JP2002001057A - Deodorization apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deodorization apparatus which can keep a high deodorization function stably for a long period, reduce a running cost, and simplify maintenance control. SOLUTION: This apparatus has cyclone structure in which, around a cylindrical clean air exhaust cylinder 4, a primary cooling spray chamber 1, a secondary cooling spray chamber 2, and an ionic oxidation spray chamber 3 are arranged from the outside, a nozzle 5 for spraying magnetic water is fitted to the upper part of each of cooling spray chambers 1 and 2, a mixing nozzle 6 for spraying ionic air and pure water is fitted to the upper part of the chamber 3, a primary suction port 1a is formed in the upper part of the chamber 1, a secondary suction port 2a is formed in the lower part of the chamber 2, a suction port 3a for ionic oxidation is formed in the upper part of the chamber 3, a drop removing filter 7 is installed in the lower part of the chamber 3. and the lower part of the chamber 3 and the lower part of the exhaust cylinder 4 are made to communicate with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directed to deodorizing odors and exhaust mist during baking and drying of paints, and for deodorizing chemicals, foods, feeds, raw materials, etc. in a manufacturing process and a refining process. It relates to a deodorizing device to be installed.

[0002]

2. Description of the Related Art As a conventional deodorizing device, for example, a deodorizing device for exhausting a paint baking furnace, there is a deodorizing device employing a combustion deodorizing method (also called an afterburner method). , And it is put into a combustion chamber, passed through the combustion chamber, and discharged to the outside. The deodorizing device using activated carbon adsorption deodorization method (also called sepio method) sucks exhaust mist and gas from the drying furnace with an exhaust fan, puts it in a cooling room, cools it, and then passes it through activated carbon to remove mist and odor. Was absorbed and exhausted to the outside. Further, a deodorizing apparatus combining the afterburner method and the sepio method has been used.

[0003]

However, since the afterburner type deodorizing apparatus has a combustion chamber, fuel costs are required, running costs are large, and high temperatures are generated, so that internal damage is also accelerated. The cost was high. In addition, the atmosphere was heated to increase global warming. On the other hand, the deodorizer of the Sepio method generates a substance that passes through the filter without being treated, and the cooled mist and odor are passed through a filter such as activated carbon to be absorbed, so that the adsorption capacity is immediately increased. Drop,
It becomes impossible to manage certain processes. For this reason, it is necessary to replace the filter quickly and periodically, and it is necessary to replace the filter together with the price of the filter. Therefore, the running cost is large, and the filter is used as industrial waste. Had become. Further, even in the deodorizing apparatus combining the afterburner method and the sepio method, there is a problem that a certain space is required for installing the deodorizing apparatus, and that a running cost is increased.

The present invention provides a deodorizing apparatus capable of stably obtaining a high deodorizing ability over a long period of time, reducing running costs without using a fuel or a replacement filter, and simplifying maintenance. The purpose is to:

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. That is, a primary cooling spray chamber, a secondary cooling chamber and a secondary cooling air exhaust pipe are arranged around a cylindrical clean air exhaust pipe. A spray chamber and an ion oxidation spray chamber are concentrically arranged, and pure water or magnetic water obtained by magnetizing water is sprayed onto each of the primary cooling spray chamber and the secondary cooling spray chamber by a hydromagnetic treatment device. A nozzle is installed, and a mixing nozzle for spraying ion air and pure water or water is installed at the upper part of the ion oxidation spray chamber. A primary suction port is provided at the upper part of the primary cooling spray chamber, and a secondary cooling spray chamber is provided. A secondary inlet at the bottom of the
A suction port for ion oxidation is provided in the upper part of the ion oxidation spray chamber, a drip filter is provided in the lower part thereof, and a cyclone structure is provided in which the lower part of the ion oxidation spray chamber communicates with the lower part of the clean air exhaust pipe. In the present invention, the "cyclone structure" means that the processing air enters the secondary cooling spray chamber while swirling in the outer primary cooling spray chamber, further enters the ion oxidation spray chamber, and then enters the outside through the clean air exhaust pipe. "Mixing nozzle" as used in the present invention refers to a nozzle that mixes water and ionic air when sprayed, and mixes inside the nozzle It refers not only to those that are sprayed, but also those that are sprayed in a pre-mixed state.

