KR100230519B1 - Apparatus and method for treating garbage - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

Food waste treatment device and method

2. The technical problem to be solved by the invention

Various organic food wastes are to be fermented by biological process by microbial fermentation so that it can be resourced with high quality compost.

3. Summary of Solution to Invention

Hopper; Means for transporting and crushing the food waste introduced through the hopper; A means for fermenting and aging the food waste and oxygen provided from the outside air in a state of being filled with aerobic microorganisms and a substance having moisture control function by receiving crushed food waste; Means for fermentation and aging to maintain optimum fermentation conditions by microorganisms; Means for discharging the fermented food waste to the outside; And it is mounted on one side of the fermentation means includes a means for deodorizing through the adsorption, chemical oxidation and neutralization, biological decomposition of water vapor with a gas and odor causing various odors generated during fermentation.

4. Important uses of the invention

Used to treat food waste.

Description

Food waste treatment device and method

1 is a plan view showing an embodiment of the food waste treatment apparatus according to the present invention.

2 is a front view of the food waste treating apparatus according to the present invention.

3 is a side view of the food waste treating apparatus according to the present invention.

4 is a block diagram of a control unit of the food waste treating apparatus according to the present invention.

* Explanation of symbols for main parts of the drawings

10: fermentation tank 10-1: first fermentation tank

10-2: second fermentation tank 20: stirrer impeller

20-1: Stirrer shaft 20-2: Primary fermenter impeller

20-3: support 20-4: secondary fermenter impeller

20-5: Fixing bracket and bolt 40: Filter

50: suction fan 60: cooling unit

60-1: cooling fan 60-2: radiator

70: automatic drainage device 80: first deodorization tank

90: second deodorization tank (ozone generator) 100: main motor

100-1: Chain 100-2: Sprocket

110: screw conveyor 120,121: first and second motor

130: grinder 140: hopper

140-1: Input door clamp 140-2: Input door

150: 1st fermenter check opening 160: 2nd fermenter check opening

170: exhaust port 180: fermentation product outlet

200: agitator shaft fitting groove 210: fermenter lid

220: base 230: odor discharge pipe

240: gas discharge pipe in the fermentation tank 250: air supply device

250-1: 3rd motor 250-2: hot air fan

250-3: controller 260: separator and automatic transfer device

270: automatic outlet 280: heat insulation heater

301: proximity sensor 302: timer

303: buzzer 304: hopper input door sensor

305: waste inflow sensor 306: fermentation tank check sensor

307 fermenter temperature sensor

The present invention relates to a food waste treatment apparatus and method for preventing recycling of resources and environmental pollution by composting organic food wastes such as bones and fish and shellfish discharged from apartments or apartment complexes through fermentation, and in particular, controllable The present invention relates to a food waste treatment apparatus and a method for producing organic waste composing food wastes under optimum conditions into a compostable and stable resource through a biological fermentation process.

Recently, researches and investigations have been conducted in Korea to grasp the actual situation from various angles and to prevent environmental pollution. Among them, the problem of disposing organic wastes such as food waste emitted from homes and restaurants is the biggest problem.

In general, organic wastes are collected by public institutions and disposed of in certain areas, but in large apartment complexes or public housing sewage collection facilities, environmental pollution such as odors or pathogens from food wastes may occur. As a result, it is not only disgusting to local residents, but also the organic wastes that are buried in landfills are decaying, causing a lot of precipitation to penetrate underground, increasing the occurrence of landfill leachate or polluting groundwater.

In order to solve this problem, composting researches are being actively conducted to recycle organic wastes. As a result, various devices for composting wastes have been proposed.

Among them, various methods for treating food waste have been proposed, but many of the proposed devices are basically designed with the biological method ignored in the fermentation process by microorganisms. In other words, the conventional treatment apparatus is mainly operated in a manner for reducing moisture through a process such as high speed fermentation, fermentation drying, dry composting, high speed drying, vacuum drying, carbonization drying, incineration.

