A continuous casting bloom and red delivery system and method

Abstract

The application discloses a continuous casting billet and red delivery system and method, and belongs to the field of steelmaking and continuous casting in steel production. In order to improve production efficiency, the continuous casting billet and red delivery system comprises a billet delivery roller way (1), the billet delivery direction of the billet delivery roller way (1) is a right-to-left direction, along the billet delivery direction of the billet delivery roller way (1), a first fire cutting machine (2), a second fire cutting machine (4), a slide rail (7) and a billet collecting device (8) are sequentially arranged on the billet delivery roller way (1), the slide rail (7) extends along the front-to-back direction, along the front-to-back direction, one end of the slide rail (7) is provided with a billet pushing machine (6), and the other end of the slide rail (7) is provided with the billet collecting device (8); the billet on the billet delivery roller way (1) can be transferred to the slide rail (7), and the billet pushing machine (6) can push the billet on the slide rail (7) into the billet collecting device (8). The continuous casting billet and red delivery system and method can directly produce short fixed-size billets in a continuous casting workshop, and improve the production efficiency of rolling.

Description

Technical Field

[0001] This invention relates to the field of continuous casting in steelmaking production, specifically a continuous casting billet unloading and hot-pressing system, or a continuous casting billet unloading and hot-pressing method. Background Technology

[0002] With the development of the steel industry, steel enterprises are taking steps to improve production efficiency, reduce environmental pollution, and lower production costs. Among these measures, the hot-charging process for continuously cast billets is a significant measure for steel enterprises to save energy, reduce consumption, and increase output and quality. Its implementation relies on supporting equipment and is premised on obtaining high-temperature, defect-free cast billets. It is a comprehensive technology integrating a series of technologies such as production planning, continuous casting production, billet conveying, hot rolling, and scheduling management.

[0003] Round billet continuous casting is widely used in the production of seamless steel pipes. Conventional round billet continuous casting machines use a single flame cutting machine to cut the billet into long, fixed-length round billets, and cannot provide short, fixed-length billets. Figure 1 As shown, the long, fixed-length round billets are then transported to the rolling mill by truck. Because the billets delivered by hot-rolled truck are too long, they need to be cut with a hot saw before rolling, i.e., the long, fixed-length round billets are cut into shorter, fixed-length round billets using a hot saw, which affects the improvement of production efficiency. Summary of the Invention

[0004] To improve production efficiency, the present invention provides a continuous casting billet output and hot-feeding system and method, which enables the continuous casting workshop to directly produce short-length billets, thereby improving the production efficiency of rolling.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A continuous casting billet discharge and hot-pressing system includes a billet discharge roller conveyor with a billet discharge direction from right to left. Along the billet discharge direction of the billet discharge roller conveyor, a primary hot-pressing machine, a secondary hot-pressing machine, a slide rail, and a steel-collecting machine are sequentially arranged on the billet discharge roller conveyor. The slide rail extends in a front-back direction, and a steel pusher is arranged at one end of the slide rail in the front-back direction, while a billet collecting device is arranged at the other end of the slide rail. The billet on the billet discharge roller conveyor can be transferred to the slide rail, and the steel pusher can push the billet on the slide rail into the billet collecting device.

[0007] A continuous casting billet unloading and hot-pressing method is provided, wherein the continuous casting billet unloading and hot-pressing method adopts the aforementioned continuous casting billet unloading and hot-pressing system; the billet collecting device includes a first billet collecting car and a second billet collecting car, the first billet collecting car being able to reciprocate between a billet receiving position and a first hoisting position, and the second billet collecting car being able to reciprocate between the billet receiving position and the second hoisting position; both the first billet collecting car and the second billet collecting car are equipped with billet collecting boxes, and the billet collecting boxes are detachably connected to both the first billet collecting car and the second billet collecting car.

