CN202609540U - Quantitative feeding system - Google Patents

Quantitative feeding system Download PDF

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Publication number
CN202609540U
CN202609540U CN 201220275039 CN201220275039U CN202609540U CN 202609540 U CN202609540 U CN 202609540U CN 201220275039 CN201220275039 CN 201220275039 CN 201220275039 U CN201220275039 U CN 201220275039U CN 202609540 U CN202609540 U CN 202609540U
Authority
CN
China
Prior art keywords
chute
frequency converter
material boiling
plc
bearing sensor
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 - Lifetime
Application number
CN 201220275039
Other languages
Chinese (zh)
Inventor
蔡豫
曹斌
林文帅
杨溢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Original Assignee
Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guiyang Aluminum Magnesium Design and Research Institute Co Ltd filed Critical Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Priority to CN 201220275039 priority Critical patent/CN202609540U/en
Application granted granted Critical
Publication of CN202609540U publication Critical patent/CN202609540U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a quantitative feeding system. A material boiling chute (1) is located above the input end of a belt drive device (2). A bearing sensor (3) is arranged on an LO position on the left side edge of the material boiling chute (1) and below the belt drive device (2). The bearing sensor (3) is electrically connected with a programmable logic controller (PLC) (4), the PLC (4) is electrically connected with a frequency converter (5), and the frequency converter (5) is electrically connected with a blower motor of the material boiling chute (1). A complete accurate quantitative feeding system is formed by means of automatic control equipment of the PLC, the frequency converter and the bearing sensor. Bearing signals transmitted from the bearing sensor (3) are analyzed by the PLC (4); and then according to corresponding control strategy, control signals are transmitted to act on the frequency converter (5), discharging rate of the material boiling chute is controlled by the frequency converter, and uniformity and constant rate of feeding are guaranteed.

Description

Dosing system
Technical field
The utility model relates to a kind of dosing system that is used for.
Background technology
Alumina producer, electrolytic aluminium factory, cement mill are used material-transporting system in a large number at present, and it is mainly to produce and supplies raw materials, and delivers to workshop to raw material, and delivers to appointed positions to the finished product material.In the production technology engineering, often need the speed of mass transport to keep certain constant and homogeneity of keeping mass transport.The material-transporting system of prior art lacks the weighting apparatus to convey materials, can't know mass flow, thereby the homogeneity of uncontrollable convey materials.
Summary of the invention
The technical matters that the utility model will solve is: a kind of dosing system is provided; Can make feeding system with higher feed precision convey materials for a long time; Guarantee the feed homogeneity in the work-hours; Can't know mass flow with what overcome that prior art exists, thereby the deficiency of uncontrollable convey materials homogeneity.
The utility model is to constitute like this: it comprises material boiling chute, belt transmission, bearing sensor PLC controller, frequency converter; Material boiling chute is positioned at the input end top of belt transmission, and bearing sensor is arranged on the left side L apart from material boiling chute 0The belt below of place, belt transmission; Between the air supply motor of bearing sensor and PLC controller, PLC controller and frequency converter, frequency converter and material boiling chute for being electrically connected.
Left side L 0Value be 0.5 ~ 1 meter.
Material gets into material boiling chute from feed bin; Under the ebullated bed effect; Material gets into belt transmission from the boiling chute and carries out continuous measurement, analyzed by the PLC controller from the load-bearing signal of bearing sensor transmission, sends control signal according to corresponding control strategies then and acts on frequency converter, by the air supply motor of Frequency Converter Control boiling chute; Air supply motor control air quantity and discharging speed are in order to guarantee the homogeneity and the constant rate of speed of feed.
Control principle:
Feeding coal P is by belt load q and belt speed V 0(in control system, belt speed is constant) decision, the function ratio of belt load and belt speed are wanted quite and setting value:
P=q * V 0=W setting value;
Q------belt specific load Kg/m (emphasis control);
V 0------belt speed of transmission m/s (be controlled to be by motor speed constant);
Make that the P value is a constant controlling valu, must control q is a stable value.
At first, the sampling time of setting bearing sensor is:
T=L 0/ V 0, be the cycle material to be carried out sampled measurements with T, and the employing data that will obtain in real time and needed
q 0=P Set/ V 0Compare q when q is lower than 0, output control signals to frequency converter through PLC, with the air supply motor speed raising of control feed chute, to increase air-supply speed V (t).
Otherwise, when q greater than the time q 0, output control signals to frequency converter through PLC, the air supply motor speed of controlling the feed chute is reduced, to reduce the speed V (t) that blows.Control cycle is similarly T.
Under through mechanical and controlled operating mode situation, obtain to realize that stablizing the variable frequency control condition is:
1. belt speed is constant is V 0
2. the air-supply speed V (t) of feed chute is basicly stable in the scope of time t, fluctuates less (< 5%).
The utility model compared with prior art has the convey materials advantage of uniform, can guarantee the feed homogeneity in the work-hours.
Fig. 1 is the structural representation of the utility model.
The specific embodiment
The embodiment of the utility model: material boiling chute 1 is positioned at the input end top of belt transmission 2, and bearing sensor 3 is arranged on the belt below apart from the left side LO place of material boiling chute 1, belt transmission 2; Between the air supply motor of bearing sensor 3 and PLC controller 4, PLC controller 4 and frequency converter 5, frequency converter 5 and material boiling chute 1 for being electrically connected.
Left side L 0Value be 1 meter.
When production needs mass transport; Material gets into material boiling chute 1 from feed bin; Open the air supply motor air-supply of boiling usefulness; Material from material boiling chute 1 get into belt transmission 2 carries out continuous measurement, through bearing sensor 3 sampling uniformly in the time period of timing T, the weight of material of the unit belt in each time period T of weighing, according to claim the weight of material value compare with the thing amount gravimetric value that configures.If claim value greater than setting value; Through the PLC controller frequency converter is sent control signal so and makes the delivery rate of boiling chute 1 slow down accordingly, on the contrary, if claim value less than setting value; Through the PLC controller frequency converter being sent control signal so makes the delivery rate of material boiling chute 1 accelerate accordingly; But guarantee the air-supply speed V (t) of feed chute, basicly stable in the scope of time t, fluctuate less (< 5%).

