Forced cooling device for thick and large casting

Abstract

The utility model discloses a forced cooling device for thick and large castings, which comprises a chain conveyor and a cooling box, the side wall of the chain conveyor is sleeved with a forced cooling channel, a hollow-square-shaped cavity is arranged in the forced cooling channel, a cooling pipe is arranged in the hollow-square-shaped cavity, the other side of the cooling box is provided with a control panel, and the control panel is connected with the cooling box. Multiple sets of cold air openings are formed in the inner wall of the concentric-square-shaped cavity, a first moving plate and a second moving plate are arranged in the forced cooling channel, water curtain fans are installed on the front end face and the rear end face of the forced cooling channel in a penetrating mode, and two sets of negative pressure fans are fixedly arranged on the top face in the forced cooling channel in a penetrating mode; and a water passing tank, a water cooling tower and a circulating water tank are mounted in the cooling tank. The forced cooling device for the thick and large castings has the advantages that the first moving plate and the second moving plate are adopted, the position where cooling air makes contact with the thick and large castings can be adjusted through the first moving plate and the second moving plate, the cooling efficiency of the thick and large castings is improved, and the cooling efficiency of the forced cooling device for the thick and large castings is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting production, in particular to a strong cooling device for thick and large castings. Background Art

[0002] Castings are metal shaped objects obtained by various casting methods, that is, the smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods, and then cooled and polished to obtain objects with a certain shape, size and performance. In the actual production of castings, a cooling process is required, which is now mostly completed using strong cooling devices. In actual use, it has the advantages of simple operation, stable structure and good use effect.

[0003] The prior art discloses a forced cooling device for aluminum alloy castings with publication number: CN212822621U, which includes a conveying line, a forced cooling channel, a water curtain fan, a negative pressure fan, a cooling device, a cold air outlet, an exhaust outlet, a cooling pipe, a water inlet pipe, a water return pipe, an aluminum alloy casting, an inspection door, a water tank, a cooling water tower, a circulating water tank, a circulating water pump, a hot water tank, a heat transfer pipe and a heat transfer fin. A water curtain fan is used to first reduce the temperature of the air, and then the air is sent into the forced cooling channel, blown through the aluminum alloy casting, and then discharged through the negative pressure fan, thereby reducing the temperature of the aluminum alloy casting, significantly improving the cooling efficiency, and reducing energy consumption. At the same time, a cooling pipe is arranged in the forced cooling channel, and cooling water is introduced to quickly reduce the temperature of the forced cooling channel.

[0004] In the above utility model, the water curtain fan blows the cooled air toward the casting through the cold air port. The casting is stably conveyed by the conveyor line, and the position at which the casting contacts the cooled air through the cold air port cannot be adjusted, thereby affecting the cooling efficiency of the thick and large casting, thereby reducing the cooling efficiency of the thick and large casting of this utility model.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a strong cooling device for thick and large castings, which has the advantage of being able to adjust the position where the cooling air contacts the thick and large castings, thereby accelerating the cooling efficiency of the thick and large castings, thereby solving the problems in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] In order to achieve the above advantages of being able to adjust the position where the cooling air contacts the thick and large castings and accelerate the cooling efficiency of the thick and large castings, the specific technical solutions adopted by the utility model are as follows:

