Cutting and dust removal equipment for scrap steel recycling

Abstract

The present application relates to scrap steel cutting dust treatment technical field, disclose a kind of cutting dust removal equipment of scrap steel recovery, including shovel-like wall, the bottom surface in the wall is equipped with 2 first grooves of transverse arrangement and 2 second grooves of symmetrical arrangement in 2 first groove clearance, the stone for placing the scrap steel of bearing is placed in the second groove;Two groups of symmetrical arrangement guide rail assembly are installed in the first groove, the guide rail assembly is rotatably connected with the roller assembly, the roller assembly is installed with the fume hood, the fume hood is driven along guide rail assembly displacement by driver;When the fume hood deviates from the second groove, cooperate with travelling crane to hoist scrap steel into the second groove;When the fume hood is located in the second groove directly above, adapt flame cutting torch to cut scrap steel;The equipment is reliable in sealing, and smoke gas collection efficiency is high, and waste heat can be recycled, realizes dust standard discharge, operation is stable and flexible, and safety and energy saving environmental protection are excellent.

Description

Technical Field

[0001] This invention relates to the field of waste steel cutting fume treatment technology, and particularly to a waste steel recycling cutting dust removal device. Background Technology

[0002] As one of the core raw materials of the steel industry, scrap steel plays a crucial role in resource recycling and low-carbon development, and its efficient recycling and processing has become an important direction for the transformation and upgrading of the steel industry. Steel companies' self-produced scrap steel (such as H-beams, rails, and various irregularly shaped scrap steel) is mostly large, heavy, or irregular pieces exceeding the standards for direct remelting. These pieces have a wide size range (some reaching 12.5 meters in length, with individual dimensions exceeding 2 meters for irregularly shaped pieces), and their materials include ordinary carbon steel, manganese steel, and special alloys. Because they cannot be directly processed by mechanical means such as crushers and shears, flame cutting has become the mainstream processing method.

[0003] However, existing scrap steel cutting and related dust removal technologies still have the following limitations: the smoke is easily diffused during scrap steel cutting, there is interference between the scrap steel hoisting and cutting operation space, and the dust removal effect is poor due to the poor sealing between the smoke hood and the working surface. Summary of the Invention

[0004] The purpose of this invention is to provide a cutting and dust removal device for scrap steel recycling, which solves the problems of easy diffusion of flue gas and interference between scrap steel hoisting and cutting operations mentioned in the background art.

[0005] The technical solution adopted in this invention is as follows: A cutting and dust removal device for scrap steel recycling includes a bucket-shaped wall. The bottom surface of the wall has two horizontally arranged first grooves and two symmetrically arranged second grooves between the two first grooves. The second grooves are used to place stones that support the scrap steel. Two sets of symmetrically arranged guide rail assemblies are installed in the first grooves. Roller assemblies are tumblingly connected to the guide rail assemblies, and smoke hoods are installed on the roller assemblies. The smoke hoods are driven to move along the guide rail assemblies by a driver. The smoke hoods include a frame welded from several square steel bars. Steel plates are connected to the four side walls and the top surface of the frame. A door opening is reserved on the front side of the frame, and two symmetrically arranged smoke holes are reserved on the top surface, connected to a V-shaped groove-shaped top cover for covering the smoke holes. The bottom edge of the smoke hood is fitted with a clearance between it and the bottom surface of the wall. When the smoke hood deviates from the second groove, a crane is used to hoist the scrap steel into the second groove. When the smoke hood is directly above the second groove, a flame cutter is used to cut the scrap steel.

[0006] The roller assembly includes a U-shaped first wheel seat, on which a first roller is rotatably connected. The surface of the first roller is provided with an anti-detachment flange, which engages with the edge of the first track.

[0007] The actuator is any one of the following: a hydraulic cylinder, the tail end of which is connected to the wall and the piston end of which is connected to the smoke hood; a motor, which drives the first roller of the roller assembly; a winch, which is fixed to the wall and whose traction rope is connected to the smoke hood.

[0008] The side wall of the second flue is connected to two first branch pipes corresponding to the smoke holes. The free end of the first branch pipe is connected to a cover. The inner wall of the cover is connected to a first guide rod. A sliding plate is slidably connected to the first guide rod. A steel brush roller for unblocking the smoke holes is rotatably connected to the sliding plate. The steel brush roller is driven by a second motor. A sixth telescopic rod is connected to the second motor. The sixth telescopic rod is connected to the cover.

[0009] A first flue is fixedly connected to the top cover. A second flue is connected to the free end of the first flue. An openable and closable cover is connected to both ends of the second flue. An inner tube is rotatably connected to the inner wall of the second flue, and a third flue is fixedly connected to the inner end of the inner tube. The cover includes a second ring seat, on which a first ring is connected. The inner diameter of the first ring is larger than the diameter of the inner tube. A third carrier is connected to the outer wall of the first ring. A worm gear mechanism driven by a third motor is mounted on the third carrier. Six equally angled second guides are connected to the first ring. The second guide rod is rotatably connected to a second ring. The outer wall of the second ring is connected to a gear ring that drives a worm gear mechanism. The inner wall of the second ring is hinged to an arc-shaped seventh link arranged at equal angles. The free end of the seventh link is hinged to a petal-shaped plate. Six petal-shaped plates form a ring with an inner hole that fits the third flue. The petal-shaped plates are hinged to the first ring. A limiting ring is connected to the petal-shaped plates. The diameter of the limiting ring is larger than the diameter of the inner tube. The outer wall of the limiting ring is provided with a notch groove to restrict the seventh link. When the seventh link abuts against the notch groove, the six petal-shaped plates close the second flue.

