Steel coil water cooling device

Abstract

The utility model relates to the technical field of heating furnace equipment, in particular to a steel coil water cooling device which comprises a quick cooling pool and a waste water treatment pool, a water inlet pipe and a water outlet pipe are arranged on the quick cooling pool, and the water outlet pipe is communicated with the waste water treatment pool. A water level sensor is arranged on the pool wall of the rapid cooling pool, an electric control valve is arranged on the water inlet pipe, and the electric control valve controls the water inlet flow of the water inlet pipe according to signals of the water level sensor. The steel coil water-cooling device has the advantages that the steel coil water-cooling device is arranged aiming at a high-temperature steel coil offline from a hot rolling production line, after the high-temperature steel coil is put into the quick-cooling pool, the electric control valve arranged on the water inlet pipe controls the water inlet flow of the water inlet pipe according to signals of the water level sensor, and when the water level is lower than the set height, water is fed. The water outlet pipe drains water outwards according to needs, cooling water with impurities and high temperature is discharged, and stable water cooling is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of heating furnace equipment, and in particular to a water cooling device for steel coils. Background Technology

[0002] After hot-rolled steel coils are produced from the hot rolling production line, they need to be cooled to a certain temperature before subsequent processes, such as pickling, can be carried out to complete the final steel product. The purpose of post-rolling cooling is to prevent the high temperature of the hot-rolled steel coils from adversely affecting the subsequent pickling production line equipment. Specifically, after the hot-rolled steel coils come off the hot rolling production line, they need to be cooled naturally to a temperature below 80°C to meet the requirements for subsequent pickling production line operation, which takes 2-5 days.

[0003] If the hot-rolled coil is held at high temperatures for too long, the quality of the iron oxide scale cannot be guaranteed, which will affect the pickling quality. Furthermore, an excessively long high-temperature holding time will cause the iron oxide scale to thicken too quickly, leading to excessive consumption of subsequent acid solutions and posing a serious environmental challenge. The high-temperature holding time of the steel coil is also affected by seasonal variations and differences in ventilation conditions in the hot-rolled coil storage area. In particular, during summer, surface defects such as coarse grains and mixed grains may occur, resulting in unstable surface quality of the hot-rolled coil. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a water cooling device for rapid and efficient cooling of steel coils.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a steel coil water cooling device is provided, including a rapid cooling tank and a wastewater treatment tank. The rapid cooling tank is provided with an inlet pipe and an outlet pipe, and the outlet pipe is connected to the wastewater treatment tank.

[0006] The rapid cooling tank is equipped with a water level sensor on its wall, and the water inlet pipe is equipped with an electrically controlled valve. The electrically controlled valve controls the water flow rate of the water inlet pipe according to the signal from the water level sensor.

[0007] The beneficial effects of this utility model are as follows: This water-cooling device for steel coils is designed for high-temperature steel coils after they have come off the hot-rolling production line. After the high-temperature steel coil is placed in the rapid cooling tank, an electrically controlled valve on the inlet pipe controls the water flow rate based on a signal from a water level sensor. The inlet opens when the water level is below a set height. The outlet pipe drains water as needed, discharging cooling water containing impurities and at high temperatures, achieving stable water cooling. The outlet pipe lowers the water temperature in the rapid cooling tank and replenishes evaporated water. This water-cooling device for steel coils offers excellent cooling performance, reduces the operator's workload, and improves convenience. Attached Figure Description

[0008] Figure 1This is a structural schematic diagram of a steel coil water cooling device according to a specific embodiment of the present utility model;

[0009] Figure 2 A top view of the rapid cooling tank of a steel coil water cooling device according to a specific embodiment of this utility model;

[0010] Label Explanation:

[0011] 1. Quick-cooling tank; 11. Inlet pipe; 12. Electrically controlled valve; 13. Outlet pipe; 14. Water level sensor; 15. Steel coil placement seat; 16. High-temperature resistant rubber sheet; 2. Wastewater treatment tank. Detailed Implementation

[0012] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0013] This utility model provides a steel coil water cooling device, including a rapid cooling tank and a wastewater treatment tank. The rapid cooling tank is provided with an inlet pipe and an outlet pipe, and the outlet pipe is connected to the wastewater treatment tank.

[0014] The rapid cooling tank is equipped with a water level sensor on its wall, and the water inlet pipe is equipped with an electrically controlled valve. The electrically controlled valve controls the water flow rate of the water inlet pipe according to the signal from the water level sensor.

[0015] The beneficial effects of this utility model are as follows: The steel coil water cooling device of this utility model is designed for high-temperature steel coils after they have come off the hot rolling production line. After the high-temperature steel coil is placed in the rapid cooling tank, the electrically controlled valve on the inlet pipe controls the water flow rate according to the signal from the water level sensor. When the water level is lower than the set height, the inlet pipe opens. The outlet pipe drains water as needed, discharging cooling water containing impurities and at high temperature, achieving stable water cooling, reducing the water temperature in the rapid cooling tank, and replenishing the evaporated water, resulting in excellent cooling effect. It also reduces the operational burden on personnel and improves convenience.

[0016] Furthermore, in the aforementioned steel coil water cooling device, a steel coil placement seat is provided at the bottom of the rapid cooling pool, and the cross-section of the steel coil placement seat is V-shaped.

[0017] Furthermore, in the aforementioned steel coil water cooling device, the surface of the steel coil placement seat is provided with a removable high-temperature resistant rubber plate.

