JPS5823130B2 - Haikigasushiyorihouhou - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a shower room 2 in the middle of an exhaust path 1, and supplies hot water 3 containing a flocculant mainly consisting of a mixture of dialkylamino 2-butynyl sulfonate and allylamide into the shower room 2. This relates to an exhaust gas treatment method characterized by atomizing the pollutants in the exhaust gas to agglomerate them, and the purpose of this method is to atomize the exhaust gas so that the pollutants in the exhaust gas can be efficiently cleaned. To provide a gas processing method.

Pollution has now become a serious social problem.

In particular, pollutants in the exhaust gas emitted from various factories are a cause of air pollution, and although many ideas and inventions have been made to purify this exhaust gas, there is still no definitive solution. Things are not limited.

The present invention was invented in view of the above points.1. The present invention will be explained in detail below with reference to Examples.

In the figure, reference numeral 1 indicates an exhaust path for exhaust gas discharged from various factories such as a waste incineration factory, a chemical factory, a petrochemical factory, a steel factory, and a paint factory, and a shower room 2 is provided in the middle of the exhaust path 1.

A nozzle 4 is arranged at the top or upper side of the shower room 2, and this nozzle 4 communicates with a tank 6 through a pipe 5.

Warm water 3 containing a flocculant is stored in the tank 6, and the flocculant is dissolved in the hot water 3 and sprayed into the shower room 2 from a nozzle 4 through a pipe 5 to act on the exhaust gas.

By the way, the polluting substances that cause pollution in exhaust gas include nitrogen oxides, sulfur oxides, carbon monoxide, halogen compounds such as chlorine and bromine, cyan scum used in painting, and xylene. Highly active substances such as volatile processing agents become pollution-generating substances, and when they come into contact with flocculants, they react instantaneously and adsorb the flocculants around these molecules and atomic groups.

Of course, this adsorption removes odors, and such adsorption results in pollution-generating substances becoming aggregates and being washed away by hot water downward.

Only the purified exhaust gas is discharged into the atmosphere from the exhaust path 1.

In this case, the flocculant is dissolved in hot water of 30° C. to 70° C. and acts on the pollutants, so that the reaction rate is significantly increased and the flocculation efficiency is increased.

The flocculant used here has the general formula RR'NCH2
CH-CHCH2SO3・XMOH (where R and R
' is an alkyl group, X is 0.05-1, M is thorium or potassium) dialkylamino 2-
It is a flocculant based on a mixture of butynyl sulfonate and allylamide, and the dialkylamino 2-butynyl sulfonate is preferably one in which the number of carbon atoms in the alkyl groups R and R' is 5 or less; A methyl group is particularly preferred.

In addition, X in XMOH is said to be in the range of 0.05 to 1, but if it is less than 0.05, the deodorant becomes acidic, depending on the mixing ratio of this and allylamide, which is another component. On the other hand, if it is more than 1, the result will be too alkaline.
This is because it causes inconvenience in actual application, and the mixing ratio of allylamide to dialkylamino 2L butynyl sulfonate may be appropriately determined depending on the deodorizing conditions.

When used, this flocculant mixture is diluted 10 to 100 times.

Note that a shower room 2 may be further placed in the middle of the exhaust path 1, or a water shower room 7 for spraying water 9 containing a flocculant may be placed side by side.

Furthermore, if a shower room 8 for washing away aggregates is arranged between the outlet of the exhaust path 1 and the shower room 2 as shown in FIG.
Among the agglomerated substances that aggregated in the shower room 2, the aggregated substances that are not washed away by hot water and are contained in the exhaust gas,
The aggregates are completely washed away by the washing liquid 12 in the shower room 8 for washing off the aggregates.

Of course, in this shower room 8 for washing away the aggregated substances, instead of simply washing away with water or warm water, the flocculant may be dissolved in water or warm water and then washed away with this.

In the figure, 10 is a water tank that stores water containing a flocculant, and 1
1 is a tank for a flocculate washing liquid.

According to the results of the same experiment, the above-mentioned exhaust gas treatment
When using hot water at 20°C, no abnormal odor was detected in the exhaust gas discharged from exhaust passage 1;
When the test was carried out using cold water, the exhaust gas discharged from the exhaust passage 1 had a slightly strange odor, and it was confirmed that the effect was improved by using hot water.

In the present invention, a shower room is provided in the middle of the exhaust passage, and hot water containing a coagulant is sprayed in the shower room to coagulate harmful substances in the exhaust gas. Therefore, the polluting substances in the exhaust gas are showered away. It effectively contacts the flocculant in hot water and reacts instantaneously to form a flocculate with low activity, which not only eliminates the impact on the human body, but also
Because the flocculant is contained in hot water, it has the advantage of a faster reaction rate and higher flocculation efficiency.In particular, when a shower of cold water is sprayed onto the exhaust gas, if the exhaust gas is at a low temperature, it becomes even colder and flocculate. In addition, even if the exhaust gas is at a high temperature, the exhaust gas is cooled by a shower of cold water and becomes low temperature, resulting in poor coagulation efficiency, especially when multiple shower rooms are provided as in the embodiment of the present invention. The earlier the exhaust gas advances, the colder it is with a shower of cold water, and the lower the temperature, and the worse the coagulation efficiency becomes. However, in the present invention, since hot water is showered with a coagulant, when the exhaust gas is at a low temperature, However, the reaction rate can be increased, and even if the exhaust gas is at a high temperature, it can be prevented from cooling, increasing the reaction rate and increasing the coagulation efficiency.

In addition, the agglomerated substances that are agglomerated to agglomerate pollutants in the shower room are washed away with hot water.
The exhaust gas can be completely purified and released without being released into the atmosphere together with the exhaust gas, thereby further preventing pollution caused by the exhaust gas.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of one embodiment of the present invention, and FIG. 2 is a schematic explanatory diagram of another embodiment of the invention, in which 1 is an exhaust path, 2 is a shower room, and 3 is hot water.

Claims (1)

[Claims] 1. A shower room is provided in the middle of the exhaust passage, and hot water containing a flocculant whose main ingredient is a mixture of dialkylamino 2-butynyl sulfonate and allylamide is sprayed in the shower room to eliminate pollution in the exhaust gas. An exhaust gas treatment method characterized by coagulating generated substances. .