Loading and unloading equipment for quartz tube production

Abstract

The invention discloses loading and unloading equipment for quartz tube production, and relates to the technical field of quartz sand processing, the loading and unloading equipment comprises a loading box, a feeding port is formed in the upper side of the loading box, a first sieve plate is fixed to the lower side of the feeding port, the first sieve plate is obliquely arranged, and a separation assembly is arranged at the high-position end of the first sieve plate; the separation assembly is connected with a plurality of airflow pipelines, the other ends of the airflow pipelines are communicated with the low-position end of the first sieve plate, a filter and a first air pump are sequentially arranged on the airflow pipelines, the separation assembly comprises a first partition plate, and the side, facing the first sieve plate, of the first partition plate is connected with a plurality of springs; the other end of the spring is connected with a second partition plate, and a pressure detection module is arranged at the connecting end of the spring and the first partition plate. The melting quality of the quartz sand is improved.

Description

Technical Field

[0001] This invention relates to the field of quartz sand processing technology, specifically to a loading and unloading device for quartz tube production. Background Technology

[0002] Quartz tubes are an important industrial material widely used in semiconductors, photovoltaics, chemicals, optics, and other fields. Their production process mainly includes: raw material preparation, melting, molding, and post-processing. Quartz sand is the raw material for producing quartz tubes. Before being added to the melting process, the quartz sand is washed and dried to remove contaminants and moisture. Then, the quartz sand is fed into the melting equipment manually or via an automatic conveyor.

[0003] Automatic conveyors mainly include screw conveyors, pneumatic conveying systems, and belt conveyors. Among them, screw conveyors are suitable for large-particle quartz sand, pneumatic conveying systems are suitable for small-particle quartz sand, and belt conveyors are suitable for both large and small particles. However, because they are in an open environment, impurities may be mixed in during transportation, which reduces the purity of the quartz sand. At the same time, there are height requirements during the transfer process. Therefore, screw conveyors are more commonly used in production processes.

[0004] Existing screw conveyor systems employ an auger structure, relying on gravity for loading and then lifting the material to the desired height for unloading. Because quartz sand particles are hard and vary in size, screw conveyors require regular inspection and maintenance during operation to prevent material accumulation, blade damage, and overheating. If the blades wear out significantly during transport, impurities may mix into the quartz sand material during unloading, reducing the melt quality. Summary of the Invention

[0005] The purpose of this invention is to provide a loading and unloading device for quartz tube production, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a loading and unloading device for quartz tube production, including a loading box, an inlet on the upper side of the loading box for feeding quartz sand, a first screen plate fixed on the lower side of the inlet, the first screen plate being inclined and a separation component being provided at the high end, the separation component being connected to several airflow pipes, the other end of the airflow pipes being connected to the low end of the first screen plate, and a filter and a first air pump being sequentially arranged on the airflow pipes.

[0007] According to the above technical solution, the separation component includes a first partition plate, which is fixed to a first screen plate. The upper side of the first partition plate is connected to the inner wall of the top of the loading box. Several springs are connected to the side of the first partition plate facing the first screen plate. The other end of the springs is connected to a second partition plate. A pressure detection module is provided at the connection end between the springs and the first partition plate. Several staggered separation holes are provided on the first partition plate and the second partition plate.

[0008] According to the above technical solution, a long rod is fixed inside the loading box relative to the outside of the first partition. A rotating sleeve is fitted on the outside of the long rod. A rotation sensing module is set between the long rod and the rotating sleeve. Several arc-shaped spring pieces are set around the circumference of the rotating sleeve. An arc-shaped baffle is set on the inner wall of the loading box in conjunction with the rotating sleeve.

[0009] According to the above technical solution, a second screen plate is provided on the lower side of the first screen plate. The second screen plate is inclined. The loading box has an outlet at the lower end of the second screen plate. An arc-shaped guide plate is provided between the first screen plate and the second screen plate. A sealing plate is provided between the second screen plate and the arc-shaped guide plate.

