CN104713620B - Furnace refractory feeding control device and control method - Google Patents
Furnace refractory feeding control device and control method Download PDFInfo
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- CN104713620B CN104713620B CN201310691491.4A CN201310691491A CN104713620B CN 104713620 B CN104713620 B CN 104713620B CN 201310691491 A CN201310691491 A CN 201310691491A CN 104713620 B CN104713620 B CN 104713620B
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Abstract
The present invention provides a kind of furnace refractory feeding control device and control method.The present invention includes upper hopper, oscillating feeder and weighing bucket, it is characterized in that：The outer inclined-plane of described oscillating feeder is provided with the first purging device, the outer inclined-plane of described weighing bucket is provided with the second purging device, the first described purging device and the second purging device connect air compressor by purging pipeline respectively, and purge solenoid valve is provided with described purging pipeline.Slave unit structure and control method of the present invention are started with, blowing mechanism is set up by weighing of the functions of the equipments design improvement to raw material and interlocked with the state of the device such as discharging, weighing, by setting certain control parameter and logical rule control furnace charge to weigh process, furnace charge weighing precision is improved, so that it is guaranteed that technique productions cause to carry out.
Description
Technical field：
The present invention relates to a kind of furnace refractory feeding control device and control method.
Background technology：
In steel production enterprise, smelting process for production often requires that smelting raw material must strictly meet, including raw material
Classification, calculating, proportioning, dress people etc. are weighed, otherwise smelt the control that will be unable to carry out accurately temperature, composition.Particularly make
For an important content of advanced smelting process, weighing and the dress control such as people's precision and sequential to raw material propose strict want
Ask.Must be combined by corresponding equipment and good control method could realize that raw material control meets smelting process demand.
But conventional raw material load facility includes upper hopper and device for discharging, the weighing bucket of storage raw material corresponding with raw material type
And device for discharging etc., due to material state characteristic, device structure and control mode etc. there is it is many defects of, cause such as raw material
The problems such as weighing inaccurate, bonding, blocking, discharging.
The content of the invention：
The purpose of the present invention is to provide a kind of furnace refractory feeding control device and controlling party for above-mentioned problem
Method, slave unit structure and control method are started with, by weighing of the functions of the equipments design improvement to raw material set up blowing mechanism and with
The state of the devices such as discharging, weighing is interlocked, by setting certain control parameter and logical rule control furnace charge weighed
Journey, furnace charge weighing precision is improved, so that it is guaranteed that technique productions cause to carry out.
Above-mentioned purpose is realized by following technical scheme：
Furnace refractory feeding control device, including upper hopper, oscillating feeder and weighing bucket, described vibrating feed
The outer inclined-plane of machine is provided with the first purging device, and the outer inclined-plane of described weighing bucket is provided with the second purging device, and described first
Purging device and the second purging device connect air compressor by purging pipeline respectively, and purging electricity is provided with described purging pipeline
Magnet valve.
Described furnace refractory feeding control device, the purging angle vertical of the first described purging device is in described vibration
The outer inclined-plane of batcher.
Described furnace refractory feeding control device, the purging angle vertical of the second described purging device is in described weighing
The outer inclined-plane of hopper.
Described furnace refractory feeding control device, described weighing bucket bottom are provided with discharging push-pull valve.
