Fixed-mass multi-sample divider

Abstract

The invention relates to a fixed-mass multi-sample divider. The divider comprises a rotary chute, a driving device, a grooving mounting plate, a dividing groove barrel, a reserved sample receiving barrel and a waste material receiving barrel, wherein the driving device is connected with the rotary elephant trunk; the grooving mounting plate is arranged at the tail end of the rotary chute; an upper end of the division groove barrel is connected with a lower end of the cutting mounting plate; the reserved sample receiving barrel and the waste material receiving barrel are connected with a lower end of the division groove barrel; a waste cutting groove and a plurality of reserved sample cutting grooves are formed in the cutting groove mounting plate; a reserved sample shunting channel communicated with the reserved sample receiving barrel and a waste material shunting channel communicated with the waste material barrel are formed in the division groove barrel; and the driving device is mounted on the grooving mounting plate. The fixed-mass multi-sample divider provided by the embodiment of the invention is provided with a plurality of sample reserving channels, so a plurality of samples can be reserved, and requirements of various application scenes can be completely met; the amount of waste materials is controlled by controlling the time of the rotary chute passing through the waste material cutting groove, so the quality of reserved samples can be accurately controlled, and fixed-mass division is realized.

Description

technical field [0001] The invention relates to the technical field of sampling devices, in particular to a constant-mass multiple-sample divider. Background technique [0002] An important parameter in the sampling process of the reducer is the reduction ratio. The so-called reduction ratio refers to the percentage of the reduced sample in the total sample. For example, if a 5kg sample is reduced from a 100kg coal sample, the reduction ratio is 5%, or 1:20. In order to prepare a large number of large-grained coal samples into a small amount of small-grained test coal samples without bias, Chinese standards and ISO, ASTM, JIS, GOST, etc. have recommended various coal sample shrinking machines, but their The basic form is to use a cutter to cut a certain number of sub-samples at a certain time or mass interval from the moving coal flow to achieve the purpose of shrinkage. Generally speaking, the larger the reduction ratio, the poorer the representativeness of the reserved s...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at effectively solving the technical problems in the prior art that the sampling quality accuracy of the quantitative reducer is not high, the structure is complicated and the reliability is poor, and the present invention provides a fixed-quality multi-sample reducer

Images