KR100492156B1 - An apparatus for drying high-moisture containing organic waste - Google Patents

Abstract

The present invention is to provide a drying apparatus and a drying method for high moisture waste organic matter which can remove water from the high moisture waste organic matter and can odorize the odor generated in the process of water removal.

To this end, a highly spiral waste material containing high moisture is introduced into a horizontally long cylindrical drying space formed by the container body 1 to rotate the waste water-containing organic matter by the motor 8 without a shaft. The inner heating means 9 and the outer heating means 12 for heating the container main body 1 from the outside by moving the inside of the container main body 1 to the center of the shaftless spiral blade 7. The water-containing waste organic matter is heated and dried, and the odor generated during the heat drying process is introduced into the deodorizer through the exhaust fan 14 to pass the odor to a plurality of expanded metals 17 installed in a different direction. Each time, the flow is changed, and the odor removal liquid is sprayed onto the flow of odor to remove odor, and the fine particles of the odor removal liquid contained in the exhaust are adsorbed and flowed to the downstream expanded metal 17. Remove

Description

Drying device for waste organic matter containing high moisture {AN APPARATUS FOR DRYING HIGH-MOISTURE CONTAINING ORGANIC WASTE}

The invention of the present invention, livestock manure, unusable feed, root vegetable skin, food leftovers, tofu raw materials, juice raw materials, coffee raw materials, beer raw materials, salty leftovers such as alcohol, sludge-shaped biomass, paper sludge The present invention relates to a drying apparatus and a drying method for waste water-containing high-density organic matter, which can strongly remove moisture from waste water-containing high organic matters such as and the like, which can odorize the odor generated during water removal.

The last decade of the twentieth century was a time when environmental problems were recognized and expanded to the global scale, and at the same time it became clear that consumer civilization was deeply related to environmental problems. And one of the environmental problems that have a great relationship with this civilization is the "mass waste problem."

Since industrial wastes are discharged by type, animal manure and construction waste account for about 80% of the total, and the remaining years of the final disposal site show that the remaining capacity in the metropolitan area is low.

Garbage problems are both quantity and quality problems. The "quantity problem" began to surface with the increase in the amount of waste so large that it could not be matched with the proper disposal and disposal of waste, with the proliferation of illegal dumping everywhere. "Quality problem" is based on the fact that in addition to dioxin caused by the generation or burning of water pollution by the harmful substances contained in the waste, the occurrence of the impact on the natural environment and the health of the community due to the drop of harmful substances is confirmed. It began to surface.

In the past, local governments have responded to the problem of garbage in terms of hygiene and based on incineration, which leads to widespread waste reduction. However, since the incineration process does not prevent the increase in the amount of waste, it is obvious that sooner or later there will be a shortage of the final disposal site, and there is a problem that the possibility of recycling the waste is cut off. From this point of view, the shift from one-way type incineration to landfill to recycling type with emphasis on reduction and recycling is important.

The Food Recycling Act, which requires food waste to be reused and reduced in weight, has been introduced in some supermarkets and food manufacturing companies. Has not yet reached full-scale introduction in view of treatment costs.

The Food Recycling Act requires businesses that emit more than 100 tons of food waste per year to reduce 20% of their emissions after five years. In addition to businesses such as food manufacturing, processing, and retail, the company also targets businesses such as restaurants and hotels, and reaches about 1 million businesses nationwide.

The amount of food residues (wet garbage, residues, etc.) in the country is 11 million tons per year, which is almost the same as rice production. Food residues incinerated at incineration plants account for about one-third of general business waste. This food residue has long been used as feed and fertilizer. Even today, there are specialists who collect and re-use waste oil and fish tailings, and hog farmers who collect and use residues. However, the number is decreasing due to the increase in the amount of imported feed or pork.

Even in such a situation, efforts are still being made to recycle the food residue. One company collects tons of food residues from food factories, food service centers and hospitals a day, and divides them into feeds and others. For feeds, fermented feed is mixed with soy feed, bran and fishmeal. The other residues are mixed with pig's food and fermented to methane, and most of the pig's heating is supplied by this methane gas, and the solids are fermented compost. Two tonnes of residue and three tonnes of manure are processed per day, leaving no waste.

It is rarely dried because it has 70% water content. Busy paper has a lot of moisture and is easy to rot, so it has not been used as animal feed for a long time and has been disposed of. When making tofu with soybeans, about 40% is busy. And more than 60% of the generation is being discarded. Food companies that produce tofu or tofu using soybeans or black soybeans require hundreds of millions of dollars annually to process the busy business. The recycling of busy foods is carried out as bread, cookies, non-electrical diseases, and non-linear incense using busy dry powder. This recycles waste paper that has been disposed of in large quantities as industrial waste, leading to consideration of the environment and cost reduction of waste disposal. In addition, recycling of fish bones is also carried out. However, the total proportion of these recyclings is very small. The absolute shortage of recyclers makes it difficult to deploy food waste nationwide.

