JP2000325725A - Wet type dust collector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wet type dust collector of a simple constitution and whose dust collecting efficiency is improved by widening the passing range of dust-containing air, improving the contact efficiency between the dust- containing air and water for collecting dust, and effectively utilizing all of the water for collecting dust. SOLUTION: This wet type dust collector has a structure where water 3 for collecting dust is stored in a main body part 2 in which an air discharging apparatus 1 is installed, dust-containing air 5 is introduced into the water for collecting dust through a suction duct 4, the dust-containing air 5 is brought into contact with the water 3 for collecting dust to collect the dust, and discharging the resultant air by the air discharging apparatus 1. In such a dust collecting apparatus, the suction duct 4 is projected inward to the position in the main body part 2 where the duct 4 does not cone into contact with the inner circumerential wall of the main body part 2, and the tip end part 4A of the suction duct 4 is so submerged under the water surface as to be surrounded in all sides with the water 3 for collecting dust.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet type dust collector for guiding dust-containing air into dust collecting water and bringing the dust into contact with the dust collecting water to collect dust.

[0002]

2. Description of the Related Art In a wet dust collector, water (dust collection water) is stored in a container-shaped main body provided with an exhaust device such as a blower fan, and dust-containing air is contained in the main body. A suction plate is connected to the suction duct, and a partition plate having a lower end slightly submerged is provided in the main body to partition the container space on the water surface of the dust collection water into a suction side and an exhaust side.

Accordingly, when the exhaust device 1 is operated, the air on the exhaust side is exhausted to the outside of the main body, and the exhaust side is in a negative pressure state, and the water surface on the exhaust side rises, and the water surface on the suction side conversely rises. Then, the air on the suction side becomes air bubbles over the lower end of the partition plate and is sent to the exhaust side through the lower part of the partition plate.

Therefore, the dust-containing air is drawn into the suction side of the main body through the suction duct, becomes air bubbles, passes under the partition plate in the water for collecting dust, and is sent to the exhaust side, and is discharged by the exhaust device. Exhausted.

When the dust-containing air passes through the dust-collecting water as air bubbles, the dust-containing air comes into contact with the dust-collecting water, and the dust is trapped by the water and settles, mixes, or dissolves. The dust will be collected by the dust collection water.

However, the conventional wet dust collector has a configuration in which the interior of the main body is partitioned by the partition plate and the dust-containing air is passed from the suction side to the exhaust side, so that the passage range of the dust-containing air is narrow. Effective use of the whole dust water cannot be achieved.

That is, the contact efficiency between the dust-containing air and the water for collecting dust is poor, and the dust collecting ability is not sufficiently exhibited.

The present invention has been found to solve such problems in the conventional wet type dust collector, and solves the problem.
With a simple configuration, the passage range of dust-containing air can be extended, the contact efficiency of dust-containing air and dust collection water can be increased, and the dust collection efficiency can be dramatically improved by effectively using the entire dust collection water. The purpose is to provide a typical wet dust collector.

[0009]

The gist of the present invention will be described with reference to the accompanying drawings.

[0010] Dust collection water 3
And the dust-containing air 5 is guided into the dust-collecting water 3 via the suction duct 4, and the dust-collecting water 3 and the dust-containing air 5 are brought into contact with each other to collect dust and exhaust by the exhaust device 1. In the wet dust collector, the suction duct 4 is protruded inward to a position where the suction duct 4 is not in contact with the inner peripheral wall of the main body 2, and the front end portion 4 </ b> A of the suction duct 4 is provided with dust collecting water. The present invention relates to a wet type dust collector characterized by being submerged under the surface of water surrounded by 3.

The suction duct 4 is provided below the tip 4A of the suction duct 4 which is submerged in the dust collecting water 3.
2. A wet dust collector according to claim 1, wherein a bubble dispersion restricting body (6) for dispersing bubbles of the dust-containing air (5) introduced into the dust-collecting water (3) from the surroundings is disposed under water. is there.

The bubble dispersion restricting body 6 is formed in a substantially conical shape with at least the upper surface convex upward, and the bubbles of the dust-containing air 5 heading toward the top disperse in a plurality of directions by traveling along the conical surface. 3. The apparatus according to claim 2, wherein
The present invention relates to the wet dust collector described above.

Further, the air bubbles of the dust-containing air 5 are formed under the water surface close to the water surface of the dust-collecting water 3 around the distal end portion 4A of the suction duct 4 disposed submerged in the dust-collecting water 3. A mesh plate having a large number of through holes 7 passing therethrough, punched metal,
The wet dust collector according to any one of claims 1 to 3, wherein a perforated plate (8) such as a lattice member is submerged.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

When the air in the main body 2 is exhausted by the operation of the exhaust device 1, the inside of the main body 2 becomes negative pressure, the water level of the dust collecting water 3 rises, and slightly below the water level of the dust collecting water 3. The water surface in the distal end 4A of the suction duct 4 submerged falls.

The water surface in the suction duct 4 is
, The dust-containing air 5 in the suction duct 4 becomes bubbles, passes through the dust collecting water 3, is sent into the main body 2, and is exhausted by the exhaust device 1.

