A rapid drying device for photovoltaic silicon wafers

Abstract

The application discloses a kind of photovoltaic silicon wafer rapid drying equipment, including oven, the inner wall of oven is rotatably connected with transmission spiral pipe, the inner wall of transmission spiral pipe is rotatably connected with vertical setting spin shaft, the top of oven is installed with motor, transmission spiral pipe and spin shaft are all driven by motor, the bottom end of spin shaft is installed with the spin seal seat rotatably connected with oven, the eccentric position of the bottom surface of spin seal seat is fixedly installed with hanger, the inner wall of hanger is rotatably connected with inner shaft, the circumferential surface of transmission spiral pipe is rotatably connected with inner shaft by belt.The application works, motor is with set state output rotation speed, motor output rotation speed, on the one hand, drive batch photovoltaic silicon wafer occurs revolution motion, on the other hand, drive photovoltaic silicon wafer occurs self-rotation in the basket body, to change the heating angle and heating intensity of photovoltaic silicon wafer cyclically.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solar cells, in particular to the technical field of solar cell production, and more particularly to a rapid drying device for photovoltaic silicon wafers. BACKGROUND

[0002] Photovoltaic power generation has become a technology that can replace fossil energy, which relies on the continuous reduction of production costs and the improvement of photoelectric conversion efficiency in recent years. At present, crystalline silicon solar cells using high-purity silicon as the main raw material are the mainstream products, accounting for more than 80%. In a crystalline silicon solar power generation system, one of the most core steps to achieve photoelectric conversion is the process of processing crystalline silicon into a cell wafer that can achieve photoelectric conversion. Therefore, the photoelectric conversion efficiency of the cell wafer has become a key indicator of the technical level of the crystalline silicon solar power generation system, and it puts forward higher requirements for the preparation process of the solar cell wafer.

[0003] In the production process of solar cells, the surface of the silicon wafer processed through multiple processes such as slicing, grinding, chamfering, and polishing has adsorbed various impurities. Before diffusion, cleaning is needed to eliminate various types of pollutants, and the cleanliness of the cleaning directly affects the yield and reliability of the finished product. The silicon wafer needs to be dried in time after the above cleaning to remove the surface moisture and effectively avoid the problem of water stain marks on the surface of the silicon wafer affecting the subsequent surface treatment. Therefore, in the preparation process of photovoltaic silicon wafers, efficient drying of the silicon wafer is one of the important processes.

[0004] In the prior art, a patent document with publication number CN112902631A discloses a drying device for crystalline photovoltaic silicon wafer processing, which includes a base, a pressing and limiting mechanism, a support bar, and a second motor. The left side of the upper end surface of the base is fixed with a first support plate, a second support plate, and a third support plate, and the first support plate and the second support plate are respectively located on the left and right sides of the third support plate. A first conveyor belt device is rotatably connected between the first support plate and the second support plate. A gas conveying channel is fixed between the third support plates, and the inner end surface of the gas conveying channel penetrates a spray head. After the crystalline photovoltaic silicon wafer is placed on the first conveyor belt device, the crystalline photovoltaic silicon wafer can move to the right under the action of the rotation of the first conveyor belt device, and the spray head blows inward, which facilitates the preliminary air drying of the surface of the crystalline photovoltaic silicon wafer. At this time, the roller rotates counterclockwise, which facilitates the movement of the crystalline photovoltaic silicon wafer to the right. The compression spring plays a supporting role on the abutting block, so that the roller can roll tightly on the surface of the crystalline photovoltaic silicon wafer, and the crystalline photovoltaic silicon wafer is pressed and limited. However, the above-mentioned device uses a static drying structure for drying the cell wafer, which has limitations in improving the drying efficiency of the cell. SUMMARY

[0005] In view of the deficiencies of the prior art, the photovoltaic silicon wafer rapid drying equipment aims to provide a photovoltaic silicon wafer rapid drying equipment, when the photovoltaic silicon wafer rapid drying equipment works, the motor outputs the rotating speed in the set state, after the motor outputs the rotating speed, on one hand, the motor drives the batch photovoltaic silicon wafers to rotate, on the other hand, the motor drives the photovoltaic silicon wafers to spin in the basket body, so as to change the heating angle and the heating intensity of the photovoltaic silicon wafers cyclically.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme.

