Domestic sewage treatment device suitable for ships

Abstract

The invention belongs to the field of ship environmental protection equipment, and particularly relates to a domestic sewage treatment device suitable for ships, which comprises a treatment box, a sewage channel for circulating domestic sewage is arranged in the treatment box, a plurality of groups of membrane components for treating sewage in the sewage channel are arranged in an inner cavity of the treatment box, and the plurality of groups of membrane components are arranged at equal intervals; the equipment size is reduced through the integrated arrangement of the multiple groups of membrane components, the impact resistance of the membrane components can be improved through the cooperation of the treatment box, the sewage channel and the membrane components and the honeycomb-shaped supporting structures of the membrane components, the stress generated by ship swinging can be effectively resisted, and the breakage of membrane wires is avoided; on the premise of ensuring the sewage treatment efficiency, the overall size of the equipment is reduced, the precious marine space is saved, and the porous structure of the honeycomb structure does not affect the sewage circulation and treatment effect.

Description

Technical Field

[0001] This invention belongs to the field of marine environmental protection equipment technology, and specifically relates to a sewage treatment device suitable for ships. Background Technology

[0002] The treatment of shipboard sewage is crucial to preventing marine pollution. Currently, during the navigation and operation of ships at sea, the crew's bathing, kitchen and other daily activities generate sewage. In the past, this sewage was directly discharged into the ocean. However, as the emission requirements for ships at sea become increasingly stringent, the requirements for the discharge of sewage generated on ships are also becoming increasingly stringent. In particular, sewage contains harmful bacteria, nitrogen, phosphorus and other substances that can cause serious water pollution. Therefore, the requirements for harmful bacteria (mainly E. coli), COD (chemical oxygen demand) and BOD (biochemical oxygen demand) in the discharged sewage are becoming increasingly strict. Traditional marine sewage treatment often employs processes such as contact oxidation and aeration sterilization, which result in large equipment size, treatment effect greatly affected by ship swaying and impact, and poor effluent quality stability. In particular, it is inadequate when dealing with stricter emission standards such as IMO (International Maritime Organization) MEPC.227(64) resolution, although membrane bioreactor (MBR) technology has been widely used on land. However, there are many problems with directly transplanting it to ships: flat sheet membranes or hollow fiber membrane modules are prone to membrane fiber breakage and uneven fouling in the swaying environment of ships. At the same time, traditional aeration methods have low oxygen utilization and high energy consumption under dynamic conditions, and the equipment integration is insufficient, occupying a large amount of valuable ship space. Therefore, we need to propose a domestic sewage treatment device suitable for ships. Summary of the Invention

[0003] To address the above problems, the present invention provides a sewage treatment device suitable for ships, comprising: The treatment tank is equipped with a sewage channel for the flow of domestic sewage. The inner cavity of the treatment tank is equipped with multiple membrane modules for treating the sewage in the sewage channel. The multiple membrane modules are arranged at equal intervals. The integrated arrangement of multiple membrane modules reduces the size of the equipment. An aeration assembly is installed at the bottom of the sewage channel of the treatment tank, and a control box electrically connected to the aeration assembly is installed on the treatment tank. The aeration assembly generates a directional jet in the sewage to clean the membrane assembly.

[0004] Furthermore, the sewage channel includes an inlet pipe, a pulverizing chamber, a transfer chamber, a treatment chamber, and an outlet pipe arranged inside the treatment tank for sewage flow. The aeration assembly and multiple membrane modules are all installed inside the treatment chamber. The aeration assembly is located below the multiple membrane modules. An installation assembly for installing the multiple membrane modules is fixed at the top of the treatment chamber.

[0005] Furthermore, each of the multiple membrane components includes a first honeycomb plate, a second honeycomb plate, and a membrane body. The membrane body is disposed between the first honeycomb plate and the second honeycomb plate. Each corner of one side of the first honeycomb plate is fixedly connected with a positioning block. One side of the second honeycomb plate is provided with positioning holes for multiple sets of positioning blocks to be inserted. One side of each set of positioning blocks is threaded with a positioning bolt that abuts against the second honeycomb plate.

[0006] Furthermore, the aeration assembly includes a metal pipe rotatably mounted on one side of the treatment tank. One end of the metal pipe located inside the sewage channel is connected to multiple sets of aeration pipes, and each set of aeration pipes is equipped with multiple aeration heads. The other end of the metal pipe located outside the treatment tank is fixedly connected to a toothed disc.

