A reinforcing steel bar processing device for bridge repair and reinforcement engineering

Abstract

This invention proposes a steel bar processing equipment for bridge repair and reinforcement projects, belonging to the technical field of steel bar processing equipment for bridge engineering. Specifically, it discloses a support frame with coaxially arranged steel bar inlet and outlet. The internal assembly area of ​​the support frame has two sets of assembly shells, with a rotating shell rotatably installed between the two sets of assembly shells. The rotating shell has detachable baffles with inlet and outlet channels at both ends. An oxygen cutting structure is installed on the outer wall of the rotating shell, and a driving structure is provided on the outside of the assembly shell, which can synchronously drive the rotating shell and the oxygen cutting structure to perform a limited-angle circular motion to achieve circumferential cutting of the steel bar. A heat-conducting structure is provided inside the assembly shell, and a heat-conducting medium is built into the rotating shell. A closed-loop heat-conducting circulation loop is formed through the discharge pipe, the conveying structure, and the high-level inlet pipe. The heat circulation loop quickly removes the high temperature of cutting, so that the overall temperature of the steel bar does not change drastically, thus protecting the mechanical properties of the steel bar base material.

Description

Technical Field

[0001] This invention relates to the field of steel bar processing equipment for bridge engineering, and more specifically, to a steel bar processing equipment for bridge repair and reinforcement projects. Background Technology

[0002] In the repair of existing bridge defects and the reinforcement and expansion of the main structure of bridges, a large number of customized reinforcing steel bars need to be cut. The quality of the steel bar cutting process directly determines the overall load-bearing performance and service life of the bridge. At present, open oxygen cutting equipment is still commonly used on construction sites to complete the steel bar cutting operation.

[0003] Oxygen cutting is a thermal cutting process that generates temperatures of thousands of degrees Celsius during the cutting process. Existing equipment does not have a dedicated heat dissipation structure, and the cutting heat continues to accumulate around the cut surface of the steel bar. This directly changes the local metallographic structure of the steel bar base material, causing local hardening and embrittlement of the steel bar. This significantly reduces the tensile and compressive mechanical properties of the reinforced steel bar, creating potential safety hazards such as cracking and insufficient load-bearing capacity in the later stages of bridge construction. Summary of the Invention

[0004] The purpose of this invention is to provide a steel bar processing device for bridge repair and reinforcement projects, which addresses the shortcomings of existing technologies and solves the problems mentioned in the background.

[0005] The technical solution of this invention is implemented as follows: This invention provides a steel bar processing equipment for bridge repair and reinforcement projects, including a support frame, an assembly area inside the support frame, and inlets and outlets for steel bars to pass through on both sides of the support frame, with the two inlets and outlets being coaxially arranged. A rotating shell is rotatably installed within the assembly area. Both ends of the rotating shell are detachably equipped with baffles. The side walls of the baffles are provided with inlet and outlet channels coaxial with the inlet and outlet. Two assembly shells are installed within the assembly area, and the rotating shell is rotatably positioned between the two assembly shells. An oxygen cutting structure is installed on the outer side wall of the rotating shell. The cutting end of the oxygen cutting structure penetrates the rotating shell and is placed inside the rotating shell. One of the assembly shells has a drive structure on its outer side wall. The drive structure is used to drive the oxygen cutting structure and the rotating shell to make a finite angle circular motion along the outer periphery of the assembly shell. The assembly shell is equipped with a heat-conducting structure; the rotating shell contains a heat-conducting medium, and the outer wall of the rotating shell is equipped with a discharge pipe. The output end of the discharge pipe is equipped with a conveying structure that communicates with the heat-conducting structure. The conveying structure is used to transport the heat-conducting medium in the rotating shell to the heat-conducting structure. The output end of the heat-conducting structure is equipped with an inlet pipe that communicates with the rotating shell. The horizontal height of the inlet pipe is higher than that of the discharge pipe.

[0006] In some technical solutions of the present invention, the drive structure includes a guide bar, which is wrapped around the outer side wall of the assembly shell along the outer periphery of the assembly shell. An external toothed ring is sleeved on the outer side wall of the assembly shell. The external toothed ring is rotatably disposed on the end face of the guide bar. A transmission gear that meshes with the external toothed ring is rotatably disposed in the support frame. A first drive motor that is connected to the transmission gear is disposed in the support frame. A connecting frame that is connected to the external toothed ring is disposed on the body of the oxygen cutting structure.

