CN108588341A - A kind of RH charging systems and its charging process - Google Patents
A kind of RH charging systems and its charging process Download PDFInfo
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- CN108588341A CN108588341A CN201810486895.2A CN201810486895A CN108588341A CN 108588341 A CN108588341 A CN 108588341A CN 201810486895 A CN201810486895 A CN 201810486895A CN 108588341 A CN108588341 A CN 108588341A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
Abstract
The present invention provides a kind of RH charging systems, including vacuum tank, several feeding unit materials being connect with vacuum tank, and the control system that feeds to vacuum tank for controlling feeding unit material；Each feeding unit material includes scale hooper, alloy vacuum bucket, vacuum feeder and several feed bins, several feed bins are connect with the feed inlet of scale hooper, and each one oscillating feeder of setting between feed bin and scale hooper, the discharge port of scale hooper is connect by discharge valve with the feed inlet of alloy vacuum bucket, and the discharge port of alloy vacuum bucket is connect by vacuum feeder with the vacuum tank.The control that the present invention feeds to feeding unit material to vacuum tank by control system, realize the Automatic Control of charging system, and rapid loading during normal production, avoid the interference of manual operation factor during feeding, fault-tolerance is strong, and pattern is added simultaneously in more alloys that cooperation level two calculates, and improves charging rate, the production cycle is shortened, ensures high efficiency, the continuity of process for making production.
Description
Technical field
The invention belongs to metallurgy industry steel-making Refining Technology fields, and in particular to a kind of RH charging systems and its charging
Method.
Background technology
With higher and higher to high-quality steel grade demand in recent years, RH（The abbreviation of vacuum circulation degassing）Device is as smelting
The important equipment of high-quality steel grade is refined, more and more steel mills use RH techniques in STEELMAKING PRODUCTION flow, are mainly used to give birth to
Produce the high added values steel grades such as IF steel, silicon steel, pipe line steel, low carbon high-strength steel.RH equipment is mainly used for dehydrogenation, decarburization, deoxidation
With fine tuning molten steel composition and temperature etc., carbon content is preferably minimized the main productive target that value has become RH equipment.
The principle of RH is immersed dip pipe in pending ladle molten steel, after reaching certain vacuum degree in vacuum tank,
The static pressure difference for coordinating tedge Argon to generate, molten steel just enters from tedge in vacuum tank, and down-comer is flowed in vacuum tank,
So constantly recycle repeatedly.The gases such as argon gas, hydrogen, the carbon monoxide in vacuum tank in molten steel are flowed through in molten steel cyclic process
It is pumped；Alloy is directly added into molten steel under vacuum conditions simultaneously, and yield of alloy is high, and energy Quick uniform mixing, place
It is short, efficient to manage the period.
And charging system is the Core equipment of RH devices, and entire RH devices control most complicated system, its control
Also just at RH safely, effectively, economy, the key of fast and efficient production.Charging system mainly include feed bin, oscillating feeder,
Scale hooper, discharging quadrant valve, alloy vacuum hopper, alloy vacuum feeder, heat-insulated flap valve, alloy vacuum bucket take out vacuum breaker dress
It sets.Under normal circumstances, alloy is discharged into through oscillating feeder in the scale hooper of lower section in feed bin, is unloaded through discharging quadrant valve after weighing
Enter in alloy vacuum bucket, while alloy vacuum bucket need to coordinate and evacuate brokenly do-nothing operation, the heat-insulated flap valve of lower section need to be in alloy
It synchronizes and opens when vacuum feeder starts, smoothly alloy to be added in vacuum tank molten steel；However, entirely the opening and closing of control process is believed
At numbers up to tens, improves RH material alloying speed and have become modernization steel mill demand urgently to be resolved hurrily.
At present there is following a few classes in RH charging systems control strategy：On the one hand, the equipment such as vacuum alloy bucket are mostly logical
It crosses computer concentration to manually control, i.e., charging system is controlled according to process step-by-step operation by operating personnel, or is only real
The semiautomation operation of current situation portion；On the other hand, RH alloys single addition is more, addition batch is more, and manual operation considerably increases
The labor intensity of worker easily causes the production accidents such as wrong material, returning charge, while extending the production time, and long processing period causes steel
Liquid temperature drop is larger, and difficulty is brought to continuous casting working procedure below.
The adding speed of RH device alloys have become modernization rapidly and efficiently refine keep in check, especially RH refining be converter
Connect front and back process between continuous casting, the rhythm and cycle match of the smelting cycle of RH concerning entire production procedure, therefore, RH
Charging system it is quick, be efficiently just particularly important.
Invention content
The purpose of the present invention is single addition is more during overcoming existing RH to feed, it is more that batch is added, manual operation is big
The big labor intensity for increasing worker easily causes the production accidents such as wrong material, returning charge, and low production efficiency, and the production cycle is long, causes
The larger problem of temperature drop.
For this purpose, an embodiment of the present invention provides a kind of RH charging systems, including vacuum tank, connect with vacuum tank several
Feeding unit material, and the control system that feeds to vacuum tank for controlling feeding unit material；Each feeding unit material includes claiming
Batch box, alloy vacuum bucket, vacuum feeder and several feed bins, several described feed bins are connect with the feed inlet of scale hooper,
And an oscillating feeder is each set between feed bin and scale hooper, the discharge port of the scale hooper is true with alloy by discharge valve
The discharge port of the feed inlet connection of sky bucket, the alloy vacuum bucket is connected by vacuum feeder and tremie pipe with the vacuum tank
It connects.
