KR200340691Y1 - a system for moisture detecting - Google Patents

Abstract

According to the present invention, there is provided a moisture measuring apparatus comprising: sampling means for periodically taking a sample of a raw material continuously moved by a conveyor and putting it in a sample collecting container; A sample container receiving the sample collected from the sample collecting container; Measuring means spaced apart from the sample collecting means and lifted by the lifting means for measuring the mass of the sample container and the sample contained therein; A sample container transfer means installed between the sample collection container and the measurement means to move the sample container to an upper portion of the measurement means; It characterized in that it comprises a drying means for heating and drying the sample transferred by the sample container transfer means.

Description

Moisture Measurement Device {a system for moisture detecting}

The present invention relates to a moisture measuring apparatus, and more particularly to a moisture measuring apparatus for measuring the moisture content of the material continuously moved by a conveyor or the like.

Typically, many substances used as raw materials for certain products such as chemicals, papermaking, milling, siliceous sand, analytical coal, iron ore powder, and building materials manufacturing (wood and cement production) contain a certain amount of moisture. It is well known that the characteristics of each product are determined, so accurate measurement and control of moisture content is an important factor in the process in order to optimize product characteristics and control quality. Technology for measuring moisture content has been developed a long time ago, and many efforts have been made to improve the measurement accuracy and to measure moisture on-line stably.

There are direct and indirect methods for measuring moisture. Indirect methods are used rather than direct methods for online application. In recent years, some companies have developed a device that automatically measures the gravimetric method and measures it every 20-30 minutes. However, this method is also not continuous and is maintained because it is installed in the field with a complex device of automated robotic method. It is pointed out that there is a problem with the repair.

Indirect moisture measurements include electrical, near-infrared, neutron scattering, and microwave methods. Among them, the electrical method is mainly used for measuring moisture of food, wood, paper, and soil. Near-infrared and neutron methods have been used for the longest time for moisture determination of steel raw materials, and recently, some methods using microwaves have been used. However, the measurement of moisture by using the indirect method varies the measured values depending on the installation location, sample type, sample conditions, etc. As a result, errors occur largely and problems such as damage to the device due to unavoidable accidents in the field often occur. I am having difficulty with the on-line measurement of moisture.

In the indirect method, the neutron moisture meter is based on the principle of deceleration of high-speed neutrons by hydrogen atoms, and is mainly used for measuring moisture inside materials. While neutron moisture meter is very easy to measure online, it has been pointed out that the problem is that the density value has to be corrected separately and the radioactive material has to be treated.

Recently, a new type of transmission neutron moisture meter has been developed, and the measurement accuracy has been reported to be considerably improved, but the measurement error is also known to be very large.

Microwave moisture meters (US Pat. No. 5,256,978 and US Pat. No. 5,315,258) using the microwave method are used to measure moisture content by measuring phase change or attenuation of electromagnetic waves, and are used for on-line measurement. The near-infrared moisture meter reflects near infrared rays to the surface of a material The degree of absorption is determined by measuring the degree of absorption of the wavelength range absorbed by moisture in the infrared region, which is absorbed by moisture, and converting it into a moisture content. The device is simple and easy to apply online (especially a material flowing on the belt). On the other hand, the measurement value is significantly different depending on the type of sample, particle size, color, etc. If a relationship between moisture and absorbance is obtained for a sample, it is possible to obtain moisture from absorbance, which is the output of a near-infrared moisture meter, using the relational equation. The relational equation obtained for this purpose is called a calibration curve or simply a calibration curve. The regression method, which is a statistical method, is used to obtain the calibration curve, but most moisture meters are equipped with this function so that it can be easily processed. To set up the calibration curve, first, set the upper limit and the lower limit of the moisture range of the sample to be measured, and prepare three or more specimens having different moisture contents in this range and measure and record the absolute moisture content by gravimetric method. At this time, three to four pieces of data are obtained per sample. Then, for each sample of known moisture, the flaw is measured with a near-infrared moisture meter, and then a calibration curve is drawn using aberration method.

