A slab hot charging and hot sending out slab system and a slab hot charging and hot sending out slab method

Abstract

The application provides a slab hot charging and hot sending system and a slab hot charging and hot sending method, a first double-flow slab continuous casting machine and a second double-flow slab continuous casting machine are arranged on the same side of a transverse moving mechanism, a first trolley is used for transporting the first continuous casting slab to a first hot sending roller way through a first horizontal roller surface and an inclined roller surface, a second trolley is used for transporting the second continuous casting slab to a second hot sending roller way through a second horizontal roller surface, the first hot sending roller way and the second hot sending roller way are arranged on the other side of the transverse moving mechanism, the first hot sending roller way is adjacent to one end surface of the second horizontal roller surface connected with the inclined roller surface, and the second hot sending roller way is adjacent to the other end surface of the second horizontal roller surface, the first hot sending roller way is used for sequentially transporting the first continuous casting slab to a first lifting mechanism and a first rotary disc roller way, and the second hot sending roller way is used for sequentially transporting the second continuous casting slab to a second lifting mechanism and a second rotary disc roller way. The device and the method are low in cost and high in operation efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of metallurgical continuous casting, in particular to a slab hot charging and hot delivery system and a slab hot charging and hot delivery method. BACKGROUND

[0002] With the continuous development of the steel industry, the steel manufacturing enterprises also improve the steelmaking level day by day. In order to ensure the energy conservation and environmental protection and sustainable development in the metallurgical process, the metallurgical industry must actively explore green manufacturing and continuously optimize the steel manufacturing process. As known, the continuous casting machine is an important part of the metallurgical steelmaking equipment. The slab produced by the continuous casting machine is hoisted and stacked after being off-line, and then transported to the steel rolling workshop, which consumes a large amount of manufacturing time and energy. In order to achieve energy saving and consumption reduction, green and low carbon, the qualified fixed-size slab produced by the continuous casting machine must be timely hot delivered and hot charged.

[0003] The hot delivery and hot charging of the slab not only needs to comprehensively consider the production process, site turnover, equipment layout, etc. of the steelmaking continuous casting workshop and the steel rolling workshop, but also needs to match the capacity of one or two double-flow slab continuous casting machines with one hot rolling production line, so as to successfully and effectively reduce the production cost per ton of steel, increase the production efficiency and bring huge economic benefits to the enterprise.

[0004] The slab delivery system of the slab continuous casting machine generally consists of a delivery roller, a transverse trolley, an off-line roller and a hot delivery roller. In general, the delivery roller transports the cast slab to the delivery span; the transverse trolley is arranged in the delivery span, and its running direction is perpendicular to the delivery direction of the cast slab; the hot delivery roller and the off-line roller are arranged in the slab yard span, the hot delivery roller hot delivers the cast slab to the steel rolling workshop, and the off-line roller can hoist and off-line stack the cast slab. If the process flow is not perfectly matched, it will lead to untimely off-line of the cast slab, causing congestion of the cast slab, and even causing the continuous casting machine to stop casting, which will affect the normal production of the steel enterprise.

[0005] In the planning process of the continuous casting slab hot delivery and hot charging production line, two double-flow slab continuous casting machines are involved, which are four casting flow delivery production lines in total, and two hot delivery production lines connected with the steel rolling rotary table roller. Because the center line distance of the existing two double-flow slab continuous casting machines is far apart, the farthest distance can reach about 110 meters. If the transverse trolley cannot run fast enough and the parking precision is not accurate enough, it will greatly restrict the production efficiency of the slab hot delivery and hot charging. Because one of the two double-flow slab continuous casting machines has been put into production, the delivery roller surface elevation has been fixed, the equipment relationship in the steel rolling workshop has been formed, and the rotary table roller surface elevation has also been fixed, with a height difference of 3 meters. Therefore, when planning the delivery roller surface of the other continuous casting machine and arranging the hot delivery and hot charging equipment, calculations and comparisons need to be made at various levels, otherwise the continuous casting slab cannot be normally hot delivered to the steel rolling workshop for heating and rolling. SUMMARY

[0006] One of the purposes of the present application is to provide a slab hot charging and hot sending slab system and a slab hot charging and hot sending slab method to solve the problem of low transportation efficiency of existing continuous casting slab hot sending and hot charging.

[0007] The technical solution of the present application is:

[0008] The slab hot charging and hot conveying system comprises a first double-flow slab caster, a second double-flow slab caster, a transverse moving mechanism, a first hot conveying roller, a second hot conveying roller, a first lifting mechanism, a second lifting mechanism, a first rotary disc roller and a second rotary disc roller, the transverse moving mechanism has a first horizontal roller surface, a slope roller surface and a second horizontal roller surface connected in sequence; the first double-flow slab caster and the second double-flow slab caster are arranged in parallel and at intervals at positions close to both ends of the same side of the transverse moving mechanism, the roller surface height of the first double-flow slab caster is 2.2 meters higher than that of the second double-flow slab caster, the roller surface height of the second double-flow slab caster is 0.8 meters higher than that of the second rotary disc roller, the roller surface height of the first rotary disc roller is the same as that of the second rotary disc roller, the height of the first horizontal roller surface is the same as the roller surface height of the first double-flow slab caster, and the height of the second horizontal roller surface is the same as the roller surface height of the second double-flow slab caster; the first double-flow slab caster is adjacent to the first horizontal roller surface and is used for transporting the produced first continuous casting slab to the first horizontal roller surface, and the first continuous casting slab is transported to the first hot conveying roller through the transverse moving mechanism; the second double-flow slab caster is adjacent to the second horizontal roller surface and is used for transporting the newly produced second continuous casting slab to the second horizontal roller surface, and the second continuous casting slab is transported to the second hot conveying roller through the transverse moving mechanism; the first hot conveying roller and the second hot conveying roller are arranged in parallel and at intervals on the other side of the transverse moving mechanism, the first hot conveying roller is adjacent to one end surface of the second horizontal roller surface connected with the slope roller surface, and the second hot conveying roller is adjacent to the other end surface of the second horizontal roller surface; the first hot conveying roller, the first lifting mechanism and the first rotary disc roller are connected in sequence and are in the same straight line, the center axis of the first double-flow slab caster is parallel to the center axis of the first hot conveying roller and perpendicular to the center axis of the transverse moving mechanism; the second hot conveying roller, the second lifting mechanism and the second rotary disc roller are connected in sequence and are in the same straight line, the center axis of the second double-flow slab caster is parallel to the center axis of the second hot conveying roller and perpendicular to the center axis of the transverse moving mechanism; the first hot conveying roller is used for transporting the first continuous casting slab to the first lifting mechanism and the first rotary disc roller in sequence, the first lifting mechanism is used for lowering the roller surface height of the first continuous casting slab, the second hot conveying roller is used for transporting the second continuous casting slab to the second lifting mechanism and the second rotary disc roller in sequence, and the second lifting mechanism is used for lowering the roller surface height of the first continuous casting slab.