Further, the control system includes the dispensing input module for setting feeding unit material dispensing parameter, is used for
Judge that feeding unit material executes the Predicated execution module of program, and the display module for showing each working condition of feeding unit material.
In addition, the present invention also provides the charging process of above-mentioned RH charging systems, include the following steps：
1) corresponding charger sheet is arranged to each feeding unit material, charging material kind quantity set needed for the steel grade according to planned production
Dispensing serial number expects that kind of a weight, material kind sequence set dispensing parameter to each dispensing serial number according to required charging；
2) control system executes charging process successively by dispensing numeric order, and control system controls feeding when executing each dispensing serial number
Unit executes the weighing sub-process that alloying ingredient is entered scale hooper by feed bin successively, by scale hooper discharging unloading to alloy vacuum bucket
Material for making clothes flow, and be added to the addition sub-process of vacuum tank by alloy vacuum bucket, and by judging the dispensing parameter of input, setting
Whether the fixed performance of situation and previous sub-process in batches meets the execution requirement of each corresponding sub-process, is executed if meeting
Corresponding sub-process executes next dispensing serial number if not meeting；
3) wait for that the addition sub-process of the last one dispensing serial number on charger sheet is finished, that is, complete the charger sheet it is corresponding on
The charging process of material unit；
4) after the charging process of all feeding unit materials to be done being connect with vacuum tank, that is, the charging of entire RH charging systems is completed
Process.
Further, dispensing parameter includes storehouse number and dispensing value in the step 2)；For each of first dispensing serial number
Sub-process executes requirement：First judge whether the storehouse number of input is the feed bin of corresponding feeding unit material and dispensing value is more than zero, if defeated
The storehouse number entered is not that the feed bin of corresponding feeding unit material or dispensing value are not more than zero, then executes second dispensing serial number, if input
Storehouse number is the feed bin of corresponding feeding unit material and dispensing value is more than zero, then executes the weighing sub-process of the first dispensing serial number, wait weighing
After sub-process is finished, if second dispensing serial number is set as not in batches, second dispensing serial number being executed, if second is matched
Material serial number is set as in batches, then the discharging sub-process for executing first dispensing serial number then executes after discharging sub-process is finished
Second dispensing serial number is performed simultaneously the addition sub-process of first dispensing serial number.
Further, the execution in the step 2) for each sub-process of dispensing serial number in addition to first dispensing serial number
It is required that：Whether the storehouse number for first judging to execute the input of dispensing serial number is the feed bin of corresponding feeding unit material and dispensing value is more than zero, if defeated
The storehouse number entered is not that the feed bin of corresponding feeding unit material or dispensing value are not more than zero, then executes next dispensing sequence of the dispensing serial number
Number, otherwise judge the second dispensing serial number to executing dispensing serial number whether there is or not in batches, if be all not in batches if execute the execution dispensing sequence
Number weighing sub-process, wait for that upper batch of material has weighed and discharging after executes the execution dispensing serial number in scale hooper if having in batches
Weighing sub-process；After weighing sub-process is finished, if next dispensing serial number of the execution dispensing serial number is set as not in batches,
Next dispensing serial number of the execution dispensing serial number is then executed, if next dispensing serial number of the execution dispensing serial number is set as in batches,
Then judging the second dispensing serial number, whether there is or not in batches to dispensing serial number is executed；If be all not in batches if execute unloading for the execution dispensing serial number
Material for making clothes flow；Wait for executing the discharging sub-process of the execution dispensing serial number if having in batches after vacuum tank is added in upper batch of material；It unloads
After material for making clothes flow is finished, the next dispensing serial number for executing the execution dispensing serial number is performed simultaneously adding for the execution dispensing serial number
Enter sub-process.
Further, the charger sheet include for input corresponding batch alloy whether in batches, storehouse number, dispensing value it is default
Determine region, the setting regions for set the number that is delayed, for showing the practical weighing region for having weighed weight, and for showing
Show the vacuum process region of each sub-process state of feeding unit material.
Further, the weighing sub-process detailed process：Discharge valve is first closed, the vibration connected on corresponding feed bin is started
Batcher so that the alloying ingredient in feed bin enters scale hooper, waits for the difference and dispensing of real-time weight and initial weight in scale hooper
Ingredients by weight is set in list and unanimously then stops oscillating feeder, completes to weigh sub-process.
Further, the discharging sub-process detailed process：First judge whether pressure is more than 90kPa in alloy vacuum bucket,
If no more than the air valve for opening alloy vacuum bucket if 90kPa, after pressure in alloy vacuum bucket is more than 90kPa, broken sky is closed
Valve opens the upper cup valve and discharge valve of alloy vacuum bucket, and starting will be in the alloying ingredient discharging in scale hooper to alloy vacuum bucket；
Delay 5s closes discharge valve after scale hooper weight is less than 5kg, completes discharging sub-process.
Further, the addition sub-process detailed process：First close upper cup valve on alloy vacuum bucket, lower cup valve, true
Empty valve and air valve, then opening pressure in the vacuum valve reduction alloy vacuum bucket on alloy vacuum bucket makes its pressure be less than
35kPa, then close vacuum valve successively, start vacuum feeder, open heat-insulated flap valve, the lower cup valve of opening on vacuum tank, make
It obtains alloying ingredient in alloy vacuum bucket to be added into vacuum tank, after feed time to be set arrives, closes alloy vacuum bucket successively
Lower cup valve, stop vacuum feeder, close heat-insulated flap valve, open air valve；Wait for that pressure is more than 90kPa in alloy vacuum bucket
Afterwards, the upper cup valve closed air valve successively, open alloy vacuum bucket completes that sub-process is added.
