KR101936872B1 - A Food waste disposal apparatus - Google Patents

Abstract

The present invention relates to a food waste composting device treating food waste to use the food waste as compost. According to this embodiment of the present invention, the food waste composting device includes: a grinding unit including a pair of grinding rollers rotating and grinding the food waste; an enzyme decomposing unit including a mixing wing which mixes the inserted food waste and decomposition enzyme, wherein the enzyme decomposing the food waste is inserted into the enzyme decomposing unit so that the food waste ground by the grinding unit is decomposed to minute particles of sludge by reacting with the decomposition enzyme; a salt removing unit including a desalination tank accommodating water to dissolve salt of the sludge decomposed by the enzyme decomposing unit in water and remove the salt, wherein sludge is inserted into the desalination tank; a centrifugation unit including a centrifugal member rotating to separate the sludge in which the salt is removed by the salt removing unit from the water by centrifugal force; a hot air device supplying hot air to heat the sludge divided from the water in the centrifugation unit and sterilize the sludge; a sterilizing unit including the mixing wing mixing the sludge and the hot air for the hot air to be evenly in contact with the sludge; and a storage unit storing the compost manufactured by the sterilizing unit. The food waste composting device includes a main body case accommodating the grinding unit, the enzyme decomposing unit, the salt removing unit, the centrifugation unit, the sterilizing unit, and the storage unit. Therefore, the food waste composting device is easily installed and operated. Also, the food waste composting device can reduce the generation of foul odors and minimize environmental pollution.

Description

{A Food waste disposal apparatus}

The present invention relates to a food waste composting apparatus for treating food waste for compost use.

Generally, the amount of food waste is increased due to the increase in the number of people, and the food waste is incinerated without being buried because environmental pollution occurs when the food waste is buried. However, due to the generation of toxic gas due to incineration and leachate There is a problem that a secondary environmental pollution occurs due to the water.

In order to solve this problem, a method of composting organic wastes such as food waste has been disclosed in Korean Patent Registration No. 10-0577841 (published on Dec. 12, 2006).

Conventional methods for composting organic wastes such as food wastes include pretreatment such as removal of foreign matter, crushing, dehydration, and desalting after organic wastes such as food wastes

After adding the bulking agent and other additives to adjust the water content to about 60 wt%, it is sent to the fermentation maturing process. When the fermentation is completed, the fermentation is transferred to a foreign material sorter to separate and remove the foreign materials. To promote the reduction of odor generation and fermentation, corrosion microorganisms that excrete polyphenol metabolites that convert organic substances into stable corrosion substances in the microbial culture process using leachate discharged from the fermentation aging process, and microorganisms And cultivated soil microorganisms in mutual symbiotic relationship, and fed to the fermentation aging process, thereby making it possible to produce ripe compost while shortening fermentation aging period and reducing odor generation.

However, conventional methods for composting organic waste materials such as food garbage are difficult to transport, install, and maintain due to the large facility for treating food waste, and in addition, food waste is settled in a tank containing food waste in each processing step There was a hassle in maintaining maintenance that had to be cleaned periodically.

In addition, since the water used in the treatment process is abandoned to the outside, not only the environmental pollution occurs but also the stirrer efficiency is lowered because it is not uniformly stirred because only the stirrer is used for the reaction at the time of fermentation with the food waste .

In addition, there is a problem that the process is externally monitored or the control of the equipment is difficult because of difficulty in control.

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a food waste disposal apparatus and a method of disposing food waste in a water tank containing food waste during processing, It is possible to prevent environmental pollution by minimizing external discharge of water treated with food waste, improve the treatment efficiency of food waste, monitor and control the operation status from the outside, And to provide a food waste composting device that can be operated.

According to an aspect of the present invention, there is provided a food waste composting apparatus including a crushing unit including a pair of rotating crushing rollers for crushing food waste, a crushing unit crushing the crushed food waste in the crushing unit, An enzyme digesting unit including a digesting enzyme for digesting the food waste so as to be decomposed into fine sludge and stirring the digested enzyme and food wastes; A centrifugal separator including a centrifugal member rotating to separate the desalted sludge from the desalinated water by centrifugal force, the centrifugal separator comprising a centrifugal separator for separating the desalinated sludge from the desalted water, The sludge separated from the water in the centrifugal separator is heated and sterilized by hot air A sterilizing unit including a mixing blade for mixing the hot air and the sludge so that the hot air is always in contact with the sludge; and a storage unit for storing the compost produced by the sterilizing unit, wherein the crushing unit, And a main body case accommodating the desalination unit, the centrifugal separator, the sterilizing unit, and the storage unit.

The crushing unit may include a crushing roller that rotates in a direction in which the pair of crushing rollers face each other so that the food waste is crushed to a size larger than that crushed by the crushing roller before the food waste enters the crushing roller.

