JP3899957B2 - Flush booth equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a rinsing apparatus in which an excess of a coating agent such as an adhesive or a paint sprayed on an object to be coated is collected by a water film formed on a wall surface of a screen wall in a rinsing booth. It relates to booth equipment.
[0002]
[Prior art]
Conventionally, a washing booth apparatus as shown in FIG. 5 is used as an apparatus for applying an adhesive, paint, or the like to an object to be coated.
In the figure, reference numeral 200 denotes an object to be applied with an application agent such as an adhesive or paint, and 202 denotes an application agent such as adhesive or paint sprayed toward the object 200 to be sprayed. A spraying device such as a spray gun.
Reference numeral 204 denotes a washing booth having a hood 206.
[0003]
Reference numeral 208 denotes a water tank installed on the floor, and 210 denotes an exhaust duct provided at the upper part of the flush booth 204.
An exhaust fan (not shown) is provided inside the exhaust duct 210, and the exhaust fan is rotated by a motor 212.
[0004]
A screen wall 214 is provided vertically inside the flush booth 204, and an exhaust passage 216 communicating with the exhaust duct 210 is formed on the back side (left side in the figure).
A water receiving chamber 218 is provided on the upper back side of the screen wall 214, and the water in the water receiving chamber 218 overflows and flows down to the wall surface of the screen wall 214, and flows down to the wall surface of the screen wall 214. A water film is formed.
[0005]
220 is a pumping pump, and water (circulated water) in the water tank 208 is pumped by the pumping pump 220 to the upper part of the flush booth 204 through the pipe 222.
The pipe 222 includes a vertical pipe 224 and a horizontal pipe 228 connected to the vertical pipe 224 via a cheese 226, and the first branch pipe 230 and the second branch pipe 232 are further connected to the horizontal pipe 228. And branch out in a vertical direction and a horizontal direction.
[0006]
Water discharge portions 234 and 236 are provided at the tip portions of the first branch pipe 230 and the second branch pipe 232, respectively.
As shown in FIG. 5 (B), these water dischargers 234 and 236 flow out a large number of small holes (hole diameters are, for example, φ10 to 15 mm) provided at a predetermined pitch in a direction perpendicular to the paper surface in FIG. 5 (A). Holes 238 are provided, and the pumped-up water is allowed to flow out (water discharge) from the water discharge port formed by these outflow holes 238.
[0007]
The first branch pipe 230 and the second branch pipe 232 are also provided with a valve 240 upstream of the water discharge parts 234 and 236, and the first branch pipe 230 and the second branch are operated by operating the valves 240. The amount of water in the pipe 232 can be adjusted.
In this flush booth apparatus, the water pumped up from the water tank 208 by the pumping pump 220 through the pipe 222 is discharged from the water discharge portions 234 and 236 at the respective leading ends of the first branch pipe 230 and the second branch pipe 232. .
[0008]
Thus, the water discharged from the water discharge portion 234 at the tip of the first branch pipe 230 is once stored in the water receiving chamber 218 and overflows the water receiving chamber 218 from the upper end portion of the screen wall 214 to the screen wall 214. It flows down along the wall surface of the water and forms a water film there.
And by the water film, a part of the surplus of the coating agent sprayed from the spraying device 202 onto the article to be coated 200 is collected there and dropped into the lower water tank 208.
[0009]
On the other hand, water discharged from the water discharge portion 236 at the tip of the second branch pipe 232 flows from the right to the left in the drawing along the slope of the upper surface of the hood 206, and is supplied into the exhaust passage 216 as collected water from the tip. Is done.
And the remaining part of the excess coating agent flowing through the exhaust passage 216 is collected by the collected water.
[0010]
That is, of the coating agent sprayed from the spraying device 202 toward the object to be coated 200, the surplus that did not adhere to the object to be coated 200 and was not collected by the water film on the screen wall 214 is the screen wall. Through the lower end of 214, the air is sucked into the exhaust passage 216, and the excess of the coating agent sucked into the exhaust passage 216 is collected by the collected water supplied to the exhaust passage 216.
