Rolled steel cooling device

Abstract

The embodiment of the utility model provides a rolled steel cooling device, and relates to the technical field of rolled steel processing. A rolled steel cooling device comprises a conveying assembly, an atomization cooling assembly and an air cooling drying assembly, steel is driven to enter a conveying cavity by starting a conveying roller belt, an atomization cooling circulation part is started, cooling liquid in a water tank is atomized and cooled after passing through the atomization cooling circulation part, meanwhile, the cooling liquid which is not completely utilized enters the water tank again, and the cooling liquid is cooled through air cooling. After the steel is primarily atomized and cooled, liquid such as condensation beads remains on the surface, the steel enters the connecting cavity through the conveying roller belt, the air cooling machine is started, a large amount of air is generated, the air passes through the array type condensation pipes and becomes cold air, the surface of the steel is dried by the large amount of cold air, secondary cooling is conducted at the same time, and therefore the steel is dried and dehumidified; and the steel is dried and dehumidified after being primarily atomized and cooled, and is secondarily cooled at the same time, so that the cooling effect of the steel is improved.

Description

Technical Field

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

[0002] Steel rolling methods can be divided into hot rolling and cold rolling according to the rolling temperature. According to the relative motion relationship between the workpiece and the rollers during rolling, they can be divided into longitudinal rolling, transverse rolling, and cross rolling. According to the forming characteristics of the rolled product, they can be further divided into general rolling and special rolling. Cycle rolling, spinning, and bending forming are all special rolling methods. In the hot rolling process, hot-rolled steel plates after the finishing process are cooled to the specified steel plate temperature by a cooling device with multiple coolers while being transported from the finishing mill to the coiler. They are then coiled by the coiler. In the hot rolling of steel plates, the cooling state from the finishing process to coiling becomes an important factor in determining the mechanical properties of the steel plates. Water is often used as a cooling medium to cool the steel plates.

[0003] In a steel rolling workpiece cooling device with the prior art publication number CN210907415U, the device includes a water tank, a side guard plate, a diversion tank, a water storage tank, a water pump, a water pipe, a cooling pipe, and a high-pressure atomizing nozzle. The base is placed under the steel rolling conveyor belt, and two side guard plates are respectively located on both sides of the steel rolling conveyor belt. The lower ends of the two side guard plates are vertically connected to the base, and the upper ends of the two side guard plates are connected to the bottom of the water tank. There are multiple parallel arranged directional The base has a drainage trough for drainage below, and a diversion tank fixedly connected to the inner wall of the base. The upper end of the diversion tank is opposite the drainage trough on the rolling conveyor belt. The bottom of the diversion tank is fixedly connected to the upper end of the water storage tank. The bottom of the water storage tank is connected to a water pump via a water supply pipe. The water pump discharge end is connected to the lower end of the water supply pipe. The upper end of the water supply pipe is connected upward to the water tank. Multiple cooling pipes are installed on the bottom of the water tank. Water pipes at the bottom of the water tank are connected to the cooling pipes. Each cooling pipe is installed with multiple high-pressure atomizing nozzles. The existing technology consists of a spraying part, a cooling water circulation part, and a support part. The water tank is installed above the rolling conveyor belt. The cooling water in the water tank is sprayed and cooled on the workpieces on the rolling conveyor belt through the cooling pipes and high-pressure atomizing nozzles at the bottom of the water tank. The diversion tank, water storage tank, and water pump are installed below the rolling conveyor belt. Cooling water falls from the rolling conveyor belt into the diversion tank and water storage tank, and is pumped into the water tank through the water supply pipe by the water pump, thereby recycling the cooling water. In the process of implementing this technical solution, the inventors discovered that the prior art has at least the following problems:

[0004] In the existing technology, cooling water is recycled to atomize and cool steel. However, in actual use, atomization cooling will cause some water vapor to remain on the surface of the steel. If not handled in time, it is easy to cause excessive oxidation of the steel surface, causing premature corrosion and rusting of the steel surface. Utility Model Content

[0005] The purpose of the utility model is to provide a steel rolling cooling device, which can dry the hot-rolled steel plate in time after atomization cooling to avoid excessive oxidation of the steel surface, and can perform multiple cooling on the hot-rolled steel plate to improve the cooling effect of the hot-rolled steel plate.

[0006] An embodiment of the utility model provides a steel rolling cooling device, which includes a transportation component, an atomization cooling component and an air-cooling drying component.

