JPH10175736A - Powder and grain clogging preventing device - Google Patents
Powder and grain clogging preventing deviceInfo
- Publication number
- JPH10175736A JPH10175736A JP33879896A JP33879896A JPH10175736A JP H10175736 A JPH10175736 A JP H10175736A JP 33879896 A JP33879896 A JP 33879896A JP 33879896 A JP33879896 A JP 33879896A JP H10175736 A JPH10175736 A JP H10175736A
- Authority
- JP
- Japan
- Prior art keywords
- air
- pipe
- pipe member
- granular material
- transport
- 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.)
- Pending
Links
Landscapes
- Air Transport Of Granular Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この出願の発明は、粉粒体閉
塞防止装置に関するものである。さらに詳しくは、この
出願の発明は、各種の粉粒体の管路輸送において、その
閉塞を防止して効率よく円滑に安定した粉粒体の輸送を
行うことのできる粉粒体閉塞防止装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing blockage of a granular material. More specifically, the invention of this application relates to an apparatus for preventing clogging of powders and granules which can prevent the blockage and transport the powders and granules efficiently and smoothly in the pipeline transport of various powders and granules. Things.
【０００２】[0002]
【従来の技術とその課題】従来より、各種の粉粒体の輸
送では、管路内の空気の圧力差を用いて粉粒体を輸送す
る管路輸送方式が知られている。そして、大規模設備と
もなると、たとえば図４のように、多数の配管系を用い
て粉粒体を輸送する多管系吸引式空気輸送方式も現実的
に採用されている。この図４に例示した多管系吸引式空
気輸送方式では、３つの輸送管（５０）（５１）（５
２）に、各々サイクロン（５３）（５４）（５５）が接
続され、各サイクロンは集合管（５６）を介してターボ
ブロワー（５７）に接続されている。そして、ターボブ
ロワー（５７）はバグフィルター（６１）へと接続され
ている。ターボブロワー（５７）を稼動することによ
り、ホッパー（６２）（６３）（６４）内の粉粒体は、
各輸送管（５０）（５１）（５２）内を吸引輸送され、
サイクロン（５３）（５４）（５５）に到達するように
なっている。2. Description of the Related Art Conventionally, in transporting various kinds of powders and granules, there is known a pipe transport system in which powders are transported by using a pressure difference of air in a pipe. For large-scale equipment, for example, as shown in FIG. 4, a multi-pipe suction type pneumatic transport system for transporting powder and granules using a large number of piping systems is also practically employed. In the multi-tube suction air transport system illustrated in FIG. 4, three transport pipes (50) (51) (5)
2), cyclones (53), (54) and (55) are connected to each other, and each cyclone is connected to a turbo blower (57) via a collecting pipe (56). And the turbo blower (57) is connected to the bag filter (61). By operating the turbo blower (57), powder in the hopper (62) (63) (64)
Each of the transport pipes (50), (51), and (52) is suction-transported,
It reaches the cyclones (53), (54) and (55).
【０００３】しかしながら、このような管路輸送のため
の手段としての多管系吸引式空気輸送方式においては、
たとえば、図４の左端の輸送管（５０）の粉粒体流量が
増大したとすると、ターボブロワー（５７）が吸引する
風量は中央の輸送管と右端の輸送管に片寄り、左端の輸
送管（５０）の風量は減少し、左端の輸送管（５０）の
内部に粉粒体が付着し、結果として、左端の輸送管（５
０）の閉塞が生じるという問題が避けられなかった。[0003] However, in such a multi-tube suction type pneumatic transportation system as a means for such pipeline transportation,
For example, assuming that the flow rate of the granular material in the transport pipe (50) at the left end in FIG. 4 increases, the air volume sucked by the turbo blower (57) is biased toward the central transport pipe and the transport pipe at the right end, and the transport pipe at the left end. The air volume of (50) decreases, and the granular material adheres to the inside of the leftmost transport pipe (50). As a result, the leftmost transport pipe (5)
The problem of blockage 0) being inevitable.
