CN108153232A - A kind of automatic control system and control method to converter high hopper feeding - Google Patents
A kind of automatic control system and control method to converter high hopper feeding Download PDFInfo
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- CN108153232A CN108153232A CN201611105718.2A CN201611105718A CN108153232A CN 108153232 A CN108153232 A CN 108153232A CN 201611105718 A CN201611105718 A CN 201611105718A CN 108153232 A CN108153232 A CN 108153232A
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- feed bin
- high hopper
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/188—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by special applications and not provided for in the relevant subclasses, (e.g. making dies, filament winding)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
Abstract
The present invention relates to a kind of automatic control systems to converter high hopper feeding, which is characterized in that the control system includes comprehensive control module；Feeding clock control module, high hopper feeding amount computing module, feeding Priority Determination module, material heap density revision module, feeding cart control module, underground stock ground vibrating feed control module, the real time measure module of upper doses, feeding process comprehensive control module, the comprehensive control module connects feeding clock control module respectively, high hopper feeding amount computing module, feeding Priority Determination module, material heap density revision module and feeding process comprehensive control module, the feeding process comprehensive control module connects feeding cart control module simultaneously, underground stock ground vibrating feed control module, the real time measure module of upper doses.
Description
Technical field
The present invention relates to a kind of control system and methods, and in particular to a kind of automatically controlling to converter high hopper feeding
Method belongs to technical field of automatic control.
Background technology
In convertor steelmaking process, need to add in auxiliary materials and the alloy raw materials such as lime, all auxiliary materials and alloy are all by underground
Stock ground is by belt-conveying and is added to high hopper.Underground stock ground feeds to high hopper, mainly passes through an artificial judgment high position
Feed bin situation carries out feeding again, be easy to cause wrong material, not in time situations such as occur, influence the production of converter, while also need
A large amount of manual operation is wanted, economic effect is poor, and working strength is high, and there are certain error, the skills of this field for control accuracy
Art personnel have attempted to new scheme, but the problem is never properly settled.
Invention content
The present invention be exactly for the technical problems in the prior art, provide it is a kind of to converter high hopper feeding from
Flowing control method, this method monitor the material situation of high hopper in real time, realize feeding by being automatically controlled to feeding system
Automation mechanized operation, greatly reduce manipulation strength, control accuracy greatly improves.
To achieve these goals, technical scheme is as follows, a kind of automatic control to converter high hopper feeding
System processed, which is characterized in that the control system includes comprehensive control module；Feeding clock control module, high hopper feeding
Amount computing module, feeding Priority Determination module, material heap density revision module, feeding cart control module, underground stock ground shake
Dynamic feed control module, the real time measure module of upper doses, feeding process comprehensive control module, the comprehensive control module difference
Connect feeding clock control module, high hopper feeding amount computing module, feeding Priority Determination module, material heap density revision
Module and feeding process comprehensive control module, the feeding process comprehensive control module connect feeding cart control mould simultaneously
Block, underground stock ground vibrating feed control module, the real time measure module of upper doses；
The comprehensive control module：For coordinating control between each control module；The feeding clock control module：
For the cycle period of the timing of feeding clock, i.e. period feeding；The high hopper feeding amount computing module：For calculating
Each high hopper needs the amount of feeding；The feeding Priority Determination module：For determining the feeding priority of high hopper,
That is the sequencing of high hopper feeding；The material heap density revision module：For correcting the heap density of material；Described
Feeding cart control module：For the control of the movement of feeding cart；The underground stock ground vibrating feed control module：For
The control of oscillating feeder that stock ground feeds is descended over the ground；The real time measure module of the upper doses：It is right in feeding process
The real time measure of upper doses；The feeding process comprehensive control module：For the Comprehensive Control of each feed bin feeding process.
A kind of autocontrol method to converter high hopper feeding, which is characterized in that the control method includes following
Step, 1）Feeding clock control module carries out feeding timing, when timing time is the integral multiple of feeding time interval Δ T, on
Expect that clock control module notifies comprehensive control module through network system, the new feeding period starts；Otherwise, continue this step, after
Continuous timing；
2）Comprehensive control module receives the signal that the new feeding period of feeding clock control module starts, and notifies on high hopper
Doses computing module calculates doses on each feed bin；
21）Determine to need the feed bin of feeding；
Each high hopper sets a feeding material position, when current material position is less than feeding material position, in addition to the feed bin of limitation feeding,
Then the feed bin needs to carry out feeding, to reduce the number of feeding, improves efficiency.