[0018] As described above, a detachable high-temperature resistant rubber sheet is provided, which allows for easy replacement after the high-temperature resistant rubber sheet wears out.

[0019] Furthermore, in the aforementioned steel coil water cooling device, the high-temperature resistant rubber plate is fixed to the steel coil placement seat by bolts.

[0020] Furthermore, in the aforementioned steel coil water cooling device, the angle between the cross-section of the steel coil placement seat and the horizontal plane is 30-45 degrees.

[0021] Furthermore, in the aforementioned steel coil water cooling device, the surface of the steel coil placement seat is provided with protrusions.

[0022] As described above, the surface of the steel coil placement seat is provided with protrusions, which leave a gap between the steel coil and the steel coil placement seat to facilitate heat dissipation.

[0023] Furthermore, in the aforementioned steel coil water cooling device, the surface of the steel coil placement seat is wavy.

[0024] As described above, the surface of the steel coil placement seat is wavy, leaving a gap between the steel coil and the steel coil placement seat to facilitate heat dissipation.

[0025] Furthermore, in the aforementioned steel coil water cooling device, a conical filter screen is provided in the wastewater treatment tank, and the conical filter screen is located below the outlet of the water outlet pipe.

[0026] As described above, the above settings enable the circulating water to be filtered to remove impurities.

[0027] Furthermore, in the aforementioned steel coil water cooling device, the wastewater treatment tank is equipped with a sedimentation tank, and the bottom of the sedimentation tank is equipped with a sludge removal pipe.

[0028] As described above, the above settings further clean the circulating water.

[0029] Furthermore, in the aforementioned steel coil water cooling device, the wastewater treatment tank is connected to the inlet pipe via a circulating pump.

[0030] As described above, the wastewater treatment tank is connected to the inlet pipe via a circulation pump, which enables the recycling of water resources.

[0031] Example 1

[0032] Please refer to Figure 1 and Figure 2 As shown, a steel coil water cooling device includes a rapid cooling tank 1 and a wastewater treatment tank 2. The rapid cooling tank 1 is provided with an inlet pipe 11 and an outlet pipe 13, and the outlet pipe 13 is connected to the wastewater treatment tank 2.

[0033] A water level sensor 14 is installed on the wall of the rapid cooling tank 1, and an electrically controlled valve 12 is installed on the water inlet pipe 11. The electrically controlled valve 12 controls the water flow rate of the water inlet pipe 11 according to the signal of the water level sensor 14.

[0034] The bottom of the rapid cooling tank 1 is provided with a steel coil placement seat 15, the cross-section of which is V-shaped. A detachable high-temperature resistant rubber sheet 16 is provided on the surface of the steel coil placement seat 15. The high-temperature resistant rubber sheet 16 is fixed to the steel coil placement seat 15 with bolts. The angle between the cross-section of the steel coil placement seat 15 and the horizontal plane is 30-45 degrees.

[0035] Application of the steel coil water cooling device of this utility model:

[0036] After the hot rolling production line comes off, the high-temperature steel coils are placed on the steel coil placement seat 15 in the quick-cooling pool 1 for cooling.

[0037] After the rapid cooling tank 1 has been used for a period of time, the water level will drop. The electric control valve 12 on the inlet pipe 11 controls the water flow rate of the inlet pipe 11 according to the real-time signal of the water level sensor 14. When the water level is lower than the set height, the inlet is opened.

[0038] The outlet pipe 13 drains water as needed (periodically or according to the turbidity of the water), discharging cooling water containing impurities and at high temperatures to achieve stable water cooling. The outlet pipe lowers the water temperature in the rapid cooling tank 1 and replenishes the evaporated water. This utility model of a steel coil water cooling device offers excellent cooling performance, reduces the operator's workload, and improves convenience.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A water-cooling device for steel coils, characterized in that, It includes a rapid cooling tank and a wastewater treatment tank. The rapid cooling tank is equipped with an inlet pipe and an outlet pipe, and the outlet pipe is connected to the wastewater treatment tank. The rapid cooling tank is equipped with a water level sensor on its wall, and the water inlet pipe is equipped with an electrically controlled valve. The electrically controlled valve controls the water flow rate of the water inlet pipe according to the signal from the water level sensor.

2. The steel coil water cooling device according to claim 1, characterized in that, The bottom of the rapid cooling tank is provided with a steel coil placement seat, and the cross-section of the steel coil placement seat is V-shaped.

3. The steel coil water cooling device according to claim 2, characterized in that, The surface of the steel coil placement seat is provided with a removable high-temperature resistant rubber plate.

4. The steel coil water cooling device according to claim 3, characterized in that, The high-temperature resistant rubber sheet is fixed to the steel coil placement seat by bolts.

5. The steel coil water cooling device according to claim 2, characterized in that, The angle between the cross section of the steel coil placement seat and the horizontal plane is 30-45 degrees.

6. The steel coil water cooling device according to claim 2, characterized in that, The surface of the steel coil placement seat is provided with protrusions.

7. The steel coil water cooling device according to claim 2, characterized in that, The surface of the steel coil placement seat is wavy.

8. The steel coil water cooling device according to claim 1, characterized in that, The wastewater treatment tank is equipped with a conical filter screen, which is located below the outlet of the effluent pipe.

9. The steel coil water cooling device according to claim 1, characterized in that, The wastewater treatment pond is equipped with a sedimentation tank, and a sludge removal pipe is installed at the bottom of the sedimentation tank.

10. The steel coil water cooling device according to claim 1, characterized in that, The wastewater treatment tank is connected to the inlet pipe via a circulating pump.

Images