Attempts have also been made to convert food waste into fuel. Wet trash and food leftovers are crushed with a compressor to form a liquid, and methane is produced in fermentation tanks and used for hot water supply.

But the methane production process takes time and is not 100% recyclable because of the wastewater and sludge coming out. Among these, methods for manufacturing and selling compost by crushing and dehydrating general waste such as wet waste and industrial waste such as busy paper have been studied.

In addition, the recovery and use of thermal energy by manure of cattle or chickens in breast milk plants is performed. As such a conventional method, the manure of livestock is methane fermented and recycled using methane gas as an energy source. A fermentation tank + other equipment is constructed to produce biogas from manure of cattle or chickens in the livestock plant, and manure of cattle or chickens is introduced to generate gas with a methane content of about 60% for use in cogeneration power generation facilities. As a result, the energy demand of the apparatus and the oil storage plant is supplied, and surplus power is transmitted to other power systems. In addition, a method of using pig or cow manure as a fuel for generation is being studied. Livestock manure can be converted to compost and sold to farms forty percent. There were many cases of incineration because they were only available as compost. By using this surplus manure as a fuel for generation, if manure can be treated well, large-scale management is possible, leading to the improvement of international competitiveness. Moreover, although manure of chickens that can be used as compost has been generated, water pollution due to dumping is a problem, but if it is possible to mix and burn a combustion aid with chicken manure, it can lead to the development of unused energy.

The present invention can remove moisture from waste water containing high concentration of organic matter such as manure of animal, unusable feed, bean, juice, coffee, liquor, sludge, biomass, paper sludge, etc. It is an object of the present invention to provide a drying apparatus and a drying method for waste water containing high moisture, which can odorize odor generated during water removal.

In a first aspect of the present invention, there is provided a drying apparatus for waste water having high water content, the drying device comprising: an inlet for introducing waste organic matter; A cylindrical container body elongated in the horizontal direction; An outlet for discharging dried waste organic matter; A shaftless spiral blade having a odor discharge port for discharging odors and disposed in the container body to stir-feed waste organic matter; Drive means for rotating the shaftless spiral blades; Outer heating means for heating the waste organic matter from the outside of the container body; It is provided at the center of the shaftless spiral blade is provided with a drying apparatus for high moisture-containing waste organic matter comprising an inner heating means for heating the waste organic matter from within the container body.

Preferably, the drying apparatus is provided with a deodorizing device for separating and removing odor generated when heating the high moisture-containing waste organic matter to remove water, the deodorizing device comprises: a casing; Odor introduction tube which introduces odor; Deodorant liquid circulating means including a tank for storing odor removing liquid, a pump for circulating the odor removing liquid, and a plurality of nozzles for spraying the odor removing liquid; The casing includes a plurality of expanded metals installed vertically at predetermined intervals such that the cutting direction is different by 90 degrees, and removing malodors by adsorbing fine particles of the malodor removing liquid adsorbed with malodor molecules.

In the deodorizing apparatus, the tank storing the malodor removing liquid is preferably provided with an activated carbon tower for capturing organic matter and an ozone generating apparatus for generating and sterilizing ozone.

According to a second aspect of the present invention, in the drying method for waste water containing high moisture, the drying method includes putting waste water containing high moisture into a horizontally long cylindrical drying space formed by a container body of a drying apparatus. Provided is a drying method for high moisture-containing waste organic matter, which is carried out by heating the waste organic matter inwards and outwards by an inner heating means in a cylindrical shape and an outer heating means in a cylindrical shape.

Preferably, the drying method further includes the step of separating and removing the odor generated when the moisture-rich waste organic matter is removed by heating the water by a deodorizer.

Hereinafter, an embodiment of a drying apparatus and a drying method of the present invention will be described with reference to the drawings.

In FIG. 1, code | symbol A represents a drying apparatus, code | symbol B represents a deodorization apparatus.

The drying apparatus A is equipped with the waste organic matter inlet 2 at one end of the container main body 1, and the dry organic matter outlet 3 and the odor discharge outlet 4 at the other end. It is preferable that these are stainless steel.

The container body 1 is made of stainless steel and forms a cylindrical drying space long in the horizontal direction. The waste organic matter inlet 2 is connected to the upper surface of one end of the container main body 1. The dry organic matter discharge port 3 is connected to the lower surface of the other end of the container main body 1 in communication. The odor discharge port 4 is connected to the upper surface of the other end side of the container main body 1 in communication.