[0008] The continuous casting billet delivery and hot-feeding method includes a short-length billet hot-feeding process, in which a primary hot-cutting machine cuts the original billet into a long-length billet, and a secondary hot-cutting machine cuts the long-length billet into a short-length billet; the short-length billet is moved onto a slide rail; the short-length billet hot-feeding process also includes the following steps:

[0009] Step 1a: The first billet collection car is located at the billet receiving position, the second billet collection car is located at the second hoisting position, and the steel pusher pushes the short fixed-length billet on the slide rail into the billet collection box of the first billet collection car.

[0010] Step 2a: The first billet collection car moves to the first hoisting position, and the overhead crane hoists the billet collection box on the first billet collection car to the billet transport vehicle. The second billet collection car moves to the billet receiving position.

[0011] Step 3a: The second billet collection car is located at the billet receiving position, the first billet collection car is located at the first hoisting position, and the steel pusher pushes the short fixed-length billet on the slide rail into the billet collection box of the second billet collection car.

[0012] Step 4a: The second billet collection car moves to the second hoisting position, and the overhead crane hoists the billet collection box on the second billet collection car to the billet transport vehicle. The first billet collection car moves to the billet receiving position.

[0013] Step 5a: Repeat steps 1a to 4a in sequence until all the short-length billets are transported out of the continuous casting billet delivery and hot conveying system.

[0014] The beneficial effects of this invention are: the continuous casting billet discharge and hot-feeding system and method enable the continuous casting workshop to directly produce short-length billets. Without secondary heating, the temperature of the billet before rolling is higher, which can increase the output of rolled products. The billet does not require secondary heating before rolling, thus improving the production efficiency of rolling. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0016] Figure 1 This is a top view schematic diagram of the existing continuous casting billet delivery and hot-pressing system.

[0017] Figure 2 This is a top view schematic diagram of the continuous casting billet discharge and hot-pressing system described in this invention.

[0018] Figure 3 This is a schematic diagram showing the first billet collection car located at the billet receiving position and the second billet collection car located at the second hoisting position.

[0019] Figure 4 This is a schematic diagram showing the first billet collection car located at the first hoisting position and the second billet collection car located at the second hoisting position.

[0020] Figure 5 This is a schematic diagram showing the first billet collection car located at the first hoisting position and the second billet collection car located at the billet receiving position.

[0021] Figure 6 This is a schematic diagram of the first billet collection vehicle and the billet collection box.

[0022] Figure 7 This is a schematic diagram of the connection between the first and second collection vehicle tracks.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1. Billet discharge roller conveyor; 2. Primary flame cutter; 3. Ingot bar storage device; 4. Secondary flame cutter; 5. Marking machine; 6. Steel pusher; 7. Slide rail; 8. Billet collection device; 9. Steel scooping machine; 10. Walking beam cooling bed;

[0025] 11. Billet exit roller flow;

[0026] 81. First billet collection car; 82. Second billet collection car; 83. Billet collection box; 84. Tractor track; 85. Billet receiving position; 86. First hoisting position; 87. Second hoisting position; 88. Parking position;

[0027] 841. First collection vehicle track; 842. Second collection vehicle track. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] A continuous casting billet discharge and hot-pressing system includes a billet discharge roller conveyor 1. The billet discharge direction A of the billet discharge roller conveyor 1 is from right to left. Along the billet discharge direction of the billet discharge roller conveyor 1, a primary hot-pressing machine 2, a secondary hot-pressing machine 4, a slide rail 7, and a steel-collecting machine 9 are sequentially arranged on the billet discharge roller conveyor 1. The slide rail 7 extends in a front-to-back direction. A steel pusher 6 is arranged at one end of the slide rail 7 in the front-to-back direction, and a billet collecting device 8 is arranged at the other end of the slide rail 7. The billet on the billet discharge roller conveyor 1 can be transferred to the slide rail 7, and the steel pusher 6 can push the billet on the slide rail 7 into the billet collecting device 8. Figure 2 As shown.

