JP2009167254A - Solid fuel, and method for production - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solid fuel having advantages that the insufficient calorific value required of a solid fuel due to lowering of the calorific value by an incombustible material or a low-combustible material contained therein is more prevented, and to provide a method for producing the solid fuel. <P>SOLUTION: The solid fuel comprises a combustible liquid (a liquid waste) and a solid material (a solid waste). The solid material comprises at least one of the incombustible material and the low-combustible material, and a combustible material. The method for producing the solid fuel is provided. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a solid fuel and a method for producing the solid fuel.

  Waste discharged from various offices has a calorific value such as liquid flammable waste such as waste oil and waste paint, wood waste, textile waste, waste toner, waste plastic powder, etc., and can be used as fuel Although many wastes are discharged, many attempts have been made to recycle these combustible wastes as fuel.

  For example, attempts to recycle flammable waste made of flammable liquid as liquid fuel have been made in Patent Document 1, Patent Document 2, and the like. However, the liquid wastes described in these documents often contain water and oil, and the water and oil are emulsified to make a uniform liquid fuel, but the water and oil are separated during storage. Cannot be completely prevented.

  Therefore, it is conceivable to use solid combustible waste as solid fuel. RDF (Refuse Delivered Fuel) is well known as a technique for using combustible waste as a solid fuel. RDF is a solid fuel obtained by crushing combustible waste such as municipal waste and compressing it by adding lime or cement as a binding material. Cement and lime are added not only as a binder but also for the purpose of removing moisture and preventing spoilage due to high pH, but it cannot be said that they are working sufficiently. RDF is fermented in the storage tank, and the heat of fermentation is excessive. It may accumulate.

As a method for preventing corruption and reducing odor, the following Patent Document 3 is a method of adding a zeolite and a carbonaceous material, the following Patent Document 4 is a method of forming at a high temperature using a special cement, and Patent Document 5 is a method of adding fly ash and quick lime. Proposed method.
JP 2001-329276 A JP-A-7-166178 JP 2001-49271 A Japanese Patent Laid-Open No. 11-302673 JP-A-8-269471

  However, when the solid material combustible waste described in Patent Documents 3 to 5 is used as a solid fuel, the solid material combustible waste is composed of at least one of a non-combustible material and a low-flammable material and a combustible material. The amount of heat generated is reduced by the amount of non-combustible substances and low-flammable substances, and the required amount of heat generated by the solid fuel may be insufficient.

  If it is a liquid fuel made of flammable waste made of a flammable liquid such as the above-mentioned Patent Documents 1 and 2, it is difficult to contain non-flammable substances and low-flammable substances, the calorific value is reduced, The problem that the amount of generated heat is insufficient is unlikely to occur. However, as described above, the liquid fuel may be difficult to use because the oil and water contained during storage are separated.

  In addition, it cannot be said that all of the anti-corruption and odor reduction methods described in Patent Documents 3 to 5 described above when solid combustible waste is used as a solid fuel have achieved their objectives sufficiently. Furthermore, in these documents, compression molding is performed, which may increase the RDF manufacturing cost. In this way, solid fuels are spoiled due to moisture contained in them, have strong odors, and are often fuels that may accumulate excessive heat due to heat of fermentation. There is.

  The present invention has been made in view of solving at least one of the above-mentioned problems, and in particular, the amount of heat generation is reduced by the amount of non-combustible substances and low-flammable substances, and the required heat generation of solid fuel. The main object of the present invention is to provide a solid fuel or a method for producing a solid fuel that has an advantage of preventing the amount from being insufficient.

  The present invention includes a flammable liquid and a solid material, and the solid material is a solid fuel including at least one of a non-flammable material and a low-flammability material and a flammable material. .

  The solid fuel is preferably formed by granulating the combustible liquid and the solid substance with a granulated substance.

  In the solid fuel, the granulated material is preferably a resin.

  In the solid fuel, it is preferable that at least one of the combustible liquid and the solid substance is waste.

  In the solid fuel, it is preferable that both the combustible liquid and the solid substance are waste.

