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高炉送风除湿装置是将高炉所需要的风量在送往高炉之前,除去其中所含水分的设备。高炉在操作过程中,在热风中的水分,在高炉中由于高温而分解成氢和氧,要耗损大量的热量,送风中的水分含量越高,热损失就越大。由于大气湿度和温度在一年之内、一月之内或一昼夜之间均是变化的。为了稳定炉况,过去的办法是以夏季湿度为基准进行调湿鼓风,这种办法使焦比提高。为了稳定炉况、降低焦比,日本各制铁所在热风炉前的送风管路上采用除湿装置的措施,控制送风中的水分含量,不致因大气湿度的变化而变化,并使送风中的水分含量稳定在最低限度。近年来,日本在高炉送风除湿装置中常采用干式或者湿式吸收法除湿,用氯化锂作除湿剂,这种方法在生产上存在着运行
The blast furnace ventilation dehumidifier is a device that removes the moisture content of the blast furnace before it is sent to the blast furnace. During the operation of the blast furnace, the moisture in the hot air is decomposed into hydrogen and oxygen in the blast furnace due to the high temperature, and a large amount of heat is consumed. The higher the moisture content in the blast, the greater the heat loss. Because atmospheric humidity and temperature change within a year, within a month or overnight. In order to stabilize the furnace condition, the past method was based on the humidity in the summer as a benchmark for humidity control, this approach to increase the coke ratio. In order to stabilize the furnace condition and reduce the coke ratio, Japan’s iron and steel makers use dehumidifiers on the air supply line in front of the hot blast furnace to control the moisture content in the blast, which will not change due to the change in atmospheric humidity and make the blast The moisture content is stable to a minimum. In recent years, Japan has used dry or wet absorption method for dehumidification in blast furnace dehumidifiers, and uses lithium chloride as desiccant. This method has a production operation.