CN101082495B - Device for tracking sintering trolley position and method thereof - Google Patents
Device for tracking sintering trolley position and method thereof Download PDFInfo
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- CN101082495B CN101082495B CN2007102012060A CN200710201206A CN101082495B CN 101082495 B CN101082495 B CN 101082495B CN 2007102012060 A CN2007102012060 A CN 2007102012060A CN 200710201206 A CN200710201206 A CN 200710201206A CN 101082495 B CN101082495 B CN 101082495B
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Abstract
This invention relates to the steel agglomeration system, especially it relates to the tracking device and tracking method of the position of the agglomeration trolley. This invention contraposes this existing technical problem in that the calculation deviation of the position of the agglomeration trolley is large. It discloses a sort of position tracking set and method of the agglomeration trolley. The position tracking set of the agglomeration trolley in this invention consists ofthe position checking set and the programmable logic controller, position checking set is fixed beside the orbit of the agglomeration trolley, the position checking set connects with the programmable logic controller, the programmable logic controller calculates the position of the agglomeration trolley according to the signal of the position checking set and the parameter of the agglomeration trolley. This position tracking method of the agglomeration trolley in this invention calculates the number of the agglomeration trolley which the tracking agglomeration trolley enters the charging agglomeration orbital, then by that it rides the length of the agglomeration trolley it obtain the position of the tracking agglomeration trolley. The availability effect is that: it calculates the current position of the agglomeration trolley well and truly, it applies to the agglomeration expert system, the end-point temperature control system, and so on.
Description
Technical field
The present invention relates to the steel sintering system, particularly the Position Tracking device and the computing method of pallet.
Background technology
In the sintering system of steel industry, the pallet on the sintering machine generally has five or six ten, and every pallet length and width are fixing equal, and every pallet has two pairs of wheels.Join end to end between every pallet on the sintering machine, operate on the pallet track, the pallet track comprises two parts, material loading sintering track and return trajectory.Every pallet operation on the pallet track comprises two parts, carries out the material loading sintering from material loading sintering track, turns back to material loading sintering track through return trajectory again.Along with the development of steel industry, the sintering automatization level improves constantly, and the application of putting into production such as sintering expert system, terminal temperature control system in the computation model of these systems, need accurately be calculated the pallet position.At present, the pallet position is that the translational speed according to pallet calculates, because pallet approximately needs more than 30 minute from the head to the tail, in during this period of time range rate error, velocity perturbation etc., all can cause the deviation of pallet position calculation.
Summary of the invention
Technical matters to be solved by this invention is that the big problem of pallet position calculation deviation at prior art provides a kind of device for tracking sintering trolley position and method.
The technical scheme that the present invention solve the technical problem employing is, device for tracking sintering trolley position, comprise location detecting apparatus, programmable logic controller (PLC), it is characterized in that, location detecting apparatus is installed in by the pallet track, and the output terminal of location detecting apparatus links to each other with the input end of programmable logic controller (PLC), and programmable logic controller (PLC) is by the calculated signals pallet position of location detecting apparatus input.
Tracking sintering trolley position method of the present invention comprises the following steps:
A, at the other installation site of pallet track checkout equipment;
B, the pallet of calculate following the tracks of by location detecting apparatus enter the pallet platform number of material loading sintering track;
C, the position of calculating the pallet of following the tracks of: pallet platform number * pallet length.
Further, described step b comprises the following steps:
B1, when the pallet of following the tracks of enters material loading sintering track, the recording counter value is designated as record value;
B2, when the wheel of pallet and location detecting apparatus distance during less than setting value, counter adds 1;
B3, judge that the value of counter is whether greater than the maximal value of setting, if then enter step b4; Otherwise enter step b5;
B4, counter are changed to 0;
B5, whether judge Counter Value less than record value, if then enter step b6; Otherwise enter step b7;
B6, calculating pallet platform number: (maximal value+Counter Value of setting-record value) ÷ 2;
B7, calculating pallet platform number: (Counter Value-record value) ÷ 2.
The invention has the beneficial effects as follows, can accurately calculate the current location of pallet, can be widely used in sintering expert system, terminal temperature control system etc.
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
Description of drawings
Fig. 1 is the synoptic diagram A of the specific embodiment of the invention.
Fig. 2 is the process flow diagram of the specific embodiment of the invention.
Fig. 3 is the synoptic diagram B of the specific embodiment of the invention.
In the accompanying drawing: the 1-pallet; 2-first is near switch; 3-second is near switch.
Embodiment
Device for tracking sintering trolley position of the present invention, comprise location detecting apparatus and programmable logic controller (PLC) (PLC), location detecting apparatus is installed in by the pallet track, the output terminal of location detecting apparatus links to each other with the input end of PLC, and PLC is by the calculated signals pallet position of location detecting apparatus input.
