JPS6133459B2 - - Google Patents
Info
- Publication number
- JPS6133459B2 JPS6133459B2 JP15397179A JP15397179A JPS6133459B2 JP S6133459 B2 JPS6133459 B2 JP S6133459B2 JP 15397179 A JP15397179 A JP 15397179A JP 15397179 A JP15397179 A JP 15397179A JP S6133459 B2 JPS6133459 B2 JP S6133459B2
- Authority
- JP
- Japan
- Prior art keywords
- sieve
- particles
- measuring tube
- funnel
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002245 particle Substances 0.000 claims description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000002002 slurry Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000005029 sieve analysis Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 230000002441 reversible effect Effects 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 description 8
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000007873 sieving Methods 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0272—Investigating particle size or size distribution with screening; with classification by filtering
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Description
【発明の詳細な説明】
この発明は、粒子の湿式篩分析方法及び分析装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wet sieve analysis method and an analysis device for particles.
粒子の湿式篩分析は、化学工業において必要と
される。それは、例えば、塩化ビニル樹脂を製造
したあとで、その樹脂粒子の大きさを測定するの
に必要とされる。この測定には篩が使用される。
具体的には、測定すべき粒子の一定量を取り出
し、これを篩にかけて篩を通過する分と通過しな
い分とに分け、各分の量を測定することによつて
なされる。この場合、樹脂粒子が湿つているた
め、小粒子が付着し合つて篩上に残るおそれがあ
るので、粒子の上に水を流し、小粒子を篩から落
下させる操作が加えられている。このようにすれ
ば、粒子の湿式篩分析を確実に行うことができ、
信頼すべき淵析結果を得ることができる。 Wet sieve analysis of particles is required in the chemical industry. It is needed, for example, to measure the size of vinyl chloride resin resin particles after it has been manufactured. A sieve is used for this measurement.
Specifically, this is done by taking a certain amount of particles to be measured, sieving it, dividing it into those that pass through the sieve and those that do not, and measuring the amount of each portion. In this case, since the resin particles are wet, there is a risk of small particles adhering to each other and remaining on the sieve, so an operation is added in which water is poured over the particles to cause the small particles to fall off the sieve. In this way, wet sieve analysis of particles can be performed reliably,
Reliable analytical results can be obtained.
上述の原理に従つた分析法は、以前から行なわ
れているが、従来法はその具体的操作が煩瑣であ
り、能率よく行い得ない欠点があつた。例えば、
篩を通過した小粒子を一旦容器に集め、これを水
と分離し、乾燥し、また別の容器に移し変えて秤
量する。という煩瑣な操作を行つていた。また、
篩上に残つた大粒子を秤量するには、篩上の大粒
子を一旦別の容器に集め、乾燥し、その後さらに
別の容器に移し変えて秤量する。という操作を採
つて来た。このため、分析結果を得るのに手間が
かかり、能率的に分析結果を得られなかつた。そ
こでこの点を改良する必要があつた。 Analytical methods based on the above-mentioned principles have been used for some time, but the conventional methods have the drawback that the specific operations are complicated and cannot be carried out efficiently. for example,
The small particles that pass through the sieve are collected in a container, separated from water, dried, and then transferred to another container and weighed. This was a complicated operation. Also,
To weigh the large particles remaining on the sieve, the large particles on the sieve are collected in another container, dried, and then transferred to another container and weighed. I have adopted this operation. For this reason, it took time and effort to obtain analysis results, and analysis results could not be obtained efficiently. Therefore, it was necessary to improve this point.
この発明者は、篩の下に漏斗をおき、篩を通過
した小粒子を漏斗によつてフイルターつきの計量
管に導き、フイルター上で脱水し、計量管内の小
粒子の体積から小粒子の量を定めた。篩上の大粒
子は、篩を反転させて漏斗を通して同様な計量管
に導き、同様にして大粒子の量を定めた。その結
果、迅速簡易に目的とする分析結果の得られるこ
とを確認した。この発明は、このような確認に基
づきなされたものである。 This inventor places a funnel under the sieve, guides the small particles that have passed through the sieve into a measuring tube with a filter, dehydrates them on the filter, and calculates the amount of small particles from the volume of the small particles in the measuring tube. Established. The large particles on the sieve were introduced into a similar measuring tube by inverting the sieve and passing through a funnel, and the amount of large particles was determined in the same manner. As a result, it was confirmed that the desired analysis results could be obtained quickly and easily. This invention was made based on such confirmation.
