CN210305735U - Continuous casting tundish overflow trough easy for deslagging - Google Patents

Abstract

The utility model belongs to the improvement of package overflow launder structure in the middle of the continuous casting, especially a package overflow launder in the middle of the continuous casting of easily arranging sediment, setting up the overflow launder in the middle of the continuous casting on the package, setting up lug, characterized by in the middle of the package both sides: the structure of the overflow groove is an open rectangular overflow groove, the bottom surface of the overflow groove is inclined downwards by 10-15 degrees, the width of the overflow groove is 1.25-1.3 m, and the depth of the overflow groove is 0.8 m. The utility model discloses it is rational in infrastructure, can improve the overflow launder and arrange the sediment performance, improve the purity of molten steel, prevent that the molten steel from spilling over the injury that causes personnel and equipment on every side, can reduce the clearance degree of difficulty, improve work efficiency, improve workman operational environment.

Description

Continuous casting tundish overflow trough easy for deslagging

Technical Field

The utility model belongs to the improvement of a continuous casting tundish overflow groove structure, in particular to a continuous casting tundish overflow groove easy for deslagging.

Background

The main function of the continuous casting tundish overflow groove is to discharge the steel slag in the tundish to a slag pan through the overflow groove, so that the purity of the molten steel is improved; the steel ladle sliding plate is used for discharging molten steel when the steel ladle sliding plate cannot be closed in an accident, prevents surrounding personnel and equipment from being damaged by the overflow of the molten steel, and is one of necessary equipment for ensuring the safety of continuous casting production.

The continuous casting tundish overflow groove is welded into a groove shape by adopting steel plates, and refractory materials are filled in the groove, so that molten steel is prevented from entering the overflow groove and being bonded with the steel plates, and the cleaning is difficult.

The continuous casting tundish overflow groove is welded by adopting steel plates, refractory materials are filled in the groove, the original tundish overflow groove is small in depth, slag is difficult to discharge, and if a steel ladle and a tundish break down, molten steel enters the overflow groove and is bonded with the steel plates, and the cleaning is difficult. The work is labor-consuming and time-consuming, the labor intensity is high, the working environment is severe, and the safe operation of a continuous casting machine is influenced if the work is not cleaned.

There are major problems as follows:

1. the overflow groove of the original tundish is small in depth, difficult in slag discharge and not beneficial to controlling the inclusion of molten steel in the tundish.

2. The steel ladle and the tundish are in failure, molten steel and steel slag in the tundish cannot be discharged through the overflow groove, the cleaning is difficult, the cleaning space is narrow, the labor intensity of workers is high, and the working environment is severe.

3. The cleaning time is long, so that the continuous casting machine cannot run, and the labor productivity is reduced.

4. The influence of high-temperature molten steel on surrounding personnel and equipment causes potential safety hazards.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a package overflow launder in middle of continuous casting of sediment is easily arranged, its is rational in infrastructure, can improve the overflow launder and arrange the sediment performance, improves the purity of molten steel, prevents that the molten steel from spilling over the injury that causes personnel and equipment on every side, can reduce the clearance degree of difficulty, improves work efficiency, improves workman operational environment.

The purpose of the utility model is realized like this: the utility model provides an easily arrange continuous casting tundish overflow launder of sediment, is setting up the overflow launder on the package in the middle of the continuous casting, is setting up lug, characterized by in the middle of the package both sides: the structure of the overflow groove is an open rectangular overflow groove, the bottom surface of the overflow groove is inclined downwards by 10-15 degrees, the width of the overflow groove is 1.25-1.3 m, and the depth of the overflow groove is 0.8 m.

The main improvement content is as follows:

1. the width and the speed of an inlet of an overflow groove of the tundish are increased, a certain gradient is designed, and a layer of refractory material is arranged, so that high-temperature molten steel is not in direct contact with a chute steel plate, and the cleaning difficulty is reduced. After being used, the fireproof material is applied after being cleaned, and then the fireproof material can be used again.

The main improvement effect is as follows:

1. because the inlet of the overflow groove is designed to be a certain gradient, the slag discharge performance of the overflow groove can be improved, and the safety of surrounding personnel and equipment is ensured.

2. The working procedure is simplified. When the residual steel of the overflow groove of the tundish is cleaned, the residual steel can be lifted by using a crane, the operation is simple, and the cleaning time is reduced by about 80%.

3. Because the cleaning is convenient, one overflow trough can be repeatedly used, the production cost is reduced, and the fixed asset cost of a steel plant can be reduced.

4. Because the cleaning difficulty is reduced, the labor intensity of workers is effectively reduced, and the working environment of the workers is greatly improved.

The utility model discloses it is rational in infrastructure, improved the overflow launder and arrange the sediment performance, improved the purity of molten steel, prevented that the molten steel from spilling over the injury that causes personnel and equipment on every side, reduced the clearance degree of difficulty, improved work efficiency, improved workman operational environment.

Drawings

The present invention will be further described with reference to the accompanying drawings, and fig. 1 is a schematic view of the structure of the present invention.

Detailed Description

A continuous casting tundish overflow trough easy for slag discharge is shown in figure 1 and comprises a continuous casting tundish 1 provided with an overflow trough 3, two sides of the tundish 1 are provided with lifting lugs 2, the structure of the overflow trough 3 is an open rectangular overflow trough, the bottom surface of the overflow trough 3 is inclined downwards by 10 degrees to 15 degrees, the width of the overflow trough 3 is 1.25m to 1.3m, and the depth of the overflow trough 3 is 0.8 m. The inner walls and the bottom surfaces of the two sides of the overflow groove 3 are uniformly fixed with a refractory material layer by anchoring nails.

Claims (2)

1. The utility model provides an easily arrange package overflow launder in middle of continuous casting of sediment, is setting up overflow launder (3) including package (1) in the middle of the continuous casting, is setting up lug (2), characterized by in middle package (1) both sides: the structure of the overflow groove (3) is an open rectangular overflow groove, the bottom surface of the overflow groove (3) is inclined downwards by 10 degrees to 15 degrees, the width of the overflow groove (3) is 1.25m to 1.3m, and the depth of the overflow groove (3) is 0.8 m.

2. The utility model provides an easily arrange continuous casting tundish overflow launder of sediment which characterized by: the inner walls and the bottom surfaces of the two sides of the overflow groove (3) are uniformly fixed with a refractory material layer by anchoring nails.

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