[0030] In this embodiment, the billet discharge roller conveyor 1 contains multiple (e.g., 6) billet discharge rollers 11, which are arranged at intervals along the front-to-back direction. The billet discharge roller conveyor 1 is also equipped with a spool storage device 3 and a marking machine 5. The spool storage device 3 is located between the primary heat cutter 2 and the secondary heat cutter 4, and the marking machine 5 is located between the secondary heat cutter 4 and the slide rail 7. The primary heat cutter 2, the spool storage device 3, the secondary heat cutter 4, and the marking machine 5 each correspond one-to-one with the billet discharge rollers 11, as shown below. Figure 2 As shown.

[0031] In this embodiment, multiple slide rails 7 are arranged parallel to each other in the left-right direction. The slide rails 7 can rise and fall. When the slide rail 7 is at its upper limit position, the upper end surface of the slide rail 7 is on the same horizontal plane as the conveying surface of the billet discharge roller 1. When the slide rail 7 is at its lower limit position, the upper end surface of the slide rail 7 is lower than the conveying surface of the billet discharge roller 1. A lifting baffle is provided on the left side of the slide rail 7. When the lifting baffle is at its upper limit position, the lifting baffle can prevent the billet of the billet discharge roller 1 from continuing to move to the left, thereby stopping the billet of the billet discharge roller 1 on the slide rail 7. When the lifting baffle is at its lower limit position, the lifting baffle cannot prevent the billet of the billet discharge roller 1 from continuing to move to the left.

[0032] In this embodiment, the billet collection device 8 includes a first billet collection cart 81 and a second billet collection cart 82. The first billet collection cart 81 can reciprocate between the billet receiving position 85 and the first hoisting position 86, and the second billet collection cart 82 can reciprocate between the billet receiving position 85 and the second hoisting position 87. The second hoisting position 87 is located to the left or right of the billet receiving position 85. In the front-to-back direction, the billet receiving position 85 is located between the first hoisting position 86 and the slide rail 7. For example, the billet receiving position 85 and the second hoisting position 87 are arranged side by side, and the slide rail 7, the billet receiving position 85, and the first hoisting position 86 are arranged sequentially from front to back. Figure 2 As shown.

[0033] In this embodiment, the billet collection device 8 includes multiple billet collection boxes 83, with more than three billet collection boxes 83. Both the first billet collection cart 81 and the second billet collection cart 82 are equipped with billet collection boxes 83, and the billet collection boxes 83 are detachably connected to both the first billet collection cart 81 and the second billet collection cart 82. Figure 6 As shown. The billet collection box 83 can be loaded onto a billet transport vehicle, and the billet collection box 83 can hold 20t-35t of billets. The upper end of the billet collection box 83 is in an open state. When the slide rail 7 is in the upper limit position, the upper end surface of the slide rail 7 is higher than the upper end surface of the billet collection box 83 on the first billet collection vehicle 81 and the second billet collection vehicle 82.

[0034] In this embodiment, the billet collection device 8 further includes a traveling track 84, which includes a first collection track 841 and a second collection track 842. The first collection track 841 extends in the front-to-back direction, and the second collection track 842 extends in the left-to-right direction. The first collection track 841 and the second collection track 842 intersect but are not connected. Figure 7 As shown. The first billet collection car 81 travels on the first collection car track 841, and the second billet collection car 82 travels on the second collection car track 842.

[0035] In this embodiment, the continuous casting billet unloading and hot-pressing system further includes a walking beam cooling bed 10 and an overhead crane. The walking beam cooling bed 10 is located in front of or behind the steel scooping machine 9; for example, the walking beam cooling bed 10 is located in front of the steel scooping machine 9. The overhead crane can lift the billets in the billet collection device 8 onto the billet transport vehicle, that is, the overhead crane can lift the billets in the billet collection boxes 83 on the first collection vehicle track 841 and the second collection vehicle track 842 onto the billet transport vehicle.

