KR20090024414A - Food waste dryer - Google Patents

Abstract

A food garbage drying apparatus is provided to remove a bad smell of exhaust air and prevent indoor air pollution by installing a discharge gas processing unit and an activated carbon treating unit. A food garbage drying apparatus(1000) comprises the following units. An inner container(100) accommodates food garbage inside and has a plurality of ventilation holes at a bottom. A ventilation fan(300) inhales air coming from the inner container and forcedly circulates the air. A valve(700) located in a backside of the ventilation fan distributes the air toward a drain-pan(200) and an external outlet. A heating unit(400) positioned in a backside of the valve converts the forcedly circulated air into wind with high temperature.

Description

Food waste dryer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food waste drying apparatus, and more particularly, to a food waste drying apparatus for hot-air drying food waste by hot air internal air at a high temperature by a heater.

In general, the food waste discharged from each household has a lot of problems in disposal because it decomposes due to moisture and is accompanied by odor due to moisture. In particular, as soon as food waste occurs, it is not easy to dispose of food waste in the external food waste collection box, so each family collects a few days of food waste in a food waste bin and then discharges it.

In general, food waste is simply stored and discharged in each household at present, and the food waste decays in the house for several days, causing odor. In order to solve the odor problem due to corruption caused by the simple storage of such food waste, the conventional food waste bins freeze the food waste through the refrigeration method or dry the food waste by the hot air drying method so that the food waste decays. To prevent it.

The present invention relates to a food waste drying apparatus of the hot air drying method of the two types of food waste drying apparatus. Food waste drying apparatus in the present invention is used to mean food waste bins for home or restaurant.

As a technology related to the food waste drying apparatus of the conventional hot air drying method, the food waste drying apparatus of the Republic of Korea Patent Publication No. 1999-45429 is fixed to a drawer formed on the front of the casing is a processing tank for storing food waste, the storage tank A heating chamber for forming a space to be formed; a heater for heating the processing tank in the heating chamber; a condensing chamber for forming a space consisting of a fin tube and a tank; a fan for blowing air through the fin tube; The discharge pipe which connects a drain pipe, the on-off valve which opens and closes the flow path of a discharge pipe, and the controller which controls this open / close valve and applies a voltage to a heater and a fan is provided.

In addition, the Republic of Korea Utility Model Registration No. 362618 circulates through the blower fan so that the hot air is supplied into the main body disposed in the case, a part of the circulated hot air is induced and discharged to the outside, and a part of the circulated hot air through the heater while Hot air circulation means for inducing repeated heating; Heat generating means installed at a lower end of the main body to provide heat to the bottom surface of the storage container freely in and out of the main body through a door installed in front of the case; An inlet disposed on the front upper side of the main body to feed food waste into the storage container; In the blower pipe one side of the dryer for food waste provided with an air suction pipe is installed to replenish the amount of air in the main body discharged to the outside, installed between the connection pipe and the exhaust pipe connected to the upper side of the main body through a fan drive An auxiliary fan for discharging the odor in the main body to the outside, a partition plate for forming an air circulation path through which the hot air discharged from the inside of the main body flows to the blower fan, a filter installed between the exhaust port and the blower pipe, A heater disposed on a bottom surface of the heater, a cover plate formed by covering a top surface of the heater while a plurality of through-holes are formed, a connection pipe that is connected to the blower pipe exhaust port and the exhaust pipe side exhaust port, and the blower pipe connector and the exhaust pipe side And a Y-shaped or T-shaped connecting member which is connected so that the connecting pipe and the discharge pipe communicate with each other. The circulation means includes a distribution pipe installed to communicate with one side of the upper end of the main body, a blower tube connected to the distribution pipe and connected to the other end of the main body, and some of the hot air installed in the blower and sucked through a fan drive to the outside. A blowing means composed of a motor and a blowing fan to be discharged and partially transferred to the heater side; It is installed between the distribution pipe and the blower fan, and is installed in the blower tube is proposed a technology for a food waste dryer, characterized in that consisting of a heater to reheat the hot air supplied through the blower fan to be supplied into the main body.

