KR100748077B1 - Automatic sieve analysis apparatus with water and test method for particle size distribution of soils using the same - Google Patents

Abstract

The present invention is an automatic wet sieve analysis for quickly and accurately classifying soil by particle size according to the soil particle size test method (KS F 2302) and the soil washing test method (KS F 2309) according to the Korean Industrial Standard (KS). Apparatus and a method for classifying soil using the same, The sieve analysis device is a closed tube in the form of a main pipe is installed on the upper plate, the lower plate is formed with a plurality of spray holes the upper lid portion; A lower part of the upper lid part, an upper surface of which is opened, and a lower part of the lower inner surface of which a sieve is installed in which a sieve is installed in a test sieve; And a lower drain portion having a tubular shape in which an upper surface is opened and an inclined plate is inclined downward on an inner surface thereof and a drain pipe is formed on a lower side thereof.

Test sieve, particle size, soil, Korean Industrial Standard, sieve analysis device

Description

AUTOMATIC SIEVE ANALYSIS APPARATUS WITH WATER AND TEST METHOD FOR PARTICLE SIZE DISTRIBUTION OF SOILS USING THE SAME}

1a and 1b show a conventional test sieve and sieve analysis device.

Figure 2 shows an automatic wet sieve analysis apparatus according to the present invention.

Figure 3 separately shows the upper lid portion constituting the automatic wet sieve analysis apparatus of the present invention.

Figure 4 shows the separation of the upper lid portion, body fractionation portion and the lower drain constituting the automatic wet sieve analysis apparatus of the present invention.

<Explanation of symbols for main parts of the drawings>

100: sieve analysis device 110: upper lid portion

120: body sorting unit 130: lower drainage

200: water supply device 400: vibration device

500: controller

The present invention relates to an automatic wet sieve analysis apparatus and a soil classification method using the same. More specifically, automatic wet sieve analysis to quickly and accurately classify soils by particle size according to the soil particle size test method (KS F 2302) and soil washing test method (KS F 2309) according to the Korean Industrial Standard (KS). The present invention relates to an apparatus and a soil classification method using the same.

In soil mechanics or geodynamics, soil particle size, water content, and specific gravity are measured as soil physical properties.In particular, the Korean Industrial Standard (KS) measures 13 soil particle size test bodies to classify the particle size. The soil is sifted according to the size of the sieve.

This is called "soil particle size test method" and is labeled KS F 2302.

Figure 1a shows a test sieve 10 used in the soil particle size test method (KS F 2302), Figure 1b is a plurality of soil to sift the soil by the particle size test method of soil (KS F 2302) It shows the sieve analysis apparatus 20 is installed by stacking the sieve for the particle size test.

The sieve analyzing apparatus 10 has a plurality of test sieves 10 are stacked on the lower support 21 in a large size to a small size (range of 75㎛ ~ 75㎜) of the sieve from the top, the test sieve ( 10 is integrally fixed by the frame 22,

While the vibrator 24 driven by the drive motor 23 operates, the entire test body 10 can vibrate.

In this process, the sample soil located in the uppermost test sieve 10 is filtered through the test sieve 10, and the soil corresponding to the size of the eye of the sieve remains, and the soil smaller than the size of the sifting eye passes through the corresponding sieve. It is possible to classify by particle size according to the soil remaining in the test sieve (10).

However, when using the conventional sieve analysis device 20 has been pointed out that it is difficult to classify the soil by the exact particle size, the reason is that when the soil particles, the sieve of the sieve installed in the test sieve 10 during the sifting process This is because dirt sticks together in the snow.

In other words, the soil to be filtered in the test sieve 10 is entangled in the sieve in the previous step and remained, thereby preventing more precise and rapid classification of the soil by particle size.

In order to solve this problem, according to the Korean Industrial Standard (KS) "Washing Test Method (KS F 2309)" (Test Method 4.4), the soil is entangled in the sieve without passing water through the sieve. The washing was repeated to wash the soil for each sieve.

However, all of these tasks can only be performed by manpower, which takes a long time, and work errors cannot be ignored.

The present invention is to solve the problems of the prior art,

The present invention satisfies the soil particle size test method (KS F 2302) and the soil washing test method (KS F 2309) according to the Korean Industrial Standard (KS), it is possible to perform the soil particle size test accurately and quickly It is an object of the present invention to provide a sieve analysis device.

It is another object of the present invention to more efficiently classify coarse or fine grain test soil and to use it effectively for various other tests.

