Steel structure rust removal device for construction site

Abstract

The invention discloses a steel structure rust removal device for a construction site. The steel structure rust removal device comprises a walking plate trailer, a stirring box, a water storage box, a material storage box, a high-pressure pump, a liquid conveying pipe and an air compressor. The stirring box is fixed on the top surface of the walking plate trailer; a liquid outlet is formed in the bottom of one side wall of the stirring box; a water outlet communicated with the inner cavity of the stirring box is formed in the bottom wall of the water storage box; grinding materials are contained in the storage box, and a discharging gate is hinged to the bottom end of the storage box so that the grinding materials can be put into the stirring box and stirred and mixed with water to form grinding liquid; the high-pressure pump is fixed on the outer wall of the stirring box; an inlet of the high-pressure pump communicates with the liquid outlet; one end of the liquid conveying pipe is detachably connected with an outlet of the high-pressure pump, and a high-pressure nozzle is fixed at the other end; the air compressor is fixed to the top face of the walking plate trailer to provide high-pressure air, and an air outlet of the air compressor communicates with the liquid conveying pipe through an air pipe. Water and grinding materials are stirred to form mixed grinding liquid, the mixed grinding liquid is sprayed to the surface of the steel structure through high pressure for rust removal operation, and secondary pollution to the environment is avoided.

Description

Technical Field

[0001] This invention relates to the field of steel structure rust removal technology, and more specifically to a steel structure rust removal device for construction sites. Background Technology

[0002] Steel structures are a widely used structural form in modern construction engineering, possessing advantages such as high strength, light weight, fast construction speed, and good seismic performance. Steel structure construction involves multiple stages, including component fabrication, connection methods, and installation.

[0003] During steel structure construction, finished steel structures or raw steel materials inevitably rust during storage due to temperature, humidity, and the combined effects of the steel materials. To address this, rust removers are generally used. While this method is effective, it is extremely costly: 1. Rust removers are generally only suitable for small areas of rust. For large-scale rust removal, the cost of using rust removers is very high, placing a significant financial burden on construction companies; 2. Rust removers wear down the steel structure, leading to a decrease in its strength and compromising project quality; 3. After spraying, rust removers require continuous manual wiping, wasting manpower and resources; 5. The residue left by rust removers causes secondary pollution, hindering environmental protection.

[0004] Therefore, how to provide a rust removal device that is both environmentally friendly and can guarantee the quality of rust removal is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a steel structure rust removal device for construction sites, which mixes water and abrasive to form a mixed abrasive liquid and sprays it onto the steel structure surface under high pressure to remove rust, without causing secondary pollution to the environment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rust removal device for steel structures used on construction sites, comprising: Walking cart, A mixing tank is fixed to the top surface of the traveling trolley; a liquid outlet is provided at the bottom of one side wall of the mixing tank. A water storage tank is fixed to the top surface of the mixing tank, and an outlet communicating with the inner cavity of the mixing tank is provided on the bottom wall of the water storage tank. A storage tank containing abrasive material is fixed to the top surface of the mixing tank and a discharge gate is hinged to its bottom end to allow the abrasive material to be fed into the mixing tank and mixed with water to form a grinding fluid. A high-pressure pump is fixed to the outer wall of the mixing tank and its inlet is connected to the liquid outlet to pump the grinding fluid. An infusion tube, one end of which is detachably connected to the outlet of the high-pressure pump, and the other end of which is fixed with a high-pressure nozzle for rust removal. An air compressor is fixed to the top surface of the traveling cart to provide high-pressure air, and the air outlet of the air compressor is connected to the infusion pipe through an air pipe.