In the conventional hot air drying type food waste drying apparatus (or bucket) is a structure in which the hot air heated by the heater is injected into the upper portion of the inner container holding the food waste, the hot air is not evenly transmitted to the inside of the food, The upper part is well dried, but the lower part is not well dried, and there is a problem that food waste is decayed in the lower part. In addition, in the conventional hot air drying food waste treatment apparatus, the gas discharged to the outside of the waste bin is burned with odor gas using a high temperature heater, or simply treated with activated carbon and discharged, but energy consumption is high when a high temperature heater is used. There is a big risk of fire, and when treated with activated carbon, complete odor treatment is impossible, there is a short life of activated carbon.

SUMMARY OF THE INVENTION An object of the present invention is to provide a novel hot air-dried food waste drying apparatus in which a hot air-dried food waste drying apparatus improves the circulation of hot air so that the food waste stored in the inner cylinder is uniformly dried from the lower portion to the upper portion. There is.

In addition, it is an object of the present invention to improve the treatment of odor gas emitted from the food waste drying apparatus to the atmosphere to minimize the occurrence of odor.

In addition, an object of the present invention is to enable the treatment of odor gas in the air circulated in the food waste drying apparatus.

The present invention has the following configuration to achieve the above object.

It has a plurality of vents for ventilating the air at the bottom, the upper portion of the food waste storage inner cylinder is open;

A blowing fan for sucking air from the upper portion of the inner cylinder and forcing circulation;

Located at the rear end of the blowing fan, the valve for distributing the air forced by the blowing fan toward the drip tray and the external discharge port;

A heating unit positioned at a rear end of the valve and including a heater for hot-airing the forced air to a high temperature;

Located in the lower portion of the inner cylinder, the upper portion is open, a drip tray having a hot air inlet opening at least one side of the side is connected to the heating portion and the pipe; And it comprises a case that serves as an exterior material, it provides a food waste drying apparatus, characterized in that the high temperature hot air generated from the heating portion is transferred from the bottom of the inner cylinder to the top through the drip tray.

In addition, the present invention preferably further comprises a discharge gas treatment unit capable of oxidizing air that is branched from the valve and discharged to the outside.

The discharge gas treatment unit may be any one of a UV lamp, a photocatalyst and a UV lamp, an ozone generator, an anion generator, an oxygen cluster generator, an ozone cluster generator, and a plasma generator. In particular, the photocatalyst is preferably TiO ₂ .

In addition, the present invention preferably further comprises an activated carbon treatment unit at the rear end of the discharge gas treatment unit. In particular, the activated carbon treatment part is preferably a structure in which the acid treated activated carbon, the alkylated activated carbon, and the neutral treated activated carbon are stacked in any order.

In addition, the inner cylinder is preferably further provided with a conventional handle on the top.

In addition, the heating portion preferably has a plurality of wrinkles on the surface.

In particular, it is preferable that the photocatalyst is coated on the heater, and the UV lamp is provided on the heater.

In the inner cylinder, the bottom of the inner cylinder on the hot air inlet side of the drip tray protrudes upward, so that the hot air is uniformly distributed.

In addition, the inner bottom of the inner cylinder is preferably further provided with a rug having a ventilation opening.

In particular, the rug is preferably any one of a plastic sheet, paper, non-woven fabric provided with a plurality of vents.

In the hot air drying food waste drying apparatus of the present invention, since hot air is circulated from the lower portion of the inner cylinder to the upper portion, the food can be dried as a whole, and a photocatalyst is coated on a heater to treat the air circulated by the photocatalyst, and the circulation air Part of the discharged air is also treated with the odor gas by the discharge gas treatment unit and the activated carbon treatment unit, it is possible to solve the problem of indoor pollution caused by odor even in the air discharged to the room.

Hereinafter, the present invention will be described with reference to the drawings.

