JPH0734023Y2 - Weighing and transporting device for powder and granules - Google Patents
Weighing and transporting device for powder and granulesInfo
- Publication number
- JPH0734023Y2 JPH0734023Y2 JP4527089U JP4527089U JPH0734023Y2 JP H0734023 Y2 JPH0734023 Y2 JP H0734023Y2 JP 4527089 U JP4527089 U JP 4527089U JP 4527089 U JP4527089 U JP 4527089U JP H0734023 Y2 JPH0734023 Y2 JP H0734023Y2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- weighing
- bellows
- pressure
- supply
- 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.)
- Expired - Fee Related
Links
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、粉体、粒体等の被輸送物を秤量して定量輸
送するのに適した秤量輸送装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a weighing and transporting device suitable for weighing and quantitatively transporting an object to be transported such as powder and granules.
〔従来技術とその課題〕 従来、第３図に示すような粉粒体等の輸送系において
は、原料供給タンクＳと秤量タンクＷとを上下直列にベ
ローズ21と供給弁22をこの順に設けた供給管20を介して
接続している。また、秤量タンクＷの下流側には受入タ
ンクＲが可撓管25及び払出弁27を設けた払出管26を介し
て接続されている。秤量タンクＷには秤量機能のための
ロードセル23が設けられており、供給タンクＳから秤量
タンクＷに送られてくる或いは秤量タンクＷから受入タ
ンクＲに送給される原料の秤量が連続的に行なわれて定
量輸送をしている。[Prior Art and its Problems] Conventionally, in a transportation system for powder or the like as shown in FIG. 3, a raw material supply tank S and a weighing tank W are arranged in series in a vertical direction, and a bellows 21 and a supply valve 22 are provided in this order. It is connected via a supply pipe 20. A receiving tank R is connected to the downstream side of the weighing tank W via a flexible pipe 25 and a payout pipe 26 provided with a payout valve 27. The weighing tank W is provided with a load cell 23 for a weighing function, and the amount of raw material sent from the supply tank S to the weighing tank W or fed from the weighing tank W to the receiving tank R is continuously measured. It is carried out and is carrying out quantitative transportation.
ところで、供給タンクＳが大気に開放しているような非
密封輸送系の場合、ベローズ21には圧力反力を生じない
ためロードセル23で常に正確な秤量を連続的に行うこと
ができる。しかしながら供給タンクＳに操業圧の如き変
動圧がかかるような密封された輸送系では、供給タンク
Ｓから供給される原料の秤量を行っている時に供給タン
クＳに圧力がかかった（或いは圧力が変動した）時には
ベローズ21の圧力反力（変動分の反力）がロードセル23
に付加されるため、正確な秤量ができなくなって定量輸
送ができなくなる。By the way, in the case of a non-sealed transportation system in which the supply tank S is open to the atmosphere, since the pressure reaction force is not generated in the bellows 21, the load cell 23 can always perform accurate weighing continuously. However, in the sealed transportation system in which the supply tank S is subjected to a fluctuating pressure such as an operating pressure, pressure is applied to the supply tank S (or the pressure fluctuates while the raw material supplied from the supply tank S is being weighed). The pressure reaction force of the bellows 21 (reaction force for fluctuation) is sometimes applied to the load cell 23.
Therefore, it becomes impossible to carry out accurate weighing and quantitative transportation becomes impossible.
他方、従来より例えば特開昭57-156923号公報記載の粉
粒体等の加圧定量連続輸送装置においては、秤量タンク
内圧と秤量値の関係を計器により補正することが提案さ
れている。しかしながら、この輸送装置の場合は、種々
の演算器等が必要であるため秤量に係わる装置全体が非
常に複雑化するという欠点があり、また、補正係数の事
前掌握が必要となる等の不具合がある。On the other hand, it has been conventionally proposed to correct the relationship between the internal pressure of the weighing tank and the weighing value by a meter in the pressurized quantitative continuous transporting apparatus for powder or granular material described in JP-A-57-156923. However, in the case of this transportation device, there is a drawback that the whole device relating to weighing becomes very complicated because various arithmetic units and the like are required, and there is a problem that it is necessary to grasp the correction coefficient in advance. is there.
