KR20240098345A - Double type system for deodorization and remanent removal of chlorine dioxide gas - Google Patents

Abstract

The present invention relates to a double-type deodorizing and excess chlorine dioxide gas removal system, which enables treatment water to be recycled as cleaning water without discharging strongly acidic wastewater when producing chlorine dioxide gas, reduces the cost of producing chlorine dioxide by reducing the amount of chemical used when producing chlorine dioxide gas, enables the maximum amount of chlorine dioxide gas to be produced using the minimum amount of chemical, and effectively removes malodorous substances by promoting a mixing reaction of chlorine dioxide gas, at the same time, removes excess chlorine dioxide gas through a primary removal process and a secondary removal process, and then discharges clean air into the atmosphere, thereby being very environmentally friendly.

Description

Double type deodorization and excess chlorine dioxide gas removal system {DOUBLE TYPE SYSTEM FOR DEODORIZATION AND REMANENT REMOVAL OF CHLORINE DIOXIDE GAS}

The present invention is a double-type deodorization and excess chlorine dioxide gas that deodorizes odorous substances (odorous gas) from waste liquid using chlorine dioxide gas, and discharges clean air into the atmosphere by filtering the excess chlorine dioxide gas remaining after the deodorization process. This relates to a removal system. More specifically, it effectively removes odorous substances by promoting the mixing reaction of chlorine dioxide gas, and at the same time removes excess chlorine dioxide gas through the first and second removal processes and discharges clean air into the atmosphere. Furthermore, double-type deodorization and excess chlorine dioxide gas removal can further increase the efficiency of the deodorization reaction by supplying a mixed gas (chlorine dioxide gas + odor gas) at an appropriate concentration by operating the stirring module before the deodorization reaction. It's about the system.

As the standard of living improves and the consumption of meat increases, livestock farming, which was previously conducted on a small scale, has become large-scale, and the odor generated from livestock excrement is very severe.

There is a serious emerging problem of decomposing and oxidizing odors and toxic substances generated in industrial facilities due to environmental regulations.

One way to remove these odorous gases or toxic substances is to use chlorine. Chlorine dioxide is a compound with excellent deodorizing properties that decomposes odorous gases, and also acts as a strong oxidizer, so it can be used as a replacement for chlorine, a disinfectant used in water purification plants. It is also highlighted as a material.

Methods for producing chlorine dioxide, which can be used for sterilization, disinfection, deodorization, bleaching, etc., can be broadly divided into methods of reducing chlorate and methods of oxidizing chlorite. The reduction method requires large-scale facilities and large investments. , The oxidation method using alkali metal chlorite as a starting material can be produced with simple facilities and low investment, so the method using chlorite is widely used.

Chlorine dioxide is a green gas with a unique odor, and when cooled, it turns into a yellow-red liquid. Chlorine dioxide is known to be a very effective substance for sterilization and odor removal due to its strong oxidizing power generated by oxygen.

Chlorine dioxide was developed in the early 19th century. Initially, because it was a very unstable gas, it was used very limitedly for bleaching pulp and leather, as a disinfectant, and as a preservative. However, efforts to use chlorine dioxide in daily life continued, and in recent years, BIO-CIDE, an American company, powders chlorine dioxide for easy use.

Chlorine dioxide has an oxidizing power about 2.5 times stronger than that of chlorine-based chemicals, and has a strong deodorizing and sterilizing effect without any irritating odor. Unlike air fresheners or deodorizers, it eliminates odors, bacteria, viruses, mold, and some pollutants at the source. Because it oxidizes and decomposes, it has the advantage of maintaining a comfortable environment. It oxidizes and precipitates heavy metals such as manganese and iron in the water, removes moss, and increases dissolved oxygen to improve freshness.

Unlike conventional chlorine-based substances, chlorine dioxide rarely produces carcinogens such as trihalomethane, chloroamine, and chlorophenol. And because it is an oxygen-based oxidizing agent, it is harmless to humans and animals when diluted and used, and has the characteristic of being less corrosive than existing chlorine-based sterilizing disinfectants.

Chlorine dioxide is a disinfectant and sterilizer that can compensate for the shortcomings of ultraviolet rays (UV), chlorine, and ozone. Recently, the concentration of chlorine dioxide has been diluted to about 8-10% in food manufacturing plants, water purification plants, and sewage treatment plants. It is used as a disinfectant and disinfectant.

Meanwhile, several methods for producing chlorine dioxide are known, and the chemical equation for producing chlorine dioxide using sodium chlorate and hydrochloric acid is as follows.

2NaClO ₃ + 4HCl -> 2ClO ₂ + 2NaCl + Cl ₂ + 2H ₂ O

The chemical equation for producing chlorine dioxide using sodium chlorate and chlorine is as follows.

2NaClO ₃ + Cl ₂ -> 2ClO ₂ + 2NaCl

The chemical equation for producing chlorine dioxide using sodium chlorite and hydrochloric acid or sulfuric acid is as follows.