At this time, the dust-containing air 5 and the dust-collecting water 3 come into contact with each other.
And is collected by sedimentation or mixing.

According to the present invention, the tip 4A of the suction duct 4 is provided.
Is provided so as to protrude inward to a position not in contact with the inner peripheral wall of the main body portion 2 and is submerged under the water surface surrounded on all sides by the dust collection water 3, so that it is not one direction but several directions or four sides, The bubbles of the dust-containing air 5 pass in all directions through the dust collecting water 3 and onto the water surface.

Therefore, the passage range of the air bubbles is widened and the whole of the dust collecting water 3 can be effectively used, the contact efficiency between the dust collecting water 3 and the dust-containing air 5 is greatly improved, and the dust collecting efficiency is dramatically improved. It will be.

The dust-containing air 5 introduced from the suction duct 4 into the dust-collecting water 3 is provided below the distal end portion 4A of the suction duct 4 disposed submerged in the dust-collecting water 3. If the bubble dispersion regulating body 6 for dispersing the bubbles to the surroundings is provided in the water, the dust-containing air 5 which is introduced into the dust collecting water 3 as bubbles from the suction duct 4 by the bubble dispersion regulating body 6 is introduced. , Is surely dispersed to the surroundings, and the operation and effect are further improved.

Further, air bubbles of the dust-containing air 5 are formed under the water surface near the water surface of the dust collecting water 3 around the distal end of the suction duct 4 immersed in the water 3 for collecting dust. A mesh plate having a large number of through holes 7 passing therethrough, punched metal,
If the perforated plate 8 such as a lattice member is disposed in the water, the air bubbles of the dust-containing air 5 are reduced by the perforated plate 8 when being sent to the water surface, and the contact area with the dust collecting water 3 is further increased. This increases the dust collection efficiency, and further improves the dust collection efficiency. In addition, the bubbles promote water splash when rising above the water surface, and the contact area is improved, so that the dust collection efficiency is improved.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

An exhaust duct 9 is connected to the upper part of the container-shaped main body 2, and a blower fan is provided as an air exhaust device 1 in the upper exhaust part, and water is stored in the main body 2 to a predetermined water level as dust collection water 3. Then, the dust-containing air 5 is guided into the dust collecting water 3 through the suction duct 4 connected to the main body 2, and the dust collecting water 3 is introduced.
And the dust-containing air 5 are brought into contact with each other to collect dust and exhaust the air by the exhaust device 1.

In this embodiment, the suction duct 4 is protruded from the center of the main body 2 to be bent and disposed.
Are protruded inward to positions not in contact with the inner peripheral wall, and are submerged below the water surface surrounded by the dust collecting water 3 on all four sides.

Therefore, the passage range of the bubbles is widened, and the whole of the dust collecting water 3 can be effectively used, the contact efficiency between the dust collecting water 3 and the dust-containing air 5 is greatly improved, and the dust collecting efficiency is greatly improved. It will be.

In this embodiment, the suction duct 4 is drawn into the dust collecting water 3 from the suction duct 4 below the distal end 4A of the suction duct 4 disposed submerged in the dust collecting water 3. A bubble dispersion regulating body 6 for dispersing bubbles of the dust air 5 to the surroundings is disposed under water.

More specifically, the bubble-dispersion restricting body 6 is suspended and fixed in the water from the tip 4A of the suction duct 4, and the bubble-dispersion restricting body 6 is formed in a substantially conical shape having a convex upper surface. (For example, formed in the shape of a quadrangular pyramid as shown), so that the bubbles of the dust-containing air 5 heading toward the lower apex branch off from the apex and progress along each conical surface by being drawn in, so that they are dispersed in four directions. Make up.

Therefore, the dust-containing air 5 which is formed as bubbles from the suction duct 4 and drawn into the dust collecting water 3 by the bubble dispersion regulating body 6 is surely dispersed in the surrounding four directions. The effect is further improved.

Further, in the present embodiment, the dust-containing air 5 is placed under the water surface close to the water surface of the dust collecting water 3 around the distal end portion 4A of the suction duct 4 immersed in the water 3 for collecting dust. A perforated plate 8 such as a mesh plate, a punched metal, or a grid-like member having a large number of passage holes 7 through which the air bubbles pass is disposed under water.

Specifically, a perforated plate 8 is attached and fixed around the distal end portion 4A of the suction duct 4, and the perforated plate 8 provided with a large number of through holes 7 is horizontally installed and disposed near the water surface. Has been established. Therefore, the dust collection water 3 filled in the container-shaped main body 2
The dust-containing air 5 which is bubbled into the water and rises above the water surface so as to be effectively used as a whole is dispersed from the distal end portion 4A of the suction duct 4 to the surrounding four sides and rises. Since the air bubbles of the dust-containing air 5 are made finer by the plate 8 when they are sent to the water surface, the contact area with the dust-collecting water 3 is further drastically increased, and the dust-collecting efficiency is further improved. These bubbles promote water spray when rising above the water surface, and the contact area is improved, so that the dust collection efficiency is improved.

Also, in this embodiment, a dust collecting filter 10 for catching dust in the spray of water that rises due to the rise of bubbles on the water surface of the dust collecting water 3 is detachably mounted and installed, and furthermore, the blowing air Alternatively, a main filter 11 that captures dust in the spray that could not be captured by the dust collection filter 10 is provided in an air passage. Normally this dust filter 10
To the dust collecting water 3 through the drain hole at the bottom.
The system is configured so that maintenance is performed by replacing and injecting water to improve the durability and the performance of the device.

An explosion-proof exhaust valve device 12 is provided at a predetermined position of the main body 2.

For example, when the exhaust device 1 is stopped when collecting the dust-containing air 5 containing magnesium dust, the main body 2
There is a concern that the hydrogen gas may stop and explode, and it is necessary to ventilate the main body 2 after stopping the exhaust device 1 so that the hydrogen gas does not stop.

In this embodiment, when the exhaust device 1 is stopped, the exhaust hole 13 is opened, and when the exhaust device 1 is operated and the inside of the main body 2 is in a negative pressure state, the negative pressure is applied. An exhaust valve device 12 is provided which automatically closes an exhaust hole 13 by a suction force.

More specifically, a valve housing 14 is provided in the exhaust hole 13 provided in the main body 2, and a valve body 15 for closing the exhaust hole 13 is housed in the valve housing 14 as freely as possible. When the inside of the main body 2 is in a negative pressure state due to the operation of the exhaust device 1, the valve element 15 in the valve housing 14 is attracted to the exhaust hole 13 by the suction force of the negative pressure, and the exhaust hole 13 is closed. Conversely, when the exhaust device 1 is stopped and no longer under the negative pressure state, the valve body 15 falls or separates in the valve housing 14 due to its own weight or exhaust wind, and the exhaust hole 13 is opened, and the stationary gas such as hydrogen gas is discharged. The air is exhausted from the exhaust hole 13 to the outside.

Accordingly, the valve housing portion 14 is configured to be housed and held so that the operation of the valve body 15 adsorbing to the exhaust hole 13 and dropping depending on the presence or absence of the suction force is repeatedly and automatically performed. For example, as shown in FIG.
A cylindrical case body provided with a viewing window 17A also functioning as a ventilation hole 17 for confirming the state of contact and separation of the valve body 17 and the valve body 15 is protruded.

When the main body 2 is not in a negative pressure state, the valve body 15 is set to have a weight that separates from the exhaust hole 13 due to its own weight drop or exhausted wind. For example, a light spherical body such as a ping-pong ball as shown is employed.

Reference numeral 16 in the figure denotes an explosion-proof shutter for preventing a blast toward the supply side when an explosion occurs.

[0039]

As described above, the present invention is constructed as described above, so that the passage range of the air bubbles is widened and the entire water for dust collection can be effectively used.
The contact efficiency between the dust collection water and the dust-containing air is greatly improved, and the dust collection efficiency is dramatically improved.

According to the second and third aspects of the present invention, the dust-containing air which is bubbled from the suction duct and drawn into the dust collecting water is surely dispersed to the surroundings. The result is a better wet dust collector with even better effects.

According to the fourth aspect of the present invention, the bubbles of the dust-containing air are reduced when they are sent to the surface of the water, so that the contact area with the dust-collecting water is further increased, and the dust-collecting efficiency is further improved. It will be an even more innovative and innovative wet dust collector.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional front view of an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional enlarged explanatory front view of a main part of the embodiment.

FIG. 3 is a schematic enlarged enlarged perspective view of a main part of the embodiment.

FIG. 4 is an enlarged schematic perspective view illustrating the exhaust valve device according to the embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 exhaust device 2 main body 3 dust collecting water 4 suction duct 4A tip 5 dust-containing air 6 bubble dispersion regulator 7 passage hole 8 hole clear plate

Claims (4)

[Claims] 1. Dust collection water is stored in a main body portion provided with an air exhaust device, and dust-containing air is guided into the dust collection water via a suction duct, and the dust collection water is brought into contact with the dust-containing air. In the wet type dust collector, wherein the dust is collected and exhausted by the exhaust device, the suction duct projects inward to a position where the suction duct does not contact the inner peripheral wall of the main body, and a tip of the suction duct is provided. A wet-type dust collector characterized in that a part is submerged under water surrounded on all sides by dust-collecting water. 2. A method for dispersing air bubbles of the dust-containing air introduced into the dust-collecting water from the suction duct below the tip of the suction duct disposed submerged in the dust-collecting water. The wet type dust collector according to claim 1, wherein the bubble dispersion regulating body is disposed submerged in water. 3. The bubble dispersion regulating body is formed in a substantially conical shape having at least an upper surface convex upward, and bubbles of dust-containing air heading toward the top are dispersed in a plurality of directions by traveling along the cone surface. The wet dust collector according to claim 2, wherein the dust collector is configured as described above. 4. A passage hole through which air bubbles of the dust-containing air pass is provided under a water surface close to a water surface of the dust collection water around a distal end portion of the suction duct disposed submerged in the dust collection water. The wet dust collector according to any one of claims 1 to 3, wherein a large number of perforated plates, such as a net plate, a punched metal, and a grid-like member, are submerged.