そこで、本考案は秤量タンクの前後（上流側と下流側）
に圧力反力を相殺させるべく一対のベローズを設けて秤
量タンクにおける精度の良い秤量機能を確保して連続的
な定量輸送を可能にせんとする。Therefore, the present invention is before and after the weighing tank (upstream side and downstream side)
A pair of bellows is provided in order to cancel the pressure reaction force, and a precise weighing function in the weighing tank is secured to enable continuous quantitative transportation.
そのため、本考案の秤量輸送装置は、ロードセル等によ
る秤量機能を有する秤量タンクの上流側に圧力変動下に
ある原料供給タンク、下流側に受入タンクを接続した輸
送系において、該供給タンクと該秤量タンクとの間に供
給弁及び第１ベローズをこの順に介装し、しかも該秤量
タンクを前記第１ベローズと同一の内圧推力定数を有す
る第２ベローズを介して固定側に支持すると共に、該第
１ベローズと第２ベローズ間を該秤量タンクを介して均
圧するための均圧手段を設けたことを特徴とする。Therefore, the weighing and transporting device of the present invention is used in a transport system in which a raw material supply tank under pressure fluctuation is connected to the upstream side of a weighing tank having a weighing function such as a load cell, and a receiving tank is connected to the downstream side. A supply valve and a first bellows are provided in this order between the tank and the tank, and the weighing tank is supported on the stationary side via a second bellows having the same internal pressure thrust constant as the first bellows. A pressure equalizing means for equalizing the pressure between the first bellows and the second bellows via the weighing tank is provided.
上記構成において、原料供給タンク側に圧力がかかった
場合或いは内圧変動があっても、第１ベローズと第２ベ
ローズ間は秤量タンクを介して均圧手段によって常に均
圧（同一圧力下）状態にされるから、これによって生じ
る第１ベローズの圧力反力と固定側の第２ベローズの圧
力反力とが相殺作用をなす。In the above configuration, even if pressure is applied to the raw material supply tank side or there is a fluctuation in the internal pressure, the pressure equalizing means is always provided between the first bellows and the second bellows via the weighing tank (at the same pressure). Therefore, the pressure reaction force of the first bellows and the pressure reaction force of the second bellows on the fixed side cancel each other.
従って、供給タンクに圧力がかかったり、その内圧が変
動しても常に秤量タンクにおける秤量機能の一定精度が
確保され、粉粒体等の定量輸送が可能となる。Therefore, even if pressure is applied to the supply tank or its internal pressure fluctuates, a certain accuracy of the weighing function in the weighing tank is always ensured, and quantitative transportation of powdered particles or the like becomes possible.
以下、本考案の実施例を添付図面を参照しながら説明す
る。Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
第１図は本考案の第１実施例にかかる秤量輸送装置の概
念図である。図において、Ｓは圧力変動下にある原料供
給タンクで、固定側Ａに支持されている。Ｗは秤量タン
クであって、供給タンクＳとはフィーダ１、供給弁２お
よび第１ベローズ３がこの順に配設された供給管４を介
して直列に接続されている。供給タンクＳと秤量タンク
Ｗ間には均圧ライン５が開閉弁６を介して設けてある。
一方、秤量タンクＷの下流側には可撓管７、払出弁８を
有する払出管９を介して受入タンクＲに接続されてお
り、秤量タンクＷを加圧することにより秤量タンクＷ内
の原料（被輸送物たる粉体、粒体等）が受入タンクＲへ
輸送されるようになっている。10はその加圧ラインであ
る。FIG. 1 is a conceptual diagram of a weighing and transporting device according to a first embodiment of the present invention. In the figure, S is a raw material supply tank under pressure fluctuation, which is supported on the fixed side A. W is a weighing tank, which is connected to the supply tank S in series through a supply pipe 4 in which a feeder 1, a supply valve 2 and a first bellows 3 are arranged in this order. A pressure equalizing line 5 is provided between the supply tank S and the weighing tank W via an opening / closing valve 6.