  It is preferable that the solid fuel further includes at least one of wood waste and fiber waste.

  It is preferable that the surface of the solid fuel is coated with at least one of fine powder, cement, and sludge.

  The solid fuel preferably has a calorific value of 3000 cal / g or more and a chlorine content of 3000 ppm or less.

  The solid fuel is preferably used as a fuel for cement production.

  The present invention also includes a combustible liquid, a solid material comprising at least one of an incombustible material and a low-flammability material, and a combustible material, and the mixture is granulated with a granulating material. The manufacturing method of the solid fuel which becomes.

  In the method for producing the solid fuel, it is preferable that the solid material includes a resin and the resin is used as a granulated material.

  In the method for producing the solid fuel, it is preferable that at least one of wood waste and fiber waste is added and mixed, and the mixture is granulated with a granulating substance.

  In the method for producing the solid fuel, it is preferable that the distribution of the mixture is determined so that at least one of the calorific value and the chlorine content falls within a predetermined range.

  In the method for producing the solid fuel, it is preferable that the mixing is performed in a container, and the substance to be mixed is measured by a meter installed in the container.

  In the method for producing the solid fuel, it is preferable that the substance to be mixed contains waste.

  Providing a solid fuel or solid fuel manufacturing method that has the advantage of preventing the calorific value of the solid fuel from decreasing due to the inclusion of non-flammable substances and low-flammable substances, and preventing the calorific value of the required solid fuel from becoming insufficient it can.

  This inventor earnestly examined the solid fuel containing the solid substance containing at least one of the nonflammable substance and the low-flammable substance such as being composed of two or more kinds of materials. As a result, even if it is physically and economically difficult to separate non-flammable or low-flammable materials from flammable materials, surprisingly add not only such solid materials but also flammable liquids The high calorific value of the flammable liquid supplements the calorific value of the incombustible or low-flammable material, and the amount of calorific value of the solid fuel that is required is prevented from becoming insufficient. The present inventors have found that it is possible to achieve the present invention.

  The present inventor has also found that the solid fuel is preferably formed by granulating the combustible liquid and the solid substance with a granulated substance. The flammable liquid and the solid substance are wrapped and granulated to facilitate handling. Furthermore, it has been found that this granulated material is preferable because it is less likely to reduce the calorific value of the entire solid fuel than a cement or the like.

  The present inventor has also found that the solid fuel is preferably such that at least one of the combustible liquid and the solid substance is waste. This is because it is useful for the reuse of some sort of waste. Furthermore, it has been found that the solid fuel is more preferable from the viewpoint of waste reuse when both the combustible liquid and the solid substance are waste.

  Further, the present inventor has found that the solid fuel preferably further contains at least one of wood waste and fiber waste. Wood and fiber scraps adsorb and absorb flammable liquids and granulated substances, and serve as nuclei that contribute to stronger solid fuel integration in solid fuels.

  The present inventor has also found that the surface of the solid fuel is preferably coated with at least one of toner, fine powdered substances such as ash, cement and sludge. When the solid fuel surface before coating is highly sticky, it is possible to suppress stickiness and improve handling properties such as storage and transportation.

  Further, the present inventor has found that the solid fuel preferably has a calorific value of 3000 cal / g or more and a chlorine content of 3000 ppm or less. The distribution of the mixture is determined so that the calorific value and the chlorine content are within a predetermined range. A large calorific value and a low chlorine content are likely to be required when used as fuel. Such a solid fuel is preferably used as a fuel for cement production, for example.

  In the method for producing the solid fuel, it is preferable that the mixing is performed in a container, and the substance to be mixed is measured by a meter installed in the container. By mixing and weighing in the same container, the process can be unified and reduced. In particular, when the substance to be mixed such as combustible liquid, solid substance, and granulated substance such as resin is sticky, if the measuring container and the mixing container are separate, it will stick to the measuring container and it will be complicated to handle. Cheap.

  In addition, the present inventors knead flammable liquid waste alone or mixture such as waste paint, waste ink, waste grease, etc. and solid waste such as waste plastic ground, wood waste, waste toner, etc. Finding a manufacturing method that uses the resin content contained in the solvent or water, or the resin content emulsified in water as a dispersoid of the emulsion, as a binder for solid waste or pulverized material, and performing compression molding that requires manufacturing costs The inventors found that it can be granulated without necessity, and obtained a method for producing a solid fuel. By applying a mixture of cement and sludge to the surface of the granulated material, the adhesiveness of the surface can be suppressed, and handling properties such as storage and transportation can be improved.

  The solid fuel and the method for producing the solid fuel according to this embodiment will be described below. In addition, this embodiment is only one form for implementing this invention, and this invention is not limited by this embodiment. As a preferred example, a combustible liquid is combustible liquid waste, a solid material is solid waste, a solid fuel granulated with resin contained in the waste as a granulated material from the beginning, and a method for producing the same To do. You may use independently and may use it combining several types.

  The combustible liquid waste and solid waste used in the present embodiment are a group selected from one or more of waste oil, waste plastic, wood waste, fiber waste, animal and vegetable residues, rice bran, mineral waste, dust, sludge, etc. It is not limited to.

  Combustible liquid waste such as waste paint and waste ink and solid waste such as wood waste, fiber waste, waste plastic, waste toner, etc. Liquid waste is adsorbed on the surface of solid waste such as wood waste, fiber waste, waste plastic, waste toner, etc. or its pulverized product and loses its fluidity, and waste (especially liquid waste) The resin component dissolved in the contained solvent becomes a binder, and solid waste or a pulverized product thereof is adhered to form a granule. If some stickiness remains on the surface after being granulated, it is preferable to suppress the stickiness by applying a fine powdery solid waste such as waste toner or EP ash to the surface.

  Further, in order to further eliminate the stickiness, a mixture obtained by previously kneading cement and sludge is added and kneaded and applied to the surface of the solid fuel. As shown in FIG. 1, a solid fuel having a two-layer structure in which a cement / sludge mixture is applied to the surface layer is formed. In the cement and sludge kneaded material formed as the surface layer, the moisture contained in the sludge causes a hydration reaction with the cement, and solidifies with time and loses its adhesiveness. Sludge and cement may be used alone or in combination.

  Examples of the flammable liquid waste (flammable liquid) used in the present embodiment include waste paint, waste ink, waste varnish, waste adhesive, waste tar and pitch. These wastes have a calorific value of about 2000 to 10000 cal / g and further contain a binder resin dissolved in a solvent, so that they can be suitably used in the present invention. Waste kerosene, waste volatile oil, waste solvent, engine oil, machine oil, compressor oil, hydraulic oil, gear oil, motor oil, insulation oil, rolling oil, quenching oil, cutting oil, waste grease, heavy oil, crude oil, waste animal oil Waste oils such as waste vegetable oil, head, lard, etc. contain almost no resin, but because they have a high calorific value, the liquid combustible waste containing the resin, or waste containing a resin soluble in these waste oils Can be used in combination. These waste oils having a calorific value of 2000 cal / g or more can be suitably used in the present invention. In the present invention, combustible liquid waste includes fluid waste such as waste oil and gel-like waste such as waste ink, waste grease, and organic sludge.

  The solid waste (solid substance) used in this embodiment is waste activated carbon, phenol resin, urea resin, epoxy resin, melamine resin, urethane resin, vinyl chloride resin, vinylidene chloride resin, polystyrene resin, polyethylene resin, polypropylene resin, Waste plastics such as nylon resin, polyester resin, so-called waste plastics such as solid waste paint, waste tires, rubber scraps such as natural rubber scraps, ebonite scraps, wood scraps, sawdust, irrigation, barks (bark), bamboo, veneer, Examples thereof include crushed materials such as veneer boards, and textile waste such as tatami waste, wool, cotton, silk, and hemp. Solid flammable waste is used after its particle size is pulverized to 10 mm or less. Of the solid waste, the waste having a calorific value of 2000 cal / g or more can be suitably used as the solid waste of the present invention.

  The resin used as the granulating material in this embodiment is epoxy resin, urethane resin, saturated / unsaturated polyester resin, polystyrene, polyamide, phenol resin, ketone resin, acrylic resin, vinyl resin, chloroprene rubber, hydrocarbon resin, vinyl acetate. Examples thereof include water-soluble natural resins such as resins, polyvinyl alcohol, styrene butadiene copolymers, carboxymethyl cellulose, starch, and guar gum.

  When these resins are dissolved in solvents such as toluene, hexane, butyl acetate and water as the main component of waste paint, waste ink, waste varnish and waste adhesive, or solid resins not containing solvent are used. Is used in combination with waste solvents and waste water containing toluene, hexane, butyl acetate, water, etc. In addition, a resin that does not dissolve in water and is dispersed as an emulsion dispersoid can be used as a binder for the solid waste of the present invention, such as a resin used for forming a coating film of an aqueous paint. These resins used as binders may be used alone or in combination of a plurality of types.

  Among solid wastes, wood waste and tatami waste generally have a calorific value of 3000 to 4000 cal / g, and their properties are porous, and the amount of absorption of liquid waste is large, so that they can be used particularly preferably in the present invention.

  Wood chips that have been crushed to a particle size of 1 mm to 10 mm, and tatami scraps are used to absorb liquid flammable waste, and powder or solid flammable waste pulverized material adheres to the surface with resin as a binder. Therefore, it is possible to produce a solid fuel having a two-layer structure as shown in FIG.

  Solid waste powder waste includes charcoal, soot, waste toner, okara, bran, coffee grounds, tea grounds, bread crumbs, defective coal, waste white clay, powdered coal grounds, etc. Although it is preferably used, it is also possible to use powder waste that does not generate heat, such as dust collected from a dust collection facility, waste pigment, and waste sandblast.

  It is preferable to use a mixture of cement and waste as a surface coating material for solid fuel. Such sludge as activated sludge, papermaking sludge, billpit sludge, dyeing wastewater treatment sludge, organic sludge such as cleaning wastewater treatment sludge, polishing sludge, gravel cleaning sludge, cement factory wastewater treatment sludge, aluminum hydroxide sludge, glass polishing Inorganic sludge such as sludge, sludge after oil-water separation, and metal polishing sludge can be used. Since these sludges are gel-like and contain a lot of moisture, when cement is mixed and applied to the surface of the solid fuel, the hydration reaction proceeds with the passage of time, the surface of the solid fuel hardens, and the stickiness is lost.

  A more detailed production method will be explained. The combustible liquid waste is 5 to 50% by weight, preferably 10 to 40% by weight, more preferably 20 to 40% by weight in the kneading machine, and the rest is added with the solid waste and the total amount And kneading. In this case, the composition is adjusted so that the amount of the resin serving as the binder is 5 to 50% by weight, preferably 5 to 50%, more preferably 10 to 40% of the entire composition.

  If the flammable liquid waste is 5% or less, the kneaded material generates dust without wettability, and if it is 50% or more, it cannot be absorbed by the solid waste and the fluidity remains in the kneaded material, so it can be handled as a solid fuel. It may be inconvenient because it is not.

  Further, if the amount of the resin serving as the binder is 1% or less of the total composition, it may be inconvenient because the solid waste cannot be completely adhered and cannot be solidified.

  When the liquid / solid waste charged into the kneader with the above composition is kneaded, the liquid waste is adsorbed by the solid waste and the fluidity of the kneaded product is lost, and it tends to be a lump of about 500 mm to 1 mm depending on the composition.

  Although granulation can be performed with a normal mixer, it can be easily performed with a so-called granulator. When the adhesive remains on the surface of the granulated product after granulation, it is preferable to add a small amount of powder waste and apply it to the surface of the granulated product because the adhesive of the granulated product is lost.

  Next, a mixture obtained by previously kneading sludge and cement is put into a mixer and coated on the surface of the granulated solid fuel. As the cement to be used, Portland cement, alumina cement, jet cement, blast furnace cement, fly ash cement and the like can be used.

