CN109332614A - A kind of non-equilibrium casting beam blank mould cooling controller of single-point and control method - Google Patents

A kind of non-equilibrium casting beam blank mould cooling controller of single-point and control method Download PDF

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Publication number
CN109332614A
CN109332614A CN201811339165.6A CN201811339165A CN109332614A CN 109332614 A CN109332614 A CN 109332614A CN 201811339165 A CN201811339165 A CN 201811339165A CN 109332614 A CN109332614 A CN 109332614A
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cooling water
cooling
leptoprosopy
crystallizer
wide face
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CN109332614B (en
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李四军
王中学
何飞
彭永香
杜金科
韩蕾蕾
郭达
周俐
张闯
常立忠
王海军
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Laiwu Steel Group Yinshan Section Steel Co Ltd
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Laiwu Steel Group Yinshan Section Steel Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/009—Continuous casting of metals, i.e. casting in indefinite lengths of work of special cross-section, e.g. I-beams, U-profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/055—Cooling the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

The invention discloses a kind of non-equilibrium casting beam blank mould cooling controller of single-point and control methods, belong to continuous casting technology field.It includes offline cooling water quantity calculation system, on line real time control system, water inlet manifold road and outfall sewer road；On line real time control system is electrically connected with offline cooling water quantity calculation system；On line real time control system includes crystallizer cooling water loop module and cooling range calculates and water computing unit, and crystallizer cooling water loop module both ends are connected with water inlet manifold road and outfall sewer road respectively.The present invention is conducive to beam blank mould equalizing temperature, conducive to the solidification and growth of slab, improves the defect of Longitudinal Surface Cracks of the slab at web and at fillet, has structure simple, and design is reasonable, advantage easy to implement.

Description

A kind of non-equilibrium casting beam blank mould cooling controller of single-point and control method
Technical field
The invention belongs to continuous casting technology fields, more specifically to a kind of non-equilibrium casting beam blank mould of single-point Cooling controller and control method.
Background technique
A kind of new technique of American R & D the 1950s is continuous casting technology, which is by molten steel direct pouring Molding, compared to traditional pouring procedure, which has good slab quality, higher metal production and higher resource Utilization rate.Its production process is: first molten steel being poured into ladle, then molten steel flows out in tundish along ladle, and molten steel exists Pass through series reaction in tundish, field trash can float in tundish to be removed, so that molten steel is purer, then molten steel can flow Into crystallizer, crystallizer is cooled down it by cooling water, molten steel in crystallizer can gradually cooled and solidified, subsequently enter arc Guide section will receive the atomized water that secondary cooling zone nozzle is sprayed herein and force cooled and solidified, then aligns by the drawing straightener, The slab of certain size is finally cut by cutter device.
Casting for shaped blank continuous technology can trace back in the 1960s, just having been reported that progress was different early in the 1961 Nian Yuan Soviet Union The continuous casting of parison is tested.In May nineteen sixty-eight, the I-shaped billet continuous casting machine of First entrusts Switzerland CONCAST by Algor? Ma in the world Company is constructed and put into operation under conditions of 100t converter cooperates and produces.1973, Kawasaki, Japan iron company built in the island Qi Shui factory Second special-shaped billet continuous casting machine in the world is played, which is a bloom and I-shaped base compatible type conticaster, production casting Base quality mutually greatly improves than before.The above successful case gives other countries in the world great confidence, and countries in the world are all Start to further investigate casting for shaped blank continuous technology.Before 21 century, the quantity of special-shaped billet continuous casting machine has been in the world It is considerable.Casting for shaped blank continuous technology starting in China's develops very rapid, first, China in 1998 compared with other countries' evening Casting for shaped blank continuous machine production line entrusts western mark group to establish in its factory by horse steel, and Laigang in November in the same year is introduced by Voestalpine public affairs Take charge of the special-shaped billet continuous casting machine of the country second of master-plan.2006, specification was the type steel production line of H250mm-H900mm in river The northern western steel of saliva builds up and puts into production.2007, the casting for shaped blank continuous production line designed by domestic corporation's independent research existed Shanxi Changzhi company establishes.It 2011, is established by the special-shaped billet continuous casting machine of middle smelting sadie design in Tangshan Iron and Steel Co.
H profile steel have many advantages, such as section metallic distribution rationally, wall it is thin, convenient for assembling combination, light-weight and interface modulus is big. H-type Hot Metal in Beam Blank can be divided into three classes: extreme nearly end form base, common Hot Metal in Beam Blank and near net shape beam blank, web thickness are respectively About 50 millimeters, less than 50 millimeters and be greater than 50 millimeters.The pressure of milling train is than decide the big of H-type Hot Metal in Beam Blank web and thickness of flange It is small.The construction of special-shaped billet continuous casting machine other than the layout of the shape of crystallizer and secondary cooling zone support roller is different, substantially with square billet Conticaster is identical.Compared to traditional slab (square billet, round billet and slab) continuous casting, casting for shaped blank continuous has itself unique spy Point:
(1) in square billet and plate slab crystallizer there are 4 faces and 4 turnings, have in beam blank continuous casting mould 12 faces and 12 turnings, cavity shape is sufficiently complex, and the cooling situation at 12 faces and 12 turnings is different, easily causes crystallizer Middle casting blank shell unevenly solidifies.
(2) frequently with open type water-gap pouring, since the web of Hot Metal in Beam Blank and the edge of a wing are relatively thin, frequently with shortening tundish Molten steel casts the distance for flowing to mold liquid level, washes away to reduce to initial solidification green shell.
(3) Hot Metal in Beam Blank surface area is relatively large, rapid heat dissipation, and slab temperature is easy decline, can coagulate in the secondary cooling zone stage Gu completely, therefore having shorter metallurgical length；Area is aligned in throwing, slab local surface temperature is difficult that it is allowed to be not at the low of various steel Warm brittle zone causes the already present face crack of slab in straightening process to be easy to extend.
(4) Hot Metal in Beam Blank section configuration is complicated, be more easier it is expensive the mass defects such as crack because on Hot Metal in Beam Blank section Each point heat dispersal situations differ greatly, and the temperature difference of each point on section can be made big compared to traditional continuous casting.
In continuous casting process, solidification, the heat transfer of Mold have a major impact slab quality.In production process, If crystallizer cooling system is unreasonable, cause the initial solidification shell thickness of slab uneven, can be generated in green shell weakness Stress is concentrated, and when the tensile stress for acting on solidification front is more than critical value, casting billet surface just forms various crack defects；Together When, non-uniform initial solidification shell thickness deposits the ability that slab circumferential direction different parts resist solidification deformation in crystallizer It, will be in casting blank solidification weakness when solidification shrinkage effect in crystallizer corner is relatively strong or generates scrolling because of solidification shrinkage in difference Place forms surface longitudinal recess.Therefore, above-mentioned technical problem is urgently to be resolved.
Through retrieving, Chinese Patent Application No. are as follows: 201210335743.5, the applying date are as follows: on September 11st, 2012, invention wound Make title are as follows: " a kind of system and method that dynamic control continuous casting crystallizer for plate billet is cooling ", system includes that initial water flow is set Cover half block, each face mean heat flux computing module, plane of symmetry mean heat flux comparison module, water flow reset module With safe water flow determination module.The invention can provide more uniform crystallizer cooling condition, be conducive to Mold Balance and symmetry heat transfer, while being set by the fining of crystallizer cooling water flow dynamic, improve crystallizer automation and intelligence Energyization is horizontal；But due to single-point it is non-equilibrium casting beam blank mould in flow field be it is very asymmetric, exacerbate crystallizer The inhomogeneities of interior heat transfer and flowing, is degrading continuous casting process condition, proposes to slab quality and continuous casting process direct motion tighter High challenge, and cooling, heat transfer, solidification and frictional force situation of the molten steel in crystallizer have to the quality of continuous casting billet it is very big It influences, which not can solve the excessive difference due to section each point temperature in casting bring crystallizer, to crystallization Not the phenomenon that cooling huge challenge proposed of device, is not able to satisfy each face excessive temperature differentials of crystallizer, inhomogeneous cooling.
