CN115740380A - Slab hot charging and hot delivery blank discharging system and slab hot charging and hot delivery blank discharging method - Google Patents

Slab hot charging and hot delivery blank discharging system and slab hot charging and hot delivery blank discharging method Download PDF

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CN115740380A
CN115740380A CN202211455039.3A CN202211455039A CN115740380A CN 115740380 A CN115740380 A CN 115740380A CN 202211455039 A CN202211455039 A CN 202211455039A CN 115740380 A CN115740380 A CN 115740380A
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roller
hot
continuous casting
lifting
roller way
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余军
熊杰
曹永峰
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MCC Southern Continuous Casting Technology Engineering Co Ltd
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MCC Southern Continuous Casting Technology Engineering Co Ltd
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Abstract

The application provides a slab hot charging and hot delivery blank discharging system and a slab hot charging and hot delivery blank discharging method, wherein a first double-flow slab continuous casting machine and a second double-flow slab continuous casting machine are arranged outside the same side of a transverse moving mechanism; the first trolley is used for conveying a first continuous casting blank to a first hot conveying roller way through a first horizontal roller surface and a slope roller surface; the second trolley is used for conveying a second continuous casting billet to a second hot roller conveying table through a second horizontal roller surface; the first hot roller conveying table and the second hot roller conveying table are arranged outside the other side of the transverse moving mechanism, the first hot roller conveying table is adjacent to one end face, connected with the slope roller face, of the second horizontal roller face, and the second hot roller conveying table is adjacent to the other end face of the second horizontal roller face; the first hot roller conveying way is used for sequentially conveying the first continuous casting billets to the first lifting mechanism and the first turntable roller way, and the second hot roller conveying way is used for sequentially conveying the second continuous casting billets to the second lifting mechanism and the second turntable roller way. The device and the method have low cost and high operation efficiency.

Description

Slab hot charging and hot delivery blank discharging system and slab hot charging and hot delivery blank discharging method
Technical Field
The application relates to the field of metallurgical continuous casting, in particular to a slab hot charging and hot delivery ejection system and a slab hot charging and hot delivery ejection method.
Background
With the continuous development of the steel industry, the steel-making level of steel manufacturing enterprises is also increased day by day. In order to ensure the environmental protection and sustainable development of energy in the metallurgical process, the metallurgical industry must actively explore green manufacturing and continuously optimize the steel manufacturing process. Continuous casting machines are known to be an important component of metallurgical steelmaking plants. Slabs produced by a continuous casting machine are lifted off line and transported to a steel rolling workshop after being stacked, so that a large amount of manufacturing time and energy are consumed. In order to realize energy conservation, consumption reduction, green and low carbon, the qualified fixed-length plate blank produced by the continuous casting machine must be subjected to hot feeding and hot charging in time.
The hot-conveying and hot-charging of the slab not only comprehensively considers the production process flow, field turnover, equipment layout and the like of a steelmaking continuous casting workshop and a steel rolling workshop, but also needs to match the productivity of one or two double-flow slab continuous casting machines with the productivity of one hot rolling production line, so that the production cost of ton steel can be successfully and effectively reduced, the production efficiency is increased, and huge economic benefits are brought to enterprises.
A blank discharging system of a slab caster usually comprises a blank discharging roller way, a transverse trolley, a down-line roller way, a hot conveying roller way and other equipment, and under general conditions, the blank discharging roller way conveys a casting blank to a blank discharging span; the transverse trolley is arranged on the ejection span, and the running direction of the transverse trolley is vertical to the ejection direction of the casting blank; the hot delivery roller way and the off-line roller way are arranged on the slab warehouse span, the hot delivery roller way thermally delivers the casting blank to a steel rolling workshop, and the off-line roller way can hoist the casting blank to be off-line stacked. If the matching is not complete, the series of process flows can cause the casting blank to be off-line in time, so that the casting blank is accumulated and jammed, the casting machine can be stopped from flowing off seriously, and the normal production of a steel enterprise is influenced.
In the planning process of a continuous casting slab hot conveying and hot charging production line, four casting flow discharging production lines of two double-flow slab continuous casting machines and two hot conveying production lines butted with a steel rolling turntable roller table are involved. Because the distance of the two conventional double-flow slab caster knockout center lines is far, the farthest distance can reach about 110 meters, and if the slab conveying speed of the transverse trolley is not fast enough and the stopping precision is not accurate enough, the slab hot-conveying hot-charging production efficiency is greatly restricted; because one of the two double-flow slab continuous casting machines is put into production, the elevation of the slab discharging roller surface is solidified, the equipment relationship in the steel rolling workshop is also formed, the elevation of the turntable roller table roller surface is also solidified, and the height difference between the two elevation is 3 meters; therefore, when the surface of the knockout roll of the other continuous casting machine is planned and hot-conveying and hot-loading equipment is arranged, calculation and comparison of all layers are required, otherwise, the continuous casting slab cannot be normally hot-conveyed to a steel rolling workshop to be heated and then rolled.
Disclosure of Invention
An object of the present application is to provide a slab hot charging and hot discharging system and a slab hot charging and hot discharging method, so as to solve the problem of low hot charging and hot discharging transportation efficiency of the existing continuous casting slab.
The technical scheme of the application is as follows:
a slab hot charging and hot delivery billet discharging system comprises a first double-flow slab continuous casting machine, a second double-flow slab continuous casting machine, a transverse moving mechanism, a first hot delivery roller way, a second hot delivery roller way, a first lifting mechanism, a second lifting mechanism, a first rotary table roller way and a second rotary table roller way, wherein the transverse moving mechanism is provided with a first horizontal roller surface, a slope roller surface and a second horizontal roller surface which are sequentially connected; the first double-flow plate blank continuous casting machine and the second double-flow plate blank continuous casting machine are arranged at the positions close to two ends outside the same side of the transverse moving mechanism at intervals in parallel, the height of the roller surface of the first double-flow plate blank continuous casting machine is 2.2 meters higher than that of the roller surface of the second double-flow plate blank continuous casting machine, the height of the roller surface of the second double-flow plate blank continuous casting machine is 0.8 meter higher than that of the roller surface of the second rotary table, the height of the roller surface of the first rotary table is the same as that of the roller surface of the second rotary table, the height of the first horizontal roller surface is the same as that of the roller surface of the first double-flow plate blank continuous casting machine, and the height of the second horizontal roller surface is the same as that of the roller surface of the second double-flow plate blank continuous casting machine; the first double-flow slab caster is adjacent to the first horizontal roll surface and used for conveying a produced first continuous casting slab to the first horizontal roll surface, and the first continuous casting slab is conveyed to the first hot roller conveyor through the transverse moving mechanism; the second continuous casting slab caster is close to the second horizontal roll surface and used for conveying a newly produced second continuous casting slab to the second horizontal roll surface, and the second continuous casting slab is conveyed to the second hot roller conveying way through the transverse moving mechanism; the first hot roller conveying table and the second hot roller conveying table are arranged outside the other side of the transverse moving mechanism in parallel at intervals, the first hot roller conveying table is adjacent to one end face, connected with the slope roller face, of the second horizontal roller face, and the second hot roller conveying table is adjacent to the other end face of the second horizontal roller face; the first hot roller conveyor, the first lifting mechanism and the first rotary table roller conveyor are sequentially connected and positioned on the same straight line, and the central axis of the first double-flow slab continuous casting machine is parallel to the central axis of the first hot roller conveyor and is vertical to the central axis of the transverse moving mechanism; the second hot roller conveyor, the second lifting mechanism and the second turntable roller conveyor are sequentially connected and positioned on the same straight line, and the central axis of the second double-flow-plate blank continuous casting machine is parallel to the central axis of the second hot roller conveyor and is vertical to the central axis of the transverse moving mechanism; the first hot conveying roller way is used for sequentially conveying the first continuous casting blanks to the first lifting mechanism and the first rotary table roller way, the first lifting mechanism is used for reducing the height of the roller surface of the first continuous casting blanks, the second hot conveying roller way is used for sequentially conveying the second continuous casting blanks to the second lifting mechanism and the second rotary table roller way, and the second lifting mechanism is used for reducing the height of the roller surface of the first continuous casting blanks.