On the other hand, Japanese Patent Application Laid-Open No. 63-063948 has a wavelength (λ1 = 1.94 µm) in which water is absorbed by the near infrared method and a wavelength in which absorption is not caused by moisture (λ2 = 2.1, 2.3 µm). A method of measuring the moisture value by comparing the signal intensity of) is proposed. In addition, Japanese Patent Laid-Open No. 7-243958 describes two slits S1 and S2 of different widths on a rotating disc for measuring near-infrared moisture, which is not affected by particle size changes, and allows light of different amounts to irradiate the surface of the object. The larger the particle size of the workpiece, the greater the influence of surface irregularities, and the larger the ratio of the output variation of the slits S1 and S2 due to the movement. A method of correcting a ratio signal with (λ2) has been proposed.

In Japanese Patent Laid-Open No. 7-198599, multiple regression analysis is performed using specific wavelength bands (λ1) and (λ2) reflected from the measured object as independent variables, and the coefficients are determined by a regression equation. A method of measuring the moisture of an unknown subject is proposed.

U.S. Patent No. 5,357,441 proposes to calibrate an infrared moisture measuring apparatus by inputting the reflected light amounts of specific wavelengths [lambda] 1, [lambda] 2 to the measured object into a portable computer.

However, each of these methods solves the fundamental problems of particle size, color, and raw material, such as solving only the particle size problem (Japanese Patent Laid-Open No. 7-243958), or trying to establish an accuracy of calibration curve (Japanese Patent Laid-Open No. 7-198599). It does not solve the problem that it cannot be excluded.

On the other hand, Korean Patent Laid-Open No. 2000-040236 discloses a moisture measuring device using a microwave, and 2001-0058076 discloses a water continuous measuring device of blast furnace input fuel and a control method thereof. JP 2000-0011687 A discloses a measuring device for measuring the content of crushed coke.

The present invention is to solve the problems as described above, to provide a moisture measuring device that can increase the reliability of the analysis by collecting the raw material such as powder minerals continuously moved by a conveyor at regular intervals to secrete the sample. Its purpose is.

Another object of the present invention is to provide a moisture measuring apparatus that can accurately measure the moisture content of the raw material continuously supplied by the conveyor to reflect it to the production system.

Another object of the present invention is to provide a moisture measuring device that can increase the accuracy of the detection value by measuring the content of the moisture contained in the raw material by using the difference in mass after sampling the raw material in which the moisture is moistened and dried have.

1 is a front view of another moisture measuring device according to the present invention,

2 is a plan view of the moisture measuring apparatus shown in FIG.

3 is a side view of the moisture measuring apparatus shown in FIG. 1;

4 is a perspective view of a sampling means,

5 is a perspective view of a sample container transfer means,

6 is a cross-sectional view showing a state in which a sample container is supported by a grip portion;

7 is a perspective view of the cleaning means,

8 is a perspective view of the scraping means,

<Explanation of symbols for the main parts of the drawings>

10; moisture measuring device

20; Sampling means

40; Measure

60; Sample container transfer means

80; drying means

410; Sample container

300; conveyor

Moisture measuring device of the present invention to achieve the above object,

Sampling means for periodically collecting a sample of the raw material continuously moved by the conveyor and placing the sample in a sample collecting container;

A sample container receiving the sample collected from the sample collecting container;

Measuring means including a weighing scale spaced apart from the sample taking means and spaced apart by a lifting means to measure the mass of the sample container and the sample contained therein;

Sample container transfer means installed between the sample collection container and the measurement means to move the sample container to an upper portion of the measurement means;

It characterized in that it comprises a drying means for heating and drying the sample transferred by the sample container transfer means.

In the present invention, the sampling means is an arm rotatably installed on the bracket located on the upper portion of the conveyor for transporting the raw material, a link rotatably installed in one direction at the end of the arm and elastically biased outward, the link And an actuator installed on the bracket to pivot the arm so that the sample contained in the basket is contained in the sample collection container.

The measuring means may include a subplate lifted by the lifting means installed on the base frame, and a weighing scale installed on the sub plate. The sample container transfer means may include a pivoting plate pivoted by a first pivoting part installed on the support member, a transporting table guided by a guide rail installed on the pivoting plate and installed forward and backward along the pivoting plate. And a support shaft installed on the pivot plate to move the transport table forward and backward, the support shaft rotated forward and backward at a predetermined angle by a second pivot installed on the transport table, and installed at an end of the support shaft. It is separated when the sample container is lifted and provided with a support means supported during the lowering.

Hereinafter, a preferred embodiment of the moisture measuring apparatus according to the present invention with reference to the accompanying drawings in detail as follows.

