CN215366063U - Large-size silicon single crystal slag extraction device - Google Patents

Abstract

The utility model discloses a large-size silicon single crystal slag extraction device, and relates to the technical field of single crystal processing slag extraction. The rapid cooling type water cooling device comprises a precipitation crucible, auxiliary guide sliding rails are welded at four ends of the precipitation crucible, a matched water cooling screen is connected to the outer sides of the auxiliary guide sliding rails in a sliding mode, two ends of the matched water cooling screen are fixedly connected with rapid cooling type water cooling screen structures, and two sides of the matched water cooling screen are fixedly connected with automatic position adjusting supporting structures. According to the utility model, through the design of the automatic positioning support structure, the device is convenient for driving the water-cooling screen to carry out automatic height adjustment, and is convenient for controlling the specific numerical value of the adjusted height, so that after the last barrel of material is added, the position of the water-cooling screen is gradually adjusted, more non-silicon and insoluble matters are separated out, the drainage survival rate is improved, and through the design of the quick-cooling water-cooling screen structure, the device is convenient for forming efficient and stable refrigeration temperature derivation for the water-cooling screen, and the efficiency of crystal separation from low-temperature slag is greatly improved.

Description

Large-size silicon single crystal slag extraction device

Technical Field

The utility model relates to the technical field of single crystal processing slag extraction, in particular to a large-size silicon single crystal slag extraction device.

Background

In the single crystal slag extraction process, after the last barrel of material is added, the material is high-temperature-melted in the furnace, the position of the water-cooling screen is at the upper limit, the height of the water-cooling screen is not convenient to adjust in the use process, the cooling line cannot be properly adjusted in the application process, the crucible material block is melted too fast, the precipitation amount of impurities or non-silicon and indissolvable substances in the material block is less, the broken lines in the crystal pulling process are more, the discharge survival rate is lower, and the precipitation efficiency is influenced because the self-induced heat circulation derivation performance of the water-cooling screen in the use process is poorer.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a large-size silicon single crystal slag extraction device, which solves the problems that the height of a water-cooling screen is not convenient to adjust in the using process, a cooling line cannot be properly adjusted in the application process, a crucible material block is melted too fast, the precipitation amount of impurities or non-silicon and indissoluble substances on the surface of the material block is less, the broken line is more in the crystal pulling process, and the discharge introduction survival rate is lower in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: jumbo size silicon single crystal slag extraction device, including appearing the crucible, it has supplementary guide slide rail all to weld at four ends of appearing the crucible, the outside sliding connection of supplementary guide slide rail has the cooperation water-cooling screen, the both ends fixedly connected with quick-cooling type water-cooling screen structure of cooperation water-cooling screen, the automatic bearing structure of transferring of the equal fixedly connected with in both sides of cooperation water-cooling screen, automatic bearing structure of transferring includes that the ration is derived and is adjusted the structure and finely tune high locking location structure, the one end fixedly connected with fine setting high locking location structure of structure is derived to the ration.

Preferably, the quantitative derivation and adjustment structure comprises a first positioning support plate, a first motor, a screw rod, a matched polished rod, a second positioning support plate, a linkage lifting power guide plate, a first folding push rod and a second folding push rod, wherein one end of the first positioning support plate is fixedly connected with the first motor through a screw, the output end of the first motor is fixedly connected with the screw rod, one side of the other end of the first positioning support plate is welded with the matched polished rod, the other end of the matched polished rod is welded with the second positioning support plate, the other end of the screw rod is rotatably connected with the second positioning support plate, two sides of the second positioning support plate are rotatably connected with the first folding push rod, the outer sides of the screw rod and the matched polished rod are movably connected with the linkage lifting power guide plate, two sides of the linkage lifting power guide plate are rotatably connected with the second folding push rod, the second folding push rod and the first folding push rod are in cross rotating connection.

