Energy-saving heating furnace with black bodies and fibers arranged on furnace lining, and construction method thereof

Abstract

The invention relates to the technical field of industrial furnaces, and specifically relates to an energy-saving heating furnace. The energy-saving heating furnace comprises a furnace body end wall and a furnace top, wherein a first black body energy-saving element is arranged on the furnace top, and a refractory fiber module and a second black body energy-saving element are arranged on the furnace body end wall; the diameter ratio of the first black body energy-saving element to the second black body energy-saving element is (1 to 3): 1, and the second black body energy-saving element arranged on the furnace body end wall penetrates through the refractory fiber module arranged on the furnace body end wall. According to the energy-saving heating furnace, the refractory fiber module is arranged on the furnace body end wall of the heating furnace and matched with the first black body energy-saving element arranged on the furnace top, so that the effect of comprehensively saving energy in the furnace body is achieved. When a furnace temperature is higher than 800 DEG C, heat transfer is mainly based on radiation, and radiation heat transfer is more than 15 times of convection heat transfer and accounts for more than 80% of total heat; and the first black body energy-saving element has a high radiation coefficient and plays a role in fully reflecting radiation downwards at the furnace top, so that efficient recycling for the radiation heat of a workpiece is achieved.

Description

technical field [0001] The invention relates to a heating furnace, in particular to an industrial furnace, in particular to an energy-saving heating furnace provided with a black body element and a fiber heat preservation module, and belongs to the technical field of industrial furnaces. Background technique [0002] State of the art, defects or deficiencies in the art: [0003] Due to the heating conditions required for the production of products, industrial furnaces usually need to be kept in a very high temperature range for a long time, resulting in a huge temperature difference between the furnace and the environment. The high temperature difference directly leads to difficulties in heat preservation of the furnace and serious loss of heat and mass transfer. In order to solve the problem of heat loss in the kiln, the blackbody element energy-saving technology was proposed. According to the blackbody theory, the porous ceramic material is made into a blackbody element wi...

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Problems solved by technology

[0006] However, due to the large weight of the black body element itself and the shape and structure characteristics of the black body element, the black body element cannot completely cover the inner wall of the furnace when it is installed on the inner wall of the furnace. Therefore, the space between the black body elements protects the ability to reflect heat Relatively weak, which leads to some weak points of thermal insulation performance in the kiln using black body energy-saving components, these weak points are the main energy loss of the kiln after the transformation of black body energy-saving components

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