Moisture measuring device according to the present invention is installed in a comfortable working space adjacent to the conveyor, the blended raw material, cement which is loaded into the sinter to produce the sintered ore, iron raw material of the blast furnace, analytical coal continuously transported by the conveyor Samples are taken from powdered minerals such as limestone charged in a kiln of a factory and silica sand charged in a melting furnace of a glass factory, and the embodiments of the present invention are illustrated in FIGS. 1 to 3.

Referring to the drawings, the moisture measuring device 10 is a sample collecting means for periodically taking a sample 401 of the powdered mineral 400 continuously transported by the conveyor 300 and put in the sample collection container 11 ( 20 and a measurement means 40 including a sample container 410 which will be lifted by the lifting means 41 and spaced apart from the sample taking means 20 and a measuring scale for measuring the mass of the sample contained therein. And a sample container transfer means 60 which transfers the sample container 410 supplied from the sample collection container 11 to the upper portion of the measuring means 40 and inverts the sample container 410. And drying means 80 for heating and drying the sample conveyed by the container conveying means 60.

The moisture measuring apparatus 10 according to the present invention configured as described above will be described in detail for each component as follows.

As shown in FIGS. 1 and 4, the sampling means 20 is attached to a bracket 21 installed on the side of the base frame 12 located above the conveyor 300 to which the powder mineral 400 is transferred. An arm 22 rotatably provided, a link 23 hinged to the arm 22 so as to be bent in a rotational direction, a bucket 24 provided at an end of the link 23, and the arm ( And a rotating part 25 for rotating 22). The rotating part 25 may be formed of an actuator for rotating the arm 23 rotatably installed on the bracket 21. Here, the actuator may be made of a hydraulic motor, a servo motor and the like. And the rotating part 25 for rotating the arm 22 is not limited to the above-described embodiment, means for rotating the rotation axis of the arm rotatably installed on the bracket 21, that is, It may be composed of a rack rotated by a cylinder and a pinion installed on the rotating shaft. The hinge connection portion between the arm 22 and the link 23 is provided with a stopper 23a installed at the end of the arm 22 to prevent the link 23 from rotating backward, and the link 23 An end portion of the extension portion 26a extending from the hinge portion is formed and connected to the arm and the spring 26 to elastically bias the link 23 to the stopper side. In addition, upper and lower portions of the bracket 21 are provided with stoppers 27 and 28 provided on side surfaces of the base frame 12.

The measuring means 40 is for measuring the mass of the sample container 410 and the sample material contained therein, and is supported by the buffer unit 13 in the base frame 12 as shown in FIGS. 1 and 3. And a subplate 41 that is lifted and lowered by the lifting unit 50 provided on the base plate 14, and a weighing scale 42 installed on the subplate 41. The weighing scale 42 preferably uses a precision electronic balance that can accurately measure mass to 1/100 mg. And the measuring table 42a of the measuring scale 42 is preferably formed in a cylindrical shape so as to support the lower end of the sample container 410 to be described later.

The lifting unit 50 of the measuring means 40 includes at least one guide rod 51 and a lifting cylinder 52 disposed between the base plate 14 and the sub plate 41. . The measuring means 40 having the elevating part 50 is preferably mounted inside the case 45 to protect it from external dust or heat of the heating means described later.

The sample container conveying means 60 transfers the sample container 410 for supplying the sample from the sample collecting container 11 to the upper portion of the measuring means 40 or the sample container having completed the measurement. The raw material can be discarded by transferring it to the lower part of the bottom part), and one embodiment is shown in FIGS. 1 and 5.

Referring to the drawings, the sample container transfer means 60 is provided on the rotary plate 63 and the rotary plate 63 rotatably installed on the support member 61 by the first pivot 62. A transfer table 65 which is moved forward and backward along the rotating plate 63 by the guide rail 64, and a forward and backward cylinder 66 installed on the rotating plate 63 to move the transfer table 65 forward and backward; Support means for supporting the sample container 410 at the end of the support shaft 68 and the support shaft 68 is rotated forward and reverse by the second pivot (67) provided on the transfer table (65) (70).

The first rotation part 62 is an actuator 62a, such as a hydraulic motor, a submotor, and the like, which is supported by the support member 61, and is installed to be rotatably installed on the axis of rotation of the actuator and the support member 61. It has a structure connected to the rotation shaft 63a of the plate 63.

