KR101129583B1 - Method for deposing of food waste materials - Google Patents

Abstract

PURPOSE: A method for extinguishing food waste is provided to reduce costs required for treating and transferring food waste by completely extinguishing the food waste and preventing the generation of bad odor. CONSTITUTION: Classified food waste is ground and stored in a pre-treating process(S10). The ground waste is transferred to a vacuum drying part(S20). The ground waste is vacuum-dried(S30). Vapor generated from the vacuum-drying process is cooled and liquefied(S40). Air exhaust from a condensed water generating process is discharged to the outside(S50). The vacuum-dried product is formed into pellets and is stored(S60). The pellets are supplied as the fuel of a pellet boiler for a vacuum drying process(S70). The generated condensed wastewater is purified, and a solvent is introduced into the purified condensed wastewater to be stored(S80). The primarily purified water is re-purified using a membrane filter and is ozone-sterilized. Contaminated water is fed-back to the pre-treating process. The purified water is stored and is drained through pipes(S100). The purified water is become hot water of 35 to 50 degrees Celsius(S110). The membrane filter is washed based on the hot water(S120).

Description

Method for deposing of food waste materials

The present invention relates to a method of extinction of food waste.

In general, food waste (hereinafter referred to as 'food waste') is a huge amount of about 32% of the total household waste, and the water content (moisture) of these food waste accounts for 65%, which is mostly dependent on landfills. Doing. Therefore, this landfill food waste causes a large amount of leachate and odors to pollute the surrounding environment, and at the same time, it causes serious environmental problems by generating odor, methane gas, etc. due to groundwater contamination and anaerobic fermentation of soil.

In addition, these food wastes, as mentioned above, have a very high moisture content, which is not suitable for incineration.

Therefore, in recent years, fermentation dryers and vacuum dryers have been developed to treat such food wastes, but these methods developed so far have low drying efficiency, are expensive, and are not completely dried. Since the food wastes are not discharged, it is difficult to store them for a long time, and odors are generated and various problems are not sanitary.

In addition, according to the prior art, since the condensed wastewater generated in the vacuum drying process of the vacuum dryer did not properly treat this, it depends on the treatment method such as ocean dumping or landfill, so the cost required is also a problem. In other words, it is a big problem for a technology developed to prevent environmental pollution to produce another problem without its function properly.

Moreover, according to the London Convention, which will enter into force in 2012, the dumping of wastes, which has been tolerated until now, must be totally banned, but until now no technical alternatives have been prepared to respond appropriately.

The present invention has been made to solve the above-mentioned general problems, the technical problem to be solved by the present invention is to fuel the vacuum-dried food waste and incineration to use it as fuel in the vacuum drying step and at the same time generated in the process The purpose of the present invention is to provide a method for extinguishing food waste, which can be environmentally friendly and fuel-saving by purifying wastewater cleanly.

Another technical problem to be solved by the present invention is the generation of hot water having an optimal temperature for cleaning the purified water by using the waste heat filter, thereby proceeding the filter cleaning by about 30% efficiency compared to the conventional filter cleaning using cold water It is to provide a method of extinction of food waste that can be increased.

Another technical problem to be solved by the present invention is to provide a method for extinction of food waste having improved vacuum drying efficiency compared to the prior art.

Disintegration method of food waste according to the present invention for achieving the above object, waste pretreatment step (S10) for selecting only the pure food waste from the collected food waste and the pulverized and sorted pure food waste as such; Grinding waste pumping step (S20) for transferring the grinding waste to the vacuum drying unit; Vacuum drying step (S30) for vacuum drying the pressure-completed grinding waste; Condensate generation step (S40) for liquefying by cooling the steam generated through the above step (S30); Air purification step (S50) for purifying the air exhausted in the process of the step (S30) to be discharged to the outside; When the step (S30) is completed, the fuel forming / storage step (S60) for molding and storing the vacuum-dried product into a pellet shape and storing it; A fuel supply step (S70) of allowing the pellets generated / stored through the step (S60) to be supplied and incinerated as fuel of the pellet boiler in the step (S30); When the condensate waste water generated through the above step (S40) reaches a proper amount, the first water treatment step (S80) to purify the condensate waste water and put a predetermined amount of solvent therein and then to store it; Purifying the primary purified water through the membrane filter (S80) and then ozone sterilizing and storing the membrane, the contaminated water that did not pass through the membrane filter was transferred to the above-mentioned step (S10). A second water treatment step (S90) to be fed back; The purified water storage and drainage step (S100) to store the purified and sterilized purified water through the above step (S90) and to drain it to the outside through the sewage pipe or sewage pipe (S100); Hot water generation step (S110) to receive the purified water through the step (S90) to be a temperature of 35 ℃ ~ 50 ℃; A filter cleaning step (S120) for cleaning the membrane filter with hot water generated through the step (S110); Characterized in that it comprises a.

In the waste pretreatment step (S10), a) the contaminant remover 220 and the pulverizer 230 are operated so that the contaminants contained in the food waste are removed by the debris remover 220 and then finely pulverized by the pulverizer 230. Steps S11 and S12; b) storing the crushed waste generated in the step a) in the atmospheric hopper 240 (S13); It is preferable to include.

The grinding waste conveying step (S20), a) when the amount of the grinding waste stored in the atmospheric hopper 240 is appropriate by operating the piston pump 250 for a predetermined time to supply the grinding waste to the vacuum drying unit 320 To be made (S22); b) stopping the operation of the piston pump 250 after a predetermined time (S24); It is preferable to include.

The vacuum drying step (S30), a) a step of heating the vacuum drying unit 320 by operating the pellet boiler (310) (S31); b) detecting the internal temperature, air pressure, and humidity of the vacuum drying unit 320 through the temperature sensor 322, the vacuum sensor 323, and the humidity sensor 324 provided inside the vacuum drying unit 320, respectively. Step S32; c) stopping the operation of the pellet boiler 310 when the temperature detected through the step b) falls within the range of 25 ° C. to 50 ° C. (S34); d) detecting the barometric pressure information corresponding to the above-described detected temperature from the prestored data (S35), detecting the output value of the vacuum pump corresponding to the detected barometric pressure information (S36), and then outputting the detected pressure Operating the vacuum pump by means of pressure (S37); It is preferable to include.

More preferably, after step d), if the humidity detected through step e) reaches a preset range and the state continues for a predetermined time, the outside air inlet unit 321 may operate for a predetermined time. At the same time as the opening operation is made gradually, the output of the operation of the vacuum pump 350 is gradually lowered for a predetermined time, and finally, the operation is preferably further included (S39).

The condensate generation step (S40), a) a step of operating a cooler (S41); b) when the condensed waste water in the gas-liquid converter 340 is in the full water level, the first pump P1 is operated to allow the condensed waste water in the gas-liquid converter 340 to be transferred to and stored in the condensed waste water storage tank 370 (S43). ; c) step S45 of stopping the operation of the first pump P1 when the condensed waste water in the gas-liquid converter 340 is in a low water level; It is preferable to include.

The air purification step (S50), a) step (S51) in which the washing machine 360 is operated; b) stopping the operation of the washer 360 when the vacuum drying step S30 is completed (S53); It is preferable to include.

