CN105151820B - A kind of control method of multigroup feed bin dump car - Google Patents
A kind of control method of multigroup feed bin dump car Download PDFInfo
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- CN105151820B CN105151820B CN201510352486.XA CN201510352486A CN105151820B CN 105151820 B CN105151820 B CN 105151820B CN 201510352486 A CN201510352486 A CN 201510352486A CN 105151820 B CN105151820 B CN 105151820B
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Abstract
The invention discloses a kind of control method of multigroup feed bin dump car, limit switch is respectively installed by trolley track both sides, carry out safeguard protection, encoder is installed in dolly driven pulley, record dolly and exercise track, exercised in dolly on path, installation carriage position verifying unit carries out position check and correction before every group of feed bin, position in storehouse instruction device is installed in each feed bin feeding mouth, both sides are installed by one group of limit switch and position indicator, system automatically confirms that whether the feeding mouth position of dolly feed opening and feed bin is accurately positioned, pass through the video monitoring apparatus on dolly, monitor whether the feed opening of dolly and the feeding mouth of feed bin coincide, ensure dolly in place, also find in time during feeding, whether material is expired, whether the phenomenons such as material is spilt, when dolly contraposition is not punctual, manual fine-tuning mode can be switched to, dolly is quickly adjusted in place, it ensure that dump car can fast and accurately reach corresponding feed bin, reduce the working strength of operating personnel, improve production efficiency and production safety simultaneously.
Description
Technical field
The present invention relates to a plant feed bin dump car, more particularly to a kind of control method of multigroup feed bin dump car.
Background technology
Raw material reaches high-order material by the percutaneous band feeding system of ground blanking bin and dump car needed for current steel mill steel-making
Storehouse, every group of feed bin has 10 to 14 storehouses.During daily feedstock transportation, raw material type is more, and conveying capacity is big, and raw material position in storehouse is more,
Bin blanking mouthful is smaller, and seldom, dump car, raw material easy batch mixing inaccurate to storehouse position in storehouse easily occurs and spilt spacing between storehouse and storehouse
Situations such as material.In feeding process, raw material has very long distance from the percutaneous band feeding system of ground blanking bin to high hopper, former
Expect up to high hopper and also need to a period of time, when complete material on some storehouse, belt filled system is not parking, between of short duration
Gap, dolly changes storehouse simultaneously, and ground blanking bin has begun to feed, before raw material reaches, dolly must be accurate to up to specified feed bin.
Need operative employee whether in place etc. must arrive scene manual confirmation dump car to storehouse at present；Because RECOVERY OF CONVERTER GAS is not held freely
It is also easy to produce gas leak platform temperature of being put in storage to high-order bunker platform, during converter producing and is up to more than 50-60 DEG C, adds substantial amounts of
Dust, site environment is extremely severe, is not suitable for personnel and stops for a long time；STEELMAKING PRODUCTION rhythm ratio is very fast, and the repair time is tighter,
Once dolly positioning is broken down, it is impossible to normal charging, whole STEELMAKING PRODUCTION is influenceed.Pass through the control to multigroup feed bin dump car
Method processed, improves the precise positioning and reliability of dump car, reduces manually operated and artificial scene confirms, lifting production
Efficiency.
The content of the invention
The purpose of the present invention is to solve the above problems, there is provided a kind of control method of multigroup feed bin dump car.
In order to achieve the above object, the present invention provides following technical scheme：A kind of controlling party of multigroup feed bin dump car
Method, comprises the following steps：
（1）Limit switch is respectively installed in trolley track both sides, takes normally closed point, plays safeguard protection, it is to avoid dolly is gone out
Rail；
（2）Encoder is installed in dolly driven pulley, record dolly exercises track；
（3）Exercised in dolly on path, installation carriage position verifying unit before every group of feed bin, dolly passes through the dress every time
Put, encoder record position is proofreaded automatically；
（4）Position verifying unit before first group of feed bin, is defined as initial bit, then to other positions verifying unit and
Each feed bin setting position parameter；
（5）Position in storehouse instruction device is installed in each feed bin feeding mouth, one group of limit switch and position indicator are installed in both sides,
System automatically confirms that whether the feeding mouth position of dolly feed opening and feed bin is accurately positioned；
（6）Video monitoring apparatus is installed on dolly, monitors whether the feed opening of dolly and the feeding mouth of feed bin coincide, really
Protect dolly really in place, and during charging, if material is full, if spill the phenomenon of material；
（7）When finding that dolly contraposition is not punctual, manual fine-tuning mode is switched to, dolly is quickly adjusted in place, it is ensured that
Dump car can fast and accurately reach corresponding feed bin.
