A steel pipe recycling device for construction projects and its usage method

Abstract

This invention discloses a steel pipe recycling device for construction engineering, belonging to the field of auxiliary equipment technology for construction engineering. It aims to solve the problems of existing steel pipe recycling methods relying heavily on manual operation, resulting in inconsistent cleaning effectiveness, and some recycling equipment only capable of single cleaning functions, failing to achieve integrated cleaning, rust removal, and corrosion prevention. The key technical aspects include a workbench, a shock-absorbing support frame, a controller assembly, a cleaning box, a waste material collection box, a paint storage box, an anti-corrosion treatment mechanism, and a drying mechanism. The cleaning box, anti-corrosion treatment mechanism, and drying mechanism are sequentially arranged on the workbench along the steel pipe conveying direction. The cleaning box contains a mud and concrete scraper ring and a rust removal component. The mud and concrete scraper ring is shaped like a frustum, enabling integrated cleaning of mud and concrete blocks, rust removal, and anti-corrosion treatment after steel pipe recycling, reducing labor intensity, and improving operational efficiency and maintenance quality.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment technology for construction engineering, specifically to a steel pipe recycling device for construction engineering and its usage method. Background Technology

[0002] During the construction process, steel pipes are widely used in various construction scenarios as the core component of scaffolding and supporting structures. After the construction is completed, the surface of the recycled steel pipes will be covered with a large amount of mud, concrete lumps, dust and other debris. At the same time, due to long-term exposure to the outdoor humid environment, the surface of the steel pipes is prone to corrosion. If effective cleaning and maintenance are not carried out, the strength of the steel pipes will decrease, the service life will be shortened, and they will not be able to be used again, resulting in resource waste and increased construction costs.

[0003] A search revealed that prior art, publication number CN115805504A, discloses an automatic steel pipe maintenance machine, including a base, a rotating mechanism on the base, a traveling trolley on the base, a lifting platform and a lifting support platform on the traveling trolley, the lifting platform being placed on the lifting support platform, and a lifting mechanism on the traveling trolley capable of reciprocating the lifting support platform, with the lifting platform reciprocating along with the lifting support platform. A limit wheel is axially fixed to the lifting platform, and the limit wheel can abut against the outer wall of the steel pipe. The lifting platform is equipped with a rust removal device, a painting device, and a dust extraction device. This automatic steel pipe maintenance machine has the advantages of uniform rust removal and painting, convenient loading and unloading, compact structure, and high working efficiency.

[0004] A search revealed that in the prior art, CN105773432A discloses a jet-type device and method for removing concrete and rust from the surface of steel pipes (201610272552.7). This device includes an air compressor, a high-pressure gas cylinder, and an abrasive tank. Three conveyor frames are spaced apart on one side of the abrasive tank. A primary crushing mechanism and a jet crushing mechanism are respectively installed between adjacent conveyor frames. A jet three-way valve is installed on the pipe between the gas three-way valve and the lower end of the abrasive tank. The other outlet of the jet three-way valve is connected to a jet pipe connected to the jet crushing mechanism. Its structure is reasonable, the device is simple, it can reduce manpower and material input, lower labor intensity, and is safe and reliable. The steps of this invention are reasonably set, the process is simple, and it can simultaneously remove concrete slag and rust from the surface of steel pipes, achieving integrated removal of concrete and rust. The primary crushing mechanism crushes large pieces of concrete and slag and provides power for the steel pipe to move forward. When the steel pipe reaches the jet crushing mechanism, the nozzles remove the remaining concrete slag and rust. It is not limited by site conditions and has high working efficiency.

[0005] Currently, steel pipe recycling mainly involves manual labor using tools such as hammers and chisels to remove concrete blocks, using wire brushes to grind away rust, and then manually applying anti-corrosion coatings. However, the results of manual cleaning are inconsistent, concrete blocks and stubborn dirt are difficult to remove completely, rust is not thoroughly ground, and the anti-corrosion coating is not applied evenly. Some recycling equipment can only perform a single cleaning function and cannot complete the integrated operation of cleaning, rust removal, and anti-corrosion, requiring multiple transfers of steel pipes and reducing operational efficiency. Summary of the Invention

[0006] The purpose of this invention is to provide a steel pipe recycling device for construction projects and its usage method.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a steel pipe recycling device for construction engineering, comprising a workbench, a shock-absorbing support frame, a controller assembly, a cleaning box, a waste collection box, a paint storage box, an anti-corrosion treatment mechanism, and a drying mechanism. The cleaning box, the anti-corrosion treatment mechanism, and the drying mechanism are arranged sequentially on the workbench along the steel pipe conveying direction. A reserved opening is provided on both sides of the cleaning box. A mud and concrete scraping ring frame and a rust removal assembly are fixedly installed inside the cleaning box, and the rust removal assembly is installed behind the mud and concrete scraping ring frame. The mud and concrete scraping ring frame is shaped like a frustum, and the inner diameter of the mud and concrete scraping ring frame is larger than the outer diameter of the steel pipe. The mud and concrete scraping ring frame, the rust removal assembly, the anti-corrosion treatment mechanism, and the drying mechanism are arranged on the same horizontal plane.

