Arc-shaped hot roller table steel slag collecting system and method

Abstract

The application discloses an arc-shaped hot conveying roller steel slag collecting system and method, and belongs to the technical field of continuous casting and rolling steel. The arc-shaped hot conveying roller steel slag collecting system comprises a conical chute fixed at the bottom of an arc-shaped hot conveying roller and an arc-shaped track steel slag collecting device. The conical chute is arranged in an arc shape in the length direction and is arranged in a downwardly tapered shape in the vertical direction. The arc-shaped track steel slag collecting device comprises a scraper device, a hopper and an arc-shaped steel slag chute. The upper opening of the conical chute receives the falling surface of the arc-shaped hot conveying roller, and the bottom opening falls the steel slag on the falling surface to the arc-shaped steel slag chute. The scraper device slidingly connected to the arc-shaped steel slag chute scrapes the steel slag in the arc-shaped steel slag chute to the hopper fixed at the discharge end of the arc-shaped steel slag chute, and the slag removal work of the steel slag at the bottom of the arc-shaped hot conveying roller is completed. The problems of serious accumulation of the steel slag on the arc-shaped hot conveying roller and high cleaning difficulty are solved.

Description

Technical Field

[0001] This invention belongs to the field of continuous casting and rolling steel, and more specifically, relates to an arc-shaped hot conveying roller table steel slag collection system and method. Background Technology

[0002] Integrated casting and rolling production refers to a production process in which hot-cast billets, after being cut to length by the continuous casting machine, are directly and hot-rolled at the steel rolling mill. This process makes full use of the heat energy of the continuous casting billets, effectively achieving high-temperature, defect-free billet rolling. It transforms continuous casting and steel rolling into a closely integrated production system, significantly reducing energy consumption, increasing metal yield, shortening product production cycles, and improving product quality.

[0003] In existing integrated casting and rolling production, continuous casting and direct rolling technology is widely used. In order to save resources and reduce secondary heating, the speed of hot conveyor rollers is constantly increasing, and the billet conveying volume is also increasing day by day. During transportation, steel slag such as iron oxide scale falls from the rollers and is generally concentrated in the roller frame below the rollers. Over time, manual cleaning is particularly troublesome, inefficient, and affects production, and may even involve safety issues. Existing steel slag scrapers can collect steel slag, but they can only be used for horizontal and vertical collection and transportation in straight sections. However, in the process from continuous casting to steel rolling, there are many curved hot conveyor rollers, and even the width of rollers in different sections is different. Steel slag accumulation is serious and cleaning is difficult. The steel slag scrapers in the straight sections mentioned above cannot be used here. Summary of the Invention

[0004] 1. The problem to be solved

[0005] To address the above technical problems, this invention provides a steel slag collection system and method for an arc-shaped hot conveyor roller conveyor. The system uses an arc-shaped track steel slag collection device adapted to the arc-shaped hot conveyor roller conveyor to complete the collection of steel slag. The entire process does not require stopping the production line for manual slag removal, which reduces the physical labor of operators, improves slag removal efficiency, and reduces the probability of safety accidents.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A steel slag collection system for an arc-shaped hot conveyor roller conveyor includes a conical chute and an arc-shaped track steel slag collection device fixed to the bottom of the arc-shaped hot conveyor roller conveyor. The conical chute is arc-shaped in the length direction and conical in the vertical direction with a downward-sloping opening. The arc-shaped track steel slag collection device includes a scraper device, a hopper, and an arc-shaped steel slag trough. The upper opening of the conical chute receives the material drop surface of the arc-shaped hot conveyor roller conveyor, and the bottom opening allows the steel slag on the material drop surface to fall into the arc-shaped steel slag trough. The scraper device, which is slidably connected in the arc-shaped steel slag trough, scrapes the steel slag in the arc-shaped steel slag trough into the hopper fixed to the discharge end of the arc-shaped steel slag trough, thus completing the slag removal work at the bottom of the arc-shaped hot conveyor roller conveyor.

[0009] A further technical solution is to match the arc shape of the conical chute and the arc shape of the arc-shaped hot conveying roller with the arc shape of the arc-shaped hot conveying roller, which can effectively improve the slag removal efficiency.

[0010] A further technical solution involves a scraper device comprising a chain, a scraper, and a U-shaped groove. The U-shaped groove is fixed to the upper end face of the chain. The scraper has a transversely perforated oblong hole, and after passing through the oblong hole with a bolt pair, the scraper is disassembled and connected to the U-shaped groove. The bolt pair is slidably connected in the oblong hole. When the chain drives the scraper to move in the arc-shaped slag trough, the bolt pair connector on the U-shaped groove can move relative to each other in the oblong hole, which can effectively reduce or even avoid interference, thereby realizing the slag removal function of the arc-shaped track.

[0011] A further technical solution involves fitting the bolt pair into the sleeve, which is then rolled into the oblong hole to reduce friction. The bottom of the U-shaped groove is fixedly connected to the upper end face of the chain by a reinforcing block to increase the mounting surface, such as by increasing the welding surface.