For another example, Chinese Patent Application No. are as follows: 201410399554.3, the applying date are as follows: on August 14th, 2014, innovation and creation Title are as follows: " a kind of crystallizer cooling water control device and method " comprising continuous cast mold, the arrival end of the continuous cast mold It is connected with into water main line, the inner arc of continuous cast mold, outer arc, left side, right side are separately connected inner arc return water branch, outer arc return water branch Road, left side return water branch, right side return water branch；Main line intake equipped with the first temperature sensor for detecting inflow temperature； Inner arc return water branch, outer arc return water branch, left side return water branch, right side return water branch road are respectively provided with each branch of detection and return The second temperature sensor of coolant-temperature gage counts the electromagnetic flowmeter of each branch circling water flow rate, pneumatic diaphragm control valve；According to steel The factors such as kind, pulling rate, inflow temperature, water inlet and backwater temperature difference, superheat of liquid steel, casting blank cross-section size calculate inside and outside crystallizer Arc, left and right sides cooling water inflow realize that the PID of water is adjusted by electromagnetic flowmeter and pneumatic control valve.When casting, casting is improved The heat transfer of base reduces the incidence of surface defect；But it not can solve the non-equilibrium casting of single-point, beam blank mould temperature point The problem of cloth is extremely uneven, free surface crystallizer inhomogeneous cooling brought by temperature distribution is non-uniform.
In conclusion two patent documents all provide solution for the cooling device of crystallizer and cooling means, But two kinds of crystallizer cooling devices and cooling means not can solve the non-equilibrium casting Hot Metal in Beam Blank of single-point, mould temperature distribution It is extremely uneven, each face excessive temperature differentials, free surface crystallizer inhomogeneous cooling brought by temperature distribution is non-uniform, casting blank defect The problem of increasing.
Summary of the invention
1. to solve the problems, such as
The non-equilibrium casting Hot Metal in Beam Blank crystallization of single-point is not can solve for existing crystallizer cooling controller and control method The problem of device inhomogeneous cooling, the object of the present invention is to provide a kind of cooling control dresses of the non-equilibrium casting beam blank mould of single-point The problem of setting, can be effectively solved single-point non-equilibrium casting beam blank mould inhomogeneous cooling is conducive to Hot Metal in Beam Blank crystallization Device equalizing temperature, the asymmetric balanced heat transfer of Mold, conducive to the solidification and growth of slab, so that crystallizer is not easy out The phenomenon that existing bleedout, improves the defect of Longitudinal Surface Cracks of the slab at web and at fillet.
It is a further object of the present invention to provide a kind of non-equilibrium casting beam blank mould cooling control methods of single-point, utilize The non-equilibrium casting beam blank mould cooling controller of single-point realizes the self feed back of on line real time control system, and offline Cooling water quantity calculation systematic direction on line real time control system, on line real time control system correct offline cooling water quantity calculation system Function.
2. technical solution
To solve the above-mentioned problems, the technical solution adopted in the present invention is as follows:
A kind of non-equilibrium casting beam blank mould cooling controller of single-point of the invention, including offline cooling water quantity Calculation system, on line real time control system, water inlet manifold road and outfall sewer road；
The on line real time control system is electrically connected with offline cooling water quantity calculation system；
The on line real time control system includes crystallizer cooling water loop module and cooling range calculates and water Computing unit is measured, the crystallizer cooling water loop module is calculated with cooling range and water computing unit is electrically connected, and ties Brilliant device cooling water loop module includes wide face inner arc refrigerating module, wide face outer arc refrigerating module, refrigerating module and narrow on the left of leptoprosopy Right side of face refrigerating module, the water inlet manifold road and outfall sewer road are cold with wide face inner arc refrigerating module, wide face outer arc respectively But refrigerating module both ends connection on the right side of module, leptoprosopy left side refrigerating module and leptoprosopy；
The cooling range calculates and water computing unit includes wide face inner arc cooling range calculating and watermeter Calculate unit, wide face outer arc cooling range calculates and water computing unit, the cooling range calculating of leptoprosopy left side and water calculate Cooling range calculates and water computing unit on the right side of unit and leptoprosopy；Wide face inner arc cooling range calculates and water calculates Unit be electrically connected with wide face inner arc refrigerating module, wide face outer arc cooling range calculate and water computing unit and width face outer arc it is cold But module is electrically connected, and cooling range calculates on the left of leptoprosopy and water computing unit is electrically connected with refrigerating module on the left of leptoprosopy, narrow Right side of face cooling range calculates and water computing unit is electrically connected with refrigerating module on the right side of leptoprosopy.
As preferred embodiments of the present invention, the wide face inner arc refrigerating module includes wide face inner arc crystallizer cooling water branch Pipe, wide face inner arc cooling water flow controlling valve, wide face inner arc cooling water inlet temperature measurer, the wide face inner arc cooling water seam of crystallizer with And wide face inner arc cooling water outlet temperature measurer；Described wide face inner arc crystallizer cooling water branch pipe one end is connected with water inlet manifold Road, the other end are connected with outfall sewer road, are equipped on wide face inner arc crystallizer cooling water branch pipe according to the direction of flow of cooling water Wide face inner arc cooling water flow controlling valve, wide face inner arc cooling water inlet temperature measurer, the wide face inner arc cooling water seam of crystallizer, wide face Inner arc cooling water outlet temperature measurer, wide face inner arc cooling water flow controlling valve, wide face inner arc cooling water inlet temperature measurer and wide face Inner arc cooling water outlet temperature measurer is calculated with wide face inner arc cooling range and water computing unit is electrically connected；
The wide face outer arc refrigerating module includes wide face outer arc crystallizer cooling water branch pipe, wide face outer arc cooling water flow Controlling valve, wide face outer arc cooling water inlet temperature measurer, the wide face outer arc cooling water seam of crystallizer and wide face outer arc cooling water outlet Temperature measurer；Described wide face outer arc crystallizer cooling water branch pipe one end is connected with water inlet manifold road, and it is total that the other end is connected with water outlet Pipeline is equipped with wide face outer arc cooling water flow regulation according to the direction of flow of cooling water on wide face outer arc crystallizer cooling water branch pipe Valve, wide face outer arc cooling water inlet temperature measurer, the wide face outer arc cooling water seam of crystallizer, wide face outer arc cooling water outlet temperature measurer, Wide face outer arc cooling water flow controlling valve, wide face outer arc cooling water inlet temperature measurer and wide face outer arc cooling water outlet temperature measurer with Wide face outer arc cooling range calculates and the electrical connection of water computing unit；
Refrigerating module includes crystallizer cooling water branch pipe on the left of leptoprosopy, cooling water flow on the left of leptoprosopy on the left of the leptoprosopy Cooling water outlet on the left of cooling water inlet temperature measurer, crystallizer leptoprosopy left side cooling water seam and leptoprosopy on the left of controlling valve, leptoprosopy Temperature measurer；Crystallizer cooling water branch pipe one end is connected with water inlet manifold road on the left of the leptoprosopy, and it is total that the other end is connected with water outlet Pipeline is equipped with cooling water flow on the left of leptoprosopy according to the direction of flow of cooling water on crystallizer cooling water branch pipe on the left of leptoprosopy and regulates and controls Cooling water inlet temperature measurer, crystallizer leptoprosopy left side cooling water seam, leptoprosopy left side cooling water outlet temperature measurer on the left of valve, leptoprosopy, Cooling water flow controlling valve on the left of leptoprosopy, on the left of leptoprosopy on the left of cooling water inlet temperature measurer and leptoprosopy cooling water outlet temperature measurer with Cooling range calculates on the left of leptoprosopy and water computing unit is electrically connected；
Refrigerating module includes crystallizer cooling water branch pipe on the right side of leptoprosopy, cooling water flow on the right side of leptoprosopy on the right side of the leptoprosopy Cooling water outlet on the right side of cooling water inlet temperature measurer, crystallizer leptoprosopy right side cooling water seam and leptoprosopy on the right side of controlling valve, leptoprosopy Temperature measurer；Crystallizer cooling water branch pipe one end is connected with water inlet manifold road on the right side of the leptoprosopy, and it is total that the other end is connected with water outlet Pipeline is equipped with cooling water flow on the right side of leptoprosopy according to the direction of flow of cooling water on crystallizer cooling water branch pipe on the right side of leptoprosopy and regulates and controls Cooling water inlet temperature measurer, crystallizer leptoprosopy right side cooling water seam, leptoprosopy right side cooling water outlet temperature measurer on the right side of valve, leptoprosopy, Cooling water flow controlling valve on the right side of leptoprosopy, on the right side of leptoprosopy on the right side of cooling water inlet temperature measurer and leptoprosopy cooling water outlet temperature measurer with Cooling range calculates on the right side of leptoprosopy and water computing unit is electrically connected.
