Building demolition waste steel recovery processing device

Abstract

The invention relates to the technical field of solid waste treatment, in particular to a building demolition waste steel recovery treatment device which comprises a treatment table, a monitoring part and a second annular plate, a traction part is arranged on the treatment table, and the second annular plate and the monitoring part are coaxially arranged on the treatment table; the crushing sections of the crushing assemblies are always kept perpendicular to the axis direction of the treatment table in the moving process; the self-adaptive steam injection assembly is used for synchronously injecting hot steam when the crushing assembly crushes the concrete on the surface of the reinforcing steel bar, and the steam injection amount of the self-adaptive steam injection assembly is gradually increased along with increase of the radial outward moving distance of the crushing assembly; according to the installation design that the crushing assembly is perpendicular to the axis direction of the steel bars, crushing force can completely act on the combination face of the concrete and the steel bars, compared with a traditional inclined or deflection force application mode, the pressure intensity borne by the concrete under the same acting force is higher, the attached concrete can be rapidly crushed, and force loss is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of solid waste treatment, in particular to a device for recycling and treating scrap steel from building demolition. Background Art

[0002] During the demolition process, the recycling of scrap steel (such as steel bars) is an important part of the resource utilization of solid waste. In traditional demolition operations, after the concrete columns are crushed, some small concrete blocks will still remain on the outside of the individual scrap steel bars. How to peel off the concrete blocks and recycle the steel bars has always been a key issue facing the industry.

[0003] After searching, patent application number 202411006038.X discloses a steel bar stripping device for construction solid waste treatment. The device uses a ring-cutting stripping device to strip the concrete from the outside of the steel bar. The steel bar is then pulled along the axial direction of the steel bar support device by a steel bar pulling device, thereby removing concrete along the entire length of the steel bar. Compared with the traditional direct overall crushing method, this method ensures the integrity of the steel bar while being more conducive to the separation of concrete and steel bar, making recycling more convenient. The steel bar is heated by a heating device to cause it to expand. In actual use, it uses a circular cutting and stripping device to perform circular cutting and crushing of concrete blocks. However, during the circular cutting process, due to the different sizes of concrete blocks, the applied crushing force is difficult to be completely perpendicular to the axis of the steel bar, resulting in serious force loss. At the same time, the crushing head is easily tilted due to uneven force, and can only partially crush the concrete, and cannot achieve complete stripping, affecting the subsequent steel recovery efficiency. In addition, the heat output of the heating device in the existing technology is difficult to dynamically adjust according to the wrapping thickness of the concrete or the crushing process, which leads to excess heat in the thinner concrete area, resulting in energy waste, and in the thicker concrete area, due to insufficient heat, it is impossible to effectively weaken the bonding force between the steel bar and the concrete, affecting the crushing effect. Therefore, in response to the above problems, a waste steel recycling and processing device for building demolition is proposed. Summary of the Invention

[0004] In order to overcome the problems existing in the related art, the present invention provides a device for recycling and processing scrap steel from building demolition, which can fully apply the crushing force to the interface between concrete and steel bars, and can realize automatic increase of steam injection volume as the crushing process progresses.

[0005] To achieve the above-mentioned object, the present invention provides a device for recycling and processing scrap steel from building demolition, comprising a processing platform provided with a traction member, and further comprising: A monitoring component, fixedly mounted on the feed end of the processing table; a second annular plate, arranged on the processing table along the same axis as the monitoring element; A plurality of crushing assemblies are slidably mounted on the second annular plate in an annular array by a moving assembly, wherein the crushing segments of the crushing assemblies always remain perpendicular to the axis of the processing table during movement; The adaptive steam injection component is linked to the crushing component and is used to synchronously inject hot steam when the crushing component crushes the concrete on the surface of the steel bars, and the steam injection amount increases as the radial outward movement distance of the crushing component increases.

[0006] Preferably, the second annular plate is provided with a plurality of mounting grooves in an annular array; The crushing assembly comprises: An arc-shaped block is slidably embedded in the installation groove; The hydraulic cylinder is installed on the inner arc surface of the arc block, and a crushing knife is installed on the output end of the hydraulic cylinder.

