JPS63165602A - Control of aggregate material supply apparatus of asphalt plant - Google Patents
Control of aggregate material supply apparatus of asphalt plantInfo
- Publication number
- JPS63165602A JPS63165602A JP31096086A JP31096086A JPS63165602A JP S63165602 A JPS63165602 A JP S63165602A JP 31096086 A JP31096086 A JP 31096086A JP 31096086 A JP31096086 A JP 31096086A JP S63165602 A JPS63165602 A JP S63165602A
- Authority
- JP
- Japan
- Prior art keywords
- aggregate
- amount
- supply
- pull
- belt conveyor
- 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
- 239000010426 asphalt Substances 0.000 title claims description 16
- 239000000463 material Substances 0.000 title description 3
- 239000000203 mixture Substances 0.000 claims description 13
- 230000001186 cumulative effect Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 210000000988 bone and bone Anatomy 0.000 claims 1
- 238000005303 weighing Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Road Paving Machines (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、道路舗装材であるアスファルト合材を製造す
るアスファルトプラントにおいて、各種粒径別に骨材を
貯蔵する複数の骨材ホッパより所望の配合に応じて骨材
を切り出し、骨材加熱装置であるドライヤに供給する装
置の制御方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is used in an asphalt plant that manufactures asphalt mixture, which is a road paving material. The present invention relates to a method of controlling a device that cuts out aggregate according to the requirements and supplies it to a dryer that is an aggregate heating device.
従来技術
アスファルトプラントの骨材供給装置は、第１図のよう
に各種粒径別に骨材を貯蔵する複数の骨材ホッパ１ａｘ
ｌｅ、可変速モーターによって骨材切り出し量を増減調
整できるフィーダー２ａ〜２ｅ、切り出された骨材を搬
送する引出しベルトコンベヤ３、及び搬送される骨材量
をロードセル４で検出し、骨材加熱装置であるドライヤ
５に供給する計量コンベヤ６で構成されている。As shown in FIG. 1, an aggregate supply device for a conventional asphalt plant has a plurality of aggregate hoppers 1ax that store aggregate according to various particle sizes.
le, feeders 2a to 2e that can increase or decrease the amount of aggregate cut out using a variable speed motor, a pull-out belt conveyor 3 that conveys the cut out aggregate, and a load cell 4 that detects the amount of aggregate to be conveyed, and an aggregate heating device. It is composed of a weighing conveyor 6 that supplies a dryer 5.
従来の骨材供給装置制御は、出荷するアスファルト合材
の種類、配合に応じて各骨材ホッパｌａ〜１ｅのフィー
ダー２ａ〜２ｅの切り出し速度がプラント操作盤の記憶
部に予め登録されており、出荷開始によって出荷予約さ
れたアスファルト合材の種類、配合に応じて所定の骨材
ホッパから所定割合で骨材が切り出され、そして骨材の
供給停止は、計量コンベヤによって搬送される骨材量を
計量積算し、操作盤上に表示される積算トン数をオペレ
ーターが監視し、出荷トン数に見合った骨材を供給した
と判断した時点で手動にて骨材供給停止スイッチを押す
ことにより行っている。In conventional aggregate supply device control, the cutting speeds of the feeders 2a to 2e of each aggregate hopper la to 1e are registered in advance in the storage section of the plant operation panel according to the type and composition of the asphalt mixture to be shipped. When shipment starts, aggregate is cut out at a predetermined rate from a predetermined aggregate hopper according to the type and composition of asphalt mix reserved for shipment, and when aggregate supply is stopped, the amount of aggregate transported by the weighing conveyor is cut out. The operator monitors the cumulative tonnage displayed on the operation panel and manually presses the aggregate supply stop switch when determining that aggregate has been supplied in accordance with the shipping tonnage. There is.
発明が解決しようとする問題点
従来のように、操作盤上に表示される積算トン数が出荷
トン数に見合った量になったと判断した時点でオペレー
ターが手動にて骨材の供給を停止する場合には、引出し
ベルトコンベヤ３−ヒに切り出されて積載されている骨
材量（以下「残留骨材量ｊという）は余分なものとなり
、出荷完了後もプラント本体の貯蔵ビンに残っている。Problems to be solved by the invention As in the past, the operator manually stops the supply of aggregate when it is determined that the accumulated tonnage displayed on the operation panel has reached the amount commensurate with the shipping tonnage. In this case, the amount of aggregate cut out and loaded on the pull-out belt conveyor 3-H (hereinafter referred to as "residual aggregate amount j") becomes surplus and remains in the storage bin of the plant body even after shipping is completed. .
