CN103333972A - Blast-furnace feeding method based on multi-vehicle-mode cooperative control - Google Patents
Blast-furnace feeding method based on multi-vehicle-mode cooperative control Download PDFInfo
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Abstract
The invention relates to a blast-furnace feeding method based on multi-vehicle-mode cooperative control. A matrix distribution mechanism of vehicle modes of the blast-furnace feeding system is firstly determined; then a working condition constraint condition of the blast-furnace feeding system is determined, and all parameters of the condition are initialized; the working condition constraint condition is established according to analysis of the working condition constraint condition met by the a feeding control system and a total feeding amount maximization principle; then a feeding system vehicle mode cooperative control model is established on the basis of the working condition constraint condition; and finally the collected under-groove coke distribution total amount and the under-groove mine distribution total amount are matched with parameters in the vehicle mode cooperative control model, feeding vehicle modes of the current feeding system are recognized, and proper vehicle nodes are selected for feeding, so that the multi-vehicle-mode cooperative control of the blast-furnace feeding system is realized. According to the blast-furnace feeding method, the stability, the timeliness and the reliability of the blast-furnace feeding can be improved; technical conditions and device conditions are created for stable yield and high yield of a blast furnace; and the method is applicable to transform of a current domestic blast-furnace feeding control system.
Description
Technical field
The invention belongs to charging of blast furnace system optimization control field.Be specifically related to a kind of many cars Collaborative Control charging of blast furnace processed method based on model.
Background technology
Along with the continuous quickening of China's modernization, quantity and the quality of iron and steel demand grown with each passing day.The digitized new and high technology direction of the process for producing steel and iron forward of China develops.As the important step in the whole Iron and Steel Production, the new and high technology in the blast furnace iron-making process is used particularly important, and its technical indicator has directly and remarkable influence whole iron and steel technical process.Wherein the charging of blast furnace system is the nucleus equipment of whole blast furnace, is responsible for the conveying of raw material.The charging of blast furnace system is adopted reasonably optimizing and control, become an important topic in the modern steel technology.
Charging of blast furnace is a most important ring in the iron-smelting blast furnace system, effectively material loading planning and distribution, and preparing burden in time, accurately is to guarantee furnace processor and product quality premise.The charging of blast furnace system comprises skip charging system and roof material distributing system.Skip charging system must be rigorous fast, if material loading is slow, is unable to catch up with stockline, influences output; And go up wrong material, blast furnace can not ordinary production.So Blast Furnace Feeding System is the important step in producing, and improves its automatization level, can alleviate labor strength greatly, enhances productivity.Requirement according to modernized blast furnace, feeding control system need be realized automatic blending, automatic charging and detect automatically, embody system stability, advance and economic and practical, therefore from primary stage of design to finishing the application stage, need to adopt advanced control scheme and hardware controls technology always, could finally finish this important system.
What present domestic charging of blast furnace system generally adopted is four cars fixed mode feeding systems processed, and four cars material loading processed is two car cokes, two car ores (two burnt two ore deposits); Because the assignment cause of burnt ore deposit 1:5 ratio can not be utilized two coke grooves fully, 6 tons of capacity are each to load 4.3 tons, and utilization ratio less than 80% has restricted the ability of charging of blast furnace, has reduced the efficient of ironmaking.To this, the present invention proposes based on the charging of blast furnace system car of model optimizing scheduling control processed scheme the charging of blast furnace system to be carried out car transformation processed.
In charging of blast furnace system car system was transformed, five cars material loading processed was two car cokes, three car ores (two burnt three ore deposits), and it is one of key of problem that the truck of the 5th car is selected.Simultaneously, carry out intelligence when switching in four car systems and five car systems, the truck assignment problem of requirement when switching reasonably planned, realize the normal and stable of system for field running, this is the emphasis during car system is transformed, and then guarantee the slitless connection of task between each truck the stability of system not to be affected, can effectively enhance productivity simultaneously.