As a technical scheme of the present application, the first double-flow slab caster comprises two sets of first run-out roller ways and a first lifting baffle, wherein the two sets of first run-out roller ways are arranged in parallel at intervals, and are rollably connected to a position outside one side of the traversing mechanism and near one end of the traversing mechanism, so as to transport the first casting blank to the first horizontal roller way; the first lifting baffle is vertically arranged at a billet outlet of the first billet roller way in a lifting manner.
As a technical scheme of the present application, the second double-flow slab caster comprises two groups of second ejection roller ways and a second lifting baffle, wherein the two groups of second ejection roller ways are arranged in parallel at intervals, can be connected to a position outside one side of the transverse moving mechanism and close to the other end in a rolling manner, and are used for transporting the second continuous casting slab to the second horizontal roller way; and the second lifting baffle is vertically arranged at the billet outlet of the second billet discharging roller way in a lifting manner.
As a technical scheme of the present application, the traversing mechanism includes a first trolley, a second trolley, a first horizontal roller way, a slope roller way, a second horizontal roller way, a first fixed baffle and a second fixed baffle; the first horizontal roller way, the slope roller way and the second horizontal roller way are sequentially connected and the heights of the first horizontal roller way, the slope roller way and the second horizontal roller way are sequentially reduced, the first horizontal roller way is arranged horizontally, the height of the first horizontal roller way is the same as the height of the roller surface of the first double flow slab continuous casting machine, and the upper surface of the first horizontal roller way is the first horizontal roller surface; the slope roller way is arranged in a slope shape, the height of the slope roller way is gradually reduced from the first horizontal roller way to the second horizontal roller way, and the upper surface of the slope roller way is the slope roller surface; the second horizontal roller way is horizontally arranged, the height of the second horizontal roller way is the same as the height of the roller surface of the second double-flow-plate blank continuous casting machine, and the upper surface of the second horizontal roller way is the second horizontal roller surface; the first fixed baffle is fixedly arranged on the other side, away from the first double flow slab continuous casting machine, of the first horizontal roller way, and the second fixed baffle is fixedly arranged on the other side, away from the first double flow slab continuous casting machine, of the second horizontal roller way; the first trolley is movably arranged at the end part of the first horizontal roller way and is used for conveying the first continuous casting blank to the first hot conveying roller way through the slope roller way; the second trolley is movably arranged at the end part of the second horizontal roller way and is used for conveying the second continuous casting billet to the second hot conveying roller way.
As a technical scheme of this application, the relative both sides of sideslip mechanism are all installed the signal tracker at interval on the length direction for real-time feedback first continuous casting billet, second continuous casting billet first platform truck and the position of second platform truck.
As a technical scheme of the application, the transverse moving speed of the first trolley is 60-80 m/min.
As a technical scheme of this application, the slope design of slope roll table is less than or equal to 3%.
As a technical scheme of the present application, the first lifting mechanism includes a first lifting roller bed, two sets of first lifting rollers, a first lifting hydraulic cylinder, and two sets of first slope lifting slide rails; the two groups of first slope lifting slide rails are arranged between the first hot roller way and the first rotary table roller way in parallel at intervals, and the height of the first slope lifting slide rails is gradually reduced from the first hot roller way to the first rotary table roller way; two ends of the bottom of the first lifting roller way are respectively arranged on the corresponding first slope lifting slide rails in a lifting and moving manner through the first lifting idler wheels; the first lifting hydraulic cylinder is installed between the two groups of first slope lifting slide rails, and the driving end of the first lifting hydraulic cylinder is in transmission connection with the bottom, close to the first hot conveying roller way, of the first lifting roller way and used for driving the first lifting roller way to lift.
As a technical scheme of the present application, the second lifting mechanism includes a second lifting roller bed, two sets of second lifting rollers, a second lifting hydraulic cylinder, and two sets of second slope lifting slide rails; the two groups of second slope lifting slide rails are arranged between the second hot roller conveying way and the second turntable roller way in parallel at intervals, and the height of the second slope lifting slide rails is gradually reduced from the second hot roller conveying way to the direction of the second turntable roller way; two ends of the bottom of the second lifting roller way are respectively arranged on the corresponding second slope lifting slide rails in a lifting and moving manner through the second lifting roller; the second lifting hydraulic cylinder is installed between the two groups of second slope lifting slide rails, and the driving end of the second lifting hydraulic cylinder is in transmission connection with the bottom, close to the second hot conveying roller way, of the second lifting roller way and used for driving the second lifting roller way to lift.
