CN114659373B - Submerged arc furnace system with automatic lifting electrode and control method thereof - Google Patents
Submerged arc furnace system with automatic lifting electrode and control method thereof Download PDFInfo
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- CN114659373B CN114659373B CN202210287408.6A CN202210287408A CN114659373B CN 114659373 B CN114659373 B CN 114659373B CN 202210287408 A CN202210287408 A CN 202210287408A CN 114659373 B CN114659373 B CN 114659373B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F27D11/10—Disposition of electrodes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/06—Electrodes
- H05B7/07—Electrodes designed to melt in use
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
- H05B7/109—Feeding arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0059—Regulation involving the control of the conveyor movement, e.g. speed or sequences
- F27D2019/0062—Regulation involving the control of the conveyor movement, e.g. speed or sequences control of the workpiece stay in different zones
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0071—Regulation using position sensors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Details (AREA)
Abstract
The application relates to an electrode automatic lifting submerged arc furnace system and a control method thereof, wherein an electrode lifting device can drive an electrode (400) to lift; the monitoring module and the electrode lifting device are electrically connected with the control module, the monitoring module monitors electric parameters of the electrode (400), a first fitting model between the power consumption of the electrode (400) and the loss amount of the electrode (400) is stored in the memory and can run on the first processor, the second processor is used for determining the actual power consumption of the electrode (400) according to the electric parameters, the first processor is used for determining the model loss amount of the electrode (400) according to the actual power consumption and the first fitting model, and the control unit is used for controlling the electrode lifting device to drive the electrode (400) to descend according to the model loss amount. The scheme can solve the problem that three electrodes are difficult to maintain in a three-phase state and the stability of the three-phase electrodes is damaged due to the fact that the electrodes of the submerged arc furnace are mistakenly lifted in the prior art.
Description
Technical Field
The application relates to the technical field of alloy production equipment, in particular to an electrode automatic lifting submerged arc furnace system and a control method thereof.
Background
The submerged arc furnace is also called submerged arc furnace, and when in work, the electrode needs to be inserted into the material layer to a certain depth. When the electrode is used as a carrier for converting electric energy into heat energy and ferrosilicon is smelted in an ore smelting furnace, the lower end of the electrode of the ore smelting furnace discharges and melts raw materials, and a three-phase electrode is commonly adopted at present. With the smelting, the lower end of the electrode is worn, so that the length of the electrode inserted under the material layer is shortened, further, the conductivity of the molten pool is changed, and the actual position of the three-phase electrode needs to be adjusted timely. In the prior art, the current of three electrodes is detected respectively, when the current becomes smaller, the electrode loss condition is described, and the electrode is required to be lowered by the electrode lifting device at the moment, so that the three electrodes are kept in a three-etc (equal current, equal voltage and equal length under the inserted material layer) state, and the furnace can be kept in an optimal smelting state all the time.
However, in the running process of the submerged arc furnace, the distribution state of materials in the furnace is changed frequently, so that the current of the electrode is frequently fluctuated, the electrode current is frequently suddenly increased or suddenly reduced, the electrode lifting device is controlled to be mistakenly started by the frequently fluctuated current, the electrode is lifted under the condition of no loss, the three electrodes are difficult to be kept in a three-phase state, the stability of the three-phase electrode is damaged, and the submerged arc furnace can not be guaranteed to be always in an optimal smelting state.
Disclosure of Invention
Based on this, it is necessary to control the electrode to rise and fall according to the detected electrode current in the prior art, so that the electrode rises and falls by mistake, so that the electrode rises and falls under the condition of no loss, and thus the three electrodes are difficult to keep in a three-etc. state, the stability of the three-phase electrode is destroyed, and the problem that the optimal smelting state can not be ensured all the time in the submerged arc furnace is solved.
An electrode auto-lifting submerged arc furnace system comprising:
the submerged arc furnace comprises an electrode lifting device and an electrode, and the electrode lifting device can drive the electrode to lift;
the control system comprises a monitoring module and a control module, wherein the monitoring module and the electrode lifting device are electrically connected with the control module, the monitoring module monitors the electric parameters of the electrode, and the electric parameters comprise electrode current, electrifying duration and electrode voltage;
the control module comprises a first processor, a second processor, a control unit and a memory, wherein a first fitting model between the power consumption of the electrode and the loss amount of the electrode is stored in the memory and can run on the first processor, the second processor is used for determining the actual power consumption of the electrode according to the electric parameters, the first processor is used for determining the model loss amount of the electrode according to the actual power consumption and the first fitting model, and the control unit is used for controlling the electrode lifting device to drive the electrode to descend according to the model loss amount.
Preferably, the memory further stores a maximum allowable longitudinal loss length of the electrode, the first processor is further configured to determine a preset loss according to the maximum allowable longitudinal loss length, and determine preset power consumption of the electrode according to the preset loss and the first fitting model, where the control unit is configured to control the electrode lifting device to drive the electrode to descend when the actual power consumption is greater than the preset power consumption.
Preferably, the submerged arc furnace further comprises a furnace body, a first clamping device and a second clamping device, the electrode lifting device comprises a first lifting device and a second lifting device, the furnace body comprises a furnace body and a first installation part and a second installation part which are arranged on the furnace body, the first lifting device is arranged on the first installation part and is connected with the first clamping device in a driving mode, the first clamping device can clamp the electrode, the first lifting device drives the electrode to lift through the first clamping device, the second lifting device is arranged on the second installation part and is connected with the second clamping device in a driving mode, the second clamping device can clamp the electrode, and the second lifting device drives the electrode to lift through the second clamping device.
Preferably, the first installation portion and the second installation portion all include first vertical frame, second vertical frame and crossbearer, the both ends of crossbearer respectively with the one end of first vertical frame the one end of second vertical frame links to each other, just the other end of first vertical frame with the other end of second vertical frame all with the stove body links to each other, first elevating gear includes motor and lead screw, the motor set up in the crossbearer, the motor with the lead screw links to each other, just the lead screw deviates from the one end of motor pass the crossbearer with furnace body normal running fit, the one end of first clamping device with the one end of second clamping device all be with lead screw fit portion of lead screw thread fit, just lead screw fit portion is located the crossbearer with between the stove body, lead screw fit portion is provided with the slip direction arch, first vertical frame with the spout has been seted up to the opposite both sides of second vertical frame, the slip direction arch with spout sliding fit.
Preferably, the first lifting device and the second lifting device are both lifting cylinders or linear motors.
A control method of an ore-smelting furnace system with an electrode capable of automatically lifting is applied to the ore-smelting furnace system, and comprises the following steps:
Monitoring the electrical parameters of the electrode, including electrode current, energization time period, and electrode voltage;
determining the actual power consumption of the electrode according to the electrical parameter;
determining a first fitting model between the power consumption of the electrode and the amount of loss of the electrode;
determining a model loss amount of the electrode according to the actual power consumption and the first fitting model, wherein the model loss amount comprises a longitudinal loss length;
and controlling the electrode lifting device to drive the electrode to descend by a first preset distance under the condition that the longitudinal loss length is larger than a first preset value, wherein the first preset distance is equal to the longitudinal loss length.