The present invention has the advantages that compared with prior art：
A kind of conveyer belt replacing options that the present invention is provided, improve the accuracy and reliability of dump car contraposition, lifting
Efficiency, reduces the influence to STEELMAKING PRODUCTION, reduces personal injury.
Brief description of the drawings
Fig. 1 is the system schematic of the present invention；
Fig. 2 is the position in storehouse instruction device schematic diagram of the present invention；
Fig. 3 group bin location verifying unit control flows
Fig. 4 position in storehouse instruction device control flows
Fig. 5 dump cars control model is selected
Fig. 6 dump car system Automatic Positioning Control flows
Fig. 7 dump car encoder location control flows
Each part in figure is：
1 left safety margins position, 2 initial position verifying units, 3 groups of bin location verifying units, 4 trolley tracks, 5 feed bin groups, 6
Encoder, 7 dump cars, 8 video monitoring apparatus, 9 position in storehouse instruction devices, 10 right safety margins positions, 51 feed bin feeding mouths, 52 material
Position in storehouse indicator lamps, 56 postioning abutments, 77 are selected in indicator lamp, 54 selected position in storehouse indicator lamps, 55 in place for storehouse feeding mouth limit switch, 53
Dump car feed opening.
Embodiment
The technical scheme provided below with reference to specific embodiment the present invention is described in detail, it should be understood that following specific
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.
As shown in Fig. 1 to Fig. 7, the invention discloses a kind of control method of multigroup feed bin dump car, including it is following
Step：
1st, safeguard protection：Such as Fig. 1, Derivative limit on the left or on the right position is respectively mounted with the both sides of track, is used " close point ", input PLC systems
Signal of uniting is " 1 ", and the signal is represented with " green " small circle for " 1 " in host computer HMI pictures, when being kept off accordingly on dump car
When block touches the spacing or limit switch fault, PLC system detects limit signal for " 0 ", and " red " is used in host computer HMI pictures
Small circle represents that now dump car is out of service immediately and can not start, corresponding spacing report " safe spacing failure ".
2nd, position verifying unit：Such as Fig. 1 and Fig. 3, mainly the position of the record dolly of encoder is proofreaded and school
Just, it is ensured that small truck position it is accurate.Initial bit is set to the leftmost side in track（Zero-bit）Simultaneously as the correction of first group of feed bin
Position, correction bit is also provided with the left of other every group of feed bin, and the encoder position number of correction bit is being set after accurately measuring
Value.When dump car is run from left to right, correction bit is reached, system is automatically by the position of value revision encoder set in advance
Put.Check and correction control flow is shown in Fig. 3.LL in figure is the distance between group bin location verifying unit and dump car current location
（Absolute value, unit is rice）.Encoder when LJ senses correspondence link stopper on dump car for the group bin location verifying unit very first time
Record value and this group of bin location verifying unit setting value between difference（Absolute value, unit is rice）.
3rd, position in storehouse instruction device：Such as Fig. 2 and Fig. 4, limit switch 52 is installed in feed bin feeding mouth both sides（Sub-material storehouse is left and right
Limit switch）, indicator lamp 53 in place（Left and right indicator lamp, is green when lighting）, select position in storehouse indicator lamp 54（（Left and right is indicated
Lamp, is green when lighting））, select position in storehouse indicator lamp 55（Left and right indicator lamp, is green when lighting）；In dump car feed opening
Both sides are installed by postioning abutment 56（The link stopper of left and right two）.Dump car feed opening is automatically confirmed that with feed bin feeding mouth, together
When can be by the instruction of video monitoring apparatus and signal lamp, can be with remote acknowledgement.When there is red led, the storehouse is represented not
It is chosen；When there is two groups of green indicating lamps bright, display dump car, which is reached, specifies feed bin and positions.Detailed control flow is shown in figure
4。
TD is when dump car feed opening link stopper encounters the time for the spacing start recording being activated for the first time in figure.K is
The limit switch being activated is encountered by link stopper, signal by " 1 " → " 0 " number of times.
4th, dump car progress discharging, dump car control model are determined automatically as shown in figure 5, being divided into dump car system
Manual mode by position, encoder positioning, the positioning of position in storehouse instruction device, remote manual fine setting pattern and machine.
When system detectio is to position in storehouse instruction device and normal encoder, prioritizing selection automatic discharging pattern carries out discharging.
Dump car system is automatically positioned, as shown in fig. 6, completing and confirming to change storehouse when feed bin is set, dump car is worked as according to encoder
Front position and the encoder position of feed bin, are automatically selected to the left or to the right, high speed or low speed operation.
