CN114622047B - Method, device, equipment and storage medium for determining working state of blast furnace hearth - Google Patents
Method, device, equipment and storage medium for determining working state of blast furnace hearth Download PDFInfo
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- CN114622047B CN114622047B CN202210180029.7A CN202210180029A CN114622047B CN 114622047 B CN114622047 B CN 114622047B CN 202210180029 A CN202210180029 A CN 202210180029A CN 114622047 B CN114622047 B CN 114622047B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
Abstract
The embodiment of the invention provides a method, a device, equipment and a storage medium for determining the working state of a blast furnace hearth. As the working heat load parameter can represent the temperature fluctuation condition of the blast furnace hearth, compared with the single monitoring of the temperature of a certain point of the hearth or the water temperature difference in the prior art, the working state of the hearth is judged, and the embodiment of the invention can more accurately analyze and judge the temperature condition of the furnace wall of the hearth. Therefore, according to the working heat load parameters, the working state of the target furnace hearth can be more accurately determined, and the accuracy of judging the working state of the blast furnace hearth is improved.
Description
Technical Field
The invention relates to the technical field of blast furnace ironmaking, in particular to a method, a device, equipment and a storage medium for determining the working state of a blast furnace hearth.
Background
The hearth is used as one of important areas in blast furnace ironmaking production, and the service life of the hearth determines the service life of the blast furnace. Because the working state inside the hearth is difficult to directly observe, the temperature and the water temperature difference (or the heat flow intensity) of the brick lining with the largest furnace service of the previous generation are set as early warning values by some blast furnace operators and are used as technical indexes for judging the working state and the corrosion condition of the hearth of the new generation. Practice proves that the temperature and water temperature difference (or heat flow intensity) of the hearth side wall brick lining are closely related to the working state and cooling intensity of the hearth and the heat resistance of the hearth refractory brick lining. The thermal resistance of the refractory brick lining is closely related to the design structure, material selection, masonry quality and baking quality of the blast furnace hearth, and the blast furnace in different furnace services has larger difference.
In the prior art, some researchers establish a model of inverse problems of a hearth and bottom temperature field on the basis of a heat transfer equation according to temperature and position information of a hearth refractory brick lining thermocouple, calculate the temperature field distribution of the hearth and bottom, and judge hearth and bottom erosion and slag-iron shell change of a brick lining surface so as to evaluate the working state of the hearth. However, when abnormal fluctuation occurs in the furnace condition, the initial stage of furnace opening and the final stage of furnace service, the operation parameters of the blast furnace and the components of the slag iron shell of the brick lining surface are different from the design parameters of the model, the thickness of the brick lining calculated by the model and the change of the slag iron shell are greatly different, and the working state of the hearth is judged to have certain hysteresis and distortion according to the model.
Disclosure of Invention
The embodiment of the invention solves the technical problem of inaccurate judgment of the working state of the blast furnace hearth in the prior art by providing the method, the device, the equipment and the storage medium for determining the working state of the blast furnace hearth.
In a first aspect, the present invention provides a method for determining a working state of a blast furnace hearth according to an embodiment of the present invention, including: acquiring actual furnace bottom temperature data of a target furnace hearth and acquiring actual furnace wall temperature data of the target furnace hearth; determining a working heat load parameter of the target blast furnace hearth based on the actual hearth temperature data and the actual furnace wall temperature data; and determining the working state of the target blast furnace hearth according to the working heat load parameters.
Preferably, the target blast furnace hearth is provided with a furnace bottom brick lining, a plurality of first thermocouples are arranged at the bottom of the furnace bottom brick lining, and a plurality of second thermocouples are arranged around the side wall of the furnace bottom brick lining; the obtaining of the actual furnace bottom temperature data of the target furnace hearth comprises the following steps: monitoring the bottom temperature of the target blast furnace hearth through the first thermocouples so as to obtain the actual hearth temperature data; the acquiring actual furnace wall temperature data of the target blast furnace hearth comprises: and monitoring the side wall temperature of the target blast furnace hearth through the second thermocouples so as to acquire the actual furnace wall temperature data.
Preferably, said determining a working heat load parameter for said target hearth based on said actual hearth temperature data and said actual furnace wall temperature data comprises: carrying out average calculation on each furnace bottom temperature value in the actual furnace bottom temperature data to obtain a furnace bottom temperature average value; and determining the working heat load parameter according to each side wall temperature value in the actual furnace wall temperature data and the furnace bottom temperature average value.