Preferably, the quantitative derivation regulation structure further comprises a matching sliding plate, a guide polished rod, a third positioning plate and a lifting guide plate, wherein the matching sliding plate is rotatably connected to the top end of the first folding push rod, the third positioning plate is rotatably connected to the top end of the second folding push rod, the lifting guide plate is welded to the top end of the third positioning plate, the third positioning plate is also welded to the bottom end of the other end of the lifting guide plate, the guide polished rod is welded between the third positioning plates, and the matching sliding plate is in sliding connection with the guide polished rod.

Preferably, the linkage lifting power guide plate is internally provided with a linkage through hole and a limiting through hole, the limiting through hole is positioned at one side of the linkage through hole, the linkage through hole is in threaded connection with the screw rod, and the limiting through hole is in sliding connection with the linkage polished rod.

Preferably, the fine adjustment height locking and positioning structure comprises a guide limit slider, a locking and positioning jack, a second motor, a toggle gear shaft, an extension L-shaped carrying plate and a hydraulic piston cylinder, wherein the locking and positioning jack is formed in one side of the guide limit slider, the top end of the guide limit slider, which is close to the locking and positioning jack, is welded with the extension L-shaped carrying plate, one side of the extension L-shaped carrying plate is fixedly connected with the hydraulic piston cylinder through a screw, one side of one end of the guide limit slider is fixedly connected with the second motor through a screw, and the output end of the second motor is fixedly connected with the toggle gear shaft.

Preferably, the fine adjustment height locking and positioning structure further comprises a locking inserted rod, a positioning adjusting rack and quantitative locking through holes, the output end of the hydraulic piston cylinder is fixedly connected with the locking inserted rod, the inside of the guide limiting slide block is connected with the positioning adjusting rack in a sliding mode, one end of the positioning adjusting rack is meshed with the stirring gear shaft and connected with the stirring gear shaft, a plurality of quantitative locking through holes are formed in the positioning adjusting rack, and two ends of the locking inserted rod are in clearance fit with the locking positioning insertion holes and the quantitative locking through holes respectively.

Preferably, quick-cooling type water-cooling screen structure carries on pipe, leads warm silica gel, quick-cooling heat dissipation circulation structure and wind-force fan including supplementary guide, supplementary guide carries on the one end of pipe and passes through screw fixedly connected with wind-force fan, supplementary guide carries on the other end of pipe fixedly connected with quick-cooling heat dissipation circulation structure and lead warm silica gel in proper order.

Preferably, the rapid cooling heat dissipation circulation structure comprises a water body tank, a semiconductor refrigeration plate, a heat conduction base block, a first pumping and discharging pump, a guiding and distributing pipe, a temperature maintaining pipe, a gap overflowing heat dissipation plate and a centralized backflow pipe, wherein the top end of the water body tank is fixedly connected with the semiconductor refrigeration plate, the inner side of the water body tank is fixedly connected with the heat conduction base block, the bottom end of the semiconductor refrigeration plate is connected with the heat conduction base block through a heat conduction pad, one end of the water body tank is fixedly connected with the first pumping and discharging pump, one side of the water body tank is fixedly connected with a second pumping and discharging pump, the output end of the first pumping and discharging pump is welded with the guiding and distributing pipe, the bottom end of the output end of the guiding and distributing pipe is welded with a plurality of temperature maintaining pipes, the outer side of the temperature maintaining pipes is welded with a gap overflowing heat dissipation plate, and the output end of the temperature maintaining pipes is welded with the input end of the centralized backflow pipe, and the output end of the centralized return pipe is connected with the second pump by welding.

