CN102021266B - Automatic acquisition system and method for weight of molten iron added into converter - Google Patents
Automatic acquisition system and method for weight of molten iron added into converter Download PDFInfo
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- CN102021266B CN102021266B CN200910187655A CN200910187655A CN102021266B CN 102021266 B CN102021266 B CN 102021266B CN 200910187655 A CN200910187655 A CN 200910187655A CN 200910187655 A CN200910187655 A CN 200910187655A CN 102021266 B CN102021266 B CN 102021266B
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Abstract
The invention relates to an automatic acquisition system and an automatic acquisition method for weight of molten iron added into a converter. The method comprises the steps of: acquiring the corresponding molten iron heavy ladle weight and light ladle weight according to a crane counterpoint limit signal and a crane weighting signal of a converter programmable logic controller (PLC), judging the rationality of crane weight, and sending information to a secondary computer at the same time; and matching inputted molten iron ladle number with molten iron light ladle and heavy ladle weight information and calculating the weight of the molten iron added into the converter by using the secondary computer so as to automatically acquire the weight of the molten iron, eliminate the personal error of the weight of the added molten iron and ensure the reality and reliability of data. The automatic control level of the whole system is improved, the calculation and control accuracy of an automatic steel-making system is ensured, improvement on the accuracy of molten iron data is facilitated, and the quality of the smelted molten iron is ensured.
Description
Technical field
The invention belongs to steel-making automatic control technology field, relate in particular to a kind of converter and be blended into weight of molten iron automatic acquisition device and acquisition method thereof based on top-blown oxygen converter computer programmable sequence controller (hereinafter to be referred as converter PLC) and two-level computer system.
Background technology
At present, converter is blended into weight of molten iron and generally adopts manual calculation and manual record mode.At first; Write down by convert the heavy jar weight that iron man person will be installed on the weighing image display on the crane before converting iron operation; After converting the disengaging of little hook of iron EO and crane and iron ladle; Slack tank weight record on the image display of weighing that is installed on the crane is got off, go out the actual weight of molten iron that is blended in the converter by converting the heavy jar of iron man person with slack tank weight manual calculation again through record.Then, convert iron man person again through intercommunication or the gesture converter record worker that the weight of molten iron notifying operation of manual calculation is indoor, the weight of molten iron that will hear by the record be recorded in that the melting record is gone up or typing robotization steel-making computingmachine in.The main drawback that this method exists is:
1, generally, crane is weighed, and to convert iron man person's distance far away for image display distance, not good or refer to hang worker's eyesight and be easy to generate reading error when relatively poor when light:
When 2, calculating heavy jar with slack tank weight difference, there are errors in computation if convert iron man person, very easily produces miscalculation;
3, refer to hang the worker and accomplish through language or gesture, have the information transmission error with record worker's information transmission;
4, the record is entered into data and has the typing error in the robotization steelmaking system.
Owing to there is an above-mentioned error, therefore the safety of the data that provide is not high, and it is very inaccurate to be blended into weight of molten iron yet, with the stability of the calculating that directly has influence on the robotization steelmaking system and the control accuracy and the water constituent of making steel.
Summary of the invention
The object of the invention is exactly to above-mentioned defective, and it is high to aim to provide a kind of sampling and computational accuracy, the error that can avoid the human factor influence to cause, and the converter of system's stable and reliable operation is blended into weight of molten iron automatic data acquisition and calculation system and method.
For this reason, the technical solution that the present invention taked is:
A kind of converter is blended into the weight of molten iron automated collection systems; Comprise converter PLC and second computer; In converter, be provided with the crane contraposition limit switch that is connected with converter PLC, the weighing-up wave wireless launcher is set on the crane, in converter PLC cabinet, set up crane weighing-up wave radio receiver simultaneously; The communication data piece that in converter PLC, increase crane state recognition program, is blended into the weight of molten iron automated evaluation procedure and is connected with second computer; In second computer, set up the Communication Gateway program, the molten iron information that read converter PLC related data and articulate the storage program, be blended into weight of molten iron automated evaluation procedure and the demonstration of terminal operation picture, realize that converter is blended into the automatic collection and the metering of weight of molten iron.
A kind of converter is blended into the method that weight of molten iron is gathered automatically; Be according to the crane contraposition limit signal of converter PLC and the crane weight of weighing; Judge the reasonableness of crane weight, when crane weight is reasonable, crane weight is write heavy jar of weight data position of molten iron of converter PLC communication data piece; When crane contraposition limit switch is in open mode; Carrying out the minimum value of crane weight calculates; If the real-time weight of crane is carried out Calculation on stability during greater than the crane weight minimum value calculated; Relatively stable in certain interval the time when the real-time weight of crane, crane weight is write the slack tank weight data position of converter PLC communication data piece; The PLC of converter simultaneously sends to second computer with the slack tank weight information for heavy jar with iron ladle; Second computer matees the iron ladle number of input and carries out the calculating that converter is blended into weight of molten iron with iron ladle slack tank, a heavy jar weight information.
The present invention is blended into automatic concrete acquisition step and the method for gathering of weight of molten iron:
1, heavy jar Weight acquisition:
After the crane that hangs heavy jar drove to the contraposition limit switch position that is located in the converter, converter PLC read the crane weighing-up wave that radio receiver receives in real time, and the sampling period of reading in real time is 100ms; And crane weight shown in real time crane being claimed writes heavy jar of weight data position of molten iron of converter PLC communication data piece.
2, slack tank Weight acquisition:
A, canister major punishment are disconnected:
After converter PLC receives crane contraposition limit signal, start converter PLC crane weight minimum value determining program;
Crane weight when crane weight minimum value determining program at first will be received crane contraposition limit signal is set at the minimum value variable; Carry out real-time judge according to the minimum value variable of setting then; When crane weight during, crane weight is replaced with minimum value less than the minimum value set; Otherwise, will not replace;
B, crane weight steady state are judged:
When the real-time weight of crane during, start converter PLC crane weight stabilize decision program greater than minimum value; If less than setting numerical value, crane weight stabilize decision program judges that crane weight is steady state to crane weight change amount within a certain period of time;
C, slack tank weight record:
After converter PLC judges that crane weight is stable, with shown in the crane weigh write the slack tank weight data position in the communication data piece, and send weighing to second computer and accomplish signal.
3, converter is blended into weight of molten iron calculating:
Converter PLC is blended into the weight of molten iron automated evaluation procedure and reads heavy jar of weight and slack tank weight data with the computer communication data block in real time, and writes the weight of molten iron Data Position; The heavy jar weight and the slack tank weight data that will receive simultaneously flow to second computer, are blended into weight of molten iron by second computer and calculate.
4, after iron operation completion is converted in converter; Second computer reads heavy jar of crane, slack tank and weight of molten iron information automatically through the Communication Gateway program from converter PLC, and with iron ladle number, heavy jar weight, slack tank weight and be blended into weight of molten iron and articulate and store.
Beneficial effect of the present invention is:
Because the present invention has cancelled the record worker operation that iron quantity is converted in typing in the robotization steelmaking system, has alleviated operator's workload; The automatic collection and the calculating of weight of molten iron have been realized simultaneously; Eliminated the generation of the miscalculation, information transmission error and the typing error that are blended into weight of molten iron, accelerated collection, calculating, record and storage speed, made data more true and reliable; Not only improved the automatic control level of total system; And can guarantee the calculating and the control accuracy of robotization steelmaking system, and help improving the accuracy of molten iron data, guarantee the quality of smelting molten steel.The present invention makes full use of scene existing automatic control formula system, need not increase more equipment and investment, the method simple possible, and system is safe and reliable to operation, helps bringing into play existing installation effect and potential.
Description of drawings
Fig. 1 is blended into weight of molten iron automated collection systems structured flowchart for converter.
Fig. 2 is blended into weight of molten iron automated collection systems workflow diagram for converter.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Visible by Fig. 1, the hardware that converter of the present invention is blended into the weight of molten iron automated collection systems mainly by converter contraposition limit switch, crane claim, weighing-up wave wireless launcher, weighing-up wave radio receiver, converter PLC and converter second computer form.Converter contraposition limit switch be installed on every block converter with crane over against the position, converter contraposition limit switch only is provided with out and closes two positions, when crane walked to converter and converts the iron position, converter contraposition limit switch was for opening state; Otherwise be off status.Simultaneously, converter contraposition limit switch is connected with converter PLC, makes converter contraposition limit switch get signal and can be transferred among the converter PLC.The weighing-up wave wireless launcher is installed on crane, in converter PLC cabinet, is provided with crane weighing-up wave radio receiver, with real-time transmission and reception crane weight.In converter PLC, also set up crane state recognition program, crane has been discerned with the slack tank state for heavy jar automatically; Increased and be blended into the weight of molten iron automated evaluation procedure, converter has been blended into weight of molten iron calculates automatically; Set up the communication data piece that is connected with second computer, gathered and heavy jar of judgement, slack tank and weight of molten iron information.PLC is corresponding with converter; In second computer, then set up the Communication Gateway program, the molten iron information that read converter PLC related data and articulate the storage program, be blended into weight of molten iron automated evaluation procedure and the demonstration of terminal operation picture, be blended into automatic collection, calculating and the stored record of weight of molten iron through the operation realization converter of system.
