论文部分内容阅读
英国钢铁公司和诺丁汉大学利用容量为40吨渣/时的装置对液态高炉渣干式粒化和显热回收新工艺进行试验研究,确认利用旋转筒和空气雾化器使液态渣粒化,然后使其在空气中快冷可使炉渣呈玻璃质结构。图1是液态渣干式粒化和显热回收装置。液态渣通过封闭式流槽直接进入安装在显热回收装置中心的旋转筒和空气雾化器中。在粒化过程中渣粒沿着径向向外散射,并呈稍微向上喷射,碰到装置四壁。由于装置的四壁采用水冷,渣粒不会粘在壁上,从而可直接落入一级流化床。渣粒在一级流化床中快速冷却到由玻璃态变为结晶态的温度以
British Steel Corp and Nottingham University used a 40-ton slag / hour unit to study the new technology of dry granulation and sensible heat recovery of liquid blast furnace slag. Granulation of liquid slag by rotary drum and air atomizer was confirmed. Then, Make it cool in the air can make the slag glassy structure. Figure 1 is a liquid slag dry granulation and sensible heat recovery unit. The liquid slag passes through the closed gutter directly into the rotating drum and the air atomizer installed in the center of the sensible heat recovery unit. During the granulation process, the slag particles scatter radially outward and spray upward slightly, hitting the four walls of the device. Since the four walls of the unit are water-cooled, the slag particles will not stick to the wall and may fall directly into the primary fluidized bed. Slag particles in a fluidized bed rapidly cooled to the glassy state by the crystallization temperature