[0008] Preferably, the workbench is provided with two mounting slots, which are located at both ends of the workbench. A feeding assembly and a discharging assembly are respectively mounted above the two mounting slots, and the feeding and discharging assemblies are movably connected along the mounting slots. The feeding and discharging assemblies have the same structure. The feeding assembly includes a base, a slider, a threaded hole, two conveying rollers, a chute, two clamping blocks, two electric telescopic cylinders, and an arc-shaped rubber pad. The chute is longitudinally located at the center of the upper end of the base. The two clamping blocks are slidably mounted inside the chute. The arc-shaped rubber pad is fixedly mounted on the opposing surfaces of the two clamping blocks. The two electric telescopic cylinders are fixedly mounted on the chute. At both ends of the groove, the telescopic end of the electric telescopic cylinder is connected to the clamping block. The two conveying rollers are symmetrically fixedly installed above both sides of the groove. The slider is horizontally fixedly installed below the base and slides inside the groove. The threaded hole is set on the slider and is set along the direction of the slider. A first drive motor is fixedly installed on one side of both ends of the worktable. A ball screw is rotatably installed inside both mounting grooves, and one end of the ball screw is connected to the output end of the first drive motor. The ball screw and the slider are threadedly connected through the threaded hole. The electric telescopic cylinder and the first drive motor are electrically connected to the controller assembly.

[0009] Preferably, the workbench is provided with two through slots, and the cleaning box and the waste collection box are respectively fixedly installed above and below one through slot. The anti-corrosion treatment mechanism and the drying mechanism are installed above the other through slot, and the paint storage box is fixedly installed below the anti-corrosion treatment mechanism and the drying mechanism. The bottom of the reserved opening is rotatably installed with a support roller, and the support roller is flush with the upper end of the conveying roller.

[0010] Preferably, the rust removal assembly includes two mounting brackets, a hollow tube, bearings, a rust removal brush, a groove, a second drive motor, a drive wheel, and a belt. The two mounting brackets are fixedly installed inside the cleaning box, and the hollow tube is installed between the two mounting brackets. The bearings are fitted onto the outside of both ends of the hollow tube, and both ends of the hollow tube are rotatably connected to the mounting brackets via the bearings. The rust removal brush is fixedly installed inside the hollow tube. The groove is located on the outer surface of the center of the hollow tube. The second drive motor is fixedly installed inside the through groove. The drive wheel is connected to the output end of the second drive motor. The belt is installed between the hollow tube and the drive wheel, and the hollow tube and the drive wheel are connected via belt drive. The second drive motor is electrically connected to the controller assembly.

[0011] Preferably, a transparent cover is rotatably installed on the upper front end of the cleaning box, and the transparent cover is L-shaped. A dust collection assembly is installed on the upper part of the cleaning box. The dust collection assembly includes a dust hood, a dust collection pipe, a dust collection box, and a dust pump. The dust hood is fixedly installed on the top of the cleaning box. The dust collection box and the dust pump are fixedly installed on the upper part of the cleaning box, and the dust collection box and the dust pump are connected. The dust hood and the dust collection box are connected through a dust collection pipe. The dust pump is electrically connected to the controller assembly.

[0012] Preferably, the anti-corrosion treatment mechanism includes a spraying ring, a spraying pump, a spraying pipe, three nozzles, and a reserved cavity. The spraying ring is fixedly installed above the through groove, the spraying pump is fixedly installed at the bottom of the paint storage tank, the three nozzles are fixedly installed equidistantly on the inner side of the spraying ring, and the nozzles are connected to the reserved cavity. The spraying pump is connected to the spraying ring through the spraying pipe, and the spraying pump is electrically connected to the controller assembly.

[0013] Preferably, the drying mechanism includes a drying ring, a mounting cavity, an electric heating block, a perforated plate, and a blower. The drying ring is fixedly installed on one side of the spraying ring, the electric heating block is fixedly installed inside the mounting cavity, the perforated plate is fixedly installed on the inner wall of the drying ring and is installed on one side of the electric heating block, the blower is fixedly installed above the drying ring and is connected to the mounting cavity, and the electric heating block and the blower are electrically connected to the controller assembly.

