JPS6314677B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a pre-treatment device for a marine oil/water separator that reduces the load on the oil/water separator already installed in the engine room of the vessel. .

(Prior technology) The oily water that accumulates in the engine room due to water leakage from various parts of the ship's hull or engine oil flowing out from the engine part is called a bilge.These bilges are separated into oily content and water, and only the separated water is collected. Strict discharge standards have been established to ensure that there is no risk of sewage pollution occurring when discharging and dumping overboard, and in order to comply with these discharge standards, each ship is equipped with an oil-water separator. Then perform oil and water separation,
The separated water is discharged and dumped, and the oily content is incinerated or recovered and reused.

(Problems to be Solved by the Invention) However, in the conventional oil-water separator described above, when the concentration of oily components is high, the load is too high.
There was a problem in that it was very difficult to obtain water separated from oily substances that satisfactorily complied with discharge standards.

(Means for Solving the Problems) The present invention has been made by focusing on the above-mentioned conventional problems, and is designed to remove most of the oily content in advance and remove other oily water before oil-water separation work using an oil-water separator. The purpose of the present invention is to reduce the burden on the separator by sending it to the separator, thereby solving the above-mentioned problems.

In order to achieve the above object, the present invention pivots the movable holding part 32 on the fixed holding part 26 so as to be able to rotate toward and away from the fixed holding part 26, and also attaches the protruding chamber 29 on the fixed holding part 26 in a detachable manner. forming and protruding chamber 29
The bilge flow down means 22 is formed by providing an injection nozzle 38 and an inclined plate 40 for causing the bilge discharged from the discharge pipe 37 to flow down, and the fixed holding part 26 and the movable holding part 32 have lipophilicity and water repellency. Endless oily adsorption filter 47 made of material
is wound around the three rotating rollers 42, 43, 44 and the upper squeezing roller 45 so as to be rotatable, and a filter winding adjustment means 48 is attached to one rotating roller 44, and the filter winding adjustment means 48 is attached to one rotating roller 44, The oil-water separating means 23 formed by attaching the squeezing pressure adjusting means 67 to the lower squeezing roller 46 in pressure contact with the lower squeezing roller 45 are respectively held and attached to the holder 24, and the holder 24 is connected to the oil fractionation chamber 5 and the water reservoir chamber. Squeezing rollers 45, 46 are placed on the opening 1 of the separation tank 2 divided into 6 and 6 parts.
The device is removably fixed so that it is located above the oil fractionation chamber 5, while a heater 93 is fixedly installed below the oil fractionation chamber 5, and a valve is attached to the side wall 86 facing the heater 93. A receiving tray 91 is fixed to the bottom surface of the recovery pipe 90 to which a transfer pipe 92 for transferring the oil to the bilge layer is connected, and a pipe 88 is connected to the side wall 86 above the recovery pipe 90 and communicates with the bilge oil tank 87. , and furthermore, floating openings 16 are provided at the top and bottom of the water storage chamber 6, respectively.
A shielding plate 18 provided with an inflow opening 17 is fixedly installed at an angle, and a water inflow chamber 8 provided with a bent inlet 15 is fixedly installed on the side wall 7 of the water reservoir chamber 6, and the side wall of the water inflow chamber 8 is A water test chamber 10 having an inlet 19 is fixedly installed at 9, and the water test chamber 10 is connected to a separated water tank 21 via a pipe 20.
and an oil/water separator 96 are connected via a pipe 95.

(Operation) The operation of the present invention configured as described above is as follows.

When the bilge 36 accumulated in the engine room is injected from the injection nozzle 38 toward the inclined plate 40 via the pump 35, the bilge is guided to the inclined plate 40, and the filter winding adjustment means 48 moves the bilge to the oily content adsorption filter. The tension of the filter 47 is adjusted as appropriate and the water falls onto the rotating oily content adsorption filter 47, and only the oily content is adsorbed by the oily content adsorption filter 47, and the unadsorbed water falls into the water reservoir chamber 6, and the oily The oil content adsorbed on the absorption filter 47 is squeezed by the squeezing rollers 45 and 46 whose squeezing pressure is adjusted by the squeezing adjustment means 67, and the oily content is squeezed into the oily fractionation chamber 5.
to fall. Among the oily fractions that have fallen into the oily distillation chamber 5, the sludge containing water with high viscosity accumulates below, but the oily fraction with low viscosity has high fluidity and is therefore collected on the side wall 8.
6 flows into the bilge oil tank 87 through a pipe 88, and the sludge containing high viscosity water collected at the bottom is heated by a heater 93 and separated into oily content and water. Open the valve 89 to allow only the water with heavy specific gravity to fall from the collection pipe 90 onto the tray 91, visually check it to confirm that it is only water, and return it to the bilge 36 layer in the engine room via the transfer pipe 92. will be forwarded to.

