JPH0428031Y2 - - Google Patents
Info
- Publication number
- JPH0428031Y2 JPH0428031Y2 JP1368585U JP1368585U JPH0428031Y2 JP H0428031 Y2 JPH0428031 Y2 JP H0428031Y2 JP 1368585 U JP1368585 U JP 1368585U JP 1368585 U JP1368585 U JP 1368585U JP H0428031 Y2 JPH0428031 Y2 JP H0428031Y2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- powder
- rotary feeder
- granular material
- rotary
- 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
Links
- 239000000843 powder Substances 0.000 claims description 64
- 239000008187 granular material Substances 0.000 claims description 51
- 238000001514 detection method Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 235000003642 hunger Nutrition 0.000 claims description 3
- 230000037351 starvation Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、揺動自在に支承された基体上にロー
タリフイーダと、カウンタウエイトとが載置され
た粉粒体流量の連続計量装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a continuous measuring device for the flow rate of powder or granular material, in which a rotary feeder and a counterweight are placed on a swingably supported base. .
［従来の技術］
かかる形式の粉粒体流量の連続計量装置におい
て、ロータリフイーダ内に投入される粉粒体の重
量とロータリバルブの回転数とから粉粒体流量を
計測する計量装置はすでに公知である（特開昭56
−27619号公報参照）。[Prior Art] In this type of continuous measuring device for the flow rate of powder and granular materials, there has already been a measuring device that measures the flow rate of the powder and granular material from the weight of the powder and granular material fed into the rotary feeder and the rotation speed of the rotary valve. It is publicly known (Japanese Unexamined Patent Publication No. 1983)
-Refer to Publication No. 27619).
この従来技術によれば、ロータリフイーダは水
平軸を介して支持機構により回転自在に支えら
れ、該水平軸に直角な方向に設けたロードセルで
平衡を保つように支持されており、またロータリ
バルブの回転数を検出する回転数検出器を備えて
いる。粉粒体の投入による荷重の増加はロードセ
ルにより検出され、これと回転数検出器で検出し
たロータリバルブの回転数とから粉粒体流量が計
測される。 According to this prior art, the rotary feeder is rotatably supported by a support mechanism via a horizontal axis, supported so as to maintain balance by a load cell installed in a direction perpendicular to the horizontal axis, and is also provided with a rotary valve. Equipped with a rotation speed detector that detects the rotation speed of the engine. The increase in load due to the introduction of powder and granular material is detected by a load cell, and the powder and granular material flow rate is measured from this and the rotation speed of the rotary valve detected by a rotation speed detector.
しかしこの従来技術では、ロータリフイーダを
水平軸を介して支持機構により回転自在に支え、
該水平軸に直角な方向に設けたロードセルで平衡
を保つように支持する等の複雑な構成であるた
め、装置が高価なものとなるばかりでなく、装置
の保守、点検に手間取るという問題があつた。 However, in this conventional technology, the rotary feeder is rotatably supported by a support mechanism via a horizontal shaft.
Because the device has a complicated structure, such as supporting it in a balanced manner with a load cell installed perpendicular to the horizontal axis, it not only makes the device expensive, but also causes problems in that it takes time to maintain and inspect the device. Ta.