[0014] A method for using a steel pipe recycling device for construction projects, the specific operating steps of which are as follows: Step 1: Place the steel pipe to be recycled on the two conveying rollers of the feeding assembly. Control the two electric telescopic cylinders to extend synchronously through the controller assembly, push the two clamping blocks close to the steel pipe and make contact with it, clamping the steel pipe from both sides. Step 2: The controller component controls the first drive motor to drive the ball screw to rotate. Through the threaded engagement between the ball screw and the slider, the feeding component moves along the mounting groove towards the cleaning box. One end of the steel pipe is aligned with the mud and concrete scraper ring and inserted. The mud and concrete scraper ring removes the mud and residual concrete adhering to the outer wall of the steel pipe. The steel pipe then enters the hollow tube. The controller component controls the second drive motor to drive the drive wheel to rotate. Through the cooperation of the drive wheel, the hollow tube, and the belt drive, the hollow tube rotates outside the steel pipe. The rust removal brush inside the hollow tube rotates with the hollow tube to rotate and grind away the rust on the outer wall of the steel pipe. Step 3: During the cleaning process, the vacuum pump in the vacuum assembly is activated. The vacuum pump generates strong suction, which draws out the dust-laden air from inside the cleaning box through the vacuum hood. The dust-laden air is then sent into the dust collection box for filtration and collection through the vacuum pipe. Step 4: After cleaning, the steel pipe enters the spraying ring. The spraying pump is started to extract the anti-corrosion coating from the coating storage tank and deliver it through the spraying pipe to the reserved cavity of the spraying ring. Then, it is evenly sprayed onto the outer surface of the steel pipe through three equally spaced nozzles. Step 5: The coated steel pipe enters the drying ring. The blower is started to draw air into the installation cavity of the drying ring. The electric heating block is started to heat the air in the installation cavity. The hot air is then blown evenly onto the anti-corrosion coating on the surface of the steel pipe through the perforated plate to accelerate the drying and curing of the coating. After the treatment is completed, the steel pipe is transported to the unloading assembly. The unloading assembly moves the steel pipe to the unloading position and removes the processed steel pipe.

[0015] In summary, the beneficial technical effects of the present invention are as follows: 1. The system employs a mud and concrete scraper ring, a rust removal component, and a dust collection component. One end of the steel pipe is inserted into the mud and concrete scraper ring. The scraper ring removes the mud and residual concrete adhering to the outer wall of the steel pipe. The steel pipe then enters the hollow tube. The second drive motor drives the drive wheel to rotate. Through the drive wheel, the hollow tube, and the belt drive, the hollow tube rotates outside the steel pipe. The rust removal brush inside the hollow tube adheres to the outer surface of the steel pipe and rotates with the hollow tube, rotating and grinding away the rust on the outer wall of the steel pipe. The dust collection component extracts and filters the dust from the cleaning box. 2. An anti-corrosion treatment mechanism and a drying mechanism are adopted. The steel pipe enters the spraying ring, and the spraying pump draws the anti-corrosion coating from the coating storage tank. The coating is then evenly sprayed onto the outer surface of the steel pipe through three equally spaced nozzles to improve the anti-corrosion performance of the outer surface of the steel pipe. The steel pipe enters the drying ring, and the blower draws air into the installation cavity of the drying ring. The electric heating block heats the air in the installation cavity, and the hot air is evenly blown onto the anti-corrosion coating on the surface of the steel pipe through a perforated plate to accelerate the drying and curing of the coating and improve the anti-corrosion effect of the steel pipe. 3. The system employs a feeding assembly, a discharging assembly, a first drive motor, and a ball screw. The steel pipe is placed on two conveying rollers, and two electric telescopic cylinders extend synchronously to push two clamping blocks to slide close to and contact the steel pipe in the chute, clamping it from both sides. The first drive motor drives the ball screw to rotate, and through the threaded engagement between the ball screw and the slider, it drives the feeding assembly or the discharging assembly to move along the mounting groove, thereby realizing the feeding or discharging of the steel pipe. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a diagram of the internal structure of the cleaning box of this invention; Figure 3 This is the present invention. Figure 2 A magnified view of a portion of area A; Figure 4 This is a structural diagram of the anti-corrosion treatment mechanism of the present invention; Figure 5 This is a structural diagram of the feeding component of the present invention; Figure 6 This is a structural diagram of the dust collection component of the present invention; Figure 7 This is a diagram showing the connection relationship between the nozzle and the spraying ring of the present invention; Figure 8 This is a structural diagram of the drying mechanism of the present invention.

