KR20130093389A - Resource conversion system of food refuse - Google Patents

Abstract

PURPOSE: A resource conversion system of eliminating odor is adapted to eliminate odor generated in a food waste process and remaining odor of products, reducing the abhorrence for the food waste treatment equipment. CONSTITUTION: A resource conversion system of eliminating odor (100) includes a stirrer (200), a combustion device (300) and an eliminating odor filter part (400). The stirrer accommodates a space where food waste is stirred and processed. The combustion device is bonded to the inner space of the stirrer to absorb and burn odor generated inside of the stirrer. The eliminating odor filter part is coupled to an exhaust pipe of the combustion device to eliminate the odor remained in exhaust gas after burning odor in the combustion device.

Description

Food Waste Recycling System {RESOURCE CONVERSION SYSTEM OF FOOD REFUSE}

The present invention relates to a food waste recycling system, and more particularly, to a processing system for processing food waste to be utilized as a resource such as feed or compost, and to remove odors generated during the processing process to remove odors from around the facility and produced products. It is about a food waste recycling system that can prevent it from going out.

The present society has become more and more rich in the lives of the members of society as the income of the people and the improvement of the national income, and the diet which is a necessary condition for the living of human beings, are also getting richer. Therefore, while the inability to normally eat food in the old lifestyle has been reduced, the amount of food that is left unnecessarily on the enriched table is increasing.

Since these food wastes generate considerable leachate during landfill, which contaminates soil and groundwater, the government has banned dumping of marine wastes and landfilling since 2005. In particular, since food waste contains a large amount of water, it causes odors as the water leaks to the outside, and inhabits pests and mice that transmit diseases caused by various germs, causing serious pollution of the surrounding environment. .

Accordingly, the food waste is recycled and supplied in the form of compost for growing feed and various crops provided to various livestock or animals. The recycling of food waste has an excellent effect on reducing economic benefits and environmental pollution.

In order to recycle the food waste in the form of feed / compost as described above, the food is sterilized by heating, dried and crushed to go through the process of manufacturing. In this process, food waste is put into a hopper, and each process is performed by a crusher, a dehydrator, a vacuum cooker, a dryer, or a pulverizer to produce a feed / compost.

However, there is a disgust for treatment facilities due to the odor generated in the process of food waste composting and composting, there is a problem that the odor remains in the product produced, which satisfies the satisfaction of the produced product.

The present invention was created to solve the above problems, by separately collecting, burning and filtering the odor gas generated in the process of processing food waste to provide a food waste recycling system to minimize the odor generated during the processing of food waste Its purpose is to.

The food waste recycling system according to the present invention for achieving the above object is a stirrer for providing a processing space in which the food waste is stirred and treated, and the odor gas generated in the interior of the stirring device in communication with the inner space of the stirring device; And a odor removing filter unit connected to an exhaust port of the combustion device to remove the odor remaining in the exhaust gas exhausted after being burned by the combustion device.

The combustion apparatus includes a combustion chamber in which the odor gas discharged from the stirring device is introduced and combusted, and a heat exchange chamber communicating with the combustion chamber and recovering waste heat of the exhaust gas, wherein the external air supplied to the combustion chamber is supplied to the combustion chamber. It is preferable that a heat exchange member having a passage formed therein and having a plurality of passage holes formed therein for communicating the upper and lower portions of the heat exchange chamber to allow the exhaust gas to move therethrough.

Food waste recycling system is installed in the exhaust pipe connecting the combustion device and the odor removal filter, the sensor for detecting the odor of the exhaust gas passing through the exhaust pipe, and the detection sensor on the path of the exhaust gas passing through the exhaust pipe A branch pipe installed at the rear and branched to discharge the exhaust gas into the atmosphere, an open / close valve for selectively opening and closing the exhaust pipe or the pipe of the branch pipe, and receiving exhaust gas detected by the sensor And a controller for driving the on / off valve to open the branch pipe and close the exhaust pipe when the malodor is lower than the set reference value, wherein the combustion device is configured to introduce air to be supplied to the combustion chamber into the heat exchange member. The blower is provided, the blower of the heat exchange member Humidifying means for supplying moisture to the air that is supplied to this may be further provided.