[0007] Preferably, the moving component includes: a first motor, mounted on the inner side of the second annular plate, and a second gear mounted on an output end of the first motor; The arc-shaped rack is fixed to the side wall of the arc-shaped block and meshes with the second gear for transmission.

[0008] Preferably, the adaptive steam injection assembly comprises: A hot air pipe is vertically fixed on one side of the arc block, with an air nozzle at the end and a regulating valve installed on the hot air pipe; a first gear fixed to the outer end of the valve stem of the regulating valve; A connecting rod, one end of which is fixedly connected to the piston rod of the hydraulic cylinder, and the other end of which is provided with a straight rack meshing with the first gear, so that the regulating valve opens linearly when the hydraulic cylinder extends.

[0009] Preferably, the monitoring component includes: A first annular plate is coaxially fixed to the processing table; A plurality of monitors are evenly distributed on the first annular plate in a circumferential direction and are used to detect the position of the steel bars and the state of the concrete wrapping in real time.

[0010] Preferably, a guide groove is provided on the side wall of the installation groove, and a guide bar is fixed to the lower end of the side wall of the arc block, and the guide bar slides and fits in the guide groove.

[0011] Preferably, an alternating support assembly is further included, wherein the alternating support is provided on the front side of the monitoring component along the steel bar feeding direction, and is used for alternately supporting the steel bars and allowing concrete fragments to pass through.

[0012] Preferably, the alternating support assembly comprises: Two supporting guides arranged in parallel; The alternating member connects the two supporting and guiding members and is used to control the two supporting and guiding members to perform alternating lifting and lowering movements.

[0013] Preferably, the alternating element comprises: A fixed base is installed below the processing table through a central hinge shaft, and slots are provided at both ends of the fixed base; a second motor driving a hinge shaft connected to the fixed base; Two sets of connecting rod units, each set includes: A connecting block, hinged to the bottom of the supporting and guiding member; A slider, fixed to the end of the connecting block and slidably embedded in a slot at the end of the fixed base; A return spring is connected between the slider and the inner wall of the slot.

[0014] Preferably, a reinforcing rib plate is provided on the inner side of the second annular plate corresponding to the installation position of the first motor, and a pressure sensor is installed between the crushing knife and the output end of the hydraulic cylinder.

[0015] The technical solution provided by the present invention can have the following beneficial effects: 1. In the present invention, the crushing assembly is installed perpendicular to the axis of the steel bar, so that the crushing force can be fully applied to the interface between the concrete and the steel bar. Compared with the traditional inclined or deflected force application method, the concrete is subjected to a higher pressure under the same force, which can quickly crush the attached concrete and reduce the loss of force.

[0016] 2. In the present invention, the monitoring component can detect the position of steel bars and the state of concrete wrapping in real time from multiple angles, providing the crushing component with accurate concrete distribution information. In conjunction with the mobile component, it can quickly adjust to the optimal crushing position according to the structural characteristics of the concrete block. It can also actively avoid the tip of the concrete to prevent the crushing knife from chipping or breaking, thereby extending its service life.

[0017] 3. In the present invention, the adaptive steam injection assembly is linked to the crushing assembly. When the hydraulic cylinder extends outward to drive the crushing knife to crush the concrete, the connecting rod is driven by the meshing of the spur rack and the first gear, so that the opening of the regulating valve increases linearly with the extension length of the hydraulic cylinder, thereby realizing the automatic increase of the steam injection amount with the crushing process.

[0018] 4. In the present invention, steam or hot air heats the concrete and steel bars, and utilizes the difference in expansion coefficients between the two to generate shear stress, thereby weakening the bonding force and making the concrete brittle, which facilitates subsequent crushing. At the same time, it reduces the generation of fine powder during crushing, reduces the risk of fragment splashing and tool loss of control, and improves operational safety.

