JPH07285609A - Method for removing operation of clogging of refuse vacuum transporting device, and device therefor - Google Patents
Method for removing operation of clogging of refuse vacuum transporting device, and device thereforInfo
- Publication number
- JPH07285609A JPH07285609A JP7842794A JP7842794A JPH07285609A JP H07285609 A JPH07285609 A JP H07285609A JP 7842794 A JP7842794 A JP 7842794A JP 7842794 A JP7842794 A JP 7842794A JP H07285609 A JPH07285609 A JP H07285609A
- Authority
- JP
- Japan
- Prior art keywords
- blower
- pipe
- outside air
- suction pressure
- dust
- 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
- Refuse Collection And Transfer (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建物等のごみ投入口に
投入されたごみを輸送管により空気輸送し、収集センタ
ーに収集するごみ真空輸送装置において、輸送されるご
みにより輸送管内が閉塞された場合に、この閉塞をブロ
ワの吸引圧力によって解除することのできるごみ真空輸
送装置の閉塞解除運転方法及びその装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust vacuum transportation device for pneumatically transporting dust thrown into a dust throwing port of a building or the like by a transport pipe and collecting the waste in a collection center. The present invention relates to a method and an apparatus for releasing a blockage of a dust vacuum transportation device that can release this blockage by suction pressure of a blower.
【０００２】[0002]
【従来の技術】図８は従来のごみ真空輸送装置の閉塞解
除方法を説明するためのごみ空気輸送プラントの系統図
である。2. Description of the Related Art FIG. 8 is a system diagram of a waste pneumatic transportation plant for explaining a conventional method for releasing the blockage of a vacuum vacuum transportation device.
【０００３】ごみ空気輸送プラントは、建物に設置され
た貯留筒式のごみ貯留排出装置１や回転ドラム式のごみ
貯留排出装置１１より排出されたごみを輸送管６によっ
て空気輸送し、収集センターに収集するようになってい
る。The waste pneumatic transportation plant transports the waste discharged from the storage cylinder type waste storage and discharge device 1 and the rotating drum type waste storage and discharge device 11 installed in the building by the transport pipe 6 to the collection center. It is supposed to be collected.
【０００４】貯留筒式のごみ貯留排出装置１は、建物の
ごみ投入口２に上部が接続され、投入されたごみを一旦
貯留するごみ貯留筒３と、ごみ貯留筒３の下端に設けら
れた排出弁４と、排出弁４と輸送管６側の分岐管６ａと
を接続する輸送支管５とから構成されている。また、分
岐管６ａの排出弁４よりも下流側には遮断弁７が設けら
れるとともに、分岐管６ａの最上流端には吸気弁８が設
置されている。回転ドラム式のごみ貯留排出装置１１
は、建物のごみ投入口２に上部が接続された投入シュー
ト１２と、内面に螺旋羽根を有しかつ一端が投入シュー
ト１２の下端に接続され、図示しない駆動源により回転
させられて、一旦貯留したごみを螺旋羽根の押し出し作
用により他端側に搬送し排出する回転ドラム１３と、回
転ドラム１３から排出されたごみを受け取る排出シュー
ト１４と、排出シュート１４の下端に設けられた排出弁
４と、排出弁４と輸送管６側の分岐管６ｂとを接続する
輸送支管５とから構成されている。また、分岐管６ｂの
排出弁４よりも下流側には遮断弁７が設けられるととも
に、分岐管６ｂの最上流端には吸気弁８が設置されてい
る。A storage cylinder type waste storage and discharge device 1 is provided at the lower end of the waste storage cylinder 3 and the waste storage cylinder 3 whose upper part is connected to the waste input port 2 of the building for temporarily storing the input waste. The discharge valve 4 and the transport branch pipe 5 that connects the discharge valve 4 and the branch pipe 6a on the transport pipe 6 side are configured. A cutoff valve 7 is provided downstream of the discharge valve 4 of the branch pipe 6a, and an intake valve 8 is provided at the most upstream end of the branch pipe 6a. Rotating drum type waste storage and discharge device 11
Is a storage chute 12 whose upper part is connected to the dust input port 2 of the building and a spiral blade on the inner surface and whose one end is connected to the lower end of the chute 12 and which is rotated by a drive source (not shown) and temporarily stored. A rotary drum 13 that conveys and discharges the collected dust to the other end side by the pushing action of the spiral blade, a discharge chute 14 that receives the dust discharged from the rotary drum 13, and a discharge valve 4 that is provided at the lower end of the discharge chute 14. , A transport branch pipe 5 that connects the discharge valve 4 and the branch pipe 6b on the transport pipe 6 side. Further, a cutoff valve 7 is provided downstream of the discharge valve 4 of the branch pipe 6b, and an intake valve 8 is provided at the most upstream end of the branch pipe 6b.
【０００５】収集センターには、ごみと空気とを分離す
るサイクロン集塵機からなる分離機２１と、分離機２１
で分離されたごみを貯留排出するごみ排出装置２２と、
分離機２１で分離されない微細なダストを濾布等を透過
させることにより捕集するバグフィルタ２３と、バグフ
ィルタ２３で捕集したダストをごみ排出装置２２側に搬
送するスクリュコンベヤ等からなる搬送装置２４と、輸
送管６内の空気を分離機２１およびバグフィルタ２３を
経由して吸引することにより輸送管６内に空気流を発生
させるブロワ２５とが設置され、ブロワ２５から排出さ
れる空気は図示しない脱臭装置によってごみのにおいが
除かれてから大気に放出されるようになっている。そし
て、ごみ排出装置２２に貯留されたごみは、例えばコン
テナ輸送方式によってごみ焼却場２６に二次輸送される
ようになっている。In the collection center, a separator 21 consisting of a cyclone dust collector for separating dust and air, and a separator 21
A waste discharge device 22 for storing and discharging the waste separated by
A conveying device including a bag filter 23 that collects fine dust that is not separated by the separator 21 by transmitting it through a filter cloth, and a screw conveyor that conveys the dust collected by the bag filter 23 to the dust discharge device 22 side. 24 and a blower 25 that generates an air flow in the transport pipe 6 by sucking the air in the transport pipe 6 through the separator 21 and the bag filter 23, and the air discharged from the blower 25 is The deodorizing device (not shown) removes the odor of dust and then releases it to the atmosphere. Then, the waste stored in the waste discharging device 22 is secondarily transported to the waste incineration site 26 by, for example, a container transportation system.
【０００６】また、ブロワ２５の吸引側の配管２７上に
は電気式の外気導入弁２８が設けられ、輸送管６内がご
みにより閉塞されてブロワ２５の吸引圧力が上昇する
と、後述の安全装置からの指令により開かれて輸送管６
外より空気を取り入れ、ブロワ２５がサージ域に入らな
いように機能する。つまり、外気導入弁２８は、ブロワ
２５を保護する安全弁として働く。Further, an electric outside air introduction valve 28 is provided on the suction side pipe 27 of the blower 25, and when the inside of the transport pipe 6 is blocked by dust and the suction pressure of the blower 25 rises, a safety device described later is provided. Transport pipe 6 opened by a command from
It takes in air from the outside and functions so that the blower 25 does not enter the surge area. That is, the outside air introduction valve 28 functions as a safety valve that protects the blower 25.
【０００７】安全装置は、配管２７上の外気導入弁２８
よりも下流側に導圧管２９を介して設けられた圧力計３
１と、圧力計３１の検出した吸引圧力の値と事前に設定
した設定値とを比較してその結果を出力する比較器３２
と、比較器３２の比較結果、配管２７内の吸引圧力が設
定値を超え、かつその状態が所定時間持続した場合に、
輸送管６内がごみにより閉塞されたと判定し、外気導入
弁駆動部３３とドライバ３４及びアラーム３５に対し輸
送管６内が閉塞されたことを知らせる閉塞判定手段３６
とから構成されている。外気導入弁駆動部３３は、閉塞
判定手段３６から輸送管６内が閉塞されたことが知らせ
られると、外気導入弁２８を全開にして輸送管６外より
空気を導入させる。また、ドライバ３４は、閉塞判定手
段３５から輸送管６内が閉塞されたことが知らせられる
と、ブロワ２５を停止させる。また、アラーム３５は、
閉塞判定手段３５から輸送管６内が閉塞されたことが知
らせられると、警報を発し、オペレータに輸送管６内が
閉塞されたことを知らせる。The safety device is an outside air introduction valve 28 on the pipe 27.
Pressure gauge 3 provided downstream from the pressure guide tube 29
1 and a comparator 32 that compares the suction pressure value detected by the pressure gauge 31 with a preset value and outputs the result.
When the suction pressure in the pipe 27 exceeds the set value and the state lasts for a predetermined time, as a result of comparison by the comparator 32,
Blockage determination means 36 that determines that the inside of the transport pipe 6 is blocked by dust and notifies the outside air introduction valve drive unit 33, the driver 34, and the alarm 35 that the inside of the transport pipe 6 is blocked.
It consists of and. When the outside air introduction valve drive unit 33 is notified by the closing determination unit 36 that the inside of the transportation pipe 6 is closed, the outside air introduction valve 28 is fully opened to introduce air from outside the transportation pipe 6. Further, when the driver 34 is notified by the blockage determination means 35 that the inside of the transport pipe 6 is blocked, the driver 34 stops the blower 25. Also, the alarm 35
When the blockage determining means 35 notifies that the inside of the transport pipe 6 is blocked, an alarm is issued to notify the operator that the inside of the transport pipe 6 is blocked.
【０００８】このようなものにおいて、ブロワ２５で輸
送管６内の空気を吸引し、その空気流内にごみを貯留排
出装置１又は１１より排出すると、空気流に乗ってごみ
が搬送され、収集センターに運ばれてくる。収集センタ
ーに運ばれてきたごみは、分離機２１により空気と分離
されて排出装置２２に貯留された後、排出される。In such a device, when the blower 25 sucks the air in the transport pipe 6 and discharges the dust into the air flow from the storage and discharge device 1 or 11, the dust is carried by the air flow and collected. It is brought to the center. The waste carried to the collection center is separated from the air by the separator 21 and stored in the discharge device 22, and then discharged.
