KR102551334B1 - Apparatus and method for a drying carbonize of food waste - Google Patents

Abstract

The present invention relates to a food waste drying and carbonization apparatus and a food waste drying and carbonization method using the drying and carbonization apparatus. Its purpose is to improve recyclability.
To this end, the present invention is a case; It is formed inside the case, one end is open to allow food waste to be input, and an accommodation space is formed to accommodate the food waste by forming a predetermined space on the inside, and is formed on one side of the outside to accommodate the food waste. a chamber which includes a first heater to dry and carbonize the food waste contained in the chamber so that biochar is generated by drying and carbonizing the food waste; an air supply unit disposed at one side of the chamber to promote drying of the food waste by supplying heat to the accommodation space; and a deodorizing exhaust unit disposed on the other side of the chamber to remove odors from wet steam generated by drying or carbonizing food waste and to discharge filtered clean air to the outside.

Description

Apparatus and method for a drying carbonize of food waste}

The present invention relates to a food waste drying and carbonization apparatus and a food waste drying and carbonization method using the drying and carbonization apparatus, and more particularly, by forming biochar in which thermal decomposition is performed through drying and carbonization of food waste, It relates to a food waste drying carbonization apparatus and a food waste drying carbonization method using the drying carbonization apparatus to improve resource recycling by biochar.

In general, food waste generated in each household or large restaurants and catering establishments has a moisture content of 80 to 85%, so it is not only easily corrupted, but also difficult to separate, collect and transport due to the generation of odor and sewage, so the treatment of food waste is mainly It depended on the landfill method. However, as the amount of food waste increases exponentially, it is not only difficult to secure a landfill site, but also soil and water pollution, such as acidification of soil due to salt contained in food waste during landfill, is accelerated, and various odors and harmful It causes secondary pollution problems such as generation of gas. Here, food waste includes animal and vegetable residues generated in the manufacturing process of food as well as food waste generated in homes and restaurants.

Looking at a conventional food waste processor that dries and extinguishes food waste, as shown in FIG. 1, a stirring blade 2 is installed inside the drying bin 1 to stir the food waste accumulated therein, and the bottom of the drying bin 1 The food waste is dried by heating of the heater 3 installed therein.

However, conventional food waste processors have a problem in that, since food waste contains a lot of water, which is one of the characteristics of food waste, it takes a long time to simply stir the food waste through stirring blades and dry it by heat from a heater. In addition, as the drying time increases exponentially according to the amount of food waste, there is a problem in that the drying efficiency is lowered by the food processor.

Republic of Korea Patent Publication No. 10-2013-31512 (published on March 29, 2013)

As proposed to solve the above problems, an object of the present invention is to improve the recycling of resources by the biochar by forming biochar in which food waste is thermally decomposed through drying and carbonization. It is to provide a food waste drying carbonization apparatus and a food waste drying carbonization method using the drying carbonization apparatus.

As proposed to achieve the above object, the present invention is a case; It is formed inside the case, one end is open to allow food waste to be input, and an accommodation space is formed to accommodate the food waste by forming a predetermined space on the inside, and is formed on one side of the outside to accommodate the food waste. a chamber which includes a first heater to dry and carbonize the food waste contained in the chamber so that biochar is generated by drying and carbonizing the food waste; an air supply unit disposed at one side of the chamber to promote drying of the food waste by supplying heat to the accommodation space; and a deodorizing exhaust unit disposed on the other side of the chamber to remove odors from wet steam generated by drying or carbonizing food waste and to discharge filtered clean air to the outside.

In the present invention, between the chamber and the deodorizing exhaust unit, wet steam generated in the accommodation space of the chamber is received and the wet steam is condensed to separate it into condensed water and condensed steam, drain the condensed water to the outside, and the condensed steam It is preferable to include a; condensation unit for supporting the deodorization and exhaust to improve the deodorization efficiency through the deodorization and exhaust unit.

In the present invention, the chamber is formed to be in communication with one side of the accommodation space, and when biochar is produced by drying and carbonization, a discharge hole of a certain size is formed to discharge it to the outside; an agitation unit that agitates the food waste contained in the accommodation space to facilitate drying or carbonization, and facilitates discharging the biochar to the outside; A first communication port configured on one side and communicated so that hot air provided through the air supply unit enters the accommodation space; and a second communication port configured on the other side to support supplying wet steam to the condensing unit or the deodorizing exhaust unit; The first communication port includes a shut-off valve that opens and closes the first communication port so that the carbonization operation can be smoothly performed by blocking the inflow of oxygen when the carbonization operation is performed after the drying operation in the chamber; Preferably, the shut-off valve includes an on-off cylinder providing an external force so that the shut-off valve opens and closes the first communication hole.

In the present invention, the air supply unit, the air supply blower; an air supply pipe that is provided between the air supply blower and the chamber and supports air taken in through the air supply blower to enter the accommodation space; and a second heater configured at one side of the air supply pipe passage to heat the intake air entering the accommodation space through the air supply pipe passage to provide high-temperature heat to the accommodation space.

