Oily water treatment equipment for ship repair

Abstract

The invention relates to the related technical field of sewage treatment, in particular to oily water treatment equipment for ship repair, which comprises a treatment tank, a liquid discharge shaft, a liquid distribution piece, a liquid guide layer and a liquid collection cavity, the bottom surface of the treatment tank is fixedly mounted on a base through a first-stage support leg, and a liquid inlet is formed in the side wall of the middle position of the treatment tank; the liquid inlet is connected with an oily water conveying pipeline, an oil liquid outlet is formed in the side wall, close to the upper end, of the treatment tank, an oil discharging pipeline is connected to the oil liquid outlet, the liquid discharging shaft is rotationally installed on the bottom face of the treatment tank through a sealing bearing, and the liquid discharging shaft is of a circular pipe structure with the upper end sealed; the oil guide pipeline is arranged at the top of the liquid distribution part, so that the oil body floats upwards along the oil guide pipeline by utilizing the characteristic that the density of the oil body is relatively small, the oil body passes through the oil guide pipeline in a relatively close manner, and small-particle oil drops can be better gathered into large oil drops; therefore, oil bodies in the oily water can be better gathered together, and oil and water can be better separated.

Description

Technical Field

[0001] The present invention relates to the technical field related to sewage treatment, and in particular to an oily sewage treatment device for ship repair. Background Art

[0002] The existing Chinese patent document with the announcement number CN117566984B discloses a two-way treatment device for oily sewage for ship repair, which includes a mobile trolley, a storage tank is fixed on the mobile trolley, and a maintenance port is arranged on the side of the storage tank, and also includes a liquid suction mechanism, a volatile filtering mechanism, a debris removal mechanism and an oil-water separation mechanism. The storage tank is separated into an equipment area, an oil storage area, a water storage area and a gas storage area by a partition. The liquid suction mechanism and the volatile filtering mechanism are installed in the equipment area, the debris removal mechanism is installed in the oil storage area, and the oil-water separation mechanism is used to separate the sewage in the oil storage area. The oil and gas in the ship are filtered into the water storage area. The liquid suction mechanism is used to suck the oil and water in the ship into the volatile filtering mechanism. The volatile filtering mechanism is connected to the oil storage area and the gas storage area through pipelines. The impurity removal mechanism includes a filter press motor, a filter press screw rod, an extrusion plate and a filter element. The filter press screw rod is rotatably installed at the bottom of the oil storage area. The extrusion plate is threadedly connected to the filter press screw rod. The filter press motor can drive the extrusion plate to reciprocate in the oil storage area through the filter press screw rod. A through hole is opened on the extrusion plate. The filter element is fixed in the through hole and can communicate with the space on both sides of the extrusion plate.

[0003] However, in the above scheme, the filter press motor can drive the extrusion plate to reciprocate in the oil storage area through the filter press screw to achieve oil-water separation. This method not only has low separation efficiency, but also requires high overall separation energy consumption, resulting in poor application effect of the equipment in actual application. For this reason, the present invention proposes an oily wastewater treatment equipment for ship repair to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide an oily wastewater treatment device for ship repair to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an oily wastewater treatment device for ship repair, comprising:

[0006] A treatment tank, the bottom surface of which is fixedly mounted on the base through a primary support leg, a liquid inlet is provided on the side wall near the middle of the treatment tank, the liquid inlet is connected to the oily wastewater delivery pipeline, and an oil outlet is provided on the side wall near the upper end of the treatment tank, the oil outlet is connected to the oil discharge pipeline;

[0007] A drain shaft, which is rotatably mounted on the bottom surface of the treatment tank through a sealed bearing, is a round tube structure with a sealed upper end, and a positioning groove is provided on the side wall of the drain shaft, and a through hole is provided at the bottom of the positioning groove;

[0008] Liquid distribution part, an annular mounting seat is integrally formed on the inner wall of the processing tank, the liquid distribution part is mounted on the annular mounting seat, and an oil guide pipe is arranged at the top of the liquid distribution part;

[0009] A liquid guiding layer, wherein a mounting tube is integrally formed at the center of the liquid guiding layer, the mounting tube is sleeved and mounted on the liquid discharging shaft, and the liquid guiding layer is arranged in multiple layers at equal intervals on the liquid discharging shaft;

[0010] The liquid collecting chamber is fixedly mounted on the base through secondary supporting legs, and the liquid outlet of the liquid collecting chamber is connected to a drainage pipe, and the upper end opening of the liquid collecting chamber is located directly below the drainage shaft.

[0011] Preferably, the liquid inlet is located on the upper side of the liquid distribution part, the oil outlet is located higher than the port of the oil guide pipe, a sealing cover is fixedly installed at the upper port of the processing tank, a transparent glass observation window is provided on the side wall of the processing tank, a liquid level sensor is provided in the inner cavity of the processing tank, a motor mounting seat is fixedly installed on the side wall of the liquid collecting chamber, a reduction motor is fixedly installed on the motor mounting seat, a transmission gear is fixedly installed on the output shaft of the reduction motor, a driven gear is fixedly installed on the lower end of the discharge shaft, and the driven gear is meshed with the transmission gear.

[0012] Preferably, the liquid-conducting layer is in a trumpet-shaped structure with an opening facing upward, and the surface of the liquid-conducting layer is coated with an oleophilic coating. A threaded hole is provided on the mounting tube, the threaded hole is arranged corresponding to the positioning groove, and a positioning piece is installed in the threaded hole, and the positioning piece has a filtering function.

[0013] Preferably, the positioning member is composed of a filter ball, a primary connecting shaft, a secondary connecting shaft and a tertiary connecting shaft, the filter ball, the primary connecting shaft, the secondary connecting shaft and the tertiary connecting shaft are integrally formed, and a center hole is penetrated through the primary connecting shaft, the center hole is communicated with the inner cavity of the filter ball, a main filter hole is provided on the side wall of the filter ball, a screw nut is integrally formed on the outer side surface of the filter ball in a direction opposite to the primary connecting shaft, an inner hexagonal wrench slot is provided on the end face of the screw nut, the diameters of the primary connecting shaft, the secondary connecting shaft and the tertiary connecting shaft are arranged in a decreasing trend, an external thread structure is provided on the outer side wall of the primary connecting shaft, and the primary connecting shaft is screwed and installed in the threaded hole, and at this time, the secondary connecting shaft is inserted and positioned in the positioning slot.

[0014] Preferably, a rubber sealing gasket is sleeved on the third-level connecting shaft, and when the positioning member is actually installed, the rubber sealing gasket is in a compressed state.

[0015] Preferably, a limit plate is integrally formed on the top side wall of the discharge shaft, and a guide protrusion is integrally formed on the side wall of the discharge shaft, and a guide groove is opened on the side wall of the mounting tube, and the guide groove and the guide protrusion are arranged in alignment, and when the mounting tube is actually installed, the guide groove is sleeved on the guide protrusion, and the uppermost mounting tube is in contact with the limit plate, and adjacent mounting tubes are in contact with each other.

[0016] Preferably, a support cone is fixedly welded on the outer wall of the filter ball at the position of the main filter hole, the support cone is a hollow cone structure, and secondary filter holes are evenly opened on the side wall of the support cone, and the outer wall of the support cone is covered with a hydrophilic and oleophobic layer.

[0017] Preferably, the hydrophilic and oleophobic layer is a Miffy cloth layer.

[0018] Preferably, support rods are integrally formed at the edge of the lower surface of the liquid-conducting layer, and a plurality of groups of support rods are evenly arranged. The outer surfaces of the support rods are coated with an oleophilic and hydrophobic layer.

[0019] Preferably, the oleophilic and hydrophobic layer is a fluorocarbon fiber layer, the outer surface of the oleophilic and hydrophobic layer is integrally formed with fluorocarbon fiber filaments, a plurality of groups of fluorocarbon fiber filaments are evenly arranged on the outer surface of the oleophilic and hydrophobic layer, and the oleophilic coating is a polypropylene coating.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By setting up an oily wastewater treatment equipment for ship repair composed of a treatment tank, a liquid discharge shaft, a liquid distribution member, a liquid guide layer and a liquid collection chamber, and by setting an oil guide pipe at the top position of the liquid distribution member, the oil body is allowed to float up along the oil guide pipe by utilizing the low density of the oil body, so that the oil body can pass through the oil guide pipe relatively closely, so that small particles of oil droplets can be better gathered into large oil droplets, so that the oil body in the oily wastewater can be better gathered together, so as to facilitate better separation of oil and water, and by setting up multiple liquid guide layers, the liquid guide layer can form a slight stirring effect on the oil and water, so that the floating efficiency of the oil body is faster, and the surface of the liquid guide layer is coated with an oleophilic coating, so that the liquid guide layer can absorb the fine oil droplets in the water body during the rotation process, and the edge of the liquid guide layer is arranged to be tilted upward, so that when the small oil droplets gather into larger oil droplets, the large oil droplets can slide and float up better along the liquid guide layer, and finally flow out from the oil guide pipe on the liquid distribution member, so as to further improve the effect of oil-water separation of the oily wastewater;

[0022] 2. By opening a positioning groove and a through hole on the side wall of the discharge shaft, and by opening a threaded hole on the mounting tube of the liquid guiding layer, and by providing a positioning member composed of a filter ball, a primary connecting shaft, a secondary connecting shaft and a tertiary connecting shaft, while positioning the liquid guiding layer through the positioning member, a certain degree of blocking effect can be formed on the oil body in the oil and water, so that the positioning member can position the liquid guiding layer while assisting in the separation of oil and water, thereby further improving the oil-water separation effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a half-section view of the present invention;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0026] Figure 4 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0027] Figure 5 A half-section view of the liquid distributing member of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the liquid discharge shaft of the present invention;

[0029] Figure 7 A half-section view of the liquid-conducting layer of the present invention;

[0030] Figure 8 for Figure 7 A magnified schematic diagram of the structure at C in the middle;

[0031] Fig. 9 for Figure 7 A magnified schematic diagram of the structure at D in the middle;

[0032] Fig.10 This is a schematic diagram of the positioning member structure of the present invention;

[0033] Fig.11 A half-section view of a filter ball according to the present invention;

[0034] Fig.12 for Fig.11 Enlarged schematic diagram of the structure at point E in the middle.

[0035] In the figure: processing tank 1, discharge shaft 2, liquid distribution part 3, liquid guide layer 4, liquid collecting chamber 5, primary support leg 6, base 7, liquid inlet 8, oil outlet 9, positioning groove 10, through hole 11, annular mounting seat 12, oil guide pipe 13, mounting pipe 14, threaded hole 15, positioning part 16, driven gear 17, motor mounting seat 18, reduction motor 19, transmission gear 20, filter ball 21, primary connecting shaft 22, secondary connecting shaft 23, tertiary connecting shaft 24, center hole 25, main filter hole 26, screw nut 27, support cone 28, secondary filter hole 29, hydrophilic and oleophobic layer 30, limit plate 31, guide protrusion 32, guide groove 33, support rod 34, oleophilic and hydrophobic layer 35, fluorocarbon fiber filament 36, sealing cover 37, transparent glass observation window 38, secondary support leg 39, drainage pipe 40, rubber sealing gasket 41. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 12 The present invention provides the following three preferred embodiments:

[0038] Embodiment 1: An oily wastewater treatment device for ship repair, comprising a treatment tank 1, a drainage shaft 2, a liquid distribution member 3, a liquid guide layer 4 and a liquid collecting chamber 5. The bottom surface of the treatment tank 1 is fixedly mounted on a base 7 through a primary support leg 6. A liquid inlet 8 is provided on the side wall of the treatment tank 1 near the middle, and the liquid inlet 8 is connected to the oily wastewater delivery pipeline. An oil outlet 9 is provided on the side wall near the upper end of the treatment tank 1, and the oil outlet 9 is connected to the oil drainage pipeline. The drainage shaft 2 is rotatably mounted on the bottom surface of the treatment tank 1 through a sealed bearing. The drainage shaft 2 is a circular tube structure with an upper end sealed, and a positioning groove is provided on the side wall of the drainage shaft 2. 10, a through hole 11 is provided at the bottom of the positioning groove 10, an annular mounting seat 12 is integrally formed on the inner wall of the processing tank 1, the liquid distribution part 3 is mounted on the annular mounting seat 12, and an oil guide pipe 13 is provided at the top position of the liquid distribution part 3, a mounting tube 14 is integrally formed at the center position of the liquid guide layer 4, the mounting tube 14 is sleeved and installed on the drainage shaft 2, and the liquid guide layer 4 is evenly spaced on the drainage shaft 2. The liquid collecting chamber 5 is fixedly mounted on the base 7 through the secondary supporting legs 39, and the liquid outlet of the liquid collecting chamber 5 is connected to the drainage pipe 40, and the upper end opening of the liquid collecting chamber 5 is located directly below the drainage shaft 2.

[0039] The liquid inlet 8 is arranged on the upper side of the liquid distribution part 3, the oil outlet 9 is arranged at a position higher than the port of the oil guide pipe 13, a sealing cover 37 is fixedly installed at the upper port of the processing tank 1, a transparent glass observation window 38 is arranged on the side wall of the processing tank 1, a liquid level sensor is arranged in the inner cavity of the processing tank 1, a motor mounting seat 18 is fixedly installed on the side wall of the liquid collecting chamber 5, a reduction motor 19 is fixedly installed on the motor mounting seat 18, a transmission gear 20 is fixedly installed on the output shaft of the reduction motor 19, a driven gear 17 is fixedly installed on the lower end of the discharge shaft 2, and the driven gear 17 is meshed with the transmission gear 20.

[0040] The liquid-conducting layer 4 is in a trumpet-shaped structure with an opening upward, and the surface of the liquid-conducting layer 4 is coated with an oleophilic coating. A threaded hole 15 is provided on the mounting tube 14, and the threaded hole 15 is arranged corresponding to the positioning groove 10, and a positioning member 16 is installed in the threaded hole 15, and the positioning member 16 has a filtering function. By setting an oily wastewater treatment equipment for ship repair composed of a processing tank 1, a liquid discharge shaft 2, a liquid distribution member 3, a liquid-conducting layer 4 and a liquid collecting chamber 5, and by setting an oil-conducting pipeline 13 at the top position of the liquid distribution member 3, the oil body is made use of the characteristic of the small density of the oil body to float along the oil-conducting pipeline 13, so that the oil body can pass through the oil-conducting pipeline 13 relatively close, so that small particles of oil droplets can be filtered out. The oil bodies in the oily wastewater are better aggregated into large oil droplets, so that the oil bodies are better aggregated together, which is convenient for better separation of oil and water. By setting a multi-layer liquid guiding layer 4, the liquid guiding layer 4 can form a slight stirring effect on the oil and water, so that the oil bodies can float more efficiently. The surface of the liquid guiding layer 4 is coated with an oleophilic coating, so that the liquid guiding layer 4 can adsorb the fine oil droplets in the water body during the rotation process. The edge of the liquid guiding layer 4 is tilted upward, so that when the small oil droplets gather into larger oil droplets, the large oil droplets can slide and float along the liquid guiding layer 4 better, and finally flow out from the oil guiding pipe 13 on the liquid distribution member 3, thereby further improving the effect of oil-water separation for the oily wastewater.