[0007] A transport assembly, the transport assembly comprising a transport roller belt, the transport roller belt being used to transport hot-rolled steel materials;

[0008] A mist cooling assembly, comprising an atomizing box, a water tank, and an atomizing cooling circulation member, wherein the atomizing box is provided with a transport cavity, the transport roller belt passes through the transport cavity, the water tank is fixedly connected to the top of the atomizing box, the atomizing cooling circulation member is fixedly connected to the water tank, and the atomizing cooling circulation member is used to atomize and cool the steel;

[0009] An air-cooled drying component comprises an air-cooled box, an array of condensing tubes and an air cooler. The air-cooled box is provided with a connecting cavity, the transport cavity corresponds to the connecting cavity, the array of condensing tubes is fixedly connected to the top of the air-cooled box and is directly opposite to the transport roller belt, the air cooler is fixedly connected to the top of the air-cooled box, the output end of the air cooler is directly opposite to the array of condensing tubes, and both ends of the array of condensing tubes are fixedly connected to the water tank.

[0010] In a specific embodiment, the atomizing cooling circulation component includes a high-pressure sprayer, a water collecting component and a return water pipe. The high-pressure sprayer is fixedly connected to the water tank, and the output end of the high-pressure sprayer is directly opposite to the transport roller belt. The water collecting component is installed below the atomizing box, and the water collecting component is directly opposite to the transport roller belt. One end of the return water pipe is fixedly connected to the water collecting component, and the other end of the return water pipe is fixedly connected to the water tank.

[0011] In a specific embodiment, the high-pressure sprayer includes a connecting pipe, a spray plate and a high-pressure atomizing nozzle, one end of the connecting pipe is fixedly connected to the bottom end of the water tank, and the other end of the connecting pipe is fixedly connected to the spray plate, the high-pressure atomizing nozzles are evenly distributed on the spray plate, and the output end of the high-pressure atomizing nozzle is directly opposite to the transport roller belt.

[0012] In a specific embodiment, the water collecting element includes a diversion tank and a water storage tank. The diversion tank is located in a square cone structure. The diversion tank is wide at the top and narrow at the bottom. One end of the water storage tank is fixedly connected to the bottom end of the diversion tank, and the other end of the diversion tank is fixedly connected to the return water pipe.

[0013] In a specific embodiment, a high-pressure water pump and a refrigerator are installed on the water tank, and a transport water pump is installed on the return water pipe.

[0014] In a specific embodiment, a water inlet is provided on the water tank.

[0015] In a specific embodiment, a water level gauge is installed on the side of the water tank.

[0016] In a specific embodiment, the air cooler includes a forced air blower and an exhaust fan. The forced air blower is fixedly connected to the top of the air cooling box, and the exhaust fan is evenly fixed to the output end of the forced air blower. The exhaust fan is located below the array condenser.

[0017] In a specific embodiment, a heat insulation board is fixedly connected to the atomization box, and the heat insulation board is located below the water tank.

[0018] In a specific embodiment, temperature-shielding pads are provided on the outsides of the transport cavity and the connecting cavity.

[0019] The beneficial effects of a steel rolling cooling device provided by an embodiment of the present invention are as follows: by starting the transport roller belt, the steel is driven into the transport cavity, the atomizing cooling circulation part is turned on, and the coolant in the water tank is atomized and cooled after passing through the atomizing cooling circulation part, and at the same time, the coolant that is not fully utilized re-enters the water tank. After the steel is initially atomized and cooled, condensation beads and other liquids remain on the surface, and enter the connecting cavity through the transport roller belt, and the air cooler is started to generate a large amount of wind. The wind passes through the array condenser tube to turn it into cold wind, so that the surface of the steel is dried by a large amount of cold wind and cooled for the second time, so that the steel is dried and dehumidified. After the initial atomizing cooling, the steel is dried and dehumidified again, and at the same time, it is cooled for the second time, which improves the cooling effect of the steel, thereby solving the problem in the prior art that the atomizing cooling of the steel will cause some water vapor to remain on the surface of the steel, which may cause excessive oxidation of the steel surface if not handled in time, causing premature corrosion and rust on the steel surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a structural schematic diagram of a steel rolling cooling device according to an embodiment of the present utility model.

[0022] Figure 2This is a schematic structural diagram of an atomizing cooling assembly according to an embodiment of the present utility model.

[0023] Figure 3 This is a schematic structural diagram of the air-cooled drying component of an embodiment of the present utility model.

[0024] Figure 4 This is a schematic structural diagram of the atomizing cooling circulation component of an embodiment of the present utility model.

[0025] Figure 5 This is a schematic structural diagram of a heat-shielding pad according to an embodiment of the present invention.