[0007] A photovoltaic silicon wafer rapid drying equipment adopts the technical scheme that the photovoltaic silicon wafer rapid drying equipment comprises an oven.

[0008] The inner wall of the oven is rotationally connected with a transmission spiral pipe, and the inner wall of the transmission spiral pipe is rotationally connected with a vertical rotating shaft.

[0009] The top of the oven is provided with a motor, the transmission spiral pipe and the rotating shaft are both driven by the motor, the bottom end of the rotating shaft is provided with a rotating sealing seat rotationally connected with the oven, the bottom surface of the rotating sealing seat is fixedly provided with a hanger at an eccentric position, the inner wall of the hanger is rotationally connected with an inner shaft, and the peripheral surface of the transmission spiral pipe is transmissionally connected with the inner shaft through a belt.

[0010] The inner wall of the hanger is rotationally connected with two symmetrical guard rollers for limiting the photovoltaic silicon wafers, the bottom of the hanger is provided with a lower heat emitting component opposite to the basket module in the air outlet direction, the inside of the oven is provided with a heat circulation component in communication with the lower heat emitting component, and the inside of the oven is fixedly provided with an external heat supplying component.

[0011] As a preferred scheme, the end surface of the oven is fixedly provided with a single-chip microcomputer, the surface of the oven and the position corresponding to the basket module are hingedly provided with a box door, the inside of the oven is fixedly provided with a temperature probe for detecting the temperature inside the oven, and the port of the temperature probe is electrically connected with the single-chip microcomputer.

[0012] As a preferred scheme, the external heat supplying component comprises a hot air blower fixed to the side surface of the oven and a wind distribution ring cavity opened in the upper part of the oven, the inside of the oven is provided with a plurality of groups of external heat injection holes arranged in a circumferential array and horizontally arranged, and one end of the air inlet of the hot air blower is provided with a filter.

[0013] As a preferred scheme, the lower heat components respectively include a louver frame fixed to the surface of the hanger, a half pinion shaft rotationally connected to the inner wall of the hanger, and a full pinion shaft, the inner wall of the louver frame is rotationally connected to a group of linearly arrayed louver air pipes, a torsion spring is fixedly arranged at the rotationally connected position of each louver air pipe and the louver frame, a group of inner heat injection holes linearly arrayed and having an air outlet direction towards the basket module are arranged on the top surface of the louver air pipe, a ventilation pipe is fixedly installed on the side surface of the louver frame, the open end of each louver air pipe is rotationally communicated with the ventilation pipe, the surface of the ventilation pipe is communicated with the heat circulation component, the peripheral surface of the full pinion shaft is drivingly connected with a group of louver air pipes through a chain belt, the surface of the full pinion shaft is drivingly connected with the inner shaft through the half pinion shaft, and the full pinion shaft is driven by the inner shaft to rotate back and forth.

[0014] As a preferred scheme, the tail end of the half pinion shaft is fixedly installed with an outer bevel gear, the peripheral surface of the inner shaft is fixedly installed with an inner bevel gear drivingly connected with the outer bevel gear, the front end of the half pinion shaft is fixedly installed with a half gear, and the peripheral surface of the full pinion shaft is fixedly installed with a full gear drivingly connected with the half gear.

[0015] As a preferred scheme, the basket module respectively includes a bracket fixed to the surface of the hanger and a basket body slidingly connected to the top of the bracket, the two side surfaces of the basket body are fixedly installed with air inlet pipes, the peripheral surfaces of the two air inlet pipes are fixedly installed with a group of linearly arrayed blocking rings, the interiors of the blocking rings are respectively arranged with a group of regularly distributed straight heat injection holes communicated with the air inlet pipes, the inner walls of the two air inlet pipes are rotationally connected with guide clamping shafts, the tail ends of the air inlet pipes are fixedly communicated with air inlet joints, the tail ends of the guide clamping shafts are installed with guide discs, the peripheral surfaces of the guide clamping shafts and the positions corresponding to the blocking rings are fixedly provided with limiting portions for single photovoltaic silicon wafer limiting transmission, the back surface of the hanger is installed with an auxiliary heating assembly for driving the guide clamping shafts and supplying heat to the air inlet joints, and the surface of the bracket is rotationally connected with a lock pin for limiting the position of the basket body.

