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Device for determining particle sizes

A particle size distribution and particle technology, applied in the direction of measuring devices, sampling devices, individual particle analysis, etc., can solve the problems of high cost, singleness, etc., and achieve the effect of good expressive ability

Active Publication Date: 2015-01-28
BUEHLER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] According to the prior art, the detection of the measured values ​​is carried out only by means of a single measuring principle, which limits the field of application and / or requires high costs

Method used

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  • Device for determining particle sizes
  • Device for determining particle sizes
  • Device for determining particle sizes

Examples

Experimental program
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Embodiment Construction

[0105] according to figure 1 , the particle flow is conveyed vertically downward in the settling tube 22 . The particle stream comprises particles, which may occur during a milling process, eg in a grain mill, through a comminution, cleaning or separation process. With the aid of a sampling device designed as a sampling device 1 , a partial flow of particles is extracted at the measurement point and fed horizontally to a distribution and diffusion device 8 . next combine figure 2 Sampling is described in more detail. The distribution and diffusion device 8 is known per se. It can be configured, for example, as a baffle (such as described in document WO 2006 / 000112), a fan or a vibrator, or contain a bucket.

[0106] according to figure 2 , the air flow 10 carrying the particles contained therein subsequently flows laminarly in the channel 9 and is demonstrated by the two optical sensors 6 , 7 of the optical measuring device 4 arranged in the housing 61 . The optical se...

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PUM

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Abstract

#CMT# # / CMT# The method involves producing or providing a product stream containing particles. Measurement data are generated by optically detecting a part of the particles using two different optical measurement procedures. Properties e.g. size distribution, shape, shape factor, color, color content and / or speed, of the part of the particles are determined based on the measurement data, where the optical measurement procedures contain detection of a deflection pattern of the part of the particles. A sample containing the particles is extracted from the product stream. #CMT# : # / CMT# An independent claim is also included for a device for determining size distribution of particles. #CMT#USE : # / CMT# Method for determining size distribution of particles of bulk goods e.g. corn, milled corn products and corn products. #CMT#ADVANTAGE : # / CMT# The method enables optical on-line measurement of wide dimension-based particle size distribution of the bulk goods in a cost-effective manner. #CMT#DESCRIPTION OF DRAWINGS : # / CMT# The drawing shows a perspective view of a device for determining size distribution of particles. 8 : Disperser 22 : Downpipe 61 : Housing.

Description

[0001] This application is a divisional application of a Chinese patent application with application number 201080061435.7 and a filing date of November 11, 2010. technical field [0002] The invention relates to a method for measuring particle size distribution, especially for optical on-line measurement of dispersed particles of loose materials with a wide particle size distribution. Furthermore, the invention relates to devices for measuring such particle size distributions. Background technique [0003] The detection of the particle size and its distribution as well as the determination of the content by means of specific measuring principles are known per se. For example, document DE-C-19802141 shows a device for determining the particle size distribution by means of an optoelectronic scanning of a product stream by means of an optoelectronic measuring section. Wherein the image detection device includes a plurality of photoelectric image acquisition devices. This dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/14G01N1/08
CPCG01N2015/1472G01N1/08G01N15/147G01N2015/0092G01N15/1475G01N2015/0019
Inventor M·海涅S·曼兹
Owner BUEHLER AG