JPH05286574A - Method and device of inventory control in ore storage tank - Google Patents
Method and device of inventory control in ore storage tankInfo
- Publication number
- JPH05286574A JPH05286574A JP4119905A JP11990592A JPH05286574A JP H05286574 A JPH05286574 A JP H05286574A JP 4119905 A JP4119905 A JP 4119905A JP 11990592 A JP11990592 A JP 11990592A JP H05286574 A JPH05286574 A JP H05286574A
- Authority
- JP
- Japan
- Prior art keywords
- storage tank
- ore
- ore storage
- compressed air
- side wall
- 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.)
- Granted
Links
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は貯鉱槽における在庫管理
方法およびその装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inventory management method and apparatus for a storage tank.
【０００２】[0002]
【従来の技術】焼結鉱を製造する焼結工場ではその原料
となる鉱石や石灰石等を一時的に貯鉱するために多数の
貯鉱槽を有している。この貯鉱槽は性状の異なる焼結原
料の種類毎に用意されており、貯鉱槽への鉱石等の受入
れや払出しに際してはその量はもとより貯鉱槽内におけ
る堆積状態も管理しなければならない。2. Description of the Related Art A sinter plant for producing sinter has a large number of storage tanks for temporarily storing ore, limestone, etc., which are raw materials for the sinter. This ore storage tank is prepared for each type of sintering raw material with different properties, and when receiving or delivering ore etc. to or from the ore storage tank, it is necessary to manage not only the amount but also the state of accumulation in the ore storage tank. ..
【０００３】ところが、鉱石等の性状によって貯鉱槽内
の出口近傍で鉱石等が貯鉱槽内壁に付着して静止したま
ま残留し続けるという問題があり、鉱石等の供給能力を
低下させるばかりでなく、新しく貯鉱槽へ装入した鉱石
等が先に払出されたり、槽内に残留し続けている鉱石と
新しく装入した鉱石とが貯鉱槽内で混合するようなこと
があると、焼結配合原料の品質を低下させるという問題
も生じる。すなわち図１は後に説明する本発明を示す図
であるが、この図により上記問題を説明すれば貯鉱槽１
１に満槽位置１３まで装入した鉱石等を払出すと、格別
の対策を講じない場合、順次１４から１５へと装入物堆
積形状が変化し、中央部が著しく凹むようになる。この
ため、貯鉱槽内においてこのような問題が生じないよう
に従来から以下に述べるような対策がとられていた。However, there is a problem that the ore or the like adheres to the inner wall of the ore storage tank and remains stationary in the vicinity of the outlet in the ore storage tank due to the nature of the ore or the like, which not only reduces the supply capacity of the ore and the like. If there is a case where the ore etc. newly charged into the storage tank is discharged first, or the ore remaining in the tank and the newly charged ore are mixed in the storage tank, There is also a problem of deteriorating the quality of the sintering compounding raw material. That is, FIG. 1 is a diagram showing the present invention which will be described later. If the above problem is explained by this diagram,
When the ore or the like charged to 1 is filled up to the full tank position 13, unless the special measure is taken, the charge accumulation shape is sequentially changed from 14 to 15, and the central portion becomes significantly recessed. Therefore, in order to prevent such problems from occurring in the storage tank, the following measures have been taken conventionally.
【０００４】（１）バイブレーターの設置 貯鉱槽の下部外側壁にバイブレーターを設けて間歇的に
作動させ、振動を与えることによって貯鉱槽内に残留し
た鉱石等を崩す。(1) Installation of vibrator A vibrator is provided on the lower outer wall of the ore storage tank to operate intermittently and vibrate to destroy the ore and the like remaining in the ore storage tank.
【０００５】（２）貯鉱槽内面へのセラミック張り付け 鉱石等が残留し易い貯鉱槽下部内周面へセラミックを張
り付けて鉱石等の付着を防止する。(2) Attaching ceramics to the inner surface of the ore storage tank Ceramics are attached to the inner peripheral surface of the lower portion of the ore storage tank, where ores and the like tend to remain, to prevent adhesion of ore and the like.
