JPS62298767A - Transfer speed measuring apparatus for bulk material - Google Patents

Transfer speed measuring apparatus for bulk material

Info

Publication number
JPS62298767A
JPS62298767A JP14169186A JP14169186A JPS62298767A JP S62298767 A JPS62298767 A JP S62298767A JP 14169186 A JP14169186 A JP 14169186A JP 14169186 A JP14169186 A JP 14169186A JP S62298767 A JPS62298767 A JP S62298767A
Authority
JP
Japan
Prior art keywords
powder
coil
sensors
bulk material
magnetic field
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14169186A
Other languages
Japanese (ja)
Inventor
Yuichi Fujioka
祐一 藤岡
Hiroshi Akiyama
寛 秋山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP14169186A priority Critical patent/JPS62298767A/en
Publication of JPS62298767A publication Critical patent/JPS62298767A/en
Pending legal-status Critical Current

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  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

PURPOSE:To determine the speed of bulk material, by providing two sensors in which a fixed voltage is applied to a first coil while detecting changes in the magnetic field with a second coil, at a specified interval along the flow of the bulk material to determine a delay time between signals with the same waveform. CONSTITUTION:Magnetic field change sensors 8a and 8b are mounted on the outside of a transfer tube 3 of bulk material at a specified interval. The change sensors 8a and 8b drive primary coils 14a and 14b with constant voltage generators 15a and 15b. Voltmeters or ammeters 17a and 17b are connected to secondary coils 16a and 16b connected electromagnetically and produces an output to a flow controller 10. A delay time between the same waveforms appearing in the change sensors 8a and 8b is determined to obtain a moving speed of bulk material from a distance between the sensors 8a and 8b by computation. This enables measurement without contacting the bulk material thereby minimizing the troubles of the sensors. This also facilitates the mounting and removal of the sensors.

Description

【発明の詳細な説明】 3、発明の詳細な説明 (産業上の利用分野) 本発明は粉粒体の移送速度計測装置の改良に関するもの
である。
Detailed Description of the Invention 3. Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an improvement of a device for measuring the transport speed of powder or granular material.

(従来の技術) 従来の粉粒体上定量に供給し計測するには、第4図に示
す如く、ホラ/! −1)内に粉体a1を供給し、ホッ
パーbは枠Cに保持されている。又ホッノ+−bと枠c
とuホラzf −1)の上下のエキスフ9ンゾ、ンdl
sd2により互いに力を加えずに自由に動くように保持
されている。ホッパーb内に供給された粉体130重量
の増減はロードセルeで計量される。粉体alの重量の
減少量が一定になるようにロードセル内で計量された重
量をもとに制御装置fによジロータリーフィーダーgの
回転数が制御され、粉体a2は粉体搬送装置りへ送られ
る。ホラi4  %内の粉体a8の量が減らすと粉体&
1が供給される。粉体alがホッパーb内に供給されて
いる時間中はロードセルeによつて粉体a3の重量減少
量が計測できないため、ロータリーフィーダーgの回転
数によってホッノf −1)から送出される粉体al量
を制御することが出来ないものであった。
(Prior art) In order to quantitatively supply and measure a conventional powder or granular material, as shown in FIG. -1) Powder a1 is supplied into the hopper b, which is held in the frame C. Also, Honno +-b and frame c
and u hora zf -1) upper and lower exf 9nzo, ndl
They are held by sd2 so that they can move freely without applying force to each other. An increase or decrease in the weight of the powder 130 supplied into the hopper b is measured by a load cell e. The rotation speed of the rotary feeder g is controlled by the control device f based on the weight measured in the load cell so that the amount of decrease in the weight of the powder a2 is constant, and the powder a2 is transferred to the powder conveying device. sent to. Hora i4 When the amount of powder a8 in % decreases, powder &
1 is supplied. While the powder al is being fed into the hopper b, the weight loss of the powder a3 cannot be measured by the load cell e, so the powder fed from the hopper f-1) is determined by the rotational speed of the rotary feeder g. It was not possible to control the amount of al.

