KR19990068364A - Recycle method for waste food and apparatus thereof - Google Patents

Abstract

The present invention relates to a method for recycling food and vegetable waste, including crushing and washing means for removing salt by crushing and washing insoluble contaminants of a predetermined size or more contained in food waste, and removing shells, iron materials, glass fragments, etc. in the first stage. Sediment separation means capable of separating sediments, and debris removal means for removing debris of 5 mm or more contained in the liquid phase with a rotary screen, storing the debris removed at a moisture content of 75% or less, and storing the desorption liquid in the first storage tank; Means for supplying the storage liquid to the flow regulating tank and solid-liquid separation of the fixed liquid phase of the adjusting tank with a centrifugal separator, the separating liquid of the centrifugal separator into the second storage tank for merging with sewage, and the separation cake (Cake) Transfers to a screw conveyor so that an appropriate amount of manure cake sawdust or masato is evenly mixed in a line of screw conveyors. Mixing means, to a group of waste heat or yeolpum of the incinerator is more than 50 ℃ air consists of a fermentation method to be supplied to the bottom is evenly aged by the organic heat of the manure cake and allows recycling of organic matter in the food waste into organic compost,

In addition, the debris from the debris processor is transported to the screw conveyor, and the screw conveyor is installed inside the vent stack of the incinerator to dry the contaminants, and the low fuel consumption incineration means for injecting the dried contaminants into the incinerator, and at the incinerator. The waste heat of 800 ℃ or more is passed through the ventilating stack to dry the contaminants, and the drying furnace means to dry the vegetable waste using the heat source of the drying furnace, and the vegetable waste brought into the inflow hopper is properly cut and dried by the cutter. The food is produced in a large capacity by being composed of means for drying vegetable waste with incinerator waste heat, and means for collecting dried vegetable waste and compressing it with a compressor. Construction cost and maintenance pipe There is a feature that can be resourceized while processing with lib.

Description

Food and vegetable waste resource recycling method and apparatus therefor {RECYCLE METHOD FOR WASTE FOOD AND APPARATUS THEREOF}

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 resource recycling method and apparatus for recycling food and vegetable waste to be improved by improving the technology of linking and processing.

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.

Although some cities are trying to derive the technology by feeding and composting on a small scale, the organic materials for the recycling of food waste are non-filtration materials with high water content of over 80% and fast corrosiveness. There is a problem of high cost that must be mixed and fermentation process again, and there is a limitation that it 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, it is not possible to complete the environmental basic facilities or resourceization with the current treatment technology. If food waste is brought into a dedicated truck, it can be crushed, decomposed, cleaned of impurities, sediment removal, dewatered dewatering, Processes such as desalination and solid-liquid separation of reconstituted organic matter to collect, clean and dehydrate insoluble materials as much as possible to facilitate incineration, and to prevent incidental pollutants during landfilling, and to recover organic materials as much as possible in a centrifuge in the pretreatment process. Low-cost materials such as recovered cakes, sawdust and masatos are mixed to allow the fermentation process to be composted, and the centrifuges 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. The present invention provides a food and vegetable waste recycling method and apparatus for allowing it to be sufficiently dried and feed.

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

Figure 2 is an embodiment of 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 storage tank