[0010] According to the above technical solution, the second sieve plate has sieve holes that are the same as those of the first sieve plate, which are used to further separate large particles of quartz sand and small particles of quartz sand. The lower end of the first sieve plate is open and connected to the upper end of the second sieve plate. The lower side of the second sieve plate is a storage area for small particles of quartz sand.

[0011] According to the above technical solution, the outlet of the loading box is connected to a first conveying pipe, and the storage area of ​​the loading box is connected to two second conveying pipes on both sides.

[0012] According to the above technical solution, an auger is installed inside the first conveying pipe, the auger is connected to a drive assembly, and an unloading box is connected to the upper side of the first conveying pipe.

[0013] According to the above technical solution, the second conveying pipe includes a first branch pipe, a connecting pipe and a second branch pipe. The first branch pipe and the second branch pipe are respectively fixed on both sides of the first conveying pipe. The two ends of the connecting pipe are respectively connected to the first branch pipe and the second branch pipe. A second air pump is respectively installed on the first branch pipe and the second branch pipe.

[0014] According to the above technical solution, a steering box is provided at the junction of the first branch pipe and the connecting pipe. An output pipe is provided on the steering box and connected to the unloading box. A rotating shaft is provided inside the steering box, and a valve block is fixed on the rotating shaft. The rotating shaft is connected to the first driver.

[0015] According to the above technical solution, a pretreatment box is provided on the feed inlet, and three rollers are arranged at intervals inside the pretreatment box. The rollers are staggered vertically, and the drive end of the rollers is connected to a pulley group. One of the rollers is connected to a second driver.

[0016] According to the above technical solution, a movable frame is provided on the lower side of the first conveying pipe. The movable frame is used to control the unloading height and help the whole equipment move freely.

[0017] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: This invention, by incorporating a separation component, enables three-stage separation of dust, large particles, and small particles. The separation process is controlled according to the separation status, preventing impurities from reducing melt quality and avoiding uneven distribution or blockage of materials within the transport container due to differences in gravity and friction, where large particles may sink and small particles may accumulate on the surface. Furthermore, the inclusion of a steering box allows for the proportional addition of materials of varying sizes according to melting requirements, further improving melt quality. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the loading and unloading equipment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the loading box of the loading and unloading equipment of the present invention; Figure 3 This is the present invention. Figure 2 Enlarged diagram of area A; Figure 4 This is a partial sectional view of the loading and unloading equipment of the present invention; Figure 5 This is a partial schematic diagram of the loading and unloading equipment of the present invention; Figure 6 This is a schematic diagram of the internal structure of the steering box of the present invention; Figure 7 This is a schematic diagram of the pretreatment box of the present invention.

[0019] In the diagram: 1. Loading box; 11. Feed inlet; 12. First conveying pipe; 121. Screwdriver; 122. Drive assembly; 13. Second conveying pipe; 131. First branch pipe; 132. Connecting pipe; 133. Second branch pipe; 14. Second air pump; 15. Steering box; 151. Rotating shaft; 152. Valve block; 153. First driver; 16. Output pipe; 17. Moving frame; 2. First screen plate; 3. Separation assembly; 31. First partition plate; 32. Spring; 33. Second partition plate; 34. Separating hole; 35. Long rod; 36. Rotating sleeve; 361. Arc-shaped spring; 37. Arc-shaped baffle; 41. Airflow pipeline; 42. Filter; 43. First air pump; 5. Second screen plate; 6. Arc-shaped guide plate; 7. Sealing plate; 8. Unloading box; 9. Pre-treatment box; 91. Roller; 92. Pulley assembly; 93. Second driver. Detailed Implementation

[0020] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-7 The present invention provides a technical solution: a loading and unloading device for quartz tube production, including a loading box 1, an inlet 11 for feeding quartz sand on the upper side of the loading box 1, a first screen plate 2 fixed on the lower side of the inlet 11, the first screen plate 2 being inclined and a separation component 3 being provided at the high end, the separation component 3 being connected to a plurality of airflow pipes 41, the other end of the airflow pipes 41 being connected to the low end of the first screen plate 2, and a filter 42 and a first air pump 43 being sequentially arranged on the airflow pipes 41.