The fuel forming / storing step (S60) may include: a) operating the driving motor (M1) and the pellet molding machine (510) when the vacuum drying step (S30) is completed (S63, S64); b) storing the resultant dried through the vacuum drying unit 320 is provided to the pellet molding machine 510 through the transfer screw 531, and then pelletized and stored in the pellet storage tank 520; c) when all of the pellet molding is completed, the hatch of the vacuum drying unit 320 is closed, and the driving motor M1 and the pellet molding machine 510 are stopped (S66 and S67); It is preferable to include.

The fuel supply step (S70), a) when the amount of fuel stored in the fuel supply tank 313 is insufficient to operate the drive motor (M2); b) stopping the operation of the driving motor M2 when the amount of fuel stored in the fuel supply tank 313 is appropriate; It is preferable to include

The first water treatment step (S80), a) a step (S82) to operate the fourth pump (P4) when the condensed wastewater storage tank 370 is full water level (S82); b) When the air storage tank is full level and the condensation waste water storage tank is low, the operation of the fourth pump (P4) is stopped (S84), the fifth pump (P5) is operated and the opening and closing action of the third opening and closing valve (V3) Is initiated step (S84); It is preferable to include.

The second water treatment step (S90) may include: a) operating the sixth and seventh pumps P6 and P7 when the atmospheric reservoir 440 is at full water level (S92); b) stopping the operation of the sixth and seventh pumps P6 and P7 when the air storage tank 440 is at a low water level and the ozone sterilization tank 470 is at a full water level (S94); It is preferable to include.

The purified water storage / drainage step (S100) may include: a) operating the ozone generator (S101); b) step (S103) of operating the eighth pump (P8) when the ozone sterilization tank 470 is full water level; c) stopping the operation of the eighth pump P8 when the ozone sterilization tank 470 is at a low water level (S103-3); d) step S105 of operating the tenth pump P10 when the purified water storage tank 480 is at full water level; e) stopping the operation of the tenth pump P10 when the water storage tank 480 is at a low water level (S105-3); It is preferable to include.

The hot water generation step (S110), a) a sixth valve (V6) is opened (S111); b) the step of performing the filter cleaning step (S130) when the temperature of the heat exchange water in the heat exchanger (490) is in the range of 35 ℃ ~ 50 ℃; c) step S114 of closing the sixth valve V6 when the temperature of the heat exchange water is 50 ° C. or more; It is preferable to include.

The filter cleaning step (S120), a) when the second water treatment step (S90) is finished, the fourth and fifth valve (V4, V5) is closed and the ninth pump (P9) step (S122) ; b) when the predetermined time has elapsed, the fourth and fifth valves V4 and V5 are opened and the operation of the ninth pump P9 is stopped (S124); It is preferable to include.

According to the present invention, the vacuum-dried food waste is reprocessed as a fuel, and by using it as a fuel during the heating operation in the vacuum drying step according to the present invention, the energy saving effect, as well as the effect that allows complete disappearance of food waste Will be effective.

In addition, the condensed wastewater generated in the vacuum drying step can be purified to have a water quality suitable for drinking water or draining to the sewer, and since the disposal of the waste can be carried out in a state of being separated from the outside, there is no odor and it is hygienic. Since it is possible to provide a safe and clean working environment and its installation and operation in the city center, it is possible to greatly reduce the processing cost and logistics cost of food and logistics waste.

1 is an overall flow chart of the extinction method of food waste in accordance with the present invention.
Figure 2 is a control flow diagram of the waste pretreatment step (S10) shown in FIG.
3 is a control flow diagram of the crushed waste conveying step (S20) shown in FIG.
4 is a control flow diagram of the vacuum drying step (S30) shown in FIG.
5 is a control flow diagram of the condensate production step (S40) shown in FIG.
6 is a control flow diagram of the air purification step (S50) shown in FIG.
7 is a control flow diagram of the fuel forming / storage step (S60) shown in FIG.
8 is a control flow diagram of the fuel supply step (S70) shown in FIG.
9 is a control flow diagram of the first water treatment step (S80) shown in FIG.
FIG. 10 is a control flowchart of the second water treatment step S90 illustrated in FIG. 1.
11 is a control flow diagram of the integer storage / drainage step (S100) shown in FIG.
12 is a control flow diagram of the hot water generation step (S110) shown in FIG.
13 is a control flowchart of the filter cleaning step (S120) shown in FIG.
14 is a control flow diagram of the washing water replacement step (S130) shown in FIG.
15 is an electrical connection diagram of a system for implementing the method according to the present invention.
16 is a system configuration diagram for implementing the steps S10 and S20 of FIG.
17 is a system configuration diagram for implementing the steps (S30, S40, S50, S120, S130) of FIG.
18 is a system configuration diagram for implementing the steps (S80, S90, S100, S110) of FIG.
19 is a system configuration diagram for implementing the steps S60 and S70 of FIG.
20 is a graph showing the vapor pressure and absolute humidity of water according to the temperature.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the food waste extinction method according to the invention.

1 is an overall flowchart of a method of extinction of food waste according to the present invention. Referring to Figure 1, the method of extinction of food waste in accordance with the present invention is the waste pretreatment step (S10) and to sort and store only pure food waste from the collected food waste collected and collected as such pure food waste , Grinding waste pumping step (S20) for conveying the crushed waste to the vacuum drying unit, vacuum drying step (S30) for vacuum drying the pressure-completed crushed waste in a relatively low temperature state (with a temperature close to room temperature), and the above step (S30) The condensed water generation step (S40) of cooling the liquefied vapor generated through the step (S40), and the air purification step (S50) to purify the air exhausted in the process of the above step (S30) to be discharged to the outside.

When the above-mentioned step (S30) is completed, the fuel-forming / storage step (S60) is processed to form and store the vacuum-dried product in the form of a pellet by storing the pellet, and then the above-described step (S30) When the process proceeds again, the fuel supply step (S70), in which the pellets generated / stored through the above-described step (S60), is supplied as a fuel of the pellet boiler, is performed.

Next, when the condensate waste water generated through the above step (S40) reaches an appropriate amount, the first water treatment step (S80) to purify the condensate waste water and store it after a predetermined amount of solvent is added thereto, and the membrane Purifying the primary purified water through the above step (S80) again using a filter and then storing the ozone sterilization and storing the contaminated water containing impurities that do not pass through the membrane filter (S10). The second water treatment step (S90) to be fed back to the progress is carried out, the purified water storage and drainage to store the purified and sterilized purified water through the above step (S90) and drained to the outside through the heavy water pipe or sewage pipe, etc. Step S100 proceeds.

Next, the hot water generation step (S110) to receive a portion of the purified water as described above so that it can be a temperature of 35 ℃ ~ 50 ℃ proceeds, when the above-mentioned water purification process is completed, the above step ( The filter cleaning step (S120) for cleaning the membrane filter using the hot water generated through S110 is completed.

In addition, the waste washing water used in the above-mentioned step (S50) on a predetermined time basis (for example, in a weekly unit) may be purified through the above-described steps (S80, S90, S100), and the above-mentioned step (S100). Washing water replacement step (S130) to be provided through the purified water generated by the wash water is in progress.

The system and the detailed control method according to the present invention for implementing the method of extinction of food waste according to the present invention described above will be described in detail.

