JP2004035250A - Operating method for silo - Google Patents

Operating method for silo Download PDF

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Publication number
JP2004035250A
JP2004035250A JP2002198848A JP2002198848A JP2004035250A JP 2004035250 A JP2004035250 A JP 2004035250A JP 2002198848 A JP2002198848 A JP 2002198848A JP 2002198848 A JP2002198848 A JP 2002198848A JP 2004035250 A JP2004035250 A JP 2004035250A
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Prior art keywords
storage
silo
level
scraping device
operation method
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JP3874349B2 (en
Inventor
Shinichi Sakata
坂田　眞一
Atsushi Yokota
横田　敦
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NGK Insulators Ltd
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NGK Insulators Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To reduce power consumption of a raking device (the first invention). <P>SOLUTION: (First invention) A silo is provided with a raking device 3 having a pivotable blade part 31 raking a stored matter 2 on the bottom surface of a storage tank 1 and feeding it to a discharge port 12. A storage level of the stored matter 2 is timely detected by an ultrasonic sensor 5, and if the storage level is smaller than a preset startup level, an operation starting signal is transmitted from a transmission part 51 attached to the ultrasonic sensor 5 to a drive part 32 of the raking device 3 to operate the raking device 3. If the storage level is larger than the preset operation stopping level, the operation of the raking device 3 is stopped. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、サイロの運転方法に関するものであって、特に、流動性汚泥などを貯留する大型のサイロの運転方法の改良に関する。
【０００２】
【従来の技術】
従来、サイロは一般に図２に示すように、対象物を貯留するための貯留槽１には、貯留物２を投入する投入口１１が最上部に設けられ、貯留物２を排出するための排出口１２が底面に設けられている。そして、この貯留槽の底面上には、貯留物を掻き寄せて排出口１２に送り込む回転可能な羽根部３１を有する掻き寄せ装置３が配置され、排出口１２に送り込まれた貯留物２は、排出口１２から連続するシュート１２ａを通じて、スクリュー式排出装置４によって外部に排出するよう構成されている。また、貯留槽１内の貯留物２の物量を超音波センサ６５にて検知し、超音波センサ６５に付属する発信部６１５１にて貯留レベルが予め設定したレベル値より大の場合には貯留物２の投入を停止し、貯留レベルが予め設定したレベル値より小の場合には貯留物２の排出を停止する。
【０００３】
このようなサイロでは、前記掻き寄せ装置３は、貯留物の貯留量、すなわち貯留レベルとは無関係に排出装置４が運転中には常時運転しているのが一般的であった。そのため、羽根駆動装置の設計トルクは、貯留槽１が満杯状態のときに羽根部３１にかかる貯留物圧力を基準に設定していたうえ、電力消費量も相当量に達していた。さらに、貯留槽１が空の場合に貯留物を投入するときに、最上部から落下する貯留物の衝突によって、前記掻き寄せ装置３の羽根部３１を破損するおそれもあった。
【０００４】
【発明が解決しようとする課題】
本発明は、上記の問題点を解決するためになされたものであり、前記掻き寄せ装置の電力消費量を削減できるサイロの運転方法を提供し、また、前記掻き寄せ装置の羽根部の破損を防止できるサイロの運転方法を提供する。
【０００５】
【課題を解決するための手段】
