Regenerative combustion system and control method

Abstract

The invention discloses a regenerative combustion system and a control method. The regenerative combustion system comprises a first reversing valve group, a second reversing valve group, a first regenerative combustion group and a second regenerative combustion group which are connected with the first reversing valve group and the second reversing valve group separately, and a controller electrically connected with the first reversing valve group and the second reversing valve group. According to the regenerative combustion system and the control method, heat release and smoke discharge are carried out simultaneously, reversing of air or smoke is stable, a reversing duration time is short, and the fluctuation of a furnace pressure is avoided; moreover, the first regenerative combustion group and the second regenerative combustion group are cooperated to implement uninterrupted continuous combustion, and a flameout phenomenon in the midway is basically avoided; and therefore, the regenerative combustion system is stable and reliable in combustion, low in combustion power, small in furnace temperature fluctuation, and capable of accurately controlling a temperature, and the temperature control accuracy achieves the control level of an electric furnace.

Description

technical field [0001] The invention relates to the field of heat storage combustion, and more specifically, to a heat storage combustion system and a control method. Background technique [0002] Traditional regenerative burners are usually installed on the side of the furnace wall or both sides of the furnace door. The flame is sprayed into the furnace horizontally at an inclination angle of 15 degrees to 20 degrees, and the flame rigidity is relatively high. Alternating high-speed flames sweep across the surface of the molten aluminum, causing layers of waves to continuously destroy the oxide film on the surface of the molten aluminum, forming a new oxide film, which is continuously eroded and destroyed, resulting in oxidation and burning of the molten aluminum holding furnace Intensified, although energy is saved, it causes a waste of molten aluminum resources. Moreover, when the traditional regenerator burners alternate directions, a large amount of air and flue gas su...

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Problems solved by technology

[0003] Based on this, the present invention aims to overcome the disadvantages of waste of aluminum resources and large fluctuations in furnace pressure caused by the exchange of air and flue gas in the prior art, and provides a regenerative combustion system and control method

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