CN106984073A - Nonmetallic chain-type mud scraper failure detector - Google Patents
Nonmetallic chain-type mud scraper failure detector Download PDFInfo
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- CN106984073A CN106984073A CN201710339965.7A CN201710339965A CN106984073A CN 106984073 A CN106984073 A CN 106984073A CN 201710339965 A CN201710339965 A CN 201710339965A CN 106984073 A CN106984073 A CN 106984073A
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- switch
- normal open
- auxiliary reclay
- time relay
- open switch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/30—Control equipment
- B01D21/302—Active control mechanisms with external energy, e.g. with solenoid valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/18—Construction of the scrapers or the driving mechanisms for settling tanks
- B01D21/22—Safety mechanisms
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Control Of Conveyors (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The present invention relates to a kind of nonmetallic chain-type mud scraper failure detector, it is characterised in that the failure detector includes induction metal plate, and every piece of scraper plate two ends are mounted on induction metal plate；Inductive proximity switch, processing pool wall both sides are symmetrically installed with two inductive proximity switch, and detection means control cabinet is sent to for sensing the induction metal plate, and by the signal sensed；Detection means control cabinet, the detection means control cabinet judges the signal sent according to the electromagnetic type inductive proximity switch on processing pool wall both sides, judges whether scraper plate is advanced normal.The advantage of the invention is that：In the case of original Control protection system is not changed, add distortion, come off and this 3 kinds of defencive functions of chain rupture, and be equally to employ original relay control system, making between the two can slitless connection.
Description
Technical field
The present invention relates to sewage treatment area, and in particular to a kind of nonmetallic chain-type mud scraper failure detector, special
The malfunction that nonmetallic chain-type mud scraper scraper plate is advanced can not recognized.
Background technology
Current sewage treatment plant is only being overloaded using the relay―contact control protection system of nonmetallic chain-type mud scraper
In the case of, its shear pin breaks and touches limit switch and export and alarm that mud scraper is out of service.And when mud scraper scraper plate occurs
When distorting, come off with chain rupture malfunction, original designed relay―contact control protection system can not stop mud scraper
Operation.
Because the nonmetallic chain-type mud scraper for protecting system with relay―contact control at present does not detect scraper plate failure
The function of situation, so when there is distortion, come off with chain rupture in scraper plate, it is impossible in time that mud scraper is out of service, therefore scraper plate
Can be because mud scraper be all dragged to together without stopping in time, now the component such as the scraper plate of mud scraper, chain can all be broken
It is bad, and cause greatly increasing for maintenance fund and maintenance cycle.
The content of the invention
It is an object of the invention to provide a kind of nonmetallic chain-type mud scraper failure detector, original designed
On the basis of relay control system defencive function, add the distortion of scraper plate, come off and chain rupture failure protection function, when scraping
When mud machine scraper distortion occurs, come off with chain rupture failure situation, the operation of mud scraper can be timely found and stopped.Maximum journey
The reduction subsequent maintenance fund and maintenance cycle of degree.
To achieve these goals, the technical scheme is that：A kind of nonmetallic chain-type mud scraper fault detect dress
Put, it is characterised in that the failure detector includes
Induction metal plate, every piece of scraper plate two ends are mounted on induction metal plate；
Inductive proximity switch, processing pool wall both sides are symmetrically installed with two inductive proximity switch, for sensing the sensing metal
Piece, and the signal sensed is sent to detection means control cabinet；
Detection means control cabinet, the detection means control cabinet judges the electromagnetic type inductive proximity switch according to processing pool wall both sides
The signal of transmission, judges whether scraper plate is advanced normal.
According to a preferred embodiment of the invention, described inductive proximity switch is from nonmetallic chain-type mud scraper reductor water
Flat distance is 1-2m；From gap 1-3cm above scraper plate.
