JP5807233B2 - Deodorizing device - Google Patents

Description

  The present invention mainly relates to a deodorizing apparatus that separates and deodorizes odor components contained in odor gas discharged from a printing factory or painting factory.

  The gas exhausted from the printing factory or painting factory contains odor components such as toluene. Since the odor component deteriorates the surrounding environment and causes various harmful effects, it is required to deodorize and discharge. Odor gas can be separated by adsorbing odor components to an adsorbent such as activated carbon. In the apparatus for adsorbing the odor component to the adsorbent, the capacity of the tank is specified by the flow rate and concentration of the odor gas. The tank needs to have a large horizontal cross-sectional area in an area that is orthogonal to the passage direction of the odor gas in proportion to the flow rate of the odor gas, for example, a tank that allows the passage of the odor gas in the vertical direction. Further, to the extent that odor components are separated, in other words, it is necessary to increase the tank as the concentration of odor components contained in the odor gas discharged from the tank is lowered. For example, since the flow rate of odorous gas discharged from a printing factory is extremely large at several hundred cubic meters per minute, the tank filled with the adsorbent becomes extremely large, the equipment cost increases, and this is also economical. The odor gas cannot be deodorized by this method.

  Furthermore, a method of burning odorous components by heating odorous gas to a high temperature with a gas burner has been developed, but this method has a disadvantage that it consumes a lot of fuel and increases the running cost. As an apparatus for solving such drawbacks, an apparatus for separating an odor component by bringing an odor gas into contact with a fine mist has been developed. (See Patent Documents 1 and 2)

  The air cleaner of Patent Document 1 includes a water vapor generating unit that generates water vapor using an ultrasonic vibrator or the like. The water vapor generated in the water vapor generating part is brought into contact with air to be a mixed gas with air. The mixed gas is sent to the electrostatic recovery unit and charged, and pollutants contained in the air are collected in the form of droplets and collected by the negative electrode. Patent Document 2 describes a gas-liquid contact method and apparatus. This apparatus includes an ultrasonic droplet spray nozzle that sprays droplets in an air stream. An electrode charged at a high voltage with respect to the ultrasonic droplet spray nozzle is provided in the ionization duct. The gas and droplet are separated by the electrode of the ionization duct.

JP-A-11-90262 JP 51-104476 A

  The devices described in the above patent documents atomize a liquid such as water by ultrasonic vibration, bring a gas into contact with the atomized mist, and separate components contained in the gas with a high-voltage electrode. This device can absorb odor components contained in air by mist and separate them. However, the apparatus having this structure has a drawback that it is difficult to efficiently absorb and recover all odor components in the mist.

  The present invention has been developed for the purpose of solving the disadvantages of the conventional apparatus. An important object of the present invention is to provide a deodorization apparatus that can efficiently and quickly absorb odor components contained in odor gas into mist and efficiently deodorize them.

Means for Solving the Problems and Effects of the Invention

The deodorizing apparatus according to claims 1 and 2 of the present invention has the following configuration in order to achieve the above-described object. The deodorizing apparatus includes deodorizing tanks 1, 21, 31, and 41 to which odor gas is supplied, and an atomizing apparatus 2 that supplies water containing a surfactant to the deodorizing tanks 1, 21, 31, and 41 by atomizing the water into a mist. 22, 32, 42, and recovery devices 3, 43 for separating mist from the exhaust gas discharged from the deodorizing tanks 1, 21, 31, 41. The deodorizing device causes the odor gas supplied to the deodorizing tanks 1, 21, 31, 41 to be adsorbed to the mist, thereby reducing the concentration of the odor component.

  The above deodorizing apparatus has a feature that the odor component contained in the odor gas can be efficiently and promptly absorbed into the mist and efficiently deodorized. In particular, the deodorizing apparatus of the present invention is characterized in that since a surfactant is added to water, an odor component composed of a non-hydrophilic solvent such as toluene can be efficiently separated and deodorized.

