JPH01150635A - Control device for simultaneous intermittent discharge of two hoppers - Google Patents
Control device for simultaneous intermittent discharge of two hoppersInfo
- Publication number
- JPH01150635A JPH01150635A JP62308927A JP30892787A JPH01150635A JP H01150635 A JPH01150635 A JP H01150635A JP 62308927 A JP62308927 A JP 62308927A JP 30892787 A JP30892787 A JP 30892787A JP H01150635 A JPH01150635 A JP H01150635A
- Authority
- JP
- Japan
- Prior art keywords
- intermittent discharge
- value
- weight
- volumetric capacity
- cutting
- 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
- 238000005303 weighing Methods 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims description 23
- 230000009977 dual effect Effects 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 12
- 239000010419 fine particle Substances 0.000 abstract 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000011812 mixed powder Substances 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 238000012937 correction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、２台のホッパー手段より１台の受入れタンク
手段に粉体を同時に切り出す際の制御装置の改善に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a control device for simultaneously cutting powder from two hopper means into one receiving tank means.
（従来の技術）
鉄鋼プラントなどにおいて、受入タンクを形成する吹き
込みタンクに２台のホッパー内の粉体原料を計算機で設
定された一定重量ずつ切り出す要求がある。(Prior Art) In steel plants and the like, there is a demand for cutting powder raw materials in two hoppers into a blowing tank forming a receiving tank into pieces of constant weight set by a computer.
第４図に基づいてこの様な要求に対する従来技術の一例
を説明する。１．２は夫々粉体Ａ、Ｂが′収納された第
１．第２上部ホッパー手段、３，４は夫々に設けられた
秤量機、５．６は夫々の粉体を切り出すためのロータリ
ーバルブ、７は第１゜第２上部ホッパーから切り出され
る粉体を受け入れる吹き込み用受入れタンク、８はこの
受入タンクに設けられた秤量機である。An example of a conventional technique for meeting such a request will be explained based on FIG. 1.2 is the 1st. 2nd upper hopper means, 3 and 4 are weighing machines provided respectively, 5 and 6 are rotary valves for cutting out the respective powders, and 7 is a blower for receiving the powders cut out from the first and second upper hoppers. A receiving tank 8 is a weighing machine installed in this receiving tank.
（発明が解決しようとする問題点）
この様な構成において、２つの上部ホッパー手段から粉
体Ａ、Ｂを同時に受入タンクに切り出す場合、上部ホッ
パー手段には図示のようにそれぞれに秤量機が必要であ
り、コスト的に問題がある。(Problem to be Solved by the Invention) In such a configuration, when powders A and B are simultaneously cut out from the two upper hopper means into the receiving tank, each of the upper hopper means requires a weighing machine as shown in the figure. This poses a problem in terms of cost.
また、受入タンク７側のみに秤量機８を設け、粉体Ａと
粉体Ｂを時系列的に個別に切り出せば秤量機は１台で済
むが、切り出しに時間を要する問題がある。Further, if the weighing machine 8 is provided only on the side of the receiving tank 7 and the powder A and the powder B are individually cut out in chronological order, only one weighing machine is required, but there is a problem in that it takes time to cut out the powder.
更に、計算機のトラブルなどでオペレータが手動で切出
量を設定する場合には、誤って大きい値が設定されてい
ると、受入タンクの容量が上部ホッパー手段の容量に比
較して小さい場合には、受入タンクの容量をオーバーし
、設備停止につながる危険がある。Furthermore, if the operator manually sets the cutout amount due to computer trouble, if a large value is set by mistake, the capacity of the receiving tank may be small compared to the capacity of the upper hopper means. , there is a risk that the capacity of the receiving tank will be exceeded, leading to equipment stoppage.
本発明は、この様な問題点を解消できる同時切り出し制
御装置の提供を目的とする。An object of the present invention is to provide a simultaneous extraction control device that can solve these problems.