22）Feeding of limiting the quantity calculates feeding quantity；
It overhauled after several heats are smelted, change situations such as material variety, need to empty after corresponding heat has been smelted
In the case of feed bin, doses Wm on this is calculated（It is assumed that m-th of feed bin needs charging of limiting the quantity）.
According to the production schedule of kiln process control system, after this feeding, the stove of production is also needed by steel grade part
Number K and every stove production need the average consumption WK of the feed bin material, then
Wm=∑K*WK-W0
Wherein, W0 is the original inventory of feed bin.
High hopper as shown in Figure 1, all sizes it is known that in the case where knowing controlling level h, it is easy to calculate object
Expect upper bottom surface product S, then：
It is assumed herein that h is less than h1, wherein ρ is the heap density of the feed bin material, the weighted average of q feeding before taking.
ρ=（ρ1+2*ρ2+3*ρ3+…+q*ρq）/（1+2+3+…+q）；
23）Non- limitation feeding calculates feeding quantity
It does not need in the case of emptying feed bin after several heats, feeding measures until feed bin is filled it up with according to level-sensing device
Material position calculates inventory W1, W2 ... the Wn for needing to add in（Assuming that share n high hopper）.
The volume of each feed bin is fixed, if its volume is V（It is assumed that calculate the upper doses of k-th of feed bin）；
When controlling level h is more than h1
The upper * of Wk=S（h2-h）*ρ
When controlling level h is less than or equal to h1
Wk=V-W0
Wherein, W0 is the original inventory of feed bin.
。
3）High hopper feeding amount computing module is calculated on each feed bin after doses, and notice comprehensive control module carries out true
The priority for determining feeding starts；
4）After comprehensive control module receives the priority commencing signal of determining feeding, notice feeding Priority Determination module determines
Expect priority；
So-called feed bin priority refers to the sequencing of each feed bin feeding.Determine that priority approach there are 2：
Method 1：It is divided by the situation of feed bin distribution, it is general using from left to right（Or from right to left）Sequence divide, advantage is
The mobile number and displacement distance of the feeding cart in feeding process can be reduced, improves the efficiency of feeding；
Method 2：Upper doses divides as needed, and the feed bin priority more than feeding is high, and feeding lack that feed bin priority is low, and advantage is suddenly
The preferential feeding of feed bin of feeding is needed, it is few and influence the generation of production accident to avoid or reduce material in feed bin.
Picture is selected by priority on the HMI pictures to system, corresponding priority is selected to determine method, is come with this true
The priority of the feeding of fixed each high hopper.
5）Feeding process comprehensive control module carries out feeding process control according to the priority of each feed bin；Feeding process knot
Shu Hou carries out the amendment of material heap density through comprehensive control module notice material heap density revision module；
51）According to priority ranking, the feed bin of highest priority is selected；
52）Feeding cart control module control feeding cart moves on to the charge door of corresponding feed bin；
53）The oscillating feeder in the stock ground of underground stock ground vibrating feed control module control underground stock ground corresponding material starts to vibrate
Feeding；
54）Upper doses in the real time measure module real time measure feeding process of upper doses, when the upper doses of calculating is more than or equal to
The Wi that step 2 calculates, oscillating feeder stop vibration charging；
Wi0=Δt*SP
Wherein, Δ t starts for oscillating feeder vibrating feed to current time interval, and SP is oscillating feeder vibrating feed
Speed.
55）Be delayed Δ T2（Ensure that the material on charging belt has been added in corresponding high hopper）, judge all need
The whether whole feedings of high hopper of feeding is wanted to finish, if no feeding finishes, go to step 2）.
ΔT2=k1*Lbelt/Vbelt
Wherein, Lbelt is Belt Length；
Vbelt is belt speed；
K1 is constant, and between general value 1.0-1.2, the material for ensuring on belt can all add in corresponding high-order material
In storehouse.
