JP2012166178A - Method and device for blending highly viscous liquid with granular powder - Google Patents
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- 238000002156 mixing Methods 0.000 title claims abstract description 57
- 239000007788 liquid Substances 0.000 title claims abstract description 55
- 239000000843 powder Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000011148 porous material Substances 0.000 claims abstract description 12
- 239000008187 granular material Substances 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 14
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 8
- 239000000292 calcium oxide Substances 0.000 claims description 6
- 235000012255 calcium oxide Nutrition 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 239000011398 Portland cement Substances 0.000 claims 1
- 239000004480 active ingredient Substances 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims 1
- 239000000920 calcium hydroxide Substances 0.000 claims 1
- 235000011116 calcium hydroxide Nutrition 0.000 claims 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims 1
- 229910000514 dolomite Inorganic materials 0.000 claims 1
- 239000010459 dolomite Substances 0.000 claims 1
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 description 6
- 229920001353 Dextrin Polymers 0.000 description 6
- 239000004375 Dextrin Substances 0.000 description 6
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 description 6
- 235000019425 dextrin Nutrition 0.000 description 6
- 238000007670 refining Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000011027 product recovery Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
Description
本発明は、粉粒体に対して、相対的に少量であって粘度の高い液体を均一に混合する方法と、その方法の実施に使用する装置に関する。 The present invention relates to a method for uniformly mixing a liquid with a relatively small amount and high viscosity with respect to a granular material, and an apparatus used for carrying out the method.
二種以上の粉粒体を混合する手段のひとつは、対象物を容器に入れ、その容器に回転や振動を加えることであり、いまひとつは、容器を固定しておいて、その内部に設けた羽根やスクリューによって、装入した対象物を撹拌することである。このような原理にもとづく種々の混合装置が、市場に出回っている。一方、液体と固体とを混合しようとするとき、液体の粘度が低い場合には、粉粒体の混合装置と同じ原理の装置を用いても混合が可能であるが、液体の粘度が高い場合には、均一に混合することが困難になる。とりわけ、固体に対する液体の混合比率が小さい場合には、均一な混合はほとんど不可能である。 One of the means to mix two or more kinds of granular materials is to put the object in a container and apply rotation or vibration to the container. The other is to fix the container and provide it inside. It is to stir the charged object with a blade or a screw. Various mixing devices based on this principle are on the market. On the other hand, when trying to mix liquid and solid, if the viscosity of the liquid is low, mixing is possible using the same principle as the powder mixing device, but the viscosity of the liquid is high It becomes difficult to mix uniformly. In particular, uniform mixing is almost impossible when the mixing ratio of the liquid to the solid is small.
出願人は、軟弱地盤の強化を目的として土壌に添加する土質安定化処理材、たとえば生石灰が、取扱いおよび施工時に、それに含まれている微細粉末に起因して発塵することを抑制する防塵対策として、これまで多用されているフィブリル化性フッ素樹脂に代えて糖類を使用することを着想したが、その実施に当って、相対的に大量の粉粒体に対して、相対的に少量である糖類の水溶液または水性ゲルないしは溶融物という、きわめて高粘度の液体を均一に混合する手段の実現を必要とした。 Applicant has a dust-proof measure to prevent soil stabilization treatment materials added to the soil for the purpose of strengthening soft ground, such as quick lime, from generating dust due to the fine powders contained in it during handling and construction. As an idea, instead of the fibrillated fluororesin that has been widely used so far, it was conceived to use saccharides. It was necessary to realize a means for uniformly mixing an extremely high-viscosity liquid such as an aqueous solution of sugar or an aqueous gel or melt.
本発明の目的は、上記した問題を解決し、相対的に大量の粉粒体に対して、相対的に少量である粘度の高い液体を、均一に混合することができる方法を提供することにある。その方法の実施に使用する装置を提供することも、本発明の目的に含まれる。 An object of the present invention is to solve the above-described problems and provide a method capable of uniformly mixing a relatively small amount of a highly viscous liquid with respect to a relatively large amount of powder particles. is there. It is also within the scope of the present invention to provide an apparatus for use in performing the method.