[0012] A further technical solution includes a support wheel device for radially supporting the chain in the arc-shaped track steel slag collection device. The support wheel device includes a mounting plate, an upper support wheel, and a lower support wheel. The mounting plate is horizontally fixed to the inner wall of the arc-shaped steel slag trough, and the support shaft vertically penetrates the mounting plate. The upper and lower support wheels are symmetrically and rollingly connected to the upper and lower surfaces of the mounting plate via the support shaft. The upper and lower support wheels are both provided with stepped axial grooves in their axial directions, and the two support wheels are fixed to the support shaft through the cooperation of the pressure plate and the axial grooves. The upper and lower support wheels are both provided with radial grooves in their radial directions. The shape of the radial grooves is adapted to the chain and meshes with the chain to support and guide the chain to make arc-shaped rotational movements.

[0013] A further technical solution involves each pair of upper and lower support wheels forming a group. The outer arc of each support wheel group is tangent to the center line of the arc-shaped steel slag trough. The distance B between the outer arc tangent of any two support wheel groups and the inner arc wall of the arc-shaped steel slag trough should meet the installation space requirements of the scraper device. B = R * COSβ / 2 - (RA / 2), where B is the distance between the outer arc tangent of any two adjacent support wheel groups and the inner arc wall of the arc-shaped steel slag trough; β is the angle between the central axis of the two adjacent support wheel groups and the line connecting the center point of the arc-shaped track; R is the radius of the arc-shaped track; and A is the width of the arc-shaped steel slag trough. This improves the accuracy of the arc design of the arc-shaped track steel slag collection device and avoids interference between the scraper device and the arc-shaped steel slag trough during its arc-shaped operation.

[0014] A further technical solution includes a head unit for the arc-shaped track slag collection device. The head unit includes a transmission mechanism and a head wheel and a drive shaft that are tightly connected. The head wheel is meshed with a chain. The transmission mechanism drives the drive shaft to rotate, which in turn drives the head wheel and the chain to rotate, thus providing a power source for the scraper device.

[0015] A further technical solution includes a central chain support roller device for the arc-shaped track steel slag collection device. The central chain support roller device includes a support roller and a roller sleeve fixed to the roller body of the support roller. The two ends of the roller shaft of the support roller are rotatably connected to the arc-shaped steel slag trough to prevent the chain from deflecting due to its own weight.

[0016] A further technical solution involves an arc-shaped track slag collection device that also includes a tail tensioning device. This tail tensioning device comprises a tensioning mounting base, a tensioning plate, a lead screw, a tensioning slide, a tail wheel, a tensioning shaft, a bushing, a rotating bearing, and a shaft end baffle. The tensioning mounting base has a longitudinally elongated slide. The tail wheel engages with the rotating bearing and is fixed to the tensioning shaft. The tensioning shaft is connected and fixed to the tensioning slide via the shaft end baffle. The tensioning slide includes a slider and a lead screw connecting block. The slider has a stepped cross-section and is symmetrically arranged, fitting within the elongated slide of the base. One end of the lead screw is fixedly connected to the lead screw connecting block. The tensioning plate is bolted to the tensioning mounting base. The tail wheel meshes with a chain to adjust the chain tension.

[0017] A further technical solution involves an arc-shaped track slag collection device consisting of two or more sections, adapted to different arc-shaped hot conveyor rollers. This allows for a more flexible and adaptable process layout in the arc-shaped hot conveyor roller slag collection system. When different arc-shaped sections need to be segmented in the process layout, or when multiple slag collection devices need to be set up based on the slag removal capacity of the transmission mechanism, a segmental chute guide plate is fixed between adjacent arc-shaped track slag collection devices in a herringbone shape to prevent dead zones in slag removal.

[0018] A method for collecting steel slag in the above-mentioned arc-shaped hot conveyor roller table steel slag collection system: when steel billets generate steel slag on the hot conveyor roller table, the slag is guided by a conical chute and slides into an arc-shaped steel slag trough. The arc-shaped track steel slag collection device drives a scraper device to perform a circular reciprocating motion, thereby scraping the steel slag that falls to the bottom of the arc-shaped steel slag trough into the ash hopper at the end.

[0019] 3. Beneficial effects

[0020] (1) The arc-shaped hot conveying roller table steel slag collection system of the present invention can design the taper of the conical chute according to the roller width of the hot conveying roller table, the width of the arc-shaped steel slag trough and the height of the roller table and the arc-shaped steel slag trough. It can be adapted to the same arc-shaped steel slag trough width, with strong applicability and no limitation on the scope of application.

[0021] (2) The arc-shaped track steel slag collection device in this invention can be set into one or more sections according to the arc radius and arc rotation angle of the hot conveying roller and the slag cleaning capacity of the transmission mechanism. The arc-shaped steel slag trough width in the same section is consistent, ensuring the uniformity of scraper specifications and the flexibility of movement. In addition, each section of the arc-shaped track steel slag collection device has a set of transmission devices, which can independently complete the slag cleaning work, effectively preventing the situation of one failure causing the whole stop, and enhancing the safety of production.

[0022] (3) In the present invention, a support wheel is set between the head wheel and the tail wheel of the arc-shaped track steel slag collection device for radial support of the chain. The outer arc of each support wheel is tangent to the center line of the arc-shaped steel slag trough. The distance B between the outer arc tangent of any two support wheels and the inner arc wall of the arc-shaped steel slag trough should meet the installation space requirements of the scraper device. After the size of the scraper device is determined, the arrangement angle β of each pair of support wheels can also be deduced.

[0023] (4) The support wheel in this invention has a groove on its rim that is adapted to the shape of the chain. The support wheel is arranged symmetrically up and down. When the chain moves back and forth, both the upper and lower ends of the chain can be supported.