[0010] The top surface of the support plate of the guide rail assembly is connected to a second track. The top surface of the second track has a first groove, and the side surface has a second groove. The roller assembly includes a fourth carrier, the bottom surface of which is connected to a first short shaft. A U-shaped second wheel seat is rotatably connected to the first short shaft. A second short shaft is rotatably connected to the second wheel seat. A third short shaft is connected in the middle of the second short shaft. The two ends of the third short shaft are connected to second rollers that fit the first groove. The roller assembly also includes two fifth carriers. A third wheel seat is hinged to the side of each fifth carrier. A third roller that fits the second groove is rotatably connected to the third wheel seat. A top frame is connected to the third wheel seat. A telescopic spring is connected to the top frame and is connected to the fifth carrier.

[0011] The beneficial effects of this invention are as follows: This scrap steel recycling and cutting dust removal equipment, through the cooperation of a bucket-shaped wall and a movable fume hood, realizes the spatial switching between scrap steel hoisting and cutting operations, reducing fume leakage; the bidirectional adjustment structure of the guide rail assembly ensures smooth movement, and multiple drive modes enhance adaptability; folding doors and baffles enhance sealing to block wind, and the air regulating plate can flexibly adjust the internal space and recover waste heat; the flue sealing and automatic unblocking structure ensures stable exhaust of fume, multi-stage dust removal achieves efficient dust separation and meets emission standards, and special roller components enhance obstacle-crossing ability, thus improving overall dust removal efficiency, operational safety, and energy conservation and environmental protection. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of this application.

[0013] Figure 2 This is a top view of the wall structure.

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the smoke hood.

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the frame.

[0016] Figure 5 This is a side view of the guide rail assembly.

[0017] Figure 6 This is a side view sectional structural diagram of the first adjustment seat.

[0018] Figure 7 This is a schematic diagram of the three-dimensional structure of the baffle.

[0019] Figure 8 This is a three-dimensional structural diagram of the first slide rail.

[0020] Figure 9 This is a schematic diagram of the main structure of a folding door.

[0021] Figure 10 This is a three-dimensional structural diagram of the first door panel.

[0022] Figure 11 This is a schematic diagram of the main sectional view of the truss structure.

[0023] Figure 12 This is a schematic diagram of the three-dimensional structure of the folding frame.

[0024] Figure 13 This is a side view cross-sectional diagram of the heat exchange channel.

[0025] Figure 14 This is a schematic diagram of the three-dimensional structure of the fixed tube.

[0026] Figure 15This is a side view sectional diagram of the first flue.

[0027] Figure 16 This is a schematic diagram of the main cross-sectional structure of the inner tube.

[0028] Figure 17 This is a schematic diagram of the three-dimensional structure of the inner tube.

[0029] Figure 18 This is a schematic diagram of the front cross-sectional structure of the first ring seat.

[0030] Figure 19 This is a schematic diagram of the three-dimensional structure of the compression bar.

[0031] Figure 20 This is a three-dimensional structural diagram of a cyclone separator and a bag filter.

[0032] Figure 21 This is a three-dimensional structural diagram of the first branch pipe.

[0033] Figure 22 This is a side view cross-sectional diagram of the first branch pipe.

[0034] Figure 23 This is a three-dimensional structural diagram of the hood.

[0035] Figure 24 This is a schematic diagram of the front view cross-section of the first ring.

[0036] Figure 25 This is a schematic diagram of the three-dimensional structure of the second ring.

[0037] Figure 26 This is a schematic diagram of the three-dimensional structure of the lobular plate.

[0038] Figure 27 This is a side view of the second track.

[0039] Figure 28 This is a three-dimensional structural diagram of the second roller.

[0040] Figure 29 This is a three-dimensional structural diagram of the third roller.

[0041] In the diagram: 1. Wall; 2. First groove; 3. Second groove; 4. Stone; 5. Guide rail assembly; 6. Roller assembly; 7. Smoke hood; 8. Driver; 9. Frame; 10. Square steel; 11. Steel plate; 12. Door opening; 13. Smoke vent; 14. Top cover; 15. Support base; 16. First bolt; 17. First adjusting seat; 18. Second adjusting seat; 19. Second bolt; 20. Support plate; 21. Fastening fastener; 22. First track; 23. First wheel seat; 24. First roller; 25. Anti-detachment flange; 30. First slide rail; 31. First slide block; 32. Baffle; 33. First telescopic rod; 4. Folding door; 35. First door panel; 36. Second door panel; 37. Hinge; 38. Second telescopic rod; 39. Limiting rod; 40. Guide plate; 41. Truss; 42. Six-axis robotic arm; 43. Flame cutter; 44. Air regulating plate; 45. Folding frame; 46. Third telescopic rod; 47. First connecting rod; 48. Second connecting rod; 49. Third connecting rod; 50. Fourth connecting rod; 51. Fifth connecting rod; 52. Sixth connecting rod; 53. Heat exchange channel; 54. Fixed pipe; 55. V-shaped joint; 56. Pressure ring; 57. First flue; 58. Fourth telescopic rod; 59. Second flue; 60. End cover; 61. 62. Inner tube; 63. Ring groove; 64. Smoke hole; 65. Sealing ring groove; 66. Sealing ring body; 67. Third flue; 68. First ring seat; 69. Annular scraper; 70. First carrier; 71. Pressure rod; 72. Second carrier; 73. Fifth telescopic rod; 74. Electrically controlled valve; 75. Cyclone separator; 76. Fourth flue; 77. Bag filter; 78. Centrifugal fan; 79. Chimney; 80. First branch pipe; 81. Cover; 82. First guide rod; 83. Slide plate; 84. Steel brush roller; 85. Second motor; 86. Sixth telescopic rod; 87. Machine cover; 88. Second ring seat; 89. First ring; 90. Third carrier; 91. Worm gear mechanism; 92. Third motor; 93. Second guide rod; 94. Second ring; 95. Gear ring; 96. Seventh connecting rod; 97. Petal plate; 98. Limiting ring; 99. Notch groove; 100. Second track; 101. First groove; 102. Second groove; 103. Fourth carrier; 104. First short shaft; 105. Second wheel seat; 106. Second short shaft; 107. Third short shaft; 108. Second roller; 109. Fifth carrier; 110. Third wheel seat; 111. Third roller; 112. Top frame; 113. Telescopic spring. Detailed Implementation

