Environment-friendly gate in-situ rust removal and corrosion prevention shed

Abstract

The utility model belongs to the technical field of gate anti-corrosion construction equipment, and particularly relates to an environment-friendly gate in-situ rust removal anti-corrosion shed. The anti-corrosion shed comprises three rows of scaffolds, shed cloth, connecting rods, a dust removal fan cover and a dust remover. The first row of scaffolds is arranged in front of the gate, the second row and the third row of scaffolds are arranged behind the gate, the second row is close to the gate, and the third row is far away from the gate; a plurality of connecting rods are arranged at the top ends of the three rows of scaffolds side by side, the shed cloth covers the three rows of scaffolds, and the shed cloth and the scaffolds are supported by the connecting rods; the shed cloth on the first row of scaffolds is connected and closed with the ground; the shed cloth on the third-row scaffold side is a certain distance away from the ground; a plurality of dust suction ports are formed in the shed cloth between the first row of scaffolds and the second row of scaffolds, a dust removal fan cover covers the dust suction ports, and the dust removal fan cover is connected with a dust remover through an air duct. The rust removal and corrosion prevention shed integrates air purification and corrosion prevention construction equipment, and does not occupy the construction operation space.

Description

Technical Field

[0001] This utility model belongs to the technical field of gate anti-corrosion construction equipment, specifically an environmentally friendly gate in-situ rust removal and anti-corrosion shed. Background Technology

[0002] In traditional gate corrosion protection construction, a large number of heavy-duty machines are required to operate within the gate corrosion protection work shed. However, due to limited working space, multiple large machines cannot be used simultaneously, resulting in slow progress. Furthermore, workers must wear respirators and other protective equipment to enter the corrosion protection area, but the presence of numerous machines further restricts their working space and increases the difficulty of the work. Therefore, an environmentally friendly in-situ rust removal and corrosion protection shed for gates should be designed that is securely fixed, simple in structure, easy to construct, and allows for unrestricted operation. Utility Model Content

[0003] The purpose of this utility model is to provide an environmentally friendly in-situ rust removal and anti-corrosion shed for gates. This shed integrates air purification and anti-corrosion construction equipment and does not occupy construction work space.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An environmentally friendly in-situ rust removal and corrosion prevention shed for gates, the corrosion prevention shed includes three rows of scaffolding, shed cloth, connecting rods, dust removal hood and dust collector;

[0006] The three rows of scaffolding are arranged as follows: the first row is set in front of the gate, and the second and third rows are set behind the gate, with the second row closer to the gate and the third row farther away from the gate.

[0007] Several connecting rods are arranged side by side at the top of the three rows of scaffolding. A tarpaulin covers the top of the three rows of scaffolding, and the tarpaulin and scaffolding are supported by connecting rods. The tarpaulin on the side of the first row of scaffolding is closed to the ground. The tarpaulin on the side of the third row of scaffolding is a certain distance from the ground.

[0008] Several dust suction ports are opened on the tarpaulin between the first and second rows of scaffolding. Dust collection hoods are installed over the dust suction ports and connected to dust collectors through air ducts.

[0009] Preferably, the scaffolding is a disc-lock double-row scaffolding or a lifting scaffolding.

[0010] More preferably, the disc-lock double-row scaffolding includes uprights, horizontal bars, diagonal bars, and adjustable bases;

[0011] The upright is fixedly equipped with a connecting disc buckle and a connecting sleeve, and the horizontal bar and / or diagonal bar are fixed between two connecting disc buckles; the upright is vertically fixed on the adjustable base, and the connecting sleeve connects the two uprights for raising the height of the upright.

[0012] Preferably, the canopy on the side of the third row of scaffolding is 10cm above the ground.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] This utility model has strong stability, simple structure, convenient construction, and construction operation is not limited by space. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the anti-corrosion shed;

[0016] Figure 2 This is a floor plan of the anti-corrosion shed;

[0017] Figure 3 This is a schematic diagram of the floor plan of the anti-corrosion shed;

[0018] Figure label:

[0019] 1. Scaffolding; 2. Canopy; 3. Connecting rods; 4. Dust collector hood; 5. Dust collector; 6. Gate; 7. Air duct; 8. Gate pier. Detailed Implementation

[0020] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0021] Example 1

[0022] like Figure 1-3 As shown, an environmentally friendly in-situ rust removal and anti-corrosion shed for gates includes three rows of scaffolding 1, shed cloth 2, connecting rods 3, dust removal hood 4, and dust collector 5;

[0023] The three rows of scaffolding are arranged as follows: the first row is located in front of the gate 5, and the second and third rows are located behind the gate 5. The second row is closer to the gate 6, and the third row is farther away from the gate 6.

