JPH0518871A - Constant amount material sampling at sampler of powder/ lump mixture material - Google Patents
Constant amount material sampling at sampler of powder/ lump mixture materialInfo
- Publication number
- JPH0518871A JPH0518871A JP19745391A JP19745391A JPH0518871A JP H0518871 A JPH0518871 A JP H0518871A JP 19745391 A JP19745391 A JP 19745391A JP 19745391 A JP19745391 A JP 19745391A JP H0518871 A JPH0518871 A JP H0518871A
- Authority
- JP
- Japan
- Prior art keywords
- sampler
- sampling
- amount
- belt conveyor
- powder
- 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
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】製鉄所等にて製鉄原料等の粉塊物
の粒度、化学成分等の品質を調査するため荷揚げされ、
ベルトコンベアにて輸送されている途中から試料採取用
サンプラ（以下サンプラと称する）によって試料を採取
している。試料の採取に際し、横行速度が一定のサンプ
ラを使用している試料採取装置の制御方法に関するもの
である。[Industrial field of application] Unloaded at iron mills to investigate the quality of powder lumps such as raw materials for iron making, chemical composition, etc.
Samples are collected by a sampler sampler (hereinafter referred to as sampler) while being transported by a belt conveyor. The present invention relates to a method for controlling a sampling device that uses a sampler having a constant transverse velocity when collecting a sample.
【０００２】[0002]
【従来の技術】図２はサンプラの側面図、図３は同じく
平面図であり、荷揚げされた粉塊混合物はベルトコンベ
ア１により貯蔵場まで輸送されるが、その途中の他のベ
ルトコンベア２への乗り継ぎ部に設置されているサンプ
ラにより試料を採取する。サンプラはインナーコンベア
５、サンプル搬送用ベルトコンベア４ 横行台車６より
なる。インナーコンベア５はＡ位置よりＢ位置へ横行台
車６により横行する時、正転しＢ位置からＡ位置へ戻っ
てくる時に逆転する。試料採取は正転にて行なう。横行
台車６の速度は一定である。2. Description of the Related Art FIG. 2 is a side view of a sampler, and FIG. 3 is a plan view of the same. The discharged lump mixture is transported to a storage area by a belt conveyor 1, but is transferred to another belt conveyor 2 on the way. Collect the sample by the sampler installed at the transit part of the. The sampler comprises an inner conveyor 5, a sample conveyor belt conveyor 4 and a traverse carriage 6. The inner conveyor 5 rotates forward when the traverse carriage 6 traverses from position A to position B, and reverses when returning from position B to position A. Sampling should be done in the normal direction. The speed of the traverse vehicle 6 is constant.
【０００３】[0003]
【発明が解決しようとする課題】サンプラの速度が一定
のため、メインベルトコンベアによって輸送される粉塊
混合物の重量の変動に対して対応できず、輸送量の増減
に応じて採取量も増減するため、採取量の変動が大きく
正確なサンプリングが困難である。Since the speed of the sampler is constant, it is not possible to cope with the fluctuation of the weight of the powder mass mixture transported by the main belt conveyor, and the sampling amount also increases / decreases as the transportation amount increases / decreases. Therefore, it is difficult to perform accurate sampling because the amount of sampling varies greatly.
【０００４】[0004]
【課題を解決するための手段】本発明は上記課題を解決
するものであって、粉塊混合物がベルトコンベアにて輸
送される途中のベルトコンベア乗り継ぎ部で試料採取用
サンプラを用いて試料を採取する際に、ベルトコンベア
に設置されている秤量機からの瞬間輸送量信号によりサ
ンプラの起動回数を定めると共に起動タイミングを指令
し、採取した試料の量を所定の誤差内に制御することを
特徴とする粉塊混合物試料採取用サンプラにおける試料
の定量採取方法である。Means for Solving the Problems The present invention is to solve the above problems, in which a sample is sampled using a sampler for sample collection at a belt conveyor connecting section during the transportation of a powdered mixture on a belt conveyor. At the time of performing, determine the number of times the sampler is started by the instantaneous transport amount signal from the weighing machine installed on the belt conveyor, command the start timing, and control the amount of the sample taken within a predetermined error. This is a method for quantitatively collecting a sample in a sampler for collecting a powdered lump mixture.
