基于负压诱导技术的架间引射装置的设计与应用

针对降柱移架产尘特点，基于负压诱导技术，研制了一种新型架间喷雾引射降尘装置，并通过正交试验，综合液气比与引射风量2个指标，对架间喷雾引射降尘装置的性能进行了测定。结果表明：试验条件下，喷嘴孔径、喷管直径是液气比的主要影响因素，喷雾压力对其影响不明显；喷嘴孔径1.2 mm、喷管直径150 mm、喷雾压力8 MPa为该降尘装置的最优参数。现场应用表明，架间喷雾引射降尘装置对总粉尘和呼吸性粉尘的降尘效率分别达到了72.5%和84.9%，喷雾引射降尘效果明显。

Design and Application of the Inter-frame Ejector based on Negative Pressure Induction Technology

In view of the characteristics of the dust generated by the moving of hydraulic support, a new inter-frame spray ejector dust removal device was developed based on the technology of negative pressure induction, and through orthogonal test, the performance of this device was measured by combining two indexes of liquid gas ratio and ejector air volume. The results show that under the experimental condition, the nozzle aperture and nozzle diameter are the main influencing factors of the liquid gas ratio, and the influence of spray pressure is not obvious; when nozzle aperture is 1.2 mm, nozzle diameter is 150 mm and spray pressure is 8 MPa, it is the optimal parameter of dust removal device. The field application shows that the dust reduction efficiency of inter-frame spray ejector dust removal device to the non-respirable dust and respirable dust reaches 72.5% and 84.9% respectively, and the effect of dust removal by spray ejector is obvious.