Casting blank cooling equipment

Abstract

The utility model relates to the technical field of casting blank cooling, and discloses casting blank cooling equipment. The casting blank cooling equipment comprises a supporting frame, a heat preservation pool is fixedly installed in the supporting frame, a connecting pipe is fixedly installed on the left side of the heat preservation pool, a liquid pump is fixedly installed on the left side of the connecting pipe, a flow guide pipe is fixedly installed below the liquid pump, and an atomization spray head is fixedly installed above the flow guide pipe; when the water inlet pipe and the valve on the valve pipe are closed, the negative pressure pool is in a sealed state, gas in the negative pressure pool is pumped out through the vacuum pump, so that the interior of the negative pressure pool is in a negative pressure state, and the pressure intensity in the negative pressure pool is controlled through the vacuum pump to change the boiling point of water in the negative pressure pool, so that the boiling point of the water is about 30 DEG C; after the temperature of the water reaches 30 DEG C through the heating coil, the water cannot continuously absorb heat, and the temperature of the cooling water is controlled in this way, so that the situation that the temperature of the cooling water is too high or too low to influence cooling of the casting blank is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of casting blank cooling, in particular to a casting blank cooling device. Background Art

[0002] In casting production, castings always require cold working before they can be properly used. Simply put, cooling a casting involves lowering its temperature from a high temperature to a point where it reaches equilibrium with the surrounding environment. AH70DB steel has a low controlled final cooling temperature, resulting in a rapid cooling rate on the steel surface. This can lead to uneven strength across the plate and deviation from the central axis. Research has shown that adopting a controlled cooling process followed by a normalizing heat treatment, followed by a period of holding and then air cooling, can improve ferrite and structural defects, thereby enhancing the steel's impact toughness.

[0003] The existing referenceable Chinese utility model patent has a publication number of CN211005513U, which discloses a casting cooling device for steel production, including a cooling box, a conveyor belt, a spraying device, an infrared temperature sensor and a blowing device, and an inlet and an outlet are opened on the left and right sides of the cooling box, and its characteristics are: the conveyor belt passes through the inlet and outlet and is installed above the middle part of the cooling box; more than two groups of spraying devices are installed at the top, lower end or upper part of the front and rear sides of the cooling box, and the spraying device includes a nozzle adjustable in multiple directions; a temperature sensor is installed at the upper end or top of the side of the cooling box; the blowing device is installed inside the cooling box near the outlet, and on both sides of the conveyor belt outside the outlet; a sealed water collection chamber is provided at the bottom of the conveyor belt outside the cooling box outlet, and water collection troughs are provided on both sides of the water collection chamber, and a leakage hole is provided at the bottom of the conveyor belt outside the cooling box outlet.

[0004] Existing ingot cooling equipment uses water to remove heat from the ingot by spraying. During the spraying process, if the water temperature is too low, it will increase defects such as deformation of the steel and affect the cooling effect. The optimal water temperature during spraying is around 30 degrees Celsius. Existing ingot cooling equipment cannot accurately control the water temperature, and existing ingot cooling equipment can only spray water onto the upper surface of the ingot, resulting in a higher cooling rate on the upper surface of the ingot than on the lower surface, which will cause a strength difference between the upper and lower surfaces of the ingot. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the utility model provides a casting billet cooling device, which has the advantages of being able to easily control the cooling water temperature and being able to spray and cool the upper and lower sides of the casting billet at the same time, thereby solving the above technical problems.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a casting billet cooling device, comprising: a support frame, an insulation pool is fixedly installed inside the support frame, and a connecting pipe is fixedly installed on the left side of the insulation pool, a liquid pump is fixedly installed on the left side of the connecting pipe, and a guide pipe is fixedly installed below the liquid pump, an atomizing nozzle is fixedly installed above the guide pipe, a valve pipe is installed above the insulation pool, an outer shell is fixedly installed above the support frame, and a negative pressure pool is installed inside the outer shell, heating coils are equidistantly installed on the outside of the negative pressure pool, a top cover is fixedly installed above the negative pressure pool, a vacuum pump is fixedly installed above the top cover, and a water inlet pipe is fixedly installed above the top cover; the support frame can support the insulation pool.

[0009] As an optimal technical solution of the present invention, a support rod is fixedly installed at the bottom of the support frame, and a support plate is fixedly installed on the left side of the support rod, a fixed roller is inserted through the left side of the support rod, a support column is fixedly installed on the left side of the support rod, and a downward piston is inserted through the upper end of the support column; the support rod can support the support frame.

