1. Improve fuel combustion.
Fuel has great particularity as an energy source. First, the total amount of resources is limited, and the total amount of fuel is limited, and one day will be exhausted. First
Second, the use of fuel is not repeatable, and the use of fuel is unidirectional and irreversible. Third, the use of energy is inefficient. A certain loss of fuel often occurs during use, and the degree of loss varies according to the method of use and the level of control. Fourth, the fuel will have a negative impact on the environment during the use process. The use of the fuel is often accompanied by the generation of waste, which causes varying degrees of pollution to the environment.
When the fuel is burned in the industrial furnace, it is completed by the burner installed on the industrial furnace, so the performance of the burner is directly related to the fuel consumption of the industrial furnace. Therefore, the performance of the burner should be improved, because only by ensuring that the performance of the burner meets the heating capacity of the industrial furnace and enabling it to have a lower and stable excess air coefficient, can the fuel be used in the process to fully improve the combustion efficiency and make the combustion The device can adapt to the higher temperature combustion air.
2. Optimize the lining structure.
The lining of industrial furnaces can be divided into brick lining, injection lining and fiber lining. At present, most domestic heating furnaces adopt the traditional internal fire brick form, and the heat dissipation and heat storage of the furnace lining can account for 30%-40% of the total energy consumption. The development trend of furnace building materials is high temperature, high strength and light weight. Reasonable selection of furnace lining materials and optimization of the composite furnace lining structure can reduce the heat dissipation of the furnace body and reduce the heat storage loss to achieve a good effect of energy saving. First of all, the thermal conductivity of the sintered injection furnace lining is much smaller than that of the brick lining, and the furnace body has better air-tightness, which can extend the service life and achieve the purpose of energy saving. In recent years, castables have made great progress in variety and quality, which can meet the requirements of high temperature and rapid heat resistance in the furnace. The use of castable lining can save about 3% of energy compared with brick furnaces. Secondly, the internal fire fiber is an ultra-lightweight internal fire material. Its basic performance is low in density and thermal conductivity. The furnace construction of this material can save energy, save materials and increase the production capacity of the furnace. The use of refractory fiber lining can save 7% of energy than brick furnace. The development of refractory fiber products, the refractory fiber can be used at a high temperature of 1200 degrees, thus promoting the use of refractory fiber.
The construction method of refractory fiber can affect its use effect and service life to a large extent, and traditional anchoring methods often cause various problems in use. The new construction method can send the high-pressure air of the fiber cotton out of the spray gun, and mix the bonding agent with the fiber cotton. This method eliminates the joints of the furnace lining, greatly improves its energy-saving effect, and can extend the life of the furnace. The energy-saving effect of infrared energy-saving coatings is very high. This coating can be used on various fuel furnaces with a furnace temperature of 1800 degrees. If it is sprayed on the surface of the furnace lining, a 0.5 mm coating can be formed. The infrared radiation performance of the coating can be used. Play a good effect of increasing heat efficiency and reducing energy consumption.
3. Improve the control level.
Ways to improve the level of control: First, control fuel combustion. Computer control of industrial furnaces needs to achieve a reasonable ratio of furnace temperature, fuel supply, fuel quantity and air quantity. The core of controlling these quantities is the reasonable ratio of fuel. Use the method of measuring the oxygen content in the flue gas to control the ratio. Second, optimize the mathematical model. In order to control the temperature in the furnace, the mathematical model should be reasonably optimized. The mathematical model of the furnace temperature is best to control the temperature in the furnace as a curve to improve the efficiency of fuel use in the furnace.