Preferably, said determining said operating heat load parameter based on each sidewall temperature value in said actual furnace wall temperature data and said furnace bottom temperature average value comprises: and determining the ratio of each side wall temperature value in the actual furnace wall temperature data to the furnace bottom temperature average value, and determining the variance of the ratio to obtain the working thermal load parameter.
Preferably, the determining the working state of the target blast furnace hearth according to the working heat load parameter includes: judging the magnitude relation between the working thermal load parameter and the first preset reference threshold and/or the second preset reference threshold based on the first preset reference threshold and the second preset reference threshold; and determining the working state of the target blast furnace hearth according to the size relation.
Preferably, the first preset reference threshold is smaller than the second preset reference threshold; the determining the working state of the target blast furnace hearth according to the size relation comprises the following steps: if the working heat load parameter is smaller than or equal to the first preset reference threshold value, determining that the working state of the target blast furnace hearth is good; if the working heat load parameter is smaller than or equal to the first preset reference threshold value, determining that the working state of the target blast furnace hearth is poor; and if the working heat load parameter is smaller than or equal to the first preset reference threshold value, determining that the working state of the target blast furnace hearth is poor.
In a second aspect, the present invention provides, according to an embodiment of the present invention, a blast furnace hearth operating condition determining apparatus including:
a temperature data acquisition unit for acquiring actual furnace bottom temperature data of the target blast furnace hearth and acquiring actual furnace wall temperature data of the target blast furnace hearth;
a heat load determining unit for determining a working heat load parameter for the target hearth based on the actual hearth temperature data and the actual furnace wall temperature data;
and the working state determining unit is used for determining the working state of the target blast furnace hearth according to the working heat load parameters.
Preferably, the thermal load determining unit is specifically configured to:
carrying out average calculation on each furnace bottom temperature value in the actual furnace bottom temperature data to obtain a furnace bottom temperature average value;
and determining the working heat load parameter according to each side wall temperature value in the actual furnace wall temperature data and the furnace bottom temperature average value.
In a third aspect, the present invention provides, by way of example, a blast furnace hearth operating condition determining apparatus comprising a memory, a processor and code stored on the memory and executable on the processor, the processor implementing any of the embodiments of the first aspect when executing the code.
In a fourth aspect, the present invention provides, by way of example, a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the embodiments of the first aspect.
One or more technical solutions provided in the embodiments of the present invention at least have the following technical effects or advantages:
firstly, acquiring actual furnace bottom temperature data of a target furnace hearth and actual furnace wall temperature data of the target furnace hearth; based on the actual furnace bottom temperature data and the actual furnace wall temperature data, a working heat load parameter for the target furnace hearth is determined. As the working heat load parameter can represent the temperature fluctuation condition of the blast furnace hearth, compared with the single monitoring of the temperature of a certain point of the hearth or the water temperature difference in the prior art, the working state of the hearth is judged, and the embodiment of the invention can more accurately analyze and judge the temperature condition of the furnace wall of the hearth. Therefore, according to the working heat load parameters, the working state of the target furnace hearth can be more accurately determined, and the accuracy of judging the working state of the blast furnace hearth is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for determining the operating state of a blast furnace hearth according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a blast furnace according to the embodiment of the present invention in the late stage of the furnace operation, corresponding to the change of the working heat load parameters;
FIG. 3 is a schematic diagram of a blast furnace according to the embodiment of the present invention in the early stage of the furnace operation, corresponding to the change of the working heat load parameters;
FIG. 4 is a schematic view showing the construction of a blast furnace hearth operating condition determining apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic view showing the construction of a blast furnace hearth operation state determining apparatus according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a computer-readable storage medium structure in an embodiment of the invention.
Detailed Description
The embodiment of the invention solves the technical problem of inaccurate judgment of the working state of the blast furnace hearth in the prior art by providing the method, the device, the equipment and the storage medium for determining the working state of the blast furnace hearth.
The technical scheme provided by the embodiment of the invention aims to solve the technical problems, and the overall thought is as follows:
acquiring actual furnace bottom temperature data of a target furnace hearth and acquiring actual furnace wall temperature data of the target furnace hearth; then, based on the actual furnace bottom temperature data and the actual furnace wall temperature data, a working heat load parameter for the target furnace hearth is determined.