The method that furnace refractory feed control is carried out using above-mentioned furnace refractory feeding control device, this method are included such as
Lower step：
（1）The zero correction of weighing bucket：Open the symmetrical measuring bin of the second purging device and carry out clearance job, be delayed 10s-
Open discharging push-pull valve after 20s to lay down the furnace charge by purging to be got off in weighing bucket, then weighing pressure head is demarcated；
（2）The weighing of furnace charge：After furnace charge setting value Ws is assigned, discharging push-pull valve and the second purging device are automatically opened up, it is right
Weighing bucket carries out purging and brought down stocks, and is delayed after 10s-20s dischargings, closes discharging push-pull valve and the second purging device, now weighs
Hopper Weight is designated as W2, and when Vibration on Start-up batcher, oscillating feeder is vibrated by high speed setting value V1, and furnace charge is from upper feed bin
Enter weighing bucket by oscillating feeder, when weighing bucket actual value Wa increases to the 60% of furnace charge setting value Ws, vibrate to
Material machine reduces speed now, the rate curve of oscillating feeder for V=（Wa-Ws60%）2+ V2, when weighing bucket actual value Wa continuation
It is increased up and is equal to（Ws-W3）When, oscillating feeder stops, and drop amount is that W3 furnace charge finally enters weighing bucket, Wa ripple
Then Wa is nearly equal to Ws during dynamic deviation W5 stable less than weighing bucket, during weighing, the table if Wa keeps stable
Show upper feed bin hole capital after selling all securities or oscillating feeder putty, now, automatically open up the first purging device to oscillating feeder carry out purging dredge
It is logical, carry out weighing, after purging dredging delay 20s, Wa still keeps stable, then produces fault alarm, carries out manual confirmation processing；
（3）After weighing terminates, start the discharging control of weighing bucket, automatically open up discharging push-pull valve, furnace charge draws off weighing
Hopper, then open the symmetrical measuring bin of the second purging device and carry out purging and bring down stocks, and be delayed after 20s, close discharging push-pull valve and the
Two purging devices, now weighing bucket actual value Wa be less than hole capital after selling all securities value W4, in hole capital after selling all securities state.
Beneficial effect：
Slave unit structure and control method of the present invention are started with, and are set up and blown by weighing of the functions of the equipments design improvement to raw material
Sweep mechanism and interlocked with the state of the device such as discharging, weighing, by setting certain control parameter and logical rule control
Furnace charge weighs process, furnace charge weighing precision is improved, so that it is guaranteed that technique productions cause to carry out.
Brief description of the drawings：
Fig. 1 is the structural representation of the present invention.
In figure：Upper hopper 1；Oscillating feeder 2；Weighing bucket 3；First purging device 4；Second purging device 5；Purge pipeline
6；Air compressor 7；Purge solenoid valve 8；Discharging push-pull valve 9.
Embodiment：
The present invention is further described below in conjunction with the accompanying drawings.
As shown in Figure 1：The furnace refractory feeding control device of the present invention, including upper hopper 1, oscillating feeder 2 and title
Measuring bin 3, the outer inclined-plane of described oscillating feeder are provided with the first purging device 4, the outer inclined-plane installation of described weighing bucket
There is the second purging device 5, the first described purging device and the second purging device connect air compressor 7, institute by purging pipeline 6 respectively
Purge solenoid valve 8 is provided with the purging pipeline stated.
Described furnace refractory feeding control device, the purging angle vertical of the first described purging device is in described vibration
The outer inclined-plane of batcher.
Described furnace refractory feeding control device, the purging angle vertical of the second described purging device is in described weighing
The outer inclined-plane of hopper.
Described furnace refractory feeding control device, described weighing bucket bottom are provided with discharging push-pull valve 9.
Control method：
1) zero correction of weighing bucket
In order to improve weighing precision, it is necessary to which periodically weighing pressure head carries out zero correction.With the long-term use of equipment, by
In the reason for the equipment（Bulkhead buildup, accumulated error of sensor etc.）The zero point of weighing bucket will be caused can shift, this
Sample has an impact to the weighing precision of furnace charge, and control sequential.In order to eliminate zero deviation in time, the weight of weighing pressure head is needed
Measure signal and carry out necessary correcting process.
Before correction, open the symmetrical measuring bin of the second purging device and carry out clearance job, discharging plate is opened after the 10s-20s that is delayed
Valve lays down the furnace charge to be got off in weighing bucket by purging, and then weighing pressure head is demarcated；Then weighing pressure head is carried out
Demarcation, avoids the influence of charging binding weighing.
2) the control parameter definition weighed
Control parameter is defined as follows, as furnace charge weighing and precision controlling strategy.
Furnace charge setting value Ws：The charging weight that the needs calculated according to production technology load,
Weighing bucket weight W2 before the furnace charge actual value Wa of weighing bucket=current weighing bucket weight W1-weighing
Weighing bucket weight W2 before weighing：The weighing bucket actual weight before oscillating feeder 2 starts is fed,
Current weighing bucket weight W1：Weigh the weighing bucket actual weight after starting.
Drop amount W3
How accurately to be controlled due to the influence of material characteristic, the mechanical property of equipment and environmental factor, during material weighing
The lead of stop machine directly influences the weighing precision of material.It is to the once effective of the error to set the correction of drop amount to calculate
Correct.Previous drop amount is using as the actual parameter of a rear Weighting and Controlling.
