CN213968312U

CN213968312U - Rough and medium rolling roller cooling device

Info

Publication number: CN213968312U
Application number: CN202022416030.4U
Authority: CN
Inventors: 蔡永明; 冯友德; 刘满仓
Original assignee: Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Current assignee: Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-08-17
Anticipated expiration: 2030-10-27

Abstract

A rough and medium rolling roller cooling device belongs to the technical field of metallurgical production auxiliary equipment. The roller cooling device comprises a demisting mechanism and four groups of spraying mechanisms, wherein the demisting mechanism is arranged above the roller, each group of spraying mechanisms comprises a cooling header, a nozzle, a flow valve, a flow dividing pipe and a liquid inlet pipe, the cooling header is arranged at the feeding side or the discharging side of the roller and is arranged in parallel with the axial direction of the roller, the cooling header comprises at least two spraying pipes, the spraying pipes are connected with each other through the flow dividing pipes, the nozzles are arranged on the spraying pipes and are arranged along the axial direction of the spraying pipes in a parallel and staggered mode, and the flow valves are arranged between the flow dividing pipes and the liquid inlet pipes. The utility model discloses a cooling device has promoted the cooling effect of roll, makes roll surface quality keep good, and roll live time extension, product quality is not influenced, has avoided the roll to frequently change, and the cooling water obtains make full use of.

Description

Rough and medium rolling roller cooling device

Technical Field

The utility model belongs to the technical field of metallurgical production auxiliary assembly, concretely relates to thick well roll cooling device.

Background

In the rough and medium rolling production process, the roller generates great temperature gradient and thermal stress, so that fine network cracks are formed on the surface of the roller, and the periodicity of rolling load finally causes abrasion and stripping of the surface of the roller, so that the cooling of the roller is necessary.

In the prior art, the roller cooling is usually carried out by adopting water spray cooling, but the conventional water spray mode has the condition of large heat transfer difference in a global or local area, and the conventional water spray mode is over against the central line part of a nozzle, so that the cooling speed is maximum, and the heat extraction effect is best; instead of the edge portion where the nozzle cools the water straight, the cooling efficiency will be drastically reduced. In addition, when high-pressure or elastic water flow is sprayed on the roller, water splash can be caused, and a large amount of cooling water is wasted. Meanwhile, the roller is generally in a closed workshop during cooling, because the air flowability of the workshop is poor, cooling water is sprayed on the roller body to be heated and is easy to generate steam, and the steam is covered around the roller in a cage mode, so that the cooling speed of the roller can be delayed.

The roller is directly cooled by spraying through the water pipe with the transverse seam in the prior cooling device, the roller rotates during production, cooling water cannot fully cool the surface of the roller, a good cooling effect cannot be achieved, the roller is not cooled sufficiently, the roller is prone to cracking and other defects, the roller is replaced frequently, and a large amount of water resources are wasted.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved is as follows: to the technical problem, the utility model provides a roll cooling device in thick, the device has promoted the cooling effect of roll, makes roll surface quality keep good, and roll live time extension, product quality do not receive the influence, has avoided the roll to frequently change, and the cooling water obtains make full use of.

The technical scheme is as follows: roll cooling device in thick, roll cooling device includes defogging mechanism and four groups spray mechanism, defogging mechanism locates the top of roll, every group sprays the mechanism and all includes cooling header, spout, flow valve, shunt tubes and feed liquor pipe, the cooling header is located the feed side or the discharge side of roll to with the axial direction parallel arrangement of roll, the cooling header includes two at least shower, the shower is through shunt tubes interconnect, the spout is located on the shower, and follow the axial direction parallel crisscross setting of shower, the flow valve is located the shunt tubes with between the feed liquor pipe.

Preferably, the defogging mechanism comprises a defogging fan and an exhaust pipeline, and the two ends of the exhaust pipeline are respectively connected with the defogging fan and the outer side of the rough and medium rolling area.

Preferably, the spray pipes are all arranged on the same cylindrical surface outside the roller.

Preferably, the roller cooling device further comprises a baffle, and the end of the baffle abuts against the roller.

Preferably, the spray holes are distributed from dense to sparse on the spray pipe from the center to two sides.

Has the advantages that: the utility model discloses a cooling device has solved the problem that exists among the prior art, has promoted the cooling effect of roll, makes roll surface quality keep good, and roll live time extension, product quality do not receive the influence, has avoided the roll to change frequently, and the cooling water obtains make full use of.

Be the cooling header through improving single water pipe to reform transform the horizontal seam on the shower into alternately arranged's spout, can fully dash the cooling water to the roll surface, promoted the cooling effect of roll.

Through the setting of defogging mechanism, can effectively drive away the vapor that produces among the cooling process, prevent that vapor from covering on the roll surface, influence the cooling effect.

The four flow valves respectively arranged on the feeding and discharging sides of the upper and lower rollers can control the water outlet flow according to different cooling requirements, so that the cooling water flow can form laminar flow on the surface of the roller, the contact area with the roller is increased, and the reduction of cooling effect and water resource waste caused by splashing of the water flow is reduced.

The spray nozzles from the center to the two sides from dense to sparse on the spray pipes can effectively aim at the temperature gradient and the thermal stress of different positions of the roller, so that the cooling water is fully applied.

The setting of baffle can prevent that excessive cooling water from dripping on the rolled piece, has guaranteed that product quality is not influenced.

