CN103482337A - Constant feeding system device - Google Patents
Constant feeding system device Download PDFInfo
- Publication number
- CN103482337A CN103482337A CN201210192031.2A CN201210192031A CN103482337A CN 103482337 A CN103482337 A CN 103482337A CN 201210192031 A CN201210192031 A CN 201210192031A CN 103482337 A CN103482337 A CN 103482337A
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- China
- Prior art keywords
- chute
- frequency converter
- plc
- material boiling
- belt
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- 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.)
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Abstract
The invention discloses a constant feeding system device. The constant feeding system device is characterized in that a material boiling chute (1) is positioned above an input end of a belt transmission device (2), a bearing sensor (3) is arranged at a position which is L0 far away from the left side edge of the material boiling chute (1) and under a belt of the belt transmission device (2); the bearing sensor (3) and a PLC (Programmable Logic Controller) (4), the PLC (4) and a frequency converter (5) as well as the frequency converter (5) and a blower motor of the material boiling chute (1) are electrically connected. An integrated accurate constant feeding system is formed by an automatic control device, namely the PLC, the frequency converter and a weighing sensor; a bearing signal transmitted by the bearing sensor (3) is analyzed by the PLC (4), a control signal can be emitted according to a corresponding control strategy and can act on the frequency converter (5), the material discharging speed of the material boiling chute can be controlled by the frequency converter, and thus the uniformity and the constant speed of material feeding can be ensured.
Description
Technical field
The present invention relates to a kind of for dosing system.
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 raw material is delivered to workshop, and finished product material is delivered to the position of appointment.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 problem to be solved in the present invention 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 work-hours, can't know mass flow with what overcome that prior art exists, thereby the deficiency of uncontrollable convey materials homogeneity.
The present invention forms 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 below the belt that the limit, left side apart from material boiling chute is LO 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 to.
The value of LO is 0.5～1 meter.
Material enters material boiling chute from feed bin, under the ebullated bed effect, material enters 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, then send control signal according to corresponding control policy and act on frequency converter, air supply motor by Frequency Converter Control boiling chute, air supply motor is controlled air quantity and discharging speed, in order to homogeneity and the constant rate of speed that guarantees feed.
Control principle:
Feeding coal P is by belt load q and belt speed
(in control system, belt speed is constant) determines, the function ratio of belt load and belt speed is wanted quite and setting value:
P=q *
=W setting value
Q------belt specific load Kg/m(priority control)
Making the P value is a constant controlling valu, and must control q is a stable value.
At first, the sampling time of setting bearing sensor is:
Otherwise, when q is greater than
, output control signals to frequency converter by 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.
In the operating mode situation by mechanical and controlled, obtain and realize that stablizing the variable frequency control condition is:
1. belt speed is constant is
2. the air-supply speed V(t of feed chute), basicly stable in the scope of time t, less (<5%) fluctuates.
The present invention compared with prior art, has the uniform advantage of convey materials, can guarantee the feed homogeneity in work-hours.
Fig. 1 is structural representation of the present invention.
The specific embodiment
Embodiments of the invention: material boiling chute 1 is positioned at the input end top of belt transmission 2, and bearing sensor 3 is arranged on below the belt that the limit, left side apart from material boiling chute 1 is LO 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 to.
The value of LO is 0.5～1 meter.
When the need of production mass transport, material enters material boiling chute 1 from feed bin, open the air supply motor air-supply of boiling use, material enters belt transmission 2 from material boiling chute 1 to carry out continuous measurement, samples uniformly within the time period of timing T by bearing sensor 3, the weight of material of the unit belt in each time period T of weighing, according to claim the weight of material value and the thing amount gravimetric value set compare.If claim value be greater than setting value, by the PLC controller, frequency converter being sent to control signal so makes the delivery rate of boiling chute 1 slow down accordingly, on the contrary, if claim value be less than setting value, by the PLC controller, frequency converter being sent to 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, less (<5%) fluctuates.
Claims (2)
1. a dosing system, it 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 below the belt that the limit, left side apart from material boiling chute (1) is LO 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 to.