Preferably, the control method further includes:
determining a maximum allowable longitudinal loss length of the electrode;
determining a preset loss amount according to the maximum allowable longitudinal loss length;
determining preset power consumption of the electrode according to the preset loss and the first fitting model;
and controlling the electrode lifting device to drive the electrode to descend for a second preset distance under the condition that the actual power consumption is larger than the preset power consumption, wherein the second preset distance is equal to the maximum allowable longitudinal loss length.
Preferably, the step of controlling the electrode lifting device to drive the electrode to descend includes:
controlling the second clamping means to open away from the electrode;
the first lifting device is controlled to be started so as to drive the first clamping device to descend, and the first clamping device drives the electrode to descend;
when the descending distance of the electrode is equal to the first preset distance or the second preset distance, controlling the first lifting device to stop running;
and controlling the second clamping device to clamp the electrode again.
Preferably, the step of controlling the electrode lifting device to drive the electrode to descend includes:
the first lifting device and the second lifting device are controlled to be synchronously started so as to drive the first clamping device and the second clamping device to synchronously descend and drive the electrode to descend;
and when the descending distance of the electrode is equal to the first preset distance or the second preset distance, controlling the first lifting device and the second clamping device to synchronously stop running.
Preferably, the control method further includes:
measuring an actual distance between the first clamping device and the second clamping device; controlling the first clamping device to open to leave the electrode when the actual distance is greater than a third preset distance; controlling the first lifting device to start so as to drive the first clamping device to lift; when the rising distance of the first clamping device is equal to the actual distance minus the safety distance, controlling the first lifting device to stop running; controlling the first clamping device to clamp the electrode again; or, controlling the second clamping means to open to leave the electrode; controlling the second lifting device to start so as to drive the second clamping device to ascend; when the rising distance of the second clamping device is equal to a fourth preset distance, controlling the second lifting device to stop running; controlling the second clamping device to clamp the electrode again; controlling the first clamping device to open to leave the electrode; controlling the first lifting device to start so as to drive the first clamping device to lift; when the rising distance of the first clamping device is equal to the fourth preset distance, controlling the first lifting device to stop running; and controlling the first clamping device to clamp the electrode again.
The technical scheme that this application adopted can reach following beneficial effect:
in the submerged arc furnace system with the automatic lifting electrode disclosed by the embodiment of the application, when the submerged arc furnace is used for smelting ferrosilicon, the monitoring module monitors the electric parameters of the electrode in real time, the control module runs in real time to obtain the model loss of the electrode, the model loss of the electrode can be larger and larger along with the smelting, when the model loss of the electrode is larger than a preset specified value, the control unit controls the electrode lifting device to drive the electrode to descend so as to supplement the length of the lower end of the electrode, which is shortened due to the loss, the fluctuation of the actual power of the submerged arc furnace is prevented, so that the smelting process of alloy liquid in the submerged arc furnace is stable, the homogeneity of the alloy liquid is better after smelting, and the stability of the quality of alloy finished products is further ensured. In the process, through judging the actual power consumption (accumulated power consumption) of the electrode for a long time so as to control the lifting of the electrode, even if the submerged arc furnace is in the operation process, the frequent fluctuation of the current of the electrode also has difficult influence on the judgment of the actual power consumption, so that the stability of the actual power consumption for a long time is good, the fluctuation of the electrode can not be controlled due to the frequent sudden rise or sudden fall of the current of the electrode, the mistaken starting of the electrode lifting device can be avoided through the stable actual power consumption, the lifting of the electrode under the condition of no loss is prevented, and therefore, three electrodes can be stably kept in a three-phase state, the stability of the three-phase electrode is ensured, and the submerged arc furnace can be always in the optimal smelting state.
Therefore, in the submerged arc furnace system disclosed by the application, transient parameters of the monitoring electrode in the prior art are adjusted to be the actual power consumption (accumulated power consumption) of the monitoring electrode for a long time, lifting of the electrode is prevented from being controlled through frequent fluctuation, and the electrode lifting device is prevented from being started by mistake due to the fact that the electrode is stable in the actual power consumption for a long time, so that three electrodes can be stably kept in a three-phase state, and stability of the three-phase electrode is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of an automatic lifting structure of a submerged arc furnace with double clamping electrodes according to an embodiment of the present application;
fig. 2 is a schematic diagram of a part of a submerged arc furnace with an automatic lifting structure with double clamping electrodes according to an embodiment of the present application;
fig. 3 is a schematic view of fig. 2 at another viewing angle.
Wherein: furnace body 100, first installation part 110, first vertical frame 111, second vertical frame 112, horizontal frame 113, chute 114, second installation part 120, first clamping device 210, screw rod matching part 211, sliding guide protrusion 212, clamp 213, second clamping device 220, first lifting device 310, motor 311, screw rod 312, second lifting device 320, electrode 400, rotating base 500, base 510, carrier roller 511, turntable 520, tooth hole 521, driving source 530, driving motor 531, driving gear 532, air seal assembly 600, support frame 610, air seal cylinder 620, sealing plate 630, slot 640, feed port 700, safety platform 810, furnace bottom fan 820, air duct 830, safety pool 840.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, an embodiment of the present application discloses an electrode automatic lifting submerged arc furnace system, including a submerged arc furnace and a control system, wherein:
the submerged arc furnace comprises an electrode lifting device and an electrode 400, wherein the electrode lifting device can drive the electrode 400 to lift;
the control system comprises a monitoring module and a control module, wherein the monitoring module and the electrode lifting device are electrically connected with the control module, and the monitoring module monitors the electric parameters of the electrode 400, wherein the electric parameters comprise electrode current, electrifying duration and electrode voltage;
the control module comprises a first processor, a second processor, a control unit and a memory, wherein a first fitting model between the power consumption of the electrode 400 and the loss amount of the electrode 400 is stored in the memory and can run on the first processor, the first fitting model can determine the relation between the power consumption and the loss amount of the electrode 400 and is generally positive correlation, the first fitting model can be formed by fitting a plurality of groups of test data through a computer, simply, the first fitting model can be a fitting curve formed by fitting a plurality of groups of test data, and the power consumption and the loss amount value of the electrode 400 corresponds to any position on the fitting curve, so that the other fitting model can be obtained under the condition that any one of the power consumption and the loss amount is determined.