As preferred embodiments of the present invention, the wide face inner arc cooling water inlet temperature measurer and wide face inner arc cooling water Outlet temperature measurer is separately mounted to copper sheet two sides at the wide face inner arc of crystallizer；
The wide face outer arc cooling water inlet temperature measurer and wide face outer arc cooling water outlet temperature measurer is separately mounted to Copper sheet two sides at the wide face outer arc of crystallizer；
Cooling water inlet temperature measurer and leptoprosopy left side cooling water outlet temperature measurer are separately mounted on the left of the leptoprosopy Copper sheet two sides on the left of crystallizer leptoprosopy；
Cooling water inlet temperature measurer and leptoprosopy right side cooling water outlet temperature measurer are separately mounted on the right side of the leptoprosopy Copper sheet two sides on the right side of crystallizer leptoprosopy.
As preferred embodiments of the present invention, the cooling range calculates and water computing unit and plane of symmetry cooling water The temperature difference regulates and controls unit electrical connection, and sends plane of symmetry temperature differential information to plane of symmetry cooling range regulation unit, and the plane of symmetry is cold But water temperature difference regulation unit carries out the regulation of plane of symmetry cooling water inflow.
As preferred embodiments of the present invention, the regulation standard of the described plane of symmetry cooling range regulation unit is, symmetrically Face cooling range difference is less than 0.5 DEG C.
A kind of non-equilibrium casting beam blank mould cooling control method of single-point of the invention, using above-mentioned apparatus, including Following steps:
1) pass through the cooling water inflow range of offline cooling water quantity calculation system-computed beam blank mould refrigerating module；
2) cooling range of on line real time control system calculates and water computing unit is by being mounted on four, crystallizer Wide face inner arc, wide face outer arc, on the left of leptoprosopy and narrow is calculated in the temperature measurer of face cooling water inlet and cooling water outlet position The cooling range of right side of face, and calculate actually required cooling water inflow；
3) cooling range calculates and water computing unit will calculate gained four face cooling ranges of crystallizer and required Cooling water inflow result carries out dynamic analysis, and dynamic analysis result is fed back to cooling water flow controlling valve and regulates and controls cooling water flow Amount；
Dynamic analysis include: to pass through when four face outlet cooling waters of crystallizer are lower than 4.5 DEG C with import cooling range The cooling water flow controlling valve for controlling four faces reduces cooling water inflow, when four face outlet cooling waters of crystallizer and import cooling water When the temperature difference is higher than 6 DEG C, cooling water inflow is increased by the cooling water flow controlling valve in four faces of control, when crystallizer four faces outlet When cooling water and import cooling range are between 4.5 DEG C -6 DEG C, belong to the normal temperature difference of cooling water, without adjusting.
As preferred embodiments of the present invention, the calculating step of the offline cooling water quantity calculation system are as follows:
A. input crystallizer technological parameter calculates hot-fluid Q；
B. input pulling rate parameter calculates water and stitches area；
C. input cooling range calculates cooling water inflow.
As preferred embodiments of the present invention, the cooling range is calculated and water computing unit calculates cooling water flow Method are as follows:
1) the heat Q that surface temperature is taken away within the scope of 1200-1250 DEG C by cooling water when slab goes out crystallizer is calculated；
2) calculate what surface temperature when slab goes out crystallizer was taken away in every 10s by cooling water within the scope of 1200-1250 DEG C Average heat
3) crystallizer cooling water flow W is calculated.
3. beneficial effect
Compared with the prior art, the present invention have it is following significant the utility model has the advantages that
(1) a kind of non-equilibrium casting beam blank mould cooling controller of single-point of the invention and control method, device Including offline cooling water quantity calculation system, on line real time control system, water inlet manifold road and outfall sewer road；Offline cooling water Computing system is measured to be used to calculate cooling water initial content and on line real time control system to offline cooling water inflow in off-line state Computing system Real-time Feedback adjusts relevant casting parameters, ensure that the cooling water inflow relative precision of off-line calculation；? The non-equilibrium casting beam blank mould of line real-time control system real-time control single-point is cooling, is conducive to continuous casting according to practical crystallization Device temperature and crystallizer cooling condition quickly regulate and control；
(2) a kind of non-equilibrium casting beam blank mould cooling controller of single-point of the invention and control method, water inlet Total pipeline is connect with the refrigerating module both ends in four faces of beam blank mould respectively with outfall sewer road, and water inlet manifold road is crystallization Device provides cooling water, and water at crystallizer cooling water outlet is collected, is uniformly processed by outfall sewer road, is easy to use；Knot Brilliant device cooling water loop module sets up relatively independent refrigerating module, four refrigerating modules to four faces of beam blank mould respectively According to the different temperature regime in four faces of beam blank mould and required cooling water inflow, independently supplying cooling water is to crystallization Four faces of device are cooled down, when being directed to the non-equilibrium casting of single-point, required for crystallizer caused by mould temperature is uneven The non-uniform problem of cooling water inflow, solution is provided；
(3) a kind of non-equilibrium casting beam blank mould cooling controller of single-point of the invention and control method, it is special-shaped The crystallizer refrigerating module in four faces of billet crystallizer all includes crystallizer cooling water branch pipe, cooling water flow control valve, cooling water Import temperature measurer, crystallizer cooling water seam and cooling water outlet temperature measurer, crystallizer cooling water branch pipe both ends respectively with water inlet Total pipeline is connect with outfall sewer road, and for accepting the cooling water in four faces, cooling water flow control valve is to cooling water branch pipe Cooling water flow is regulated and controled, and is cooled down respectively for four different cooling requirements in face of beam blank mould, cooling water into Mouth and outlet temperature measurer measure four face cooling water inlets of beam blank mould with exit water temperature, quantify Hot Metal in Beam Blank The cooling procedure of crystallizer, and the regulation for beam blank mould cooling water inflow provides foundation；
(4) a kind of non-equilibrium casting beam blank mould cooling controller of single-point of the invention and control method, online Real-time control system includes crystallizer cooling water loop module and cooling range calculates and water computing unit, cooling range The calculating with water computing unit for beam blank mould cooling range and cooling water inflow is calculated, and according to calculating gained Carry out dynamic analysis analyzed as a result, and result fed back into crystallizer refrigerating module regulated and controled in real time, by reasonable Crystallizer cooling water is distributed, is conducive to the asymmetric balanced heat transfer of molten steel in beam blank mould, is conducive to good solidified shell Growth, avoid the production accidents such as bleedout and reduce Longitudinal Surface Cracks of the slab at web and at fillet；In Hot Metal in Beam Blank During crystallizer is cooling, the cooling water in outfall sewer road is collected and is handled by crystallizer cooling water loop module, When meeting requirement of the water inlet manifold road for cooling water, the cooling water handled is put into water inlet manifold road, realizes cooling water Recycle, reduce the wasting of resources, reduce production cost；
(5) a kind of non-equilibrium casting beam blank mould cooling controller of single-point of the invention and control method, in order to Ensure that the cooling situation of the Hot Metal in Beam Blank plane of symmetry is consistent substantially, plane of symmetry cooling range regulation unit is individually set up, to different The cooling range and cooling water flow information of two groups of planes of symmetry of parison crystallizer are collected and calculate, it is ensured that the plane of symmetry is cooling Water temperature difference difference conducive to the homogeneous condensation of slab, reduces the defect of slab, improves the qualification rate of product less than 0.5 DEG C；
(6) a kind of non-equilibrium casting beam blank mould cooling controller of single-point of the invention and control method, control Method is Hot Metal in Beam Blank knot by the cooling water inflow range of offline cooling water quantity calculation system-computed beam blank mould refrigerating module Brilliant device cooling is provided fundamental basis and initial cooling water, obtains four faces of beam blank mould by line real time control system The temperature difference of cooling water, and practically necessary cooling water inflow is calculated, it is analyzed by dynamic analysis as a result, and result is anti- Cooling water flow controlling valve of feeding carries out the regulation of cooling water, while result is fed back to offline cooling water quantity calculation system to ginseng Number is modified, and the method fed back twice optimizes the cooling effect of beam blank mould, solves by the non-equilibrium casting of single-point Beam blank mould surface temperature distribution caused by Hot Metal in Beam Blank is extremely uneven, and crystallizer free surface Temperature Distribution is also unevenly led The solidified shell of cause grows the problems such as uneven and Longitudinal Surface Cracks；
(7) the configuration of the present invention is simple, design are rationally, easy to implement.
