KR100340191B1 - Food waste recycling apparatus - Google Patents

Abstract

PURPOSE: Provided is an apparatus for recycling food and vegetable wastes which is characteristically contains a drier for drying food and vegetable wastes using incineration heat. CONSTITUTION: An apparatus for recycling food and vegetable wastes is characterized by comprising an incinerator for the incineration of food and vegetable waste; a drier of adulteration using incineration heat generated from the incinerator; and a drying furnace of food and vegetable waste using incineration heat generated from the incinerator.

Description

Food and vegetable waste recycling apparatus {FOOD WASTE RECYCLING APPARATUS}

The present invention composted the applicant's patent No. 087464 (manure and septic tank sludge pretreatment method) and a pretreatment technique using a centrifuge, and the manure cake of Patent No. 169304 (manure altitude treatment method), and separated the sewage solution. The present invention relates to a food and vegetable waste recycling apparatus for recycling food waste into resources.

Korea's food waste has more emissions than other wastes, and it has a complex difficulty in handling because of the problems of perishability, salt, water content, and insoluble contaminants. If these landfills are decomposed after landfilling, they are decomposed after landfill, and the fatty and organic fats and fats are denatured as fatty acids, and ammonium nitrogen is leached into ammonium, which acts as a toxin load for microorganisms during leachate treatment, thus providing a problem that water treatment cannot be completed. have.

Some cities are trying to derive the technology by feeding and composting on a small scale, but the organic materials for the recycling of food waste are non-filtration materials, which have a high water content and fast corrosiveness of more than 80%, and feed supplements for feed, and moisturizers for composting. There is a problem of high cost that must be mixed, fermentation process again and there is a limit that cannot handle a large capacity.

In addition, the large amount of vegetable waste generated in the distribution process is more than 75% water content is high corrosive and generated as a group, which also requires a lot of construction costs for resources, and has similar problems with food waste treatment.

Therefore, food and vegetable waste is urgently needed to develop a technology capable of processing a large amount of waste at any one time.

As described above, the processing technology to date cannot complete environmental foundations or resources, and therefore, when food waste is brought in by a dedicated truck, it can be shredded, decomposed, cleaned of contaminants, sediment removal, segregation dewatering, and salt removal without delay. In addition, the process of separating solidified organic resources and liquids is used as a batch process, so that insoluble materials can be recovered, washed and dehydrated as much as possible to facilitate incineration. Low-cost materials such as cakes, sawdust and masatos can be mixed to make it compostable after fermentation, and the centrifuge can be combined with sewage.

In addition, the wastes removed from the food waste can be dried by the waste heat of the incinerator to operate the low fuel consumption incinerator, and the waste heat of 800 ℃ or more can be operated as the drying heat of the drying furnace. It is to provide a food and vegetable waste recycling device that can stay and dry enough to feed.

Figure 1 is an embodiment showing the food waste composting of the present invention

Figure 2 is an embodiment showing a vegetable trash feed according to the present invention

Explanation of symbols on the main parts of the drawing

One; Input hopper 2; Crushed Shredding Separator

3; Contaminant handler 4; First reservoir

5; Transfer pump 6; Flow adjustment tank

7; Centrifuge 8; 2nd reservoir

9; Incinerator 11; Fermenter 14; Screw conveyor 15; Deodorization tower 16; Contaminant dryer 2b; Crusher 2c; Conveying conveyor 2d; Immersion cylinder 2g; Washing water spray nozzle 3a; Rotary screen 7a; Inlet tube 7b; Single ball 7c; Internal screw 7d; Gearbox 7e; Screw conveyor 9a; Stack 9b; Heat exhaust stack 9c; Incinerator 10b; Cutter 10c; Inlet hopper 10d; Drying stage 10e; Exhaust fan 11b; Drive shaft 11c; Admixture

