The problem of serious particle size segregation in linear reciprocating sampling machine is solved.The unidirectional sampling method and control of the interception flow speed fluctuation is less than 5％to reduce the sampling segregation.Through the analysis of the dynamic conditions of the mathematical model,the minimum volume of the air package and the minimum bore of the cylinder are derived to guarantee the speed fluctuation range.The high-precision unidirectional linear sampling machine developed according to this innovation has the advantages of small sampling segregation,no jamming of opening and closing,and low failure rate.It fully meets the accuracy requirements of national standards for sample preparation,and has been widely used in the field of automatic sampling of Pangang bulk ore.
Bulk mineral productsSampling machineSampling segregationHigh-precision
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