JP3155235B2 - 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 recovering scum in a sewage treatment plant, a food factory or the like, and floating oil in a plating factory.

[0002]

2. Description of the Related Art In a conventional liquid recovery apparatus, an inflow portion having an inlet is formed to float on a liquid surface of a liquid by a float, and floating oil is taken in from the inlet and guided to a drain pipe. Is known.

[0003]

However, such liquids often contain floating substances such as scum in addition to the floating oil. Such floating substances are caught by the inflow port of the inflow portion. There was a problem that it could not be collected properly.

The present invention solves the above-mentioned problems, and in particular, it is possible to reliably collect not only floating oil but also floating substances such as scum mixed with the floating oil, and the drive unit has excellent waterproofing property and failure. It is an object of the present invention to propose a liquid recovery device that does not have any liquid.

[0005]

As a means for solving the above problems, a liquid recovery apparatus according to the present invention is provided vertically in a liquid in which suspended matter such as oil or scum is mixed in water. A collection pipe comprising a pipe main body and a sliding pipe provided at an upper portion of the pipe main body so as to be slidable in a vertical direction and having an inlet at an upper end thereof for a floating substance such as floating oil or scum. A recovery device comprising a pipe and a float for holding the inflow port near the liquid surface of the liquid. Is provided so as to indirectly rotate following the rotation of the driving unit supported by the pipe body, and the driving unit is completely sealed. Stored in the casing It is characterized in.

The inlet has a central portion formed in a throttle shape, and a V-shaped groove is formed outward in the throttle portion, and a valley of the V-shaped groove approaches the inlet. May be formed in a gradient that rises according to

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;

In FIG. 1, reference numeral 1 denotes a liquid recovery apparatus according to the present invention. The liquid recovery apparatus 1 removes floating substances such as oil and scum mixed in a liquid 3 in a liquid tank 2. It is for collecting.

In the liquid tank 2, a recovery pipe 4 for floating substances such as floating oil and scum is disposed, and the recovery pipe 4 is connected to a pipe body 4a and a sealing section 5 above the pipe body 4a. The sliding pipe 4b is formed so as to be slidable in the vertical direction, and an inlet 6 for taking in floating substances such as floating oil and scum is provided at the upper end of the sliding pipe 4b.

A pair of floats 7 for holding the inlet 6 at a position with respect to the vicinity of the liquid level of the liquid 3 are provided at the side of the sliding pipe 4b.
At the lower end of the float 7, a connecting rod 8 bent in a J-shape is fixed, and one end of the connecting rod 8 is screwed to the sliding pipe 4b. It is fixed to a ring 9. And the sliding pipe 4
b through the mounting ring 9 to rotate
7 moves along the axial direction of the sliding pipe 4b,
At the same time as the relative position between the inlet 7 and the inlet 6 can be adjusted, the inlet 6 can correspond to the liquid level. The other end of the connecting rod 8 penetrates the float 7 and protrudes from the upper end and is connected via a connecting plate 10.

The lower portion of the pipe body 4a is bent in a U-shape and is connected to a discharge pipe 13 provided outside the liquid tank 2 via a connector 12.

Next, the inlet 6 is formed in a substantially butterfly-like shape in plan view with a central portion having a throttle shape, and V-shaped grooves 14 are formed on both sides of the throttle portion 6a of the inlet 6 outward. Is formed. The valley portion 14a of the V-shaped groove 14 is formed in a gradient that rises from the tip end toward the inlet 6. Further, at a position facing the inflow port 6,
A scraping means 16 is provided for scraping floating substances such as floating oil and scum on the V-shaped groove 14 and introducing the same into the inlet 6. The scraping means 16 is connected to the pipe main body 4a via screws 17. Rotation of a motor 22 which constitutes a part of a drive unit 21 housed in a partitioned and completely enclosed first room 20a of a casing 20 fixedly mounted on a plate member 18 which is mounted thereon. Is provided so as to rotate indirectly in accordance with the rotation direction.

A rotating disk 24 constituting a part of the drive unit 21 is fixed to an output shaft 23 of the motor 22 via a screw 25, and a predetermined distance is set near the outer periphery of the lower surface of the rotating disk 24. Thus, the magnet 26 is embedded. The rotating disk 24 is housed in a completely enclosed second room 20b defined by the casing 20.

The scraping means 16 has a movable shaft 29 which is guided by a rotary shaft 27 and a concave groove 28 formed along the axial direction on both sides of the rotary shaft 27 so as to be vertically movable.
And a scraper blade 30 fixed to the movable rod 29 by an appropriate means such as adhesion, screwing, welding or the like.

The scraper blades 30 are preferably made of metal, flexible resin, rubber, or the like. The scraping means 16 is not limited to this. For example, the scraping blades 30 are provided on the lower surface of the rotating disk, and a rectangular through hole is provided in the center of the rotating disk, while the rotating shaft 27 is inserted through the rotating shaft 27. 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.

A rotating disk 31 is fixed to the tip of the rotating shaft 27 via screws 32, and the rotating disk 31 has magnets 33 embedded at predetermined intervals near the outer periphery of the upper surface thereof. The magnet 33 buried near the outer periphery of the upper surface of the rotating disk 31 corresponds to the magnet 26 buried near the outer periphery of the lower surface of the rotating disk 24, and is provided so as to be attracted to each other by magnetic attraction. It is provided so as to rotate indirectly following the rotation of 24. Also,
The rotating disk 31 is housed in a third room 20 c defined by the casing 20. The third room 20c and the second room 20b are separated via a partition plate.

