Multi-rail type hull bottom derusting machine
The multi-track ship bottom rust removal machine, through parallel shot blasting channels and a return material system, combined with a dust removal unit, solves the problems of low efficiency and environmental pollution of existing rust removal methods, and achieves a highly efficient and environmentally friendly rust removal effect.
Patent Information
- Application Number
- CN202423251403.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing ship rust removal methods are inefficient and cause environmental pollution. In particular, high-pressure water jet rust removal and shot blasting consume large amounts of water resources or generate dust and iron filings during use, leading to environmental pollution.
The multi-rail hull rust removal machine uses steel shot for efficient rust removal through parallel shot blasting channels and a return material system. Combined with a dust removal unit, it collects and filters dust, reducing environmental pollution.
It improves rust removal efficiency, reduces environmental pollution, lowers rust removal costs, and protects the health of workers.
Smart Images
Figure CN223656790U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of ship surface rust removal equipment, specifically to a multi-rail ship bottom rust removal machine. Background Technology
[0002] Rust removal is particularly important in the ship repair industry. Existing rust removal methods mainly include manual rust removal, chemical rust removal, and mechanical rust removal. However, in ship repair operations, manual or mechanical rust removal is generally used. Manual rust removal is labor-intensive, has low efficiency, and does not completely remove scale and other contaminants. It is mainly used for repairing localized defects and in difficult areas such as confined spaces and the edges and corners of structural steel. Mechanical rust removal is mainly used for large areas such as the outer surface of the ship.
[0003] Mechanical rust removal mainly falls into two categories. The first is high-pressure water jet rust removal, which uses high-pressure water jets to flush and remove rust from the rust-affected area. This process consumes a large amount of natural water, and the flushed water needs to be collected promptly to prevent pollution of the surrounding marine environment. Furthermore, the collected water requires filtration and chemical treatment to restore its original quality, making the process cumbersome and costly. The second is shot blasting, which uses high-speed steel shot to remove rust from the rust-affected area. During this process, the steel shot easily splashes everywhere, and the impact on the ship's outer surface generates a large amount of dust and iron filings, easily polluting the surrounding air. In addition, both high-pressure water jet rust removal and shot blasting are essentially single-track rust removal processes, repeating the process. To maintain the rust removal effect at the edges of the track, each new track overlaps with a portion of the already removed area of an adjacent track during the reciprocating motion. Over time, this wastes time and reduces efficiency, thus requiring improvement and optimization of existing technologies. Utility Model Content
[0004] This utility model proposes a multi-track ship bottom rust removal machine, which solves the problems of low rust removal efficiency and environmental pollution when mechanically removing rust from ship bottoms in related technologies.
[0005] The technical solution of this utility model is as follows:
[0006] A multi-rail hull rust removal machine, comprising:
[0007] The base frame is used to slide under the fixed bottom of the boat;
[0008] Rust removal units are installed on the base frame, and there are several units arranged side by side on the base frame;
[0009] The rust removal unit includes:
[0010] The shot blasting channels are inclinedly arranged on the base frame, and the sides of the outlets of two adjacent shot blasting channels abut against each other.
[0011] As a further technical feature, the rust removal unit includes:
[0012] A shot blasting machine, mounted on the base frame, is used to blast steel shot for rust removal. The feed inlet of the shot blasting channel is connected to the discharge outlet of the shot blasting machine.
[0013] A sand storage hopper, the discharge port of which is connected to the feed port of the shot blasting machine, is used to provide steel shot for blasting;
[0014] A return hopper, mounted on the base frame, is used to receive steel shot ejected from the shot blasting channel.
[0015] As a further technical feature, the rust removal unit also includes:
[0016] The return pipe is inclinedly installed on the base frame. The inlet of the return pipe is connected to the lower outlet of the return hopper, and the outlet of the return pipe is connected to the inlet of the sand storage hopper.