The mixing ratio of cement to sludge is suitably 2 to 100% by weight, and the uniaxial compressive strength after 7 days of the mixture should be about 0.5 N / mm ^2. It is uneconomical. When the blending ratio is 2% by weight or less, although depending on the properties of the sludge, the solidified body strength is 0.5 N / mm ² or less, and it is not preferable because it has adhesiveness after the cement is cured.

  The proportion of sludge added to the total amount of combustible liquid waste and solid waste is suitably 10 to 30% by weight, more preferably 10 to 20% by weight. If it is 10% by weight or less, the surface of the solid fuel cannot be sufficiently covered, and if it is 50% by weight or more, the calorific value of the solid fuel becomes low.

  In the sludge / cement mixture, the hydration reaction of the cement progresses over time, and the strength of the solidified body is manifested, so that the stickiness is lost and the solid fuel tends to become a good solid fuel.

  In order to use the solid fuel of this embodiment as a good fuel, the calorific value is preferably 4000 cal / g or more. In order to prevent corrosion and wear of the combustion equipment, the chlorine content is preferably 3000 ppm or less.

  The solid fuel production apparatus is not particularly limited as long as solid, liquid, powder, and each waste can be efficiently metered, mixed, and granulated, but a biaxial paddle mixer is suitable. The twin-screw mixer proposed by 419916 can be used suitably. Since this mixer does not have a kneading and dispersion hindrance shaft, the flow of the kneaded product is increased in speed and uniform kneading is possible, and the two continuous spiral blades opposed to each other are convected to the left and right while being lifted from the bottom, Further, crossing causes the kneaded materials to collide with each other, thereby generating strong pressure shear to perform convective shearing, which can be suitably used in the present invention for mixing wastes of many shapes.

  The measuring method is not particularly limited, but it is preferable to use a load cell installed in a mixer in order to accurately measure gelled waste such as waste ink and waste grease. Weighing can also be performed using a weighing device other than the mixer, but the gel waste is attached to the weighing container and it is difficult to completely discharge, so the load cell system installed in the mixer does not need to be transferred It is preferable to use the weighing device.

Hereinafter, the present embodiment will be described more specifically with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples.
Table 1 shows the properties of the waste used in the examples.

（実施例１）
表１に示す組成を持つ木くず３ｋｇ、廃トルエン６ｋｇ、粒径を３ｍｍ以下に粉砕した廃固形塗料７．４ｋｇを（株）北川鉄工所製総容量４０Ｌのジクロスミキサーに投入し３分間混練したところ、３ｍｍ〜３０ｍｍの粒径を持つ粒状の固形物となったがその表面は多少粘着性が有った。次に、予め３ｋｇの製紙汚泥と０．６ｋｇのポルトランドセメントを混練した混練物を加え更に２分間混練したところ、製紙汚泥−ポルトランドセメント混練物が粒状の固形燃料表面に塗された。一夜経過後観察したらポルトランドセメントが硬化し表面の粘着性は無くなっていた。

Example 1
3 kg of wood scrap having the composition shown in Table 1, 6 kg of waste toluene, and 7.4 kg of waste solid paint pulverized to a particle size of 3 mm or less were put into a 40 liter dicross mixer manufactured by Kitagawa Steel Works and kneaded for 3 minutes. However, although it became a granular solid having a particle diameter of 3 mm to 30 mm, the surface was somewhat sticky. Next, when a kneaded material in which 3 kg of paper sludge and 0.6 kg of Portland cement were previously kneaded was added and further kneaded for 2 minutes, the paper sludge-Portland cement kneaded material was applied to the surface of the granular solid fuel. When observed overnight, the Portland cement hardened and the surface was not sticky.

  It was 4269 cal / g when the calorific value of this composition was measured using the bomb type calorimeter by Shimadzu Corporation. The chlorine content was 545 ppm as measured using a chlorine meter manufactured by Dia Instruments Co., Ltd.

  Although the solid fuel composition of the present invention was used as a fuel in a cement kiln, it was not sticky during storage and transportation, and further dust generation did not occur, and it could be easily used as a cement fuel.