According to the liquid recovery apparatus 1 having the above-described structure, the liquid recovery apparatus 1 floats in the liquid tank 2 containing the liquid 3 in a state where floating substances such as oil and scum are mixed therein. In this case, ancillary equipment (not shown) including a recovery pump, a liquid separation device, an oil recovery storage tank, and the like is to be installed in a land area, and the recovery pump and the discharge pipe 13 are connected via a connector. Keep it. By rotating the sliding pipe 4b, the relative position between the float 7 and the inlet 6 is adjusted, and the inlet 6 is made to correspond to the liquid level of the liquid 3.

When the operation of the recovery pump is controlled in this state, the liquid 3 flows around the inlet 6 provided at the upper end of the sliding pipe 4b forming the recovery pipe 4 and from the V-shaped groove 14 of the inlet 6. The recovery pump enters the liquid separator through the discharge pipe 13 connected to the pipe body 4a, is separated into oil and water, and the water is returned to the water area, and the oil is stored in the oil recovery storage tank. Is done.

In the above, if there is a floating substance such as dust and scum in the liquid 3 together with the floating oil, the floating substance hardly flows into the recovery pipe 4 from around the inflow port 6.
When it is guided into a V-shaped groove 14 formed on both sides of the inflow port 6 and is accumulated thereon, the scraping means 16
The forked blades 30 are forcibly gathered by rotating the blades 30 via the drive unit 21 and rise along the inclined surface of the V-shaped groove 14, so that the collected oil and floating oil can be reliably collected in the collection pipe 4. And can be collected.

The scraping blade 3 of the scraping means 16
0 is attached to the rotary shaft 27 so as to be able to move up and down.
If the inflow port 6 provided at the upper end of b bounces up and down, it can follow and respond to it.

Further, a driving unit 21 using a motor as a driving source.
The rotating disk 24 fixed to the output shaft 23 of the drive unit 21 is housed in each of the compartments within the casing 20 which are completely enclosed, so that it is sufficient even when exposed to water. Can withstand use.

[0022]

As described above, according to the first aspect of the present invention, a pipe main body provided vertically in a liquid in which a floating substance such as oil or scum is mixed in water, and a pipe main body provided with the pipe main body. A collection pipe comprising a sliding pipe provided at the upper part so as to be slidable in the vertical direction and having an inlet for a floating substance such as floating oil or scum at the upper end is disposed. By attaching the float for holding the liquid near the liquid surface, the inflow port can be made to correspond to the liquid surface of the liquid even if the liquid surface of the liquid fluctuates due to a wave or wind.

At a position facing the inlet of the sliding pipe, a scraping means for scraping floating substances such as scum and dust together with floating oil on the V-shaped groove formed at the throttle portion of the inlet is provided. In this way, floating substances such as scum and dust can be raked together with the floating oil and reliably collected in the collecting pipe. Since the scraping means is configured to indirectly rotate following the rotation of the driving unit supported by the pipe body, dust and the like are caught by the scraping means and cannot be rotated. Sometimes, it is possible to prevent the drive section from burning out.

Further, since the drive unit is housed in a completely sealed casing, it can be used sufficiently without failure even in a manhole part, a humid place under the floor, or on a ship exposed to water. Can withstand.

According to the second aspect of the present invention, the center of the inflow port is formed in a throttle shape, and a V-shaped groove is formed outward in the throttle portion, and a valley portion of the V-shaped groove is formed. Is formed in a gradient rising as approaching the inflow port, so that scum, together with the floating oil guided into the V-shaped groove,
Suspended matter such as refuse can flow in and be collected around the inlet and through the V-shaped groove of the inlet.

[Brief description of the drawings]

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

FIG. 2 is an enlarged explanatory view of a main part of the liquid recovery device.

FIG. 3 is a plan view of an inlet.

FIG. 4 is a longitudinal sectional view showing a state where the inflow port is partially omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid recovery apparatus 3 Liquid 4 Recovery pipe 4a Pipe main body 4b Sliding pipe 6 Inflow port 6a Restriction part 7 Float 14 V-shaped groove

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-329476 (JP, A) JP-A-6-212613 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C02F 1/40 E02B 15/10 B01D 17/00

Claims (2)

(57) [Claims] 1. A pipe body provided vertically in a liquid in which a floating substance such as oil or scum is mixed in water, and a pipe body slidably provided in an upper part of the pipe body in a vertical direction and floating on an upper end. A recovery pipe comprising a sliding pipe having an inlet for suspended matter such as oil or scum is provided, and the sliding pipe is provided with a float for holding the inlet near a liquid surface of the liquid. A collecting device, wherein a scraping means is provided at a position facing the inlet of the sliding pipe to collect the suspended matter and introduce the scrap into the inlet, and the scraping means is a driving unit supported by the pipe body. The liquid recovery device is formed so as to rotate indirectly following the rotation of the liquid crystal device, and the drive unit is housed in a completely closed casing. 2. The inflow port has a central portion formed in a throttle shape, and a V-shaped groove is formed outward in the throttle portion, and a valley of the V-shaped groove approaches the inflow port. 2. The liquid recovery apparatus according to claim 1, wherein the liquid recovery apparatus is formed in a gradient that rises according to the following.