KR101605382B1 - The equipment of neutralizing when the basic chemical is leaked - Google Patents

Abstract

The present invention relates to a neutralizing apparatus for neutralizing a basic chemical leaking out of a fire extinguisher, and more particularly, to a neutralizing apparatus for neutralizing a basic chemical leaking out of a basic chemical leaking out of a basic chemical such as sodium hydroxide, potassium hydroxide, hydrogen peroxide, ammonia, In case of outbreak, it is sprayed with an accumulator filled with citric acid, fumaric acid, dilute hydrochloric acid, acetic acid neutralizer (powder or liquid) and surfactant, The present invention relates to a neutralizing device for neutralizing a substance.
To this end, the present invention is a neutralizing device for neutralizing a basic chemical by charging a neutralizing agent (powder or liquid) such as citric acid, which is a neutralizing agent of a basic chemical, and a surfactant.
Citric acid, etc. Neutralizing agent (powder or liquid) is a chemical compound of inorganic basicity and is a white powder or liquid phase with weak acidity. Citric acid is widely used to neutralize basic substances and reacts with bases to produce non-toxic salts and water, which is characterized by no secondary environmental pollution. Surfactants also help prevent and neutralize toxic gases and liquids from evaporating.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a neutralizing apparatus for neutralizing leaking basic chemicals,

The present invention relates to a neutralizing apparatus for neutralizing a basic chemical leaking out of a fire extinguisher, and more particularly, to a neutralizing apparatus for neutralizing a basic chemical leaking out of a basic chemical leaking out of a basic chemical such as sodium hydroxide, potassium hydroxide, hydrogen peroxide, ammonia, In case of outbreak, it is sprayed with an accumulator filled with a basic neutralizing agent (powder or liquid) such as citric acid, fumaric acid, dilute hydrochloric acid, acetic acid and a surfactant, And a neutralization apparatus for neutralizing a chemical substance.

Recently, many property and human casualties have been caused by chemical accidents such as Gumi Foshan accident, chlorine gas leak accident. In the case of Gumi Foshan accident, if the first quick action was taken in case of an accident, the property of the people and damage of people could be minimized. In the Gumi Foshan accident, firefighters sprayed water on Foshan, which caused accidents to become more serious. Currently, there is no initial response to chemical accidents, and it is a reality that they are spraying fences, adsorbents or neutralizing agents by hand.

Japanese Patent Application No. 10-0847444 discloses a method for neutralizing sulfuric acid wastewater by using light mineral dolomite. In particular, since the neutralization treatment of sulfuric acid wastewater is performed at a smaller amount than that of the conventional lime, the cost is reduced, The present invention relates to a method for neutralizing sulfuric acid wastewater using a dolomite of light weight.

The neutralization treatment method of sulfuric acid wastewater using such a light dolomite has been proposed for the following reasons.

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Caustic soda (calcium oxide), magnesium hydroxide, caustic soda, and carbonated soda have been used for the neutralization treatment of industrial wastewater (sulfuric acid wastewater). However, in most cases, 2) is used.

However, when calcium hydroxide (calcium hydroxide) is used to neutralize sulfuric acid wastewater (pH 7.0 ~ 11.0), gypsum (CaSO4 · 2H2O), which is an insoluble matter (sludge), is generated during the neutralization reaction. The material is very low in solubility (0.22 g / 100 g water) and becomes much sludge so that the cost of wastewater treatment due to waste treatment is greatly increased.

That is, the weight required to neutralize 1.0 ton of sulfuric acid by slaked lime is 1.4 ton of gypsum through chemical reaction formula.

Further, the gypsum and treated water are required to be post-treated.

<Chemical reaction formula>

2Ca (OH) 2 + 2H2SO4 -> 2CaSO4 (1.4 tons) + 4H2O

Also, a large amount of gypsum material with low solubility is cured according to changes in flow rate, temperature, and residence time, resulting in a scale, which causes troubles due to clogging of piping and a lot of time for cleaning it Furthermore, it causes residual hardness in the downstream part, which causes serious problems in hardness preprocessing in water recycle.

