Method and device for rapidly detecting moisture content of wood chips

A detection method and technology of moisture content, applied in the direction of measuring device, weighing by removing certain components, instruments, etc., can solve the problems of fast detection of wood moisture content, etc., and achieve shortening detection time, accelerating diffusion, property stable effect

Inactive Publication Date: 2019-02-05
GUANGXI FENGLIN WOOD IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to realize the improvement effect of the wood moisture content detection method, it is also necessary to design a supporting device for the new method. The utility model patent wood moisture content detection device (patent number application number CN201620917616.X) has a simple operation method and is suitable for popularization and use, but it cannot be achieved. To meet the requirements of rapid detection of wood moisture content

Method used

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  • Method and device for rapidly detecting moisture content of wood chips
  • Method and device for rapidly detecting moisture content of wood chips
  • Method and device for rapidly detecting moisture content of wood chips

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Select a whole piece of wood without defects such as skin, knots, decay, moth-eaten, etc., saw off the 250mm wood at both ends of the wood chip, and then saw off the remaining wood chips at both ends to obtain 3 30mm cube wood chips. After scraping off the burrs and sawdust, weigh their mass on a balance with an accuracy of 0.01g and a range of not less than 200g, and record the mass as M, and the mass of the three test pieces corresponds to M respectively. 1 , M 2 , M 3 , and then put the test piece and the attapulgite with 10 times the weight of the test piece into the drying box to ensure that the test piece and the attapulgite are placed in different positions in the drying box so that they do not get along directly. Set the temperature of the drying oven to 100 °C, dry for about 4 hours, take out the weighing mass, record it, and then put it back into the drying oven to continue drying. Then weigh it every 1h until the last two weighings remain unchanged, which i...

Embodiment 2

[0025] Select a whole piece of wood without defects such as skin, knots, decay, moth-eaten, etc., saw off 280mm wood at both ends of the wood chip, and then saw off the remaining wood chips at both ends to obtain 3 35mm cube wood chips. After scraping off the burrs and sawdust, weigh their mass on a balance with an accuracy of 0.01g and a range of not less than 200g, and record the mass as M, and the mass of the three test pieces corresponds to M respectively. 1 , M 2 , M 3 , and then put the test piece and the attapulgite with 12 times the weight of the test piece into the drying box to ensure that the test piece and the attapulgite are placed in different positions in the drying box, so that the two do not get along directly. Set the drying oven temperature to 105°C, dry for about 4 hours, take out the weighing mass, record it, and then put it back in the oven to continue drying. Then weigh it every 1h until the last two weighings remain unchanged, which is the absolute dr...

Embodiment 3

[0027] Select a whole piece of wood without defects such as skin, knots, decay, moth-eaten, etc., saw the 300mm wood at both ends of the wood chip, and then saw off the remaining wood chips at both ends to obtain 3 40mm cube wood chips, and cut the test pieces. After scraping off the burrs and sawdust, weigh their mass on a balance with an accuracy of 0.01g and a range of not less than 200g, and record the mass as M, and the mass of the three test pieces corresponds to M respectively. 1 , M 2 , M 3 , and then put the test piece and the attapulgite with 15 times the weight of the test piece into the drying box to ensure that the test piece and the attapulgite are placed in different positions in the drying box so that they do not get along directly. Set the drying oven temperature to 110°C, dry for about 4 hours, take out the weighing mass, record it, and then put it back in the oven to continue drying. Then weigh it every 1h until the last two weighings remain unchanged, whi...

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Abstract

The invention relates to the field of wood detection, and particularly a method and a device for detecting a moisture content of wood chips. The method comprises the following four steps: selecting asample; preparing a sample; weighing an original weight of the sample; drying and weighing a dry weight of the sample. The sample and an attapulgite are added in an oven to perform heating and dryingin the drying step, and the sample and the attapulgite are respectively placed in the oven. The device for detecting the moisture content of the wood chips is convenient to operate, economical and practical. According to the method for detecting the moisture content of the wood chips, the water content of the wood can be rapidly detected.

Description

technical field [0001] The invention relates to the field of wood detection, in particular to a method and device for detecting moisture content of wood chips. Background technique [0002] Moisture content is an important material property index of wood. Wood strength, electrical conductivity, shrinkage and swelling are closely related to wood moisture content, and in the drying process, the value of moisture content is almost the adjustment of drying medium parameters and drying. The only basis for process control. The wood moisture content detection is usually carried out by the oven drying method. By measuring the wood weight before and after drying, the moisture weight is obtained by the difference, and then the moisture content is calculated. Although the detection method is simple and reliable, the detection time is long and the work efficiency is relatively high. Low, not suitable for promotional use. The factors that affect the time-consuming detection include the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
CPCG01N5/045
Inventor 李天华王筱东卢胜高韦淇峰
Owner GUANGXI FENGLIN WOOD IND GRP CO LTD
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