KR200183875Y1 - Apparatus for drying food-waste - Google Patents

Abstract

The present invention relates to a food waste drying apparatus, comprising: a case (12) for a food waste drying apparatus for drying food waste in which a large amount of moisture remains; A frame 18 installed in the case 12 and having first and second spaces 18a and 18b defined therein; A cylindrical housing (19) fixedly installed in the first space (18a) and having an input portion (21) and a discharge portion (22) to input and discharge the crushed or compressed food waste; Is installed in the housing (19), screw-type stirring means for stirring the food waste in accordance with the rotation; Power transmission means for providing a driving force to rotate the stirring means at a constant speed; Hot air circulation means for generating hot air into the housing 19 and circulating hot steam evaporated in the process of drying the food waste by hot air in a predetermined path; And fixedly installed in the second space 18b and connected to the housing 19 and the hot air circulation means to liquefy high temperature water vapor flowing out of the housing 19 to be discharged to the outside. Cooling means for re-supply into the housing 19; by removing the moisture remaining in the crushed or compressed food waste easily and smoothly using hot air, it is dried to remove the odor and recycled as compost or the like. Provides a food waste drying apparatus.

Description

Apparatus for drying food-waste}

The present invention relates to a food waste drying apparatus, and to a food waste drying apparatus that can be easily and smoothly dried to prevent environmental pollution and can be recycled.

In recent years, as environmental pollution has emerged as a social problem, the treatment of industrial waste as well as waste from homes and public restaurants has become an important social problem.

In general, waste can be classified as either waste that can be recycled or reused and waste that cannot be recycled. In particular, wastes from households or public restaurants are categorized as recyclable and non-recyclable wastes in order to reduce the cost of collection and disposal of wastes.Recyclable wastes are collected in plastic bags and incinerated at incinerators. Or are buried in the ground. As such, most of the non-recyclable waste from households or public restaurants is food waste, which often contains a large amount of water, so when the plastic bag containing food waste is broken, the liquid contained in the waste is collected. In addition to polluting the surrounding environment of the city, there is a large amount of energy consumption during incineration, and in the case of landfilling, the polluted liquid flows out or leaches into the ground, causing problems.

Therefore, in recent years, various kinds of food waste processors have been developed and used to remove and separate water from food wastes. As a conventional food waste processor, a dehydrator for food wastes and a compressor for food wastes are used. It is being developed and used.

However, in the above conventional food waste processor, the food waste dehydrator rotates a dehydration container in which food waste is accommodated by a motor power, thereby discharging the water of food waste by centrifugal force. Although it is effective, the odor emitted from food waste can be left as it is, which is not only very unpleasant to the user during the dehydration of food waste, but also the food waste is easily trapped in the drain of the water container due to the rotational force. Therefore, it was to give cumbersome problems, such as the need for frequent cleaning during use.

In addition, the food waste compactor is formed of a dehydration container having a drain hole and a pressing plate, in use, after receiving the food waste into the dehydration container, the received food is included in the food waste by compressing the food manually or automatically using a pressing plate. The dehydrated water is dehydrated, and it is a component that discharges water by applying pressure by a user's manual work. Not only did it give an ineffective problem, but also such a food waste compactor also has a odor discharged from the food waste, such as the above-mentioned food waste dehydrator, which is left to the user as it is unpleasant, even if recycled as compost. Bad smell, environment around There is the problem of pollution.

An object of the present invention is to provide a food waste drying apparatus that can be recycled in a state where odors are removed by easily and smoothly drying crushed or compressed food wastes. .

1 is a perspective view showing a food waste drying apparatus according to a preferred embodiment of the present invention,

FIG. 2 is a schematic diagram of FIG. 1;

3 is a perspective view showing the stirring means of FIG.

4 is a schematic cross-sectional view showing the discharge portion of FIG.