Thus, JP-A-10-0847444 (titled "Method for neutralizing sulfuric acid wastewater by using light earth dolomite") has proposed the following constitution.

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A first reaction tank in which a blower is installed and in which sulfuric acid wastewater for neutralization flows, and a sulfuric acid wastewater which is fed through a pipe by the operation of a transfer pump; and a second reaction tank in which the reacted mixture is transported through a pipe A second reaction tank in which the gypsum component is settled, a first reaction solution in which the first treatment water except for the gypsum settled in the first precipitate solution is fed through a pipe, and a second reaction tank in which the reacted mixture in the second reaction tank is fed through a pipe A second sedimentation step in which the gypsum component is transferred to the bottom surface and the secondary treatment water excluding the gypsum precipitated on the second sedimentation bottom surface is finally discharged through a pipe and the gypsum is dehydrated to treat the waste rock, A method of neutralizing sulfuric acid wastewater by using a light dolomite through a sulfuric acid wastewater neutralization treatment facility comprising a dehydrator for transferring the filtrate to the first reaction tank The material to be added to the first reaction tank and the second reaction tank for the neutralization treatment of the sulfuric acid wastewater is respectively lightweight dolomite and the sulfuric acid wastewater is neutralized to pH 1.5 to 11.0 in the first reaction tank, The pH is adjusted to 7.5 to 11.0 for the efficient reaction of fluorine at high concentration.

The thus-constructed Patent Registration No. 10-0847444 has a problem in that it can not quickly cope with the damage caused by a chemical accident such as a recent Gulf of Foshan accident or a chlorine gas leak accident.

For the same reason, it is urgent to develop an apparatus or a method that can quickly cope with a leakage accident of basic chemicals (sodium hydroxide, potassium hydroxide, hydrogen peroxide, ammonia, etc.) in a factory or transportation.

Patent Registration No. 10-0847444 (Published on July 21, 2008)

The present invention is characterized in that a general accumulative container is filled with a neutralizing agent such as citric acid, which is a neutral chemical of a basic chemical, and a surfactant, and is quickly operated upon occurrence of an accident, so that a powdery or liquid neutralizing agent having good flowability reacts with a basic chemical, It is an object of the present invention to provide a neutralization device for suppressing and neutralizing evaporation.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

It is an object of the present invention to provide a self-priming main container having a neutralizing agent for neutralization of a basic chemical; A neutralizing agent for neutralizing leaking basic chemicals, which is mounted on the main body container and includes a lever for spraying a neutralizing agent contained in the main body container to the outside, a radiation hose, and a safety pin; Lt; / RTI &gt;

Preferably, the accumulator body container further contains a surfactant which helps to suppress and neutralize the toxic gas and the evaporation of the liquid.

In addition, the main container may be maintained at a pressure of 7 to 9.8 kgf / cm 2 to prevent the medicine from solidifying for semi-permanent use. The neutralizer may be citric acid, fumaric acid, dilute hydrochloric acid, , And acetic acid.

As described above, the present invention relates to a neutralization apparatus for neutralizing a basic chemical by leaking a basic chemical, and more particularly, to a neutralization apparatus for neutralizing neutral chemical using a basic chemical such as sodium hydroxide, potassium hydroxide, hydrogen peroxide, ammonia, In case of material leakage, accumulator filled with citric acid, fumaric acid, dilute hydrochloric acid, acetic acid neutralizer (powder or liquid) and surfactant The present invention relates to a neutralization apparatus for neutralizing basic chemicals by spraying a neutralizing agent such as citric acid and a surfactant into a container of a very simple, And the damage of the property and the person can be minimized.