15 is an electrical connection diagram of a system for implementing a food waste extinction method according to the invention, Figure 16 is a system configuration for implementing the steps (S10, S20) of Figure 1, Figure 17 is 1 is a system configuration diagram for implementing the steps S30, S40, S50, S120, and S130 of FIG. 1, and FIG. 18 is a system configuration diagram for implementing the steps S80, S90, S100, and S110 of FIG. 19 is a system configuration diagram for implementing the steps S60 and S70 of FIG. 1.

Looking at Figure 16, as a component for implementing the waste pretreatment step (S10) and the crushed waste conveying step (S20) according to the present invention, the raw material hopper 210, the contaminant remover 220, the crusher 230 and It can be seen that the atmospheric hopper 240 and the piston pump 250 is provided. The raw material hopper 210 is a component to which the collected food waste is input and provides a predetermined amount of waste to the junk remover 220, and the junk remover 220 is a stone, metal, bone? Contained in the food waste. It is a component that selects and removes only pure food wastes by separating and removing impurities such as synthetic resins and provides them to the mill 230. The mill 230 grinds the sorted pure food wastes as the form of small particles to atmosphere. It is a component to be provided to the hopper 240, the atmospheric hopper 240 is a component that accommodates and stores the crushed waste (hereinafter referred to as "mill waste"), the piston pump 250 is The crushed waste stored in the atmospheric hopper 240 is a component to be conveyed into the vacuum drying unit 320 to be described later.

Referring to FIG. 17, a pellet boiler 310 having a switch 314 and a fuel supply tank 313, an outside air inlet 321, a plurality of sensors 322, 323, and 324 and a steam jacket (not shown) And a gas-liquid converter 340 having a vacuum dryer 320 having a hatch (not shown), a dust collector / deodorizer 330, a cooler 341, and a water level sensor 342, and a vacuum pump 350. And a condensate wastewater storage tank 370 having a washing machine 360, a water level sensor 371, first and second pumps P1 and P2, and a plurality of pipes (vacuum pipe, water pipe, steam pipe, etc.), and It can be seen that the first and second valves (V1, V2) are provided. In addition, a fuel amount sensor 315 is provided inside the fuel supply tank 313.

The pellet boiler 310 is a steam generating boiler using pellets, and is connected to the fuel supply tank 313 through the switch 314, and the switch 314 is automatically opened and closed by a control command of the controller 100. As the operation is carried out and the pellets stored in the fuel supply tank 313 are automatically supplied to the combustion chamber (not shown) of the pellet boiler 310 due to the opening and closing action, the combustion fire power and the steam generation amount are automatically adjusted. It is the component that will be exercised.

The vacuum drying unit 320 is a structure that the inside is shielded to the outside, the inside is connected to the output end of the piston pump 250 through a transfer pipe (not shown) and the vacuum pipe (not shown) Through the dust collector / deodorizer 330 and the gas-liquid converter 340 and the vacuum pump 350 in order to be in airtight communication, and detects the temperature, vacuum and humidity of the inside as an electrical signal to send it to the control unit 100 The temperature sensor 322, the vacuum sensor 323, the humidity sensor 324, and the outside air inlet 321 may be provided to allow the outside air to flow into the vacuum drying unit 320. In addition, a steam jacket (not shown) formed on the outer circumferential surface of the vacuum drying unit 320 is formed by winding a steam pipe (not shown) in a spiral shape. At this time, each end portion (both ends of the steam pipe) of the steam jacket (not shown) is the pellet through the steam supply pipe 311 and the steam recovery pipe 312 each of which is equipped with the first and second valves (V1, V2) It is connected to the steam generator (not shown) of the boiler 310. In addition, the vacuum drying unit 320 is connected to the dry forming / supply unit 500 to be described later.

The dust collector / deodorizer 330 connected to the inside of the vacuum drying unit 320 through a vacuum pipe (not shown) is a conventional air filter is accommodated in the housing, the input end is a vacuum pipe (not shown) Is connected to the inside of the vacuum drying unit 320 and its output end is connected to the input end of the gas-liquid converter 340.

The gas-liquid converter 340 is a conventional condenser whose inside is cooled through a circulation structure of the refrigerant by the cooler 341, and its output end is connected to the input end of the vacuum pump 350 through a vacuum pipe (not shown). Is connected to the condensate wastewater storage tank 370 through a water pipe (not shown) provided with a first pump (P1) bar condensate wastewater generated through the gas-liquid converter 340 is the condensate wastewater storage tank 370 It can be transferred to). In addition, the condensation wastewater storage tank 370 is connected to the first treatment filter 411 which will be described later through a water pipe (not shown) provided with a fourth pump P4.

The cleaner 360 sprinkles high-pressure washing water on the exhaust gas discharged from the vacuum pump 350 to reconstruct the moisture contained in the exhaust gas (about 2% of residual moisture not condensed through the gas-liquid converter 340). Condensation and foreign matters such as fine dust and odor particles are components that are cleaned by washing water, and connected to the water purification tank 480 which will be described later through a water pipe (not shown) provided with a third pump (P3). It is made to be supplied with the washing water from the 480, and is connected to the condensate waste water reservoir 370 through a water pipe (not shown) provided with a second pump (P2) contaminated by the above-described washing action It is made to send the washing water to the condensate waste water reservoir (370).

Therefore, the above-mentioned crushed waste is pumped into the vacuum drying unit 320 from the atmospheric hopper 240 by the operation of the piston pump 250, the internal temperature of the vacuum drying unit 320 is pellet boiler 310 Is heated by the operation of the control panel, and the internal temperature is controlled by the control unit 100 based on the detection signal of the temperature sensor 322 and the first and second valves V1 and V2 operated and controlled accordingly. Is automatically adjusted due to the automatic opening and closing operation of the vacuum drying unit 320, the control command of the control unit 100 based on the detection signal of the temperature sensor 322 and the vacuum sensor 323 and the intensity of the output accordingly Due to the operation of the automatically controlled vacuum pump 350, the moisture contained in the crushed waste is adjusted to reach the internal temperature of the vacuum drying unit 320 and the corresponding vacuum degree so as to reach the most suitable vacuum degree for vacuum drying. Controlled, the above-mentioned grinding waste is The moisture contained in the air drying unit 320 is evaporated, sucked, collected, deodorized, condensed, and stored at a relatively low temperature (25 ° C. to 50 ° C.), thereby vacuum drying the crushed waste. As described above, the condensed waste water generated as described above is purified as water quality corresponding to drinking water due to the following components.

Referring to FIG. 18, an atmospheric reservoir 440 having a plurality of pretreatment filters 411, 412, 413, a solvent storage tank 420, a solvent mixer 430, and a water level sensor 441, and first and second filters. An ozone sterilization tank 470 having second post-treatment filters 450 and 460, a water level sensor 472, an ozone generator 471, and a water level sensor 481; A heat exchanger having a water temperature sensor 491, a water pipe (not shown) for organically connecting them, and a plurality of valves (V3, V4, V5, V6) mounted on these water pipes (not shown) and It can be seen that the pumps P1 to P10 are provided.

The first pretreatment filter 411 filters out contaminants having a relatively large particle size such as dust and dust, and the present inventors have constituted the conventional disk filter. The disc filter has a structure in which a plurality of circular discs having a plurality of fine protrusions formed on one surface thereof are finished by finishing the outside thereof with a housing. The rear end of the first pretreatment filter 411 as described above is connected to the front end of the second pretreatment filter 412 through a water pipe (not shown) provided with the fifth pump P5.