そこで本出願人は、上記従来の装置の欠点を解
消した連続計量装置を提案した。この装置は、ロ
ータリフイーダ、カウンタウエイトの外に更に、
ロータリフイーダの回転数を検出する回転数検出
器、ロータリフイーダとカウンタウエイトが載置
されている基体の変位量から重量を検出する重量
検出器、計算システム等を備えているので、ロー
タリフイーダ内に粉粒体が全く溜つていない状態
の重量検出器の検出値Woと、飢餓状態の検出値
Waとから、ロータリフイーダ内に溜つている粉
粒体の重量ΔW＝Wa−Woを求め、そしてロータ
リフイーダの単位時間当りの回転数Ｒから単位時
間当りの粉粒体流量Ｆ＝Ｋ×ΔW×Ｒ（Ｋ＞０、
通常約２）を求めることができ、本考案の所期の
目的が達成されている。 Therefore, the present applicant has proposed a continuous weighing device that eliminates the drawbacks of the above-mentioned conventional devices. In addition to the rotary feeder and counterweight, this device also includes
Equipped with a rotation speed detector to detect the rotation speed of the rotary feeder, a weight detector to detect the weight from the amount of displacement of the base on which the rotary feeder and counterweight are mounted, a calculation system, etc. Detection value Wo of the weight detector when no powder or granules have accumulated in IDA and detection value under starvation condition
From Wa, find the weight ΔW=Wa−Wo of the powder accumulated in the rotary feeder, and from the rotation speed R of the rotary feeder per unit time, the flow rate of powder and granule per unit time F=K× ΔW×R(K>0,
Usually about 2) can be obtained, and the intended purpose of the present invention is achieved.
ところで上記提案した粉粒体の連続計量装置に
も、なお改良の余地があることを見出した。すな
わちロータリフイーダは、ケーシングと、ケーシ
ング内で回転駆動される回転羽根とから構成され
ているので、回転羽根がケーシング内で回転する
とき、粉粒体が羽根の先端とケーシング内壁との
間に噛み込むと、衝撃が生じ、この衝撃が重量検
出器に伝達されて計量数値のバラツキ或いは誤差
の原因となることを見出した。 By the way, we have found that there is still room for improvement in the above-mentioned proposed continuous measuring device for powder and granular materials. In other words, a rotary feeder is composed of a casing and a rotary blade that is driven to rotate within the casing, so when the rotary blade rotates within the casing, powder and granules are formed between the tip of the blade and the inner wall of the casing. It has been found that when the object is bitten, an impact is generated, and this impact is transmitted to the weight detector, causing variations in measured values or errors.
［考案の目的］
したがつて本考案は、従来のロータリフイーダ
形式の粉粒体流量の連続計量装置の前記欠点を解
消し、機構的にきわめてシンプルであり、比較的
安価に製作できると共に、保守、点検に手間取る
ことがなく、しかも粉粒体の噛み込み或いは挟み
込みによる衝撃がなく、それ故誤差の原因が取除
かれた精度の高い粉粒体流量の連続計量を行うこ
とのできる装置を提供することを目的としてなさ
れたものである。[Purpose of the invention] Therefore, the present invention solves the above-mentioned drawbacks of the conventional rotary feeder type continuous measuring device for the flow rate of powder and granular materials, is mechanically extremely simple, can be manufactured at a relatively low cost, We want to create a device that can continuously measure the flow rate of powder and granular materials with high precision, without requiring time and effort in maintenance and inspection, and without shocks caused by biting or pinching of powder and granules, thus eliminating the causes of errors. It was made for the purpose of providing.
