A ship sandblasting and rust removing device

Abstract

The present application provides a kind of ship sand blasting derusting equipment, including sand blasting gun, protective cover is installed outside sand blasting gun, the bottom end of protective cover is connected to recovery bin by recovery pipe, screen is arranged in recovery bin, sand grain is filtered impurity after entering recovery bin by recovery pipe, and falls into the cleaning assembly below.Said cleaning assembly includes cleaning cavity and rotating plate inside cleaning cavity, rotating plate is driven by motor and rotates in cleaning cavity, so that sand grain deposited in cavity bottom is stirred and cleaned, the middle part of cleaning cavity is provided with discharge port, sand grain is lifted to discharge port under the stirring action of rotating plate, and enters subsequent air-drying assembly via this place.When air-drying, external air is made to enter recovery bin by fan driving, airflow is guided from air outlet after air duct and is shunted to the surface of filter plate, to form continuous blowing to recovery sand above filter plate, to accelerate the evaporation of water on the surface of sand grain, so that the surface moisture of recovery sand after cleaning is fully dried, and subsequent recovery and reuse are facilitated.

Description

Technical Field

[0001] This invention relates to the field of ship rust removal and cleaning technology, and in particular to a ship sandblasting rust removal device. Background Technology

[0002] Ship sandblasting and rust removal equipment is a type of equipment specifically designed for rust removal on ship surfaces. Its working principle is to remove rust, oxide layers, oil stains, and other substances from the ship's metal surface by high-speed jetting of abrasive particles (such as silica sand, steel sand, etc.), in order to remove surface corrosion, increase roughness for coating adhesion, and improve surface quality.

[0003] Patent publication number CN220922043U discloses a ship painting sandblasting machine, including a base plate, a sandblasting machine body on the top of the base plate, a sand discharge pipe installed at the output port of the sandblasting machine body, a sandblasting gun installed at the end of the sand discharge pipe away from the sandblasting machine body, a protective cover fixedly fitted to the outside of the sandblasting gun, and a sand collection bin connected to the outside of the protective cover; a bracket fixedly connected to the top of the sand storage tank of the sandblasting machine body, a recovery bin fixedly connected to the top of the bracket, a recovery pipe connected between the recovery bin and the sand collection bin, a sand screening trough fixedly connected inside the bracket, a motor fixedly connected inside the recovery bin, and a fan blade fixedly connected to the output end of the motor. By pressing the protective cover against the hull, the rubber ring fits against the hull, which can collect the sand and prevent sand from splashing everywhere and causing injury to the workers; by recovering and screening the sand, the number of times the sand can be filled can be reduced, the work efficiency can be improved, and blockage can be avoided.

[0004] Current ship sandblasting and rust removal equipment recycles and screens used sand particles during operation. Although this reduces the frequency of sand filling, the screening process is limited to removing larger impurity particles. Dust and oil stains on the surface of the sand particles are often not completely removed. These residual impurities reduce the purity and quality of the sand particles, thus affecting their efficiency in subsequent use. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the present invention provides a ship sandblasting and rust removal equipment, including a sandblasting gun, a protective cover installed on the outside of the sandblasting gun, a recovery pipe fixedly connected to the bottom end of the protective cover, the end of the recovery pipe away from the protective cover connected to the recovery chamber, a screen plate installed inside the recovery chamber, and sand particles entering the recovery chamber through the recovery pipe are filtered for impurities by the screen plate and fall into the cleaning component below.

[0006] The cleaning assembly includes a cleaning chamber located inside the recycling bin. A rotating plate is installed inside the cleaning chamber. A second rotating shaft is fixedly installed on the side of the rotating plate in the front-back direction. A second motor is installed at one end of the second rotating shaft to drive the rotating plate to rotate around the shaft. The cleaning chamber is filled with clean water. A discharge port is provided in the middle of the cleaning chamber. The sand particles are lifted to the discharge port by the agitation of the rotating plate and enter the subsequent drying assembly.

[0007] The air drying assembly includes a horizontally arranged filter plate. Sand particles from the outlet of the washing chamber come to the filter plate for dewatering. A liquid storage chamber is provided below the filter plate, and an air outlet is provided above the filter plate. A fan is installed in the air duct above the air outlet, and a material collection port is provided on the side of the filter plate away from the outlet of the washing chamber.

[0008] Optionally, the sieve plate is inclined to discharge the trapped impurities to the outside. The side of the sieve plate away from the recovery pipe is equipped with fan blades to generate a transverse airflow. A vertical filter screen is provided between the fan blades and the sieve plate.

[0009] Optionally, the lower half of the cleaning chamber has an arc-shaped wall to conform to the rotation trajectory of the rotating plate away from the second rotating axis, and the liquid level inside the cleaning chamber is always lower than the lower edge of the discharge port.

[0010] Optionally, the cleaning assembly is provided with two cleaning chambers, including a first cleaning chamber and a second cleaning chamber arranged in a left-right direction. The first cleaning chamber is located directly below the sieve plate, and the outlet of the first cleaning chamber is connected to the second cleaning chamber. The outlet of the second cleaning chamber is connected to the air drying assembly.

[0011] Optionally, the rotating plate is equipped with a cleaning brush rod extending radially along the second rotating axis. The two ends of the cleaning brush rod are movably connected to the side of the rotating plate. A cleaning brush head is fixed on the cleaning brush rod. Multiple cleaning brush rods are arranged at equal intervals in the front-back direction, and the cleaning brush heads of adjacent cleaning brush rods are staggered.

[0012] Optionally, a cylindrical groove is formed on the side of the rotating plate away from the second rotating axis along the extension direction of the cleaning brush rod. A protrusion is installed in the cylindrical groove. The protrusion includes a column and a convex ring located on the outer edge of the end of the column. The convex ring is engaged in the cylindrical groove. The end of the column away from the convex ring is a round head, which extends out of the cylindrical groove and is exposed on the side of the rotating plate. An inner cavity is formed at the end of the column with the convex ring. A limiting block is provided on the side wall of the inner cavity. The end of the cleaning brush rod extends into the cylindrical groove and enters the inner cavity. A spiral groove is formed on the outer wall of the end of the cleaning brush rod. The groove and the limiting block form a spiral engagement. Pressing the protrusion can drive the cleaning brush rod to rotate.

[0013] Optionally, when the rotating plate rotates to the upper limit, the sieve plate abuts against the round head, thereby applying pressure to the protrusion; a spring is provided between the protruding ring and the bottom of the cylindrical groove to provide a restoring force to the protrusion as it moves away from the cleaning brush rod.

[0014] Optionally, a third rotating shaft is fixed on one side of the filter plate and arranged in the front-to-back direction. The rotation of the third rotating shaft can drive the filter plate to tilt toward the collection port, so as to facilitate the recovery of sand particles to slide and be discharged toward the collection port.

[0015] A second gear is fixedly mounted on the third rotating shaft. The second gear is connected to the first gear meshing above it. The driven wheel of the first gear and the second pulley set are coaxially fixed on the fourth rotating shaft. The driving wheel of the second pulley set is coaxially mounted on the second rotating shaft.

[0016] Optionally, the first gear is a sector gear, and the end of the third rotating shaft is rotatably mounted on a mounting base inside the recovery chamber. A torsion spring is provided between the third rotating shaft and the mounting base to provide a restoring force for the filter plate to return to a horizontal state.

[0017] Optionally, a sandblasting assembly is connected below the collection port to recycle and reuse the cleaned and dried sand particles. A sand discharge pipe is connected to the bottom of the sandblasting assembly, and the sandblasting gun is installed at the end of the sand discharge pipe.

[0018] As described above, the present invention provides a ship sandblasting and rust removal device, which has the following beneficial effects:

[0019] 1. This invention, through the configuration of the cleaning components, enables the first rotating shaft to rotate during sandblasting and rust removal of ships. The rotation of the first rotating shaft drives the fan blades to rotate, thereby creating negative pressure inside the recovery chamber. This causes sand particles to be recovered through the recovery pipe into the recovery chamber, where they fall onto the top of the sieve plate under the obstruction of the filter screen. After being filtered by the sieve plate, the large particles of sand enter the cleaning chamber for cleaning. During cleaning, the second rotating shaft is driven by a second motor to rotate. The rotation of the second rotating shaft causes the rotating plate to rotate inside the cleaning chamber, agitating the recovered sand and removing oil, dust, and other soluble impurities from the surface of the sand, thereby improving the purity and quality of the recovered sand and ensuring the sandblasting and rust removal effect on the ship.

[0020] 2. The present invention, through the setting of the air drying component, allows external air to enter the recycling chamber through the fan drive during cleaning, and finally the air is diverted from the air outlet to the surface of the filter plate, which helps to dry the surface moisture of the recycled sand after cleaning the top of the filter plate, making it easier to recycle.

[0021] 3. By setting up a rotating component, when the second rotating shaft rotates, it drives the fourth rotating shaft to rotate through the second belt pulley group. The rotation of the fourth rotating shaft drives the rotation of the first gear, the rotation of the first gear drives the rotation of the second gear, the rotation of the second gear drives the rotation of the third rotating shaft, and the rotation of the third rotating shaft drives the filter plate to rotate, causing the filter plate to rotate downward and tilt, which helps the recovered sand to slide and be discharged to one side of the collection port. Attached Figure Description

[0022] Figure 1 The diagram shows the overall structure of the present invention.

[0023] Figure 2 The diagram shows the structure of the sieve plate inside the recycling bin of the present invention.

[0024] Figure 3 The diagram shown is a structural schematic of the rotating plate of the present invention.

[0025] Figure 4 The diagram shown is a cross-sectional view of the rotating plate of the present invention.

[0026] Figure 5 This invention is shown as Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figures 6 to 7 The diagram shown is a cross-sectional view of the recycling bin of the present invention.

[0028] Figure 8 This invention is shown as Figure 7 Enlarged schematic diagram of the structure at point B.

[0029] Component designation explanation

[0030] 1-Sandblasting assembly; 2-Sand outlet pipe; 3-Sandblasting gun; 4-Protective cover; 5-Recovery pipe; 6-Recovery bin; 7-First motor; 8-First rotating shaft; 9-Fan blade; 10-Filter screen; 11-Sieve plate; 12-Cleaning chamber; 13-Liquid storage chamber; 14-Filter plate; 15-Collection port; 16-Rotating plate; 17-Second rotating shaft; 18-Second motor; 19-First pulley group; 20-Second pulley group; 21-Third rotating shaft; 22-Fourth rotating shaft; 23-First gear; 24-Second gear; 25-Torsion spring; 26-Fan; 27-Air outlet; 28-Protrusion; 29-Protruding ring; 30-Spring; 31-Cleaning brush rod; 32-Slide groove; 33-Limiting block. Detailed Implementation

[0031] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0032] In the detailed description of embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0033] For ease of description, spatial relation terms such as “below,” “under,” “lower than,” “below,” “above,” and “upper” may be used herein to describe the relationship between one element or feature shown in the accompanying drawings and other elements or features. It will be understood that these spatial relation terms are intended to include directions other than those depicted in the drawings for the device in use or operation. Furthermore, when a layer is referred to as being “between” two layers, it can be the only layer between the two layers, or there may be one or more layers in between. The phrase “between” as used herein includes both endpoint values.

[0034] In the context of this application, the structure described above the first feature may include embodiments in which the first and second features are formed in direct contact, or embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact.

[0035] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0036] like Figure 1 As shown, the present invention provides a ship sandblasting and rust removal device, comprising:

[0037] A sandblasting gun 3 is equipped with a protective cover 4. A recovery pipe 5 is fixedly connected to the bottom of the protective cover 4. The end of the recovery pipe 5 away from the protective cover 4 is connected to a recovery chamber 6. A sieve plate 11 is installed inside the recovery chamber 6. Sand particles entering the recovery chamber 6 through the recovery pipe 5 are filtered by the sieve plate 11 and fall into the cleaning assembly below. Preferably, the sieve plate 11 is inclined to discharge trapped impurities to the outside. A fan blade 9 is installed on the side of the sieve plate 11 away from the recovery pipe 5 to generate a transverse airflow. A vertical filter screen 10 is provided between the fan blade 9 and the sieve plate 11. During operation, a first motor 7 drives a first rotating shaft 8 to rotate. The rotation of the first rotating shaft 8 drives the fan blade 9 to rotate, thereby creating a negative pressure inside the recovery chamber 6. This causes sand particles to be recovered into the recovery chamber 6 through the recovery pipe 5, and then fall onto the surface of the sieve plate 11 under the obstruction of the filter screen 10. After being filtered by the sieve plate 11, large particles of impurities in the sand are filtered and then enter the cleaning chamber 12 for internal cleaning.

[0038] The cleaning assembly includes a cleaning chamber 12 located inside the recovery bin 6. A rotating plate 16 is installed inside the cleaning chamber 12. A second rotating shaft 17, arranged in a front-rear direction, is fixedly mounted on the side of the rotating plate 16. A second motor 18 is installed at one end of the second rotating shaft 17 to drive the rotating plate 16 to rotate around the shaft. The cleaning chamber 12 is filled with clean water. The rotating plate 16 rotates inside the cleaning chamber 12, thereby agitating the sand particles to remove oil, dust, and other soluble impurities from the surface of the sand particles, improving the purity and quality of the recovered sand, thus ensuring the sandblasting and rust removal effect on the ship. The lower half of the cleaning chamber 12 has an arc-shaped wall to conform to the rotation trajectory of the rotating plate 16 away from the side of the second rotating shaft 17, ensuring that the rotating plate 16 can push the sand particles during rotation, thus preventing sand particles from accumulating in dead corners. A discharge port 15 is located in the middle of the cleaning chamber 12. The sand particles are lifted to the discharge port 15 by the agitation of the rotating plate 16 and enter the subsequent drying assembly. It should be noted that the liquid level inside the cleaning chamber 12 is always lower than the lower edge of the discharge port 15 to prevent the cleaning liquid from flowing into the drying assembly along with the sand particles, thus ensuring the efficiency and effectiveness of the drying process.

[0039] Furthermore, the cleaning assembly is provided with two cleaning chambers 12, including a first cleaning chamber and a second cleaning chamber arranged in a left-right direction. The first cleaning chamber is located directly below the screen plate 11, and its outlet communicates with the second cleaning chamber. The outlet of the second cleaning chamber is connected to the drying assembly. By using two cleaning chambers 12, the recycled sand is cleaned twice, thereby improving the purity and quality of the sand. The rotating plates 16 within the two cleaning chambers 12 are driven by a first pulley set 19.

[0040] Furthermore, the rotating plate 16 is equipped with cleaning brush rods 31 extending radially along the second rotating shaft 17. The two ends of the cleaning brush rods 31 are movably connected to the sides of the rotating plate 16. Cleaning brush heads are fixed to the cleaning brush rods 31. Multiple cleaning brush rods 31 are arranged equidistantly in the front-to-back direction, with the cleaning brush heads of adjacent cleaning brush rods 31 interlacing. When the rotating plate 16 rotates inside the cleaning chamber 12, it drives the cleaning brush rods 31 to rotate. The cleaning brush heads come into contact with the recycled sand in the water, agitating the recycled sand and further removing tiny particles adhering to the surface of the sand grains, achieving a deeper cleaning and ensuring the purity of the sand, thereby preventing secondary pollution to the hull during reuse.

[0041] A cylindrical groove is formed on the side of the rotating plate 16 away from the second rotating shaft 17 along the extending direction of the cleaning brush rod 31. A protrusion 28 is installed within the cylindrical groove. The protrusion 28 includes a column and a protruding ring 29 located on the outer edge of the column end. The protruding ring 29 engages within the cylindrical groove. The end of the column away from the protruding ring 29 is a rounded head, which extends out of the cylindrical groove and protrudes from the side of the rotating plate 16. An inner cavity is formed at the end of the column with the protruding ring 29, and a limiting block 33 is provided on the side wall of the inner cavity. The end of the cleaning brush rod 31 extends into the cylindrical groove and enters the inner cavity. A spiral groove 32 is formed on the outer wall of the end of the cleaning brush rod 31, and the groove 32 and the limiting block 33 form a spiral engagement. Pressing the protrusion 28 drives the cleaning brush rod 31 to rotate. When the rotating plate 16 rotates to its upper limit, the sieve plate 11 abuts against the rounded head, thereby applying pressure to the protrusion 28. A spring 30 is provided between the convex ring 29 and the bottom of the cylindrical groove to provide a restoring force to the convex block 28 as it moves away from the cleaning brush rod 31.

[0042] The design of the protrusion 28 and spring 30 provides a dual cleaning effect. Specifically, when the rotating plate 16 rotates inside the cleaning chamber 12, it drives the protrusion 28 to rotate. When the protrusion 28 moves to the bottom of the screen plate 11, it contacts the screen plate and slides into the rotating plate 16. The elastic potential energy of the spring 30 causes the protrusion 28 to strike the screen plate 11, preventing it from getting stuck in the inner wall of the through hole and helping the screen plate 11 filter the recycled sand. At the same time, when the protrusion 28 contacts the screen plate 11, it drives the limiting block 33 to slide up and down inside the groove 32 and drives the cleaning brush rod 31 to rotate, which helps the sand between the cleaning brush heads to fall off, ensuring the cleaning effect of the recycled sand.

[0043] Furthermore, the drying assembly includes a horizontally arranged filter plate 14. Sand particles from the outlet of the washing chamber 12 arrive at the filter plate 14 for dehydration. A liquid storage chamber 13 is provided below the filter plate 14, and an air outlet 27 is provided above the filter plate 14. A horizontally arranged air duct is provided above the air outlet 27, and a fan 26 is installed in the air duct. The fan 26 is driven by a built-in motor. During drying, the fan 26 drives external air into the recovery chamber 6, which is then diverted from the air outlet 27 and discharged onto the surface of the filter plate 14. This helps to dry the surface moisture of the recovered sand after cleaning at the top of the filter plate 14, facilitating recovery. A collection port 15 is provided on the side of the filter plate 14 away from the outlet of the washing chamber 12.

[0044] Furthermore, a third rotating shaft 21 is fixed on one side of the filter plate 14 and is arranged in the front-to-back direction. The rotation of the third rotating shaft 21 can drive the filter plate 14 to tilt toward the collection port 15, so as to facilitate the recovery of sand particles to slide and be discharged toward the collection port 15.

[0045] Specifically, a second gear 24 is fixedly mounted on the third rotating shaft 21. The second gear 24 is connected to the first gear 23 meshing above it. The first gear 23 and the driven wheel of the second pulley group 20 are coaxially fixed on the fourth rotating shaft 22. The driving wheel of the second pulley group 20 is coaxially mounted on the second rotating shaft 17.

[0046] When the second rotating shaft 17 rotates, it drives the fourth rotating shaft 22 to rotate through the second belt pulley group 20. The rotation of the fourth rotating shaft 22 drives the rotation of the first gear 23, the rotation of the first gear 23 drives the rotation of the second gear 24, the rotation of the second gear 24 drives the rotation of the third rotating shaft 21, and the rotation of the third rotating shaft 21 drives the filter plate 14 to rotate, causing the filter plate 14 to rotate downward and tilt, which helps the recovered sand at the top to slide and be discharged to one side of the discharge port 15.

[0047] Furthermore, the first gear 23 is a sector gear, and the end of the third rotating shaft 21 is rotatably mounted on a mounting base inside the recovery chamber 6. A torsion spring 25 is provided between the third rotating shaft 21 and the mounting base to provide a restoring force for the filter plate 14 to return to a horizontal state.

[0048] The sector gear has teeth only within a certain angular range in its circumferential direction. When the toothed section of the first gear 23 meshes with the second gear 24, power is transmitted, and the filter plate 14 rotates accordingly. When the first gear 23 rotates to the toothless section, it disengages from the second gear 24, power is interrupted, and the filter plate 14 returns to a horizontal state under the action of the torsion spring 25. This intermittent transmission method allows the filter plate 14 to oscillate back and forth within a specific angular range according to a predetermined cycle. This not only controls the tilt angle of the filter plate 14 but also allows the filter plate 14 to intermittently tilt and discharge sand, improving the drying effect on the surface moisture of the recovered sand.

[0049] Furthermore, the lower part of the collection port is connected to the sandblasting assembly 1 to recycle and reuse the sand particles after cleaning and drying. The bottom end of the sandblasting assembly 1 is connected to the sand outlet pipe 2, and the sandblasting gun 3 is installed at the end of the sand outlet pipe 2 to spray sand particles at high speed onto the surface of the ship to be treated.

[0050] The entire equipment operation process is as follows:

[0051] When the ship is sandblasted to remove rust, the first motor 7 drives the first rotating shaft 8 to rotate. The rotation of the first rotating shaft 8 drives the fan blade 9 to rotate, thereby creating a negative pressure inside the recovery chamber 6. This causes the sand particles to be recovered into the recovery chamber 6 through the recovery pipe 5. Then, under the obstruction of the filter screen 10, they fall onto the screen plate 11. After being filtered by the screen plate 11, the large particles of impurities in the sand enter the cleaning chamber 12 for internal cleaning.

[0052] During cleaning, the second motor 18 drives the second rotating shaft 17 to rotate. The rotation of the second rotating shaft 17 causes the rotating plate 16 to rotate inside the cleaning chamber 12, agitating and recovering the sand. At the same time, the rotating plate 16 drives the protrusion 28 to rotate. When the protrusion 28 swings to below the screen plate 11, it contacts the screen plate 11 and slides into the interior of the rotating plate 16. The elastic potential energy of the spring 30 causes the protrusion 28 to strike the screen plate 11. When the protrusion 28 contacts the screen plate 11 and moves, it synchronously drives the cleaning brush rod 31 to rotate, thereby causing the cleaning brush head to rotate. The sand particles between the cleaning brush heads fall off.

[0053] During cleaning, the sand particles are pushed from the cleaning chamber 12 to the top of the filter plate 14 by the rotating plate 16. The external air is driven by the fan 26 to enter the recovery chamber 6 and finally discharged from the air outlet 27 to the surface of the filter plate 14, drying the surface moisture of the sand particles at the top of the filter plate 14.

[0054] When the second rotating shaft 17 rotates, it drives the fourth rotating shaft 22 to rotate through the second belt pulley group 20. The rotation of the fourth rotating shaft 22 drives the first gear 23 to rotate, the rotation of the first gear 23 drives the second gear 24 to rotate, the rotation of the second gear 24 drives the third rotating shaft 21 to rotate, and the rotation of the third rotating shaft 21 drives the filter plate 14 to rotate, causing the filter plate 14 to rotate downward and tilt, so that the sand particles are discharged into the collection port 15 for recycling.

[0055] In summary, this invention provides a ship sandblasting and rust removal device, including a sandblasting gun with a protective cover installed on its exterior. A recovery pipe is fixedly connected to the bottom of the protective cover, and the end of the recovery pipe away from the protective cover is connected to a recovery chamber. A screen plate is installed inside the recovery chamber. Sand particles entering the recovery chamber through the recovery pipe are filtered for impurities by the screen plate and fall into a cleaning component below. The cleaning component includes a cleaning chamber located inside the recovery chamber. A rotating plate is installed inside the cleaning chamber. The rotating plate is driven by a motor and rotates continuously within the cleaning chamber, thereby powerfully agitating the sand particles deposited at the bottom of the chamber to remove oil, dust, and other soluble impurities adhering to the surface of the sand particles, significantly improving the purity and quality of the recovered sand. A discharge port is provided in the middle of the cleaning chamber. Sand particles are lifted to the discharge port by the agitation of the rotating plate and enter the subsequent drying component through this port. During the air drying process, a fan drives outside air into the recycling chamber. The airflow is guided through the air duct and then diverted from the air outlet to the surface of the filter plate, continuously blowing on the recycled sand above the filter plate. This accelerates the evaporation of moisture from the surface of the sand particles, thus thoroughly drying the surface of the cleaned recycled sand for subsequent recycling and reuse.

[0056] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A ship sandblasting and rust removal device, characterized in that, It includes a sandblasting gun, which is equipped with a protective cover. The bottom of the protective cover is connected to the recovery chamber through a recovery pipe. The recovery chamber is equipped with a screen plate. The sand particles that enter the recovery chamber through the recovery pipe are filtered by the screen plate and fall into the cleaning component below. The cleaning assembly includes a cleaning chamber located inside the recycling bin. A rotating plate is installed inside the cleaning chamber. A second rotating shaft is fixedly installed on the side of the rotating plate in the front-back direction. A second motor is installed at one end of the second rotating shaft to drive the rotating plate to rotate around the shaft. The cleaning chamber is filled with clean water. A discharge port is provided in the middle of the cleaning chamber. The sand particles are lifted to the discharge port by the agitation of the rotating plate and enter the subsequent drying assembly. The air drying assembly includes a horizontally arranged filter plate. Sand particles from the outlet of the washing chamber come to the filter plate for dewatering. A liquid storage chamber is provided below the filter plate, and an air outlet is provided above the filter plate. A fan is installed in the air duct above the air outlet, and a material collection port is provided on the side of the filter plate away from the outlet of the washing chamber.

2. The ship sandblasting and rust removal equipment according to claim 1, characterized in that: The sieve plate is inclined to discharge the trapped impurities to the outside. The side of the sieve plate away from the recovery pipe is equipped with fan blades to generate a horizontal airflow. A vertical filter screen is installed between the fan blades and the sieve plate.

3. The ship sandblasting and rust removal equipment according to claim 1, characterized in that: The lower half of the cleaning chamber has an arc-shaped wall to conform to the rotation trajectory of the rotating plate away from the second rotating axis. The liquid level inside the cleaning chamber is always lower than the lower edge of the discharge port.

4. The ship sandblasting and rust removal equipment according to claim 1, characterized in that: The cleaning assembly is provided with two cleaning chambers, including a first cleaning chamber and a second cleaning chamber arranged in a left-right direction. The first cleaning chamber is located directly below the sieve plate. The outlet of the first cleaning chamber is connected to the second cleaning chamber, and the outlet of the second cleaning chamber is connected to the air drying assembly.

5. The ship sandblasting and rust removal equipment according to claim 1, characterized in that: The rotating plate is equipped with a cleaning brush rod extending radially along the second rotating axis. The two ends of the cleaning brush rod are movably connected to the side of the rotating plate. A cleaning brush head is fixed on the cleaning brush rod. Multiple cleaning brush rods are arranged at equal intervals in the front-back direction, and the cleaning brush heads of adjacent cleaning brush rods are staggered.

6. The ship sandblasting and rust removal equipment according to claim 5, characterized in that: A cylindrical groove is formed on the side of the rotating plate away from the second rotating axis along the extension direction of the cleaning brush rod. A protrusion is installed in the cylindrical groove. The protrusion includes a column and a convex ring located on the outer edge of the end of the column. The convex ring is engaged in the cylindrical groove. The end of the column away from the convex ring is a round head, which extends out of the cylindrical groove and is exposed on the side of the rotating plate. An inner cavity is formed at the end of the column with the convex ring. A limiting block is provided on the side wall of the inner cavity. The end of the cleaning brush rod extends into the cylindrical groove and enters the inner cavity. A spiral groove is formed on the outer wall of the end of the cleaning brush rod. The groove and the limiting block form a spiral engagement. Pressing the protrusion can drive the cleaning brush rod to rotate.

7. The ship sandblasting and rust removal equipment according to claim 6, characterized in that: When the rotating plate rotates to the upper limit, the sieve plate abuts against the round head, thereby applying pressure to the protrusion; a spring is provided between the protruding ring and the bottom of the cylindrical groove to provide the protrusion with a restoring force away from the cleaning brush rod.

8. The ship sandblasting and rust removal equipment according to claim 1, characterized in that: A third rotating shaft is fixed on one side of the filter plate and is arranged in the front-to-back direction. The rotation of the third rotating shaft can drive the filter plate to tilt toward the collection port, so as to facilitate the recovery of sand particles to slide and be discharged toward the collection port. A second gear is fixedly mounted on the third rotating shaft. The second gear is connected to the first gear meshing above it. The driven wheel of the first gear and the second pulley set are coaxially fixed on the fourth rotating shaft. The driving wheel of the second pulley set is coaxially mounted on the second rotating shaft.

9. The ship sandblasting and rust removal equipment according to claim 8, characterized in that: The first gear is a sector gear, and the end of the third rotating shaft is rotatably mounted on a mounting base inside the recovery chamber. A torsion spring is provided between the third rotating shaft and the mounting base to provide a restoring force for the filter plate to return to a horizontal state.

10. The ship sandblasting and rust removal equipment according to claim 1, characterized in that: The material collection port is connected to the sandblasting assembly below to recycle and reuse the cleaned and dried sand particles. The bottom of the sandblasting assembly is connected to the sand discharge pipe, and the sandblasting gun is installed at the end of the sand discharge pipe.

Images