CN113249564B - Intelligent pile changing method for sintering and blending ore - Google Patents
Intelligent pile changing method for sintering and blending ore Download PDFInfo
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- CN113249564B CN113249564B CN202110510582.8A CN202110510582A CN113249564B CN 113249564 B CN113249564 B CN 113249564B CN 202110510582 A CN202110510582 A CN 202110510582A CN 113249564 B CN113249564 B CN 113249564B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
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Abstract
The invention relates to an intelligent heap replacement method for sintering and blending ores, which comprises the following steps: obtaining a sintering blending ore pile changing adjustment parameter, obtaining the maximum adjustment times, and calculating a target bin position of the blending ore bin position balance participating in pile changing; obtaining the residual bin positions in the blending ore bins participating in pile changing, carrying out slot position balance calculation according to the difference value between the target bin position and the residual bin positions of the slot position balance, and distributing the actual blanking amount and proportion of the blending ore proportioning bins; blanking each raw material bin according to the actual blanking amount and proportion, so that each blending ore bin participating in pile replacement can reach a target bin position at the same time; and after the slot position balance is finished, uniformly distributing the total proportion of the uniformly mixed ore to the uniformly mixed ore bins participating in pile replacement, calculating the actual blanking amount and proportion of each uniformly mixed ore bin, and blanking. The invention can reduce the quality fluctuation of the sintering ore in the pile changing process.
Description
Technical Field
The invention relates to the technical field of sintering of blended ores, in particular to an intelligent pile changing method for sintering the blended ores.
Background
The uniform ore is a main iron-containing raw material used in a sintering process, consists of iron ores with various components and properties, and is obtained by mixing and stacking according to the quality requirement of sintering on the uniform ore and the characteristics of different iron ores. The method is characterized in that the common enterprise mixed ore is two material strips and two material piles or one material strip and two material piles, one material pile can be used only after the stacking plan is completed and the material sealing is completed, and the ore blending structure and components between each two material piles have certain difference, so that the sintering process uses the mixed ore of different material piles, the quality has certain fluctuation in the pile changing process, the switching between the common enterprise mixed ore piles and the pile is manually operated, the estimation is completed by manual experience, the defects of large workload, low accuracy, low adaptability and the like exist, the whole pile changing process needs several hours, the quality fluctuation of the sintered ore in the pile changing process is large, and the direct operation influence on a blast furnace in the next process is large.
Disclosure of Invention
The invention aims to solve the technical problem of providing an intelligent pile changing method for uniformly mixed sintering ores, which can reduce the fluctuation of the quality of the sintering ores in the pile changing process.
The technical scheme adopted by the invention for solving the technical problems is as follows: the intelligent heap replacement method for the sintering blending ore comprises the following steps:
(1) Obtaining pile changing adjustment parameters of the sintering and blending ores, obtaining the maximum adjustment times, and calculating a target bin position for balancing the blending ore bin positions participating in pile changing;
(2) Obtaining the residual bin positions in the blending ore bins participating in pile changing, carrying out slot position balance calculation according to the difference value between the target bin position and the residual bin positions of the slot position balance, and distributing the actual blanking amount and proportion of the blending ore proportioning bins;
(3) Blanking each raw material bin according to the actual blanking amount and proportion, and realizing that each blending ore bin participating in pile changing can reach a target bin position at the same time;
(4) And after the slot position balance is finished, uniformly distributing the total proportion of the uniformly mixed ore to the uniformly mixed ore bins participating in pile replacement, calculating the actual blanking amount and proportion of each uniformly mixed ore bin, and blanking.
In the step (1), the maximum adjusting times of the sintering blending ore pile changing are obtained through the blending ore pile changing plan, and the target bin position of slot position balance of each blending ore bin participating in pile changing is calculated according to the blending ore pile changing technical standard.
And (4) judging whether the actual blanking amount of each uniformly-mixed ore bin meets the minimum cut-out amount or not between the step (2) and the step (3), if so, entering the step (3), otherwise, performing downshift processing, wherein the downshift processing is to reduce the slot position balance target bin position and perform slot position balance calculation again.
And (5) judging whether new materials are put into each blending ore bin participating in the pile changing or not after the step (4), and if so, performing parameter adjustment control according to the residual proportion of the old materials.
Advantageous effects
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the invention can analyze and judge according to the actual production conditions, correct the pile changing parameters and adjust the quality in time, realize the accurate control of the pile changing process, reduce the workload of personnel and improve the stability of the quality of sintered mineral products in the pile changing process.
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FIG. 1 is a flow chart of the present invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to an intelligent heap replacement method for sintering blending ores, which comprises the following steps as shown in figure 1: obtaining a sintering blending ore pile changing adjustment parameter, obtaining the maximum adjustment times, and calculating a target bin position of the blending ore bin position balance participating in pile changing; obtaining the residual bin positions in the blending ore bins participating in pile changing, carrying out slot position balance calculation according to the difference value between the target bin position and the residual bin positions of the slot position balance, and distributing the actual blanking amount and proportion of the blending ore proportioning bins; blanking each raw material bin according to the actual blanking amount and proportion, so that each blending ore bin participating in pile replacement can reach a target bin position at the same time; and after the slot position balance is finished, uniformly distributing the total proportion of the uniformly mixed ore to the uniformly mixed ore bins participating in pile replacement, calculating the actual blanking amount and proportion of each uniformly mixed ore bin, and blanking.
