JP5291362B2 - Filling paint exhaust cleaning equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To uniformly spray a cleaning fluid to a filling material layer while increasing an area of a filling material layer for capturing paint mist present in a passing gas. <P>SOLUTION: The rechargeable device for paint exhaust cleaning is provided with an exhaust port 4 at a washing fluid plate 3 for forming the bottom portion of a spray paint range 2, and a cleaning fluid supply means 10 which has the filling material layer 5 for capturing the paint mist to pass the gas A including paint mist exhausted downward from the spray paint range 2 through the exhaust port 4 at the lower portion of the exhaust port 4, supplies the cleaning fluid W onto the plate of the cleaning fluid plate 3, and flows the cleaning fluid W from the cleaning fluid plate 3 onto the layer of the filling material layer 5 through the exhaust port 4. An inclined guiding portion 3B which is inclined downward toward a plate edge portion for forming an port edge of the exhaust port 4 and a dam-shaped splash guide 13 which splashes the cleaning fluid to the side of the exhaust port 4 by partially or wholly abutting the cleaning fluid W flowing down the inclined guide portion 3B are provided at the cleaning fluid plate 3. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a filling type paint exhaust cleaning apparatus that captures paint mist contained in exhaust from a spray painting area where spray painting work is performed and purifies the exhaust, and more specifically, a cleaning liquid that forms the bottom of the spray coating area An exhaust port is provided in the plate, and a coating layer for capturing paint mist that allows the gas containing the paint mist discharged downward from the spray coating area to pass through the exhaust port is provided below the exhaust port. The present invention relates to a filling type paint exhaust cleaning apparatus provided with cleaning liquid supply means for supplying a cleaning liquid to the top and flowing the cleaning liquid from a cleaning liquid plate through an exhaust port onto a filler layer.

  This type of filling paint exhaust cleaning device prevents the paint mist from adhering directly to the filler with the cleaning liquid by allowing the cleaning liquid to flow out from the cleaning liquid plate onto the filler layer and keeping the filler wet. However, the paint mist is efficiently trapped in the dispersed cleaning liquid in the filler layer, and this trapped paint mist is collected together with the flowing-down cleaning liquid. Conventionally, on the layer of the filler layer from the cleaning liquid plate through the exhaust port. As shown in FIG. 4, the cleaning liquid plate 3, which forms the rim of the exhaust port 4, is stretched over the filler layer 5 with the cleaning liquid plate 3 placed in a horizontal position. The weir S is provided on the edge of the plate, and the cleaning liquid W is discharged onto the filler layer 5 in a sprayed state by overflowing from the weir S.

  However, in this type of filling-type paint exhaust cleaning device, if there is direct paint mist adhesion to the filler 5a in the filler layer 5, the deposit of the attached paint proceeds early and frequent maintenance is required. Therefore, it is required to spray the cleaning liquid W uniformly over the entire surface of the filler layer 5 as much as possible. However, in the cleaning liquid outflow caused by the simple overflow from the weir S as described above, the expansion range of the cleaning liquid W in the outflow direction ( That is, the spraying range with respect to the filler layer 5 is limited. For this reason, the cleaning liquid W is sprayed over the entire surface of the filler layer 5 so that the coating mist adheres directly to the filler 5a. If it is going to prevent reliably, the filler layer 5 must be made small in area, and there existed a problem that the ventilation resistance (pressure loss) of the filler layer 5 became large and the fan power increased.

  In view of this situation, the main problem of the present invention is to effectively solve the above problems by rational improvements to the cleaning liquid plate.

As a first reference configuration for configuring the above-described filling type paint exhaust cleaning device,
An exhaust port is provided in the cleaning liquid plate that forms the bottom of the spray coating area, and a paint mist capturing filler layer that allows a gas containing paint mist discharged downward from the spray coating area to pass through the exhaust port is provided in the exhaust port. A filling type paint exhaust cleaning system provided with a cleaning liquid supplying means for supplying a cleaning liquid onto the plate of the cleaning liquid plate and causing the cleaning liquid to flow out from the cleaning liquid plate to the layer of the filler layer through the exhaust port. In the device
The cleaning liquid plate is provided with an inclined guide portion that is inclined downward toward a plate edge portion that forms the edge of the exhaust port, and a part or all of the cleaning liquid flowing down the inclined guide portion is collided with the exhaust port. A dam-like scattering guide that scatters toward the side may be provided .

In other words, according to the first reference configuration , the cleaning liquid that has gained momentum by flowing down the inclined guide portion collides with the weir-like scattering guide and is scattered on the exhaust port side so that the cleaning liquid is filled below the exhaust port. Since the liquid is sprayed to the layer, the far end of the spraying range can be further increased compared to the case where the cleaning liquid is sprayed to the filler layer by mere overflow from the weir as in the above-mentioned conventional device. It is possible to spray the cleaning liquid in a state where the cleaning liquid is more effectively dispersed by the collision with the scattering guide, thereby making the filler layer larger in area and reducing the required blower power, The cleaning liquid can be uniformly sprayed on the entire surface of the layer, which can more reliably prevent direct paint mist from adhering to the filler, which is a maintenance burden, and the uniform spray can capture the paint mist. Increase performance Door can be.

To configure the filling type paint exhaust cleaning device of the first reference configuration, as a second reference configuration,
You may arrange | position the said washing | cleaning liquid board in the state in which the board edge part of the said washing | cleaning liquid board is located in the state just above the horizontal side edge of the said filler material layer, or it .

That is, in the above-mentioned conventional apparatus, the cleaning liquid is sprayed as much as possible to the part away from the lateral side edge to the inner back side in the filler layer under the condition that the spraying range of the cleaning liquid is limited. Is extended to the upper part of the filler layer, but the liquid spraying range can be secured in a state where the distance of the spraying range is further increased by the first reference configuration, so that the edge of the cleaning liquid plate is filled. Even if the cleaning liquid plate is arranged in a state directly above or laterally outside the lateral side edge of the material layer, the portion away from the lateral side edge to the inner back side in the filler layer (that is, the plate edge portion) The cleaning liquid can be sprayed well to a portion far from the head.

  Then, by positioning the edge of the cleaning liquid plate directly above or laterally outside the lateral edge of the filler layer, the conventional apparatus is positioned below the cleaning liquid plate and shadows the cleaning liquid plate. As a result, the cleaning liquid can be sprayed well even in the vicinity of the lateral side edge of the filler layer, which was difficult to be sprayed. It can prevent more reliably that mist adhesion will arise.

As a third reference configuration, the filling type paint exhaust cleaning device of the first or second reference configuration is configured.
You may arrange | position the said scattering guide in the front-end | tip part of the said inclination guide part .

That is, according to the third reference configuration , the cleaning liquid in the most vigorous state by flowing down the inclined guide portion over its entire length is collided with the weir-like scattering guide at the tip end portion of the inclined guide plate and scattered toward the exhaust port side. Therefore, the above-described function of further dispersing the cleaning liquid while making the far limit of the spraying range farther can be expressed more effectively.

To configure the filling paint exhaust cleaning device of any of the first to third reference configurations, as a fourth reference configuration,
The scattering guide may be arranged in a plurality of stages in the downward direction of the cleaning liquid flow .

That is, according to the fourth reference configuration , the cleaning liquid that collides with the scattering guide on the upstream side in the downward direction of the cleaning liquid and the cleaning liquid that collides with the scattering guide on the downstream side and scatters, the momentum at the time of the collision Due to the difference and the difference in the pop-out position, the spraying range (spraying area) of each cleaning liquid can be shifted back and forth in the direction of the cleaning liquid outflow, which makes the spraying range of the cleaning liquid as a whole more effective against the filler layer. Can be expanded.

To configure the filling paint exhaust cleaning device of the fourth feature configuration, as a fifth reference configuration,
The scattering guides may be arranged in a zigzag shape in plan view .

According to the fifth reference configuration , the staggered arrangement of the scattering guides causes the spraying ranges (spraying areas) of the cleaning liquids scattered from the scattering guides to be arranged in a staggered manner at the center of the range. As a result, the spraying range of the cleaning liquid as a whole with respect to the filler layer can be more effectively expanded, and the uniformity of the spraying with respect to the filler layer can be ensured high even in a planar manner.

To construct a filling type exhaust gas cleaning apparatus of the fifth reference configuration, as a sixth reference configuration,
In the staggered arrangement of the scattering guides, the downstream cleaning liquid is applied to the downstream scattering guide at a position corresponding to the gap between the downstream scattering guides between the upstream scattering guide row and the downstream scattering guide row in the flow direction of the cleaning solution. A turning guide for turning to the side may be provided .

That is, according to the sixth reference configuration , in the staggered arrangement of the scattering guides in the plan view, the cleaning liquid that flows through the gap between the upstream scattering guides and spreads in the width direction is changed by the direction change by the direction change guide. It can be re-concentrated on the downstream side scattering guide side and can be surely collided with the downstream side scattering guide, whereby the spraying function can be further enhanced as a whole of the scattering guide staggered arrangement group.

To configure the filling paint exhaust cleaning device of any of the first to sixth reference configurations, as a seventh reference configuration,
A spray nozzle for spraying the cleaning liquid onto the filler layer may be provided on the lower surface side of the cleaning liquid plate .

That is, according to the seventh reference configuration , the uniformity of the cleaning liquid spray with respect to the filler layer can be further enhanced by the spraying of the cleaning liquid from the spray nozzle added to the spraying by the scattering guide.
(Characteristic configuration of the present invention)
Here, the first characteristic configuration of the present invention relates to a filling type paint exhaust cleaning device,
An exhaust port is provided in the cleaning liquid plate that forms the bottom of the spray coating area, and a paint mist capturing filler layer that allows a gas containing paint mist discharged downward from the spray coating area to pass through the exhaust port is provided in the exhaust port. A filling type paint exhaust cleaning system provided with a cleaning liquid supplying means for supplying a cleaning liquid onto the plate of the cleaning liquid plate and causing the cleaning liquid to flow out from the cleaning liquid plate to the layer of the filler layer through the exhaust port. A device,
The cleaning liquid plate is provided with an inclined guide portion that is inclined downward toward a plate edge portion that forms the edge of the exhaust port, and a part or all of the cleaning liquid flowing down the inclined guide portion is collided with the exhaust port. A weir-shaped scattering guide that scatters to the side of
This scattering guide is arranged in a plurality of stages in the downward direction of the cleaning liquid flow.
That is, according to the first characteristic configuration, the effects of the first and fourth reference configurations can be obtained together.
The second feature configuration of the present invention specifies an embodiment suitable for the implementation of the first feature configuration.
The scattering guides are arranged in a staggered pattern in plan view.
That is, according to the second characteristic configuration, the same effect as that of the fifth reference configuration can be obtained.
The third feature configuration of the present invention specifies an embodiment suitable for the implementation of the second feature configuration.
In the staggered arrangement of the scattering guides, the downstream cleaning liquid is applied to the downstream scattering guide at a position corresponding to the gap between the downstream scattering guides between the upstream scattering guide row and the downstream scattering guide row in the flow direction of the cleaning solution. This is in that a turning guide for turning to the side is provided.
That is, according to the third feature configuration, the same effect as that of the sixth reference configuration can be obtained.
A fourth characteristic configuration of the present invention relates to a filling type paint exhaust cleaning apparatus,
An exhaust port is provided in the cleaning liquid plate that forms the bottom of the spray coating area, and a paint mist capturing filler layer that allows a gas containing paint mist discharged downward from the spray coating area to pass through the exhaust port is provided in the exhaust port. A filling type paint exhaust cleaning system provided with a cleaning liquid supplying means for supplying a cleaning liquid onto the plate of the cleaning liquid plate and causing the cleaning liquid to flow out from the cleaning liquid plate to the layer of the filler layer through the exhaust port. A device,
The cleaning liquid plate is provided with an inclined guide portion that is inclined downward toward a plate edge portion that forms the edge of the exhaust port, and a part or all of the cleaning liquid flowing down the inclined guide portion is collided with the exhaust port. A weir-shaped scattering guide that scatters to the side of the
A spray nozzle for spraying the cleaning liquid onto the filler layer is provided on the lower surface side of the cleaning liquid plate.
That is, according to the fourth characteristic configuration, the same effect as that of the seventh reference configuration can be obtained.
The fifth characteristic configuration of the present invention specifies an embodiment suitable for implementation of any of the first to fourth characteristic configurations,
The cleaning liquid plate is disposed in a state in which the edge portion of the cleaning liquid plate is located directly above or laterally outside the lateral side edge of the filler layer.
That is, according to the fifth characteristic configuration, it is possible to obtain the same effect as the above-described second reference configuration.
The sixth characteristic configuration of the present invention specifies an embodiment suitable for the implementation of any of the first to fifth characteristic configurations,
The scattering guide is located at the tip of the inclined guide portion.
That is, according to the sixth feature configuration, the same effect as that of the third reference configuration described above can be obtained.

