Submerged arc furnace shell protection device

Abstract

The utility model provides a submerged arc furnace shell protection device which comprises a bottom plate, a first vertical plate and a second vertical plate are symmetrically arranged on the two sides of the bottom plate, a connecting plate is arranged above the bottom plate, the bottom plate, the first vertical plate, the second vertical plate and the connecting plate jointly define a closed cavity, a supporting ring is arranged at the top of the connecting plate, and the supporting ring is connected with the bottom plate. And the two are connected through a rib plate. According to the utility model, the durability and safety of the furnace shell and the furnace body can be improved, the maintenance cost is reduced, the continuous and stable operation of the submerged arc furnace is ensured, rigid damage caused by external force impact can be effectively prevented, and the service life of the furnace shell is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining equipment and relates to a shell protection device of a submerged arc furnace. Background Art

[0002] During actual operation, the shell of an electric arc furnace faces multiple challenges, including physical impact and high-temperature corrosion. Physical impact, such as from charging tools and the addition of raw materials, significantly shortens the furnace's service life, increasing operating costs. Existing electric arc furnaces use a separate anti-collision ring design, which can easily shift position even with minor impacts and easily fall off during use, making inspection and maintenance difficult. This increases maintenance costs and downtime. Furthermore, displacement of the anti-collision ring can easily expose the gap between the furnace body and the smelting platform, causing charge and debris to accidentally fall onto the smelting platform, leading to poor sanitation in the furnace area. Utility Model Content

[0003] The purpose of the utility model is to provide a protective device for the shell of an ore-fired furnace in response to the problems existing in the prior art, so as to solve the problem that the existing anti-collision ring is easily displaced after being hit, resulting in the gap between the furnace body and the smelting platform being exposed. If the charge and debris on the smelting platform accidentally fall, it will cause poor hygiene in the area in front of the furnace.

[0004] To this end, the present invention adopts the following technical solutions:

[0005] A furnace shell protection device for an electric arc furnace includes a base plate, a first vertical plate and a second vertical plate symmetrically provided on both sides of the base plate, a connecting plate provided between the first vertical plate and the second vertical plate, the base plate, the first vertical plate, the first vertical plate and the connecting plate together form a closed cavity, a support ring is provided on the top of the connecting plate, and the two are connected by a rib plate.

[0006] Furthermore, the bottom plate, the first vertical plate, the second vertical plate and the connecting plate together enclose a closed cavity, the cross section of which is a right-angled trapezoid; and the length of the first vertical plate is smaller than that of the second vertical plate.

[0007] The beneficial effects of the present invention are:

[0008] The utility model can effectively disperse the impact force of the collision, reduce damage to the furnace body of the electric arc furnace, reduce the risk of accidents, reduce downtime due to equipment damage, improve the reliability and stability of the electric arc furnace, and thus improve production efficiency and output; at the same time, the utility model can reduce the impact and vibration of the furnace body, help maintain the stability and consistency of the production process, and thus improve the quality and quality stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a side structural diagram of the present utility model;

[0010] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model.

[0011] In the figure, 1-bottom plate, 2-first vertical plate, 3-first vertical plate, 4-connecting plate, 5-rib plate, 6-support ring. DETAILED DESCRIPTION

[0012] The technical solution of the present invention is described below in conjunction with the accompanying drawings and implementation methods.

[0013] like Figure 1 and 2 As shown, a furnace shell protection device of an electric arc furnace includes a base plate 1, a first vertical plate 2 and a second vertical plate 3 are perpendicularly provided on both sides of the base plate 1, and a connecting plate 4 is provided between the first vertical plate 2 and the second vertical plate 3; specifically, the length of the first vertical plate 2 is less than the length of the second vertical plate 3; the base plate 1, the first vertical plate 2, the second vertical plate 3 and the connecting plate 4 are jointly arranged to form a closed cavity, and the cross-section of the closed cavity is a right-angled trapezoid.

[0014] A support ring 6 is provided on the top of the connecting plate 4. The support ring 6 is a hollow tube with an inner diameter of φ64 and an outer diameter of φ114. The rib plate 5 is used to connect the connecting plate 4 and the support ring 6. A semicircular groove is provided on the top of the rib plate to fix the support ring 6.

[0015] In addition, the present invention adopts an integrated setting, and all components are assembled by welding, and all components are made of Q235B low carbon steel.

[0016] The utility model is used for the protection of an industrial silicon ore-burning furnace, such as a 33000KVA ore-burning furnace, which adopts a rotating furnace body design. The utility model can effectively prevent hard damage caused by the ramming rod of the ramming car being placed too low and colliding with the furnace body, and prevent the problem of raw materials in the furnace sliding to the working platform in front of the furnace due to displacement after the collision. In addition, the inclined structure of the connecting plate 4 can also effectively prevent the residual water caused by cooling and dust suppression on the smelting platform from flowing along the gap to the ore-burning furnace, thereby avoiding safety hazards.

Claims

1. A protective device for a shell of a submerged arc furnace, characterized in that: The invention comprises a bottom plate (1), wherein a first vertical plate (2) and a second vertical plate (3) are symmetrically provided on both sides of the bottom plate (1), a connecting plate (4) is provided between the first vertical plate (2) and the second vertical plate (3), one end of the connecting plate (4) is connected to the first vertical plate (2), and the other end is connected to the second vertical plate (3), a supporting ring (6) is provided on the top of the connecting plate (4), and the two are connected by a rib plate (5).

2. The shell protection device of a submerged arc furnace according to claim 1, characterized in that: The bottom plate (1), the first vertical plate (2), the second vertical plate (3) and the connecting plate (4) are jointly arranged to form a closed cavity, the cross section of which is a right-angled trapezoid.

3. The shell protection device of a submerged arc furnace according to claim 1, characterized in that: The length of the first vertical plate (2) is smaller than the length of the second vertical plate (3).

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