WO2017052027A1 - 성형탄 및 그 제조 방법 - Google Patents
성형탄 및 그 제조 방법 Download PDFInfo
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- WO2017052027A1 WO2017052027A1 PCT/KR2016/005536 KR2016005536W WO2017052027A1 WO 2017052027 A1 WO2017052027 A1 WO 2017052027A1 KR 2016005536 W KR2016005536 W KR 2016005536W WO 2017052027 A1 WO2017052027 A1 WO 2017052027A1
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- WIPO (PCT)
- Prior art keywords
- coal
- weight
- coal briquettes
- briquettes
- binder mixture
- Prior art date
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Classifications
-
- 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
- C10L5/361—Briquettes
-
- 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
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
- C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
- C10L5/14—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders
-
- 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
- C10L2290/24—Mixing, stirring of fuel components
-
- 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
- C10L2290/30—Pressing, compressing or compacting
-
- 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
Definitions
- the present invention relates to coal briquettes and a method of manufacturing the same. More specifically, the present invention relates to coal briquettes using Bao plastic and a method of manufacturing the same.
- iron ore is used as a reducing furnace and a molten gasifier for melting the reduced iron ore.
- a melt gasifier coal briquettes are charged into the melt gasifier as a heat source for melting iron ore.
- the reduced iron is melted in the molten gasifier, converted to molten iron and slag and then discharged to the outside.
- the coal briquettes charged into the melt gasifier form a coal seam layer.
- Oxygen is blown through the tuyere provided in the melt gasifier, and then burns the coal seam layer to generate combustion gas.
- Combustion gas is converted into hot reducing gas while rising through the coal-filled bed.
- the high temperature reducing gas is discharged to the outside of the melt gasification furnace and supplied to the reduction furnace as reducing gas.
- Coal briquettes are made by mixing coal and a binder.
- molasses is used as the binder.
- the content of molasses varies depending on the region of production, and it is difficult to control the components according to the sugar production process. Therefore, when the coal briquettes are manufactured using molasses as a binder, the quality of the coal briquettes cannot be constantly controlled. In particular, when molasses having high moisture is used, the quality of coal briquettes is deteriorated.
- the present invention provides a coal briquette to which bioplastics are applied and a method of manufacturing the same.
- the present invention relates to a method for producing coal briquettes which are charged into a base of a molten gasifier in a molten gas production apparatus including a molten gasifier in which reduced iron is charged, and a reducing furnace for providing reduced iron.
- Method for producing coal briquettes according to an embodiment of the step of providing pulverized coal, Mixing a starch, an aqueous acid solution and water to prepare a binder mixture; Mixing the pulverized coal and the binder mixture to produce a coal blend; And forming the coal briquettes by molding the coal briquettes.
- water may be mixed in an amount of 0.01 to 1% by weight and 20 to 60% by weight of an aqueous acid solution of starch, based on 100% by weight of the binder mixture. More specifically, the water may be mixed with 40 to 55% by weight of starch, 0.01 to 0.5% by weight of aqueous acid solution, and the remainder.
- the concentration of the acid aqueous solution may be 1 to 10% by weight.
- the aqueous acid solution may include at least one citric acid, acetic acid, lactic acid, malic acid, tartaric acid and ascorbic acid.
- the binder mixture may be at pH 3-6.
- 90 to 99% by weight of pulverized coal and 1 to 10% by weight of the binder mixture may be mixed with respect to 100% by weight of coal blend. Specifically, it may include 95 to 98% by weight of pulverized coal and 2 to 5% by weight of the binder mixture.
- the step of preparing the coal blend may be performed at a temperature of 55 to 200 ° C.
- the step of preparing the blended coal may include a first mixing step in which mixing is performed at a temperature of 55 to 65 ° C. and a second mixing step in which mixing is performed at a temperature of 65 to 20 (C after the first mixing step. Can be.
- the method may further include drying the coal briquettes at 100 to 200 ° C. for 10 to 20 minutes.
