CN115537481B - Intelligent blast furnace tapping system for torpedo tank capping of torpedo hot metal mixer car - Google Patents
Intelligent blast furnace tapping system for torpedo tank capping of torpedo hot metal mixer car Download PDFInfo
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- CN115537481B CN115537481B CN202110730450.6A CN202110730450A CN115537481B CN 115537481 B CN115537481 B CN 115537481B CN 202110730450 A CN202110730450 A CN 202110730450A CN 115537481 B CN115537481 B CN 115537481B
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- tapping
- torpedo
- blast furnace
- plan
- ladle
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/006—Automatically controlling the process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/12—Travelling ladles or similar containers; Cars for ladles
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/14—Discharging devices, e.g. for slag
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2300/00—Process aspects
- C21B2300/04—Modeling of the process, e.g. for control purposes; CII
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention relates to an intelligent tapping system for a torpedo ladle of a torpedo hot metal mixer car, which comprises a ladle cover control module, a torpedo hot metal mixer car plan management module, a torpedo hot metal mixer car running control module, a blast furnace state tracking module, a blast furnace tapping plan module, an automatic blast furnace tapping control module and a molten iron metering control module; the tank cover control module comprises: the device is used for controlling the lifting, descending, front-back and left-right translation of the torpedo tank cover; the torpedo hot metal mixer car plan management module: the method is used for compiling and adjusting a dispatching plan of the torpedo hot metal mixer car according to a blast furnace tapping plan and a steel mill production plan; the running control module of the torpedo hot metal mixer car comprises: according to a torpedo car dispatching plan and a blast furnace tapping plan module which are compiled by a torpedo car plan management module, the running of the torpedo car is controlled.
Description
Technical Field
The invention relates to an iron tapping system, in particular to an intelligent iron tapping system for a torpedo ladle capping blast furnace of a torpedo car, and belongs to the field of metallurgical automation control.
Background
The iron works generally produce molten iron through railway or road transportation, and the loss of the temperature of the molten iron can be caused in the transportation process, especially the popularization of the smelting technology for increasing the scrap ratio is adopted in a large scale at present, the reduction of the temperature loss of the molten iron is more important, the indirect reduction of the temperature loss and the pollution to the environment and the consumption of energy sources are reduced, so that the aims of environmental protection, consumption reduction and low cost are fulfilled; in order to reduce the temperature loss, the transportation management of the transportation hot metal ladle is generally enhanced, the turnover of the torpedo ladle is promoted, and the hot metal ladle is capped for heat preservation, so that the temperature loss is reduced.
Disclosure of Invention
The invention aims at the problems existing in the prior art, and provides an intelligent blast furnace tapping system for a torpedo ladle of a torpedo car.
In order to achieve the above purpose, the technical scheme of the invention is that the intelligent tapping system for the torpedo ladle capping of the torpedo hot metal mixer car is characterized by comprising a ladle cap control module, a torpedo hot metal mixer car plan management module, a torpedo hot metal mixer car running control module, a blast furnace state tracking module, a blast furnace tapping plan module, a blast furnace automatic tapping control module and a molten iron metering control module;
the tank cover control module comprises: the device is used for controlling the lifting, descending, front-back and left-right translation of the torpedo tank cover;
the torpedo hot metal mixer car plan management module: the method is used for compiling and adjusting a dispatching plan of the torpedo hot metal mixer car according to a blast furnace tapping plan and a steel mill production plan;
the running control module of the torpedo hot metal mixer car comprises: controlling the running of the hot metal mixer car according to a hot metal mixer car dispatching plan and a blast furnace tapping plan module which are compiled by the hot metal mixer car plan management module;
the blast furnace state tracking module is used for: the method is used for tracking the production state of the blast furnace;
the blast furnace tapping planning module is as follows: according to the plan and actual conditions of the blast furnace production of the iron works and the converter production of the steel works, a blast furnace tapping plan is compiled;
the automatic blast furnace tapping control module comprises: according to the blast furnace tapping plan module, the actual production condition of the blast furnace and the position and condition of the torpedo car, controlling automatic tapping of the blast furnace;
the molten iron metering control module is used for: the device is used for measuring the weight of molten iron in the torpedo tank in the tapping process of the blast furnace.