（問題点を解決するための手段）
本発明の構成上の特徴は、夫々に貯蔵された粉体がロー
タリーバルブにより切り出される第１゜第２上部ホッパ
ー手段と、切り出された各粉体を受け入れると共に秤量
機を備えた受入タンク手段と、上記第１．第２上部ホッ
パーの粉体の切り出し重量設定値の比率に基づいて上記
第１．第２上部ホッパーの各ロータリーバルブの回転数
を比率制御する切り出し制御手段と、上記秤量機の重量
測定値が上記各切り出し重量設定値の和に等しくなった
ときに切り出しを停止させるバッチ制御手段と、上記各
切り出し重量設定値、各粉体の嵩比重設定値並びに上記
受入タンク手段の容積設定値に基づいて上記受入タンク
手段の容量オーバーを演算１表示する警報手段とを具備
した点にある。(Means for Solving the Problems) The structural features of the present invention include first and second upper hopper means from which stored powder is cut out by a rotary valve, and which receive each cut out powder. and a receiving tank means having a weighing machine; Based on the ratio of the powder cutting weight setting value of the second upper hopper, the above-mentioned first. a cutting control means for ratio-controlling the rotational speed of each rotary valve of the second upper hopper; and a batch control means for stopping cutting when the weight measurement value of the weighing machine becomes equal to the sum of the respective cutting weight setting values. and an alarm means for calculating and displaying an overcapacity of the receiving tank means based on the set value of each cutting weight, the set value of the bulk specific gravity of each powder, and the set value of the volume of the receiving tank means.
（作用）
切り出し制御手段は、第１．第２上部ホッパーの粉体の
切り出し重量設定値の比率に基づいて第１、第２上部ホ
ッパーの各ロータリーバルブの回転数を比率制御する。(Function) The cutout control means is the first. The rotational speed of each rotary valve of the first and second upper hoppers is controlled in a ratio based on the ratio of the cut-out weight setting value of the powder of the second upper hopper.
バッチ制御手段は、切り出しを開始し、受入タンク手段
に設けた秤量機の重量測定値が各切り出し重量設定値の
和に等しくなったときに切り出しを停止させる。The batch control means starts the cutting and stops the cutting when the weight measured by the weighing machine provided in the receiving tank means becomes equal to the sum of the respective cutting weight settings.
警報手段は、各切り出し重！設定値、各粉体の嵩比重設
定値並びに受入タンク手段の容積設定値データに基づい
て受入タンク手段の容量オーバーを演算、警報する。The alarm means is each cut-out weight! Based on the set value, bulk specific gravity set value of each powder, and volume set value data of the receiving tank means, an overcapacity of the receiving tank means is calculated and an alarm is issued.
（実施例） 第１図に基づいて本発明の詳細な説明する。(Example) The present invention will be explained in detail based on FIG.
第１図で説明した要素と同一要素には同一符号を付して
説明を省略し、本発明の特徴部についての説明を追加す
る。Elements that are the same as those described in FIG. 1 are given the same reference numerals, and their explanations are omitted, and a description of the features of the present invention will be added.
Ｆはフィールド設備側、ＤＯ３は制御装置側、ＰＬＯは
電気設備側を示す。フィールド設備側において、９は回
転制御装置であり、操作出力Ｍａを入力してロータリー
バルブ５を回転操作する。F indicates the field equipment side, DO3 indicates the control device side, and PLO indicates the electrical equipment side. On the field equipment side, 9 is a rotation control device, which inputs the operation output Ma and rotates the rotary valve 5.
１０はロータリーバルブ５の回転数センサーであり、Ｓ
ａは回転数測定値である。10 is a rotation speed sensor of the rotary valve 5, and S
a is the rotational speed measurement value.
１１は９と同様な回転制御装置であり、操作出力Ｍｂを
入力してロータリーバルブ６を回転操作する。１２はロ
ータリーバルブ６の回転数センサーであり、ｓｂは回転
数測定値である。11 is a rotation control device similar to 9, which inputs the operation output Mb and rotates the rotary valve 6. 12 is a rotation speed sensor of the rotary valve 6, and sb is a rotation speed measurement value.
ＷＯは受入タンク７に設けられた秤量機８の測定値であ
り、第１．第２タンク内の混合粉体の重量測定値信号で
ある。WO is the measured value of the weighing machine 8 installed in the receiving tank 7; It is a weight measurement value signal of the mixed powder in the second tank.
制御装置、電気設備側において、１３．１４は第１．第
２重量設定器であり、Ｗａ 、Ｗｂは計算機またはオペ
レータにより夫々に設定される粉体Ａ、Ｂの重量設定値
である。これら設定値は、ＢＣＤ変換器１５によりバイ
ナリコード変換されて電気設備側におけるロータリーバ
ルブ比率制御演算回路１６に入力されると共に加算器１
７で加算され、加算設定値Ｗｓとしてバッチ調節計１８
に切り出し重量設定値を与える。On the control device and electrical equipment side, 13.14 is the first. This is a second weight setting device, and Wa and Wb are weight setting values for powders A and B, respectively, set by a computer or an operator. These setting values are converted into binary codes by a BCD converter 15 and input to a rotary valve ratio control calculation circuit 16 on the electrical equipment side, and an adder 1
7, and the batch controller 18 is added as the addition setting value Ws.
