KR101236599B1 - A food waste disposal apparatus - Google Patents

Abstract

PURPOSE: A food waste disposal apparatus is provided to remarkably reduce the amount of food waste and to effectively remove odor ingredients. CONSTITUTION: A food waste disposal apparatus comprises: a stirring tank(10), a heater part, an OH radical generation unit, a moisture removal unit(50), a collection case(60), an activated charcoal filter, a waste gas transfer unit(80), and a crushing screw(90). The heater part heats the inside of the stirring tank.

Description

Food waste disposal apparatus

The present invention relates to a food waste treating apparatus, and more particularly, to a food waste treating apparatus capable of effectively treating food waste having a high moisture content.

In general, a large amount of food waste occurs every day in homes and restaurants. These food wastes are typically collected in a dedicated collection box and then carried in a dedicated vehicle and transported to a food waste treatment plant for disposal. At this time, the treatment of food waste has been buried in the land in the past, causing pollution to the soil environment, and in recent years has been incinerated.

However, food waste contains more than 80% water, which consumed a lot of energy when incinerated. In addition, since food waste is easily decayed, a lot of odors were generated during the treatment process, and thus the living environment around the treatment plant was inferior and became a subject of complaint from many people.

The government is making various attempts to reduce the amount of food waste. One example is the food waste pay system, which is responsible for the disposal cost according to the amount of food waste that is thrown away. Therefore, in a place where a lot of food waste occurs, such as a restaurant, the situation has to reduce the amount of food waste, or to deal with food waste by itself.
Under these circumstances, the industry is devoted to the development of technology to reduce the amount of food waste by drying, the technology for drying food waste is disclosed in the prior art patent registration No. 10-0340619.
According to the prior art, the device for drying the food waste is composed of a gas and a discharge outlet on one side of the inner and the outside is formed in multiple stages to be inclined downward in a zig-zag inside the gas so that the food waste can naturally fall and move. And a blower for supplying the hot air generated from the heat exchanger so as to evaporate and dry the water contained in the food waste falling naturally through the guide and installed above the outlet, and can help the natural fall of the food waste. It is configured to include a vibrator to shake the gas so that. By this configuration, since food waste falls naturally along the zigzag guide, the time for staying inside the gas is long, and thus hot air can dry moisture from the food waste.
However, in the case of the food waste drying apparatus described above, the drying of the food waste proceeds during a natural fall through the zigzag downwardly sloping guide, and as a result, it is difficult and time consuming to dry a large amount of food waste. There was this.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a food waste processing apparatus that can drastically reduce the amount of the processed result by treating and drying food waste in a short time.

Another object of the present invention is to provide a food waste treatment apparatus capable of producing a treatment result that can be utilized as fertilizer or building materials.

In order to achieve the above object, the food waste treatment apparatus according to the present invention, the food waste is put into the stirring tank 10 is installed inside the stirrer 20; A heater unit 30 for heating the inside of the stirring tank 10; An OH radical generator 40 installed in the stirring tank 10 to generate OH radicals; A dehumidifying unit (50) for condensing water vapor in which odors are partially removed by the OH radicals and separating the waste water and waste gas; Recovery bin 60 for recovering the waste water and waste gas separated from the dehumidifying unit 50; An activated carbon filter 70 having activated carbon for removing odor from the waste gas; A waste gas conveying unit (80) for conveying some of the waste gas via the recovery container (60) to the activated carbon filter (70) and for conveying the rest to the OH radical generating unit (40); And a conveying crushing screw (90) which is crushed while conveying the food waste which has been reduced in volume by drying in the stirring tank (10).

In the present invention, the stirrer 20, the shaft portion 21 is rotated through the stirring tank 10 in the horizontal direction, and the inclined surface facing both sides as installed in the radial direction from the shaft portion 21 ( 22a ') and 22b') between the pair of swinging blades 22a and 22b for stirring and turning the food waste to both sides and the pair of swinging blades 22a and 22b. Horizontal planes 23a 'and 23b' are formed on the shaft portion 21 in a radial direction, and are composed of separation blades 23a and 23b for separating the food waste from the inner circumferential surface of the stirring tank 10.

