CN104503353A - Method for reducing failure number of coal ash weight-loss weigher - Google Patents
Method for reducing failure number of coal ash weight-loss weigher Download PDFInfo
- Publication number
- CN104503353A CN104503353A CN201410705952.3A CN201410705952A CN104503353A CN 104503353 A CN104503353 A CN 104503353A CN 201410705952 A CN201410705952 A CN 201410705952A CN 104503353 A CN104503353 A CN 104503353A
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- China
- Prior art keywords
- logic controller
- control
- program
- weightlessness balance
- stoppages
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000010883 coal ash Substances 0.000 title abstract 2
- 208000016261 weight loss Diseases 0.000 title abstract 2
- 230000004580 weight loss Effects 0.000 title abstract 2
- 230000008569 process Effects 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000010881 fly ash Substances 0.000 claims description 14
- 230000003993 interaction Effects 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000007257 malfunction Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000004568 cement Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 101100136092 Drosophila melanogaster peng gene Proteins 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4184—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by fault tolerance, reliability of production system
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Programmable Controllers (AREA)
Abstract
The invention discloses a method for reducing the failure number of a coal ash weight-loss weigher, and the method comprises the steps: employing a new logic controller and a peripheral device, wherein the mean free error time of the logic controller is more than ten years; employing the logic controller capable of achieving on-line query, compiling a control program, and achieving the on-line controlling of a program control process through the logic controller; adding a function of fault display in the program, and carrying out fault processing timely according to the fault information. The method can iron out the defects in the prior art that the number of functions is low, the structure is not reasonable and the service life of equipment is short, so as to achieve the advantages that the number of functions is large, the structure is reasonable, and the service life of the equipment is long.
Description
Technical field
The present invention relates to cement processing technique field, particularly, relate to a kind of method reducing the flyash Weightlessness balance number of stoppages.
Background technology
The fault frequency is higher in recent years for my subsidiary factory of company one cement grinding mill flyash Weightlessness balance, investigation find that the controller of mainly cement grinding mill flyash Weightlessness balance breaks down, cause Weightlessness balance out of hand and cause operator for ensure manufacture of cement quality and stop manufacture of cement.1 to June in 2013, the Weightlessness balance fault frequency was 6 times/month.
In order to better analysis of failure, find the main cause causing Weightlessness balance fault, we add up having caused several reasons of Weightlessness balance fault to carry out and depict fault Pareto diagram according to statistical form.
Weightlessness balance fault statistics table:
| Sequence number | Project | Frequency (secondary) | Cumulative frequencies (secondary) | Cumulative percentage (%) |
| 1 | Controller failure | 27 | 27 | 75.0％ |
| 2 | Baiting valve putty | 3 | 30 | 83.3％ |
| 3 | Solenoid valve failure | 2 | 32 | 88.9％ |
| 4 | Frequency converter transships | 2 | 34 | 94.4％ |
| 5 | Other | 2 | 36 | 100％ |
The controller failure frequency 27 times, accounts for institute out of order 75%, therefore can determine to cause the high main cause of the cement grinding mill flyash Weightlessness balance fault frequency be: controller failure.
The visible principal element of controller failure that causes is: component aging, program can not be looked into and show with non-fault.
Realizing in process of the present invention, inventor finding at least to exist in prior art that function is few, unreasonable structure and the defect such as service life of equipment is short.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of method reducing the flyash Weightlessness balance number of stoppages, the advantage that many with practical function, rational in infrastructure and service life of equipment is grown.
For achieving the above object, the technical solution used in the present invention is: a kind of method reducing the flyash Weightlessness balance number of stoppages, comprising:
A, adopt new logic controller and peripheral components, this logic controller mean free error time is more than 10 years;
B, adopting can the logic controller of online query, and works out control program, can control programmed control process online by this logic controller;
C, in a program increase malfunction coefficient function, according to the timely handling failure of failure message.
Further, described step a, specifically comprises:
Suitable components and parts are selected according to control overflow;
According to control principle design electric control circuit;
The Installation and Debugging of controller are carried out according to electric control circuit.
Further, described step b, specifically comprises:
PLC program design is carried out according to steering logic;
With notebook computer online query programmed control process.
Further, described step c, specifically comprises:
The friendly easy-to-use human-computer interaction interface of configuration;
Need the good TD400C text display of configuration according to control, be used for showing conventional parameter, controling parameters and display failure message are set, are convenient to, according to failure message handling failure fast, raise the efficiency.
The method of the reduction flyash Weightlessness balance number of stoppages of various embodiments of the present invention, owing to comprising: adopt new logic controller and peripheral components, this logic controller mean free error time is more than 10 years; Employing can the logic controller of online query, and works out control program, can control programmed control process online by this logic controller; Increase malfunction coefficient function in a program, according to the timely handling failure of failure message; Thus can overcome that function in prior art is few, unreasonable structure and the short defect of service life of equipment, many with practical function, rational in infrastructure and advantage that service life of equipment is long.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from instructions, or understand by implementing the present invention.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is weightless title process flow diagram in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
According to the embodiment of the present invention, as shown in Figure 1, a kind of method reducing the flyash Weightlessness balance number of stoppages is provided.
Technical scheme of the present invention, reduces subsidiary factory's flyash Weightlessness balance fault frequency.The manufacture of cement metering outfit fault frequency is lower than 3 times/month.
gameeing of technical solution of the present invention:
Tabulation: Peng Sansu date: 2013.7.19
the countermeasure of technical solution of the present invention is implemented:
Implement one: select suitable smd controller according to control overflow.
1. primary controller we select the CPU224XP programmable logic controller (PLC) of the series of Siemens, this controller cost performance is high, is widely used, stable performance, and the controller mean free error time is more than 15 years; Can be connected with computing machine by PPI communication cable, can check online and editor control program, meet the control overflow of Weightlessness balance completely.
2. analog input and output we select EM231 and the EM232 expansion module of S7-200, EM231 has 4 tunnel input channels, is used for the heavy signal in storehouse, reception 2 tunnel and setting flow; EM232 has 2 tunnel output channels, is used for controlling the frequency of frequency converter to control blanking velocity, and the road output channel that CPU224XP carries is used for the instantaneous delivery calculated to be sent to Central Control Room.
3. what LOAD CELLS sent is millivolt signal, the resolution of EM231 only has 2.5 millivolts, precision is nonconforming, for this reason, we select the millivolt signal amplifier of two Beijing PASSION companies that the 0-50 millivolt signal of LOAD CELLS is enlarged into 4-20 milliampere standard signal again input control device carry out calculating and control.
4. we select direct current 24 volts of power supplys of bright latitude to PLC, transmitter, relay, blanking solenoid valve, and the relay of IDEC is used for isolating the input and output of digital quantity.
5. human-computer interaction interface we select the TD-400C text display of Siemens, this display can show 4 × 12 Chinese characters, can customize button with 15, meets usual data display and optimum configurations use completely.
Implement two: according to control principle design electric control circuit.
According to the requirement controlled, we organizational technology personnel discuss the optimum circuit arrangement of research, have devised electric control circuit.
Implement three: assembling and the Installation and Debugging of carrying out controller according to electric control circuit figure.
After designing circuit diagram, we look for skilled personnel to spend the time half a day controller to be assembled and has carried out off-line simulation debugging.
After off-line has been debugged, we utilize the chance of stopping grinding maintenance, original controller is dismantled, loads onto the new controller assembled, and carried out on-line debugging, make controller meet control overflow.
Implement four: carry out PLC program design according to steering logic.
The simplification control flow of Weightlessness balance is: open baiting valve from large storehouse, expect that valve → control reamer discharging → little storehouse material sky according to Weightlessness balance principle to open again baiting valve blanking, periodic duty like this is completely closed in little storehouse of weighing → little storehouse.
The principle of Weightlessness balance is as whole scale body using scale hooper and feeder, ceaselessly scale body is carried out to the sampling of weight signal by instrument or host computer, calculate the changing ratio of weight in the unit interval as instantaneous delivery, again by the filtering technique process of various software and hardware, drawing can as " actual flow " of control object.