The second processor is configured to determine actual power consumption of the electrode 400 according to the electrical parameter, specifically, the electrical parameter monitored at each time point obtains the actual power consumption of the electrode 400 by means of integral calculation, where the actual power consumption is the accumulated power consumption, the first processor is configured to determine a model loss amount of the electrode 400 according to the actual power consumption and the first fitting model, and the control unit is configured to control the electrode lifting device to drive the electrode 400 to descend according to the model loss amount, and sequentially circulate, and after each time the electrode lifting device is controlled to drive the electrode 400 to descend, the control module recalculates the actual power consumption of the electrode 400.
In the submerged arc furnace system with the automatic lifting of the electrode, when the submerged arc furnace is used for smelting ferrosilicon, the monitoring module monitors the electric parameters of the electrode 400 in real time, the control module operates in real time to obtain the model loss of the electrode 400, the model loss of the electrode 400 is larger and larger along with the smelting, when the model loss of the electrode 400 is larger than a preset specified value, the control unit controls the electrode lifting device to drive the electrode 400 to descend so as to supplement the length of the lower end of the electrode 400, which is shortened due to the loss, the fluctuation of the actual power of the submerged arc furnace is prevented, the alloy liquid smelting process in the submerged arc furnace is stable, the homogeneity of the alloy liquid after smelting is better, and the stability of the quality of an alloy finished product is further ensured. In the above process, through the judgment of the actual power consumption (accumulated power consumption) of the electrode 400 for a long time, so as to control the lifting of the electrode 400, even if the submerged arc furnace is in operation, the frequent fluctuation of the current of the electrode 400 also has a difficult influence on the judgment of the actual power consumption, so that the stability of the actual power consumption for a long time is good, the fluctuation of the electrode 400 can not be controlled due to the frequent sudden rise or sudden fall of the current of the electrode 400, the mistaken starting of the electrode lifting device can be avoided through the stable actual power consumption, the lifting of the electrode 400 can be prevented under the condition of no loss, and thus three electrodes can be stably kept in a three-phase state, the stability of the three-phase electrode is ensured, and the submerged arc furnace can be always in an optimal smelting state.
Therefore, in the submerged arc furnace system disclosed by the application, transient parameters of the monitoring electrode 400 in the prior art are adjusted to be actual power consumption (accumulated power consumption) of the monitoring electrode 400 for a long time, lifting of the electrode is prevented from being controlled by frequent fluctuation current, and the electrode 400 is stable in actual power consumption for a long time, so that false starting of an electrode lifting device is avoided, three electrodes can be stably kept in a three-phase state, and stability of the three-phase electrode is guaranteed.
Since the first fitting model is capable of determining that the relationship between the power consumption and the amount of wear of the electrode 400 is generally positive, in an alternative embodiment, the memory may also store therein a maximum allowable longitudinal wear length of the electrode 400, the maximum allowable longitudinal wear length being referred to as: during the use of the electrode 400, the maximum distance of the allowable deviation of the electrode 400 in the longitudinal direction can be exceeded, and the actual power of the submerged arc furnace can fluctuate after the maximum distance is exceeded, so that the smelting process of the alloy liquid in the submerged arc furnace is unstable. The first processor may be further configured to determine a preset loss according to the maximum allowable longitudinal loss length, and determine preset power consumption of the electrode 400 according to the preset loss and the first fitting model, where the control unit is configured to control the electrode lifting device to drive the electrode 400 to descend when the actual power consumption is greater than the preset power consumption. That is, the preset power consumption is determined according to the maximum distance of the allowable deviation of the electrode 400 in the longitudinal direction, that is, the maximum allowable power consumption of the electrode 400 is determined, and when the actual power consumption of the electrode 400 exceeds the maximum allowable power consumption, it is indicated that the loss of the electrode 400 exceeds the maximum allowable longitudinal loss length, and then the electrode 400 is required to be lowered for adjustment.
The embodiment can also avoid the lifting of the current control electrode through frequent fluctuation, and the electrode 400 is stable in long-time practical power consumption, so as to avoid the false start of the electrode lifting device, thereby enabling the three electrodes to be stably kept in the three-phase state and ensuring the stability of the three-phase electrodes. And the electrode 400 is controlled to be lifted through the model loss and preset power consumption, so that the false start of the electrode lifting device can be further avoided, and the stability of the submerged arc furnace system is improved.
It should be noted that, the maximum allowable longitudinal loss length and the maximum allowable power consumption of the electrode 400 refer to the loss length and the actual power during one adjustment period of lifting of the electrode 400, and do not refer to the loss length and the actual power of the electrode 400 during the whole life cycle or the whole smelting period of one smelting of the submerged arc furnace.
As described above, the submerged arc furnace includes the electrode elevating means and the electrode 400, and optionally, the submerged arc furnace may further include the furnace body 100, the first clamping means 210 and the second clamping means 220, the electrode elevating means may include the first elevating means 310 and the second elevating means 320, the furnace body 100 includes the furnace body and the first installation part 110 and the second installation part 120 provided on the furnace body, the first elevating means 310 is provided at the first installation part 110 and is in driving connection with the first clamping means 210, the first clamping means 210 may clamp the electrode 400, and the first elevating means 310 drives the electrode 400 to elevate through the first clamping means 210, the second elevating means 320 is provided at the second installation part 120 and is in driving connection with the second clamping means 220, the second clamping means 220 may clamp the electrode 400, and the second elevating means 320 drives the electrode 400 to elevate through the second clamping means 220.
As the smelting proceeds, after the electrode 400 descends several times, the descending strokes of the first lifting device 310 and the second lifting device 320 may reach the maximum, so that the first lifting device 310 and the second lifting device 320 cannot continue to drive the electrode 400 to descend, at this time, the second clamping device 220 is opened to leave the electrode 400, then the second lifting device 320 drives the second clamping device 220 to ascend, after the second lifting device 320 reaches the minimum stroke, the second clamping device 220 clamps the electrode 400 again, then the first clamping device 210 is opened to leave the electrode 400, the first lifting device 310 drives the first clamping device 210 to ascend, and after a certain distance of ascent, the first clamping device 210 clamps the electrode 400 again. Through the adjustment of the process, the electrode 400 can be driven to descend continuously at the maximum position of the first lifting device 310 and the second lifting device 320, which is away from the descending stroke, so that the lifting adjustment of the electrode 400 by the submerged arc furnace is more convenient, and the practicability and the operability of the submerged arc furnace are improved.
Further, the submerged arc furnace disclosed in the application can further comprise a cooling fan and a cooling pipeline, wherein the cooling fan is fixed on the external frame, one end of the cooling pipeline is connected with the cooling fan, the other end of the cooling pipeline is connected with a wind distributor, the wind distributor is arranged above the first clamping device 210 and the second clamping device 220, and an air outlet of the wind distributor is downwards arranged so that wind blown out by the wind distributor flows towards the inside of the furnace body 100. The cooling fan can cool the surface of the electrode 400, the alloy liquid around the electrode 400 and the first clamping device 210 and the second clamping device 220, so that the cooling is realized at the highest speed, the stable and normal temperature of the electrode 400 is ensured, and the service life of the electrode is prolonged.
