新型水动力喷雾降尘器设计与实现

Design and Realization of a New Type of Hydrodynamic Spray Dust Precipitator

针对采煤机喷雾系统喷雾面覆盖不足、设备老化等问题,设计一种新型水动力喷雾降尘器,并在不同水压下对使其进行性能试验和现场应用。结果表明,同等水压下,新型水动力喷雾降尘器相比无旋转喷雾降尘器的喷雾场惯性力更大。当水压为3MPa时,前者比后者的喷雾有效距离增大28.8%;在3m/s侧向风干扰下,同等水压的新型水动力喷雾降尘器比无旋转喷雾降尘器喷雾抗风能力强,当水压为2MPa时,喷雾抗风能力提高了60%,且随着水压的增大,喷雾的抗干扰能力越大;新型水动力喷雾降尘器喷雾最大覆盖面积和流量与水压呈正比关系,且相比于无旋转喷雾降尘器,其喷雾场更为稳定且均匀。现场应用高压水动力喷雾降尘器后,综采面平均全尘、呼尘降尘效率提高至84.58%,83.99%。

Aiming at the problem of insufficient coverage and aging of the shearer sprayer system in the red Liulin coal mine, a new type of hydrodynamic spray duster is designed, and its performance test and field application are carried out under different water pressure. The results show that under the same water pressure, the new-style hydrodynamic spray duster has greater inertial force than the SWIR spray duster. When the water pressure is 3MPa, the effective distance of the former is 28.8% higher than that of the latter. Under the side wind interference of 3m/s, the new hydrodynamic spray duster with the same water pressure has stronger anti-interference ability than that of the non swivel spray duster. When the water pressure is 2MPa, the anti-jamming ability of the spray is increased by 60%, and the anti-interference ability of the spray increases with the increase of water pressure. The maximum coverage area and flow rate of the new type of hydrodynamic spray dust collector are directly proportional to the water pressure, and the spray field is more stable and uniform than that of the non rotating spray duster. After the application of high pressure hydrodynamic spray dust remover, the average dust and dust removal efficiency of the fully mechanized coal mining face increased to 84.58% and 83.99%.