[0022] like Figure 2 , Figure 3 As shown, the separation component 3 includes a first partition 31, which is fixed on the first screen plate 2. The upper side of the first partition 31 is connected to the inner wall of the top of the loading box 1. Several springs 32 are connected to the side of the first partition 31 facing the first screen plate 2. The other end of the springs 32 is connected to a second partition 33. A pressure detection module is provided at the connection end between the springs 32 and the first partition 31. Several staggered separation holes 34 are provided on the first partition 31 and the second partition 33.

[0023] In actual operation, the quartz sand particles enter the loading box 1 through the feed inlet 11, fall onto the surface of the first screen plate 2, and roll down to the lower end of the first screen plate 2. During this period, the first air pump 43 is started, which draws the gas from the high end of the first screen plate 2 to the low end of the first screen plate 2. The airflow flows through the surface of the first screen plate 2, carrying away the dust and impurities entrained in the quartz sand particles. The airflow passes through the first partition 31 and the second partition 33 and enters the airflow pipe 41. After the impurities are filtered out by the filter 42, it is transported back to the loading box 1 by the first air pump 43 for the next cycle.

[0024] Furthermore, a long rod 35 is fixed inside the material box 1 relative to the outside of the first partition 31. A rotating sleeve 36 is sleeved on the outside of the long rod 35. A rotation sensing module is provided between the long rod 35 and the rotating sleeve 36. Several arc-shaped spring pieces 361 are provided around the circumference of the rotating sleeve 36. An arc-shaped baffle 37 is provided on the inner wall of the material box 1 in conjunction with the rotating sleeve 36.

[0025] The following is a supplementary explanation based on the above structure: The surface of the first sieve plate 2 is provided with sieve holes for separating large and small quartz sand particles. The airflow is used to separate quartz sand from dust and impurities, and at the same time to slow down the rolling progress of quartz sand particles, so that the separation of large and small quartz sand particles is more complete. Some of the small quartz sand particles, due to their light weight, will be carried by the airflow to the first partition 31 and the second partition 33. The pressure detection module adjusts the pumping force of the first air pump 43 according to the pressure value change to prevent too many quartz sand particles from being blown to the side of the second partition 33. When the airflow passes through the first partition 31 and the second partition 33, it impacts the surface of the rotating sleeve 36. The arc-shaped spring 361 causes the rotating sleeve 36 to deflect. If small particles of quartz sand pass through the first partition 31 and the second partition 33, a space with minimal airflow influence is formed between the arc-shaped spring 361 and the arc-shaped baffle 37 when the spring 361 passes the baffle 37. This allows the small particles of quartz sand to fall onto the surface of the baffle 37 and then fall downwards. Dust and impurities adhere to the surface of the arc-shaped spring 361 and are carried away from the loading box 1 by subsequent airflow. The rotation sensing module is used to detect changes in the rotational state of the rotating sleeve 36.

[0026] like Figure 4 As shown, a second screen plate 5 is provided on the lower side of the first screen plate 2. The second screen plate 5 is inclined. The loading box 1 has an outlet at the lower end of the second screen plate 5. An arc-shaped guide plate 6 is provided between the first screen plate 2 and the second screen plate 5. A sealing plate 7 is provided between the second screen plate 5 and the arc-shaped guide plate 6.

[0027] It should be noted that the second sieve plate 5 has the same sieve holes as the first sieve plate 2, which is used to further separate large particles of quartz sand and small particles of quartz sand. The lower end of the first sieve plate 2 is open and connected to the upper end of the second sieve plate 5. The lower side of the second sieve plate 5 is the storage area for small particles of quartz sand.