1 is a simplified configuration of the food waste drying apparatus 1000 of the present invention. Food waste drying apparatus 1000 of the present invention, the food waste is directly stored in the inner cylinder 100, drip tray 200, blowing fan 300, heating unit 400, discharge gas treatment unit 500, activated carbon treatment unit 600 ), The valve 700 and the casing 800 encloses all of the above components. Each of the components is connected by a pipe (not shown) to allow air to circulate in the food waste drying apparatus 1000.

Looking at the circulation of air in the food waste drying apparatus 1000 of the present invention, the air is sucked by the blowing fan 300 through the hot air circulation port 810 from the upper portion of the inner cylinder 100, to the valve 700 Transferred. 1 consists of one valve in FIG. 1, but it is composed of a plurality of valves as necessary, one or more in the heating unit 400 to be described later, one or more installed in the piping line of the discharge gas treatment unit 500 Can be. Since the structure or connection of such a valve is a conventional technique, detailed description thereof will be omitted. Circulating air is branched by the valve 700, and most of the air is circulated to the heating unit 400, and a predetermined amount of air is discharged to the outside of the food waste drying apparatus 1000 to discharge gas processing unit 500 to be described later. After the malodorous gas is processed in the activated carbon treatment unit 600, the waste gas is discharged to the outside of the food waste drying apparatus 1000. The air warmed by the hot blast of hot air by the heater 410 of the heating unit 400 is transferred to the drip tray 200 and through a plurality of vent holes 120 at the bottom of the inner cylinder 100 on the drip tray 200. Hot air circulates upward. Therefore, unlike the conventional food waste drying apparatus 1000, the hot air heated by the heating unit 400 is injected from the lower portion of the inner cylinder 100 and is circulated toward the upper portion of the inner cylinder 100. By having a structure in which the hot air is injected into the lower portion of the inner cylinder 100, the food waste stored in the inner cylinder can be evenly dried from the bottom to the top. In the conventional food waste drying apparatus, hot air is injected into the upper portion of the inner container, so that the upper portion of the food waste is faster to dry, but the lower portion of the food waste does not transfer well, so that the lower portion of the food waste is time-consuming to dry. In addition, the water dropped to the drip tray 200 is also naturally dried by the hot air flowing into the drip tray 200, there is no need to throw away the water collected in the drip tray 200, it is convenient to manage.

FIG. 2 is a more detailed embodiment of FIG. 1. The inner cylinder 100 is rotated by the hinge 112 and has a conventional handle 110 formed on the upper portion, including a member 111 that is directly held by a hand, and a plurality of ventilation holes 120 are provided on the bottom surface of the inner cylinder. There is, the water drains from the food waste into the drip tray 200, the hot air is injected from the drip tray 200 through the vent hole 120. Air is circulated from the inner cylinder 100 through the hot air circulation port 810 and the blowing fan 300 installed in the case 800 at a predetermined distance from the inner cylinder 100, and the discharge of the circulated air to the outside is performed by the case 800. Discharge through the discharge port 820 on the back or side of the). Inflow of fresh air from the outside into the food waste drying apparatus 1000 may be injected by an external air inlet 830 (see FIG. 11) installed at a predetermined distance from the hot air circulation port 810.

The drip tray 200 is open as shown in FIG. 3, and has a shape having an inner space for storing water falling from the inner cylinder 100. In FIG. 5, the drip tray 200 may be cylindrical. Characteristic of the drip tray 200 of the present invention has a hot air inlet 210 so that any one of the side is cut and connected to the heating unit 400 and the pipe can be injected hot air. The hot air inlet 210 and the heating unit 400 are connected by a pipe (not shown) so that hot air heated at a high temperature by the heating unit 400 is injected through the hot air inlet 210 of the drip tray 200. Then, it is injected into the inner cylinder 100 through the vent 120 of the inner cylinder 100 as described above.

4 is a cross-sectional view of the inner cylinder 100 and the drip tray 200 in which the bottom of the inner cylinder 100 protrudes upward toward the hot air inlet 210 of the drip tray 200. Since the inner cylinder 100 protrudes upward toward the hot air inlet 210, the hot air injected from the hot air inlet 210 may be uniformly injected into the vent 120 at the bottom of the inner cylinder. Hydrodynamically, when the bottom of the inner cylinder 100 is flat, the hot air injected from the hot air inlet 210 is injected toward the inner bottom of the barrel farther than the inner bottom of the inner hot air inlet 210, so that the inner cylinder can be uniformly distributed. The bottom surface of the 100 is preferably protruded upward toward the hot air inlet 210.

