CN107504819B - Intelligent detection device and detection method for electrode depth of submerged arc furnace - Google Patents
Intelligent detection device and detection method for electrode depth of submerged arc furnace Download PDFInfo
- Publication number
- CN107504819B CN107504819B CN201710953114.1A CN201710953114A CN107504819B CN 107504819 B CN107504819 B CN 107504819B CN 201710953114 A CN201710953114 A CN 201710953114A CN 107504819 B CN107504819 B CN 107504819B
- Authority
- CN
- China
- Prior art keywords
- electrode
- impedance
- depth
- arc furnace
- submerged arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 55
- 238000003780 insertion Methods 0.000 claims abstract description 55
- 230000037431 insertion Effects 0.000 claims abstract description 55
- 238000005259 measurement Methods 0.000 claims abstract description 28
- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
- 230000008859 change Effects 0.000 claims description 24
- 239000002893 slag Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 238000002474 experimental method Methods 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 9
- 230000007246 mechanism Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000010891 electric arc Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The disclosure provides a submerged arc furnace electrode depth detection device and a detection method, wherein the detection device comprises: the electrode lifting control system is used for controlling the lifting of the electrode; an electrode electrical measurement system for obtaining an operating voltage and current of the electrode; the electrode automatic control system is electrically connected with the electrode lifting control system and the electrode electric measurement system and is used for recording the working voltage and current of the electrode so as to obtain the impedance of the electrode, and simultaneously recording the displacement of the electrode and the corresponding impedance variation so as to obtain the variation rate of the impedance along with the electrode insertion depth. According to the intelligent detection device and the detection method, on one hand, manpower is saved, the accuracy and the efficiency of electrode depth detection are improved, the operation of the submerged arc furnace is more intelligent and automatic, and on the other hand, the smelting and energy-saving effects of the submerged arc furnace are guaranteed.
Description
Technical Field
The disclosure relates to the technical field of smelting, in particular to an intelligent detection device for the electrode depth of an ore-smelting electric furnace and an intelligent detection method for detecting the electrode depth of the ore-smelting electric furnace by adopting the intelligent detection device.
Background
An electric furnace is a common smelting device, and the common electric furnace is an arc furnace. The electric arc furnace is a circuit for smelting metals and other materials by utilizing the arc heating effect, and is divided into three types according to the heating mode: (1) indirectly heating the electric arc furnace; (2) directly heating the arc furnace; (3) submerged arc electric furnace. The submerged arc electric furnace is also called a reduction circuit or an ore-smelting electric furnace, one end of an electrode is buried in a material layer, an electric arc is formed in the material layer, and the material is heated by utilizing the self resistance heating of the material layer. The operation of the submerged arc furnace has important influence on the smelting effect, and the current submerged arc furnace has lower automation and intelligent degree, and the smelting effect is difficult to be maintained at the optimal level due to the manual operation which depends on a large amount of experience.
The submerged arc furnace is divided into three layers, wherein the uppermost layer is an added material layer, the middle layer is a slag layer formed after the materials are melted, and the lowermost layer is a metal melt layer. The working position of the electrode end part is in the slag layer of the submerged arc furnace, and the insertion position of the electrode end part in the slag layer determines the distribution of heat in the furnace and also determines the electrical operation characteristics of the electrode. The distance between the end part of the electrode and the upper surface of the metal melt layer in the furnace, namely the electrode insertion depth, and the detection of the electrode insertion depth plays a vital role in electric furnace smelting and energy saving effect. At present, the judgment of the working position of the electrode end is generally carried out manually according to experience, but the manual lifting electrode is completely judged manually, so that the accuracy is poor, and the judgment becomes an important factor affecting the automation and the intellectualization of the operation of the electric furnace.
