JPH105754A - Structure of recovery part for floating oil and the like in oil recovery/separation mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely recover floating oil, scum and the like in a liquid layer. SOLUTION: In a liquid layer in which scum and solid impurities such as miscellaneous matter are mixed in oil and which float, a recovery part 4 equipped with an inflow port 3 for recovering oil and solid impurities is installed, and to the recovery part 4, floats 8 for holding the inflow port 3 near the surface of the liquid are fitted. The inflow port 3 is formed of plural oblong holes 3a derived radially from the central part, and the rear ends of the oblong holes are connected with each other. And at a position facing the inflow port 3, a raking blade moving along the surface of the liquid is installed, and furthermore. Between the adjacent sides of the oblong holes, V-shaped engagement pieces 14 are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for recovering floating oil and the like in an oil recovery and separation mechanism for reliably recovering floating oil and solid impurities.

[0002]

2. Description of the Related Art The structure of a recovery unit for floating oil or the like in an oil recovery / separation mechanism is, for example, provided in a liquid layer in which solid impurities such as scum and miscellaneous substances are mixed in oil and floated, and float at the upper end 2. Description of the Related Art There is known a recovery section in which a pipe having an inlet for oil, solid impurities, or the like is provided, and a float for holding the inlet near the liquid surface is attached to the pipe.

[0003]

However, in such a collecting section, since the inflow port is circular, it is not possible to reliably collect floating oil, solid impurities, and the like. The oil was trapped on the upper surface of the inflow port, preventing the oil from overflowing.

Further, if the inlet has a circular shape as described above, even if a scraping blade is provided at a position facing the inlet, for example, the scum and other foreign matters collected by the scraping blade are provided. Solid impurities, such as, are dislodged and escape along the outer periphery of the inlet, and cannot be guided into the inlet.

The present invention has been made to solve such a problem, and in particular, to propose a structure for collecting a floating oil or the like in an oil recovery / separation mechanism capable of reliably collecting the floating oil or scum in a liquid layer. The subject.

[0006]

Means for Solving the Problems As means for solving the above-mentioned problems, the invention of claim 1 according to the present invention is directed to a liquid layer in which solid impurities such as scum and miscellaneous substances are mixed in oil and are suspended. A recovery section having an inlet for recovering the oil and solid impurities is provided therein, and a float for holding the inlet near the liquid surface is attached to the recovery section, Is characterized by being formed by a plurality of elongated holes radially derived from the center portion, and the rear ends of the elongated holes are connected to each other.

The invention according to claim 2 further comprises an inlet for recovering the oil and solid impurities in a liquid layer in which solid impurities such as scum and miscellaneous substances are mixed in the oil and floats. A collecting part provided with a float for holding the inflow port near the liquid surface, the inflow port is formed by a plurality of elongated holes radially derived from a central portion, and At a position facing the inlet, a scraping blade moving along the liquid surface is provided.

[0008] Further, according to the invention of claim 3, scum is added to the oil,
In the liquid layer where solid impurities such as miscellaneous substances are mixed and floating,
A collecting section having an inlet for collecting the oil and solid impurities is provided, and a float for holding the inlet near the liquid level is attached to the collecting section, while the inlet is located at the center. Is formed by a plurality of long holes radially derived from, a V-shaped engaging piece is provided between adjacent sides of each of the long holes, and at a position facing the inflow port, the liquid surface is provided. It is characterized in that scraping blades moving along are provided.

[0009] The V-shaped engaging piece provided between adjacent sides of each of the long holes may be formed so as to have a valley formed in a front downward direction.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a structure of a recovery unit for floating oil and the like in the oil recovery and separation mechanism according to the present invention. In the recovery unit structure 1 for floating oil and the like, a recovery unit 4 having an inflow port 3 for floating oil and scum at the upper center in a liquid tank 2 in which oil or scum is mixed in water.

The collecting portion 4 is formed by a cylindrical portion 4a loosely and irremovably fitted to the collecting hopper 5, and a substantially inverted conical inflow portion 4b provided on the upper portion of the cylindrical portion 4a. And the said cylinder part 4a is provided so that it may be guided by the said collection hopper 5, and may slide in the up-down direction. The lower portion of the recovery hopper 5 is screwed to one end of an L-shaped recovery pipe 6.

