CN103433443A - Method and device for preparing amorphous strip - Google Patents
Method and device for preparing amorphous strip Download PDFInfo
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- CN103433443A CN103433443A CN2013103827721A CN201310382772A CN103433443A CN 103433443 A CN103433443 A CN 103433443A CN 2013103827721 A CN2013103827721 A CN 2013103827721A CN 201310382772 A CN201310382772 A CN 201310382772A CN 103433443 A CN103433443 A CN 103433443A
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Abstract
The invention relates to a method and device for preparing an amorphous strip. The method includes the steps that a water temperature detecting signal is obtained, a water temperature control signal is generated according to the water temperature detecting signal, and therefore temperature of water flowing through a crystallizer is kept constant; a flow detecting signal is collected, a flow adjusting signal is generated according to the flow detecting signal to carry out variable frequency control over a water pump, and therefore the flow of the water passing through the crystallizer is kept constant; a distance detecting signal between a nozzle and the crystallizer is collected, and a distance adjusting signal is generated according to the distance detecting signal and an objective value of the thickness of the strip to adjust the position of the nozzle. According to the method and device for preparing the amorphous strip, a PLC is adopted for automatically control the cooling water temperature, the flow and the distance between the nozzle and the crystallizer, so that control over strip preparation is more accurate.
Description
Technical field
The present invention relates to the amorphous band preparing technical field, relate in particular to a kind of preparation method and device of amorphous band.
Background technology
In existing amorphous band preparation technology, while preparing amorphous thin ribbon, molten steel is upper to the crystallizer (copper roller) of High Rotation Speed by nozzle ejection usually, and moment is frozen into certain thickness strip.The control of tape thickness be by manually-operated spray with the nozzle of dolly and the distance between crystallizer, in conjunction with the rotating speed of crystallizer and discharge, realize.Manually-operated can inevitably bring operate miss usually, affects the accuracy of thickness of strip.Simultaneously, cooling water adopts cooling tower circulation usually, so water temperature is subject to ectocine larger, is unfavorable for the stable of band chilling temperature.
Summary of the invention
The present invention is directed to the defect of prior art, a kind of preparation method and device of amorphous band are provided, realize that the extraction system of automation is with the every monitor data in process, by the PLC module controls, make spray with the variable that needs in process to control as: the control variables such as the distance of crystallizer rotating speed, discharge, water temperature, mould temperature, thickness of strip, nozzle and crystallizer all can realize PID automation control.Reduce the error that manual operation causes, avoid maloperation, improved the strip quality of preparation.
First aspect, the invention provides a kind of preparation method of amorphous band, and described method comprises:
Obtain the water temperature detection signal, according to described water temperature detection signal, generate the water temperature control signal, make the water temperature that flows through crystallizer keep constant;
Gather flow detecting signal, produce flow regulating signal according to described flow detecting signal water pump is carried out to VFC, use so that the water flow of described crystallizer keeps constant;
Gather between nozzle and described crystallizer apart from detection signal, generate distance adjustment signal, the position of adjustment nozzle according to described apart from detection signal and thickness of strip desired value; Wherein, described thickness of strip desired value is what preset and store.
Preferably, described according to described water temperature detection signal generation water temperature control signal, make the water temperature that flows through crystallizer keep constant being specially:
The current water temperature and the preset standard water temperature that according to described water temperature detection signal, obtain compare, and according to comparative result, generate described water temperature control signal;
Send described water temperature control signal to water cooling plant, control in order to described water cooling plant the water temperature that flows through crystallizer and keep constant.
Preferably, according to described, apart from detection signal and thickness of strip desired value, generate distance adjustment signal, the position of adjusting nozzle is specially:
Go out the distance between described nozzle and described crystallizer according to described apart from the detection signal correspondence;
Compare with described thickness of strip desired value according to distance, and adjust the position of nozzle according to the result of described comparison;
When described distance is less than described thickness of strip desired value, generate described distance and adjust signal for adjusting upward the position of nozzle, increase the distance between nozzle and crystallizer;
When described distance is greater than described thickness of strip desired value, generate described distance and adjust signal for adjusting the position of nozzle downwards, reduce the distance between nozzle and crystallizer.