As the working heat load parameter can represent the temperature fluctuation condition of the blast furnace hearth, compared with the single monitoring of the temperature of a certain point of the hearth or the water temperature difference in the prior art, the working state of the hearth is judged, and the embodiment of the invention can more accurately analyze and judge the temperature condition of the furnace wall of the hearth. Therefore, according to the working heat load parameters, the working state of the target furnace hearth can be more accurately determined, and the accuracy of judging the working state of the blast furnace hearth is improved.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
First, the term "and/or" appearing herein is merely an association relationship describing associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be capable of operation in sequences other than those illustrated or otherwise described.
In a first aspect, the present invention provides a method for determining the operating state of a blast furnace hearth according to an embodiment of the present invention, which can be used to determine the erosion degree of the blast furnace hearth and the operating state of the interior of the hearth.
Referring to fig. 1, the method includes the following steps:
step S101: actual furnace bottom temperature data of a target furnace hearth are obtained, and actual furnace wall temperature data of the target furnace hearth are obtained.
Specifically, the target furnace hearth is provided with a furnace bottom brick lining, a plurality of first thermocouples are arranged at the bottom of the furnace bottom brick lining, and a plurality of second thermocouples are arranged around the side wall of the furnace bottom brick lining.
In a specific implementation, the furnace bottom brick lining may be provided with multiple layers, a plurality of second thermocouples may be circumferentially arranged along a certain elevation and angle on each layer of side wall of the furnace bottom brick lining, and a plurality of first thermocouples may be provided in a bottom area of the furnace bottom brick lining, specifically, a central area of a bottom portion of the furnace bottom brick lining.
Based on the thermocouple arrangement, the bottom temperature of the target furnace hearth can be monitored through a plurality of first thermocouples so as to obtain actual furnace bottom temperature data; similarly, the sidewall temperature of the target furnace hearth can be monitored by a plurality of second thermocouples to obtain actual furnace wall temperature data.
Step S102: and determining the working heat load parameter of the target furnace hearth based on the actual furnace bottom temperature data and the actual furnace wall temperature data.
Specifically, the average calculation can be performed on each furnace bottom temperature value in the actual furnace bottom temperature data to obtain a furnace bottom temperature average value, and then, the working heat load parameter is determined according to each side wall temperature value and the furnace bottom temperature average value in the actual furnace wall temperature data.
As an alternative embodiment, the average temperature detected by the first thermocouple may be calculated to obtain an average furnace bottom temperature value; wherein the first thermocouple may be disposed at an uppermost layer of the bottom brick substrate portion.
Different from the above embodiment, the average value of the furnace bottom temperature may be obtained by performing average calculation on the temperature detected by the first thermocouple and the temperature detected by the second thermocouple; wherein the first thermocouple may be disposed at an uppermost layer of the bottom brick substrate portion, and the second thermocouple may be disposed at a central region of the bottom brick substrate portion.
For example, the average calculation of each hearth temperature value in the actual hearth temperature data can be performed according to the following equation (1):
in formula (1), T 0 The average furnace bottom temperature is expressed as the unit of the temperature; n is the number of the first thermocouples, and N is a positive integer greater than 1; t (T) 1 Is the first of the first thermocouples in units of degrees celsius; t (T) N Is the nth thermocouple in degrees celsius.
In the specific implementation process, after the furnace bottom temperature average value is obtained, the ratio of each side wall temperature value in the actual furnace wall temperature data to the furnace bottom temperature average value can be determined, and the variance of the ratio can be determined to obtain the working heat load parameter.
For example, the workload parameter may be calculated according to the following formula (2):
in the formula (2), A I N is the number of second thermocouples, n is a positive integer greater than 1, which is a working thermal load parameter; t (T) 0 The average furnace bottom temperature is expressed as the unit of the temperature; t is t i I is a positive integer greater than 0 in the second thermocouple, and the unit is the temperature; t is t 0 The average of the temperatures detected for all the second thermocouples is given in c.
Step S103: and determining the working state of the target furnace hearth according to the working heat load parameters.
Specifically, the magnitude relation between the working thermal load parameter and the first preset reference threshold and/or the second preset reference threshold can be judged based on the first preset reference threshold and the second preset reference threshold, and then the working state of the target hearth is determined according to the magnitude relation.