Compared with prior art, beneficial effects of the present invention：
(1) each feeding unit material is mutual indepedent in this RH charging systems provided by the invention, dispensing and can complete alloy simultaneously
Each flow such as weighing, discharging, addition；Can also asynchronous dispensing, according to production stage, liquid steel sampling feedback result is asynchronous matches
Material, realizes flexibility, the rapidity of charging system.
(2) charger sheet can arbitrarily choose one or more in the charging process of this RH charging systems provided by the invention
It corresponds to feed bin material kind, can same batch or batch weighing, discharging between material kind（To alloy vacuum bucket）, be added（To vacuum tank）,
And in batches whether point can be arbitrarily arranged as required in batches, can be chosen between two material kind of charger sheet arbitrary neighborhood, dispensing is flexible.
(3) charging process of this RH charging systems provided by the invention can be automatically performed alloy after charger sheet confirmation
Discharging, each sub-process is added in weighing, is not necessarily to manual intervention, and track each flow state on HMI, alleviates the labor of worker
Fatigue resistance reduces production accident occurrence probability, improves production efficiency.
The present invention is described in further details below with reference to attached drawing.
Description of the drawings
Fig. 1 is the structural schematic diagram of RH charging systems of the present invention；
Fig. 2 is the control flow chart of feeding unit material in the present invention；
Fig. 3 is the control flow chart that sub-process is weighed in the present invention；
Fig. 4 is the control flow chart of discharging sub-process in the present invention；
Fig. 5 is the control flow chart that sub-process is added in the present invention；
Fig. 6 is the schematic diagram of charger sheet in the present invention.
Reference sign：1, vacuum tank；2, feeding unit material；3, feed bin；4, oscillating feeder；5, flapper valve；6, it weighs
Bucket；7, discharge valve；8, upper cup valve；9, lower cup valve；10, vacuum valve；11, air valve；12, alloy vacuum bucket；13, vacuum is fed
Machine；14, heat-insulated flap valve；15, tremie pipe.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Term " first ", " second " are used for description purposes only, be not understood to indicate or imply relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more this feature；In the description of the present invention, unless otherwise indicated, the meaning of " multiple ", " several "
It is two or more.
Embodiment 1：
As shown in Figure 1, present embodiments providing a kind of RH charging systems, which is characterized in that including vacuum tank 1, connect with vacuum tank 1
Several feeding unit materials 2 connect, and the control system that feeds to vacuum tank 1 for controlling feeding unit material 2, each feeding
Unit 2 include scale hooper 6, alloy vacuum bucket 12, vacuum feeder 13 and several feed bins 3, several described feed bins 3 with
The feed inlet of scale hooper 6 connects, and each one oscillating feeder 4 of setting between feed bin 3 and scale hooper 6, the scale hooper 6
Discharge port is connect by discharge valve 7 with the feed inlet of alloy vacuum bucket 12, and the discharge port of the alloy vacuum bucket 12 passes through vacuum
Batcher 13 and tremie pipe 15 are connect with the vacuum tank 1.Specifically, there are three feeding unit material 2 described in the present embodiment sets, often
A feeding unit material 2 is set there are four feed bin 3, and corresponding each feeding unit material 2 respectively sets a charger sheet, and feeding is controlled by control system
Unit 2 carries out feeding by charger sheet, and between charger sheet independently of each other, each charger sheet can arbitrarily choose that one or more its is right
3 material kind of feed bin is answered, it can same batch or batch weighing, discharging between material kind（To alloy vacuum bucket 12）, be added（To vacuum tank 1）,
It weighs according to setting sequence with batch i.e. batch material kind, and is mixed in scale hooper 6, after the completion of waiting for that all material kinds of the batch weigh
Discharging, addition；In batches i.e. after upper batch of material weighs completion and discharging is closed to alloy vacuum bucket 12, discharge valve 7, the batch material kind
It could start to weigh, after weighing finishes and vacuum tank 1 is added in upper batch material, batch of material kind ability discharging to alloy vacuum bucket 12
And it is added；With between batch material kind as required arbitrarily setting sequencing, respectively in batches between defective material kind interval time as required with
Meaning setting, with meet production technology to material kind of an addition sequence, the different of period be added require, when being arranged in batches after batch weigh
It is carried out at the same time with the addition of preceding batch, has greatly saved the time.
The present embodiment is to contain three feeding unit materials 2 in RH charging systems（That is three charger sheets）For above-mentioned RH is described in detail
The charging process of charging system, includes the following steps：
(1) corresponding charger sheet, several dispensing serial numbers of each charger sheet are arranged to each feeding unit material 2, and match to each
Expect that serial number sets dispensing parameter；Wherein charging material kind quantity set needed for steel grade of the number of dispensing serial number according to planned production,
Dispensing parameter expects that kind of a weight, material kind sequence are set according to required charging；Each charger sheet is set there are six matching in the present embodiment
Expect serial number, thus every time at most can six batch alloys of facility.
