KR19980066831A - Food Waste Disposal Device - Google Patents

Abstract

The present invention relates to a food waste processing apparatus used to treat various food wastes including residues, and to treat them as ingredients that can be recycled.

The food waste treating apparatus of the present invention includes a charging hopper into which food waste is charged, a crusher installed at a lower portion of the hopper to crush food waste into a dough of a predetermined particle size, a storage tank in which the crushed food waste is stored, and food in the storage tank. A conveying apparatus for transferring the waste into the drying apparatus, a drying apparatus for maintaining food at a high temperature by the hot air of the burner, and drying of the food waste introduced into the drying apparatus, and rotatably coaxially formed inside the drying apparatus. Stirring and conveying device formed on the outer circumferential surface of the inner cylinder to be installed inside, one side of the inner cylinder is installed on the opposite end side of the deodorizing device and deodorizing device as a high temperature portion to remove the odor component in the exhaust gas flowing into the inner cylinder It is a structure consisting of an exhaust gas discharge device.

The apparatus of the present invention has the advantage of treating the food waste to be recycled as a raw material of fertilizer or feed within a short time, as well as the odor is completely removed in this process.

Description

Food Waste Disposal Device

1 is a process chart for the food treatment process using the apparatus of the present invention.

Figure 2 is a partially cutaway front view showing the whole structure of one embodiment of the device of the present invention.

3 is a detailed cross-sectional view of the deodorizer of the FIG. 2 device.

* Description of the symbols for the main parts of the drawings *

1: Hopper 2: Grinder

3: storage tank 4: drying device

5: inclined feeder 6: inner cylinder

7: Deodorizer 8: Exhaust system

9: External cylinder 11: Dry burner

12: duct 13: outlet

16: Feed Screw 17: Stirring Pin

18: deodorization burner 19: red heat cylinder

20: gas inlet 22: air inlet

23: damper

The present invention relates to a treatment apparatus for a variety of food waste, such as residues, etc. More specifically, to minimize the water content and volume by grinding and drying the food waste in a short time, the treated food waste is utilized as a raw material of various feeds and fertilizers It relates to a food waste disposal apparatus.

In recent years, with the expansion of industrial scale and the improvement of living standards, the emission of industrial wastes and other industrial wastes has increased, and the development of a new type of processing device for the treatment of such wastes or wastes has been actively developed. Is going on.

Particularly, among the household wastes, the social garbage is emerging as a serious form these days, and the food waste generated every day at the group meal halls, including homes and restaurants, can be regarded as the next to other kinds of garbage. As it has such characteristics, there are many difficulties in processing.

In other words, the food waste usually contains water and emits a peculiar odor. In addition, there is a specific fact that odor is generated when the food waste is easily decayed over time and is not immediately processed.

Among the food waste disposal methods, the most conventional treatment method is a landfill in a landfill site. In the disposal method of landfill food wastes, the moisture contained in the food waste after landfill is accumulated. Leaching not only pollutes the soil, but also the leachate flows into rivers, rivers and even water sources, acting as a secondary environmental pollutant. Recently, there has been a growing tendency to regulate the disposal of food waste by landfill. It is true.

Therefore, in recent years, food wastes are processed by reclaiming landfills, and a separate processing device is used to remove the volume and moisture of food wastes and to dispose of them or to recycle processed food wastes as feedstock or fertilizer of livestock. The development of a food processing apparatus to enable this is being actively progressed.

Currently, there are two types of food waste disposal methods, incineration by heating and fermentation using microorganisms. Among them, the incineration treatment apparatus currently developed is a form of directly heating food waste. When the water content of the food waste is high, its disposal cost is high and it is not widely used yet due to secondary pollution caused by smoke and odor generated during incineration.

Next, the fermentation food processing apparatus is currently developed in various forms of products are shipped on the market, which is a microorganism having a decomposing property for the food waste is charged with the food waste inside the reaction tank and the temperature, humidity and By controlling the atmosphere, such as nutritional state, the food waste is decomposed so that the volume of the food waste is reduced.

However, such a conventional fermentation food processing apparatus takes a processing time of more than 24 hours, the processing speed is slow, and there is a problem that a bad smell occurs during the treatment, and also the food of our country has a spicy and salty characteristics inside the reactor It is pointed out that the processing yield is lowered because the microorganisms that have been injected may die.

Accordingly, the present invention is to solve all the disadvantages and problems that are pointed out in the conventional incineration and fermentation food waste, primarily by crushing the food waste and drying the crushed food waste in the rolling mill and It is an object of the present invention to provide a food waste disposal apparatus for deodorization.

It is another object of the present invention to provide a food processing apparatus that allows food wastes discharged from a group meal hall, such as a school, including a restaurant, the military, and a corporation, to be recycled as raw materials of various feeds or fertilizers in a short time. .

In the food treatment process using the food waste treatment apparatus of the present invention, the food waste is first pulverized to a slurry or dough state and transferred to a storage tank, and then the crushed food waste in the storage tank is transferred to a drying apparatus by a burner. While the drying is performed by hot air, the degree of occurrence in the drying process is a series of processes to remove the odor by allowing the exhaust gas containing the odor component to be removed by passing through the high temperature portion.

The object of the present invention is a charging hopper into which food waste is charged, a pulverizer disposed below the hopper to primarily crush food waste into a dough or slurry state, a storage tank for storing pulverized food, and pulverized food in the storage tank. In the transfer water for transporting the waste into the drying device, the drying device to dry the food waste to be stored in the high temperature by the hot air of the burner, and to be installed rotatably coaxially inside the drying device On the opposite end side of the deodorizing device and the deodorizing device as a stirring and conveying device formed on the outer peripheral surface of the inner cylinder to be installed inside one side of the inner cylinder to remove odor components in the exhaust gas flowing into the inner cylinder. It is achieved by a structure consisting of an exhaust gas discharge device installed.

At this time, the drying device is composed of an outer cylinder consisting of a cylindrical body in a horizontal state in which both sides are blocked, and an inner cylinder formed through the coaxially penetrating inside the outer cylinder and rotatably installed, one side of the inner cylinder on the outer peripheral surface of the inner cylinder. A stirring pin is formed to allow stirring of the food screw and the food screw to move the food waste charged into the discharge port on the opposite side.

Matters relating to the above object and technical configuration of the present invention, and the effects thereof will be clearly understood by the following detailed description with reference to the drawings showing the preferred embodiment structure of the device of the present invention.

1 is a process diagram showing the step of processing food waste using the apparatus of the present invention step by step, Figure 2 is a partial cutaway front view showing the overall structure of the food waste processing apparatus of the present invention, Figure 3 is a deodorizing device of FIG. Detailed cross-sectional view showing the structure of.

As shown in Figure 1, the process of processing food waste by using the apparatus of the present invention, first charging the food waste into the drying furnace to perform the grinding operation in the previous step to dry it to be stored in the storage tank, The food waste can be dried by transferring it from the reservoir to the inside of the drying apparatus, and the odor in the exhaust gas is removed during the drying process. The waste is discharged.

Looking at the structure of the food processing apparatus of the present invention performing a series of processes as described above based on FIG.

As shown, the food waste treatment apparatus of the present invention, the hopper (1) and the crusher (2) for crushing the food waste supplied from the hopper 1 to a predetermined particle size range, and a storage tank for storing the crushed food waste ( 3), an inclined feeder 5 for transferring the crushed food waste in the storage tank 3 to the drying apparatus 4, and a transverse cylindrical body in which both sides are closed to dry the food waste therein. The drying device 4, the inner cylinder 6 installed coaxially and rotatably inside the drying device 4, and one side of the inner cylinder 6 are removed to remove the odor component contained in the exhaust gas. It consists of a deodorizing device (7) and a gas exhaust device (8) provided on the other end of the inner cylinder (6).

The hopper 1 into which the food waste to be treated is charged, it is preferable to install a cover (not shown) to prevent the smell from spreading to the outside.

The grinder 2 which grinds the food waste supplied from the hopper 1 to a certain particle size is configured to grind not only residues, rice cakes, meats and vegetables, but also various bones, seafoods and wooden chopsticks as solids.

Next, the storage tank 3 in which the food waste FW pulverized in the crusher 2 is stored is formed in a closed type, and its bottom surface is preferably configured as an inclined surface as shown.

The inclined conveying apparatus 5 installed inclined between the lower part of the storage tank 3 and the drying apparatus 4 has a rotary screw 5a installed therein, so that the food waste FW stored in the storage tank 3 is stored. ) Is transferred to the upper drying apparatus 4, wherein a motor (not shown) as a driving source for driving the rotating screw 5a is selectively installed on one side of the upper end or the lower end of the inclined feeder 5. Could be.

Next, the drying apparatus 4 is constituted by a metal outer cylinder 9 made of a cylindrical body in a horizontal state and supported by a lower support frame 10, and inside the outer cylinder at one bottom surface of the outer cylinder 9. Drying burner 11 for supplying the hot air to the furnace is mounted so that the hot air generated from the burner 11 is guided to the duct 12 to flow into the interior of the outer cylinder 9, while the other side is dried An outlet 13 for discharging the completed food waste FW is formed.

On the other hand, the inner cylinder 9 of the drying device 4 is installed coaxially with the outer cylinder 9 of a smaller diameter than the outer cylinder 9, the inner cylinder 6 The end portions of both sides of the outer cylinder body 9 protrude outwards, and the inner cylinder body 6 is rotatably installed about the horizontal center axis.

The horizontal rotation of the inner cylinder 6 is performed by a rotation driving force transmitted from the motor 14 installed on the support frame 10 of the drying apparatus 4, such a motor 14 and the inner cylinder ( Power transmission between the 6) is made through a power transmission means 15, such as a belt or a chain provided between the rotary shaft pulley of the motor 14 and one protruding end of the inner cylinder (6).

Next, on the outer circumferential surface of the inner cylinder (6) installed inside the outer cylinder (9), a food screw (FW) for transporting the food waste (FW) to the outlet 13 over the entire section and the food waste being transported A stirring pin 17 is provided to improve the drying efficiency by performing stirring on the FW.

Subsequently, the configuration of the deodorizer 7 with reference to FIG. 3 will be described in detail.

As shown, the deodorizing device 7 is installed outside one end of the inner cylinder 6, the deodorizing burner 18 for generating a flame into the inner cylinder 6, and inside the inner cylinder 6 It is provided in a plurality of places on the inner cylinder 6 on the outer cylindrical cylinder 19 and the cylindrical cylindrical body 19 and the outer cylindrical cylinder 19 to maintain a high temperature state by the deodorizing burner 18, the outer cylinder 9 and the inner cylinder ( 6) is composed of a gas inlet 20 to allow the discharge gas between the inner cylinder 6 into the interior. At this time, the glowing cylinder 19 is fixed to the inner cylinder 6 by the fixing bracket 21 is configured to rotate with the inner cylinder 6 during the rotation of the inner cylinder (6).

The inner cylinder, the outer cylinder (6) (9) and the red heat cylinder (20), including the transfer screw (16) and the stirring pin (17) is a material having excellent corrosion resistance as the high temperature and wet atmosphere, that is, exposed to the corrosion atmosphere For example, it is preferable to comprise a stainless material.

Next, a gas discharge device for discharging the exhaust gas flowing inside the inner cylinder 6 to the outside of the drying apparatus 4 is installed on the opposite end of the inner cylinder 6 in which the deodorizing burner 18 is installed. , For example, an exhaust fan.

For smooth operation of the exhaust device 8 and proper flow of air inside the drying device 4, the outside air should be introduced into the drying device 4, as shown in FIG. 2. An outer air inlet hole 22 is formed on an outer circumferential surface of one end portion of the inner cylinder 6, and a damper 23 is installed outside the air inlet hole 22 so as to have a hole size of the air inlet hole 22. It is configured to make adjustments. At this time, the opening degree control of the air inlet hole 22 is achieved by changing the installation position of the damper 23 in which the through hole 23a is formed with respect to the air inlet hole 22.

In the figure, reference numeral 23b is a long hole formed in both ends of the damper 23, and 23c is a damper fastening bolt.

Looking at the process of processing the food waste using the food waste treatment apparatus of the present invention having the structure as described above in detail as follows.

First, when the crusher 2 is driven while the food waste to be processed is charged into the charging hopper 1, the food waste is crushed to a predetermined particle size in the course of passing through the crusher 2, and the slurry or dough is then changed according to its moisture content. It is crushed in a state to be collected into the reservoir (3).

In this case, the type of food waste to be crushed includes all kinds of food waste including residues, vegetables, rice cakes, seafood, bones, etc., as well as organic wastes discharged from various processed food factories.

However, in the case of metallic cutlery, it is possible to damage the grinding blade of the grinder, so it is necessary to remove the metallic cutlery before loading the food waste into the hopper 1. .

Next, the food waste FW collected in the storage tank 2 is transferred from the storage tank 2 to the interior of the drying apparatus 4 by the inclined transfer device 5. That is, the food waste FW which is moved upward by the rotation of the rotating screw 5a in the inclined feeder 5 is formed on the outer cylinder 9 of the drying apparatus 4 (not shown). It is dropped through the bottom of the outer cylinder (9) inside.

With the charging of the food waste (FW) into the drying apparatus 4 as described above, the motor 14 for driving the inner cylinder 6 is operated to perform horizontal rotation of the inner cylinder 6 and the drying burner ( 11) and the deodorizing burner 18 operate and the exhaust device 8 installed at the other end of the inner cylinder 6 is operated so that the inside of the outer cylinder 9 is kept at a high temperature while the inner cylinder 6 is operated. Due to the rotation of the transfer screw 16 and the stirring action of the stirring pin 17, the food waste FW located on the bottom of the outer cylinder 9 moves to the outlet 13 on the right side while stirring and drying Proceed.

The flow of hot air by the drying burner 11 in the drying apparatus 4 of the present invention is generated from the drying burner 11 installed on one side of the bottom surface of the outer cylinder 9 as shown in FIG. The bottom surface of the outer cylinder 9 is introduced into the duct 12 formed along the longitudinal direction of the bottom of the outer cylinder 9 and flows into the outlet 12 forming portion side of the outer cylinder 9. The preheated food waste FW, which is primarily heated and accumulated on the bottom surface of the outer cylinder 9, is subsequently heated, and then the hot air introduced into the outlet 13 forming side of the outer cylinder 9 is disposed of as food waste ( Exhaust system which flows to the left side toward the inlet side of FW) and flows into the inner cylinder 13 through the gas inlet 20 of the inner cylinder 6 and is formed at the right end of the inner cylinder 6. You will be headed to (8).

Accordingly, the food waste FW, which is dried while moving to the right on the bottom surface of the outer cylinder 9, is removed from the drying burner 11 only in a state of avoiding direct contact with the flame generated from the drying burner 11. Drying is made by hot air.

On the other hand, the distance between the outer end of the conveying screw 16 and the inner surface of the outer cylinder 9 for conveying the food waste (FW) is maintained, for example about 5mm by smooth rotation of the inner cylinder 6 and It is desirable to ensure that the proper transport of the food waste (FW) by the transfer screw 16 together.

Similarly, the stirring pin 17 also has a length of the stirring pin 17 so that the gap between the outer end thereof and the inner surface of the outer cylinder 9 is maintained as narrow as possible so that agitation to the food waste FW can be made as much as possible. Need to be adjusted.

In addition, the heating temperature by the drying burner 11 and the rotation speed of the inner cylinder 6 (that is, the rotation speed of the conveying screw) correspond to the type of food waste FW introduced into the drying apparatus 4. It is set differently depending on the type of food waste, which may be performed by automatic operation to be automatically driven by a pre-stored value according to the type of food waste, and in some cases, may be manually adjusted.

Next, after drying the food waste (FW) while flowing the space between the outer cylinder 9 and the inner cylinder 6, the inner cylinder 6 through the gas inlet 20 of the inner cylinder 6 Exhaust gas introduced into the interior contains odors or odors generated from food waste (FW), and when it is discharged to the outside of the drying apparatus 4, another pollution is generated. For deodorizing device 7 is provided inside the gas inlet 20 forming part of the inner cylinder (6).

That is, in the apparatus of the present invention, the deodorizing device 7 is installed inside the gas inlet 20 of the inner cylinder 6 so that the odor component contained in the exhaust gas can be removed. (20) Combustion removal of odor components by contacting the exhaust gas introduced through the gas inlet 20 on the outer circumferential surface of the glowing cylinder 19 installed inside and maintaining the heated state by the deodorizing burner 18. To make it happen.

In other words, about 150 ° C. is maintained around the glowing cylinder 19 inside the inner cylinder 6, so that the exhaust gas flowing into the inner cylinder 6 passes around the glowing cylinder 19. In the process, the odor component is removed and discharged to the outside of the drying apparatus 4 through the exhaust apparatus 8.

On the other hand, in the present invention, an air inlet hole 22 is formed on the inner cylinder 6 to allow fresh external air to flow into the drying apparatus 4, and the air inlet hole 22 is formed by the damper 23. Since the opening degree can be adjusted, the airflow inside the drying apparatus 4 is properly made, and the smooth operation of the exhaust apparatus 8 is possible.

Food waste, which has been dried in the drying apparatus 4 and transferred to the outlet 12, is discharged to the outside of the drying apparatus 4 through the outlet 13 by gravity.

The food waste processed through the food waste treatment apparatus of the present invention as described above is a particle or powder state in which the moisture and odor components contained before the treatment are completely removed, and the volume thereof is drastically reduced so that raw materials of various feeds are themselves. And it can be recycled as a raw material of fertilizer.

And, the exhaust gas coming out through the exhaust device (8) of the food waste treatment apparatus of the present invention is burned and removed in the odor component in the exhaust gas in the course of passing through the deodorizer installed on the inner cylinder (6) Accordingly, there is an advantage that the problems caused by the generation of odors pointed out in the conventional incineration and fermentation food processing apparatus is solved.

In addition, the food waste treatment apparatus of the present invention takes about 1 hour and a half based on 50Kg, although the time required from the input of the food waste to the final treatment is somewhat different depending on the type. According to the conventional fermentation treatment device has a significantly improved advantage in terms of processing speed.

Claims (4)

The hopper 1, the crusher 2 for crushing the food waste supplied from the hopper 4 to a certain particle size, the storage tank 3 in which the crushed food waste is stored, and the crushed food waste in the storage tank 3 An inclination transfer device 5 for transferring the inside of the drying device 4, a drying device 4 composed of a transverse cylindrical body with both sides closed and drying food waste therein, and a drying device 4 Inner cylinder (6) which is installed rotatably coaxially in the inside of), and deodorizing device (7) and inner cylinder which are installed on one side of inner cylinder (6) to remove odor component in exhaust gas Food waste processing apparatus, characterized in that consisting of an exhaust device (8) installed on the other end of the. According to claim 1, wherein the drying device (4) consists of a cylindrical outer cylinder (9) and the inner cylinder (6) coaxially installed therein, wherein the outer cylinder (9) is a duct (outside the bottom one side) 12 is provided with a drying burner 11 is guided to supply the hot air into the outer cylinder (9) while the other side is provided with a food outlet, characterized in that the outlet 13 for discharging the food waste is completed Waste disposal device. The inner cylinder (6) according to claim 1 or 2, characterized in that the inner cylinder (6) has a transport screw (16) for transporting food waste to the outlet (13) side and a plurality of stirring pins for stirring the food waste during transport ( 17) food waste treatment apparatus, characterized in that formed. The deodorizing apparatus (7) according to claim 1 or 2, wherein the deodorizing device (7) is provided outside one end of the inner cylinder (6) and has a deodorizing burner (18) for generating a flame into the inner cylinder (6), and the inner cylinder ( 6) It is formed in a number of places on the inner cylinder (6) and the inside of the outer cylinder (9) outside the red heat cylinder (19) and the inside of the outer cylinder (9) inside the red heat cylinder (19) which is maintained inside and maintains a high temperature state by the deodorizing burner (18). Food waste treatment apparatus, characterized in that consisting of the gas inlet 20 to allow the discharge gas between the cylinder (6) to be introduced into the inner cylinder (6).