Steel billet cooling and spraying equipment

Abstract

The utility model relates to the technical field of steel billet cooling, and discloses steel billet cooling spraying equipment. The steel billet cooling and spraying equipment comprises supporting feet, a shell is fixedly installed above the supporting feet, a heat insulation layer is fixedly installed in the shell, a heating coil is fixedly installed in the shell, a heat conduction pool is installed in the heating coil in a penetrating mode, and a heating pool is fixedly installed in the heat conduction pool. Through the arrangement of the temperature sensor, the temperature of liquid in the heat conduction pool is monitored, so that the current intensity of the heating coil is conveniently controlled, and the temperature of the liquid in the heat conduction pool is controlled within a certain interval; the heat of the liquid in the heat conduction pool can be transferred into the cooling liquid in the heating pool through the heating pool, and the temperature of the cooling liquid is controlled in this way, so that the situation that the temperature of the cooling liquid is too low or too high, so that a rolled piece is prone to brittle fracture and cracks, and the quality of steel is seriously affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel billet cooling, in particular to steel billet cooling spraying equipment. Background Art

[0002] Thick steel plates are widely used in engineering projects such as bridges, offshore oil platforms, nuclear power plants, and large ships. Their internal quality is directly related to the safety and reliability of these projects. Therefore, the looseness, segregation, delamination, non-metallic inclusions, and cracks in the steel plates may cause the steel plates to fail ultrasonic flaw detection. Moreover, the causes of flaw detection defects in steel plates of different composition series and thickness specifications are also different.

[0003] An existing Chinese utility model patent, CN214079158U, is available for reference. It discloses a conveniently adjustable secondary cooling section standpipe, comprising a main pipe, a spray pipe, and an extension pipe. The spray pipe is evenly connected to and communicates with the main pipe, while the extension pipe is sleeved over the spray pipe and movably connected to it. The free end of the extension pipe is movably connected to a spray head. Adjacent extension pipes are connected by a connecting rod equipped with an adjustment device, the other end of which is connected to the main pipe. This standpipe effectively solves the cumbersome replacement process associated with existing standpipes.

[0004] When the billet is cooling, if the cooling water temperature is too low or too high, the rolled piece will be prone to brittle fracture and cracks, which will seriously affect the quality of the steel. When the rolled piece is being rolled, due to the constant friction between the rollers and the metal plates, if the impurity content in the cooling water is too high, it will promote the wear of the rollers, increase the maintenance cost of the equipment, and extend the maintenance cycle of the rollers. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the utility model provides a steel billet cooling spray equipment, which has the advantages of being able to control the water temperature of the coolant and reduce the impurity content in the cooling water, 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 billet cooling spraying device, comprising: a support leg, a shell is fixedly installed on the top of the support leg, and a heat insulation layer is fixedly installed inside the shell, a heating coil is fixedly installed inside the shell, and a heat conduction pool is inserted into the inside of the heating coil, a heating pool is fixedly installed inside the heat conduction pool, and a fixed frame is embedded in the inside of the heating pool, a secondary filter is fixedly installed inside the fixed frame, a top cover is fixedly installed on the top of the shell, and a water inlet pipe is inserted into the center of the top cover, a primary filter is fixedly installed inside the water inlet pipe, a temperature sensor is fixedly installed on the left side of the top cover, and a connecting pipe is fixedly installed on the right side of the temperature sensor, and a probe is fixedly installed below the connecting pipe; the support leg can support the shell.

[0009] As an optimal technical solution of the present invention, the support legs are fixedly installed at the four corners of the bottom surface of the outer shell, the insulation layer is a tubular structure, and the outer wall of the insulation layer is in contact with the inner wall of the outer shell; the insulation layer is made of asbestos, which can reduce heat loss.

[0010] As an optimal technical solution of the present invention, the secondary filter is fixedly connected to the heating pool through a fixed frame, and the heating coil is equidistantly surrounded by the outside of the heat conduction pool; the heating coil can heat the liquid inside the heat conduction pool.