【０００６】（３）貯鉱槽内への注水 貯鉱槽内周方向に複数の注水配管を設け、この注水配管
から注水することによって残留鉱石等を崩す。(3) Water injection into the ore storage tank A plurality of water injection pipes are provided in the inner circumferential direction of the ore storage tank, and residual ores and the like are destroyed by injecting water from the water injection pipes.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら前記従来
技術には以下に述べるような問題点がある。すなわちバ
イブレーターを間歇的に作動させて残留鉱石等を崩す方
法では、貯鉱槽自体に振動を与えることになるので貯鉱
槽周壁に振動によるクラックを発生させるという問題が
あるほか、バイブレーターを間歇的に作動させても貯鉱
槽が満杯の時など、必要のない時にまで振動を与えるこ
とがあり、無駄がある。However, the above-mentioned prior art has the following problems. In other words, the method of intermittently operating the vibrator to collapse the residual ore, etc. causes vibration to the storage tank itself, which causes a problem that cracks are generated on the peripheral wall of the storage tank due to vibration, and the vibrator is intermittently used. Even if it is activated, the vibration may be applied to the storage tank when it is not needed, such as when the storage tank is full.
【０００８】また貯鉱槽下部内周面にセラミックを張り
付ける方法では、鉱石等の含有水分や粒度等、その銘柄
の特性によって効果がないものがあり、また一旦セラミ
ックが摩耗し始めるとその部分に鉱石等が残留し易くな
り、メンテナンスに要する時間や費用が多大である。[0008] Further, in the method of sticking the ceramic to the inner peripheral surface of the lower part of the ore storage tank, there are some which are not effective depending on the characteristics of the brand such as the water content and particle size of the ore, etc. Moreover, the ore and the like tend to remain, and the time and cost required for maintenance are great.
【０００９】また貯鉱槽内への注水によって残留鉱石等
を崩す方法による場合は、多量の水を必要とするばかり
ではなく、鉱石等の含有水分に変化を与えることにな
り、焼結用配合原料の水分含有量の管理が難しい。Further, when the method of destroying the residual ore by pouring water into the ore storage tank is used, not only a large amount of water is required but also the water content of the ore or the like is changed, so that the sintering compound is mixed. It is difficult to control the water content of raw materials.
【００１０】[0010]
【課題を解決するための手段】本発明は前記従来技術の
問題点を有利に解決するためになされたものであって、
貯鉱槽の上方から貯鉱槽内における鉱石等の在庫レベル
を該貯鉱槽の中央部と側壁部とで測定すると共にその測
定値の差を求め、この差が予め定めておいた基準値以上
になったときに貯鉱槽の側壁から貯鉱槽内へ圧縮空気を
噴出させて貯鉱槽内で凹状に堆積している鉱石等を崩す
ことを特徴とする貯鉱槽における在庫管理方法である。SUMMARY OF THE INVENTION The present invention has been made in order to advantageously solve the above-mentioned problems of the prior art.
The stock level of ore, etc. in the storage tank is measured from above the storage tank at the central portion and the side wall portion of the storage tank, and the difference between the measured values is obtained, and this difference is a predetermined reference value. When the above occurs, compressed air is ejected from the side wall of the storage tank into the storage tank to destroy the ores and the like that have accumulated in a concave shape in the storage tank. Is.
【００１１】また貯鉱槽の中央部と側壁部の上方にそれ
ぞれ下向きに設置した超音波レベル計と、空気噴出ノズ
ルを貯鉱槽内へのぞませ貯鉱槽の外側壁に上下方向に段
状に設置した複数個の圧縮空気貯蔵器と、該中央部及び
側壁部の上方に設置した超音波レベル計によるレベル測
定値およびその差ならびに予め定めておく基準値とか
ら、該圧縮空気貯蔵器の空気噴出ノズルから圧縮空気を
噴出させるタイミングを判断すると共に作動させるべき
圧縮空気貯蔵器を選定して圧縮空気噴出の作動指令を発
する機能を有する制御装置とから成ることを特徴とする
貯鉱槽における在庫管理装置である。Further, ultrasonic level meters installed downward at the center and side walls of the ore storage tank and air jet nozzles are directed into the ore storage tank, and stepped vertically on the outer wall of the ore storage tank. From the plurality of compressed air reservoirs installed in a shape, the level measurement values by the ultrasonic level meter installed above the central portion and the side wall portion, the difference between them, and a predetermined reference value, the compressed air reservoir , A control device having a function of determining the timing of ejecting compressed air from the air ejection nozzle of the device and selecting a compressed air reservoir to be operated and issuing a command to operate the compressed air ejection. Is an inventory management device.
【００１２】[0012]
【作用】本発明においては、貯鉱槽の上方に超音波レベ
ル計等を設けて貯鉱槽内の鉱石等の在庫量を貯鉱槽の中
央部と側壁部近傍の半径方向２箇所で測定して、その測
定値の差を求めることにより、貯鉱槽内に堆積している
鉱石等の堆積形状を判断する。特に貯鉱槽から鉱石等を
払い出す際、中央部が窪んで凹状となるので前記測定値
の差からその窪みの程度を知り、予め定めた規準値より
もその窪みの値が大となったときこれを解消する。この
ために貯鉱槽の外側壁に段状に設けた圧縮空気貯蔵器か
ら圧縮空気を槽内へ噴射して貯鉱槽内壁面の鉱石等を崩
して貯鉱槽中央部の窪みを解消する。In the present invention, an ultrasonic level meter or the like is provided above the ore storage tank to measure the stock amount of ore or the like in the ore storage tank at two locations in the radial direction near the center and sidewalls of the ore storage tank. Then, the deposition shape of the ore or the like deposited in the storage tank is determined by obtaining the difference between the measured values. Especially when paying out ore etc. from the storage tank, the central part becomes concave and becomes concave, so the degree of the hollow is known from the difference of the above measured values, and the value of the hollow becomes larger than the predetermined standard value. Sometimes this is resolved. For this reason, compressed air is jetted into the tank from a compressed air reservoir provided in a step on the outer wall of the ore storage tank to break down ores and the like on the inner wall surface of the ore storage tank and eliminate the depression in the center of the ore storage tank. ..
【００１３】本発明の装置に係わる超音波レベル計は、
例えば特公昭５２−７７３５号公報に開示されたものを
利用できる。また、貯鉱槽の側壁部上方に設ける超音波
レベル計は貯鉱槽の周方向に複数箇所に設けるのは有効
で、その際、圧縮空気貯蔵器も同様に複数箇所に設ける
のが望ましい。超音波レベル計を設ける位置は貯鉱槽の
中央部にあっては該槽の中心点を規準として半径の１０
％以内の位置、側壁部にあっては貯鉱槽の中心点から半
径の３／４だけ隔った点を規準としてその点から半径の
±１０％以内とするのが望ましい。The ultrasonic level meter according to the device of the present invention is
For example, the one disclosed in Japanese Patent Publication No. 52-7735 can be used. Further, it is effective to provide the ultrasonic level meters provided above the side wall of the storage tank at a plurality of locations in the circumferential direction of the storage tank, and at that time, it is desirable to provide the compressed air reservoirs at a plurality of locations as well. The position of the ultrasonic level meter is at the center of the storage tank, and the radius is 10
It is desirable to set the position within ±%, and the side wall part within ± 10% of the radius from the point, which is separated from the center point of the storage tank by 3/4 of the radius.
