CN1058571A - 定值可控电振给料器 - Google Patents

定值可控电振给料器 Download PDF

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Publication number
CN1058571A
CN1058571A CN 90100844 CN90100844A CN1058571A CN 1058571 A CN1058571 A CN 1058571A CN 90100844 CN90100844 CN 90100844 CN 90100844 A CN90100844 A CN 90100844A CN 1058571 A CN1058571 A CN 1058571A
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China
Prior art keywords
value
vibration feeder
computing machine
electric vibration
amount
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Pending
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CN 90100844
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English (en)
Inventor
余仲宣
傅天祥
余灵芝
王水泉
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Individual
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Individual
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Priority to CN 90100844 priority Critical patent/CN1058571A/zh
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Abstract

电振给料器广泛地应用于各种磨机的给料和配 料系统中。它实际上是一组安装于料仓下料口绕有 线圈的电磁铁。当脉动电流通过线圈，电磁铁产生振 动，物料便徐徐下落，调节脉动电流的幅值，物料下落 量便得到调整。然而物料的下落量不完全决定于振 动强度，还与物料的粒度、水分、尘埃等因素密切相 关，因此目前使用的电振给料器，其给料量不能做到 定值可控，这就使得电振给料器在不少生产机械中不 能满足工艺要求，急切期待改进。

Description

本系统的结构原理如图所示，从电振给料器下落的物料通过皮带秤架时，传感器便输出与物料流量成正比的偏差信号△u，此信号经A/O转换后成为数码G，计算机将G与给定值G0加以比较，根据比较结果以决定数码B的增减，其数字模型为：
G-Go＞0，GEC  B
G-Go＜0，INC  B
G-Go＝0，B不变
其中OEC为递减1个数码;INC为递增1个数码。数码B通过O/A转换成为模电压，控制可控硅装置的导通角，使电振电流I获得相应的增或减，亦即振动强度得到相应的调整。从而使给料量在给值附近变动，达到定值控制的目的。
结构原理图
△u-传感器输出的正比于物料流量的偏差信号;G-数码表示的物料流量;GO-设定的物料流量;B-计算机输出的控制电振强度的数码;i-正比于数码的脉动电流;X-瞬时流量;Y-累计流量;

Claims (1)

  1. 计算机1根据给定值2提供的开关量Go和电子皮带秤3提供的物料通过G进行比较，当皮带上物料通过量G大于给定值Go时，计算机使B值减小，从而使电振电流l减小，导致电振给料器4的振动强度削弱，物料下落量G相应减小，使G值向Go靠近；若皮带上的物料通过量G小于设定值Go时，计算机使B值增加，从而使电振电流I增大，导致电振给料器4的振动强度增强，物料下落量G相应增大，使G值向Go靠近；若G值与Go相等，则一切维持原状不变。
    整个装置的特征在于用电子皮带秤3作为物料下落的检测手段，组成自动调整物料下落量的闭环系统。
CN 90100844 1990-02-20 1990-02-20 定值可控电振给料器 Pending CN1058571A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 90100844 CN1058571A (zh) 1990-02-20 1990-02-20 定值可控电振给料器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 90100844 CN1058571A (zh) 1990-02-20 1990-02-20 定值可控电振给料器

Publications (1)

Publication Number Publication Date
CN1058571A true CN1058571A (zh) 1992-02-12

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ID=4876834

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 90100844 Pending CN1058571A (zh) 1990-02-20 1990-02-20 定值可控电振给料器

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CN (1) CN1058571A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103612844A (zh) * 2013-11-22 2014-03-05 山东工大中能科技有限公司 矿山粉矿仓下料口堵塞的自动清堵方法和装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103612844A (zh) * 2013-11-22 2014-03-05 山东工大中能科技有限公司 矿山粉矿仓下料口堵塞的自动清堵方法和装置
CN103612844B (zh) * 2013-11-22 2016-03-23 山东工大中能科技有限公司 矿山粉矿仓下料口堵塞的自动清堵方法和装置

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