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Method for measuring double-ended water content

A measurement method and moisture technology, which is applied in the field of nuclear detection technology and automatic detection, and can solve problems such as measurement moisture errors

Inactive Publication Date: 2007-11-21
DANDONG DONGFANG MEASUREMENT&CONTROL TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When these conditions occur, the moisture of the material on the conveyor belt is stratified, causing errors in the measured moisture

Method used

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  • Method for measuring double-ended water content

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Embodiment Construction

[0036] The detection device adopted in the double-end moisture measurement method of the present invention is composed of three parts: a gamma ray measuring device, a neutron measuring device and a data processing device. Wherein the gamma ray measuring device is the same as the conventional measuring device, the neutron measuring device is a moisture measuring device composed of existing original devices in the present invention, and the data processing device is a conventional device. The structural relationship of the device is: the gamma ray measuring device is equipped with a gamma ray generator 6 on the upper part of the fixed bracket 8, and the gamma ray scintillator detector 7 is installed on the lower part; The neutron generator 1 is equipped with a terminal one slow neutron detector 2 on the outside of the fast neutron generator 1, and a terminal two slow neutron detector 3 is installed on the top of the fast neutron generator 1; the data processing device is composed...

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Abstract

A method of using two ends to measure water content includes applying two slow neutron detectors on neutron analyzing device, reasonably locating detection positions of two slow neutrons according to slow neutron space distribution in layering of water content on material and using couple-counting of two slow neutron detectors to carry out measurement of water content.

Description

technical field [0001] The invention relates to a nuclear detection technology and an automatic detection method, in particular to an online measurement method for moisture content of belt materials. Background technique [0002] In many fields such as mining, metallurgy, building materials, coal, etc., it is necessary to conduct online moisture measurement on the materials conveyed by the belt conveyor, so as to realize automatic adjustment of moisture and complete automatic control of the production process. The neutron moisture meter currently used on the on-site belt conveyor is usually a transmission type neutron moisture meter, which uses neutron and γ-ray transmission methods to jointly measure density and water content. In this way, two radioactive sources and two detectors are generally placed on the upper and lower sides of the material to be tested, and the moderation effect of water on fast neutrons is used to measure the moderation of fast neutrons to reflect th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/09
Inventor 龚亚林吴志强李岩峰张伟尹毅强尹德有翟润昌齐苗苗
Owner DANDONG DONGFANG MEASUREMENT&CONTROL TECHCO
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