Programmable logic controller (PLC) (Programmable Logic Controller, PLC): the electronic system that is a kind of digital operation operation, adopt programmable memory, be used for the storage actuating logic computing of portion within it, sequential control, regularly, the instruction of operations such as counting and arithmetical operation, and, control various types of machineries or production run by input and output numeral, simulation.
Position for more accurate tracking pallet, location detecting apparatus comprises two position transducers, primary importance sensor and second place sensor, primary importance sensor and the second place sensor distance at regular intervals are installed in by the pallet track, and two position transducers link to each other with the input end of PLC respectively.According to the different spacing distance of different set to the accuracy requirement of pallet position, be 1/8 o'clock of pallet length to the accuracy requirement of pallet position generally, the spacing distance of primary importance sensor and second place sensor is a pallet with half of two wheel spacing distances on limit.
Tracking sintering trolley position method of the present invention is utilized the fixing characteristics that equate of pallet length, and the pallet platform number according to detecting calculates its position.When distance was less than setting value between the wheel of pallet and the location detecting apparatus, location detecting apparatus sent the wheel signal that puts in place, and after the wheel of pallet slipped over location detecting apparatus, location detecting apparatus sent wheel and leaves signal.Utilize pallet that counter meter record followed the tracks of when entering material loading sintering track, the pallet platform number of process, again pallet platform number and pallet length are multiplied each other, thus the position of the pallet that obtains following the tracks of.And for the position of other pallet on the sintering machine, then directly by directly calculating with the pallet of being followed the tracks of pallet number at interval: the pallet number * pallet length at the pallet position+interval of tracking.
Because there are two wheels on same one side of every pallet, the wheel by pallet is divided into preceding half section and second half section with pallet.Whenever the wheel of pallet and location detecting apparatus distance during less than setting value, location detecting apparatus sends the wheel signal that puts in place, PLC receives wheel when putting signal in place, the wheel that pallet is described is just in time above location detecting apparatus, counter among the PLC adds 1, after the wheel of pallet leaves location detecting apparatus, location detecting apparatus sends wheel and leaves signal, PLC receives wheel when leaving signal, the wheel that pallet is described leaves location detecting apparatus, and the pallet position is in preceding half section.When PLC receives wheel when putting information in place once more, the counter among the PLC adds 1, when PLC receives wheel when leaving signal once more, illustrates to move to next pallet.When the position of other pallet enters material loading sintering track according to it among PLC the difference of the Counter Value among Counter Value and the current PLC calculate.
In the specific embodiment of the present invention, position detecting device constitutes near switch 2 by first, is installed in by the pallet track, as shown in Figure 1.When the wheel of pallet and first near the distance of switch 2 during less than the value set, first near switch 2 closures, to PLC transmission level signal " 1 "; After the wheel of pallet left, first near switch 2 disconnections, to PLC transmission level signal " 0 ".When PLC detects first near switch 2 closures, then the counter among the PLC adds 1.Because in sintering system, the circular flow in orbit of pallet on the sintering machine, cause the error of calculating when preventing the counter overflow among the PLC, set a maximal value, in the present embodiment, the maximal value of counter is set at the total platform number of pallet, and when Counter Value was counted greater than the total platform of pallet, then counter was changed to 0.
Tracking sintering trolley position method program flow process is referring to Fig. 2:
Step S201: program run begins;
Step S202: when the pallet injection followed the tracks of, write down current Counter Value, be designated as record value;
Step S203: judge whether first is closed near switch 2, if then enter step S204; Otherwise, enter step S207;
Step S204: counter adds 1;
Step S205: judge that whether current Counter Value is greater than the total platform number of pallet, if then enter step S206; Otherwise, enter step S207;
Step S206: counter is changed to 0;
Step S207: whether judge current Counter Value less than record value, if then enter step S208; Otherwise enter step S209;
Step S208: the position of calculating the pallet of following the tracks of: (the total platform number+Counter Value of pallet-record value) ÷ 2 * pallet length;
Step S209: the position of calculating the pallet of following the tracks of: (the total platform number+Counter Value of pallet-record value) ÷ 2 * pallet length;
Step S210: the position of the pallet that output is followed the tracks of;
Step S211: judge whether to finish calculating, if then enter step S212, EOP (end of program) to the pallet position of being followed the tracks of; If not, then return step S202.
Because every pallet has two pairs of wheels, whenever a pallet slips over first during near switch 2, first near closed twice of switch 2 front and back meeting, counter can add up 2, so when calculating the pallet position of following the tracks of, need the analog value that will calculate by Counter Value and record value divided by after 2, multiply by pallet length again, as step S208, step S209.