Give the cutout weight setting value to .
１９は重量・圧力補正演算回路であり、受入タンクの秤
量機８の測定信号ＷＯに対して受入タンクの圧力信号Ｐ
並びに混合粉体嵩比重信号γｆによる補正演算を実行し
て、補正された重量測定値ＷＯ°をバッチ調節計１８に
供給する。Reference numeral 19 denotes a weight/pressure correction calculation circuit, which calculates the pressure signal P of the receiving tank with respect to the measurement signal WO of the weighing machine 8 of the receiving tank.
In addition, a correction calculation is performed using the mixed powder bulk specific gravity signal γf, and the corrected weight measurement value WO° is supplied to the batch controller 18.
バッチ調節計１８は、オペレータ操作によるブツシュボ
タンスイッチ２０による切り出し開始指令ＳＴ、を入力
するとバッチ信号ＢＳ、プリバッチ信号ＢＰを比率演算
制御回路１６に発信して切り出し制御を実行する。When the batch controller 18 receives a cutting start command ST from the button switch 20 operated by the operator, it sends a batch signal BS and a pre-batch signal BP to the ratio calculation control circuit 16 to execute cutting control.
比率演算制御回路１６は設定値Ｗａ 、Ｗｂの比率を演
算し、この比率に対応した操作出力Ｍａ。The ratio calculation control circuit 16 calculates the ratio of the set values Wa and Wb, and outputs the operation output Ma corresponding to this ratio.
Ｍｂを、回転数測定値Ｓａ 、Ｓｂをアンサーバック信
号としてフィードバックを受けながら各回転制御装置９
，１１に発信する。Each rotation control device 9 receives feedback from Mb, rotation speed measurement value Sa, and Sb as an answer back signal.
, 11.
比率演算制御回路１６は、バッチ信号ＢＳの立ち上がり
からプリバッチ信号ＰＢの受信までは高速の切り出しを
可能とする操作出力を発信し、ブリバッチ信号ＰＢの受
信からバッチ信号ＢＳのオフまでは低速切り出しを可能
とする操作出力を発信する。The ratio calculation control circuit 16 transmits an operation output that enables high-speed extraction from the rise of the batch signal BS to the reception of the pre-batch signal PB, and enables low-speed extraction from the reception of the pre-batch signal PB to the turn-off of the batch signal BS. Transmits the operation output.
２１．２２は、第１．第２嵩比重設定器であり、夫々粉
体Ａ、Ｂの嵩比重 γａ、γｂが固定値として設定され
る。２３は容積設定器であり、受入タンク７の容量値■
が同様に固定値として設定される。21.22 is the first. This is a second bulk specific gravity setting device, and the bulk specific gravity γa and γb of powders A and B, respectively, are set as fixed values. 23 is a volume setting device, which determines the capacity value of the receiving tank 7■
is similarly set as a fixed value.
２４は混合粉体の比重・容積演算回路であり、第１．第
２重量設定器の重量設定値ｗａ 、ｗｂ、嵩比重設定値
γａ、γｂ、容積設定値■を入力し、オペレータ操作に
よるブツシュボタンスイッチ２５の演算指菩モより混合
粉体の嵩比重γｆを演算して重量・圧力補正演算回路１
９に発信すると共に、演算された混合粉体の容積が受入
タンクの容積設定値をオーバーするときは、警報回路２
６を起動して設定ミスをオペレータに警報する。24 is a specific gravity/volume calculation circuit for mixed powder; Input the weight set values wa, wb, bulk specific gravity set values γa, γb, and volume set value ■ of the second weight setting device, and calculate the bulk specific gravity γf of the mixed powder using the calculation finger of the button switch 25 by operator operation. Weight/pressure correction calculation circuit 1
9, and if the calculated volume of the mixed powder exceeds the set volume of the receiving tank, the alarm circuit 2
6 to alert the operator of a setting error.