[0026] Figure 6 This is a schematic structural diagram of an air cooler according to an embodiment of the present utility model.

[0027] Icons: 100-transport assembly; 110-transport roller belt; 200-atomizing cooling assembly; 210-atomizing box; 220-water tank; 221-high-pressure water pump; 222-refrigeration machine; 223-water inlet; 224-water level gauge; 225-heat insulation board; 230-atomizing cooling circulation unit; 231-high-pressure sprayer; 2311-connecting pipe; 2312-spray plate; 2313-high-pressure atomizing nozzle; 232-water collecting unit; 2321-diversion tank; 2322-water storage tank; 233-return water pipe; 234-transport water pump; 240-transport chamber; 300-air-cooled drying assembly; 310-air-cooling box; 320-array condenser; 330-air-cooling machine; 331-forced fan; 332-exhaust fan; 340-connecting chamber; 350-temperature shielding pad; DETAILED DESCRIPTION

[0028] In the prior art, steel is cooled by atomizing and recirculating cooling water. However, in actual use, atomizing cooling can cause some water vapor to remain on the steel surface. If not promptly treated, it can easily lead to excessive oxidation of the steel surface, causing premature corrosion and rust. Therefore, the inventors have developed a steel rolling cooling device that can dry hot-rolled steel plates in a timely manner after atomizing cooling, preventing excessive oxidation of the steel surface. It can also perform multiple cooling operations on the hot-rolled steel plates, improving the cooling effect of the hot-rolled steel plates.

[0029] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0030] Please refer to Figure 1The present invention provides a steel rolling cooling device comprising a transport assembly 100, an atomizing cooling assembly 200, and an air-cooling drying assembly 300. The transport assembly 100 is used to transport hot-rolled steel materials, the atomizing cooling assembly 200 is used to atomize and cool the steel materials, and the air-cooling drying assembly 300 is used to dry the steel materials and perform secondary cooling.

[0031] Please refer to Figure 2 , transport component 100, the transport component 100 includes a transport roller belt 110, and the transport roller belt 110 is used to transport hot-rolled steel materials. Among them, the transport roller belt 110 is supported by a support frame on both sides, so that the middle of the transport roller belt 110 is in a suspended state, which facilitates the steel to enter the atomizing cooling component 200 and the air-cooled drying component 300. Atomizing cooling component 200, the atomizing cooling component 200 includes an atomizing box 210, a water tank 220 and an atomizing cooling circulation component 230, the atomizing box 210 is provided with a transport cavity 240, the transport roller belt 110 passes through the transport cavity 240, the water tank 220 is fixedly connected to the top of the atomizing box 210, the atomizing cooling circulation component 230 is fixedly connected to the water tank 220, and the atomizing cooling circulation component 230 is used to atomize and cool the steel. The atomizing cooling circuit 230 includes a high-pressure sprayer 231, a water collecting element 232, and a return pipe 233. The high-pressure sprayer 231 is fixedly connected to the water tank 220, with its output end facing the transport roller belt 110. The water collecting element 232 is mounted below the atomizing tank 210, directly opposite the transport roller belt 110. One end of the return pipe 233 is fixedly connected to the water collecting element 232, while the other end is fixedly connected to the water tank 220. Each pipe on the water tank 220 is equipped with a flow valve. When steel enters the transport chamber 240, the coolant in the water tank 220 is atomized by the high-pressure sprayer 231, providing initial cooling for the steel. Any unused coolant is collected by the water collecting element 232 and returned to the water tank 220 through the return pipe 233 for reuse.

[0032] Please refer to Figure 3The air-cooled drying component 300 includes an air-cooled box 310, an array condenser 320 and an air cooler 330. The air-cooled box 310 is provided with a connecting cavity 340. The transport cavity 240 corresponds to the connecting cavity 340. The array condenser 320 is fixedly connected to the top of the air-cooled box 310 and is opposite to the transport roller belt 110. The air cooler 330 is fixedly connected to the top of the air-cooled box 310. The output end of the air cooler 330 is opposite to the array condenser 320. Both ends of the array condenser 320 are fixedly connected to the water tank 220. By starting the transport roller belt 110, the steel is driven into the transport chamber 240, and the atomizing cooling circulation part 230 is turned on, so that the coolant in the water tank 220 is atomized and cooled after passing through the atomizing cooling circulation part 230. At the same time, the coolant that is not fully utilized re-enters the water tank 220. After the initial atomizing cooling, condensation beads and other liquids remain on the surface of the steel, and enter the connecting chamber 340 through the transport roller belt 110. The air cooler 330 is started to generate a large amount of wind. The wind passes through the array condenser 320, turning it into cold wind, so that the surface of the steel is dried by a large amount of cold wind and cooled for the second time, so that the steel is dried and dehumidified. After the initial atomizing cooling, the steel is dried and dehumidified again, and is cooled for the second time, which improves the cooling effect of the steel, thereby solving the problem in the prior art that the atomizing cooling of the steel will cause some water vapor to remain on the surface of the steel, which may cause excessive oxidation of the steel surface if not handled in time, causing premature corrosion and rust on the steel surface.

