CN102152952A - Deviation-preventing detection circuit and detection method for furnace charge conveyer belt of electric arc furnace - Google Patents
Deviation-preventing detection circuit and detection method for furnace charge conveyer belt of electric arc furnace Download PDFInfo
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- CN102152952A CN102152952A CN 201110053910 CN201110053910A CN102152952A CN 102152952 A CN102152952 A CN 102152952A CN 201110053910 CN201110053910 CN 201110053910 CN 201110053910 A CN201110053910 A CN 201110053910A CN 102152952 A CN102152952 A CN 102152952A
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Abstract
The invention discloses a deviation-preventing detection circuit and a detection method for a furnace charge conveyer belt of an electric arc furnace, which relate to the field of mechatronic engineering and solve the problem of lack of automatic detection and control in the prior art. Detection is performed above and below the furnace charge conveyer belt by a light source, lenses and a photoelectric sensor. A bright area and a dark area are produced on the photoelectric sensor by the position signal of the furnace charge conveyer belt, and a computer control system detects the position parameter of the furnace charge conveyer belt through the alternation of bright current and dark current according to the photoelectric sensor which is provided with sequence numbers, so that whether the furnace charge conveyer belt is balanced at a central position or not can be detected; the deviation of the conveyer belt can be calculated by using the position parameter of the conveyer belt; and a deviated position is displayed in the computer control system. In the working process of the furnace charge conveyer belt of the electric arc furnace, the transverse deviated position of the furnace charge conveyer belt is displaced and tracked by the computer control system, and automatic alarming is realized, so that the position parameter of the furnace charge conveyer belt is displayed and controlled in time, and the running safety of the furnace charge conveyer belt is ensured.
Description
Technical field
The present invention relates to the Mechatronic Engineering field, be specifically related to anti-inclined to one side testing circuit of a kind of ore deposit hot stove furnace charge transport tape and method of inspection.
Background technology
Enter 21 century, electric arc furnace smelting is an inexorable trend of world's metallurgy industry development.The fundamental guiding ideology of following arc furnace technology is efficient, energy-conservation, low consumption, environmental protection.In order to reach this target, modern arc furnace has developed a lot of pioneering technologys, as technology such as ultra high electric arc furnace, direct current electric arc furnace, reinforcement oxygen, steel scrap preheating, manual intelligent power supply, high Impedance Electric Arc Furnace.Change has also taken place in the type of furnace simultaneously, vertical arc furnace, and bottom blowing arc furnace etc. puts into production in succession.Particularly the innovation of the technology each time of Feed system has all improved the capacity rating of arc furnace greatly, has reduced the consumption of electric energy and electrode, has saved the energy, has reduced productive costs, has improved whipping performance and the metallurgical performance and the quality in molten bath.
Energy scarcity in China, especially electric energy today in short supply, arc furnace is as a huge power consumption user, because of the cost that the electricity charge are shared higher, many electrosmeltings factory lacks the market competitiveness, thereby reduces power consumption, improves power and become the key issue that electric arc furnace steel plant improves economic vitality.
It is a very complicated system that the mineral aggregate of arc furnace is carried, and wanting to make each parameter all to move is very difficult in the best condition.Because general on-the-spot working environment is very complicated; simultaneously because unreasonable in the belt system design; the parts build guality is poor; a variety of causes such as Installation and Debugging and human element; cause belt deflection through regular meeting; cause the wearing and tearing of spreading, belt limit, even make phenomenon such as belt conveyer cisco unity malfunction, have a strong impact on the carrying out of smelting work.To this, at the various phenomenons that produce belt deviation, the scene is mostly to be to adopt targetedly manually correction mode to adjust, and for example for the sideslip of load-transfer device on head roll, the method for putting with adjustment roller bearings seat is eliminated usually; The sideslip at load-transfer device position between head and tail is middle part or local sideslip, and this class sideslip reason is comparatively complicated, needs to solve at particular problem.And this method is brought, and is not only inefficiency, needs to adjust repeatedly experiment, especially may be because of lacking real-time, adopt remedial measures under the situation of established fact in accident often, thereby to cause the interruption of production be frequent thing.Simultaneously, because belt deviation, cause the wearing and tearing of belt limit, or even the phenomenon of belt fracture happens occasionally also, often also can increase unnecessary cost.Thereby, how at the control of mineral aggregate load-transfer device, increase the real-time of its control, it is the target that smelter is constantly made great efforts always, staff that it is on-the-spot and researcher also cut down the consumption of energy in the better method of controlling of unremitting effort ground research always, raise the efficiency, and accomplish environmental protection.But even to this day, still there is not a kind of compellent, efficient ways.
