JPS6330544Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for collecting paint scum generated in an automobile paint factory or the like.

In the past, all paint scum that had fallen to the bottom of the painting room, or that had been collected in a tank with cleaning water and floated on the water surface, had to be manually scraped up and collected.

However, such manual means for collecting paint scum has the disadvantage that working efficiency is low and the working environment tends to be harmful to workers.

An object of the present invention is to provide an apparatus that eliminates such drawbacks and can efficiently and automatically collect paint scum.

For this reason, the paint sludge collection device of the present invention includes a tank to which a conduit for a liquid containing paint sludge is connected at one end;
The same slope as the inclined guide section is provided on both sides of the tank and causes a contracted flow toward the downstream side so that the liquid that has flowed into the tank through the conduit and is in a rectified state is swirled to the left and right. A pair of baffle plates consisting of a parallel guide section continuous to the downstream side of the shape guide section, and paint scum floating on the surface of the liquid in the confluence area of the left and right swirling flows of the liquid generated by these buffle plates. The suction member is equipped with a suction member capable of sucking the liquid together with the liquid, and a paint scum separation mechanism connected to the suction member via a pump. The suction member is held by a plurality of floats floating on the liquid surface in order to cause the suction port to follow the liquid surface, and the swirling flow is connected to a throat section below the liquid surface. The plurality of floats are connected at a distance from each other by a connecting frame above the liquid level to allow rotation of the floats.

Hereinafter, a paint scum collection device as an embodiment of the present invention will be explained with reference to the drawings. Fig. 1 is a plan view thereof, Fig. 2 is a vertical sectional view thereof,
FIG. 4 shows a portion where the suction member is held by the float, FIG. 3 is a plan view thereof, and FIG. 4 is a view taken along the - arrow in FIG. 3.

As shown in FIGS. 1 and 2, this paint scum collection device is equipped with a tank 3 for storing paint scum 2 that flows in together with cleaning water through a conduit 1. Dreg 2 is floated.

Further, the suction member 5, which can suck up the paint scum 2 floating on the liquid surface 4 together with the liquid, floats on the liquid surface 4 so that its suction port 5a can follow the liquid surface 4, as shown in FIGS. It is held by four vertical cylindrical floats 6.

As shown in Figs. 1 and 2, the suction member 5 is connected to a paint residue separating mechanism 9 via a flexible hose 7, a pump 8 and a conduit 8a.

This paint scum separation mechanism 9 is of a belt conveyor type in which a belt 9a having a function as a filter is passed around, and the paint scum 2 separated on the belt 9a is dropped into a paint scum storage container 10, and is transferred to the belt 9a. The liquid (water) filtered by
1 and returned into the tank 3.

The suction port 5a extends above the liquid level 4, but the throat 5b connected to it is below the liquid level.
This allows the liquid level 4 to be lowered from the suction port 5a during pump operation.
It is possible to prevent air from being sucked in while actively sucking up paint scum floating on the surface.

Further, the suction member 5 is supported in the middle between the floats 6 by a support rod 6b connected to the middle of the connection frames 6a of the four floats 6 provided at a distance from each other. The connecting frame 6a is disposed above the liquid level 4. Therefore, the paint scum that becomes dense due to the action of the swirling flow 4a is efficiently sucked into the suction port 5a without being obstructed by the float 6 or the connecting frame 6a.

Furthermore, a rectifying area is formed by providing an inflow weir at a sufficient distance from the conduit connecting part on the inflow side of the liquid containing paint scum 2 in the tank 3, or near the conduit connecting part, and the liquid containing paint scum 2 in the tank 3 is passed through this rectifying area. A baffle plate 12 is provided on the downstream side thereof. These buff-full plates 12 have inclined guide portions 12 that generate contracted flow 4b toward the downstream side.
a, and a parallel guide section 12b that is continuous to the downstream side of the inclined guide section 12a.

Furthermore, a discharge port (not shown) is provided at the lower part of the downstream side of the tank 3 to discharge the liquid after the paint scum 2 has been floated and separated.

Therefore, while the liquid that has flowed into the tank 3 through the conduit 1 and is now in a rectified state gradually advances downstream through the rectified area, paint scum begins to float and gradually flows parallel to the entire width of the tank. It becomes a current and is rectified. When the liquid arrives near the pair of left and right buffle plates 12, the buffle plates 12 work to generate a swirling flow 4a. That is, the liquid flow generates a contracted flow 4b by the inclined guide portion 12a of the buff-full plate 12, splits into left and right sides near the downstream end of the tank 3, and then flows through the parallel guide portion 12b of the buff-full plate 12. After being guided slowly upstream along the flow path, the flow is induced by the contracted flow 4b and changes its direction to the outer flow side again, thus generating swirling flows 4a on the left and right, respectively.

In the confluence area of these swirling flows 4a, the suction port 5a of the suction member 5 is arranged at the liquid surface area where the paint scum 2 gathers, and the suction port 5a follows the level of the liquid surface. At the same time, the paint scum 2 is suctioned and collected.