A slab hot charging and hot delivery ejection method adopts the slab hot charging and hot delivery ejection system to transport slabs; the method comprises the following steps:
respectively stopping transporting the first continuous casting blank on the first double-flow slab continuous casting machine and the second continuous casting blank on the second double-flow slab continuous casting machine, lowering a first lifting baffle and a second lifting baffle, conveying the first continuous casting blank to a first horizontal roller way of the transverse moving mechanism, and conveying the second continuous casting blank to a second horizontal roller way of the transverse moving mechanism; when the first continuous casting blank reaches a first fixed baffle plate on the first horizontal roller way, stopping the operation of the first horizontal roller way; when the second continuous casting billet reaches a second fixed baffle on the second horizontal roller way, stopping the operation of the second horizontal roller way;
step two, respectively starting the first trolley and the second trolley, wherein the first trolley drives the first continuous casting blank to sequentially pass through the first horizontal roller way and the first slope roller way, and the second trolley drives the second continuous casting blank to pass through the second horizontal roller way;
when the first continuous casting blank reaches a position close to the first hot conveying roller way, gradually reducing the transverse moving speed of the first trolley until the roller way center line of the first trolley is aligned with the center line of the first hot conveying roller way, stopping the first trolley, and conveying the first continuous casting blank to the first hot conveying roller way through the rotation of the first horizontal roller way; when the second continuous casting blank reaches a position close to the second hot roller conveyor, gradually reducing the transverse moving speed of the second trolley until the roller conveyor center line of the second trolley is aligned with the center line of the second hot roller conveyor, stopping the second trolley, and conveying the second continuous casting blank onto the second hot roller conveyor through the rotation of the second horizontal roller conveyor;
step four, when the first continuous casting blank is transported to a position close to a first lifting roller way on the first lifting mechanism on the first thermal conveying roller way, the running speed of the first thermal conveying roller way is reduced to 10m/min, when the first continuous casting blank enters the first lifting roller way, the running of the first lifting roller way is stopped, the first lifting roller way is integrally reduced by 0.8 meter through a first lifting hydraulic cylinder in the first lifting mechanism, so that the height of the first continuous casting blank is the same as the height of the roller surface of the first turntable roller way, and then the first continuous casting blank enters the first turntable roller way to start the next rolling process; when the second continuous casting billet is transported to a position close to a second lifting roller way on a second lifting mechanism on the second hot roller way, the running speed of the second hot roller way is reduced to 10m/min, when the second continuous casting billet enters the inside of the second lifting roller way, the second lifting roller way is stopped to run, and the second lifting roller way is wholly reduced by 0.8 m through a second lifting hydraulic cylinder in the second lifting mechanism, so that the second continuous casting billet is as high as the roller surface of the second turntable roller way, and then enters the second turntable roller way to start the next rolling process. The beneficial effect of this application:
according to the slab hot charging and hot delivery billet discharging system and the slab hot charging and hot delivery billet discharging method, the reasonable matching problem of the continuous casting workshop billet discharging production line and the steel rolling workshop hot delivery production line is solved, the system can reasonably complete the remote transverse hot delivery of four stream slabs produced by two double-stream slab continuous casting machines, meanwhile, the successful matching of the continuous casting workshop billet discharging roller surface and the steel rolling workshop turntable roller surface can be realized on the hot delivery line, the newly-built hot delivery billet discharging system is effectively utilized to hot deliver the four stream slabs to the corresponding steel rolling production line, and the high energy-saving, environment-friendly and economic benefits are achieved. The novel second double-flow plate blank continuous casting machine has the advantages that the roll surface elevation of the newly-built second double-flow plate blank continuous casting machine and the roll surface elevation of the second hot delivery roll are reasonably designed, and the hot delivery of the four-flow continuous casting blanks corresponding to the two hot delivery production lines is completed on the premise that the equipment investment is reduced as much as possible. And moreover, the advantage that the first double-flow slab continuous casting machine is far away from the first hot delivery roller table is fully utilized, the elevation of the roller surface of the first hot delivery roller table relative to the first horizontal roller surface is reduced by 2.2 meters, the required gradient is reduced to be not more than 3 percent, and the stability of the transverse moving and slab transporting of the first trolley on the slope roller table is favorably ensured. In addition, the system reasonably utilizes the signal acquisition of the casting blank signal tracker, timely feeds back the signal to a PLC control system of the casting machine, optimizes the blank discharging rhythm of the casting blank and the transverse trolley by combining the operation of a frequency converter of the continuous casting machine, and greatly improves the hot delivery and blank discharging efficiency. Moreover, the process scheme is simple, the equipment type structure is simple, the heat transfer logic is clear, the production interface is friendly, and the operation and control of a user are easy; meanwhile, the construction cost and the later maintenance cost are reduced, and the method has better transportability and extremely high economic value.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic view of a slab hot charging and hot delivery ejection system provided in an embodiment of the present application;
fig. 2 is a schematic view of a first dual flow slab caster according to an embodiment of the present application;
FIG. 3 is a schematic view of a second dual stream slab caster according to an embodiment of the present application;
FIG. 4 is a schematic view of a traversing mechanism according to an embodiment of the present application;
FIG. 5 is a schematic view of a first trolley provided in an embodiment of the present application;
FIG. 6 is a schematic view of a first cart provided in an embodiment of the present application;
fig. 7 is a schematic view illustrating a lifting process of the first lifting mechanism according to the embodiment of the present application;
fig. 8 is a schematic view of a lifting process of the second lifting mechanism according to the embodiment of the present application.
Icon: 1-a first double-flow slab caster; 2-a second double-flow slab caster; 3-a first hot roller bed; 4-a second hot roller bed; 5-a first lifting mechanism; 6-a second lifting mechanism; 7-a first turntable roller bed; 8-a second turntable roller bed; 9-a first horizontal roll surface; 10-slope roll surface; 11-a second horizontal roll surface; 12-first casting blank; 13-a second continuous casting slab; 14-a first knockout roller bed; 15-a first lifting baffle; 16-a second ejection roller bed; 17-a second lifting baffle; 18-a first trolley; 19-a second trolley; 20-a first horizontal roller bed; 21-slope roller way; 22-a second horizontal roller bed; 23-a first fixed baffle; 24-a second fixed baffle; 25-a signal tracker; 26-a first lifting roller bed; 27-a first lifting roller; 28-a first hydraulic hoist cylinder; 29-a first ramp-up slide rail; 30-a second lifting roller bed; 31-a second lifting roller; 32-a second hydraulic hoist cylinder; 33-a second ramp-up slide rail; 34-a canopy; 35-steel gap bridge; 36-blank blocking plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
Further, in the present application, unless expressly stated or limited otherwise, the first feature may be directly contacting the second feature or may be directly contacting the second feature, or the first and second features may be contacted with each other through another feature therebetween, not directly contacting the second feature. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
Example (b):
referring to fig. 1 and fig. 2 to 8, the application provides a slab hot charging and hot delivery and ejection system which can reasonably complete the remote transverse hot delivery of four slab streams produced by two double-flow slab continuous casting machines, can realize the successful matching of the ejection roll surface of a continuous casting workshop and the roll surface of a turntable of a steel rolling workshop on a hot delivery line, effectively utilizes a newly-built hot delivery and ejection system to hot charge the four slab streams to corresponding steel rolling production lines, and has higher energy-saving, environmental-friendly and economic benefits. The device mainly comprises a first double-flow plate blank continuous casting machine 1, a second double-flow plate blank continuous casting machine 2, a transverse moving mechanism, a first hot roller conveying table 3, a second hot roller conveying table 4, a first lifting mechanism 5, a second lifting mechanism 6, a first rotary table roller table 7 and a second rotary table roller table 8, wherein the transverse moving mechanism is provided with a first horizontal roller surface 9, a slope roller surface 10 and a second horizontal roller surface 11 which are sequentially connected; the first double-flow plate blank continuous casting machine 1 and the second double-flow plate blank continuous casting machine 2 are parallelly and alternately arranged at the positions, close to two ends, on the same side of the transverse moving mechanism, the height of a roller surface of the first double-flow plate blank continuous casting machine 1 is 2.2 meters higher than that of the roller surface of the second double-flow plate blank continuous casting machine 2, the height of a roller surface of the second double-flow plate blank continuous casting machine 2 is 0.8 meter higher than that of a roller surface of a second rotary table roller table 8, the height of a roller surface of a first rotary table roller table 7 is the same as that of the roller surface of the second rotary table roller table 8, the height of a first horizontal roller surface 9 is the same as that of the roller surface of the first double-flow plate blank continuous casting machine 1, and the height of a second horizontal roller surface 11 is the same as that of the roller surface of the second double-flow plate blank continuous casting machine 2; meanwhile, the first double-flow slab caster 1 is adjacent to the first horizontal roll surface 9 and used for conveying the produced first continuous casting slab 12 to the first horizontal roll surface 9, and the first continuous casting slab 12 is conveyed to the first hot conveying roller table 3 through a transverse moving mechanism; the second double-fluid slab caster 2 is adjacent to the second horizontal roll surface 11 and used for conveying a newly-produced second continuous casting slab 13 to the second horizontal roll surface 11, and the second continuous casting slab 13 is conveyed to the second hot delivery roller table 4 through the transverse moving mechanism; the first hot roller conveying table 3 and the second hot roller conveying table 4 are arranged outside the other side of the transverse moving mechanism in parallel at intervals, the first hot roller conveying table 3 is adjacent to one end face, connected with the slope roller surface 10, of the second horizontal roller surface 11, and the second hot roller conveying table 4 is adjacent to the other end face of the second horizontal roller surface 11; the first hot roller conveyor 3, the first lifting mechanism 5 and the first turntable roller conveyor 7 are sequentially connected and positioned on the same straight line, and the central axis of the first double-flow slab continuous casting machine 1 is parallel to the central axis of the first hot roller conveyor 3 and is vertical to the central axis of the transverse moving mechanism; the second hot roller conveyor 4, the second lifting mechanism 6 and the second turntable roller conveyor 8 are sequentially connected and positioned on the same straight line, and the central axis of the second double-flow slab continuous casting machine 2 is parallel to the central axis of the second hot roller conveyor 4 and is vertical to the central axis of the transverse moving mechanism; the first hot roller conveying table 3 is used for sequentially conveying first continuous casting blanks 12 to the first lifting mechanism 5 and the first rotary table roller table 7, the first lifting mechanism 5 is used for reducing the height of the roller surface of the first continuous casting blanks 12, the second hot roller conveying table 4 is used for sequentially conveying second continuous casting blanks 13 to the second lifting mechanism 6 and the second rotary table roller table 8, and the second lifting mechanism 6 is used for reducing the height of the roller surface of the first continuous casting blanks 12.
