CN107697598A - A kind of frequency conversion drag conveyor Intelligent speed-adjustable control system - Google Patents
A kind of frequency conversion drag conveyor Intelligent speed-adjustable control system Download PDFInfo
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- CN107697598A CN107697598A CN201710989692.0A CN201710989692A CN107697598A CN 107697598 A CN107697598 A CN 107697598A CN 201710989692 A CN201710989692 A CN 201710989692A CN 107697598 A CN107697598 A CN 107697598A
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- conveyor
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- frequency converter
- elevating conveyor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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- Escalators And Moving Walkways (AREA)
Abstract
The present invention relates to the drag conveyor speed regulating control that VFC is used in underground coal mine, is exactly specifically to change the drag conveyor speed of service by adjusting the output frequency of frequency converter, reaches energy-saving effect.System is made up of centralized control center, handpiece of scraper conveyer frequency converter, scraper conveyor tail frequency converter and elevating conveyor frequency converter, centralized control center is by gathering the running current of each frequency converter, the running frequency of each frequency converter is adjusted in real time, realizes the intelligent speed-regulating of drag conveyor；When elevating conveyor zero load, the speed of service of scrapper conveyor is reduced, when elevating conveyor underloading, the speed of service of scrapper conveyor is improved, increases the transporting coal amount of elevating conveyor；When elevating conveyor heavy duty, the scrapper conveyor speed of service is reduced, reduces elevating conveyor coal capacity.By the intelligent speed-regulating to drag conveyor, on the premise of yield is not influenceed, reduce equipment attrition, improve service life of equipment, reach underground coal mine application converter technique and realize energy-saving effect.
Description
Technical field
The present invention relates to being controlled in underground coal mine using the drag conveyor intelligent speed-regulating of Frequency Converter Control, specifically
It is the control system that a kind of output frequency by Intelligent adjustment frequency converter changes the drag conveyor speed of service.
Background technology
In underground coal mine fully-mechanized mining equipment, the Coal Transport that scratch board conveyor exploits coal-winning machine into elevating conveyor,
Elevating conveyor is transported to belt conveyer and transported therewith to ground again.In traditional mode, scrapper conveyor motor be single-speed motor or
Person's double-speed motor, after scrapper conveyor starting, motor is always held under power frequency and worked, and the rotating speed of motor and torque can only rely on electricity
The characteristic curve automatic adjusument of machine itself, can not autonomous regulation motor rotating speed, when causing scrapper conveyor load very little or scrape
During trigger zero load, the motor holding that remains unchanged runs at high speed, and causes a large amount of electric loss of energies, while increase the abrasion of equipment.With
The continuous development of Power Electronic Technique, converter technique is widely used in China's all trades and professions, using frequency control
Technology, frequency converter can free regulation motor frequency of supply, with less than 50Hz frequency run, in the guarantee of various control models
Under, realize that motor low speed is started, run, in actual applications, if the transporting coal amount Intelligent adjustment scraper plate by detecting scrapper conveyor
The speed of service of machine, the abrasion of equipment with energy-saving, can be both reduced again, the service life of equipment is improved, due to fully mechanized mining
The severe complicated, roof timbering of scrapper conveyor of the field condition of working face constantly lifts in coal winning technology, does not manage up to now
The method thought detects the actual transporting coal amount on scrapper conveyor, even if being detected using coal flow sensor, actual error is also larger,
Application effect is poor.Next stage transporting equipment of the elevating conveyor as drag conveyor, drive its motor operating current and its
Both transporting coal amount is relevant while also relevant with the present load of scrapper conveyor for load, so the operating current by reprinting electric motor
The speed of service of scrapper conveyor can be adjusted, reaches the target of scrapper conveyor intelligent regulator.
The content of the invention
The purpose of the present invention is when underground coal mine scrapper conveyor, elevating conveyor use transducer drive, it is not necessary to installs periphery additional
The weighing device such as coal flow sensor, the intelligent regulator of fully-mechanized mining working surface conveyer is realized by the method for fuzzy control,
The service life of equipment is improved on the premise of coal winning technology is not influenceed and reaches energy-saving purpose.
The present invention is a kind of underground coal mine frequency conversion drag conveyor intelligent regulator control system, including centralized control center, is reprinted
Machine frequency converter, scrapper conveyor head frequency converter, scrapper conveyor tail frequency converter, centralized control center gathers each frequency converter by data communication
Running current, and the running frequency of each frequency converter can be adjusted in real time, when scrapper conveyor, elevating conveyor inverter start up are to specified
After running frequency, control method of the centralized control center according to elevating conveyor running current to scrapper conveyor frequency converter timing, including scrapper conveyor
Unloaded low speed control, the control of scrapper conveyor rising film condensation, scrapper conveyor reduction of speed：
Scrapper conveyor low speed controls：When elevating conveyor running current continuous service is in no-load current, scrapper conveyor frequency converter is controlled
Idling frequency operation is maintained, other speed regulating control flows are carried out until elevating conveyor electric current is more than no-load current；
Scrapper conveyor rising film condensation：When elevating conveyor running current is more than no-load current and is less than lower current, scraper plate is controlled
The rise frequency operation of machine frequency converter, top out frequency when elevating conveyor running current is more than running current, and controls
Scrapper conveyor frequency converter maintains current frequency operation；
Scrapper conveyor reduction of speed controls：When elevating conveyor running current exceedes upper limit current, control scrapper conveyor frequency converter reduces frequency
Rate is run, and stops reducing frequency when elevating conveyor running current is less than running current, and control scrapper conveyor frequency converter to tie up
Hold current frequency operation.