Summary of the invention
The technical problem that will solve of the present invention provides a kind of charging of blast furnace method based on many cars Collaborative Control processed, this method is satisfying under the operating mode constraint condition, according to given material loading amount and skip car system, by the autonomous judgement to charging of blast furnace system car system, realize the autonomous switching of four cars material loading processed and five cars material loading processed, reach the purpose based on the collaborative burnt ore deposit optimal control of many cars system.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
Charging of blast furnace method based on many cars Collaborative Control processed is characterized in that comprising the steps:
Step 1, determine the mark distribution mechanism of charging of blast furnace system car matrix processed; When adopting four cars processed, earlier carry out the material loading of two car cokes successively and when the second car coke material loading is finished, carry out the mark of car matrix processed, and then carry out the material loading of two car ores and when the second car ore material loading is finished, carry out the mark of car matrix processed; By that analogy, as long as run into the matrix mark that the coke material loading is finished, then carry out the material loading of two car ores; As long as run into the matrix mark that the ore material loading is finished, then carry out the material loading of two car cokes;
When adopting five cars processed, earlier carry out the material loading of two car cokes successively and when the second car coke material loading is finished, carry out the mark of car matrix processed, and then carry out the material loading of three car ores and when the 3rd car ore material loading is finished, carry out the mark of car matrix processed; By that analogy, as long as run into the matrix mark that the coke material loading is finished, then carry out the material loading of three car ores, in like manner, as long as run into the matrix mark that the ore material loading is finished, then carry out the material loading of two car cokes;
Step 2, determine charging of blast furnace system condition constraint condition, and the parameters of charging of blast furnace system condition constraint condition is carried out initialize;
The charging of blast furnace Controlling System must satisfy corresponding operating mode constraint condition just can carry out works better, and wherein operating mode constraint condition comprises: blast furnace east, the burnt bucket maximum capacity of concentrating in west
, blast furnace east, Xi Kuang concentrate the bucket maximum capacity
, iron-smelting process Jiao/ore deposit ratio
Truck car system with the charging of blast furnace system
Step 3, analyze by the operating mode constraint condition that the charging of blast furnace Controlling System is satisfied, set up operating mode constraint condition according to charging of blast furnace total amount maximization principle;
Operating mode constraint condition is:
(3)
In formula (1), (2) and (3):
The burnt bucket coke distribution amount of concentrating in expression blast furnace east,
Step 4, based on operating mode constraint condition, set up charging of blast furnace system car Collaborative Control model processed under the operating mode constraint condition:
In the formula (4):
Expression charging of blast furnace total amount,
Step 5, gather to join under the groove and join the ore deposit total amount under burnt total amount and the groove in real time, join the ore deposit total amount under burnt total amount and the groove with car Collaborative Control Model parameter processed is mated according to joining under the groove of gathering, the skip car system of the current employing of judgement charging of blast furnace Controlling System also selects suitable car system to carry out material loading.
By technique scheme, in the step 5, join burnt total amount under the groove when satisfying simultaneously
With join the ore deposit total amount under the groove
The time, judge that the current skip car system of charging of blast furnace Controlling System is four car systems, according to the maximized control principle of charging of blast furnace Controlling System material loading total amount that sets in advance, if
, then the charging of blast furnace Controlling System continues to adopt four car systems, if
, then this moment, the charging of blast furnace Controlling System adopted five car systems;
Join burnt total amount under the groove when satisfying simultaneously
With join the ore deposit total amount under the groove
The time, judge that the current skip car system of charging of blast furnace Controlling System is five car systems, according to the maximized control principle of charging of blast furnace Controlling System material loading total amount that sets in advance, if
, then the charging of blast furnace Controlling System continues to adopt five car systems, if
, then this moment, the charging of blast furnace Controlling System adopted four car systems.
By technique scheme, in the step 3, by the constant of technology decision
The present invention analyzes by the operating mode constraint condition that steel industry charging of blast furnace Controlling System is satisfied, set up charging of blast furnace system car Collaborative Control mathematical model processed under the operating mode constraint condition, select based on the maximized many cars of charging of blast furnace total amount Collaborative Control principle processed.The charging of blast furnace system car Collaborative Control model processed that the present invention proposes belongs to MIXED INTEGER and optimizes mathematical model, and it can be taken into account fixed cost with the form of optimum, and can be by calculating optimum point.
With respect to prior art, charging of blast furnace method based on many cars Collaborative Control processed of the present invention, the energy Intelligent Recognition is also handled four car systems and five car systems, and between two kinds of car systems, independently switch and then carry out automatic charging control, thereby improve the utilising efficiency of feeding system, and then can improve the automatization level of charging of blast furnace system.This method not only can improve stability, real-time and the reliability of charging of blast furnace system, has also created technical qualification and appointed condition for the stable and high yields of blast furnace.