As an improvement of the invention, the tank cover control module comprises a traveling device, a rotating frame, a traveling driving device and a pitching driving device, wherein the traveling device is connected with the tank cover and is used for traveling back and forth of the tank cover; the walking device is connected with the walking driving device through a rotating turret and is used for left-right rotation of the tank cover; the walking driving device is used for driving the walking device and comprises a driven gear motor and a control program submodule thereof; the pitching driving device is used for controlling the lifting and pitching actions of the tank cover and comprises an electrohydraulic push rod and a control program submodule thereof.
As an improvement of the present invention, the control steps are as follows:
step 1: the blast furnace tapping plan module is used for compiling/adjusting a blast furnace tapping plan according to the production state of a blast furnace and the production plan of a steel mill (from a steelmaking Mes system), wherein the blast furnace tapping plan comprises tapping numbers (tapping sequence numbers), blast furnace base numbers, tapping numbers, planned tapping amount, tapping time, molten iron directions (corresponding to a ladle position of the steel mill, and the base numbers of a converter directly correspond to the ladle bottom technology by adopting a one-ladle bottom technology) and other information;
step 2: the hot metal mixer car plan management module is used for compiling/adjusting a hot metal mixer car dispatching plan according to a blast furnace tapping plan, reasonably arranging turnover of hot metal mixer cars, accelerating the service efficiency of the hot metal mixer cars to the maximum extent and reducing the temperature loss of molten iron in the transportation process; the contents of the plan include; the method comprises the steps of scheduling a torpedo car, mixing the torpedo car, tapping the torpedo car, a blast furnace, a torpedo tank, a torpedo number, a project tapping amount, a tapping time, a molten iron direction and the like;
a torpedo car has a locomotive head, and one locomotive head can be used for carrying one or more trailers (for convenience of description, two trailers are taken here for illustration, the plum steel is generally transported by two cans), and a fixed torpedo can is correspondingly arranged on one trailer, and railway or highway transportation is adopted.
Step 3: when the state tracking module of the blast furnace reaches the state to be tapped according to the state of the blast furnace production, requesting a traveling control module of the torpedo hot metal mixer car in advance for reasonable time, and arranging the corresponding torpedo hot metal mixer car to reach a corresponding blast furnace tapping hole to prepare for tapping; the request content comprises information such as tapping number, blast furnace seat number, tapping time, planned tapping amount, molten iron going direction and the like;
step 4: the torpedo ladle running control module controls the corresponding torpedo ladle mounted on the corresponding torpedo ladle to reach the specified tapping hole iron receiving position of the blast furnace according to the request sent by the blast furnace state tracking module and the torpedo ladle dispatching plan;
step 5: the automatic tapping control module of the blast furnace controls tapping of the blast furnace:
(1) Judging whether the torpedo ladle and the torpedo ladle at the tapping hole meet the schedule according to the dispatching schedule of the torpedo ladle and the tapping schedule of the blast furnace, and alarming if the torpedo ladle and the torpedo ladle do not meet the schedule;
(2) The automatic tapping control module of the blast furnace sends out tapping start instructions according to the production state of the blast furnace;
(3) The tank cover control module moves the tank cover of the torpedo tank forward to reach the position of the torpedo tank cover during tapping;
(4) The automatic tapping control module of the blast furnace controls tapping;
(5) The molten iron metering control continuous module meters the current tapping amount, and when the current tapping amount reaches the planned tapping amount, a tapping ending instruction is sent;
(6) The automatic tapping control module of the blast furnace finishes tapping;
(7) The tank cover control module moves the tank cover of the torpedo tank backwards to reach the position of the torpedo tank opening and cover the tank opening;
(8) Ending the tapping;
(9) Continuing to perform the next tapping of the torpedo ladle, and repeating the steps until the torpedo ladle mounted on the torpedo ladle is completely tapped according to the requirement;
and (3) completing the movement of the tank cover, and reaching the position of the torpedo tank cover during tapping, wherein the steps are as follows:
the walking driving device controls the tank cover to lift upwards;
when the lifting device is lifted in place, the travelling driving device controls the travelling device and the tank cover to travel forwards;
when the running device is in place, the pitching hydraulic cylinder is relieved, the tank cover falls down by the dead weight of the front end of the equipment fulcrum, after falling in place,
and automatically closing the hydraulic pump, and completing the uncovering action.
