KR101306139B1 - Deodorization apparatus of exhust gas with high efficiency - Google Patents

Abstract

The present invention relates to an injector mixing unit which injects and mixes the odor transferring unit, the odor transferring unit and the odor and ozone generating unit ozone, a cyclone mixer and a deodorizing tank.
The deodorizing tank 10 forms an upper space 11 and a lower space 16 in the housing, and a part of the upper space 11 includes an eliminator 12 and a demister 18. And form a spray nozzle 141 and a spray pipe 14 below to connect the water circulation pump 3 to the water tank 17 from the outside, and to form the spray nozzle 141. The ceramic carrier 15 is formed under the water injection space, the ceramic carrier 15 is formed under the water tank 17, and the mixer 9 forms an upper connection pipe 91 which is horizontally expanded. Downwardly symmetrical to form a lower connecting tube 92, and vertically install a plurality of vertical mixing pipe 93 in the circumference to connect between the upper and lower connecting pipes (91, 92), the upper and lower connecting pipes ( 91 and 92 communicate with each other, and the inside of the mixing tube 93 blocks the 1/4 of the area from the top but the remaining 3/4 of the fan-shaped guide blades (931) of the predetermined size opening It provides a high concentration of odor gas deodorizing device is installed in the circulating space 932 alternately with a predetermined interval and the rotational direction to make the gas have a rotational force in the spiral direction.

Description

High concentration odor gas deodorizer {DEODORIZATION APPARATUS OF EXHUST GAS WITH HIGH EFFICIENCY}

The present invention relates to a high concentration odor gas deodorizer, in particular, in order to effectively remove the high concentration odor gas generated in the treatment plant, in particular, high concentration odor gas including hydrogen sulfide, ammonia, methyl mercaptan, methyl sulfide, trimethylamine, etc. The present invention relates to a high concentration of odor gas deodorizer which is oxidized, decomposed, and absorbed once more while being oxidized through a mixer and a cyclone mixer, and then discharged in a harmless state to a human body.

In general, high concentrations of odor-causing materials vary greatly depending on the source, and refineries, chemical plants, manure and livestock wastewater treatment plants, sewage treatment plants, and municipal waste landfills are known as major sources of odor in cities. In particular, various methods for generating odor through aversive facilities of environmental foundations such as sewage treatment plants, livestock and manure treatment plants are known.

Odor treatment methods are largely classified into physical, chemical, and biological treatment methods. Currently used methods include combustion, cleaning, oxidation, adsorption, and microbial treatment. Among these, the combustion method is a gas burner between 600 ° C and 800 ° C. It can be divided into direct combustion method that burns odor gas into carbon dioxide and water, and catalytic combustion method that burns and oxidizes in the range of 300 ℃ to 400 ℃ by installing catalyst grill such as platinum and cobalt, and removes almost all combustible odorous substances. Although it is efficient for the fuel cell, the maintenance cost for fuel or catalyst replacement is expensive, and if it is neglected in operation management, nitrogen oxide is generated and there is a risk of explosion.

The washing method is divided into a washing method and a chemical liquid washing method. The odor gas is washed with water, an acid or an aqueous alkali solution and deodorized using neutralization, oxidation and reduction.

This method has the advantages of relatively simple equipment and low operating cost, but it has a narrow application range, difficult treatment of complex odor, and measures to prevent corrosion of facilities by using chemical solution, and wastewater, which is a secondary pollution source, is generated. There is this.

Oxidation is a method of oxidizing and removing odorous components by utilizing ozone's powerful oxidizing effect. It is relatively efficient in removing large-capacity gas due to low power consumption and easy maintenance, but ozone alone has small application range and insufficient performance. In combination with other methods such as catalysts there is a disadvantage that can exhibit high performance.

Adsorption is a method that removes odors using activated carbon and is one of the most widely used methods. It is applied to various applications such as odor adsorption of various medicines and wastes in hospitals, chemical plants, livestock, manure and sewage treatment plants. . Activated carbon can remove odors even in the presence of water, and is particularly effective at removing low-odor odors. The higher the molecular weight, the greater the adsorption capacity. Compared with the deodorizing effect of the combustion method, the removal rate is reduced, but there is an advantage that the initial installation cost is low and the operation method is easy. On the other hand, when various odorous substances accumulate in the pores of activated carbon and are adsorbed in a saturated state, and there is no deodorizing effect anymore, the odor begins to flow out, and the adsorbed carbon must be replaced with new charcoal. There is a disadvantage in that the concentration of the pretreatment such as cooling and condensation is reduced in parallel, and then activated carbon adsorption is performed.

