CN213067121U

CN213067121U - Double-loop water cooling structure for metallurgical furnace roller

Info

Publication number: CN213067121U
Application number: CN202021141157.3U
Authority: CN
Inventors: 丁勤丰
Original assignee: Jiangsu Lianggong Precision Alloy Steel Co ltd
Current assignee: Jiangsu Lianggong Precision Alloy Steel Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-04-27
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses a metallurgical stove roller is with two return circuits water cooling structure, including the stove roller, its characterized in that: one end of the furnace roller is fixedly connected with the furnace roller, an inner pipe is arranged inside the furnace roller, one end of the inner pipe, which is positioned inside the furnace roller, is fixedly connected with a flow guide ring, the inside of the flow guide ring is of a hollow structure, one side, which is far away from the inner pipe, of the flow guide ring is fixedly connected with the inside of the furnace roller, one end, which is positioned outside the furnace roller, of the inner pipe is provided with a water inlet channel, and a water outlet channel is formed between the inner pipe and the furnace roller; the inner part of the inner pipe is provided with a connecting pipe. The utility model discloses a to set up inhalant canal and exhalant canal and form two return circuits, can effectively dispel the heat to the inside heat of stove roller, through setting up first heat-conducting plate and second heat-conducting plate respectively, can carry out the effective absorption to the temperature of stove roller, can effectively increase the area of contact with the cooling water through the setting in first rivers hole and second rivers hole, increase water-cooling radiating effect.

Description

Double-loop water cooling structure for metallurgical furnace roller

Technical Field

The utility model relates to the technical field of metallurgy, specifically a metallurgical stove roller is with two return circuits water cooling structure.

Background

In the steel manufacturing industry or the non-ferrous metal manufacturing industry, continuous casting and rolling are relatively new processes and are applied more. The continuous casting and rolling process is a metal rolling process in which liquid metal is poured into a continuous casting machine and solidified through a water-cooled crystallizer to obtain a metal blank (called a continuous casting blank), and then the metal blank is directly rolled and formed in a hot continuous rolling unit after being kept warm for a certain time in a soaking pit without cooling. The process skillfully combines the casting process and the rolling process, and has the advantages of simplifying the process, improving the labor condition, increasing the metal yield, saving energy, improving the quality of continuous casting billets and being convenient for realizing mechanization and automation compared with the traditional process of firstly casting metal billets, heating the metal billets by a heating furnace and then rolling the metal billets. The process comprises the following steps: metal smelting, melt to a continuous casting machine, continuous casting, flying shear billet setting, tunnel soaking pit, conveying, temperature adjusting, rolling by a continuous rolling mill set, plate cooling, coiling by a coiling machine, and storing metal coils in a warehouse.

After the continuous casting slab is continuously cast out of the crystallizer, the continuous casting slab is conveyed to a continuous rolling unit for rolling, the equipment for carrying the conveying and connecting tasks is a tunnel type roller hearth soaking pit, and the slab is conveyed forwards in the pit by the rotation of furnace rollers while heating and heat preservation are carried out. Therefore, the furnace roller is subjected to the high temperature of more than 1000 ℃ in the heating furnace, keeps higher strength and conveys the plate blank forwards through in-situ self-rotation. The soaking furnace on one production line is generally 200-300 meters long, and is provided with 300-400 furnace rollers, the length of each furnace roller is 3-4 meters, the diameter of each roller shaft is 150-200 mm, and the outer diameter of each furnace roller is about 350mm after the roller ring and the refractory material are added.

Generally, water is introduced into the furnace roller for cooling so as to remove heat and maintain the high-temperature strength of the furnace roller. However, the traditional water cooling method is to cool the center of the furnace roller shaft by water, only one single circulation loop is provided, the cooling effect is limited, especially the temperature of the surface of the furnace roller ring is high, so that the service life of the furnace roller is low, the production efficiency is seriously affected by replacing the damaged furnace roller, and the production cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a metallurgical stove roller is with two return circuits water cooling structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a double-loop water cooling structure for a metallurgical furnace roller comprises a furnace roller, wherein one end of the furnace roller is fixedly connected with a shaft head, an inner pipe is arranged inside the furnace roller, one end, located inside the furnace roller, of the inner pipe is fixedly connected with a flow guide ring, the inside of the flow guide ring is of a hollow structure, one side, away from the inner pipe, of the flow guide ring is fixedly connected with the inside of the furnace roller, a water inlet channel is formed in one end, located outside the furnace roller, of the inner pipe, and a water outlet channel is formed between the inner pipe and the furnace roller;