[0017] A return shaft is rotatably mounted inside the return pipe, and a spiral guide plate is provided on the surface of the return shaft;
[0018] A return drive is mounted on the base frame and is used to drive the return shaft to rotate.
[0019] As further technical features, these also include:
[0020] A walking seat, wherein the base frame is slidably disposed vertically relative to the walking seat;
[0021] The wheels are rotatably mounted on the traveling seat and are used to drive the traveling seat to move.
[0022] As a further technical feature, a dust removal unit is also included, the dust removal unit comprising:
[0023] A blower is mounted on the traveling seat and connected to the return hopper via a dust removal duct.
[0024] A cyclone dust collector is mounted on the traveling base and is used to receive the airflow discharged by the fan. The cyclone dust collector has a discharge port and an exhaust port.
[0025] The impurity collection cylinder is installed on the outside of the cyclone dust collector cylinder and is used to collect impurities discharged from the discharge port.
[0026] As a further technical feature, the dust removal unit also includes:
[0027] A filter cartridge is mounted on the traveling base and is connected to the exhaust port of the cyclone dust collector via a second dust removal duct. A dust discharge port is provided at the lower end of the filter cartridge.
[0028] A filter layer, wrapped around the outer layer of the filter cartridge, is used to filter the airflow discharged from the exhaust port.
[0029] As a further technical feature, it also includes: the number of dust removal units is several.
[0030] As further technical features, these also include:
[0031] A shot blasting ring cylinder is installed on the base frame. The return hopper is connected to the shot blasting channel via the shot blasting ring cylinder. The shot blasting ring cylinder is used to cover the rust removal area.
[0032] The baffle is mounted on the shot blasting ring cylinder and either contacts or separates from the outer surface of the ship's bottom.
[0033] As a further technical feature, the number of rust removal units is preferably two.
[0034] As further technical features, these also include:
[0035] A rotating frame is slidably disposed relative to the traveling seat, and the base frame is slidably disposed on the rotating frame;
[0036] The shot blasting ring cylinder includes:
[0037] Two symmetrically distributed cylindrical bodies with notches, with the baffle brush disposed on the cylindrical bodies.
[0038] The working principle and beneficial effects of this utility model are as follows:
[0039] In this utility model, the rust removal machine specifically includes a base frame, a rust removal unit, a traveling seat, and wheels. The rust removal unit includes a shot blasting machine, a sand storage hopper, a shot blasting channel, a return hopper, a return pipe, a return shaft, and a return drive. The shot blasting machine can be any existing shot blasting machine capable of performing shot blasting operations. During operation, the rust removal machine is moved to below the rust removal area on the bottom of the ship, and external force is applied to drive the base upward until the outlet of the shot blasting channel is basically in contact with the bottom of the ship, at which point the rise of the base frame is stopped. An appropriate amount of steel shot is added to the sand storage hopper. The steel shot enters the shot blasting machine through the hopper's outlet. The shot blasting machine is started, and under its action, the steel shot travels along the shot blasting channel at extremely high speed, striking the surface of the ship's bottom. The shot blasting channel is set at an angle to the horizontal plane on the base frame, preferably 45°±15°. The impact force of the steel shot removes rust, seaweed, and other impurities from the ship's bottom surface. Simultaneously, the steel shot is reflected off the ship's bottom and rebounds into the return hopper, where it rolls down into the return pipe. By using several shot blasting channels arranged side by side, parallel shot blasting operations on multiple tracks are achieved, reducing the number of times the rust removal machine reciprocates on the ship's bottom and minimizing the area repeatedly covered during shot blasting, thereby improving work efficiency.
[0040] After the steel shot enters the return pipe, the return drive is activated. The return drive is preferably an electrically driven motor, as is currently available in the technology. The return shaft of the return drive rotates, which can be driven by a conventional sprocket and chain setup, or by a conventional direct meshing of two gears, etc., to achieve the rotation of the return shaft. Then, the return shaft drives the guide plate to rotate synchronously. With the help of the spirally arranged guide plate, the recovered steel shot is transported to the storage hopper for recycling. At the same time, the storage hopper has a replenishment port. As time goes by, the steel shot will inevitably wear down. To prevent the shot blasting machine from blasting empty, an appropriate amount of steel shot can be added through the replenishment port to ensure the continuity of the steel shot blasting operation. Attached Figure Description
[0041] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.