The microorganism treatment method is a method of decomposing odorous substances adsorbed using microorganisms when odor passes through wood chips or soil, and the process of dissolving and reacting odorous substances, absorbing by microorganisms, and converting them into odorless or low odorous substances. It consists of three steps: the process of doing so. This microbial treatment method takes up a lot of land area and has a good removal ability for many kinds of odors and does not generate secondary pollutants if the growth conditions of microorganisms involved in odor removal are properly formed. The disadvantage is the lack of ability.

1A is a schematic diagram showing a odor removal method by a conventional ozone (O ₃ ) oxidation method. Conventional ozone (O ₃ ) oxidation method introduces odor into the blower to mix and contact ozone (O ₃ ) generated from the ozone generator and odor in the ozone contact chamber to deodorize the odor and excess ozone (O ₃ ) is adsorbed on the activated carbon To exhaust harmless air.

However, a small molecule, such as a conventional ozone oxidation method of according to the said method the odor components and the reaction with the large molecule fast material is ozone (O ₃₎ to the process can be one of ammonia, methane, disulfide Hydrogen alone is ozone (O ₃₎ There was a problem that was difficult to process.

Figure 1b is a odor removal system using ozone (O ₃ ) and ozone water (O 3 + H 2 O) of Patent No. 10-0886465,

(a) injecting and mixing a dissolved solution (H 2 O + O 3) and a malodorous gas in which cooling water (H 2 O) and ozone (O ₃ ) are mixed into the sealed storage container; (b) discharging the gas from which the malodor is first removed by mixing the dissolved solution (H2O + O3) and the malodorous gas and the wastewater of the dissolved solution (H2O + O3) and the malodorous gas out of the storage container, respectively; Steps; (c) mixing the gas discharged from the storage container with ozone (O ₃ ) to remove odor in a secondary manner; (d) removing ozone (O ₃ ) by introducing the gas discharged in step (c); After the discharge; And (e) purifying the wastewater discharged in step (b) using ozone (O ₃ ). The odor removing method may be filled with one of a solid material including a fluororesin or a polymer material, a glass material, a plastic material, gravel inside the storage container, and dissolved through the upper end of the storage container. Injecting a solution, injecting the malodorous gas through the lower end of the storage container and mixed with the dissolved solution, and discharges the odor-free gas primarily through the upper end of the storage container, through the lower end of the storage container It is to discharge the waste water mixed with the dissolved solution (H 2 O + O 3) and odor gas.

However, in the conventional ozone oxidation method, odorous substances with large molecules and fast reacting substances can be treated with ozone (O ₃ ), but small molecules such as ammonia, methane and hydrogen disulfide are difficult to treat with ozone (O ₃ ) alone. In particular, in order to remove odor only, the odor removal function is inferior by mixing a solid substance and a solution containing fluororesin or polymer material, glass material, plastic material and gravel with odor gas. . Therefore, a high concentration of odor gas deodorizer has been required.

The present invention has been made in order to solve the problems of the prior art, the purpose of which is a high concentration of odor generated in sewage or sewage and wastewater treatment plants, manure and livestock wastewater treatment plants, landfills, fertilizer plants, ozone (O ₃ ), hydrogen peroxide (H ₂ O ₂ ) To provide a high concentration odor gas deodorizing device for purifying by using water, the odor gas mixed with high concentration ozone passes through a porous ceramic carrier layer and oxidizes and decomposes hydrogen peroxide water to odor. It is an object of the present invention to provide a high concentration odor gas deodorizing device having a cyclone-type mixing structure for reacting odor gas and mixed gas mixed with ozone in deodorizing odor.

High concentration odor gas deodorizing apparatus of the present invention for achieving the above object is a power supply unit, water supply unit, circulation pumping unit, H ₂ O ₂ supply unit, odor transfer unit, ozone generating unit, odor transfer unit odor and ozone In the deodorizing apparatus consisting of an injector mixing unit for injecting ozone of the generating unit, the cyclone mixer, deodorization tank, the deodorization tank comprises an upper space and a lower space in the housing, a part of the upper space is an eliminator ), And a demister is laminated and formed, and a spray nozzle and a spray pipe are formed below, connected to the water circulation pump between the tank and the water from the outside, and below the water spray space of the spray nozzle. Form a ceramic carrier, and the lower part of the ceramic carrier forms a water tank, which forms a horizontal space that is horizontally expanded, but forms a lower space by symmetrically downward. Several vertical mixing pipes are installed vertically in the circumference to connect the upper and lower connecting pipes, and the inside of the mixing pipe is a circulating space, which blocks 1/4 of the area from the top and opens the remaining 3/4 of the opening. The fan-shaped guide blades of a predetermined size are alternately installed at different intervals at predetermined intervals, and are alternately installed to achieve a high concentration of odor gas deodorizing device for rotating the gas in a spiral direction.