The second pivot 67 is connected to a support shaft 68 rotatably supported on the transfer table 65 by the pillow blocks 67a, and an actuator such as a hydraulic motor or a sub-motor, etc., for supporting it in reverse rotation. (67b).

Meanwhile, as shown in FIG. 6, the sample container 410 has an accommodating part 411 in which the sample is contained, and has a taper part 412 such that an outer circumferential surface thereof has a shape of a light beam. A main body 413 and a locking step 414 extending outwardly at the lower end of the main body 413. The support means 70 for supporting the sample container 410 is provided at the end of the support shaft 68 is provided with a grip portion 71 for wrapping and holding the tapered portion 412 of the main body 413. The grip portion 71 has a diameter smaller than the upper diameter of the tapered portion 412 and larger than the lower diameter of the tapered portion so that the grip portion 71 and the sample vessel 410 are separated when the sample vessel 410 is raised. It is preferable to.

In addition, the drying means 80 is to heat and dry the sample container 410 supported by the gripping portion 71 and the sample of the powder mineral wound thereon, an example of which is shown in Figs.

Referring to the drawings, the drying means 80 is a rotation frame (30) rotatably installed by a support member (81) supported by the base frame (12) and an actuator (82) supported by the support member (81). 83) and heating heaters 84 and 85 are installed to be spaced apart from the rotation frame 83 by a predetermined interval. It is preferable that the heating heaters 84 and 85 use far-infrared heaters. The drying means is not limited to this embodiment, and the structure capable of uniformly heating the sample container 410 supported by the holding part 71 and the sample 401 wound on the receiving part 411 to a predetermined temperature. Anything is possible. For example, it may be provided with a heater unit which is located in the upper and lower portions of the sample container transferred by the sample container transfer means and supported by the support bracket, and a cylinder installed on the support frame to move the support bracket forward and backward.

On the other hand, as shown in Figure 7 and 8 is installed adjacent to the sample collecting means 60 and the sample collecting container 11 washing means for washing the receiving portion 411 of the sample container 410 ( 90) and the scraping means 100 for removing the over-supplied sample after the supply of the sample collected from the sample collection container 11 to the sample container 410 transferred to the sample container transfer means 60. do.

As shown in FIG. 7, the cleaning means 90 includes a rotation shaft 91 rotatably installed at a side of the base frame 12 and a rotation member 92 extending from one side of the rotation shaft 91. And a motor 93 provided at an end of the rotating member 92 and a brush 94 rotated by the motor 93. And the other side of the rotation shaft 91 includes a link member 95 installed radially therefrom and a cylinder 96 whose rod is installed on the link member 95.

And the scraping means 100 is installed on the support 101 as shown in Figure 8 and the rotating shaft is rotated by a predetermined angle with a motor 102, the motor 102 is rotated by the sample container ( And a scraper 103 for removing a sample of the powdered minerals over-supplied to the housing portion 411 of the 401. In order to prevent the scraper 103 from being compacted in the process of removing the excessively supplied main body mineral, it is preferable to use an elastic and flexible material such as urethane and rubber.

In the moisture device, the structure for the forward and reverse or the structure for the rotation is not limited by the above-described embodiment, and can be modified in various forms in view of the functional configuration of the water measuring device of the present invention. . It is natural to have control means for driving and controlling each device sequentially.

Referring to the operation of the moisture measuring device according to the present invention configured as described above are as follows.

First, the receiving portion 411 of the sample container 410 supported on the support shaft 68 by the sample container conveying means 60 in the process of continuously conveying the powder mineral 400 by the conveyor (300) ) Is positioned below the sample collection container 11. In this state, the arm 22 is moved toward the conveyor 300 by the pivoting portion 25 of the sample collecting means 20 so that the bucket 24 is moved. This is moved to the top of the powdered minerals. At this time, the link 23 hinged to the arm 22 is rotated while moving along the upper surface of the powder mineral. The arm 22 is rotated counterclockwise by the pivoting portion 25 to collect the powdered mineral sample by the bucket. At this time, the stopper 23a is provided at the hinge connection portion of the arm 22 and the link 23, so that the link does not rotate in the counterclockwise direction. The sample collected in this way is contained in the sample collection container 11 by the rotation of the arm 22. In the same manner as described above, the sampling means 20 collects a sample of powdered minerals that is continuously moved about five times in about 30 seconds. Sampling in this manner can increase the reliability according to the sampling of the powder mineral compared to taking a sample from a conventional site.

