CN203484632U - Fixed length optimization cutting apparatus for continuous casting tail blank - Google Patents
Fixed length optimization cutting apparatus for continuous casting tail blank Download PDFInfo
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- CN203484632U CN203484632U CN201320289647.1U CN201320289647U CN203484632U CN 203484632 U CN203484632 U CN 203484632U CN 201320289647 U CN201320289647 U CN 201320289647U CN 203484632 U CN203484632 U CN 203484632U
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Abstract
The utility model belongs to steel-making field, and specially relates to a fixed length optimization cutting apparatus for a continuous casting tail blank. The fixed length optimization cutting apparatus comprises an intermediate steel ladle and a continuous caster connected together, and a continuous casting master controller for calculating the length of the tail blank and providing optimized length fixation for the tail blank. The continuous caster comprises a steel pipe and a cutting dooly which is used for cutting the steel billet in the steel pipe and is electrically connected with the continuous casting master controller. The molten steel outlet of the intermediate steel ladle is provided with a plug rod, the bottom of the plug rod is provided with a crystallizer, the crystallizer is provided with a liquid level detector used for detecting the liquid level of molten steel and is electrically connected with the continuous casting master controller, and the intermediate steel ladle is connected with the steel pipe through the crystallizer. According to the fixed length optimization cutting apparatus, the computer program of the program controller of the continuous casting master controller is employed for fixed length optimization cutting of the continuous casting tail blank, and under the condition that the amount of molten steel is not equal to integer multiples of the casting blank with fixed length, superfluous molten steel less than single time of the casting blank with fixed length is simply, high efficiently and equally distributed to a plurality of qualified casting blanks.
Description
Technical field
The utility model belongs to field of steel-making, is specifically related to a kind of continuous casting tail billet optimized sizing cutter sweep.
Background technology
Continuous casting refers to that the molten steel being flow down by middle ladle becomes steel billet enter continuous casting machine tension leveling roller-way (Ji Gang road) and made finished product steel billet by straightening after crystallizer crystallization, after continuous casting tail billet refers to that the every stream of conticaster (every stream refer to carry out cast steel by middle ladle to conticaster steel road continuous pouring molten steel at every turn) stops watering, last steel billet after flame cutting machine scale cutting section.When each waters time throwing and finishes, every stream all can produce tail base.150 billet casters of supposing two machine second-rate (the second-rate finger of two machines one in the middle of ladle have two conticasters) connect the molten steel that waters 100 tons, according to every about 700kg of strand 4M() cut lengths cut.Every stream can be pulled out 71.428 qualified steel billets in theory, and being exactly so 71 is qualified products, because the tail base of 0.428 does not reach cut lengths requirement, can not be for post-production, and can only work as steel scrap melts down processing, causes waste.Suppose to produce every day 2 such tail bases, within 1 year, just can cause the waste of 179.76 tons of qualified products, when steel scrap melts down, process with approximately 0.17 ten thousand yuan of calculating of increase cost per ton, be equivalent to the loss of 30.559 ten thousand yuan.
Traditional continuous casting tail billet Optimized model has two kinds: a kind of is by estimation, to cast stream order remaining time to stop casting stream.This method need to frequently gather pulling rate from base level, if pulling rate fluctuation is abnormal, calculates accuracy and greatly reduces.Another is to judge whether ladle molten steel amount is the computational methods of scale multiple.This computational methods need to gather ladle gravimetric value in advance, and precision is poor in actual applications, are difficult to well complete the work of optimization.In actual production process, molten steel amount is quantitative in smelting early stage, be difficult in later stage continuous-cast blank, the molten steel that is not scale integral multiple is distributed into the steel billet of integral multiple, optimal result be nothing but by calculate the molten steel that is finally less than a single times of scale remain in the middle of in ladle, so can only say the suitable lumber recovery that improved.Traditional method need to be got hold of the order of closing casting stream and the time of closing stopper accurately, stops in the process of watering, and need operative employee to reduce pulling rate, ending base, and note crystallizer liquid steel level, be therefore a complicated process.If also require stopper operative employee to hold some flow processs of optimizing tail base, manual operation level had relatively high expectations.In the production of stainless steel continuous casting, because some special steel grade is had relatively high expectations to pulling rate, the situation of bleedout happens occasionally.If occur in bleedout in casting cycle, while the emergency episode such as damming, traditional method has all been difficult to Optimization Work.