Further, the first double-flow slab continuous casting machine 1 comprises two groups of first knockout roller beds 14 and first lifting baffles 15; the two groups of first ejection roller ways 14 are arranged in parallel at intervals, can be connected to the position outside one side of the transverse moving mechanism and close to one end in a rolling manner, and are used for conveying the first continuous casting blank 12 to the first horizontal roller way 20; meanwhile, the first lifting baffle 15 is vertically installed at the ejection port of the first ejection roller bed 14 in a liftable manner. The second double-flow slab continuous casting machine 2 comprises two groups of second knockout roller tables 16 and second lifting baffles 17; wherein, the two groups of second ejection roller beds 16 are arranged in parallel at intervals, can be connected to the position outside one side of the transverse moving mechanism and close to the other end in a rolling manner, and are used for transporting the second continuous casting billets 13 to the second horizontal roller bed 22; in addition, the second lifting baffle 17 is vertically installed at the ejection port of the second ejection roller bed 16 in a liftable manner.
The transverse moving mechanism comprises a first trolley 18, a second trolley 19, a first horizontal roller way 20, a slope roller way 21, a second horizontal roller way 22, a first fixed baffle 23 and a second fixed baffle 24; the first horizontal roller way 20 is horizontally arranged, the height of the roller surface of the first horizontal roller way 20 is the same as that of the roller surface of the first double flow slab continuous casting machine 1, and the upper surface of the first horizontal roller way 20 is a first horizontal roller surface 9; meanwhile, the slope roller bed 21 is arranged in a slope shape, the height of the slope roller bed is gradually reduced from the first horizontal roller bed 20 to the second horizontal roller bed 22, and the upper surface of the slope roller bed 21 is a slope roller surface 10; the second horizontal roller table 22 is arranged horizontally, the height of the roller surface of the second horizontal roller table 22 is the same as that of the roller surface of the second double-flow slab caster 2, and the upper surface of the second horizontal roller table 22 is a second horizontal roller surface 11; the first fixed baffle 23 is fixedly arranged on the other side of the first horizontal roller table 20 far away from the first double flow slab caster 1, and the second fixed baffle 24 is fixedly arranged on the other side of the second horizontal roller table 22 far away from the first double flow slab caster 1; the first trolley 18 is movably arranged at the end part of the first horizontal roller way 20 and is used for conveying the first continuous casting blank 12 to the first hot conveying roller way 3 through a slope roller way 21, and the first trolley 18 is driven to run through a motor and a speed reducer on the first trolley; the second trolley 19 is movably arranged at the end of the second horizontal roller table 22 and is used for conveying the second continuous casting billet 13 to the second hot roller table 4, and the second trolley 19 is driven to run by a motor and a speed reducer thereon. Therefore, the first trolley 18 receives the slab from the first double-flow slab continuous casting machine 1 on the central line of the produced 1 double-flow slab, and conveys the slab to the first hot roller table 3 on the central line of the 1 st hot roller table, and the transverse moving mechanism adopts the transverse moving mode of the slope roller table 21 for transportation.
In order to ensure the continuation of the production work of the continuous casting machine for 4 cast slabs, two or 3 traverse carriages need to be provided in the traverse mechanism.
Meanwhile, a plurality of signal trackers 25 are installed on two opposite sides of the first horizontal roller way 20, the slope roller way 21 and the second horizontal roller way 22 at intervals along the length direction, and the signal trackers 25 are used for feeding back the positions of the first continuous casting blank 12, the second continuous casting blank 13, the first trolley 18 and the second trolley 19 in real time. According to the casting blank signal trackers 25 at all positions in the hot conveying and transverse moving system, the traveling and transverse moving positions and the running and knockout positions of the first continuous casting blank 12 and the second continuous casting blank 13 are tracked, and the knockout transport speed and the equipment action state are calculated and controlled by utilizing a continuous casting machine frequency converter and a PLC (programmable logic controller) system in the prior art, so that the matching of the 4-flow casting blank knockout and the steel rolling speed is ensured, and the knockout rhythm is convenient to be controlled by a program. Both the frequency converter and the PLC system of the continuous casting machine can adopt the structure in the prior art, and the specific structure and the working principle are not repeated herein.
In addition, for 1 first double-flow slab caster 1 which is already put into production, the distance from the first casting center line to the center line of the 1 st hot feed roller table is about 110 m farthest, so that the transverse moving speed interval of the first trolley 18 is set to be 60 m/min-80 m/min to ensure smooth billet discharging rhythm.