[0006]

FIG. 1 is a diagram showing an embodiment of the present invention, which will be described. (1) is a stainless steel primary cooling spray chamber having an annular space disposed on the outermost side with a cylindrical stainless steel clean air exhaust pipe (4) as a center, and the primary cooling spray chamber (1). )
A primary suction port (1a) is provided in the upper part of the, and the primary suction port (1a) is arranged so that the processing air is sucked from a tangential direction (see FIG. 3). In addition, a re-suction port (1b) is provided above the primary cooling spray chamber (1),
Spiral and piece-shaped rectifying fins (1c) are provided in a predetermined arrangement on the inner wall of the primary cooling spray chamber (1) near the re-suction port (1b) and the primary suction port (1a) (FIG. 5). reference).
The rectifying fins (1c) serve to guide the sucked processing air to spirally flow downward and to flow downward, and the re-suction port (1b) serves to clean the exhaust air from the clean air exhaust pipe (4). A part of the air is returned to the primary cooling spray chamber (1) for re-inhalation to further enhance the deodorizing effect. The re-inlet (1b) is perpendicular to the primary inlet (1a) and clean. The air is arranged to be re-inhaled from the tangential direction. (2) is a stainless steel secondary cooling spray chamber having an annular space provided inside the primary cooling spray chamber (1) around the clean air exhaust pipe (4). In the lower part of (2), two secondary suction ports (2a) are provided so that the processing air in the primary cooling spray chamber (1) is sucked in from the tangential direction (see FIG. 3). Further, spiral and piece-shaped rectifying fins (2b) are provided in a predetermined arrangement on the inner wall of the secondary cooling spray chamber (2) near the secondary inlet (2a) (see FIG. 5). The fins (2b) serve to guide the processing air entering the secondary cooling spray chamber (2) to spiral and flow upward. The primary suction port (1a), the secondary suction port (2a) and the ion oxidation suction port (3
a) may be provided at several places.

[0007] The (3) stainless steel ion oxidation spray chamber () is provided further inside the secondary cooling spray chamber (2) and has an annular space disposed immediately outside the clean air exhaust pipe (4). 3), an ion oxidation inlet (3a) is provided at an upper portion of the ion oxidation spray chamber (3) so that the processing air is sucked from a tangential direction, and the vicinity of the ion oxidation inlet (3a) is provided. Ion oxidation spray room (3)
A spiral and piece-shaped rectifying fin (3b) is provided on the inner wall in a predetermined arrangement (see FIG. 5). The rectifying fins (3b) serve to guide the incoming processing air to spirally flow downward. The primary cooling spray chamber (1), the secondary cooling spray chamber (2), and the ion oxidation spray chamber (3) are arranged concentrically around the clean air exhaust pipe (4) and are integrally formed. I have. Reference numeral (5) denotes a number of nozzles arranged substantially concentrically at predetermined intervals above each of the primary cooling spray chamber (1) and the secondary cooling spray chamber (2), and the nozzle (5) is a hydromagnetic treatment device ( In 10), magnetic water obtained by magnetizing pure water or tap water is installed so that it can be sprayed from above into the primary cooling spray chamber (1) and the secondary cooling spray chamber (2) evenly (see FIG. 2). (6)
Reference numeral denotes a plurality of mixing nozzles arranged substantially concentrically at a predetermined interval above the ion oxidation spray chamber (3), and is attached so that ion air and pure water or tap water can be mixed and sprayed inside.

