Dry centrifugal granulation (DCG) experiments for blast furnace slag (BFS) were performed by means of a rotary disk atomizer since water quenching method can create a series of problems. The results showed that the DCG method can granulate the BFS, but the results are easily affected by the slag flow rate, disk rotating speed, disk radius, disk material and slag falling height. The granulating parameters with an excessive flow rate, low rotating speed, SiN–SiC disk, stainless steel disk and low slag falling height are detrimental to the granulation process. The most suitable parameters for granulation are a slag flow rate of 5.1 × 10⁻⁵ m³/s, a disk rotating speed of 1500–2300 r/min, a slag falling height of 0.8 m and a smooth graphitic disk with the radius of 0.1 m. In the absence of an off-center flow, the overall best granulating effect produces round particles with mean diameter of 3.43 mm without creating slag fiber. The vitreous content of the BFS particles granulated by graphite disks is 92%, which meets the requirements of cement raw materials. The Bond work index of dry granulated BFS is 18.4 kWh/t, and the grindability of dry granulated slag and water-quenched slag is similar.

高炉矿渣（BFS）的干离心造粒（DCG）实验是通过转盘雾化器进行的，因为水淬法会产生一系列问题。结果表明，DCG法可以造粒BFS，但结渣流量，圆盘转速，圆盘半径，圆盘材料和落渣高度容易影响结果。流量过大，转速低，S​​iN-SiC圆盘，不锈钢圆盘和低落渣高度的造粒参数对造粒过程不利。造粒最合适的参数是渣流率为5.1×10 ^-5 m ³/ s，圆盘转速为1500–2300 r / min，落渣高度为0.8 m，光滑的石墨圆盘的半径为0.1 m。在没有偏心流的情况下，总体最佳的造粒效果会产生平均直径为3.43毫米的圆形颗粒，而不会产生矿渣纤维。石墨盘造粒的BFS颗粒的玻璃态含量为92％，符合水泥原料的要求。干法制粒BFS的邦定工作指数为18.4 kWh / t，干法制渣和水淬渣的可磨性相似。