In the specific implementation process, if the working thermal load parameter is smaller than or equal to a first preset reference threshold value, determining that the working state of the target furnace hearth is good; if the working thermal load parameter is smaller than or equal to a first preset reference threshold value, determining that the working state of the target furnace hearth is poor; and if the working thermal load parameter is smaller than or equal to the first preset reference threshold value, determining that the working state of the target hearth is poor.
In this embodiment, the first preset reference threshold may be smaller than the second preset reference threshold.
The first preset reference threshold value and the second preset reference threshold value can be set according to the working state of the blast furnace hearth and combined with the actual monitoring condition of the blast furnace hearth. For example, the first preset reference threshold may be set to 1 and the second preset reference threshold may be set to 2.
In addition, in order to facilitate the technicians to quickly judge the current working state of the blast furnace hearth, when the working state of the blast furnace hearth is detected to be good, the technicians can be informed that the hearth does not need maintenance by controlling the corresponding display equipment to display information indicating that the working state of the hearth is good, such as 'good state', or by controlling the information transmission modes such as a state indicator lamp to turn green.
Similarly, when the working state of the blast furnace hearth is detected to be poor, the corresponding display equipment is controlled to display the information representing the gradual deterioration of the working state of the hearth, such as performance reduction, or the information transmission mode of orange color change of the status indicator lamp is controlled, so that a technician is informed that the hearth needs to be subjected to necessary furnace operation adjustment or certain furnace protection measures are adopted.
Similarly, when the working state of the blast furnace hearth is detected to be poor, the corresponding display equipment is controlled to display the information representing the gradual deterioration of the working state of the hearth, such as performance reduction, or the information transmission mode of controlling the state indicator lamp to turn red, and the like, so that a technician is informed of the existence of a large potential safety hazard of the hearth, and a powerful furnace protection means is needed to be adopted to control the operation safety of the hearth, so that the safety accident of the hearth is avoided.
In order to better understand the technical effects achieved by the embodiments of the present invention, the following exemplarily illustrates the method provided by the embodiments of the present invention by applying the method to a 5000-stand blast furnace.
Referring to table 1 and fig. 2, the method for determining the working state of the blast furnace hearth provided by the embodiment of the invention can be used for timely and accurately judging the working state of the hearth by utilizing the working heat load parameter of the blast furnace hearth, and targeted in-furnace operation adjustment and furnace protection measures are carried out to ensure that the working heat load parameter of the hearth is restored to a normal range, so that the blast furnace is stably produced while the safe operation of the blast furnace hearth is ensured.
TABLE 1 working heat load parameters of late stage of blast furnace and corresponding furnace protection measures
After the blast furnace is overhauled, the blast furnace is in an early production stage of the furnace service, and as shown in table 2 and fig. 3, the blast furnace keeps normal enhanced smelting production.
TABLE 2 working thermal load parameters at the early stage of the furnace campaign and corresponding furnace protection measures
Compared with a single monitoring of the temperature of brick lining at a certain point of the hearth and the water temperature difference (or heat flow intensity), the method for determining the working state of the blast furnace hearth provided by the embodiment of the invention can more accurately analyze and determine the various conditions of the circumference of the hearth and timely feed back the working state of the whole hearth.
In addition, compared with the mode of calculating the temperature field distribution of the hearth bottom and the hearth bottom to judge the working state of the hearth, the embodiment of the invention effectively avoids the hysteresis and the distortion caused by the mode calculation, can evaluate the working state of the blast furnace hearth timely and reliably, and provides technical basis for technicians to adjust the blast furnace.
In a second aspect, the present invention provides a blast furnace hearth operating condition determining apparatus according to an embodiment of the present invention, as shown in fig. 4, comprising:
a temperature data acquisition unit 401 for acquiring actual furnace bottom temperature data of the target furnace hearth and acquiring actual furnace wall temperature data of the target furnace hearth;
a thermal load determination unit 402 for determining a working thermal load parameter for the target hearth based on the actual hearth temperature data and the actual furnace wall temperature data;
and the working state determining unit 403 is used for determining the working state of the target hearth according to the working thermal load parameters.
As an alternative embodiment, the temperature data acquisition unit 401 is specifically configured to:
monitoring the bottom temperature of a target furnace hearth through a plurality of first thermocouples to obtain actual furnace bottom temperature data; and monitoring the side wall temperature of the target furnace hearth through a plurality of second thermocouples to obtain actual furnace wall temperature data.