The first lifting device 310 may be of various kinds, and in an alternative embodiment, the first lifting device 310 may be a lift cylinder or a linear motor. Of course, the second lifting device 320 may be a lifting cylinder or a linear motor. The jacking cylinder or the linear motor has mature technology, reliable driving, low failure rate, low price and convenient setting.
In another alternative embodiment, the first mounting portion 110 includes a first vertical frame 111, a second vertical frame 112 and a horizontal frame 113, two ends of the horizontal frame 113 are respectively connected with one end of the first vertical frame 111 and one end of the second vertical frame 112, the other end of the first vertical frame 111 and the other end of the second vertical frame 112 are both connected with the furnace body, the first lifting device 310 includes a motor 311 and a screw rod 312, the motor 311 is disposed on the horizontal frame 113, the motor 311 is connected with the screw rod 312, one end of the screw rod 312, which is away from the motor 311, passes through the horizontal frame 113 and is in running fit with the furnace body 100, one end of the first clamping device 210 is a screw rod matching portion 211 in threaded fit with the screw rod 312, the screw rod matching portion 211 is located between the horizontal frame 113 and the furnace body, the screw rod matching portion 211 is provided with sliding guide protrusions 212, sliding grooves 114 are formed in two opposite sides of the first vertical frame 111 and the second vertical frame 112, and the sliding guide protrusions 212 are in sliding fit with the sliding grooves 114.
The embodiment of the present application discloses a specific structure for driving the first clamping device 210 to lift, that is, specifically discloses a first lifting device 310, and of course, the second lifting device 320 may also adopt the above structure. The mode of adopting lead screw 312 can comparatively accurately control the decline distance of electrode 400, prevent that electrode 400 from descending too much or decline not in place to can accurately supply electrode 400 lower extreme because of the preset length that the loss shortens, make electrode 400 more stable discharge melt the raw materials, further prevent that the actual power of submerged arc furnace from can appearing undulantly, so that the alloy liquid smelting process in the submerged arc furnace is more stable, and the homogeneity of alloy liquid is better after the smelting, and then guarantees the stability of alloy finished product quality.
As described above, the first and second clamping devices 210 and 220 may clamp the electrode 400 and may be opened to release the electrode 400, and in particular, the first and second clamping devices 210 and 220 may each have a clamp 213 mounted at one end thereof, the clamp 213 being two open and close members, and the clamp 213 may clamp the electrode 400. The clamping of the electrode 400 is achieved by two opening and closing members.
The air distributor can be a hollow circular ring and is positioned above the clamp 213, and a plurality of air outlets are formed on the lower end surface of the hollow circular ring. In this scheme, the cold air surrounds the circumference outer wall of the electrode 400 and blows from top to bottom, so that the temperature born by the outer wall of the electrode 400 is uniform, the downward blown air blows on the alloy liquid surface and diffuses to the periphery, thereby blowing away the temperature of the alloy liquid taking the electrode 400 as the center, diffusing to the periphery, and specifically accelerating the temperature reduction of the alloy liquid around the electrode 400, thereby quickly cooling the end part of the electrode 400 and avoiding abnormal burning loss.
Further, the submerged arc furnace disclosed by the application can further comprise a rotating base 500, the rotating base 500 is arranged at the bottom of the furnace body, the rotating base 500 comprises a base 510, a rotary table 520 and a plurality of driving sources 530, the base 510 is fixed on a foundation, a plurality of carrier rollers 511 are arranged on the upper surface of the base 510, the carrier rollers 511 are in rolling fit with the base 510, the upper end face of each carrier roller 511 is higher than the upper surface of the base 510, the rotary table 520 is a circular disk body, the bottom of the furnace body is connected with the rotary table 520, the rotary table 520 is arranged above the base 510, the bottom of the rotary table 520 is in rolling fit with the carrier rollers 511, a plurality of tooth holes 521 are formed in the circumferential outer wall of the rotary table 520, the tooth holes 521 are uniformly distributed on the outer wall of the rotary table 520 at equal intervals, the driving sources 530 comprise a driving motor 531 and driving gears 532, the driving motors 531 are fixedly arranged, the driving gears 532 are in transmission connection with the driving motors 531, the driving gears 532 are in meshed connection with the tooth holes 521, and are used for driving the rotary table 520 to rotate, so that the furnace body 100 is driven to rotate, the alloy liquid in the submerged arc furnace is enabled to have better homogeneity, and alloy liquid in the submerged arc furnace is ensured to be stable in smelting process, and quality of alloy liquid is ensured.
Further, the submerged arc furnace disclosed in the application can further comprise a furnace bottom air cooling component, the furnace bottom air cooling component comprises a safety platform 810, a furnace bottom fan 820 and an air channel 830, the safety platform 810 is a platform higher than the rotary base 500 and surrounds the rotary base 500, a gap is formed between the safety platform 810 and the rotary base 500 to form a safety pool 840, the furnace bottom fan 820 is arranged on the outer side of the safety platform 810, one end of the air channel 830 is connected with the furnace bottom fan 820, the other end of the air channel 830 penetrates through the safety platform 810 and is connected with the safety pool 840, the height of the end of the air channel 830 is flush with the height of the rotary disc 520, the rotary disc 520 is a circular ring piece fixed on the furnace body, and the tooth holes 521 are formed by penetrating through the inner wall and the outer wall of the rotary disc 520.
Cold air blown out by the furnace bottom fan 820 enters the safety pool 840 through the air duct 830 and is opposite to the tooth holes 521, the tooth holes 521 on the periphery of the rotary table 520 are communicated, the blown cold air can pass through the other tooth holes 521, and the safety pool 840 surrounds the rotary table 520 to form cold air flow which is diffused upwards from the bottom of the furnace body or cold air flow which is communicated with the bottom of the furnace body, so that the air cooling of the bottom of the furnace body 100 and the furnace shell is realized. Whether the turntable 520 at the bottom of the furnace body 100 rotates or not, cold air can flow through. The tooth holes 521 of the rotary table 520 can be used as a rotary driving part of the furnace body 100 and also can be used as an air cooling part, so that two purposes are achieved.
While at the same time. The alloy liquid smelted in the furnace body 100 is high-temperature liquid, once leaked, the alloy liquid can flow to the periphery in a spreading way, and cause great harm to surrounding people or objects, so the safety pool 840 is arranged, the safety pool 840 is a space surrounding the periphery of the furnace body 100, the bottom of the safety pool 840 is deeper, a larger accommodating space is provided, and even if leakage occurs, the high-temperature liquid can flow into the safety pool 840 to be collected, and cannot spread everywhere. The safety tank 840 can form cold air flow which diffuses upwards from the bottom of the furnace body, and can collect leaked high-temperature liquid, thereby achieving two purposes.
