Large arch-shaped porous high-temperature electric furnace top structure
A furnace roof structure and electric furnace technology, applied in the direction of the furnace crown/roof, can solve the problems of easy collapse of the central area and short life, and achieve the effects of saving steel, prolonging the service life, and reducing useless configurations
Active Publication Date: 2015-04-22
洛阳市洛华粉体工程特种耐火材料有限公司
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Problems solved by technology
[0006] In order to solve the problems of short service life and easy collapse of the central area of the large-scale porous high-temperature electric furnace roof, the present invention provides a large-scale arched porous high-temperature electric furnace roof structure
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[0031] As shown in the figure, a large-scale arched porous high-temperature electric furnace roof structure includes an outer steel shell 1 on the side wall of the electric furnace, a wedge-shaped ring-shaped joist 2 fixed on the upper inner wall of the outer steel shell 1 on the side wall of the electric furnace, and a joist 2 fixed on the side wall of the electric furnace. The high-temperature stainless steel support ring 3 placed on the inner wall of the outer steel shell 1 and placed under the wedge-shaped ring joist 2, and the double-layer airtight water-cooled steel ring on the outer wall of the outer steel shell 1 on the side wall of the electric furnace corresponding to the position of the wedge-shaped ring joist 2 Hoop 4, arched refractory castable sitting on high-temperature stainless steel support ring 3, integral furnace roof lining 5, hanging steel frame above furnace lining 5, and furnace lining 5. One or several closed thick-walled high-temperature stainless steel...
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Abstract
A large arch-shaped porous high-temperature electric furnace top structure comprises an electric furnace side wall outer steel shell, a wedge-shaped annular supporting beam, a high-temperature stainless steel supporting ring, a two-layer sealed water-cooling steel hoop, an arch-shaped fire-resistant castable whole furnace top furnace liner arranged on the high-temperature stainless steel supporting ring, a hanging steel frame above the furnace liner, two sealed thick-wall high-temperature stainless steel annular water jackets with different diameters in a high-temperature area in the center of the furnace liner, a water cabinet connected with the high-temperature stainless steel annular water jackets through inflow and outflow water, and a hanging element in the high-temperature area in the center of the furnace liner. By means of the structure, important parts of large heat equipment, which is difficult to be stable, of a large porous electric furnace are integrated with various theories of modern industrial heat equipment design, the structure is formed by combining various new materials and new material application example experience in the prior art, and the structure has the advantages of being safe, stable, long in service life, capable of saving building materials, simple to detect and maintain, capable of saving energy, environmentally friendly and the like.
Description
technical field [0001] The invention relates to a large-scale high-temperature electric furnace used in the field of high-temperature large-scale equipment, in particular to a large-scale arched porous high-temperature electric furnace roof structure. Background technique [0002] In metallurgy and chemical production, more and more large circular electric furnaces are used. The diameter can reach 7 meters, 10 meters or even more than 20 meters, and the weight of the furnace roof lining can reach dozens or even hundreds of tons. Due to the arrangement of electrode holes and multiple feeding holes, smoke exhaust holes, measurement and sampling holes and other process holes on the furnace roof, not only the electrode high-temperature triangle area is formed in the center of the furnace roof, but also the central feeding interference area is formed. Because there are many holes in the central area, the specific surface area of the furnace lining and the holes are similar in ...
Claims
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IPC IPC(8): F27D1/02
Inventor 李朝侠黄河
Owner 洛阳市洛华粉体工程特种耐火材料有限公司