【００１４】また本発明の装置において圧縮空気を噴出
するノズルを圧縮空気貯蔵器を介して設ける理由は、空
気供給配管に直接ノズルを設けたのでは一度に大量の空
気を噴出した場合に空気の補給が追いつかず、圧力降下
が著しくなるためである。このような場合の圧力降下を
防止する手段としては各ノズルの近傍に減圧弁を設け、
そこ迄は高圧で空気を供給することもできる。しかし高
圧ガスに対する法規上の規制や減圧弁等の保守の問題も
あり、圧縮空気貯蔵器を用いるのがより好ましい。In the apparatus of the present invention, the reason why the nozzle for ejecting compressed air is provided via the compressed air reservoir is that if a nozzle is provided directly in the air supply pipe, a large amount of air is ejected at one time. This is because replenishment cannot keep up and pressure drop becomes significant. As a means to prevent pressure drop in such a case, a pressure reducing valve is provided near each nozzle,
Up to that point, air can be supplied at high pressure. However, it is more preferable to use the compressed air storage device because there are legal restrictions on high-pressure gas and maintenance problems such as pressure reducing valves.
【００１５】[0015]
【実施例】以下、図面に基づいて本発明を説明する。図
１は本発明を例示する模式図であって、高さ約１１ｍ、
上部における径が８ｍの焼結原料用貯鉱槽１１の上方に
超音波レベル計１及び２を設けた。超音波レベル計１は
貯鉱槽１１の径方向中央部に、またレベル計２は貯鉱槽
１１の側壁から１ｍだけ中央に寄った位置にそれぞれ下
向きに設けた。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a schematic view illustrating the present invention, which has a height of about 11 m,
Ultrasonic wave level meters 1 and 2 were provided above the sintering raw material storage tank 11 having a diameter of 8 m in the upper portion. The ultrasonic level meter 1 was installed in the central portion of the storage tank 11 in the radial direction, and the level meter 2 was installed downward at a position 1 m away from the side wall of the storage tank 11.
【００１６】貯鉱槽１１の左右両側壁には容積１３０ｌ
の圧縮空気貯蔵器（商品名エアーブラスター）を段状
に、左側には符号３、５、７右側には符号４、６、８と
それぞれ３段に設けた。それぞれのエアーブラスター３
〜８にはコンプレッサー１０から圧縮空気を補給するよ
うにしてある。The storage tank 11 has a volume of 130 l on both left and right side walls.
The compressed air storage device (trade name: air blaster) of No. 3 was provided in a stepped manner, and the left side was provided with reference numerals 3, 5, and 7, and the right side was provided with reference numerals 4, 6, and 8 in three stages. Each air blaster 3
Compressed air is replenished from the compressor 10 to ~ 8.
【００１７】１２は制御装置で、超音波レベル計１、２
によるレベル測定結果に基づいて演算を行い、エアーブ
ラスター３〜８のうち必要箇所に圧縮空気噴出の作動指
令を発する機能を有する。各エアーブラスター３〜８は
貯鉱槽１１内に斜下向きに空気噴出ノズル３Ａ〜８Ａを
有しており、該作動指令を受けたエアーブラスターから
は、その空気噴出ノズルから圧縮空気を噴出して貯鉱槽
内周部に付着、残留している鉱石を崩す。図中９はエア
ー配管である。Reference numeral 12 is a control device, which is an ultrasonic level meter 1, 2
Has a function of performing an operation on the basis of the level measurement result and issuing an operation command to inject compressed air to a necessary portion of the air blasters 3 to 8. Each of the air blasters 3 to 8 has obliquely downward air jet nozzles 3A to 8A inside the storage tank 11, and the air blaster that receives the operation command jets compressed air from the air jet nozzles. The ore that adheres to the inner circumference of the storage tank and remains is destroyed. In the figure, 9 is an air pipe.