5 is another embodiment of the inner cylinder 100 of the present invention, the easy to remove the rug 150 on the bottom surface of the inner cylinder 100. Rug 150 is not limited to the material if the shape is ventilated. That is, all of the plastic film, paper, nonwoven fabric, and the like, perforated to have the ventilation holes are possible. Conventional dried food waste stuck to the bottom surface of the inner container 100, so it was often difficult to discard the dried food waste. Therefore, by further providing the rug 150 in the inner cylinder 100, the food waste together with the rug 150 can be easily discarded.

6 illustrates a heating unit 400 composed of only the heater 410 as one embodiment of the heating unit 400. In order to increase the contact area with air, the heater 410 of the present invention preferably has wrinkles as shown in FIGS. 6 and 7.

FIG. 7 illustrates an embodiment of the heating unit 400, and includes a heater that becomes the photocatalytic coating 420 on the wrinkles of the heater 410 and one or more UV lamps 430 to activate the photocatalyst. As the photocatalyst, TiO ₂ is preferable. The photocatalyst and the ultraviolet lamp are simply hot-aired by the heater 410, and the odor component in the circulated air can be purified by the photocatalyst. Since the mechanism of purifying the odor gas by the photocatalyst and the UV lamp is a well-known technique, a detailed description thereof is omitted.

8 and 9 show the form of the valve of the present invention. 8 and 9, the circulation air is branched from the blower fan 300 to the heating unit 400 and the discharge gas processing unit 500 by the valve 700. The valve 700 may be provided at one branch or one pipe at the branch point, or one at the discharge gas treatment unit 500 at the branch point, but the method of diverting the circulating air by the valve member may be various. Does not depend on the number or type of specific valves.

As shown in FIG. 8, the air discharged by the valve 700 may be subjected to the odor gas treatment once in the discharge gas treatment unit 500 at the front end of the activated carbon treatment unit 600. By processing the malodorous gas in the discharge gas treatment unit 500, it is possible to reduce the burden of treating the malodorous gas in the activated carbon treatment unit 600 in the rear stage and extend the life of the activated carbon.

The discharge gas treatment unit 500 of the present invention is preferably at least one of a UV lamp alone, a photocatalyst and a UV lamp, an ozone generator, an anion generator, an oxygen cluster generator, an ozone cluster generator, and a plasma generator. The apparatuses are known in the art of malodorous gas treatment mechanism, and the description of the specific malodorous gas treatment mechanism is omitted.

10 is an embodiment of the activated carbon treatment unit 600, the activated carbon treatment unit 600 may be composed of one activated carbon column, it is preferable that the three-stage configuration of the symbols 610, 620, 630 as shown in FIG. One of the three activated carbon columns consists of an activated carbon column treated with acid, one activated carbon column treated with alkali, and one activated carbon column treated with neutral treatment, and the activated carbon column treated with acid facilitates the treatment of alkaline odor gas. The treated activated carbon column is easy to treat neutral odor gas, and the alkaline treated activated carbon column is easy to treat acid odor gas. The three types of activated carbon columns are sequentially stacked in any order.

11 is a perspective view of the food waste drying apparatus 1000 of the present invention, the front of the case 800 is provided with a plurality of buttons (S), it is possible to control the operation of the food waste drying apparatus 1000. . The external air inlet 830 is positioned above the inner cylinder 100 to inject fresh air from the outside into the food waste drying apparatus 1000. The upper portion of the case is provided with a normal case lid 840, to prevent the odor from being dispersed into the room from the inner cylinder (100). The shape of the case 800 is preferably a hexahedron as shown in FIG. 11, but may have a cylindrical or other shape.