[0024] (5) In this invention, the support wheel is fixed to the mounting plate of the arc-shaped steel slag trough by a support shaft and a clamp mounting base. The clamp mounting base is a split type, which facilitates installation and disassembly. A self-lubricating bushing is used between the support wheel and the support shaft. The support wheel and the bushing are loosely fitted to ensure the free rotation of the support wheel and reduce the cost of manual lubrication or centralized lubrication.

[0025] (6) The support wheel in this invention is a stepped groove type. The support wheel is fixed to the support shaft by the pressure plate to prevent movement. The pressure plate and fixing bolts are both inside the groove of the support wheel, which effectively prevents protrusions from causing jamming and interference with the scraper device;

[0026] (7) In the arc-shaped track steel slag collection device of the present invention, a support roller is provided between every two support wheels to prevent the chain from deflecting due to its own weight;

[0027] (8) The support roller in this invention adopts a hollow roller structure to reduce its own weight. In addition, a roller sleeve is designed on the hollow roller body, which is made of high polymer wear-resistant material to avoid hard friction between steel. The roller sleeve adopts a half clamp type and is fixed by bolt pair for easy replacement.

[0028] (9) The head wheel of the head device and the tail wheel of the tail tensioning device of the arc track steel slag collection device in this invention are both engaged with the chain. The wheel size and shape are cross-shaped, with deep vertical grooves and shallow horizontal grooves. The chain is well positioned in the wheel grooves, with little axial movement and high stability.

[0029] (10) The tail wheel tensioning device installed at the tail of the arc-shaped track slag collection device in this invention is in a relaxed state during installation, which is conducive to the installation of the chain; after installation, the fastening nut of the tensioning device is rotated to tension the chain. This device effectively solves the problem of installation failure caused by design errors and installation errors, and at the same time provides a solution to the problem of chain slackness during production.

[0030] (11) In the tail tensioning device of the present invention, the tail wheel is fitted with the bearing and fixed on the tensioning shaft. The tensioning shaft is connected to the tensioning slide through the shaft end baffle. Then, the slide slide is driven by the screw to slide in the slide of the tensioning base. The chain drives the tail wheel to rotate around the tensioning shaft. The slide is stepped and symmetrically arranged, and is stuck in the slide of the base. The structure is compact and effective.

[0031] (12) In the scraper device of the present invention, a U-shaped groove is welded to the horizontal upper part of the chain. There are two through holes for tubes in the U-shaped groove. The scraper is fixed in the U-shaped groove on the chain by bolts. Then the chain drives the scraper to move in the arc-shaped steel slag trough. The width of the scraper is adapted to the width of the arc-shaped steel slag trough. The optimal distance between the two ends of the scraper and each side of the inner wall of the arc-shaped steel slag trough is 10mm. The scraper is made of a high polymer wear-resistant material, and the two sides of the scraper are ground into arcs to reduce the friction contact surface between the two sides of the scraper and the inner arc wall of the steel slag trough during the movement.

[0032] (13) In the scraper device of the present invention, the scraper is always perpendicular to the chain, and the chain moves in a straight line between the two support wheels. Since the steel slag trough is arc-shaped, the distance between the bolt pair fixing the scraper on the U-shaped slot and the arc wall inside the arc-shaped steel slag trough is not fixed. Therefore, the original two round holes for fixing on the scraper are changed to two waist-shaped long holes, and a self-lubricating sleeve is added. The sleeve is inserted between the bolt pair and the waist-shaped hole of the scraper. There is a gap between the sleeve and the adjacent parts. When the chain drives the scraper to move in the arc-shaped steel slag trough, the connecting parts on the U-shaped slot can move relative to each other in the waist-shaped long hole of the scraper, thereby realizing the function of cleaning slag on the arc track.

[0033] (14) In the arc-shaped track steel slag collection device of the present invention, the height of the head wheel and the tail wheel in the vertical direction relative to the bottom of the arc-shaped steel slag trough should be reasonably arranged by calculation to ensure that when the chain drives the scraper to move in a circular reciprocating motion, the gap between the scraper and the bottom of the arc-shaped steel slag trough after the scraper rotates to the bottom is within a safe range, ensuring no scraping, free movement, and clean slag removal.

[0034] (15) In the arc-shaped hot conveying roller conveyor steel slag collection system of the present invention, when different arc-shaped sections need to be segmented in the process layout or when multiple steel slag collection devices need to be set according to the slag removal capacity of the transmission mechanism, a herringbone chute guide plate is set between the sections to prevent the existence of dead corners in slag removal.

[0035] (16) The arc-shaped hot conveying roller conveyor steel slag collection system of the present invention can be reasonably configured in terms of arc and length of each arc-shaped track steel slag collection device as needed, and each arc-shaped track steel slag collection device can also be adapted to be widened or narrowed according to the width of the hot conveying roller conveyor. They have similar structures, but work independently, have high flexibility, strong adaptability, and can reduce the failure rate.