［考案の構成］
本考案によれば、複数枚の回転羽根を内部に有
するロータリフイーダと、該ロータリフイーダを
駆動するモータ、伝導機構等を含んだカウンタウ
エイトと、揺動可能に支承され、その一方端部に
前記ロータリフイーダが、そして他方端部に前記
カウンタウエイトが載置される基体と、前記ロー
タリフイーダの回転羽根の回転数を検出する回転
数検出器と、前記基体と不動部材との間にもうけ
られていて前記基体の変位量から重量を検出する
重量検出器と、前記回転数検出器及び重量検出器
でそれぞれ連続して検出された回転数信号および
重量信号が入力され、前記ロータリフイーダ内に
粉粒体が全く溜つていない状態の前記重量検出器
の検出値Woと、飢餓状態で溜つた検出値Waと
からロータリフイーダ内に溜つている粉粒体の重
量ΔW＝Wa−Woを求め、該粉粒体の重量ΔWと
前記回転数検出器で検出したロータリフイーダの
単位時間当りの回転数Ｒとから単位時間当りの粉
粒体流量の重量Ｆ＝Ｋ×ΔW×Ｒ（Ｋ＞０、通常
約２）わ求める計算システムとから成り、前記ロ
ータリフイーダの供給側には、回転羽根の回転方
向に対向する方向に粉粒体を案内する整流部材が
設けられている。[Configuration of the invention] According to the invention, a rotary feeder having a plurality of rotating blades therein, a counterweight including a motor for driving the rotary feeder, a transmission mechanism, etc., and a rotary feeder that is swingably supported. , a base body on which the rotary feeder is placed on one end and the counterweight on the other end, a rotation speed detector that detects the rotation speed of the rotary blade of the rotary feeder, and the base body. A weight detector is provided between the stationary member and detects the weight from the amount of displacement of the base, and a rotational speed signal and a weight signal continuously detected by the rotational speed detector and the weight detector are inputted. The powder and granules accumulated in the rotary feeder are calculated based on the detection value Wo of the weight detector when no powder and granules are accumulated in the rotary feeder and the detection value Wa accumulated in the starvation state. Calculate the weight ΔW=Wa−Wo of the powder and granule, and calculate the weight F of the powder and granule flow rate per unit time from the weight ΔW of the powder and the rotation speed R per unit time of the rotary feeder detected by the rotation speed detector. = K x ΔW x R (K > 0, usually about 2).On the supply side of the rotary feeder, there is a rectifier that guides the powder in a direction opposite to the rotation direction of the rotary blades. A member is provided.
［考案の作用効果］
本考案は、前述のように構成されているので、
従来の装置と同様にして粉粒体は計量されるが、
ロータリフイーダを支点に支承させた基体の一端
に配設してカウンタウエイトで所要の平衡を保
ち、基体のたわみにより重量検出器で重量を検出
するので、従来のロータリフイーダを水平軸を介
して支持機構により回転自在に支え、該水平軸に
直角な方向に設けた重量検出器で平衡を保つよう
に支持したものに比べ構造的に簡単であり、かつ
測定結果も優れ、また装置を安価に提供できると
ともに、保守点検を楽にすることができる。[Operations and effects of the invention] Since the present invention is configured as described above,
Powder and granules are weighed in the same way as conventional equipment, but
The rotary feeder is placed at one end of a base supported on a fulcrum, and a counterweight maintains the required balance, and the weight is detected by a weight detector based on the deflection of the base. It is structurally simpler than a system in which it is rotatably supported by a support mechanism and supported to maintain balance by a weight detector installed perpendicular to the horizontal axis, and the measurement results are excellent, and the device is inexpensive. In addition to making maintenance and inspection easier.
更に本考案によるとロータリフイーダの供給側
には整流板が設けられていて、この整流板によつ
て粉粒体は回転羽根の回転方向に対向する方向に
供給される。したがつて粉粒体は羽根と羽根との
間に形成されているポケツトに効果的に供給され
て、羽根の先端とケーシング内壁との間に挟み込
まれることがない。それ故挟み込みによる衝撃が
なく、計量精度が向上するものである。 Furthermore, according to the present invention, a current plate is provided on the supply side of the rotary feeder, and the granular material is supplied by this current plate in a direction opposite to the rotational direction of the rotary blades. Therefore, the powder is effectively supplied to the pockets formed between the blades, and is not trapped between the tips of the blades and the inner wall of the casing. Therefore, there is no impact due to pinching, and measurement accuracy is improved.