[0016] As a preferred scheme, the auxiliary heating assembly respectively includes an auxiliary heating pipe fixed to the back surface of the hanger and communicated with the heat circulation component, a main shaft, and two symmetrically arranged auxiliary shafts, the peripheral surface of the main shaft is drivingly connected with the two auxiliary shafts through a chain, the tail end of the main shaft is fixedly installed with a passive bevel gear, the peripheral surface of the inner shaft is fixedly installed with a driving bevel gear meshing with the passive bevel gear, the end portions of the two auxiliary shafts are fixedly installed with auxiliary driving discs for driving the guide discs, and the surface of the auxiliary heating pipe is communicated with two symmetrically arranged heat supply pipes slidingly communicated with the air inlet joints.

[0017] As a preferred scheme, the two guide clamping shafts are coaxially arranged with the blocking rings at the two air inlet pipes, and the surfaces of the guide discs and the auxiliary driving discs are fixedly provided with friction lines.

[0018] As a preferred embodiment, the heat circulation components include a return air channel located at the axis of the rotating shaft and open at the bottom, and a return air duct fixed inside the oven. One end of the air inlet of the return air duct is rotatably connected to the return air channel, and one end of the air outlet of the return air duct is rotatably connected to a ventilation connector. The surface of the ventilation connector is rotatably connected to a distribution duct. The surface of the distribution duct is fixedly connected to an auxiliary heating pipe and a ventilation duct, respectively. An axial flow fan is installed inside the return air duct.

[0019] As a preferred embodiment, both the basket module and the oven are made of engineering plastics.

[0020] Compared with the prior art, the present invention has the following beneficial effects: When the present invention is working, the motor outputs a speed in a set state. After the motor outputs the speed, it drives a batch of photovoltaic silicon wafers to revolve on the one hand, and drives the photovoltaic silicon wafers to spin in the basket body on the other hand, thereby cyclically changing the heating angle and heating intensity of the photovoltaic silicon wafers. Through the repeated changes in the heating angle and heating intensity during the cell drying process, the drying efficiency and drying uniformity of the cells are effectively improved. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a photovoltaic silicon wafer rapid drying device according to the present invention;

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the cross-sectional structure;

[0023] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the structure of the rotary seal seat, air inlet pipe, and louver frame of the present invention;

[0025] Figure 5 For the present invention Figure 4 A magnified schematic diagram of the local structure at point B;

[0026] Figure 6 This is a schematic diagram of the structure of the guard roller, locking pin, and bracket of the present invention;

[0027] Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure at point C in the middle;

[0028] Figure 8 For the present invention Figure 6 A magnified schematic diagram of the local structure at point D;

[0029] Figure 9 This is a schematic diagram of the structure of the air inlet pipe and the basket body of the present invention;

[0030] Figure 10 For the invention Figure 9 Local enlarged structure schematic view at E in the present application.

[0031] In the figure: 1, oven; 2, transmission coil; 3, rotating shaft; 4, motor; 5, rotating seal seat; 6, hanger; 7, inner shaft; 8, guard roller; 9, single-chip microcomputer; 10, oven door; 11, temperature probe; 12, hot air blower; 13, air distribution ring cavity; 14, outer hot nozzle; 15, louver frame; 16, half pinion; 17, full pinion; 18, louver air pipe; 19, torsional spring; 20, inner hot nozzle; 21, ventilation pipe; 22, half gear; 23, full gear; 24, bracket; 25, basket body; 26, air inlet pipe; 27, retaining ring; 28, direct hot nozzle; 29, guide clamp shaft; 30, air inlet joint; 31, guide disc; 32, auxiliary heating pipe; 33, main shaft; 34, auxiliary disc; 35, heating pipe; 36, air return pipe; 37, ventilation joint; 38, air distribution pipe; 39, axial flow induced draft fan; 40, locking pin. DETAILED DESCRIPTION