【０００９】ところで、貯留排出装置１または１１より
分岐管６ａ又は６ｂ内にごみが排出されると、ごみ輸送
圧力損失が発生し、ブロワ２５の吸引圧力が上昇する。
この時、重量物や流れにくい厨芥等が大量に排出される
と、ブロワ２５の吸引圧力が急上昇する。ブロワ２５の
吸引圧力が上昇し過ぎると、ブロワ２５はサージ域に入
り故障の原因となる。このようなブロワ２５の吸引圧力
の変動を図９に示す。図９は縦軸にブロワ２５の吸引圧
力を、横軸に風量をとったもので、ブロワ２５の性能曲
線をＡ、サージ域をＢ（吸引圧力が−５５００mmＨ2 Ｏ
以上）、大気導入圧力すなわち外気導入弁２８の作動開
始点となる圧力をＣ（−５０００mmＨ2Ｏ）、ごみ輸送
設定風量をＤ（３００m 3 ／min ）で示してある。By the way, when dust is discharged from the storage and discharge device 1 or 11 into the branch pipe 6a or 6b, a dust transport pressure loss occurs and the suction pressure of the blower 25 rises.
At this time, if a large amount of heavy objects, kitchen waste, etc. that are difficult to flow are discharged, the suction pressure of the blower 25 will rapidly increase. If the suction pressure of the blower 25 rises too much, the blower 25 enters the surge area and causes a failure. Such fluctuations in the suction pressure of the blower 25 are shown in FIG. FIG. 9 shows the suction pressure of the blower 25 on the vertical axis and the air volume on the horizontal axis. The performance curve of the blower 25 is A, and the surge area is B (suction pressure is -5500 mmH 2 O).
Above), the air introduction pressure, that is, the pressure at which the operation of the outside air introduction valve 28 starts is shown as C (-5000 mmH 2 O), and the refuse transportation set air volume is shown as D (300 m 3 / min).
【００１０】図１０は運転を開始してから運転中に輸送
管６内の閉塞が発生し、安全装置が働いてブロワ２５が
停止までの従来装置の動作を示す説明図で、縦軸にブロ
ワ２５の吸引圧力（mmＨ2 Ｏ）を、横軸に時間（min ）
をとったものである。図中、Ｃは大気導入圧力すなわち
外気導入弁２８の作動開始点となる圧力（−５０００mm
Ｈ2 Ｏ）、Ｅは設計最高運転圧力、Ｆは閉塞発生点（こ
のときの圧力が圧力計３１の検出値と比較される設定値
である）、Ｇは外気導入弁２８の作動開始点、Ｈはブロ
ワ２５の停止点を示している。同図および図８から明ら
かなように、従来は、閉塞が発生し（Ｆ点）、ブロワ２
５の吸引圧力が外気導入弁２８の作動開始圧力Ｃ（−５
０００mmＨ2 Ｏ）となれば安全装置が働いて直ちに外気
導入弁２８を全開にし（Ｇ点）、輸送管６外より空気を
導入させてブロワ２５の負荷を軽減するとともに、ブロ
ワ２５を停止させ（Ｈ点）、これによりブロワ２５を保
護するようにしている。そして、閉塞の解除は、ブロワ
２５の停止後、輸送管６に設けた点検口より作業員が入
り、閉塞の原因となったごみを取り除くことにより行わ
れる。FIG. 10 is an explanatory view showing the operation of the conventional device from the start of operation until the blower 25 is stopped due to blockage in the transportation pipe 6 during operation, the safety device is activated and the blower 25 is stopped. 25 suction pressure (mmH 2 O) is plotted on the horizontal axis as time (min)
Is taken. In the figure, C is the atmospheric introduction pressure, that is, the pressure at which the outside air introduction valve 28 starts operating (-5000 mm).
H 2 O), E is the design maximum operating pressure, F is the blockage occurrence point (the pressure at this time is a set value that is compared with the detection value of the pressure gauge 31), G is the operation start point of the outside air introduction valve 28, H indicates the stop point of the blower 25. As is clear from the figure and FIG. 8, in the past, blockage occurred (point F), and the blower 2
The suction pressure of 5 is the operation start pressure C (−5 of the outside air introduction valve 28).
000 mmH 2 O), the safety device operates to immediately fully open the outside air introduction valve 28 (point G) to introduce air from outside the transport pipe 6 to reduce the load on the blower 25 and stop the blower 25 ( (Point H), so that the blower 25 is protected. Then, the blockage is released by stopping the blower 25 and then removing the dust causing the blockage by the worker entering through the inspection port provided in the transport pipe 6.
【００１１】[0011]
【発明が解決しようとする課題】上述したように、従来
は閉塞が発生すると直ちに外気導入弁２８を全開にして
輸送管６外よりブロワ２５側に空気を導入するととも
に、ブロワ２５を停止させるようにしているため、輸送
管６内の吸引圧力が低下し（図１０のＧ〜Ｈ）、輸送空
気が流れなくなり、輸送管６内に排出されたごみが残っ
たままとなる。このため、作業員が輸送管６内に入り、
閉塞の原因となったごみを取り除かなくてはならない。
この作業員によるごみの閉塞解除作業には、閉塞場所に
もよるが通常２時間から６時間もの作業時間を要してお
り、この間は作業員の安全を確保するためにごみの収集
運転を停止しなければならず、運転効率を上げることが
できなかった。As described above, conventionally, when blockage occurs, the outside air introduction valve 28 is fully opened immediately to introduce air from the outside of the transport pipe 6 to the blower 25 side, and the blower 25 is stopped. Therefore, the suction pressure in the transport pipe 6 decreases (GH in FIG. 10), the transport air stops flowing, and the dust discharged in the transport pipe 6 remains. Therefore, the worker enters the transportation pipe 6,
The debris that caused the blockage must be removed.
It takes 2 to 6 hours for this worker to release the blockage of the dust, depending on the blockage location. During this period, the garbage collection operation is stopped to ensure the safety of the worker. I had to do so, and I couldn't improve the driving efficiency.
【００１２】本発明は、以上の点に鑑み、安全弁である
外気導入弁が作動してもごみ輸送管内の吸引圧力を確保
することができるとともに、その吸引圧力にて閉塞を解
除することのできるごみ真空輸送装置の閉塞解除運転方
法及びその装置を提供することを目的とする。In view of the above points, the present invention can secure the suction pressure in the refuse transport pipe even when the outside air introduction valve, which is a safety valve, operates, and can release the blockage by the suction pressure. It is an object of the present invention to provide a method for operating to close a dust vacuum transportation device and a device therefor.
【００１３】[0013]
【課題を解決するための手段】本発明のごみ真空輸送装
置の閉塞解除運転方法は、ごみ輸送管を介して外気を吸
引することによりごみを輸送するための空気流を発生さ
せるブロワの吸引圧力を検出する工程と、上記ブロワの
吸引圧力の値と予め設定された設定値との差から輸送管
内の閉塞を検出する工程と、輸送管内の閉塞が検出され
ると、予め設定された上限値にブロワの吸引圧力が保持
されるように、ブロワの吸引側配管に設けた外気導入弁
の開度を調整して、輸送管内を吸引しつつ輸送管外より
ブロワの吸引側に空気を取り入れる工程とを有すること
を特徴としている。SUMMARY OF THE INVENTION A blockage release operating method for a vacuum refuse transportation device according to the present invention is a suction pressure of a blower for generating an air flow for transporting dust by sucking outside air through a dust transportation pipe. Detecting the blockage in the transportation pipe from the difference between the suction pressure value of the blower and the preset value, and when the blockage in the transportation pipe is detected, the preset upper limit value So that the suction pressure of the blower is maintained, the opening of the outside air introduction valve provided in the suction side pipe of the blower is adjusted, and air is drawn into the suction side of the blower from outside the transport pipe while sucking inside the transport pipe. It is characterized by having and.
【００１４】また、本発明のごみ真空輸送装置の閉塞解
除運転方法は、ごみ輸送管を介して外気を吸引すること
によりごみを輸送するための空気流を発生させるブロワ
の吸引圧力を検出する工程と、上記ブロワの吸引圧力の
値と予め設定された設定値との差から輸送管内の閉塞を
検出する工程と、輸送管内の閉塞が検出されると、予め
設定された上限値と下限値の間でブロワの吸引圧力が変
動を繰り返すように、ブロワの吸引側配管に設けた外気
導入弁の開度を調整して、輸送管内を吸引しつつ輸送管
外よりブロワの吸引側に空気を取り入れる工程とを有す
ることを特徴としている。Further, the blockage release operation method of the waste vacuum transportation device of the present invention is a step of detecting the suction pressure of the blower for generating the air flow for transporting the waste by sucking the outside air through the waste transportation pipe. A step of detecting blockage in the transport pipe from the difference between the suction pressure value of the blower and a preset value, and when blockage in the transport pipe is detected, the preset upper and lower limit values Adjust the opening of the outside air introduction valve provided on the suction side piping of the blower so that the suction pressure of the blower repeatedly fluctuates, and take in air from outside the transportation pipe to the suction side of the blower while sucking inside the transportation pipe. And a process.