According to a preferred embodiment of the invention, the circuit of the detection means control cabinet is as follows：
First auxiliary reclay and the first inductive proximity switch are connected in series in both ends of power；
Second auxiliary reclay and the second inductive proximity switch are connected in series in both ends of power；
When after the first normal open switch of the first auxiliary reclay is in parallel with the first normal open switch of very first time relay with first
Between the delay of relay disconnect normally-closed contact and very first time relay coil and be connected on both ends of power；
When after the first normal open switch of the second auxiliary reclay is in parallel with the first normal open switch of second time relay with second
Between the delay of relay disconnect normally-closed contact and the second time relay coil and be connected on both ends of power；
Second normal open switch of very first time relay, the second normal open switch of second time relay and the 3rd auxiliary reclay
Coil be connected on the two ends of power supply；
One end of the normal open switch of breaker and one end of power supply are connected, and the other end of the normal open switch of breaker is respectively with the 3rd
One end of auxiliary reclay normally closed switch, one end of first the second normal open switch of auxiliary reclay, the second auxiliary reclay second
One end connection of normal open switch, the other end of the 3rd auxiliary reclay normally closed switch is connected by the coil of the 3rd time relay
To the other end of power supply, the other end of first the second normal open switch of auxiliary reclay, second the second normal open switch of auxiliary reclay
The other end other end of power supply is connected to by the coil of the 4th time relay；
The timing closing normally opened contact of 3rd time relay and the timing closing normally opened contact of the 4th time relay are connected in parallel on
Among original relay contact Protection control system on the normally opened contact of electrothermal relay.
According to a preferred embodiment of the invention, the delay of the 3rd time relay disconnects normally closed switch, the 4th time relay
The delay of device disconnects normally closed switch and signal lamp is connected on the two ends of power supply.
The advantage of the invention is that：In the case of original Control protection system is not changed, distortion is added, comes off and breaks
This 3 kinds of defencive functions of chain, and be equally to employ original relay control system, making between the two can slitless connection.
The present invention in time stops mud scraper with alarm is accurately sent later, and fault-signal is sent into Central Control Room, reduces and scrapes
The large-scale damage of plate and chain.Long-term popularization and application, will save human cost, improve operating efficiency；Maintenance fund is saved, is had
Effect control cost；Reduce maintenance cycle.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the circuit diagram of monitoring device control cabinet of the present invention.
Figure includes：
Reductor 1, scraper plate 2, conduction chain 3, left electromagnetic type inductive proximity switch 4, right electromagnetic type inductive proximity switch 5, left sense
Answer sheet metal 6, right induction metal plate 7, processing pond 8, driving chain 9.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As illustrated, a kind of nonmetallic chain-type mud scraper failure detector, nonmetallic chain-type mud scraper includes place
Manage to be provided between two conduction chains 3, two conduction chains 3 in pond 8, processing pond 8 and several scraper plates 2 are set, it is described
Conduction chain 3 is connected by driving chain 9 with reductor 1, and conduction chain 3 is driven by reductor 1, so as to drive hanging plate 2 at place
Reason is moved in pond 8, it is characterised in that the failure detector includes
Induction metal plate, every piece of scraper plate two ends are mounted on induction metal plate, respectively left induction metal plate 6, right sensing metal
Piece 7；
Inductive proximity switch, the wall both sides of processing pond 8 are symmetrically installed with two inductive proximity switch（Respectively left electromagnetic type sensing connects
Nearly switch 4, right electromagnetic type inductive proximity switch 5）, it is sent to for sensing the induction metal plate, and by the signal sensed
Detection means control cabinet；
Detection means control cabinet, what the detection means control was sent according to the electromagnetic type inductive proximity switch on processing pool wall both sides
Signal, judges whether scraper plate is advanced normal.
The detection means control cabinet judges whether while receiving the electromagnetic type inductive proximity switch on processing pool wall both sides
The signal of transmission, is then to judge that scraper plate is advanced normally, otherwise judges that scraper plate is advanced abnormal；When in certain time, pool wall two is handled
The electromagnetic type inductive proximity switch on side does not sense the induction metal plate at scraper plate two ends, or senses scraper plate two ends always
Induction metal plate, then it is assumed that scraper plate is advanced abnormal.
