CN102659193B - Over-moment early warning protective method for mechanical slag removal grid machine - Google Patents
Over-moment early warning protective method for mechanical slag removal grid machine Download PDFInfo
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- CN102659193B CN102659193B CN 201210136108 CN201210136108A CN102659193B CN 102659193 B CN102659193 B CN 102659193B CN 201210136108 CN201210136108 CN 201210136108 CN 201210136108 A CN201210136108 A CN 201210136108A CN 102659193 B CN102659193 B CN 102659193B
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Abstract
The invention relates to an over-moment early warning protective method and an over-moment early warning protective device for a mechanical slag removal grid machine. The over-moment early warning protective method comprises the following steps that a moment sensor, a data processing unit and a wireless launching device are arranged on a transmission shaft of the mechanical slag removal grid machine; the moment sensor detects data of moment of the transmission shaft during the running of the transmission shaft in real time, and after being processed by the data processing unit, the data is transmitted to a wireless receiving device by the wireless launching device; the wireless receiving device transmits the data to a programmable logic controller (PLC); and the PLC programmable logic controller analyzes and compares the data with the set moment of the transmission shaft of the mechanical slag removal grid machine in the normal running state, and when the detected moment of the transmission shaft reaches or exceeds the set moment of the transmission shaft in the normal running state, the mechanical slag removal grid machine stops running automatically and sends an alarm signal immediately. By the over-moment early warning protective method and the over-moment early warning protective device, the online detection of transfer torque of the transmission shaft of the mechanical slag removal grid machine is realized, failure prediction and failure alarm can be performed, and equipment automatically stops running, so that the equipment runs safely and reliably.
Description
Technical field
The present invention relates to a kind of early warning guard method and the device of scarfing cinder grid maker when operational process moment is excessive for wastewater treatment, belong to the scarfing cinder grid maker technical field in wastewater treatment.
Background technology
In sewage treatment industry, commonly used to grid (being made by one group of parallel metal grizzly bar or screen cloth), be arranged on the water inlet of foul drainage, pump house sump or the end of sewage treatment plant, in order to suspension or the floating thing of holding back increasing, as fiber, onal, hair, wood chip, pericarp, vegetables, plastic products etc., in order to alleviate the processing load of subsequent treatment structures, and make it normal operation.The material that is trapped is called the grid slag, need to clear up these grid slags, and according to the scarfing cinder mode, grid can be divided into again artificial scarfing cinder grid and mechanical scarfing cinder grid maker.Be to improve work and sanitary condition, when the grid quantity of slag is larger (greater than 0.2m
3/ day), often adopting mechanical scarfing cinder grid maker, mechanical scarfing cinder grid maker commonly used has swinging, back rake type, rotary drum etc. at present.Which kind of mode no matter, its structure are all that motor drives transmission shaft by gear train and rotates, and transmission shaft drives carrier chain or conveying belt operation again, with foreign material by elevating in sewage.
Due to the suspension in sewage or floating thing not of uniform size, especially in municipal wastewater, often contain more paper scrap, polybag, branch etc., cause in above-mentioned mechanical scarfing cinder grid maker operational process, it is excessive that resistance often appears, current of electric is excessive the situation such as causes motor to shut down even to burn, and has reduced the serviceable life of motor, and has been difficult to effectively supervise.Solution for the problems referred to above; mainly depend on manufacturer to transformation, Precision Machining and the increase current over-load protector etc. of the local parts such as bearing; the producer that also has self is provided with the mechanical overload safety guard at mechanical scarfing cinder grid maker; when device fails; shear pin is cut off; can avoid the equipment overwork, the damage equipment parts.But these methods are to improve manufacturing cost or damage equipment is prerequisite, all can not fundamentally carry out early warning and protection to the mistake moment phenomenon of equipment.
Chinese patent CN03205256.1 discloses a kind of " automatic control device for sewage treatment grille ", this device comprises a float chamber that float is arranged, be provided with power switch K1 above float in float chamber, be provided with time relay sj in the voltage circuit of this power switch K1, be parallel with intermediate relay ZJ with time relay sj, a normally closed contact SJK of time relay sj connects with intermediate relay ZJ, and a normal opened contact ZJK of intermediate relay ZJ is in parallel with above-mentioned power switch K1.Compared with prior art, this device can automatically start according to the suspension situation that grid adheres to or close the grid drive motor, reduces operating cost.But this device can only start or close the grid drive motor automatically according to the height situation of suspension, can not carry out early warning and protection to the mistake moment phenomenon of equipment equally.
Summary of the invention
The present invention is directed to and cross the deficiency that the moment resist technology exists in existing machinery scarfing cinder grid maker operational process; provide that a kind of automaticity is high, mechanical scarfing cinder grid maker that can effectively protect equipment is crossed moment early warning guard method, provide simultaneously a kind of and can realize that the mechanical scarfing cinder grid maker of the method crosses the moment early warning protector.
Mechanical scarfing cinder grid maker of the present invention is crossed moment early warning guard method, is:
Mounting torque sensor, data processing unit and wireless launcher on the transmission shaft of mechanical scarfing cinder grid maker make torque sensor be connected with data processing unit, and data processing unit is connected with wireless launcher; Torque sensor detects transmission shaft suffered moment data of when operation in real time, after processing by data processing unit, is constantly sent by wireless launcher; Receive by radio receiver the signal that wireless launcher sends, and carry out data and process, radio receiver is connected with a PLC Programmable Logic Controller, and transfers data to this PLC Programmable Logic Controller, and the start-up circuit of mechanical scarfing cinder grid maker also is connected with this PLC Programmable Logic Controller; After the PLC Programmable Logic Controller receives data; with data in real time with mechanical scarfing cinder grid maker normal operating condition under the transmission shaft Moment analysis set relatively; when the transmission shaft Moment that detects reaches or surpass the transmission shaft Moment of setting under mechanical scarfing cinder grid maker normal operating condition; PLC Controlled by Programmable Controller machinery scarfing cinder grid maker is automatically out of service; and send immediately alerting signal; the prompting staff checks the scene; process, thereby reach the purpose of the mechanical scarfing cinder grid maker of effective protection.
The mechanical scarfing cinder grid maker of realizing said method is crossed the moment early warning protector and is adopted following technical solution:
This prior-warning device, comprise torque sensor, data processing unit, wireless launcher, radio receiver and PLC Programmable Logic Controller, torque sensor is connected with data processing unit, data processing unit is connected with wireless launcher, radio receiver is connected with wireless mode with wireless launcher, and radio receiver is connected with the PLC Programmable Logic Controller.
When said apparatus is used, torque sensor, data processing unit and wireless launcher are arranged on the position that does not affect its rotation on the transmission shaft of mechanical scarfing cinder grid maker, can rotate together with transmission shaft, the start-up circuit of controlling simultaneously mechanical scarfing cinder grid maker operation also is connected with the PLC Programmable Logic Controller.when mechanical scarfing cinder grid maker running work, moment when torque sensor detects the transmission shaft operation in real time, and send to data processing unit to carry out the data processing, then send to radio receiver by wireless launcher, radio receiver is inputted the PLC Programmable Logic Controller with data, after the PLC Programmable Logic Controller receives data, automatically analyze, when mechanical scarfing cinder grid maker transmission shaft moment reaches or surpass the transmission shaft Moment of setting under mechanical scarfing cinder grid maker normal operating condition, PLC Controlled by Programmable Controller machinery scarfing cinder grid maker is out of service, and send immediately alerting signal.
The present invention can realize the online detection of mechanical scarfing cinder grid maker transmission shaft transmitting torque; and with wireless mode emission with accept receipt; the equipment that do not affect normally moves; can carry out failure prediction and warning according to the transmission shaft moment variations; and arrestment operation automatically; protected equipment, made equipment security of operation and reliable.
Description of drawings
Fig. 1 is the structural principle schematic diagram that in the present invention, mechanical scarfing cinder grid maker is crossed the moment early warning protector.
Wherein: 1, torque sensor, 2, data processing unit, 3, wireless launcher, 4, radio receiver, 5, the PLC Programmable Logic Controller, 6, mechanical scarfing cinder grid maker.
Embodiment
As shown in Figure 1; mechanical scarfing cinder grid maker of the present invention is crossed the moment early warning protector; comprise torque sensor 1, data processing unit 2, wireless launcher 3, radio receiver 4 and PLC Programmable Logic Controller 5; torque sensor 1, data acquisition unit 2 and wireless launcher 3 are arranged on the final drive shaft position of mechanical scarfing cinder grid maker, can rotate together with final drive shaft.Torque sensor 1 is connected with data processing unit 2, and data processing unit 2 is connected with wireless launcher 3.Radio receiver 4 is connected with PLC Programmable Logic Controller 5, and radio receiver 4 is connected with wireless mode with wireless launcher 3.Each parts are existing common technology.Torque sensor 1, data processing unit 2 and wireless launcher 3 are arranged on the transmission shaft of mechanical scarfing cinder grid maker 6, and are positioned at the position that does not affect the transmission shaft rotation.
The process that said apparatus is crossed the moment early warning to mechanical scarfing cinder grid maker is as described below:
The start-up circuit of mechanical scarfing cinder grid maker 6 is connected with PLC Programmable Logic Controller 5, the suffered moment numerical value of transmission shaft when setting mechanical scarfing cinder grid maker 6 normal operating condition in the program of PLC Programmable Logic Controller 5, the limit setting that this moment numerical value can bear to be no more than mechanical scarfing cinder grid maker 6 can be set according to experiment or experience.
Before 6 operations of machinery scarfing cinder grid maker, open power supply (can adopt heavy-duty battery, as the lithium battery) switch of data processing unit 2 and wireless launcher 3, then start mechanical scarfing cinder grid maker 6.Suffered torque signals when torque sensor 1 detects the transmission shaft operation in real time, and send this signal to data processing unit 2.Data processing unit 2 amplifies processing with the feeble signal that torque sensor 1 detects, and is then constantly sent by wireless launcher 3.Receive by radio receiver 4 signal that wireless launcher 3 sends, and carry out data and process, radio receiver 4 transfers data to this PLC Programmable Logic Controller 5.After PLC Programmable Logic Controller 5 receives data; with data in real time with mechanical scarfing cinder grid maker 6 normal operating conditions under the transmission shaft Moment set relatively; when the transmission shaft Moment that detects reaches or surpasses the transmission shaft Moment of setting under mechanical scarfing cinder grid maker normal operating condition; it is automatically out of service that PLC Programmable Logic Controller 5 is controlled mechanical scarfing cinder grid maker; and send immediately alerting signal; the prompting staff checks the scene; process, thereby reach the purpose of the mechanical scarfing cinder grid maker of effective protection.
Claims (1)
1. a mechanical scarfing cinder grid maker is crossed moment early warning guard method, it is characterized in that:
Mounting torque sensor, data processing unit and wireless launcher on the transmission shaft of mechanical scarfing cinder grid maker make torque sensor be connected with data processing unit, and data processing unit is connected with wireless launcher; Torque sensor detects transmission shaft suffered moment data of when operation in real time, after processing by data processing unit, is constantly sent by wireless launcher; Receive by radio receiver the signal that wireless launcher sends, and carry out data and process, radio receiver is connected with a PLC Programmable Logic Controller, and transfers data to this PLC Programmable Logic Controller, and the start-up circuit of mechanical scarfing cinder grid maker also is connected with this PLC Programmable Logic Controller; After the PLC Programmable Logic Controller receives data; with data in real time with mechanical scarfing cinder grid maker normal operating condition under the transmission shaft Moment analysis set relatively; when the transmission shaft Moment that detects reaches or surpass the transmission shaft Moment of setting under mechanical scarfing cinder grid maker normal operating condition; PLC Controlled by Programmable Controller machinery scarfing cinder grid maker is automatically out of service; and send immediately alerting signal; the prompting staff checks the scene; process, thereby reach the purpose of the mechanical scarfing cinder grid maker of effective protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210136108 CN102659193B (en) | 2012-05-04 | 2012-05-04 | Over-moment early warning protective method for mechanical slag removal grid machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210136108 CN102659193B (en) | 2012-05-04 | 2012-05-04 | Over-moment early warning protective method for mechanical slag removal grid machine |
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| Publication Number | Publication Date |
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| CN102659193A CN102659193A (en) | 2012-09-12 |
| CN102659193B true CN102659193B (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210136108 Expired - Fee Related CN102659193B (en) | 2012-05-04 | 2012-05-04 | Over-moment early warning protective method for mechanical slag removal grid machine |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106094716A (en) * | 2016-08-26 | 2016-11-09 | 江苏杜氏环保科技有限公司 | It is applied to control system and the method for work thereof of multiple grid |
| CN106836163A (en) * | 2017-04-15 | 2017-06-13 | 冯明月 | Single rake early warning type rotary teeth rake trash |
| CN108331299B (en) * | 2018-03-21 | 2020-04-21 | 太原市第一建筑工程集团有限公司 | Building wastewater and building garbage recycling device and using method thereof |
| CN111830896A (en) * | 2020-07-17 | 2020-10-27 | 太原理工大学 | Method for improving electric running state of pipe belt conveyor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS551806A (en) * | 1978-05-25 | 1980-01-09 | Hitachi Metals Ltd | Sludge scraper |
| CN100350230C (en) * | 2004-01-12 | 2007-11-21 | 陈长林 | Automatic control system for torque of concentration machine |
| CN100391572C (en) * | 2006-10-16 | 2008-06-04 | 太原理工大学 | Alarm device for servo pressure-preventing rake in thickener |
| CN101369135B (en) * | 2007-08-14 | 2010-11-10 | 上海大地自动化系统工程有限公司 | Sewage treatment intelligent management system |
| CN202516393U (en) * | 2012-05-04 | 2012-11-07 | 山东环科环境工程有限公司 | Over-torque early warning protection device for mechanical slag removal grating machine |
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Inventor after: Li Gang Inventor after: Hao Chunhong Inventor after: Su Qiang Inventor after: Shen Jun Inventor before: Bian Xingyu Inventor before: Hao Chunhong Inventor before: Su Qiang Inventor before: Shen Jun |
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Free format text: CORRECT: INVENTOR; FROM: BIAN XINGYU HAO CHUNHONG SU QIANG SHEN JUN TO: LI GANG HAO CHUNHONG SU QIANG SHEN JUN |
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Granted publication date: 20130515 Termination date: 20140504 |