Steel strip annealing energy-saving heat preservation box

Abstract

The utility model discloses a steel belt annealing energy-saving heat preservation box which comprises a box body, a first heat storage shell, a second heat storage shell, a first heat conduction pipe and a second heat conduction pipe, the first heat storage shell is arranged in the box body, and the second heat storage shell is arranged in the box body in a lifting mode and located above the first heat storage shell. The first heat conduction pipe is arranged in the first heat storage shell, the two ends of the first heat conduction pipe extend to the outer side of the first heat storage shell, the second heat conduction pipe is arranged in the second heat storage shell, the two ends of the second heat conduction pipe extend to the outer side of the second heat storage shell, and heat conduction oil is arranged in the first heat storage shell and the second heat storage shell correspondingly. The two ends of the box body are respectively provided with an inlet and an outlet corresponding to the steel belt. According to the energy-saving heat preservation box for annealing the steel belt, heat of the steel belt can be transmitted to the heat conduction oil in the first heat storage shell and the heat conduction oil in the second heat storage shell for heat storage, and the energy-saving performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel strip production, in particular to an energy-saving and heat-insulating box for annealing steel strips. Background Art

[0002] During the production process of steel strip, annealing is required. The annealing process includes cooling the high-temperature steel strip at an appropriate speed.

[0003] In order to control the cooling speed of the steel strip, the steel strip can be placed in an insulation box and ventilated to dissipate heat so that the steel strip is cooled at a specified speed. During the annealing process, the heat of the steel strip is taken away by the airflow and cannot be well utilized, resulting in serious cost waste and needs to be improved. Utility Model Content

[0004] The utility model aims to provide a steel strip annealing energy-saving heat preservation box, which can anneal the steel strip and utilize heat to improve energy saving.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A steel strip annealing energy-saving insulation box comprises: a box body, a first heat storage shell, a second heat storage shell, a first heat conduction pipe and a second heat conduction pipe, wherein the first heat storage shell is arranged in the box body, the second heat storage shell can be raised and lowered in the box body and is located above the first heat storage shell, the first heat conduction pipe is arranged in the first heat storage shell, and both ends of the first heat conduction pipe extend to the outside of the first heat storage shell, the second heat conduction pipe is arranged in the second heat storage shell, and both ends of the second heat conduction pipe extend to the outside of the second heat storage shell, heat transfer oil is respectively arranged in the first heat storage shell and the second heat storage shell, and both ends of the box body are respectively provided with inlets and outlets corresponding to the steel strip.

[0007] Wherein, the outer surface of the box body is covered with thermal insulation cotton.

[0008] Wherein, the first heat conducting pipe and the second heat conducting pipe are respectively bent coils.

[0009] Wherein, a lifting drive device connected to the second heat storage shell is arranged on the top of the box body.

[0010] Wherein, the lifting drive device adopts an oil cylinder.

[0011] Wherein, the box body is provided with guide frames located on both sides of the first heat storage shell, and the guide frames are provided with guide rollers.

[0012] Wherein, a heat insulating pad is arranged in the box body and is located below the first heat storage shell.

[0013] Wherein, a guide sleeve is arranged on the top of the box body, and a guide rod penetrating the guide sleeve is arranged on the top of the second heat storage shell.

[0014] Wherein, a heat conduction plate extending downward into the heat conduction oil is arranged at the top of the inner cavity of the first heat storage shell, and a through hole corresponding to the second heat conduction pipe is arranged on the heat conduction plate.

[0015] The beneficial effects of the utility model are as follows: a steel strip annealing energy-saving insulation box, which clamps a section of steel strip passing through the box through the cooperation of the first heat storage shell and the second heat storage shell, and transfers the heat of the steel strip to the heat transfer oil in the first heat storage shell and the second heat storage shell for heat storage. The first heat transfer pipe and the second heat transfer pipe can pass cold medium to heat the cold medium, thereby realizing the utilization of heat in the heat transfer oil, and using the flow rate of the cold medium to control the heat release of the heat transfer oil, thereby controlling the cooling speed of the steel strip, so that the steel strip can be cooled according to the speed specified for annealing, thereby improving energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure after the second heat storage shell rises. DETAILED DESCRIPTION

[0018] Combine the following Figure 1~Figure 2 The technical solution of the utility model is further illustrated by specific embodiments.

[0019] like Figure 1 The steel strip annealing energy-saving heat preservation box shown includes: a box body 1, a first heat storage shell 3, a second heat storage shell 2, a first heat conduction pipe 5 and a second heat conduction pipe 4. The first heat storage shell 3 is arranged in the box body 1. In this embodiment, the box body 1 is provided with a heat insulation pad 11 located below the first heat storage shell 3. The heat insulation pad 11 can be made of a supporting material with good heat insulation effect to reduce the downward transfer of heat from the first heat storage shell 3. In addition, the outer surface of the box body 1 is covered with heat insulation cotton to reduce the outward dissipation of heat from the box body 1.

[0020] Inlet and outlet ports 15 corresponding to the steel belt 14 are respectively provided at both ends of the box body 1, so as to facilitate the entry and exit of the steel belt 14. The box body 1 is provided with guide frames 10 located on both sides of the first heat storage shell 3, and guide rollers 9 are provided on the guide frames 10 to provide rolling support for the steel belt 14, so that the steel belt 14 is transported through the top surface of the first heat storage shell 3 to transfer heat to the first heat storage shell 3.