[0009] As a technical scheme of the present application, the first double-flow slab continuous casting machine comprises two groups of first slab discharge roller tables and first lifting baffles, the two groups of first slab discharge roller tables are arranged in parallel and at intervals, and are rollably connected to one side of the transverse moving mechanism and are located close to one end, and are used for transporting the first continuous casting slab to the first horizontal roller table; the first lifting baffles are vertically installed at the slab discharge opening of the first slab discharge roller table.

[0010] As a technical scheme of the present application, the second double-flow slab continuous casting machine comprises two groups of second slab discharge roller tables and second lifting baffles, the two groups of second slab discharge roller tables are arranged in parallel and at intervals, and are rollably connected to one side of the transverse moving mechanism and are located close to the other end, and are used for transporting the second continuous casting slab to the second horizontal roller table; the second lifting baffles are vertically installed at the slab discharge opening of the second slab discharge roller table.

[0011] As a technical scheme of the present application, the transverse moving mechanism comprises a first trolley, a second trolley, a first horizontal roller table, an inclined roller table, a second horizontal roller table, a first fixed baffle and a second fixed baffle; the first horizontal roller table, the inclined roller table and the second horizontal roller table are connected in sequence and have heights decreasing in sequence, the first horizontal roller table is arranged in a horizontal shape, and has a height same as the roller surface height of the first double-flow slab continuous casting machine, the upper surface of the first horizontal roller table is the first horizontal roller surface; the inclined roller table is arranged in a slope shape, and has a height gradually decreasing from the first horizontal roller table to the second horizontal roller table, the upper surface of the inclined roller table is the inclined roller surface; the second horizontal roller table is arranged in a horizontal shape, and has a height same as the roller surface height of the second double-flow slab continuous casting machine, the upper surface of the second horizontal roller table is the second horizontal roller surface; the first fixed baffle is fixedly installed on the other side of the first horizontal roller table away from the first double-flow slab continuous casting machine, and the second fixed baffle is fixedly installed on the other side of the second horizontal roller table away from the first double-flow slab continuous casting machine; the first trolley is movably arranged on the end of the first horizontal roller table, and is used for conveying the first continuous casting slab to the first hot charging roller table through the inclined roller table; the second trolley is movably arranged on the end of the second horizontal roller table, and is used for conveying the second continuous casting slab to the second hot charging roller table.

[0012] As a technical scheme of the present application, the opposite two sides of the transverse moving mechanism are both spacedly installed with signal trackers in the length direction, and are used 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.

[0013] As a technical scheme of the present application, the transverse moving speed of the first trolley is 60 m / min-80 m / min.

[0014] As a technical solution of the present application, the slope of the slope roller is designed to be less than or equal to 3%.

[0015] As a technical solution of the present application, the first lifting mechanism comprises a first lifting roller, two groups of first lifting rollers, a first lifting hydraulic cylinder and two groups of first inclined lifting slide rails; the two groups of first inclined lifting slide rails are arranged in parallel and spaced between the first hot charging roller and the first rotary disc roller, and the height of the first inclined lifting slide rail gradually decreases from the first hot charging roller to the first rotary disc roller; the bottom ends of the first lifting roller are respectively installed on the corresponding first inclined lifting slide rails through the first lifting rollers in a lifting and movable manner; the first lifting hydraulic cylinder is installed between the two groups of first inclined lifting slide rails, and the driving end is drivingly connected to the bottom of the first lifting roller close to the first hot charging roller, for driving the first lifting roller to lift.

[0016] As a technical solution of the present application, the second lifting mechanism comprises a second lifting roller, two groups of second lifting rollers, a second lifting hydraulic cylinder and two groups of second inclined lifting slide rails; the two groups of second inclined lifting slide rails are arranged in parallel and spaced between the second hot charging roller and the second rotary disc roller, and the height of the second inclined lifting slide rail gradually decreases from the second hot charging roller to the second rotary disc roller; the bottom ends of the second lifting roller are respectively installed on the corresponding second inclined lifting slide rails through the second lifting rollers in a lifting and movable manner; the second lifting hydraulic cylinder is installed between the two groups of second inclined lifting slide rails, and the driving end is drivingly connected to the bottom of the second lifting roller close to the second hot charging roller, for driving the second lifting roller to lift.

[0017] A slab hot charging and hot feeding method, which adopts the slab hot charging and hot feeding system described above to transport the slab; comprising the following steps:

[0018] Step one, respectively stop the first continuous casting billet on the first double-flow slab continuous casting machine from transporting, stop the second continuous casting billet on the second double-flow slab continuous casting machine from transporting, lower the first lifting baffle and the second lifting baffle, and transport the first continuous casting billet to the first horizontal roller of the transverse moving mechanism and transport the second continuous casting billet to the second horizontal roller of the transverse moving mechanism; when the first continuous casting billet reaches the first fixed baffle on the first horizontal roller, stop the operation of the first horizontal roller; when the second continuous casting billet reaches the second fixed baffle on the second horizontal roller, stop the operation of the second horizontal roller;

[0019] Step two, respectively start the first trolley and the second trolley, the first trolley drives the first continuous casting billet to pass through the first horizontal roller way and the first slope roller way in turn, and the second trolley drives the second continuous casting billet to pass through the second horizontal roller way;

[0020] Step three, when the first continuous casting billet reaches the position close to the first hot charging roller way, the transverse moving speed of the first trolley is gradually reduced until the roller center line of the first trolley is aligned with the center line of the first hot charging roller way, then the first trolley is stopped, and the first continuous casting billet is transported to the first hot charging roller way through the rotation of the first horizontal roller way; when the second continuous casting billet reaches the position close to the second hot charging roller way, the transverse moving speed of the second trolley is gradually reduced until the roller center line of the second trolley is aligned with the center line of the second hot charging roller way, then the second trolley is stopped, and the second continuous casting billet is transported to the second hot charging roller way through the rotation of the second horizontal roller way;

[0021] Step four, when the first continuous casting billet is transported on the first hot charging roller way to the position close to the first lifting roller way on the first lifting mechanism, the running speed of the first hot charging roller way is reduced to 10 m / min, when the first continuous casting billet enters the inside of the first lifting roller way, the running of the first lifting roller way is stopped, and the first lifting roller way is lowered by 0.8 meters as a whole through the first lifting hydraulic cylinder in the first lifting mechanism, so that the height of the first continuous casting billet is the same as the roller surface height of the first rotary roller way, and then the first continuous casting billet enters the first rotary roller way to start the next rolling process; when the second continuous casting billet is transported on the second hot charging roller way to the position close to the second lifting roller way on the second lifting mechanism, the running speed of the second hot charging roller way is reduced to 10 m / min, when the second continuous casting billet enters the inside of the second lifting roller way, the running of the second lifting roller way is stopped, and the second lifting roller way is lowered by 0.8 meters as a whole through the second lifting hydraulic cylinder in the second lifting mechanism, so that the height of the second continuous casting billet is the same as the roller surface height of the second rotary roller way, and then the second continuous casting billet enters the second rotary roller way to start the next rolling process.