[0032] The present application will be further described and explained with reference to the specific embodiments and the accompanying drawings of the specification:

[0033] Please refer to Figures 1-10 , the present application provides a kind of photovoltaic silicon wafer rapid drying equipment, including oven 1, the end surface of oven 1 is fixedly installed with single-chip microcomputer 9, the inside of oven 1 is fixedly installed with temperature probe 11 for detecting the temperature of the inside of oven 1 to be used for real-time monitoring the temperature data of the inside of oven 1, the port of temperature probe 11 is electrically connected with single-chip microcomputer 9;

[0034] The inner wall of oven 1 is rotatably connected with transmission coil 2, the inner wall of transmission coil 2 is rotatably connected with vertically arranged rotating shaft 3, the top of oven 1 is installed with motor 4, and transmission coil 2 and rotating shaft 3 are both driven by motor 4.

[0035] The bottom end of rotating shaft 3 is installed with rotating seal seat 5 rotatably connected with oven 1, the bottom surface of rotating seal seat 5 is fixedly installed with hanger 6 at eccentric position, the inner wall of hanger 6 is rotatably connected with inner shaft 7, and the peripheral surface of transmission coil 2 is drivingly connected with inner shaft 7 through belt.

[0036] The inside of hanger 6 is clamped with basket module for supporting batch photovoltaic silicon wafer, and photovoltaic silicon wafer is driven and self-rotated by basket module, and the surface of oven 1 and the position corresponding to basket module are hingedly connected with oven door 10, and the setting of oven door 10 is conducive to the rapid removal of basket module.

[0037] In specific embodiments, the basket module comprises a bracket 24 fixed on the surface of the hanger 6, a basket body 25 slidingly connected above the bracket 24, and air inlet pipes 26 fixedly installed on the two side surfaces of the basket body 25. A group of linearly arrayed blocking rings 27 are fixedly installed on the circumferential surface of each air inlet pipe 26. A group of straight heating injection holes 28 regularly distributed and communicating with the air inlet pipes 26 are formed in the inner part of each blocking ring 27.

[0038] The inner wall of each air inlet pipe 26 is rotatably connected with a guide clamp shaft 29 coaxially arranged with the blocking ring 27 at the position of the air inlet pipe 26. The tail end of the air inlet pipe 26 is fixedly connected with an air inlet connector 30. The tail end of each guide clamp shaft 29 is provided with a guide disc 31. The circumferential surface of the guide clamp shaft 29 is fixedly provided with a limiting part for single photovoltaic silicon wafer limiting transmission at the position corresponding to the space between two blocking rings 27.

[0039] In specific embodiments, the back surface of the hanger 6 is provided with an auxiliary heating assembly for driving the guide clamp shaft 29 and supplying heat to the air inlet connector 30. The surface of the bracket 24 is rotatably connected with a lock pin 40 for limiting the position of the basket body 25.

[0040] When the basket module is installed on the bracket 24, the position of the basket body 25 on the bracket 24 can be effectively limited by the lock pin 40. When it is needed to move the basket body 25 out of the bracket 24, the lock pin 40 is rotated, thereby facilitating the rapid removal of the basket body 25.

[0041] The auxiliary heating assembly comprises an auxiliary heating pipe 32 fixed on the back surface of the hanger 6 and communicating with the heat circulation part, a main shaft 33, and two symmetrically arranged auxiliary shafts. The circumferential surface of the main shaft 33 is drivingly connected with the two auxiliary shafts through a chain. The tail end of the main shaft 33 is fixedly provided with a driven bevel gear. The circumferential surface of the inner shaft 7 is fixedly provided with a driving bevel gear meshing with the driven bevel gear. The end part of each auxiliary shaft is fixedly provided with an auxiliary driving disc 34 for driving the guide disc 31. The surface of each guide disc 31 and auxiliary driving disc 34 is fixedly provided with a friction pattern. The surface of the auxiliary heating pipe 32 is provided with two symmetrically arranged heat supply pipes 35 slidingly communicating with the air inlet connector 30.