Detailed description of the invention
Technical solution of the present invention is described in further detail below with reference to drawings and examples, but should Know, these attached drawings are designed for task of explanation, therefore not as the restriction of the scope of the invention.In addition, except non-specifically It points out, these attached drawings are meant only to conceptually illustrate structure construction described herein, without to be drawn to scale.
Fig. 1 is a kind of non-equilibrium casting beam blank mould cooling controller schematic diagram of single-point of the present invention；
Fig. 2 is beam blank mould schematic diagram involved in the embodiment of the present invention；
Fig. 3 is the feedback schematic diagram of the present invention offline cooling water quantity calculation system and on line real time control system；
Fig. 4 is crystallizer flow field figure involved in the embodiment of the present invention；
Fig. 5 is that Mold involved in the embodiment of the present invention spreads flow field figure.
In attached drawing:
1, wide face inner arc refrigerating module；1-1, wide face inner arc crystallizer cooling water branch pipe；1-2, the cooling water flow of wide face inner arc Measure controlling valve；1-3, wide face inner arc cooling water inlet temperature measurer；The wide face inner arc cooling water seam of 1-4, crystallizer；1-5, wide face inner arc Cooling water outlet temperature measurer；1-6, wide face inner arc cooling range calculates and water computing unit；
2, wide face outer arc refrigerating module；2-1, wide face outer arc crystallizer cooling water branch pipe；2-2, the cooling water flow of wide face outer arc Measure controlling valve；2-3, wide face outer arc cooling water inlet temperature measurer；The wide face outer arc cooling water seam of 2-4, crystallizer；2-5, wide face outer arc Cooling water outlet temperature measurer；2-6, wide face outer arc cooling range calculates and water computing unit；
3, refrigerating module on the left of leptoprosopy；Crystallizer cooling water branch pipe on the left of 3-1, leptoprosopy；Cooling water flow on the left of 3-2, leptoprosopy Measure controlling valve；Cooling water inlet temperature measurer on the left of 3-3, leptoprosopy；Cooling water seam on the left of 3-4, crystallizer leptoprosopy；On the left of 3-5, leptoprosopy Cooling water outlet temperature measurer；Cooling range calculating and water computing unit on the left of 3-6, leptoprosopy；
4, refrigerating module on the right side of leptoprosopy；Crystallizer cooling water branch pipe on the right side of 4-1, leptoprosopy；Cooling water flow on the right side of 4-2, leptoprosopy Measure controlling valve；Cooling water inlet temperature measurer on the right side of 4-3, leptoprosopy；Cooling water seam on the right side of 4-4, crystallizer leptoprosopy；On the right side of 4-5, leptoprosopy Cooling water outlet temperature measurer；Cooling range calculating and water computing unit on the right side of 4-6, leptoprosopy；
5-1, water inlet manifold road；5-2, outfall sewer road；
6-1, casting gate；6-2, free surface；6-3, crystallizer outlet.
Specific embodiment
Hereafter to the detailed description of exemplary embodiment of the present invention with reference to attached drawing, which forms one of description Point, it has been shown as example enforceable exemplary embodiment of the invention in the figure.Although these exemplary embodiment quilts Sufficiently describe in detail so that those skilled in the art can implement the present invention, it is to be understood that can realize other embodiments and Can without departing from the spirit and scope of the present invention to the present invention various changes can be made.Hereafter to the embodiment of the present invention More detailed description is not limited to required the scope of the present invention, and just to be illustrated and do not limit pair The description of the features of the present invention and feature to propose to execute best mode of the invention, and is sufficient to make those skilled in the art It can implement the present invention.Therefore, the scope of the invention is only defined by the appended claims.
Hereafter detailed description of the present invention and example embodiment are more fully understood in combination with attached drawing, wherein of the invention Element and feature are identified by appended drawing reference.
Embodiment 1
As shown in figures 1 and 3, the non-equilibrium casting beam blank mould cooling controller of a kind of single-point of the invention, packet Include offline cooling water quantity calculation system, on line real time control system, water inlet manifold road 5-1 and outfall sewer road 5-2.
Offline cooling water quantity calculation system is used to calculate cooling water initial content in off-line state, instructs real-time cooling water Amount and on line real time control system adjust relevant casting parameters to offline cooling water quantity calculation system Real-time Feedback, It ensure that the cooling water inflow relative precision of off-line calculation.
On line real time control system includes crystallizer cooling water loop module and cooling range calculates and water calculates list Member, on line real time control system are electrically connected with offline cooling water quantity calculation system；The non-equilibrium casting Hot Metal in Beam Blank of real-time control single-point Crystallizer is cooling, is quickly regulated and controled conducive to continuous casting according to practical mould temperature and crystallizer cooling condition.
Water inlet manifold road 5-1 and outfall sewer road 5-2 connects with the refrigerating module both ends in four faces of beam blank mould respectively It connects, water inlet manifold road 5-1 provides cooling water for crystallizer, and outfall sewer road 5-2 carries out water at crystallizer cooling water outlet Collect, be uniformly processed, is easy to use.
Crystallizer cooling water loop module is calculated with cooling range and water computing unit is electrically connected, crystallizer cooling water Loop module sets up relatively independent refrigerating module to four faces of beam blank mould respectively, and four refrigerating modules are according to Hot Metal in Beam Blank The different temperature regime in four faces of crystallizer and required cooling water inflow, four faces of the independently supplying cooling water to crystallizer It is cooled down, when being directed to the non-equilibrium casting of single-point, cooling water inflow required for crystallizer caused by mould temperature is uneven Non-uniform problem, provides solution.It is cold that crystallizer refrigerating module specifically includes wide face inner arc refrigerating module 1, wide face outer arc But refrigerating module 4, water inlet manifold road 5-1 and outfall sewer road 5-2 difference on the right side of module 2, leptoprosopy left side refrigerating module 3 and leptoprosopy With refrigerating module 4 on the right side of refrigerating module 3 on the left of wide face inner arc refrigerating module 1, wide face outer arc refrigerating module 2, leptoprosopy and leptoprosopy Both ends connection.Crystallizer cooling water branch pipe both ends are connect with water inlet manifold road 5-1 with outfall sewer road 5-2 respectively, for accepting The cooling water in four faces of beam blank mould, cooling water flow control valve regulate and control the cooling water flow of cooling water branch pipe, It is cooled down respectively for four different cooling requirements in face of beam blank mould, cooling water inlet and outlet temperature measurer are to different Four face cooling water inlets of parison crystallizer are measured with exit water temperature, quantify the cooling procedure of beam blank mould, and Regulation for beam blank mould cooling water inflow provides foundation.
Cooling range calculates and water computing unit includes wide face inner arc cooling range calculating and water computing unit 1-6, wide face outer arc cooling range calculates and water computing unit 2-6, the cooling range calculating of leptoprosopy left side and water calculate Unit 3-6 and leptoprosopy right side cooling range calculate and water computing unit 4-6；Wide face inner arc cooling range calculates and water Amount computing unit 1-6 is electrically connected with wide face inner arc refrigerating module 1, and wide face outer arc cooling range calculates and water computing unit 2- 6 are electrically connected with wide face outer arc refrigerating module 2, cooling range calculating and water computing unit 3-6 and leptoprosopy left side on the left of leptoprosopy Refrigerating module 3 is electrically connected, cooling range calculating and water computing unit 4-6 and 4 electricity of leptoprosopy right side refrigerating module on the right side of leptoprosopy Connection.
Wide face inner arc refrigerating module 1 includes width face inner arc crystallizer cooling water branch pipe 1-1, wide face inner arc cooling water flow tune It controls valve 1-2, width face inner arc cooling water inlet temperature measurer 1-3, the wide face inner arc cooling water seam 1-4 of crystallizer and wide face inner arc is cooling Water out temperature measurer 1-5；The one end wide face inner arc crystallizer cooling water branch pipe 1-1 is connected with water inlet manifold road 5-1, other end connection There is an outfall sewer road 5-2, is equipped with wide face inner arc according to the direction of flow of cooling water on wide face inner arc crystallizer cooling water branch pipe 1-1 Cooling water flow controlling valve 1-2, width face inner arc cooling water inlet temperature measurer 1-3, the wide face inner arc cooling water seam 1-4 of crystallizer, width Face inner arc cooling water outlet temperature measurer 1-5.Wide face inner arc cooling water flow controlling valve 1-2, wide face inner arc cooling water inlet thermometric Instrument 1-3 and width face inner arc cooling water outlet temperature measurer 1-5 and wide face inner arc cooling range calculate and water computing unit 1-6 electricity Connection；Wide face inner arc cooling water inlet temperature measurer 1-3 and width face inner arc cooling water outlet temperature measurer 1-5 are separately mounted to crystallize Copper sheet two sides at the wide face inner arc of device.