[0036] The following describes a continuous casting billet unloading and red-hot conveying method, which adopts the aforementioned continuous casting billet unloading and red-hot conveying system; the continuous casting billet unloading and red-hot conveying method includes a short-length billet red-hot conveying process and a long-length billet normal unloading process.

[0037] During the hot-feeding process of the short-length cast billet, the original cast billet moves from right to left on the billet exit roller conveyor 1. The primary hot-cutting machine 2 cuts the original cast billet into long-length cast billets, and then the secondary hot-cutting machine 4 cuts the long-length cast billets into short-length cast billets. The short-length cast billets are moved from the billet exit roller conveyor 1 to the slide rail 7. The hot-feeding process of the short-length cast billets includes the following steps:

[0038] Step 1a: The first billet collection car 81 is located at the billet receiving position 85, and the second billet collection car 82 is located at the second hoisting position 87, as follows. Figure 3 As shown, the steel pusher 6 pushes the short fixed-length billet on the slide rail 7 into the billet collection box 83 of the first billet collection car 81;

[0039] Step 2a: The first billet collection car 81 moves to the first hoisting position 86, as follows. Figure 4 As shown, the overhead crane lifts the billet collection box 83 (containing the short-length billets) from the first billet collection car 81 onto the billet transport vehicle. The billet transport vehicle is positioned at parking space 88. The second billet collection car 82 moves to the billet receiving position 85, as shown. Figure 5 As shown; the billet transport vehicle transports the billet collection box 83 from the continuous casting workshop to the rolling workshop, and then the billet transport vehicle takes the empty billet collection box 83 back to the continuous casting workshop for later use;

[0040] Step 3a: The second billet collection car 82 is located at the billet receiving position 85, and the first billet collection car 81 is located at the first hoisting position 86, as follows. Figure 5 As shown, the steel pusher 6 pushes the short fixed-length billet on the slide rail 7 into the billet collection box 83 of the second billet collection car 82;

[0041] Step 4a: The second billet collection car 82 moves to the second hoisting position 87, as follows. Figure 4 As shown, the overhead crane lifts the billet collection box 83 (containing the short-length billets) from the second billet collection car 82 onto the billet transport vehicle. The billet transport vehicle is located in parking space 88, and the first billet collection car 81 moves to the billet receiving position 85. Figure 3 As shown; the billet transport vehicle transports the billet collection box 83 from the continuous casting workshop to the rolling workshop, and then the billet transport vehicle takes the empty billet collection box 83 back to the continuous casting workshop for later use;

[0042] Step 5a: Repeat steps 1a to 4a sequentially until all the short-length slabs are transported out of the continuous casting billet delivery and hot-feeding system, that is, until all the short-length slabs are transported out of the continuous casting workshop. During the repetition of steps 1a to 4a, ensure that empty slab collection boxes 83 are installed on both the first slab collection car 81 and the second slab collection car 82 before receiving the short-length slabs on the receiving slide rail 7. The empty slab collection boxes 83 can be hoisted onto the first slab collection car 81 and the second slab collection car 82 by an overhead crane. The continuous casting workshop can have multiple empty slab collection boxes 83.

[0043] During the normal production process of long-length billets, the original billet moves from right to left on the billet exit roller conveyor 1. The primary heat cutter 2 cuts the original billet into long-length billets, and the billet exit roller conveyor 1 moves the billets from right to left. The long-length billets are moved to below the steel scooping machine 9. The process of hot-feeding the short-length billets also includes the following steps:

[0044] Step 1b: The steel scooping machine 9 scoops the long fixed-length cast billet onto the walking beam cooling bed 10.

[0045] In this embodiment, the original casting billet can be a round casting billet, the diameter of the cross section of the original casting billet can be 160mm-330mm, the length of the long fixed-length casting billet can be 6m-12m, and the length of the short fixed-length casting billet can be 1.4m-4.5m.