In view of this, in order to reduce manpower and improve automation and intelligentization degree of operation of the submerged arc furnace, and further improve smelting effect of the submerged arc furnace, an intelligent detection device and a detection method for electrode depth of the submerged arc furnace are needed to solve the above technical problems.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The present disclosure is directed to an intelligent detection device for electrode depth of a submerged arc furnace and a method for detecting electrode depth of a submerged arc furnace using the same, thereby overcoming one or more problems due to limitations and disadvantages of the related art to at least some extent.
Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.
According to a first aspect of the present disclosure, there is provided an intelligent detection device for electrode depth of an submerged arc furnace, comprising:
the electrode lifting control system is used for controlling the lifting of the electrode in the slag layer;
an electrode electrical measurement system for obtaining an operating voltage and current of the electrode;
the electrode automatic control system is electrically connected with the electrode lifting control system and the electrode electric measurement system and is used for recording the working voltage and current of the electrode to obtain the impedance of the electrode, simultaneously recording the displacement of the electrode and the corresponding impedance variation to obtain the variation rate of the impedance along with the electrode insertion depth, and obtaining the electrode insertion depth according to the impedance of the electrode and the variation rate of the impedance along with the electrode insertion depth.
In one exemplary embodiment of the present disclosure, the electrode elevation control system includes an electrode elevation position encoder for obtaining the displacement of the electrode.
In one exemplary embodiment of the present disclosure, the electrode lifting control system is a hydraulic lifting system or a motor hoist lifting system.
In one exemplary embodiment of the present disclosure, the electrode electrical measurement system includes:
a voltage measuring unit for measuring an operating voltage of the electrode;
and the current measuring unit is used for measuring the current passing through the electrode.
In one exemplary embodiment of the present disclosure, the electrode automatic control system further includes:
a recording unit for recording the displacement of the electrode and the variation of the impedance, and the operating voltage and current;
and the calculating unit is used for calculating the change rate of the impedance along with the electrode insertion depth and the impedance of the electrode.
In one exemplary embodiment of the present disclosure, the electrode is formed using a material having high conductivity.
In an exemplary embodiment of the present disclosure, the calculation formula of the electrode insertion depth H is:
where R is the impedance of the electrode,k is the rate of change of impedance with the depth of insertion of the electrode 1 、K 2 、K 3 And H is the electrode insertion depth.
According to a second aspect of the present disclosure, there is provided an intelligent detection method for electrode depth of a submerged arc furnace, an intelligent detection apparatus for electrode depth of a submerged arc furnace, including:
controlling the lifting of the electrode through the electrode lifting control system;
obtaining an operating voltage and current of the electrode through the electrode electrical measurement system;
recording the working voltage and current of the electrode through the electrode automatic control system to obtain the impedance of the electrode, and recording the displacement of the electrode and the corresponding impedance variation to obtain the variation rate of the impedance along with the electrode insertion depth;
and obtaining the electrode insertion depth according to the impedance of the electrode and the change rate of the impedance along with the electrode insertion depth.
In one exemplary embodiment of the present disclosure, the obtaining, by the electrode electrical measurement system, the operating voltage and current of the electrode includes:
measuring the working voltage of the electrode by a voltage measuring unit;
the current passing through the electrode is measured by a current measuring unit.
In one exemplary embodiment of the present disclosure, obtaining the electrode penetration depth from the impedance of the electrode and the rate of change of the impedance of the electrode with the electrode penetration depth includes:
the electrode insertion depth H is obtained according to formula (1),
where R is the impedance of the electrode,k is the rate of change of impedance with the depth of insertion of the electrode 1 、K 2 、K 3 And H is the electrode insertion depth.