On the other hand, the downstream side of the weighing tank W is connected to a receiving tank R via a flexible pipe 7 and a dispensing pipe 9 having a dispensing valve 8, and by pressurizing the weighing tank W, the raw material in the weighing tank W ( The material to be transported, such as powder and granules, is transported to the receiving tank R. 10 is the pressurizing line.
秤量タンクＷは秤量機能を有する。つまり、秤量タンク
Ｗにはロードセル14が配備されていて、このロードセル
14にかかる荷重を検出して秤量タンクＷ内に受け入れら
れる原料又は秤量タンクＷから送出される原料の秤量を
行っている。The weighing tank W has a weighing function. In other words, the load cell 14 is provided in the weighing tank W.
The load applied to 14 is detected, and the raw material received in the weighing tank W or the raw material sent from the weighing tank W is weighed.
秤量タンクＷの下部に設けた支持台15は第２ベローズ13
を介して固定側Ｂに支持されている。第２ベローズ13は
上記第１ベローズ３と同一の内圧推力定数を有する。こ
の第２ベローズ13には上記加圧ライン10からの分岐ライ
ン12が接続されており、第１ベローズと第２ベローズ間
の均圧手段を構成するようになっている。つまり、秤量
タンクＷと第２ベローズとは加圧ライン10及び分岐ライ
ン12を介して連通しているため、第１ベローズと第２ベ
ローズ間は秤量タンクＷを介して均圧（同一内圧）状態
にされる。なお、16は可撓管を示し、秤量タンクＷはい
ずれの固定配管等からも遮断され、秤量のために自由な
動きが許されている。The support base 15 provided at the bottom of the weighing tank W is the second bellows 13
It is supported on the fixed side B via. The second bellows 13 has the same internal pressure thrust constant as the first bellows 3. A branch line 12 from the pressure line 10 is connected to the second bellows 13 so as to constitute a pressure equalizing means between the first bellows and the second bellows. That is, since the weighing tank W and the second bellows are communicated with each other through the pressurizing line 10 and the branch line 12, the first bellows and the second bellows are in a uniform pressure state (same internal pressure) via the weighing tank W. To be Reference numeral 16 denotes a flexible tube, and the weighing tank W is cut off from any fixed pipes or the like, and is free to move for weighing.
以上により構成される輸送系は加圧定量輸送に適したも
のである。The transportation system configured as described above is suitable for pressurized quantitative transportation.
次に、以上の構成よりなる輸送系の動作を説明する。Next, the operation of the transportation system having the above configuration will be described.
供給タンクＳから秤量タンクＷに原料を送出する場合、
まず均圧ライン５の開閉弁６を開として供給タンクＳと
秤量タンクＷ間の均圧を行う。次いで供給弁２を開きフ
ィーダ１により原料を秤量タンクＷに送出する。この時
秤量タンクＷに受け入れられる原料の重量はロードセル
14を介して秤量されて表示器WIに表示される。原料受け
入れ中に供給タンクＳに圧力がかかった場合（又は内圧
が変動した場合）には第１ベローズ３に圧力反力が生じ
る（又は変動する）。その圧力反力相当分の力は、従来
のものであればロードセル14に付加されてしまうが、本
考案装置の場合は秤量タンクＷが第２ベローズ13を介し
て固定側Ｂに支持されており、しかも秤量タンクＷと第
２ベローズ13とは加圧ライン10と分岐ライン12を介して
連通しているため、供給タンクＳ即ち秤量タンクＷの圧
力はそのまま第２ベローズ13にも付与され、しかも第１
ベローズ３と第２ベローズ13との内圧推力定数が同一で
あるから、両者の圧力反力は相殺されることになる。When the raw material is sent from the supply tank S to the weighing tank W,
First, the on-off valve 6 of the pressure equalizing line 5 is opened to equalize the pressure between the supply tank S and the weighing tank W. Next, the supply valve 2 is opened and the raw material is sent to the weighing tank W by the feeder 1. At this time, the weight of the raw material received in the weighing tank W is the load cell.
