JPH0213926Y2 - - Google Patents
Info
- Publication number
- JPH0213926Y2 JPH0213926Y2 JP1231884U JP1231884U JPH0213926Y2 JP H0213926 Y2 JPH0213926 Y2 JP H0213926Y2 JP 1231884 U JP1231884 U JP 1231884U JP 1231884 U JP1231884 U JP 1231884U JP H0213926 Y2 JPH0213926 Y2 JP H0213926Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotating shaft
- air slide
- flow rate
- measuring device
- shaft
- 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
- 239000000463 material Substances 0.000 claims description 23
- 238000005259 measurement Methods 0.000 claims description 5
- 239000008187 granular material Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000032258 transport Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
- Air Transport Of Granular Materials (AREA)
Description
【考案の詳細な説明】
本考案は、粉粒体を流動状態で輸送するエアス
ライドの流量を測定する装置に関する。[Detailed Description of the Invention] The present invention relates to a device for measuring the flow rate of an air slide that transports powder or granular material in a fluidized state.
一般に粉粒体を取扱うプロセスプラントでは、
粉粒体の流量を測定することが容易でなく、原料
の受入量と製品の船積量または袋詰量などからこ
れを推算したり、貯蔵タンクの空寸を検尺するこ
とから推定したり、粉粒体を輸送する工程におい
ては、例えばバケツトエレベータの電流値等によ
つて間接的に判断がなされているにすぎなかつ
た。 Generally, in process plants that handle powder and granular materials,
It is not easy to measure the flow rate of powder or granular materials, and it is difficult to estimate it from the amount of raw materials received and the amount of products shipped or packed in bags, or by measuring the empty size of the storage tank. In the process of transporting powder and granular materials, judgments have only been made indirectly based on, for example, the current value of the bucket elevator.
本考案者は、このような粉粒体を取扱うプロセ
スプラントにおいて多用されているエアスライド
が安定的な粉粒体輸送路であることに着目し、エ
アスライドの流量を測定することにより粉粒体の
プロセスプラントを計数的に管理することを検討
し、本考案を完成するに至つた。 The inventor of the present invention focused on the fact that air slides, which are often used in process plants that handle powder and granular materials, are stable transportation routes for powder and granular materials, and by measuring the flow rate of the air slide, The authors studied the numerical management of process plants and came up with the present invention.
エアスライドは、断面が箱型をなす緩傾斜の密
閉したトラフ状の輸送路をキヤンバス等の透気性
板体で上下に区分し、この透気性板体下方に圧縮
空気を供給し、この透気性板体の上方の粉粒体を
流動状態で傾斜方向に輸送する輸送機である。 The air slide is a gently sloped, closed, box-shaped transport channel divided into upper and lower parts by an air-permeable plate such as a canvas, and compressed air is supplied below the air-permeable plate. This is a transport machine that transports powder and granules above a plate in a fluid state in an inclined direction.
本考案は、エアスライドの流量を簡易に測定す
ることのできる流量計を提供せんとするもので、
エアスライドの輸送量を把握し、プロセスプラン
トの合理的運営に寄与することを目的とするもの
である。 The present invention aims to provide a flowmeter that can easily measure the flow rate of an air slide.
The purpose is to understand the transport volume of air slides and contribute to the rational operation of process plants.
以下図面によつて本考案の実施例を詳細に説明
する。 Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は本考案の装置の全体図を示すエアスラ
イドの側面図で、第２図はそのＡ−Ａ矢視、第３
図はそのＢ−Ｂ矢視図である。 Fig. 1 is a side view of the air slide showing the overall view of the device of the present invention, and Fig. 2 is a side view of the air slide showing the overall view of the device of the present invention.
The figure is a view taken along the line B-B.
エアスライド１は、キヤンバス２等によつて上
下に仕切られ、空気室３と流送物通路４とに分離
されている。流送物５は流動状態をなし、高さＨ
で矢印６方向に流動移動する。 The air slide 1 is partitioned into an upper and lower part by a canvas 2 and the like, and is separated into an air chamber 3 and a conveyance passage 4. The flowed material 5 is in a fluid state and has a height H
to move in the direction of arrow 6.
本考案のエアスライドの流量測定装置は、流送
物の流動速度を検出する回転速度発信機を備えた
流速測定装置１０と、一枚の抵抗板の回動角度を
測定する高さ測定装置２０とを組み合わせて構成
されている。 The air slide flow rate measurement device of the present invention includes a flow rate measurement device 10 equipped with a rotational speed transmitter that detects the flow rate of the conveyed material, and a height measurement device 20 that measures the rotation angle of a single resistance plate. It is composed of a combination of.