<Explanation of symbols for main parts of the drawings>

11 ... compressor 12 ... case

13 ... Cover member 14 ... Control panel

15 ... Timer 16 ... On-off switch

17 ... Installation 18 ... Frame

19 ... Housing 21 ... Input

21a ... Input hole 21b ... Input and closing member

22 ... outlet 22a ... outlet

22b ... Exhaust opening and closing member 23 ... Sensor

24 ... sensing member 25 ... receiving member

26 ... rotating shaft 27 ... first stirring blade

28 ... 2nd stirring blade 29 ... Shovel member

32 ... drive motor 33 ... drive sprocket

34 ... chain 35 ... driven sprocket

36 ... control unit 41 ... blower

43. Heating element 44 ... First net environment

45 ... 2nd Pure Environment Furnace 51 ... Cooler

52 ... Cooling chamber 52c ... Drain

53 ... Judo

In order to achieve the above object, a food waste drying apparatus according to a preferred embodiment of the present invention, in the food waste drying apparatus for drying the food waste in which a large amount of water remains, the case; A frame installed in the case and having first and second spaces defined therein; A cylindrical housing fixedly installed in the first space, the cylindrical housing having an input part and a discharge part to input and discharge the crushed or compressed food waste; Screw-type stirring means is installed in the housing, for stirring the food waste in accordance with the rotation; Power transmission means for providing a driving force to rotate the stirring means at a constant speed; Hot air circulation means for generating hot air into the housing and circulating hot steam evaporated in the process of drying the food waste by hot air in a predetermined path; And cooling means fixedly installed in the second space and connected to the housing and the hot air circulation means to liquefy high temperature water vapor flowing out of the housing to be discharged to the outside, and to supply the remaining gas back into the housing. Characterized in that comprises a.

According to the present invention, the stirring means is installed in the longitudinal direction of the housing and the rotating shaft rotated by the power transmission means, and the first stirring blade of the spiral installed on the rotating shaft to move the food waste in the screw direction; It is provided on the coaxial and provided in the inner region of the first stirring blade having a spiral second stirring blade for moving the food waste in the screw reverse direction, the first stirring blade is a food waste spread on the bottom of the housing It is preferable that the shovel member for pumping up is fixedly installed.

According to the present invention, the power transmission means is a drive motor installed on the lower side of the housing, a drive sprocket is installed on the drive shaft of the drive motor, is installed on one end of the rotary shaft and connected to the drive sprocket and the chain is the rotary shaft It is preferable to have a driven sprocket for rotating the.

According to the present invention, the hot air circulation means is fixed to the housing and a blower equipped with a heating member to blow high temperature hot air into the housing, and connected to the cooling means, the housing and the blower tubularly evaporated from food waste by hot air It is preferable to include a circulation path for passing the high temperature water vapor to the cooling means and return to the blower again.

According to the present invention, the cooling means is installed in the cooler and the cooler, the internal space is cooled to a predetermined temperature and the liquid is discharged to the outside by quenching and liquefying the high temperature water vapor supplied from the housing, and the residual gas is returned to the The cooling chamber may be provided, and the cooling chamber may include a plurality of induction plates installed up and down so that high temperature water vapor passes through the wave.

According to the present invention, the discharge portion is provided with a discharge hole formed in the bottom surface of the housing, the discharge opening and closing member for opening and closing the discharge hole, the detection unit is installed in the discharge opening and closing member for detecting the separation distance, the detection unit is a control unit When the discharge opening and closing member is opened by being electrically connected to the control unit is preferably receiving the detection signal of the sensing unit to provide a drive signal to the power transmission means.

Therefore, the water remaining in the crushed or compressed food waste can be easily and smoothly removed by using hot air, so that it can be dried in a state where odors are removed and recycled as compost.

It will be described in detail the food waste drying apparatus according to a preferred embodiment of the present invention having such features.

As shown in Figure 1 and 2, the food waste drying apparatus according to a preferred embodiment of the present invention is a device for drying and recycling food waste that is discharged from a home or a public restaurant and contains a large amount of water, directly The food waste may be mounted on an outlet (not shown) of a compressor 11 or a crusher (not shown), or may be provided separately from the compressor 11 or a crusher (not shown).

The food waste drying apparatus according to the present invention has a case 12 having a rectangular dome shape and a frame 18 installed to be accommodated in the case 12 and having first and second spaces 18a and 18b partitioned. ), And having an input part 21 and an outlet part 22 fixedly installed in the first space 18a and having a compressed or pulverized food waste from the compressor 11 or a crusher (not shown). A cylindrical housing 19, a screw-type stirring means installed in the housing 19 to stir the food waste as it rotates, and a power for providing a predetermined driving force to rotate the stirring means at a constant speed. Hot air circulating means and a second air hole for generating hot air into the housing 19 and circulating the hot water vapor evaporated in the process of drying the food waste by the hot air in a predetermined path. It is fixed to (18b) and is complementary to the housing 19 and the hot air circulation means to liquefy the high temperature water vapor flowing out of the housing 19 to discharge to the outside and liquefied residual gas remaining in the housing (19) Cooling means for feeding back into the chamber). In addition, the drying apparatus of the present invention further includes a control unit 36 for controlling the drive of the power transmission means.

