JP7162890B2 - Deodorant liquid spray system, deodorant liquid spray device and deodorant liquid spray method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a deodorant liquid spray system, a deodorant liquid spray apparatus, and a deodorant liquid spray method.

In waste disposal facilities such as garbage incinerators, poultry manure disposal facilities, or food processing facilities such as meat processing plants and dairy product factories, the generation of offensive odors has become a problem (for example, Patent Document 1). In addition to being a burden on workers on site, such a bad odor is feared to spread around the facility. Therefore, deodorizing measures are important.

Also, a deodorizing and sterilizing device for such waste disposal facilities has been proposed (Patent Document 2). As shown in FIG. 5, this deodorizing and sterilizing apparatus collects the odor in the facility in the duct 2, and is provided with a spraying means 5 for spraying weakly acidic water in the form of mist in the middle of the duct 2. , the inside of the duct 2 downstream thereof is used as a reaction chamber 7, and the weakly acidic water and the odor component are reacted. However, according to this deodorizing and sterilizing apparatus, it is necessary to install a duct for collecting odors in advance, and furthermore, it is necessary to provide a reaction chamber on the downstream side, which raises the problem of high installation costs. In addition, cleaning of the inside of such piping and maintenance work are also required, resulting in high maintenance costs. In addition, the deodorizing liquid had to be replenished periodically, which was troublesome.

Japanese Patent No. 6445236 Japanese Patent Application Laid-Open No. 2002-301143

The present invention has been made in view of such a background. One of the objects of the present invention is to provide a deodorizing liquid spraying system, a deodorizing liquid spraying device, and a deodorizing liquid spraying method that can be introduced at a low cost and that are easy to maintain.

Means for solving the problem and effects of the invention

According to the deodorant liquid spray system according to the first aspect of the present invention, waste treatment facilities, poultry manure treatment facilities, meat processing plants, dairy product factories, industrial waste treatment facilities, sewage and night soil treatment facilities, livestock farming, A deodorizing liquid spraying system for spraying a deodorizing liquid against an odor source, installed at a site where feed or fertilizer is handled, and containing hypochlorous acid water having a hypochlorous acid concentration of 30 ppm or more. a dilution tank for storing; a deodorant spray nozzle connected to the dilution tank for spraying the diluted hypochlorous acid water onto the deodorant source; and an operation of spraying the diluted hypochlorous acid water from the deodorant spray nozzle. A timer that controls at a predetermined timing, a stock solution tank that is connected to the dilution tank and stores high-concentration hypochlorous acid water before dilution, and sodium dichloroisocyanurate supplied in powder form to the stock solution tank. The hypochlorous acid water stored in the dilution tank can be generated by dissolving the sodium dichloroisocyanurate supplied in the powder form . With the above configuration, it is possible to efficiently eliminate odors by spraying diluted hypochlorous acid water at a predetermined concentration to remove odor-causing bacteria instead of masking or neutralizing odors. Moreover, by supplying sodium dichloroisocyanurate in the form of powder, compared with the case of supplying liquid hypochlorous acid water, there is an advantage that the frequency of refilling can be reduced and maintenance and management can be facilitated.

Further , according to the deodorant liquid spray system according to the second aspect of the present invention, in addition to the above configuration, by controlling the rotation amount of the screw feeder, the hypochlorous acid concentration in the dilution tank Can be configured to adjust The above configuration provides an advantage that the hypochlorous acid concentration of the hypochlorous acid water can be adjusted by a simple method of controlling the rotation of the screw feeder.

Furthermore , according to the deodorant liquid spray system according to the third aspect of the present invention, in addition to any of the above configurations, the deodorant spray nozzle can spray diluted hypochlorous acid water in a hollow cone shape. can.

Furthermore, according to the deodorant liquid spray system according to the fourth aspect of the present invention, in addition to any one of the above configurations, the concentration of hypochlorous acid in the dilution tank can be set to 100 ppm or more.

Furthermore, according to the deodorant liquid spray system according to the fifth aspect of the present invention, in addition to any one of the above configurations, the hypochlorous acid concentration in the dilution tank can be set to 30 ppm to 200 ppm. .

Furthermore, according to the deodorant liquid spray system according to the sixth aspect of the present invention, in addition to any of the above configurations, the deodorant spray nozzle sprays diluted hypochlorous acid water with an average particle size of 30 μm to It can be controlled to spray at 50 μm.

Furthermore, according to the deodorizing liquid spray system according to the seventh aspect of the present invention, in addition to any of the above configurations, the timer causes the diluted hypochlorous acid water to be sprayed to the nozzle every 30 minutes for 3 minutes. can be controlled to spray from

Furthermore, according to the deodorant liquid spraying system according to the eighth aspect of the present invention, in addition to any of the above configurations, a perfume tank for storing perfume and a perfume connected to the perfume tank for spraying the perfume and a spray nozzle. With the above configuration, fragrance is added to the chlorine odor of hypochlorous acid to suppress the odor of sprayed diluted hypochlorous acid water, improving the environment for workers working in harsh environments that require deodorization. be done.

Furthermore, according to the deodorant liquid spray system according to the ninth aspect of the present invention, in addition to any of the above configurations, the perfume spray nozzle can be configured to overlap the spray direction of the deodorant spray nozzle. . With the above configuration, it is possible to alleviate the odor of hypochlorous acid water by spraying the perfume in addition to the diluted hypochlorous acid water sprayed from the deodorant spray nozzle.

Furthermore, according to the deodorizing liquid spray system according to the tenth aspect of the present invention, in addition to any one of the above configurations, the perfume can be limonene. With the above configuration, by using limonene, which has a high fragrance retention effect, it is possible to provide a comfortable environment in terms of odor.