[0041] Embodiment 2: On the basis of embodiment 1, the positioning member 16 is composed of a filter ball 21, a primary connecting shaft 22, a secondary connecting shaft 23 and a tertiary connecting shaft 24. The filter ball 21, the primary connecting shaft 22, the secondary connecting shaft 23 and the tertiary connecting shaft 24 are integrally formed, and a center hole 25 is formed through the primary connecting shaft 22, the secondary connecting shaft 23 and the tertiary connecting shaft 24. The center hole 25 is connected to the inner cavity of the filter ball 21. A main filter hole 26 is formed on the side wall of the filter ball 21. A screw nut 27 is integrally formed on the outer side surface of the filter ball 21 in a direction opposite to the primary connecting shaft 22. The end face of the screw nut 27 is provided with an inner hexagonal wrench groove. The diameters of the primary connecting shaft 22, the secondary connecting shaft 23 and the tertiary connecting shaft 24 tend to decrease in sequence. The first-level connecting shaft 22 is provided with an external thread structure on its outer side wall, and the first-level connecting shaft 22 is screwed and installed in the threaded hole 15, and at this time, the second-level connecting shaft 23 is inserted and positioned in the positioning groove 10, by providing the positioning groove 10 and the through hole 11 on the side wall of the discharge shaft 2, and by providing the threaded hole 15 on the mounting tube 14 of the liquid guide layer 4, and by providing the positioning member 16 composed of the filter ball 21, the first-level connecting shaft 22, the second-level connecting shaft 23 and the tertiary connecting shaft 24, so that while the positioning member 16 is used to position the liquid guide layer 4, a certain degree of blocking effect can be formed on the oil body in the oil and water, so that the positioning member 16 can realize the positioning of the liquid guide layer 4, and can also assist in the separation of oil and water, thereby further improving the effect of the device on oil-water separation.

[0042] The third-stage connecting shaft 24 is sleeved with a rubber sealing gasket 41 . When the positioning member 16 is actually installed, the rubber sealing gasket 41 is in a compressed state. The rubber sealing gasket 41 can effectively improve the sealing performance at the connection position of the positioning member 16 .

[0043] A limiting plate 31 is integrally formed on the top side wall of the discharge shaft 2, and a guide protrusion 32 is integrally formed on the side wall of the discharge shaft 2. A guide groove 33 is opened on the side wall of the mounting tube 14, and the guide groove 33 is aligned with the guide protrusion 32. When the mounting tube 14 is actually installed, the guide groove 33 is sleeved on the guide protrusion 32, and the uppermost mounting tube 14 is in contact with the limiting plate 31, and adjacent mounting tubes 14 are in contact with each other. By arranging the limiting plate 31 at the top of the discharge shaft 2 and arranging the guide protrusion 32 on the side wall of the discharge shaft 2, it is convenient for the staff to pre-position the mounting tube 14, thereby facilitating the staff to align the positioning groove 10 and the threaded hole 15, thereby improving the installation convenience of the positioning member 16.

[0044] Embodiment 3: On the basis of embodiment 2, a support cone 28 is fixedly welded on the outer wall of the filter ball 21 at the position of the main filter hole 26. The support cone 28 is a hollow conical structure, and secondary filter holes 29 are evenly opened on the side wall of the support cone 28. The outer wall of the support cone 28 is covered with a hydrophilic and oleophobic layer 30. The setting of the support cone 28 can effectively increase the filtration area, thereby achieving the purpose of improving the filtration efficiency. In addition, the setting of the hydrophilic and oleophobic layer 30 can better block the oil body, thereby effectively reducing the oil content in the water body discharged by the device.

[0045] The hydrophilic and oleophobic layer 30 is a Miffy cloth layer.

[0046] The lower surface of the liquid-conducting layer 4 is integrally formed with support rods 34 near the edge. The support rods 34 are evenly arranged in multiple groups. The outer surfaces of the support rods 34 are coated with oleophilic and hydrophobic layers 35. The support rods 34 and the oleophilic and hydrophobic layers 35 on their outer surfaces can effectively increase the contact area between the water body and the oleophilic material, so that the oil molecules in the water body can be better adsorbed, thereby further improving the separation effect.