【００１５】また、本発明のごみ真空輸送装置の閉塞解
除運転方法は、ごみ輸送管を介して外気を吸引すること
によりごみを輸送するための空気流を発生させるブロワ
の吸引圧力を検出する工程と、上記ブロワの吸引圧力の
値と予め設定された設定値との差から輸送管内の閉塞を
検出する工程と、輸送管内の閉塞が検出されると、予め
設定された上限値にブロワの吸引圧力が保持されるよう
に、ブロワの吸引側配管に設けた外気導入弁の開度を所
定時間調整する処理と、予め設定された上限値と下限値
の間でブロワの吸引圧力が変動を繰り返すように、外気
導入弁の開度を所定時間調整する処理とを有し、輸送管
内を吸引しつつ輸送管外よりブロワの吸引側に空気を取
り入れる工程とを有することを特徴としている。Further, in the method for operating the blockage removal operation of the waste vacuum transportation device according to the present invention, the step of detecting the suction pressure of the blower for generating the air flow for transporting the waste by sucking the outside air through the waste transportation pipe. And a step of detecting blockage in the transport pipe from the difference between the suction pressure value of the blower and a preset setting value, and when blockage in the transport pipe is detected, suction of the blower to a preset upper limit value A process of adjusting the opening degree of the outside air introduction valve provided in the suction side pipe of the blower for a predetermined time so that the pressure is maintained, and the suction pressure of the blower repeatedly fluctuates between preset upper and lower limit values. As described above, there is a step of adjusting the opening degree of the outside air introduction valve for a predetermined time, and a step of sucking the inside of the transportation pipe and taking in air from the outside of the transportation pipe to the suction side of the blower.
【００１６】また、本発明のごみ真空輸送装置の閉塞解
除運転装置は、ごみ輸送管を介して外気を吸引すること
によりごみを輸送するための空気流を発生させるブロワ
の吸引側配管に設けられ、ブロワの吸引圧力を検出する
圧力計と、ブロワの吸引側配管に設けられた外気導入弁
と、外気導入弁の開度を調整する弁駆動手段と、圧力計
により検出されたブロワの吸引圧力の値と予め設定され
た設定値との差に基づいて、輸送管内がごみにより閉塞
されているかどうかを判定し、閉塞されていると判定さ
れた場合には閉塞信号を出力する閉塞判定手段と、閉塞
信号が出力されるとそれを入力し、ブロワの吸引圧力が
予め設定された上限値に保持されるように、弁駆動手段
を介して外気導入弁の開度を調整して、輸送管内を吸引
しつつ輸送管外よりブロワの吸引側に空気を取り入れさ
せる制御手段とを備えたものである。Further, the blockage releasing operation device of the vacuum refuse transportation device of the present invention is provided in the suction side pipe of the blower for generating the air flow for transporting the dust by sucking the outside air through the dust transportation pipe. , A pressure gauge for detecting the suction pressure of the blower, an outside air introduction valve provided in the suction side pipe of the blower, a valve drive means for adjusting the opening degree of the outside air introduction valve, and a suction pressure of the blower detected by the pressure gauge Based on the difference between the value of and the preset value, it is determined whether the inside of the transportation pipe is blocked by dust, and if it is determined that the transportation pipe is blocked, a blockage determination unit that outputs a blockage signal. , When the closing signal is output, it is input, and the opening of the outside air introduction valve is adjusted via the valve driving means so that the suction pressure of the blower is maintained at the preset upper limit value. While sucking It is obtained by a control means for creating incorporating air into the suction side of the blower.
【００１７】また、本発明のごみ真空輸送装置の閉塞解
除運転装置は、ごみ輸送管を介して外気を吸引すること
によりごみを輸送するための空気流を発生させるブロワ
の吸引側配管に設けられ、ブロワの吸引圧力を検出する
圧力計と、ブロワの吸引側配管に設けられた外気導入弁
と、外気導入弁の開度を調整する弁駆動手段と、圧力計
により検出されたブロワの吸引圧力の値と予め設定され
た設定値との差に基づいて、輸送管内がごみにより閉塞
されているかどうかを判定し、閉塞されていると判定さ
れた場合には閉塞信号を出力する閉塞判定手段と、閉塞
信号が出力されるとそれを入力し、ブロワの吸引圧力が
予め設定された上限値と下限値の間で変動を繰り返すよ
うに、弁駆動手段を介して外気導入弁の開度を調整し
て、輸送管内を吸引しつつ輸送管外よりブロワの吸引側
に空気を取り入れさせる制御手段とを備えたものであ
る。Further, the blockage release operation device of the vacuum refuse transporting device of the present invention is provided in the suction side pipe of the blower for generating the air flow for transporting the dust by sucking the outside air through the dust transport pipe. , A pressure gauge for detecting the suction pressure of the blower, an outside air introduction valve provided in the suction side pipe of the blower, a valve drive means for adjusting the opening degree of the outside air introduction valve, and a suction pressure of the blower detected by the pressure gauge Based on the difference between the value of and the preset value, it is determined whether the inside of the transportation pipe is blocked by dust, and if it is determined that the transportation pipe is blocked, a blockage determination unit that outputs a blockage signal. , When the blockage signal is output, input it and adjust the opening of the outside air introduction valve via the valve drive means so that the suction pressure of the blower repeats fluctuation between the preset upper and lower limit values. And suck the inside of the transport pipe While the suction side of the blower from the transport tube outside is obtained and control means for causing intake air.
【００１８】また、本発明のごみ真空輸送装置の閉塞解
除運転装置は、ごみ輸送管を介して外気を吸引すること
によりごみを輸送するための空気流を発生させるブロワ
の吸引側配管に設けられ、ブロワの吸引圧力を検出する
圧力計と、ブロワの吸引側配管に設けられた外気導入弁
と、外気導入弁の開度を調整する弁駆動手段と、圧力計
により検出されたブロワの吸引圧力の値と予め設定され
た設定値との差に基づいて、輸送管内がごみにより閉塞
されているかどうかを判定し、閉塞されていると判定さ
れた場合には閉塞信号を出力する閉塞判定手段と、閉塞
信号が出力されるとそれを入力し、ブロワの吸引圧力が
予め設定された上限値に保持されるように、弁駆動手段
を介してブロワの吸引側配管に設けた外気導入弁の開度
を所定時間調整する処理と、予め設定された上限値と下
限値の間でブロワの吸引圧力が変動を繰り返すように、
外気導入弁の開度を所定時間調整する処理とを、連続的
に切換えて行なわせて輸送管内を吸引しつつ輸送管外よ
りブロワの吸引側に空気を取り入れさせる制御手段とを
備えたものである。Further, the blockage release operation device of the vacuum refuse transportation device of the present invention is provided in the suction side pipe of the blower for generating the air flow for transporting the dust by sucking the outside air through the dust transportation pipe. , A pressure gauge for detecting the suction pressure of the blower, an outside air introduction valve provided in the suction side pipe of the blower, a valve drive means for adjusting the opening degree of the outside air introduction valve, and a suction pressure of the blower detected by the pressure gauge Based on the difference between the value of and the preset value, it is determined whether the inside of the transportation pipe is blocked by dust, and if it is determined that the transportation pipe is blocked, a blockage determination unit that outputs a blockage signal. , When the blockage signal is output, it is input to open the outside air introduction valve provided in the suction side pipe of the blower via the valve drive means so that the suction pressure of the blower is maintained at the preset upper limit value. Adjust the degree for a predetermined time And processing, as the suction pressure of the blower is repeated varying between preset upper and lower limits,
A process for adjusting the opening degree of the outside air introduction valve for a predetermined period of time is continuously switched to suck the inside of the transportation pipe and take in air from the outside of the transportation pipe to the suction side of the blower. is there.
【００１９】[0019]
【作用】本発明においては、ごみ輸送管を介して外気を
吸引することによりごみを輸送するための空気流を発生
させるブロワの吸引圧力を圧力計により検出した値と予
め設定した設定値との差から輸送管内の閉塞を検出し、
輸送管内の閉塞が検出されると、予め設定された上限値
にブロワの吸引圧力が保持されるように、ブロワの吸引
側配管に設けた外気導入弁の開度を調整して、輸送管内
を吸引しつつ輸送管外よりブロワの吸引側に空気を取り
入れさせるので、安全弁である外気導入弁が作動しても
ごみ輸送管内の吸引圧力を確保することができ、その吸
引圧力にて閉塞を解除することができる。In the present invention, the suction pressure of the blower for generating the air flow for transporting the dust by sucking the outside air through the dust transport pipe is set between the value detected by the pressure gauge and the preset value. Detect the blockage in the transport pipe from the difference,
When blockage in the transportation pipe is detected, the opening of the outside air introduction valve provided in the suction side pipe of the blower is adjusted so that the suction pressure of the blower is maintained at a preset upper limit value. Since air is taken in from the outside of the transport pipe to the suction side of the blower while sucking, the suction pressure inside the dust transport pipe can be secured even if the outside air introduction valve that is a safety valve operates, and the blockage is released by that suction pressure. can do.
【００２０】また、本発明においては、輸送管内の閉塞
が検出されると、予め設定された上限値と下限値の間で
ブロワの吸引圧力が変動を繰り返すように、ブロワの吸
引側配管に設けた外気導入弁の開度を調整して、輸送管
内を吸引しつつ輸送管外よりブロワの吸引側に空気を取
り入れさせるので、輸送管内を閉塞しているごみが輸送
管内で前後に揺り動かされて隙間が発生し、この隙間に
ごみ輸送のための空気流が発生し、これが突破口となっ
て閉塞を容易に解除することができる。Further, in the present invention, when the blockage in the transportation pipe is detected, the suction side pipe of the blower is provided so that the suction pressure of the blower repeatedly varies between the preset upper and lower limit values. By adjusting the opening of the outside air introduction valve, air is taken in from the outside of the transportation pipe to the suction side of the blower while sucking inside the transportation pipe, so the dust blocking the transportation pipe is shaken back and forth inside the transportation pipe. A gap is generated, and an air flow for transporting dust is generated in this gap, which serves as a breakthrough to easily release the blockage.
【００２１】また、本発明においては、輸送管内の閉塞
が検出されると、予め設定された上限値にブロワの吸引
圧力が保持されるように、ブロワの吸引側配管に設けた
外気導入弁の開度を所定時間調整する処理と、予め設定
された上限値と下限値の間でブロワの吸引圧力が変動を
繰り返すように、外気導入弁の開度を所定時間調整する
処理とを、連続的に切換えて行なわせて、輸送管内を吸
引しつつ輸送管外よりブロワの吸引側に空気を取り入れ
させるので、閉塞の解除をより確実に行なわせることが
できる。Further, in the present invention, when blockage in the transportation pipe is detected, the outside air introduction valve provided in the suction side pipe of the blower is held so that the suction pressure of the blower is maintained at a preset upper limit value. The process of adjusting the opening degree for a predetermined time and the processing of adjusting the opening degree of the outside air introduction valve for a predetermined time so that the suction pressure of the blower repeatedly changes between preset upper and lower limits, Since the air is taken in from the outside of the transportation pipe to the suction side of the blower while suctioning the inside of the transportation pipe, the blockage can be released more reliably.
