CN218925687U

CN218925687U - Steel billet hot-feeding roller way heat preservation device

Info

Publication number: CN218925687U
Application number: CN202222318318.7U
Authority: CN
Inventors: 王建; 彭东
Original assignee: Nanjing Xianhe Engineering Technology Co ltd
Current assignee: Nanjing Xianhe Engineering Technology Co ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2023-04-28
Anticipated expiration: 2032-09-01

Abstract

The embodiment of the application provides a steel billet hot conveying roller way heat preservation device, which is a totally-enclosed structure surrounding a roller way, and comprises an upper heat preservation cover arranged on the upper part of the roller way, a bottom heat preservation plate arranged on the lower part of the roller way and side heat preservation plates arranged on two sides of the roller way. The heat preservation device has the advantages of good heat preservation effect, small heat loss of the steel billet, convenient assembly and maintenance and the like.

Description

Steel billet hot-feeding roller way heat preservation device

Technical Field

The utility model relates to a heat preservation device for a billet hot-feeding roller way of a steel smelting and rolling workshop.

Background

The steel billet cast continuously in steelmaking is rolled and formed through a steel rolling process. The original technology is that cold blanks or billets with the temperature of about 600 ℃ are transported to a rolling mill, and are rolled after being reheated by a heating furnace. The prior art is that a hot billet cast continuously is directly transported to a steel rolling workshop through a roller way, heated by a heater for uniform temperature in the process, and finally sent to a rolling mill for rolling; the technology requires that the temperature of the hot steel billet transported by a roller way cannot be lower than 850 ℃, the temperature of the continuously cast hot steel billet is about 920-950 ℃, the length of the roller way is generally more than 80m, and the heat insulation and heat preservation are required to be carried out in the process of transporting the hot steel billet to meet the requirements.

Disclosure of Invention

The utility model aims to: the utility model aims to provide a steel billet hot conveying roller way heat preservation device so as to realize heat insulation and preservation in the hot steel billet conveying process.

The technical scheme is as follows: the utility model provides a billet hot-conveying roller way heat preservation device which is of a fully-closed structure surrounding a roller way.

Further, the heat preservation device comprises an upper heat preservation cover arranged on the upper portion of the roller way, a bottom heat preservation plate arranged on the lower portion of the roller way and side heat preservation plates arranged on two sides of the roller way. In the technical scheme, the heat preservation device is formed by splicing the upper part, the lower part and the unit type heat preservation structures on the side surfaces, and is more convenient to install, overhaul and replace.

Further, the upper heat-insulating cover comprises a first frame with a jiong -shaped structure, a first heat-insulating core is arranged on the inner side of the first frame, and a first protective silk screen is laid on the first heat-insulating core.

Further, the roller way is provided with a plurality of upper heat preservation covers along the length direction; the two ends of the first frame are respectively provided with a first end plate and a second end plate, wherein the first end plate is of a 7-shaped structure and is used for being buckled with the two end plates of the adjacent upper heat preservation covers.

Further, a first reinforcing rib is arranged on the first frame.

Further, the bottom insulation board comprises a second frame with an inverted jiong structure, a second insulation core is arranged on the inner side of the second frame, and a second protection silk screen is laid on the second insulation core.

Further, the roller way is provided with a plurality of bottom heat insulation plates along the length direction; the two ends of the frame II are respectively an end plate III and an end plate IV, wherein the end plate III is in a J-shaped structure and is used for being buckled with the end plate IV of the adjacent bottom heat insulation plate.

Further, a base and a reinforcing rib II are arranged on the second frame.

Further, the heat preservation device further comprises a lower steel frame, wherein the lower steel frame is used for supporting the upper heat preservation cover, the bottom heat preservation plate and the side heat preservation plate.

Further, the lower steel frame comprises a bottom plate and baffle plates which are connected to two ends of the bottom plate and are L-shaped; the bottom heat preservation board is arranged on the bottom board, and the baffle supports the upper heat preservation cover and the side heat preservation board.

The beneficial effects are that: compared with the prior art, the utility model has the following advantages: the heat preservation device adopts a fully-closed structure, can carry out closed heat preservation on the whole process of hot steel billet transportation, reduces the temperature drop in the hot steel billet transportation process, can control the temperature drop to be 30-70 ℃, and has good heat preservation effect.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the upper thermal shield;

FIG. 3 is a schematic view of the structure of the bottom insulation board;

FIG. 4 is a schematic view of the structure of the lower steel frame;

reference numerals: 1, an upper heat-insulating cover; 2, a side heat-insulating plate; 3, a bottom heat-insulating plate; 4, a lower steel frame; 5, a roller way; 6, an end plate I; 7, a first frame; 8, a first heat preservation core; 9, protecting the first silk screen; 10, reinforcing rib I; 11, end plate two; 12 end plates III; 13, a second frame; 14, a heat preservation core II; 15, protecting a second silk screen; 16, a base; 17, reinforcing ribs II; 18, end plate four; 19, a first baffle; 20, a bottom plate; 21, baffle two.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

The billet hot conveying roller way heat preservation device shown in fig. 1 is of a totally-enclosed structure surrounding a roller way 5, and comprises an upper heat preservation cover 1, a side heat preservation plate 2, a bottom heat preservation plate 3 and a lower steel frame 4.

