CN115044725A - Blast furnace taphole control method, device, equipment and storage medium - Google Patents

Blast furnace taphole control method, device, equipment and storage medium Download PDF

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Publication number
CN115044725A
CN115044725A CN202210834045.3A CN202210834045A CN115044725A CN 115044725 A CN115044725 A CN 115044725A CN 202210834045 A CN202210834045 A CN 202210834045A CN 115044725 A CN115044725 A CN 115044725A
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China
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iron
blast furnace
taphole
real
process parameters
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Inventor
陈生利
郑继平
首五洲
颜伟
***
匡洪锋
马钦田
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SGIS Songshan Co Ltd
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SGIS Songshan Co Ltd
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Priority to CN202210834045.3A priority Critical patent/CN115044725A/en
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B7/00Blast furnaces
    • C21B7/12Opening or sealing the tap holes
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B5/00Making pig-iron in the blast furnace
    • C21B5/006Automatically controlling the process
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B7/00Blast furnaces
    • C21B7/14Discharging devices, e.g. for slag
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B7/00Blast furnaces
    • C21B7/24Test rods or other checking devices

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Blast Furnaces (AREA)

Abstract

The embodiment of the invention discloses a blast furnace taphole control method, a device, equipment and a storage medium. The method comprises the following steps: acquiring process parameters of a blast furnace in an iron smelting process in a target iron tapping period in real time; wherein the process parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of a working iron notch at the smelted time period in the target slag iron cycle; according to the process parameters, opening and blocking control is carried out on an available iron notch in the blast furnace; wherein the available taphole comprises the working taphole and/or a spare taphole. According to the embodiment of the invention, the tapping hole is intelligently controlled to be opened and closed according to real-time parameters in the blast furnace smelting process, the tapping stability is ensured, the digital development of the blast furnace is promoted, the workload of maintenance personnel is reduced, and the smelting standardized flow is optimized.

Description

Blast furnace taphole control method, device, equipment and storage medium
Technical Field
The embodiment of the invention relates to a blast furnace iron smelting technology, in particular to a blast furnace iron notch control method, a device, equipment and a storage medium.
Background
A tapping hole control technology and a device for smelting iron in a blast furnace are always key links of tapping and blocking in the blast furnace smelting and are also the basis for smooth operation of the blast furnace.
In the prior art, under the normal production state of a blast furnace, the blast furnace is restricted by the smoke and dust emitted from a front iron notch, the depth of the iron notch, the iron opening interval time and the like, so that an operator always performs work by experience and gives an instruction to control the iron notch by estimating the amount of iron slag in the blast furnace, the requirement of furnace conditions and artificial senses. Due to different experiences, unstable blast furnace interior or untimely iron notch plugging caused by untimely iron tapping causes gas in the blast furnace to flow out to influence the iron plant environment, thereby bringing potential safety hazards and influencing the smooth production and long-life operation of the blast furnace. Therefore, how to intelligently decide to open and block the tap hole according to the real-time state of the slag iron in the blast furnace hearth is a problem which needs to be solved at present.
Disclosure of Invention
The invention provides a blast furnace taphole control method, a device, equipment and a storage medium, which are used for intelligently controlling the tapping hole to open and close according to real-time parameters in the blast furnace smelting process, ensuring the tapping stability, promoting the blast furnace digital development and optimizing the smelting standardized flow.
In a first aspect, an embodiment of the present invention provides a blast furnace taphole control method, including:
acquiring process parameters of a blast furnace in an iron smelting process in a target iron tapping period in real time; wherein the process parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of a working iron notch at the smelted time period in the target slag iron cycle;
according to the process parameters, opening and blocking control is carried out on an available iron notch in the blast furnace; wherein the available taphole comprises the working taphole and/or a spare taphole.
In a second aspect, an embodiment of the present invention further provides a blast furnace taphole control apparatus, including:
the parameter acquisition module is used for acquiring the process parameters of the blast furnace in the iron smelting process in the target iron tapping period in real time; wherein the process parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of a working iron notch at the smelted time period in the target slag iron cycle;
the taphole control module is used for carrying out plugging control on an available taphole in the blast furnace according to the process parameters; wherein the available taphole comprises the working taphole and/or a spare taphole.
In a third aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes:
one or more processors;
a memory for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the blast furnace taphole control method according to any of the first aspects.