The food waste recycling system according to the present invention can reduce the aversion to the treatment facility by removing the odor generated during the processing of food waste, and also eliminates the odor remaining in the produced product to increase the satisfaction with the product. There is this.

1 is a block diagram showing an embodiment of a food waste recycling system according to the present invention,
Figure 2 is a partially cutaway perspective view of the stirring device of Figure 1,
3 is a perspective view of the gas combustion device of FIG. 1;
4 is a cross-sectional view of the gas combustion device of FIG.
5 is a circuit diagram illustrating a pipeline control unit installed on a pipeline connecting a gas combustion device and a biofilter;
6 is a partial exploded perspective view showing an extract of the conveying screw portion of Figure 1,
7 is a cross-sectional view of the feed screw unit of FIG.

Hereinafter, a food waste recycling system according to the present invention will be described in more detail with reference to the accompanying drawings.

1 to 5 illustrate a preferred embodiment of the food waste recycling system 100 according to the present invention.

Referring to the drawings, the food waste recycling system 100 includes an import storage hopper 110 into which food waste is brought in, and a sorter 120 that sorts the food waste transferred from the import storage hopper 110 into food waste and junks; , Agitation device 200 for processing the selected food wastes to be recycled and feed, a combustion device 300 for burning the odor generated in the agitation device 200, and odor removal filter unit for removing the odor ( 400).

Carrying storage hopper 110 is to be able to bring in the food waste towels by the vehicle is formed on the one side is the entrance to the food waste discharged from the vehicle, there is a predetermined inside that can be stored food waste Has a storage space.

The other side of the carry-in storage hopper 110 is formed with a discharge port for discharging the stored food waste to the outside, the food waste discharged from the discharge port is introduced into the sorter 120 by the transfer screw unit 130.

The sorter 120 removes foreign substances such as vinyls or metals contained in the food waste and sorts the food waste that can be fed or composted.

The food waste sorted by the sorter 120 is discharged from the sorter 120 and then supplied to the stirring apparatus 200 by the transfer screw 130.

Of course, in the process of supplying the food waste to the stirring apparatus 200, a separate auxiliary material may be added to enable the fermentation and dehydration of the food waste smoothly.

The conveying screw unit 130 for transporting food waste from the hopper 110 to the sorter 120 or from the sorter 120 to the stirring device 200 is a conveying pipe as shown in FIGS. 6 and 7. 131, a screw member 132 installed inside the conveying pipe 131, a conveying motor 133 for rotating the screw member 132, a coupling member 134 installed in the conveying pipe, connection A pipe 135, a suction pump 136, a shield plate 137, and a scraper 138 are included.

The conveying pipe 131 has a suction port 131a formed on one side to discharge odor gas generated from the food waste passing through the transport pipe 131, and covers the suction port 131a. 134 is coupled to the transfer pipe 131.

In addition, the discharge member 134a is formed in the coupling member 134 to allow the odor gas to escape, and the connection pipe 135 is coupled to communicate with the discharge hole 134a, thereby discharging the discharge port 134a and the odor removing filter unit. 400 is connected to each other, the suction pipe 136 is installed in the connection pipe 135, the odor gas by the force of the suction pump 136 through the discharge port 134a and the connection pipe 135 Move to the odor removal filter unit 400.

The shielding plate 137 is installed on the coupling member 134 to prevent food waste from leaking from the transfer pipe 131 and the coupling member 134 through the discharge port 134a. The passage of garbage is a plate formed with a plurality of small diameter vents that can be blocked.

And the scraper 138 is coupled to the screw member 132 to rotate the area adjacent to the shield plate 137, and rotates with the screw member 132 to scrape the food waste attached to the shield plate 137 It is to bet.