And (7) finishing capping of the tank cover, and covering the tank opening when the tank cover reaches the position of the torpedo tank opening, wherein the steps are as follows:
the walking driving device controls the tank cover to lift upwards;
when the lifting is in place, the driving motor starts to work, and the traveling driving device controls the traveling device and the tank cover to travel backwards;
when the hydraulic cylinder is retracted in place, the pitching hydraulic cylinder is relieved, the tank cover falls down by means of the dead weight of the front end of the equipment fulcrum, and after the tank cover falls down in place, the hydraulic pump is automatically closed, and the capping action is completed.
Step 6: and the torpedo ladle pouring operation is performed by controlling the running of the torpedo ladle to reach the target position according to the dispatching plan of the torpedo ladle.
Compared with the prior art, the method has the advantages that 1) the scheme improves the turnover rate of the torpedo tank, innovates from a process interface, improves an operation mode, improves operation efficiency, reduces the time of empty tank and heavy tank and the like, and the turnover rate of the torpedo tank is greatly improved by combining the application of the intelligent tapping technology of the scheme. According to statistics, the turnover rate of the Mei Gang torpedo tank is improved from the original lower than 3.0 times/day to more than 4.0 times/day at present, the experimental stage 2021 reaches 4.77 times/day of record creation in 6 months and 17 days, and the current turnover rate is basically maintained to more than 4.25 times/day at present; 2) The automatic tapping of the blast furnace is realized, the tapping time is reduced, the automatic tapping is realized in the experimental stage, and the iron removal time is reduced. Through statistics, the average tapping time of a torpedo ladle (corresponding to 150 tons of converters and adopting one ladle and two ladles) with 300 tons of plum steel is reduced by 2.53 minutes, and the average tapping time of a torpedo ladle (corresponding to 250 tons of converters and adopting one ladle and one ladles) with 250 tons of plum steel is reduced by 3.24 minutes; 3) The technology of the invention reduces the temperature drop of molten iron in the transportation process of the torpedo ladle, realizes automatic tapping, accelerates the tapping speed of a blast furnace, improves the turnover rate of the torpedo ladle, accelerates the transportation time consumption of the torpedo ladle, covers the torpedo ladle, automatically controls the torpedo ladle, and the like, reduces the temperature drop of molten iron, and improves the temperature of molten iron entering the furnace (the temperature of molten iron added into a converter). Through statistics, the temperature of molten iron in 150 tons of plum steel converter (molten iron is added into the converter) is increased from the original temperature of 1320.78 ℃ to the current temperature of 1324.62 ℃, and the temperature of molten iron in 250 tons of converter is increased from the original temperature of 1351.65 ℃ to the current temperature of 1355.02 ℃.
Drawings
FIG. 1 is a schematic diagram of a control device for a torpedo ladle cover;
FIG. 2 is a schematic view of a molten iron transport;
FIG. 3 is a control flow chart of the intelligent tapping technology of the torpedo ladle capped blast furnace of the torpedo car;
FIG. 4 control logic diagram of intelligent tapping technique for torpedo ladle capping of torpedo car
Wherein, 1: trailer mounted on torpedo hot metal mixer car, 2: can lid, 3: running gear, 4: rotating frame, 5: travel drive device, 6: pitch drive device, 7: steel structure support, 8: torpedo tank, 9: movable support, 21: locomotive, 22: trailer, 23: a torpedo tank.