The main body case may include a feeding port through which the food waste is fed, and a feeding part for feeding the food waste from the feeding port to the crushing part and feeding the food waste to the feeding port.

The centrifugal separator includes a return pipe for returning water separated by the centrifugal force to the desalted water tank through the centrifugal separator. The water discharged through the return pipe is partially supplied to the deionized water tank And a free moving body for floating the sludge accumulated on the bottom of the demineralized water tank.

And a speed regulating valve installed in the return pipe and regulating the speed at which the free moving body freely moves according to the pressure of water supplied to the free moving body by regulating the pressure of water discharged to the free moving body and the desalted water tank, A moving body connecting hose for supplying water discharged from the regulating valve to the free moving body to the free moving body and flexibly connecting the free moving body and the speed regulating valve so that the free moving body is freely moved without being constrained by the speed regulating valve, .

Wherein the free moving body includes a water supply unit that is supplied with water supplied through the return pipe, a motion body that is installed to rotate in the water supply unit about the water supply unit, a scraping unit that reduces frictional force between the motion body and the bottom of the demineralized water tank, A friction reducing jet opening for jetting a part of the water supplied to the supplying section to the bottom of the moving body and a moving part for discharging the remaining part of the water supplied to the supplying section from the supplying section to the supplying section so as to freely move, And may include a jetting port.

Wherein the centrifugal separator includes a pressure-increasing impeller which rotates with the centrifugal member to increase the pressure of the water separated and discharged by the centrifugal force in the centrifugal separator to the return pipe, And may be configured to be supplied with the free moving body and move freely.

And an air pipe for mixing air with water supplied to the return pipe such that bubbles are generated in the desalted water tank and the sludge is floated by the bubbles.

And a controller for controlling the crushing unit, the enzyme decomposition unit, the salt rejection unit, the centrifugal separation unit, the sterilization unit, and the storage unit. The controller transmits status information and control signals to the external And an IOT communication module for communicating with the device.

According to the present invention, the structures for treating food garbage are all installed inside the main body case to facilitate transportation and installation, and the driving unit to be driven is located on the side of the main body case, .

In addition, since the food waste is crushed by the crushing roller and the crushing roller, the hard food waste having a high hardness can be easily pulverized and treated, and the food waste is decomposed by the decomposition enzyme in the enzyme decomposition section, .

In addition, the sludge separated from the centrifugal separator and the separated water can be re-supplied to the desalted water tank without being discharged to the outside, thereby minimizing the occurrence of environmental pollution. The microorganisms used in the desalination water treatment plant are introduced into the desalted water tank, So that the occurrence of environmental pollution can be minimized.

In addition, bubbles are generated when air is mixed with water supplied from the centrifugal separator by air piping and returned to the demineralized water bath. The free moving body is free to move on the bottom of the demineralized water bath by the pressure of water returned from the centrifugal separator, The food garbage settled in the tank can be floated so as to prevent the generation of odor and contamination caused by the sedimentation of the food garbage in the demineralized water tank.

In addition, the IOT communication module can interoperate with an external device to monitor the operation state, and can easily control and operate the device conveniently.

1 is a front sectional view schematically showing a food waste composting apparatus according to an embodiment of the present invention.
2 is an enlarged view of the desalination unit and the centrifugal separator of the food waste composting apparatus according to the embodiment of the present invention.
3 is an enlarged view of a centrifugal separator of a food waste composting apparatus according to an embodiment of the present invention.
4 is a perspective view illustrating a free moving body of a food waste composting apparatus according to an embodiment of the present invention.
5 is a side cross-sectional view illustrating a free moving body of a food waste composting apparatus according to an embodiment of the present invention.

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

As shown in FIG. 1, the food waste composting apparatus 100 according to an embodiment of the present invention may include a main body case 110.

The main body case 110 is formed in an empty box shape, and each of the configurations described below can be accommodated in the inner space.

The body case 110 may be provided at one side of the body case 110 with an inlet 111 for introducing food waste into the body case 110. The food waste introduced into the inlet 111 may be introduced into one side of the body 110, A transfer part 115 for transferring the transfer material to an upper part of the transfer part 110 may be located.

A plurality of conveying belts may be formed along the conveyor belt to convey food waste to the upper portion of the conveyor belt. In the conveying unit 115, A fork having a plurality of fins arranged in parallel may be provided so as to filter out foreign matter such as an envelope, so that the food waste can be configured to filter out foreign matter passing through the fork.

A driving unit 117, in which a motor and driving mechanisms for driving the respective components are installed, may be disposed in a direction opposite to the direction in which the transfer unit 115 of the main body case 110 is installed.

