Energy Saving and Environment Protection of Heat Treatment
Introduction
Heat treatment is a process used to change the physical and chemical properties of the material. It is widely used in various industries, such as automotive, aviation, shipbuilding, machinery manufacturing, chemical, power and other industries, and their energy saving and environmental protection has great significance. This article will explain the energy saving and environmental protection of heat treatment from the aspects of furnace type, heat conduction and heat utilization, heat medium and insulation materials, heat distribution, etc.
Type of Furnace
In terms of the type of furnace, the use of different heating furnaces can achieve different energy-saving and environmental protection effects. For example, resistance furnace energy-saving effect is not obvious, while induction furnace energy-saving effect is relatively high. The circumference of the hot piece should be appropriate, too large circumference increases conduction loss, too small increases convection loss.
Heat Conduction and Heat Utilization
In terms of the heat conduction and heat utilization of heat treatment, heat treatment furnaces cannot work in a self-circulating state and need to be externally supplied with heat energy, so the energy saving and environmental protection effect of heat conduction and heat utilization is relatively important.
When the heat treatment furnace is operating, the heat carried by the hot air should be better guided and guided, and eventually enter the furnace, because this spend a certain amount of exhaust air or have poor guidance will cause the waste of fuel, resulting in energy waste and environmental pollution.
The heat generated by the combustion of the fuel must be fully utilized and must not be dissipated. The heat generated by the combustion of the fuel should be fully utilized. By adding a preheater to the air inlet device and a regenerative heat exchanger to the flue gas, part of the heat in the flue gas can be used to preheat the combustion air, thereby reducing the amount of fuel used to heat the combustion air.
Heat Medium and Insulation Materials
The application of heat medium and insulation materials can reduce energy consumption and improve energy efficiency, while also reducing environmental pollution. For example, reducing the surface temperature of the furnace and improving insulation performance can reduce heat loss and improve energy efficiency. The choice of insulation materials should also consider environmental protection. Thermally insulating materials with low energy consumption, non-toxic, non-polluting and other characteristics should be given priority.
Heat Distribution
For heat-treatment furnaces with heat-distributing devices, a reasonable cold-air distribution and exhaust proportion should be determined according to the type of furnace and the production volume, to balance the temperature difference of the billet and reduce energy consumption and improve energy efficiency.
Conclusion
The energy saving and environmental protection of heat treatment play an important role in using the natural resources reasonably and protecting the environment. Through introducing the furnace types, heat conduction, heat utilization, heat medium and insulation materials, heat distribution and other aspects, we can further enhance the energy saving and environmental protection of heat treatment, and make a significant contribution to environmental protection, energy conservation and sustainable development.
