KR20090087982A - Food waste treatment apparatus having dehumidification device - Google Patents

Abstract

A food waste treating machine is provided to improve deodorization efficiency of a deodorization filter by filtering gas of a state in which moisture is removed, and to prevent damage of the machine due to corrosion of components. A food waste treating machine includes the followings: a treating main body part(200) drying or pulverizing injected food waste; a gas flow tube(215) connected with the main body part of the food waste treating machine; a dehumidification unit removing moisture of gas which is discharged from the treating main body part; and a deodorization filter part(220) purifying the gas, and connected with the dehumidification unit. The dehumidification unit is a condenser using a heat exchanger.

Description

Food Waste Treatment Apparatus Having Dehumidifier

The present invention relates to a food processor for drying food waste, and more particularly, to a food processor provided with a dehumidifying device to easily remove moisture in the food processor.

In general, a certain amount of residue (waste food) is discharged from each home or restaurant every day, and the residue is used as a livestock feed or filtered through a simple strainer and then discarded. This residue treatment method increases the amount of waste, and if the waste is not thrown away frequently, it causes odors and pollutes the surrounding air.

In recent years, efforts have been made to reduce food waste in homes and restaurants, but there are many difficulties in controlling the amount of garbage that is gradually increasing. When landfills are disposed of food, landfill sites are limited, and environmental damage from odors and leachate has become very serious.

Therefore, in recent years, the government has implemented a waste-based tax system, and the government has also mandated that a treatment device that can induce food, such as fermentation, drying, or extinguishing, must be mandatory when newly built for each group meal or apartment complex. .

However, the food waste contains about 80 ~ 90% of moisture, and in order to reduce the amount of food waste, it is processed through the process of drying and fermentation by heating, microbial reaction, etc. At this time, a large amount of moisture and high concentration of odor are generated. Resolving this presents another challenge.

The odor component that is usually generated in the food processor generates various kinds of gases, and the gas composition varies depending on the type of food, the length of the food, the treatment period, and the processing temperature, resulting in decay or abnormal fermentation, that is, anaerobic fermentation. In some cases, a large amount of toxic odorous gas can be released, which can harm the human body.

This is due to the formation of anaerobic conditions in the course of continuous processing of food waste, the more severe odor is generated, the gas providing the cause of the odor generated at this time can be largely separated into acid, neutral, basic. Examples of acidic gases include hydrogen sulfide and methyl mercaptan. Basic gases include ammonia and trimethylamine, and neutral gases include methyl sulfide, methyl disulfide, and acetaldehyde.

These odorous gases are harmful to the human body, cause air and environmental pollution, and give a disgust to the surrounding facilities.

Food wastes that contain a lot of moisture are easily rotted if they are left as they are, causing odors and harming the surrounding hygiene environment.Many companies have tried to develop the technology for the treatment of food waste in homes and restaurants. The food processor product can be used by various methods such as hot air circulation drying method with agitation function, hot air circulation drying method with agitation function and crushing function, simultaneous use of agitation function and microorganisms, and refrigerated storage. Has been released.

Figure 1 shows the configuration of a conventional food processor. As illustrated in FIG. 1, the food processor may deodorize to purify the harmful gas generated from the food processor main body 100 and the food processor main body 100 to crush and dry the food waste introduced through the food inlet 105. It is composed of a filter unit 120, the deodorizing filter unit 120 is a filter unit for receiving the harmful gas generated in the food processor body unit 100 through the inlet 131 connected to the gas flow pipe 115 to purify it 130, the purge air outlet 170 for discharging the gas purified from the filter unit 130 to the outside through the connection pipe 150 provided in the outlet 133. In general, the filter unit 130 uses a catalyst filter or an activated carbon filter, and the filter unit 130 may be surrounded by the heat insulating unit 160.

Such a conventional food processor does not effectively remove moisture generated in the food processor, so that the food waste easily decays and becomes hygienic, and the apparatus is corroded. In addition, since the gas containing a large amount of moisture generated in the food processor main body moves directly to the deodorization filter unit, there is a problem that the deodorization efficiency is lowered.

An object of the present invention for solving the above problems is to provide a food processor having a dehumidifying device for easily removing the moisture generated in the food processor.

Food processor equipped with a dehumidifying device according to the present invention for achieving the above object is a food processor body portion for grinding or drying the injected food; A dehumidifying device that is connected to the food processor main body and a gas flow pipe, and receives a gas discharged from the food processor main body to remove moisture of the gas; And a deodorizing filter unit connected to the dehumidifying apparatus and purifying the gas dehumidified from the dehumidifying apparatus.