［好ましい実施の態様］
本考案の実施に際しては、整流板は、フレキシ
ブル配管内に設けるのが好ましい。なぜならば、
ロータリフイーダの供給側と排出側には重量或い
は振動的に絶縁するためにフレキシブル管を介装
して供給管或いは排出管が接続されるのが一般で
あるから、このフレキシブル管内に整流部材を設
けると全体構造がコンパクトになるからである。
また整流部材は取付け角度を任意に設定できるよ
うにすると、粉粒体の性質、ロータリフイーダの
回転速度等に応じて粉粒体の案内を調節できるの
で好都合である。更には、カウンタウエイトの重
量はロータリフイーダの重量よりロータリーフイ
ーダ内に飢餓状態で溜つた粉粒体の重量ΔWの約
10倍だけ小さく構成するのが好ましい。このよう
にすると、測定精度を向上することができる。更
に本考案の実施に際し、ロータリフイーダの排出
能力（容積量）を粉粒体容積流量より大きくする
のが好ましい。このようにすると、ロータリフイ
ーダ内に溜る粉粒体の重量を連続的に測定するこ
とができる。[Preferred Embodiment] When implementing the present invention, it is preferable that the current plate be provided within the flexible piping. because,
Generally, a supply pipe or a discharge pipe is connected to the supply side and discharge side of a rotary feeder through a flexible pipe for weight and vibration isolation. This is because if provided, the overall structure becomes compact.
Furthermore, it is advantageous if the installation angle of the rectifying member can be arbitrarily set, since the guidance of the powder or granule can be adjusted depending on the properties of the powder or granule, the rotational speed of the rotary feeder, and the like. Furthermore, the weight of the counterweight is approximately equal to the weight ΔW of the powder and granules accumulated in the rotary feeder in a starved state than the weight of the rotary feeder.
Preferably, it is configured to be 10 times smaller. In this way, measurement accuracy can be improved. Further, when implementing the present invention, it is preferable that the discharge capacity (volume) of the rotary feeder is made larger than the volumetric flow rate of the powder or granular material. In this way, the weight of the powder accumulated in the rotary feeder can be continuously measured.
［実施例］
以下図面を参照して本考案の実施例を説明す
る。第１図および第２図において、ロータリフイ
ーダ１は粉粒体入口２と出口３を備えたケーシン
グ４を有しており、該ケーシング４内には複数枚
の羽根５よりなるロータリバルブが設けられてい
る。このロータリフイーダ１は、支点であるベア
リング６に支承された基体であるビーム７の一方
に端部に配設され、ビーム７の他方の端部にはロ
ータリバルブを回転させるための減速機付或いは
変速機付モータ９とウエイト１０よりなるカウン
タウエイト８が配設され、またビーム７のロータ
リフイーダ１側の端部と不動部材であるベース１
１との間には、ビーム７のたわみから重量を検出
する重量検出器１２が設けられている。そして前
記カウンタウエイト８の重量は、ロータリフイー
ダ１の重量よりロータリフイーダ内に飢餓状態で
溜つた粉粒体の重量ΔWの約10倍だけ小さく設定
されている。すなわち、重量検出器１２には、当
初、ロータリフイーダ１内に飢餓状態で溜つた粉
粒体の重量ΔWの約10倍の重量がかかるように、
ビーム７の平衡状態が保たれている。また、ロー
タリフイーダ１にはロータリバルブの回転数を検
出するため回転数検出器１３が設けられ、前記重
量検出器１２と共に詳細を後述する単位時間当り
の粉粒体流量を算出する演算装置すなわち例えば
電気式計算システム１４に接続されている。な
お、ロータリフイーダ１の入口２と出口３には図
示しない粉粒体供給配管と排出配管が接続される
が、該配管とロータリフイーダ１とを重量的に絶
縁するためにこれら配管はフレキシブル配管２０
を介してロータリフイーダ１の入口２と出口３に
接続されている。[Examples] Examples of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, a rotary feeder 1 has a casing 4 having a powder inlet 2 and an outlet 3, and a rotary valve consisting of a plurality of blades 5 is installed inside the casing 4. It is being This rotary feeder 1 is disposed at one end of a beam 7 which is a base body supported by a bearing 6 which is a fulcrum, and a reducer is attached to the other end of the beam 7 for rotating a rotary valve. Alternatively, a counterweight 8 consisting of a motor 9 with a transmission and a weight 10 is disposed, and the end of the beam 7 on the rotary feeder 1 side and the base 1 which is a stationary member are disposed.
