JPS58212526A - Pneumatic transportation apparatus - Google Patents
Pneumatic transportation apparatusInfo
- Publication number
- JPS58212526A JPS58212526A JP9447382A JP9447382A JPS58212526A JP S58212526 A JPS58212526 A JP S58212526A JP 9447382 A JP9447382 A JP 9447382A JP 9447382 A JP9447382 A JP 9447382A JP S58212526 A JPS58212526 A JP S58212526A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- pressure
- air
- conveying pipe
- transport pipe
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
- B65G53/521—Adaptations of pipes or tubes means for preventing the accumulation or for removal of deposits
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は粉粒体を圧縮空気によって移送する空気輸送管
装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air transport pipe device for transporting powder and granular materials using compressed air.
一般に鋳物砂のような粉粒体を空気輸送するようにした
装置においては、輸送管が粉粒体で閉塞される事故が多
発しており、従来輸送管が閉塞した時は、その閉塞場所
を外側からハンマーでたたき輸送管に衝激を与えて粉粒
体を崩すようにしているがそれでも閉塞が解除されない
時にはその輸送管を取り外し粉粒体を棒材等で崩して取
り除くようにしている。In general, in devices designed to pneumatically transport powder and granular materials such as foundry sand, there are many accidents in which the transport pipe is blocked by the powder. The transport pipe is struck with a hammer from the outside to give an impact to break up the powder and granules, but if the blockage still remains, the transport pipe is removed and the powder is broken up with a bar or the like and removed.
したがって輸送管の閉塞の解除は全面的に人手に頼らな
ければならずしかも輸送管が高所に設置されていること
も加わって非常に危険であると共に時間がかかるなどの
問題があり、業界から閉塞が発生しない空気輸送管装置
の開発が強く要請されていた。 一
本発明は上記の事情に鑑みなされたもので、粉粒体の滞
留を直ちに解除するようにした空気輸送管装置を提供す
ることを目的とする。Therefore, unblocking the transport pipes must rely entirely on manual labor, which is extremely dangerous and time-consuming due to the fact that the transport pipes are installed at high places. There was a strong demand for the development of an air transport pipe device that would not cause blockages. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an air transport pipe device that immediately releases the accumulation of powder particles.
以下本発明の実施例について図面に基づき詳細に説明す
る。図中（１）は一端を図示されない圧力タンクに連通
接続された輸送管であって、該輸送管（１）に沿って２
次エヤー管（２）が並列に配設されている。（３Ａ）
（３Ｂ） （３Ｃ）はそれぞれ連通管であって前記輸送
管（１）と２次エヤー管（２）との間を適当なピッチで
連通している。Embodiments of the present invention will be described in detail below with reference to the drawings. In the figure, (1) is a transport pipe whose one end is connected to a pressure tank (not shown), and along the transport pipe (1), two
Secondary air pipes (2) are arranged in parallel. (3A)
(3B) and (3C) are communicating pipes that communicate between the transport pipe (1) and the secondary air pipe (2) at an appropriate pitch.
（４Ａ） （４Ｂ） （４Ｃ）はそれぞれ差圧バルブで
あり、該差圧バルブ（４Ａ） （４Ｂ） （４Ｃ）°は
前記連通管（３Ａ） （３Ｂ） （３Ｃ）に対応してそ
れぞれ備えられている。(4A), (4B), and (4C) are differential pressure valves, and the differential pressure valves (4A), (4B, and 4C) are provided corresponding to the communication pipes (3A), (3B, and 3C), respectively. It is being
該差圧バルブ（４Ａ） （４Ｂ） （４Ｃ）は第２図に
示すように弁箱（５）内にダイヤフラム弁（６）を備え
、該ダイヤフラム弁（６）によりインプット（７）側と
アウトプット側とを弁座（９）において区画している。The differential pressure valves (4A) (4B) (4C) are equipped with a diaphragm valve (6) inside the valve box (5) as shown in Fig. 2, and the diaphragm valve (6) connects the input (7) side and the output side. The valve seat (9) separates the valve seat from the front side.