The present invention primarily mixes odorous gases such as hydrogen sulfide, ammonia, methyl mercaptan, metal sulfide, and trimethylamine with high concentration ozone through an injection mixer, and secondly passes through a water film-type porous ceramic carrier layer and hydrogen peroxide water. It is to provide a high concentration odor gas deodorizing device that is sprayed by oxidation reaction.

Figure 1a, 1b is a view showing a method and apparatus for removing the odor of the conventional waste water treatment plant,
2 is a schematic view showing the whole of the present invention deodorizer,
Figure 3 is an extract showing a cyclone mixer and deodorization tank of the present invention deodorizer,
Figure 4a is a schematic plan view of the deodorizing device of the present invention showing the installation structure of the injection pipe in the deodorization tank,
Figure 4b is a cross-sectional view of the cyclone mixer of the present invention deodorizer,
5 shows a cyclone tube of the cyclone mixer of the present invention deodorizer,
6a to 6e are views for explaining the gas flow guide process of the cyclone tube of the cyclone mixer of the present invention deodorizer,
Figure 7 is an enlarged view of the main part of the injector for supplying the odor gas and the high concentration ozone of the high concentration deodorizing device of the present invention.

Hereinafter, the deodorizing device of the present invention together with the accompanying drawings will be described in detail.

2 is a schematic view showing the whole of the present invention deodorizing apparatus, Figure 3 is an extract showing the cyclone mixer and the deodorizing tank of the present invention deodorizing device.

Ceramic deodorizer and deodorizer using the present invention according to the drawings are largely the power supply unit 1, the water supply unit 2, the circulation pumping unit 3, H ₂ O ₂ supply unit 4, odor inflow Part 5, malodorous conveying part 6, ozone generating part 7, injector mixing part 8 for injecting and mixing the malodor of malodorous conveying part 6 and ozone of ozone generating part 7, It consists of a cyclone mixer 9 and a deodorization tank 10.

The power supply unit 1 is also referred to as an on-site control panel and includes a power supply and various known control means for controlling normal operation of a high concentration deodorizer such as starting and stopping a fan, adjusting a temperature, and starting and stopping a water supply device. Detailed description thereof will be omitted.

The water supply unit 2 constitutes a water supply system known to maintain a constant water level in order to maintain the optimum operating conditions of the injection mixer and the water film type ceramic deodorizer. The injection mixer is shown in FIG.

As the injector mixing section 8 composed of a multi-injection injector, the inlet port P1 side is formed to be shorter than the outlet port P2 side, and the inhaled gas is discharged, indicating an injector having a strong injection force. The configuration of such an injector is as described in already known Patent No. 10-0363199. Approximately, the mixed gas of the nozzle P ₃ and the high concentration ozone are negative pressure in the injector due to the gas flow from the short inlet P1 side of the injector mixing section 8 to the long outlet port P2 side of the injector mixing section 8. To the nozzle by the Bernoulli theorem that the flow velocity of the fluid flowing along the flow path of the nozzle is rapidly increased and the flow velocity is maximized at the moment passing through the nozzle, while the pressure of the fluid is inversely proportional to the flow velocity. As the pressure of the fluid passing through the part is minimized), as the mixed gas is pulverized into fine bubbles, the contact efficiency between the discharge gas on the discharge side and the hydrogen peroxide in the carrier is maximized, and the chemical reaction of hydrogen peroxide by ozone occurs.

The circulation pump 3 is composed of a water supply pump and a transfer pipe line, and preferably a volute acid pump is adopted, and automatic and interlocking operation by a timer is possible, and a three-phase winding type induction motor type motor. It is preferable that the pump is installed in the upper portion, the pump is installed in the coaxial lower portion. Specific pump specifications (casing, bearing structure, shaft structure, impeller, thrust, bearing housing, shaft, sleeve, etc.) are omitted.

The H ₂ O ₂ supply part 4 forms several pumps (not shown) and an H ₂ O ₂ liquid pumping line (not shown). The H ₂ O ₂ supply part 4 is controlled with sufficient pressure through several pumps and pumping lines by mixing H ₂ O ₂ liquid with water (H ₂ O) and supplied into the water tank 17 to be mixed with the water. While storing the H ₂ O ₂ liquid, it is ejected as an injection nozzle 141 on the ceramic carrier 15 through the injection pipe 14 through the circulation pump 3.
Odor inlet 5 is an inlet through which odor generated from various odor generating units is introduced.

The odor gas transport unit 6 is composed of a pipeline, but is sucked through one pipeline to suck the odor gas generated from the wastewater storage tank with a plurality of turbo fans, but is driven as a suction fan 81, a motor, And symbols are omitted) to be respectively sucked in the branch pipes having independent suction structures respectively formed on both sides.
The inhaled malodorous gas is transferred to one pipeline again, and is supplied from the ozone generating unit 7 connected to both sides by the inhalation pressure of the malodorous gas conveyed as the injector-type mixer in the injector mixing unit 8 described above. Ozone is strongly inhaled (based on Bernoulli's principle).

The strongly inhaled ozone and odor gas mixture gas is injected into the upper connecting pipe 91 of the cyclone mixer 9 and is supplied to the deodorization tank 10.

Deodorizing tank 10,

The upper space 11 and the lower space 16 are formed in the housing (not shown), and the upper space 11 directly below the exhaust port 18 has an eliminator 12 and a demister. (13) is laminated and formed, and the injection pipe 14 having the injection nozzle 141 is formed below, and is connected to the water circulation pumping part 3 between the water tank 17 from the outside and the injection The ceramic carrier 15 is formed below the water injection space of the nozzle 141, but the lower side of the ceramic carrier 15 forms a water tank 17.

In particular, the mixed gas of ozone and odor supplied from the injector mixing unit 8 flows into the lower space 16 formed below the ceramic carrier 15 and the water tank 17 through the cyclone mixer 9. To form.

In the accompanying drawings, Figure 4a is a schematic plan view of the deodorizing device of the present invention showing the installation structure of the injection pipe in the deodorization tank, Figure 4b is a cross-sectional view of the cyclone mixer of the deodorizing device of the present invention, Figure 5 is a cyclone of the deodorizing device of the present invention 6A to 6E are diagrams illustrating the gas flow guide process of the cyclone tube of the cyclone mixer of the present invention, and FIG. 7 is the odor gas of the high concentration deodorizer of the present invention. This is an enlarged view of the main part of the injector that supplies inflow and high concentration ozone.

Cyclone mixer 9 of the present invention deodorizing apparatus according to the drawings is a cylindrical deodorization tank 10 is located in the center, the communication in the lower space 16, the ozone and odor gas is mixed while the high pressure gas It is supplied as odor gas in the state.

The principle of the cyclone mixer (9) to be supplied to the deodorizing tank (10) by a high-pressure gas to form the upper connector (91) in the horizontal state is horizontally expanded to form a lower connector 92 in a symmetrical downward direction In addition, a plurality of vertical mixing tubes 93 are vertically installed in the circumference to connect the upper and lower connecting tubes 91 and 92 so that the upper and lower connecting tubes 91 and 92 communicate with each other.
Inside the mixing tube (93) forms a circulating space (932), but the fan-shaped guide vanes (931) having an area size of 1/4 are alternately installed in positions.

That is, the first guide vane 931 is located at the top of the cylinder's return space 932, but is located in the size of the cylinder 1/4 in the cross section (see Fig. 6a), the next guide vane 931 is the return space ( 932 is installed in the second position (see FIG. 6B) at a predetermined interval, and is installed in the next quarter position in the rotational direction from the quarter-sized guide vanes 931, and the next guide vanes 931. ) Are also placed at the same quarter in the next 1/4 position in the rotational direction with the same spacing, and are sequentially positioned as shown in the drawings of FIGS. 6C, 6D, and 6E. In order to block the return space 932 to a size of 1/4, the remaining 3/4 is opened to allow gas to pass, and thus the cyclone-type rotational force of the gas is transferred downward with a rotational force in one direction. At this time, the installation shape or angle of the guide blade 931 is appropriately formed in accordance with the specifications in the direction of increasing the flow of gas.

The mixed gas supplied below the deodorization tank 10 is supplied from the upper portion of the water tank 17 of the lower space 16 in the deodorization tank 10 to perform a predetermined action.

