JPH0574624U - Deodorizer - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Separation of liquids containing malodorous components and discharge to the outside of the container without damaging the deodorant with mist, and spoilage of animals and / or spots, or of animals. Provide a deodorizing device that effectively removes offensive odors derived from excrement. [Structure] Sealed containers 10A, 10B provided with inlets 11A, 11B, and adsorption mats 12A, 12B provided with an acidic substance and / or an alkaline substance provided on the inner wall of the container. , Drainage ports 13A, 13 provided at the bottom of the container for discharging the separated liquid
B, a gas-liquid separation / neutralization unit 1 including the malodorous exhaust ports 14A and 14B opened in the container, a deodorizing container 20 containing a deodorant 22, and a malodor separated in the container. And an exhaust port 24 for exhausting gas C obtained by contacting the deodorant 22.

Description

[Detailed description of the device] [Industrial applications]

 The present invention relates to a malodorous deodorizing device, more specifically, a malodorous odor derived from animal and / or plant spoilage or animal excrement, which is brought into contact with an adsorption mat to form a liquid and gas, mist, and / or aerosol The present invention relates to a deodorizing device, characterized in that the liquid is neutralized, the liquid is simultaneously neutralized and discharged to the outside of the container, and the separated malodor is brought into contact with the deodorant.

[0001]

[Prior Art]

 The vacuum car has an indispensable role in collecting human waste, but since most of its work is done in urban areas, it has a wide range of effects, especially in shopping districts. It is customary. The offensive odor from the vacuum car is due to the air in the pump tank being discharged into the atmosphere during the vacuum pump operation. During this exhaust, ammonia (50-80 ppm) and hydrogen sulfide (500-3000 ppm) are discharged. ), Methyl mercaptan (20-80 ppm), etc. are contained, and they are released into the atmosphere with a large amount of untreated mist. In this way, the concentration of hydrogen sulfide and ammonia contained in the exhaust gas is high, and since the concentration of hydrogen sulfide is particularly high, it is necessary to consider damage to the human body. It is necessary for residents to take sufficient measures to exhaust the air from the bar car. However, since it is almost impossible to install a deodorizing device on the chassis, it is a reality that even a device with a good deodorizing effect cannot be installed even today, and it is very difficult to take measures against deodorizing a vacuum car. The reasons for this are: (1) The conditions are different when sucking up and when sucking empty when moving the hose. In addition, operation is frequent and there is intake air in addition to exhaust air, which makes mounting conditions difficult depending on the system. (2) A gas with a very high concentration is discharged in a portion where the time of exhaust gas is short. (3) Mist is scattered in the exhaust gas and must be removed, but it must not affect the efficiency of siphoning. (4) Due to the structure of the vacuum car, there are restrictions on the deodorizing method, and large ones cannot be installed. It is also necessary to remove the deodorizing device when servicing the vehicle (vehicle inspection). (5) The equipment must be able to withstand continuous and long-term use and be easily handled by the crew of the vacuum car. In addition, it takes a lot of trouble to replace a drug with a short number of days to replace it, and the costly one is too burdensome, and as a result, the device may not be used even if it is attached. Conventionally, for example, as a deodorizing device for a vacuum car, there are (a) propane gas burning method, (b) activated carbon adsorption method, (c) aqueous solution cleaning method, and (d) chemical masking method. The method (a) is dangerous because the flame and the loaded gas cylinder are close to each other, and the equipment is expensive and maintenance is troublesome. Used activated carbon is a source of malodor. The methods (c) and (d) also have a low deodorizing effect. For example, when using a deodorizing device that uses a deodorant, the exhaust from the tank contains solids, oil mist, water mist, etc., and these solids and mist adhere to the deodorant. Then, the deodorizing effect sharply decreases. For this reason, a device was used in which the exhaust gas was washed by passing it through water before being guided to the deodorant.However, in such a device, the exhaust gas absorbs moisture as it passes through the liquid, and is also blown into the exhaust gas. As a result, the liquid becomes a mist and scatters, eventually the deodorant gets wet, and the deodorizing effect is low.

[0002]

[Problems to be solved by the device]

 The present invention solves the problems (1) to (5) required for a deodorizing device for a vacuum car and the above-mentioned drawbacks in the conventional deodorizing method and deodorizing device, and at the same time, the solid substance in the gas-liquid separation unit is eliminated. , Sufficiently separates fats, oil mist, and water mist, neutralizes hydrogen sulfide, which is the main component of malodor, ammonia and ammonium hydroxide dissolved in mist, and discharges the separated liquid. Another object of the present invention is to provide a deodorizing device having an excellent deodorizing effect by introducing the separated gas into a deodorizing unit containing a deodorant.