[0022] The slab hot charging and hot sending system and the slab hot charging and hot sending method provided by the application solve the problem of reasonable matching of the slab sending production line of the continuous casting workshop and the hot sending production line of the rolling workshop, the system can reasonably complete the long-distance transverse movement and hot sending of four flow slabs produced by two double-flow slab continuous casting machines, and can realize the successful matching of the slab sending roll surface of the continuous casting workshop and the roll surface of the rotating disc of the rolling workshop on the hot sending line, effectively utilizes the newly built hot sending slab sending system to hot send and hot charge four flow cast slabs to the corresponding rolling production line, and has high energy saving and environmental protection and economic benefits. The second double-flow slab continuous casting machine roll surface elevation and the second hot sending roll surface elevation are reasonably designed, the corresponding two hot sending production lines of four flow continuous casting slabs are completed under the premise of minimizing equipment investment, and the advantages of the first double-flow slab continuous casting machine being far away from the first hot sending roll are fully utilized, the roll surface of the first hot sending roll is lowered by 2.2 meters relative to the first horizontal roll surface, and the required slope is reduced to not more than 3%, which is beneficial to the stability of the first trolley in transverse movement of the slab on the slope roll. In addition, the signal acquisition of the slab signal tracker is reasonably used, and timely feedback is given to the PLC control system of the casting machine combined with the frequency converter operation of the continuous casting machine, the slab and transverse movement trolley are optimized, and the hot sending efficiency is greatly improved. Furthermore, the process scheme is simple, the equipment type structure is simple, the hot sending logic is clear, the production interface is friendly, and the user is easy to operate and control; at the same time, the construction cost and the later maintenance cost are reduced, and the application has good portability and high economic value. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope, and other related drawings can also be obtained by those skilled in the art without creative labor.

[0024] Figure 1 A slab hot charging and hot sending system schematic diagram provided for the embodiments of the application;

[0025] Figure 2 A first double-flow slab continuous casting machine schematic diagram provided for the embodiments of the application;

[0026] Figure 3 A second double-flow slab continuous casting machine schematic diagram provided for the embodiments of the application;

[0027] Figure 4 A transverse movement mechanism schematic diagram provided for the embodiments of the application;

[0028] Figure 5 A first trolley transportation schematic diagram provided for the embodiments of the application;

[0029] Figure 6 A first trolley diagram provided for the embodiment of the present application;

[0030] Figure 7 A first lifting mechanism lifting process diagram provided for the embodiment of the present application;

[0031] Figure 8 A second lifting mechanism lifting process diagram provided for the embodiment of the present application.

[0032] Figure: 1 - first double-strand slab caster; 2 - second double-strand slab caster; 3 - first hot delivery roller way; 4 - second hot delivery roller way; 5 - first lifting mechanism; 6 - second lifting mechanism; 7 - first rotary disc roller way; 8 - second rotary disc roller way; 9 - first horizontal roller surface; 10 - inclined roller surface; 11 - second horizontal roller surface; 12 - first continuous casting slab; 13 - second continuous casting slab; 14 - first slab delivery roller way; 15 - first lifting baffle; 16 - second slab delivery roller way; 17 - second lifting baffle; 18 - first trolley; 19 - second trolley; 20 - first horizontal roller way; 21 - inclined roller way; 22 - second horizontal roller way; 23 - first fixed baffle; 24 - second fixed baffle; 25 - signal tracker; 26 - first lifting roller way; 27 - first lifting roller; 28 - first lifting hydraulic cylinder; 29 - first inclined lifting slide rail; 30 - second lifting roller way; 31 - second lifting roller; 32 - second lifting hydraulic cylinder; 33 - second inclined lifting slide rail; 34 - canopy; 35 - steel bridge; 36 - slab blocking plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0035] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0036] In the description of the application, it needs to be explained that the terms "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the application is usually placed, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0037] In addition, in this application, unless otherwise explicitly specified and limited, the first feature above or below the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0039] In the description of the application, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "provided", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0040] Embodiment:

[0041] Please refer to Figure 1 , please refer to Figures 2 to 8The application provides a slab hot charging and hot feeding system, which can reasonably complete long-distance transverse movement and hot feeding of four slab casting flows produced by two double-flow slab continuous casting machines, and can realize successful matching of the slab feeding roll surface of the continuous casting workshop and the roll surface of the rolling workshop on the hot feeding line, so that the four casting flow slabs are effectively hot fed and hot charged to the corresponding rolling production line by using the newly built hot feeding and hot charging system, and have higher energy saving and environmental protection and economic benefits.It mainly includes first double-flow slab caster 1, second double-flow slab caster 2, transverse moving mechanism, first hot delivery roller 3, second hot delivery roller 4, first lifting mechanism 5, second lifting mechanism 6, first rotary disc roller 7 and second rotary disc roller 8, the transverse moving mechanism has first horizontal roller surface 9, slope roller surface 10 and second horizontal roller surface 11 connected in sequence; wherein, the first double-flow slab caster 1 and the second double-flow slab caster 2 are arranged in parallel and spaced apart at the same side of the transverse moving mechanism close to both ends, and the roller surface height of the first double-flow slab caster 1 is 2.2 meters higher than that of the second double-flow slab caster 2, the roller surface height of the second double-flow slab caster 2 is 0.8 meters higher than that of the second rotary disc roller 8, the roller surface height of the first rotary disc roller 7 is the same as that of the second rotary disc roller 8, the height of the first horizontal roller surface 9 is the same as the roller surface height of the first double-flow slab caster 1, and the height of the second horizontal roller surface 11 is the same as the roller surface height of the second double-flow slab caster 2; at the same time, the first double-flow slab caster 1 is adjacent to the first horizontal roller surface 9 and is used for transporting the first continuously cast slab 12 produced to the first horizontal roller surface 9, and the first continuously cast slab 12 is transported to the first hot delivery roller 3 through the transverse moving mechanism; the second double-flow slab caster 2 is adjacent to the second horizontal roller surface 11 and is used for transporting the second continuously cast slab 13 newly produced to the second horizontal roller surface 11, and the second continuously cast slab 13 is transported to the second hot delivery roller 4 through the transverse moving mechanism; and, the first hot delivery roller 3 and the second hot delivery roller 4 are arranged in parallel and spaced apart at the other side of the transverse moving mechanism, and the first hot delivery roller 3 is adjacent to one end surface of the second horizontal roller surface 11 connected with the slope roller surface 10, and the second hot delivery roller 4 is adjacent to the other end surface of the second horizontal roller surface 11; the first hot delivery roller 3, the first lifting mechanism 5 and the first rotary disc roller 7 are connected in sequence and are in the same straight line, the center axis of the first double-flow slab caster 1 is parallel to the center axis of the first hot delivery roller 3, and is perpendicular to the center axis of the transverse moving mechanism; the second hot delivery roller 4, the second lifting mechanism 6 and the second rotary disc roller 8 are connected in sequence and are in the same straight line, the center axis of the second double-flow slab caster 2 is parallel to the center axis of the second hot delivery roller 4, and is perpendicular to the center axis of the transverse moving mechanism; the first hot delivery roller 3 is used for transporting the first continuously cast slab 12 to the first lifting mechanism 5 and the first rotary disc roller 7 in sequence, the first lifting mechanism 5 is used for lowering the roller surface height of the first continuously cast slab 12, the second hot delivery roller 4 is used for transporting the second continuously cast slab 13 to the second lifting mechanism 6 and the second rotary disc roller 8 in sequence, and the second lifting mechanism 6 is used for lowering the roller surface height of the first continuously cast slab 12.