2. dosing system according to claim 1, it is characterized in that: the value of LO is 0.5～1 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210192031.2A CN103482337A (en) | 2012-06-12 | 2012-06-12 | Constant feeding system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210192031.2A CN103482337A (en) | 2012-06-12 | 2012-06-12 | Constant feeding system device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103482337A true CN103482337A (en) | 2014-01-01 |
Family
ID=49823022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210192031.2A Pending CN103482337A (en) | 2012-06-12 | 2012-06-12 | Constant feeding system device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103482337A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192545A (en) * | 2014-06-27 | 2014-12-10 | 江苏大学 | Automatic straw material feeding device of ring die briquetting machine |
| CN104310028A (en) * | 2014-09-03 | 2015-01-28 | 江苏江城电气有限公司 | Feeding mechanism for busbar production line |
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|---|---|---|---|---|
| CN201242677Y (en) * | 2008-07-08 | 2009-05-20 | 常州百佳磁卡有限公司 | Weighing electric-controlled system for charge machine |
| CN201254612Y (en) * | 2008-09-10 | 2009-06-10 | 中铝国际技术发展有限公司 | Boiling device in bin |
| CN101544306A (en) * | 2009-04-10 | 2009-09-30 | 上海市东方海事工程技术有限公司 | System and method for intelligently controlling electronic weighing type coal feeder |
| CN201686302U (en) * | 2010-03-26 | 2010-12-29 | 大连雅望机电设备有限公司 | Belt feeder |
| CN201737463U (en) * | 2010-07-22 | 2011-02-09 | 上海新安汽车隔音毡有限公司 | Automatic feeding device |
| CN201932687U (en) * | 2010-12-31 | 2011-08-17 | 上海发电设备成套设计研究院 | Belt weighing type feeder mated device |
| CN202063536U (en) * | 2011-04-13 | 2011-12-07 | 福建龙净脱硫脱硝工程有限公司 | Double-speed-regulation continuous metering feeding device for spiral conveyer and omniseal belt conveyer scale |
| CN202147854U (en) * | 2011-07-18 | 2012-02-22 | 秦皇岛普达电子有限公司 | Air-blowing type quantitative packing machine |
| CN202609540U (en) * | 2012-06-12 | 2012-12-19 | 贵阳铝镁设计研究院有限公司 | Quantitative feeding system |
-
2012
- 2012-06-12 CN CN201210192031.2A patent/CN103482337A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201242677Y (en) * | 2008-07-08 | 2009-05-20 | 常州百佳磁卡有限公司 | Weighing electric-controlled system for charge machine |
| CN201254612Y (en) * | 2008-09-10 | 2009-06-10 | 中铝国际技术发展有限公司 | Boiling device in bin |
| CN101544306A (en) * | 2009-04-10 | 2009-09-30 | 上海市东方海事工程技术有限公司 | System and method for intelligently controlling electronic weighing type coal feeder |
| CN201686302U (en) * | 2010-03-26 | 2010-12-29 | 大连雅望机电设备有限公司 | Belt feeder |
| CN201737463U (en) * | 2010-07-22 | 2011-02-09 | 上海新安汽车隔音毡有限公司 | Automatic feeding device |
| CN201932687U (en) * | 2010-12-31 | 2011-08-17 | 上海发电设备成套设计研究院 | Belt weighing type feeder mated device |
| CN202063536U (en) * | 2011-04-13 | 2011-12-07 | 福建龙净脱硫脱硝工程有限公司 | Double-speed-regulation continuous metering feeding device for spiral conveyer and omniseal belt conveyer scale |
| CN202147854U (en) * | 2011-07-18 | 2012-02-22 | 秦皇岛普达电子有限公司 | Air-blowing type quantitative packing machine |
| CN202609540U (en) * | 2012-06-12 | 2012-12-19 | 贵阳铝镁设计研究院有限公司 | Quantitative feeding system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192545A (en) * | 2014-06-27 | 2014-12-10 | 江苏大学 | Automatic straw material feeding device of ring die briquetting machine |
| CN104310028A (en) * | 2014-09-03 | 2015-01-28 | 江苏江城电气有限公司 | Feeding mechanism for busbar production line |
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Application publication date: 20140101 |