The second pretreatment filter 412 filters out contaminants of 15 μm or less, in particular large colloidal components, and the present inventors have configured a bag filter in which a plurality of bag-shaped nonwoven fabrics are stacked. The second end of the second pretreatment filter 412 is connected to the front end of the third pretreatment filter 413.

The third pretreatment filter 413 is a conventional microfilter built in a filter manufactured in units of micrometers (μm). The third pretreatment filter 413 mainly serves to filter COD causative agents and colloidal components. The third pretreatment filter 413 as described above is connected to the front end of the solvent mixer 430 through a water pipe (not shown), and a water pipe (drawing reference) connecting the above components 413 and 430. Not shown) is connected to the solvent storage tank 420, the scale inhibitor (citric acid, etc.) accommodated and stored through a separate water pipe (not shown), the separate water pipe (not shown) in the opening and closing action By the third valve (V3) is mounted so that a certain amount of solvent can be discharged.

The mixer 430 is a conventional line mixer that functions to allow the water and the solvent to be mixed with each other while passing through the mixer 430, and the rear end thereof is connected to the atmospheric reservoir 440, so that the water mixed with the solvent is the atmospheric reservoir 440. Is connected to receive storage.

Although not shown, a bubble generator (not shown) is provided inside the air reservoir 440 to provide oxygen to water mixed with a solvent. The atmospheric reservoir 440 is connected to the first post-treatment filter 450 through a water pipe (not shown) provided with a sixth pump P6. The first post-treatment filter 450 is composed of the aforementioned micro filter.

The first post-treatment filter 450 is connected to the second post-treatment filter 460 through a water pipe (not shown) at which a rear end thereof is sequentially mounted with a seventh pump P7 and a fourth valve V4. do.

The second after-treatment filter 460 passes through a plurality of membranes while the introduced fluid moves toward the traveling direction, and purified water is discharged through the purified water outlet 461 formed at the central portion of the opposite side (rear) and does not penetrate the membrane. The unconcentrated contaminated water is a conventional spiral-wound reverse osmosis filter module (Spiral-wound R / O module) discharged to the concentrated wastewater outlet 462 provided on the opposite (rear) edge. The purified water outlet 461 is connected to the ozone sterilization tank 470 through a water pipe (not shown) provided with a fifth valve V5, and the concentrated waste water outlet 462 is a water pipe (not shown). It is connected to the raw material hopper 210 constituting the waste pretreatment unit 200 through. Accordingly, the purified water flowing out of the purified water outlet 461 is transferred to and stored in the ozone sterilization tank 470, and the concentrated wastewater flowing out of the concentrated wastewater outlet 462 is fed back to the raw material hopper 210 into which food waste is first introduced and accommodated. do.

The ozone sterilization tank 470 functions to provide ozone sterilization by providing ozone generated from the ozone generator 471 to the purified water contained therein, and detects the amount of purified water therein to control the detection signal. The water level sensor 472 to be sent to the 100 is provided. The ozone sterilization tank 470 is connected to the water purification tank 480 through a water pipe (not shown) provided with an eighth pump P8.

The purified water storage tank 480 is provided with a water level sensor 481 that detects the amount of purified water therein and transmits the detected signal to the controller 100. And the purified water storage tank 480 is connected to the above-described washing machine 360 through a water pipe (not shown) provided with a third pump (P3) to provide the purified water to be used to replace the washing water in the washing machine 360 In addition, by being connected to the sewer pipe or the sewer pipe through the water pipe provided with the tenth pump (P10), it is possible to provide purified water to the surrounding livestock farms, factories, etc. as use water (heavy water). In addition, the purified water storage tank 480 is connected to the heat exchanger 490 through a separate water pipe (not shown) is made so that the purified water can be provided to the heat exchanger (490).

The heat exchanger 490 is connected to a steam pipe (not shown) having a sixth valve (V6) between the purified water from the purified water storage tank 480 by using steam heat generated from the pellet boiler 310 It will function so that heat exchange can be carried out. In addition, the heat exchanger 490 connects the fifth valve V5 and the purified water outlet 461 through a water pipe (not shown) provided with a ninth pump P9 (not shown in the drawings). When the ninth pump P9 is driven, heat exchange water having a predetermined temperature is connected to the purified water outlet 461. The heat exchanger 490 is provided with a water temperature detection sensor 491 to detect the temperature of the heat exchange water and to send the electrical signal to the control unit 100.

Referring to Figure 19, the building forming / supply unit 500 according to the present invention is a component, a pellet molding machine 510, a pellet storage tank 520, two transfer screws (531, 532) and a drive motor ( It can be seen that M1, M2) is provided.

The vacuum drying unit 320 is connected to the pellet molding machine 510 through a driving motor (M1) and the transfer screw 531, the pellet molding machine 510 is pellet storage through a transfer pipe (not shown). Is connected to the tank 520, the pellet storage tank 520 is connected to the inside of the fuel supply tank 313 constituting the pellet boiler 310 through another drive motor M2 and the transfer screw 532. . Therefore, the food waste (hereinafter referred to as 'dry matter') vacuum dried in the vacuum drying unit 320 is provided with a certain amount of dry matter to the pellet molding machine 510 through the transfer screw 531, the pellet molding machine 510 The above molding process the dried product into a pellet shape, the pellet processed through the pellet molding machine 510 is passed through a transfer pipe (not shown) connecting the pellet molding machine 510 and the pellet storage tank 520. The pellet storage tank 520 is accommodated and stored. Here, the fuel amount sensor 315 is provided to detect the amount of fuel in the fuel supply tank 313 and send it to the control unit 100 as an electrical signal.

The fuel amount detection sensor 315 transmits a detection signal to the control unit 100 when the fuel (pellets) contained in the fuel supply tank 313 exceeds or falls short of an appropriate range, and the control unit 100 as described above. If the received detection signal indicates that the fuel amount is insufficient, the pellet storage tank 520 by instructing the operation of the driving motor M2 until a detection signal indicating that the fuel amount has reached an appropriate level through the fuel amount detection sensor 315 is received. The pellet stored in the control is to be automatically supplied to the fuel supply tank 313 through the transfer screw 532.

As shown in FIG. 15, the components as described above are electrically connected with respect to the controller 100 so that these components can be integrated and automatically controlled by the controller 100. Looking at, the control unit 100 is to collectively control so that the following components can be organic and properly operated, in detail, the control unit 100 is a debris remover 220, a grinder 230, a piston pump 250, pellets Boiler 310, switch 314, fuel amount sensor 315, outside air inlet 321, temperature sensor 322, vacuum sensor 323, humidity sensor 324, cooler 341, vacuum Pump 350, Washer 360, Multiple Water Level Sensors 342, 371, 441, 472, 481, Ozone Generator 471, Water Temperature Sensor 491, Pellet Molding Machine 510, Two Drive Motors (M1, M2), the first to tenth pumps (P1 to P10) and the first to sixth valves (V1 to V6) are each electrically connected. You can.

Hereinafter, a method of extinction of food waste according to the present invention will be described in more detail with reference to FIGS. 1 to 20.

