CN101329566B - Data transfer control method between blast furnace feeding system and blast furnace cloth system - Google Patents
Data transfer control method between blast furnace feeding system and blast furnace cloth system Download PDFInfo
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- CN101329566B CN101329566B CN2008100486743A CN200810048674A CN101329566B CN 101329566 B CN101329566 B CN 101329566B CN 2008100486743 A CN2008100486743 A CN 2008100486743A CN 200810048674 A CN200810048674 A CN 200810048674A CN 101329566 B CN101329566 B CN 101329566B
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Abstract
The invention provides a data transmission control method between a blast furnace feeding system and a blast furnace distributing system aiming at the problems exist in the matching process of blending parameters of the feeding system and the distributing parameters of the distributing system of the blast furnace; the technical proposal is that the blast furnace feeding PLC stores and circularly reads the blending parameters and the distributing parameters by associating the blending parameters and the distributing diameters, feeding and blending are carried out according to the blending parameters; when coke charge/mine charge of a certain batch enters the body of the blast furnace, the blast furnace feeding PLC transmits the distributing parameters to the blast furnace distributing PLC which carries out distribution according to the received distributing parameters. By adopting the technical proposal of the invention, not only the relative independence of the control process of the feeding system and distributing system can be ensured, but also the strict matching of the blending parameters, the distributing parameters and the actual production state can be guaranteed; simultaneously, even under various failure conditions, the strict correspondence of the stepping and circulation of the parameters and the actual technical process can still be guaranteed, thus guaranteeing the normal production of the blast furnace to the utmost extent.
Description
Technical field
The present invention relates to the industrial automation of blast furnace and control the field, particularly the control that the blast furnace material distribution supplemental characteristic is flowed to.
Background technology
Large blast furnace feed, cloth process are the key links that blast furnace is produced, and blast furnace feeding, cloth control are as the core of the automation of blast furnace, and can it move on stability and high efficiency ground, directly has influence on molten iron quality, production efficiency and the economic benefit of whole blast furnace.
At present, for accurate control molten iron quality, criticize all must have for each coke (per) charge/ore deposit and determine and be that well-determined batching parameter and cloth parameter are corresponding with it in the production.In basic automatization control, because blast furnace feeding comprises that the used equipment of batching and material loading and roof material distributing is various and relatively independent, so be divided into 2 separate systems usually---blast furnace feeding system and roof material distributing system.Adopt respectively 2 independently industrial control computer control, by the blast furnace feeding system computer, be that blast furnace feeding PLC control is prepared burden and feed according to the batching parameter, by the roof material distributing system computer, i.e. blast furnace material distribution PLC control furnace roof equipment carries out cloth according to the cloth parameter.Be feed proportioning system and cloth system respectively by separately computer control, carry out independent parameter setting, stepping and circulation.This control model, in case brought a series of problems---there is one to go wrong in the stepping of feed proportioning system and cloth system and the circulation, and another is still by normal condition work, then can't realize the strict corresponding of technological requirement, and the result must have a strong impact on the production of blast furnace; And in case occur not matching, will cause all follow-up processes all not match if do not adjust at once, and cause the blast furnace can't ordinary production, must as early as possible the operation step of 2 systems be readjusted and be unanimity.Just readjust at first to judge being to adjust the blast furnace feeding system or adjust the roof material distributing system, adjusted step just can be returned to normal production with actual production status is consistent according to the current operation conditions of equipment.The process of adjusting is quite complicated, not only require operating personnel all quite skilled to production and control procedure, and it is long more to adjust the used time, and the adverse effect that production causes to blast furnace is just big more.
Summary of the invention
Technical matters to be solved by this invention is: the problem that exists in matching process at above-mentioned large blast furnace feeder system batching parameter and cloth system cloth parameter, data transfer control method between a kind of blast furnace feeding system and the blast furnace material distribution system is provided, both can guarantee the relatively independent of feeder system and cloth system control procedure, guarantee the parameter of preparing burden again, the strictness coupling of cloth parameter and practical production status, even under various fault state, still can guarantee that the stepping of parameter and circulation are strict corresponding with the actual process process simultaneously, ensure the blast furnace ordinary production to greatest extent.Promptly stop to wait under the situation of significant trouble even system occurs, also can enter waiting status safely, can not produce losing and confusion of data,, can make things convenient for and promptly resume production, reduce the loss that fault causes to greatest extent in case fault is excluded.
