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在中小型企業的鑄造車間,一般都用轉爐和冲天爐熔煉金屬。为了減少爐子爐襯的烧损,并利用其散發出的热能,我們曾对轉爐和冲天爐进行了一些改裝,現把它介紹如下: 一 轉爐的改裝 轉爐在熔煉时从爐口排出大量高溫烟气(1400℃～1600℃)。为了排出这股烟气,一般在爐口上空裝有水冷排烟罩。采用这种裝置不仅耗去大量净水,浪費大量热能,而且还需要建立循环水冷系統。显然这是一种很不經济的措施。因此,为了利用轉爐噴出熱量,我們在排烟罩上裝了一个作为受热用的水箱。当爐子噴出大量热流时,作为排烟罩頂的水箱底部便受热,因而水箱中水的溫度逐漸升高。等水具有一定溫度和压力后,即开始产生大量蒸汽。这些蒸汽可作加热
In foundries of small and medium-sized enterprises, converters and cupolas are generally used for melting metals. In order to reduce the burning of the furnace lining and use the heat energy emitted by it, we have made some modifications to the converter and the cupola. Now we introduce it as follows: A modified converter of the converter discharges a lot of high-temperature flue gas from the furnace mouth during smelting. (1400°C to 1600°C). In order to discharge the flue gas, a water-cooled exhaust hood is generally installed over the furnace mouth. The use of such a device not only consumes a large amount of clean water and wastes a lot of heat, but also requires the establishment of a recirculating water cooling system. Obviously this is a very uneconomical measure. Therefore, in order to use the converter to emit heat, we installed a heat storage tank on the exhaust hood. When the furnace emits a large amount of heat, the bottom of the tank as the exhaust hood is heated, and the temperature of the water in the tank gradually rises. After the water has a certain temperature and pressure, it begins to generate a large amount of steam. These steams can be heated