この発明は、スラリーを篩上に流出させ、篩上
に残つた粒子に水を振りかけ、篩を通過した粒子
を漏斗に通してフイルター付きの計量管に導き、
フイルター上で脱水し、フイルター上の堆積粒子
量を測定して小粒子量とし、その後篩を反転さ
せ、篩上の粒子を同様な計量管に移して大粒子量
を測定し、このような操作を異なる篩について行
うことを特徴とする。粒子の湿式篩分析方法に関
するものである。 This invention allows the slurry to flow out onto a sieve, sprinkles water on the particles remaining on the sieve, and guides the particles that have passed through the sieve through a funnel into a metering tube with a filter.
Dehydrate on a filter, measure the amount of particles deposited on the filter to determine the amount of small particles, then invert the sieve, transfer the particles on the sieve to a similar measuring tube to measure the amount of large particles, and perform such operations. is characterized in that it is performed on different sieves. This invention relates to a wet sieve analysis method for particles.
この発明方法によれば、スラリーを篩上に流出
させ、篩上に残つた粒子に水を振りかけ、篩を通
過した粒子を漏斗に移してフイルター付きの計量
管に導くので、篩上での粒子の篩分け及び篩から
の粒子の離脱が容易且つ確実となる。また、フイ
ルター上で脱水し、フイルター上の堆積粒子量を
小粒子量とするので、粒子量を容易且つ迅速に測
定することができ、従来法のように粒子の篩分
け、乾燥及び秤量のために、それぞれ別の容器に
移し変える必要がなく、従つて粒子量の測定が簡
便である。また、小粒子量を測つたあとは、篩を
反転させて、篩上の粒子を同様な計量管に移して
大粒子量を測定することとしたので、大粒子量の
計量も容易である。さらに、上述の操作を異なる
篩について繰り返し行うので、粒子分布を正確に
しかも容易に知ることができる。かくして、この
発明方法によれば、迅速且つ容易に分析を行うこ
とができる。この点で、この発明方法は便利なも
のである。 According to the method of this invention, the slurry is flowed onto the sieve, the particles remaining on the sieve are sprinkled with water, and the particles that have passed through the sieve are transferred to a funnel and introduced into a measuring tube with a filter, so that the particles on the sieve are The sieving and separation of particles from the sieve become easy and reliable. In addition, since the water is dehydrated on the filter and the amount of particles deposited on the filter is reduced to a small amount, the amount of particles can be measured easily and quickly. In addition, there is no need to transfer the particles to separate containers, making it easy to measure the amount of particles. Furthermore, after measuring the amount of small particles, the sieve is inverted and the particles on the sieve are transferred to a similar measuring tube to measure the amount of large particles, so it is easy to measure the amount of large particles. Furthermore, since the above-described operation is repeated for different sieves, the particle distribution can be accurately and easily determined. Thus, according to the method of this invention, analysis can be performed quickly and easily. In this respect, the method of the invention is advantageous.
この発明は、さらに上記方法の実施に使用され
る装置を含んでいる。その装置発明は、水噴出ノ
ズルと、篩と、漏斗と、計量管とを、この順序に
上から下へと並べ、篩を反転可能にし、篩を通過
した水及び粒子が漏斗を経て計量管内に落下する
ようにし、計量管の下部にフイルターと細管とを
この順序に付設し、フイルター上の管を透明体で
構成し、粒子の湿式篩分析装置に関するものであ
る。 The invention further includes apparatus used to carry out the method described above. The device invention consists of arranging a water jet nozzle, a sieve, a funnel, and a measuring tube in this order from top to bottom, making the sieve reversible, and allowing the water and particles that have passed through the sieve to flow through the funnel into the measuring tube. The present invention relates to a wet sieve analyzer for particles, in which a filter and a thin tube are attached in this order to the lower part of a measuring tube, and the tube above the filter is made of a transparent material.