A weight detector 12 is provided between the beam 7 and the beam 7 to detect the weight from the deflection of the beam 7. The weight of the counterweight 8 is set to be smaller than the weight of the rotary feeder 1 by about 10 times the weight ΔW of the granular material accumulated in the rotary feeder in a starved state. That is, the weight detector 12 is initially loaded with a weight approximately 10 times the weight ΔW of the powder and granules accumulated in the rotary feeder 1 in a starved state.
The beam 7 is kept in equilibrium. Further, the rotary feeder 1 is provided with a rotation speed detector 13 for detecting the rotation speed of the rotary valve, and together with the weight detector 12, an arithmetic device, i.e., a calculation device for calculating the flow rate of powder/granular material per unit time, which will be described in detail later. For example, it is connected to an electrical calculation system 14. Note that a powder supply pipe and a discharge pipe (not shown) are connected to the inlet 2 and outlet 3 of the rotary feeder 1, but these pipes are flexible in order to insulate the rotary feeder 1 from the weight. Piping 20
It is connected to the inlet 2 and outlet 3 of the rotary feeder 1 via.
フレキシブル配管２０は、ロータリフイーダ１
の供給側のフランジ２１に接続され、その上方端
部は供給管のフランジ２２に接続されるようにな
つている。そしてこのフレキシブル配管２０内
に、粉粒体の案内をする整流部材２３が設けられ
ている。整流部材２３は、第２図に示すように、
略漏斗状になつていて、図示されない供給管から
供給される粉粒体を羽根の回転方向に対向する方
向に案内するようになつている。すなわち羽根５
が矢印Ａで示す方向に回転すると仮定すると、整
流部材２３の下方開口部２４は、ロータリバルブ
のセンタラインＣの右側に臨むように配置されて
いる。したがつて粉粒体はロータリバルブの右側
半分に供給されることになる。勿論羽根５が反対
方向に回転駆動されると、下方開口部２４はセン
タラインＣを越えて左側へ移動させられるように
なつている。また整流部材２３は任意の傾斜位置
で係止されるようにすると好都合である。 The flexible piping 20 is connected to the rotary feeder 1
The upper end thereof is connected to a flange 22 of the supply pipe. A flow regulating member 23 is provided within the flexible pipe 20 to guide the powder or granular material. The rectifying member 23, as shown in FIG.
It has a substantially funnel shape, and is designed to guide powder and granular material supplied from a supply pipe (not shown) in a direction opposite to the direction of rotation of the blades. That is, feather 5
Assuming that the valve rotates in the direction indicated by arrow A, the lower opening 24 of the flow regulating member 23 is arranged to face the right side of the center line C of the rotary valve. Therefore, the powder is supplied to the right half of the rotary valve. Of course, when the blade 5 is rotated in the opposite direction, the lower opening 24 is moved to the left beyond the center line C. Further, it is convenient if the flow regulating member 23 is locked at any inclined position.
次に作動について説明すると、ロータリフイー
ダ１の入口２から粉粒体がロータリフイーダ１内
に落下してくる。ロータリフイーダ１の排出能力
（容積量）は落下してくる粉粒体容積よりも大き
いため、粉粒体はロータリフイーダ１の中に飢餓
状態で溜る。ロータリバルブ５は減速機付モータ
９により回転しており、飢餓状態で溜つた粉粒体
はこのロータリバルブ５により移動して出口３よ
り落下する。 Next, the operation will be explained. Powder and granular material falls into the rotary feeder 1 from the inlet 2 of the rotary feeder 1. Since the discharge capacity (volume) of the rotary feeder 1 is larger than the volume of the falling powder and granules, the powder and granules accumulate in the rotary feeder 1 in a starved state. The rotary valve 5 is rotated by a motor 9 with a speed reducer, and the powder and granules accumulated in a starved state are moved by the rotary valve 5 and fall from the outlet 3.