（１ωは前記弁箱（５）内にダイヤフラム弁（６）によ
り仕切られて形成されたダイヤフラム室で、該ダイヤフ
ラム室（１０）にはパイロット圧導入用の取入孔（１１
）が穿設しである。（１２）はダイヤフラム室（ｌＯ）
内において、前記ダイヤフラム弁（６）に押圧力を付与
する圧力可変スプリングであり、圧力可変スプリング（
１２）はバネ受（１３）を介して圧力調整ネジ（１４う
によりダイヤフラム弁（６）に対する押圧力を可変する
ことができるようにしである。(1ω is a diaphragm chamber partitioned off by a diaphragm valve (6) in the valve box (5), and the diaphragm chamber (10) has an intake hole (11) for pilot pressure introduction.
) is perforated. (12) is the diaphragm chamber (lO)
There is a variable pressure spring that applies a pressing force to the diaphragm valve (6), and the variable pressure spring (
12) is configured so that the pressing force against the diaphragm valve (6) can be varied by a pressure adjusting screw (14) via a spring receiver (13).
前記差圧バルブ（４Ａ） （４Ｂ） （４Ｃ）のインプ
ット（７）側は前記２次エヤー管（２）に連通し、また
アウトプット（８）側は前記輸送管（１）に連通しであ
る。The input (7) side of the differential pressure valve (4A) (4B) (4C) communicates with the secondary air pipe (2), and the output (8) side communicates with the transport pipe (1). be.
さらに前記取入孔（１１）にはパイロット管（１５Ａ）
（１５Ｂ） （１５Ｃ）の一端が接続されており、該パ
イロット管Ｃ１５Ａ！”ｊ （１５Ｂ） （１５Ｃ）の
他端は１個下流側に位置する連通管（３Ｂ）、（３Ｃ）
・・・の輸送管（１）側位置に連通されている。したが
ってダイヤフラム室（１０）はパイロット管（１５Ａ）
（１５Ｂ） （１５Ｃ）を介して輸送管（１）の下流
位置に連通されている。Furthermore, a pilot pipe (15A) is installed in the intake hole (11).
(15B) One end of (15C) is connected, and the pilot pipe C15A! "j (15B) The other end of (15C) is one communicating pipe located downstream (3B), (3C)
... is communicated with the transport pipe (1) side position. Therefore, the diaphragm chamber (10) is connected to the pilot pipe (15A).
(15B) is communicated with the downstream position of the transport pipe (1) via (15C).
次に本発明に係る空気輸送管装置の作動について説明す
る。輸送管（１）には粉粒体（Ｍ、）が圧縮空気により
矢印方向に空気輸送されている。また２次エヤー管（２
）には輸送管（１）内の圧力よりも高い圧力の高圧空気
が満たされている。その結果、差圧バルブ（４Ａ） （
４Ｂ） （４Ｃ）のインプット（７）側には２次エヤー
管（２）からの圧力が伝わっていて通常は弁座（９）に
よりアウトプット（８）側への流出を阻止されている。Next, the operation of the air transport pipe device according to the present invention will be explained. Powder (M,) is pneumatically transported in the direction of the arrow by compressed air into the transport pipe (1). Also, the secondary air pipe (2
) is filled with high-pressure air at a pressure higher than the pressure inside the transport pipe (1). As a result, the differential pressure valve (4A) (
4B) The pressure from the secondary air pipe (2) is transmitted to the input (7) side of (4C), and is normally prevented from flowing to the output (8) side by the valve seat (9).