the inner pipe is internally provided with a connecting pipe, the connecting pipe is fixedly connected with one side of the flow guide ring, water outlet grooves are formed in the arc side face of the flow guide ring at equal intervals, and water inlet grooves are formed in one side of the flow guide ring connected with the inner pipe at equal intervals.

As a further aspect of the present invention: equidistant fixedly connected with second heat-conducting plate between connecting pipe and the inner tube, the second heat-conducting plate is provided with 6 altogether, and every the second rivers hole has been seted up through to the inside of second heat-conducting plate, and every the inside second rivers hole quantity of seting up of second heat-conducting plate is 3.

As a further aspect of the present invention: one side of the diversion ring, which is far away from the connecting pipe, is provided with a sealing plug, and one side of the sealing plug is provided with a threaded rod, and the threaded rod is in threaded connection with the shaft head.

As a further aspect of the present invention: the first heat-conducting plate and the second heat-conducting plate are made of metal materials with good heat conductivity.

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

the utility model discloses a to set up inhalant canal and exhalant canal and form two return circuits, can effectively dispel the heat to the inside heat of stove roller, through setting up first heat-conducting plate and second heat-conducting plate respectively, can carry out the effective absorption to the temperature of stove roller, can effectively increase the area of contact with the cooling water through the setting in first rivers hole and second rivers hole, increase water-cooling radiating effect.

Drawings

FIG. 1 is a schematic side sectional view of a double-circuit water cooling structure for a metallurgical furnace roller.

FIG. 2 is a schematic sectional view of a dual-circuit water cooling structure for a metallurgical furnace roller.

FIG. 3 is a schematic structural view of a deflector ring in a double-loop water cooling structure for a metallurgical furnace roller.

In the figure: the furnace roller comprises a furnace roller 1, an inner pipe 2, a water inlet channel 3, a water outlet channel 4, a water outlet groove 5, a first heat conducting plate 6, a second heat conducting plate 7, a connecting pipe 8, a threaded rod 9, a sealing plug 10, a flow guide ring 11, a first water flow hole 12, a second water flow hole 13, a water inlet groove 14 and a shaft head 15.

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.

Referring to fig. 1 to 3, in an embodiment of the present invention, a dual-loop water cooling structure for a metallurgical furnace roller includes a furnace roller 1, a shaft head 15 is fixedly connected to one end of the furnace roller 1, an inner tube 2 is disposed inside the furnace roller 1, a flow guide ring 11 is fixedly connected to one end of the inner tube 2 located inside the furnace roller 1, the inside of the flow guide ring 11 is a hollow structure, one side of the flow guide ring 11 away from the inner tube 2 is fixedly connected to the inside of the furnace roller 1, a water inlet channel 3 is disposed at one end of the inner tube 2 located outside the furnace roller 1, and a water outlet channel 4 is formed between the inner tube 2 and the furnace roller 1; the inside of inner tube 2 is provided with connecting pipe 8, and one side fixed connection of connecting pipe 8 and water conservancy diversion circle 11, water outlet tank 5 has been seted up to the circular arc side of water conservancy diversion circle 11 equidistant, water inlet tank 14 has been seted up to one side equidistant that water conservancy diversion circle 11 and inner tube 2 are connected, enter into the inside of connecting pipe 8 and inner tube 2 through inlet channel 3 cooling water, through water inlet tank 14 on the water conservancy diversion circle 11, inside the cooling water enters into water conservancy diversion circle 11, the inside that enters into water outlet channel 4 through water outlet tank 5 cooling water.