In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the blast furnace taphole control method according to any one of the first aspect.
In the embodiment of the invention, the technological parameters of the blast furnace in the iron smelting process in the target iron tapping period are obtained in real time; wherein the process parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of a working iron notch at the smelted time period in the target slag iron cycle; according to the process parameters, opening and blocking control is carried out on an available iron notch in the blast furnace; wherein the available tapholes comprise the working taphole and/or the idle taphole. According to the scheme, the tapping hole is intelligently controlled to be opened and closed according to real-time parameters in the smelting process of the blast furnace, the tapping stability is guaranteed, the digital development of the blast furnace is promoted, the workload of maintenance personnel is reduced, the smelting standardized flow is optimized, the smooth production and long-life operation of the blast furnace are guaranteed, and the resource waste is avoided.
Drawings
FIG. 1 is a flowchart of a blast furnace taphole control method according to an embodiment of the present invention;
FIG. 2 is a flowchart of a blast furnace taphole control method according to a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a blast furnace taphole control apparatus according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
FIG. 1 is a flowchart of a blast furnace taphole control method according to an embodiment of the present invention, which is applicable to blast furnace smelting, and is particularly applicable to a blast furnace taphole control during smelting. The method can be executed by a blast furnace taphole control device, the blast furnace taphole control device can be realized by adopting a software and/or hardware mode, and the blast furnace taphole control device can be configured in electronic equipment.
A blast furnace taphole control method as shown in fig. 1, the method comprising:
s101, acquiring process parameters of a blast furnace in an iron smelting process in a target iron tapping period in real time; wherein the technological parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of the working iron notch at the smelted time period in the target slag iron cycle.
Wherein, the target iron tapping period can be a preset blast furnace smelting iron tapping period which is determined according to the expected iron smelting amount of a single furnace. The target iron slag cycle is usually in minutes, during which the blast furnace completes the smelting of iron of a preset weight, and the time for smelting iron slag is less than or equal to the target iron slag cycle. The iron-making process may be a continuous process for reducing iron ore to pig iron. The process parameters can be related to different stages in the blast furnace iron smelting process, and can be the iron slag outflow, the real-time air pressure and the real-time air volume of a working iron notch at the smelting time period in the target iron slag tapping period. The slag iron outflow may be the weight of the slag iron obtained by smelting in the target slag iron cycle and may include, but is not limited to, the molten iron outflow and the iron slag outflow, which are discharged from the blast furnace through the tap hole.
Specifically, in the production process of the blast furnace, the outflow quantity of the iron slag flowing out from the tapping hole, the real-time air pressure entering the furnace hearth from the lower air port and the real-time air quantity in the smelting process of the blast furnace in the target iron slag tapping period are obtained through real-time measurement of the electronic weighing equipment.
S102, performing plugging control on an available iron notch in the blast furnace according to process parameters; wherein, the available tapholes comprise working tapholes and/or idle tapholes.
The available taphole may be a taphole that can be used in a blast furnace, and may include a working taphole and/or a spare taphole, and the number of the tapholes is at least one, which is not specifically limited in this embodiment of the present invention. The blocking control can be a control mode of opening or blocking the blast furnace taphole.
Specifically, a large number of simulation tests can be performed in advance to determine the corresponding relationship between various process parameters and the blast furnace available taphole plugging control in the production process of the blast furnace, for example, whether various process parameters meet the set conditions corresponding to various process parameters or not, the blast furnace available taphole plugging control is performed, the blast furnace available taphole is plugged if the various process parameters meet the set conditions, the blast furnace available taphole is opened if any one of the reference conditions is not met, and the like; according to the technological parameters obtained in real time in the production process of the blast furnace, the unblocking control corresponding to the technological parameters is determined, and the available taphole is opened or blocked according to the unblocking control.
It is understood that the embodiment of the present invention is an automatic taphole control flow which is implemented only in the case where at least one taphole has been opened and stably operated, and which is not used at the beginning of the start-up of the blast furnace or at the beginning of the iron making.