- Coal briquettes according to an embodiment of the present invention comprises 1 to 10% by weight of bioplastics, 3 to 15% by weight of moisture and the balance of coal, and bioplastics may be 40% by weight of amylopectin> or less than 60% by weight of amylose. Is done.
- Bioplastics from 3.5 to 5% by weight can include the water-coal portion 5 'to 10% by weight and the balance.
- Bioplastics can be made up from 25 to 35 weights of amylopectin 3 ⁇ 4> and from 65 to 75 weight percent of amylose. ⁇ Effects of the Invention ⁇
- Coal briquettes with good strength can be produced.
- FIG. 1 is a schematic flowchart of a method of manufacturing coal briquettes according to an exemplary embodiment of the present invention.
- FIG. 2 is a diagram showing the conversion of amylopectin to amylose and the formation principle of starch and bioplastics.
- FIG. 3 is a view schematically showing a coal briquette manufacturing apparatus according to an embodiment of the present invention.
- FIG. 4 is a schematic diagram of an apparatus for manufacturing molten iron using the coal briquettes manufactured in FIG.
- FIG. 5 is a schematic diagram of another apparatus for manufacturing molten iron using the coal briquettes manufactured in FIG. 1.
- FIG. 6 is a result of measuring viscoelasticity tested in Example 1.
- FIG. 7 shows viscoelasticity measurement results tested in Example 2.
- crab 2, and crab 3 are used to describe various parts, components, regions, layers, and / or sections, but are not limited to these. These terms are only used to distinguish one part, component, region, layer or section from another part, component, region, layer or section. Accordingly, the following U portion, component, region, layer or section may be referred to as the second portion, component, region, layer or section without departing from the scope of the present invention.
- FIG. 1 schematically shows a flow chart of a method for producing coal briquettes according to an embodiment of the present invention.
- the flowchart of the manufacturing method of the coal briquettes of FIG. 1 is for illustration only, and this invention is not limited to this. Therefore, the coal briquettes and the manufacturing method can be variously modified.
- the method for preparing coal briquettes includes the steps of providing fine coal (S10), mixing the starch, an aqueous acid solution and water to prepare a binder mixture (S20), and mixing the fine coal and the binder mixture.
- the manufacturing method of coal briquettes may further include other steps as necessary.
- pulverized coal is provided.
- pulverized coal is pulverized coal
- coal is generally coal is about 60% peat, about 70% peat and lignite, about 70% to 80% subbituminous coal, about 80V to 9OT bituminous coal, It is classified as anthracite coal more than 90%.
- the kind of coal used here is not specifically limited, A single coal type or various types of coal can be mixed and used.
- the particle size is constant, and as a specific criterion, pulverized coal having a particle size distribution having a particle size of 3 mm 3 or less and a particle size of 5 mm or less and 90 wt% or more can be used.
- step (S20) starch, acid aqueous solution and water are mixed to prepare a binder mixture.
- a binder mixture instead of directly mixing the manufactured bioplastics with pulverized coal and applying them as binders of coal briquettes, starch, acid aqueous solution and water, which are raw materials of bioplastics, are prepared as a binder mixture, which will be described later.
- it is mixed with pulverized coal and synthesized into bioplastics to serve as a coal briquette binder. If the bioplastics are already mixed with pulverized coal, it is not smooth to apply them to the surface of the pulverized coal, and the process of remelting the bioplastic at high temperature is required.
- the re-melted bioplastics have low elastic recovery force and thus have low instantaneous strength of the coal briquettes manufactured.
- the starch, an aqueous acid solution and water as a raw material is prepared as a binder mixture, bioplastics are synthesized in the step (S30) to be described later, and the coating is smoothly made on the surface of the pulverized coal. It is possible to immediately improve the strength of the coal briquettes.
- Starch is composed of 20 to 30% by weight amylose and 70 to 80% by weight amylo pectin.
- Amylose has a linear Helix (ix) structure and is elastic and can be applied to the medium effectively. It is also very effective as a binder because it is applied at a high density.
- Amylo pectin however, has a branched structure that is hard to apply to the material to be bound.