12 is a perspective view for explaining the rear surface of the food waste drying apparatus 1000 of the present invention, which is indicated by a dotted line to show its internal configuration. In FIG. 12, the discharge gas processing unit 500 and the activated carbon processing unit 600 are disposed above the heating unit 400, but this arrangement is only an embodiment, and the discharge gas processing unit 500 and the activated carbon processing unit 600 are heated. It may be installed at the same height or lower than the portion 400. That is, according to the space utilization of the rear surface of the food waste drying apparatus 1000, the arrangement of the components is freely possible.

1 is a block diagram of a food waste drying apparatus of the present invention.

FIG. 2 is a cross-sectional view of FIG. 1.

3 is a perspective view of the inner cylinder and the drip tray of the present invention.

4 is a cross-sectional view of one embodiment of the inner cylinder and the drip tray of the present invention.

5 is a cross-sectional view of the inner cylinder and the drip tray of the present invention, which is a cross-sectional view of the embodiment further having a rug.

6 is a perspective view of a heater having a pleat of the present invention.

7 is a perspective view of an embodiment having a photocatalyst coating and a UV lamp in a pleated heater of the present invention.

Figure 8 is a schematic diagram of an embodiment having two valves of the present invention.

Figure 9 is a schematic diagram of an embodiment with one valve of the present invention.

10 is a cross-sectional view showing an embodiment of an activated carbon treatment unit of the present invention.

11 is a front perspective view of the food waste drying apparatus of the present invention.

12 is a rear perspective view of the food waste drying apparatus of the present invention.

** Description of the main symbols in the drawings **

100: inner cylinder 110: handle

120: vent 200: drip tray

210: hot air inlet 300: blowing fan

400: heating unit 410: heater

420: photocatalyst 430: UV lamp

500: discharge gas treatment unit 600: activated carbon treatment unit

700: valve 800: case

1000: food waste drying apparatus

Claims (12)

It has a plurality of vents for ventilating the air at the bottom, the upper portion of the food waste storage inner cylinder is open; A blowing fan for sucking air from the upper portion of the inner cylinder and forcing circulation; Located at the rear end of the blowing fan, the valve for distributing the air forced by the blowing fan toward the drip tray and the external discharge port; A heating unit positioned at a rear end of the valve and including a heater for hot-airing the forced air to a high temperature; Located in the lower portion of the inner cylinder, the top is open, the drip tray having a hot air inlet that is open at least one portion of the side is connected to the heating portion and the pipe; And a case serving as an exterior material, wherein the hot blast air generated from the heating unit is circulated from the bottom of the inner cylinder to the top through the drip tray. The food waste drying apparatus according to claim 1, further comprising a discharge gas treatment unit capable of oxidizing air that is branched from the valve and discharged to the outside. The food waste drying apparatus of claim 2, wherein the discharge gas treatment unit is any one or more of a UV lamp, a photocatalyst and a UV lamp, an ozone generator, an anion generator, an oxygen cluster generator, an ozone cluster generator, and a plasma generator. The food waste drying apparatus according to claim 3, wherein the photocatalyst is TiO ₂ . 3. The food waste drying apparatus of claim 2, further comprising an activated carbon treatment unit at a rear end of the discharge gas treatment unit. The food waste drying apparatus according to claim 5, wherein the activated carbon treatment unit has a stacked structure of acid treated activated carbon, alkylated activated carbon, and neutral treated activated carbon in any order. The food waste drying apparatus according to claim 1, wherein the inner cylinder further includes an ordinary handle at an upper portion thereof. The food waste drying apparatus according to claim 1, wherein the inner cylinder protrudes upward from the bottom of the inner cylinder of the drip tray so that the hot air is uniformly distributed. The food waste drying apparatus according to claim 1, further comprising a rug having a vent therein for ventilation on an inner bottom of the inner cylinder. The food waste drying apparatus of claim 9, wherein the rug is any one of a plastic sheet, paper, and non-woven fabric provided with a plurality of ventilation holes. The food waste drying apparatus of claim 1, wherein the heater has a plurality of wrinkles on a surface thereof. The food waste drying apparatus of claim 11, wherein a photocatalyst is coated on the heater, and a UV lamp is provided on the heater.

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