A finishing method and system for improving hot delivery and hot loading of slabs

Abstract

The present invention relates to a finishing method and system for improving the hot delivery and hot charging of slabs, belonging to the field of metallurgical continuous casting technology. The slabs produced by the slab continuous casting machine are identified by an online slab heat inspection system for defective slabs. The slab flow direction is set according to whether the slabs have defects, the defect locations, and the defect characteristics. Slabs without defects are directly delivered hot to the steel rolling heating furnace, slabs with surface defects are sent to a mechanical flame cleaning machine for surface defect cleaning, and slabs with corner defects are sent to a corner cleaning machine for corner defect cleaning. The processed slabs are then delivered hot to the steel rolling heating furnace. The present invention eliminates the need for defective slabs to wait for a crane to lift them off the production line, wait for the slabs to cool, and then be manually cleaned and finished before being sent to the steel rolling mill. This reduces the processing time of defective slabs, significantly reduces energy consumption and production costs, improves the hot delivery and hot charging rate of slabs, and improves energy utilization.

Description

Technical Field

[0001] The invention belongs to the technical field of metallurgical continuous casting, and relates to a finishing method and system for improving hot delivery and hot loading of slabs. Background Art

[0002] During the continuous casting process, quality defects such as longitudinal cracks and transverse cracks at the corners occasionally occur, influenced by molten steel composition, casting temperature fluctuations, and operational performance. When producing high-quality steel, the addition of microalloying elements, such as carbonitrides, modulates the recrystallizer behavior of deformed austenite and inhibits grain growth, thereby refining the grains. However, if not properly controlled, large amounts of carbonitrides can precipitate at grain boundaries, reducing the steel's plasticity and causing transverse cracks at the corners. Continuous casting researchers at home and abroad have conducted extensive research on slab quality, but fundamentally addressing these defects remains elusive, with most efforts limited to mitigating their incidence. Therefore, to ensure the quality of subsequent rolling operations, defective slabs must be mechanically flame-cleaned or edge-flamed. Currently, edge-flaming is primarily a laborious process at steel mills, requiring manual inspection or sampling after the slabs are hoisted off the production line. Once a defect is detected, the slabs must be allowed to cool before undergoing flame-cleaning. This process significantly reduces the efficiency of hot delivery and hot loading of slabs, but also results in high energy consumption.

[0003] It can be seen that in order to create better conditions for continuous casting and rolling and solve the problem of defective slabs that occur during the production process, a new process technology method is needed to solve the above problems. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide a finishing method and system for improving the hot delivery and hot loading of slabs, so as to reduce the processing time of defective slabs, improve the hot delivery and hot loading rate of slabs, and reduce energy consumption.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A finishing method for improving hot delivery and hot loading of slabs, wherein slabs produced by a slab continuous casting machine are passed through a slab online heat inspection system to identify defective slabs, and the slab flow direction is set according to whether the slabs have defects, the defect locations, and the defect characteristics. Slabs without defects are directly delivered hot to a steel rolling heating furnace, slabs with surface defects are sent to a mechanical flame cleaning machine for surface defect cleaning, and slabs with edge and corner defects are sent to an edge and corner cleaning machine for edge and corner defect cleaning. The treated slabs are then delivered hot to a steel rolling heating furnace.

[0007] Optionally, the slab is first deburred and numbered, and then the defective slab is identified by the slab online thermal inspection system.

[0008] Optionally, the online thermal inspection system transmits the defect location and defect characteristics of the defective slab to the casting strand tracking system. The casting strand tracking system records whether the slab has defects and the defect location and defect characteristics based on the feedback information of the slab online thermal inspection system, and sets the slab flow direction accordingly.

[0009] Optionally, the strand tracking system records the position and status information of the slab in the finishing transport route in real time and issues the next action instruction.