[0028] In actual operation, after the quartz sand material enters the loading box 1, the large particles pass through the first screen plate 2 and the second screen plate 5 in sequence and leave from the opening of the loading box 1. The small particles separated from the first screen plate 2 and blocked by the separation component 3 fall to the arc-shaped guide plate 6 and are guided to the storage area. The small particles separated by the second screen plate 5 will fall directly to the storage area.

[0029] In one embodiment, such as Figure 5 As shown, the outlet of the loading box 1 is connected to a first conveying pipe 12, and the storage area of ​​the loading box 1 is connected to a second conveying pipe 13 on both sides.

[0030] An auger 121 is installed inside the first conveying pipe 12. The auger 121 is connected to a drive assembly 122. An unloading box 8 is connected to the upper side of the first conveying pipe 12.

[0031] Furthermore, the second delivery pipe 13 includes a first branch pipe 131, a connecting pipe 132, and a second branch pipe 133. The first branch pipe 131 and the second branch pipe 133 are respectively fixed on both sides of the first delivery pipe 12. The two ends of the connecting pipe 132 are respectively connected to the first branch pipe 131 and the second branch pipe 133. A second air pump 14 is respectively installed on the first branch pipe 131 and the second branch pipe 133.

[0032] Furthermore, such as Figure 6 As shown, a steering box 15 is provided at the junction of the first branch pipe 131 and the connecting pipe 132. An output pipe 16 is provided on the steering box 15, and the output pipe 16 is connected to the unloading box 8. A rotating shaft 151 is provided inside the steering box 15, and a valve block 152 is fixed on the rotating shaft 151. The rotating shaft 151 is connected to the first driver 153.

[0033] In actual operation, the second conveying pipe 13 is used to convey small-particle quartz sand to the unloading box 8, and the steering box 15 is used to adjust the conveying amount of small-particle quartz sand. When small-particle quartz sand is not needed, the second air pump 14 stops pneumatic conveying. If too many particles accumulate in the storage area, the second air pump 14 can be started to reduce the pressure of material accumulation through pneumatic conveying. The small-particle quartz sand in the storage area circulates in the second conveying pipe 13. At this time, the valve block 152 blocks the opening of the output pipe 16. When small-particle quartz sand needs to be conveyed, the first driver 153 controls the rotating shaft 151 to drive the valve block 152 to deflect, and the feeding amount is adjusted according to the deflection ratio.

[0034] Optional, such as Figure 7 As shown, a pretreatment box 9 is provided on the feed inlet 11. Three rollers 91 are arranged at intervals inside the pretreatment box 9. The rollers 91 are staggered vertically. The drive end of the rollers 91 is connected to a pulley group 92. One of the rollers 91 is connected to a second driver 93.

[0035] In actual operation, the second driver 93 drives the three rollers 91 to rotate through the pulley group 92. The material accumulated on the surface of the rollers 91 falls from the gaps between the rollers 91, thereby effectively controlling the scattered falling of material and improving the separation quality.

[0036] A movable frame 17 is provided on the lower side of the first conveying pipe 12. The movable frame 17 is used to control the unloading height and help the whole equipment move freely.

[0037] The specific implementation method is as follows: Step 1: Loading. The staff pushes the equipment to the appropriate position, and the feed inlet 11 of the loading box 1 begins to feed. Step 2: Primary separation. The first air pump 43 starts to circulate the airflow in the loading box 1. After the quartz sand material falls onto the first screen plate 2, small particles fall to the lower side of the first screen plate 2 while large particles continue to roll. At the same time, dust and impurities mixed in the material are carried away and filtered by the circulating airflow. During this period, the airflow state is adjusted according to the pressure changes detected by the pressure detection module. Step 3: Secondary separation. After the material is transferred from the first screen plate 2 to the second screen plate 5, the large and small particles are further separated, so that the large particles of quartz sand are transferred to the first conveying pipe 12, while the small particles of quartz sand are transferred to the storage area of ​​the loading box 1. Step 4: Unloading. According to the melting requirements, transport the quartz sand of different sizes to the unloading box 8 in proportion. During the melting process, adjust the unloading amount according to the melting state.

