JPS6082121A - Device for removing paint mist in conditioning air - Google Patents

Abstract

PURPOSE:To reduce man-hour for recovering paint mist and to improve conditions of working environment by recovering filter member continuously together with paint mist in the conditioning air exhausted from a painting chamber and captured by a filter member outside of an exhaust gas treating line on the ground. CONSTITUTION:Conditioning air introduced into an exhaust air duct 17 by an exhaust fan 18 and contg. paint mist scattered in a painting chamber 3 is purified by catching the paint mist by a filter 19. The purified conditioning air is discharged to the outside from the exhaust duct 17 by the exhaust fan 18. On one hand, the paint mist captured by the filter 19 is washed by a washer 29 and flowed down on guide plates 20, 20a and a filter member 27. The washing liquid is stored in a storage tank 22 after passing through the filter member 27 and the paint mist is caught simultaneously by the filter member 27. Captured paint mist is recovered periodically in a recovering tank together with the filter member 27, and disposed by incineration.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for removing paint mist from conditioned air discharged from a loading room.

[Prior art]

Conventionally, the air-conditioned air discharged from the painting booth in the painting booth contains a lot of breeding material mist, which is generated when painting objects such as automobiles. Since then, 5tit of the mist has been removed in 14t1. For that purpose, a wet painting booth as shown in Figure 3 is used.

In FIG. 3, numeral 51 is a paint booth formed in the shape of a tunnel, and the space of 51 yen in this paint booth is formed in the royal area of an air supply chamber 521, a paint vine 53, and a DI' 5a cabinet 54. The air supply chamber 52 and the play chamber 53 are separated by a filter 55 for removing fine dust, and the air supply chamber 53 and the exhaust chamber 54 are separated by a boundary 56.

A conveyor 57 is installed above the bamboo basket 56, and rails 5 are installed on both sides of the conveyor 57.
8.58a is installed. Also.

On both sides of the coating station 53 are automatic coating machines 5 such as shibrocators.
9.59a is installed, and each of these spray cans 59.59a is equipped with a spray can 60.60.
A is attached. And the car body W on the 6th early 61st is my own! When the paint is delivered to the 411 paint machine 59, 59a, the paint is sprayed by the spray gun 60°60a to form a coating.

First, there is an air supply duct 62 on the ceiling wall 52a of the air supply room 52.
An air conditioner 63 is connected to the tip of the air conditioner 63, and an air supply fan 64 is provided below the air conditioner 63.

In addition, water supply machines 65, 65a are arranged horizontally in the longitudinal direction on both sides 54a of the exhaust chamber 54,
On the inside of Jf:, there are provided flow plays 1-66.668 on opposite sides thereof which extend towards r. Further, the bottom of the exhaust pipe 54 is a water storage tank 54 containing water H.
b, and water supply machines 65, 65 are installed on the side wall 54a.
A supply t67 leading to 1 is connected, and a pump 68 is provided on the way. Furthermore, the side wall 54 of the exhaust chamber 54
An exhaust duct 69 is connected to the exhaust duct a, and an exhaust fan 70 is provided in the middle of the exhaust duct 69.

When the automobile body W is being idle, the air conditioner 63 adjusts the temperature and humidity to a predetermined temperature, and the air conditioning air is supplied to the air supply chamber 52 by the air supply fan 64.
The air is supplied to the air supply chamber 52! ! ! #11′! I! .

The air is passed through the filter 55 as shown by the arrow and sent to the painting chamber 53.
The exhaust fan 70 discharges the room charge mist that does not adhere to the automobile body W together with the conditioned air into the exhaust chamber 54.

The room material mist is removed from the nitrogen Al4 air by contacting the water H which overflows from the water supply device 65, 65 & of the exhaust pipe 54 and sweeps over the flow plate 66, 66a.

However, in wet heavy equipment booths like this,
The pump 68 supplies water R from the water storage J154b to the supply pipe 6.
7. Water supply-65, 65&, flow plate 66.66a
The paint mist is removed by contacting the empty IA air discharged from the evaporator device 53 while circulating it with the water tank 54b and the water tank 54b. The paint mist remains at #54b. Therefore, it is necessary to periodically clean the room material mist that floats or settles in the water storage tank 54b, and not only does it take a lot of work to collect the room material mist, but the double-walled water storage tank 54b is located underground. Because of this, there is a problem that the work environment is poor.

OBJECT OF THE INVENTION The present invention was made to solve the above-mentioned problems, and its purpose is to eliminate *4 in the conditioned air discharged from the painting room.
The 4t strike is captured by a filtration member outside the exhaust system on the ground, and j+
ii By continuously collecting the filter member together with the captured paint mist! It is an object of the present invention to provide a room material mist removal device that can reduce the number of man-hours required for collecting 14 tons of waste and improve the working environment.

