JPH0677705B2 - Paint mist removal device - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus for removing paint mist generated when spray coating is performed by a coating gun.

That is, when spray coating is performed with a coating gun, the paint, dust, and the like other than those applied to the target object become a paint mist, and are scattered in the ambient air and drift like mist. If this paint mist is released in large quantities into the atmosphere, there is a risk of pollution. Therefore, a workshop where a large amount of spray painting is performed,
That is, in a workplace where the amount of paint used exceeds a predetermined amount, it is legally obligatory to install a removing device that locally removes and collects the paint mist and does not release it outside the system.

"Prior Art" A conventional example of a paint mist removing device is shown in Figs.
It was as shown in Figure 10.

First, FIG. 9 shows a so-called wet type removing device. This removing device is fixedly installed on a local floor or the like in a factory building where the paint mist M is generated. A part of the paint mist M, which is generated when the object O is painted by the paint gun G and is contained in the ambient air, is first adhered to the water film wall 1 to be removed. The air is sucked in further and adhered to and removed from the sprayed water 4 showered by the nozzle 3, and then dropped into a water tank 5 provided on the floor or the like and collected. The mist-like water generated by the jet water 4 is removed by the eliminator 6, and the outside air thus introduced becomes clean air and is exhausted to the outside by the fan unit 8 via the exhaust port 7.

Next, FIG. 10 shows a so-called dry type removing device. This removing device is also fixed to a local floor or the like in a factory building where the paint mist M is generated. The paint mist M that is generated when the object O is painted by the paint gun G and is contained in the ambient air is a filter 10 provided in the intake port 9.
Is removed by passing through the exhaust gas, and the outside air becomes clean air and is exhausted to the outside by the fan unit 12 via the exhaust port 11.

"Problems to be Solved by the Invention" By the way, the following problems have been pointed out in such a conventional paint mist removing device.

First, in the wet type removal device shown in FIG. 9, the construction of the water tank 5 is large on the floor of the building, and the construction cost is high due to the need for foundation work and the initial cost is high. It was pointed out that it takes time.

On the other hand, in the dry type removing device of FIG. 10, the paint mist M
It has been pointed out that the efficiency of the removal of the filter 10 is generally inferior, the performance of the filter 10 changes drastically between the start of use and the limit of use, and maintenance of the filter 10 is troublesome and inefficient.

Further, both the above-mentioned wet type and dry type removing devices are fixed types that are installed at fixed positions, so that there is a problem that space is restricted. That is, the working area of the removing device is limited to the vicinity thereof, and the place of the spray coating work by the coating gun G is limited to the vicinity of the removing device. So, for example,
If it is necessary to change the installation location of the removal device in response to a change in the coating work line, or if the removal capacity of the existing removal device is insufficient and it is changed to a new one, etc.
It took a long time for the installation work, and during that time, there were cases where it hindered other work.

Such problems have been pointed out in the conventional paint mist removing device.

The present invention has been made to solve the above-mentioned conventional problems in view of the above circumstances, and a predetermined water tank, a pump, a first partition with an opening, a nozzle, a second partition, an eliminator, and the like are provided. , Built in order, using a tank equipped with an intake port, an exhaust port, and a fan part, and providing a traveling means for this, the structure is simple and the paint mist removal efficiency is excellent, and it is portable. The purpose is to propose a paint mist removal device that does not have a place restriction.

"Means for Solving Problems" The technical means of the present invention for achieving this object are as follows.

This paint mist removing device removes paint mist generated when spray coating is performed by a coating gun.

The removing device has the following tank, traveling means, nozzle, and eliminator.

The tank is hermetically sealed by including an intake port for outside air containing paint mist, an exhaust port corresponding to the intake port, and a fan unit.

The traveling means includes traveling elements such as wheels attached to the bottom of the tank.

The nozzle and the eliminator are sequentially installed in the tank. The nozzle injects water in a shower shape into the flow of outside air including the sucked paint mist. The eliminator is composed of a large number of plates inclined with respect to the flow direction of the outside air.