Wide face outer arc refrigerating module 2 includes width face outer arc crystallizer cooling water branch pipe 2-1, wide face outer arc cooling water flow tune It controls valve 2-2, width face outer arc cooling water inlet temperature measurer 2-3, the wide face outer arc cooling water seam 2-4 of crystallizer and wide face outer arc is cooling Water out temperature measurer 2-5；The one end wide face outer arc crystallizer cooling water branch pipe 2-1 is connected with water inlet manifold road 5-1, other end connection There is an outfall sewer road 5-2, is equipped with wide face outer arc according to the direction of flow of cooling water on wide face outer arc crystallizer cooling water branch pipe 2-1 Cooling water flow controlling valve 2-2, width face outer arc cooling water inlet temperature measurer 2-3, the wide face outer arc cooling water seam 2-4 of crystallizer, width Face outer arc cooling water outlet temperature measurer 2-5.Wide face outer arc cooling water flow controlling valve 2-2, wide face outer arc cooling water inlet thermometric Instrument 2-3 and width face outer arc cooling water outlet temperature measurer 2-5 and wide face outer arc cooling range calculate and water computing unit 2-6 electricity Connection；Wide face outer arc cooling water inlet temperature measurer 2-3 and width face outer arc cooling water outlet temperature measurer 2-5 are separately mounted to crystallize Copper sheet two sides at the wide face outer arc of device.
Refrigerating module 3 includes crystallizer cooling water branch pipe 3-1 on the left of leptoprosopy, cooling water flow tune on the left of leptoprosopy on the left of leptoprosopy It controls cooling on the left of valve 3-2, leptoprosopy left side cooling water inlet temperature measurer 3-3, crystallizer leptoprosopy left side cooling water seam 3-4 and leptoprosopy Water out temperature measurer 3-5；The one end crystallizer cooling water branch pipe 3-1 is connected with water inlet manifold road 5-1, other end connection on the left of leptoprosopy There is outfall sewer road 5-2, is equipped on the left of leptoprosopy on crystallizer cooling water branch pipe 3-1 according to the direction of flow of cooling water on the left of leptoprosopy It is cooling water flow controlling valve 3-2, cooling water inlet temperature measurer 3-3 on the left of leptoprosopy, cooling water seam 3-4 on the left of crystallizer leptoprosopy, narrow Left side of face cooling water outlet temperature measurer 3-5.Cooling water flow controlling valve 3-2, leptoprosopy left side cooling water inlet thermometric on the left of leptoprosopy Instrument 3-3 and leptoprosopy left side cooling water outlet temperature measurer 3-5 and leptoprosopy left side cooling range calculate and water computing unit 3-6 electricity Connection；Cooling water inlet temperature measurer 3-3 and leptoprosopy left side cooling water outlet temperature measurer 3-5 are separately mounted to crystallize on the left of leptoprosopy Copper sheet two sides on the left of device leptoprosopy.
Refrigerating module 4 includes crystallizer cooling water branch pipe 4-1 on the right side of leptoprosopy, cooling water flow tune on the right side of leptoprosopy on the right side of leptoprosopy It controls cooling on the right side of valve 4-2, leptoprosopy right side cooling water inlet temperature measurer 4-3, crystallizer leptoprosopy right side cooling water seam 4-4 and leptoprosopy Water out temperature measurer 4-5；The one end crystallizer cooling water branch pipe 4-1 is connected with water inlet manifold road 5-1, other end connection on the right side of leptoprosopy There is outfall sewer road 5-2, is equipped on the right side of leptoprosopy on crystallizer cooling water branch pipe 4-1 according to the direction of flow of cooling water on the right side of leptoprosopy It is cooling water flow controlling valve 4-2, cooling water inlet temperature measurer 4-3 on the right side of leptoprosopy, cooling water seam 4-4 on the right side of crystallizer leptoprosopy, narrow Right side of face cooling water outlet temperature measurer 4-5.Cooling water flow controlling valve 4-2, leptoprosopy right side cooling water inlet thermometric on the right side of leptoprosopy Instrument 4-3 and leptoprosopy right side cooling water outlet temperature measurer 4-5 and leptoprosopy right side cooling range calculate and water computing unit 4-6 electricity Connection；Cooling water inlet temperature measurer 4-3 and leptoprosopy right side cooling water outlet temperature measurer 4-5 are separately mounted to crystallize on the right side of leptoprosopy Copper sheet two sides on the right side of device leptoprosopy.
Cooling range calculates and water computing unit is for beam blank mould cooling range and cooling water inflow It calculates, and analyzed according to gained progress dynamic analysis are calculated as a result, and result is fed back to the progress of crystallizer refrigerating module Regulation in real time is conducive to the non-of molten steel in beam blank mould by the cooling water flow in four faces of reasonable distribution crystallizer Symmetrical equilibrium heat transfer, is conducive to the growth of good solidified shell, avoids the production accidents such as bleedout and reduces slab in abdomen Longitudinal Surface Cracks at plate and at fillet.Meanwhile during beam blank mould is cooling, crystallizer cooling water loop module will Cooling water in outfall sewer road 5-2 is collected and is handled, when meeting requirement of the water inlet manifold road 5-1 for cooling water, The cooling water handled is put into water inlet manifold road 5-1, realizes recycling for cooling water, reduces the wasting of resources, reduces production Cost.
Cooling range calculates and water computing unit is electrically connected with plane of symmetry cooling range regulation unit, and will be symmetrical Face temperature differential information sends plane of symmetry cooling range regulation unit to, and it is cold that plane of symmetry cooling range regulates and controls the unit progress plane of symmetry But water quantity regulation.The regulation standard that plane of symmetry cooling range regulates and controls unit is that plane of symmetry cooling range difference is less than 0.5 ℃.In order to ensure the cooling situation of the Hot Metal in Beam Blank plane of symmetry is consistent substantially, it is single individually to set up the regulation of plane of symmetry cooling range Member is collected and calculates to the cooling range and cooling water flow information of two groups of planes of symmetry of beam blank mould, it is ensured that is right Title face cooling range difference, conducive to the homogeneous condensation of slab, reduces the defect of slab, product can be improved less than 0.5 DEG C Qualification rate.
The non-equilibrium casting beam blank mould cooling control method of a kind of single-point of the invention, using above-mentioned device, packet Include following steps:
1) pass through the cooling water inflow range of offline cooling water quantity calculation system-computed beam blank mould refrigerating module.
2) cooling range of on line real time control system calculates and water computing unit is by being mounted on four, crystallizer Wide face inner arc, wide face outer arc, on the left of leptoprosopy and narrow is calculated in the temperature measurer of face cooling water inlet and cooling water outlet position The cooling range of right side of face, and calculate actually required cooling water inflow.
3) cooling range calculates and water computing unit will calculate gained four face cooling ranges of crystallizer and required Cooling water inflow result carries out dynamic analysis, and dynamic analysis result is fed back to cooling water flow controlling valve and regulates and controls cooling water flow Amount；Dynamic analysis result offline cooling water quantity calculation system is fed back to simultaneously to be modified parameter.
Dynamic analysis include: to pass through when four face outlet cooling waters of crystallizer are lower than 4.5 DEG C with import cooling range The cooling water flow controlling valve for controlling four faces reduces cooling water inflow, when four face outlet cooling waters of crystallizer and import cooling water When the temperature difference is higher than 6 DEG C, cooling water inflow is increased by the cooling water flow controlling valve in four faces of control, when crystallizer four faces outlet When cooling water and import cooling range are between 4.5 DEG C -6 DEG C, belong to the normal temperature difference of cooling water, without adjusting.