今、ロータリフイーダ１内に粉粒体が全く溜つ
ていない状態で重量検出器１２が受ける重量を予
めビーム７のたわみから測定しておき、その重量
をWoとする。 Now, the weight received by the weight detector 12 in a state where no powder or granular material has accumulated in the rotary feeder 1 is measured in advance from the deflection of the beam 7, and this weight is designated as Wo.
ロータリフイーダ１内に粉粒体が飢餓状態で溜
つた場合の重量検出器１２が受ける重量を連続し
てビーム７のたわみから測定し、その重量をWa
とする。 The weight that the weight detector 12 receives when powder and granules accumulate in the rotary feeder 1 in a starved state is continuously measured from the deflection of the beam 7, and the weight is calculated as Wa
shall be.
重量検出器１２で検出した前記重量Woおよび
重量Waは電気式計算システム１０に入力され、
該電気式計算システム１４でロータリフイーダ１
内に溜つている粉粒体の重量ΔWをΔW＝Wa−
Woとして連続して算出する。 The weight Wo and weight Wa detected by the weight detector 12 are input into the electrical calculation system 10,
Rotary feeder 1 with the electrical calculation system 14
The weight ΔW of the powder and granular material accumulated in the interior is ΔW=Wa−
Continuously calculated as Wo.
ロータリフイーダ１のロータリバルブ５の羽根
は複数枚となつているため、ロータリバルブ５が
回転して粉粒体が移動してもロータリフイーダ１
内に溜つている粉粒体の重量ΔWは粉粒体流量に
比例する。この粉粒体の重量はロータリバルブ５
が１回転する間に排出する粉粒体の重量の１／Ｋ
（ここでＫ＞０、通常約２）と言い変えることが
できる。 Since the rotary valve 5 of the rotary feeder 1 has a plurality of blades, even if the rotary valve 5 rotates and the powder moves, the rotary feeder 1
The weight ΔW of the powder and granules accumulated inside is proportional to the flow rate of the powder and granules. The weight of this powder is rotary valve 5
1/K of the weight of powder discharged during one rotation of
(Here K>0, usually about 2).
一方、回転数検出器１３はロータリバルブ５の
単位時間当り回転数を連続して検出し、その回転
数Ｒが計算システム１４に入力される。そして計
算システム１４で粉粒体の重量ΔWとロータリフ
イーダの単位時間当り回転数Ｒより単位時間当り
の粉粒体流量ＦがＦ＝Ｋ×ΔW×Ｒ（ここでＫ＞
０、通常約２）として算出される。ところで、カ
ウンタウエイト８の重量は、ロータリフイーダ１
の重量よりロータリフイーダ１内に飢餓状態で溜
つた粉粒体の重量ΔWの約10倍だけ小さく設定さ
れているので、従つてWo≒10ΔWとなり、ΔW
のWoに対する比率は約1/10となる。この結果、
測定精度は極めて高い。 On the other hand, the rotation speed detector 13 continuously detects the rotation speed per unit time of the rotary valve 5, and the rotation speed R is inputted into the calculation system 14. Then, in the calculation system 14, the powder and granule flow rate F per unit time is calculated from the weight ΔW of the powder and the rotation speed R per unit time of the rotary feeder.F=K×ΔW×R (where K>
0, usually approximately 2). By the way, the weight of the counterweight 8 is the same as that of the rotary feeder 1.
Since the weight is set to be approximately 10 times smaller than the weight ΔW of the powder and granular material accumulated in the rotary feeder 1 in a starved state, therefore, Wo≒10ΔW, and ΔW
The ratio of this to Wo is approximately 1/10. As a result,
Measurement accuracy is extremely high.
