CN212370836U

CN212370836U - Cooling device for hot rolling mill

Info

Publication number: CN212370836U
Application number: CN202020750866.5U
Authority: CN
Inventors: 陆建平
Original assignee: Wuxi Yelong Machinery Co ltd
Current assignee: Wuxi Yelong Machinery Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2021-01-19
Anticipated expiration: 2030-05-09

Abstract

The utility model discloses a cooling device for hot rolling mill, include the hot rolling mill body and locate the protective housing of hot rolling mill body one side, the supporting leg has all been welded in protective housing bottom four corners, and protective housing both sides outer wall all has welded the closing plate, closing plate middle part outer wall intercommunication has the rectangle connecting pipe, and the both ends outer wall of rectangle connecting pipe all is equipped with the first roller and the second roller that compresses tightly, rectangle connecting pipe top and bottom inner wall all communicate the first connecting pipe that has the equidistance and distribute, and first connecting pipe top is equipped with the mount. The utility model discloses a be equipped with double-deck heat insulating board in one side of hot rolling mill body, can effectively the cold air of separation still water smoke, avoid causing the influence to the hot rolling mill heating to the inside circulation cold water of protective housing can cool down the inside hot-air of intake pipe, improves the cooling efficiency of hot rolling area, and all be equipped with at the both ends of rectangle connecting pipe and compress tightly the roller, can compress tightly rolling the area, prevents that the hot rolling area from sliding.

Description

Cooling device for hot rolling mill

Technical Field

The utility model relates to a cooling technology field especially relates to a cooling device for hot rolling mill.

Background

Hot rolling is a rolling performed at a recrystallization temperature or lower, as compared with cold rolling, which is a rolling performed at a recrystallization temperature or higher. In a simple point, a billet is heated and then subjected to several rolling passes, edge cutting and straightening to form a steel plate, which is called hot rolling. Can obviously reduce energy consumption and cost. The metal plasticity is high during hot rolling, the deformation resistance is low, and the energy consumption of metal deformation is greatly reduced. The existing hot rolling mill needs to manually carry the colored solder blocks after hot rolling to the colored solder blocks to a conveying device after hot rolling, wastes time and labor, and meanwhile, the cooling device of the existing hot rolling mill generally adopts a water spraying mode to cool down, so that water after being used is directly discharged to pollute the environment and simultaneously cause waste of water resources, and the cost of equipment cooling is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a cooling device for a hot rolling mill.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a cooling device for a hot mill comprises a hot mill body and a protective shell arranged on one side of the hot mill body, wherein supporting legs are welded at four corners of the bottom of the protective shell, sealing plates are welded at outer walls of two sides of the protective shell, a rectangular connecting pipe is communicated with the outer wall of the middle of the sealing plate, a first compression roller shaft and a second compression roller shaft are arranged on outer walls of two ends of the rectangular connecting pipe, the top and inner walls of the bottom of the rectangular connecting pipe are communicated with first connecting pipes which are distributed equidistantly, a fixed frame is arranged at the top of the first connecting pipe, atomization nozzles which are distributed equidistantly are fixed on the fixed frame and connected with second connecting pipes, an air inlet pipe is inserted into the first connecting pipe, an air pump is connected to one end of the air inlet pipe, which is far away from the first connecting pipe, an water inlet pipe, the outer wall of one side of supporting leg has double-deck heat insulating board in spiro union, and the outer wall of double-deck heat insulating board one side is opened there is the rectangle notch.

Preferably, the second connecting pipe and the water inlet pipe are both externally connected with a cold water pipe.

Preferably, the axle center of the rectangular notch and the axle center of the rectangular connecting pipe are positioned on the same horizontal plane.

Preferably, the hot rolling mill body and the air pump are both connected with a switch, and the switch is connected with an external power supply.

Preferably, the vertical section of the double-layer heat insulation plate is of an L-shaped structure.

Preferably, the first pressing roller shaft is located above the second pressing roller shaft.

The utility model has the advantages that:

1. this cooling device for hot rolling mill through adopting water-cooling and two kinds of cooling modes of forced air cooling, carries out rapid cooling to the rolling strip after the heating to the air that utilizes to contain water smoke cools down the hot rolling strip, and it is better not through the cooling effect, can also practice thrift a large amount of water resources, reduces the waste of fresh water resource.

2. This cooling device for hot rolling mill of design is equipped with double-deck heat insulating board through the one side at the hot rolling mill body, can effectively the cold air of separation still water smoke, avoids causing the influence to the hot rolling mill heating, and the inside circulation cold water of protective housing can cool down the inside hot-air of intake pipe, improves the cooling efficiency of hot rolling strip, and all be equipped with at the both ends of rectangular connection pipe and compress tightly the roller, can compress tightly rolling the area, prevents that hot rolling strip from sliding.

Drawings

FIG. 1 is a sectional view showing the overall structure of a cooling apparatus for a hot rolling mill according to the present invention;

FIG. 2 is a front view of a cooling structure of a cooling device for a hot rolling mill according to the present invention;

fig. 3 is a cross-sectional view of a cooling structure of a cooling device for a hot rolling mill according to the present invention.