[0021] The second heat storage shell 2 is liftably arranged in the box body 1 and is located above the first heat storage shell 3. In this embodiment, a lifting drive device 8 connected to the second heat storage shell 2 is arranged on the top of the box body 1. The lifting drive device 8 can use a cylinder to control the lifting of the second heat storage shell 2.

[0022] Heat transfer oil 12 is respectively arranged in the first heat storage shell 3 and the second heat storage shell 2. Through the cooperation between the first heat storage shell 3 and the second heat storage shell 2, a section of steel belt 14 passing through the box body 1 is clamped, and the heat of the steel belt 14 is transferred to the heat transfer oil 12 in the first heat storage shell 3 and the second heat storage shell 2 for heat storage. Figure 2 After completion, after annealing is completed, the second heat storage shell 2 rises, the steel belt 14 continues to move forward for a distance, and then the second heat storage shell 2 descends, and the annealing work is cyclically performed.

[0023] In order to improve the annealing efficiency, the lengths of the first heat storage shell 3 and the second heat storage shell 2 are as long as tens of meters, and the annealing treatment of tens of meters of steel strip is performed at a time. In this embodiment, a guide sleeve 7 is provided on the top of the box body 1, and a guide rod 6 penetrating the guide sleeve 7 is provided on the top of the second heat storage shell 2 to guide the lifting of the second heat storage shell 2, with high stability.

[0024] The first heat-conducting pipe 5 is arranged in the first heat-storage shell 3, and both ends of the first heat-conducting pipe 5 extend to the outside of the first heat-storage shell 3. The second heat-conducting pipe 4 is arranged in the second heat-storage shell 2, and both ends of the second heat-conducting pipe 4 extend to the outside of the second heat-storage shell 2, so as to facilitate the external cold medium pumping pipeline, and introduce cold medium into the first heat-conducting pipe 5 and the second heat-conducting pipe 4 to heat the cold medium, so as to utilize the heat in the heat-conducting oil 12, and use the flow rate of the cold medium to control the heat release of the heat-conducting oil 12, thereby controlling the cooling speed of the steel strip 14, so that the steel strip 14 can be cooled at the speed specified for annealing, which not only improves energy saving, but also meets the annealing process requirements.

[0025] In this embodiment, the first heat conducting pipe 5 and the second heat conducting pipe 4 are respectively bent coils, which extend the length in the heat conducting oil 12, increase the contact surface with the heat conducting oil 12, and improve the heat exchange efficiency between the heat conducting oil 12 and the cold medium.

[0026] like Figure 1 As shown, a heat conducting plate 13 extending downward into the heat conducting oil 12 is provided at the top of the inner cavity of the first heat storage housing 3 to transfer the heat at the top of the first heat storage housing 3 to the heat conducting oil 12. The heat conducting plate 13 is provided with a through hole corresponding to the second heat conducting pipe 5, and the second heat conducting pipe 5 is laid through the heat conducting plate 13 to strengthen the support for the second heat conducting pipe 5, and the heat conducting plate 13 is used to transfer heat to the second heat conducting pipe 5, further improving the effect of heating the cold medium in the second heat conducting pipe 5.

[0027] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A steel strip annealing energy-saving insulation box, used for annealing and heat utilization of steel strip, characterized in that: include: A box body, a first heat storage shell, a second heat storage shell, a first heat conduction pipe and a second heat conduction pipe, wherein the first heat storage shell is arranged in the box body, the second heat storage shell can be raised and lowered in the box body and is located above the first heat storage shell, the first heat conduction pipe is arranged in the first heat storage shell, and both ends of the first heat conduction pipe extend to the outside of the first heat storage shell, the second heat conduction pipe is arranged in the second heat storage shell, and both ends of the second heat conduction pipe extend to the outside of the second heat storage shell, heat transfer oil is respectively arranged in the first heat storage shell and the second heat storage shell, and both ends of the box body are respectively provided with inlets and outlets corresponding to the steel belt.

2. The steel strip annealing energy-saving insulation box according to claim 1 is characterized in that: The outer surface of the box body is covered with thermal insulation cotton.

3. The steel strip annealing energy-saving insulation box according to claim 1 is characterized in that: The first heat conducting pipe and the second heat conducting pipe are respectively bent coils.

4. The steel strip annealing energy-saving insulation box according to claim 1, characterized in that: A lifting drive device connected to the second heat storage shell is arranged on the top of the box body.

5. The energy-saving and heat-insulating box for annealing steel strip according to claim 4, characterized in that: The lifting drive device adopts an oil cylinder.

6. The steel strip annealing energy-saving insulation box according to claim 1, characterized in that: The box body is provided with guide frames located on both sides of the first heat storage shell, and the guide frames are provided with guide rollers.

7. The steel strip annealing energy-saving insulation box according to claim 1, characterized in that: The box body is provided with a heat insulating pad block located below the first heat storage shell.

8. The steel strip annealing energy-saving insulation box according to claim 1, characterized in that: A guide sleeve is arranged on the top of the box body, and a guide rod penetrating the guide sleeve is arranged on the top of the second heat storage shell.

9. The steel strip annealing energy-saving insulation box according to claim 1, characterized in that: A heat conduction plate extending downward into the heat conduction oil is arranged on the top of the inner cavity of the first heat storage housing, and a through hole corresponding to the second heat conduction pipe is arranged on the heat conduction plate.

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