In the deodorizing apparatus according to claim 1 of the present invention, the atomizing device 22 has an ultrasonic vibrator 26 for atomizing water containing a surfactant into mist by ultrasonic vibration, and high frequency power to the ultrasonic vibrator 26. It is an ultrasonic atomizer provided with the alternating current power supply 27 to supply. Further, the deodorizing tank 21 fixes a plurality of ultrasonic transducers 26 arranged in the direction from the odor gas inlet 21A to the outlet 21B. The ultrasonic vibrator 26 fixed to the bottom of the deodorizing tank 21 radiates ultrasonic vibration upward, and ultrasonically vibrates water containing a surfactant to atomize from the liquid surface to mist, and is atomized. The mist contacts the odor gas supplied to the deodorization tank 21 and adsorbs the odor component contained in the odor gas. Moreover, the deodorizing apparatus of Claim 2 of this invention makes the atomizer 42 the electrostatic atomizer which electrostatically sprays the water containing surfactant.

  The above deodorization apparatus has the feature that by making the mist fine particles, the gas-liquid interface between the mist and the odor component can be made ideal, and the odor component can be adsorbed to the mist very efficiently and quickly. This is because the contact area between the exhaust gas and the water containing the surfactant can be remarkably increased by making the mist fine particles. Therefore, the deodorizing apparatus has a feature that it can quickly deodorize odor components contained in the odor gas and efficiently deodorize them.

Deodorizing device of the present invention, atomizer 42 is provided with a nozzle 47 for electrostatically spraying water containing a surface active agent, collecting device 43 comprises a cyclone 70, further, a potential difference on the nozzle 47 and the cyclone 70 And a power supply 49 provided with the mist, and the mist sprayed electrostatically from the nozzle 47 adheres to the inner surface of the cyclone 70 and is collected.
The deodorizing apparatus described above is a mist that absorbs the odor component while adsorbing the odor component to the mist quickly and efficiently by increasing the contact area between the water containing the surfactant and the odor gas with fine particles as the mist. The feature that can be recovered efficiently is also realized. This deodorization device absorbs odor components quickly, and efficiently recovers mist that has absorbed odor components, thereby effectively deodorizing odor gas and reducing the concentration of odor components contained in odor gas. There is a feature that can be significantly reduced.

  The deodorizing apparatus of the present invention can use odor gas as an organic solvent.

In the deodorization apparatus of the present invention, the recovery devices 3 and 43 include a cooling duct 60 that cools the exhaust gas, and the mist can be recovered from the odor gas by cooling with the cooling duct 60.
Since the above deodorizing apparatus cools the exhaust gas and collects the mist, the deodorizing apparatus has a feature that the fine mist vaporized by adsorbing the odor component can be liquefied and efficiently recovered.

In the deodorizing apparatus of the present invention, the recovery devices 3 and 43 include cyclones 50 and 70, and the cyclones 50 and 70 separate mist from the exhaust gas.
This deodorizing apparatus can efficiently recover the mist absorbing the odor component with the cyclone.

The deodorizing apparatus of the present invention connects the deodorizing tanks 1, 21, 31, 41 and the recovery apparatuses 3, 43 in multiple stages, and mists water containing a surfactant in each of the deodorizing tanks 1, 21, 31, 41. The odor gas can be adsorbed to the mist and recovered.
Since this deodorizing apparatus is connected in multiple stages to separate odor components, it has a feature that the concentration of odor components contained in odor gas can be remarkably reduced.

It is a schematic block diagram of the deodorizing apparatus concerning the 1st Example of this invention. It is an expanded sectional view which shows the electrostatic spraying apparatus of the deodorizing apparatus shown in FIG. It is a schematic block diagram of the deodorizing apparatus concerning the 2nd Example of this invention. It is a schematic block diagram of the deodorizing apparatus concerning the 4th Example of this invention. It is a horizontal sectional view of a deodorizing tank deodorization apparatus shown in FIG.

  Embodiments of the present invention will be described below with reference to the drawings. However, the example shown below illustrates the deodorizing apparatus for embodying the technical idea of the present invention, and the present invention does not specify the deodorizing apparatus as follows.

  Further, in this specification, in order to facilitate understanding of the scope of claims, numbers corresponding to the members shown in the examples are indicated in the “claims” and “means for solving problems” sections. It is added to the members. However, the members shown in the claims are not limited to the members in the embodiments.

  The deodorizing apparatus of the present invention separates the odor component contained in the odor gas and reduces the concentration of the odor component in the odor gas. This deodorization apparatus decomposes, for example, a gas containing an odor component which is a volatile organic compound (VOC) as the odor gas. For example, the deodorization apparatus can separate the odor component composed of a non-hydrophilic solvent such as toluene, xylene, ethyl acetate, etc. as a volatile organic compound (VOC), and can reduce the concentration of the odor component in the odor gas. However, the deodorizing apparatus can also reduce the odor component concentration by separating odor components other than the volatile organic compound (VOC).

The deodorization apparatus shown in FIGS . 1 to 3 is a deodorization tank 1, 2, 31 to which odor gas is supplied, and a mist that supplies water containing a surfactant to the deodorization tanks 1, 21, 31 by atomizing it into mist. , 2, and 32, and a recovery device 3 that separates mist from exhaust gas discharged from the deodorization tanks 1, 21, and 31. These deodorization devices adsorb odor gas supplied to the deodorization tanks 1, 21, 31 to a mist obtained by atomizing water containing a surfactant, recover the mist, and odor components contained in the odor gas. To reduce the concentration of odor components.

  The atomizing device 2 of the deodorizing apparatus shown in FIG. 1 is an electrostatic spraying device 15 that sprays water containing a surfactant on the mist of fine particles inside the deodorizing tank 1. As shown in FIG. 2, the electrostatic spraying device 15 includes a pressure pump 16 that pressurizes water containing a surfactant and supplies the water to the nozzle 17, and a pressurized surface activity supplied from the pressure pump 16. A nozzle 17 that sprays water containing an agent on fine particles by the action of static electricity to atomize it into a mist, an electrode 18 for electrostatic spraying that applies a high voltage to the nozzle 17, and this electrode 18 And a high-voltage power source 19 for applying a high voltage between the nozzle 17 and the nozzle 17. The pressurizing pump 16 is connected to a storage tank 4 that stores water containing a surfactant, and continuously supplies water containing the surfactant to the nozzle 17. The electrostatic atomizer 2 shown in the figure includes a plurality of nozzles 17, and these nozzles 17 are fixed downward on the top plate of the deodorization tank 1. Each nozzle 17 sprays water containing a surfactant supplied under pressure from a pressure pump 16 into the deodorizing tank 1. The electrostatic spraying device 15 sprays the mist sprayed from the nozzle 17 as fine particles onto the deodorizing tank 1 with the electrostatic voltage of the high-voltage power supply 19. The mist sprayed on the deodorizing tank 1 contacts the odor gas and adsorbs the odor component.

  The atomizing device 22 of the deodorizing apparatus shown in FIG. 3 is an ultrasonic atomizing device 25 that sprays water containing a surfactant in the deodorizing tank 21 as a mist of fine particles onto the deodorizing tank 21. The ultrasonic atomizer 25 includes an ultrasonic vibrator 26 that atomizes water containing a surfactant into a fine mist by ultrasonic vibration, and an AC power supply 27 that supplies high-frequency power to the ultrasonic vibrator 26. Prepare. 3 stores water containing a surfactant in a deodorizing tank 21, and a plurality of ultrasonic transducers 26 are fixed to the bottom surface of the deodorizing tank 21. The deodorization tank 21 is connected to a storage tank 4 that stores water containing a surfactant via a supply pump 29, and water containing the surfactant is supplied. The ultrasonic vibrator 26 fixed to the bottom surface of the deodorizing tank 21 radiates ultrasonic vibration upward, and ultrasonically vibrates water containing a surfactant to atomize from the liquid surface to mist. The atomized mist contacts the odor gas supplied to the deodorization tank 21, and adsorbs and separates the odor component contained in the odor gas.

  The mist sprayed on the deodorization tanks 1, 21, 31 and adsorbing the odor components contained in the odor gas is discharged from the deodorization tanks 1, 21, 31 together with the odor gas. The exhaust gas discharged from the deodorization tanks 1, 21, 31 is supplied to the recovery device 3, and the mist adsorbing the odor component is recovered.

The collection device 3 separates and collects mist from the exhaust gas discharged from the deodorization tanks 1, 21, 31. The deodorizing apparatus shown in FIGS. 1 and 3 includes a two-stage recovery device 3 including a first recovery device 3A and a second recovery device 3B. The first recovery device 3A and the second recovery device 3B are connected in series and connected to the discharge side of the deodorization tanks 1, 21, 31.