上記の問題は、第１発明である、貯留物を底面の排出口から排出するために、貯留槽の底面上に、回転可能な羽根部を有する掻き寄せ装置を配置したサイロの運転方法であって、貯留物の貯留レベルが所定値より小の場合に掻き寄せ装置を運転し、貯留レベルが所定値より大の場合に運転を中止することを特徴とするサイロの運転方法によって、解決することができる。
【０００６】
また、上記の問題は、第２発明である、貯留物を底面の排出口から排出するために、貯留槽の底面上に、回転可能な羽根部を有する掻き寄せ装置を配置したサイロの運転方法であって、貯留物の貯留レベルが所定値より大の場合に貯留槽の最上部に設けた貯留物投入口から貯留物を投入し、貯留レベルが所定値より小の場合に貯留槽の側面に設けた第２の貯留物投入口から貯留物を投入することを特徴とするサイロの運転方法によって、解決することができる。
【０００７】
さらには、本発明は、上記第１発明と第２発明とを併用するサイロの運転方法として具体化される。また、これらの場合、貯留物の貯留レベル検知手段として、超音波センサまたは圧力センサまたは重量センサを用いるのが好ましい。
【０００８】
【発明の実施の形態】
次に、本発明のサイロの運転方法に係る実施形態について、図１を参照しながら説明する。
（第１発明）
本発明のサイロの運転方法を実施するサイロの基本的構造は、先に説明したものと変わりはない。すなわち、図１に示すように、貯留槽１には、ポンプｐによって圧送された対象物例えば汚泥を投入するための投入口１１が最上部に設けられ、貯留物２を排出するための排出口１２が底面に設けられ、かつこの貯留槽１の底面上には、貯留物２を掻き寄せて排出口１２に送り込む回転可能な羽根部３１を有する掻き寄せ装置３が配置され、排出口１２に送り込まれた貯留物２は、排出口１２から連続するシュート１２ａを通じて、スクリュー式排出装置４によって外部に排出するよう構成されている。
【０００９】
本発明は、このようなサイロの運転方法であって、その特徴とするところは、貯留槽１内の貯留物２の物量を高さで表示する貯留レベルを貯留レベル検知手段、例えば超音波センサ５によって適時に検知し、貯留レベルが予め設定した運転開始レベル値より小の場合に、超音波センサ５に付属する発信部５１から運転開始信号を掻き寄せ装置３の駆動部３２に伝達し、掻き寄せ装置３を運転し、また貯留レベルが予め設定した運転停止レベル値より大の場合には同様に掻き寄せ装置３の運転を中止する点にある。
【００１０】
本発明は、貯留物２がある程度の貯留レベル、通常、２〜３ｍ以上の場合には、その自重によって排出口１２に送り込まれるという現象に着目して完成したものであり、貯留物が自重で排出口１２に送り込まれる貯留レベルの間は、掻き寄せ装置３の運転を中止することによって、消費電力を節減できるうえ、羽根駆動装置の設定トルクを１０〜３０％低減できるので、設備がコンパクトに設計できるという利点が得られるのである。
【００１１】
次に、前記した運転停止レベルまたは運転開始のレベルについて説明する。
この運転を調節する貯留物レベルは、貯留物２が自重によって排出シュート部を流動してスクリュー式排出装置４に到達できる場合の最低の高さ意味するのであるから、以下の手順で推定することが可能である。
先ず、貯留物の自重とシュート部圧損Ｐ［ＭＰａ］とが均衡する貯留レベルＨ０［ｍ］は、貯留物の密度をρ［Ｋｇ／ｍ３］として次の式１で求められる。
（式１）　Ｈ０＝Ｐ／９．８×１０− ６・ρ
【００１２】
ここで、シュート部圧損Ｐ［ＭＰａ］は、シュート部の高さｈ［ｍ］（図１参照）、ずり応力τ［ＭＰａ］、排出口径Ｄ「ｍ」から次の式２によって求めることができる。
（式２）Ｐ＝（４τ×ｈ／Ｄ）×１０―４［ＭＰａ］
なお、排出口径Ｄ「ｍ」は、排出口が矩形の場合には、その開口面積に相当する円孔の直径を示す。また、ずり応力τ［ＭＰａ］は、スクリュー式排出装置４の時間当たり排出量Ｑ［ｍ３／時間］とした場合、式３で求められるずり速度ｖ［１／ｓｅｃ］と貯留物の含水率等から算出される。
（式３）　ｖ＝８・Ｑ／π・Ｄ３×３６００［１／ｓｅｃ］
【００１３】
このように求められた貯留レベルＨ０［ｍ］は、貯留レベルがこれより大であれば貯留部は自重で排出口に流入する、また小であれば自重では流入しないことを意味するものであるが、実機では安全率を加味した貯留レベルＨ［ｍ］を想定したうえ、シーケンス制御値としてこの理論的な貯留レベルＨ［ｍ］の上側に運転停止レベル値および運転開始レベル値を設定すればよい。なお、この設定値は実機の試運転によって再調整されるのは勿論である。そして、汚泥を貯留物とする多くの場合には、運転停止レベル値は５〜６ｍ、運転開始レベル値は３〜４ｍに設定すれば目的が達せられるのである。
【００１４】
なお、前記実施では、貯留物の貯留レベル検知手段として、貯留槽１内部の上部に配置した超音波センサ５により貯留物の上面から反射される超音波を計測して貯留物の上面までの距離を算出し、貯留レベルを求めるようにした超音波センサを用いた事例であったが、貯留レベル検知手段としては、貯留槽底部にかかる圧力を検知して貯留レベルを推定するよう貯留槽底部に圧力センサを配置したり、貯留物の重量を検知して貯留レベルを推定するよう貯留槽底部に重量センサを配置して用いることもできる。
【００１５】
また、貯留レベルが運転停止レベルを上回って掻き寄せ装置３を停止する際、羽根部３１が排出口１２を覆うように位置した場合には貯留物２が円滑に排出されないおそれがある。そこで、このような事態を避けるため、羽根部３１の回転位置を検出して、その停止位置が排出口１２に重ならないよう調節するのがよい。例えば、羽根部３１の槽外の駆動軸に近接スイッチに作用する凸部（図示せず）を設け、かつ槽側には羽根部３１を停止させたい位置に近接スイッチ（図示せず）を設けて、運転停止レベルを下回った信号を受けた後、近接スイッチが作動した段階で掻き寄せ装置３を停止させるようにすればよい。