In an alternative embodiment, the submerged arc furnace disclosed in the application may further include a gas seal assembly 600, at least one feeding port 700 is provided on a side wall of the furnace body, the gas seal assembly 600 is disposed at the feeding port 700, the gas seal assembly 600 includes a support frame 610, a gas seal cylinder 620 and a sealing plate 630, a slot 640 is provided on a side wall around the feeding port 700, the support frame 610 is arranged above the feeding port 700, a cylinder seat of the gas seal cylinder 620 is fixed on the support frame 610, a piston end of the gas seal cylinder 620 is connected with the sealing plate 630, and the sealing plate 630 is inserted into the slot 640.
The arrangement of the feeding port 700 enables the feeding chute to be lapped on the feeding port 700 during feeding, thereby reducing the height of the chute, reducing the height of materials entering alloy liquid, reducing the splashing of the alloy liquid, slowing down the abnormal disturbance of the alloy liquid and avoiding the impact of the alloy liquid and the materials on the electrode 400. The sealing plate 630 is spliced from top to bottom, and the air seal cylinder 620 compresses the sealing plate 630 from the upper side, so that the problem that the sealing plate 630 seals the feeding hole 700 to be not tight is avoided.
Further, the feeding ports 700 may be three openings uniformly distributed around the furnace body, and the heights of the three feeding ports 700 are sequentially reduced. For example, the heights of the bottoms of the three feeding openings 700 are respectively 0.5m, 0.8 m and 1.2 m from the opening of the furnace body 100, so that the heights of the chute lap joint feeding openings 700 are different, when materials in the furnace body 100 are small or just begin to feed, the bottommost feeding opening 700 can be selected for feeding, so that the falling height difference of the materials is reduced, the mechanical crush injury to the furnace body 100 is reduced, when the alloy liquid height in the furnace body 100 is higher, namely in the smelting process, different feeding openings 700 can be selected for feeding according to the liquid level height, and the situation that the liquid level is splashed due to too large height difference or the material is too close to the liquid level is avoided.
Further, the furnace body can be a nine-sided furnace body formed by connecting nine planes side by side. When the furnace body 100 integrally rotates, an included angle is formed between two adjacent plane side walls, the alloy liquid in the furnace body 100 can be driven by the included angle, the liquid is promoted to regularly flow along the inner wall of the furnace body 100, so that the homogeneity of the alloy liquid in the submerged arc furnace is good, the smelting process of the alloy liquid in the submerged arc furnace can be ensured to be stable, and the stability of the quality of an alloy finished product is ensured.
The embodiment of the application discloses a control method of an electrode automatic lifting submerged arc furnace system, wherein the submerged arc furnace system is the submerged arc furnace system described in the embodiment, and the control method comprises the following steps:
s110, monitoring electrical parameters of the electrode 400, wherein the electrical parameters comprise electrode current, energization time and electrode voltage;
s120, determining the actual power consumption of the electrode 400 according to the electrical parameters;
s130, determining a first fitting model between the power consumption of the electrode 400 and the loss amount of the electrode 400;
s140, determining a model loss amount of the electrode 400 according to the actual power consumption and the first fitting model, wherein the model loss amount comprises a longitudinal loss length;
and S150, controlling the electrode lifting device to drive the electrode 400 to descend by a first preset distance when the longitudinal loss length is larger than a first preset value, wherein the first preset distance is equal to the longitudinal loss length.
In the control method of the submerged arc furnace system for automatically lifting the electrode, when ferrosilicon is smelted by the submerged arc furnace, firstly, electric parameters of the electrode 400 are monitored in real time, then, the actual power consumption of the electrode 400 is determined according to the electric parameters, then, a first fitting model between the power consumption of the electrode 400 and the loss amount of the electrode 400 is determined, then, the model loss amount of the electrode 400 is determined according to the actual power consumption and the first fitting model, the model loss amount comprises a longitudinal loss length, and under the condition that the longitudinal loss length is larger than a first preset value, the electrode lifting device is controlled to drive the electrode 400 to descend by a first preset distance, and the first preset distance is equal to the longitudinal loss length.
Along with the smelting, the model loss of the electrode 400 is larger and larger, when the model loss of the electrode 400 is larger than a preset specified value, the electrode lifting device is controlled to drive the electrode 400 to descend so as to supplement the shortened length of the lower end of the electrode 400 due to loss, and the fluctuation of the actual power of the submerged arc furnace is prevented, so that the smelting process of alloy liquid in the submerged arc furnace is stable, the homogeneity of the alloy liquid after smelting is better, and the stability of the quality of alloy finished products is further ensured. In the above process, through the judgment of the actual power consumption (accumulated power consumption) of the electrode 400 for a long time, so as to control the lifting of the electrode 400, even if the submerged arc furnace is in operation, the frequent fluctuation of the current of the electrode 400 also has a difficult influence on the judgment of the actual power consumption, so that the stability of the actual power consumption for a long time is good, the fluctuation of the electrode 400 can not be controlled due to the frequent sudden rise or sudden fall of the current of the electrode 400, the mistaken starting of the electrode lifting device can be avoided through the stable actual power consumption, the lifting of the electrode 400 can be prevented under the condition of no loss, and thus three electrodes can be stably kept in a three-phase state, the stability of the three-phase electrode is ensured, and the submerged arc furnace can be always in an optimal smelting state.
Since the first fitting model is capable of determining that the relationship between the power consumption and the amount of loss of the electrode 400 is generally positive, in an alternative embodiment, the control method may further comprise:
s210, determining the maximum allowable longitudinal loss length of the electrode 400;
s220, determining a preset loss amount according to the maximum allowable longitudinal loss length;
s230, determining preset power consumption of the electrode 400 according to the preset loss and the first fitting model;
and S240, controlling the electrode lifting device to drive the electrode 400 to descend by a second preset distance when the actual power consumption is larger than the preset power consumption, wherein the second preset distance is equal to the maximum allowable longitudinal loss length.
In this embodiment, the maximum allowable longitudinal loss length of the electrode 400 is determined first, then the preset loss amount is determined according to the maximum allowable longitudinal loss length, then the preset power consumption of the electrode 400 is determined according to the preset loss amount and the first fitting model, and the electrode lifting device is controlled to drive the electrode 400 to descend under the condition that the actual power consumption is larger than the preset power consumption. That is, the preset power consumption is determined according to the maximum distance of the allowable deviation of the electrode 400 in the longitudinal direction, that is, the maximum allowable power consumption of the electrode 400 is determined, and when the actual power consumption of the electrode 400 exceeds the maximum allowable power consumption, it is indicated that the loss of the electrode 400 exceeds the maximum allowable longitudinal loss length, and then the electrode 400 is required to be lowered for adjustment.