The exhaust gas passing through the exhaust passage 216 to the exhaust duct 210 is further purified by passing through a purification filter or the like, and then exhausted to the outside.
[0011]
[Problems to be solved by the invention]
In this seed water washing booth device, the excess of the coating agent (mist) is mixed into the water in the water tank 208 and the concentration gradually increases. That is, the degree of contamination of the circulating water circulating through the flush booth is gradually increased.
For this reason, the dirt adheres to the inside of the pipe 222 while water is flowing through the pipe 222, and the flow rate of the water gradually decreases, so that the water does not sufficiently flow.
In particular, clogging due to adhesion and accumulation of dirt is remarkable in the bent portion or the branched portion of the pipe 222 or the small-diameter outflow hole 238 in the valve 240 and the water discharge portions 234 and 236.
[0012]
Thus, when clogging occurs in this way, the ratio of the amount of water discharged from the water discharger 234 and the amount of water discharged from the water discharger 236, that is, the water supplied for forming the water film, and the collected water in the exhaust passage 216 The distribution ratio with the water supplied for use changes from the initially set ratio, which causes a problem that the collection efficiency of the coating agent decreases.
[0013]
Thus, if the collection efficiency of the coating agent is lowered, the surrounding environment is deteriorated, and the coating agent that has not been collected adheres to and accumulates on the inner surface of the exhaust duct 210 or the exhaust fan. This causes problems such as fire.
[0014]
Furthermore, since clogging is likely to occur as described above, frequent cleaning is necessary in a short cycle, and maintenance of the circulating system of circulating water is difficult, and this is an obstacle to productivity. In order to prevent the degree of contamination of the circulating water from being increased, it is necessary to replace the circulating water in a short cycle, and accordingly, the problem of the industrial waste treatment of the water used for collecting the coating agent is also large. It becomes a problem.
[0015]
[Means for Solving the Problems]
The flush booth apparatus of the present invention has been devised to solve such problems.
Thus, according to the first aspect of the present invention, a water film is formed on the wall surface of the screen wall by drawing the circulating water in the water tank and flowing it down along the screen wall provided in the washing booth. A part of the excess of the sprayed coating agent is collected by the water film, and the other part is sucked into the exhaust passage and then collected by the collected water supplied to the exhaust passage. In the flush booth apparatus, the weir that is pumped from the water tank and discharged from the water outlet is distributed to the water film forming and the collected water in the exhaust passage, and the water from the water outlet is the weir. A guide channel that feeds and guides the water to the weir, and supplies a part of the water supplied and guided to the weir to the upper part of the screen wall for forming the water film through an opening formed in the guide channel. Overflowing the weir to the exhaust passage Characterized in that none to provide a water collecting.
[0016]
According to a second aspect of the present invention, in the first aspect of the present invention, means for adjusting the amount of supplied water is provided for forming the water film and collecting water.
[0017]
According to a third aspect of the present invention, in any one of the first and second aspects, the guide channel is a slope, and the weir is provided at a lower end portion of the slope.
[0018]
According to a fourth aspect of the present invention, in the third aspect of the present invention, at least a portion of the opening on the side of the weir is widened away from the weir.
[0019]
According to a fifth aspect of the present invention, in any one of the third and fourth aspects, the slope is formed by a hood of the flush booth.
[0020]
According to a sixth aspect of the present invention, in any one of the first to fifth aspects, a small-volume water receiving chamber is formed below the opening, and water supplied through the opening is supplied from the water receiving chamber to the water receiving chamber. Overflowing to the upper part of the screen wall, and a rectifying plate enters the water receiving chamber downward, and the water receiving chamber is divided into a front chamber and a rear chamber by the rectifying plate; It is characterized in that the water in the chamber passes under the current plate and flows into the rear chamber and then overflows from the rear chamber.
[0021]
[Operation and effect of the invention]
As described above, the present invention supplies and guides the water discharged from the water outlet to the weir in the guide channel, and supplies a part thereof for forming a water film through the opening formed in the guide channel. The part is supplied as collected water to the exhaust passage by overflow of the weir. That is, the water is distributed by the weir to the formation of the water film and the collected water in the exhaust passage.
[0022]
Such a flush booth apparatus of the present invention is provided with a separate water discharge part for forming a water film and a dedicated water discharge part for collecting water in the exhaust passage separately as in the conventional flush booth apparatus shown in FIG. Therefore, it is not necessary to supply water to the dedicated water discharge section through the pipe. If water is simply discharged from the water discharge port, the water is automatically generated by the action of the guide flow path and the weir to capture the water film and the exhaust passage. It is distributed for collecting water.
According to the present invention, the distribution ratio of the water for forming the water film and the collected water in the exhaust passage is maintained at the initially set distribution ratio, so that there is no change. Thus, the collection efficiency of the excess coating agent can be maintained high.
[0023]
As a result, the coating agent that has failed to collect can adhere to the inner surface of the exhaust duct and the exhaust fan and accumulate, which can cause a fire. Problems such as deterioration of the environment can also be solved.
[0024]
In addition, as in the conventional flush booth device shown in FIG. 5, dirt adheres to and accumulates on the bent portion or branch portion of the pipe or the water discharge portion or valve at the tip, thereby preventing water from flowing with a sufficient amount of water, In addition, since there is no particular problem of reducing the collection efficiency due to that, it becomes easy to maintain and manage the circulation system of the wash water, and it becomes unnecessary to replace the circulation water in a short cycle. Advantages such as fewer problems in waste disposal can be obtained.
[0025]
In the present invention, it is possible to provide means for adjusting the amount of water supplied for forming a water film and for collecting water (Claim 2). The amount of water supplied for collecting water can be adjusted, and the distribution ratio can be easily adjusted appropriately when distributing the circulating water for forming a water film and for collecting water in the exhaust passage.
[0026]
In this case, the height of the weir can be adjusted, and the height adjusting means of the weir can be used as the supply water amount adjusting means.
Alternatively, the distance or height from the weir of the opening or the size of the opening can be adjusted, and the adjusting means can be used as the adjusting means for the amount of water to be supplied.
[0027]
In the present invention, the guide channel may be a slope, and a weir may be provided at the lower end of the slope (claim 3).
Further, in this case, the slope can be formed by a hood of a flush booth (Claim 5).
By doing in this way, a guide channel can be easily formed using a hood.
In addition, by forming the guide channel as a slope in this way, it becomes easy to uniformly supply water in the width direction of the screen wall or in the width direction of the exhaust passage.
[0028]
In the present invention, at least a portion on the dam side of the opening formed in the guide channel can be formed so as to widen with distance from the dam (Claim 4).
By doing so, it becomes possible to delicately balance the water distribution ratio between the water film formation and the collected water in the exhaust passage.
[0029]
Next, according to a sixth aspect of the present invention, a small-capacity water receiving chamber is formed below the opening, and a rectifying plate is made to enter the downward direction, and the rectifying plate is used to make the water receiving chamber into the front chamber and the rear chamber. In the front chamber, the water from the opening was received and the water in the front chamber passed through the bottom of the current plate and flowed into the rear chamber, and then overflowed from the rear chamber to the top of the screen wall. Is.
[0030]
For example, when the openings are provided at a predetermined pitch in the width direction of the screen wall, the amount of water flowing into the water receiving chamber is large in the opening portion and relatively small in the portion between the openings.
Therefore, if the water flowing into the water receiving chamber is allowed to overflow to the upper part of the screen wall as it is, there is a lot of overflow water in the portion where the opening is located in the width direction of the screen wall, and the portion between the opening and the opening. In this case, a relatively small phenomenon occurs.
[0031]
However, according to claim 6, the water receiving chamber is divided into the front chamber and the rear chamber by the current plate, and after receiving water from the opening once in the front chamber, this is passed under the current plate and transferred to the rear chamber. When the upper overflow is performed, the amount of water overflowing from the water receiving chamber is made uniform over the entire width of the screen wall, so that a water film can be formed uniformly over the entire width of the screen wall, and the excess amount of the coating agent is efficiently increased. It can be collected.
[0032]
【Example】
Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, reference numeral 10 denotes an object to be applied with an application agent such as an adhesive or paint, and reference numeral 12 denotes a spray gun or the like that sprays the application agent in a spray form toward the object 10. Device.
