CN115156494A - A system and method for unloading and hot feeding of a continuous casting machine - Google Patents

Abstract

The invention discloses a system and method for unloading and hot feeding of a continuous casting machine. The system for unloading and hot feeding of a continuous casting machine comprises a billet discharge roller table (1) and a hot feeding roller table (10) arranged in sequence. , the conveying direction of the blanking roller table (1) is from right to left, along the conveying direction of the blanking roller table (1), the blanking roller table (1) is sequentially provided with a fire cutting machine (2), a steel fishing machine The machine (4) and the secondary fire cutting machine (6) are provided with a casting billet collecting cooling bed (5) on the front side or the rear side of the steel fishing machine (4). The system and method for unloading and hot feeding of the continuous casting machine can realize the unloading and hot feeding of round billets and short fixed-length castings.

Description

A system and method for unloading and hot feeding of a continuous casting machine

technical field

The invention relates to the field of steelmaking and continuous casting in iron and steel production, in particular to a billet unloading and hot feeding system of a continuous casting machine, and a billet unloading and hot feeding method of a continuous casting machine.

Background technique

With the development of the iron and steel industry, in order to improve production efficiency, reduce environmental pollution and reduce production costs, the continuous casting billet hot charging process is an important measure for iron and steel enterprises to save energy, reduce consumption, and improve output and quality. Its realization is based on supporting equipment, and the premise of obtaining high-temperature defect-free billets is a comprehensive technology that integrates a series of technologies such as production planning, continuous casting production, billet transportation, hot rolling, and scheduling management. The round billet continuous casting billet is widely used in the production of seamless steel pipes. Since the conventional round billet continuous casting machine cannot provide short fixed length casting billets, it is necessary to use a hot saw for double-length cutting before rolling, and the long fixed length is cut. The slab is cut to a short fixed length, which affects the improvement of production efficiency.

SUMMARY OF THE INVENTION

In order to solve the problem that the billet unloading equipment of the continuous casting machine cannot cut short fixed-length casting billets, the present invention provides a billet unloading and hot feeding system and method for the continuous casting machine. And the method can realize the billet unloading and hot feeding of the round billet and the short fixed-length cast billet.

The technical scheme adopted by the present invention to solve its technical problems is:

A billet unloading and hot feeding system of a continuous casting machine comprises a billet unloading roller table and a hot feeding roll table which are arranged in sequence, the transporting direction of the billet rolling table is from right to left, and The billet roller table is provided with a primary fire cutting machine, a steel fishing machine and a secondary fire cutting machine in sequence, and a casting billet collecting cooling bed is arranged on the front side or the rear side of the steel fishing machine.

A billet unloading and hot feeding method of a continuous casting machine, wherein the billet unloading and hot feeding method of the continuous casting machine adopts the above-mentioned continuous casting machine billet unloading and hot feeding system;

The billet unloading of the continuous casting machine and the billet unloading roller table of the hot feeding system include a plurality of parallel unloading channels. The input ends are correspondingly connected, and the billet discharging and hot feeding system of the continuous casting machine also includes a billet changing roller table device. The roller changing device can move the round blanks on one blank outlet channel to another blank outlet channel;

The method for unloading and hot feeding of the continuous casting machine comprises the following steps:

When producing long fixed-length slabs, the slabs are transported from the billet discharge rollers to the primary fire cutting machine, and the primary fire cutting machine cuts the cast slabs into long fixed-length slabs, and the long fixed-length slabs are transported by the billet discharge rollers To the steel fishing machine, the steel fishing machine moves the long fixed-length casting billet to the casting billet collecting cooling bed;

When short-length cast slabs are produced and hot-delivered, the slabs are transported by the discharge rollers to the primary fire cutting machine, and the primary fire cutting machine cuts the cast slabs into long fixed-length slabs, and the long fixed-length slabs are discharged from the slabs. The roller table is transported to the secondary fire cutting machine, and the secondary fire cutting machine cuts the long fixed-length casting billets into short fixed-length casting billets, and the short fixed-length casting billets are transported from the billet discharge roller table to the billet to change the roll with the billet. At the position corresponding to the roller table, the billet changing table device moves the short length cast slab to a billet outlet channel corresponding to the hot feeding roller table, and the short length cast slab is transferred from the one billet outlet channel It is transported to the hot delivery roller table, and the short fixed-length slab is continuously transported by the hot delivery roller table.

The beneficial effect of the present invention is that the system and method for unloading and hot feeding of the continuous casting machine can realize the unloading and hot feeding of round billets and short fixed-length casting billets.

Description of drawings

The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

FIG. 1 is a schematic diagram of the billet unloading and hot feeding system of the continuous casting machine according to the present invention.

FIG. 2 is a schematic diagram of the position of the blank changing roller table device in FIG. 1 along the A direction.

The reference numerals are explained as follows:

1. Roller table for discharging billet; 2. Primary fire cutting machine; 3. Dummy bar storage device; 4. Steel fishing machine; 5. Billet collecting cooling bed; 6. Secondary fire cutting machine; 8. Billet changing roller table device; 9. Fixed baffle; 10. Hot conveying roller table;

101. The first blank outlet channel; 102, the second blank outlet channel; 103, the third blank outlet channel; 104, the fourth blank outlet channel; 105, the fifth blank outlet channel; 106, the sixth blank outlet channel; 107, blank outlet channel; 108, transfer section;

801, blank taking bracket; 802, rotating shaft; 803, driving mechanism;

8001, the first billet changing roller table device; 8002, the second billet changing roller table device; 8003, the third billet changing roller table device; 8004, the fourth billet changing roller table device; 8005, the fifth billet changing table device Change the roller table device.

Detailed ways

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

A billet discharge and hot delivery system of a continuous casting machine, comprising a billet roll table 1 and a hot feed roll table 10 arranged in sequence from right to left, the hot feed roll table 10 is located downstream of the billet roll table 1, and the billet roll table 1 is located downstream of the billet roll table. The conveying direction of the track 1 and the hot feeding roller track 10 is from right to left. Along the conveying direction of the blanking roller track 1, the blanking roller track 1 is provided with a primary fire cutting machine 2, a steel fishing machine 4 and a secondary fire The cutting machine 6 and the steel fishing machine 4 are provided with a slab collecting cooling bed 5 on the front side or the rear side, as shown in FIG. 1 .

In this embodiment, the blank discharge roller table 1 includes a plurality of blank discharge channels 107 arranged in parallel, and the blank discharge channel 107 and the hot feeding roller table 10 extend in the left and right directions. The output end of the blank passage 107 is connected to the input end of the hot conveying roller table 10 correspondingly.

For example, the blank discharge roller table 1 contains six blank discharge passages 107, which are the first blank discharge passage 101, the second blank discharge passage 102, the third blank discharge passage 103, the fourth blank discharge passage 107, and the fourth blank discharge passage 107 in order from the rear to the front. The blank outlet channel 104 , the fifth blank outlet channel 105 , the sixth blank outlet channel 106 , the output end of the third blank outlet channel 103 or the fourth blank outlet channel 104 correspond to the input end of the hot conveying roller table 10 connect.

In this embodiment, the billet ejecting and hot feeding system of the continuous casting machine further includes a billet changing roller table device 8. Along the left and right directions, the billet rolling table changing device 8 is located between the secondary fire cutting machine 6 and the hot feeding roller table. Between 10 and 10, the billet changing roller table device 8 can move the billet on one billet exit channel 107 to the other billet exit channel 107 .

In this embodiment, in the front-rear direction, the billet changing table device 8 is located between two adjacent discharge channels 107, and the billet changing table device 8 can move the billet on one billet discharge channel 107 to the adjacent one. on another blank outlet channel 107, as shown in FIG. 1 .

For example, the billet ejecting and hot feeding system of the continuous casting machine also includes five billet changing roller table devices 8, in the direction from the back to the front, the first billet changing roller table device 8001, the second billet changing table device 8001 in turn. The roller table device 8002, the third blank-changing roller table device 8003, the fourth blank-changing roller table device 8004 and the fifth blank-changing roller table device 8005, because the blank-changing roller table device 8 is located in two adjacent blanks Between the channels 107 , the number of blank changing roller table devices 8 is one less than the number of blank discharge channels 107 , as shown in FIG. 1 .

In this embodiment, the blank changing roller table device 8 includes a drive mechanism 803, a rotating shaft 802 and a plurality of blank taking brackets 801 connected in sequence. 801 has a Y-shaped structure, the rotating shaft 802 extends in the left-right direction, and the driving mechanism 803 can drive the blank-taking bracket 801 to swing back and forth around the rotating shaft 802, so as to realize the movement of the casting blank on one blank discharge channel 107 to the adjacent one. On the blank channel 107, the driving mechanism 803 includes a hydraulic cylinder, as shown in FIG. 2 .

In this embodiment, a transfer section 108 is provided at the exit of the blank discharge channel 107. In a set of corresponding blank roll changing device 8 and blank discharge channel 107, the blank roll change device 8 is located inside the transfer section 108, That is, in a set of blank changing roller table device 8 and blank outlet channel 107, the distance from blank roller changing table device 8 to hot feeding roller table 10 is smaller than the distance from blank outlet channel 107 to hot feeding roller table 10 along the front-rear direction.

For example, the first blank outlet channel 101 and the first blank roller changing device 8001 form the first group, the second blank outlet channel 102 and the second blank roller changing device 8002 form the second group, and the third blank outlet channel 8002 forms the second group. The blank passage 103 and the third blank changing table device 8003 form the third group, the fifth blank discharge passage 105 and the fourth blank rolling table device 8004 form the fourth group, and the sixth blank discharge passage 106 and the fifth blank passage The table blank changing roller table device 8005 forms the fifth group, as shown in Figure 1.

The first blank changing roller table device 8001 is located inside the transfer section 108 of the first blank outlet channel 101, the second blank roller changing table device 8002 is located at the inner side of the transfer section 108 of the second blank outlet channel 102, and the third The billet changing roller table device 8003 is located on the inner side of the transfer section 108 of the third blank discharge channel 103, the fourth blank rolling table device 8004 is located on the inner side of the transfer section 108 of the fifth blank discharging channel 105, and the fifth blank table The roller changing table device 8005 is located inside the transfer section 108 of the sixth blank discharge channel 106 .

In the present embodiment, the left end of the transfer section 108 is provided with a fixed baffle 9 , and the right end of the transfer section 108 is provided with a lift baffle 7 . The fixed baffle 9 can prevent the slab on the transfer section 108 from continuing to advance, and the lifting baffle 7 can rise and fall. When the elevating baffle 7 is raised, the elevating baffle 7 can block the slab on the billet discharge channel 107 from advancing to the transfer section. 108 on. When the elevating baffle 7 is lowered, the elevating baffle 7 cannot block the billet on the billet discharge channel 107 from advancing to the transfer section 108 .

In the blank discharge roller table 1, a blank discharge channel 107 correspondingly connected with the hot conveying roller table 10 is not provided with a fixed baffle 9, and only a lifting baffle 7 can be provided. For example, the fourth blank discharge channel 104 is correspondingly connected to the hot conveying roller table 10, the fourth blank discharge channel 104 is not provided with the fixed baffle 9, and the fourth blank discharge channel 104 may only be provided with a lifting baffle 7, as shown in Figure 1.

In this embodiment, two adjacent blank roll changing table devices 8 are arranged staggered in the left and right direction, and one blank rolling table device 8 near the blank outlet channel 107 in the middle of the two adjacent blank roll changing table devices 8 The distance to the secondary flame cutting machine 6 is greater than the distance from the other blank changing roller table device 8 to the secondary flame cutting machine 6 .

For example, the distance from the second billet changing roller table device 8002 to the secondary fire cutting machine 6 is greater than the distance from the first billet changing roller table device 8001 to the secondary fire cutting machine 6, and the third billet rolling table device 8003 to The distance from the secondary fire cutting machine 6 is greater than the distance from the second billet changing roller table device 8002 to the secondary fire cutting machine 6, and the distance from the third billet changing roller table device 8003 to the secondary fire cutting machine 6 is greater than that of the fourth one The distance from the billet changing roller table device 8004 to the secondary fire cutting machine 6, the distance from the fourth billet changing roller table device 8004 to the secondary fire cutting machine 6 is greater than the distance from the fifth billet changing roller table device 8005 to the secondary fire cutting machine 6 distances.

In this embodiment, along the left and right directions, a dummy bar storage device 3 is provided between the primary fire cutting machine 2 and the steel fishing machine 4 . Roller table 1, primary fire cutting machine 2, dummy bar storage device 3, steel fishing machine 4, billet collecting cooling bed 5, secondary fire cutting machine 6, lifting baffle 7, billet changing roller table device 8, Both the fixed baffle 9 and the heat-feeding roller table 10 can adopt existing technology products.

A method for unloading and hot feeding of a continuous casting machine will be introduced below. And the hot delivery method includes the following steps:

When producing long-length cast slabs, the slabs are transported from the billet discharge roller table 1 to the primary fire cutting machine 2, and the primary fire cutting machine 2 cuts the cast slabs into long fixed-length cast slabs. The roller table 1 is transported to the steel fishing machine 4, and the steel fishing machine 4 moves the long fixed-length casting billet to the casting billet collecting cooling bed 5;

The casting billet can be a round billet, and the diameter of the round billet is 200mm-350mm. The primary fire cutting machine 2 cuts the billet into a long fixed-length billet, and the length of the long fixed-length billet is 4.5m-350mm. 12m, the primary fire cutting machine 2 cuts the cast slab into a long fixed-length cast blank and transports it to the top of the steel fishing machine 4, the long fixed-length cast blank does not enter the secondary fire cutting machine 6, and the long fixed-length cast blank is drawn by the fishing machine 6. The steel machine 4 fishes the long fixed-length casting billets to the billet collecting cooling bed 5 one by one, this process is a conventional billet unloading process, and is also a backup measure for the present invention. offline.

When producing short-length cast slabs and hot-feeding, the slabs are transported from the billet discharge roller table 1 to the primary fire cutting machine 2, and the primary fire cutting machine 2 cuts the cast slabs into long fixed-length slabs. The long fixed-length slabs It is transported from the billet discharge roller table 1 to the secondary fire cutting machine 6, and the secondary fire cutting machine 6 cuts the long fixed-length casting billet into short fixed-length casting billets. 1 is transported to a position corresponding to the billet changing roller table device 8, and the billet changing roller table device 8 moves the short fixed-length cast billet to a billet outlet channel 107 corresponding to the hot conveying roller table 10. The fixed-length billets are conveyed to the hot delivery roller table 10 through the one billet discharge channel 107 , and the short-length billets are continuously transported by the hot delivery roller table 10 .

The length of the short fixed-length casting billet is 1.5m-3.6m. On a billet exit channel 107, the length of the transfer section 108 should be greater than 3.6m (such as 4 meters), that is, on a billet exit channel 107, the lifting baffle The distance between 7 and the fixed baffle 9 is greater than 3.6m (eg 4m). In a billet changing roller table device 8, the distance between two adjacent billet taking brackets 801 should be less than 1.5m (eg 1.25m).

The process of producing short-length cast slabs and hot feeding will be described in detail below by taking the first billet unloading channel 101 as an example.

The casting billet is transported to the primary fire cutting machine 2 through the first billet discharge channel 101, and the primary fire cutting machine 2 cuts the casting billet into a long fixed-length billet. The length of the long fixed-length casting billet is 4.5m-10.2m, so The long fixed-length cast billet is transported to the secondary fire cutting machine 6 by the first billet discharge channel 101, and the secondary fire cutting machine 6 cuts the long fixed-length cast billet into a short fixed-length cast billet, and the short fixed-length cast billet. The length of the blank is 1.5m-3.6m.

The lifting baffle 7 on the first billet unloading channel 101 is lowered, and the short fixed-length slab is transported from the first billet unloading channel 101 to the transfer section 108 of the first billet unloading channel 101 . The slab is in contact with the fixed baffle 9 on the first billet exit channel 101 , the first billet exit channel 101 stops running, and the first billet changing roller table device 8001 transfers the transfer section 108 of the first billet exit channel 101 The short length cast slab on the upper part moves to the second slab channel 102 .

The lifting baffle 7 on the second blank discharge channel 102 is lowered, and the short fixed-length slab is transported from the second blank discharge channel 102 to the transfer section 108 of the second blank discharge channel 102 . The casting billet is in contact with the fixed baffle 9 on the second billet exit channel 102 , the second billet exit channel 102 stops running, and the second billet changing roller table device 8002 transfers the transfer section 108 of the second billet exit channel 102 The short length cast slab on the upper part moves to the third slab discharge channel 103 .

The lifting baffle 7 on the third blank discharge channel 103 is lowered, and the short fixed-length slab is transported from the third blank discharge channel 103 to the transfer section 108 of the third blank discharge channel 103 . The billet is in contact with the fixed baffle 9 on the third billet exit channel 103 , the third billet exit channel 103 stops running, and the third billet changing roller table device 8003 transfers the transfer section 108 of the third billet exit channel 103 The short length cast slab on the upper part moves to the fourth slab discharging channel 104 .

The fourth billet discharge channel 104 is connected to the hot feeding roller table 10, and the fourth billet discharging channel 104 transports the short fixed-length cast slab to the hot feeding roller table 10, and the short fixed-length cast billet is transported by the hot feeding roller. Lane 10 continues to convey. The above-mentioned content may be referred to for the process of producing short-length cast slabs and hot-feeding the slabs from other slab discharging channels 107 .

In order to facilitate understanding and description, the present invention adopts an absolute positional relationship for expression. Unless otherwise specified, the orientation word "up" means a direction perpendicular to the paper surface of FIG. 1 and pointing to the outside of the paper surface, and the orientation word "down" Indicates the direction perpendicular to the paper surface of Figure 1 and pointing to the inside of the paper surface, "left" represents the left direction in Figure 1, the azimuth "right" represents the right direction in Figure 1, and the azimuth "front" represents Figure 1 The upper direction in the middle, the orientation word "rear" represents the lower direction in Fig. 1, the present invention adopts the viewing angle of the reader or user to describe, but the above orientation word cannot be understood or interpreted as being the protection scope of the present invention. limited.

The above descriptions are only specific embodiments of the present invention, and cannot limit the scope of implementation of the invention. Therefore, the replacement of equivalent components, or the equivalent changes and modifications made according to the scope of the patent protection of the present invention should still be covered by this patent. category. In addition, the technical features and technical features, technical features and technical solutions, technical solutions and technical solutions, and embodiments and embodiments in the present invention can be freely combined and used.

Claims (10)

1. A billet unloading and hot feeding system of a continuous casting machine, characterized in that the billet unloading and hot feeding system of the continuous casting machine comprises a billet unloading roller table (1) and a hot feeding roller table (10) arranged in sequence , The conveying direction of the blanking roller table (1) is from right to left, along the conveying direction of the blanking roller table (1), the blanking roller table (1) is sequentially provided with a fire cutting machine (2), a steel fishing machine The machine (4) and the secondary fire cutting machine (6) are provided with a casting billet collecting cooling bed (5) on the front side or the rear side of the steel fishing machine (4). 2. The billet unloading and hot feeding system of a continuous casting machine according to claim 1, characterized in that the billet unloading roller table (1) contains a plurality of parallel unloading passages (107), and along the front and rear directions, the billet unloading The output end of a blank outlet channel (107) in the middle of the roller table (1) is correspondingly connected with the input end of the hot conveying roller table (10). 3. The billet unloading and hot feeding system of the continuous casting machine according to claim 2, characterized in that, the billet unloading and hot feeding system of the continuous casting machine further comprises a billet changing roller table device (8) along the left and right directions , the billet changing roller table device (8) is located between the secondary fire cutting machine (6) and the hot feeding roller table (10). The blank moves to another blank outlet channel (107). 4. The billet unloading and hot feeding system of a continuous casting machine according to claim 3, characterized in that, along the front-rear direction, the billet changing roller table device (8) is located between two adjacent billet unloading passages (107) , the billet changing roller table device (8) can move the billet on one billet exit channel (107) to another adjacent billet exit channel (107). 5. The billet ejecting and hot feeding system of a continuous casting machine according to claim 4, characterized in that the billet changing table device (8) comprises a drive mechanism (803), a rotating shaft (802) and a plurality of sequentially connected drive mechanisms (803) A blank-taking support (801), a plurality of blank-taking supports (801) are arranged at intervals along the axial direction of the rotating shaft (802), the blank-taking support (801) has a Y-shaped structure, the rotating shaft (802) extends in the left-right direction, and the drive mechanism (803) can drive the blank taking bracket (801) to swing back and forth around the rotating shaft (802). 6. The billet unloading and hot feeding system of a continuous casting machine according to claim 4, characterized in that, a transfer section (108) is provided at the exit of the billet unloading channel (107), and a set of corresponding billet changing rollers In the device (8) and the blank discharge channel (107), the blank roller changing device (8) is located inside the transfer section (108). 7 . The blanking and hot feeding system of the continuous casting machine according to claim 6 , wherein the left end of the transfer section (108) is provided with a fixed baffle plate (9), and the right end of the transfer section (108) is provided with a lift baffle (7). 8. The system for unloading and hot feeding of a continuous casting machine according to claim 6, characterized in that, two adjacent billet changing roller table devices (8) are staggered along the left and right direction, and two adjacent billets are changed In the roller table device (8), the distance from one billet changing roll table device (8) near the middle of the billet outlet channel (107) to the secondary fire cutting machine (6) is greater than the distance from the other billet changing roll table device (8) to the second billet changing table device (8). The distance of the secondary fire cutting machine (6). 9. The blanking and hot feeding system of the continuous casting machine according to claim 1, characterized in that, along the left and right direction, a dummy bar is provided between the primary fire cutting machine (2) and the steel fishing machine (4) for storage device (3). 10. A method for unloading and hot feeding of a continuous casting machine, characterized in that the method for unloading and hot feeding of the continuous casting machine adopts the system for unloading and hot feeding of the continuous casting machine of claim 1; The billet unloading roller table (1) of the continuous casting machine and the hot feeding system includes a plurality of billet unloading channels (107) arranged in parallel, and along the front-rear direction, there is a billet unloading channel in the middle of the billet unloading roller table (1). The output end of (107) is correspondingly connected with the input end of the hot feeding roller table (10). The track device (8) is located between the secondary fire cutting machine (6) and the hot conveying roller track (10). on a blank outlet channel (107); The method for unloading and hot feeding of the continuous casting machine comprises the following steps: When producing long-length cast slabs, the slabs are transported from the billet discharge roller table (1) to the primary fire cutting machine (2), and the primary fire cutting machine (2) cuts the cast slabs into long fixed-length cast slabs. The cast billet is transported by the billet discharge roller table (1) to the steel fishing machine (4), and the steel fishing machine (4) moves the long fixed-length cast billet to the casting billet collection cooling bed (5); When producing short-length cast slabs and hot feeding, the slabs are transported from the billet discharge roller table (1) to the primary fire cutting machine (2), and the primary fire cutting machine (2) cuts the cast slabs into long fixed-length slabs, so The long fixed-length casting billet is transported to the secondary flame cutting machine (6) by the billet discharge roller table (1), and the secondary flame cutting machine (6) cuts the long fixed-length casting billet into short fixed-length casting billets, The short-length cast slab is transported by the billet discharge roller table (1) to a position corresponding to the billet changing roller table device (8), and the billet changing roller table device (8) moves the short-length cast slab to the position corresponding to the billet changing roller table device (8). On a billet discharge channel (107) corresponding to the hot feeding roller table (10), the short fixed-length slab is transported to the hot feeding roller table (10) from the one billet discharging channel (107). The fixed-length slab is continuously conveyed by the hot conveying roller table (10).

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