  In FIG. 1, reference numeral 1 denotes an article to be coated, and a cleaning liquid plate 3 is provided at the bottom of the spray coating area 2 where the article 1 is installed and sprayed, and the cleaning liquid plate 3 which is the bottom forming plate includes: An exhaust port 4 for discharging the paint mist generated in the spray coating area 2 together with the area air A is formed.

  Below the exhaust port 4, there is provided a filler layer 5 for capturing paint mist that allows the paint mist-containing air A discharged downward from the spray coating area 2 through the exhaust port 4 to pass therethrough, and passes through the filler layer 5. After the air A is received in the exhaust chamber 6, it is discharged to a predetermined location by the exhaust fan 8 through the rising exhaust path 7.

  The cleaning liquid plate 3 forms the main part of the paint exhaust cleaning device together with the filler layer 5, and this cleaning liquid plate 3 is located on both sides of the bottom of the spray coating area 2 in a water-filled state. The left and right water-filled pan portions 3A that receive the descent paint and the like, and the left and right tilt guide portions 3B that extend from the water-filled pan portions 3A and incline downward toward the exhaust port 4 are provided.

  Further, the cleaning liquid plate 3 has a plate edge portion (that is, a tip end portion of the inclined guide portion 3B) that forms the rim of the exhaust port 4 directly above or slightly outside the lateral edge of the filler layer 4. It is arranged to be located.

  The water-filled pan portion 3A is provided with a water supply portion 10 for supplying the wash water W to the upper surface side of the water-filled pan portion 3A as a wash water supply means, and at the edge of the inclined guide portion 3B side in the washing liquid plate width direction A continuous weir 11 is provided (in the depth direction in the figure), so that the water-filled pan portion 3A is kept in a water-filled state by supplying the wash water from the water supply unit 10, and the wash water W is overflowed from the weir 11 and inclined. By flowing down to the guide portion 3B and spraying the flowing wash water W onto the filler layer 5 through the exhaust port 4, a large number of fine solid fillers 5a forming the filler layer 5 are kept wet.

  That is, by keeping the filler 5a in a wet state in this way, the paint mist in the passing air A is prevented from adhering directly to the filler 5a, while the paint mist is dispersed in the filler layer 5. The cleaning water W is trapped, whereby the exhaust air A from the spray coating area 2 is purified in the process of passing through the filler layer 5, and the purified air A is discharged through the exhaust chamber 6 and the ascending exhaust path 7.

  In this example, the weir 11 is formed by projecting a base end side of a flat plate, which is a forming material of the inclined guide portion 3B, by a predetermined dimension above the water-filled pan portion 3A. Further, the ascending exhaust path 7 is provided with a water draining tool 7a for separating water droplets accompanying the passing air A from the passing air A.

  On the other hand, the washing water W falling from the filler layer 5 in a state where the paint mist is captured is received by the inclined bottom 6a of the exhaust chamber 6 and guided to the separation tank 12, and in the washing water W during the storage process in the separation tank 12. The paint mist is floated and separated as agglomerated paint sludge, and the wash water W from which the paint sludge has been separated and removed is sent to the water supply unit 10 to be reused or discharged to a predetermined location.