In the present invention, the deodorizing exhaust unit, an exhaust pipe connected to one side of the chamber to receive and transfer wet steam generated in the receiving space of the chamber; and a moisture deodorizing tank configured at one side of the exhaust pipe and supporting the primary filtering of the wet steam transported through the exhaust pipe.

In the present invention, the deodorization exhaust unit is configured on one side of the moisture deodorization tank, receives the air primarily filtered through the moisture deodorization tank, and filters it secondarily to support the clean air to be exhausted to the outside. It is preferable to include; member.

In the present invention, in the deodorizing exhaust unit, it is configured between the moisture deodorizing tank and the catalyst member, and heats the primary filtered air that is primarily filtered through the moisture deodorizing tank and transferred through the exhaust pipe to heat the primary filter. It is preferable to include; a third heater that activates the filtered air to support the secondary filtration efficiency through the catalyst member to be improved.

In the present invention, the condensation unit is provided with wet steam in the receiving space of the chamber, the condensation pipe for transporting it; a condensation blower provided on one side of the condensation pipe to provide blowing force so that the wet steam is condensed; a cooling fin disposed between the condensation conduit and the condensation blower to rapidly cool the condensation conduit by the blowing force of the condensation blower so that wet steam is condensed and separated into condensed water and condensed steam; And configured on one side of the condensation conduit, but configured on one side of the cooling fin, so that the condensed steam generated passing through the cooling fin is transferred to the deodorizing exhaust unit through the condensation conduit, and the condensate generated by the condensation of wet steam is discharged to the outside It is preferable to include; a first drain pipe that supports to drain to.

In the present invention, in a method for drying and carbonizing food waste using a food waste drying and carbonizing apparatus including a case, a chamber, an air supply unit, a condensing unit, and a deodorizing exhaust unit, food waste is introduced into the chamber through an inlet of the case. a food waste inputting step of closing the inlet of the case after inputting the food waste; When the input of food waste into the chamber is completed through the food waste inputting step, the food waste is stirred through an agitator configured in the chamber, and the chamber is heated to a predetermined temperature by a first heater configured on one side of the chamber, a drying step of drying the food waste by supplying hot air of a certain temperature provided from the air supply unit to the inside of the chamber; When the drying of the food waste is completed through the drying step, the heat supplied through the air supply unit is stopped and the first communication port connecting the chamber and the air supply unit is closed with a shut-off valve to prevent inflow of external air. a carbonization step of sealing and heating at a high temperature of a predetermined temperature in a first heater to carbonize the food waste stirred by the stirring unit to produce biochar; a cooling step of supporting the high-temperature biochar to be cooled by stopping the operation of the first heater and allowing the agitator to continuously stir when the generation of biochar is completed by the carbonization of food waste through the carbonization step; And when the biochar is cooled down to a certain temperature or less through the cooling step, the discharge port configured in the case is opened, and the biochar accommodated in the receiving space of the chamber is discharged to the outside through the discharge port by reverse stirring by reverse rotation in the stirring unit. It is preferable to include a; discharge step to enable.

According to the present invention, by forming biochar in which food waste is thermally decomposed through drying and carbonization, there is an effect of improving resource recycling by the biochar.

1 is a cross-sectional view of a conventional food processor.
2 is a process diagram of a food waste drying and carbonization apparatus according to the present invention.
3 is a schematic configuration diagram of a food waste drying and carbonization apparatus according to the present invention;
3a is an overall perspective view, 3b is an exploded perspective view of a part of the front case, 3c is a perspective view with the rear case separated, and 3d is a rear view.
4 is a configuration diagram of a chamber according to the present invention,
4a is a schematic configuration diagram, 4b is a configuration state diagram of a chamber configured in a case, 4c is a cross-sectional view, and 4d is a plan view.
5 is a schematic configuration diagram of an air supply unit according to the present invention.
6 is a schematic configuration diagram of a condensing unit according to the present invention.
7 is a schematic configuration diagram of a deodorizing exhaust unit according to the present invention.
8 is a process chart of a dry carbonization method according to the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The food waste drying and carbonization apparatus of the present invention forms biochar in which thermal decomposition is performed through drying and carbonization of food waste, thereby improving resource recycling by the biochar.

Here, as is well known, energy produced from biomass has a carbon-neutral character in that it does not release carbon dioxide into the atmosphere in terms of the carbon cycle. In addition, since biochar manufactured using biomass has a carbon negative property that sequesters carbon into the soil, it is suitable for resource recycling such as climate change response, environmental restoration, renewable energy, agricultural productivity improvement, organic waste resource management usefulness, etc. sex is improved The biochar is a solid material having a high carbon content produced when biomass (eg, food waste, etc.) is thermally decomposed (carbonized) under oxygen-limited conditions. In addition, since biochar is converted into non-decomposable carbon, which is a stable form through thermal decomposition, it is not easily decomposed by external factors, so it can contribute to mitigating climate change by capturing carbon dioxide and storing it for a long period of time. In addition, when biochar is introduced into the soil, chemical properties such as improved adsorption capacity, neutralization, and ion exchange capacity are improved, biological properties such as biomass increase and microbial activity increase by providing a habitat for microorganisms, and soil permeability increase, soil It can be widely applied in the environment and energy-related fields because it can improve agricultural productivity by improving physical properties such as improving the water holding capacity of soil and reducing the bulk density of soil.