[0017] In the diagram, 1. Workbench; 2. Shock-absorbing support frame; 3. Controller assembly; 4. Mounting slot; 5. Feeding assembly; 501. Base; 502. Slider; 503. Threaded hole; 504. Conveying roller; 505. Slide rail; 506. Clamping block; 507. Electric telescopic cylinder; 508. Rubber pad; 6. First drive motor; 7. Ball screw; 8. Cleaning box; 9. Transparent cover; 10. Dust collection assembly; 1001. Dust hood; 1002. Dust collection pipe; 1003. Dust collection box; 1004. Dust pump; 11. Waste collection box; 12. Reserved opening; 13. Through groove; 14. Paint storage box; 15. Corrosion-resistant material. Processing mechanism; 1501, spraying ring; 1502, spraying pump; 1503, spraying pipe; 1504, spray nozzle; 1505, reserved cavity; 16, drying mechanism; 1601, drying ring; 1602, mounting cavity; 1603, electric heating block; 1604, perforated plate; 1605, blower; 17, feeding assembly; 18, support roller; 19, mud and concrete scraper ring frame; 20, rust removal assembly; 2001, mounting frame; 2002, hollow tube; 2003, bearing; 2004, rust removal brush; 2005, grooved; 2006, second drive motor; 2007, drive wheel; 2008, belt. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-8 The present invention provides a technical solution: a steel pipe recycling device for construction engineering, including a workbench 1, a shock-absorbing support frame 2, a controller assembly 3, a cleaning box 8, a waste collection box 11, a paint storage box 14, an anti-corrosion treatment mechanism 15, and a drying mechanism 16. The cleaning box 8, the anti-corrosion treatment mechanism 15, and the drying mechanism 16 are arranged sequentially on the workbench 1 along the steel pipe conveying direction. A reserved opening 12 is provided on both sides of the cleaning box 8. A mud and concrete scraping ring frame 19 and a rust removal component 20 are fixedly installed inside the cleaning box 8. The rust removal component 20 is installed behind the mud and concrete scraping ring frame 19. The mud and concrete scraping ring frame 19 is shaped like a frustum, and the inner diameter of the mud and concrete scraping ring frame 19 is larger than the outer diameter of the steel pipe. The mud and concrete scraping ring frame 19, the rust removal component 20, the anti-corrosion treatment mechanism 15, and the drying mechanism 16 are arranged on the same horizontal plane.

[0021] Please see Figure 1 and Figure 5 The workbench 1 has two mounting slots 4, located at both ends of the workbench 1. A feeding assembly 5 and a discharging assembly 17 are respectively mounted above the two mounting slots 4, and are movably connected along the mounting slots 4. The feeding assembly 5 and the discharging assembly 17 have the same structure. The feeding assembly 5 includes a base 501, a slider 502, a threaded hole 503, two conveying rollers 504, a chute 505, two clamping blocks 506, two electric telescopic cylinders 507, and an arc-shaped rubber pad 508. The chute 505 is longitudinally located at the center of the upper end of the base 501. The two clamping blocks 506 are slidably mounted inside the chute 505. The arc-shaped rubber pad 508 is fixedly mounted on the opposite surfaces of the two clamping blocks 506. The two electric telescopic cylinders 507 are fixedly mounted on the chute. At both ends of 505, the telescopic end of the electric telescopic cylinder 507 is connected to the clamping block 506. Two conveying rollers 504 are symmetrically fixedly installed above both sides of the slide groove 505. The slider 502 is horizontally fixedly installed below the base 501 and slides inside the slide groove 505. The threaded hole 503 is set on the slider 502 and is set along the direction of the slider 502. A first drive motor 6 is fixedly installed on one side of both ends of the worktable 1. A ball screw 7 is rotatably installed inside the two mounting slots 4 and one end of the ball screw 7 is connected to the output end of the first drive motor 6. The ball screw 7 and the slider 502 are connected by a threaded connection through the threaded hole 503. The electric telescopic cylinder 507 and the first drive motor 6 are electrically connected to the controller assembly 3.

[0022] The steel pipe is placed on two conveying rollers 504, and two electric telescopic cylinders 507 extend synchronously. The electric telescopic cylinders 507 push two clamping blocks 506 to slide close to and contact the steel pipe in the slide groove 505, clamping it from both sides. The arc-shaped rubber pad 508 protects the clamped steel pipe. The first drive motor 6 is started to drive the ball screw 7 to rotate. Through the threaded engagement between the ball screw 7 and the slider 502, the feeding assembly 5 or the unloading assembly 17 is driven to move along the mounting groove 4 to realize the feeding or unloading of the steel pipe.