For example, in order to prepare high-quality coarse and fine grain test soils required by KS K ISO 12956, which is a wet method among geotextiles and related products, the size of at least 20 μm specified in ISO 565 It is to prepare the test soil using SIEVE), there was a problem that the preparation of the test soil of the fine granules by the conventional method is very difficult. Accordingly, another object of the present invention is to provide a new sieve analysis device capable of producing more precise classified test soil.

The present invention to achieve the above technical problem

First, as the water is sprayed downward from the top of the sieve analysis device of the present invention, such sprayed water automatically washes away the contaminated soil without passing through the sieve, which is injected from the water supply device. The upper lid part is installed in the sieve analysis device so that water can be sprayed.

Second, in order to prevent the phenomenon that the washed-down soil is not washed off well with water by the stagnant air in the sieve, an air discharge tube is formed in the sieve to enable more efficient sifting of the soil.

Hereinafter, the soil classification method using the automatic wet sieve analysis apparatus according to the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings.

Soil classification method using the automatic wet sieve analysis device of the present invention Figure 2 showing the automatic wet sieve analysis device of the present invention, Figure 3 showing the upper lid portion and the upper lid portion, body fractionation portion and lower drainage separately Looking at Figure 4,

In the method for classifying soil by particle size using a sieve analysis device comprising a frame for supporting the soil classification sieves stacked up, down by varying the size of the body,

Spraying water downward from the spray hole by injecting water into the main pipe of the upper lid part in the form of a closed tube including a water pipe installed on the upper surface and having a plurality of spray holes formed in the lower plate (s1);

The sprayed water is entangled in the sieve even though it is installed in the lower part of the upper lid and the upper surface is opened and the lower inner surface passes through the sieve of the tubular body sorting section in which the sieve is installed. S2 to wash away the soil; And

Finally discharging the water to the outside through the inclined plate and the drainage pipe of the drainage pipe in which the upper surface is opened and the upper surface is opened and the inclined downward slope is installed on the lower surface and the drainage pipe is formed on the lower side; It was configured to include,

Sieve analysis device 100 of the present invention

The main water pipe 111 is installed in the upper plate 112 in a closed tube shape, the lower plate 113 is the upper lid portion 110 is formed with a plurality of spray holes 114;

A body fractionation unit 120 in which an upper surface is opened below the upper lid part 110 and a lower inner surface is stacked with a test sieve 122 having a sieve 121 installed therein; And

A lower drainage portion 130 having a tubular shape in which an upper surface is opened and an inclined plate 131 is inclined downward on an inner surface thereof and a drainage pipe 132 is formed on a lower side thereof. It was made.

The step s1 is to replace the method to rinse down the soil by flowing water to the test sieve by the conventional manpower to automatically supply water to the sieve analyzing apparatus 100 so that the supplied water is sprayed on the sieve of the sieve analyzing apparatus to be. To this end, the present invention is such that the water supply device 200 is connected to the sieve analysis device 100.

3 shows an example of the upper lid portion 110, which is made in a cylindrical shape as a whole, the lower plate 113 is formed with a plurality of spray holes 114 so that water can be sprayed, the upper plate ( 112) The water injection pipe 111 protrudes upward in the outline center part.

The main water pipe 111 is a tube into which water is injected, and receives water from the water supply device 200 to be described later. Water injected from the main water pipe 111 is sprayed downward through the plurality of spray holes 114 spaced apart from each other while falling on the lower plate 113. By the sprayed water, water is supplied to each test sieve 122 of the body fractionation unit 120 while falling.

At this time, the amount and intensity of the spray can be determined according to the size and separation distance of the spray hole 114, which can be adjusted by the amount and speed of water injection, but can also be adjusted by the installation method of the lower plate of the lower lid portion. .

That is, the lower plate formed with a plurality of spray holes of the upper lid portion may be manufactured integrally with the upper lid portion, but may be manufactured separately so that the upper lid portion may be inserted into the socket to be separated from the upper lid portion, and the size of the spray hole may be If you use a number of different bottom plate to be able to precisely adjust the intensity and amount of water spray desired depending on the state of the tangled soil.

The water injected into the main water pipe 111 is supplied by the water supply device 200.

The water supply device 200 is a water supply tank 210; And a water supply adjusting means 220 including a water supply adjusting tank 210 and a water supply adjusting valve 211 installed at a lower side of the water supplying tank 210.

