Hot blast stove is widely used in all kinds of dry heating places nowadays. It is a very improved heat conduction equipment. Hot stove can be divided into indirect hot stove and direct hot stove. The two kinds of hot blast stoves have the same basic working principle, but each has its own advantages and differences. The indirect hot blast stove completes heat conduction through heat exchange. As a result, the use of hot blast stoves is becoming more and more common, but it also exposes some defects of hot blast stoves. The increasing utilization rate of heat energy makes the utilization rate of hot stove improve, but there is still a lot of room for improvement. Despite these factors, which are difficult to reach the extreme, the pollution caused by hot stove often brings us great disturbance. 而用于日常生活中的热风炉也显得小巧小巧，受制于家居环境的大小，日常用的热风炉减少了体积，让它看起来好像普通家庭电器一样。但其工作原理还是和工业热风炉一样，同样都是经过加热气体，传输热空气来到达加热、烘干的效果。在温度控制方面也做了相应的调整，使其更合适于家居运用。
The hot stove used in daily life is also small and small, subject to the size of the home environment, the daily hot stove reduces the volume, making it look like ordinary household appliances. But its working principle is the same as that of industrial hot stove. It is also heated gas, which transfers hot air to achieve the effect of heating and drying. In the aspect of temperature control, corresponding adjustments have been made to make it more suitable for household use.
The high temperature air contacts with the purified air through the exchanger, and the purified high temperature air contacts with the dried matter again, heating and completing the dryness. The larger the heat exchange area, the better the energy-saving effect of hot blast stove and the higher the heat conversion rate. The direct hot blast stove directly enters the drying room or baking room with the high temperature gas after quenching, and is heated directly with the dry matter.
Fuel changes, from a single coal in the solid fuel to today can use oil as a liquid fuel, natural gas as a gas fuel and some refined powder fuel. These measures have greatly increased the heat utilization rate of hot stoves, reduced greenhouse gas emissions and other pollution gases, and made a heroic step forward in the principle of environmental protection.
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