[0008] (7) is a drip filter provided in the lower part of the ion oxidation spray chamber (3), using a stainless steel mesh filter as the drip filter (7), to prevent the spray mist scattering of the final exhaust Play a role. (8) is an exhaust fan provided above the clean air exhaust pipe (4), and the motor of the exhaust fan (8) is connected to an inverter in order to save energy and appropriately control the exhaust amount. It is good to let it. (9) are discharge pipes respectively provided for allowing water sprayed from the nozzle (5) and the mixing nozzle (6) to accumulate below and overflow when a predetermined water level is reached. (10) is a hydromagnetic treatment apparatus used to magnetize pure water supplied from a pure water tank (13) by a pump (12) to magnetic water, and comprises a nozzle (5) and a pump (12). ) (See FIGS. 2, 3, and 4). The pure water tank (13) is replenished with pure water. Alternatively, a pure water producing machine may be installed to supply tap water to make pure water. (11) is a voltage-adjustable ion air generator connected to the mixing nozzle (6), and the ion air generator (11) generates negative ion air. In addition, by adjusting the voltage, the amount of generated ions is controlled to increase the oxidizing ability and to reduce residual ozone. (14) is a ceramic filter provided below the clean air exhaust pipe (4) (see FIG. 5), and (15) is a negative pressure side above the clean air exhaust pipe (4), that is, an exhaust fan (8). It is an outside air intake damper provided further below (see FIG. 5). The outside air intake damper (15) and the ceramic filter (14) serve to reduce residual ozone.

The operation of the present invention will be described with reference to FIGS. The exhaust fan (8) is operated in advance. First, when the high-temperature processing air is sucked into the primary cooling spray chamber (1) from the primary suction port (1a) as indicated by the bold arrow in FIG. 3, the processing air rotates from the tangential direction along the outer periphery. At the same time, it is guided by the rectifying fins (1c) and spirally spirals and flows downward. Then, the air enters the secondary cooling spray chamber (2) from the secondary suction port (2a) below the secondary cooling spray chamber (2). This processing air is introduced from the tangential direction as shown by a middle arrow shown in FIG. 3, rotates along the outer circumference, and swirls by the rectifying fins (2b) and flows upward. At this time, magnetic water is sprayed on the processing air from a number of nozzles (5) disposed above the primary cooling spray chamber (1) and the secondary cooling spray chamber (2). Thereafter, the cooled processing air is sucked from the ion oxidation inlet (3a) at the upper part of the ion oxidation spray chamber (3), flows along the outer periphery, is guided to the rectifying fins (3b), and swirls downward. It flows spirally. At this time, ion air is sprayed together with pure water or tap water from the mixing nozzle (6) above the ion oxidation spray chamber (3), thereby eliminating the odor of the treated air. In FIG. 3, an arrow turning right indicates a state of turning downward, and an arrow pointing left indicates a state of turning upward. The deodorized clean air passes through the drip filter (7) and is exhausted from below to above the clean air exhaust pipe (4) as shown by the arrow in FIG. Then, the clean air is exhausted to the outside as shown by the white arrow, and a part of the air is returned to the re-intake port (1) provided in the upper part of the primary cooling spray chamber (1).
1) and 3), pass through the primary cooling spray chamber (1), the secondary cooling spray chamber (2), and the ion oxidation spray chamber (3) together with the processing air and again. It is purified air deodorized by ion air and exhausted to the outside. By returning this part, the processing air is exhausted in a further deodorized state.

Next, the functions of the primary cooling spray chamber (1), the secondary cooling spray chamber (2), the ion oxidation spray chamber (3) and the clean air exhaust pipe (4) of the present embodiment will be described in detail. First, primary cooling spray chamber (1)
, Pure water from a pump (12) is converted into magnetic water by a hydromagnetic treatment device (10), and is shower-sprayed from a nozzle (5) of a primary cooling spray chamber (1). The primary cooling and cleaning removes vapors such as carbon oxides and hydrocarbons contained in the treated air and cools the high-temperature air containing nitrogen carbide and the like sucked from the primary inlet (1a). The temperature of the processing air supplied into the oxidation spray chamber (3) is set to 40.
The temperature can be lowered to a temperature of not more than ℃, and the oxidation efficiency by ozone in the ion oxidation spray chamber (3) is improved.
At this time, by using magnetic water, the water solubility of various mist of Knox air is improved, and the mist removing effect and the cooling effect are enhanced. Further, since the clean air is supplied and mixed through the re-suction port (1b), the cooling effect is enhanced. The next secondary cooling spray chamber (2) is a primary cooling spray chamber (2) which is introduced from the secondary suction port (2a) into the secondary cooling spray chamber (2) in order to further enhance the effect of the primary cooling spray chamber (1). In the same process as the primary cooling spray chamber (1), the processing air is subjected to secondary cooling and washing while raising the processing air in a cyclone. At this time, the cooling effect is enhanced by using the evaporation heat of the spray. At this time, the cooling effect is enhanced by using the evaporation heat of the spray.