Although some food waste moves together with the malodorous gas in the process of the malodorous gas escapes from the transfer pipe 131 by the suction force of the suction pump 136, as described above, the small size of the ventilation hole, the food waste is shielding plate 137 It is attached to the lower surface of the shield plate 137 without passing through, because a problem that the air vents are blocked by food waste may occur, install a scraper 138 in contact with the shield plate 137 to the screw member 132 Food waste attached to the shield plate 137 is removed.

In the case of the conveying screw unit 130, while the food waste is transported while the food waste is being transported while being stirred by the screw member 132, the amount of odor gas is generated. Maximize the odor removal effect by removing the.

As shown in FIG. 2, the stirring device 200 includes a stirring tank 210, a stirring unit 220 installed inside the stirring tank 210 to stir food waste, and an inside of the stirring tank 210. It is provided with a heating heater 230 for heating.

Although not shown, the stirring tank 210 is formed with a hopper so that the food waste sorted by the sorter 120 can be put on one side, and the food waste is fed into the stirring tank 210 through the hopper. Inflow.

Inside the stirring tank 210, dehydration and fermentation are made so that food waste can be used as feed or fertilizer. Microorganisms may be introduced into the stirring tank 210 to increase the fermentation rate.

The stirring unit 220 is a rotating shaft 221 extending across the inner space of the stirring tank 210, a plurality of stirring blades 222 installed on the rotating shaft 221, and to drive the rotating shaft 221 It includes a drive motor 223 for.

The rotating shaft 221 extends in the front-rear direction of the stirring tank 210 and both ends thereof are rotatably supported by the stirring tank 210. And the stirring blades 222 are formed to be spaced apart from each other by a predetermined interval along the longitudinal direction of the rotary shaft 221, extending in the radial direction from the rotary shaft 221 to agitate the food waste when the rotary shaft 221 rotates.

The drive motor 223 is installed outside the stirring tank 210 to drive the rotation shaft 221, the driven pulley 225 is provided at the end of the rotation shaft 221, the belt 226 through the The driven pulley 225 is connected to the drive pulley 224 installed in the drive motor 223 to transmit the driving force of the drive motor 223 to the rotation shaft 221 to rotate the rotation shaft 221.

A lower portion of the stirring tank 210 is provided with a housing 211 for supporting the stirring tank 210, and a heating heater 230 for heating the stirring tank 210 is provided inside the housing 211.

The heating heater 230 is a heating body 231 surrounding the lower portion of the stirring tank 210, a heating fluid filled in the internal space of the heating body 231, and installed inside the heating body 231 to heat It includes a heater 232 for heating the fluid to maintain the internal temperature of the stirring tank 210 to a predetermined level or more to facilitate the processing of food waste.

The upper portion of the stirring tank 210 is provided with a connection tube 240 to suck the odor gas generated during the processing of food waste in the stirring tank 210, the connection tube 240 is a combustion described later It is connected to the device 300 to supply the odor gas to the combustion device (300). In addition, the upper part of the stirring tank 210 is provided with a first blower 250 for forcibly moving the odor gas to the connection pipe 240 so that the odor gas is discharged through the connection pipe 240.

The combustion device 300 is to burn to remove the odor of odor gas discharged from the stirring device 200 through the connection pipe 240.

In general, the odor-causing substances are a lot of organic substances containing sulfur or nitrogen, and most of them are flammable, so when the odor-causing substances are burned, odors may be removed. Therefore, the odor gas is discharged through the connection pipe 240 to remove the odor.

The combustion device 300 includes a combustion chamber 310 providing a combustion space in which odor gas is combusted, and a heat exchange chamber 320 communicating with the combustion chamber 310 and recovering waste heat of exhaust gas discharged from the combustion chamber 310. It is provided.

The connection pipe 240 is connected to the combustion chamber 310 to supply odor gas, and an air supply pipe 312 is also connected to supply air for combustion. In addition, a burner 311 is provided in the combustion chamber 310, and the odor gas is burned by the burner 311 after the odor gas is introduced.

