CN109804052A - Moulded coal preparation method and moulded coal preparation facilities - Google Patents
Moulded coal preparation method and moulded coal preparation facilities Download PDFInfo
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- CN109804052A CN109804052A CN201780063205.6A CN201780063205A CN109804052A CN 109804052 A CN109804052 A CN 109804052A CN 201780063205 A CN201780063205 A CN 201780063205A CN 109804052 A CN109804052 A CN 109804052A
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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
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
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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
- C10L5/04—Raw material of mineral origin to be used; Pretreatment thereof
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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
- C10L5/06—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
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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
- C10L5/06—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
- C10L5/22—Methods of applying the binder to the other compounding ingredients; Apparatus therefor
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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
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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
- C10L5/361—Briquettes
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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
- C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
- C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
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- 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
- C10L2250/00—Structural features of fuel components or fuel compositions, either in solid, liquid or gaseous state
- C10L2250/06—Particle, bubble or droplet size
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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
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/04—Gasification
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- 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
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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
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/08—Drying or removing water
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- 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
- C10L2290/148—Injection, e.g. in a reactor or a fuel stream during fuel production of steam
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- 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
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- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/32—Molding or moulds
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- 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
- C10L2290/50—Screws or pistons for moving along solids
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/52—Hoppers
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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Manufacture Of Iron (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The present invention relates to a kind of moulded coal preparation methods, the dome portion that the moulded coal is fitted into melting gasification furnace in molten iron preparation facilities is rapidly heated, the molten iron preparation facilities includes to be packed into the melting gasification furnace of reduced iron and be connected to melting gasification furnace and provide the reduction furnace of reduced iron, and moulded coal preparation method according to an embodiment of the invention includes: the step of providing fine coal；Starch powder through peracid treatment is mixed into the step of fine coal is to prepare mixed coal；The step of mixed coal is heat-treated；And the step of mixed coal through Overheating Treatment is formed to prepare moulded coal.
Description
Technical field
The present invention relates to a kind of moulded coals and preparation method thereof.More particularly it relates to a kind of using biological plastics
Moulded coal and preparation method thereof.
Background technique
Using the reduction furnace for reducing iron ore and for melting the iron ore by reduction in melting reduction iron-smelting method
The melting gasification furnace of stone.When melting iron ore in melting gasification furnace, moulded coal is packed into melting gas as the heat source of fusing iron ore
Change in furnace.Reduced iron is converted into molten iron and slag by fusing in melting gasification furnace, then discharges.It is packed into melting gas
The moulded coal for changing furnace forms coal packed bed.Oxygen passes through the air port being arranged on melting gasification furnace and is blown into, so that coal packed bed burns
And generate burning gases.Burning gases are converted into high-temperature reducing gas while rising by coal packed bed.High-temperature reducing gas
The outside to melting gasification furnace is arranged, is supplied to reduction furnace as reducing gas.
Moulded coal is that coal and adhesive mix.In the case, molasses are used as adhesive.The ingredient of molasses
It is different according to the place of production, and be difficult to control its ingredient according to sugar refining technology.Therefore, molasses are used to carry out preparative as adhesive
When coal, the quality of moulded coal can not be steadily controlled.In particular, if using high-moisture molasses, under the quality that will result in moulded coal
Drop.
Summary of the invention
Technical problem
The present invention is intended to provide a kind of moulded coal and preparation method thereof using biological plastics.
Technical solution
The present invention relates to a kind of moulded coal preparation method, the moulded coal is fitted into the dome of melting gasification furnace in molten iron preparation facilities
Portion is rapidly heated, and the molten iron preparation facilities includes to be packed into the melting gasification furnace of reduced iron and be connected to melting gasification furnace
And the reduction furnace of reduced iron is provided, moulded coal preparation method according to an embodiment of the invention includes: the step of providing fine coal；
The step of starch powder through peracid treatment is mixed into fine coal to prepare mixed coal (coal blend)；Mixed coal is heat-treated
Step；And the step of mixed coal through Overheating Treatment is formed to prepare moulded coal.
In the step of preparing mixed coal, the starch powder through peracid treatment can be by the inclusion of the method system of following steps
Standby: the biomass of crushing is impregnated in the aqueous solution of acid and isolates amyloid filtrate by the step of biomass is crushed
The step of, the step of by the filtrate isolated cleaning at pH being 3 to 5.5 and the step of the filtrate of cleaning is dried.?
In the step of preparing mixed coal, when the starch powder through peracid treatment is dissolved in water with the concentration of 30 volume %, pH can for 3 to
5.5。
In the step of preparing mixed coal, the average particle size of the starch powder through peracid treatment can be 0.01mm to 1mm.
