For enamel manufacturers, metal substrates, enamel frits, equipment and facilities, labor, energy consumption, etc. all require a huge cost investment. How to save energy consumption on the premise of ensuring the quality of enamel products is a problem that enamel manufacturers need to consider. 70%~80% of the total energy consumption of enamel enterprises is used in firing furnaces. To achieve the effect of energy saving and consumption reduction, the following aspects can be considered:

1. Reform process

To reduce the firing temperature, low-temperature enamel can be used; new technology is used to study the use of direct-on enamel frit or improve it to two sprays and one firing.

2. Improve combustion efficiency

Adopt advanced burner, switch to flat flame burner and preheat burner; increase combustion air temperature, fuel preheat to 80~130℃; improve combustion efficiency, increase air preheater; fuel magnetization, speed 0.5m at 0 . It is suitable for heavy oil to pass through the 35T strong magnetic field; increase the radiation surface, choose the resistance band, and choose the appropriate furnace structure.

3. Reduce furnace wall heat loss

Adopt new thermal insulation material, choose aluminum silicate fiber composite furnace lining; reduce heat dissipation area, optimize furnace type and structural design; improve sealing performance, reduce refractory material gap; reduce heat flow overflow, hot air curtain can be installed, and can be adjusted according to the size of the product Save the furnace door, improve the sealing performance of hot air, strengthen the sealing of the observation door; reduce the line speed and increase the loading capacity.

4. Reduce flue gas heat loss

Control excess air, oxygen content measurement flow control; micro positive pressure operation, adjust flue gate or install furnace pressure control device.

To sum up, some energy-saving measures have relatively large investment, and some need to change the furnace body, which can be comprehensively considered when the furnace is overhauled. In addition, it is necessary to consider the economic benefits of energy-saving investment, calculate the energy-saving rate and the payback period of investment costs, strengthen planning and scheduling, organize production efficiently, strengthen the maintenance and repair of kilns, and strictly operate procedures, all of which basically do not require investment. Energy saving effect can be achieved.