The specific embodiment is as follows:
in order to enhance the understanding of the present invention, the present embodiment will be described in detail with reference to the accompanying drawings.
Example 1: referring to fig. 1-4, an intelligent tapping system for a torpedo ladle capping blast furnace of a torpedo hot metal mixer car comprises a ladle cap control module, a torpedo hot metal mixer car plan management module, a torpedo hot metal mixer car running control module, a blast furnace state tracking module, a blast furnace tapping plan module, an automatic blast furnace tapping control module and a molten iron metering control module;
the tank cover control module comprises: the device is used for controlling the lifting, descending, front-back and left-right translation of the torpedo tank cover;
the torpedo hot metal mixer car plan management module: the method is used for compiling and adjusting a dispatching plan of the torpedo hot metal mixer car according to a blast furnace tapping plan and a steel mill production plan;
the running control module of the torpedo hot metal mixer car comprises: controlling the running of the hot metal mixer car according to a hot metal mixer car dispatching plan and a blast furnace tapping plan module which are compiled by the hot metal mixer car plan management module;
the blast furnace state tracking module is used for: the method is used for tracking the production state of the blast furnace;
the blast furnace tapping planning module is as follows: according to the plan and actual conditions of the blast furnace production of the iron works and the converter production of the steel works, a blast furnace tapping plan is compiled;
the automatic blast furnace tapping control module comprises: according to the blast furnace tapping plan module, the actual production condition of the blast furnace and the position and condition of the torpedo car, controlling automatic tapping of the blast furnace;
the molten iron metering control module is used for: the device is used for measuring the weight of molten iron in the torpedo tank in the tapping process of the blast furnace.
The tank cover control module comprises a traveling device, a rotating frame, a traveling driving device and a pitching driving device, wherein the traveling device is connected with the tank cover and used for traveling back and forth of the tank cover; the walking device is connected with the walking driving device through a rotating turret and is used for left-right rotation of the tank cover; the walking driving device is used for driving the walking device and comprises a driven gear motor and a control program submodule thereof; the pitching driving device is used for controlling the lifting and pitching actions of the tank cover and comprises an electrohydraulic push rod and a control program submodule thereof.
The control steps are as follows:
step 1: the blast furnace tapping plan module is used for compiling/adjusting a blast furnace tapping plan according to the production state of a blast furnace and the production plan of a steel mill (from a steelmaking Mes system), wherein the blast furnace tapping plan comprises tapping numbers (tapping sequence numbers), blast furnace base numbers, tapping numbers, planned tapping amount, tapping time, molten iron directions (corresponding to a ladle position of the steel mill, and the base numbers of a converter directly correspond to the ladle bottom technology by adopting a one-ladle bottom technology) and other information;
step 2: the hot metal mixer car plan management module is used for compiling/adjusting a hot metal mixer car dispatching plan according to a blast furnace tapping plan, reasonably arranging turnover of hot metal mixer cars, accelerating the service efficiency of the hot metal mixer cars to the maximum extent and reducing the temperature loss of molten iron in the transportation process; the contents of the plan include; the method comprises the steps of scheduling a torpedo car, mixing the torpedo car, tapping the torpedo car, a blast furnace, a torpedo tank, a torpedo number, a project tapping amount, a tapping time, a molten iron direction and the like;
as shown in fig. 2, a torpedo car has a locomotive head, and one locomotive head can be provided with one or more trailers (for convenience of description, two trailers are used for illustration, and the plum steel is generally transported in double tanks), and a fixed torpedo tank is corresponding to one trailer for railway or highway transportation.