Brief Description of the Drawings Fig. 1 is a diagram showing a neutralization apparatus for neutralizing leachate basic chemicals according to the present invention,
FIGS. 2 to 3 are diagrams for explaining an application example of the neutralization apparatus according to the present invention when basic chemical leaks. FIG.

The present invention relates to a neutralizing device for neutralizing a neutral chemical by spraying a basic chemical in the same manner as a portable fire extinguisher when a basic chemical is leaked.

Such a neutralization apparatus is filled with a neutralizing agent (powder or liquid) such as citric acid, which is a neutralizing agent of a basic substance, and a surfactant, and the pressure is maintained at 7 to 9.8 kgf / cm 2.

The neutralizing agent (powder or liquid) such as citric acid is a chemical compound of inorganic acid and is a white powder or liquid phase having weak acidity. Citric acid is widely used to neutralize basic chemicals, and it is characterized by the fact that it reacts with bases to produce non-toxic salts and water, thus no secondary environmental pollution. Surfactants also help prevent and neutralize toxic gases and liquids from evaporating.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

FIG. 1 is a view showing a main structure of a neutralization apparatus 100 for neutralizing leach basic chemicals (sodium hydroxide, potassium hydroxide, hydrogen peroxide, ammonia, etc.) according to the present invention and the neutralization apparatus 100, 100 is composed of an axial pressure type main container 10 in which a neutralizing agent 40 and a surfactant 50 are embedded and a radiation part 30 including a lever 31, a radiation hose 32 and a safety pin 33 .

The neutralizing agent 40 for neutralizing the basic chemical substance 220 comprises at least one of citric acid, fumaric acid, dilute hydrochloric acid, and acetic acid, Pressure type main container 10 in the form of a liquid. On the other hand, the pressure-sensitive main container 10 is also filled with a surfactant 50, which helps to suppress and neutralize the evaporation of toxic gases and liquids. The main container 10 is pressurized with a pressure of 7 to 9.8 kgf / cm 2, so that the neutralizing agent and the surfactant are not hardened and can be used semi-permanently.

Inside the container 10, a neutralizing agent such as citric acid is weakly acidic and can be scratched when inner iron is corroded, so it is coated with an epoxy or a phosphate having an acid resistance inside.

The radiating part 30 is mounted on the main body container 10 and includes a lever 31 for injecting the neutralizing agent 40 built in the main body container 10 to the outside, a radiation hose 32, a safety pin 33 ), And the configuration and functions of the configuration are the same as those of a general fire extinguisher.

The neutralization apparatus 100 configured as described above may be constructed of citric acid, fumaric acid, dilute hydrochloric acid, or the like as shown in FIG. 3 during transportation to a vehicle 200 equipped with a factory or a tank 210. [ , Acetic acid, etc., are used to neutralize basic chemicals and are used in the same manner as the spray form of fire extinguishers. That is, the safety pin 33 is pulled out, the radiation hose 32 is directed toward the basic chemical substance, and then the lever 31 is pressed to spray the neutralizing agent 40 and the surfactant 50.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will readily occur to those skilled in the art without departing from the spirit and scope of the invention. Therefore, it should be understood that the disclosed embodiments are to be considered in an illustrative rather than a restrictive sense, and that the true scope of the invention is indicated by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof, .

10: main container 30:
31: Lever 32: Radiation hose
33: Safety pin 40: Neutralizer
50: Surfactant

Claims (3)

An axial main body container (10) containing a neutralizing agent (40) for neutralizing the basic chemical (220);
A lever 31 for ejecting the neutralizing agent 40 built in the main body container 10 to the outside, a radiation hose 32, and a safety pin 33 (30)
The axial pressure-type main container 10 further includes a surfactant 50,
The main container 10 is in a pressure state of 7 to 9.8 kgf /
Wherein the neutralizing agent (40) comprises at least one of citric acid, fumaric acid, dilute hydrochloric acid, and acetic acid. The neutralizing agent (40) Device.
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