It is weighed via 14 and displayed on the display WI. When a pressure is applied to the supply tank S (or when the internal pressure fluctuates) while receiving the raw material, a pressure reaction force is generated (or fluctuates) on the first bellows 3. The force equivalent to the pressure reaction force is added to the load cell 14 in the conventional case, but in the device of the present invention, the weighing tank W is supported on the fixed side B via the second bellows 13. Moreover, since the weighing tank W and the second bellows 13 communicate with each other through the pressurizing line 10 and the branch line 12, the pressure of the supply tank S, that is, the weighing tank W is directly applied to the second bellows 13, and First
Since the internal pressure thrust constants of the bellows 3 and the second bellows 13 are the same, the pressure reaction forces of the two are canceled.
ここに、内圧推力定数とは、ベローズに内圧がかかった
時にベローズが伸長する性質があり、その推力は内圧に
ほぼ比例するものであり、圧力反力とはベローズの伸長
を妨げる（ベローズを一定の長さに保持しようとする）
ことにより生じる力である。Here, the internal pressure thrust constant has the property that the bellows expands when internal pressure is applied to the bellows, and its thrust is almost proportional to the internal pressure.The pressure reaction force prevents expansion of the bellows. Try to keep the length of)
It is the force that results.
従って、供給タンクＳに圧力がかかっても或いは圧力変
動があっても第１ベローズ３と第２ベローズ13間で圧力
反力が相殺されるから、ロードセル14による秤量に誤差
を生じることはなく、一定の秤量精度を常に維持でき
る。Therefore, the pressure reaction force is canceled between the first bellows 3 and the second bellows 13 even if pressure is applied to the supply tank S or there is a pressure fluctuation, so that there is no error in weighing by the load cell 14. Constant weighing accuracy can always be maintained.
次に秤量タンクＷから受入タンクＲへ移送する場合に
は、供給弁２、開閉弁６を閉として供給タンクＳと完全
に遮断した後、払出弁８を開としかつ開閉弁11を開とし
て加圧流体を秤量タンクＷ及び第２ベローズ13に送給す
ると、秤量タンクＷ内の原料は受入タンクＲへ加圧輸送
される。この時にも輸送される原料の秤量が行われる
が、第１ベローズ３と第２ベローズ13間の圧力は加圧ラ
イン10と分岐ライン12を通じて常に同一になるようにし
てあるから、上記と同様に秤量タンクＷに圧力がかかっ
ても、又その圧力に変動があっても一定の秤量精度が常
に維持される。かくして、原料の連続的な定量輸送が可
能になる。なお、供給タンクＳの固定側Ａと第２ベロー
ズ13の固定側Ｂとをタイロッドによって一体に構成する
と反力受部材を簡略化できる。Next, when transferring from the weighing tank W to the receiving tank R, the supply valve 2 and the opening / closing valve 6 are closed to completely shut off the supply tank S, and then the dispensing valve 8 is opened and the opening / closing valve 11 is opened. When the pressurized fluid is sent to the weighing tank W and the second bellows 13, the raw material in the weighing tank W is pressure-transported to the receiving tank R. Although the raw material to be transported is also weighed at this time, the pressure between the first bellows 3 and the second bellows 13 is always the same through the pressurizing line 10 and the branch line 12, and thus the same as above. Even if pressure is applied to the weighing tank W or if the pressure changes, a constant weighing accuracy is always maintained. Thus, it becomes possible to carry out a constant quantitative transportation of the raw material. If the fixed side A of the supply tank S and the fixed side B of the second bellows 13 are integrally formed by a tie rod, the reaction force receiving member can be simplified.
第２図は本考案の第２実施例を示す概念図である。この
実施例の輸送系は重力を利用した輸送に適したもので、
供給タンク内圧≦受入タンク内圧の場合を例にとって説
明する。FIG. 2 is a conceptual diagram showing a second embodiment of the present invention. The transportation system of this embodiment is suitable for transportation using gravity,
The case where the internal pressure of the supply tank ≤ the internal pressure of the receiving tank will be described as an example.