[0024] Several connecting rods 3 are arranged side by side at the top of the three rows of scaffolding 1. The tarpaulin 2 covers the top of the three rows of scaffolding 1, and the tarpaulin 2 and the scaffolding 1 are supported by the connecting rods 3. The tarpaulin 2 on the side of the first row of scaffolding is connected to the ground and closed. The tarpaulin on the side of the third row of scaffolding is a certain distance away from the ground.

[0025] Several dust suction ports are opened on the tarpaulin between the first and second rows of scaffolding. Dust collection hoods 4 are covered on the dust suction ports and the dust collection hoods 4 are connected to the dust collector 5 through the air duct 7.

[0026] The scaffolding adopts a disc-lock double-row scaffolding and / or a lifting scaffolding.

[0027] The disc-lock double-row scaffolding includes uprights, horizontal bars, diagonal bars, and adjustable bases;

[0028] The upright is fixedly equipped with a connecting disc buckle and a connecting sleeve, and the horizontal bar and / or diagonal bar are fixed between two connecting disc buckles; the upright is vertically fixed on the adjustable base, and the connecting sleeve connects the two uprights for raising the height of the upright.

[0029] The canopy on the side of the third row of scaffolding is 10cm from the ground.

[0030] This invention employs a dust collector to remove dust and fumes generated during construction from the anti-corrosion shed, thereby purifying the air and protecting the safety of construction workers. Furthermore, additional air ducts can be used to introduce compressed air into the shed.

[0031] In this embodiment, multiple rows of scaffolding are set up before and after the gate 6 and between the gate piers 8. The space inside the scaffolding is sufficient to accommodate various construction machinery, and the construction operation is not limited by space.

[0032] The construction method for in-situ rust removal and corrosion prevention of the environmentally friendly gate in this embodiment includes the following steps:

[0033] 1. Construction of enclosed space for corrosion protection

[0034] 1.1 Scaffolding Erection

[0035] The construction platform involved in this gate corrosion protection project was erected using a combination of disc-lock double-row scaffolding and lifting scaffolding, with some sections secured by steel pipe fasteners to ensure the stability of the scaffolding.

[0036] Based on the on-site working environment and construction requirements, three rows of double-row disc-lock scaffolding were erected on the water-facing side, the backwater side of the gate, and the gate pier. All components used in the scaffolding, including uprights, horizontal bars, diagonal braces, and adjustable bases, were readily available commercial parts, and the scaffolding was erected using conventional methods. The double-row scaffolding is 8 meters high, 12 meters long laterally, and 0.9 meters long longitudinally. The horizontal bar spacing is 1.5 meters, the longitudinal bar spacing is 0.6 meters, and the upright spacing is 2 meters.

[0037] The scaffolding uprights are welded with connecting disc buckles and connecting sleeves. The spacing between the disc buckle nodes is set according to a 0.5m module, and there are six specifications: 0.5m, 1m, 1.5m, 2m, and 2.5m. Horizontal bars of 0.3m, 0.6m, 0.9m, 1.2m, 1.5m, and 2m are used and fixed between the two disc buckles on the uprights. After the horizontal bars are installed, the upper disc buckle pins are tightened. The base is connected to an adjustable screw rod, and a wooden pad or continuous channel steel of at least 15mm thickness is placed underneath. Ordinary steel pipes are used to arrange diagonal bracing according to the requirements of full-span scaffolding construction.

[0038] The safety passage uses a disc-lock system of steel scaffolding boards and ladders. The disc-lock steel scaffolding boards are 50mm high and 250mm wide, and the lengths are 2m, 2.5m, 3m and 4m.

[0039] 1.2 Construction of Anti-corrosion Shed

[0040] The gate corrosion protection construction shed uses high-strength, waterproof, and fireproof canvas as the shed cover, which covers the top of three rows of scaffolding. The upstream shed is fully enclosed, while the downstream shed has pre-drilled holes, 10cm above the ground. The top dust collector hood measures 12m*1m and is fixed to the upper part of the two rows of scaffolding in front of and behind the gate using wire. It is connected to the dust collector outside the corrosion protection shed via air ducts. The sandblasting equipment is placed on both sides of the upstream gate chamber and connected to the inside of the corrosion protection shed via flexible hoses. The bottom of the support frame is connected with sweeping rods to form a whole, providing good stability.

[0041] 2. Gate corrosion protection construction

[0042] 2.1 Sandblasting operation:

[0043] First, load the qualified abrasive into the sand hopper, check the connection performance of the supporting equipment and the accuracy of the pressure gauge, straighten the sandblasting air duct, have the operator put on protective clothing, adjust the sandblasting gun head, and after the preparation is complete, start the machine, open the sandblasting valve, and begin sandblasting.