第２図のフローチャート図にしたがって信号処理の手順
を説明する。先ず、第１．第２重量設定器により粉体Ａ
、Ｂの重量が設定された後、固定情報の設定を指令する
ブツシュボタンスイッチ２５が操作され、演算回路２４
により混合粉体の嵩比重の演算が実行される
嵩比重γｆは、
ｒｆ ＝ｒａ ・ｒｂ （Ｗａ ＋Ｗｂ ） ／（Ｗ
ａ −ｒｂ ＋Ｗｂ −ｒａ ） （１）で計
算される。さらに、混合粉体の容積が、混合粉体容積＝
（Ｗａ ＋Ｗｂ ） ／γｆ＝ （ｗａ Ｈ？”ｂ
＋Ｗｂ ・７ａ ） ／γａ・ｒｂ
（２）
で計算される。この計算値に余裕係数αが加算されたも
のと受入タンクの容積設定値Ｖが比較され、タンク容積
を上回る場合は異状警報をオペレータガイドとして発信
する。The signal processing procedure will be explained according to the flowchart shown in FIG. First of all, number 1. Powder A is measured by the second weight setting device.
, B is set, the button switch 25 for instructing the setting of fixed information is operated, and the arithmetic circuit 24
The bulk specific gravity γf for which the bulk specific gravity of the mixed powder is calculated is rf = ra ・rb (Wa + Wb) / (W
a − rb + Wb − ra ) (1). Furthermore, the volume of the mixed powder is mixed powder volume =
(Wa + Wb) /γf= (wa H?”b
+Wb・7a) /γa・rb
(2) Calculated as follows. This calculated value plus the allowance coefficient α is compared with the volume setting value V of the receiving tank, and if it exceeds the tank volume, an abnormality alarm is issued as an operator guide.
計算容積＋αがＶを越えなければ切り出し開始のブツシ
ュボタンスイッチ２０によるバッチスタート指令により
切り出しのバッチ制御が実行される。If the calculated volume +α does not exceed V, batch control of cutting is executed by a batch start command from the button switch 20 for starting cutting.
電気設備ＰＬＣ側において、粉体の切り出し量はロータ
リーバルブの回転数にほぼ比例することから、粉＃Ａ側
のロータリーバルブ５の回転数を固定しておき、設定値
の比率演算Ｗ ａ ／ Ｗ ｂにより粉＃％Ｂ側のロー
タリーバルブ６の回転数を変更する操作を行う。On the electrical equipment PLC side, since the amount of powder cut out is almost proportional to the rotation speed of the rotary valve, the rotation speed of the rotary valve 5 on the powder #A side is fixed, and the ratio calculation of the set value W a / W The operation of changing the rotation speed of the rotary valve 6 on the powder #%B side is performed by b.
ブリバッチ信号による高速、低速運転の切換えは、ロー
タリーバルブにブレーキが付属している場合には、プリ
バッチによる低速運転への切換えは不要となる。Switching between high-speed and low-speed operation using a pre-batch signal does not require switching to low-speed operation using a pre-batch signal if a brake is attached to the rotary valve.
第１図の実施例では、電気設備側にロータリーバルブの
制御回路を設けた構成を示したが、第３図のように、制
御装置ＤＣ３側に回転数調節計２６．２７及び切り出し
置設定値Ｗａ 、Ｗｂを回転数Ｎａ 、Ｎｂに変換する
関数演算器２８．２９を設けて調節計２６．２７に設定
し、各調節計の操作出力により回転制御装置９．１１を
操作する構成をとってもよい。In the embodiment shown in FIG. 1, the control circuit of the rotary valve is provided on the electrical equipment side, but as shown in FIG. A configuration may also be adopted in which a function calculator 28.29 for converting Wa and Wb into rotational speeds Na and Nb is provided and set in the controller 26.27, and the rotation control device 9.11 is operated by the operation output of each controller. .
（発明の効果）
以上説明したように、本発明によれば、次のような効果
を期待することができる。(Effects of the Invention) As explained above, according to the present invention, the following effects can be expected.
■同時切り出しは、２つの上部ホッパー手段からの同時
運転、同時停止を基本としているために、受入タンク側
の秤量機１台による制御が実行でき、設備費の削減とタ
イムスケジュールの短縮を図る事ができる。■Simultaneous cutting is based on simultaneous operation and simultaneous stop from two upper hopper means, so it can be controlled by a single weighing machine on the receiving tank side, reducing equipment costs and time schedules. Can be done.
■切り出し開始前に、切出し設定量が妥当か否かのチｒ
ニックができ、設備のトラブルを防止することができる
。■Before starting cutting, check whether the cutting setting amount is appropriate or not.
This prevents equipment troubles.