[0010] A strong cooling device for thick and large castings comprises a chain conveyor and a cooling box, the side wall of the chain conveyor is sleeved with a strong cooling channel, and a roundabout cavity is arranged inside the strong cooling channel, and a cooling pipe is installed inside the roundabout cavity, a control panel is installed on the other side of the cooling box, a plurality of cold air outlets are opened on the inner wall of the roundabout cavity, a first movable plate and a second movable plate are arranged inside the strong cooling channel, water curtain fans are installed through the front and rear end faces of the strong cooling channel, two groups of negative pressure fans are fixedly penetrated through the internal top surface of the strong cooling channel, a water tank, a cooling water tower and a circulating water tank are installed inside the cooling box, the water tank, the cooling water tower and the circulating water tank are connected by pipelines, a circulating water pump is installed on the rear end face of the circulating water tank through a pipeline, and a four-way pipe is installed on the output end of the circulating water pump, the two ends of the four-way pipe pass through the upper parts of the two groups of water curtain fans, the remaining end of the four-way pipe is fixedly connected to one end of the cooling pipe, and the cooling The other end of the cooling tube is provided with a three-way pipe, and one end of the three-way pipe passes through one side of the cooling box and the water transfer box, and the remaining end of the three-way pipe is inserted into the interior of the circular cavity, and a heat exchange box is installed on the upper part of the water transfer box, and three groups of first sealed bearings are passed through the water transfer box and the heat exchange box, and the interiors of the three groups of first sealed bearings are all passed through heat conducting columns, the end face of the heat exchange box is passed through a water inlet pipe, and the rear end face of the heat exchange box is passed through a water outlet pipe, and two groups of connecting rods are installed on the away surfaces of the first movable plate and the second movable plate, and one end of the four groups of connecting rods respectively slides through the front and rear end faces of the interior of the strong cooling channel, and one end of the two groups of connecting rods on the same side is provided with mounting plates, and the facing surfaces of the two groups of mounting plates are provided with electric telescopic rods, and one end of the two groups of electric telescopic rods are respectively fixedly connected to the front and rear end faces of the strong cooling channel, and the end face of the first movable plate is provided with multiple groups of first intercepting plates, and the rear end face of the second movable plate is provided with multiple groups of second intercepting plates.

[0011] Furthermore, multiple groups of the first intercepting plates and multiple groups of the second intercepting plates are staggered with each other.

[0012] Furthermore, three groups of second sealed bearings pass through the upper part of the heat exchange box, and the interiors of the three groups of second sealed bearings are all penetrated by heat insulation columns, and the side walls of the three groups of heat-conducting columns are installed with multiple groups of first heat-conducting plates and multiple groups of second heat-conducting plates. The upper ends of the three groups of heat-conducting columns are respectively fixedly connected to the lower ends of the three groups of heat-insulating columns, and the side walls of the two front groups of heat-insulating columns are both sleeved with first pulleys, and the side walls of the two groups of the first pulleys are sleeved with first transmission belts, and the side walls of the two rear groups of heat-insulating columns are both sleeved with second pulleys, and the side walls of the two groups of the second pulleys are sleeved with second transmission belts, a right-angle plate is installed on the upper part of the heat exchange box, and a drive motor is installed on the upper part of the right-angle plate, and the output end of the drive motor is fixedly connected to the upper end of the middle group of heat-insulating columns, and the drive motor is electrically connected to the control panel through wires.

[0013] Furthermore, the two groups of the first pulleys are located on the same horizontal plane.

[0014] Furthermore, the two groups of the second pulleys are located on the same horizontal plane.

[0015] Furthermore, the control panel is electrically connected to the chain conveyor, the two groups of water curtain fans, the circulating water pump, the two groups of negative pressure fans and the two groups of electric telescopic rods through electric wires.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a strong cooling device for thick and large castings, which has the following beneficial effects:

[0018] (1) The utility model adopts a first movable plate and a second movable plate. When the strong cooling device for thick and large castings is actually used, the operator manually places the thick and large castings on the conveying surface of the chain conveyor, and uses the control panel to operate the chain conveyor, two sets of water curtain fans, a circulating water pump, two sets of negative pressure fans and two sets of electric telescopic rods. The chain conveyor can drive the thick and large castings to move, the circulating water pump can draw the cooling water in the circulating water tank into the two sets of water curtain fans and the cooling pipes through the four-way pipe, the two sets of water curtain fans can blow air to the thick and large castings through the cooling pipes, the two sets of negative pressure fans can draw out the high-temperature air in the strong cooling channel, and the high-temperature water in the round cavity and the cooling pipes can be blown out through the four-way pipe. Entering the interior of the water tank through the three-way pipe, the two sets of electric telescopic rods are extended or shortened, and the use positions of multiple sets of first interception plates and multiple sets of second interception plates can be adjusted by the first movable plate and the second movable plate. During the movement of the thick and large castings, it will hit a set of first interception plates. At this time, the thick and large castings will rotate on the conveying surface of the chain conveyor. At this time, the position where the cold air contacts the thick and large castings is changed, and the thick and large castings hit the remaining multiple sets of first interception plates and the remaining multiple sets of second interception plates. It can be seen from the same operation that the position where the cooling air contacts the thick and large castings can be adjusted by setting the first movable plate and the second movable plate, thereby accelerating the cooling efficiency of the thick and large castings and improving the cooling efficiency of the strong cooling device for the thick and large castings.

