Sealing structure for electrode contact element of calcium carbide furnace

Abstract

The utility model relates to the technical field of electrode sealing structures, in particular to a calcium carbide furnace electrode contact element sealing structure which comprises an electrode shell, a bottom ring and contact elements, the bottom ring is arranged at the lower end of the electrode shell, a plurality of contact elements are arranged on the inner side of the lower end of the electrode shell, and castable is arranged between the contact elements and the inner side of the electrode shell. The structure is reasonable and compact, the use is convenient, the castable is poured and solidified on the outer side of the contact element on the electrode contact element, the electrode shell is compacted, the contact element is sealed, and the problem that the yield is influenced by power failure maintenance caused by the fact that the electrode shell is deformed and rolled up due to the fact that high temperature in a calcium carbide furnace moves upwards from gaps of the contact element is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrode sealing structures, and is a sealing structure for electrode contact elements of an electric calcium carbide furnace. Background Art

[0002] The electrodes of an electric calcium carbide furnace play a crucial role in the normal production of the electric calcium carbide furnace. Due to large fluctuations in raw materials among different manufacturers, abnormal fluctuations occur in the production data of the electric calcium carbide furnace when entering the furnace. Since the electrodes of the electric calcium carbide furnace are made of 10-mm steel plates into cylinders for adding electrode paste to meet the production requirements, the electrodes are surrounded by 12 groups of contact elements for conducting electricity, and the electrodes are pressed and released to promote the production of calcium carbide in the electric calcium carbide furnace. However, when entering the furnace, due to the high temperature in the furnace and changes in the quality of raw materials, the electrode shells located in the electric calcium carbide furnace are warped to varying degrees, resulting in the inability to meet normal production due to the influence on electrode pressing and releasing, and the electric calcium carbide furnace is forced to stop for maintenance, affecting the production capacity of the electric calcium carbide furnace. Moreover, during the power outage of the electric calcium carbide furnace, it affects the safety risk of personnel, the maintenance cost is high, and the labor force of employees is increased. The triangular area of the original electrode contact element was filled with rock wool, but the rock wool would move upward during the repeated pressing and releasing of the electrode, resulting in seal failure, and the high temperature would move upward from the furnace, causing the electrode shell to burn and deform, still unable to solve the problem of electrode shell warping. Summary of the Invention

[0003] The utility model provides a sealing structure for electrode contact elements of an electric calcium carbide furnace, which overcomes the above-mentioned deficiencies of the prior art and can effectively solve the problem that the existing electrode shell is warped due to the influence of high temperature, resulting in shutdown for maintenance and affecting the output.

[0004] The technical solution of the utility model is realized by the following measures: a sealing structure for electrode contact elements of an electric calcium carbide furnace, including an electrode shell, a bottom ring, and contact elements. A bottom ring is provided at the lower end of the electrode shell, and a plurality of contact elements are provided inside the lower end of the electrode shell. There is castable between the contact elements and the inner side of the electrode shell.

[0005] The following is a further optimization and / or improvement of the above-mentioned technical solution of the utility model:

[0006] Preferably, the castable is corundum wear-resistant refractory plastic.

[0007] Preferably, phosphoric acid is mixed in the castable.

[0008] Preferably, it further includes rock wool, and rock wool is provided between the castable and the contact elements.

[0009] The structure of the utility model is reasonable and compact, and is convenient to use. The castable is used to pour and solidify on the outside of the contact elements in the electrode contact elements, compact the electrode shell, seal the contact elements, and avoid the problem that the high temperature in the electric calcium carbide furnace moves upward from the gaps of the contact elements, causing the electrode shell to deform and curl, resulting in power outage for maintenance and affecting the output. Brief Description of the Drawings

[0010] Attached Figure 1 This is a schematic diagram of the front view partial sectional structure of Embodiment 1 of the present utility model.

[0011] The codes in the attached drawings are respectively: 1 is the electrode shell, 2 is the bottom ring, 3 is the contact element, 4 is the castable, and 5 is the rock wool. Specific embodiments

[0012] The present utility model is not limited by the following embodiments, and the specific implementation manners can be determined according to the technical solutions of the present utility model and the actual situation.

[0013] In the present utility model, for the convenience of description, the description of the relative position relationship of each component is carried out according to the layout mode of the attached drawings of the specification. Figure 1 For example, the position relationships such as front, rear, upper, lower, left, and right are determined according to the layout direction of the attached drawings of the specification.

[0014] The present utility model will be further described below in conjunction with the embodiments and the attached drawings:

[0015] Embodiment 1: As shown in the attached drawings Figure 1 The electrode contact element sealing structure of the calcium carbide furnace includes an electrode shell 1, a bottom ring 2, and a contact element 3. A bottom ring 2 is provided at the lower end of the electrode shell 1, and a plurality of contact elements 3 are provided inside the lower end of the electrode shell 1. There is a castable 44 between the contact element and the inner side of the electrode shell 1.

[0016] The electrode shell 1 is located inside the calcium carbide furnace. The contact element 3 is sealed by the castable 4 to prevent the high temperature in the furnace from rising upwards. Moreover, the castable 4 can compact the lower side of the electrode shell 1 to prevent the lower end of the electrode shell 1 from curling outwards, thereby reducing the failure rate of the calcium carbide furnace equipment, reducing the maintenance frequency and maintenance cost, reducing the safety risk of operating personnel, and increasing the calcium carbide output.

[0017] According to actual needs, the above electrode contact element sealing structure of the calcium carbide furnace can be further optimized or / and improved:

[0018] Embodiment 2: As shown in the attached drawings Figure 1 The castable 4 is a corundum wear-resistant refractory plastic. The corundum wear-resistant refractory plastic has excellent characteristics such as good wear resistance and high strength.

[0019] Embodiment 3: As shown in the attached drawings Figure 1 Phosphoric acid is mixed in the castable 4. By adding phosphoric acid, the strength and hardness of the castable 4 are improved.

[0020] Embodiment 4: As shown in the attached drawings Figure 1As shown in the figure, it further includes rock wool 5, and rock wool 5 is provided between the castable 4 and the contact element 3. In order to avoid the generation of gaps around the contact element 3 due to the shrinkage of the castable 4, through the setting of rock wool 5, the surrounding of the contact element is further sealed, reducing the risk of high temperature escaping from the furnace.

[0021] The above technical features constitute the embodiments of the present utility model, which have strong adaptability and implementation effects. Non-essential technical features can be increased or decreased according to actual needs to meet the requirements of different situations.

Claims

1. A sealing structure for an electrode contact element of an electric calcium carbide furnace, characterized in that It includes an electrode shell, a bottom ring, and contact elements. A bottom ring is provided at the lower end of the electrode shell, and several contact elements are provided on the inner side of the lower end of the electrode shell. There is a castable between the contact elements and the inner side of the electrode shell.

2. The sealed structure of the electrode contact element of the calcium carbide furnace according to claim 1, characterized in that The castable is a corundum wear-resistant refractory plastic.

3. The sealed structure of the electric arc furnace electrode contact element according to claim 1 or 2, characterized in that Phosphoric acid is mixed in the castable.

4. The sealed structure of the contact element of the calcium carbide furnace electrode according to claim 1 or 2, characterized in that It further includes rock wool, and rock wool is provided between the castable and the contact elements.

5. The sealed structure of the electrode contact element of the calcium carbide furnace according to claim 3, characterized in that It further includes rock wool, and rock wool is provided between the castable and the contact elements.

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