As shown in FIGS. 2 and 3, the dry carbonization device includes a case 10, a chamber 20, an air supply unit 30, a condensation unit 40, and a deodorization exhaust unit 50. include

The case 10 serves to protect each component.

The case 10 is formed in a box shape.

In addition, an inlet 110 through which food waste can be put is configured on one side, for example, the upper end of the case 10, and on the other side, for example, the front bottom, the dried and carbonized biochar for the food waste can be discharged. An outlet 120 is configured.

A first opening/closing door 112 supporting the inlet 110 to be opened and closed through a cylinder is configured. In addition, the outlet 120 is provided with a second opening/closing door 122 that supports opening and closing through a cylinder.

In addition, the outer circumference of the case 10 is provided with a display window that allows the user to identify the power on / off, various control switches, or the operating state and operation of each component from the outside. A control panel 130 is included.

In addition, the case 10 is configured with double walls and heat-resistant and heat-insulating materials to prevent safety accidents such as burns by external users due to heating temperature and to be soundproofed to prevent noise generated during operation. can

The chamber 20 is configured inside the case 10 and supports input food waste to be dried and carbonized so as to form biochar.

As shown in FIG. 4, the chamber 20 has the shape of an enclosure and is configured such that, for example, the upper end is opened so that food waste is introduced through the inlet 110 of the case 10. An accommodating space 210 is formed to accommodate food waste by forming a predetermined space therein.

In addition, when food waste is produced as biochar through drying and carbonization, a discharge hole communicating with the discharge port 120 of the case 10 is discharged to one side of the receiving space 210. (212) is formed. At this time, a conduit supporting the discharge hole 212 and the discharge port 120 is formed so that the biochar can be stably discharged.

In addition, the chamber 20 includes an agitating unit 220 that agitates the food waste accommodated in the accommodation space 210 so that drying and carbonization can be performed quickly.

The stirring unit 220 prevents the food wastes accommodated in the accommodation space 210 from clumping together and forms a space between the food wastes to perform an agitation action so that drying and carbonization can be quickly performed.

The stirring unit 220 includes a motor 222, a rotating shaft 224, a power transmission member 226, and a stirring blade 228.

The motor 222 is configured on one side of the outside of the chamber 20 and generates rotational force by an externally supplied power source. In this case, the motor 222 may alternately provide forward rotational force and reverse rotational force when the food waste is agitated, and provide reverse rotational force when the food waste is discharged.

The rotating shaft 224 is configured to cross the inside of the chamber 20 laterally, and both ends are configured to be supported by the chamber 20 . In addition, bearings or bushings are configured at both ends of the rotating shaft 224 to freely rotate.

The power transmission member 226 is configured between the motor 222 and one end of the rotary shaft 224, and transmits the rotational force of the motor 222 to the rotary shaft 224 so that the rotary shaft 224 rotates at a low speed. support so that In this case, the power transmission member 226 is composed of a chain and sprocket method. Of course, it is not limited to this, and the power transmission member 226 may be configured in a belt and pulley method or a gear train method, etc., to rotate the rotation shaft 224 through the rotational force of the motor 222 Any structure or structure can be employed.

At least one stirring blade 228 is formed on the outer circumference of the rotating shaft 224 to stir the food waste accommodated in the accommodating space 210 of the chamber 20 . In this case, the stirring blades 228 are configured alternately at regular intervals along the longitudinal direction of the rotating shaft 224 .

In addition, the stirring blade 228 is formed at an angle symmetrical to each other around the center of the rotating shaft 224, so that the food pan is smoothly stirred during drying and carbonization, and drying And when the biochar produced by the completion of carbonization is discharged, the stirring blade 228 is rotated in reverse by the reverse rotational force of the motor 222, so that the biochar can be easily discharged.

That is, when the second opening/closing door 122 configured at the outlet 120 of the case 10 is opened, biochar is collected in the center by the reverse rotation of the stirring blade 228 and discharged naturally through the open outlet 120. By doing so, safety is ensured as the user does not separately collect biochar in the accommodating space 210 .

In addition, a first communication port 230 communicating with the air supply unit 30 is formed on one side of the chamber 20 .

The first communication port 230 supplies heat supplied through the air supply unit 30 to the accommodating space 210, so that food waste accommodated in the accommodating space 210 is rapidly dried.

In addition, when carbonization is performed in the chamber 20, the first communication port 230 blocks the provision of hot air, thereby supporting a shutoff valve 232 to allow smooth carbonization to be performed inside the chamber 20. ).

As shown in the enlarged view of FIG. 4D, the shut-off valve 232 is configured to open and close the pipe of the air supply unit 30, so that it is open when a drying operation is performed in the chamber 20 and closed when a carbonization operation is performed. The inflow of heat and outside air through the air supply unit 30, particularly oxygen contained in the outside air, into the chamber 20 is prevented from occurring due to oxygen during the carbonization process.