For solving the problems of the technologies described above, the technical solution used in the present invention is to adopt such controlled step:
The first data storage area pointer stepping of step 5 blast furnace feeding PLC judges whether current pointer indication memory location is empty, if then pointer points to the first address of first data storage area again, execution in step 4 then; If not, execution in step 4 then.
After step 4, also there is a step 6 parallel with step 5, when charge arrived furnace roof, blast furnace feeding PLC sent the cloth parameter to blast furnace material distribution PLC immediately, controlled the material distributing machine cloth by blast furnace material distribution PLC according to the current cloth parameter that receives.
As further improvement, described blast furnace feeding PLC also is provided with the charge tracking memory cell, described blast furnace feeding PLC also is provided with the charge tracking memory cell, after described step 4, when the charge of this batching parameter correspondence is placed on the feed belt, blast furnace feeding PLC copies to the batching parameter and the cloth parameter of this charge correspondence in the charge tracking memory cell immediately, and blast furnace feeding PLC reads the data of charge tracking memory cell, and the position of this charge on belt monitored in real time.
As preferred version, described first data storage area and second data storage area are merged into and are joined cloth parameter matrix memory block; Described joining comprises the charge parameter storage unit that some sizes are identical in the cloth parameter matrix memory block, the storage of the batching parameter of each charge and cloth continuous parameters is stored in the described charge parameter storage unit as a complete data recording, batching parameter and cloth parameter that first address and the side-play amount by storage matrix is addressable wherein each data recording.
The present invention compared with prior art has following main advantage:
One, improved blast furnace production efficiency, guaranteed strict corresponding between batching parameter, cloth parameter and actual charge, avoided not matching of factor certificate and influence blast furnace production.
Two, improved the stability of blast furnace feeding and cloth system operation, the state of apparatus for distributing and fault can directly not influence the parameter stepping, and the generic failure of feeder apparatus can not influence the parameter stepping yet.In the time can not continuing feed or cloth because of significant trouble, system can enter waiting status, and remembers current state, and pending fault recovers back system normal operation input at once, has farthest reduced the influence that equipment failure is produced blast furnace.
Three, simple operation when influencing the stepping of parameter because of serious equipment failure, only needs to click " pressure stepping " button, and artificial " stepping " once do not need any other operation.When needs are adjusted parameter, only need on the blast furnace feeding computing machine, make amendment and get final product.
Four, by the charge tracking memory cell is set, deposit the charge data of putting into belt system in the tracking memory block, so at any time the parameter in the parameter memory block is made amendment, all only can change the charge parameter of not finishing blending process as yet, and can not influence its original batching and cloth parameter for finishing the charge that enters belt system of preparing burden, guaranteed the stability of system and the dirigibility of operation simultaneously.
Five, cancelled the roof material distributing computing machine, simplified the roof material distributing control system greatly controls such as the setting of cloth parameter, stepping, circulations.
Description of drawings
Fig. 1 is the joining of the batching parameter of large-scale bell-less blast furnace and cloth parameter, cloth matrix logic figure.
Fig. 2 is the flow chart of steps of data transfer control method between blast furnace feeding system of the present invention and the blast furnace material distribution system.