[0007] In some technical solutions of the present invention, an installation groove is provided on the side wall opposite to the guide bar of the connecting frame, a portion of the guide bar is embedded in the installation groove, a guide wheel is rotatably provided in the installation groove, a guide groove is provided on the end face of the guide bar along its extension direction, and a portion of the guide wheel is embedded in the guide groove.

[0008] In some technical solutions of the present invention, the connecting frame is provided with a sliding table structure, the sliding end of the sliding table structure is connected to the body of the oxygen cutting structure; an adjustment hole is provided on the outer wall of the rotating shell, the cutting end of the oxygen cutting structure is slidably disposed in the adjustment hole, and a barrier ring that abuts against the outer wall of the cutting end of the oxygen cutting structure is installed in the adjustment hole.

[0009] In some technical solutions of the present invention, the heat-conducting structure includes a heat-conducting pipe, which is bent and spirally installed on the inner wall of the assembly shell, and a pumping structure communicating with the input end of the heat-conducting pipe is installed on the outer wall of the assembly shell.

[0010] In some technical solutions of the present invention, the conveying structure includes a main pipe installed on a support frame, a connecting pipe connected to the discharge pipe at the input end of the main pipe, a turbine conveyor rotatably installed inside the main pipe, and a second drive motor connected to the turbine conveyor on the outer side wall of the support frame; and a conveying hose connected to the heat-conducting pipe at the input end of the main pipe.

[0011] In some technical solutions of the present invention, an arc-shaped movement channel is provided on the outer side wall of the rotating shell along its outer periphery, a sealing plate is slidably provided in the movement channel, an adjustment hole is opened on the sealing plate, and the length of the sealing plate is greater than the length of the movement channel.

[0012] In some technical solutions of the present invention, a plurality of baffles are provided at equal intervals along the extension direction on the inner sidewall of the sealing plate.

[0013] In some technical solutions of the present invention, an mounting frame is installed on the inner side wall of the sealing plate, and a grinding roller is provided on the mounting frame. The grinding surface of the grinding roller abuts against the outer side wall of the reinforcing bar, and the angle between the reverse extension line of the mounting frame and the cutting direction of the oxygen cutting structure is an acute angle.

[0014] In some technical solutions of the present invention, chuck clamping structures are installed on both sides of the support frame, and the clamping center of the chuck clamping structure is coaxial with the inlet and outlet.

[0015] Compared with the prior art, the present invention has at least the following advantages or beneficial effects: relying on the discharge pipe, the conveying structure, and the inlet pipe to form a high-low closed forced heat circulation loop, and combined with the spiral heat conduction pipe to achieve large-area heat exchange; the residual heat from cutting inside the rotating shell can be stably circulated out and then returned, balancing the overall temperature of the steel bar cutting point and the parent material on both sides, reducing the temperature difference between hot and cold in the steel bar cutting area, and avoiding excessive temperature difference leading to steel bar brittleness; at the same time, it continuously removes the instantaneous high temperature of cutting, preventing irreversible deterioration of the metallographic structure of the steel bar, and completely preserving the original tensile and compressive mechanical properties of the bridge reinforcement steel bar, meeting the bridge load-bearing and seismic construction standards. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the steel bar processing equipment in this invention.

[0017] Figure 2 This is a front view structural diagram of the steel bar processing equipment in this invention.

[0018] Figure 3 This is a side view of the steel bar processing equipment in this invention.

[0019] Figure 4 This is a schematic diagram of the assembly structure of the assembly shell and the rotating shell in this invention.

[0020] Figure 5 In this invention Figure 3 Schematic diagram of the cross-sectional structure along the AA direction.

[0021] Figure 6 In this invention Figure 3 A schematic diagram of the three-dimensional structure after cross-section along the AA direction.

[0022] Figure 7 This is an exploded structural diagram of the conveying structure in this invention.

[0023] Figure 8 This is a schematic diagram of the installation structure of the sealing plate in this invention.

[0024] Figure 9 for Figure 5 A magnified schematic diagram of the structure at point B in the middle.