Preferably, the temperature maintaining conduit and the gap overflowing heat dissipating plate are both made of copper, and a plurality of overflowing heat dissipating gap grooves are formed in the inner side of the gap overflowing heat dissipating plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the design of the automatic positioning support structure, the device is convenient for driving the water-cooling screen to carry out automatic height adjustment, and is convenient for controlling the specific numerical value of the adjusted height, so that after the last barrel of material is added, the position of the water-cooling screen is gradually adjusted, more non-silicon and insoluble matters are separated out, and the drainage survival rate is improved;

2. according to the utility model, through the design of the quick-cooling water screen structure, the device is convenient for leading out the high-efficiency and stable refrigeration temperature of the water screen, and the efficiency of crystal precipitation of low-temperature slag is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a side view of the present invention in its entirety;

FIG. 3 is a schematic view of a connection of portions of the present invention;

FIG. 4 is a schematic view of a partial structure of the automated positioning support structure of the present invention;

FIG. 5 is a schematic diagram of a partial structure of a quantitative derivation regulation structure according to the present invention;

FIG. 6 is a schematic view of a partial structure of the fine height adjustment locking and positioning structure of the present invention;

FIG. 7 is a schematic view of a partial structure of the quick cooling type water-cooling screen of the present invention;

fig. 8 is a partial structural schematic view of the rapid cooling heat dissipation cycle structure of the present invention.

In the figure: 1. separating out the crucible; 2. auxiliary guide slide rails; 3. a water-cooling screen is matched; 4. a quick-cooling water screen structure; 5. an automated positioning support structure; 6. quantitatively deducing an adjusting structure; 7. locking and positioning structure for fine adjustment height; 8. a first positioning support plate; 9. a first motor; 10. a screw; 11. a polished rod is matched; 12. a second positioning support plate; 13. the power output plate is linked and lifted; 14. a first folding push rod; 15. a second folding push rod; 16. a sliding plate is matched; 17. a guide polish rod; 18. a third location plate; 19. lifting the lead-out plate; 20. guiding a limiting slide block; 21. locking and positioning the jacks; 22. a second motor; 23. a gear shaft is shifted; 24. extending the L-shaped lapping plate; 25. a hydraulic piston cylinder; 26. locking the inserted rod; 27. positioning the adjusting rack; 28. quantitatively locking the through holes; 29. an auxiliary guide carrying pipe; 30. heat conducting silica gel; 31. a rapid cooling heat dissipation circulation structure; 32. a wind power fan; 33. a water body tank; 34. a semiconductor refrigeration plate; 35. a temperature-conducting base block; 36. a first pump; 37. leading out the shunt pipe; 38. a temperature maintenance conduit; 39. a gap overcurrent heat dissipation plate; 40. a centralized return pipe; 41. and a second pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Please refer to fig. 1-8:

jumbo size silicon single crystal slag extraction device, including appearing crucible 1, four ends that appear crucible 1 all weld have supplementary guide slide rail 2, supplementary guide slide rail 2's outside sliding connection has the cooperation water-cooling screen 3, the both ends fixedly connected with speed cold type water-cooling screen structure 4 of cooperation water-cooling screen 3, the automatic bearing structure 5 that adjusts of the equal fixedly connected with in both sides of cooperation water-cooling screen 3, automatic bearing structure 5 that adjusts includes quantitative derivation adjustment structure 6 and fine setting height locking location structure 7, the quantitative one end fixedly connected with fine setting height locking location structure 7 of deriving adjustment structure 6.

Specifically, please refer to fig. 5:

the quantitative derivation and adjustment structure 6 comprises a first positioning support plate 8, a first motor 9, a screw rod 10, a matching light rod 11, a second positioning support plate 12, a linkage lifting power guide plate 13, a first folding push rod 14 and a second folding push rod 15, wherein one end of the first positioning support plate 8 is fixedly connected with the first motor 9 through a screw, the output end of the first motor 9 is fixedly connected with the screw rod 10, one side of the other end of the first positioning support plate 8 is welded with the matching light rod 11, the other end of the matching light rod 11 is welded with the second positioning support plate 12, the other end of the screw rod 10 is rotatably connected with the second positioning support plate 12, two sides of the second positioning support plate 12 are rotatably connected with the first folding push rod 14, the outer side of the screw rod 10 and the outer side of the matching light rod 11 are movably connected with the linkage lifting power guide plate 13, two sides of the linkage lifting power guide plate 13 are rotatably connected with the second folding push rod 15, the second folding push rod 15 and the first folding push rod 14 are in cross rotating connection;

