CN201325997Y - Steel coil heating device - Google Patents

Abstract

The utility model is a pit-type steel coil heating and heat preservation device, which includes a steam serpentine heating pipe, a heat insulating material, a box cover, and a cylinder mechanism for driving the box cover to open or close; it uses a reinforced concrete pit as a box body, Arrange steel coils (7) in the middle of the pit, arrange steam serpentine heating pipes (5) and heat insulation materials around the pit; use double arc-shaped covers, each driven by a cylinder mechanism, and the two arc-shaped covers One end is hinged with the support on the ground, and the other end is connected in contact, forming an arched box cover after being connected. The utility model consumes less steel material, and the investment is small; the amount of heat insulation material is small, the heat preservation effect is good, and energy saving; The cover is light in design and easy to operate. The utility model is suitable for high-strength steel and a cold-rolling mill front-process unit with high carbon content or silicon content, and can prevent edge cracks during steel coil rolling and reduce strip-broken accidents.

Description

A coil heating device

technical field

The utility model relates to a heating device, in particular to a steel coil heating device.

Background technique

Due to the high brittleness of the steel strip with high carbon content or silicon content, when the steel coil is uncoiled, the edge of the strip steel is prone to cracks, and the strip is prone to breakage during the rolling process. In order to solve this problem, before strip rolling, preheating measures are adopted to make the steel coil reach a certain temperature, reduce the brittleness of the strip steel, improve the plasticity and rollability of the strip steel, so as to prevent the edge cracking of the strip steel during the production process And broken strip, improve the operation rate of the production line and the yield of finished products. At present, some domestic cold rolling mills use the "strip heating and heat preservation device" (patent number: 200620163850.4). The "strip steel heating and heat preservation device" adopts the structure of a steel structure box placed on the ground, so it has the following disadvantages: a lot of steel consumption and large investment; a large amount of box insulation materials; a large workshop space and poor operating vision , It is inconvenient to lift the steel coil, and the collision between the steel coil and the box is prone to occur.

Contents of the invention

The technical problem to be solved by the utility model is to provide an improved steel coil heating device with a new structure to overcome the defects of the above-mentioned steel structure box heating and heat preservation device.

The technical solution of the utility model to solve the technical problem is: it includes a steam serpentine heating pipe, a heat insulating material, a box cover, and a cylinder mechanism for driving the box cover to open or close. It is a pit type steel coil heating and heat preservation device. The device uses a reinforced concrete pit as the box body, arranges steel coils in the middle of the pit, and arranges steam serpentine heating pipes and heat insulation materials around the pit; uses double arc-shaped covers as the box cover, and each consists of a cylinder mechanism Driven, one end of the two arc-shaped covers is hinged with the support on the ground, and the other end is contacted and connected, and after being connected, it forms an arched box cover.

The utility model adopts pit structure, so compared with the prior art, the utility model has the following advantages: less steel consumption, less investment; less thermal insulation material for the box, good thermal insulation effect, energy saving; small workshop space occupation, good operating vision , It is convenient to lift the steel coil, and it is not easy for the steel coil to collide with the box body; the curved insulation cover is light in design and easy to operate. It is suitable for high-strength steel with high carbon content or silicon content in the front process unit of the cold rolling mill. It can prevent edge cracks and reduce strip breakage accidents during steel coil rolling.

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a top view of FIG. 1 .

In the figure: 1. Left arc cover; 2. Left cylinder; 3. Left cylinder support; 4. Left arc cover support; 5. Steam serpentine heating tube; 6. Saddle; 7. Steel coil; 8 .Side wall panel; 9. Reinforced concrete pit; 10. Heat insulation material; 11. Right arc cover support; 12. Right cylinder support; 13. Right cylinder; 14. Right arc cover; 15. First Right arc cover gasket; 16. First left arc cover gasket; 17. Second left arc cover gasket; 18. Second right arc cover gasket.

Detailed ways

The utility model is a pit-type steel coil heating and heat preservation device improved on the "strip steel heating and heat preservation device" (patent number: 200620163850.4). , heat insulating material 10, box cover, the cylinder mechanism that drives the box cover to open or close. This device uses the reinforced concrete pit 9 (abbreviated as the pit) as the box body, and the saddle 6 and the steel coil 7 mounted on the saddle 6 are arranged at the bottom of the pit, and the inner wall of the pit along the axial direction of the steel coil 7 Side wall panels 8 are installed on the top, and steam serpentine heating pipes 5 and heat insulation materials 10 are arranged around the pit; double arc-shaped covers are used, each driven by a cylinder mechanism, and one end of the two arc-shaped covers is connected to the ground on the ground. The support is hinged, and the other end is contacted and connected, and after being connected, it forms an arched box cover.

Silicone rubber gaskets are used for the sealing between the double arc-shaped covers, between the arc-shaped covers and the reinforced concrete pit, and between the arc-shaped covers and the side wall panels.

Described double arc cover is made up of left arc cover 1 and right arc cover 14 with the same structure, wherein: one end of left arc cover 1 is hinged with left arc cover support 4 on the ground, and this end is installed There is a second left arc cover gasket 17. One end of the right arc cover 14 is hinged with the right arc cover support 11 on the ground, and the second left arc cover gasket 18 is equipped with this end. The other ends of the left arc-shaped cover 1 and the right arc-shaped cover 14 are equipped with a first left arc-shaped cover gasket 16 and a first right arc-shaped cover gasket 15 respectively. The opening or closing of the left arc cover 1 and the right arc cover 14 is driven by the left cylinder 2 and the right cylinder 13 respectively. Left cylinder 2, right cylinder 13 are contained on the left cylinder support 3, the right cylinder support 12 respectively.

Briefly describe the working process of the present utility model below:

Drive cylinder earlier and open left arc cover 1, right arc cover 14, the steel coil 7 that needs heating is hung on the saddle 6 of reinforced concrete pit 9 places by workshop crane, then close left and right arc covers. After the steel coil is heated to the temperature required by the process by the steam serpentine tube 5, the left and right arc covers are opened, and the steel coil in the pit is hoisted by the crane and transported to the unit line for rolling, and the left and right arc covers are closed at the same time. build. Like this, steel coil heating insulation device has just finished a working cycle process.

Claims (2)

1. coil of strip heating unit, comprise the cylinder mechanism that steam serpentine heating pipe, lagging material, case lid, driving case lid are opened or closed, it is characterized in that a kind of pit type coil of strip heating and heat-insulating device, this installs with the Steel Concrete melt pit as casing, at melt pit intermediate arrangement coil of strip (7), around melt pit, arrange steam serpentine heating pipe (5) and lagging material; Use Gothic lid, each is driven by a cylinder mechanism, and an end and the ground bearing of two circular arc female caps are hinged, and the other end contact links to each other, and is the arch case lid after linking to each other.

2. coil of strip heating unit according to claim 1 is characterized in that between Gothic lid, the sealing between circular arc female cap and the Steel Concrete melt pit, between circular arc female cap and the framed side wallboard, all adopts the silicone rubber seal pad.

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