[0011] As an optimal technical solution of the present invention, the aperture of the first-level filter is larger than that of the second-level filter, the bottom surface of the heating pool is fixedly connected to the bottom surface of the inner wall of the heat conduction pool, and the inner diameter of the heat conduction pool is larger than the outer diameter of the heating pool; the first-level filter can prevent large particles from entering the interior of the heating pool.

[0012] As an optimal technical solution of the present invention, the water inlet pipe passes through the top cover from the center of the top cover, the connecting pipe passes through the top cover, and the bottom end of the probe is located in the area between the heat conduction pool and the heating pool; the probe can facilitate the temperature sensor to monitor the temperature of various areas inside the heat conduction pool.

[0013] As an optimal technical solution of the present invention, a water outlet pipe is installed below the heating pool, and a liquid pump is fixedly installed at the front end of the water outlet pipe, a receiving pipe is fixedly installed at the front end of the liquid pump, a branch pipe is fixedly installed below the receiving pipe, and an atomizing nozzle is fixedly installed below the branch pipe; the water outlet pipe can facilitate the connection between the liquid pump and the heating pool.

[0014] As the preferred technical solution of the present invention, the water outlet pipe passes through the outer shell, the heat conduction pool, and the heating pool. The liquid pump is connected to the heating pool through the water outlet pipe. The atomizing nozzle is installed equidistantly below the branch pipe; the receiving pipe and the branch pipe can guide the liquid transported by the liquid pump into the atomizing nozzle.

[0015] Compared with the prior art, the present invention provides a billet cooling spraying device with the following features:

[0016] Beneficial effects:

[0017] 1. The utility model monitors the temperature of the liquid inside the heat conduction pool by setting a temperature sensor, so as to control the current intensity of the heating coil and control the temperature of the liquid inside the heat conduction pool within a certain range. Since the heating pool is made of copper with good thermal conductivity, the heat of the liquid inside the heat conduction pool can be transferred to the coolant inside the heating pool through the heating pool. In this way, the temperature of the coolant is controlled to avoid the coolant temperature being too low or too high, which may cause brittle fracture and cracks in the rolled piece, thereby seriously affecting the quality of the steel.

[0018] 2. The utility model is provided with a primary filter and a secondary filter. The primary filter is installed inside the water inlet pipe. When the coolant enters the heating pool through the water inlet pipe, the primary filter can block the larger particles inside the coolant. After the coolant enters the heating pool, the secondary filter inside the heating pool can block the smaller particles inside the coolant, thereby reducing the particulate matter content in the coolant and avoiding excessive impurity content in the cooling water to cause wear of the rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the shell and the heat insulation layer of the utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the top cover and the water inlet pipe of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the atomizing nozzle and the branch pipe of the utility model;

[0023] Among them: 1. Support leg; 11. Outer shell; 12. Insulation layer; 13. Heating coil; 14. Heat conduction pool; 15. Heating pool; 16. Fixing frame; 17. Secondary filter; 2. Top cover; 21. Water inlet pipe; 22. Primary filter; 23. Temperature sensor; 24. Connecting pipe; 25. Probe; 3. Water outlet pipe; 31. Liquid pump; 32. Connecting pipe; 33. Branch pipe; 34. Atomizing nozzle. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] See also Figure 1 — Figure 4 In this embodiment, a billet cooling spraying device includes: a support leg 1, a shell 11 is fixedly installed above the support leg 1, and a heat insulation layer 12 is fixedly installed inside the shell 11, a heating coil 13 is fixedly installed inside the shell 11, and a heat conduction pool 14 is inserted into the interior of the heating coil 13, a heating pool 15 is fixedly installed inside the heat conduction pool 14, and a fixed frame 16 is embedded in the interior of the heating pool 15, and a secondary filter 17 is fixedly installed inside the fixed frame 16.

[0028] The legs 1 are fixedly mounted at the four corners of the bottom surface of the housing 11 . The heat insulating layer 12 is a tubular structure, and the outer wall of the heat insulating layer 12 contacts the inner wall of the housing 11 .