Step 3: when the state tracking module of the blast furnace reaches the state to be tapped according to the state of the blast furnace production, requesting a traveling control module of the torpedo hot metal mixer car in advance for reasonable time, and arranging the corresponding torpedo hot metal mixer car to reach a corresponding blast furnace tapping hole to prepare for tapping; the request content comprises information such as tapping number, blast furnace seat number, tapping time, planned tapping amount, molten iron going direction and the like;
step 4: the torpedo ladle running control module controls the corresponding torpedo ladle mounted on the corresponding torpedo ladle to reach the specified tapping hole iron receiving position of the blast furnace according to the request sent by the blast furnace state tracking module and the torpedo ladle dispatching plan;
step 5: the automatic tapping control module of the blast furnace controls tapping of the blast furnace:
(1) Judging whether the torpedo ladle and the torpedo ladle at the tapping hole meet the schedule according to the dispatching schedule of the torpedo ladle and the tapping schedule of the blast furnace, and alarming if the torpedo ladle and the torpedo ladle do not meet the schedule;
(2) The automatic tapping control module of the blast furnace sends out tapping start instructions according to the production state of the blast furnace;
(3) The tank cover control module moves the tank cover of the torpedo tank forward to reach the position of the torpedo tank cover during tapping;
(4) The automatic tapping control module of the blast furnace controls tapping;
(5) The molten iron metering control continuous module meters the current tapping amount, and when the current tapping amount reaches the planned tapping amount, a tapping ending instruction is sent;
(6) The automatic tapping control module of the blast furnace finishes tapping;
(7) The tank cover control module moves the tank cover of the torpedo tank backwards to reach the position of the torpedo tank opening and cover the tank opening;
(8) Ending the tapping;
(9) Continuing to perform the next tapping of the torpedo ladle, and repeating the steps until the torpedo ladle mounted on the torpedo ladle is completely tapped according to the requirement;
and (3) completing the movement of the tank cover, and reaching the position of the torpedo tank cover during tapping, wherein the steps are as follows:
the walking driving device controls the tank cover to lift upwards;
when the lifting device is lifted in place, the travelling driving device controls the travelling device and the tank cover to travel forwards;
when the running device is in place, the pitching hydraulic cylinder is relieved, the tank cover falls down by the dead weight of the front end of the equipment fulcrum, after falling in place,
and automatically closing the hydraulic pump, and completing the uncovering action.
And (7) finishing capping of the tank cover, and covering the tank opening when the tank cover reaches the position of the torpedo tank opening, wherein the steps are as follows:
the walking driving device controls the tank cover to lift upwards;
when the lifting is in place, the driving motor starts to work, and the traveling driving device controls the traveling device and the tank cover to travel backwards;
when the hydraulic cylinder is retracted in place, the pitching hydraulic cylinder is relieved, the tank cover falls down by means of the dead weight of the front end of the equipment fulcrum, and after the tank cover falls down in place, the hydraulic pump is automatically closed, and the capping action is completed.
Step 6: and the torpedo ladle pouring operation is performed by controlling the running of the torpedo ladle to reach the target position according to the dispatching plan of the torpedo ladle.
Specific examples: the invention relates to an intelligent blast furnace tapping system for a torpedo ladle of a torpedo car, which comprises the following control modules: the system comprises a tank cover control module, a torpedo car planning management module, a torpedo car running control module, a blast furnace state tracking module, a blast furnace tapping planning module, a blast furnace automatic tapping control module and a molten iron metering control module;
preferably, the tank cover control module comprises a traveling device, a rotating frame, a traveling driving device and a pitching driving device (shown in fig. 1); the travelling device is connected with the tank cover and is used for travelling back and forth of the tank cover; the rotating frame is used for rotating the tank cover left and right; the walking driving device is used for driving the walking device and comprises a driven gear motor and a control program submodule thereof; the pitching driving device is used for controlling the lifting and pitching actions of the tank cover and comprises an electrohydraulic push rod and a control program submodule thereof.