At this time, the main body case 110 is opened and closed in order to maintain the positions where the conveying unit 115 and the driving unit 117 are positioned, and the structures located at the center of the driving unit 117 and the conveying unit 115, .

In addition, the main body case 110 may be provided with an emergency input port 113 which can be directly inserted through the upper portion of the main body case 110 without passing through the transfer unit 115.

The emergency input port 113 corresponds to the enzyme decomposing unit 130 so that the food waste can be inputted into the enzyme decomposition unit 130 without going through the crushing unit 120 in accordance with the failure of the operation of the crushing unit 120 As shown in FIG.

Of course, the decomposition enzyme may be supplemented to the enzyme decomposition unit 130 through the emergency inlet 113

A plurality of moving wheels 119 may be installed on the bottom of the main body case 110 to facilitate movement.

As shown in FIG. 1, the food waste composting apparatus 100 according to the embodiment of the present invention may include a crushing unit 120.

The crushing unit 120 can crush the food waste supplied through the feed unit 115.

Meanwhile, the crushing unit 120 may include a crushing roller 121 and a crushing roller 123.

The crushing roller 121 can crush the relatively large sized food waste to a small size and the crushing roller 123 can crush the crushed food waste in the crushing roller 121 to a smaller size.

On the other hand, the crushing roller 121 is configured to rotate in the direction in which the pair of the crushing rollers 121 are opposed to each other, so that the food waste introduced into a pair of opposing crushing rollers 121 can be crushed, A plurality of cutting blades having blades are spaced apart from each other, and the cutting edges of the pair of the disintegration rollers 121 are inserted between the spaced apart portions so that the food waste can be crushed by mutual rotation.

The crushing roller 123 is located below the crushing roller 121 and is configured to rotate in a direction in which the pair of crushing rollers 123 face each other like the crushing roller 121, Trash can be crushed.

At this time, on the outer surface of the crushing roller 123, a crushing pattern of irregular shape can be formed so as to crush food waste into a particulate form.

The crushing roller 121 and the crushing roller 123 may be configured to rotate together by a power transmitting member such as a gear, a chain, a belt, or the like by one crushing motor 127, The crushing motor 127 for driving the roller 123 may be installed on the driving unit 117 in the main body case 110 and configured to rotate by receiving power from the power transmitting member.

Here, the food waste is first crushed to a small size at the crushing roller 121 and secondarily crushed to a smaller particle size than the crushed size at the crushing roller 123, so that the load applied to the crushing motor 127 It is possible to easily grind food waste having a high hardness such as meat bones, fish oil, shellfish, dried fruits, seeds of fruits, vegetables such as garlic stand and cornstalks into granular form.

In addition, the crushing unit 120 may include a feed-through screw 125.

The feed screw 125 is crushed so as to be supplied to the center of the enzyme decomposing unit 130, which will be described later, through the crushing roller 121 and the crushing roller 123 of the crushing unit 120, Food waste can be transferred.

As shown in FIG. 1, the food waste composting apparatus 100 according to the embodiment of the present invention may include an enzyme decomposition unit 130.

The enzymatic decomposition unit 130 can decompose the food waste by the decomposing enzyme so that the foodstuffs crushed in the crushing unit 120 become smaller particulate sludge.

On the other hand, the decomposing enzyme introduced into the food waste in the enzyme decomposing unit 130 may include lipase, protease, or a mixture thereof.

Here, the lipase can decompose fat, the protease can decompose the protein, and the decomposition enzyme can be a variety of known decomposition enzymes capable of decomposing food waste.

At this time, as the food waste is decomposed by the decomposing enzyme in the enzyme decomposing unit 130, the generation of odor can be reduced.

In addition, the degrading enzyme may be supplied to the enzyme decomposing unit 130 in a state of being impregnated with the carrier 135 having elasticity and having a porous property, and may be supplied as food waste. Here, when the carrier 135 is not used, the amount of the lysis of the lytic enzyme is so large that the treatment cost due to the supply of the lytic enzyme may be increased.

The enzyme decomposition unit 130 may include a stirring blade 131 and a screen net 133.

A plurality of stirring wings 131 are provided around the axis in the horizontal direction to stir the food waste and the decomposition enzyme supplied to the enzyme decomposition unit 130 according to the rotation. Only the sludge decomposed by the decomposing enzyme, which is composed of the screen net 133 formed with the holes of the preset size and has a predetermined size, is passed through the screen net 133, 140, respectively.

The stirring motor 137 that rotates the stirring wing 131 is located in the driving portion 117 of the main body case 110 and directly transmits the power or indirectly transmits the power by the power transmitting member to the stirring wing 131 Can be rotated.