[0008] The beneficial effects of this invention are as follows: water and abrasive are mixed evenly in a mixing tank to form a grinding slurry. A high-pressure pump is used to pump the grinding slurry into a delivery pipe. Workers hold the nozzle end of the delivery pipe and spray it onto the steel structure to remove rust. The nozzle spraying method is more flexible and can remove rust from some dead corners of the steel structure, ensuring more thorough rust removal. Moreover, no large amount of dust is generated during the spraying process, effectively avoiding the health hazards of dust to workers and environmental pollution. During the pumping process, high-pressure air generated by an air compressor is used as the acceleration power for the grinding slurry, allowing the grinding slurry to treat the surface of the steel structure under high pressure, resulting in a more efficient treatment effect.

[0009] Preferably, the system also includes a reel rotatably connected to the outer wall of the mixing tank, with the infusion tube wound around the reel. Since the infusion tube is wound around the reel, the output length of the infusion tube can be adjusted by pulling the nozzle end of the infusion tube to rotate the reel, depending on the type of steel structure, thus broadening its applicability.

[0010] Preferably, the reel includes a rotating shaft and baffle rollers; one end of the rotating shaft is vertically rotatably connected to the outer wall of the mixing tank; there are two baffle rollers, each fixed to one end of the rotating shaft; the infusion tube is wound around the rotating shaft and confined between the two baffle rollers. The baffle rollers prevent the infusion tube from becoming tangled or unraveling on the rotating shaft.

[0011] Preferably, it further includes a pressure rod; the stop roller includes a support rod and an annular wheel; one end of the support rod is fixed to the outer wall of the rotating shaft, and the other end is fixed to the inner annular surface of the annular wheel; the support rods on the two stop rollers are arranged opposite to each other, and the two opposite side walls of the two support rods are provided with sliding grooves; the two ends of the pressure rod are respectively slidably connected in the two sliding grooves and can abut against the outer wall of the infusion tube. By setting the pressure rod, the infusion tube can be restricted between the two stop rollers, preventing the infusion tube from detaching from the reel.

[0012] Preferably, a one-way valve is fixed to the end of the infusion tube away from the nozzle. The one-way valve ensures that the grinding fluid can only move towards the nozzle, preventing backflow of the grinding fluid when the infusion tube is disassembled.

[0013] Preferably, a weight sensor is fixed to the discharge gate; a water flow regulating valve is fixed to the bottom wall of the water storage tank corresponding to the water outlet. The weight sensor is used to weigh the abrasive material put into the mixing tank, and the water flow regulating valve is used to control the water flow to ensure that the mixing ratio of the grinding fluid meets the requirements.

[0014] Preferably, it also includes a T-connector; the outlet of the high-pressure pump is fixed with a connecting pipe; the first hole of the T-connector is detachably connected to the connecting pipe, the second hole is connected to the air pipe, and the third hole is connected to the infusion pipe. The T-connector is used to achieve communication between the connecting pipe, the infusion pipe, and the air compression pipe.

[0015] Preferably, the mixing tank includes a tank body, augers, a motor, and a synchronous belt; the number of augers is multiple and arranged in parallel; the multiple augers are rotatably connected to the tank body; the motor is fixed to the outer wall of the tank body and its output shaft is fixed to the main shaft of one of the augers; a synchronous pulley is fixed to one end of each auger away from the motor; the synchronous belt connects the multiple synchronous pulleys. The synchronous rotation of the multiple augers is achieved by the motor and the synchronous belt. During rotation, the augers can mix water and abrasive evenly and push the grinding fluid towards the outlet, ensuring the pumping effect of the high-pressure pump on the grinding fluid.

[0016] Preferably, it also includes support legs; the number of support legs is multiple, and their upper ends are fixed to the bottom wall of the mixing tank, and their lower ends are fixed to the top surface of the traveling cart; the air compressor is located below the mixing tank and is surrounded by the multiple support legs. The vertical arrangement of the mixing tank and the air compressor makes the structure more compact and saves space occupied by the traveling cart.