【０００４】このため、多管系吸引輸送方式において
は、通常は、必要以上の風量を輸送管内に流しているこ
とから、必要動力の増加でエネルギーの無駄な消費が非
常に大きかった。このような問題を解決するために、た
とえば、風量一定装置（５９）をサイクロンの排出管側
に設置し、常に一定の風量を確保し、輸送管閉塞のトラ
ブルを解消しようとする方法も試みられている。[0004] For this reason, in the multi-tube suction transport system, an excessive amount of air is normally flown into the transport pipe, and wasteful consumption of energy due to an increase in required power is very large. In order to solve such a problem, for example, a method of installing a constant air volume device (59) on the discharge pipe side of the cyclone to always maintain a constant air volume and to solve the problem of blockage of the transport pipe has been attempted. ing.
【０００５】この風量一定装置は、設定以上の風量が流
れようとすると内部の柱状体が上方に移動して管路を絞
り、設定値以下になった場合は、逆に柱状体が下降して
管路を拡げることになる。その結果、風量は一定に保た
れる。しかしながら、このような風量一定装置を用いた
粉粒体閉塞防止方法では、空気の流れを制御することに
よって閉塞を未然に防止するものであるが、一度閉塞し
かかった輸送管に関しては、その閉塞を回復するだけの
能力を持っていないのが実情である。特に、粒径の非常
に小さいサブミクロンオーダの粉体に関しては、各輸送
管内の流量が微妙に異なるだけで閉塞がおこりやすく、
このような風量一定装置を用いた粉粒体閉塞防止方法
は、サブミクロンオーダの粉体の輸送には向いていな
い。[0005] In this air volume constant device, when an air volume exceeding a set value is to flow, the internal columnar body moves upward and narrows the pipeline, and when the air volume falls below the set value, the columnar body descends. The pipe will be expanded. As a result, the air volume is kept constant. However, in the method for preventing blockage of the granular material using such a constant air volume device, the blockage is prevented beforehand by controlling the flow of air. The fact is that they don't have the ability to recover. In particular, with regard to powder having a very small particle size on the order of submicrons, clogging is likely to occur only by slightly different flow rates in each transport pipe,
Such a method for preventing blockage of a granular material using a constant air volume device is not suitable for transporting powder in the order of submicron.
【０００６】そこで、この発明は、以上の通りの従来技
術の欠点を鑑みてなされたものであり、閉塞しかかった
輸送管に関しても、その閉塞を回復するだけの能力を持
ち、粒径の非常に小さい粉体に関しても閉塞を回避する
ことが可能である、新しい粉粒体閉塞防止装置を提供す
ることを目的としている。Accordingly, the present invention has been made in view of the above-mentioned drawbacks of the prior art, and has the ability to recover the blockage even in the case of a transport pipe that is about to be blocked, and has an extremely small particle size. It is an object of the present invention to provide a new device for preventing blockage of powder and granular material, which can prevent blockage of even very small powder.
【０００７】[0007]
【課題を解決するための手段】この出願の発明は、上記
の課題を解決するものとして、剛性外管部の内周面に、
空気隙間を介して、柔軟で可変形な中空内管部材を配設
した粉粒体閉塞防止装置であって、内管部材の中空部で
粉粒体を管路輸送するに際し、前記外管部の内周表面と
前記内管部材との間に設けた空気隙間に圧縮空気を流通
させて内管部材を変形振動させ、この振動によって粉粒
体の管路内での閉塞を防止することを特徴とする粉粒体
閉塞防止装置を提供する。Means for Solving the Problems The invention of this application solves the above-mentioned problems by providing an inner peripheral surface of a rigid outer tube portion with:
A device for preventing clogging of a granular material provided with a flexible and deformable hollow inner pipe member through an air gap, wherein the outer pipe portion is used when the granular material is transported in a pipeline in a hollow portion of the inner pipe member. The compressed air is circulated through an air gap provided between the inner peripheral surface of the inner pipe member and the inner pipe member to deform and vibrate the inner pipe member, and to prevent blockage of the granular material in the pipe by the vibration. A device for preventing clogging of a granular material is provided.
