Industrial high-temperature kiln

Abstract

The invention provides an industrial high-temperature kiln. The industrial high-temperature kiln comprises a kiln body with a hearth arranged inside and hearth walls arranged at the periphery, and is characterized in that hemispherical bulges are arranged on the top wall of the hearth, and hemispherical bulges or semicircular convex pillars are arranged on the side wall of the hearth, so that the surface area of the inner wall of the hearth can be increased by 45% to 50%, and an active effect on reinforcing heat transfer by radiation is achieved; a black body spraying coating is arranged in a matching manner, so that the effect of heat transfer by radiation is relatively remarkable, and energy conservation and efficiency can be facilitated; according to different uses of the high-temperature kiln, the hearth adopting the structure that hemispherical bulges are fully arranged on the inner wall of the hearth is adopted to be applicable to a kiln of which the internal atmosphere is relatively clean and no dust exists; or a mixed hearth adopting the structure that hemispherical bulges are arranged on the top wall and semicircular convex pillars are arranged on the side wall is adopted to be applicable to kilns with more dust inside, so that the problem that dust accumulating on the hearth walls forms slag to be adhered to the hearth walls can be solved, the service life of the kiln can be prolonged advantageously, and the cost can be lowered.

Description

technical field [0001] The invention relates to a furnace, in particular to an industrial high-temperature furnace, which belongs to the technical field of industrial furnaces. Background technique [0002] At present, the furnace linings of widely used industrial furnaces such as heating furnaces, soaking furnaces, and heat treatment furnaces are usually made of refractory bricks or refractory castables. With the development of material technology and furnace technology, most furnaces, Especially for large furnaces, the furnace lining is mostly made of refractory castables and composite fiber materials, which has the characteristics of convenient construction, good thermal insulation effect, and long service life. At present, except for a small number of kilns that use brick arched roofs, the roofs of most kilns are cast hanging straight roofs, and the furnace walls are cast straight furnace walls. Under high temperature conditions, this type of furnace mainly heats the wo...

AI Technical Summary

Problems solved by technology

Under high temperature conditions, this type of furnace mainly heats the workpiece by radiation heat transfer. Therefore, in addition to temperature, the surface area of ​​the inner wall of the furnace and the blackness of the material will have a greater impact on radiation heat transfer.

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