Dust Concentration Changing Regularities and Dust Reduction Technology by Spray Negative Pressure in Fully Mechanized Mining Face

Table 5

Atomization characteristic parameter table of nozzles under 6 MPa pressure.

No.	(μm)	(μm)	(μm)	(μm)	(μm)
1	21.034	46.394	75.532	37.782	47.737
2	22.108	45.713	74.358	36.810	47.160
3	39.360	69.499	107.095	59.635	72.266
4	41.084	70.803	114.184	62.172	74.025
5	23.118	47.626	81.559	40.272	50.267
6	20.532	44.457	70.674	36.978	45.721
7	21.660	47.451	73.998	37.042	47.054
8	20.015	43.935	70.274	36.656	45.139