[0042] The inner wall of the hanger 6 is rotatably connected with two symmetrically arranged guard rollers 8 for limiting the photovoltaic silicon wafer. The guard rollers 8 are made of silica gel. The position of the guard rollers 8 can effectively prevent the photovoltaic silicon wafer from being thrown out of the basket.

[0043] In specific embodiments, the bottom of the hanger 6 is provided with a lower heat outlet component opposite to the basket module.

[0044] The lower heat outlet component comprises a louver frame 15 fixed to the surface of the hanger 6, a half pinion shaft 16 rotatably connected to the inner wall of the hanger 6, and a full pinion shaft 17, the inner wall of the louver frame 15 is rotatably connected to a group of linearly arrayed louver air pipes 18, a torsion spring 19 is fixedly arranged at the rotatable connection of each louver air pipe 18 and the louver frame 15, a group of inner heat injection holes 20 are arranged on the top surface of the louver air pipe 18 in a linear array and have an air outlet direction towards the tray module, a ventilation pipe 21 is fixedly installed on the side surface of the louver frame 15, the open end of each louver air pipe 18 is rotatably communicated with the ventilation pipe 21, the surface of the ventilation pipe 21 is communicated with the heat circulation component, the peripheral surface of the full pinion shaft 17 is drivingly connected with a group of louver air pipes 18 through a chain belt, the surface of the full pinion shaft 17 is drivingly connected with the inner shaft 7 through the half pinion shaft 16, and the full pinion shaft 17 is driven to rotate back and forth by the inner shaft 7.

[0045] The tail end of the half pinion shaft 16 is fixedly installed with an outer bevel gear, the peripheral surface of the inner shaft 7 is fixedly installed with an inner bevel gear drivingly connected with the outer bevel gear, the front end of the half pinion shaft 16 is fixedly installed with a half gear 22, and the peripheral surface of the full pinion shaft 17 is fixedly installed with a full gear 23 drivingly connected with the half gear 22;

[0046] Through the arrangement of the half gear 22, the full gear 23 and the torsion spring 19, when the inner shaft 7 rotates, the louver air pipe 18 can reciprocate to distribute air within a set angle range, the air outlet direction of the louver air pipe 18 is changed, the wind receiving angle of the photovoltaic silicon wafer is changed back and forth, and the drying efficiency and uniformity of the photovoltaic silicon wafer are effectively improved through the change of the wind receiving angle.

[0047] In specific embodiments, the inside of the oven 1 is installed with a heat circulation component communicated with the lower heat outlet component, and the inside of the oven 1 is fixedly installed with an outer heat supply component.

[0048] The outer heat supply component comprises a hot air blower 12 fixed to the side surface of the oven 1 and a wind distribution ring cavity 13 arranged on the upper part of the oven 1, a plurality of groups of outer heat injection holes 14 are arranged on the inside of the oven 1 in a circumferential array and horizontally, and a filter is arranged at one end of the air inlet of the hot air blower 12; when the hot air blower 12 works, it works in a constant temperature mode, and the filter is used to ensure that the air outlet of the hot air blower 12 is clean and dust-free.

[0049] The heat circulation component comprises a back air flow channel arranged at the axis position of the rotating shaft 3 and having an open bottom end, and a back air pipe 36 fixed to the inside of the oven 1, one end of the air inlet of the back air pipe 36 is rotatably communicated with the back air flow channel, one end of the air outlet of the back air pipe 36 is rotatably communicated with a ventilation connector 37, the surface of the ventilation connector 37 is rotatably communicated with a branch air pipe 38, the surface of the branch air pipe 38 is fixedly communicated with the auxiliary heating pipe 32 and the ventilation pipe 21 respectively, and an axial flow air blower 39 is installed in the inside of the back air pipe 36.

[0050] The basket module and the oven 1 are made of engineering plastic material, which can prevent the negative influence of metal ion precipitation on the photovoltaic silicon wafer.