この発明に係る装置では、水噴出ノズルと、篩
と、漏斗と、計量管とをこの順序に上から下へと
並べ、篩を反転可能にし、篩を通過した水及び粒
子が漏斗を経て計量管内に落下するようにしたの
で、スラリーを篩上に流出させ、あとはその上に
水を流出させるだけで、小粒子と大粒子とを分離
し、分離した小粒子を直ちに計量管に移すことが
でき、またその後篩を反転させるだけで分離した
粒子を計量管に移すことができる。また、計量管
の下部にフイルターと細管とをこの順序に付設し
たので、分離した小粒子又は大粒子を水とともに
計量管に移し、水を分離して粒子だけを計量管内
に残すことができ、従つて小粒子又は大粒子を容
易且つ確実に計量管に移すことができる。さら
に、フイルター上の管を透明体で構成したので、
計量管内にある粒子量を目測することが容易であ
る。このように、この発明に係る装置は、粒子の
分析を容易且つ確実に行い得るようにする点で、
実用上の利益が大きい。 In the device according to the present invention, a water jet nozzle, a sieve, a funnel, and a measuring tube are arranged in this order from top to bottom, the sieve is made reversible, and the water and particles passing through the sieve are measured through the funnel. Since the slurry is made to fall into the pipe, the slurry flows out onto the sieve, and all that is left to do is to flow water over it to separate small particles from large particles, and immediately transfer the separated small particles to the measuring tube. The separated particles can then be transferred to a measuring tube simply by inverting the sieve. In addition, since a filter and a thin tube are attached in this order at the bottom of the measuring tube, it is possible to transfer the separated small particles or large particles to the measuring tube together with water, separating the water and leaving only the particles in the measuring tube. Therefore, small particles or large particles can be easily and reliably transferred to the measuring tube. Furthermore, since the tube above the filter is made of transparent material,
It is easy to visually measure the amount of particles in the measuring tube. As described above, the apparatus according to the present invention has the following advantages in that particle analysis can be easily and reliably performed.
The practical benefits are great.
この発明を理解するには、まず装置の説明をす
るのがわかり易いと考えられるので、最初に装置
の説明をする。第１図は、この発明に係る装置の
一部切欠側面図である。 In order to understand this invention, it is thought that it is easiest to explain the device first, so the device will be explained first. FIG. 1 is a partially cutaway side view of the device according to the invention.
第１図において、１はノズルであつて、水を噴
出させる。２は篩であつて、下程直径の拡大する
スカート部３の下端に網４を張り、その下に短筒
５を付設した構造のものである。６は漏斗であ
り、７は計量管である。計量管７は、上端が漏斗
部８となり、その下に一定の内径の円筒９を付設
した外形のものであつて、円筒９の下部にフイル
ター１０が付設され、フイルター１０の下端は細
管１１となつて、ここから吸引又は注水できるよ
うになつている。円筒９は透明体、例えばガラス
で構成され、円筒９にはフイルター１０の上端か
ら上へ向けて目盛が施されている。ノズル１、篩
２、漏斗６、計量管７は、上から下へ向けてこの
順序に位置し、支注１２に着脱自在に取付けられ
る。そのうち、篩２は摘み１３を回して回転軸１
４の周りに180度反転させ、スカート部３と短筒
５との上下関係を逆にすることができるようにな
つている。篩２としては、網４の目の大きさの違
うものを複数個用意しておく。 In FIG. 1, 1 is a nozzle that spouts water. Reference numeral 2 is a sieve having a structure in which a net 4 is stretched over the lower end of a skirt portion 3 whose diameter increases toward the bottom, and a short tube 5 is attached below the net 4. 6 is a funnel and 7 is a measuring tube. The measuring tube 7 has a funnel portion 8 at its upper end, and a cylinder 9 with a constant inner diameter attached below it.A filter 10 is attached to the lower part of the cylinder 9, and the lower end of the filter 10 is a thin tube 11. This allows suction or water to be injected from here. The cylinder 9 is made of a transparent material, such as glass, and is graduated upward from the upper end of the filter 10. The nozzle 1, sieve 2, funnel 6, and measuring tube 7 are located in this order from top to bottom, and are detachably attached to the support 12. Among them, for sieve 2, turn knob 13 to rotate shaft 1.
4, it is possible to reverse the vertical relationship between the skirt portion 3 and the short tube 5 by 180 degrees. As the sieve 2, prepare a plurality of meshes 4 having different mesh sizes.
ノズル１、篩２、漏斗６、及び計量管７の構造
及びそれらの相互位置は、次のような関係にされ
る。篩２における網４の直径をD1とし、ノズル
１の水噴出角をθ、スカート部３の高さをP1とす
ると、網４の直径D1は、
１．２Ｄ１／２Ｐ１≧tanθ／２≧Ｄ１／２Ｐ１
の関係を満足するように設計される。これは、ノ
ズル１から噴出された水を、網４上に均一に広げ
るためである。また、篩２を180度反転させたと
き、網４上の大粒子を迅速に漏斗６へ落下させる
ために、スカート部３の傾斜角δをθ＞δ＞θ／２の
範囲内に定める。 The structures of the nozzle 1, sieve 2, funnel 6, and metering tube 7 and their mutual positions are in the following relationship. When the diameter of the mesh 4 in the sieve 2 is D 1 , the water jet angle of the nozzle 1 is θ, and the height of the skirt portion 3 is P 1 , the diameter D 1 of the mesh 4 is 1.2D 1 /2P 1 ≧tanθ It is designed to satisfy the relationship: /2≧D 1 /2P 1 . This is to spread the water ejected from the nozzle 1 uniformly over the net 4. Further, in order to cause large particles on the screen 4 to quickly fall into the funnel 6 when the sieve 2 is turned over 180 degrees, the inclination angle δ of the skirt portion 3 is set within the range θ>δ>θ/2.
また、漏斗６の広口部の直径D2は、篩２から
落下した粒子を漏斗６外へ飛散させないために、
網４の直径D1よりも大きくされる。漏斗６の広
口上端と網４との距離P2は、スカート部３の高さ
P1よりも大きくされる。漏斗６の落口部短管直径
D3は、計量管７の円筒９の内径D5よりも小さく
され、計量管７の上端にある漏斗部上端の内径
D4は、上記内径D5の２倍とされる。これは、漏
斗６より流下したスラリーを、漏斗部８からオー
バーフローすることなく、計量管７へ流入させる
ためである。このように構成されたのが、この発
明に係る装置である。 In addition, the diameter D 2 of the wide mouth part of the funnel 6 is set so that the particles falling from the sieve 2 are not scattered outside the funnel 6.
The diameter D1 of the net 4 is made larger. The distance P 2 between the upper end of the wide mouth of the funnel 6 and the net 4 is the height of the skirt portion 3
P is made larger than 1 . Diameter of the short tube at the opening of funnel 6
D3 is smaller than the inner diameter D5 of the cylinder 9 of the measuring tube 7, and is the inner diameter of the upper end of the funnel at the upper end of the measuring tube 7.
D4 is twice the inner diameter D5 . This is to allow the slurry flowing down from the funnel 6 to flow into the measuring tube 7 without overflowing from the funnel portion 8. The device according to the present invention is configured in this manner.
次に、第１図に示した装置を用いて、この発明
方法を実施するときの一実施態様を説明する。ま
ず、篩のスカート部３を上に向けて篩２を固定
し、篩２下方には漏斗６と計量管７とをこの順序
に固定し、計量管７の細管１１を図示していない
アスピレーターに連結しておく。次いで、分析し
ようとする粒子が含まれているスラリーを篩２の
中へ流入させる。すると、スラリー中の水はスラ
リー中の小粒子を伴つて篩２から流下し、漏斗６
を経て計量管７内へ入る。計量管７内にはフイル
ター１０が設けられているから、小粒子はフイル
ター１０上に堆積し、水だけが細管１１を通つて
排出される。 Next, one embodiment of the method of this invention will be described using the apparatus shown in FIG. First, the sieve 2 is fixed with the skirt part 3 of the sieve facing upward, the funnel 6 and the measuring tube 7 are fixed in this order below the sieve 2, and the thin tube 11 of the measuring tube 7 is attached to an aspirator (not shown). Keep it connected. The slurry containing the particles to be analyzed is then allowed to flow into the sieve 2. Then, the water in the slurry flows down from the sieve 2 along with the small particles in the slurry and flows into the funnel 6.