[0042] Further, the first double-flow slab caster 1 comprises two groups of first slab discharge roller tables 14 and first lifting baffle plates 15; wherein the two groups of first slab discharge roller tables 14 are arranged in parallel and at intervals, and are rollably connected to one side of the transverse moving mechanism and located close to one end, for transporting the first continuous casting slab 12 to the first horizontal roller table 20; at the same time, the first lifting baffle plate 15 is vertically installed at the slab discharge port of the first slab discharge roller table 14 in a lifting manner. And the second double-flow slab caster 2 comprises two groups of second slab discharge roller tables 16 and second lifting baffle plates 17; wherein the two groups of second slab discharge roller tables 16 are arranged in parallel and at intervals, and are rollably connected to one side of the transverse moving mechanism and located close to the other end, for transporting the second continuous casting slab 13 to the second horizontal roller table 22; in addition, the second lifting baffle plate 17 is vertically installed at the slab discharge port of the second slab discharge roller table 16 in a lifting manner.

[0043] And the transverse moving mechanism comprises a first trolley 18, a second trolley 19, a first horizontal roller table 20, an inclined roller table 21, a second horizontal roller table 22, a first fixed baffle plate 23 and a second fixed baffle plate 24; wherein the first horizontal roller table 20, the inclined roller table 21 and the second horizontal roller table 22 are connected in sequence and the heights are lowered in sequence, the first horizontal roller table 20 is arranged in a horizontal shape, and the roller surface height thereof is the same as that of the first double-flow slab caster 1, the upper surface of the first horizontal roller table 20 is the first horizontal roller surface 9; at the same time, the inclined roller table 21 is arranged in a slope shape, and the height gradually decreases from the first horizontal roller table 20 to the second horizontal roller table 22, the upper surface of the inclined roller table 21 is the inclined roller surface 10; and the second horizontal roller table 22 is arranged in a horizontal shape, and the roller surface height thereof is the same as that of the second double-flow slab caster 2, the upper surface of the second horizontal roller table 22 is the second horizontal roller surface 11; the first fixed baffle plate 23 is fixedly installed on the other side of the first horizontal roller table 20 away from the first double-flow slab caster 1, and the second fixed baffle plate 24 is fixedly installed on the other side of the second horizontal roller table 22 away from the first double-flow slab caster 1; the first trolley 18 is movably arranged on the end of the first horizontal roller table 20, for transporting the first continuous casting slab 12 to the first hot charging roller table 3 through the inclined roller table 21, and the first trolley 18 is driven to operate by the motor and the speed reducer thereon; the second trolley 19 is movably arranged on the end of the second horizontal roller table 22, for transporting the second continuous casting slab 13 to the second hot charging roller table 4, and the second trolley 19 is driven to operate by the motor and the speed reducer thereon. Therefore, the first trolley 18 receives the slab from the first double-flow slab caster 1 on the center line of the 1 double-flow slab caster which has been put into operation, and transports the slab to the first hot charging roller table 3 on the center line of the first hot charging roller table, and the transverse moving mechanism adopts the inclined roller table 21 transverse moving mode for transportation.

[0044] It should be noted that for the 4-flow slab casting, in order to ensure the continuity of the continuous casting machine production operation, two or three transverse moving trolleys need to be arranged on the transverse moving mechanism.

[0045] Meanwhile, a plurality of signal trackers 25 are installed at intervals along the length direction on opposite sides of the first horizontal roller 20, the slope roller 21 and the second horizontal roller 22, and the signal trackers 25 are used to feed back the positions of the first continuously cast billet 12, the second continuously cast billet 13, the first trolley 18 and the second trolley 19 in real time. According to the signal trackers 25 of the continuously cast billets at various positions in the hot charging and transverse moving system, the running transverse movement of the first continuously cast billet 12 and the second continuously cast billet 13 and the position of the running billet are tracked, the existing continuously cast machine frequency converter and PLC system are used to calculate and control the billet running speed and the equipment action state, so as to ensure the matching of the 4-flow billet running and the rolling speed and facilitate the program control of the billet rhythm. The continuously cast machine frequency converter and the PLC system can adopt the structure in the existing technology, and the specific structure and working principle are not described here.

[0046] Moreover, for the first double-flow slab continuous casting machine 1 that has been put into production, the distance between the center line of the first casting flow and the center line of the first hot charging roller is the farthest, about 110 meters, therefore, in order to ensure the smooth billet running rhythm, the transverse moving speed interval of the first trolley 18 is set to 60 m / min~80 m / min.