[0017] Preferably, the system also includes a paint bucket, which is fixed to the top surface of the traveling trolley and has a stirrer fixed to its top wall for stirring the paint inside. A delivery pump is fixed to the bottom wall of the paint bucket, and a paint pipe is connected to the outlet of the delivery pump. The end of the paint pipe away from the delivery pump can be connected to the infusion pipe. After rust removal, the connection between the connecting pipe and the tee pipe is disconnected, and the paint pipe is connected to the tee pipe. High-pressure air and the delivery pump are then used to spray paint the rust-removed steel structure.

[0018] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a steel structure rust removal device for construction sites. The abrasive is mixed with water to form a grinding fluid, and no large amount of dust is generated during the spraying process, effectively avoiding the harm of dust to the health of operators and the pollution to the environment. The spraying pressure, flow rate and spraying angle of the grinding fluid can be precisely controlled, enabling fine rust removal treatment of complex-shaped steel structures. The spraying of the grinding fluid is more uniform, which can ensure the consistency of the steel structure surface treatment and avoid surface quality problems caused by uneven spraying. During the spraying process, water can absorb heat, preventing the steel structure surface from discoloration or deformation due to friction heating during the spraying process. It is suitable for a variety of metal materials, such as carbon steel, stainless steel, aluminum alloy, titanium alloy, etc., and is especially suitable for materials with high surface quality requirements. It can not only be used for steel structure rust removal, but also for steel structure descaling, deburring, old paint removal, surface roughening, and finishing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the rust removal device provided by the present invention; Figure 2 A cross-sectional view of the rust removal device provided by the present invention; Figure 3 This is a schematic diagram of the roll structure provided by the present invention; Figure 4 This is a schematic diagram of the mixing tank structure provided by the present invention.

[0021] Among them, 1-walking trolley; 2-mixing tank; 21-box body; 22-auger; 23-motor; 24-synchronous pulley; 25-synchronous belt; 26-liquid outlet; 3-water storage tank; 31-water flow regulating valve; 4-material storage tank; 41-discharge gate; 5-air compressor; 51-air pipe; 6-paint bucket; 61-mixer; 62-paint pipe; 7-drum; 71-shaft; 72-thrust wheel; 721-support rod; 722-ring wheel; 73-pressure rod; 8-high pressure pump; 9-liquid delivery pipe; 10-tee pipe. Detailed Implementation

[0022] 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.

[0023] Participate in the attached Figure 1 Up to 4, embodiments of the present invention disclose a steel structure rust removal device for construction sites. It employs a method of mixing abrasive and water to form an abrasive slurry, utilizing high-pressure airflow and the power of a high-pressure pump to accelerate and spray the abrasive slurry onto the surface of the steel structure to be treated. The rust removal operation is performed using friction and impact force, while the abrasive slurry washes away rust from the steel structure surface without generating dust, making the rust removal operation more environmentally friendly and efficient. The device includes a traveling trolley 1, a mixing tank 2, a water tank 3, a material storage tank 4, a high-pressure pump 8, a liquid delivery pipe 9, and an air compressor 5. One end of the traveling trolley 1 is fixed with a handrail, allowing movement of the trolley 1 by pushing the handrail. The mixing tank 2 is fixed to the top surface of the traveling trolley 1. One side wall of the mixing tank 2 has an opening at the bottom. The mixing tank 2 is equipped with a liquid outlet 26; a water storage tank 3 is fixed on the top surface of the mixing tank 2, and a water outlet is opened on the bottom wall of the water storage tank 3 to connect to the inner cavity of the mixing tank 2; a material storage tank 4 contains abrasive, and the material storage tank 4 is fixed on the top surface of the mixing tank 2 and its bottom end is hinged with a discharge gate 41 to put the abrasive into the mixing tank 2 and mix the abrasive with water to form a grinding liquid; a high-pressure pump 8 is fixed on the outer wall of the mixing tank 2 and its inlet is connected to the liquid outlet 26 to pump the grinding liquid; one end of the liquid delivery pipe 9 is detachably connected to the outlet of the high-pressure pump 8, and the other end is fixed with a high-pressure nozzle for rust removal; an air compressor 5 is fixed on the top surface of the traveling trolley 1 to provide high-pressure air, and the air outlet of the air compressor 5 is connected to the liquid delivery pipe 9 through an air pipe 51. The abrasive is steel shot or sand, which is mixed with rainwater to form an abrasive slurry. This slurry is then sprayed onto the surface of the steel structure using a high-pressure pump and a high-pressure nozzle. The friction and impact of the abrasive are used to remove rust. During the spraying process, the high-pressure air generated by the air compressor accelerates the abrasive slurry, improving the rust removal effect and quality. The high-pressure nozzle is also more flexible in use, meeting the needs of removing rust from complex-shaped steel structures without dead angles. Liquid spray rust removal does not generate dust and will not cause secondary environmental pollution.