[0023] Please see Figure 1 , Figure 2 and Figure 3The workbench 1 is provided with two through slots 13, and the cleaning box 8 and the waste collection box 11 are respectively fixedly installed above and below one through slot 13. The anti-corrosion treatment mechanism 15 and the drying mechanism 16 are installed above the other through slot 13, and the paint storage box 14 is fixedly installed below the anti-corrosion treatment mechanism 15 and the drying mechanism 16. The bottom of the reserved opening 12 is rotatably mounted with a support roller 18, and the support roller 18 is flush with the upper end of the conveying roller 504. The rust removal assembly 20 includes two mounting brackets 2001, a hollow tube 2002, a bearing 2003, a rust removal brush 2004, a groove 2005, a second drive motor 2006, a drive wheel 2007, and a belt 2008. The two mounting brackets 2001 are fixedly installed inside the cleaning box 8. The hollow tube 2002 is installed between two mounting brackets 2001. The bearings 2003 are fitted on the outside of both ends of the hollow tube 2002, and both ends of the hollow tube 2002 are rotatably connected to the mounting brackets 2001 through the bearings 2003. The rust removal brush 2004 is fixedly installed inside the hollow tube 2002. The groove 2005 is set on the outer surface of the center of the hollow tube 2002. The second drive motor 2006 is fixedly installed inside the through groove 13. The drive wheel 2007 is connected to the output end of the second drive motor 2006. The belt 2008 is installed between the hollow tube 2002 and the drive wheel 2007, and the hollow tube 2002 and the drive wheel 2007 are connected by the belt 2008. The second drive motor 2006 is electrically connected to the controller assembly 3.

[0024] The second drive motor 2006 drives the drive wheel 2007 to rotate. Through the transmission cooperation of the drive wheel 2007, hollow tube 2002 and belt 2008, the hollow tube 2002 rotates outside the steel pipe. The rust removal brush 2004 inside the hollow tube 2002 adheres to the outer surface of the steel pipe and rotates with the hollow tube 2002 to rotate and grind away the rust on the outer wall of the steel pipe. The scraped mud, residual concrete and impurities from grinding fall into the waste collection box 11 for collection.

[0025] Please see Figure 1 and Figure 6 A transparent cover 9 is rotatably installed on the upper front end of the cleaning box 8, and the transparent cover 9 is L-shaped. A dust collection assembly 10 is installed on the upper part of the cleaning box 8. The dust collection assembly 10 includes a dust hood 1001, a dust collection pipe 1002, a dust collection box 1003, and a dust pump 1004. The dust hood 1001 is fixedly installed on the top of the cleaning box 8. The dust collection box 1003 and the dust pump 1004 are fixedly installed on the upper part of the cleaning box 8, and the dust collection box 1003 and the dust pump 1004 are connected. The dust hood 1001 and the dust collection box 1003 are connected through the dust collection pipe 1002. The dust pump 1004 is electrically connected to the controller assembly 3.

[0026] The vacuum pump 1004 is activated to generate a strong suction force, which draws out the dust-laden air inside the cleaning box through the vacuum hood 1001. The dust-laden air is then sent into the dust collection box 1003 for filtration and collection through the vacuum pipe 1002.

[0027] Please see Figure 1 , Figure 4 and Figure 7 The anti-corrosion treatment mechanism 15 includes a spraying ring 1501, a spraying pump 1502, a spraying pipe 1503, three nozzles 1504, and a reserved cavity 1505. The spraying ring 1501 is fixedly installed above the through groove 13. The spraying pump 1502 is fixedly installed at the bottom of the paint storage tank 14. The three nozzles 1504 are fixedly installed at equal intervals on the inner side of the spraying ring 1501, and the nozzles 1504 are connected to the reserved cavity 1505. The spraying pump 1502 is connected to the spraying ring 1501 through the spraying pipe 1503. The spraying pump 1502 is electrically connected to the controller assembly 3.

[0028] The steel pipe enters the spraying ring 1501, the spraying pump 1502 is started to extract the anti-corrosion coating from the coating storage tank 14, and delivers it through the spraying pipe 1503 to the reserved cavity 1505 of the spraying ring 1501. Then, it is evenly sprayed onto the outer surface of the steel pipe through three equally spaced nozzles 1504 to achieve anti-corrosion treatment of the outer surface of the steel pipe.

[0029] Please see Figure 1 and Figure 8 The drying mechanism 16 includes a drying ring 1601, a mounting cavity 1602, an electric heating block 1603, a perforated plate 1604, and a blower 1605. The drying ring 1601 is fixedly installed on one side of the spraying ring 1501. The electric heating block 1603 is fixedly installed inside the mounting cavity 1602. The perforated plate 1604 is fixedly installed on the inner wall of the drying ring 1601 and is installed on one side of the electric heating block 1603. The blower 1605 is fixedly installed above the drying ring 1601 and is connected to the mounting cavity 1602. The electric heating block 1603 and the blower 1605 are electrically connected to the controller assembly 3.