流速測定装置１０は、エアスライド１の流送物
通路４の上方に、流送物５の進行方向６に直交す
る回転軸１１を水平に架設し、この回転軸１１に
複数枚の羽根１２を半径方向に固着している。羽
根１２は、エアスライドの流送物５の通路４中に
流送物の流送断面中に十分に埋設される位置に設
けられ、流送物５の移動と共に移動し、この羽根
１２の移動によつて回転軸１１が矢印１３方向に
回転する。羽根１２は、流送物５によつて連続的
に回転軸１１を回転させるように、例えば６〜８
枚が設けられる。この回転軸は、流動用の空気に
よつて回転することはない。 The flow velocity measurement device 10 has a rotating shaft 11 horizontally installed above the transported material passage 4 of the air slide 1 and perpendicular to the traveling direction 6 of the transported material 5, and a plurality of blades 12 are attached to the rotating shaft 11. Fixed in the radial direction. The vane 12 is provided in the passage 4 of the air slide for the transported material 5 at a position where it is sufficiently embedded in the flow cross section of the transported material, and moves with the movement of the transported material 5. As a result, the rotating shaft 11 rotates in the direction of the arrow 13. The number of blades 12 is, for example, 6 to 8, so that the rotating shaft 11 is continuously rotated by the conveyed material 5.
A number of sheets are provided. This rotating shaft is not rotated by the flowing air.
回転軸１１の軸端には円形のスリツト板１４が
取付けられ、このスリツト板を挟んで回転速度発
信機１５が装着され、この回転速度発信機が回転
軸１１の回転速度を検出する。 A circular slit plate 14 is attached to the shaft end of the rotating shaft 11, and a rotational speed transmitter 15 is mounted across the slit plate, and this rotational speed transmitter detects the rotational speed of the rotating shaft 11.
回転軸１１の回転速度と流送物５の平均流動速
度とは、流送物５の層厚に応じて一定の相関関係
があり、この相関関係は、エアスライドの大き
さ、傾斜、流送物の種類、流速測定装置１０の寸
法、位置等の諸元が決まれば確定することができ
る。 There is a certain correlation between the rotational speed of the rotating shaft 11 and the average flow velocity of the transported material 5 depending on the layer thickness of the transported material 5, and this correlation depends on the size of the air slide, the inclination, and the flow Once the specifications such as the type of object, dimensions, and position of the flow rate measuring device 10 are determined, it can be determined.
次に、高さ測定装置２０は、前記流速測定装置
の近傍に前記回転軸１１と平行に架設された回動
軸２１に一枚の抵抗板２２を吊下して構成され
る。抵抗板２２は流送物通路４内の流送物５中に
十分に埋設されるように吊下され、流送物５によ
つて押し上げられ、抵抗板２２の先端が流送物５
の上表面位置７まで回動軸２１と共に矢印２３方
向に回動する。 Next, the height measuring device 20 is constructed by suspending one resistance plate 22 from a rotating shaft 21 installed parallel to the rotating shaft 11 near the flow rate measuring device. The resistance plate 22 is suspended so as to be fully buried in the flowed material 5 in the flowed material passage 4, and is pushed up by the flowed material 5, so that the tip of the resistance plate 22 is suspended from the flowed material 5.
It rotates in the direction of the arrow 23 along with the rotation shaft 21 to the upper surface position 7.
回動軸２１の軸端には、回動軸２１の回動角度
を検出する角度発信機２４が取り付けられてい
る。この角度発信機２４の検出角度は、流送物５
の流動高さＨと一定の関係にある。 An angle transmitter 24 that detects the rotation angle of the rotation shaft 21 is attached to the shaft end of the rotation shaft 21 . The detected angle of this angle transmitter 24 is
There is a constant relationship with the flow height H.
速度発信機１５と角度発信機２４の測定値は図
示しない演算器に入力される。この入力は相乗演
算され、流送物５の流量と一定の関係にある計測
量として出力される。この計測量は、当該エアス
ライドの検定流量の測定値と較正することによつ
て流送物の流量値に換算され、図示しない表示装
置、記録装置等に出力される。 Measured values from the speed transmitter 15 and the angle transmitter 24 are input to an arithmetic unit (not shown). This input is multiplicatively calculated and output as a measured quantity having a constant relationship with the flow rate of the transported material 5. This measured amount is converted into a flow rate value of the transported material by calibrating it with the measured value of the certified flow rate of the air slide, and is output to a display device, a recording device, etc. (not shown).