Embodiment
As shown in Figure 1, the technology mode that large-scale bell-less blast furnace adopts usually is a collection of coke " C ", a collection of ore " O ", or a collection of ore " O ", a collection of coke " C " be a charge, and its chats is criticized by the assorted ore deposit of sintering, pelletizing and piece etc. forming, charging system be O ↓ C ↓ or C ↓ O ↓.Furnace roof has adorned a collection of ore deposit and a coke charge is a big charge (Charge), goes round and begins again.The blast furnace of 2000 cubes of meter levels, furnace charge are criticized heavily: the heavy 17.5t of coke (per) charge, heavy 83.3t is criticized in the ore deposit.7～8 large batch (Charge) per hour under the normal condition.After each coke charge charcoal/ore arrived furnace roof, limit was put into blast furnace according to the distributing mode of correspondence by distributor chute according to the heterogeneity of charge.Control the composition of charge by the batching parameter, control distributing mode by the roof material distributing parameter.The batching parameter mainly comprises the weighting set value of each scale hooper, 4～6 coke scale hoopers is arranged usually, 12～16 ore scale hoopers.The cloth parameter comprises: 1. distributing mode comprises 3 kinds of modes, mode 1---annular cloth, mode 2---fan-shaped cloth, mode 3---fixed point cloth; 2. the direction of fascinating of distributor chute comprises 2 kinds of directions, and direction 1 is fascinated to the outer ring by inner ring, and direction 2 is fascinated to inner ring by the outer ring; 3. distributor chute is in the cloth number of turns of each angle.11 different cloth angles are arranged usually, and the angle that has not cloth, the angle that has needs the multi-turn cloth; If selected fan-shaped distributing mode, also need to determine 4. 5. end angle of initial angle and parameter of parameter.By active station with join, the mode of cloth matrix is provided with all parameters.
Be widely adopted at present control feed parameter and cloth parameter separately by blast furnace feeding PLC and blast furnace material distribution PLC to carry out stepping different with the round-robin pattern, in the present invention by in blast furnace feeding, the parameter of will preparing burden is carried out related with the cloth parameter, read batching parameter and cloth parameter by the sharp circulation of blast furnace feeding PLC storage, carry out the feed batching according to batching parameter wherein, when criticize when entering in the blast furnace in coke (per) charge/ore deposit of certain batch, blast furnace feeding PLC passes to blast furnace material distribution PLC with the cloth parameter, and blast furnace material distribution PLC carries out cloth according to the cloth parameter that receives.Specifically the step of control method is as shown in Figure 2:
Step 101: all batching parameters and cloth parameter are provided with or revise by the joining of blast furnace feeding system operation station, cloth matrix;
Step 102: the charge parameter matrix memory block that will join, the batching parameter in the cloth matrix and cloth parameter is stored in blast furnace feeding PLC with the storage mode of data matrix.Charge parameter matrix memory block is divided into the identical charge parameter storage unit of some sizes, the charge parameter storage unit is continuous memory block, ore deposit criticizes/and all the batching parameters and the cloth parameter of coke (per) charge take a charge parameter storage unit as a complete data recording, the first half of charge parameter storage unit is deposited the batching parameter, and latter half is deposited the cloth parameter.Some batches charge parameter storage unit is deposited in order, forms charge parameter matrix memory block.According to the characteristics of matrix stores, address pointer and the side-play amount of blast furnace feeding PLC by storage matrix is addressable and reads batching parameter and the cloth parameter that each charge parameter storage unit is wherein comprised.
Step 103: blast furnace feeding PLC reads charge parameter matrix memory block, and judges whether to be sky, if empty; Then execution in step 120, and report charge parameter matrix memory block mistake behind the wait manual amendment parameter matrix memory block, is returned execution in step 101; If not empty, then execution in step 104;
Step 104: blast furnace feeding PLC reads batching parameter and the cloth parameter that current pointer points to data recording; And according to the batching parameter control batching that is read;
Step 105: when the ore deposit of this batch criticize/coke (per) charge is placed on the belt, blast furnace feeding PLC criticizes this ore deposit immediately/and data in the charge parameter storage unit of coke (per) charge correspondence all put into the charge tracking memory cell, and the position of this charge on belt will be monitored in real time by blast furnace feeding PLC;
Step 106: the pointer stepping of blast furnace feeding PLC charge parameter matrix memory block, point to next bar data recording.