5NaClO ₂ + 4HCl -> 4ClO ₂ + 5NaCl + 2H ₂ O

2NaClO ₂ + 2H ₂ SO ₄ -> 4ClO ₂ + NaCl + 2Na ₂ SO ₄ + 2H ₂ O

The chemical reaction equation for producing chlorine dioxide using sodium chlorite, sodium hypochlorite, hydrochloric acid, or sulfuric acid is as follows.

2NaClO ₂ + NaClO + 2HCl -> 2ClO ₂ + 3NaCl + H ₂ O

2NaClO ₂ + NaClO + 2H ₂ SO ₄ -> 2ClO ₂ + NaCl + Na2SO ₄ + H ₂ O

However, when chlorine dioxide is produced in the above manner, acidic wastewater is generated as a mixture of sodium chlorite, sodium hypochlorite, and hydrochloric acid or sulfuric acid reacts.

In other words, because the raw materials are all acidic substances, strongly acidic waste water is generated after these substances react. Therefore, there is a problem that it costs a lot of money to treat acidic wastewater. In particular, when introducing odor reduction facilities using chlorine dioxide in livestock waste treatment plants where a lot of odorous substances are generated, there is a burden of having to install additional facilities to treat acidic wastewater or outsourcing the treatment. Accordingly, the problem of reluctance to install odor reduction facilities has been pointed out.

In addition, the conventional method of producing chlorine dioxide has the disadvantage of being uneconomical due to the high consumption of raw materials, and the capacity of the compressor to introduce air into the reactor must be at least 7.5 horsepower, which has the problem of high operating costs.

Republic of Korea Patent Publication No. 10-2291292 (August 12, 2021)

The present invention was invented to solve the above problems. The first purpose is to reduce the cost of producing chlorine dioxide by reducing the amount of chemicals used when producing chlorine dioxide gas, and to produce the maximum amount of chlorine dioxide gas using the minimum amount of chemicals. It is an eco-friendly double type that effectively removes odorous substances by promoting the mixing reaction of chlorine dioxide gas and at the same time removes excess chlorine dioxide gas through the first and second removal processes and discharges clean air into the atmosphere. To provide a deodorization and excess chlorine dioxide gas removal system.

In addition, the second object of the present invention is to provide an eco-friendly double-type deodorization and To provide a system for removing excess chlorine dioxide gas.

In order to achieve the above object, the double-type deodorization and excess chlorine dioxide gas removal system according to the present invention includes a chlorine dioxide gas generator that generates chlorine dioxide gas; a chlorine dioxide gas deodorization reactor for removing odor gas (odorous substances) from waste liquid using chlorine dioxide gas supplied from the chlorine dioxide gas generator; A first excess chlorine dioxide gas remover connected to the chlorine dioxide gas deodorization reactor and primarily removing chlorine dioxide gas remaining after the deodorization reaction of the chlorine dioxide gas deodorization reactor; a second excess chlorine dioxide gas remover for re-removing excess chlorine dioxide gas that was not removed by the first excess chlorine dioxide gas remover and then discharging clean air into the atmosphere; and a suction pump for sucking the chlorine dioxide gas remaining in the first excess chlorine dioxide gas eliminator into the second excess chlorine dioxide gas eliminator. There are technical features including:

In addition, the chlorine dioxide gas generator includes a drug storage unit for storing various drugs; a drug supply unit that supplies various drugs stored in the drug storage unit; a drug reaction tank that reacts the drug supplied by the drug supply unit to generate chlorine dioxide gas; and a control unit (PLC) for controlling and monitoring chlorine dioxide gas production; can be provided.

In addition, the chlorine dioxide gas deodorization reactor includes a deodorization reaction tower connected to a mixed gas supply line that supplies a mixed gas of chlorine dioxide gas and odorous gas (odorous substances); and a deodorizing reaction fan that stirs the mixed gas flowing into the deodorizing reaction tower to cause a deodorizing reaction. can be provided.

In addition, the first excess chlorine dioxide gas remover includes a first excess chlorine dioxide gas removal tower into which chlorine dioxide gas flows and forming a first space therein to remove the excess chlorine dioxide gas; a cleaning water spray nozzle unit that sprays cleaning water into the first space to remove excess chlorine dioxide gas; A filter that filters foreign substances and moisture contained in the chlorine dioxide gas flowing from the chlorine dioxide gas deodorization reactor; and a first washing water supply unit for removing excess chlorine dioxide gas in the first space by spraying washing water through the washing water spray nozzle unit. can be provided.

In addition, the second excess chlorine dioxide gas remover includes a second chlorine dioxide gas removal tower into which chlorine dioxide gas flows and forming a second space therein to remove the excess chlorine dioxide gas; a cleaning water spray nozzle unit that sprays cleaning water into the second space to remove excess chlorine dioxide gas; a filter that filters foreign substances and moisture contained in the chlorine dioxide gas flowing from the first excess chlorine dioxide gas remover; and a second washing water supply unit for removing excess chlorine dioxide gas in the second space by spraying washing water through the washing water spray nozzle unit. can be provided.

In addition, a filling member is installed in the second space, and the filling member can increase the contact area between chlorine dioxide gas and washing water to improve chlorine dioxide gas removal efficiency.

In addition, a UV lamp is installed in the second space, so that chlorine dioxide gas can be heated and efficiently removed.