[0019] (2) The utility model adopts a heat-conducting column. According to the above operation, high-temperature water will enter the interior of the water tank through the three-way pipe, and the high-temperature water inside the water tank will enter the interior of the circulating water tank through the cooling water tower. The control panel is used to make the drive motor work. The output end of the drive motor will drive the middle group of heat-insulating columns to rotate by using three groups of first sealed bearings and three groups of second sealed bearings. The middle group of heat-insulating columns will drive the rear group of first pulleys and the front group of second pulleys to rotate. The rotating rear group of first pulleys and the front group of second pulleys drive the front group of first pulleys and the rear group of second pulleys to rotate through the first transmission belt and the second transmission belt. The rotating front A set of first pulleys and a set of second pulleys at the rear will drive the remaining two sets of heat insulation columns to rotate. The rotating three sets of heat insulation columns can drive multiple sets of first heat conductive plates and multiple sets of second heat conductive plates to rotate through the three sets of heat conductive columns. The rotating multiple sets of first heat conductive plates and multiple sets of second heat conductive plates can stir the liquid water inside the water tank and the heat exchange box. The heat of the hot water inside the water tank is transferred to the liquid water inside the heat exchange box through the three sets of heat conductive columns, multiple sets of first heat conductive plates and multiple sets of second heat conductive plates. The set heat conductive columns can stir the hot water inside the water tank, push away the liquid water near the heat conductive structure, neutralize the hot water inside the water tank, ensure the heat conduction efficiency, and improve the practicality of the strong cooling device for thick and large castings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of a strong cooling device for thick and large castings proposed by the utility model;

[0022] Figure 2 It is a cross-sectional schematic diagram of the water tank proposed by the utility model;

[0023] Figure 3 It is a cross-sectional schematic diagram of the strong cooling channel proposed by the utility model;

[0024] Figure 4 It is a three-dimensional diagram of the first movable plate and the second movable plate proposed by the utility model;

[0025] Figure 5 The utility model proposes Figure 1 A magnified view of middle;

[0026] Figure 6 The utility model proposes Figure 2 Enlarged view of B.

[0027] In the figure:

[0028] 1. Chain conveyor; 2. Cooling box; 3. Strong cooling channel; 4. Round cavity; 5. Cooling pipe; 6. Cold air outlet; 7. First moving plate; 8. Second moving plate; 9. Water curtain fan; 10. Three-way pipe; 11. Water box; 12. Cold water tower; 13. Circulating water tank; 14. Circulating water pump; 15. Four-way pipe; 16. Negative pressure fan; 17. Heat exchange box; 18. Water inlet pipe; 19. Water outlet pipe; 20. First sealed bearing; 21. Heat conducting column; 22. Connecting rod; 23. Mounting plate; 24. Electric telescopic rod; 25. First intercepting plate; 26. Second intercepting plate; 27. Second sealed bearing; 28. Heat insulating column; 29. ​​First heat conducting plate; 30. Second heat conducting plate; 31. First pulley; 32. First transmission belt; 33. Second pulley; 34. Second transmission belt; 35. Right angle plate; 36. Driving motor. DETAILED DESCRIPTION

[0029] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0030] According to an embodiment of the utility model, a strong cooling device for thick and large castings is provided.