Reference numeral 14 denotes a water washing booth having a hood 16 at the top.
[0033]
18 is a water tank installed on the floor, and 20 is an exhaust duct provided in the upper part of the flush booth 14.
An exhaust fan (not shown) is provided inside the exhaust duct 20, and the exhaust fan is rotated by a motor 22.
[0034]
A screen wall 24 is provided vertically inside the flush booth 14, and an exhaust passage 26 communicating with the exhaust duct 20 is formed on the back side (left side in the figure).
A water receiving chamber 28 is provided on the upper back side of the screen wall 24, and the water in the water receiving chamber 28 overflows and flows down to the wall surface of the screen wall 24, and water flows on the wall surface of the screen wall 24 by the flowing water. A film is formed.
The screen wall 24 is made of a plate, and a handle 30 is provided on the rear surface thereof as shown in FIGS.
[0035]
Furthermore, the upper end part and the vicinity of the lower end part are each provided with a locking part 32 that is bent back to the rear side, and the upper end of the front part of the water receiving chamber 28 at the locking part 32 of the upper end part. In the locking portion 32 in the vicinity of the lower end portion, it is locked to a locked portion 34 provided in the flush booth 14.
That is, in this example, the screen wall 24 can be easily detached from the rear opening 36 (see FIG. 3) described later of the flush booth 14 with the handle 30.
[0036]
In FIGS. 1 and 3, reference numeral 38 denotes a detachable cover for closing an opening 36 formed in the rear portion of the flush booth 14, and a lower end portion of the latched portion 40 provided in the main body portion of the flush booth 14. The upper end portion of the flushing booth 14 is engaged with the main body portion of the flush booth 14.
[0037]
Specifically, as shown in FIG. 3B, a lock lever 42 is rotatably provided around the shaft 44 at the upper end of the cover 38, and the lock lever 42 is operated by rotating the lock lever 42. The locking portion 46 at the tip of 42 is locked to a locked portion 48 provided at the edge of the opening 36, or the locking is released.
[0038]
In FIG. 1, reference numeral 50 denotes a pumping pump, and water (circulated water) in the water tank 18 is pumped by the pumping pump 50 through the pipe 52 to the upper part of the flush booth 14.
The pipe 52 has a vertical pipe 54 and a horizontal pipe 56, and a water discharge part 58 is provided at the tip of the horizontal pipe 56.
The water discharge portion 58 is made of an elbow and has a single large water discharge port 60. The water discharger 58 is rotatable around an axis that is perpendicular to the paper surface in FIG.
That is, the angle of the water discharge port 60 can be adjusted around the axis.
[0039]
The water discharge port 60 discharges water to the inner surface of the front wall 62 of the flush booth 14 according to the direction, or when the water discharge portion 58 is at an obliquely downward angle shown in FIG. To discharge water.
As shown in FIG. 2, the water discharged from the water discharge unit 60 is perpendicular to the paper surface in FIG. 1 along the inner surface of the front wall 62 of the flush booth 14 or along the upper surface of the hood 16. It spreads in the width direction of the screen wall 24, and then flows down along the upper surface of the hood 16.
[0040]
The upper surface of the hood 16 forms a planar guide channel 64 that is inclined obliquely from right to left in the figure. The water discharged from the water outlet 60 is perpendicular to the paper surface in FIG. A) in the middle up and down direction, that is, in the width direction of the screen wall 24, and then flows downward along the inclined and planar guide channel 64.
[0041]
A weir 66 is provided at the lower end of the guide channel 64. The weir 66 is composed of a weir plate 68.
The weir plate 68 has a vertical plate portion 70 and an inclined portion 72, and the whole can be adjusted up and down, that is, the height of the weir 66 can be adjusted.
At the adjustment position, the dam plate 68 is fixed to the wall of the water receiving chamber 28 by screws 73. In this example, the height adjusting means of the weir plate 68 including the screw 73 constitutes the supply water amount adjusting means.
[0042]
As shown in FIG. 2B, a plate body 74 for forming a part of the guide channel 64 is provided inside the weir 66 (on the right side in the drawing).
The plate 74 is formed with an opening 76 for dropping the water flowing down the guide channel 64 downward.
Here, the openings 76 have a circular planar shape, and a plurality of openings 76 are formed at a predetermined pitch in the width direction of the screen wall 24 (perpendicular to the sheet surface in FIG. 2B) as shown in FIG. Has been.
[0043]
The plate body 74 is provided so that its position can be adjusted along the slope in the left-right direction in the drawing, that is, in the approaching / separating direction with respect to the weir 66, and in the adjustment position, the screw 80 is attached to the rear wall of the water receiving chamber 28. It can fix with respect to the formed diagonal bending part 78. FIG. In this example, the adjusting means for the position of the plate body 74 including the screw 80 together with the height adjusting means for the weir plate 68 constitutes the adjusting means for the supply water amount.
[0044]
The water receiving chamber 28 and the guide channel 64 shown in FIG. 2B extend in the direction perpendicular to the paper surface in the figure over the entire width of the screen wall 24.
A rectifying plate 84 extending obliquely downward from the hood 16 enters the water receiving chamber 28, and the rectifying plate 84 divides the interior of the water receiving chamber 28 into a front chamber 86 and a rear chamber 88. Yes.
[0045]
The front chamber 86 is a portion that receives water that has dropped from the opening 76, and the water that has dropped into the front chamber 86 subsequently passes under the current plate 84 and flows to the rear chamber 88. Overflowing to the upper end of the wall 24 forms a water film on the wall of the screen wall 24.
Here, when the water overflows from the rear chamber 88 to the wall surface of the screen wall 24, the rectifying plate 84 has a function of overflowing with a uniform amount of water over the entire width of the screen wall 24.
[0046]
In other words, when such a rectifying plate 84 is not provided, the water dropped into the water receiving chamber 28 overflows to the wall surface of the screen wall 24 as it is, and at this time, the water is evenly distributed in the width direction of the screen wall 24 from the water receiving chamber 28. There is a problem that it is difficult to overflow with the amount of water.
The openings 76 for dropping the water flowing down the guide channel 64 into the water receiving chamber 28 are intermittently provided at a predetermined pitch in the width direction of the screen wall 24, so that the water drops into the water receiving chamber 28. Water is more in the portion of the opening 76 and relatively less in the portion between the openings 76 and 76.
[0047]
In this case, if the rectifying plate 84 is not provided, the amount of overflow water from the water receiving chamber 28 to the screen wall 24 is increased at the position where the opening 76 is present, and the overflow water is formed between the openings 76 and 76. The amount of water becomes relatively small, that is, the amount of overflow water to the screen wall 24 becomes uneven in the width direction.
[0048]
However, the flow straightening plate 84 is provided so that the water receiving chamber 28 is divided into a front chamber 86 for receiving water dropped from the opening 76 and a rear chamber 88 as an overflow chamber, thereby making the screen wall 24 even in the width direction. The water from the water receiving chamber 28 can be overflowed by the amount of water.
[0049]
In the flush booth apparatus of this example, water to the water tank 18 is pumped up to the upper part of the flush booth 14 through the pipe 52 by the pumping pump 50, and discharged from the spout 60 having a large diameter at the tip.
The water discharged from the water outlet 60 hits the inclined and flat guide channel 64 (or the inner surface of the wall 62 at the front of the flush booth 14) and immediately spreads in the width direction of the screen wall 24, and the oblique guide flow as it is. It flows downward along the path 64.
[0050]
Since the weir 66 is provided at the lower end of the oblique guide channel 64, a water reservoir 82 is formed at the end of the guide channel 64 and inside the weir 66 (right side in the figure).
A part of the water flowing down along the guide channel 64 falls downward through the opening 76 formed in the plate body 74 and is received in the front chamber 86 of the water receiving chamber 28.
The other part overflows the weir 66 and flows along the inclined portion 72 of the weir plate 68, and is supplied as collected water to the exhaust passage 26 of FIG.
[0051]
That is, the water flowing down along the guide channel 64 is distributed by the weir 66 and the opening 76 for forming a water film on the wall surface of the screen wall 24 and for collecting water in the exhaust passage 26.
The distribution ratio is determined by the height of the weir 66, the size of the opening 76, and the separation distance of the opening 76 from the weir 66.
[0052]
Thus, the water dropped from the opening 76 to the water receiving chamber 28 flows from the front chamber 86 to the rear chamber 88 and overflows from the upper end onto the wall surface of the screen wall 24.
The overflowed water flows downward along the screen wall 24 and forms a water film on the wall surface of the screen wall 24.
[0053]
And the part (mist form) of the surplus which did not adhere to the to-be-coated object 10 among the coating agents sprayed toward the to-be-coated object 10 in FIG.
The water film in which the coating agent is collected falls as it is from the wall surface of the screen wall 24 to the lower water tank 18 and is circulated and used again as cleaning water.
[0054]
On the other hand, the water that overflows over the weir 66 is supplied to the exhaust passage 26 and is used for collecting the coating agent in the exhaust passage 26.
That is, of the coating agent sprayed from the spraying device 12 toward the object to be coated 10, the surplus remaining that did not adhere to the object to be coated 10 and was not collected by the water film on the wall surface of the screen wall 24. This part passes through the lower end of the screen wall 24 and is sucked into the exhaust passage 26, and flows upward through the exhaust passage 26 toward the exhaust duct 20.
[0055]
At this time, the collected water is supplied downward from the upper part of the exhaust passage 26, so that the coating agent in the exhaust gas flowing through the exhaust passage 26 is collected by the collected water and falls into the lower water tank 18. .
Then, the exhaust gas from which the coating agent has been removed is sucked up into the exhaust duct 20 and further purified by a purification filter or the like and then exhausted to the outside.
[0056]
In the case of the flush booth apparatus of this example as described above, a dedicated water discharge part 234 for forming a water film and a dedicated water discharge part for collecting water in the exhaust passage 216, as in the conventional flush booth apparatus shown in FIG. 236 is provided separately, and water is not supplied to the dedicated water discharge portions 234, 236 through the pipe 222, but if water is simply discharged from the water discharge port 60, the water is automatically supplied to the guide channel 64. By the action of the weir 66, it is distributed for forming a water film and for collecting water in the exhaust passage 26.
[0057]
Therefore, according to this example, the distribution ratio of the water for forming the water film and the collected water for the exhaust passage is stably maintained at the initially set distribution ratio, so that the water for cleaning is appropriate. And the collection efficiency of the excess coating agent can be kept high.
Therefore, according to this example, it is possible to solve the problem that the coating agent that has failed to be collected adheres to and accumulates on the inner surface of the exhaust duct and the exhaust fan and causes a fire. It can also solve problems that worsen the environment.
[0058]
In addition, as in the conventional flush booth device shown in FIG. 5, dirt adheres to and accumulates on the bent part or branch part of the pipe, or the outflow hole or valve in the water discharge part at the tip, so that the water does not flow with a sufficient amount of water. In addition to resolving problems such as reduced collection efficiency, it is easier to maintain and maintain the circulation system of cleaning water, and it is not necessary to replace the circulating water in a short cycle. Benefits that can be improved.
[0059]
In this example, since the height of the weir 66 can be adjusted, when distributing the circulating water for forming the water film and for collecting water in the exhaust passage 26, the distribution ratio can be easily and appropriately adjusted. Can be adjusted.
Further, since the guide channel 64 for guiding the water discharge toward the weir 66 is formed by the hood 16, the structure can be simplified and the guide channel 64 can be easily formed.
[0060]
Further, since the guide channel 64 has a slope and a plane shape having a width equal to or larger than that of the screen wall 24, the water discharged from the water discharge port 60 is distributed in the width direction of the screen wall 24 or the width direction of the exhaust passage 26. Has the advantage of being easy to supply evenly.
In the present invention, since the position of the opening 76 (position in the approaching / separating direction with respect to the weir 66) and the height can be adjusted, the position and height of the opening 76 can be adjusted to adjust the position of the weir 66. In addition to the height adjustment, there is an advantage that the distribution ratio when distributing water for forming the water film and for collecting water in the exhaust passage 26 can be adjusted more finely and easily.
