JP3181541B2 - Liquid recovery device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid recovery apparatus, and more particularly to a liquid recovery apparatus for scum in a food factory or the like, or floating oil in a steel factory.

[0002]

2. Description of the Related Art Various types of recovery devices for recovering liquid such as scum in food factories and floating oil in steel factories have been proposed and put to practical use. Most of these conventional devices have a structure in which an inflow weir having an opening through which the liquid flows into the recovery pipe is floated on the liquid surface by a float, and the liquid containing light oil having a specific gravity is occupied. Is guided from the opening into the recovery pipe over the inflow weir.

[0003]

However, these liquid recovery devices have no problem in recovering a liquid containing oil having a low specific gravity due to their structure. However, such liquid recovery devices have a high viscosity such as oil and scum. At the time of recovery, there was a problem that it was caught by the opening of the inflow weir and could not be recovered very well.

[0004] The present invention solves the above-mentioned problems, and it is possible to reliably recover not only oil having a low specific gravity, but also oil and scum, especially having increased viscosity, and the drive section is also made to be waterproof. An object of the present invention is to propose a liquid recovery device that can prevent a failure.

[0005]

As a means for solving the above-mentioned problems, a liquid recovery apparatus according to the present invention comprises a recovery pipe having an inflow port supported by a main float and an outer periphery of the recovery pipe. An inflow weir that is loosely fitted and supported by the sub-float so as to float on the liquid, and that flows floating substances such as oil, scum, dust and the like together with the liquid into the recovery pipe through the inflow port; A collecting pipe provided at a lower portion of the collecting pipe and configured to discharge the liquid in the collecting pipe, wherein the floating substance is raked into the collecting pipe at a position facing the opening of the inflow weir. the scraper means flows provided, this raking
Means for rotating the drive unit supported by the main float.
While following the rotation, the upper end of the inflow weir is opened.
At the mouth, form a squeezed part that is squeezed toward the center,
A V-shaped groove is formed in the throttle portion of the inflow weir, and the V-shaped groove is formed.
As the valley of the groove approaches the center from the outside, it rises
It is characterized in that it is formed as a slope with a gradient .

[0006]

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

In FIG . 1, reference numeral 1 denotes a liquid recovery apparatus according to the present invention. The liquid recovery apparatus 1 is supported by three main floats 2 arranged so as to form a triangle and floats on a liquid (water) 3. Pipe 5 having an inflow port 4 provided as described above, and floating on the liquid 3 supported by three sub-floats 6 which are loosely fitted around the recovery pipe 5 and arranged in a triangular shape. An inflow weir 8 that is provided and flows into the collection pipe 5 through the inflow port 4 into the collection pipe 5 together with the liquid 3 and floating substances such as oil, scum, and dust; and a collection pipe 5 provided below the collection pipe 5. Mainly by a discharge pipe 9 for discharging the liquid 3 in the inside, a scraping means 12 provided at a position facing the opening 11 of the inflow weir 8, and a driving unit 13 for indirectly rotating the scraping means 12. Composed There.

The recovery pipe 5 is formed by a pipe body 5a and a conical portion 5b forming an inflow port 4 screwed on the upper part of the pipe body 5a.
A discharge pipe 9 for discharging the liquid 3 in the recovery pipe 5 and the scum contained therein is connected to the lower part of a through a connector 14. Further, the conical portion 5b is provided so as to also serve as a seal portion with the inflow weir 8 to which the play is fitted.

In the longitudinal direction of the center of the three main floats 2, bar members 15 each made of metal and formed with a thread groove at the front end are provided.
Are inserted, and nuts 16 are screwed at upper and lower portions thereof to prevent the main float 2 from being pulled out of the rod member 15. The lower part of the rod member 15 is bent into an L-shape, and its tip is a collection pipe 5.
Receiving member 17 screwed near the lower portion of the pipe body 5a
Is fixed via a fixture 18. Further, a stopper member 19 is provided near the end of the recovery pipe 5 to prevent the three sub-floats 6 from rotating in a floating state on the liquid 3.

The ends of the rod members 15 projecting from the upper part of each main float 2 are linked by a connecting rod 20, and the connecting rod 20 is fixed to the rod member 15 via a nut 21. . A mounting plate 23 for mounting the drive unit 13 is mounted inside the connecting rod 20.