[0047] The oleophilic and hydrophobic layer 35 is a fluorocarbon fiber layer, and the outer surface of the oleophilic and hydrophobic layer 35 is integrally formed with fluorocarbon fiber filaments 36. A plurality of groups of fluorocarbon fiber filaments 36 are evenly arranged on the outer surface of the oleophilic and hydrophobic layer 35. The oleophilic coating is a polypropylene coating. The arrangement of the fluorocarbon fiber filaments 36 can further improve the separation effect of oil molecules in water.

[0048] Working principle: in actual use, the oily wastewater to be treated is transported to the inner cavity of the treatment tank 1 through the liquid inlet 8, and then the oily wastewater flows along the gap in the middle part of the liquid distribution part 3 to the lower side of the liquid distribution part 3. In this process, most of the oil enters the surface layer of the liquid, and a small part of the oil enters the lower side of the liquid distribution part 3, and then the oily wastewater enters the gap of the liquid guiding layer 4. When the oil in the oily wastewater contacts the surface of the liquid guiding layer 4, its oil molecules will be attracted by the liquid guiding layer 4 and re-aggregated into larger oil droplets, which will float upward again, and the water will pass through the through hole 11 on the drainage shaft 2, thereby flowing along the drainage shaft 2 to the liquid collecting chamber 5, and flow out through the drainage pipe 40 at the bottom of the liquid collecting chamber 5.

[0049] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. An oily wastewater treatment equipment for ship repair, characterized in that: include: A treatment tank (1), wherein the bottom surface of the treatment tank (1) is fixedly mounted on a base (7) via a primary support leg (6), a liquid inlet (8) is provided on a side wall near the middle of the treatment tank (1), the liquid inlet (8) is connected to an oily wastewater delivery pipeline, and an oil outlet (9) is provided on a side wall near the upper end of the treatment tank (1), the oil outlet (9) is connected to an oil discharge pipeline; A liquid discharge shaft (2), the liquid discharge shaft (2) being rotatably mounted on the bottom surface of the processing tank (1) via a sealed bearing, the liquid discharge shaft (2) being a round tube structure with a sealed upper end, and a positioning groove (10) being provided on the side wall of the liquid discharge shaft (2), and a through hole (11) being provided at the bottom of the positioning groove (10); A liquid distribution member (3), wherein an annular mounting seat (12) is integrally formed on the inner side wall of the processing tank (1), the liquid distribution member (3) is mounted on the annular mounting seat (12), and an oil guide pipe (13) is provided at the top of the liquid distribution member (3); A liquid-conducting layer (4), wherein a mounting tube (14) is integrally formed at the center of the liquid-conducting layer (4), the mounting tube (14) is sleeved and mounted on the liquid-discharging shaft (2), and the liquid-conducting layer (4) is provided with multiple layers at equal intervals on the liquid-discharging shaft (2); The liquid collecting chamber (5) is fixedly mounted on the base (7) via secondary supporting legs (39), and the liquid outlet of the liquid collecting chamber (5) is connected to a drainage pipe (40), and the upper end opening of the liquid collecting chamber (5) is located directly below the drainage shaft (2).

2. The oily wastewater treatment equipment for ship repair according to claim 1 is characterized by: The liquid inlet (8) is arranged at an upper side of the liquid distribution member (3), the oil outlet (9) is arranged at a position higher than the port of the oil guide pipe (13), a sealing cover (37) is fixedly installed at the upper port of the processing tank (1), a transparent glass observation window (38) is arranged on the side wall of the processing tank (1), a liquid level sensor is arranged in the inner cavity of the processing tank (1), a motor mounting seat (18) is fixedly installed on the side wall of the liquid collecting chamber (5), a reduction motor (19) is fixedly installed on the motor mounting seat (18), a transmission gear (20) is fixedly installed on the output shaft of the reduction motor (19), a driven gear (17) is fixedly installed on the lower end of the liquid discharge shaft (2), and the driven gear (17) is meshed with the transmission gear (20).