【０００５】[0005]
【作用】ベルトコンベアにより輸送される粉塊混合物の
量は部分的にみるとある範囲内で絶えず変動している。
本発明はこの点に着目したものであって、メインベルト
コンベア１に設置されている秤量機７から瞬間輸送量信
号を受信し、この信号を演算する。輸送量の大きい時は
サンプラの横行を１回とし、少ない時は２〜３回横行さ
せる。２〜３回横行運転する時はサンプル搬送用コンベ
ア４を停止し所定回数運転後に起動する。以上により試
料採取精度の向上を図るものであり、以下に本発明を詳
細に説明する。The amount of the lump mixture transported by the belt conveyor is constantly fluctuating within a certain range in part.
The present invention focuses on this point, and receives an instantaneous transportation amount signal from the weighing machine 7 installed on the main belt conveyor 1 and calculates this signal. When the amount of transportation is large, the sampler is traversed once, and when it is small, it is traversed 2-3 times. When carrying out the traverse operation 2-3 times, the sample carrying conveyor 4 is stopped and started after a predetermined number of operations. As described above, the accuracy of sampling is improved, and the present invention will be described in detail below.
【０００６】輸送量とサンプラの採取量との関係式は次
式で与えられる。 （Ｑ／３．６）×（Ｓ／Ｖ）＝ｑ ・・・ （１） ここに Ｑ：輸送量（ｔ／ｈｒ） Ｓ：サンプラの切り出し幅（ｍｍ） Ｖ：サンプラの横行速度（ｍｍ／ｓｅｃ） ｑ：試料採取量（ｋｇ）The relational expression between the transport amount and the sampler sampling amount is given by the following equation. (Q / 3.6) × (S / V) = q (1) Where: Q: Transport amount (t / hr) S: Sampler cutting width (mm) V: Sampler traverse speed (mm / sec) q: sampling amount (kg)
【０００７】Ｓ及びＶは一定であるので輸送量（Ｑ）が
変化すれば試料採取量（ｑ）も変化する。通常輸送量を
Ｑｉとすればサンプラの横行１回でｑｉの試料採取量と
なる。輸送量Ｑｉが１／２となれば試料採取量も１／２
となるのでサンプラを２回起動させれば所定の試料採取
量を得ることができる。Since S and V are constant, if the transportation amount (Q) changes, the sampling amount (q) also changes. Assuming that the normal transportation amount is Qi, the sampled amount is qi with one transverse movement of the sampler. If the transportation amount Qi is 1/2, the sampling amount is also 1/2
Therefore, if the sampler is activated twice, a predetermined sampling amount can be obtained.
【０００８】図３に示す粉塊混合物３の流れ幅をＷ 2と
すると、サンプラの横行時間は次式で与えられる。 Ｗ 2／Ｖ＝ｔ 2 ・・・・・・・・・・・ （２）When the flow width of the powder / lump mixture 3 shown in FIG. 3 is W 2 , the sampler traverse time is given by the following equation. W 2 / V = t 2・ ・ ・ ・ ・ ・ ・ ・ ・ ・ (2)
【０００９】時間ｔ 2の間の瞬間輸送量信号がたとえば
±１０％以内のとき、その瞬間輸送量信号に応じて起動
回数を演算すると共にサンプラの起動タイミングを指令
する。When the instantaneous transportation amount signal during the time t 2 is within ± 10%, for example, the number of times of activation is calculated according to the instantaneous transportation amount signal and the activation timing of the sampler is commanded.
【００１０】[0010]
【実施例】図１は本発明の実施例のフローチャートであ
る。メインベルトコンベアに設置されている秤量機から
のパルス信号で輸送重量に応じてインターバル指令を設
定し、インターバル指令が発信されるとその時の瞬間輸
送量信号を記憶し横行時間内の輸送量の変動をチェック
する。その変動幅が±１０％以内の場合はその瞬間輸送
量信号を輸送量に変換し（１）式にて採取量を演算す
る。1 is a flow chart of an embodiment of the present invention. A pulse signal from a weighing machine installed on the main belt conveyor sets an interval command according to the transport weight, and when the interval command is sent, the instantaneous transport amount signal at that time is stored and fluctuations in the transport amount during traverse time Check. When the fluctuation range is within ± 10%, the instantaneous transportation amount signal is converted into the transportation amount, and the sampling amount is calculated by the equation (1).