[0030] The steel pipe enters the drying ring 1601. The blower 1605 is started to draw air into the mounting cavity 1602 of the drying ring 1601. The electric heating block 1603 is started to heat the air in the mounting cavity 1602. The hot air is then blown evenly onto the anti-corrosion coating on the surface of the steel pipe through the perforated plate 1604 to accelerate the drying and curing of the coating and indirectly improve the anti-corrosion effect.

[0031] A method for using a steel pipe recycling device for construction projects, the specific operating steps of which are as follows: Step 1: Place the steel pipe to be recycled on the two conveying rollers 504 of the feeding assembly. Control the two electric telescopic cylinders 507 to extend synchronously through the controller assembly 3, push the two clamping blocks 506 to slide close to the steel pipe and contact it, clamping the steel pipe from both sides. Step 2: The controller assembly 3 controls the first drive motor 6 to drive the ball screw 7 to rotate. Through the threaded engagement between the ball screw 7 and the slider 502, the feeding assembly 5 moves along the mounting groove 4 towards the cleaning box 8. One end of the steel pipe is aligned with the mud and concrete scraping ring 19 and inserted. The mud and concrete scraping ring 19 is used to scrape off the mud and residual concrete adhering to the outer wall of the steel pipe. The steel pipe then enters the hollow tube 2002. The controller assembly 3 controls the second drive motor 2006 to drive the drive wheel 2007 to rotate. Through the transmission cooperation of the drive wheel 2007, the hollow tube 2002 and the belt 2008, the hollow tube 2002 rotates outside the steel pipe. The rust removal brush 2004 inside the hollow tube 2002 rotates with the hollow tube 2002 to rotate and grind away the rust on the outer wall of the steel pipe. Step 3: During the cleaning process, the vacuum pump 1004 in the vacuum assembly 10 is started simultaneously. Under the action of the vacuum pump 1004, a strong suction is generated, and the dust-laden air inside the cleaning box is drawn out through the vacuum hood 1001. The dust-laden air is sent into the dust collection box 1003 for filtration and collection along the vacuum pipe 1002. Step 4: The cleaned steel pipe enters the spraying ring 1501. The spraying pump 1502 is started to extract the anti-corrosion coating from the coating storage tank 14 and deliver it through the spraying pipe 1503 to the reserved cavity 1505 of the spraying ring 1501. Then, it is evenly sprayed onto the outer surface of the steel pipe through three equally spaced nozzles 1504. Step 5: The coated steel pipe enters the drying ring 1601. The blower 1605 is started to draw air into the mounting cavity 1602 of the drying ring 1601. The electric heating block 1603 is started to heat the air in the mounting cavity 1602. The hot air is then blown evenly onto the anti-corrosion coating on the surface of the steel pipe through the perforated plate 1604 to accelerate the drying and curing of the coating. After the treatment is completed, the steel pipe is transported to the unloading assembly 17. The unloading assembly 17 moves the steel pipe to the unloading position and removes the processed steel pipe.

[0032] In summary, this invention adopts a linear integrated layout, arranging cleaning, rust removal, spraying, and drying sequentially along the conveying direction. In conjunction with the feeding mechanism, the steel pipe is subjected to concrete scraping, rust removal, spraying, and drying in sequence. The coating is immediately dried and cured by hot air after spraying, eliminating the need to wait for natural drying and reducing the number of transfer links. The feeding mechanism of this invention is clamped and positioned by the clamping block of the feeding component and the arc-shaped rubber pad. The feeding component and the unloading component are driven by ball screws and a first drive motor, so that the feeding component and the unloading component move along the mounting groove without manual assistance. It can continuously transport steel pipes, reduce labor costs and labor intensity. With the support roller and the conveying roller flush support, the steel pipe has no deviation or shaking throughout the process, realizing the integrated operation of cleaning, rust removal, corrosion prevention and drying. Through automated loading and unloading, continuous processing and instant drying, the operation efficiency is greatly improved. The cleaning mechanism of the present invention is equipped with a dust suction component, which is composed of a dust suction hood, a dust suction pump and a dust collection box. It can extract dust-laden air from the cleaning box and achieve centralized filtration and collection of dust.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still 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 steel pipe recycling device for construction engineering, comprising a workbench (1), a shock-absorbing support frame (2), a controller assembly (3), a cleaning box (8), a waste collection box (11), a paint storage box (14), an anti-corrosion treatment mechanism (15), and a drying mechanism (16), wherein the cleaning box (8), the anti-corrosion treatment mechanism (15), and the drying mechanism (16) are arranged sequentially on the workbench (1) along the steel pipe conveying direction, characterized in that: The cleaning box (8) has a reserved opening (12) on both sides. The cleaning box (8) is fixedly installed with a mud and concrete scraper ring frame (19) and a rust removal component (20). The rust removal component (20) is installed behind the mud and concrete scraper ring frame (19). The mud and concrete scraper ring frame (19) is shaped like a frustum. The inner diameter of the mud and concrete scraper ring frame (19) is larger than the outer diameter of the steel pipe. The mud and concrete scraper ring frame (19), the rust removal component (20), the anti-corrosion treatment mechanism (15), and the drying mechanism (16) are arranged on the same horizontal plane.