Converter of the present invention is blended into the method that weight of molten iron is gathered automatically; Mainly be to receive through converter PLC to gather crane contraposition limit signal and crane weighing-up wave; Write down the reasonableness that iron ladle weighs jar and judges crane weight according to setting program; When crane weight is reasonable, crane weight is write heavy jar of weight data position of molten iron of converter PLC communication data piece; When crane contraposition limit switch is in open mode; Carrying out the minimum value of crane weight calculates; If the real-time weight of crane is carried out Calculation on stability during greater than the crane weight minimum value set; Relatively stable in certain interval the time when the real-time weight of crane, crane weight is write the slack tank weight data position of converter PLC communication data piece; The PLC of converter simultaneously sends to second computer with the slack tank weight information for heavy jar with iron ladle; Second computer matees the iron ladle number of input and carries out the calculating that converter is blended into weight of molten iron with iron ladle slack tank, a heavy jar weight information.
It is as shown in Figure 2 that the present invention is blended into automatic concrete steps and the workflow of gathering of weight of molten iron.
After the crane entering of hanging heavy jar was located at the contraposition limit switch position in the converter, system brought into operation.Converter PLC claimed that to crane contraposition limit signal and crane that radio receiver receives weighing-up wave reads, and according to crane weight situation, handles respectively according to the sampling period of 100ms.The one, crane weight reaches set(ting)value and promptly satisfies heavy jar of weight condition of crane, crane weight is write heavy jar of weight data position of molten iron of converter PLC communication data piece, and sends weighing to second computer and accomplishes signal.
The 2nd, crane weight does not reach set(ting)value, does not satisfy prescribed condition, gets into the disconnected program of canister major punishment.
Crane weight minimum value determining program carries out real-time judge according to the minimum value variable of setting, and when crane weight during less than the minimum value set, crane weight is replaced with minimum value; Otherwise, will not replace;
When the real-time weight of crane during, start converter PLC crane weight stabilize decision program greater than minimum value; If crane weight change amount is less than after setting numerical value and stablizing certain hour, crane weight stabilize decision program judges that crane weight is steady state;
After converter PLC judges that crane weight is stable, crane weight is write the slack tank weight data position in the communication data piece, and send weighing to second computer and accomplish signal.
Converter PLC will be when will weighing jar weight and slack tank weight data and writing the weight of molten iron Data Position; Be blended into the data that the weight of molten iron automated evaluation procedure also will calculate in real time and flow to second computer; Second computer carries out the coupling of information according to the iron ladle number of input, heavy jar and slack tank data, and is blended into weight of molten iron and calculates.
Converter is converted after iron operation accomplishes, second computer through the Communication Gateway program automatically with iron ladle number, heavy jar weight, slack tank weight and be blended into weight of molten iron and articulate and store.Thereby accomplish a converter and be blended into the automatic gatherer process of weight of molten iron.
Claims (3)
1. a converter is blended into the weight of molten iron automated collection systems; Comprise converter PLC and second computer; It is characterized in that; Converter is provided with the crane contraposition limit switch that is connected with converter PLC, and the weighing-up wave wireless launcher is set on the crane, and in converter PLC cabinet, sets up crane weighing-up wave radio receiver; The communication data piece that in converter PLC, increase crane state recognition program, is blended into the weight of molten iron automated evaluation procedure and is connected with second computer; In second computer, set up the Communication Gateway program, the molten iron information that read converter PLC related data and articulate the storage program, be blended into weight of molten iron automated evaluation procedure and the demonstration of terminal operation picture, realize that converter is blended into the automatic collection and the metering of weight of molten iron.
2. an application rights requires 1 said converter to be blended into the method for weight of molten iron automated collection systems; It is characterized in that; According to the crane contraposition limit signal of converter PLC and the crane weight of weighing; Judge the reasonableness of crane weight, when crane weight is reasonable, crane weight is write heavy jar of weight data position of molten iron of converter PLC communication data piece; When crane contraposition limit switch is in open mode; Carrying out the minimum value of crane weight calculates; If the real-time weight of crane is carried out Calculation on stability during greater than the crane weight minimum value calculated; Relatively stable in certain interval the time when the real-time weight of crane, crane weight is write the slack tank weight data position of converter PLC communication data piece; The PLC of converter simultaneously sends to second computer with the slack tank weight information for heavy jar with iron ladle; Second computer matees the iron ladle number of input with iron ladle slack tank, a heavy jar weight information, and carries out converter and be blended into weight of molten iron and calculate.