【０００８】[0008]
【発明の実施の形態】すなわち、この発明においては、
上記の構成によって、内管部材に対して振動を与えるこ
とにより、閉塞を直接的に防止し、さらに一度閉塞しか
かった輸送管に関しても、その閉塞を回復する。以下、
実施例を示し、さらに詳しくこの発明について説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS That is, in the present invention,
By vibrating the inner pipe member with the above configuration, the blockage is directly prevented, and the blockage of the transport pipe once blocked is recovered. Less than,
The present invention will be described in more detail with reference to Examples.
【０００９】[0009]
【実施例】この発明の粉粒体閉塞防止装置は、たとえ
ば、図１に例示したものをひとつの態様として示すこと
ができる。この装置例では、ホッパー（Ａ）内の粉粒体
（Ｂ）を、管路（Ｃ）内の負圧により吸引して粉粒体
（Ｂ）を管路（Ｃ）内で輸送しようとしている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus for preventing blockage of a granular material according to the present invention can be shown, for example, in one embodiment shown in FIG. In this example of the apparatus, the granular material (B) in the hopper (A) is sucked by the negative pressure in the pipeline (C) to transport the granular material (B) in the pipeline (C). .
【００１０】すなわち、この発明の粉粒体閉塞防止装置
では、空気流により変形振動する内管部材（１）と、空
気流により変形振動しない剛性のある外管部（２）とか
らなる２重管構造を有し、その２重管の空気隙間（３）
には、空気供給口（４）から圧縮空気を供給し、排出口
（５）より空気を排出して、空気流の振動により内管部
材（１）を振動させる。これによって粉粒体の管路内の
閉塞を防止する。That is, in the apparatus for preventing blockage of a granular material according to the present invention, the inner pipe member (1) deformed and vibrated by the air flow and the rigid outer pipe part (2) not deformed and vibrated by the air flow are doubled. It has a tube structure, and the air gap of the double tube (3)
, Compressed air is supplied from an air supply port (4), air is discharged from a discharge port (5), and the inner pipe member (1) is vibrated by the vibration of the air flow. This prevents blockage of the granular material in the pipeline.
【００１１】このとき、内管部材（１）の材質について
は、木綿や合成繊維でできた布、薄いプラスチックシー
トやフィルム、薄いゴムシートなどの空気流により変形
振動する物質を用いることができる。内管部材（１）に
ついては、輸送管内部（６）への空気の漏れがあっても
特に問題はない。また、その形状については、たとえ
ば、図１のＡ0 −Ａ0 断面を示した図２のように、外管
部（２）の内周面すべてからなる円筒状のものでもよい
し、また、図３に例示したように、空気供給口（４）と
排出口（５）とを連通するように部分的に設けてもよ
い。At this time, as the material of the inner tube member (1), a material which is deformed and vibrated by an air flow, such as a cloth made of cotton or synthetic fiber, a thin plastic sheet or film, or a thin rubber sheet can be used. Regarding the inner pipe member (1), there is no particular problem even if air leaks into the inside of the transport pipe (6). Further, as for the shape, for example, as shown in FIG. 2 showing a cross section taken along line A 0 -A 0 in FIG. 1, a cylindrical shape composed of the entire inner peripheral surface of the outer tube portion (2) may be used. As illustrated in FIG. 3, the air supply port (4) and the discharge port (5) may be partially provided so as to communicate with each other.