According to a preferred embodiment of the invention, described left electromagnetic type inductive proximity switch 4 scrapes mud from nonmetallic chain-type
The horizontal range of machine reductor 1 is 1-2m；From the top gap 1-3cm of scraper plate 2.
When nonmetallic chain-type mud scraper reductor 1 is run, scraper plate 2 is normally advanced, and two induction metal plates can scraped
When plate 2 is advanced to immediately below two electromagnetic type proximity switches, trigger signal is simultaneously transferred to detection means control cabinet, goes round and begins again
Operation.Detection means control cabinet have received the two ends traveling signal of scraper plate 2 simultaneously, that is, be judged as normal.When scraper plate 2 is turned round
It is bent, when coming off with chain rupture state, two electromagnetic type inductive proximity switch do not sense the two ends sensing metal on scraper plate 2 simultaneously
Piece does not sense two ends induction metal plate in set time range, and such detection means control cabinet is to be judged as
Failure.
The detection means control cabinet told protects system using relay―contact control, mainly by the time relay, it is middle after
The components such as electrical equipment, 24V power modules and breaker constitute, its electrical schematic diagram referring to Fig. 2, the detection means control cabinet
Circuit is as follows：
First auxiliary reclay KA1 is connected in series in both ends of power with left electromagnetic type inductive proximity switch 4；
Second auxiliary reclay KA2 is connected in series in both ends of power with right electromagnetic type inductive proximity switch 5；
First normal open switch KA1-1 of the first auxiliary reclay is in parallel with the first normal open switch KT1-1 of very first time relay
Normally-closed contact is disconnected with very first time relay KT1 delay and very first time relay KT1 coil is connected on both ends of power afterwards；
First normal open switch KA2-1 of the second auxiliary reclay is in parallel with the first normal open switch KT2-1 of second time relay
Normally-closed contact is disconnected with the second time relay KT2 delay and the second time relay KT2 coils are connected on both ends of power afterwards；
Second normal open switch KT1-2 of very first time relay, the second normal open switch KT2-2 and the 3rd of second time relay
Auxiliary reclay KA3 coil is connected on the two ends of power supply；
One end of circuit breaker Q F normal open switch and one end of power supply are connected, the other end of circuit breaker Q F normal open switch respectively with
3rd auxiliary reclay normally closed switch KA3-1 one end, first the second normal open switch of auxiliary reclay KA1-2 one end, second
The second normal open switch of auxiliary reclay KA2-2 one end connection, the 3rd auxiliary reclay normally closed switch KA3-1 other end passes through
3rd time relay KT3 coil is connected to the other end of power supply, and first the second normal open switch of auxiliary reclay KA1-2's is another
One end, second the second normal open switch of the auxiliary reclay KA2-2 other end are connected to by the 4th time relay KT4 coil
The other end of power supply；
The delay of 3rd time relay disconnects normally closed switch KT3-1, the delay of the 4th time relay disconnects normally closed switch
KT4-1 and signal lamp HG are connected on the two ends of power supply；
The timing closing normally opened contact KT3-2 of 3rd time relay and the timing closing normally opened contact of the 4th time relay
KT4-2 is connected in parallel among original relay contact Protection control system on the normally opened contact of electrothermal relay.
Its control principle is as follows：
When nonmetallic chain-type mud scraper is normally run, the scraper plate 2 in Fig. 1 is advanced to immediately below two electromagnetic type proximity switches
When, trigger signal and the first auxiliary reclay KA1 and the second auxiliary reclay KA2 that are transferred in detection means control cabinet, Fig. 2
Act respectively once, its normally opened contact KA1-1 and KA2-1 become normally-closed contact, very first time relay KT1 and the second time relay
Device KT2 coils obtain electric, and it instantaneously closes normally opened contact KT1-1 and KT2-1 closure, and to very first time relay KT1 and second
Time relay KT2 realizes self-locking and starts timing.KT1-2 and KT2-2 be also in the middle of instantaneous closure normally opened contact, i.e., the 3rd after
Electrical equipment KA3 obtains electric, and its normally-closed contact KA3-1 disconnects, then the 3rd time relay KT3 power-off restorations.Circuit breaker Q F is in non-
Metal bracelet formula mud scraper is closed after bringing into operation, so that time relay KT3 must establish beginning timing by cable, timing time is adjustable.Just
Often during operation, when the scraper plate 2 in Fig. 1 is passed through immediately below two electromagnetic type proximity switches every time, the auxiliary reclay in Fig. 2
KA3 will obtain it is electric triggering once so that realize to time relay KT3 reset, the operation gone round and begun again.