When the sampling of the powdered minerals for measuring moisture is completed as described above, the samples of the powdered minerals excessively supplied to the sample container 410 are removed using the scraping means 100. That is, as shown in FIG. 8, the motor 102 supported by the support 101 is rotated so that the scraper 103 scraps the upper surface of the sample container 410 to remove the excessively supplied sample. .

When the supply of the sample to the sample container 410 is completed as described above, the forward and backward cylinder 66 of the sample container transfer means 60 is operated to move the transfer table 65 to the sample supported on the support shaft 68. The container 41 is introduced into the inside of the clean room through the storage port 200 of the base frame 12, that is, the clean room. And the actuator 62a of the first pivot 62 supported by the support member 61 is operated to rotate the rotating plate 63 by 180 degrees.

When the rotating plate 63 is rotated as described above, the sample container 410 supported by the support shaft 68 is positioned on the measuring means side, and in this state, the forward and backward cylinder 66 is operated to transfer the transfer table 65. The sample container 410 is placed on the upper part of the measuring means 40 by advancing).

Then, by raising and lowering the sub plate 41 by the lifting unit 50 of the measuring means 40, the weighing scale supported by the rising unit 50 is raised. As the measuring scale 42 is raised, the measuring table 42a of the measuring scale 42 comes into contact with the lower surface of the sample container 41 to lift the sample container against the holding part 71. In this case, since the sample container 410 is composed of a tapered portion 412 on the outer circumferential surface of the main body, the sample container 410 is separated from the holding part 71 to accurately measure the mass of the sample container 410 and the powdered minerals contained therein. Calculate the value.

As described above, when the mass measurement of the sample container 410 and the powdered minerals contained therein is completed, the weighing scale 42 may be lowered by the lowering of the sub plate 41 by the operation of the lifting cylinder 52 of the lifting unit 50. This is lowered, the sample container 410 is supported by the grip portion (71).

In addition, the rotating frame 83 of the heating means 80 is rotated so that the heating heaters 84 and 85 installed thereon are positioned above and below the heating container 410, and the powder contained in the heating container 410. Dry the sample of mineral.

The drying of the sample evaporates moisture while maintaining the temperature of the sample at 150 ° C. by a heating heater, that is, a far infrared heater. At this time, the heating time is somewhat different depending on the physical properties of the powder minerals, but it requires about 30 minutes of drying for complete drying. When the drying time has elapsed, the heater of the drying means is rotated and then naturally cooled.

When the drying and cooling of the sample is completed, the measuring scale of the measuring means 40 is raised by the same method as described above to precisely weigh the dried sample and the sample container to calculate the second measured value.

As described above, when the measurement of the sample mass before drying and the sample mass after drying is completed, it is calculated by the control unit (not shown) as a percentage of moisture to complete the detection of the content of water contained in the sample.

When the moisture content detection is completed as described above, the forward and backward cylinder 66 of the sample container transfer means 60 is operated to retreat the transfer table 65 and the actuator 62a rotates the rotation plate 63. Rotate 180 degrees. Then, the forward and backward cylinders 66 are operated to advance the transfer table 65 to discharge the sample container 410 supported on the support shaft 68 to the outside of the storage port 200. In this state, the support shaft 68 is rotated by operating the actuator 67b of the second pivoting portion 67 to discard the sample contained in the receiving portion 411 of the sample container 410. At this time, the sample container 410 is caught by the holding jaw 414 to the holding portion 71 is not separated from the holding portion 71.

When the discharge of the sample from the holding portion 71 of the sample container 410 is completed, using the washing means 90 to wash the accommodating portion 411. That is, as shown in FIG. 7 by operating the cylinder 96 to rotate the rotating shaft 91, the brush 94 of the rotating member 92 of the rotating shaft 91 is the receiving portion of the sample container 410 While keeping in close contact with the washing machine by rotating the brush 94 by the motor 93 to wash the receiving portion of the sample container 410.

When the cleaning of the storage unit is completed as described above, the brush 94 of the cleaning means 90 is rotated and separated from the sample container 410, and the cleaning container is the storage unit 411 by the second rotating unit Opposite the lower surface of the sample collection container.