[0010] A finishing system for improving hot delivery and hot loading of slabs comprises a main roller conveying system and a defective slab conveying system arranged in sequence along the slab conveying direction, the defective slab conveying system comprises a surface defective slab conveying system and a corner defective slab conveying system arranged in parallel; a deburring machine, a number spraying machine and a slab online heat inspection system are arranged in sequence along the slab conveying direction corresponding to the main roller conveying system; a mechanical flame cleaning machine is arranged at the position corresponding to the surface defective slab conveying system; the corner defective slab conveying system comprises an inner arc side corner defective slab conveying system, an outer arc side corner defective slab conveying system and a cleaned slab conveying system arranged in sequence along the slab conveying direction; a first transfer machine is arranged between the main roller conveying system and the inner arc side corner defective slab conveying system; a deburring machine, a number spraying machine and a slab online heat inspection system are arranged in sequence along the slab conveying direction corresponding to the main roller conveying system; a mechanical flame cleaning machine is arranged at the position corresponding to the surface defective slab conveying system; a corner defective slab conveying system comprises an inner arc side corner defective slab conveying system, an outer arc side corner defective slab conveying system and a cleaned slab conveying system The slab conveying system is provided with an inner arc side corner cleaner and a first slab conveying trolley in sequence along the slab conveying direction; a second transfer machine and a slab turner are provided between the slab conveying system with inner arc side corner defects and the slab conveying system with outer arc side corner defects, and the slab turner is arranged above the second transfer machine; the corresponding slab conveying system with outer arc side corner defects is provided with a second slab conveying trolley and an outer arc side corner cleaner in sequence along the slab conveying direction; a third transfer machine is provided between the slab conveying system with outer arc side corner defects and the cleaned slab conveying system; the cleaned slab conveying system and the surface defect slab conveying system are merged into the parallel flow roller leading to the steel rolling heating furnace through a turntable; it also includes a casting strand tracking system, which records the position and status information of the slab in the finishing conveying route in real time, and controls the flow direction of the slab.

[0011] Optionally, the cleaned slab conveying system is located between the slab conveying system with inner arc side corner defects and the slab conveying system with outer arc side corner defects.

[0012] Optionally, the cleaned slab conveying system is located on the side of the slab conveying system with outer arc side corner defects away from the slab conveying system with inner arc side corner defects.

[0013] Optionally, when a single-strand slab continuous casting machine is used for production, the main roller conveying system includes a deburring roller, a numbering roller, and a conveying roller arranged in sequence along the slab conveying direction, the slab online heat inspection system is set at the position corresponding to the conveying roller, the deburring machine is set at the position corresponding to the burr roller, and the numbering machine is set at the position corresponding to the numbering roller.

[0014] Optionally, when a multi-strand slab continuous casting machine is used for production, the main roller conveying system includes a casting strand roller, a transverse trolley roller, a transition roller, and a first transfer machine roller arranged in sequence along the slab conveying direction, the casting strand roller includes a plurality of sub-casting strand rollers arranged in parallel, the sub-casting strand rollers include a deburring roller, a numbering roller, and a conveying roller arranged in sequence along the slab conveying direction, the slab online heat inspection system is arranged at the position corresponding to the conveying roller or the transition roller, the deburring machine is arranged at the position corresponding to the burr roller, the numbering machine is arranged at the position corresponding to the numbering roller, a transverse trolley is provided on the transverse trolley roller, and a lifting baffle is provided at the end of each stream conveying roller.

[0015] Optionally, the first slab conveying trolley and the second slab conveying trolley are provided with a cleaning slag collecting device to collect the waste steel slag generated when the edge cleaning machine cleans the slabs.

[0016] The beneficial effect of the present invention is that by directly hot-delivering and hot-loading the defective slabs to the hot rolling system after online processing, the process of waiting for the defective slabs to be lifted off the line by a crane and then cooled and manually cleaned and finished before being sent for steel rolling is eliminated, thereby reducing the processing time of the defective slabs, greatly reducing energy consumption and production costs, improving the hot-delivery and hot-loading rate of the slabs, and improving the resource utilization rate.

[0017] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0019] Figure 1 Schematic diagram of the finishing system of the present invention Figure 1 ;

[0020] Figure 2 Schematic diagram of the finishing system of the present invention Figure 2 .

[0021] Figure numerals: deburring roller 1, deburring machine 2, numbering roller 3, numbering machine 4, conveying roller 5, lifting baffle 6, transverse trolley roller 7, transition roller 8, slab online thermal inspection system 9, first transfer machine 10, first transfer machine roller 11, mechanical flame cleaning machine input roller 12, mechanical flame cleaning machine 13, mechanical flame cleaning machine output roller 14, hot delivery roller 15, inner arc side edge corner defect slab conveying system 16, inner arc side edge corner cleaning machine 17, first slab conveying trolley 18, slab turning machine 19, outer arc side edge corner defect slab conveying system 20, second slab conveying trolley 21, outer arc side edge corner cleaning machine 22, third transfer machine 23, third transfer machine roller 24, parallel flow roller 25, hot delivery and conveying roller 26. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention by means of specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the dimensions of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] See also Figures 1 and 2A finishing method for improving the hot delivery and hot charging of slabs, wherein the slabs produced by the slab continuous casting machine are identified with defective slabs through the slab online heat inspection system 9, and the slab flow direction is set according to whether the slabs have defects and the defect location and defect characteristics. The defect-free slabs are directly hot delivered to the steel rolling heating furnace, the slabs with surface defects are sent to the mechanical flame cleaning machine 13 for surface defect cleaning, and the slabs with edge and corner defects are sent to the edge and corner cleaning machine for edge and corner defect cleaning. The processed slabs are hot delivered to the steel rolling heating furnace to complete the hot delivery and hot charging of the slabs.