Exceed the maximum safety time TCZmax of setting, system failure alarm " dump car positioning time-out " between when running
And stop trolley travelling.When in maximum safety time TCZmax, whether in place position in storehouse instruction device confirms dolly, confirms
Position, system sends " dump car is in place " signal automatically.If fault-signal causes dump car out of service, to feeding system
System sends pre-warning signal, is taken emergency measures according to the control of feeding system.Wherein TC changes the time in storehouse, TCZ for record dolly:
Time required for the storehouse that high-speed cruising reaches next setting from current storehouse when dump car changes storehouse, moved according to dump car
Speed and the distance between position in storehouse, system is calculated automatically.TCZmax changes storehouse for dump car and reaches next set from a storehouse
Maximum safety time required for fixed storehouse, generally the 2 of TCZ times（It can be set according to actual conditions）, LC ought for dump car
Distance of the front position to setting storehouse（Unit is rice）.
When some feed bin position in storehouse instruction device breaks down, mainly limit switch is damaged, and is switched to encoder positioning
Pattern.Encoder is positioned as shown in fig. 7, completing when feed bin is set and confirming to change storehouse, dump car is according to encoder current location
With the encoder position of feed bin, automatically select to the left or to the right, high speed or low speed operation.Exceed the maximum of setting between when running
Safety time TCZmax, system failure alarm " dump car positioning time-out " simultaneously stops trolley travelling.When in maximum safety time
In TCZmax, dolly is judged in place according to encoder current location and feed bin setting position, " dump car is arrived system automatic spring
Position " confirms dialog box.Dolly is remotely checked according to video monitoring apparatus whether in place or scene confirms, be confirmed whether in 10S to
Position, if dolly fails in place, to click on "No" system and confirm not in place, if dolly is in place, clicks on "Yes" system and confirms dolly
In place.If not can confirm that in 10S, system sends alarm " confirming time-out "." confirming time-out " and " system confirms not in place ", be
System sends fault-signal automatically, sends pre-warning signal to feeding system, is taken emergency measures according to the control of feeding system.
Position in storehouse instruction device is positioned, and when encoder breaks down, is switched to position in storehouse instruction device station-keeping mode, is worked as feed bin
Setting is completed and confirms to change storehouse, and dump car is automatically selected to the left according to the position of current feed bin and the device position of setting feed bin
Or to the right.Time TCZ required for counting of carriers high-speed cruising, selection is high at a high speed or low speed operation, automatically begin to timing TC and
Calculating time TCZ, when TCZ is less than 10S, the operation of dump car automatic high speed is switched to low speed operation.Exceed between when running and set
Fixed maximum safety time TCZmax, system failure alarm " dump car positioning time-out " simultaneously stops trolley travelling.When in maximum
In safety time TCZmax, dolly is judged in place according to position in storehouse instruction device, system automatic spring " dump car is in place " confirms
Dialog box.Remotely check that whether in place or scene confirms dolly, is confirmed whether in place in 10S according to video monitoring apparatus, if
Dolly fails in place, to click on "No" system and confirm not in place, if dolly is in place, clicks on "Yes" system and confirms dolly in place.Such as
It not can confirm that in fruit 10S, system sends alarm " confirming time-out "." confirming time-out " and " system confirms not in place ", system is automatic
Fault-signal is sent, pre-warning signal is sent to feeding system, is taken emergency measures according to the control of feeding system.
Manual fine-tuning pattern, when dump car is because of above-mentioned 3 kinds of station-keeping modes, failure cause cause dolly stop and not in place
In the case of, or in the case that encoder and position in storehouse instruction device all fail, by setting dump car low speed run time,
Observed by video monitoring apparatus and confirm dolly in place.Pass through such a pattern, it is to avoid feeding system stops in emergency, cause belt
Upper a large amount of binders, while also avoiding dolly from not causing to spill material and batch mixing in place, and avoid personnel from going execute-in-place to confirm.
Manual mode by machine, is used in the case that encoder, position in storehouse instruction device and video monitoring apparatus all fail, this
The situation of kind seldom occurs, and is generally used for equipment debugging and parameter setting.
In addition to above-mentioned embodiment illustrates, the present invention can also have other embodiment, technology of the art
Personnel can also be appropriately modified and convert to above-mentioned embodiment.All use equivalent substitutions or the technology of equivalent transformation formation
Scheme, all falls within the protection domain of application claims.