[0025] Reference numerals: 1. Support frame; 2. Assembly shell; 3. Rotating shell; 301. Adjustment hole; 302. Movement channel; 4. Baffle; 401. Inlet / outlet channel; 5. Oxygen cutting structure; 501. Cutting end; 6. Drive structure; 601. Guide bar; 602. External gear ring; 603. Transmission gear; 604. First drive motor; 605. Connecting frame; 606. Mounting slot; 607. Guide wheel; 608. Guide groove 7. Heat-conducting structure; 701. Heat-conducting pipe; 8. Discharge pipe; 9. Conveying structure; 901. Main pipe; 902. Connecting pipe; 903. Turbine conveyor; 904. Second drive motor; 905. Conveying hose; 10. Inlet pipe; 11. Slide structure; 12. Barrier ring; 13. Pumping structure; 14. Sealing plate; 1401. Baffle plate; 15. Mounting bracket; 16. Grinding roller; 17. Chuck clamping structure. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0028] Example This invention provides a steel bar processing device for bridge repair and reinforcement projects, such as... Figures 1-9 As shown, in order to solve the problem that the high temperature during oxygen cutting of steel bars in traditional bridge reinforcement processes causes changes in the metallographic structure of the steel bar base material, resulting in a decrease in the structural strength of the steel bar base material.

[0029] A U-shaped support frame 1 is installed, serving as the foundation for the entire machine. The interior of the support frame forms a U-shaped assembly area. Two inlets / outlets are symmetrically and coaxially arranged on both sides of the support frame 1, allowing straight-line passage of reinforcing bars. The inner diameter of the inlets / outlets is larger than the diameter of the reinforcing bar to be cut. Chuck clamping structures 17 are installed at both inlets / outlets on both sides of the support frame 1. The clamping centers of the two chuck clamping structures 17 are coaxial with the inlets / outlets, enabling centering and clamping of both ends of the reinforcing bar, restricting all degrees of freedom of movement, and adapting to the clamping and positioning requirements of reinforcing bars of different diameters.

[0030] Two sets of assembly shells 2 are fixedly and symmetrically arranged inside the assembly area. A rotating shell 3 is rotatably assembled between the two sets of assembly shells 2. Both ends of the rotating shell 3 can be detachably fitted with baffles 4. The baffles 4 are hollow structures, and their inner walls are filled with a low thermal conductivity material, such as layered composite materials: composite materials made with graphene, carbon fiber, zirconium oxide, etc. as the base material, or siloxane foam, to prevent heat transfer from inside the rotating shell 3 to the outside. An inlet / outlet channel 401 coaxial with the inlet and outlet is opened in the center of the baffle 4 to ensure that the reinforcing steel bars pass through the center of the rotating shell 3 in a straight line.

[0031] The rotating shell 3 is a sealed cavity structure filled with a heat-conducting medium to absorb the concentrated high temperature generated during oxygen cutting. The heat-conducting medium is water, which utilizes its high specific heat capacity to achieve uniform cooling of the cut steel bar. At the same time, the water temperature is controlled to prevent rapid cooling and to isolate air to reduce oxidation. During cutting, the steel bar is completely submerged, with only the cutting point protruding 5mm above the water surface. A waterproof torch is used, and an oxygen flow with bubble protection ensures normal combustion underwater.

[0032] Preferably, the water temperature is controlled at 60-80℃ in the initial stage of cutting (cold water is prohibited for direct cutting).

[0033] Preferably, the heat-conducting medium is an inert gas such as nitrogen or CO2 in a gaseous medium.

[0034] An arc-shaped movement channel 302 is also provided on the outer wall of the rotating shell 3 along the circumferential direction. A sealing plate 14 is slidably installed inside the movement channel 302. The arc length of the sealing plate 14 is greater than the overall length of the movement channel 302, which can completely block the opening of the movement channel 302 and ensure that the cavity of the rotating shell 3 is always sealed. An adjustment hole 301 is provided on the sealing plate 14. The cutting end 501 of the oxygen cutting structure 5 passes through the adjustment hole 301 and extends into the interior of the rotating shell 3 to cut the steel bar located at the center of the rotating shell 3.

[0035] Preferably, a pressure relief hole is provided on the outer side wall of the rotating shell 3, and a pressure relief valve is installed in the pressure relief hole.