Since the fermentation process is made by external heating using a boiler rather than the generation of heat of fermentation by microorganisms, the fermentation process by microorganisms cannot be maintained at the optimum temperature, and the weight reduction by evaporation is very strong and economical in terms of energy consumption. Falls. In addition, even if the aerobic fermentation process using a microbial fermentation agent is a device that discharges the organic matter is not completely stabilized in a batch process without a post-fermentation fermentation process. The product discharged from such a process should be followed by a landfill or incineration process as a post-treatment rather than a compost value, and there is a problem that dirty leachate may still be generated because organic matter remains, although the volume of waste is reduced. In addition, the material discharged from such a device is mainly made through the water loss by the boiler, so the value of the compost is reduced, not only causes the odor, but also when the nutrients present in the waste to absorb the water when using the discharge as a compost Therefore, when supplied to plants, water is almost absorbed by the salts, there is a problem that interferes with the water intake of the plant.

Due to the above problems, the discharges from most food waste treatment devices, called fast drying and high speed fermenters, have to be treated by landfill or incineration as feed or post-treatment rather than as compost, and most food waste treatment facilities are installed. In order to apply the city's biological process, microbial fermentation products (starting agents, aerobic microorganisms) are imported or purchased at high cost through some manufacturers. In addition, due to the lack of know-how about operation and design factors, many operating expenses such as boiler installation cost and fermentation agent purchase cost are incurred.

Therefore, the object of the present invention devised to solve the above problems is to go through the grinding and fermentation process of various organic food waste discharged from apartments or public housing complexes, so that by fermentation by biological process by microbial fermentation To provide a stable operation of the fermentation process, and to provide a food waste treatment apparatus and method for enabling the recycling of high-quality compost.

In addition, another object of the present invention is to provide a food waste treatment apparatus and method capable of efficiently carrying out the fermentation process of organic food waste without the input of a separate fermentation product having a facility for culturing aerobic microorganisms.

In addition, another object of the present invention is to obtain the final product in a stable state without generating odor, and to minimize the waste of waste and time generated during the collection and disposal process by minimizing various organic food waste, The present invention provides a food waste treatment apparatus and method for reducing environmental pollution.

In addition, another object of the present invention is to provide a food waste treatment apparatus and method, which has a small installation area and low maintenance cost.

In addition, another object of the present invention is to control the operation of the crushing device according to the amount of food waste input or opening and closing of the input door, to control the predetermined time is driven by a predetermined time to be comminuted to a size suitable for composting, An object of the present invention is to provide a food waste processing apparatus and method for reducing the load on each apparatus due to an excessive input amount.

In addition, another object of the present invention is to control the inflow of the crushed food waste introduced into the fermentation tank, supplying oxygen in the air into the fermentation tank to keep the food waste and oxygen in sufficient contact to maintain the optimum conditions of aerobic fermentation The present invention provides a food waste treatment apparatus and a method for obtaining high-quality compost through a high temperature and post-fermentation fermentation process.

In addition, another object of the present invention is to cool the water vapor containing the malodorous gas generated during the fermentation process in the fermentation tank to discharge the condensate to the septic tank, the water is removed deodorized by physical adsorption, chemical oxidation and biological deodorization method The present invention provides a food waste treatment apparatus and method thereof.

The apparatus of the present invention for achieving the above object, at least one sensing means for sensing each operating state of the device; Control means for controlling the overall operation according to the processing of food waste in accordance with the output signal of the sensing means; A hopper providing an input space of food waste; Grinding means mounted to the hopper to grind the input food waste; Fermentation aging means for receiving the food waste particles crushed by the grinding means for fermentation and maturation by contacting the food waste and oxygen provided from the outside air in a state filled with aerobic microorganisms and a substance having a moisture control function; And a deodorizing means mounted on the fermentation aging means to remove odors from the odor gas generated during fermentation and steam accompanied by odors.