[0047] It should be noted that, because the roll surface of the first double-flow slab continuous casting machine 1 that has been put into production cannot be changed, the relative roll surface positioning is ±0 meters, for the second double-flow slab continuous casting machine 2 that is newly built, the roll surface of the second double-flow slab continuous casting machine 2 is designed to be 2.2 meters lower than the roll surface of the first double-flow slab continuous casting machine 1 that has been put into production, that is, the relative roll surface of the newly built second double-flow slab continuous casting machine 2 is -2.2 meters; at the same time, the roll surface of the newly built second double-flow slab continuous casting machine 2 is 0.8 meters higher than the roll surface of the rolling billet, that is, the relative roll surface of the rolling billet is -3.0 meters; that is, in this way, the relative height difference of 3 meters between the roll surface of the rolling billet and the roll surface of the first double-flow slab continuous casting machine 1 that has been put into production can be met. Moreover, the slab produced by the first double-flow slab continuous casting machine 1 is transversely moved on the slope roller 21 by the first trolley 18, and the slope of the slope roller 21 is designed to be not more than 3%; the first lifting roller 26 on the first hot charging line can lower the roll surface of the first continuously cast billet 12 by 0.8 meters by using the first lifting hydraulic cylinder 28, and the second lifting roller 30 on the second hot charging line can lower the roll surface of the second continuously cast billet 13 by 0.8 meters by using the second lifting hydraulic cylinder 32.

[0048] Further, the first hot charging roller 3 and the second hot charging roller 4 are arranged on the corresponding two hot charging center lines respectively, and are used for conveying the slab. The first lifting mechanism 5 and the second lifting mechanism 6 are arranged on the corresponding hot charging center lines respectively, and are used for lowering the roll surface height of the slab. Since the two hot charging slab lines cross the road below, in the embodiment, two sets of hot charging public auxiliary facilities are designed to be installed directly below the corresponding first hot charging roller 3 and the second hot charging roller 4, which include the civil engineering, steel structure and other public auxiliary equipment in the prior art. The first lifting mechanism 5 includes a first lifting roller 26, two groups of first lifting rollers 27, a first lifting hydraulic cylinder 28 and two groups of first inclined lifting slide rails 29. The two groups of first inclined lifting slide rails 29 are arranged in parallel and at intervals between the first hot charging roller 3 and the first rotary disc roller 7, and the height of the first inclined lifting slide rail 29 gradually decreases from the first hot charging roller 3 to the first rotary disc roller 7. The bottom ends of the first lifting roller 26 are movably installed on the corresponding first inclined lifting slide rails 29 through the first lifting rollers 27. The first lifting hydraulic cylinder 28 is installed between the two groups of first inclined lifting slide rails 29, and the driving end is drivingly connected to the bottom of the first lifting roller 26 close to the first hot charging roller 3, so as to drive the first lifting roller 26 to lift.

[0049] Meanwhile, the second lifting mechanism 6 includes a second lifting roller 30, two groups of second lifting rollers 31, a second lifting hydraulic cylinder 32 and two groups of second inclined lifting slide rails 33. The two groups of second inclined lifting slide rails 33 are arranged in parallel and at intervals between the second hot charging roller 4 and the second rotary disc roller 8, and the height of the second inclined lifting slide rail 33 gradually decreases from the second hot charging roller 4 to the second rotary disc roller 8. The bottom ends of the second lifting roller 30 are movably installed on the corresponding second inclined lifting slide rails 33 through the second lifting rollers 31. The second lifting hydraulic cylinder 32 is installed between the two groups of second inclined lifting slide rails 33, and the driving end is drivingly connected to the bottom of the second lifting roller 30 close to the second hot charging roller 4, so as to drive the second lifting roller 30 to lift.

[0050] Therefore, the distance of the hot charging line from the end of the continuous casting workshop to the rolling slab receiving end is about 90 meters, so that the first continuous casting slab 12 and the second continuous casting slab 13 can be lowered in height by the first lifting mechanism 5 and the second lifting mechanism 6 respectively during the hot charging process, and then the butt joint of the two roll surfaces is completed.

[0051] It needs to be explained that the system utilizes the first strand of the first double-strand slab caster 1, the second strand of the second double-strand slab caster 2, the first strand of the first slab line 3, the second strand of the second slab line 4, the first strand of the first hot charging line 5, the second strand of the second hot charging line 6, the first strand of the first slab line 10, the second strand of the second slab line 11, the first strand of the first continuous casting 12, the second strand of the second continuous casting 13, the first strand of the first slab line 14, the second strand of the second slab line 16, the first strand of the first lifting baffle 15, and the second strand of the second lifting baffle 17, and under the cooperation of the signal tracker 25, the cast slabs produced by each strand are transported to the corresponding first horizontal roller 20 and the second horizontal roller 22, and the cast slabs automatically stop running after reaching the first fixed baffle 23 and the second fixed baffle 24. Based on the distance between the center line of each strand and the hot charging center line, the transverse movement speed of the first trolley 18 and the second trolley 19 is reasonably set, and the slab is transversely moved to the corresponding hot charging line to complete the transverse movement of the slab. The cast slabs on the first trolley 18 and the second trolley 19 are transported to the corresponding hot charging roller line by using the first horizontal roller 20, the slope roller 21, and the second horizontal roller 22, and under the guidance of the cast slab signal tracker 25, the cast slabs are transported to the first rotary roller 7 and the second rotary roller 8 for rolling, thereby completing the entire slab movement process.

[0052] First, the hot charging transverse movement of the slab movement system from the first slab line to the rolling hot charging line is described in detail:

[0053] Since the distance between the first slab line and the first continuous casting hot charging line is far, the first continuous casting slab 12 produced by the first slab line stops moving on the two first slab roller 14, and after the first lifting baffle 15 is lowered, the first continuous casting slab 12 is transported to the first horizontal roller 20 on the transverse movement mechanism; when the first continuous casting slab 12 reaches the first fixed baffle 23, the first horizontal roller 20 on the transverse movement mechanism operates and automatically stops, and the first trolley 18 and the first continuous casting slab 12 inside it begin to move the slab at a long distance; since the slab roller surface elevation of the first slab line is 2.2 meters higher than that of the first continuous casting hot charging line, the first trolley 18 arranged between the two uses the downhill movement mode for transportation, and part of the downhill area is shown in the shadow part of Figure 1 .

[0054] As shown in Figure 5 , at this time, the first trolley 18 runs on the first horizontal roller 20 and the slope roller 21, and the slope roller 21 adopts a large circular arc with an R10 meter at the joint with the first horizontal roller 20 to avoid affecting the walking of the first trolley 18 due to large resistance when the first trolley 18 enters the slope track, and to avoid affecting the slab movement period. The distance between the first strand center line and the first hot charging roller center line is about 110 meters, so in order to ensure smooth slab movement rhythm, the transverse movement speed of the first trolley 18 is reasonably matched according to the distance, and the maximum speed interval is controlled between 60 m / min and 80 m / min, which can meet the slab movement period of the first slab line.