In addition, a first connection duct is installed at a position connecting the chlorine dioxide gas deodorization reactor and the first excess chlorine dioxide gas remover, and connects the first excess chlorine dioxide gas remover and the second excess chlorine dioxide gas remover. A second connection duct is installed at the location.

A chlorine dioxide gas measuring unit may be installed in the second connection duct.

In addition, the suction pump is installed in the second connection duct, the suction pump is mounted on the upper part of the base plate, and the base plate is provided with a plurality of springs to absorb vibration and prevent vibration noise. there is.

In addition, a stirring module for uniformly mixing (stirring) the mixed gas may be installed in the mixed gas supply line that supplies the mixed gas of chlorine dioxide gas and odorous gas (odorous substances).

In this way, the present invention has the following effects.

First, when producing chlorine dioxide gas, treated water can be recycled as washing water without discharging strongly acidic wastewater. The cost of chlorine dioxide production is reduced by reducing the amount of chemicals used when producing chlorine dioxide gas, and the maximum amount of chemicals is used by using the minimum amount of chemicals. Chlorine dioxide gas can be produced.

Second, it promotes the mixing reaction of chlorine dioxide gas to effectively remove odorous substances (odorous gas), and at the same time, clean air can be discharged into the atmosphere after removing excess chlorine dioxide gas through the first and second removal processes. Very eco-friendly.

Third, by operating the stirring module, a mixed gas of an appropriate concentration is supplied and undergoes a deodorization reaction, thereby further increasing the deodorization reaction efficiency.

Figure 1 is a configuration diagram showing a double-type deodorization and excess chlorine dioxide gas removal system according to an embodiment of the present invention.
Figure 2 is a plan view of Figure 1
Figure 3 is a configuration diagram explaining the generation of chlorine dioxide gas of the present invention
Figure 4 is a front view showing the chlorine dioxide gas generator of the present invention.
Figure 5 is a side view of Figure 4
Figure 6 is a plan view of Figure 4
Figure 7 is a diagram showing a double-type deodorization and excess chlorine dioxide gas removal system according to another embodiment of the present invention.
Figure 8 is a front view showing the stirring module in the double-type deodorization and excess chlorine dioxide gas removal system of Figure 7
Figure 9 is a longitudinal cross-sectional view showing the stirring module in the double-type deodorization and excess chlorine dioxide gas removal system of Figure 7.
Figure 10 is a rear view showing the stirring module in the double-type deodorization and excess chlorine dioxide gas removal system of Figure 7
FIG. 11 is a view showing a drive motor for auxiliary stirring and a bracket supporting the drive motor for auxiliary stirring in the double-type deodorization and excess chlorine dioxide gas removal system of FIG. 7.
Figure 12 is a plan view showing the stirring module in the double-type deodorization and excess chlorine dioxide gas removal system of Figure 7
Figure 13 is an enlarged view of part B of Figure 9

For reference, domestic high-concentration organic waste (food processing plants, livestock farms, wastewater treatment plants, livestock waste treatment plants, livestock waste treatment plants, waste incineration plants, industrial (complex) complexes, landfills, food factories, animal carcass landfills, chemical plants, etc.) Odor reduction facilities include odor reduction devices using chlorine dioxide (CLO2) gas equipment, which are conventional methods, or washing towers, which use designated odor substances such as propionic aldehyde, butyraldehyde, n-valeraldehyde, i-valeraldehyde, styrene, toluene, and xylene. There are limitations in processing ren, methyl ethyl ketone, butylacetate, and i-butyl alcohol.

High-concentration organic waste and odorous substances from asphalt concrete manufacturing plants are designated odorous substances containing vapor (moisture) and have a very large impact on air pollution. Although treatment methods using multi-stage washing towers and combustion have recently been applied, It is avoided due to the need for land, etc.

Device technology for reducing the odor of odorous substances containing vapor (moisture) and removing excess chlorine dioxide is a technology that is in line with the global trend of zero carbon dioxide by 2050.

Chlorine dioxide is a yellow-green gas with an odor similar to chlorine or ozone at room temperature. It is highly soluble in water, has an optical decomposition effect that decomposes easily under ultraviolet rays, and has a strong deodorizing power to fundamentally remove bad odors by oxidizing ammonia, hydrogen sulfide, mercaptan, phenol, etc. or by destroying the structure, and chlorine, Unlike ozone, it does not produce any carcinogens.

The characteristics of chlorine dioxide are as follows.

① Powerful deodorizing effect: With strong oxidizing power, it reacts with various odorous substances and structurally destroys them to eliminate odors (acidic, basic and neutral substances such as hydrogen sulfide, mercaptans, ammonia, amines, aldehydes, phenols, etc.) ② Wide range of sterilizing and disinfecting power: Oxygen type As a sterilizing/disinfecting agent, its oxidizing power is about 2.5 times stronger than that of chlorine-based chemicals (chlorine-based chemicals). It is the most effective sterilizing/disinfecting agent for removing viruses, green algae, and spores (anthrax, etc.), and exhibits sterilizing power in a wide pH range (2-10). . ③ Environmental friendliness: It does not produce disinfection by-products such as HAAs and THMs, is less corrosive than chlorine-based products, and is quickly decomposed into non-toxic substances by light, causing little environmental damage. ④ Biofilm (bacterial film) removal: Does not damage membrane when controlling biofilm in R/O, M/F, etc., and is used for sterilization and disinfection of cooling tower.