また本考案によると整流部材２３が設けられて
いるので、粉粒体は、この整流部材によつて案内
されて放射状に伸びた回転羽根５と羽根５との間
のポケツトＰに落下する。したがつて羽根の先端
とケーシング４内壁との間の点Ｂにおいて粉粒体
が噛み込まれる割合は軽減される。すなわち整流
部材２３が設けられていないと、粉粒体は羽根全
体にわたつて略均一に供給されて、粉粒体が点Ｂ
において噛み込まれ、その衝撃が重量検出器１２
に悪影響を及ぼすが、整流部材２３が設けられて
いるので、この悪影響を受けることがない。その
態様を第３図および第４図によつて説明するが、
第３図に示すように整流部材が無いと、重量ΔW
にバラツキが生じ、その結果粉粒体流量重量Ｆ＝
Ｋ×ΔW×Ｒ（Ｋ＞０、通常約２）にもバラツキ
が生じ計量精度が落ちるが、整流部材２３が設け
られていると、第４図に示すように、精度が向上
する。 Further, according to the present invention, since the rectifying member 23 is provided, the powder particles are guided by the rectifying member and fall into the pocket P between the radially extending rotating blades 5. Therefore, the rate at which particulate matter is bitten at point B between the tip of the blade and the inner wall of the casing 4 is reduced. In other words, if the flow straightening member 23 is not provided, the powder or granules will be supplied almost uniformly over the entire blade, and the powder or granules will be delivered to point B.
The impact is transmitted to the weight detector 12.
However, since the rectifying member 23 is provided, this adverse effect does not occur. The mode will be explained with reference to FIGS. 3 and 4,
As shown in Figure 3, without the rectifying member, the weight ΔW
As a result, the powder flow rate weight F=
Although variations occur in K×ΔW×R (K>0, usually about 2) and the measurement accuracy decreases, if the rectifying member 23 is provided, the accuracy improves as shown in FIG. 4.
［まとめ］
以上詳述したように、本考案によると、揺動自
在の基体の上にロータリフイーダとカウンタとを
載置し、基体のロータリフイーダ側と不動部材と
の間に、重量検出器が設けられているので、従来
の装置に比較して簡単な構造で高い精度の粉粒体
の流量の計量を行うことができる。しかも整流部
材が設けられているので、粉粒体の噛み込みによ
る衝撃が緩和或いは減少されて、計量値の安定が
得られる。[Summary] As detailed above, according to the present invention, a rotary feeder and a counter are placed on a swingable base, and a weight detection device is installed between the rotary feeder side of the base and the immovable member. Since the device is provided with a device, the flow rate of powder and granular material can be measured with high precision with a simple structure compared to conventional devices. Moreover, since the rectifying member is provided, the impact caused by the biting of the powder or granules is alleviated or reduced, and the measured value becomes stable.
第１図および第２図は本考案の実施例を示し、
第１図は装置全体の斜視図、第２図はロータリフ
イーダ部分の拡大側断面図、第３図および第４図
は本考案によつて整流部材を設けた場合と設けな
い場合との効果上の差異を示す図である。
１……ロータリフイーダ、５……回転羽根（ロ
ータリバルブ）、６……支点（ベアリング）、７…
…基体（ビーム）、８……カウンタウエイト、１
２……重量検出器、１３……回転数検出器、１４
……計算システム。
1 and 2 show an embodiment of the present invention,
Fig. 1 is a perspective view of the entire device, Fig. 2 is an enlarged side sectional view of the rotary feeder portion, and Figs. 3 and 4 show the effects of the present invention with and without a rectifying member. It is a figure showing the difference above. 1... Rotary feeder, 5... Rotating vane (rotary valve), 6... Fulcrum (bearing), 7...
... Base body (beam), 8 ... Counterweight, 1
2... Weight detector, 13... Rotation speed detector, 14
...a calculation system.