Furthermore, according to the deodorant liquid supply device according to the eleventh aspect of the present invention, waste disposal facilities, poultry manure disposal facilities, meat processing plants, dairy product factories, industrial waste disposal facilities, sewage/human waste disposal A deodorizing liquid supply device installed in any of facilities, livestock farming, and feed and fertilizer handling sites for supplying a deodorizing liquid to a source of odor, and storing powdery sodium dichloroisocyanurate. A hopper, a stock solution tank for storing hypochlorous acid water in which the sodium dichloroisocyanurate is dissolved in the hopper, and a hypochlorous acid concentration of 30 ppm by diluting the hypochlorous acid water supplied from the stock solution tank. a dilution tank as described above, a pump connected to the dilution tank and connected to a deodorant spray nozzle that sprays diluted hypochlorous acid water to a deodorant source, and a diluted hypochlorous acid from the deodorant spray nozzle A timer for controlling the operation of spraying chloric acid water at a predetermined timing, and a screw feeder for supplying the sodium dichloroisocyanurate from the hopper to the undiluted solution tank can be provided. With the above configuration, it is possible to spray diluted hypochlorous acid water at a predetermined concentration from the deodorant spray nozzle, and by removing the odor-causing bacteria instead of masking or neutralizing the odor, it is possible to efficiently deodorize. It is possible to plan Moreover, by supplying sodium dichloroisocyanurate in the form of powder, compared with the case of supplying liquid hypochlorous acid water, there is an advantage that the frequency of refilling can be reduced and maintenance and management can be facilitated.

Furthermore, according to the deodorizing liquid spraying method according to the twelfth aspect of the present invention, waste treatment facilities, poultry manure treatment facilities, meat processing plants, dairy product factories, industrial waste treatment facilities, sewage/human waste treatment facilities A deodorizing liquid spraying method for spraying a deodorizing liquid against a malodor source installed in any of livestock farming, feed and fertilizer handling sites, wherein powdery sodium dichloroisocyanurate is supplied from a hopper to a screw. A process of supplying to a stock solution tank with a feeder and dissolving it to generate hypochlorous acid water and storing it in the stock solution tank, and diluting the hypochlorous acid water in the stock solution tank so that the hypochlorous acid concentration is 30 ppm ~. A step of adjusting to 200 ppm, and a step of spraying the diluted diluted hypochlorous acid water from a deodorant spray nozzle to the deodorant source can be included. As a result, it is possible to efficiently deodorize by spraying diluted hypochlorous acid water at a predetermined concentration to remove the odor-causing bacteria instead of masking or neutralizing the odor.

Furthermore, according to the deodorant liquid spray system according to the thirteenth aspect of the present invention, in addition to the above, the step of spraying diluted hypochlorous acid water from the deodorant spray nozzle is repeated at a predetermined cycle. be able to.

It is a schematic diagram which shows the example which installed the deodorizing liquid spray system in the refuse incineration plant. 1 is a block diagram showing a deodorizing liquid spray system according to Embodiment 1. FIG. FIG. 4 is a schematic diagram showing a setting screen of a controller; FIG. 10 is a block diagram showing a deodorizing liquid spray system according to Embodiment 2; It is a schematic diagram showing a conventional deodorizing and sterilizing device. FIG. 11 is a block diagram showing a deodorizing liquid spray system according to Embodiment 3; It is a schematic diagram which shows a hypochlorous acid water production|generation part.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments and examples according to the present invention will be described based on the drawings. However, the embodiments and examples shown below are examples for embodying the technical idea of the present invention, and the present invention is not limited to the following. Also, the sizes and positional relationships of members shown in each drawing may be exaggerated for clarity of explanation. Furthermore, in the following description, the same names and symbols indicate the same or homogeneous members, and detailed description thereof will be omitted as appropriate. Also, parts with the same reference numerals appearing in a plurality of drawings indicate the same or equivalent parts or members. Furthermore, each element constituting the embodiments and examples according to the present invention may be configured by forming a plurality of elements with the same member, and one member may be used as a plurality of elements, or conversely, one member function can be shared by a plurality of members. Also, the contents described in some of the examples and embodiments can also be used in other examples and embodiments. In addition, the following description uses terms indicating specific directions and positions (e.g., "upper", "lower", "right", "left", and other terms that include those terms) as necessary. However, the use of these terms is for the purpose of facilitating the understanding of the invention with reference to the drawings, and the technical scope of the present invention is not limited by the meanings of these terms. In this specification, the term "comprising" is used in the sense of including both those provided as separate members and those configured as an integral member.
[Embodiment 1]

The deodorizing liquid spraying system, deodorizing liquid spraying device, and deodorizing liquid spraying method according to the present embodiment can be applied to food processing facilities such as waste disposal facilities such as garbage incineration plants, poultry droppings processing facilities, meat processing plants and dairy product factories. It is installed in an area where bad odors are generated, such as a facility or a residue treatment plant, to deodorize. An example of installing a deodorizing liquid spray system 1000 in a garbage incineration plant as Embodiment 1 will be described below with reference to FIG. In this deodorizing liquid spray system 1000 , the deodorizing spray nozzle 10 is arranged separately from the deodorizing liquid supply device 100 . In the waste incineration plant shown in FIG. 1, waste W is transported to a waste incineration plant 10 by transport means T (for example, a truck T). A truck T is received on the platform PF. The transported waste W is put into the garbage pit PT from the truck T via the inlet A and stored therein. The stored waste W is agitated, mixed and homogenized. The mixed waste W in the waste pit PT is collected by a transfer means (for example, a crane), thrown into a hopper, transferred from the hopper to an incinerator, and incinerated. In such a garbage incineration plant, since a strong bad smell is generated in the garbage pit PT where the waste W is stored, a plurality of deodorant spray nozzles 10 for spraying a deodorant liquid are provided above the garbage pit PT. Deodorization is achieved by spraying the deodorizing liquid at a predetermined timing.

