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Furnace slope blank die and furnace slope building method of needle-type bottom electrode electric arc furnace

A bottom electrode and electric arc furnace technology, which is applied in the field of furnace manufacturing, can solve the problems of high manufacturing cost, long time consumption, and difficulty in forming the furnace slope of an electrode electric arc furnace, and achieves the effects of ensuring structural strength, avoiding rollover and facilitating processing.

Pending Publication Date: 2020-11-10
DAYE SPECIAL STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, there are difficulties in the manufacture of the electrode electric arc furnace, mainly because the furnace slope of the electrode electric arc furnace is difficult to form and takes a long time, resulting in low manufacturing efficiency and high manufacturing cost of the electrode electric arc furnace

Method used

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  • Furnace slope blank die and furnace slope building method of needle-type bottom electrode electric arc furnace
  • Furnace slope blank die and furnace slope building method of needle-type bottom electrode electric arc furnace
  • Furnace slope blank die and furnace slope building method of needle-type bottom electrode electric arc furnace

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specific Embodiment 2

[0043] The specific embodiment 2 of the furnace slope membrane of the needle-type bottom electrode electric arc furnace of the present invention, the difference between this embodiment and the specific embodiment 1 is that in the specific embodiment 1, the hoisting and matching structure is set on the reducing tube the lifting hole. In this embodiment, lifting lugs are provided on the top of the reducing cylinder, and the lifting lugs cooperate with the lifting device to realize the hoisting of the tire membrane on the furnace slope, and the lifting lugs constitute a lifting matching structure.

specific Embodiment 3

[0044] The specific embodiment 3 of the furnace slope membrane of the needle-type bottom electrode electric arc furnace of the present invention, the difference of this embodiment with respect to the specific embodiment 1 is that in the specific embodiment 1, there are 4 hoisting holes, each hoisting hole along the The circumference of the reducer is uniformly arranged. In this embodiment, there are three hoisting holes, and each hoisting hole is evenly arranged along the circumferential direction of the reducing cylinder.

specific Embodiment 4

[0045] Specific embodiment 4 of the furnace slope membrane of the needle-type bottom electrode electric arc furnace of the present invention, the difference of this embodiment with respect to specific embodiment 1 is that in specific embodiment 1, there are 4 hoisting holes, and each hoisting hole is The circumference of the reducer is uniformly arranged. In this embodiment, there are five hoisting holes, and each hoisting hole is evenly arranged along the circumferential direction of the reducing cylinder.

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Abstract

The invention provides a furnace slope blank die and a furnace slope building method of a needle-type bottom electrode electric arc furnace. The furnace slope blank die of the needle-type bottom electrode electric arc furnace comprises a variable diameter cylinder and a hoisting matching structure, the variable diameter cylinder comprises a small end located at the lower part and a large end located at the upper part, and the outer peripheral surface of the variable diameter cylinder is a furnace slope forming surface; and the hoisting matching structure is arranged on the variable diameter cylinder and used for being matched with a hoisting device to hoist the variable diameter cylinder. Aiming at the prior art, the furnace slope building method of a direct-current electric arc furnace isprovided, and is simple in structure, low in manufacturing cost, long in service life of a furnace lining refractory material and good in using effect.

Description

technical field [0001] The invention belongs to the technical field of furnace manufacture, and in particular relates to a furnace slope membrane of a needle-type bottom electrode electric arc furnace and a furnace slope laying method. Background technique [0002] Needle-type bottom electrode electric arc furnace has attracted more and more attention from the steel industry because the bottom electrode does not require maintenance, the electrode status can be monitored in real time by thermocouples, and the conductive needle has a long service life. Compared with the traditional conductive pot-type electric arc furnace, the expensive conductive brick material at the bottom of the furnace has been replaced by the lower-cost magnesia ramming material. The magnesia ramming material can not only be replaced in a short time during use, but also the furnace lining refractory material It has a longer service life and can effectively reduce operating costs. [0003] However, in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D1/00F27D1/04F27D1/16
CPCF27D1/0043F27D1/16F27D1/04
Inventor 黄国涛夏旺苟陈继红李凯吕文俊姜亚清
Owner DAYE SPECIAL STEEL CO LTD
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