Utility model content
The purpose of this utility model is to provide a kind of operation easier low for solving the problems of the technologies described above, and tail base effect of optimization utilizes computer program to carry out the device of continuous casting tail billet optimized sizing cutting preferably.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs:
A kind of continuous casting tail billet optimized sizing cutter sweep, comprise the middle ladle and the conticaster that are connected, also comprise for calculating tail base length and tail base being optimized to the continuous casting main control device of scale, described conticaster comprises steel road and for steel billet in cutting of steel road the Cutting dolly that is electrically connected with continuous casting main control device, in the middle of described, the molten steel outlet place of ladle is provided with stopper, described stopper bottom is provided with crystallizer, on described crystallizer, be provided with for detection of molten steel liquid level the liquid level detector that is electrically connected with continuous casting main control device, in the middle of described, ladle is connected with described steel road by described crystallizer.
As preferably, described main control device comprises the movement locus of the molten steel liquid level data that send over for receiving liquid bit detector that are mutually electrically connected and Cutting dolly and calculates the continuous casting primary control program controller of tail base length, be provided with start button for the continuous casting master control display controlling tail base optimal way and whether put into production and be electrically connected with Cutting dolly and control the cutting operation display of single times of scale of steel billet.
On continuous casting master control display, be provided with starting tail base optimizer knob, by artificial judgment manual operation, pressing this knob comes order conticaster to carry out the optimization of tail base, otherwise conticaster carries out continuous casting routinely not to be optimized and to divide equally tail base, controllability is high, can select optimizer whether to drop into according to needs of production, flexible operation.
By being electrically connected of the said equipment, the result of being calculated by computer program in continuous casting primary control program controller directly can be sent on continuous casting master control display and cutting operation display, instruct operating personnel to cut, also can be that staff in continuous casting master-control room sees after the result of calculation showing on continuous casting master control display, this result be sent to cutting operation display and instruct operating personnel to cut.
As preferably, described Cutting dolly and described continuous casting primary control program controller and cutting operation display are electrically connected.
As preferably, described conticaster also comprises the initial bit limiting component for positional dissection dolly cutting initial position.
As preferably, described in the middle of ladle be connected with two conticasters.
This device is that its whole principle steps is as follows by utilizing the computer program of continuous casting primary control program controller to carry out the cutting of continuous casting tail billet optimized sizing:
One, on continuous casting master control display, select continuous casting tail billet optimizer to open.
Two, in the middle of closing, after the stopper of ladle, by the liquid level detector on the crystallizer of ladle below in the middle of being connected in, molten steel being detected drops to below normal work liquid level, and this signal is sent to continuous casting primary control program controller, signal casting finishes, continuous casting primary control program controller is received after signal, primary control program controller starts to follow the tracks of the data that liquid level detector sends and records crystallizer mouth and to the distance between Cutting dolly from stopper, cut out and start to get back to for the first time the variable quantity L1 between initial position to Cutting dolly, regular length LO and L1 that continuous casting primary control program controller cuts initial position according to crystallizer mouth to Cutting dolly again calculate the uncut steel billet length L 2 of residue, computing formula is: L2=L0-L1.According to the tail base length L 3 off quality that needs in L2 and technique to remove, calculate and need to optimize steel billet length L 4 again, computing formula is: L4=L2-L3.
The technology controlling and process claimed range of the residue steel billet that three, continuous casting primary control program controller basis is set in advance and L4 compare to optimize and draw the new single times of scale L of steel billet, and L is sent on continuous casting master control display and cutting operation display and shown;
Four, cutting operation personnel complete the cutting of residue steel billet according to the new single times of scale L of steel billet.
When each last stove molten steel casting watering time is complete, middle ladle stopper is closed, get mould liquid level dropping signal, show that crystallizer mouth is to the uncut steel billet length of Cutting dolly below residue, and be optimized calculating, after making it remove last defective steel billet length, divide equally again, in the allowed band that the cut lengths obtaining is controlled in technological requirement.
Because afterbody molten steel residue is more or molten steel purity is inadequate, in general technology, the final stage 1-1.2 rice length of every stream molten steel is that L3 is defective section, needs excise and melt down, so the length of L3 can not count tail base length, is optimized.
The L4 calculating is compared with the permission length range that requirement is set according to technology controlling and process in advance, this length range be according to the cut lengths of conticaster Gang road length and different size steel billet in conjunction with long-term actual cutting operation experience gained, with X1, X2, X3, represent each end points of length range and compare with L4 the number N that show that tail base can cut below.
