一、炉气压差式料位自动检测器的认识和原理 1.所谓炉气压差法: 在冲天炉熔炼过程中,由鼓风机鼓入炉膛内的风压随气体穿过炉料层而逐渐降低,最后炉气从冲天炉加料口和烟囱排入大气中,此时炉气的压力与大气压相等(均为一个大气压),把炉气压力随炉料的高度的变化而变化的现象,转变为电信号的变化,从而 First, the furnace pressure differential type automatic level detector awareness and principles 1. The so-called furnace pressure difference method: In the cupola melting process, the blast pressure into the furnace with the gas pressure gradually decreases with the gas through the charge layer, and finally Furnace gas from the cupola feed port and the chimney into the atmosphere, when the furnace gas pressure and atmospheric pressure are equal (one of atmospheric pressure), the furnace gas pressure changes with the height of the charge of the phenomenon, into electrical signals Change accordingly