JPH0634792U - Floating oil suction nozzle and oil / water separation device using the same - Google Patents

Abstract

(57) [Summary] [Purpose] The conventional floating oil recovery method in an oil / water separation tank has a high water content of recovered oil and is troublesome both in manual recovery and in a float type suction nozzle equipped with a submersible pump. There was such a drawback. Further, the float type suction nozzle equipped with the submersible pump has a considerably large weight and capacity, which limits the usable range and makes mounting and maintenance considerably difficult. Solved these. [Structure] A portable tank 7 and a horizontal lipophilic rotary drum 8 arranged at a position where a part of it is immersed on the liquid level in the tank, a scraper 9, and a floating oil suction nozzle 1, and the portable tank connected thereto. An oil / water separator comprising a suction pump (10) for guiding oil / water into the tank.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a floating oil suction nozzle for highly efficiently recovering oil from water containing oil such as mineral oil, vegetable oil, and animal oil, and an oil / water separation device using the same.

[0002]

[Prior art]

 Conventionally, to collect oil floating on the surface layer of an oil / water separation tank, manually collect it with a ladle, or attach a submersible pump hose to a float type suction nozzle. It was collected by suction from.

[0003]

[Problems to be solved by the device]

 Although the floating oil recovery method in the conventional oil-water separation tank has been described above, in the conventional manual recovery, 80 to 90% of the surface oil is water when the surface oil is thin, and a float equipped with a submersible pump is used. 80-90% of the water was also collected by the suction nozzle, and the water content of the recovered oil was high, and it was troublesome. In addition, in the float type suction nozzle equipped with the submersible pump, if a pump, a motor and a float part for floating them are added, the structure becomes considerably large in weight and capacity, and the usable range is limited. At the same time, the installation work and maintenance were quite difficult.

[0004]

[Means for Solving the Problems]

 In order to solve these conventional problems, we have developed a new floating oil suction nozzle and oil-water separator. The floating oil suction nozzle is provided with a float 2 and weight 3 attachment device for the oil suction nozzle 1 that floats on the surface layer of water so that the position of the suction nozzle on the water surface can be adjusted.

Further, the float 2 is provided on both sides of the suction nozzle 1, and the weight 3 is attached to the reducer 4 or the reducer positioned below the water surface of the suction nozzle, and the hose connected to the suction nozzle is set to a dimension length larger than the suction nozzle width. 5 is a floating oil suction nozzle in which a priming hole 6 is provided.

The oil-water separation device using such a floating oil suction nozzle comprises a portable tank 7, a horizontal lipophilic rotary drum 8 arranged at a position where a part of the oil is immersed on the liquid level in the tank, and a scraper. 9 and the floating oil suction nozzle 1 and a suction pump 10 connected to the floating oil suction nozzle 1 to guide oil water into the portable tank.

[0007]

[Action]

 With such a structure, the floating oil suction nozzle 1 is made lightweight with a synthetic resin plate such as a vinyl chloride resin plate, and a weight mounting device is provided under this to adjust the water level of the entire nozzle. You can Further, by setting the center position of this weight attaching device to a dimension length equal to or larger than the length of the underwater width of the float portion, the stability of the surface oil floating oil suction of the floating oil suction nozzle 1 could be improved and solved. Further, by providing the priming hole 6 in a part of the suction reducer or the hose located under the water surface of the float type nozzle, it is possible to obtain the action of preventing the float type nozzle from floating at the time of startup.

In the oil-water separation device of the present invention, when the floating oil suction nozzle 1 tries to suck the water containing oil by the suction pump 10, the oil is constantly transferred from the nozzle 1 whose water level is adjusted efficiently. Sent in. Then, the sucked oil and water in the surface layer enter the water tank, and then the oil is floated on the surface to form a layer. When the lipophilic rotary drum is rotated in this state, the oil on the surface layer adheres to the lipophilic synthetic resin on the drum surface and is scraped off by the scraper 9 and collected.

[0009]

【Example】

 Embodiment 1 FIG. 1 is a sectional view of a floating oil suction nozzle according to a first embodiment of the present invention. As a float plate for the floating oil suction nozzle, a hard vinyl chloride resin plate having a diameter of 350 mm and a thickness of 4 mm and a hole of 60 mmφ at the center and three holes of 112 mmφ evenly formed around the hole were prepared. A hard vinyl chloride pipe with an outer diameter of 112 mmφ and a wall thickness of 4 mm was cut into a length of 111 mm, and a hard vinyl chloride resin plate with a thickness of 4 mm was cut on both sides of the cut to the same cross section. Create a float of the length, and weld it to the 112mmφ hole of the float plate at the position of 59mm on the upper side and 56mm on the lower side, and attach 3 floats 2 as shown in the lower right of Fig. 3. I installed it.

Next, a cured vinyl chloride resin reducer 4 having an inner diameter of 60 mmφ on one side and an inner diameter of 25 mmφ on the other side having a length of 100 mm was attached to the center of the float plate at the bottom of a hole of 60 mmφ by a PVC welding method. In the same way, attach a hard vinyl chloride resin cheese with an inner diameter of 25 mmφ and a length of 100 mm to the lower portion (inner diameter 25 mmφ side), and perform PVC welding on the lower portion using a hard vinyl chloride resin plate of the same size. , Created a suction nozzle.

In order to adjust the position of the surface of the suction nozzle floating on the water surface, a 5 g iron hook (screw-in type) 12 was attached to the bottom of the suction nozzle so that the weight 3 could be attached. When this suction nozzle was floated in a water tank with a depth of 1 m, the upper part of the float plate floated to the same level as the water surface. If a weight of 500 g is attached to the lower part in this state, the upper position of the float plate sinks to 5 mm below the water level and becomes stable, and if a weight of 500 g is further added, the upper position of the float plate sinks to 10 mm below the water level and becomes stable. It became.

