CN103043340A - Wharf steel silo loading flow monitoring system and method - Google Patents
Wharf steel silo loading flow monitoring system and method Download PDFInfo
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- CN103043340A CN103043340A CN2012105205530A CN201210520553A CN103043340A CN 103043340 A CN103043340 A CN 103043340A CN 2012105205530 A CN2012105205530 A CN 2012105205530A CN 201210520553 A CN201210520553 A CN 201210520553A CN 103043340 A CN103043340 A CN 103043340A
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Abstract
The invention discloses a wharf steel silo loading flow monitoring system which comprises a weighing instrument, a programmable logic controller (PLC) control cabinet and a pneumatic switch valve. The weighting instrument is connected with the PLC control cabinet and used for monitoring the weight of mineral powder stored in a steel silo, converting weighing signals to current signals and transmitting the current signals to the PLC control cabinet. The PLC control cabinet is connected with the pneumatic switch valve and used for controlling the pneumatic switch valve to be closed to stop loading. Simultaneously, the invention further discloses a wharf steel silo loading flow monitoring method. By adopting the wharf steel silo loading flow monitoring system and method, the problem of easiness in material blocking during wharf steel silo loading is solved, a large quantity of manpower and material resources are saved, income of two millions of RMB is increased per year, and environment pollution caused by mineral powder flying during material cleaning is reduced.
Description
Technical field
The present invention relates to a kind of system and method thereof of flow monitoring, in particular, relate to a kind of harbour steel storehouse material loading flow monitoring system and monitoring method thereof.
Background technology
What adopt during slag micropowder factory steel storehouse material loading is the skewed slot mode of movement, and skewed slot putty phenomenon often occurs during material loading, on average per month can putty three times.Several tons of breeze putties not only will be wasted a large amount of manpower and materials and go cleaning, do to get flying dust all over the sky, pollute surrounding environment, also can delay production.Putty once needs to clear up could be dredged in more than 4 hour, so just delayed delivery 4 hours, and then made warehouse for finished product completely cause production to be forced to stop 4 hours, caused very large loss.The the underlying cause of putty is to monitor the breeze flow that puts in storage, if can in time find when the flow that puts in storage reduces then putty can not occur.
Summary of the invention
Technical matters to be solved by this invention is to overcome the shortcoming of prior art, the harbour steel storehouse material loading flow monitoring system that provide a kind of automatic alarm, suppresses the putty phenomenon, reduces the loss.
Simultaneously, the present invention also provides a kind of harbour steel storehouse material loading flow monitoring method.
In order to solve above technical matters, the invention provides a kind of harbour steel storehouse material loading flow monitoring system, comprise weighing instrument, PLC control housing and pneumatic on-off valve, described weighing instrument is connected with described PLC control housing, the breeze weighing-up wave that store in monitoring steel storehouse, and weighing-up wave is converted into current signal is sent to the PLC control housing; Described PLC control housing is connected with described pneumatic on-off valve, and the control pneumatic on-off valve is closed, and stops material loading.
The technical scheme that the present invention further limits is, described PLC control housing comprises pulse detector, weight comparator and picture annunciator, described pulse detector receives the current signal detection steel storehouse instantaneous weight that weighing instrument transmits, and weight transmitting is arrived described weight comparator; Described weight comparator calculates the interior steel storehouse feeding of an impulse singla and these data is compared with normal discharge, and adds up the interior steel storehouse feeding of 9 impulse singlas less than the number of times of normal discharge; If the number of times of adding up in the described weight comparator is 2 ~ 4 times, described weight comparator sends alerting signal to described picture annunciator, and described picture annunciator sends warning; If described weight ratio is thought highly of the number of times of statistics more than or equal to 5 times, described weight comparator sends closing signal to pneumatic on-off valve.
Further, described current signal is 4 ~ 20 milliamperes current signal.
Further, the width of a described impulse singla is 10 seconds.
Another technical scheme provided by the invention is: a kind of harbour steel storehouse material loading flow monitoring method, carry out as follows:
(1) the breeze weighing-up wave stored of weighing instrument monitoring steel storehouse, and weighing-up wave is converted into current signal is sent to pulse detector;
(2) pulse detector received current signal detection steel storehouse instantaneous weight, and with weight transmitting to described weight calculator;
(3) the weight comparator calculates the interior steel storehouse feeding of an impulse singla and these data is compared with normal discharge, and adds up the interior steel storehouse feeding of 9 impulse singlas less than the number of times of normal discharge;
(4) if the number of times of statistics is 2 ~ 4 times in the step (3), the weight comparator sends alerting signal to the picture annunciator, and the picture annunciator sends warning;
(5) if the number of times of statistics is more than or equal to 5 times in the step (3), the weight comparator sends the closing signal pneumatic on-off valve, and pneumatic on-off valve is closed, and stops material loading.