[0019] 5. In the present invention, the setting of the alternating support assembly controls the alternating lifting and lowering of the two supporting guide members through the alternating members, thereby realizing automatic avoidance when the concrete block passes, breaking away from the limitations of traditional manual operation, significantly improving the degree of automation and operating efficiency of steel bar processing, and reducing the operational risks and labor intensity caused by manual intervention. At the same time, during the lifting and lowering of the supporting guide members, the slider and the reset spring can automatically adjust the extension distance of the connecting block to adapt to the lifting requirements.

[0020] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This invention Figure 1 Schematic diagram of the overall structure from another perspective; Figure 3 It is a front view of the present invention; Figure 4 It is a schematic structural diagram of the second annular plate, the crushing assembly, the adaptive steam injection assembly and the moving assembly of the present invention; Figure 5 This invention Figure 4 Schematic diagram of the structure from another perspective; Figure 6 It is a schematic structural diagram of the crushing assembly, the adaptive steam injection assembly and the moving assembly of the present invention; Figure 7 It is a schematic structural diagram of the adaptive steam injection assembly of the present invention; Figure 8 is a schematic structural diagram of the second annular plate of the present invention; Figure 9 It is a schematic structural diagram of the alternating support assembly of the present invention; Figure 10 It is a schematic diagram of the exploded structure of the alternating support assembly of the present invention.

[0023] The corresponding relationship between the illustration labels and component names in the figure is as follows: 1. Processing table; 2. Traction member; 3. Monitoring member; 31. First annular plate; 32. Monitor; 4. Second annular plate; 41. Mounting groove; 42. Guide groove; 5. Straightening parts; 6. Crushing assembly; 61. Hydraulic cylinder; 62. Crushing knife; 63. Arc block; 631. Guide bar; 7. Adaptive steam injection assembly; 71. Hot air pipe; 72. Air nozzle; 73. First gear; 74. Straight rack; 75. Connecting rod; 76. Regulating valve; 8. Moving assembly; 81. First motor; 82. Second gear; 83. Arc rack; 9. Alternating support assembly; 91. Support guide; 92. Alternating member; 921. Fixed base; 922. Second motor; 923. Connecting block; 924. Slider; 925. Return spring; 926. Slot. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary persons in this field without making creative work are within the scope of protection of the present invention. The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described here. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to be able to fully convey the scope of the present invention to those skilled in the art.

[0025] The terminology used in this disclosure is for the purpose of describing specific embodiments only and is not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a building demolition scrap steel recycling and processing device," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0026] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0027] The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Example 1: See Figures 1-8 As shown, the present invention proposes a device for recycling and processing scrap steel from building demolition, including a processing table 1, on which is provided a traction member 2 for pulling steel bars, the traction member 2 adopts existing equipment, including two clamping rollers and a reduction motor for driving the clamping rollers, the reduction motor and the support of the clamping rollers are installed on the processing table 1, driving the steel bars to move along the axial direction, and also including a monitoring member 3, a second annular plate 4, a plurality of crushing components 6 and an adaptive steam injection component 7, the monitoring member 3 is fixedly installed near the feed end of the processing table 1, and the traction member 2 is installed at the discharge end of the processing table 1, wherein the monitoring member 3 is composed of a first annular plate 31 and a monitor 32, and a plurality of monitors 32 are provided, the first annular plate 31 is coaxially fixed on the processing table 1, and the plurality of monitors 32 are arranged in an annular array on the first annular plate 31, for The position of the steel bars and the state of the concrete wrapping are detected in real time from different angles. The monitor 32 can be a three-dimensional laser scanner or an industrial camera. The second annular plate 4 and the monitoring component 3 are coaxially arranged on the processing table 1. The second annular plate 4 is located on the rear side of the monitoring component 3 along the processing direction. A plurality of crushing components 6 are arranged in a circular array on the second annular plate 4, and the crushing components 6 are slidably arranged through the moving component 8. The crushing section of the crushing component 6 always remains perpendicular to the axial direction of the processing table 1 during the movement to ensure that the concrete block has a greater crushing force. The adaptive steam injection component 7 is connected to the crushing component 6. The adaptive steam injection component 7 is used to synchronously inject hot steam when the crushing component 6 crushes the concrete on the surface of the steel bars, and its steam injection amount increases with the increase of the radial outward movement distance of the crushing component 6.

