Large-wheelbase low-voltage power supply synchronous ingot mould car
By introducing a cooling support structure and an air-cooling mechanism on the large-wheelbase ingot mold car, the problems of thermal deformation and gap expansion caused by excessively high temperature on the lower surface of the ingot mold were solved, and the safe and reliable operation of the equipment was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANZHOU DAHONG ENGINEERING EQUIPMENT CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-12
AI Technical Summary
Excessive temperature on the lower surface of the ingot mold in a large wheelbase ingot mold car can cause thermal deformation or melting of the car body structure. The gaps between the ingot molds can widen due to thermal expansion and contraction, which can easily lead to leakage of molten silicon and pose a safety hazard.
The cooling support structure and air-cooling mechanism are adopted, including a high-temperature resistant support layer, a trapezoidal anti-cracking channel and a trapezoidal ventilation channel, forming a grid-like cooling channel. Combined with the air supply setting of the air-cooling mechanism, the temperature of the lower surface of the ingot mold is reduced, and the thermal stress is guided to release through the trapezoidal anti-cracking channel to prevent the crack from expanding.
It effectively reduces the temperature of the lower surface of the ingot mold, prevents thermal deformation and melting of the vehicle body, prevents silicon water leakage, and improves the service life and safety of the equipment.
Smart Images
Figure CN224222722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silicon production technology, specifically a large-wheelbase, low-voltage power supply synchronous ingot mold car. Background Technology
[0002] In industrial production, long-wheelbase, low-voltage powered synchronous ingot mold cars are key equipment for manufacturing large and complex parts, with applications particularly prominent in the metallurgical industry. Taking industrial silicon production as an example, the production process first involves automatically conveying precisely weighed silica and carbonaceous reducing agent to a submerged arc furnace. The furnace's high temperature (over 2000°C) reduces silica, generating industrial silicon liquid and carbon monoxide gas, which is then discharged through the material layer. Subsequently, a mixture of oxygen and air is introduced into the bottom of the molten silicon bath to remove impurities such as calcium and aluminum. The purified molten silicon is then transported by an electric cart to the casting room and precisely poured into the ingot molds of the ingot mold car. After the molten silicon cools and solidifies, the ingot is removed from the mold and then undergoes crushing, grading, weighing, and packaging before being stored, ultimately forming finished silicon blocks. Due to the massive production demands of the metallurgical industry, long-wheelbase ingot mold cars, with their powerful load-bearing and transport capabilities, have become core equipment ensuring efficient production operations.
[0003] Currently, large-wheelbase ingot mold cars typically have ingot mold assemblies assembled from multiple ingot molds mounted on the upper side of the car body. This setup presents the following problems: First, the temperature of the lower surface of the ingot mold is too high, causing thermal deformation or even melting of the car body structure, reducing the service life of the equipment. Second, when the combined ingot molds are directly supported by the car body, the gaps between the ingot molds gradually widen due to long-term thermal expansion and contraction caused by high temperatures. When the gap width is too large, molten silicon can easily leak from the gap into the car body, causing short circuits or mechanical failures, seriously threatening production safety. Utility Model Content
[0004] The purpose of this utility model is to provide a large-wheelbase, low-voltage power supply synchronous ingot mold trolley to solve two major problems existing in the current large-wheelbase ingot mold trolley assembly with multiple ingot molds installed on the upper side of the trolley body: First, the temperature of the lower surface of the ingot mold is too high, which can easily cause thermal deformation or even melting of the trolley body structure, shortening the equipment life; Second, the combined ingot molds are directly supported by the trolley body, and the gaps between the ingot molds expand at high temperatures, which may cause molten silicon to leak into the interior of the trolley body, causing safety hazards.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a large-wheelbase, low-voltage power supply synchronous ingot mold car, including an ingot mold car body and a control cabinet located on one side of the ingot mold car body, and further including a cooling support structure located on the upper side of the ingot mold car body, an ingot mold assembly placed on the upper side of the cooling support structure, and air-cooling mechanisms located on both sides of the control cabinet. The air outlet ports of the two air-cooling mechanisms extend into the interior of the cooling support structure. The cooling support structure includes a high-temperature resistant support layer, multiple trapezoidal anti-cracking channels, and three trapezoidal ventilation ducts. The multiple trapezoidal anti-cracking channels penetrate both sides of the high-temperature resistant support layer and are spaced apart along the length direction of the ingot mold car body. The three trapezoidal ventilation ducts penetrate both ends of the high-temperature resistant support layer and are spaced apart along the width direction of the ingot mold car body. The trapezoidal ventilation ducts and trapezoidal anti-cracking channels penetrate the upper and lower surfaces of the high-temperature resistant support layer and intersect perpendicularly to form a grid-like cooling channel.
