CN218425490U

CN218425490U - Cast roll cooling device

Info

Publication number: CN218425490U
Application number: CN202222482076.5U
Authority: CN
Inventors: 齐广平; 周子沐; 郭宗臻; 窦敏时; 周永昌; 张莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-02-03
Anticipated expiration: 2032-09-20

Abstract

The utility model provides a cast roll cooling device, including the mounting bracket, the upper cast roll, the lower cast roll, a pedestal, drive device and water pitcher, be equipped with the delivery port on the water pitcher, be equipped with the mounting panel and be in the upper water storage box above the upper cast roll and be in the lower water storage box below the lower cast roll on the mounting bracket, upper water storage box and lower water storage box all are equipped with the nozzle, be equipped with the infusion pump on the mounting panel, the infusion pump is connected with feed liquor pipe and drain pipe, feed liquor pipe and delivery port are connected, the drain pipe is connected with upper water storage box or lower water storage box and is linked together through the connecting-line between upper water storage box and the lower water storage box, be equipped with the collecting box on the base, be equipped with the fluid-discharge tube on the collecting box, be equipped with the water-guiding pump on the water pitcher, the water-guiding pump is connected with aqueduct and drain pipe, the aqueduct is connected with the fluid-discharge tube, the drain pipe is connected with the water inlet that sets up on the water pitcher; the device not only realizes the uniform cooling of the casting roller, but also can recycle the cooling water generated in the cooling process, and has high use value.

Description

Cast roll cooling device

Technical Field

The utility model relates to a cast roll cooling technology field particularly, relates to a cast roll cooling device.

Background

The ingot-free rolling refers to a process of directly rolling liquid metal into a semi-finished product or a finished product, and is called continuous casting and rolling for short. In this process, the rolls act mainly as crystallizers for the liquid metal and also as rolling rolls. It differs from the continuous casting-rolling process, which is a process in which the metal solidifies in the crystallizer of a continuous casting machine and is deformed in a rolling mill. When the casting roll in the casting and rolling machine is subjected to hot rolling, a large amount of heat is generated by the casting roll, so that the solidification quality of a solution is reduced, the efficiency of continuous casting and rolling is reduced, the abrasion of the roll is reduced after the casting roll is cooled, the surface roughness of the roll is prevented, and the hot convexity of the roll is inhibited.

The cooling mode of the casting roller which is commonly used at present is water cooling, the cooling mode adopts a water inlet pipe and a water outlet pipe to carry out integral cooling on the casting roller, the pressure of domestic common cooling water is 1.0MPa and 2.3MPa, 1.0MPa is commonly used in Europe and America, and 2.3MPa is commonly used in Japan, but 1.0MPa (requiring the outlet pressure of a water pump to be 1.2 MPa) is also adopted for the cooling water of the roller in Japan after 1580mm hot rolling of Bao steel, the technical problem of uneven cooling caused by uneven surface temperature distribution of the casting roller is difficult to solve by the structure of the traditional cooling mode, and the cooling water is inconvenient to collect and has large waste.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of providing in the above-mentioned background art, then provided a cast roll cooling device.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a casting roll cooling device, the mounting bracket comprises a mounting bracket, go up the casting roll, lower casting roll, a pedestal, drive arrangement and water pitcher, be equipped with the delivery port on the water pitcher, be equipped with the mounting panel on the mounting bracket and be in the last water storage box of casting roll top and be in the lower water storage box of casting roll below down, it all is equipped with a plurality of nozzles to go up water storage box and lower water storage box, be equipped with the priming pump on the mounting panel, the priming pump is connected with feed liquor pipe and drain pipe, the feed liquor pipe is connected with the delivery port, the drain pipe is connected with last water storage box or lower water storage box and is linked together through the continuous liquid pipe between last water storage box and the lower water storage box, be equipped with the collecting box on the base, be equipped with the fluid-discharge tube on the collecting box, be equipped with the water guide pump on the water pitcher, the water guide pump is connected with aqueduct and drain pipe, the aqueduct is connected, the drain pipe is connected with the water inlet that sets up on the water pitcher.

Further, the spray nozzles are arranged in the radial direction of the upper and lower casting rolls to achieve the overall cooling of the upper and lower casting rolls.

Furthermore, the nozzles are distributed on the upper water storage tank and the lower water storage tank in a way that the middle is dense and the two sides are sparse and the nozzles on each row of water collecting pipes are arranged in a staggered way, so that the non-uniformity of the impact force of the nozzles can be further eliminated.

Furthermore, the nozzle is an elliptical nozzle, the ratio b/a of the long axis to the short axis of the elliptical nozzle is =1.4-1.6, and the elliptical nozzle spray head is uniform and efficient in spray cooling.