Summary of the invention
The automatic detection and the automatic guidance problem of nothing that the present invention exists for solving prior art provides anti-inclined to one side testing circuit of a kind of ore deposit hot stove furnace charge load-transfer device and method of inspection.
A kind of ore deposit hot stove furnace charge load-transfer device is prevented inclined to one side testing circuit, and this testing circuit comprises light source, first lens, second lens and opto-electronic pickup; Described light source is positioned at the top of first lens, and first lens and second lens lay respectively at the both sides up and down of furnace charge load-transfer device; Described opto-electronic pickup is positioned at the below of second lens.
A kind of ore deposit hot stove furnace charge load-transfer device is prevented inclined to one side method of inspection, and this method is realized by following steps:
Step 1: the light beam that light source sends focuses on the back by first lens and second lens and forms optical signal;
Step 2: opto-electronic pickup receiving step one described optical signal is converted to the electric signal of the degree of balance that is in operation of furnace charge load-transfer device position and furnace charge load-transfer device with optical signal, and described electric signal is sent to computer control system;
Step 3: step 2 is obtained the position of furnace charge load-transfer device to described computer control system and the electric signal of the degree of balance that the furnace charge load-transfer device is in operation detects; The position offset of described furnace charge load-transfer device was readjusted the position of furnace charge load-transfer device greater than 2% o'clock.
Principle of work of the present invention: testing circuit of the present invention is prevented detecting partially to ore deposit hot stove furnace charge load-transfer device, the light beam that light source produces forms optical signal by first lens and second lens behind the light focusing with light source, and is electric signal output by conversion of photoelectric sensor finally.After the machine control system is carried out signal conditioning as calculated,, realize the location of hot stove furnace charge load-transfer device position, ore deposit is accurately measured and controlled by whether balance detects in operational process to hot stove furnace charge load-transfer device position, ore deposit with to ore deposit hot stove furnace charge load-transfer device.
Beneficial effect of the present invention: the present invention controls the operation of ore deposit hot stove furnace charge transport tape and demonstration, tracking and the auto alarm of deviation position by computer control system, make the location parameter of furnace charge transport tape obtain showing and taking timely control, guarantee the safe in operation of furnace charge transport tape.The present invention has realized automatic detection, has guaranteed the balance of ore deposit hot stove furnace charge transport tape simultaneously, reduces reactive power consumption, has improved the fan-out capability of ore deposit hot stove furnace charge transport tape, has reduced the productive costs of enterprise.
Description of drawings
Fig. 1 is the anti-inclined to one side testing circuit structural representation of a kind of ore deposit of the present invention hot stove furnace charge load-transfer device;
Fig. 2 is the anti-inclined to one side testing circuit schematic diagram of a kind of ore deposit of the present invention hot stove furnace charge load-transfer device;
Fig. 3 for opto-electronic pickup in the anti-inclined to one side testing circuit of a kind of ore deposit of the present invention hot stove furnace charge load-transfer device to the furnace charge load-transfer device detection scheme drawing of balance that whether is in operation.
Among the figure: 1, furnace charge load-transfer device, 2, light source, 3, first lens, 4, second lens, 5, opto-electronic pickup.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1 and Fig. 2 present embodiment is described, a kind of ore deposit hot stove furnace charge load-transfer device is prevented inclined to one side testing circuit, and this circuit comprises light source 2, first lens 3, second lens 4 and opto-electronic pickup 5; Described light source 2 is positioned at the top of first lens 3, and first lens 3 and second lens 4 lay respectively at the both sides up and down of furnace charge load-transfer device 1; Described opto-electronic pickup 5 is positioned at the below of second lens 4.
The described light source 2 of present embodiment is LED infrared light or visible light luminotron; The material of described first lens 3 and second lens 4 is quartz glass or organic light transmissive material.