According to the technical scheme, the intelligent detection device and the detection method for the electrode depth of the submerged arc furnace in the exemplary embodiment of the disclosure have at least the following advantages and positive effects:
the method comprises the steps that an electrode lifting control system is used for enabling an electrode to be located on a slag layer, voltage is applied to the electrode, working voltage and current of the electrode are obtained through an electrode electric measurement system, and then impedance of the electrode is calculated through an electrode automatic control system; meanwhile, the automatic electrode control system can record the displacement of the electrode and the corresponding change amount of the impedance, so that the change rate of the impedance along with the electrode insertion depth is calculated. And obtaining the electrode insertion depth according to the impedance of the electrode and the change rate of the impedance along with the electrode insertion depth and a corresponding electrode insertion depth calculation formula. According to the intelligent detection device and the detection method, on one hand, detection errors caused by manually lifting and lowering the electrode are avoided, the accuracy of electrode depth detection is improved, and smelting and energy-saving effects of the submerged arc furnace are further improved; on the other hand, the intelligent detection method only needs to measure the impedance and the change rate of the impedance along with the electrode insertion depth, has few parameters and simple calculation, and therefore, the detection efficiency is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.
FIG. 1 is a schematic view showing an internal structure of an submerged arc furnace in an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic diagram showing the structure of an intelligent detection device for electrode depth of an submerged arc furnace in an exemplary embodiment of the present disclosure;
FIG. 3 is a schematic diagram showing the structure of an electrode electrical measurement system in an intelligent detection device for electrode depth of an submerged arc furnace according to an exemplary embodiment of the present disclosure;
FIG. 4 is a schematic diagram showing the structure of an electrode automatic control system in an intelligent detection device for electrode depth of an submerged arc furnace according to an exemplary embodiment of the present disclosure;
fig. 5 shows a flow diagram of an intelligent detection method for electrode depth of an submerged arc furnace in an exemplary embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present disclosure. One skilled in the relevant art will recognize, however, that the aspects of the disclosure may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure.
The terms "a," "an," "the," and "said" are used in this specification to denote the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first" and "second" and the like are used merely as labels, and are not intended to limit the number of their objects.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.
In this exemplary embodiment, an intelligent detection device for electrode depth of a submerged arc furnace is provided first, and a structure of the intelligent detection device for electrode depth of a submerged arc furnace of the present disclosure will now be exemplarily described with reference to fig. 1-2.
Fig. 1 shows a case where a submerged arc furnace 100 having a material in the furnace in an operating state is divided into three layers: the uppermost layer is a material layer 101, the middle layer is a slag layer 102 formed after the material is melted, and the lowermost layer is a metal layer 103. Since the resistivity of the material layer 101 is much higher than the resistivity of the slag layer 102, its resistance can be considered infinite, while the resistivity of the metal layer 103 is much lower than the resistivity of the slag layer 102, its resistance can be considered zero. Thus, for convenience in measuring the electrical parameters (voltage, current) of the electrode 104, the end of said electrode 104 is preferably located in the slag layer 102. In addition, the electrode 104 is formed of any metal material having high conductivity, such as silver, copper, gold, aluminum, etc., but it is readily understood that other materials having high conductivity are equally possible for use in the present application; since the resistance of the electrode 104 itself is extremely small, the resistance of the electrode 104 itself is negligible, and thus the resistance R of the electrode 104 can be considered as the resistance value of the slag layer 102 between the lower end of the electrode 104 and the upper surface of the metal layer, the resistance R being determined by the position of the electrode 104 in the slag layer 102, irrespective of the material layer and the metal layer.
The submerged arc furnace 200 in fig. 2 comprises an electrode lifting control system 201, an electrode electrical measurement system 202 and an electrode automatic control system 203, wherein the electrode lifting control system 201 is used for controlling the lifting of the electrode 104 in the slag layer 102, and the electrode electrical measurement system 202 is used for obtaining the working voltage and the working current of the electrode 104; the electrode automatic control system 203 is electrically connected with the electrode lifting control system 201 and the electrode electrical measurement system 202, and is used for recording the working voltage and current of the electrode 104 to obtain the impedance R of the electrode 104, and simultaneously recording the displacement dH and the corresponding impedance variation dR of the electrode 104 to obtain the rate of change of the impedance with the electrode insertion depthFinally, according to the impedance R of the electrode 104, the impedance changes along with the insertion depth of the electrodeTransformation rate->The electrode insertion depth H is obtained.