It is preferable that the said dehumidifier is a condenser using a heat exchanger.

The inside of the condenser is provided with an air flow pipe that is repeatedly bent in a "U" shape, the air flow pipe is connected to the air inlet provided in the food processor body portion to receive the outside air, the lower side of the condenser inside the condenser The water flow pipe for discharging the generated water to the outside is installed, it is preferable that the reservoir tank for receiving water is detachably installed at the end of the water flow pipe.

It is preferable to further include a heating device provided between the dehumidifying device and the deodorizing filter part and heating the gas dehumidified from the dehumidifying device.

It is preferable that the said deodorization filter part is comprised from an AC filter part or a catalyst filter part.

It is preferable that the said heating apparatus is a heater.

As described above, the present invention can easily remove the moisture generated in the food processor to prevent contamination around the device and prevent damage due to corrosion of the device, so that the food processor can be used more stably and cleanly. In addition, by filtering the gas in a state in which water is removed, it is possible to increase the deodorization efficiency of the deodorization filter and to reduce the replacement cost of the filter.

The above objects, features and other advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. Hereinafter, with reference to the accompanying drawings will be described in detail a food processor equipped with a dehumidifying apparatus according to an embodiment of the present invention.

Figure 2 shows a block diagram of a food processor with a dehumidifier according to an embodiment of the present invention, Figure 3 is a block diagram of a food processor equipped with a dehumidifier and a heating device according to another embodiment of the present invention. 4 is a block diagram of a condenser according to an embodiment of the present invention.

2, the food processor according to an embodiment of the present invention is a food processor main body 200, a food processor main body 200 and the first gas to crush and dry the food waste input through the food inlet 205 A dehumidification device connected to the flow pipe 215 and receiving the gas discharged from the food processor main body 200 to remove moisture of the gas, and a deodorization filter part connected to the dehumidification device and purifying the dehumidified gas from the dehumidification device. It consists of 220.

In addition, the deodorization filter unit 220 receives the gas purified from the AC filter unit 230 and the AC filter unit 230, which primarily receives the gas dehumidified from the dehumidifying apparatus 280 through the second gas flow pipe 218. And a catalytic filter unit 240 for receiving and refining through the connecting pipe 250 and a purge air outlet 270 for discharging the purified gas from the catalyst filter unit 240 to the outside.

Of course, the AC filter unit 230 and the catalyst filter unit 240 may be applied in a different position, and only one type of filter of the AC filter unit 230 or the catalyst filter unit 240 may be used. Usually, as a deodorizing material, activated carbon, adhering stage, catalyst filter, etc. are used.

The food inlet 205 may be provided with a funnel-shaped or cylindrical device so as to put food waste well. In addition, the funnel-shaped or cylindrical device is preferably detachably installed to facilitate the cleaning of the food inlet.

When the food introduced into the food inlet 205 is intact, since the deodorization may be difficult, the food processor main body 200 may further include a grinder to finely cut food.

The food processor main body 200 may be provided with a transfer crushing member (not shown) to crush the injected food waste, and may be provided with a drying furnace (not shown) to dry-process the crushed food waste. have. As the transfer grinding member (not shown), a grinding blade in the form of a screw is mainly used depending on the use. In addition, the drying furnace varies depending on the drying method, but is provided with a certain size of drying and a heat supply device.

During the crushing and drying of food waste, a large amount of malodorous and watery gas is generated. Moreover, since this gas is heated so that it may be dried, it is high temperature about 70-80 degreeC.

In general, after processing 1kg of food waste, only 200 ~ 300g will remain. At this time, the 700 ~ 800g is mostly water and odor gas. Of these, the amount of water (water vapor) is relatively much higher than that of odor components.

In an embodiment of the present invention shown in Figure 2, as a dehumidifying apparatus, a condenser 280 using a heat exchanger is used. A condenser is a device that condenses and liquefies heat of high-temperature and high-pressure gas in air and cooling water at room temperature. In the present invention, an air-cooled method is used using air at room temperature as a refrigerant.

Referring to FIG. 4, which shows the condenser 280 in detail, the condenser 280 is connected by the food processor main body 200 and the first gas flow pipe 215, and the high temperature and high humidity generated in the food processor main body 200. Gas is received through the first gas flow pipe 215. The condenser 280 is provided with an air flow pipe 283 repeatedly bent in a "U" shape and the air flow pipe 283 is connected to the air inlet 212 of the food processor body 200.