In addition to these, the removing device further has the following configuration. That is, further, a water tank which is formed in the lower part of the tank, in which water for water supply / drainage that can be appropriately adjusted and exchanged is stored and water jetted by the nozzle drops, and a water for circulation in the water tank are piped. Between the nozzle and the eliminator, a pump for pressure-feeding to the nozzle through the first partition, a first partition wall vertically partitioning the inside of the tank from above the water surface of the water tank, and a lateral opening having an opening for allowing the nozzle to penetrate. And further partitioning the inside of the tank, and having a second partition wall formed with a predetermined distance from the water surface of the water tank. The opening of the first partition wall has a generally short tubular shape with a gradually decreasing diameter, and the nozzle laterally penetrating the inside of the opening ejects water from an injection port formed in multiple layers. Injecting in the form of a multi-layered water film toward the surrounding first partition wall forming the opening, and the runner of the running means is composed of wheels, and can be freely moved to a necessary painting work place. There is.

"Operation" Since the present invention comprises such means, it operates as follows.

Outside air including resin mist and paint mist such as dust generated when spray painting is performed by a coating gun flows into the tank from the intake port by the drive of the fan unit and flows to the exhaust port.

Then, first, the flow of the outside air in the tank containing the paint mist is guided to the first partition wall toward the opening, and collectively passes through the lateral opening and the vicinity of the nozzle loosely penetrated by the opening. . At that time, the nozzle, from the injection port formed in the multi-layer, the injection water pressure-fed by the pump in a substantially vertical water film shape of the multi-layer, that is, to block the flow of outside air passing therethrough,
The jetting is performed toward the first partition wall forming the surrounding opening. Accordingly, the paint mist in the outside air is sprayed together with the sprayed water on the surrounding first partition wall, collides with the sprayed water, and is forcibly attached to the sprayed water, and is dropped into the water tank together with the sprayed water and removed. . In this way, the paint mist is reliably separated from the air by the jet water.

Next, the flow of the outside air from which the paint mist has been removed as described above is guided to the second partition wall and passes through the eliminator while containing the mist-like water generated by the jet water. Collides with the plate of the eliminator and becomes droplets, which fall into the water tank and are removed. In this way, mist-like water and air are reliably separated, and the outside air that has flowed into the tank becomes clean air and is exhausted to the outside by the fan unit via the exhaust port.

As described above, this removing device is a tank provided with a predetermined water tank, a pump, a first partition with an opening, a nozzle, a second partition, an eliminator, and the like, and an intake port, an exhaust port, a fan part, and the like. It has a simple structure, does not require connection work, installation work, foundation work, etc., and can be operated in a short time. No additional equipment is required. Used as. Moreover, although the space surface is limited to a compact size because it is a single portable type, the combination of the predetermined opening and the nozzle provides excellent paint mist removal efficiency, and the paint mist is reliably removed. The removing device itself is portable due to the wheels of the traveling means, so there is no restriction on the location, and it can be easily moved to a necessary place for removal of paint mist, and maintenance and inspection are easy. Efficiency is also improved.

[Examples] The present invention will be described in detail below based on the examples shown in the drawings.

1, 2, and 3 show an embodiment of the present invention, in which FIG. 1 is a front sectional view thereof, FIG. 2 is a front external view thereof, and FIG.
The figure is a side view thereof.

This removing device removes the paint mist M generated when the object O, which is the object to be coated, is spray-coated with the coating gun G.

The tank 13 is provided with an intake port 14 for the outside air containing the paint mist M, an exhaust port 15 corresponding to the intake port 14 and a fan section 16, and is sealed.

The tank 13 has, for example, a closed rectangular tube shape, and an inlet / outlet 17 for cleaning and checking the inside is provided together with its door.