本発明の粉粒体に高粘度の液体を混合する方法は、高粘度の液体に対して遠心力を作用させることにより、放射状に噴出する微細な連続流または分散流を形成させ、この連続流または分散流を、その外側に連続的に供給されている粉粒体に対して接触させ、混合することからなる。液体の粘度は、常温で６００ｃｐ以上の高粘度が好ましい。 In the method of mixing a high viscosity liquid in the granular material of the present invention, a centrifugal force is applied to the high viscosity liquid to form a fine continuous flow or a dispersed flow that is ejected radially. Alternatively, the dispersed flow is brought into contact with and mixed with the granular material continuously supplied to the outside thereof. The viscosity of the liquid is preferably a high viscosity of 600 cp or more at room temperature.
上記の混合方法を実施するための、本発明の粉粒体に高粘度の液体を混合する装置は、図１に装置の主要部の分解図を示し、図２にそれらを組み立てて附属する構成部分を加えた全体を示すように、小径の有底円筒（１１）の中心に回転軸（１２）を取り付けるとともに側壁に多数の細孔（１３）を設けた液体微細化手段（１）、その外側にあって、液体微細化手段を取り囲む筒状体（２１）と、この筒状体の上部において、落下する粉粒体を大径の円筒の内壁に導く、対称的に配置された複数の粉粒体ガイド（２２）とからなる混合容器（２）、ならびに、この混合容器の上方にあって、中径の円筒（３１）と、その内部で回転し、供給される粉粒体を中径の円筒の内壁に向けて粉粒体ガイド上に落下させるための円形の分散板（３２）とからなる均等供給手段（３）から構成され、回転駆動手段（４）、粉粒体定量供給機（５）および生成した混合物を引取る回収手段（図示してない）を備えてなる混合装置である。 An apparatus for mixing a high-viscosity liquid into the granular material of the present invention for carrying out the above mixing method is shown in an exploded view of the main part of the apparatus in FIG. The liquid refining means (1) having a rotating shaft (12) attached to the center of a small-diameter bottomed cylinder (11) and a plurality of pores (13) provided on the side wall, A plurality of symmetrically arranged cylindrical bodies (21) that surround the liquid micronization means and that are arranged at the upper part of the cylindrical body to guide the falling powder particles to the inner wall of the large-diameter cylinder. A mixing container (2) comprising a powder particle guide (22), and a medium diameter cylinder (31) above the mixing container and rotating inside the mixing container (2), the supplied powder particles A circular dispersion plate (32) for dropping onto the granular material guide toward the inner wall of the diameter cylinder A mixing apparatus comprising an even supply means (3) comprising a rotation drive means (4), a powder and granular constant supply machine (5), and a recovery means (not shown) for collecting the produced mixture. is there.
本発明の混合方法によるときは、粉粒体に対してその重量の１〜２％というような少量の液体、たとえば糖類を、均一に混合することが可能になる。本発明の混合装置は、簡単な構造で、従来困難であった大量の粉粒体に少量の液体を均一に混合するという操作を容易に実現することができる。 When the mixing method of the present invention is used, it is possible to uniformly mix a small amount of liquid, for example, sugar, such as 1 to 2% of its weight with respect to the granular material. The mixing device of the present invention can easily realize an operation of uniformly mixing a small amount of liquid into a large amount of powder particles, which has been difficult in the past, with a simple structure.
本発明の装置は、図１に示すように、液体微細化手段（１）、混合容器（２）および均等供給手段（３）を主要な構成部分とし、図２に示すように、それら主要構成部分に対して、回転駆動手段（４）、粉粒体定量供給機（５）および混合物を引取る回収手段（図示してない）を付加してなる。 As shown in FIG. 1, the apparatus of the present invention has a liquid refinement means (1), a mixing container (2), and an equal supply means (3) as main components, and as shown in FIG. A rotation drive means (4), a granular material quantitative supply machine (5), and a collection means (not shown) for collecting the mixture are added to the part.
液体微細化手段（１）は、小径の有底円筒（１１）の中心に回転軸（１２）を取り付けるとともに側壁に多数の細孔（１３）を設けたものである。この有底円筒は、内筒および外筒からなる二重の円筒であってもよく、その場合は、多数の細孔は外筒に設け、内筒と外筒の間に液体を供給することはもちろんである。細孔の径やその数は、液体の粘度や、粉粒体との混合比率、あるいは混合の速度などに応じて選択する。 The liquid refinement means (1) has a rotating shaft (12) attached to the center of a small-diameter bottomed cylinder (11) and a large number of pores (13) provided on the side wall. The bottomed cylinder may be a double cylinder composed of an inner cylinder and an outer cylinder. In that case, a large number of pores are provided in the outer cylinder, and liquid is supplied between the inner cylinder and the outer cylinder. Of course. The diameter and the number of the pores are selected according to the viscosity of the liquid, the mixing ratio with the granular material, the mixing speed, and the like.
混合容器（２）は、液体微細化手段（１）の外側にあって、液体微細化手段を取り囲む筒状体（２１）と、この筒状体の上部において、落下する粉粒体を筒状体の内壁に導く、対称的に配置された複数の粉粒体ガイド（２２）とからなる。筒状体（２１）は、その内壁に沿って粉粒体を落下させ、その間に微細な液体の流れを接触させて混合するものであるから、図示したような、中心が回転軸と同心である大径の円筒であることが好ましいが、角筒であってもよいし、柔軟な材料で製造した、したがってその形状が多少変化する筒状のものであってもよい。 The mixing container (2) is outside the liquid micronization means (1), and the cylindrical body (21) surrounding the liquid micronization means and the powder particles falling at the upper part of this cylindrical body are cylindrical. It consists of a plurality of symmetrically arranged powder guides (22) leading to the inner wall of the body. The cylindrical body (21) is for dropping the powder particles along the inner wall and mixing the fine liquid flow in contact therewith, so that the center as shown is concentric with the rotation axis. Although it is preferably a certain large-diameter cylinder, it may be a rectangular tube, or may be a cylindrical one made of a flexible material, and thus its shape slightly changes.
均等供給手段（３）は、この混合容器の上方にあって、中径の円筒（３１）と、その内部で回転し、供給される粉粒体を中径の円筒の内壁に向けて粉粒体ガイド上に落下させるための円形の分散板（３２）とからなる。分散板は、図示した構成においては液体微細化手段と回転軸を共通にしているが、別々に回転させてもよい。いずれにせよ、粉粒体定量供給機（５）によって１箇所に供給された粉粒体を、遠心力によって円周方向に均一に飛散させる。この機能は、円板状であればそなえているが、より均一に飛散させるために、放射方向に走る羽根状の突起を与えることもでき、それを有することが好ましい。図１の態様は、直径方向の２枚羽根付きのものである。 The uniform supply means (3) is above the mixing container and rotates inside the medium-diameter cylinder (31) and the powder particles supplied to the inner wall of the medium-diameter cylinder. It consists of a circular dispersion plate (32) for dropping onto the body guide. In the configuration shown in the figure, the dispersion plate has the same liquid refining means and the rotation shaft, but may be rotated separately. In any case, the powder supplied to one place by the powder fixed quantity supply machine (5) is uniformly scattered in the circumferential direction by centrifugal force. This function is provided in the form of a disk, but in order to scatter more uniformly, it is also possible to provide a blade-like protrusion running in the radial direction, and it is preferable to have it. The embodiment of FIG. 1 has a diametrical two blades.
回転駆動手段（４）を回転させると、小径の有底円筒（１１）内の液体は、遠心力によって細孔から微細な流れになって、放射方向に噴出する。この流れが筒状体（２１）の内壁に沿って流下する粉粒体に衝突し、混合が実現する。容易に理解されるように、このとき粉粒体の落下流の厚さが厚いと、その内側の部分を落下してくる粉粒体だけに液体が衝突し、外側の部分を落下してくる粉粒体との間では混合が行なわれず、均一な混合という目的が達成できなくなる。したがって、落下流の厚さを薄くするとともに、その厚さが、円周方向に関して均一になるように図ることが好ましい。つまり、粉粒体の落下流の厚さを制御する機能を、均等供給手段（３）にもたせることが望ましい。 When the rotation driving means (4) is rotated, the liquid in the small-diameter bottomed cylinder (11) becomes a fine flow from the pores by centrifugal force and is ejected in the radial direction. This flow collides with the granular material flowing down along the inner wall of the cylindrical body (21), and mixing is realized. As can be easily understood, if the falling flow of the granular material is thick at this time, the liquid collides only with the granular material falling on the inner part and falls on the outer part. Mixing is not performed between the powder and the granular material, and the purpose of uniform mixing cannot be achieved. Therefore, it is preferable to reduce the thickness of the falling flow and to make the thickness uniform in the circumferential direction. That is, it is desirable that the uniform supply means (3) has a function of controlling the thickness of the falling flow of the granular material.
液体微細化手段（１）の小径の有底円筒（１１）への液体の補給は、液体が高粘度になるほど困難である。しかし、それほど高粘度でなければ、ピストン状の装置を用いて液体を補給することができる。遠心力を加えられる液体の量が一定であれば、細孔から液体が噴出する状況が一定であり、均一な混合を続ける上で望ましいことはいうまでもない。補給が困難であれば、有底円筒を比較的大容量なものとなるように装置を構成し、大量の液体を装入しておいて、長時間の連続操業が可能なように図るべきである。時間の経過につれて液体が消費され、それにともなって遠心力を加えられる液体の液面が低下し、噴霧に利用できる細孔の数が減って粉粒体に混合される液体の量が減少することになるから、それと見合うように粉粒体の供給量も減少させるといった対策が望まれる。 Replenishment of the liquid to the small-diameter bottomed cylinder (11) of the liquid refinement means (1) is more difficult as the liquid becomes higher in viscosity. However, if the viscosity is not so high, the liquid can be replenished using a piston-like device. Needless to say, if the amount of liquid to which the centrifugal force is applied is constant, the state in which the liquid is ejected from the pores is constant, which is desirable for continuing uniform mixing. If replenishment is difficult, the device should be configured so that the bottomed cylinder has a relatively large capacity, and a large amount of liquid should be charged to enable continuous operation for a long time. is there. As the liquid is consumed over time, the liquid level of the liquid to which the centrifugal force is applied is lowered, and the number of pores available for spraying is reduced and the amount of liquid mixed with the granular material is reduced. Therefore, it is desired to take measures such as reducing the supply amount of the granular material to match it.
小径の有底円筒（１１）として、外径が約７０ｍｍで高さが８０ｍｍのアルミ製円筒を用い、その側壁に、孔径１．０ｍｍの細孔（１３）を、円周方向に２１箇所、軸方向に２０箇所、全部で４２０箇所設けたものを回転軸（１２）にとりつけ、２枚羽つきの分散板（３２）をもち、混合容器には円周方向を六等分する粉粒体ガイド（２２）を配置した装置を、図示したように組み立てた。 As a small-diameter bottomed cylinder (11), an aluminum cylinder having an outer diameter of about 70 mm and a height of 80 mm is used, and pores (13) having a hole diameter of 1.0 mm are provided on the side wall thereof at 21 locations in the circumferential direction. A granular guide that has 20 locations in the axial direction, a total of 420 locations, is attached to the rotating shaft (12), has a two-bladed dispersion plate (32), and the mixing vessel divides the circumferential direction into six equal parts. The device in which (22) was placed was assembled as shown.
粉粒体としては、生石灰を粉砕した粉末をフルイ分け、１ｍｍアンダーの微粉末を得て使用した。これに混合すべき高粘度の液体としては、デキストリン（粘度５８００ｃｐ）またはマルトース（粘度６２０ｃｐ）を選んだ。粉粒体と高粘度液体との混合比率のコントロールは、粉粒体の供給速度を調節することによって行なった。１回の試験に使用した生石灰の量は、１ｋｇである。 As the granular material, powder obtained by pulverizing quicklime was divided into sieves, and 1 mm under fine powder was obtained and used. Dextrin (viscosity 5800 cp) or maltose (viscosity 620 cp) was selected as the high viscosity liquid to be mixed therewith. The mixing ratio of the powder and the high viscosity liquid was controlled by adjusting the supply speed of the powder. The amount of quicklime used in one test is 1 kg.