The hole capital after selling all securities value W4 of weighing bucket
When weighing bucket actual weight Wa is less than hole capital after selling all securities value W4, and the 20s that is delayed thinks that weighing bucket is hole capital after selling all securities state.
The stable deviation W5 of weighing bucket
When weighing bucket actual weight Wa fluctuation is less than W5, and the 20s that is delayed thinks that weighing bucket is in stable state,
Wa is accurately reliable.When feeding the work of oscillating feeder 2, the Wa of weighing bucket keeps stable and then represents that upper feed bin is empty
Storehouse or the charging putty of oscillating feeder 2, in this, as the important evidence of stream detection.
Feed the rate curve V of oscillating feeder 2
Charging oscillating feeder control 2 is compared according to furnace charge setting value Ws and actual value Wa carries out the line traffic control of writing music that just hastens
System so as to improve weighing precision.Rate curve include high speed setting value V1, speed-change area V1-2=（Wa-Ws60%）2+ V2, stop
Value V2.
The weighing of furnace charge
Discharging push-pull valve is closed, and weighing bucket is hole capital after selling all securities state, feeds oscillating feeder halted state.
After furnace charge setting value Ws is assigned, discharging push-pull valve and the second purging device are automatically opened up, symmetrical measuring bin is blown
Storehouse is cleared away, and is delayed after 10s-20s dischargings, closes discharging push-pull valve and the second purging device, now weighing bucket weight is designated as W2,
When Vibration on Start-up batcher, oscillating feeder is vibrated by high speed setting value V1, and furnace charge passes through oscillating feeder from upper feed bin
Into weighing bucket, when weighing bucket actual value Wa increases to the 60% of furnace charge setting value Ws, oscillating feeder reduces speed now,
The rate curve of oscillating feeder be V=（Wa-Ws60%）2+ V2, continuing to be increased up and be equal to as weighing bucket actual value Wa
（Ws-W3）When, oscillating feeder stops, and the furnace charge that drop amount is W3 finally enters weighing bucket, and Wa fluctuation, which is less than to weigh, expects
Then Wa is nearly equal to Ws during bucket stabilization deviation W5, during weighing, judges the Wa of weighing bucket change all the time, if
Wa keeps stable and then represents upper feed bin hole capital after selling all securities or oscillating feeder putty, now, automatically open up the first purging device to vibration to
Material machine carries out purging dredging, carries out weighing, and after purging dredging delay 20s, Wa still keeps stable, then produces fault alarm, enter
The processing of row manual confirmation；
（3）After weighing terminates, start the discharging control of weighing bucket, automatically open up discharging push-pull valve, furnace charge draws off weighing
Hopper, then open the symmetrical measuring bin of the second purging device and carry out purging and bring down stocks, and be delayed after 20s, close discharging push-pull valve and the
Two purging devices, now weighing bucket actual value Wa be less than hole capital after selling all securities value W4, in hole capital after selling all securities state.
Claims (1)
1. a kind of method of furnace refractory feed control, using furnace refractory feeding control device, including upper hopper, vibrate to
Material machine and weighing bucket, the outer inclined-plane of described oscillating feeder are provided with the first purging device, described weighing bucket it is interior tiltedly
Face is provided with the second purging device, and the first described purging device and the second purging device connect air compression by purging pipeline respectively
Machine, purge solenoid valve is provided with described purging pipeline, the purging angle vertical of the first described purging device shakes in described
The outer inclined-plane of dynamic batcher, the purging angle vertical of the second described purging device are described in the outer inclined-plane of described weighing bucket
Weighing bucket bottom be provided with discharging push-pull valve, it is characterised in that：This method comprises the following steps：
（1）The zero correction of weighing bucket：Open the symmetrical measuring bin of the second purging device and carry out clearance job, be delayed after 10s-20s
Open discharging push-pull valve to lay down the furnace charge by purging to be got off in weighing bucket, then weighing pressure head is demarcated；