According to the technical scheme of the embodiment of the invention, the technological parameters of the blast furnace in the iron smelting process in the target iron tapping period are obtained in real time; wherein the process parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of a working iron notch at the smelted time period in the target slag iron cycle; according to the technological parameters, the opening and the blocking of the available iron notch in the blast furnace are controlled; wherein, the available tapholes comprise working tapholes and/or idle tapholes. According to the embodiment of the invention, the tapping hole is intelligently controlled to open and block according to real-time parameters in the smelting process of the blast furnace, so that the problems of resource waste and incapability of smooth tapping of the blast furnace due to the fact that errors are generated due to insufficient working experience are solved, the tapping stability is ensured, the digital development of the blast furnace is promoted, the working load of maintenance personnel is reduced, the smelting standardized flow is optimized, the smooth production and long-life operation of the blast furnace are ensured, the resource waste is avoided, and a new scheme is provided for the tapping control in the smelting of the blast furnace.
Optionally, the target tapping iron period may be set to a fixed value, or adjusted according to the depth of the tap hole of the working tap hole.
Specifically, the working taphole can be a taphole of a working blast furnace, a discharge hole channel of molten iron, iron slag and the like of the blast furnace, and the number of the working tapholes can be at least one. The depth of the tap hole can be the depth of a blast furnace tap hole, and the proper tap hole depth is the key for discharging and cleaning slag iron and maintaining the tap hole on time; under the condition of excessive tapping, the brick lining in the taphole area is excessively corroded by molten iron, so that the taphole depth is reduced. Determining the output quantity of the iron slag according to the depth of the working iron notch after the blast furnace is put into production, and adjusting the target iron slag tapping period according to the output quantity of the iron slag.
For example, the target depth of the taphole can be determined empirically, and the target tapping iron cycle can be adjusted according to the relationship between the actual taphole depth and the target depth. Collecting the real-time iron notch depth L in the process of opening the iron notch, and shortening the target iron tapping period by 10 minutes when the iron notch depth L is less than the target depth of 100 mm; when the depth L of the iron notch collected in the process of opening the iron notch is less than the target depth 200mm, the corrosion of the molten iron is serious, and the target iron tapping period is shortened by 20 minutes; when the depth L of the iron notch collected in the process of opening the iron notch is less than the target depth 300mm, correspondingly shortening the target iron tapping period by 30 minutes; and when the tap hole depth L acquired in the tap hole opening process is less than the target depth of more than 400mm, sending out a tap hole abnormal signal prompt so that a worker can monitor the tap hole slag tapping process and maintain the tap hole depth. The target depth of 100mm, the target depth of 200mm, the target depth of 300mm and the target depth of 400mm, and the time for shortening the target iron slag tapping period by 10 minutes, 20 minutes and 30 minutes corresponding to each target depth can be set according to working experience by integrating a large number of simulation test results and the like, and the numerical values are not particularly limited.
The method has the advantages that the target slag iron tapping period is dynamically adjusted according to the actual depth of the working iron notch, the stable output of furnace conditions can be kept, the function of the blast furnace is fully exerted, the stable, smooth and safe tapping process is ensured, the condition that the air quantity overflows to cause environmental pollution when the iron notch does not tap clean slag iron can be prevented, potential safety hazards are caused, the service life of the blast furnace is prolonged, and the use cost is reduced.
Example two
Fig. 2 is a flowchart of a blast furnace taphole control method according to the second embodiment of the present invention, and this embodiment will "control the plugging of the taphole available in the blast furnace according to the process parameters" based on the foregoing embodiment; wherein, the available taphole comprises a working taphole and/or an idle taphole, and is further optimized to open and block the available taphole in the blast furnace according to the condition that the process parameters meet the corresponding reference conditions; wherein, the available tapholes comprise working tapholes and/or idle tapholes; the reference conditions include: the difference value between the outflow quantity of the iron slag and the standard production quantity of the iron slag in the current time period is not less than a preset weight threshold value; the difference value between the real-time wind pressure and the standard wind pressure is not greater than a preset wind pressure threshold value; the difference value between the real-time air volume and the standard air volume is not less than a preset air volume threshold value, so that a control mechanism of a blast furnace taphole is perfected. It should be noted that, for parts not described in detail in the embodiments of the present invention, reference may be made to related descriptions of other embodiments, and further description is omitted here.
As shown in fig. 2, the method includes:
s201, acquiring process parameters of a blast furnace in an iron smelting process in a target iron tapping period in real time; wherein the technological parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of the working iron notch at the smelted time period in the target slag iron cycle.
