KR20130034554A - Support fuel - Google Patents
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- KR20130034554A KR20130034554A KR1020110098642A KR20110098642A KR20130034554A KR 20130034554 A KR20130034554 A KR 20130034554A KR 1020110098642 A KR1020110098642 A KR 1020110098642A KR 20110098642 A KR20110098642 A KR 20110098642A KR 20130034554 A KR20130034554 A KR 20130034554A
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- food waste
- drying
- hot air
- extrusion
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- 239000000446 fuel Substances 0.000 title claims abstract description 20
- 239000010794 food waste Substances 0.000 claims abstract description 50
- 238000001035 drying Methods 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000008188 pellet Substances 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000000227 grinding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 4
- 238000007711 solidification Methods 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract description 3
- 239000002803 fossil fuel Substances 0.000 abstract description 2
- 238000010298 pulverizing process Methods 0.000 abstract 3
- 238000001125 extrusion Methods 0.000 abstract 2
- 239000004449 solid propellant Substances 0.000 description 12
- 239000010791 domestic waste Substances 0.000 description 10
- 239000000047 product Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002361 compost Substances 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010169 landfilling Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 238000003898 horticulture Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/34—Other details of the shaped fuels, e.g. briquettes
- C10L5/36—Shape
- C10L5/363—Pellets or granulates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/08—Drying or removing water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/10—Waste collection, transportation, transfer or storage, e.g. segregated refuse collecting, electric or hybrid propulsion
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- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Processing Of Solid Wastes (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
Description
본 발명은 음식물쓰레기를 이용한 고형화 보조연료의 제조방법에 관한 것으로, 더욱 구체적으로는 가정·아파트·음식점·호텔 등에서 배출되는 음식물쓰레기를 효율적으로 재활용하는 방안의 하나로 음식물쓰레기를 수거하여 파쇄 및 탈수를 수행하고 펠릿 형태로 성형한 후 열풍과 냉풍 및 자연건조에 의해 고형화 보조연료를 제조함으로써, 음식물쓰레기로 인한 환경문제를 해소하고 고품위의 대체에너지를 생산하여 국가 에너지난 해결에 기여할 수 있도록 한 음식물쓰레기를 이용한 고형화 보조연료의 제조방법에 관한 것이다.The present invention relates to a manufacturing method of the solidified auxiliary fuel using food waste, and more specifically, as a way to efficiently recycle food waste discharged from homes, apartments, restaurants, hotels, etc. Food waste that has been formed and formed into pellets and manufactured solid fuels by hot air, cold air, and natural drying to solve environmental problems caused by food waste and produce high-quality alternative energy to contribute to solving national energy shortages. It relates to a method for producing a solidified auxiliary fuel using.
음식물쓰레기는 총 생활폐기물의 30%이상을 차지하고 있을 뿐만 아니라, 물기가 많고 쉽게 부패되어 매립과 소각처리에 어려움을 초래하여 2005년도부터는 직매립을 금지하고 소각처리하거나 재활용을 하도록 폐기물관리법에서 규정하고 있으며 자치단체별로 다양한 처리방법을 도입하여 재활용을 시도하고 있으나 경제성과 대량처리가 가능한 처리방법이 개발되지 못하고 있는 실정이다.Food waste not only accounts for more than 30% of total household waste, but also has a lot of water and is easily decayed, which causes difficulties in landfilling and incineration.In 2005, the Waste Management Act banned direct landfilling and incinerated or recycled. In addition, various municipal governments have tried to recycle by introducing various treatment methods, but economical and mass treatment methods have not been developed.
음식물쓰레기의 재활용은 주로 퇴비화나 건조 사료화 및 액상사료화방법이 개발, 보급되고 있으나 퇴비화는 제조공정상 악취가 발생되고 염분농도가 높으며 생산성이 낮아 처리에 따른 경제성이 없으며 건조 사료화는 혼합사료비용과 건조비용이 과다하고 사용처가 제한되어 있으며 액상 사료화는 사료유통 및 사료로서의 안전성에 문제를 안고 있다.Recycling of food waste is mainly composting, dry feed and liquid feed methods are developed and spread, but composting produces bad smell in manufacturing process, high salinity, low productivity and low economic efficiency. This overuse and limited use make liquid feeding a problem for feed distribution and safety as feed.
이에 따라 음식물쓰레기의 안정적인 대량처리가 가능하고 대체 에너지로서 부가가치를 높일 수 있는 고형화 연료화방법을 고안하게 되었다.Accordingly, it has been possible to devise a solidification fuelization method that enables stable mass processing of food waste and increases added value as an alternative energy.
음식물쓰레기는 85%이상의 수분을 함유하고 쉽게 부패되어 재활용이 어려운 물질이나 고열량의 유기성물질로 구성되어 있는 물질적 특성을 감안할 때 퇴비나 사료로서의 재활용보다 연료로서의 이용가치가 높은 물질이며 그 동안 재활용 상에 나타난 문제점을 동시에 해결 가능하다.Food wastes contain more than 85% of moisture and are easily decayed and difficult to recycle, or considering the material characteristics of high-calorie organic materials, they are more valuable as fuels than compost or feed. The problems shown can be solved at the same time.
이와 같은 문제점을 해결하기 위하여, 최근에 연료로의 재활용 차원에서 음식물쓰레기를 단순 파쇄·탈수 및 성형하여 연료화하는 여러가지 사례가 발표되었다.In order to solve these problems, recently, various cases of fueling food wastes by simply crushing, dehydrating and forming them in order to recycle them into fuel have been published.
그러나 그러한 기술들은 연료로서의 물리적 최적조건을 갖추도록 하기 위한 음식물쓰레기 파쇄 및 탈수방법, 균질한 품질 및 고발열량 확보를 위한 석탄 등 연료물질 혼합기술, 성형 및 건조기술 등이 미비하여 연료로서의 상용화가 어려운 실정에 있다.However, such technologies are difficult to commercialize as fuel due to the lack of food waste crushing and dehydration methods to ensure physical optimum conditions as fuels, mixing of fuel materials such as coal to secure homogeneous quality and high calorific value, and forming and drying technologies. There is a situation.
또한, 통상적인 일반쓰레기를 이용한 고체연료 제조방법은, 생활 폐기물을 투입부에 공급하는 단계,In addition, the conventional solid fuel manufacturing method using the general waste, the step of supplying household waste into the input,
전자석을 이용하여 투입부 내의 생활 폐기물로부터 철을 분리하는 단계,Separating iron from household waste in the input unit using an electromagnet,
파쇄기를 이용하여 철금속이 분리된 생활 폐기물을 순차적으로 파쇄하는 단계,Sequentially crushing household waste from which ferrous metals have been separated using a crusher,
파쇄된 생활 폐기물을 가열 압축기를 이용하여 가열 및 압축하여 생활 폐기물의 함수율을 균일하게 하는 단계,Heating and compressing the crushed household waste using a heating compressor to make the moisture content of the household waste uniform;
함수율이 균일화된 생활 폐기물을 순차적으로 재차 파쇄하는 단계,Sequentially crushing the domestic waste with a uniform water content,
재차 파쇄된 생활 폐기물을 비산절단형 회전건조기 및 비산절단 어셈블리에 의해서 미세하게 절단함과 동시에 건조하는 단계,Again cutting the crushed household waste finely by the scattering type rotary dryer and the scattering assembly and drying at the same time,
절단 건조된 생활 폐기물에 중화제를 투입하는 단계,Injecting a neutralizer into the chopped and dry household waste,
중화제와 혼합된 생활 폐기물을 가열 압축하여 소정 형상의 고체연료로 성형하는 단계가 순차적으로 연결되는 방식으로 구성된다.The step of heating and compressing the domestic waste mixed with the neutralizing agent to form a solid fuel having a predetermined shape is configured in such a manner as to be sequentially connected.
그런데, 상기한 일반쓰레기 고체연료 제조방법에 사용되는 설비들은 비교적 고가의 장비로 구성되기 때문에, 고체연료의 제조단가가 높다는 문제점이 있다.However, since the equipment used in the above-mentioned general waste solid fuel manufacturing method is composed of relatively expensive equipment, there is a problem that the manufacturing cost of the solid fuel is high.
따라서, 본 발명의 목적은 상기한 문제점을 해결하기 위해 안출된 것으로서, 환경오염을 방지할 수 있고 화석연료를 대체할 수 있는 에너지원으로서 음식물쓰레기를 활용하기 위한 음식물쓰레기를 이용한 고형화 보조연료의 제조방법을 제공하는 데 있다.Accordingly, an object of the present invention is to solve the above problems, the production of a solidified auxiliary fuel using food waste to utilize the food waste as an energy source that can prevent environmental pollution and replace fossil fuels To provide a way.
상기와 같은 목적을 달성하기 위하여, 본 발명에 따른 음식물쓰레기를 이용한 고형화 보조연료의 제조방법은,In order to achieve the above object, the manufacturing method of the solidified auxiliary fuel using the food waste according to the present invention,
음식물쓰레기를 수거하여 선별기로 선별하는 단계;Collecting food waste and sorting by a sorter;
선별된 음식물쓰레기를 파쇄기를 통해 10～20mm 정도로 파쇄하는 단계;Crushing the selected food waste to about 10-20 mm through a crusher;
파쇄된 음식물쓰레기를 원심분리형 탈수기에 투입하여 수분함수량이 40%이하가 되도록 탈수하는 단계;Dewatering the crushed food waste into a centrifugal dehydrator so that the water content is 40% or less;
탈수한 음식물쓰레기를 다시 3～5mm 정도로 분쇄하는 단계;Grinding the dehydrated food waste back to about 3 to 5 mm;
상기의 탈수하여 분쇄한 음식물쓰레기를 펠릿압출기에 투입하여 압출 성형하는 단계;Inserting the dehydrated and crushed food waste into a pellet extruder and extruding;
압출성형물을 절단하면서 고형화하여 이송용 망 컨베이어로 이송하는 단계;Solidifying the extrudate while cutting and transferring the extrudate to a conveying net conveyor;
상기의 고형화되어 이송용 망 컨베이어로 이송되는 제품을 열풍기로부터의 80～100℃ 정도의 열풍으로 1차 건조하는 단계;Firstly drying the solidified product transferred to a transporting network conveyor with hot air of about 80 to 100 ° C. from a hot air fan;
상기의 열풍에 의해 건조한 고형화된 제품을 다시 열풍에 비해 상대적으로 냉풍인 상온의 공기를 팬으로 불어주어 2차 건조하는 단계;Second drying the solidified product dried by the hot air again by blowing air of a room temperature, which is relatively cold compared to the hot air, with a fan;
상기의 냉풍에 의해 건조한 고형화된 제품을 자연건조하는 단계를 포함한다.And naturally drying the solidified product dried by the cold air.
상기에 언급된 바와 같이, 본 발명에 따라 음식물쓰레기를 주원료로 이용하여 고형화 보조연료를 제조함으로써, 환경친화적인 음식물쓰레기 처리가 가능하여 대량처리가 용이하고, 3000～3500Kcal의 열량으로 경제성을 갖춘 보조연료로서 각종 원예 및 채소 재배용 보일러, 가정용 보일러, 각종 산업용 고체연료 보일러, 열병합 또는 화력 발전소의 고체연료 대체품으로 사용 가능한 효과를 거둘 수 있다.As mentioned above, by producing a solidified auxiliary fuel using the food waste as the main raw material according to the present invention, it is possible to process environmentally friendly food waste, easy to bulk processing, economically assisted with economical efficiency of 3000 ~ 3500Kcal calories As a fuel, it can be used as a substitute for solid fuel in various horticulture and vegetable growing boilers, domestic boilers, various industrial solid fuel boilers, cogeneration or thermal power plants.
또한, 본 발명의 제조방법에 따른 고체연료는 연소중에도 악취나 대기오염의 우려가 없는 것이 특징이며, 타고난 부산물은 다시 퇴비로 사용할 수 있어 원예농가, 축사 또는 계사 등의 에너지 절약에 큰 보탬이 될 수 있고 저연비로 고부가가치를 얻을 수 있는 것이다.In addition, the solid fuel according to the production method of the present invention is characterized by no risk of odor or air pollution during combustion, and by-products can be used as compost again, which will be a great help to save energy in horticultural farms, barns or cages. It can achieve high added value with low fuel economy.
한편, 상기에서는 본 발명의 바람직한 실시예들을 참조하여 설명하였지만, 해당 기술분야에서 통상의 지식을 가진 자라면 하기의 청구의 범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.On the other hand, while the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention described in the claims below It will be understood that modifications and changes can be made.
도 1은 본 발명에 따른 음식물쓰레기를 이용한 고체연료의 제조공정을 도시한 흐름도.1 is a flow chart illustrating a manufacturing process of a solid fuel using food waste according to the present invention.
이하, 본 발명에 따른 음식물쓰레기를 이용한 고체연료의 제조방법에 대해 상세히 설명한다.Hereinafter, a method for producing a solid fuel using food waste according to the present invention will be described in detail.
도 1은 본 발명에 따른 음식물쓰레기를 이용한 고체연료의 제조공정을 도시한 흐름도이다.1 is a flowchart illustrating a manufacturing process of a solid fuel using food waste according to the present invention.
도 1에 도시된 바와 같이, 본 발명에 따른 음식물쓰레기를 이용한 고형화 보조연료의 제조방법은,As shown in Figure 1, the manufacturing method of the solidified auxiliary fuel using the food waste according to the present invention,
음식물쓰레기를 수거하여 선별기로 선별하는 단계;Collecting food waste and sorting by a sorter;
선별된 음식물쓰레기를 파쇄기를 통해 10～20mm 정도로 파쇄하는 단계;Crushing the selected food waste to about 10-20 mm through a crusher;
파쇄된 음식물쓰레기를 원심분리형 탈수기에 투입하여 수분함수량이 40%이하가 되도록 탈수하는 단계;Dewatering the crushed food waste into a centrifugal dehydrator so that the water content is 40% or less;
탈수한 음식물쓰레기를 다시 3～5mm 정도로 분쇄하는 단계;Grinding the dehydrated food waste to about 3 to 5 mm;
상기의 탈수하여 분쇄한 음식물쓰레기를 펠릿압출기에 투입하여 압출 성형하는 단계;Inserting the dehydrated and crushed food waste into a pellet extruder and extruding;
압출성형물을 절단하면서 고형화하여 이송용 망 컨베이어로 이송하는 단계;Solidifying the extrudate while cutting and transferring the extrudate to a conveying net conveyor;
상기의 고형화되어 이송용 망 컨베이어로 이송되는 제품을 열풍기로부터의 80～100℃ 정도의 열풍으로 1차 건조하는 단계;Firstly drying the solidified product transferred to a transporting network conveyor with hot air of about 80 to 100 ° C. from a hot air fan;
상기의 열풍에 의해 건조한 고형화된 제품을 다시 열풍에 비해 상대적으로 냉풍인 상온의 공기를 팬으로 불어주어 2차 건조하는 단계;Second drying the solidified product dried by the hot air again by blowing air of a room temperature, which is relatively cold compared to the hot air, with a fan;
상기의 냉풍에 의해 건조한 고형화된 제품을 자연건조하는 단계Naturally drying the dried solidified product by the cold wind
이렇게 해서 제조된 고체연료는 3000～3500Kcal 정도의 열량을 갖고 300℃이상의 열이 발생하기 때문에 보조연료로서의 기능을 충분히 할 수 있는 것이다.The solid fuel thus produced has a calorific value of about 3000 to 3500 Kcal and generates heat of 300 ° C. or more, thus functioning as a secondary fuel.
본 발명에 따른 보조연료의 제조방법에 대해 단계별로 보다 구체적으로 설명하면 다음과 같다.If more specifically described step by step for the manufacturing method of the auxiliary fuel according to the present invention.
먼저, 음식물쓰레기를 수거하여 선별기로 선별한다.First, food waste is collected and sorted by a sorter.
선별된 음식물쓰레기를 파쇄기를 통해 10～20mm 정도로 파쇄한다.Crush the selected food waste to about 10 ~ 20mm through shredder.
파쇄된 음식물쓰레기를 원심분리형 탈수기에 투입하여 수분함수량이 40%이하가 되도록 탈수한다.The crushed food waste is introduced into a centrifugal dehydrator to dehydrate so that the water content is less than 40%.
탈수한 음식물쓰레기를 다시 3～5mm 정도로 분쇄한다.Crush the dehydrated food waste to 3 ~ 5mm again.
상기의 탈수하여 분쇄한 음식물쓰레기를 일반적인 펠릿압출기에 투입하여 3～5Kg/m3의 압력으로 압출 성형한다.The dehydrated and crushed food waste is introduced into a general pellet extruder and extruded at a pressure of 3 to 5 kg / m 3 .
압출성형물을 절단하면서 고형화하여 이송용 망 컨베이어로 이송한다.The extrudate is solidified while being cut and transferred to a conveying net conveyor.
상기의 고형화되어 이송용 망 컨베이어로 이송되는 제품을 열풍기로부터의 80～100℃ 정도의 열풍으로 1차 건조한다.The product which is solidified and conveyed to a conveying net conveyor is first dried by hot air of about 80 to 100 ° C. from a hot air fan.
상기의 열풍에 의해 건조한 고형화된 제품을 다시 열풍에 비해 상대적으로 냉풍인 상온의 공기를 팬으로 불어주어 2차 건조한다.The solidified product dried by the hot air again blows air at room temperature, which is relatively cold compared to the hot air, with a fan and is then dried secondly.
그리고 다시 상기의 냉풍에 의해 건조한 고형화된 제품을 자연건조하면서 3000～3500Kcal 정도의 열량을 갖고 300℃이상의 열이 발생하는 보조연료를 제조하게 된다.Then, while drying the solidified product dried by the cold air naturally, the auxiliary fuel having heat of 3000 ~ 3500Kcal and generating heat of 300 ℃ or more is produced.
Claims (1)
선별된 음식물쓰레기를 파쇄기를 통해 10～20mm 정도로 파쇄하는 단계;
파쇄된 음식물쓰레기를 원심분리형 탈수기에 투입하여 수분함수량이 40%이하가 되도록 탈수하는 단계;
탈수한 음식물쓰레기를 다시 3～5mm 정도로 분쇄하는 단계;
상기의 탈수하여 분쇄한 음식물쓰레기를 펠릿압출기에 투입하여 압출 성형하는 단계;
압출성형물을 절단하면서 고형화하여 이송용 망 컨베이어로 이송하는 단계;
상기의 고형화되어 이송용 망 컨베이어로 이송되는 제품을 열풍기로부터의 80～100℃ 정도의 열풍으로 1차 건조하는 단계;
상기의 열풍에 의해 건조한 고형화된 제품을 다시 열풍에 비해 상대적으로 냉풍인 상온의 공기를 팬으로 불어주어 2차 건조하는 단계;
상기의 냉풍에 의해 건조한 고형화된 제품을 자연건조하는 단계를 포함하는 것을 특징으로 하는 음식물쓰레기를 이용한 고형화 보조연료의 제조방법.Collecting food waste and sorting by a sorter;
Crushing the selected food waste to about 10-20 mm through a crusher;
Dewatering the crushed food waste into a centrifugal dehydrator so that the water content is 40% or less;
Grinding the dehydrated food waste to about 3 to 5 mm;
Inserting the dehydrated and crushed food waste into a pellet extruder and extruding;
Solidifying the extrudate while cutting and transferring the extrudate to a conveying net conveyor;
Firstly drying the solidified product transferred to a transporting network conveyor with hot air of about 80 to 100 ° C. from a hot air fan;
Second drying the solidified product dried by the hot air again by blowing air of a room temperature, which is relatively cold compared to the hot air, with a fan;
Method for producing a solidified auxiliary fuel using food waste, comprising the step of naturally drying the solidified product dried by the cold air.
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