  In the deodorizing apparatus shown in the figure, the first recovery device 3 </ b> A is a cyclone 50. The cyclone 50 that is the recovery device 3 is connected to the discharge side of the deodorization tanks 1, 21, 31, and separates mist that has adsorbed odor components from the exhaust gas discharged from the deodorization tanks 1, 21, 31. The cyclone 50 has a cylindrical shape and has an exhaust port 53 for discharging exhaust gas at the center of the top plate 52. A lower portion of the cylinder 51 is a tapered portion 54 that narrows downward. The lower end of the taper portion 54 opens a discharge port 55 for discharging mist separated from the exhaust gas. The cyclone 50 agglomerates and separates the mist adsorbing the odor component while rotating the exhaust gas discharged from the deodorization tanks 1, 21, 31 in a horizontal plane. The mist separated from the exhaust gas is collected at the center of the lower end and discharged from the discharge port 55. The exhaust gas from which the mist has been separated is exhausted from the exhaust port 53 of the top plate 52. The cyclone 50 having this structure can efficiently separate mist from the exhaust gas.

  Furthermore, the deodorizing apparatus shown in the figure uses the second recovery device 3B as a cooling duct 60. The cooling duct 60 that is the recovery device 3 is connected to the discharge side of the cyclone 50 that is the first recovery device 3A, and separates and recovers the remaining mist from the exhaust gas discharged from the cyclone 50. The cooling duct 60 includes a cooling heat exchanger 61 that cools and aggregates the mist. The cooling heat exchanger 61 has fins (not shown) fixed to the heat exchange pipe 62. The cooling heat exchanger 61 is cooled by circulating cooling refrigerant and cooling water through the heat exchange pipe 62. A part of the mist remaining in the exhaust gas is vaporized and contained in the exhaust gas. When the exhaust gas is cooled by the cooling heat exchanger 61, the vaporized fine mist is condensed and condensed to be efficiently recovered. The mist that flows into the cooling duct 60 together with the exhaust gas collides with the cooling heat exchanger 61, collides with each other, and largely agglomerates, or collides with fins of the cooling heat exchanger 61 and greatly agglomerates. And collected as a solution. The exhaust gas from which the mist has been separated by the cooling heat exchanger 61 is discharged after the concentration of the odor component is lowered.

  The deodorizing apparatus described above includes a two-stage recovery device 3 including a cyclone 50 and a cooling duct 60. The exhaust gas from which the mist has been recovered by the cyclone 50 is cooled by the cooling duct 60 to collect and collect the mist. Yes. In this way, the structure in which the mist in the exhaust gas is recovered by the two-stage recovery device 3 can separate the odor components in the exhaust gas by each recovery device 3, so that the two-stage recovery device 3 is allowed to pass through. The feature is that the concentration of odorous components contained in the exhaust gas can be reduced more effectively. However, the deodorization device does not necessarily have to connect the recovery device in two stages, and the mist contained in the exhaust gas can be aggregated and recovered by a single recovery device. The mist contained in the exhaust gas can be aggregated and recovered.

  Further, the above deodorization apparatus includes a cyclone 50 and a cooling duct 60 as the recovery apparatus 3. The recovery apparatus includes a punching plate, a demister, a chevron, a bag filter, a capillary or a honeycomb, a scrubber, a spray tower, a static tower. Any other structure that can separate and recover the mist from the exhaust gas, such as an electricity recovery machine, can be used. Furthermore, the deodorizing apparatus of this invention can use the above collection | recovery apparatus independently, or can also connect multiple in multiple stages. In particular, the structure that separates mist by combining different types of recovery devices can separate and recover odor components more efficiently by selecting the optimal recovery device according to the concentration and characteristics of the odor components to be recovered. . Further, it is not always necessary to use different types of recovery devices connected in multiple stages, and the same type of recovery devices can be connected in multiple stages.