[0029] Among them, see Figure 4-Figure 8 As shown, the second annular plate 4 is provided with a plurality of mounting grooves 41 in an annular array, and the mounting grooves 41 are arc-shaped structures; Crushing assembly 6 includes: The arc block 63 is slidably embedded in the mounting groove 41, and the arc block 63 consists of a sliding portion and a mounting portion, the sliding portion and the mounting portion are fixed to each other, and the arc block 63 is preferably made of high-strength alloy steel. Through a precision casting one-piece molding process, the sliding portion and the mounting portion are seamlessly connected, wherein the sliding portion slidably matches the mounting groove 41, and the mounting portion protrudes from the mounting groove 41. A guide groove 42 is provided on the side wall of the mounting groove 41. A guide bar 631 is fixed to the lower end of the side wall of the arc block 63, and the guide bar 631 slidably matches the guide groove 42. The movement of the guide bar 631 along the guide groove 42 can ensure the stability of the movement of the arc block 63, and a ball bearing can be provided in the guide groove 42 to reduce friction; The hydraulic cylinder 61 is mounted on the inner curved surface of the arc block 63, and a crushing blade 62 is mounted on the output end of the hydraulic cylinder 61. The hydraulic cylinder 61 and the crushing blade 62 are mounted perpendicular to the axis of the processing platform 1. The crushing blade 62 preferably uses a tungsten carbide hard alloy blade head, and with the gradient quenching process, the blade hardness reaches HRC65 or above, and has extremely strong concrete crushing ability. A pressure sensor is installed between the crushing blade 62 and the output end of the hydraulic cylinder 61. The pressure sensor is used to monitor the pressure in real time. When the pressure exceeds a preset threshold, the system automatically triggers the overload protection mechanism, suspends the extension and retraction action of the hydraulic cylinder 61, and alerts the staff through an alarm device (not shown) to avoid damage to the steel bars or equipment failure due to excessive pressure. At the same time, the pressure data can be synchronously transmitted to the controller (not shown) for analyzing the concrete strength and optimizing the crushing operation parameters. In use, when the hydraulic cylinder 61 is started, the hydraulic cylinder 61 can be used to drive the crushing blade 62 to extend outward, thereby crushing the concrete blocks attached to the outside of the steel bars through the crushing blade 62.

[0030] See Figure 5-Figure 6 As shown, the moving assembly 8 includes a first motor 81 and an arc-shaped rack 83. The first motor 81 is a motor whose shaft can rotate forward and reverse. The first motor 81 is installed on the inner side of the second annular plate 4. A reinforcing rib plate is provided on the inner side of the second annular plate 4 corresponding to the installation position of the first motor 81, which can effectively disperse the vibration and torque generated when the motor is running, thereby improving the operation stability of the equipment. A second gear 82 is installed at the output end of the first motor 81, and the arc-shaped rack 83 is fixed to the side wall of the arc block 63 and meshes with the second gear 82 for transmission. When the first motor 81 is started, the first motor 81 can be used to The output end drives the second gear 82 to rotate, and then drives the arc block 63 fixed with the arc rack 83 to move. According to the structural characteristics of the concrete block and the information captured by the monitor 32, the crushing knife 62 can be quickly adjusted to the optimal crushing position. In addition, by adjusting to actively avoid the tip of the concrete block, the crushing knife 62 can be prevented from chipping or breaking due to local stress concentration, effectively extending the service life of the crushing knife 62. In addition, more precise position adjustment reduces the risk of concrete splashing. Combined with intelligent monitoring, unmanned operation can be realized, significantly improving the safety of steel bar recycling and processing.

[0031] See Figure 4-Figure 7 As shown, the adaptive steam injection assembly 7 includes: The hot air pipe 71 is vertically fixed to one side of the arc block 63, and has an air nozzle 72 at its end. A regulating valve 76 is installed on the hot air pipe 71. The hot air pipe 71 consists of a hard pipe part and a soft pipe part. The hard pipe part is fixed to the arc block 63, and the upper end is the soft pipe part. The soft pipe part is used to connect to the steam delivery pipe. Steam can be generated by a steam generator. A first gear 73 , the first gear 73 being fixed to the outer end of the valve stem of the regulating valve 76 ; A connecting rod 75 is provided, one end of which is fixedly connected to the piston rod of the hydraulic cylinder 61, and the other end of the connecting rod 75 is provided with a straight rack 74 meshing with the first gear 73, so that the regulating valve 76 opens linearly when the hydraulic cylinder 61 is extended, that is, the longer the hydraulic cylinder 61 is extended, the greater the opening of the regulating valve 76.

[0032] As mentioned above, when the hydraulic cylinder 61 extends, the connecting rod 75 moves, which can drive the spur rack 74 to move, so that the meshing first gear 73 rotates, thereby increasing the opening of the regulating valve 76 to increase the steam ejection amount as the crushing process progresses.

[0033] It should be noted that hot air can also be used instead of steam, and the hot air can be generated by a hot air blower.

[0034] In addition, a straightening member 5 is provided on the processing table 1. The straightening member 5 is provided between the traction member 2 and the second annular plate 4. The straightening member 5 is composed of a number of straightening rollers evenly distributed in a ring shape. The straightening rollers are installed on the upper end surface of the processing table 1. By providing the straightening rollers, the steel bars can be straightened in advance before entering the traction member 2, so that the subsequent traction process is smoother. This is the existing technology and will not be described in detail here.

[0035] Through the above, during specific use, the staff will first pass the end of the steel bar containing concrete blocks through the straightening piece 5, and then through the traction piece 2. The traction piece 2 can drive the steel bar to be processed to move. During the movement of the steel bar to be processed, the monitoring piece 3 can monitor the condition of the steel bar in real time. When unprocessed concrete blocks are detected, as the concrete area continues to move into the second annular plate 4, the traction is stopped and the hydraulic cylinder 61 is started at the same time. The hydraulic cylinder 61 is used to drive the crushing knife 62 to extend outward to crush the concrete blocks attached to the outside of the steel bar. Since the crushing knife 62 is always arranged vertically toward the axis of the steel bar, when crushing the concrete blocks, this design can fully apply the applied force to the junction surface between the concrete and the steel bar, greatly improving the crushing efficiency. Compared with traditional crushing tools that apply inclined or deflected force, the vertically arranged crushing knife 62 can effectively increase the pressure on the concrete block when applying the same amount of force, and can quickly crush the concrete blocks attached to the outside of the steel bar, significantly reducing the loss of force during the transmission process, and reducing the risk of damage to the steel bar body.

[0036] When the crushing blade 62 moves to crush the concrete block, it can release steam and spray the steam onto the concrete block. When the hot air spray heats the concrete block and the surrounding steel bars, due to the different expansion coefficients of the steel bars, this uneven expansion will produce significant shear stress at the interface between the steel bars and the concrete. This stress will destroy or significantly weaken the chemical bond and mechanical bite force between the two. Since the bond is weakened and the concrete becomes brittle, it will become easier to crush it with the crushing blade 62 later. Compared with direct violent mechanical crushing, heat treatment makes the concrete brittle but maintains its integrity relatively better (until it is mechanically crushed). Subsequent mechanical crushing also reduces the generation of fine powder because the concrete becomes brittle; preheating makes the concrete easier to break, reducing the risk of fragments flying or tool loss of control caused by sudden concrete cracking or unexpected rebound of steel bars during the operation of hydraulic pliers or breakers, thereby improving operational safety.