The intake port 14 is formed as an opening in, for example, a side wall of the tank 13, and a blow-out hood 19 having a large diameter toward the paint mist M is connected to the outside of the intake port 14 via a filter 18. At the same time, a large number of inclined plates 20 for preventing water splashing from the inside of the tank 13 are connected inside the intake port 14. The filter 18 functions to capture the paint mist M.

A water tank 21 is formed in the lower portion of the tank 13, and the water W, which is appropriately supplied and drained by a water supply valve 22 and a drain valve 23, is stored in the tank 13 for replacement and stored. The water W for circulation is pumped by the pump 24, and the pipe 25
Via the water tank 21 'at the top to become the water wall 26, or the water is showered by the nozzle 27 and becomes the sprayed water 28.
It falls inside and is circulated.

The nozzle 27 sprays the sprayed water 28 in the form of a shower toward the flow of the outside air containing the sucked paint mist M, so that the paint mist M is adhered and removed. Reference numeral 29 is a first partition wall for partitioning the inside of the tank 13. The first partition wall 29 is formed with an opening 30 for allowing the nozzle 27 to pass through, and is provided with the upper water tank 21 '.

As shown in FIG. 1, the first partition 29 vertically partitions the inside of the tank 13 from the surface of the circulating water W in the water tank 21. Also, such an opening formed laterally in the first partition 29.
As shown in FIG. 1 and FIG. 4, the reference numeral 30 is a horizontal short tubular shape in which the diameter is gradually reduced toward the downstream side in order to allow the nozzle 27 to penetrate.

In the illustrated example, a so-called ET nozzle (ENVIROTECT NOZZLE of BINKS) is used as this nozzle 27, and as shown in the enlarged view of FIG. Also forms a multi-layered water film such as 4 to 5 layers having a substantially conical shape. And due to the performance of the nozzle 27,
Since the removal efficiency of the paint mist M largely depends on the nozzle 27, other than the illustrated ET nozzle, various nozzles having various shapes, structures, arrangement positions, and the number of stages are appropriately selected and used.

However, in any case, as shown in FIGS. 1 and 4, the nozzle 27 sprays the jetted water 28 from a jet port formed in multiple layers such as 4 to 5 layers in a substantially vertical water film shape. The jetted water 28 is jetted toward the periphery of the opening 30, that is, the upper and lower first partition walls 29.

A second partition for further partitioning the inside of the tank 13 is provided downstream of the nozzle 27.
A partition wall 31 is formed, and a predetermined gap is formed between the lower end of the second partition wall 31 and the water surface of the water tank 21, which guides the flow of outside air containing mist-like water to the eliminator 32 near the nozzle 27.

As shown in the enlarged view of FIG. 5, the eliminator 32 is composed of a large number of plates 33 inclined with respect to the flow direction of the outside air. The flow of the outside air hits the plate 33 and is bent and passes. However, the mist-like water hits the plate 33 to form a water drop D, which drops into the water tank 21 and is removed.

In the illustrated example, the exhaust port 15 is formed as an opening in the top wall of the tank 13 facing the eliminator 32, an exhaust duct 34 is connected to the outside thereof, and a fan unit 16 is incorporated in the exhaust duct 34. The section 16 is driven by the motor 35.

The fan unit 16 functions to take in air from the tank 13 and exhaust it to the outside, thereby forming a flow of outside air in the tank 13.

The traveling means 36 includes a traveling element 37 such as a wheel attached to the lower portion of the tank 13, for example, a bottom wall, and the traveling element 37 is a bracket.
It is attached to the tank 13 by 38.

The above is the description of the configuration.

Next, the operation and the like will be described.

The paint sprayed by the coating gun G, other than the paint applied to the outer surface of the object O, dust, and the like, becomes a mist-like paint mist M and drifts in the open air.

Then, by driving the fan unit 16 by the motor 35, the outside air including the paint mist M is sucked into the tank 13 from the suction port 14 via the hood 19 and the filter 18. Here, in the illustrated example, the paint mist M is first roughly captured by the filter 18, and the paint mist M that cannot be completely captured by the filter 18 is stored in the tank.
Inflow into 13.