[0055] As shown in Figure 6As shown, when the first trolley 18 is running at a long distance from the first continuous casting strand, its position is measured by the signal tracker 25 arranged around the track. When the first trolley 18 is close to the first continuous casting strand, its speed is gradually reduced until the center line of the roller way of the first trolley 18 is aligned with the center line of the first continuous casting strand, the motor of the first trolley 18 stops, and the roller way on the first trolley 18 delivers the first continuous casting strand 12 to the first hot conveying roller way 3 of the first continuous casting strand. After the first continuous casting strand 12 completely enters the first hot conveying roller way 3 of the first continuous casting strand, the first trolley 18 can automatically return to the joining position at the first slab strand delivery line to start the next strand conveying cycle. At the same time, the power supply of the first trolley 18 is completed by the power supply device arranged inside the tunnel below the first trolley 18. The specific arrangement and working principle of the existing technology are not described here.

[0056] Further, after the first continuous casting strand 12 enters the first continuous casting strand, the signal feedback by the strand signal tracker 25 can control the running speed of the first hot conveying roller way 3 after the signal enters the existing electrical system of the device. When the first continuous casting strand 12 approaches the first lifting roller way 26, its running speed is reduced to about 10 m / min to ensure its stable entry into each roller of the first lifting roller way 26. After the first continuous casting strand 12 completely enters the first lifting roller way 26, the rollers of the first lifting roller way 26 stop running, and the first lifting hydraulic cylinder 28 below the first lifting roller way 26 starts working. Figure 7 As shown, under the hydraulic drive, the first roller way frame of the first lifting roller way 26 is lowered by the first lifting roller 27 below to the first lifting slide rail, and the overall height of the first roller way frame is lowered by 0.8 meters to ensure that the roller surface height where the first continuous casting strand 12 is located is consistent with the roller surface height of the first rolling hot conveying line. It should be noted that when the rollers of the first lifting roller way 26 stop running, the strand blocking plate 36 arranged behind the first lifting roller way 26 across the roller line can effectively prevent the first continuous casting strand 12 from rushing out of the casting line of the first continuous casting hot conveying line. Figure 1 As shown, when the first continuous casting strand 12 enters the first rolling hot conveying line, its speed is slowly reduced until the first continuous casting strand 12 enters the first rotary disc roller way 7 when it reaches the junction of rolling and continuous casting. After the first continuous casting strand 12 hits the fixed baffle at the first rotary disc roller way 7, the roller stops running. At this time, the first continuous casting strand 12 can enter the rolling workshop to start the next rolling process.

[0057] Secondly, the hot conveying horizontal strand delivery subsystem from the second slab strand delivery line to the second rolling hot conveying line is described in detail:

[0058] The second slab delivery line is close to the second continuous casting hot charging line, and the delivery roll surface height of the second slab delivery line is consistent with the height of the second continuous casting hot charging line, so the delivery of the second subsystem is simpler than the previous part. When the second continuous casting billet 13 produced by the second slab delivery line stops on the two delivery roll tables, after the second lifting baffle 17 is lowered, the second continuous casting billet 13 is conveyed to the second horizontal roll table 22 of the second trolley 19, and when reaching the second fixed baffle 24, the second horizontal roll table 22 of the second trolley 19 automatically stops operating, and the second trolley 19 starts to convey the billet at a close distance. The closest distance between the second slab delivery line and the second continuous casting hot charging line is only 2.5 meters, so the conveying speed of the second trolley 19 is relatively low. When the center line of the roll table of the second trolley 19 is aligned with the center line of the second continuous casting hot charging line, the roll table of the second trolley 19 conveys the second continuous casting billet 13 to the roll table of the second continuous casting hot charging line, and starts the billet conveying process from the second continuous casting hot charging line to the second rolling hot charging line. This process is the same as the process of conveying the billet from the first continuous casting hot charging line to the first rolling hot charging line, which will not be repeated here.

[0059] It should be noted that, as shown in Figure 1 , when the first continuous casting hot charging line and the second continuous casting hot charging line pass through the area below the automobile road, the hot charging roll table steel bridge 35 must be arranged below the roll table to ensure the smooth passage of the automobile below. In order to prevent the influence of weather such as rain, the hot charging roll table rain shed 34 is arranged above the two continuous casting hot charging lines, and the corresponding public auxiliary implementation is matched to ensure the smooth operation of the billet conveying.

[0060] And, as shown in Figure 1 , a third trolley is arranged at the end of the second horizontal roll table 22, which is a standby trolley. When the second trolley 19 fails to operate, the third trolley can replace the second trolley 19 to work and convey the second continuous casting billet 13 produced by the second slab delivery line to the second continuous casting hot charging line. The second trolley 19 also has the function of replacing the first trolley 18 to convey the billet, which is a switchable billet conveying transverse trolley.

[0061] Therefore, the device fully and successfully solves the matching design of the continuous casting workshop delivery production line and the rolling workshop hot charging production line, has high operation efficiency, simple and reliable equipment, provides a feasible solution for production enterprises, reduces construction investment, and has high economic benefits.

[0062] In addition, in the embodiment, a slab hot charging and hot charging delivery method is also provided, and a slab hot charging and hot charging delivery system is used for slab conveying. The method mainly includes the following steps:

[0063] Step one, stop the transportation of the first continuous casting billet 12 on the first double-flow slab continuous casting machine 1 and the second continuous casting billet 13 on the second double-flow slab continuous casting machine 2 respectively, lower the first lifting baffle 15 and the second lifting baffle 17, and transport the first continuous casting billet 12 onto the first horizontal roller 20 of the transverse moving mechanism and the second continuous casting billet 13 onto the second horizontal roller 22 of the transverse moving mechanism; when the first continuous casting billet 12 reaches the first fixed baffle 23 on the first horizontal roller 20, stop the operation of the first horizontal roller 20, at this time the first continuous casting billet 12 is located on the first horizontal roller 20 of the first trolley 18; when the second continuous casting billet 13 reaches the second fixed baffle 24 on the second horizontal roller 22, stop the operation of the second horizontal roller 22, at this time the second continuous casting billet 13 is located on the second horizontal roller 22 of the second trolley 19;

[0064] Step two, start the first trolley 18 and the second trolley 19 respectively, the first trolley 18 drives the first continuous casting billet 12 to pass through the first horizontal roller 20 and the first inclined roller 21 in turn, and the second trolley 19 drives the second continuous casting billet 13 to pass through the second horizontal roller 22;

