Hot-rolled coiled plate laminar cooling device

Abstract

The utility model discloses a laminar cooling device for a hot-rolled coiled plate, and relates to the technical field of hot-rolled coiled plates. The hot-rolled coil cooling device comprises a lifting top, a lower cooling base, an upper cooling base and a pressurizing spray head, and a supporting block is fixedly installed on one side of the lower cooling base. A pressurizing liquid pump is arranged to pressurize cooling liquid which is conveyed to the pressurizing spray head in an upper cooling box and cools a hot-rolled coil; and a large amount of water vapor generated after the cooling liquid makes contact with the hot-rolled steel plate is shielded through the liquid collecting barrier, the water vapor flows to the liquid collecting hopper along the inner wall of the heat-resistant inner container and enters the lower cooling base, and therefore the cooling effect is improved. The liquid entering the lower cooling seat is refrigerated by the refrigerating assembly and conveyed to the atomizing spray head through the second booster liquid pump, and the cooled cooling liquid is sprayed out through the atomizing spray head, so that the temperature of the working environment can be reduced.

Description

Technical Field

[0001] The utility model belongs to the field of hot-rolled coil plates, and specifically relates to a laminar flow cooling device for hot-rolled coil plates. Background Art

[0002] Hot-rolled coil plates use slab as raw material, and are made into strip steel by rough rolling mill unit and finish rolling mill unit after heating. The hot strip steel coming out from the last finishing mill needs to go through laminar flow cooling.

[0003] When cooling, the falling water column must have a certain impact force to break through the water layer on the steel plate and the steam film generated on the steel plate surface, so as to improve the cooling efficiency. The nozzles of the existing laminar flow cooling devices for hot-rolled coil plates cannot adjust the impact force of the falling water column, and due to the high temperature generated by water vapor, it will increase the temperature of the working environment. In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0004] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide a laminar flow cooling device for hot-rolled coil plates.

[0005] To solve the above technical problem, the basic concept of the technical solution adopted by the present utility model is:

[0006] A laminar flow cooling device for hot-rolled coil plates includes a lifting top, a lower cooling seat, an upper cooling seat and a boosting nozzle. One side of the lower cooling seat is fixedly installed with a support block, a support rod is fixed on the top of the support block, an electric lifting column is arranged inside the support rod, the telescopic end of the electric lifting column is fixed to the support block at the bottom of the driving block. One side of the driving block is fixedly installed with a lifting top, the top of the lifting top is fixed with an upper cooling seat. The front ends of the upper cooling seat and the lower cooling seat are both connected with a liquid supplement solenoid valve through a pipeline, and refrigeration components are fixed on the tops of the upper cooling seat and the lower cooling seat;

[0007] A first boosting liquid pump is fixed inside the lifting top, one end of the first boosting liquid pump is connected with a rotary joint through an infusion pipe, the rotary joint is installed on the top of a rotating part, the bottom of the rotary joint is communicated with an infusion cavity inside the rotating part, and a plurality of connectors are communicated at the bottom of the infusion cavity. The bottom of each connector is communicated with a boosting nozzle through a telescopic pipe;

[0008] A hydraulic detection valve is installed in the middle of the infusion pipe, the other end of the first boosting liquid pump penetrates through the upper cooling seat through a negative pressure pipe, and a screen cover is sleeved outside the end of the negative pressure pipe.

[0009] Optionally, temperature sensors and submersible level sensors are installed at the front ends of the upper cooling seat and the lower cooling seat respectively, and the detection ends of the temperature sensors and the submersible level sensors penetrate into the upper cooling seat and the lower cooling seat respectively.

[0010] Optionally, the refrigeration assembly includes a heat conduction rod, a thermoelectric cooler, a heat sink and a cooling fan. The heat conduction rod is fixed to the upper cooling seat or the lower cooling seat by screws. The upper end of the heat conduction rod is in contact with the refrigerating surface of the thermoelectric cooler through thermal conductive grease. The heating end of the thermoelectric cooler is fixed to the heat sink through thermal conductive grease, and a cooling fan is fixed to the upper end of the heat sink.

[0011] Optionally, a lining ring for installing the rotating member is fixed to the bottom of the lifting jack. Ball bearings are provided on the contact surface between the lining ring and the rotating member. A transmission gear ring is fixedly sleeved outside the rotating member. The side wall of the transmission gear ring meshes with the side wall of the driving gear, and the driving gear is fixedly sleeved on the output shaft of the self-locking motor. The self-locking motor is fixedly installed inside the lifting jack.