The water supply tank 210 may be manufactured using a tub-shaped water tank that can accommodate water, and is installed at a position slightly higher than the installation position of the upper lid part 110, and the water supply tank 210 may be naturally supplied with water. ) Can be flowed into the water pipe (111).

In order to control the flow of water, a water supply adjustment valve 211 is installed at the lower side of the water supply tank 210 to adjust the amount of water.

As the water supply adjusting valve 211, the lever type valve can be opened and closed simply.

Step s2 is a wet soil according to the soil washing test method (KS F 2309) using a laminated test sieve equipped with a plurality of standard sieves (SIEVE) according to the soil particle size test method (KS F 2302). This step is to sift quickly and precisely.

In the lower part of the upper lid part 110, for example, a body fractionation unit 120 in which a plurality of test sieves 122 satisfying the soil particle size test method (KS F 2302) is stacked is installed.

The upper surface is opened as the test sieve 122, and the lower inner surface is provided with a sieve according to the standard prescribed in the particle size test method (KS F 2302) of the soil. In the present invention, a plurality of test sieves 122 are stacked and a plurality of test sieves 122 are installed, so that the test sieves 122 are referred to as the body sorting unit 120.

The test body 122 is made of a cylindrical material as a whole and made of a transparent material such as an acrylic plate so that the inside can be confirmed, and a sieve having a corresponding eye size according to the classification is attached to the inner lower portion of the cylindrical test body 122. .

Since conventional test sieves are mostly made of aluminum or the like and are not transparent so that the inside cannot be confirmed, there is a point that it is not suitable for visually confirming whether or not the soil is entangled in the sieve. The test sieve 122 was made of a transparent or semi-transparent material so that the amount of water supply could be adjusted while checking whether the water was washed down or the soil was properly sifted.

Usually the soil for the sample is located on the test sieve located at the top, the soil is automatically sifted as the test sieve is vibrated by the vibration device 400 to be described later, a part of the soil to pass through in this process is tangled in the sieve The phenomenon occurs.

The water sprayed from the upper lid part washes away the contaminated soil from the sieve so that only the soil that needs to be sifted in the body remains. The remaining soil is not mixed with soils of different particle sizes, and thus can be easily used to prepare soil having a particle size of a certain standard specified in other experiments.

The air discharge pipe 123 is further installed on the side of each test sieve 122. The air discharge pipe 123 is a tube bent in the form of "b" is installed on the side of the test sieve so that the air inside the test sieve is naturally discharged.

The reason for installing the air discharge pipe in the test sieve 122 in the present invention is to prevent the phenomenon that the soil tangled in the test sieve is not washed off well by water by the stationary air.

That is, in order to discharge the stagnant air from the test sieve, by installing an air discharge pipe on the test sieve, the soil stuck to the sieve is washed away better, so that the classification by the particle size of the soil can be accurately and quickly.

In the present invention, the test sieve 122 of the sieve classification unit 120 is to be a sieve drainage unit 130 to be described later to sift the soil quickly so that the vibration device 400 and the control device 500 is installed.

First, the frame 300 is installed to prevent the positional deviation due to vibration of each test body 122 of the body sorting unit 120, and the frame includes a lower drainage part 130 which will be described later including an upper lid part and a test sieve. ) Can be installed to enclose, but if it has a function of preventing the deviation of the position due to the vibration of the test body, other types of frames are included in this.

The vibrator 400 and the vibration device including a vibration motor 410 and a drive unit 420 for driving the vibration motor in order to vibrate the body fractionation unit 120 to facilitate the classification of soil. The control device 500 including a control unit 510 for controlling the driving of the device; is further installed in the vibration device.

The vibration motor may use a general motor operated by a general power source, but a driving unit 420 may be installed to turn on and off a general power switch for driving the vibration motor.

In order to control the strength and direction of the vibration, the control device 500 including the control unit 510 connected to the vibration device may be connected to the driving unit 420 to adjust the vibration intensity, direction, etc. of the body classification unit 120. Make sure

The step s3 is a step of finally draining the washed water of the soil tangled in each test sieve 122 of the sieve sorting unit 120.

In the drainage step, an upper surface is opened at the lower portion of the body fractionation unit 120, and an inclined plate 131 is inclined downward on an inner surface thereof, and a lower drain portion 130 having a tubular shape in which a drain pipe 132 is formed on a lower side thereof. It is possible by installing.