【００１８】本発明に係わる制御装置１２では以下のよ
うな演算を行う （１）超音波レベル計１と２で測定した測定値ａとｂの
差ｃの値（ａ−ｂ）を演算する。 （２）該差ｃと予め定めておく基準値ｄとを比較し、差
ｃが基準値ｄ以上であるか否かを判断する。 （３）測定値ｂがそれぞれのエアーブラスター３〜８の
設置位置までの距離より大か小かを比較する。 （４）上記（１）〜（３）により作動すべきエアーブラ
スターを選定する。 なお、制御装置にはシーケンサーを設けてエアーブラス
ターの作動順序を制御するようにしてある。The controller 12 according to the present invention performs the following calculations (1) Calculates the value (ab) of the difference c between the measured values a and b measured by the ultrasonic level meters 1 and 2. (2) The difference c is compared with a predetermined reference value d to determine whether the difference c is greater than or equal to the reference value d. (3) Compare whether the measured value b is larger or smaller than the distance to the installation position of each air blaster 3-8. (4) Select the air blaster to be operated according to the above (1) to (3). A sequencer is provided in the control device to control the operation sequence of the air blaster.
【００１９】図２は本発明の実施例を示す断面図で、貯
鉱槽内の鉱石堆積形状を経時的に示したものである。上
方部の直径が８ｍ、高さ約１１ｍの鉱石槽の上端面にお
いて、該槽の中央部に超音波レベル計１を、左側壁より
１ｍだけ中央に寄った位置に超音波レベル計２を設け
た。またエアーブラスター３、４は該槽上端面より４．
５ｍ下位の側壁に、エアーブラスター５、６は同様に上
端面から６．５ｍ下位に、エアーブラスター７、８は９
ｍ下位にそれぞれ設置して、超音波レベル計１、２によ
るレベル測定値に基づき本発明を実施した。その結果を
同図（ａ）から（ｄ）へ経時的に示した。なお、このと
きの基準値ｄは３ｍとした。FIG. 2 is a cross-sectional view showing an embodiment of the present invention, showing the ore deposit shape in the storage tank over time. An ultrasonic level meter 1 is provided at the center of the ore tank with an upper diameter of 8 m and a height of about 11 m, and an ultrasonic level meter 2 is provided at a position 1 m closer to the center than the left side wall. It was Further, the air blasters 3 and 4 are 4.
The air blasters 5 and 6 are also 6.5 m lower from the upper end surface, and the air blasters 7 and 8 are 9 on the side wall 5 m lower.
The present invention was carried out on the basis of the level measurement values obtained by the ultrasonic level meters 1 and 2 respectively installed at m lower positions. The results are shown from time (a) to time (d) in the same figure. The reference value d at this time was 3 m.
【００２０】図２では、満槽時の鉱石の堆積形状を２１
で示すと共にエアーブラスターを作動させる前の堆積形
状を２２（ＡないしＤ）で、エアーブラスター作動後を
２３（ＡないしＤ）で示し、そのときの時刻を数字で示
した。In FIG. 2, the deposit shape of the ore when the tank is full is 21
In addition, the deposition shape before the air blaster is operated is indicated by 22 (A to D), and after the air blaster is activated by 23 (A to D), the time at that time is indicated by a numeral.
【００２１】図２（ａ）では、満槽時には凸状に堆積し
ていた（２１Ａ）鉱石が、下部から排鉱するにつれ凹状
となり（２２Ａ）、９時５６分には超音波レベル計によ
る測定値ａとｂの差ｃが３ｍに達した。このためエアー
ブラスター３、４、５、６を作動させて圧縮空気を噴出
させた。その結果１０時１分には２３Ａの曲線で示すよ
うに中央部の窪みが約１．５ｍ減少した。In FIG. 2 (a), the ore (21A), which had been convexly accumulated when the tank was full, became concave (22A) as it was discharged from the bottom, and was measured by an ultrasonic level meter at 9:56. The difference c between the values a and b reached 3 m. Therefore, the air blasters 3, 4, 5, 6 were operated to eject the compressed air. As a result, at 10:01, the depression in the central portion was reduced by about 1.5 m as shown by the curve of 23A.
【００２２】その後１０時４５分には図２（ｂ）のよう
に、中央部に顕著な窪みが現れ（２２Ｂ）、前記差ｃも
３ｍを超えた。そこでエアーブラスター３、４、５、６
を作動させたところ３分後の１０時４８分には中央部の
窪みが約１．５ｍ減少した（２３Ｂ）。また、１１時６
分にも中央部に著しい窪みが現れたので（２２Ｃ）、同
様にエアーブラスター３、４、５、６を作動させて該窪
みの改善を行った（２３Ｃ）。更に、１２時３８分にも
中央部に窪みが現れ（２２Ｄ）、差ｃも３ｍを超えた。
そこでエアーブラスター５、６、７、８を作動させてそ
の窪みを解消させた（２３Ｄ）、このとき超音波レベル
計２による測定値がエアーブラスター３、４の位置より
下位となったのでエアーブラスター３、４は作動させな
かった。At 10:45 after that, as shown in FIG. 2 (b), a remarkable depression appeared in the central portion (22B), and the difference c exceeded 3 m. So Air Blaster 3, 4, 5, 6
When was operated, the hollow in the central part was reduced by about 1.5 m at 10:48 after 3 minutes (23B). Also, 11:06
Since a marked depression appeared in the central portion (22C), the air blasters 3, 4, 5 and 6 were similarly activated to improve the depression (23C). Furthermore, at 12:38, a dent appeared in the center (22D), and the difference c exceeded 3 m.
Therefore, the air blasters 5, 6, 7, and 8 were operated to eliminate the depression (23D). At this time, the value measured by the ultrasonic level meter 2 was lower than the position of the air blasters 3 and 4, so the air blaster was Three and four did not work.
【００２３】以上のように、本発明によれば貯鉱槽内の
鉱石堆積形状を把握して中央部に著しい窪みが発生した
際にエアーブラスターを作動させて貯鉱槽内壁部の鉱石
を崩すことにより窪みを埋めるように解消することが出
来ることを確認した。As described above, according to the present invention, the shape of the ore deposit in the ore storage tank is grasped, and when a significant depression is generated in the central portion, the air blaster is operated to destroy the ore on the inner wall of the ore storage tank. By doing so, it was confirmed that it could be solved by filling the dent.
【００２４】[0024]
【発明の効果】以上述べたように本発明によれば貯鉱槽
内の鉱石等の粉粒物を貯鉱槽下部から払出す際、該貯鉱
槽内壁、特に下部内周壁に鉱石等が付着、堆積し、中央
部に顕著な窪みが生じる現象を解消させることが可能に
なり、鉱石等の供給能力の低下を防止し、貯鉱槽内にお
いて異種鉱石が混合するという問題も解消できる。As described above, according to the present invention, when the ore or other powder or granular material in the storage tank is discharged from the lower portion of the storage tank, the ore or the like is deposited on the inner wall of the storage tank, particularly the lower inner peripheral wall. It becomes possible to eliminate the phenomenon of depositing and depositing and producing a noticeable depression in the central portion, preventing a decrease in the supply capacity of ore, etc., and solving the problem that different ores are mixed in the storage tank.
【図１】本発明を例示する模式図FIG. 1 is a schematic diagram illustrating the present invention.
【図２】本発明の実施例における装入物堆積形状を示す
断面図で（ａ）〜（ｄ）は経時変化FIG. 2 is a cross-sectional view showing a charge deposition shape in an example of the present invention, and
１、２ 超音波レベル計 ３〜８ 圧縮空気貯蔵器 ３Ａ〜８Ａ 空気噴出ノズル １０ コンプレッサー １１ 貯鉱槽 １２ 制御装置 1, 2 Ultrasonic Level Meter 3-8 Compressed Air Reservoir 3A-8A Air Injection Nozzle 10 Compressor 11 Storage Tank 12 Controller
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松永 伸一 千葉県君津市君津１番地 新日本製鐵株式 会社君津製鐵所内 (72)発明者 斉藤 正広 千葉県君津市君津１番地 新日本製鐵株式 会社君津製鐵所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinichi Matsunaga 1 Kimitsu, Kimitsu, Chiba Prefecture Nippon Steel Corporation Stock (72) Inventor Masahiro Saito, 1 Kimitsu, Chiba Shin Nippon Steel Co., Ltd. Company Kimitsu Works
Claims (2)
等の在庫レベルを該貯鉱槽の中央部と側壁部とで測定す
ると共にその測定値の差を求め、この差が予め定めてお
いた基準値以上になったときに貯鉱槽の側壁から貯鉱槽
内へ圧縮空気を噴出させて貯鉱槽内で凹状に堆積してい
る鉱石等を崩すことを特徴とする貯鉱槽における在庫管
理方法。1. An inventory level of ore or the like in the storage tank from above the storage tank is measured at a central portion and a side wall portion of the storage tank, and a difference between the measured values is obtained, and the difference is predetermined. A storage ore characterized by ejecting compressed air from the side wall of the storage tank to the inside of the storage tank when it exceeds a preset standard value to destroy the ore and the like accumulated in a concave shape in the storage tank. Inventory management method in tank.
れ下向きに設置した超音波レベル計と、空気噴出ノズル
を貯鉱槽内へのぞませ貯鉱槽の外側壁に上下方向に段状
に設置した複数個の圧縮空気貯蔵器と、該中央部及び側
壁部の上方に設置した超音波レベル計によるレベル測定
値およびその差ならびに予め定めておく基準値とから、
該圧縮空気貯蔵器の空気噴出ノズルから圧縮空気を噴出
させるタイミングを判断すると共に作動させるべき圧縮
空気貯蔵器を選定して圧縮空気噴出の作動指令を発する
制御装置とから成ることを特徴とする貯鉱槽における在
庫管理装置。2. An ultrasonic level meter installed downwardly above the central portion and side wall portion of the storage tank, and an air jet nozzle is looked into the storage tank, and the outer wall of the storage tank is vertically moved. From a plurality of compressed air reservoirs that are installed in a stepwise manner, and the level measurement value and the difference between the level measurement by the ultrasonic level meter installed above the central portion and the side wall portion, and a predetermined reference value,
A storage device, comprising: a control device that determines a timing at which compressed air is ejected from an air ejection nozzle of the compressed air storage device, selects a compressed air storage device to be operated, and issues a compressed air ejection operation command. Inventory management equipment in ore tanks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4119905A JP2904643B2 (en) | 1992-04-15 | 1992-04-15 | Inventory management method and device in storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4119905A JP2904643B2 (en) | 1992-04-15 | 1992-04-15 | Inventory management method and device in storage tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05286574A true JPH05286574A (en) | 1993-11-02 |
| JP2904643B2 JP2904643B2 (en) | 1999-06-14 |
Family
ID=14773112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4119905A Expired - Lifetime JP2904643B2 (en) | 1992-04-15 | 1992-04-15 | Inventory management method and device in storage tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2904643B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011207500A (en) * | 2010-03-30 | 2011-10-20 | Nippon Paper Industries Co Ltd | Auxiliary device for filling storage item into storage container |
| JP2016199019A (en) * | 2015-04-14 | 2016-12-01 | トヨタ自動車株式会社 | Method for crushing deposited powder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6795215B2 (en) * | 2019-04-17 | 2020-12-02 | 三久股ふん有限公司 | Containment device to eliminate bridging |
-
1992
- 1992-04-15 JP JP4119905A patent/JP2904643B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011207500A (en) * | 2010-03-30 | 2011-10-20 | Nippon Paper Industries Co Ltd | Auxiliary device for filling storage item into storage container |
| JP2016199019A (en) * | 2015-04-14 | 2016-12-01 | トヨタ自動車株式会社 | Method for crushing deposited powder |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2904643B2 (en) | 1999-06-14 |
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