Drawings

FIG. 1 is a schematic view showing the structure of a cooling apparatus for a rough and medium rolling roll in example 1;

FIG. 2 is a schematic structural view of a shower pipe;

FIG. 3 is a schematic view showing the structure of a cooling apparatus for a rough and medium rolling roll in embodiment 2;

the numerical references in the figures represent the following meanings: 1. demisting mechanism, demisting fan, exhaust pipe, spray mechanism, cooling header, spray pipe, spray nozzle, flow valve, flow divider, flow inlet pipe, roller, etc. 11, demisting fan, exhaust pipe, spray mechanism, spray pipe, 2, 21, cooling header, 211, spray pipe, spray nozzle, 23, flow valve, 24, flow divider, 25, liquid inlet pipe, roller, 3, baffle, 4.

Detailed Description

For a better understanding of the above technical solutions of the present invention, the following further description is made with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1 and 2, the roll cooling device for rough and medium rolling comprises a defogging mechanism 1 and four groups of spraying mechanisms 2, wherein the defogging mechanism 1 is arranged above a roll 3, each group of spraying mechanism 2 comprises a cooling header 21, a nozzle 22, a flow valve 23, a shunt pipe 24 and a liquid inlet pipe 25, the four groups of cooling headers 21 are respectively arranged on the feeding side and the discharging side of the upper roll 3 and the lower roll 3 and are respectively arranged in parallel with the axial direction of the upper roll 3 and the lower roll 3, the cooling header 21 comprises two spraying pipes 211, the spraying pipes 211 are connected with each other through the shunt pipe 24, the nozzles 22 are arranged on the spraying pipes 211 and are arranged in parallel and staggered with each other along the axial direction of the spraying pipes 211, and the flow valves 23 are arranged between the shunt pipe 24 and the liquid inlet pipe 25. The demisting mechanism 1 comprises a demisting fan 11 and an exhaust pipeline 12, and the two ends of the exhaust pipeline 12 are respectively connected with the demisting fan 11 and the outer side of the rough and medium rolling area. The spray pipes 211 are all arranged on the same cylindrical surface outside the roller 3. The roller cooling device further comprises a baffle 4, and the end part of the baffle 4 is abutted to the roller 3. The spray openings 22 are distributed from dense to sparse on the spray pipe 211 from the center to two sides.

Through the setting of defogging mechanism, can effectively absorb the vapor that produces among the cooling process, prevent that vapor from covering on the roll surface, influence the cooling effect.

The cooling device of this embodiment has solved the problem that exists among the prior art, has promoted the cooling effect of roll, makes roll surface quality keep good, and roll live time extension, product quality is not influenced, has avoided the roll to change frequently, and the cooling water obtains make full use of.

Example 2

As shown in fig. 2 and 3, the roll cooling device for rough and medium rolling comprises a defogging mechanism 1 and four groups of spraying mechanisms 2, wherein the defogging mechanism 1 is arranged above the roll 3, each group of spraying mechanisms 2 comprises a cooling header 21, a nozzle 22, a flow valve 23, a shunt pipe 24 and a liquid inlet pipe 25, the four groups of cooling headers 21 are respectively arranged on the feeding side and the discharging side of the upper roll 3 and the lower roll 3 and are respectively arranged in parallel with the axial direction of the upper roll 3 and the lower roll 3, each group of cooling headers 21 comprises three spraying pipes 211, the spraying pipes 211 are connected with each other through the shunt pipes 24, the nozzles 22 are detachably arranged on the spraying pipes 211 and are arranged in parallel and staggered with each other along the axial direction of the spraying pipes 211, and the flow valves 23 are arranged between the shunt pipes 24 and the liquid inlet pipe 25. The defogging mechanism 1 is an exhaust fan. The spray pipes 211 are all arranged on the same cylindrical surface outside the roller 3. The spray openings 22 are distributed from dense to sparse on the spray pipe 211 from the center to two sides.

Be the cooling header through improving single water pipe to reform transform the horizontal seam on the shower into alternately arranged's spout, can fully dash the cooling water to the roll surface, promoted the cooling effect of roll. Meanwhile, the detachable nozzle is convenient for replacing the blocked or damaged nozzle part in time, so that the service life of the device is prolonged.

Through exhaust fan's setting, can effectively blow off the vapor that produces among the cooling process, prevent that vapor from covering on the roll surface, influence the cooling effect.

Claims

1. The rough and medium rolling roller cooling device is characterized by comprising a demisting mechanism (1) and four groups of spraying mechanisms (2), the demisting mechanism (1) is arranged above the roller (3), each group of spraying mechanisms (2) comprises a cooling header (21), a nozzle (22), a flow valve (23), a shunt pipe (24) and a liquid inlet pipe (25), the cooling header (21) is arranged on the feed side or the discharge side of the roller (3), and arranged parallel to the axial direction of the roll (3), said cooling manifold (21) comprising at least two shower pipes (211), the spray pipes (211) are connected with each other through a shunt pipe (24), the nozzles (22) are arranged on the spray pipes (211), and the flow valves (23) are arranged between the flow dividing pipes (24) and the liquid inlet pipes (25) in parallel and in a staggered manner along the axial direction of the spraying pipes (211).

2. The rough medium rolling roller cooling device according to claim 1, wherein the demisting mechanism (1) comprises a demisting fan (11) and an exhaust pipeline (12), and two ends of the exhaust pipeline (12) are respectively connected with the demisting fan (11) and the outer side of the rough medium rolling area.

3. Rough and medium rolling roller cooling device according to claim 1, characterized in that the spray pipes (211) are all arranged on the same cylindrical surface outside the roller (3).

4. Rough medium rolling roller cooling device according to claim 1, characterized in that it further comprises a baffle (4), the ends of the baffle (4) being against the roller (3).

5. Rough and medium rolling roller cooling device according to claim 1, characterized in that the nozzles (22) present a dense-to-sparse distribution from the center to both sides on the shower pipe (211).