A kind of energy-saving cracking furnace

Abstract

The invention provides an energy-saving cracking furnace which is high in utilization rate of energy and long in service life. The energy-saving cracking furnace comprises a furnace body, a plurality of high temperature resisting infrared radiation boards are detachably installed on the inner wall of a hearth of the furnace body, the face, facing the interior of the hearth, of each high temperature resisting infrared radiation board is provided with an infrared radiation layer, the face, facing the wall of the hearth, of each high temperature resisting infrared radiation board is provided with a thermal insulation layer, the infrared radiation layers are made of silicon carbide boards, and the thermal insulation layers are ceramic fiber blankets. The high temperature resisting infrared radiation boards with the thermal insulation layers are installed on the inner wall of the furnace, so that absorbed energy is evenly radiated to products needing to be sintered. The thermal insulation layers are arranged on the backs of the radiation boards, so that heat is prevented from being transmitted to the furnace wall, and energy is transmitted to the products needing to be sintered in a radiation mode as much as possible. By means of the high temperature resisting infrared radiation boards, the service life of the furnace is prolonged, economic benefits are improved, the requirement for the level of the quality of fireproofing materials of the furnace wall can be reduced, and the construction cost of the furnace is lowered.

Description

technical field [0001] The invention relates to an energy-saving cracking furnace. Background technique [0002] my country's industrial kilns and industrial boilers are the main body of energy consumption, and industrial kilns generally have low thermal efficiency and relatively large energy waste. In view of the low effective utilization rate of energy and relatively large energy waste in industrial kilns, the main energy-saving measures generally adopted at home and abroad are: (1) use light-weight thermal insulation materials with good thermal insulation effects as much as possible; (2) Adopt far-infrared energy-saving paint spraying technology; (3) waste heat recovery and utilization of flue gas; (4) energy-saving technology of black body radiation elements. [0003] The traditional way is to use light materials with small heat capacity and insulation materials to build furnaces to reduce heat storage and heat dissipation losses. This energy-saving method only "blocks...

AI Technical Summary

Problems solved by technology

[0006] The fundamental weakness of far-infrared coating technology is that the coating is easy to age. During actual use, it will continue to pulverize and fall off or be eroded by airflow. The thermal infrared emissivity will gradually decay, lose the infrared radiation function, and the thermal efficiency will decrease with time.

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