[0033] Please refer to Figure 4The high-pressure sprayer 231 includes a connecting pipe 2311, a spray plate 2312, and a high-pressure atomizing nozzle 2313. One end of the connecting pipe 2311 is fixedly connected to the bottom of the water tank 220, and the other end of the connecting pipe 2311 is fixedly connected to the spray plate 2312. The high-pressure atomizing nozzles 2313 are evenly distributed on the spray plate 2312, and the output ends of the high-pressure atomizing nozzles 2313 are directly opposite the transport roller belt 110. Coolant enters the spray plate 2312 through the connecting pipe 2311 and is then released from the high-pressure atomizing nozzles 2313 under high pressure, forming an atomization structure that facilitates cooling of the steel. The water collection unit 232 comprises a diversion tank 2321 and a water storage tank 2322. The diversion tank 2321 is a square-conical structure, wide at the top and narrow at the bottom. One end of the water storage tank 2322 is fixedly connected to the bottom of the diversion tank 2321, while the other end of the diversion tank 2321 is fixedly connected to the return pipe 233. Unused coolant flows through the diversion tank 2321 into the water storage tank 2322. The transport pump 234 then activates and transports the coolant back to the water tank 220 through the return pipe 233 for reuse. The water tank 220 is equipped with a high-pressure water pump 221 and a refrigeration unit 222. The transport pump 234 is also installed on the return pipe 233. The high-pressure water pump 221 transports the coolant to the high-pressure sprayer 231 and the condenser array 320, while the refrigeration unit 222 ensures that the coolant remains at a low temperature. The water tank 220 is provided with a water inlet 223. The water inlet 223 is convenient for adding coolant into the water tank 220. Figure 4 A heat insulation board 225 is fixedly connected to the atomizing box 210, and the heat insulation board 225 is located below the water tank 220. The heat insulation board 225 is used for heat insulation.

[0034] Please refer to Figure 5 A water level gauge 224 is installed on the side of the water tank 220. The water level gauge 224 is used to observe the capacity of the coolant in the water tank 220 and prevent the water tank 220 from being overloaded. A heat shield 350 is installed on the outside of the transport cavity 240 and the connecting cavity 340. The heat shield 350 is used to prevent water vapor and cold air from escaping and causing waste.

[0035] Please refer to Figure 6 The air cooler 330 includes a forced air blower 331 and an exhaust fan 332. The forced air blower 331 is fixedly connected to the top of the air cooling box 310, and the exhaust fan 332 is evenly fixed to the output end of the forced air blower 331. The exhaust fan 332 is located below the array condenser tube 320. When the forced air blower 331 is turned on, the exhaust fan 332 rotates, increasing the output air volume and making the air volume output more uniform.

[0036] In summary, the working principle of a steel rolling cooling device of an embodiment of the present invention is as follows: by starting the transport roller belt 110, the steel is driven into the transport chamber 240, the cooling liquid is opened to enter the spray plate 2312 through the connecting pipe 2311, and then released from the high-pressure atomizing nozzle 2313 under high pressure, thereby forming an atomizing structure to atomize and cool the steel, and the unused cooling liquid flows into the water storage tank 2322 through the diversion tank 2321, and then the transport water pump 234 is started to transport the cooling liquid back to the water tank 220 through the return pipe 233 for reuse. After the steel is initially atomized and cooled, the residual surface The remaining condensed beads and other liquids enter the connecting cavity 340 through the transport roller belt 110, and the air cooler 330 is started to generate a large amount of wind. The wind passes through the array condenser 320, turning it into cold wind, so that the surface of the steel is dried by a large amount of cold air and cooled secondary at the same time, so that the steel is dried and dehumidified. After the initial atomization cooling, the steel is dried and dehumidified, and at the same time it is cooled secondary, which improves the cooling effect of the steel, thereby solving the problem in the prior art that the atomization cooling of the steel will cause some water vapor to remain on the surface of the steel, which may cause excessive oxidation of the steel surface if not handled in time, causing premature corrosion and rust on the steel surface.