[0036] (17) The entire system of the present invention can achieve automated operation and image visualization. Operators only need to be in the operating room, and the risk factor is low. Attached Figure Description

[0037] Figure 1 This is a top view schematic diagram of the arc-shaped hot conveyor roller conveyor steel slag collection system according to a specific embodiment;

[0038] Figure 2 This is a schematic diagram of the elevation structure of the arc-shaped hot conveyor roller conveyor steel slag collection system according to a specific embodiment;

[0039] Figure 3 This is a schematic diagram of the head device structure in a specific embodiment;

[0040] Figure 4 This is a schematic diagram of the scraper device structure in a specific embodiment;

[0041] Figure 5 This is a schematic diagram of the middle chain support roller structure in a specific embodiment;

[0042] Figure 6 This is a partial schematic diagram of the support roller sleeve in a specific embodiment;

[0043] Figure 7 This is a partial sectional view of the support wheel device in a specific embodiment;

[0044] Figure 8 A top view of the support wheel installation in a specific embodiment;

[0045] Figure 9 This is a front view of the tail tensioning device in a specific embodiment;

[0046] Figure 10 This is a cross-sectional view of the tail tensioning device in a specific embodiment;

[0047] Figure 11 This is a detailed view of the scraper device in a specific embodiment;

[0048] Figure 12 This is a detailed view of the scraper device in a specific embodiment;

[0049] Figure 13 This is a schematic diagram of the guide plate of the inter-segment steel slag chute in a specific embodiment.

[0050] In the diagram: 1. Arc-shaped hot conveyor roller conveyor; 101. Roller conveyor frame; 2. Conical chute; 3. Civil engineering foundation; 4. Slag hopper transport vehicle; 5. Arc-shaped track steel slag collection device; 7. Photographic equipment; 8. Operation control room;

[0051] 51. Head assembly; 511. Head wheel; 512. Drive shaft; 513. Bearing housing 1; 514. Transmission mechanism;

[0052] 52. Middle chain support roller assembly; 521. Roller sleeve; 522. Support roller; 523. Bearing housing two;

[0053] 53. Support wheel assembly; 531. Mounting plate; 532. Pressure plate; 533. Bushing; 534. Upper support wheel; 535. Lower support wheel; 536. Support shaft; 537. Axial groove; 538. Clamp mounting base; 539. Radial groove;

[0054] 54. Tail tensioning device; 541. Tensioning mounting base; 5411. Long slide rail; 542. Tensioning pressure plate; 543. Lead screw; 544. Tensioning slide; 5441. Lead screw connecting block; 5442. Slider; 545. Tail wheel; 546. Tensioning shaft; 547. Bushing; 548. Rotary bearing; 549. Shaft end baffle

[0055] 55. Scraper device; 551. Scraper; 552. Sleeve; 553. U-shaped groove; 554. Reinforcing block; 555. Waist-shaped elongated hole;

[0056] 56. Chain; 57. Inter-section chute guide plate; 58. Ash hopper; 59. Arc-shaped steel slag trough. Detailed Implementation

[0057] The present invention will now be further described with reference to specific embodiments and accompanying drawings.

[0058] Example 1

[0059] The arc-shaped hot conveyor roller conveyor slag collection system of this embodiment, such as Figure 1 , 2As shown, the system includes a conical chute 2 fixed to the bottom of the arc-shaped hot conveyor roller 1 and an arc-shaped track slag collection device 5. The conical chute 2 is arc-shaped in the length direction and conical in the vertical direction with a downward-sloping opening. The arc-shaped track slag collection device 5 includes a scraper device 55, a hopper 58, and an arc-shaped slag trough 59. The upper opening of the conical chute 2 receives the material falling surface of the arc-shaped hot conveyor roller 1, and the bottom opening allows the slag on the material falling surface to fall into the arc-shaped slag trough 59. The scraper device 55, which is slidably connected in the arc-shaped slag trough 59, scrapes the slag in the arc-shaped slag trough 59 into the hopper 58 fixed at the discharge end of the arc-shaped slag trough 59, thus completing the slag removal work at the bottom of the arc-shaped hot conveyor roller 1. The arc shapes of the conical chute 2 and the arc-shaped slag trough 59 are adapted to the arc shape of the arc-shaped hot conveyor roller 1 to effectively improve the slag removal efficiency.

[0060] like Figure 4 , 11 As shown in Figure 12, the scraper device 55 includes a chain 56, a scraper 551, and a U-shaped groove 553. The U-shaped groove 553 is fixed to the upper end face of the chain 56. The scraper 551 has a transversely perforated oblong hole 555, and after passing through the oblong hole 555 with a bolt pair, the scraper 551 is disassembled and connected to the U-shaped groove 553. The bolt pair is slidably connected in the oblong hole 555. When the chain 56 drives the scraper 551 to move in the arc-shaped slag trough 59, the bolt pair connector on the U-shaped groove 553 can move relative to each other in the oblong hole 555, which can effectively reduce or even avoid interference, thereby realizing the slag removal function of the arc-shaped track. The bolt pair is fitted into the sleeve 552, and the sleeve 552 is rolled into the oblong hole 555 to reduce friction; the bottom of the U-shaped groove 553 is fixedly connected to the upper end face of the chain 56 by the reinforcing block 554 to increase the mounting surface, such as increasing the welding surface.

[0061] The arc-shaped track slag collection device 5 also includes a head device 51, such as Figure 3 As shown, the head device 51 includes a transmission mechanism 514 and a head wheel 511 and a drive shaft 512 that are tightly connected. The head wheel 511 is meshed with a chain 56. The transmission mechanism 514 drives the drive shaft 512 to rotate, thereby driving the head wheel 511 and the chain 56 to rotate, so as to provide a power source for the scraper device 55.