- the branch structure since the branch structure has a low density compared to the linear structure, the strength of the binder portion after binding is weak, so it is vulnerable to deformation due to external pressure, and the viscoelastic ability is weak.
- the starch is synthesized into bioplastics in step S30 and the like, and the amylose structure, which is advantageous as a binder, is increased, and the amylopectin structure is reduced, thereby improving the strength and hot strength of the coal briquettes.
- Starch may be blended from 20 to 60% by weight starch, relative to 100% by weight binder binder mixture. If the starch contains too much starch, Uniform mixing can be difficult. If too little starch is included, the binding effect can be negligible. Therefore, the mixing amount of starch can be adjusted to the above-mentioned range. More specifically, the starch may be 40 to 55% by weight relative to 100% by weight of the binder mixture.
- the acid aqueous solution serves to transform the starch into bioplastics in the step (S30) to be described later.
- the aqueous acid solution includes acid and water:
- the acid may be at least one of citric acid, acetic acid, lactic acid, malic acid, tartaric acid and ascorbic acid. '
- the concentration of the acid aqueous solution may be 1 to 10% by weight. .
- the aqueous acid solution may be mixed in an amount of 0.01 to 1% by weight with 100% by weight of the binder mixture, and more specifically 0.01 to 0.5% by weight.
- the balance can be water.
- the pH of the binder compound may be 3-6. If the pH of the binder compound is too high, a problem may occur that is difficult to adequately obtain the viscoelasticity of the bioplastics. If the pH of the binder compound is too low, the viscoelasticity of the bioplastics may be lowered and the equipment may be corroded. Therefore, pH can be adjusted in the above-described range. More specifically, the pH of the binder compound may be 4-5.
- Step (S20) can be carried out at a temperature of 5 ' to 50 ° C. If the silver is too high, the starch may be transformed into bioplastic before being mixed with pulverized coal in step S30 to be described later.
- Steps S10 and S20 described above are independent steps, and step S20 may be performed before step S10, or step S10 and step S20 may be performed simultaneously.
- step S30 the coal briquettes and the binder mixture are mixed to prepare a coal briquette.
- coal briquettes 90 to 99% by weight of pulverized coal and 1 to 10% by weight of the binder mixture may be mixed with respect to 100% by weight of the coal blend. If the binder mixture is mixed too little, the strength of the coal briquettes may be lowered. Binder mixtures too. Even if it is mixed a lot, there is a limit in improving the strength of coal briquettes. There exists a possibility that moisture which exists may degrade the quality of coal briquettes. Therefore, to control the common hapyang heunhap water binder in the above range. More specifically, coal briquettes
- 95 to 98% by weight of pulverized coal and 2 to 5% by weight of binder mixture may be mixed with respect to 100% by weight.
- Step S30 may be carried out at a temperature of 55 to 200 ° C.
- Starch may be transformed into bioplastics by performing step S30 at an appropriate temperature. Describe the mechanism by which starch is transformed into bioplastics.
- Amylose and amylo pectin present in starch have a crystalline structure.
- Amylose is linear, and amylopectin has a structure with a gamma structure. If you add heat and add water, the water will penetrate inside the crystal. At room temperature, water is difficult to penetrate between crystals. The water penetrated between the crystals combines amylose and amylo pectin with hydrogen bonding.
- Amylo pectin is branched by acid to amylose. Is formed. When water penetrates into amylose crystals, hydrogen bonding occurs, and hydrophilic group hydrophilic group interaction causes hydrophilic group 0H to go out and hydrophobic group C-C bond to inward, transforming into helix structure.
- Helix which is not combined with polar fats, is a helix and forms a double helix structure.
- amylose it is shared as a double helix, and water is discharged outwards to form a crystal structure.
- amalo pectin is converted to amylose.
- Amylose is composed of glucose with alpha l, 4-bonding.
- Amylopectin is composed of 1, 4-bonding of main backbone, and its branch is connected to skeletal structure through alpha 1 and 6-bonding.
- Table 1 summarizes the chemical structures and properties of amylopectin and amylose.