[0024] like Figure 1 and 2 As shown, both the water tank and the material storage tank are fixed to the top of the mixing tank. The water tank is completely enclosed, and its side wall has an inlet for connecting to a water source. Enclosing the water tank prevents impurities from falling into it and clogging the outlet. The top of the material storage tank is open, allowing abrasive to be introduced into it. The water tank, material storage tank, and mixing tank are integrally formed.

[0025] In this embodiment, a roller 7 is also included. The roller 7 is rotatably connected to the outer wall of the mixing tank 2, and the infusion tube 9 is wound around the roller 7. The roller 7 includes a rotating shaft 71 and a retaining wheel 72. One end of the rotating shaft 71 is rotatably connected to the outer wall of the mixing tank 2. There are two retaining wheels 72, which are fixed at both ends of the rotating shaft 71 respectively. The infusion tube 9 is wound around the rotating shaft 71 and confined between the two retaining wheels 72.

[0026] The infusion tube is wound around a drum. By pulling the nozzle end of the infusion tube, the drum is rotated, thereby adjusting the length of the infusion tube. This meets the rust removal needs of steel structures of different sizes. Furthermore, it can be used for high-altitude rust removal operations on completed steel structures, making it more flexible and convenient to use.

[0027] To further optimize the above technical solution and prevent the infusion tube from scattering, tangling, or detaching from the reel, a pressure rod 73 is also included; the stop wheel 72 includes a support rod 721 and an annular wheel 722; one end of the support rod 721 is fixed to the outer wall of the rotating shaft 71, and the other end is fixed to the inner annular surface of the annular wheel 722; the support rods 721 on the two stop wheels 72 are arranged opposite to each other, and the two opposite side walls of the two support rods 721 are provided with sliding grooves; the two ends of the pressure rod 73 are slidably connected in the two sliding grooves and can abut against the outer wall of the infusion tube 9.

[0028] like Figure 3 As shown, a limiting groove is formed between the baffle wheel and the rotating shaft. The pressure rod connects the two baffle wheels and can slide freely along the baffle wheels to ensure that the pressure rod can contact the infusion tube. Due to its movement characteristics, the pressure rod will not restrict the elongation of the infusion tube. There are at least three pressure rods to ensure that the infusion tube is always located in the limiting groove.

[0029] To further optimize the above technical solution, the mixing tank 2 includes a tank body 21, an auger 22, a motor 23, and a synchronous belt 25; there are multiple augers 22 arranged in parallel; the multiple augers 22 are rotatably connected inside the tank body 21; the motor 23 is fixed to the outer wall of the tank body 21 and its output shaft is fixed to the main shaft of one of the augers 22; a synchronous pulley 24 is fixed to one end of the multiple augers 22 away from the motor 23; the synchronous belt 25 connects the multiple synchronous pulleys 24.