【００２２】[0022]
実施例１．以下、本発明の第１の実施例に係るごみ真空
輸送装置の閉塞解除運転方法及びこの方法に用いられる
装置を、図１及び図２に基づいて説明する。図１は本実
施例に係るごみ真空輸送装置の閉塞解除運転装置の回路
構成を示すブロック図、図２はその閉塞解除運転方法を
説明するための説明図であり、各図中、従来に相当する
部分には同一符号を付してある。Example 1. Hereinafter, a blockage release operation method for a refuse vacuum transportation apparatus according to a first embodiment of the present invention and an apparatus used for this method will be described with reference to FIGS. 1 and 2. FIG. 1 is a block diagram showing a circuit configuration of a blockage release operation device for a vacuum refuse transportation device according to the present embodiment, and FIG. 2 is an explanatory diagram for explaining the blockage release operation method. The same reference numerals are given to the parts to be marked.
【００２３】本実施例のごみ真空輸送装置の閉塞解除運
転装置は、ブロワ２５の吸引側の配管２７上に設けた電
気式の外気導入弁２８と、配管２７上の外気導入弁２８
よりも下流側に導圧管２９を介して設けられた圧力計３
１と、圧力計３１の検出した吸引圧力の値と事前に設定
した設定値（閉塞発生点Ｆの圧力）とを比較してその結
果を出力する比較器３２と、比較器３２の比較結果、配
管２７内の吸引圧力が設定値を超え、かつその状態が所
定時間持続した場合に、輸送管６内がごみにより閉塞さ
れたと判定し、輸送管６内が閉塞されたことを知らせる
信号を出力する閉塞判定手段３６と、輸送管６内が閉塞
されたことが知らせられるとブロワ２５の吸引圧力の上
限値Ｃ（大気導入圧力すなわち外気導入弁２８の作動開
始点となる圧力＝−５０００mmＨ2 Ｏ）をメモリ４１よ
り読み込み設定する吸引圧力上限値設定手段４２と、ブ
ロワ２５の吸引圧力が吸引圧力上限値設定手段４２によ
り設定した上限値Ｃ（−５０００mmＨ2 Ｏ）に保持され
るように、圧力計３１により検出されるブロワ２５の吸
引圧力をみながら、輸送管６内を吸引しつつ外気導入弁
２８よりブロワ２５の吸引側に外気を取り入れさせるた
めに外気導入弁２８の開度を制御するコントローラ４３
と、コントローラ４３の指示に基づいて外気導入弁２８
を開閉駆動する外気導入弁駆動部３３と、輸送管６内が
閉塞されたことが知らせられると、閉塞発生してからの
経過時間をみて、閉塞状態が所定時間継続すると閉塞解
除不能と判定し、ブロワ２５のドライバ３４とアラーム
３５に対し輸送管６内の閉塞解除が不能であることを知
らせる閉塞継続時間判定部４４とから構成されている。
また、ドライバ３４は、閉塞継続時間判定部４４から輸
送管６内の閉塞解除が不能であることが知らせられる
と、ブロワ２５を停止させる。また、アラーム３５は、
閉塞継続時間判定部４４から輸送管６内の閉塞解除が不
能であることが知らせられると、警報を発し、オペレー
タに輸送管６内の閉塞解除が不能であることを知らせ
る。なお、図２中の符号Ｉは閉塞解除点を示し、この閉
塞解除点Ｉ以降は通常の運転状態に復帰する。それ以外
の構成は上述の従来例と同様である。The blockage release operating device of the vacuum dust transporting device of this embodiment is an electric outside air introduction valve 28 provided on the suction side pipe 27 of the blower 25 and an outside air introduction valve 28 on the pipe 27.
Pressure gauge 3 provided downstream from the pressure guide tube 29
1, the value of the suction pressure detected by the pressure gauge 31 and a preset value (pressure at the blockage occurrence point F) are compared and the result is output, and the comparison result of the comparator 32, When the suction pressure in the pipe 27 exceeds the set value and the state lasts for a predetermined time, it is determined that the inside of the transport pipe 6 is blocked by dust, and a signal is output to notify that the inside of the transport pipe 6 is blocked. When it is notified that the inside of the transportation pipe 6 is blocked, the upper limit value C of the suction pressure of the blower 25 (atmosphere introduction pressure, that is, the pressure at which the outside air introduction valve 28 starts operating = -5000 mmH 2 O) ) Is read from the memory 41 and set, and the suction pressure of the blower 25 is set so that the suction pressure of the blower 25 is held at the upper limit C (−5000 mmH 2 O) set by the suction pressure upper limit setting unit 42. Total 3 A controller for controlling the opening degree of the outside air introduction valve 28 so as to draw the outside air into the suction side of the blower 25 from the outside air introduction valve 28 while sucking the inside of the transport pipe 6 while checking the suction pressure of the blower 25 detected by 1. 43
And the outside air introduction valve 28 based on the instruction from the controller 43.
When it is notified that the inside of the transport pipe 6 is closed and the outside air introduction valve drive unit 33 that opens and closes, the elapsed time after the occurrence of the blockage is determined, and it is determined that the blockage cannot be released when the blockage state continues for a predetermined time. A driver 34 of the blower 25 and an alarm 35 are provided with a blockage continuation time determination unit 44 for notifying that the blockage inside the transport pipe 6 cannot be released.
Further, the driver 34 stops the blower 25 when notified by the blockage duration determination unit 44 that the blockage inside the transportation pipe 6 cannot be released. Also, the alarm 35
When the blockage duration determination unit 44 notifies that the blockage inside the transportation pipe 6 cannot be released, an alarm is issued and the operator is notified that the blockage inside the transport pipe 6 cannot be released. It should be noted that the symbol I in FIG. 2 indicates a blockage release point, and after this blockage release point I, the normal operation state is restored. The other configuration is the same as the above-mentioned conventional example.
【００２４】次に、これを更に詳述しながら本実施例装
置を用いてごみ真空輸送装置の閉塞状態を解除する運転
方法について図１及び図２に基づき説明する。まず、輸
送管６内がごみにより閉塞されると、ブロワ２５の吸引
圧力が上昇する。ブロワ２５の吸引圧力は常時圧力計３
１により検出されて、比較器３２により設定値（閉塞発
生点Ｆの圧力）と比較され、比較結果を閉塞判定手段３
６がみている。従って、ごみによる輸送管６内の閉塞に
よりブロワ２５の吸引圧力が設定値を超え、かつその状
態が所定時間持続すると、この輸送管６内の閉塞を閉塞
判定手段３６により検出することができる。閉塞をその
状態が所定時間持続したか否かによって判定するのは以
下の理由による。即ち、貯留排出装置１または１１より
分岐管６ａ又は６ｂ内にごみが排出されると、ごみ輸送
圧力損失が発生し、ブロワ２５の吸引圧力が上昇する。
このとき、閉塞が発生しなくても瞬間的にブロワ２５の
吸引圧力が設定値（閉塞発生点Ｆの圧力）を超える場合
があることが考えられる。このような場合、直ちに閉塞
解除運転に移行すると、外気導入弁２８の動作頻度が増
大し、その寿命を縮めてしまう結果をもたらす。したが
って、閉塞をその状態が所定時間持続したか否かによっ
て判定するのは外気導入弁２８を保護するためである。Next, referring to FIGS. 1 and 2, an operating method for releasing the closed state of the dust vacuum transporting apparatus using the apparatus of this embodiment will be described in more detail. First, when the inside of the transport pipe 6 is blocked by dust, the suction pressure of the blower 25 increases. The suction pressure of the blower 25 is always 3
1 is detected, and the comparator 32 compares it with a set value (pressure at the blockage occurrence point F), and the comparison result is the blockage determination means 3
6 is watching. Therefore, when the suction pressure of the blower 25 exceeds the set value due to blockage in the transport pipe 6 due to dust and the state continues for a predetermined time, the blockage determination means 36 can detect the blockage in the transport pipe 6. The occlusion is determined by whether or not the state lasts for a predetermined time for the following reason. That is, when the waste is discharged from the storage and discharge device 1 or 11 into the branch pipe 6a or 6b, a waste transport pressure loss occurs and the suction pressure of the blower 25 rises.
At this time, it is conceivable that the suction pressure of the blower 25 may momentarily exceed the set value (pressure at the blockage occurrence point F) even if the blockage does not occur. In such a case, if the blockage release operation is immediately started, the frequency of operation of the outside air introduction valve 28 increases, resulting in shortening its life. Therefore, it is to protect the outside air introduction valve 28 to determine whether or not the state is closed for a predetermined time.