- Step S30 may include a first mixing step of mixing at a temperature of 55 to 65 ° C. and a second step of mixing at a temperature of 65 to 200 ° C. after the first mixing step. 1 again, in step S40, the coal briquettes are manufactured by mixing the pulverized coal and the binder mixture.
- a coal briquette in the form of a pocket or a strip may be manufactured by loading a mixture between the pairs rotating in opposite directions. As a result, coal briquettes having excellent hot strength and hot strength can be produced.
- the coal briquettes may further comprise a step of drying for 10 to 20 minutes at 100 to 200 ° C.
- the water present in the coal briquettes can be adjusted to include 3 to 15% by weight of water based on 100% by weight of coal briquettes. It is possible to improve the strength of coal briquettes in the aforementioned range.
- Coal briquettes according to an embodiment of the present invention comprises 1 to 10% by weight of bioplastics, 3 to 15% by weight of moisture and the balance of coal, and bioplastics are 40% by weight of amylopectin and 60% by weight of amylose. Is done. Coal briquettes according to an embodiment of the present invention have excellent strength due to the viscoelasticity of bioplastics.
- the bioplastics may include 3.5 to 5 weight 3 ⁇ 4, the water to 5 to 10% by weight and the balance of coal.
- the bioplastic may consist of 25 to 35% by weight of amylopectin and 65 to 75% by weight of amylose.
- 3 schematically shows a coal briquette manufacturing apparatus to which the method of manufacturing coal briquettes illustrated in FIG. 1 is applied.
- the structure of the coal briquette manufacturing apparatus of FIG. 3 is merely for illustrating the present invention, and the present invention is not limited thereto. Therefore, the coal briquette manufacturing apparatus of FIG. 3 may be modified in various forms.
- the coal briquette manufacturing apparatus includes a bin (1, 2, 3). Bins (1, 2, 3) supply starch, aqueous acid solution and water.
- the bins 1, 2, 3 are connected with a binder mixer 5, and the starch, acid aqueous solution and water supplied from the bins 1, 2, 3 are mixed in the binder mixer 5. At this time, the binder mixer 5 can maintain the temperature of 5 to 50 ° C to prevent the starch from being transformed into bioplastics.
- the binder mixer 5 is connected to the coal briquette combiner 6, and supplies the binder mixture to the coal briquette combiner 6. As shown in FIG. In addition, the coal briquette combiner 6 is supplied with pulverized coal from the pulverized coal bin 4. The blended coal combiner 6 mixes the supplied pulverized coal and the binder mixture and supplies the mixed coal to the kneader 7. Blended coal combiner (6) can maintain a temperature of 55 to 65 ° C.
- the coal briquettes supplied from the coal briquette combiner 6 are stirred for a predetermined time through the kneader 7. At this time, by maintaining the temperature of the kneader at 65 to 200 ° C., the starch in the mixture can be transformed into bioplastics.
- the kneader 7 can be stirred for at least 3 minutes.
- the coal briquettes stirred in the kneader 7 are supplied to the molding machine 8 and formed into coal briquettes.
- the molding machine 8 can be operated above -5 ° C. More specifically, it can be operated at room temperature.
- 4 schematically shows an apparatus for manufacturing molten iron 100 using the coal briquettes manufactured in FIG.
- the structure of the apparatus for manufacturing molten iron 100 of FIG. 4 is merely for illustrating the present invention, but the present invention is not limited thereto. Therefore, the apparatus for manufacturing molten iron 100 of FIG. 4 may be modified in various forms.
- the molten iron manufacturing apparatus 100 of FIG. 4 includes a melt gasification furnace 10 and a reduction furnace 20. In addition, other devices may be included as needed. Iron ore is charged and reduced in the reduction furnace 20. The iron ore charged into the reduction furnace 20 is made of reduced iron while passing through the reduction furnace 20 after being pre-dried. Reduction furnace 20 is a packed-bed reduction reactor, receives a reducing gas from the melt gasifier (10) to form a layered layer therein.