In addition, the moisture content is measured by sampling the powdered minerals moved by the conveyor 300 in the same manner as described above.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible.

Therefore, the true scope of protection of the present invention should be defined only by the attached claims.

As described above, the moisture measuring apparatus according to the present invention is a powdered coal charged in a coke oven for producing cotton coke, a compound material charged in a sintering furnace for producing a sintered ore as an iron source of a blast furnace, and limestone charged in a kiln in a cement factory. Powder mineral raw materials, such as silica sand, charged into the melting furnace in the glass factory, are separated from the method of artificially sampling the sample from the conveying conveyor and sent to the analysis room to measure the moisture content. It is possible and at regular intervals (approximately 40 minutes) to obtain stable and accurate moisture readings. And it is possible to solve the problem of process correction value error caused by a mistake in the moisture content of the raw materials in the continuous operation.

In addition, by automating the method of artificial sample work on the belt conveyor which is operated at a high inclination angle at a high speed by the sampling means, the worker can be protected from the risk of a safety accident. It is designed to increase the accuracy of the measuring device by calculating the data.

Claims (12)

Sampling means for periodically collecting a sample of the raw material continuously moved by the conveyor and placing the sample in a sample collecting container; A sample container receiving the sample collected from the sample collecting container; Measuring means spaced apart from the sample collecting means and lifted by the lifting means for measuring the mass of the sample container and the sample contained therein; A sample container transfer means installed between the sample collection container and the measurement means to move the sample container to an upper portion of the measurement means; And drying means for heating and drying the sample transferred by the sample container transfer means. The method of claim 1, The sampling means includes an arm rotatably installed on a bracket located on an upper portion of a conveyor for transferring the material to be transferred, a link rotatably installed at one end of the arm, a bucket supported by the link, and And an actuator installed on the bracket to rotate the arm so that the sample contained in the basket is contained in the sample collection container. The method of claim 1, The measuring means is a water measuring device, characterized in that it comprises a sub-plate which is lifted by the lifting unit provided in the base frame, and the measuring scale is installed on the sub plate. The method of claim 3, The lifting unit is provided between the base frame and the sub-plate at least one guide rod, and the water measuring device, characterized in that it comprises a lifting cylinder provided between the base frame and the sub-plate. The method of claim 1, The sample container transfer means may be installed on a pivoting plate pivoted by a first pivoting portion provided on the support member, a transfer table supported on a guide rail provided on the pivoting plate and moved forward and backward along the pivoting plate, and provided on the pivoting plate. A forward and backward cylinder for moving the transfer table forward and backward, a support shaft rotatably installed at the transfer table and forward and reversely rotated at a predetermined angle by a second pivoting portion, and installed at an end of the support shaft. Moisture measuring device characterized in that it comprises a supporting means for supporting. The method of claim 5, The sample container supported by the supporting means is characterized in that it comprises a main body having a receiving portion containing the sample and having a tapered portion so that the outer circumferential surface is in the form of a light beam lower side, and a locking jaw extending outward to the lower end of the main body. Moisture measuring device. The method of claim 6, The support means is provided at the end of the support shaft is provided with a grip for wrapping and holding the tapered portion of the main body, The gripping portion is smaller than the upper diameter of the tapered portion and a diameter larger than the lower diameter of the tapered portion is formed so that the sample container is separated from the gripping portion when the sample container is raised to the gripping portion. The method of claim 1, The drying means is provided with a heater unit which is located in the upper and lower portions of the sample container transferred by the sample container transfer means and is supported by a support bracket, and a cylinder installed on the support frame to move the support bracket forward and backward. Moisture measurement device characterized in that. The method of claim 1, The drying means comprises a rotating frame rotated to the sample container side transported to the upper portion of the measuring means in the actuator, and heating heaters installed to be spaced apart from the rotating frame to heat the upper and lower parts of the sample container. Measuring device. The method of claim 1, It is installed adjacent to the sample collecting means, characterized in that it further comprises a washing means for washing the receiving portion of the sample container. The method of claim 10, The washing means includes a rotating member installed to be adjacent to the bracket and rotated by an actuator, a motor installed at an end of the rotating member, and a brush installed on the rotating shaft of the motor to wash the receiving portion of the sample container. Moisture measuring device, characterized in that. The method of claim 1, And a scraping means for scraping the sample excessively supplied from the sample collection container to the receiving portion of the sample container.