2. The steel pipe recycling equipment for construction projects according to claim 1, characterized in that: The workbench (1) is provided with two mounting slots (4), and the two mounting slots (4) are located at both ends of the workbench (1). A feeding assembly (5) and a discharging assembly (17) are respectively installed above the two mounting slots (4), and the feeding assembly (5) and the discharging assembly (17) are movably connected along the mounting slots (4). The feeding assembly (5) and the discharging assembly (17) have the same structure. The feeding assembly (5) includes a base (501), a slider (502), a threaded hole (503), two conveying rollers (504), a slide groove (505), two clamping blocks (506), two electric telescopic cylinders (507), and an arc-shaped rubber pad (508). The slide groove (505) is longitudinally located at the center of the upper end of the base (501). The two clamping blocks (506) are slidably installed inside the slide groove (505). The arc-shaped rubber pad (508) is fixedly installed on the opposite surface of the two clamping blocks (506). The two electric telescopic cylinders (507) are fixedly installed on the opposite surface of the two clamping blocks (506). The two conveying rollers (504) are symmetrically fixedly installed on the upper sides of the slide groove (505). The slider (502) is horizontally fixedly installed below the base (501) and slides inside the slide groove (505). The threaded hole (503) is set on the slider (502) and is set along the direction of the slider (502). A first drive motor (6) is fixedly installed on one side of both ends of the worktable (1). A ball screw (7) is rotatably installed inside the two mounting slots (4). One end of the ball screw (7) is connected to the output end of the first drive motor (6). The ball screw (7) and the slider (502) are connected through the threaded hole (503). The electric telescopic cylinder (507) and the first drive motor (6) are electrically connected to the controller assembly (3).

3. The steel pipe recycling equipment for construction projects according to claim 2, characterized in that: The workbench (1) is provided with two through slots (13), and the cleaning box (8) and the waste collection box (11) are fixedly installed above and below one through slot (13), respectively. The anti-corrosion treatment mechanism (15) and the drying mechanism (16) are installed above the other through slot (13), and the paint storage box (14) is fixedly installed below the anti-corrosion treatment mechanism (15) and the drying mechanism (16). The bottom of the reserved opening (12) is rotatably installed with a support roller (18), and the support roller (18) is flush with the upper end of the conveying roller (504).

4. The steel pipe recycling equipment for construction projects according to claim 3, characterized in that: The rust removal assembly (20) includes two mounting brackets (2001), a hollow tube (2002), a bearing (2003), a rust removal brush (2004), a grooved section (2005), a second drive motor (2006), a drive wheel (2007), and a belt (2008). The two mounting brackets (2001) are fixedly installed inside the cleaning box (8), and the hollow tube (2002) is installed between the two mounting brackets (2001). The bearing (2003) is fitted onto the outside of both ends of the hollow tube (2002), and both ends of the hollow tube (2002) are rotatably connected to the mounting brackets (2001) via the bearings (2003). The rust removal brush (2004) is fixedly installed inside the hollow tube (2002), the groove (2005) is set on the outer surface of the center of the hollow tube (2002), the second drive motor (2006) is fixedly installed inside the through groove (13), the drive wheel (2007) is connected to the output end of the second drive motor (2006), the belt (2008) is installed between the hollow tube (2002) and the drive wheel (2007), and the hollow tube (2002) and the drive wheel (2007) are connected by the belt (2008) for transmission. The second drive motor (2006) is electrically connected to the controller assembly (3).

5. The steel pipe recycling equipment for construction projects according to claim 4, characterized in that: A transparent cover plate (9) is rotatably installed on the upper front end of the cleaning box (8), and the transparent cover plate (9) is L-shaped. A dust collection assembly (10) is installed on the upper part of the cleaning box (8). The dust collection assembly (10) includes a dust hood (1001), a dust collection pipe (1002), a dust collection box (1003), and a dust pump (1004). The dust hood (1001) is fixedly installed on the top of the cleaning box (8). The dust collection box (1003) and the dust pump (1004) are fixedly installed on the upper part of the cleaning box (8), and the dust collection box (1003) and the dust pump (1004) are connected. The dust hood (1001) and the dust collection box (1003) are connected through the dust collection pipe (1002). The dust pump (1004) is electrically connected to the controller assembly (3).

6. A steel pipe recycling device for construction projects according to claim 5, characterized in that: The anti-corrosion treatment mechanism (15) includes a spraying ring (1501), a spraying pump (1502), a spraying pipe (1503), three nozzles (1504), and a reserved cavity (1505). The spraying ring (1501) is fixedly installed above the through groove (13). The spraying pump (1502) is fixedly installed at the bottom of the paint storage tank (14). The three nozzles (1504) are fixedly installed at equal intervals on the inner side of the spraying ring (1501), and the nozzles (1504) are connected to the reserved cavity (1505). The spraying pump (1502) is connected to the spraying ring (1501) through the spraying pipe (1503). The spraying pump (1502) is electrically connected to the controller assembly (3).

7. A steel pipe recycling device for construction engineering according to claim 6, characterized in that: The drying mechanism (16) includes a drying ring (1601), a mounting cavity (1602), an electric heating block (1603), a perforated plate (1604), and a blower (1605). The drying ring (1601) is fixedly installed on one side of the spraying ring (1501). The electric heating block (1603) is fixedly installed inside the mounting cavity (1602). The perforated plate (1604) is fixedly installed on the inner wall of the drying ring (1601) and is installed on one side of the electric heating block (1603). The blower (1605) is fixedly installed above the drying ring (1601) and is connected to the mounting cavity (1602). The electric heating block (1603) and the blower (1605) are electrically connected to the controller assembly (3).

8. A method of using a steel pipe recycling device for construction projects, characterized in that, The steel pipe recycling equipment for construction projects, as described in any one of claims 1 to 7, comprises the following specific operating steps: Step 1: Place the steel pipe to be recycled on the two conveying rollers (504) of the feeding assembly, and control the two electric telescopic cylinders (507) to extend synchronously through the controller assembly (3), push the two clamping blocks (506) to slide close to the steel pipe and contact it, and clamp it from both sides of the steel pipe; Step 2: The controller assembly (3) controls the first drive motor (6) to drive the ball screw (7) to rotate. Through the threaded engagement between the ball screw (7) and the slider (502), the feeding assembly (5) is driven to move along the mounting groove (4) towards the cleaning box (8). One end of the steel pipe is aligned with the mud and concrete scraper ring (19) and inserted. The mud and concrete scraper ring (19) is used to scrape off the mud and residual concrete adhering to the outer wall of the steel pipe. The steel pipe then enters the hollow tube. In (2002), the second drive motor (2006) is controlled by the controller assembly (3) to drive the drive wheel (2007) to rotate. Through the transmission cooperation of the drive wheel (2007), hollow tube (2002) and belt (2008), the hollow tube (2002) is driven to rotate outside the steel pipe. The rust removal brush (2004) inside the hollow tube (2002) rotates with the hollow tube (2002) to rotate and grind away the rust on the outer wall of the steel pipe. Step 3: During the cleaning process, the vacuum pump (1004) in the vacuum assembly (10) is started simultaneously. Under the action of the vacuum pump (1004), a strong suction force is generated, and the dust-laden air inside the cleaning box is drawn out through the vacuum hood (1001). The dust-laden air is sent into the dust collection box (1003) for filtration and collection along the vacuum pipe (1002). Step 4: After cleaning, the steel pipe enters the spraying ring (1501), and the spraying pump (1502) is started to extract the anti-corrosion coating from the coating storage tank (14). The coating is then transported through the spraying pipe (1503) to the reserved cavity (1505) of the spraying ring (1501), and then evenly sprayed onto the outer surface of the steel pipe through three equally spaced nozzles (1504). Step 5: The coated steel pipe enters the drying ring (1601). The blower (1605) is started to draw air into the installation cavity (1602) of the drying ring (1601). The electric heating block (1603) is started to heat the air in the installation cavity (1602). Then, the hot air is blown evenly onto the anti-corrosion coating on the surface of the steel pipe through the perforated plate (1604) to accelerate the drying and curing of the coating. After the treatment is completed, the steel pipe is transported to the unloading assembly (17). With the help of the unloading assembly (17), the steel pipe is moved to the unloading position and the processed steel pipe is removed.

Images