[0061]
In addition, since the opening 76 has a circular shape in this example, that is, the portion on the side of the weir 66 widens as the distance from the weir 66 increases, the distribution of water can be finely balanced. .
[0062]
On the other hand, with respect to the water receiving chamber 28, the water that has fallen into the water receiving chamber 28 is rectified by the rectifying plate 84 that enters downward, and then overflowed from the rear chamber 88 in the width direction of the screen wall 24 with an equal amount of water. Therefore, the water film on the wall surface of the screen wall 24 can be formed uniformly over the entire width, and the collection efficiency of the coating agent by the water film can be increased.
[0063]
In the washing booth apparatus of this example, the screen wall 24 can be easily detached from the washing booth 14, and the removal can be performed through the opening 36 at the rear of the washing booth 14, so that the screen wall 24 becomes dirty. In some cases, there is an advantage that the maintenance can be easily performed.
[0064]
Although the embodiment of the present invention has been described in detail above, this is merely an example.
For example, in the present invention, only the height of the weir 66 can be adjusted according to circumstances, or only the position or height of the opening 76 can be adjusted. It is also possible to adjust the water distribution ratio by adjusting the opening area of the opening 76.
[0065]
Furthermore, the guide channel 64 can be provided in a form other than the flat surface and the inclined surface, or the shape of the opening 76 can be various shapes other than the circular shape, for example, the triangular shape shown in FIG. The present invention can be configured in various forms without departing from the gist of the present invention, such as other shapes.
[Brief description of the drawings]
FIG. 1 is an overall view of a flush booth apparatus according to an embodiment of the present invention.
FIG. 2 is a plan view of an opening and a peripheral portion and a sectional view of a water receiving chamber and the peripheral portion in the flush booth apparatus of the same embodiment.
FIG. 3 is an explanatory diagram of a screen wall detaching method in the flush booth apparatus of the same embodiment.
FIG. 4 is a diagram showing a main part of another embodiment of the present invention.
FIG. 5 is a view showing an example of a conventional flush booth apparatus.
[Explanation of symbols]
10 Workpiece
14 Flush booth
16 Food
18 Aquarium
24 screen wall
26 Exhaust passage
28 Receiving room
60 spout
66 weir
64 Guide channel
76 opening
84 Current plate
86 Front room
88 back room

Claims (6)

The excess of the coating agent sprayed toward the object to be coated is formed on the wall surface of the screen wall by pumping the circulating water in the water tank and flowing it down along the screen wall provided in the washing booth. In the washing booth apparatus that collects a part of the water film with the water film and sucks the other part into the exhaust passage and then collects the collected water supplied to the exhaust passage.
A weir that draws water from the water tank and is discharged from the water outlet into the water film formation and the collected water in the exhaust passage, and supplies and guides water from the water outlet toward the weir. A guide channel is provided, and a part of the water supplied and guided to the weir is supplied to the upper part of the screen wall through the opening formed in the guide channel, while the other part overflows the weir. A flush booth device characterized by being supplied to the exhaust passage as the collected water. 2. The flush booth apparatus according to claim 1, further comprising a supply water amount adjusting means for forming the water film and collecting water. The flush booth apparatus according to any one of claims 1 and 2, wherein the guide channel is an inclined surface, and the weir is provided at a lower end portion of the inclined surface. 4. The flush booth apparatus according to claim 3, wherein at least a portion of the opening on the side of the weir is widened away from the weir. 5. The flush booth apparatus according to claim 3, wherein the slope is formed by a hood of the flush booth. The water receiving chamber having a small capacity is formed below the opening according to any one of claims 1 to 5, and water supplied through the opening overflows from the water receiving chamber to an upper portion of the screen wall. And the current receiving chamber has a rectifying plate entering downward, the water receiving chamber is divided into a front chamber and a rear chamber by the rectifying plate, and the water in the front chamber is A flush booth device that passes through the bottom of the rear chamber and flows into the rear chamber and then overflows from the rear chamber.

Images