The case 12 has a substantially hexahedral dome shape to form an inner space, and the lower part is open to accommodate the frame 18 to be described later. The upper surface of the case 12 has a cover member 13 that opens and closes to expose the input portion 21 of the housing 19 to be described later, and one side of the upper surface is provided with an operation unit 14 provided with a plurality of buttons have. The operation unit 14 is electrically connected to the control unit 36 to be described later, the time adjusting unit 15 for adjusting the time according to the capacity of food waste, and on-off switch for selectively controlling the drive of the power transmission means (16) is provided.

The frame 18 is formed of a bar member corresponding to the shape of the case 12 so as to support the high load, the first and the installation space is provided so that the housing 19 and the cooling means to be described later is accommodated and fixed; The second space portions 18a and 18b are respectively partitioned.

The housing 19 has a cylindrical shape having a predetermined length and is formed with an input portion 21 into which food waste is input, and a discharge portion 22 for discharging dried food waste is formed on one bottom surface of the housing 19. It is. The inlet 21 is an inlet 21a formed at a position corresponding to the cover member 13 of the case 12 and an inlet installed around the inlet 21a to open and close the inlet 21a. The opening and closing member 21b is provided. As shown in FIG. 3, the discharge part 22 is disposed around the discharge hole 22a and the discharge hole 22a formed at the bottom of the housing 19, that is, the left part of the drawing. A discharge opening / closing member 22b for opening and closing 22a, a detecting unit 23 installed at an end of the discharge opening and closing member 22b, and detecting a conveying distance of the opening and closing member 22b; And a sensing member 24 fixed to the housing 19 so as to be spaced apart from each other and reflecting a predetermined signal generated from the sensing unit 23 so that the sensing unit 23 detects the separation distance. Here, the sensing unit 23 is electrically connected to the control unit 36 to be described later, the control unit 36 is the discharge opening and closing member 22b by the detection unit 23 when the discharge opening and closing member 22b is opened. And a separation distance detection signal between the sensing member 24 and the driving signal is provided to the driving motor 32 of the power transmission means described later. In addition, the housing 19 is fixed around the discharge hole (22a) receiving member 25 formed to be inclined in the opening direction of the discharge opening and closing member (22b) to receive the dried food waste in a separate container Is installed. Here, reference numeral 17 is an installation tool formed on the side of the case 12 so that the discharge opening and closing member 22b and the receiving member 25 are exposed to the outside.

As shown in FIG. 4, the stirring means has a rotary shaft 26 installed in the longitudinal direction inside the housing 19 so as to be rotated by the driving force of the power transmission means, and is installed on the rotary shaft 26 to support the housing 19. And first and second stirring blades 27 and 28 having a screw shape for stirring the food waste introduced into the shell). The first stirring blade 27 is installed on the rotating shaft 26 is bent in the direction of the screw-shaped metal member forming a predetermined length of stirring the food waste contained in the housing 19 during the rotation of the rotating shaft 26 To gradually move toward the outlet 22. The second stirring blade 29 is formed in a shape of a metal member having a length shorter than a predetermined length of the first stirring blade 27 is bent in a screw reverse direction to be installed on the inner axis of the first stirring blade 27. At the time of rotation of 26, the food waste that is stirred by the first stirring blade 27 is moved to the opposite side of the discharge part 22. That is, the first and second stirring blades 27 and 28 are rotated in the housing 19 so as to rotate in the forward and reverse directions of the screw direction, and stir to cross the hot air to be uniformly dispersed in the food waste. In addition, the first stirring blade 27 is fixed to a plurality of shovel members 29 for spreading the food waste laid on the bottom surface of the housing 19 in a staggered direction to both blades. That is, as the first stirring blade 27 is rotated, the shovel member 29 spreads the food waste spread on the bottom of the housing 19 and pours it upward toward the body of the first and second stirring blades 27 and 28. Function. This is to dry food as quickly as possible by stirring food waste easily and smoothly.

On the other hand, the power transmission means is provided with a motor box 31 which is spaced apart from the lower side of the housing 19, and a drive motor 32 installed in the motor box (31). The drive motor 32 is provided with a drive sprocket 33 on the drive shaft 32a, while one end of the rotation shaft 26 installed in the housing 19, that is, the right part of the drawing, of the drive sprocket 33 A driven sprocket 35 is connected to the chain 34 to receive the driving force. Here, the drive sprocket 33 is provided smaller than the diameter of the driven sprocket 35 so that the driven sprocket 35 is decelerated at a constant ratio.