[0046] Furthermore, for ease of understanding and description, this invention uses absolute positional relationships for description. Unless otherwise specified, the directional term "above" indicates perpendicular to. Figure 1 The direction of the paper and the direction pointing outwards from the paper; the directional word "down" indicates perpendicular to the direction of the paper. Figure 1 The direction of the paper and pointing inwards; the directional word "left" indicates... Figure 1The left side of the direction, the directional word "right" indicates Figure 1 The right-hand direction in the text, the directional word "front" indicates Figure 1 The direction above, the directional word "back" indicates Figure 1 The direction is below the center. This invention is described from the perspective of a reader or user, but the above directional terms should not be understood or interpreted as limiting the scope of protection of this invention.

[0047] The above description is merely a specific embodiment of the present invention and should not be construed as limiting the scope of the invention. Therefore, any substitution of equivalent components or equivalent changes and modifications made within the scope of protection of this patent should still fall within the scope of this patent. Furthermore, the technical features, technical solutions, and embodiments of the present invention can be freely combined and used together.

Claims

1. A continuous casting bloom and red delivery system, characterised in that, The continuous casting bloom and red delivery system comprises a bloom roller way (1), the bloom direction of the bloom roller way (1) is the direction from right to left, along the bloom direction of the bloom roller way (1), a primary fire cutting machine (2), a secondary fire cutting machine (4), a slide rail (7) and a steel salvaging machine (9) are sequentially arranged on the bloom roller way (1), the slide rail (7) extends along the front and back direction, along the front and back direction, one end of the slide rail (7) is provided with a steel pushing machine (6), the other end of the slide rail (7) is provided with a bloom collecting device (8); the bloom on the bloom roller way (1) can be transferred to the slide rail (7), the steel pushing machine (6) can push the bloom on the slide rail (7) into the bloom collecting device (8); The primary fire cutting machine (2) can cut the original bloom into long fixed-size blooms, and the secondary fire cutting machine (4) can cut the long fixed-size blooms into short fixed-size blooms; A plurality of slide rails (7) are arranged in parallel and at intervals along the left and right directions, the slide rails (7) can be lifted and lowered, when the slide rails (7) are located at the upper limit position, the upper end surfaces of the slide rails (7) are located in the same horizontal plane as the conveying surface of the bloom roller way (1); when the slide rails (7) are located at the lower limit position, the upper end surfaces of the slide rails (7) are lower than the conveying surface of the bloom roller way (1); The bloom collecting device (8) comprises a first bloom collecting vehicle (81) and a second bloom collecting vehicle (82), the first bloom collecting vehicle (81) can reciprocate between a bloom receiving position (85) and a first hoisting position (86), and the second bloom collecting vehicle (82) can reciprocate between the bloom receiving position (85) and a second hoisting position (87); The second hoisting position (87) is located on the left side or the right side of the bloom receiving position (85), and along the front and back direction, the bloom receiving position (85) is located between the first hoisting position (86) and the slide rail (7); The first bloom collecting vehicle (81) and the second bloom collecting vehicle (82) are both provided with a bloom collecting box (83), and the bloom collecting box (83) is detachably connected with the first bloom collecting vehicle (81) and the second bloom collecting vehicle (82); The continuous casting bloom and red delivery system further comprises a crown block, the crown block can hoist the bloom collecting box (83) on the first bloom collecting vehicle (81) to a bloom transport vehicle, and the crown block can also hoist the bloom collecting box (83) on the second bloom collecting vehicle (82) to the bloom transport vehicle.

2. The continuous casting bloom and red delivery system of claim 1, wherein, The bloom roller way (1) comprises a plurality of bloom roller flows, and the bloom roller way (1) is further provided with an ingot rod storage device (3) and a number spraying machine (5), the ingot rod storage device (3) is located between the primary fire cutting machine (2) and the secondary fire cutting machine (4), and the number spraying machine (5) is located between the secondary fire cutting machine (4) and the slide rail (7).