【００２５】吸引圧力上限値設定手段４２は、閉塞判定
手段３６から輸送管６内が閉塞されたことが知らせられ
ると、外気導入弁２８の作動開始点となるブロワ２５の
吸引圧力の上限値Ｃ（−５０００mmＨ2 Ｏ）をメモリ４
１より読み込み、コントローラ４３に設定する。コント
ローラ４３では、設定された上限値Ｃと圧力計３１によ
り検出されるブロワ２５の吸引圧力をみながら、ブロワ
２５の吸引圧力すなわち輸送管６内の吸引圧力が上限値
Ｃに保持されるように、外気導入弁２８の開度を制御
し、外気導入弁駆動部３３に対して外気導入弁２８の開
度量及び開閉方向を指示する。外気導入弁駆動部３３
は、コントローラ４３の指示に従って外気導入弁２８を
開閉駆動し、外気導入弁２８よりブロワ２５の吸引側に
外気を取り入れさせる。When the suction pressure upper limit value setting means 42 is notified by the blockage determination means 36 that the inside of the transport pipe 6 is blocked, the suction pressure upper limit value C of the blower 25 at which the outside air introduction valve 28 starts operating. (-5000mmH 2 O) the memory 4
It is read from 1 and set in the controller 43. The controller 43 keeps the suction pressure of the blower 25, that is, the suction pressure in the transport pipe 6 at the upper limit C while observing the set upper limit C and the suction pressure of the blower 25 detected by the pressure gauge 31. The opening degree of the outside air introduction valve 28 is controlled to instruct the outside air introduction valve drive unit 33 about the opening degree and the opening / closing direction of the outside air introduction valve 28. Outside air introduction valve drive unit 33
Drives the outside air introduction valve 28 to open and close according to the instruction of the controller 43, and causes the outside air to be taken into the suction side of the blower 25 from the outside air introduction valve 28.
【００２６】一方、閉塞継続時間判定部４４は、閉塞判
定手段３６から輸送管６内が閉塞されたことが知らせら
れると、閉塞発生してからの経過時間をみて、閉塞状態
が所定時間継続すると閉塞解除不能と判定し、ブロワ２
５のドライバ３４とアラーム３５に対し輸送管６内の閉
塞解除が不能であることを知らせ、ドライバ３４により
上述の閉塞解除運転の制御に関係なくブロワ２５を停止
させるとともに、アラーム３５によりオペレータに輸送
管６内の内閉塞解除が不能であることを知らせさせる。On the other hand, when the obstruction determination means 36 informs the obstruction determination means 36 that the inside of the transportation pipe 6 is obstructed, the obstruction continuation time determination unit 44 looks at the elapsed time from the occurrence of the obstruction and the obstruction state continues for a predetermined time. It is judged that the blockage cannot be released, and blower 2
The driver 34 and the alarm 35 of No. 5 are notified that the blockage in the transportation pipe 6 cannot be released, the driver 34 stops the blower 25 irrespective of the control of the above-described blockage release operation, and the alarm 35 transports it to the operator. This informs that the internal blockage in the pipe 6 cannot be released.
【００２７】このように、本実施例においては、輸送管
６内の閉塞が発生し、安全弁である外気導入弁２８が作
動してもごみ輸送管６内の吸引圧力を確保することがで
き、その吸引圧力にて閉塞を解除することができる。こ
のため、従来の作業員によるごみの閉塞解除作業に比
し、本実施例の場合は閉塞解除作業時間が１分〜３分で
すみ、閉塞解除作業時間を大幅に短縮できた。また、こ
の閉塞解除作業は基本的に装置の運転状態下において行
われるので、閉塞解除と同時にごみ収集運転を再開する
ことができる。このため、運転効率を上げることができ
る。更に、輸送管６内の閉塞状態が所定時間継続すると
閉塞解除運転の制御に関係なくブロワ２５の運転が停止
させられるので、必要以上に閉塞解除運転が継続される
ことがなく、無駄な電力消費を抑制することができる。As described above, in this embodiment, even if the inside of the transportation pipe 6 is clogged and the outside air introduction valve 28, which is a safety valve, operates, the suction pressure inside the dust transportation pipe 6 can be secured. The blockage can be released by the suction pressure. For this reason, in the case of the present embodiment, the blockage release work time is 1 to 3 minutes, and the blockage release work time can be greatly shortened as compared with the conventional dust blockage release work by the worker. Further, since this blocking release work is basically performed while the apparatus is operating, the dust collection operation can be restarted at the same time when the blocking is released. Therefore, operating efficiency can be improved. Further, if the blockage state in the transportation pipe 6 continues for a predetermined time, the operation of the blower 25 is stopped regardless of the control of the blockage release operation, so that the blockage release operation is not continued more than necessary, resulting in unnecessary power consumption. Can be suppressed.
【００２８】実施例２．図３は本発明の第２の実施例に
係るごみ真空輸送装置の閉塞解除運転装置の回路構成を
示すブロック図、図４はこの実施例の装置を用いてごみ
真空輸送装置の閉塞状態を解除する運転方法を説明する
ための説明図であり、各図中、上述の実施例１に相当す
る部分には同一符号を付してある。Example 2. FIG. 3 is a block diagram showing a circuit configuration of a blockage release operation device for a dust vacuum transportation device according to a second embodiment of the present invention, and FIG. 4 is a block diagram showing the blockage state of the dust vacuum transportation device using the device of this example. FIG. 4 is an explanatory view for explaining the operating method to be performed, and in each drawing, the same reference numerals are given to the portions corresponding to the above-described first embodiment.
【００２９】この実施例のごみ真空輸送装置の閉塞解除
運転装置は、図１の吸引圧力上限値設定手段４２に加え
て、閉塞判定手段３６から輸送管６内が閉塞されたこと
が知らせられると、ブロワ２５の吸引圧力の下限値Ｊ
（外気導入弁２８の閉動作開始点となる圧力＝−３００
０mmＨ2 Ｏ）をメモリ４１より読み込み設定する吸引圧
力下限値設定手段５１を設け、吸引圧力上限値設定手段
４２により設定した上限値Ｃ（−５０００mmＨ2 Ｏ）と
吸引圧力下限値設定手段５１により設定した下限値Ｊ
（−３０００mmＨ2 Ｏ）の間で、ブロワ２５の吸引圧力
すなわち輸送管６内の吸引圧力が変動を繰り返すよう
に、吸引圧力スイング指令手段５２が外気導入弁２８の
開度を制御するようにした点が上述の実施例１のものと
異なっている。In the blockage release operation device of the waste vacuum transportation device of this embodiment, the blockage determination means 36, in addition to the suction pressure upper limit setting means 42 of FIG. 1, notifies that the inside of the transport pipe 6 is blocked. , Lower limit value J of suction pressure of blower 25
(Pressure as starting point of closing operation of the outside air introduction valve 28 = −300
0 mmH 2 O) is read from the memory 41 and the suction pressure lower limit value setting means 51 is provided, and the upper limit value C (-5000 mmH 2 O) set by the suction pressure upper limit value setting means 42 and the suction pressure lower limit value setting means 51 are set. Lower limit value J
The suction pressure swing command means 52 controls the opening degree of the outside air introduction valve 28 so that the suction pressure of the blower 25, that is, the suction pressure in the transportation pipe 6 repeatedly changes between (-3000 mmH 2 O). The point is different from that of the first embodiment.
【００３０】これを図３及び図４に基づき更に詳述する
と、吸引圧力スイング指令手段５２は、圧力計３１によ
り検出されるブロワ２５の吸引圧力と吸引圧力上限値設
定手段４２により設定した上限値Ｃと吸引圧力下限値設
定手段により設定した下限値Ｊとをみて、ブロワ２５の
吸引圧力が上限値Ｃとなれば弁開信号を出力し、ブロワ
２５の吸引圧力が下限値Ｊとなれば弁閉信号を出力する
切換器５３と、切換器５３からの弁開信号を受けて外気
導入弁駆動部３３に対して外気導入弁２８を開くように
指示する正転指令を出力する正転指令手段５４と、切換
器５３からの弁閉信号を受けて外気導入弁駆動部３３に
対して外気導入弁２８を閉じるように指示する逆転指令
を出力する逆転指令手段５５とから構成されている。そ
れ以外の構成は上述の実施例１と同様である。This will be described in more detail with reference to FIGS. 3 and 4. The suction pressure swing command means 52 has the suction pressure of the blower 25 detected by the pressure gauge 31 and the upper limit value set by the suction pressure upper limit value setting means 42. C and the lower limit value J set by the suction pressure lower limit value setting means, a valve opening signal is output when the suction pressure of the blower 25 reaches the upper limit value C, and a valve is output when the suction pressure of the blower 25 reaches the lower limit value J. A switch 53 that outputs a closing signal, and a forward rotation command means that receives a valve opening signal from the switching device 53 and outputs a forward rotation command that instructs the outside air introduction valve drive unit 33 to open the outside air introduction valve 28. 54, and a reverse rotation command means 55 that outputs a reverse rotation command for instructing the external air introduction valve drive unit 33 to close the external air introduction valve 28 in response to a valve closing signal from the switch 53. The other structure is the same as that of the first embodiment.
【００３１】次に、この実施例装置を用いてごみ真空輸
送装置の閉塞状態を解除する運転方法について図３及び
図４に基づき説明する。なお、閉塞を閉塞判定手段３６
により検出するまでの動作は上述の実施例１と同様であ
るので、ここでは閉塞が検出されたものとして説明す
る。まず、吸引圧力上限値設定手段４２は、閉塞判定手
段３６から輸送管６内が閉塞されたことが知らせられる
と、外気導入弁２８の作動開始点となるブロワ２５の吸
引圧力の上限値Ｃ（−５０００mmＨ2 Ｏ）をメモリ４１
より読み込み、吸引圧力スイング指令手段５２の切換器
５３に出力する。また、吸引圧力下限値設定手段５１
は、閉塞判定手段３６から輸送管６内が閉塞されたこと
が知らせられると、外気導入弁２８の外気導入弁２８の
閉動作開始点となるブロワ２５の吸引圧力の下限値Ｊ
（−３０００mmＨ2 Ｏ）をメモリ４１より読み込み、吸
引圧力スイング指令手段５２の切換器５３に出力する。Next, an operating method for releasing the closed state of the dust vacuum transportation apparatus using this apparatus will be described with reference to FIGS. 3 and 4. It should be noted that the blockage determination means 36
Since the operation up to the detection by is the same as that in the above-described first embodiment, description will be given here assuming that the occlusion is detected. First, when the suction pressure upper limit value setting unit 42 is notified by the blockage determination unit 36 that the inside of the transportation pipe 6 is blocked, the suction pressure upper limit value C (of the suction pressure of the blower 25, which is the operation start point of the outside air introduction valve 28, -5000 mmH 2 O) memory 41
It is read in and output to the switch 53 of the suction pressure swing command means 52. Also, the suction pressure lower limit value setting means 51
When the blockage determination means 36 notifies that the inside of the transportation pipe 6 is blocked, the lower limit value J of the suction pressure of the blower 25, which is the starting point of the closing operation of the outside air introduction valve 28 of the outside air introduction valve 28,
(-3000 mmH 2 O) is read from the memory 41 and output to the switch 53 of the suction pressure swing command means 52.