In addition, the water that was not adsorbed by the oily content adsorption filter 47 and a very small amount of oily content accumulate in the water reservoir chamber 6, and due to the difference in specific gravity between water and oil in the water reservoir chamber 6, the oily content rises above the water. However, the water containing the oil film sinks with the water, and the water containing the oil film flows into the water inflow chamber 8 from the inlet opening 17 below the shielding plate 18 through the bent inlet 15.
The water flowing in from the inflow opening 17 on the lower surface of the shielding plate 18 has a faster flow velocity at the lower surface of the shielding plate 18, and the water flows into the lower surface of the shielding plate 18.
8 becomes an upward water flow, and during this time, the oily content of the oil film portion separates from the water, rises through the floating opening 17, and floats on the water surface. Then, the floating oily matter is removed by loosening the tension of the oily matter adsorption filter 47 via the filter winding adjustment means 48, allowing the oily matter adsorption filter 47 to drip onto the water surface to adsorb the oily matter, and then winding the filter again. Adjustment means 4
8, an oily content adsorption filter 47 is applied, and the oily content is collected through squeezing rollers 45 and 46. The water separated from the oily content in the water reservoir chamber 6 is removed by the shielding plate 18.
Bent inlet 15 below the inlet opening 17 on the lower surface
It flows into the water reservoir chamber 8 through the inlet 19, and further flows into the water test chamber 10 through the inlet 19, and from there the pipe 2.
0 into the separated water tank 21.

The water flowing into the separation tank 21 via the pipe 20 is transferred from the separation water tank 21 to the pipe 9.
5, the water is sent to the existing oil-water separator 96 in the engine room by a pump 94 for oil-water separation, and the separated water is discharged and dumped from a discharge pipe 97 to an overboard 98. 99 to the bilge oil tank 87.

In addition, the bilge flow down means 22 and the oil/water separation means 23
Since the holding body 24 equipped with each of these is detachable from the separation tank 2, an unnecessary tank already installed on the hull can be modified to form the separation tank 2, and the holding body 24 portion can be placed and fixed. In addition, the oil-based adsorption filter 47 can be replaced by lifting the holder 24 with a crane or the like and removing it from the separation tank 2.
Remove the protruding chamber 2 on the fixed holding part 26.
9 is removed, the movable holding part 32 is rotated upward via the shaft 30 and rotated halfway onto the fixed holding part 26, and the old oily content adsorption filter 47 is replaced with a new one.

(Example) To explain an example of the implementation of the present invention in detail with reference to the drawings, a height up to near the center of the separation tank 2 is placed on the bottom plate 3 of the separation tank 2 having the opening 1 above. A partition wall 4 is installed, and the partition wall 4 partitions the inside of the separation tank 2 into an oil fractionation chamber 5 and a water reservoir chamber 6. A water inflow chamber 8 is attached to the side wall 7 on the base end side of the separation tank 2, and a water test chamber 10 is attached to the middle part of the side wall 9 of the water inflow chamber 8.
Monitoring lids 11 and 12 are provided above the water inspection chamber 10 so as to be openable and closable, respectively, for visually observing the state of separation of oil and water. The water reservoir chamber 6 and the water inflow chamber 8 have an opening 13 provided at the lower part of the side wall 7, and an opening 1 planted on the bottom plate 2 slightly further forward than the opening 13.
3 and a partition plate 14 which is slightly higher than 3, and a bent inlet 15 configured with a partition plate 14 which is slightly higher than the partition plate 14. Further, above the partition plate 14, a floating opening 16 is provided at the upper part and a floating opening 16 is provided at the lower part at a distance from the partition plate 14. A shielding plate 18 provided with an inlet opening 17 is fixedly installed at an angle, so that the water in the water reservoir chamber 6 is immediately transferred from the bent inlet 15 to the water inlet chamber 8.
When water is allowed to flow in from the lower inflow opening 17 without flowing into the water, the flow speed increases at the lower surface of the shielding plate 18, and the water flows upward along the shielding plate 18. During this time, the oil film contained in the water is removed. The structure is such that the oily components such as the above are separated from the water, rise through the floating opening 16, and float on the water surface. Further, the water inlet chamber 8 and the water test chamber 10 are communicated with each other through an inlet 19 provided in the side wall 9, and the water test chamber 10 is connected to a separated water tank 21 via a pipe 20.