混合の均一性は、混合製品回収手段の円周方向に９０度ずつ離れた４箇所から、同じ量の混合物をサンプリングし、ＪＩＳ Ｒ ９０１１「石灰の試験方法」に定める方法に従って、サンプルを１２５０℃に加熱し、発生した全ＣＯ２量を比較し、デキストリンまたはマルトースの燃焼により発生するＣＯ２量を算出することによって、測定した。このとき発生する全ＣＯ２には、サンプル生石灰中に残存していた未焼成ＣａＣＯ３から発生するＣＯ２も含まれるが、その量はどのサンプルにおいても一定であることを、事前の分析で確認ずみである。つまり、全ＣＯ２量の差が、デキストリンまたはマルトースの、すなわち高粘度液体の混合量の差ということになる。 The uniformity of mixing is determined by sampling the same amount of the mixture from four locations 90 degrees apart in the circumferential direction of the mixed product recovery means, and then subjecting the sample to 1250 ° C. according to the method specified in JIS R 9011 “Testing method for lime” And the total amount of CO 2 generated was compared, and the amount of CO 2 generated by the combustion of dextrin or maltose was calculated. The total CO 2 generated at this time includes CO 2 generated from the uncalcined CaCO 3 remaining in the sample quicklime, but it is confirmed by prior analysis that the amount is constant in any sample. It's a little. That is, the difference in the total amount of CO 2 is the difference in the mixing amount of dextrin or maltose, that is, a high viscosity liquid.
表１にデキストリンの、表２にマルトースの実施結果を示す。数値は各々３回の平均値である。デキストリンまたはマルトースのどちらの場合も、高い均一性を以て生石灰粉末への混合が行なわれたことが確認できた。 Table 1 shows the results of the dextrin, and Table 2 shows the results of maltose. Each numerical value is an average of three times. In both cases of dextrin and maltose, it was confirmed that mixing with quicklime powder was performed with high uniformity.
表１ デキストリン混合量比（０度位置のＣＯ２量を基準とする）
表２ マルトースの混合量比（０度位置のＣＯ２量を基準とする）
１ 液体微細化手段
１１ 小径の有底円筒
１２ 回転軸
１３ 細孔
２ 混合容器
２１ 筒状体（大径の円筒）
２２ 粉粒体ガイド
３ 均等供給手段
３１ 中径の円筒
３２ 分散板
４ 回転駆動手段
５ 粉粒体定量供給機
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| JP2011031465A Withdrawn JP2012166178A (en) | 2011-02-16 | 2011-02-16 | Method and device for blending highly viscous liquid with granular powder |
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| Country | Link |
|---|---|
| JP (1) | JP2012166178A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261048A (en) * | 2018-10-29 | 2019-01-25 | 南京高正农用化工有限公司 | Pesticide solid-liquid mixer |
| CN109795140A (en) * | 2019-02-25 | 2019-05-24 | 山东吉威医疗制品有限公司 | A kind of liquid dispersion infuser device |
| KR102028953B1 (en) * | 2019-02-01 | 2019-10-07 | 비아로지스 주식회사 | Biological Material Manufacturing Device and Driving Method Thereof |
-
2011
- 2011-02-16 JP JP2011031465A patent/JP2012166178A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261048A (en) * | 2018-10-29 | 2019-01-25 | 南京高正农用化工有限公司 | Pesticide solid-liquid mixer |
| CN109261048B (en) * | 2018-10-29 | 2024-05-03 | 南京高正农用化工有限公司 | Pesticide solid-liquid mixing device |
| KR102028953B1 (en) * | 2019-02-01 | 2019-10-07 | 비아로지스 주식회사 | Biological Material Manufacturing Device and Driving Method Thereof |
| US11466239B2 (en) | 2019-02-01 | 2022-10-11 | Viea Logis Co., Ltd. | Biological material manufacturing device and driving method thereof |
| CN109795140A (en) * | 2019-02-25 | 2019-05-24 | 山东吉威医疗制品有限公司 | A kind of liquid dispersion infuser device |
| CN109795140B (en) * | 2019-02-25 | 2024-02-06 | 山东吉威医疗制品有限公司 | Liquid dispersion soaking device |
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