Next, the flow of the outside air in the tank 13 containing the paint mist M passes through the water wall 26 and is then guided to the first partition wall 29 to be guided to the nozzle.
Pass around 27.

Here, the paint mist M is forcibly adhered to the shower-like jet water 28 jetted from the nozzle 27 and the water wall 26 in the illustrated example, and falls into the water tank 21 to be removed. That is, the water W pumped from the water tank 21 by the pump 24 is
28, from the injection port of the nozzle 27 formed in multiple layers,
It is jetted toward the first partition wall 29 surrounding the opening 30 so as to block the flow of outside air in the form of a multi-layered substantially vertical water film. Therefore, the paint mist M passing laterally is surely sprayed to the surrounding first partition wall 29 together with the substantially vertical jet water 28. And the paint mist M is
While colliding with the first partition wall 29, the water is forcibly attached to the jet water 28, and falls into the water tank 21 together with the jet water 28. In this way, the paint mist M is reliably separated from the air mainly by the jet water 28.

The flow of the outside air from which the paint mist M has been removed by passing through the jet water 28 contains mist-like water generated by the jet water 28.

Then, the flow of the outside air is guided to the second partition wall 31 and passes through the eliminator 32. The above-mentioned mist-like water hits the plate 33 of the eliminator 32 to form a water drop D, which drops into the water tank 21 and is removed. In this manner, the eliminator 32 turns the mist-like water into water droplets D, which is reliably separated from the air.

As described above, the outside air that has flown into the tank 13 becomes clean air and is discharged from the exhaust port 15 through the exhaust duct 34 by the fan unit 16 to the outside of the system.

As described above, this removing device is provided with a predetermined water tank 21, pump 24,
The first partition 29 with the opening 30, the nozzle 27, the second partition 31, the eliminator 32, etc. are sequentially installed, and the intake port 14,
It uses a tank 13 equipped with an exhaust port 15, a fan unit 16, etc., and has a simple configuration, and it can operate in a short time without the need for connection work, installation work, foundation work, etc. Yes, it is used independently as a separate removal device by injecting circulating water. Moreover, although the space surface is limited to a compact size because it is individually portable, the combination of the predetermined opening 30 and the nozzle 27 provides excellent removal efficiency of the paint mist M, and the paint mist M is reliably removed. The removing device is used by the traveling element 37, which is a wheel of the traveling means, to remove the paint mist M easily because it can be easily moved to a necessary place without any restrictions because it is portable. , Maintenance and inspection is easy and efficiency is improved. Therefore, for example, not only placement on the floor but also moving placement to a three-dimensional high place is possible, and it is also possible to move to the location of the existing removal device and additionally use it.

Therefore, for example, not only the conventional arrangement on the floor but also a three-dimensional moving arrangement to a high place is possible.

Further, for example, in the case of the existing fixed type removal device, if the removal ability of the paint mist M is insufficient and the usage conditions are not satisfied, the removal device according to the present invention is moved to the location of this existing removal device, In addition, it becomes possible to improve the removal ability of the paint mist M as a whole and to satisfy the use condition. FIG. 6 shows the tenth
An example in which the conventional removing apparatus of the present example is connected to the removing apparatus of the present embodiment is shown. That is, the exhaust port 11 according to the present embodiment is connected to the exhaust port 11 according to the conventional example via the duct 39.

Reference Example FIGS. 7 and 8 show a reference example of the paint mist removing apparatus according to the present invention.

This intake port 14 is formed on the top wall of the tank 13, and the intake port 14
A flange 40 for connecting a duct is formed on the outer side of the above, and only a central partition 41 conforming to the above-mentioned second partition 31 is provided as a partition within the tank 13. Therefore, the outside air flowing into the cylindrical tank 13 from the intake port 14 is guided toward the exhaust port 15 through the gap between the central partition wall 41 and the water surface of the water tank 21.

A nozzle 27 and an eliminator 32 are arranged in this order from the water tank 21 side to the exhaust port 15 side. As the nozzle 27,
A general one is used, with the injection port facing downwards,
Although they are provided in rows, they may be appropriately arranged in two horizontal rows or the like. The flow of the outside air including the paint mist M passes through the nozzle 27 and the eliminator 32, and is discharged to the outside as clean air from the exhaust port 15.

Note that the configurations, functions, operations, and the like of other members are the same as those in the above-described embodiment, and therefore, the same reference numerals are given and the description thereof is omitted.

"Effects of the Invention" As described above, the paint mist removing device according to the present invention is provided with a predetermined water tank, a pump, a first partition with an opening, a nozzle, a second partition, an eliminator, and the like in order. By using a tank equipped with an intake port, an exhaust port, and a fan unit, and providing a traveling means on this, the structure is simple and the paint mist removal efficiency is excellent. The paint mist can be removed by moving to a necessary place as appropriate. Therefore, foundation work and the like are unnecessary, installation costs can be significantly reduced, installation work can be performed in a short time such as several hours, and maintenance work is easy and efficiency can be improved. Furthermore, since it is portable, its working area, that is, the place of painting work is not limited, its installation location can be easily changed, it can be moved to a high place, and the lack of capacity of existing removal equipment can be quickly and easily supplemented. It is also possible to effectively prevent pollution caused by paint mist, and the problems existing in this type of removing device of the conventional example are swept away at once. There is.

[Brief description of drawings]

1, 2, and 3 show an embodiment of a paint mist removing device according to the present invention, in which FIG. 1 is an enlarged front sectional view thereof, FIG. 2 is an external front view thereof, and FIG. Is a side view thereof. FIG. 4 is an explanatory view showing an example of the nozzle, and FIG. 5 is a perspective view showing an example of the eliminator. FIG. 6 is a front sectional view showing an example of use of this embodiment. 7 and 8 show a reference example of the present invention, FIG. 7 is a front sectional view thereof, and FIG. 8 is a side sectional view thereof. 9 and 10 show a conventional paint mist removing device, FIG. 9 is a wet type, and FIG. 10 is a front sectional view of a dry type. 13 ... Tank 14 ... Intake port 15 ... Exhaust port 16 ... Fan section 27 ... Nozzle 28 ... Jet water 32 ... Eliminator 33 ... Plate 36 ... Traveling means 37 ... Traveling element G ... Painting gun M ... Paint mist

Continuation of the front page (56) References JP-A-60-137468 (JP, A) JP-A-57-156016 (JP, A) JP-A-56-152760 (JP, A) Actual development Sho-57-191474 (JP , U) Sumiko Sho 46-28915 (JP, Y1)

Claims (1)

[Claims] 1. A device for removing paint mist generated when spray coating is performed by a paint gun, comprising an intake port for outside air containing the paint mist, an exhaust port corresponding to the intake port, and a fan section. A traveling tank equipped with a sealed tank, a traveling element attached to the lower part of the tank, a nozzle for injecting water into the flow of the inhaled outside air, which is sequentially incorporated in the tank, and a nozzle for the outside air. With an eliminator consisting of many plates inclined to the flow direction,
Further, a water tank formed in a lower portion of the tank, in which water for water supply / drainage that can be appropriately adjusted and exchanged is stored, and water jetted by the nozzle drops, and a circulation in the water tank. A pump that pumps water for use to the nozzle through a pipe,
The tank is vertically partitioned from above the water surface of the water tank, and a first partition is formed laterally with an opening for allowing the nozzle to pass through, and the tank is further partitioned between the nozzle and the eliminator. And a second partition wall formed with a predetermined space between the first partition wall and the water surface of the first partition wall. The horizontally penetrating nozzle jets water from a jet port formed in multiple layers in the form of a multi-layered water film toward the first partition wall surrounding the opening portion, and also in the traveling means. The paint mist removing device is characterized in that the runner is composed of wheels and can be freely moved to a required painting work place.