As shown in fig. 6, charger sheet include for input corresponding batch alloy whether in batches, storehouse number, dispensing value it is presetting
Region, the setting regions for set the number that is delayed, for showing the practical weighing region for having weighed weight, and for showing
The vacuum process region of each sub-process state of feeding unit material.Pre-setting area be manually entered or level two set window
Mouthful, input whether in batches, storehouse number, dispensing value, storehouse number input after material name show automatically, forbid inputting the non-charger sheet pair automatically
Answer feed bin storehouse number；After charger sheet confirms, if in batches, storehouse number, dispensing value reach setting regions, the delay number of setting regions automatically
Need to by be manually entered or level two set；Each sub-process state that vacuum process region is shown, including weigh and start, claim
Amount terminates, discharging, alloy is added, alloy terminates five states, and green is shown after a certain state has executed.
(2) control system executes charging process successively by dispensing numeric order, control system control when executing each dispensing serial number
Feeding unit material processed executes the weighing sub-process that alloying ingredient is entered scale hooper 6 by feed bin 3 successively, by 6 discharging of scale hooper to alloy
The discharging sub-process of vacuum bucket 12, and be added to the addition sub-process of vacuum tank 1 by alloy vacuum bucket 12, and it is defeated by judging
Whether the performance of situation and previous sub-process meets the execution of each corresponding sub-process and wants in batches for the dispensing parameter that enters, setting
It asks, corresponding sub-process is executed if meeting, next dispensing serial number is executed if not meeting.Wherein, control system includes for setting
The dispensing input module for determining 2 dispensing parameter of feeding unit material, for judging that feeding unit material 2 executes the Predicated execution module of program, with
And the display module for showing 2 each working condition of feeding unit material.
Control system controls the detailed process that feeding unit material 2 feeds as shown in Fig. 2, below only by taking a charger sheet as an example in detail
Describe in detail bright, the storehouse number of the feed bin 3 of the corresponding feeding unit material of the charger sheet 2 is No. 1-4, the control processes of other charger sheets phase therewith
Together.
A) first dispensing serial number is executed；First judge whether the storehouse number of input is 1 or 2 or 3 or No. 4 and setting dispensing value is big
In zero, if the storehouse number of input is illegal or dispensing value is not more than zero, second dispensing serial number is executed, if the storehouse number of input is pair
It answers the feed bin 3 of feeding unit material 2 and dispensing value is more than zero, then execute the weighing sub-process of the first dispensing serial number, sub-process to be weighed
After being finished, if second dispensing serial number is set as not in batches, second dispensing serial number being executed, if second dispensing serial number
It is set as in batches, then executes the discharging sub-process of first dispensing serial number, after discharging sub-process is finished, then executes second
Dispensing serial number is performed simultaneously the addition sub-process of first dispensing serial number.
B) second dispensing serial number is executed；First judge input whether storehouse number is 1 or 2 or 3 or 4 and setting dispensing value is more than
Zero, if inputting illegal or dispensing value is not more than zero, third dispensing serial number is executed, otherwise judges that second dispensing serial number has
Without in batches；If second dispensing serial number be set as not in batches if execute second dispensing serial number weighing sub-process, if second
Dispensing serial number is set as then judging whether upper batch of material has weighed and discharging finishes in batches；If upper batch of material does not have weighing and discharging finishes
It then waits for, the weighing sub-process of second dispensing serial number is executed if upper batch of material has weighed and discharging finishes；Second dispensing sequence
Number weighing sub-process be finished after, if third dispensing serial number is set as not in batches, executing third dispensing serial number, if
Third dispensing serial number is set as in batches, then judges that whether there is or not in batches for second dispensing serial number；If second dispensing serial number is set as
The discharging sub-process of second dispensing serial number is not executed then in batches；Judge upper batch of material if second dispensing serial number is set as in batches
Vacuum tank whether has been added to finish；It is not added if vacuum tank finishes and waits for if upper batch of material, executed if upper batch of material has been added to finish
The discharging sub-process of second dispensing serial number；After the discharging sub-process of second dispensing serial number is finished, executes third and match
Material serial number is performed simultaneously the addition sub-process of second dispensing serial number.
C) third dispensing serial number is executed；First judge input whether storehouse number is 1 or 2 or 3 or 4 and setting dispensing value is more than
Zero, if inputting illegal or dispensing value no more than the 4th dispensing serial number is executed if zero, otherwise judges second and third is a matches
Expect that whether there is or not in batches for serial number；If be all not in batches if execute the weighing sub-process of third dispensing serial number, if having in batches judge on
Whether batch of material has weighed and discharging finishes；It is waited for if upper batch of material does not have weighing and discharging to finish, if upper batch of material has been weighed and unloaded
Material finishes, and executes the weighing sub-process of third dispensing serial number；After the weighing sub-process of third dispensing serial number is finished,
If the 4th dispensing serial number is set as not in batches, executing the 4th dispensing serial number, if the 4th dispensing serial number is set as in batches,
Then judge that whether there is or not in batches for second and third dispensing serial number；If be all not in batches if execute the discharging subflow of third dispensing serial number
Journey；Judge whether upper batch of material has been added vacuum tank and has finished if having in batches；It is not added if vacuum tank finishes and waits for if upper batch of material, if
Upper batch of material, which has been added, to be finished, and the discharging sub-process of third dispensing serial number is executed；The discharging sub-process of third dispensing serial number is held
After row, the addition sub-process that the 4th dispensing serial number is performed simultaneously third dispensing serial number is executed.