【００３２】切換器５３では、圧力計３１により検出さ
れるブロワ２５の吸引圧力を常時みており、ブロワ２５
の吸引圧力すなわち輸送管６内の吸引圧力が吸引圧力上
限値設定手段４２により設定した上限値Ｃとなれば正転
指令手段５４に対して弁開信号を出力し、ブロワ２５の
吸引圧力（輸送管６内の吸引圧力）が吸引圧力下限値設
定手段５１により設定した下限値Ｊとなれば逆転指令手
段５５に対して弁閉信号を出力する。正転指令手段５４
は、切換器５３から弁開信号の入力があると外気導入弁
駆動部３３に対して外気導入弁２８を開くように指示す
る。外気導入弁駆動部３３は正転指令手段５４の指示に
従って外気導入弁２８を開駆動し、外気導入弁２８より
ブロワ２５の吸引側に外気を取り入れさせる。また、逆
転指令手段５５は、切換器５３から弁閉信号の入力があ
ると外気導入弁駆動部３３に対して外気導入弁２８を閉
じるように指示する。外気導入弁駆動部３３は、逆転指
令手段５５の指示に従って外気導入弁２８を閉駆動し、
ブロワ２５の吸引圧力（輸送管６内の吸引圧力）を高め
る。ここで、外気導入弁２８を閉駆動した場合、閉塞が
解除されていなければ外気導入弁２８を完全に閉じる前
に、ブロワ２５の吸引圧力（輸送管６内の吸引圧力）が
上限値Ｃまで高まることが実験の結果判明している。従
って、外気導入弁２８の閉動作は、外気導入弁２８が完
全に閉じる前に通常切換器５３により切り換えられ反転
する。このような反復動作は、閉塞継続時間判定部４４
によって閉塞解除不能と判定されるまでの所定時間内に
おいて閉塞が解除されるまで行われ、この所定時間内に
おいて閉塞が解除されれば、すなわち閉塞解除点Ｉ以降
は通常の運転状態に復帰する。In the switch 53, the suction pressure of the blower 25 detected by the pressure gauge 31 is constantly monitored, and the blower 25
When the suction pressure of the suction pipe, that is, the suction pressure in the transport pipe 6 reaches the upper limit value C set by the suction pressure upper limit value setting means 42, a valve opening signal is output to the forward rotation command means 54, and the suction pressure of the blower 25 (transportation When the suction pressure in the pipe 6) reaches the lower limit value J set by the suction pressure lower limit value setting means 51, a valve closing signal is output to the reverse rotation command means 55. Forward rotation command means 54
When the valve open signal is input from the switch 53, it instructs the outside air introduction valve drive unit 33 to open the outside air introduction valve 28. The outside air introduction valve drive unit 33 drives the outside air introduction valve 28 to open according to the instruction of the normal rotation instruction means 54, and causes the outside air to be taken into the suction side of the blower 25 from the outside air introduction valve 28. Further, when the valve closing signal is input from the switch 53, the reverse rotation command means 55 instructs the outside air introduction valve drive unit 33 to close the outside air introduction valve 28. The outside air introduction valve drive unit 33 drives the outside air introduction valve 28 to close according to the instruction of the reverse rotation instruction means 55,
The suction pressure of the blower 25 (suction pressure in the transport pipe 6) is increased. Here, when the outside air introduction valve 28 is driven to close, the suction pressure of the blower 25 (suction pressure in the transport pipe 6) reaches the upper limit value C before the outside air introduction valve 28 is completely closed unless the blockage is released. It is known as a result of the experiment that it will increase. Therefore, the closing operation of the outside air introduction valve 28 is switched and reversed by the normal switch 53 before the outside air introduction valve 28 is completely closed. Such repetitive operation is performed by the blockage duration determination unit 44.
It is performed until the blockage is released within a predetermined time until it is determined that the blockage cannot be released by, and if the blockage is released within this predetermined time, that is, after the blockage release point I, the normal operation state is restored.
【００３３】したがって、この実施例においては、輸送
管６内を閉塞しているごみを、ブロワ２５の吸引圧力の
強制的な変動によって輸送管６内で前後に揺り動かすこ
とができ、これにより輸送管６内を閉塞しているごみに
隙間を発生させることができる。一旦隙間が発生する
と、この隙間にごみ輸送のための空気流が発生し、これ
が突破口となって閉塞を容易に解除することができる。Therefore, in this embodiment, the dust blocking the inside of the transport pipe 6 can be rocked back and forth within the transport pipe 6 by the forcible fluctuation of the suction pressure of the blower 25. A gap can be generated in the dust that blocks the inside of 6. Once a gap is generated, an air flow for transporting dust is generated in this gap, which serves as a breakthrough to easily release the blockage.
【００３４】実施例３．図５は本発明の第３の実施例に
係るごみ真空輸送装置の閉塞解除運転装置の回路構成を
示すブロック図、図６はこの実施例の装置を用いてごみ
真空輸送装置の閉塞状態を解除する運転方法の一例を示
す説明図、図７はこの実施例の装置を用いてごみ真空輸
送装置の閉塞状態を解除する運転方法の他の例を示す説
明図であり、各図中、上述の実施例１及び実施例２に相
当する部分には同一符号を付してある。Example 3. FIG. 5 is a block diagram showing a circuit configuration of a blockage release operation device for a dust vacuum transportation device according to a third embodiment of the present invention, and FIG. 6 is a block diagram showing the blockage state of the dust vacuum transportation device using the device of this example. FIG. 7 is an explanatory view showing an example of an operating method to be performed, and FIG. 7 is an explanatory view showing another example of an operating method for releasing the closed state of the dust vacuum transportation device by using the device of this embodiment. The parts corresponding to those of the first and second embodiments are designated by the same reference numerals.
【００３５】この実施例のごみ真空輸送装置の閉塞解除
運転装置は、実施例１で説明したコントローラ４３によ
る外気導入弁制御機能と実施例２で説明した吸引圧力ス
イング指令手段５２による外気導入弁制御機能の双方の
機能を併せ持ち、コントローラ４３による吸引圧力の上
限値保持制御と吸引圧力スイング指令手段５２による吸
引圧力の上限値と下限値間の変動制御とを、切換器６１
が所定時間毎に連続的に切換えて行なわせるようにした
点が上述の実施例１及び実施例２のものと異なってい
る。The blockage release operation device of the dust vacuum transportation device of this embodiment is the outside air introduction valve control function by the controller 43 described in the first embodiment and the outside air introduction valve control by the suction pressure swing command means 52 described in the second embodiment. The switcher 61 has both functions of the suction pressure upper limit holding control by the controller 43 and the suction pressure swing command means 52 fluctuation control between the suction pressure upper limit value and the suction pressure upper limit value.
Is different from that of the first and second embodiments described above in that it is continuously switched every predetermined time.
【００３６】この実施例において、閉塞判定手段３６に
より輸送管６内の閉塞が検出されると、切換器６１が、
コントローラ４３による吸引圧力の上限値保持制御と吸
引圧力スイング指令手段５２による吸引圧力の上限値と
下限値間の変動制御とを、図６あるいは図７に示す如く
所定時間毎に連続的に切換えて行なわせる。この連続的
に切換えられて行われる上限値保持制御と変動制御は、
閉塞継続時間判定部４４によって閉塞解除不能と判定さ
れるまでの所定時間内において閉塞が解除されるまで行
われ、この所定時間内において閉塞が解除されれば通常
の運転状態に復帰する。In this embodiment, when the blockage judging means 36 detects blockage in the transportation pipe 6, the switching device 61
The suction pressure upper limit holding control by the controller 43 and the suction pressure swing command means 52 fluctuation control between the suction pressure upper and lower limits are continuously switched at predetermined time intervals as shown in FIG. 6 or 7. Let me do it. The upper limit value holding control and the fluctuation control that are continuously switched are
It is performed until the blockage is released within a predetermined time until the blockage continuation time determination unit 44 determines that the blockage cannot be released. If the blockage is released within the predetermined time, the normal operation state is restored.
【００３７】この実施例においては、コントローラ４３
による吸引圧力の上限値保持制御と吸引圧力スイング指
令手段５２による吸引圧力の上限値と下限値間の変動制
御とを、切換器６１が所定時間毎に連続的に切換えて行
なわせるので、輸送管６内を閉塞しているごみを前後に
より複雑に揺り動かすことができ、閉塞の解除を一層確
実に行なわせることができる。In this embodiment, the controller 43
The switching device 61 continuously switches the suction pressure upper limit value holding control by the suction pressure swing commanding means 52 between the suction pressure upper limit value and the suction pressure swing command means 52 between the suction pressure upper limit value and the suction pressure swing lower limit value. The dust blocking the inside of 6 can be rocked in a more complicated manner forward and backward, and the blocking can be released more reliably.
【００３８】なお、上述の各実施例においては、いずれ
も外気導入弁２８と圧力計３１をブロワ２５近傍の吸引
側配管２７上に設けたものを例に挙げて説明したが、こ
れら外気導入弁２８と圧力計３１は、ブロワ２５との間
に遮断弁等の介在物のない吸引側配管上であれば何処に
設置してもよく、更に圧力計３１は外気導入弁２８より
も上流側に配置してもよい。いずれの場合でも、上述の
各実施例同様の作用効果を奏する。In each of the above-mentioned embodiments, the outside air introducing valve 28 and the pressure gauge 31 are provided on the suction side pipe 27 near the blower 25 as an example. The pressure gauge 31 and the pressure gauge 31 may be installed anywhere on the suction side pipe where there is no inclusion such as a shutoff valve between the blower 25 and the pressure gauge 31 is located upstream of the outside air introduction valve 28. You may arrange. In any case, the same operational effects as the above-mentioned respective embodiments are exhibited.