It should be noted that, because the roll surface of 1 first dual-flow slab continuous casting machine 1 which is already put into production cannot be changed, the relative roll surface positioning is ± 0 meter, and for the other 1 newly-built second dual-flow slab continuous casting machines 2, the roll surface of the second dual-flow slab continuous casting machine 2 is designed to be 2.2 meters lower than the roll surface of the first dual-flow slab continuous casting machine 1 which is already put into production, that is, the relative roll surface of the newly-built second dual-flow slab continuous casting machine 2 is-2.2 meters; meanwhile, the roll surface of the newly-built second double-flow plate blank continuous casting machine 2 is 0.8 m higher than that of the rolled steel blank, namely the roll surface of the rolled steel blank is-3.0 m opposite to that of the rolled steel blank; thus, the relative height difference between the rolled steel receiving blank roll surface and the roll surface of the 1 first double-flow slab continuous casting machine 1 which is put into production is 3 meters. Moreover, a slab produced by the first double flow slab continuous casting machine 1 transversely moves a casting blank on a slope roller way 21 through a first trolley 18, and the slope of the slope roller way 21 is not more than 3%; the first lifting roller way 26 on the first heat conveying line can reduce the roller surface of the first continuous casting blank 12 by 0.8 meter by using the first lifting hydraulic cylinder 28, and the second lifting roller way 30 on the second heat conveying line can reduce the roller surface of the second continuous casting blank 13 by 0.8 meter by using the second lifting hydraulic cylinder 32.
In addition, the two first hot roller conveying tables 3 and the two second hot roller conveying tables 4 are respectively arranged on the two corresponding hot center conveying lines and used for conveying the plate blank. The two first lifting mechanisms 5 and the second lifting mechanisms 6 are respectively arranged on corresponding hot conveying central lines and are used for reducing the height of the roll surface of the plate blank. Because the two hot blank sending lines cross the road below, in this embodiment, two sets of hot-sending public and auxiliary facilities need to be designed to be installed right below the corresponding first hot-sending roller way 3 and the second hot-sending roller way 4, and the hot-sending public and auxiliary facilities include civil engineering, steel structures and other public and auxiliary equipment in the prior art. The first lifting mechanism 5 comprises a first lifting roller bed 26, two groups of first lifting rollers 27, a first lifting hydraulic cylinder 28 and two groups of first slope lifting slide rails 29; two groups of first slope lifting slide rails 29 are arranged between the first hot roller conveyor 3 and the first rotary table roller conveyor 7 in parallel at intervals, and the height of the first slope lifting slide rails 29 is gradually reduced from the first hot roller conveyor 3 to the first rotary table roller conveyor 7; two ends of the bottom of the first lifting roller way 26 are respectively arranged on the corresponding first slope lifting slide rails 29 in a lifting and moving way through first lifting rollers 27; the first lifting hydraulic cylinder 28 is installed between the two sets of first slope lifting slide rails 29, and the driving end is connected to the bottom of the first lifting roller way 26 close to the first hot conveying roller way 3 in a transmission manner, so as to drive the first lifting roller way 26 to lift.
Meanwhile, the second lifting mechanism 6 comprises a second lifting roller bed 30, two groups of second lifting rollers 31, a second lifting hydraulic cylinder 32 and two groups of second slope lifting slide rails 33; two groups of second slope lifting slide rails 33 are arranged between the second hot roller conveyor 4 and the second turntable roller conveyor 8 at intervals in parallel, and the height of the second slope lifting slide rails 33 is gradually reduced from the second hot roller conveyor 4 to the second turntable roller conveyor 8; two ends of the bottom of the second lifting roller bed 30 are respectively arranged on the corresponding second slope lifting slide rails 33 in a lifting and moving manner through second lifting rollers 31; the second hydraulic cylinder 32 is installed between two sets of second slope lifting slide rails 33, and the driving end is connected to the bottom of the second lifting roller bed 30 near the second hot-conveying roller bed 4 in a transmission manner, so as to drive the second lifting roller bed 30 to lift.
Therefore, the distance from the tail end of a continuous casting machine workshop to a rolled steel receiving position of a hot conveying line is about 90 meters, and therefore the butt joint of two roll surfaces is completed after the elevation of the slab can be reduced by the first lifting mechanism 5 and the second lifting mechanism 6 respectively in the hot conveying process of the first continuous casting blank 12 and the second continuous casting blank 13.
It should be noted that, in the system, the first ejection roller table 14, the second ejection roller table 16, the first lifting baffle 15, and the second lifting baffle 17 of each strand on the first dual stream slab caster 1 and the second dual stream slab caster 2 are used, and under the cooperation of the signal tracker 25, the casting blank produced by each strand is conveyed to the corresponding first horizontal roller table 20 and the second horizontal roller table 22, and the casting blank stops automatically after running to the first fixed baffle 23 and the second fixed baffle 24. And reasonably setting the transverse moving speed of the first trolley 18 and the second trolley 19 based on the distance between the central line of each casting flow and the central line of the hot delivery, and completing transverse moving and billet discharging after the slab transversely moves to the corresponding hot delivery line. The casting blanks on the first trolley 18 and the second trolley 19 are conveyed to corresponding hot conveying roller ways by using a first horizontal roller way 20, a slope roller way 21 and a second horizontal roller way 22, and the casting blanks are conveyed to a first rotary table roller way 7 and a second rotary table roller way 8 for rolling and receiving blanks under the guide of a casting blank signal tracker 25, so that the whole blank discharging process is completed.
Firstly, a hot-conveying and transverse-moving blank discharging subsystem from a first plate blank discharging line to a steel rolling hot-conveying line is described in detail:
because the first slab discharging line is far away from the first continuous casting hot conveying line, the first continuous casting slab 12 produced by the first slab discharging line stops moving on the two first discharging roller ways 14, and after the first lifting baffle 15 descends, the first continuous casting slab 12 is conveyed to the first horizontal roller way 20 on the transverse moving mechanism; when the first continuous casting blank 12 reaches the first fixed baffle 23, the first horizontal roller table 20 on the transverse moving mechanism automatically stops running, and the first trolley 18 and the first continuous casting blank 12 positioned in the first trolley start to transport blanks remotely; since the level of the withdrawal roll surface of the first slab withdrawal line is 2.2 m higher than the roll surface of the first continuous casting hot-feed line, the first carriage 18 disposed therebetween is transported by way of a downhill billet transport, and a part of the downhill area is shown by the hatched portion in fig. 1.
As shown in fig. 5, at this time, the first trolley 18 runs on the first horizontal roller way 20 and the slope roller way 21, and the slope roller way 21 adopts a large circular arc of R10 meters at the joint with the first horizontal roller way 20, so that the first trolley 18 is prevented from influencing the traveling of the first trolley 18 due to large resistance at the position where the first trolley 18 enters the slope track, and the billet ejection period is prevented from being influenced. The distance between the central line of the first casting flow and the central line of the 1 st hot conveying roller way is farthest about 110 meters, so that in order to ensure smooth cogging rhythm, the transverse moving speed of the first trolley 18 is reasonably matched and designed according to the distance, the maximum speed interval is controlled to be 60m/min to 80m/min, and the speed can meet the cogging period of the first slab cogging line.
As shown in fig. 6, when the first trolley 18 runs through a long-distance knockout run, the position of the first trolley 18 is measured and calculated by the signal tracker 25 arranged on the periphery of the track, and when the first trolley 18 is closer to the first continuous casting hot-feeding line, the speed of the first trolley 18 is gradually reduced until the central line of the roller way of the first trolley 18 is aligned with the central line of the first continuous casting hot-feeding line, the motor of the first trolley 18 is stopped, and the roller way on the first trolley 18 conveys the first continuous casting blank 12 to the first hot-feeding roller way 3 of the first continuous casting hot-feeding line. After the first continuous casting blank 12 completely enters the interior of the first hot conveying roller table 3 of the first continuous casting hot conveying line, the first trolley 18 can automatically return to the blank receiving position at the blank outlet line of the first slab, and the next blank conveying period is started. Meanwhile, the power supply of the first trolley 18 is completed by a power supply device arranged in the tunnel below the first trolley, which is the prior art, and the specific arrangement and the working principle thereof are not described in detail herein.