The ion oxidation spray chamber (3) serves to completely deodorize the odor of the processing air, and cools the secondary processing air flowing through the ion oxidation inlet (3a) from the pump (12). Pure water and ion air generator (1
The negative ion air generated by the corona discharge according to 1) is mixed by the mixing nozzle (6), spray-sprayed, and ion-oxidized while the processing air is descended in cyclone. At this time, since the conductivity of ions is reduced by using pure water, the efficiency of oxidation by ozone is improved, and the efficiency is higher than that in the case of using normal water, so that a high deodorizing effect can be obtained without reducing the ion effect. Further, in the case of using ordinary water such as tap water instead of the pure water, it is possible to obtain the same effect as in the case of using pure water by increasing the number of ion air generators (11). is there. Since the ion oxidation effect is large, the negative ions generated by the ion air generator (11) reach farther together with the atomized spray water. In addition, a drip filter (7) is installed on the way to prevent the spray mist from scattering in the final exhaust. The next clean air exhaust pipe (4) sucks in air exhausted in the ion oxidation spray chamber (3) with an exhaust fan (8) and discharges the air from the exhaust duct to the outside.

[0012]

The present invention having the above-described structure has the following effects.

A primary cooling spray chamber (1), a secondary cooling spray chamber (2), and an ion oxidation spray chamber (3) are arranged from the outside centered on the cylindrical clean air exhaust pipe (4). Concentrically arranged, the upper part of the primary cooling spray chamber (1) and the upper part of the secondary cooling spray chamber (2)
A nozzle (5) for spraying pure water or magnetic water obtained by magnetizing water is installed in the hydromagnetic treatment device (10), and ion air and pure water or water are provided above the ion oxidation spray chamber (3). The primary cooling spray chamber (1) is provided with a primary inlet (1a) at the upper part of the primary cooling spray chamber (1), and the secondary nozzle is provided at the lower part of the secondary cooling spray chamber (2). A suction port (2a) is provided and a suction port (3) for ion oxidation is provided above the ion oxidation spray chamber (3).
a) is provided, a drip filter (7) is provided at the lower part thereof, and a cyclone structure is provided in which a lower part of the ion oxidation spray chamber (3) and a lower part of the clean air exhaust pipe (4) communicate with each other. The present invention relates to each inlet (1a),
Since (2a) and (3a) are provided on the upper and lower sides to form a cyclone, and high-temperature processing air flows in a spiral, the cooling effect is large, and the oxidation efficiency by ozone is improved by cooling to 40 ° C. or less. The primary cooling spray chamber (1), the secondary cooling spray chamber (2), the ion oxidation spray chamber (3), and the clean air exhaust pipe (4) have a quadruple integrated structure. Since the inlets (2a) and (3a) of the ion oxidation spray chamber (3) are provided in the apparatus, the apparatus can be made compact and compact. In addition, since the conventional combustion chamber and replacement filter are unnecessary, soot is not generated during the treatment process and the atmosphere is not heated, so there is no need to worry about global warming, and no industrial waste is generated. Costs can be reduced and maintenance can be simplified. In addition, the treatment of water after spraying is performed by the discharge pipe (9).
Can be easily recovered from Further, the present invention is a deodorizing treatment of the exhaust mist of the electrodeposition coating baking drying furnace and the powder coating baking drying furnace,
In addition, deodorization of exhaust air from paint baking and drying furnaces, deodorization in the brewing process, deodorization in the production of feed and fertilizer,
Deodorizing treatment at the time of human waste treatment, deodorizing treatment at livestock farms, deodorizing treatment at chemical refining process, deodorizing treatment of garbage, deodorizing treatment at food processing and cooking facilities, deodorizing treatment at casting process, deodorizing treatment at rubber factory, It can be used in many fields such as deodorizing treatment in tanned leather, deodorizing treatment in paper mills and raw silk spinning processes, and deodorizing treatment in paint hanger combustion peeling process.

[0014] According to a second aspect of the present invention, a clean air exhaust pipe is provided.
By providing a re-suction port (1b) at the upper part of the primary cooling spray chamber (1) for returning a part of the clean air exhausted from the chamber and re-inhaling it into the primary cooling spray chamber (1),
The untreated odor in the deodorizing treatment step is treated again and the high-concentration odor to be treated is diluted, so that the deodorizing effect is enhanced.

According to a third aspect of the present invention, the mixing nozzle (6) is connected to an ion air generator (11) for generating negative ion air and a pure water tank (13) for supplying pure water. Since the generated negative ions reach farther together with the atomized spray water, the ion oxidizing effect is large, and since pure water is used, the ion conductivity does not decrease. The efficiency is further enhanced, and a high deodorizing effect is obtained. In particular, if it is used as a deodorizing treatment for exhaust mist of electrodeposition coating baking drying oven and powder coating baking drying oven,
A high deodorizing ability can be obtained stably over a long period of time.

As set forth in claim 4, the primary inlet (1a).
Spiral rectifying fins (1c), (2b) on the inner walls of the spray chambers (1), (2), (3) near the inlet, the inlet for secondary (2a), and the inlet for ion oxidation (3a) , (3b) improves the contact efficiency with the sprayed catalyst and enhances the deodorizing effect.

[0017] A clean air exhaust pipe as in claim 5 (4).
A ceramic filter (14) is installed below the air filter, and an outside air intake damper (15) is installed on the negative pressure side above the ceramic filter to reduce the remaining ozone and eliminate the possibility of discharging the remaining ozone to the atmosphere. Becomes

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is an explanatory diagram showing a connection state between a nozzle and a mixing nozzle according to the embodiment.

FIG. 5 is a cross-sectional view showing a main part of another embodiment.

[Explanation of symbols]

 Reference Signs List 1 Primary cooling spray chamber 1a Primary inlet 1b Re-inlet 1c, 2b, 3b Rectifying fin 2 Secondary cooling spray chamber 2a Secondary inlet 3 Ion oxidation spray chamber 3a Ion oxidation inlet 4 Clean air exhaust pipe 5 Nozzle 6 Mixing nozzle 7 Drip filter 10 Hydromagnetic treatment unit 11 Ion air generator 13 Pure water tank 14 Ceramic filter 15 Outside air intake damper

Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (Reference) B01D 53/74

Claims (5)

[Claims] 1. A primary cooling spray chamber (1), a secondary cooling spray chamber (2), and an ion oxidation spray chamber (3) are arranged concentrically from the outside around a cylindrical clean air exhaust pipe (4). A nozzle for spraying pure water or magnetic water obtained by magnetizing water with a hydromagnetic treatment device (10) is provided on each of the primary cooling spray chamber (1) and the secondary cooling spray chamber (2). 5) At the same time, a mixing nozzle (6) for spraying ion air and pure water or water is mounted on the upper part of the ion oxidation spray chamber (3), and the mixing nozzle (6) is mounted on the upper part of the primary cooling spray chamber (1). A primary suction port (1a) is provided, a secondary suction port (2a) is provided below the secondary cooling spray chamber (2), and an ion oxidation suction port (2) is provided above the ion oxidation spray chamber (3). 3a) and a drip-fill underneath. Chromatography (7) is provided, and deodorizing device which lower portion is characterized in that a cyclone structure in communication with said lower and the clean air exhaust stack of the ion oxide spray chamber (3) (4). 2. A primary cooling spray port for returning a part of the clean air exhausted from the clean air exhaust pipe (4) to re-inhale the primary cooling spray chamber (1). The deodorizing device according to claim 1, which is provided in an upper part of the chamber (1). 3. The deodorizing apparatus according to claim 1, wherein the mixing nozzle is connected to an ion air generator for generating negative ion air and a pure water tank for supplying pure water. 4. A spiral rectifying fin (1c) on an inner wall of the primary cooling spray chamber (1) near the primary inlet (1a).
A spiral rectifying fin (2b) is provided on the inner wall of the secondary cooling spray chamber (2) near the secondary suction port (2a), and the ions near the ion oxidation suction port (3a) are provided. Spiral rectifying fins (3
2. The deodorizing device according to claim 1, wherein b) is provided. 5. A ceramic filter (14) is provided below the clean air exhaust pipe (4), and an outside air intake damper (15) is provided on the negative pressure side above the clean air exhaust pipe (4). The deodorizing device according to claim 1, which is attached.