D) the 4th dispensing serial number is executed；First judge input whether storehouse number is 1 or 2 or 3 or 4 and setting dispensing value is more than
Zero, if inputting illegal or dispensing value no more than the 5th dispensing serial number is executed if zero, otherwise judge second and third it is a and
Whether there is or not in batches for 4th dispensing serial number；If be all not in batches if execute the 4th dispensing serial number weighing sub-process, if having in batches
Then judge whether upper batch of material has weighed and discharging finishes；It is waited for if upper batch of material does not have weighing and discharging to finish, if upper batch of material is
It weighs and discharging finishes the weighing sub-process for then executing the 4th dispensing serial number；After weighing sub-process is finished, if the 5th
Dispensing serial number is set as not in batches, then executes the 5th dispensing serial number, if the 5th dispensing serial number is set as in batches, judging the
Two and third and the 4th dispensing serial number whether there is or not in batches；If be all not in batches if execute the 4th dispensing serial number discharging subflow
Journey；Judge whether upper batch of material has been added vacuum tank and has finished if having in batches；It is not added if vacuum tank finishes and waits for if upper batch of material, if
The discharging sub-process for finishing and then executing the 4th dispensing serial number has been added in upper batch of material；After discharging sub-process is finished, the is executed
Five dispensing serial numbers are performed simultaneously the addition sub-process of the 4th dispensing serial number.
E) the 5th dispensing serial number is executed；First judge input whether storehouse number is 1 or 2 or 3 or 4 and setting dispensing value is more than
Zero, if inputting illegal or dispensing value no more than the 6th dispensing serial number is executed if zero, otherwise judge second and third it is a and
Whether there is or not in batches for 4th and the 5th dispensing serial number；If be all not in batches if execute the 5th dispensing serial number weighing sub-process,
Judge whether upper batch of material has weighed and discharging finishes if having in batches；It is waited for if upper batch of material does not have weighing and discharging to finish, if
Upper batch of material has weighed and discharging finishes the weighing sub-process for then executing the 5th dispensing serial number；After weighing sub-process is finished,
If the 6th dispensing serial number is set as not in batches, executing the 6th dispensing serial number, if the 6th dispensing serial number is set as in batches,
Then judge that whether there is or not in batches for second and third and the 4th and the 5th dispensing serial number；If be all not in batches if execute the 5th match
Expect the discharging sub-process of serial number；If it is promising in batches if judge whether upper batch of material has been added vacuum tank and has finished；If upper batch of material is not added
Vacuum tank finishes, and waits for, and the discharging sub-process of the 5th dispensing serial number is executed if upper batch of material has been added and has finished；Discharging subflow
After journey is finished, the addition sub-process that the 6th dispensing serial number is performed simultaneously the 5th dispensing serial number is executed.
F) the 6th dispensing serial number is executed；Judge input whether storehouse number is 1 or 2 or 3 or 4 and setting dispensing value is more than zero,
Terminate no more than material alloying if zero if inputting illegal or dispensing value, otherwise judge second and third it is a and the 4th and the
Whether there is or not in batches for five and the 6th dispensing serial number；If be all not in batches if execute the 6th dispensing serial number weighing sub-process, if
Have and then judges whether upper batch of material has weighed and discharging finishes in batches；It is waited for if upper batch of material does not have weighing and discharging to finish, if on
Batch of material has weighed and discharging finishes the weighing sub-process for then executing the 6th dispensing serial number；After weighing sub-process is finished, then
Judge second and third and the 4th and the 5th and the 6th dispensing serial number whether there is or not in batches, if be all not in batches if execute the
The discharging sub-process of six dispensing serial numbers, judges whether upper batch of material has been added vacuum tank and has finished if having in batches；If upper batch of material is not
Vacuum tank is added to finish, waits for, the discharging sub-process of the 6th dispensing serial number is executed if upper batch of material has been added and has finished；Discharging
After sub-process is finished, the addition sub-process of the 6th dispensing serial number is executed；Sub-process is added to be finished i.e. material alloying
Terminate.
Wherein, the detailed process of above-mentioned weighing sub-process is as shown in figures 1 and 3, is first shut off discharge valve 7 and waits for its pass
It closes in place, 6 initial weight W of storage scale hooper0；Start gear corresponding to oscillating feeder 4 and opening that setting storehouse number is correspondingly connected with
Plate valve 5, waits the W that weighed（The real-time weight Wt of scale hooper and initial weight W0Difference）It is consistent with setting weight, stop vibration to
Material machine 5 simultaneously closes flapper valve 5, and weighing terminates.
The detailed process of above-mentioned discharging sub-process is as shown in Figure 1 and Figure 4, first determines whether in alloy vacuum bucket 12 whether is pressure
More than 90kPa 12 internal pressure of alloy vacuum bucket is waited for if no more than the air valve 11 connected on alloy vacuum bucket 12 is opened if 90kPa
After power is more than 90kPa, air valve 11 is closed, the upper cup valve 8 and discharge valve 7 of alloy vacuum bucket 12 is opened, starts discharging, will weigh
In alloying ingredient discharging to alloy vacuum bucket 12 in bucket 6；Delay 5s closes discharge valve 7 after 6 weight of scale hooper is less than 5kg,
Complete discharging sub-process.Pass through a period of time that is delayed during this（5s）Closing discharge valve 7 afterwards avoids alloy material from not unsnatching just pass
Discharge valve 7 is closed, while having been unsnatched prevented also from the alloy material occurred in existing production, but 6 weight of scale hooper is small in zero
The problem of excursions.