[0051] The working principle of the present application is that;

[0052] The device is mainly suitable for batch drying operation of photovoltaic silicon wafers. Before the drying operation, the batch photovoltaic silicon wafers are regularly placed on the basket body 25, and the photovoltaic silicon wafers are separated by the blocking ring 27. The straight heating nozzle 28 is opposite to the photovoltaic silicon wafers. Then, the basket body 25 carrying the batch photovoltaic silicon wafers is placed on the bracket 24 and locked by the locking pin 40. After locking, the door 10 is closed. Then, the motor 44 outputs the set speed. After the motor 44 outputs the speed, the batch photovoltaic silicon wafers are driven to rotate, and the photovoltaic silicon wafers are driven to spin in the basket body 25, so as to change the heating angle and intensity of the photovoltaic silicon wafers. During the drying operation, when the temperature in the oven 1 reaches the set value, the air heater 12 stops working. After the air heater 12 stops working, the axial flow fan 39 supplies in the circulation mode. When the temperature in the oven 1 is lower than the set value, the air heater 12 starts to work, so as to keep the temperature in the oven 1 constant. When the air heater 12 works, it periodically reverses and discharges air outward, so as to discharge the moisture in the oven 1 outward.

[0053] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not limited to the scope of protection of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A photovoltaic silicon wafer rapid drying apparatus, characterized by: It includes oven (1); The inner wall of the oven (1) is rotatably connected with a transmission coil (2), the inner wall of the transmission coil (2) is rotatably connected with a vertical rotating shaft (3), the top of the oven (1) is provided with a motor (4), and the transmission coil (2) and the rotating shaft (3) are driven by the motor (4). The bottom end of the rotating shaft (3) is provided with a rotating seal seat (5) rotatably connected with the oven (1), the eccentric position of the bottom surface of the rotating seal seat (5) is fixedly provided with a hanger (6), the inner wall of the hanger (6) is rotatably connected with an inner shaft (7), and the peripheral surface of the transmission coil (2) is drivingly connected with the inner shaft (7) through a belt. The inner wall of the hanger (6) is rotatably connected with two symmetrical guard rollers (8) for limiting the photovoltaic silicon wafer, the bottom of the hanger (6) is provided with a lower heat emitting component opposite to the basket module, the inside of the oven (1) is provided with a heat circulation component in communication with the lower heat emitting component, and the inside of the oven (1) is fixedly provided with an external heat supply component. The lower heat emitting component comprises a louver frame (15) fixed to the surface of the hanger (6), a half tooth shaft (16) rotatably connected to the inner wall of the hanger (6) and a full tooth shaft (17), the inner wall of the louver frame (15) is rotatably connected with a group of linear array distributed louver air pipes (18), a torsional spring (19) is fixedly arranged at the rotatable connection between each louver air pipe (18) and the louver frame (15), a group of linear array distributed inner heat injection holes (20) are formed in the top surface of the louver air pipe (18), the side surface of the louver frame (15) is fixedly provided with a ventilation pipe (21), the opening end of each louver air pipe (18) is rotatably communicated with the ventilation pipe (21), the surface of the ventilation pipe (21) is communicated with the heat circulation component, the peripheral surface of the full tooth shaft (17) is drivingly connected with a group of louver air pipes (18) through a chain belt, the surface of the full tooth shaft (17) is drivingly connected with the inner shaft (7) through the half tooth shaft (16), and the full tooth shaft (17) is driven and reciprocatingly rotated by the inner shaft (7). The tail end of the half tooth shaft (16) is fixedly provided with an outer bevel gear, the peripheral surface of the inner shaft (7) is fixedly provided with an inner bevel gear drivingly connected with the outer bevel gear, the front end of the half tooth shaft (16) is fixedly provided with a half tooth gear (22), and the peripheral surface of the full tooth shaft (17) is fixedly provided with a full tooth gear (23) drivingly connected with the half tooth gear (22).