(発明が解決しようとする問題点) 従来の粉粒体を供給して移送量を計測するには、第4図
に示す如くホッノ! −1)内の粉体&zが減少して、
新規の粉体a1をホラ・9−b内に供給する際ハ、ホラ
/#−11の重量変動のためロードセル・により粉体a
、の重量の増減を検出することが出来な−。従りて粉体
11をホッパーb内に供給している時間中は粉体a、か
ら粉体搬送装置りへの粉体a3への送出量を一定に制御
することが出来ないという欠点があった。
(Problems to be Solved by the Invention) In order to supply conventional powder and granular material and measure the amount of transfer, as shown in FIG. -1) The powder &z in
When feeding a new powder a1 into the conch #9-b, due to the weight fluctuation of the conch/#-11, the powder a is removed by the load cell.
It is not possible to detect an increase or decrease in the weight of . Therefore, while the powder 11 is being supplied into the hopper b, there is a drawback that the amount of powder a to the powder conveying device cannot be controlled at a constant level. Ta.

また粉体搬送装置りの型式については、例えばインセク
ターを使用した場合等は、搬送先の圧力変動がホッパー
b内に伝播しロードセル・の重量指示値を変動させるた
め粉体1sへの送出量の定量精度に悪影響を及ばすとい
う欠点があった。
Regarding the type of powder conveyance device, for example, when using an insector, pressure fluctuations at the conveyance destination propagate into hopper b and change the weight indication value of the load cell. The disadvantage was that it had a negative effect on the quantitative accuracy.

(問題点を解決するための手段) 本発明は下記の囚)及び(B)を組合せた粉粒体の移送
速度計測装置である。
(Means for Solving the Problems) The present invention is a powder transport speed measuring device that combines the following (a) and (B).

(ホ) 移行管に充てんされた粉体を、その管内底部に
導入する気体により流動化させることによりて粉体をピ
ストンフローで流下させるようにした。
(e) The powder filled in the transfer tube is fluidized by gas introduced into the bottom of the tube, so that the powder flows down in a piston flow.

粉体の送出量は導入する気体せにて調整する。The amount of powder delivered is adjusted depending on the gas introduced.

(B)  粉体中の磁性体の含有量の局部的な変動を検
出するため磁性体が磁場を通過する場合に発生する磁場
の変動を既知の距離だけ離した複数の場所で検出し、そ
れらの計測器の信号のずれ時間から粉体の移送速度を検
出して粉体の移動量を測定する。その移動量が一定とな
るように移送管内に導入する気体景を調整する。
(B) To detect local fluctuations in the content of magnetic material in powder, the fluctuations in the magnetic field that occur when a magnetic material passes through a magnetic field are detected at multiple locations separated by a known distance, and the The amount of powder movement is measured by detecting the powder transfer speed from the time difference of the signal of the measuring instrument. The gas atmosphere introduced into the transfer pipe is adjusted so that the amount of movement is constant.

(作用) 上記(A)により垂直の移行管内をピストンフローで粉
体を流下させて移動させること及びその移動速度を変化
させる。また上記釦により移動速度を正確に検知できる
ようになり移動速度を設定値に精度よく制御させること
が出来る。
(Function) According to the above (A), the powder is caused to flow down and move in the vertical transition pipe with a piston flow, and the moving speed is changed. Further, the movement speed can be accurately detected by using the button, and the movement speed can be accurately controlled to a set value.

(実施例) 第1図に示を如くホッノ9−1の上部に粉体供給管2及
び下部に移行管3を取付ける。移行管3の下端には気体
供給管4を連結し、該晋の途中にはガス分散板5が嵌着
されている。又ガス分散板5の上部に、移行管3の側部
を開口せしめ、該開口部に逆V字形管6の1端を取付け
る。
(Example) As shown in FIG. 1, a powder supply pipe 2 and a transfer pipe 3 are attached to the upper part and the lower part of the hook 9-1, respectively. A gas supply pipe 4 is connected to the lower end of the transition pipe 3, and a gas distribution plate 5 is fitted in the middle of the pipe. Further, the side of the transition pipe 3 is opened at the upper part of the gas distribution plate 5, and one end of the inverted V-shaped pipe 6 is attached to the opening.

逆■字形管6の他端には粉体搬送装置7を設けるために
開口している・ 而して粉粒体の移送速度を計測するための磁場変化セン
サー8m、8bが上記逆V字形管6の上方にして、且つ
移行管3の外周に環装されている。
The other end of the inverted V-shaped tube 6 is opened to install a powder conveying device 7. Magnetic field change sensors 8m and 8b for measuring the transfer speed of powder and granules are connected to the inverted V-shaped tube. 6 and is ringed around the outer periphery of the transition pipe 3.