また連通管（３Ｂ） （３０３・・・部分の輸送管（１
）側圧力はパイロット管（１５Ａ５ （１５Ｂ）（１５
Ｃ）を介して差圧バルブ（４Ａ） （４Ｂ） （４Ｃ）
のダイヤフラム室（１０）に伝わ、でいる。さらに差圧
バルブ（４Ａ） （４Ｂ） （４Ｃ）のアウトプット（
８）側には輸送管（１〕内の圧力が伝わっている。この
状態で差圧バルブ（４Ａ） （４Ｂ） （４Ｃ）のイン
プット（７）側の圧力をＰｌ、アウトプット（８）側の
圧力をＰ３、ダイヤフラム室（１０）内のパイロット圧
をＰｌ、スプリング力をＰ４とし、インプット（７）側
の圧力が弁座（９）に及ぼす面積Ｓ＋、ダイヤフラム弁
（６）の面積を８２とすると、弁座（９）が開く条件は
５ＩＸＰｌ＋（Ｓ２−５ｌ）ＸＰ３ ＞５２ＸＰ２＋Ｐ
４Ｓ２（Ｐ３−Ｐｌ ） ＝ＳＩ Ｘ Ｐ３ ） Ｐ４
− ＳＰ＋となる。In addition, the communication pipe (3B) (303... portion of the transport pipe (1)
) side pressure is the pilot pipe (15A5 (15B) (15
C) through differential pressure valve (4A) (4B) (4C)
The signal is transmitted to the diaphragm chamber (10) and exits. Furthermore, the output of the differential pressure valve (4A) (4B) (4C) (
The pressure inside the transport pipe (1) is transmitted to the 8) side.In this state, the pressure on the input (7) side of the differential pressure valves (4A) (4B) (4C) is Pl, and the pressure on the output (8) side is The pressure in the diaphragm chamber (10) is P3, the pilot pressure in the diaphragm chamber (10) is Pl, the spring force is P4, the area that the pressure on the input (7) side exerts on the valve seat (9) is S+, and the area of the diaphragm valve (6) is 82. Then, the condition for valve seat (9) to open is 5IXPl+(S2-5l)XP3 >52XP2+P
4S2(P3-Pl) = SI X P3) P4
- It becomes SP+.
ＰＩＳＰ４、はコンスタントであるのｐ Ｐｌ Ｐ３の
値により決定されろ。PISP4, is determined by the value of p Pl P3, which is constant.
またＳ＋はＳ２に比べて非常に小さい値であるのでほぼ
Ｓ２ （Ｐ３−Ｐｌ） ＞Ｐ４の関係が成り立つ。よっ
て弁座（９）が開く条件は差圧バルブ（４Ａ） （４Ｂ
） （４Ｃ）の取伺ピッチ間の輸送管（１〕内の圧力差
によって決定されることが判る。Furthermore, since S+ is a very small value compared to S2, the relationship approximately S2 (P3-Pl)>P4 holds true. Therefore, the conditions for opening the valve seat (9) are the differential pressure valves (4A) (4B
) It can be seen that it is determined by the pressure difference in the transport pipe (1) between the picking pitches in (4C).
の移動が一時的に停止すると輸送管（１〕内の圧力は第
１図のグラフ部分に示されているような圧力勾配を示し
、△Ｐ１により発生する力がスプリング力Ｐ４より大き
くなると差圧バルブ（４Ｂ）が開き２次エヤー管（２〕
から高圧空気が連通管（３Ｂ）を通って矢印のように輸
送管（１）内に吐出され、通常状態よりも長いプラグに
なっている粉粒体（Ｍ）を分断して通常の空気輸送状態
に輸送管（１）内を回復させて空気輸送を続ける。この
ような作動は粉粒体（Ｍ）のプラグが通常より長くなっ
てその移動が一時的に停止する都度長いプラグに対応し
た位置において行われることになる。When the movement of is temporarily stopped, the pressure inside the transport pipe (1) shows a pressure gradient as shown in the graph part of Figure 1, and when the force generated by △P1 becomes larger than the spring force P4, the pressure difference increases. The valve (4B) opens and the secondary air pipe (2)
High-pressure air passes through the communication pipe (3B) and is discharged into the transport pipe (1) as shown by the arrow, dividing the powder (M), which has become a longer plug than normal, and transporting it by normal air. The inside of the transport pipe (1) is restored to the normal condition and air transport is continued. Such an operation is performed at a position corresponding to the longer plug each time the plug of the powder (M) becomes longer than usual and its movement temporarily stops.