【００１１】 （Ｑｉ／３．６）×（Ｓ／Ｖ）＝ｑｉ ・・（３） ここに Ｑｉ：瞬間輸送量 ｑｉ：試料採取量(Qi / 3.6) × (S / V) = qi (3) where Qi: instantaneous transport amount qi: sampling amount
【００１２】これによりたとえばベルトコンベアの輸送
量が１０００ｔ／ｈｒのときサンプリングすれば１００
ｋｇ採取されるといった関係が出る。試料採取量の誤差
はたとえば±２０％以内と規定されているので、所定試
料採取量をｑｓとすると以下の関係式で表される。 ０．８ｑｓ≦ｑｉ≦１．２ｑｓ ・・・・ （４）As a result, for example, when sampling is carried out when the transport amount of the belt conveyor is 1000 t / hr, 100
There is a relationship such as kg being collected. Since the error of the sampling amount is specified to be within ± 20%, for example, when the predetermined sampling amount is qs, it is expressed by the following relational expression. 0.8qs ≦ qi ≦ 1.2qs (4)
【００１３】ｑｉの値が（４）式を満足すれば、そのイ
ンターバル指令時の試料採取回数が１回で完了し、次回
のインターバル指令を待つ。ｑｉの値が（４）式を満足
しない場合はｑｉとｑｓを比較し、２回目の採取を行な
うため以下の演算を行なう。 ｑｓ−ｑｉ＝ｑｄ ・・・・・・・・・ （５）If the value of qi satisfies the expression (4), the number of samplings at the time of the interval command is completed once, and the next interval command is waited for. When the value of qi does not satisfy the equation (4), qi and qs are compared, and the following calculation is performed to perform the second sampling. qs-qi = qd (5)
【００１４】ｑｄを採取するために一定時間後、瞬間輸
送量信号を受信する。即ち、 ０．８ｑｄ≦ｑｉ≦１．２ｑｄ ・・・・ （６） （６）式を（３）式に代入してｑｉ 2を求める。ｑｉ 2
を受信すればサンプラへの起動指令を発信する。After a certain amount of time to collect qd, an instantaneous traffic signal is received. That is, 0.8qd ≦ qi ≦ 1.2qd (6) Equation (6) is substituted into Equation (3) to obtain qi 2 . qi 2
If it receives, it sends a start command to the sampler.
【００１５】メインベルトコンベアに設置されている秤
量機からメインベルトコンベアヘッドまでの輸送時間は
秤量機からメインベルトコンベアヘッドまでの距離を
Ｌ、メインベルトコンベアの速度をＶ 0とすると、Ｌ／
Ｖ 0＝Ｔ 0で表される。When the distance from the weighing machine to the main belt conveyor head is L and the speed of the main belt conveyor is V 0 , the transportation time from the weighing machine installed on the main belt conveyor to the main belt conveyor head is L /
It is represented by V 0 = T 0 .
【００１６】インターバル指令発信後からメインベルト
コンベア秤量機の起動指令までの時間は以下のようにな
る。Ｗ 1／Ｖ＝ｔ 1（横行時間）、Ｗ 2／Ｖ＝ｔ 2（横
行時間）で横行時間は２ｔ1＋ｔ 2であるから、サンプ
ラの待機時間Ｔ（ｓｅｃ）（インターバル指令よりサン
プラ起動までの時間）は次式で表される。 Ｔ 0−（ｔ 1＋ｔ 2＋ベル吹鳴時間）＝ＴThe time from the transmission of the interval command to the start command of the main belt conveyor weighing machine is as follows. W 1 / V = t 1 (crossing time), W 2 / V = t 2 (crossing time), and the crossing time is 2t 1 + t 2 , so the sampler standby time T (sec) (from the interval command to the start of the sampler) Is expressed by the following equation. T 0 − (t 1 + t 2 + bell ringing time) = T
【００１７】２回目を運転する場合は、サンプラの待機
時間Ｔ 1（ｓｅｃ）は次式で表される。 （２ｔ 1＋ｔ 2）×２＋（２〜５）＝Ｔ 1 インターバル指令後Ｔ 1後に２回目の起動のための瞬間
輸送量信号をチェックしｑｉ 2がｔ 2秒間±１０％以内
であればサンプラへ起動指令を発信する。When operating the second time, the waiting time T 1 (sec) of the sampler is expressed by the following equation. (2t 1 + t 2 ) × 2 + (2-5) = T 1 After the T 1 interval command, the instantaneous transport amount signal for the second activation is checked after T 1 and if qi 2 is within ± 10% for t 2 seconds, the sampler Send a start command to.