The control unit 36 is electrically connected to the operation unit 14 and the drive motor 32 of the case 12. That is, the control unit 36 selectively drives the drive motor 32 by the adjustment of the operation unit 14. In addition, the control unit 36 receives the detection signal of the detection unit 23 according to the opening and closing operation of the discharge unit 22 and selectively provides a drive signal to the drive motor 32.

The hot air circulation means is provided with a blower 41 is fixed to one side of the housing 19, the blower 42 is located in the housing (19). Here, the blower 41 is provided with a heating member 43 in the inner portion of the blower 42, the heating member 43 is a heating coil to convert the electrical energy into thermal energy. That is, the air introduced through the blower 41 is heated by the heating member 43 so that hot air flows into the housing 19, and the hot air evaporates the moisture contained in the food waste being stirred. In addition, the hot air circulation means is a first circulation environment path which is a path through which hot steam generated by evaporation of water in food waste is discharged to an outlet 19a formed on the other side of the housing 19 and supplied to cooling means described later ( 44 is provided in a tubular shape, and a second net environment path 45, which is a path through which a portion of gas passing through the cooling means flows out of the cooling means and is supplied to the blower 41, is provided in a tubular shape.

The cooling means is installed in a cooler 51 generating a cooling fluid and an internal space of the cooler 51, the internal space is cooled to a predetermined temperature, and the high temperature water vapor circulated from the housing 19 is quenched and liquefied to cool water. Is discharged to the outside, the remaining gas is provided with a cooling chamber 52 for supplying again to the blower (41).

The cooling chamber 52 is formed on one side and is connected to the first pure environment path 44 and the inlet port 52a, and is formed on an inclined bottom surface to drain the cooling water liquefied by quenching high temperature water vapor to the outside. 52c and an outlet 52b formed on the other side and connected to the second net environment path 45. In addition, a plurality of induction plates 53 intersecting up and down are formed inside the cooling chamber 52 so as to form a high temperature water vapor flowing through the first net environment path 44 and pass through the internal space. The guide plate 53 is installed in the vertical direction of the ceiling surface as a plurality of plate members spaced apart from the bottom surface at a predetermined interval, and installed in the vertical direction of the bottom surface to be provided between the guide plate 53 of the ceiling surface. And spaced apart from the ceiling surface at regular intervals. That is, the high temperature water vapor introduced through the inlet 52a of the cooling chamber 52 alternately induces collision with the guide plates 53 intersecting and passes through the flow of the wave, and the liquefied cooling water is drained through 52c), the remaining gas flows through the outlet 52b again along the second net environment path 45 and is re-supplied to the blower 41.

Hereinafter, the operation of the food waste drying apparatus according to a preferred embodiment of the present invention having the above configuration and its operation will be described in detail.

First, food wastes discharged from public restaurants such as homes, restaurants, hotels, etc., for example, food wastes containing a large amount of moisture, are put into a known food waste compressor 11 to be dehydrated and / or compressed. Then, the food waste is dehydrated to some extent or compressed to reduce the volume.

In order to dry these wastes and discard them in a state where odor or water is removed or recycle them as compost, the compressed wastes are put into a drying apparatus of the present invention and dried.

1 and 2, first, the cover member 13 of the case 12 is opened, and the opening and closing member 21b of the housing 19 is opened, and then the insertion hole 21a is shown. Put the waste into

Then, the time adjusting section 15 of the operation section 14 is operated to set the operation time. For example, to dry 100 kg of compressed waste, the operation time is set to approximately 2 hours. Then, the on-off switch 16 is operated to drive the stirring means. At this time, when the operation of the time adjuster 15 and the on-off switch 16 is completed, the control unit 36 provides a drive control signal so that the drive motor 32 can be driven for a set time. Then, the drive shaft 32a of the drive motor 32 is rotated counterclockwise as shown by an arrow in the figure, and the drive sprocket 33 coupled to the drive shaft 32a is also rotated counterclockwise. The driving force of the drive sprocket 33 is transmitted to the driven sprocket 35 connected by the chain 34, and the driven sprocket 35 rotates the rotating shaft 26 in the housing 19. Here, since the driven sprocket 35 is larger than the diameter of the drive sprocket 33, the driven sprocket 35 is rotated at a constant ratio.