As shown in FIGS. 1 and 2, the food waste composting apparatus 100 according to an embodiment of the present invention may include a salt removal unit 140.

In the desalination unit 140, the sludge generated by decomposing the food waste in the enzyme decomposing unit 130 may be immersed in water, and the saline contained in the sludge may be dissolved in water.

Since the food waste is high in salinity, the plant may be damaged due to salinity when the state is used as a compost. Therefore, the salt remover 140 removes the salt contained in the sludge in a form to dissolve the salt.

On the other hand, the desalination unit 140 may include a desalting unit 141, and the desalting unit 141 may be supplied with water.

The desalination unit 140 can prevent the sludge from sinking on the floor by the bubble to be described later, thereby increasing the removal rate of the salt.

The bubble will be described in more detail when the centrifugal separator 150 will be described below.

In the demineralized water tank 141, a water tank outlet for discharging the stored water to the outside may be formed. In the demineralized water tank 141, microorganisms used in the sewage water treatment apparatus are introduced, The occurrence can be minimized.

As shown in FIGS. 2 and 3, the food waste composting apparatus 100 according to the embodiment of the present invention may include a centrifugal separator 150.

The centrifugal separator 150 is disposed on the side of the desalination unit 140, and the desalinated sludge is supplied from the desalination unit 140 to separate water and sludge.

Meanwhile, the centrifugal separator 150 may include a centrifugal member 152, a centrifugal casing 154, a return pipe 158, a booster casing 155, a booster impeller 156, and a speed control valve 159 .

The centrifugal member 152 may be configured to receive and discharge the sludge mixed with water in the desalination unit 140 and separate and discharge the water and the sludge by the centrifugal force generated by the rotation.

In the embodiment, a spiral-shaped centrifugal screw 153 may be formed around the centrifugal member 152, and the sludge mixed with water may be supplied to the inside of the centrifugal shaft along with water, and may be jetted outwardly by centrifugal force.

At this time, the portion of the centrifugal member 152 provided with the sludge mixed with water is connected to the desalination unit 140 so that the inflow port 151 through which the sludge mixed into the water flows is formed from the desalination unit 140 have.

A portion of the centrifugal screw 153 which is coupled to the centrifugal member 152 may be formed with a flow hole through which the water may pass and the centrifugal screw 153 may be formed so that the diameter gradually decreases toward the direction of discharging the separated sludge .

The centrifugal casing 152 may be installed at the center of the centrifugal casing 152. The centrifugal casing 152 may be provided with a centrifugal member 152 through which the sludge is supplied to the center of the centrifugal member 152, The water collected in the inner periphery of the centrifugal casing 154 and separated from the sludge can escape through the sludge adhered to the inner periphery and the centrifugal member 152.

At this time, a sludge discharge port 154a through which the sludge is discharged may be formed at one end of the centrifugal casing 154, and a water discharge port 154b through which water separated from the sludge is discharged may be formed at the other end of the centrifugal casing 154 have.

The centrifugal casing 154 may be formed so that its diameter becomes gradually smaller toward the sludge outlet 154a as in the case of the centrifugal screw 153. The diameter of the centrifugal screw 153 The smaller part can be located.

The water discharge port 154b is formed at the end of the centrifugal casing 154. The water discharge port 154b may receive the water discharged from the water discharge port 154b. A pressure-controlled impeller 156 coupled to the centrifugal member 152 and coupled to the centrifugal member 152 may be provided.

Here, the pressure-increasing impeller 156 is rotated together with the centrifugal member 152 to discharge the water discharged to the water discharge port 154b at a higher pressure. The pressure-increasing casing 155 is pressurized by the pressure-increasing impeller 156, A pressure-increasing discharge port through which water is discharged can be formed.

In addition, a return pipe 158 for supplying water to the desalted water tank 141 with an increased pressure may be connected to the pressurized discharge outlet.

Here, the end of the return pipe 158 located in the desalting tank 141 may be positioned lower than the water level of the water contained in the desalting tank 141. That is, it can be located in the water.

In addition, the booster casing 155 may be provided with an air line 157 through which air is introduced into the desalted water tank 141 so that bubbles may be generated by mixing air with the increased pressure, The air generated by the rotation of the impeller 156 can be mixed with the water discharged to the water discharge port 154b into the inside of the booster casing 155 through the air piping 157. [

A part of the discharged water is supplied to the desalting tank 141 and the remaining part of the water is supplied to the free moving body 160 to be described later and the desalting tank 141 or the free moving body 160, A speed regulating valve 159 for regulating the pressure of water supplied to the regenerator 160 may be installed.

The speed control valve 159 may be implemented as a three-way valve and the speed control valve 159 may include a desalting tank 141 and a free moving body 160, And the pressure of the water supplied to the free moving body 160 can be adjusted.

