A shipboard sewage treatment device

Abstract

The application discloses a sewage treatment device for a ship and relates to the field of sewage treatment.The sewage treatment device comprises a centrifugal separation bucket, the inside of the centrifugal separation bucket is provided with a centrifugal filter bucket, the top of the centrifugal separation bucket is provided with a top cover, a plurality of bolts one are threadedly connected between the top cover and the centrifugal separation bucket, the top of the top cover is fixedly connected with a feeding pipe, a water outlet pipe is fixedly connected through the bottom of the inside of the centrifugal separation bucket, the inside of the centrifugal separation bucket is provided with a stable structure, the stable structure comprises two stable half-rings and a butt joint pipe, three stable rods are fixedly connected between the outer surfaces of the two stable half-rings and the inner wall of the centrifugal separation bucket, an ear seat is fixedly connected to the left side and the right side of each stable half-ring, and two bolts two are threadedly connected between the two abutting ear seats. The stable structure is arranged, the axial stability and the detachability of the centrifugal filter bucket during high-speed rotation are realized, the mechanical reliability of the centrifugal separation process is ensured, and subsequent maintenance and cleaning are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sewage treatment, in particular to a sewage treatment device for ships. BACKGROUND

[0002] Ship sewage treatment refers to the environmental protection process of purifying ship domestic sewage. The core link is first solid-liquid separation, that is, through physical methods such as grating and sedimentation, the large solid impurities in the sewage are effectively separated from the liquid. The separated solid waste is usually sterilized and compressed for temporary storage, and finally handed over to the shore for treatment; and the remaining liquid part will enter the subsequent biochemical treatment unit, using microorganisms to degrade organic matter or using membrane filtration, chlorine disinfection and other technologies for further purification, so that it can be discharged after meeting the strict international maritime emission standards, thereby maximizing the protection of the marine ecological environment.

[0003] The Chinese patent with publication number "CN107935108A" discloses "a solid-liquid separation device for primary sewage treatment, comprising a bottom hollow shell and a top hollow shell, a plurality of connecting plates are installed at the bottom of the bottom hollow shell through bolts, and a support rod is installed at the center of the bottom of each connecting plate";

[0004] Although the above-mentioned patent utilizes sewage rotation to generate vortex phenomenon, the vortex makes the impurities in the sewage produce centrifugal phenomenon, so that the impurities move towards the outside, thereby realizing the effect of solid-liquid separation. However, the solid materials separated by the patent are still in a wet flocculent or flow 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

[0005] The main purpose of the present application is to provide a sewage treatment device for ships, which can effectively solve the technical problems in the background art.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] A sewage treatment device for ships, comprising a centrifugal separation drum, a centrifugal filter drum is arranged inside the centrifugal separation drum, a top cover is arranged at the top of the centrifugal separation drum, a plurality of bolts one are threadedly connected between the top cover and the centrifugal separation drum, a feed pipe is fixedly connected to the top of the top cover, a water outlet pipe is fixedly connected to the bottom of the centrifugal separation drum, a stable structure is arranged inside the centrifugal separation drum, the stable structure comprises two stable half-rings and a butt joint pipe, three stable rods are fixedly connected between the outer surfaces of the two stable half-rings and the inner wall of the centrifugal separation drum, an ear seat is fixedly connected to each side of each stable half-ring, and two bolts two are threadedly connected between the two abutting ear seats.

[0008] The docking pipe is located between the two stable half rings, the limit ring is fixedly connected inside the docking pipe and between the two stable half rings, the docking pipe is fixedly connected with the top of the centrifugal filter barrel, the bottom of the centrifugal filter barrel penetrates the bottom of the centrifugal separation barrel and is fixedly connected with the bottom pipe, the bottom of the centrifugal separation barrel is inserted with the insertion ring, the bottom of the centrifugal separation barrel is connected with the bottom cover through a plurality of small bolts, and the outer surface of the bottom pipe and between the centrifugal separation barrel and the bottom cover is sleeved with the anti-falling ring.

[0009] As a further scheme of the application, the bottom of the centrifugal filter barrel is conical, and the docking pipe is inserted with the bottom of the top cover.

[0010] As a further scheme of the application, the limit ring is rotatably connected with the two stable half rings, the anti-falling ring is rotatably connected with the whole centrifugal separation barrel and the bottom cover, and the water outlet pipe penetrates the bottom of the bottom cover.

