TWM590075U - Casting equipment for steel continuous casting process - Google Patents

Abstract

The casting device of the steelmaking continuous casting process in this creation includes a steel drum, a steel liquid distributor, a gas-tight pipe and a conical cover plate. The steel drum is used to contain molten steel, and there are first-class steel nozzles under it. The airtight pipe is arranged above the steel liquid distributor. The conical cover plate is arranged above the airtight tube. An opening is opened above and below the conical cover plate, wherein the upper opening is larger than the lower opening. The molten steel flowing out of the steel nozzle can flow in from the upper opening of the conical cover plate, and flow out from the lower opening of the conical cover plate into the molten steel distributor. In the start-up stage of continuous casting, in addition to introducing a large amount of argon gas into the gas-tight pipe and the molten steel distributor to avoid the secondary oxidation of the molten steel in the molten steel distributor, the steel casting and continuous casting process casting device of this creation can also be used The conical cover plate is placed above the airtight tube to reduce the chance of outside air entering the steel distributor.

Description

Casting device for steel-making continuous casting process

This creation relates to a casting device for a steel-making continuous casting process, and more particularly to an airtight device for improving the casting stage of a continuous casting machine.

In the production process of continuous casting in steelmaking, the molten steel flows into the molten steel distributor through the steel drum, and finally enters the mold, and then pulls out the mold, and gradually solidifies completely into a steel embryo. The gas tightness of the steel liquid distributor is very important in the continuous casting process, especially the junction of the steel drum and the steel liquid distributor has the greatest influence on the air tightness.

The molten steel is transferred from the steel drum to the molten steel distributor. Generally, long casting nozzles or airtight pipes are used. Before the casting starts, argon gas is introduced into the gas-tight pipe and the steel liquid distributor to prevent the steel liquid from contacting the air and causing secondary oxidation.

However, although argon gas was introduced into the gas-tight pipe and the liquid steel distributor before the start of casting, the opening above the gas-tight pipe would cause the oxygen concentration in the steel liquid distributor to be restricted to a limited extent, resulting in a lack of airtightness during the casting stage. good.

In view of this, there is a need to propose a solution to solve the above problems.

An object of the present invention is to provide a casting device for a steelmaking and continuous casting process, which can solve the problem of poor airtightness in the casting stage of traditional continuous casting and casting operations, thereby maintaining the quality of molten steel.

According to the above purpose of this creation, a casting device for steel-making continuous casting process is proposed. The casting device of the steelmaking continuous casting process includes a steel drum, a steel liquid distributor, an airtight tube and a conical cover plate. The steel drum is used to contain molten steel, and a first-class steel nozzle is arranged under the steel drum. The airtight tube is arranged above the steel liquid distributor. The conical cover plate is arranged above the airtight tube. An opening is opened above and below the conical cover plate, the upper opening is larger than the lower opening, wherein the molten steel flowing out of the steel nozzle can flow in from the upper opening of the conical cover plate, and It flows out from the lower opening of the conical cover plate into the molten steel distributor.

In the start-up stage of continuous casting, in addition to introducing a large amount of argon gas into the gas-tight pipe and the molten steel distributor to avoid the secondary oxidation of the molten steel in the molten steel distributor, the steel casting and continuous casting process casting device of this creation can also be used The conical cover plate is placed above the airtight tube to reduce the chance of outside air entering the steel distributor.

In order to make the above and other purposes, features and advantages of this creation more obvious, the following will be accompanied by the accompanying drawings, which are described in detail below. In addition, in the description of this creation, the same components are denoted by the same symbols, which are described here first.

Referring to FIG. 1, the casting device of the steelmaking continuous casting process of the present creation includes a steel drum 110, a steel liquid distributor 120, a gas-tight tube 130 and a conical cover plate 140.

The steel drum 110 is used to contain molten steel, and a first-class steel nozzle 112 is provided below it. The molten steel distributor 120 is disposed below the steel drum 110 to receive the molten steel flowing from the steel nozzle 112 of the steel drum 110 for continuous casting operation. The gas-tight tube 130 is disposed above the molten steel distributor 120 and below the molten steel nozzle 112, and argon gas is passed therein to prevent secondary oxidation from occurring when molten molten steel flows into the molten steel distributor 120. The tapered cover plate 140 is placed in the upper part of the airtight tube 130, which can increase the airtightness effect during the casting stage.

Referring to FIG. 2, the tapered cover plate 140 is funnel-shaped, and has a circular opening above and below, wherein the upper opening is larger than the lower opening, and the filled sand and molten steel flowing from the steel nozzle 112 will flow from the cone The cover plate 140 flows into the upper opening and flows out from the lower opening into the molten steel distributor 120. In one embodiment, the tapered cover plate 140 can be made of high temperature resistant metal and placed above the airtight tube 130 before each casting.

Please refer to Fig. 3, according to the casting device of the steelmaking continuous casting process of this creation, the conical cover plate is placed above the airtight pipe before each casting, which can reduce the oxygen concentration in the steel liquid distributor to close to 0%. Significantly improved the airtight effect.

Although this creation has been disclosed with the foregoing examples, it is not intended to limit this creation. Anyone with ordinary knowledge in the technical field to which this creation belongs can make various changes and modifications without departing from the spirit and scope of this creation. Therefore, the scope of protection of this creation shall be deemed as defined by the scope of the attached patent application.

110‧‧‧Sheng steel barrel 112‧‧‧Liquid steel nozzle 120‧‧‧Steel liquid distributor 130‧‧‧Tight pipe 140‧‧‧Cone cover

Fig. 1 is a schematic diagram of the casting device of the steelmaking continuous casting process of the creation. Fig. 2 is a perspective view of the conical cover plate of the casting device of the steelmaking continuous casting process of the creation. Figure 3 shows the actual airtight effect of the casting device of the steelmaking continuous casting process of this creation.

110‧‧‧Sheng steel barrel

112‧‧‧Liquid steel nozzle

120‧‧‧Steel liquid distributor

130‧‧‧Tight pipe

140‧‧‧Cone cover

Claims (3)

A casting device for a steel-making continuous casting process, comprising: a steel drum for containing molten steel; a first-class steel nozzle is arranged under the steel drum; a steel liquid distributor; and a gas-tight pipe, which is arranged in the steel liquid Above the distributor; and a conical cover plate, which is arranged above the airtight tube, and an opening is opened above and below the conical cover plate respectively, the upper opening is larger than the lower opening, wherein the flow steel The molten steel flowing out of the nozzle can flow in from the upper opening of the conical cover plate and flow out from the lower opening of the conical cover plate into the molten steel distributor. The casting device of the steel-making continuous casting process as described in item 1 of the patent application scope, wherein the tapered cover plate is made of a metal with high temperature resistance. The casting device of the steelmaking continuous casting process as described in item 1 of the patent application scope, wherein the upper opening and the lower opening of the tapered cover plate are circular.

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