Hereinafter, a double-type deodorization and excess chlorine dioxide gas removal system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description.

The double-type deodorization and excess chlorine dioxide gas removal system of the present invention produces chlorine dioxide gas from a chlorine dioxide generator, and has a space where the produced chlorine dioxide gas can sufficiently contact the odor substance to be treated (odor substance residence time: 20 seconds) By providing a chlorine dioxide gas deodorization reactor (deodorization tower) that can provide a chlorine dioxide gas deodorization reactor (deodorization tower), it reacts sufficiently there to reduce odorous substances and at the same time provide a plurality of excess chlorine dioxides that can completely remove the excess chlorine dioxide supplied to the deodorization tower. Provide a gas remover (equipment) to discharge clean air below the allowable emission standard at the final outlet.

The double-type deodorization and excess chlorine dioxide gas removal system of the present invention uses chlorine dioxide gas to reduce odorous substances generated at the workplace by decomposing the odor on site, and uses a cleaning water spray nozzle unit (spray device). It is an eco-friendly system that completely removes excess chlorine dioxide gas by spraying cleaning water (treated water) through it and then discharges clean air into the atmosphere.

The reaction equation for removing major odorous substances in the present invention is shown in Table 1 below.

division Removal reaction scheme for major odorous substances ammonia 5H2S + 8ClO2 + 4H2O → 5H2SO4 + 8HCl
2NH3 + 2ClO2 + H2O → NH4ClO2 + NH4ClO3,
5H2S + 8ClO2 + 4H2O → 5H2SO4 + 8HCl
2NH3 + H2SO4 → (NH4)2SO4, NH3 + HCl → NH4Cl Mercaptan CH3SH + 2ClO2 + H2O → CH3SO3H + 2HOCL,
CH3SO3H + NH3 →
CH3SO3NH4 hydrogen sulfide 5H2S + 8ClO2 + 4H2O → 5H2SO4 + 8HCl
2NH3 + H2SO4 → (NH4)2SO4
NH3 + HCl → NH4Cl methyl sulfide (CH3)2S + 2ClO2 + H2O →
(CH3)2SO(Dimethylsulfoxide non-toxic, odorless) + 2HClO2 methyl disulfide 2(CH3)2S + 4ClO2 + 2H2O → aldehyde Aldehyde + ClO2 → Oxidized to carboxyl acid acetaldehyde CH3CHO + ClO2 → Oxidized to CH3COOH (vinegar acid)

Figure 1 is a configuration diagram showing a double-type deodorization and excess chlorine dioxide gas removal system according to an embodiment of the present invention, Figure 2 is a plan view of Figure 1, and Figure 3 is a diagram illustrating the generation of chlorine dioxide gas of the present invention. It is a configuration diagram, Figure 4 is a front view showing the chlorine dioxide gas generator of the present invention, Figure 5 is a side view of Figure 4, and Figure 6 is a top view of Figure 4.

1 to 6, the double-type deodorization and excess chlorine dioxide gas removal system 100 according to an embodiment of the present invention includes a chlorine dioxide gas generator 110 that generates chlorine dioxide gas; A chlorine dioxide gas deodorization reactor (120) for removing odorous gas (odorous substances) from waste liquid using the chlorine dioxide gas supplied from the chlorine dioxide gas generator (110); A first excess chlorine dioxide gas remover (130) connected to the chlorine dioxide gas deodorization reactor (120) and primarily removing chlorine dioxide gas remaining after the deodorization reaction of the chlorine dioxide gas deodorization reactor (120); a second excess chlorine dioxide gas remover (140) for re-removing excess chlorine dioxide gas that was not removed by the first excess chlorine dioxide gas remover (130) and then discharging clean air into the atmosphere; and a suction pump 150 to suck the chlorine dioxide gas remaining in the first excess chlorine dioxide gas eliminator 130 into the second excess chlorine dioxide gas eliminator 140; There are technical features including:

The chlorine dioxide gas generator 110 of the present invention generates chlorine dioxide gas.

The chlorine dioxide gas generator 110 includes a drug storage unit 111 that stores various drugs; a drug supply unit 112 that supplies various drugs stored in the drug storage unit 111; a drug reaction tank (113) that reacts the drug supplied by the drug supply unit (112) to generate chlorine dioxide gas; and a control unit (PLC) 114 for controlling and monitoring chlorine dioxide gas production. It may be configured to include.

The drug storage unit 111 stores sodium chlorate, sodium chlorite, sodium hypochlorite, and hydrochloric acid (sulfuric acid).

The drug supply unit 112 is a metering pump (chemical feeder) and serves to supply each drug in a preset amount. The drug supply unit 112 supplies and mixes the chemicals (chemicals) input from the drug storage unit 111 to the drug reaction tank 113 to generate chlorine dioxide gas.

The chemical reaction tank 113 generates chlorine dioxide gas, and the chemical reaction is as follows.

First, the chemical equation for producing chlorine dioxide using sodium chlorate and chlorine is as follows.

2NaClO ₃ + Cl ₂ -> 2ClO ₂ + 2NaCl

The chemical equation for producing chlorine dioxide using sodium chlorite and hydrochloric acid or sulfuric acid is as follows.

5NaClO ₂ + 4HCl -> 4ClO ₂ + 5NaCl + 2H ₂ O

2NaClO ₂ + 2H ₂ SO ₄ -> 4ClO ₂ + NaCl + 2Na ₂ SO ₄ + 2H ₂ O

The chemical reaction equation for producing chlorine dioxide using sodium chlorite, sodium hypochlorite, hydrochloric acid, or sulfuric acid is as follows.

2NaClO ₂ + NaClO + 2HCl -> 2ClO ₂ + 3NaCl + H ₂ O

2NaClO ₂ + NaClO + 2H ₂ SO ₄ -> 2ClO ₂ + NaCl + Na2SO ₄ + H ₂ O

The control unit (PLC) 114 can control and monitor chlorine dioxide gas production. The control unit 114 can select and operate in multiple stages according to the odor concentration/steam content to correspond to the odor concentration and vapor content.

In addition, the chlorine dioxide gas deodorization reactor 120 of the present invention removes odorous gases (odorous substances) from waste liquid using chlorine dioxide gas supplied from the chlorine dioxide gas generator 110.

The chlorine dioxide gas deodorization reactor 120 includes a deodorization reaction tower 121 connected to a mixed gas supply line (L) that supplies a mixed gas of chlorine dioxide gas and odorous gas (odorous substances); and a deodorization reaction fan (122) that stirs the mixed gas flowing into the deodorization reaction tower (121) to cause a deodorization reaction. Equipped with

By operating the deodorizing reaction fan 122, the mixed gas flowing into the deodorizing reaction tower 121 is stirred to cause a deodorizing reaction to remove bad odor.

It is desirable that the residence time of malodorous substances flowing into the space inside the deodorizing reaction tower 121 is at least 20 seconds.

In addition, the first excess chlorine dioxide gas remover 130 of the present invention is connected to the chlorine dioxide gas deodorization reactor 120, and primarily removes the chlorine dioxide gas remaining after the deodorization reaction of the chlorine dioxide gas deodorization reactor 120. Remove.

The first excess chlorine dioxide gas remover (130) is a first excess chlorine dioxide gas removal tower (131) into which chlorine dioxide gas flows and forms a first space (S1) therein to remove excess chlorine dioxide gas. ; a washing water spray nozzle unit 132 that sprays washing water into the first space S1 to remove excess chlorine dioxide gas; Filters 133 and 134 for filtering foreign substances and moisture contained in the chlorine dioxide gas flowing from the chlorine dioxide gas deodorization reactor 120; and a first washing water supply unit 135 for removing excess chlorine dioxide gas in the first space S1 by spraying washing water through the washing water spray nozzle unit 132; is provided.

The first washing water supply unit 135 includes a washing water tank 135a that stores washing water and a washing water supply pump 135b that supplies the washing water. When producing chlorine dioxide gas, treated water can be recycled as washing water without discharging strongly acidic wastewater.

In addition, the second excess chlorine dioxide gas remover 140 of the present invention again removes the excess chlorine dioxide gas that was not removed by the first excess chlorine dioxide gas remover 130 and then discharges clean air into the atmosphere.

The second excess chlorine dioxide gas remover 140 includes a second chlorine dioxide gas removal tower 141 into which chlorine dioxide gas flows and forming a second space S2 therein to remove excess chlorine dioxide gas; a cleaning water spray nozzle unit 142 that sprays cleaning water into the second space S2 to remove excess chlorine dioxide gas; Filters 143 and 144 for filtering foreign substances and moisture contained in the chlorine dioxide gas flowing from the first excess chlorine dioxide gas remover 130; and a second washing water supply unit 145 for removing excess chlorine dioxide gas in the second space S2 by spraying washing water through the washing water spray nozzle unit 142; is provided.

The second washing water supply unit 145 includes a washing water tank 145a and a washing water supply pump 145b.

A filling member 136 is installed in the second space S2, and the filling member 146 increases the contact area between chlorine dioxide gas and washing water to improve chlorine dioxide gas removal efficiency.

A UV lamp 147 is installed in the second space S2, and the mixed gas containing chlorine dioxide gas is heated (approximately 100°C to 300°C) by the UV lamp 137 to produce excessively introduced chlorine dioxide gas. After removing, clean air is discharged to the outside through the discharge part 138.

It is preferable that the UV lamps 137 are arranged in a zigzag shape to increase heating efficiency.

In addition, a first connection duct D1 is installed at a location connecting the chlorine dioxide gas deodorization reactor 120 and the first excess chlorine dioxide gas remover 130, and the first excess chlorine dioxide gas remover 130 A second connection duct D2 is installed at a location connecting the second excess chlorine dioxide gas remover 140. A chlorine dioxide gas measuring unit 20 is installed in the second connection duct D2, and an operator can detect chlorine dioxide gas using the chlorine dioxide gas measuring unit 20.

A suction pump 150 is connected to the second connection duct D2, and the suction pump 150 converts the chlorine dioxide gas remaining in the first excess chlorine dioxide gas remover 130 into the second excess chlorine dioxide gas. Inhale into the remover (140).

In addition, the suction pump 150 is installed in the second connection duct D2, the suction pump 150 is mounted on the upper part of the base plate 161, and the base plate 161 includes a plurality of springs ( 162) can be configured to absorb vibration and prevent vibration noise.

In the double-type deodorization and excess chlorine dioxide gas removal system 100 according to an embodiment of the present invention configured as described above, the chlorine dioxide gas and odor gas generated in the chlorine dioxide gas generator 110 are transferred to the chlorine dioxide gas deodorization reactor 120. ), the odor is removed through a deodorization reaction. At this time, the excess chlorine dioxide gas is first transferred to the first excess chlorine dioxide gas removal tower of the first excess chlorine dioxide gas remover 130 by the suction force of the suction pump 150. (131), and at this time, the operation of the first washing water supply unit 135 sprays the washing water through the washing water spray nozzle unit 132 to remove excess chlorine dioxide gas.

Next, the excess chlorine dioxide gas remaining in the first excess chlorine dioxide gas removal tower (131) is again converted to the second excess chlorine dioxide gas in the second excess chlorine dioxide gas remover (140) by the suction force of the suction pump (150). It flows into the removal tower 141, and at this time, the washing water is sprayed through the washing water spray nozzle unit 142 by the operation of the second washing water supply unit 145 to remove excess chlorine dioxide gas, and then the exhaust pipe 148 is discharged. It is very environmentally friendly as it discharges clean air into the atmosphere.

Meanwhile, Figure 7 is a diagram showing a double-type deodorization and excess chlorine dioxide gas removal system according to another embodiment of the present invention, and Figure 8 shows a stirring module in the double-type deodorization and excessive chlorine dioxide gas removal system of Figure 7. It is a front view, and Figure 9 is a vertical cross-sectional view showing the stirring module in the double-type deodorization and excess chlorine dioxide gas removal system of Figure 7, and Figure 10 is a double-type deodorization and excessive chlorine dioxide gas removal system of Figure 7. It is a rear view showing the stirring module, and Figure 11 is a diagram showing the auxiliary stirring drive motor and the bracket supporting the auxiliary stirring drive motor in the double-type deodorization and excess chlorine dioxide gas removal system of Figure 7. 12 is a plan view showing the stirring module in the double-type deodorization and excess chlorine dioxide gas removal system of FIG. 7, and FIG. 13 is an enlarged view of portion B of FIG. 9.

In the drawing, the same drawing numbers are assigned to the same configuration as the double-type deodorization and excess chlorine dioxide gas removal system 100 according to an embodiment of the present invention, and the description thereof is omitted.

As shown in Figure 7, the double-type deodorization and excess chlorine dioxide gas removal system 200 according to another embodiment of the present invention further includes a stirring module 300 for stirring (mixing) chlorine dioxide gas and odorous substances. It can be configured as follows.

As shown in Figures 8 to 13, the stirring module 3000 is mounted on the support 3002 of the base 3001 and is capable of mixing mixed gas (including chlorine dioxide gas and odor gas) therein. A space 3003a is formed, an inlet 3005 for injecting the mixed gas is formed on the upper side, and an outlet 3007 is formed at the lower part for discharging the first mixed mixed gas through the stirring process. Tank (3003); A rotary shaft 3011 installed vertically and rotatably within the space 3003a; A rotating frame (3012) formed integrally with the rotating shaft (3011) and having a plurality of stirring blades (3013) formed on the outer circumference; A rotation drive motor 3010 installed on the top of the stirring tank 3003 to rotate the rotation shaft 3011; A plurality of auxiliary stirring wings (3020, 3034) installed on the side of the stirring tank (3003) to stir and primary mix the mixed gas in the stirring tank (3003); A driving motor for auxiliary stirring (3015) that transmits power through a driving gear (3017) and a driven gear (3019) to rotate the axes (3018, 3016) of the auxiliary stirring blades (3020, 3034); An up-down movable plate 3009 installed on the upper side of the space 3003a to be movable up and down; An up-down cylinder (3008) installed on the upper part of the stirring tank (3003) to drive the up-down movable plate (3009); A detection tank (3004) formed in communication with the stirring tank (3003) to detect the mixed gas concentration in the stirring tank (3003); In order to selectively connect the stirring tank 3003 and the detection tank 3004 through the communication hole 3023, it is installed to be openable and closed on the side of the detection tank 3004, and is elastically supported by a spring 3033. Open/close valve (3025); A detection head 3031 for detecting the mixed gas concentration in the detection tank 3004; and a concentration detector 3030 connected to the detection head 3031; It can be configured by providing.

The unexplained symbol 3006 is a protective case covering the rotation drive motor 3010, 3014 is a support bracket supporting the auxiliary stirring drive motor 3015, and 3026 is a knob of the opening and closing valve 3025. am.

Support brackets 3021 and 3022 are installed at the lower part of the rotary shaft 3011 to stably support the rotation of the rotary shaft 3011.

A mesh network 3024 may be installed in the communication hole 3023. A drain cap 3029 may be installed on the bottom of the detection tank 3004 to discharge the mixed gas remaining in the detection tank 3004. The mixed gas is supplied to the chlorine dioxide gas deodorization reactor (120).

Looking at the operation of the stirring module 3000, the mixed gas is injected through the injection port 3005 and then the rotation frame 3012 of the rotation shaft 3011 is rotated using the power of the rotation drive motor 3010. A plurality of stirring blades 3013 stir and mix chlorine dioxide gas and odorous substances.

In addition, by using the power of the auxiliary stirring drive motor 3015 to rotate the shafts 3016 and 3018, the auxiliary stirring blades 3020 and 3034 rotate, thereby further increasing stirring efficiency.

During the stirring process, air bubbles generated in the space 3003a of the stirring tank 3003 are broken by the needle 3009a formed on the lower surface of the up-down movable plate 3009, which moves up and down by the up-down cylinder 3008.

In order to detect the mixed gas concentration in the stirring tank 3003, when the handle 3026 of the on-off valve 3025 is pulled, the elastic force of the spring 3033 is overcome and the on-off valve 3025 moves to the right, causing communication. As the hole 3023 is opened, the mixed gas in the stirring tank 3003 flows into the detection tank 3004. At this time, the detection head 3031 comes into contact with the mixed gas, and the concentration detector 3030 detects the mixed gas concentration. Let's do it. The mixed gas is supplied to the gas deodorization reactor 120 through the outlet 3007.

In this way, by operating the stirring module 3000, a mixed gas of an appropriate concentration is supplied to the chlorine dioxide gas deodorization reactor 120 and undergoes a deodorization reaction, thereby further increasing the deodorization reaction efficiency.

As described above, the present invention has the following effects.

First, when producing chlorine dioxide gas, the treated water can be discharged in a state that can be recycled as washing water without discharging strongly acidic wastewater. The cost of producing chlorine dioxide is reduced by reducing the amount of raw materials used to produce chlorine dioxide gas, and the minimum amount of raw materials is required. It can be used to produce the maximum amount of chlorine dioxide gas.

Second, by promoting the mixing reaction of chlorine dioxide gas, it is possible to effectively remove odor from odorous substances containing vapor, and at the same time, clean air can be discharged into the atmosphere after removing excessively supplied chlorine dioxide gas.

Third, by operating the stirring module, a mixed gas of an appropriate concentration is supplied and undergoes a deodorization reaction, thereby further increasing the deodorization reaction efficiency.

100: Double-type deodorization and excess chlorine dioxide gas removal system according to an embodiment of the present invention
110: Chlorine dioxide gas generator
111: Drug storage unit
112: Drug supply department
113: Pharmaceutical reaction tank
114: Control unit (PLC)
120: Chlorine dioxide gas deodorization reactor
121: Deodorization reaction tower
122: Deodorizing reaction fan
130: First excess chlorine dioxide gas remover
131: First excess chlorine dioxide gas removal tower
132: Washing water spray nozzle part
133, 134: Filter
135: First washing water supply unit
140: Second excess chlorine dioxide gas remover
141: Second chlorine dioxide gas removal tower
142: Washing water spray nozzle part
143, 144: Filter
145: Second washing water supply unit
146: Filling member
147: UV lamp
148: exhaust pipe
150: suction pump
161: Base plate
162: spring
200: Double-type deodorization and excess chlorine dioxide gas removal system according to another embodiment of the present invention
D1: first connection duct
D2: second connection duct
L: Mixed gas supply line
S1: first space part
S2: second space part

Claims (10)

A chlorine dioxide gas generator (110) that generates chlorine dioxide gas;
A chlorine dioxide gas deodorization reactor (120) for removing odorous gas (odorous substances) from waste liquid using the chlorine dioxide gas supplied from the chlorine dioxide gas generator (110);
A first excess chlorine dioxide gas remover (130) connected to the chlorine dioxide gas deodorization reactor (120) and primarily removing chlorine dioxide gas remaining after the deodorization reaction of the chlorine dioxide gas deodorization reactor (120);
a second excess chlorine dioxide gas remover (140) for re-removing excess chlorine dioxide gas that was not removed by the first excess chlorine dioxide gas remover (130) and then discharging clean air into the atmosphere; and
a suction pump (150) to suck the chlorine dioxide gas remaining in the first excess chlorine dioxide gas remover (130) into the second excess chlorine dioxide gas remover (140); Double type deodorization and excess chlorine dioxide gas removal system including. According to paragraph 1,
The chlorine dioxide gas generator 110,
a drug storage unit 111 that stores various drugs;
a drug supply unit 112 that supplies various drugs stored in the drug storage unit 111;
a drug reaction tank (113) that reacts the drug supplied by the drug supply unit (112) to generate chlorine dioxide gas; and
a control unit (PLC) 114 for controlling and monitoring chlorine dioxide gas production; A double-type deodorization and excess chlorine dioxide gas removal system equipped with a. According to paragraph 1,
The chlorine dioxide gas deodorization reactor 120,
A deodorizing reaction tower (121) connected to a mixed gas supply line (L) that supplies a mixed gas of chlorine dioxide gas and odorous gas (odorous substances); and
a deodorizing reaction fan (122) that stirs the mixed gas flowing into the deodorizing reaction tower (121) to cause a deodorizing reaction; A double-type deodorization and excess chlorine dioxide gas removal system equipped with a. According to paragraph 1,
The first excess chlorine dioxide gas remover 130,
A first excess chlorine dioxide gas removal tower (131) into which chlorine dioxide gas flows and forming a first space (S1) therein to remove excess chlorine dioxide gas;
a washing water spray nozzle unit 132 that sprays washing water into the first space S1 to remove excess chlorine dioxide gas;
Filters 133 and 134 for filtering foreign substances and moisture contained in the chlorine dioxide gas flowing from the chlorine dioxide gas deodorization reactor 120; and
a first washing water supply unit 135 for removing excess chlorine dioxide gas in the first space S1 by spraying washing water through the washing water spray nozzle unit 132; Double type deodorization and excess chlorine dioxide gas removal system including. According to paragraph 1,
The second excess chlorine dioxide gas remover 140,
a second chlorine dioxide gas removal tower (141) into which chlorine dioxide gas flows and forming a second space (S2) therein to remove excess chlorine dioxide gas;
a cleaning water spray nozzle unit 142 that sprays cleaning water into the second space S2 to remove excess chlorine dioxide gas;
Filters 143 and 144 for filtering foreign substances and moisture contained in the chlorine dioxide gas flowing from the first excess chlorine dioxide gas remover 130; and
a second washing water supply unit 145 for spraying washing water through the washing water spray nozzle unit 142 to remove excess chlorine dioxide gas in the second space S2; Double type deodorization and excess chlorine dioxide gas removal system including. According to clause 5,
A filling member 146 is installed in the second space S2, and the filling member 146 increases the contact area between chlorine dioxide gas and washing water to improve chlorine dioxide gas removal efficiency. Type deodorization and excess chlorine dioxide gas removal system. According to claim 5 or 6,
A double-type deodorization and excess chlorine dioxide gas removal system, characterized in that a UV lamp (147) is installed in the second space (S2). According to paragraph 1,
A first connection duct (D1) is installed at a location connecting the chlorine dioxide gas deodorization reactor 120 and the first excess chlorine dioxide gas remover 130, and the first excess chlorine dioxide gas remover 130 and the first excess chlorine dioxide gas remover 130 are installed. A second connection duct (D2) is installed at a location connecting the second excess chlorine dioxide gas remover (140),
A double-type deodorization and excess chlorine dioxide gas removal system, characterized in that a chlorine dioxide gas measuring unit (20) is installed in the second connection duct (D2). According to clause 8,
The suction pump 150 is installed in the second connection duct (D2), the suction pump 150 is mounted on the upper part of the base plate 161, and the base plate 161 has a plurality of springs 162. A double-type deodorization and excess chlorine dioxide gas removal system, characterized in that it is configured to absorb vibration and prevent vibration noise. According to paragraph 1,
A stirring module 300 is further installed in the mixed gas supply line (L) that supplies the mixed gas of chlorine dioxide gas and odorous gas (odorous substances) to uniformly mix (stir) the mixed gas,
The stirring module 3000,
It is mounted on the support 3002 of the base 3001, and a space 3003a capable of containing the mixed gas is formed inside, an inlet 3005 for injecting the mixed gas is formed on the upper side, and an inlet 3005 for injecting the mixed gas is formed on the lower side. A stirring tank (3003) in which an outlet (3007) is formed for discharging the stirred mixed gas;
A rotary shaft 3011 installed vertically and rotatably within the space 3003a;
A rotating frame 3012 formed integrally with the rotating shaft 3011 and having a plurality of stirring blades 3013 formed on the outer circumference;
A rotation drive motor 3010 installed on the top of the stirring tank 3003 to rotate the rotation shaft 3011;
A plurality of auxiliary stirring wings (3020, 3034) installed on the side of the stirring tank (3003) to stir the mixed gas in the stirring tank (3003);
A driving motor for auxiliary stirring (3015) that transmits power through a driving gear (3017) and a driven gear (3019) to rotate the axes (3018, 3016) of the auxiliary stirring blades (3020, 3034);
An up-down movable plate 3009 installed on the upper side of the space 3003a to be movable up and down;
An up-down cylinder (3008) installed on the upper part of the stirring tank (3003) to drive the up-down movable plate (3009);
A detection tank (3004) formed in communication with the stirring tank (3003) to detect the mixed gas concentration in the stirring tank (3003);
In order to selectively connect the stirring tank 3003 and the detection tank 3004 through the communication hole 3023, it is installed to be openable and closed on the side of the detection tank 3004, and is elastically supported by a spring 3033. Open/close valve (3025);
A detection head 3031 for detecting the mixed gas concentration in the detection tank 3004; and
A concentration detector 3030 connected to the detection head 3031; A double-type deodorization and excess chlorine dioxide gas removal system comprising a.