[0036] A drive structure 6 is mounted on the outer wall of the assembly shell 2 on one side of the rotating shell 3. The drive structure 6 consists of a guide bar 601, an external gear ring 602, a transmission gear 603, a first drive motor 604, and a connecting frame 605. The guide bar 601 is arranged in a ring around the outer periphery of the assembly shell 2. The external gear ring 602 is slidably mounted on the end face of the guide bar 601. The transmission gear 603, which meshes with the external gear ring 602, is rotatably mounted inside the support frame 1. The first drive motor 604 provides power to the transmission gear 603. The connecting frame 605 is fixed to the outside of the external gear ring 602. An installation groove 606 is opened on the inner side of the connecting frame 605. The guide bar 601 is embedded in the installation groove 606 and a guide wheel 607 is rotatably mounted thereon. The guide wheel 607 is engaged in the guide groove 608 on the surface of the guide bar 601 to achieve rolling limit. At the same time, a slide structure 11 is added to the connecting frame 605. The sliding end of the slide is connected to the oxygen cutting structure 5, and the position of the cutting end 501 can be adjusted radially.

[0037] The inner wall of the sealing plate 14 is equidistantly fixed with interference flow plates 1401 along the extension direction to disrupt the flow state of the heat transfer medium and enhance heat transfer. At the same time, the inner side of the sealing plate 14 is equipped with a grinding roller 16 via a mounting bracket 15. The grinding roller 16 is in contact with the outer wall of the reinforcing bar, and the reverse extension line of the mounting bracket 15 forms an acute angle with the cutting direction of the oxygen cutting structure 5, so as to achieve immediate follow-up grinding after cutting. The mounting bracket 15 is a telescopic rod structure.

[0038] Preferably, the sealing plate 14 can be rotated at a certain angle by an operator using an external actuator on the rotating housing 3.

[0039] Both sets of assembly shells 2 are equipped with spiral heat-conducting pipes 701 to form a heat-conducting structure 7. A pump-in structure 13 is installed on the outer wall of the assembly shell 2 to assist in the flow and heat exchange of the medium. The bottom of the rotating shell 3 is connected to the discharge pipe 8, which is connected to the conveying structure 9. The conveying structure 9 consists of a main pipe 901, a connecting pipe 902, a turbine conveyor 903, a second drive motor 904, and a conveying hose 905, which can transport the high-temperature heat-conducting medium in the rotating shell 3 to the spiral heat-conducting pipes 701 on both sides. The end of the heat-conducting pipe 701 is connected to the inlet pipe 10, which enters the interior of the rotating shell 3 and is installed at a higher height than the discharge pipe 8. Relying on the height difference and the conveying structure 9, a one-way closed-loop circulation of the heat-conducting medium is achieved, preventing medium backflow and short circuit. By circulating the high-temperature water in the rotating shell 3 into the heat-conducting pipes 701 located in the assembly shell 2, the steel bar segments located on both sides of the cutting point can be insulated, so that the temperature of the steel bar cutting point and the steel bar segments near the cutting point are basically the same.

[0040] The horizontal height of the inlet pipe 10 is higher than that of the outlet pipe 8. When the turbine conveyor 903 stops working, the heat transfer medium can maintain natural circulation in the circuit by relying on the thermosiphon effect to prevent local overheating. When the turbine conveyor 903 is working, the height difference between the two can help reduce the pumping power requirement.

[0041] Preferably, a filter screen is installed at the inlet of the discharge pipe 8 to prevent the cutting slag from clogging the discharge pipe 8.

[0042] An isolation ring 12 is installed inside the adjustment hole 301. The isolation ring 12 is in close contact with the outer wall of the cutting end 501 of the oxygen cutting structure 5, realizing dynamic sealing during the movement of the cutting end 501 and preventing the leakage of heat transfer medium and high-temperature molten slag. The sealing plate 14 can slide adaptively along the arc-shaped movement channel 302 to compensate for the displacement caused by the circumferential oscillation of the rotating shell 3 and avoid interference and jamming during the movement of the cutting end 501. The isolation ring 12 is made of heat-resistant expanding graphite braided material, which can withstand a temperature of not less than 600°C, and at least two stages of isolation rings 12 are provided in the adjustment hole 301 to form a series seal.

[0043] The overall operation process of this equipment is divided into five steps: steel bar loading and clamping, cutting parameter adjustment, circumferential cutting and synchronous grinding, closed-loop heat dissipation, and workpiece unloading and equipment reset. The specific process is as follows: Rebar feeding and coaxial clamping positioning: The bridge reinforcement rebar to be processed is inserted from one side of the bearing frame 1 through the inlet and outlet, passing through the inlet and outlet channel 401 of the baffle 4, the inner cavity of the rotating shell 3, and the inlet and outlet channel 401 of the other side of the baffle 4, and then exiting from the other side through the inlet and outlet, ensuring that the rebar is coaxially arranged throughout the process. Then, the chuck clamping structure 17 on both sides is activated, and the chucks on both sides simultaneously clamp the rods at both ends of the rebar, locking all degrees of freedom of the rebar in terms of axial movement, radial runout, and circumferential rotation, thus offsetting the lateral impact force generated by subsequent cutting and grinding, and ensuring that the position of the rebar does not deviate throughout the entire processing. At the same time, sufficient liquid heat-conducting medium is added into the interior of the rotating shell 3 in advance, and the removable baffles 4 at both ends are locked to seal the cutting cavity of the rotating shell 3.