The invention relates to an intelligent blast furnace tapping system for a torpedo ladle of a torpedo car, which comprises the following control steps: step 1: the blast furnace tapping plan module is used for compiling/adjusting a blast furnace tapping plan according to the production state of a blast furnace and the production plan of a converter of a steel mill (from a steelmaking Mes system), and comprises information such as tapping numbers (tapping sequence numbers), blast furnace seat numbers, tapping numbers, planned tapping amounts, tapping times, molten iron directions (corresponding to a ladle position of the steel mill, sometimes adopting a one-ladle bottom technology, directly corresponding to the seat numbers of the converter, adopting a ladle position to carry out ladle operation) and the like, as shown in table 1;
table 1 blast furnace tapping schedule information table
Step 2: the hot metal mixer car plan management module is used for compiling/adjusting a hot metal mixer car dispatching plan according to a blast furnace tapping plan, reasonably arranging turnover of hot metal mixer cars, accelerating the service efficiency of the hot metal mixer cars to the maximum extent and reducing the temperature loss of molten iron in the transportation process; the contents of the plan include; the content comprises information such as a torpedo car dispatching plan number, a torpedo car number, a tapping number, a blast furnace number, a torpedo tank number 1, a torpedo tank number 2, a tapping number 1, a tapping number 2, a planned tapping amount 1, a planned tapping amount 2, a tapping time, a molten iron direction and the like, and is shown in a table 2;
table 2 information table of the schedule of the hot metal mixer car
As shown in fig. 2, a torpedo car has a locomotive head, and one locomotive head can be provided with one or more trailers (two trailers are used herein for illustration convenience), and a fixed torpedo tank is corresponding to one trailer for railway or road transportation; the plum steel adopts railway transportation, and one locomotive head is provided with at most two trailers.
Step 3: when the state tracking module of the blast furnace reaches the state to be tapped according to the state of the blast furnace production, requesting a traveling control module of the torpedo hot metal mixer car in advance for reasonable time, and arranging the corresponding torpedo hot metal mixer car to reach a corresponding blast furnace tapping hole to prepare for tapping; the request content comprises information such as tapping number (tapping sequence number), blast furnace seat number, tapping number, planned tapping amount, tapping time, molten iron direction (ladle position corresponding to a steelworks) and the like;
table 3 blast furnace tapping request information table
Step 4: the torpedo ladle running control module controls the corresponding torpedo ladle mounted on the corresponding torpedo ladle to reach the specified tapping hole iron receiving position of the blast furnace according to the request sent by the blast furnace state tracking module and the torpedo ladle dispatching plan;
step 5: the automatic tapping control module of the blast furnace controls tapping of the blast furnace:
(1) Judging whether the torpedo ladle and the torpedo ladle at the tapping hole meet the schedule according to the dispatching schedule of the torpedo ladle and the tapping schedule of the blast furnace, and alarming if the torpedo ladle and the torpedo ladle do not meet the schedule;
(2) The automatic tapping control module of the blast furnace sends out tapping start instructions according to the production state of the blast furnace;
(3) The tank cover control module moves the tank cover of the torpedo tank forward to reach the position of the torpedo tank cover during tapping;
(4) The automatic tapping control module of the blast furnace controls tapping;
(5) The molten iron metering control continuous module meters the current tapping amount, and when the current tapping amount reaches the planned tapping amount, a tapping ending instruction is sent;
(6) The automatic tapping control module of the blast furnace finishes tapping;
(7) The tank cover control module moves the tank cover of the torpedo tank backwards to reach the position of the torpedo tank opening and cover the tank opening;
(8) Ending the tapping;
(9) Continuing to perform the next tapping of the torpedo ladle, and repeating the steps until the torpedo ladle mounted on the torpedo ladle is completely tapped according to the requirement;
preferably, the step (3) completes the movement of the tank cover, and reaches the position of the torpedo tank cover when tapping, and the steps are as follows:
(1) the walking driving device controls the tank cover to lift upwards;
(2) when the lifting device is lifted in place, the travelling driving device controls the travelling device and the tank cover to travel forwards;
(3) when the running device is in place, the pitching hydraulic cylinder releases pressure, the tank cover falls down by means of the dead weight of the front end of the equipment fulcrum, and after the tank cover falls down in place, the hydraulic pump is automatically closed, and the uncovering action is completed.
