(1) Control fuel combustion to achieve the control of furnace temperature and air-fuel ratio.  Pulsed combustion technology has been widely used in recent years.  The pulse combustion controller takes the high speed burner as the control object, when the fuel quantity changes, guarantees the ejection gas to flow at high speed.  Change quantity control time control, with small fire as long fire, with control fire output time to control the temperature rise rate.  This control mode is in the opening of the furnace debugging will be small fire, fire combustion of the air/fuel ratio can be set appropriately, heating process does not need dynamic control of the air/fuel ratio, only to control the fuel and combustion air pressure stability, which greatly simplifies the control system composition, reduce the cost of furnace construction.  However, the deviation between the actual furnace temperature and the set temperature is large in the pulse-controlled high speed combustion system. The deviation between the furnace temperature and the set temperature will be significantly reduced if the pulse time is shortened.  
 

(2) Control the furnace temperature curve.  On the basis of controlling fuel combustion, the furnace temperature curve (process heating curve) is controlled.  
 

(3) Control furnace pressure.  It can ensure the stability of the furnace working condition, reduce the suction of cold air into the furnace, resulting in lower furnace temperature or furnace fire phenomenon.  The sealing of furnace door, furnace car and furnace body is the difficulty of flame furnace sealing. The application of aluminum silicate fiber provides favorable conditions for solving furnace sealing.  The soft and elastic characteristics of aluminum silicate fiber are used to make a rigid and flexible sealing surface, which is pressed by spring or cylinder to make the furnace a sealing body.  Furnace sealing is the prerequisite and condition to control the stability of furnace pressure.  
 

(4) Computer control of the furnace to have some basic conditions, such as advanced combustion device, waste heat recovery, furnace body structure and building materials reasonable, otherwise even if the use of computer control will not get satisfactory results.  Computer process control of industrial furnace is one of the effective measures to improve heating quality, reduce environmental pollution, save energy and improve production management.