KR20090006515A - Appratus for treating organic wastes - Google Patents

Abstract

A disposal apparatus for organic waste is provided to promote disassembly activity of microorganism and to improve remarkably disassembly efficiency of the organic waste by injecting external air through a blower and supplying enough oxygen in an agitation vat. A disposal apparatus for organic waste comprises an agitation vat(310), a screw(322), a transfer pipe(323) and a driving unit. The agitation vat contains a cross-section reduction part of which a cross section gradually reduces in a longitudinal direction. The bio-chip in which the organic waste and microorganism are vaccinated is agitated into the agitation vat. The screw is installed at a central part of the agitation vat and circulates a mixture of the organic waste and the bio-chip from a lower part to a top part. The transfer pipe is arranged at a peripheral part of the screw. A driving unit drives the screw.

Description

Organic Waste Disposal Equipment {APPRATUS FOR TREATING ORGANIC WASTES}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic waste treatment apparatus for treating organic waste, such as food waste, animal husbandry waste, or wastewater containing organic matter, and in particular, organic waste and aerobic microorganisms that decompose organic waste in a silo-shaped agitating tank. When decomposing organic wastes while circulating and stirring the biochip mixture inoculated with the upper and lower parts, a plurality of bypass holes are formed at the lower end of the transfer pipe located at the lower end of the agitator tank, so that the pressure and the pressure of the water contained in the mixture are reduced. This prevents the mixture from sticking to the lower end of the stirring tank to prevent normal stirring, and also scrapes the mixture stacked on the lower surface of the stirring tank by providing a scraper at the lower end of the screw installed in the transfer pipe. To circulate, It relates to an improved water decomposition efficiency of the device.

Increasing waste emissions due to industrial development and rapid population growth has emerged as a serious environmental pollutant.

Livestock waste, such as livestock, and manure or wastewater sludge, food industry wastewater such as confectionery, bakery, foundry, and other highly concentrated organic substances (hereinafter referred to as organic waste) Not only does it cause pollution by itself, it causes pollution, and when it flows into the river, there is a problem of promoting water eutrophication (負 營養 化) to contaminate the water.

On the other hand, these organic wastes contain a large amount of water, which is difficult to collect and transport, as well as difficult to incinerate, which is almost landfilled or dumped at sea. However, landfilling or ocean dumping only causes secondary environmental pollution such as soil pollution, water pollution, marine pollution, and there is a limit in that it cannot be a method of fundamentally treating organic waste.

In order to solve these problems, various methods have been proposed to fundamentally solve the above-mentioned disadvantages of the conventional organic waste treatment method by decomposing and removing organic waste such as food waste or livestock waste through microorganisms.

As an example, an apparatus capable of efficiently and mass-processing organic waste by using a biochip inoculated with aerobic microorganisms capable of decomposing conventional organic matters, the present inventors have a silo as shown in FIG. The stirring tank 101 and the screw 102 is installed in the center of the stirring tank 101, the conveying pipe 103 disposed to the outside at intervals with the screw 102, and the screw 102 There has been proposed an organic waste treatment apparatus 100 having a drive motor 104 for driving the wastewater. This device has the advantage of being able to treat large amounts of organic wastewater on an industrial scale, as well as food waste and livestock waste.

On the other hand, the organic waste treatment apparatus 100, the upper and lower circulation stirring to collect the biochip mixture inoculated with organic waste and aerobic microorganisms in the silo-shaped stirring tank 101 to the lower portion and transported upward by the screw 102 In the truncated cone part of the lower silo, organic waste and biochip mixtures are under high pressure by their own weight. In addition, since the organic waste and the biochip mixture contain a large amount of water, a relatively heavy liquid component is concentrated in the lower portion of the stirring vessel 101, so that the mixture located in the lower portion of the stirring vessel 101 The viscosity becomes very high.

When the organic waste and the biochip are subjected to a load due to their own weight in such a high viscosity state, as shown in FIG. 2, the organic waste and the biochip are firmly agglomerated in the truncated cone portion 101a, and the up and down circulation by the transfer pipe is performed. It is not smooth or impossible, which leads to a situation where the treatment efficiency of the organic waste treatment apparatus is drastically lowered or even shuts down, which makes it difficult to perform long-term continuous operation necessary for the treatment of the organic waste.

In addition, since a large amount of water is present in the truncated cone-shaped portion 101a in the stirring vessel 101, and oxygen becomes difficult to supply, it is not suitable as an active condition of organic matter-decomposing microorganisms, and thus the overall decomposition efficiency may be reduced. .

And, in order to improve the above-mentioned clogging problem, a method of vibrating the lower part of the conventional agitator has been proposed, but the method of applying vibration causes some organic wastes and biochips to fall, but vibrations are downward movement of the liquid component contained in the organic wastes. There is a problem that promotes and the organic waste and the biochip to be compacted to more tightly blockage in the truncated cone portion (101a).

Accordingly, the present invention was created to solve the above problems, and an object of the present invention is to improve the blockage phenomenon occurring in the lower portion of the organic waste treatment apparatus, that is, the cross-sectional reduction portion, and at the same time, smoothly inflow and outflow of air by the reaction. By doing so, it is to provide an organic waste treatment apparatus to improve the decomposition efficiency of organic waste through the active activity of organic matter decomposition microorganisms.

The organic waste treatment apparatus according to the present invention for achieving the above object, the lower end is formed with a cross-sectional reduction portion is gradually reduced in the longitudinal section in the longitudinal direction and the stirring tank for stirring the biochip inoculated organic waste and microorganisms, An organic waste including a screw installed at a central portion of the agitator tank for circulating the mixture of the organic waste and the biochip from the bottom to the upper portion, a transfer pipe disposed at an outer circumference of the screw, and driving means for driving the screw As a treatment apparatus, a plurality of bypass holes of the mixture are formed in the lower portion of the transfer pipe located at the cross-sectional reduction portion of the stirring vessel, and thus, there is a configuration feature to prevent clogging of the mixture.

As described above, the apparatus for treating organic waste according to the present invention includes a plurality of bypasses in a transfer pipe located at the lower end of the agitator tank where clogging of the organic waste and the biochip mixture occurs due to a large amount of water condensation and pressure due to its own weight. By forming a hole, a portion of the mixture can be circulated to the bypass hole through the pressure of the own weight, thereby preventing organic waste clogging at the bottom of the stirring vessel.

Also, optionally, a scraper may be installed at the lower end of the screw so that the mixture is stuck to the inner surface of the reduced section of the stirring vessel and does not interfere with the circulation of the mixture.

In addition, a plurality of air supply ports for supplying pressurized air from the outside may be formed in the cross-sectional reduction part of the stirring vessel, or a plurality of blower pipes for supplying pressurized air from the outside may be disposed. As shown in FIG. 5, when the blowing apparatus is blown by arranging a cross-sectional reduction portion or a vicinity of the cross section of the lower end of the stirring vessel in the processing apparatus, a part of the gas to be blown is indicated by an arrow in FIG. 5. Likewise, a force acts on the cross-sectional reduction portion of the stirring vessel, thereby reducing the self weight of the mixture located at the top. In addition, since the blown gas also serves to remove water from the mixture, the viscosity of the mixture may be lowered, and the oxygen contained in the blown gas may improve the decomposition ability of the aerobic microorganisms. That is, the blowing means serves to reduce the self-weight of the organic waste and the biochip mixture, to remove a part of the water and to improve the growth environment of the microorganisms, to promote the decomposition of the organic waste located in the cross-sectional reduction portion of the stirring tank. .

In addition, by increasing the amount of air discharged by the exhaust means rather than the amount of air introduced by the blowing means to achieve a reduced pressure, the amount of evaporation of water in the agitation tank may be increased to further promote stirring of the organic waste and biochip mixture. Can be.

In addition, the pressure of the air introduced by the blowing means may be supplied to be changed over time, such as in the form of a pulsating wave. If the pressure of air is changed periodically or aperiodically, the flow of the organic waste and biochip mixture inside the agitation tank is increased, and even if it is clogged at the cross-sectional reduction part of the bottom of the agitation tank, it can easily lead to collapse, so that the agitation is smoother. It can be done.

Such an organic waste treatment apparatus according to the present invention does not cause a clogging phenomenon in the agitation tank and has an effect of continuously processing a large amount of organic waste for a long time.

In addition, since it is possible to sufficiently supply oxygen in the stirring tank that may be insufficient because the outside air is injected through the blower, it is effective to promote the decomposition activity of microorganisms to significantly improve the decomposition efficiency of organic waste.

In addition, the amount of air to be discharged may be increased to increase the amount of air to be discharged rather than the amount of air to be introduced into the stirring vessel, thereby increasing the amount of water evaporated and reducing the load of the biochip to further promote stirring.

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

Figure 3 is a front view showing an embodiment of the organic waste treatment apparatus according to the invention, Figure 4 is a view showing a partial longitudinal cross-sectional state of Figure 3, Figure 5a of the blowing means of the organic waste treatment apparatus according to the present invention It is a schematic diagram which shows action, and FIG. 5B is an enlarged view of the lower end part of 5a.

As shown in each of the drawings, the organic waste treatment apparatus 300 according to the present invention, a silo-shaped stirring tank 310, the stirring means 320 is installed in the center of the stirring tank 310, Blowing means 330 for pressurizing and supplying air to the inside of the stirring tank 310 and the exhaust means 340 for discharging the gas generated in the stirring tank 310 to the outside.

The stirring vessel 310 is formed in a truncated cone extending in the longitudinal direction and the cross section is reduced toward the lower end, the upper cover and the lower cover to cover the top and bottom 311 and the lower cover 312 is formed do.

The lower cover 312 is coupled to open and close, it is possible to discharge the biochip introduced into the stirring tank 310 after long-term treatment of the organic waste.

In addition, on the upper cover 311, a biochip made of sawdust or wood chips inoculated with organic matter-decomposing microorganisms to provide an environment for growing organic matter-decomposing microorganisms for decomposition of organic waste and to control moisture is introduced. An injection hole (not shown) may be formed, and an exhaust means 340 is formed to discharge decomposition gas generated in the stirring tank 310, and the motor 321 of the stirring means 320 is formed. And, the air pump 331 of the blowing means 330 is installed.

The stirring means 320 is installed on the upper cover 311 to provide power to the motor 321, and vertically installed in the center of the stirring tank 310, the upper end of the motor 321 A screw 322 coupled to and powered to drive the organic waste mixed with the biochip transferred upward through the screw 322 to be spaced apart from the other organic waste around the screw 322. It is disposed on the outer circumferential portion and the lower portion is positioned higher than the screw 322 so that the organic waste can be easily transported on the screw 322, the upper portion is the same height as the blade formed portion of the screw 322 Located in the made of a cylindrical transport pipe 323 formed so that the organic waste falls to the bottom.

In particular, the lower end of the screw 322 to form a flat or somewhat bent scraper 322a at the end to adhere to the inner wall surface of the frusto-conical portion 310a located at the lower side of the stirring tank 310 By scraping off organic waste, more effective blockages are prevented.

It is preferable that the scraper 322a uses a stainless steel material resistant to salts, moisture, or the like, or a steel material resistant to corrosion.

In addition, the scraper 322a may be integrally manufactured with the screw 322 or may be separately attached to the scraper 322a by welding or the like.

In addition, a plurality of bypass holes 323a through which the biochip may be introduced are formed at the lower end side of the transfer pipe 323. Accordingly, the biochip and the organic waste can be easily mixed and agitated, thereby preventing clogging due to a bottleneck occurring in the gap between the transfer pipe 323 and the stirrer 310.

In particular, since the biochip is forcibly inserted into the bypass hole 323a without agglomeration by the pressurized air forcedly supplied from the blowing means 330, the biochip is conveyed from the bottom to the top by the screw 322. The agitation is smooth with organic waste, preventing bottlenecks.

The blowing means 330 is installed on the upper cover 311 of the stirring tank 310, the air pump 331 for compressing and blowing air required for decomposition of organic waste, and the air pump 331 It is connected to the discharge port and is inserted into the inside of the stirring tank 310 consists of a blower tube 332 is installed to extend to the position where the circumference of the stirring tank 310 begins to decrease.

The blower pipe 322 is provided with a plurality of truncated cone portion 310a along the inner circumference of the stirring tank 310, the uniform air pressure may be applied to the lower end of the stirring tank 310. In addition, the air pressure may be applied to change periodically or aperiodically with respect to time, such as a pulsating wave. If the air pressure is changed in this way, the mixture of the mixture in the lower part of the stirring vessel may be easily collapsed, and the blockage may occur when severe blockage occurs. To solve the problem.

Accordingly, as shown in FIG. 5, the organic waste is pressed by air pressure, thereby preventing agglomeration occurring in the truncated cone portion 310a of the stirring vessel 310.

The exhaust means 340 is composed of a motor in which a fan is installed for forcibly discharging gas containing ammonia or carbon dioxide generated when the organic waste is decomposed by the organic matter-decomposing microorganism in the stirring tank 310 to the outside. .

Here, the humidity in the mixing tank 310 by adjusting the blowing means 330 and the amount of air supplied and discharged by the exhaust means 340 installed on the upper cover 311 of the stirring tank 310 The amount of evaporation and temperature were increased to facilitate stirring of the biochip and organic waste.

That is, by increasing the amount of air discharged by the exhaust means 340 than the amount of air introduced into the stirring tank 310 by the blowing means 330, that is, forming a reduced pressure, the stirring tank The amount of evaporation of moisture or moisture present in 310 is increased, and at the same time the temperature is increased. Accordingly, the load of the biochip containing moisture or moisture is also reduced as the moisture or moisture is evaporated, so that the organic waste and the biochip are more easily stirred than when the moisture or moisture is contained.

In addition, the configuration for adjusting the amount of air discharged more than the amount of air introduced into the stirring tank 310 can be applied to a variety of configurations that are generally used, a detailed description thereof will be omitted.

For example, by installing an air amount adjusting means (not shown) between the blowing means 330 and the exhaust means 340 to adjust the amount of supply and discharge of air, the amount of air discharged is greater than the amount of air supplied. I can regulate it.

6 and 7 are views showing another embodiment of the stirring tank according to the present invention, as the frusto-conical portion 310a located on the lower side of the stirring tank 310, the air from the outside A plurality of air supply ports 310b that can be supplied by pressurization were formed.

That is, unlike the blowing pipe 332 of the blowing means 330 is installed to extend to the position where the circumference of the stirring tank 310 begins to decrease, pressurized air supply, the truncated cone of the stirring tank 310 By forming a plurality of air supply ports (310b) in the portion (310a), by connecting the blower pipe 332 connected to the discharge port of the air pump 331 for compressing and blowing air to each of the air supply ports (310b) As shown by the arrow in FIG. 7, air pressure is applied upward in the truncated cone portion 310a to reduce the weight of the organic waste located at the top and to appropriately reduce the moisture of the organic waste, thereby reducing the organic waste and the biochip. This prevents agglomeration caused by too much moisture during stirring.

In addition, the air supply port 310b may be provided with a nozzle (not shown) capable of supplying air at a more powerful pressure in order to partially destroy the aggregation of organic waste.

Referring to the operating state of the organic waste treatment apparatus according to the invention configured as described above are as follows.

First, a screw capable of controlling moisture, such as a biochip (that is, a well-known microorganism capable of decomposing organic matter to a crushed wood chip (sawdust)), such as an organic strain, is added to the stirring tank 310. Insert so that 322 is not locked.

Next, the organic waste to be treated is introduced into the biochip, and the screw 322 is rotated by operating the motor 321 of the stirring means 320.

When the screw 322 is rotated, the organic waste collected at the lower end of the stirring tank 310 is pulled up by the screw 322 and moved to the upper end through the transfer pipe 323, thereby falling, the stirring tank The organic waste and the biochip introduced into the 310 are mixed evenly.

In this mixing process, the organic waste is decomposed by an aerobic strain inoculated on a biochip.

At this time, in the truncated cone portion of the lower end of the stirring tank 310 by a pressure of the mixture of the organic waste and the biochip, as shown in Figure 5b, a portion is bypassed through the bypass pipe 323a Therefore, no excessive pressure is applied.

In addition, the organic waste adhering to the inner wall surface of the frusto-conical portion located at the lower side of the stirring tank 310 by the scraper 322a formed at the lower end of the screw 322 during the rotation operation of the screw 322. The scraping is more effectively prevented from clogging due to sticky accumulation of organic waste.

At this time, the air is pressurized and supplied through an air supply port 310b formed in a plurality of blower pipes 332 installed inside the stirring tank 310 or the truncated cone portion 310a of the stirring tank 310, and thus The pressurized air exerts a force on the organic waste and the biochip located in the lower end of the stirring tank 310, it is possible to prevent clogging due to agglomeration in the truncated cone portion 310a of the stirring tank 310 Rather, the organic waste and the biochip located in the upper portion prevent the organic waste and the biochip in the lower portion from being compacted.

In addition, since the air supplied through the blowing means pipe 330 has a lower moisture content than the air in the stirring tank 310, the air absorbed by the lower portion of the stirring tank 310 partially absorbs the water to the upper portion by the screw 322. Since it is discharged, the organic waste and the biochip located in the lower portion of the stirring tank 310, too high moisture content may be prevented from inhibiting the activity of the microorganism.

1 is a view showing a conventional organic waste treatment apparatus.

2 is a schematic view showing a clogging phenomenon of organic waste in a conventional organic waste treatment apparatus.

Figure 3 is a front view showing an embodiment of the organic waste treatment apparatus according to the present invention.

4 is a view showing a partial longitudinal cross-sectional state of FIG.

Figure 5a is a schematic diagram showing the action of the blowing means of the organic waste treatment apparatus according to the present invention.

FIG. 5B is an enlarged view of the lower end of FIG. 5A.

6 is a view showing another embodiment of the stirring vessel according to the present invention.

7 is a schematic view showing the action of the blowing means formed in the stirring vessel of FIG.

※ Explanation of code about main part of drawing ※

300: organic waste treatment apparatus 310: agitator

310a: truncated cone portion 310b: air supply port

311: upper cover 312: lower cover

320: stirring means 321: motor

322 screw 322a scraper

323: transfer pipe 323a: bypass hole

330: blowing means 331: air pump

332: blowing pipe 340: exhaust means

Claims (6)

The lower end is formed with a cross-sectional reduction part which gradually decreases in cross section in the longitudinal direction, and is provided with a stirring tank for agitating the biochip inoculated with organic waste and microorganisms, and a mixture of the organic waste and the biochip is installed in the center of the stirring tank. An organic waste treatment apparatus comprising a screw for circulating to an upper portion, a conveying pipe disposed at an outer circumference of the screw, and a driving means for driving the screw, And a plurality of bypass holes of the mixture are formed in the lower portion of the transfer pipe located in the cross-sectional reduction portion of the stirring vessel, to prevent clogging of the mixture. The organic waste treating apparatus of claim 1, wherein a scraper is installed at a lower end of the screw so that the mixture does not adhere to a surface of the cross section of the stirring vessel. The organic waste treatment apparatus according to claim 1 or 2, wherein a plurality of air supply ports for supplying air by pressurizing the air from the outside are formed in the end portion of the stirring vessel. The organic waste treatment apparatus according to claim 1 or 2, wherein a plurality of blower pipes for pressurizing and supplying air from outside are disposed in the cross-sectional reduction portion of the stirring vessel. The method of claim 3 or 4, wherein the amount of air discharged by the exhaust means is increased to increase the amount of air discharged by the air blowing means, thereby increasing the amount of water evaporated in the stirring tank and increasing the load of the biochip. Organic waste treatment apparatus, characterized in that to promote the stirring of the organic waste and the biochip by reducing the. The organic waste treating apparatus according to claim 3 or 4, wherein the pressure of the air introduced by the blowing means is supplied to change with time.

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