6）Material heap density revision module carries out heap density revision；Go to step 1.
According to the position of level-sensing device before and after last time feeding, the volume of last time charging is calculated, further according to feeding twice it
Between material add in converter material amount（Utilize the data recorded in kiln process control system database）, calculate the heap of material
Density.Be delayed Δ T, goes to step 1.
Heap density calculation formula is as follows：
ρ=∑Wj/（V1-V2）；
Wherein, the amount of Wj all this feed bin materials for adding in converter smelting since being last time feeding, after V1 is last time feeding
The volume of material, V2 are the volume of surplus material before this feeding.
If replace material variety feed bin, it is q times first since heap density be set as initial value ρ 0.
Relative to the prior art, the invention has the advantages that, the configuration of the present invention is simple is easy to use, in this way,
High hopper feeding automatically controls, and greatly reduces manipulation strength, improves working efficiency and control accuracy, and realizing will original tradition
Equipment control to digital control transformation is modernized, convenient for promoting and applying on a large scale.
Description of the drawings
Fig. 1 high hopper structure charts, high hopper top are square, and lower part is regular centrum.
Fig. 2 feeding system schematic diagrames
Each control module logic chart of Fig. 3 feeding systems
Wherein, 1：Charging belt；2：The feed bin in underground stock ground；3：Oscillating feeder；4：Feeding cart；5：High hopper.
Specific embodiment
In order to deepen the understanding of the present invention, the present embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：Referring to Fig. 3, a kind of automatic control system to converter high hopper feeding, the control system includes
Comprehensive control module；Feeding clock control module, high hopper feeding amount computing module, feeding Priority Determination module, material
Heap density revision module, feeding cart control module, underground stock ground vibrating feed control module, upper doses real time measure mould
Block, feeding process comprehensive control module, the comprehensive control module connect feeding clock control module, high hopper feeding respectively
Computing module, feeding Priority Determination module, material heap density revision module and feeding process comprehensive control module are measured, it is described
Feeding process comprehensive control module connects feeding cart control module, underground stock ground vibrating feed control module, upper doses simultaneously
Real time measure module；The comprehensive control module：For coordinating control between each control module；During described feeding
Clock control module：For the cycle period of the timing of feeding clock, i.e. period feeding；The high hopper feeding amount calculates mould
Block：The amount of feeding is needed for calculating each high hopper；The feeding Priority Determination module：For determining high hopper
The sequencing of feeding priority, i.e. high hopper feeding；The material heap density revision module：For correcting the heap of material
Density；The feeding cart control module：For the control of the movement of feeding cart；The underground stock ground vibrating feed control
Molding block：For the control of oscillating feeder that stock ground is descended to feed over the ground；The real time measure module of the upper doses：For
During material, to the real time measure of upper doses；The feeding process comprehensive control module：For the comprehensive of each feed bin feeding process
Close control.
Embodiment 2：Referring to Fig. 3, a kind of autocontrol method to converter high hopper feeding, the control method includes
Following steps, 1）Feeding clock control module carries out feeding timing, when timing time is the integral multiple of feeding time interval Δ T
When, feeding clock control module notifies comprehensive control module through network system, and the new feeding period starts；Otherwise, continue this step
Suddenly, continue timing；
2）Comprehensive control module receives the signal that the new feeding period of feeding clock control module starts, and notifies on high hopper
Doses computing module calculates doses on each feed bin；
21）Determine to need the feed bin of feeding；
Each high hopper sets a feeding material position, when current material position is less than feeding material position, in addition to the feed bin of limitation feeding,
Then the feed bin needs to carry out feeding, to reduce the number of feeding, improves efficiency.
22）Feeding of limiting the quantity calculates feeding quantity；
It overhauled after several heats are smelted, change situations such as material variety, need to empty after corresponding heat has been smelted
In the case of feed bin, doses Wm on this is calculated（It is assumed that m-th of feed bin needs charging of limiting the quantity）.
According to the production schedule of kiln process control system, after this feeding, the stove of production is also needed by steel grade part
Number K and every stove production need the average consumption WK of the feed bin material, then
Wm=∑K*WK-W0
Wherein, W0 is the original inventory of feed bin.
High hopper as shown in Figure 1, all sizes it is known that in the case where knowing controlling level h, it is easy to calculate object
Expect upper bottom surface product S, then：
It is assumed herein that h is less than h1, wherein ρ is the heap density of the feed bin material, the weighted average of q feeding before taking.
ρ=（ρ1+2*ρ2+3*ρ3+…+q*ρq）/（1+2+3+…+q）；
23）Non- limitation feeding calculates feeding quantity
It does not need in the case of emptying feed bin after several heats, feeding measures until feed bin is filled it up with according to level-sensing device
Material position calculates inventory W1, W2 ... the Wn for needing to add in（Assuming that share n high hopper）.
The volume of each feed bin is fixed, if its volume is V（It is assumed that calculate the upper doses of k-th of feed bin）；
When controlling level h is more than h1
The upper * of Wk=S（h2-h）*ρ
When controlling level h is less than or equal to h1
Wk=V-W0
Wherein, W0 is the original inventory of feed bin.
。
3）High hopper feeding amount computing module is calculated on each feed bin after doses, and notice comprehensive control module carries out true
The priority for determining feeding starts；
4）After comprehensive control module receives the priority commencing signal of determining feeding, notice feeding Priority Determination module determines
Expect priority；
So-called feed bin priority refers to the sequencing of each feed bin feeding.Determine that priority approach there are 2：
Method 1：It is divided by the situation of feed bin distribution, it is general using from left to right（Or from right to left）Sequence divide, advantage is
The mobile number and displacement distance of the feeding cart in feeding process can be reduced, improves the efficiency of feeding；
Method 2：Upper doses divides as needed, and the feed bin priority more than feeding is high, and feeding lack that feed bin priority is low, and advantage is suddenly
The preferential feeding of feed bin of feeding is needed, it is few and influence the generation of production accident to avoid or reduce material in feed bin.
Picture is selected by priority on the HMI pictures to system, corresponding priority is selected to determine method, is come with this true
The priority of the feeding of fixed each high hopper.
5）Feeding process comprehensive control module carries out feeding process control according to the priority of each feed bin；Feeding process knot
Shu Hou carries out the amendment of material heap density through comprehensive control module notice material heap density revision module；
51）According to priority ranking, the feed bin of highest priority is selected；
52）Feeding cart control module control feeding cart moves on to the charge door of corresponding feed bin；
53）The oscillating feeder in the stock ground of underground stock ground vibrating feed control module control underground stock ground corresponding material starts to vibrate
Feeding；
54）Upper doses in the real time measure module real time measure feeding process of upper doses, when the upper doses of calculating is more than or equal to
The Wi that step 2 calculates, oscillating feeder stop vibration charging；
Wi0=Δt*SP
Wherein, Δ t starts for oscillating feeder vibrating feed to current time interval, and SP is oscillating feeder vibrating feed
Speed.
55）Be delayed Δ T2（Ensure that the material on charging belt has been added in corresponding high hopper）, judge all need
The whether whole feedings of high hopper of feeding is wanted to finish, if no feeding finishes, go to step 2）.
ΔT2=k1*Lbelt/Vbelt
Wherein, Lbelt is Belt Length；
Vbelt is belt speed；
K1 is constant, and between general value 1.0-1.2, the material for ensuring on belt can all add in corresponding high-order material
In storehouse.
6）Material heap density revision module carries out heap density revision；Go to step 1.
According to the position of level-sensing device before and after last time feeding, the volume of last time charging is calculated, further according to feeding twice it
Between material add in converter material amount（Utilize the data recorded in kiln process control system database）, calculate the heap of material
Density.Be delayed Δ T, goes to step 1.
Heap density calculation formula is as follows：
ρ=∑Wj/（V1-V2）；
Wherein, the amount of Wj all this feed bin materials for adding in converter smelting since being last time feeding, after V1 is last time feeding
The volume of material, V2 are the volume of surplus material before this feeding.
If replace material variety feed bin, it is q times first since heap density be set as initial value ρ 0.
