KR810001377B1 - Method of cleaning dust-containing gases - Google Patents

Abstract

A system for first dust-containing gas current is jetted out through a jetting port(9). The gas current is jetted out from the direction opposing to the first gas current, and both gas currents are made to conflux with each other. The dust in gas is swallowed up by the washing liquid. The liquid pressure and jetting pressure are blanced with each other so that a film of the washing liquid may be formed in the gas current collision system.

Description

How to purify the impregnated gas

1 is a cross-sectional view.

2 is an enlarged cross-sectional view of the inner compartment.

3 is a central longitudinal cross-sectional view.

4 is a plan sectional view showing an example of a minute exit.

5 is a front view of the same outlet.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for purifying an impregnated gas and an apparatus for performing the same, in particular, an impregnated gas is ejected from an ejection opening which is immersed in a washing liquid to face each other and is opened. Iii), and the impregnated gas is brought into contact with the liquid film to capture dust in the air stream by the liquid film.

Conventionally, many methods and apparatuses for purifying impregnated gases have been developed and have their own effects, but there is room for further improvement in terms of easier implementation, simpler structure, exhaust efficiency, and vibration damping effect. There is.

The present invention efficiently separates and removes dust from a dust-containing air stream using simple means. That is, an object of the present invention is to purify the impregnated gas by a simple means, and an object of the present invention is to purify the impregnated gas at a high rate, and an object of the present invention is to purify the gas which does not impose a large burden on the exhaust efficiency. An object of the present invention is to provide an apparatus for purifying a gas which can achieve a certain vibration damping effect.

In the method of the present invention, the impregnated gas is ejected from the jet port facing the opening in the washing liquid to form a liquid film at the interface where the airflow collides, and the liquid film captures dust in the gas.

Here, water is used as the washing liquid. In the jet impingement system of the impregnated gas, a thin, uncut liquid film is formed, and as the gas rises, the washing liquid in the liquid film is also raised as if it is circulated from below and gradually blown up to the liquid surface.

In this case, since the impregnated gas receives the hydraulic pressure determined by the liquid core in which the openings of the jet ports facing each other are located, it is necessary to be pressurized with a force enough to overcome this. Of course, it is preferable that both the ejection pressures of this dust-containing gas are the same.

Now, the principle of the present invention in which dust in the gas is captured by the liquid film will be described.

Gases impregnated at a pressure opposite to the liquid pressure are ejected from the jetting port opening in the washing liquid as opposed to each other. In this case, the impregnated gas collides with each other in front of the mutual jet port, but since the jet port is in the liquid, the impregnated air stream ejects continuously as bubbles by the action of the surface tension of the liquid, A thin liquid film sandwiched between bubbles is formed by the liquid surrounding the bubble, and the liquid film is always supplied to the liquid film by a hydraulic potential defined by the height from the jet port to the liquid surface. Is formed without cutting.

After the collision, the bubble breaks up into a bubble group and is pressed by the buoyancy force and subsequent bubbles, and rises by changing the direction of rapid flow in the direction of low liquid pressure, but then the bubble group is mixed violently and small bubbles are generated again. Ascend in chaos.

Therefore, the impingement airflows that face each other from the spout openings facing the liquid are each bubble, which collide in the jetting section successively, but the thin liquid film, which is not cut and formed between the bubbles during the collision, is pushed together at the airflow speed just before the collision, It is in the same state as it was.

If the speeds of the impregnated airflows ejected from each ejection port are U and U, each airflow having a speed U will collide at a speed of U + U = 2U assuming that one airflow is stopped. The dust in the air stream having a speed of U immediately before the collision enters the liquid film of the collision surface with an inertial force obtained in the air stream of a speed of 2U.

Thus dust is separated from the gas.

In order to implement this method most effectively, the following apparatus is suitable. In particular, the liquid film is formed by the pressure of the impregnated gases ejected to face each other, and since the cleaning liquid is always supplied, it is the most suitable device for maintaining the liquid film without being cut off.

As shown in FIG. 1, the inner case 2 is built in the outer case 1.

The enclosure 1 has a discharge port 3 at its upper end, has a drain 4 at its lower end, and a valve 5 is provided at the dren.

Moreover, the liquid quantity regulator 6 is attached to the side surface of the enclosure 1. The liquid level regulator 6 has a jacket 6b attached to the lower side of the enclosure 1 so as to surround the opening 6a, and the dam 6c is provided in the jacket 6b. The discharge path 6e which can adjust the magnitude is provided by the control plate 6d which moves up and down on the dam. The adjusting plate 6d for adjusting the discharge passage 6e is supported by the tip of the adjusting shaft 6f inserted into the upper end surface of the jacket 6b with a watertight seal. While moving up and down, move up and down and adjust the discharge path (6e) to large and small. 6g in the figure is an adjustment handle.

The inner case 2 provided in such an enclosure 1 communicates with the air-transmission cylinder 7 inserted in the side part of the enclosure 1, and is carrying | supported.

The lower end of the inner case 2 is open and is substantially in communication with the outer case 1. At the lower end center part of the inner case 2, the opposing walls 8 and 8 which extend upwards in the inner case 2 and divide the lower middle part in the inner case 2 are provided.

It is preferable that the opposing walls have portions substantially opposed to each other, and therefore, a cylinder supported by means such as a girder may be provided in the inner box 2 whose lower end is opened.

On the opposing walls 8 and 8 of this inner case 2, the ejection openings 9 and 9 which communicate with each other in the outer case 1, as opposed to each other, protrude.