As such, as the rotation shaft 26 is rotated, the first and second stirring blades 27 and 28 rotate in the same direction as the rotation direction of the rotation shaft 26. However, since the first stirring blade 27 is bent in the screw direction on the rotating shaft 26, the first stirring blade 27 rotates and moves the food waste contained in the housing 19 while stirring in the direction A shown by an arrow in the figure. At this time, the shovel member 29 scrapes the bottom surface of the housing 19 as the first stirring blade 27 is rotated to spread the food waste. The food waste thus spread is poured down toward the bodies of the first and second stirring blades 27 and 28 from above. That is, the food waste is agitated at the bottom surface of the housing 19 by the first stirring blade 27 and is dispersed and scattered again by the shovel member 29 to facilitate drying. In addition, since the second stirring blade 28 is bent in a screw reverse direction on the coaxial portion of the inner region of the first stirring blade 27, the food waste that is rotated and agitated by the first stirring blade 27 is transferred. They are moved while stirring back in the B direction indicated by the arrows in the figure.

Meanwhile, while the first and second stirring blades 27 and 28 perform the stirring operation, the blower 41 sucks air from the atmosphere and supplies it into the housing 19. At this time, the air is heated by the heating member 43 before being blown into the housing 19 through the air vent 42. This hot air is discharged into the housing 19 through the tuyeres 42, and the food waste is stirred by the stirring means as described above to dry the food waste to evaporate moisture. Water vapor evaporated from the food waste is discharged to the outlet 19a formed on the other side of the housing 19, and the discharged water vapor flows along the first pure environment path 44 to open the inlet 52a of the cooling chamber 52. Through the inside.

Most of the high temperature water vapor introduced into the cooling chamber 52 is liquefied and discharged into the cooling water while passing through the internal space cooled to a low temperature, and the remaining gas which is not liquefied is supplied to the blower 41 again. In other words, the high temperature water vapor flows out through the outlet 19a of the housing 19, flows along the first net environment path 44, and flows into the inside through the inlet 52a of the cooling chamber 52. Most of the water vapor is liquefied as it is quenched in a low temperature atmosphere and impinges on a low temperature induction plate 53 plate to form a wave shape and is quenched via the cooling chamber 52. The liquefied cooling water flows down the wall surface or the guide plate 53 of the cooling chamber 52 and flows out through the drain port 52c through the inclined bottom surface. The reason for disposing the induction plate 53 in the cooling chamber 52 to allow the high temperature steam to proceed in a wave form is to increase the progress path, the running time, and the contact time in the cooling chamber 52 to improve the steam. This is to change the liquid state as much as possible. At this time, a portion of the gas remaining without liquefying gives off a bad odor, such residual gas is sucked along the second net environment path 45 connected to the blower 41 and at the same time reheated by the heating member 43 to the housing ( 19) It is fed back inside. As such, the high temperature water vapor generated during drying is liquefied and discharged to the outside, and the odor from the food waste is completely removed by repeating the above-described process of supplying the remaining gas that is not liquefied back into the housing 19. In other words, the trash after drying is in a state where odor is removed.

Finally, after a predetermined time set by the time adjusting unit 15, the control unit 36 automatically provides the stop mode signal to the drive motor 32, the drive motor 32 is converted to the stop mode. In order to discharge the dried garbage to the outside of the housing 19, the discharge opening and closing member 22b is opened in the direction C shown by an arrow in the figure. At this time, as shown in Figure 4, the separation distance between the discharge opening and closing member 22b and the sensing member 24 is out of the preset range. Then, the sensing unit 23 detects a separation distance from the sensing member 24 and provides a sensing signal to the control unit 36. The control unit 36 receiving the detection signal compares the detection data detected through the detection unit 23 with preset reference data to control the driving of the driving motor 32. In detail, when the discharge opening / closing member 22b is opened, the sensing unit 23 converts the detected sensor amount, that is, the separation distance between the sensing unit 23 and the sensing member 24 into data, and then converts it into an electrical signal. The electrical signal is output to the control unit 36. The controller 36 receives an electrical signal and compares the detected data with predetermined reference data. Here, the reference data refers to the separation distance between the discharge opening and closing member 22b and the sensing member 24 when the discharge opening and closing member 22b is closed. When it is determined that the detected data determined by the controller 36 exceeds the reference data, the electric signal is converted into a drive control signal to provide a stop mode signal to the drive motor 32. When the drive motor 32 is converted to the drive mode, the first and second stirring blades 27 and 28 rotate in the screw forward and backward directions to move the dry waste in the housing 19 toward the discharge hole 22a. Therefore, the dry waste is completely discharged to the discharge hole (22a), and guided to the receiving member 25 is contained in a separately prepared container (not shown).