したがって、次の出荷までに時間を要する場合には貯蔵
ビン内の骨材は温度が低下してしまうおそれがあってア
スファルト合材の品１管理上問題がある。更に、貯蔵ビ
ン内の骨材の温度が低下しすぎた時、或いは一日の出荷
が完了した時には貯蔵ビン内の骨材を抜き取る必要があ
り、この時には残留分が多いほど手間を要するものであ
る。Therefore, if it takes a long time before the next shipment, the temperature of the aggregate in the storage bin may drop, which poses a problem in terms of product management of asphalt mixture. Furthermore, when the temperature of the aggregate in the storage bin becomes too low or when shipping for one day is completed, it is necessary to remove the aggregate in the storage bin, and at this time, the more residue there is, the more time and effort it takes. be.
問題点を解決するための手段
本発明は上記の点に鑑みたもので、残留骨材量も考慮し
たうえで出荷トン数に見合った骨材量を過不足なしに骨
材ホッパから切り出し、貯蔵ビンには余分な骨材を極力
貯蔵しないようにしようとするものであり、即ち、本発
明は、各種粒径別に骨材を貯蔵する複数の骨材ホッパよ
り切り出された骨材を搬送する引出しベルトコンベヤと
、搬送される骨材量を計量し、骨材加熱装置であるドラ
イヤに供給する計量コンベヤとより成るアスファルトプ
ラントの骨材供給装置において、出荷予約されたアスフ
ァルト合材の種類、配合に応じて所定の骨材ホッパより
引出しベルトコンベヤ上に切り出されて搬送される骨材
量を計量コンベヤで計量積算し、該骨材積算トン数≧Ｗ
ｘ −Ｗ ｈ −Ｗ ｔ（Ｗｘは出荷予約された出荷
トン数、Ｗｈは骨材供給停止命令発信時引出しベルトコ
ンベヤ上に積載されている残留骨材量、Ｗｔは骨材供給
停止命令発信時から各骨材ホッパの切り出し停止までに
切り出される骨材量）となれば骨材供給停止命令を発信
し、順次骨材の切り出し停止を行うことによって、出荷
トン数に見合った骨材量を過不足なしに供給することが
できるアスファルトプラントの骨材供給装置制御方法を
提供するにある。Means for Solving the Problems The present invention was developed in view of the above points, and it is possible to cut out the amount of aggregate commensurate with the shipping tonnage from the aggregate hopper without too much or too little, and store it, taking into account the amount of remaining aggregate. The purpose of the present invention is to avoid storing excess aggregate in the bin as much as possible. That is, the present invention provides a drawer for transporting aggregate cut out from a plurality of aggregate hoppers that store aggregate according to various particle sizes. In the aggregate supply system of an asphalt plant, which consists of a belt conveyor and a measuring conveyor that measures the amount of aggregate to be conveyed and supplies it to the dryer, which is an aggregate heating device, the type and composition of the asphalt mixture scheduled for shipment is Accordingly, the amount of aggregate cut out from a predetermined aggregate hopper and conveyed onto a pull-out belt conveyor is weighed and integrated using a weighing conveyor, and the cumulative tonnage of aggregate is ≧W.
x - W h - W t (Wx is the shipping tonnage reserved for shipment, Wh is the amount of residual aggregate loaded on the pull-out belt conveyor when the order to stop aggregate supply is issued, Wt is when the order to stop aggregate supply is issued When the amount of aggregate that is cut out from the time when each aggregate hopper stops cutting is reached (the amount of aggregate cut from An object of the present invention is to provide a method for controlling an aggregate supply device for an asphalt plant that can supply aggregate without shortage.
実施例
第２図は骨材供給状況を示すものであるが、この図のよ
うに各骨材ホッパ１ａ−１ｅからの骨材の切り出しは、
プラント操作盤に出荷予約されたアスファルト合材の種
類、配合に応じ予め記憶部に登録された所定の骨材ホッ
パから所定割合で一定の時間遅れ（Ｔｌ〜Ｔ８）をもっ
て骨材径の小さいものより順次開始されるのが一般的で
ある。Embodiment FIG. 2 shows the aggregate supply situation, and as shown in this figure, the cutting of aggregate from each aggregate hopper 1a-1e is as follows:
Depending on the type and composition of the asphalt mix reserved for shipment on the plant operation panel, the aggregate hopper registered in advance in the memory unit is loaded at a predetermined rate with a certain time delay (Tl to T8) than aggregates with smaller diameters. Generally, they are started sequentially.