Step 107: blast furnace feeding PLC judges whether current pointer is empty, if then execution in step 108, execution in step 104 then; If not, then execution in step 104;
Step 108: the first address that current pointer is pointed to charge parameter matrix memory block;
Step 109: criticize the arrival furnace roof when coke (per) charge/ore deposit of certain batch, blast furnace feeding PLC passes to blast furnace material distribution PLC. with the data in the charge tracking memory cell with communication modes immediately
Step 110: blast furnace material distribution PLC puts into the cloth data storage cell with the data that are about to receive, when the furnace roof stock rod detects that charge level has reached setting value in the blast furnace, promptly according to the cloth parameter in the cloth data storage cell, the angle that the control distributor chute fascinates to and sets is according to the number of turns cloth of appointment.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. data transfer control method between blast furnace feeding system and the blast furnace material distribution system is characterized in that comprising the steps:
Step 1: batching parameter and the cloth parameter of finishing all charges is set on workstation;
Step 2: first data storage area that the batching parameter of all charges is stored in blast furnace feeding PLC by the charge order, simultaneously the cloth parameter of all charges is stored in second data storage area of blast furnace feeding PLC by the charge order, each charge is stored in the memory address and the related location of the memory address of the cloth parameter that is stored in second data storage area of the batching parameter of first data storage area;
Step 3: blast furnace feeding PLC begins to read first data storage area, judges whether current pointer indication position is empty, if report that then first data storage area is for empty; If not, execution in step 4 then;
Step 4: read the batching parameter of current pointer indication charge, control batcher batching, the while is read the cloth parameter of second data storage area according to related address;
Step 5: the first data storage area pointer stepping of blast furnace feeding PLC, judge whether current pointer indication memory location is empty, if then pointer points to the first address of first data storage area again, execution in step 4 then; If not, execution in step 4 then;
After step 4, also have a step 6 parallel with step 5: when charge arrived furnace roof, blast furnace feeding PLC sent the cloth parameter to blast furnace material distribution PLC immediately, controlled the material distributing machine cloth by blast furnace material distribution PLC according to the current cloth parameter that receives.
2. data transfer control method between blast furnace feeding system according to claim 1 and the blast furnace material distribution system, it is characterized in that, described blast furnace feeding PLC also is provided with the charge tracking memory cell, after described step 4, when the charge of this batching parameter correspondence is placed on the feed belt, blast furnace feeding PLC copies to the batching parameter and the cloth parameter of this charge correspondence in the charge tracking memory cell immediately, blast furnace feeding PLC reads the data of charge tracking memory cell, and the position of this charge on belt monitored in real time.
3. data transfer control method between blast furnace feeding system according to claim 1 and 2 and the blast furnace material distribution system is characterized in that described first data storage area and second data storage area are merged into and joins cloth parameter matrix memory block; Described joining comprises the charge parameter storage unit that some sizes are identical in the cloth parameter matrix memory block, the storage of the batching parameter of each charge and cloth continuous parameters is stored in the described charge parameter storage unit as a complete data recording, batching parameter and cloth parameter that first address and the side-play amount by storage matrix is addressable wherein each data recording.
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| CN101714002B (en) * | 2009-11-30 | 2012-07-25 | 中冶东方工程技术有限公司 | Automatic control device and method for rotary chute rotating position of blast furnace bell-less top |
| CN101968637B (en) * | 2010-09-26 | 2012-09-05 | 中冶南方工程技术有限公司 | Communication control method between blast furnace under-tank feeding system and furnace roof distribution system |
| CN102442536B (en) * | 2011-09-16 | 2013-10-30 | 中冶南方工程技术有限公司 | Discharge controlling method for scattered weighing hoppers under blast furnace tank |
| CN102373309B (en) * | 2011-09-16 | 2013-06-19 | 中冶南方工程技术有限公司 | Dispersed weighting hopper discharging control system under blast furnace trough |
| CN102766708A (en) * | 2012-07-12 | 2012-11-07 | 中冶华天工程技术有限公司 | Blast furnace batching system with material variety precedence matrix |
| CN102836674B (en) * | 2012-09-27 | 2015-01-14 | 常州大学 | Automatic filling method of catalyst |
| CN110554664A (en) * | 2018-06-04 | 2019-12-10 | 联合汽车电子有限公司 | Full-automatic product model changing method |
| CN110578025B (en) * | 2019-06-04 | 2021-04-09 | 湖北工业大学 | Optimization design method for length of main belt of blast furnace |
| CN113552837B (en) * | 2021-07-26 | 2022-11-01 | 中冶华天南京工程技术有限公司 | Flow control method for intelligent stock ground |
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