【００１６】
（第２発明）
次に、本発明の第２発明に係る実施形態について、同じく図１を参照しながら説明する。
この第２発明の特徴とするところは、前記同様な基本構造からなるサイロにおいて、最上部に設けた貯留物投入口１１の他に、第２の貯留物投入口１３を貯留槽１の側面に設けておき、貯留物２の貯留レベルが所定値より大の状態を超音波センサ５が検知した場合には、その発信部５１から伝達される制御信号によって、投入口１１、１３のそれぞれに連結された貯留対象物配管に設けた電動バルブ１１ａ、１３ａを開閉操作して、前記貯留物投入口１１から貯留物を投入するようにし、貯留レベルが所定値より小の場合には、同様な検知手段によって前記第２の貯留物投入口１３から貯留物を投入するように、投入口を切り換える点にある。
【００１７】
この場合、投入口を切り換える基準となる前記のバルブ切換レベル値は、掻き寄せ装置３の羽根部３１が貯留物２内に埋没し、最上部の投入口１１から汚泥など貯留物が投入されても羽根部３１の破損が避けられるようなレベルに設定すればよく、通常、その所定値は２〜３ｍとすればよい。
【００１８】
かくして、第２発明によれば、掻き寄せ装置３の羽根部３１が露出した状態で、最上部の投入口１１から汚泥など投入時の衝撃を受けることがなくなるから、羽根部３１の破損が完全に防止できるのである。また、投入口１１より低い位置に設けられた第２の投入口１３を用いるので、貯留物の圧送距離が短縮され圧送ポンプｐの電力消費量も削減できる利点が得られる。
【００１９】
なお、第２の投入口１３の設置高さは、この第２の投入口１３から投入される貯留物によって前記羽根部３１の破損が避けられるような位置に設定すればよいのはいうまでもない。また、第２発明においても、貯留物の貯留レベル検知手段として、超音波センサまたは圧力センサまたは重量センサが好適に用いられる。
【００２０】
さらには、本発明は、以上説明した第１発明の掻き寄せ装置の運転制御と第２発明の投入口切り換え制御を内容としたサイロの運転方法を超音波センサ５を共用して併用、実施することができ、上述したそれぞれの利点を享受することができるのある。なお、上記第１発明、第２発明における超音波センサ５と発信部５１は、先に説明した貯留物の投入、排出を制御するための超音波センサ６および発信部６１（図２参照）と兼用することができ、この場合にはそれぞれ専用の機器を付設する必要がないという利点が得られる。
【００２１】
【発明の効果】
本発明のサイロの運転方法は、以上説明したように構成されているので、第１発明によれば、掻き寄せ装置の電力消費量を削減でき、掻き寄せ装置のコンパクト化によりコストダウンも可能となる。また、第２発明によれば、掻き寄せ装置の羽根部の破損を防止できる、圧送ポンプの電力消費量が節減できる、などの優れた効果がある。よって本発明は、従来の問題点を解消したサイロの運転方法として、実用的価値はきわめて大なるものがある。
【図面の簡単な説明】
【図１】本発明の実施形態を説明するためのサイロの要部断面略図。
【図２】従来のサイロを説明するためのサイロの要部断面略図。
【符号の説明】
１　貯留槽、１１　投入口、１２　排出口、１２ａ　シュート、２　貯留物、３掻き寄せ装置、３１　羽根部、３２　駆動部、４　スクリュー式排出装置、５超音波センサ、５１　発信部、ｐ　圧送ポンプ。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a silo operation method, and more particularly to an improvement of a large silo operation method for storing fluid sludge and the like.
[0002]
[Prior art]
Conventionally, as shown in FIG. 2, a silo generally has a storage tank 1 for storing an object provided with an input port 11 through which the stored material 2 is input at the top, and a discharge port for discharging the stored material 2. An outlet 12 is provided on the bottom surface. Then, on the bottom surface of the storage tank, a scraping device 3 having a rotatable blade 31 that scrapes the stored material and sends it to the discharge port 12 is arranged, and the stored material 2 sent to the discharge port 12 is The screw-type discharge device 4 is configured to discharge to the outside through a chute 12a continuous from the discharge port 12. Further, when the quantity of the stored substance 2 in the storage tank 1 is detected by the ultrasonic sensor 65 and the storage level is larger than the level value set in advance by the transmitter 6151 attached to the ultrasonic sensor 65, the stored substance is stored. 2 is stopped, and when the storage level is lower than a preset level value, the discharge of the storage 2 is stopped.
[0003]
In such a silo, the scraping device 3 is generally operated at all times while the discharge device 4 is in operation regardless of the amount of stored material, that is, the storage level. Therefore, the design torque of the blade driving device was set based on the storage pressure applied to the blade portion 31 when the storage tank 1 is full, and the power consumption has reached a considerable amount. Further, when the storage tank 1 is empty, when the storage is introduced, the blade 31 of the scraping device 3 may be damaged due to the collision of the storage falling from the top.
[0004]
[Problems to be solved by the invention]
The present invention has been made to solve the above-described problems, and provides a silo operation method capable of reducing the power consumption of the scraping device, and also breaks the blade portion of the scraping device. Provide a silo driving method that can prevent.
[0005]
[Means for Solving the Problems]
The above problem is the silo operation method according to the first aspect of the present invention, in which a scraping device having a rotatable blade portion is disposed on the bottom surface of the storage tank in order to discharge the stored material from the discharge port on the bottom surface. The silo operation method is characterized in that the scraping device is operated when the storage level of the stored material is lower than a predetermined value, and the operation is stopped when the stored level is higher than the predetermined value. Can do.
[0006]
In addition, the above problem is the silo operation method according to the second invention, in which a scraping device having a rotatable blade portion is disposed on the bottom surface of the storage tank in order to discharge the stored matter from the discharge port on the bottom surface. When the storage level of the storage is greater than a predetermined value, the storage is introduced from the storage inlet provided at the uppermost portion of the storage tank, and when the storage level is lower than the predetermined value, the side surface of the storage tank This can be solved by a silo operation method characterized in that the storage material is input from the second storage material input port provided in the storage device.