Opto-electronic pickup 5 described in the present embodiment is the optical semiconductor sensing device, and described optical semiconductor sensing device is for can select a kind of of photoconductive cell, photodiode or photo-transistor for use:
One, photoconductive cell: photoconductive cell belongs to the photoconductive effect device.Material commonly used has cadmium sulfide (CdS), cadmium selenide (CdSe), lead sulphide (PbS) etc.Lead sulphide has higher sensitivity to infrared light.Photoconductive cell optoelectronic semiconductor commonly used forms film on dielectric base, draw with electrode.For preventing that photo conductor from making moist sensitivity is reduced, tightly encapsulate with glass, only stay next light-struck optical window resistive element.Standardized production.The light characteristics of photoconductive cell is that the photoconductive cell value descends rapidly, is rendered as non-linear along with Illumination intensity increases.The spectral characteristics of photoconductive cell is that the photoconductive cell of different materials is different to the monochromatic response of different wave length.The EI characteristic of photoconductive cell is to be linear in certain illumination range; If the Illumination intensity difference, then the slope of photoconductive cell is also different.
Two, photodiode: photodiode is a kind of semiconductor devices that had not only had the semiconductor PN structure but also possessed photoelectric converting function.Its principle of work is based on photovoltaic effect.The EI characteristic of photodiode is similar to diode.Its spectral characteristics is the same with photoconductive cell.Its light characteristics is linear in certain limit.
Three, photo-transistor: photo-transistor is equivalent to be connected to the common aerotron of photodiode between base stage and collecting electrode.The principle of photo-transistor is fully identical with anti-photodiode on the lower side, and has Duoed the crystal triode of electric current amplification than photodiode.The spectral characteristics of photo-transistor is similar to photodiode.EI characteristic is identical with common aerotron shape.Its photocurrent increases with temperature build-up, and ascendant trend is faster than photodiode.
The specific embodiment two: in conjunction with Fig. 3 present embodiment is described, a kind of ore deposit hot stove furnace charge load-transfer device is prevented inclined to one side method of inspection, and this method is realized by following steps:
Step 1: the light beam that light source 2 sends focuses on the back by first lens 3 and second lens 4 and forms optical signal;
Step 2: opto-electronic pickup 5 receiving steps one described optical signal, and optical signal is converted to the electric signal of the degree of balance that furnace charge load-transfer device 1 position and furnace charge load-transfer device 1 be in operation; And described electric signal is sent to computer control system;
Step 3: step 2 is obtained the position of furnace charge load-transfer device 1 to described computer control system and the electric signal of the degree of balance that furnace charge load-transfer device 1 is in operation detects; The position offset of described furnace charge load-transfer device 1 was adjusted the position of furnace charge load-transfer device 1 greater than 2% o'clock.
In conjunction with Fig. 1, the stable curtage of described light source 2 outputs is incident to first lens 3 and second lens 4, and the light source 2 of illuminator can be laser or light-emitting diode; Convert intensity variations the variation of electric signal to, promptly opto-electronic conversion is finished by Fig. 2.When being subjected to illumination, described opto-electronic pickup 5 is transformed into the variation of voltage difference pari passu according to intensity variations.Entire circuit is made up of three parts: light-to-current inversion and amplifier section, adjust and output, and send into A/D conversion and display part after handling.Described photoconductive cell is made of R1, R3, and forms dividing potential drop bridge circuit, its U with R2, R4
A, U
BThe difference of the voltage of point is Δ U=U
A± U
B, described U
A, U
BAn end be connected respectively to amplifier A, by two resistance R and U
A, U
BAcquisition furnace charge load-transfer device is bright, the detection voltage difference of dark signal; The deviation delta U=U of its voltage
A± U
BRepresent the degree of deviation of load-transfer device, handle the position deviation that obtains load-transfer devices by opto-electronic pickup 5 according to position probing by computer control system with time sequence number, not being transferred band opto-electronic pickup 5 parts of blocking is the clear zone, realizes the whether detection of balance of furnace charge load-transfer device.Represent the dark space in the course of the work in conjunction with furnace charge load-transfer device 1 shown in Figure 3, promptly by Δ U=U
A± U
BCalculate its deviation, to guarantee in the electric furnace working process position balance of furnace charge load-transfer device.The lateral runout location parameter that guarantees ore deposit hot stove furnace charge load-transfer device 1 simultaneously can show on computer control system and control.