[0011] As a further scheme of the application, the bottom of the centrifugal separation barrel is provided with a base, three fixed rods are fixedly connected between the bottom of the bottom cover and the top of the base, two docking plates are fixedly connected symmetrically on the bottom of the bottom cover, and two docking bolts are threadedly connected between the side surface of the docking plate and the side surface of the base.

[0012] As a further scheme of the application, the top of the base is rotatably connected with a pulley, the outer surface of the bottom pipe is also fixedly connected with a pulley near the bottom of the bottom cover, a belt is sleeved between the two pulleys, the top of the base is fixedly connected with a mounting frame, the top of the mounting frame is fixedly connected with a motor one, and the output shaft of the motor one is fixedly connected with the pulley near the front part.

[0013] As a further scheme of the application, the inside of the base is provided with a dehydration structure, the dehydration structure comprises a spiral blade, an interface groove is formed through the top near the rear part in the inside of the base, a rotating shaft is arranged in the inside of the base, the two ends of the rotating shaft are fixedly connected with supporting rings, a motor two is fixedly connected to the rear part of the base, and a discharging groove is formed through the bottom near the front part in the inside of the base.

[0014] As a further scheme of the application, the rotating shaft is rotatably connected in the inside of the base through the two supporting rings, the spiral blade is fixedly connected to the outer surface of the rotating shaft, and the output shaft of the motor two is fixedly connected with the supporting ring near the rear part.

[0015] As a further scheme of the application, the bottom pipe is inserted with the interface groove, and the width of the discharging groove is greater than the diameter of the spiral blade.

[0016] As a further scheme of the present application, the bottom of the base is provided with an opening and closing structure, the opening and closing structure comprises a baffle, the bottom of the base is fixedly connected with a bottom cylinder at the bottom of the discharge slot, the bottom of the bottom cylinder is fixedly connected with an opening and closing frame, the inside of the opening and closing frame is provided with a placing slot, the baffle is slidingly connected to the inside of the placing slot, the inside of the opening and closing frame is provided with a through slot on both sides, the two sides of the rear part of the baffle are fixedly connected with a sliding rod penetrating through the two through slots respectively, the distal ends of the two sliding rods are rotatably connected with a connecting rod two, the bottom of the base is fixedly connected with a fixed block on both sides of the rear part, the distal sides of the two fixed blocks are rotatably connected with a rotating disc, the distal sides of the two rotating discs are rotatably connected with a connecting rod one, the proximal ends of the connecting rod one and the connecting rod two are connected with a plug shaft penetrating through, and the bottom of the base is fixedly connected with a connecting block between the two fixed blocks, and the bottom of the connecting block is fixedly connected with a double-shaft motor.

[0017] As a further scheme of the present application, the diameter of the rotating disc is greater than the length of the through slot, the two output shafts of the double-shaft motor are fixedly connected with the two rotating discs respectively, and the inside of the bottom cylinder is connected with a filter screen penetrating through the front part and the bottom part.

[0018] The beneficial effects of the present application are as follows:

[0019] By setting the stable structure, excellent axial stability and radial positioning of the centrifugal filter barrel during high-speed rotation are achieved, while the complete detachable feature is retained. 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 enables the filter barrel to be quickly disassembled and lifted out without the need for special tools during regular maintenance or sudden failures, greatly simplifying the maintenance process and reducing downtime.

[0020] By setting the conical bottom and the butt-joint plug-in top cover, the guiding property and internal sealing environment of the water inlet flow are optimized, reducing vortex and splashing and improving separation efficiency. The conical structure facilitates the collection and discharge of solid-phase materials to the bottom, and the plug-in top cover ensures coaxiality and sealing effect while enabling one person to operate the quick opening and closing, greatly improving the accessibility and operation efficiency of daily inspection, cleaning and component replacement.

[0021] By setting the dewatering structure and spiral conveying blades, mechanical extrusion and pushing synergy are implemented on high-moisture solid-state materials after centrifugal separation, achieving systematic secondary dewatering. This structure not only continuously reduces the moisture content of solid waste, improves the solid content of discharged materials, and reduces the subsequent processing load, but also expands the adaptability of the equipment to different sludge properties, thereby comprehensively improving the overall effect and processing consistency of the solid-liquid separation process.

[0022] By setting the opening and closing structure, precise programmed control of the discharge port is achieved, ensuring that the formed solid after dewatering is discharged at the set rhythm, maintaining the integrity of the blocky form and avoiding fragmentation and secondary pollution.

[0023] By setting the filter screen in the bottom cylinder, a high-efficiency seepage channel is provided for the free liquid released in the extrusion dehydration process, realizing rapid collection and diversion of the liquid, strictly preventing the risk of mixing of the extrusion liquid and solid matter again, thereby reliably maintaining the terminal dehydration effect of the material and reducing the burden of the subsequent treatment unit after discharging.

[0024] By setting the detachable bottom cover and the anti-falling ring, the disassembly steps of the centrifugal filter barrel and the bottom rotating assembly are systematically simplified, the entire assembly can be taken out downward by only releasing a few connecting pieces, great convenience is provided for completely cleaning the dead angle in the barrel, checking the wear condition, and replacing the bottom seal and bearing, and the maintainability and service life of the equipment are significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure schematic diagram of the sewage treatment device for a ship according to the present application;

[0026] Figure 2 It is a centrifugal separation barrel disassembly and splitting diagram of the sewage treatment device for a ship according to the present application;

[0027] Figure 3 It is a stable structure disassembly and splitting diagram of the sewage treatment device for a ship according to the present application;

[0028] Figure 4 It is a disassembly and splitting diagram of two stable half rings of the sewage treatment device for a ship according to the present application;

[0029] Figure 5 It is a top structure display diagram of the base of the sewage treatment device for a ship according to the present application;

[0030] Figure 6 It is a dehydration structure disassembly and splitting diagram of the sewage treatment device for a ship according to the present application;

[0031] Figure 7 It is an opening and closing structure display diagram of the sewage treatment device for a ship according to the present application;

[0032] Figure 8 It is an opening and closing structure disassembly and splitting diagram of the sewage treatment device for a ship according to the present application;

[0033] Figure 9 It is a disassembly and splitting display diagram of the bottom pipe and the anti-falling ring of the sewage treatment device for a ship according to the present application.

[0034] In the diagram: 1. Centrifuge tank; 2. Base; 3. Centrifuge filter tank; 4. Top cover; 5. Bolt 1; 6. Feed pipe; 7. Water outlet pipe; 8. Bottom pipe; 9. Stabilizing structure; 10. Stabilizing half ring; 11. Stabilizing rod; 12. Connecting pipe; 13. Anti-drop ring; 14. Bottom cover; 15. Insert ring; 16. Connecting plate; 17. Connecting bolt; 18. Limiting ring; 19. Bolt 2; 20. Ear seat; 21. Pulley; 22. Belt; 23. Mounting bracket; 24. 25. Motor 1; 26. Dehydration structure; 27. Rotating shaft; 28. Spiral blade; 29. ​​Support ring; 20. Motor 2; 31. Connecting groove; 32. Opening and closing structure; 33. Bottom cylinder; 34. Opening and closing frame; 35. Fixing block; 36. Turntable; 37. Connecting rod 1; 38. Insert shaft; 39. Placement groove; 40. Baffle; 41. Through groove; 42. Slide rod; 43. Connecting block; 44. Dual-shaft motor; 45. Fixing rod; 46. Filter screen. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0036] like Figure 1 - Figure 9 As shown, a wastewater treatment device for ships includes a centrifugal separation tank 1, a centrifugal filter tank 3 inside the centrifugal separation tank 1, a top cover 4 on the top of the centrifugal separation tank 1, and several bolts 5 threadedly connected between the top cover 4 and the centrifugal separation tank 1. A feed pipe 6 is fixedly connected to the top of the top cover 4, and a water outlet pipe 7 is fixedly connected through the bottom of the centrifugal separation tank 1. A stabilizing structure 9 is provided inside the centrifugal separation tank 1. The stabilizing structure 9 includes two stabilizing semi-rings 10 and a connecting pipe 12. Three stabilizing rods 11 are fixedly connected between the outer surface of the two stabilizing semi-rings 10 and the inner wall of the centrifugal separation tank 1. Ear seats 20 are fixedly connected to both sides of the two stabilizing semi-rings 10, and two bolts 19 are threadedly connected between the two fitting ear seats 20.

[0037] The connecting pipe 12 is located between two stable semi-rings 10. A limiting ring 18 is fixedly connected inside the connecting pipe 12 and between the two stable semi-rings 10. The connecting pipe 12 is fixedly connected to the top of the centrifugal filter tank 3. A bottom pipe 8 is fixedly connected to the bottom of the centrifugal separation tank 1 through the bottom of the centrifugal filter tank 3. An insert ring 15 is inserted into the bottom of the centrifugal separation tank 1. A bottom cover 14 is connected to the bottom of the centrifugal separation tank 1 by several small bolts. An anti-drop ring 13 is sleeved on the outer surface of the bottom pipe 8 and located between the centrifugal separation tank 1 and the bottom cover 14.

[0038] In actual operation, the sewage to be treated is introduced into the inside of the centrifugal filter barrel 3 through the feed pipe 6 and along the butt joint pipe 12, and then the motor 24 is started to drive the bottom pipe 8 to rotate through the two pulleys 21 and the belt 22, thereby driving the centrifugal filter barrel 3 to rotate, and the sewage is separated by centrifugal force, and the separated sewage is discharged out of the inside of the device through the water outlet pipe 7.

[0039] Since the top cover 4 is connected with the centrifugal separation barrel 1 through the 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, and meanwhile, the stable structure 9 can ensure that the centrifugal filter barrel 3 can be disassembled and automatically rotated, and the specific working process of the stable structure 9 is as follows: when the centrifugal filter barrel 3 rotates, the bottom pipe 8 and the butt joint pipe 12 synchronously rotate, the butt joint pipe 12 rotates inside the two stable half rings 10 through the limiting ring 18, and the bottom pipe 8 rotates at the bottom of the centrifugal separation barrel 1 through the anti-falling ring 13, and through the support and limitation of the butt joint pipe 12 and the bottom pipe 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, and thus, the stability of the rotation of the centrifugal filter barrel 3 can be ensured under the premise that the centrifugal filter barrel 3 can be disassembled and is convenient for maintenance, and therefore, the effect of solid-liquid separation is ensured.

[0040] After the plurality of bolts 5 are unscrewed and the top cover 4 is removed, the four bolts 19 are unscrewed, and then the six stable rods 11 are removed, the butt joint pipe 12 and the two stable half rings 10 can be separated, the three small bolts are loosened, the bottom cover 14 and the centrifugal separation barrel 1 can be separated, and thus the anti-falling ring 13 can be removed downward, and therefore, the limitation of the top and bottom of the centrifugal filter barrel 3 can be removed, and thus the centrifugal filter barrel 3, the butt joint pipe 12 and the bottom pipe 8 can be directly taken out.

[0041] In this embodiment, the bottom of the centrifugal filter barrel 3 is conical, and the butt joint pipe 12 is inserted with the bottom of the top cover 4.

[0042] In this embodiment, the limiting ring 18 is rotationally connected with the two stable half rings 10, the anti-falling ring 13 is rotationally connected with the centrifugal separation barrel 1 and the bottom cover 14 as a whole, and the water outlet pipe 7 penetrates the bottom of the bottom cover 14.

[0043] In this embodiment, the bottom of the centrifugal separation barrel 1 is provided with the base 2, three fixed rods 45 are fixedly connected between the bottom of the bottom cover 14 and the top of the base 2, two butt joint plates 16 are fixedly connected to the bottom of the bottom cover 14 in a symmetrical manner, and two butt joint bolts 17 are threadedly connected between the side surface of the butt joint plate 16 and the side surface of the base 2.

[0044] In the embodiment, the top of the base 2 is rotationally connected with a wheel 21, and the outer surface of the bottom pipe 8 is also fixedly connected with a wheel 21 at the bottom of the bottom cover 14, a belt 22 is sleeved between the two wheels 21, the top of the base 2 is fixedly connected with a mounting frame 23, the top of the mounting frame 23 is fixedly connected with a motor one 24, and the output shaft of the motor one 24 is fixedly connected with the wheel 21 at the front part.

[0045] In the embodiment, the inside of the base 2 is provided with a dewatering structure 25, the dewatering structure 25 includes a spiral blade 27, the inside of the base 2 is provided with a butt joint groove 30 penetrating the top at the rear part, the inside of the base 2 is provided with a rotating shaft 26, both ends of the rotating shaft 26 are fixedly connected with a support ring 28, the rear part of the base 2 is fixedly connected with a motor two 29, and the inside of the base 2 is provided with a discharging groove penetrating the bottom at the front part.

[0046] When the sewage is solid-liquid separated, the solid matters enter the inside of the base 2 through the bottom pipe 8, then the motor two 29 is started to drive the rotating shaft 26 to rotate, thereby driving the spiral blade 27, and the solid matters entering the inside of the base 2 are driven to advance through the spiral blade 27, so that the solid matters can be discharged out of the inside of the device through the discharging groove;

[0047] When the discharging groove is closed, the solid matters cannot be discharged when advancing to the frontmost part of the base 2, so that the solid matters are extruded, thereby being dewatered, and the moisture of the solid matters is further reduced, and therefore, the solid-liquid separation effect is further enhanced.

[0048] In the embodiment, the rotating shaft 26 is rotationally connected to the inside of the base 2 through the two support rings 28, the spiral blade 27 is fixedly connected to the outer surface of the rotating shaft 26, and the output shaft of the motor two 29 is fixedly connected with the support ring 28 at the rear part.

[0049] In the embodiment, the bottom pipe 8 is inserted into the butt joint groove 30, and the width of the discharging groove is greater than the diameter of the spiral blade 27.

[0050] In the embodiment, the bottom of the base 2 is provided with an opening and closing structure 31, the opening and closing structure 31 comprises a baffle 40, the bottom of the base 2 and located at the bottom of the discharge chute is fixedly connected with a bottom cylinder 32, the bottom of the bottom cylinder 32 is fixedly connected with an opening and closing frame 33, the inside of the opening and closing frame 33 is provided with a placing groove 39, the baffle 40 is slidingly connected to the inside of the placing groove 39, the inside of the opening and closing frame 33 is provided with a through groove 41 on both sides, the two sides of the rear part of the baffle 40 are respectively fixedly connected with a sliding rod 42 which penetrates through the two through grooves 41, the distal ends of the two sliding rods 42 are rotatably connected with a connecting rod two 37, the bottom of the base 2 and the rear part of both sides are fixedly connected with a fixed block 34, the distal sides of the two fixed blocks 34 are rotatably connected with a rotating disc 35, the distal sides of the two rotating discs 35 are rotatably connected with a connecting rod one 36, the proximal ends of the connecting rod one 36 and the connecting rod two 37 are connected with a plug shaft 38 which penetrates through, the bottom of the base 2 and located between the two fixed blocks 34 is fixedly connected with a connecting block 43, the bottom of the connecting block 43 is fixedly connected with a double-shaft motor 44.

[0051] When the solid matter is going through the spiral blade 27, it can enter the inside of the bottom cylinder 32 through the discharge chute, before entering the inside of the bottom cylinder 32, the opening and closing structure 31 is started, so that the solid matter can be squeezed and dewatered in the inside of the bottom cylinder 32, and the squeezed solid matter is in the shape of a cuboid, so it is easier to be discharged;

[0052] The operation steps of the opening and closing structure 31 are that the baffle 40 is located at the frontmost part of the placing groove 39 in the initial state, so as to close the bottom of the bottom cylinder 32, when the solid matter is squeezed and dewatered, the double-shaft motor 44 is started to drive the two rotating discs 35 to rotate synchronously, so as to drive the two connecting rod ones 36 and the two connecting rod twos 37 to rotate and displace, so as to drive the two through grooves 41 to slide to the rear part, so as to drive the baffle 40 to slide to the rear part along the placing groove 39, so as to open the bottom of the bottom cylinder 32, so that the dewatered solid matter can be discharged.

[0053] In the embodiment, the diameter of the rotating disc 35 is greater than the length of the through groove 41, the two output shafts of the double-shaft motor 44 are fixedly connected with the two rotating discs 35 respectively, the inside of the bottom cylinder 32 is connected with a filter screen 46 which penetrates through the front part and the bottom part, the squeezed sewage in the inside of the bottom cylinder 32 can be discharged to the inside of the device through the filter screen 46, so that the squeezed water and the squeezed solid matter can be avoided from mixing and discharging, so that the squeezed water and the squeezed solid matter can be avoided from mixing again.

[0054] It should be noted that the present application is a sewage treatment device for a ship, when in use, the sewage to be treated is introduced into the inside of the centrifugal filter barrel 3 through the feed pipe 6 and along the butt joint pipe 12, then the motor one 24 is started, and the bottom pipe 8 is driven to rotate through the two pulleys 21 and the belt 22, and then the centrifugal filter barrel 3 is driven to rotate, the sewage is separated into solid and liquid through centrifugal force, and the separated sewage is discharged to the inside of the device through the water outlet pipe 7;

[0055] Since the top cover 4 is connected with the centrifugal separation barrel 1 through several bolts 5, the top cover 4 can be opened, so as to facilitate the cleaning of the centrifugal separation barrel 1 and the centrifugal filter barrel 3, and at the same time, through the stable structure 9, it can be ensured that the centrifugal filter barrel 3 can be disassembled and automatically rotated, and the specific working process of the stable structure 9 is as follows: when the centrifugal filter barrel 3 rotates, the bottom pipe 8 and the butt joint pipe 12 rotate synchronously, the butt joint pipe 12 rotates inside the two stable half rings 10 through the limiting ring 18, and the bottom pipe 8 rotates at the bottom of the bottom cover 14 and the centrifugal separation barrel 1 through the anti-falling ring 13. By supporting and limiting the butt joint pipe 12 and the bottom pipe 8, the top and bottom of the centrifugal filter barrel 3 can be supported and limited, so that the centrifugal filter barrel 3 can rotate along the axis, so that the stability of the rotation can be ensured under the premise of meeting the disassembly of the centrifugal filter barrel 3 and facilitating the maintenance, and thus the solid-liquid separation effect is ensured.

[0056] After the several bolts 5 are unscrewed and the top cover 4 is removed, the four bolts 19 are unscrewed, and then the six stable rods 11 are removed, the butt joint pipe 12 and the two stable half rings 10 can be separated, the three small bolts are loosened, the bottom cover 14 and the centrifugal separation barrel 1 can be separated, and then the anti-falling ring 13 is removed downward, so that the top and bottom of the centrifugal filter barrel 3 are limited, and thus the centrifugal filter barrel 3, the butt joint pipe 12 and the bottom pipe 8 can be directly taken out.

[0057] When the sewage is separated into solid and liquid, the solid will enter the inside of the base 2 through the bottom pipe 8, and then the motor 29 is started to drive the rotating shaft 26 to rotate, thereby driving the spiral blade 27 to drive the solid entering the inside of the base 2 to move forward, so that the solid can be discharged from the inside of the discharge chute;

[0058] When the solid moves to the frontmost part of the base 2, it cannot be discharged, so that the solid is extruded to be dehydrated, thereby further reducing the moisture of the solid, and thus the solid-liquid separation effect is further enhanced.

[0059] When the solid moves forward through the spiral blade 27, it can enter the inside of the bottom cylinder 32 through the discharge chute, and before entering the inside of the bottom cylinder 32, the opening and closing structure 31 is started to make the solid be extruded and dehydrated in the inside of the bottom cylinder 32, and the extruded solid is in the shape of a cuboid, so that it is more easily discharged.

[0060] The operation steps of the opening and closing structure 31 are as follows: the baffle plate 40 is located at the frontmost part of the placing groove 39 in the initial state, so as to close the bottom of the bottom cylinder 32; when the solid material is squeezed and dewatered, the double-shaft motor 44 is started to drive the two rotating discs 35 to rotate synchronously, so as to drive the two connecting rods one 36 and the two connecting rods two 37 to rotate and displace, so as to drive the two through grooves 41 to slide to the rear part, so as to drive the baffle plate 40 to slide to the rear part along the placing groove 39, so as to open the bottom of the bottom cylinder 32, so that the solid material after dewatering can be discharged.

[0061] The basic principles and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A wastewater treatment device for ships, comprising a centrifugal separator (1), wherein a centrifugal filter (3) is disposed inside the centrifugal separator (1), and a top cover (4) is disposed on the top of the centrifugal separator (1), wherein a plurality of bolts (5) are threadedly connected between the top cover (4) and the centrifugal separator (1), characterized in that: The top of the top cover (4) is fixedly connected to the feed pipe (6), and the bottom of the centrifugal separator (1) is fixedly connected to the water outlet pipe (7). The centrifugal separator (1) is equipped with a stabilizing structure (9). The stabilizing structure (9) includes two stabilizing half-rings (10) and a connecting pipe (12). The outer surfaces of the two stabilizing half-rings (10) are fixedly connected to the inner wall of the centrifugal separator (1) with three stabilizing rods (11). The two sides of the two stabilizing half-rings (10) are fixedly connected to ear seats (20). The two ear seats (20) that fit together are threadedly connected with two bolts (19). The connecting pipe (12) is located between two stable semi-rings (10). A limiting ring (18) is fixedly connected inside the connecting pipe (12) and between the two stable semi-rings (10). The connecting pipe (12) is fixedly connected to the top of the centrifugal filter (3). The bottom of the centrifugal filter (3) is fixedly connected to the bottom of the centrifugal separation tank (1). A plug ring (15) is inserted into the bottom of the centrifugal separation tank (1). The bottom of the centrifugal separation tank (1) is connected to the bottom cover (14) by several small bolts. An anti-drop ring (13) is sleeved on the outer surface of the bottom pipe (8) and between the centrifugal separation tank (1) and the bottom cover (14). The centrifugal separator (1) is provided with a base (2) at the bottom. Three fixing rods (45) are fixed 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). Two docking bolts (17) are threaded between the side of the docking plate (16) and the side of the base (2). The base (2) is provided with a dewatering structure (25) inside, the dewatering structure (25) includes a spiral blade (27), a docking groove (30) is provided through the top of the rear part of the base (2), a rotating shaft (26) is provided inside the base (2), a support ring (28) is fixedly connected to both ends of the rotating shaft (26), a motor (29) is fixedly connected to the rear part of the base (2), and a discharge groove is provided through the bottom of the front part of the base (2); 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 the bottom of the discharge chute. An opening and closing frame (33) is fixedly connected to the bottom of the bottom cylinder (32). A placement groove (39) is opened inside the opening and closing frame (33). The baffle (40) is slidably connected to the inside of the placement groove (39). A through groove (41) is opened through both sides of the opening and closing frame (33). A sliding rod (42) is fixedly connected to each of the two through grooves (41) on the rear side of the baffle (40). The two sliding rods (42) 42) The two ends of the base (2) are rotatably connected to the two opposite ends of the base (2). The two sides of the bottom of the base (2) are fixedly connected to the two fixed blocks (34). The two opposite ends of the fixed blocks (34) are rotatably connected to the two turntables (35). The two opposite ends of the turntables (35) are rotatably connected to the two opposite ends of the base (2). The two ends of the connecting rod (36) and the two adjacent ends of the connecting rod (37) are connected to the insert shaft (38). The bottom of the base (2) and the two fixed blocks (34) are fixedly connected to the connecting block (43). The bottom of the connecting block (43) is fixedly connected to the dual-axis motor (44).

2. The marine sewage treatment device according to claim 1, characterized in that: The bottom of the centrifugal filter barrel (3) is conical, and the connecting pipe (12) is inserted into the bottom of the top cover (4).

3. The marine sewage treatment device according to claim 1, characterized in that: The limiting ring (18) is rotatably connected to two stabilizing half-rings (10), the anti-drop ring (13) is rotatably connected to the centrifugal separator (1) and the bottom cover (14), and the water outlet pipe (7) also penetrates the bottom of the bottom cover (14).

4. A marine sewage treatment device according to claim 1, 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 sleeved between the two pulleys (21). 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). The output shaft of the motor (24) is fixedly connected to the pulley (21) at the front.

5. A marine sewage treatment device according to claim 1, characterized in that: The rotating shaft (26) is rotatably connected to the inside of the base (2) through two support 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 support ring (28) at the rear.

6. A marine sewage treatment device according to claim 1, characterized in that: The bottom tube (8) is inserted into the docking groove (30), and the width of the discharge groove is greater than the diameter of the spiral blade (27).

7. A marine sewage treatment device according to claim 1, characterized in that: The diameter of the turntable (35) is greater than the length of the through groove (41). The two output shafts of the dual-axis motor (44) are fixedly connected to the two turntables (35) respectively. The bottom cylinder (32) has a filter screen (46) that runs through the front and is connected to the bottom.

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