[0007]
Furthermore, the present invention is embodied as a silo operation method using the first invention and the second invention together. In these cases, it is preferable to use an ultrasonic sensor, a pressure sensor, or a weight sensor as the storage level detection means for the stored material.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment according to the silo operation method of the present invention will be described with reference to FIG.
(First invention)
The basic structure of the silo for carrying out the silo operation method of the present invention is the same as described above. That is, as shown in FIG. 1, the storage tank 1 is provided with an inlet 11 for introducing an object, for example, sludge, pumped by the pump p at the top, and an outlet for discharging the storage 2. 12 is provided on the bottom surface, and on the bottom surface of the storage tank 1, a scraping device 3 having a rotatable blade 31 that scrapes the stored material 2 and sends it to the discharge port 12 is disposed. The stored storage 2 is configured to be discharged to the outside by the screw-type discharge device 4 through the chute 12 a continuous from the discharge port 12.
[0009]
The present invention is an operation method of such a silo, which is characterized by a storage level detection means, for example, an ultrasonic sensor, that displays a storage level indicating the quantity of the storage 2 in the storage tank 1 in height. 5, when the storage level is smaller than a preset operation start level value, an operation start signal is transmitted from the transmitter 51 attached to the ultrasonic sensor 5 to the drive unit 32 of the raking device 3; When the scraping device 3 is operated and the storage level is larger than the preset operation stop level value, the operation of the scraping device 3 is similarly stopped.
[0010]
The present invention has been completed by paying attention to the phenomenon that when the storage 2 has a certain storage level, usually 2 to 3 m or more, it is sent to the discharge port 12 by its own weight. During the storage level sent to the discharge port 12, the operation of the scraping device 3 is stopped, so that power consumption can be saved and the set torque of the blade driving device can be reduced by 10 to 30%. The advantage is that it can be designed.
[0011]
Next, the operation stop level or the operation start level will be described.
The storage level that regulates this operation means the minimum height when the storage 2 can flow through the discharge chute part by its own weight and reach the screw-type discharge device 4, and should be estimated by the following procedure. Is possible.
First, the storage level H 0 [m] at which the weight of the storage and the chute pressure loss P [MPa] are balanced is obtained by the following equation 1 with the storage density being ρ [Kg / m 3 ].
(Equation 1) H 0 = P / 9.8 × 10 - 6 · ρ
[0012]
Here, the chute pressure loss P [MPa] can be obtained from the chute height h [m] (see FIG. 1), the shear stress τ [MPa], and the discharge port diameter D “m” by the following equation 2. .
(Formula 2) P = (4τ × h / D) × 10 −4 [MPa]
The discharge port diameter D “m” indicates the diameter of a circular hole corresponding to the opening area when the discharge port is rectangular. Further, when the shear stress τ [MPa] is the discharge amount per hour Q [m 3 / hour] of the screw type discharge device 4, the shear rate v [1 / sec] obtained by the expression 3 and the moisture content of the stored matter Etc.
(Expression 3) v = 8 · Q / π · D 3 × 3600 [1 / sec]
[0013]
The storage level H 0 [m] thus determined means that if the storage level is higher than this, the storage part flows into the discharge port under its own weight, and if it is lower, it does not flow in under its own weight. However, the actual machine assumes a storage level H [m] that takes into account the safety factor, and sets the operation stop level value and the operation start level value above the theoretical storage level H [m] as a sequence control value. That's fine. Of course, this set value is readjusted by trial operation of the actual machine. In many cases where sludge is stored, if the operation stop level value is set to 5 to 6 m and the operation start level value is set to 3 to 4 m, the object can be achieved.
[0014]
In the above implementation, as the storage level detection means of the storage, the ultrasonic wave reflected from the upper surface of the storage by the ultrasonic sensor 5 disposed in the upper part of the storage tank 1 is measured and the distance to the upper surface of the storage However, as a storage level detection means, the pressure at the bottom of the storage tank is detected and the storage level is estimated so as to estimate the storage level. A pressure sensor may be arranged, or a weight sensor may be arranged and used at the bottom of the storage tank so as to estimate the storage level by detecting the weight of the storage.
