轻灰煅烧炉炉气分离器的工艺计算

简要介绍φ2 800轻灰煅烧炉配套炉气分离器的工艺计算。

新型轻灰炉气分离器的设计

描述了一种新型的炉气分离器:通过设置内部刮料装置,将黏附在炉气分离器内壁上的轻灰粉尘刮下;底部出料口设置输送装置,将下落的轻灰粉尘及时输送至下游重碱预混器。该新型炉气分离器能有效解决气固分离效率低、下料不畅,经常性清灰等问题,提高了生产的连续性和设备的使用寿命。

煅烧炉气系统的改造

主要针对我公司煅烧炉气系统存在的一些列问题,进行了工艺流程优化、技术与设备更新,生产逐步稳定,在设计30万t/a的基础上,现已达到36万t/a的生产规模。

轻灰炉气湿法洗涤流程工艺及改进措施

描述了轻灰炉气湿法洗涤流程的原理及生产要点;阐明了热碱液数量的控制要求及其组份含量;分析了热碱液中结晶析出的条件;提出了改善炉气分离器除尘效率的有效措施,即适当加大分离器的炉气入口速率,可降低热碱液碱度、稳定生产运行。技术改造后在生产实际中取得了明显成效。

轻灰炉气湿法洗涤流程工艺及改进措施

本文描述了轻灰炉气湿法洗涤流程的原理及生产要点;阐明了热碱液数量的控制要求及其组份含量;分析了热碱液中结晶析出的条件;提出了改善炉气分离器除尘效率的有效措施,即适当加大分离器的炉气入口速率,可降低热碱液碱度、稳定生产运行。技术改造后在生产实际中取得了明显成效。

Numerical Study of U-beam Inertial Separator

A detailed parametric study is conducted on three-dimensional gas-solid multiphase flow characteristics in inertial separators via numerical simulation. The carrier phase is treated in the Eulerian frame, the particles are tracked in the Lagrangian frame, and particle-wall collision and particle-particle collision are considered. The inertial separators are made out of U-beam tube, arranged staggered .The separator has good performance for large particles and its compact structures make it easy to manufacture and install. The simulation is carried out in different inflow rate and provide the pressure losses in the separators, velocity field of gas phase, the trajectories of particles and the separation efficiency of separators. The result from this study not only shows the multiphase flow-dynamic characteristics of the separators, but also gives the relationship among the efficiency, structure and pressure losses of the separator. The comparison between the numerical simulation result and experimental data demonstrate the reliability of the numerical simulation.