In addition, one side of the shut-off valve 232 includes an opening/closing cylinder 234 that maintains an open state in the case of a drying action and closes it in the case of a carbonization action.

The opening/closing cylinder 234 is configured on one side of the shutoff valve 232 to open and close the shutoff valve 232 . In this case, the opening/closing cylinder 234 may be a solenoid that electronically opens and closes the shutoff valve 232, or may be configured in a cylinder method using pneumatic or hydraulic pressure.

Of course, it is not limited thereto, and the shut-off valve 232 and the opening/closing cylinder 234 are the source of the inflow of heat or oxygen provided through the air supply unit 30 in the case of drying or carbonization of the chamber 20. Any structure or configuration that can be selectively opened and closed to enable blockade can be adopted.

In addition, a second communication port 240 communicating with the condensing unit 40 is formed on the other side of the chamber 30 .

The second communication port 240 is configured on the other side of the chamber 20 and forms a conduit to supply wet steam generated during drying and carbonization to the condensation unit 30 .

In addition, in the chamber 20, when the drying or carbonization is performed, the high-temperature heat acts on the receiving space 210 of the chamber 20, so that the drying or carbonization can be quickly performed. A heater 250 is included.

The first heater 250 is configured on one side of the outside of the chamber 20, for example, a lower end or a side surface, so that food waste accommodated in the accommodating space 210 of the chamber 20 is dried or carbonized smoothly by high temperature. make it happen In this case, the first heater 250 is configured to provide a high temperature of 150°C to 500°C. For example, the first heater 250 is an electric heater. Of course, the present invention is not limited thereto, and the first heater 250 may be any structure or configuration capable of heating the chamber 20 to a high temperature.

In addition, when the drying operation is performed in the chamber 20, the first heater 250 provides a high temperature of 300° C. or less so that the drying operation of the food waste is quickly performed together with the heat of the air supply unit 30, When carbonization is performed in the chamber 20, a high temperature of 300° C. or more is provided to promote carbonization of food waste. In this case, the first heater 250 may provide only high-temperature heat through the air supply unit 30 in the case of a drying operation, and may not provide high-temperature heat from the first heater 250 .

On the other hand, on one side of the chamber 20, the temperature of the accommodation space 210 is measured and a temperature change is sensed, thereby generating a control signal to discharge the biochar formed due to drying and carbonization to the outside. A temperature sensor 260 is included.

The first temperature sensor 260 is configured on one side of the chamber 20, measures the temperature of the accommodation space 210 of the chamber 20, and when it reaches a certain range, drying and carbonization are completed. , When the cooled temperature is reached through leaving it for a certain period of time, a sensing signal is sent to discharge the biochar produced by carbonization to the outside. In addition, the first temperature sensor 260 transmits an emergency sensing signal when an abnormal temperature is sensed during drying or carbonization in the accommodating space 210 to enable an emergency stop.

The air supply unit 30 is formed on one side of the inside of the case 10 and supplies high-temperature heat to the inside of the chamber 20, thereby accelerating drying of the food waste accommodated in the accommodation space 210.

As shown in FIG. 5 , the air supply unit 30 includes an air supply blower 310, an air supply pipe 320, and a second heater 330.

The air supply blower 310 sucks external air and supplies it to the receiving space 210 of the chamber 20 .

The air supply passage 320 is configured between the air supply blower 310 and the first communication port 230 of the chamber 20, and sucks air (hereinafter referred to as 'intake') of the air supply blower 310. It is supported so as to be provided inside the receiving space 210.

The second heater 330 is configured on one side of the air supply pipe 320 to heat intake air transported through the air supply pipe 320 so that high-temperature heat can be provided to the accommodation space 210. let it be In addition, the second heater 330 enables heating to 300°C or less. In this case, the second heater 330 is an electric heater.

The condensing unit 40 is configured inside the case 10 and is configured on the other side of the chamber 20 to receive wet steam generated during drying or carbonization of food waste accommodated in the accommodation space 210, and the like. condense and let it drain.

As shown in FIG. 6, the condensation unit 40 includes a condensation pipe 410, a condensation blower 420, a cooling fin 430, a first drain pipe 440, and a drain tank 450. , and a check valve 460.

The condensation pipe 410 is configured between the chamber 20 and the deodorizing exhaust unit 50 so that wet steam generated in the chamber 20 is transferred to the deodorizing exhaust unit 50 .

The condensation blower 420 is configured at one side of the condensation conduit 410 to suck in external air and support the condensation of wet steam or the like transferred through the condensation conduit 410 . In this case, the condensation blower 420 may be configured to directly cool the condensation conduit 410, and preferably, the condensation conduit 410 is sent to cool the cooling fins 430 configured on one side of the condensation conduit 410. Wind power is provided so that the cooling of the condensation pipe 410 is accelerated by the cooling fins 430 .

The cooling fin 430 is configured on one side of the condensation conduit 410, and as cooling is performed through intake air provided through the condensation conduit 420, wet steam transferred to the inside of the condensation conduit 410, etc. to promote condensation. In this case, the cooling fin 430 is configured to surround the outer circumference of the condensation conduit 410, or may be configured to be in close contact with one side, and the condensation conduit 410 is cooled by the cooling fin 430. Any structure or configuration that facilitates this can be adopted.