The embodiment can also avoid the lifting of the current control electrode through frequent fluctuation, and the electrode 400 is stable in long-time practical power consumption, so as to avoid the false start of the electrode lifting device, thereby enabling the three electrodes to be stably kept in the three-phase state and ensuring the stability of the three-phase electrodes. And the electrode 400 is controlled to be lifted through the model loss and preset power consumption, so that the false start of the electrode lifting device can be further avoided, and the stability of the submerged arc furnace system is improved.
Optionally, the step of controlling the electrode elevating means to drive the electrode 400 to descend may include:
s310, controlling the second clamping device 220 to open to leave the electrode 400;
s320, controlling the first lifting device 310 to start so as to drive the first clamping device 210 to descend, and the first clamping device 210 drives the electrode 400 to descend;
s330, when the descending distance of the electrode 400 is equal to the first preset distance or the second preset distance, controlling the first lifting device 310 to stop running;
s340, the second clamping device 220 is controlled to re-clamp the electrode 400.
In this embodiment, the second lifting device 320 is not required to be started to drive the second clamping device 220 to descend, only the first lifting device 310 is required to be started to drive the first clamping device 210 to descend, and the first clamping device 210 drives the electrode 400 to descend, so that the control method is simple and reliable. In a specific control process, the second clamping device 220 is opened and leaves the electrode 400, at this time, the first clamping device 210 continues to clamp the electrode 400, and the first lifting device 310 is started to drive the first clamping device 210 to descend, because at this time, the first clamping device 210 continues to clamp the electrode 400, so as to drive the electrode 400 to descend and descend by a preset length to supplement the preset length shortened by loss at the lower end of the electrode 400, after the electrode 400 descends, the second clamping device 220 clamps the electrode 400 again, so that the electrode 400 stably discharges and melts the raw materials, fluctuation of the actual power of the submerged arc furnace is prevented, the smelting process of alloy liquid in the submerged arc furnace is stable, the homogeneity of the alloy liquid after smelting is better, and the stability of the quality of alloy finished products is further ensured.
As the smelting proceeds, after the electrode 400 descends for several times, the descending stroke of the first lifting device 310 may reach the maximum position, so that the first lifting device 310 and the second lifting device 320 cannot continue to drive the electrode 400 to descend. Further, the control method may further include:
s410, measuring the actual distance between the first clamping device 210 and the second clamping device 220;
s420, controlling the first clamping device 210 to open so as to leave the electrode 400 when the actual distance is greater than a third preset distance;
s430, controlling the first lifting device 310 to start so as to drive the first clamping device 210 to lift;
s440, when the rising distance of the first clamping device 210 is equal to the actual distance minus the safety distance, controlling the first lifting device 310 to stop running;
s450, the first clamping device 210 is controlled to re-clamp the electrode 400.
Through the adjustment of the process, the first lifting device 310 is separated from the maximum position of the descending stroke, so that the first lifting device 310 can continuously drive the electrode 400 to descend, the lifting adjustment of the electrode 400 by the submerged arc furnace is more convenient, and the practicability and operability of the control method are improved.
As described above, when the lower end of the electrode 400 is shortened by more than a predetermined length due to the loss, the second clamping means 220 needs to be opened to be separated from the electrode 400, and the operation is complicated. To simplify the above process, in an alternative embodiment, the step of controlling the electrode elevating means to drive the electrode 400 to descend may include:
S510, the first lifting device 310 and the second lifting device 320 are controlled to be synchronously started so as to drive the first clamping device 210 and the second clamping device 220 to synchronously descend and drive the electrode 400 to descend;
s520, when the descending distance of the electrode 400 is equal to the first preset distance or the second preset distance, the first lifting device 310 and the second clamping device 220 are controlled to stop operating synchronously.
In the above process, the second clamping device 220 does not need to be opened to separate from the electrode 400, so as to simplify the descending operation procedure of the electrode 400, and avoid the damage of the electrode 400 caused by slight dislocation when the second clamping device 220 reclamps the electrode 400.
As the smelting proceeds, after the electrode 400 descends for several times, the descending stroke of the first lifting device 310 may reach the maximum position, so that the first lifting device 310 and the second lifting device 320 cannot continue to drive the electrode 400 to descend. Further, the control method may further include:
s610, the device 220 is opened to leave the electrode 400;
s620, controlling the second lifting device 320 to start so as to drive the second clamping device 220 to lift;
s630, when the rising distance of the second clamping device 220 is equal to the fourth preset distance, controlling the second lifting device 320 to stop running;
S640, controlling the second clamping device 220 to re-clamp the electrode 400;
s650, controlling the first clamping device 210 to open to leave the electrode 400;
s660, controlling the first lifting device 310 to start so as to drive the first clamping device 210 to lift;
s670, when the rising distance of the first clamping device 210 is equal to the fourth preset distance, controlling the first lifting device 310 to stop running;
s680, the first clamping device 210 is controlled to re-clamp the electrode 400.
Through the adjustment of the process, the first lifting device 310 and the second lifting device 320 leave the maximum position of the descending stroke, so that the first lifting device 310 and the second lifting device 320 can continuously drive the electrode 400 to descend, the lifting adjustment of the electrode 400 by the submerged arc furnace is more convenient, and the practicability and the operability of the control method are improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (9)
1. An electrode automatic lifting submerged arc furnace system, comprising:
the submerged arc furnace comprises an electrode lifting device and an electrode (400), wherein the electrode lifting device can drive the electrode (400) to lift;
the control system comprises a monitoring module and a control module, wherein the monitoring module and the electrode lifting device are electrically connected with the control module, and the monitoring module monitors the electrical parameters of the electrode (400), wherein the electrical parameters comprise electrode current, electrifying duration and electrode voltage;
the control module comprises a first processor, a second processor, a control unit and a memory, wherein a first fitting model between the power consumption of the electrode (400) and the loss amount of the electrode (400) is stored in the memory and can run on the first processor, the first fitting model is a fitting curve formed by fitting a plurality of groups of test data, the power consumption and the loss amount value of the electrode (400) are corresponding to any position on the fitting curve, the second processor is used for determining the actual power consumption of the electrode (400) according to the electric parameters, and the memory is also stored with the maximum allowable longitudinal loss length of the electrode (400), wherein the maximum allowable longitudinal loss length refers to: the electrode (400) is in use, the maximum distance of the allowable deviation of the electrode (400) in the longitudinal direction, after the maximum distance is exceeded, the actual power of the submerged arc furnace can fluctuate, so that the smelting process of alloy liquid in the submerged arc furnace is unstable, the maximum allowable longitudinal loss length of the electrode (400) refers to the loss length in one adjustment period of lifting of the electrode (400), the first processor can be further used for determining a preset loss amount according to the maximum allowable longitudinal loss length, and determining the preset power consumption of the electrode (400) according to the preset loss amount and the first fitting model, and the control unit is used for controlling the electrode lifting device to drive the electrode (400) to descend under the condition that the actual power consumption is larger than the preset power consumption.