[0042] The embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms “first,” “second,” “third,” “fourth,” “fifth,” “sixth,” “seventh,” “eighth,” “ninth,” and “tenth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] like Figure 1-4As shown in Embodiment 1, a cutting and dust removal device for scrap steel recycling includes a wall 1, which is shaped like a bucket. The inner bottom surface of the wall 1 has two horizontally arranged first grooves 2 and two symmetrically arranged second grooves 3 located between the two first grooves 2. Stones 4 for supporting scrap steel are placed within the second grooves 3. Two sets of symmetrically arranged guide rail assemblies 5 are installed within the first grooves 2. Roller assemblies 6 are rolledly connected to the guide rail assemblies 5. A smoke collection hood 7 is installed on the roller assemblies 6. The smoke collection hood 7 is displaced by a driver 8. When the smoke collection hood 7 deviates from the second grooves 3, it cooperates with a traveling crane to remove the scrap steel. When the steel is hoisted into the second groove 3 and the fume hood 7 is directly above the second groove 3, the scrap steel can be cut using a flame cutter 43. The fume hood 7 includes a frame 9, which is a frame structure welded from several square steel bars 10. Steel plates 11 are connected to the four side walls of the frame 9. A door hole 12 is reserved on the front side of the frame 9. A steel plate 11 is connected to the top surface of the frame 9. Two symmetrically arranged smoke holes 13 are reserved on the top surface of the frame 9. Two symmetrically arranged top covers 14 are connected to the top surface of the frame 9. The top covers 14 are used to cover the smoke holes 13. The top covers 14 are V-shaped grooves. The bottom edge of the fume hood 7 is fitted with the inner bottom surface of the wall 1 with a clearance. The technical problems that can be solved are: easy diffusion of smoke during scrap steel cutting, interference between scrap steel hoisting and cutting operation space, and poor dust removal effect due to poor sealing between the fume hood 7 and the working surface. Movement Process: The driver 8 drives the smoke hood 7 to roll along the guide rail assembly 5. When the smoke hood 7 deviates from the second groove 3, the trolley lifts the scrap steel onto the stones 4 inside the second groove 3. After the smoke hood 7 moves directly above the second groove 3, the flame cutter 43 is used to cut the scrap steel. The bottom edge of the smoke hood 7 and the inner bottom surface of the wall 1 form a smoke collection space with a gap fit. Beneficial Effects: It realizes the spatial switching between scrap steel lifting and cutting operations, avoiding interference. The smoke hood 7 can concentrate the cutting smoke, improving the targeting of dust removal. The bucket-shaped wall 1 and the gap fit structure reduce smoke leakage and improve dust removal efficiency.

[0047] Lifting Adaptation Design: This equipment is compatible with existing electromagnet-equipped overhead cranes in the factory area, eliminating the need for additional lifting equipment. Through a structural design where the fume hood shifts along the guide rail away from the second groove, it provides interference-free lifting space for existing electromagnet-equipped overhead cranes, adapting to their lifting device dimensions and operating stroke to meet the needs of scrap steel lifting. The use of electromagnets for scrap steel lifting is common knowledge in the field, and this application does not impose additional limitations on existing lifting equipment and principles.

[0048] Wall structure selection: Conventional reinforced concrete structures widely used in industrial settings are sufficient for the walls. This structure possesses mature load-bearing capacity, stability, and impact resistance, meeting the requirements of scrap steel placement and cutting environments. No additional restrictions on special materials or performance parameters are imposed, ensuring stable equipment operation while reducing construction costs, thus aligning with the practical design principles of industrial equipment.