If L4 >=X1, N=Y1;
If X2≤L4 < is X1, N=Y2;
If X3≤L4 < is X2, N=Y3;
The single times of scale scope that the value of X1, X2, X3 need require according to technology controlling and process get occur simultaneously calculate Y1, Y2, Y3 is integer.
For example: the length L 2 of residue steel billet is 33.2 meters, the length L 3 of defective tail base is 1.2 meters, L4 is 32 meters, technology controlling and process requires the permission length range of setting to have when L4 is between 30.4-33.6, N=8, tail base is cut 8, and every is 4 meters, the qualified blank scale of technological requirement, between 3.8-4.2 rice, meets scale requirement.
Continuous casting primary control program controller is usingd a scan period t as chronomere, the pulling rate that in this chronomere, steel billet is pulled is v, according to t and v, can calculate the distance that steel billet is pulled within this cycle, L1 obtains for the distance by steel billet is pulled in a plurality of scan period t is cumulative, and computing formula is: L1=∑ (V1 * t+V2 * t+ ... + Vn * t).
By above-mentioned, show that from mould liquid level detector, molten steel liquid level being detected drops to below normal work liquid level, to Cutting dolly, get back to for the first time initial position execution cutting time T used and formed by n scan period t, that is: T=n * t.
In sum, the utlity model has following beneficial effect:
1, the utility model is simple, solved efficiently in the situation that molten steel amount is not equal to strand scale integral multiple, in advance by the unnecessary molten steel amount mean allocation that is less than a single times of scale in branched qualified strand, and tail base optimized sizing diced system is by being drawn forward the dynamic monitoring of moving pulling rate and Billet Remainder length in steel billet Gang road, the Cutting Length that last several blanks are carried out within the scope of scale regulates, to reach the length of last several tail bases, be accurately controlled in claimed range, precision is higher, effectively solved tail base problem different in size, realize raising lumber recovery truly.
2, the utility model without complicated control pulling rate, stop casting the stream time and add operating process such as the protection quantity of slag etc., and be not subject to improperly to stop watering, dam, liquid steel temperature is low etc., and working condition affects, and still can normally complete Optimization Work.If the utility model is to using stopper to close post crystallization device liquid level and drop to certain value as optimize starting foundation, in conjunction with flame cutting machine after this, play point of contact signal and start automatic calculating, so for stopper operative employee without any impact, in operation also without making any change, running into the situations such as bleedout, also can normally complete Optimization Work, without improving the required precision of other equipment and operating personnel's operation requirements.
3, the utlity model has the features such as Computing Principle is simple, and data acquisition is reliable, and precise control is high, easy to operate.
4, the utility model is simple in structure, cost less investment, and effective, lumber recovery is high, has greatly reduced the qualified steel billet amount of melting down, and has reduced production cost, has improved production efficiency.
Accompanying drawing explanation
Fig. 1 is conticaster work schematic diagram;
Fig. 2 is that tail base is optimized schematic diagram;
Fig. 3 is that tail base is optimized calculation flow chart;
Ladle in the middle of 1-in figure, 2-Gang road, 21-Cutting dolly, 3-stopper, 4-crystallizer, 41-liquid level detector, 22-initial bit limiting component.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make to the present embodiment the modification that there is no creative contribution as required after reading this description, but as long as within the scope of claim of the present utility model, are all subject to the protection of Patent Law.
Embodiment:
A kind of continuous casting tail billet optimized sizing cutter sweep, comprise the middle ladle 1 and the conticaster that are connected, also comprise for calculating tail base length and tail base being optimized to the continuous casting main control device of scale, described conticaster comprises steel road 2 and for the interior steel billet in cutting of steel road 2 Cutting dolly 21 that is electrically connected with continuous casting main control device, in the middle of described, the molten steel outlet place of ladle 1 is provided with stopper 3, described stopper 3 bottoms are provided with crystallizer 4, on described crystallizer 4, be provided with for detection of molten steel liquid level the liquid level detector 41 that is electrically connected with continuous casting main control device, in the middle of described, ladle 1 is connected with described steel road 2 by described crystallizer 4.
Main control device comprises the movement locus of the molten steel liquid level data that send over for receiving liquid bit detector 41 that are mutually electrically connected and Cutting dolly 21 and calculates the continuous casting primary control program controller of tail base length, be provided with start button for the continuous casting master control display controlling tail base optimal way and whether put into production and be electrically connected with Cutting dolly and control the cutting operation display of single times of scale of steel billet.
Cutting dolly 21 is electrically connected with described continuous casting primary control program controller and cutting operation display
Conticaster also comprises the initial bit limiting component 22 for positional dissection dolly 21 cutting initial positions.