2. The submerged arc furnace system according to claim 1, further comprising a furnace body (100), a first clamping device (210) and a second clamping device (220), wherein the electrode lifting device comprises a first lifting device (310) and a second lifting device (320), the furnace body (100) comprises a furnace body and a first mounting part (110) and a second mounting part (120) arranged on the furnace body, the first lifting device (310) is arranged on the first mounting part (110) and is in driving connection with the first clamping device (210), the first clamping device (210) can clamp the electrode (400), the first lifting device (310) drives the electrode (400) to lift through the first clamping device (210), the second lifting device (320) is arranged on the second mounting part (120) and is in driving connection with the second clamping device (220), the second clamping device (220) can clamp the electrode (400), and the second clamping device (320) drives the electrode (400) to lift through the second clamping device (220).
3. The submerged arc furnace system with automatic electrode lifting according to claim 2, wherein the first mounting part (110) and the second mounting part (120) comprise a first vertical frame (111), a second vertical frame (112) and a transverse frame (113), two ends of the transverse frame (113) are respectively connected with one end of the first vertical frame (111) and one end of the second vertical frame (112), the other end of the first vertical frame (111) and the other end of the second vertical frame (112) are respectively connected with the furnace body, the first lifting device (310) comprises a motor (311) and a screw rod (312), the motor (311) is arranged on the transverse frame (113), one end of the screw rod (312) is in rotating fit with the furnace body (100) through the transverse frame (113), one end of the first clamping device (210) and one end of the second clamping device (220) are respectively connected with the furnace body, a guide part (211) is arranged on two sides of the screw rod (211) and is in threaded fit with the screw rod (312) and is provided with the two sliding parts (211) of the screw rod (211), the sliding guide protrusion (212) is in sliding fit with the sliding groove (114).
4. The submerged arc furnace system with automatic electrode lifting according to claim 2, wherein the first lifting device (310) and the second lifting device (320) are both lifting cylinders or linear motors.
5. A control method of an electrode automatic lifting submerged arc furnace system, characterized by being applied to the submerged arc furnace system according to any one of claims 2 to 4, comprising:
monitoring the electrical parameters of the electrode (400), the electrical parameters including electrode current, energization time period, and electrode voltage;
determining an actual power consumption of the electrode (400) from the electrical parameter;
determining a first fitting model between the power consumption of the electrode (400) and the amount of loss of the electrode (400);
-determining a maximum allowable longitudinal loss length of the electrode (400), the maximum allowable longitudinal loss length being: in the use process of the electrode (400), the maximum distance of the allowable deviation of the electrode (400) in the longitudinal direction is the maximum distance beyond which the actual power of the submerged arc furnace fluctuates, so that the smelting process of alloy liquid in the submerged arc furnace is unstable, and the maximum allowable longitudinal loss length of the electrode (400) refers to the loss length in one adjustment period of the lifting of the electrode (400);
Determining a preset loss amount according to the maximum allowable longitudinal loss length;
determining a preset power consumption of the electrode (400) according to the preset loss and the first fitting model;
and controlling the electrode lifting device to drive the electrode (400) to descend by a second preset distance under the condition that the actual power consumption is larger than the preset power consumption, wherein the second preset distance is equal to the maximum allowable longitudinal loss length.
6. The control method according to claim 5, characterized in that the step of controlling the electrode lifting device to drive the electrode (400) to descend includes:
controlling the second clamping means (220) to open away from the electrode (400);
controlling the first lifting device (310) to start so as to drive the first clamping device (210) to descend, and driving the electrode (400) to descend by the first clamping device (210);
when the descending distance of the electrode (400) is equal to the second preset distance, controlling the first lifting device (310) to stop running;
-controlling the second clamping means (220) to re-clamp the electrode (400).
7. The control method according to claim 6, characterized in that the control method further comprises:
-measuring an actual distance between the first clamping device (210) and the second clamping device (220); controlling the first clamping means (210) to open to leave the electrode (400) if the actual distance is greater than a third preset distance; controlling the first lifting device (310) to start so as to drive the first clamping device (210) to ascend; when the rising distance of the first clamping device (210) is equal to the actual distance minus a safety distance, controlling the first lifting device (310) to stop running; -controlling the first clamping means (210) to re-clamp the electrode (400).
8. The control method according to claim 5, characterized in that the step of controlling the electrode lifting device to drive the electrode (400) to descend includes:
controlling the first lifting device (310) and the second lifting device (320) to synchronously start so as to drive the first clamping device (210) and the second clamping device (220) to synchronously descend and drive the electrode (400) to descend;
when the descending distance of the electrode (400) is equal to the second preset distance, the first lifting device (310) and the second clamping device (220) are controlled to synchronously stop running.
9. The control method according to claim 8, characterized in that the control method further comprises:
controlling the second clamping means (220) to open away from the electrode (400); controlling the second lifting device (320) to start so as to drive the second clamping device (220) to ascend; when the rising distance of the second clamping device (220) is equal to a fourth preset distance, the second lifting device (320) is controlled to stop running; -controlling the second clamping means (220) to reclampe the electrode (400); controlling the first clamping means (210) to open away from the electrode (400); controlling the first lifting device (310) to start so as to drive the first clamping device (210) to ascend; when the rising distance of the first clamping device (210) is equal to the fourth preset distance, the first lifting device (310) is controlled to stop running; -controlling the first clamping means (210) to re-clamp the electrode (400).