In the figure: 1 hot rolling mill body, 2 protective housing, 3 supporting legs, 4 closing plates, 5 rectangle connecting pipes, 6 first compression roller shafts, 7 second compression roller shafts, 8 first connecting pipes, 9 mount, 10 atomizer, 11 second connecting pipes, 12 intake pipes, 13 air pumps, 14 inlet tubes, 15 drain pipes, 16 double-deck heat insulating boards, 17 rectangle notches.

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.

Referring to fig. 1-3, a cooling device for a hot rolling mill comprises a hot rolling mill body 1 and a protective shell 2 arranged on one side of the hot rolling mill body 1, wherein supporting legs 3 are welded at four corners of the bottom of the protective shell 2, sealing plates 4 are welded on outer walls of two sides of the protective shell 2, a rectangular connecting pipe 5 is communicated with an outer wall of the middle part of each sealing plate 4, outer walls of two ends of each rectangular connecting pipe 5 are respectively provided with a first pressing roller shaft 6 and a second pressing roller shaft 7, the first pressing roller shafts 6 are positioned above the second pressing roller shafts 7, inner walls of the top part and the bottom part of each rectangular connecting pipe 5 are respectively communicated with first connecting pipes 8 which are distributed at equal intervals, a fixed frame 9 is arranged at the top part of each first connecting pipe 8, atomizing nozzles 10 which are distributed at equal intervals are fixed on the fixed frame 9, the atomizing nozzles 10 are respectively connected with second connecting pipes 11, the hot rolling mill body 1 and the air pump 13 all are connected with the switch, and the switch is connected with external power source, one side inner wall welding of protective housing 2 has inlet tube 14, and the opposite side inner wall welding of protective housing 2 has drain pipe 15, the equal externally connected with cold water pipe of second connecting pipe 11 and inlet tube 14, one side outer wall spiro union of supporting leg 3 has double-deck heat insulating board 16, and open of 16 one side outer walls of double-deck heat insulating board has rectangle notch 17, the perpendicular cross-section of double-deck heat insulating board 16 is L type structure, rectangle notch 17 axle center and 5 axle centers of rectangle connecting pipe.

The working principle is as follows: when the cooling device for the hot rolling mill is used, firstly, a rolled strip heated by the hot rolling mill body 1 penetrates through the rectangular notch 17 of the double-layer heat insulation plate 16, then the rolled strip penetrates through the rectangular connecting pipe 5, then the external switch of the air pump 13 is turned on, then the second connecting pipe 11 and the water inlet pipe 12 are filled with cold water, the atomizing nozzle 10 can spray water mist, the air containing the water mist can be blown to the surface of the hot rolled strip by the air inlet pipe 12 to be cooled, when the temperature of ambient air rises, the cold water inside the protective shell 2 can cool the hot air inside the air inlet pipe 12, the blown air is cold air, and therefore the cooling efficiency of the hot rolled strip is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The cooling device for the hot mill comprises a hot mill body (1) and a protective shell (2) arranged on one side of the hot mill body (1), and is characterized in that supporting legs (3) are welded at four corners of the bottom of the protective shell (2), sealing plates (4) are welded at outer walls of two sides of the protective shell (2), a rectangular connecting pipe (5) is communicated with the outer wall of the middle of each sealing plate (4), first compression roller shafts (6) and second compression roller shafts (7) are arranged at outer walls of two ends of each rectangular connecting pipe (5), the top and the bottom inner walls of each rectangular connecting pipe (5) are communicated with first connecting pipes (8) distributed at equal intervals, a fixed frame (9) is arranged at the top of each first connecting pipe (8), atomization spray nozzles (10) distributed at equal intervals are fixed on the fixed frame (9), and the atomization spray nozzles (10) are connected with second connecting pipes (, intake pipe (12) are all pegged graft to first connecting pipe (8) inside, and intake pipe (12) keep away from the one end of first connecting pipe (8) and be connected with air pump (13), one side inner wall welding of protective housing (2) has inlet tube (14), and the opposite side inner wall welding of protective housing (2) has drain pipe (15), one side outer wall spiro union of supporting leg (3) has double-deck heat insulating board (16), and open double-deck heat insulating board (16) one side outer wall has rectangle notch (17).

2. The cooling device of claim 1, wherein a cold water pipe is externally connected to each of the second connecting pipe (11) and the water inlet pipe (14).

3. The cooling device for hot rolling mill according to claim 1, characterized in that the axis of the rectangular notch (17) and the axis of the rectangular connecting pipe (5) are located on the same horizontal plane.

4. The cooling device for hot rolling mill according to claim 1, characterized in that the switch is connected to the hot rolling mill body (1) and the air pump (13), and the switch is connected to an external power supply.

5. A cooling device for hot rolling mill according to claim 1, characterized in that the double-layer heat insulating plate (16) has an L-shaped vertical section.

6. A cooling device for hot rolling mill according to claim 1, characterized in that the first press roller shaft (6) is located above the second press roller shaft (7).