CN103395639A - Device and method for monitoring and controlling flow of ore unshipping system - Google Patents
Device and method for monitoring and controlling flow of ore unshipping system Download PDFInfo
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- CN103395639A CN103395639A CN201310324503XA CN201310324503A CN103395639A CN 103395639 A CN103395639 A CN 103395639A CN 201310324503X A CN201310324503X A CN 201310324503XA CN 201310324503 A CN201310324503 A CN 201310324503A CN 103395639 A CN103395639 A CN 103395639A
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Abstract
The invention relates to the technical field of mechanical and electromechanical equipment control, in particular to a device and a method for monitoring and controlling flow of an ore unshipping system. The device comprises a weighing sensor (1), a processor, a transmission module (8), a PLC (programmable logic controller) main station, a central control room controller (4), a wireless communication network, a power circuit (5), a vibratory feeder, a ship unloader PLC (2) and a ship unloader chamber display (3). The weighing sensor is mounted on a belt conveyor, connected to the processor and connected with the PLC main station, the central control room controller and the ship unloader PLC by the aid of a transmission module. The ship unloader PLC is connected with a control end of a frequency controller of the vibratory feeder. The device and the method have the advantages that operation efficiency is controlled conveniently, quickly and effectively in real time, spillage and leakage are reduced effectively, and adverse impacts on equipment due to overload operation are prevented.
Description
Technical field
The present invention relates to mechanical electromechanical appliance control technology field, particularly belong to a kind of flow monitoring for the ore ship-unloading system and control setup and method.
Background technology
In recent years, the ore transportation development of unloading a ship in harbour is swift and violent, and is along with deepening continuously of competition, also more and more higher to the requirement of the technological process of unloading a ship.The present stage ore that generally the adopts technological process of unloading a ship, generally by ship unloaders, ground band conveyor, stacker-reclaimer etc., formed, article one, band conveyor can corresponding many ship unloaders, equally, ship unloaders also can be selected between different band conveyors, thereby form different work flows.For the efficiency performance that makes ship unloaders and band conveyor in a certain flow process reaches Proper Match, present way is: the ship unloaders driver judges by range estimation the ore flow that band conveyor carries, and then carries out the adjusting operation of ship unloaders blowing speed.When ore proportion difference, the contained ore of every ship changes again especially frequently in situation, the range estimation way does not possess accuracy, can not accurately control dispensing speed according to the real-time traffic of band conveyor, result is easy to cause band conveyor operation flow to surpass rated flow, then cause the serious spreading of whole flow process, leak material, need a large amount of personnel's cleanings, stop up in addition the switching funnel, cause and produce the possibility of interrupting.In addition, there is potential harm in the overload production operation to production facilities, and as drop-gear box broken teeth, off-axis, fluid coupling oil spout etc., cause harmful effect to production safety, production efficiency, the quality of production.
Summary of the invention
Purpose of the present invention namely is to provide a kind of novel ore ship-unloading system flow monitoring and control setup and method, to reach the Reasonable Regulation And Control operating efficiency, to reduce the purpose that material, maintenance equipment production safety are leaked in spreading.
Ore ship-unloading system flow monitoring disclosed in this invention and control setup, it is characterized in that, comprise LOAD CELLS, treater, transport module, PLC main website, Central Control Room controller, wireless communication networks, power circuit, vibra feeder, ship unloaders PLC and the unit room display interface of unloading a ship; LOAD CELLS is arranged on band conveyor, is connected in the input port of treater, and treater utilizes it with the RS485 interface, and, by transport module, realizes the communication with the PLC main website; The PLC main website is connected with the input end of Central Control Room controller by optical cable; Described wireless communication networks comprises wireless telecommunications transmitter and wireless communication receiver, and the wireless telecommunications transmitter is connected in the output port of Central Control Room controller, and wireless communication receiver is connected in the input end of ship unloaders PLC; Ship unloaders PLC is connected with the control end of vibra feeder frequency converter; Power circuit provides power supply for whole device.