Specifically, a liquid mixture of the water tank is mixed with H ₂ O ₂ solution is sprayed O ₂ solution H ₂ in the deodorizing vessel 10 through the injection nozzle 141 of the injection pipe 14 through a circulation pump unit (3) .

The gas pressurized through the cyclone mixer 9 while mixing the malodor and the ozone from the ozone generating unit 7 and the ozone from the injector mixing unit 8 at the same time. The water rises to the impregnated ceramic carrier 15 layer, and at the same time, the injected H ₂ O ₂ liquid flows downward through the ceramic carrier 15 to react with the injected H ₂ O ₂ liquid to form a water-soluble liquid odor component (H ₂ S and NH ₄ ) are deodorized and reacted with oxygen and OH ⁻ . Subsequently, after the reaction, the gas is exhausted through an eliminator (12) and a demister (13), and the demister (13, a kind of scrubber layer) and the eliminator (12, multi-tube assembly) The liquid is separated through a lattice structure so that the gas degassed and deodorized is passed) and then exhausted to the exhaust port 18.

The injector mixing unit 8 represents an injector having a strong injection force as the inlet gas P1 is shorter than the outlet P2 side as shown in FIG. The configuration of such an injector is as described in already known Patent No. 10-0363199. Approximately, the mixed gas of the nozzle P ₃ and the high concentration ozone are negative pressure in the injector due to the gas flow from the short inlet P1 side of the injector mixing section 8 to the long outlet port P2 side of the injector mixing section 8. To the nozzle by the Bernoulli theorem that the flow velocity of the fluid flowing along the flow path of the nozzle is rapidly increased and the flow velocity is maximized at the moment passing through the nozzle, while the pressure of the fluid is inversely proportional to the flow velocity. As the pressure of the fluid passing through the part is minimized), as the mixed gas is pulverized into fine bubbles, the contact efficiency between the discharge gas on the discharge side and the hydrogen peroxide in the carrier is maximized, and the chemical reaction of hydrogen peroxide by ozone occurs.

That is, as is known, the odor mixed with ozone is evenly transmitted to the entire surface of the water film-type porous ceramic carrier 15 through the cyclone mixer 9, and the odor-causing substance is AOP (Advanced Oxygen Process) method using strong oxidizing power. (The main component that generates AOP phenomenon is to use high concentration of ozone and special oxidant in parallel), and the deodorized air passes through the eliminator (12) and the demister (13) and finally the atmosphere Exhaust to the middle.

1: power supply, 2: water supply, 3: circulation pump, 4: H ₂ O ₂ supply, 5; odor inlet,
6: odor feed unit, 7: ozone generating unit, 8: injector mixing unit, 9: cyclone mixer,
10: deodorization tank, 11: upper space, 12: ELIMINATOR,
13: DEMISTER, 14: injection pipe, 141: injection nozzle, 15: ceramic carrier,
16: lower space, 17: tank, 18: exhaust, 91: upper connector, 92: lower connector,
93: mixing tube, 931: guide wings, 932: the return space,

Claims (1)

Power supply unit 1, water supply unit 2, circulation pumping unit 3, H ₂ O ₂ supply unit 4, odor inlet unit 5, odor transfer unit 6, ozone generating unit (7), an injector mixing unit (8) for mixing the odor of the odor transferring unit (6) and ozone of the ozone generating unit (7), a cyclone mixer (9), and a deodorizing tank (10). In
The deodorizing tank 10 constitutes an upper space 11 and a lower space 16 in the housing, and a part of the upper space 11 includes an eliminator 12 and a demister 18. ) Is laminated and formed, and the injection nozzle 141 and the injection pipe 14 are formed below and connected to the water circulation pump 3 between the water tank 17 from the outside and the injection nozzle 141. The lower portion of the ceramic carrier (15), and the lower portion of the ceramic carrier (15) forms a water tank (17), horizontally extending the upper connector (91), but downwardly symmetrical lower connector ( 92, and the upper and lower connecting pipes 91 and 92 are vertically connected to the upper and lower connecting pipes 91 and 92 by circumferentially vertical mixing pipes 93, and the upper and lower connecting pipes 91 and 92 communicate with each other. The inside of the mixing tube 93 constitutes a flow space 932, but blocks the 1/4 of the area from the top but the remaining 3/4 of the fan-shaped guide vanes 931 of a predetermined size are spaced at a predetermined interval. High concentration odor gas deodorizing device, characterized in that the gas is rotated in alternating positions and intervals to have a rotational force in the spiral direction.

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