[0044] Cutting position and motion trajectory adjustment: According to the diameter of the steel bar to be processed, the sliding table structure 11 on the connecting frame 605 is controlled to drive the oxygen cutting structure 5 to slide radially, and the distance between the cutting end 501 and the outer wall of the steel bar is precisely adjusted to match the cutting requirements of steel bars of different thicknesses; before the equipment is running, the guide bar 601, guide wheel 607 and guide groove 608 cooperate with each other to pre-limit the motion trajectory of the connecting frame 605 and the outer toothed ring 602, so as to ensure that the subsequent circumferential swing trajectory is regular and there is no radial or axial deviation.

[0045] Oxygen cutting and burr removal: The first drive motor 604 is started, driving the transmission gear 603 to rotate. Through gear meshing, the external gear ring 602 is driven to make a limited-angle circular motion along the annular guide strip 601. The external gear ring 602 drives the oxygen cutting structure 5 and the rotating shell 3 to swing in an arc around the outer periphery of the assembly shell 2 through the connecting frame 605. The cutting end 501 follows the rotating shell 3 to make a circumferential motion around the steel bar, completing the full-circumferential closed oxygen cutting of the steel bar. During the cutting process, the sealing plate 14 slides synchronously along the arc-shaped motion channel 302 with the cutting end 501. Relying on its own length redundancy design, it completely seals the channel opening and maintains the cavity seal. At the same time, the grinding roller 16 placed on the inner rear of the sealing plate 14 makes a circumferential motion. After the cutting end 501 completes the cutting of the steel bar, the burrs and molten metal on the outer side of the cut surface are ground while it is still hot. The cutting and grinding processes are completed simultaneously in a single circumferential motion.

[0046] Closed-loop heat exchange of the heat transfer medium: Simultaneously with the cutting operation, the second drive motor 904 is activated, driving the turbine conveyor 903 to rotate at high speed. This generates fluid transport power, drawing the heat transfer medium, which has absorbed the high temperature from the cutting process, from the rotating shell 3. The medium is then extracted to the main pipe 901 via the discharge pipe 8 and connecting pipe 902, and then distributed to the spiral heat transfer pipes 701 inside the assembly shells 2 on both sides via the delivery hose 905. The spiral pipes extend the heat exchange path, allowing residual heat from the cutting process to be conducted to the heat transfer pipes 701 through the assembly shell 2, completing the heat exchange and cooling. The cooled heat transfer medium flows back to the inner cavity of the rotating shell 3 through the high-level inlet pipe 10, continuously circulating and carrying away the concentrated heat from the cutting process. Simultaneously, the baffle 1401 inside the sealing plate 14 disrupts the laminar flow of the medium, creating turbulent flow and enhancing the heat exchange efficiency in the localized high-temperature areas of the cutting process, thus preventing localized overheating of the reinforcing steel.

[0047] Equipment reset and workpiece unloading: After the steel bar cutting and grinding are completed, control the first drive motor 604 to reverse, driving the outer gear ring 602 and oxygen cutting structure 5 to reset to the initial position; turn off the second drive motor 904 to stop the circulation of the heat transfer medium. Then release the double-sided chuck clamping structure 17 and directly pull out the processed steel bar; after long-term use of the equipment, the baffles 4 at both ends of the rotating shell 3 can be directly disassembled to clean the accumulated molten slag inside. After completing the equipment maintenance, the next steel bar processing operation can be carried out.