[0003]

[Means for Solving the Problems]

 As shown in FIG. 1, the deodorizing device of the present invention is a neutralization and gas-liquid separation container provided with inlets 11A and 11B for bad odor A derived from putrefaction of animals and / or food or excrement of animals. 10A and 10B, and adsorption mats 12A and 12B that are provided in the container and that contain an acidic substance and / or an alkaline substance in at least a portion of the surface near or in contact with the malodor, Drainage ports 13A and 13B provided at the lower part of the container for discharging the separated liquid to the outside of the containers 10A and 10B, and malodors A1 and A2 composed of gas, mist, and / or aerosol opened in the container. Exhaust ports 14A, 14B of neutralization and gas-liquid separation units 1A, 1B, a closed container 20 containing a deodorant 22 and an inlet 21 for introducing a separated malodor into the closed container. ,the above The deodorizing unit 2 is composed of an exhaust port 24 for discharging the gas C obtained by contacting the deodorant.

The neutralization and gas-liquid separation unit 1, which is a part of the deodorizing apparatus of the present invention, is an alkali neutralization and gas-liquid separation unit for removing a bad odor composed of an acidic substance such as hydrogen sulfide and sulfur methane. 1B and either one of the acid neutralization and gas-liquid separation unit 1A for removing basic substances such as ammonia and amines, and preferably both. As shown in FIG. 2, the alkaline neutralization and gas-liquid separation unit 1B is provided with an alkali neutralization and gas introduction port 11B for introducing a malodor A derived from putrefaction of animals and / or food or excrement of animals. The liquid separation container 10B, a means for swirling the introduced malodor along the inner wall of the container, and an alkaline substance contained in at least the contact surface with the malodor or a portion near the contact surface provided in the container. A suction mat 12B, a drainage port 13B provided in the lower part of the container for discharging the separated liquid to the outside of the container 10B, and a malodorous gas consisting of gas, mist, and / or aerosol opened in the container. The odor introducing port 11B is connected to the exhaust port 14B of the vacuum car or to the exhaust port 14A of the acid neutralization and gas-liquid separation unit 1A. As shown in FIG. 2, the acid neutralization and gas-liquid separation unit 1A is provided with an acid neutralization and gas introduction port 11A for introducing malodorous A derived from spoilage of animals and / or plants or excrement of animals. Liquid separation container 10A, means for swirling the introduced malodor along the inner wall of the container, and an acidic substance is contained in at least the contact surface with the malodor or a portion near the contact surface provided in the container. The suction mat 12A, the drainage port 13A provided at the bottom of the container for discharging the separated liquid to the outside of the container 10A, and the gas, mist, and / or aerosol opened in the container It is composed of a foul-smelling exhaust port 14A.

The weight of the malodorous component contained as particles in the gas is much larger than that of the component existing as a gas body, and these solids, fats and the like cover the surface of the adsorption mat to prevent mist absorption. Since it will prevent the neutralization reaction between the acidic and alkaline components in the mist and the alkaline and acidic substances on the adsorption mat, it will separate and neutralize the bad odor from the vacuum car's odor stack. Before introducing into a container, it is desirable to first remove solids, fats, etc. contained in the gas.

The adsorption mat 12A is for removing a liquid mainly containing water and ammonia, which is the main component of the malodor, and is at least close to the contact surface or the contact surface of the malodor A1 in a closed container. An adsorption mat in which a portion contains an acidic substance, which is a fibrous mat made of plant fibers or plastic fibers containing an acidic substance. Further, as the above-mentioned adsorption mat, a laminated mat in which an acidic substance adhered to or absorbed by a water-absorbing substance is laminated between a plurality of the above fibrous mats is desirable. As the above-mentioned acidic substance, mineral acids such as sulfuric acid and hydrochloric acid, or organic acids such as phthalic acid and citric acid are used. Examples of water-absorbing substances include paper, fiber waste, wood chips, sawdust, activated carbon, clay, and foamed resin with open cells.