The method of control ore ship-unloading system flow monitoring disclosed in this invention and control setup, is characterized in that, comprises the following steps:
One, ship unloaders blowing auto-control:
1) by the real-time traffic of LOAD CELLS and treater measuring belt conveyer, and utilize transport module that data on flows is sent to the PLC main website, then be sent to Central Control Room controller and telltale, ship unloaders PLC and telltale;
2) ship unloaders PLC analyzes above-mentioned data on flows, with setting value, compares, and according to comparative result, controls the vibra feeder frequency converter, to realize the automatic adjustment of vibra feeder delivery rate:
When rated flow was following, the ship unloaders driver was according to the data of real-time demonstration, enlargement discharge gradually when the flow process flow.
When the flow process flow surpassed rated flow, ship unloaders telltale flow for displaying was overweight, reported to the police, and automatically reduced ship unloaders vibra feeder dispensing speed;
When the flow process flow surpassed maximum permissible flow, the ship unloaders telltale showed overload, automatically stops ship unloaders vibra feeder blowing;
Two, the ship unloaders driver inquires about the band conveyor flow:
1) ship unloaders PLC analyzes above-mentioned data on flows, forms picture and text and shows and waveform trend figure, is presented at the interface of ship unloaders telltale;
2) by InTouch Development configuration software, design database, ship unloaders PLC calculates the band conveyor data on flows, analyze and adds up, and realizes remote access by local area network.
ore ship-unloading system flow monitoring disclosed in this invention and control setup and method for supervising thereof, can realize the remote monitor and control to the band conveyor flow, the band conveyor flow is remained in certain range of control, and condition feedback that can be in time that the band conveyor flow is current is to ship unloaders PLC, the logical ship unloaders display interfaces of driver can be inquired about the flow status data of band conveyor random time at any time simultaneously, have and facilitate fast and effectively control in real time operating efficiency, effectively to reduce spreading, leak the material phenomenon, prevent that the overload operation forms the good effect of adverse effect to equipment.
The accompanying drawing explanation
The accompanying drawing part further discloses the specific embodiment of the present invention, below in conjunction with accompanying drawing, the present invention is described in further detail,
Fig. 1 is the structural representation of ore ship-unloading system flow monitoring and control setup;
Fig. 2 is the logic diagram of ore ship-unloading system flow monitoring and control setup;
Fig. 3 is the workflow diagram of ore ship-unloading system flow monitoring and control method.
The specific embodiment
As shown in Figure 1 and Figure 2, the present invention for ore ship-unloading system flow monitoring and control setup, comprise LOAD CELLS 1, treater, transport module 8, PLC main website, Central Control Room controller 4, wireless communication networks, power circuit 5, vibra feeder, ship unloaders PLC 2 and the unit room telltale 3 of unloading a ship.
LOAD CELLS and treater that above-mentioned LOAD CELLS 1, treater system utilize belted electronic balance to comprise, without purchasing in addition and installing.Treater utilizes it with the RS485 interface, and by transport module, realize the communication with the PLC main website, the PLC main website can select S7-226PLC as data collection station (DAS), and realize that with MODBUS RTU communications protocol the communication between S7-226 PLC and treater connects, field network adopts the access of principal and subordinate's addressing mode; LOAD CELLS is obtained flow signal, and after treated device was processed, to the PLC main website, the PLC main website sent a signal to Central Control Room by optical cable by transport module transmitted traffic signal.
Utilize wireless communication networks to realize the radio communication between Central Control Room controller and ship unloaders PLC.Described wireless communication networks comprises wireless telecommunications transmitter 6 and wireless communication receiver 7, and Central Control Room has 2 wireless telecommunications transmitters, with the Central Control Room controller, is connected; 1 wireless communication receiver is installed on every ship unloaders, PLC is connected with ship unloaders.Wireless communication receiver on ship unloaders receives the data on flows that sends from the wireless telecommunications transmitter in Central Control Room, ship unloaders PLC is according to the flow of material on band conveyor, analysis judges whether the frequency of this increase vibra feeder frequency converter, and then the blowing amount on band conveyor.
Obviously, described power circuit 5 should be set and provide power supply for whole device.In addition, be simplied system structure, above-mentioned LOAD CELLS and treater can replace with SIEMENS BW500 belt conveyer scale.