[0049] like Figure 5 and 6 As shown, as an optimization of Embodiment 1, the guide rail assembly 5 includes a support seat 15 disposed in the first groove 2. Two support seats 15 are symmetrically arranged. The top surface of the support seat 15 is connected to a first adjusting seat 17 by a first bolt 16. A second adjusting seat 18 is threadedly connected to the first adjusting seat 17. The top surface of the second adjusting seat 18 is spherical. A support plate 20 is connected to the top surface of the second adjusting seat 18 by a second bolt 19. The support plate 20 is adapted to the spherical surface of the second adjusting seat 18. The top surface of the support plate 20 is connected to a first track 22 by a clamping fastener 21. The first track 22 is an I-beam. Technical problems that can be solved: difficulty in adjusting the guide rail installation accuracy, uneven track stress leading to movement jamming or increased wear, and poor compatibility between the track and the roller assembly 6. Movement process: The height of the first adjusting seat 17 is adjusted by the first bolt 16. The second adjusting seat 18 is threadedly connected to the first adjusting seat 17 to achieve fine adjustment. The spherical top surface of the second adjusting seat 18 is adapted to the support plate 20 to compensate for installation angle deviation. Beneficial effects: It allows for bidirectional fine-tuning of the guide rail height and angle, ensuring installation accuracy; the I-beam rail enhances load-bearing capacity, ensuring smooth movement of the smoke hood 7.

[0050] like Figure 5 As shown, as an optimization of Embodiment 1, the roller assembly 6 includes a first wheel seat 23, which is U-shaped. A first roller 24 is rotatably connected to the first wheel seat 23, and the surface of the first roller 24 has an anti-derailment flange 25. The technical problem solved is the easy derailment of the rollers when rolling along the track and the poor motion stability. The beneficial effect is that the anti-derailment flange 25 effectively prevents the rollers from derailing, improving the safety and reliability of the smoke hood 7 during displacement.

[0051] like Figure 1 As shown, as an optimization of Embodiment 1, the driver 8 is a hydraulic cylinder, the tail end of the driver 8 is connected to the wall 1, and the piston end of the driver 8 is connected to the smoke hood 7; or the driver 8 can be a motor, the motor drives the first roller 24 of the roller assembly 6, or the driver 8 can be a winch, the winch is fixed to the wall 1, and the traction rope is connected to the smoke hood 7.

[0052] like Figure 7 and 8As shown, as an optimization of Embodiment 1, the sidewall of the smoke hood 7 is equipped with symmetrically arranged first slide rails 30. A first slide block 31 is slidably connected to the first slide rail 30, and a baffle 32 is installed on the first slide block 31. The baffle 32 is driven by a first telescopic rod 33, the tail end of which is connected to the smoke hood 7. The baffle 32 abuts against the first groove 2. The front and rear baffles 32 reduce the entry of wind. The technical problem solved is the problem of wind entering the smoke hood 7 causing smoke diffusion and reduced dust removal efficiency. Movement process: The first telescopic rod 33 extends and retracts, driving the first slide block 31 to slide along the first slide rail 30, causing the baffle 32 to move synchronously, so that the baffle 32 abuts against the first groove 2. The front and rear baffles 32 form a barrier, blocking external wind from entering. Beneficial effects: Reduces wind interference with the airflow inside the smoke hood 7, prevents smoke diffusion, improves smoke collection efficiency, and ensures stable dust removal performance.

[0053] like Figure 9 and Figure 10 As shown, as an optimization of Embodiment 1, the smoke hood 7 is equipped with a folding door 34 that closes the door opening 12. The folding door 34 includes a first door panel 35 and a second door panel 36, which are hinged together by a hinge 37. The upper end of the first door panel 35 is hinged to the smoke hood 7. A second telescopic rod 38 is hinged to the first door panel 35 and is also hinged to the smoke hood 7. A limit rod 39 is connected to the side of the second door panel 36. A guide plate 40 is connected to the smoke hood 7, and the guide plate 40 is slidably connected to the limit rod 39. Driving the second telescopic rod 38 causes the first door panel 35 to rotate, and the second door panel 36 slides along the guide plate 40. The first door panel 35 and the second door panel 36 form a V-shape, and the door opening 12 is opened. This solves the technical problems of poor sealing of the door opening 12 of the smoke hood 7 leading to smoke leakage and the large space occupied by the opening mechanism affecting operation. Movement Process: The second telescopic rod 38 is extended and retracted, causing the first door panel 35 to rotate around the hinge point with the smoke hood 7. The second door panel 36 slides along the guide plate 40 via the limiting rod 39. When the first door panel 35 and the second door panel 36 form a V-shape, the door opening 12 opens. The second telescopic rod 38 is then driven in the opposite direction, the first door panel 35 returns to its original position, and the second door panel 36 slides with the guide plate 40, closing the door opening 12. Beneficial Effects: The V-shaped door structure saves operating space, does not interfere with scrap steel hoisting and cutting operations, provides a reliable seal after the door panels are closed, reduces smoke leakage, and improves dust removal efficiency.

[0054] like Figure 11As shown, as an optimization of Embodiment 1, a truss 41 is installed inside the fume hood 7, and a six-axis robotic arm 42 is mounted on the truss 41. A flame cutting torch 43 is mounted at the head end of the six-axis robotic arm 42. The technical problems solved are: low cutting efficiency and poor accuracy when manually operating the flame cutting torch 43, and safety risks to operators exposed to high-temperature flue gas. Movement process: The truss 41 drives the six-axis robotic arm 42 to move along a set trajectory. The six-axis robotic arm 42 adjusts its posture through multi-joint linkage, driving the flame cutting torch 43 to precisely align with the scrap steel cutting area, achieving automated cutting operations. Beneficial effects: Automated cutting improves operational efficiency and cutting accuracy, avoids direct contact between personnel and high temperatures and flue gas, ensures operational safety, and reduces labor costs.