[0010] As an optimal technical solution of the present invention, a receiving block is fixedly installed above the downward pressure piston, and a downward pressure roller is installed through the center of the receiving block, a transmission belt is embedded in the left end of the downward pressure roller, and an adapter ring is embedded in the upper end of the transmission belt, and a drive motor is installed through the center of the adapter ring; the downward pressure piston can adjust the relative position between the downward pressure roller and the fixed roller through the receiving block.

[0011] As an optimal technical solution of the present invention, a water trough is fixedly installed below the support rod, and a drain pipe is installed through the bottom end of the front vertical surface of the inner wall of the water trough. The bottom surface of the inner wall of the water trough is a slope structure with a low front and a high back; the water trough can receive unevaporated liquid, and the drain pipe can facilitate the discharge of water in the water trough.

[0012] As an optimal technical solution of the present invention, the guide pipe has a "U"-shaped structure, and the guide pipe is connected to the insulation pool through a liquid pump and a connecting pipe. The atomizing nozzles are equidistantly installed inside the "U"-shaped structure of the guide pipe, and the atomizing nozzles installed on the upper and lower sides of the guide pipe are mirror-symmetrical; the liquid pump can transport the water in the insulation pool to the guide pipe through the connecting pipe.

[0013] As an optimal technical solution of the present invention, the upper end of the valve tube is connected to the negative pressure pool, and the insulation pool is connected to the negative pressure pool through the valve tube; the valve tube can connect the insulation pool and the negative pressure pool.

[0014] As an optimal technical solution of the present invention, the vacuum pump passes through the top cover and is connected to the negative pressure pool, and the water inlet pipe has a valve structure; the vacuum pump can extract the gas inside the negative pressure pool, so that the inside of the negative pressure pool is in a negative pressure state, thereby changing the boiling point of the water inside the negative pressure pool.

[0015] Compared with the prior art, the present invention provides a casting cooling device with the following beneficial effects:

[0016] 1. The utility model is provided with a vacuum pump. Since the vacuum pump is connected to the negative pressure pool, when the valves on the water inlet pipe and the valve pipe are closed, the negative pressure pool is in a sealed state. The gas inside the negative pressure pool is extracted by the vacuum pump, so that the inside of the negative pressure pool is in a negative pressure state. The pressure inside the negative pressure pool is controlled by the vacuum pump to change the boiling point of the water inside the negative pressure pool to about 30 degrees Celsius. After the water reaches 30 degrees Celsius through the heating coil, the water will no longer absorb heat. In this way, the temperature of the cooling water is controlled, thereby preventing the cooling water temperature from being too high or too low and affecting the cooling of the casting.

[0017] 2. The utility model sets a guide pipe and uses a liquid pump to transport the cooling water inside the insulation pool through the guide pipe to the inside of the atomizing nozzle. When being transported by the lower pressure roller, the billet will pass through the internal area of ​​the "U"-shaped structure of the guide pipe, and the upper and lower surfaces of the billet will be sprayed and cooled by the atomizing nozzle installed in a mirror image on the guide pipe. This method can avoid the cooling rate of the upper surface of the billet being higher than that of the lower surface, thereby avoiding the strength difference between the upper and lower surfaces of the billet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the insulation pool and the support frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the heating coil and the negative pressure pool of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the lower pressure roller and the fixed roller of the utility model;

[0022] Among them: 1. Support frame; 11. Insulation tank; 12. Connecting pipe; 13. Liquid pump; 14. Diversion pipe; 15. Atomizing nozzle; 16. Valve pipe; 2. Outer shell; 21. Negative pressure tank; 22. Heating coil; 23. Top cover; 24. Vacuum pump; 25. Water inlet pipe; 3. Support rod; 31. Support plate; 32. Fixed roller; 33. Support column; 34. Pressing piston; 35. Support block; 36. Pressing roller; 37. Transmission belt; 38. Adapter ring; 39. Drive motor; 310. Sink; 311. Drain pipe. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] See also Figure 1 — Figure 4 In this embodiment, a casting billet cooling device includes: a support frame 1, an insulation pool 11 is fixedly installed inside the support frame 1, and a connecting pipe 12 is fixedly installed on the left side of the insulation pool 11, a liquid pump 13 is fixedly installed on the left side of the connecting pipe 12, and a guide pipe 14 is fixedly installed below the liquid pump 13, an atomizing nozzle 15 is fixedly installed above the guide pipe 14, and a valve pipe 16 is inserted above the insulation pool 11.