[0006] Furthermore, the ingot module is composed of multiple assembled ingot modules that are sequentially spliced together, and the splicing gaps of adjacent assembled ingot modules are all aligned with the center of the trapezoidal anti-cracking channel.
[0007] Furthermore, the air-cooling mechanism includes a bracket on one side of the control cabinet, a fan on the bracket, a main air duct connected to the air outlet of the fan, a first air duct connected to one end of the main air duct, and a second air duct connected to the outer wall of the main air duct. The first air duct extends into the middle trapezoidal ventilation duct, and the second air duct extends into the trapezoidal ventilation duct located at the edge.
[0008] Furthermore, the ingot mold car body is provided with two low-pressure rails arranged at intervals below it; the ingot mold car body includes a casting support groove, a heat insulation plate embedded in the casting support groove, a frame provided on the lower side of the casting support groove, and two sets of synchronous drive mechanisms provided on the frame and symmetrically arranged along the length of the frame, wherein the synchronous drive mechanism slides in cooperation with the low-pressure rails.
[0009] Furthermore, the synchronous drive mechanism includes a set of active wheels and a set of driven wheels that are rotatably connected to the frame and spaced apart along the width of the frame, a servo motor mounted on the frame, and a reducer connected to the output end of the servo motor. The axle of the active wheel set is connected to the servo motor via the reducer and is connected to the axle of the active wheel set. The active wheel set is slidably connected to the corresponding low-pressure rail.
[0010] Furthermore, the insulation board is made of concrete.
[0011] Furthermore, the material of the high-temperature resistant support layer is a high-temperature resistant castable.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This invention constructs a heat dissipation and protection system through the coordinated operation of the ingot mold carriage body, a cooling support structure consisting of a high-temperature resistant support layer, trapezoidal anti-cracking channels, and trapezoidal ventilation ducts, and the ingot mold assembly and air-cooling mechanism. The interconnected trapezoidal anti-cracking channels and trapezoidal ventilation ducts within the cooling support structure form a grid-like cooling channel. Combined with the air supply settings of the air-cooling mechanism, this reduces the temperature of the lower surface of the ingot mold, preventing thermal deformation or melting of the carriage body due to high temperatures and extending the equipment's service life. Simultaneously, the alignment of the trapezoidal anti-cracking channels with the splicing gaps of the ingot mold assembly guides the reasonable release of thermal stress, preventing silicon molten metal leakage caused by the widening of gaps due to thermal expansion and contraction. By combining cooling and temperature control with stress relief, this invention solves the safety hazards caused by the high-temperature operation of traditional ingot mold carriages, improving the reliability and safety of the equipment. Attached Figure Description
[0014] Figure 1 This is a cross-sectional schematic diagram of the large-wheelbase low-voltage power supply synchronous ingot mold car of this utility model;
[0015] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;
[0016] Figure 3 This is a cross-sectional schematic diagram of the cooling support structure of this utility model;
[0017] Figure 4 This is a side view schematic diagram of the air-cooling mechanism of this utility model;
[0018] Figure 5 This is a bottom view of the large-wheelbase, low-voltage power supply synchronous ingot mold car of this utility model.
[0019] In the diagram: 1. Ingot mold car body; 2. Ingot mold assembly; 3. Low-pressure rail; 4. Synchronous drive mechanism; 5. Cooling support structure; 6. Control cabinet; 7. Air cooling mechanism; 8. Bracket; 9. Fan; 10. Main air duct; 11. First air duct; 12. Second air duct; 13. High-temperature resistant support layer; 14. Trapezoidal anti-cracking channel; 15. Trapezoidal ventilation duct; 16. Casting support groove; 17. Car frame; 18. Heat insulation board; 19. Servo motor; 20. Reducer; 21. Driven wheel set; 22. Driven wheel set; 23. Assembled ingot mold. Detailed Implementation
[0020] Please see Figure 1-5A large-wheelbase, low-voltage power supply synchronous ingot mold car includes an ingot mold car body 1 and a control cabinet 6 mounted on one side of the ingot mold car body 1 via two support beams. It also includes a cooling support structure 5 located on the upper side of the ingot mold car body 1, an ingot mold assembly 2 placed on the upper side of the cooling support structure 5, and air-cooling mechanisms 7 located on both sides of the control cabinet 6. The air outlets of the two air-cooling mechanisms 7 extend into the interior of the cooling support structure 5. The cooling support structure 5 includes a high-temperature resistant support layer 13, multiple trapezoidal anti-cracking channels 14, and three trapezoidal ventilation ducts 15. The multiple trapezoidal anti-cracking channels 14 penetrate both sides of the high-temperature resistant support layer 13 and are spaced apart along the length of the ingot mold car body 1. The three trapezoidal ventilation ducts 15 penetrate both ends of the high-temperature resistant support layer 13 and are spaced apart along the width of the ingot mold car body 1. The trapezoidal ventilation ducts 15 and the trapezoidal anti-cracking channels 14 both penetrate the upper and lower surfaces of the high-temperature resistant support layer 13 and intersect perpendicularly to form a grid-like cooling channel.