Described belt conveyer scale can be processed belt load and speed signal, and accurately calculate flow and the cumulative amount of solid, data between belt conveyer scale and PLC main website transmit, be by the integrated RS485 interface of belt conveyer scale, to be connected to corresponding transport module to complete, and adopt MODBUS RTU communications protocol to realize that the communication between S7-226 PLC and belt conveyer scale connects.The flow signal that belt conveyer scale gathers, by the PLC main website, by optical cable, reach the Central Control Room controller, by the wireless telecommunications transmitter in Central Control Room, signal is reached to the wireless communication receiver in ship unloaders again, ship unloaders are processed and are analyzed data on flows by ship unloaders PLC after receiving signal.
In the specific embodiment, belt conveyer scale can adopt multiple functional planimeter BW500, and belt load and speed signal are processed, accurately calculates flow and the cumulative amount of solid.BW500 is integrated standard RS-232 and RS-485 communication interface, totally 3 kinds of communications protocol is integrated MODBUS-RTU and MODBUS-ASCII and standard DOLPHIN.Because there are 2 BW500 controllers at scene, gather respectively the data of two band conveyors, in conjunction with on-the-spot application sublimity, the final RS485 interface MODBUS RTU communications protocol of belt conveyer scale that adopts connects for the communication between S7-226 PLC and BW500, and field network adopts the access of principal and subordinate's addressing mode.It is main wireless telecommunication system that wireless device adopts American I NTUICOM 2.4G product, the advantage that this product possesses: possess the 2.4G licensed band; The radio modulation mode is OFDM, 40M bandwidth, 108Mbps speed; 600 milliwatt emissive powers;-74 dbm are to the sensitivity of-97DBM, and equipment is reliable, and performance is leading.
A data receiving end respectively is set on some ship unloaders, after receptor SRM6320 receives message data, the data message is decoded, decoded data are connected to the Industrial Ethernet of ship unloaders own by Industrial Ethernet.Seamless communication and data sharing on the physical layer of Belt Conveying machine data and ship unloaders data have so just been realized.
Method below in conjunction with 3 pairs of ore ship-unloading system flow monitorings disclosed in this invention of accompanying drawing and control setup is further described:
The current data on flows of belt balance weighing metering of band conveyor, send to the PLC main website through transport module, then reach the Central Control Room controller by optical cable.Wireless telecommunications transmitter in Central Control Room is sent to ship unloaders by signal, and received by the wireless communication receiver on ship unloaders, and then process and analyze by the data that ship unloaders PLC collects belt conveyer scale, generate band conveyor flow control value, to control ship unloaders vibra feeder blowing amount.
In rated flow, when as following as 7500t/h, the ship unloaders driver is according to the flow process flow of real-time demonstration, enlargement discharge gradually when the flow process flow.
When the flow process flow reaches 7500t/h, the overweight warning of driver's cab CMS flow for displaying, and automatically reduce ship unloaders vibra feeder dispensing speed.
When the flow process flow surpasses 8500t/h, driver CMS chamber shows overload, automatically stops ship unloaders vibra feeder blowing.
The method of ore ship-unloading system flow monitoring disclosed in this invention and control setup, also has ship unloaders inquiry band conveyor flow CMS interface, driver's cab CMS system interface has corresponding picture and text demonstration and waveform trend figure shows, the driver can real time inspection ground band conveyor operation flow related data, and assist the driver to control the operation in operation process by analysis software.Ship unloaders PLC has hardware and compiler control program, realizes that vibra feeder can control the blowing function according to uninterrupted.By InTouch Development configuration software, design database, the issue of web website.The band conveyor signal is carried out to system-computed, analysis and statistics, finally by graphic interface, be presented on webpage.By local area network, realize Office Network remote access, for further accomplishing quantitative analysis, statistics, carried out basis.Have and improve operating efficiency, effectively reduce spreading and leak the material amount, ensure production safety, improve the good effect of economic results in society.