（2）The weighing of furnace charge：After furnace charge setting value Ws is assigned, discharging push-pull valve and the second purging device, weighing are automatically opened up
Hopper carries out purging and brought down stocks, and is delayed after 10s-20s dischargings, closes discharging push-pull valve and the second purging device, now weighing bucket
Weight is designated as W2, and when Vibration on Start-up batcher, oscillating feeder is vibrated by high speed setting value V1, and furnace charge passes through from upper feed bin
Oscillating feeder enters weighing bucket, when weighing bucket actual value Wa increases to the 60% of furnace charge setting value Ws, oscillating feeder
Reduce speed now, the rate curve of oscillating feeder for V=（Wa-Ws60%）2+ V2, rate curve include high speed setting value V1, speed change
Area V1-2=（Wa-Ws60%）2+ V2, stop value V2；It is equal to when weighing bucket actual value Wa continues to be increased up（Ws-W3）When, shake
Dynamic batcher stops, and the furnace charge that drop amount is W3 finally enters weighing bucket, and Wa fluctuation is less than the stable deviation of weighing bucket
Then Wa is nearly equal to Ws during W5, and during weighing, upper feed bin hole capital after selling all securities or vibrating feed are represented if Wa keeps stable
Machine putty, now, automatically open up the first purging device and purging dredging is carried out to oscillating feeder, carry out weighing, purging dredging is prolonged
When 20s after, Wa still keeps stable, then produces fault alarm, carries out manual confirmation processing；
（3）After weighing terminates, starting the discharging control of weighing bucket, automatically open up discharging push-pull valve, furnace charge draws off weighing bucket,
Then open the symmetrical measuring bin of the second purging device and carry out purging and bring down stocks, and be delayed after 20s, close discharging push-pull valve and the second purging
Device, now weighing bucket actual value Wa be less than hole capital after selling all securities value W4, in hole capital after selling all securities state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310691491.4A CN104713620B (en) | 2013-12-17 | 2013-12-17 | Furnace refractory feeding control device and control method |
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| CN201310691491.4A CN104713620B (en) | 2013-12-17 | 2013-12-17 | Furnace refractory feeding control device and control method |
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| CN104713620B true CN104713620B (en) | 2017-12-19 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107797513A (en) * | 2016-08-31 | 2018-03-13 | 上海梅山钢铁股份有限公司 | The control method of weight reduction magazine discharging |
| CN108106700A (en) * | 2017-12-07 | 2018-06-01 | 山信软件股份有限公司 | A kind of control method and system of scale hooper blowing |
| CN109959436B (en) * | 2017-12-14 | 2021-12-24 | 湖南中联重科混凝土机械站类设备有限公司 | Material weighing control method and device and material weighing system |
| CN109060469A (en) * | 2018-06-26 | 2018-12-21 | 力鸿智信（北京）科技有限公司 | A kind of promotion sample injection method and promote sampling device |
| CN110908300A (en) * | 2019-10-30 | 2020-03-24 | 张家港宏昌钢板有限公司 | Alloy metering accuracy control method |
| CN114739496B (en) * | 2022-03-30 | 2024-02-13 | 鞍钢股份有限公司 | Method for rapidly weighing alloy by RH refining furnace |
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| CN101135586A (en) * | 2006-08-31 | 2008-03-05 | 上海梅山钢铁股份有限公司 | Measurement control method of hopper scale used for feeding revolving furnace |
| CN202115911U (en) * | 2010-11-25 | 2012-01-18 | 软控股份有限公司 | Hopper scale |
| CN102853885A (en) * | 2012-10-17 | 2013-01-02 | 徐工集团工程机械股份有限公司 | Material metering device |
| CN103438966A (en) * | 2013-08-20 | 2013-12-11 | 昆山利特自动化设备有限公司 | Automatic totalizing batch scale |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7191919B2 (en) * | 2004-09-01 | 2007-03-20 | Acrison, Inc. | Weight-loss weigh feeder with pressure compensation |
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Patent Citations (4)
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|---|---|---|---|---|
| CN101135586A (en) * | 2006-08-31 | 2008-03-05 | 上海梅山钢铁股份有限公司 | Measurement control method of hopper scale used for feeding revolving furnace |
| CN202115911U (en) * | 2010-11-25 | 2012-01-18 | 软控股份有限公司 | Hopper scale |
| CN102853885A (en) * | 2012-10-17 | 2013-01-02 | 徐工集团工程机械股份有限公司 | Material metering device |
| CN103438966A (en) * | 2013-08-20 | 2013-12-11 | 昆山利特自动化设备有限公司 | Automatic totalizing batch scale |
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