Above-mentioned addition sub-process detailed process is as shown in Figure 1 and Figure 5, first waits for alloy that delay is added first and completes, closes
The vacuum valve 10 and air valve 11 connected on upper cup valve 8, lower cup valve 9 and alloy vacuum bucket 12 on alloy vacuum bucket 12, so
Opening pressure in the reduction alloy vacuum of vacuum valve 10 bucket 12 connected on alloy vacuum bucket 12 afterwards makes its pressure be less than 35kPa, then
Vacuum valve 10 is closed successively, starts vacuum feeder 13, open heat-insulated flap valve 14, the lower cup valve 9 of opening on vacuum tank 1, is made
It obtains alloying ingredient in alloy vacuum bucket 12 to be added into vacuum tank 1, (feed time is according to weight alloy for feed time to be set
And 13 delivery rate of vacuum feeder is calculated and obtain automatically) arrive after, close lower cup valve 9, the stopping of alloy vacuum bucket 12 successively
Vacuum feeder 13 closes heat-insulated flap valve 14, opens air valve 11；After pressure in alloy vacuum bucket 12 is more than 90kPa, according to
The secondary upper cup valve 8 closed air valve 11, open alloy vacuum bucket 12, completes that sub-process is added.
The execution state of above-mentioned each sub-process can be shown in the vacuum process region of charger sheet, people easy to operation
Member controls rhythm of production, is also used to judge flow whether to perform normally；It advanced optimizes, the aobvious of control system can be passed through simultaneously
Show each flow state of module tracks, if since equipment fault causes flow to be interrupted, control system mark be completed flow with
And Current interrupt flow, and preserve related data.
(3) it waits for that the addition sub-process of the last one dispensing serial number on charger sheet is finished, that is, it is single-phase to complete the dispensing
The charging process for the feeding unit material answered.
(4) after the charging process of all feeding unit materials 2 to be done being connect with vacuum tank 1, that is, entire RH chargings system is completed
The charging process of system；And wherein each feeding unit material 2 independently of each other, dispensing and can complete alloy weighing, discharging, addition etc. simultaneously
Each sub-process；Can also asynchronous dispensing, according to production stage, the asynchronous dispensing of liquid steel sampling feedback result.
Embodiment 2：
The present embodiment further illustrates the present invention actually holding for RH charging systems by taking charger sheet setting dispensing parameter in Fig. 6 as an example
Row process.
a）After charger sheet starts execution, 180kg sulphur iron, the vibrating feed of feed bin connection corresponding with storehouse number 1 are weighed first
After machine starts, serial number 1 corresponding " weighing starts " becomes green in charger sheet, and serial number 1 corresponds to " weighing terminates " after the completion of weighing
Become green.
b）180kg sulphur iron is stored in scale hooper, continues to weigh 60kg carbon dusts, feed bin connection corresponding with storehouse number 3 is shaken
After dynamic batcher starts, charger sheet serial number 2 corresponding " weighing starts " becomes green, and serial number 2 is corresponding after the completion of weighing " weighs
Terminate " become green.
c）After waiting for that 60kg carbon dusts weigh, unloaded into alloy vacuum bucket together with 180kg sulphur iron and 60kg carbon dusts, discharging is complete
Become green at rear serial number 1 " discharging " corresponding with serial number 2.
d）After the completion of step c) is executed, alloy vacuum bucket starts to vacuumize and start vacuum feeder, opens heat-insulated turnover panel
Valve, the lower cup valve for opening alloy vacuum bucket, 180kg sulphur iron are initially added into vacuum tank with 60kg carbon dusts, each equipment after addition
Restore to corresponding state by flow；Serial number 1 " alloy process " corresponding with serial number 2 is equal after the vacuum valve of alloy vacuum bucket is opened
Become green, serial number 1 " alloy addition " corresponding with serial number 2 becomes green after the lower cup valve of alloy vacuum bucket is opened, and adds
Serial number 1 " alloy terminates " corresponding with serial number 2 becomes green after entering.
e）After the completion of step c) is executed, start to weigh 200kg ferrotianiums, the vibrating feed of feed bin connection corresponding with storehouse number 2
After machine starts, charger sheet serial number 3 corresponding " weighing starts " becomes green, and serial number 3 corresponds to " weighing terminates " and becomes after the completion of weighing
For green.
f）200kg ferrotianiums are stored in scale hooper, continue to weigh 78kg ferro-borons, feed bin connection corresponding with storehouse number 4 is shaken
After dynamic batcher starts, charger sheet serial number 4 corresponding " weighing starts " becomes green, and serial number 4 is corresponding after the completion of weighing " weighs
Terminate " become green.
g）78kg ferro-borons weigh complete and step d) executeds after the completion of, then 200kg ferrotianiums unloaded together with 78kg ferro-borons to
In alloy vacuum bucket, serial number 3 " discharging " corresponding with serial number 4 becomes green after the completion of discharging.
h）After the completion of step g) is executed, alloy vacuum bucket starts to vacuumize and start vacuum feeder, opens heat-insulated turnover panel
Valve opens cup valve under alloy vacuum bucket, and 200kg ferrotianiums are initially added into vacuum tank with 78kg ferro-borons, and each equipment is pressed after addition
Flow is restored to corresponding state；Serial number 3 " alloy process " corresponding with serial number 4 becomes after the vacuum valve of alloy vacuum bucket is opened
For green, serial number 3 " alloy addition " corresponding with serial number 4 becomes green after the lower cup valve of alloy vacuum bucket is opened, and is added
After serial number 3 " alloy terminates " corresponding with serial number 4 become green.