[0029] The secondary filter 17 is fixedly connected to the heating pool 15 via the fixing frame 16 , and the heating coil 13 surrounds the outside of the heat conduction pool 14 at equal distances.

[0030] Specifically, the support leg 1 can support the outer shell 11, the outer shell 11 can protect the internal heating coil 13, the insulation layer 12 is made of asbestos, which can reduce heat loss, the heating coil 13 can heat the liquid inside the heat conduction pool 14, and the heating pool 15 is made of copper, which can facilitate heat transfer. The fixing frame 16 can fix the secondary filter 17, and the secondary filter 17 can prevent some particulate matter from entering the water outlet pipe 3.

[0031] A top cover 2 is fixedly installed on the top of the outer shell 11, and a water inlet pipe 21 is installed through the center of the top cover 2. A first-level filter screen 22 is fixedly installed inside the water inlet pipe 21. A temperature sensor 23 is fixedly installed on the left side of the top cover 2, and a connecting pipe 24 is fixedly installed on the right side of the temperature sensor 23. A probe 25 is fixedly installed below the connecting pipe 24.

[0032] The aperture of the primary filter 22 is larger than that of the secondary filter 17 . The bottom surface of the heating pool 15 is fixedly connected to the bottom surface of the inner wall of the heat conduction pool 14 . The inner diameter of the heat conduction pool 14 is larger than the outer diameter of the heating pool 15 .

[0033] The water inlet pipe 21 passes through the top cover 2 from the center of the top cover 2 , the connecting pipe 24 passes through the top cover 2 , and the bottom end of the probe 25 is located in the area between the heat conduction pool 14 and the heating pool 15 .

[0034] Specifically, the top cover 2 can reduce heat loss, the water inlet pipe 21 can facilitate the addition of liquid to the inside of the heating pool 15, the first-level filter 22 can prevent large particles from entering the inside of the heating pool 15, the temperature sensor 23 is an LCD-110 digital thermometer, which can monitor the liquid temperature inside the heat transfer pool 14, and the connecting pipe 24 can connect the temperature sensor 23 with the probe 25. The probe 25 can facilitate the temperature sensor 23 to monitor the temperature of various areas inside the heat transfer pool 14.

[0035] A water outlet pipe 3 is installed below the heating pool 15, and a liquid pump 31 is fixedly installed at the front end of the water outlet pipe 3. A receiving pipe 32 is fixedly installed at the front end of the liquid pump 31. A branch pipe 33 is fixedly installed below the receiving pipe 32, and an atomizing nozzle 34 is fixedly installed below the branch pipe 33.

[0036] The water outlet pipe 3 passes through the housing 11 , the heat conduction pool 14 , and the heating pool 15 . The liquid pump 31 is connected to the heating pool 15 through the water outlet pipe 3 . The atomizing nozzles 34 are equidistantly installed below the branch pipe 33 .

[0037] Specifically, the water outlet pipe 3 can facilitate the connection between the liquid pump 31 and the heating pool 15. The liquid pump 31 can transport liquid. The receiving pipe 32 and the branch pipe 33 can guide the liquid transported by the liquid pump 31 into the atomizing nozzle 34. The model of the atomizing nozzle 34 is CW52, which can atomize the liquid and spray it more evenly onto the surface of the steel billet.