Second aspect, the invention provides a kind of preparation facilities of amorphous band, comprising: PLC control module, spray hired car, nozzle, crystallizer, water cooling plant, water pump, flowmeter and calibrator;
Flowmeter, for detection of the water flow of described crystallizer, and the generation flow detecting signal sends to the PLC control module;
Water pump, for according to flow regulating signal, carrying out VFC, provide the water of constant flow rate to described water cooling plant;
Water cooling plant, keep constant for control the water temperature that flows through crystallizer according to the water temperature control signal, and generation water temperature detection signal sends to the PLC control module;
The spray hired car, for carrying described nozzle, and adjust signal according to distance and adjust the distance between described nozzle and described crystallizer;
Nozzle, for spraying molten steel to described crystallizer;
Crystallizer, for forming band by described molten steel in the quick cooled and solidified of crystallizer surface;
Calibrator, for measuring in real time the distance between described nozzle and described crystallizer, and generation sends the PLC control module to apart from detection signal;
The PLC control module, for according to described flow detecting signal, water temperature detection signal with produce flow regulating signal, water temperature control signal and distance apart from detection signal and adjust signal and send respectively water pump, water cooling plant and spray hired car to.
Preferably, described PLC control module specifically comprises the traffic monitoring module, for:
Gather flow detecting signal, produce flow regulating signal according to described flow detecting signal water pump is carried out to VFC, use so that the water flow of described crystallizer keeps constant.
Preferably, described PLC control module specifically comprises the water temperature monitoring module, for:
The current water temperature and the preset standard water temperature that according to described water temperature detection signal, obtain compare, and according to comparative result, generate described water temperature control signal;
Send described water temperature control signal to water cooling plant, control in order to described water cooling plant the water temperature that flows through crystallizer and keep constant.
Preferably, described PLC control module specifically comprises the distance detection module, for:
Go out the distance between described nozzle and described crystallizer according to described apart from the detection signal correspondence;
Compare with described thickness of strip desired value according to distance, and adjust the position of nozzle according to the result of described comparison;
When described distance is less than described thickness of strip desired value, generate described distance and adjust signal for adjusting upward the position of nozzle, increase the distance between nozzle and crystallizer;
When described distance is greater than described thickness of strip desired value, generate described distance and adjust signal for adjusting the position of nozzle downwards, reduce the distance between nozzle and crystallizer.
So the preparation method of the amorphous band of the embodiment of the present invention and device, adopt PLC automatically to control the spacing between coolant water temperature, flow and nozzle and crystallizer, the system band controlled more accurate, eliminated the error that manual operation brings.
The accompanying drawing explanation
Preparation method's flow chart of the amorphous band that Fig. 1 provides for the embodiment of the present invention;
The preparation facilities schematic diagram of the amorphous band that Fig. 2 provides for the embodiment of the present invention.
The specific embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
The preparation method of the amorphous band that the embodiment of the present invention provides, adopt the extraction system of automation with the every monitor data in process, by the PLC module controls, make spray with the variable that needs in process to control as: the control variables such as the distance of crystallizer rotating speed, discharge, water temperature, mould temperature, thickness of strip, nozzle and crystallizer all can realize PID automation control.Reduce the error that manual operation causes, avoid maloperation, improved the strip quality of preparation.
Preparation method's flow chart of the amorphous band that Fig. 1 embodiment of the present invention provides, specifically comprise the steps:
The standard water temperature of wherein, producing the needed cooling water of band is preset and is stored in the PLC control module.The PLC control module compares according to the water temperature detection signal obtained and default standard water temperature, according to comparative result, generates the water temperature control signal;
Send the water temperature control signal to water cooling plant, control in order to water cooling plant the water temperature that flows through crystallizer and keep constant.
Wherein, the thickness of strip desired value is what preset and store.
What according to the distance between gaging nozzle and crystallizer, obtain sends the PLC control module to apart from detection signal, the distance in the PLC control module between corresponding delivery nozzle and crystallizer;
The distance gone out according to correspondence compares with the thickness of strip desired value that presets and be stored in the PLC control module, and adjusts the position of nozzle according to result relatively;
When this distance is less than the thickness of strip desired value, generate distance and adjust signal, for adjusting upward the position of nozzle, increase the distance between nozzle and crystallizer;
When this distance is greater than the thickness of strip desired value, generate distance and adjust signal, for adjusting the position of nozzle downwards, reduce the distance between nozzle and crystallizer.
The preparation method of the amorphous band of the present embodiment below is described with a concrete example.
The target thickness that in this example, need to prepare band is 25 μ m.
At first gathering the water temperature detection signal, is 34 ℃ according to the corresponding current water temperature of water temperature detection signal.Be 31.5 ℃ and preset needed temperature in the PLC control module, allow 5% deviation, PLC control module generation water temperature control signal is adjusted the temperature of the cooling water in the crystallizer of flowing through, and makes it constant in 31.5 ℃.The water temperature signal collection can be real-time, also can set certain time interval, thus the time constantly water temperature is revised, make it constant in needed temperature all the time.
Secondly, the water flow of crystallizer is controlled, in real time flow velocity is detected by flow detection, water flow is remained in the scope needed, as 485m
3/ h～515m
3/ h.The flow gone out when flow monitoring signal correspondence exceeds in the time of maybe can not reaching in this scope, and the PLC control module produces corresponding flow control signal water pump is carried out to VFC, thereby guarantees that the water flow of crystallizer continues constant.
Finally, distance between nozzle and crystallizer is detected, to send the PLC control module to apart from detection signal, correspondence goes out the distance between current nozzle and crystallizer, 23 μ m for example, the generation of PLC control module, apart from control signal, is controlled spray hired car lift-launch nozzle and is moved up together, and the distance between increase and crystallizer is to 25 μ m.Thereby the thickness of the band made is 25 μ m, consistent with target thickness.
In addition, the crystallizer rotating speed also can be preset in the PLC control module, thereby realizes the automatic control of rotating speed and keep constant in band process processed.
The preparation method of the amorphous band that the embodiment of the present invention provides, adopt the extraction system of automation with the every monitor data in process, by the PLC module controls, make spray with the variable that needs in process to control as: the control variables such as the distance of crystallizer rotating speed, discharge, water temperature, mould temperature, thickness of strip, nozzle and crystallizer all can realize PID automation control.Reduce the error that manual operation causes, avoid maloperation, improved the strip quality of preparation.
Accordingly, the embodiment of the present invention also provides a kind of preparation facilities of amorphous band, in order to the preparation method who realizes that above-described embodiment provides.Figure is as shown in 2, and described device comprises:
PLC control module 1, spray hired car 2, nozzle 3, nozzle 4, water cooling plant 5, water pump 6, flowmeter 7 and calibrator 8;
Water pump 6, for according to flow regulating signal, carrying out VFC, provide the water of constant flow rate to described water cooling plant 5;
Water cooling plant 5, keep constant for control the water temperature that flows through crystallizer 4 according to the water temperature control signal, and generation water temperature detection signal sends to PLC control module 1; Water cooling plant 5 specifically can be realized by air conditioner and chilled water tank two parts.
Spray hired car 2, for carrying described nozzle 3, and adjust signal according to distance and adjust the distance between described nozzle 3 and described crystallizer 4;
Nozzle 3, for spraying molten steel to described crystallizer 4;
PLC control module 1, for according to described flow detecting signal, water temperature detection signal with produce flow regulating signal, water temperature control signal and distance apart from detection signal and adjust signal and send respectively water pump 6, water cooling plant 5 and spray hired car 2 to.
Wherein PLC control module 1 specifically comprises traffic monitoring module 11, water temperature monitoring module 12 and distance detection module 13.
Gather flow detecting signal, produce flow regulating signal according to described flow detecting signal water pump 6 is carried out to VFC, use so that the water flow of described crystallizer 4 keeps constant.
Water temperature monitoring module 12 specifically for:
The current water temperature and the preset standard water temperature that according to described water temperature detection signal, obtain compare, and according to comparative result, generate described water temperature control signal;
Send described water temperature control signal to water cooling plant 5, control in order to described water cooling plant 5 water temperature that flows through crystallizer 4 and keep constant.
According to the described distance that goes out 4, described nozzle 3 and described crystallizer apart from the detection signal correspondence;
Compare with described thickness of strip desired value according to distance, and adjust the position of nozzle 3 according to the result of described comparison;
When described distance is less than described thickness of strip desired value, generate described distance and adjust signal for adjusting upward the position of nozzle 3, increase the distance of 4, nozzle 3 and crystallizer;
When described distance is greater than described thickness of strip desired value, generate described distance and adjust signal for adjusting the position of nozzle 3 downwards, reduce the distance of 4, nozzle 3 and crystallizer.
In addition, PLC control module 1 can also comprise the rotational speed control module 14 of crystallization control device rotating speed, for the rotating speed of crystallization control device 4, makes it to remain constant in band process processed.
The specific implementation of PLC control module 1 can comprise PLC switch board etc.
The preparation facilities of the amorphous band that the embodiment of the present invention provides, adopt the extraction system of automation with the every monitor data in process, by the PLC module controls, make spray with the variable that needs in process to control as: the control variables such as the distance of crystallizer rotating speed, discharge, water temperature, mould temperature, thickness of strip, nozzle and crystallizer all can realize PID automation control.Reduce the error that manual operation causes, avoid maloperation, improved the strip quality of preparation.
The professional should further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, composition and the step of each example described according to function in the above description in general manner.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.
The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random access memory (RAM), internal memory, read-only storage (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
The above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. the preparation method of an amorphous band, is characterized in that, described method comprises:
Obtain the water temperature detection signal, according to described water temperature detection signal, generate the water temperature control signal, make the water temperature that flows through crystallizer keep constant;
Gather flow detecting signal, produce flow regulating signal according to described flow detecting signal water pump is carried out to VFC, use so that the water flow of described crystallizer keeps constant;
Gather between nozzle and described crystallizer apart from detection signal, generate distance adjustment signal, the position of adjustment nozzle according to described apart from detection signal and thickness of strip desired value; Wherein, described thickness of strip desired value is what preset and store.
2. method according to claim 1, is characterized in that, described according to described water temperature detection signal generation water temperature control signal, makes the water temperature that flows through crystallizer keep constant being specially:
The current water temperature and the preset standard water temperature that according to described water temperature detection signal, obtain compare, and according to comparative result, generate described water temperature control signal;
Send described water temperature control signal to water cooling plant, control in order to described water cooling plant the water temperature that flows through crystallizer and keep constant.
3. method according to claim 1, is characterized in that, according to described, apart from detection signal and thickness of strip desired value, generates distance adjustment signal, and the position of adjusting nozzle is specially:
Go out the distance between described nozzle and described crystallizer according to described apart from the detection signal correspondence;
Compare with described thickness of strip desired value according to distance, and adjust the position of nozzle according to the result of described comparison;
When described distance is less than described thickness of strip desired value, generate described distance and adjust signal for adjusting upward the position of nozzle, increase the distance between nozzle and crystallizer;
When described distance is greater than described thickness of strip desired value, generate described distance and adjust signal for adjusting the position of nozzle downwards, reduce the distance between nozzle and crystallizer.
4. the preparation facilities of an amorphous band, is characterized in that, described device comprises: PLC control module, spray hired car, nozzle, crystallizer, water cooling plant, water pump, flowmeter and calibrator;
Flowmeter, for detection of the water flow of described crystallizer, and the generation flow detecting signal sends to the PLC control module;
Water pump, for according to flow regulating signal, carrying out VFC, provide the water of constant flow rate to described water cooling plant;
Water cooling plant, keep constant for control the water temperature that flows through crystallizer according to the water temperature control signal, and generation water temperature detection signal sends to the PLC control module;
The spray hired car, for carrying described nozzle, and adjust signal according to distance and adjust the distance between described nozzle and described crystallizer;
Nozzle, for spraying molten steel to described crystallizer;
Crystallizer, for forming band by described molten steel in the quick cooled and solidified of crystallizer surface;
Calibrator, for measuring in real time the distance between described nozzle and described crystallizer, and generation sends the PLC control module to apart from detection signal;
The PLC control module, for according to described flow detecting signal, water temperature detection signal with produce flow regulating signal, water temperature control signal and distance apart from detection signal and adjust signal and send respectively water pump, water cooling plant and spray hired car to.
5. device according to claim 4, is characterized in that, described PLC control module specifically comprises the traffic monitoring module, for:
Gather flow detecting signal, produce flow regulating signal according to described flow detecting signal water pump is carried out to VFC, use so that the water flow of described crystallizer keeps constant.
6. device according to claim 4, is characterized in that, described PLC control module specifically comprises the water temperature monitoring module, for:
The current water temperature and the preset standard water temperature that according to described water temperature detection signal, obtain compare, and according to comparative result, generate described water temperature control signal;
Send described water temperature control signal to water cooling plant, control in order to described water cooling plant the water temperature that flows through crystallizer and keep constant.
7. device according to claim 4, is characterized in that, described PLC control module specifically comprises the distance detection module, for:
Go out the distance between described nozzle and described crystallizer according to described apart from the detection signal correspondence;
Compare with described thickness of strip desired value according to distance, and adjust the position of nozzle according to the result of described comparison;
When described distance is less than described thickness of strip desired value, generate described distance and adjust signal for adjusting upward the position of nozzle, increase the distance between nozzle and crystallizer;
When described distance is greater than described thickness of strip desired value, generate described distance and adjust signal for adjusting the position of nozzle downwards, reduce the distance between nozzle and crystallizer.
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| CN115555527A (en) * | 2022-11-16 | 2023-01-03 | 常州创明磁性材料科技有限公司 | Pressure regulating system for crystallizer and control method thereof |
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