Signal when delay in Fig. 2 disconnects normally-closed contact KT3-1 and KT4-1 one signal lamp HG of series connection, i.e. normal operation
Lamp is bright, and signal lamp goes out when breaking down, the setting of this signal lamp be in order to when break down alarm when, can have intuitively
Observation.
When 2 failure of scraper plate in Fig. 1 occurs in nonmetallic chain-type mud scraper, it is divided to two kinds of failure situations.
The first failure situation：Come off or reductor 1 when there is the chain rupture of conduction chain 3 in Fig. 1, driving chain 9
Shear pin break, now, scraper plate 2 is halted state, so the 3rd auxiliary reclay KA3 on Fig. 2 is because Fig. 1 two electromagnetism
Formula proximity switch do not sense the arrival of the induction metal plate on scraper plate 2 and can not obtain electric triggering, i.e. the 3rd time of Fig. 2 after
Electrical equipment KT3 is because the disconnection without normally-closed contact KA3-1 resets and the trigger action alarm after the time arrival of setting, Fig. 2
In timing closing normally opened contact KT3-2 actions, timing closing normally opened contact KT3-2 is connected in parallel on original relay contact protection control
Among system on the normally opened contact of electrothermal relay, during nonmetallic chain-type mud scraper operation will be stopped and fault-signal is sent to
Control room.
And when chain rupture, release failure situation occurs in nonmetallic chain-type mud scraper, now the scraper plate 2 in Fig. 1 is just
When being traveling in immediately below two electromagnetic type inductive proximity switch, the 3rd time relay KT3 in Fig. 2 can not send failure report
It is alert, but now the first auxiliary reclay KA1 or the second auxiliary reclay KA2 coils be always it is electric, so KA1-2 or
Person KA2-2 normally opened contact is closed, and the 4th time relay KT4 must establish beginning timing by cable, and after timing arrival, timing closing is normal
Contact KT4-2 actions are opened, KT4-2 is connected in parallel among original relay contact Protection control system on the normally opened contact of electrothermal relay,
Nonmetallic chain-type mud scraper will be stopped to run and fault-signal is sent into Central Control Room.
Second of failure situation：When in Fig. 1 scraper plate 2 occur distortion failure when, no matter which kind of twisted state, scraper plate 2
Two induction metal plates above always have one and arrived first the one of triggering of two electromagnetic type proximity switches first.In Fig. 2
Two time relays KT1 and KT2 set by time for certain meaning the namely report of Fig. 1 middle scrapers distortion angle
Alert point.Because when two time relays KT1 and KT2 are without triggering simultaneously in Fig. 2, auxiliary reclay KA3 can not obtain electric, then
Power-off restoration can not be realized to time relay KT3.Alarm is exported after being reached in the time of setting.
Warning device control when electromagnetic type proximity switch, the time relay or other components occur and damaging in itself
System processed in itself can not normal operation when, now only need to pull off the circuit breaker Q F in Fig. 2, would not influence original
The operation of system, it is ensured that the overall running situation of mud scraper.
Claims (5)
1. a kind of nonmetallic chain-type mud scraper failure detector, it is characterised in that the failure detector includes
Induction metal plate, every piece of scraper plate two ends are mounted on induction metal plate；
Inductive proximity switch, processing pool wall both sides are symmetrically installed with two inductive proximity switch, for sensing the sensing metal
Piece, and the signal sensed is sent to detection means control cabinet；
Detection means control cabinet, the detection means control cabinet judges the electromagnetic type inductive proximity switch according to processing pool wall both sides
The signal of transmission, judges whether scraper plate is advanced normal.