【００１２】また、空気供給口（４）および空気排出口
（５）の数は特に定めるものではないが、外管部（２）
の内周面に対して対称に設置することが内管部材（１）
の振動のばらつきが少ないことからも好ましい。また、
空気供給口（４）と空気排出口（５）の径が同じである
場合、空気排出口（５）の数が空気供給口（４）の数よ
りも多い方が、また、両者が同じ数の場合、空気排出口
（５）の径が空気供給口（４）の径よりも大きい方が、
よりスムースに空気が排出され、その結果、内管がよく
振動する。なお、図１の例においては、空気供給口
（４）は空気排出口（５）よりも下部に配設している
が、空気排出口（５）を空気供給口（４）よりも下部に
配置して、空気隙間（３）内の空気の流れと輸送管内部
（６）の空気の流れとが逆向きになってもよい。Although the numbers of the air supply ports (4) and the air discharge ports (5) are not particularly limited, the outer pipe section (2)
The inner pipe member (1) can be installed symmetrically with respect to the inner peripheral surface of the
It is also preferable because the fluctuation of the vibration is small. Also,
When the diameter of the air supply port (4) and the diameter of the air discharge port (5) are the same, it is better that the number of the air discharge ports (5) is larger than the number of the air supply ports (4). In the case of, when the diameter of the air discharge port (5) is larger than the diameter of the air supply port (4),
Air is discharged more smoothly, and as a result, the inner tube vibrates well. In the example of FIG. 1, the air supply port (4) is provided below the air discharge port (5), but the air discharge port (5) is provided below the air supply port (4). By arranging, the air flow in the air gap (3) and the air flow in the transport pipe interior (6) may be reversed.
【００１３】また、内管部材（１）の外管部（２）に対
する径についても特に定めるものではないが、およそ、
内管部材（１）の内径は、外管部（２）の内径の１％〜
２０％程度小さくすることが望ましい。あまり大きい内
径をもった内管であると、効率よく粉粒体を輸送するこ
とができない。また、この発明の装置の設置場所につい
ては、粉粒体が閉塞を生じやすいホッパー付近の輸送管
内や、ベンド部等が考慮される。The diameter of the inner pipe member (1) with respect to the outer pipe portion (2) is not particularly specified, but is approximately
The inner diameter of the inner pipe member (1) is 1% or more of the inner diameter of the outer pipe part (2).
It is desirable to make it about 20% smaller. If the inner pipe has an excessively large inner diameter, it is not possible to efficiently transport the granular material. Further, the installation location of the apparatus of the present invention is considered in the transport pipe near the hopper where the granular material is likely to be clogged, the bend portion, and the like.
【００１４】また、外管部（２）への内管部材（１）の
固定については、接着や嵌着、その他適宜な手段であっ
てよく、内管部材（１）自体の張りは多少たるませるよ
うに固定することが望ましい。このように内管に多少の
たるみがあった方が、内管はよく振動する。実際に、小
麦粉の吸引輸送を、ホッパー付近の垂直吸引管の端に合
成繊維からなる高さ７０ｃｍの内管部材（１）を固定
し、外管部（２）の下部にはφ１０の空気供給管を対称
に４本配設し、その空気供給口から５０ｃｍ上方には、
φ１０の空気排出管を対称に６本配設した装置を用いて
行ったところ次の結果を得た。The fixing of the inner tube member (1) to the outer tube portion (2) may be performed by bonding, fitting, or other appropriate means, and the inner tube member (1) itself is somewhat taut. It is desirable to fix it so that it does not slip. The inner pipe vibrates well when the inner pipe has some slack as described above. Actually, an inner pipe member (1) made of synthetic fiber and having a height of 70 cm made of synthetic fiber is fixed to an end of a vertical suction pipe near the hopper, and φ10 air is supplied to a lower portion of the outer pipe section (2). Four tubes are arranged symmetrically, and 50 cm above the air supply port,
The following results were obtained by using a device in which six φ10 air discharge pipes were symmetrically arranged.