[0037] In addition, the extension length of the hydraulic cylinder 61 is linked to the steam injection amount (the spur rack 74 drives the opening of the regulating valve 76). The thicker the concrete wrapping, the longer the crushing knife 62 is extended, and the greater the steam injection amount. It can flexibly adapt to different concrete wrapping conditions without the need for manual parameter adjustment.

[0038] Example 2: See Figure 1-Figure 3 as well as Figure 9-10 As shown, the building demolition scrap steel recycling and processing device also includes an alternating support component 9, which is arranged in front of the monitoring component 3 along the steel bar feeding direction, and is used to alternately support the steel bars and allow concrete fragments to pass through.

[0039] Among them, see Figure 9-10 As shown, the alternating support assembly 9 includes: Two parallel supporting and guiding members 91 are preferably arranged on both sides of the monitoring member 3. In the initial stage, the supporting and guiding member 91 located between the monitoring member 3 and the second annular plate 4 is in a supporting and guiding state, and the supporting and guiding member 91 vertically penetrates the processing table 1; The alternating member 92 connects the two supporting and guiding members 91 and is used to control the two supporting and guiding members 91 to perform alternating lifting and lowering movements.

[0040] Among them, the alternating element 92 includes: Fixed base 921, fixed base 921 is installed below the processing table 1 through a central hinge, and slots 926 are opened at both ends of the fixed base 921; The second motor 922 drives the hinge shaft connected to the fixed base 921. The second motor 922 is a reduction motor with a forward and reverse rotation shaft. There are two groups of connecting rod units, and each group of two connecting rod units includes a connecting block 923, a slider 924 and a return spring 925. The connecting block 923 is hinged to the bottom of the support guide 91, the slider 924 is fixed to the end of the connecting block 923 and is slidably embedded in the slot 926 at the end of the fixed base 921, and the return spring 925 is connected between the slider 924 and the inner wall of the slot 926.

[0041] Through the above, during specific use, as the traction member 2 pulls the steel bars to be processed to move, after the concrete block passes through the monitoring member 3, a signal can be fed back to the controller, and the controller starts the second motor 922, and drives the fixed base 921 to deflect through the output end of the second motor 922, so that the support guide member 91 located between the monitoring member 3 and the second annular plate 4 moves down, and at the same time, the other support guide member 91 moves up and is in a supporting and guiding state. After the concrete block passes through the support guide member 91 between the monitoring member 3 and the second annular plate 4, the controller can control the shaft of the second motor 922 to reverse to restore the initial guiding state. With this setting, the design realizes automatic avoidance when the concrete block passes, gets rid of the limitations of traditional manual operation, and significantly improves the automation level and operation efficiency of steel bar processing compared to the previous operation method that requires manual lifting, while effectively reducing the operational risks and labor intensity brought by manual intervention, providing reliable guarantee for the recycling and processing of steel bars.

[0042] Among them, when the fixed base 921 is deflected, the support guide 91 at one end can be raised and the support guide 91 at the other end can be lowered through the connecting block 923. During the lifting and lowering process of the support guide 91, the cooperation of the slider 924 and the return spring 925 can realize the automatic adjustment of the extension distance of the connecting block 923 (the distance between the connecting block 923 and the fixed base 921) to adapt to the lifting needs.

[0043] The scheme of the present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the description of each embodiment has its own focus. For parts not described in detail in a particular embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules mentioned in this description are not necessarily required for the present invention. In addition, it is understood that the steps in the method of the embodiment of the present invention can be adjusted in order, combined, or deleted according to actual needs, and the structures in the device of the embodiment of the present invention can be combined, divided, or deleted according to actual needs.

[0044] While various embodiments of the present invention have been described above, the foregoing description is intended to be illustrative, non-exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A device for recycling and processing scrap steel from building demolition, comprising a processing platform (1) provided with a traction member (2), characterized in that: Also includes: A monitoring component (3) is fixedly mounted on the feed end of the processing table (1); A second annular plate (4) is provided on the processing table (1) along a coaxial line with the monitoring element (3); A plurality of crushing assemblies (6) are slidably mounted on the second annular plate (4) in an annular array via a moving assembly (8), wherein the crushing segments of the crushing assemblies (6) always remain perpendicular to the axial direction of the processing table (1) during movement; An adaptive steam injection assembly (7) is linked to the crushing assembly (6) and is used to synchronously inject hot steam when the crushing assembly (6) crushes the concrete on the surface of the steel bars, and the steam injection amount increases as the radial outward movement distance of the crushing assembly (6) increases.