the quantitative derivation and adjustment structure 6 further comprises a matching sliding plate 16, a guide polished rod 17, a third positioning plate 18 and a lifting guide-out plate 19, the top end of the first folding push rod 14 is rotatably connected with the matching sliding plate 16, the top end of the second folding push rod 15 is rotatably connected with the third positioning plate 18, the top end of the third positioning plate 18 is welded with the lifting guide-out plate 19, the bottom end of the other end of the lifting guide-out plate 19 is also welded with the third positioning plate 18, the guide polished rod 17 is welded between the two third positioning plates 18, and the matching sliding plate 16 is slidably connected with the guide polished rod 17;

a matching through hole and a limiting through hole are formed in the linkage lifting power guide-out plate 13, the limiting through hole is located on one side of the matching through hole, the matching through hole is in threaded connection with the screw 10, and the limiting through hole is in sliding connection with the matching polished rod 11;

the first motor 9 is used for driving the screw 10 to rotate, the screw 10 is connected with the linkage lifting power output plate 13 through threads, so that the linkage lifting power output plate 13 obtains torque, and the linkage lifting power leading-out plate 13 is connected with the matching light rod 11 in a sliding way, so that the torque at the position of the linkage lifting power leading-out plate 13 is limited to form derivation power, and by the connection of the linkage lifting power leading-out plate 13 and the second folding push rod 15, the second folding push rod 15 obtains torque to complete derivation and driving, the first folding push rod 14 drives the matching slide plate 16 to slide at the guide polish rod 17 by the rotational connection of the second folding push rod 15 and the first folding push rod 14, thereby forming pushing and extruding drive in two sides, driving the fine adjustment height locking and positioning structure 7 to complete lifting through the lifting and leading-out plate 19, thereby adjusting the distribution water-cooling screen 3 from the bottom end of the precipitation crucible 1 to the highest position of the material block inside the precipitation crucible;

specifically, please refer to fig. 6:

the fine adjustment height locking and positioning structure 7 comprises a guide limiting slide block 20, a locking and positioning jack 21, a second motor 22, a toggle gear shaft 23, an extension L-shaped carrying plate 24 and a hydraulic piston cylinder 25, wherein the locking and positioning jack 21 is formed in one side of the guide limiting slide block 20, the extension L-shaped carrying plate 24 is welded at the top end of the guide limiting slide block 20 close to the locking and positioning jack 21, the hydraulic piston cylinder 25 is fixedly connected to one side of the extension L-shaped carrying plate 24 through a screw, the second motor 22 is fixedly connected to one side of one end of the guide limiting slide block 20 through a screw, and the toggle gear shaft 23 is fixedly connected to the output end of the second motor 22;

the fine adjustment height locking and positioning structure 7 further comprises a locking inserted rod 26, a positioning adjusting rack 27 and quantitative locking through holes 28, the output end of the hydraulic piston cylinder 25 is fixedly connected with the locking inserted rod 26, the inside of the guide limiting slide block 20 is slidably connected with the positioning adjusting rack 27, one end of the positioning adjusting rack 27 is meshed with the toggle gear shaft 23, a plurality of quantitative locking through holes 28 are formed in the positioning adjusting rack 27, and two ends of the locking inserted rod 26 are respectively in clearance fit with the locking positioning insertion holes 21 and the quantitative locking through holes 28;