The present invention is the actual items in conjunction with the hot stove in ore deposit of Jilin ferro-alloy limited liability company of Sinosteel Corporation, adopt photoelectron technology to detect partially to ore deposit hot stove furnace charge transport tape is anti-, its parameter is an online measuring technique, based on the electromechanical integration complex art, modern control technology is carried out data collection and analysis to the operating mode of anti-detection partially of ore deposit hot stove furnace charge transport tape and feeding, pass through computer control system, control the operation of ore deposit hot stove furnace charge transport tape, guarantee the balance of ore deposit hot stove furnace charge transport tape, reduce reactive power consumption, improve the fan-out capability of ore deposit hot stove furnace charge transport tape, reduce enterprise's productive costs.
Claims (6)
1. an ore deposit hot stove furnace charge load-transfer device is prevented inclined to one side testing circuit, it is characterized in that, this circuit comprises light source (2), first lens (3), second lens (4) and opto-electronic pickup (5), described light source (2) is positioned at the top of first lens (3), and first lens (3) and second lens (4) lay respectively at the both sides up and down of furnace charge load-transfer device (1); Described opto-electronic pickup (5) is positioned at the below of second lens (4).
2. a kind of ore deposit according to claim 1 hot stove furnace charge load-transfer device is prevented inclined to one side testing circuit, it is characterized in that described opto-electronic pickup (5) is the optical semiconductor sensing device.
3. a kind of ore deposit according to claim 1 and 2 hot stove furnace charge load-transfer device is prevented inclined to one side testing circuit, it is characterized in that described opto-electronic pickup (5) is photoconductive cell or photodiode.
4. a kind of ore deposit according to claim 1 hot stove furnace charge load-transfer device is prevented inclined to one side testing circuit, it is characterized in that, described light source (2) is LED infrared light or visible light luminotron.
5. a kind of ore deposit according to claim 1 hot stove furnace charge load-transfer device is prevented inclined to one side testing circuit, it is characterized in that, the material of described first lens (3) and second lens (4) is quartz glass or organic light transmissive material.
6. based on the anti-inclined to one side method of inspection of the described a kind of ore deposit of claim 1 hot stove furnace charge load-transfer device, it is characterized in that this method is realized by following steps:
Step 1: the light beam that light source (2) sends focuses on the back by first lens (3) and second lens (4) and forms optical signal;
Step 2: opto-electronic pickup (5) receiving step one described optical signal, and optical signal is converted to the electric signal of the degree of balance that furnace charge load-transfer device (1) position and furnace charge load-transfer device (1) be in operation; And described electric signal is sent to computer control system;
Step 3: step 2 is obtained the position of furnace charge load-transfer device (1) to described computer control system and the electric signal of the degree of balance that furnace charge load-transfer device (1) is in operation detects; The position offset of described furnace charge load-transfer device (1) was adjusted the position of furnace charge load-transfer device (1) greater than 2% o'clock.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110053910 CN102152952B (en) | 2011-03-07 | 2011-03-07 | Deviation-preventing detection circuit and detection method for furnace charge conveyer belt of electric arc furnace |
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| CN 201110053910 CN102152952B (en) | 2011-03-07 | 2011-03-07 | Deviation-preventing detection circuit and detection method for furnace charge conveyer belt of electric arc furnace |
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| CN102152952A true CN102152952A (en) | 2011-08-17 |
| CN102152952B CN102152952B (en) | 2013-04-17 |
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| CN106956906A (en) * | 2017-02-15 | 2017-07-18 | 克莱门斯工业传感器南京有限公司 | Intelligent deviation switch and its monitoring method with enlarger |
| CN108680761A (en) * | 2018-05-14 | 2018-10-19 | 上海师范大学 | A kind of intelligence belt edges damaged detection and positioning system in real time |
| CN110030933A (en) * | 2019-05-28 | 2019-07-19 | 杭州琼网计算机网络有限公司 | Optical centering deviation detection device based on change in resistance principle |
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Cited By (6)
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| CN106956906B (en) * | 2017-02-15 | 2023-01-13 | 克莱门斯工业传感器南京有限公司 | Intelligent deviation switch with amplifying mechanism and monitoring method thereof |
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| CN110030933A (en) * | 2019-05-28 | 2019-07-19 | 杭州琼网计算机网络有限公司 | Optical centering deviation detection device based on change in resistance principle |
| CN110030933B (en) * | 2019-05-28 | 2020-04-28 | 杭州琼网计算机网络有限公司 | Optical centering deviation detection device based on resistivity change principle |
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| CN102152952B (en) | 2013-04-17 |
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