A bilge flow down means 22 is provided at the opening 1 of the separation tank 2.
A holder 24 holding and mounting an oil-water separating means 23 therein is removably fixed to the apparatus. The holder 24 has a lower surface above the base end of a fixed holder 26 formed by arranging two oblong side plates 25 in parallel at a predetermined interval and having a width that can be inserted into the opening 1 of the separation tank 2. A projecting chamber 29 having openings 27 and 28, respectively, is removably provided at the front end thereof, and a shaft 30 provided on the front end edge of the fixed holding part 26 is spaced at the same distance as the fixed holding part 26. 2 vertical side plates 3
The proximal end side of the movable holding part 32 formed by arranging the two movable holding parts 1 in parallel is pivotally supported, so that the movable holding part 32 can freely move toward and away from the front end edge of the fixed holding part 26 using the shaft 30 as a fulcrum. It is formed in this way. The holding body 24 having the above structure is fixed by means of bolts or the like, with the locking pieces 33 protruding from both outer sides of the fixed holding part 26 being hooked to the holding pieces 34 protruding from the upper periphery of both sides of the separation tank 2. The holder 24 is integrated with the separation tank 2, and can be removed from the separation tank 2 by removing bolts or the like.

The bilge flow down means 22 is installed in a protruding chamber 29 at the base end of the holder 24 . That is, the protrusion chamber 2
A discharge pipe 37 for suctioning bilge 36 accumulated in the engine room through a pump 35 and discharging it into the ejection chamber 29 is fixedly penetrated in the ejection chamber 9, and an injection nozzle is installed in the center of the discharge pipe 37 inside the ejection chamber 29. 38 are connected and fixed to the side wall 39 of the protruding chamber 29 so as to face an inclined plate 40 fixed to the side wall 39 so as to be inclined toward the opening 27, and each of the inclined plates 40 has an inwardly narrowing plate. The bilge 36 sprayed toward the inclined plate 40 by the injection nozzle 38 flows down on the inclined plate 40, and is guided by the guide wall 41 to direct the flow to the center. The bilge flow down means 22 is formed in such a way that the flow is concentrated toward the side and flows down toward the opening 27.

The oil/water separation means 23 is arranged along the longitudinal direction inside the holding body 24. That is, rotary rollers 42 and 43 are rotatably supported on the horizontally long side plates 25 of the fixed holding part 26 below the inclined plate 40 in two stages, spaced apart from each other, and further located on the forward side of the partition wall 4. A rotating roller 44 is rotatably supported at a position slightly below the rotating roller 42, and two squeezing rollers 45 and 46 are rotatably supported below the rotating roller 44. An endless oil adsorption filter 47 made of a material having lipophilic and water repellent properties, such as polypropylene, is inserted between the squeezing rollers 45 and 46, and each rotating roller 43, 42, 4
4, and the oily content adsorption filter 47 is connected to each rotating roller 42, 43, 44 by a drive source (not shown).
By rotating the squeezing rollers 45 and 46, it is made rotatable. At this time, since the rotating roller 44 is located at a lower position than the rotating roller 42, the oily content adsorption filter 47 rotates in an oblique state with the front side being lower.

The rotary roller 44 is provided with a filter winding adjusting means 4 for adjusting the tension of the oily content adsorption filter 47.
It is recommended to install 8. Although this filter winding adjustment means 48 does not need to be particularly limited,
For example, it is preferable to have a configuration as shown in FIGS. 6 and 7. To explain this in detail, the shaft 50 of the rotating roller 44 is inserted into and protrudes through the horizontally long holes 49 formed in both vertically long side plates 31 of the movable holding part 32, and the shaft 50 is moved forward and backward along each horizontally long hole 49. Bearing fittings 51 are fixed to the ends of shafts 50 which are movable and protrude outside of each vertically long side plate 31 through bearings 52, and guide protrusions 53 projecting from the top and bottom of the bearing fittings 51 are attached to each vertically long side plate. The guide protrusions 53 are formed so that they can be fitted into grooves 55 of guide plates 54 protruding from and opposite to the guide plates 31, and can slide using the grooves 55 as guides. Further, a square hole 56 is bored on the inner side of the bearing fitting 51, and the square hole 56
A through hole 58 is provided horizontally in the small wall portion 57 at the front of the guide plate 54, and a long nut 59 is fixed in the through hole 58, and a bearing plate 60 is fixed in the front end edge of the guide plate 54. A through hole 61 is bored in the bearing plate 60 and a nut 62 is fixed to the tip edge thereof, while the head 63 is inserted into the square hole 56.
The long adjustment screw 64 located inside is loosely inserted into the through hole 58 and screwed into the long nut 59, and then loosely inserted into the through hole 61 and screwed into the nut 62 to be freely rotatable. By rotating the adjusting screw 64 in the direction of the
presses the base end surface 65 of the square hole 56, and moves the guide protrusion 53 along the groove 55, thereby moving the bearing fitting 51 toward the base end side. 50 to oblong hole 49
By moving the shaft 50 of the rotary roller 44 toward the proximal end along the axis and stopping the rotation of the adjustment screw 64, the shaft 50 of the rotary roller 44 stops moving and is fixed at that position. vice versa,
By rotating the long adjustment screw 64 counterclockwise, the long adjustment screw 64 moves to the front side and the head 6
3 presses the distal end surface 66 of the square hole 56, and moves the guide protrusion 53 along the groove 55 to move the bearing fitting 51 toward the front side,
This allows the shaft 50 of the rotating roller 44 to be
9 toward the front part side, and remove the long adjustment screw 64.
By stopping the rotation, the shaft 50 of the rotary roller 44 stops moving and is fixed at that position.