In addition, the method of the present invention, in the food waste treatment method applied to the food waste treatment apparatus, by crushing the input food waste to supply a fixed amount to the first fermentation tank filled with aerobic microbial fermentation agent and a substance having a moisture control function step; Stirring the food waste particles introduced into the first fermentation tank together with the microbial fermentation material, and supplying oxygen contained in the air to maintain the optimum fermentation conditions of the microorganisms for a predetermined period of time; Automatically fermenting the fermentation product produced after the fermentation step to a second fermentation tank to post-fermentation for a predetermined period; Forcibly sucking the gas generated in the fermentation step and the gas produced in the post-aging fermentation step and the gas generated in the input food waste, and then cooling the gas; Removing odor contained in the gas discharged after performing the cooling step; And characterized in that it comprises the step of discharging the fermentation product is finished fermentation.

The composting method for the recycling of food waste presented in the present invention is applied to the composting step (high temperature fermentation, 50 ~ 60 ℃) and the ripening step (medium temperature fermentation, post-fermentation fermentation, 30 ~ 40 ℃) similar to the general principle Phosphorus operation was implemented. In the composting phase, when food waste is introduced, the temperature increases rapidly to a high temperature phase, and a lag phase may be initially formed. At this stage, pathogenic bacteria are killed and decomposition of organic matter contained in food waste It reaches the maximum speed. The maturation stage is no longer in the form of initial waste (compost raw material), but enters into the composted state through the composting stage, so the temperature gradually drops from the high temperature stage and the food waste is stabilized by more activated microorganisms near the middle temperature. do.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

Apparatus and method for treating food waste according to the present invention have been implemented to obtain high quality compost that can be recycled under optimal temperature conditions by biological process by microbial fermentation. It is divided into groups and provided with a base 220 of a predetermined size for supporting each of them. On the other hand, in some cases, the base 300 may be equipped with a wheel 300 that can be freely rotated 360 ° to the bottom of the free movement.

As shown in FIG. 3, a hopper 140 is disposed on an upper surface of one side of the base 220 to insert and store a predetermined amount of food waste, and also to seal the food waste in the hopper 140. A door clamp 140-1 is mounted at an upper end thereof, and an input door 140-2 locked to the door clamp 140-1 is rotatably mounted at a lower end thereof. At this time, the input door 140-2 is equipped with an input door sensor (304 of FIG. 1) for detecting the opening and closing operation thereof, when the input door 140-2 is opened, the grinder and the dedicated motor to be described later are stopped. By doing so, risks can be eliminated beforehand.

In addition, the hopper 140 has a negative pressure (-) formed therein so that one side communicates with the hopper 140 to provide a discharge path of odor generated from food waste, and the other side of the first fermentation tank 10-1. Is attached to the odor discharge pipe (230 of FIG. 1).

The lower portion of the hopper 140 is equipped with a grinder 130 for grinding the stored food waste to a predetermined size, and a first motor (120 of FIG. 1) for driving the grinder 130, the grinder 130 Is driven and rotated by the first motor 120.

Here, the size of the food waste particles crushed by the grinder 130 is a very important factor, which increases the surface area of the food waste particles to promote the activity of microorganisms and increase the decomposition rate, if the particles are too small By interfering with the circulation of air inside the fermenter, the amount of available oxygen is reduced, reducing the activity of microorganisms. As such, the particle size of the food waste also affects the utilization of carbon and nitrogen contained in the food waste, so that the food waste can be crushed to a certain size in this embodiment.

The shaft of the grinder 130 is equipped with a screw conveyor 110 which is driven together with the grinder 130 by the power of the second motor 121 so that the crushed food waste particles are transferred. In addition, the predetermined position in the hopper 140 is equipped with a proximity sensor 301 for detecting the position level to detect the amount of food waste accumulated in the hopper, the timer 302 is mounted on the outer wall surface of the main body The grinder 130 and the screw conveyor 110 is periodically connected for a predetermined time.

Here, the first and second motors 120 and 121 are configured to stop when an overload is applied, and when the first and second motors 120 and 121 are stopped due to overload, an alarm sound is generated to notify the outside. The buzzer 303 is mounted on the outside. As such, when the first and second motors 120 and 121 are stopped, the screw conveyor 110 is stopped for a predetermined time after the crushing 130 is stopped in order to prevent a failure from the idle due to this.