【００３９】[0039]
【発明の効果】以上述べたように、本発明によれば、ご
み輸送管を介して外気を吸引することによりごみを輸送
するための空気流を発生させるブロワの吸引圧力を圧力
計により検出した値と予め設定した設定値との差から輸
送管内の閉塞を検出し、輸送管内の閉塞が検出される
と、予め設定された上限値にブロワの吸引圧力が保持さ
れるように、ブロワの吸引側配管に設けた外気導入弁の
開度を調整して、輸送管内を吸引しつつ輸送管外よりブ
ロワの吸引側に空気を取り入れさせるようにしたので、
安全弁である外気導入弁が作動してもごみ輸送管内の吸
引圧力を確保することができ、その吸引圧力にて閉塞を
解除することができる。As described above, according to the present invention, the suction pressure of the blower for generating the air flow for transporting the dust by sucking the outside air through the dust transport pipe is detected by the pressure gauge. The blockage in the transport pipe is detected from the difference between the value and the preset value, and when the blockage in the transport pipe is detected, the suction pressure of the blower is held so that the suction pressure of the blower is maintained at the preset upper limit value. Since the opening of the outside air introduction valve provided on the side pipe is adjusted so that air is taken in from the outside of the transportation pipe to the suction side of the blower while sucking inside the transportation pipe,
Even if the outside air introduction valve, which is a safety valve, operates, the suction pressure in the dust transport pipe can be secured, and the suction pressure can release the blockage.
【００４０】また、本発明によれば、輸送管内の閉塞が
検出されると、予め設定された上限値と下限値の間でブ
ロワの吸引圧力が変動を繰り返すように、ブロワの吸引
側配管に設けた外気導入弁の開度を調整して、輸送管内
を吸引しつつ輸送管外よりブロワの吸引側に空気を取り
入れさせるようにしたので、輸送管内を閉塞しているご
みを輸送管内で前後に揺り動かすことができて隙間を発
生させることができ、この隙間にごみ輸送のための空気
流を発生させることができる。このため、隙間が突破口
となって閉塞を容易に解除することができる。Further, according to the present invention, when the blockage in the transportation pipe is detected, the suction side pipe of the blower is so arranged that the suction pressure of the blower repeatedly fluctuates between a preset upper limit value and a lower limit value. By adjusting the opening of the provided outside air introduction valve, air was taken in from the outside of the transportation pipe to the suction side of the blower while sucking inside the transportation pipe. It can be swung to generate a gap, and an air flow for transporting dust can be generated in this gap. Therefore, the gap serves as a breakthrough port, and the blockage can be easily released.
【００４１】また、本発明によれば、輸送管内の閉塞が
検出されると、予め設定された上限値にブロワの吸引圧
力が保持されるように、ブロワの吸引側配管に設けた外
気導入弁の開度を所定時間調整する処理と、予め設定さ
れた上限値と下限値の間でブロワの吸引圧力が変動を繰
り返すように、外気導入弁の開度を所定時間調整する処
理とを、連続的に切換えて行なわせて、輸送管内を吸引
しつつ輸送管外よりブロワの吸引側に空気を取り入れさ
せるようにしたので、閉塞の解除をより確実に行なわせ
ることができる。Further, according to the present invention, when the blockage in the transportation pipe is detected, the outside air introduction valve provided in the suction side pipe of the blower is held so that the suction pressure of the blower is maintained at the preset upper limit value. The process of adjusting the opening of the outside air introduction valve for a predetermined time and the process of adjusting the opening of the outside air introduction valve for a predetermined time so that the suction pressure of the blower repeatedly varies between preset upper and lower limits, Since the air is taken into the suction side of the blower from the outside of the transportation pipe while suctioning the inside of the transportation pipe, the blockage can be released more reliably.
【図１】本発明の第１の実施例に係るごみ真空輸送装置
の閉塞解除運転装置の回路構成を示すブロック図であ
る。FIG. 1 is a block diagram showing a circuit configuration of a blockage release operation device of a refuse vacuum transportation device according to a first embodiment of the present invention.
【図２】第１の実施例の装置を用いた閉塞解除運転方法
の説明図である。FIG. 2 is an explanatory diagram of a blockage release operation method using the device of the first embodiment.
【図３】本発明の第２の実施例に係るごみ真空輸送装置
の閉塞解除運転装置の回路構成を示すブロック図であ
る。FIG. 3 is a block diagram showing a circuit configuration of a blockage release operation device of a refuse vacuum transportation device according to a second embodiment of the present invention.
【図４】第２の実施例の装置を用いた閉塞解除運転方法
の説明図である。FIG. 4 is an explanatory diagram of a blockage release operation method using the device of the second embodiment.
【図５】本発明の第３の実施例に係るごみ真空輸送装置
の閉塞解除運転装置の回路構成を示すブロック図であ
る。FIG. 5 is a block diagram showing a circuit configuration of a blockage release operation device of a refuse vacuum transportation device according to a third embodiment of the present invention.
【図６】第３の実施例の装置を用いた閉塞解除運転方法
の一例を示す説明図である。FIG. 6 is an explanatory diagram showing an example of a blockage release operation method using the device of the third embodiment.
【図７】第３の実施例の装置を用いた閉塞解除運転方法
の他の例を示す説明図である。FIG. 7 is an explanatory diagram showing another example of a blockage release operation method using the device of the third embodiment.
【図８】従来のごみ真空輸送装置の閉塞解除方法を説明
するためのごみ空気輸送プラントの系統図である。[Fig. 8] Fig. 8 is a system diagram of a refuse pneumatic transportation plant for explaining a method for releasing blockage of a conventional refuse vacuum transportation device.
【図９】従来のブロワの吸引圧力の変動を説明するため
の説明図である。FIG. 9 is an explanatory diagram for explaining a change in suction pressure of a conventional blower.
【図１０】従来装置の動作の説明図である。FIG. 10 is an explanatory diagram of the operation of the conventional device.
６ 輸送管 ２５ ブロワ ２７ 配管（吸引側配管） ２８ 外気導入弁 ３１ 圧力計 ３２ 比較器 ３６ 閉塞判定手段 ４２ 吸引圧力上限値設定手段 ４３ コントローラ ５１ 吸引圧力下限値設定手段 ５２ 吸引圧力スイング指令手段 ６１ 切換器 6 Transport Pipe 25 Blower 27 Pipe (Suction Side Pipe) 28 Outside Air Introduction Valve 31 Pressure Gauge 32 Comparator 36 Blockage Judging Means 42 Suction Pressure Upper Limit Setting Means 43 Controller 51 Suction Pressure Lower Limit Setting Means 52 Suction Pressure Swing Command Means 61 Switching vessel
Claims (6)
によりごみを輸送するための空気流を発生させるブロワ
の吸引圧力を検出する工程と、 上記ブロワの吸引圧力の値と予め設定された設定値との
差から輸送管内の閉塞を検出する工程と、 輸送管内の閉塞が検出されると、予め設定された上限値
にブロワの吸引圧力が保持されるように、ブロワの吸引
側配管に設けた外気導入弁の開度を調整して、輸送管内
を吸引しつつ輸送管外よりブロワの吸引側に空気を取り
入れる工程とを有することを特徴とするごみ真空輸送装
置の閉塞解除運転方法。1. A step of detecting a suction pressure of a blower that generates an air flow for transporting dust by sucking outside air through a dust transport pipe; a value of the suction pressure of the blower and a preset value. In the process of detecting blockage in the transport pipe from the difference from the set value, and when the blockage in the transport pipe is detected, the suction side pipe of the blower is held so that the suction pressure of the blower is maintained at the preset upper limit value. Adjusting the opening degree of the provided outside air introduction valve, and taking in air from the outside of the transportation pipe to the suction side of the blower while suctioning the inside of the transportation pipe.
によりごみを輸送するための空気流を発生させるブロワ
の吸引圧力を検出する工程と、 上記ブロワの吸引圧力の値と予め設定された設定値との
差から輸送管内の閉塞を検出する工程と、 輸送管内の閉塞が検出されると、予め設定された上限値
と下限値の間でブロワの吸引圧力が変動を繰り返すよう
に、ブロワの吸引側配管に設けた外気導入弁の開度を調
整して、輸送管内を吸引しつつ輸送管外よりブロワの吸
引側に空気を取り入れる工程とを有することを特徴とす
るごみ真空輸送装置の閉塞解除運転方法。2. A step of detecting a suction pressure of a blower that generates an air flow for transporting dust by sucking outside air through a dust transport pipe, a value of the suction pressure of the blower, and a preset value. The process of detecting blockage in the transport pipe from the difference between the set value and the blocker in the blower so that when the blockage in the transport pipe is detected, the suction pressure of the blower repeats fluctuation between the preset upper and lower limit values. Adjusting the opening degree of the outside air introduction valve provided in the suction side pipe, and taking in air from the outside of the transportation pipe to the suction side of the blower while sucking the inside of the transportation pipe, Closure release operation method.
によりごみを輸送するための空気流を発生させるブロワ
の吸引圧力を検出する工程と、 上記ブロワの吸引圧力の値と予め設定された設定値との
差から輸送管内の閉塞を検出する工程と、 輸送管内の閉塞が検出されると、予め設定された上限値
にブロワの吸引圧力が保持されるように、ブロワの吸引
側配管に設けた外気導入弁の開度を所定時間調整する処
理と、予め設定された上限値と下限値の間でブロワの吸
引圧力が変動を繰り返すように、上記外気導入弁の開度
を所定時間調整する処理とを有し、輸送管内を吸引しつ
つ輸送管外よりブロワの吸引側に空気を取り入れる工程
とを有することを特徴とするごみ真空輸送装置の閉塞解
除運転方法。3. A step of detecting a suction pressure of a blower that generates an air flow for transporting dust by sucking outside air through a dust transport pipe, a value of the suction pressure of the blower, and a preset value. In the process of detecting blockage in the transport pipe from the difference from the set value, and when the blockage in the transport pipe is detected, the suction side pipe of the blower is held so that the suction pressure of the blower is maintained at the preset upper limit value. The process of adjusting the opening degree of the provided outside air introduction valve for a certain period of time, and adjusting the opening degree of the outside air introduction valve for a certain period of time so that the suction pressure of the blower repeats fluctuations between preset upper and lower limits. And a step of taking in air from the outside of the transportation pipe to the suction side of the blower while sucking the inside of the transportation pipe.