On the other hand, the liquid after floating and separating the paint scum 2 is
After repeating direct or swirling flow, it is discharged from an outlet (not shown) on the downstream side in the tank 3,
In this way, the liquid level in the tank 3 is kept almost constant.

With the above configuration, when the pump 8 is operated,
The paint scum 2 floating on the liquid surface is sucked together with the liquid at a sufficient density by the suction member 5 and guided to the paint scum separation mechanism 9, where the paint scum is separated and recovered.

An example of a paint scum collection device actually installed according to the present invention is as follows.

(1) Amount of liquid containing paint scum flowing into the tank (≒ Amount of circulation from the tank to the painting booth): 3345m ³ /hr (2) Amount of floating paint scum transported to the paint scum separation mechanism (amount of suction) ): 2.3% of inflow at 78m ³ /hr (maximum)
(max).

(3) Flow velocity in the tank (velocity of the entire fluid flow from the inlet to the outlet in the tank): 1.7 m/min (4) Residence time in the tank: 12 min The following are the effects or advantages of the device of the present invention. The following are listed.

(1) Since a pump is used to collect paint residue,
The liquid containing paint scum can be efficiently and automatically sucked, the paint scum can be separated and collected by the paint scum separation mechanism 9, and the liquid can be transported to a long distance using a conduit.

Therefore, even if the paint waste incineration site is far from the tank 3, there is no problem.

(2) Nothing is installed between the suction port 5a and the pump 8 other than the suction member 5 and the hose 7, and it has a very simple configuration, and is designed to suck paint scum 2 together with the liquid. Therefore, there is no problem such as highly adhesive paint scum 2 adhering to equipment and clogging it.

(3) A pair of buff-full plates 12 provided on both sides of the tank 3 form swirling flows 4a of liquid containing paint scum 2 on the left and right sides, respectively, and a joining area of these swirling flows 4a is created. Since the suction member 5 is disposed at , the suction of the paint scum 2 can be carried out very efficiently.

Further, the paint scum 2 grows and becomes a lump due to the swirling flow 4a, and collects in the confluence area of the swirling flow 4a, so that the paint scum 2 can be efficiently sucked.

(4) Even if the liquid level in the tank 3 fluctuates, the suction port 5a reliably follows the liquid level 4 due to the action of the float 6 that holds the suction member 5.

(5) Since the suction member 5 is provided with a suction port 5a that expands above the liquid surface and a throat portion 5b that is connected to the suction port 5a and is located below the liquid surface,
While actively suctioning the paint scum 2, suction of air can be eliminated, the efficiency of the pump 8 is increased, and a stable suction action is performed.

(6) Since manual scraping of paint scum is not required, the work environment can be greatly improved.

(7) Since the plurality of floats 6 holding the suction member 5 are connected so as to be spaced apart from each other by the connecting frame 6a above the liquid level, the left and right butt-full plates 12 can prevent the liquid containing paint scum from flowing. The swirling of the swirling flow 4a is performed without any problem.

Then, the paint scum 2 that has not been captured by the suction member 5 is swirled again by the swirling flow 4a, and becomes a larger lump.
It is efficiently sucked into the suction member 5.

[Brief explanation of the drawing]

The drawings show a paint scum collection device as an embodiment of the present invention. Fig. 1 is a plan view thereof, Fig. 2 is a longitudinal cross-sectional view thereof, and Figs. 3 and 4 show a suction member using the float. This indicates the holding part.
FIG. 3 is a plan view thereof, and FIG. 4 is a view taken along the - arrow in FIG. 1... Conduit, 2... Paint scum, 3... Tank,
4...Liquid level, 4a...Swirl flow, 4b...Contraction flow, 5
...Suction member, 5a... Suction port, 5b...
Throat, 6...Float, 6a...Connection frame, 6b
...Support rod, 7...Hose, 8...Pump, 8a
... Conduit, 9 ... Paint scum separation mechanism, 9a ... Belt, 10 ... Paint scum storage container, 11 ... Conduit, 12 ... Bumpful plate, 12a ... Inclined guide section, 12b ... Parallel type Information department.

Claims (1)

[Scope of utility model registration request] A tank is connected to one end of a conduit for a liquid containing paint scum, and a downstream tank is installed on both sides of the tank to swirl the liquid, which flows into the tank through the conduit and is in a rectified state, to the left and right, respectively. A pair of buttful plates consisting of an inclined guide section that causes a contracted flow toward the side and a parallel guide section continuous to the downstream side of the inclined guide section, and the left and right side of the liquid generated by these buttful plates. A suction member capable of suctioning paint scum floating on the surface of the liquid together with the liquid in the confluence area of the swirling flow of the liquid, and a paint scum separation mechanism connected to the suction member via a pump, the suction member comprising: The suction member is provided with a suction port that expands above the liquid level and a throat portion that is connected to the suction port and is located below the liquid surface. The fluid is held by a plurality of floats floating on a surface, and the plurality of floats are connected at a distance from each other by a connecting frame above the liquid surface to allow swirling of the swirling flow. , paint scum collection device.