図において、前記第１実施例と同一の構成要素には同一
の符号を付し詳細説明は省略する。In the figure, the same components as those of the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
Ｓは圧力変動を受ける供給タンク、Ｗはロードセル14に
よる秤量機能を有する秤量タンクで、秤量結果は表示器
WIに表示される。Ｒは圧力変動があることもある受入タ
ンク、１、1Aはフィーダ、２は供給弁、８は払出弁であ
る。３は第１ベローズで秤量タンクＷと供給弁２間に介
装され、13はこの第１ベローズ３と同一の内圧推力定数
を有する第２ベローズであって、秤量タンクＷと払出弁
８との間に介装されている。このように、秤量タンクＷ
の前後（上流側と下流側）に第１ベローズ３と第２ベロ
ーズ13が配設されており、払出管９自体が秤量タンクＷ
を介して両ベローズ間の均圧手段の役割を発揮してい
る。また、第２ベローズは第１実施例における可撓管７
の役割をも担っている。S is a supply tank that receives pressure fluctuations, W is a weighing tank having a weighing function by the load cell 14, and the weighing result is an indicator.
Displayed on WI. R is a receiving tank where pressure may fluctuate, 1 and 1A are feeders, 2 is a supply valve, and 8 is a discharge valve. Reference numeral 3 is a first bellows which is interposed between the weighing tank W and the supply valve 2, and 13 is a second bellows having the same internal pressure thrust constant as the first bellows 3, and is composed of the weighing tank W and the payout valve 8. It is interposed between. In this way, the weighing tank W
The first bellows 3 and the second bellows 13 are arranged before and after (upstream side and downstream side), and the dispensing pipe 9 itself is a weighing tank W.
It plays the role of pressure equalizing means between both bellows. The second bellows is the flexible tube 7 in the first embodiment.
Also plays the role of.
５は供給タンクＳと秤量タンクＷ間の均圧ライン、17は
秤量タンクＷと受入タンクＲ間の均圧ラインで分岐ライ
ン19が逆止弁19Aを介して受入タンクＲに接続されてい
る。なお、６、18は開閉弁である。供給タンクＳは固定
側Ａに支持され、受入タンクＲは固定側Ｂに支持されて
いる。5 is a pressure equalizing line between the supply tank S and the weighing tank W, 17 is a pressure equalizing line between the weighing tank W and the receiving tank R, and a branch line 19 is connected to the receiving tank R via a check valve 19A. Incidentally, 6 and 18 are open / close valves. The supply tank S is supported on the fixed side A, and the receiving tank R is supported on the fixed side B.
上記構成において、原料を供給タンクＳから秤量タンク
Ｗに移送する場合には、まず均圧ライン５の開閉弁６を
開とし、両タンクの内圧を均圧化する。それから供給弁
２を開として重力により原料を供給タンクＳから秤量タ
ンクＷに送出する。この時払出弁８は閉じられている。
この状態で供給タンクＳに内圧がかかっても又は変動し
ても第１ベローズ３と第２ベローズ13にかかる内圧は同
じであるからその圧力によって生じる圧力反力は相殺さ
れる。従って、秤量タンクＷにおける秤量に誤差を生じ
ることはなく、引き続き精度良い秤量が可能である。In the above configuration, when the raw material is transferred from the supply tank S to the weighing tank W, the on-off valve 6 of the pressure equalizing line 5 is first opened to equalize the internal pressure of both tanks. Then, the supply valve 2 is opened and the raw material is sent from the supply tank S to the weighing tank W by gravity. At this time, the pay-out valve 8 is closed.
Even if the internal pressure is applied to the supply tank S or fluctuates in this state, the internal pressures applied to the first bellows 3 and the second bellows 13 are the same, and therefore the pressure reaction force generated by the pressure is canceled. Therefore, there is no error in weighing in the weighing tank W, and accurate weighing can be continued.