第１図は本発明の実施例を示す構成図、第２図はその動
作手順を示すフローチャート図、第３図は本発明の他の
実施例を示す主要部の構成図、第４図は従来技術の一例
を示す構成図である６１．２・・・第１．第２上部ホッ
パー手段 ５．６・・・ロータリーバルブ ７・・
・受入タンク ８・・・秤量機 ９．１１・・・回
転制御装置 １０．１２・・・回転センサー １３
．１４・・・第１．第２重量設定器 １５・・・ＢＣ
Ｄ変換器 １６・・・比率演算・制御回路 １７・
・・加算器 １８・・・バッチ調節計 １９・・・
重量・圧力補正演算回路２１．２２・・・第１．第２嵩
比重設定器 ２３・・・容積設定器 ２６・・・警
報回路
代理人 弁理士 小 沢 信 世グ
第 ３ 図
第 ４ し１Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a flowchart showing its operating procedure, Fig. 3 is a block diagram of main parts showing another embodiment of the present invention, and Fig. 4 is a conventional 61.2, which is a configuration diagram showing an example of the technology, 1st. Second upper hopper means 5.6 Rotary valve 7...
・Receiving tank 8... Weighing machine 9.11... Rotation control device 10.12... Rotation sensor 13
．． 14... 1st. Second weight setting device 15...BC
D converter 16...Ratio calculation/control circuit 17.
...Adder 18...Batch controller 19...
Weight/pressure correction calculation circuit 21.22...1st. Second bulk specific gravity setter 23...Volume setter 26...Alarm circuit agent Patent attorney Nobuo Ozawa Nobuyo Ozawa Figure 3 Figure 4 Shi1
Claims (1)
される第１、第２上部ホッパー手段と、切り出された各
粉体を受け入れると共に秤量機を備えた受入タンク手段
と、上記第１、第２上部ホッパーの粉体の切り出し重量
設定値の比率に基づいて上記第１、第２上部ホッパーの
各ロータリーバルブの回転数を比率制御する切り出し制
御手段と、上記秤量機の重量測定値が上記各切り出し重
量設定値の和に等しくなったときに切り出しを停止させ
るバッチ制御手段と、上記各切り出し重量設定値、各粉
体の嵩比重設定値並びに上記入タンク手段の容積設定値
に基づいて上記受入タンク手段の容量オーバーを演算、
表示する警報手段とよりなる２機ホッパー同時切り出し
制御装置。First and second upper hopper means from which the stored powder is cut out by a rotary valve, a receiving tank means which receives each cut out powder and is equipped with a weighing machine, and the first and second upper hoppers. a cutting control means for ratio-controlling the rotational speed of each rotary valve of the first and second upper hoppers based on a ratio of powder cutting weight settings; batch control means for stopping the cutting when the value is equal to the sum of the values; Calculate capacity over,
A dual hopper simultaneous cutting control device consisting of a display warning means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62308927A JP2508542B2 (en) | 1987-12-07 | 1987-12-07 | Two-machine hopper-simultaneous cutting control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62308927A JP2508542B2 (en) | 1987-12-07 | 1987-12-07 | Two-machine hopper-simultaneous cutting control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01150635A true JPH01150635A (en) | 1989-06-13 |
| JP2508542B2 JP2508542B2 (en) | 1996-06-19 |
Family
ID=17986953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62308927A Expired - Lifetime JP2508542B2 (en) | 1987-12-07 | 1987-12-07 | Two-machine hopper-simultaneous cutting control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2508542B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53143759U (en) * | 1977-04-18 | 1978-11-13 | ||
| JPS58203801A (en) * | 1982-05-21 | 1983-11-28 | ニュ−ロング株式会社 | Supply system to bagging device of mixed powdered and granular body and its device |
| JPS5982936A (en) * | 1982-11-02 | 1984-05-14 | Matsui Seisakusho:Kk | Weight measurement type compounding and mixing device for granule |
-
1987
- 1987-12-07 JP JP62308927A patent/JP2508542B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53143759U (en) * | 1977-04-18 | 1978-11-13 | ||
| JPS58203801A (en) * | 1982-05-21 | 1983-11-28 | ニュ−ロング株式会社 | Supply system to bagging device of mixed powdered and granular body and its device |
| JPS5982936A (en) * | 1982-11-02 | 1984-05-14 | Matsui Seisakusho:Kk | Weight measurement type compounding and mixing device for granule |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2508542B2 (en) | 1996-06-19 |
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