Patent beneficial effect of the present invention is：In the case where additionally installing coal additional and measuring examination sensor, using fuzzy control side
Method, the intelligent regulator of drag conveyor is realized by the running current according to elevating conveyor of centralized control center, not only simplify intelligence
The configuration of governing system, the reliability for improving system, the service efficiency of equipment is improved, reduce abrasion and the energy of equipment
Waste.
Technical scheme is described in detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings：
Fig. 1 systems composition figure
Fig. 2 speed regulating control flow charts
Embodiment：
As shown in Figure 1, system includes centralized control center, elevating conveyor frequency converter, scrapper conveyor head frequency converter, the change of scrapper conveyor tail
Frequency device, carries out real-time data communication between centralized control center and each frequency converter, centralized control center can gather each frequency converter
Service data includes running current, and centralized control center can control the running frequency of each frequency converter, carries out rise frequency, reduces frequency
Rate controls, and is wherein communicated between scrapper conveyor head, tail frequency converter as principal and subordinate, centralized control center is as an equipment
It is controlled, centralized control center has centralized displaying, control process parameter setting and manual, automatic control function.
According to different field conditions, fully-mechanized mining working is supporting and the difference of installed capacity in centralized control center, it is necessary to preset
The systematic parameter relevant with intelligent speed-regulating includes：
Elevating conveyor no-load current：Elevating conveyor is in the running current of motor under Light Condition；
Elevating conveyor lower current：Elevating conveyor is under transporting coal state, the operating current in the case of freight volume wretched insufficiency；
Elevating conveyor upper limit current：Work when elevating conveyor reaches overload or current coal amount reaches belt feeder limit freight volume
Electric current；
Elevating conveyor normal current：Elevating conveyor freight volume reaches operating current ideally；
Scrapper conveyor idling frequency：The running frequency set when scrapper conveyor zero load, both reduces equipment under the frequency
Abrasion, the energy consumption of equipment is reduced again.
Speed regulating control flow is carried out after rated speed is reached after elevating conveyor, scrapper conveyor start：
As shown in Figure 2：
(1) centralized control centers monitor the running current of elevating conveyor in real time, when continuously less than the no-load current of setting, explanation
Elevating conveyor, scrapper conveyor are in no-load running state for a long time, and control scrapper conveyor frequency converter runs on the idling frequency of setting.
(2) illustrates that scraper plate machine-made egg-shaped or honey-comb coal briquets amount is excessive, passes through reduction when elevating conveyor running current is more than the upper limit current of setting
The running frequency of scrapper conveyor frequency converter reduces the freight volume of elevating conveyor, and with the reduction of the scrapper conveyor speed of service, elevating conveyor loads
The reduction of coal amount, elevating conveyor running current constantly decline, and when elevating conveyor electric current is less than the normal current value of setting, stopping reduction being scraped
The trigger speed of service, it is set to maintain present speed operation.
(3) illustrates that scraper plate machine-made egg-shaped or honey-comb coal briquets amount is smaller, passes through raising when elevating conveyor running current is less than the lower current of setting
The running frequency of scrapper conveyor frequency converter increases the freight volume of elevating conveyor, when elevating conveyor electric current is more than the normal current value formula of setting,
Stop improving the scrapper conveyor speed of service, it is maintained present speed operation.