[0031] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-6As shown, according to an embodiment of the utility model, a strong cooling device for thick and large castings includes a chain conveyor 1 and a cooling box 2, the side wall of the chain conveyor 1 is sleeved with a strong cooling channel 3, and a round cavity 4 is arranged inside the strong cooling channel 3, and a cooling pipe 5 is installed inside the round cavity 4, a control panel is installed on the other side of the cooling box 2, a plurality of groups of cold air ports 6 are opened on the inner wall of the round cavity 4, a first movable plate 7 and a second movable plate 8 are arranged inside the strong cooling channel 3, the front and rear end surfaces of the strong cooling channel 3 are penetrated with a water curtain fan 9, and the inner top surface of the strong cooling channel 3 is fixedly penetrated with a cooling fan 9. Two groups of negative pressure fans 16, a water tank 11, a cooling tower 12 and a circulating water tank 13 are installed inside the cooling box 2, and the water tank 11, the cooling tower 12 and the circulating water tank 13 are connected by pipelines. A circulating water pump 14 is installed on the rear end surface of the circulating water tank 13 through a pipeline, and a four-way pipe 15 is installed at the output end of the circulating water pump 14. Both ends of the four-way pipe 15 pass through the upper part of the two groups of water curtain fans 9, and the remaining end of the four-way pipe 15 is fixedly connected to one end of the cooling pipe 5. The other end of the cooling pipe 5 is installed with a three-way pipe 10, and one end of the three-way pipe 10 passes through the cooling box 2 and one side of the water tank 11, the remaining end of the three-way pipe 10 is inserted into the inner part of the round-shaped cavity 4, a heat exchange box 17 is installed on the upper part of the water tank 11, three groups of first sealed bearings 20 are penetrated between the water tank 11 and the heat exchange box 17, and the interiors of the three groups of first sealed bearings 20 are penetrated by heat-conducting columns 21, the end face of the heat exchange box 17 is penetrated by a water inlet pipe 18, and the rear end face of the heat exchange box 17 is penetrated by a water outlet pipe 19, and the far-away surfaces of the first movable plate 7 and the second movable plate 8 are both installed with two groups of connecting rods 22, and one end of the four groups of connecting rods 22 respectively slides through the front and rear ends of the interior of the strong cooling channel 3 One end of the two groups of connecting rods 22 on the same side is equipped with a mounting plate 23, and the facing surfaces of the two groups of mounting plates 23 are equipped with electric telescopic rods 24. One ends of the two groups of electric telescopic rods 24 are respectively fixedly connected to the front and rear end surfaces of the strong cooling channel 3, and a plurality of first intercepting plates 25 are installed on the end surface of the first movable plate 7, and a plurality of second intercepting plates 26 are installed on the rear end surface of the second movable plate 8. By setting the first movable plate 7 and the second movable plate 8, the position where the cooling air contacts the thick and large castings can be adjusted, the cooling efficiency of the thick and large castings can be accelerated, and the cooling efficiency of the strong cooling device for thick and large castings is improved.

[0032] In one embodiment, the multiple groups of first interception plates 25 and the multiple groups of second interception plates 26 are offset from each other to ensure that the multiple groups of first interception plates 25 and the multiple groups of second interception plates 26 can intermittently impact the thick and large castings.

[0033] In one embodiment, three groups of second sealed bearings 27 are passed through the upper part of the heat exchange box 17, and the interiors of the three groups of second sealed bearings 27 are all passed through by heat insulation columns 28. The side walls of the three groups of heat-conducting columns 21 are installed with multiple groups of first heat-conducting plates 29 and multiple groups of second heat-conducting plates 30. The upper ends of the three groups of heat-conducting columns 21 are fixedly connected to the lower ends of the three groups of heat-conducting columns 28, respectively. The side walls of the two front groups of heat-insulating columns 28 are sleeved with first pulleys 31, and the side walls of the two groups of first pulleys 31 are sleeved with first transmission belts 32. The side walls of the two rear groups of heat-insulating columns 28 are sleeved with second pulleys 33, and the two A second transmission belt 34 is sleeved on the side wall of the second pulley 33, a right-angle plate 35 is installed on the upper part of the heat exchange box 17, and a drive motor 36 is installed on the upper part of the right-angle plate 35, and the output end of the drive motor 36 is fixedly connected to the upper end of the middle group of insulation columns 28, and the drive motor 36 is electrically connected to the control panel through wires. Through the set heat-conducting columns 21, the hot water inside the water tank 11 can be stirred, the liquid water near the heat-conducting structure can be pushed away, and the hot water inside the water tank 11 can be neutralized, so as to ensure the heat conduction efficiency and improve the practicality of the strong cooling device for thick and large castings.

[0034] In one embodiment, the two sets of first pulleys 31 are located on the same horizontal plane to avoid the first transmission belt 32 being unable to be sleeved and used due to the misalignment of the two sets of first pulleys 31 .

[0035] In one embodiment, the two sets of second pulleys 33 are located on the same horizontal plane to avoid the second transmission belt 34 being unable to be sleeved and used due to the misalignment of the two sets of second pulleys 33 .

[0036] In one embodiment, the control panel is electrically connected to the chain conveyor 1, two sets of water curtain fans 9, the circulating water pump 14, two sets of negative pressure fans 16 and two sets of electric telescopic rods 24 through electric wires. The control panel can be implemented through simple programming by technicians in this field. It belongs to the common knowledge in this field. It is only used without modification, so the control method and circuit connection will not be described in detail.

[0037] Working principle:

[0038] When the strong cooling device for thick and large castings is actually used, the operator manually places the thick and large castings on the conveying surface of the chain conveyor 1, and uses the control panel to operate the chain conveyor 1, two sets of water curtain fans 9, the circulating water pump 14, two sets of negative pressure fans 16 and two sets of electric telescopic rods 24. The chain conveyor 1 can drive the thick and large castings to move, the circulating water pump 14 can draw the cooling water inside the circulating water tank 13 into the two sets of water curtain fans 9 and the cooling pipe 5 through the four-way pipe 15, the two sets of water curtain fans 9 can blow air to the thick and large castings through the cooling pipe 5, the two sets of negative pressure fans 16 can draw out the high-temperature air inside the strong cooling channel 3, and the high-temperature water inside the round cavity 4 and the cooling pipe 5 can enter the water tank 11 through the three-way pipe 10. The two sets of electric telescopic rods 24 can be used to operate the strong cooling device. The rod 24 is extended or shortened, and the use positions of the multiple groups of first interception plates 25 and the multiple groups of second interception plates 26 can be adjusted by the first movable plate 7 and the second movable plate 8. During the movement of the thick and large casting, it will hit a group of first interception plates 25. At this time, the thick and large casting will rotate on the conveying surface of the chain conveyor 1. At this time, the position where the cold air contacts the thick and large casting is changed, and the thick and large casting hits the remaining multiple groups of first interception plates 25 and the remaining multiple groups of second interception plates 26. It can be seen from the same operation that the position where the cooling air contacts the thick and large casting can be adjusted by setting the first movable plate 7 and the second movable plate 8, so as to accelerate the cooling efficiency of the thick and large casting and improve the cooling efficiency of the strong cooling device for the thick and large casting. At the same time, according to the above operation, it can be seen that high-temperature water will enter through the three-way pipe 10 The high-temperature water in the water tank 11 will enter the circulating water tank 13 through the cooling tower 12. The control panel is used to make the driving motor 36 work. The output end of the driving motor 36 will drive the middle group of heat-insulating columns 28 to rotate. The middle group of heat-insulating columns 28 will drive the rear group of first pulleys 31 and the front group of second pulleys 33 to rotate. The rotating rear group of first pulleys 31 and the front group of second pulleys 33 drive the front group of first pulleys 31 and the rear group of second pulleys 33 to rotate through the first transmission belt 32 and the second transmission belt 34. The rotating front group of first pulleys 31 and the rear group of second pulleys 33 33 will drive the other two groups of heat-insulating columns 28 to rotate. The rotating three groups of heat-insulating columns 28 can drive multiple groups of first heat-conducting plates 29 and multiple groups of second heat-conducting plates 30 to rotate through the three groups of heat-conducting columns 21. The rotating multiple groups of first heat-conducting plates 29 and multiple groups of second heat-conducting plates 30 can stir the liquid water inside the water tank 11 and the heat exchange box 17. The heat of the hot water inside the water tank 11 is transferred to the liquid water inside the heat exchange box 17 through the three groups of heat-conducting columns 21, multiple groups of first heat-conducting plates 29 and multiple groups of second heat-conducting plates 30. The set heat-conducting columns 21 can stir the hot water inside the water tank 11, push away the liquid water near the heat-conducting structure, and neutralize the hot water inside the water tank 11, thereby ensuring the heat conduction efficiency and improving the practicality of the strong cooling device for thick and large castings.