2. a kind of nonmetallic chain-type mud scraper failure detector according to claim 1, it is characterised in that：The inspection
Device control cabinet is surveyed to judge whether while the signal that the electromagnetic type inductive proximity switch for receiving processing pool wall both sides is sent, is then
Judge that scraper plate is advanced normally, otherwise judge that scraper plate is advanced abnormal；When in certain time, the electromagnetic type sensing on processing pool wall both sides connects
Nearly switch does not sense the induction metal plate at scraper plate two ends, or senses the induction metal plate at scraper plate two ends always, then recognizes
Advanced for scraper plate abnormal.
3. a kind of nonmetallic chain-type mud scraper failure detector according to claim 1, it is characterised in that：Described
Inductive proximity switch is 1-2m from nonmetallic chain-type mud scraper reductor horizontal range；From gap 1-3cm above scraper plate.
4. a kind of nonmetallic chain-type mud scraper failure detector according to claim 1, it is characterised in that：The inspection
The circuit for surveying device control cabinet is as follows：
First auxiliary reclay and the first inductive proximity switch are connected in series in both ends of power；
Second auxiliary reclay and the second inductive proximity switch are connected in series in both ends of power；
When after the first normal open switch of the first auxiliary reclay is in parallel with the first normal open switch of very first time relay with first
Between the delay of relay disconnect normally-closed contact and very first time relay coil and be connected on both ends of power；
When after the first normal open switch of the second auxiliary reclay is in parallel with the first normal open switch of second time relay with second
Between the delay of relay disconnect normally-closed contact and the second time relay coil and be connected on both ends of power；
Second normal open switch of very first time relay, the second normal open switch of second time relay and the 3rd auxiliary reclay
Coil be connected on the two ends of power supply；
One end of the normal open switch of breaker and one end of power supply are connected, and the other end of the normal open switch of breaker is respectively with the 3rd
One end of auxiliary reclay normally closed switch, one end of first the second normal open switch of auxiliary reclay, the second auxiliary reclay second
One end connection of normal open switch, the other end of the 3rd auxiliary reclay normally closed switch is connected by the coil of the 3rd time relay
To the other end of power supply, the other end of first the second normal open switch of auxiliary reclay, second the second normal open switch of auxiliary reclay
The other end other end of power supply is connected to by the coil of the 4th time relay；
The timing closing normally opened contact of 3rd time relay and the timing closing normally opened contact of the 4th time relay are connected in parallel on
Among original relay contact Protection control system on the normally opened contact of electrothermal relay.
5. a kind of nonmetallic chain-type mud scraper failure detector according to claim 4, it is characterised in that：When the 3rd
Between relay delay disconnect normally closed switch, the delay of the 4th time relay disconnects normally closed switch and signal lamp and is connected on power supply
Two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710339965.7A CN106984073B (en) | 2017-05-15 | 2017-05-15 | Fault detection device for nonmetal chain type mud scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710339965.7A CN106984073B (en) | 2017-05-15 | 2017-05-15 | Fault detection device for nonmetal chain type mud scraper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106984073A true CN106984073A (en) | 2017-07-28 |
| CN106984073B CN106984073B (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710339965.7A Active CN106984073B (en) | 2017-05-15 | 2017-05-15 | Fault detection device for nonmetal chain type mud scraper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107854872A (en) * | 2017-12-11 | 2018-03-30 | 北京北排装备产业有限公司 | A kind of nonmetallic chain-type mud scraper underwater monitoring device and its application method |
| CN112121517A (en) * | 2020-09-10 | 2020-12-25 | 广西柳州钢铁集团有限公司 | Horizontal magnetic filter walking device protection method |
| CN112915599A (en) * | 2021-01-25 | 2021-06-08 | 宁波宝新不锈钢有限公司 | Monitoring system and monitoring method for chain type transmission mud scraper |
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