S202, according to the condition that the process parameters meet corresponding reference conditions, the opening and the blocking of the available iron notch in the blast furnace are controlled.
Wherein the reference conditions include: the difference value between the outflow quantity of the iron slag and the standard production quantity of the iron slag in the current time period is not less than a preset weight threshold value; the difference value between the real-time wind pressure and the standard wind pressure is not greater than a preset wind pressure threshold value; and the difference value between the real-time air volume and the standard air volume is not less than a preset air volume threshold value.
The reference condition may be a standard requirement of each process parameter when the blast furnace is subjected to the unblocking control under different working conditions in the normal production process of the blast furnace, which is preset by a worker according to working experience or a large number of tests, and may include, but is not limited to: the difference value between the outflow quantity of the iron slag and the standard production quantity of the iron slag in the current time period is not less than a preset weight threshold value; the difference value between the real-time wind pressure and the standard wind pressure is not greater than a preset wind pressure threshold value; and the difference value between the real-time air volume and the standard air volume is not less than a preset air volume threshold value. The standard throughput may be the weight of product theoretically produced by the raw material charged to the hearth in the target tapped iron cycle under the specified standard operating procedures. The standard wind pressure may be a pressure of wind in the blast furnace wall subjected to the blast furnace, which is computationally determined from blast furnace construction data. The standard air volume may be a standard furnace air flow flux determined from the blast furnace capacity, indicating the hearth ventilation capacity. The preset weight threshold value can be a preset critical value of a difference value between the outflow quantity of the iron slag and the standard production quantity during normal control of tapping of the blast furnace, because the tapping of the blast furnace cannot be completely completed in the smelting process, a certain amount of iron slag remains in the blast furnace, and the preset weight threshold value can be a preset critical value of the amount of the iron slag in the production process. The preset wind pressure threshold value can be a preset limit value of a difference value between real-time wind pressure and standard wind pressure when the tapping of the blast furnace is normally controlled. The preset air volume threshold value can be a preset turning value of a critical state of a difference value between the real-time air volume and the standard air volume when the blast furnace tapping is normally controlled.
Specifically, the reference conditions corresponding to the process parameters when the blast furnace taphole normally works are determined according to the working experience of workers or a large amount of test data. Acquiring the process parameters which are acquired and determined in real time, comparing and determining whether the real-time process parameters meet corresponding reference conditions, and correspondingly controlling the available taphole of the blast furnace to perform unblocking operation according to the comparison result.
For example, a certain time node t1 may be taken as a starting point (generally, the time of theoretically calculating the time of blocking the iron notch of a furnace number of a blast furnace discharging clean hearth slag iron is taken as a starting point, and the function is to ensure that the slag iron stored in the hearth is in a planned standard state), the amount of produced slag iron of the blast furnace in the current time period t1 to t2 is calculated, the amount of produced slag iron may include the amount of molten iron M1 and the amount of iron slag M2 generated by the blast furnace, and the amount of produced slag iron may be calculated according to the weight of production raw materials put into the blast furnace in the time period t1 to t2 and the real-time iron ore charging taste β (iron content percentage in iron ore), and the amount of theoretically generated molten iron and the amount of iron slag in the time period t1 to t2 are calculated; the method comprises the steps of obtaining an actual molten iron amount M3 and an actual molten iron amount M4 according to the fact that an electronic weighing device detects the flow flowing out of an iron notch in real time; and calculating the standard wind pressure P and the standard wind volume V in the time period from t1 to t2 according to blast furnace data. And monitoring the real-time wind pressure Pn and the real-time wind volume Vn of the blast furnace in real time according to the detection equipment. The reference conditions can be set to be (M3+ M4) - (M1+ M2) ≥ 20 tons, Pn-P ≤ 5kpa, and Vn-V ≥ 30M according to the comprehensive test result of working experience 3 Min; wherein the preset weight threshold value is 20 tons, the preset wind pressure threshold value is 5kpa and the preset wind volume threshold value is 30m 3 The/min may be set based on the working experience, blast furnace construction data, and the like. The following steps are carried out according to the preset weight threshold value of 20 tons, the preset wind pressure threshold value of 5kpa and the preset wind volume threshold value of 30m 3 The example of/min is for illustration and should not be construed as a specific limitation on the examples of the present invention.
Optionally, the opening and closing control of the available taphole in the blast furnace according to the condition that the process parameter meets the corresponding reference condition includes: and if the process parameters meet all the reference conditions, controlling to plug the working iron notch.
Specifically, if all the process parameters meet the corresponding reference conditions, the method indicates that the blast furnace has a large tapping amount, and the working iron notch should be blocked to slow down the tapping amount of the blast furnace.
For example, assuming that the A iron notch (namely the aforementioned working iron notch) in the blast furnace is opened and works stably, the total quantity of the slag iron produced by the A iron notch (M3+ M4) - (M1+ M2) is more than or equal to 20 tons, Pn-P is less than or equal to 5kpa, and Vn-V is more than or equal to 30M 3 Min, all the three meet the reference condition. (M3+ M4) - (M1+ M2) is not less than 20 tons, which shows that the difference between the actual iron yield and the theoretical iron yield exceeds the preset critical value of the residual quantity of the slag iron, and the actual iron yield exceeds the theoretical iron yield; so that Pn-P is less than or equal to 5kpa and Vn-V is more than or equal to 30m 3 The reason of/min may be that more iron slag is produced, or other reasons, and generally, the wind pressure is greatly influenced by the wind volume, and the wind volume and the wind pressure are mutually influenced and are complementary. However, when the total amount of iron slag, the air pressure and the air quantity simultaneously meet the reference conditions, the amount of iron produced by the blast furnace is definitely excessive, so that the working A iron notch is blocked.
The tapping condition of the blast furnace is judged according to the real-time process parameters and the reference conditions of the blast furnace, all the satisfied working iron openings are blocked, and the condition that the environment of a steel plant is influenced by gas flowing out of the blast furnace due to too many iron openings which are blocked in time, potential safety hazards are brought, and the stability of the condition of the blast furnace is influenced can be avoided.
Optionally, the method for controlling the opening of the available taphole in the blast furnace according to the condition that the process parameter meets the corresponding reference condition further comprises: and if the process parameter does not meet any one of the reference conditions, controlling to open the idle taphole.
For example, in the real-time process parameters of the A iron notch, the (M3+ M4) - (M1+ M2) among the three reference conditions is more than or equal to 20 tons, Pn-P is less than or equal to 5kpa or Vn-V is more than or equal to 30M 3 If any one of the/min is not satisfied, the current iron tapping amount is not enough, so that the iron notch B in the idle iron notch can be opened, and the iron notch A and the iron notch B can be jointly tapped.
And for the condition that any one of the process parameters does not meet the reference condition, other idle iron openings are opened in time, so that the problem of unstable inside the blast furnace caused by untimely tapping can be solved, and the smooth operation of the blast furnace is guaranteed.
Optionally, after controlling to open the idle taphole, the method further includes: and if the process parameters do not meet at least two of the reference conditions, controlling and increasing the diameter of the pore channel of the newly opened working iron notch.
Specifically, if the process parameters do not meet any two of the reference conditions, the diameter of the pore channel of the newly opened working iron notch is increased by a first length; if the process parameters do not meet all the reference conditions, the diameter of the hole channel of the newly opened working iron notch is increased by a second length; wherein the second length is greater than the first length.
For example, when the tap hole A works normally, the tap hole B is detected to be opened in a non-timely manner, and after the tap hole B is opened, the actual total slag iron amount of the tap holes A and B in a time period from t1 to tn (the tap hole is usually not opened immediately and needs to take a certain time length), such as the molten iron amount M7 and the molten iron amount M8, is calculated; obtaining a theoretical molten iron amount M5 and a theoretical molten iron amount M6 in a time period from t1 to tn; calculating standard wind pressure P1 and standard wind volume V1 in a time period from t1 to tn; and acquiring real-time wind pressure Pn1 and real-time wind volume Vn1 actually detected by the detection equipment. The reference conditions are (M7+ M8) - (M5+ M6) being not less than 20 tons, Pn1-P1 being not more than 5kpa, Vn1-V1 being not less than 30M 3 And/min. If any two new process parameters do not meet the reference conditions, the total amount of the iron notch A and the iron notch B which are cast together is still small, and the diameter of the pore channel of the newly opened working iron notch B is adjusted to be larger by a preset first length; and if the newly obtained process parameters do not meet the reference conditions, the diameter of the hole channel of the newly opened working taphole B is increased by a preset second length, and the second length is greater than the first length, so that the diameter of the hole channel is increased, the taphole B is subjected to more tapping, and the tapping quantity is accelerated.
After the idle taphole is opened, the real-time process parameters are recalculated, whether at least two conditions which do not meet the reference conditions exist in the process parameters is judged according to the newly obtained process parameters, if the diameter of the pore channel of the newly opened working taphole is increased, the problem of untimely tapping can be solved, the tapping quantity of the taphole tends to be normal, and the blast furnace can run stably.
Optionally, after controlling to open the idle taphole, the method further includes: and if the process parameters meet any two of the reference conditions, controlling to block the working iron notch which is opened firstly.
For example, when (M7+ M8) - (M5+ M6) is not less than 20 tons, Pn1-P1 is not more than 5kpa, Vn1-V1 is not less than 30M 3 When any two reference conditions in/min are met, the tapping strategy is indicated to operate according to the expected plan, the tapping quantity gradually returns to normal, and in order to avoid over-correction, the working taphole A which is opened firstly is blocked.
After the idle taphole is opened, the real-time process parameters are recalculated, whether any two conditions meeting the reference conditions exist in the process parameters is judged according to the newly obtained process parameters, if yes, the working taphole which is opened firstly is blocked, and overoverusing can be avoided, so that the condition that the time when the blast furnace is not cast is changed into the condition of excessive casting, and the stability of the blast furnace is influenced.
It can be understood that the technical solution of the embodiment of the present invention can also be applied to the case of a plurality of tapholes, and the control sequence of each taphole can be preset, and the front taphole of any two adjacent tapholes is taken as the a taphole, and the rear taphole of any two adjacent tapholes is taken as the B taphole, so as to sequentially perform the plugging control on each taphole. For example, the iron notch A, the iron notch B and the iron notch C are tapped in turn, so that the positions of the iron notches in the blast furnace are different, if only one iron notch A is opened, the iron notch A can not be tapped, and a large amount of iron slag accumulated on the iron notch B and the iron notch C can not be output. After the A iron notch is blocked, the A iron notch blocking opening can be used as a starting point to carry out blocking control on the B iron notch and the C iron notch in turn, the iron notch with a proper opening position can avoid resource waste, and the running condition of the blast furnace is reasonably arranged.
According to the technical scheme of the embodiment of the invention, the technological parameters of the blast furnace in the iron smelting process in the target iron tapping period are obtained in real time; wherein the technological parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of the working iron notch at the smelted time period in the target slag iron cycle. According to the condition that the technological parameters meet corresponding reference conditions, the available taphole in the blast furnace is subjected to plugging control; wherein the reference conditions include: the difference value between the outflow quantity of the iron slag and the standard production quantity of the iron slag in the current time period is not less than a preset weight threshold value; the difference value between the real-time wind pressure and the standard wind pressure is not greater than a preset wind pressure threshold value; and the difference value between the real-time air volume and the standard air volume is not less than a preset air volume threshold value. According to the scheme, the tapping hole is automatically controlled to open and block according to whether the process parameters acquired in real time meet corresponding reference conditions or not, the problems that errors are generated due to insufficient working experience, so that resource waste is caused, and tapping of the blast furnace is unstable and cannot be carried forward are solved, the furnace condition and the tapping stability of the blast furnace are enhanced, the workload of maintenance personnel is reduced, the digital development of the blast furnace is promoted, the standardized smelting process is optimized, the smooth production and long-life operation of the blast furnace are guaranteed, the resource waste is avoided, and the stable operation of the blast furnace is facilitated.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a blast furnace taphole control device provided by the third embodiment of the invention, and the third embodiment of the invention is applicable to the blast furnace smelting situation, in particular to the blast furnace smelting taphole control situation. The device can be implemented by software and/or hardware, and can be integrated in any equipment for providing the control of the blast furnace taphole, as shown in fig. 3, and the blast furnace taphole control device specifically comprises:
the parameter acquisition module 301 is used for acquiring process parameters of the blast furnace in the iron smelting process in a target iron tapping period in real time; wherein the process parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of a working iron notch at the smelted time period in the target slag iron cycle;
the taphole control module 302 is used for controlling the plugging of the available taphole in the blast furnace according to the process parameters; wherein, the available tapholes comprise working tapholes and/or idle tapholes.
According to the technical scheme of the embodiment of the invention, the technological parameters of the blast furnace in the iron smelting process in the target iron tapping period are obtained in real time through the parameter obtaining module; wherein the process parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of a working iron notch at the smelted time period in the target slag iron cycle; performing opening and blocking control on an available taphole in the blast furnace through a taphole control module according to process parameters; wherein, the available tapholes comprise working tapholes and/or idle tapholes. According to the embodiment of the invention, the tap hole is intelligently controlled to open and block according to real-time parameters in the smelting process of the blast furnace, so that the problems of resource waste and incapability of smooth tapping of the blast furnace due to error caused by insufficient working experience are solved, the tapping stability is ensured, the digital development of the blast furnace is promoted, the working load of maintenance personnel is reduced, the smelting standardized flow is optimized, the smooth production and long-life operation of the blast furnace are ensured, the resource waste is avoided, and a new scheme is provided for the tapping control in the smelting of the blast furnace.
Optionally, the taphole control module 302 includes:
the taphole control unit is used for performing plugging control on an available taphole in the blast furnace according to the condition that the process parameters meet corresponding reference conditions; wherein the reference conditions include: the difference value between the outflow quantity of the iron slag and the standard production quantity of the iron slag in the current time period is not less than a preset weight threshold value; the difference value between the real-time wind pressure and the standard wind pressure is not greater than a preset wind pressure threshold value; and the difference value between the real-time air volume and the standard air volume is not less than a preset air volume threshold value.
Optionally, the taphole plugging control unit includes:
and the working iron notch control subunit is used for controlling and plugging the working iron notch if the process parameters meet all the reference conditions.
Optionally, the taphole plugging control unit further includes:
and the idle iron notch control subunit is used for controlling to open the idle iron notch if the process parameter does not meet any one of the reference conditions.
Optionally, the blast furnace taphole control device comprises:
and the iron notch diameter control subunit is used for controlling and increasing the diameter of the pore channel of the newly opened working iron notch if the process parameters do not meet at least two of the reference conditions after the idle iron notch is controlled and opened.
Optionally, the blast furnace taphole control device further comprises:
and the iron notch plugging control subunit is used for controlling and plugging the working iron notch which is opened firstly after controlling and opening the idle iron notch if the process parameters meet any two of the reference conditions.
Optionally, the blast furnace taphole control device further comprises:
and the iron notch depth adjusting module is used for adjusting the iron slag period of the target iron tapping according to the iron notch depth of the working iron notch.
The blast furnace taphole control device provided by the embodiment of the invention can execute each blast furnace taphole control method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects for executing each blast furnace taphole control method.
Example four
Fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention, and fig. 4 shows a block diagram of an exemplary electronic device 412 suitable for implementing an embodiment of the present invention. The electronic device 412 shown in fig. 4 is only an example and should not bring any limitations to the functionality and scope of use of the embodiments of the present invention.
As shown in fig. 4, the electronic device 412 is in the form of a general purpose computing device. The components of the electronic device 412 may include, but are not limited to: one or more processors or processing units 416, a system memory 428, and a bus 418 that couples the various system components including the system memory 428 and the processing unit 416.
Bus 418 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, micro-channel architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.
Electronic device 412 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by electronic device 412 and includes both volatile and nonvolatile media, removable and non-removable media.
The system memory 428 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)430 and/or cache memory (cache 432). The electronic device 412 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 434 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 4, commonly referred to as a "hard drive"). Although not shown in FIG. 4, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 418 by one or more data media interfaces. System memory 428 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 440 having a set (at least one) of program modules 442 may be stored, for instance, in system memory 428, such program modules 442 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 442 generally perform the functions and/or methodologies of embodiments described herein.
The electronic device 412 may also communicate with one or more external devices 414 (e.g., keyboard, pointing device, display 424, etc.), with one or more devices that enable a user to interact with the electronic device 412, and/or with any devices (e.g., network card, modem, etc.) that enable the electronic device 412 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interfaces 422. Also, the electronic device 412 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet) through the network adapter 420. As shown, network adapter 420 communicates with the other modules of electronic device 412 over bus 418. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 412, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
The processing unit 416 executes various functional applications and data processing by running programs stored in the system memory 428, for example, to implement the blast furnace taphole control method provided by the embodiment of the present invention: acquiring process parameters of a blast furnace in an iron smelting process in a target iron tapping period in real time; wherein the process parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of a working iron notch at the smelted time period in the target slag iron cycle; according to the technological parameters, the opening and the blocking of the available iron notch in the blast furnace are controlled; wherein, the available tapholes comprise working tapholes and/or idle tapholes.
EXAMPLE five
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program (or referred to as computer-executable instructions) is stored, where the computer program, when executed by a processor, implements a blast furnace taphole control method provided in any of the above embodiments of the present invention, where the method includes: acquiring process parameters of a blast furnace in an iron smelting process in a target iron tapping period in real time; wherein the process parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of a working iron notch at the smelted time period in the target slag iron cycle; according to the technological parameters, the opening and the blocking of the available iron notch in the blast furnace are controlled; wherein, the available tapholes comprise working tapholes and/or idle tapholes.
Of course, the embodiment of the present invention provides a storage medium containing computer-readable instructions, and the computer-executable instructions are not limited to the method operations described above, and may also perform related operations in the blast furnace taphole control method provided by the embodiment of the present invention.
It should be noted that, as for the apparatus, the device and the storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and in relevant places, reference may be made to the partial description of the method embodiments.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, and the computer software product may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions to enable a computer device (which may be a robot, a personal computer, a server, or a network device) to execute the method for controlling a blast furnace taphole according to any embodiment of the present invention.
It should be noted that, in the above apparatus, each included module and unit are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by suitable instruction execution devices. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A blast furnace taphole control method is characterized by comprising the following steps:
acquiring process parameters of a blast furnace in an iron smelting process in a target iron tapping period in real time; wherein the process parameters comprise the slag iron outflow, the real-time air pressure and the real-time air volume of a working iron notch at the smelted time period in the target slag iron cycle;
according to the process parameters, opening and blocking control is carried out on an available iron notch in the blast furnace; wherein the available taphole comprises the working taphole and/or a spare taphole.
2. The method according to claim 1, wherein the controlling the opening and closing of the iron notch available in the blast furnace according to the process parameter comprises:
according to the condition that the process parameters meet corresponding reference conditions, carrying out open-close control on an available iron notch in the blast furnace;
wherein the reference condition includes:
the difference value between the outflow quantity of the slag iron and the standard production quantity of the slag iron in the current time period is not less than a preset weight threshold value;
the difference value between the real-time wind pressure and the standard wind pressure is not greater than a preset wind pressure threshold value;
and the difference value between the real-time air volume and the standard air volume is not less than a preset air volume threshold value.
3. The method according to claim 2, wherein the controlling the opening and closing of the iron notch available in the blast furnace according to the condition that the process parameter meets the corresponding reference condition comprises:
and if the process parameters meet all the reference conditions, controlling to plug the working iron notch.
4. The method according to claim 2, wherein the controlling of the opening of the available taphole in the blast furnace according to the condition that the process parameter satisfies the corresponding reference condition comprises:
and if the process parameter does not meet any one of the reference conditions, controlling to open the idle taphole.
5. The method of claim 4, wherein after the controlling opens the idle taphole, the method further comprises:
and if the process parameters do not meet at least two of the reference conditions, controlling and increasing the diameter of the pore channel of the newly opened working iron notch.
6. The method of claim 4, after the controlling opens the idle taphole, the method further comprising:
and if the process parameters meet any two of the reference conditions, controlling to plug the working iron notch which is opened firstly.
7. The method according to any one of claims 1 to 6, wherein the target tapping period is adjusted according to the taphole depth of the working taphole.
8. A blast furnace taphole control device is characterized by comprising:
the parameter acquisition module is used for acquiring the process parameters of the blast furnace in the iron smelting process in the target iron tapping period in real time; the process parameters comprise the slag iron outflow, the real-time air pressure and the real-time air quantity of a working iron notch in the smelted time period in the target slag iron tapping period;
the taphole control module is used for carrying out plugging control on an available taphole in the blast furnace according to the process parameters; wherein the available taphole comprises the working taphole and/or a spare taphole.
9. An electronic device, comprising:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement a blast furnace taphole control method according to any of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements a blast furnace taphole control method according to any of the claims 1-7.
CN202210834045.3A 2022-07-14 2022-07-14 Blast furnace taphole control method, device, equipment and storage medium Pending CN115044725A (en)

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Application publication date: 20220913