- Coal briquettes produced by the manufacturing method of FIG. Since it is charged, a coal filling layer is formed inside the melting gasifier 10.
- the dome part 101 is formed in the upper part of the melt gasifier 10. That is, a wider space is formed than the other parts of the melt gasification furnace 10, where the high temperature reducing gas exists. Therefore, the coal briquettes charged to the dome portion 101 by the high temperature reducing gas can be easily differentiated.
- the coal briquettes produced by the method of FIG. 1 have high hot strength, the coal briquettes do not differentiate in the dome portion of the molten gasifier 10 and fall to the lower portion of the molten gasifier 10.
- the char generated by the pyrolysis reaction of the coal briquettes moves to the lower part of the melt gasification furnace 10 and reacts exothermicly with oxygen supplied through the tuyere 30.
- the coal briquettes can be used as a heat source for keeping the melt gasification furnace 10 at a high temperature.
- the left provides air permeability, the reduced iron supplied from the large amount of gas 20 reduction furnace 20 generated in the lower portion of the melt gasification furnace 10 .
- the coal gasification layer 10 in the melt gasification furnace can pass more easily and uniformly.
- a bulk coal material or coke may be charged into the melt gasifier 10 as necessary.
- An air vent 30 is provided on the outer wall of the melt gasifier 10 to blow in oxygen. Oxygen is blown into the coal seam bed to form a combustion zone.
- the coal briquettes may be burned in a combustion zone to generate reducing gas.
- FIG. 5 schematically shows an apparatus for manufacturing molten iron 200 using the coal briquettes manufactured in FIG. 1.
- the structure of the apparatus for manufacturing molten iron 200 of FIG. 5 is merely for illustrating the present invention, and the present invention is not limited thereto. Therefore, the apparatus for manufacturing molten iron 200 of FIG. 5 may be modified in various forms. Since the structure of the apparatus for manufacturing molten iron 200 of FIG. 5 is similar to that of the apparatus for manufacturing molten iron 100 of FIG. 4, the same reference numerals are used for the same parts, and a detailed description thereof will be omitted.
- the molten iron manufacturing apparatus 200 includes a molten gasifier 10, a reducing furnace 22, a reduced iron compression device 40, and a compressed reduced iron storage tank 50.
- the reduced reduced iron storage tank 50 can be omitted.
- the produced coal briquettes are charged to a melt gasifier 10.
- the coal briquettes generate a reducing gas in the melt gasifier 10 and the generated reducing gas is a fluidized bed type.
- Fed to the reduction furnace The iron ore is supplied to a plurality of reducing furnaces 22 having a fluidized bed, and is made of reduced iron while flowing by the reducing gas supplied from the melt gasifier 10 to the reducing furnaces 22.
- the reduced iron is compressed by the reduced iron compression device 40 and then stored in the reduced reduced iron storage tank 50.
- the compressed reduced iron is supplied from the compressed reduced iron storage tank 50 to the melt gasifier 10 and melted in the melt gasifier 10.
- coal briquettes are fed to the melt gasifier 10 and turned to a breathable left, a large amount of gas and compressed reduced iron generated in the lower portion of the melt gasifier 10 make the coal filling layer in the melt gasifier 10 easier and more uniform. It can be passed through to produce high quality molten iron.
- a binder mixture of pH 3.0, 4.0, 5.0, and 6.0 was prepared by mixing 704 g of starch, 793 g of water, and 70.4 g of an aqueous 5 wt% acid solution (acetic acid).
- a binder mixture of pH 7.0 was also prepared in which the acid aqueous solution was not compatible. Thereafter, the binder mixture was heated to 70 ° C to prepare a bioplastic.
- the storage modulus G '(storage modulus) and loss modulus G "(loss modulus) of each bioplastic are measured according to the pH of the binder mixture, and are shown in FIG. 6.
- Example 2 Viscoelasticity test of bioplastic according to acid type
- Example 2 The same test as in Example 1 was carried out by replacing the type of acid with citric acid, lactic acid, malic acid, tartaric acid and ascorbic acid.