[0015]
Further, when the scraping device 3 is stopped when the storage level exceeds the operation stop level, the storage 2 may not be smoothly discharged when the blade portion 31 is positioned so as to cover the discharge port 12. Therefore, in order to avoid such a situation, it is preferable to detect the rotational position of the blade portion 31 and adjust the stop position so that it does not overlap the discharge port 12. For example, a convex part (not shown) acting on the proximity switch is provided on the drive shaft outside the tank of the blade part 31, and a proximity switch (not shown) is provided on the tank side at a position where the blade part 31 is to be stopped. Then, after receiving the signal below the operation stop level, the scraping device 3 may be stopped when the proximity switch is activated.
[0016]
(Second invention)
Next, an embodiment according to the second aspect of the present invention will be described with reference to FIG.
In the silo having the same basic structure as described above, the second invention is characterized in that the second reservoir input port 13 is provided on the side surface of the storage tank 1 in addition to the reservoir input port 11 provided at the top. If the ultrasonic sensor 5 detects that the storage level of the storage 2 is greater than a predetermined value, the connection is connected to each of the inlets 11 and 13 by a control signal transmitted from the transmitter 51. When the storage level is lower than a predetermined value by opening and closing the electric valves 11a and 13a provided in the stored object piping, so that the storage material is input from the storage material input port 11, the same detection is performed. The means is that the input port is switched so that the stored material is input from the second stored material input port 13 by means.
[0017]
In this case, the valve switching level value serving as a reference for switching the charging port is that the blade portion 31 of the scraping device 3 is buried in the storage 2 and the storage material such as sludge is input from the uppermost charging port 11. However, it is sufficient to set the level so that the vane portion 31 is not damaged. Usually, the predetermined value may be set to 2 to 3 m.
[0018]
Thus, according to the second aspect of the present invention, since the blade 31 of the scraping device 3 is exposed, the blade 11 is not damaged at the time of charging such as sludge from the uppermost inlet 11. It can be prevented. Moreover, since the 2nd inlet 13 provided in the position lower than the inlet 11 is used, the advantage that the pumping distance of a stored material is shortened and the power consumption of the pumping pump p can also be reduced is acquired.
[0019]
Needless to say, the installation height of the second insertion port 13 may be set at a position where the blade portion 31 is prevented from being damaged by the storage material introduced from the second insertion port 13. Absent. Also in the second aspect of the invention, an ultrasonic sensor, a pressure sensor, or a weight sensor is preferably used as the storage level detection means for the stored matter.
[0020]
Furthermore, the present invention uses the operation method of the silo that includes the operation control of the scraping device of the first invention described above and the inlet switching control of the second invention in combination with the ultrasonic sensor 5 and implements it. And each of the advantages described above can be enjoyed. The ultrasonic sensor 5 and the transmitter 51 in the first and second inventions are the same as the ultrasonic sensor 6 and transmitter 61 (see FIG. 2) for controlling the introduction and discharge of the reservoir described above. In this case, there is an advantage that it is not necessary to attach a dedicated device.
[0021]
【The invention's effect】
Since the silo operation method of the present invention is configured as described above, according to the first invention, the power consumption of the scraping device can be reduced, and the cost can be reduced by making the scraping device compact. Become. Moreover, according to 2nd invention, there exists an outstanding effect that the damage of the blade | wing part of a scraping apparatus can be prevented, and the power consumption of a pressure pump can be reduced. Therefore, the present invention has an extremely large practical value as a silo operation method that solves the conventional problems.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view of a main part of a silo for explaining an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of a main part of a silo for explaining a conventional silo.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Reservoir, 11 Input port, 12 Discharge port, 12a Chute, 2 Storage material, 3 Scraping device, 31 Blade part, 32 Drive part, 4 Screw type discharge device, 5 Ultrasonic sensor, 51 Transmitter part, p Pressure pump .