Further, after the first continuous casting blank 12 enters the first continuous casting hot conveying line, a signal is fed back through the casting blank signal tracker 25, the signal enters the existing electrical system of the device and then the running speed of the first hot conveying roller way 3 of the device can be controlled, when the first continuous casting blank 12 approaches the first lifting roller way 26, the running speed of the first continuous casting blank is reduced to about 10m/min, the first continuous casting blank can be ensured to stably enter each roller of the first lifting roller way 26, after the first continuous casting blank 12 completely enters the first lifting roller way 26, the rollers of the first lifting roller way 26 are completely stopped to run, and the first lifting hydraulic cylinder 28 below the first lifting roller way 26 starts to work. As shown in fig. 7, under hydraulic drive, the first roller bed frame of the first lifting roller bed 26 is lowered on the first lifting slide rail by the first lifting roller 27 below, so as to lower the height of the first roller bed frame by 0.8 m, and ensure that the height of the roller surface of the first continuous casting blank 12 is consistent with the height of the roller surface of the first hot rolling conveying line. It should be noted that when the operation of the rollers of the first lifting roller way 26 stops failing, the blank blocking plate 36 arranged behind the first lifting roller way 26 and crossing the roller path line can effectively prevent the first continuous casting blank 12 from rushing out of the casting line of the first continuous casting hot-feeding line. As shown in fig. 1, when the first continuous casting slab 12 enters the first hot rolling delivery line range and reaches the junction between the rolled steel and the continuous casting, the speed of the first continuous casting slab is slowly reduced until the first continuous casting slab 12 enters the first turntable roller 7, and when the first continuous casting slab 12 touches the fixed baffle at the first turntable roller 7, the roller tables are all stopped, and at this time, the first continuous casting slab 12 can enter the rolling workshop to start the next rolling process.
The hot-conveying and transverse-moving blank-discharging subsystem from the second plate blank-discharging line to the second steel rolling hot-conveying line is described in detail as follows:
the second slab discharging line is close to the second continuous casting hot conveying line, and the height of the discharging roller surface of the second slab discharging line is designed to be consistent with that of the second continuous casting hot conveying line, so that the discharging of the subsystem is simpler than the parts. When the second continuous casting blank 13 produced by the second slab blank discharging line stops on the two blank discharging roller ways, after the second lifting baffle 17 falls down, the second continuous casting blank 13 is conveyed to the second horizontal roller way 22 of the second trolley 19, when the second lifting baffle 17 reaches the second fixed baffle 24, the second horizontal roller way 22 of the second trolley 19 automatically stops, and the second trolley 19 starts to transport blanks in a short distance. The distance between the second slab discharging line and the second continuous casting hot conveying line is only 2.5 meters at the shortest distance, so the blank conveying speed of the second trolley 19 is low, after the central line of the roller way of the second trolley 19 is aligned with the central line of the second continuous casting hot conveying line, the roller way of the second trolley 19 conveys the second continuous casting 13 to the roller way of the second continuous casting hot conveying line, and the blank conveying from the second continuous casting hot conveying line to the second steel rolling hot conveying line is started, and the process is the same as the process of conveying from the first continuous casting hot conveying line to the first steel rolling hot conveying line, and is not repeated.
It should be noted that, as shown in fig. 1, when the first continuous casting hot-conveying line and the second continuous casting hot-conveying line pass through the area of the automobile road below, a hot-conveying roller way steel gap bridge 35 must be arranged below the roller way to ensure the smooth passing of the automobile below. The two continuous casting hot-feeding lines are arranged above a hot-feeding roller way canopy 34 for preventing weather influence such as rainwater, and are matched with corresponding public and auxiliary implementations to ensure smooth blank conveying.
And, as shown in fig. 1, a third trolley is provided on an end of the second horizontal roller table 22, the third trolley is a spare vehicle, and when the second trolley 19 has an operation failure, the third trolley can work instead of the second trolley 19 to convey the second continuous casting slab 13 produced by the second slab discharging line to the second continuous casting hot conveying line. The second cart 19 also has a blank carrying function in place of the first cart 18, and is a switchable blank carrying traverse cart.
Therefore, the device fully and successfully solves the matching design of the continuous casting workshop knockout production line and the steel rolling workshop hot delivery production line, has high operation efficiency and simple and reliable equipment, provides a feasible solution for production enterprises, reduces construction investment and generates higher economic benefit.
In addition, in the embodiment, a slab hot charging and hot delivery method is further provided, and slab transportation is performed by using a slab hot charging and hot delivery system; the method mainly comprises the following steps:
firstly, respectively stopping transporting a first continuous casting blank 12 on a first double-flow slab continuous casting machine 1 and a second continuous casting blank 13 on a second double-flow slab continuous casting machine 2, lowering a first lifting baffle 15 and a second lifting baffle 17, conveying the first continuous casting blank 12 to a first horizontal roller table 20 of a transverse moving mechanism, and conveying the second continuous casting blank 13 to a second horizontal roller table 22 of the transverse moving mechanism; when the first continuous casting blank 12 reaches the first fixed baffle 23 on the first horizontal roller way 20, stopping the operation of the first horizontal roller way 20, and at the moment, positioning the first continuous casting blank 12 on the first horizontal roller way 20 of the first trolley 18; when the second continuous casting blank 13 reaches the second fixed baffle 24 on the second horizontal roller way 22, stopping the operation of the second horizontal roller way 22, and at this time, positioning the second continuous casting blank 13 on the second horizontal roller way 22 of the second trolley 19;
step two, respectively starting a first trolley 18 and a second trolley 19, wherein the first trolley 18 drives a first continuous casting blank 12 to sequentially pass through a first horizontal roller way 20 and a first slope roller way 21, and the second trolley 19 drives a second continuous casting blank 13 to pass through a second horizontal roller way 22;
when the first continuous casting blank 12 reaches a position close to the first hot conveying roller way 3, gradually reducing the transverse moving speed of the first trolley 18 until the roller way center line of the first trolley 18 is aligned with the center line of the first hot conveying roller way 3, stopping the first trolley 18, and conveying the first continuous casting blank 12 onto the first hot conveying roller way 3 through the rotation of the first horizontal roller way 20; when the second continuous casting blank 13 reaches a position close to the second hot roller conveyor 4, gradually reducing the transverse moving speed of the second trolley 19 until the roller way center line of the second trolley 19 is aligned with the center line of the second hot roller conveyor 4, stopping the second trolley 19, and conveying the second continuous casting blank 13 to the second hot roller conveyor 4 through the rotation of the second horizontal roller way 22;
fourthly, when the first casting blank 12 is transported to a position close to a first lifting roller way 26 on a first lifting mechanism 5 on a first hot conveying roller way 3, the running speed of the first hot conveying roller way 3 is reduced to 10m/min, when the first casting blank 12 enters the first lifting roller way 26, the first lifting roller way 26 stops running, the first lifting roller way 26 is integrally reduced by 0.8 meter through a first lifting hydraulic cylinder 28 in the first lifting mechanism 5, so that the height of the first casting blank 12 is the same as the height of the roller surface of a first turntable roller way 7, and then the first casting blank enters the first turntable roller way 7 to start the next rolling process; when the second continuous casting billet 13 is transported to the position close to the second lifting roller way 30 on the second lifting mechanism 6 on the second hot roller way 4, the running speed of the second hot roller way 4 is reduced to 10m/min, after the second continuous casting billet 13 enters the inside of the second lifting roller way 30, the second lifting roller way 30 stops running, the second lifting roller way 30 is integrally reduced by 0.8 m through a second lifting hydraulic cylinder 32 in the second lifting mechanism 6, so that the height of the second continuous casting billet 13 is the same as the roller surface height of the second turntable roller way 8, and then the second continuous casting billet enters the second turntable roller way 8 to start the next rolling process.
In conclusion, the slab hot charging and hot delivery ejection system and the slab hot charging and hot delivery ejection method solve the problem of reasonable matching of the ejection production line of a continuous casting workshop and the hot delivery production line of a steel rolling workshop, can reasonably finish remote transverse hot delivery of four flow slabs produced by two double-flow slab continuous casting machines, can realize successful matching of the ejection roll surface of the continuous casting workshop and the roll surface of a turntable of the steel rolling workshop on the hot delivery line, effectively utilize the newly-built hot delivery ejection system to hot deliver and load the four flow slabs to the corresponding steel rolling production line, and have higher energy-saving, environment-friendly and economic benefits. The new-built second double-flow slab continuous casting machine 2 roller surface elevation and the second hot delivery roller surface elevation are reasonably designed, and on the premise of reducing equipment investment as much as possible, hot delivery of the four-flow continuous casting slab corresponding to two hot delivery production lines is completed. In addition, the advantage that the first double-flow slab continuous casting machine 1 is far away from the first hot roller conveyor 3 is fully utilized, the elevation of the roller surface of the first hot roller conveyor 3 is reduced by 2.2 meters, the required gradient is reduced to be not more than 3 percent, and the stability of the transverse moving and slab conveying of the first trolley 18 on the slope roller conveyor 21 is favorably ensured. In addition, the signal acquisition of the casting blank signal tracker 25 is reasonably utilized and timely fed back to a PLC control system of the casting machine, the operation of a frequency converter of the continuous casting machine is combined, the blank discharging rhythm of the casting blank and the transverse trolley is optimized, and the hot delivery and blank discharging efficiency is greatly improved. Moreover, the process scheme is simple, the equipment type structure is simple, the heat transfer logic is clear, the production interface is friendly, and the operation and control of a user are easy; meanwhile, the construction cost and the later maintenance cost are reduced, and the method has better transportability and extremely high economic value.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A slab hot charging and hot delivery discharging system is characterized by comprising a first double-flow slab continuous casting machine, a second double-flow slab continuous casting machine, a transverse moving mechanism, a first hot delivery roller bed, a second hot delivery roller bed, a first lifting mechanism, a second lifting mechanism, a first turntable roller bed and a second turntable roller bed, wherein the transverse moving mechanism is provided with a first horizontal roller surface, a slope roller surface and a second horizontal roller surface which are sequentially connected; the first double-flow plate blank continuous casting machine and the second double-flow plate blank continuous casting machine are arranged at the positions, close to two ends, outside the same side of the transverse moving mechanism at intervals in parallel, the height of the roller surface of the first double-flow plate blank continuous casting machine is 2.2 meters higher than that of the roller surface of the second double-flow plate blank continuous casting machine, the height of the roller surface of the second double-flow plate blank continuous casting machine is 0.8 meter higher than that of the second turntable roller table, the height of the roller surface of the first turntable roller table is the same as that of the roller surface of the second turntable roller table, the height of the first horizontal roller surface is the same as that of the roller surface of the first double-flow plate blank continuous casting machine, and the height of the second horizontal roller surface is the same as that of the roller surface of the second double-flow plate blank continuous casting machine; the first double-flow slab caster is adjacent to the first horizontal roll surface and used for conveying a produced first continuous casting slab to the first horizontal roll surface, and the first continuous casting slab is conveyed to the first hot roller conveyor through the transverse moving mechanism; the second double-flow-plate blank continuous casting machine is close to the second horizontal roller surface and used for conveying a newly-produced second continuous blank onto the second horizontal roller surface, and the second continuous blank is conveyed onto the second hot roller conveying way through the transverse moving mechanism; the first hot roller conveying table and the second hot roller conveying table are arranged outside the other side of the transverse moving mechanism in parallel at intervals, the first hot roller conveying table is adjacent to one end face, connected with the slope roller face, of the second horizontal roller face, and the second hot roller conveying table is adjacent to the other end face of the second horizontal roller face; the first hot roller conveyor, the first lifting mechanism and the first rotary table roller conveyor are sequentially connected and positioned on the same straight line, and the central axis of the first double-flow slab continuous casting machine is parallel to the central axis of the first hot roller conveyor and is vertical to the central axis of the transverse moving mechanism; the second hot roller conveying table, the second lifting mechanism and the second turntable roller table are sequentially connected and positioned on the same straight line, and the central axis of the second double-flow-plate blank continuous casting machine is parallel to the central axis of the second hot roller conveying table and is vertical to the central axis of the transverse moving mechanism; the first hot conveying roller way is used for sequentially conveying the first continuous casting blanks to the first lifting mechanism and the first rotary table roller way, the first lifting mechanism is used for reducing the height of the roller surface of the first continuous casting blanks, the second hot conveying roller way is used for sequentially conveying the second continuous casting blanks to the second lifting mechanism and the second rotary table roller way, and the second lifting mechanism is used for reducing the height of the roller surface of the first continuous casting blanks.
2. The slab hot charging and hot delivery ejection system according to claim 1, wherein the first double-flow slab caster comprises two sets of first ejection roller tables and a first lifting baffle, the two sets of first ejection roller tables are arranged in parallel at intervals and are rollably connected to a position outside one side of the traversing mechanism and near one end, and the first ejection roller tables are used for transporting the first continuous casting slab to the first horizontal roller table; the first lifting baffle is vertically arranged at a billet outlet of the first billet roller way in a lifting manner.
3. The slab hot-charging hot-delivery ejection system of claim 1, wherein the second two-flow slab caster comprises two sets of second ejection roller tables and a second lifting baffle, the two sets of second ejection roller tables are arranged in parallel and spaced apart, and are rollably connected to a position outside one side of the traversing mechanism and near the other end thereof, for transporting the second continuous slab onto the second horizontal roller table; and the second lifting baffle is vertically arranged at the billet outlet of the second billet discharging roller way in a lifting manner.