Furthermore, a drain valve is installed on the drain pipe, so that the cooling liquid in the collecting box can not flow out from the drain pipe after the water guide pipe is disconnected from the drain pipe, and the collecting box can independently collect the cooling water by arranging the drain valve.

Furthermore, a filter screen for filtering the cooling water is arranged in the collecting box to avoid the problem that the collecting box is blocked in the drainage process.

Further, be equipped with the steam recovery mechanism on the mounting panel, the steam recovery mechanism includes the aspirator pump, the breathing pipe, the case of breathing in, the induction port, blast pipe and condenser, the aspirator pump is installed on the mounting panel and is connected with breathing pipe and blast pipe, the breathing pipe is connected with the case of breathing in that is in the mounting panel below, be equipped with a plurality of induction ports that are used for absorbing steam on the case of breathing in, the blast pipe is connected with the condenser in order to realize the steam condensation for liquid, this design has realized producing the processing of a large amount of steam to casting roll cooling process, not only the cooling effect has been improved, and the staff can collect the processing to the liquid that produces, environmental protection effect is good.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a water storage box and lower water storage box on the design of roll top and the roll below of casting down at last casting, go up water storage box and water storage box down and carry out comprehensive even cooling to the roll of casting on respectively with the roll of casting down in the spray cooling process, and because the design of collecting box, the cooling water that produces in the cooling process is collected in directly falling into the collecting box, and the cooling water after the collection carries out the reutilization in leading-in water pitcher again through the water guide pump.

2. The utility model discloses well nozzle is in the middle of the distribution on last water storage box and the lower water storage box is close both sides and dredges, and the roll middle part of casting is heated the temperature and is higher, and both sides temperature is then lower, and the design can have corresponding cools off the roll of casting like this, and the nozzle on each row water-collecting pipe staggers and arranges, can further eliminate the inhomogeneity of nozzle impact force like this, has improved the cooling effect of roll of casting greatly.

3. The utility model discloses a steam that produces in the steam recovery mechanism is designed to casting roll cooling process is handled, has not only improved the cooling effect, has avoided the waste of a large amount of steam moreover.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the nozzle installation;

FIG. 3 is a schematic view of the installation of the vapor recovery mechanism;

wherein: 1. a mounting frame; 11. casting a roller; 12. casting a roller; 13. a base; 14. a drive device; 15. a water tank; 151. a water outlet; 152. a water inlet; 2. mounting a plate; 3. a liquid injection pump; 31. a liquid inlet pipe; 32. a liquid outlet pipe; 4. an upper water storage tank; 41. a lower water storage tank; 42. a liquid connecting pipe; 43. a nozzle; 5. a collection box; 51. a liquid discharge pipe; 52. a drain valve; 53. a filter screen; 6. a water guide pump; 61. a water conduit; 62. a drain pipe; 7. a getter pump; 71. an air intake duct; 72. a suction box; 73. an air suction port; 74. an exhaust pipe; 75. a condenser.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The invention will be further explained with reference to the accompanying drawings and examples:

as shown in fig. 1 and 2, a casting roll cooling device includes a mounting frame 1, an upper casting roll 11, a lower casting roll 12, a base 13, a driving device 14 and a water tank 15, wherein the water tank 15 is provided with a water outlet 151, the mounting frame 1 is provided with a mounting plate 2, an upper water storage tank 4 above the upper casting roll 11 and a lower water storage tank 41 below the lower casting roll 12, the upper water storage tank 4 and the lower water storage tank 41 are both provided with a plurality of nozzles 43, the mounting plate 2 is provided with a liquid injection pump 3, the liquid injection pump 3 is connected with a liquid inlet pipe 31 and a liquid outlet pipe 32, the liquid inlet pipe 31 is connected with the water outlet 151, the liquid outlet pipe 32 is connected with the upper water storage tank 4 or the lower water storage tank 41 and communicated with the upper water storage tank 4 and the lower water storage tank 41 through a liquid connecting pipe 42 to enable the liquid injection pump 3 to inject cooling water in the water tank into the upper water storage tank 4 and the lower water storage tank 41, the base 13 is provided with a collecting tank 5 for collecting water drops on the water tank during a casting roll cooling process, the collecting tank 5 is provided with a water discharging pipe 51, the water tank 15 is provided with a water guiding pump 6, the water guiding pump 6 and a water guiding pipe 61 and a water guiding pipe 62, and a water discharging pipe 152 are connected with a water collecting tank 5 to achieve water collecting water tank 5 connected with a water collecting water tank 15.

