To further realize that the driving component 400 drives the feeding component 200 to feed and the screening component 300 to screen, please refer to Figure 8The driving assembly 400 includes a base 401, which is used to provide a stable working platform for the motor 402. The lower side of the base 401 is fixedly connected to the upper side of the melting furnace 100, and the motor 402 is installed on the upper side. The motor 402 is used to drive the output rod 403 to rotate. The output end of the motor 402 is fixedly connected to the output rod 403, and the output rod 403 is used to drive the first bevel gear 404 to rotate. The end of the output rod 403 away from the motor 402 is fixedly connected to the first bevel gear 404, and the first bevel gear 404 is used to drive the first rotating rod 4041 to rotate. The first rotating rod 4041 is used to drive the first one-way bearing 4042 to rotate. The first bevel gear 404 is fixedly connected to the first rotating rod 4041 on the side away from the output rod 403, and the end of the first rotating rod 4041 away from the first bevel gear 404 is fixedly connected to the first one-way bearing 4042. The first one-way bearing 4042 is used to drive the first transmission rod 4043 to rotate The first one-way bearing 4042 is fixedly connected to a first transmission rod 4043 on the other side, and the outer wall of the first transmission rod 4043 is fixedly connected to the inside of the rotating wheel 202. The first transmission rod 4043 is used to drive the rotating wheel 202 to rotate. The outer wall of the first bevel gear 404 is meshedly connected to a second bevel gear 405. The second bevel gear 405 is used to drive the second rotating rod 4051 to rotate. The lower side of the second bevel gear 405 is fixedly connected to the second rotating rod 4051. 051 is used to drive the second one-way bearing 4052 to rotate, the lower end of the second rotating rod 4051 is fixedly connected to the second one-way bearing 4052, the second one-way bearing 4052 is used to drive the second reciprocating screw rod 4053 to rotate, the lower side of the second one-way bearing 4052 is fixedly connected to the second reciprocating screw rod 4053, the outer wall of the second reciprocating screw rod 4053 is meshedly connected to the side wall of the screening box 301, and the second reciprocating screw rod 4053 is used to drive the screening box 301 to move up and down.

[0053] Finally, considering that the raw material particles falling from a high place into the furnace 100 may cause impact force to the furnace 100 and cause damage, please refer to FIG. Figure 6-Figure 7, a discharging assembly 310 is provided at the lower side of the screening assembly 300, and the discharging assembly 310 is used to open when the screening assembly 300 slides down to the bottom of the furnace 100 under the drive of the driving assembly 400 to discharge the quartz raw materials after the secondary screening into the bottom of the furnace 100, and automatically close when the driving assembly 400 drives the screening assembly 300 to move upward, and the discharging assembly 310 includes a sliding door 315, which is used to open to discharge the quartz raw materials or to ensure that the quartz raw materials will not fall when closed, and the sliding door 315 is slidably connected to the bottom of the screening box 301, and the side wall of the sliding door 315 is fixedly connected to a slide plate 313, and the slide plate 313 is used to drive the sliding door 315 to move, and the slide plate 313 is slidably connected to a second slide rail 311 away from the slide rail 311, and the second slide rail 311 is used for the second slider 312 to slide, and the second slide rail 31 The inner wall of the second slide block 312 is slidably connected to the slide block 313, and the second slide block 312 is used for the slide block 313 to slide on the surface of the second slide rail 311. The second slide block 312 and the slide block 313 are fixedly connected to the second spring 314 on the opposite side. The second spring 314 is used to make the slide block 313 fit the surface of the second slide rail 311, and the size of the lower end of the second slide rail 311 is consistent with the size of the slide door 315, so that when the slide door 315 slides down to the lower end of the second slide rail 311, the second spring 314 pulls the slide block 313 into the second slide rail 311, and the slide block 313 drives the slide door 315 to move, and then the slide door 315 opens to allow the quartz raw material to fall from the inside of the screening box 301 into the inside of the melting furnace 100 for melting, thereby reducing the impact of the quartz raw material falling into the inside of the melting furnace 100, and avoiding the melting furnace 100 from being damaged by a large impact.

