JP3117407B2 - Recovery part structure of floating oil etc. in oil recovery separation mechanism - Google Patents

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 characterized in that oil
Liquid layer floating with solid impurities such as cams and miscellaneous substances
Inside, there is an inlet for collecting the above oil and solid impurities.
The collection section provided with the
While attaching a float that keeps the liquid near the liquid surface,
The entrance is defined by several slots radiating from the center.
And at a position facing the inlet, along the liquid level.
Characterized by the provision of swirling vanes that move
You.

[0007] Further, the invention of claim 2 provides scum and miscellaneous oil.
In the liquid layer where solid impurities such as
A pump equipped with an inlet for collecting oil and solid impurities
In addition to the collecting section, the collecting section has an inflow port with a liquid surface
Attach the float to keep it close while
Formed by multiple slots radiating from the core
A V-shaped engaging piece is provided between adjacent sides of each of the long holes.
Provided, and at a position facing the inlet port along the liquid surface
Characterized in that it is provided with a scraping vane that moves
You.

Further, the invention according to claim 3 is characterized in that each of the elongated holes is the same.
The valley of the V-shaped engaging piece provided between the adjacent sides
It is characterized by being formed forward and downward toward the outside
I do.

[0009]

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 at equal intervals from the center of the upper surface of the inflow portion 4b.
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 free state in the longitudinal direction of each gate float 8. It is fixed to the upper part of the arranged shaft 11.

[0014] Then, four rectangular long hole 3a proximal end of each other to form an inlet 3 is connected, thereby the long hole 3a has a plan view cross-shaped form, the inlet 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 engagement 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.

[0016] Each gate - Tofuro - three body outside the bets 8 flows - with bets 16 are mounted, each body flow -
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 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 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 four rectangular inlet port 3 formed by a long hole 3a which derives radially from the inlet portion 4b upper surface center portion of the recovery section 4, the oil Ya the flow 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 recovery section the structure 1 of the floating oil and the like in the oil recovery separation mechanism of the above configuration, when the oil or scum or the like to collect the floating oil by the recovery unit 4 disposed in the liquid tank 2 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 toward, and it becomes easier to flow in, 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.

Furthermore, since the V-shaped engaging piece 14 between adjacent sides of each other long hole 3a which forms an inlet 3 is provided, floating oil and scum, solid impurities miscellaneous products such as 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 always be reliably held near the liquid level 7 by the gate float 8, and is sufficiently capable of changing the liquid level 7. Can be made to correspond.

[0025]

As described above, according to the first aspect of the present invention, in order to collect the floating oil in the liquid tank in which oil, scum, and the like are mixed in the water, the collecting section is arranged from 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. In addition, it is provided at a position facing the inlet
The swirling blade causes the swirling blade to rotate.
The bottom surface and the side of the rectangular elongated hole forming the inflow port
Floats with oil in the liquid tank when
Solid impurities such as scum and miscellaneous
Collected reliably because it is raked and pushed into the inlet
can do.

According to the second and third aspects of the present invention, the flow
A V-shaped engagement between the adjacent sides of the slots forming the entrance
A mating piece is provided, and the valley of the engaging piece is
Because it is formed downward, solid impurities such as floating oil, scum, and miscellaneous substances floating in the liquid tank flow into the upper surface of the engagement piece, and are swept by the scraping blades. It can be efficiently scraped 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

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) C02F 1/40 B01D 17/00-17/12 E02B 15/00-15/10

Claims (3)

(57) [Claims] 1. An oil is mixed with solid impurities such as scum and miscellaneous substances.
The above oil and solid impurities are collected in the liquid layer
In addition to providing a collection unit with an inlet for collecting,
A float for holding the inflow port near the liquid level is provided in the recovery section.
On the other hand, the inlet is radially derived from the center.
Formed by a plurality of elongated holes facing the inlet
At the position, a scraping blade that moves along the liquid level is provided.
The structure of the recovery unit for floating oil and the like in the oil recovery and separation mechanism , characterized in that 2. The oil is mixed with solid impurities such as scum and miscellaneous substances.
The above oil and solid impurities are collected in the liquid layer
In addition to providing a collection unit with an inlet for collecting,
A float for holding the inflow port near the liquid level is provided in the recovery section.
On the other hand, the inlet is radially derived from the center.
Formed by a plurality of elongated holes, adjacent to each other.
A V-shaped engaging piece is provided between the mating sides, and
At the position facing the surface
And a recovery unit structure for floating oil and the like in the oil recovery and separation mechanism. 3. The device according to claim 1, wherein said elongated holes are provided between adjacent sides of said elongated holes.
The valley of the V-shaped engagement piece is lowered forward toward the outside
3. The structure of a recovery unit for floating oil and the like in the oil recovery and separation mechanism according to claim 2 formed .