2. The photovoltaic silicon wafer rapid drying apparatus according to claim 1, characterized in that: The end surface of the oven (1) is fixedly provided with a single-chip microcomputer (9), the surface of the oven (1) and the position corresponding to the basket module are hingedly provided with a box door (10), the inside of the oven (1) is fixedly provided with a temperature probe (11) for detecting the temperature inside the oven (1), and the port of the temperature probe (11) is electrically connected with the single-chip microcomputer (9).

3. The photovoltaic silicon wafer rapid drying apparatus according to claim 2, characterized in that: The external heating component respectively comprises a hot air blower (12) fixed to the side of the oven (1) and a cloth air ring cavity (13) opened in the upper part of the oven (1), the inside of the oven (1) is provided with a plurality of groups of external heating spray holes (14) arranged in a circumferential array and arranged horizontally, and one end of the air inlet of the hot air blower (12) is provided with a filter.

4. The photovoltaic silicon wafer rapid drying apparatus according to claim 1, characterized in that: The basket module respectively comprises a bracket (24) fixed to the surface of the hanger (6), and a basket body (25) slidingly connected above the bracket (24), both sides of the basket body (25) are fixedly provided with an air inlet pipe (26), the circumferential surface of the two air inlet pipes (26) is fixedly provided with a group of linearly arrayed blocking rings (27), the inside of each blocking ring (27) is provided with a group of straight heating spray holes (28) regularly distributed and communicated with the air inlet pipe (26), the inner wall of the two air inlet pipes (26) is rotatably connected with a guide clamp shaft (29), the tail end of the air inlet pipe (26) is fixedly communicated with an air inlet connector (30), the tail end of the two guide clamp shafts (29) is provided with a guide disc (31), the circumferential surface of the guide clamp shaft (29) and the position corresponding to the blocking ring (27) are fixedly provided with a limiting portion for single photovoltaic silicon wafer limiting transmission, the back surface of the hanger (6) is provided with an auxiliary heating assembly for driving the guide clamp shaft (29) and heating the air inlet connector (30), and the surface of the bracket (24) is rotatably connected with a lock pin (40) for limiting the position of the basket body (25).

5. The photovoltaic silicon wafer rapid drying apparatus according to claim 4, characterized in that: The auxiliary heating assembly respectively comprises an auxiliary heating pipe (32) fixed to the back surface of the hanger (6) and communicated with the heat circulation component, a main shaft (33) and two symmetrically arranged auxiliary shafts, the circumferential surface of the main shaft (33) is drivingly connected with the two auxiliary shafts through a chain, the tail end of the main shaft (33) is fixedly provided with a driven bevel gear, the circumferential surface of the inner shaft (7) is fixedly provided with a driving bevel gear meshing with the driven bevel gear, the end of the two auxiliary shafts is fixedly provided with an auxiliary driving disc (34) for driving the guide disc (31), and the surface of the auxiliary heating pipe (32) is communicated with two symmetrically arranged heating pipes (35) slidingly communicated with the air inlet connector (30).

6. The photovoltaic silicon wafer rapid drying apparatus according to claim 5, characterized in that: The two guide clamp shafts (29) are coaxially arranged with the blocking rings (27) at the positions of the two air inlet pipes (26), and the surfaces of the guide disc (31) and the auxiliary driving disc (34) are fixedly provided with friction lines.

7. The photovoltaic silicon wafer rapid drying apparatus according to claim 6, characterized in that: The heat circulation component respectively comprises a return air flow channel opened at the axis position of the rotating shaft (3) and having an open bottom end and a return air pipe (36) fixed to the inside of the oven (1), one end of the air inlet of the return air pipe (36) is rotatably communicated with the return air flow channel, one end of the air outlet of the return air pipe (36) is rotatably communicated with a ventilation connector (37), the surface of the ventilation connector (37) is rotatably communicated with a branch air pipe (38), the surface of the branch air pipe (38) is respectively fixedly communicated with the auxiliary heating pipe (32) and the ventilation pipe (21), and the inside of the return air pipe (36) is provided with an axial flow air blower (39).

8. The photovoltaic silicon wafer rapid drying apparatus according to claim 7, characterized in that: The basket module and the oven (1) are both made of engineering plastic.

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