Bell-type furnace coil base sealing ring protection device

Abstract

The utility model discloses a furnace platform sealing ring protection device of a bell-type furnace, belongs to the technical field of bell-type annealing furnaces, and solves the problems that a sealing ring is easy to burn out during high-temperature annealing of an existing bell-type annealing furnace, and medium leakage is caused. A sealing ring is arranged at the bottom of the coil base, the protection cover is arranged on the upper surface of the sealing ring in a surrounding mode, a cold water pipeline and a cold air pipeline are arranged in the protection cover, a water inlet pipe is arranged at one end of the cold water pipeline, and a water return pipe is arranged at the other end of the cold water pipeline. The cold air pipe is provided with a plurality of air outlets which are arranged along the circumference of the protective cover. The sealing ring is simple in structure and stable to use, internal medium leakage after the sealing ring is burnt out is avoided, and the safety risk of medium leakage caused by burning out of the sealing ring in the annealing process is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of cover type annealing furnace, and particularly relates to a cover type furnace table sealing ring protection device. BACKGROUND

[0002] The cover type annealing furnace is composed of a heating cover, an inner cover, a furnace table and a cooling cover. The heat treatment process of a steel coil is carried out in the inner cover. In the heating stage of the heat treatment process, the heating cover is buckled on the inner cover. When the heating process of the steel coil is completed, the heating cover is moved to another furnace table on which a material is loaded and the inner cover is buckled. The cooling cover is buckled on the inner cover of the furnace table from which the heating cover is removed (a new heating cycle is started). The cooling cover and the inner cover are successively lifted away, and the steel coil is lifted to a final cooling table for final cooling. The maximum annealing temperature is 750 DEG C. In the annealing process, the inner cover is buckled on the furnace table, and eight hydraulic clamps are locked. The inner cover and the furnace table are tightly sutured by means of a furnace table sealing ring.

[0003] At present, in order to avoid the burning loss of the sealing ring during the annealing process, the EBNER cover type furnace is designed with a device cooling water line on the furnace table for cooling the sealing ring. However, only the lower part of the sealing ring can be cooled, and the cooling effect is not good. Since the annealing temperature of some newly developed steel grades reaches 745 DEG C, and the cycle is long, the upper part of the sealing ring is easily burned and deformed during the operation process, causing medium leakage and great safety hazards. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a cover type furnace table sealing ring protection device to solve the problem of easy burning loss of the sealing ring during high-temperature annealing of the existing cover type annealing furnace, causing medium leakage.

[0005] The technical scheme of the utility model is as follows: a cover type furnace table sealing ring protection device is arranged at the bottom of the furnace table and comprises a protection cover which surrounds the upper surface of the sealing ring. The protection cover is internally provided with a cold water pipeline and a cold air pipeline. One end of the cold water pipeline is provided with a water inlet pipe, and the other end of the cold water pipeline is provided with a water return pipe. The cold air pipeline is connected with an air inlet pipe. A plurality of air outlets are arranged on the cold air pipeline along the circumference of the protection cover.

[0006] As a further improvement of the utility model, hand valves are arranged on the water inlet pipe and the water return pipe to control the flow rate of the water inlet pipe and the water return pipe after being opened.

[0007] The utility model discloses beneficial effect: the utility model discloses through the inner cover optimization is the protective cover, through the cold water pipeline and the cold air pipeline synchronous cooling, makes the sealing washer can effectively cool down, prevents sealing washer from appearing burnout phenomenon when high temperature annealing, avoids sealing washer because burns and causes the medium leakage of cover type annealing furnace inside, the utility model discloses still through the flow of hand valve control water inlet pipe and return pipe after opening, the cooling effect is adjusted conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0008] Fig. 1 It is the structural schematic diagram of the utility model;

[0009] Fig. 2 It is the installation schematic diagram of the utility model.

[0010] In the drawing: 1, furnace table;2, sealing washer;3, protective cover;6, cold water pipeline;7, water inlet pipe;8, return pipe;9, hand valve;10, cold air pipe;11, air inlet pipe;12, air outlet. DETAILED DESCRIPTION

[0011] The utility model makes further detailed explanation in combination with the drawings and specific implementation.

[0012] As Figs. 1-2 Shown, a cover type furnace furnace table sealing washer protection device is equipped with sealing washer 2 at the bottom of furnace table 1.

[0013] A cover type furnace furnace table sealing washer protection device, including protective cover 3, the upper surface of protective cover 3 is equipped with sealing washer 2, and the inside of protective cover 3 is equipped with cold water pipeline 6 and cold air pipeline 10, one end of cold water pipeline 6 is equipped with water inlet pipe 7, the other end of cold water pipeline 6 is equipped with return pipe 8, and cold air pipe 10 is connected with air inlet pipe 11, a plurality of air outlets 12 are arranged on cold air pipe 10, and the air outlets 12 are arranged along the circumference of protective cover 3.

[0014] Hand valve 9 is arranged on water inlet pipe 7 and return pipe 8, and the flow after opening of water inlet pipe and return pipe is controlled through hand valve 9.

[0015] When using, the protective cover 3 is buckled on the sealing washer 2, so that the side plate 4 is tightly connected with the sealing washer 2, the sealing washer 2 is cooled, the water inlet pipe 7 and the air inlet pipe 11 are connected with the water pump and the air pump respectively, the cooling water is introduced into the cold water pipeline 6, the cooling air is introduced into the cold air pipeline 10, the cooling water takes out heat through the cold water pipeline 6, the cooling water after heat absorption is discharged through the return pipe 8, the flow after opening of the water inlet pipe 7 and the return pipe 8 can be controlled through the hand valve 9, the cooling air further cools the sealing washer 2 through the cold air pipeline 11, the cooling air after heat absorption is discharged through the air outlet 12, and the sealing washer 2 is cooled.

Claims

1. A cover furnace base sealing ring protection device, a sealing ring (2) is arranged at the bottom of the furnace base (1), characterized in that: The protective cover (3) is arranged around the upper surface of the sealing ring (2), and the inside of the protective cover (3) is provided with a cold water pipeline (6) and a cold air duct (10).

2. A cover furnace base sealing ring protection device according to claim 1, characterized in that: The water inlet pipe (7) and the water return pipe (8) are both provided with a hand valve (9).

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