これはドライヤ５における各骨材の滞留時間を考慮した
もので、骨材に応じてそれぞれ切出しタイム（Ｔｌ〜Ｔ
８）が予め設定されている。そして、骨材切り出し開始
と同じ時間遅れで順次骨材の切り出し停止を行っている
。したがって、骨材供給停止命令発信後、引出しベルト
コンベヤ３上に積載されている残留骨材量（正確には引
出しベルトコンベヤ３上と計量コンベヤ６の計量位置ま
でに積載される骨材量）と、各骨材ホッパ１ａ〜１ｅの
切り出し停止までに切り出される骨材量とを加算した量
が供給されることとなる。This takes into consideration the residence time of each aggregate in the dryer 5, and the cutting time (Tl to T
8) is set in advance. Then, cutting out of aggregate is sequentially stopped with the same time delay as the start of cutting out aggregate. Therefore, after issuing the aggregate supply stop command, the amount of residual aggregate loaded on the pull-out belt conveyor 3 (more precisely, the amount of aggregate loaded between the pull-out belt conveyor 3 and the weighing position of the weighing conveyor 6) , and the amount of aggregate cut out until each aggregate hopper 1a to 1e stops cutting, will be supplied.
そこで、本発明においては、各骨材ホッパ１ａ〜ｌｅの
フィーダー？ａ〜２ｅの駆動によって搬送される骨材量
を計量コンベヤ６で約１秒間隔で計量し、瞬間流量を算
出し、これを積算して骨材積算トン数を算出する。Therefore, in the present invention, each aggregate hopper 1a-le has a feeder? The amount of aggregate conveyed by the drives a to 2e is measured by the weighing conveyor 6 at approximately 1-second intervals to calculate the instantaneous flow rate, and this is integrated to calculate the cumulative tonnage of aggregate.
そして、前記積算トン数≧Ｗｘ−Ｗｈ−Ｗｔ（Ｗｘは出
荷予約された出荷トン数、Ｗｈは骨材供給停止命令発信
時引出しベルトコンベヤ３上に積載されている残留骨材
量、Ｗｔは骨材供給停止命令発信時から各骨材ホッパ１
ａ〜１ｅの切り出し停止までに切り出される骨材量）と
なれば骨材供給停止命令を発信する。この信号によって
骨材ホツバｌａ〜１ｅから最初に切り出し開始された骨
材の切り出し停止トが行われ、骨材供給開始と同じ時間
遅れで順次他の骨材の切り出し停止が行われるのである
。Then, the cumulative tonnage≧Wx-Wh-Wt (Wx is the scheduled shipping tonnage, Wh is the amount of residual aggregate loaded on the pull-out belt conveyor 3 when the aggregate supply stop command is issued, and Wt is the aggregate Each aggregate hopper 1 from the time the material supply stop command is issued.
When the amount of aggregate to be cut out until the cutting is stopped in a to 1e), an aggregate supply stop command is issued. In response to this signal, the cutting of the aggregate that was first started from the aggregate bubbles la to 1e is stopped, and the cutting of other aggregates is sequentially stopped with the same time delay as the start of aggregate supply.
残留骨材量Ｗｈは、各骨材ホッパより切り出される全骨
材の単位時間当りの切り出し量（骨材供給量（トン／時
間））と引出しベルトコンベヤ３の機長、搬送速度から
の予め演算できるものである。また、骨材供給停止命令
発信時から各骨材ホッパ１ａ−１ｅの切り出し停止まで
に切り出される骨材量Ｗｔは、各骨材ホッパ１ａ−１ｅ
より切り出される骨材の単位時間当りの切り出し量を骨
材供給量とフィーダーの回転数比率より演算し、この値
に各骨材毎に設定された切り出し停止までの時間を乗算
することによって予め演算できるものである。The residual aggregate amount Wh can be calculated in advance from the amount of total aggregate cut out from each aggregate hopper per unit time (aggregate supply amount (tons/hour)), the length of the pull-out belt conveyor 3, and the conveyance speed. It is something. In addition, the amount Wt of aggregate cut out from the time when the aggregate supply stop command is issued until the cut-out of each aggregate hopper 1a-1e is stopped is
The amount of aggregate cut out per unit time is calculated from the aggregate supply amount and the feeder rotation speed ratio, and this value is calculated in advance by multiplying the time until cutting stops set for each aggregate. It is possible.