[0054] Specifically, the staff first starts the motor 402, at which time the output end of the motor 402 rotates right, thereby driving the output rod 403 to rotate right, the output rod 403 rotates right to drive the first bevel gear 404 to rotate right, the first bevel gear 404 rotates right to drive the first rotating rod 4041 to rotate right, the first rotating rod 4041 rotates right to drive the first transmission rod 4043 to rotate right through the first one-way bearing 4042, the first transmission rod 4043 rotates right to drive the rotating wheel 202 to rotate right, and at this time the staff pours the quartz raw material into the feed bin 201, thereby rotating The wheel 202 continuously feeds the raw materials into the screening box 301. After a period of time, the staff turns off the motor 402 and then starts the motor 402 again. At this time, the output end of the motor 402 starts to rotate left, thereby driving the output rod 403 to rotate left. The output rod 403 rotates left, thereby driving the first bevel gear 404 to rotate left. At this time, the first bevel gear 404 drives the second bevel gear 405 to rotate. The rotation of the second bevel gear 405 drives the second rotating rod 4051 to rotate. The rotation of the second rotating rod 4051 drives the second one-way bearing 4052 to rotate. The second one-way shaft The bearing 4052 rotates to drive the second reciprocating screw rod 4053 to rotate, so that the second reciprocating screw rod 4053 drives the screening box 301 to slide down. When sliding down, the column gear 3034 rotates continuously when passing through the rack 3035, so that the column gear 3034 drives the first reciprocating screw rod 3033 to rotate, and the first reciprocating screw rod 3033 rotates to drive the first slider 3032 to move, so that the first slider 3032 drives the top block 3036 to pass under the protrusion 3037. At this time, the top block 3036 will intermittently lift the protrusion 3037, so that the protrusion Block 3037 drives the fixed plate 303 to bump up and down, so that the fixed plate 303 drives the screen plate 302 to shake, and the screen plate 302 screens some fine raw materials to the bottom through shaking, so that larger particles of raw materials stay on the upper side of the screen plate 302, and when the screening box 301 slides to the bottom of the furnace 100, the second spring 314 pulls the slide plate 313 into the second slide rail 311, and the slide plate 313 drives the slide door 315 to move, and then the slide door 315 opens, allowing the quartz raw material to fall from the inside of the screening box 301 into the inside of the furnace 100 for melting.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A photovoltaic quartz tube preparation process based on high-purity quartz sand, characterized in that: The steps include: S1, adding quartz raw material into a melting furnace (100), and heating the melting furnace (100) by using a heating device, so that the quartz raw material in the melting furnace (100) forms a quartz liquid; S2, passing the quartz liquid into the former inside the crucible, and using a tube drawing machine to draw the quartz liquid flowing out of the former into a quartz tube; A feeding assembly (200) is provided on the upper side of the melting furnace (100), a screening assembly (300) is provided on the lower side of the feeding assembly (200), and the screening assembly (300) is located inside the melting furnace (100), a driving assembly (400) is provided on the side of the feeding assembly (200), and the driving assembly (400) is located on the upper side of the melting furnace (100), wherein: The driving component (400) is used to drive the feeding component (200) to rotate and feed its quartz raw material evenly, so that the screening component (300) performs preliminary screening. Then, when the driving component (400) starts to drive the screening component (300) to slide down, the screening component (300) performs secondary screening by shaking, and at this time, the feeding component (200) stops rotating to feed.

2. The photovoltaic quartz tube preparation process based on high-purity quartz sand according to claim 1, characterized in that: The feed assembly (200) comprises a feed bin (201), the lower side of which is fixedly connected to the upper side of the melting furnace (101), and a rotating wheel (202) is rotatably connected inside the feed bin, and a plurality of cavities (203) are evenly arranged in a ring shape on the outer wall of the rotating wheel (202), and the plurality of cavities (203) are of the same size.