In the present invention, the heater unit 30 is installed on the lower side of the stirring tank 10, the oil storage body 31 and the oil (L) housed therein, and built in the oil storage body 31 And a heater 32 for heating the oil L.

In the present invention, the dehumidifying unit 50, the first header 51 is connected to the stirring tank 10, the second header 52 is connected to the recovery container 60, and the first And a plurality of condensation tubes 53 connecting between the two headers 51 and 52, heat dissipation fins 54 connecting the condensation tubes 53 and the other condensation tubes 53 ', and the plurality of condensations. Blowing fan 55 for blowing wind to the tube 53 and the heat radiation fins (54).

In the present invention, the manganese dioxide catalyst 65 is embedded in the recovery container 60.

In the present invention, the waste gas conveying unit 80, the suction fan 81 is connected to the recovery container 60, and a part of the waste gas sucked by the suction fan 81 to the activated carbon filter 70 And a second pressure pipe 83 for pumping the remaining waste gas into the stirring tank 10.

In the present invention, the transfer crushing screw 90, the inlet side (91a) is connected to the lower side of the stirring tank 10, the outlet body (91b) side of the tubular body 91 and the tubular body, Screw 92 is installed in the body 91, and the drive unit 93 is installed on the cylindrical body 91 for rotating the screw 92.

According to the present invention, it is possible to effectively reduce the amount of the processed product by effectively removing the steam generated during the stirring of the food waste in the heated stirring tank through the dehumidifying unit, and transporting and crushing the food waste from which the steam has been removed. have. Furthermore, the resulting crushed treatment can be used as fertilizer or building materials.

In addition, during the treatment of food waste, the OH radical generator supplies OH radicals into the stirring tank to remove odor components contained in water vapor, condenses water vapor in the dehumidification unit, separates them into waste water, and then removes the odor components contained in the wastewater. In addition, by removing the odor component again by passing a portion of the waste gas through the activated carbon filter, and turning the remainder of the waste gas into the stirring tank to repeat the above cycle, to effectively remove the odor component several times. Can be. Therefore, odors are not generated in the process of treating food waste, and therefore, it can be installed and used in a place where many people live, for example, a restaurant.

1 is a perspective view of a food waste processing apparatus according to the present invention viewed from the front,
2 is a perspective view of the food waste treating apparatus of FIG. 1 viewed from the rear;
3 is a view for explaining that the food waste is stirred by the stirrer in the stirring tank of FIG.
4 is a view for explaining the configuration of the agitator and heater in the stirring tank of FIG.
5 is a perspective view showing an extract of a part of a condensation tube and a condensation fan in the dehumidifying part of FIG.
6 is a view for explaining the configuration of the waste gas conveying unit of FIG.
7 is a view for explaining the configuration of the conveying crushing screw of FIG.

Hereinafter, the food waste treatment apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of the food waste processing apparatus according to the present invention from the front, FIG. 2 is a perspective view of the food waste processing apparatus of FIG. 1 from the rear, and FIG. 3 is a food waste by the stirrer in the stirring tank of FIG. Is a view for explaining that the stirring. 4 is a view for explaining the configuration of the stirrer and the heater in the stirring tank of FIG. 1, Figure 5 is a perspective view showing a part of the condensation tube and the condensation fan in the part of FIG. 6 is a view for explaining the configuration of the waste gas conveying unit of Figure 1, Figure 7 is a view for explaining the configuration of the conveying crushing screw of FIG.

As shown, the food waste treatment apparatus according to the present invention, the food waste is put into the stirring tank 10 is installed agitator 20 therein; A heater unit 30 for heating the inside of the stirring tank 10; An OH radical generator 40 installed in the stirring tank 10 to generate OH radicals; A dehumidifying unit (50) for condensing water vapor in which odors have been partially removed by OH radicals and separating the waste water and waste gas; A waste container 60 into which waste water and waste gas separated from the dehumidifying unit 50 are introduced; An activated carbon filter (70) containing activated carbon for removing odor from waste gas; A waste gas conveying unit 80 for conveying some of the waste gas via the recovery container 60 to the activated carbon filter 70 and for conveying the rest to the OH radical generating unit 40; A conveying crushing screw 90 which is crushed while conveying the food waste which has been reduced in volume by drying in the stirring tank 10; It includes; a discharge box for storing the processing result conveyed by the transfer crushing screw (90).

The agitation tank 10 is a place where food is stirred, and an inlet 11 through which food waste is input, and a cover 12 for opening and closing the inlet 11.

The inlet 11 has a size of about 100 cm in width and width so that a large amount of food waste can be input. Therefore, the cover 12 which opens and closes the inlet 11 must have a large size and must be quite heavy. . A shock absorber (not shown) may be installed between the side of the cover 12 and the stirring tank 10 so that the heavy cover 12 can be easily opened and closed.

The stirrer 20 stirs the food waste evenly in the stirring tank 10 and prevents it from sticking to the inner circumferential surface of the stirring tank 10 during the stirring. To this end, the stirrer 20, as shown in Figure 3, the shaft 21 is rotated through the stirring tank 10 in the horizontal direction, and is installed in the radial direction from the shaft portion 21 opposite to both sides A shaft portion between the pair of swinging blades 22a and 22b for stirring and displacing food waste at the same time by having the inclined surfaces 22a 'and 22b' and the pair of swinging blades 22a and 22b. Separation blades (23a) and (23b) for separating food waste from the inner circumferential surface of the agitating tank (10) as horizontal surfaces (23a ') (23b') are formed in (21) and the shaft portion (21). It consists of a drive part 24 for rotating. By this configuration, the food waste W in the stirring tank 10 is turned in the direction of the arrow by the swinging blades 22a and 22b, and the separating blades 23a and 23b are stirred tanks 10. Prevent food waste from sticking to the floor.

The heater unit 30 indirectly heats the stirring tank 10. 3 and 4, the heater unit 30 is installed in the lower side of the stirring tank 10, the oil storage body 31 and the oil storage body 31 is accommodated therein, the oil storage body 31 It includes a heater 32 is built in to heat the oil (L). By this configuration, the heater 32 heats the oil L, and the heated oil L evenly heats the lower side of the stirring tank 10.

If the heater 32 is directly attached to the agitation tank 10 without employing the oil storage body 31, the portion where the heater 32 closes is excessively overheated to burn food waste, and from the heater 32. The distant part is not heated so that the food waste is not smoothly dried in the stirring tank 10.

The OH radical generating unit 40 removes odors of water vapor generated in the stirring tank 10 by using the generated OH radicals or removes odors of waste gas conveyed by the waste gas conveying unit 80 to be described later. The OH radical generator 40 has a structure including a photocatalyst and an ultraviolet lamp, and may be installed directly in the stirring tank 10 or may be installed in the waste gas pump 80 to be described later. The generated OH radicals are supplied into the stirring tank 10. Since the OH radical generator 40 is a technique known in the sterilization art, further detailed description will be omitted.

The dehumidifying unit 50 is for separating the waste water and the waste gas by condensing and liquefying water vapor. 1 and 4, the dehumidifying unit 50 includes a first header 51 connected to the stirring tank 10 and a second header 52 connected to the recovery container 60. , A plurality of condensation tubes 53 connecting between the first and second headers 51 and 52, a heat dissipation fin 54 connecting between the condensation tube 53 and another condensation tube 53 ′, And a blowing fan 55 for blowing wind to the condensation tube 53 and the heat dissipation fins 54. In the present embodiment, 74 condensation tubes 53 are provided.

 In this case, as shown in FIG. 5, the condensation tube 53 is flat and thus, the heat dissipation fin 54 may be coupled between the condensation tube 53 and the other condensation tube 53 ′ with a large contact area. Therefore, when the wind is passed between the condensation tube 53 and the heat dissipation fin 54, it is possible to effectively absorb the heat energy from the water vapor passing through the condensation tube 53, the water vapor passing through the condensation tube 53 condenses waste water and waste gas To be separated.

The waste container 60 is a waste water and waste gas separated from the water vapor passing through the dehumidifying unit 50, and the double waste water is stored in the waste container 60. The recovery container 60 is provided with a drain pipe 61 and a valve (not shown) to drain the stored wastewater.
Inside the recovery container 60, a manganese dioxide catalyst 65 is embedded as shown in FIG. The manganese dioxide catalyst 65 generates oxygen in the condensed and stored wastewater to remove odor components in the wastewater.

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The activated carbon filter 70 is a filter in which activated carbon having a large number of pores formed therein is adsorbed and removed odor components from the waste gas passing through.

The waste gas conveying unit 80 is for transporting some of the waste gas via the recovery container 60 to the activated carbon filter 70 and the rest to the stirring tank 10. As shown in FIG. 6, the waste gas pumping unit 80 is connected to a collecting container 60, and is provided by a suction fan 81 for sucking waste gas from the collecting container 60 and a suction fan 81. And a first pressure pipe 82 for pumping some of the waste gas sucked into the activated carbon filter 70, and a second pressure pipe 83 for pumping the remaining waste gas into the stirring tank 10. At this time, the waste gas conveying unit 80 is formed with a connector (80a) connected to the recovery container 60, the waste gas is sucked into the suction fan 81 through the connector (80a).

Here, the suction fan 81 forms a negative pressure inside the recovery container 60, whereby water vapor generated in the stirring tank 10 is separated into waste water and waste gas while passing through the condensation tube 53 of the dehumidifying unit 50. It can be introduced into the recovery container 60, and the water vapor can be transferred by the negative pressure can minimize the occurrence of noise.

At this time, the size of the first pressure pipe (82) for supplying the waste gas to the activated carbon filter 70 is smaller than the size of the second pressure pipe (83) for supplying the waste gas to the stirring tank 10, about 30% of the waste gas It is discharged to the outside via the activated carbon filter 70, and the remaining 70% of the waste gas is circulated to the stirring tank 10 to remove the odor by the OH radicals generated in the OH radical generator 40.

The conveying crushing screw 90 is crushed while transporting the food waste reduced in volume by drying in the stirring tank 10. The transfer crushing screw 90, as shown in Figure 7, the inlet side (91a) is connected to the lower side of the stirring tank 10 and the outlet body (91b) side of the tubular body (91), and Screw 92 is installed in the tubular body 91, and the drive unit 93 is installed in the tubular body 91 for rotating the screw 92. By this configuration, when food waste is sufficiently dried in the stirring tank 10, the driving unit 93 rotates the screw 92 to crush the food waste flowing into the inlet side 91a while crushing it, and then the outlet side ( Discharge through 91b).

Discharge box 100 is accommodated by the conveyed shredding screw 90, the result of the processing. At this time, when a weight sensor (not shown) is installed in the lower part of the discharge bin 100, when sufficient processing results are accumulated in the discharge bin 100, the weight sensor generates a signal corresponding to the discharge bin 100, which is filled. Can warn you.

As described above, according to the present invention, while the heater unit 30 heats the stirring tank 10, the food waste introduced into the stirring tank 10 is heated evenly while being stirred by the stirrer 20, in this process. Odor-containing water vapor is generated. At this time, the OH radical generating unit 40 supplies OH radicals to the stirring tank 10 while the food waste is being agitated to remove odor components contained in the water vapor.

Thereafter, the water vapor passes through the dehumidifying part 50 by the negative pressure of the suction fan 81 of the waste gas conveying part 80. At this time, the water vapor is condensed while passing through the condensation tube 53 and separated into waste water and waste gas. After the flow to the recovery container (60).
The waste water is then discharged to the outside through the drain pipe 61 after the odor is removed by the manganese dioxide catalyst in the recovery container 60, some of the waste gas odor while passing through the activated carbon filter 70 by the waste gas conveying unit 80 Is removed and exhausted to the outside, the remainder is turned to the stirring tank 10 to remove the odor by the OH radicals supplied from the OH radical generating unit 40. As such, by repeating the above-described series of cycles, the odor component contained in the water vapor generated during the food waste treatment process can be completely removed.

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While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10 ... stirring tank 11 ... inlet
20 ... Agitator 21 ... Shaft
22a, 22b ... Swinging Blades 23a, 23b ... Separation Blades
30 ... heater 31 ... oil storage body
32 ... heater 40 ... OH radical generator
50 ... Dehumidifier 51 ... First header
52 ... second header 53 ... condensation tube
54 ... Heatsink fins 55 ... Blower fan
60 ... Recovery container 61 ... Drain pipe
62 ... valves 65 ... manganese dioxide catalyst
70 ... activated carbon filter 80 ... waste gas conveying unit
81 ... suction fan 82 ... first pressure pipe
83 ... 2nd pressure pipe 90 ... conveying crushing screw
91 ... cylindrical body 92 ... screw
93 ... drive section 100 ... discharge tray

Claims (7)

Stirring tank 10 is installed food waste as a stirrer 20 is installed therein;
A heater unit 30 for heating the inside of the stirring tank 10;
An OH radical generator 40 installed in the stirring tank 10 to generate OH radicals;
A dehumidifying unit (50) for condensing water vapor in which odors are partially removed by the OH radicals and separating the waste water and waste gas;
Recovery bin 60 for recovering the waste water and waste gas separated from the dehumidifying unit 50;
An activated carbon filter 70 having activated carbon for removing odor from the waste gas;
A waste gas conveying unit (80) for conveying some of the waste gas via the recovery container (60) to the activated carbon filter (70) and for conveying the rest to the OH radical generating unit (40); And
And a conveying crushing screw (90) for crushing while conveying the food waste having a reduced volume by drying in the stirring tank (10). According to claim 1, The stirrer 20,
The food and drink by having the shaft portion 21 rotates through the stirring tank 10 in the horizontal direction, and the inclined surfaces 22a 'and 22b' facing both sides as being installed in the radial direction from the shaft portion 21. A horizontal plane is provided radially on the shaft portion 21 between the pair of swinging blades 22a and 22b for stirring the waste and turning to both sides and the pair of swinging blades 22a and 22b. (23a ') (23b') is formed, the food waste treatment apparatus, characterized in that consisting of the separation blade (23a) (23b) for separating the food waste from the inner peripheral surface of the stirring tank (10). The method of claim 1, wherein the heater unit 30,
An oil storage body 31 installed at the lower side of the stirring tank 10 and containing oil L therein, and a heater 32 built in the oil storage body 31 to heat the oil L. Food waste treatment apparatus comprising a. According to claim 1, The dehumidifying unit 50,
A first header 51 connected to the stirring tank 10, a second header 52 connected to the recovery container 60, and a connection between the first and second headers 51 and 52. Blowing wind to the plurality of condensation tube 53, the heat dissipation fin 54 to connect between the condensation tube 53 and the other condensation tube 53 ', and the plurality of condensation tube 53 and the heat dissipation fin 54 Food waste treatment apparatus comprising a blowing fan (55). The method of claim 1,
Food waste treatment apparatus, characterized in that the recovery container 60 is a manganese dioxide catalyst (65) is built. According to claim 1, wherein the waste gas conveying unit 80,
A suction fan (81) connected to the recovery container (60), a first pressure pipe (82) for pumping some of the waste gas sucked by the suction fan (81) to the activated carbon filter (70), and the rest Food waste treatment apparatus comprising a second pressure pipe (83) for pumping the waste gas into the stirring tank (10). The method of claim 1, wherein the transfer crushing screw 90,
An inlet side (91a) is connected to the lower side of the stirring tank (10) and the outlet body (91b) side is directed to the upper body 91, the screw 92 is installed inside the cylindrical body (91), Food waste treatment apparatus characterized in that it comprises a drive unit (93) installed in the tubular body (91) for rotating the screw (92).

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