It enters into the measuring tube 7 through. A filter 10 is provided in the metering tube 7 so that small particles are deposited on the filter 10 and only water is discharged through the capillary tube 11.
篩２の網４上には、スラリー中の大粒子が残さ
れているわけであるが、この大粒子中にはなお
往々にして小粒子の混在していることがある。そ
こで、この小粒子を網４から落下させるために、
ノズル１から水を噴出させて、網４上の大粒子を
充分に洗浄する。こうして、粒子の分級を完全な
らしめたのち、計量管７内にも水を流して、細粒
を洗浄する。ときには、細管１１から計量管７内
に水を逆流させて、小粒子を洗浄する。 Large particles in the slurry remain on the screen 4 of the sieve 2, but small particles are often mixed in these large particles. Therefore, in order to make these small particles fall from the net 4,
Water is jetted from a nozzle 1 to thoroughly wash large particles on a screen 4. After the particles have been completely classified in this way, water is also flowed into the measuring tube 7 to wash the fine particles. Sometimes, water is flowed back from the capillary tube 11 into the metering tube 7 to wash small particles.
その後、細管１１から減圧吸引することによ
り、計量管７内の小粒子から水分を除き、筒９に
施された目盛により小粒子の量を読み取る。次い
で、計量管７から小粒子を取り出し、充分洗浄し
てのち、計量管７の上方にある篩２を軸１４の周
りに反転させて、篩２内の大粒子を計量管７の中
へ流入させる。大粒子の流入を確実にするため
に、ノズル１から水を噴出させる。その後は、小
粒子の場合と同様にして、計量管７内の大粒子を
洗浄し、減圧吸引により水分を除いてのち、目盛
から大粒子の量を読み取る。別に予じめ作成した
検量線を用いて、上記小粒子の量と大粒子の量と
から両粒子の重量割合を算出する。この操作を目
の大きさの異なる種々の篩２について行えば、粒
子分布の状態を知ることができる。この発明方法
は、このような分析方法である。 Thereafter, moisture is removed from the small particles in the measuring tube 7 by vacuum suction through the thin tube 11, and the amount of small particles is read from the scale provided on the tube 9. Next, after taking out the small particles from the measuring tube 7 and washing them thoroughly, the sieve 2 above the measuring tube 7 is turned around around the shaft 14, and the large particles in the sieve 2 flow into the measuring tube 7. let Water is ejected from the nozzle 1 to ensure the inflow of large particles. Thereafter, in the same manner as for small particles, the large particles in the measuring tube 7 are washed, water is removed by vacuum suction, and the amount of large particles is read from the scale. The weight ratio of both particles is calculated from the amount of small particles and the amount of large particles using a separately prepared calibration curve. By performing this operation on various sieves 2 with different mesh sizes, it is possible to know the state of particle distribution. The method of this invention is such an analysis method.
なお、計量管７の上端に設けた漏斗状部８を大
きいものとするときは、漏斗状部８を以つて漏斗
６の代用とし、漏斗６を使用しないこととするこ
ともできる。ノズル１としては、網４の全面に水
を噴出させるように、充円錐型ノズルを用いる。
また篩２を回転させるための軸１４は、篩２の外
方において網４と平行に延び、網４の延長部近く
に位置させる。フイルター１０としては、すべて
の粒子を通過させないほど細かい孔を持つたもの
を使用する。また、細管１１は、切替コツクを介
してアスピレーター又は水道水管に連結し、減圧
吸引と注水とを繰り返し使用できるようにするこ
とが望ましい。 In addition, when the funnel-shaped part 8 provided at the upper end of the measuring tube 7 is made larger, the funnel-shaped part 8 can be used as a substitute for the funnel 6, and the funnel 6 can be omitted. As the nozzle 1, a full conical nozzle is used so as to jet water over the entire surface of the net 4.