  As shown in FIGS. 2 and 3, the cleaning water W flowing down the inclined guide portion 3B of the cleaning liquid plate 3 is sprinkled on the filler layer 5, and the downflow cleaning water W collides with the inclined guide portion 3B as shown in FIGS. A dam-like (partitioned in this example) scattering guide 13 is provided on the side of the mouth 4, and specifically, the width direction of the inclined guide portion 3B at the intermediate portion of the inclined guide portion 3B in the downward direction of the washing water The upstream side guide 13A arranged in a line at a predetermined interval (width direction orthogonal to the washing water flow direction), and the inclined guide part 3B at the tip of the inclined guide part 3B that forms the edge of the exhaust port 4 The downstream scattering guides 13B arranged in a line at predetermined intervals in the width direction are provided.

  Further, these scattering guides 13A and 13B are arranged in a staggered pattern in which upstream scattering guides 13A and downstream scattering guides 13B are alternately positioned in the width direction of the inclined guide portion 3B in plan view.

  That is, the cleaning water W is scattered by colliding with the scattering guide 13 (13A, 13B), so that the cleaning water W is filled while spreading in both the cleaning liquid outflow direction and the inclined guide width direction perpendicular thereto. Although the water is sprayed on the material layer 5, the flushing water W that flows down to the middle of the inclined guide portion 3B and collides with the upstream scattering guide 13A by arranging the scattering guides 13 (13A, 13B) in a staggered manner as described above. As shown by the broken line in FIG. 1, the upstream side of the inclined guide part 3B flows to the edge of the inclined guide part 3B, and the difference in the momentum of the collision with the downstream washing water W that collides with the downstream scattering guide 13B The scattered washing water W from the scattering guide 13A has a watering range for the filler layer 5 close to the lateral edge of the filler layer 5, and the scattered washing water W from the downstream scattering guide 13B is scattered to the filler layer 5. All the fillers that form the filler layer 5 by spraying the cleaning water W uniformly over the entire filler layer 5 so that the range is closer to the center (inward) of the filler layer 5. 5a is kept in a proper wet state.

  In the staggered arrangement of the scattering guides 13 as described above, the flowing-down cleaning liquid W is applied to a portion close to the downstream scattering guide 13B between the upstream scattering guide 13A row and the downstream scattering guide 13B row. A screen-shaped diverting guide 13C is provided that causes a collision to disperse part of the airflow toward the exhaust port 4 and to change the flow direction of the remaining portion toward the downstream scattering guide 3B. The washing water W that flows through the gap between the side scattering guides 13A and spreads in the width direction is also surely scattered to the exhaust port 4 side.

  Further, on the lower surface side of the inclined guide portion 3B, a watering nozzle 14 for sprinkling the cleaning water W onto the layer of the filler layer 5 is provided, and the water sprayed on the filler layer 5 is sprinkled from the watering nozzle 14. This further improves the uniformity of the water spray nozzle 14 and prevents the paint mist from adhering to the water spray nozzle 14 itself by disposing the water spray nozzle 14 on the lower surface side of the inclined guide 3B.

An example of the dimensions of each guide in this example is as follows.
Length of inclined guide part 3B (downward direction of washing water): 250 mm
Length of upstream scattering guide 13A (inclination guide width direction): 30 mm
Gap between upstream scattering guides 13A: 70 mm
Length of downstream scattering guide 13B (inclination guide width direction): 70 mm
Gap between downstream scattering guides 13B: 30 mm
Deflection guide 13C length (inclination guide width direction): 35mm
Height of each scattering guide 13A, 13B and turning guide 13C: 15 mm

[Another embodiment]
In the above-described embodiment, the example in which the scattering guide 13 is provided in two stages in the washing water flow direction is shown, but instead of this , three or more stages may be provided.

  Further, instead of dispersing the scattering guides 13 at each stage in the width direction of the inclined guide portion 3B at predetermined intervals, the scattering guides 13 may be continuous in the width direction of the inclined guide portion 3B.