Preferably, the capping of the tank cover in the step (7) is completed, and the tank cover reaches the position of the torpedo tank opening to cover the tank opening, and the steps are as follows:
(1) the walking driving device controls the tank cover to lift upwards;
(2) when the lifting is in place, the driving motor starts to work, and the traveling driving device controls the traveling device and the tank cover to travel backwards;
(3) when the hydraulic cylinder is retracted in place, the pitching hydraulic cylinder is relieved, the tank cover falls down by means of the dead weight of the front end of the equipment fulcrum, and after the tank cover falls down in place, the hydraulic pump is automatically closed, and the capping action is completed.
Step 6: and the torpedo ladle pouring operation is performed by controlling the running of the torpedo ladle to reach the target position according to the dispatching plan of the torpedo ladle.
It should be noted that the above-mentioned embodiments are not intended to limit the scope of the present invention, and equivalent changes or substitutions made on the basis of the above-mentioned technical solutions fall within the scope of the present invention as defined in the claims.
Claims (4)
1. The intelligent tapping system for the torpedo ladle capping blast furnace of the torpedo car is characterized by comprising a ladle cap control module, a torpedo car plan management module, a torpedo car running control module, a blast furnace state tracking module, a blast furnace tapping plan module, an automatic blast furnace tapping control module and a molten iron metering control module;
the tank cover control module comprises: the device is used for controlling the lifting, descending, front-back and left-right translation of the torpedo tank cover;
the torpedo hot metal mixer car plan management module: the method is used for compiling and adjusting a dispatching plan of the torpedo hot metal mixer car according to a blast furnace tapping plan and a steel mill production plan;
the running control module of the torpedo hot metal mixer car comprises: controlling the running of the hot metal mixer car according to a hot metal mixer car dispatching plan and a blast furnace tapping plan module which are compiled by the hot metal mixer car plan management module;
the blast furnace state tracking module is used for: the method is used for tracking the production state of the blast furnace;
the blast furnace tapping planning module is as follows: according to the plan and actual conditions of the blast furnace production of the iron works and the converter production of the steel works, a blast furnace tapping plan is compiled;
the automatic blast furnace tapping control module comprises: according to the blast furnace tapping plan module, the actual production condition of the blast furnace and the position and condition of the torpedo car, controlling the automatic tapping of the blast furnace;
the molten iron metering control module is used for: the device is used for measuring the weight of molten iron in the torpedo tank in the tapping process of the blast furnace;
the whole system control steps are as follows:
step 1: the blast furnace tapping plan module is used for preparing and adjusting a blast furnace tapping plan according to the production state of a blast furnace and the production plan of a steel mill, wherein the tapping plan comprises tapping numbers, blast furnace seat numbers, tapping numbers, planned tapping amounts, tapping time and molten iron directions;
step 2: the hot metal mixer car plan management module is used for compiling and adjusting a hot metal mixer car dispatching plan according to a blast furnace tapping plan, reasonably arranging turnover of hot metal mixer cars, accelerating the use efficiency of the hot metal mixer cars to the maximum extent and reducing the temperature loss of molten iron in the transportation process; the planned contents comprise a torpedo car dispatching plan number, a torpedo car number, a tapping number, a blast furnace number, a torpedo tank number I, a torpedo tank number II, a tapping number I, a tapping number II, a planned tapping amount I, a planned tapping amount II, tapping time and molten iron going;
step 3: when the state tracking module of the blast furnace reaches the state to be tapped according to the state of the blast furnace production, requesting a traveling control module of the torpedo hot metal mixer car in advance for reasonable time, and arranging the corresponding torpedo hot metal mixer car to reach a corresponding blast furnace tapping hole to prepare for tapping; the request content comprises a tapping number, a blast furnace seat number, a tapping number, tapping time, planned tapping amount and molten iron going;