[0012] Optionally, rotating rods are provided on both sides of each pressure boosting nozzle, and each rotating rod is connected through the middle of the connecting rod. The connecting rod is fixedly installed at the bottom of the rotating member, and a positioning bolt for fixing the use angle of the rotating rod is threaded at the front end of the connecting rod. The back of the positioning bolt abuts against the surface of the rotating rod.

[0013] Optionally, two liquid collecting barriers are symmetrically fixed to the upper end of the lower cooling seat. Heat-resistant inner liners are fixed to the inner surfaces of the two liquid collecting barriers. The surface of the heat-resistant inner liner is a smooth white surface. A liquid collecting hopper is provided below the interior of the heat-resistant inner liner. The side end of the liquid collecting hopper abuts against the side wall of the heat-resistant inner liner. The bottom of the liquid collecting hopper penetrates into the interior of the lower cooling seat. A one-way valve is provided in the middle of the liquid collecting hopper.

[0014] Optionally, a second pressure boosting liquid pump is fixed inside the support block. The negative pressure end of the second pressure boosting liquid pump penetrates into the interior of the lower cooling seat through a conduit, and the liquid outlet end of the second pressure boosting liquid pump is connected to a liquid distribution pipe. The upper end of the liquid distribution pipe is communicated with two atomizing nozzles through two telescopic pipes. The two atomizing nozzles are respectively fixed on both sides of the lifting jack.

[0015] After adopting the above technical solutions, the present utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the present utility model does not necessarily need to achieve all the advantages described below at the same time:

[0016] The utility model plays a role in pressurizing the coolant that is transported from the upper cooling tank to the pressurizing spray head to cool the hot-rolled coil plate, so that the coolant can impact the surface of the hot-rolled coil plate after pressurization to disperse the steam film, thereby improving the cooling effect. And since a large amount of water vapor generated after the coolant contacts the hot-rolled steel plate will be blocked by the liquid collection barrier, these water vapor will flow along the inner wall of the heat-resistant inner liner into the liquid collection hopper and enter the interior of the lower cooling seat. The liquid entering the interior of the lower cooling seat will be refrigerated by the refrigeration component and then transported to the atomizing spray head through the second pressurizing liquid pump, and the cooled coolant will be sprayed out through the atomizing spray head, which can help reduce the working environment temperature.

[0017] The following further describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the attached

[0019] In the figures:

[0020] Figure 1 is the main view sectional structure schematic diagram of the present utility model;

[0021] Figure 2 is Figure 1 the schematic diagram of the structure of part A in

[0022] Figure 3 is Figure 1 the schematic diagram of the structure of part B in

[0023] Figure 4 is Figure 1 the schematic diagram of the structure of part C in

[0024] Figure 5 is Figure 1 the schematic diagram of the structure of part D in

[0025] Figure 6 is Figure 1 the schematic diagram of the structure of part E in

[0026] Figure 7 is Figure 1 the schematic diagram of the structure of part F in

[0027] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0028] 1. Lower cooling seat; 2. Support block; 3. Support rod; 4. Electric lifting column; 5. Driving block; 6. Support block; 7. Lifting top; 8. Upper cooling seat; 9. Liquid replenishing solenoid valve; 10. First booster pump; 11. Infusion tube; 12. Rotary joint; 13. Rotating part; 14. Connector; 15. Boosting nozzle; 16. Hydraulic test valve; 17. Negative pressure tube; 18. Screen cover; 19. Temperature sensor; 20. Submersible liquid level sensor; 21. Cooling rod; 22. Semiconductor cooling plate; 23. Heat sink; 24. Cooling fan; 25. Liner ring; 26. Ball bearing; 27. Transmission gear ring; 28. Driving gear; 29. ​​Self-locking motor; 30. Rotating rod; 31. Connecting rod; 32. Positioning bolt; 33. Liquid collecting barrier; 34. Heat-resistant inner tank; 35. Liquid collecting bucket; 36. One-way valve; 37. Second boosting liquid pump; 38. Conduit; 39. Liquid dispensing tube; 40. Atomizing nozzle.

[0029] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] The utility model is now described in further detail with reference to the accompanying drawings.