[0021] The ingot module 2 is composed of multiple assembled ingot modules 23, which are sequentially spliced together. The splicing gaps of adjacent assembled ingot modules 23 are all aligned with the center of the trapezoidal anti-cracking channel 14. The precise alignment of the splicing gaps with the center of the trapezoidal anti-cracking channel 14 allows the stress generated by the thermal expansion and contraction of the assembled ingot modules 23 under high temperatures to be directly released through the through trapezoidal anti-cracking channel 14, preventing the gaps from widening due to stress accumulation.
[0022] The air-cooling mechanism 7 includes a bracket 8 installed on one side of the control cabinet 6, a fan 9 installed on the bracket 8, a main air duct 10 connected to the air outlet of the fan 9, a first air duct 11 connected to one end of the main air duct 10, and a second air duct 12 connected to the outer wall of the main air duct 10. The first air duct 11 extends into the interior of the middle trapezoidal ventilation duct 15, and the second air duct 12 extends into the interior of the trapezoidal ventilation duct 15 located at the edge.
[0023] Two spaced low-voltage rails 3 are installed on the ground below the mold car body 1, providing stable running guidance and power transmission path for the vehicle. The mold car body 1 includes a casting support groove 16, a heat insulation plate 18 embedded inside the casting support groove 16, a frame 17 located on the lower side of the casting support groove 16, and two sets of synchronous drive mechanisms 4 symmetrically arranged on the frame 17 along the length of the frame 17. The synchronous drive mechanisms 4 slide in cooperation with the low-voltage rails 3.
[0024] The track is powered by low-voltage track 3, and the die car body 1 is powered by 36V single-phase (three-phase) AC via the track sliding contact line. The ground step-down transformer control cabinet 6 steps down the single-phase (three-phase) AC 380V to single-phase (three-phase) 36V, feeds it to the die car body 1 via the track sliding contact line, and then steps it up to single-phase (three-phase) AC 380V via the on-board step-up transformer. Power is supplied to the single-phase servo motor 19 of the die car body 1. The use of a cable-free low-voltage track 3 power supply method eliminates the need for cable connections, avoiding the risks of cable damage and leakage caused by high temperature and mechanical impact in traditional cable power supply scenarios. It can withstand heat radiation and heavy object impacts; the track sliding contact line layout is simple, with no exposed cable interference, and does not hinder cross-transport operations within the factory area.
[0025] The synchronous drive mechanism 4 includes a drive wheel set 21 and a driven wheel set 22 rotatably connected to the frame 17 and spaced apart along the width of the frame 17; a servo motor 19 mounted on the frame 17 via a mounting bracket; and a reducer 20 connected to the output of the servo motor 19. The axle of the drive wheel set 21 is connected to the servo motor 19 via the reducer 20. The drive wheel set 21 is slidably connected to the corresponding low-pressure rail 3. The servo motor 19 controls the speed and torque of the drive wheel set 21 through a program. In conjunction with the reducer 20, it can achieve synchronous drive of multiple wheels, ensuring that vehicles with large wheelbases (such as 6-meter gauge) can travel smoothly under heavy loads (over 50t) and avoiding the risk of rollover due to wheel speed differences. The driven wheel set 22, as a non-powered guide wheel, is spaced apart from the drive wheel set 21 along the width of the frame 17, improving the vehicle's trajectory following performance when passing through curves.
[0026] The heat insulation board 18 is made of concrete, which can block the high temperature transmitted from the ingot module 2 to the casting support groove 16, so that the surface temperature of the frame 17 is controlled within 60°C, and the vehicle body structure is prevented from thermal deformation or mechanical performance degradation due to overheating. At the same time, the high density of concrete gives it good structural load-bearing capacity, and it forms a rigid support layer after being combined with the casting support groove 16.
[0027] The high-temperature resistant support layer 13 is made of high-temperature resistant castable material, which can withstand temperatures above 1200℃, resist the heat radiation generated by the ingot module 2, and prevent the thermal deformation of the cooling support structure 5.