the toggle gear shaft 23 is driven by the second motor 22 to complete rotation, so that the output quantity of the second motor 22 designed in advance is quantitatively output, the toggle gear shaft 23 is meshed with the positioning adjusting rack 27, the toggle positioning adjusting rack 27 drives different quantitative locking through holes 28 to correspond to the locking positioning insertion holes 21, the positioning adjusting rack 27 is used for driving the matched water-cooling screen 3 to reach the highest point of the precipitation crucible 1, the second motor 22 can be controlled to output reversely step by step, the position of the matched water-cooling screen 3 is gradually reduced from the highest position of a material block in the precipitation crucible 1, after the last barrel of material is added, the high-temperature material in the furnace is melted, the position of the matched water-cooling screen 3 is driven downwards step by step from the upper limit by the positioning adjusting rack 27 to move, and according to the material collapse condition in the furnace, the matched water-cooling screen 3 is reduced to be thirty-forty millimeters away from the highest position of the material block in the precipitation crucible 1, when the size of a material block reaches about two hundred millimeters, the matched water-cooling screen 3 is driven by the quantitative derivation and adjustment structure 6 and the fine adjustment height locking and positioning structure 7 to be lowered to a zero position, the heating power at the position of the precipitation crucible 1 is gradually closed, the main heating power of the precipitation crucible 1 is lowered to a seeding power which is eight kilowatts to fifteen kilowatts, the temperature is well controlled, the guide cylinder keeps a safe distance from the liquid level to be more than forty millimeters lowered until the matched water-cooling screen 3 is lowered to the zero position and then carries out slag lifting, after the positioning and adjustment rack 27 drives the matched water-cooling screen 3 to be adjusted to a proper position, the matched water-cooling screen 3 is prevented from sliding and lowering, and at the moment, the hydraulic piston cylinder 25 is utilized to derive the locking insertion rod 26 to be inserted into the locking and positioning insertion hole 21 and the inside of the quantitative locking through hole 28 corresponding to the locking and positioning insertion hole 21, so that the limiting insertion and clamping are completed;

specifically, please refer to fig. 7-8:

the quick-cooling type water-cooling screen structure 4 comprises an auxiliary guide carrying pipe 29, a temperature-conducting silica gel 30, a quick-cooling heat dissipation circulating structure 31 and a wind fan 32, wherein one end of the auxiliary guide carrying pipe 29 is fixedly connected with the wind fan 32 through a screw, and the other end of the auxiliary guide carrying pipe 29 is sequentially and fixedly connected with the quick-cooling heat dissipation circulating structure 31 and the temperature-conducting silica gel 30;

the rapid cooling heat dissipation circulation structure 31 comprises a water body box 33, a semiconductor refrigeration plate 34, a temperature conduction base block 35, a first pumping and discharging pump 36, a guiding and dividing pipe 37, a temperature maintaining pipe 38, a gap overflowing heat dissipation plate 39 and a centralized return pipe 40, wherein the top end of the water body box 33 is fixedly connected with the semiconductor refrigeration plate 34, the inner side of the water body box 33 is fixedly connected with the temperature conduction base block 35, the bottom end of the semiconductor refrigeration plate 34 is connected with the temperature conduction base block 35 through a temperature conduction pad, one end of the water body box 33 is fixedly connected with the first pumping and discharging pump 36, one side of the water body box 33 is fixedly connected with a second pumping and discharging pump 41, the output end of the first pumping and discharging pump 36 is welded with the guiding and dividing pipe 37, the bottom end of the output end of the guiding and dividing pipe 37 is welded with a plurality of temperature maintaining pipes 38, the outer side of the temperature maintaining pipes 38 is welded with the gap overflowing heat dissipation plate 39, the output end of the temperature maintaining pipes 38 is welded with the input end of the centralized return pipe 40, the output end of the centralized return pipe 40 is connected with the second pump 41 in a welding way;

the material of the temperature maintaining conduit 38 and the material of the gap overflowing cooling plate 39 are both copper, and a plurality of overflowing cooling gap slots are formed in the inner side of the gap overflowing cooling plate 39;