この磁気変化センサー#a 、 (8b )は第3図に
示す如く移行管3に第1のコイル14 m (14b 
)が環装されており、このコイル14m(14b)の両
端に定電圧発生装置75&(75b)を結線し、また該
コイルJ4a(J4b)の巻線の間に第2のコイル16
IL(16b)が移行管3に環装されており、このコイ
ルJ6a(J6b)の両端に電流計又は電圧計171 
(17b )が結線している。
This magnetic change sensor #a (8b) is connected to a first coil 14 m (14 b
) is connected in a ring, a constant voltage generator 75 & (75b) is connected to both ends of this coil 14m (14b), and a second coil 16 is connected between the windings of the coil J4a (J4b).
An IL (16b) is attached to the transition pipe 3, and an ammeter or voltmeter 171 is installed at both ends of this coil J6a (J6b).
(17b) is connected.

又電流針又は電圧計1ya(Jyb)はリード線9 m
 (9b )で流量制御器10に結線されている。
Also, the current needle or voltmeter 1ya (Jyb) has a lead wire of 9 m.
(9b) is connected to the flow rate controller 10.

又この磁気変化センサー#a、8bにはリード線9a(
9b)の1端が結線されている、このリード線91(9
b)の他端には流量制御器10に結線され、流量制御器
1θからのリード線11は流量調整弁12を介して気体
供給管4に結線されている。
Also, lead wires 9a (
This lead wire 91 (9b) is connected to one end of the lead wire 91 (9b).
b) The other end is connected to a flow rate controller 10, and a lead wire 11 from the flow rate controller 1θ is connected to the gas supply pipe 4 via a flow rate regulating valve 12.

而して粉体19mはホッパー1内に粉体供給管2を経て
連続的或は断続的に供給する。ホッパー1内の粉体13
bは、ガス分散板5によって移行管3の下部に導入され
る。即ち気体供給管4から移行管3の底部に導入される
気体によって移行管3の下方内部の粉体13eと逆V字
形管6内にある粉体13dとが流動化されるため粉体す
は移行管3内を流し流動状態となり粉体14 a (J
4d)の如く逆V字形管6を経て粉体搬送装置17へ移
送される。即ち移行管3の底部と逆V字形v6内の粉体
13(:、(13d)が流動化されると粉体13(2(
z、yd)との管壁間の摩擦力が小さくなり、移行管3
の内壁と移行管3内の粉体13cとの摩擦力よりも粉体
13bの持つ重力ヘッドが大きくなるため粉体13eと
なって移行管3内を流下する。
The powder 19m is continuously or intermittently supplied into the hopper 1 through the powder supply pipe 2. Powder 13 in hopper 1
b is introduced into the lower part of the transition tube 3 by the gas distribution plate 5. That is, the powder 13e inside the lower part of the transition tube 3 and the powder 13d inside the inverted V-shaped tube 6 are fluidized by the gas introduced into the bottom of the transition tube 3 from the gas supply tube 4, so that the powder is The powder 14 a (J
4d), the powder is transferred to the powder conveying device 17 via the inverted V-shaped tube 6. That is, when the powder 13(:, (13d)) in the bottom of the transfer tube 3 and the inverted V-shape v6 is fluidized, the powder 13(2()
z, yd) becomes smaller, and the transition pipe 3
Since the gravitational head of the powder 13b becomes larger than the frictional force between the inner wall of the powder and the powder 13c in the transfer tube 3, the powder 13b becomes powder 13e and flows down in the transfer tube 3.

6一 なお、移行管3の底部に導入する気体量と移行管3を流
下して粉体搬送装置7へ移送される粉体閂との関係は第
2図に示す如くである。
6. The relationship between the amount of gas introduced into the bottom of the transfer tube 3 and the powder bolt flowing down the transfer tube 3 and transferred to the powder conveying device 7 is as shown in FIG.

第2図の如く気体の流量と粉体の移送量とが比例する区
間を粉体の送出量の制御範囲として使用する。
As shown in FIG. 2, the area where the gas flow rate and the powder transfer amount are proportional is used as the control range for the powder delivery amount.

