CN1231403C - Monitoring protection method for band conveyer adhesive tape broken by current floating difference - Google Patents
Monitoring protection method for band conveyer adhesive tape broken by current floating difference Download PDFInfo
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- CN1231403C CN1231403C CN 02134092 CN02134092A CN1231403C CN 1231403 C CN1231403 C CN 1231403C CN 02134092 CN02134092 CN 02134092 CN 02134092 A CN02134092 A CN 02134092A CN 1231403 C CN1231403 C CN 1231403C
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Abstract
The present invention relates to a rubber belt tearing current floating difference comparing, monitoring and protecting method for a belt conveyer. The present invention solves the problem that a rubber belt is torn to spread quickly to generate great loss because of foreign matter in materials, or the falling of a frame, etc. In the prior art without a monitoring device. The present invention is characterized in that after the belt conveyer is started to run stably, the running current value of a motor and the current value in a unit time are respectively compared in a time delay way. If the difference exceeds a set alarm value N, the alarm is started, and the belt conveyer stops immediately when an abnormity is found. If the difference exceeds a set trip value M, a stop signal is emitted. Therefore, the labor intensity of workers is reduced, the cost is reduced, and the safety factor of the device is improved. The present invention can be used for monitoring the operating condition of a conveying rubber belt of a belt conveyer for industrial and mining enterprise production lines.
Description
Technical field the present invention relates to a kind of monitoring protection method of feedway, and the conveyor belt running of using on particularly a kind of industrial and mining enterprises operating line is torn the contrastive detection guard method of current floating difference position.
Background technology belt conveyer of the prior art its objective is material, as conveyings of changing places such as coals.Its structure is to be made of devices such as drive motor, driving wheel, heavy driving wheel, frame and adhesive tape placed on it, tensions.Its weak point is because no actv. monitoring and protecting device, the foreign material in the material or because of reasons such as frame comes off cause adhesive tape to tear also rapid spread leads to bigger loss.
Summary of the invention technical solution of the present invention is: start stable back (3～5 second) beginning power taking machine running current value at belt conveyer, compare (time is adjustable) respectively with the current value time-delay in the unit time thereafter, pass relatively with the motor time of run always by this rule.Press the belt conveyer attribute and set alarming value N
x(adjustable), the motor operating current value of time-delay is compared with motor current value thereafter, if its difference surpasses the alarming value N that sets
xThe time, reporting to the police starts, and reminds the staff that this equipment is carried out emphasis and monitors that then hard stop notes abnormalities; Press the belt conveyer attribute in addition and set trip value M
x(adjustable), the motor operating current value of time-delay compares with motor current value thereafter, if its difference surpasses the trip value M that sets
xThe time, send shutdown signal.
The advantage that the present invention is had compared to existing technology is: the alarming value N that gears to actual circumstances reasonably is set
xWith trip value M
xCan effectively discern the adhesive tape of sealing-tape machine current break tears.Adopt the motor current value rangeability to judge whether adhesive tape is torn, thereby send correct warning or shutdown signal has reduced staff's labour intensity, reduced cost, saved the time, improved the safety factor of equipment.
This accompanying drawing of description of drawings is an integral structure circuit connection diagram of the present invention.Scope is a micro controller system shown in the dotted line 23 wherein.
Embodiment the present invention provides embodiment below in conjunction with accompanying drawing: electrical motor simple phase current transformer 1 links to each other with current transducer 2.The first via of current transducer 2 is successively with current of electric tripping operation setting value 11 or door 20, link to each other with acoustic-optic alarm 18 with door 21.Current transducer 2 the second the tunnel successively with adder-subtractor 7, current of electric rangeability setting value 12 or door 19, link to each other with tripping operation electrical motor 25 with door 22, tripping operation electrical motor actuating unit 24, the Third Road of current transducer 2 successively with signal lag conveyer (3), adder-subtractor 7, current of electric rangeability setting value 12 with or 19 link to each other.Current transducer 2 the four the tunnel successively with adder-subtractor 8, current of electric rangeability setting value 14 with or door 19 link to each other.Current transducer 2 the five the tunnel successively with adder-subtractor 9, current of electric rangeability setting value 16 with or door 19 link to each other.Another road of signal lag conveyer 3 links to each other with adder-subtractor 8 with signal lag conveyer 4 successively.Another road of signal lag conveyer 4 links to each other with adder-subtractor 8 with signal lag conveyer 5 successively.Another road of adder-subtractor 7 successively with current of electric rangeability setting value 13 or door 20 with link to each other with door 21, another road of adder-subtractor 8 links to each other with current of electric rangeability setting value 15 or 20 successively.Another road of adder-subtractor 9 successively with current of electric rangeability setting value 17 with or door 20 link to each other.Link to each other successively with door 21, time relay 10 and motor on-off switch auxiliary contact 6 with another road of door 22.The current current value that is transmitted by current transducer 2 during work is compared with current of electric tripping operation setting value 11, surpasses current of electric tripping operation setting value 11 as its value, then through or door 20, with the 21 alert signals of transmitting messages.Current value through signal lag conveyer 3 is compared with current current value, reaches current of electric tripping operation setting value 13 as exceedance, then through or door 20, with the door 21 alert signal of transmitting messages.Reach current of electric tripping operation setting value 12 as exceedance, then through or door 19, send shutdown signal with door 22.Signal lag conveyer 4 and signal lag conveyer 5 are all analogized by this rule.Adopt Programmable Logic Controller (PLC) or dispersing control system (DCS) to realize the contrast of current floating difference position.The tripping operation of current of electric among the present invention setting value 11, current of electric rangeability setting value 12～17 and signal lag conveyer 3～5, time relay 10 is all adjustable.Can monitor for the transferring adhesive tape working condition on the belt conveyer that industrial and mining enterprises' operating line is used.