[0039] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A strong cooling device for thick and large castings, characterized in that: The invention comprises a chain conveyor (1) and a cooling box (2), wherein the side wall of the chain conveyor (1) is sleeved with a strong cooling channel (3), and a round-shaped cavity (4) is arranged inside the strong cooling channel (3), and a cooling pipe (5) is installed inside the round-shaped cavity (4), a control panel is installed on the other side of the cooling box (2), and a plurality of cold air ports (6) are provided on the inner wall of the round-shaped cavity (4), and a first movable plate (7) and a second movable plate (8) are arranged inside the strong cooling channel (3), and water curtain fans (9) are installed through the front and rear end surfaces of the strong cooling channel (3), and two groups of cold air ports (6) are fixedly installed on the inner top surface of the strong cooling channel (3). A negative pressure fan (16), a water tank (11), a cooling tower (12) and a circulating water tank (13) are installed inside the cooling box (2), the water tank (11), the cooling tower (12) and the circulating water tank (13) are connected by a pipeline, a circulating water pump (14) is installed on the rear end surface of the circulating water tank (13) through a pipeline, and a four-way pipe (15) is installed on the output end of the circulating water pump (14), both ends of the four-way pipe (15) pass through the upper part of the two groups of water curtain fans (9), the remaining end of the four-way pipe (15) is fixedly connected to one end of the cooling pipe (5), and the other end of the cooling pipe (5) is installed A three-way pipe (10) is provided, and one end of the three-way pipe (10) passes through one side of the cooling box (2) and the water box (11), and the other end of the three-way pipe (10) is inserted into the inside of the round-shaped cavity (4). A heat exchange box (17) is installed on the upper part of the water box (11). Three groups of first sealed bearings (20) are passed through between the water box (11) and the heat exchange box (17). The insides of the three groups of first sealed bearings (20) are all passed through by heat conducting columns (21). The end surface of the heat exchange box (17) is passed through by a water inlet pipe (18), and the rear end surface of the heat exchange box (17) is passed through by a water outlet pipe (19). The first movable plate (7) and Two groups of connecting rods (22) are installed on the away surface of the second movable plate (8), and one end of the four groups of connecting rods (22) respectively slides through the internal front and rear end surfaces of the strong cooling channel (3), and one end of the two groups of connecting rods (22) on the same side is installed with a mounting plate (23), and the facing surfaces of the two groups of mounting plates (23) are installed with electric telescopic rods (24), and one end of the two groups of electric telescopic rods (24) are respectively fixedly connected to the front and rear end surfaces of the strong cooling channel (3), and the end surface of the first movable plate (7) is installed with a plurality of first intercepting plates (25), and the rear end surface of the second movable plate (8) is installed with a plurality of second intercepting plates (26).

2. A strong cooling device for thick and large castings according to claim 1, characterized in that: A plurality of groups of the first intercepting plates (25) and a plurality of groups of the second intercepting plates (26) are offset from each other.

3. A strong cooling device for thick and large castings according to claim 1, characterized in that: The upper part of the heat exchange box (17) is penetrated by three groups of second sealed bearings (27), and the interiors of the three groups of second sealed bearings (27) are penetrated by heat insulating columns (28). The side walls of the three groups of heat conductive columns (21) are installed with multiple groups of first heat conductive plates (29) and multiple groups of second heat conductive plates (30). The upper ends of the three groups of heat conductive columns (21) are fixedly connected to the lower ends of the three groups of heat insulating columns (28), respectively. The side walls of the two front groups of heat insulating columns (28) are sleeved with first pulleys (31), and the side walls of the two groups of the first pulleys (31) are connected to the first pulleys (31). The side walls of the two groups of heat-insulating columns (28) at the rear are sleeved with a first transmission belt (32); the side walls of the two groups of the second belt pulleys (33) at the rear are sleeved with a second transmission belt (34); a right-angle plate (35) is installed on the upper part of the heat exchange box (17); and a driving motor (36) is installed on the upper part of the right-angle plate (35); and the output end of the driving motor (36) is fixedly connected to the upper end of the middle group of the heat-insulating columns (28); and the driving motor (36) is electrically connected to the control panel through electric wires.

4. A strong cooling device for thick and large castings according to claim 3, characterized in that: The two groups of the first pulleys (31) are located on the same horizontal plane.

5. A strong cooling device for thick and large castings according to claim 3, characterized in that: The two groups of the second pulleys (33) are located on the same horizontal plane.

6. A strong cooling device for thick and large castings according to claim 1, characterized in that: The control panel is electrically connected to the chain conveyor (1), the two groups of water curtain fans (9), the circulating water pump (14), the two groups of negative pressure fans (16) and the two groups of electric telescopic rods (24) through electric wires.

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