Exhaust gas generated after the combustion of the odor gas is an odorless exhaust gas with almost no smell because the odorous substances are removed. This exhaust gas passes through the heat exchange chamber 320 and passes through the exhaust pipe 350 to burn the combustion apparatus 300. Discharged outside).

The heat exchange chamber 320 is for recovering waste heat contained in the exhaust gas.

Inside the heat exchange chamber 320, the first and second heat exchange members 321 and 322 are formed to be spaced apart from each other by a predetermined interval. The first and second heat exchange members 321 and 322 are supplied to the combustion chamber 310, respectively. Is provided with a moving space that can move inside, the outside air is connected to enter the second heat exchange member 322 through the extension pipe 323 after passing through the first heat exchange member 321, the second heat exchange member The air discharged from 322 is supplied to the combustion chamber 310 through a supply pipe.

The first and second heat exchange members 321 and 322 are formed with passage holes 324 penetrating the upper and lower portions, respectively, so that the exhaust gas can move upward through the passage holes 324. Therefore, the exhaust gas exchanges heat with external air passing through the inside of the heat exchange member while passing through the passage hole 324 to heat the external air.

The supply of the external air to the combustion chamber 310 while the external air is heated in the heat exchange chamber 320 is to increase the combustion efficiency in the combustion chamber 310. As described above, in the combustion chamber 310, odor-causing substances are burned to remove odors. When the combustion is incomplete, not only the odor removal efficiency is lowered, but also aldehydes, ketones, or other unsaturated acids generated by partial oxidation are generated. Because it can be severe, air is preheated to increase combustion efficiency.

A second blower 330 is installed on the outer wall of the heat exchange chamber 320 to suck steel into the first heat exchange member 321 so that the outside air is heat exchanged by the second blower 330. After heated in the combustion chamber 310 is supplied.

In addition, the second blower 330 is provided with a humidifying means 340 for supplying moisture to the air flowing into the first heat exchange chamber 320. The humidifying means 340 is capable of dropping a predetermined amount of water into the blowing fan of the second blower 330, the dropped water is introduced into the first heat exchange chamber 320 with the air by the blower.

The reason for providing the humidifying means 340 is to induce the generation of the brown gas in the process of the water passing through the first and second heat exchange chamber 320 together with the air by the waste heat of the exhaust gas. When brown gas is supplied to the air supplied to the combustion chamber 310, the amount of fossil energy supplied for combustion of the combustion chamber 310 can be drastically reduced due to the combustion characteristics of the brown gas, and the combustion efficiency in the combustion chamber 310 can be reduced. It can increase.

In general, brown gas is produced through electrolysis and used as an auxiliary fuel of an incinerator, but brown gas is generated even when moisture is heated at a high temperature. Therefore, the brown gas is generated and supplied by heating moisture introduced together with the air in the heat exchange chamber 320 to recover the waste heat of the exhaust gas.

The exhaust gas discharged from the combustion device 300 moves to the odor removing filter unit 400 through the exhaust pipe 350.

The odor removal filter unit 400 is a odor removal filter commonly called a bio filter, and removes odor through a microorganism deodorization method that converts odor substances into carbon dioxide, water, and mineral salts by using microorganisms attached to the tin. .

Even after passing through the combustion device 300 to remove the odorous substances remaining in the exhaust gas to maximize the deodorization efficiency.

As shown in FIG. 1, the odor removing filter unit 400 collects and deodorizes the odor gas generated from the loading storage hopper 110 and the separator 120, and discharges the odor gas into the atmosphere.

In addition, as shown in FIG. 5, the exhaust pipe 350 is connected to a branch pipe 360 for directly discharging the exhaust gas into the atmosphere, and whether the odor of the exhaust gas is generated in front of the connection point of the branch pipe 360. A detection sensor 370 for detecting is installed, and at an installation point of the branch pipe 360, an exhaust pipe 350 connected to the branch pipe 360 and the odor removal filter unit 400 to control the movement path of the exhaust gas. An on-off valve 380 for selectively opening and closing the pipe is provided.