Claims (2)
1. a kind of control method of multigroup feed bin dump car, it is characterised in that：Comprise the following steps：
（1）Limit switch is respectively installed in trolley track both sides, takes normally closed point, plays safeguard protection, it is to avoid dolly goes out rail；
（2）Encoder is installed in dolly driven pulley, dolly driving trace is recorded；
（3）On dolly driving path, installation carriage position verifying unit before every group of feed bin, dolly passes through the device every time, from
It is dynamic that encoder record position is proofreaded；
（4）Position in storehouse instruction device is installed in each feed bin feeding mouth, one group of limit switch and position indicator, system are installed in both sides
Automatically confirm that whether the feeding mouth position of dolly feed opening and feed bin is accurately positioned；
（5）Video monitoring apparatus is installed on dolly, monitors whether the feed opening of dolly and the feeding mouth of feed bin coincide, it is ensured that be small
Car is really in place, and during charging, if material is full, if spill the phenomenon of material；
（6）Dump car carries out discharging, when system detectio is to position in storehouse instruction device and normal encoder, and prioritizing selection is automatically fixed
Bit pattern carries out discharging, completes when feed bin is set and confirms to change storehouse, dump car is according to encoder current location and the volume of feed bin
Code device position, is automatically selected to the left or to the right, high speed or low speed operation；Exceed the maximum safety time of setting between when running,
System failure alarm " dump car positioning time-out " simultaneously stops trolley travelling；When in maximum safety time, position in storehouse instruction device
Whether in place to confirm dolly, confirm that system sends " dump car is in place " signal automatically in place；If fault-signal causes to unload
Trolley is out of service, and pre-warning signal is sent to feeding system, is taken emergency measures according to the control of feeding system；
（7）When some feed bin position in storehouse instruction device breaks down, it is switched to encoder station-keeping mode and carries out discharging：When feed bin is set
Complete calmly and confirm to change storehouse, dump car according to encoder current location and the encoder position of feed bin, automatically select to the left or
To the right, high speed or low speed operation；Exceed the maximum safety time of setting between when running, " dump car is fixed for system failure alarm
Position time-out " simultaneously stops trolley travelling；When in maximum safety time, according to encoder current location and the judgement of feed bin setting position
In place, system automatic spring " dump car is in place " confirms dialog box to dolly；Dolly is remotely checked according to video monitoring apparatus is
It is no in place or scene confirms, be confirmed whether in place in 10S, if dolly fails in place, to click on "No" system and confirm not in place, such as
Fruit dolly in place, clicks on "Yes" system and confirms dolly in place, if not can confirm that in 10S, and system sends alarm " confirming time-out "；
" confirming time-out " and " system confirms not in place ", system sends fault-signal automatically, and pre-warning signal is sent to feeding system, according to
The control of feeding system is taken emergency measures；
（8）When encoder breaks down, it is switched to position in storehouse instruction device station-keeping mode and carries out discharging；When feed bin setting is completed simultaneously
Storehouse is changed in confirmation, and dump car is automatically selected to the left or to the right according to the position of current feed bin and the position of setting feed bin；
Time TCZ required for counting of carriers high-speed cruising, selection is at a high speed or low speed is run, when automatically beginning to timing TC and calculating
Between TCZ, when TCZ be less than 10S, dump car automatic high speed operation is switched to low speed operation；
Exceed the maximum safety time TCZmax of setting between when running, system failure alarm " dump car positioning time-out " simultaneously stops
Only trolley travelling；
When in maximum safety time TCZmax, dolly is judged in place according to position in storehouse instruction device, " discharging is small for system automatic spring
Car is in place " confirm dialog box；
Remotely check that whether in place or scene confirms dolly, is confirmed whether in place in 10S, if dolly according to video monitoring apparatus
Fail in place, to click on "No" system and confirm not in place, if dolly is in place, clicks on "Yes" system and confirm dolly in place, if 10S
It not can confirm that inside, system sends alarm " confirming time-out "；" confirming time-out " and " system confirms not in place ", system sends event automatically
Hinder signal, send pre-warning signal to feeding system, taken emergency measures according to the control of feeding system；
（9）When dump car is because of above-mentioned 3 kinds of station-keeping modes, failure cause cause dolly stop and not in place in the case of, or work as
In the case that encoder and position in storehouse instruction device all fail, manual fine-tuning pattern is switched to, is transported by setting dump car low speed
The row time, observed by video monitoring apparatus and confirm dolly in place；
（10）Used in the case that encoder, position in storehouse instruction device and video monitoring apparatus all fail, using manual mould by machine
Formula carries out discharging.
2. a kind of control method of multigroup feed bin dump car according to claim 1, it is characterised in that：Verifying unit pair
The method of small truck position check and correction comprises the following steps：
（1）Judge whether dump car moves right, as not being to lock verifying unit, then continue next step in this way：
（2）Judge whether the distance between group bin location verifying unit and dump car current location are less than setting value, if not being
Verifying unit is then locked, then continues next step in this way；
（3）Activate verifying unit；
（4）The record value of encoder is with being somebody's turn to do when the judgement group bin location verifying unit very first time senses correspondence link stopper on dump car
Whether difference is less than setting value, the system alarm if not being, dump car error between the setting value of group bin location verifying unit
Greatly, if it is dump car position is normal.
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