[0031] See also Figures 1 to 7 The utility model provides a technical solution: a laminar cooling device for hot-rolled coils, comprising a lifting top 7, a cooling plate, a lower cooling seat 1, an upper cooling seat 8 and a booster nozzle 15, a support block 2 is fixedly installed on one side of the lower cooling seat 1, a support rod 3 is fixed on the top of the support block 2, an electric lifting column 4 is arranged inside the support rod 3, the telescopic end of the electric lifting column 4 is fixed to a support block 6 at the bottom of a driving block 5, a lifting top 7 is fixedly installed on one side of the driving block 5, an upper cooling seat 8 is fixed on the top of the lifting top 7, a liquid replenishing solenoid valve 9 is connected to the front end of the upper cooling seat 8 and the lower cooling seat 1 through a pipeline, and a refrigeration component is fixed on the top of the upper cooling seat 8 and the lower cooling seat 1;

[0032] A first booster liquid pump 10 is fixed inside the lifting top 7, one end of the first booster liquid pump 10 is connected to a rotary joint 12 through an infusion tube 11, the rotary joint 12 is mounted on the top of a rotating member 13, the bottom of the rotary joint 12 is connected to an infusion cavity inside the rotating member 13, a plurality of connectors 14 are connected to the bottom of the infusion cavity, and the bottom of each connector 14 is connected to a booster nozzle 15 through a telescopic tube;

[0033] A hydraulic detection valve 16 is installed in the middle of the infusion tube 11. The other end of the first booster liquid pump 10 penetrates through the negative pressure tube 17 into the interior of the upper cooling seat 8. A screen cover 18 is provided outside the end of the negative pressure tube 17. Considering that the falling water column during cooling must have a certain impact force to break through the water layer on the steel plate and the steam film generated on the surface of the steel plate in order to improve the cooling efficiency, the nozzles of the existing hot-rolled coil laminar flow cooling device cannot adjust the impact force of the falling water column, and due to the high temperature generated by the water vapor, the working environment temperature will increase. The utility model plays a role in boosting the coolant transported to the booster nozzle 15 in the upper cooling tank for cooling the hot-rolled coil by setting a booster liquid pump, so that the coolant can break up the steam film by impacting the surface of the hot-rolled coil after boosting, thereby improving the cooling effect. And a large amount of water vapor generated after the coolant contacts the hot-rolled steel plate will be blocked by the liquid collection barrier 33. These water vapor will flow along the inner wall of the heat-resistant inner liner 34 into the liquid collection hopper 35 and enter the interior of the lower cooling seat 1. The liquid entering the interior of the lower cooling seat 1 will be cooled by the refrigeration component and then transported to the atomizing nozzle 40 through the second booster liquid pump 37. The cooled coolant is sprayed out through the atomizing nozzle 40, which can help reduce the working environment temperature.

[0034] Among them, temperature sensors 19 and submersible liquid level sensors 20 are installed at the front ends of the upper cooling seat 8 and the lower cooling seat 1 respectively, and the detection ends of the temperature sensors 19 and the submersible liquid level sensors 20 penetrate into the interiors of the upper cooling seat 8 and the lower cooling seat 1 respectively. By setting the submersible liquid level sensor 20, the liquid level height of the coolant inside the lower cooling seat 1 and the upper cooling seat 8 is monitored. When the coolant is lower than the daily set threshold, it will be replenished through the replenishing solenoid valve 9. By setting the temperature sensor 19, the temperature of the coolant is monitored.

[0035] Among them, the refrigeration component includes a heat conduction rod 21, a semiconductor refrigeration sheet 22, a heat sink 23 and a cooling fan 24. The heat conduction rod 21 is fixed to the upper cooling seat 8 or the lower cooling seat 1 by screws. The upper end of the heat conduction rod 21 is in contact with the refrigerating surface of the semiconductor refrigeration sheet 22 through thermal conductive silicone grease. The heating end of the semiconductor refrigeration sheet 22 is fixed to the heat sink 23 through thermal conductive silicone grease, and a cooling fan 24 is fixed to the upper end of the heat sink 23. By setting the refrigeration component, the temperature of the coolant inside the upper cooling seat 8 and the lower cooling seat 1 is monitored. During refrigeration, after the semiconductor is energized, the refrigerating surface will refrigerate and transfer the temperature to the heat conduction rod 21, and then the heat conduction rod 21 is used to cool the coolant.

