JPS6027516Y2 - Liquid surface floating matter suction device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a suction device for floating matter on the liquid surface of a tank.

Conventionally, in plating work, oil, dust, etc. are wiped off from the surface of the part to be plated, but since the oil on the surface remains until the end, the part to be plated is immersed in water in tank B. The tank is submerged to separate oil from its surface and float to the surface of the water, and the floated oil is discharged into a receiving gutter 12 from a weir 11 provided on the side wall of the tank itself.

However, providing such a device for each tank of various sizes to suit the members to be plated of various sizes would be expensive in terms of cost.

The present invention was devised in view of the problems of the prior art described above and to solve the problems.It can be easily and quickly installed in a tank of any shape and size, and oil, etc. floating on the liquid surface can be reliably removed. The purpose of the present invention is to provide a novel suction device for floating matter on a liquid surface.

Hereinafter, the present invention will be sequentially explained according to an illustrative embodiment.

Reference numeral A denotes a suction device for floating matter on the liquid surface, which consists of a fixed suction tube 1 and a floating suction tube 2.

The fixed suction pipe 1 has a lower end that is vertically inserted into the liquid in the tank B and is closed, and a plurality of suction holes 3, 3, etc. are formed around the lower pipe 1b near the closed part 1a. ...
・ are opened in a circular shape, and the suction holes 3.3...
...A resistor 4 is placed on the outer periphery of the lower part pg t b below.
4... are attached in a circle, and furthermore,
A portion extending toward the outside air side is connected to a suction pipe of a pump (not shown).

The floating suction tube 2 is a rectangular cylindrical body that is provided on the outer periphery of the fixed suction tube 1 with open upper and lower ends and is movable up and down with respect to the fixed suction tube 1, and is a part of the fixed suction tube 1 that is submerged in liquid. A cylinder 2a surrounding the buoyancy device 5 is provided on the outer periphery of the upper part, and
Weirs 6, 6, which have a plurality of notches along the upper edge of the cylinder 2a.
..., and further, an adjustment weight 7 is provided at the lower outer end of the cylinder 2a extending downward from the closed part 1a of the fixed suction tube 1.
It is constructed by protruding.

The buoyancy device 5 is provided with an air chamber 5a that is sealed from the outside.

Each side of the weir 6 has a notch groove 6a in the shape of a letter square, and the depth of the notch i6a is about 20 TrrIn, and the liquid level of the tank B is located within that depth.

The adjustment weight 7 adjusts the weight of the floating suction tube 2 and stabilizes its posture.

Next, the main functions of the liquid surface floating matter suction device A constructed as described above will be explained together with its installation method.

Depending on the thickness of the oil etc. floating on the liquid surface in tank B,
The weight of the adjustment weight 7 is appropriately selected and adjusted so that the oil, etc. on the liquid level can be sucked and flowed in smoothly from the notch groove 6a, and the liquid surface floating matter suction device A is inserted into the liquid level in the tank B and properly adjusted. Install.

When the pump is operated in this state to apply suction force to the fixed suction tube 1, the blockage part 1a, the low resistance tool 4°4...
, the suction holes 3, 3... suck the liquid in the gap 8 between the outer circumferential side of the suction hole 1 and the inner circumferential side of the floating suction tube 2. oil, etc. to the floating suction pipe 2.
The fluid is guided from the upper weir 6 into the gap 8, and is further guided upward from the suction holes 3, 3, . . . to be discharged to the outside air from the discharge port of the pump.

When the liquid in the tank B flows, the floating suction pipe 2 maintains a stable posture against vibrations by the lower adjustment weight 7, and furthermore, as the liquid level falls, the floating suction pipe 2 moves along the suction pipe 1 as the liquid level falls. (downward), the position of the weir 6 is always maintained at a predetermined depth relative to the liquid level.

In addition, a low resistance device 4 attached to the outer periphery of the lower end of the fixed suction tube 1 maintains a constant positional balance of the floating suction tube 2 with respect to the fixed suction tube 1, and prevents the floating suction tube 2 from moving in the liquid. In addition to preventing wobbling, a flow resistance is provided between the suction hole 3 and the open lower end of the floating suction tube 2, so that the suction from the suction hole 3 is mainly caused by suspended matter on the liquid surface, and the lower end of the floating suction tube 2 is It has the function of additionally sucking the dispersed oil in the liquid from the intermediate part.

After all the oil and the like on the liquid surface has been removed, the pump is stopped and the suction device A is taken out from the tank B.

As described above, in the present invention, the tip of the fixed suction tube hanging vertically to the liquid level is closed, a suction hole is bored in the upper part of the low resistance device provided around the lower tube, and the outer circumference of the fixed suction tube is A floating suction pipe with an appropriate interval is installed on the outside, a buoyant device and an adjustment weight are installed, and the top and bottom are opened, and the upper part is used as a weir to preferentially and uniformly suction floating matter on the surrounding liquid surface. Since the liquid surface floating matter suction device is configured as shown above, it is possible to install the liquid surface floating matter suction device regardless of the shape and size of the tank, and it can easily, quickly and reliably remove oil etc. floating on the liquid surface. can.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a conventional tank liquid surface suction device, and FIG. 2 is a vertical cross-sectional view of a liquid surface suction device which is an embodiment of the present invention. A...Liquid surface floating matter suction device, 1...Fixed suction tube, 2...Floating suction tube, 3...
Suction hole, 4...Low resistance device, 5...Buoyancy device, 6...Weir, 7...Adjustment weight, 8...
····gap.

Claims (1)

[Scope of utility model registration request] A rectangular cylindrical floating suction tube with a suction gap and open upper and lower ends is provided on the outer periphery of a fixed suction tube suspended in the liquid, and a buoyancy device is fixed on the upper outer periphery of the floating suction tube. An adjustment weight is provided on the outer periphery of the lower part to close the lower end of the fixed suction pipe, and a suction hole is formed in the peripheral wall opposite to the suction gap, and further, a resistance is applied to the outer periphery of the fixed suction pipe below the suction hole. 1. A liquid surface floating matter suction device, characterized in that a device is attached to the floating matter suction tube to preferentially suck floating matter on the surrounding liquid surface from the upper end of the floating suction pipe through the suction gap.