On the contrary, when the discharge of the dried garbage is completed, the discharge opening and closing member 22a is pushed to close the discharge hole 22b. Then, the drive motor 32 is automatically stopped driving. That is, when the separation distance between the discharge opening and closing member 22b and the sensing member 24 is located within the preset range, the detection unit 23 detects this and provides a detection signal to the control unit 36, and the control unit 36 Reads this and provides a stop mode signal to the drive motor 32.

In this way, the food waste that is dried and discharged can be recycled as compost or the like in which the odor is completely removed.

The present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various design variations are possible by those skilled in the art within the scope of the technical idea of the present invention. .

As described above, the food waste drying apparatus according to the preferred embodiment of the present invention is easily and smoothly removed by using hot air to remove moisture remaining in the crushed or compressed food waste, thereby drying in a state where odor is removed. There is an advantage in that it can be recycled as compost.

Claims (6)

In the food waste drying apparatus for drying food waste in which a large amount of water remains, Case 12; A frame 18 installed in the case 12 and having first and second spaces 18a and 18b defined therein; A cylindrical housing (19) fixedly installed in the first space (18a) and having an input portion (21) and a discharge portion (22) to input and discharge the crushed or compressed food waste; Is installed in the housing (19), screw-type stirring means for stirring the food waste in accordance with the rotation; Power transmission means for providing a driving force to rotate the stirring means at a constant speed; Hot air circulation means for generating hot air into the housing 19 and circulating hot steam evaporated in the process of drying the food waste by hot air in a predetermined path; And It is fixedly installed in the second space (18b), and is complementary to the housing 19 and the hot air circulation means to liquefy the hot water vapor flowing out of the housing 19 to discharge to the outside and the remaining gas is Food waste drying apparatus comprising a; cooling means for re-supply into the housing (19). The method of claim 1, The stirring means, The rotating shaft 26 installed in the longitudinal direction of the housing 19 and rotated by the power transmission means, and the spiral first stirring blade 27 installed on the rotating shaft 26 to move food waste in the screw direction. And a second stirring blade 28 provided on the coaxial and spirally provided in an inner region of the first stirring blade 27 to move the food waste in a screw reverse direction, wherein the first stirring blade ( 27 is a food waste drying apparatus, characterized in that the shovel member (29) for fixing the food waste spread on the bottom of the housing (19) is fixed. The method according to claim 1 or 2, The power transmission means, The drive motor 32 is installed on the lower side of the housing 19, the drive sprocket 33 is installed on the drive shaft 32a of the drive motor 32, and is installed on one end of the rotary shaft 26 and the drive Food spurs drying apparatus characterized in that it comprises a sprocket (33) and a driven sprocket (35) connected to the chain (34) to rotate the rotary shaft (26). The method of claim 1, The hot air circulation means, A blower 41 fixed to the housing 19 and provided with a heating member 43 to blow high temperature hot air into the housing 19, and a tubular connection to the cooling means, the housing 19, and the blower 41. And circulating paths (44, 45) for passing the hot water vapor evaporated from the food waste by hot air to the cooling means and returning it back to the blower (41). The method according to any one of claims 1 to 4, The cooling means, The cooler 51 and the internal space are installed in the cooler 51 and the internal space is cooled to a predetermined temperature, and the liquid is discharged to the outside by quenching and liquefying high temperature water vapor supplied from the housing 19, and the residual gas is blown by the blower 41. It is provided with a cooling chamber 52 for re-supply, wherein the cooling chamber 52 is characterized in that it comprises a plurality of induction plate 53 is installed to cross up and down so as to pass through the high temperature water vapor to form a wave Garbage Dryer. The method of claim 1, The discharge part 22 is installed in the discharge hole 22a formed in the bottom surface of the housing 19, the discharge opening and closing member 22b for opening and closing the discharge hole 22a, and the discharge opening and closing member 22b. And a sensing unit 23 for detecting a separation distance, wherein the sensing unit 23 is electrically connected to the control unit 36 so that the control unit 36 detects when the discharge opening / closing member 22b is opened. Food waste drying apparatus, characterized in that for receiving the detection signal of the 23 to provide a drive signal to the power transmission means.