METHOD AND SYSTEM FOR AUTOMATIC ANALYSIS OF PARTICLES

摘要

The present invention relates to a method and a system for automatic analysis of particle size distribution, shape and colour. Sampled particles are distributed into a substantially monolayer particle stream to be exposed to a light source for providing imaging and subsequent analysis of the particles. The samples are collected manually or automatically and placed in containers provided with identification codes which can be read/typed manually or automatically, recorded optically or electronically and the containers are placed in storage devices or sample magazines which can be connected to a sample distribution device for forming the particle stream. The samples can be collected from various process streams and the containers for these samples can be placed in the same storage device for being analysed as a series of analysis. The imaging of the particle stream is performed by camera chosen among several cameras present in the analysing device according to the particle size distribution of the sample. The automatic particle analysing system comprises devices for automatic collection of samples and containers (2) with identification codes for the samples and storage compartments (3) for said containers (2), and the samples can be emptied one by one into a sample distribution device (4) for forming particle streams suitable for imaging and subsequent analysis. The system comprises several imaging devices being cameras having different types of lenses which can be put automatically into operation as a function of the size of particles to be analysed.