[0026] This finishing method allows defective slabs produced by single-strand or multi-strand slab continuous casting machines to be processed online and then directly transferred and hot-charged to the hot rolling system. This reduces the processing time of defective slabs and eliminates the need for them to wait for cranes to lift them off the production line, cool, and then be manually cleaned before being sent to the mill. This significantly reduces energy consumption and production costs, while increasing the hot-charging rate of slabs. This finishing method can expand the production of various steel varieties, is highly energy-efficient, energy-saving, and environmentally friendly, and ensures product quality.

[0027] Optionally, the slab is first deburred and numbered, and then the defective slab is identified by the slab online thermal inspection system 9; the online thermal inspection system transmits the defect position and defect characteristics of the defective slab to the casting strand tracking system, and the casting strand tracking system records whether the slab has defects and the defect position and defect characteristics according to the feedback information of the slab online thermal inspection system 9, and sets the slab flow direction accordingly; the casting strand tracking system records the position and status information of the slab in the finishing transportation route in real time, and issues the next action instruction.

[0028] A finishing system for improving hot delivery and hot loading of slabs, comprising a main roller conveying system and a defective slab conveying system arranged in sequence along the slab conveying direction, the defective slab conveying system comprising a surface defective slab conveying system and a corner defective slab conveying system arranged in parallel; a deburring machine 2, a number spraying machine 4, and a slab online heat inspection system 9 are arranged in sequence along the slab conveying direction corresponding to the main roller conveying system; a mechanical flame cleaning machine 13 is arranged at the position corresponding to the surface defective slab conveying system; the corner defective slab conveying system comprises an inner arc side corner defective slab conveying system 16, an outer arc side corner defective slab conveying system 20 and a cleaned slab conveying system arranged in sequence along the slab conveying direction; a first transfer machine 10 is arranged between the main roller conveying system and the inner arc side corner defective slab conveying system 16; a first transfer machine 10 is arranged along the inner arc side corner defective slab conveying system 16 corresponding to the inner arc side corner defective slab conveying system An inner arc side corner cleaner 17 and a first slab conveying trolley 18 are sequentially provided in the slab conveying direction; a third transfer machine 23 and a slab turner 19 are provided between the inner arc side corner defect slab conveying system 16 and the outer arc side corner defect slab conveying system 20, and the slab turner 19 is arranged above the third transfer machine 23; corresponding to the outer arc side corner defect slab conveying system 20, a second slab conveying trolley 21 and an outer arc side corner cleaner 22 are sequentially provided along the slab conveying direction; a third transfer machine is provided between the outer arc side corner defect slab conveying system 20 and the cleaned slab conveying system; the cleaned slab conveying system and the surface defect slab conveying system are merged into the parallel flow roller 25 leading to the steel rolling heating furnace through a turntable; it also includes a casting strand tracking system, which records the position and status information of the slab in the finishing conveying route in real time and controls the flow direction of the slab.

[0029] After cleaning, the slab conveying system can be located between the inner arc side corner defect slab conveying system 16 and the outer arc side corner defect slab conveying system 20, or it can be located on the side of the outer arc side corner defect slab conveying system 20 away from the inner arc side corner defect slab conveying system 16.

[0030] When a single-strand slab continuous casting machine is used for production, the main roller conveying system includes a deburring roller 1, a numbering roller 3, and a conveying roller 5 arranged in sequence along the slab conveying direction. The slab online heat inspection system 9 is arranged at a position corresponding to the conveying roller 5, the deburring machine 2 is arranged at a position corresponding to the burr roller, and the numbering machine 4 is arranged at a position corresponding to the numbering roller 3.