Application Example 1：
A kind of autocontrol method to converter high hopper feeding, Mei Gang steelwork converters subsidiary factory, to converter high hopper reality
Apply automatic charging operation（The 6# storehouses feed opening oscillating feeder same day 15:30 arrange maintenance, need hole capital after selling all securities）：
1）Feeding clock control module carries out feeding timing, works as timing time（1800 seconds）It is the whole of feeding time interval 1800 seconds
During several times, feeding clock control module notifies comprehensive control module through network system, and the new feeding period starts；
2）Comprehensive control module receives the signal that the new feeding period of feeding clock control module starts, and notifies on high hopper
Doses computing module calculates doses on each feed bin；
21）Determine to need the feed bin of feeding；
Each high hopper sets a feeding material position, when current material position is less than feeding material position, in addition to the feed bin of limitation feeding,
Then the feed bin needs to carry out feeding, to reduce the number of feeding, improves efficiency.
The feeding material position of each feed bin and the material position of current feed bin such as table one：
| Feed bin number | 1# storehouses | 2# storehouses | 3# storehouses | 4# storehouses | 5# storehouses | 6# storehouses | …… | 24# storehouses | 25# storehouses | 26# storehouses | 27# storehouses | 28# storehouses |
| Feeding material position (rice) | 0.78 | 1.15 | 1.15 | 0.88 | 2.32 | 1.85 | …… | 0.75 | 1.21 | 2.91 | 3.21 | 3.0 |
| Current material position (rice) | 0.53 | 1.68 | 1.05 | 1.33 | 2.5 | 1.08 | …… | 0.88 | 1.54 | 2.75 | 3.31 | 3.89 |
The feeding material position of one feed bin of table and the material position table of current feed bin
The feed bin for needing feeding is 1# feed bins, 3# feed bins, 6# feed bins, 26# feed bins.
22）Feeding of limiting the quantity calculates feeding quantity；
According to the actual conditions of production, the feed bin for feeding of limiting the quantity is 6# feed bins, and material is light dolomite.According to kiln process control
The production schedule of system processed, after this feeding, by steel grade：4 stove of DP3451K1 steel grades, it is average per 3.45 tons of stove,
3 stove of IU5820A1 steel grades, it is average per 2.63 tons of stove, then
Wm=∑K*WK-W0
=（4*3.45+3*2.63）-7.56
=14.13 (tons)
Wherein, W0（7.56 ton）For the original light dolomite quantity in stock of feed bin.
23）Wherein non-limitation feeding calculates feeding quantity；
According to the actual conditions of production, the feed bin of non-limitation feeding includes 1# feed bins, 3# feed bins, 26# feed bins.1# material are calculated
Storehouse, 3# feed bins, 26# feed bins upper doses be respectively 20.55 tons, 25.64 tons and 36.3 tons.
3）High hopper feeding amount computing module is calculated on each feed bin after doses, and notice comprehensive control module carries out true
The priority for determining feeding starts；
4）After comprehensive control module receives the priority commencing signal of determining feeding, notice feeding Priority Determination module determines
Expect priority；
The sequencing of each feed bin feeding, determines that priority approach is as follows：
Upper doses divides as needed, and the feed bin priority more than feeding is high, and feeding lack that feed bin priority is low, and advantage is urgent need feeding
The preferential feeding of feed bin, it is few and influence the generation of production accident to avoid or reduce material in feed bin.
Picture is selected by priority on the HMI pictures to system, corresponding priority is selected to determine method, determines each height
The priority of the feeding of position feed bin.According to HMI pictures, priority determines that the sequence by upper doses determines at present.
5）Feeding process comprehensive control module carries out feeding process control according to the priority of each feed bin；Feeding process knot
Shu Hou carries out the amendment of material heap density through comprehensive control module notice material heap density revision module；
51）According to priority ranking, the feed bin of highest priority is selected；
Feeding priority is 26# feed bins, 3# feed bins, 1# feed bins, 6# feed bin feed bins.