3. The continuous casting bloom and red delivery system of claim 1 wherein, The bloom collecting device (8) further comprises a travelling crane track (84), the travelling crane track (84) comprises a first collecting vehicle track (841) and a second collecting vehicle track (842), the first collecting vehicle track (841) extends along the front and back direction, the second collecting vehicle track (842) extends along the left and right directions, the first bloom collecting vehicle (81) travels on the first collecting vehicle track (841), and the second bloom collecting vehicle (82) travels on the second collecting vehicle track (842).

4. The continuous casting bloom and red delivery system of claim 1 wherein, The continuous casting bloom and red delivery system further comprises a step-by-step cooling bed (10) located in front of or behind the bloom manipulator (9).

5. A continuous casting billet and red delivery method, characterized by, The continuous casting bloom and red delivery method adopts the continuous casting bloom and red delivery system of claim 1. The bloom collecting device (8) comprises a first bloom collecting vehicle (81) and a second bloom collecting vehicle (82), the first bloom collecting vehicle (81) is capable of reciprocating between a bloom receiving position (85) and a first hoisting position (86), and the second bloom collecting vehicle (82) is capable of reciprocating between the bloom receiving position (85) and a second hoisting position (87); the first bloom collecting vehicle (81) and the second bloom collecting vehicle (82) are both provided with a bloom collecting box (83), and the bloom collecting box (83) is detachably connected with the first bloom collecting vehicle (81) and the second bloom collecting vehicle (82). The continuous casting bloom and red delivery method comprises a short-sized bloom red delivery process, in which the primary cutting machine (2) cuts the original bloom into long-sized blooms, and the secondary cutting machine (4) cuts the long-sized blooms into short-sized blooms; the short-sized blooms are moved to the slide rail (7); the short-sized bloom red delivery process further comprises the following steps: Step 1a, the first bloom collecting vehicle (81) is located at the bloom receiving position (85), the second bloom collecting vehicle (82) is located at the second hoisting position (87), and the pusher (6) pushes the short-sized bloom on the slide rail (7) into the bloom collecting box (83) of the first bloom collecting vehicle (81); Step 2a, the first bloom collecting vehicle (81) is moved to the first hoisting position (86), the crane hoists the bloom collecting box (83) on the first bloom collecting vehicle (81) to the bloom transport vehicle, and the second bloom collecting vehicle (82) is moved to the bloom receiving position (85); Step 3a, the second bloom collecting vehicle (82) is located at the bloom receiving position (85), the first bloom collecting vehicle (81) is located at the first hoisting position (86), and the pusher (6) pushes the short-sized bloom on the slide rail (7) into the bloom collecting box (83) of the second bloom collecting vehicle (82); Step 4a, the second bloom collecting vehicle (82) is moved to the second hoisting position (87), the crane hoists the bloom collecting box (83) on the second bloom collecting vehicle (82) to the bloom transport vehicle, and the first bloom collecting vehicle (81) is moved to the bloom receiving position (85); Step 5a, steps 1a to 4a are repeated in sequence until all the short-sized blooms are transported out of the continuous casting bloom and red delivery system.

6. The continuous casting billet and red delivery method of claim 5 wherein, The continuous casting bloom and red delivery system further comprises a step-by-step cooling bed (10), and the continuous casting bloom and red delivery method further comprises a long-sized bloom normal line-feeding process, in which the primary cutting machine (2) cuts the original bloom into long-sized blooms, and the long-sized blooms are moved below the bloom manipulator (9); the long-sized bloom normal line-feeding process further comprises the following steps: Step 1b, the bloom manipulator (9) manipulates the long-sized bloom to the step-by-step cooling bed (10).

7. The continuous casting billet and red delivery method of claim 5, wherein The length of the long-size casting billet is 6 m-12 m, the length of the short-size casting billet is 1.4 m-4.5 m, and the casting billet collecting box (83) can accommodate 20 t-35 t of casting billets.

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