the heat absorbed by the crucible 1 and separated out by the water cooling screen 3 is led out by the heat conducting silica gel 30, the heat absorbed by the heat conducting silica gel 30 is led out by the gap overflow heat dissipation plate 39 through contact by the connection of the heat conducting silica gel 30 and the quick cooling heat dissipation circulating structure 31, the heat is absorbed and led out by the heat transfer principle because the gap overflow heat dissipation plate 39 is in a relatively cold state, in order to maintain the relatively cold state of the gap overflow heat dissipation plate 39, the cooling liquid in the water tank 33 is led out to the lead-out shunt pipe 37 by the first pumping and discharging pump 36, the temperature of the cooling liquid is conducted to the gap overflow heat dissipation plate 39 by the temperature maintaining pipe 38 through the matching design of the lead-out shunt pipe 37 and the temperature maintaining pipe 38, the heat of the gap overflow heat dissipation plate 39 is conducted by the concentrated return pipe 40 and the connection of the temperature maintaining pipe 38 and the second pumping and discharging pump 41, the cooling liquid is returned to the water tank 33, and the heat at the gap overflow heat dissipation plate 39 is assisted by the cooling liquid, the absorbed heat follows the cooling liquid in the water body box 33, the cooling liquid is cooled again by the cooperation of the semiconductor refrigeration plate 34 and the heat conducting base block 35, and the redundant heat at the gap overflowing heat dissipation plate 39 is taken away by wind power pumping formed by the wind power fan 32 and is always in a heat dissipation state.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. The large-size silicon single crystal slag extraction device comprises a precipitation crucible (1) and is characterized in that: four ends of appearing crucible (1) all weld supplementary guide slide rail (2), the outside sliding connection of supplementary guide slide rail (2) has the distribution water-cooling screen (3), the both ends fixedly connected with fast cold type water-cooling screen structure (4) of distribution water-cooling screen (3), the automatic positioning bearing structure (5) of the equal fixedly connected with in both sides of distribution water-cooling screen (3), automatic positioning bearing structure (5) are derived including the ration and are adjusted structure (6) and fine setting high locking location structure (7), the quantitative one end fixedly connected with fine setting high locking location structure (7) of deriving regulation structure (6).

2. The large-size silicon single crystal slag extraction device according to claim 1, wherein: the quantitative derivation and adjustment structure (6) comprises a first positioning support plate (8), a first motor (9), a screw rod (10), a matched polished rod (11), a second positioning support plate (12), a linkage lifting power guide plate (13), a first folding push rod (14) and a second folding push rod (15), wherein one end of the first positioning support plate (8) is fixedly connected with the first motor (9) through a screw, the output end of the first motor (9) is fixedly connected with the screw rod (10), the matched polished rod (11) is welded on one side of the other end of the first positioning support plate (8), the other end of the matched polished rod (11) is welded with the second positioning support plate (12), the other end of the screw rod (10) is rotatably connected with the second positioning support plate (12), and the first folding push rod (14) is rotatably connected to two sides of the second positioning support plate (12), the outer side of the screw rod (10) and the outer side of the matched polished rod (11) are movably connected with a linkage lifting power guide-out plate (13), two sides of the linkage lifting power guide-out plate (13) are rotatably connected with second folding push rods (15), and the second folding push rods (15) are rotatably connected with the first folding push rods (14) in a crossed mode.

3. The large-size silicon single crystal slag extraction device according to claim 2, wherein: the quantitative derivation and adjustment structure (6) still includes and moves slide (16), guide polished rod (17), third fixed position board (18) and lift derivation board (19) to join in marriage, the top of the push rod (14) of first folding is rotated and is connected with and moves slide (16) to join in marriage, the top of the push rod (15) of second folding is rotated and is connected with third fixed position board (18), the top welding of third fixed position board (18) has lift derivation board (19), third fixed position board (18) have also been welded to the bottom of lift derivation board (19) the other end, two the welding has guide polished rod (17) between third fixed position board (18), move slide (16) and guide polished rod (17) sliding connection.