52）Feeding cart control module control feeding cart moves on to the charge door of corresponding 26# feed bins；
53）4 feed bins in underground stock ground vibrating feed control module control underground stock ground（4 feed bins and high hopper in underground stock ground
26# feed bin materials it is identical）Oscillating feeder start vibration feeding；
54）Upper doses in the real time measure module real time measure feeding process of upper doses, when calculating upper doses Wi0 be more than etc.
36.3 tons calculated in step 2, oscillating feeder stop vibration charging；
Wi0=Δt*SP
Wherein, Δ t starts for oscillating feeder vibrating feed to current time interval, SP（125 ton hours）For vibrating feed
The speed of machine vibration feed.
55）Be delayed Δ T2（Ensure that the material on charging belt has been added in corresponding high hopper）, judge all need
The whether whole feedings of high hopper of feeding is wanted to finish, if no feeding finishes, go to step 2）Feeding is continued cycling through, until 3#
Feed bin, 1# feed bins, 6# feed bins feed bin all feedings finish.
The value of Δ T2 when calculating high hopper 4# storehouse feedings：
ΔT2=k1*Lbelt/Vbelt
=1.1*351/120
=3.21 (minutes)
6）Material heap density revision module carries out heap density revision；Go to step 1.
According to the position of level-sensing device before and after last time feeding, the volume of last time charging is calculated, further according to feeding twice it
Between material add in converter material amount（Utilize the data recorded in kiln process control system database）, calculate the heap of material
Density.
Heap density calculation formula is as follows（This is sentenced for 26# feed bins）：
ρ=∑Wj/（V1-V2）
=（2.88+3.12+2.95+3.08+2.93+2.81+3.22+2.87+3.11+2.97+3.15+3.21）/（39.99-9.32）
=1.185 (tons/cubic meter)
By the corresponding 6 heap density of 26# feed bins into line replacement：
ρ0=ρ1；
ρ1=ρ3；
ρ3=ρ4；
ρ4=ρ5；
ρ5=ρ6；
Ρ6=ρ。
Application Example 2：
A kind of autocontrol method to converter high hopper feeding, plum steel steel mill converter subsidiary factory provide according to the present invention
Method to converter high hopper implement feeding operation（The same day is without the hole capital after selling all securities requirement for overhauling and changing the reasons such as material）：
1）Feeding clock control module carries out feeding timing, works as timing time（1800 seconds）It is the whole of feeding time interval 1800 seconds
During several times, feeding clock control module notifies comprehensive control module through network system, and the new feeding period starts；
2）Comprehensive control module receives the signal that the new feeding period of feeding clock control module starts, and notifies on high hopper
Doses computing module calculates doses on each feed bin；
21）Determine to need the feed bin of feeding
Each high hopper sets a feeding material position, when current material position is less than feeding material position, in addition to the feed bin of limitation feeding,
Then the feed bin needs to carry out feeding, to reduce the number of feeding, improves efficiency.
The feeding material position of each feed bin and the material position of current feed bin such as table one：
| Feed bin number | 1# storehouses | 2# storehouses | 3# storehouses | 4# storehouses | 5# storehouses | 6# storehouses | …… | 24# storehouses | 25# storehouses | 26# storehouses | 27# storehouses | N# storehouses |
| Feeding material position (rice) | 0.78 | 1.15 | 1.15 | 0.88 | 2.32 | 1.85 | …… | 0.75 | 1.21 | 2.91 | 3.21 | 3.0 |
| Current material position (rice) | 2.53 | 1.08 | 1.12 | 1.33 | 1.5 | 3.08 | …… | 1.58 | 1.14 | 2.55 | 4.01 | 4.89 |
The feeding material position of one feed bin of table and the material position table of current feed bin
The feed bin for needing feeding is 2# feed bins, 3# feed bins, 5# feed bins, 25# feed bins, 26# feed bins.
22）Non- limitation feeding calculates feeding quantity
Hole capital after selling all securities requirement due to the same day is without overhauling and changing material etc., so the feed bin of this non-limitation feeding is expected including 2#
Storehouse, 3# feed bins, 5# feed bins, 25# feed bins, 26# feed bins.2# feed bins, 3# feed bins, 5# feed bins, 25# feed bins, 26# feed bins is calculated
Upper doses be respectively 22.85 tons, 24.6 tons, 29.66 tons, 20.4 and 41.5 tons.
