CN201508481U - Safe detecting system of mid-speed grinding separator - Google Patents
Safe detecting system of mid-speed grinding separator Download PDFInfo
- Publication number
- CN201508481U CN201508481U CN2009202172134U CN200920217213U CN201508481U CN 201508481 U CN201508481 U CN 201508481U CN 2009202172134 U CN2009202172134 U CN 2009202172134U CN 200920217213 U CN200920217213 U CN 200920217213U CN 201508481 U CN201508481 U CN 201508481U
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- detecting system
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Abstract
The utility model provides a safe detecting system of a mid-speed grinding separator, belonging to the automatic control field, and solving the problem that the running state judged by the indirectly-detected running state signal of the mid-speed grinding separator, is not the actual running state sometimes, thus the operation fault of the mid-speed grinding separator is unable to be found in time, thus the control operation to the mid-speed grinding separator and relevant apparatus and production is misplayed. A speed sensor adopts an inductor type proximity switch, a metal body is arranged at the edge of a drive pulley of the mid-speed grinding separator, the output terminal of the inductor type proximity switch is connected with the input terminal of a PLC controlling management circuit, the output terminal of the PLC controlling management circuit is connected with the input terminal of an alarming unit. According to the utility model, the running state of the mid-speed grinding separator can be directly judged accurately, when the fault appears, the safe detecting system alarms to remind the operator, the safe detecting system has low cost, simple structure, reliable and stabilizing performance, strong practicability, and easy accomplishment and promotion.
Description
Technical field
The utility model relates to automation field, is specifically related to a kind of safety detecting system of medium-speed pulverizer separation vessel, more specifically relates to a kind of safety detecting system of direct detection medium-speed pulverizer separation vessel duty.
Background technology
At present, in the various transformation process to equipment, the PLC control technology applies to produce in the reality in a large number, gathers from the auxilliary point of contactor and the equipment running status signal is often many, and various programmed protections etc. are also all undertaken chain by this signal.She Ji maximum disadvantage is like this: the actual motion state of equipment might be inconsistent with the state of contactor; in the actual use; possible contactor does not disconnect; and equipment is owing to reasons such as belt slip, fracture or disconnect couplings; cause actual stall or rotating speed to reduce; be in malfunction, program should in time be protected shutdown.Because not disconnection of contactor; the equipment running status signal that PLC takes from the auxilliary point of contactor still shows normal condition, can't in time find and protect shutdown, so to some equipment; especially for some key equipments, very likely cause great influence.In the former Control System Design of medium-speed pulverizer, medium-speed pulverizer separation vessel operating state signal is got from separation vessel motor contactor auxiliary contact exactly, in case the catcher between separation vessel motor and the reductor breaks down, the not stall of separation vessel motor, contactor does not disconnect yet, and medium-speed pulverizer separation vessel reality this moment stops operating.If operating personnel can not in time find, adopt an effective measure rapidly, big beans pruinescence is drawn in the Pulverized Coal Bin, cause coal spraying pipeline to stop up, influence the normal coal powder injection of blast furnace even cause blast furnace to stop coal.
The utility model content
The utility model for solve because of according to indirect detection to the running status judged of medium-speed pulverizer separation vessel operating state signal, sometimes be not the actual motion state, so the operation of medium-speed pulverizer separation vessel can not in time be found when breaking down, and the problem of bringing to the control operation error of itself and relevant device and production, adopt automatic control technology, provide a kind of simple in structure, drop into little, practical, dependable performance is stable, the safety detecting system of the easy to implement and medium-speed pulverizer separation vessel promoted, directly detect and gather its operating state signal, accurately obtain its actual running status, be convenient in time find and handling failure.
For addressing the above problem, technical solution adopted in the utility model is: a kind of safety detecting system of medium-speed pulverizer separation vessel, comprise speed pickup in the structure, have PLC control and management circuit, the alarm unit of supporting process management software, its improvement is that described speed pickup adopts inductance approach switch, the drive pulley edge of medium-speed pulverizer separation vessel is provided with the metallic object that triggers element as electromagnetism, the input end of the output termination PLC control and management circuit of inductance approach switch, the input end of the output terminal unit taking alarm of PLC control and management circuit
Adopt the beneficial effect that technique scheme produced to be: on the drive pulley edge of medium-speed pulverizer separation vessel, metallic object to be set, inductance approach switch detects in the distance near being located at drive pulley, can periodically respond to passing through of metallic object, and to PLC control and management circuit transmission pulse signal, judge its actual running status through the supporting process management software processes that PLC control and management circuit has, send control signal corresponding and drive the alarm unit warning when the fault of stall or rotating speed reduction appears in the operation of medium-speed pulverizer separation vessel, alert is done timely processing.Need not change little, simple in structure, practical, the easy to implement and popularization of cost to medium-speed pulverizer separation vessel and the original control system of relevant device thereof.Adopt inductance approach switch can directly gather medium-speed pulverizer separation vessel actual motion status signal, make to the control operation of medium-speed pulverizer separation vessel safety and precise more, effectively prevent the damage to medium-speed pulverizer separation vessel and relevant device thereof, carrying out smoothly of guarantee producing, adopt inductance approach switch to realize contactless collection medium-speed pulverizer separation vessel operating state signal,, long service life strong, stable and reliable for performance to environmental suitability.Storage standards tachometer value in the storer of PLC control and management circuit, PLC control and management circuit is followed the pulse signal that sends according to process management software processes inductance approach switch to judge medium-speed pulverizer separation vessel actual speed value and is drawn the running status of medium-speed pulverizer separation vessel after relatively with the rated rotational frequency value, make this safety detecting system detect more accurately, reliable, efficient.Further improve is that PLC control and management circuit judges medium-speed pulverizer separation vessel moves when breaking down, transmit control signal and control the normal opened contact closure of the controlled switch circuit relay electrical equipment in the alarm unit, hummer and power connection are in time reported to the police, alert is done timely processing, prevents misoperation influence production and damage equipment etc.
Description of drawings
Fig. 1 is the utility model theory diagram;
Wherein, 1, speed pickup, 2, PLC control and management circuit, 3, alarm unit, 4, controlled switch circuit.
Embodiment
A kind of safety detecting system of medium-speed pulverizer separation vessel, comprise speed pickup 1 in the structure, have PLC control and management circuit 2, the alarm unit 3 of supporting process management software, it is characterized in that described speed pickup 1 adopts inductance approach switch, the drive pulley edge of medium-speed pulverizer separation vessel is provided with the metallic object that triggers element as electromagnetism, the input end of the output termination PLC control and management circuit 2 of inductance approach switch, the input end of the output terminal unit 3 taking alarm of PLC control and management circuit 2.
Comprise the storer that has the rated rotational frequency value in described PLC control and management circuit 2 structures.
Comprise controlled switch circuit 4 and hummer in described alarm unit 3 structures, the output terminal of PLC control and management circuit 2 is accepted the controlled end of controlled switch circuit 4, the input termination power of controlled switch circuit 4, output termination hummer.
Comprise relay in described controlled switch circuit 4 structures, the output terminal of the coil termination PLC control and management circuit 2 of relay is by the closed hummer energized that realizes of normal opened contact of relay.
With reference to accompanying drawing embodiment of the present utility model is described.
The utility model can be used for detection and the warning to stall of medium-speed pulverizer separation vessel or rotating speed reduction fault, and a metallic object is installed on the drive pulley of medium-speed pulverizer separation vessel, and the installation site does not influence drive pulley work, on the drive pulley edge.Speed pickup 1 adopts inductance approach switch to be installed in to respond to metallic object and does not influence on the correct position of medium-speed pulverizer separation vessel operation, can periodically sense passing through of metallic object when drive pulley moves.The input end of the output termination PLC control and management circuit 2 of inductance approach switch, when the medium-speed pulverizer separation vessel normally moves, its drive pulley is answered normal rotation, metallic object is periodically near inductance approach switch, inductance approach switch is periodically passed to PLC control and management circuit 2 pulse signals, PLC control and management circuit 2 has supporting process management software, according to the concrete ruuning situation of medium-speed pulverizer separation vessel, memory stores rated rotational frequency value to PLC control and management circuit 2, when the drive pulley stall, metallic object may be parked in can be responded to or respond to less than two kinds of positions by inductance approach switch, if metallic object is parked in the position that can be responded to by inductance approach switch during the drive pulley stall, inductance approach switch can send pulse signal to PLC control and management circuit 2 always so, the rated rotational frequency value that reference memory has during the compiling procedure management software is set a suitable time, PLC control and management circuit 2 continuous received pulse signals between at this moment, judge the stall of medium-speed pulverizer separation vessel, if during the drive pulley stall, metallic object is parked in the position that can not be sensed by inductance approach switch, inductance approach switch can not send pulse signal to PLC control and management circuit 2 so, the rated rotational frequency value that reference memory has during the compiling procedure management software is set a suitable time, PLC control and management circuit 2 does not receive pulse signal between at this moment, judge the stall of medium-speed pulverizer separation vessel, when the drive pulley rotating speed reduces, the rated rotational frequency value that but reference memory has during the compiling procedure management software is set a suitable time, PLC control and management circuit 2 does not receive pulse signal between at this moment, judges that medium-speed pulverizer separation vessel rotating speed reduces.When PLC control and management circuit 2 when process management software is judged the medium-speed pulverizer separation vessel and stall or rotating speed are occurred and reduce fault, PLC control and management circuit 2 transmits control signal and drives alarm unit 3 warnings, the specific implementation method is, the normal opened contact closure of the relay in PLC control and management circuit 2 its controlled switch circuit 4 of control, report to the police after making hummer and power connection, remind operating personnel in time to find and processing.
The beneficial effects of the utility model are, and are simple in structure, input is little, practical, dependable performance is stablized, be convenient to implement and promote. For degradation fault under the stall of medium-speed pulverizer separator or even the rotating speed, discovery and warning that can be promptly and accurately effectively prevent operate miss and affect and produce and damage equipment etc.
Claims (4)
1. the safety detecting system of a medium-speed pulverizer separation vessel, comprise speed pickup (1) in the structure, have PLC control and management circuit (2), the alarm unit (3) of supporting process management software, it is characterized in that described speed pickup (1) adopts inductance approach switch, the drive pulley edge of medium-speed pulverizer separation vessel is provided with the metallic object that triggers element as electromagnetism, the input end of the output termination PLC control and management circuit (2) of inductance approach switch, the input end of the output terminal unit taking alarm (3) of PLC control and management circuit (2).
2. the safety detecting system of medium-speed pulverizer separation vessel according to claim 1 is characterized in that comprising the storer that has the rated rotational frequency value in described PLC control and management circuit (2) structure.
3. the safety detecting system of medium-speed pulverizer separation vessel according to claim 1, it is characterized in that comprising controlled switch circuit (4) and hummer in described alarm unit (3) structure, the output terminal of PLC control and management circuit (2) is accepted the controlled end of controlled switch circuit (4), the input termination power of controlled switch circuit (4), output termination hummer.
4. the safety detecting system of medium-speed pulverizer separation vessel according to claim 1, it is characterized in that comprising relay in described controlled switch circuit (4) structure, the output terminal of the coil termination PLC control and management circuit (2) of relay is by the closed hummer energized that realizes of normal opened contact of relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202172134U CN201508481U (en) | 2009-09-23 | 2009-09-23 | Safe detecting system of mid-speed grinding separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202172134U CN201508481U (en) | 2009-09-23 | 2009-09-23 | Safe detecting system of mid-speed grinding separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201508481U true CN201508481U (en) | 2010-06-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202172134U Expired - Fee Related CN201508481U (en) | 2009-09-23 | 2009-09-23 | Safe detecting system of mid-speed grinding separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201508481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896868A (en) * | 2020-06-24 | 2020-11-06 | 新兴铸管股份有限公司 | Motor current centralized monitoring and fault alarm system |
-
2009
- 2009-09-23 CN CN2009202172134U patent/CN201508481U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896868A (en) * | 2020-06-24 | 2020-11-06 | 新兴铸管股份有限公司 | Motor current centralized monitoring and fault alarm system |
| CN111896868B (en) * | 2020-06-24 | 2023-08-15 | 新兴铸管股份有限公司 | Motor current centralized monitoring and fault alarming system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20130923 |