本考案のエアスライド流量計の実施例とその効
果を次に示す。流速測定装置は羽根として厚さ
1.6mm、幅150mmの鋼板６枚をキヤンバスとの間隔
が15mmになるように取り付け、高さ測定装置は抵
抗板として厚さ1.6mm、幅150mmの鋼板１枚をキヤ
ンバスとの間隔が15mmになるように設定した本考
案の実施例をポルトランドセメントの製品輸送ラ
インの断面幅300mm×高さ300mm（流送物室高さ
200mm）のエアスライドに適用した。この実施例
によれば、広範な流量域において、誤差±１％以
内でセメントの流量を測定することができた。 Examples of the air slide flowmeter of the present invention and their effects are shown below. The flow velocity measuring device measures the thickness as a vane.
Six steel plates, each 1.6 mm thick and 150 mm wide, are installed so that the distance from the canvas is 15 mm, and the height measuring device is used as a resistance plate, with one steel plate 1.6 mm thick and 150 mm wide, and the distance from the canvas is 15 mm. The cross-sectional width of a portland cement product transportation line is 300 mm x height 300 mm (the height of the conveyed material chamber is 300 mm).
200mm) air slide. According to this example, the cement flow rate could be measured within a wide range of flow rates with an error of ±1%.
なお、エアスライドはキヤンバスの破損、異物
の混入等によりエアスライドの詰り事故を起こす
場合があるが、本考案の流速測定装置のみを単独
で詰り検出にも用いることができる。また同じ用
途に高さ測定装置が単独で用いられることは知ら
れている。 Note that air slides can sometimes become clogged due to damage to the canvas, foreign matter, etc., but the flow rate measuring device of the present invention can be used alone to detect clogs. It is also known that height measuring devices can be used alone for the same purpose.
第１図は本考案の装置の全体図を示すエアスラ
イドの側面図、第２図はそのＡ−Ａ矢視図、第３
図はそのＢ−Ｂ矢視図である。
１……エアスライド、２……キヤンバス、３…
…空気室、４……流送物通路、５……流送物、６
……流送物の流動方向矢印、７……流送物の上表
面、１０……流速測定装置、１１……回転軸、１
２……羽根、１３……回転方向矢印、１４……ス
リツト板、１５……回転速度発信機、２０……高
さ測定装置、２１……回動軸、２２……抵抗板、
２３……回動方向矢印。
Fig. 1 is a side view of the air slide showing the overall view of the device of the present invention, Fig. 2 is a view taken along arrow A-A, and Fig.
The figure is a view taken along the line B-B. 1...Air slide, 2...Canvas, 3...
...Air chamber, 4...Transfer passage, 5...Transfer material, 6
...Flow direction arrow of the transported material, 7... Upper surface of the transported material, 10... Flow velocity measuring device, 11... Rotation shaft, 1
2...Blade, 13...Rotation direction arrow, 14...Slit plate, 15...Rotation speed transmitter, 20...Height measuring device, 21...Rotation axis, 22...Resistance plate,
23...Rotation direction arrow.
Claims (1)
方向と直交する回転軸を水平に架設し、この軸に
流送物断面中に十分埋設される複数枚の羽根を半
径方向に固着し、該軸の回転速度により流送物の
流動速度を検出する回転速度発信機を備えた流速
測定装置と、上記回転軸と平行な別の回転軸を架
設し、流送物中に十分埋設される１枚の抵抗板を
該回転軸に半径方向に固着し、流送物の厚さを該
回転軸の回動角度により検出する角度発信機を備
えた高さ測定装置とを組み合わせてなるエアスラ
イドの流量測定装置。 A rotating shaft perpendicular to the transport direction is installed horizontally above the transport passage of the air slide, and a plurality of blades, which are sufficiently embedded in the cross section of the transport material, are fixed to this shaft in the radial direction. A flow velocity measurement device equipped with a rotational speed transmitter that detects the flow rate of the transported material based on the rotational speed of the shaft, and another rotating shaft parallel to the above-mentioned rotational axis are installed, and are sufficiently embedded in the transported material. An air slide consisting of a resistance plate fixed in the radial direction to the rotating shaft, and a height measuring device equipped with an angle transmitter that detects the thickness of the transported object based on the rotation angle of the rotating shaft. flow measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1231884U JPS60125527U (en) | 1984-02-02 | 1984-02-02 | Air slide flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1231884U JPS60125527U (en) | 1984-02-02 | 1984-02-02 | Air slide flow measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60125527U JPS60125527U (en) | 1985-08-23 |
| JPH0213926Y2 true JPH0213926Y2 (en) | 1990-04-17 |
Family
ID=30495265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1231884U Granted JPS60125527U (en) | 1984-02-02 | 1984-02-02 | Air slide flow measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60125527U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7139968B2 (en) * | 2019-01-22 | 2022-09-21 | 日本製鉄株式会社 | Flowmeter |
-
1984
- 1984-02-02 JP JP1231884U patent/JPS60125527U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60125527U (en) | 1985-08-23 |
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