Considering the heated state of the roll, the nozzles 43 are arranged along the radial direction of the upper casting roll 11 and the lower casting roll 12 to realize the overall cooling of the upper casting roll 11 and the lower casting roll 12, the nozzles 43 are distributed on the upper water storage tank 4 and the lower water storage tank 41 with dense middle and sparse sides, and the nozzles 43 on the water collecting pipes are arranged in a staggered manner, so that the non-uniformity of the impact force of the nozzles 43 can be further eliminated, it is worth explaining that the nozzles 43 in the design adopt the elliptical nozzles 43, and the spray cooling of the elliptical nozzles 43 is uniform and efficient, and the experiment shows that: the ratio b/a =1.4-1.6 of the major axis and the minor axis of the elliptical nozzle 43 is preferable.

Wherein, the drain pipe 51 is provided with a drain valve 52, so that the cooling liquid in the collecting box 5 can not flow out from the drain pipe 51 after the water conduit 61 is disconnected with the drain pipe 51, and the independent collection of the cooling water by the collecting box 5 can be realized by arranging the drain valve 52; of course, in order to avoid the blocking problem of the collecting tank 5 during the drainage process, a filter screen 53 for filtering the cooling water is arranged in the collecting tank 5, and the liquid falling from the casting roll is firstly filtered by the filter screen 53 and then collected by the collecting tank 5.

The casting roller in a high-temperature state can generate a large amount of steam after being contacted with cooling water in the spray cooling process, and the generated steam has two defects, one is that the high-temperature steam is not timely far away from the casting roller, so that the cooling effect of the casting roller is influenced; secondly, a large amount of high-temperature steam is not recovered in time, which does not accord with the environmental protection concept and generates a large amount of waste; the steam recovery mechanism is designed from the two angles, as shown in fig. 3, the steam recovery mechanism comprises a suction pump 7, a suction pipe 71, a suction box 72, a suction port 73, an exhaust pipe 74 and a condenser 75, the suction pump 7 is mounted on the mounting plate 2 and connected with the suction pipe 71 and the exhaust pipe 74, the suction pipe 71 is connected with the suction box 72 below the mounting plate 2, the suction box 72 is provided with a plurality of suction ports 73 used for absorbing steam, the suction ports 73 are located above the upper casting roll 11, the exhaust pipe 74 is connected with the condenser 75 to condense the steam into liquid, and a worker can collect and process the generated liquid.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description in the above embodiments and the specification is only for illustrating the principles of the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A casting roll cooling device comprises a mounting frame (1), an upper casting roll (11), a lower casting roll (12), a base (13), a driving device (14) and a water tank (15), wherein a water outlet (151) is formed in the water tank (15), the casting roll cooling device is characterized in that a mounting plate (2), an upper water storage tank (4) positioned above the upper casting roll (11) and a lower water storage tank (41) positioned below the lower casting roll (12) are arranged on the mounting frame (1), a plurality of nozzles (43) are arranged on the upper water storage tank (4) and the lower water storage tank (41), a liquid injection pump (3) is arranged on the mounting plate (2), the liquid injection pump (3) is connected with a liquid inlet pipe (31) and a liquid outlet pipe (32), the liquid inlet pipe (31) is connected with the water outlet (151), the liquid outlet pipe (32) is connected with the upper water storage tank (4) or the lower water storage tank (41), the upper water storage tank (4) is communicated with the lower water storage tank (41) through a liquid connecting pipe (42), a collecting box (5) is arranged on the base (13), a water guide pipe (15) is connected with a water guide pump (6), and a liquid discharge pipe (61), the water outlet pipe (62) is connected with a water inlet (152) arranged on the water tank (15).

2. The casting roll cooling device according to claim 1, characterized in that the nozzles (43) are distributed on the upper water storage tank (4) and the lower water storage tank (41) in a manner that the nozzles (43) are dense in the middle and sparse in two sides and are arranged in a staggered manner on each row of water collecting pipes.

3. The cooling device for the casting roll according to claim 1, characterized in that the nozzle (43) is an elliptical nozzle (43), and the ratio b/a of the long axis and the short axis of the elliptical nozzle (43) is =1.4-1.6.

4. A cooling device for a casting roll according to claim 1, characterized in that a drain valve (52) is mounted on the drain pipe (51).

5. A cooling device for a casting roll according to claim 1, characterized in that a filtering screen (53) is provided in the collecting box (5).

6. The cooling device for the casting roller according to claim 1, wherein a steam recovery mechanism is arranged on the mounting plate (2), the steam recovery mechanism comprises a suction pump (7), a suction pipe (71), a suction box (72), a suction port (73), an exhaust pipe (74) and a condenser (75), the suction pump (7) is arranged on the mounting plate (2) and is connected with the suction pipe (71) and the exhaust pipe (74), the suction pipe (71) is connected with the suction box (72) below the mounting plate (2), the suction box (72) is provided with a plurality of suction ports (73) for absorbing steam, and the exhaust pipe (74) is connected with the condenser (75).