[0062] In this embodiment, the slag collection method of the arc-shaped hot conveyor slag collection system involves the following steps: when slag is generated on the hot conveyor 1, it slides down into the arc-shaped slag trough 59 through the guide of the conical chute 2. The arc-shaped track slag collection device 5 drives the scraper device 55 to perform a circular reciprocating motion, thereby scraping the slag that falls to the bottom of the arc-shaped slag trough 59 into the ash hopper 58 at the end.

[0063] Example 2

[0064] The arc-shaped hot conveyor roller slag collection system of this embodiment has the same basic structure as that of Embodiment 1, but the difference or improvement is that the arc-shaped track slag collection device 5 also includes a support wheel device 53 for radially supporting the chain 56, such as... Figure 7 , 8 As shown, the support wheel device 53 includes a mounting plate 531, an upper support wheel 534, and a lower support wheel 535. The mounting plate 531 is horizontally fixed to the inner wall of the arc-shaped steel slag trough 59, and the support shaft 536 vertically penetrates the mounting plate 531. The upper support wheel 534 and the lower support wheel 535 are symmetrically and rollingly connected to the upper and lower surfaces of the mounting plate 531 through the support shaft 536. The upper support wheel 534 and the lower support wheel 535 are both provided with stepped axial grooves 537 in the axial direction, and the two support wheels are fixed to the support shaft 536 through the cooperation of the pressure plate 532 and the axial grooves 537. The upper support wheel 534 and the lower support wheel 535 are both provided with radial grooves 539 in the radial direction. The shape of the radial grooves 539 is adapted to the chain 56 and meshes with the chain 56 to support and guide the chain 56 to perform arc-shaped rotational movement.

[0065] Each pair of upper support wheels 534 and lower support wheels 535 forms a group. The outer arc of each support wheel group is tangent to the center line of the arc-shaped steel slag trough 59. The distance B between the outer arc tangent of any two support wheel groups and the inner arc wall of the arc-shaped steel slag trough 59 should meet the installation space requirements of the scraper device 55. B = R * COSβ / 2 - (RA / 2), where B is the distance between the outer arc tangent of any two adjacent support wheel groups and the inner arc wall of the arc-shaped steel slag trough 59; β is the angle between the central axis of the two adjacent support wheel groups and the line connecting the center point of the arc-shaped track; R is the radius of the arc of the arc-shaped track; and A is the width of the arc-shaped steel slag trough 59. This is to improve the accuracy of the arc design of the arc-shaped track steel slag collection device 5 and avoid interference of the scraper device 55 during its arc-shaped operation in the arc-shaped steel slag trough 59.

[0066] Example 3

[0067] The arc-shaped hot conveyor roller slag collection system of this embodiment has the same basic structure as that of embodiment 2, except that the arc-shaped track slag collection device 5 also includes a central chain support roller device 52, such as... Figure 5 , 6 As shown, the central chain support roller device 52 includes a support roller 522 and a roller sleeve 521 fixed to the roller body of the support roller 522. The two ends of the roller shaft of the support roller 522 are rotatably connected within the arc-shaped steel slag trough 59 to prevent the chain 56 from sagging due to its own weight. The arc-shaped track steel slag collection device 5 also includes a tail tensioning device 54, such as... Figure 9 , 10As shown, the tail tensioning device 54 includes a tensioning mounting base 541, a tensioning pressure plate 542, a lead screw 543, a tensioning slide 544, a tail wheel 545, a tensioning shaft 546, a bushing 547, a rotating bearing 548, and a shaft end baffle 549. The tensioning mounting base 541 has a longitudinal elongated slide 5411. The tail wheel 545 cooperates with the rotating bearing 548 and is fixed on the tensioning shaft 546. The tensioning shaft 546 is connected and fixed to the tensioning slide 544 through the shaft end baffle 549. The tensioning slide 544 includes a slider 5442 and a lead screw connecting block 5441. The slider 5442 has a stepped cross-section and is symmetrically arranged, and is stuck in the elongated slide 5411 of the base. One end of the lead screw 543 is fixedly connected to the lead screw connecting block 5441. The tensioning pressure plate 542 is fixed to the tensioning mounting base 541 by bolts. The tail wheel 545 is meshed with the chain 56. To adjust the tension of chain 56.

[0068] Example 4

[0069] The arc-shaped hot conveyor roller conveyor slag collection system of this embodiment has the same basic structure as that of embodiment 3. The difference or improvement is that the arc-shaped track slag collection device 5 has two or more sections and is adapted to different arc-shaped sections of the arc-shaped hot conveyor roller conveyor 1, so as to adapt to the flexible and versatile process layout of the arc-shaped hot conveyor roller conveyor slag collection system. When different arc sections need to be segmented in the process layout or multiple slag collection devices need to be set according to the slag cleaning capacity of the transmission mechanism, such as Figure 13 As shown, a section chute guide plate 57 is fixed between two adjacent sections of the arc-shaped track slag collection device 5, which is in the shape of a herringbone to prevent dead corners in slag removal.

[0070] Example 5

[0071] The arc-shaped hot conveyor roller conveyor steel slag collection system and method of this embodiment have the same basic structure as in embodiment 4, with the following differences or improvements:

[0072] The process system layout of the two-section arc-shaped hot conveyor slag collection device 5 will be described in detail as an example. Figure 1 and Figure 2 As shown, this system includes a hot conveying roller conveyor 1, a conical chute 2, a civil engineering foundation 3, a slag hopper transport vehicle 4, a two-section arc-shaped track steel slag collection device 5, a photography equipment 7, and an operation control room 8.