- a binder mixture was prepared by mixing starch, water, and 5% acetic acid aqueous solution in the mixing ratios summarized in Table 2 below.
- the temperature of the prepared binder mixture was maintained at 45 ° C.
- the coal briquettes were compressed into a press to produce briquette-shaped coal briquettes having a size of 64.5 mm x 25.4 mm x 19.1 mm.
- the compression strength and the drop strength of the coal briquettes were measured by the following evaluation method.
- the coal briquettes prepared in Experimental Example 1 are pulverized finely. Then stir with water for a day. Then filter and separate the coal and solvent. The obtained solvent is concentrated by 10% using rotary evaporat ion. Then drop the iodine solution.
- the coal briquettes were compressed into a press to produce briquette-shaped briquettes having a size of 64.5 mm x 25.4 mm x 19.1 mm.
- the compression strength and the drop strength of the coal briquettes were measured by the following evaluation method.
- Comparative Example 1 It was prepared from 16 kg coal pulverized coal having an average property and a particle size of 3 kPa or less.
- CaO and molasses were mixed at the compounding ratios summarized in Table 2 below, and the total amount of about 1.5 kg and pulverized coal were mixed.
- the coal briquettes were compressed into a press to produce briquette-shaped coal briquettes having a size of 64.5 mm x 25.4 mm x 19.1 mm.
- the compression strength and the drop strength of the coal briquettes were measured by the following evaluation method.
- the coal briquettes were compressed into a press to produce briquette-shaped coal briquettes having a size of 64.5 mm x 25.4 mm x 19.1 mm.
- the compression strength and the drop strength of the coal briquettes were measured by the following evaluation method. Compressive strength test
- the coal briquettes prepared in Experimental Examples 1 and 2 and Comparative Examples 1 to 3 were dropped 4 times or 8 times at a height of 50 m from the ground after 1 hour at room temperature, 24 hours at room temperature, and maintained in a shape of 20 mm or more.
- the weight ratio is expressed as a percentage of the weight of the whole coal briquettes.
- Reduced iron compression device 50 Compressed reduced iron storage tank 100, 200. molten iron manufacturing plant 101. Dome part
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Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CA2995464A CA2995464C (en) | 2015-09-25 | 2016-05-25 | Coal briquettes and method for manufacturing same |
CN201680051513.2A CN108026462A (zh) | 2015-09-25 | 2016-05-25 | 型煤及其制备方法 |
EP16848753.6A EP3363880A1 (en) | 2015-09-25 | 2016-05-25 | Coal briquettes and method for manufacturing same |
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KR1020150137116A KR101709206B1 (ko) | 2015-09-25 | 2015-09-25 | 성형탄 및 그 제조 방법 |
KR10-2015-0137116 | 2015-09-25 |
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WO2017052027A1 true WO2017052027A1 (ko) | 2017-03-30 |
WO2017052027A8 WO2017052027A8 (ko) | 2017-06-08 |
WO2017052027A9 WO2017052027A9 (ko) | 2017-11-02 |
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GB201916577D0 (en) * | 2019-11-14 | 2020-01-01 | Changeover Tech Limited | Process for forming a fuel pellet |
CN111575080A (zh) * | 2020-05-27 | 2020-08-25 | 宋彦兵 | 一种机制环保炭及其加工制作方法 |
Citations (6)