The cylindrical portion 4a has four rectangular elongated holes 3a radially derived from the center of the upper surface of the inflow portion 4b at equal intervals.
Three gate floats 8 arranged in a triangular shape in plan view for holding the inflow port 3 formed in the vicinity of the liquid surface 7 are mounted, and a lower portion of each of the gate floats 8 is provided. A connecting member 9 is provided. One end of each connecting member 9 is fixed to a lower part of a shaft 11 which is arranged in a freely extending state in the longitudinal direction of each gate float 8, while the other end is an outer periphery of the cylindrical portion 4a. It is fixed to.

An annular connecting member 13 is arranged on the upper part of each gate float 8, and a predetermined portion of the connecting member 13 is in a state of being freely penetrated in the longitudinal direction of each gate float 8. It is fixed to the upper part of the arranged shaft 11.

Next, the base ends of the four rectangular elongated holes 3a forming the inlet 3 are connected to each other, whereby the elongated hole 3a has a cross shape in a plan view. 3 is naturally formed in a cross shape. Inlet 3
Is not limited to a rectangular shape, and may be, for example, an oval shape. Also, four or less or four or more elongated holes 3a may be radially derived from the center of the upper surface of the inflow portion 4b. Furthermore, the above-mentioned slot 3a
The base ends may be formed so as not to be connected as shown in FIGS. 3c and 3d.

A V-shaped engaging piece 14 is provided between adjacent sides of four rectangular elongated holes 3a radially derived from the center of the upper surface of the inflow portion 4b. The valley portion 14a is formed so as to fall forward from the rear portion toward the front portion (outside). Note that the valleys 14a do not necessarily need to be formed at the front downward, but may be formed horizontally from the front to the rear.

Three body floats 16 are mounted on the outside of each gate float 8, and each of the body floats 16 described above is attached.
A connecting member 17 is disposed below the door 16. One end of the connecting member 17 is connected to each of the main body floats 16.
The other end is fixed to the upper part of the outer peripheral surface of the L-shaped recovery pipe 5 while being fixed to the lower part of the shaft rod 18 which is arranged in a free running state in the vertical direction.

On the upper part of each main body float 16, three connecting members 19 are arranged in a triangular shape, and both ends of each of the connecting members 19 play in the longitudinal direction of each main body float 16. It is fixed to the adjacent upper part of the shaft rods 18 arranged in a penetrating state.

Next, at a position facing the inlet 3 formed by four rectangular elongated holes 3a radially derived from the center of the upper surface of the inflow portion 4b of the collecting portion 4, oil or oil is supplied to the inlet 3. A scraping blade 20 made of resin for scraping floating oil, scum and the like in the liquid layer 2 in which scum or the like is mixed in the water is provided, and the scraping blade 20 moves along the liquid surface 7. Is provided.

The scraping blade 20 is supported by a support member 23 attached to the tip of a rotating shaft 22 driven by a motor 21. The motor 21 is located at the center of the three main body floats 16 and is mounted and supported on a connecting member 19 disposed above the three main body floats 16. The scraper blade 20 may be provided on the support member 23 so as to be movable via a support shaft (not shown). Further, a brush or the like may be used instead of the scraping blade 20.

One end of a U-shaped recovery pipe 25 is rotatably connected to the other end of the L-shaped recovery pipe 6 to which the recovery hopper 5 is screwed. One end of another U-shaped recovery pipe 26 is rotatably connected to the other end, and one end of an L-shaped recovery pipe 27 is rotatably connected to the other end of the recovery pipe 26. It is connected. A plurality of recovery pipes (not shown) are rotatably connected to the other end of the recovery pipe 26, and floating oil, scum, etc. are recovered and separated through the plurality of recovery pipes (not shown). ) Is connected to a recovery pump (not shown) for recovering the inside.

According to the structure 1 for recovering floating oil and the like in the oil recovery and separation mechanism having the above-described structure, when the floating oil is recovered by the recovery unit 4 disposed in the liquid tank 2 in which oil, scum, etc. are mixed in water. In addition, since the collecting section 4 has the inflow port 3 formed by four rectangular elongated holes 3a radially derived from the center of the upper surface of the inflow section 4b, the adjacent elongated holes 3a are thereby formed. , The flow velocity increases, and the inflow becomes easier, so that the floating oil can be reliably collected.