Moreover, the shaft 14 for rotating the sieve 2 extends parallel to the screen 4 on the outside of the sieve 2 and is located near the extension of the screen 4. As the filter 10, one having pores so small as not to allow all particles to pass through is used. Further, it is desirable that the thin tube 11 be connected to an aspirator or a tap water pipe via a switching knob so that vacuum suction and water injection can be repeatedly used.
図は、この発明に係る装置の一部切欠側面図で
ある。図において、１はノズル、２は篩、３は篩
のスカート部、４は網、５は篩２の短筒、６は漏
斗、７は計量管、８は計量管７の漏斗部、９は計
量管７の円筒、１０はフイルター、１１は細管、
１２は支柱、１３は摘み、１４は回転軸である。
The figure is a partially cutaway side view of the device according to the invention. In the figure, 1 is a nozzle, 2 is a sieve, 3 is a skirt part of the sieve, 4 is a screen, 5 is a short tube of the sieve 2, 6 is a funnel, 7 is a measuring tube, 8 is a funnel part of the measuring tube 7, and 9 is a funnel part of the measuring tube 7. The measuring tube 7 is a cylinder, 10 is a filter, 11 is a thin tube,
12 is a support, 13 is a knob, and 14 is a rotating shaft.
Claims (1)
子に水を振りかけ、篩を通過した粒子を漏斗に通
してフイルター付きの計量管に導き、フイルター
上で脱水し、フイルター上の堆積粒子量を測定し
て小粒子量とし、その後篩を反転させ、篩上の粒
子を同様な計量管に移して大粒子量を測定し、こ
のような操作を異なる篩について行うことを特徴
とする、粒子の湿式篩分析方法。 ２ 水噴出ノズルと、篩と、漏斗と、計量管と
を、この順次に上から下へと並べ、篩を反転可能
にし、篩を通過した水及び粒子が漏斗を経て計量
管内に落下するようにし、計量管の下部にフイル
ターと細管とをこの順序に付設し、フイルター上
の管を透明体で構成した粒子の湿式篩分析装置。[Claims] 1. Flow the slurry onto a sieve, sprinkle water on the particles remaining on the sieve, introduce the particles that have passed through the sieve through a funnel into a measuring tube with a filter, and dehydrate on the filter. Measure the amount of particles deposited on the filter to determine the amount of small particles, then invert the sieve, transfer the particles on the sieve to a similar measuring tube to measure the amount of large particles, and repeat this operation for different sieves. A wet sieve analysis method for particles, characterized by: 2 Arrange the water jet nozzle, sieve, funnel, and measuring tube in this order from top to bottom, and make the sieve reversible so that the water and particles that have passed through the sieve fall through the funnel into the measuring tube. A wet sieve analyzer for particles in which a filter and a thin tube are attached in this order to the bottom of a measuring tube, and the tube above the filter is made of a transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15397179A JPS5676033A (en) | 1979-11-27 | 1979-11-27 | Wet type sieve analytical method of particle and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15397179A JPS5676033A (en) | 1979-11-27 | 1979-11-27 | Wet type sieve analytical method of particle and device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5676033A JPS5676033A (en) | 1981-06-23 |
| JPS6133459B2 true JPS6133459B2 (en) | 1986-08-02 |
Family
ID=15574071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15397179A Granted JPS5676033A (en) | 1979-11-27 | 1979-11-27 | Wet type sieve analytical method of particle and device thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5676033A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6453758B1 (en) * | 1999-06-11 | 2002-09-24 | Msp Corporation | Efficient high-productivity cascade impactors |
| JP6252831B2 (en) * | 2013-09-18 | 2017-12-27 | 清水建設株式会社 | Particle size distribution measuring instrument |
| CN106018203B (en) * | 2016-06-06 | 2018-09-18 | 武汉理工大学 | A kind of Simple And Practical wet elutriator |
-
1979
- 1979-11-27 JP JP15397179A patent/JPS5676033A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5676033A (en) | 1981-06-23 |
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