Claims (2)

1. dosing system is characterized in that: material boiling chute (1) is positioned at the input end top of belt transmission (2), and bearing sensor (3) is arranged on the left side L apart from material boiling chute (1) 0The belt below of place, belt transmission (2); Between the air supply motor of bearing sensor (3) and PLC controller (4), PLC controller (4) and frequency converter (5), frequency converter (5) and material boiling chute (1) for being electrically connected.
2. dosing system according to claim 1 is characterized in that: left side L 0Value be 0.5 ~ 1 meter.
CN 201220275039 2012-06-12 2012-06-12 Quantitative feeding system Expired - Lifetime CN202609540U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220275039 CN202609540U (en) 2012-06-12 2012-06-12 Quantitative feeding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220275039 CN202609540U (en) 2012-06-12 2012-06-12 Quantitative feeding system

Publications (1)

Publication Number Publication Date
CN202609540U true CN202609540U (en) 2012-12-19

Family

ID=47343257

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220275039 Expired - Lifetime CN202609540U (en) 2012-06-12 2012-06-12 Quantitative feeding system

Country Status (1)

Country Link
CN (1) CN202609540U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103057928A (en) * 2012-12-21 2013-04-24 承德承信自动化工程有限公司 Metering control method of constant feeder
CN103482337A (en) * 2012-06-12 2014-01-01 贵阳铝镁设计研究院有限公司 Constant feeding system device
CN103495549A (en) * 2013-09-30 2014-01-08 昆山市华浦塑业有限公司 Device for automatically screening and conveying cold-runner injection molding products and material rods
CN104139992A (en) * 2014-08-05 2014-11-12 蔡宏磊 Recycle control device of pellets returning to mine
CN104748826A (en) * 2015-03-10 2015-07-01 铜陵有色金属集团股份有限公司 Method for achieving accurate burdening and continuous metering of static-state hopper scale
CN109292340A (en) * 2018-10-29 2019-02-01 太原市奥特莱物流科技有限公司 A kind of push-and-pull picking auxiliary device for shuttle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103482337A (en) * 2012-06-12 2014-01-01 贵阳铝镁设计研究院有限公司 Constant feeding system device
CN103057928A (en) * 2012-12-21 2013-04-24 承德承信自动化工程有限公司 Metering control method of constant feeder
CN103495549A (en) * 2013-09-30 2014-01-08 昆山市华浦塑业有限公司 Device for automatically screening and conveying cold-runner injection molding products and material rods
CN104139992A (en) * 2014-08-05 2014-11-12 蔡宏磊 Recycle control device of pellets returning to mine
CN104748826A (en) * 2015-03-10 2015-07-01 铜陵有色金属集团股份有限公司 Method for achieving accurate burdening and continuous metering of static-state hopper scale
CN109292340A (en) * 2018-10-29 2019-02-01 太原市奥特莱物流科技有限公司 A kind of push-and-pull picking auxiliary device for shuttle

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Granted publication date: 20121219

CX01 Expiry of patent term