3. The oily wastewater treatment equipment for ship repair according to claim 1 is characterized by: The liquid-conducting layer (4) is in the form of a trumpet-shaped structure with an opening upward, and the surface of the liquid-conducting layer (4) is coated with an oleophilic coating. A threaded hole (15) is provided on the mounting tube (14), and the threaded hole (15) is arranged corresponding to the positioning groove (10). A positioning member (16) is installed in the threaded hole (15), and the positioning member (16) has a filtering function.

4. The oily wastewater treatment equipment for ship repair according to claim 3 is characterized by: The positioning member (16) is composed of a filter ball (21), a primary connecting shaft (22), a secondary connecting shaft (23) and a tertiary connecting shaft (24); the filter ball (21), the primary connecting shaft (22), the secondary connecting shaft (23) and the tertiary connecting shaft (24) are integrally formed, and a central hole (25) is formed through the primary connecting shaft (22), the secondary connecting shaft (23) and the tertiary connecting shaft (24); the central hole (25) is communicated with the inner cavity of the filter ball (21); and a main filter hole (26) is formed on the side wall of the filter ball (21). A screw nut (27) is integrally formed on the outer side surface of the filter ball (21) in a direction opposite to the primary connecting shaft (22), and an inner hexagonal wrench groove is provided on the end surface of the screw nut (27). The diameters of the primary connecting shaft (22), the secondary connecting shaft (23), and the tertiary connecting shaft (24) are arranged in a decreasing trend. An outer side wall of the primary connecting shaft (22) is provided with an external thread structure, and the primary connecting shaft (22) is screwed and installed in the threaded hole (15), and at this time, the secondary connecting shaft (23) is inserted and positioned in the positioning groove (10).

5. The oily wastewater treatment equipment for ship repair according to claim 4 is characterized by: The third-level connecting shaft (24) is sleeved with a rubber sealing gasket (41), and when the positioning member (16) is actually installed, the rubber sealing gasket (41) is in a compressed state.

6. The oily wastewater treatment equipment for ship repair according to claim 4 is characterized by: A limiting plate (31) is integrally formed on the top side wall of the liquid discharge shaft (2), and a guide protrusion (32) is integrally formed on the side wall of the liquid discharge shaft (2). A guide groove (33) is provided on the side wall of the mounting tube (14), and the guide groove (33) is arranged in alignment with the guide protrusion (32). When the mounting tube (14) is actually installed, the guide groove (33) is sleeved on the guide protrusion (32), and the uppermost mounting tube (14) is in contact with the limiting plate (31), and adjacent mounting tubes (14) are in contact with each other.

7. The oily wastewater treatment equipment for ship repair according to claim 4 is characterized by: A support cone (28) is fixedly welded on the outer wall of the filter ball (21) at the position of the main filter hole (26); the support cone (28) is a hollow conical structure, and secondary filter holes (29) are evenly arranged on the side wall of the support cone (28); the outer wall of the support cone (28) is covered with a hydrophilic and oleophobic layer (30).

8. The oily wastewater treatment equipment for ship repair according to claim 7 is characterized by: The hydrophilic and oleophobic layer (30) is a Miffy cloth layer.

9. The oily wastewater treatment equipment for ship repair according to claim 4 is characterized by: Support rods (34) are integrally formed at the edge of the lower surface of the liquid-conducting layer (4), and a plurality of groups of support rods (34) are evenly arranged. The outer surfaces of the support rods (34) are coated with an oleophilic and hydrophobic layer (35).

10. The oily wastewater treatment equipment for ship repair according to claim 9, characterized in that: The oleophilic and hydrophobic layer (35) is a fluorocarbon fiber layer, and the outer surface of the oleophilic and hydrophobic layer (35) is integrally formed with fluorocarbon fiber filaments (36), and a plurality of groups of fluorocarbon fiber filaments (36) are evenly arranged on the outer surface of the oleophilic and hydrophobic layer (35), and the oleophilic coating is a polypropylene coating.

Images