Industrial kiln energy saving technology is an important means to achieve green and low-carbon production in the current industrial field, involving combustion optimization, waste heat utilization, intelligent control and other aspects. The following are some key industrial kiln energy saving technology measures:

1. Combustion optimization technology

High efficiency burner: high speed premixed burner, flat flame burner, regenerative burner, etc., to improve combustion efficiency and reduce fuel consumption.

Oxygen enrichment combustion: by increasing the oxygen concentration in the combustion air, reducing the heat carried away by nitrogen, increasing the flame temperature, and reducing fuel consumption.

Composite combustion technology: the mixed use of coal, biomass fuel, natural gas, etc., to optimize combustion effect and reduce emissions.

2. Waste heat recovery and utilization

Flue gas waste heat recovery: use heat exchanger or waste heat boiler to recover the heat from high temperature flue gas, used for preheating combustion air or drying body, energy saving rate can reach 15%-25%.

Cooling waste heat utilization: such as the tail cooling waste heat of ceramic kilns can be used for body drying or combustion air heating.

3. Intelligent control and automation

Online simulation and holographic monitoring: optimize the operation parameters of furnaces and improve energy efficiency.

Frequency conversion regulation technology: optimize the operating frequency of fan and motor to reduce power waste.

4. Furnace structure and material optimization

Lightweight refractory materials: refractory fiber, nano-porous insulation board and other new materials are used to reduce heat storage and heat loss of the furnace.

Circular furnace design: compared with box furnace, it can improve heat exchange efficiency and reduce heat dissipation.

Sealing and insulation improvement: use soft sealing technology (such as refractory fiber) to reduce heat leakage and improve insulation performance.

5. Process optimization and thermal balance management

Thermal test: analyze the energy consumption distribution through thermal balance test and optimize the process parameters.

Microwave and electric kiln technology: microwave kiln and electric kiln are 40-50% more energy efficient than traditional gas kiln, especially suitable for special ceramic production.

6. Fuel substitution and clean energy

Gas/electricity conversion: Natural gas or electric heating is used to replace coal burning, reducing pollution and improving energy efficiency.

Application of biomass fuel: some industries can use biomass fuel to reduce carbon emissions.

The comprehensive application of these technologies can significantly reduce the energy consumption of industrial kilns and promote the green transformation of industrial production.