The deodorizing spray nozzle 10 is provided around the garbage pit PT above the garbage pit PT. A deodorant spray nozzle 10 spatially sprays a deodorant liquid toward the waste W in the waste pit PT from above. By arranging the deodorant spray nozzles 10 at a plurality of locations so as to surround the upper part of the garbage pit PT, the deodorant liquid can be evenly sprayed over the garbage pit PT. Further, by arranging the deodorizing spray nozzle 10 above the dust pit PT, the deodorizing liquid is easily scattered and diffused within the dust pit PT.

Similarly, the platform PF on which the trucks T converge also emits a foul odor, so it is preferable to provide the deodorant spray nozzle 10 above the platform PF as well. For example, the deodorizing spray nozzles 10 are provided above the portions where a plurality of trucks T are laid. For example, the platform PF is provided with four spray nozzles. Furthermore, the deodorant spray nozzle 10 may be appropriately arranged at other sources of bad odors or at sites where the scattering of bad odors is desired to be prevented.

The timing of spraying the deodorizing liquid inside the garbage pit PT and the timing of spraying the deodorizing liquid onto the platform PF and the like may be set at the same time or independently. For example, in the garbage pit PT, the deodorizing liquid is sprayed at predetermined intervals (for example, once every 30 minutes, about 2 minutes), while the platform PF is sprayed with a longer period (for example, every hour). Once for about 1 minute), the deodorizing liquid may be automatically sprayed for a predetermined time. Alternatively, the spraying of the deodorizing liquid onto the platform PF may be performed by detecting the timing at which the trucks are brought sideways by a sensor or the like. As a result, efficient spraying of the deodorizing liquid is achieved.
(Deodorant liquid spray system 1000)

Next, FIG. 2 shows a block diagram of the deodorizing liquid spray system 1000. As shown in FIG. A deodorant liquid spray system 1000 shown in this figure is composed of a deodorant liquid supply device 100 and a deodorant spray nozzle 10 . The deodorizing liquid supply device 100 includes a hopper 20, a stock solution tank 30, a sub-tank 40, a dilution tank 50, first to fourth pumps PP1 to PP4, and a controller 60 for controlling these. Valves VV are appropriately arranged on the input and output sides of the first to fourth pumps PP1 to PP4. Further, the controller 60 controls the operations of the first to fourth pumps PP1 to PP4, the valve VV, etc., and deodorizes from the deodorant spray nozzle 10 at a predetermined timing while generating a deodorant liquid with a predetermined concentration. The liquid is sprayed onto the area to be deodorized.

The deodorant liquid supply device 100 can be placed in the vicinity of the deodorant spray nozzle 10, that is, in the deodorant target area where the deodorant source exists. is installed in the area to be deodorized, while the deodorant liquid supply device 100, which is other equipment, is preferably installed at a different location. As a result, during work such as replenishment and maintenance, it is not necessary to be exposed to bad odors, and it is not necessary to climb to a high place where the deodorant spray nozzle 10 is installed, so that accessibility is excellent. In the example of FIG. 2, the dilution tank 50 and the deodorizing spray nozzle 10 are connected by piping and can be installed at different locations. In the example of the garbage incineration plant shown in FIG. 1, the deodorant spray nozzle 10 is installed at a high place, for example, the 4th floor, while the other deodorant liquid supply device 100 is installed at the 1st floor.

The dilution tank 50 stores deodorant liquid. A hopper 20, an undiluted solution tank 30, and a sub-tank 40 are provided in front of the dilution tank 50 in order to adjust the deodorant solution to a predetermined concentration and amount.
(Deodorant liquid)

Hypochlorous acid water is used as the deodorant. Hypochlorous acid water has a high deodorizing effect when sprayed. Hypochlorous acid water has been known to have a bactericidal action and is used for sterilization and disinfection purposes. The present inventors noted that the sterilization ability of hypochlorous acid water is also effective for the causative bacteria that cause bad odors, that is, the deodorant effect is exhibited by killing the causative bacteria. is used as a deodorant. In conventional deodorization, there is a method called masking, which uses a strong fragrance like an air freshener to cover up bad odors, and a method called odor neutralization deodorization, which neutralizes and offsets bad odors with other odors to eliminate odors. Although methods have been used to reduce the level of sensation to make it nearly odorless, these methods have involved the presence of the odor-causing microbes themselves, and have merely prevented workers from perceiving the odor. On the other hand, the deodorant liquid spray system 1000 according to the present embodiment employs a fundamental method of attacking odor-causing bacteria to reduce the concentration and suppress the generation of odor. It has the advantage of being highly effective.