(Example 2)
7 kg of tatami scraps crushed to a particle size of 5 mm or less having the composition shown in Table 1, 4 kg of waste oil paint, 2 kg of waste ink, 2 kg of waste polyethylene crushed to a particle size of 2 mm or less with a total capacity of 40 L manufactured by Kitagawa Steel Works When the mixture was put into a dicross mixer and kneaded for 3 minutes, the kneaded product became a granular solid having a particle size of 1 mm to 50 mm as shown in FIG. There was. Next, a kneaded mixture of 4 kg of sewage sludge and 1 kg of Portland cement was added in advance and kneaded for 2 minutes. As a result, the sewage sludge and Portland cement kneaded were applied to the surface of the granular solid fuel. When observed overnight, the Portland cement hardened and the surface was not sticky.

  It was 4440 cal / g when the calorific value of this composition was measured using the Shimadzu Corporation cylinder type calorimeter. The chlorine content was 830 ppm as measured using a diainstrument chlorine meter.

  Although the solid fuel composition of the present invention was used as a fuel in a cement kiln, it was not sticky during storage and transportation, and further dust generation did not occur, and it could be easily used as a cement fuel.

(Example 3)
2 kg of waste light oil having the composition shown in Table 1, 6 kg of waste styrene resin pulverized to a particle size of 3 mm or less, 6 kg of waste guar gum powder, and 3 kg of waste ethyl acetate are added to a dicross mixer with a total capacity of 40 L manufactured by Kitagawa Steel Works When the mixture was added and kneaded for 3 minutes, the kneaded product became a granular solid having a particle size of 1 mm to 30 mm, but the surface was sticky. Next, when 3 kg of EP ash was added and kneaded for 1 minute, EP ash was applied to the surface of the solid material, and the adhesiveness of the surface disappeared.

  The calorific value of this composition was 5840 cal / g as measured using a cylinder-type calorimeter manufactured by Shimadzu Corporation. Further, the chlorine content was measured using a chlorine meter manufactured by Dia Instruments Co., Ltd. and found to be 1160 ppm.

  This solid fuel composition was used as a fuel in a cement kiln, but it was not sticky during storage and transportation, and no dust generation occurred, so that it could be easily used as a cement fuel.

(Comparative Example 1)
10 kg of waste light oil having the composition shown in Table 1, 3 kg of waste styrene resin pulverized to a particle size of 3 mm or less, 2 kg of waste guar gum powder, and 2 kg of waste ethyl acetate are added to a dicross mixer with a total capacity of 40 L manufactured by Kitagawa Steel Works. When the mixture was added and kneaded for 3 minutes, the kneaded product was fluid. Next, 3 kg of EP ash was added and kneaded for 1 minute, but it was fluid and did not become a solid fuel. In this formulation, the total amount of waste light oil and waste ethyl acetate, which is liquid waste, was 60% by weight of the entire composition, and it is considered that the fluidity remained in the composition.

Example 4
7 kg of waste polypropylene pulverized to a particle size of 2 mm or less with the composition shown in Table 1, 6 kg of waste water-based paint, and 2 kg of waste powder paint are put into a 40 liter dicross mixer manufactured by Kitagawa Steel Works and kneaded for 3 minutes. As a result, the kneaded product became a granular solid having a particle size of 1 mm to 40 mm. Next, when a kneaded material obtained by previously kneading 4 kg of glass polishing sludge and 1 kg of alumina cement was added and further kneaded for 2 minutes, the glass polishing sludge-alumina cement kneaded material was applied to the surface of the granular solid fuel. When observed overnight, the alumina cement hardened and the surface was not sticky.

  It was 4755cal / g when the calorific value of this composition was measured using the Shimadzu Corporation cylinder type calorimeter. The chlorine content was 345 ppm as measured using a diainstrument chlorine meter.

  This solid fuel composition was used as a fuel in a cement kiln, but it was not sticky during storage and transportation, and no dust generation occurred, so that it could be easily used as a cement fuel.