According to the implementation mode of the invention, the pile changing model of the sintering blending ores can be established in the intelligent sintering system, and the existing pile changing full-manual operation mode is subjected to one-key intelligent control in the intelligent sintering system, so that the pile changing process is accurately controlled, the workload of personnel is reduced, and the stability of the quality of the sintering ores in the pile changing process is improved. The method comprises the following specific steps:
adjusting and controlling pile changing parameters; after the new mixed ore piles are sealed, after the mixed ore pile changing plan of the intelligent sintering system is finished, the intelligent pile changing system automatically grabs adjusting parameters such as R (sintered ore alkalinity), mgO, C and the like, calculates target bin positions with balanced slot positions according to parameter adjusting values and maximum adjusting times, and calculates the target bin positions with balanced slot positions of the mixed ore bins participating in pile changing according to the technical standard of mixed ore pile changing.
And (4) slot position balance control: after the old material is taken out, the system automatically captures the residual material level of the ore bin participating in the change of the material and mixing, performs slot balance calculation according to the difference value of a slot balance target bin level and the residual bin level, distributes the actual blanking amount and proportion of each bin, and realizes the purpose that the old material participating in the change of the material bin simultaneously reaches the target bin level through balance control.
It is worth mentioning that after distributing the actual blanking amount and proportion of each bin, before blanking each blending ore bin, whether the actual blanking amount of each distributed raw material bin meets the minimum cut-out amount is judged, if yes, blanking is carried out on each blending ore bin, otherwise, downshift processing is carried out, namely, the target bin position of slot position balance is reduced, and slot position balance calculation is carried out again.
And (3) parameter adjustment control: and evenly distributing the blending ore ratio of each bin after the slot position balance is finished, and performing parameter adjustment control according to the old material residual ratio determined by the parameter adjustment times and the adjustment value after new materials are fed into the bins participating in the stockpiling change.
The method has the advantages that one-key intelligent control can be realized by using the method for replacing the sintered and mixed ore, the workload of workers is greatly reduced, the operation accuracy of replacing the ore is greatly improved, and various conditions of the ore replacing process can be freely met. The pile changing and adjusting accuracy and the stability of the sintered mineral quality are obviously improved.
Claims (3)
1. An intelligent heap replacement method for sintering blending ores is characterized by comprising the following steps:
(1) Obtaining pile changing adjustment parameters of the sintering and blending ores, obtaining the maximum adjustment times, and calculating a target bin position for balancing the blending ore bin positions participating in pile changing;
(2) Obtaining the residual bin positions in the blending ore bins participating in pile changing, carrying out slot position balance calculation according to the difference value between the target bin position and the residual bin positions of the slot position balance, and distributing the actual blanking amount and proportion of the blending ore proportioning bins;
(3) Blanking each raw material bin according to the actual blanking amount and proportion, and realizing that each blending ore bin participating in pile changing can reach a target bin position at the same time;
(4) After the slot position balance is finished, evenly distributing the total proportion of the blending ores to blending ore bins participating in pile replacement, calculating the actual feeding amount and proportion of each blending ore bin, and feeding;
and (4) judging whether the actual blanking amount of each uniformly-mixed ore bin meets the minimum cut-out amount or not between the step (2) and the step (3), if so, entering the step (3), otherwise, performing downshift processing, wherein the downshift processing is to reduce the slot position balance target bin position and perform slot position balance calculation again.
2. The intelligent blending ore heap changing method according to claim 1, wherein in the step (1), the maximum adjusting times of blending ore heap changing of the sintering blending ore is obtained through a blending ore heap changing plan, and the target bin position of slot position balance of each blending ore bin participating in heap changing is calculated according to the blending ore heap changing technical standard of the sintering blending ore.
3. The intelligent ore-blending ore-changing heap method according to claim 1, wherein the step (4) is followed by judging whether new materials are put into each blending ore bin involved in heap changing, and if so, performing parameter adjustment control according to the residual proportion of old materials.
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| KR100469299B1 (en) * | 2000-12-16 | 2005-01-31 | 주식회사 포스코 | sinter manufacture method |
| KR20050010264A (en) * | 2003-07-18 | 2005-01-27 | 주식회사 포스코 | Method for manufacturing sintered ore using the baking tempature on the wind box |
| CN101364087B (en) * | 2008-09-18 | 2010-12-01 | 中冶长天国际工程有限责任公司 | Sintering, mixing and water adding control method and system |
| CN103695639B (en) * | 2013-12-02 | 2015-11-04 | 天津钢铁集团有限公司 | Sinter basicity inflation method |
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