以上の説明から明らかなように本発明に係る空気輸送管
装置は、粉粒体の滞留位置を自動的に検知して、長くな
った粉粒体のプラグを分断して通常状態に回復させるこ
とができると共に２次エヤーの消費を粉粒体の停止位置
においてだけにすることができるため省エネルギー輸送
がｎＪ能になる等すぐれた効果を発揮するものである。As is clear from the above description, the air transport pipe device according to the present invention is capable of automatically detecting the stagnation position of the powder and granular material, and separating the plug of the powder and granular material that has become long to restore the normal state. In addition, since the secondary air can be consumed only at the position where the powder or granules are stopped, it exhibits excellent effects such as energy-saving transportation of nJ.
第１図は本発明に係る空気輸送管装置の断面図と粉粒体
の滞留時における輸送管内の圧力状態を示す説明図、第
２図は差圧バルブの拡大断面図である。FIG. 1 is a cross-sectional view of an air transport pipe device according to the present invention and an explanatory diagram showing the pressure state inside the transport pipe when powder particles are retained, and FIG. 2 is an enlarged cross-sectional view of a differential pressure valve.
Claims (1)
対し、並列に２次エヤー管を備え、前記輸送管と２次エ
ヤー管との間を多数の連通管を介して適当なピッチで連
通接続し、該各連通管には、パイロット圧として圧力可
変スプリングと前記輸送管内圧を導入すると共にインプ
ットを前記２次エヤー管側にアウトプットを輸送管側に
それぞれ連通させて差圧バルブを備えたことを特徴とす
る空気輸送管装置。A secondary air pipe is provided in parallel with a transport pipe that is connected to a pressure tank and pneumatically transports powder and granules, and a number of communication pipes are connected between the transport pipe and the secondary air pipe at an appropriate pitch. A variable pressure spring and the transport pipe internal pressure are introduced as pilot pressure into each communication pipe, and the input is communicated with the secondary air pipe and the output is communicated with the transport pipe to form a differential pressure valve. An air transport pipe device characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9447382A JPS58212526A (en) | 1982-06-01 | 1982-06-01 | Pneumatic transportation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9447382A JPS58212526A (en) | 1982-06-01 | 1982-06-01 | Pneumatic transportation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58212526A true JPS58212526A (en) | 1983-12-10 |
Family
ID=14111240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9447382A Pending JPS58212526A (en) | 1982-06-01 | 1982-06-01 | Pneumatic transportation apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58212526A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4715748A (en) * | 1984-09-29 | 1987-12-29 | Avt Anlagen- Und Verfahrenstechnik Gmbh | Process and equipment for pneumatic and hydraulic transport of bulk materials through pipes |
| US4861200A (en) * | 1987-05-05 | 1989-08-29 | Waeschle Maschinenfabrik Gmbh | Apparatus for pneumatically conveying bulk material |
| US4909676A (en) * | 1987-05-05 | 1990-03-20 | Waeschle Maschinenfabrik Gmbh | Apparatus for pneumatically conveying bulk material |
| US4955761A (en) * | 1989-01-27 | 1990-09-11 | Alb. Klein Gmbh & Co. Kg | Process for pneumatically conveying material and apparatus for controlling the feed of air therefor |
| US5224802A (en) * | 1991-06-06 | 1993-07-06 | Alb. Klein Gmbh & Co. Kg | Method and apparatus for controlling the infeed of air into the conveyor conduit of a pneumatic conveyor installation |
| US5584612A (en) * | 1994-11-02 | 1996-12-17 | Nol-Tec Systems, Inc. | Apparatus and process for pneumatically conveying material and for controlling the feed of supplemental gas |