Referring to FIG. 4, which shows an extract of the upper lid part 110, the body fractionation part 120, and the lower drainage part 130 constituting the automatic wet sieve analysis device,

The inclined plate 131 has a function of collecting water passing down the surface of the inclined plate down the inclined plate surface to be installed inclined downward on the inner surface of the lower drain portion 130 of the tubular shape.

In order to finally drain the water collected in the lower portion of the inclined plate 131 to the outside to the bottom side of the lower drain 130, a tubular drain pipe 132 is formed.

The water collected downward by the inclined plate 131 is drained to the outside through the drain pipe 132, the drained water is contained in a separate reservoir is processed.

The sieve analysis apparatus 100 of the present invention is automatically supplied with water to the upper lid portion 110, the vibration of the body fractionation unit 120 is automatically adjusted by the vibration device and the control device, the drainage of the water supplied The treatment is also automatically processed using the lower drainage unit 130, so that the classification by the particle size of the soil can be automatically processed instead of manpower.

As described above, by the sieve analysis device according to the present invention, the soil can be automatically and precisely classified by particle size precisely and quickly, which is very efficient. Soil remaining in each test sieve is the effective hole size of geotextile and related products. It has the technical effect of increasing its useful value, such as being available for the production of test soils necessary to evaluate the

The embodiments of the present invention described above and illustrated in the drawings should not be construed as limiting the technical spirit of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications fall within the protection scope of the present invention as long as they are obvious to those skilled in the art.

Claims (8)

In the sieve analysis device including a frame for supporting the soil classification sieves stacked up and down according to the size of the body in order to satisfy the soil particle size test method and the soil washing test method, A main water pipe is installed on the upper plate in a closed cylinder shape, and the lower plate includes an upper lid portion in which a plurality of spray holes are formed; A lower part of the upper lid part, an upper surface of which is opened, and a lower part of the lower inner surface of which a sieve is installed in which a sieve is installed in a test sieve; And And a lower drain portion having a tubular shape in which an upper surface is opened and an inclined plate is inclined downward on an inner surface thereof and a drain pipe is formed on a lower side thereof. The water is injected into the water pipe, the water remaining in the eyes of the sieve as the water flows through the body fraction is washed, so that the soil does not get stuck in the sieve automatic wet body analysis device. The apparatus of claim 1, wherein the upper lid part, the body fractionation part, and the lower drainage part are manufactured in a cylindrical shape made of a transparent material, and the inside thereof can be visually confirmed from the outside. The apparatus of claim 1 or 2, wherein an air discharge pipe is further formed on a side of the test sieve. The vibration device according to claim 1 or 2, wherein a vibration part including a vibration motor and a driving part for driving the vibration motor is provided in the lower part of the frame to facilitate the classification of soil by vibrating the body fractionation part. Automatic wet sieve analysis device, characterized in that the control device including a control unit for controlling the vibration device is further installed. According to claim 1 or 2, wherein the lower plate formed with a plurality of spray holes of the upper lid portion is made integrally with the upper lid portion, or manufactured separately so that the upper lid portion is fitted to be separated from the upper lid portion. Automatic wet sieve analysis device. The water supply pipe of claim 1 or 2, wherein the water supply pipe includes: a water supply tank connected to the water supply pipe; And a water supply adjusting means including a water supply adjusting valve installed at a lower side of the water supply tank. In order to satisfy the soil particle size test method and the soil washing test method, the soil is classified by particle size by using a sieve analysis device including a frame supporting the soil classification sieves stacked up and down by varying the size of the body. To Spraying water downward from the spray hole by injecting water into the main pipe part of the upper lid part having a closed tubular shape including a water pipe installed on the upper surface and having a plurality of spray holes formed in the lower plate; The sprayed water is installed in the lower portion of the upper lid portion, the upper surface is open and the soil remaining tangled in the sieve even though it can pass through the soil classification sieve while passing through the inside of the tubular sieve having the test sieve installed on the lower inner surface. Washing off; And Finally, the water is installed in the lower portion of the body fractionation, the upper surface is opened and the inner surface is inclined downward inclined plate and the lower side discharged to the outside through the inclined plate and the drain pipe of the drain pipe formed with a drain pipe; Soil classification method using an automatic wet sieve analysis device characterized in that. The method according to claim 7, further comprising the step of further forming an air discharge tube on the side of the test body in the form of a cylinder to allow stagnant air to be discharged to the outside to the outside. Soil classification method.

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