The sensor 370 detects a malodorous component or VOC component included in the exhaust gas passing through the exhaust pipe 350 and transmits the detected information to the controller. The controller collects the detection information transmitted from the detection sensor 370 and drives the on-off valve 380 to be described later according to the detection amount of the odor component detected.

The on-off valve 380 is for guiding the movement path of the exhaust gas to the pipe of the exhaust pipe 350 connected to the branch pipe 360 and the odor removing filter unit 400. When the branch pipe 360 is opened, the odor removing is performed. The exhaust pipe 350 connected to the filter unit 400 is closed, and when the exhaust pipe 350 is opened, the pipe line is opened and closed so that the branch pipe 360 is closed.

The controller closes the branch pipe 360 and closes the exhaust pipe 350 so that the exhaust gas passes through the odor removal filter unit 400 when the odor component detected by the detection sensor 370 is detected to be higher than a predetermined reference value. Open.

In this way, if the exhaust gas discharged from the combustion device 300 is sufficiently deodorized by selectively opening the branch pipe 360 according to the detection information of the sensor 370 in the controller, the odor removal filter unit 400 is not directly passed through. By exhausting the air to increase the service life of the odor removing filter unit 400.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100; Food Waste Recycling System
110; Import storage hopper 120; Selector
130; Feed screw part
200; Agitator
300; Combustion device
400; Deodorization filter part

Claims (5)

A stirring device for providing a processing space in which food waste is stirred and treated;
A combustion device communicating with an internal space of the stirring device to suck and burn odor gas generated inside the stirring device;
And a odor removal filter unit connected to an exhaust port of the combustion device to remove odors remaining in the exhaust gas exhausted after being burned by the combustion device. The method of claim 1,
The combustion apparatus includes a combustion chamber in which the odor gas discharged from the stirring device is introduced and combusted, and a heat exchange chamber communicating with the combustion chamber and recovering waste heat of the exhaust gas.
The heat exchange chamber has a passage formed therein for introducing external air supplied to the combustion chamber, and has a plurality of through-holes through which upper and lower portions of the heat exchange chamber communicate with each other to allow the exhaust gas to move. Food waste recycling system, characterized in that the member is provided. The method of claim 2,
Is installed in the exhaust pipe connecting the combustion device and the odor removal filter,
Detection sensor for detecting the odor of the exhaust gas passing through the exhaust pipe,
A branch pipe installed behind the detection sensor on a path of the exhaust gas passing through the exhaust pipe and branched to discharge the exhaust gas into the atmosphere;
Opening and closing valve for selectively opening and closing the pipe of the exhaust pipe or branch pipe,
And a controller for driving the opening / closing valve so that the branch pipe is opened and the exhaust pipe is closed when the detection information of the sensor is received and the odor of the exhaust gas detected by the sensor is lower than the set reference value. Garbage Recycling System. The method of claim 3, wherein
The combustion device is provided with a blower for introducing air to be supplied to the combustion chamber into the heat exchange member,
The blower is a food waste recycling system, characterized in that the humidification means for supplying water in the air supplied to the inside of the heat exchange member is further provided. 5. The method of claim 4,
Further comprising a transport screw for transferring the food waste to the stirring device from the carry-in hopper into which food waste is introduced,
The conveying screw portion and the conveying pipe of a predetermined diameter,
A screw member rotatably installed in the conveying pipe and transferring food waste from one side to the other side;
A transfer motor installed in the transfer pipe to rotate the screw member;
A coupling member installed at a suction port formed at one side of the transfer pipe and having a discharge hole communicating with the suction hole;
A shielding plate having a plurality of vent holes through which only gas can pass to prevent food waste from being discharged through the outlet of the coupling member;
A connecting pipe connecting the discharge port of the coupling member and the odor removing filter part;
A suction pump installed on a conduit of the connection pipe to suck odor gas in the transfer pipe and pump the odor gas to the odor removal filter;
And a scraper installed on the screw member, the scraper removing food waste attached to the lower surface of the shielding plate when the screw member is rotated.

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