step 4: the torpedo ladle running control module controls the corresponding torpedo ladle mounted on the corresponding torpedo ladle to reach the specified tapping hole iron receiving position of the blast furnace according to the request sent by the blast furnace state tracking module and the torpedo ladle dispatching plan;
step 5: the automatic tapping control module of the blast furnace controls tapping of the blast furnace:
step 6: the torpedo ladle iron pouring operation is carried out by controlling the running of the torpedo ladle to reach the target position according to the dispatching plan of the torpedo ladle by the running control module of the torpedo ladle;
wherein, the automatic tapping control module of the blast furnace controls tapping of the blast furnace in the step 5, and concretely comprises the following steps,
(1) Judging whether the torpedo ladle and the torpedo ladle at the tapping hole meet the schedule according to the dispatching schedule of the torpedo ladle and the tapping schedule of the blast furnace, and alarming if the torpedo ladle and the torpedo ladle do not meet the schedule;
(2) The automatic tapping control module of the blast furnace sends out tapping start instructions according to the production state of the blast furnace;
(3) The tank cover control module moves the tank cover of the torpedo tank forward to reach the position of the torpedo tank cover during tapping;
(4) The automatic tapping control module of the blast furnace controls tapping;
(5) The molten iron metering control module continuously meters the current tapping amount, and sends out a tapping ending instruction when the current tapping amount reaches the planned tapping amount;
(6) The automatic tapping control module of the blast furnace finishes tapping;
(7) The tank cover control module moves the tank cover of the torpedo tank backwards to reach the position of the torpedo tank opening and cover the tank opening;
(8) Ending the tapping;
(9) And (5) continuing the next tapping of the torpedo ladle, and repeating the steps (1) - (8) until the torpedo ladle mounted on the torpedo car is completely tapped according to the requirement.
2. The intelligent tapping system for a torpedo ladle capped blast furnace of a torpedo car according to claim 1, wherein the ladle cover control module comprises a travelling device, a rotating frame, a travelling driving device and a pitching driving device, wherein the travelling device is connected with the ladle cover for travelling back and forth of the ladle cover; the walking device is connected with the walking driving device through a rotating frame, and the rotating frame is used for left-right rotation of the tank cover; the walking driving device is used for driving the walking device and comprises a driven gear motor and a control program submodule thereof; the pitching driving device is used for controlling the lifting and pitching actions of the tank cover and comprises an electrohydraulic push rod and a control program submodule thereof.
3. The intelligent tapping system for a torpedo ladle capping blast furnace of a torpedo car as claimed in claim 2, wherein said step (3) is to complete the movement of the ladle cover to the position of the torpedo ladle cover at the tapping, and comprises the following steps:
the walking driving device controls the tank cover to lift upwards;
when the lifting is in place, the walking driving device controls the walking device and the tank cover to walk forwards;
when the running gear is in place, the pitching hydraulic cylinder releases pressure, the tank cover falls down by means of the dead weight of the front end of the equipment fulcrum, and after the tank cover falls down in place, the hydraulic pump is automatically closed, and the uncovering action is completed.
4. The intelligent tapping system for torpedo ladle capping blast furnace for torpedo car as claimed in claim 2, wherein the capping of the ladle cover is completed in the step (7) to the position of the torpedo ladle opening, and the ladle opening is capped as follows:
the walking driving device controls the tank cover to lift upwards;
when the lifting is in place, the driving motor starts to work, and the walking driving device controls the walking device and the tank cover to walk backwards;
when the hydraulic cylinder is retracted in place, the pitching hydraulic cylinder is relieved, the tank cover falls down by means of the dead weight of the front end of the equipment fulcrum, and after the tank cover falls down in place, the hydraulic pump is automatically closed, and the capping action is completed.
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| CN202110730450.6A CN115537481B (en) | 2021-06-29 | 2021-06-29 | Intelligent blast furnace tapping system for torpedo tank capping of torpedo hot metal mixer car |
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| CN202110730450.6A CN115537481B (en) | 2021-06-29 | 2021-06-29 | Intelligent blast furnace tapping system for torpedo tank capping of torpedo hot metal mixer car |
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