[0055] like Figure 11 and 12 As shown, as an optimization of Embodiment 1, symmetrically arranged air regulating plates 44 are installed inside the smoke hood 7. The top and side surfaces of the air regulating plates 44 are in contact with the inner wall of the frame 9. Folding frames 45 are installed on the opposite surfaces of the two air regulating plates 44. The free ends of the folding frames 45 are connected to the inner wall of the smoke hood 7. A third telescopic rod 46 for driving the air regulating plates 44 is installed on the smoke hood 7. The folding frame 45 includes a first connecting rod 47 and a second connecting rod 48 hinged to the air regulating plates 44. The free end of the first connecting rod 47 is hinged to a third connecting rod 49, and the free end of the second connecting rod 48 is hinged to a fourth connecting rod 50. The third connecting rod 49 and the fourth connecting rod 50 are connected to... The fume hood 7 is hinged. The first connecting rod 47 is parallel to the third connecting rod 49, and the second connecting rod 48 is also parallel to the third connecting rod 49. A fifth connecting rod 51 is hinged to the hinge point of the first connecting rod 47 and the third connecting rod 49. The free end of the fifth connecting rod 51 is hinged to the middle of the first connecting rod 47. A sixth connecting rod 52 is hinged to the hinge point of the second connecting rod 48 and the fourth connecting rod 50. The free end of the sixth connecting rod 52 is hinged to the middle of the fourth connecting rod 50. The fifth connecting rod 51 is parallel to the sixth connecting rod 52. By setting a retractable air regulating plate 44, the internal space of the fume hood 7 can be changed to accommodate different amounts of scrap steel added, avoiding wasted airflow. This solves the technical problems of: the fixed internal space of the fume hood 7, which cannot adapt to different amounts of scrap steel added, leading to wasted airflow and unutilized low-quality waste heat generated during cutting. Movement Process: The third telescopic rod 46 extends and retracts, driving the air regulating plate 44 to move. The folding frame 45 extends and retracts via a linkage, adjusting the position of the air regulating plate 44 to change the internal space of the smoke hood 7. The heat generated during cutting is exchanged through the serpentine heat exchange channel 53 inside the air regulating plate 44. Beneficial Effects: The internal space of the smoke hood 7 can be flexibly adjusted according to the amount of scrap steel added, avoiding wasted airflow and improving flue gas collection efficiency; the serpentine heat exchange channel 53 enables the recovery of low-quality waste heat, saving energy and protecting the environment.

[0056] like Figure 13As shown, as an optimization of Embodiment 1, the air regulating plate 44 has a serpentine heat exchange channel 53 inside, which can exchange heat in the heat concentration area and realize the utilization of low-quality waste heat.

[0057] like Figure 14-17 As shown, as an optimization of Embodiment 1, considering that the position of the smoke hood 7 needs to be moved, a fixed pipe 54 is connected to the top cover 14. The upper end of the fixed pipe 54 has a V-shaped interface 55, and a pressure ring 56 is inserted into the interface. The inner hole of the pressure ring 56 is connected to the first flue 57. The first flue 57 is L-shaped. A fourth telescopic rod 58 is hinged to the side wall of the first flue 57. The tail end of the fourth telescopic rod 58 is hinged to the wall 1. The free end of the first flue 57 is connected to the second flue 59. The two ends of the second flue 59 are connected to the end caps 60. The inner wall of the second flue 59 is rotatably connected to the inner tube 61. The side wall of the inner tube 61 has an annular groove 62. Smoke holes 63 are arranged at 90° intervals on the annular groove 62. The side wall of the inner tube 61 has a sealing ring groove 64. A sealing ring body 65 is installed in the sealing ring groove 64. The inner end of the inner tube 61 is fixedly connected to the third flue 66. The third flue 66 is rotatably connected to the end cap 60. Technical problems that can be solved: Poor sealing during the movement of the fume hood 7 leading to flue gas leakage, and the inability of the flue to adapt to the displacement of the fume hood 7. Movement process: When the fume hood 7 moves, the L-shaped first flue 57 is driven to rotate via the fourth telescopic rod 58, causing the pressure ring 56 to disengage from the fixed pipe 54, and the first flue 57 to separate from the fume hood 7. Beneficial effects: The separate installation of the flue and the fume hood 7 does not interfere with scrap steel hoisting and cutting operations, ensures reliable sealing, prevents flue gas leakage, and guarantees a stable discharge of flue gas to the dust removal system.

[0058] like Figure 18 As shown, as an optimization of Embodiment 1, the end face of the inner tube 61 is connected to a first annular seat 67. The side wall of the first annular seat 67 has an annular groove 62. An annular scraper 68 is slidably connected within the annular groove 62. The cross-sectional shape of the annular scraper 68 is pointer-shaped. A first spring 69 is installed within the annular groove 62. The first spring 69 presses the annular scraper 68 against the inner wall of the second flue 59. The technical problem that can be solved is the problem of dust accumulation on the inner wall of the second flue 59, which affects the operating efficiency of the dust removal system. Beneficial effects: Automatically cleans the dust accumulation on the inner wall of the flue, ensuring smooth sliding of the second flue 59, and adapting to the structure of the first flue 57 in Embodiment 2.