i）After the completion of step g) is executed, start to weigh 20kg carbon dusts, the oscillating feeder of feed bin connection corresponding with storehouse number 3
After startup, charger sheet serial number 6 corresponding " weighing starts " becomes green, and serial number 6 corresponds to " weighing terminates " and becomes after the completion of weighing
Green.
j）After the completion of 20kg carbon dusts weigh completion and step h) executeds, then 20kg carbon dusts are unloaded into alloy vacuum bucket, are unloaded
Serial number 6 corresponding " discharging " becomes green after the completion of material.
k）After the completion of step j) is executed, be delayed 30s, and alloy vacuum bucket starts to vacuumize and start vacuum feeder, open
Heat-insulated flap valve, the lower cup valve for opening alloy vacuum bucket, 20kg carbon dusts are initially added into vacuum tank, and each equipment is by stream after addition
Cheng Huifu is to corresponding state；Serial number 6 corresponding " alloy process " becomes green after the vacuum valve of alloy vacuum bucket is opened, when
Serial number 6 corresponding " alloy addition " becomes green after the lower cup valve of alloy vacuum bucket is opened, and serial number 6 is corresponding after addition
" alloy terminates " becomes green, and so far charger sheet executes completion.Since the 5th dispensing serial number does not input ingredient information, do not hold
The row serial number.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
Be with the present invention it is same or analogous design all belong to the scope of protection of the present invention within.
Claims (9)
1. a kind of RH charging systems, which is characterized in that including vacuum tank, several feeding unit materials being connect with vacuum tank, and
The control system to feed to vacuum tank for controlling feeding unit material；Each feeding unit material includes scale hooper, alloy vacuum
Bucket, vacuum feeder and several feed bins, several described feed bins are connect with the feed inlet of scale hooper, and each feed bin and title
One oscillating feeder is set between batch box, and the discharge port of the scale hooper is connected by the feed inlet of discharge valve and alloy vacuum bucket
It connects, the discharge port of the alloy vacuum bucket is connect by vacuum feeder and tremie pipe with the vacuum tank.
2. RH charging systems as described in claim 1, which is characterized in that the control system includes for setting feeding unit material
The dispensing input module of dispensing parameter, the Predicated execution module for judging feeding unit material execution program, and for showing
The display module of each working condition of material unit.
3. the charging process of RH charging systems as described in claim 1, which is characterized in that include the following steps：
1) corresponding charger sheet is arranged to each feeding unit material, charging material kind quantity set needed for the steel grade according to planned production
Dispensing serial number expects that kind of a weight, material kind sequence set dispensing parameter to each dispensing serial number according to required charging；
2) control system executes charging process successively by dispensing numeric order, and control system controls feeding when executing each dispensing serial number
Unit executes the weighing sub-process that alloying ingredient is entered scale hooper by feed bin successively, by scale hooper discharging unloading to alloy vacuum bucket
Material for making clothes flow, and be added to the addition sub-process of vacuum tank by alloy vacuum bucket, and by judging the dispensing parameter of input, setting
Whether the fixed performance of situation and previous sub-process in batches meets the execution requirement of each corresponding sub-process, is executed if meeting
Corresponding sub-process executes next dispensing serial number if not meeting；
3) wait for that the addition sub-process of the last one dispensing serial number on charger sheet is finished, that is, complete the charger sheet it is corresponding on
The charging process of material unit；
4) after the charging process of all feeding unit materials to be done being connect with vacuum tank, that is, the charging of entire RH charging systems is completed
Process.
4. the charging process of RH charging systems as claimed in claim 3, which is characterized in that dispensing parameter packet in the step 2)
Include storehouse number and dispensing value；
Requirement is executed for each sub-process of first dispensing serial number：First judge whether the storehouse number of input is corresponding feeding unit material
Feed bin and dispensing value be more than zero, if input storehouse number be not corresponding feeding unit material feed bin or dispensing value be not more than zero, hold
Second dispensing serial number of row executes first and matches if the storehouse number of input is the feed bin of corresponding feeding unit material and dispensing value is more than zero
The weighing sub-process for expecting serial number, after weighing sub-process and being finished, if second dispensing serial number is set as not, executing in batches
Second dispensing serial number, if second dispensing serial number is set as in batches, executing the discharging sub-process of first dispensing serial number, unloading
After material for making clothes flow is finished, then the addition sub-process that second dispensing serial number is performed simultaneously first dispensing serial number is executed.
5. the charging process of RH charging systems as claimed in claim 4, which is characterized in that for removing first in the step 2)
Each sub-process of dispensing serial number executes requirement other than a dispensing serial number：First judge execute dispensing serial number input storehouse number whether be
The feed bin and dispensing value of corresponding feeding unit material are more than zero, if the storehouse number of input be not corresponding feeding unit material feed bin or dispensing value not
More than zero, then execute next dispensing serial number of the dispensing serial number, otherwise judge the second dispensing serial number to execute dispensing serial number whether there is or not
In batches, if be all not in batches if execute the weighing sub-process of the execution dispensing serial number, wait for batch of material in scale hooper in batches if having
Weighed and discharging after execute the weighing sub-process of the execution dispensing serial number；After weighing sub-process is finished, if this is held
Next dispensing serial number of row dispensing serial number is set as not then executing next dispensing serial number of the execution dispensing serial number in batches, if should
The next dispensing serial number for executing dispensing serial number is set as in batches, then judging the second dispensing serial number, whether there is or not divide to dispensing serial number is executed
Batch；If be all not in batches if execute the discharging sub-process of the execution dispensing serial number；Wait for that vacuum tank is added in upper batch of material if having in batches
After execute the discharging sub-process of the execution dispensing serial number；After discharging sub-process is finished, the execution dispensing serial number is executed
Next dispensing serial number be performed simultaneously the addition sub-process of the execution dispensing serial number.