In order to obtain hypochlorous acid water, powdery sodium dichloroisocyanurate is dissolved in the deodorizing liquid spray system 1000 according to the present embodiment. As a result, hypochlorous acid water having a desired concentration can be obtained at a lower cost than the method of obtaining hypochlorous acid water by electrolysis. In addition, powdery sodium dichloroisocyanurate is lightweight and has a small volume, so it is superior in terms of handling and storage as compared with the case where the deodorizing liquid is supplied as a liquid. Also, replenishment costs can be greatly reduced. According to the present inventor's trial calculation, the amount of liquid required for deodorizing a general garbage incineration plant with a general garbage pit volume of 16,240,900,000 m3 (length 15.5m x width 26m x height 40.3m) for one month. While chlorous acid water costs about 2 million yen, when sodium dichloroisocyanurate according to the present embodiment is used, it can be suppressed to about 800,000 yen. The particle size and shape of the sodium phosphate are not particularly limited, and may be in the form of granules or pellets, for example. However, the smaller the particle size, the larger the surface area and the easier it is to melt, so this is preferable.
(Concentration of deodorant liquid)

Concentration of the deodorizing solution shall be 30 ppm or more of hypochlorous acid. In general, the higher the hypochlorous acid concentration, the greater the deodorizing effect. However, when the hypochlorous acid concentration increases, the consumption of powdered sodium dichloroisocyanurate increases accordingly, and the running cost increases. In addition, there is concern that when the concentration of hypochlorous acid increases, the corrosion effect on metal also increases. Therefore, the concentration is set according to the required deodorant performance. For example, 100 ppm or more is preferable in the use of a refuse incineration plant. More preferably, it is 100 ppm to 200 ppm in consideration of safety to the human body. Also, in situations where offensive odors are relatively weak, such as food processing facilities, the hypochlorous acid concentration may be 30 ppm to 200 ppm. In particular, it is desirable to use around 30 ppm for the purpose of sterilization, and 200 ppm for the purpose of deodorization. According to a test conducted by the present inventor, the deodorant effect is relatively weak at hypochlorous acid concentrations of 30 ppm to 100 ppm, so it is effective in a closed space with a relatively low volume, such as a garbage incineration plant. It has been found that 100 ppm to 200 ppm is more effective for deodorizing a large space. The results are shown in Table 1 below.

Here, the applicant of the present application injects ammonia of a predetermined concentration into a 1 L gas collection bag (Tedlar bag), further injects 3 ml of hypochlorous acid water of a predetermined concentration, and changes the ammonia concentration with a gas tech detector tube. examined. The concentrations of ammonia were set to 78 ppm or higher (unmeasurable), 50 ppm, and 20 ppm. The concentrations of hypochlorous acid water were 30 ppm, 100 ppm and 200 ppm. The Gastech detector tube used for the measurement was a model 3L for ammonia, the measurement range was 0.5 to 78 ppm, and the suction time was 45 seconds.

From Table 1, it was confirmed that the concentration of ammonia decreased in all cases and that the deodorizing effect was exhibited. In both cases, it was found that the higher the concentration of hypochlorous acid water, the higher the deodorizing effect. In particular, when the ammonia concentration was as high as 78 ppm or more, the deodorizing effect was also remarkable. Conversely, when the ammonia concentration was 20 ppm, no difference due to the concentration of hypochlorous acid water could be detected.
(Hopper 20)

In the example shown in FIG. 2 , powdery sodium dichloroisocyanurate is put into a hopper 20 . Feeding into the hopper 20 may be performed manually, or may be automated using a screw feeder 22 or the like.

The output end of the hopper 20 communicates with the undiluted solution tank 30 . The undiluted solution tank 30 stores hypochlorous acid water in which sodium dichloroisocyanurate in the hopper 20 is dissolved. Therefore, the undiluted solution tank 30 is communicated with a first pump PP1 for externally supplying a diluting solvent such as water. Further, the undiluted solution tank 30 may be provided with a stirring blade or the like as necessary.

The reason why the undiluted solution tank 30 and the dilution tank 50 are separated in this way is that productivity can be improved by separating melting and concentration adjustment as separate processes. That is, if it is attempted to obtain hypochlorous acid water having a predetermined concentration all at once in the dilution tank, it is troublesome to adjust the concentration and it is not easy to evenly melt the water. On the other hand, first, hypochlorous acid water is quickly obtained in an environment where powdery sodium dichloroisocyanurate is easily melted, and then the concentration is adjusted in another tank, so that the desired concentration can be efficiently obtained. Concentrated hypochlorous acid water is easily obtained. In particular, by preparing a stock solution of hypochlorous acid water with a high concentration and then diluting it, hypochlorous acid water with a desired concentration can be efficiently adjusted. In addition, by preparing a sub-tank 40 between the undiluted solution tank 30 and the dilution tank 50 and preparing the diluted hypochlorous acid water in several batches, it is possible to reduce the size of the facility and facilitate stirring. In addition, a small amount of sodium dichloroisocyanurate is easily melted to obtain a uniform melt.

However, the number of such tanks can be adjusted appropriately according to the required processing capacity and processing speed. In the example of FIG. 2, as tanks for storing the deodorizing liquid, three tanks, namely, the undiluted solution tank 30, the sub-tank 40, and the dilution tank 50, are prepared. Conversely, the sub-tank may be omitted.
(Screw feeder 22)

The output end of the hopper 20 is open above the undiluted solution tank 30 . A screw feeder 22 is provided at the output end of the hopper 20 . The screw feeder 22 feeds a predetermined amount of powdery sodium dichloroisocyanurate from the hopper 20 to the stock solution tank 30 . Further, the amount of rotation of the screw feeder 22 is controlled by the controller 60 . Here, the amount of sodium dichloroisocyanurate supplied to the dilution tank 50 is adjusted by the rotation time of the screw feeder 22 . With this configuration, the hypochlorous acid concentration of the hypochlorous acid water can be adjusted by a simple method of controlling the rotation time of the screw feeder 22 .