Claims (4)

貯留物を底面の排出口から排出するために、貯留槽の底面上に、回転可能な羽根部を有する掻き寄せ装置を配置したサイロの運転方法であって、貯留物の貯留レベルが所定値より小の場合に掻き寄せ装置を運転し、貯留レベルが所定値より大の場合に運転を中止することを特徴とするサイロの運転方法。A silo operation method in which a scraping device having a rotatable blade portion is disposed on the bottom surface of the storage tank in order to discharge the stored material from the discharge port on the bottom surface. A silo driving method characterized in that the scraping device is operated when it is small, and the driving is stopped when the storage level is higher than a predetermined value. 貯留物を底面の排出口から排出するために、貯留槽の底面上に、回転可能な羽根部を有する掻き寄せ装置を配置したサイロの運転方法であって、貯留物の貯留レベルが所定値より大の場合に貯留槽の最上部に設けた貯留物投入口から貯留物を投入し、貯留レベルが所定値より小の場合に貯留槽の側面に設けた貯留物投入口から貯留物を投入することを特徴とするサイロの運転方法。A silo operation method in which a scraping device having a rotatable blade portion is disposed on the bottom surface of the storage tank in order to discharge the stored material from the discharge port on the bottom surface. In the case of a large tank, the reservoir is introduced from the reservoir inlet provided at the top of the reservoir, and when the storage level is lower than the predetermined value, the reservoir is introduced from the reservoir inlet provided on the side surface of the reservoir. A silo driving method characterized by the above. 請求項１記載の掻き寄せ装置および請求項２記載の貯留物投入口に係るサイロの運転方法を併用することを特徴とするサイロの運転方法。A silo operation method comprising using the scraping device according to claim 1 and the silo operation method according to claim 2 in combination. 貯留物の貯留レベル検知手段が、超音波センサまたは圧力センサまたは重量センサである請求項１に記載のサイロの運転方法。The silo operation method according to claim 1, wherein the storage level detection means of the storage is an ultrasonic sensor, a pressure sensor, or a weight sensor.
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CN101886713A (en) * 2010-07-12 2010-11-17 厦门市易洁卫浴有限公司 Faucet capable of controlling opening and closing by ultrasonic wave and opening and closing method thereof
JP2012121709A (en) * 2010-12-10 2012-06-28 Hitachi Zosen Corp Powder quantitative feeder
JP2013154892A (en) * 2012-01-27 2013-08-15 Kubota Corp Silo, and operating method of the same
KR101611795B1 (en) * 2015-05-06 2016-04-11 비디아이 주식회사 Coal silo having fire extinguishing system
CN105775447A (en) * 2016-04-04 2016-07-20 合肥博雷电子信息技术有限公司 Automatic detection and intelligent blockage clearing device
CN106919127A (en) * 2017-01-24 2017-07-04 本钢板材股份有限公司 A kind of level of filler material detection method based on software virtual technique

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JP5968629B2 (en) * 2012-01-25 2016-08-10 株式会社クボタ Silo and silo operation method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101886713A (en) * 2010-07-12 2010-11-17 厦门市易洁卫浴有限公司 Faucet capable of controlling opening and closing by ultrasonic wave and opening and closing method thereof
JP2012121709A (en) * 2010-12-10 2012-06-28 Hitachi Zosen Corp Powder quantitative feeder
JP2013154892A (en) * 2012-01-27 2013-08-15 Kubota Corp Silo, and operating method of the same
KR101611795B1 (en) * 2015-05-06 2016-04-11 비디아이 주식회사 Coal silo having fire extinguishing system
CN105775447A (en) * 2016-04-04 2016-07-20 合肥博雷电子信息技术有限公司 Automatic detection and intelligent blockage clearing device
CN105775447B (en) * 2016-04-04 2018-03-16 合肥博雷电子信息技术有限公司 A kind of automatic detection intelligence blockage-clearing device
CN106919127A (en) * 2017-01-24 2017-07-04 本钢板材股份有限公司 A kind of level of filler material detection method based on software virtual technique

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