  The specific shapes and structures of the scattering guide 13 and the diverting guide 13C can be variously changed. For example, in the above-described working gas, the scattering guide 13 and the diverting guide 13C are screened in a vertical posture with respect to the inclined guide portion 3B. However, the scattering guide 13 and the diverting guide 13C of each part may be different from each other in height, length, or inclination angle.

  In the above-described embodiment, an example in which water is used as the cleaning liquid W has been described. The paint mist-containing gas A to be purified may be other than air.

  The filling-type paint exhaust cleaning apparatus according to the present invention can be applied to the coating of various articles, and the structure of the entire coating equipment including the coating section is not limited to the structure shown in the above-described embodiment, and various modifications are possible. It is.

Cross-sectional view showing the overall configuration of the device Cross section of cleaning liquid plate Plane view of the inclined guide in the cleaning liquid plate Cross-sectional view showing a conventional example

DESCRIPTION OF SYMBOLS 2 Spray coating area 3 Cleaning liquid plate 4 Exhaust port A Gas 5 Filler layer W Cleaning liquid 10 Cleaning liquid supply means 3B Inclination guide part 13 Spattering guide 13A Upstream side scattering guide 13B Downstream side scattering guide 13C Turning guide 14 Spraying nozzle

Claims (6)

An exhaust port is provided in the cleaning liquid plate that forms the bottom of the spray coating area, and a paint mist capturing filler layer that allows a gas containing paint mist discharged downward from the spray coating area to pass through the exhaust port is provided in the exhaust port. A filling type paint exhaust cleaning system provided with a cleaning liquid supplying means for supplying a cleaning liquid onto the plate of the cleaning liquid plate and causing the cleaning liquid to flow out from the cleaning liquid plate to the layer of the filler layer through the exhaust port. A device,
The cleaning liquid plate is provided with an inclined guide portion that is inclined downward toward a plate edge portion that forms the edge of the exhaust port, and a part or all of the cleaning liquid flowing down the inclined guide portion is collided with the exhaust port. provided weir-like scattering guide is scattered to the side of,
A filling type paint exhaust cleaning device in which the scattering guides are arranged in a plurality of stages in the downward direction of the cleaning liquid flow . 2. The filling type paint exhaust cleaning apparatus according to claim 1, wherein the scattering guides are arranged in a staggered manner in a plan view . In the staggered arrangement of the scattering guides, the downstream cleaning liquid is applied to the downstream scattering guide at a position corresponding to the gap between the downstream scattering guides between the upstream scattering guide row and the downstream scattering guide row in the flow direction of the cleaning solution. 3. A filling type paint exhaust cleaning apparatus according to claim 2, further comprising a turning guide for turning to the side . An exhaust port is provided in the cleaning liquid plate that forms the bottom of the spray coating area, and a paint mist capturing filler layer that allows a gas containing paint mist discharged downward from the spray coating area to pass through the exhaust port is provided in the exhaust port. A filling type paint exhaust cleaning system provided with a cleaning liquid supplying means for supplying a cleaning liquid onto the plate of the cleaning liquid plate and causing the cleaning liquid to flow out from the cleaning liquid plate to the layer of the filler layer through the exhaust port. A device,
The cleaning liquid plate is provided with an inclined guide portion that is inclined downward toward a plate edge portion that forms the edge of the exhaust port, and a part or all of the cleaning liquid flowing down the inclined guide portion is collided with the exhaust port. A weir-shaped scattering guide that scatters to the side of the
A filling type paint exhaust cleaning apparatus in which a spray nozzle for spraying a cleaning liquid onto the layer of the filler layer is provided on the lower surface side of the cleaning liquid plate . The said washing | cleaning liquid board is arrange | positioned in the state which the board edge part of the said washing | cleaning liquid board is located in the state located just above the horizontal side edge of the said filler layer or laterally outside it. -filled painting exhaust cleaning device. The filling paint exhaust cleaning apparatus according to any one of claims 1 to 5, wherein the scattering guide is disposed at a tip portion of the inclined guide portion .

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