2. The device for recycling and treating scrap steel from building demolition according to claim 1, characterized in that: The second annular plate (4) is provided with a plurality of mounting grooves (41) in an annular array; The crushing assembly (6) comprises: An arc-shaped block (63) is slidably embedded in the mounting groove (41); The hydraulic cylinder (61) is mounted on the inner arc surface of the arc block (63), and a crushing knife (62) is mounted on the output end of the hydraulic cylinder (61).

3. The device for recycling and treating scrap steel from building demolition according to claim 2, characterized in that: The mobile component (8) comprises: A first motor (81) is mounted on the inner side of the second annular plate (4), and a second gear (82) is mounted on the output end of the first motor (81); The arc-shaped rack (83) is fixed to the side wall of the arc-shaped block (63) and meshes with the second gear (82) for transmission.

4. The device for recycling and treating scrap steel from building demolition according to claim 2, characterized in that: The adaptive steam injection assembly (7) comprises: A hot air pipe (71) is vertically fixed to one side of the arc block (63), an air nozzle (72) is provided at the end thereof, and a regulating valve (76) is installed on the hot air pipe (71); a first gear (73) fixed to the outer end of the valve stem of the regulating valve (76); A connecting rod (75) has one end fixedly connected to the piston rod of the hydraulic cylinder (61) and the other end provided with a spur rack (74) meshing with the first gear (73), so that the regulating valve (76) opens linearly when the hydraulic cylinder (61) extends.

5. The device for recycling and treating scrap steel from building demolition according to claim 1, characterized in that: The monitoring component (3) includes: A first annular plate (31) is coaxially fixed on the processing table (1); A plurality of monitors (32) are evenly distributed circumferentially on the first annular plate (31) and are used to detect the position of the steel bars and the concrete wrapping status in real time.

6. The device for recycling and treating scrap steel from building demolition according to claim 2, characterized in that: A guide groove (42) is provided on the side wall of the installation groove (41), and a guide bar (631) is fixed to the lower end of the side wall of the arc block (63), wherein the guide bar (631) slidably fits the guide groove (42).

7. The device for recycling and treating scrap steel from building demolition according to claim 1, characterized in that: It also includes an alternating support assembly (9), which is arranged on the front side of the monitoring component (3) along the steel bar feeding direction and is used to alternately support the steel bars and allow concrete fragments to pass through.

8. The device for recycling and treating scrap steel from building demolition according to claim 7, characterized in that: The alternating support assembly (9) comprises: Two supporting guide members (91) arranged in parallel; The alternating member (92) is connected to the two supporting and guiding members (91) and is used to control the two supporting and guiding members (91) to perform alternating lifting and lowering movements.

9. The device for recycling and treating scrap steel from building demolition according to claim 8, characterized in that: The alternating member (92) comprises: A fixed base (921) is installed below the processing table (1) via a central hinge shaft, and slots (926) are provided at both ends of the fixed base (921); A second motor (922) drives a hinge shaft connected to the fixed base (921); Two sets of connecting rod units, each set includes: A connecting block (923) is hinged to the bottom of the supporting guide member (91); A slider (924) is fixed to the end of the connecting block (923) and is slidably embedded in a slot (926) at the end of the fixed base (921); A return spring (925) is connected between the slider (924) and the inner wall of the slot (926).

10. The device for recycling and processing scrap steel from building demolition according to claim 3, characterized in that: A reinforcing rib plate is provided on the inner side of the second annular plate (4) at a position corresponding to the installation position of the first motor (81), and a pressure sensor is installed between the crushing knife (62) and the output end of the hydraulic cylinder (61).

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