Claims (1)
1. a kind of underground coal mine frequency conversion drag conveyor intelligent regulator control system, including centralized control center, elevating conveyor frequency converter, scrape
Trigger head frequency converter, scrapper conveyor tail frequency converter, centralized control center gather the running current of each frequency converter by data communication,
And the running frequency of each frequency converter can be adjusted in real time, it is characterised in that when scrapper conveyor, elevating conveyor inverter start up are to specified
After running frequency, control method of the centralized control center according to elevating conveyor running current to scrapper conveyor frequency converter timing, including scrapper conveyor
Unloaded low speed control, the control of scrapper conveyor rising film condensation, scrapper conveyor reduction of speed：
Scrapper conveyor low speed controls：When elevating conveyor running current continuous service is in no-load current, control scrapper conveyor frequency converter maintains
Run in idling frequency, other speed regulating control flows are carried out until elevating conveyor electric current is more than no-load current；
Scrapper conveyor rising film condensation：When elevating conveyor running current is more than no-load current and is less than lower current, control scrapper conveyor becomes
The rise frequency operation of frequency device, top out frequency when elevating conveyor running current is more than running current, and controls scraper plate
Machine frequency converter maintains current frequency operation；
Scrapper conveyor reduction of speed controls：When elevating conveyor running current exceedes upper limit current, control scrapper conveyor frequency converter reduces frequency fortune
OK, stop reducing frequency when elevating conveyor running current is less than running current, and control scrapper conveyor frequency converter to maintain to work as
Preceding frequency operation；
Wherein：Elevating conveyor no-load current：Elevating conveyor is in the running current of motor under Light Condition；
Elevating conveyor lower current：Elevating conveyor is under transporting coal state, the operating current in the case of freight volume wretched insufficiency；
Elevating conveyor upper limit current：Work electricity when elevating conveyor reaches overload or current coal amount reaches belt feeder limit freight volume
Stream；
Elevating conveyor normal current：Elevating conveyor freight volume reaches operating current ideally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989692.0A CN107697598A (en) | 2017-10-12 | 2017-10-12 | A kind of frequency conversion drag conveyor Intelligent speed-adjustable control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989692.0A CN107697598A (en) | 2017-10-12 | 2017-10-12 | A kind of frequency conversion drag conveyor Intelligent speed-adjustable control system |
Publications (1)
| Publication Number | Publication Date |
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| CN107697598A true CN107697598A (en) | 2018-02-16 |
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| CN201710989692.0A Pending CN107697598A (en) | 2017-10-12 | 2017-10-12 | A kind of frequency conversion drag conveyor Intelligent speed-adjustable control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110271836A (en) * | 2018-12-03 | 2019-09-24 | 中煤张家口煤矿机械有限责任公司 | A kind of coal mine isomery driving scraper conveying equipment control system and method |
| CN111663959A (en) * | 2020-05-07 | 2020-09-15 | 中国矿业大学 | Intelligent speed regulating system and method for coal stream transportation of underground fully mechanized caving face of coal mine |
| CN114194750A (en) * | 2021-12-29 | 2022-03-18 | 国家能源集团宁夏煤业有限责任公司枣泉煤矿 | Intelligent speed regulation method and system for full coal flow transportation of intelligent working face |
| CN114988024A (en) * | 2022-06-09 | 2022-09-02 | 北京天地华泰矿业管理股份有限公司 | Fully mechanized coal mining face scraper conveying speed regulation control system and method |
| CN115283122A (en) * | 2022-07-08 | 2022-11-04 | 上海山潜智能科技有限公司 | Speed regulating method of conveyor |
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| CN104444211A (en) * | 2014-09-30 | 2015-03-25 | 宁夏天地奔牛实业集团有限公司 | Method for intelligently adjusting speed of working face scraper conveyer under coal mine |
| CN106194179A (en) * | 2016-07-11 | 2016-12-07 | 太原理工大学 | A kind of underground coal mine fully-mechanized mining working produces equipment automatic halt control method |
| EP3100965A1 (en) * | 2014-01-27 | 2016-12-07 | Bridgestone Corporation | Sensor, and monitoring system |
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| CN202717288U (en) * | 2012-08-06 | 2013-02-06 | 中国神华能源股份有限公司 | Mine scraper plate conveying control system |
| CN103144936A (en) * | 2013-02-05 | 2013-06-12 | 中国矿业大学 | Intelligent control system and control method for scraper conveyer |
| EP3100965A1 (en) * | 2014-01-27 | 2016-12-07 | Bridgestone Corporation | Sensor, and monitoring system |
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| CN106194179A (en) * | 2016-07-11 | 2016-12-07 | 太原理工大学 | A kind of underground coal mine fully-mechanized mining working produces equipment automatic halt control method |
| CN106842918A (en) * | 2016-12-23 | 2017-06-13 | 中煤张家口煤矿机械有限责任公司 | A kind of computational methods of the real-time coal amount of drag conveyor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110271836A (en) * | 2018-12-03 | 2019-09-24 | 中煤张家口煤矿机械有限责任公司 | A kind of coal mine isomery driving scraper conveying equipment control system and method |
| CN110271836B (en) * | 2018-12-03 | 2023-08-22 | 中煤张家口煤矿机械有限责任公司 | Control system and method for heterogeneous driving scraper conveying equipment of coal mine |
| CN111663959A (en) * | 2020-05-07 | 2020-09-15 | 中国矿业大学 | Intelligent speed regulating system and method for coal stream transportation of underground fully mechanized caving face of coal mine |
| CN114194750A (en) * | 2021-12-29 | 2022-03-18 | 国家能源集团宁夏煤业有限责任公司枣泉煤矿 | Intelligent speed regulation method and system for full coal flow transportation of intelligent working face |
| CN114988024A (en) * | 2022-06-09 | 2022-09-02 | 北京天地华泰矿业管理股份有限公司 | Fully mechanized coal mining face scraper conveying speed regulation control system and method |
| CN115283122A (en) * | 2022-07-08 | 2022-11-04 | 上海山潜智能科技有限公司 | Speed regulating method of conveyor |
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Application publication date: 20180216 |