[0007] Furthermore, the aeration assembly also includes a third cylinder and a guide beam installed on one side of the treatment tank. A rack that meshes with the gear plate is slidably arranged on the guide beam, and the telescopic end of the third cylinder is fixedly connected to the upper end of the rack.

[0008] Furthermore, the mounting assembly includes a mounting top plate fixedly connected to the top of the processing chamber. The lower surface of the mounting top plate is fixedly connected to multiple sets of limiting clamps, and each set of limiting clamps is provided with multiple sets of support bolts for supporting the first honeycomb plate and the second honeycomb plate.

[0009] Furthermore, it also includes a pulverizing assembly installed inside the pulverizing chamber; The crushing assembly includes two sets of rotating shafts rotatably disposed in the crushing chamber. One end of each set of rotating shafts passes through the processing box and is driven by a motor. Multiple sets of crushing blades are disposed on the outer side of each set of rotating shafts.

[0010] Furthermore, it also includes water transfer components and water isolation components; The water transfer assembly includes a first water guide pipe that connects the transfer chamber and the treatment chamber, and a first sewage pump located on the side of the treatment tank adjacent to the third cylinder is installed on the first water guide pipe. The water-blocking assembly includes a second cylinder and a sealing plate. An inner groove for installing the second cylinder is provided on the other side of the processing box. The telescopic end of the second cylinder passes through the processing box and is fixedly connected to the lower surface of the sealing plate. Two sets of limiting rods passing through the processing box are fixedly connected to the lower surface of the sealing plate. A water passage hole is provided inside the processing box for communicating with the crushing chamber and the transfer chamber.

[0011] Furthermore, it also includes a circulation assembly located on the side of the treatment tank adjacent to the third water pump; The circulation assembly includes a second sewage pump installed on the treatment tank. The inlet and outlet of the second sewage pump are both connected to a second water guide pipe. The inlet and outlet of the second water guide pipe are respectively connected to the treatment chamber and the pulverizing chamber.

[0012] Furthermore, it also includes an additive assembly located on the other side of the processing box. The additive assembly includes a piston cylinder, one end of which is fixedly connected to a connecting pipe communicating with the transfer chamber. The other end of the piston cylinder is equipped with a first cylinder. The telescopic end of the first cylinder is fixedly connected to a piston body located inside the piston cylinder. The upper outer side of the piston cylinder is fixedly connected to a connecting pipe, and the upper end of the connecting pipe is detachably equipped with an additive bottle.

[0013] The beneficial effects of this invention are: 1. This invention improves the impact resistance of the membrane module by coordinating the treatment tank, sewage channel and membrane module. The honeycomb support structure of the membrane module can effectively resist the stress generated by the swaying of the ship and avoid membrane fiber breakage. At the same time, multiple membrane modules are integrated and arranged at equal intervals, which reduces the overall size of the equipment and saves valuable ship space while ensuring sewage treatment efficiency. The porous structure of the honeycomb structure does not affect the sewage flow and treatment effect. 2. Through the cooperation between the treatment tank and the aeration component, the aeration component can swing at a certain angle at the bottom of the treatment tank. The rotational aeration can make the oxygen distribution in the sewage more uniform, improve the oxygen utilization rate in the dynamic environment, reduce energy consumption, and provide sufficient oxygen for the biological treatment of sewage. At the same time, the directional jet and swirling flow can continuously and uniformly wash the surface of the membrane component. Combined with the swaying of the ship, the cleaning effect is further enhanced, which can effectively alleviate membrane fouling, reduce the frequency of chemical cleaning, and extend the service life of the membrane component.

[0014] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the structure according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the structure according to an embodiment of the present invention is shown; Figure 4A schematic diagram of the structure according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of the structure according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of the structure according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of the structure according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of the structure according to an embodiment of the present invention is shown; Figure 9 A schematic diagram of the structure according to an embodiment of the present invention is shown; Figure 10 A schematic diagram of the structure according to an embodiment of the present invention is shown.

[0017] In the diagram: 1. Treatment tank; 2. Inlet pipe; 3. Outlet pipe; 4. Control box; 5. Water transfer assembly; 51. First sewage pump; 52. First guide pipe; 6. Circulation assembly; 61. Second sewage pump; 62. Second guide pipe; 7. Addition assembly; 71. Piston cylinder; 72. Connecting pipe; 73. Connecting pipe; 75. First cylinder; 76. Piston body; 8. Water-blocking assembly; 81. Second cylinder; 82. Sealing plate; 83. Limiting rod; 9. Crushing assembly; 91. Motor; 92. Rotating shaft; 93. Crushing blade; 10. Safety device. Components: 101. Mounting top plate; 102. Limiting clamp; 103. Support bolt; 11. Membrane module; 111. First honeycomb panel; 112. Second honeycomb panel; 113. Positioning block; 114. Positioning hole; 115. Positioning bolt; 116. Membrane body; 12. Aeration component; 121. Metal pipe; 122. Aeration pipe; 123. Aeration head; 124. Gear disc; 125. Third cylinder; 126. Gear rack; 127. Guide beam; 13. Additive bottle; 14. Crushing chamber; 15. Transfer chamber; 16. Processing chamber. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figure 1-10As shown, this embodiment of the invention provides a sewage treatment device suitable for ships, including a treatment tank 1 for transferring sewage. The treatment tank 1 is provided with a sewage channel for the flow of domestic sewage. The sewage undergoes multi-stage treatment through the sewage channel. The inner cavity of the treatment tank 1 is equipped with multiple sets of membrane modules 11 for treating the sewage in the sewage channel. The multiple sets of membrane modules 11 are arranged at equal intervals. The sewage is filtered and purified by the multiple sets of membrane modules 11. The integrated arrangement of the multiple sets of membrane modules 11 reduces the size of the equipment. An aeration assembly 12 is installed at the bottom of the sewage channel of the treatment tank 1. A control box 4 electrically connected to the aeration assembly 12 is installed on the treatment tank 1. The aeration assembly 12 generates a directional jet in the sewage to clean the membrane assembly 11.

[0020] In this embodiment, the sewage channel includes an inlet pipe 2, a crushing chamber 14, a transfer chamber 15, a treatment chamber 16 and an outlet pipe 3 arranged in the inner cavity of the treatment tank 1 for sewage to flow. The sewage passes through the inlet pipe 2, the crushing chamber 14, the transfer chamber 15 and the treatment chamber 16 in sequence and is discharged through the outlet pipe 3. Before entering the treatment tank 1 through the inlet pipe 2, the sewage will pass through a metal filter screen to filter out particle impurities. The aeration component 12 and the multiple membrane modules 11 are both installed in the treatment chamber 16. The aeration component 12 is located below the multiple membrane modules 11. The top of the treatment chamber 16 is fixed with an installation component 10 for installing the multiple membrane modules 11. The wastewater in the treatment chamber 16 is aerated by the aeration component 12, so that the directional jet generated by the aeration component 12 passes through the surface of the membrane module 11, thereby improving the cleaning efficiency of the surface of the membrane module 11.

[0021] Specifically, each of the multiple membrane modules 11 includes a first honeycomb plate 111, a second honeycomb plate 112, and a membrane body 116. The membrane body 116 is disposed between the first honeycomb plate 111 and the second honeycomb plate 112. The first honeycomb plate 111 and the second honeycomb plate 112 have the same thickness, and both are provided with honeycomb holes for water supply. The honeycomb structure improves the overall strength. A positioning block 113 is fixedly connected to each corner of one side of the first honeycomb panel 111. A positioning hole 114 is opened on one side of the second honeycomb panel 112 for multiple sets of positioning blocks 113 to be inserted. A positioning bolt 115 that abuts against the second honeycomb panel 112 is threaded to one side of each set of positioning blocks 113. Multiple sets of positioning holes 114 facilitate the quick insertion of multiple sets of positioning blocks 113, thereby facilitating the splicing of the first honeycomb panel 111 and the second honeycomb panel 112, and thus fixing the membrane body 116 between the first honeycomb panel 111 and the second honeycomb panel 112, improving the installation stability of the membrane body 116. The positioning bolt 115 can improve the stability of the connection between the first honeycomb panel 111 and the second honeycomb panel 112. It is worth noting that the multiple sets of membrane modules 11 lamps can effectively resist the stress generated by the ship's swaying and impact, and prevent damage to the membrane body 116.