If need to calculate more accurately the pallet position of following the tracks of, then the pallet track other install again one near switch-second near switch 3, be implemented as follows:
Install second again near switch 3, as shown in Figure 3 mounted first near switch 2 is separated by a distance.First is pallet with half of two wheel spacing distances on limit near switch 2 and second spacing distance near switch 3.PLC judges that near the level signal of switch 3 output the wheel of pallet is at " first near switch 2 and second near switch 3 between " or " slipping over second near switch 3 " state near switch 2 and second according to first, if the pallet position that the wheel of pallet, then calculates tracking at " first near switch 2 and second near switch 3 between " state is with only to install first identical near the result of calculation of switch 2:
(the total platform number+Counter Value of pallet-record value) ÷ 2 * pallet length;
Or (Counter Value-record value) ÷ 2 * pallet length;
If the wheel of pallet at " slipping over second " state, then calculate near switch 3 the pallet positional value of following the tracks of add first near switch 2 and second near the distance between the switch 3, that is:
(the total platform number+Counter Value of pallet-record value) ÷ 2 * pallet length+first near switch 2 and second near the distance between the switch 3;
Or (Counter Value-record value) ÷ 2 * pallet length+first near switch 2 and second near the distance between the switch 3.
Claims (6)
1. device for tracking sintering trolley position, comprise location detecting apparatus, programmable logic controller (PLC), it is characterized in that, location detecting apparatus is installed in by the pallet track, the output terminal of location detecting apparatus links to each other with the input end of programmable logic controller (PLC), the pallet position that programmable logic controller (PLC) is followed the tracks of according to the signal and the pallet calculation of parameter of location detecting apparatus input, described location detecting apparatus comprises primary importance sensor and second place sensor, described primary importance sensor and the second place sensor distance at regular intervals are installed in by the pallet track, and described primary importance sensor links to each other with the input end of programmable logic controller (PLC) respectively with second place sensor.
2. device for tracking sintering trolley position as claimed in claim 1 is characterized in that, the spacing distance of described primary importance sensor and second place sensor is a pallet with half of two wheel spacing distances on limit.
3. device for tracking sintering trolley position as claimed in claim 1 or 2 is characterized in that, described position transducer is near switch.
4. a tracking sintering trolley position method is characterized in that, comprises the following steps:
A, at the other installation site of pallet track checkout equipment;
B, cooperate programmable logic controller (PLC) to calculate the pallet platform number that the pallet of following the tracks of enters material loading sintering track by location detecting apparatus;
C, the position of calculating the pallet of following the tracks of: when the other location detecting apparatus of pallet track was a position transducer, the position of tracked pallet was: pallet platform number * pallet length; When the location detecting apparatus of installing when the pallet track is other is the primary importance sensor that keeps at a certain distance away and second place sensor, the position of the pallet of calculate following the tracks of may further comprise the steps: c1, by primary importance sensor and the wheel of the signal judgement pallet of second place sensor and the relation of two position transducers, if the wheel of pallet then enters step c2 between primary importance sensor and second place sensor; If the wheel of pallet slips over second place sensor, then enter step c3;
C2, the position of calculating the pallet of following the tracks of: pallet platform number * pallet length;
C3, the position of calculating the pallet of following the tracks of: the spacing distance of pallet platform number * pallet length+primary importance sensor and second place sensor.
5. tracking sintering trolley position method as claimed in claim 4 is characterized in that described step b comprises the following steps:
B1, when the pallet of following the tracks of enters material loading sintering track, the recording counter value is designated as record value;
B2, when the wheel of pallet and location detecting apparatus distance during less than setting value, counter adds 1;
B3, judge that the value of counter is whether greater than the maximal value of setting, if then enter step b4; Otherwise enter step b5;
B4, counter are changed to 0;
B5, whether judge Counter Value less than record value, if then enter step b6; Otherwise enter step b7;
B6, calculating pallet platform number: (maximal value+Counter Value of setting-record value) ÷ 2;
B7, calculating pallet platform number: (Counter Value-record value) ÷ 2.
6. tracking sintering trolley position method as claimed in claim 5 is characterized in that, among the step b3, the maximal value of described setting is the total platform number of pallet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102012060A CN101082495B (en) | 2007-07-30 | 2007-07-30 | Device for tracking sintering trolley position and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102012060A CN101082495B (en) | 2007-07-30 | 2007-07-30 | Device for tracking sintering trolley position and method thereof |
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| Publication Number | Publication Date |
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| CN101082495A CN101082495A (en) | 2007-12-05 |
| CN101082495B true CN101082495B (en) | 2010-11-10 |
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| CN2007102012060A Expired - Fee Related CN101082495B (en) | 2007-07-30 | 2007-07-30 | Device for tracking sintering trolley position and method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5269496B2 (en) * | 2008-06-25 | 2013-08-21 | 新日鐵住金株式会社 | Pallet position recognition device and air leakage detection device for sintering machine |
| CN103196677B (en) * | 2012-01-10 | 2015-05-20 | 宝山钢铁股份有限公司 | Wheel state detecting method of sintering machines |
| CN110455080B (en) * | 2019-08-19 | 2024-03-22 | 江苏宏大特种钢机械厂有限公司 | Device and method for realizing controllable speed of trolley in belt roasting machine |
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