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JPH09157666A (ja) * | 1995-12-12 | 1997-06-17 | Idemitsu Kosan Co Ltd | 燃料組成物 |
KR0164028B1 (ko) * | 1996-03-30 | 1998-12-15 | 김상길 | 석탄분과 코우크스분을 이용한 고체연료 |
KR100468455B1 (ko) * | 2000-12-19 | 2005-01-29 | 주식회사 포스코 | 열간특성이 우수한 성형탄 |
WO2013152959A1 (de) | 2012-04-10 | 2013-10-17 | Siemens Vai Metals Technologies Gmbh | Verfahren und vorrichtung zur brikettherstellung |
KR20140081514A (ko) * | 2012-12-21 | 2014-07-01 | 주식회사 포스코 | 성형탄 및 그 제조 방법 |
KR20150075972A (ko) * | 2013-12-26 | 2015-07-06 | 주식회사 포스코 | 성형탄용 바인더의 제조 방법 및 이를 포함하는 성형탄의 제조 방법 |
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DE1072588B (ko) * | 1955-01-13 | 1960-01-07 | ||
US1009961A (en) * | 1911-01-18 | 1911-11-28 | Edward H Ellis | Fuel-briquet and method of making same. |
FR432369A (fr) * | 1911-07-13 | 1911-12-05 | Edouard Marie Heckel | Nouveau procédé et nouvelle formule permettant d'agglomérer toutes les poudres minérales ou végétales fines ou grossières, et en particulier les charbons minéraux ou végétaux et de les transformer en briquettes, boulets ou ovoides, solides, résistants à l'eau, et cela sans le secours du ciment, du brai ou de toute matière bitumineuse ou goudronneuse, c'est-à-dire ne donnant à la combustion ni plus d'odeur, ni plus de fumée, ni plus de cendres que les charbons naturels eux-memes |
US2841478A (en) * | 1954-01-23 | 1958-07-01 | Eldeka Nv | Process for the manufacture of briquets, particularly fuel briquets |
JPS62135594A (ja) * | 1985-12-07 | 1987-06-18 | Norio Ohashi | 成形炭 |
DE4212452C2 (de) * | 1992-04-14 | 1995-02-09 | Sophia Jacoba Gmbh | Kaltbrikettierte Kohle |
CN1119401C (zh) * | 2001-02-03 | 2003-08-27 | 王茂春 | 不粘性原料煤的型煤制造方法 |
KR20130097919A (ko) * | 2012-02-27 | 2013-09-04 | 코텍엔지니어링 주식회사 | 성형탄, 이의 제조장치 및 제조방법 |
-
2015
- 2015-09-25 KR KR1020150137116A patent/KR101709206B1/ko active IP Right Grant
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2016
- 2016-05-25 CA CA2995464A patent/CA2995464C/en not_active Expired - Fee Related
- 2016-05-25 EP EP16848753.6A patent/EP3363880A1/en not_active Withdrawn
- 2016-05-25 WO PCT/KR2016/005536 patent/WO2017052027A1/ko active Application Filing
- 2016-05-25 CN CN201680051513.2A patent/CN108026462A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH09157666A (ja) * | 1995-12-12 | 1997-06-17 | Idemitsu Kosan Co Ltd | 燃料組成物 |
KR0164028B1 (ko) * | 1996-03-30 | 1998-12-15 | 김상길 | 석탄분과 코우크스분을 이용한 고체연료 |
KR100468455B1 (ko) * | 2000-12-19 | 2005-01-29 | 주식회사 포스코 | 열간특성이 우수한 성형탄 |
WO2013152959A1 (de) | 2012-04-10 | 2013-10-17 | Siemens Vai Metals Technologies Gmbh | Verfahren und vorrichtung zur brikettherstellung |
KR20140081514A (ko) * | 2012-12-21 | 2014-07-01 | 주식회사 포스코 | 성형탄 및 그 제조 방법 |
KR20150075972A (ko) * | 2013-12-26 | 2015-07-06 | 주식회사 포스코 | 성형탄용 바인더의 제조 방법 및 이를 포함하는 성형탄의 제조 방법 |
Non-Patent Citations (1)
Title |
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See also references of EP3363880A4 * |
Also Published As
Publication number | Publication date |
---|---|
CA2995464C (en) | 2020-04-21 |
WO2017052027A9 (ko) | 2017-11-02 |
EP3363880A4 (en) | 2018-08-22 |
CA2995464A1 (en) | 2017-03-30 |
KR101709206B1 (ko) | 2017-02-22 |
CN108026462A (zh) | 2018-05-11 |
WO2017052027A8 (ko) | 2017-06-08 |
EP3363880A1 (en) | 2018-08-22 |
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