Therefore, high-density waste organic matters such as livestock manure, unusable feed, bean, juice, coffee, and liquor, sludge-shaped biomass, paper sludge, etc. are introduced from the waste organic matter inlet (2). The waste organic matter is discharged from the dry organic matter outlet 3, and the odor generated in the drying step is exhausted from the odor discharge outlet 4.

The drying apparatus A is a small diameter part of the rotating shaft 6 accommodated in the bearing part 5 provided in the end surface part of the waste organic matter inlet port 2 side of the container main body 1 from the dry organic matter outlet port 3 side ( 6a) is pivoted into the inserted state, and then the shaftless spiral blade 7 accommodated from the dry organic outlet 3 side in the container body 1 has the outer circumference of the large diameter portion 6b at the inner end side of the rotating shaft 6. It is fixed to the face. The outer end of the small diameter portion 6a of the rotating shaft 6 is connected to the motor 8. Therefore, when the motor 8 is driven, the rotating shaft 6 rotates so that the spiral blade 7 without shaft rotates. In addition, it is preferable that the rotating shaft 6 and the spiral blade 7 without a shaft are made of stainless steel.

The drying apparatus A is equipped with the inner heating means 9 in the center of the container main body 1. As shown in FIG. This inner heating means (9) passes through a round annular cover (10) that closes the end face on the dry organic matter outlet (3) side of the container body (1), and thereafter the shaftless spiral blade (7) in the container body (1). It is pivoted by inserting the shaft portion 9a of the inner end into the bearing 11 installed through the end surface of the large diameter portion 6b of the inner end side of the rotary shaft 6, and the flange portion of the outer end side ( 9b) is fixed to the round ring cover 10 so that both ends are supported so as not to rotate even if the rotating shaft 6 rotates. Moreover, the container main body 1 has the inspection opening 1a, this cover can be opened, and the assembly work at the time of pivoting by inserting the shaft part 9a in the bearing 11 can be performed.

The inner heating means 9 is a schematic double tube structure made of stainless steel, and the inner end of the outer tube 9c extends and closes from the inner end of the inner tube 9d, and also closes the inner tube 9d. The end is open so that the inner end of the outer surface 9c and the inner tube 9d are connected by the bracket 9e and kept concentric. The outer end of the outer surface 9c is closed and the closed surface is The inner tube 9d penetrates, and the heating fluid inlet 9f is formed at the outer end of the inner tube 9d, and the heating fluid outlet 9g is formed at the outer end circumferential surface of the outer tube 9c.

When a heating fluid heated at hundreds of degrees (preferably oil at 100 to 150 ° C) is supplied from the heating fluid inlet 9f, the heating fluid flows through the inside of the exterior 9c when it reaches the inner end of the inner tube 9d. It flows out of the fluid outlet 9g.

Therefore, the waste organic material introduced from the waste organic matter inlet 2 is heated inward in the process of moving the container body 1 toward the dry organic outlet 3 by the shaftless spiral blade 7 rotated by the motor 8. It is heated and dried by the heat transfer and radiant heat of the means 9.

The drying apparatus A is provided with the outer heating means 12 on the outer surface of the container main body 1. As shown in FIG. The outer heating means 12 has an annular space surrounding the container body 1 by an outer heating chamber forming wall 12a fixedly fixed to the outer surface of the container body 1, or the container body 1 For example, in four places in the circumferential surface direction, a linear space extending in the bus bar direction of the container body is formed, and heating the heating fluid (preferably oil of 100 to 150 ° C) heated to hundreds of degrees. When supplied from the fluid inlet 12b, this heating fluid flows through the sealed space formed by the outer heating chamber formation wall 12a, heats the container main body 1, and flows out from the heating fluid outlet 12c.

Accordingly, the waste organic matter introduced from the waste organic matter inlet 2 is moved outward toward the dry organic matter outlet 3 of the container body 1 by the shaftless spiral blade 7 rotated by the motor 8. It is heated and dried by the heat transfer and the radiant heat of the heating means 12.

Moreover, the container main body 1 and the outer heating chamber formation wall 12a are enclosed and fixed by the heat insulating material 13, and effective heat utilization is attained.

Therefore, the waste organic matter introduced from the waste organic matter inlet 2 in the drying apparatus A is conveyed while stirring in the container body 1 by the shaftless spiral blade 7 rotated by the motor 8. , Heated by the inner heating means (9) and the outer heating means (12), the water vapor containing the odor is separated and exhausted from the odor discharge outlet (4) at the same time the odor is released, and the dried waste organic matter is dried organic outlet (3) Is discharged from

In the related art, when a waste water-containing high organic matter is moved by a screw shaft and heated to dry from the outside, heat cannot be transferred to the circumference of the shaft and sufficient drying cannot be performed. By installing the inner heating means in the center thereof, it is possible to sufficiently dry the waste water containing high moisture.

The odor discharge port 4 of the drying apparatus A is connected to the deodorizing apparatus B via the exhaust fan 14 and the odor introduction pipe 15, and the odor generating apparatus in the drying apparatus A is deodorized. It is directed to (B) and deodorizes.

Deodorizing device (B) is to install a plurality of (5 in the figure) expand metal (17, 17, ...) in the casing 16 vertically with a predetermined interval so that the cutting direction of the expanded metal is 90 degrees different, and At the same time, the expanded metal 18 is also mounted on the bottom from the bottom surface of the casing 16 and is different from the inner wall of one side of the casing 16 at a position corresponding to the middle of the vertical expanded metal 17, 17. The spray pipe 20 provided with the nozzle 19 which can spray the odor removal liquid toward the inner wall of the side is installed in the inner wall of the casing 16, and the odor removal liquid storage tank 21 installed only in the casing 16 is bad smell. The removal liquid is stored, and the odor removal liquid is fed to the spray pipe 20 through the feeding pipe 23 by the pump 22, and the odor removing liquid is transferred from the nozzle 19 between the expanded metals 17 and 17. By adsorbing odor molecules to fine particles (metal ions) of odor removal liquid The odor is removed by flowing down the fine particles of the odor removing liquid flowing down into the expanded metal 17 on the downstream side, and the used odor removing liquid stored under the expanded metal 18 on the bottom is removed from the recovery pipe 24. It flows down to the odor removing liquid storage tank 21 to reflux, and the organic carbon is captured by the activated carbon tower 25 installed in the odor removing liquid storage tank 21, and at the same time, ozone generated in the ozone generating device 26 is removed. It is introduced into the storage tank 21 and sterilized to avoid the generation of horses.

As described above, according to the present invention, in the horizontally long cylindrical drying space, the waste water-containing high organic matter is moved to the helical blade without axis, so that the waste water-containing organic matter having high moisture content is formed by the inner heating means and the outer heating means. It can be heated and dried sufficiently from the outside and deodorizing device can effectively deodorize, so it can be effectively deodorized, so that the leftovers of livestock manure, unusable feed, bean, juice raw material, coffee raw material, liquor, etc. , Water can be sufficiently removed from waste water-containing organic matter such as sludge-shaped biomass and paper sludge, and odor can be deodorized during water removal process. Therefore, it is possible to provide a drying apparatus and a drying method suitable for powdering high waste water-containing organic matter.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a drying apparatus for waste water containing a high moisture content with a deodorizing apparatus of the present invention.

※ Explanation of symbols for main parts of drawing

A: Drying device B: Deodorizer

1: Container Body 1a: Inspection Hole

2: waste organic matter inlet 3: dry organic matter outlet

4: odor outlet 5: bearing part

6: rotating shaft 6a: small diameter part

6b: inside diameter large diameter part 7: helical blade without shaft

8 motor 9 inner heating means

9a: shaft portion 9b: flange portion

9c: appearance 9d: inner tube

9e: Bracket 9f: Heating fluid inlet

9g: heating fluid outlet 10: round ring cover

11 bearing 12 outer heating means

12a: Outer heating chamber forming wall 12b: Heating fluid inlet

12c: heating fluid outlet 13: heat insulating material

14 exhaust fan 15 odor introduction tube

16: casing 17, 18: expanded metal

19: nozzle 20: spray tube

21: odor removal liquid storage tank 22: pump

23: feed pipe 24: recovery pipe

25: activated carbon tower 26: ozone generator

Claims (5)

In the drying apparatus for waste water containing high moisture, The drying device is: An inlet for injecting waste organic matter; A cylindrical container body elongated in the horizontal direction; An outlet for discharging dried waste organic matter; Equipped with odor discharge outlet to discharge odor, A shaftless spiral blade disposed in the vessel body to stir and convey waste organic matter; Drive means for rotating the shaftless spiral blades; Outer heating means for heating the waste organic matter from the outside of the container body; And an inner heating means installed at the center of the shaftless spiral blade to heat the waste organic matter from the inside of the container body. The method of claim 1, The drying apparatus is provided with a deodorizing device for separating and removing the odor generated when heating the high moisture-containing waste organic matter to remove water, The deodorizer is: Casing; Odor introduction tube which introduces odor; Deodorant liquid circulating means including a tank for storing odor removing liquid, a pump for circulating the odor removing liquid, and a plurality of nozzles for spraying the odor removing liquid; The casing includes a plurality of expanded metals installed vertically at predetermined intervals such that the incision direction is different by 90 degrees, and including a plurality of expanded metals to remove odors by adsorbing fine particles of the odor removing liquid adsorbed with odor molecules. Drying apparatus for containing waste organic matter. The method of claim 2, The tank storing the odor removing liquid is provided with an activated carbon tower for capturing organic matter and an ozone generating device for generating ozone and sterilizing the organic matter. delete delete