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU95100472A (en) * | 1995-01-11 | 1996-07-27 | Акционерное общество "НИИАчермет" (UA) | Method of control of active power of three-electrode ore-smelting furnace |
| CN101825401A (en) * | 2009-03-06 | 2010-09-08 | 中国恩菲工程技术有限公司 | Automatic control device of electrode deep insertion of submerged electric furnace |
| CN101868077A (en) * | 2010-05-31 | 2010-10-20 | 长春工业大学 | Non-contact detection and optimum smelting control method for submerged arc furnace electrode |
| CN102630107A (en) * | 2012-04-06 | 2012-08-08 | 南京理工大学常熟研究院有限公司 | Electrode lift control method of ore smelting electric arc furnace |
| CN103092095A (en) * | 2012-12-14 | 2013-05-08 | 成都高威节能科技有限公司 | Control method of submerged arc furnace discharge time intervals |
| CN103115599A (en) * | 2013-01-29 | 2013-05-22 | 成都高威节能科技有限公司 | Method for determining positions of working points of electrode of submerged arc furnace |
| CN107703977A (en) * | 2017-09-26 | 2018-02-16 | 东北大学秦皇岛分校 | The control method of electrometallurgy furnace control system and electrometallurgy stove electrode |
| CN109737754A (en) * | 2019-03-06 | 2019-05-10 | 重庆大朗冶金新材料有限公司 | Mineral hot furnace automatic operation system |
| CN111811252A (en) * | 2020-06-16 | 2020-10-23 | 西安交通大学 | Three-phase layered combined electrode ore smelting furnace and control method thereof |
| CN112077293A (en) * | 2020-10-11 | 2020-12-15 | 宁夏昌茂祥冶炼有限公司 | Integrated ferroalloy smelting system |
| CN213335473U (en) * | 2020-10-11 | 2021-06-01 | 宁夏昌茂祥冶炼有限公司 | Furnace door air seal connection type submerged arc furnace |
| CN213335573U (en) * | 2020-10-11 | 2021-06-01 | 宁夏昌茂祥冶炼有限公司 | Submerged arc furnace capable of prolonging service life of electrode |
| CN213835482U (en) * | 2020-10-11 | 2021-07-30 | 宁夏昌茂祥冶炼有限公司 | Furnace body air-cooled submerged arc furnace |
| CN213835404U (en) * | 2020-10-11 | 2021-07-30 | 宁夏昌茂祥冶炼有限公司 | Bottom rotation type ferroalloy smelting system |
| CN113324402A (en) * | 2021-05-28 | 2021-08-31 | 牡丹江师范学院 | Automatic control system of three-phase electric arc smelting electric furnace |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2430276B (en) * | 2005-09-20 | 2009-09-16 | Advanced Mineral Recovery Tech | Control system for an arc furnace |
| CN100428093C (en) * | 2006-06-15 | 2008-10-22 | 成都高威节能科技有限公司 | Method for aotomatic controlling rise fall of electrodes in mine hot stove |
| RU2400020C2 (en) * | 2008-10-15 | 2010-09-20 | Александр Александрович Максимов | Method and system of automatic control of electric mode of ore-heating furnace |
| CN101527980B (en) * | 2009-04-20 | 2011-04-13 | 成都高威节能科技有限公司 | Electrode batch-type hoisting method of mine soaking furnace electrode automatic control system |
| CN102111927B (en) * | 2009-12-24 | 2012-11-28 | 深圳达实智能股份有限公司 | Method and system for controlling electrode of open-type submerged arc ore heat furnace |
| CN101807054A (en) * | 2010-02-26 | 2010-08-18 | 成都高威节能科技有限公司 | Automatic control method for preventing electrode in submerged arc furnace from shocking |
| CN101968319B (en) * | 2010-09-13 | 2012-09-19 | 中国恩菲工程技术有限公司 | Automatic power control system of electric furnace |
| JP6583614B2 (en) * | 2015-05-11 | 2019-10-02 | 大同特殊鋼株式会社 | Electrode breakage prevention device for arc furnace |
| CN107062890B (en) * | 2017-05-22 | 2019-10-15 | 宁夏金丝路新能源科技有限公司 | A kind of mineral hot furnace smelting expert system at the comprehensive control point of band |
| CN108398032A (en) * | 2018-02-26 | 2018-08-14 | 中南大学 | A kind of Electrode control method during totally enclosed type mine heat furnace smelting |
| CN108445745A (en) * | 2018-03-15 | 2018-08-24 | 中南大学 | A kind of electrode lift control method of ore and system based on neural network decoupling |
| CN109757003B (en) * | 2019-03-06 | 2021-06-18 | 重庆大朗冶金新材料有限公司 | Automatic control method for submerged arc furnace |
| CN212205677U (en) * | 2020-05-25 | 2020-12-22 | 内蒙古君正化工有限责任公司 | Automatic electrode lifting and placing device of ferrosilicon furnace |
| CN112094976B (en) * | 2020-10-11 | 2024-06-14 | 宁夏昌茂祥冶炼有限公司 | Bottom rotary ferroalloy smelting system |
| CN114205943B (en) * | 2021-12-08 | 2024-05-10 | 石红兵 | Method and system for controlling electrode insertion depth of submerged arc furnace |
-
2022
- 2022-03-22 CN CN202210287408.6A patent/CN114659373B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU95100472A (en) * | 1995-01-11 | 1996-07-27 | Акционерное общество "НИИАчермет" (UA) | Method of control of active power of three-electrode ore-smelting furnace |
| CN101825401A (en) * | 2009-03-06 | 2010-09-08 | 中国恩菲工程技术有限公司 | Automatic control device of electrode deep insertion of submerged electric furnace |
| CN101868077A (en) * | 2010-05-31 | 2010-10-20 | 长春工业大学 | Non-contact detection and optimum smelting control method for submerged arc furnace electrode |
| CN102630107A (en) * | 2012-04-06 | 2012-08-08 | 南京理工大学常熟研究院有限公司 | Electrode lift control method of ore smelting electric arc furnace |
| CN103092095A (en) * | 2012-12-14 | 2013-05-08 | 成都高威节能科技有限公司 | Control method of submerged arc furnace discharge time intervals |
| CN103115599A (en) * | 2013-01-29 | 2013-05-22 | 成都高威节能科技有限公司 | Method for determining positions of working points of electrode of submerged arc furnace |
| CN107703977A (en) * | 2017-09-26 | 2018-02-16 | 东北大学秦皇岛分校 | The control method of electrometallurgy furnace control system and electrometallurgy stove electrode |
| CN109737754A (en) * | 2019-03-06 | 2019-05-10 | 重庆大朗冶金新材料有限公司 | Mineral hot furnace automatic operation system |
| CN111811252A (en) * | 2020-06-16 | 2020-10-23 | 西安交通大学 | Three-phase layered combined electrode ore smelting furnace and control method thereof |
| CN112077293A (en) * | 2020-10-11 | 2020-12-15 | 宁夏昌茂祥冶炼有限公司 | Integrated ferroalloy smelting system |
| CN213335473U (en) * | 2020-10-11 | 2021-06-01 | 宁夏昌茂祥冶炼有限公司 | Furnace door air seal connection type submerged arc furnace |
| CN213335573U (en) * | 2020-10-11 | 2021-06-01 | 宁夏昌茂祥冶炼有限公司 | Submerged arc furnace capable of prolonging service life of electrode |
| CN213835482U (en) * | 2020-10-11 | 2021-07-30 | 宁夏昌茂祥冶炼有限公司 | Furnace body air-cooled submerged arc furnace |
| CN213835404U (en) * | 2020-10-11 | 2021-07-30 | 宁夏昌茂祥冶炼有限公司 | Bottom rotation type ferroalloy smelting system |
| CN113324402A (en) * | 2021-05-28 | 2021-08-31 | 牡丹江师范学院 | Automatic control system of three-phase electric arc smelting electric furnace |
Non-Patent Citations (1)
| Title |
|---|
| 一种敞口式埋弧矿热炉电极控制方法及***;钟宇彤;;价值工程(12);全文 * |
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