In this way, the delivery container 7 communicates with the ejection openings 9 and 9. As shown in FIG.

Each tip of the ejection openings 9 and 9 has an appropriate interval D. Thus, the inner side divided into two substantially at the opposing walls 8 and 8 is communicated without being closed by the spout 9 and 9 to the upper end.

This situation is clearly shown in FIG.

Although FIG. 3 shows the center part of FIG. 1 terminated, both sides open | release between the opposing walls 8 and 8 of the inner case 2, and the lower part is closed with the washing | cleaning liquid according to this. On the liquid level, substantially holes 10 and 10 were formed.

As shown in FIG. 3, air flow is discharged from the holes 10 and 10 onto the liquid level of the enclosure 1 as shown by the arrow.

In FIG. 1 and FIG. 3, 11 is an acid-liquid pipe | tube, it is inserted in the upper side of the inner case 2, and is equipped with the acid-liquid nozzle 12 in the downward direction.

By this acid-liquid pipe 11, the washing | cleaning liquid L is spread | contacted so that it may come into contact with the gas containing gas sent to the inner container 2, where the washing liquid which wash | cleaned to some extent with the dust-containing gas first passes through the inner container 2, At its open bottom it is sent in an enclosure 1 and finally filled in an enclosure 1, an enclosure 2. In FIG. 1 and FIG. 2, the dotted line displayed in the enclosure 1 and the enclosure 2 shows the liquid level at the time when the impregnated gas was not conveyed.

The final amount of the washing liquid remaining in the enclosure 1 and the enclosure 2 is set by the liquid level regulator 6 in proportion to the pressure of the containing gas.

In other words, the amount of liquid (the height of the liquid surface) increases the amount of liquid so as to increase the water pressure in the vessel (particularly between the inner walls 8 and 8) when strongly impregnating the impregnated gas.

As shown in FIG. 3, when the structure of the blower outlet 9 is lengthened sideways, this is the same as that shown in FIG. 4 and FIG. … It is good to partition into. This thick wall (13) ... … In particular, as indicated in Fig. 4, the air is contained in a direction opposite to the ejection direction of the impregnated gas indicated by the arrow, a low pressure portion of the air stream is provided, and the washing liquid is sent out while the impregnated air stream is removed therefrom.

As a result, the impregnated gas and the washing liquid ejected from the jet port 9 are sufficiently connected.

In addition, the structures of the ejection openings 9 and 9 should just be arrange | positioned so as to oppose as a whole, and can be applied in various forms.

The device works as follows.

The impregnated gas which is pressurized by the sending container 7 first enters into the case 2. Above the inner case 2, the acid solution pipe 11 is provided and the washing | cleaning liquid is spread | dispersed by the acid salt nozzle 12. As shown in FIG. That is, the washing | cleaning liquid stays not only in the inner container 2 but also in the outer container 1, and the total retention amount of the inside of a container is adjusted so that the liquid level controller 6 may maintain predetermined liquid level (dotted line).

The dust-containing gas is first secured and removed to some extent by the washing liquid scattered in the inner box 2. The cleaning liquid mist (mist) which secured the dust is loaded on the liquid level of the inner container 2 as it is.

The impregnated gas presses the liquid level (dotted line) in the inner box 2, and reduces the liquid level to the position indicated by the solid line. Thus, the impregnated gas is blown into the washing liquid from the blowing holes 9, 9 formed in the inner walls 8, 8 of the inner box 2.

As a result, the washing liquid is removed from the jet system in the range of the jet velocity of the impregnated gas. Nevertheless, the impregnated gas is ejected from the ejection openings 9 and 9 provided as opposed to each other, so that the impingement gas collides with each other to face each other. This collided bubble rapidly turns upward from the collision surface, breaks up into bubble groups, rises in a chaotic state, and discharges upward through the liquid surface between the inner walls 8 and 8. do.

The liquid film HP is formed in the collision surface of the impregnated gas. The liquid film HP always supplies the cleaning liquid by the hydraulic potential defined by the height of the pressed liquid level in the enclosure 1 as much as the portion where the liquid level in the enclosure 2 is pressed down. Thereby, the liquid film HP is set without being cut off.

Thus, the dust in the impregnated gas enters the liquid film HP with the inertia force guaranteed at twice the speed of each airflow and is captured.

In addition, since the dust that is not captured by the liquid film is collected and solidified near the collision surface due to the inertia force, it is easily applied to the liquid during the disruption of the bubbles after the collision and during the confusion movement of the bubble group during the rise. Is captured.

The purified gas is discharged into the enclosure 1 from the through holes 10 and 10 opened on the liquid level, and discharged from the discharge port 3 to the outside.

According to the invention, the vibration-containing gas is vibration-purified with high accuracy. Moreover, since it does not interfere with an airflow path very much unlike a general filter type, purification efficiency is extremely good.

In particular, depending on the structure of the jet port, the contact ratio between the cleaning liquid and the impregnated gas is increased, and the purifying dust removal effect is further improved.

Normally, the power consumption required for increasing the airflow speed increases in proportion to the third product of the speed increase, but the present invention can give a large inertia force to the dust in the airflow without increasing the flow velocity of the impregnated gas as a collision effect. Therefore, a high performance purification device with low power consumption can be provided.

Claims (1)

The impregnated gas is blown out from the spout which has the opposing opening in the liquid, and a liquid film is formed between the spouts by the jet pressure of the impregnated gas, and the impregnated gas is pressed against the liquid film, and the dust in the air stream is pressed against the liquid film. A purifying method of an impregnated gas, characterized by trapping.

Images