The first drain conduit 440 is configured at one side of the condensation conduit 410, for example, at a portion where wet steam or the like passes through the cooling fins 430, so that the wet steam or the like is condensed by the cooling action of the cooling fins 430 It is configured to drain the generated condensate to the outside.

That is, the cooling fin 430 is configured on one side of the condensation conduit 410 and the first drain conduit 440 is configured on one side of the cooling fin 430, so that the condensation conduit 410 As the wet steam passes through the cooling fin 430, it is separated into condensed water and condensed steam, and the separated condensed water is drained through the first drain pipe 440, and the condensed steam passes through the condensate pipe 410. It is transferred to the deodorizing exhaust unit 50.

The drain water tank 450 is configured at the end of the first drain pipe 440 to store the condensed water transported through the first drain pipe 440 and to drain it to the outside when it reaches a certain water level. In this case, a drain pipe for supporting condensed water to be drained is formed on one side of the drain tank 450, and one end of the drain pipe is configured to be lower than the water level of the drain tank 450. In addition, a purification device (not shown) is configured to prevent environmental pollution caused by the condensate by discharging the purified water obtained by purifying the discharged condensate at the end of the drain pipe to the outside.

The check valve 460 is configured on one side of the condensation duct 410 between the chamber 20 and the cooling fin 430, so that the wet steam provided through the chamber 20 does not pass through the cooling fin 430, It is supported to prevent transfer in the reverse direction. In some cases, the check valve 460 may be omitted.

That is, the check valve 460 is configured between the chamber 20 and the cooling fin 430, and wet steam entering the condensation pipe 410 is discharged for various reasons such as internal pressure or temperature difference of the chamber 20. It is not transferred to the side of the cooling fin 430 and flows backward so that the performance of condensation action such as wet steam is not hindered.

The deodorizing exhaust unit 50 is configured inside the case 10, receives the condensed steam provided through the condensing unit 40, and filters it so that clean air is discharged to the outside.

As shown in FIG. 7 , the deodorizing exhaust unit 50 includes an exhaust pipe 510, a moisture deodorizing tank 520, a third heater 530, and a catalyst member 540.

The exhaust duct 510 is configured between the end of the condensation duct 410 of the condensation unit 40 and one side of the case 10, while transferring the condensed steam provided through the condensation duct 410, the condensed steam It filters the odorous molecules contained in the filter so that the clean air can be exhausted to the outside.

In this case, the exhaust pipe 510 is configured between the first exhaust pipe 512 configured between the condensation pipe 410 and the moisture deodorizing tank 520 and between the moisture deodorizing tank 520 and the case 10 It is divided into a second exhaust pipe 514 to be.

The moisture deodorization tank 520 is configured at one side of the exhaust pipe 510 to first filter foreign substances such as odor molecules from the condensed steam transported through the exhaust pipe 510 through a wet adsorption method.

The moisture deodorization tank 520 is formed as a water tank in which a certain amount of water is stored.

In addition, an overflow pipe 522 is formed on one side of the moisture deodorization tank 520 to support a certain amount of water to maintain a certain water level.

That is, the moisture deodorizing tank 520 is a water tank, and is configured so that the end of the first exhaust pipe 512 is positioned in the water based on the water level, and the primary filtered air collected in the space above the water surface is A second exhaust pipe 514 is formed at one side of the upper end of the moisture deodorization tank 520 so that the second exhaust pipe 514 can be entered.

Accordingly, the condensed steam transported through the first exhaust pipe 512 is exhausted into the water, and foreign substances are firstly filtered by replacing the water with the condensed steam, and the firstly filtered air is moist. The collection is made above the water surface of the deodorization tank 520, and the primary filtered air collected above the water surface is directed to the catalyst member 540 through the second exhaust pipe 514 configured at the top of the moisture deodorization tank 520. are transferred

In addition, an overflow pipe 522 is configured on one side of the moisture deodorization tank 520 so that a constant water level is always maintained in the moisture deodorization tank 520, so that fresh water is continuously supplied from the outside, so that the Water contamination may occur during the primary filtration of the condensed steam through the moisture deodorization tank 520, but the primary filtration efficiency can be maintained by supplying fresh water.

In addition, one end of the overflow pipe 522 is configured at a position lower than the water level of the moisture deodorization tank 520, and the conduit discharged to the outside of the moisture deodorization tank 520 is the water level of the moisture deodorization tank 520. It is configured at a position equal to or slightly higher than the overflow action to drain the water molecules adsorbed by the odor molecules aerated in the water of the moisture deodorization tank 520, and the other end is the drain tank of the condensation unit 40 ( 450) It is configured on one side so that water molecules drained from the moisture deodorizing tank 520 are drained into the drain tank 450.

The third heater 530 is configured on one side of the exhaust pipe 510, that is, on one side of the second exhaust pipe 514 formed between the moisture deodorizing tank 520 and the catalyst member 540, As heat is applied, the primary filtered air is activated so that the secondary filtration efficiency through the catalyst member 540 is improved. In this case, the third heater 530 is heated to a high temperature of 200° C. or higher.