On the other hand, the centrifugal member 152 may be installed to be rotatable by a centrifugal motor provided in the driving unit 117, and the centrifugal motor may directly transmit the power or indirectly transmit power to the centrifugal member 152 by the power transmitting member To rotate the centrifugal member (152).

When the centrifugal motor rotates the centrifugal member 152, the centrifugal separator 150 is provided with the sludge into which the water is introduced into the inlet 151 of the centrifugal member 152 connected to the desalting tank 141, The centrifugal force is generated by the member 152, and the supplied water and sludge are injected into the inner circumference of the centrifugal casing 154.

The sludge having a high specific gravity is brought into close contact with the inner periphery of the centrifugal casing 154 and the water is positioned between the centrifugal member 152 and the sludge and the centrifugal screw 152 is rotated together with the rotation of the centrifugal member 152 The sludge in close contact with the inner periphery of the centrifugal casing 154 is transported toward the sludge discharge port.

At this time, since the diameter of the inner circumference of the centrifugal casing 154 decreases toward the sludge discharge port, the water contained in the sludge may be removed in a manner that water is squeezed into the sludge while the sludge is pressurized.

On the other hand, the water positioned between the sludge and the centrifugal member 152 can not be discharged in the direction in which the sludge discharge port 154a is raised by the sludge conveyed along the centrifugal screw 153, (154b).

The water discharged to the water discharge port 154b is supplied to the return pipe 158 through the pressure-increasing and discharging outlet by the pressure-increasing impeller 156 provided in the pressure-increasing casing 155.

Here, air is sucked into the booster casing 155 through the air pipe 157 so that air is mixed with water discharged to the water discharge port 154b, and is discharged through the pressure-discharge port.

The water discharged to the pressurized discharge port is supplied to the desalted water tank 141 through the return pipe 158. The return pipe 158 is provided with a speed control valve 159 and a part of the water is supplied to the desalted water tank 141 And the remaining part is provided to the free moving body 160. [

Since the water supplied to the desalting water tank 141 through the return pipe 158 is mixed with air by the air pipe 157, when the water is injected into the water, bubbles are generated, By allowing the bath 141 to float in the water without sinking on the floor, the contact area between the sludge and the water can be widened to improve the salt removal effect.

The desalination filter 159a is installed in the return pipe 158 to reduce the salinity of the water supplied to the desalting tank 141. The desalting filter 159a is connected to the membrane filter Can be implemented.

Membrane filters can remove up to 95% of salt.

Although the centrifugal separator 150 is described as a screw type in which the centrifugal member 152 is provided with the centrifugal screw 153, the centrifugal member 152 may be of a dehydrating type in which a cylindrical net for filtering the sludge is disposed in the centrifugal member 152 .

2, 4, and 5, the centrifugal separator 150 may further include a free moving body 160 and a moving body connection hose 169.

The free moving body 160 receives part of the water supplied to the desalinated water tank 141 through the speed control valve 159 provided in the return pipe 158 and moves freely at the bottom of the desalinated water tank 141, The sludge accumulated on the bottom of the sludge can be floated.

When the sludge is accumulated on the bottom of the demineralized water tank 141, the sludge can easily fall off due to the water, and the generation of odor and contamination due to the growth of bacteria may occur. It is best to provide it promptly.

The free moving body 160 can freely move in the form of spraying water at the bottom of the desalting water tank 141. The speed control valve 159 and the free moving body 160 are connected to the moving body connecting hose 169 flexibly bent, So that water can be supplied from the free moving body 160 and can be freely moved.

The free moving body 160 is formed of a material having a specific gravity higher than that of water and can move freely from the bottom of the demineralized water tank 141 while the free moving body 160 slips from the water. 163).

The water supply unit 161 may be coupled to the moving body connection hose 169 to receive water and the movement body 163 may be formed in a disk shape having a larger circumference than the circumference of the water supply unit 161.

The main body 163 is rotatably installed in the water supply unit 161 and a friction reducing jet opening 165 for spraying a part of water supplied to the water supply unit 161 is formed on the bottom surface of the main body 163 And an ejection opening 167 for ejecting the remaining part of the water supplied to the water supply unit 161 in the lateral direction of the main body 163 may be formed around the main body 163.

At this time, the movement jetting port 167 is formed to be inclined in the lateral direction around the movement body 163, so that the movement body 163 can be rotated by the jetted water.

When the water supplied from the speed control valve 159 is supplied to the water supply unit 161 through the moving body connection hose 169, a part of the water to be supplied is jetted to the friction reduction jet opening 165 The motion body 163 is slightly lifted from the bottom of the demineralized water tank 141 and the remaining part of the water supplied to the water supply unit 161 is discharged through the motion jetting port 167 around the free moving body 160 .

When the water is sprayed through the movement jetting port 167, the water main body 163 rotates in the water supply part 161 and the centrifugal force of the rotating body 163 and the pressure of the water jetted unevenly through the jet opening 167 The free moving body 160 moves around the bottom of the demineralized water tank 141 freely to float the debris accumulated on the bottom of the demineralized water tank 141.

At this time, since the water supplied to the free moving body 160 from the speed control valve 159 includes air, the water is injected through the movement injection port 167 and the friction reducing injection port 165 of the free moving body 160, So that the flood effect of the sludge can be enhanced.

The speed of the free moving body 160 may be adjusted to adjust the pressure of water discharged through the free moving body 160 in a form of adjusting the pressure of water supplied from the speed adjusting valve 159 to the free moving body 160 .

As shown in FIG. 1, the food waste composting apparatus 100 according to the embodiment of the present invention may include a sterilizing unit 170.

The sterilizing unit 170 is disposed below the centrifugal separator 150 and sterilizes the sludge by heating the sludge by receiving the sludge separated from the water through the sludge outlet 154a of the centrifugal separator 150 .

On the other hand, the sterilizing unit 170 may include a sterilizing vane 171 and a hot air unit 173.

The hot air device 173 can heat and sterilize the sludge in the form of providing hot air to the sterilizer 170, and sterilize the sludge by heating.

The hot air device 173 may include a heater that is heated by electricity or gas, and a blower that generates wind, and the wind of the blower may be heated while passing through the heater to generate hot air.

The sterilizing blade 171 may mix hot air into the sludge so that hot air supplied to the sterilizing unit 170 may be mixed with the sludge uniformly and the sterilizing vane 171 may be rotated by the sterilizing motor .

Here, the hot air is formed by a hot air flow path through which hot air is supplied to the blade shaft where the sterilizing blade 171 and the sterilizing blade 171 are installed, and hot air holes through which hot air is sprayed to the blade shaft and the sterilizing blade 171 are formed, The hot air is sprayed through the ball, and the sterilization effect can be improved by supplying hot air to the deep part of the sludge.

A compost outlet for discharging the compost produced by drying the sludge with the storage part 180 located at the side of the sterilizing part 170 may be formed on the upper side of the sterilizing part 170.

As shown in FIG. 1, the food waste composting apparatus 100 according to the embodiment of the present invention may include a storage unit 180.

The storage unit 180 may store the compost produced through the sterilizing unit 170.

The storage unit 180 may be disposed in the lateral direction of the sterilization unit 170 and may receive compost discharged from the compost outlet of the sterilization unit 170. The storage unit 180 may be a container So that the compost can be removed.

1, the food waste composting apparatus 100 according to an embodiment of the present invention may include a controller 190 and an IOT communication module 191.

The controller 190 includes the transfer unit 115, the crushing unit 120, the centrifugal separator 150, the enzyme decomposition unit 130, the desalination unit 140, the centrifugal separator 150, the sterilization unit 170 ) Can be controlled.

For example, the controller 190 controls the conveying speed of the conveying unit 115, the crushing speed of the crushing unit 120, the rotating speed of the stirring blades 131 of the enzyme decomposing unit 130, The temperature of the hot air device 173, the rotational speed of the sterilizing vane 171, and the like.

In addition, the controller 190 can control not only the respective components but also the operation status, and the controller 190 includes the IOT communication module 191 to transmit the control signal and the monitored information to the object Internet (IOT) To the external device, or can be provided from the external device and controlled.

At this time, the external device may be an individual terminal owned by a manager who manages the food waste composting apparatus 100, or an integrated management server integratedly managed.

The operation and effects of the above-described respective structures will be described.

The food waste composting apparatus 100 according to the embodiment of the present invention is configured such that food waste is introduced through the inlet 111 of the main body case 110 and then discharged through the feeding unit 115 into the main body case 110, (120).

On the other hand, the food waste supplied to the crushing unit 120 by the conveying unit 115 is first crushed by the crushing roller 121, and secondarily crushed by the crushing roller 123 into the form of particles, The waste is supplied to the enzyme decomposition unit 130 through the feed screw 125.

The food waste provided to the enzyme decomposing unit 130 is decomposed while being stirred with the decomposition enzyme impregnated into the support 135 by the stirring wing 131 and is then decomposed into the holes of the screen net 133 of the enzyme decomposing unit 130 The sludge is introduced into the desalting bath 141 of the desalination unit 140 located below the enzyme decomposing unit 130 through the screen net 133.

At this time, as the food waste is decomposed into sludge by the decomposing enzyme in the enzyme decomposing unit 130, the generation of odor can be minimized.