Fermentation tank 10 for fermenting the food waste particles supplied from the screw conveyor 110 is the first and second fermentation step and the second fermentation step, that is, the high temperature step and the aging step respectively to increase the fermentation effect It consists of two fermentation tanks 10-1 and 10-2. The first and second fermentation tanks 10-1 and 10-2 are distinguished from each other by the separator and the automatic transfer device 260. That is, the separator and the automatic transfer device 260 may be automatically transferred to the second fermentation tank 10-2 after the food waste ground in the first fermentation tank 10-1 has passed a certain fermentation period. It is composed. In addition, the first fermentation tank (10-1) is equipped with a waste inflow detection sensor 305 for detecting the amount of the food waste introduced to maintain the appropriate amount of the crushed food waste flowing through the screw conveyor. In addition, the fermenter 10 is equipped with a temperature sensor 307 for detecting the temperature inside the fermenter such that the inside of the fermenter 10 has an optimal aerobic fermentation conditions.

The fermenter 10 is equipped with a stirrer shaft 20-1 fixed through a fixing bracket and bolts 20-5 to facilitate disassembly and assembly across the transverse direction. In addition, an impeller 20-2 supported by the support 20-3 protruding from the circumference thereof is mounted to the stirrer shaft 20-1 at regular intervals in a zigzag manner, wherein the first fermentation tank 10-1 is provided. The primary fermentation tank impeller 20-2 located at the side of the agitator is stirred to completely mix the microbial fermentation agent and the food waste in order to maintain the contact area with air as large as possible, and the secondary fermentation tank (10-2) at the side The fermenter impeller 20-4 allows fermentation products to be continuously transferred to the post-fermentation fermentation process in the first fermentation tank 10-1, and after the stabilization period for about two weeks with stirring and oxygen supply, the rotation direction is changed. The fermentation product can be discharged. In addition, a longitudinal fitting groove (200 in FIG. 3) is formed at the center of the side of the second fermentation tank 10-2 in order to easily assemble the stirrer impeller 20 and the stirrer shaft 20-1.

One side of the fermentation tank 10 is equipped with a power transmission means for transmitting the power of the main motor 100 and the main motor 100 to the stirrer shaft 20-1. In this embodiment, the power transmission means consists of a chain 100-1 and a sprocket 100-2 for transmitting power between short axes.

One side of the fermentation tank 10 is provided with the necessary air therein, the air supply device 250 for automatically adjusting the air supply speed according to the temperature of the fermentation tank is provided. The air supply device 250 is a third motor (25-1) for providing rotational power by receiving power from the outside, and the fan 250-2 is inserted into the shaft of the third motor (250-1) and driven It is provided.

In addition, the controller 250-3 outputs a control signal to the third motor 250-1 according to the detection signal of the temperature sensor 307 that detects the temperature generated by the fermentation of food waste. By adjusting the number of revolutions of -2), air is supplied to the first fermentation tank 10-1 in an amount necessary for optimum aerobic fermentation conditions.

In the upper portion of the fermentation tank 10, check holes 150 and 160 are formed to check whether stirring is smoothly performed in the first and second fermentation tanks 10-1 and 10-2, respectively. The inspection port 150 and 160 are equipped with an inspection door detection sensor 306 to provide a detection signal according to the opening of the inspection door to the controller 250-3 so that the main motor 100 is stopped when the inspection doors 150 and 160 are opened. do.

In addition, the fermentation tank 10 is equipped with a cover (210 in FIG. 3) covering both the first fermentation tank 10-1 and the second fermentation tank 10-2.

As shown in FIG. 4, the controller 250-3 controls the overall operation of each apparatus mainly according to the food waste treatment process. For example, the sensor 304 detects that the input door 140-1 is opened when the waste is injected into the hopper 140 or the sensor 301 detects the position level of the waste injected into the hopper 140. When a signal is input, the controller 250-3 controls the first driving unit 308 to stop the operation of the grinder motor 120.

In addition, the controller 250-3 controls the first driving unit 308 to operate the screw conveyor when a detection signal is input from the sensor 305 for detecting the amount of food waste introduced into the fermentation tank 10. The operation of 121 is stopped. This is prevented from being introduced into the fermentation tank 10 more than the amount of food waste set.