【００１８】[0018]
【発明の効果】本発明によればベルトコンベアにより輸
送される粉塊混合物の量の部分的変動に着目し、秤量機
からの輸送量信号によりサンプラ採取回数、サンプラ起
動タイミングを判断して採取するので、採取量の変動を
一定範囲内に収めることができる。EFFECTS OF THE INVENTION According to the present invention, by paying attention to the partial fluctuation of the amount of the powder lump mixture transported by the belt conveyor, the sampler sampling frequency and the sampler start timing are judged by sampling based on the transportation amount signal from the weighing machine. Therefore, the variation of the collected amount can be kept within a certain range.
【図１】本発明の試料の定量採取方法の手順を示すフロ
ーチャートFIG. 1 is a flowchart showing the procedure of a method for quantitatively collecting a sample according to the present invention.
【図２】輸送用ベルトコンベア及びサンプラの側面図FIG. 2 is a side view of a transportation belt conveyor and a sampler.
【図３】輸送用ベルトコンベア及びサンプラの正面図FIG. 3 is a front view of a transportation belt conveyor and a sampler.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山本 幸政 千葉県君津市人見1462−２ 日鐵電設工業 株式会社内 (72)発明者 江口 邦雄 大阪市西区北堀江１−12−19 株式会社栗 本鐵工所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kosei Yamamoto 1462-2 Hitomi, Kimitsu City, Chiba Prefecture Nittetsu Electric Construction Co., Ltd. (72) Inventor Kunio Eguchi 1-12-19 Kitahori, Nishi-ku, Osaka Kuri Co. Inside the ironworks
Claims (1)
れる途中のベルトコンベア乗り継ぎ部で試料採取用サン
プラを用いて試料を採取する際に、ベルトコンベアに設
置されている秤量機からの瞬間輸送量信号によりサンプ
ラの起動回数を定めると共に起動タイミングを指令し、
採取した試料の量を所定の誤差内に制御することを特徴
とする粉塊混合物試料採取用サンプラにおける試料の定
量採取方法。Claims: 1. A powder lump mixture is installed on a belt conveyor when a sample is sampled using a sampler sampler at a transfer section of the belt conveyor during transportation. The number of times the sampler is started is determined by the instantaneous transportation amount signal from the weighing machine, and the start timing is commanded.
A method for quantitatively collecting a sample in a sampler for collecting a powder / lump mixture, comprising controlling the amount of the sample collected within a predetermined error.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19745391A JPH0518871A (en) | 1991-07-12 | 1991-07-12 | Constant amount material sampling at sampler of powder/ lump mixture material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19745391A JPH0518871A (en) | 1991-07-12 | 1991-07-12 | Constant amount material sampling at sampler of powder/ lump mixture material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0518871A true JPH0518871A (en) | 1993-01-26 |
Family
ID=16374765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19745391A Pending JPH0518871A (en) | 1991-07-12 | 1991-07-12 | Constant amount material sampling at sampler of powder/ lump mixture material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0518871A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424401A (en) * | 2015-09-18 | 2016-03-23 | 福耀集团通辽有限公司 | Float glass production line cold end glass sampler and application method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55113931A (en) * | 1979-02-26 | 1980-09-02 | Sumitomo Metal Ind Ltd | Method and device for automatically sampling fixed quantity |
| JPS58137734A (en) * | 1982-02-09 | 1983-08-16 | Kansai Coke & Chem Co Ltd | Apparatus for sampling powder and granule |
| JPH01254837A (en) * | 1988-04-04 | 1989-10-11 | Kawasaki Steel Corp | Speed control method for box sampler for sampling |
-
1991
- 1991-07-12 JP JP19745391A patent/JPH0518871A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55113931A (en) * | 1979-02-26 | 1980-09-02 | Sumitomo Metal Ind Ltd | Method and device for automatically sampling fixed quantity |
| JPS58137734A (en) * | 1982-02-09 | 1983-08-16 | Kansai Coke & Chem Co Ltd | Apparatus for sampling powder and granule |
| JPH01254837A (en) * | 1988-04-04 | 1989-10-11 | Kawasaki Steel Corp | Speed control method for box sampler for sampling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424401A (en) * | 2015-09-18 | 2016-03-23 | 福耀集团通辽有限公司 | Float glass production line cold end glass sampler and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19970408 |