In the step of preparing mixed coal, relative to the fine coal of 100 parts by weight, 1 parts by weight can be added to 10 parts by weight
Starch powder through peracid treatment.
The step of preparing mixed coal can 50 DEG C to 65 DEG C at a temperature of carry out.
In the step of being heat-treated, by heat treatment, the starch powder through peracid treatment in mixed coal can be transformed into life
Object plastics.
The step of heat treatment may include the step of supplying steam to mixed coal.
The method of supplying of steam can be the fine coal relative to 100 parts by weight, and the moisture in steam reaches 1 parts by weight to 5
Parts by weight.
The temperature of steam can be 120 DEG C to 300 DEG C.
In the step of being heat-treated, the temperature of mixed coal can be 60 DEG C to 200 DEG C.
It also may include the step of the mixed coal through Overheating Treatment is dried after the step of being heat-treated.
Prepared moulded coal include the biological plastics of 1 weight % to 10 weight %, 3 weight % to 15 weight % moisture and
The coal of surplus, biological plastics can by 25 weight % to 70 weight % amylopectin and 30 weight % to 75 weight % it is straight
Chain starch composition.
Moulded coal preparation facilities according to an embodiment of the invention, the moulded coal are fitted into molten iron preparation facilities and melt gas
The dome portion for changing furnace is rapidly heated, and the molten iron preparation facilities includes to be packed into the melting gasification furnace of reduced iron and be connected to
The reduction furnace of melting gasification furnace and offer reduced iron, the moulded coal preparation facilities includes: fine coal supplies storehouse；Shallow lake through peracid treatment
Powder powder supplies storehouse；Starch powder supply storehouse from fine coal supply storehouse and through peracid treatment receives fine coal and through the shallow lake of peracid treatment
Powder powder is mixed and is prepared the mixing machine of mixed coal；The kneader that mixed coal is heat-treated is received from mixing machine；And from pinching
Conjunction machine receives the mixed coal through Overheating Treatment and carries out molding molding machine.
It also may include that mixed coal is preheating to 50 DEG C to 65 DEG C of temperature and is mixed between mixing machine and the kneader
The pre- Hot mixer closed.
Kneader is connected with steam supply pipe, can receive steam from steam supply pipe and be heat-treated to mixed coal.
It also may include the drying machine that the mixed coal through Overheating Treatment is dried between kneader and molding machine.
Invention effect
The moulded coal of excellent strength can be prepared.
There is no K ingredient in adhesive, therefore will not there is a phenomenon where line cloggings.
Due to not using quick lime or white lime, CO2Reactivity decline, so as to improve the fuel efficiency of coal.
Since adhesive mixing ratio minimizes, economy is improved compared with existing adhesive.
Detailed description of the invention
Fig. 1 is the flow diagram of moulded coal preparation method according to an embodiment of the invention.
Fig. 2 is the schematic diagram of moulded coal preparation facilities according to an embodiment of the invention.
Fig. 3 is the schematic diagram using the molten iron preparation facilities of the moulded coal prepared in Fig. 1.
Fig. 4 is the schematic diagram using another molten iron preparation facilities of the moulded coal prepared in Fig. 1.
Fig. 5 is that binder substance remaining after isolating coal from the moulded coal prepared in embodiment and comparative example carries out purple
The result of outer spectrum analysis (UV spectrometer).
Specific embodiment
The terms first, second, third, etc. are for describing various parts, ingredient, region, layer and/or section, but these
Partially, ingredient, region, layer and/or section should not be limited by these terms.These terms are only used to distinguish certain a part, ingredient,
Region, layer and/or section and another part, ingredient, region, layer and/or section.Therefore, without departing from the scope of the present invention, below
First part, ingredient, region, layer and/or the section of description also can be described as second part, ingredient, region, layer and/or section.
Term as used herein is only not intended to the limitation present invention for description specific embodiment.Unless in context
Obvious opposite meaning is separately provided, otherwise singular used herein is also intended to comprising plural form.It should also be appreciated that
It is that term "comprising" refers specifically to a certain characteristic, field, integer, step, movement, element and/or ingredient, but it is not excluded that its
His characteristic, field, integer, step, movement, the presence or additional of element, ingredient and/or group.
Although without separately defining, the meaning of all terms (including technical terms and scientific terms) used herein with
Those skilled in the art is normally understood equivalent in meaning.For the term being defined inside dictionary, it should be interpreted have
Have with relevant technical literature and the consistent meaning of content disclosed herein, without should with idealization or meaning too formal
To explain their meaning.
Detailed description of the present invention embodiment with reference to the accompanying drawings, so that those skilled in the art is easy to implement this hair
It is bright.The present invention can be implemented in a variety of different ways, it is not limited to following embodiments.
Fig. 1 is the flow chart for schematically showing moulded coal preparation method according to an embodiment of the invention.The type of Fig. 1
The flow chart of coal preparation method is only intended to illustrate the present invention, and the invention is not limited thereto.Therefore, moulded coal preparation method can be made
Various modifications out.
As shown in Figure 1, moulded coal preparation method includes: providing the step S10 of fine coal；Starch powder through peracid treatment is mixed
Enter fine coal to prepare the step S20 of mixed coal；The step S30 that mixed coal is heat-treated；And to the mixed coal through Overheating Treatment into
Row is formed to prepare the step S40 of moulded coal.In addition to this, as needed, moulded coal preparation method also may include other steps.
Firstly, providing fine coal in step slo.Fine coal is made of crushing coal, and usual coal is according to carbonizing degree
Be divided into the mud coal of phosphorus content about 60%, about 70% bavin coal and lignite, about 70% to 80% ub-bituminous coal, about 80% to 90%
The anthracite of bituminous coal, 90% or more.The type of used coal is not particularly limited, single coal or mixed can be used
It closes and uses various coals.In order to reduce quality deviation, it is preferable to use the fine coal with certain particle size, specifically can be used with grain
Degree be 3mm it is below account for 80wt% or more, the fine coal that granularity is the 5mm size distribution below for accounting for 90wt% or more.
Next, the starch powder through peracid treatment is mixed into fine coal to prepare mixed coal in step S20.According to the present invention
One embodiment, the present invention is not that the biological plastics that will have been prepared directly is mixed with fine coal as the adhesive of moulded coal,
But it after the starch powder of peracid treatment mixes, will be synthesized in subsequent S30 as biological plastics raw material
Biological plastics makes it play a role as coal briquette bond.If the biological plastics prepared is directly mixed with fine coal,
It cannot successfully be coated on fine coal surface, need to make under high temperature the process of biological plastics refuse.At this point, refuse
Biological plastics because elastic restoring force is low cause prepared by moulded coal real-time intensity reduce.In contrast, of the invention one
Prepare in embodiment includes as raw material after the mixed coal of the starch powder of peracid treatment, in subsequent S30 conjunction
As biological plastics, thus can successfully be coated on fine coal surface, while improving the real-time intensity of prepared moulded coal.
Starch is made of the amylose of 20 weight % to 30 weight % and the amylopectin of 70 weight % to 80 weight %.
Amylose is that linear coil (Helix) structure is flexible, can be effectively coated on medium, and be applied as high density,
Therefore highly effective as adhesive.But amylopectin is that branched structure is harder, thus cannot effectively be coated in and to bond
Substance on.Further, since branched structure density compared with linear structure is low, the intensity of adhesive portion is weaker after bonding, because
This deformation caused by external pressure of being dared not accept, and viscoplasticity is poor.In one embodiment of the invention, it is walked in S30 etc.
Starch synthesis is biological plastics in rapid, therefore is increased as the advantageous amylose structure of adhesive, and amylopectin structure subtracts
It is few, to improve the cold strength and thermal strength of moulded coal.
In one embodiment of the invention, the starch powder through peracid treatment by the inclusion of following steps method system
Standby: the biomass of crushing is impregnated in the aqueous solution of acid and isolates amyloid filtrate by the step of biomass is crushed
The step of, the step of by the filtrate isolated cleaning at pH being 3 to 5.5 and the step of the filtrate of cleaning is dried.This
When, biomass may include being selected from one of cassava, corn, wheat, rice, barley and potato or a variety of.It specifically, can be with
Use corn.
When using corn, with 0.2 volume % to the sulfurous acid solution soaking maize of 0.5 volume %.When corn steeping,
It absorbs water and is slowly swollen, if moisture reaches 40 weight % or so, be at saturation state.After reaching saturation state, in raw material
Solable matter start to be dissolved into maceration extract, the sugar of lactobacter growth, dissolution is fermented into lactic acid.The lactic acid of fermentation and Asia
Sulfuric acid is disintegrated protein, so that the combination of starch and protein softens, so that starch be induced to can be easily separated.Sulfurous will be impregnated in
Corn in acid solution is crushed with pulverizer.Smashed corn is sent to germ separation slot, to isolate starch.Herein
In the case of, the rotation type filter using centrifuge can be used, the starch filtrate isolated is sent to down one of technique.At this point,
Filtrate cleaning is 3 to 5.5 at pH.In addition, dry carry out to moisture content being 15 weight % or less.In this way, part cornstarch
Can there are sulfuric acid and lactic acid in powder.The content of sulfuric acid can be 0.01 weight % or more, the content of lactic acid can for 0.1 weight % with
On.That is, the starch powder through peracid treatment may include the sulfuric acid and 0.1 weight % to 1 of 0.01 weight % to 1 weight %
The lactic acid of weight %.