Further, in the deodorizing apparatus shown in FIG. 4 , the atomizing device 42 includes a nozzle 47 that electrostatically sprays water containing a surfactant, the recovery device 43 includes a cyclone 70, and the nozzle 47 and the cyclone 70. And a power supply 49 for providing a potential difference. This deodorizing apparatus uses the atomizing device 42 as an electrostatic spraying device 45, and electrostatically sprays water containing a surfactant to atomize it into fine particles, and also deodorizes a tank containing water containing the surfactant. 41 is used together with the recovery device 43 as a cyclone 70. Furthermore, this deodorizing device collects and collects the mist electrostatically sprayed from the nozzle 47 of the electrostatic spraying device 45 by the action of static electricity on the inner surface of the cyclone 70 which is the recovery device 43.

  The electrostatic spraying device 45 which is the atomizing device 42 pressurizes water containing a surfactant with a pressurizing pump 46 and supplies it to the nozzle 47, and at the same time applies a high voltage to the spraying electrode 48 and the nozzle 47 with a power source 49. And water containing a surfactant is sprayed as fine particles from the nozzle 47 by the action of static electricity. Furthermore, the cyclone 70 which is the deodorizing tank 41 to which water containing a surfactant is sprayed is connected to the power source 49 so that the inner surface serves as the mist adsorbing portion 76. The cyclone 70 is applied to the same polarity as the electrode 48 for spraying. The collection device 43 efficiently collects the mist charged and sprayed by the nozzle 47 of the electrostatic atomizer 45 by the electrostatic force on the inner surface of the cyclone 70. The illustrated cyclone 70 is insulated on the outside by an insulating material 77.

The cyclone 70 shown in the figure has a lower part of a cylinder 71 as a tapered part 74 that narrows downward, and a lower end of the tapered part 74 serves as a discharge port 75 for discharging mist adsorbing odor components, and a top plate 72. An exhaust port 73 for exhausting exhaust gas is opened at the center of. The cyclone 70 is connected to the power source 49 with the lower portion of the cylinder 71 serving as a mist adsorbing portion 76 and applied to the same polarity as the electrode 48 for spraying. As shown in FIG. 5 , the deodorization tank cyclone 70 rotates the odor gas supplied from the supply pipe 78 into a horizontal plane and applies the surfactant from the nozzle 47 of the electrostatic spraying device 45 toward the odor gas. The water it contains is atomized into mist and sprayed. The atomizing device 42 in FIG. 5 fixes a plurality of nozzles 47 at predetermined intervals along the inner surface of the cylinder 71. In this structure, water containing a surfactant is sprayed onto the mist from the plurality of nozzles 47, so that the odor component contained in the odor gas can be adsorbed more efficiently. Furthermore, the nozzle 47 for spraying water containing a surfactant can also be disposed inside a supply pipe 78 that supplies odor gas to the cyclone 70 that is the deodorization tank 41, as shown by the chain line in FIG. The above cyclone 70 collects the mist adsorbing the odor component at the center of the lower end and discharges it from the discharge port 75. The exhaust gas from which the mist has been separated passes through the top plate 72 and is provided inside the cyclone 70. Exhaust from the port 73. The cyclone 70 can be separated and recovered efficiently by adhering the mist adsorbing the odor component to the inner surface of the cyclone 70 by the action of static electricity while adsorbing the odor component of the odor gas to the mist sprayed from the nozzle 47. .

Further, in the deodorizing apparatus of FIG. 4 , the collecting apparatus 43 is constituted by the first collecting apparatus 43A and the second collecting apparatus 43B, and the cyclone 70 used in combination with the deodorizing tank 41 is used as the first collecting apparatus 43A. The cooling duct 60 is connected to the discharge side of the cyclone 70 as the second recovery device 43B. The cooling duct 60 which is the second recovery device 43B separates and recovers the mist remaining in the exhaust gas discharged from the cyclone 70.

Polyethylene glycol is used as a surfactant to be added to water. However, polyvinyl alcohol, alkylglycoside, etc. can also be used for surfactant. The surfactant is added to water to a predetermined concentration and temporarily stored in the storage tank 4. Water containing a surfactant stored in the storage tank 4, depending on the pressure pump 16, 46 and the supply pump 2 9, is supplied to the deodorization tank 1,21,31,41.