によりごみを輸送するための空気流を発生させるブロワ
の吸引側配管に設けられ、ブロワの吸引圧力を検出する
圧力計と、 上記ブロワの吸引側配管に設けられた外気導入弁と、 該外気導入弁の開度を調整する弁駆動手段と、 上記圧力計により検出されたブロワの吸引圧力の値と予
め設定された設定値との差に基づいて、輸送管内がごみ
により閉塞されているかどうかを判定し、閉塞されてい
ると判定された場合には閉塞信号を出力する閉塞判定手
段と、 上記閉塞信号が出力されるとそれを入力し、ブロワの吸
引圧力が予め設定された上限値に保持されるように、上
記弁駆動手段を介して上記外気導入弁の開度を調整し
て、上記輸送管内を吸引しつつ輸送管外よりブロワの吸
引側に空気を取り入れさせる制御手段とを備えてなるご
み真空輸送装置の閉塞解除運転装置。4. A pressure gauge provided on a suction side pipe of a blower for generating an air flow for transporting dust by sucking outside air through the dust transport pipe, and a pressure gauge for detecting suction pressure of the blower; Of the outside air introduction valve provided in the suction side pipe, valve driving means for adjusting the opening degree of the outside air introduction valve, and the value of the suction pressure of the blower detected by the pressure gauge and the preset value. Based on the difference, it is determined whether or not the inside of the transportation pipe is blocked by dust, and if it is determined that it is blocked, a blocking determination unit that outputs a blocking signal, and when the blocking signal is output Input, and adjust the opening of the outside air introduction valve through the valve driving means so that the suction pressure of the blower is maintained at a preset upper limit value, and the outside of the transportation pipe while sucking inside the transportation pipe. Air on the suction side of the blower Unblocking operation system of waste vacuum transport device comprising a intake causes control means.
によりごみを輸送するための空気流を発生させるブロワ
の吸引側配管に設けられ、ブロワの吸引圧力を検出する
圧力計と、 上記ブロワの吸引側配管に設けられた外気導入弁と、 該外気導入弁の開度を調整する弁駆動手段と、 上記圧力計により検出されたブロワの吸引圧力の値と予
め設定された設定値との差に基づいて、輸送管内がごみ
により閉塞されているかどうかを判定し、閉塞されてい
ると判定された場合には閉塞信号を出力する閉塞判定手
段と、 上記閉塞信号が出力されるとそれを入力し、ブロワの吸
引圧力が予め設定された上限値と下限値の間で変動を繰
り返すように、上記弁駆動手段を介して上記外気導入弁
の開度を調整して、上記輸送管内を吸引しつつ輸送管外
よりブロワの吸引側に空気を取り入れさせる制御手段と
を備えてなるごみ真空輸送装置の閉塞解除運転装置。5. A pressure gauge for detecting suction pressure of a blower, which is provided in a suction side pipe of a blower for generating an air flow for transporting dust by sucking outside air through the dust transport pipe, and the blower. Of the outside air introduction valve provided in the suction side pipe, valve driving means for adjusting the opening degree of the outside air introduction valve, and the value of the suction pressure of the blower detected by the pressure gauge and the preset value. Based on the difference, it is determined whether or not the inside of the transportation pipe is blocked by dust, and if it is determined that it is blocked, a blocking determination unit that outputs a blocking signal, and when the blocking signal is output Input, and adjust the opening of the outside air introduction valve through the valve drive means so that the suction pressure of the blower repeatedly fluctuates between the upper limit value and the lower limit value set in advance, and suck the inside of the transport pipe. While transporting from outside the pipe Unblocking operation system of waste vacuum transport device comprising a control means for creating incorporating air into the suction side of the.
によりごみを輸送するための空気流を発生させるブロワ
の吸引側配管に設けられ、ブロワの吸引圧力を検出する
圧力計と、 上記ブロワの吸引側配管に設けられた外気導入弁と、 該外気導入弁の開度を調整する弁駆動手段と、 上記圧力計により検出されたブロワの吸引圧力の値と予
め設定された設定値との差に基づいて、輸送管内がごみ
により閉塞されているかどうかを判定し、閉塞されてい
ると判定された場合には閉塞信号を出力する閉塞判定手
段と、 上記閉塞信号が出力されるとそれを入力し、ブロワの吸
引圧力が予め設定された上限値に保持されるように、上
記弁駆動手段を介してブロワの吸引側配管に設けた外気
導入弁の開度を所定時間調整する処理と、予め設定され
た上限値と下限値の間でブロワの吸引圧力が変動を繰り
返すように、上記外気導入弁の開度を所定時間調整する
処理とを、連続的に切換えて行なわせて上記輸送管内を
吸引しつつ輸送管外よりブロワの吸引側に空気を取り入
れさせる制御手段とを備えてなるごみ真空輸送装置の閉
塞解除運転装置。6. A pressure gauge for detecting suction pressure of the blower, which is provided in a suction side pipe of a blower for generating an air flow for transporting the dust by sucking outside air through the dust transport pipe, and the blower. Of the outside air introduction valve provided in the suction side pipe, valve driving means for adjusting the opening degree of the outside air introduction valve, and the value of the suction pressure of the blower detected by the pressure gauge and the preset value. Based on the difference, it is determined whether or not the inside of the transportation pipe is blocked by dust, and if it is determined that it is blocked, a blocking determination unit that outputs a blocking signal, and when the blocking signal is output Input, so that the suction pressure of the blower is maintained at a preset upper limit value, a process of adjusting the opening degree of the outside air introduction valve provided in the suction side pipe of the blower through the valve driving means for a predetermined time, Preset upper limit The process of adjusting the opening degree of the outside air introduction valve for a predetermined time so that the suction pressure of the blower repeatedly fluctuates between the lower limit values is continuously switched so that the inside of the transportation pipe is sucked while suctioning the inside of the transportation pipe. A blockage release operation device for a dust vacuum transportation device, comprising: a control means for taking air into the suction side of a blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7842794A JPH07285609A (en) | 1994-04-18 | 1994-04-18 | Method for removing operation of clogging of refuse vacuum transporting device, and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7842794A JPH07285609A (en) | 1994-04-18 | 1994-04-18 | Method for removing operation of clogging of refuse vacuum transporting device, and device therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07285609A true JPH07285609A (en) | 1995-10-31 |
Family
ID=13661751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7842794A Pending JPH07285609A (en) | 1994-04-18 | 1994-04-18 | Method for removing operation of clogging of refuse vacuum transporting device, and device therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07285609A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100890943B1 (en) * | 2007-06-04 | 2009-03-27 | 엔백 주식회사 | A system for controlling air suction valve in automatic refuge collecting equipment |
| KR100921607B1 (en) * | 2007-12-07 | 2009-10-15 | 현대건설주식회사 | Refuse carriage collecting processing system of pipe leakage |
| KR101041046B1 (en) * | 2008-11-17 | 2011-06-13 | 엔백 주식회사 | A protection system for secure operation of refuse collection equipment |
| CN109001418A (en) * | 2018-04-28 | 2018-12-14 | 中国矿业大学 | A kind of aqueous coal body de-plugging aptitude tests device and test method |
| KR20190125399A (en) * | 2017-03-15 | 2019-11-06 | 코아 플로우 리미티드 | Contactless support platform with occlusion detection |
| WO2024048095A1 (en) * | 2022-08-31 | 2024-03-07 | 株式会社カネカ | Management system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6016407B2 (en) * | 1976-12-03 | 1985-04-25 | マイヤ− ル−イス コ−バル | Improved method for producing gamma globulin for intravenous injection |
| JPH02265801A (en) * | 1989-04-06 | 1990-10-30 | Fuji Heavy Ind Ltd | Method of controlling release of blockage of transport pipe in pneumatic refuse conveying system |
-
1994
- 1994-04-18 JP JP7842794A patent/JPH07285609A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6016407B2 (en) * | 1976-12-03 | 1985-04-25 | マイヤ− ル−イス コ−バル | Improved method for producing gamma globulin for intravenous injection |
| JPH02265801A (en) * | 1989-04-06 | 1990-10-30 | Fuji Heavy Ind Ltd | Method of controlling release of blockage of transport pipe in pneumatic refuse conveying system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100890943B1 (en) * | 2007-06-04 | 2009-03-27 | 엔백 주식회사 | A system for controlling air suction valve in automatic refuge collecting equipment |
| KR100921607B1 (en) * | 2007-12-07 | 2009-10-15 | 현대건설주식회사 | Refuse carriage collecting processing system of pipe leakage |
| KR101041046B1 (en) * | 2008-11-17 | 2011-06-13 | 엔백 주식회사 | A protection system for secure operation of refuse collection equipment |
| KR20190125399A (en) * | 2017-03-15 | 2019-11-06 | 코아 플로우 리미티드 | Contactless support platform with occlusion detection |
| US11305950B2 (en) | 2017-03-15 | 2022-04-19 | Core Flow Ltd. | Noncontact support platform with blockage detection |
| CN109001418A (en) * | 2018-04-28 | 2018-12-14 | 中国矿业大学 | A kind of aqueous coal body de-plugging aptitude tests device and test method |
| CN109001418B (en) * | 2018-04-28 | 2020-03-17 | 中国矿业大学 | Device and method for testing plugging removal capability of hydrous coal body |
| WO2024048095A1 (en) * | 2022-08-31 | 2024-03-07 | 株式会社カネカ | Management system |
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