Speaking of heating furnaces, I believe many of my friends have heard of them, but they don’t know much about them. So, what is the working principle of heating furnaces? What are heating furnaces? What are the classification standards? With these questions, the editor of Kehua website will come. Tell everyone. The working principle of the heating furnace What is the heating furnace? In the metallurgical industry, the heating furnace is a device (industrial furnace) that heats materials or workpieces (usually metal) to rolling to forging temperature. Heating furnaces are used in many industries such as petroleum, chemical industry, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemicals, and pharmaceuticals. What is the working principle of the heating furnace? The furnace used for heating small broken fabric blanks only has a preheating section and a heating section. It is customary to divide the furnace section according to the heat supply zone where the burner is installed in the furnace, and the furnace is called one-stage type, two-stage type, five-stage type, six-stage type, etc. according to the number of supply zones. In the 1950s and 1960s, due to the increased capacity of the rolling mill, and the length of the pusher furnace was limited by the length of the pusher, the heating belt was added at the feed end, and the non-heating preheating section was cancelled to improve the Productivity per unit floor area. Using this furnace to heat slabs, the output per unit area of u200bu200bthe furnace bottom is 900-1000 kg/(m2·hour), and the heat consumption is about (0.5-0.65) × 106 kcal/ton. Since the 1970s, due to the need for energy saving, and because the emerging walking furnace allows to increase the length of the furnace, a non-heating preheating section has been added. time), the heat consumption is about (0.3 ~ 0.5) × 106 kcal/ton. Continuous heating furnaces usually use gas fuel, heavy oil or pulverized coal, and some burn lump coal. In order to effectively utilize the heat of exhaust gas, a heat exchanger for preheating air and gas, or a waste heat boiler is installed in the flue. Working principle of heating furnace What are the classification standards? Heating furnace includes continuous heating furnace and chamber heating furnace. The heating furnace for metal heat treatment is also called heat treatment furnace. A furnace that heats an ingot or makes the temperature inside the ingot uniform before blooming is called a soaking furnace. In a broad sense, heating furnaces also include soaking furnaces and heat treatment furnaces. In forging and rolling production, billets are generally heated in an oxidizing atmosphere with a complete combustion flame. Using an incomplete combustion reducing flame (ie 'self-protective atmosphere') to directly heat the metal can achieve the purpose of no oxidation or less oxidation. This heating method is called open flame or open flame non-oxidative heating, and is successfully used in rotary hearth furnaces and chamber furnaces. The whole content about the working principle of the heating furnace will be introduced to you here. If you have any opinions, please leave us a message, and we will carefully read each of your messages. Interested friends can also pay attention to the Kehua website.