On the other hand, the sludge introduced into the desalting water tank 141 is dissolved and removed by the water, and is supplied together with the water to the centrifugal separator 150 located on the side of the desalting tank 141.

The sludge contained in the water supplied to the centrifugal separator 150 is supplied through the center of the centrifugal member 152 and is discharged from the center by the centrifugal member 152 located around the rotating centrifugal member 152 The sludge having a heavy specific gravity is closely adhered to the inner circumference of the centrifugal casing 154 that receives the centrifugal member 152 and water is separated from the sludge in such a manner that water is positioned between the centrifugal member 152 and the sludge do.

The sludge closely attached to the inner periphery of the centrifugal casing 154 moves in a direction in which the sludge outlet 154a is positioned by the centrifugal screw 153 formed in a spiral shape around the centrifugal member 152, The water which can not move in the direction in which the discharge port 154a is positioned is discharged through the flow hole of the centrifugal screw 153 to the water discharge port 154b located in the direction opposite to the sludge discharge port 154a.

On the other hand, the water discharged to the water discharge port 154b is supplied to the booster casing 155, and the water supplied to the booster casing 155 is increased in pressure by the booster impeller 156 provided in the booster casing 155, And is discharged to the discharge port.

At this time, air is introduced into the water through the air pipe 157 through which the outside air is introduced into the water discharge port 154b having a relatively low pressure in the booster casing 155, .

Then, the water discharged to the pressurized discharge port is supplied to the desalted water tank 141 again through the return pipe 158.

Since air is mixed into the water supplied to the desalting water tank 141, bubbles are generated in the desalting water tank 141 to float the sludge, thereby increasing the contactability between water and sludge, thereby improving the efficiency of desalination.

At this time, the return pipe 158 is provided with a desalination filter 159a to remove the salt contained in the water supplied to the desalting tank 141 and supply the desalted water to the desalting tank 141.

A part of the water supplied to the return pipe 158 is supplied to the deionized water tank 141 while the remaining part of the water is supplied to the moving body connecting hose 169 by the speed adjusting valve 159, The supplied water is supplied to the free moving body 160 located at the bottom of the demineralized water tank 141.

A part of the water supplied to the free moving body 160 is sprayed through the friction reducing jet opening 165 for spraying water to the bottom of the free moving body 160 so that the free moving body 160 can be easily moved to the bottom of the desalting bath 141 So that the free moving body 160 floats on the floor.

The remaining part of the water supplied to the free moving body 160 is injected through the moving injection opening 167 and is moved by the pressure of the water injected through the moving injection opening 167 to the moving body connecting hose 169 and the free moving body 160, The water main body 163 is rotated by the water supply unit 161 connecting the water supply unit 161 to the bottom of the water desalination tank 141 by uneven discharge pressure to float the sludge accumulated on the floor.

At this time, when the free moving body 160 injects water to freely move in the demineralized water tank 141, bubbles are generated by the air contained in the water, and the sludge may be floated by the bubble.

In the demineralized water tank 141 or the centrifugal separator 150, the microorganisms used in the sewage end treatment plant are introduced and water purified by microorganisms is discharged to the outside when the water is discharged to the outside, thereby minimizing environmental pollution .

The sludge separated from the water discharged to the sludge outlet 154a of the centrifugal separator 150 is supplied to the sterilizing unit 170 located at the lower portion of the sterilizing unit 170. In the sterilizing unit 170, The sterilizing blade 171 is rotated to heat the sludge by mixing the hot air and the sludge, sterilizing the sludge, and drying the sludge.

The dried sludge is discharged to a compost outlet formed on the upper side of the sterilizing unit 170 and stored in the storage unit 180 located on the side of the sterilizing unit 170.

When the compost is discharged to the storage unit 180, the user draws the compost from the storage unit 180 and uses the compost as compost.

Meanwhile, since the controller 190 includes the IOT communication module 191, it can monitor and manage the operating state provided by the controller 190 through an external device, as well as control the respective components.

Therefore, the food waste composting apparatus 100 according to the embodiment of the present invention is easy to install, and is easy to install, by providing all the components for composting the food waste in the main body case 110.

In addition, the food waste can be crushed by the crushing roller 121 and the crushing roller 123, and various food waste such as meat bones and nuts of relatively high strength can be easily crushed and treated.

In addition, the water separated in the centrifugal separator 150 is returned to the desalted water tank 141 to prevent environmental pollution that may be generated by discharging saline-containing water to the outside.

In addition, by increasing the pressure of the water discharged by the pressure-increasing impeller 156 in the centrifugal separator 150 and introducing air through the air pipe 157 to generate bubbles in the desalting tank 141, It is possible to prevent sedimentation and increase the contactability between sludge and water, thereby improving the efficiency of removing the salt.