[0065] Step three, when the first continuous casting billet 12 reaches the position close to the first hot charging roller 3, gradually reduce the transverse moving speed of the first trolley 18 until the roller center line of the first trolley 18 is aligned with the center line of the first hot charging roller 3, then stop the first trolley 18, and transport the first continuous casting billet 12 onto the first hot charging roller 3 through the rotation of the first horizontal roller 20; when the second continuous casting billet 13 reaches the position close to the second hot charging roller 4, gradually reduce the transverse moving speed of the second trolley 19 until the roller center line of the second trolley 19 is aligned with the center line of the second hot charging roller 4, then stop the second trolley 19, and transport the second continuous casting billet 13 onto the second hot charging roller 4 through the rotation of the second horizontal roller 22;

[0066] Step four, when the first continuous casting billet 12 is transported on the first hot delivery roller 3 to the first lifting roller 26 near the first lifting mechanism 5, the running speed of the first hot delivery roller 3 is reduced to 10 m / min, when the first continuous casting billet 12 enters the inside of the first lifting roller 26, the first lifting roller 26 is stopped, and the first lifting hydraulic cylinder 28 in the first lifting mechanism 5 is used to lower the first lifting roller 26 by 0.8 meters, so that the height of the first continuous casting billet 12 is the same as the roller surface height of the first rotary roller 7, and then the first continuous casting billet 12 enters the first rotary roller 7 to start the next rolling process; when the second continuous casting billet 13 is transported on the second hot delivery roller 4 to the second lifting roller 30 near the second lifting mechanism 6, the running speed of the second hot delivery roller 4 is reduced to 10 m / min, when the second continuous casting billet 13 enters the inside of the second lifting roller 30, the second lifting roller 30 is stopped, and the second lifting hydraulic cylinder 32 in the second lifting mechanism 6 is used to lower the second lifting roller 30 by 0.8 meters, so that the height of the second continuous casting billet 13 is the same as the roller surface height of the second rotary roller 8, and then the second continuous casting billet 13 enters the second rotary roller 8 to start the next rolling process.

[0067] In summary, the slab hot charging and hot delivery system and the slab hot charging and hot delivery method of the present application solve the problem of reasonable matching of the continuous casting plant delivery line and the hot delivery production line of the rolling plant. The system can reasonably complete the long-distance transverse transfer and hot delivery of four flow slabs produced by two double-flow slab continuous casting machines, and can realize the successful matching of the continuous casting plant delivery roller surface and the rolling plant rotary roller surface on the hot delivery line. The newly built hot delivery system effectively utilizes the four-casting-flow slabs to be hot delivered and hot charged to the corresponding rolling production line, has high energy saving and environmental protection, and has high economic benefits. The newly built second double-flow slab continuous casting machine 2 roller surface elevation and the second hot delivery roller surface elevation are reasonably designed, the four-flow continuous casting billet is hot delivered to the corresponding two hot delivery production lines under the premise of minimizing equipment investment. Furthermore, the first double-flow slab continuous casting machine 1 is far away from the first hot delivery roller 3, the roller surface elevation of the first hot delivery roller 3 is reduced by 2.2 meters, and the required slope is reduced to not more than 3%, which is beneficial to the stability of the first trolley 18 transversely transporting the billet on the inclined roller 21. In addition, the signal acquisition of the slab signal tracker 25 is reasonably used, and timely feedback is given to the PLC control system of the casting machine, combined with the frequency converter operation of the continuous casting machine, the casting billet and the transverse movement trolley are optimized, and the hot delivery efficiency is greatly improved. Furthermore, the process scheme is simple, the equipment type structure is simple, the hot delivery logic is clear, the production interface is friendly, and the user is easy to operate and control; at the same time, the construction cost and the later maintenance cost are reduced, and it has good portability and high economic value.

[0068] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A slab hot charging and hot sending slab system, characterized by, The application relates to a first double-flow slab continuous casting machine, a second double-flow slab continuous casting machine, a transverse moving mechanism, a first hot conveying roller way, a second hot conveying roller way, a first lifting mechanism, a second lifting mechanism, a first rotary disc roller way and a second rotary disc roller way, wherein the transverse moving mechanism has a first horizontal roller surface, an inclined roller surface and a second horizontal roller surface which are sequentially connected; the first double-flow slab continuous casting machine and the second double-flow slab continuous casting machine are arranged at positions close to both ends on the same side of the transverse moving mechanism in parallel and at intervals, the roller surface height of the first double-flow slab continuous casting machine is 2.2 meters higher than that of the second double-flow slab continuous casting machine, the roller surface height of the second double-flow slab continuous casting machine is 0.8 meters higher than that of the second rotary disc roller way, the roller surface height of the first rotary disc roller way is the same as that of the second rotary disc roller way, the height of the first horizontal roller surface is the same as the roller surface height of the first double-flow slab continuous casting machine, and the height of the second horizontal roller surface is the same as the roller surface height of the second double-flow slab continuous casting machine; the first double-flow slab continuous casting machine is adjacent to the first horizontal roller surface and is used for transporting the produced first continuous casting slab onto the first horizontal roller surface, and the first continuous casting slab is transported onto the first hot conveying roller way through the transverse moving mechanism; the second double-flow slab continuous casting machine is adjacent to the second horizontal roller surface and is used for transporting the newly produced second continuous casting slab onto the second horizontal roller surface, and the second continuous casting slab is transported onto the second hot conveying roller way through the transverse moving mechanism; the first hot conveying roller way and the second hot conveying roller way are arranged at the other side of the transverse moving mechanism in parallel and at intervals, the first hot conveying roller way is adjacent to one end surface of the second horizontal roller surface which is connected with the inclined roller surface, and the second hot conveying roller way is adjacent to the other end surface of the second horizontal roller surface; the first hot conveying roller way, the first lifting mechanism and the first rotary disc roller way are sequentially connected and are in the same straight line, the central axis of the first double-flow slab continuous casting machine is parallel to the central axis of the first hot conveying roller way and is perpendicular to the central axis of the transverse moving mechanism; the second hot conveying roller way, the second lifting mechanism and the second rotary disc roller way are sequentially connected and are in the same straight line, the central axis of the second double-flow slab continuous casting machine is parallel to the central axis of the second hot conveying roller way and is perpendicular to the central axis of the transverse moving mechanism; the first hot conveying roller way is used for sequentially transporting the first continuous casting slab onto the first lifting mechanism and the first rotary disc roller way, the first lifting mechanism is used for lowering the roller surface height of the first continuous casting slab, the second hot conveying roller way is used for sequentially transporting the second continuous casting slab onto the second lifting mechanism and the second rotary disc roller way, and the second lifting mechanism is used for lowering the roller surface height of the first continuous casting slab; the transverse moving mechanism comprises a first trolley, a second trolley, a first horizontal roller way, an inclined 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 sequentially reduced in height, the first horizontal roller way is arranged in a horizontal shape and has the same height as the roller surface height of the first double-flow slab continuous casting machine, 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 and gradually reduces in height from the first horizontal roller way to the second horizontal roller way, the upper surface of the slope roller way is the slope roller surface; the second horizontal roller way is arranged in a horizontal shape and has the same height as the roller surface height of the second double-flow slab continuous casting machine, the upper surface of the second horizontal roller way is the second horizontal roller surface; the first fixed baffle is fixedly installed on the other side of the first horizontal roller way away from the first double-flow slab continuous casting machine, and the second fixed baffle is fixedly installed on the other side of the second horizontal roller way away from the first double-flow slab continuous casting machine; the first trolley is movably arranged on the end of the first horizontal roller way and used for conveying the first continuously cast slab to the first hot conveying roller way through the slope roller way; the second trolley is movably arranged on the end of the second horizontal roller way and used for conveying the second continuously cast slab to the second hot conveying roller way; and the slope of the slope roller way is designed to be less than or equal to 3%.