[0073] Given that the arc-shaped hot conveyor roller 1 is arranged in an arc shape on the plane, and the width of the roller can be the same or different, the hot conveyor roller can be arranged in a climbing shape or in a horizontal shape in the vertical direction. According to the different arrangement of the arc-shaped hot conveyor roller 1, a special-shaped conical chute 2 with an arc is designed and manufactured. The conical chute 2 is fixed on the roller frame 101 and is used as a guide plate when the steel slag falls.

[0074] The two-section arc-shaped track slag collection device 5 each includes a head device 51, a middle chain support roller device 52, a support wheel device 53, a tail tensioning device 54, a scraper device 55, a chain 56, an inter-section chute guide plate 57, an ash hopper 58, and an arc-shaped slag trough 59. The arc-shaped track slag collection device 5 can be reasonably configured in terms of curvature and length as needed, and can also be adapted to be widened or narrowed according to the width of the arc-shaped hot conveying roller 1.

[0075] Both the head device 51 and the tail tensioning device 54 are fixed on the civil foundation 3. The head wheel 511 of the head device 51 is tightly fitted with the drive shaft 512. The two ends of the drive shaft 512 are provided with bearing seats (with bearings) 513. The transmission mechanism 514 drives the drive shaft 512 to rotate, which in turn drives the head wheel 511 and the chain 56 to rotate. The head wheel 511 meshes with the chain 56. The head wheel 511 has a cross-shaped groove with a deep vertical groove and a shallow horizontal groove, which facilitates the guidance and positioning of the chain in the groove of the head wheel 511.

[0076] The support wheel device 53 is located between the head device 51 and the tail tensioning device 54. One or more sets of support wheel devices 53 can be set according to the radius and angle of the arc. The support wheel device 53 serves as the radial support for the chain 56 and is fixed on the arc-shaped steel slag trough 59. Each set of support wheel devices 53 includes an upper support wheel 534 and a lower support wheel 535. The shape of the groove on the rim of each support wheel is adapted to the chain 56. The upper support wheel 534 and the lower support wheel 535 have the same structure and size and are symmetrically arranged. When the chain 56 makes a back-and-forth motion, the upper and lower ends of the chain... All support wheels receive guiding support; the axial interior of the support wheel has a stepped groove shape, known as axial groove 537. The upper support wheel 534 and lower support wheel 535 are fixed to the support shaft 536 by a pressure plate 532 to prevent movement. The pressure plate 532 and fixing bolts are both located within the axial groove 537 of the support wheel, effectively preventing protrusions from causing jamming or interference with the scraper device 55. The radial grooves on the radial rims of the upper support wheel 534 and lower support wheel 535 are designed to match the chain, with a cross-shaped groove, shallow vertical grooves, and deep horizontal grooves. Both support wheels are designed to fit the chain. The upper support wheel 534 and the lower support wheel 535 are fixed to the mounting plate 531 via the support shaft 536 and the clamp mounting base 538. The mounting plate 531 is welded to the arc-shaped steel slag trough 59. The clamp mounting base 538 is a split type for easy installation and disassembly. The upper support wheel 534 and the lower support wheel 535 are connected to the support shaft 536 by a self-lubricating bushing 533. The support wheels and bushing 533 are loosely fitted to ensure free rotation of each support wheel and reduce the cost of manual or centralized lubrication. The outer arc of each set of support wheels is... Tangent to the center line of the arc-shaped steel slag trough 59, the distance B between the outer arc tangent of any two sets of support wheels and the inner arc wall of the arc-shaped steel slag trough 59 should meet the installation space requirements of the scraper device 55. B = R * COSβ / 2 - (RA / 2), (where B: the distance between the outer arc tangent of any two adjacent support wheels and the inner arc wall of the arc-shaped steel slag trough; β: the angle between the central axis of the two adjacent support wheels and the line connecting the center point of the arc track; R: the radius of the arc of the arc track; A: the width of the arc-shaped steel slag trough). After determining the size of the scraper device 55, the arrangement angle β of each pair of support wheels can also be deduced.

[0077] A central chain support roller device 52 is provided between every two support roller devices 53 to prevent the chain 56 from sag due to its own weight. The support roller 522 adopts a hollow roller structure to reduce its own weight. In addition, a roller sleeve 521 is designed on the support roller 522, which is made of high polymer wear-resistant material to avoid hard friction between steel. The roller sleeve 521 adopts a half clamp type and is fixed by bolt pair for easy replacement. After the roller shaft of the support roller 522 is installed with the bearing seat 2 (with bearing) 523, the bearing seat (with bearing) 523 is connected and fixed on the arc-shaped steel slag trough 59.