[0031] When a multi-strand slab continuous casting machine is used for production, the main roller conveying system includes a casting strand roller, a transverse trolley roller 7, a transition roller 8, and a first transfer machine 10 roller arranged in sequence along the slab conveying direction. The casting strand roller includes a plurality of sub-casting strand rollers arranged in parallel. The sub-casting strand rollers include a deburring roller 1, a numbering roller 3, and a conveying roller 5 arranged in sequence along the slab conveying direction. The slab online heat inspection system 9 is arranged at a position corresponding to the conveying roller 5 or the transition roller 8. The deburring machine 2 is arranged at a position corresponding to the burr roller. The numbering machine 4 is arranged at a position corresponding to the numbering roller 3. A transverse trolley is provided on the transverse trolley roller 7, and a lifting baffle 6 is provided at the end of each stream conveying roller 5.

[0032] The present invention aims to optimize and improve the existing process flow for finishing and re-entering slabs after they are removed from the production line. This invention assigns different routes to slabs based on the characteristics identified by the online slab thermal inspection system 9. This addresses the quality issues associated with rolling caused by slab surface defects, improves the hot delivery and hot loading rate of the slab continuous caster, and effectively utilizes thermal energy.

[0033] Example 1

[0034] A finishing system for improving hot delivery and hot loading of slabs, such as Figure 1 As shown, it includes a roller conveyor system, a deburring machine 2, a marking machine 4, a slab online thermal inspection system 9, a first transfer machine 10, a third transfer machine 23, a first slab conveying trolley 18, a mechanical flame cleaning machine 13, an inner arc side corner cleaning machine 17, an outer arc side corner cleaning machine 22, a slab turning machine 19, a transfer machine, etc. The roller conveyor system includes a deburring roller 1, a marking roller 3, a conveying roller 5, a transverse trolley roller 7, a transition roller 8, a first transfer machine roller 11, a mechanical flame cleaning machine input roller 12, a mechanical flame cleaning machine output roller 14, a hot delivery roller 15, a third transfer machine roller 24, a turntable, a parallel flow roller 25, etc.

[0035] After the slabs produced by the multi-strand continuous slab caster are cut, the strand tracking system conveys them to a deburring roller conveyor 1. Deburring machines 2 remove burrs from the ends of the slabs before they pass through numbering roller conveyor 3 and onto numbering machine 4. Numbering machine 4 marks the slabs before conveying them to conveyor conveyor 5. At the end of each strand conveyor, in front of the transverse trolley, a lifting plate 6 is installed. If the transverse trolley has not reached the strand position, the lifting plate 6 is raised to prevent the slabs from flowing out of the conveyor conveyor. Based on the arrival time of each strand slab on conveyor conveyor 5, the strand tracking system instructs the transverse trolley roller conveyor 7 to convey the slabs to the transition roller conveyor 8. Upon arrival at transition roller conveyor 8, the slab online thermal inspection system 9, located there, scans the upper and lower surfaces of the slab using thermal imaging. The scanned images are compared with a database, and defects are graded and assessed, simultaneously assessing the quality of the cast slabs. After identifying each passing slab, the system transmits quality information (including defect location and type) to the strand tracking system. The strand tracking system determines the slab's destination based on its characteristics. 1) Slabs requiring surface cleaning are sent by the roller conveyor system to a mechanical scarfing machine 13 for surface cleaning before being sent to the rolling furnace. 2) Slabs requiring corner cleaning are sent by the roller conveyor system to a corner cleaning machine to address any defects. The slabs are then delivered to the rolling furnace via a transfer machine and slab transport trolley. 3) Slabs without defects are sent directly by the roller conveyor system to the rolling furnace for hot delivery and hot charging. During transport, the strand tracking system records the slab's current location based on signals from photoelectric tubes at the end of each roller set and issues instructions for the next action.

[0036] The slab online thermal inspection system 9 is mainly composed of an upper mark inspection system, a lower mark inspection system, a length measurement system, and a control system.

[0037] The mechanical flame scrubber 13 is mainly composed of a scrubber body, an energy medium control system, a hose tower device, a flue gas collection and dust removal system, a high-pressure water dephosphorization device, an electrical control system, a monitoring system, etc.

[0038] The first transfer machine 10 is arranged horizontally on the transfer machine roller table and extends to the side of the first slab conveyor trolley 18. The first transfer machine 10 can be equipped with multiple slab storage locations for temporary storage. Slabs requiring corner cleaning are transferred by the first transfer machine 10 to the first slab conveyor trolley 18. The strand tracking system determines the cleaning route for the upper surface, upper and lower surfaces, or lower surface based on the slab's defect characteristics.

[0039] For slabs that only need to have their upper surfaces cleaned, after the upper surfaces are cleaned, they are transported by the first slab transport trolley 18 to the third transfer machine 23 , and then transported by the third transfer machine 23 to the third transfer machine roller table 24 .

[0040] For slabs that need to have their upper and lower surfaces cleaned, after the upper surface is cleaned, the first slab transport trolley 18 transports the slab to the slab turning and transferring machine, where the slab is turned so that the lower surface faces upward, and then the slab is transported to the second slab transport trolley 21 by the transferring machine.

[0041] The blank turning and transferring machine includes a blank turning machine 19 and a second transfer machine. The blank turning machine 19 is a hydraulic cylinder type. The blank turning machine is arranged above the second transfer machine. The second transfer machine receives the slabs on the first slab conveying trolley 18 and conveys them to the front of the blank turning machine 19. After the blank turning machine 19 is flipped over, it is sent to the second slab conveying trolley 21; the second transfer machine is provided with a hydraulic lifting rope traction trolley to realize the conversion of the slabs on the roller and the slab conveying trolley.

[0042] The second slab conveying trolley 21 passes through the outer arc side edge corner cleaning machine 22, and the outer arc side edge corner cleaning machine 22 cleans the lower surface of the slab.

[0043] The corner cleaning machine is of gantry type, and includes the cleaning machine body, energy medium control system, fume collection and dust removal system, electrical control system, monitoring system, length measurement system, etc.

[0044] The strand tracking system transmits defect locations to the control systems of the inner arc side corner cleaner 17 and the outer arc side corner cleaner 22. As the first and second slab conveyor trolleys 18 and 21 pass through the gantry, they perform online cleaning of the slab corners based on the positions reported by the length measurement system. Slag collection devices are installed on the first and second slab conveyor trolleys 18 and 21 to collect waste slag from the slab cleaning machines.

[0045] The third transfer machine 23 completes the slab conveying on the first slab conveying trolley 18, the second slab conveying trolley 21 and the third transfer machine roller 24. The third transfer machine 23 can be provided with multiple slab storage positions for temporarily storing slabs.

[0046] The turntable and the parallel flow roller 25 are used for hot delivery of slabs, so that slabs at different positions can be directly delivered to the inlet roller of the hot rolling heating furnace.

[0047] Example 2

[0048] like Figure 2As shown, the difference from Example 1 is that the slab online thermal inspection system 9 is installed on the conveying roller 5, and the slab conveying system after cleaning is located on the side of the outer arc side corner defect slab conveying system 20 away from the inner arc side corner defect slab conveying system 16. When the slab arrives at the conveyor roller 5, the slab online thermal inspection system 9 arranged on the conveyor roller 5 performs thermal imaging scanning on the upper and lower surfaces of the slab, and the casting strand tracking system issues the slab's destination according to the quality information identified by the slab online thermal inspection system 9, and transports it to the corresponding route through the transverse trolley roller 7; the casting strand tracking system issues an instruction to the transverse trolley roller 7 to transport the slab to the transition roller 8, hot delivery and conveying roller 26 according to the time when each stream of slabs arrives at the conveyor roller 5; for slabs that only need to be cleaned on the upper surface, after the upper surface cleaning is completed, they are transported to the slab turning transfer machine by the first slab conveying trolley 18, and then sent to the second slab conveying trolley 21 by its transfer machine, and the third transfer machine 23 completes the slab transportation on the second slab conveying trolley 21 and the third transfer machine roller 24.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions, which should all be included in the scope of the claims of the present invention.