Middle ladle 1 is connected with two conticasters.Be traditional second-rate conticaster of two machines.This device is applicable to equally the conticaster of other models, i.e. the first-class conticaster of a machine etc.
This device is that its whole principle steps is as follows by utilizing the computer program of continuous casting primary control program controller to carry out the cutting of continuous casting tail billet optimized sizing:
One, on continuous casting master control display, select continuous casting tail billet optimizer to open.
Two, in the middle of closing, after the stopper of ladle, by the liquid level detector on the crystallizer of ladle below in the middle of being connected in, molten steel being detected drops to below normal work liquid level, and this signal is sent to continuous casting primary control program controller, signal casting finishes, continuous casting primary control program controller is received after signal, primary control program controller starts to follow the tracks of the data that liquid level detector sends and records crystallizer mouth and to the distance between Cutting dolly from stopper, cut out and start to get back to for the first time the variable quantity L1 between initial position to Cutting dolly, regular length LO and L1 that continuous casting primary control program controller cuts initial position according to crystallizer mouth to Cutting dolly again calculate the uncut steel billet length L 2 of residue, computing formula is: L2=L0-L1.According to the tail base length L 3 off quality that needs in L2 and technique to remove, calculate and need to optimize steel billet length L 4 again, computing formula is: L4=L2-L3.
The technology controlling and process claimed range of the residue steel billet that three, continuous casting primary control program controller basis is set in advance and L4 compare to optimize and draw the new single times of scale L of steel billet, and L is sent on continuous casting master control display and cutting operation display and shown;
Four, cutting operation personnel complete the cutting of residue steel billet according to the new single times of scale L of steel billet.
When each last stove molten steel casting watering time is complete, middle ladle stopper is closed, get mould liquid level dropping signal, show that crystallizer mouth is to the uncut steel billet length of Cutting dolly below residue, and be optimized calculating, after making it remove last defective steel billet length, divide equally again, in the allowed band that the cut lengths obtaining is controlled in technological requirement.
Because afterbody molten steel residue is more or molten steel purity is inadequate, in general technology, the final stage 1-1.2 rice length of every stream molten steel is that L3 is defective section, needs excise and melt down, so the length of L3 can not count tail base length, is optimized.
The L4 calculating is compared with the permission length range that requirement is set according to technology controlling and process in advance, this length range be according to the cut lengths of conticaster Gang road length and different size steel billet in conjunction with long-term actual cutting operation experience gained, with X1, X2, X3, represent each end points of length range and compare with L4 the number N that show that tail base can cut below.
If L4 >=X1, N=Y1;
If X2≤L4 < is X1, N=Y2;
If X3≤L4 < is X2, N=Y3;
The single times of scale scope that the value of X1, X2, X3 need require according to technology controlling and process get occur simultaneously calculate Y1, Y2, Y3 is integer.
When flame cutting trolley is during at initial position, crystallizer mouth to the length of flame cutting trolley cutting gun position is changeless, but in actual production process, Cutting dolly is always in the motion of following strand cutting or returning, therefore to close rear remaining steel billet length be uncertain to stopper, as long as but calculate above-mentioned L1 variable quantity and just can obtain remaining uncut steel billet length L 2.
Continuous casting primary control program controller is usingd a scan period t as chronomere, the pulling rate that in this chronomere, steel billet is pulled is v, according to t and v, can calculate the distance that steel billet is pulled within this cycle, L1 obtains for the distance by steel billet is pulled in a plurality of scan period t is cumulative, and computing formula is: L1=∑ (V1 * t+V2 * t+ ... + Vn * t).
The utility model is simple, solved efficiently in the situation that molten steel amount is not equal to strand scale integral multiple, in advance by the unnecessary molten steel amount mean allocation that is less than a single times of scale in branched qualified strand, and tail base optimized sizing diced system is by being drawn forward the dynamic monitoring of moving pulling rate and Billet Remainder length in steel billet Gang road, the Cutting Length that last several blanks are carried out within the scope of scale regulates, to reach the length of last several tail bases, be accurately controlled in claimed range, precision is higher, effectively solved tail base problem different in size, realize raising lumber recovery truly.