[0036] Among them, a lining ring 25 for installing the rotating member 13 is fixed at the bottom of the lifting top 7. Ball bearings 26 are provided on the contact surface between the lining ring 25 and the rotating member 13. A transmission gear ring 27 is fixedly sleeved outside the rotating member 13. The side wall of the transmission gear ring 27 meshes with the side wall of the driving gear 28, and the driving gear 28 is fixedly sleeved on the output shaft of the self-locking motor 29. The self-locking motor 29 is fixedly installed inside the lifting top 7. By setting the ball bearings, the friction force between the contact surfaces of the rotating member 13 and the lining ring 25 is reduced. When the self-locking motor 29 works, it will drive the driving gear 28 to rotate through the rotation of its output shaft. During the rotation of the driving gear 28, the gear ring will be driven to rotate, so that the rotating member 13 rotates. When the rotating member 13 rotates, the spraying positions of the water columns sprayed by each pressure increasing nozzle 15 will change, so that the sprayed water columns can contact the hot-rolled steel plate at multiple positions, thus ensuring the cooling effect.

[0037] Among them, rotating rods 30 are provided on both sides of each pressure increasing nozzle 15, and each rotating rod 30 is connected through the middle of the connecting rod 31. The connecting rod 31 is fixedly installed at the bottom of the rotating member 13, and a positioning bolt 32 for fixing the use angle of the rotating rod 30 is threaded at the front end of the connecting rod 31. The back of the positioning bolt 32 abuts against the surface of the rotating rod 30. By setting the use angle of each pressure increasing nozzle 15, the rotating rod 30 can be rotated by loosening the positioning bolt 32 for adjustment, which facilitates the user to individually adjust the use angle of each pressure increasing nozzle 15 according to the cooling needs, thus ensuring the spraying area. And when there are differences in the widths of the conveyed hot-rolled steel plates, the use angles of each pressure increasing nozzle 15 will be adjusted by rotating the rotating rod 30, so as to change the spraying range and avoid wasting water resources.

[0038] Among them, two liquid collecting barriers 33 are symmetrically fixed at the upper end of the lower cooling seat 1. Heat-resistant inner linings 34 are fixed on the inner surfaces of the two liquid collecting barriers 33, and the surface of the heat-resistant inner lining 34 is a smooth white surface. A liquid collecting hopper 35 is provided below the heat-resistant inner lining 34. The side end of the liquid collecting hopper 35 abuts against the side wall of the heat-resistant inner lining 34. The bottom of the liquid collecting hopper 35 penetrates to the inside of the lower cooling seat 1. A one-way valve 36 is provided in the middle of the liquid collecting hopper 35. By setting the liquid collecting barrier 33, the water vapor generated after the coolant contacts the hot-rolled steel plate is collected. On the one hand, it avoids the rise of the working environment caused by the escape of high-temperature water vapor. On the other hand, these water vapors can be collected. After being collected in the lower cooling seat 1 and cooled by the refrigeration component, they will be transported to the atomizing nozzle 40 by the second booster liquid pump 37 to cool the ambient temperature.

[0039] Among them, a second booster liquid pump 37 is fixed inside the support block 2. The negative pressure end of the second booster liquid pump 37 penetrates through the catheter 38 into the interior of the lower cooling base 1, and the liquid outlet end of the second booster liquid pump 37 is connected to the liquid distribution pipe 39. The upper end of the liquid distribution pipe 39 is communicated with two atomizing nozzles 40 through two telescopic pipes. The two atomizing nozzles 40 are respectively fixed on both sides of the lifting top 7. By setting the atomizing nozzles 40, the cooling liquid conveyed by the second booster liquid pump 37 is atomized, so that the atomized cooling liquid can reduce the relatively high ambient temperature.