The cooling water inflow that the control method passes through offline cooling water quantity calculation system-computed beam blank mould refrigerating module Range is provided fundamental basis and initial cooling water for beam blank mould cooling, is obtained by line real time control system different The temperature difference of four face cooling waters of parison crystallizer, and practically necessary cooling water inflow is calculated, divided by dynamic analysis Analysis as a result, and result is fed back into the regulation that cooling water flow controlling valve carries out cooling water, while result being fed back to offline cold But water computing system is modified parameter.Solves the beam blank mould table as caused by single-point non-equilibrium casting Hot Metal in Beam Blank Face Temperature Distribution is extremely uneven, and also uneven caused solidified shell growth is uneven for crystallizer free surface 6-2 Temperature Distribution And the problems such as Longitudinal Surface Cracks.
Calculating step about offline cooling water quantity calculation system are as follows:
A. input crystallizer technological parameter calculates hot-fluid Q；
B. input pulling rate parameter calculates water and stitches area；
C. input cooling range calculates cooling water inflow.
The method for calculating cooling water flow about cooling range computing unit are as follows:
1) the heat Q that surface temperature is taken away within the scope of 1200-1250 DEG C by cooling water when slab goes out crystallizer is calculated；
2) calculate what surface temperature when slab goes out crystallizer was taken away in every 10s by cooling water within the scope of 1200-1250 DEG C Average heat
3) crystallizer cooling water flow W is calculated.
Embodiment 2
The control device of the present embodiment and control method are same as Example 1, the difference is that carrying out to the present invention It is explained further, and provides support to the present invention.
As shown in Figure 4 and Figure 5, in the non-equilibrium casting beam blank mould of Fluid Dynamics single-point, the flow field of molten steel when casting, And after the of short duration time, flow field of the molten steel after diffusion, Fluid Dynamics are different the results show that when carrying out the non-equilibrium casting of single-point Parison crystallizer Flow Field Distribution is extremely uneven, due to the inhomogeneities in flow field, leads to the temperature field of molten steel in beam blank mould Not also uniformly, the cooling condition in each face of crystallizer differs greatly.
As shown in Fig. 2, for beam blank mould schematic diagram used in control device and control method of the invention, different There are casting gate 6-1 for parison crystallizer upper surface, the non-equilibrium casting of single-point for Hot Metal in Beam Blank, near casting gate 6-1 and stay There is mono- side wing edge of casting gate 6-1, temperature is higher in Hot Metal in Beam Blank casting；Far from the free surface 6-2 of casting gate 6-1 in crystallizer Temperature is lower, causes the cooling requirement in four faces of beam blank mould above crystallizer outlet 6-3 different.
For in the above-mentioned non-uniform situation of beam blank mould Flow and Temperature, beam blank mould inhomogeneous cooling is caused Even situation, the present invention provide a kind of non-equilibrium casting beam blank mould cooling controller of single-point and control method.It is existing Each face cooling water flow of copper plate of crystallizer of dynamic control in real time, it is ensured that each face temperature of copper plate of crystallizer it is uniform, it is ensured that it is special-shaped It is consistent that base slab goes out each face temperature when crystallizer, between 1200-1250 DEG C.
Its particular content include: first by offline cooling water quantity calculation system-computed store up different steel grades, different section and Cooling water inflow range under different technical parameters.
Specifically, calculating hot-fluid Q, calculation method according to crystallizer technological parameter first are as follows:
Q=LEV ρ { C1(Te-Tl)+Lf+Cs(Ts-To)}
In formula: the heat that Q-crystallizer molten steel is released, kj/min；
L-each the edge lengths in crystallizer cross section, m；
E-goes out crystallizer shell thickness, m；
V-pulling rate, 2.2m/min；
ρ-molten steel density, kg/m3；
Cl- liquid steel liquor ratio thermal capacitance, kj/ (kg DEG C)；
Cs-solid strand specific heat capacity, kj/ (kg DEG C)；
Lf- latent heat of solidification, kj/kg；
TeMolten steel temperature in-tundish, DEG C；
Tl- Mold temperature, DEG C；
Ts- initial solidification shell temperature, DEG C；
To- go out crystallizer casting blank surface temperature, DEG C.
It then calculates crystallizer water and stitches area F, calculation method are as follows:
F=QkS×106/(3600V)
In formula: F-crystallizer water stitches area, m2；
Qk- unit water flow, m3/ sm, experience value 100-500m3/s·m；
S-crystallizer peripheral length, m；
V-cooling water flow velocity, m/s take 6-10m/s.
Area F is stitched according to the crystallizer water being calculated, cooling water inflow needed for calculating, calculation method are as follows:
W=36 × F × V/1000 (L/min)
In formula: W-cooling water inflow, L/min；
F-crystallizer water stitches area, m2；
V-cooling water flow velocity, m/s take 6-10m/s.
After offline cooling water computing system calculates each face cooling water flow, initial cooling is provided for beam blank mould cooling Water and guides on line real time control system.
On line real time control system includes crystallizer cooling water loop module and cooling range calculates and water calculates list Member, on line real time control system are electrically connected with offline cooling water quantity calculation system.
Water inlet manifold road 5-1 and outfall sewer road 5-2 connects with the refrigerating module both ends in four faces of beam blank mould respectively It connects, water inlet manifold road 5-1 provides cooling water for crystallizer, and outfall sewer road 5-2 carries out water at crystallizer cooling water outlet Collect.
Crystallizer cooling water loop module is calculated with cooling range and water computing unit is electrically connected, crystallizer cooling water Loop module sets up relatively independent refrigerating module to four faces of beam blank mould respectively, and four refrigerating modules are respectively wide face Refrigerating module 4 on the right side of inner arc refrigerating module 1, wide face outer arc refrigerating module 2, leptoprosopy left side refrigerating module 3 and leptoprosopy.Crystallizer The refrigerating module construction in four faces is identical, crystallizer refrigerating module include crystallizer cooling water branch pipe, cooling water flow controlling valve, Cooling water inlet temperature measurer, crystallizer cooling water seam and cooling water outlet temperature measurer；The connection of crystallizer cooling water branch pipe one end There is a water inlet manifold road 5-1, the other end is connected with outfall sewer road 5-2, according to flow of cooling water on crystallizer cooling water branch pipe Direction is equipped with cooling water flow controlling valve, cooling water inlet temperature measurer, crystallizer cooling water seam, cooling water outlet temperature measurer.It is cold But water inlet temperature measurer and cooling water outlet temperature measurer are separately mounted to copper plate of crystallizer two sides, and temperature measurer is numerical value display type Thermal detector is inserted into cooling water, directly displays the temperature of cooling water, or be thermocouple, thermoelectricity resistance type, cooling water temperature is recorded Get off, and sends coolant water temperature numerical value to cooling range computing unit.
Cooling range calculates and water computing unit includes wide face inner arc cooling range calculating and water computing unit 1-6, wide face outer arc cooling range calculates and water computing unit 2-6, the cooling range calculating of leptoprosopy left side and water calculate Unit 3-6 and leptoprosopy right side cooling range calculate and water computing unit 4-6；Wide face inner arc cooling range calculates and water Amount computing unit 1-6 is electrically connected with wide face inner arc refrigerating module 1, and wide face outer arc cooling range calculates and water computing unit 2- 6 are electrically connected with wide face outer arc refrigerating module 2, cooling range calculating and water computing unit 3-6 and leptoprosopy left side on the left of leptoprosopy Refrigerating module 3 is electrically connected, cooling range calculating and water computing unit 4-6 and 4 electricity of leptoprosopy right side refrigerating module on the right side of leptoprosopy Connection.
Water temperature difference is passed in and out to each face cooling water of beam blank mould by crystallizer cooling water inflow dynamic analysis control unit Dynamic analysis are carried out, and the standard temperature difference with 4.5-6 DEG C compares in real time, and then starts cooling water inflow regulation device, thus Ensure that each face cooling range control of beam blank mould carries out within the scope of 4.5-6 DEG C, while by plane of symmetry cooling range Compare, by the regulation of plane of symmetry cooling range within 0.5 DEG C, slab goes out each face temperature when crystallizer and controls in 1200-1250 Within the scope of DEG C.
The method that Inlet and outlet water differential thermal calculation and cooling water flow computing device calculate cooling water flow are as follows:
Q=C × m × Δ θ
In above-mentioned formula:
The heat that surface temperature is taken away within the scope of 1200-1250 DEG C by cooling water when Q-expression slab goes out crystallizer, KJ；
W-expression crystallizer cooling water flow, L/min；
- indicate that surface temperature is taken away in every 10s by cooling water within the scope of 1200-1250 DEG C when slab goes out crystallizer Average heat, KJ；
C-expression cooling water specific heat capacity, KJ/ (kg. DEG C)；
Δ θ-expression crystallizer cooling water passes in and out water temperature difference, DEG C, the standard temperature difference is 4.5-6 DEG C；
The cooling water density of ρ-expression crystallizer, ρ=1 × 103Kg/m3；
T-expression crystallizer cooling water flows through the time of copper plate of crystallizer, min.
Cooling water inflow dynamic analysis control unit to cooling range carry out dynamic analysis, and with 4.5-6 DEG C of the standard temperature difference It is compared, according to comparison result, targetedly regulates and controls cooling water flow and regulate and control cooling water flow regulation device: working as crystallizer Cooling water passes in and out water temperature difference and is higher than 4.5-6 DEG C of the standard temperature difference, and the increase mode for implementing crystallizer cooling water increases cooling water inflow；When Crystallizer cooling water passes in and out water temperature difference and is lower than 4.5-6 DEG C of standard deviation, implements crystallizer cooling water and reduces mode reduction cooling water inflow, So that it is guaranteed that each face temperature of copper plate of crystallizer is almost the same, and plane of symmetry cooling range is less than or equal to 0.5 DEG C.
While each face cooling water flow of on line real time control system real-time monitoring crystallizer, fed back to when by fructufy from Line cooling water quantity calculation system, if cooling water inflow range of the cooling water flow in offline cooling water quantity calculation system-computed in real time It is interior, then casting parameters need not be adjusted, otherwise need to adjust casting parameters.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing What is shown is also one of contents of the present invention, and actual content is not limited thereto.So if the ordinary skill people of this field Member is enlightened by it, without departing from the spirit of the invention, is not inventively designed similar to the technical solution Mode and embodiment, be within the scope of protection of the invention.

Claims (8)

1. a kind of non-equilibrium casting beam blank mould cooling controller of single-point, it is characterised in that: including offline cooling water inflow Computing system, on line real time control system, water inlet manifold road (5-1) and outfall sewer road (5-2)；
The on line real time control system is electrically connected with offline cooling water quantity calculation system；
The on line real time control system includes crystallizer cooling water loop module and cooling range calculates and watermeter Unit is calculated, the crystallizer cooling water loop module is calculated with cooling range and water computing unit is electrically connected, crystallizer Cooling water loop module includes wide face inner arc refrigerating module (1), wide face outer arc refrigerating module (2), leptoprosopy left side refrigerating module (3) With refrigerating module (4) on the right side of leptoprosopy, the water inlet manifold road (5-1) and outfall sewer road (5-2) are cold with wide face inner arc respectively But refrigerating module (4) both ends on the right side of module (1), wide face outer arc refrigerating module (2), leptoprosopy left side refrigerating module (3) and leptoprosopy Connection；
The cooling range calculates and water computing unit is calculated including wide face inner arc cooling range and water calculates list First (1-6), wide face outer arc cooling range calculates and water computing unit (2-6), the cooling range calculating of leptoprosopy left side and water Cooling range on the right side of computing unit (3-6) and leptoprosopy is measured to calculate and water computing unit (4-6)；Wide face inner arc coolant water temperature Difference calculates and water computing unit (1-6) is electrically connected with wide face inner arc refrigerating module (1), wide face outer arc cooling range calculating with Water computing unit (2-6) is electrically connected with wide face outer arc refrigerating module (2), and cooling range calculates on the left of leptoprosopy and water calculates Unit (3-6) is electrically connected with refrigerating module (3) on the left of leptoprosopy, and cooling range calculates and water computing unit (4- on the right side of leptoprosopy 6) it is electrically connected with refrigerating module (4) on the right side of leptoprosopy.
2. the non-equilibrium casting beam blank mould cooling controller of a kind of single-point according to claim 1, feature exist In: the wide face inner arc refrigerating module (1) includes wide face inner arc crystallizer cooling water branch pipe (1-1), wide face inner arc cooling water Flow control valve (1-2), wide face inner arc cooling water inlet temperature measurer (1-3), the wide face inner arc cooling water seam (1-4) of crystallizer and Wide face inner arc cooling water outlet temperature measurer (1-5)；Described wide face inner arc crystallizer cooling water branch pipe (1-1) one end be connected with into Supply mains road (5-1), the other end are connected with outfall sewer road (5-2), on wide face inner arc crystallizer cooling water branch pipe (1-1) according to The direction of flow of cooling water is equipped with wide face inner arc cooling water flow controlling valve (1-2), width face inner arc cooling water inlet temperature measurer (1- 3), the wide face inner arc cooling water seam (1-4) of crystallizer, wide face inner arc cooling water outlet temperature measurer (1-5), the cooling water flow of wide face inner arc Measure controlling valve (1-2), wide face inner arc cooling water inlet temperature measurer (1-3) and wide face inner arc cooling water outlet temperature measurer (1-5) and Wide face inner arc cooling range calculates and water computing unit (1-6) electrical connection；
The wide face outer arc refrigerating module (2) includes wide face outer arc crystallizer cooling water branch pipe (2-1), wide face outer arc cooling water Flow control valve (2-2), wide face outer arc cooling water inlet temperature measurer (2-3), the wide face outer arc cooling water seam (2-4) of crystallizer and Wide face outer arc cooling water outlet temperature measurer (2-5)；Described wide face outer arc crystallizer cooling water branch pipe (2-1) one end be connected with into Supply mains road (5-1), the other end are connected with outfall sewer road (5-2), on wide face outer arc crystallizer cooling water branch pipe (2-1) according to The direction of flow of cooling water is equipped with wide face outer arc cooling water flow controlling valve (2-2), width face outer arc cooling water inlet temperature measurer (2- 3), the wide face outer arc cooling water seam (2-4) of crystallizer, wide face outer arc cooling water outlet temperature measurer (2-5), the cooling water flow of wide face outer arc Measure controlling valve (2-2), wide face outer arc cooling water inlet temperature measurer (2-3) and wide face outer arc cooling water outlet temperature measurer (2-5) and Wide face outer arc cooling range calculates and water computing unit (2-6) electrical connection；
Refrigerating module (3) includes crystallizer cooling water branch pipe (3-1) on the left of leptoprosopy, cooling water on the left of leptoprosopy on the left of the leptoprosopy Flow control valve (3-2), cooling water inlet temperature measurer (3-3) on the left of leptoprosopy, on the left of crystallizer leptoprosopy cooling water seam (3-4) and Cooling water outlet temperature measurer (3-5) on the left of leptoprosopy；On the left of the leptoprosopy one end crystallizer cooling water branch pipe (3-1) be connected with into Supply mains road (5-1), the other end are connected with outfall sewer road (5-2), on the left of leptoprosopy on crystallizer cooling water branch pipe (3-1) according to The direction of flow of cooling water is equipped with cooling water flow controlling valve (3-2) on the left of leptoprosopy, cooling water inlet temperature measurer (3- on the left of leptoprosopy 3), cooling water seam (3-4), leptoprosopy left side cooling water outlet temperature measurer (3-5) on the left of crystallizer leptoprosopy, the cooling water flow in leptoprosopy left side Measure controlling valve (3-2), on the left of leptoprosopy on the left of cooling water inlet temperature measurer (3-3) and leptoprosopy cooling water outlet temperature measurer (3-5) and Cooling range calculates on the left of leptoprosopy and water computing unit (3-6) is electrically connected；
Refrigerating module (4) includes crystallizer cooling water branch pipe (4-1) on the right side of leptoprosopy, cooling water on the right side of leptoprosopy on the right side of the leptoprosopy Flow control valve (4-2), cooling water inlet temperature measurer (4-3) on the right side of leptoprosopy, on the right side of crystallizer leptoprosopy cooling water seam (4-4) and Cooling water outlet temperature measurer (4-5) on the right side of leptoprosopy；On the right side of the leptoprosopy one end crystallizer cooling water branch pipe (4-1) be connected with into Supply mains road (5-1), the other end are connected with outfall sewer road (5-2), on the right side of leptoprosopy on crystallizer cooling water branch pipe (4-1) according to The direction of flow of cooling water is equipped with cooling water flow controlling valve (4-2) on the right side of leptoprosopy, cooling water inlet temperature measurer (4- on the right side of leptoprosopy 3), cooling water seam (4-4), leptoprosopy right side cooling water outlet temperature measurer (4-5) on the right side of crystallizer leptoprosopy, the cooling water flow in leptoprosopy right side Measure controlling valve (4-2), on the right side of leptoprosopy on the right side of cooling water inlet temperature measurer (4-3) and leptoprosopy cooling water outlet temperature measurer (4-5) and Cooling range calculates on the right side of leptoprosopy and water computing unit (4-6) is electrically connected.