次いで、供給弁２及び開閉弁６を閉とし、均圧ライン17
上の開閉弁18を開として秤量タンクＷと受入タンクＲと
の間を均圧する。一方、逆止弁19Aは例えばスイングチ
ェック弁のようなものであり、受入タンクＲの方が加圧
ライン17の圧力より大きい場合には弁は閉となり、加圧
ライン17からの加圧流体は遮断される。加圧ライン17の
圧力が受入タンクＲの内圧より大きくなれば自動的に弁
が開となって連通する。この加圧ライン17は秤量タンク
Ｗと受入タンクＲ間の圧力差が大きくなるような輸送系
では、払出弁８を開いた時に受入タンクＲの圧力が急激
に秤量タンクＷの方にかかるのを防止するために必要で
ある。しかし、圧力差が常に小さい輸送系の場合には、
このようなことが起こらないため均圧ライン17は特に必
要とされない。多少の圧力差は払出弁８を開とすること
で秤量タンクＷと受入タンクＲ間が自動的に均圧化して
解消される。また、原料移送中は払出管９を介して秤量
タンクＷと受入タンクＲとは常に連通しているから、た
とえ受入タンク内圧に変動があっても両タンクの内圧は
自動的に同一になる。この意味で原料移送中は払出管９
自体が均圧手段としての役目を発揮していると云える。Next, the supply valve 2 and the on-off valve 6 are closed, and the pressure equalizing line 17
The upper opening / closing valve 18 is opened to equalize the pressure between the weighing tank W and the receiving tank R. On the other hand, the check valve 19A is, for example, a swing check valve. When the receiving tank R is higher than the pressure in the pressurization line 17, the valve is closed and the pressurized fluid from the pressurization line 17 is released. Be cut off. When the pressure in the pressurizing line 17 becomes larger than the internal pressure of the receiving tank R, the valve is automatically opened to communicate. In the pressurization line 17, in the transportation system in which the pressure difference between the weighing tank W and the receiving tank R becomes large, the pressure of the receiving tank R is suddenly applied to the weighing tank W when the dispensing valve 8 is opened. Necessary to prevent. However, in the case of a transportation system where the pressure difference is always small,
Since such a thing does not occur, the pressure equalizing line 17 is not particularly required. The pressure difference between the weighing tank W and the receiving tank R is automatically equalized and eliminated by opening the discharge valve 8 for some pressure difference. In addition, since the weighing tank W and the receiving tank R are always in communication with each other via the delivery pipe 9 during the transfer of the raw materials, the internal pressures of both tanks are automatically the same even if the internal pressures of the receiving tanks fluctuate. In this sense, the pay-out pipe 9 is used during raw material transfer.
It can be said that itself plays a role as a pressure equalizing means.
このように秤量タンクＷと受入タンクＲとを均圧化した
後、開閉弁18を閉、払出弁８を開として秤量タンクＷか
ら原料を受入タンクＲに移送する。この移送中も秤量タ
ンクＷにおける秤量が行われるが、受入タンクＲに圧力
変動があっても、払出管９を介して秤量タンクＷにすぐ
反映され、両タンクの内圧は同一となるから秤量タンク
Ｗの前後（上流側と下流側）にある第１ベローズ３と第
２ベローズ13にかかる圧力も同一となり、それに生じる
圧力反力は相殺される。従って、秤量精度が悪くなるよ
うなことはない。供給タンクＳと下流側の受入タンクＲ
との圧力が異なる輸送系において、圧力が変動しても定
量受け入れ、払い出し輸送が可能である。After the weighing tank W and the receiving tank R are pressure-equalized in this way, the on-off valve 18 is closed and the discharge valve 8 is opened to transfer the raw material from the weighing tank W to the receiving tank R. Although the weighing tank W is weighed during this transfer as well, even if the receiving tank R changes in pressure, it is immediately reflected in the weighing tank W via the delivery pipe 9, and the internal pressures of both tanks become the same, so that the weighing tanks have the same internal pressure. The pressure applied to the first bellows 3 and the second bellows 13 before and after W (upstream side and downstream side) is also the same, and the pressure reaction force generated therein is offset. Therefore, the weighing accuracy does not deteriorate. Supply tank S and receiving tank R on the downstream side
Even if the pressure fluctuates in a transportation system with different pressures, it is possible to receive a fixed amount and deliver it.