3. application converter according to claim 2 is blended into the method for weight of molten iron automated collection systems, it is characterized in that, concrete acquisition step and method are:
(1), heavy jar Weight acquisition:
After the crane that hangs heavy jar drives to the contraposition limit switch position that is located in the converter; Converter PLC reads the crane weighing-up wave that radio receiver receives in real time, and crane weight shown in crane claimed writes heavy jar of weight data position of molten iron of converter PLC communication data piece;
(2), slack tank Weight acquisition:
A, canister major punishment are disconnected:
After converter PLC receives crane contraposition limit signal, start converter PLC crane weight minimum value determining program;
Crane weight when crane weight minimum value determining program at first will be received crane contraposition limit signal is set at the minimum value variable; Carry out real-time judge according to the minimum value variable of setting then; When crane weight during, crane weight is replaced with minimum value less than the minimum value set; Otherwise, will not replace;
B, crane weight steady state are judged:
When the real-time weight of crane during, start converter PLC crane weight stabilize decision program greater than minimum value; If less than setting numerical value, crane weight stabilize decision program judges that crane weight is steady state to crane weight change amount within a certain period of time;
C, slack tank weight record:
After converter PLC judges that crane weight is stable, with shown in the crane weigh write the slack tank weight data position in the communication data piece, and send weighing to second computer and accomplish signal;
(3), converter is blended into weight of molten iron calculating:
Converter PLC is blended into the weight of molten iron automated evaluation procedure and reads heavy jar of weight and slack tank weight data with the computer communication data block in real time, and writes the weight of molten iron Data Position; The heavy jar weight and the slack tank weight data that will receive simultaneously flow to second computer, are blended into weight of molten iron by second computer and calculate;
(4), after iron operation completion is converted in converter; Second computer reads heavy jar of crane, slack tank and weight of molten iron information automatically through the Communication Gateway program from converter PLC, and with iron ladle number, heavy jar weight, slack tank weight and be blended into weight of molten iron and articulate and store.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910187655A CN102021266B (en) | 2009-09-23 | 2009-09-23 | Automatic acquisition system and method for weight of molten iron added into converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910187655A CN102021266B (en) | 2009-09-23 | 2009-09-23 | Automatic acquisition system and method for weight of molten iron added into converter |
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| Publication Number | Publication Date |
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| CN102021266A CN102021266A (en) | 2011-04-20 |
| CN102021266B true CN102021266B (en) | 2012-09-26 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103352123B (en) * | 2013-07-25 | 2015-05-20 | 西安电炉研究所有限公司 | Hot charging production equipment of ore-smelting refining electric furnace and hot charging technology thereof |
| CN103792922B (en) * | 2014-02-11 | 2016-04-20 | 武钢集团昆明钢铁股份有限公司 | Pneumatic steelmaking ferroalloy feeds in raw material weighing data collection monitoring system |
| CN105087860B (en) * | 2014-05-14 | 2017-07-28 | 宝山钢铁股份有限公司 | The molten iron automatic weighing control method of twin furnace seat electric furnace production system |
| CN104099441A (en) * | 2014-07-31 | 2014-10-15 | 武钢集团昆明钢铁股份有限公司 | System and method for monitoring iron pouring start of converter |
| CN104109728B (en) * | 2014-07-31 | 2015-11-18 | 武钢集团昆明钢铁股份有限公司 | A kind ofly be applied to monitoring converter and convert the system and method that iron completes |
| CN104232836A (en) * | 2014-07-31 | 2014-12-24 | 武钢集团昆明钢铁股份有限公司 | System and method for monitoring starting of steel tapping from converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228001Y (en) * | 1995-03-13 | 1996-05-29 | 本溪钢铁公司 | Device for measuring molten iron on hot-metal car |
| CN2646102Y (en) * | 2003-10-22 | 2004-10-06 | 成都货安计量技术中心 | Electronic scale of loader |
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2009
- 2009-09-23 CN CN200910187655A patent/CN102021266B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228001Y (en) * | 1995-03-13 | 1996-05-29 | 本溪钢铁公司 | Device for measuring molten iron on hot-metal car |
| CN2646102Y (en) * | 2003-10-22 | 2004-10-06 | 成都货安计量技术中心 | Electronic scale of loader |
Non-Patent Citations (2)
| Title |
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| JP昭62-274016A 1987.11.28 |
| JP特开平11-125492A 1999.05.11 |
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