Further, since the scraping blade 20 is provided so as to rotate at a position facing the inlet 3, the lower surface of the scraping blade 20 and the rectangular elongated hole forming the inlet 3 when the scraping blade 20 rotates. 3a is in contact with the side of the liquid tank 2a.
Solid impurities such as scum and miscellaneous substances floating with oil in the inside can be raked and pushed into the inflow port 3, and can be reliably recovered.

Further, since V-shaped engaging pieces 14 are provided between adjacent sides of the long holes 3a forming the inflow port 3, solid impurities such as floating oil, scum, miscellaneous substances, etc. Since it flows into the inside of the upper surface of the engagement piece 14, it can be efficiently scraped by the scraping blade 20 and pushed into the inlet 3.

Further, the inflow port 3 provided at the inflow section 4b of the recovery section 4 can be always held near the liquid level 7 by the gate float 8 and can sufficiently change the liquid level 7. Can be made to correspond.

[0026]

As described above, according to the first aspect of the present invention, in order to recover the floating oil in the liquid tank in which oil, scum, etc. are mixed in water, the recovery section is located at the center of the upper surface of the inflow section. Since it has an inflow port formed by four oblong holes that are radially derived, the flow velocity of the floating oil increases toward the adjacent long holes, so that it becomes easier to flow in, and the recovery of the floating oil is facilitated. It can be performed reliably.

According to the second aspect of the present invention, the scraping blade provided at a position facing the inflow port forms a rectangular elongated hole which forms the inflow port with the lower surface thereof when the scraping blade rotates. When they come into contact with each other, solid impurities such as scum and miscellaneous substances floating with the oil in the liquid tank are raked by the blades and pushed into the inflow port, so that they can be reliably collected. .

According to the third and fourth aspects of the present invention,
Solid impurities such as floating oil, scum, and miscellaneous substances flow into the upper surface of the engagement piece due to the V-shaped engagement piece provided between adjacent sides of the long holes forming the inflow port. So
It can be efficiently raked by the rake blades and pushed into the inflow port.

[Brief description of the drawings]

FIG. 1 is a plan view showing a structure of a recovery unit for floating oil and the like in an oil recovery and separation mechanism according to the present invention.

FIG. 2 is a partially simplified front view showing the structure of a recovery unit for floating oil and the like in the oil recovery and separation mechanism.

FIG. 3A is a perspective view of a collection unit provided with an engagement piece,
b is a perspective view of a collecting section provided with no engaging piece, c is a perspective view showing another example of the collecting section, and d is a perspective view showing another example of the collecting section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Collection part structure of floating oil etc. 2 Liquid tank 3 Inflow port 3a Slot 4 Collection part 8 Float 14 Engagement piece 20 Scrape blade

Claims (4)

[Claims] 1. A collection section having an inlet for collecting the oil and solid impurities is provided in a liquid layer in which solid impurities such as scum and miscellaneous substances are mixed in oil and floats.
The recovery unit is provided with a float for holding the inflow port near the liquid surface, while the inflow port is formed by a plurality of long holes radially derived from a central portion, and is provided behind each of the long holes. The end is connected to a structure for recovering floating oil or the like in the oil recovery / separation mechanism. 2. A collection section having an inflow port for collecting the oil and solid impurities is provided in a liquid layer in which solid impurities such as scum and miscellaneous substances are mixed in the oil and floats.
The collecting section is provided with a float for holding the inflow port near the liquid surface, while the inflow port is formed by a plurality of elongated holes radially derived from the central portion and is located at a position facing the inflow port. A collecting portion structure for floating oil and the like in the oil collecting and separating mechanism, wherein a scraping blade moving along the liquid surface is provided. 3. A collection section having an inflow port for collecting the oil and solid impurities is provided in a liquid layer in which solid impurities such as scum and miscellaneous substances are mixed in the oil and floats.
The collecting section is provided with a float for holding the inflow port near the liquid surface, while the inflow port is formed by a plurality of long holes radially derived from a central portion, and the long holes are adjacent to each other. A V-shaped engaging piece is provided between the sides, and a scraper blade that moves along the liquid surface is provided at a position facing the inflow port. Structure for collecting oil etc. 4. The floating oil in the oil recovery / separation mechanism according to claim 3, wherein a valley of a V-shaped engaging piece provided between adjacent sides of each of the long holes is formed to be lowered forward. Collection unit structure.