The amount of sodium dichloroisocyanurate supplied to the dilution tank 50 is adjusted by the controller 60 from the input section. A touch panel provided on the controller 60, physical buttons, knobs, a console, or the like can be used as the input unit. Also, settings can be made from a remote location through wired or wireless communication via LAN or WiFi.

FIG. 3 shows an example of how the controller 60 sets the supply amount. In the example shown in this figure, the input section for setting is composed of a touch panel 61 and a physical switch 62 . Here, by switching the switch 62 , it is possible to switch to a mode with a different supply amount, and the supply amount in each mode is set from the touch panel 61 . In this example, three modes of "sunny", "cloudy" and "rainy" are prepared so that the user can easily understand. I am displaying. Also, on the touch panel 61, the amount of sodium dichloroisocyanurate to be supplied in each of these "fine", "cloudy", and "rainy" modes is set as the rotation time of the screw feeder 22 in "chemical supply time" in FIG. do. In this example, when an item desired to be changed is touched on the touch panel 61, the increase/decrease of time can be specified with arrows or numerical values. In the example of FIG. 3 , when the “fine” mode is selected, the screw feeder 22 rotates for 12 seconds to feed sodium dichloroisocyanurate into the stock solution tank 30 . With this amount, the concentration of hypochlorous acid in the deodorizing liquid becomes 220 ppm, which is used for checking the deodorizing performance during inspection. In the "rain" mode, the rotation time of the screw feeder 22 is 10 seconds and the hypochlorous acid concentration is 200 ppm. Used during normal operation. Furthermore, in the "cloudy" mode, the rotation time of the screw feeder 22 is 4 seconds, corresponding to a hypochlorous acid concentration of 80 ppm. Thus, during operation, the hypochlorous acid concentration can be easily changed by simply switching the switch 62 to adjust the deodorizing effect.

Needless to say, the switch 62 is not essential and may be omitted.

When powdery sodium dichloroisocyanurate is dissolved in water in the undiluted solution tank 30 in this way to generate the undiluted solution of hypochlorous acid water, the undiluted solution is transferred to the sub-tank 40 . The undiluted solution tank 30 and the sub-tank 40 are connected by a second pump PP2. When the undiluted solution tank 30 is filled with a prescribed amount of water and reaches a prescribed water level, the first pump PP1 is automatically stopped, the second pump PP2 is driven, and the undiluted solution is transferred to the sub-tank 40.例文帳に追加For example, a water level sensor is placed in the undiluted solution tank 30, and when the water level rises to a predetermined upper limit, the first pump PP1 is automatically stopped. Drive two pumps PP2. Further, when the water level drops to a predetermined height corresponding to the lower limit, the second pump PP2 is stopped and the first pump PP1 is driven.

It should be noted that it is not always necessary to add sodium dichloroisocyanurate to the water in the undiluted solution tank 30 every time. For example, when the dilution tank 50 is full of water, the amount of sodium dichloroisocyanurate required to obtain a predetermined hypochlorous acid concentration is put into the undiluted solution for one time in advance, and then only water is stored in the undiluted solution tank 30, and the sub tank 40 into the dilution tank 50. As a result, a large amount of hypochlorous acid water can be efficiently prepared by reducing the operation of the screw feeder 22. - 特許庁On the other hand, in the method of charging 501 cups of sodium dichloroisocyanurate into the dilution tank 30 at once and then diluting with water, the concentration of hypochlorous acid water finally obtained in the dilution tank 50 is It is conceivable that there may be variations in Therefore, the frequency of supplying sodium dichloroisocyanurate can be adjusted according to the application and required accuracy. For example, in the case of a deodorizing liquid to be sprayed in a garbage incineration plant, a large amount of the deodorizing liquid is sprayed all at once from a large number of deodorant spray nozzles 10 over an extremely large area, so strict concentration control is generally considered unnecessary. Therefore, the above-described method of charging sodium dichloroisocyanurate all at once is sufficient. On the other hand, more accurate concentration control is required in environments where deodorization in a narrower space, such as deodorization in a meat processing plant, and sterilization performance are required in addition to deodorization. Instead of supplying sodium dichloroisocyanurate all at once, it is suitable to supply a small amount of sodium dichloroisocyanurate each time the stock solution is adjusted.
(Sub tank 40)

The sub-tank 40 has an intake end connected to the undiluted solution tank 30 via a second pump PP2, and a discharge end connected to the dilution tank 50 via a third pump PP3. Further, the sub-tank 40 may also be provided with a stirring blade or the like as necessary. Furthermore, a water level sensor may be provided in the difference tank. For example, when the water level in the sub-tank 40 rises to a predetermined height corresponding to full water, the second pump PP2 is automatically stopped and the water level in the dilution tank 50 reaches a predetermined value. If so, the third pump PP3 is driven. When the water level in the sub-tank 40 drops to a predetermined lower limit, the third pump PP3 is stopped and the driving of the second pump PP2 is permitted.

The sub-tank 40 has an intermediate size, which is larger than the undiluted solution tank 30 and smaller than the dilution tank 50 . By interposing such a sub-tank 40 between the undiluted solution tank 30 and the dilution tank 50, movement from the undiluted solution tank 30 to the dilution tank 50 can be performed smoothly. For example, when the dilution tank 50 is almost full and the undiluted solution tank 30 cannot accept the undiluted solution, the sub-tank 40 can temporarily hold the undiluted solution to continue producing the undiluted solution in the undiluted solution tank 30, thereby increasing the efficiency.
(Dilution tank 50)

The dilution tank 50 stores diluted hypochlorous acid water obtained by diluting hypochlorous acid water to a predetermined concentration as described above. The dilution tank 50 has an intake end connected to the sub-tank 40 via a third pump PP3, and a discharge end connected to the deodorant spray nozzle 10 via a fourth pump PP4. The deodorant spray nozzle 10 is located at a high place, and is connected to a high position via a pipe at a long distance, and since a plurality of deodorant spray nozzles 10 are installed, the fourth pump PP4 has a high load. It may be of a type that can correspond to , or a plurality of units may be provided. Also, a separate sub-tank 42 may be provided at a high place. Furthermore, a compressor or the like may be connected to the front stage of the deodorizing spray nozzle 10 .
(Deodorant spray nozzle 10)

The deodorizing spray nozzle 10 is connected to the dilution tank 50 via the fourth pump PP4. This deodorant spray nozzle 10 sprays diluted hypochlorous acid water onto the deodorant source. The deodorant spray nozzle 10 is provided with known pressurizing means such as a compressor for obtaining pressurized gas necessary for spraying the deodorant liquid.

The deodorizing spray nozzle 10 sprays diluted hypochlorous acid water in the form of fine particles. It is preferable to spray the diluted hypochlorous acid water so that the average particle diameter is 30 μm to 50 μm. As such a deodorant spray nozzle 10, a one-fluid nozzle that ejects a liquid by the liquid pressure of the deodorant liquid, a two-fluid nozzle that pulverizes the liquid with a gas such as air, atomizes it, and sprays it, etc. are preferably used. can.

Moreover, it is preferable that the deodorizing spray nozzle 10 sprays the diluted hypochlorous acid water in a hollow cone shape. Holocone nozzles have no internal structure and are less prone to clogging, offering the advantage of excellent maintainability.

In addition, in the deodorant liquid spray system 1000 that handles hypochlorous acid water, there is a possibility of corrosion, so it is preferable that the piping and the deodorant spray nozzle 10 are configured using corrosion-resistant materials. .

Further, adjacent to the deodorant spray nozzle 10, other nozzles may be appropriately arranged. Examples thereof include a nozzle for spraying insect repellent liquid and a perfume spray nozzle for spraying perfume described later.
(timer)

Also, the spray from the deodorant spray nozzle 10 can be set to be performed at a predetermined cycle. Such settings can be made with a timer. For example, the controller 60 is provided with a timer function. The cycle of spraying the deodorizing liquid from the deodorizing spray nozzle 10 and the amount of one spray, i.e., the spraying time, are set according to the volume of the area to be deodorized, the degree of odor, and the like. In the example of FIG. 1, the timer is set so that the diluted hypochlorous acid water is sprayed from the deodorant spray nozzle 10 for 3 minutes every 30 minutes.
[Embodiment 2]

Also, the deodorant liquid spray system can add other scents in addition to the function of deodorizing bad odors. Such an example is shown in FIG. 4 as a deodorizing liquid spray system 2000 according to the second embodiment. The deodorant liquid spray system 2000 shown in this figure includes a hopper 20, a stock solution tank 30, a sub-tank 40, a dilution tank 50, a deodorant spray nozzle 10, first to fifth pumps PP1 to PP5, and perfume. A tank 70, a perfume spray nozzle 80, and a controller 60 for controlling these are provided. The same reference numerals are given to the same members as in the first embodiment described above, and detailed description thereof will be omitted as appropriate.

The deodorizing liquid spray system 2000 according to the second embodiment sprays perfume from the deodorizing spray nozzle 10 in addition to spraying the deodorizing liquid from the deodorizing spray nozzle 10 . As a result, while weakening the odor by removing the bacteria that cause the odor with the deodorizing liquid, adding fragrance to the chlorine odor of the hypochlorous acid system suppresses the odor of the diluted hypochlorous acid water that is sprayed, and deodorizes the odor. It is possible to improve the environment for workers who work in harsh environments that require As the perfume, those capable of masking odors and neutralizing and deodorizing odors can be appropriately employed. For masking, for example, a citrus fragrance is preferable. This makes it possible to provide a refreshing citrus scent. Specifically, limonene, which is easily available and inexpensive, is preferred. Limonene is a typical monocyclic monoterpene found in citrus peels. Yuzu flavoring may be used. By using citron flavoring, which has a high scent retention effect, it is possible to provide a comfortable environment in terms of odor.

The deodorizing liquid spray system 2000 of FIG. 4 includes a perfume tank 70, a fifth pump PP5, and a perfume spray nozzle 80 in addition to the configuration of FIG. The perfume tank 70 stores perfume. The perfume tank 70 is connected with the perfume spray nozzle 80 . Between the perfume tank 70 and the perfume spray nozzle 80, a valve, a compressor, a sub-tank and the like are connected as required.

The perfume spray nozzle 80 sprays the perfume supplied from the perfume tank 70 . As the perfume spray nozzle 80, a nozzle similar to the deodorant spray nozzle 10 (for example, a two-fluid nozzle) can be used. By adding a separate nozzle for spraying perfume in this way, it becomes possible to add perfume to the existing deodorant liquid spray system.

The perfume spray nozzle 80 is preferably arranged so as to overlap the spray direction of the deodorant spray nozzle 10 . By spraying the perfume in addition to the spray of the diluted hypochlorous acid water from the deodorant spray nozzle 10 in this way, it is possible to cover the smell of the hypochlorous acid water with a citrus smell. In addition, by intersecting the spray axis, droplets of the deodorizing liquid and the droplets of the perfume collide with each other at the intersection and are agitated, and an effect of more uniformly dispersing the deodorant liquid and the perfume can be expected.

Note that the perfume spray nozzle 80 and the deodorant spray nozzle 10 may be integrated. For example, by using a four-fluid nozzle, different liquids, here, deodorizing liquid and fragrance, may be sprayed from a common nozzle. With this configuration, the number of nozzles to be installed can be reduced, and the timing of spraying the deodorizing liquid and the perfume can be set collectively, thereby obtaining the advantage of simplifying the design and operation.
[Embodiment 3]

Alternatively, before spraying the deodorizing liquid with the deodorizing spray nozzle 10, a perfume tank may be connected to the piping of the deodorizing liquid. As a result, a deodorant liquid in which hypochlorous acid water and perfume are mixed in advance is sprayed. With this method, the perfume can be added to the deodorant liquid most simply. Such an example is shown in FIG. 6 as a deodorizing liquid spray system 3000 according to the third embodiment. The deodorant liquid spray system 3000 shown in this figure is composed of a deodorant liquid spray system 3000A that sprays the deodorant liquid on the garbage pit PT side and a deodorant liquid spray system 3000B that sprays the deodorant liquid on the platform PF side. ing. The deodorizing liquid spray system 3000A on the garbage pit PT side includes the same deodorizing spray nozzle 10 as in FIG. 1. On the other hand, the deodorizing liquid spray system 3000B on the platform PF side also similarly includes a deodorizing spray nozzle 10B, a dilution tank 50B, and the like. In this example, the dilution tank 50A and the dilution tank 50B are connected and the deodorizing liquid is generated by the common hypochlorous acid water generator 1 and sprayed onto the platform PF and the garbage pit PT respectively.

Further, a perfume tank 70 is provided, and the perfume tank 70 is connected only to the pipe 90B of the deodorant liquid spray system 3000B on the platform PF side. In other words, the perfume tank 70 is not connected to the pipe 90A of the deodorizing liquid spray system 3000 on the garbage pit PT side. In other words, on the side of the platform PF where garbage trucks gather and workers are directly exposed to the bad smell, perfume is sprayed, while on the side of the garbage pit PT which is basically isolated and there are no workers, , Not sprayed with perfume. As a result, while improving the environment by adding perfume to the working environment where workers are present, by not adding perfume to environments where there are basically no workers, the amount of perfume used can be reduced and running costs can be reduced. Efficient operation is achieved by suppressing
(Hypochlorous acid water generation unit 1)

Here, the details of the hypochlorous acid water generating unit 1 are shown in FIG. The hypochlorous acid water generator 1 can be applied not only to the third embodiment but also to the first and second embodiments. The hypochlorous acid water generating section 1 shown in FIG. The undiluted solution tank 30 is arranged in the sub-tank 40 and has an open top end. Therefore, when the undiluted solution tank 30 is full, the sub-tank 40 is filled with the overflowing undiluted solution. The output end of the hopper 20 is arranged on the upper end side of the stock solution tank 30 as in FIG. Further, the bottom surface of the stock solution tank 30 is inclined, so that the powdery sodium dichloroisocyanurate supplied from the hopper 20 is easily collected at the deepest inclined position (right end in FIG. 7). Also, by arranging the supply port of water, which is a solvent for diluting sodium dichloroisocyanurate, at this position, powdery sodium dichloroisocyanurate is collected in one place and easily dissolved. In this way, powdery sodium dichloroisocyanurate is dissolved in water in the stock solution tank 30, and the stock solution of hypochlorous acid water is accumulated in the stock solution tank 30. When the stock solution tank 30 is full, the overflowing stock solution is accumulated in the sub-tank 40. .

As described above, powdery sodium dichloroisocyanurate is not constantly supplied to the stock solution tank 30 . By supplying only water containing no sodium dichloroisocyanurate to the undiluted solution tank 30 and putting it into the sub-tank 40, the concentration of sodium dichloroisocyanurate stored in the sub-tank 40 can be diluted.

A third pump PP3 is connected to the lower portion of the sub-tank 40 for sending the liquid stored therein to the dilution tank 50. As shown in FIG. Furthermore, an upper limit switch 41A and a lower limit switch 41B are arranged in the subtank 40 as a water level sensor 41 for detecting the water level in the subtank 40 . The upper limit switch 41A is arranged at the upper limit position of the water level in the sub-tank 40, and the lower limit switch 41B is arranged at the lower limit position of the water level. As a result, the operation of the third pump PP3 can be controlled to control the amount of concentrate in the sub-tank 40. FIG. For example, when the upper limit switch 41A detects that the water level in the sub-tank 40 has reached the upper limit, the supply of water or the like to the stock solution tank 30 is stopped, and the third pump PP3 is driven to pump out the liquid stored in the sub-tank 40. Dispense to dilution tank 50 . On the other hand, when the lower limit switch 41B detects that the water level in the sub-tank 40 has reached the lower limit, the third pump PP3 is stopped and the supply of water and sodium dichloroisocyanurate to the undiluted solution tank 30 is resumed. store liquid in In this manner, the hypochlorous acid water generating unit 1 uses the undiluted solution tank 30 and the sub-tank 40 to generate hypochlorous acid water deodorizing liquid.

In this manner, the diluted hypochlorous acid water is sprayed in a predetermined cycle to remove the odor-causing bacteria, thereby enabling efficient deodorization.

The deodorizing liquid spraying system, deodorizing liquid spraying device, and deodorizing liquid spraying method of the present disclosure are used for deodorizing waste disposal facilities such as garbage incineration plants, poultry droppings processing facilities, meat processing plants, dairy product factories, etc. In addition, it can be suitably used for deodorizing at industrial waste treatment facilities, sewage/human waste treatment facilities, livestock farming, feed and fertilizer handling sites, and the like.

1000, 2000, 3000, 3000A, 3000B Deodorant liquid spray system 100 Deodorant liquid supply device 2 Duct 5 Spray means 7 Reaction chambers 10, 10B Deodorant spray nozzle 20 Hopper 22 Screw feeder 30 Undiluted solution tank 40 Sub-tank 41 Water level sensor; 41A Upper limit switch; 41B Lower limit switch;
42 Subtanks 50, 50B Dilution tank 60 Controller 61 Touch panel 62 Switch 70 Perfume tank 80 Perfume spray nozzles 90A, 90B Piping PP1 to PP5 First pump to fifth pump VV Valve W Waste T...Track PF...Platform PT...Garbage pit A...Throwing part

Claims (13)

It is installed at any site that handles waste treatment facilities, poultry manure treatment facilities, meat processing plants, dairy products factories, industrial waste treatment facilities, sewage and night soil treatment facilities, livestock farming, feed and fertilizer, Spray deodorant against the odor sourceforA deodorizing liquid spray system,
a dilution tank for storing hypochlorous acid water with a hypochlorous acid concentration of 30 ppm or more;
A deodorizing spray nozzle connected to the dilution tank for spraying diluted hypochlorous acid water onto a deodorizing source, and controlling the operation of spraying the diluted hypochlorous acid water from the deodorizing spray nozzle at a predetermined timing. timer and,
A stock solution tank connected to the dilution tank and storing high-concentration hypochlorous acid water before dilution;
a screw feeder for supplying sodium dichloroisocyanurate supplied in powder form to the undiluted solution tank;
equipped with,
The hypochlorous acid water stored in the dilution tank is generated by dissolving the sodium dichloroisocyanurate supplied in powder form.deodorant liquid spray system. The deodorant liquid spray system according to claim 1 ,
A deodorizing liquid spray system configured to adjust the concentration of hypochlorous acid in the dilution tank by controlling the amount of rotation of the screw feeder. The deodorant liquid spray system according to claim 1 or 2 ,
A deodorant liquid spray system in which the deodorant spray nozzle sprays diluted hypochlorous acid water in a hollow cone shape. The deodorant liquid spray system according to any one of claims 1 to 3 ,
A deodorizing liquid spray system in which the concentration of hypochlorous acid in the dilution tank is 100 ppm or more. The deodorant liquid spray system according to any one of claims 1 to 4 ,
A deodorizing liquid spray system in which the concentration of hypochlorous acid in the dilution tank is 30 ppm to 200 ppm. The deodorant liquid spray system according to any one of claims 1 to 5 ,
A deodorizing liquid spray system wherein the deodorant spray nozzle is controlled to spray diluted hypochlorous acid water with an average particle size of 30 μm to 50 μm. The deodorant liquid spray system according to any one of claims 1 to 6 ,
A deodorizing liquid spraying system in which the timer is controlled to spray diluted hypochlorous acid water from the deodorizing spray nozzle for 3 minutes every 30 minutes. The deodorizing liquid spray system according to any one of claims 1 to 7 , further comprising a perfume tank for storing perfume,
A deodorant liquid spraying system comprising a perfume spray nozzle connected to the perfume tank and spraying the perfume. The deodorant liquid spray system according to claim 8 ,
A deodorant liquid spray system, wherein the perfume spray nozzle is configured to overlap the spray direction of the deodorant spray nozzle. The deodorant liquid spray system according to claim 8 or 9 ,
A deodorizing liquid spray system, wherein the perfume is limonene. It is installed at any site that handles waste treatment facilities, poultry manure treatment facilities, meat processing plants, dairy products factories, industrial waste treatment facilities, sewage and night soil treatment facilities, livestock farming, feed and fertilizer, A deodorizing liquid supply device for supplying a deodorizing liquid to a bad smell source,
a hopper for storing powdery sodium dichloroisocyanurate;
a stock solution tank for storing hypochlorous acid water in which the sodium dichloroisocyanurate is dissolved in the hopper;
a dilution tank that dilutes the hypochlorous acid water supplied from the stock solution tank to a hypochlorous acid concentration of 30 ppm or more;
a pump connected to the dilution tank and connected to a deodorant spray nozzle for spraying diluted hypochlorous acid water onto a deodorant source;
a timer for controlling the operation of spraying diluted hypochlorous acid water from the deodorant spray nozzle at a predetermined timing;,
a screw feeder that supplies the sodium dichloroisocyanurate from the hopper to the undiluted solution tank;
A deodorant liquid supply device. It is installed at any site that handles waste treatment facilities, poultry manure treatment facilities, meat processing plants, dairy product factories, industrial waste treatment facilities, sewage and night soil treatment facilities, livestock farming, feed and fertilizer, A deodorizing liquid spraying method for spraying a deodorizing liquid against a malodor source,
powdered sodium dichloroisocyanurate, from the hopper to the undiluted solution tank with a screw feederDissolve to generate hypochlorous acid water,SaidThe process of storing in the undiluted solution tank,
A step of diluting the hypochlorous acid water in the stock solution tank to adjust the hypochlorous acid concentration to 30 ppm to 200 ppm;
a step of spraying the diluted hypochlorous acid water from a deodorant spray nozzle onto the deodorant source;
A deodorizing liquid spraying method comprising: The deodorizing liquid spraying method according to claim 12 ,
A method of spraying a deodorizing liquid, wherein the step of spraying diluted hypochlorous acid water from the deodorizing spray nozzle is repeated at a predetermined cycle.

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