[0042] Figure 1 This is a schematic diagram of the overall structure (with two cylinders) of this utility model from the first angle.
[0043] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;
[0044] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;
[0045] Figure 4This is a schematic diagram of the overall structure (with two cylinders) of this utility model from a second angle.
[0046] In the diagram: 1. Base frame, 2. Shot blasting channel, 3. Shot blasting machine, 4. Sand storage hopper, 5. Return hopper, 6. Return pipe, 7. Return shaft, 8. Guide plate, 9. Return drive, 10. Walking seat, 11. Wheel, 12. Fan, 13. Dust removal duct one, 14. Cyclone dust collector, 15. Waste collection cylinder, 16. Filter cylinder, 17. Dust removal duct two, 18. Dust outlet, 19. Filter layer, 20. Shot blasting ring cylinder, 21. Brush, 22. Rotating frame, 23. Cylinder body, 24. Rubber strip. Detailed Implementation
[0047] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0048] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0049] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0050] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0051] Example 1, refer to Figures 1-2 and Figure 4 This is the first embodiment of the present invention, which proposes a multi-rail ship bottom rust removal machine.
[0052] In this embodiment, the rust removal machine specifically includes a base frame 1, a rust removal unit, a traveling seat 10, and wheels 11. The rust removal unit includes a shot blasting machine 3, a sand storage hopper 4, a shot blasting channel 2, a return hopper 5, a return pipe 6, a return shaft 7, and a return drive 9. The shot blasting machine 3 can be any existing shot blasting machine capable of performing shot blasting operations. During operation, the rust removal machine is moved to below the rust removal area on the bottom of the ship, and external force is applied to drive the base frame 1 upward until the outlet of the shot blasting channel 2 is basically in contact with the bottom of the ship, at which point the rise of the base frame 1 is stopped. An appropriate amount of steel shot is added to the sand storage hopper 4. The steel shot enters the shot blasting machine 3 through the discharge port of the sand storage hopper 4. The shot blasting machine 3 is started, and under the action of the shot blasting machine 3, the steel shot hits the surface of the ship bottom at a very high speed along the shot blasting channel 2. The shot blasting channel 2 is set at an angle to the horizontal plane on the base frame 1, and the angle is preferably 45°±15°. The impact force of the steel shot removes rust, weeds and other impurities from the surface of the ship bottom. At the same time, after being reflected by the ship bottom, the steel shot bounces back into the return hopper 5, and the reflected steel shot rolls down the return pipe 6 along the return hopper 5. By using several shot blasting channels 2 arranged side by side, the parallel shot blasting rust removal operation of multiple tracks can be realized, reducing the number of times the rust removal machine reciprocates on the ship bottom, reducing the area of repeated coverage during shot blasting rust removal, and thus improving work efficiency.
[0053] After the steel shot enters the return pipe 6, the return drive 9 is started. The return drive 9 is preferably an electrically driven motor in the prior art. The return shaft 7 of the return drive 9 rotates, which can be driven by a conventional sprocket and chain, or by the direct meshing of two conventional gears, etc., to realize the rotation of the return shaft 7. Then the return shaft 7 drives the guide plate 8 to rotate synchronously. With the help of the spirally arranged guide plate 8, the recovered steel shot is transported to the storage hopper for recycling. At the same time, the storage hopper has a feeding port. As time goes by, the steel shot will inevitably wear out. In order to prevent the shot blasting machine 3 from blasting empty, an appropriate amount of steel shot can be added through the feeding port to ensure the continuity of the steel shot blasting operation.