Claims (2)
1. an ore ship-unloading system flow monitoring and control setup, it is characterized in that, comprise LOAD CELLS (1), treater, transport module (8), PLC main website, Central Control Room controller (4), wireless communication networks, power circuit (5), vibra feeder, ship unloaders PLC(2) and the unit room telltale (3) of unloading a ship; LOAD CELLS is arranged on band conveyor, is connected in the input port of treater, and treater utilizes it with the RS485 interface, and, by transport module, realizes the communication with the PLC main website; The PLC main website is connected with the input end of Central Control Room controller by optical cable; Described wireless communication networks comprises wireless telecommunications transmitter (6) and wireless communication receiver (7), and the wireless telecommunications transmitter is connected in the output port of Central Control Room controller, and wireless communication receiver is connected in the input end of ship unloaders PLC; Ship unloaders PLC is connected with the control end of vibra feeder frequency converter; Power circuit provides power supply for whole device.
2. an ore ship-unloading system flow monitoring and control method, is characterized in that, comprises the following steps:
One, ship unloaders blowing auto-control:
1) by the real-time traffic of LOAD CELLS and treater measuring belt conveyer, and utilize transport module that data on flows is sent to the PLC main website, then be sent to Central Control Room controller and telltale, ship unloaders PLC and telltale;
2) ship unloaders PLC analyzes above-mentioned data on flows, with setting value, compares, and according to comparative result, controls the vibra feeder frequency converter, to realize the automatic adjustment of vibra feeder delivery rate:
When rated flow was following, the ship unloaders driver was according to the data of real-time demonstration, enlargement discharge gradually when the flow process flow;
When the flow process flow surpassed rated flow, ship unloaders telltale flow for displaying was overweight, reported to the police, and automatically reduced ship unloaders vibra feeder dispensing speed;
When the flow process flow surpassed maximum permissible flow, the ship unloaders telltale showed overload, automatically stops ship unloaders vibra feeder blowing;
Two, the ship unloaders driver inquires about the band conveyor flow:
1) ship unloaders PLC analyzes above-mentioned data on flows, forms picture and text and shows and waveform trend figure, is presented at the interface of ship unloaders telltale;
2) by InTouch Development configuration software, design database, ship unloaders PLC calculates the band conveyor data on flows, analyze and adds up, and realizes remote access by local area network.
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| CN201310324503XA CN103395639A (en) | 2013-07-30 | 2013-07-30 | Device and method for monitoring and controlling flow of ore unshipping system |
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| CN201310324503XA CN103395639A (en) | 2013-07-30 | 2013-07-30 | Device and method for monitoring and controlling flow of ore unshipping system |
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Cited By (5)
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| CN103662875A (en) * | 2013-12-12 | 2014-03-26 | 日照港股份有限公司第二港务分公司 | Belt conveyor signal transmission control device and method used for ship unloader |
| CN104891211A (en) * | 2015-05-08 | 2015-09-09 | 广西金达造船有限公司 | Discharging device for ship |
| CN105084024A (en) * | 2015-08-06 | 2015-11-25 | 中交一航局安装工程有限公司 | Automatic control system for bulk cargo port transportation |
| CN105314412A (en) * | 2014-07-31 | 2016-02-10 | 上海梅山钢铁股份有限公司 | Unloading flow stabilizing device for ship unloader and control method |
| CN112904808A (en) * | 2021-01-14 | 2021-06-04 | 连云港东粮码头有限公司 | Control system integrating grain bulk operation and unloading process of gantry crane |
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Cited By (5)
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|---|---|---|---|---|
| CN103662875A (en) * | 2013-12-12 | 2014-03-26 | 日照港股份有限公司第二港务分公司 | Belt conveyor signal transmission control device and method used for ship unloader |
| CN105314412A (en) * | 2014-07-31 | 2016-02-10 | 上海梅山钢铁股份有限公司 | Unloading flow stabilizing device for ship unloader and control method |
| CN104891211A (en) * | 2015-05-08 | 2015-09-09 | 广西金达造船有限公司 | Discharging device for ship |
| CN105084024A (en) * | 2015-08-06 | 2015-11-25 | 中交一航局安装工程有限公司 | Automatic control system for bulk cargo port transportation |
| CN112904808A (en) * | 2021-01-14 | 2021-06-04 | 连云港东粮码头有限公司 | Control system integrating grain bulk operation and unloading process of gantry crane |
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Application publication date: 20131120 |