Straddle type ladle repairing system for cold repairing of liquid metal ladle and using method of ladle repairing system

Abstract

The invention relates to the field of smelting, in particular to a ladle repairing system for span-crossing type liquid metal ladle cold repairing and a using method of the ladle repairing system, and the ladle repairing system is arranged in a station span which is most beneficial to smooth operation of a smelting process and efficient turnover of a liquid metal ladle among the station spans; the ladle repairing system comprises a crossing system, a knotting system, a masonry system and a baking system, wherein the knotting system, the masonry system and the baking system can be shared by liquid metal ladles (molten steel or hot metal ladles and the like) crossing a crossing line. The crossing system comprises a crossing track, and a multifunctional crossing vehicle used for loading knots to be subjected to cold repair or transferring liquid metal ladles is arranged on the crossing track; the knotting system is arranged in a station span with the lowest utilization rate of the original crown block system; through the ingenious design of straddle carrier type common knotting and the innovative layout of integrated integration of the straddle system, the knotting system, the masonry system and the baking system, the industrial problems are solved, and the ultimate and efficient targets of low investment, small occupied area and smooth transfer of molten steel and hot metal ladles are synchronously achieved.

Description

Technical Field

[0001] The present invention relates to the field of smelting, in particular to a cross-type liquid metal ladle cold repair system and a use method thereof. Background Art

[0002] Steel ladles and iron ladles are important refining processing containers and transportation tools in the smelting field, and play a very critical role in the smelting process.

[0003] However, since the steel shell sizes of the steel ladle and the iron ladle are not exactly the same, when the inner lining of the steel ladle and the iron ladle needs "cold overhaul", the knotting of the "refractory lining" also requires two different sizes of "knotting membranes" for construction, which not only results in large equipment investment, but also makes the knotting construction occupy a larger area.

[0004] In addition, the knotting of the refractory lining of the steel ladle and the iron ladle, the construction of the working lining, and the various types of bakers used for subsequent drying and baking are often arranged in a single-span factory building, which makes the "entire steel ladle and iron ladle cold repair area" occupy a large area, resulting in the overall process layout of the newly built steel plant unable to achieve "system optimization", which directly affects the future "extreme efficiency + low cost" operation of the steel plant.

[0005] The existing patent 2023211608551 - An assembled mold for tying the ladle lining does not clearly disclose the technical content for solving the above technical problems.

[0006] Therefore, in order to improve or solve at least one of the above problems, it is necessary to carry out "systematic linkage innovation" design of relevant equipment and process layout patterns in existing factories. Summary of the Invention

[0007] The object of the present invention is to provide a ladle repair system which is suitable for high-performance cold repair operations of both steel ladles and iron ladles.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is:

[0009] A repair kit system for cold repair of a cross-span liquid metal ladle, wherein the repair kit system is arranged within a plant workstation span;

[0010] The liquid metal ladle is a molten steel ladle or a molten iron ladle; the molten steel ladle or the molten iron ladle both comprise a steel shell barrel;

[0011] The steel shells of the ladles or iron ladles are of the same size;

[0012] The repair package system includes a span system for carrying and transporting the liquid metal package, a knotting system spanning the span system, a masonry system around the span system, and a baking system;

[0013] The cross-over system includes a cross-over track, on which a cross-over vehicle is provided for loading liquid metal ladles to be cold-repaired or transported;

[0014] The knotting system is used to perform knotting operations on the liquid metal ladle to be cold-repaired on the cross-car; the knotting system is required to be able to complete the knotting operation of the refractory material in the steel ladle or the iron ladle using a knotting membrane;

[0015] The masonry system is used for carrying out working lining construction of a liquid metal ladle to be cold-repaired;

[0016] The baking system is used to bake the liquid metal bag after the masonry is completed;

[0017] The plant workstation span includes at least one workstation span; the plant workstation span includes at least one overhead crane system;

[0018] The knotting system is arranged in the workstation span with the lowest utilization rate of the overhead crane system among the workstation spans in the factory area.

[0019] The steel ladle and the iron ladle can share a knotting system.

[0020] The baking system includes a ladle baking system and an iron ladle baking system; the ladle baking system is used to bake the completed molten steel ladle; the ladle baking system includes at least one ladle baker;

[0021] The ladle baking system is used to bake the molten iron ladle after it is built; the ladle baking system includes at least one ladle baker.

[0022] The knotting system includes knotting construction equipment, a knotting construction area, a knotting membrane storage area and a rotary distributor storage area that span the over-span track; the knotting membrane storage area and the rotary distributor storage area are distributed around the over-span track and are located at a position where the factory overhead crane can lift them.

[0023] The plant workstation spans include refining spans, converter spans, converter auxiliary spans and charging spans; the refining spans, converter spans, converter auxiliary spans and charging spans are arranged in parallel in sequence; the crossing rails are arranged perpendicular to the refining spans, converter spans, converter auxiliary spans and charging spans.

[0024] The ladle baking system is arranged near the refining span; the iron ladle baking system is arranged near the charging span.

[0025] The steel ladle baking system and the iron ladle baking system are distributed at both ends of the crossing track.

[0026] The knotting system uses an overhead crane system between converter spans, and the overhead crane system can be used for knotting the liquid metal ladle and lifting the RH tank body and LF furnace cover.

[0027] A method for using the repair kit system for cold repair of a span-type liquid metal ladle is characterized in that the method comprises the following steps:

[0028] Step 1: Determine the type of liquid metal package;

[0029] Step 2: Place the cold repair liquid metal package of the refractory lining to be tied on the cross-car;

[0030] Step 3: Drive the cross-car carrying the cold repair liquid metal ladle with the refractory lining to be knotted into the area where the knotting system is located; perform the refractory lining knotting operation on the liquid metal ladle to be cold repaired through the knotting system;

[0031] Step 4: After step 3 is completed, the knotted liquid metal bag on the cross-span vehicle is lowered to allow the newly knotted refractory material to cure and solidify; then a cured and solidified liquid metal bag is lifted and transported to the cross-span vehicle;

[0032] Step 5: After step 4 is completed, the liquid metal package that has been cured and demoulded on the span vehicle is moved to the area where the masonry system is located to carry out the working lining construction;

[0033] Step 6: After step 5 is completed, the liquid metal ladle is moved to the steel ladle baking system or the iron ladle baking system through a cross-car to carry out the liquid metal ladle baking operation;

[0034] Step 7: After step 6 is completed, the liquid metal package that has passed the baking is hoisted to the refining bay or charging bay for use;

[0035] Step 8: After step 7 is completed, the cold repair operation of one liquid metal bag is completed. If other liquid metal bags need cold repair, repeat the above steps 1-7.

[0036] The advantages of the present invention are:

[0037] The invention discloses a repair kit system for cold repair of a span-type liquid metal ladle and a use method thereof.

[0038] The present invention uses the ingenious design of a common knotting for the lining of the straddle-car type steel ladle and the iron ladle, as well as the original layout mode of integrated use of the straddle system, knotting system, masonry system and baking system, to create a high-efficiency cold repair ladle system and its use method that can utilize a set of knotting systems for both the steel ladle and the iron ladle.

[0039] Through the design and layout of a common knotting system for the linings of the span-type steel and iron ladles, not only has the industry's difficult problem of knotting the linings of the steel and iron ladles with only the "same set of knotting membranes" been overcome; but also while simultaneously saving investment in equipment and spare parts, significantly reducing the floor space of the "entire steel or iron ladle cold repair area", and making full use of the "idle area in other plant spans", the turnover operation of the steel and iron ladles back and forth between the spans has achieved "extreme efficiency"; it has also further promoted the "system optimization" of the overall process layout of the entire steel plant.

[0040] At the same time, through the innovative design of high efficiency such as the original arrangement of the knotting system, full use is made of the large-tonnage overhead crane system with the lowest utilization rate in the factory area, achieving "low cost" in production operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The following is a brief description of the contents and symbols in the drawings of the present invention:

[0042] Figure 1 This is the plant layout diagram of the present invention.

[0043] Figure 2 It is a plan layout diagram of the knotting system in the present invention.

[0044] Figure 3 It is a schematic structural diagram of the steel ladle in the present invention when knotted using a knotted membrane.

[0045] Figure 4 This is a schematic diagram of the structure of the iron ladle in the present invention when knotted using a knotted membrane.

[0046] Figure 5 It is a schematic diagram of the elevation layout of the factory workstation span in the present invention.

[0047] The marks in the above figure are:

[0048] 1. Over-span system, 2-1. Knotting system, 3. Masonry system, 401 baking system, 5. Feeding span, 6. Converter auxiliary span, 7. Converter span, 8. Refining span. DETAILED DESCRIPTION

[0049] The specific implementation of the present invention will be further explained in detail below by describing the best embodiment with reference to the accompanying drawings.

[0050] A cross-span repair system for cold repair of a liquid metal ladle is provided. The repair system is arranged within a plant workstation span. Generally, the repair system is arranged at the edge of the plant workstation span. The main requirement is that the repair system be arranged at a location within the plant workstation span that is most conducive to the smooth operation of the smelting process and suitable for efficient turnover of the liquid metal ladle. The repair system includes a cross-span system 1, a knotting system 2-1, a masonry system 3, and a baking system 401. Specifically, the repair system includes a cross-span system for carrying and transporting the liquid metal ladle, a knotting system spanning the cross-span system, a masonry system surrounding the cross-span system, and a baking system. The over-span system 1 includes an over-span track 11, on which is provided an over-span car 12 for loading liquid metal bags to be cold-repaired or transported; the knotting system is used to perform knotting operations on the liquid metal bags to be cold-repaired on the over-span car; the masonry system is used to perform working lining construction on the liquid metal bags to be cold-repaired; the baking system is used to perform baking operations on the liquid metal bags after the masonry is completed; the plant workstation span includes at least one workstation span; the plant workstation span contains at least one overhead crane system; the knotting system is arranged in the workstation span with the lowest utilization rate of the overhead crane system among the plant workstation spans.

[0051] The present invention can realize high-efficiency cold repair operation of liquid metal ladle through the coordinated use of the span system 1, the knotting system 2-1, the masonry system 3 and the baking system 401; through the multifunctional setting of the span system 1, it can greatly reduce the floor space of the "whole steel ladle or iron ladle cold repair area" and make full use of the "idle area in other spans of the factory building", and also realize "extreme efficiency" in the turnover operation of the steel ladle and the iron ladle to and from each span; at the same time, through the original arrangement of the knotting system 2-1, the overhead crane system 9 with the lowest utilization rate in the factory area is also fully utilized, thereby achieving "low cost" in production operation.

[0052] The present invention uses the ingenious design of a shared knotting for the inner lining of the straddle-type steel ladle 102 and the iron ladle 101, as well as an original layout mode of integrated use of the straddle system, knotting system, masonry system and baking system, to create a high-efficiency cold repair ladle system and a method of using the system, which can utilize a set of knotting systems for both the steel ladle 102 and the iron ladle 101.

[0053] Through the design and layout of a shared knotting system for the inner linings of the span-type steel ladle 102 and the iron ladle 101, not only has the industry's difficult problem of knotting the inner linings of the steel and iron ladles only with the "same set of knotting membranes 2-11" been overcome; but also while simultaneously saving investment in equipment and spare parts, significantly reducing the floor space of the "entire cold repair area of ​​the steel ladle 102 or the iron ladle 101", and making full use of the "idle area in other spans of the plant", the turnover operation of the steel ladle 102 and the iron ladle 101 back and forth between the spans has achieved "extreme efficiency"; it has also further promoted the "system optimization" of the overall process layout of the entire steel plant.

[0054] At the same time, through the innovative design of high efficiency such as the original arrangement of the knotting system, full use is made of the large-tonnage overhead crane system with the lowest utilization rate in the factory area, achieving "low cost" in production operations.

[0055] In the present invention, the liquid metal ladle is a steel ladle 102 or an iron ladle 101; and the steel ladle 102 and the iron ladle 101 are required to share a knotting system 2-1; based on this, it can be known that the ladle repair system disclosed in the present invention can be applied to the cold repair operation of the steel ladle 102 and the iron ladle 101, and the steel ladle 102 and the iron ladle 101 are required to share a knotting system 2-1; the investment cost of the knotting system 2-1 can be greatly reduced, and at the same time; by unifying the size of the steel shell of the steel ladle 102 and the iron ladle 101 and making it able to meet the requirements of various processes in the steel plant, the "refractory material knotting" of the inner lining of the steel ladle 102 and the iron ladle 101 can be completed by only the same "knotting membrane 2-11", while saving equipment and spare parts investment and greatly reducing the floor area occupied by knotting construction.

[0056] The cross-type liquid metal ladle cold repair system disclosed in the present invention is mainly based on the optimized design of the existing factory workshop.

[0057] The repair ladle system disclosed in the present invention is arranged in the most favorable position in the plant workstation span for the smooth progress of the smelting process and the efficient turnover of the liquid metal ladle; the purpose is to enable the liquid metal ladle after the cold repair to be lifted more quickly to the required workstation span.

[0058] Based on the above design, the existing span overhead travelling crane system 9 can be used to implement the knotting operation of the liquid metal package by the knotting system 2 - 1 .

[0059] Specifically, the bag repair system in the present invention includes a span system 1 that is compatible with the carrying and transportation of different types of liquid metal bags such as steel bags 102 or iron bags 101, a knotting system 2-1 across the span line, a masonry system 3 near the span system and a baking system 401; the knotting system 2-1 is used to perform knotting operations on the liquid metal bag to be cold-repaired on the span vehicle 12; the masonry system 3 is used to carry out working lining construction on the knotted liquid metal bag to be cold-repaired; the specific masonry system is used for subsequent working lining construction after knotting the refractory lining of the liquid metal bag to be cold-repaired; the baking system 401 is used to carry out baking operations on the liquid metal bag after the masonry is completed; different types of baking systems are required to be used for baking operations on different types of liquid metal bags after the masonry is completed; and the multifunctional span system 1 is also suitable for span transportation of liquid metal bags between factories.

[0060] In addition, the over-span system 1 in the present invention includes an over-span track 11, on which is provided an over-span vehicle 12 for loading liquid metal ladles to be cold-repaired or transported; the over-span track 11 is laid on the factory floor; the over-span vehicle 12 is provided on the over-span track 11, and the over-span vehicle 12 is required to be able to operate autonomously on the over-span track 11.

[0061] At the same time, in the present invention, the factory workstation span includes at least one workstation span; the factory workstation span includes at least one overhead crane system 9; the design number of specific workstation spans can be selected according to needs, and whether an overhead crane system 9 needs to be set up in each workstation span can be selected according to needs.

[0062] At the same time, the knotting system 2-1 described in the present invention is arranged in the workstation span with the lowest utilization rate of the overhead crane system 9 in the middle of the plant workstation span; such an arrangement, while achieving the reduction of overhead crane investment and crane operation interference in the "entire steel ladle 102 and iron ladle 101 cold repair area" to meet the needs of refractory material knotting construction, can also enable the steel ladle 102 and iron ladle 101 refractory material knotting construction to fully utilize the "overhead crane with low operating rate in the other span", thereby achieving "low cost" in production operations.

[0063] Furthermore, the liquid metal ladle described in the present invention is divided into a steel ladle 102 and an iron ladle 101; and the steel ladle 102 and the iron ladle 101 are required to share a knotting system 2-1. Based on this, it can be known that the ladle repair system disclosed in the present invention can be applied to the cold repair operation of the steel ladle 102 and the iron ladle 101, and the steel ladle 102 and the iron ladle 101 are required to share a knotting system 2-1; the investment cost of the knotting system 2-1 can be reduced; at the same time, by unifying the size of the steel shell of the steel ladle 102 and the iron ladle 101 and making it able to meet the requirements of various processes in the steel plant, the "refractory material knotting" of the inner lining of the steel ladle 102 and the iron ladle 101 can be completed by only the same "knotting membrane 2-11", while saving equipment and spare parts investment and greatly reducing the floor area occupied by knotting construction.

[0064] In the present invention, it is required that the liquid metal ladle can be a steel ladle 102 or an iron ladle 101, etc.; and the main dimensions of the steel shell cylinder and the ladle seat of different types of liquid metal ladle such as the steel ladle 102 and the iron ladle 101 need to be designed to be consistent to ensure that the lining knotting work of different types of liquid metal ladle can be completed by using one cross-car and a common set of "lining knotting membrane 2-11".

[0065] Furthermore, the baking system 401 in the present invention includes a steel ladle baking system 4 and an iron ladle baking system 42; based on the above design, the present invention greatly facilitates the transportation operation when baking the built steel ladle 102 and the iron ladle 101.

[0066] In addition, in the present invention, the ladle baking system 4 is used to perform baking operations on the completed steel ladle 102; the ladle baking system 4 includes at least one ladle baker 41; the iron ladle baking system 42 is used to perform baking operations on the completed iron ladle 101; the iron ladle baking system 42 includes at least one iron ladle baker 421; based on the above design, the baking operation of the built steel ladle 102 or the iron ladle 101 can be realized.

[0067] Furthermore, in the present invention, the ladle baking system 4 is arranged near the refining span 8, which facilitates the repaired steel ladle 102 to quickly enter the refining span 8 for use, and the iron ladle baking system 42 is arranged near the charging span 5, which facilitates the repaired iron ladle 101 to quickly enter the charging span 5 for use.

[0068] Specifically, in order to achieve the purpose of being put into use efficiently and nearby, the ladle baking system and the iron ladle baking system are respectively arranged in the corresponding workstation spans at both ends of the cross-span track; they can also be arranged in other workstation spans that are suitable for arranging the baking system and are passed by the cross-span track to make full use of the corresponding space.

[0069] Furthermore, the knotting system 2-1 in the present invention includes knotting construction equipment, a knotting construction area 2, a knotting membrane storage area 22 and a rotary distributor storage area 21 across the over-span track; the knotting membrane storage area 22 and the rotary distributor storage area 21 are distributed at positions around the over-span track 11; through the design of the above-mentioned knotting system 2-1, it is convenient to cooperate with the over-span system 1 to realize the knotting operation of the liquid metal package.

[0070] The core of the knotting system is the knotting construction area composed of the knotting construction equipment that spans the over-span track and the over-span vehicle below that can carry the molten steel ladle 102 or the molten iron ladle 101 and moves back and forth between the "knotting membrane hoisting in and out station" and the "knotting construction station" in the direction of movement of the over-span line; as well as the knotting membrane storage area and the rotary distributor storage area; the knotting membrane storage area and the rotary distributor storage area are distributed around the over-span track and are at a position that can be lifted to by the overhead crane system.

[0071] Furthermore, in the present invention, the plant workstation spans include the refining span 8, the converter span 7, the converter auxiliary span 6 and the charging span 5; the refining span 8, the converter span 7, the converter auxiliary span 6 and the charging span 5 are arranged in parallel in sequence; the crossing track 11 is arranged perpendicular to the refining span 8, the converter span 7, the converter auxiliary span 6 and the charging span 5; in the present invention, the crossing track 11 is arranged at the ends of the refining span 8, the converter span 7, the converter auxiliary span 6 and the charging span 5. Based on this design, the liquid metal package to be cold-repaired or the liquid metal package that has been repaired is facilitated to efficiently reciprocate in the refining span 8, the converter span 7, the converter auxiliary span 6 and the charging span 5.

[0072] Furthermore, in the present invention, the knotting system 2-1 uses the overhead crane system 9 of the converter span 7, and the overhead crane system 9 can be used for the knotting operation of the liquid metal bag by the knotting system 2-1 and for lifting the RH tank body and LF furnace cover; based on this design, the overhead crane system 9 of the span can realize the lifting operation of the RH tank body and LF furnace cover for maintenance, and at the same time, the overhead crane system 9 can also realize the lifting of the knotted membrane 2-11 into and out of the liquid metal bag knotting construction area 2.

[0073] The knotting system described in the present invention makes full use of the overhead crane system between the converter spans, which is mainly used for lifting RH tank replacement and LF furnace cover maintenance, and has a low operating rate. The overhead crane system can not only lift the RH tank and LF furnace cover, but also can be fully used for the knotting system to perform knotting operations on the liquid metal bag. Based on this, the present invention can significantly improve the utilization rate of the overhead crane system through the above settings.

[0074] A method for using a repair kit system for cold repair of a span-type liquid metal ladle, the method comprising the following steps:

[0075] Step 1: Determine the type of liquid metal package;

[0076] Step 2: Place the cold repair liquid metal package of the refractory lining to be tied on the cross-car;

[0077] Step 3: Drive the cross-car carrying the cold repair liquid metal ladle with the refractory lining to be knotted into the area where the knotting system is located; perform the refractory lining knotting operation on the liquid metal ladle to be cold repaired through the knotting system;

[0078] Step 4: After step 3 is completed, the knotted liquid metal bag on the cross-span vehicle is lowered to allow the newly knotted refractory material to cure and solidify; then a cured and solidified liquid metal bag is lifted and transported to the cross-span vehicle;

[0079] Step 5: After step 4 is completed, the cross-span vehicle is driven to the "knotting membrane hoisting in and out workstation" and the demoulding is completed by the overhead crane. Then the cross-span vehicle moves the liquid metal package to the area of ​​the masonry system workstation span to carry out the working lining construction;

[0080] Step 6: After step 5 is completed, the liquid metal ladle is moved to the steel ladle baking system or the iron ladle baking system through a cross-car to carry out the liquid metal ladle baking operation;

[0081] Step 7: After step 6 is completed, the liquid metal package that has passed the baking is hoisted to the nearest refining bay or charging bay for efficient use;

[0082] Step 8: After step 7 is completed, the cold repair operation of one liquid metal bag is completed. If other liquid metal bags need cold repair, repeat the above steps 1-7.

[0083] Based on the above operations, extremely efficient cold repair operations can be achieved for different types of liquid metal packages.

[0084] When implementing it, the specific steps are as follows:

[0085] Step 1: Determine the type of liquid metal package;

[0086] Step 2: Place the cold repair liquid metal package of the refractory lining to be tied on the cross-car;

[0087] Step 3: The span car carrying the molten steel ladle 102 or the molten iron ladle 101 is moved to the "knotting membrane hoisting in and out station" located at the knotting construction equipment across the span track, and the knotted membrane is hoisted into the liquid metal ladle using an overhead crane with low converter span utilization, and then hoisted onto the rotary distributor 21-1, and then driven to the "knotting construction station"; the refractory lining of the liquid metal ladle to be cold-repaired is knotted using the knotting system;

[0088] specific:

[0089] The liquid metal bag to be cold-repaired is first driven to the "knotting membrane hoisting in and out station" by a cross-car, and then the knotted membrane 2-11 is hoisted into the liquid metal bag and positioned properly by a converter span crane, and then the rotary distributor 21-1 is hoisted above the membrane and fixed; then the cross-car drives to the nearby "knotting construction station" to complete the knotting work, and then drives to the "knotting membrane hoisting in and out station", and then the converter span crane with low utilization rate is used to first lower the rotary distributor 21-1, and then the cross-car drives out of the cold-repair knotting system;

[0090] Step 4: After step 3 is completed, the knotted liquid metal package on the span car is hoisted off the span car; the knotted refractory material is allowed to undergo necessary "curing and solidification"; the multifunctional span car can now be used for other functions such as transporting the liquid metal package between spans;

[0091] Step 5: After step 4 is completed, the liquid metal bag of the previous knotted lining that has been cured and solidified is hoisted onto the cross-car and driven to the "knotted membrane hoisting in and out station". The knotted membrane is first hoisted out using the overhead crane with low utilization rate of the converter span, and the liquid metal bag that has been demoulded from the cross-car is moved to the span where the masonry system is located, and is hoisted by the overhead crane to the waiting area for the working lining; then the working lining is laid;

[0092] Step 6: After step 5 is completed, the liquid metal ladle after masonry is moved to the steel ladle baking system or the iron ladle baking system by a cross-car to carry out the liquid metal ladle baking operation;

[0093] Step 7: After step 6 is completed, the molten steel or iron ladle 101 that has passed the baking process is hoisted and transported to the nearest refining bay or charging bay for use;

[0094] Step 8: After step 7 is completed, the cold repair operation of one molten steel or molten iron ladle 101 is completed. If other liquid metal ladles need cold repair, repeat the above steps 1-7.

[0095] specific:

[0096] The present invention discloses a cross-span type liquid metal ladle cold repair bag system, which mainly includes a cross-span system 1, a knotting system 2-1, a masonry system 3 and a baking system 401; the cross-span system 1 includes a cross-span track 11, and a cross-span vehicle 12 for loading the liquid metal ladle to be cold repaired is provided on the cross-span track 11; the knotting system 2-1 is used to perform a knotting operation on the liquid metal ladle to be cold repaired on the cross-span vehicle 12; the masonry system 3 is used to perform a working lining masonry on the knotted liquid metal ladle to be cold repaired; the baking system 401 is used to perform a baking operation on the liquid metal ladle after the masonry is completed; at the same time, when in use, the knotting system 2-1 is required to cooperate with the overhead crane system 9 with the lowest usage rate among the factory workstation spans.

[0097] In addition, in the present invention, the sizes of the steel shell barrels of the steel ladle 102 and the iron ladle 101 are uniformly and innovatively designed so as to meet the requirements of various processes in the steel plant.

[0098] Based on the premise that the steel shell barrel sizes of the steel ladle 102 and the iron ladle 101 are consistent, it is only necessary to design the same "knotting membrane 2-11" to complete the "refractory material knotting" work of the inner lining of the steel ladle 102 and the iron ladle 101.

[0099] In the present invention, the knotting system 2 - 1 is arranged on the span system 1 , and the “refractory knotting” construction operation of the steel ladle 102 and the iron ladle 101 is arranged on the span system 1 .

[0100] The unique design of arranging the "refractory knotting" construction equipment of the steel ladle 102 and the iron ladle 101 in the "plant span where the overhead crane is available and the operation rate of the overhead crane is not high" is adopted.

[0101] The cross-type liquid metal ladle cold repair system disclosed in the present invention can be used for common knotting of the linings of the steel ladle 102 and the iron ladle 101.

[0102] First, by unifying the dimensions of the steel shells of the steel ladle 102 and the iron ladle 101 and adopting an innovative design that enables them to meet the requirements of various processes in the steel plant, the "knotting of refractory materials" in the linings of the steel ladle 102 and the iron ladle 101 can be completed with only the same "knotting membrane", which saves investment in equipment and spare parts and greatly reduces the floor space occupied by knotting construction.

[0103] Secondly, by arranging the "refractory knotting" construction operation of the steel ladle 102 and the iron ladle 101 on the "liquid metal ladle car and the crossing line that can pass through the spans of each plant in the steelmaking area", the high-efficiency design achieves a significant reduction in the floor space of the "entire steel ladle 102 and iron ladle 101 cold repair area" and makes full use of the "idle area in other plant spans". At the same time, the turnover operation of the steel ladle 102 and the iron ladle 101 to and from each span is made "extremely efficient".

[0104] Furthermore, through the unique design of arranging the "refractory knotting" construction equipment of the steel ladle 102 and the iron ladle 101 in the "plant span where the overhead crane is available and the operation rate of the overhead crane is not high", while reducing the overhead crane investment and crane operation interference for the "entire steel ladle 102 and the iron ladle 101 cold repair area" to meet the refractory knotting construction, the steel ladle 102 and the iron ladle 101 refractory knotting construction can also make full use of the "overhead crane in the other span with a low operation rate", thereby achieving "low cost" in production operations.

[0105] Therefore, the present invention not only achieves "system optimization" of the overall process layout of a newly built steel plant, but also creates the prerequisite for "extreme efficiency + low cost" in the production and operation of the entire steel plant.

[0106] The present invention has carried out a systematic and original design for the high-efficiency "refractory knotting" of the lining of the steel ladle 102 and the iron ladle 101, the layout mode of the cold repair area and the equipment configuration. It not only solves the problems of the "whole steel ladle 102 and iron ladle 101 cold repair area" with small footprint and unreasonable layout in the newly built steel plant; it also makes full use of the "idle area in other plant spans" to successfully realize the "system optimization" of the overall process layout of the steel plant; it also creates the prerequisites for the "extreme efficiency + low cost" of the production operation of the steel plant, with significant comprehensive benefits.

[0107] The original design of the overhead crane system 9 of the present invention is mainly used for lifting the RH tank body and LF furnace cover for maintenance (the operating rate is not high).

[0108] In the present invention, by limiting the steel ladle 102 and the iron ladle 101, the two tend to be designed in a unified manner; on this basis, according to the different requirements of the use environment of the steel ladle 102 and the iron ladle 101 in various processes of the steel plant, the dimensions of the ladle seat, ladle mouth, etc. are appropriately designed.

[0109] Based on the premise that the steel shell barrel size of the steel ladle 102 and the iron ladle 101 are consistent, and according to process requirements, a "knotting membrane" that can be shared by the steel ladle 102 and the iron ladle 101 is designed.

[0110] In accordance with the principles of "system optimization" and "optimization" of land use in the overall process layout of the new steel plant.

[0111] The unique arrangement method in which the "refractory knotting" operations for the lining of the steel ladle 102 and the iron ladle 101 are carried out on the knotting liquid metal ladle car and the span-crossing line that pass through the spans of each plant building in the steelmaking area not only solves the problems of the "small footprint and unreasonable layout of the entire steel ladle 102 and iron ladle 101 cold repair area"; it also makes full use of the "idle area in other plant spans"; it also optimizes the turnover operation of the steel ladle 102 and the iron ladle 101 to and from each span to achieve "extreme efficiency".

[0112] In accordance with the principles of "system optimization" and "low-cost" production operations for the overall process layout of the new steel mill, the unique design of locating the "refractory knotting" construction equipment for ladles 102 and 101 within a span of the plant where a crane is available and the crane's operating rate is low, reduces the "crane investment and interference with crane operations" required for refractory knotting construction in the "entire cold repair area of ​​ladles 102 and 101." This also allows the refractory knotting construction of ladles 102 and 101 to fully utilize the "crane in the other span with a low operating rate," achieving "low-cost" production operations for the steel mill.

[0113] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A cross-type liquid metal ladle cold repair system, characterized in that: The repair kit system is arranged within the workstation span of the factory area; The liquid metal ladle is a molten steel ladle or a molten iron ladle; the molten steel ladle or the molten iron ladle both comprise a steel shell barrel; The steel shells of the ladles or iron ladles are of the same size; The repair package system includes a span system for carrying and transporting the liquid metal package, a knotting system spanning the span system, a masonry system around the span system, and a baking system; The cross-over system includes a cross-over track, on which a cross-over vehicle is provided for loading liquid metal ladles to be cold-repaired or transported; The knotting system is used to perform knotting operations on the liquid metal ladle to be cold-repaired on the cross-car; the knotting system is required to be able to complete the knotting operation of the refractory material in the steel ladle or the iron ladle using a knotting membrane; The masonry system is used for carrying out working lining construction of a liquid metal ladle to be cold-repaired; The baking system is used to bake the liquid metal bag after the masonry is completed; The plant workstation span includes at least one workstation span; the plant workstation span includes at least one overhead crane system; The knotting system is arranged in the workstation span with the lowest utilization rate of the overhead crane system among the workstation spans in the factory area.

2. A cross-type liquid metal ladle cold repair system according to claim 1, characterized in that: The baking system includes a ladle baking system and an iron ladle baking system; the ladle baking system is used to bake the completed molten steel ladle; the ladle baking system includes at least one ladle baker.

3. The cross-type liquid metal ladle cold repair system according to claim 2, characterized in that: The ladle baking system is used to bake the molten iron ladle after it is built; the ladle baking system includes at least one ladle baker.

4. The repair kit system for cold repair of a span-type liquid metal ladle according to claim 1, characterized in that: The knotting system includes knotting construction equipment, a knotting construction area, a knotting membrane storage area and a rotary distributor storage area that span the cross-span track; the knotting membrane storage area and the rotary distributor storage area are distributed at positions around the cross-span track.

5. The repair kit system for cold repair of a span-type liquid metal ladle according to claim 1, characterized in that: The plant workstation spans include refining spans, converter spans, converter auxiliary spans and charging spans; the refining spans, converter spans, converter auxiliary spans and charging spans are arranged in parallel in sequence; the crossing rails are arranged perpendicular to the refining spans, converter spans, converter auxiliary spans and charging spans.

6. The cross-type liquid metal ladle cold repair system according to claim 4, characterized in that: The ladle baking system is arranged near the refining span; the iron ladle baking system is arranged near the charging span.

7. The cross-type liquid metal ladle cold repair system according to claim 2, characterized in that: The steel ladle baking system and the iron ladle baking system are distributed at both ends of the cross-span track.

8. The repair kit system for cold repair of a span-type liquid metal ladle according to claim 4, characterized in that: The knotting system uses an overhead crane system between converter spans, and the overhead crane system can be used for knotting the liquid metal ladle and lifting the RH tank body and LF furnace cover.

9. A method for using the cross-type liquid metal ladle cold repair system according to any one of claims 1 to 7, characterized in that: The method of use comprises the following steps: Step 1: Determine the type of liquid metal package; Step 2: Place the cold repair liquid metal package of the refractory lining to be tied on the cross-car; Step 3: Drive the cross-car carrying the cold repair liquid metal ladle with the refractory lining to be knotted into the area where the knotting system is located; perform the refractory lining knotting operation on the liquid metal ladle to be cold repaired through the knotting system; Step 4: After step 3 is completed, the knotted liquid metal bag on the cross-span vehicle is lowered to allow the newly knotted refractory material to cure and solidify; then a cured and solidified liquid metal bag is lifted and transported to the cross-span vehicle; Step 5: After step 4 is completed, the liquid metal package that has been cured and demoulded on the span vehicle is moved to the area where the masonry system is located to carry out the working lining construction; Step 6: After step 5 is completed, the liquid metal ladle is moved to the steel ladle baking system or the iron ladle baking system through a cross-car to carry out the liquid metal ladle baking operation; Step 7: After step 6 is completed, the liquid metal package that has passed the baking is hoisted to the refining bay or charging bay for use; Step 8: After step 7 is completed, the cold repair operation of one liquid metal bag is completed. If other liquid metal bags need cold repair, repeat the above steps 1-7.

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