Further, it is recommended that a squeezing pressure adjusting means 67 for adjusting the squeezing pressure applied to the oily content adsorption filter 47 be attached to the lower squeezing roller 46.
This squeeze pressure adjusting means 67 does not need to be particularly limited, but it is preferable to have a configuration as shown in FIGS. 8 and 9, for example. To explain this in detail, the shaft 69 of the squeezing roller 46 is inserted into and protrudes through the vertical holes 68 formed in each vertically long side plate 31 of the movable holding part 32, and the shaft 69 is inserted along each vertically long hole 68. A bearing fitting 70 is attached to the end of the shaft 69, which is movable up and down and protrudes outside of each vertically long side plate 31.
The guide protrusions 72 protruding from both sides of the bearing fitting 70 are fitted into the grooves 74 of the guide plates 73 which are protruded from the longitudinal side plates 31, respectively. Guide protrusion 72 using groove 74 as a guide
It is formed so that it can slide. Further, a square hole 75 is formed in the lower side of the bearing fitting 70, a through hole 77 is formed in the small wall 76 below the square hole 75, and a box-shaped hole is formed in the lower edge of each guide plate 73. A bearing plate 78 is fixedly installed, and a screw hole 79 is formed in the bearing plate 78.
A screw rod 81 having a hollow portion 80 is screwed into the screw hole 79, and the shaft rod 83, whose head 82 is positioned in the square hole 75, is inserted into the through hole 77 and penetrates the hollow portion 80. A coil spring 84 is wound around the shaft rod 83 between the small wall portion 76 and the screw rod 81, and the coil spring 84 is compressed by clockwise rotation of the screw rod 81. Guide projection 7
2 along the concave groove 74 and press the bearing fitting 70 upward to bring the lower squeezing roller 46 into pressure contact with the upper squeezing roller 45 to increase the squeezing pressure. By rotating the coil spring 84, the compression of the coil spring 84 is released.
The upper squeeze roller 4 of the lower squeeze roller 46
5 to reduce the squeezing pressure.

The filter winding adjustment means 48 and the squeeze pressure adjustment means 66 can be operated even if the holder 24 is fixed on the separation tank 2, the filter winding adjustment means 48 is located above the separation tank 2. , and a squeezing pressure adjusting means 6 located inside the separation tank 2.
6 are made possible by operating openings 85 formed in the separation tank 2.

Further, a side wall 86 on the forward side facing the oil fractionation chamber 5
A pipe 88 that communicates with the bilge oil tank 87 is connected to the upper part of the lower surface of the side wall 86 , and a recovery pipe 90 that is opened downward with a valve 89 attached to the lower end of the side wall 86 is connected to the recovery pipe 90 .
A receiving tray 91 is installed below, and a delivery pipe 92 is connected to the receiving tray 91 for returning the oil to the bilge 36 layer accumulated in the engine room, and further faces the recovery pipe 90 on the bottom plate 3 of the oil fractionation chamber 5. A heater 93 is fixed at the position. The separated water tank 21 is connected to an existing oil-water separator 96 in the engine room via a pipe 95 equipped with a pump 94, and the water separated by the oil-water separator 96 is discharged from a discharge pipe 97 to the outside 98. The oily components that have been dumped and separated are collected into the bilge oil tank 87 via a pipe 99. In the figure, 100 is a valve that is opened and closed as necessary, and 101 is a draining pot provided in the processing tank 2, which is used when cleaning the processing tank 2.