In this state, when a hose of a self-contained pump was attached to the cheese portion below the reducer to perform suction, both with a 500 g iron weight attached and with a 1,000 g iron weight attached, The water on the surface of the water surface could be sucked. Also, when 1,000 cc of engine oil (for small passenger cars) was floated on the surface of the water and suctioned, almost all the oil on the surface layer could be sucked in 5 minutes.

Regarding the method of attaching the weight, comparing the case where a weight of 1,000 g is attached directly under the iron hook and the case where a weight of 1,000 g is attached 150 mm below the iron hook with a string, The stability of the suction nozzle (when waves occur or when the hose moves when the self-contained pump starts and stops) is better when a weight of 1,000 g is attached 150 mm below the iron hook with a string. , It was found to be much more stable.

Embodiment 2 FIG. 2 is a sectional view of a second embodiment of the present invention. One with a 5 mmφ priming hole 6 provided in the center of the reducer 4 of the suction nozzle in which the weight 3 of 1,000 g was attached 150 mm below the iron hook 12 made in the same manner as in Example 1, cheese. One with a 5 mmφ priming hole 6 in the center, one with a 5 mmφ priming hole 6 near the cheese mounting of the self-contained pump hose, and one without a priming hole As a result of evaluating the stability of the suction nozzle in the water tank at the time of starting the self-contained pump, the one with the 5 mmφ priming hole 6 showed no lifting phenomenon of the suction nozzle at the start of the self-contained pump. It turns out that it does not occur. For those without holes, the suction nozzle floated above the water surface immediately after startup, making it difficult to efficiently collect surface oil.

Example 3 As shown in FIG. 3, a side surface height of 1,000 mmW × 1,000 mmL × 1,150 mmH of a portable tank 7 made of iron, at a position of 1,000 mm, 50 mmφ for taking out overflow water from the bottom of the water tank, An L-shaped pipe with a length of 900 mm was attached, and an overflow pipe 11 with a vinyl chloride hose attached to the outside was attached to the oil / water separation tank. To the upper part of the portable tank 7, the both ends of the shaft of 400 mmφ × 300 mm width drum are fixed to the tank by bearings so that the rotating drum 8 coated with lipophilic synthetic resin is attached to the bottom of the water surface. did. A gear was attached to one side of the shaft of the drum 8, and the geared motor 12 was set to drive the chain to reach 9 rpm. A rubber scraper 9 was attached to one side of the drum, and a discharge hose 13 was attached so that the drum could be discharged to the outside by gravity fall. On the discharge side of the self-contained suction pump 10 installed beside the water tank, a hose was attached to the water tank, and the suction side hose 14 was attached to the suction nozzle 1 shown in Examples 1 and 2 and floated in the oil / water separation tank 15.

The self-contained suction pump 10 was activated to fill the portable tank 7 with water, and the natural overflow state from the overflow pipe 11 was maintained. After the oil and water in the surface layer sucked from the oil / water separation tank 15 entered the water tank, the oil content floated to the surface layer to form a layer. When the geared motor 12 was rotated in this state, the oil on the surface layer adhered to the lipophilic synthetic resin on the surface of the drum 8, was scraped off by the scraper 9 and spontaneously dropped, and was collected from the attached discharge hose 13. Most of the oil that floated in the oil-water separation tank 15 (1.5 m × 1.5 m) with the suction nozzle 1 floated was collected in the portable tank 7 in 30 minutes, and the collection from the portable tank 7 was almost completed in 60 minutes. The recovered amount was 30 liters.

[0017]

[Effect of device]

 The present invention enables highly efficient recovery of oil from water containing oil such as mineral oil, vegetable oil, and animal oil. The device of the present invention can have a water content of recovered oil of 10% or less, and a large amount of recovered oil per hour. In addition, labor can be saved, and the installation location can be moved as required. It can be used in any oil-water separation tank, and it is also possible to recover oil constantly in response to vertical fluctuations in water level.

[Brief description of drawings]

FIG. 1 is a sectional view of a floating oil suction nozzle according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a floating oil suction nozzle according to a second embodiment of the present invention.

FIG. 3 is a perspective view of an oil / water separator using the floating oil suction nozzle of the present invention.

[Explanation of symbols]

 1 Suction Nozzle 2 Float 3 Weight 4 Reducer 5 Hose 6 Respiratory Hole 7 Portable Tank 8 Lipophilic Rotating Drum 9 Scraper 10 Suction Pump 11 Overflow Pipe 12 Geared Motor 13 Discharge Hose 14 Suction Side Hose 15 Oil Water Separation Tank

Claims (3)

[Scope of utility model registration request] 1. A floating oil suction nozzle in which a float 2 and weight 3 attachment device is provided for an oil suction nozzle 1 that floats on the surface of water so that the suction nozzle position can be adjusted. 2. A hose that is provided on both sides of a suction nozzle 1, a weight 3 is attached to a position where the weight 3 is larger than the width of the suction nozzle, and is connected to a reducer 4 or a reducer located below the water surface of the suction nozzle. The floating oil suction nozzle according to claim 1, wherein a hole 6 for priming water is provided for the nozzle 5. 3. A portable tank 7, a horizontal lipophilic rotary drum 8 arranged at a position where a part thereof is immersed in the liquid surface in the tank, a scraper 9, and a floating oil suction nozzle 1 according to claim 1.
An oil / water separator comprising: a suction pump (10) connected to the suction pump (10) for guiding the oil / water into the portable tank.