Description of drawings
Fig. 1 is the charging of blast furnace method flow block diagram based on many cars Collaborative Control processed of the present invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, is not the restriction to its protection domain.
According to this clearly demarcated implement based on the charging of blast furnace method of many cars Collaborative Control processed as shown in Figure 1.Specifically comprise the steps:
Step 1, determine the mark distribution mechanism of charging of blast furnace system car matrix processed;
When the charging of blast furnace system adopts four cars processed, elder generation carries out the material loading of two car cokes successively and carry out the mark of car matrix processed when the second car coke material loading is finished, namely under the groove that is passed to upper computer by field real-time acquisition, carry out the mark that the coke material loading is finished in the raw material transport matrix, and then carry out the material loading of two car ores and when the second car ore material loading is finished, carry out the mark of car matrix processed, namely under the groove that is passed to upper computer by field real-time acquisition, carry out the mark that the ore material loading is finished in the raw material transport matrix, carry out charging of blast furnace according to the mark in the raw material transport matrix under the groove at last; By that analogy, as long as run into the matrix mark that the coke material loading is finished, then carry out the material loading of two car ores; As long as run into the matrix mark that the ore material loading is finished, then carry out the material loading of two car cokes.
When the charging of blast furnace system adopts five cars processed, elder generation carries out the material loading of two car cokes successively and carry out the mark of car matrix processed when the second car coke material loading is finished, namely under the groove that is passed to upper computer by field real-time acquisition, carry out the mark that the coke material loading is finished in the raw material transport matrix, and then carry out the material loading of three car ores and when the 3rd car ore material loading is finished, carry out the mark of car matrix processed, namely under the groove that is passed to upper computer by field real-time acquisition, carry out the mark that the ore material loading is finished in the raw material transport matrix, carry out charging of blast furnace according to the mark in the raw material transport matrix under the groove at last; By that analogy, as long as run into the matrix mark that the coke material loading is finished, then carry out the material loading of three car ores, in like manner, as long as run into the matrix mark that the ore material loading is finished, then carry out the material loading of two car cokes.
Following table 1 is the car of concrete material loading process matrix sign processed example.Wherein, the delegation of every each sequence number back represents a car below the license number; The corresponding ore deposit of the row of each ore deposit correspondence groove, a plurality of ore deposits groove in the same car of digitized representation of correspondence under each ore deposit groove in delegation; Mark B represents to begin material loading; Mark M represents that coke truck material loading is finished or the mine car material loading is finished, and mark E represents to finish whole material loadings.Arithemetic unit corresponding under coke and each ore deposit groove is time (t).
Mark B after the initialize begins the 1st car coke material loading 4.3t; Carry out the 2nd car coke material loading afterwards, mark M after finishing; The multiple ore deposit of the 3rd car material loading afterwards, and then the 4th car material loading is agglomerate 19t only, back mark M finishes; What this carried out is four cars material loadings processed.
Capable from 5-9, what carry out is five cars material loadings processed.Showed the process of a car system switching to the mark M of the 5th row by the 4th row.
Table 1: car system is switched and the mark matrix
| License number | Coke | Ore A | Ore B | Ore C | Ore D | Mark |
| 1 | 4.30 | B | ||||
| 2 | 4.30 | M | ||||
| 3 | 6.70 | 10.50 | 6.30 | |||
| 4 | 19.00 | M | ||||
| 5 | 5.50 | |||||
| 6 | 5.50 | M | ||||
| 7 | 3.90 | 14.80 | 5.30 | |||
| 8 | 12.00 | 4.20 | ||||
| 9 | 13.00 | M | ||||
| 10 | 4.30 | |||||
| 11 | 4.30 | M | ||||
| 12 | 6.70 | 10.50 | 6.30 | |||
| 13 | 19.00 | M | ||||
| 14 | 5.50 | |||||
| 15 | 5.50 | M | ||||
| 16 | 3.90 | 14.80 | 5.30 | |||
| 17 | 12.00 | 4.20 | ||||
| 18 | 13.00 | E |
Step 2, determine charging of blast furnace system condition constraint condition, and the parameters of charging of blast furnace system condition constraint condition is carried out initialize
The charging of blast furnace Controlling System must satisfy corresponding operating mode constraint condition just can carry out works better, and wherein operating mode constraint condition comprises: blast furnace east, the burnt bucket maximum capacity of concentrating in west
, blast furnace east, Xi Kuang concentrate the bucket maximum capacity
, iron-smelting process Jiao/ore deposit ratio
Truck car system with the charging of blast furnace system
In the present embodiment, get
Initial value be respectively 4.48
t, 18.24
t, 1:5,4.