[0044] The distance between the sandblasting nozzle and the substrate surface should be controlled between 100 and 300 mm, and the sandblasting angle should be 60 to 75°. Avoid 90° perpendicular sandblasting to prevent sand particles from embedding into the substrate. The sandblasting equipment should be placed as close as possible to the workpiece to reduce pipeline length and pressure loss, and avoid excessive pipeline wear. The sandblasting hose should be kept as straight as possible to reduce pressure loss and concentrated wear of the abrasive at bends. For bends that must be made during operation, the wear direction should be frequently changed to ensure more even wear and extend the service life of the hose.

[0045] After sandblasting, the substrate surface is free of grease, oxides, and impurities, exposing a uniform grayish-white surface.

[0046] After sandblasting, use compressed air to blow away surface dust and nearby accumulated sand.

[0047] 2.2 Zinc spraying operation:

[0048] Compressed air used for spraying must pass through an oil-water separator to ensure clean and dry air, and the pressure must not be lower than 0.4 MPa. The spraying distance should be 100–200 mm, and the spray gun should be held at a right angle to the substrate surface, not exceeding 45°. The spray gun should move at a controlled speed, with each coat achieving a thickness of 50–60 μm. The spray gun should be positioned longitudinally and laterally between the first and second coats to create a cross-covering effect. If a zinc coating thickness of 150 μm or more is required, multiple coats can be applied. The spray gun should be moved manually, i.e., "hand moves, gun moves," and should not be arbitrarily swung. The next coat should only be applied after the surface temperature of the coating has dropped below 70°C.

[0049] During spraying, ensure the coating thickness is uniform, free from any defects or overheating. Pay attention to the quality of the compressed air used for spraying, ensuring it is dry, clean, oil-free, and water-free.

[0050] 2.3 Spray painting operation:

[0051] 2.3.1 Coating Mixing

[0052] First, stir the coating in the container at a certain speed to ensure that the coating does not settle and that the composition is uniform. After mixing evenly according to the specified ratio, let it stand for 15-30 minutes, and then filter it through an 80-120 mesh metal mesh or nylon sieve before use.

[0053] 2.3.2 Coating Application

[0054] Add the prepared paint to the hopper of the high-pressure airless sprayer, turn on the switch, and adjust the pressure, spray distance, area, and atomization. After the equipment stabilizes, first spray the longitudinal edges of both sides of the surface to be coated, and then spray horizontally from the upper left corner of the surface according to the spraying path. The center of the first spray path must be aligned with the upper edge of the surface, and subsequent spray paths should overlap by half. Before spraying each path, aim the spray gun at the outside of the side edge of the surface to be coated, and slowly move the spray gun. Pull the trigger just before approaching the side edge (i.e., pull the trigger while the spray gun is moving). The spray gun must move in a straight line, not in an arc, and the nozzle must be perpendicular to the surface. The spray distance should be about 300mm, the coating should overlap evenly, and the coating should be fully interlocked. The speed of the spray gun should be stable and constant, about 10-12m per minute, and the length of each spray should be about 1.5m.

[0055] For any content not described in detail in this utility model, conventional technical knowledge in the field can be used.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An environmentally friendly gate in-situ rust removal and corrosion prevention shed, characterized in that, The anti-corrosion shed comprises three rows of scaffolds, shed cloth, connecting rods, dust removal wind covers and dust collectors. The first row of scaffolds is arranged in front of the gate, and the second and third rows of scaffolds are arranged behind the gate, with the second row being close to the gate and the third row being far away from the gate. The top ends of the three rows of scaffolds are provided with a plurality of connecting rods arranged side by side, and the shed cloth is covered above the three rows of scaffolds and is supported by the connecting rods between the shed cloth and the scaffolds; the shed cloth on the side of the first row of scaffolds is closed with the ground; the shed cloth on the side of the third row of scaffolds is away from the ground by a certain distance. A plurality of dust suction ports are arranged on the shed cloth between the first and second rows of scaffolds, and dust removal wind covers are arranged on the dust suction ports; the dust removal wind covers are connected with the dust collectors through air ducts.

2. The environmentally friendly gate in-situ rust removal and corrosion prevention shed according to claim 1, characterized in that, The scaffold is a disc buckle type double-row scaffold or a lifting type scaffold.

3. The environmentally friendly gate in-situ rust removal and corrosion prevention shed according to claim 2, characterized in that, The disc buckle type double-row scaffold comprises vertical rods, horizontal rods, inclined rods and adjustable bases. The vertical rods are fixedly provided with connecting disc buckles and connecting sleeve pipes, and the horizontal rods and / or the inclined rods are fixed between two connecting disc buckles; the vertical rods are vertically fixed on the adjustable bases, and the connecting sleeve pipes are connected with the two vertical rods for heightening the vertical rods.

4. The environmentally friendly gate in-situ rust removal and corrosion prevention shed according to claim 1, characterized in that, The shed cloth on the side of the third row of scaffolds is away from the ground by 10 cm.

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