【００１５】すなわち、粉粒体として小麦粉をホッパー
に投入し、ターボブロワーにより負圧６００Ａｑ〜４０
０Ａｑまで５０Ａｑおきに変化させて吸引すると同時
に、２ｋｇ／ｃｍ2 の圧縮空気を２重管構造の空気隙間
（３）内に吹き込み、各ターボブロワーの負圧に対し
て、約２４時間連続運転を行った。空気の脈動により内
管は約８ヘルツで振動を行い、４００〜６００Ａｑのい
ずれの場合でも、小麦粉の付着現象または管閉塞現象は
確認されなかった。[0015] That is, wheat flour is charged into a hopper as a granular material, and a negative pressure of 600 Aq to 40 A is applied by a turbo blower.
At the same time, suction is performed while changing the pressure to 0 Aq at intervals of 50 Aq, and at the same time, compressed air of 2 kg / cm 2 is blown into the air gap (3) of the double pipe structure, and continuous operation is performed for about 24 hours against the negative pressure of each turbo blower. went. Due to the pulsation of the air, the inner tube oscillated at about 8 Hz, and in any case of 400 to 600 Aq, no adhesion phenomenon of the flour or no tube blocking phenomenon was confirmed.
【００１６】一方、この発明の粉粒体閉塞防止装置を設
置しない場合についても、同じ条件で実験を行ったとこ
ろ、ターボブロワーの負圧が４５０Ａｑのときに、小麦
粉がホッパー付近の垂直吸引管の端に付着しはじめ、１
８時間運転後には閉塞が起こった。また、４００Ａｑの
場合にも、同様に小麦粉がホッパー付近の垂直吸引管の
端に付着しはじめ、８時間運転後には閉塞が起こった。On the other hand, when the apparatus for preventing blockage of the granular material of the present invention was not installed, an experiment was conducted under the same conditions. When the negative pressure of the turbo blower was 450 Aq, the flour was supplied to the vertical suction pipe near the hopper. Begins to adhere to the edges, 1
Clogging occurred after 8 hours of operation. Also, in the case of 400 Aq, similarly, flour began to adhere to the end of the vertical suction pipe near the hopper, and clogging occurred after 8 hours of operation.
【００１７】[0017]
【発明の効果】以上詳しく述べた通り、この発明によ
り、閉塞しかかった輸送管に関しても、その閉塞を回復
するだけの能力を持ちあわせ、特に、粉径の非常に小さ
い粉体に関しても、閉塞を回避することが可能となる。As described above in detail, according to the present invention, even a transport pipe which is about to be clogged, it has the ability to recover the blockage. Can be avoided.
【図１】この発明の装置を例示した縦断面図である。FIG. 1 is a longitudinal sectional view illustrating a device of the present invention.
【図２】図１のＡ0 −Ａ0 部断面図である。FIG. 2 is a sectional view taken along the line A 0 -A 0 of FIG. 1;
【図３】別の例としての図１のＡ0 −Ａ0 部断面図であ
る。FIG. 3 is a sectional view taken along the line A 0 -A 0 of FIG. 1 as another example.
【図４】工場内の配管例を示した概略図である。FIG. 4 is a schematic diagram showing an example of piping in a factory.