| US6106202A (en) * | 1998-05-04 | 2000-08-22 | Nol-Tec Systems, Inc. | Pneumatic conveying air assist line with air bleed |
| CN103057964A (en) * | 2013-01-11 | 2013-04-24 | 韩香莲 | Air conveyor |
| CN104276408A (en) * | 2013-05-03 | 2015-01-14 | 泽普林系统有限责任公司 | Device and method for operating pneumatic conveying equipment |
| CN106494891A (en) * | 2016-12-07 | 2017-03-15 | 河南理工大学 | A kind of mineral grain eddy flow air-transport system |
| CN112249714A (en) * | 2020-10-19 | 2021-01-22 | 江苏恒博气力输送设备制造有限公司 | Low-energy-consumption material flow blowing assisting device |
| US20220219918A1 (en) * | 2019-05-03 | 2022-07-14 | Schenck Process Europe Gmbh | Material conveying apparatus with shut down valves |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4843593U (en) * | 1971-09-25 | 1973-06-06 | ||
| JPS5442785A (en) * | 1977-08-19 | 1979-04-04 | Waeschle Maschf Gmbh | Pneumatic conveyor for bulk article |
| JPS5516873A (en) * | 1978-07-21 | 1980-02-05 | Hitachi Plant Eng & Constr Co Ltd | Granular material transporting system |
-
1982
- 1982-06-01 JP JP9447382A patent/JPS58212526A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4843593U (en) * | 1971-09-25 | 1973-06-06 | ||
| JPS5442785A (en) * | 1977-08-19 | 1979-04-04 | Waeschle Maschf Gmbh | Pneumatic conveyor for bulk article |
| JPS5516873A (en) * | 1978-07-21 | 1980-02-05 | Hitachi Plant Eng & Constr Co Ltd | Granular material transporting system |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4715748A (en) * | 1984-09-29 | 1987-12-29 | Avt Anlagen- Und Verfahrenstechnik Gmbh | Process and equipment for pneumatic and hydraulic transport of bulk materials through pipes |
| US4861200A (en) * | 1987-05-05 | 1989-08-29 | Waeschle Maschinenfabrik Gmbh | Apparatus for pneumatically conveying bulk material |
| US4909676A (en) * | 1987-05-05 | 1990-03-20 | Waeschle Maschinenfabrik Gmbh | Apparatus for pneumatically conveying bulk material |
| US4955761A (en) * | 1989-01-27 | 1990-09-11 | Alb. Klein Gmbh & Co. Kg | Process for pneumatically conveying material and apparatus for controlling the feed of air therefor |
| US5224802A (en) * | 1991-06-06 | 1993-07-06 | Alb. Klein Gmbh & Co. Kg | Method and apparatus for controlling the infeed of air into the conveyor conduit of a pneumatic conveyor installation |
| US5584612A (en) * | 1994-11-02 | 1996-12-17 | Nol-Tec Systems, Inc. | Apparatus and process for pneumatically conveying material and for controlling the feed of supplemental gas |
| US6106202A (en) * | 1998-05-04 | 2000-08-22 | Nol-Tec Systems, Inc. | Pneumatic conveying air assist line with air bleed |
| CN103057964A (en) * | 2013-01-11 | 2013-04-24 | 韩香莲 | Air conveyor |
| CN104276408A (en) * | 2013-05-03 | 2015-01-14 | 泽普林系统有限责任公司 | Device and method for operating pneumatic conveying equipment |
| CN106494891A (en) * | 2016-12-07 | 2017-03-15 | 河南理工大学 | A kind of mineral grain eddy flow air-transport system |
| US20220219918A1 (en) * | 2019-05-03 | 2022-07-14 | Schenck Process Europe Gmbh | Material conveying apparatus with shut down valves |
| US11760583B2 (en) * | 2019-05-03 | 2023-09-19 | Schenck Process Europe Gmbh | Material conveying apparatus with shut down valves |
| CN112249714A (en) * | 2020-10-19 | 2021-01-22 | 江苏恒博气力输送设备制造有限公司 | Low-energy-consumption material flow blowing assisting device |
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