Meanwhile, the controller 250-3 controls the rotation speed of the fan 250-2 through the second driving unit 309 according to the output signal input from the temperature sensor 307 for sensing the temperature in the fermentation tank 10. And, if the detection signal is input from the check opening sensor 306 stops the drive of the power transmission means for driving the stirrer 20.

At a predetermined position above the fermentation tank 10, a suction fan (50 in FIG. 2) for discharging the gas generated in the first and second fermentation tanks 10-1 and 10-2, and the suction fan (50 in FIG. 2) A filter (40 of FIG. 2) is provided to filter dust so that dusty fermentation products are not discharged from the gas discharged by the suction fan 50.

In addition, a cooling device (60 of FIG. 2) consisting of a cooling fan 60-1 and a radiator 60-2 is mounted outside the second fermentation tank 10-2. The air discharged by the suction fan (50 of FIG. 2) is cooled to cool while passing through the radiator 60-2, and the radiator 60-2 is configured to cool the gas generated in the first fermentation tank 10-1. Cool by using the negative pressure formed according to the length of the pipe.

One pipe of the radiator 60-2 is connected to an automatic drainage device (70 in FIG. 2) for automatically draining the condensed water generated by the cooling device.

On one side of the cooling device (60 of FIG. 2), the first deodorization tank 80 is mounted via a predetermined communication interval, and the gas is discharged from the gas discharge pipe 240 mounted in the second fermentation tank 10-2. Eliminate the smell The first deodorization tank 80 is a device for deodorizing by a biological method, which is configured to allow gas to pass through a biological medium. The gas generated from food wastes or fermenters introduced through this process is mostly removed through physical adsorption, chemical oxidation and neutralization, and biological decomposition. In addition, a second deodorization tank 90 having an ozone generator for removing odors by generating anions in a dust collecting type using an electrode is built in the deodorization tank.

As shown in FIG. 3, an exhaust port 170 is mounted on the front upper portion of the deodorization tanks 80 and 90, through which the gas from which the odor is removed by the deodorization tanks 80 and 90 is discharged to the outside. .

And, the lower side of the second fermentation tank (10-2) is provided with a fermentation product outlet (180 of FIG. 3) outlet for discharging the fermentation product after the ripening fermentation process.

Fermentation tank 10 has its outer wall is surrounded by a heat insulating material, the bottom thereof is provided with a heating heater 280 for maintaining a constant internal temperature in order to retain the operation mode for the winter. The heat heater 280 is the minimum temperature required for aerobic temperature-temperature fermentation so that the external temperature of the first and second fermentation tank (10-1, 10-2) does not affect the temperature inside the fermentation tank The examples are maintained at 20 ° C. or higher.

As shown in the above configuration, the final product is produced through the hopper 140, the crusher 130, the first fermentation tank (10-1), the second fermentation tank (10-20). The injected food waste is quantitatively transported to the next process by the screw conveyor 110, which is a conveying device, and the injected food waste is crushed to a certain size and introduced into the first fermentation tank 10-1 to maintain optimal fermentation conditions. By the stirrer 20, smooth oxygen transfer and fermentation process are accelerated. After a certain period of time in this process, most of the organic matter present in the food waste is removed and transported to the second fermentation tank (10-2).

Food waste that has undergone the fermentation process is stabilized and made available for reuse. In addition, the fermentation tank 10 is maintained at a high temperature by using heat generated by decomposition of the organic material, and water contained in the generated gas is mostly evaporated by the generated heat. Odors caused by residual food waste at the inlet and the like are mostly removed by the deodorizing tanks 80 and 90.

When described in more detail the operating state of the present invention is configured as described above through a series of processes as follows.

After the input door 140-2 is opened while the power switch is turned on, and a predetermined amount of food waste is input to the hopper 140, the input door 140-1 is closed, and the first motor 120 is closed. ) Is activated, and the grinder 130 is driven to crush the food waste into particles of a predetermined size.