In order to achieve the above object, the present invention provides an incinerator having an incinerator made of refractory bricks for incineration of food waste, and to dry a contaminant recovered in a state in which water contained in waste heat generated in the incinerator is removed. Stacked with a junk dryer that is connected to the upper part of the incinerator and the heat dissipating stack outside and a punching cylinder is installed therein, and waste heat obtained by incineration of the impurities dried in the incinerator as drying heat for drying the vegetable waste. Provided is a food and vegetable waste recycling apparatus comprising a drying furnace. In addition, the drying furnace is for storing the heat source of the blower communicating with the drying furnace in the lower part of the stack inside to evenly introduce the contaminants which are the imported vegetable waste. Inlet hopper and the inside of the inlet hopper is installed It is provided with cutters for cutting a defined size, within the body of the drying furnace and the drying stage consisting of consisting of a multi-stage for drying the contaminants with its features.

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

Figure 1 is an embodiment showing the food waste composting of the present invention, Figure 2 is an embodiment showing the vegetable waste feed of the present invention, an input hopper into which the food waste brought into bulk or small packaging ( 1) is installed, and one side of the input hopper (1) is connected to the crushed debris separator (2), the crushed debris separator (2) is installed in the lower portion in the hopper (1) without delay The shredder 2b for crushing the wood into pieces, the conveying conveyor 2c installed at the lower part of the shredder 2b, for moving food wastes that have passed through the shredder 2b without delay, and of the conveying conveyor 2c. A plurality of washing water spray nozzles (2g) for spraying washing water to remove salts contained in the crushed contaminants and upper shells contained in the food waste conveyed through the conveying conveyor (2c), Consists of a vulgar, immersion cylinder (2d) such that work to depositing the glass particles and the like.

On one side of the contaminant crushing separator (2) is installed a contaminant processing unit (3) in communication, the rotary screen (3a) is installed in the filter cylinder of the contaminant processing unit (3) with a gap of 5 mm or less, It is equipped with a ring screen to loosen the blockage, and the associated debris can be stored, and a cylinder is formed in which the filtration part and the dehydration part communicate with each other, and a punching hole is formed, and a screw which cooperates with the gap between the inner wall of the cylinder is installed. .

The lower part of the contaminant crushing separator (2) and the contaminant processing unit (3) stores the separation liquid, that is, the water contained in the washing water or food waste sprayed to remove salts contained in the contaminant in the washing water spray nozzle (2g). A first storage tank 4 is provided, and a pump 5 for transferring moisture or the like stored in the first storage tank 4 is installed at one side of the lower end of the first storage tank 4. In the upper portion of the pump (5), a flow adjusting tank (6) for adjusting the flow rate into the centrifuge (7) is installed in connection with the centrifuge (7), the centrifugal separator (7) is a concentrated horizontal ball, concentrated gradient Ball, dehydrating inclined ball (7b), the inner wall of the outer ball and the inner screw (7c) cooperated with a clearance of less than 1mm, and the shaft of the outer ball (7b) coupled with the reduction shaft is the inner screw ( 7c) it consists of a gearbox 7d interlocked with the shaft.

In the lower part of the centrifugal separator (7), a second storage tank (8) for temporarily storing the separation liquid is installed. At the bottom, an acid pipe for abandoning the air supplied from the blower is installed, and a pump for transferring the liquid to the sewage treatment plant is installed.

The lower part of the centrifuge (7) transfers the food cake recovered from the centrifuge, a screw conveyor (14) receiving a mixing line to be mixed with the manure cake, sawdust, Masato and the like is installed, the centrifuge (7) One side is provided with a mixer 11c, which is connected to the screw conveyor 14 and interlocks with the drive shaft 11b, and a fermentation tank 11, in which a stack is installed, which distributes hot air from the bottom of the tank. ), The contaminant crushing separator (2), the contaminant treatment machine (3), the centrifuge (7) and the fermentation tank (11), etc. are generally known techniques, and the description of the detailed description or drawings other than the above-described schematic description is omitted.

On the other hand, as a main feature of the present invention, as shown in Figure 2 in the screw press of the contaminant processor 3, the water contained in the contaminant is removed, the screw on one side of the contaminant processor (3) to transfer the dehydrated contaminant The punching cylinder 16a cooperated with the conveyor is installed inside, and the stack 9a surrounding it is installed outside, one end is connected to the heat exhaust stack 9b of the incinerator 9, and the other end is provided with a blower 10e. The provided contaminant dryer 16 is installed.

One side of the contaminant dryer 16 is provided with an incinerator (9) adjacent to the inflow hopper for receiving the contaminants dried in the contaminant dryer (16) and the heat discharge stack (9b), and inside the incinerator (9) The incinerator (9c) of the stepped structure is installed, the drying furnace 10 is installed on one side of the incinerator (9), which can accommodate the heat source of the blower (10e) and brought in An inflow hopper 10c for evenly introducing the trash of vegetable waste, a cutter 10b installed inside the inflow hopper 10c to cut the scavenger to a certain size, and gradually transporting the scum from the top to the bottom. Drying stage (10d) consisting of a multi-stage for the installation is configured inside, the deodorizing tower 15 for removing the odor generated in the drying furnace 10 is configured on the upper end of the drying furnace (10).

The present invention configured as described above, as shown in Figure 1, first, when the food waste collected by the collection truck flows into the input hopper (1), the two large crushers (2b) rotated with a large force interlocked with each other It is crushed to a certain size and poured to the bottom. At this time, the conveyance conveyor 2c installed on the bottom surface is transferred forward, and the salt and the organic matter of the contaminant are separated by the washing water sprayed from the washing water spray nozzle 2g on the upper part of the casing.

Food waste contains insoluble contaminants, such as shells, cutlery and metal and glass, which make processing difficult.

These are deposited by the operation of the deposition cylinder (2d) while moving forward to the conveying conveyor (2c) to be removed by screwing out to the outside with a screw conveyor.

As described above, the food waste which has been cleaned and the sediment removed is introduced into the contaminant treatment machine 3, and crude contaminants larger than 5 mm are removed by a filter tube with a rotary rotary screen 3a embedded therein and introduced into the cylinder. By dehydration at a water content of 75% or less and transported to the outside, and the separation liquid is received into the first storage tank (4).

The first storage tank 4 is operated for the purpose of preventing overload operation of the machine and quantitatively supplying it to the centrifuge 7. The liquid is drawn into the flow regulating tank 6 by the pump 5 installed at the bottom thereof, which is centrifugal. The quantitatively flows into the separator 7 and the surplus amount plays the role of being returned to the first storage tank 4 again.

When the liquid phase of the flow adjusting tank 6 flows into the inlet pipe 7a of the centrifuge 7 while the centrifuge 7 is rotating forward, the inner wall of the outer bowl 7b is discharged from the liquid dispersion port of the inner screw 7c. Dispersed in the forward movement 7b has a centrifugal force toward the inner center, the fluid has a strong centripetal force when the inner fluid has the same rotational speed by the centrifugal movement thereof.

The mechanical centrifugal force and the centripetal force of the fluid are balanced so that the fluid specific gravity is close to zero and its equilibrium value is such that the microparticles are deposited on the inner wall of the single-ball ball 7b by the large centripetal force.The organic matter deposited is slightly slower than the single-ball ball 7b. The inner wall of the movable ball 7c is moved forward by using the screw blades of the inner screw 7c having the guide as the guide. When the inclined ball is reached, the mechanical inclined centrifugal force is increased at the equilibrium value of the mechanical centrifugal force and the liquid centripetal force. While being restrained, the centripetal force of the atmosphere is applied and concentrated first. Since organic matter of food is non-filtration, reducing water content leads to low solids recovery and high water content to increase solids recovery.

Therefore, in this process, it is concentrated to about 90% in the first place and then introduced into the second inclined ball having an inclination angle of 15 ° or less to sufficiently receive the centripetal force of the atmosphere and recover the cake with a water content of 80% or less.

At this time, the desorption liquid is introduced into the second storage tank 8 or directly flows into the sewage treatment plant, thereby increasing the concentration of low organic matter in the sewage to help microbial activity. The cake recovered in the centrifuge is transferred to the screw conveyor due to the rather high moisture content and rapid decay, and line-mixed the cake, sawdust, masato, etc. recovered during the manure pre-treatment to the fermentation tank (11), and at the bottom of the fermentation tank (11). The hot air is supplied and the admixture 11c installed on the drive shaft 11b gradually moves forward and backward while admixing so as to blend with each other, thereby allowing the organic compost to be of good quality through 15 or more days of ripening.

Hereinafter, the operation of the processing of the impurities removed from the food waste in Figure 2 will be described.

First, the debris removed from food waste must be landfilled or incinerated to the next process.

When the landfill is buried, even though the water contained in the contaminants is dehydrated, there is a substance that will leach the leachate, and when it is incinerated, there is a problem of high cost because of the water content.

Therefore, as an incinerator in the food waste treatment plant to incinerate the contaminants to maximize the waste heat of the waste, the incinerator that is 800 ℃ or more in the process of transporting the condensate from the condensate treatment (3) to the incinerator (9) The exhaust heat passes through the stack 9a to be efficiently transmitted to the punching cylinder 16a installed at the center thereof, and to sufficiently dry the impurities that are slowly moved by the screw conveyor. The dried contaminants are introduced into the incinerator (9) and incinerated, and the furnace heat of 800 ° C. or more formed at this time is passed through the stack (9a) with the exhaust fan (10e), and then introduced into the drying furnace (10). Maintain the state that the trash of the imported vegetable waste is evenly stacked in the inflow hopper (10c) to prevent the internal heat loss of the drying furnace 10, and cut the trash of the vegetable trash with the cutter (10b) to the appropriate amount of size to the top When it is introduced into the drying stage (10d) of the heat is evenly transferred by the wave screen begins to dry slowly, gradually transferred to the lower stage from the drying stage (10d) of the upper layer and discharged the dried vegetables from the last stage to the outside hydraulic Compressed and packaged to make feed for livestock.

As described in detail above, it is a known fact that food waste cannot be properly disposed of by incineration or landfill due to large discharge and property problems. In addition, research and development is progressing due to feed and composting, but due to problems of moisture content, non-filtration, and corrosiveness, there is no efficient method.

Therefore, the present invention solves problems in the treatment process by removing crushing, washing, and unsatisfactory in the initial stage, and the removed crude sediments are dehydrated and washed at high pressure, and incinerated by incineration waste heat when incinerated by secondary means, thereby incinerated by contaminants. The organic matter recovered by centrifuge can be matured in fermenter and organic composted, and the separated liquid can treat large amount of food waste at low cost in the combined treatment with sewage and incinerator installed in the same place By incineration, the waste heat generated by incineration is used for the drying process of contaminants, which are vegetable waste, and a large amount of vegetable waste can be processed in a low cost and simple process. Can handle food and vegetable waste In addition, the recovered organic matter is composted, dried vegetables can be used as a feed source.

Claims (3)

An incinerator having an incinerator made of refractory bricks for incineration of food waste, A junk dryer which is connected to the upper part of the incinerator and the heat discharge stack in order to dry the contaminants recovered while the moisture contained in the waste heat generated in the incinerator is removed, and a punching cylinder is installed therein; Food and vegetable waste recycling apparatus comprising a drying furnace for drying the vegetable waste using waste heat obtained by incineration of the contaminants dried in the incinerator as drying heat. According to claim 1, wherein the drying furnace is an inlet hopper for storing the inside of the heat source of the air blower communicating with the drying furnace in the lower part of the stack inside and evenly inflow of the contaminant which is the imported vegetable waste, and the inside of the inlet hopper is installed Food and vegetable waste recycling apparatus, characterized in that consisting of a cutter for cutting to a predetermined size, and a drying stage is installed in the body of the drying furnace consisting of a multi-stage to dry the contaminants. delete