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Elastic adjustment electrode sealing device for airtight electric furnace

A sealing device and elastic technology, which is applied in the field of metallurgical industry, can solve the problems of poor sealing, frequent damage and replacement of refractory bricks, high maintenance costs, etc., and achieve the effect of high reliability, strong self-adaptive ability, and guaranteed sealing effect

Active Publication Date: 2017-08-22
XIAN ELECTRIC FURNACE INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to manufacturing and installation errors and the deviation of verticality during electrode operation, the seal is not tight, and the contact seal makes the refractory bricks used for sealing frequently damaged and replaced, and the maintenance cost is high.

Method used

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  • Elastic adjustment electrode sealing device for airtight electric furnace
  • Elastic adjustment electrode sealing device for airtight electric furnace

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Embodiment Construction

[0027] The present invention will be described in detail below in combination with specific embodiments.

[0028] The elastic regulating electrode sealing device for a closed electric furnace according to the present invention comprises a spherical upper seat 5 and a spherical lower seat 6 which are butted up and down, connected by connecting bolts 16 uniformly arranged around the circumference of the butt joint and No. 2 adjusting nut 18, and the upper and lower connecting bolts 16 Covered with No. 2 compression spring 17, the adjustment of the up and down distance can be realized. The contact surfaces of the spherical upper seat 5 and the spherical lower seat 6 are provided with a graphite powder coating to prevent the spherical surface from sticking and improve sliding conditions.

[0029] The top of the spherical seat 5 is covered by the pressure plate 1 and fixed by the bolts and nuts 2 arranged around the circumference. The inside of the spherical seat 5 traverses into ...

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PUM

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Abstract

The invention relates to an elastic regulating electrode sealing device for a closed electric furnace. The electrode sealing device used in the existing airtight electric furnace is fixed to the furnace cover, the sealing is not tight, and frequent maintenance is required. The invention includes a spherical upper seat and a spherical lower seat which are butted up and down. The bottom surface of the spherical lower seat is spherical and is covered with a water-cooled furnace cover; There are prefabricated upper sleeve bricks in the upper seat, and prefabricated lower sleeve bricks in the spherical surface seat of the lower half of the air duct; the spherical surface seat and the spherical lower seat form a sealed space, and the graphite electrode penetrates the water-cooled furnace cover from the axis of the space. The invention adopts nitrogen non-contact sealing, eliminates the deviation of verticality during electrode operation, and has the advantages of strong self-adaptability and high reliability, so that the electrode sealing device can adapt to vibration and deflection during electrode operation.

Description

technical field [0001] The invention belongs to the technical field of metallurgical industry, and in particular relates to an elastic regulating electrode sealing device for a closed electric furnace. Background technique [0002] Electric furnaces for smelting calcium carbide and yellow phosphorus are required to be micro-positive pressure sealed furnaces, so the structure and form of the electrode sealing device will affect its working effect. [0003] The existing closed electric furnace uses an electrode sealing device to fix the furnace cover, and adopts the form of refractory bricks and springs to tighten, and the refractory bricks and electrodes are contacted and sealed. Due to the manufacturing and installation errors and the deviation of the verticality during the electrode operation, the seal is not tight, and the contact seal makes the refractory bricks used for sealing frequently damaged and replaced, and the maintenance cost is high. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D11/10F27D9/00
Inventor 任茂胜
Owner XIAN ELECTRIC FURNACE INST