Principle accordingly, we have worked out control program by the flow process controlled and have downloaded on controller and have carried out actual debugging.
Implement five: by notebook computer polling routine control procedure.
The PLC that we select has 2 communication ports, and one is used for showing parameters, and another is used for the program of checking, at ordinary times without notebook computer, change program, just use computer when looking into fault, again saves the money of a special purpose computer like this.
Implement six: the friendly easy-to-use human-computer interaction interface of configuration.
Need the good TD400C text display of configuration according to control, be used for showing conventional parameter, controling parameters and display failure message are set, are convenient to, according to failure message handling failure fast, raise the efficiency.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. reduce a method for the flyash Weightlessness balance number of stoppages, it is characterized in that, comprising:
A, adopt new logic controller and peripheral components, this logic controller mean free error time is more than 10 years;
B, adopting can the logic controller of online query, and works out control program, can control programmed control process online by this logic controller;
C, in a program increase malfunction coefficient function, according to the timely handling failure of failure message.
2. the method for the reduction flyash Weightlessness balance number of stoppages according to claim 1, it is characterized in that, described step a, specifically comprises:
Suitable components and parts are selected according to control overflow;
According to control principle design electric control circuit;
The Installation and Debugging of controller are carried out according to electric control circuit.
3. the method for the reduction flyash Weightlessness balance number of stoppages according to claim 1 and 2, it is characterized in that, described step b, specifically comprises:
PLC program design is carried out according to steering logic;
With notebook computer online query programmed control process.
4. the method for the reduction flyash Weightlessness balance number of stoppages according to claim 1 and 2, it is characterized in that, described step c, specifically comprises:
The friendly easy-to-use human-computer interaction interface of configuration;
Need the good TD400C text display of configuration according to control, be used for showing conventional parameter, controling parameters and display failure message are set, are convenient to, according to failure message handling failure fast, raise the efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705952.3A CN104503353A (en) | 2014-11-26 | 2014-11-26 | Method for reducing failure number of coal ash weight-loss weigher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705952.3A CN104503353A (en) | 2014-11-26 | 2014-11-26 | Method for reducing failure number of coal ash weight-loss weigher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104503353A true CN104503353A (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410705952.3A Pending CN104503353A (en) | 2014-11-26 | 2014-11-26 | Method for reducing failure number of coal ash weight-loss weigher |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973442A (en) * | 2016-05-10 | 2016-09-28 | 韦海报 | Control system of weightless scales |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100631A (en) * | 2007-06-28 | 2008-01-09 | 武汉科恒工控工程有限责任公司 | Washing powder automatic producing device based on weightless scale control system |
| CN201477408U (en) * | 2009-08-31 | 2010-05-19 | 兰州交通大学 | Human-simulated logic controller and control device used for dynamic batching system |
| WO2010106546A1 (en) * | 2009-03-20 | 2010-09-23 | Pidilite Industries Ltd | A device for continuous preparation of hot mass and a process therefor |
| CN103123276A (en) * | 2013-02-25 | 2013-05-29 | 安徽永成电子机械技术有限公司 | Electric weightless scale |
-
2014
- 2014-11-26 CN CN201410705952.3A patent/CN104503353A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100631A (en) * | 2007-06-28 | 2008-01-09 | 武汉科恒工控工程有限责任公司 | Washing powder automatic producing device based on weightless scale control system |
| WO2010106546A1 (en) * | 2009-03-20 | 2010-09-23 | Pidilite Industries Ltd | A device for continuous preparation of hot mass and a process therefor |
| CN201477408U (en) * | 2009-08-31 | 2010-05-19 | 兰州交通大学 | Human-simulated logic controller and control device used for dynamic batching system |
| CN103123276A (en) * | 2013-02-25 | 2013-05-29 | 安徽永成电子机械技术有限公司 | Electric weightless scale |
Non-Patent Citations (2)
| Title |
|---|
| 刘骏: "连续式稳定土厂拌设备配料称量系统研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 谷野: "自动称重机开发与研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973442A (en) * | 2016-05-10 | 2016-09-28 | 韦海报 | Control system of weightless scales |
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Application publication date: 20150408 |