6. the charging process of RH charging systems as claimed in claim 3, which is characterized in that the charger sheet includes for inputting
Corresponding batch alloy whether in batches, storehouse number, dispensing value pre-setting area, the setting regions for set the number that is delayed, for showing
Show the practical weighing region for having weighed weight, and each sub-process state for showing feeding unit material vacuum process
Region.
7. the charging process of RH charging systems as claimed in claim 3, which is characterized in that the specific mistake of the weighing sub-process
Journey：Discharge valve is first closed, starts the oscillating feeder connected on corresponding feed bin so that the alloying ingredient in feed bin enters weighing
Bucket waits for that real-time weight and the difference of initial weight are consistent with ingredients by weight is set in charger sheet in scale hooper, stop vibrating feed
Machine is completed to weigh sub-process.
8. the charging process of RH charging systems as claimed in claim 3, which is characterized in that the specific mistake of discharging sub-process
Journey：First judge that whether pressure is more than 90kPa in alloy vacuum bucket, opens the air valve of alloy vacuum bucket if being not more than 90kPa,
After pressure in alloy vacuum bucket is more than 90kPa, air valve is closed, opens the upper cup valve and discharge valve of alloy vacuum bucket, is started
It will be in the alloying ingredient discharging in scale hooper to alloy vacuum bucket；Delay 5s closes discharge valve after scale hooper weight is less than 5kg,
Complete discharging sub-process.
9. the charging process of RH charging systems as claimed in claim 3, which is characterized in that the specific mistake of the addition sub-process
Journey：Upper cup valve, lower cup valve, vacuum valve and the air valve on alloy vacuum bucket are first closed, is then opened true on alloy vacuum bucket
Empty valve, which reduces pressure in alloy vacuum bucket, makes its pressure be less than 35kPa, then closes vacuum valve successively, start vacuum feeder, beat
It opens the heat-insulated flap valve on vacuum tank, open lower cup valve so that alloying ingredient is added into vacuum tank in alloy vacuum bucket, waits setting
After fixed feed time arrives, the lower cup valve of alloy vacuum bucket is closed successively, stops vacuum feeder, closes heat-insulated flap valve, beats
Open air valve；After pressure in alloy vacuum bucket is more than 90kPa, the upper cup valve closed air valve successively, open alloy vacuum bucket,
It completes that sub-process is added.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110908300A (en) * | 2019-10-30 | 2020-03-24 | 张家港宏昌钢板有限公司 | Alloy metering accuracy control method |
| CN111410062A (en) * | 2019-12-28 | 2020-07-14 | 攀钢集团西昌钢钒有限公司 | Vacuum circulation degassing furnace and feeding device thereof |
| CN114586691A (en) * | 2022-02-28 | 2022-06-07 | 珠海一微半导体股份有限公司 | Feeding method of intelligent feeding robot, intelligent feeding robot and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201842858U (en) * | 2010-10-28 | 2011-05-25 | 重庆钢铁(集团)有限责任公司 | Multiple materials adding regulating device for RH (relative humidity) dry-type vacuum-pumping system |
| CN202913014U (en) * | 2012-10-23 | 2013-05-01 | 中冶南方工程技术有限公司 | RH vacuum charging device |
| CN203295547U (en) * | 2013-05-15 | 2013-11-20 | 中冶南方工程技术有限公司 | Novel RH alloy vacuum loading hopper |
| CN104789740A (en) * | 2015-04-24 | 2015-07-22 | 中国重型机械研究院股份公司 | Vacuum feeding system of RH refining device and control method of vacuum feeding system |
-
2018
- 2018-05-21 CN CN201810486895.2A patent/CN108588341B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201842858U (en) * | 2010-10-28 | 2011-05-25 | 重庆钢铁(集团)有限责任公司 | Multiple materials adding regulating device for RH (relative humidity) dry-type vacuum-pumping system |
| CN202913014U (en) * | 2012-10-23 | 2013-05-01 | 中冶南方工程技术有限公司 | RH vacuum charging device |
| CN203295547U (en) * | 2013-05-15 | 2013-11-20 | 中冶南方工程技术有限公司 | Novel RH alloy vacuum loading hopper |
| CN104789740A (en) * | 2015-04-24 | 2015-07-22 | 中国重型机械研究院股份公司 | Vacuum feeding system of RH refining device and control method of vacuum feeding system |
Non-Patent Citations (1)
| Title |
|---|
| 迟良 等: "RH精炼合金加料系统智能化控制技术", 《控制工程》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110908300A (en) * | 2019-10-30 | 2020-03-24 | 张家港宏昌钢板有限公司 | Alloy metering accuracy control method |
| CN111410062A (en) * | 2019-12-28 | 2020-07-14 | 攀钢集团西昌钢钒有限公司 | Vacuum circulation degassing furnace and feeding device thereof |
| CN114586691A (en) * | 2022-02-28 | 2022-06-07 | 珠海一微半导体股份有限公司 | Feeding method of intelligent feeding robot, intelligent feeding robot and system |
| CN114586691B (en) * | 2022-02-28 | 2023-07-07 | 珠海一微半导体股份有限公司 | Feeding method of intelligent feeding robot, intelligent feeding robot and system |
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| CN108588341B (en) | 2020-05-19 |
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