[0037] It is important to note that the configuration and arrangement of the present application, as shown in various exemplary embodiments, are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure will readily appreciate that numerous modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various components, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, components shown as integrally formed may be constructed from multiple parts or components, the positions of components may be inverted or otherwise altered, and the nature, number, or position of discrete components may be modified or changed. Therefore, all such modifications are intended to be encompassed within the scope of this invention. The order or sequence of any process or method steps may be altered or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover structures described herein that perform the function described, and not only structural equivalence but also equivalent structures. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0038] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0039] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A steel rolling cooling device, characterized in that: include A transport assembly (100), the transport assembly (100) comprising a transport roller belt (110), the transport roller belt (110) being used for transporting hot-rolled steel materials; An atomizing cooling assembly (200), the atomizing cooling assembly (200) comprising an atomizing box (210), a water tank (220) and an atomizing cooling circulation member (230), the atomizing box (210) being provided with a transport cavity (240), the transport roller belt (110) passing through the transport cavity (240), the water tank (220) being fixedly connected to the top of the atomizing box (210), the atomizing cooling circulation member (230) being fixedly connected to the water tank (220), and the atomizing cooling circulation member (230) being used for atomizing cooling steel; An air-cooled drying component (300) includes an air-cooled box (310), an array of condensing tubes (320) and an air cooler (330), wherein the air-cooled box (310) is provided with a connecting cavity (340), the transport cavity (240) corresponds to the connecting cavity (340), the array of condensing tubes (320) is fixedly connected to the top of the air-cooled box (310) and is directly opposite to the transport roller belt (110), the air cooler (330) is fixedly connected to the top of the air-cooled box (310), the output end of the air cooler (330) is directly opposite to the array of condensing tubes (320), and both ends of the array of condensing tubes (320) are fixedly connected to the water tank (220).

2. A steel rolling cooling device according to claim 1, characterized in that: The atomizing cooling circulation part (230) includes a high-pressure sprayer (231), a water collecting part (232) and a return water pipe (233). The high-pressure sprayer (231) is fixedly connected to the water tank (220). The output end of the high-pressure sprayer (231) is directly opposite to the transport roller belt (110). The water collecting part (232) is installed below the atomizing box (210) and directly opposite to the transport roller belt (110). One end of the return water pipe (233) is fixedly connected to the water collecting part (232), and the other end of the return water pipe (233) is fixedly connected to the water tank (220).

3. A steel rolling cooling device according to claim 2, characterized in that: The high-pressure sprayer (231) comprises a connecting pipe (2311), a spray plate (2312) and a high-pressure atomizing nozzle (2313). One end of the connecting pipe (2311) is fixedly connected to the bottom end of the water tank (220), and the other end of the connecting pipe (2311) is fixedly connected to the spray plate (2312). The high-pressure atomizing nozzle (2313) is evenly distributed on the spray plate (2312), and the output end of the high-pressure atomizing nozzle (2313) is directly opposite to the transport roller belt (110).

4. A steel rolling cooling device according to claim 3, characterized in that: The water collecting component (232) comprises a diversion tank (2321) and a water storage tank (2322); the diversion tank (2321) is located in a square cone structure; the diversion tank (2321) is wide at the top and narrow at the bottom; one end of the water storage tank (2322) is fixedly connected to the bottom end of the diversion tank (2321); and the other end of the diversion tank (2321) is fixedly connected to the return water pipe (233).

5. A steel rolling cooling device according to claim 4, characterized in that: A high-pressure water pump (221) and a refrigerator (222) are installed on the water tank (220), and a transport water pump (234) is installed on the return water pipe (233).

6. The steel rolling cooling device according to claim 1, characterized in that: The water tank (220) is provided with a water inlet (223).

7. The steel rolling cooling device according to claim 1, characterized in that: A water level gauge (224) is installed on the side of the water tank (220).

8. The steel rolling cooling device according to claim 1, characterized in that: The air cooling machine (330) comprises a strong air blower (331) and an exhaust fan (332), wherein the strong air blower (331) is fixedly connected to the top of the air cooling box (310), and the exhaust fan (332) is evenly fixed to the output end of the strong air blower (331), and the exhaust fan (332) is located below the array condenser (320).

9. The steel rolling cooling device according to claim 1, characterized in that: A heat insulation plate (225) is fixedly connected to the atomization box (210), and the heat insulation plate (225) is located below the water tank (220).

10. The steel rolling cooling device according to claim 1, characterized in that: A heat shield pad (350) is provided on the outside of the transport cavity (240) and the connection cavity (340).

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