[0059] like Figure 19As shown, as an optimization of Embodiment 1, the side wall of the fixed pipe 54 is connected to a first carrier 70, and a pressure rod 71 is hinged to the first carrier 70. The pressure rod 71 is U-shaped and is used to press the pressure ring 56 to prevent flue gas leakage. A second carrier 72 is connected to the first carrier 70, and a fifth telescopic rod 73 is hinged to the second carrier 72. The free side of the fifth telescopic rod 73 is hinged to the waist of the pressure rod 71. The technical problem that can be solved is that the pressure ring 56 is not securely fixed, leading to flue gas leakage at the V-shaped interface 55. Movement process: The fifth telescopic rod 73 extends and retracts, driving the pressure rod 71 to rotate around the hinge point of the first carrier 70. The pressure rod 71 presses the pressure ring 56, enhancing the fit between the pressure ring 56 and the fixed pipe 54 and the first flue 57. The fifth telescopic rod 73 is driven in the opposite direction, and the pressure rod 71 is released, facilitating the disassembly and maintenance of the flue. Beneficial effects: Improves the reliability of the pressure ring 56 fixation, further optimizes the sealing effect, reduces flue gas leakage, and facilitates equipment maintenance.

[0060] like Figure 20 As shown, as an optimization of Embodiment 1, one end of the third flue 66 is closed, and the other end of the third flue 66 is connected to an electrically controlled valve 74. The other end of the electrically controlled valve 74 is connected to a cyclone separator 75. The outlet end of the cyclone separator 75 is connected to a fourth flue 76. The free end of the fourth flue 76 is connected to a bag filter 77. The outlet end of the bag filter 77 is connected to a centrifugal fan 78. The outlet end of the centrifugal fan 78 is connected to a chimney 79. The technical problem that can be solved is the ineffective separation of dust particles in the cutting flue gas, resulting in substandard emissions and poor dust removal efficiency. The process is as follows: The flue gas enters the cyclone separator 75 through the third flue 66 and the electrically controlled valve 74, where large dust particles are initially separated; then it enters the bag filter 77 through the fourth flue 76, where fine dust particles are filtered; the centrifugal fan 78 provides negative pressure, discharging the purified flue gas through the chimney 79. Beneficial effects: The multi-stage dust removal structure achieves efficient separation of large and fine dust particles, resulting in significant dust removal performance. Emissions meet environmental protection standards, avoiding environmental pollution.

[0061] like Figure 21 and 22As shown, as an optimization of Embodiment 1, the side wall of the second flue 59 is connected to a first branch pipe 80. There are two first branch pipes 80, each corresponding to a smoke hole 63. The free end of each first branch pipe 80 is connected to a cover 81. The inner wall of the cover 81 is connected to a first guide rod 82. A sliding plate 83 is slidably connected to the first guide rod 82. A steel brush roller 84 is rotatably connected to the sliding plate 83. The steel brush roller 84 is used to unclog the smoke hole 63. The steel brush roller 84 is driven by a second motor 85. A sixth telescopic rod 86 is connected to the second motor 85 and is connected to the cover 81. The technical problem solved is that the smoke hole 63 of the inner pipe 61 is easily clogged by dust, leading to poor flue gas flow and affecting dust removal efficiency. The movement process is as follows: The sixth telescopic rod 86 extends and retracts, driving the sliding plate 83 to slide along the first guide rod 82, causing the steel brush roller 84 to approach the smoke hole 63; the second motor 85 drives the steel brush roller 84 to rotate, thus unclogging and cleaning the smoke hole 63. Beneficial effects: Automatically clears blockages in the smoke vents 63, ensuring smooth smoke flow, maintaining the efficient operation of the dust removal system, and reducing manual cleaning costs.

[0062] like Figure 23-26As shown, in Embodiment 2, unlike Embodiment 1, a first flue 57 is fixedly connected to the top cover 14. A second flue 59 is connected to the free end of the first flue 57. An openable and closable cover 87 is connected to both ends of the second flue 59. An inner tube 61 is rotatably connected to the inner wall of the second flue 59, and a third flue 66 is fixedly connected to the inner end of the inner tube 61. The cover 87 includes a second ring seat 88, on which a first ring 89 is connected. The inner diameter of the first ring 89 is larger than the diameter of the inner tube 61. A third carrier 90 is connected to the outer wall of the first ring 89. A worm gear mechanism 91 is mounted on the third carrier 90 and driven by a third motor 92. Six second guide rods 93 arranged at equal angles are connected to the first ring 89. The second guide rods 93 rotate... A second ring 94 is connected, and a gear ring 95 that drives the worm gear mechanism 91 is connected to the outer wall of the second ring 94. A seventh link 96 arranged at equal angles is hinged to the inner wall of the second ring 94. The seventh link 96 is arc-shaped, and a petal plate 97 is hinged to the free end of the seventh link 96. Six petal plates 97 form a ring. The inner hole of the petal plate 97 is adapted to the third flue 66. The petal plate 97 is hinged to the first ring 89. A limiting ring 98 is connected to the petal plate 97. The diameter of the limiting ring 98 is larger than the diameter of the inner tube 61. The outer wall of the limiting ring 98 has a notch 99 that restricts the seventh link 96. When the seventh link 96 abuts against the notch 99, the six petal plates 97 close the second flue 59. After the six petal plates 97 are opened, the second flue 59 can move laterally. Technical problems that can be solved: Poor sealing during the movement of the smoke hood 7 leading to smoke leakage, and the inability of the flue to adapt to the displacement of the smoke hood 7. Movement process: The third motor 92 drives the worm gear mechanism 91, causing the gear ring 95 and the second ring 94 to rotate; the second ring 94, through the seventh connecting rod 96, drives the petal plates 97 to rotate around the hinge point of the first ring 89. When the seventh connecting rod 96 abuts against the notch 99 of the limiting ring 98, the six petal plates 97 close, sealing the second flue 59; when rotating in the opposite direction, the petal plates 97 open, allowing the second flue 59 to move laterally. Beneficial effects: The machine cover 87 has a high degree of automation in opening and closing, reliable sealing, and adapts to the lateral movement requirements of the second flue 59, improving the flexibility of the equipment and the smoke sealing effect.

[0063] like Figure 27As shown in Embodiment 3, unlike Embodiment 1, the top surface of the support plate 20 of the guide rail assembly 5 is connected to a second track 100. The top surface of the second track 100 has a first groove 101, and the side surface of the second track 100 has a second groove 102. Technical problems solved: In Embodiment 1, the roller assembly 6 has poor obstacle-crossing ability, and the movement is choppy and unstable when there are impurities or slight protrusions in the track. Movement process: The second roller 108 rolls along the first groove 101, and the second wheel seat 105 can deflect around the first short axis 104, allowing the second roller 108 to shift left and right to cross obstacles; the third roller 111 rolls along the second groove 102, and the third wheel seat 110 can deflect. The telescopic spring 113 buffers vibration, ensuring that the third roller 111 fits snugly against the second groove 102. Beneficial effects: The roller assembly 6 has good obstacle-crossing ability, can adapt to complex track conditions, moves more smoothly, reduces choppy phenomena, and improves the stability of the smoke hood 7 displacement and the service life of the equipment.

[0064] like Figure 28 As shown, the roller assembly 6 includes a fourth carrier 103, with a first short shaft 104 connected to the bottom surface of the fourth carrier 103. A second wheel seat 105 is rotatably connected to the first short shaft 104. The second wheel seat 105 is U-shaped and has a second short shaft 106 rotatably connected to it. A third short shaft 107 is connected in the middle of the second short shaft 106. Second rollers 108 are connected to both ends of the third short shaft 107. The second rollers 108 are adapted to the first groove 101. By setting the second rollers 108, which can be offset to the left and right, the roller assembly 6 has the ability to overcome obstacles.

[0065] like Figure 29 As shown, the roller assembly 6 also includes a fifth carrier 109, and there are two fifth carriers 109. A third wheel seat 110 is hinged to the side of the fifth carrier 109. A third roller 111 is rotatably connected to the third wheel seat 110. The third roller 111 is adapted to the second groove 102. A top frame 112 is connected to the third wheel seat 110. A telescopic spring 113 is connected to the top frame 112. The telescopic spring 113 is connected to the fifth carrier 109. By setting the deflectable third roller 111, the roller assembly 6 has the ability to overcome obstacles and the movement is smoother.

[0066] Although the present invention has been described in detail with reference to the foregoing examples, those skilled in the art can still make and modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cutting and dust removal device for scrap steel recycling, characterized in that, The wall (1) includes a bucket-shaped wall. The bottom surface of the wall (1) is provided with two horizontally arranged first grooves (2) and two symmetrically arranged second grooves (3) between the two first grooves (2). The second grooves (3) are used to place stones (4) that support scrap steel. Two sets of symmetrically arranged guide rail assemblies (5) are installed in the first grooves (2). Roller assemblies (6) are rolled on the guide rail assemblies (5). Smoke hoods (7) are installed on the roller assemblies (6). The smoke hoods (7) are driven to move along the guide rail assemblies (5) by a driver (8). The smoke hood (7) includes a frame (9) welded from several square steels (10). The frame (9) has steel plates (11) connected to its four sides and top surface. The front side of the frame (9) has a door hole (12) reserved. The top surface has two symmetrically arranged smoke holes (13) and is connected to a V-shaped groove top cover (14) for covering the smoke holes (13). The bottom edge of the smoke hood (7) is fitted with the inner bottom surface of the wall (1) with a clearance. When the smoke hood (7) is deviated from the second groove (3), it is used in conjunction with the overhead crane to transport scrap steel into the second groove (3); when the smoke hood (7) is directly above the second groove (3), it is used to cut scrap steel with a flame cutter (43); symmetrically arranged air regulating plates (44) are installed inside the smoke hood (7), the top and side surfaces of the air regulating plates (44) are in contact with the inner wall of the frame (9), and folding frames (45) are installed on the opposite sides of the two air regulating plates (44), the free ends of the folding frames (45) are connected to the inner wall of the smoke hood (7), and a third telescopic rod (46) for driving the air regulating plates (44) is installed on the smoke hood (7); the air regulating plates (44) are provided with serpentine heat exchange channels (53) inside. A fixed pipe (54) is connected to the top cover (14). The fixed pipe (54) has a V-shaped connector (55) at its upper end. A pressure ring (56) is inserted into the connector. An L-shaped first flue (57) is connected to the inner hole of the pressure ring (56). A fourth telescopic rod (58) is hinged to the side wall of the first flue (57). The tail end of the fourth telescopic rod (58) is hinged to the wall (1). A second flue (59) is connected to the free end of the first flue (57). End caps (60) are connected to both ends of the second flue (59). An inner tube (61) is rotatably connected to the inner wall of the second flue (59). An annular groove (62) is provided on the side wall of the inner tube (61). Smoke holes (63) are arranged at 90° intervals on the annular groove (62). A sealing ring groove (64) is provided on the side wall of the inner tube (61). A sealing ring body (65) is installed in the sealing ring groove (64). The inner end of the inner tube (61) is fixedly connected to a third flue (66). The third flue (66) is rotatably connected to the end cap (60). The side wall of the second flue (59) is connected to two first branch pipes (80) corresponding to the smoke holes (63). The free end of the first branch pipe (80) is connected to a cover (81). The inner wall of the cover (81) is connected to a first guide rod (82). A sliding plate (83) is slidably connected to the first guide rod (82). A steel brush roller (84) for unblocking the smoke holes (63) is rotatably connected to the sliding plate (83). The steel brush roller (84) is driven by a second motor (85). A sixth telescopic rod (86) is connected to the second motor (85). The sixth telescopic rod (86) is connected to the cover (81).

2. The cutting and dust removal equipment for scrap steel recycling according to claim 1, characterized in that, The guide rail assembly (5) includes a support seat (15) symmetrically arranged in the first groove (2). The top surface of the support seat (15) is connected to a first adjusting seat (17) by a first bolt (16). The first adjusting seat (17) is threaded to a second adjusting seat (18) with a spherical top surface. The top surface of the second adjusting seat (18) is connected to a support plate (20) adapted to the spherical surface by a second bolt (19). The top surface of the support plate (20) is connected to a first track (22) by a clamping fastener (21).

3. The cutting and dust removal equipment for scrap steel recycling according to claim 1, characterized in that, The smoke hood (7) is equipped with a symmetrically arranged first slide rail (30) on its side wall. A first slide block (31) is slidably connected to the first slide rail (30). A baffle (32) is installed on the first slide block (31). The baffle (32) is driven by a first telescopic rod (33). The tail end of the first telescopic rod (33) is connected to the smoke hood (7). The baffle (32) abuts against the first groove (2) to block the wild wind from entering.

4. The cutting and dust removal equipment for scrap steel recycling according to claim 1, characterized in that, The smoke hood (7) is equipped with a folding door (34) that closes the door hole (12). The folding door (34) includes a first door panel (35) and a second door panel (36) hinged together by a hinge (37). The upper end of the first door panel (35) is hinged to the smoke hood (7). A second telescopic rod (38) is hinged to the first door panel (35). The second telescopic rod (38) is hinged to the smoke hood (7). A limit rod (39) is connected to the side of the second door panel (36). A guide plate (40) is connected to the smoke hood (7) and is slidably connected to the limit rod (39). Driving the second telescopic rod (38) can make the first door panel (35) and the second door panel (36) open the door hole (12) in a V-shape.

5. The cutting and dust removal equipment for scrap steel recycling according to claim 1, characterized in that, A truss (41) is installed inside the smoke hood (7), and a six-axis robotic arm (42) is installed on the truss (41). A flame cutter (43) is installed at the head end of the six-axis robotic arm (42).

6. The cutting and dust removal equipment for scrap steel recycling according to claim 1, characterized in that, The end face of the inner tube (61) is connected to a first ring seat (67). The side wall of the first ring seat (67) is provided with a ring groove (62). A ring scraper (68) with a pointer-shaped cross section is slidably connected in the ring groove (62). A first spring (69) is installed in the ring groove (62). The first spring (69) squeezes the ring scraper (68) to abut against the inner wall of the second flue (59).

7. The cutting and dust removal equipment for scrap steel recycling according to claim 1, characterized in that, The side wall of the fixed tube (54) is connected to a first carrier (70), and a U-shaped pressure rod (71) is hinged on the first carrier (70). The pressure rod (71) is used to press the pressure ring (56). A second carrier (72) is connected to the first carrier (70), and a fifth telescopic rod (73) is hinged on the second carrier (72). The free end of the fifth telescopic rod (73) is hinged to the waist of the pressure rod (71).

8. The cutting and dust removal equipment for scrap steel recycling according to claim 1, characterized in that, One end of the third flue (66) is closed, and the other end is connected to an electric control valve (74). The other end of the electric control valve (74) is connected to a cyclone separator (75). The outlet end of the cyclone separator (75) is connected to a fourth flue (76). The free end of the fourth flue (76) is connected to a bag filter (77). The outlet end of the bag filter (77) is connected to a centrifugal fan (78). The outlet end of the centrifugal fan (78) is connected to a chimney (79).

9. The cutting and dust removal equipment for scrap steel recycling according to claim 1, characterized in that, The folding frame (45) includes a first link (47) and a second link (48) hinged to the air regulating plate (44). The free end of the first link (47) is hinged to a third link (49), and the free end of the second link (48) is hinged to a fourth link (50). Both the third link (49) and the fourth link (50) are hinged to the smoke hood (7), and the first link (47) is parallel to the third link (49), and the second link (48) is parallel to the fourth link (50). (50) Parallel; the hinge point of the first link (47) and the third link (49) is hinged to the fifth link (51), and the free end of the fifth link (51) is hinged to the middle of the first link (47); the hinge point of the second link (48) and the fourth link (50) is hinged to the sixth link (52), and the free end of the sixth link (52) is hinged to the middle of the fourth link (50), and the fifth link (51) and the sixth link (52) are parallel.

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