Ａ ホッパー Ｂ 粉粒体 Ｃ 管路 １ 内管部材 ２ 外管部 ３ 空気隙間 ４ 空気供給口 ５ 空気排出口 ６ 輸送管内部 ５０ 輸送管 ５１ 輸送管 ５２ 輸送管 ５３ サイクロン ５４ サイクロン ５５ サイクロン ５６ 集合管 ５７ ターボブロワー ５８ 風量計 ５９ 風量一定装置 ６１ バグフィルター ６２ ホッパー ６３ ホッパー ６４ ホッパー Reference Signs List A Hopper B Granule C Pipeline 1 Inner pipe member 2 Outer pipe part 3 Air gap 4 Air supply port 5 Air discharge port 6 Inside transport pipe 50 Transport pipe 51 Transport pipe 52 Transport pipe 53 Cyclone 54 Cyclone 55 Cyclone 56 Collecting pipe 57 Turbo blower 58 Air flow meter 59 Air flow constant device 61 Bag filter 62 Hopper 63 Hopper 64 Hopper
Claims (3)
て、柔軟で可変形な中空内管部材を配設した粉粒体閉塞
防止装置であって、内管部材の中空部で粉粒体を管路輸
送するに際し、前記外管部の内周表面と前記内管部材と
の間に設けた空気隙間に圧縮空気を流通させて内管部材
を変形振動させ、この振動によって粉粒体の管路内での
閉塞を防止することを特徴とする粉粒体閉塞防止装置。An apparatus for preventing clogging of a granular material, comprising a flexible and deformable hollow inner tube member disposed on an inner peripheral surface of a rigid outer tube portion via an air gap, wherein the hollow portion of the inner tube member is provided. When the granular material is transported in a pipeline, compressed air is circulated through an air gap provided between the inner peripheral surface of the outer pipe portion and the inner pipe member to deform and vibrate the inner pipe member. An apparatus for preventing blockage of a granular material, wherein the granular material is prevented from being blocked in a pipeline.
のフィルムあるいはシートである請求項１の粉粒体閉塞
防止装置。2. The apparatus according to claim 1, wherein the inner tube member is a cloth or a resin or rubber film or sheet.
に設置された請求項１の粉粒体閉塞防止装置。3. The apparatus according to claim 1, which is installed in a transport pipe or bend near the hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33879896A JPH10175736A (en) | 1996-12-18 | 1996-12-18 | Powder and grain clogging preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33879896A JPH10175736A (en) | 1996-12-18 | 1996-12-18 | Powder and grain clogging preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10175736A true JPH10175736A (en) | 1998-06-30 |
Family
ID=18321578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33879896A Pending JPH10175736A (en) | 1996-12-18 | 1996-12-18 | Powder and grain clogging preventing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10175736A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107444912A (en) * | 2017-09-04 | 2017-12-08 | 苏州托克斯冲压设备有限公司 | A kind of material-absorbing type hoisting mechanism |
| CN107472913A (en) * | 2017-09-04 | 2017-12-15 | 苏州托克斯冲压设备有限公司 | A kind of feeding device of material-absorbing type hoisting mechanism |
| CN108861608A (en) * | 2018-06-29 | 2018-11-23 | 安徽省碧绿春生物科技有限公司 | A kind of chatter blanking type rotary valve |
| CN109319506A (en) * | 2018-10-29 | 2019-02-12 | 安徽捷运矿山机械有限公司 | A kind of quick suction device of mineral powder |
| CN111115273A (en) * | 2019-12-26 | 2020-05-08 | 徐东 | Vacuum feeding machine suction gun mechanism for conveying powder |
-
1996
- 1996-12-18 JP JP33879896A patent/JPH10175736A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107444912A (en) * | 2017-09-04 | 2017-12-08 | 苏州托克斯冲压设备有限公司 | A kind of material-absorbing type hoisting mechanism |
| CN107472913A (en) * | 2017-09-04 | 2017-12-15 | 苏州托克斯冲压设备有限公司 | A kind of feeding device of material-absorbing type hoisting mechanism |
| CN108861608A (en) * | 2018-06-29 | 2018-11-23 | 安徽省碧绿春生物科技有限公司 | A kind of chatter blanking type rotary valve |
| CN109319506A (en) * | 2018-10-29 | 2019-02-12 | 安徽捷运矿山机械有限公司 | A kind of quick suction device of mineral powder |
| CN109319506B (en) * | 2018-10-29 | 2020-06-16 | 马鞍山市新桥工业设计有限公司 | Quick material suction device of ore powder |
| CN111115273A (en) * | 2019-12-26 | 2020-05-08 | 徐东 | Vacuum feeding machine suction gun mechanism for conveying powder |
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