3. the non-equilibrium casting beam blank mould cooling controller of a kind of single-point according to claim 2, feature exist In: the wide face inner arc cooling water inlet temperature measurer (1-3) and wide face inner arc cooling water outlet temperature measurer (1-5) are pacified respectively The copper sheet two sides at the wide face inner arc of crystallizer；
The wide face outer arc cooling water inlet temperature measurer (2-3) and wide face outer arc cooling water outlet temperature measurer (2-5) are respectively It is mounted on copper sheet two sides at the wide face outer arc of crystallizer；
Cooling water inlet temperature measurer (3-3) and leptoprosopy left side cooling water outlet temperature measurer (3-5) difference on the left of the leptoprosopy Copper sheet two sides at being mounted on the left of crystallizer leptoprosopy；
Cooling water inlet temperature measurer (4-3) and leptoprosopy right side cooling water outlet temperature measurer (4-5) difference on the right side of the leptoprosopy Copper sheet two sides at being mounted on the right side of crystallizer leptoprosopy.
4. the non-equilibrium casting beam blank mould cooling controller of a kind of single-point according to claim 3, feature exist In: the cooling range calculates and water computing unit regulates and controls unit with plane of symmetry cooling range and is electrically connected, and will be right Title face temperature differential information sends plane of symmetry cooling range regulation unit to, and plane of symmetry cooling range regulates and controls unit and carries out the plane of symmetry Cooling water inflow regulation.
5. the non-equilibrium casting beam blank mould cooling control method of a kind of single-point according to claim 4, feature exist In: the regulation standard of the plane of symmetry cooling range regulation unit is；Plane of symmetry cooling range difference is less than 0.5 DEG C.
6. a kind of non-equilibrium casting beam blank mould cooling control method of single-point, use are described in any one of claim 1 to 5 Device, it is characterised in that: the following steps are included:
1) pass through the cooling water inflow range of offline cooling water quantity calculation system-computed beam blank mould refrigerating module；
2) cooling range of on line real time control system calculates and water computing unit is cold by being mounted on four faces of crystallizer But it is right that wide face inner arc, wide face outer arc, leptoprosopy left side and leptoprosopy is calculated in the temperature measurer of water inlet and cooling water outlet position The cooling range of side, and calculate actually required cooling water inflow；
3) cooling range calculates and water computing unit will calculate gained four face cooling ranges of crystallizer and required cooling Water result carries out dynamic analysis, and dynamic analysis result is fed back to cooling water flow controlling valve regulation cooling water flow；
Dynamic analysis include: to pass through control when four face outlet cooling waters of crystallizer are lower than 4.5 DEG C with import cooling range The cooling water flow controlling valve in four faces reduces cooling water inflow, when four face outlet cooling waters of crystallizer and import cooling range When higher than 6 DEG C, cooling water inflow is increased by the cooling water flow controlling valve in four faces of control, when the outlet cooling of four faces of crystallizer When water and import cooling range are between 4.5 DEG C -6 DEG C, belong to the normal temperature difference of cooling water, without adjusting.
7. the non-equilibrium casting beam blank mould cooling control method of a kind of single-point according to claim 6, feature exist In: the calculating step of the offline cooling water quantity calculation system are as follows:
A. input crystallizer technological parameter calculates hot-fluid Q；
B. input pulling rate parameter calculates water and stitches area；
C. input cooling range calculates cooling water inflow.
8. the non-equilibrium casting beam blank mould cooling control method of a kind of single-point according to claim 6, feature exist In: the method that the cooling range calculates and water computing unit calculates cooling water flow are as follows:
1) the heat Q that surface temperature is taken away within the scope of 1200-1250 DEG C by cooling water when slab goes out crystallizer is calculated；
2) surface temperature when slab goes out crystallizer is calculated to be averaged in every 10s by what cooling water was taken away within the scope of 1200-1250 DEG C Heat
3) crystallizer cooling water flow W is calculated.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110108752A (en) * 2019-06-26 2019-08-09 南京工业大学 Polymer-pyrolysis ignition test system and test method under a kind of self feed back time-varying hot-fluid
CN110369687A (en) * 2019-08-02 2019-10-25 中国重型机械研究院股份公司 A kind of intelligent apparatus and method of the online trapezoidal defect of slab section of amendment in real time
CN110576160A (en) * 2019-09-26 2019-12-17 中冶赛迪工程技术股份有限公司 control system and method for crystallizer water of continuous casting machine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61195745A (en) * 1985-02-25 1986-08-30 Sumitomo Metal Ind Ltd Mold for continuous casting of steel
JPH03297541A (en) * 1990-04-18 1991-12-27 Kawasaki Steel Corp Mold for continuous casting equipment
EP1256400A1 (en) * 2001-05-10 2002-11-13 SMS Demag Process for delaying the formation of deposits in the cooling channels of continuous casting moulds
KR20120110584A (en) * 2011-03-30 2012-10-10 현대제철 주식회사 Device for controlling cooling of mold for thin slab and method therefor
CN102847904A (en) * 2012-09-11 2013-01-02 首钢总公司 System and method for dynamic control of cooling of slab continuous casting crystallizer
CN103192047A (en) * 2013-02-21 2013-07-10 内蒙古包钢钢联股份有限公司 Automatic control system and control method for cooling water of crystallizer for novel continuous casting machine
CN104162638A (en) * 2014-08-14 2014-11-26 中国重型机械研究院股份公司 Crystallizer cooling water control device and method
CN105149538A (en) * 2015-09-17 2015-12-16 河北钢铁股份有限公司邯郸分公司 Device and method for ensuring stability of cooling water temperature of crystallizer
CN205519543U (en) * 2016-02-01 2016-08-31 浙江天宁合金材料有限公司 A cooling system for alloy casting system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61195745A (en) * 1985-02-25 1986-08-30 Sumitomo Metal Ind Ltd Mold for continuous casting of steel
JPH03297541A (en) * 1990-04-18 1991-12-27 Kawasaki Steel Corp Mold for continuous casting equipment
EP1256400A1 (en) * 2001-05-10 2002-11-13 SMS Demag Process for delaying the formation of deposits in the cooling channels of continuous casting moulds
KR20120110584A (en) * 2011-03-30 2012-10-10 현대제철 주식회사 Device for controlling cooling of mold for thin slab and method therefor
CN102847904A (en) * 2012-09-11 2013-01-02 首钢总公司 System and method for dynamic control of cooling of slab continuous casting crystallizer
CN103192047A (en) * 2013-02-21 2013-07-10 内蒙古包钢钢联股份有限公司 Automatic control system and control method for cooling water of crystallizer for novel continuous casting machine
CN104162638A (en) * 2014-08-14 2014-11-26 中国重型机械研究院股份公司 Crystallizer cooling water control device and method
CN105149538A (en) * 2015-09-17 2015-12-16 河北钢铁股份有限公司邯郸分公司 Device and method for ensuring stability of cooling water temperature of crystallizer
CN205519543U (en) * 2016-02-01 2016-08-31 浙江天宁合金材料有限公司 A cooling system for alloy casting system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110108752A (en) * 2019-06-26 2019-08-09 南京工业大学 Polymer-pyrolysis ignition test system and test method under a kind of self feed back time-varying hot-fluid
CN110108752B (en) * 2019-06-26 2024-04-09 南京工业大学 Polymer pyrolysis ignition experimental system under self-feedback time-varying heat flow and testing method
CN110369687A (en) * 2019-08-02 2019-10-25 中国重型机械研究院股份公司 A kind of intelligent apparatus and method of the online trapezoidal defect of slab section of amendment in real time
CN110369687B (en) * 2019-08-02 2024-04-30 中国重型机械研究院股份公司 Intelligent device and method for online real-time correction of trapezoidal defects of slab section
CN110576160A (en) * 2019-09-26 2019-12-17 中冶赛迪工程技术股份有限公司 control system and method for crystallizer water of continuous casting machine

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