3）High hopper feeding amount computing module is calculated on each feed bin after doses, and notice comprehensive control module carries out true
The priority for determining feeding starts；
4）After comprehensive control module receives the priority commencing signal of determining feeding, notice feeding Priority Determination module determines
Expect priority；
The sequencing of each feed bin feeding, determines that priority approach is as follows：
Upper doses divides as needed, and the feed bin priority more than feeding is high, and feeding lack that feed bin priority is low, and advantage is urgent need feeding
The preferential feeding of feed bin, it is few and influence the generation of production accident to avoid or reduce material in feed bin.
Picture is selected by priority on the HMI pictures to system, corresponding priority is selected to determine method, determines each height
The priority of the feeding of position feed bin.According to HMI pictures, priority determines that the sequence by upper doses determines at present.
5）Feeding process comprehensive control module carries out feeding process control according to the priority of each feed bin；Feeding process knot
Shu Hou carries out the amendment of material heap density through comprehensive control module notice material heap density revision module；
51）According to priority ranking, the feed bin of highest priority is selected；
Feeding priority is 26# feed bins, 5# feed bins, 3# feed bins, 2# feed bins, 25# feed bins.
52）Feeding cart control module control feeding cart moves on to the charge door of corresponding 26# feed bins；
53）4 feed bins in underground stock ground vibrating feed control module control underground stock ground（4 feed bins and high hopper in underground stock ground
26# feed bin materials it is identical）Oscillating feeder start vibration feeding；
54）Upper doses in the real time measure module real time measure feeding process of upper doses, when calculating upper doses Wi0 be more than etc.
41.5 tons calculated in step 2, oscillating feeder stop vibration charging；
Wi0=Δt*SP
Wherein, Δ t starts for oscillating feeder vibrating feed to current time interval, SP（128 ton hours）For vibrating feed
The speed of machine vibration feed.
55）Be delayed Δ T2（Ensure that the material on charging belt has been added in corresponding high hopper）, judge all need
The whether whole feedings of high hopper of feeding is wanted to finish, if no feeding finishes, go to step 2）Feeding is continued cycling through, until 1#
Feed bin, 26# feed bins, 3# feed bins feed bin all feedings finish.
The value of Δ T2 when calculating high hopper 26# storehouse feedings：
ΔT2=k1*Lbelt/Vbelt
=1.1*418/120
=3.83 (minutes)
6）Material heap density revision module carries out heap density revision；Go to step 1.
According to the position of level-sensing device before and after last time feeding, the volume of last time charging is calculated, further according to feeding twice it
Between material add in converter material amount（Utilize the data recorded in kiln process control system database）, calculate the heap of material
Density.
Heap density calculation formula is as follows（This is sentenced for 5# feed bins）：
ρ=∑Wj/（V1-V2）
=（2.48+2.35+2.65+2.24+3.14+2.22+2.06+2.28+2.09+2.41+2.63+3.11）/（34.5-3.82）
=0.967 (ton/cubic meter)
By the corresponding 6 heap density of 5# feed bins into line replacement：
ρ0=ρ1；
ρ1=ρ3；
ρ3=ρ4；
ρ4=ρ5；
ρ5=ρ6；
Ρ6=ρ。
It should be noted that above-described embodiment, is not used for limiting protection scope of the present invention, on the basis of above-mentioned technical proposal
Upper made equivalents or replacement each fall within the range that the claims in the present invention are protected.