[0054] During shot blasting, the wheels 11 can be driven to move on the dock floor by applying external force, which can be the hydraulic drive force provided by the hydraulic workstation. The wheels 11 drive the traveling seat 10 and the base to move synchronously, thus enabling continuous shot blasting operations and improving the efficiency of rust removal.
[0055] Example 2, refer to Figures 1-2 and Figure 4This is the second embodiment of the present invention. Based on the first embodiment, this embodiment further adds a dust removal unit, with several dust removal units, each return hopper 5 connected to at least one dust removal duct 13. The dust removal unit includes a fan 12, a cyclone dust collector 14, a debris collection cylinder 15, a filter cylinder 16, and a filter layer 19. During operation, the fan 12 is started. The fan 12 is selected from existing technologies that can provide suction operation. After the steel shot hits the bottom surface of the ship, under the impact of the steel shot, the steel shot and the removed iron oxides, weeds, and other impurities will enter the return hopper 5 along with the steel shot. Various impurities will be broken into small pieces of debris and dust. Through the suction action of the fan 12, the debris and dust will enter the cyclone dust collector 14 through the dust removal duct 13. The dust collector 14 uses a cyclone dust collector, a technology already in use. With the dust removal effect of the cyclone dust collector 14, debris is discharged through the discharge port and collected in the collection cylinder 15 for further disposal. Dust follows the airflow through the exhaust port into the dust removal duct 17. Through the dust removal duct 17, the airflow and dust enter the filter cylinder 16, where the filter layer 19 intercepts and filters the dust. The airflow then exits through the filter layer 19. This completes the filtration and purification of the airflow, while simultaneously collecting impurities such as iron oxides and aquatic plants, preventing environmental pollution and reducing subsequent environmental purification steps. This reduces environmental pollution and lowers rust removal costs. Furthermore, it helps reduce the risk of lung and respiratory illnesses for on-site rust removal workers, protecting their safety and health.
[0056] Example 3, refer to Figures 1-4This is the third embodiment of the present invention. Based on the first embodiment, this embodiment further refines the number of rust removal units. In this embodiment, the number of rust removal units is preferably two. A shot blasting ring cylinder 20 and a baffle brush 21 are also added, as well as a rotating frame 22. The shot blasting ring cylinder 20 includes two symmetrical cylinders 23 with notches. The edges of the notches of the two cylinders 23 are aligned with each other to form a ring-shaped shot blasting ring cylinder 20. The baffle brush 21 is preferably a steel brush with a certain amount of elastic change. During operation, an external force is applied to drive the wheel 11 to rotate, eventually moving the traveling seat 10 to the bottom of the rust removal area. Then, another external force (such as a hydraulic telescopic cylinder) is applied to drive the rotating frame 22 to slide upwards and gradually approach the bottom surface of the ship. When the baffle 21 just comes into contact with the bottom surface, the upward movement of the rotating frame 22 is stopped. By utilizing the elastic change of the baffle 21, rigid compression between the rust removal machine and the bottom surface of the ship can be avoided, increasing the travel resistance of the wheel 11. At the same time, it can also prevent the traveling seat 10 from leaving obvious scratches on the bottom surface of the ship when it moves. With the help of the two cylinders 23 forming a closed-loop shot blasting ring 20, all the baffles 21 form a closed loop, which can provide a certain shielding and sealing effect for steel shot and impurities, preventing impurities and steel shot from splashing everywhere. The baffles 21 can also be used to scrape the bottom surface of the ship to prevent impurities from being hit by steel shot from remaining on the bottom surface of the ship.
[0057] A rubber strip 24 is provided on each side of the notch of the cylinder 23. When the surface of the bottom of the ship gradually changes its curvature, the base frame 1 can be rotated on the rotating frame 22 by applying external force, so that the cylinder 23 is perpendicular to the rust removal area. At the same time, the rubber strips 24 at the notches of the two cylinders 23 are squeezed and deformed to maintain the overall closed-loop shape of the shot blasting ring cylinder 20, and the adjacent edges of the two shot blasting channels 2 are still in contact, which avoids the splashing and leakage of steel sand and impurities, and improves the applicability of the rust removal machine.
[0058] 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 preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing 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. A multi-rail type ship bottom rust removal machine, characterized in that, include: Base frame (1) for sliding under the fixed bottom of the ship; Rust removal units are installed on the base frame (1), and there are several units arranged side by side on the base frame (1); The rust removal unit includes: The shot blasting channel (2) is inclinedly set on the base frame (1), and the sides of the discharge ports of two adjacent shot blasting channels (2) abut against each other.
2. The multi-rail hull rust removal machine according to claim 1, characterized in that, The rust removal unit includes: A shot blasting machine (3) is installed on the base frame (1) and is used to blast steel shot for rust removal. The feed inlet of the shot blasting channel (2) is connected to the discharge outlet of the shot blasting machine (3). A sand storage hopper (4) has its outlet connected to the feed inlet of the shot blasting machine (3). The sand storage hopper (4) is used to provide steel shot for blasting. The return hopper (5) is set on the base frame (1) and is used to receive the steel shot ejected from the shot blasting channel (2).
3. The multi-rail hull rust removal machine according to claim 2, characterized in that, The rust removal unit also includes: The return pipe (6) is inclinedly installed on the base frame (1). The inlet of the return pipe (6) is connected to the lower outlet of the return hopper (5), and the outlet of the return pipe (6) is connected to the inlet of the sand storage hopper (4). The return shaft (7) is rotatably disposed inside the return pipe (6), and the surface of the return shaft (7) is provided with a spiral guide plate (8). A return drive (9) is mounted on the base frame (1) and is used to drive the return shaft (7) to rotate.
4. A multi-rail hull rust removal machine according to claim 3, characterized in that, Also includes: The base frame (1) is slidably disposed relative to the walking seat (10); The wheel (11) is rotatably mounted on the walking seat (10) and is used to drive the walking seat (10) to move.
5. A multi-rail hull rust removal machine according to claim 4, characterized in that, It also includes a dust removal unit, which comprises: A blower (12) is mounted on the traveling seat (10) and connected to the return hopper (5) via a dust removal duct (13); Cyclone dust collector (14) is mounted on the traveling seat (10) and is used to receive the airflow discharged by the fan (12). The cyclone dust collector (14) has a discharge port and an exhaust port. The impurity collection cylinder (15) is installed on the outside of the cyclone dust collector cylinder (14) to collect the impurities discharged from the discharge port.
6. A multi-rail hull rust removal machine according to claim 5, characterized in that, The dust removal unit also includes: The filter cartridge (16) is mounted on the traveling seat (10) and is connected to the exhaust port of the cyclone dust collector (14) via the dust removal air duct two (17). A dust discharge port (18) is provided at the lower end of the filter cartridge (16). A filter layer (19) is wrapped around the outer layer of the filter cylinder (16) and is used to filter the airflow discharged from the exhaust port.
7. A multi-rail hull rust removal machine according to claim 6, characterized in that, Also includes: The number of dust removal units is several.
8. A multi-rail hull rust removal machine according to claim 4, characterized in that, Also includes: A shot blasting ring (20) is set on the base frame (1). The return hopper (5) is connected to the shot blasting channel (2) through the shot blasting ring (20). The shot blasting ring (20) is used to cover the rust removal area. A baffle (21) is mounted on the shot blasting ring (20) and is in contact with or separate from the outer surface of the ship bottom.
9. A multi-rail hull rust removal machine according to claim 8, characterized in that, The number of rust removal units is two.
10. A multi-rail hull rust removal machine according to claim 9, characterized in that, Also includes: The rotating frame (22) is slidably disposed relative to the walking seat (10), and the base frame (1) is slidably disposed on the rotating frame (22); The shot blasting ring (20) includes: Two symmetrically distributed cylindrical bodies (23) with notches, with the baffle (21) disposed on the cylindrical bodies (23).