According to the method, the electrode insertion depth H is judged through the change of the electrode impedance R, so that on one hand, detection errors caused by manually lifting the electrode are avoided, the accuracy of electrode insertion depth detection is improved, and the smelting and energy-saving effects of the submerged arc furnace are further improved; on the other hand, the intelligent detection method only needs to measure the impedance and the change rate of the impedance along with the electrode insertion depth, has few parameters and simple calculation, and therefore, the detection efficiency is improved.
In an exemplary embodiment of the present disclosure, a dc voltage source may be provided in the intelligent detection device for electrode depth of the submerged arc furnace to apply a voltage between the electrode 104 and ground.
In the exemplary embodiment of the present disclosure, the electrode lifting control system 201 controls the lifting of the electrode 104 in the slag layer 102, and the electrode lifting mechanism may be a hydraulic lifting mechanism, an electrode hoisting lifting mechanism, or a lifting mechanism in the form of a screw rod, preferably, the electrode lifting mechanism is a hydraulic lifting mechanism, and the lifting of the electrode 104 can be achieved more sensitively and smoothly by using the hydraulic lifting mechanism.
In the exemplary embodiment of the present disclosure, the electrode lifting control system 201 is electrically connected to a control mechanism, and the control mechanism is configured to send a control signal to control the opening and closing of the electrode lifting control system 201; in addition, a switch button may be provided on the electrode lifting control system 201 to control the opening and closing thereof.
Further, to obtain the displacement of the electrode 104, the electrode lifting control system 201 may include an electrode lifting position encoder, and when the electrode 104 is lifted, the electrode lifting position encoder may read the displacement dH of the electrode and feed back the displacement dH of the electrode to the electrode automatic control system 203.
Fig. 3 shows the structure of the electrode electrical measurement system. The electrode electrical measurement system may comprise a voltage measurement unit 301 and a current measurement unit 302. In order to determine the impedance R of the electrode 104, a voltage is applied between the electrode 104 and ground, the voltage measuring unit 301 is used for measuring an operating voltage U of the electrode 104, the current measuring unit 302 is used for measuring a current I passing through the electrode 104, and the operating voltage U and the current I are fed back to the electrode automatic control system 203.
The electrode automatic control system 203 is electrically connected with the electrode lifting control system 201 and the electrode electrical measurement system 202, and further, as shown in fig. 4, the electrode automatic control system further comprises a recording unit 401 and a calculating unit 402, wherein the recording unit 401 is used for recording the displacement dH of the electrode, the variation dR of the impedance, and the working voltage U and the current I; the calculating unit 402 is used for calculating the rate of change of the impedance with the depth of the electrode according to the data in the recording unit 401And the impedance R of the electrode.
Since the electrode impedance R and the rate of change dR/dH of the electrode impedance with the electrode insertion depth are both proportional to the electrode insertion depth H. According to the electrode impedance R and the change rate of the electrode impedance along with the electrode insertion depthThe electrode insertion depth H can be obtained by calculating the formula (1):
where R is the impedance of the electrode,k is the rate of change of impedance with the depth of insertion of the electrode 1 、K 2 、K 3 The coefficients determined after numerical fitting are performed on the data obtained by using the metallurgical experiment.
The parameters in the formula are fewer, so that the detection method of the electrode depth is simpler and more efficient, and the efficiency and the accuracy of detecting the electrode depth of the submerged arc furnace are improved.