The technical scheme that the present invention further limits is that the current signal described in step (1) and the step (2) is 4 ~ 20 milliamperes current signal.
Further, the width of an impulse singla described in the step (3) is 10 seconds.
Further, the method of steel storehouse feeding is in impulse singla of calculating described in the step (3): steel storehouse breeze storage total amount before and after weight comparator recording pulse signal triggers, two groups of total amounts are subtracted each other, obtain entering in the impulse singla breeze amount in steel storehouse.
Further, the execution time of described method point is: storehouse effluent amount valve opening is greater than 30 and when continuing three minutes, and this moment, the influx of breeze was more stable.
The invention has the beneficial effects as follows: a kind of harbour steel storehouse material loading flow monitoring system of the present invention and monitoring method thereof, the easy problem that putty occurs when having solved harbour steel storehouse material loading, a large amount of manpower and materials have been saved, quite and increase income more than 200 ten thousand yuan every year, breeze flies upward the pollution to environment and when having reduced clear material.
Description of drawings
Fig. 1 is the structural representation of a kind of harbour steel of the present invention storehouse material loading flow monitoring system;
Fig. 2 is the diagram of circuit of a kind of harbour steel of the present invention storehouse material loading flow monitoring method.
The specific embodiment
Embodiment 1
A kind of harbour steel storehouse material loading flow monitoring system that present embodiment provides, its structural representation comprises weighing instrument, PLC control housing and pneumatic on-off valve as shown in Figure 1.
Weighing instrument is connected with the PLC control housing, the breeze weighing-up wave that store in monitoring steel storehouse, and weighing-up wave is converted into 4 ~ 20 milliamperes current signal is sent to the PLC control housing.
The PLC control housing is connected with pneumatic on-off valve, and the control pneumatic on-off valve is closed, and stops material loading.
The PLC control housing comprises pulse detector, weight comparator and picture annunciator, and pulse detector receives 4 ~ 20 milliamperes the current signal detection steel storehouse instantaneous weight that weighing instrument transmits, and weight transmitting is arrived described weight comparator; The weight comparator calculates in one group of 10 pps pulse per second signal the feeding of steel storehouse and these data is compared with normal discharge, and adds up in 9 impulse singlas the feeding of steel storehouse less than the number of times of normal discharge; If the number of times of adding up in the described weight comparator is 2 ~ 4 times, the weight comparator sends alerting signal to the picture annunciator, and the picture annunciator sends warning; If weight ratio is thought highly of the number of times of statistics more than or equal to 5 times, the weight comparator sends closing signal to pneumatic on-off valve.
The method of work diagram of circuit of a kind of harbour steel of the present invention storehouse material loading flow monitoring system carries out as shown in Figure 2 as follows:
(1) the breeze weighing-up wave stored of weighing instrument monitoring steel storehouse, and weighing-up wave is converted into 4 ~ 20 milliamperes current signal is sent to pulse detector;
(2) pulse detector receives 4 ~ 20 milliamperes current signal detection steel storehouse instantaneous weight, and weight transmitting is arrived described weight calculator;
(3) to calculate a width be steel storehouse feeding and these data are compared with normal discharge in 10 seconds the impulse singla to the weight comparator, and add up in 9 impulse singlas the feeding of steel storehouse less than the number of times of normal discharge.
The method of steel storehouse feeding is in impulse singla of described calculating: steel storehouse breeze storage total amount before and after weight comparator recording pulse signal triggers, two groups of total amounts are subtracted each other, and obtain entering in the impulse singla breeze amount in steel storehouse
(4) if the number of times of statistics is 2 ~ 4 times in the step (3), the weight comparator sends alerting signal to the picture annunciator, and the picture annunciator sends warning;
(5) if the number of times of statistics is more than or equal to 5 times in the step (3), the weight comparator sends the closing signal pneumatic on-off valve, and pneumatic on-off valve is closed, and stops material loading.
In addition, when storehouse effluent amount valve opening greater than 30 and when continuing three minutes, just trigger harbour steel storehouse material loading flow monitoring system, the influx of breeze is more stable at this moment.