Claims (5)
1. a continuous casting tail billet optimized sizing cutter sweep, comprise the middle ladle (1) and the conticaster that are connected, it is characterized in that: also comprise for calculating tail base length and tail base being optimized to the continuous casting main control device of scale, described conticaster comprises steel road (2) and for the interior steel billet in cutting of steel road (2) the Cutting dolly (21) that is electrically connected with continuous casting main control device, in the middle of described, the molten steel outlet place of ladle (1) is provided with stopper (3), described stopper (3) bottom is provided with crystallizer (4), on described crystallizer (4), be provided with for detection of molten steel liquid level the liquid level detector (41) that is electrically connected with continuous casting main control device, in the middle of described, ladle (1) is connected with described steel road (2) by described crystallizer (4).
2. a kind of continuous casting tail billet optimized sizing cutter sweep according to claim 1, is characterized in that: described main control device comprises the movement locus of the molten steel liquid level data that send over for receiving liquid bit detector (41) that are mutually electrically connected and Cutting dolly (21) and calculates the continuous casting primary control program controller of tail base length, be provided with start button for the continuous casting master control display controlling tail base optimal way and whether put into production and be electrically connected with Cutting dolly and control the cutting operation display of single times of scale of steel billet.
3. a kind of continuous casting tail billet optimized sizing cutter sweep according to claim 2, is characterized in that: described Cutting dolly (21) is electrically connected with described continuous casting primary control program controller and cutting operation display.
4. according to a kind of continuous casting tail billet described in claim 1 or 2, optimize cutter sweep, it is characterized in that: described conticaster also comprises the initial bit limiting component (22) for positional dissection dolly (21) cutting initial position.
5. a kind of continuous casting tail billet optimized sizing cutter sweep according to claim 3, is characterized in that: in the middle of described, ladle (1) is connected with two conticasters.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320289647.1U CN203484632U (en) | 2013-05-24 | 2013-05-24 | Fixed length optimization cutting apparatus for continuous casting tail blank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320289647.1U CN203484632U (en) | 2013-05-24 | 2013-05-24 | Fixed length optimization cutting apparatus for continuous casting tail blank |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264149A (en) * | 2013-05-24 | 2013-08-28 | 永兴特种不锈钢股份有限公司 | Method and device using computer programs to carry out continuous casting tail blank fixed length optimizing cutting |
| CN104308138A (en) * | 2014-11-14 | 2015-01-28 | 北京首钢自动化信息技术有限公司 | Casting end-point control device and method thereof based on multiple fixed lengths and multiple strands |
| CN105798249A (en) * | 2016-03-22 | 2016-07-27 | 山东钢铁股份有限公司 | Ex-situ billet cutting control method and system |
| CN106270432A (en) * | 2015-05-27 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of slab cutting optimization method based on the conversion of molten steel amount and control system thereof |
| CN107649657A (en) * | 2017-08-29 | 2018-02-02 | 武钢集团昆明钢铁股份有限公司 | A kind of small billet tundish stops the method poured |
| CN112264982A (en) * | 2020-09-24 | 2021-01-26 | 彩虹集团有限公司 | Automatic length measuring and scribing device and method for plate blank |
| CN116921446A (en) * | 2023-09-18 | 2023-10-24 | 陕西钢铁集团有限公司 | Method for full length and fast adjusting steel billet between steel making and rolling based on direct rolling |
-
2013
- 2013-05-24 CN CN201320289647.1U patent/CN203484632U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264149A (en) * | 2013-05-24 | 2013-08-28 | 永兴特种不锈钢股份有限公司 | Method and device using computer programs to carry out continuous casting tail blank fixed length optimizing cutting |
| CN104308138A (en) * | 2014-11-14 | 2015-01-28 | 北京首钢自动化信息技术有限公司 | Casting end-point control device and method thereof based on multiple fixed lengths and multiple strands |
| CN104308138B (en) * | 2014-11-14 | 2016-06-29 | 北京首钢自动化信息技术有限公司 | A kind of casting terminal point control devices and methods therefor based on many scales, many casting stream |
| CN106270432A (en) * | 2015-05-27 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of slab cutting optimization method based on the conversion of molten steel amount and control system thereof |
| CN105798249A (en) * | 2016-03-22 | 2016-07-27 | 山东钢铁股份有限公司 | Ex-situ billet cutting control method and system |
| CN107649657A (en) * | 2017-08-29 | 2018-02-02 | 武钢集团昆明钢铁股份有限公司 | A kind of small billet tundish stops the method poured |
| CN112264982A (en) * | 2020-09-24 | 2021-01-26 | 彩虹集团有限公司 | Automatic length measuring and scribing device and method for plate blank |
| CN116921446A (en) * | 2023-09-18 | 2023-10-24 | 陕西钢铁集团有限公司 | Method for full length and fast adjusting steel billet between steel making and rolling based on direct rolling |
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