4. The large-size silicon single crystal slag extraction device according to claim 2, wherein: the linkage lifting power guide-out plate is characterized in that a matching through hole and a limiting through hole are formed in the linkage lifting power guide-out plate (13), the limiting through hole is located on one side of the matching through hole, the matching through hole is in threaded connection with the screw rod (10), and the limiting through hole is in sliding connection with the matching polished rod (11).

5. The large-size silicon single crystal slag extraction device according to claim 3, wherein: fine setting height locking location structure (7) are including guide limit slider (20), locking location jack (21), second motor (22), toggle gear axle (23), extend L and take support plate (24) and hydraulic piston cylinder (25), locking location jack (21) have been seted up to one side of guide limit slider (20), are close to locking location jack (21) department the top welding of guide limit slider (20) has extension L and takes support plate (24), it has hydraulic piston cylinder (25) through screw fixedly connected with to extend one side of L and take support plate (24), one side of guide limit slider (20) one end is through screw fixedly connected with second motor (22), the output fixedly connected with toggle gear axle (23) of second motor (22).

6. A large-size silicon single crystal slag extraction device according to claim 5, wherein: fine setting height locking location structure (7) still include locking inserted bar (26), location regulation rack (27) and quantitative locking through-hole (28), the output fixedly connected with locking inserted bar (26) of hydraulic piston cylinder (25), the inside sliding connection of guide limit slide (20) has location regulation rack (27), the one end and the gear shaft (23) meshing of location regulation rack (27) are connected, a plurality of quantitative locking through-holes (28) have been seted up to the inside of location regulation rack (27), locking inserted bar (26) both ends respectively with locking positioning jack (21) and quantitative locking through-hole (28) clearance fit.

7. The large-size silicon single crystal slag extraction device according to claim 1, wherein: quick cold type water-cooling screen structure (4) carry on pipe (29), lead temperature silica gel (30), quick cold heat dissipation circulation structure (31) and fan (32) including supplementary guide, supplementary guide carries on the one end of pipe (29) and passes through screw fixedly connected with fan (32), supplementary guide carries on the other end of pipe (29) fixedly connected with quick cold heat dissipation circulation structure (31) and lead temperature silica gel (30) in proper order.

8. The large-size silicon single crystal slag extraction device according to claim 7, wherein: the rapid cooling heat dissipation circulating structure (31) comprises a water body box (33), a semiconductor refrigeration plate (34), a temperature conducting base block (35), a first pumping and discharging pump (36), a guide-out flow dividing pipe (37), a temperature maintaining pipe (38), a gap overflowing heat dissipation plate (39) and a centralized return pipe (40), wherein the semiconductor refrigeration plate (34) is fixedly connected to the top end of the water body box (33), the temperature conducting base block (35) is fixedly connected to the inner side of the water body box (33), the bottom end of the semiconductor refrigeration plate (34) is connected with the temperature conducting base block (35) through a temperature conducting pad, the first pumping and discharging pump (36) is fixedly connected to one end of the water body box (33), the second pumping and discharging pump (41) is fixedly connected to one side of the water body box (33), the guide-out flow dividing pipe (37) is welded to the output end of the first pumping and discharging pump (36), and a plurality of temperature maintaining pipes (38) are welded to the bottom end of the output end of the guide-out flow dividing pipe (37), and a gap overflowing heat dissipation plate (39) is welded on the outer side of the temperature maintaining conduit (38), the output end of the temperature maintaining conduit (38) is welded with the input end of a centralized return pipe (40), and the output end of the centralized return pipe (40) is welded with a second pumping pump (41).

9. The large-size silicon single crystal slag extraction device according to claim 8, wherein: the material of the temperature maintaining conduit (38) and the material of the gap overflowing cooling plate (39) are both copper, and a plurality of overflowing cooling gap grooves are formed in the inner side of the gap overflowing cooling plate (39).

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