The deodorizing apparatus shown in FIG. 1 and FIG. 3 connects the deodorizing tank 1 and the recovery apparatus 3 in two stages, and supplies water containing a surfactant to each deodorizing tank 1 by atomizing it into mist. Odor gas is absorbed by mist and collected. In this way, the structure in which the deodorization tank 1 and the recovery device 3 are connected in multiple stages is supplied to each stage of the deodorization tank 1 by atomizing water containing a surfactant into the mist, and at each stage of the recovery apparatus 3 Since the mist adsorbing the odor component is recovered and separated, the concentration of the odor component contained in the odor gas passing through the multi-stage deodorization tank 1 and the recovery device 3 can be remarkably reduced. However, the deodorizing apparatus of this invention can connect a deodorizing tank and a collection | recovery apparatus to 1 step | paragraph, and can also connect it to 3 or more steps | paragraphs. Furthermore, although the deodorizing apparatus shown in FIG. 1 and FIG. 3 connects the deodorizing tanks 1, 21, and 31 having the same structure and the collecting apparatus 3 in two stages, the deodorizing apparatus is different from the deodorizing tank and the collecting apparatus having different structures. Can be connected in multiple stages.

The deodorizing apparatus shown in FIG. 1 separates and deodorizes the odor components contained in the odor gas as follows.
Odor gas is supplied to the deodorization tank 1, and water containing a surfactant is sprayed on the mist of fine particles inside the deodorization tank 1 by the electrostatic spraying device 15 which is the atomizing device 2. The electrostatic spraying device 15 sprays the mist sprayed from the nozzle 17 as fine particles onto the deodorizing tank 1 with the electrostatic voltage of the high-voltage power supply 19. The mist sprayed on the deodorizing tank 1 contacts the odor gas and adsorbs the odor component contained in the odor gas. The mist adsorbing the odor component is discharged from the deodorization tank 1 together with the exhaust gas. The mist in the exhaust gas discharged from the deodorization tank 1 is recovered by the recovery device 3. The odor gas from which the odor component is adsorbed and separated by the mist is discharged after the concentration of the odor component is lowered.

The deodorizing apparatus shown in FIG. 3 separates and deodorizes the odor components contained in the odor gas as follows.
The odor gas is supplied to the deodorization tank 21 storing water containing the surfactant, and the ultrasonic vibrator 26 fixed to the bottom surface of the deodorization tank 21 with the ultrasonic atomization device 25 which is the atomization device 22. Ultrasonic vibration is radiated from the water, and water containing a surfactant is sprayed onto a mist of fine particles. The atomized mist contacts the odor gas supplied to the deodorization tank 21 and adsorbs the odor component contained in the odor gas. The mist adsorbing the odor component is discharged from the deodorization tank 21 together with the exhaust gas. The mist in the exhaust gas discharged from the deodorization tank 21 is recovered by the recovery device 3. The odor gas from which the odor component is adsorbed and separated by the mist is discharged after the concentration of the odor component is lowered.

The deodorizing apparatus shown in FIG. 4 separates and deodorizes the odor components contained in the odor gas as follows.
Odor gas is supplied to the cyclone 70 that is the deodorization tank 41, and water containing a surfactant is electrostatically sprayed into the deodorization tank 41 from the nozzle 47 of the electrostatic spray device 45 that is the atomizer 42. . The electrostatic spraying device 45 sprays the mist sprayed from the nozzle 47 as fine particles onto the deodorization tank 41 with the electrostatic voltage of the power supply 49. The mist sprayed on the deodorization tank 41 contacts the odor gas and adsorbs the odor component contained in the odor gas. Further, since the cyclone 70 as the deodorizing tank 41 is connected to the power source 49 as the mist adsorption unit 76, the mist charged and sprayed from the nozzle 47 is adsorbed on the inner surface of the cyclone 70 by the electrostatic force. And efficiently collect. In the cyclone 70 which is the first recovery device 43A, the exhaust gas from which the mist adsorbing the odor component is recovered is supplied to the cooling duct 60 which is the second recovery device 43B, and the mist remaining in the exhaust gas is reduced. Collected. The odor gas from which the odor component is adsorbed and separated by the mist is discharged after the concentration of the odor component is lowered.

  The deodorizing apparatus of the present invention can efficiently separate and deodorize odor components contained in odor gas discharged from factories such as printing factories and paint factories.

DESCRIPTION OF SYMBOLS 1 ... Deodorizing tank 2 ... Atomization apparatus 3 ... Collection | recovery apparatus 3A ... 1st collection | recovery apparatus
3B ... 1st collection device 4 ... Storage tank 15 ... Electrostatic spray device 16 ... Pressure pump 17 ... Nozzle 18 ... Electrode 19 ... High pressure power source 21 ... Deodorization tank 21A ... Inlet 21B ... Discharge port 22 ... Atomization device 25 DESCRIPTION OF SYMBOLS ... Ultrasonic atomizer 26 ... Ultrasonic vibrator 27 ... AC power supply 29 ... Supply pump 31 ... Deodorization tank 32 ... Atomization apparatus 41 ... Deodorization tank 42 ... Atomization apparatus 43 ... Collection apparatus 43A ... 1st collection apparatus
43B ... 1st collection | recovery apparatus 45 ... Electrostatic spray apparatus 46 ... Pressure pump 47 ... Nozzle 48 ... Electrode 49 ... Power supply 50 ... Cyclone 51 ... Cylindrical 52 ... Top plate 53 ... Exhaust port 54 ... Taper part 55 ... Discharge port 60 ... Cooling duct 61 ... Heat exchanger 62 ... Cooling pipe 70 ... Cyclone 71 ... Cylinder 72 ... Top plate 73 ... Exhaust port 74 ... Taper part 75 ... Discharge port 76 ... Adsorption part 77 ... Insulating material 78 ... Supply pipe

Claims (5)

A deodorization tank (21) to which odor gas is supplied, an atomizer (22) for supplying water containing a surfactant to the mist by atomizing the deodorization tank (21), and a discharge from the deodorization tank (21) A recovery device (3) for separating mist from the exhaust gas generated,
The atomizer (22) is an ultrasonic atomizer (25) that sprays water containing a surfactant as a mist of fine particles inside the deodorization tank (21). ) A plurality of ultrasonic vibrators (26) that atomize water containing a surfactant into fine mist by ultrasonic vibration, and an AC power supply (27) that supplies high-frequency power to the ultrasonic vibrator (26). The deodorizing tank (21) further includes a plurality of ultrasonic vibrators (26) arranged in the direction from the odor gas inlet (21A) to the outlet (21B), and the deodorizing tank The ultrasonic vibrator (26) fixed to the bottom of (21) radiates ultrasonic vibration upward, ultrasonically vibrates water containing surfactant, and atomizes it from the liquid surface to mist. The mist made into contact with the odor gas supplied to the deodorization tank (21) adsorbs the odor component contained in the odor gas,
The recovery device (3) comprises a cyclone (50), separates the mist from the exhaust gas with the cyclone (50),
A deodorizing apparatus configured to adsorb odor gas supplied to the deodorization tank (21) to mist to reduce the concentration of odor components. A deodorization tank (41) to which odorous gas is supplied, an atomization device (42) for supplying water containing surfactant to the mist by atomizing the deodorization tank (41), and a discharge from the deodorization tank (41) A recovery device (43) for separating the mist from the exhaust gas to be discharged,
The atomizer (42) is an electrostatic atomizer (45) that electrostatically sprays water containing a surfactant,
The atomization device (42) includes a nozzle (47) that electrostatically sprays water containing a surfactant, the recovery device (43) includes a cyclone (70), and the nozzle (47) and the The cyclone (70) is provided with a power source (49) that provides a potential difference, and the mist sprayed electrostatically from the nozzle (47) adheres to the inner surface of the cyclone (70) and is recovered.
A deodorizing apparatus configured to adsorb odor gas supplied to the deodorization tank (41) to mist to reduce the concentration of odor components. The deodorizing apparatus according to claim 1 or 2 , wherein the odor gas is an organic solvent. The collecting device (3), (43) is provided with a cooling duct (60) for cooling the exhaust gas, according to claim 1 or 2 for recovering mist from odorous gas is cooled in the cooling duct (60) Deodorizing apparatus described in 1. The deodorization tanks (1), (21), (31), (41) and the recovery devices (3), (43) are connected in multiple stages, and each deodorization tank (1), (21), ( The deodorizing apparatus according to claim 1 or 2 , wherein water containing a surfactant in (31) and (41) is atomized and supplied to the mist, and the odor gas is adsorbed and recovered by the mist.

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