[0040] The present invention is not limited to the above embodiments. Any person should know that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A laminar flow cooling device for hot rolled coil plates, comprising a lifting top (7), a lower cooling seat (1), an upper cooling seat (8) and a pressurizing spray head (15), characterized in that, One side of the lower cooling seat (1) is fixedly provided with a support block (2). A support rod (3) is fixed on the top of the support block (2). An electric lifting column (4) is arranged inside the support rod (3). The telescopic end of the electric lifting column (4) is fixed to a support block (6) at the bottom of the driving block (5). One side of the driving block (5) is fixedly provided with a lifting top (7). The top of the lifting top (7) is fixed with an upper cooling seat (8). Liquid filling solenoid valves (9) are communicated through pipelines at the front ends of the upper cooling seat (8) and the lower cooling seat (1). Refrigeration components are fixed on the tops of the upper cooling seat (8) and the lower cooling seat (1). A first booster liquid pump (10) is fixed inside the lifting top (7). One end of the first booster liquid pump (10) is communicated with a rotary joint (12) through an infusion pipe (11). The rotary joint (12) is installed on the top of a rotating member (13). The bottom of the rotary joint (12) is communicated with an infusion cavity inside the rotating member (13). A plurality of connecting heads (14) are communicated at the bottom of the infusion cavity. The bottom of each connecting head (14) is communicated with a booster spray head (15) through a telescopic pipe. A hydraulic detection valve (16) is installed in the middle of the infusion pipe (11). The other end of the first booster liquid pump (10) penetrates through the upper cooling seat (8) through a negative pressure pipe (17). A screen cover (18) is sleeved outside the end of the negative pressure pipe (17).

2. The laminar cooling device for hot-rolled coil plates according to claim 1, characterized in that, Temperature sensors (19) and submersible liquid level sensors (20) are installed at the front ends of the upper cooling seat (8) and the lower cooling seat (1). The detection ends of the temperature sensors (19) and the submersible liquid level sensors (20) respectively penetrate into the upper cooling seat (8) and the lower cooling seat (1).

3. The laminar cooling device for hot-rolled coil plates according to claim 1, characterized in that, The refrigeration component includes a heat conduction rod (21), a semiconductor refrigeration sheet (22), a heat sink (23) and a cooling fan (24). The heat conduction rod (21) is fixed to the upper cooling seat (8) or the lower cooling seat (1) by screws. The refrigerating surface of the semiconductor refrigeration sheet (22) is in contact with the upper end of the heat conduction rod (21) through heat conductive silicone grease. The heating end of the semiconductor refrigeration sheet (22) is fixed to the heat sink (23) through heat conductive silicone grease. A cooling fan (24) is fixed to the upper end of the heat sink (23).

4. The laminar cooling device for hot-rolled coil plates according to claim 1, characterized in that, The bottom of the lifting top (7) is fixed with a lining ring (25) for installing the rotating member (13). Ball beads (26) are arranged on the contact surface between the lining ring (25) and the rotating member (13). A transmission gear ring (27) is fixedly sleeved outside the rotating member (13). The side wall of the transmission gear ring (27) is meshed with the side wall of a driving gear (28). The driving gear (28) is fixedly sleeved on the output shaft of a self-locking motor (29). The self-locking motor (29) is fixedly installed inside the lifting top (7).

5. The laminar cooling device for hot-rolled coil sheets according to claim 1, characterized in that, On both sides of each pressure boosting nozzle (15), there are rotating rods (30), and each rotating rod (30) is connected through the middle of a connecting rod (31). The connecting rod (31) is fixedly installed at the bottom of a rotating member (13), and a positioning bolt (32) for fixing the use angle of the rotating rod (30) is threaded at the front end of the connecting rod (31). The back of the positioning bolt (32) abuts against the surface of the rotating rod (30).

6. The laminar cooling device for hot-rolled coil sheets according to claim 1, characterized in that, On the upper end of the lower cooling seat (1), two liquid collecting barriers (33) are symmetrically fixed. On the inner surfaces of the two liquid collecting barriers (33), heat-resistant inner liners (34) are fixed, and the surface of the heat-resistant inner liner (34) is a smooth white surface. Below the interior of the heat-resistant inner liner (34), there is a liquid collecting hopper (35). The side end of the liquid collecting hopper (35) abuts against the side wall of the heat-resistant inner liner (34). The bottom of the liquid collecting hopper (35) penetrates to the interior of the lower cooling seat (1). A one-way valve (36) is provided in the middle of the liquid collecting hopper (35).

7. The laminar flow cooling device for hot rolled coil plates according to claim 1, characterized in that, A second pressure boosting liquid pump (37) is fixed inside the support block (2). The negative pressure end of the second pressure boosting liquid pump (37) penetrates to the interior of the lower cooling seat (1) through a conduit (38), and the liquid outlet end of the second pressure boosting liquid pump (37) is connected to a liquid distribution pipe (39). The upper end of the liquid distribution pipe (39) is communicated with two atomizing nozzles (40) through two telescopic pipes. The two atomizing nozzles (40) are respectively fixed on both sides of the lifting top (7).

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