2. The slab hot-charging and hot-feeding slab system according to claim 1, characterized in that, The first double-flow slab continuous casting machine comprises two groups of first slab discharge roller tables and a first lifting baffle, the two groups of first slab discharge roller tables are arranged in parallel and at intervals, and are rollably connected to one side of the transverse movement mechanism and located close to one end, for transporting the first continuous casting slab to the first horizontal roller table; the first lifting baffle is vertically installed at the slab discharge port of the first slab discharge roller table.

3. The slab hot-charging hot-feeding slab system according to claim 1, characterized in that, The second double-flow slab continuous casting machine comprises two groups of second slab discharge roller tables and a second lifting baffle, the two groups of second slab discharge roller tables are arranged in parallel and at intervals, and are rollably connected to one side of the transverse movement mechanism and located close to the other end, for transporting the second continuous casting slab to the second horizontal roller table; the second lifting baffle is vertically installed at the slab discharge port of the second slab discharge roller table.

4. The slab hot-charging and hot-feeding slab system according to claim 1, characterized in that, A plurality of signal trackers are installed at intervals on the opposite sides of the transverse movement mechanism and 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.

5. The slab hot-charging hot-feeding slab system according to claim 1, characterized in that, The transverse movement speed of the first trolley is 60-80 m / min.

6. The slab hot-charging hot-feeding slab system according to claim 1, characterized in that, The first lifting mechanism comprises a first lifting roller table, two groups of first lifting rollers, a first lifting hydraulic cylinder and two groups of first inclined lifting slide rails; the two groups of first inclined lifting slide rails are arranged in parallel and at intervals between the first hot charging roller table and the first rotary disc roller table, and the height of the first inclined lifting slide rail gradually decreases from the first hot charging roller table to the first rotary disc roller table; the bottom ends of the first lifting roller table are respectively installed on the corresponding first inclined lifting slide rails through the first lifting rollers in a lifting movable manner; the first lifting hydraulic cylinder is installed between the two groups of first inclined lifting slide rails, and the driving end is drivingly connected to the bottom of the first lifting roller table close to the first hot charging roller table, for driving the first lifting roller table to lift.

7. The slab hot-charging hot-feeding slab system according to claim 1, characterized in that, The second lifting mechanism comprises a second lifting roller table, two groups of second lifting rollers, a second lifting hydraulic cylinder and two groups of second inclined lifting slide rails; the two groups of second inclined lifting slide rails are arranged in parallel and at intervals between the second hot charging roller table and the second rotary disc roller table, and the height of the second inclined lifting slide rail gradually decreases from the second hot charging roller table to the second rotary disc roller table; the bottom ends of the second lifting roller table are respectively installed on the corresponding second inclined lifting slide rails through the second lifting rollers in a lifting movable manner; the second lifting hydraulic cylinder is installed between the two groups of second inclined lifting slide rails, and the driving end is drivingly connected to the bottom of the second lifting roller table close to the second hot charging roller table, for driving the second lifting roller table to lift.

8. A slab hot charging and hot sending slabbing method, characterized by, The slab hot charging and hot charging slabbing system of any one of claims 1-7 is used for slab transportation; comprising the following steps: Step one, stop the first continuous casting billet and the second continuous casting billet respectively, lower the first lifting baffle and the second lifting baffle, and transport the first continuous casting billet to the first horizontal roller of the transverse moving mechanism and the second continuous casting billet to the second horizontal roller of the transverse moving mechanism; stop the first horizontal roller when the first continuous casting billet reaches the first fixed baffle on the first horizontal roller; stop the second horizontal roller when the second continuous casting billet reaches the second fixed baffle on the second horizontal roller; Step two, start the first trolley and the second trolley, the first trolley drives the first continuous casting billet to pass through the first horizontal roller and the first inclined roller in sequence, and the second trolley drives the second continuous casting billet to pass through the second horizontal roller; Step three, when the first continuous casting billet reaches the position close to the first hot feeding roller, gradually reduce the transverse moving speed of the first trolley until the roller center line of the first trolley is aligned with the center line of the first hot feeding roller, stop the first trolley, and transport the first continuous casting billet to the first hot feeding roller through the rotation of the first horizontal roller; when the second continuous casting billet reaches the position close to the second hot feeding roller, gradually reduce the transverse moving speed of the second trolley until the roller center line of the second trolley is aligned with the center line of the second hot feeding roller, stop the second trolley, and transport the second continuous casting billet to the second hot feeding roller through the rotation of the second horizontal roller; Step four, when the first continuous casting billet is transported on the first hot feeding roller to the position close to the first lifting roller on the first lifting mechanism, reduce the running speed of the first hot feeding roller to 10 m / min, stop the operation of the first lifting roller after the first continuous casting billet enters the inside of the first lifting roller, and lower the first lifting roller as a whole by 0.8 meters through the first lifting hydraulic cylinder in the first lifting mechanism, so that the height of the first continuous casting billet is the same as the roller surface height of the first rotary roller, and then enter the first rotary roller to start the next rolling process; when the second continuous casting billet is transported on the second hot feeding roller to the position close to the second lifting roller on the second lifting mechanism, reduce the running speed of the second hot feeding roller to 10 m / min, stop the operation of the second lifting roller after the second continuous casting billet enters the inside of the second lifting roller, and lower the second lifting roller as a whole by 0.8 meters through the second lifting hydraulic cylinder in the second lifting mechanism, so that the height of the second continuous casting billet is the same as the roller surface height of the second rotary roller, and then enter the second rotary roller to start the next rolling process.

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