[0078] The tail tensioning device 54 is fixed on the civil foundation 3. The device includes a tensioning mounting base 541, a tensioning pressure plate 542, a lead screw 543, a tensioning slide 544, a tail wheel 545, a tensioning shaft 546, a bushing 547, a rotating bearing (with seal) 548, a shaft end baffle 549, and bolt fasteners. The tensioning mounting base 541 has an elongated slide rail 5411 hole. The tail wheel 545 is fitted with a rotating bearing (with seal) 548 and fixed on the tensioning shaft 546. The tensioning shaft 546 is connected and fixed to the tensioning slide 544 through the shaft end baffle 549. The slider 5442 of the tensioning slide 544 has a stepped cross section and is symmetrically arranged. It is stuck in the elongated slide rail 5411 of the base. One end of the lead screw 543 is welded and fixed to the lead screw connecting block 5441 of the tensioning slide 544. The tensioning pressure plate 542 is fixed to the tensioning mounting base 541 by bolts. When installing the chain 56, the tail tensioning device 54 is in a relaxed state. After installation, the adjusting nut of the lead screw 543 is tightened to drive the slide 544 to slide in the elongated slide rail 5411 of the tensioning base 541, thus tensioning the chain 56. At the same time, the chain 56 drives the tail pulley 545 to rotate around the tension shaft 546. The tail pulley 545 meshes with the chain 56. The tail pulley 545 has the same external dimensions as the head pulley 511 mentioned above. It is cross-shaped with a deep vertical groove and a shallow horizontal groove, which facilitates the positioning of the chain in the groove of the tail pulley 545.

[0079] In the scraper device 55, a U-shaped groove 553 is welded horizontally above the chain 56. The U-shaped groove 553 has two through holes for pipes. The scraper 551 is fixed to the U-shaped groove 553 on the chain 56 using bolts. The chain 56 then drives the scraper 551 to move within the arc-shaped steel slag trough 59. The width of the scraper 551 is matched to the width of the arc-shaped steel slag trough 59. The optimal distance between the two ends of the scraper 551 and the sides of the inner wall of the arc-shaped steel slag trough 59 is 10mm. The scraper 551 is made of a high-polymer wear-resistant material, and the two sides of the scraper are ground into a rounded transition to reduce the frictional contact area between the two sides of the scraper and the inner arc wall of the steel slag trough during movement. The scraper 551 is always perpendicular to the chain 56, which moves linearly between the two sets of support wheel devices 53. Because the slag trough 59 is arc-shaped, the distance between the bolt pair fixing the scraper 551 on the U-shaped slot 553 and the inner arc wall of the arc-shaped slag trough is not fixed. Therefore, the original two round holes for fixing on the scraper 551 are replaced with two oblong holes 555, and a self-lubricating sleeve 552 is added. The sleeve 552 passes between the bolt pair and the oblong hole of the scraper 551, with gaps between the sleeve 552 and adjacent parts. When the chain 56 drives the scraper 551 to move in the arc-shaped slag trough 59, the connecting parts on the U-shaped slot 553 can move relative to each other within the oblong hole of the scraper 551, thus realizing the slag cleaning function of the arc-shaped track. The distribution density of the U-shaped slots 553 on the chain 56 can be reasonably arranged according to production capacity requirements. In addition, a reinforcing block 554 is added. The reinforcing block 554 can increase the welding surface, making the welding between the U-shaped slot 553 and the chain 56 more secure.

[0080] The arc-shaped steel slag trough 59 has an open cross-section. The upper opening receives the steel slag that slides down from the conical chute 2. An opening is made near the head device 51, with the diameter matching that of the ash hopper 58 and connected to the ash hopper 58. The rest of the bottom is closed for collecting slag. The arc-shaped steel slag trough 59 is arc-shaped in plane, and its curvature is consistent with the curvature of the hot conveying roller conveyor.

[0081] This arc-shaped hot conveyor slag collection system is flexible and adaptable in terms of process layout. When different arc sections need to be segmented in the process layout or when multiple slag collection devices need to be set up according to the slag removal capacity of the transmission mechanism, inter-segment chute guide plates 57 are set between the sections in a herringbone shape to prevent the existence of dead corners in slag removal.

[0082] The slag collection method of the entire system is as follows: When iron oxide scale is generated on the steel billet on the hot conveyor roller 1, it slides down through the conical chute 2 to the bottom of the arc-shaped track slag collection device 1 and the arc-shaped track slag collection device 2. The arc-shaped track slag collection device drives the head wheel 511, which drives the scraper 551 on the chain 56 to perform a circular reciprocating motion, thereby scraping the slag that has fallen to the bottom of the arc-shaped slag trough 59 into the ash hopper 58 at the end. The slag hopper transport vehicle 4 stops directly below the ash hopper 58, and finally transports it to the slag stack, completing the slag removal work. The entire process does not require stopping the production line for manual slag removal, reducing the physical labor of the operators, improving slag removal efficiency, and reducing the probability of safety accidents.

[0083] The examples of this invention are merely descriptions of preferred embodiments of the invention and are not intended to limit the concept and scope of the invention. Various modifications and improvements made by those skilled in the art to the technical solutions of this invention without departing from the design concept of this invention should fall within the protection scope of this invention.