The exemplary embodiment of the disclosure further provides a method for detecting the electrode insertion depth by using the intelligent detection device for the electrode insertion depth of the submerged arc furnace, and fig. 5 shows a specific flow of the intelligent detection method, which comprises the following steps:
a) Controlling the lifting of the electrode 104 by the electrode lifting control system 201;
the electrode elevation control system 201 receives a control signal to control the elevation of the electrode 104 in the slag layer 102. An electrode lifting position encoder is electrically connected with the electrode lifting control system 201, the electrode displacement dH can be obtained through the electrode lifting position encoder, and the electrode lifting control system 201 feeds back the electrode displacement dH to the electrode automatic control system 203. The control signal may be a control signal sent by a control device electrically connected to the electrode lifting control system, or may be a switch button on the electrode lifting control system 201, and all the deformations that can realize controlling the electrode lifting are in the protection scope of the present application, which is not described herein.
b) Obtaining an operating voltage U and a current I of the electrode by the electrode electrical measurement system 202;
the electrode electrical measurement system 202 may comprise a voltage measurement unit for measuring the operating voltage U over the electrode and a current measurement unit for measuring the current I passing over the electrode, the electrode electrical measurement system 202 being capable of feeding back the operating voltage U and the current I to the automatic control system 203.
c) Recording the working voltage U and the current I by the electrode automatic control system 203 to obtain the impedance R of the electrode, and recording the displacement dH and the corresponding impedance variation dR of the electrode to obtain the variation rate of the impedance R along with the electrode insertion depth H
Since the metal content of each layer in the slag layer 102 is different, the resistivity of each high slag layer is also different, and therefore, the resistivity is lower as the metal layer 103 is closer, and the impedance is also changed when the electrode 104 is lifted, so that the corresponding change amount of the impedance is dR when the electrode is displaced dH.
The electrode elevation control system 201 and the electrode electrical measurement system 202 are electrically connected to the electrode automatic control system 203. The automatic electrode control system 203 may comprise a recording unit 401 and a calculating unit 402, wherein the recording unit 401 records the displacement dH of the electrode, the variation dR of the impedance, the operating voltage U and the current I, and the calculating unit 402 calculates the impedance R according to the data in the recording unit 401 by an impedance calculation formula r=u/I, and calculates the rate of change of the impedance with the depth of insertion of the electrode
d) According to the impedance R of the electrode and the change rate of the impedance along with the insertion depth of the electrodeThe electrode insertion depth H is obtained.
Obtaining electrode insertion depth H according to an electrode insertion depth calculation formula:
where R is the impedance of the electrode,k is the rate of change of impedance with the depth of insertion of the electrode 1 、K 2 、K 3 The coefficients determined after numerical fitting are performed on the data obtained by using the metallurgical experiment.
The intelligent detection device and the intelligent detection method for the electrode depth of the submerged arc furnace, provided by the disclosure, avoid errors of manual detection, improve the accuracy of electrode depth detection, and further improve the smelting and energy-saving effects of the submerged arc furnace; in addition, the intelligent detection method only needs to measure the impedance and the change rate of the impedance along with the electrode insertion depth, has few parameters, is simple to calculate and simple and convenient in detection method, so that the detection efficiency is improved.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. The utility model provides a submerged arc furnace electrode insertion detection device, its characterized in that, submerged arc furnace includes material layer, slag layer and metal layer when having the material in the submerged arc furnace and being in operating condition, the resistivity of material layer is higher than the resistivity of slag layer, the resistivity of metal layer is less than the resistivity of slag layer includes:
the electrode lifting control system is used for controlling the lifting of the electrode in the slag layer;
an electrode electrical measurement system for obtaining an operating voltage and current of the electrode;
the electrode automatic control system is electrically connected with the electrode lifting control system and the electrode electric measurement system and is used for recording the working voltage and current of the electrode to obtain the impedance of the electrode, simultaneously recording the displacement of the electrode and the corresponding impedance variation to obtain the variation rate of the impedance along with the electrode insertion depth, and obtaining the electrode insertion depth according to the impedance of the electrode and the variation rate of the impedance along with the electrode insertion depth, wherein the electrode is formed by adopting a material with high conductivity, and the impedance of the electrode is the impedance of a slag layer between the lower end of the electrode and the upper surface of the metal layer;
the calculation formula of the electrode depth is as follows:
where R is the impedance of the electrode,k is the rate of change of impedance with the depth of insertion of the electrode 1 、K 2 、K 3 And K1, K2 and K3 are coefficients which are determined after numerical fitting is carried out on data obtained by using a metallurgical experiment, and H is the electrode insertion depth.
2. The submerged arc furnace electrode depth of claim 1, wherein the electrode elevation control system comprises an electrode elevation position encoder for obtaining the displacement of the electrode.
3. The submerged arc furnace electrode depth detection device of claim 2, wherein the electrode lifting control system is a hydraulic lifting system or a motor winch lifting system.
4. The submerged arc furnace electrode insertion depth detection apparatus of claim 1, wherein the electrode electrical measurement system comprises:
a voltage measuring unit for measuring an operating voltage of the electrode;
and the current measuring unit is used for measuring the current passing through the electrode.
5. The submerged arc furnace electrode insertion depth detection apparatus of claim 1, wherein the electrode automatic control system further comprises:
a recording unit for recording the displacement of the electrode, the variation of the impedance, the operating voltage and the current;
and the calculating unit is used for calculating the change rate of the impedance along with the electrode insertion depth and the impedance of the electrode.
6. A method for detecting electrode depth of a submerged arc furnace, which is characterized in that the submerged arc furnace electrode depth detection device according to any one of claims 1 to 5 is used, and the method comprises the following steps:
controlling the lifting of the electrode in the slag layer through the electrode lifting control system;
measuring the operating voltage and current of the electrode by the electrode electrical measurement system;
recording the working voltage and current of the electrode through the electrode automatic control system to obtain the impedance of the electrode, and recording the displacement of the electrode and the corresponding impedance variation to obtain the variation rate of the impedance along with the electrode insertion depth;
and obtaining the electrode insertion depth according to the impedance of the electrode and the change rate of the impedance along with the electrode insertion depth.
7. The intelligent detection method for the electrode depth of the submerged arc furnace according to claim 6, wherein the obtaining the working voltage and the working current of the electrode through the electrode electric measurement system comprises the following steps:
measuring the working voltage of the electrode by a voltage measuring unit;
the current passing through the electrode is measured by a current measuring unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710953114.1A CN107504819B (en) | 2017-10-13 | 2017-10-13 | Intelligent detection device and detection method for electrode depth of submerged arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710953114.1A CN107504819B (en) | 2017-10-13 | 2017-10-13 | Intelligent detection device and detection method for electrode depth of submerged arc furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107504819A CN107504819A (en) | 2017-12-22 |
| CN107504819B true CN107504819B (en) | 2023-11-03 |
Family
ID=60701288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710953114.1A Active CN107504819B (en) | 2017-10-13 | 2017-10-13 | Intelligent detection device and detection method for electrode depth of submerged arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107504819B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117268252A (en) * | 2023-11-23 | 2023-12-22 | 中控技术股份有限公司 | Electrode embedding depth prediction method and device, storage medium and electronic equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3375318A (en) * | 1963-10-24 | 1968-03-26 | Elektrokemisk As | Method and an arrangement for measuring and controlling electrode positions in electric furnaces and the like |
| CN101720146A (en) * | 2009-12-15 | 2010-06-02 | 中冶东方工程技术有限公司 | Control method of embedding depth of electrode into ore-smelting electric furnace |
| CN101968319A (en) * | 2010-09-13 | 2011-02-09 | 中国恩菲工程技术有限公司 | Automatic power control system of electric furnace |
| CN102200463A (en) * | 2011-03-23 | 2011-09-28 | 泰州市瑞芝电子有限公司 | Liquid level linear measurement method based on impedance measurement |
| CN202916660U (en) * | 2012-06-08 | 2013-05-01 | 重庆安谐新能源技术有限公司 | Automatic control system for industrial silicon furnaces |
| CN106123768A (en) * | 2016-06-29 | 2016-11-16 | 青岛菲特测控节能科技有限公司 | A kind of electrodes in mine hot stove depth-measuring system |
| CN207351228U (en) * | 2017-10-13 | 2018-05-11 | 中国恩菲工程技术有限公司 | The detection device of ore-smelting electric furnace electrode deep insertion |
-
2017
- 2017-10-13 CN CN201710953114.1A patent/CN107504819B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3375318A (en) * | 1963-10-24 | 1968-03-26 | Elektrokemisk As | Method and an arrangement for measuring and controlling electrode positions in electric furnaces and the like |
| CN101720146A (en) * | 2009-12-15 | 2010-06-02 | 中冶东方工程技术有限公司 | Control method of embedding depth of electrode into ore-smelting electric furnace |
| CN101968319A (en) * | 2010-09-13 | 2011-02-09 | 中国恩菲工程技术有限公司 | Automatic power control system of electric furnace |
| CN102200463A (en) * | 2011-03-23 | 2011-09-28 | 泰州市瑞芝电子有限公司 | Liquid level linear measurement method based on impedance measurement |
| CN202916660U (en) * | 2012-06-08 | 2013-05-01 | 重庆安谐新能源技术有限公司 | Automatic control system for industrial silicon furnaces |
| CN106123768A (en) * | 2016-06-29 | 2016-11-16 | 青岛菲特测控节能科技有限公司 | A kind of electrodes in mine hot stove depth-measuring system |
| CN207351228U (en) * | 2017-10-13 | 2018-05-11 | 中国恩菲工程技术有限公司 | The detection device of ore-smelting electric furnace electrode deep insertion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107504819A (en) | 2017-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101787140B1 (en) | Measurements in metallurgical vessels | |
| EP2961864B1 (en) | Arrangement for measuring electric current in an individual electrode in an electrolysis system | |
| CN107504819B (en) | Intelligent detection device and detection method for electrode depth of submerged arc furnace | |
| CN207407810U (en) | The detection device of ore-smelting electric furnace thickness of slag layer | |
| CN107504892B (en) | Device and method for detecting thickness of submerged arc furnace slag layer | |
| KR101200923B1 (en) | Capacitance type level sensor | |
| CN106123756B (en) | A kind of contactless magnetic field array sensing detecting system and probe distance setting method | |
| CN203643001U (en) | Setting pond mud level measurement device | |
| CN201386136Y (en) | Concentration control device of flexible circuit board etching liquid | |
| CN104625181B (en) | PCB millings panel assembly and PCB milling plate methods | |
| CN106546654B (en) | Sensor for Monitoring Corrosion | |
| JP2002356709A (en) | Method for measuring slag layer thickness, and method and apparatus for measuring surface level positions of slag layer and molten metal layer surface | |
| CN110230975B (en) | Steel slag layer thickness measuring device | |
| CN205157400U (en) | Instantaneous corrosion rate sensor of soil electrochemistry | |
| CN207351228U (en) | The detection device of ore-smelting electric furnace electrode deep insertion | |
| CN208568652U (en) | A kind of four-electrode method measurement soil resistivity analogue test platform | |
| CA2709206C (en) | Assembly for measurement of a metal level in a reduction cell | |
| CN2352933Y (en) | Device for measuring and controlling liquid level of torpedo hot metal mixer car | |
| CN2466635Y (en) | High-precision soil corrosion measuring device | |
| JP3138953B2 (en) | Slag thickness measuring device | |
| CN109518232A (en) | A kind of detection of nonferrous smelting electrolytic pole board short circuit and processing unit and method | |
| CN209508431U (en) | A kind of electrode of aluminum electrolysis cell current distributions measuring device | |
| CN209722328U (en) | A kind of detection and processing unit of the short circuit of nonferrous smelting electrolytic pole board | |
| CN209525241U (en) | A kind of system can be used for the measurement of drum type strainer corrosion potential | |
| CN201804061U (en) | Current temperature rise detection device for copper foil of circuit board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |