KR102507354B1 - Apparatus and method for producing nano-particle deposited anti-micobial air filer media - Google Patents

Abstract

The present invention relates to an apparatus and method for manufacturing an antibacterial filter medium in which nanoparticles are deposited. In the present invention, nanoparticles are generated using a spark discharge generated between at least a pair of electrodes made of nanoparticle material, and the generated nanoparticles are supplied to a deposition apparatus using dry gas air as a carrier gas, , It is characterized in that the nanoparticles are deposited on the filter medium by spraying a drying gas containing the nanoparticles on the filter medium transported by the conveying device in the deposition apparatus.

Description

Apparatus and method for manufacturing antibacterial filter media deposited with nanoparticles {APPARATUS AND METHOD FOR PRODUCING NANO-PARTICLE DEPOSITED ANTI-MICOBIAL AIR FILER MEDIA}

The present invention relates to an apparatus and method for manufacturing an antibacterial filter medium on which nanoparticles are deposited, and more particularly, to a manufacturing method capable of improving the antibacterial performance of a filter medium by depositing nanoparticles having an antibacterial function on the filter medium, and It is an invention related to a manufacturing apparatus.

As the pollution of the atmospheric environment becomes serious, the number of cases in which air purifiers equipped with air filters for removing fine dust or harmful gases are installed and used indoors has recently increased.

In particular, with the recent outbreak of viral diseases, there is an increasing demand for multi-functional antibacterial air filters capable of removing various microorganisms such as bacteria, fungi, and viruses present in the air in addition to existing dust collection and deodorization functions. Since bacteria, microorganisms, and viruses have a smaller physical size compared to fine dust, general filtration filters are insufficient to remove them. In addition, even if these microorganisms are filtered through a filter, unlike general suspended particles, suspended microorganisms proliferate again on the surface of the filter medium collected according to environmental conditions, and biological volatile organic chemicals (MVOCs) generated as they decay There is a high risk of causing secondary contamination, such as odor generation.

Therefore, in Patent Document 1, in order to solve this problem, a method of suppressing the growth of microorganisms on the filter medium by applying a liquid antibacterial agent to the surface of the filter medium is proposed. In the case of an antibacterial filter manufactured in this way, the antibacterial material coated on the filter medium effectively suppresses secondary contamination and odor caused by MVOC, which may occur due to the propagation and detachment of microorganisms on the filter, without additional operating cost. It is possible.

however. It is difficult to effectively apply an antibacterial coating to a filter medium, which is a porous carrier, by the dipping process disclosed in Patent Document 1. Therefore, the above manufacturing method is applied only to a pre-filter or a medium-grade filter that is relatively easy to support. In the case of a pre-filter or medium-grade filter, the filtration efficiency is lower than that of a HEPA filter, so the microbial trapping performance is deteriorated. In addition, there is a high possibility that the filter medium is damaged during the coating process and the subsequent drying process of the filter medium, and there is a limit to uniformly applying the antibacterial material to the surface of the filter medium. In addition, in addition to the coating process itself being a batch process, considerable time and energy are consumed for drying, resulting in manufacturing cost and time-consuming problems.

Patent Document 1: Korean Patent Registration No. 10-1986234

The present invention has been made to solve the above problems of the prior art, and by depositing antibacterial nanoparticles generated by spark discharge on a filter medium, it is possible to manufacture an antibacterial filter having high antibacterial performance at a relatively low manufacturing cost and time. It is an object of the present invention to provide a manufacturing apparatus and manufacturing method that can be used.

In order to solve the above problems, the antibacterial filter medium device on which nanoparticles are deposited according to the present invention is made of nanoparticle material and generates nanoparticles by using a spark discharge generated between at least one pair of electrodes. generator; a dry air inlet device for injecting dry air into the nanoparticle generating device; a conveying device for supplying filter media; It is characterized in that it includes a deposition device for depositing nanoparticles generated by the nanoparticle generating device onto the filter media by spraying them together with dry air onto the filter media being transported by the transport device.

Preferably, the nanoparticle generator may further include an aggregation chamber for aggregating nanoparticles generated by spark discharge with each other by attraction between electric charges of the particles.

Preferably, the nanoparticle generator may further include a first discharge device generating positively charged nanoparticles by spark discharge and a second discharge device generating negatively charged nanoparticles by spark discharge.

Preferably, the nanoparticle generating device may further include a charging device for additionally charging the nanoparticles generated by the first discharge device and the second discharge device with positive or negative charges.

Preferably, the coagulation chamber may further include a heating device for increasing coagulation efficiency by heating air in the chamber.

Preferably, the coagulation chamber may further include an alternating current field generator for generating an alternating current field within the chamber to increase coagulation efficiency.

Preferably, the nanoparticles may be made of copper (Cu) or silver (Ag).

Preferably, the dry air may be at least one selected from nitrogen, argon, helium, or a mixture thereof.

Preferably, the dry air introduction device may further include a flow control device for controlling the flow rate of dry air introduced into the nanoparticle generator.

Preferably, the discharge device includes a discharge chamber; a pair of electrodes positioned in the discharge chamber and facing each other with a predetermined gap therebetween; An electric circuit electrically connected to a pair of electrodes and composed of a resistor, a capacitor, and a high voltage power supply.

Preferably, the deposition apparatus includes: a deposition chamber having an inlet through which the filter medium transported by the transport apparatus is introduced into the interior and an outlet through which the filter medium is taken out to the outside; a spraying device for spraying the nanoparticles generated by the nanoparticle generating device toward the treatment surface of the filter medium; and an exhaust device for discharging the atmosphere in the deposition chamber.

A method for manufacturing an antibacterial filter medium deposited with nanoparticles according to the present invention for solving the above problems includes generating nanoparticles by generating a spark discharge between at least one pair of electrodes made of nanoparticles; supplying the generated nanoparticles to a deposition chamber using dry air as a carrier gas; supplying a filter medium into the deposition chamber; and spraying and depositing dry air containing nanoparticles on the treatment surface of the filter medium moving in the deposition chamber.

Preferably, before supplying the generated nanoparticles to the deposition chamber, a step of aggregating the nanoparticles generated by the spark discharge with each other by attraction between electric charges of the particles may be further included.

Also, preferably, before supplying the generated nanoparticles to the deposition chamber, a step of additionally charging the nanoparticles generated by the spark discharge may be further included.

According to the present invention, antibacterial nanoparticles generated by spark discharge can be deposited on the surface of an electrostatic HEPA filter, which has excellent virus filtration performance and at the same time can effectively sterilize viruses or microorganisms filtered on the surface of the filter medium. filters can be made.

In addition, according to the present invention, nanoparticles can be deposited on a filter medium being transported by a conveyor roller, etc., so that continuous filter manufacturing is possible, and thus manufacturing time can be reduced compared to conventional batch manufacturing methods.

In addition, according to the present invention, unlike the conventional wet process, a filter drying process is not required, so energy or time required for filter drying can be saved, and the filter can be manufactured in a short time and at low manufacturing cost.

In addition, according to the present invention, it is possible to spray the antibacterial nanoparticles generated by the spark discharge on the filter medium using the dry gas as the carrier gas. Dispensing becomes possible.

1 is a configuration diagram showing an apparatus for manufacturing an antibacterial filter medium in which nanoparticles are deposited according to a preferred embodiment of the present invention.
Figure 2 is a block diagram showing the discharge device of the nanoparticle generator of the antibacterial filter medium manufacturing apparatus in which the nanoparticles are deposited shown in FIG.
FIG. 3 is a block diagram showing an embodiment of a nanoparticle generator of the antibacterial filter medium manufacturing apparatus on which nanoparticles are deposited shown in FIG. 1; FIG.
Figure 4 is a block diagram showing another embodiment of the nanoparticle generating device of the antibacterial filter medium manufacturing apparatus shown in Figure 1 deposited nanoparticles.
5 is a flow chart showing a method for manufacturing an antibacterial filter medium deposited with nanoparticles according to a preferred embodiment of the present invention.

Terms or words used in this specification and claims should not be limited to their usual or dictionary meanings, and the principle that the inventor can appropriately define the concept of terms in order to explain his or her invention in the best way. Based on this, it should be interpreted as a meaning and concept consistent with the technical spirit of the present invention. Therefore, since the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention, various equivalents that can replace them at the time of the present application It should be understood that there may be water and variations. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing an apparatus for manufacturing an antibacterial filter medium in which nanoparticles are deposited according to a preferred embodiment of the present invention.

Referring to FIG. 1, an apparatus for manufacturing an antibacterial filter medium on which nanoparticles are deposited according to a preferred embodiment of the present invention includes a dry air introduction device 100, a nanoparticle generator 200, a deposition device 300, and It is configured to include a conveying device 400 .

The dry air introducing device 100 is a device for supplying a carrier gas for transporting nanoparticles generated by the nanoparticle generating device 200 to be described later to the deposition device 300 . As shown in FIG. 1, preferably, the dry air inlet device 100 includes a dry air inlet pipe 110, a compressor 120, an air dryer 130, a filter 140, a valve 150, It may be configured to include a flow sensor 160.

The dry air inlet pipe 110 has one end connected to the compressor 120 and the other end connected to the nanoparticle generating device 200, so that the air sucked by the compressor 120 is transferred to the nanoparticle generating device 200. It performs the function of a transmission pipe that transmits.

Meanwhile, on the path of the dry air inlet pipe 110, the air dryer 130, the filter 140, the valve 150, and the flow rate sensor 160 may be sequentially disposed. The air dryer 130 is a device for forming dry air by removing moisture from compressed air sucked in by the compressor 120 . Preferably, a heating dryer that heats and dries compressed air or an adsorption dryer that adsorbs and removes moisture may be used as the air dryer 130 . The filter 140 is a device for removing foreign substances included in the dry air that has passed through the air dryer 130 . Preferably, a HEPA filter capable of filtering 99.97% or more of particles having a size of 0.3 μm may be used as the filter 140 . The valve 150 is a device for controlling the flow rate of dry air supplied to the nanoparticle generator 200 . As will be described later, as the flow rate of dry air supplied to the nanoparticle generator 200 increases, the size of nanoparticles generated by reducing aggregation between nanoparticles generated in the nanoparticle generator 200 increases. will decrease In addition, as the flow rate of dry air increases, stable generation of spark discharge in the nanoparticle generator 200 may be difficult. Therefore, it is necessary to appropriately adjust the opening of the valve 150 to secure the target particle size and discharge stability. At this time, the preferred dry air flow rate is about 30 lpm. Meanwhile, preferably, as the valve 150, an electronic expansion valve may be used. In addition, preferably, a flow sensor 160 for measuring the flow rate of dry air passing through the dry air inlet pipe 110 may be provided at the rear end of the valve 150 . The operator may check the measurement result of the flow sensor 160 and manually adjust the opening degree of the valve 150, or use a controller (not shown) to adjust the opening degree of the electronic expansion valve according to the measurement result of the flow sensor 160. It can also be automatically controlled. On the other hand, as the dry air, external air sucked into the compressor 120 may be used, or one or more gases selected from inert gases such as nitrogen, argon, and helium or a mixture thereof may be used to increase discharge efficiency. may be In this case, instead of the compressor 120, gas may be supplied from a tank into which an inert gas is charged.

The nanoparticle generator 200 is a device that generates nanoparticles using at least one pair of electrodes made of nanoparticle materials. A specific configuration of the nanoparticle generator 200 will be described in detail later with reference to FIGS. 2 to 4 .

The transport device 400 is a device for supplying the filter medium 10 to the inside of a deposition device 300 to be described later. Preferably, the transport device 400 is composed of a plurality of conveyor rollers 410, as shown in FIG. 1, so that the filter media 10 is placed inside the deposition device 300 during the deposition process of the filter media 10. supplied continuously. The filter medium 10 to be transported may preferably be a filter medium used in a fibrous electrostatic filter, and is preferably a filter medium of an electrostatic HEPA filter in order to maximize the filtration performance of viruses or microorganisms.

The deposition apparatus 300 sprays dry air containing nanoparticles generated by the nanoparticle generating apparatus 200 onto the treatment surface of the filter medium continuously supplied from the conveying apparatus 400 to form a layer on the filter medium 10. It is a device for depositing nanoparticles. Preferably, as shown in FIG. 1, the deposition apparatus 300 is configured in the form of a hollow deposition chamber having an inlet and an outlet through which the filter medium supplied from the transfer apparatus 400 enters and exits. A spray nozzle 310 for spraying dry air containing nanoparticles may be provided above the inside of the 300 . Meanwhile, although FIG. 1 shows that nanoparticles are sprayed only on the upper surface of the filter medium 10, the embodiment of the present invention is not limited thereto, and nanoparticles can be sprayed on both the upper and lower surfaces of the filter medium 10, , In this case, the spray nozzle 310 may be provided on both the top and bottom of the deposition chamber 300 . On the other hand, when the filter medium is an electrostatic filter medium having static electricity, the nanoparticles may be more firmly attached to the surface of the filter medium due to the electrostatic attraction between the filter medium and the nanoparticles.

Also, as shown in FIG. 1 , preferably, the deposition apparatus 300 may include a discharge mechanism for discharging dry air on which the deposition on the filter medium 10 is completed to the outside. The exhaust mechanism includes an exhaust fan 320 for exhausting the atmosphere in the deposition chamber 300 to the outside, and a connection between the exhaust fan 320 and the deposition chamber 300 to remove dry air discharged from the deposition chamber 300. It may include a dry air discharge pipe 330 constituting the passage and an exhaust treatment system 340 for removing nanomaterials included in the dry air before being discharged to the outside through the dry air discharge pipe 330 .

Hereinafter, with reference to FIGS. 2 to 4 , a specific configuration of the nanoparticle generator 200 shown in FIG. 1 will be described in detail.

FIG. 2 is a block diagram showing the discharge device 210 of the nanoparticle generating device 200 of the antibacterial filter medium manufacturing apparatus in which the nanoparticles shown in FIG. 1 are deposited, and FIG. 3 is a block diagram showing the nanoparticles shown in FIG. 4 is a block diagram showing an embodiment of the nanoparticle generator 200 of the antibacterial filter medium manufacturing apparatus, and FIG. It is a block diagram showing another embodiment.

3 and 4, the nanoparticle generator 200 according to a preferred embodiment of the present invention includes a discharge device 210 and a discharge device 210 for generating nanoparticles by spark discharge. A charging device 220 for additionally charging the nanoparticles generated by the positive charge or negative charge and an aggregation chamber 230 for aggregating the nanoparticles charged by passing through the charging device 220 to each other by the attraction between the charges of the particles can be configured to include

The discharge device 210 applies a high voltage between at least one pair of electrodes 212 disposed opposite to each other and made of a predetermined metal material, provided inside the chamber 211 where sparks are generated, and This device converts the surface of the electrode 212 into nanoparticles by evaporating it.

In FIG. 2, as a pair of electrodes 212 used in the discharge device 210, a rod-to-rod type electrode in which the electrode 212 has a cylindrical shape is disclosed, but The present invention is not limited to the above-mentioned content, that is, in addition to the rod-to-rod type electrode as a pair of electrodes 212, a wire-to-rod type electrode in which one electrode has a wire type is also used. It is possible, and a wire-to-wire type electrode in which both electrodes have a wire type is also possible. On the other hand, since the purpose of the discharge device 310 in the present invention is to generate nanoparticles by evaporating the surface of the electrode 212 of a specific material through spark discharge, the material of the electrode 212 is a metal having antibacterial performance. It is desirable to be Therefore, the material of the electrode 212 is preferably a metal having antibacterial properties against viruses or microorganisms, such as copper (Cu) or silver (Ag).

As shown in FIG. 2 , the chamber 211 includes an inlet through which dry air supplied from the dry air introduction device 100 flows and an outlet through which dry air containing nanoparticles generated by spark discharge is discharged. provide

Meanwhile, referring to FIG. 2 , an electric circuit for constituting the discharge device 210 may be a constant current circuit composed of a high voltage supply source 213, a resistor 214, and a capacitor 215.

At this time, when the capacity of the capacitor 215 of the constant current circuit is C and the discharge voltage (V _d ) is applied by the high voltage supply source 213, the spark energy (E _spark ) required for spark discharge is as follows Same as Formula 1.

....식1

....Formula 1

In addition, the discharge frequency (f _spark ) at this time is as shown in Equation 2 below.

...식2

...Equation 2

By appropriately controlling the spark energy and discharge frequency of Equations 1 and 2, it is possible to appropriately control the size and concentration of nanoparticles generated by the spark discharge.

In addition, nanoparticles generated by the discharge device 210 may have a specific charge state according to the characteristics (positive voltage or negative voltage) of the voltage applied to the electrode 212 . In this regard, in the embodiment shown in FIG. 4 , the discharge device 210 constitutes a plurality of discharge devices of the first discharge device 210a and the second discharge device 210a. In this case, a positive voltage may be applied to the first discharge device 210a and a negative voltage may be applied to the second discharge device 210b so that charge characteristics of the nanoparticles generated by the two discharge devices may be reversed. In this case, aggregation may be promoted by electrostatic attraction between nanoparticles that are oppositely charged in the aggregation chamber 230 to be described later, and thus nanoparticles having a relatively large size may be generated.

The charging device 220 is installed on the downstream side of the discharge device 210 to additionally charge the nanoparticles generated by the discharge device 210 . The charging device 220 may preferably be an ionizer that generates ions having a specific charge state. For example, as shown in FIG. 3, the charging device 220 generates a large amount of positively or negatively charged ions, and causes the generated ions to be attached to the nanoparticles generated by the discharge device 210, Nanoparticles can be further charged. As the charge amount of the nanoparticles increases while passing through the charging device 220, the electrostatic attraction also increases, so that the size of the nanoparticles can be effectively increased in the aggregation chamber 230 described later.

On the other hand, as in the embodiment shown in FIG. 4, when the discharge device 210 is composed of a plurality of discharge devices of the first discharge device 210a and the second discharge device 210a, the charging device 220 also It consists of two charging devices (220a, 220b) according to the charge device (220a, 220b), and the charge state of the ion generated in each of the charging devices (220a, 220b) is reversed, so that the nanoparticles delivered from the discharge device are in each charged state Additional charges can be added to suit.

The aggregation chamber 230 is preferably a hollow chamber, and may be configured such that the nanoparticles included in the dry gas stay in the chamber for a certain period of time. Preferably, in order to increase the aggregation efficiency between nanoparticles, a heating mechanism such as a thermoelectric element (not shown) may be provided in the aggregation chamber 230 to heat the atmosphere in the aggregation chamber 230 . Alternatively, a known electric field generator (not shown) capable of generating an alternating current electric field in the coagulation chamber 230 may be provided to promote the movement of nanoparticles in the coagulation chamber 230, thereby increasing the aggregation efficiency. .

Hereinafter, with reference to FIG. 5, a method for manufacturing an antibacterial filter medium deposited with nanoparticles according to a preferred embodiment of the present invention will be described in detail.

5 is a flowchart illustrating a method for manufacturing an antibacterial filter medium deposited with nanoparticles according to a preferred embodiment of the present invention.

As shown in FIG. 5 , nanoparticles are first generated by spark discharge for the manufacture of the filter medium 10 (S10). To this end, nanoparticles having antibacterial properties are generated by evaporating the surface of the electrode 212 through spark discharge in the discharge device 210 of the nanoparticle generating device 200 . Meanwhile, the generated nanoparticles are mixed in the dry air supplied to the discharge device 210 through the dry air introducing device 100 and supplied to the charging device 220 through a pipe not shown.

After generating the nanoparticles by spark discharge, the nanoparticles are charged by the charging device 220 to increase the amount of charge of the nanoparticles. Basically, the nanoparticles generated by the spark discharge are charged in a specific polarity according to the voltage characteristics applied during the spark discharge. However, in order to generate nanoparticles of a target size through the aggregation process described later, it is necessary to increase the amount of charge of the nanoparticles. Therefore, the nanoparticles are additionally charged by the charging device 220 . Preferably, the charging device 220 increases the amount of charge of the nanoparticles by generating ions of a specific polarity to attach the ions to the nanoparticles.

After additionally charging the nanoparticles, the nanoparticles are agglomerated in an aggregation device provided on the downstream side of the charging device 220 (S30). Since nanoparticles generated by spark discharge are small in size, it may be difficult to obtain nanoparticles in an amount and size sufficient to obtain a target antibacterial performance. Therefore, the nanoparticles are agglomerated with each other by electrostatic attraction to generate nanoparticles of a target size. In order to increase the aggregation effect, the atmosphere inside the aggregation chamber 300 may be heated using a heater or the like, or an AC electric field may be formed within the aggregation chamber 300 to promote the behavior of the nanoparticles in the chamber.

The aggregated nanoparticles are supplied (S40) to the deposition apparatus 300 using the above-mentioned dry air as a carrier gas, and sprayed onto the treatment surface of the filter medium 10 supplied into the deposition apparatus 300, thereby filtering the filter medium. It is deposited (S50) on the treated surface of (10). Thereafter, the filter medium on which the nanoparticles are deposited is bent and processed into a filter form, so that it can be used in an air cleaner or the like.

According to the antibacterial filter medium manufacturing method and manufacturing apparatus according to the present invention described above, instead of dipping a liquid antibacterial agent on the filter surface as in the prior art, antibacterial nanoparticles generated by spark discharge are deposited on the surface of the electrostatic HEPA filter. Therefore, it can also be applied to electrostatic HEPA filters with excellent filtration efficiency. Accordingly, it is possible to manufacture a filter capable of effectively sterilizing viruses or microorganisms filtered on the surface of the filter medium while having excellent virus filtration performance.

In addition, according to the antibacterial filter medium manufacturing method and manufacturing apparatus according to the present invention, by spraying the nanoparticles on the filter medium being transported by the conveyor roller, the nanoparticles can be deposited on the filter medium during movement, thereby enabling continuous filter manufacturing. possible. Therefore, the manufacturing time can be reduced compared to the conventional batch-type manufacturing method.

In addition, according to the antibacterial filter medium manufacturing method and manufacturing apparatus according to the present invention, unlike the conventional wet process, a filter drying process is not required, so energy or time required for filter drying can be saved, and thus a filter can be manufactured in a short time and at low manufacturing cost. manufacturing becomes possible.

In addition, according to the antibacterial filter medium manufacturing method and manufacturing apparatus according to the present invention, it is possible to spray antibacterial nanoparticles generated by spark discharge on the filter medium using dry gas as a carrier gas, in contrast to the conventional wet process , it becomes possible to uniformly apply the nanoparticles to the surface of the filter medium.

100: dry air inlet device 110: dry air inlet pipe
120: compressor 130: air dryer
140: filter 150: valve
160: flow sensor 200: nanoparticle generating device
210: discharge device 210a: first discharge device
210b: second discharge device 211: chamber
212 electrode 213 high voltage source
214: resistor 215: capacitor
220: charging device 230: coagulation chamber
300: deposition device 310: spray nozzle
320: exhaust fan 330: dry air discharge piping
340 Exhaust treatment system 400 Transport device
410: conveyor roller

Claims (14)

a nanoparticle generating device made of nanoparticle material and generating nanoparticles by using a spark discharge generated between at least one pair of electrodes;
a dry air inlet device for injecting dry air into the nanoparticle generating device;
a conveying device for supplying filter media;
And a deposition device for spraying the nanoparticles generated by the nanoparticle generating device together with the dry air onto a filter medium being transported by the conveying device to deposit them on the filter medium,
The nanoparticle generator,
A first discharge device generating positively charged nanoparticles by spark discharge;
Further comprising a second discharge device generating negatively charged nanoparticles by spark discharge;
The nanoparticle generator,
An aggregation chamber for aggregating nanoparticles oppositely charged by the first discharge device and the second discharge device by electrostatic attraction between nanoparticles,
The coagulation chamber further comprises an AC electric field generator for generating an AC electric field in the chamber to increase coagulation efficiency. delete delete The method of claim 1,
The nanoparticle generator,
An antibacterial filter medium manufacturing device deposited with nanoparticles, further comprising a charging device for additionally charging the nanoparticles generated by the first discharge device and the second discharge device with positive or negative charges. The method of claim 1,
The coagulation chamber further comprises a heating device for heating air in the chamber to increase coagulation efficiency. delete The method of claim 1,
The nanoparticles are made of copper (Cu) or silver (Ag), the antibacterial filter medium manufacturing device deposited with nanoparticles. The method of claim 1,
The dry air is at least one selected from nitrogen, argon, helium, or a mixture thereof, nanoparticle-deposited antibacterial filter medium manufacturing apparatus. The method of claim 1,
The dry air inlet device further comprises a flow control device for controlling the flow rate of the dry air introduced into the nanoparticle generating device, nanoparticle deposited antibacterial filter medium manufacturing device. The method of claim 1,
The first discharge device and the second discharge device,
discharge chamber;
the pair of electrodes located in the discharge chamber and disposed facing each other with a predetermined gap therebetween;
An apparatus for manufacturing an antibacterial filter medium on which nanoparticles are deposited, consisting of an electric circuit electrically connected to the pair of electrodes and composed of a resistor, a capacitor and a high voltage power supply. The method of claim 1,
The deposition device,
a deposition chamber having an inlet through which the filter medium transported by the conveying device is introduced into the interior and an outlet through which the filter medium is taken out;
a spraying device for spraying the nanoparticles generated by the nanoparticle generator toward the treatment surface of the filter medium; and
An apparatus for manufacturing an antibacterial filter medium on which nanoparticles are deposited, comprising: an exhaust device for discharging an atmosphere in the deposition chamber. generating positively charged nanoparticles and negatively charged nanoparticles by generating a spark discharge between at least one pair of electrodes made of nanoparticle materials;
coagulating the positively charged nanoparticles and the negatively charged nanoparticles generated by the spark discharge with each other in an aggregation chamber by attraction between the charges of the particles;
supplying the agglomerated nanoparticles to a deposition chamber using dry air as a carrier gas;
supplying a filter medium into the deposition chamber;
Injecting and depositing dry air containing the nanoparticles on the treatment surface of the filter medium moving in the deposition chamber,
In the step of aggregating the positively charged nanoparticles and the negatively charged nanoparticles generated by the spark discharge with each other by the attraction between the charges of the particles in the aggregation chamber,
Forming an alternating electric field in the coagulation chamber to promote the behavior of the nanoparticles in the chamber, characterized in that it further comprises a method for manufacturing an antibacterial filter medium deposited with nanoparticles. delete The method of claim 12,
Before supplying the generated nanoparticles to the deposition chamber,
Further comprising the step of additionally charging the nanoparticles generated by the spark discharge, the method for manufacturing an antibacterial filter medium deposited with nanoparticles.

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