The catalyst member 540 is configured on one side of the second exhaust pipe 514 and secondarily filters the activated primary filtered air that has passed through the third heater 530 so that clean air is discharged to the outside of the case 10. By releasing it, it is possible to prevent contamination of the surrounding environment by odors generated during drying and carbonization of food waste.

The inside of the catalytic member 540 is formed in a honeycomb structure to increase the contact area with the primary filtered air exhausted through the second exhaust pipe 514 to improve filtration efficiency.

In addition, the catalytic member 540 has a honeycomb structure and is made of a metal having antibacterial and deodorizing properties at a portion in contact with the primary filtered air, so that the secondary filtration efficiency is improved. For example, the catalytic member 540 is coated or coated with titanium, copper, aluminum, or silver to a certain thickness on the surface of the honeycomb structure. Of course, it is not limited thereto, and the catalytic member 540 may be replaced with a filter cloth or a HEPA filter, and the structure allows the clean air to be exhausted to the outside by filtering the first filtered air secondly, Any configuration or material may be adopted.

On the other hand, the deodorizing exhaust unit 50 is configured on one side of the exhaust pipe 510, that is, the second exhaust pipe 514 formed between the third heater 530 and the catalyst member 540, to the second exhaust pipe. Measures the temperature of the primary filtered air transported through 514, and provides a control signal to increase the temperature or stop operation of the third heater 530 according to the sensed temperature value A second temperature sensor 550 is configured. In some cases, the second temperature sensor 550 may be omitted.

In addition, as shown in FIGS. 3D and 7, as air is supplied to the moisture deodorizing tank 520 in the deodorizing exhaust unit 50, the water accommodated in the moisture deodorizing tank 520 is activated by aeration by air. A suction blower 560 is included to facilitate the discharge of water molecules or filtered air into the furnace overflow pipe 522 or the second exhaust pipe 514.

The suction blower 560 forcibly injects fresh air from the outside into the moisture deodorizing tank 520 so that the water contained in the moisture deodorizing tank 520 is activated and the water molecules adsorbed with the contaminants contained in the water flow through the overflow pipe. 522 is supported to quickly enter, and air filtered by water is supported to volatilize above the water level of the moisture deodorizing tank 520. In this case, the suction blower 560 can be used as a ring blower or the like.

In addition, the suction blower 560 is extended from the suction blower 560 and is configured to be fresh in the water contained in the moisture deodorizing tank 520, so that fresh air sucked through the suction blower 560 is transferred to the moisture deodorizing tank. By exhausting in all directions of the 520, the injection pipe 562 is configured so that the aeration action can be performed smoothly.

In addition, the moisture deodorizing tank 520 is configured at a position higher than the level of water accommodated in the moisture deodorizing tank 520, and sprays water provided from the outside to the surface of the moisture deodorizing tank 520. It includes at least one or more injection nozzles 570 that support to improve filtration efficiency by adsorbing foreign substances included in volatilized air in a wet manner.

A food waste drying and carbonization method using the food waste drying and carbonization apparatus configured as described above is as follows.

As shown in FIG. 8, the dry carbonization method includes an input step (S1), a drying step (S2), a carbonization step (S3), a cooling step (S4), and a discharge step (S5). .

The inputting step (S1) is a step of inputting food waste so that the food waste is accommodated in the accommodating space 210 of the chamber 20.

This is done by opening the first opening/closing door 112 of the inlet 110 of the case 10 to input the collected food waste, and then closing the first opening/closing door 112 to enter the receiving space 210. Allow food waste to be accepted. At this time, when the first opening/closing door 112 and the second opening/closing door 122 configured in the outlet 120 of the case 10 are closed, the odor through the food waste is removed from the outside of the case 10. It is prevented from being released to maintain a pleasant surrounding environment.

Subsequently, by activating the ON switch for starting operation through the control panel 130 configured on one side of the case 10, drying and carbonization of the food waste are performed to produce biochar. let it be

The drying step (S2) is a step in which a drying operation is performed on the food waste accommodated in the chamber 20 when the inputting of the food waste into the chamber 20 is completed through the input step (S1).

This is due to the operation of the air supply blower 310 and the second heater 330 of the air supply unit 30 configured on one side of the chamber 20, so that heat of a certain temperature, for example, 300 ° C. or less is provided to the accommodation space 210. Accelerate drying on food waste.

In addition, as the stirring blade 228 of the stirring unit 220 rotates forward or backward when the stirring unit 220 configured in the chamber 20 is operated, food waste is stirred, thereby accelerating drying.

In addition, as the first heater 250 configured at one side of the chamber 20 heats the food waste to 300° C. or less, drying of the food waste is further accelerated.

In addition, wet steam, etc. generated during the drying process of food waste is provided to the condensing unit 40 configured on one side of the chamber 20, and by the action of the condensing unit 40, the wet steam, etc. is separated into condensed water and condensed steam. do. In addition, the condensed water is collected in the drain tank 450 through the first drain pipe 440 configured on one side of the condensing unit 40, and the condensed steam is deodorized exhaust unit 50 configured on one side of the condensing unit 40. ) is entered.

In addition, the deodorization exhaust unit 50 receives the condensed steam provided through the condensation unit 40 and transfers it to the moisture deodorization tank 520 through the exhaust pipe 510, and the moisture deodorization tank 520 filtered first. Subsequently, as the filtered air primarily filtered through the moisture deodorizing tank 520 enters the catalyst member 540 through the exhaust pipe 510, secondary filtration is performed through the catalyst member 540 to provide clean air. is exhausted to the outside. At this time, as the primary filtered air is heated by the third heater 530 before entering the catalyst member 540, the primary filtered air is activated, so that the filtration efficiency by the catalyst member 540 is improved. Thus, the filtration efficiency is further improved. In this case, a part of the clean air exhausted through the catalyst member 540 enters the chamber 20, and as the clean air is heated by the high temperature generated inside the chamber 20, the clean air can be included in the clean air. As pollutants are eliminated, the filtration efficiency for clean air is further enhanced. Of course, it is not limited thereto, and the clean air filtered through the catalyst member 540 may be discharged to the outside, or a separate pipe and valve may be configured to purify the clean air for a certain period of time. As possible, any method that can improve the filtration efficiency for clean air can be adopted.

As the stirring unit 220, the first heater 250, and the air supply unit 30 are operated to dry the food waste, the food waste having a moisture content of 10% to 20% is dried.

In the carbonization step (S3), when the drying of food waste having a moisture content of 10% to 20% is completed through the drying step (S2), carbonization is performed inside the chamber 20 to produce biochar. .

When the drying action on the food waste is completed through the stirring unit 220, the first heater 250, and the air supply unit 30, the shut-off valve configured in the first communication port 230 of the chamber 20 ( 232) to close the first communication port 230 to block the inflow of external air, especially oxygen, through the air supply unit 30, thereby preventing the occurrence of fire due to carbonization, so that stable carbonization can be performed. make it possible In addition, the reverse flow of wet steam through the condensation unit 40 is prevented by the check valve 460 configured in the condensation pipe 410 of the condensation unit 40, so that the inside of the chamber 20, that is, the accommodation space 210 ) remains closed.

Thereafter, as the chamber 20 is heated to a high temperature of 300° C. or higher by the first heater 250 together with the stirring action of the agitator 220, food waste dried in the sealed chamber 20 carbonization is performed. In addition, food waste dried by such carbonization is converted into biochar, and eventually biochar is generated in the accommodating space 210 of the chamber 20 by carbonization.

In addition, wet steam generated during the carbonization process in the chamber 20 is exhausted to the outside through the condensation unit 40 and the deodorization exhaust unit 50 to drain the condensed water and filter the condensed steam.

The cooling step (S4) is a step of cooling for a predetermined period of time, approximately 1 to 4 hours, when the carbonization of the food waste dried through the carbonization step (S3) is completed and biochar is produced.

When biochar is generated in the accommodating space 210 of the chamber 20 by carbonization, the stationary state is maintained for a certain period of time so that the biochar having a high temperature is cooled. At this time, the first heater 250 stops operating, and the stirring unit 220 maintains operation so that cooling is promoted. In addition, the first communication port 230 maintains a closed state by the shutoff valve 232 . When the internal temperature of the chamber is maintained below 200° C., cooling may be promoted by blowing air. In addition, wet steam continuously generated during the cooling process of the chamber 20 is discharged to the outside through the condensing unit 40 and the deodorizing exhaust unit 50.

In the discharging step (S5), when the cooling of the chamber 20 is completed through the cooling step (S4), the second opening/closing door 122 configured in the outlet 120 of the case 10 is opened to enter the interior of the chamber 20. This is the step of discharging the generated biochar to the outside.

When the cooling of the chamber 20 is completed, the collection container is placed in the outlet 120 of the case 10, and the second opening/closing door 122 configured in the outlet 120 is opened. The biochar produced by the configured stirring unit 220 is discharged to the outside.

That is, reverse rotational force is generated in the motor 222 of the stirring unit 220, and this reverse rotational force is transmitted to the rotating shaft 224 through the power transmission member 226, and the rotational shaft 224 rotates in the reverse direction. As the agitating blade 228 configured in 224 reversely rotates, the biochar generated in the accommodating space 210 of the chamber 20 is discharged through the discharge hole 212 configured on one side of the accommodating space 210, Discharge is made to the outside through the outlet 120 of the case 10 configured to communicate with the outlet hole 212 .

What has been described above is only one embodiment for carrying out the food waste drying and carbonization apparatus and the food waste drying and carbonization method using the drying and carbonization apparatus, and the present invention is not limited to the above embodiment. Those skilled in the art in the field belonging to the present invention will be able to understand that various modifications are possible without departing from the gist of the present invention.