Claims (3)
1, a kind of conveyor belt running is torn the contrastive detection guard method of current floating difference position; it is characterized in that after the belt conveyer startup is stable, beginning power taking machine running current value; compare respectively with the current value time-delay in the unit time thereafter; pass relatively with the motor time of run by this rule always, press the belt conveyer attribute and set alarming value N
XThe motor operating current value of time-delay is compared with motor current value thereafter, if its difference surpasses the alarming value N that sets
XThe time, reporting to the police starts, and presses the belt conveyer attribute in addition and sets trip value M
X, the motor operating current value of time-delay compares with motor current value thereafter, if its difference surpasses the trip value M that sets
XThe time, send shutdown signal.
2; tear the contrastive detection guard method of current floating difference position according to the conveyor belt running described in the claim 1; it is characterized in that electrical motor simple phase current transformer (1) links to each other with current transducer (2); the first via of current transducer (2) successively with current of electric tripping operation setting value (11); or door (20); link to each other with acoustic-optic alarm (18) with door (21); current transducer (2) the second the tunnel successively with adder-subtractor (7); current of electric rangeability setting value (12); or door (19); with door (22); tripping operation electrical motor actuating unit (24) links to each other with tripping operation electrical motor (25); the Third Road of current transducer (2) successively with signal lag conveyer (3); adder-subtractor (7); current of electric rangeability setting value (12) with or the door (19) link to each other; current transducer (2) the four the tunnel successively with adder-subtractor (8); current of electric rangeability setting value (14) with or the door (19) link to each other; current transducer (2) the five the tunnel successively with adder-subtractor (9); current of electric rangeability setting value (16) with or the door (19) link to each other; another road of signal lag conveyer (3) links to each other with adder-subtractor (8) with signal lag conveyer (4) successively; another road of signal lag conveyer (4) links to each other with adder-subtractor (8) with signal lag conveyer (5) successively; another road of adder-subtractor (7) successively with current of electric rangeability setting value (13); or the door (20) with link to each other with door (21); another road of adder-subtractor (8) successively with current of electric rangeability setting value (15); or door (20) links to each other; another road of adder-subtractor (9) successively with current of electric rangeability setting value (17) with or door (20) link to each other, with another road of door (22) successively with door (21); time relay (10) links to each other with motor on-off switch auxiliary contact (6).
3, tear the contrastive detection guard method of current floating difference position according to the conveyor belt running described in the claim 2, it is characterized in that current of electric tripping operation setting value (11), current of electric rangeability setting value (12～17) and signal lag conveyer (3～5), time relay (10) is all adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02134092 CN1231403C (en) | 2002-11-15 | 2002-11-15 | Monitoring protection method for band conveyer adhesive tape broken by current floating difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02134092 CN1231403C (en) | 2002-11-15 | 2002-11-15 | Monitoring protection method for band conveyer adhesive tape broken by current floating difference |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1413896A CN1413896A (en) | 2003-04-30 |
| CN1231403C true CN1231403C (en) | 2005-12-14 |
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ID=4747555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02134092 Expired - Fee Related CN1231403C (en) | 2002-11-15 | 2002-11-15 | Monitoring protection method for band conveyer adhesive tape broken by current floating difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1231403C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053616B (en) * | 2012-01-23 | 2016-05-25 | Abb技术有限公司 | Be used for the system and method for the situation of monitoring conveyer belt |
| CN102989374A (en) * | 2012-11-19 | 2013-03-27 | 江苏三木集团有限公司 | Fully enclosed solid material feeding system and feeding method |
| CN103818697B (en) * | 2014-03-12 | 2015-10-28 | 中国黄金集团内蒙古矿业有限公司 | The guard method of band conveyor and band conveyor fender guard |
| CN106044109B (en) * | 2016-07-18 | 2018-08-03 | 大连理工大学 | The anti-tear monitoring system of conveyer belt |
-
2002
- 2002-11-15 CN CN 02134092 patent/CN1231403C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1413896A (en) | 2003-04-30 |
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