Claims

1. A finishing system for improving hot delivery and hot loading of slabs, characterized by: The invention comprises a main roller conveying system and a defective slab conveying system arranged in sequence along the slab conveying direction, wherein the defective slab conveying system comprises a surface defective slab conveying system and an edge and corner defective slab conveying system arranged in parallel; a deburring machine (2), a number spraying machine (4), and an online slab heat detection system (9) are arranged in sequence along the slab conveying direction corresponding to the main roller conveying system; a mechanical flame cleaning machine (13) is arranged at the position corresponding to the surface defective slab conveying system; the edge and corner defective slab conveying system comprises an inner arc side edge and corner defective slab conveying system (16), an outer arc side edge and corner defective slab conveying system (20), and a cleaned slab conveying system arranged in sequence along the slab conveying direction; a first transfer machine (10) is arranged between the main roller conveying system and the inner arc side edge and corner defective slab conveying system (16); a slab conveying system (16) is arranged in sequence along the slab conveying direction corresponding to the inner arc side edge and corner defective slab conveying system (16) An inner arc side corner cleaning machine (17) and a first slab conveying trolley (18); a second transfer machine and a slab turning machine (19) are provided between the inner arc side corner defect slab conveying system (16) and the outer arc side corner defect slab conveying system (20), and the slab turning machine (19) is arranged above the second transfer machine; a second slab conveying trolley (21) and an outer arc side corner cleaning machine (22) are provided in sequence along the slab conveying direction corresponding to the outer arc side corner defect slab conveying system (20); a third transfer machine (23) is provided between the outer arc side corner defect slab conveying system (20) and the cleaned slab conveying system; the cleaned slab conveying system and the surface defect slab conveying system are merged into a parallel flow roller (25) leading to the steel rolling heating furnace through a turntable; and a casting strand tracking system is also included, which records the position and status information of the slab in the finishing conveying route in real time and controls the flow direction of the slab.

2. A finishing system for improving hot delivery and hot loading of slabs according to claim 1, characterized in that: The cleaned slab conveying system is located between the inner arc side corner defect slab conveying system (16) and the outer arc side corner defect slab conveying system (20).

3. A finishing system for improving hot delivery and hot loading of slabs according to claim 1, characterized in that: The cleaned slab conveying system is located on a side of the outer arc side corner defect slab conveying system (20) away from the inner arc side corner defect slab conveying system (16).

4. A finishing system for improving hot delivery and hot loading of slabs according to claim 1, characterized in that: When a single-strand slab continuous casting machine is used for production, the main roller conveying system includes a deburring roller (1), a number spraying roller (3), and a conveying roller (5) arranged in sequence along the slab conveying direction, the slab online heat inspection system (9) is arranged at a position corresponding to the conveying roller (5), the deburring machine (2) is arranged at a position corresponding to the burring roller (1), and the number spraying machine (4) is arranged at a position corresponding to the number spraying roller (3).

5. The finishing system for improving hot delivery and hot loading of slabs according to claim 1, characterized in that: When a multi-strand slab continuous casting machine is used for production, the main roller conveying system includes a strand roller, a transverse trolley roller (7), a transition roller (8), and a first transfer roller (11) arranged in sequence along the slab conveying direction, the strand roller includes a plurality of sub-strand rollers arranged in parallel, and the sub-strand rollers include a deburring roller (1), a numbering roller (3), and a conveying roller (5) arranged in sequence along the slab conveying direction, the slab online heat inspection system (9) is arranged at a position corresponding to the conveying roller (5) or the transition roller (8), the deburring machine (2) is arranged at a position corresponding to the burring roller (1), the numbering machine (4) is arranged at a position corresponding to the numbering roller (3), a transverse trolley is provided on the transverse trolley roller (7), and a lifting baffle (6) is provided at the end of each strand conveying roller (5).

6. A finishing system for improving hot delivery and hot loading of slabs according to claim 1, characterized in that: The first slab conveying trolley (18) and the second slab conveying trolley (21) are provided with a cleaning slag collecting device to collect waste steel slag generated when the edge cleaning machine cleans the slabs.

7. A finishing method for improving the hot delivery and hot charging of slabs according to any one of claims 1 to 6, characterized in that: The slabs produced by the slab continuous casting machine are identified by the slab online heat inspection system (9). The slab flow direction is set according to whether the slab has defects, the defect location, and the defect characteristics. The defect-free slabs are directly sent hot to the steel rolling heating furnace. The slabs with surface defects are sent to the mechanical flame cleaning machine (13) for surface defect cleaning. The slabs with edge and corner defects are sent to the edge and corner cleaning machine for edge and corner defect cleaning. The processed slabs are sent hot to the steel rolling heating furnace.

8. The finishing method according to claim 7, characterized in that: The slabs are first deburred and numbered, and then the slab online thermal inspection system (9) identifies defective slabs.

9. The finishing method according to claim 7, characterized in that: The online thermal inspection system (9) transmits the defect position and defect characteristics of the defective slab to the casting strand tracking system. The casting strand tracking system records whether the slab has defects and the defect position and defect characteristics based on the feedback information of the slab online thermal inspection system (9), and sets the slab flow direction accordingly.

10. The finishing method according to claim 9, characterized in that: The strand tracking system records the position and status of the slab in the finishing transport route in real time and issues instructions for the next action.

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