Therefore, the air introduced into the air flow tube 283 through the air inlet 281 provided on one side of the condenser 280 is heat from the high temperature and high humidity gas introduced into the condenser 280 through the gas flow tube 215. After receiving a rise by a predetermined temperature, the food processor flows back into the main body 200. Usually, air of a temperature of 15 ~ 30 ℃ is supplied to the food processor main body 200. When the air temperature is low, such as winter, when the low-temperature air flows into the food processor main body 200, food waste is not easily heated. When using the condenser 280 of the present invention, Since the food processor can be supplied to the main body 200, the above problems can be solved.

A fan 282 may be provided at one side of the air inlet 281 so that external air may be easily introduced into the air flow tube 283 in the condenser 280.

The speed of the air in the air flow tube 283 may be controlled by the power supplied to the fan 282.

Condenser 280 according to the present invention is a surface heat exchanger, the hot gas introduced through the first gas flow tube 215 is surface-cooled by air at room temperature flowing through the air flow tube 283 condensed to change to water do. When the condenser 280 is continuously used, a large amount of water is generated in the condenser 280, and a water outlet 284 is provided at the bottom of the condenser 280 to remove the condenser 280. Water discharged to the water outlet 284 flows to the reservoir 287 through the water flow pipe 285, and when the reservoir 287 is full, the user separates the reservoir 287 to remove the water of the reservoir 287. Can be used again.

Air passing through the condenser 280 flows to the deodorization filter unit 220 through the second gas flow pipe 218. The second gas flow pipe 218 is installed at the first inlet 231 provided in the upper portion of the AC filter unit 230 in the deodorizing filter unit 220, so that gas is introduced into the AC filter unit 230. Gas primarily purified by the AC filter unit 230 flows to the catalyst filter unit 240 through the connection pipe 250 provided at the first outlet 233 at the bottom of the AC filter unit 230. In addition, the gas re-reformed in the catalyst filter 240 flows to the purge air outlet 270 through the second outlet 243 provided on the catalyst filter 240 and is discharged to the outside.

Activated carbon is provided inside the AC filter unit 230. Activated carbon is formed by the shape and surface area of pores, and its surface area is generally 700 to 17000 times.

The use of activated carbon has the advantage of excellent removal of pesticides, synthetic detergents, and odors, but as the adsorption proceeds, the efficiency decreases, so that exchange or regeneration is necessary, and if it is shaken or the air flows backward, impurities are discharged again.

When the activated carbon filter is used, the adsorption amount at the high and low concentrations of harmful gases is different, which can be adjusted by the pore size distribution of the activated carbon or by the additives.

A catalyst cartridge is provided inside the catalyst filter 240. As the catalyst cartridge, a high temperature catalyst cartridge or a low temperature catalyst cartridge is generally used.

The high temperature catalyst cartridge removes volatile organic compounds (VOC) using catalysts such as platinum, palladium, rhodium, manganese, copper and zinc, and the low temperature catalyst cartridges are of catalyst coated pellet or granule type. Activated carbon can be used to remove gases such as trimethyl amine, acetaldehyde, methyl sulfide, and the like.

Outside the AC filter unit 230 and the catalyst filter unit 240 is provided with a heat insulating unit 260 to prevent the heat of the high temperature to be discharged to the outside. This is to increase the thermal efficiency and to not easily damage the internal parts of the food processor.

In the filter device provided in the conventional food processor, the odor gas is purified directly from the deodorization filter, but when a large amount of water is contained in the odor gas, the deodorization efficiency of the deodorization filter decreases, and the deodorization filter cannot be used for a long time, resulting in high replacement costs. There was a problem.

However, according to an embodiment of the present invention, since the dehumidification is performed by using the condenser 280 before gas enters the deodorization filter unit 220, the deodorization efficiency is increased by deodorizing the dehumidified gas using the deodorization filter unit 260, and the cost is increased. To reduce the

Referring to Figure 3, the food processor equipped with a dehumidifying device and a heating device according to another embodiment of the present invention, the food processor main body 200, the food processor to crush and dry the food waste injected through the food inlet 205, the food processor A dehumidifying device, a dehumidifying device and a second gas flow pipe 218, which are connected to the main body 200 and the first gas flow pipe 215 and receive the gas discharged from the food processor main body 200 to remove water from the gas. A heating device 290 connected to the heating device 290 for heating the dehumidified gas from the dehumidifying device and a deodorizing device for connecting the heating device and the second gas flow pipe 218 to purify the heated gas from the heating device 290. It is composed of a filter unit 220.