3. The photovoltaic quartz tube preparation process based on high-purity quartz sand according to claim 2, characterized in that: The screening assembly (300) comprises a screening box (301), the side wall of the screening box (301) is slidably connected to the inner wall of the melting furnace (101), and a screen plate (302) is slidably connected inside the screening box, the side wall of the screen plate (302) is fixedly connected to a fixing plate (303), the side of the fixing plate (303) away from the screen plate (302) passes through the side wall of the screening box (301), the side wall of the screening box (301) close to the fixing plate (303) is fixedly connected to a first slide rail (3031), the inner wall of the first slide rail (3031) is slidably connected to a first slider (3032), the upper side of the first slider (3032) is fixedly connected to a top block (3036), and the lower side of the fixing plate (303) close to the first slider (3032) is fixedly connected to a plurality of protrusions (3037).

4. The photovoltaic quartz tube preparation process based on high-purity quartz sand according to claim 3, characterized in that: The upper side of the fixed plate (303) and the inner wall of the hole of the fixed plate (303) penetrating the screening box (301) are fixedly connected with a first spring (3038); the inner wall of the first sliding block (3032) is meshedly connected with a first reciprocating screw rod (3033); one end of the first reciprocating screw rod (3033) is fixedly connected with a column gear (3034); the teeth of the column gear (3034) are meshedly connected with a rack (3035); and the side wall of the rack (3035) is fixedly connected to the inner wall of the melting furnace (101).

5. The photovoltaic quartz tube preparation process based on high-purity quartz sand according to claim 1, characterized in that: A discharging assembly (310) is provided at the lower side of the screening assembly (300), wherein: The discharge assembly (310) is used to open when the screening assembly (300) slides down to the bottom of the furnace (101) under the drive of the driving assembly (400) to discharge the quartz after secondary screening away from the bottom of the furnace (101), and automatically close when the driving assembly (400) drives the screening assembly (300) to move upward.

6. The photovoltaic quartz tube preparation process based on high-purity quartz sand according to claim 5, characterized in that: The discharge assembly (310) comprises a sliding door (315), and the sliding door (315) is slidably connected to the bottom of the screening box (301).

7. The photovoltaic quartz tube preparation process based on high-purity quartz sand according to claim 6, characterized in that: The side wall of the sliding door (315) is fixedly connected with a slide plate (313), the slide plate (313) is slidably connected away from a second slide rail (311), the inner wall of the second slide rail (311) is slidably connected with a second slider (312), and the second slider (312) is fixedly connected with a second spring (314) on the opposite side of the slide plate (313).

8. The process for preparing photovoltaic quartz tube based on high-purity quartz sand according to claim 1, characterized in that: The driving assembly (400) comprises a base (401), the lower side of the base (401) is fixedly connected to the upper side of the melting furnace (101), and a motor (402) is installed on the upper side, the output end of the motor (402) is fixedly connected to an output rod (403), one end of the output rod (403) away from the motor (402) is fixedly connected to a first bevel gear (404), one side of the first bevel gear (404) away from the output rod (403) is fixedly connected to a first rotating rod (4041), one end of the first rotating rod (4041) away from the first bevel gear (404) is fixedly connected to a first one-way bearing (4042), and the first one-way bearing (4042) is fixedly connected to the first one-way bearing (4042). A first transmission rod (4043) is fixedly connected to the other side of the bearing (4042); an outer wall of the first transmission rod (4043) is fixedly connected to the inside of the rotating wheel (202); an outer wall of the first bevel gear (404) is meshingly connected to a second bevel gear (405); a second rotating rod (4051) is fixedly connected to the lower side of the second bevel gear (4055); a second one-way bearing (4052) is fixedly connected to the lower end of the second rotating rod (4051); a second reciprocating screw rod (4053) is fixedly connected to the lower side of the second one-way bearing (4052); an outer wall of the second reciprocating screw rod (4053) is meshingly connected to the side wall of the screening box (301).

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