Please refer to fig. 1 and 2, the second heat conduction plate 7 is fixedly connected between the connection pipe 8 and the inner pipe 2 at equal intervals, 6 second heat conduction plates 7 are provided, and a second water flow hole 13 is formed in each second heat conduction plate 7 in a penetrating manner, the number of the second water flow holes 13 formed in each second heat conduction plate 7 is 3, the first heat conduction plates 6 are fixedly connected between the inner pipe 2 and the furnace roller 1 at equal intervals, 12 first heat conduction plates 6 are provided, a first water flow hole 12 is formed in each first heat conduction plate 6 in a penetrating manner, the number of the first water flow holes 12 formed in each first water flow hole 12 is 3, the temperature of the furnace roller can be effectively absorbed through the first heat conduction plates 6 and the second heat conduction plates 7, and the contact area with the cooling water can be effectively increased through the arrangement of the first water flow holes 12 and the second water flow holes 13.

Referring to fig. 1, a sealing plug 10 is disposed on a side of the deflector ring 11 away from the connecting pipe 8, a threaded rod 9 is disposed on a side of the sealing plug 10, and the threaded rod 9 is in threaded connection with a shaft head 15.

Referring to fig. 1, the first heat-conducting plate 6 and the second heat-conducting plate 7 are made of metal material with good thermal conductivity.

The utility model discloses a theory of operation is:

during the use, through first heat-conducting plate 6 and second heat-conducting plate 7, can carry out the effective absorption to the temperature of stove roller, enter into the inside of connecting pipe 8 and inner tube 2 through inlet channel 3 cooling water, the cooling water enters into inside second rivers hole 13 of second heat-conducting plate 7 inside, cool off the heat dissipation to second heat-conducting plate 7, the cooling water passes through intake chamber 14 on water conservancy diversion circle 11 afterwards, the cooling water enters into inside water conservancy diversion circle 11, the inside that enters into outlet channel 4 through outlet channel 5 cooling water, enter into first rivers hole 12 of first heat-conducting plate 6 inside, take away the heat of first heat-conducting plate 6 inside.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a metallurgical stove roller is with two return circuit water cooling structure, includes stove roller (1), its characterized in that: one end of the furnace roller (1) is fixedly connected with a shaft head (15), an inner pipe (2) is arranged inside the furnace roller (1), one end, located inside the furnace roller (1), of the inner pipe (2) is fixedly connected with a flow guide ring (11), the inside of the flow guide ring (11) is of a hollow structure, one side, away from the inner pipe (2), of the flow guide ring (11) is fixedly connected with the inside of the furnace roller (1), one end, located outside the furnace roller (1), of the inner pipe (2) is provided with a water inlet channel (3), and a water outlet channel (4) is formed between the inner pipe (2) and the furnace roller (1);

the inside of inner tube (2) is provided with connecting pipe (8), just one side fixed connection of connecting pipe (8) and water conservancy diversion circle (11), water outlet tank (5) have been seted up to the circular arc side of water conservancy diversion circle (11) equidistant, water inlet tank (14) have been seted up to one side equidistant that water conservancy diversion circle (11) and inner tube (2) are connected.

2. The double-circuit water cooling structure for the metallurgical furnace roller according to claim 1, characterized in that: equidistant fixedly connected with second heat-conducting plate (7) between connecting pipe (8) and inner tube (2), second heat-conducting plate (7) are provided with 6 altogether, and every second rivers hole (13) have been seted up in running through to the inside of second heat-conducting plate (7), and every second rivers hole (13) quantity of seting up in second heat-conducting plate (7) are 3.

3. The metallurgical furnace roller double-circuit water cooling structure according to claim 2, wherein: equidistant fixedly connected with first heat-conducting plate (6) between inner tube (2) and stove roller (1), just first heat-conducting plate (6) are provided with 12 altogether, every first rivers hole (12) have all been run through to the inside of first heat-conducting plate (6), and every first rivers hole (12) quantity of seting up in first rivers hole (12) are 3.

4. The double-circuit water cooling structure for the metallurgical furnace roller according to claim 1, characterized in that: one side of the diversion ring (11) far away from the connecting pipe (8) is provided with a sealing plug (10), one side of the sealing plug (10) is provided with a threaded rod (9), and the threaded rod (9) is in threaded connection with the shaft head (15).

5. The metallurgical furnace roller of claim 3, with two return water cooling structure, characterized in that: the first heat-conducting plate (6) and the second heat-conducting plate (7) are both made of metal materials with good heat conductivity.