2 is a control flow chart of the waste pretreatment step (S10) shown in Figure 1, Figure 3 is a control flow chart of the crushed waste conveying step (S20) shown in Figure 1, Figure 4 is a vacuum drying step shown in FIG. FIG. 5 is a control flow diagram of the condensate generation step S40 of FIG. 1, and FIG. 6 is a control flow diagram of the air purification step S50 shown in FIG. 1, and FIG. 1 is a control flow chart of the fuel molding / storage step S60 shown in FIG. 1, FIG. 8 is a control flow chart of the fuel supply step S70 shown in FIG. 1, and FIG. 9 is a first water treatment step S80 shown in FIG. 1. FIG. 10 is a control flowchart of the second water treatment step S90 shown in FIG. 1, FIG. 11 is a control flowchart of the water storage / drainage step S100 shown in FIG. 1, and FIG. 1 is a control flowchart of the hot water generating step (S110) shown in FIG. 1, FIG. 13 is a control flowchart of the filter cleaning step (S120) shown in FIG. 1, and FIG. 14 is shown in FIG. 1. Control flow chart of the washed water replacing step (S130). On the other hand, Figure 20 is a chart showing the vapor pressure and absolute humidity of the water according to the temperature.

In the method of extinction of food waste according to the present invention, as shown in Figure 1, the first waste pretreatment step (S10) is first, and then the crushed waste conveying step (S20) is carried out, vacuum drying step (S30) And condensate generation step (S40) and the air purification step (S50) at the same time, if a certain amount of condensate waste water is generated and stored through the step (S40) immediately after the first water treatment step (S80) and the second water treatment step (S90), and then, the purified water storage / drainage step (S100) and the hot water generation step (S110) to be purified or stored as a result of the above-described steps (S80, S90) proceeds, When one step (S30) is completed, the fuel molding / storage step (S60) is carried out, and after the above-mentioned step (S60) is completed, the fuel supply step (S80) and filter cleaning step (S120) is carried out. . In addition, since the washing machine 360, which is a component in charge of the above-described air purification step S50, washes the air discharged from the vacuum pump 350 using water, the washing water of the washing machine 360 is replaced in a predetermined period. Step S130 is performed.

Referring to Figure 2 with respect to the waste pretreatment step (S10), the control unit 100 by operating the debris remover 220 and the crusher 230 (S11, S12) of the contaminants contained in the food wastes waste remover 220 Waste to be removed by the), and the waste is removed finely pulverized through the crusher 230, such a crushed waste can be stored in the atmospheric hopper 240, as described above until the end command The control of the components (220, 230) is to be maintained (S13).

Then, when the crushed waste stored in the atmospheric hopper 240 is an appropriate amount, the control unit 100 is controlled so that the crushed waste conveying step (S20) as shown in FIG.

Referring to Figure 3, the grinding waste conveying step (S20) proceeds to the step (S21) to determine whether the amount of the crushed waste stored in the atmospheric hopper 240 is appropriate, and if the determination result is positive piston pump 250 ) To operate the step (S22), and proceeds to step (S23) to determine whether the step (S22) has been performed for a predetermined time, if the determination result for the step (S23) is positive (that is, After a certain time, the step (S24) of stopping the operation of the piston pump 250 is performed so that a predetermined amount (eg, 10 tons) of crushed waste can be pumped into the vacuum drying unit 320. The above operating state continues until there is an end command (S25). On the other hand, if the determination result of the step (S21) is negative is fed back to the previous step, if the determination result of the step (S23) is fed back to the previous step of the above-described step (S22).

When the above-mentioned grinding waste conveying step (S20) is completed, the control unit 100 is controlled to proceed to the vacuum drying step (S30), the condensate generation step (S40) and the air purification step (S50).

Referring to FIG. 4, in the vacuum drying step S30, the controller 100 operates the pellet boiler 310 so that the step S31 of heating the vacuum drying part 320 may be performed. Subsequently, the control unit 100 uses the temperature sensor 322, the vacuum sensor 323, and the humidity sensor 324 provided inside the vacuum drying unit 320 to control the temperature, pressure, and pressure in the vacuum drying unit 320. In step S32 of sensing humidity, the detected temperature falls within a range of 25 ° C. to 50 ° C., and thus, step S 33 is performed to determine whether the humidity is appropriate. In one case, the feedback to the previous step of the above-described step (S31), and if the determination result is positive, the step of stopping the heating of the vacuum drying unit 320 by stopping the operation of the pellet boiler (310) (S34) proceeds do. Thereafter, the control unit 100 detects the barometric pressure information corresponding to the aforementioned sensing temperature from the pre-stored data (not shown) (S35), and outputs an output value (moving intensity value) of the vacuum pump corresponding to the detected barometric pressure information. ) (S36), the step (S37) of starting or stopping the vacuum pump with the detected output value proceeds. That is, for example, the control unit 100 is a pellet boiler 310 and the vacuum pump 350 so that the internal temperature of the vacuum drying unit 320 is 50 ℃ and the internal pressure is 92.51mmHg (see the diagram in Figure 20). By controlling the operation of the individual and collectively, when the internal temperature and the internal pressure of the vacuum drying unit 320 finally reaches the above state, the interior of the vacuum drying unit 320 allows evaporation of moisture from the crushed waste. This allows the above-described vacuum drying operation to be started. Therefore, in this state, the control unit 100 stops the operation of the pellet boiler 310, closes the first and second valves V1 and V2, and maintains the vacuum pump 350 so that the above-described evaporation action can be continued. The output will be regulated. Thereafter, through the step S32, the detected humidity reaches a preset range and goes through the step S38 of determining whether the state is maintained for a predetermined time (for example, about 3 minutes). In the case of feedback to the previous step of the above-described step (S31), but if the above determination result is affirmative (that is, when the water content of the dry matter reaches about 15% of the amount of humidity detected in the corresponding vacuum drying unit 320 If the range lasts for a predetermined time} is the outside air inlet 321 is controlled by the control unit 100 so that the opening action is gradually made for a predetermined time (for example, 5 minutes) by the outside air inside the vacuum drying unit 320 And gradually control the operation of the vacuum pump 350 so that its output is gradually lowered for a predetermined time (for example, 10 minutes) and finally the operation is stopped (S39). Then exit. The reason for being controlled as above is that when the outside air flows into the inside of the vacuum drying unit 320, the moisture contained in the outside air may affect the moisture content (about 15%) of the dry matter, thereby slowly introducing the outside air. The interior of the vacuum drying unit 320 is to be in the atmospheric pressure state.

In addition to the above-described vacuum drying step (S30), the condensate generation step (S40) and the air purification step (S50) are each progressed.

Looking at the condensate generation step (S40) with reference to Figure 5, after the control unit 100 operates the cooler (S41), the gas-liquid based on the information received from the level sensor 342 provided in the gas-liquid converter 340 It is determined whether the condensed wastewater in the converter 340 is in the full water level (S42). If the determination result of the step S42 is negative, the feedback is fed back to the previous step of the step S41. By operating the pump (P1) is controlled so that the step (S43) to allow the condensed waste water in the gas-liquid converter 340 to be transported and stored in the condensed waste water storage tank 370. Thereafter, the controller 100 determines whether the condensed waste water in the gas-liquid converter 340 is in a low water level state based on the information received from the water level sensor 342 provided in the gas-liquid converter 340 (S44). If the determination result of S44 is negative, the operation of the first pump P1 is maintained by feeding back to the above-described step S43, and if the determination result of the step S44 is positive, the first pump (S44). The operation of P1) is stopped (S45). Next, the controller 100 proceeds to the step S46 of determining whether a system shutdown command is input, and when the determination result of the step S46 is positive, terminates the condensate generation step S40 and is negative. It feeds back to the above-mentioned step S41.