As an alternative embodiment, the thermal load determining unit 402 includes:
and the first calculating subunit is used for carrying out average calculation on each furnace bottom temperature value in the actual furnace bottom temperature data to obtain a furnace bottom temperature average value.
And the second calculating subunit is used for determining the working heat load parameter according to each side wall temperature value and the furnace bottom temperature average value in the actual furnace wall temperature data.
As an alternative embodiment, the second computing subunit is specifically configured to:
and determining the ratio of each side wall temperature value to the average value of the furnace bottom temperature in the actual furnace wall temperature data, and determining the variance of the ratio to obtain the working heat load parameter.
As an alternative embodiment, the operation state determining unit 403 includes:
and the judging subunit is used for judging the magnitude relation between the working thermal load parameter and the first preset reference threshold value and/or the second preset reference threshold value based on the first preset reference threshold value and the second preset reference threshold value.
And the state determining subunit is used for determining the working state of the target furnace hearth according to the size relation.
As an alternative embodiment, the state determining subunit is specifically configured to:
and when the working thermal load parameter is smaller than or equal to a first preset reference threshold value, determining that the working state of the target furnace hearth is good.
And determining that the working state of the target hearth is poor when the working heat load parameter is smaller than or equal to a first preset reference threshold.
And determining that the working state of the target hearth is poor when the working heat load parameter is smaller than or equal to a first preset reference threshold.
Since the method for determining the operating state of the blast furnace hearth described in this embodiment is a method for implementing the device for determining the operating state of the blast furnace hearth according to this embodiment, a person skilled in the art will be able to understand the specific implementation of the method according to this embodiment and various modifications thereof based on the method for determining the operating state of the blast furnace hearth described in this embodiment, and therefore how this method is implemented in this embodiment will not be described in detail herein. The method adopted by the blast furnace hearth working state determining device in the embodiment of the invention is within the scope of protection of the invention as long as the person skilled in the art implements the method.
In a third aspect, based on the same inventive concept, an embodiment of the present invention provides a blast furnace hearth operating state determining apparatus.
Referring to fig. 5, the blast furnace hearth operation state determining apparatus provided by the embodiment of the invention includes: the system comprises a memory 501, a processor 502 and a code stored in the memory and capable of running on the processor 502, wherein the processor 502 implements any one of the embodiments of the blast furnace hearth operating state determining method when executing the code.
Where in FIG. 5 a bus architecture (represented by bus 500), bus 500 may include any number of interconnected buses and bridges, with bus 500 linking together various circuits, including one or more processors, represented by processor 502, and memory, represented by memory 501. Bus 500 may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., as are well known in the art and, therefore, will not be described further herein. Bus interface 505 provides an interface between bus 500 and receiver 503 and transmitter 504. The receiver 503 and the transmitter 504 may be the same element, i.e. a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 502 is responsible for managing the bus 500 and general processing, while the memory 501 may be used to store data used by the processor 502 in performing operations.
In a fourth aspect, based on the same inventive concept, as shown in fig. 6, the present embodiment provides a computer-readable storage medium 600 having stored thereon a computer program 601, which program 601, when executed by a processor, implements any one of the embodiments of the method for determining a hearth operating state of a blast furnace according to the first aspect.
The technical scheme provided by the embodiment of the invention at least has the following technical effects or advantages:
acquiring actual furnace bottom temperature data of a target furnace hearth and actual furnace wall temperature data of the target furnace hearth; based on the actual furnace bottom temperature data and the actual furnace wall temperature data, a working heat load parameter for the target furnace hearth is determined. As the working heat load parameter can represent the temperature fluctuation condition of the blast furnace hearth, compared with the single monitoring of the temperature of a certain point of the hearth or the water temperature difference in the prior art, the working state of the hearth is judged, and the embodiment of the invention can more accurately analyze and judge the temperature condition of the furnace wall of the hearth. Therefore, according to the working heat load parameters, the working state of the target furnace hearth can be more accurately determined, and the accuracy of judging the working state of the blast furnace hearth is improved.