Referring to fig. 2, the upper heat-insulating cover 1 is installed on the upper portion of the roller way 5, and comprises a first end plate 6, a first frame 7, a first heat-insulating core 8, a first protective wire mesh 9, a first reinforcing rib 10 and a second end plate 11. Wherein, frame one 7 adopts "jiong" shape structure, has welded stiffening rib one 10 on frame one 7, has guaranteed the whole rigidity of upper portion heat preservation cover 1 like this, improves its heat-resistant deformability, can not take place the buckling because of being heated in the production process. Two ends of the first frame 7 are respectively provided with a first end plate 6 and a second end plate 11, wherein the first end plate 6 adopts a 7-shaped structure and is used for being buckled with the second end plate 11 of the adjacent upper heat preservation cover 1, so that the sealing between the two upper heat preservation covers 1 is ensured. The first heat preservation core 8 is arranged in the first frame 7, and is mainly used for heat insulation and heat preservation, the first protection silk screen 9 is laid on the first heat preservation core 8, the first heat preservation core 8 is prevented from moving or falling, the first heat preservation silk screen 9 is made of heat-resistant materials, high-temperature ablation is avoided, and the service life of the heat preservation silk screen is prolonged.

The side heat preservation boards 2 are arranged on two sides of the roller way 5 and are used for heat insulation and preservation of the side of the roller way 5.

Referring to fig. 3, the bottom insulation board 3 is installed at the lower part of the roller way 5 and comprises a third end plate 12, a second frame 13, a second insulation core 14, a second protection wire mesh 15, a base 16, a second reinforcing rib 17 and a fourth end plate 18. The second frame 13 adopts an inverted jiong structure, and the base 16 and the second reinforcing ribs 17 are welded below the second frame 13, so that the integral rigidity of the bottom insulation board 3 is ensured, the heat deformation resistance of the bottom insulation board is improved, and buckling caused by heating in the production process is avoided. Two ends of the second frame 13 are respectively provided with a third end plate 12 and a fourth end plate 18, wherein the third end plate 12 adopts a J-shaped structure and is used for being buckled with the fourth end plate 18 of the adjacent bottom heat insulation plates 3, so that the sealing between the two bottom heat insulation plates 3 is ensured. The second heat preservation core 14 is arranged inside the second frame 13 and mainly used for heat insulation, the second protection silk screen 15 is laid on the second heat preservation core 14, the second heat preservation core 14 is prevented from moving or falling, the second heat preservation silk screen 15 is made of heat-resistant materials, high-temperature ablation is avoided, and the service life of the second heat preservation core is prolonged.

Referring to fig. 4, the lower steel frame 4 is a load bearing member of the upper insulation cover 1 and the side insulation board 2, and includes a first baffle 19, a bottom plate 20, and a second baffle 21. The first baffle plate 19 and the second baffle plate 21 can also block hot billets, prevent the hot billets from exiting the roller way 5 to damage the upper heat insulation cover 1 and the side heat insulation plates 2, and the bottom plate 20 can also block the heads and the tails of the hot billets which are possibly bent to prevent the hot billets from colliding with the bottom heat insulation plates 3.

Claims

1. The utility model provides a steel billet hot feed roll table heat preservation device which characterized in that: the roller bed is a totally-enclosed structure surrounding the roller bed;

the heat preservation device comprises an upper heat preservation cover arranged at the upper part of the roller way, a bottom heat preservation plate arranged at the lower part of the roller way and side heat preservation plates arranged at two sides of the roller way;

the upper heat-insulating cover comprises a first frame with a jiong -shaped structure, wherein a first heat-insulating core is arranged on the inner side of the first frame, and a first protective silk screen is laid on the first heat-insulating core;

the roller way is provided with a plurality of upper heat preservation covers along the length direction; the two ends of the first frame are respectively provided with a first end plate and a second end plate, wherein the first end plate is of a 7-shaped structure and is used for being buckled with the two end plates of the adjacent upper heat preservation covers;

the bottom heat-insulating plate comprises a second frame with an inverted jiong structure, a second heat-insulating core is arranged on the inner side of the second frame, and a second protective silk screen is laid on the second heat-insulating core;

the roller way is provided with a plurality of bottom heat insulation boards along the length direction; the two ends of the frame II are respectively provided with a third end plate and a fourth end plate, wherein the third end plate is of a J-shaped structure and is used for being buckled with the fourth end plate of the adjacent bottom heat-insulating plate;

the heat preservation device further comprises a lower steel frame, wherein the lower steel frame is used for supporting the upper heat preservation cover, the bottom heat preservation plate and the side heat preservation plate;

the lower steel frame comprises a bottom plate and baffle plates which are connected to two ends of the bottom plate and are L-shaped; the bottom heat preservation board is arranged on the bottom board, and the baffle supports the upper heat preservation cover and the side heat preservation board.

2. The thermal insulation device of claim 1, wherein: and the first frame is provided with a first reinforcing rib.

3. The thermal insulation device of claim 1, wherein: and the second frame is provided with a second base and a second reinforcing rib.