[0022] Furthermore, the aeration assembly 12 includes a metal pipe 121 rotatably disposed on one side of the treatment tank 1. One end of the metal pipe 121 located in the sewage channel is connected to multiple sets of aeration pipes 122. Each set of aeration pipes 122 is provided with multiple aeration heads 123. The other end of the metal pipe 121 located outside the treatment tank 1 is fixedly connected to a toothed disc 124. Multiple aeration pipes 122 are connected by a metal pipe 121, and multiple aeration heads 123 are set on the aeration pipes 122 to expand the aeration coverage. The metal pipe 121 has a supporting function, high structural strength, and is suitable for complex working conditions on ships. The gear disc 124 is set to provide a reliable transmission structure for the rotation drive of the aeration pipes 122 so as to adjust the aeration angle.

[0023] Secondly, the aeration assembly 12 also includes a third cylinder 125 and a guide beam 127 installed on one side of the treatment box 1. A rack 126 that meshes with the toothed disc 124 is slidably arranged on the guide beam 127. The telescopic end of the third cylinder 125 is fixedly connected to the upper end of the rack 126. The automatic rotation adjustment of the aeration pipe 122 is achieved by using the transmission cooperation of the third cylinder 125, rack 126, and gear disc 124. The operation is convenient and the adjustment efficiency is high. Specifically, the third cylinder 125 drives the rack 126 to move on the guide beam 127, so that the rack 126 meshes with the gear disc 124, thereby causing the gear disc 124 to drive the metal pipe 121 to rotate. At the same time, the reciprocating movement of the rack 126 allows the metal pipe 121 to swing within a certain angle to achieve the sweeping of airflow, thereby improving the cleaning effect on the membrane module 11.

[0024] Furthermore, in a preferred embodiment, the mounting assembly 10 includes a mounting top plate 101 fixedly connected to the top of the processing cavity 16. The lower surface of the mounting top plate 101 is fixedly connected to multiple sets of limiting clamps 102, and each set of limiting clamps 102 is provided with multiple sets of support bolts 103 supporting the first honeycomb plate 111 and the second honeycomb plate 112. The mounting top plate 101 and multiple sets of limiting clamps 102 form the mounting frame of the membrane module 11. At the same time, the support bolts 103 and the limiting clamps 102 work together to firmly fix the membrane module 11, preventing the membrane module 11 from shifting or colliding when the ship rolls, thus ensuring stable treatment effect.

[0025] Specifically, it also includes a crushing assembly 9 installed in the crushing chamber 14; the crushing assembly 9 includes two sets of rotating shafts 92 rotatably disposed in the crushing chamber 14, one end of each set of rotating shafts 92 passes through the processing box 1 and is driven by a motor 91, and multiple sets of crushing blades 93 are provided on the outer side of each set of rotating shafts 92. The crushing component 9 is driven by a motor 91 to rotate two sets of rotating shafts 92 and crushing blades 93 at high speed, which can quickly crush small solid impurities in sewage, prevent impurities from clogging sewage channels, membrane modules 11 or aeration heads 123, ensure the smooth operation of subsequent treatment processes, and the crushed impurities are more easily decomposed and treated by subsequent processes, thus improving the overall sewage treatment effect.

[0026] It also includes a water transfer assembly 5 and a water isolation assembly 8; the water transfer assembly 5 includes a first water guide pipe 52 that connects the transfer chamber 15 and the treatment chamber 16, and a first sewage pump 51 located on the side of the treatment tank 1 adjacent to the third cylinder 125 is installed on the first water guide pipe 52. The water transfer assembly 5 realizes the directional transportation of sewage between the transfer chamber 15 and the treatment chamber 16 through the first sewage pump 51 and the first water guide pipe 52. It has high transportation efficiency, can accurately control sewage flow, and is suitable for different treatment loads. The water-blocking assembly 8 includes a second cylinder 81 and a sealing plate 82. An inner groove for installing the second cylinder 81 is provided on the other side of the processing box 1. The telescopic end of the second cylinder 81 passes through the processing box 1 and is fixedly connected to the lower surface of the sealing plate 82. Two sets of limiting rods 83 that pass through the processing box 1 are fixedly connected to the lower surface of the sealing plate 82. A water passage hole is provided in the processing box 1 for communicating between the crushing chamber 14 and the transfer chamber 15. The water-blocking component 8 drives the sealing plate 82 to rise and fall through the second cylinder 81, thereby controlling the opening and closing of the crushing chamber 14 and the transfer chamber 15. This facilitates the adjustment of sewage flow according to the processing progress. At the same time, the limit rod 83 ensures that the sealing plate 82 rises and falls smoothly and is reliably sealed, preventing sewage leakage or crossflow.

[0027] It is worth noting that the system also includes a circulation assembly 6 located on the side adjacent to the third water pump in the treatment tank 1. The circulation assembly 6 includes a second sewage pump 61 installed on the treatment tank 1. The inlet and outlet of the second sewage pump 61 are both connected to a second water guide pipe 62. The inlet and outlet of the second water guide pipe 62 are respectively connected to the treatment chamber 16 and the pulverizing chamber 14. The circulation component 6 uses the second sewage pump 61 and the second water guide pipe 62 to return the substandard sewage in the treatment chamber 16 to the crushing chamber 14 for secondary treatment, which significantly improves the quality of the effluent and ensures that the discharge standards are met. The circulation process is automated and requires no human intervention, which is suitable for the unmanned or minimally manned operation of ships.

[0028] In addition, it also includes an additive assembly 7 located on the other side of the processing box 1. The additive assembly 7 includes a piston cylinder 71. One end of the piston cylinder 71 is fixedly connected to a connecting pipe 72 that communicates with the transfer chamber 15. The other end of the piston cylinder 71 is equipped with a first cylinder 75. The telescopic end of the first cylinder 75 is fixedly connected to a piston body 76 located inside the piston cylinder 71. The upper outer side of the piston cylinder 71 is fixedly connected to a connecting pipe 73. The upper end of the connecting pipe 73 is detachably equipped with an additive bottle 13. The additive component 7 drives the piston body 76 to reciprocate within the piston cylinder 71 via the first cylinder 75, which can precisely control the amount and speed of additive injection, achieving uniform mixing of additive and wastewater, and improving wastewater treatment effect. The additive bottle 13 and the connecting pipe 73 are detachably connected, facilitating the replenishment and replacement of additives, adapting to different water quality treatment needs. The piston structure has good sealing performance, preventing additive leakage and ensuring safe operation of the equipment.

[0029] In operation, shipboard sewage enters the treatment tank 1 through the inlet pipe 2, first flowing into the pulverizing chamber 14. After being pulverized by the rotating blades of the pulverizing component 9, large impurities are crushed, and the sewage then enters the transfer chamber 15 through the water inlet. At this time, the additive component 7 precisely injects the necessary additives for sewage treatment into the transfer chamber 15, ensuring thorough mixing with the sewage. Subsequently, the first sewage pump 51 of the water transfer component 5 transports the sewage from the transfer chamber 15 to the treatment chamber 16 through the first water guide pipe 52. The sealing plate 82 of the water-blocking component 8 closes, ensuring stable treatment of the sewage within the treatment chamber 16. Multiple integrated membrane modules 11 filter and purify wastewater. Meanwhile, under the control of the control box 4, the aeration module 12 drives the aeration pipe 122 to rotate through the third cylinder 125. The aeration head 123 generates directional jets and swirls, which not only oxygenate the wastewater for biochemical treatment but also wash and reduce fouling on the surface of the membrane module 11. If the treated wastewater does not meet the standards, the circulation module 6 returns it to the crushing chamber 14 for secondary treatment, so that the qualified wastewater is discharged through the effluent pipe 3. The whole process realizes the automated and continuous treatment of wastewater, which is suitable for the rolling conditions of ships.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sewage treatment device suitable for ships, characterized in that, include: Treatment box (1), the treatment box (1) is provided with a sewage channel for the flow of domestic sewage, and the inner cavity of the treatment box (1) is equipped with multiple membrane modules (11) for treating sewage in the sewage channel. The multiple membrane modules (11) are arranged at equal intervals, and the equipment volume is reduced by integrating the multiple membrane modules (11). An aeration assembly (12) is installed at the bottom of the sewage channel of the treatment tank (1). A control box (4) electrically connected to the aeration assembly (12) is installed on the treatment tank (1). The aeration assembly (12) generates a directional jet in the sewage to clean the membrane assembly (11).

2. A sewage treatment device suitable for ships according to claim 1, characterized in that: The sewage channel includes an inlet pipe (2) for sewage flow, a pulverizing chamber (14), a transfer chamber (15), a treatment chamber (16), and an outlet pipe (3) installed in the inner cavity of the treatment tank (1). The aeration component (12) and multiple membrane modules (11) are both installed in the treatment chamber (16). The aeration component (12) is located below the multiple membrane modules (11). An installation component (10) for installing the multiple membrane modules (11) is fixed at the top of the treatment chamber (16).

3. A sewage treatment device suitable for ships according to claim 2, characterized in that: Each of the multiple membrane modules (11) includes a first honeycomb plate (111), a second honeycomb plate (112), and a membrane body (116). The membrane body (116) is disposed between the first honeycomb plate (111) and the second honeycomb plate (112). Each corner of one side of the first honeycomb plate (111) is fixedly connected with a positioning block (113). One side of the second honeycomb plate (112) is provided with a positioning hole (114) for multiple positioning blocks (113) to be inserted. One side of each positioning block (113) is threaded with a positioning bolt (115) that abuts against the second honeycomb plate (112).

4. A sewage treatment device suitable for ships according to claim 3, characterized in that: The aeration assembly (12) includes a metal pipe (121) rotatably disposed on one side of the treatment tank (1). One end of the metal pipe (121) located in the sewage channel is connected to multiple sets of aeration pipes (122). Each set of aeration pipes (122) is provided with multiple aeration heads (123). One end of the metal pipe (121) located outside the treatment tank (1) is fixedly connected to a toothed disc (124).

5. A sewage treatment device suitable for ships according to claim 4, characterized in that: The aeration assembly (12) also includes a third cylinder (125) and a guide beam (127) installed on one side of the treatment box (1). A rack (126) that meshes with the toothed disc (124) is slidably arranged on the guide beam (127). The telescopic end of the third cylinder (125) is fixedly connected to the upper end of the rack (126).

6. A sewage treatment device suitable for ships according to claim 5, characterized in that: The mounting assembly (10) includes a mounting top plate (101) fixedly connected to the top of the processing chamber (16). Multiple sets of limiting clamps (102) are fixedly connected to the lower surface of the mounting top plate (101), and multiple sets of support bolts (103) supporting the first honeycomb plate (111) and the second honeycomb plate (112) are provided on each set of limiting clamps (102).

7. A sewage treatment device suitable for ships according to claim 6, characterized in that: It also includes a pulverizing assembly (9) installed inside the pulverizing chamber (14); The crushing assembly (9) includes two sets of rotating shafts (92) rotatably disposed in the crushing chamber (14). One end of each set of rotating shafts (92) passes through the processing box (1) and is driven by a motor (91). Multiple sets of crushing blades (93) are provided on the outer side of each set of rotating shafts (92).

8. A sewage treatment device suitable for ships according to claim 7, characterized in that: It also includes a water transfer component (5) and a water-proof component (8); The water transfer assembly (5) includes a first water pipe (52) that connects the transfer chamber (15) and the treatment chamber (16), and a first sewage pump (51) is installed on the first water pipe (52) on the side adjacent to the treatment tank (1) and the third cylinder (125). The water-blocking assembly (8) includes a second cylinder (81) and a sealing plate (82). The other side of the processing box (1) is provided with an inner groove for the installation of the second cylinder (81). The telescopic end of the second cylinder (81) passes through the processing box (1) and is fixedly connected to the lower surface of the sealing plate (82). The lower surface of the sealing plate (82) is fixedly connected with two sets of limiting rods (83) that pass through the processing box (1). The processing box (1) is provided with a water passage hole for the crushing chamber (14) and the transfer chamber (15) to communicate.

9. A sewage treatment device suitable for ships according to claim 8, characterized in that: It also includes a circulation assembly (6) located on the side adjacent to the third water pump in the treatment tank (1); The circulation component (6) includes a second sewage pump (61) installed on the treatment tank (1). The inlet and outlet of the second sewage pump (61) are both connected to a second water guide pipe (62). The inlet and outlet of the second water guide pipe (62) are respectively connected to the treatment chamber (16) and the crushing chamber (14).

10. A sewage treatment device suitable for ships according to claim 9, characterized in that: It also includes an additive assembly (7) located on the other side of the processing box (1). The additive assembly (7) includes a piston cylinder (71). One end of the piston cylinder (71) is fixedly connected to a connecting pipe (72) communicating with the transfer chamber (15). The other end of the piston cylinder (71) is equipped with a first cylinder (75). The telescopic end of the first cylinder (75) is fixedly connected to a piston body (76) located inside the piston cylinder (71). The upper outer side of the piston cylinder (71) is fixedly connected to a connecting pipe (73). The upper end of the connecting pipe (73) is detachably equipped with an additive bottle (13).

Images