To remove the odor of acidic substances such as hydrogen sulfide and mercaptan from the malodor A, the malodor can be directly separated from the odor of a vacuum car, or the malodor after acid neutralization and gas-liquid separation can be separated into other gas-liquid separation. Further, the adsorption mat 12B, which is provided on the inner wall of the alkali neutralization container and contains the alkaline substance at least on the contact surface having a bad odor or at a portion close to the contact surface, is brought into contact. As the material of the mat, plant fiber or plastic fiber is used. Further, as the above-mentioned adsorption mat, a laminated mat in which an alkaline substance adhered to or absorbed by a water-absorbent substance is interposed between a plurality of the above fibrous mats and laminated is desirable. As the alkaline substance, alkaline substances such as caustic soda and caustic potash are used. Similarly, examples of the water absorbing material include paper, fiber waste, wood chips, sawdust, activated carbon, clay, and foamed resin having open cells.

[0008] In order to contact the adsorption mats 12A and 12B in the neutralizing and gas-liquid separation containers 10B and 10A, it is necessary to lengthen the contact time with the adsorption mat, and the malodor is swirled in the container. As a means for swirling, a well-known means such as using a cylindrical container and providing an odor introduction port for this container in the tangential direction and using a swirl generating member such as a blade is used. Be done. The liquid separated in the gas-liquid separation units 1, 1B, 1A is discharged to the outside from the liquid discharge ports 13B, 13A at the bottom of the closed cylindrical containers 10B, 10A, while the separated malodors A1, A2 are discharged. The gas is discharged from the air vents 14B and 14A and guided to the inlet 21 of the deodorizing unit 2. As the deodorant, plant essential oils, plant components such as camphor, cinnamon compounds, fragrances such as lauryl methacrylate, chemical deodorants such as paradichlorobenzene, activated carbon and the like are used. Since plant essential oils have a very good affinity with malodorous components, act as neutralizers for malodors, and significantly reduce odors, they are particularly suitable as deodorants.

[0009]

Example 1 Deodorizing device of the present invention according to FIG. 1 First, a malodor A derived from animal and / or plant spoilage or animal excrement is introduced into an airtight container 10A through an inlet 11A, In the container, at least the contact surface or a portion near the contact surface is brought into contact with the adsorption mat 12A containing an acidic substance to separate the liquid B2 and the malodor A2 composed of gas, mist, and / or azo, The separated liquid B2 is discharged from the drain port 13A to the outside of the container 10A, the malodor A2 is introduced into the closed container 20 through the introduction port 21, and the separated malodor A2 is placed in the closed container 20 containing the deodorant 22. Is contacted with the deodorant 22 and released as a deodorized gas C.

[0010]

Second Embodiment The configuration and operation of the deodorizing device of the present invention will be described with reference to FIG. First, in order to remove acidic substances such as hydrogen sulfide and mercaptans from the malodor A originating from animal and / or plant spoilage or animal excrement, the malodor A is sealed from the inlet 11B to separate gas and liquid. The malodor introduced into the alkali neutralization container 10B is swirled along the inner wall of the container, and an alkaline substance is provided on at least the contact surface or a portion near the contact surface provided on the inner wall of the container. The liquid B1 and the bad odor A1 composed of gas, mist, and / or aerosol are separated by contacting the contained adsorption matte 12B, and the separated liquid B1 is discharged into the container 10B, and further the bad odor A1 is ammonia and amines. In order to remove basic substances such as indoles, the malodor A1 is introduced from the inlet 11A into the gas-liquid separation and acid neutralization container 10A, which is The liquid B2 and the gas, mist, and / or aerosol are swirled and brought into contact with the adsorption mat 12A that is provided on the inner wall of the container and at least the contact surface or a portion near the contact surface contains an acidic substance. The separated liquid A2 is discharged to the outside of the container 10A, and the separated malodor A2 is introduced into the deodorizing container 20 containing the deodorant 22 and comes into contact with the deodorant 21 to deodorize the gas. It is released into the atmosphere as C. In particular, if the deodorized gas C is discharged toward the ground together with the separated liquids B1 to B3, the gas C can be absorbed into the ground without being diffused widely into the atmosphere and the malodor can be suppressed.

[0011]

Third Embodiment A deodorizing device according to another embodiment of the present invention will be described with reference to FIG. First, the malodor A originating from animal and / or plant spoilage or animal excrement is brought into contact with the adsorption mat to remove solids, fats, oil mist, etc., and then sealed with the inlet 11A. A bad odor of liquid B2, gas, mist, and / or aerosol introduced into the container 10A and brought into contact with the adsorption mat 12A containing an acidic substance in at least the contact surface or a portion near the contact surface in the container. A2 is separated and the separated liquid B2 is discharged to the outside of the container 10A through the drain port 13A. Next, the malodor A2 is introduced to remove the malodor of acidic substances such as hydrogen sulfide and methane sulfide from the malodor A2. The adsorption neutralization and gas-liquid separation container 10B was introduced from the inlet 11B, and an adsorption material containing an alkaline substance at least in the contact surface with the malodor or in the vicinity of the contact surface was provided in the container. 12B, and the separated liquid is discharged to the outside of the container 10B through a drain port 13B provided in the lower part of the container, and a bad odor A1 consisting of gas, mist, and / or air is sealed from an inlet port 21. The offensive odor introduced into the container 20B and separated in the closed container 20 containing the deodorizing agent 22 is brought into contact with the deodorizing agent 22, and the deodorized gas C is released.

[0012]

[Effect of the device]

 According to the present invention, (1) it is possible to remove ammonia (50 to 80 ppm), hydrogen sulfide (500 to 3000 ppm), methyl mercaptan (20 to 80 ppm) and other malodorous components in exhaust gas together with a large amount of mist. It is possible to prevent damage to the human body due to the high concentration of hydrogen sulfide, and to take sufficient measures to exhaust air from the vacuum car to residents in the vicinity, including workers, and to eliminate a large amount of mist. Since it is removed, the deodorant does not get wet even if the treated malodor is brought into contact with the deodorant, it is efficiently used, the amount of deodorant used is small, and the effective period can be extended. (2) It can neutralize and discharge very high concentration gas without affecting efficiency. (3) Deodorizing device must be removed during vehicle maintenance (vehicle inspection). Since the deodorizing device of the present invention is lightweight, small and has a flat plate shape, it is very easy to remove the deodorizing device. (4) The deodorizing device can withstand continuous and long-term use. In addition, the crew of the vacuum car can easily handle it, and the number of days for exchanging chemicals is long, and the adsorption mat used in the present invention is only stored in the gas-liquid separation and neutralization container. Is easy to replace, (5) maintenance costs are low, and (6) exhaust from the tank of the vacuum car contains solids, oil mist, water mist, etc. Although the mist adheres to the deodorizing agent and its deodorizing effect sharply decreases, the present invention causes the exhaust gas to collide with the adsorption mat stretched over the inner wall of the gas-liquid separation container, so that the flow of the exhaust gas flows. Without shutting off Collide with the adsorption mat to destroy the mist, which is absorbed or adsorbed by the adsorption mat in a liquid state, the collected liquid flows down along the inner wall due to gravity, and the malodorous component is concentrated and separated into gas and liquid. It is also discharged to the outside of the neutralization container, so the amount of deodorant used is small and the deodorizing effect is high. As described above, the present invention has excellent effects.

[0014]

[Brief description of drawings]

FIG. 1 is an explanatory view showing a substantial configuration of a deodorizing device of the present invention.

FIG. 2 is an explanatory diagram illustrating an embodiment of the present invention.

FIG. 3 is an explanatory view explaining another embodiment of the present invention.

[Explanation of symbols]

1 ... Gas-liquid separation and neutralization unit 2 ... Deodorization unit 1A ... Gas-liquid separation and acid neutralization unit 1B ... Gas-liquid separation and alkali neutralization unit 10 ... Gas-liquid separation container 10A ... Gas-liquid separation And acid neutralization container 10B ... Gas-liquid separation and alkali neutralization container 11, 11A, 11B, 2
1 ... Inlet 12 ... Adsorption mat 12A ... Adsorption mat containing acidic substance 12B ... Adsorption mat containing alkaline substance 13, 13A, 13B, 23
..Drainage ports 14, 14A, 14B, 24 ...
20 Deodorizing container 22 Deodorant A, A1, A2
・ Foul odor B, B1, B2, B3 ・ ・ Liquid C discharged
..Deodorized malodor

Claims (1)

[Scope of utility model registration request] 1. A closed container provided with an inlet for a malodor derived from putrefaction of animals and / or plants or excrement of animals, and a contact surface or contact with at least the malodor provided on the inner wall of the container. In a portion close to the surface, an adsorption mat containing an acidic substance and / or an adsorption mat containing an alkaline substance, and a drain port provided at the bottom of the container for discharging the separated liquid to the outside of the container, Gas, mist, opened into the container,
And / or a gas-liquid separation / neutralization unit consisting of an offensive odor exhaust port consisting of an aerosol, a deodorizing container containing the deodorant, an inlet for introducing the separated offensive odor into the container, and a deodorant A deodorizing device comprising a deodorizing unit including an exhaust port for discharging a gas obtained by contacting the deodorizing unit.