[0030] The mixing tank uses an auger to mix water and abrasive. At the same time, the auger can agitate the grinding fluid to prevent abrasive from accumulating on the bottom wall of the tank. By adjusting the speed and direction of the motor, the rotation direction of the auger can be controlled, so that the auger pushes the grinding fluid towards the outlet, ensuring more thorough discharge of the grinding fluid and reducing the load on the high-pressure pump.

[0031] In this embodiment, a paint bucket 6 is also included. The paint bucket 6 is fixed to the top surface of the traveling trolley 1, and a stirrer 61 for stirring the paint inside the paint bucket 6 is fixed to its top wall. A paint inlet hole is opened on the side wall of the paint bucket 6. A delivery pump is fixed to the bottom wall of the paint bucket 6, and a paint pipe 62 is connected to the outlet of the delivery pump. The end of the paint pipe 62 away from the delivery pump can be connected to a liquid delivery pipe 9. Figure 1 As shown, after the steel structure is derusted, anti-corrosion paint can be sprayed onto the surface of the steel structure through paint bucket 6 to perform anti-corrosion treatment on the steel structure, thereby improving the performance and versatility of the derusting device.

[0032] To further optimize the above technical solution, a three-way pipe 10 is also included; a connecting pipe is fixed at the outlet of the high-pressure pump 8; the first hole of the three-way pipe 10 is detachably connected to the connecting pipe, the second hole is connected to the air pipe 51, and the third hole is connected to the infusion pipe 9.

[0033] The tee pipe, connecting pipe, air pipe, and infusion pipe are all connected by threads. After rust removal, the nut between the first hole of the tee pipe and the connecting pipe is removed, and the paint pipe is threaded onto the first hole of the tee pipe. High-pressure air and a delivery pump are used to apply the anti-corrosion coating to the rust-removed steel structure. When rust removal is not required, the paint bucket and air compressor allow this device to perform anti-corrosion construction on steel structures independently.

[0034] To further optimize the above technical solution, a one-way valve is fixed at the end of the infusion pipe 9 furthest from the nozzle. This one-way valve prevents paint or polishing fluid from flowing back into the air pipe and causing air compressor malfunction.

[0035] To further optimize the above technical solution, improve the compactness of the rust removal device, and reduce the structural size of the traveling trolley, it also includes support legs; the number of support legs is multiple and their upper ends are fixed to the bottom wall of the mixing tank 2, and their lower ends are fixed to the top surface of the traveling trolley 1; the air compressor 5 is located below the mixing tank 2 and is surrounded by multiple support legs.

[0036] To further optimize the above technical solution and ensure uniform grinding fluid ratio, a weight sensor is fixed on the discharge gate 41; a water flow regulating valve 31 is fixed on the bottom wall of the water storage tank 3 corresponding to the water outlet. The weight sensor is a resistance strain gauge type, capacitive type, or piezoelectric type weight sensor. The discharge gate 41 is communicatively connected to the weight sensor. The weight sensor converts the weight signal of the grinding material into an electrical signal and controls the opening and closing of the discharge gate 41; the water flow regulating valve 31 uses a ball valve to precisely control the water output in the water storage tank.

[0037] In other specific embodiments, a controller is fixed to the outer wall of the mixing tank, which can be used to set the mixing ratio of the grinding fluid, the speed of the motor, the flow rate of the high-pressure pump, and the pumping pressure.

[0038] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel structure rust removal device for construction sites, characterized in that, include: Walking cart (1) A mixing tank (2) is fixed to the top surface of the traveling flatbed truck (1); The bottom of one side wall of the mixing tank (2) is provided with a liquid outlet (26); A water storage tank (3) is fixed on the top surface of the mixing tank (2), and the bottom wall of the water storage tank (3) is provided with an outlet that communicates with the inner cavity of the mixing tank (2). Storage tank (4), the storage tank (4) contains abrasive, the storage tank (4) is fixed to the top surface of the mixing tank (2) and its bottom end is hinged to a discharge gate (41) to put the abrasive into the mixing tank (2) and mix the abrasive with water to form a grinding liquid; A high-pressure pump (8) is fixed to the outer wall of the mixing tank (2) and its inlet is connected to the liquid outlet (26) to pump the grinding fluid. Infusion tube (9), one end of which is detachably connected to the outlet of the high-pressure pump (8), and the other end is fixed with a high-pressure nozzle for rust removal. An air compressor (5) is fixed on the top surface of the traveling trolley (1) to provide high-pressure air. The air outlet of the air compressor (5) is connected to the infusion pipe (9) through an air pipe (51).