[0027] The guide pipe 14 is a "U"-shaped structure. The guide pipe 14 is connected to the insulation pool 11 through the liquid pump 13 and the connecting pipe 12. The atomizing nozzles 15 are equidistantly installed inside the "U"-shaped structure of the guide pipe 14, and the atomizing nozzles 15 installed on the upper and lower sides of the guide pipe 14 are mirror-symmetrical.

[0028] The upper end of the valve tube 16 is connected to the negative pressure pool 21 , and the insulation pool 11 is connected to the negative pressure pool 21 through the valve tube 16 .

[0029] Specifically, the support frame 1 can support the insulation pool 11, the insulation pool 11 can reduce the heat loss of the heated water, the connecting pipe 12 can connect the insulation pool 11 and the liquid pump 13, the liquid pump 13 can transport the water in the insulation pool 11 to the guide pipe 14 through the connecting pipe 12, the guide pipe 14 can facilitate the transportation of water to the atomizing nozzles 15 on the upper and lower sides, the atomizing nozzles 15 can atomize the water and spray it onto the surface of the ingot, and the valve pipe 16 can connect the insulation pool 11 and the negative pressure pool 21.

[0030] A shell 2 is fixedly installed above the support frame 1, and a negative pressure pool 21 is installed inside the shell 2, a heating coil 22 is installed equidistantly on the outside of the negative pressure pool 21, a top cover 23 is fixedly installed above the negative pressure pool 21, a vacuum pump 24 is fixedly installed above the top cover 23, and a water inlet pipe 25 is fixedly installed above the top cover 23.

[0031] The vacuum pump 24 passes through the top cover 23 and is in communication with the negative pressure tank 21 , and the water inlet pipe 25 has a valve structure.

[0032] Specifically, the outer shell 2 can protect the heating coil 22, the negative pressure pool 21 can store a certain volume of water, the heating coil 22 can heat the water inside the negative pressure pool 21, and the top cover 23 can support the vacuum pump 24. The vacuum pump 24 can extract the gas inside the negative pressure pool 21, so that the inside of the negative pressure pool 21 is in a negative pressure state, thereby changing the boiling point of the water inside the negative pressure pool 21, and the water inlet pipe 25 can facilitate the addition of water to the negative pressure pool 21.

[0033] A support rod 3 is fixedly installed at the bottom of the support frame 1, and a support plate 31 is fixedly installed on the left side of the support rod 3, a fixed roller 32 is inserted through the left side of the support rod 3, a support column 33 is fixedly installed on the left side of the support rod 3, and a downward piston 34 is inserted through the upper end of the support column 33.

[0034] A receiving block 35 is fixedly installed above the downward pressure piston 34, and a downward pressure roller 36 is installed through the center of the receiving block 35. A transmission belt 37 is installed in an interlocking manner at the left end of the downward pressure roller 36, and an adapter ring 38 is installed in an interlocking manner at the upper end of the transmission belt 37. A drive motor 39 is installed through the center of the adapter ring 38.

[0035] A water tank 310 is fixedly installed below the support rod 3, and a drainage pipe 311 is inserted into the bottom end of the front vertical surface of the inner wall of the water tank 310. The bottom surface of the inner wall of the water tank 310 is a slope structure with a low front and a high back.

[0036] Specifically, the support rod 3 can support the support frame 1, the support plate 31 can support the ingot, the fixed roller 32 can facilitate the movement of the ingot, the support column 33 can support the support rod 3, and the downward pressure piston 34 can adjust the relative position between the downward pressure roller 36 and the fixed roller 32 through the receiving block 35, so that when the driving motor 39 drives the downward pressure roller 36 to rotate through the transmission belt 37 and the adapter ring 38, the relative pressure between the downward pressure roller 36 and the ingot is sufficient for the downward pressure roller 36 to drive the ingot to move, the water tank 310 can receive the unevaporated liquid, and the drain pipe 311 can facilitate the discharge of water in the water tank 310.