(Example 5)
6 kg of wood scrap, 5 kg of waste ink, 3 kg of waste activated charcoal, and 1 kg of waste grease pulverized to a grain size of 5 mm or less having the composition shown in Table 1 are put into a 40 liter dicross mixer manufactured by Kitagawa Steel Works and kneaded for 3 minutes. As a result, the kneaded product became a granular solid having a particle size of 1 mm to 50 mm. Since the surface of the solid was somewhat sticky, when 4 kg of waste toner was further added and kneaded, the stickiness of the solid surface disappeared.

  It was 6180 cal / g when the calorific value of this composition was measured using the Shimadzu Corporation cylinder type calorimeter. The chlorine content was measured by using a diameter manufactured by Dia Instruments Co., Ltd. and found to be 1970 ppm.

  This solid fuel composition was used as a fuel in a cement kiln, but it was not sticky during storage and transportation, and no dust generation occurred, so that it could be easily used as a cement fuel.

(Comparative Example 2)
8 kg of wood chips pulverized to a particle size of 5 mm or less with the composition shown in Table 1, 1 kg of waste ink, 5 kg of waste activated carbon, 1 kg of waste grease, and 5 kg of waste toner are put into a dicross mixer with a total capacity of 40L manufactured by Kitagawa Steel Works. When the mixture was kneaded for 3 minutes, the kneaded product was in a powder form and generated a lot of dust and could not be handled as a solid fuel. In this formulation, the amount of binder resin is 2.25%, and it is considered that solid waste could not be sufficiently bonded.

  This solid fuel is granulated with the main raw material as waste, solid waste or its pulverized material using the binder resin contained in the waste, and further has sludge / cement hardened body on the surface, so there is no stickiness It is excellent in handleability and can be used well as a solid fuel. Furthermore, since it is not necessary to perform pressure molding, the production cost can be kept low.

It is a schematic diagram which shows the solid fuel which concerns on this embodiment. It is a schematic diagram which shows the solid fuel which concerns on this embodiment.

Claims (15)

Including flammable liquids and solid substances,
The solid material is a solid fuel comprising at least one of a nonflammable material and a low-flammable material and a combustible material. The solid fuel according to claim 1,
A solid fuel obtained by granulating the combustible liquid and the solid substance with a granulated substance. The solid fuel according to claim 2,
A solid fuel in which the granulated material is a resin. A solid fuel according to any one of claims 1 to 3,
A solid fuel in which at least one of the combustible liquid and the solid substance is waste. The solid fuel according to claim 4,
A solid fuel in which both the combustible liquid and the solid substance are waste. A solid fuel according to any one of claims 1 to 5,
Solid fuel containing at least one of wood waste and fiber waste. A solid fuel according to any one of claims 1 to 6,
Solid fuel whose surface is coated with at least one of fine powder, cement, and sludge. A solid fuel according to any one of claims 1 to 7,
A solid fuel having a calorific value of 3000 cal / g or more and a chlorine content of 3000 ppm or less. A solid fuel according to any one of claims 1 to 8,
Solid fuel used as a cement manufacturing fuel. Mixing a flammable liquid with a solid substance comprising at least one of a non-flammable substance and a low-flammable substance and a flammable substance;
A method for producing a solid fuel obtained by granulating this mixture with a granulating substance. A method for producing a solid fuel according to claim 10,
A method for producing a solid fuel, wherein a resin is contained in the solid material, and the resin is used as a granulated material. A method for producing a solid fuel according to claim 10 or 11,
Add and mix at least one of wood and fiber scraps,
A method for producing a solid fuel obtained by granulating this mixture with a granulating substance. A method for producing a solid fuel according to any one of claims 10 to 12,
A method for producing a solid fuel, wherein distribution of the mixture is determined so that at least one of a calorific value and a chlorine content falls within a predetermined range. A method for producing a solid fuel according to any one of claims 10 to 13,
A method for producing a solid fuel in which the mixing is performed in a container, and the substance to be mixed is measured by a meter installed in the container. A method for producing a solid fuel according to any one of claims 10 to 14,
The material to be mixed is a solid fuel manufacturing method including waste.

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