[0038] Specifically, in step two, after being processed by the pretreatment box 9, the material falling onto the surface of the first screen plate 2 will not accumulate. The airflow should be such that it does not push small particles of material to move. At this time, the pressure detection module detects the stable pressure value brought about by the second partition 33 pressing the first partition 31 under the influence of airflow. The real-time pressure value detected by the pressure detection module is set to F. Comparison coefficients a and b: if F ≤ a*F, the airflow is ideal; if a*F < F < b*F, it indicates that the separation holes 34 of the first partition 31 and the second partition 33 are partially blocked, which increases the pressure generated by the airflow. At this time, it is necessary to analyze whether the separation holes 34 are intermittently blocked or completely blocked; if F ≥ b*F, it indicates that the separation holes 34 of the first partition 31 and the second partition 33 are blocked over a large area, making airflow difficult. At this time, it is necessary to determine the cause of the blockage.

[0039] Furthermore, if a*F < F < b*F, the first air pump 43 is made to intermittently deliver airflow. After several units of time, it returns to the normal delivery state. If F returns to the range of F ≤ a*F, it indicates that some small particles of quartz sand are affected by the airflow and adhere to the partition hole 34, affecting the airflow. At this time, it is necessary to consider reducing the delivery airflow rate. If F is still in the range of a*F < F < b*F, it indicates that the partition hole 34 is stuck. Without affecting the overall feeding, the blocked state can be retained for the time being.

[0040] If F ≥ b*F, first pause the rotation of roller 91 and wait for several units of time. Then check whether F changes. If F decreases and quickly returns to the range of F ≤ a*F, it indicates that the feed is too fast, causing accumulation on the surface of the first screen plate 2. At this time, the rotation speed of roller 91 should be reduced. If F decreases and returns to the range of a*F < F < b*F, then the treatment plan for this range should be followed. If F decreases but always remains in the range of F ≥ b*F, it indicates that the separation hole 34 is blocked over a large area. At this time, the airflow is reversed by the first air pump 43 to try to clear the separation hole 34. If the change of F is still not obvious after clearing, manual intervention is required.

[0041] Furthermore, the rotation sensing module is used to detect the interception of quartz sand particles by the partition hole 34. If the airflow is normal and no quartz sand particles are carried in the airflow, the rotating sleeve 36 will remain in a stable rotation state. When the interception effect of the partition hole 34 is not ideal, the quartz sand particles carried in the airflow will bring a thrust when they hit the surface of the arc-shaped spring 361, which will cause the rotating sleeve 36 to rotate intermittently faster. The interception effect of the partition hole 34 is evaluated based on the frequency of the rotation acceleration.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A loading and unloading device for quartz tube production, comprising a loading box (1), characterized in that, The upper side of the loading box (1) is provided with a feed inlet (11), and a first screen plate (2) is fixed on the lower side of the feed inlet (11). The first screen plate (2) is inclined and a separation component (3) is provided at the high end. The separation component (3) is connected to several airflow pipes (41). The other end of the airflow pipes (41) is connected to the low end of the first screen plate (2). A filter (42) and a first air pump (43) are arranged in sequence on the airflow pipes (41). The separation component (3) includes a first partition (31), which is fixed on the first screen plate (2). The upper side of the first partition (31) is connected to the inner wall of the top of the loading box (1). Several springs (32) are connected to the side of the first partition (31) facing the first screen plate (2). The other end of the springs (32) is connected to a second partition (33). A pressure detection module is provided at the connection end of the springs (32) and the first partition (31). Several staggered partition holes (34) are provided on the first partition (31) and the second partition (33).