[0037] When in use, first close the valve of the valve pipe 16, then pour cooling water into the negative pressure pool 21 through the water inlet pipe 25, then close the valve of the water inlet pipe 25, and then pneumatically heat the negative pressure pool 21 with the heating coil 22, and start the vacuum pump 24 at the same time. When the valves on the water inlet pipe 25 and the valve pipe 16 are closed, the negative pressure pool 21 is in a sealed state, and the gas inside the negative pressure pool 21 is extracted through the vacuum pump 24, so that the inside of the negative pressure pool 21 is in a negative pressure state. The pressure inside the negative pressure pool 21 is controlled by the vacuum pump 24 to change the boiling point of the water inside the negative pressure pool 21, so that the boiling point of the water is about 30 degrees Celsius. After the water reaches 30 degrees Celsius through the heating coil 22, the water will no longer absorb heat, and the cooling is controlled in this way. The temperature of the cooling water is adjusted to prevent the cooling water temperature from being too high or too low and affecting the cooling of the ingot. After the cooling water in the negative pressure pool 21 reaches the boiling point, the valve of the valve pipe 16 is opened, and the cooling water heated in the negative pressure pool 21 will enter the insulation pool 11 through the valve pipe 16. The liquid pump 13 is started to transport the cooling water in the insulation pool 11 to the inside of the atomizing nozzle 15 through the guide pipe 14. In the process of being transported by the lower pressure roller 36, the ingot will pass through the internal area of ​​the "U"-shaped structure of the guide pipe 14, and the upper and lower surfaces of the ingot will be sprayed for cooling through the atomizing nozzle 15 installed in a mirror image on the guide pipe 14. This method can prevent the cooling rate of the upper surface of the ingot from being higher than that of the lower surface, thereby avoiding the strength difference between the upper and lower surfaces of the ingot.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A casting cooling device comprising: The support frame (1) is characterized in that a heat preservation pool (11) is fixedly installed inside the support frame (1), and a connecting pipe (12) is fixedly installed on the left side of the heat preservation pool (11), a liquid pump (13) is fixedly installed on the left side of the connecting pipe (12), and a guide pipe (14) is fixedly installed below the liquid pump (13), an atomizing nozzle (15) is fixedly installed above the guide pipe (14), a valve pipe (16) is installed above the heat preservation pool (11), a shell (2) is fixedly installed above the support frame (1), and a negative pressure pool (21) is installed inside the shell (2), a heating coil (22) is equidistantly installed on the outside of the negative pressure pool (21), a top cover (23) is fixedly installed above the negative pressure pool (21), a vacuum pump (24) is fixedly installed above the top cover (23), and a water inlet pipe (25) is fixedly installed above the top cover (23).

2. A casting cooling device according to claim 1, characterized in that: A support rod (3) is fixedly installed below the support frame (1), and a support plate (31) is fixedly installed on the left side of the support rod (3), a fixed roller (32) is inserted through the left side of the support rod (3), a support column (33) is fixedly installed on the left side of the support rod (3), and a downward pressing piston (34) is inserted through the upper end of the support column (33).

3. A casting cooling device according to claim 2, characterized in that: A receiving block (35) is fixedly installed above the pressing piston (34), and a pressing roller (36) is inserted through the center of the receiving block (35). A transmission belt (37) is embedded in the left end of the pressing roller (36), and an adapter ring (38) is embedded in the upper end of the transmission belt (37). A driving motor (39) is inserted through the center of the adapter ring (38).

4. The casting cooling device according to claim 2, characterized in that: A water trough (310) is fixedly installed below the support rod (3), and a drainage pipe (311) is inserted and installed at the bottom end of the front side vertical surface of the inner wall of the water trough (310). The bottom surface of the inner wall of the water trough (310) is a slope structure with a low front and a high back.

5. The casting cooling device according to claim 1, characterized in that: The guide pipe (14) is a "U"-shaped structure. The guide pipe (14) is connected to the insulation pool (11) through a liquid pump (13) and a connecting pipe (12). The atomizing nozzles (15) are equidistantly installed inside the "U"-shaped structure of the guide pipe (14), and the atomizing nozzles (15) installed on the upper and lower sides of the guide pipe (14) are mirror-symmetrical.

6. The casting cooling device according to claim 1, characterized in that: The upper end of the valve pipe (16) is in communication with the negative pressure pool (21), and the heat preservation pool (11) is in communication with the negative pressure pool (21) via the valve pipe (16).

7. The casting cooling device according to claim 1, characterized in that: The vacuum pump (24) passes through the top cover (23) and is in communication with the negative pressure pool (21), and the water inlet pipe (25) is provided with a valve structure.

Images