Looking at the air purification step (S50) with reference to Figure 6, the control unit 100 operates the washing machine (S51), and then determine whether the vacuum drying step (S30) has been finished (S52) and the above determination If the result is negative, the feedback to the above-described step (S51), and if it is positive, the operation of the washing machine is stopped (S53) and the air purification step (S50) ends.

Looking at the fuel molding / storage step (S60) with reference to Figure 7, the control unit 100 determines whether or not the vacuum drying step (S30) is terminated (S61) if the determination result is negative feedback to the previous step immediately If it is positive, by operating the drive motor (M1) and pellet molding machine (510) (S63, S64), the dry matter inside the vacuum drying unit 320 is provided to the pellet molding machine 510 through the transfer screw (531). In accordance with the pellet shaping process and the molded pellets are processed so as to be stored in the pellet storage tank (520). Thereafter, the control unit 100 determines whether or not all of the pellet molding is completed (S65). If the determination result is negative, the feedback is returned to the above-described step (S62), and if it is positive, the hatch of the vacuum drying unit 320 is closed. After (S66), the driving motor (M1) and the pellet molding machine 510 is stopped (S66, S67), and the fuel molding / storage step (S60) is finished.

Referring to FIG. 8, the fuel supply step S70 is performed. The control unit 100 determines whether the fuel amount is insufficient based on information received from the fuel amount sensor 315 provided in the fuel supply tank 313. If the determination result of step S71 is negative, the process proceeds to step S75 of determining whether to end (S71), and if the determination result of step S71 is affirmative, driving is performed. After the motor M2 is operated (S72), the method determines whether the fuel amount is appropriate based on the information received from the fuel amount sensor 315 (S71). If the result of the determination of the above step (S71) is negative, the feedback to the step (S72), and if the positive, the drive motor (M2) to stop the operation and then feed back to the previous step (S71). If the determination result S75 is affirmative, the control unit 100 ends the fuel supply step S70. If the determination result S75 is negative, the control unit 100 feeds back to the previous step S71.

Referring to the first water treatment step (S80) with reference to Figure 9, the control unit 100 is based on the information received from the water level sensor 371 provided in the condensate waste water storage tank 370 to determine whether the condensate waste water is full water level. The determination step S81 is performed. At this time, if the determination result of the above step (S81) is negative, the feedback to the previous step immediately before the step (S81), and if the positive, operates the fourth pump (P4) (S82). Thereafter, the control unit 100 proceeds to determining whether the atmospheric water storage tank is full water level and the condensation wastewater storage tank low water level state based on the information received from the water level detection sensors 371 and 441 (S83). If the determination result of the negative) is negative feedback to the above-described step (S82), and if it is positive, the operation of the fourth pump (P4) is stopped (S84). Thereafter, the control unit 100 operates the fifth pump P5 and simultaneously controls the opening and closing action of the third opening / closing valve V3 to be started (S84). Next, the control unit 100 determines whether or not to terminate (S86). If the determination result is negative, the control unit 100 feeds back to the previous step (S82), and if the positive, the fifth pump (P5) and the third opening and closing After the operation of the valve V3 is stopped, the first water treatment step S80 ends.

Therefore, in the first water treatment step S80 as described above, the fourth and fifth pumps P4 and P5 operate, and the opening and closing operations of the third valve V3 are repeated at regular time intervals. The waste water is discharged from the condensate wastewater storage tank 370, and various foreign matters in several micrometers are filtered while passing through the first, second and third pretreatment filters 411, 412, and 413, which in turn are solvent storage tanks. The mixture is properly mixed while passing through the mixer 430 implemented by a solvent (scaling inhibitor such as citric acid) and a line mixer, which is ejected from the 420, and then stored in the atmospheric reservoir 440. Although not shown, a bubble generator (not shown) is provided inside the atmospheric reservoir 440 to significantly increase the amount of dissolved oxygen by supplying oxygen to the stored water, while chemically acting on the solvent (scale inhibitor) (that is, pretreatment). It is possible to activate the chemical dissolution of the solids and organics that were not filtered in the filtration process).

Looking at the second water treatment step (S90) with reference to Figure 10, the control unit 100 determines whether the atmospheric water is in full water level state based on the information received from the water level sensor 444 provided in the atmospheric reservoir (440). Proceed to step S91. At this time, if the determination result is negative, the feedback is sent to the previous step of the above step (S91), and if it is positive, the sixth and seventh pumps (P6, P7) are operated (S92). Thereafter, the control unit 100 determines whether the atmospheric water in the atmospheric water storage tank 440 is low and the purified water in the ozone sterilization tank 470 is full water level based on the information received from the water level detection sensors 441 and 472. (S93), if the determination result of the above step (S93) is negative, the feedback to the above-mentioned step (S92), and if positive, stops the operation of the sixth and seventh pump (P6, P7) (S94). Thereafter, the control unit 100 determines whether or not to terminate (S95). If the determination result is negative, the control unit 100 feeds back to the previous step of the above-described step (S91), and if it is positive, terminates the second water treatment step (S90).

Therefore, in the above-described second water treatment step (S90), when the control unit 100 receives a detection signal indicating the appropriate level of the atmospheric water from the water level sensor 441 provided in the atmospheric reservoir 440, the controller ( 100 operates the sixth and seventh pumps P6 and P7 and opens the fourth and fifth valves V4 and V5 until a detection signal indicating low level is received from the water level sensor 441. The above-mentioned atmospheric water is subjected to water purification while passing through the first and second post-treatment filters 450 and 460. The purified water at the drinking water level is purified at the rear end of the second post-treatment filter 460. The concentrated wastewater discharged from the outlet 461 and stored in the ozone sterilization tank 470 and discharged from the concentrated wastewater outlet 462 provided at the trailing edge thereof is passed through a separate water pipe (not shown). It is to be fed back to the hopper (210). Of course, the purified water stored in the ozone sterilization tank 470 is ozone sterilized.

Referring to Figure 11 with reference to the purified water storage / drainage step (S100), after the control unit 100 operates the ozone generator (S101), received from the water level sensor 472 provided in the ozone sterilization tank 470 On the basis of the information, the process of determining whether the ozone sterilizing water is in the full water level state (S102). At this time, if the determination result is negative, the feedback to the previous step of the above step (S102), and if it is positive to operate the eighth pump (P8) (S103). Thereafter, the controller 100 proceeds to determining whether the ozone sterilization constant in the ozone sterilization tank 470 is in a low water level based on the information received from the water level sensor 472 (S103-2). If the result of the determination in S103-2 is negative, the feedback is returned to the previous stage of the above-described step S103-2, and in the case of affirmative, the operation of the eighth pump P8 is stopped (S103-3). Thereafter, the controller 100 determines whether the purified water storage tank 480 is in the full water level state based on the information received from the water level sensor 448 provided in the purified water storage tank 480 (S104). At this time, if the determination result is negative, the feedback to the above step (S103), and if it is positive to operate the tenth pump (P10) (S105). Next, the controller 100 determines whether the purified water stored in the purified water storage tank 480 is in a low water level state based on the information received from the water level sensor 448 provided in the purified water storage tank 480 (S105-2). If the result of the determination is negative, the feedback to the above-described step (S105), and if it is positive, after stopping the operation of the tenth pump (P10) (S105-3), it is determined whether to end. (S106) If the determination result is negative, the feedback is returned to the previous step of the above-described step S101, and if it is positive, the integer storage / drainage step S100 is terminated.

