CN205295429U - Crystallizer of electroslag furnace - Google Patents

Abstract

The utility model relates to a steelmaking equipment technical field especially indicates a crystallizer of electroslag furnace, including steel sheet urceolus and red copper inner tube, be equipped with annular gap between steel sheet urceolus and the red copper inner tube, be equipped with the spiral muscle in the annular gap, inboard and the red copper inner tube outer wall fixed connection of spiral muscle, the spiral muscle outside and steel sheet urceolus fixed connection. The utility model discloses an above -mentioned technical scheme's beneficial effect as follows: simple structure, the technique is reasonable, and convenient to use realizes the crystallization through the water cooling, wherein is equipped with the spiral muscle between steel sheet urceolus and the red copper inner tube of crystallizer, through the power of spiral muscle dispersion crystallization production to prevent that the red copper inner tube warp, thereby the life of extension electroslag furnace crystallizer in addition, forms the flowing water passageway between the spiral muscle, feasible cooling is more even, thereby has improved the water cooling effect.

Description

A kind of crystallizer of electroslag furnace

technical field

The utility model relates to the technical field of steelmaking equipment, in particular to a crystallizer of an electroslag furnace.

Background technique

At present, the electroslag furnace crystallizer is a necessary supporting equipment for the electroslag furnace equipment to produce electroslag steel ingots. The device is a large copper-steel welded structure working under high temperature conditions. It is composed of a copper inner cylinder, water inlet and outlet pipes, a steel plate outer cylinder, and upper and lower flanges. Between the inner peripheral surfaces of the parts, a steel transition ring is welded, and the inner cylinder, the outer cylinder, the transition ring and the flange together form a closed cooling water cavity, and the cooling water pipes are respectively opened on both sides of the cylinder wall. During the remelting process, the cooling water flows in from the water inlet pipe at the lower part of the crystallizer, passes through the cooling layer between the copper inner tank of the crystallizer and the steel plate shell, and cools the molten steel in the crystallizer according to the process conditions, and controls the crystallization speed of the molten steel to form an electric current. Slag steel ingots, cooling water flows out from the outlet pipe at the upper part of the crystallizer. During smelting, the lower part of the crystallizer is cooled first, resulting in a large temperature change, and the thermal expansion coefficients of the two materials, the copper inner cylinder and the steel transition ring, are different, which causes stress at the welding point, resulting in the lower part of the electroslag furnace crystallizer. It is easily damaged, which reduces the service life. The electroslag furnace crystallizer is expensive because of the material used, and the shape of the copper inner cylinder of the crystallizer is complicated, and the processing is difficult, so the cost is quite expensive. The damage of the electroslag furnace crystallizer is scrapped, which increases production. Increased costs.

Utility model content

The technical problem to be solved by the utility model is to provide a crystallizer of an electroslag furnace, which can reduce the stress at the weld and prolong the service life of the crystallizer of the electroslag furnace.

In order to solve the above technical problems, the embodiment of the utility model provides a crystallizer of an electroslag furnace, which includes a steel plate outer cylinder and a copper inner cylinder, an annular gap is provided between the steel plate outer cylinder and the copper inner cylinder, and the annular A spiral rib is provided in the gap, the inner side of the spiral rib is fixedly connected with the outer wall of the copper inner cylinder, and the outer side of the spiral rib is fixedly connected with the steel plate outer cylinder.

Preferably, a water flow channel is formed between the threads of the spiral rib.

Preferably, the upper end of the outer wall of the steel plate outer cylinder is provided with a water inlet corresponding to the water flow channel, and the lower end of the inner wall of the steel plate outer cylinder is provided with a water outlet corresponding to the water flow channel.

The beneficial effects of the above-mentioned technical solution of the utility model are as follows: simple structure, reasonable technology, convenient use, crystallization is realized through water cooling, wherein a spiral rib is arranged between the steel plate outer cylinder and the copper inner cylinder of the crystallizer, and the crystallization is dispersed through the spiral rib The generated force prevents the deformation of the copper inner cylinder, thereby prolonging the service life of the electroslag furnace crystallizer. In addition, the flow channel is formed between the spiral ribs, which makes the cooling more uniform, thereby improving the water cooling effect.

Description of drawings

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

detailed description

In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, the following will describe in detail with reference to the drawings and specific embodiments.

The utility model provides a crystallizer of an electroslag furnace aiming at the existing deficiencies, as shown in Figure 1, comprising a steel plate outer cylinder 1 and a copper inner cylinder 3, and a steel plate outer cylinder 1 and a copper inner cylinder 3 are provided with The annular gap 2 is provided with a spiral rib 5 inside the annular gap 2, the inner side of the spiral rib 5 is fixedly connected with the outer wall of the copper inner cylinder 3, and the outer side of the spiral rib 5 is fixedly connected with the steel plate outer cylinder 1. Flowing channels are formed between the threads of the spiral ribs 5 . The upper end of the outer wall of the steel plate outer cylinder 1 is provided with a water inlet 4 corresponding to the water flow channel, and the lower end of the inner wall of the steel plate outer cylinder 1 is provided with a water outlet 6 corresponding to the water flow channel.

The above is a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. And retouching should also be regarded as the protection scope of the present utility model.

Claims (3)

1. a crystallizer of electroslag furnace, comprising steel plate outer cylinder and red copper inner cylinder, is characterized in that, is provided with annular gap between described steel plate outer cylinder and red copper inner cylinder, is provided with spiral rib in described annular gap, The inner side of the spiral rib is fixedly connected with the outer wall of the copper inner cylinder, and the outer side of the spiral rib is fixedly connected with the steel plate outer cylinder. 2 . The crystallizer of an electroslag furnace according to claim 1 , wherein a flowing water channel is formed between the threads of the spiral ribs. 3 . 3. The crystallizer of a kind of electroslag furnace according to claim 1, it is characterized in that, the upper end of the outer wall of the steel plate outer cylinder is provided with the water inlet corresponding to the flow channel, and the inner wall lower end of the steel plate outer cylinder is provided with the corresponding The outlet of the water channel.