KR101892975B1 - disposer for mass treatment of organic waste - Google Patents

Abstract

The present invention provides a method for treating organic wastes, which is a mixture of food wastes and sewage sludge, economically and efficiently.

Description

{Disposer for mass treatment of organic waste}

The present invention relates to an extinction device for treating organic wastes.

Recently, the amount of organic wastes including food waste, sewage sludge and sewage sludge has been increasing, and the regulations on the treatment methods are changing every year. (2005), food waste (2013), waste water (2013), and wastewater sludge (2016) have been added since the ban on the landfill of food wastes in 2005 In the past, there have been a number of ways to dispose of food waste in landfills, incineration, marine dumping, and the recycling of resources. However, the prohibition of direct landfilling of food waste (2005 ) And marine dumping is prohibited (2013), various methods have been tried to replace it. Among them, incineration is inconvenient due to incomplete combustion due to high water content in Korea due to the characteristics of food culture and the emission of various harmful substances Reclamation includes feed conversion, composting, and energy conversion. Feed conversion is not easy due to irregular production, various foreign substances, and the occurrence of livestock diseases. All. Composting is a state in which the consumption of compost products manufactured due to soil accumulation of high salt, absorption failure of other components, and lack of nutrients of crops is not active. Finally, energy conversion is faced with many difficulties due to the content and quality of biogas due to food waste. On the other hand, conventional techniques of sewage sludge disposal include drying, solidification, incineration, melting, carbonization, composting, fueling, landfill, and earthworm rearing, but the moisture after dehydration removes moisture due to a high water content of 83% There is an urgent need for an effective water reducing technology that is economical because of excessive energy cost, bad odor and complicated facilities. Therefore, it is very important how to treat organic wastes such as food waste and sewage sludge, while ensuring the economy is environmentally friendly. Technically, dehydration, drying, sufficient air supply and extinction technologies of organic wastes It is a key point. Korean Patent Laid-Open Publication No. 2005-0024470 discloses a food waste disposal apparatus having a screw rotation stirring function.

However, in the case of the above-mentioned prior art, first, air is supplied to the lower part of the processing apparatus at four places, but at the time of a large capacity treatment, there is no gap due to the consolidation due to the load of the raw material, . Second, the consolidation of the raw materials and the phenomenon of the stones cause frequent failure of the auxiliary stirring blades.

It is an object of the present invention to solve the above problems and provide a method for efficiently and economically treating a large amount of organic waste. However, these problems are exemplary and do not limit the scope of the present invention.

 According to one aspect of the present invention, there is provided a display device comprising: a main body configured by upper, middle, and lower portions; An automatic raw material supply unit for supplying an organic waste material transferred from the outside to the inside of the main body; A hollow tubular shaft installed in a vertical direction inside the body to be rotationally driven; a shaft formed on a surface of the shaft to communicate with the shaft and having a plurality of air injection holes formed on a lower surface thereof to supply air downward; And a driving motor connected to one end of the shaft for driving the shaft to rotate; a first air supply unit for supplying air into the shaft; A second air supply unit for supplying air to the lower portion through an air injection port formed on a side surface of the main body; And an exhaust unit installed on the main body, the exhaust unit including a pump for sucking steam and gas generated in the main body, and a gas outlet for discharging the steam and gas to the outside.

According to one embodiment of the present invention as described above, it is possible to realize an effect of massively processing organic wastes that can efficiently and economically treat organic wastes. Of course, the scope of the present invention is not limited by these effects.

1 is a schematic view showing a schematic configuration of an extinction device for treating organic waste according to an embodiment of the present invention.
FIG. 2 is a photograph showing a front view of an extinction apparatus for treating organic waste according to an embodiment of the present invention.
FIG. 3 is a photograph showing a rear view of an extinction apparatus for treating organic waste according to an embodiment of the present invention.

Definition of Terms:

The term " organic waste " as used herein refers to wastes mainly composed of organic matter, among general and industrial wastes. Agricultural byproducts such as rice straw and barley straw, animal manure, human milk, bark, industrial wastewater sludge, food industry waste, and living sewage sludge. Organic waste is used as it is in the production of crops, and various obstacles may occur, and it is used by composting, composting and fermentation treatment.

The term " sewage sludge "as used herein refers to sludge that is generated in each step of sewage treatment and has a higher concentration of organic material than that of the recycled sludge. In a sewage treatment process such as an activated sludge process, raw sludge of the first sedimentation tank and waste sludge in the final sedimentation tank occur.

DETAILED DESCRIPTION OF THE INVENTION [

 According to one aspect of the present invention, there is provided a display device comprising: a main body configured by upper, middle, and lower portions; An automatic raw material supply unit for supplying an organic waste material transferred from the outside to the inside of the main body; A hollow tubular shaft installed in a vertical direction inside the body to be rotationally driven; a shaft formed on a surface of the shaft to communicate with the shaft and having a plurality of air injection holes formed on a lower surface thereof to supply air downward; And a driving motor connected to one end of the shaft for driving the shaft to rotate; a first air supply unit for supplying air into the shaft; A second air supply unit for supplying air to the lower portion through an air injection port formed on a side surface of the main body; And an exhaust unit installed on the main body, the exhaust unit including a pump for sucking steam and gas generated in the main body, and a gas outlet for discharging the steam and gas to the outside.

Wherein the upper portion has a conical shape, the middle portion has a cylindrical shape, the lower portion has an inverted conical shape, and the diameter of the uppermost portion of the lower portion is the diameter of the lowermost end of the center portion The middle portion and the bottom portion are connected to each other by a ring-shaped zipper. The upper portion of the bio-chip inlet may be formed with a micro-organism inoculated therein, and the outlet may be formed at the lower portion thereof.

In the extinction device for the organic waste treatment, the automatic raw material supply portion may include: a hopper into which the organic waste material flows; A feed screw for horizontally feeding the raw material from the bottom of the main body to the inside thereof; And a second driving motor for driving the conveying screw.

In the extinction device for organic wastes, the supply of the raw material through the automatic raw material supply unit is automatically controlled by a temperature sensor and a moisture sensor, which are additionally provided in the main body, And the first air supply unit may further include an inner cylinder for spatially separating the organic waste from the screw leaf sheet.

The air supplied from the second air supply unit to the main body through the air injection port is injected downward and the air supplied through the first air supply unit is supplied to the main air supply unit Through the air blowing hole formed on the lower surface of the screw leaf piece communicated with the shaft upward through the shaft to form a gap in the organic waste being fermented, thereby promoting the fermentation of the aerobic degrading bacteria.

The organic waste raw material may be sewage sludge, manure, food waste or a mixture thereof, and may be pre-treated with dehydration.

In the extinction device for treating organic wastes, the first air supply unit and the second air supply unit can receive air through one blower, and selectively receive air through respective separate blowers.

Wherein the upper portion has a conical shape, the middle portion has a cylindrical shape, the lower portion has an inverted conical shape, and the diameter of the uppermost portion of the lower portion is the diameter of the lowermost end of the center portion The center portion and the lower portion are connected to each other by a ring-shaped zipper. The upper portion of the bio-chip inlet may be filled with microorganisms, and the lower portion may be formed with a raw material outlet.

Conventional sewage sludge treatment techniques are used for drying, solidification, incineration, melting, carbonization, composting, fueling, landfilling, and earthworm rearing. However, since the water content after dehydration is 83% There is an urgent need for effective water reducing technology that is economical because of excessive energy cost, excessive process odor and complex facilities. Considering the treatment of domestic organic wastes before and after the prohibition of marine dumping, it is very important to treat the organic wastes, such as food waste and sewage sludge, while ensuring economic efficiency. Is the key to dehydrating and drying food waste. Accordingly, the inventors of the present invention found that the food waste in Korea has a high carbohydrate content, a high moisture content, and a high salt content, while the sewage sludge has a low carbohydrate content and a high protein content. Each raw material has an unbalanced C / N ratio, Recognizing and solving the problems that it is not easy to recycle as well as landfill and incineration due to high salt concentration, viscosity and density problem, irregular generation amount, various foreign substances, feed conversion and composting, The organic waste can be efficiently transported from the outside to the lower portion of the extinction unit, and also, in the air supply method, the air passing through the tubular shaft is sprayed into the lower space through the air injection hole of the double leaf sheet, The air supply method of spraying into the generated gap by varying the width of the lower structure is used in combination Thereby increasing the aerobic state in the extinction unit, thereby more efficiently extinguishing the organic waste.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are described in order to more fully explain the present invention to those skilled in the art, and the following embodiments may be modified into various other forms, It is not limited to the embodiment. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art. In the drawings, the thickness and size of each layer are exaggerated for convenience and clarity of explanation.

It is to be understood that throughout the specification, when an element such as a film, region or substrate is referred to as being "on", "connected to", "laminated" or "coupled to" another element, It will be appreciated that elements may be directly "on", "connected", "laminated" or "coupled" to another element, or there may be other elements intervening therebetween. On the other hand, when one element is referred to as being "directly on", "directly connected", or "directly coupled" to another element, it is interpreted that there are no other components intervening therebetween do. A uniform code refers to a uniform element. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, components, regions, layers and / or portions, these members, components, regions, layers and / It is obvious that no. These terms are only used to distinguish one member, component, region, layer or section from another region, layer or section. Thus, a first member, component, region, layer or section described below may refer to a second member, component, region, layer or section without departing from the teachings of the present invention.

Also, relative terms such as "top" or "above" and "under" or "below" can be used herein to describe the relationship of certain elements to other elements as illustrated in the Figures. Relative terms are intended to include different orientations of the device in addition to those depicted in the Figures. For example, in the figures the elements are turned over so that the elements depicted as being on the top surface of the other elements are oriented on the bottom surface of the other elements. Thus, the example "top" may include both "under" and "top" directions depending on the particular orientation of the figure. If the elements are oriented in different directions (rotated 90 degrees with respect to the other direction), the relative descriptions used herein can be interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing ideal embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention should not be construed as limited to the particular shapes of the regions shown herein, but should include, for example, changes in shape resulting from manufacturing.

1 is a schematic view showing a schematic configuration of an extinction device 10 for treating organic waste according to an embodiment of the present invention. Conventionally, an organic waste mixed with food waste and sewage sludge at an appropriate ratio is introduced into the hopper, and the organic waste is injected into the annihilation device according to the operation of the screw pump connected to the hopper. Therefore, The waste water disinfector 10 has a transfer screw 22 disposed at the lower part thereof. The organic waste can be directly transferred from the outside to the interior of the organic waste disposal apparatus 10, The organic waste disposal apparatus 10 according to the present invention is different from the conventional system in that the first air supply unit 30 and the second air supply unit 40 are installed in a single- The effect of disposing of organic waste was improved.

As shown in the drawing, a cylindrical body is formed and the main body is divided into a main body 11, a main body 12, and a main body 13. The main body 11, (13) is formed in a funnel shape to remove steam generated in the main body and to discharge gas quickly. The lower portion 13 of the main body 12 has a slightly larger width than the middle portion 12 of the main body 12. The lower portion 13 of the main body 12 is formed between the main body lower portion 13 and the main body portion 12, To form voids. The second air supply unit 40 will be described in detail in order to increase the aerobic state between the stirring and fermentation processes in the organic waste disposal apparatus 10. The inner wall of the main body is made of a stainless steel material which can withstand various corrosive gases generated from mixed raw materials of salt and organic waste contained in food wastes of Korea.

The main body upper portion 11 of the organic waste disposal apparatus 10 has a funnel shape in order to improve the dust collecting effect and efficiently remove the steam 51. A first drive motor 37 connected to one end of a shaft 36 for fermentation process for rotationally driving the shaft 36 is provided at the upper part of the organic waste disposal device 10, And a gas discharge port 53 for discharging a large amount of water vapor 51 generated by the oxidation heat in the course of eliminating the high moisture content organic waste after deodorization and efficient discharge of the water vapor 51 according to the operation of the powerful turbo pump 52 And an exhaust part 50 is constituted. At this time, the deodorization may be a commercial deodorization method, that is, a chemical deodorization method through chemical treatment or a biological deodorization method using microorganisms. In addition, a bio-chip inlet 15 is formed on the right side of the upper portion 11 of the main body 11 to accommodate a bio-chip into which a large amount of microorganisms have been inactivated during the operation of the extinction device 10 for treating organic waste. Generally, : 1.

As shown in FIG. 1, the raw material of the organic waste is supplied to the inside of the main body 10 of the organic waste disposal apparatus 10 as compared with the conventional raw material supply unit on the left side of the lower body 13, An automatic raw material supply unit 20 is constituted. The construction of the automatic raw material supply unit 20 will be described in more detail. In accordance with the operation of the second drive motor 23, the supplied raw material is discharged to the lower part of the hopper 21 into which the transferred organic waste material flows, A horizontal type feed screw 22 for automatically feeding the raw material into the main body 10 is formed at the end of the feed screw 22. A screw end 24 for dropping the raw material into the main body is formed at the end of the feed screw 22, 24 is sloped downward at an angle of 45 degrees and the raw material having a high water content transferred by the feed screw 22 falls into the main body and is mixed with the existing low moisture content raw material and then raised. On the other hand, the supply amount of the organic waste material to be supplied to the automatic raw material supply unit 20 is controlled and supplied automatically by a temperature sensor (not shown) and a moisture sensor (not shown) in the organic waste disposal device 10.

In the conventional vertical type agitating extinction apparatus, as the height of the agitator is increased, a method of efficiently supplying air into the extinction unit due to consolidation due to the own weight of the raw material and air clogging has been a preliminary solution. However, the extinction device 10 for treating organic wastes according to the present invention is capable of efficiently destroying the organic waste by supplying sufficient air between the fermentation and stirring steps. This is because the first air supply part 30 and the second air supply part 40 Configuration. The first air supply unit 30 includes a hollow tubular shaft 36 connected to the first drive motor 37 installed in the upper portion 11 of the main body 11, And a screw leaf piece 32 which is formed in a spiral shape outside the shaft 36 and stirs the mixed raw material as it is being raised upward from below the main body. The screw leaf piece 32 is hollow, And is in communication with the shaft 36. As shown in Fig. In addition, a vertical inner tube 35 for separating the inserted raw material and the screw blade piece 32 is formed to surround the outside of the screw blade piece 32. A plurality of air injection holes 33 for injecting the upward air 34 supplied from the blower 31 installed from the lower portion 13 of the main body and passing through the inside of the shaft 36 to the downward direction of the main body, ), So that the charged raw material is directed downward due to its own load, so that air can be injected into the generated gap to increase the development of aerobic degrading bacteria in the organic waste disposal apparatus 10.

On the right side of the lower portion 13 of the main body of the organic waste disposal apparatus 10, a second air supply unit 40 for additionally supplying air to the first air supply unit 30 is formed. The voids 44 are formed in the main body 12 and the main body lower portion 13 by connecting the zipper 14 between the main body portion 12 and the main body lower portion 13. The air supplied from the blower 31 installed in the lower portion 13 of the main body passes through the side air inlet 41 and is injected into the air injection port 42 to form the downward jet air 43, Promoting aerobic fermentation by forming pores 44 in the organic waste.

As described above, the first air supplier 30 for supplying air from the lower portion 13 of the main body of the organic waste disposal device 10 and the second air supplier 40 for supplying air from the side of the main body After a large amount of organic waste having a high moisture content can be efficiently oxidized and destroyed, a small amount of residue is discharged through the discharge port 16. FIGS. 2 and 3 are photographs showing a state of the organic waste disposal apparatus 10 according to the present invention, and show the structure of the organic waste disposal apparatus 10 having an organic waste disposal capacity of 500 kg per day.

As a result, the extinction device 10 for treating organic wastes according to the present invention requires air supply to oxidize and destroy organic wastes having a high water content to a vertical type extinction device, but it is a problem due to consolidation and clogging due to its own weight It has been recognized that the shape of the upper and lower parts of the body of the extinction machine is different and the air is supplied from the lower part and the side of the body and the feeding method of the raw material is directly supplied to the lower part of the body by using the feed screw, .

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. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: Destroyer for organic waste treatment
20: Automatic raw material supply part
30: First air supply part
40: second air supply part
50:

Claims (6)

A main body composed of upper, middle, and lower portions;
A hopper into which the organic waste material flows; A feed screw for horizontally feeding the raw material from the bottom of the main body to the inside thereof; And a second driving motor for driving the conveying screw to supply the organic waste material transferred from the outside to the inside of the main body;
A hollow tubular shaft installed in a vertical direction inside the body to be rotationally driven; a shaft formed on a surface of the shaft to communicate with the shaft and having a plurality of air injection holes formed on a lower surface thereof to supply air downward, And a driving motor connected to one end of the shaft for driving the shaft to rotate; a first air supply unit for supplying air into the shaft;
A second air supply unit for supplying air to the lower portion through an air injection port formed on a side surface of the main body; And
And an exhaust unit installed on the main body and including an exhaust pump including a pump for sucking steam and gas generated in the main body, and a gas outlet for discharging the steam and the gas to the outside. The method according to claim 1,
Wherein the upper portion has a conical shape, the middle portion has a cylindrical shape, the lower portion has an inverted conical shape, a diameter of a top end of the lower portion is larger than a diameter of a lowermost end of the central portion, Wherein the bio-chip inlet is formed with the microorganism inoculated thereon, and the outlet is formed in the lower portion. delete The method of claim 1, wherein
Wherein the supply of the raw material through the automatic raw material supply unit is automatically controlled by a temperature sensor and a moisture sensor, which are additionally provided in the main body, and are controlled by the controller according to the temperature and moisture content in the main body. The method according to claim 1,
Wherein the first air supply unit further comprises an inner cylinder for spatially separating the organic waste from the screw leaf sheet. The method according to claim 1,
The air supplied from the second air supply unit to the main body through the air injection port is blown downward and the air supplied through the first air supply unit is upwardly introduced through the shaft. Air formed on the lower surface of the screw leaflet communicated with the shaft Which is sprayed downward through a spray hole to promote the fermentation of aerobic degrading bacteria by forming voids in the organic waste being fermented.

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