In addition, free movement of the free moving body 160 located at the bottom of the demineralized water tank 141 is prevented by the water discharged from the centrifugal separator 150 to prevent accumulation of sludge on the bottom of the demineralized water tank 141, Contamination due to bacterial growth can be minimized.

In addition, the driving unit 117 is disposed on one side surface of the main body case 110, which facilitates maintenance.

In addition, the controller 190 includes an IOT communication module 191 and can be monitored and removed from the outside according to IOT communication, which is advantageous in terms of management.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes and modifications to the scope of the invention.

100: Food waste composting device 110: Body case
111: Input port 113: Emergency input port
115: transfer unit 117:
119: wheel 120: crushing part
121: crushing roller 123: crushing roller
125: Feeding screw 130: Enzymatic decomposition unit
131: stirring blade 133: screen mesh
140: Salt removal agent 141: Deionized water tank
150: centrifugal separator 151: inlet
152: Centrifugal member 153: Centrifugal screw
154: centrifugal casing 154a: sludge outlet
154b: Water outlet 155: Reinforced casing
156: Pressure-controlled impeller 157: Air piping
158: Return piping 159: Speed regulating valve
159a: desalination filter 160; Free moving body
161: water supply part 163:
165: friction reducing jetting port 167: motion jetting port
170: sterilization part 171: sterilization blade
173: Hot air device 180: Storage part
190: controller 191: IOT communication module

Claims (9)

A crushing portion including a pair of rotating crushing rollers for crushing food waste,
An enzyme digesting unit including a digesting enzyme for digesting the food waste so that the digested food waste is decomposed into fine sludge by reacting with the digesting enzyme,
A desalting tank containing water to receive and dissolve the salt of the sludge dissolved in the enzyme digestion unit in the water to introduce the sludge into the desalting tank;
A centrifugal separator including a centrifugal member rotating to separate the desalted sludge from the saline by centrifugal force,
A sterilizing unit including a mixing blade for mixing the hot air and the sludge so that the hot air is uniformly contacted with the sludge,
And a storage unit for storing the compost produced by the sterilizing unit,
And a main body case for containing the crushing part, the enzyme decomposition part, the salt rejection part, the centrifugal part, the sterilizing part and the storage part,
The centrifugal separator
And a return pipe for returning the water separated by the centrifugal force to the desalted water tank in the centrifugal separator,
And a free moving body which freely moves on the bottom of the demineralized water tank by a pressure of water supplied partially through the return pipe and floats the sludge accumulated on the bottom of the demineralized water tank. The method according to claim 1,
The crushing section
And a crushing roller that rotates in a direction in which a pair of the crushing rollers are opposed to each other so that the food waste is crushed to a size greater than a crushable size by the crushing roller before the food waste enters the crushing roller. Device. The method according to claim 1,
Wherein the main body case includes an inlet through which the food waste is introduced,
And a transfer unit for transferring the food waste from the inlet to the crushing unit and feeding the food waste to the inlet. delete The method according to claim 1,
And a speed regulating valve installed in the return pipe to regulate the speed at which the free moving body freely moves according to the pressure of water supplied to the free moving body by regulating the pressure of the water discharged to the free moving body and the desalted water tank,
A speed adjusting valve for supplying water discharged from the speed adjusting valve to the free moving body and for connecting the free moving body and the speed adjusting valve in a flexible manner so as to freely move the free moving body without being restricted by the speed adjusting valve, Wherein the composting unit comprises a hose. The method according to claim 1,
The free-
A water supply unit for supplying water supplied through the return pipe,
A water main body rotatably installed at the water supply part about the water supply part,
A friction reducing jet opening for jetting a part of the water supplied to the scouring supplying portion to the bottom of the main body so as to reduce frictional force between the main body and the bottom of the demineralized water bath;
And an ejection opening for ejecting the remaining part of the water supplied to the supply unit around the movement body so that the movement body rotates freely in the supply unit. The method according to claim 1,
The centrifugal separator
And a pressure-increasing impeller which rotates together with the centrifugal member and separates the centrifugal force by the centrifugal force at the centrifugal separator to increase the pressure of water discharged to the return pipe,
Wherein the free moving body is configured to perform free movement by supplying water of increased pressure of the pressure-increasing impeller to the free moving body. The method according to claim 1,
And an air piping for mixing air with water supplied to the return pipe so that the bubbles are generated in the desalting water tank and the sludge is floated by the bubbles. The method according to claim 1,
And a controller for controlling the crushing unit, the enzyme decomposition unit, the salt rejection unit, the centrifugal separation unit, the sterilization unit, and the storage unit,
Wherein the controller comprises an IOT communication module for communicating status information and a control signal to an external device via the Internet (IOT).

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