Claims (1)
イーダと、該ロータリフイーダを駆動するモー
タ、伝導機構等を含んだカウンタウエイトと、
揺動可能に支承され、その一方端部に前記ロー
タリフイーダが、そして他方端部に前記カウン
タウエイトが載置される基体と、前記ロータリ
フイーダの回転羽根の回転数を検出する回転数
検出器と、前記基体と不動部材との間にもうけ
られていて前記基体の変位量から重量を検出す
る重量検出器と、前記回転数検出器及び重量検
出器でそれぞれ連続して検出された回転数信号
および重量信号が入力され、前記ロータリフイ
ーダ内に粉粒体が全く溜つていない状態の前記
重量検出器の検出値Woと、飢餓状態で溜つた
検出値Waとからロータリフイーダ内に溜つて
いる粉粒体の重量ΔW＝Wa−Woを求め、該粉
粒体の重量ΔWと前記回転数検出器で検出した
ロータリフイーダの単位時間当りの回転数Ｒと
から単位時間当りの粉粒体流量の重量Ｆ＝Ｋ×
ΔW×Ｒ（Ｋ＞０、通常約２）を求める計算シ
ステムとから成り、前記ロータリフイーダの供
給側には、回転羽根の回転方向に対向する方向
に粉粒体を案内する整流部材が設けられている
ことを特徴とする粉粒体流量の連続計量装置。 (2) 整流板が、ロータリフイーダと重量的に絶縁
するために供給側に設けられているフレキシブ
ル配管内に設けられている実用新案登録請求の
範囲の第１項記載の粉粒体流量の連続計量装
置。 (3) カウンタウエイトの重量が、ロータリフイー
ダの重量よりロータリフイーダ内に飢餓状態で
溜つた粉粒体の重量の所定倍だけ小さい、実用
新案登録請求の範囲の第１項又は第２項記載の
粉粒体流量の連続計量装置。[Claims for Utility Model Registration] (1) A rotary feeder having a plurality of rotating blades inside, a counterweight including a motor, a transmission mechanism, etc. for driving the rotary feeder,
A base body that is swingably supported and on which the rotary feeder is placed on one end and the counterweight on the other end, and a rotational speed detection that detects the rotational speed of the rotary blade of the rotary feeder. a weight detector that is provided between the base body and the immovable member and detects the weight from the amount of displacement of the base body, and a rotation number continuously detected by the rotation speed detector and the weight detector, respectively. A signal and a weight signal are input, and a detection value Wo of the weight detector in a state where no powder or granules has accumulated in the rotary feeder and a detection value Wa accumulated in a starvation state are detected in the rotary feeder. Calculate the weight ΔW=Wa−Wo of the accumulated powder and granular material, and calculate the powder per unit time from the weight ΔW of the powder and granular material and the rotation speed R per unit time of the rotary feeder detected by the rotation speed detector. Weight of particle flow rate F=K×
A calculation system for calculating ΔW×R (K>0, usually about 2) is provided on the supply side of the rotary feeder, and a flow regulating member is provided on the supply side of the rotary feeder to guide the powder and granular material in a direction opposite to the rotation direction of the rotary blade. A device for continuously measuring the flow rate of powder or granular material. (2) The flow rate of powder and granular material according to item 1 of the utility model registration claim, in which the rectifier plate is provided in a flexible piping provided on the supply side for weight insulation from the rotary feeder. Continuous weighing device. (3) Paragraph 1 or 2 of the utility model registration claim, wherein the weight of the counterweight is smaller than the weight of the rotary feeder by a predetermined times the weight of the powder and granular material accumulated in the rotary feeder in a starved state. The device for continuously measuring the flow rate of powder and granular material described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1368585U JPH0428031Y2 (en) | 1985-02-04 | 1985-02-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1368585U JPH0428031Y2 (en) | 1985-02-04 | 1985-02-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61131632U JPS61131632U (en) | 1986-08-16 |
| JPH0428031Y2 true JPH0428031Y2 (en) | 1992-07-07 |
Family
ID=30497919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1368585U Expired JPH0428031Y2 (en) | 1985-02-04 | 1985-02-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0428031Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019024412A (en) * | 2017-07-31 | 2019-02-21 | 貞幸 椛島 | Spraying apparatus and spray vehicle |
-
1985
- 1985-02-04 JP JP1368585U patent/JPH0428031Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019024412A (en) * | 2017-07-31 | 2019-02-21 | 貞幸 椛島 | Spraying apparatus and spray vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61131632U (en) | 1986-08-16 |
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