A kind of harbour steel storehouse material loading flow monitoring system of the present invention and monitoring method thereof, the easy problem that putty occurs when having solved harbour steel storehouse material loading, saved a large amount of manpower and materials, quite and increase income more than 200 ten thousand yuan every year, and breeze flies upward pollution to environment when having reduced clear material.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (9)
1. harbour steel storehouse material loading flow monitoring system, it is characterized in that, comprise weighing instrument, PLC control housing and pneumatic on-off valve, described weighing instrument is connected with described PLC control housing, the breeze weight that store in monitoring steel storehouse, and weighing-up wave is converted into current signal is sent to the PLC control housing; Described PLC control housing is connected with described pneumatic on-off valve, and the control pneumatic on-off valve is closed, and stops material loading.
2. a kind of harbour steel according to claim 1 storehouse material loading flow monitoring system, it is characterized in that, described PLC control housing comprises pulse detector, weight comparator and picture annunciator, described pulse detector receives the current signal detection steel storehouse instantaneous weight that weighing instrument transmits, and weight transmitting is arrived described weight comparator; Described weight comparator calculates the interior steel storehouse feeding of an impulse singla and these data is compared with normal discharge, and adds up the interior steel storehouse feeding of 9 impulse singlas less than the number of times of normal discharge; If the number of times of adding up in the described weight comparator is 2 ~ 4 times, described weight comparator sends alerting signal to described picture annunciator, and described picture annunciator sends warning; If described weight ratio is thought highly of the number of times of statistics more than or equal to 5 times, described weight comparator sends closing signal to pneumatic on-off valve.
3. a kind of harbour steel according to claim 1 and 2 storehouse material loading flow monitoring system is characterized in that described current signal is 4 ~ 20 milliamperes current signal.
4. a kind of harbour steel according to claim 2 storehouse material loading flow monitoring system is characterized in that the width of a described impulse singla is 10 seconds.
5. a harbour steel storehouse material loading flow monitoring method is characterized in that, carries out as follows:
(1) the weighing instrument monitoring steel storehouse breeze weight of storing, and weighing-up wave is converted into current signal is sent to pulse detector;
(2) pulse detector received current signal detection steel storehouse instantaneous weight, and with weight transmitting to described weight calculator;
(3) the weight comparator calculates the interior steel storehouse feeding of an impulse singla and these data is compared with normal discharge, and adds up the interior steel storehouse feeding of 9 impulse singlas less than the number of times of normal discharge;
(4) if the number of times of statistics is 2 ~ 4 times in the step (3), the weight comparator sends alerting signal to the picture annunciator, and the picture annunciator sends warning;
(5) if the number of times of statistics is more than or equal to 5 times in the step (3), the weight comparator sends closing signal to pneumatic on-off valve, and pneumatic on-off valve is closed, and stops material loading.
6. a kind of harbour steel according to claim 5 storehouse material loading flow monitoring method is characterized in that the current signal described in step (1) and the step (2) is 4 ~ 20 milliamperes current signal.
7. a kind of harbour steel according to claim 5 storehouse material loading flow monitoring method is characterized in that the width of an impulse singla described in the step (3) is 10 seconds.
8. a kind of harbour steel according to claim 5 storehouse material loading flow monitoring method, it is characterized in that, the method of steel storehouse feeding is in impulse singla of calculating described in the step (3): steel storehouse breeze storage total amount before and after weight comparator recording pulse signal triggers, two groups of total amounts are subtracted each other, obtain entering in the impulse singla breeze amount in steel storehouse.
9. a kind of harbour steel according to claim 5 storehouse material loading flow monitoring method is characterized in that, the execution time point of described method is: storehouse effluent amount valve opening is greater than 30 and when continuing three minutes.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103245392A (en) * | 2013-05-17 | 2013-08-14 | 成都高威节能科技有限公司 | Cabin and tube plugging detection method of airtight submerged arc furnace |
| CN113589865A (en) * | 2021-07-12 | 2021-11-02 | 浙江中烟工业有限责任公司 | Tobacco charging barrel temperature control method based on pulse width modulation |
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| US20060283787A1 (en) * | 2005-06-20 | 2006-12-21 | Pedee Vincent J C | Integrated Advanced Simultaneous Oxidation Process (ASOP) to Defeat Chemical, Biological, and Radiological Agents in Aqueous and/or other Fluid Solutions |
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| CN113589865A (en) * | 2021-07-12 | 2021-11-02 | 浙江中烟工业有限责任公司 | Tobacco charging barrel temperature control method based on pulse width modulation |
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Effective date of registration: 20190704 Address after: 215600 Yonglian Village, Nanfeng Town, Zhangjiagang City, Jiangsu Province Patentee after: Lian Feng Steel (Zhangjiagang) Co., Ltd. Address before: 215628 Yonglian Jiangsu Yonggang Group, Nanfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: Jiangsu Yonggang Group Co., Ltd. |