2. The loading and unloading equipment for quartz tube production according to claim 1, characterized in that, A long rod (35) is fixed inside the loading box (1) relative to the outside of the first partition (31). A rotating sleeve (36) is sleeved on the outside of the long rod (35). A rotation sensing module is provided between the long rod (35) and the rotating sleeve (36). Several arc-shaped spring pieces (361) are provided around the circumference of the rotating sleeve (36). An arc-shaped baffle (37) is provided on the inner wall of the loading box (1) in conjunction with the rotating sleeve (36).

3. The loading and unloading equipment for quartz tube production according to claim 2, characterized in that, A second screen plate (5) is provided on the lower side of the first screen plate (2). The second screen plate (5) is inclined. The loading box (1) is provided with an outlet at the lower end of the second screen plate (5). An arc-shaped guide plate (6) is provided between the first screen plate (2) and the second screen plate (5). A sealing plate (7) is provided between the second screen plate (5) and the arc-shaped guide plate (6).

4. The loading and unloading equipment for quartz tube production according to claim 3, characterized in that, The second sieve plate (5) has sieve holes that are the same as those of the first sieve plate (2). The lower end of the first sieve plate (2) is open and connected to the upper end of the second sieve plate (5). The lower side of the second sieve plate (5) is a storage area for small-particle quartz sand.

5. A loading and unloading device for quartz tube production according to claim 4, characterized in that, The outlet of the loading box (1) is connected to a first conveying pipe (12), and the storage area of ​​the loading box (1) is connected to a second conveying pipe (13) on both sides.

6. A loading and unloading device for quartz tube production according to claim 5, characterized in that, An auger (121) is installed inside the first conveying pipe (12), and the auger (121) is connected to a drive assembly (122). An unloading box (8) is connected to the upper side of the first conveying pipe (12).

7. A loading and unloading device for quartz tube production according to claim 6, characterized in that, The second delivery pipe (13) includes a first branch pipe (131), a connecting pipe (132) and a second branch pipe (133). The first branch pipe (131) and the second branch pipe (133) are respectively fixed on both sides of the first delivery pipe (12). The two ends of the connecting pipe (132) are respectively connected to the first branch pipe (131) and the second branch pipe (133). A second air pump (14) is respectively installed on the first branch pipe (131) and the second branch pipe (133).

8. A loading and unloading device for quartz tube production according to claim 7, characterized in that, A steering box (15) is provided at the junction of the first branch pipe (131) and the connecting pipe (132). An output pipe (16) is provided on the steering box (15). The output pipe (16) is connected to the unloading box (8). A rotating shaft (151) is provided inside the steering box (15). A valve block (152) is fixed on the rotating shaft (151). The rotating shaft (151) is connected to a first driver (153).

9. A loading and unloading device for quartz tube production according to claim 8, characterized in that, A pretreatment box (9) is provided on the feed inlet (11). Three rollers (91) are arranged at intervals in the pretreatment box (9). The rollers (91) are staggered vertically. The drive end of the rollers (91) is connected to a pulley group (92). One of the rollers (91) is connected to a second driver (93).

10. A method of using a loading and unloading device for quartz tube production according to claim 9, characterized in that, The specific method is as follows: Step 1: Loading. The staff pushes the equipment to the appropriate position, and the feed inlet (11) of the loading box (1) begins to feed. Step 2: Primary separation. The first air pump (43) starts to start the airflow circulation in the loading box (1). After the quartz sand material falls to the first screen plate (2), during the rolling process on its surface, the small particles fall to the lower side of the first screen plate (2), while the large particles continue to roll. At the same time, the dust and impurities mixed in the material are carried away and filtered by the circulating airflow. During this period, the airflow state is adjusted according to the pressure change detected by the pressure detection module. Step 3: Secondary separation. After the material is transferred from the first screen plate (2) to the second screen plate (5), the large and small particles are further separated, so that the large particles of quartz sand are transferred to the first conveying pipe (12), and the small particles of quartz sand are transferred to the storage area of ​​the loading box (1). Step 4: Unloading. According to the melting requirements, the quartz sand of different sizes is transported to the unloading box (8) in proportion. During the melting process, the unloading amount is adjusted according to the melting state.

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