発明の効果
本発明制御方法は、出荷トン数に見合った骨材量を過不
足なしに自動で供給できるものであるから、プラント本
体の貯蔵ビンに余分な骨材を貯蔵しないので骨材温度の
低下によって次回出荷のアスファルト合材の品質に悪影
響を与えることもなく、また、例えプラント本体の貯蔵
ビンに余分な骨材が貯蔵されたとしても極めて少ない骨
材量であるので抜き取り作業が簡単で労力を要しない。Effects of the Invention The control method of the present invention is capable of automatically supplying the amount of aggregate commensurate with the shipping tonnage without excess or deficiency, so excess aggregate is not stored in the storage bin of the plant main body, so the temperature of the aggregate can be reduced. The quality of the next shipment of asphalt mix will not be adversely affected by the decline, and even if excess aggregate is stored in the storage bin of the plant, the amount of aggregate is extremely small, making removal work easy. No effort required.
更に、骨材の供給停止が自動となるのでオペレーターの
労力を軽減するものである。Furthermore, since the supply of aggregate is automatically stopped, the labor of the operator is reduced.
第１図はアスファルトプラントの骨材供給装置の概略図
、第２図は骨材供給状況を示す図である。FIG. 1 is a schematic diagram of an aggregate supply device for an asphalt plant, and FIG. 2 is a diagram showing the aggregate supply situation.
Claims (1)
ッパより切り出された骨材を搬送する引出しベルトコン
ベヤと、搬送される骨材量を計量し、骨材加熱装置であ
るドライヤに供給する計量コンベヤとより成るアスファ
ルトプラントの骨材供給装置において、出荷予約された
アスファルト混合物の種類、配合に応じて所定の骨材ホ
ッパより引出しベルトコンベヤ上に切り出されて搬送さ
れる骨材量を計量コンベヤで計量積算し、該骨材積算ト
ン数≧Ｗｘ−Ｗｈ−Ｗｔ（Ｗｘは出荷予約された出荷ト
ン数、Ｗｈは骨材供給停止命令発信時引出しベルトコン
ベヤ上に積載されている残留骨材量、Ｗｔは骨材供給停
止命令発信時から各骨材ホッパの切り出し停止までに切
り出される骨材量）となれば骨材供給停止命令を発信し
、順次骨材の切り出し停止を行うことを特徴とするアス
ファルトプラントの骨材供給装置制御方法。A plurality of aggregate hoppers that store aggregate according to various particle sizes, a pull-out belt conveyor that conveys the aggregate cut out from the hoppers, and a dryer that is an aggregate heating device that measures the amount of aggregate to be conveyed. In an aggregate supply device of an asphalt plant consisting of a supply measuring conveyor, the amount of aggregate to be cut out from a predetermined aggregate hopper and conveyed onto a pull-out belt conveyor is calculated according to the type and composition of the asphalt mixture reserved for shipment. The cumulative tonnage of aggregate is ≧Wx-Wh-Wt (Wx is the scheduled shipping tonnage, and Wh is the residual bone loaded on the pull-out belt conveyor when the aggregate supply stop command is issued. When the amount of aggregate (Wt) is the amount of aggregate to be cut from the time when the aggregate supply stop command is issued until the cutting of each aggregate hopper is stopped, an aggregate supply stop command is sent and the cutting of aggregate is stopped sequentially. A method for controlling an aggregate supply device for an asphalt plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31096086A JPS63165602A (en) | 1986-12-25 | 1986-12-25 | Control of aggregate material supply apparatus of asphalt plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31096086A JPS63165602A (en) | 1986-12-25 | 1986-12-25 | Control of aggregate material supply apparatus of asphalt plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63165602A true JPS63165602A (en) | 1988-07-08 |
| JPH0242961B2 JPH0242961B2 (en) | 1990-09-26 |
Family
ID=18011474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31096086A Granted JPS63165602A (en) | 1986-12-25 | 1986-12-25 | Control of aggregate material supply apparatus of asphalt plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63165602A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0426205U (en) * | 1990-06-22 | 1992-03-02 | ||
| JP2020139372A (en) * | 2019-03-01 | 2020-09-03 | 範多機械株式会社 | Road paving machine and hopper control device used for the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2534317Y2 (en) * | 1994-09-26 | 1997-04-30 | 株式会社クボタ | All-turn type backhoe |
-
1986
- 1986-12-25 JP JP31096086A patent/JPS63165602A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0426205U (en) * | 1990-06-22 | 1992-03-02 | ||
| JP2020139372A (en) * | 2019-03-01 | 2020-09-03 | 範多機械株式会社 | Road paving machine and hopper control device used for the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0242961B2 (en) | 1990-09-26 |
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