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Device and method for rapidly measuring total ash content and components of paper based on optical filtering method

A technology of measuring devices and measuring methods, which is applied in the directions of measuring devices, analyzing materials, and material analysis through electromagnetic means, which can solve the problems of large human error, low measurement accuracy, and long time consumption, and achieve the effect of long time consumption

Pending Publication Date: 2019-05-17
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the above-mentioned defects in the prior art, the present invention provides a rapid measurement device and method for the total ash content of paper and its components by the filter method. The ash content of different types of paper solves the problems of traditional measurement methods such as long time-consuming, cumbersome steps, large human errors, and low measurement accuracy

Method used

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  • Device and method for rapidly measuring total ash content and components of paper based on optical filtering method
  • Device and method for rapidly measuring total ash content and components of paper based on optical filtering method
  • Device and method for rapidly measuring total ash content and components of paper based on optical filtering method

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Embodiment 1

[0040] A fast measuring device for total ash content and components of paper by optical filter method, comprising a C-shaped box 1 and an upper box body 11, a lower box body 12 and a turntable 13 inside; the turntable 13 is arranged on the upper box body 11 and the lower box body Between the body 12; the center of the upper box 11 is provided with an ionization chamber 111, and the two sides are provided with lead rubber 112; Tube 1211, a stepper motor and its driver 122 are set on one side of the radiation chamber 121, an X-ray tube high-voltage power supply 123 is set on one side of the box, and a water cooling device 124 is set on the other side; the turntable 13 and the stepping motor and its driver 123 connected, the turntable is provided with placement holes for placing 5 optical filters 131 .

[0041] The five filter placement holes on the turntable 13 are arranged at 0°, 72°, 144°, 216°, and 288° of the turntable.

[0042] When overhauling the X-ray tube-based rapid a...

Embodiment 2

[0049] The present invention is as follows to the measuring method of total ash content and component thereof:

[0050] 1) Make four CaCO 3 、TiO 2 , kaolin or talc, CaSiO 3 A band-pass filter through which X-rays of characteristic wavelengths pass and a blank control filter;

[0051] 2) Turn on the power supply of the ionization chamber 111, measure the voltage signal sent by the ionization chamber 111 under the condition of no radiation as the radiation-free voltage V background ;

[0052] 3) According to the type of paper to be tested, adjust the X-ray tube high-voltage power supply 123 to obtain an optimal X-ray intensity for measuring paper ash;

[0053] 4) Turn on the X-ray tube high-voltage power supply 123, and after it stabilizes, measure the voltage signal sent by the ionization chamber 111 as the air gap voltage V under the condition of no paper. air ;

[0054] 5) Put a piece of paper to be measured in the five filter holes of the turntable 13, turn the turntab...

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Abstract

The invention discloses a device for rapidly measuring total ash content and components of paper by using an optical filtering method. The device comprises an upper box body (11), a lower box body (12) and a rotating disc (13) arranged between the upper box body and the lower box body; an ionization chamber (111) is arranged in the center of the upper box body (11); a radiation chamber (121) is arranged in the center of the lower box body (12); and placement holes capable of placing five optical filters (131) are formed in the rotating disc (13). X-rays emitted by an X-ray tube pass through the rotating disc and the optical filters to reach the ionization chamber; the ionization chamber is used for ionizing the entered rays to generate a voltage; and the ash content and the components of the paper are calculated according to a voltage value. The ash content and the components of the paper can be rapidly and accurately measured; the problems of long time, complex steps, relatively largehuman error and the like in measuring the ash content of the paper by a burning method are solved; and the requirement of rapidly measuring the ash content and the components of the paper in papermaking production and scientific research processes is met.

Description

technical field [0001] The invention belongs to the measuring technology of paper ash, and in particular relates to a fast measuring device and a measuring method for the total ash of paper and its components by a filter method. Background technique [0002] Paper ash content is an important parameter to measure the quality of paper. In the process of paper production and research and development, appropriately increasing the paper ash content will reduce the consumption of paper fibers and reduce the cost of paper. The detection and control of paper ash content has become an important part of. [0003] The traditional off-line method of measuring paper ash is to put the paper sample in a muffle furnace for high-temperature burning, and weigh the residue after burning to measure the paper ash. However, this method is time-consuming, cumbersome, and damages the paper The human error is large, and the traditional muffle furnace has problems such as slow heating process, long ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/66
Inventor 胡连华鲁鑫钰向成毅
Owner SHAANXI UNIV OF SCI & TECH
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