Claims

1. A steel slag collection system for an arc-shaped hot conveyor roller, characterized in that: The device includes a conical chute (2) fixed to the bottom of the arc-shaped hot conveying roller (1) and an arc-shaped track slag collection device (5); the conical chute (2) is arc-shaped in the length direction and conical in the vertical direction with a downward tapering shape; the arc-shaped track slag collection device (5) includes a scraper device (55), a hopper (58) and an arc-shaped slag trough (59); the upper opening of the conical chute (2) receives the material falling surface of the arc-shaped hot conveying roller (1), and the bottom opening drops the slag from the material falling surface into the arc-shaped slag trough (59); the scraper device (55) slidably connected in the arc-shaped slag trough (59) scrapes the slag in the arc-shaped slag trough (59) into the hopper (58) fixed at the discharge end of the arc-shaped slag trough (59); The scraper device (55) includes a chain (56), a scraper (551), and a U-shaped groove (553); the U-shaped groove (553) is fixed to the upper end face of the chain (56); the scraper (551) has a transversely perforated oblong hole (555), and after passing through the oblong hole (555) with a bolt pair, the scraper (551) is disassembled and connected to the U-shaped groove (553); the bolt pair is slidably connected in the oblong hole (555); The bolt assembly is sleeved in the sleeve (552), and the sleeve (552) is rolled in the waist-shaped elongated hole (555); the bottom of the U-shaped groove (553) is fixedly connected to the upper end face of the chain (56) by a reinforcing block (554); The arc-shaped track slag collection device (5) further includes a support wheel device (53) for radial support of the chain (56). The support wheel device (53) includes a mounting plate (531), an upper support wheel (534), a lower support wheel (535), and a support shaft (536). The mounting plate (531) is horizontally fixed to the inner wall of the arc-shaped slag trough (59), and the support shaft (536) vertically penetrates the mounting plate (531). The upper support wheel (534) and the lower support wheel (535) are symmetrically aligned and roll through the support shaft (536). The upper and lower surfaces of the mounting plate (531) are dynamically connected; the upper support wheel (534) and the lower support wheel (535) are provided with stepped axial grooves (537) in the axial direction, and the two support wheels are fixed to the support shaft (536) by the cooperation of the pressure plate (532) and the axial grooves (537); the upper support wheel (534) and the lower support wheel (535) are provided with radial grooves (539) in the radial direction, the shape of the radial grooves (539) is adapted to the chain (56), and they are engaged with the chain (56); Each pair of upper support wheels (534) and lower support wheels (535) forms a group. The outer arc of each support wheel group is tangent to the center line of the arc-shaped steel slag trough (59). The distance B between the outer arc tangent of any two support wheel groups and the inner arc wall of the arc-shaped steel slag trough (59) should meet the installation space requirements of the scraper device (55): B=R*COSβ / 2-(RA / 2), where, B is the distance between the outer arc tangent of any two adjacent support wheel sets and the inner arc wall of the arc-shaped steel slag trough (59); β is the angle between the central axis of the two adjacent support wheel sets and the line connecting the center point of the arc-shaped track; R is the radius of the arc-shaped track; A is the width of the arc-shaped steel slag trough (59).

2. The arc-shaped hot conveyor roller conveyor slag collection system according to claim 1, characterized in that: The arc shape of the conical chute (2) and the arc-shaped steel slag chute (59) are both adapted to the arc shape of the arc-shaped hot conveying roller (1).

3. The arc-shaped hot conveyor roller conveyor slag collection system according to claim 1, characterized in that: The arc-shaped track slag collection device (5) also includes a head device (51), which includes a transmission mechanism (514) and a head wheel (511) and a transmission shaft (512) that are tightly connected. The head wheel (511) is meshed with a chain (56). The transmission mechanism (514) drives the transmission shaft (512) to rotate, thereby driving the head wheel (511) and the chain (56) to rotate.

4. The arc-shaped hot conveyor roller conveyor slag collection system according to claim 1, characterized in that: The arc-shaped track slag collection device (5) also includes a central chain support roller device (52), which includes a support roller (522) and a roller sleeve (521) fixed to the roller body of the support roller (522). The two ends of the roller shaft of the support roller (522) are tumbled and connected to the arc-shaped slag trough (59).

5. The arc-shaped hot conveyor roller conveyor slag collection system according to claim 1, characterized in that: The arc-shaped track slag collection device (5) also includes a tail tensioning device (54), which includes a tension mounting base (541), a tensioning plate (542), a lead screw (543), a tensioning slide (544), a tail wheel (545), a tensioning shaft (546), a bushing (547), a rotating bearing (548), and a shaft end baffle (549). The tension mounting base (541) has a longitudinal elongated slide (5411), and the tail wheel (545) cooperates with the rotating bearing (548) and is fixed to the tensioning shaft. On 546), the tensioning shaft (546) is connected and fixed to the tensioning slide (544) through the shaft end baffle (549); the tensioning slide (544) includes a slider (5442) and a lead screw connecting block (5441). The slider (5442) has a stepped cross section, is symmetrically arranged, and is stuck in the long slide (5411). One end of the lead screw (543) is fixedly connected to the lead screw connecting block (5441). The tensioning plate (542) is fixed to the tensioning mounting base (541) by bolts; the tail wheel (545) is meshed with the chain (56).

6. The arc-shaped hot conveyor roller conveyor slag collection system according to claim 1, characterized in that: The arc-shaped track slag collection device (5) consists of two or more sections and is adapted to different arc-shaped sections of the arc-shaped hot conveying roller conveyor (1). A section chute guide plate (57) is fixed between two adjacent sections of the arc-shaped track slag collection device (5).

7. A method for collecting steel slag from an arc-shaped hot conveyor roller conveyor slag collection system according to claim 1, characterized in that: When steel slag is generated on the arc-shaped hot conveying roller (1), it slides down into the arc-shaped steel slag trough (59) through the guide of the conical chute (2), driving the scraper device (55) to perform a circular reciprocating motion, thereby scraping the steel slag that falls to the bottom of the arc-shaped steel slag trough (59) into the ash hopper (58) at the end.

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