[0028] Working process and principle: When the large-wheelbase low-voltage power supply synchronous ingot mold car is working, the servo motor 19 drives the active wheel set 21 to run on the low-voltage track 3 through the reducer 20, and the driven wheel set 22 assists in guiding, so as to realize the synchronous movement of the ingot mold car body 1 along the two low-voltage tracks 3. The ingot mold group 2 is composed of multiple assembled ingot molds 23. Its lower surface is supported by the cooling support structure 5. The high-temperature resistant support layer 13 is made of high-temperature resistant castable to resist high temperature. The trapezoidal anti-cracking channel 14 and trapezoidal ventilation channel 15 are vertically intersected to form a grid-like cooling channel. After the air-cooling mechanism 7 on both sides of the control cabinet 6 is started, the cold air generated by the fan 9 is diverted through the main air duct 10 to the first air duct 11 and the second air duct 12, and sent into the trapezoidal ventilation channel 15 in the middle and the edge respectively. In the grid-like channel, a horizontal and vertical intersecting airflow path is formed to force cooling of the lower surface of the ingot mold group 2, reduce the temperature and prevent thermal deformation of the ingot mold car body 1. Meanwhile, the joints of adjacent assembled ingot molds 23 are aligned with the center of the trapezoidal anti-cracking channel 14. Thermal stress generated at high temperatures can be released through the through-hole trapezoidal anti-cracking channel 14, preventing silica leakage due to expansion of the joints caused by thermal expansion and contraction. The concrete insulation board 18 within the cast-in-place support groove 16 further blocks heat conduction to the frame 17, ensuring vehicle structural safety. This large-wheelbase, low-voltage power-supply synchronous ingot mold vehicle achieves ingot mold transportation through the synergistic effects of low-voltage rail power supply 3, synchronous drive, grid channel cooling, and thermal stress release.
[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A long-wheelbase, low-voltage power supply synchronous ingot mold car, comprising an ingot mold car body (1) and a control cabinet (6) disposed on one side of the ingot mold car body (1), characterized in that, It also includes a cooling support structure (5) on the upper side of the ingot mold car body (1), an ingot mold group (2) placed on the upper side of the cooling support structure (5), and air-cooling mechanisms (7) respectively located on both sides of the control cabinet (6). The air outlet ports of the two air-cooling mechanisms (7) extend into the interior of the cooling support structure (5). The cooling support structure (5) includes a high-temperature resistant support layer (13), multiple trapezoidal anti-cracking channels (14) and three trapezoidal ventilation channels (15). The multiple trapezoidal anti-cracking channels (14) penetrate both sides of the high-temperature resistant support layer (13) and are spaced apart along the length direction of the ingot mold car body (1). The three trapezoidal ventilation channels (15) penetrate both ends of the high-temperature resistant support layer (13) and are spaced apart along the width direction of the ingot mold car body (1). The trapezoidal ventilation channels (15) and the trapezoidal anti-cracking channels (14) penetrate the upper and lower surfaces of the high-temperature resistant support layer (13) and intersect vertically to form a grid-like cooling channel.
2. The ingot mold car according to claim 1, characterized in that, The ingot module (2) is composed of multiple assembled ingot modules (23) spliced together in sequence, and the splicing gaps of adjacent assembled ingot modules (23) are all aligned with the center of the trapezoidal anti-cracking channel (14).
3. The ingot mold car according to claim 1, characterized in that, The air-cooling mechanism (7) includes a bracket (8) on one side of the control cabinet (6), a fan (9) on the bracket (8), a main air duct (10) connected to the air outlet of the fan (9), a first air duct (11) connected to one end of the main air duct (10), and a second air duct (12) connected to the outer wall of the main air duct (10). The first air duct (11) extends into the middle trapezoidal ventilation duct (15), and the second air duct (12) extends into the trapezoidal ventilation duct (15) located at the edge.
4. The ingot mold car according to claim 1, characterized in that, The ingot mold car body (1) is provided with two low-pressure rails (3) arranged at intervals below it; the ingot mold car body (1) includes a casting support groove (16), a heat insulation plate (18) embedded in the casting support groove (16), a frame (17) provided on the lower side of the casting support groove (16), and two sets of synchronous drive mechanisms (4) provided on the frame (17) and symmetrically arranged along the length of the frame (17). The synchronous drive mechanism (4) slides with the low-pressure rails (3).
5. The ingot mold car according to claim 4, characterized in that, The synchronous drive mechanism (4) includes an active wheel set (21) and a driven wheel set (22) rotatably connected to the frame (17) and spaced apart along the width direction of the frame (17), a servo motor (19) mounted on the frame (17), and a reducer (20) connected to the output end of the servo motor (19). The axle of the active wheel set (21) is connected to the servo motor (19) through the reducer (20) and is connected to the axle of the active wheel set (21). The active wheel set (21) is slidably connected to the corresponding low-pressure rail (3).
6. The ingot mold car according to claim 4, characterized in that, The insulation board (18) is made of concrete.
7. The ingot mold car according to claim 1, characterized in that, The high-temperature resistant support layer (13) is made of high-temperature resistant castable.