(Effects of the Invention) Since the present invention is as described above, most of the oily content of the bilge in the engine room is adsorbed by the oily content adsorption filter 47 and separated into oily content and water.
The separated oily components flow into the bilge oil tank 87 via the oily distillation chamber 5, and the separated water, excluding the oily components suspended in the water, flows into the water reservoir chamber 6 and the water inflow chamber 8.
The water flows into the separated water tank 21 via the water inspection chamber 10, and only the water that has flowed into the separated water tank 21 is sent to the existing oil-water separator 96 for oil-water separation, which places a high load on the oil-water separator 96. Therefore, the separation rate is good, and the oil/water separator 96 can be used for a long period of time. Furthermore, bilge flow down means 22,
Since the holder 24 holding the oil-water separation means 23 is detachable from the separation tank 2, only the holder 24 is manufactured, and an existing unused tank is modified to create the separation tank 2. Holder 2 on top
4 can be placed and fixed, the old tank can be used effectively, and the oily content adsorption filter 47 can be replaced very easily.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, and Fig. 1 is a schematic explanatory view of the whole partially shown in cross section, Fig. 2 is a longitudinal sectional front view of the main part, and Fig. 3 is a cross-sectional plan view thereof , FIG. 4 is a longitudinal sectional side view of the same, FIG. 5 is a longitudinal sectional view showing the bilge flow down means, filter winding adjustment means, and throttle pressure adjustment means attached to the holding body, and FIG. 6 is the filter winding adjustment means. 7 is a longitudinal sectional front view of the same, FIG. 8 is a longitudinal sectional front view of the squeeze pressure adjusting means, and FIG. 9 is a sectional plan view of the same. In the figure, 1 is an opening, 2 is a separation tank, 5 is an oil distillation chamber, 6 is a water storage chamber, 7 is a side wall, 8 is a water inlet chamber, 9 is a side wall, 10 is a water test chamber, and 15 is a bent inlet , 16 is a floating opening, 17 is an inflow opening, 18 is a shielding plate,
19 is an inlet, 20 is a pipe, 21 is a separated water tank, 22 is a bilge flow down means, 23 is an oil/water separating means, 24 is a holding body, 26 is a fixed holding part, 29 is a protruding chamber, 32 is a movable holding part, 37 38 is a discharge pipe, 38 is an injection nozzle, 40 is an inclined plate, 42, 43, 44 are rotating rollers, 45, 56 are squeezing rollers, 47 is an oily content adsorption filter, 48 is a filter winding adjustment means, 67 is a squeezing pressure adjustment means, 86 is a side wall;
87 is the bilge oil tank, 88 is the pipe, 90
91 is a collection pipe, 91 is a receiving tray, 92 is a delivery pipe, 93 is a heater, 95 is a pipe, and 96 is an oil-water separator.

Claims (1)

[Claims] 1. A movable holding part is rotatably supported on a fixed holding part, and a protruding chamber is removably attached to the fixed holding part to form a holding body, and a bilge for discharging from a discharge pipe is provided in the protruding chamber. A bilge flow down means formed by providing an injection nozzle and an inclined plate to cause the flow to flow down, and an endless oil adsorption filter made of a material having lipophilicity and water repellency over the fixed holding part and the movable holding part. The filter is wound around two rotating rollers and an upper squeezing roller so as to be freely rotatable, and a filter winding adjustment means is attached to one rotating roller.
Furthermore, an oil/water separating means formed by attaching a squeezing pressure adjusting means to a lower squeezing roller that is in pressure contact with the upper squeezing roller is held and attached to a holding body, respectively, and the holding body is connected to an oil fractionation chamber and a water reservoir chamber. The device is removably fixed to the opening of the separated separation tank so that the squeezing roller is positioned above the oil fractionation chamber, while a heater is fixedly installed below the oil fractionation chamber, and the side wall facing the heater is fixed. A recovery pipe equipped with a valve is connected to the bottom of the recovery pipe, and a receiving tray connected to a transfer pipe for sending the oil to the bilge layer is fixed on the bottom surface of the recovery pipe, and a pipe communicating with the bilge oil tank is connected to the side wall above the recovery pipe. Further, a shielding plate having a floating opening and an inflow opening at the top and bottom of the water storage chamber is installed at an angle, and a water inflow chamber with a bent inlet is installed on the side wall of the water storage chamber, and A water testing chamber with an inlet provided in the side wall of the water inflow chamber is fixedly installed, the water testing chamber is connected to a separated water tank via a pipe, and the separated water tank and an oil-water separator are further connected via a pipe. A pretreatment device for a marine oil/water separator, characterized in that the oil and water separators are connected together.