4. The slab hot-fill hot-delivery ejection system of claim 1, wherein the traversing mechanism comprises a first trolley, a second trolley, a first horizontal roller bed, a ramp roller bed, a second horizontal roller bed, a first fixed baffle, and a second fixed baffle; the first horizontal roller way, the slope roller way and the second horizontal roller way are connected in sequence and are reduced in height in sequence, the first horizontal roller way is arranged horizontally and is as high as the roller surface of the first double-flow plate blank continuous casting machine, and the upper surface of the first horizontal roller way is the first horizontal roller surface; the slope roller way is arranged in a slope shape, the height of the slope roller way is gradually reduced from the first horizontal roller way to the second horizontal roller way, and the upper surface of the slope roller way is the slope roller surface; the second horizontal roller way is horizontally arranged, the height of the second horizontal roller way is the same as the height of the roller surface of the second double-flow-plate blank continuous casting machine, and the upper surface of the second horizontal roller way is the second horizontal roller surface; the first fixed baffle is fixedly arranged on the other side, away from the first double flow slab continuous casting machine, of the first horizontal roller way, and the second fixed baffle is fixedly arranged on the other side, away from the first double flow slab continuous casting machine, of the second horizontal roller way; the first trolley is movably arranged at the end part of the first horizontal roller way and is used for conveying the first continuous casting blank to the first hot conveying roller way through the slope roller way; the second trolley is movably arranged at the end part of the second horizontal roller way and used for conveying the second continuous casting billet to the second hot roller way.
5. The slab hot fill hot delivery exit system of claim 4, characterized in that a plurality of signal trackers are mounted on opposite sides of the traversing mechanism and at intervals along the length direction for real-time feedback of the positions of the first continuous casting slab, the second continuous casting slab, the first trolley, and the second trolley.
6. A slab hot-fill hot-delivery ejection system as claimed in claim 4, wherein the traverse speed of the first carriage is 60 to 80m/min.
7. Slab hot-fill hot-delivery ejection system according to claim 4, characterized in that the slope of the ramp table is designed to be less than or equal to 3%.
8. The slab hot charge hot delivery ejection system of claim 1, wherein the first lifting mechanism comprises a first lifting roller bed, two sets of first lifting rollers, a first lifting hydraulic cylinder, and two sets of first ramp lifting slide rails; the two groups of first slope lifting slide rails are arranged between the first hot roller conveying way and the first rotary table roller way in parallel at intervals, and the height of the first slope lifting slide rails is gradually reduced from the first hot roller conveying way to the direction of the first rotary table roller way; two ends of the bottom of the first lifting roller way are respectively arranged on the corresponding first slope lifting slide rails in a lifting and moving manner through the first lifting roller; the first lifting hydraulic cylinder is installed between the two groups of first slope lifting slide rails, and the driving end of the first lifting hydraulic cylinder is in transmission connection with the bottom, close to the first hot conveying roller way, of the first lifting roller way and used for driving the first lifting roller way to lift.
9. The slab hot charge hot delivery ejection system of claim 1, wherein the second lifting mechanism comprises a second lifting roller bed, two sets of second lifting rollers, a second lifting hydraulic cylinder, and two sets of second ramp lifting slide rails; the two groups of second slope lifting slide rails are arranged between the second hot roller way and the second turntable roller way in parallel at intervals, and the height of the second slope lifting slide rails is gradually reduced from the second hot roller way to the direction of the second turntable roller way; two ends of the bottom of the second lifting roller way are respectively arranged on the corresponding second slope lifting slide rails in a lifting and moving manner through the second lifting rollers; the second lifting hydraulic cylinder is installed between the two groups of second slope lifting slide rails, and the driving end of the second lifting hydraulic cylinder is in transmission connection with the bottom, close to the second hot conveying roller way, of the second lifting roller way and used for driving the second lifting roller way to lift.
10. A slab hot charging and hot delivery method, characterized in that slab transportation is performed by using the slab hot charging and hot delivery system as claimed in any one of claims 1 to 9; the method comprises the following steps:
respectively stopping transporting the first continuous casting blank on the first double-flow slab continuous casting machine and the second continuous casting blank on the second double-flow slab continuous casting machine, lowering a first lifting baffle and a second lifting baffle, conveying the first continuous casting blank to a first horizontal roller way of the transverse moving mechanism, and conveying the second continuous casting blank to a second horizontal roller way of the transverse moving mechanism; when the first continuous casting blank reaches a first fixed baffle on the first horizontal roller way, stopping the operation of the first horizontal roller way; when the second continuous casting billet reaches a second fixed baffle on the second horizontal roller way, stopping the operation of the second horizontal roller way;
respectively starting a first trolley and a second trolley, wherein the first trolley drives the first continuous casting blank to sequentially pass through the first horizontal roller way and the first slope roller way, and the second trolley drives the second continuous casting blank to pass through the second horizontal roller way;
when the first continuous casting blank reaches a position close to the first hot conveying roller way, gradually reducing the transverse moving speed of the first trolley until the roller way center line of the first trolley is aligned with the center line of the first hot conveying roller way, stopping the first trolley, and conveying the first continuous casting blank to the first hot conveying roller way through the rotation of the first horizontal roller way; when the second continuous casting billet reaches a position close to the second hot roller conveyor, gradually reducing the transverse moving speed of the second trolley until the central line of the roller way of the second trolley is aligned with the central line of the second hot roller conveyor, stopping the second trolley, and conveying the second continuous casting billet to the second hot roller conveyor through the rotation of the second horizontal roller conveyor;
step four, when the first casting blank is transported to a position close to a first lifting roller way on the first lifting mechanism on the first hot roller way, the running speed of the first hot roller way is reduced to 10m/min, when the first casting blank enters the first lifting roller way, the running of the first lifting roller way is stopped, the first lifting roller way is integrally reduced by 0.8 meter through a first lifting hydraulic cylinder in the first lifting mechanism, so that the height of the first casting blank is the same as the height of the roller surface of the first turntable roller way, and then the first casting blank enters the first turntable roller way to start the next rolling process; when the second continuous casting billet is transported to a position close to a second lifting roller way on a second lifting mechanism on the second hot roller way, the running speed of the second hot roller way is reduced to 10m/min, when the second continuous casting billet enters the inside of the second lifting roller way, the second lifting roller way stops running, and the second lifting roller way is wholly reduced by 0.8 m through a second lifting hydraulic cylinder in the second lifting mechanism, so that the second continuous casting billet is as high as the roller surface of the second turntable roller way and then enters the second turntable roller way to start the next rolling process.
CN202211455039.3A 2022-11-21 2022-11-21 Slab hot charging and hot delivery blank discharging system and slab hot charging and hot delivery blank discharging method Pending CN115740380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211455039.3A CN115740380A (en) 2022-11-21 2022-11-21 Slab hot charging and hot delivery blank discharging system and slab hot charging and hot delivery blank discharging method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116748481A (en) * 2023-06-21 2023-09-15 中国重型机械研究院股份公司 Slab continuous casting knockout zone swing roller way with lifting function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116748481A (en) * 2023-06-21 2023-09-15 中国重型机械研究院股份公司 Slab continuous casting knockout zone swing roller way with lifting function
CN116748481B (en) * 2023-06-21 2024-04-16 中国重型机械研究院股份公司 Slab continuous casting knockout zone swing roller way with lifting function

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