Hot rolling heating furnace and local strengthening heating control method thereof

Abstract

The invention discloses a hot rolling heating furnace; and the hot rolling heating furnace is designed by comprising a furnace tail section, a preheating section, a heating section and a heat average section. The invention also discloses a local strengthening heating control method of the hot rolling heating furnace; an impulse burner is arranged at the preheating section, a constant combustion mode is adopted, the input amount of the impulse burner can be controlled according to the heat demand of the preheating section to make the burner to maintain an optimal combustion state, and the purpose of local strengthening heating can be achieved, so that temperature uniformity of the furnace width direction can be improved, the heating quality can be ensured and the energy saving purpose can be achieved.

Description

technical field

[0001] The invention relates to hot rolling heating technology, more specifically, to a hot rolling heating furnace and a local enhanced heating control method thereof. Background technique

[0002] At present, common hot rolling heating furnaces include: conventional heating furnace, regenerative heating furnace and pulse heating furnace. The regenerative heating furnace has certain advantages in terms of energy saving in the case of using low calorific value gas, uniformity of furnace temperature in the furnace width direction, and reduction of NOX emissions; but for conventional hot rolling, the energy saving effect of the regenerative heating furnace is not obvious, and the emission Smoke temperature is high. The disadvantage of conventional heating furnace flow regulation is that there is a regulation dead zone, and when the temperature fluctuates greatly, the combustion situation becomes worse; conventional burners also have advantages, such as the fla...

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