Step 3, analyze by the operating mode constraint condition that the charging of blast furnace Controlling System is satisfied, set up operating mode constraint condition according to charging of blast furnace total amount maximization principle.
Operating mode constraint condition is:
In formula (1), (2) and (3):
The burnt bucket coke distribution amount of concentrating in expression blast furnace east,
Expression blast furnace Xi Kuang concentrates the bucket ore proportioning quantity,
Expression iron-smelting process Jiao/ore deposit ratio,
The constant that expression is determined by technology,
In the present embodiment, get the constant that is determined by technology
, and under operating mode constraint condition, make charging of blast furnace total amount maximum.
Step 4, based on operating mode constraint condition, set up charging of blast furnace system car Collaborative Control model processed under the operating mode constraint condition.
Set up charging of blast furnace system car Collaborative Control model processed under the operating mode constraint condition:
In the formula (4):
Expression charging of blast furnace total amount,
Expression iron-smelting process Jiao/ore deposit ratio,
Step 5, gather to join under the groove and join the ore deposit total amount under burnt total amount and the groove in real time, join the ore deposit total amount under burnt total amount and the groove with car Collaborative Control Model parameter processed is mated according to joining under the groove of gathering, the skip car system of the current employing of judgement charging of blast furnace Controlling System also selects suitable car system to carry out material loading.
Join burnt total amount under the groove when satisfying simultaneously
With join the ore deposit total amount under the groove
The time, judge that the current skip car system of charging of blast furnace Controlling System is four car systems, according to the maximized control principle of charging of blast furnace Controlling System material loading total amount that sets in advance, if
, then the charging of blast furnace Controlling System continues to adopt four car systems, if
, then this moment, the charging of blast furnace Controlling System adopted five car systems.
Join burnt total amount under the groove when satisfying simultaneously
With join the ore deposit total amount under the groove
The time, judge that the current skip car system of charging of blast furnace Controlling System is five car systems, according to the maximized control principle of charging of blast furnace Controlling System material loading total amount that sets in advance, if
, then the charging of blast furnace Controlling System continues to adopt five car systems, if
, then this moment, the charging of blast furnace Controlling System adopted four car systems.
The present embodiment method can the groove of resolution system under the problem that can not utilize fully of coke groove, make the car scheduling controlling processed of charging of blast furnace system be not limited to certain single car system more flexibly and the material loading ability increases greatly.
Present embodiment can be realized the collaborative intelligent control of many cars system of charging of blast furnace system, and the energy Intelligent Recognition is also handled four car systems and five car systems, and then improves the automatization level of blast furnace utilization ratio and feeding system, has better economic and social benefit.
Above-described embodiment is used for explaining the present invention, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall within the scope of protection of the present invention.