[Redundant structure]

In order to achieve the above object, the paint mist removal device in the air conditioned air of the present invention has the following configuration: ! ! +
&J are formed in the air supply chamber, the W device, and the exhaust chamber sequentially from above, with the filter and the screen as boundaries, respectively.
In a painting booth in which an exhaust duct having an exhaust fan above is connected to the exhaust chamber, below the exhaust fan of the exhaust duct.

A filter for capturing mist is arranged horizontally, and a washing machine that sprays a cleaning liquid is arranged above the filter, and a plurality of downwardly sloping guide plates are installed at the bottom of the filter. The lower tip of the lowest guide plate is made to protrude out of the tJi air duct, and a storage tank is provided in the protrusion, and the lower part of the guide plate connected to this storage tank is A filtration member that moves between the inside and outside of the storage tank is provided horizontally, and a recovery tank is arranged in the path of movement of the filtration member outside the storage tank.

[Operation of the Invention] In such a device for removing room material mist in air-conditioned air, the paint mist is scattered into the heavy-duty room without touching the objects to be loaded, and the paint mist is dispersed together with the conditioned air supplied from the air supply room. The air is discharged into an exhaust chamber by a fan and guided to an exhaust duct. The air that is introduced into the exhaust duct and contains the soybean mist passes through the filter by following the gaps between several internal plates, and the soybean mist is captured by the filter. The air conditioned air, in which the jujube mist is captured and purified, is discharged to the outside through the exhaust duct by the exhaust fan.

On the other hand, the paint mist captured by the filter is cleaned by spraying a cleaning liquid toward the filter by a cleaning machine, and is also flowed down to the guide plate together with the cleaning liquid. Then, the cleaning solution and obstetric mist flowed onto the information board.
The cleaning liquid flows down from the guide plate to a filter section disposed outside the exhaust duct, passes through the filter member and is stored in the storage tank, and the coating mist is captured by the transit member.

The captured Chosugi mist is periodically collected together with a filtering member in a collection tank located outside the city where it is incinerated. This eliminates the need for a worker to enter the water tank and clean the floating paint mist, as in the past, and reduces the number of man-hours required for each work carried out by the LJi paint mist. At the same time, it is possible to improve the working environment for cleaning the 9-room cleaning space.

[Funny example of invention]

An embodiment of the present invention will be described in detail below with reference to the drawings.

[Configuration of disaster example] Figure 1 is a sectional view of the paint mist removal process in the air of an open IA window according to the present invention, viewed from the front, and Figure 2 is a cross-sectional view of the state shown in Figure 1.
-Jim shows a cross-sectional view. In FIGS. 1 and 2, reference numeral 1 denotes a koji loading booth formed in the shape of a tunnel. They are formed in sequence in the third gear of Kojiso 3 and exhaust chamber 4.

The air supply system 2 and the air supply device 3 are filters 5 that remove fine dust.
The 9-head device 3 and the exhaust chamber 4 are separated using the cage 6 as the boundary.

An air supply duct 7 is connected to the supply and air chamber buttons, and an air supply duct 7 is provided in the middle of the duct 7.
An air conditioner 9 is connected to the tip. Further, a conveyor 10 is installed on the upper surface of the screen 6 in the longitudinal direction of the central part of the painting room 3, and this conveyor 10
is provided with a plurality of meters of dogs 12 which are hooked onto a trolley 11 on which a single automobile W, which is an object to be painted, is placed and transported.

Rails 13.13a are laid on both sides of the conveyor 10, and the pulley 11 is guided by these rails 13.13a. Also.

On the sides of both rails 13 and 13a, reciprocators, etc. are installed! AJ paint machines 14, 14a are disposed, and the AJ paint machines 14, 14a are moved vertically and horizontally tC to paint DIi, I-
Spray guns 15 and 15a are provided for spraying water.

An exhaust electric generator 16 is provided outside the exhaust chamber 4 and is formed in a secondary manner. In other words, an exhaust duct 17 is installed on the outside of the air vent 4, the upper end of which is open to the atmosphere, and the lower end of which is provided with an exhaust fan 18 above the exhaust duct 17. A filter 19 for removing the paint mist is provided below the exhaust air 7 18 in the width direction and length direction.This filter 19 is made of thin metal poles woven into a net shape , 10 pieces (
It is formed into a belt shape by gluing 100 pieces together.

The conditioned air containing paint mist discharged from the painting room 3 is passed therethrough, and the paint mist contained in the air conditioned air is captured.

At the lower part 1B of the filter 19, two guide plates 20, 208 that slope downward are provided with a step difference, and the step part of the IC becomes a passage hole 21 for the conditioned air. ing. Of the guide plates 20.degree. 20a, the lower guide plate 20a is provided with its lower tip protruding outside the discharge duct 17.