It will be appreciated by those skilled in the art that embodiments of the invention may be provided as a method, system, or computer product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the invention may take the form of a computer product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer instructions. These computer instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (5)
1. A method for determining the operating condition of a blast furnace hearth, comprising:
acquiring actual furnace bottom temperature data of a target furnace hearth and acquiring actual furnace wall temperature data of the target furnace hearth;
determining a working heat load parameter of the target blast furnace hearth based on the actual hearth temperature data and the actual furnace wall temperature data, comprising: carrying out average calculation on each furnace bottom temperature value in the actual furnace bottom temperature data to obtain a furnace bottom temperature average value; determining the working heat load parameter according to each side wall temperature value in the actual furnace wall temperature data and the furnace bottom temperature average value;
wherein said determining said operating heat load parameter based on each sidewall temperature value in said actual furnace wall temperature data and said furnace bottom temperature average value comprises: determining the ratio of each side wall temperature value in the actual furnace wall temperature data to the furnace bottom temperature average value, and determining the variance of the ratio to obtain the working thermal load parameter;
according to the working heat load parameter, determining the working state of the target blast furnace hearth comprises the following steps: judging the magnitude relation between the working thermal load parameter and the first preset reference threshold and/or the second preset reference threshold based on the first preset reference threshold and the second preset reference threshold; and determining the working state of the target blast furnace hearth according to the size relation.
2. The method of claim 1, wherein the target blast furnace hearth is configured with a hearth brick lining, a plurality of first thermocouples being disposed at a bottom of the hearth brick lining, a plurality of second thermocouples being disposed around a sidewall of the hearth brick lining;
the obtaining of the actual furnace bottom temperature data of the target furnace hearth comprises the following steps:
monitoring the bottom temperature of the target blast furnace hearth through the plurality of first thermocouples to obtain the actual hearth temperature data;
the acquiring actual furnace wall temperature data of the target blast furnace hearth comprises:
and monitoring the side wall temperature of the target blast furnace hearth through the second thermocouples so as to obtain the actual furnace wall temperature data.
3. A blast furnace hearth operating condition determining apparatus, comprising:
the temperature data acquisition unit is used for acquiring actual furnace bottom temperature data of the target furnace hearth and acquiring actual furnace wall temperature data of the target furnace hearth;
a thermal load determination unit for determining a working thermal load parameter for the target hearth based on the actual hearth temperature data and the actual furnace wall temperature data, comprising: carrying out average calculation on each furnace bottom temperature value in the actual furnace bottom temperature data to obtain a furnace bottom temperature average value; determining the working heat load parameter according to each side wall temperature value in the actual furnace wall temperature data and the furnace bottom temperature average value;
wherein said determining said operating heat load parameter based on each sidewall temperature value in said actual furnace wall temperature data and said furnace bottom temperature average value comprises: determining the ratio of each side wall temperature value in the actual furnace wall temperature data to the furnace bottom temperature average value, and determining the variance of the ratio to obtain the working thermal load parameter;
the working state determining unit is used for determining the working state of the target blast furnace hearth according to the working thermal load parameters and comprises the following steps: judging the magnitude relation between the working thermal load parameter and the first preset reference threshold and/or the second preset reference threshold based on the first preset reference threshold and the second preset reference threshold; and determining the working state of the target blast furnace hearth according to the size relation.
4. A blast furnace hearth operating condition determining apparatus comprising a memory, a processor and code stored on said memory and executable on said processor, wherein said processor when executing said code implements the method of any one of claims 1-2.
5. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method of any of claims 1-2.
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| SU854997A1 (en) * | 1979-01-31 | 1981-08-15 | Научно-исследовательский и опытно-конструкторский институт автоматизации черной металлургии | Method of temperature control in hearth of blast furnace |
| JP4873788B2 (en) * | 2001-04-09 | 2012-02-08 | 新日本製鐵株式会社 | Detection method of furnace conditions |
| CN101457268B (en) * | 2009-01-07 | 2010-08-18 | 北京首钢自动化信息技术有限公司 | Monitoring, prediction and alarm system for blast furnace hearth and bottom |
| CN203333687U (en) * | 2013-06-21 | 2013-12-11 | 济南伊斯达自控工程有限公司 | Detection system for heat flow of blast furnace |
| CN112179945A (en) * | 2019-07-01 | 2021-01-05 | 上海梅山钢铁股份有限公司 | Device and method for on-line monitoring of furnace wall defects of high-temperature reaction furnace |
| CN110796305A (en) * | 2019-10-28 | 2020-02-14 | 中冶赛迪重庆信息技术有限公司 | Hearth safety early warning method, system, equipment and storage medium |
| CN113265498A (en) * | 2021-05-19 | 2021-08-17 | 陕西龙门钢铁有限责任公司 | Blast furnace type management and control method |
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