5; Transfer pump 6; Flow adjustment tank

7; Centrifuge 8; Second storage tank

9; Incinerator

11; Fermenter 14; Screw Conveyor

15; Deodorization tower 16; Crusher Dryer

2b; Crusher 2c; Scrap Bar Conveyor

2d; Immersion cylinder 2g; Water Spray Nozzle

3a; Rotary screen

7a; Inlet tube 7b; Single Ball

7c; Internal screw 7d; Gearbox

7e; Screw Conveyor

9a; Stack 9b; Baeyeonbyeon

9c; incinerator

10b; Cutter 10c; Inflow Hopper

10d; Drying stage 10e; Blower

11b; Baril 11c; Admixture

In the food waste treatment method for achieving the object of the present invention, the food waste transported to the collection truck is put into the input hopper (1) and the salts are washed with washing water while crushing the large contaminants contained in the crushing debris separator (2) Removing and depositing untreated materials such as shells, metals, and glass pieces in the initial stage; separating and dewatering the debris and crude contaminants crushed in the contaminant processor 3; and separating the contaminant separation liquid into a first storage tank. Recovering the organic matter by solid-liquid separation of the micro-wood organic matter contained in the centrifuge (7) while storing in (4), and depositing the separation solution in the second storage tank (8) to treat the separation solution with sewage; , Mixed with the manure cake, sawdust, misato, etc. in the cake recovered from the fermentation tank (11) consists of a step of fermentation by heating or artificial supply heat of organic energy of the manure cake compost. It is broken.

In addition, in the vegetable waste treatment method, the debris separated and dehydrated by the crude wood contaminant remover is dried by incineration by drying the waste heat formed in the incinerator (9c) in the contaminant dryer (16), and the condensate drying process is passed through the drying furnace (10). Drying step of storing the waste heat and using the vegetable waste drying heat, and the step of cutting the vegetable waste brought into the cutter (10b) appropriately and dried while moving from the upper end to the lower end of the drying furnace 10 to feed into.

The first step in the action means for achieving the effect of the present invention is a crushing cleaning means for crushing the large contaminants contained in the crude wood and remove the salt with the washing water, shells, metals, glass pieces while being evenly transferred to the scrap bar Sediment separation and removal means for depositing the harmful substances such as to the deposition tank to remove by screw, the sediment separation and dewatering means for separating the crude wood condensate contained in the contaminant treatment machine and dewatered by screw press, and the separation solution in the first storage tank (4 ) Into the centrifuge (7) to recover the contained organic matter, and to separate the liquid into the second storage tank (8) to be combined with the sewage, and to the recovered organic cake Food waste recycling means consisting of fermentation means that mixes manure cake, sawdust, misato, etc. ,

In addition, the incinerator (9) is composed of incinerator means for drying the incinerator (9) by the exhaust heat to incineration, and vegetable waste feed means consisting of a drying furnace means for introducing the exhaust heat into the drying furnace 10 to dry the vegetable waste.

Hereinafter will be described with reference to an embodiment of the operation and effects of the present invention.

1 is an example of the food waste composting of the present invention, a crusher (2b) for crushing the large contaminants contained in the food waste as shown therein and the deposition cylinder (2d) that can be removed by depositing the contained deposits A sewage crushing separator (2) having a built-in structure is installed, and a contaminant processing unit (3) capable of separating and removing crude contaminants is installed, and a first storage tank (4) for storing the separation liquid is installed.

The pump 5 to transfer the separation liquid and the flow adjustment tank 6 are extended, the flow tank 6 and the centrifuge 7 are extended, and a second storage tank 8 is installed to store the separation liquid, and the liquid is sewage. The pump to be transferred to the treatment plant is isolated.

The cake recovered in the centrifuge 7 is provided with a screw conveyor 14 to mix the manure and livestock waste cake, sawdust, Masato and the like fermentation tank 11 is installed.

Figure 2 is an embodiment for the resource recycling of the vegetable waste of the present invention, the chimney (9a) for giving hot air to the debris dehydrated from the contaminant processor (3) is insulated and the screw conveyor (cooperative with the punching cylinder inside) The junk-dryer 16 incorporating 16a) is installed. Incinerator 9c and refractory stack 9b, which are constructed of a refractory brick, are provided with an incinerator 9 composed of a confined hydraulic pressure port, and an exhaust fan 10e is installed in connection with the drying furnace 10 in the stack 9a. In addition, the drying furnace 10 is a vegetable waste inflow hopper (10c), the cutting machine (10b) multi-stage drying stage (10d) is built-in and a hydraulic packaging machine is installed.

Hereinafter, the configuration of the present invention in detail in the accompanying drawings 1 as follows.

An input hopper (1) for storing food waste brought into bulk or small packaging and a crusher (2b) for crushing large contaminants without delay are cooperatively installed and passed through the crusher (2b) under the crusher (2b). A scrap bar conveyor (2c) for moving food waste without delay is installed in cooperation with the bottom of the casing, and a washing water spray nozzle (2g) is installed in the upper part of the casing, and shells, metals, glass pieces, etc. contained in food waste A sediment crushing separator (2) in which a cooperating screw (2d) and a cooperative screw is installed is installed.

A filter barrel, which is connected to the fine particle crushing separator (2) and has a rotary screen (3a) combined with a gap of 5 mm or less, is installed, and can contain a ring screw to loosen the blockage of blockage of the filter barrel and the impurities removed in association therewith. The filtration unit and the dehydration unit communicate with each other and a punching hole cylinder and an inner wood coarse matter processor 3 incorporating a screw in which a gap is cooperated are installed.

A first storage tank 4 for storing the separation liquid is installed and a pump 5 for transferring the separation liquid is installed. A flow rate adjusting tank (6) which is in communication with the pump (5) and adjusts the flow rate into the centrifuge (7) is connected with the centrifuge (7), and the centrifuge (7) is a concentrated horizontal ball, a concentrated tilt ball, and a dehydration slope. A gearbox in which a single-sided ball 7b consisting of a ball and a inner-screw 7c co-ordinated within a gap of 1 mm or less with the inner wall thereof are installed, coupled with the end of the single-sided ball 7b, and the reduction shaft is interlocked with the inner screw 7c axis. It consists of 7d and is installed.

The second storage tank (8) to temporarily store the separation liquid of the centrifuge (7) is installed, and the bottom is provided with an acid pipe to abandon the air supplied from the blower, and a pump to transfer the liquid to the sewage treatment plant is installed.

The screw conveyer 14, which transfers the food cake recovered from the centrifugal separator 7 and which has a mixing line to be mixed with manure cake, sawdust, masato and the like, is installed, and is connected to the horn connected to the barrail 11b. A fire 11c and a fermentation tank 11 in which a stack for distributing hot air from the bottom of the tank are installed.

As shown in FIG. 2, a screw conveyor and a cylinder 16a cooperated with the screw conveyor to transfer the dehydrated contaminants in the screw press of the contaminant processor 3 are installed, and the stack 9a enclosing the incinerator is enclosed. The tumble dryer 9b is connected to the heat exhaust stack 9b and the other end is provided with a tumble dryer 16 having an air blower 10e installed thereon.

The waste incinerator 9 in which the hydraulic hopper and the heat discharge stack 9b are placed in contact with the contaminant dryer 16 receives the condensate dried in the contaminant dryer 16.

In addition, the heat source of the blower 10e can be stored therein, the inflow hopper 10c for evenly introducing the imported vegetable waste and the cutting machine 10b for cutting the vegetable waste to a certain size are speeched and gradually transferred from the top to the bottom. The drying stage 10d is installed in a multi-stage stand-by screen conveyor, and a drying furnace 10 in which a screw conveyor is installed to recover dried vegetables is installed, and a deodorization tower 15 is installed to remove odors.

Referring to the operation of the embodiment of the present invention configured as described above is as follows.

When the food waste collected by the truck flows into the input hopper 1, the two-blade crushers 2b rotated with a large force are engaged with each other, and large contaminants are crushed to a certain size and poured to the bottom. At this time, the slab bar conveyor 2c cooperated with the bottom surface is moved forward, and the salt and organic matter of the contaminants are separated by the washing water sprayed from the washing water spray nozzle 2g on the upper casing.

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

They are transported forward to the scrubber conveyor (2c) and are deposited on the deposition cylinder (2d) to be removed by screwing out to the outside.

Food wastes that have been washed and removed from the sediment are introduced into the sewage disposal system (3), and crude sebaceous materials of 5 mm or more are removed by a filter tube composed of a rotary screen (3a), flowed into a cylinder, and a water content of 75% or less by a screw coordinated thereto. It is dewatered and sent 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 mechanical load operation and supplying quantitatively 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 a centrifuge. (7) flows quantitatively, 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, the solution is first concentrated to about 90% and then introduced into a second inclined ball having an inclination angle of 15 ° or less to sufficiently receive the centripetal force of the atmosphere and to recover a cake having 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 line mixed with the cake, sawdust, masato, etc. recovered during the manure pre-treatment process while being transferred to the screw conveyor due to the rather high moisture content and rapid decay. The hot air is supplied and the admixture 11c installed in the bare 11b gradually moves forward and backward while admixing so that the organic compost is made into a high quality organic compost through a ripening period of 15 days or more.

In Figure 2 the operation of one embodiment for the vegetable waste treatment will be described below.

Soybeans removed from food waste must be landfilled or incinerated in the following process.

When the landfill is landfilled, even though it is dehydrated, there is a substance that will leach leachate, and when it is incinerated, there is a problem of high cost due to water content.

Therefore, as an incinerator installed in the food waste treatment plant, the waste heat of the incinerator is incinerated and the waste heat of the incinerator which is 800 ° C. or higher is transferred to the incinerator (9). The heat passes through the stack 9a to be efficiently transferred to the punching cylinder 16a installed at the center thereof, and to sufficiently dry the contaminants slowly moved by the screw conveyor. The dried contaminants are introduced into the incinerator (9) and incinerated, and the internal heat of the furnace formed at this time of 800 ° C. or more is passed through the stack (9a) with a blower (10e) and then introduced into the drying furnace (10). The imported vegetable waste is kept evenly stacked in the inflow hopper 10c to prevent the internal heat loss of the drying furnace 10, and the vegetable waste is cut into a suitable amount of size with a cutter 10b to dry the belt conveyor at the top. When it enters the stage 10d, heat is transferred evenly by the Stanman wave screen, and it starts to dry slowly, and is gradually transferred to the lower stage from the drying stage 10d of the upper layer. Compressed and packaged to make feed for livestock.

As described in detail above, it is a known fact that food and vegetable 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 of incineration can be used in the drying process of vegetable trash, so that a large amount of vegetable trash can be processed in a low cost and simple process. Characteristic that can handle vegetable garbage, and is collected Vessels is to compost, the dried vegetable is characterized to recycling to the feed.

Claims (3)

Crushing and cleaning the large contaminants contained in the food waste in the sediment crushing separator while simultaneously removing the miscellaneous material such as shells, metals and glass; Dewatering and removing crude wood contaminants contained in the contaminant treatment unit, Recovering the organic matter contained in the separation solution by a centrifugal separator; The solids recovered in the centrifuge are mixed with manure cake, sawdust, masato and the like and aged in a fermenter to compost, Food waste recycling method characterized in that the separation of the centrifugal separator and the sewage treatment. Drying the condensate with waste heat formed in the incinerator from the condensate recovered and dehydrated in the condensate dryer: Using the waste heat obtained by incineration of the dried impurities in the incinerator as drying heat: Vegetable trash recycling method characterized in that the drying of the vegetable waste in the drying furnace to feed. A crush separator means comprising a crusher, a scrabbar, a sedimentation tank, and a screw conveyor to crush, clean, and remove large contaminants: Crude material removal means for dewatering and removing crude material by means of filters on rotary screens: Centrifuge means consisting of a concentrated ball and a dewatering ball and a screw in cooperation therewith for concentrating and dehydrating the non-filtration material: A tumble dryer means for drying the tumble to incinerator waste heat: Incinerator means for incineration of dried impurities to use their high heat as a drying means: Food and vegetable waste recycling apparatus comprising a drying furnace means using the waste heat of the incinerator.