In this case, when the proximity sensor 310 detects that a certain amount of food waste is accumulated in the hopper, the controller drives the buzzer 303 so that food waste is no longer input. When the operator sets a predetermined operating time through the timer 302, the first and second dedicated motors 120 and 121 for operating the grinder 130 and the screw conveyor 110 are operated so that the grinder 130 is a food waste. To the particles of a predetermined size, the screw conveyor 110 transfers the crushed waste particles to the fermentation tank.

In this case, when the mill 130 is stopped, the screw conveyor 110 is stopped after a predetermined time T minutes, thereby preventing a failure of the device due to idling. That is, the operating time of the dedicated mill grinder boat is kept shorter than the operating time of the dedicated screw conveyor 110 motor.

The pulverized food waste is conveyed to the first fermentation tank (10-1) by a predetermined amount through the screw conveyor 110 that rotates in conjunction with the crusher 130, the fermentation process proceeds, the inside of the fermentation tank (10) It is filled with aerobic microorganisms and substances with moisture control function, and the internal environmental conditions (temperature, moisture content, oxygen demand, stirring speed, etc.) required for aerobic fermentation are maintained to be optimal.

That is, the first fermentation tank (10-1) is quantitatively received through the screw conveyor 110, the food waste crushed to a predetermined size in the state filled with the microbial fermentation agent in the fermentation tank, the air supply device 250 By receiving oxygen contained in the air by the microbial fermentation conditions by the microorganisms to be optimal.

In addition, in the case of the first and second fermentation tanks (10-1, 10-2), the temperature of the outer wall is a warm heater (280) so that the external temperature does not affect the temperature inside the fermenter in order to maintain the operation mode for the winter season ) To maintain at 20 ℃, and heat generated by the fermentation of microorganisms to maintain in the range of 50 ~ 60 ℃, but if it exceeds 55 ℃, the controller detects this through the temperature sensor sensor (60- 1) was operated to control not to exceed 60 ℃, and if it is below 50 ℃ to control the air supply rate so that the temperature is no longer lowered.

As described above, in the first fermentation tank 10-1 of the high temperature stage, the initial delay period includes a period in which the temperature increases rapidly. In the second fermentation tank 10-2 of the aging stage, the stagnation period is increased, and the fermentation process has a continuity of these two stages with a period of decreasing temperature.

In the first fermentation stage, the increase in temperature is caused by two factors: heat is formed by the action of microorganisms, and heat loss depends on the warming effect outside the fermenter. Heat generated by microorganisms comes from respiratory activity, and microorganisms convert chemical energy boundaries from food waste, thereby converting unused energy into thermal energy.

Thus, the increase in temperature is a measure of microbial activity, and the more active the microorganism is, the greater the heat released. This temperature increase is due to the decomposition of organic matter (sugar, all, protein, etc.) in food waste, and this is the period when the microorganisms increase exponentially. If hardly decomposable substances remain in fast-moving food waste, the activity of the microorganisms is reduced and thus the temperature drops.

The food waste that has undergone the first fermentation process is subjected to the aging process, which is the second fermentation stage that is continuously transferred to the second fermentation tank (10-2). In the second fermentation stage, the temperature decreases with time, and biologically unstable components of food waste are gradually stabilized and can be reused. That is, most of the organic matter of the food waste is gasified and removed in the first fermentation tank (10-1), and only the remaining organic matter is transferred to the second fermentation tank, and then aerobic at medium temperature through the post-fermentation fermentation period for a certain period of time. Conditions are maintained to restabilize the organics.

In the first and second fermentation process, each device for the internal environmental conditions of the fermentation process is mainly used to control the first fermentation tank (10-1). Since food waste is no longer introduced into the second fermentation tank 10-2, the high temperature (50 to 60 ° C.) due to fermentation heat due to organic decomposition is gradually dropped to the range of 30 to 40 ° C. As the fermentation process folds to medium temperature, the activity of microorganisms growing at aerobic medium temperature becomes active, and the decomposition of residual organic matter becomes more active.

By the reverse rotation of the impeller 20-4 attached to the stirrer of the second fermentation tank in which the secondary fermentation process is completed, the food waste is continuously discharged to the automatic discharge port 270, and the second fermentation tank 10-2. The final product produced in is discharged to the outside through the fermentation product outlet 180.

On the other hand, the gas generated from the food waste stored in the hopper 140 is discharged to the first fermentation tank through the odor discharge pipe 230, which is a suction fan 50 together with the mixed gas and water vapor generated in the fermentation tank 10 during the fermentation process. Forced to the deodorization tank (80, 90) through).

Oxygen supplied to the fermentation tank 10 is consumed by the amount required in the fermentation process, the gas generated in the fermentation process is carried by the exhaust fan, at this time insufficient oxygen is used to generate ozone by inhaling the outside air again In the deodorization tank 80, the odor is removed by physical and chemical methods.

Here, the fermentation tank discharge air guided by the exhaust fan is mixed with the gas generated in the fermentation process and the odor generated from the food waste and evaporated water is mixed with each other. In the deodorizing process of removing the odor-causing substances in the mixed gas, the water acts as a cause of lowering the chemical deodorization efficiency by ozone generation, so the water is removed through the cooling process through all the gas or the radiator and the cooling fan.

The condensed water generated in the cooling process is stored in the automatic drainage device 70, discharged to the septic tank line (not shown in the drawing) according to the water level, the mixed gas passed through the radiator 60-2 is a state in which water is removed It is introduced into the deodorizing tank (80, 90) in the form of a mixed gas.

As described above, the present invention has a facility for culturing aerobic microorganisms suitable for food waste treatment, does not use expensive fermentation agents, and uses heat generated from organic matter decomposition to reduce boiler installation and operation costs. can do.

In addition, since the fermentation ripening of organic waste is controlled by a biological process by microbial fermentation to obtain a final fermentation product in a stable state, it can be used as a good compost in terms of resources, and odor generated during the fermentation process. By reliably removing gas from the deodorizing tank and discharging it to outside air, it is possible to make the surrounding environment such as a public housing complex comfortable, and its installation area is small, and it is easy to operate and manage by automation. It is possible.

Claims (16)

At least one sensing means for sensing each operating state of the apparatus; Control means for controlling the overall operation according to the processing of food waste in accordance with the output signal of the sensing means; A hopper providing an input space of food waste; Grinding means mounted to the hopper to grind the input food waste; Fermentation aging means for receiving fermented food waste particles by the crushing means and contacting the food waste and oxygen provided from outside air to ferment and ripen in a state in which aerobic microorganisms and a substance having moisture control are filled; And a deodorization means mounted on the fermentation aging means to remove odors from odor gas and odorous water vapor generated during fermentation. The food waste treatment apparatus according to claim 1, wherein the hopper further comprises an odor discharge pipe for discharging the odor generated from the food waste stored therein to the fermentation aging means. The suction fan of claim 2, further comprising: a suction fan mounted to the fermentation aging means and forcibly sucking odor gas of the food waste discharged through the odor discharge pipe, mixed gas and water vapor in the fermentation aging means, and sending it to the deodorizing means; And a filter mounted to a pipe connecting the suction fan and the deodorizing means to prevent dust fermentation products from being discharged during forced suction of the suction fan. According to any one of claims 1 to 3, wherein the grinding means is a crusher for crushing the food waste supplied to the hopper; A first motor providing power to the grinder; A conveying means for conveying the pulverized particles while driving in conjunction with the pulverizer; And Food waste treatment apparatus comprising a second motor for providing power to the transfer means. The method of claim 4, further comprising a timer for setting the operating time of the first motor and the second motor, by using the control means is configured to control the operation of the first motor and the second motor. Food waste treatment device. The food waste treatment apparatus according to claim 5, further comprising a buzzer which generates an alarm sound by the control of the control means when the first and second motors are stopped due to overload. According to claim 5, The at least one detection means, The first sensor for detecting the opening and closing state of the input door of the hopper and outputs to the control means; A second sensor embedded in the hopper and sensing a position level of food waste accumulated in the hopper and outputting the detected level to the control means; A third sensor which senses the amount of waste supplied to the fermentation aging means and outputs it to the control means; A fourth sensor which senses a temperature in the fermentation aging means and outputs it to the control means; Food waste treatment apparatus comprising a fifth sensor for detecting the open state of the check port lid of the fermentation ripening means and outputs to the control means. According to claim 4, The fermentation aging means, the upper portion has an angular shape, the lower portion has a rounded shape, the fermentation vessel in which crushed food waste is stored; Means mounted to the outside of the fermentation vessel to provide rotational power; Power transmission means for transmitting the rotational force of the rotational power providing means; It is mounted through the central portion of the fermentation vessel in the transverse length direction, and a plurality of impellers are mounted on the outer circumference thereof, so that the food waste particles and microbial fermenting agents introduced by the power of the rotational power providing means through the power transmission means may be mixed. Means for stirring so that; Means for detecting the amount of food waste loaded into the fermentation vessel; Means mounted within the fermentation vessel to sense internal temperature; And a means mounted to one side of the fermentation vessel and supplying the air necessary for the aerobic fermentation conditions to the inside. The fermentation vessel of claim 8, wherein the fermentation vessel comprises: a first fermentation tank filled with an aerobic material and a moisture control material so as to allow the food waste particles supplied from the transfer means to undergo a high temperature fermentation process for a predetermined period; A second fermentation tank for post-fermenting fermentation products transferred from the first fermentation tank for a predetermined period; And Food waste treatment apparatus comprising a separator and a transfer device for partitioning the first fermentation tank and the second fermentation tank. The method of claim 8, wherein the stirring means is provided with a stirrer shaft and an impeller, the stirrer shaft is mounted using a fixing bracket and a bolt to facilitate disassembly and assembly, and the longitudinal direction to facilitate assembly of the impeller and the stirrer shaft. Food waste treatment apparatus, characterized in that the fitting groove is formed. According to claim 8, It is mounted to the lower portion of the fermentation vessel, and further comprising a keeping means for maintaining the temperature inside the fermentation vessel, wherein the keeping means, the insulating material mounted over the entire lower rounding portion of the fermentation vessel And, Food waste treatment apparatus comprising a heater for providing a heat source to the fermentation vessel. The radiator according to claim 8, further comprising: a cooling fan mounted outside the fermentation vessel and cooling the gas discharged from the inside of the fermentation vessel, and a radiator for cooling the gas cooled by the cooling fan by a negative pressure formed according to a pipe length. Food waste treatment apparatus further comprises a. The food waste treatment apparatus according to claim 12, wherein the deodorizing means further comprises an ozone generator for generating anions in a dust collecting type using an electrode to remove odors of the cooling gas flowing from the radiator. A food waste treatment method applied to a food waste treatment apparatus, the method comprising: pulverizing the injected food waste and supplying it to the first fermentation tank filled with an aerobic microbial fermentation agent and a substance having a moisture control function; Agitating the food waste particles introduced into the first fermentation tank together with the microbial fermentation material and supplying oxygen contained in the air to maintain the optimum fermentation conditions of the microorganisms for a predetermined period of time; Automatically fermenting the fermentation product produced after the fermentation step to a second fermentation tank to post-fermentation for a predetermined period; Forcibly sucking the gas generated in the fermentation step and the gas produced in the post-aging fermentation step and the gas generated in the input food waste, and then cooling the gas; Removing odor contained in the gas discharged after performing the cooling step; And Food waste treatment method comprising the step of discharging the fermentation product is completed fermentation. The aerobic optimal fermentation conditions in the fermentation step, so that the outer wall temperature of the fermentation tank is about 20 ℃ or more, when the heat generated by the fermentation of microorganisms exceeds about 55 ℃, Food waste treatment method characterized by controlling not to exceed about 60 ℃ through the injection, and controlling the external air injection so that the temperature is no longer lowered when the heat generated by the fermentation of the microorganism is less than about 50 ℃. The method of claim 15, wherein the deodorization step, food waste treatment method characterized in that to remove the odor using anion generated through the ozone generator.

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