Sewage treatment device for ship

Abstract

The invention discloses a sewage treatment device for ships, and relates to the field of sewage treatment.The sewage treatment device comprises a centrifugal separation barrel, a centrifugal filter barrel is arranged in the centrifugal separation barrel, a top cover is arranged at the top of the centrifugal separation barrel, a plurality of first bolts are in threaded connection between the top cover and the centrifugal separation barrel, and a feeding pipe is fixedly connected to the top of the top cover; a water outlet pipe penetrates through the bottom in the centrifugal separation barrel and is fixedly connected with the centrifugal separation barrel, a stabilizing structure is arranged in the centrifugal separation barrel and comprises two stabilizing semi-rings and a butt joint pipe, and three stabilizing rods are fixedly connected between the outer surfaces of the two stabilizing semi-rings and the inner wall of the centrifugal separation barrel; the two sides of the two stable semi-rings are fixedly connected with lug bases, and two second bolts are connected between the two attached lug bases in a threaded mode. By arranging the stable structure, the axial stability and the detachability of the centrifugal filter barrel during high-speed rotation are achieved, the mechanical reliability in the centrifugal separation process is guaranteed, and follow-up maintenance and cleaning are facilitated.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment, and in particular to a sewage treatment device for ships. Background Art

[0002] Ship sewage treatment refers to the environmentally friendly process of purifying domestic sewage from ships. Its core link is solid-liquid separation, which effectively separates large solid debris from the liquid in the sewage through physical methods such as screens and sedimentation. The separated solid waste is usually disinfected and compressed, then temporarily stored and eventually transferred to shore for treatment; the remaining liquid portion will enter the subsequent biochemical treatment unit, where microorganisms will be used to degrade organic matter or further purified through membrane filtration, chlorine disinfection and other technologies. It will eventually meet strict international maritime emission standards before being discharged, thereby maximizing the protection of the marine ecological environment. Chinese patent publication number "CN107935108A" discloses "a solid-liquid separation device for primary sewage treatment, comprising a bottom hollow shell and a top hollow shell, wherein a plurality of connecting plates are bolted to the bottom of the bottom hollow shell, and a support rod is mounted at the center of the bottom of each connecting plate." Although the above patent utilizes the rotation of sewage to generate vortex phenomenon, the vortex causes the impurities in the sewage to produce centrifugal phenomenon, causing the impurities to move toward the outside, thereby achieving the effect of solid-liquid separation, but the solid material separated by this patent is still in a moist flocculent or fluid state with a high water content, which not only increases the volume and weight of the waste, but also brings difficulties to subsequent storage, transportation and compliant discharge. Summary of the Invention

[0003] The main purpose of the present invention is to provide a sewage treatment device for ships, which can effectively solve the technical problems in the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A sewage treatment device for a ship, comprising a centrifugal separation barrel, wherein a centrifugal filter barrel is provided inside the centrifugal separation barrel, a top cover is provided on the top of the centrifugal separation barrel, a plurality of bolts 1 are threadedly connected between the top cover and the centrifugal separation barrel, a feed pipe is fixedly connected to the top of the top cover, an outlet pipe is fixedly connected to the bottom of the centrifugal separation barrel through the inside, a stabilizing structure is provided inside the centrifugal separation barrel, the stabilizing structure comprises two stabilizing half rings and a butt pipe, three stabilizing rods are fixedly connected between the outer surfaces of the two stabilizing half rings and the inner wall of the centrifugal separation barrel, ear seats are fixedly connected on both sides of the two stabilizing half rings, and two bolts 2 are threadedly connected between the two abutting ear seats; The butt joint is located between the two stable half rings, and a limiting ring is fixedly connected to the inside of the butt joint and between the two stable half rings. The butt joint is fixedly connected to the top of the centrifugal filter barrel. The bottom of the centrifugal filter barrel passes through the bottom of the centrifugal separation barrel and is fixedly connected to a bottom pipe. A plug-in ring is inserted into the bottom of the centrifugal separation barrel. The bottom of the centrifugal separation barrel is connected to the bottom cover by several small bolts. The outer surface of the bottom pipe is sleeved with an anti-drop ring between the centrifugal separation barrel and the bottom cover.

[0005] As a further solution of the present invention, the bottom of the centrifugal filter barrel is conical, and the butt joint is plugged into the bottom of the top cover.

[0006] As a further solution of the present invention, the limiting ring is rotatably connected to the two stabilizing half rings, the anti-drop ring is rotatably connected to the centrifugal separation barrel and the bottom cover as a whole, and the water outlet pipe runs through the bottom of the bottom cover.

[0007] As a further solution of the present invention, a base is provided at the bottom of the centrifugal separation barrel, three fixing rods are fixed between the bottom of the bottom cover and the top of the base, two docking plates are symmetrically fixedly connected to the bottom of the bottom cover, and two docking bolts are threadedly connected between the side surfaces of the docking plates and the side surfaces of the base.

[0008] As a further solution of the present invention, the top of the base is rotatably connected to a pulley, and the outer surface of the bottom tube is also fixedly connected to a pulley near the bottom of the bottom cover, a belt is provided between the two pulleys, the top of the base is fixedly connected to a mounting bracket, the top of the mounting bracket is fixedly connected to motor 1, and the output shaft of motor 1 is fixedly connected to the pulley near the front.

[0009] As a further solution of the present invention, a dehydration structure is provided inside the base, the dehydration structure includes spiral blades, a docking groove is provided through the top at the rear part of the base, a rotating shaft is provided inside the base, both ends of the rotating shaft are fixedly connected to support rings, the rear part of the base is fixedly connected to motor 2, and a discharge trough is provided through the bottom at the front part of the base.

[0010] As a further solution of the present invention, the rotating shaft is rotatably connected to the inside of the base through two supporting rings, the spiral blades are fixed to the outer surface of the rotating shaft, and the output shaft of the second motor is fixedly connected to the supporting ring at the rear.

[0011] As a further solution of the present invention, the bottom tube is plugged into the docking groove, and the width of the discharge groove is greater than the diameter of the spiral blade.

[0012] As a further solution of the present invention, an opening and closing structure is provided at the bottom of the base, and the opening and closing structure includes a baffle, a bottom cylinder is fixedly connected to the bottom of the base and located at the bottom of the discharge trough, and an opening and closing frame is fixedly connected to the bottom of the bottom cylinder, a placement slot is provided inside the opening and closing frame, the baffle is slidably connected to the inside of the placement slot, and through slots are provided on both sides of the opening and closing frame, and two through slots are respectively fixed to sliding rods at the rear part of the two sides of the baffle, and the two sliding rods are rotatably connected to connecting rod 2 at the opposite ends, and fixed blocks are fixed to both sides of the bottom of the base at the rear, and the opposite sides of the two fixed blocks are rotatably connected to a turntable, and the opposite sides of the two turntables are rotatably connected to connecting rod 1, and an inserted shaft is passed through the close ends of connecting rod 1 and connecting rod 2, and a connecting block is fixedly connected to the bottom of the base and located between the two fixed blocks, and the bottom of the connecting block is fixedly connected to a dual-axis motor.

[0013] As a further solution of the present invention, the diameter of the turntable is greater than the length of the through slot, the two output shafts of the dual-axis motor are fixedly connected to the two turntables respectively, the interior of the bottom cylinder passes through the front and is connected to a filter screen near the bottom.

[0014] The beneficial effects of the present invention are as follows: By setting up a stable structure, the centrifugal filter barrel achieves excellent axial stability and radial positioning during high-speed rotation, while retaining its complete detachable characteristics. This design not only significantly improves the mechanical reliability and vibration stability of the equipment during long-term high-intensity operation, effectively preventing eccentric wear and resonance, but also allows the filter barrel to be quickly disassembled and lifted out without special tools during regular maintenance or sudden failures, greatly simplifying the maintenance process and reducing downtime.

[0015] The conical bottom and the plug-in top cover optimize the water flow guidance and internal sealing environment, reduce eddy currents and splashing, and improve separation efficiency. The conical structure facilitates the collection and discharge of solid phase materials to the bottom, while the plug-in top cover ensures coaxiality and sealing while enabling quick opening and closing by one person, greatly improving the accessibility and efficiency of daily inspection, cleaning, and component replacement. By setting up a dehydration structure and spiral conveying blades, the high-humidity solid matter after centrifugal separation is mechanically squeezed and pushed in synergy to achieve systematic secondary dehydration. This structure not only continuously reduces the moisture content of solid waste, increases the solid content of discharged materials, and reduces the subsequent processing load, but also expands the equipment's adaptability to different sludge properties, thereby comprehensively improving the overall effect and treatment consistency of the solid-liquid separation process; By setting up the opening and closing structure, the discharge port can be precisely controlled in a programmed manner to ensure that the dehydrated solids are discharged according to the set rhythm, maintaining the integrity of the block shape and avoiding breakage and secondary contamination. The filter screen inside the bottom drum provides an efficient seepage channel for the free liquid released during the extrusion dehydration process, enabling rapid collection and diversion of the liquid, strictly preventing the risk of re-mixing of the extruded liquid and solid matter, thereby reliably maintaining the terminal dehydration effect of the material and reducing the burden on the subsequent processing units of the discharge; By providing a removable bottom cover and anti-drop ring, the disassembly steps of the centrifugal filter barrel and the bottom rotating assembly are systematically simplified. Only a few connecting parts need to be released to remove the entire set of components. This provides great convenience for thoroughly cleaning dead corners in the barrel, checking wear, and replacing the seals and bearings at the bottom, significantly improving the maintainability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a sewage treatment device for ships according to the present invention; Figure 2 This is a dissected diagram of a centrifugal separation barrel of a sewage treatment device for ships according to the present invention; Figure 3 This is a diagram showing the robust structure of a sewage treatment device for ships according to the present invention; Figure 4 This is a split diagram of two stable half rings of a sewage treatment device for ships according to the present invention; Figure 5 This is a diagram showing the top structure of a base of a sewage treatment device for ships according to the present invention; Figure 6 This is a disassembled diagram of the dehydration structure of a sewage treatment device for ships according to the present invention; Figure 7 This is a diagram showing the opening and closing structure of a sewage treatment device for ships according to the present invention; Figure 8 This is a disassembled diagram of the opening and closing structure of a sewage treatment device for ships according to the present invention; Figure 9 This is a disassembled display diagram of the bottom pipe and anti-drop ring of a sewage treatment device for ships according to the present invention.

[0017] Figure: 1, centrifugal separation barrel; 2, base; 3, centrifugal filter barrel; 4, top cover; 5, bolt 1; 6, feed pipe; 7, outlet pipe; 8, bottom pipe; 9, stabilizing structure; 10, stabilizing half ring; 11, stabilizing rod; 12, docking pipe; 13, anti-drop ring; 14, bottom cover; 15, insert ring; 16, docking plate; 17, docking bolt; 18, limit ring; 19, bolt 2; 20, ear seat; 21, pulley; 22, belt; 23, mounting bracket; 24 , motor 1; 25. dehydration structure; 26. rotating shaft; 27. spiral blade; 28. support ring; 29. ​​motor 2; 30. docking groove; 31. opening and closing structure; 32. bottom cylinder; 33. opening and closing frame; 34. fixed block; 35. turntable; 36. connecting rod 1; 37. connecting rod 2; 38. plug-in shaft; 39. placement groove; 40. baffle; 41. through groove; 42. slide rod; 43. connecting block; 44. dual-axis motor; 45. fixed rod; 46. filter. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1 - Figure 9 As shown, a sewage treatment device for ships includes a centrifugal separation barrel 1, a centrifugal filter barrel 3 is provided inside the centrifugal separation barrel 1, a top cover 4 is provided on the top of the centrifugal separation barrel 1, a plurality of bolts 5 are threadedly connected between the top cover 4 and the centrifugal separation barrel 1, a feed pipe 6 is fixedly connected to the top of the top cover 4, an outlet pipe 7 is fixedly connected to the bottom of the centrifugal separation barrel 1, a stabilizing structure 9 is provided inside the centrifugal separation barrel 1, the stabilizing structure 9 includes two stabilizing half rings 10 and a butt pipe 12, three stabilizing rods 11 are fixedly connected between the outer surfaces of the two stabilizing half rings 10 and the inner wall of the centrifugal separation barrel 1, ear seats 20 are fixedly connected on both sides of the two stabilizing half rings 10, and two bolts 19 are threadedly connected between the two fitting ear seats 20; The butt joint 12 is located between the two stable half rings 10, and a limiting ring 18 is fixedly connected to the inside of the butt joint 12 and between the two stable half rings 10. The butt joint 12 is fixedly connected to the top of the centrifugal filter barrel 3. The bottom of the centrifugal filter barrel 3 passes through the bottom of the centrifugal separation barrel 1 and is fixedly connected to the bottom pipe 8. The bottom of the centrifugal separation barrel 1 is plugged with an insert ring 15. The bottom of the centrifugal separation barrel 1 is connected to the bottom cover 14 through several small bolts. The outer surface of the bottom pipe 8 is sleeved with an anti-drop ring 13 between the centrifugal separation barrel 1 and the bottom cover 14.

[0020] In actual operation, the sewage to be treated passes through the feed pipe 6 and along the connecting pipe 12 into the interior of the centrifugal filter barrel 3, and then the motor 1 24 is started, and the bottom pipe 8 is driven to rotate by the two pulleys 21 and the belt 22, thereby driving the centrifugal filter barrel 3 to rotate, and the sewage is separated into solid and liquid by centrifugal force, and the separated sewage is discharged from the interior of the device through the outlet pipe 7; Since the top cover 4 is connected to the centrifugal separation barrel 1 by a plurality of bolts 5, the top cover 4 can be opened, thereby facilitating the cleaning of the centrifugal separation barrel 1 and the centrifugal filter barrel 3. At the same time, the stabilizing structure 9 can ensure that the centrifugal filter barrel 3 can be both detachable and automatically rotated. The specific working process of the stabilizing structure 9 is as follows: when the centrifugal filter barrel 3 rotates, the bottom tube 8 and the docking tube 12 rotate synchronously. The docking tube 12 rotates inside the two stabilizing half rings 10 through the limiting ring 18, and the bottom tube 8 rotates at the bottom cover 14 and the bottom of the centrifugal separation barrel 1 through the anti-drop ring 13. By supporting and limiting the docking tube 12 and the bottom tube 8, the top and bottom of the centrifugal filter barrel 3 can be supported and limited, thereby ensuring that the centrifugal filter barrel 3 can rotate along the axis. Therefore, while satisfying the premise that the centrifugal filter barrel 3 is detachable and easy to maintain, its rotation stability can also be ensured, thereby ensuring the effect of solid-liquid separation. Unscrew several bolts 5, remove the top cover 4, unscrew four bolts 2 19, and then remove the six stabilizing rods 11, so that the butt joint 12 and the two stabilizing half rings 10 can be separated. Loosen the three small bolts to separate the bottom cover 14 from the centrifugal separation barrel 1, and then remove the anti-drop ring 13 downwards, so that the top and bottom restrictions of the centrifugal filter barrel 3 can be released, so that the centrifugal filter barrel 3, the butt joint 12, and the bottom tube 8 can be directly taken out.

[0021] In this embodiment, the bottom of the centrifugal filter barrel 3 is conical, and the butt joint 12 is plugged into the bottom of the top cover 4 .

[0022] In this embodiment, the limiting ring 18 is rotatably connected to the two stabilizing half rings 10 , the anti-drop ring 13 is rotatably connected to the centrifugal separation barrel 1 and the bottom cover 14 as a whole, and the water outlet pipe 7 passes through the bottom of the bottom cover 14 .

[0023] In this embodiment, a base 2 is provided at the bottom of the centrifugal separation barrel 1, three fixing rods 45 are fixedly connected between the bottom of the bottom cover 14 and the top of the base 2, two docking plates 16 are symmetrically fixedly connected to the bottom of the bottom cover 14, and two docking bolts 17 are threadedly connected between the side surfaces of the docking plates 16 and the side surfaces of the base 2.

[0024] In this embodiment, the top of the base 2 is rotatably connected to a pulley 21, and the outer surface of the bottom tube 8 is also fixedly connected to the bottom of the bottom cover 14 with a pulley 21, a belt 22 is provided between the two pulleys 21, and the top of the base 2 is fixedly connected to a mounting bracket 23, and the top of the mounting bracket 23 is fixedly connected to a motor 24, and the output shaft of the motor 24 is fixedly connected to the pulley 21 near the front.

[0025] In this embodiment, a dehydration structure 25 is provided inside the base 2, and the dehydration structure 25 includes a spiral blade 27. A docking groove 30 is provided through the top of the rear portion of the base 2. A rotating shaft 26 is provided inside the base 2, and support rings 28 are fixedly connected to both ends of the rotating shaft 26. A motor 29 is fixedly connected to the rear portion of the base 2. A discharge chute is provided through the bottom of the front portion of the base 2. After the solid-liquid separation of the sewage, the solid matter will enter the interior of the base 2 through the bottom pipe 8, and then the second motor 29 is started to drive the rotating shaft 26 to rotate, thereby driving the spiral blade 27. The spiral blade 27 drives the solid matter entering the interior of the base 2 forward, so that the solid matter can be discharged from the interior of the device through the discharge chute; When the discharge chute is closed, the solid matter cannot be discharged when it advances to the front of the base 2, thereby squeezing and dehydrating the solid matter, thereby further reducing the moisture content of the solid matter, thereby further enhancing the effect of solid-liquid separation.

[0026] In this embodiment, the rotating shaft 26 is rotatably connected to the inside of the base 2 through two supporting rings 28, the spiral blade 27 is fixed to the outer surface of the rotating shaft 26, and the output shaft of the motor 2 29 is fixedly connected to the supporting ring 28 at the rear.

[0027] In this embodiment, the bottom tube 8 is plugged into the docking groove 30 , and the width of the discharge groove is greater than the diameter of the spiral blade 27 .

[0028] In this embodiment, an opening and closing structure 31 is provided at the bottom of the base 2, and the opening and closing structure 31 includes a baffle 40. The bottom of the base 2 is fixedly connected to a bottom cylinder 32 at the bottom of the discharge chute, and an opening and closing frame 33 is fixedly connected to the bottom of the bottom cylinder 32. A placement groove 39 is provided inside the opening and closing frame 33, and the baffle 40 is slidably connected to the inside of the placement groove 39. The inside of the opening and closing frame 33 is provided with through grooves 41 on both sides, and two through grooves 41 are respectively provided on the rear part of the two sides of the baffle 40, and both slide rods 42 are fixedly connected. The two slide rods The two ends of the base 2 are rotatably connected to the two connecting rods 37, and the two fixed blocks 34 are fixed on both sides of the rear portion of the bottom of the base 2. The two fixed blocks 34 are rotatably connected to the rotating disks 35 on the sides away from each other. The two rotating disks 35 are rotatably connected to the connecting rod 1 36 on the sides away from each other. An insertion shaft 38 is connected between the connecting rod 1 36 and the close ends of the connecting rod 2 37. A connecting block 43 is fixedly connected to the bottom of the base 2 and located between the two fixed blocks 34. The bottom of the connecting block 43 is fixedly connected to a dual-axis motor 44. When the solids pass through the spiral blades 27, they can enter the bottom barrel 32 through the discharge chute. Before entering the bottom barrel 32, the opening and closing structure 31 is activated, so that the solids can be squeezed and dehydrated inside the bottom barrel 32. The squeezed solids are in the shape of a cuboid, making them easier to discharge. The operating steps of the opening and closing structure 31 are as follows: the baffle 40 is located at the front of the placement slot 39 in the initial state, thereby closing the bottom of the bottom cylinder 32. When the solid matter is squeezed and dehydrated, the dual-axis motor 44 is started to drive the two turntables 35 to rotate synchronously, thereby driving the two connecting rods 1 36 and the two connecting rods 2 37 to rotate and move, thereby driving the two through slots 41 to slide toward the rear, thereby driving the baffle 40 to slide toward the rear along the placement slot 39, thereby opening the bottom of the bottom cylinder 32, so that the solid matter after dehydration can be discharged.

[0029] In this embodiment, the diameter of the turntable 35 is greater than the length of the through slot 41, and the two output shafts of the dual-axis motor 44 are fixedly connected to the two turntables 35 respectively. The interior of the bottom cylinder 32 passes through the front and is connected to a filter screen 46 near the bottom. The sewage squeezed out from the bottom cylinder 32 can be discharged from the inside of the device through the filter screen 46, thereby preventing the squeezed water from mixing with the squeezed solid matter during discharge, thereby preventing the squeezed water from mixing with the squeezed solid matter again.

[0030] It should be noted that the present invention is a sewage treatment device for ships. When in use, the sewage to be treated passes through the feed pipe 6 and along the docking pipe 12 into the interior of the centrifugal filter barrel 3. Then, the motor 1 24 is started and the bottom pipe 8 is driven to rotate by the two pulleys 21 and the belt 22, thereby driving the centrifugal filter barrel 3 to rotate. The sewage is separated into solid and liquid by centrifugal force, and the separated sewage is discharged from the interior of the device through the outlet pipe 7. Since the top cover 4 is connected to the centrifugal separation barrel 1 by a plurality of bolts 5, the top cover 4 can be opened, thereby facilitating the cleaning of the centrifugal separation barrel 1 and the centrifugal filter barrel 3. At the same time, the stabilizing structure 9 can ensure that the centrifugal filter barrel 3 can be both detachable and automatically rotated. The specific working process of the stabilizing structure 9 is as follows: when the centrifugal filter barrel 3 rotates, the bottom tube 8 and the docking tube 12 rotate synchronously. The docking tube 12 rotates inside the two stabilizing half rings 10 through the limiting ring 18, and the bottom tube 8 rotates at the bottom cover 14 and the bottom of the centrifugal separation barrel 1 through the anti-drop ring 13. By supporting and limiting the docking tube 12 and the bottom tube 8, the top and bottom of the centrifugal filter barrel 3 can be supported and limited, thereby ensuring that the centrifugal filter barrel 3 can rotate along the axis. Therefore, while satisfying the premise that the centrifugal filter barrel 3 is detachable and easy to maintain, its rotation stability can also be ensured, thereby ensuring the effect of solid-liquid separation. Unscrew several bolts 5, remove the top cover 4, then unscrew four bolts 2 19, and then remove the six stabilizing rods 11, and then separate the butt joint 12 from the two stabilizing half rings 10. Loosen the three small bolts to separate the bottom cover 14 from the centrifugal separation barrel 1, and then remove the anti-drop ring 13 downwards, so that the top and bottom restrictions of the centrifugal filter barrel 3 can be released, so that the centrifugal filter barrel 3, butt joint 12, and bottom pipe 8 can be directly removed; After the solid-liquid separation of the sewage, the solid matter will enter the interior of the base 2 through the bottom pipe 8, and then the second motor 29 is started to drive the rotating shaft 26 to rotate, thereby driving the spiral blade 27. The spiral blade 27 drives the solid matter entering the interior of the base 2 forward, so that the solid matter can be discharged from the interior of the device through the discharge chute; When the discharge chute is closed, the solid matter cannot be discharged when it advances to the front of the base 2, thereby squeezing and dehydrating the solid matter, thereby further reducing the moisture content of the solid matter, thereby further enhancing the effect of solid-liquid separation; When the solids pass through the spiral blades 27, they can enter the bottom barrel 32 through the discharge chute. Before entering the bottom barrel 32, the opening and closing structure 31 is activated, so that the solids can be squeezed and dehydrated inside the bottom barrel 32. The squeezed solids are in the shape of a cuboid, making them easier to discharge. The operating steps of the opening and closing structure 31 are as follows: the baffle 40 is located at the front of the placement slot 39 in the initial state, thereby closing the bottom of the bottom cylinder 32. When the solid matter is squeezed and dehydrated, the dual-axis motor 44 is started to drive the two turntables 35 to rotate synchronously, thereby driving the two connecting rods 1 36 and the two connecting rods 2 37 to rotate and move, thereby driving the two through slots 41 to slide toward the rear, thereby driving the baffle 40 to slide toward the rear along the placement slot 39, thereby opening the bottom of the bottom cylinder 32, so that the solid matter after dehydration can be discharged.

[0031] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A sewage treatment device for a ship, comprising a centrifugal separation barrel (1), wherein a centrifugal filter barrel (3) is provided inside the centrifugal separation barrel (1), a top cover (4) is provided on the top of the centrifugal separation barrel (1), and a plurality of bolts (5) are threadedly connected between the top cover (4) and the centrifugal separation barrel (1), characterized in that: The top of the top cover (4) is fixedly connected to a feed pipe (6), the inside of the centrifugal separation barrel (1) is fixedly connected to a water outlet pipe (7) passing through the bottom, and a stabilizing structure (9) is provided inside the centrifugal separation barrel (1), the stabilizing structure (9) includes two stabilizing half rings (10) and a butt pipe (12), three stabilizing rods (11) are fixedly connected between the outer surfaces of the two stabilizing half rings (10) and the inner wall of the centrifugal separation barrel (1), and both sides of the two stabilizing half rings (10) are fixedly connected to ear seats (20), and two bolts (19) are threadedly connected between the two ear seats (20) that fit together; The butt-joint pipe (12) is located between the two stable half-rings (10), and a limiting ring (18) is fixedly connected to the interior of the butt-joint pipe (12) and located between the two stable half-rings (10). The butt-joint pipe (12) is fixedly connected to the top of the centrifugal filter barrel (3). The bottom of the centrifugal filter barrel (3) passes through the bottom of the centrifugal separation barrel (1) and is fixedly connected to a bottom pipe (8). The bottom of the centrifugal separation barrel (1) is plugged with an insert ring (15). The bottom of the centrifugal separation barrel (1) is connected to a bottom cover (14) through a plurality of small bolts. The outer surface of the bottom pipe (8) is sleeved and connected to an anti-drop ring (13) located between the centrifugal separation barrel (1) and the bottom cover (14).

2. A sewage treatment device for ships according to claim 1, characterized in that: The bottom of the centrifugal filter barrel (3) is conical, and the butt joint (12) is plugged into the bottom of the top cover (4).

3. A sewage treatment device for ships according to claim 1, characterized in that: The limiting ring (18) is rotatably connected to the two stabilizing half rings (10), the anti-drop ring (13) is rotatably connected to the centrifugal separation barrel (1) and the bottom cover (14), and the water outlet pipe (7) passes through the bottom of the bottom cover (14).

4. A sewage treatment device for ships according to claim 1, characterized in that: The bottom of the centrifugal separation barrel (1) is provided with a base (2), three fixing rods (45) are fixedly connected between the bottom of the bottom cover (14) and the top of the base (2), two docking plates (16) are symmetrically fixedly connected to the bottom of the bottom cover (14), and two docking bolts (17) are threadedly connected between the side surfaces of the docking plates (16) and the side surfaces of the base (2).

5. A sewage treatment device for ships according to claim 4, characterized in that: The top of the base (2) is rotatably connected to a pulley (21), and the outer surface of the bottom tube (8) is also fixedly connected to a pulley (21) near the bottom of the bottom cover (14). A belt (22) is provided between the two pulleys (21). The top of the base (2) is fixedly connected to a mounting frame (23), and the top of the mounting frame (23) is fixedly connected to a motor 1 (24). The output shaft of the motor 1 (24) is fixedly connected to the pulley (21) near the front.

6. A sewage treatment device for ships according to claim 4, characterized in that: A dehydration structure (25) is provided inside the base (2), and the dehydration structure (25) includes a spiral blade (27). A docking groove (30) is provided through the top of the base (2) at the rear, and a rotating shaft (26) is provided inside the base (2). Both ends of the rotating shaft (26) are fixedly connected to support rings (28). A second motor (29) is fixedly connected to the rear of the base (2). A discharge trough is provided through the bottom of the base (2) at the front.

7. A sewage treatment device for ships according to claim 6, characterized in that: The rotating shaft (26) is rotatably connected to the inside of the base (2) through two supporting rings (28), the spiral blade (27) is fixed to the outer surface of the rotating shaft (26), and the output shaft of the second motor (29) is fixedly connected to the supporting ring (28) at the rear.

8. A sewage treatment device for ships according to claim 6, characterized in that: The bottom tube (8) is plugged into the docking groove (30), and the width of the discharge groove is greater than the diameter of the spiral blade (27).

9. A sewage treatment device for ships according to claim 6, characterized in that: The bottom of the base (2) is provided with an opening and closing structure (31), which includes a baffle (40). A bottom cylinder (32) is fixedly connected to the bottom of the base (2) and located at the bottom of the discharge trough. An opening and closing frame (33) is fixedly connected to the bottom of the bottom cylinder (32). A placement groove (39) is provided inside the opening and closing frame (33). The baffle (40) is slidably connected to the inside of the placement groove (39). Through grooves (41) are provided on both sides of the opening and closing frame (33). Two through grooves (41) are respectively provided at the rear of both sides of the baffle (40). Both slide bars (42) are fixedly connected. The two slide bars ( The two ends of the base (42) are rotatably connected to the connecting rod 2 (37), the bottom of the base (2) is fixed with fixed blocks (34) on both sides of the rear portion, the two fixed blocks (34) are rotatably connected to the turntable (35), the two turntables (35) are rotatably connected to the connecting rod 1 (36), the connecting rod 1 (36) and the connecting rod 2 (37) are connected between their respective ends, and a connecting block (43) is fixedly connected to the bottom of the base (2) and between the two fixed blocks (34), and the bottom of the connecting block (43) is fixedly connected to a dual-axis motor (44).

10. A sewage treatment device for ships according to claim 9, characterized in that: The diameter of the turntable (35) is greater than the length of the through slot (41), and the two output shafts of the dual-axis motor (44) are fixedly connected to the two turntables (35) respectively. The interior of the bottom cylinder (32) passes through the front part and is connected to a filter (46) near the bottom.

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