JPH0721211Y2 - Wet dust collector - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet dust collector for separating dust and air by mixing air containing dust in water.

[0002]

2. Description of the Related Art A conventional wet dust collector is equipped with an air volume adjusting plate above a water surface in a water tank, and air containing dust is forced to flow between the water surface and the air volume adjusting plate to generate a water flow.
A structure for separating the dust and air by changing the direction of the water flow by a guide plate provided at the rear part and colliding with the ceiling of the upper part to create a large number of water drops, and passing the air containing the dust in the water drops. It was.

[0003]

However, since a water flow is generated by the air flow passing through the gap between the water surface and the air flow rate adjusting plate at the upper part, and the water flow collides against the ceiling, a large number of water droplets are formed. Large wind pressure (usually 120m
mAq or more) is required, power loss is large, and further,
Since the structure has a structure in which a large number of water droplets are dropped while containing dust to remove the dust, there is a problem in that air holes without water droplets are easily opened inside and dust collection efficiency is poor. The present invention has been made in view of such circumstances, and requires less fan power,
Moreover, it is an object of the present invention to provide a wet dust collector with high dust collection efficiency.

[0004]

Means for Solving the Problems A wet dust collector according to the present invention for achieving the above object is a wet dust collector for forcibly mixing air containing dust into water to separate dust from air, which are arranged in parallel. A toothed plate provided with a large number of triangular teeth in the lower part, which is partly immersed in a water tank and flows air and water containing dust from the gaps between the toothed plate, and the toothed plate at the lower part of the toothed plate with the tooth-shaped teeth A water flow guide plate with a bent portion that repels the air passing through the plate upwards,
A ceiling plate that is provided on the downstream side of the toothed plate and above the water flow guide plate and that collides with and removes contained water droplets.

[0005]

In the wet dust collector according to the present invention, since air containing dust flows from the gap between the tooth plates partially immersed in the water tank, the water film in the shape of the teeth of the base plate is generated by the air. The formed water film is brought into contact with air containing dust, and most of the dust is captured by the water drops formed by the water film and the flowing air and the large number of water drops generated by the water flow repelled by the water flow guide plate. Therefore, dust and air can be efficiently separated. Then, the repelled airflow collides with the ceiling plate to remove the water contained therein while passing through the inclined plate in zigzag, and is discharged to the atmosphere. Further, since the water film is formed by flowing air containing dust between the teeth of the tooth plate, it is not necessary to push the water downward, and thus the wind pressure required by the fan can be small.

[0006]

Embodiments of the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. 1 is a schematic sectional view of a wet dust collector according to an embodiment of the present invention, FIG. 2 is a partial perspective view of the same, and FIG. 3 is an enlarged view of the same. As shown in FIG. 1, a wet dust collector 10 according to an embodiment of the present invention includes a water tank 11, a toothed plate 12 arranged in the water tank 11, and a water flow provided under the toothed plate 12. It has a guide plate 13, a water removing mechanism 14 for removing water droplets contained in the air flow, and a fan 15 for generating the air flow. These will be described below.

In this embodiment, the wet dust collector 10 is used.
It is also intended to be incorporated in a working room 16 for painting and the like, and to separate mist and air generated during painting. The water tank 11 provided at the back of the working chamber 16
Is made of a stainless steel water tank, and a ball tap (not shown) is provided inside to keep a constant water level. Toothed plate 12 is located in front of the center of the water tank 11.
The toothed plate 12 is made of a stainless steel plate, and the lower part is cut out in a triangular tooth shape. The size of the opening of this one triangle is 90mm at the bottom and 19mm at the height.
It is an isosceles triangle of about 0 mm, but the lower side is 60
It may be a triangle of about 150 mm and a height of about 100 to 250 mm.

The upper part of the toothed plate 12 is attached to a wall body 17 by a screw so as to be vertically movable, and a water flow guide plate 13 is provided on the lower part of the toothed plate 12. The water flow guide plate 13 is also made of stainless steel, and the tip portion thereof is bent upward so that the water blown out from the gap of the tooth block plate 12 is repelled upward. The water flow guide plate 1
The water and the air flow repelled by 3 collide with a ceiling plate 18 inclined upward, and are bent downward by a hanging plate 19 provided at the tip of the ceiling plate 18.

After that, the water removing mechanism 14 further flows into the upper water removing mechanism 14. The water removing mechanism 14 is provided with inclined plates 20 and 21, and the air flow is bent in a zigzag shape so that the contained water is inclined plate 20,
21, the side plate and the ceiling plate 18 are attached to the upper surfaces to be removed. Above the water removing mechanism 14, a fan 1 with a predetermined air volume is driven to rotate by a motor (not shown).
5 is provided to remove the water contained in the air from the working chamber 16 through the gap between the toothed plate 12 and the water removing mechanism 14.

Therefore, in the wet dust collector 10,
Adjust the amount of water in the water tank from the bottom of the tooth plate 12 to about 40 ~
Keep the water level at about 100 mm, operate the fan 15,
The wind speed passing through the toothed plate 12 is about 12 to 20 m / sec.
If it is set to (preferably 17 m / sec), water passes through the triangular opening 22 at the bottom of the toothed plate 12, so the water is pushed by this and a triangular water film is formed on the outlet side of the toothed plate 12. An air stream containing dust passes through this inside. The air stream and the water film come into contact with each other, and further the air stream advances while crushing the water film, so that the dust contained in the air stream is washed and removed from the air. The wind pressure of the fan 15 in this case is 70
mmAq, which is lower than the conventional case. Then, thereafter, the water flow guide plate 13 repels the upper part, and further collides with the ceiling plate 18 to form water droplets, so that the water and the airflow are agitated also in this portion, and the contained dust is removed.
The removed dust rides on the flow of water, dives under the water flow guide plate 13, and floats and accumulates on the front side of the water tank 11. on the other hand,
Since the air stream from which the dust has been removed passes through the water removal mechanism 14,
Here, the water is removed and is discharged to the atmosphere by the fan 15.

In the above-mentioned embodiment, the whole device is constructed by using the stainless steel member, but it is also possible to use the iron plate or other metal plate or plastic. Further, although the working room is a painting site, the wet dust collector of the present invention can be used in a blasting work place, a stone quarry, a brick work place, a chemical factory, or the like.

[0012]

As is apparent from the above description, the wet type dust collector according to the present invention is provided with a toothed plate, and an air stream containing dust is caused to flow through the gap between the toothed plate to remove dust while generating a water film. Since the total pressure loss is small, the power of the fan can be saved as a result. Then, the water in the air stream is removed while passing through the ceiling plate and the inclined plate. Further, since the dust removal is performed while forming the water film, the contact ratio of the air flow containing water and dust is increased, and the dust removal rate is improved as compared with the conventional wet dust collector.

[Brief description of drawings]

FIG. 1 is a side sectional view of a wet dust collector according to an embodiment of the present invention.

FIG. 2 is a partial perspective view of the same.

FIG. 3 is a partial perspective view of the same.

[Explanation of symbols]

 10 Wet Dust Collector 11 Water Tank 12 Toothed Plate 13 Water Flow Guide Plate 14 Water Removing Mechanism 15 Fan 16 Working Room 17 Wall Body 18 Ceiling Board 19 Hanging Plate 20 Sloping Plate 21 Sloping Plate 22 Triangular Opening

Claims (1)

[Scope of utility model registration request] 1. A wet type dust collector for forcibly mixing air containing dust into water to separate dust from air, which is equipped with a large number of triangular teeth arranged in parallel at a lower portion and partially immersed in a water tank. A toothed plate that is made to flow dust-containing air and water through the gap,
A water flow guide plate having a bent portion at a lower portion of the tooth plate and having a tip portion that repels air passing through the tooth plate upward, and a water flow guide plate provided on the downstream side of the tooth plate and above the water flow guide plate. The
A wet dust collector, comprising: a ceiling plate for colliding and removing water droplets contained therein.