而して本発明は移行管s内をピストンフローで流下する
粉体13eの移送速度を計測するものであるが該粉体1
3c中に含まれる磁性体量は局部的に変動があるため第
1図に示す如く移行管3の上方に粉体13e中に含まれ
る磁性体の量の変化を検出する磁気変化センサーgm(
8b)を取付け、定電圧発生装置J5a(J5b)によ
シ第1のコイル141(14b)に定電圧を負荷し磁場
を発生させる。移行管3内の粉体13eに含まれる磁性
体が第1のコイル14m(14b)Kより発生した磁場
を通過するため、該コイル14a(14b)によシ発生
した磁場が変動し、第2のコイル16h(16b)に電
流または電圧が生ずる。このコイル16h(16b)の
電流または電圧の変動を電流計または電圧it17 a
 (17b )で検知して下記用(1)式及び第(2)
弐によ如粉体13cの移動速度及び移動量を求めるもの
である。
Accordingly, the present invention measures the transfer speed of the powder 13e flowing down in the transition pipe s with a piston flow.
Since the amount of magnetic material contained in powder 3c varies locally, a magnetic change sensor gm (
8b) is attached, and a constant voltage is applied to the first coil 141 (14b) by the constant voltage generator J5a (J5b) to generate a magnetic field. Since the magnetic material contained in the powder 13e in the transfer tube 3 passes through the magnetic field generated by the first coil 14m (14b)K, the magnetic field generated by the coil 14a (14b) fluctuates, and the second A current or voltage is generated in the coil 16h (16b). Changes in the current or voltage of this coil 16h (16b) can be measured with an ammeter or voltage it17a
(17b) and the following equation (1) and (2)
The speed and amount of movement of the powder 13c are determined by the second method.

粉体の移動量=管内断面積×粉体の移動速度×粉体のか
さ比重          ・・<2)なお磁場センサ
ー8m(8b)で測定された粉体13eの移動量がその
設定値からずれている場合には、流量制御器10の作用
で流i調整弁12により気体の量を制御して移行管3内
の粉体13cの移動量を増減せしめて粉体13dを定量
的に粉体搬送装置7へ移送することができる。
Amount of movement of the powder = cross-sectional area in the pipe x speed of movement of the powder x bulk specific gravity of the powder...<2) Note that the amount of movement of the powder 13e measured by the magnetic field sensor 8m (8b) deviates from its set value. When the powder 13d is transferred quantitatively, the amount of gas is controlled by the flow i adjustment valve 12 under the action of the flow rate controller 10 to increase or decrease the amount of movement of the powder 13c in the transfer pipe 3. It can be transferred to the device 7.

又粉体搬送装置7から伝わる圧力変動は粉体130の磁
性体含有率に影響を及ぼさないので定量供給の妨害因子
とはならない。
In addition, pressure fluctuations transmitted from the powder conveying device 7 do not affect the magnetic substance content of the powder 130, and therefore do not become a factor interfering with quantitative supply.

又本発明装置において逆V字形管を取付けた理由は、粉
体13c及び粉体13dの流動化を向上せしめるためで
ある。
Furthermore, the reason why the inverted V-shaped tube is installed in the apparatus of the present invention is to improve the fluidization of the powder 13c and the powder 13d.

(効果) 以上詳述した如く本発明装置によれば移行管内の粉体の
移動は、磁場の変化を利用するため、センサーを移行管
の外周Ill装することができ、移動する粉体とは非接
触状態にて計測することができる。従ってセンサーの故
障は極めて少いと共にその取付は或は取シ外しの操作が
極めて簡単であり且つ取りつけ状態を容易に目視するこ
とが出来る。
(Effects) As detailed above, according to the device of the present invention, the movement of powder in the transfer tube utilizes changes in the magnetic field, so sensors can be mounted around the outer circumference of the transfer tube, and the moving powder can be Measurement can be performed without contact. Therefore, failures of the sensor are extremely rare, the operation of attaching or removing the sensor is extremely simple, and the attached state can be easily checked visually.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明装置を粉体の定量供給装置に取付けた1
例を示す断面図、第2図は気体の流量と粉体の移送量と
の関係線図、第3図は本発明粉粒体の移送速度計測装置
を移送管に取付けた状態の説明図、第4図は従来の粉体
の移送速度計測装置を取付けた粉粒体の定量供給装置の
断面図である。 1・・・ホッパー、2・・・粉体供給管、3・・・移行
管、4・・・気体供給管、5・・・ガス分散板、6・・
・逆V字形管、7・・・粉体搬送装置、8*、Ilb・
・・磁場変化センサー、9m、9b・・・リード線、1
0・・・流量制御器、11・・・リード線、12・・・
流量調整弁、13a。 J J b e 13e # I J d・・・粉体、
141L、14b・・・第1コイル、15m、15b・
・・定電圧発生装置、16m 、 16b・・・第2コ
イル、17th、17b・・・電流計又は電圧計。
Figure 1 shows the device of the present invention attached to a powder quantitative supply device.
A sectional view showing an example, FIG. 2 is a relationship diagram between the gas flow rate and the amount of powder transferred, and FIG. 3 is an explanatory diagram of the powder transfer speed measuring device of the present invention attached to a transfer pipe. FIG. 4 is a cross-sectional view of a quantitative supply device for powder and granular material equipped with a conventional powder transfer speed measuring device. DESCRIPTION OF SYMBOLS 1... Hopper, 2... Powder supply pipe, 3... Transition pipe, 4... Gas supply pipe, 5... Gas distribution plate, 6...
・Inverted V-shaped pipe, 7...Powder conveyance device, 8*, Ilb・
...Magnetic field change sensor, 9m, 9b...Lead wire, 1
0...Flow rate controller, 11...Lead wire, 12...
Flow rate adjustment valve, 13a. J J b e 13e # I J d...Powder,
141L, 14b... 1st coil, 15m, 15b...
... Constant voltage generator, 16m, 16b... Second coil, 17th, 17b... Ammeter or voltmeter.

Claims (1)

【特許請求の範囲】[Claims] 粉粒体の移送管に環装された第1のコイル該第1のコイ
ルに定電圧を送る定電圧発生器、前記第1のコイルの巻
線の間に環装された第2のコイル及び該第2のコイルの
起電力を求めて信号として発する信号発生器とからなる
磁場変化センサーを粉粒体移送方向に沿って一定間隔で
少くとも二箇所配置し、前記夫々の磁場変化センサーか
らの信号の同形信号の時間遅れを求めて同時間遅れと前
記夫々の磁場変化センサーの間隔とから前記粉粒体の移
送速度を求める演算式とからなる粉粒体の移送速度計測
装置。
a first coil encircled in a powder transfer pipe; a constant voltage generator that sends a constant voltage to the first coil; a second coil encircled between the windings of the first coil; A magnetic field change sensor consisting of a signal generator that determines the electromotive force of the second coil and emits it as a signal is arranged at at least two locations at regular intervals along the powder transport direction, and A device for measuring the transport speed of a powder or granular material, comprising an arithmetic expression for determining a time delay of signals having the same shape, and calculating a transport speed of the powder or granular material from the same time delay and the interval between the respective magnetic field change sensors.
JP14169186A 1986-06-18 1986-06-18 Transfer speed measuring apparatus for bulk material Pending JPS62298767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14169186A JPS62298767A (en) 1986-06-18 1986-06-18 Transfer speed measuring apparatus for bulk material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14169186A JPS62298767A (en) 1986-06-18 1986-06-18 Transfer speed measuring apparatus for bulk material

Publications (1)

Publication Number Publication Date
JPS62298767A true JPS62298767A (en) 1987-12-25

Family

ID=15297974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14169186A Pending JPS62298767A (en) 1986-06-18 1986-06-18 Transfer speed measuring apparatus for bulk material

Country Status (1)

Country Link
JP (1) JPS62298767A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705450A1 (en) * 1993-05-15 1994-11-25 Amepa Eng Gmbh Device for measuring a flow.
DE102010040717A1 (en) * 2010-09-14 2012-04-19 Basf Se Method and device for determining the flow velocity by means of oriented magnetic particles and their use

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705450A1 (en) * 1993-05-15 1994-11-25 Amepa Eng Gmbh Device for measuring a flow.
DE102010040717A1 (en) * 2010-09-14 2012-04-19 Basf Se Method and device for determining the flow velocity by means of oriented magnetic particles and their use
WO2012034874A3 (en) * 2010-09-14 2012-08-16 Siemens Aktiengesellschaft Method and device for determining the flow rate by means of oriented ferromagnetic particles and use thereof

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