A storage tank 22 is arranged on the protrusion of the guide plate 20a,
Inside thereof, a cleaning liquid H containing water, a killer agent, etc., whose mixing ratio is appropriately adjusted, is stored.

A wire mesh belt 23 is disposed below the guide plate 20a that still protrudes into the storage tank 22, and is arranged over the entire width direction and pitcher direction of the storage tank 22, and is formed in an endless shape. Ru. Furthermore, this wire mesh belt 23 is connected to rotating rollers 24 and 2 provided on the outside of both ends of the storage tank 22.
4a, and the rotary roller 24 is connected by a belt 26 to a motor 25 fixed to the floor. Then, this wire mesh belt 23 is horizontally disposed at a fixed position from the inlet 22a side of the storage tank 22 by the drive of the motor 25, and extends to the outside of the storage tank 22 from the outlet 22b side, and is again opened to the storage tank 22. It circulates in and out of the storage tank 22 by moving inside from the outlet 22b side.

Further, on the upper surface of the wire mesh belt 23, a passing part 27 made of a two-paper filter is disposed in the entire length in the radial direction and in the technician direction, and one end thereof is disposed on the inlet 22a side of the storage tank 22. It is wound around the provided rotating roller 28, and the other end extends toward the outlet 22b side of the storage tank 22. This core member 27 is formed into a belt shape by stacking 5 to 100 paper filters, and is configured to allow the cleaning liquid H to pass therethrough, but to trap paint mist.

Further, above the filter 19, a washer 29 that sprays cleaning [H] toward the filter 19 is disposed.

This cleaning 8129 is performed using a supply pipe 30 whose one end opens near the bottom of the storage tank 22 disposed outside the exhaust duct 17 and whose other end opens at the top of the filter 19 of the exhaust duct 17; The pump 31 installed in the middle of the supply 'i! It consists of a plurality of injection nozzles 32 that are provided at the tip of the filter t30 and spray the cleaning liquid H toward the filter 19.

The cleaning liquid H is normally controlled to have a pH of 7 to 9, and is supplied from the bottom of the storage tank 22 to the injection nozzle 32 by the pump 31, and the cleaning liquid H is sprayed toward the filter 19 to filter the 19 and cleans and removes the 1-piece seaweed mist.

Also, a collection tank 33 is disposed at the extension of the filter member 27 outside the storage tank 22, and captures the mist.
When the filtration performance deteriorates, one filtration member 27 is recovered by moving the storage tank 22 by driving the motor 25. In addition, 34 is a lid arranged on the upper part of the storage 4v122.

[Effect of the embodiment]

In the obstetric mist removal device constructed as described above, we will take a closer look at the positive effects.

Simultaneously with the start of operation of the wall-mounted booth 1, the air supply fan 8° air conditioner 9 and the air fan 18 are activated.

By the operation of the wake fan 8, outside air is introduced into the air conditioner 9, where it is removed from dust and maintained at a predetermined temperature.

The air is adjusted to M degrees and supplied to the air supply pipe 2. and.

The controlled air supplied to the air supply chamber 2 passes through a filter 5 as shown by the arrow and is evenly supplied to the painting chamber 3.

In addition, the vehicle is transported by the conveyor 10.
The automatic 1μ vehicle body W on the top 1 is carried into the interior through the entrance of the carousel 3. Then, when the single automobile W is transported to the own MW mounting machines 14 and 14a disposed on both sides of the dust trap 3, the dust is sprayed by the spray cans 15 and 15a. A rebellion is formed. In this way, the automobile W is conveyed by the conveyor 10 and sprayed with the inspection material to complete the painting, and then conveyed from the exit of the painting room 3 to the next process.

- 10,000, the exhaust device 16 is activated at the same time as the start of operation of the amusement booth 1, and the prize money that does not adhere to the car body W is supplied to the dropping device 3 as a prize mist. !F,
Together with the nitrogen gas, it passes through the air filter 6 as shown by the arrow, is discharged into the air chamber 4, and is led to the exhaust tact 17. The conditioned air containing obstetric mist guided to the exhaust duct 17 is
Paint mist is captured from the conditioned air that passes through the passage hole 21 of the guide plate 20, 20&, and passes through the filter 19, and the room material mist is removed. released to the outside.

The paint mist is captured by the filter 19.

The cleaning UH contained in the bottom of the storage tank 22 is supplied by the pump 31 to the injection nozzle 321, and the cleaning liquid H is supplied from the injection nozzle 32 to 21q/ci to 1o.
It is injected at a pressure of kg/d. At that time, it is captured by the filter 19, has its viscosity reduced by the cleaning liquid H, and is removed from the filter 19 and flows down to the guide plate 20.20a together with the cleaning liquid H. The paint mist and the cleaning liquid H that have flowed down onto the guide plate 20.20a flow onto the guide plate 20.20a and flow down onto the filter member 27 disposed outside the exhaust duct 17.
The cleaning liquid I (passes through the filtration member 27 and is stored in the storage tank 22, and the paint mist is urged to the filtration member 27 f+li.

When the filtering member 27 continues to capture the paint mist and the capturing efficiency decreases, the motor 25 is driven to circulate the wire mesh belt 23 inside and outside the storage tank 22, and the filtering member 27 collects the mist. The filter member 27 is moved in the direction of the tank 33 (to the right in FIG. 2), and the filter member 27 in the area contaminated with paint mist is collected in the collection tank 33. And 1 collection tank 33
The filter MFI6 material 27 collected is periodically incinerated. Also, the a-pass member 2 wound around the two-rotation roller 28
7 is used, and a new filter member 27 is attached to the bell.

In addition, in the example of the one-piece filter, the filter member 27 was explained as being made of paper filters made of 5 to 100 cut melons, but in the present invention, the filter member 27 is not limited to paper filters. Instead, it is possible to use a filtration member made by laminating 5 to 100 filters made of synthetic fibers or blended fibers, for example, cloth. In the first disaster example, a method is explained in which the wire mesh belt 23 on which the filtration member 27 is mounted is automatically moved by kA, but there is no particular need to perform this automatically in the present invention. 1 It can also be driven manually.

〔Effect of the invention〕

As explained above, in the 84 mist removal device in normal air according to the present invention, in the IJF air system of acupuncture mist,
A filter and a filtration member are provided to capture copying material mist, a washer is provided above the filter to wash away the mist trapped in the room, and the filtration member is moved out of the system. Pigment mist in the air after air conditioning discharged from the breeding equipment is captured and washed in the exhaust system on the ground, and the cleaning liquid is passed through a filtration member outside the system, and the filtration member that captures the paint mist is continuously passed to the recovery tank. Because it can be recovered.

This has the effect of significantly reducing the number of man-hours required to collect copying material mist.

First, the paint mist can be captured by a filtration member installed outside the ground exhaust system.

Compared to conventional work that requires underground work.

It has the effect of significantly improving the working environment.

Second, since the filter in the exhaust duct has been thoroughly cleaned by the washer and is in good condition, there is an effect that the room material mist trapping performance can be maintained at a constant +C.

Further, in the present invention, the filter is constantly wetted by the washing E liquid while the tA equipment booth is in operation, which has the effect of improving the capture rate of paint mist contained in the clean air.

[Brief explanation of drawings]

Figure 1 shows '!' according to the present invention. ! ! FIG. 3 is a cross-sectional view of the apparatus for removing copying material mist in the air after adjustment, as seen from the front. FIG. 2 is a sectional view taken along the line 1--Otori in FIG. 1. Figure 3 is a cross-sectional view of a conventional wet painting booth viewed from the front. 1... Copying booth, 2... Air supply room, 3... Painting room. 4...Exhaust fan, 5...Filter, 6--Kanoko. 7...Air supply duct, 8...Air supply 71n. 9...Solid air conditioner, 10...Conveyor, 11...One car. 12...Doc, 13,13a...Rail. 14.14m...Automatic painting machine. 15.15a...Spray gun. 16...Exhaust system! 1.17...Exhaust duct. 18...exhaust fan, 19...filter. 20.20m...guide plate, 21...passing hole. 22... Storage tank, 22a... Input 0.26b... Outlet. 23...wire mesh belt. 24.24a...Rotating roller, 25...Motor. 26...Belt, 27...Filtering member. 28...@roller, 29...washing machine, -30...
- Supply pipe, 31...pump. 32... Injection nozzle, 33... Recovery tank, 34...
Lid applicant Toyota Motor Corporation

Claims (1)

[Claims] The space inside the paint booth is formed into an air supply chamber, a cooling chamber, and an exhaust chamber sequentially from above, with the filter and the dust as boundaries, respectively, and an exhaust duct having an air fan at the top is installed in this exhaust chamber. In the painting booth, a filter for trapping paint is disposed horizontally below the exhaust fan of the exhaust duct, and a cleaning machine is installed to spray a cleaning liquid above the filter. A plurality of guide plates tilting downward are provided with steps at the bottom of the filter, and the lower tip of the lowest guide plate is used for medical purposes outside the exhaust duct. A storage tank is provided in the storage tank, a filtration member that moves in and out of the storage tank is provided horizontally below the guide plate for medical use, and a recovery tank is provided in the movement path of the filtration member outside the storage tank. A device for removing wing material mist in air-conditioned air, which is characterized by: