KR20150144612A - Manufacturing method of solid fuel from food waste - Google Patents

Manufacturing method of solid fuel from food waste Download PDF

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Publication number
KR20150144612A
KR20150144612A KR1020140073667A KR20140073667A KR20150144612A KR 20150144612 A KR20150144612 A KR 20150144612A KR 1020140073667 A KR1020140073667 A KR 1020140073667A KR 20140073667 A KR20140073667 A KR 20140073667A KR 20150144612 A KR20150144612 A KR 20150144612A
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KR
South Korea
Prior art keywords
food waste
solid fuel
paste
molding
coal powder
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Application number
KR1020140073667A
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Korean (ko)
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황보인
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황보인
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Priority to KR1020140073667A priority Critical patent/KR20150144612A/en
Publication of KR20150144612A publication Critical patent/KR20150144612A/en

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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
    • C10L5/02—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
    • 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
    • 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
    • C10L2290/06—Heat exchange, direct or indirect
    • 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
    • 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
    • C10L2290/14—Injection, e.g. in a reactor or a fuel stream during fuel production
    • C10L2290/141—Injection, e.g. in a reactor or a fuel stream during fuel production of additive or catalyst
    • 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
    • C10L2290/32—Molding or moulds
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

The present invention relates to a method for manufacturing solid fuel using food waste, by reprocessing food waste with a large amount of moisture to form high energy solid fuel. The method includes: a collecting process, wherein food waste which contain a large amount of moisture and starch is collected into a chamber; a boiling process, wherein the collected food waste is boiled in a heating furnace and sterilized paste, containing high viscosity mucus composed of the starch contained in the food waste, is obtained; a mixing process, wherein the mucous paste formed by the boiling process is mixed with coke or coal powder to obtain dough of a viscous mixture formed by coke or coal powder; a molding process, wherein the viscous mixture is put into a press molder to mold the viscous mixture into a solid molded product by applying pressure; and a drying process, wherein the solid molded product is put into a drying furnace to form solid fuel.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing solid fuel using food waste,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a solid fuel using food waste, and more particularly to a method of manufacturing a solid fuel using food waste for re-treating food waste containing a large amount of moisture to form a high- .

Generally, food waste is a residue of food left by people, and it is a substance that causes bad odor within a few hours after collection and becomes a harmful substance due to invasion of germs. As a result, Due to changes in propensity and distribution structure, municipal waste is increasing rapidly.

The food waste can be selected as a method for disposing the landfill, such as a method of filling landfill, an incineration method of incineration, and a method of reusing it as a new resource.

First, in the case of the landfill treatment method, there is a problem in that the landfill site is economically burdened with a lot of public hygiene problems such as the occurrence of lipid pollution, harmful gas generation and water pollution in the landfill after the treatment, There is a problem in that air pollution occurs when incineration treatment is buried and incineration is incurred, and there is a problem that the kind of waste to be treated is limited.

In the case of the recycling treatment method, it is regarded as the best treatment method, but the possibility of recycling is determined according to the effect of the recycling.

In other words, it is important to determine the economical efficiency in terms of the cost of recycling process, and the occurrence of secondary environmental pollution in the process of recycling is important, and the recycling process is selected through a comprehensive analysis of the quality satisfaction of the final product by recycling .

The determination of treatment methods for such municipal waste can be selected according to the physical properties of the waste.

In particular, the food waste generated from the general foodstuff as waste is organic waste, which causes severe environmental pollution such as pollution of the water and odor due to corruption during landfilling. Food waste is incompletely buried Method.

However, the landfill disposal method is not economical, unsanitary, and non-environmental treatment methods such as odor and air pollution and water pollution due to gas generation due to landfill, change of surrounding soil after organic landfill, .

In addition, although some feeds or composts are being used as composts, they are reluctant to use the food waste as a compost because of the increased salinity in the soil, which hinders the growth of crops.

However, in order to feed the food waste, it is necessary to completely remove the foreign substances such as chopsticks and toothpicks contained in the food, and also to remove the food waste from the animal Have a poor meat quality and a peculiar smell, and thus have a limitation in not obtaining high quality meat, so they are avoiding their use in animal husbandry farms.

Therefore, there is a further need for a study on a method of using food waste as a main material of environmental pollution, which is convenient for human use, easy to handle, and capable of using food waste without problems such as odor and bacteria.

(Patent Document 1) KR10-0443899 B1

(Patent Document 2) KR10-0449517 B1

(Patent Document 3) KR10-0729816 B1

It is an object of the present invention, which is devised to solve the above-mentioned problems, to form a solid fuel having a high heat quantity through a simple reprocessing process of food wastes containing a large amount of moisture, And to provide a method for producing a solid fuel using food wastes which are capable of forming residual fuel and odorless solid fuel while maintaining stickiness.

The above object is achieved by the following constitutions provided in the present invention.

A method of manufacturing a solid fuel using food wastes according to the present invention includes:

A collection step of collecting food waste containing a large amount of water and starch in a chamfer;

A continuous process of adding the collected food waste to a heating furnace and then cutting it to obtain a paste containing high viscosity mucilage and sterilized by high temperature heating by starch contained in food waste;

A mixing step of adding and mixing a coke powder or a coal powder into a mucilage paste formed by the above-mentioned continuous process to obtain a viscous blend in a kneaded state with a coke powder or a coal powder;

A molding step of molding the viscous blend into a pressure molding machine to mold the viscous blend into a pressure-molded solid body; And

And a drying step of injecting the press-molded solid molding into a drying furnace to form a solid fuel.

Preferably, the mucilage paste formed by the above-mentioned continuous process has a water content of 70% to 90%, and the viscous blend formed by mixing the mucilage paste with the coke fraction or the coal ingredient has a function of 30% to 40% Lt; / RTI >

As described above, in the present invention, the food waste containing a large amount of starch is cut off for a long time to heat the starch contained in the food waste to form a mucositive paste, and the mushroom paste is used to produce a high- .

Therefore, the paste of mucus produced by the persistence of the food wastes can be formed into a press-molded product having shape stability by the mucilage produced by the heating of the starch and the solid fuel which is dried.

That is, in the present invention, the food waste itself is not converted into a solid fuel, but food waste is made into a ready-to-eat feed (paste), and the prepared feed is processed again to produce a solid fuel.

In particular, food waste containing a large amount of odors and bacteria due to continuous heating is sterilized at high temperature, so that the solid fuel formed thereby forms odorless and sterile conditions.

FIG. 1 is a flowchart showing an overall flow of a method for manufacturing solid fuel using food wastes, which is a preferred embodiment of the present invention,
FIG. 2 is a view showing a molding state of a press molded product through a molding process in a method of manufacturing solid fuel using food wastes as a preferred embodiment of the present invention.

Hereinafter, a method of manufacturing a solid fuel using food wastes as a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a flowchart showing a general flow of a method for manufacturing a solid fuel using food wastes, which is a preferred embodiment of the present invention. FIG. 2 is a flowchart showing a method for manufacturing a solid fuel using food wastes according to a preferred embodiment of the present invention. And shows a molding state of a press molded product through a molding process in a manufacturing method.

The present invention relates to a method of recycling a large amount of food waste collected by a food collection company to a solid fuel, and more particularly, to a method of forming a paste of a mucus by cutting food waste through continuous heating, The coal waste or the coke waste, or the coke waste and the mucilage paste are formed into solid fuel.

As shown in FIGS. 1 and 2, the method for manufacturing solid fuel using the food waste according to the present embodiment includes: a collection step of collecting food waste having a large amount of water and organic matter in the chamber; A continuous process of adding the collected food waste to a heating furnace and then cutting it to obtain a paste containing high viscosity mucilage and sterilized by high temperature heating by starch contained in food waste; A mixing step of adding and mixing a coke powder or a coal powder into the mucilage paste formed by the above-mentioned continuous process to obtain a viscous blend in which a mucilage paste, a coke powder or a coal powder is kneaded; A molding step of molding the viscous blend into a pressure molding machine to mold the viscous blend into a pressure-molded solid body; And a drying step of injecting the press-molded solid molding into an oven to form a solid fuel.

Preferably, the food waste collected by the collecting process is mixed with water and an organic matter including starch, and is further subjected to a crushing process as necessary to reduce the particle size of the food waste.

Then, the collected food waste is put into a heating furnace and then is continuously heated to form a mucilage paste having a moisture content of 90% to 70%.

In other words, in the present embodiment, the viscous material contained in the food waste is heat-treated to form a paste having high viscosity, without arbitrarily introducing a visor improving viscous property.

In the present invention, for example, the food waste is continuously kept at a temperature of 80 ° C to 100 ° C for about 30 minutes to 3 hours, so that the starch contained in the food waste is kept at high temperature by continuous high temperature heating and concentration.

Since the paste is subjected to heat treatment by a continuous process, it forms an aseptic state by high temperature sterilization by heat treatment, so that no smell is caused by bacteria.

In addition, the paste, which itself has high viscosity by the starch contained in the food waste, is cooled and then kneaded together with the coke powder or the coal powder to form a viscous blend of high viscosity.

The coke powder or the coal powder blended in the high viscosity paste to form a viscous compound has a high calorie content and a low water content.

In the present embodiment, the coke powder or coal powder having such characteristics is mixed with the paste having the water content of 70% to 90% by the above-mentioned continuous process at a weight ratio of 100: 100 to obtain a water content of 30% to 40% ≪ / RTI >

The compounding ratio can be increased or decreased according to the viscosity of the paste produced by the continuation of food waste.

The viscous formulation forms a sterile and odorless state in combination with a sterilized paste by continuous high-temperature heating, and has a stable tackiness due to the mucilage possessed by the paste.

Of course, it is also possible to add a binder to the paste in a supplementary manner, if necessary, so as to have more improved tackiness.

The final viscous compound obtained through the continuous process and the compounding process is formed into a solid product such as pellets or briquettes through a continuous process and then introduced into a drying furnace through a drying process to obtain a product having a moisture content of 5% to 15% To form solid fuel.

The molding process of the solid molding is usually performed through a press molding apparatus such as a pellet molding apparatus, an extrusion molding apparatus, or a press molding apparatus.

In this embodiment, in forming the briquette-shaped solid molding through the press molding apparatus, a reticulated support is inserted into the viscous formulation forming the solid molding as shown in Figs. 2 (c) and 3, So that the viscous compound (P) constituting it is pressed and formed in a more stable fixed state to the support (B) of the network.

At this time, a nipping piece B 'is formed at the end of the reticulated support B to which the viscous compound P is fixed, and the solid fuel which is formed and dried by the viscous compound P during the use, By allowing the nip piece (B ') to protrude, the operator does not grip the solid fuel as a whole, and allows the solid fuel to be easily grasped through the projecting nip piece (B').

2 (c) and Fig. 3, high-pressure compressed air (g) is forcedly injected into the viscous compound (P) injected into the molding space of the mold, A plurality of pores are formed in the molded solid molding by compressed air (g).

When a plurality of pores are formed in the solid fuel as described above, it is possible to dry rapidly in the drying process and ensure smooth air permeability in the course of use, so that stable ignition and combustion are possible.

The final molded solid fuel has a high calorific value due to the organic matter, coke powder or coal powder contained in the food waste, and the food waste forming the solid fuel is sterilized by heating at high temperature. It can be used as odorless high efficiency fuel.

Claims (3)

A collection step of collecting food waste containing a large amount of water and starch in a chamfer;
A continuous process of adding the collected food waste to a heating furnace and then cutting it to obtain a paste containing high viscosity mucilage and sterilized by high temperature heating by starch contained in food waste;
A mixing step of adding and mixing a coke powder or a coal powder into a mucilage paste formed by the above-mentioned continuous process to obtain a viscous blend in a kneaded state with a coke powder or a coal powder;
A molding step of molding the viscous blend into a pressure molding machine to mold the viscous blend into a pressure-molded solid body; And
And a drying step of injecting the press-molded solid molding into a drying furnace to form a solid fuel. The method of claim 1, wherein the mucoadhesive paste formed by the continuous process has a water content of 70% to 90%. The method for producing a solid fuel using food waste according to claim 1, wherein the viscous blend formed by mixing the mucilage paste with coke powder or coal powder has a moisture content of 30% to 40%.
KR1020140073667A 2014-06-17 2014-06-17 Manufacturing method of solid fuel from food waste KR20150144612A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102567554B1 (en) 2023-02-24 2023-08-21 주식회사 한화그린 A method of manufacturing solid energy fuel using the method of adding livestock sludge or slaughter sludge to food refuse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102567554B1 (en) 2023-02-24 2023-08-21 주식회사 한화그린 A method of manufacturing solid energy fuel using the method of adding livestock sludge or slaughter sludge to food refuse

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