In the above description, the recovery pipe 5 is supported by the three main floats 2 and is provided so as to float on the liquid 3, and is formed so as to be able to cope with a change in the liquid level of the liquid 3. That is, by rotating the pipe body 5a constituting the recovery pipe 5, the receiving member 17 screwed to the pipe body 5a can be moved up and down. Recovery pipe 5 through two main floats 2
The conical portion 5b forming the inflow port 4 can correspond to the liquid level of the liquid 3.

[0012] Next, three Meinfuro - three disposed inside the bets 2 Subflow - DOO 6 together with the shaft member 25 is projected to the top center, with the shaft member 25 to each other is communicated rod 26 Are linked. The connecting rod 26 is fixed to the shaft member 25 by a fixing member 27 so as not to come off. Further, a shaft member 28 is protruded in a horizontal direction at a lower portion of the inner surface of each of the sub-floats 6, and its tip is loosely fitted to the outer periphery of the conical portion 5b forming the inflow port 4 of the recovery pipe 5. Further, together with the liquid 3, a floating substance such as oil, scum, dust or the like flows into the recovery pipe 5 and is fixed to a side surface of a cylindrical inflow weir 8.

The inflow weir 8 is supported by the three sub-floats 6 and provided so as to float on the liquid 3, and moves up and down via the three sub-floats 6 in response to a change in the liquid level of the liquid 3. It is formed so that it can move. Further, the three sub-floats 6 are suppressed from rotating on the liquid surface by a stopper member 19 having an inverted U-shape standing near the tip of the recovery pipe 5.

[0014] upper part of the inflow gate 8 is an opening portion 11 having a pair of fan-shaped continuous to both sides and shaped diaphragm central portion is formed, outwardly on opposite sides of the diaphragm portion 11a of the opening 11 A V-shaped groove 31 is formed toward it. The valley portion 31a of the V-shaped groove 31 is formed to have a gradient that rises from the tip as it approaches the opening portion 11.

Next, at a position facing the pair of openings 11 having a fan shape provided on top of the inflow gate 8, on the V-shaped grooves 31 formed on both sides of the diaphragm portion 11a of the opening 11 A scraping means 34 for scraping floating substances such as oil, scum, dust and the like and flowing into the collection pipe 5 is provided, and the scraping means 12 is located at the center of the mounting plate 23 supported by the three main floats 2. Case 44 placed on
Is provided in such a manner as to rotate indirectly following the rotation of a motor 45 constituting a part of the drive unit 13 accommodated in the first room 44a which is completely enclosed and partitioned.

The scraping means 12 has a movable shaft 37 which is guided by a rotating shaft 35 and a concave groove 36 formed along the axial direction on both sides of the rotating shaft 35 so as to be vertically movable.
The movable blade 37 is formed by scraping blades 38 fixed by appropriate means such as adhesion, screws, welding and the like. A rotating disk 39 is fixed to the tip of the rotating shaft 35 via a screw 40.
A magnet 41 is buried at a predetermined interval near the outer periphery of the upper surface of 9. The rotating disk 39 is provided with a casing 44.
In the third room 44c.

The scraper blades 38 may be formed of metal, flexible resin, rubber, or the like, if necessary. The scraping means 12 is not limited to this. For example, the scraping blades 38 are provided on the lower surface of the rotating disk, and a rectangular through hole is provided in the center of the rotating disk. A square shaft may be formed corresponding to the shape of the hole, and a rotating disk may be attached to this shaft so as to be vertically movable.

The motor constitutes a part of the driving unit 13 - the output shaft 46 of the motor 45, the rotation disk 47 similarly constituting a part of the drive unit 13 is fixed via screws 48, the rotating disc Magnets 49 are embedded at predetermined intervals near the outer periphery of the lower surface of 47. The magnets 49 correspond to the magnets 41 provided at predetermined intervals near the outer periphery of the upper surface of the rotating disk 39 and are provided so as to be attracted to each other by a magnetic attraction force, and follow the rotation of the rotating disk 47 indirectly. It is provided so that it may rotate. The rotating disk 4
7 is housed in a second room 44b which is completely enclosed and defined by a casing 44. The second room 44b
A partition plate 50 is interposed between the third room 44c and the third room 44c.

Since the liquid recovery apparatus 1 is configured as described above, first, when using the liquid recovery apparatus 1, the liquid recovery apparatus 1 is floated on the liquid (water) 3 in which oil has floated. in this case,
Ancillary equipment (not shown) consisting of a recovery pump, liquid separation device, oil recovery storage tank, etc. shall be installed on land,
The recovery pump and the discharge pipe 9 of the liquid recovery device 1 are connected via a connection pipe. Further, the pipe main body 5a constituting the recovery pipe 5 is rotated to move the receiving member 17 screwed to the pipe main body 5a up and down, and the three main floats 2 attached to the receiving member 17 are moved. Part 5b forming the inflow port 4 of the recovery pipe 5
Correspond to the liquid level of the liquid 3.

Next, flows with floating oil and the recovery pump this state is controlled actuated inlet 4 of the liquid (water) 3 is collecting pipe 5 through the opening 11 of the inflow gate 8, the drain pipe 9 Through the recovery pump and into the liquid separator, separated into oil and water, the water is returned to the water area, and the oil is stored in the oil recovery storage tank.

If the liquid 3 contains suspended matter such as scum and dust together with oil, the suspended matter hardly flows into the recovery pipe 5 from the opening 11 of the inflow weir 8. The floating matter guided into the formed V-shaped groove 31 and accumulated on the V-shaped groove 31 is forcibly collected by rotating the scraping blades 38 of the scraping means 12 by the driving unit 13 to thereby collect the V-shaped groove 31. Up along the slope of
Thereby, it can be led into the recovery pipe 5 together with the floating oil and recovered.

[0022] In addition, raked wings 3 of the scraper means 12
8 is attached to the rotating shaft 35 so as to be able to move up and down, so that even if the liquid level of the liquid 3 changes due to wind or the like and the opening 11 of the inflow weir 8 swings up and down, it can follow and respond to it. .

[0023] In addition, the motor - drive unit 13, a driving source other
The rotating disk 47 fixed to the output shaft 46 of the drive unit 13 is housed in each of the completely closed rooms in the casing 44. It can be fully used and safe even on a ship that is exposed to water.

Next, FIGS. 5 and 6 show another example of the liquid recovery device 1, three Meinfuro in this example - DOO 2 and three Subflow - Figure 1 and Figure shapes of the bets 6 2
And the shape of the bar member 15 to which the main float 2 is attached is also different. Since other configurations are the same, the same reference numerals are given and the description is omitted.

In this embodiment, the same effect as described above can be obtained.

[0026]

As described above, according to the first aspect of the present invention, the sub flow is loosely fitted to the outer periphery of the recovery pipe having the inflow port supported by the main float and provided to float on the liquid. Since the inflow weir is provided so as to float on the liquid supported by the liquid, the liquid level of the liquid fluctuates due to the wind or the like and changes, and even if the recovery pipe moves, the opening of the inflow weir follows the flow and responds. be able to.

[0027] In addition, suspended matter such as scum should be
Is guided to the center side of the opening along the V-shaped groove.
They are forcibly dropped into the opening when the scraper rotates.
And is collected by a collection pipe. Accordingly
To collect scum, garbage, and other floating materials with floating oil
And can always be reliably collected in the collection pipe.

[Brief description of the drawings]

FIG. 1 is a front view of a liquid recovery apparatus according to the present invention in a partially broken state.

FIG. 2 is a plan view of the liquid recovery device in a partially omitted state.

FIG. 3 is an enlarged sectional view of a recovery pipe portion.

FIG. 4 is an explanatory diagram showing a linkage between a driving unit and a scraping unit;

FIG. 5 is a front view of another example of the liquid recovery apparatus in a partially omitted state.

FIG. 6 is a plan view of the liquid recovery device shown in FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 liquid recovery device 2 main float 4 inflow port 5 recovery pipe 6 subfloat 8 inflow weir 9 discharge pipe 11 opening 12 scraping means 13 drive unit 31 V-shaped groove 31a valley

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-212613 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C02F 1/40 E02B 15/10 B01D 17 / 00

Claims (1)

(57) [Claims] A collection pipe having an inlet supported by a main float; a recovery pipe which is loosely fitted on an outer periphery of the recovery pipe and is supported by a sub-float so as to float on a liquid; Formed by an inflow weir through which floating substances such as oil, scum, dust and the like flow along with the liquid into the recovery pipe, and a discharge pipe provided below the recovery pipe and discharging the liquid in the recovery pipe. A collecting device, wherein a scraping means for collecting the suspended matter and flowing into the collecting pipe is provided at a position facing the opening of the inflow weir, and the scraping means is supported by the main float.
With the rotation of the drive unit being held,
Then, the upper end opening of the inflow weir is squeezed toward the center.
And the throttle portion of this inflow weir has a V-shape
A groove is formed, and the valley of the V-shaped groove is formed from the outside toward the center.
A liquid recovery apparatus characterized in that the liquid recovery apparatus is formed as an inclined surface having a gradient that rises as the temperature increases .