[0038] When in use, first, the atomizing nozzle 34 needs to be located above the steel billet stroke. After a certain amount of water is poured into the heat conduction pool 14, the top cover 2 is installed, and the water inlet pipe 21 is connected to the water source. The primary filter 22 is installed inside the water inlet pipe 21. When the coolant passes through the water inlet pipe 21 and enters the heating pool 15, the primary filter 22 can block the larger particles inside the coolant. After the coolant enters the heating pool 15, the secondary filter 17 inside the heating pool 15 can block the smaller particles inside the coolant, thereby reducing the particulate matter content in the coolant and avoiding excessive impurity content in the cooling water that causes wear of the rolling mill. The heating coil 13 can heat the liquid inside the heat conduction pool 14, and the temperature sensor 23 is used to monitor the liquid temperature inside the heat conduction pool 14, so as to control the heating coil 13. The current intensity is such that the temperature of the liquid inside the heat conduction pool 14 is controlled within a certain range. Since the heating pool 15 is made of copper with good thermal conductivity, the heat of the liquid inside the heat conduction pool 14 can be transferred to the coolant inside the heating pool 15 through the heating pool 15. In this way, the temperature of the coolant is controlled to avoid the coolant temperature being too low or too high, which may cause brittle fracture and cracks in the rolled piece, thereby seriously affecting the quality of the steel. Since the liquid pump 31 is connected to the heat conduction pool 14 through the water outlet pipe 3, when the liquid pump 31 is turned on, the coolant inside the heat conduction pool 14 can be transported to the inside of the receiving pipe 32 and the branch pipe 33 through the water outlet pipe 3. After entering the inside of the atomizing nozzle 34, the coolant will be sprayed out in an atomized state by the atomizing nozzle 34, so that the liquid is atomized and sprayed more evenly onto the surface of the steel billet.

[0039] 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 billet cooling spraying device, comprising: The support leg (1) is characterized in that a shell (11) is fixedly installed on the top of the support leg (1), and a heat insulation layer (12) is fixedly installed inside the shell (11), a heating coil (13) is fixedly installed inside the shell (11), and a heat conduction pool (14) is inserted and installed inside the heating coil (13), a heating pool (15) is fixedly installed inside the heat conduction pool (14), and a fixed frame (16) is embedded and installed inside the heating pool (15), and the fixed frame (16) is fixedly installed inside the fixed frame (1 6), a secondary filter screen (17) is fixedly installed inside the housing (11), a top cover (2) is fixedly installed above the housing (11), and a water inlet pipe (21) is inserted through the center of the top cover (2), a primary filter screen (22) is fixedly installed inside the water inlet pipe (21), a temperature sensor (23) is fixedly installed on the left side of the top cover (2), and a connecting pipe (24) is fixedly installed on the right side of the temperature sensor (23), and a probe (25) is fixedly installed below the connecting pipe (24).

2. The billet cooling spraying equipment according to claim 1, characterized in that: The support legs (1) are fixedly mounted at the four corners of the bottom surface of the outer shell (11); the heat insulating layer (12) is a tubular structure; the outer wall of the heat insulating layer (12) contacts the inner wall of the outer shell (11).

3. The billet cooling spraying equipment according to claim 1, characterized in that: The secondary filter (17) is fixedly connected to the heating pool (15) via a fixing frame (16), and the heating coil (13) surrounds the outside of the heat conduction pool (14) at equal distances.

4. The billet cooling spraying equipment according to claim 1, characterized in that: The aperture of the primary filter (22) is larger than that of the secondary filter (17), the bottom surface of the heating pool (15) is fixedly connected to the bottom surface of the inner wall of the heat conduction pool (14), and the inner diameter of the heat conduction pool (14) is larger than the outer diameter of the heating pool (15).

5. The billet cooling spraying equipment according to claim 1, characterized in that: The water inlet pipe (21) passes through the top cover (2) from the center of the top cover (2), the connecting pipe (24) passes through the top cover (2), and the bottom end of the probe (25) is located in the area between the heat conduction pool (14) and the heating pool (15).

6. The billet cooling spraying equipment according to claim 1, characterized in that: A water outlet pipe (3) is installed below the heating pool (15), and a liquid pump (31) is fixedly installed at the front end of the water outlet pipe (3). A receiving pipe (32) is fixedly installed at the front end of the liquid pump (31). A branch pipe (33) is fixedly installed below the receiving pipe (32), and an atomizing nozzle (34) is fixedly installed below the branch pipe (33).

7. The billet cooling spraying equipment according to claim 6, characterized in that: The water outlet pipe (3) passes through the housing (11), the heat conduction pool (14), and the heating pool (15); the liquid pump (31) is connected to the heating pool (15) through the water outlet pipe (3); and the atomizing nozzle (34) is equidistantly installed below the branch pipe (33).

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