Therefore, in the purified water storage / drainage step (S100), when the control unit 100 receives a detection signal indicating the proper water level (full water level) from the water level sensor 472 provided in the ozone sterilization tank 470, the control unit ( 100 is operated by the eighth pump (P8) until the detection signal indicating the low water level is received from the water level sensor 472, the ozone sterilization constant is transferred to the purified water storage tank 480, at this time, the purified water storage tank 480 When the detection signal indicating the high water level of the integer is received from the water level detection sensor 481 provided in the control unit 100, the control unit 100 receives a detection signal indicating the appropriate level (low water level) from the water level detection sensor 481. By operating the tenth pump (P10) until the water is purified as described above is drained through the sewer, or can be provided to livestock farms, factories, etc. as used water (heavy water) through the sewer pipe.

Referring to FIG. 12, the hot water generation step S110 is performed. The controller 100 proceeds to the step S111 of opening the sixth valve V6, and the water temperature sensor 491 provided in the heat exchanger 490. Based on the information received from the step S), it is determined whether the purified water (heat exchange water) temperature in the heat exchanger 490 is in the range of 35 ° C to 50 ° C (that is, the purified water temperature is appropriate) (S112). At this time, if the above determination result is positive, the process is finished after the filter cleaning step (S130) which will be described later, but if negative, whether the temperature of the purified water (heat exchange water) is a high temperature state (that is, the purified water temperature is 50 ℃ or more) If the determination result is affirmative again (S113), if the result of the determination is affirmative, the step S114 in which the steam supplied from the pellet boiler 310 is blocked from entering the heat exchanger 490 by closing the sixth valve V6 is performed. After the process is fed back to the above-described step (S112), but if the determination result of the above step (S113) is negative is fed back to the previous step of the above-described step (S111).

Therefore, in the hot water generation step (S110), a predetermined amount of purified water is supplied from the purified water storage tank 480 to the heat exchanger 490, and in this state of the heat exchange water detected from the water temperature sensor 491 provided in the heat exchanger 490. The steam provided from the pellet boiler 310 is controlled to be introduced into and blocked from the heat exchanger 490 so that the temperature can be reached and maintained within a predetermined range (35 ° C ~ 50 ° C). Of course, the heat exchanger 490 has a structure in which heat exchange water therein can be heated through a heat exchange action with a steam pipe connected to the pellet boiler 310.

Looking at the filter cleaning step (S120) with reference to FIG. 13, the control unit 100 determines whether the second water treatment step (S90) is finished (S121) If the determination is negative, the step immediately above step (S121) If feedback to the previous step but the determination result of the above step (S121) is positive, the step (S122) to close the fourth and fifth valve (V4, V5) and operate the ninth pump (P9) to proceed To control. Thereafter, the controller 100 determines whether a predetermined time has elapsed (S123), and when the predetermined time (for example, about 10 minutes to about 20 minutes) has elapsed, the fourth and fifth valves V4 and V5 are opened. After stopping the operation of the ninth pump (P9) (S124), but if the predetermined time has not elapsed, the feedback to the above-described step (S122).

Therefore, the filter cleaning step S120 is performed only when all of the water purification processes for all condensate wastewater are completed. In the filter cleaning step S120, the fourth and fifth valves V4 and V5 are closed and the ninth step is performed. By operating the pump P9 for a predetermined time, the heat exchange water of the proper water temperature supplied from the heat exchanger 490 flows into the purified water outlet 461 and is stagnated between the various membranes formed in the second after-treatment filter 460. Along with the pollutants will be to proceed with the backwash process to be discharged through the concentrated wastewater outlet (462). After the above-described backwashing, the waste washing liquid is introduced (feedback) into the raw material hopper 210 through a water pipe (not shown). When hot water is used in the filter cleaning, the washing efficiency is improved by 30% or more compared to cold water, and thus the washing time can be reduced by about 30% compared to the filter washing using cold water, but the same cleaning effect can be obtained.

Referring to the washing water replacement step (S130) with reference to Figure 14, the control unit 100 determines whether the washing water replacement command is input (S131), if the determination result is negative to the previous step (S131) If the feedback is positive, but the determination result is affirmative, the control unit 100 proceeds to the step (S132) to operate the second pump (P2) by draining the waste washing water contained in the washing machine 360 to the condensate waste water storage tank (370) To be possible. Thereafter, the control unit 100 determines whether all of the waste washing water drainage actions are completed (S133). If the determination result is negative, the control unit 100 feeds back to the above-described step (S132), but if it is positive, the second pump ( Operation of P2) is stopped (S134). Next, after the control unit 100 operates the third pump P3 (S135), the controller 100 proceeds to the step S136 of determining whether all of the washing water is introduced into the washing machine 360, and the determination result is negative. If the feedback to the above-described step (S135), and if it is positive, after stopping the operation of the third pump (P3) (S137), the washing water replacement step (S130) ends.

Therefore, the washing water replacement step (S130) is preferably started by a certain period of time (for example, 7 days) or a user's manual command, and in the washing water replacement step (S130) by operating the second pump (P2) The contaminated washing water (waste washing water) contained in the washer 360 is discharged to the condensation wastewater storage tank 370, and when all such discharge operations are completed (that is, when the operation of the second pump P2 is stopped) As the three pumps P3 are operated, the purified water stored in the purified water storage tank 480 is introduced into the washing machine 360 as the washing water, so that the purified water thus added can be used as the washing water for the above-described purposes.

S10: waste pretreatment step S20: grinding waste conveying step
S30: vacuum drying step S40: condensate generation step
S50: Air purification step S60: Fuel forming / storage step
S70: fuel supply step S80: first water treatment step
S90: second water treatment step S100: purified water storage / drainage step
S110: hot water generation step S120: filter cleaning step
S130: washing water replacement step
100:
210: raw material hopper 220: debris remover
230: grinder 240: atmospheric hopper
250: piston pump
310: pellet boiler
311: steam supply pipe 312: steam recovery pipe
313: fuel supply tank 314: switchgear
315: fuel level sensor 320: vacuum drying unit
321: outside air inlet 322: temperature sensor
323: vacuum sensor 324: humidity sensor
330: dust collector / deodorizer 340: gas-liquid converter
341 cooler 350 vacuum pump
360: washing machine 370: condensate waste water storage tank
342, 371, 441, 472, 481: water level sensor
411, 412, 413: Pretreatment Filter
420: solvent storage tank 430: mixer (line mixer)
440: atmospheric reservoir tank 450: first post-treatment filter
460: second post-treatment filter 461: water purification outlet
462: concentrated wastewater outlet 470: ozone sterilization tank
471: ozone generator 480: water purification tank
490: heat exchanger 491: water temperature sensor
500: dry forming / supply unit 510: pellet molding machine
520: Pellet storage tank 531, 532: Transfer screw
M1, M2: drive motors P1 to P10: first to tenth pumps
V1 to V6: first to sixth valves

Claims (14)

A waste pretreatment step (S10) of selecting only pure food waste from the collected food waste and crushing and storing the pure food waste thus sorted;
Grinding waste pumping step (S20) for transferring the grinding waste to the vacuum drying unit;
Vacuum drying step (S30) for vacuum drying the pressure-completed grinding waste;
Condensate generation step (S40) for cooling and liquefying the steam generated through the vacuum drying step (S30);
An air purification step (S50) of purifying the air exhausted in the process of generating the condensed water (S40) and discharging it to the outside;
When the vacuum drying step (S30) is completed, the fuel molding / storage step (S60) for molding and storing the vacuum-dried product into a pellet shape and storing it;
A fuel supply step (S70) of allowing the pellets generated / stored through the fuel forming / storing step (S60) to be supplied and incinerated as a fuel of the pellet boiler in a vacuum drying step (S30);
A first water treatment step (S80) of purifying the condensed waste water and storing it after a predetermined amount of solvent is added to the condensed waste water generated through the condensed water generation step (S40);
After purifying the primary purified water through the first water treatment step (S80) using a membrane filter, and then storing it after ozone sterilization treatment, contaminated water that did not pass through the membrane filter was pretreated in the waste pretreatment step ( A second water treatment step S90 for feeding back to S10);
Purifying water storage / drainage step (S100) to store the purified and sterilized purified water through the second water treatment step (S90) and to drain it to the outside through the sewage pipe or sewage pipe (S100);
Hot water generation step (S110) to receive the purified water through the second water treatment step (S90) to be a temperature of 35 ℃ ~ 50 ℃;
A filter cleaning step (S120) for cleaning the membrane filter with hot water generated through the hot water generation step (S110);
Dissipation method of food waste, characterized in that it comprises a.
According to claim 1, The waste pretreatment step (S10),
a) the scavenger remover 220 and the crusher 230 are operated so that the crumbs contained in the food waste are removed by the scavenger remover 220 and then finely pulverized through the grinder 230 (S11 and S12);
b) storing the crushed waste generated in the step a) in the atmospheric hopper 240 (S13); Dissipation method of food waste, characterized in that it comprises a.
delete The method of claim 1, wherein the vacuum drying step (S30),
a) heating the vacuum drying unit 320 by operating the pellet boiler 310 (S31);
b) detecting the internal temperature, air pressure, and humidity of the vacuum drying unit 320 through the temperature sensor 322, the vacuum sensor 323, and the humidity sensor 324 provided inside the vacuum drying unit 320, respectively. Step S32;
c) stopping the operation of the pellet boiler 310 when the temperature detected through the step b) falls within the range of 25 ° C. to 50 ° C. (S34);
d) detecting the barometric pressure information corresponding to the above-described detected temperature from the prestored data (S35), detecting the output value of the vacuum pump corresponding to the detected barometric pressure information (S36), and then outputting the detected pressure Operating the vacuum pump by means of pressure (S37); Dissipation method of food waste, characterized in that it comprises a.
The method of claim 4, wherein after step d),
e) When the humidity sensed through the step b) reaches a preset range and the state continues for a predetermined time, the outside air inlet 321 is gradually opened for a predetermined time and at the same time, the vacuum pump 350 The operation of the food waste, characterized in that the output is gradually lowered for a predetermined time, and finally the operation is stopped (S39) further comprises.
According to claim 1, The condensation water generating step (S40),
a) operating the cooler (S41);
b) when the condensed waste water in the gas-liquid converter 340 is in the full water level, the first pump P1 is operated to allow the condensed waste water in the gas-liquid converter 340 to be transferred to and stored in the condensed waste water storage tank 370 (S43). ;
c) step S45 of stopping the operation of the first pump P1 when the condensed waste water in the gas-liquid converter 340 is in a low water level;
Dissipation method of food waste, characterized in that it comprises a.
According to claim 1, The air purification step (S50),
a) step S51 of operating the cleaner 360;
b) stopping the operation of the washer 360 when the vacuum drying step S30 is completed (S53); Dissipation method of food waste, characterized in that it comprises a.
According to claim 1, The fuel forming / storage step (S60),
a) when the vacuum drying step (S30) is finished, the operation of the driving motor (M1) and pellet molding machine (510) (S63, S64);
b) storing the resultant dried through the vacuum drying unit 320 is provided to the pellet molding machine 510 through the transfer screw 531, and then pelletized and stored in the pellet storage tank 520;
c) when all of the pellet molding is completed, the hatch of the vacuum drying unit 320 is closed, and the driving motor M1 and the pellet molding machine 510 are stopped (S66 and S67); Dissipation method of food waste, characterized in that it comprises a.
According to claim 1, The fuel supply step (S70),
a) operating the driving motor M2 when the amount of fuel stored in the fuel supply tank 313 is insufficient;
b) stopping the operation of the driving motor M2 when the amount of fuel stored in the fuel supply tank 313 is appropriate; Dissipation method of food waste, characterized in that it comprises a.
The method of claim 1, wherein the first water treatment step (S80),
a) step S82 of operating the fourth pump P4 when the condensed wastewater storage tank 370 is in the full water level;
b) When the air storage tank is full level and the condensation waste water storage tank is low, the operation of the fourth pump (P4) is stopped (S84), the fifth pump (P5) is operated and the opening and closing action of the third opening and closing valve (V3) Is initiated step (S84); Dissipation method of food waste, characterized in that it comprises a.
The method of claim 1, wherein the second water treatment step (S90),
a) step (S92) of operating the sixth and seventh pump (P6, P7) when the atmospheric reservoir 440 is full water level;
b) stopping the operation of the sixth and seventh pumps P6 and P7 when the air storage tank 440 is at a low water level and the ozone sterilization tank 470 is at a full water level (S94); Dissipation method of food waste, characterized in that it comprises a.
According to claim 1, wherein the integer storage / drainage step (S100),
a) operating the ozone generator (S101);
b) step (S103) of operating the eighth pump (P8) when the ozone sterilization tank 470 is full water level;
c) stopping the operation of the eighth pump P8 when the ozone sterilization tank 470 is at a low water level (S103-3);
d) step S105 of operating the tenth pump P10 when the purified water storage tank 480 is at full water level;
e) stopping the operation of the tenth pump P10 when the water storage tank 480 is at a low water level (S105-3); Dissipation method of food waste, characterized in that it comprises a.
According to claim 1, The hot water generating step (S110),
a) opening the sixth valve V6 (S111);
b) the filter cleaning step (S120) is carried out when the temperature of the heat exchange water in the heat exchanger 490 reaches a range of 35 ℃ ~ 50 ℃;
c) step S114 of closing the sixth valve V6 when the temperature of the heat exchange water is 50 ° C. or more; Dissipation method of food waste, characterized in that it comprises a.
The method of claim 1, wherein the filter cleaning step (S120),
a) when the second water treatment step (S90) is finished, the fourth and fifth valves (V4, V5) are closed and the ninth pump (P9) is operated (S122);
b) when the predetermined time has elapsed, the fourth and fifth valves V4 and V5 are opened and the operation of the ninth pump P9 is stopped (S124); Dissipation method of food waste, characterized in that it comprises a.

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