Claims (4)
1. a kind of automatic control system to converter high hopper feeding, which is characterized in that the control system includes comprehensive control
Molding block；Feeding clock control module, high hopper feeding amount computing module, feeding Priority Determination module, material heap density
Correcting module, feeding cart control module, underground stock ground vibrating feed control module, the real time measure module of upper doses, feeding
Process synthesis control module, the comprehensive control module connects feeding clock control module respectively, high hopper feeding amount calculates
Module, feeding Priority Determination module, material heap density revision module and feeding process comprehensive control module, the feeding mistake
Journey comprehensive control module connect simultaneously feeding cart control module, underground stock ground vibrating feed control module, upper doses it is real-time
Metering module；
The comprehensive control module：For coordinating control between each control module；The feeding clock control module：
For the cycle period of the timing of feeding clock, i.e. period feeding；The high hopper feeding amount computing module：For calculating
Each high hopper needs the amount of feeding；The feeding Priority Determination module：For determining the feeding priority of high hopper,
That is the sequencing of high hopper feeding；The material heap density revision module：For correcting the heap density of material；Described
Feeding cart control module：For the control of the movement of feeding cart；The underground stock ground vibrating feed control module：For
The control of oscillating feeder that stock ground feeds is descended over the ground；The real time measure module of the upper doses：It is right in feeding process
The real time measure of upper doses；The feeding process comprehensive control module：For the Comprehensive Control of each feed bin feeding process.
2. a kind of autocontrol method to converter high hopper feeding, which is characterized in that the control method includes following step
Suddenly, 1）Feeding clock control module carries out feeding timing, when timing time is the integral multiple of feeding time interval Δ T, feeding
Clock control module notifies comprehensive control module through network system, and the new feeding period starts；Otherwise, continue this step, continue
Timing；2）Comprehensive control module receives the signal that the new feeding period of feeding clock control module starts, and notifies high hopper
Feeding amount computing module calculates doses on each feed bin；
3）High hopper feeding amount computing module is calculated on each feed bin after doses, and notice comprehensive control module is determined
The priority of material starts；
4）After comprehensive control module receives the priority commencing signal of determining feeding, notice feeding Priority Determination module determines
Expect priority；
5）Feeding process comprehensive control module carries out feeding process control according to the priority of each feed bin；After feeding process,
The amendment of material heap density is carried out through comprehensive control module notice material heap density revision module；
6）Material heap density revision module carries out heap density revision；Go to step 1）.
3. a kind of autocontrol method to converter high hopper feeding according to claim 2, which is characterized in that described
Step 2）In it is specific as follows：
21）Determine to need the feed bin of feeding；
Each high hopper sets a feeding material position, when current material position is less than feeding material position, in addition to the feed bin of limitation feeding,
Then the feed bin needs to carry out feeding, to reduce the number of feeding, improves efficiency；
22）Feeding of limiting the quantity calculates feeding quantity；
It overhauled after several heats are smelted, change situations such as material variety, need to empty after corresponding heat has been smelted
In the case of feed bin, doses Wm on this is calculated, it is assumed that m-th of feed bin needs charging of limiting the quantity；
According to the production schedule of kiln process control system, after this feeding, the heat number K of production is also needed by steel grade part
And production needs the average consumption WK of the feed bin material per stove, then
Wm=∑K*WK-W0；
Wherein, W0 is the original inventory of feed bin；
High hopper as shown in Figure 1, all sizes it is known that in the case where knowing controlling level h, it is easy to calculate on material
Floor space S, then：
；
It is assumed herein that h is less than h1, wherein ρ is the heap density of the feed bin material, the weighted average of q feeding before taking；
ρ=（ρ1+2*ρ2+3*ρ3+…+q*ρq）/（1+2+3+…+q）.
4. a kind of autocontrol method to converter high hopper feeding according to claim 2, which is characterized in that described
Step 5）In it is specific as follows：51）According to priority ranking, the feed bin of highest priority is selected；
52）Feeding cart control module control feeding cart moves on to the charge door of corresponding feed bin；
53）The oscillating feeder in the stock ground of underground stock ground vibrating feed control module control underground stock ground corresponding material starts to vibrate
Feeding；
54）Upper doses in the real time measure module real time measure feeding process of upper doses, when the upper doses of calculating is more than or equal to
The Wi that step 2 calculates, oscillating feeder stop vibration charging；
55）Be delayed Δ T2（Material on belt, which all adds in high hopper, needs the regular hour, to ensure on charging belt
Material be added in corresponding high hopper, similarly hereinafter）, judge feeding in need the whether whole feedings of high hopper it is complete
Finish, if no feeding finishes, turn the feed bin of lower priority-level, go to step 2）.
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| CN108153232B (en) | 2021-03-12 |
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