[0048] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A steel bar processing equipment for bridge repair and reinforcement projects, characterized in that, The system includes a support frame, which has an assembly area. Both sides of the support frame have inlets and outlets for steel bars to pass through, and the two inlets and outlets are coaxially arranged. A rotating shell is rotatably mounted within the assembly area. Both ends of the rotating shell are detachably equipped with baffles. The side walls of the baffles are provided with inlet and outlet channels coaxial with the inlet and outlet. Two assembly shells are installed within the assembly area, and the rotating shell is rotatably mounted between the two assembly shells. An oxygen cutting structure is installed on the outer side wall of the rotating shell. The cutting end of the oxygen cutting structure penetrates the rotating shell and is placed inside the rotating shell. One of the assembly shells has a drive structure on its outer side wall. The drive structure is used to drive the oxygen cutting structure and the rotating shell to make a finite angle circular motion along the outer periphery of the assembly shell. Each assembly shell is equipped with a heat-conducting structure; the rotating shell contains a heat-conducting medium, and the outer wall of the rotating shell is provided with a discharge pipe. The output end of the discharge pipe is provided with a conveying structure that communicates with the heat-conducting structure; the conveying structure is used to convey the heat-conducting medium in the rotating shell to the heat-conducting structure; the output end of the heat-conducting structure is provided with an inlet pipe that communicates with the rotating shell, and the horizontal height of the inlet pipe is higher than the horizontal height of the discharge pipe.

2. The steel bar processing equipment for bridge repair and reinforcement projects according to claim 1, characterized in that, The drive structure includes a guide bar, which is wrapped around the outer periphery of the assembly shell and mounted on the outer side wall of the assembly shell. An external toothed ring is fitted on the outer side wall of the assembly shell and is rotatably mounted on the end face of the guide bar. A transmission gear that meshes with the external toothed ring is rotatably mounted inside the support frame. A first drive motor that is connected to the transmission gear is mounted inside the support frame. A connecting frame that is connected to the external toothed ring is mounted on the main body of the oxygen cutting structure.

3. The steel bar processing equipment for bridge repair and reinforcement projects according to claim 2, characterized in that, The connecting frame has an installation groove on its side wall opposite to the guide strip. A portion of the guide strip is embedded in the installation groove. A guide wheel is rotatably mounted in the installation groove. A guide groove is provided on the end face of the guide strip along its extension direction. A portion of the guide wheel is embedded in the guide groove.

4. A steel bar processing equipment for bridge repair and reinforcement projects according to claim 2 or 3, characterized in that, The connecting frame is provided with a sliding table structure, and the sliding end of the sliding table structure is connected to the body of the oxygen cutting structure; an adjustment hole is provided on the outer wall of the rotating shell, and the cutting end of the oxygen cutting structure is slidably disposed in the adjustment hole, and a barrier ring that abuts against the outer wall of the cutting end of the oxygen cutting structure is installed in the adjustment hole.

5. The steel bar processing equipment for bridge repair and reinforcement projects according to claim 1, characterized in that, The heat-conducting structure includes a heat-conducting pipe, which is bent and spirally installed on the inner wall of the assembly shell. A pumping structure connected to the input end of the heat-conducting pipe is installed on the outer wall of the assembly shell.

6. The steel bar processing equipment for bridge repair and reinforcement projects according to claim 5, characterized in that, The conveying structure includes a main pipe installed on a support frame, a connecting pipe connected to a discharge pipe at the input end of the main pipe, a turbine conveyor rotatably installed inside the main pipe, and a second drive motor connected to the turbine conveyor on the outer wall of the support frame; and a conveying hose connected to a heat-conducting pipe at the input end of the main pipe.

7. A steel bar processing equipment for bridge repair and reinforcement projects according to claim 4, characterized in that, An arc-shaped movement channel is formed on the outer wall of the rotating shell along its outer periphery. A sealing plate is slidably arranged in the movement channel. The adjustment hole is opened on the sealing plate. The length of the sealing plate is greater than the length of the movement channel.

8. The steel bar processing equipment for bridge repair and reinforcement projects according to claim 7, characterized in that, Several baffles are provided at equal intervals along the extension direction on the inner side wall of the sealing plate.

9. A steel bar processing equipment for bridge repair and reinforcement projects according to claim 7, characterized in that, An installation frame is installed on the inner side wall of the sealing plate. A grinding roller is provided on the installation frame. The grinding surface of the grinding roller abuts against the outer side wall of the reinforcing bar. The angle between the reverse extension line of the installation frame and the cutting direction of the oxygen cutting structure is an acute angle.

10. A steel bar processing equipment for bridge repair and reinforcement projects according to claim 1, characterized in that, Both sides of the support frame are equipped with chuck clamping structures, and the clamping center of the chuck clamping structure is coaxial with the inlet and outlet.

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