Claims (3)
1. the charging of blast furnace method based on many cars Collaborative Control processed is characterized in that comprising the steps:
Step 1, determine the mark distribution mechanism of charging of blast furnace system car matrix processed; When adopting four cars processed, earlier carry out the material loading of two car cokes successively and when the second car coke material loading is finished, carry out the mark of car matrix processed, and then carry out the material loading of two car ores and when the second car ore material loading is finished, carry out the mark of car matrix processed; By that analogy, as long as run into the matrix mark that the coke material loading is finished, then carry out the material loading of two car ores; As long as run into the matrix mark that the ore material loading is finished, then carry out the material loading of two car cokes;
When adopting five cars processed, earlier carry out the material loading of two car cokes successively and when the second car coke material loading is finished, carry out the mark of car matrix processed, and then carry out the material loading of three car ores and when the 3rd car ore material loading is finished, carry out the mark of car matrix processed; By that analogy, as long as run into the matrix mark that the coke material loading is finished, then carry out the material loading of three car ores, in like manner, as long as run into the matrix mark that the ore material loading is finished, then carry out the material loading of two car cokes;
Step 2, determine charging of blast furnace system condition constraint condition, and the parameters of charging of blast furnace system condition constraint condition is carried out initialize;
The charging of blast furnace Controlling System must satisfy corresponding operating mode constraint condition just can carry out works better, and wherein operating mode constraint condition comprises: blast furnace east, the burnt bucket maximum capacity of concentrating in west
, blast furnace east, Xi Kuang concentrate the bucket maximum capacity
, iron-smelting process Jiao/ore deposit ratio
Truck car system with the charging of blast furnace system
Step 3, analyze by the operating mode constraint condition that the charging of blast furnace Controlling System is satisfied, set up operating mode constraint condition according to charging of blast furnace total amount maximization principle;
Operating mode constraint condition is:
(1)
In formula (1), (2) and (3):
The burnt bucket coke distribution amount of concentrating in expression blast furnace east,
Expression blast furnace Dong Kuang concentrates the bucket ore proportioning quantity,
Expression blast furnace east, the burnt maximum capacity of concentrating bucket in west,
Expression blast furnace east, Xi Kuang concentrate the maximum capacity of bucket,
Step 4, based on operating mode constraint condition, set up charging of blast furnace system car Collaborative Control model processed under the operating mode constraint condition:
(4)
In the formula (4):
Expression charging of blast furnace total amount,
Step 5, gather to join under the groove and join the ore deposit total amount under burnt total amount and the groove in real time, join the ore deposit total amount under burnt total amount and the groove with car Collaborative Control Model parameter processed is mated according to joining under the groove of gathering, the skip car system of the current employing of judgement charging of blast furnace Controlling System also selects suitable car system to carry out material loading.
2. the charging of blast furnace method based on many cars Collaborative Control processed according to claim 1 is characterized in that: in the step 5, join burnt total amount under the groove when satisfying simultaneously
With join the ore deposit total amount under the groove
The time, judge that the current skip car system of charging of blast furnace Controlling System is four car systems, according to the maximized control principle of charging of blast furnace Controlling System material loading total amount that sets in advance, if
, then the charging of blast furnace Controlling System continues to adopt four car systems, if
, then this moment, the charging of blast furnace Controlling System adopted five car systems;
Join burnt total amount under the groove when satisfying simultaneously
With join the ore deposit total amount under the groove
The time, judge that the current skip car system of charging of blast furnace Controlling System is five car systems, according to the maximized control principle of charging of blast furnace Controlling System material loading total amount that sets in advance, if
, then the charging of blast furnace Controlling System continues to adopt five car systems, if
, then this moment, the charging of blast furnace Controlling System adopted four car systems.
3. the charging of blast furnace method based on many cars Collaborative Control processed according to claim 1 and 2 is characterized in that: the constant that is determined by technology in the step 3
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| CN103729686A (en) * | 2013-12-13 | 2014-04-16 | 武汉钢铁(集团)公司 | System and method for intelligently switching car systems of blast furnace loading system |
| CN113110337A (en) * | 2021-04-20 | 2021-07-13 | 中国华能集团有限公司 | Intelligent feeding device and method for vibroflotation gravel pile |
| CN113174451A (en) * | 2021-04-15 | 2021-07-27 | 鞍钢股份有限公司 | Control method for pre-loading distribution of blast furnace burden |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103729686A (en) * | 2013-12-13 | 2014-04-16 | 武汉钢铁(集团)公司 | System and method for intelligently switching car systems of blast furnace loading system |
| CN103729686B (en) * | 2013-12-13 | 2017-02-08 | 武汉钢铁(集团)公司 | System and method for intelligently switching car systems of blast furnace loading system |
| CN113174451A (en) * | 2021-04-15 | 2021-07-27 | 鞍钢股份有限公司 | Control method for pre-loading distribution of blast furnace burden |
| CN113110337A (en) * | 2021-04-20 | 2021-07-13 | 中国华能集团有限公司 | Intelligent feeding device and method for vibroflotation gravel pile |
| CN113110337B (en) * | 2021-04-20 | 2022-04-05 | 中国华能集团有限公司 | Intelligent feeding device and method for vibroflotation gravel pile |
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