2. The steel structure rust removal device for construction sites according to claim 1, characterized in that, It also includes a reel (7), which is rotatably connected to the outer wall of the mixing tank (2), and the infusion tube (9) is wound around the reel (7).

3. A rust removal device for steel structures at construction sites according to claim 2, characterized in that, The drum (7) includes a rotating shaft (71) and a retaining wheel (72); one end of the rotating shaft (71) is vertically rotatably connected to the outer wall of the mixing tank (2); there are two retaining wheels (72) and they are fixed at both ends of the rotating shaft (71); the infusion tube (9) is wound around the rotating shaft (71) and is confined between the two retaining wheels (72).

4. A steel structure rust removal device for construction sites according to claim 3, characterized in that, It also includes a pressure rod (73); the stop wheel (72) includes a support rod (721) and an annular wheel (722); one end of the support rod (721) is fixed to the outer wall of the rotating shaft (71), and the other end is fixed to the inner annular surface of the annular wheel (722); the support rods (721) on the two stop wheels (72) are arranged opposite to each other and the two side walls of the two support rods (721) are provided with sliding grooves; the two ends of the pressure rod (73) are respectively slidably connected in the two sliding grooves and can abut against the outer wall of the infusion tube (9).

5. A rust removal device for steel structures at construction sites according to claim 1, characterized in that, A one-way valve is fixed at the end of the infusion tube (9) away from the nozzle.

6. A rust removal device for steel structures at construction sites according to claim 1, characterized in that, A weight sensor is fixed on the discharge gate (41); a water volume regulating valve (31) is fixed on the bottom wall of the water storage tank (3) corresponding to the water outlet.

7. A rust removal device for steel structures at construction sites according to claim 1, characterized in that, It also includes a three-way pipe (10); the outlet of the high-pressure pump (8) is fixed with a connecting pipe; the first hole of the three-way pipe (10) is detachably connected to the connecting pipe, the second hole is connected to the air pipe (51), and the third hole is connected to the infusion pipe (9).

8. A rust removal device for steel structures at construction sites according to claim 1, characterized in that, The mixing tank (2) includes a tank body (21), an auger (22), a motor (23), and a timing belt (25); there are multiple augers (22) arranged in parallel; multiple augers (22) are rotatably connected inside the tank body (21); the motor (23) is fixed to the outer wall of the tank body (21) and its output shaft is fixed to the main shaft of one of the augers (22); a timing pulley (24) is fixed to one end of each of the multiple augers (22) away from the motor (23); the timing belt (25) connects the multiple timing pulleys (24).

9. A rust removal device for steel structures at construction sites according to claim 1, characterized in that, It also includes support legs; there are multiple support legs, and their upper ends are fixed to the bottom wall of the mixing tank (2) and their lower ends are fixed to the top surface of the walking cart (1); the air compressor (5) is located below the mixing tank (2) and is surrounded by multiple support legs.

10. A rust removal device for steel structures at construction sites according to any one of claims 1 to 9, characterized in that, It also includes a paint bucket (6), which is fixed on the top surface of the traveling trolley (1) and has a stirrer (61) fixed on its top wall for stirring the paint in the paint bucket (6); a delivery pump is fixed on the bottom wall of the paint bucket (6), and the outlet of the delivery pump is connected to a paint pipe (62), and the end of the paint pipe (62) away from the delivery pump can be connected to the infusion pipe (9).

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