10: case 110: inlet
112: first opening and closing door 120: outlet
122: second opening and closing door 130: control panel
20: chamber 210: receiving space
212: discharge hole 220: stirring unit
222: motor 224: rotation shaft
226: power transmission member 228: stirring blade
230: first communication port 232: shutoff valve
234: opening and closing cylinder 240: second communication port
250: first heater 260: first temperature sensor
30: air supply unit 310: air supply blower
320: air supply path 330: second heater
40: condensation unit 410: condensation tube
420: condensation blower 430: cooling fin
440: first drain pipe 450: drain tank
460: check valve 50: deodorization exhaust unit
510: exhaust pipe 512: first exhaust pipe
514: second exhaust pipe 520: moisture deodorization tank
522: overflow pipe 530: third heater
540: catalyst member 550: second temperature sensor
560: suction blower 562: injection pipe
570: injection nozzle

Claims (9)

case;
It is formed inside the case, one end is open to allow food waste to be input, and an accommodation space is formed to accommodate the food waste by forming a predetermined space on the inside, and is formed on one side of the outside to accommodate the food waste. a chamber which includes a first heater to dry and carbonize the food waste contained in the chamber so that biochar is generated by drying and carbonizing the food waste;
an air supply unit disposed at one side of the chamber to promote drying of the food waste by supplying heat to the accommodation space; and
a deodorizing exhaust unit disposed on the other side of the chamber to remove odors from wet steam generated by drying or carbonizing food waste and to discharge filtered clean air to the outside; Including,
the chamber,
A discharge hole of a certain size is formed to communicate with one side of the accommodation space so that when biochar is produced by drying and carbonization, it can be discharged to the outside;
an agitation unit that agitates the food waste contained in the accommodation space to facilitate drying or carbonization, and facilitates discharging the biochar to the outside;
A first communication port configured on one side and communicated so that hot air provided through the air supply unit enters the accommodation space; and
It is configured on the other side and includes a second communication port for providing wet steam to the condensation unit or the deodorizing exhaust unit;
The first communication port includes a shut-off valve that opens and closes the first communication port so that the carbonization operation can be smoothly performed by blocking the inflow of oxygen when the carbonization operation is performed after the drying operation in the chamber;
The shut-off valve includes an on-off cylinder providing an external force so that the shut-off valve opens and closes the first communication port,
The deodorizing exhaust unit,
A first exhaust pipe connected to one side of the chamber to receive and transfer wet steam generated in the accommodation space of the chamber;
A moisture deodorization tank configured at one side of the first exhaust pipe and supporting the primary filtering of the wet steam transferred through the exhaust pipe;
A second exhaust pipe, one end of which is connected to the moisture deodorizing tank and transports the primarily filtered air;
A catalyst member disposed on the second exhaust pipe to receive the air primarily filtered through the moisture deodorizing tank and filter it secondarily to support the clean air to be exhausted to the outside;
It is composed between the moisture deodorizing tank and the catalyst member, and heat is applied to the primary filtered air that is primarily filtered through the moisture deodorizing tank and transported through the second exhaust pipe to activate the primary filtered air and activate the catalyst member. Including a third heater that supports to improve the secondary filtration efficiency through,
The moisture deodorization tank is a water tank, and is configured such that an end of the first exhaust pipe is positioned in the water based on the water level, and the primary filtered air collected in the space above the water surface is discharged through the second exhaust pipe at one side of the upper end of the moisture deodorization tank. to allow access to the
A food waste drying and carbonization apparatus characterized in that a suction blower for injecting fresh air from the outside is connected to the moisture deodorization tank, and an injection pipe for smoothly performing an aeration action is installed at an end of the suction blower.
According to claim 1,
Between the chamber and the deodorizing exhaust unit, wet steam generated in the receiving space of the chamber is received and the wet steam is condensed to separate it into condensed water and condensed steam, drain the condensed water to the outside, and transfer the condensed steam to the deodorizing exhaust a condensing unit for supporting the deodorizing efficiency through the deodorizing exhaust unit by transferring the unit to the deodorizing exhaust unit;
Food waste drying carbonization apparatus comprising a.
delete The method of claim 1, wherein the air supply unit,
supply air blower;
an air supply pipe that is provided between the air supply blower and the chamber and supports air taken in through the air supply blower to enter the accommodation space; and
a second heater configured at one side of the air supply pipe passage to heat the intake air entering the accommodation space through the air supply pipe passage so that high-temperature heat is supplied to the accommodation space;
Food waste drying carbonization apparatus comprising a.
delete delete delete The method of claim 2, wherein the condensing unit,
A condensation pipe that receives wet steam from the receiving space of the chamber and transfers it;
a condensation blower provided on one side of the condensation pipe to provide blowing force so that the wet steam is condensed;
a cooling fin disposed between the condensation conduit and the condensation blower to rapidly cool the condensation conduit by the blowing force of the condensation blower so that wet steam is condensed and separated into condensed water and condensed steam; and
It is configured on one side of the condensation conduit and is configured on one side of the cooling fin so that the condensed steam generated passing through the cooling fin is transferred to the deodorizing exhaust unit through the condensation conduit, and the condensate generated by the condensation of wet steam to the outside A first drain line that supports draining;
Food waste drying carbonization apparatus comprising a.
delete

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