以上、第１ベローズと第２ベローズとは各々１組で構成
された２つの実施例を紹介したが、各々のベローズが並
列に複数組配された場合でも、各々のベローズの内圧推
力定数の合計値を同一とすることで実施可能である。As described above, the two embodiments in which each of the first bellows and the second bellows is composed of one set have been introduced. However, even when a plurality of sets of each bellows are arranged in parallel, the total of the internal pressure thrust constants of each bellows is summed up. It can be implemented by making the values the same.
以上説明したように、本考案によれば、秤量タンクの前
後に一対の同一の内圧推力定数を有するベローズを介装
したので、供給タンクないし受入タンクに圧力がかかっ
たり又圧力変動があったりした場合にも両ベローズの圧
力反力相殺作用によって常に一定の秤量精度を確保でき
る。更にまた、供給タンクと受入タンクの内圧が異な
り、かつ、その圧力変化の下でも定量輸送が可能とな
る。As described above, according to the present invention, since a pair of bellows having the same internal pressure thrust constant is provided before and after the weighing tank, pressure is applied to the supply tank or the receiving tank, or pressure fluctuation occurs. Also in this case, a constant weighing accuracy can always be ensured by the pressure reaction force canceling action of both bellows. Furthermore, it is possible to carry out quantitative transportation even if the internal pressures of the supply tank and the receiving tank are different and the pressure changes.
第１図は本考案装置の第１実施例を示す概念図、第２図
は同じく第２実施例の概念図、第３図は従来の装置の説
明図である。 Ｓ……供給タンク、Ｗ……秤量タンク、Ｒ……受入タン
ク、２……供給弁、３……第１ベローズ、５、17……均
圧ライン、８……払出弁、10……加圧ライン、13……第
２ベローズ、14……ロードセル、19A……逆止弁、Ａ、
Ｂ、Ｃ……固定側。FIG. 1 is a conceptual diagram showing a first embodiment of the device of the present invention, FIG. 2 is a conceptual diagram of the same second embodiment, and FIG. 3 is an explanatory diagram of a conventional device. S ... Supply tank, W ... Weighing tank, R ... Receiving tank, 2 ... Supply valve, 3 ... First bellows, 5, 17 ... Pressure equalizing line, 8 ... Discharge valve, 10 ... Addition Pressure line, 13 …… Second bellows, 14 …… Load cell, 19A …… Check valve, A,
B, C ... Fixed side.
Claims (1)
タンクの上流側に圧力変動下にある原料供給タンク、下
流側に受入タンクを接続した輸送系において、該供給タ
ンクと該秤量タンクとの間に供給弁及び第１ベローズを
この順に介装し、しかも該秤量タンクを前記第１ベロー
ズと同一の内圧推力定数を有する第２ベローズを介して
固定側に支持すると共に、該第１ベローズと第２ベロー
ズ間を該秤量タンクを介して均圧するための均圧手段を
設けたことを特徴とする粉粒体等の秤量輸送装置。1. A transportation system in which a raw material supply tank under pressure fluctuation is connected to an upstream side of a weighing tank having a weighing function such as a load cell and a receiving tank is connected to a downstream side of the weighing tank between the supply tank and the weighing tank. The supply valve and the first bellows are interposed in this order, and the weighing tank is supported on the fixed side via the second bellows having the same internal pressure thrust constant as the first bellows, and the first bellows and the second bellows are supported. A weighing and transporting device for powdered particles or the like, which is provided with a pressure equalizing means for equalizing pressure between the bellows via the weighing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4527089U JPH0734023Y2 (en) | 1989-04-17 | 1989-04-17 | Weighing and transporting device for powder and granules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4527089U JPH0734023Y2 (en) | 1989-04-17 | 1989-04-17 | Weighing and transporting device for powder and granules |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02135531U JPH02135531U (en) | 1990-11-09 |
| JPH0734023Y2 true JPH0734023Y2 (en) | 1995-08-02 |
Family
ID=31559293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4527089U Expired - Fee Related JPH0734023Y2 (en) | 1989-04-17 | 1989-04-17 | Weighing and transporting device for powder and granules |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0734023Y2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6423813B1 (en) | 1999-04-19 | 2002-07-23 | Teijin Limited | Branched aromatic polycarbonate, and production method and blow-molded article thereof |
| US6523721B1 (en) | 1999-04-30 | 2003-02-25 | Kawasaki Jukogyo Kabushiki Kaisha | Powder and granular material supply system for closed system |
| US8691934B2 (en) | 2004-03-11 | 2014-04-08 | Knauf Insulation Gmbh | Binder compositions and associated methods |
| US8901208B2 (en) | 2007-01-25 | 2014-12-02 | Knauf Insulation Sprl | Composite wood board |
| US8940089B2 (en) | 2007-08-03 | 2015-01-27 | Knauf Insulation Sprl | Binders |
| US9260627B2 (en) | 2005-07-26 | 2016-02-16 | Knauf Insulation, Inc. | Binders and materials made therewith |
| US9309436B2 (en) | 2007-04-13 | 2016-04-12 | Knauf Insulation, Inc. | Composite maillard-resole binders |
| US9416248B2 (en) | 2009-08-07 | 2016-08-16 | Knauf Insulation, Inc. | Molasses binder |
| US9492943B2 (en) | 2012-08-17 | 2016-11-15 | Knauf Insulation Sprl | Wood board and process for its production |
| US9493603B2 (en) | 2010-05-07 | 2016-11-15 | Knauf Insulation Sprl | Carbohydrate binders and materials made therewith |
| US9505883B2 (en) | 2010-05-07 | 2016-11-29 | Knauf Insulation Sprl | Carbohydrate polyamine binders and materials made therewith |
| US11846097B2 (en) | 2010-06-07 | 2023-12-19 | Knauf Insulation, Inc. | Fiber products having temperature control additives |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0736922Y2 (en) * | 1990-08-31 | 1995-08-23 | 川崎重工業株式会社 | Weighing and transporting device for powder and granules |
-
1989
- 1989-04-17 JP JP4527089U patent/JPH0734023Y2/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6423813B1 (en) | 1999-04-19 | 2002-07-23 | Teijin Limited | Branched aromatic polycarbonate, and production method and blow-molded article thereof |
| US6523721B1 (en) | 1999-04-30 | 2003-02-25 | Kawasaki Jukogyo Kabushiki Kaisha | Powder and granular material supply system for closed system |
| US8691934B2 (en) | 2004-03-11 | 2014-04-08 | Knauf Insulation Gmbh | Binder compositions and associated methods |
| US9260627B2 (en) | 2005-07-26 | 2016-02-16 | Knauf Insulation, Inc. | Binders and materials made therewith |
| US9464207B2 (en) | 2005-07-26 | 2016-10-11 | Knauf Insulation, Inc. | Binders and materials made therewith |
| US8901208B2 (en) | 2007-01-25 | 2014-12-02 | Knauf Insulation Sprl | Composite wood board |
| US9447281B2 (en) | 2007-01-25 | 2016-09-20 | Knauf Insulation Sprl | Composite wood board |
| US9309436B2 (en) | 2007-04-13 | 2016-04-12 | Knauf Insulation, Inc. | Composite maillard-resole binders |
| US8940089B2 (en) | 2007-08-03 | 2015-01-27 | Knauf Insulation Sprl | Binders |
| US9469747B2 (en) | 2007-08-03 | 2016-10-18 | Knauf Insulation Sprl | Mineral wool insulation |
| US9416248B2 (en) | 2009-08-07 | 2016-08-16 | Knauf Insulation, Inc. | Molasses binder |
| US9493603B2 (en) | 2010-05-07 | 2016-11-15 | Knauf Insulation Sprl | Carbohydrate binders and materials made therewith |
| US9505883B2 (en) | 2010-05-07 | 2016-11-29 | Knauf Insulation Sprl | Carbohydrate polyamine binders and materials made therewith |
| US11846097B2 (en) | 2010-06-07 | 2023-12-19 | Knauf Insulation, Inc. | Fiber products having temperature control additives |
| US9492943B2 (en) | 2012-08-17 | 2016-11-15 | Knauf Insulation Sprl | Wood board and process for its production |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02135531U (en) | 1990-11-09 |
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