In addition, the deodorization filter unit 220 receives the gas purified from the AC filter unit 230 and the AC filter unit 230, which primarily receives the gas dehumidified from the dehumidifying apparatus 280 through the second gas flow pipe 218. And a catalytic filter unit 240 for receiving and refining through the connecting pipe 250 and a purge air outlet 270 for discharging the purified gas from the catalyst filter unit 240 to the outside.

Of course, the AC filter unit 230 and the catalyst filter unit 240 may be applied in a different position, and only one type of filter of the AC filter unit 230 or the catalyst filter unit 240 may be used. Usually, as a deodorizing material, activated carbon, adhering stage, catalyst filter, etc. are used.

In one embodiment of the present invention shown in Figure 3, as a dehumidifying apparatus, a condenser 280 using a heat exchanger is used. A condenser is a device that condenses and liquefies heat of high-temperature and high-pressure gas in air and cooling water at room temperature. In the present invention, an air-cooled method is used using air at room temperature as a refrigerant.

The condenser 280 according to the present invention shown in FIG. 4 is a surface heat exchanger, and the hot gas introduced through the first gas flow pipe 215 is surface cooled by air at room temperature flowing through the air flow pipe 283. To condense and change to water

When the condenser 280 is continuously used, a large amount of water is generated in the condenser 280, and a water outlet 284 is provided at the bottom of the condenser 280 to remove the condenser 280. The water discharged to the water outlet 284 flows to the reservoir 287 through the water flow pipe 285, and when the reservoir 287 is full, the user separates the reservoir 287 to remove the water of the reservoir 287. Can be used again.

Comparing the embodiment of the food processor shown in FIG. 3 with the embodiment of the food processor shown in FIG. 2, there is a difference in that a heating device 290 is further provided between the condenser 280 and the deodorization filter unit 220. .

When the gas generated in the food processor main body 200 is condensed in the condenser 280, the temperature drops while being liquefied. When the dehumidified gas moves to the AC filter unit 230, the surface of the dehumidifying efficiency decreases due to high relative humidity. There is this

That is, the heat exchanged gas may reduce the absolute amount of water vapor, but still have a high relative humidity. By reheating and lowering the relative humidity, the deodorizing efficiency can be increased. Therefore, a heating device 290 may be installed between the condenser 280 and the deodorization filter unit 220 to heat the dehumidified gas in the condenser 280 to increase the deodorization efficiency of the AC filter unit 230. .

The heating device 290 is preferably a heater. Usually electric heaters or gas heaters may be used.

While preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described specific embodiments. That is, a person having ordinary skill in the art to which the present invention pertains can make many changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications are possible. Equivalents should be considered to be within the scope of the present invention.

1 is a block diagram of a conventional food waste processor,

2 is a block diagram of a food processor equipped with a dehumidifying apparatus according to an embodiment of the present invention;

3 is a block diagram of a food processor equipped with a dehumidifying apparatus and a heating apparatus according to another embodiment of the present invention, and

Figure 4 shows the configuration of a condenser according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

200: food processor body 205: food inlet

210: gas outlet 212: air inlet

215: first gas flow pipe 220: deodorization filter unit

230: AC filter unit 231: first inlet

233: first outlet 240: catalyst filter

241: second inlet 243: second outlet

250: connector 260: heat insulation

270: purge air outlet 280: condenser

281: air inlet 282: fan

283: air flow tube 285: water flow tube

287: reservoir 290: heating device

Claims (6)

A food processor main body configured to grind or dry the injected food; A dehumidifying device that is connected to the food processor main body and a gas flow pipe, and receives a gas discharged from the food processor main body to remove moisture of the gas; And a deodorization filter unit connected to the dehumidifying apparatus and purifying the gas dehumidified from the dehumidifying apparatus. The method of claim 1, The dehumidifier is a food processor equipped with a dehumidifier, characterized in that the condenser using a heat exchanger. The method of claim 2, The inside of the condenser is provided with an air flow pipe that is repeatedly bent in a "U" shape, the air flow pipe is connected to the air inlet provided in the food processor body portion to receive the outside air, the lower side of the condenser inside the condenser A water flow tube for discharging the generated water to the outside is installed, the food processor with a dehumidifying device, characterized in that the reservoir for separating the water is installed detachably at the end of the water flow tube. The method of claim 1, And a heating device disposed between the dehumidifying device and the deodorizing filter unit, the heating device heating a gas dehumidified from the dehumidifying device. The method of claim 1, The deodorizing filter unit is a food processor equipped with a dehumidifying device, characterized in that consisting of an AC filter unit or a catalytic filter unit. The method of claim 4, wherein Food heater with a dehumidifying device, characterized in that the heating device is a heater.

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