In general, when preparing starch, aqueous solution of the usage amount of extractant not less than acid from the step of starch isolation acid
100 weight % of middle sour component.In one embodiment of the invention, the starch through peracid treatment is used instead of starch, therefore
The usage amount of extractant can be the 40 weight % to 60 weight % of the aqueous acid medium ingredient of acid.In an implementation of the invention
In example, the technique of the starch through peracid treatment is prepared compared with the technique for preparing normal starch, it is easier instead, and there is system
Standby technologic advantage.
When the starch powder through peracid treatment is dissolved in water with the concentration of 30 volume %, pH should be 3 to 5.5.If pH
It is excessively high, it is likely that be difficult to obtain the viscoplasticity of biological plastics appropriate.If the pH of binder combination is too low, biology modeling
The viscoplasticity of material reduces, at the same may occurrence of equipment corrosion.Therefore, pH can be controlled in aforementioned range.More specifically,
When the starch powder through peracid treatment is dissolved in water with the concentration of 30 volume %, pH can be 4 to 5.
The average particle size of starch powder through peracid treatment can be 0.01mm to 1mm.If the starch powder through peracid treatment
The average particle size at end is too small, then the starch powder through peracid treatment clumps together, and cannot successfully mix with fine coal.If through peracid
The average particle size of the starch powder of processing is excessive, then cannot successfully mix with fine coal.It therefore, can be by the shallow lake through peracid treatment
The average particle size of powder powder is controlled in range above-mentioned.
For the additive amount of the starch powder through peracid treatment, relative to the fine coal of 100 parts by weight, 1 weight can be added
Measure the starch powder through peracid treatment of part to 10 parts by weight.If the additive amount of the starch powder through peracid treatment is excessive,
It is difficult to equably mix starch powder and fine coal through peracid treatment.If the additive amount mistake of the starch powder through peracid treatment
Few, then bonding effect can become very low.Therefore, the additive amount of the starch powder through peracid treatment can be controlled above-mentioned
Range.More specifically, the fine coal relative to 100 parts by weight, can be added the shallow lake through peracid treatment of 2 parts by weight to 8 parts by weight
Powder powder.
Step S20 can 50 DEG C to 65 DEG C at a temperature of carry out.If temperature is too low, risen in subsequent step S30
Temperature to heat treatment temperature appropriate may need long time.If temperature is excessively high, in subsequent step S30 not with
The well-mixed starch powder through peracid treatment of fine coal can be transformed into biological plastics.
Fig. 1 is returned, in step s 30, mixed coal is heat-treated.In step s 30, by being heat-treated, in mixed coal
The starch powder through peracid treatment be transformed into biological plastics.
The mechanism that the starch powder through peracid treatment is transformed into biological plastics is detailed below.
Amylose and amylopectin in starch are crystal structures.Amylose is linear structure, and amylopectin is
With the structure of branch in amylose structure.When water being added after heating, water can penetrate into crystals.Water is difficult at normal temperature
It penetrates between crystal.The water penetrated between crystal is formed sediment amylose and branch by Hydrogenbond (hydrogen bonding)
Powder combines.The branch of amylopectin is cut by acid and is formed as amylose.When water penetrates into amylose gaps between crystals,
Hydrogenbond will occur, due to the interaction of hydrophilic radical, hydrophobic grouping, hydrophilic radical OH is outside, and hydrophobic grouping C-C
Key is inside, to deform as spiral (Helix) structure.Moreover, being tied with the polar lipid (polar lipid) in starch
It closes and forms double helix (double helix) structure centered on polar lipid.Between spiral not in conjunction with polar lipid
Form double-spiral structure.For amylose, and it is shared as double-spiral structure, then discharges water, and forms crystal structure.
The mechanism that amylopectin becomes amylose is as follows: amylose is that glucose (glucose) is connected with α-Isosorbide-5-Nitrae-key
Made of connecing.Amylopectin is main framing (back-bone) so that made of Isosorbide-5-Nitrae-key connection, component is connected by α -1,6- key
It is connected on skeleton.
Under conditions of pH is 3 to 5.5 and temperature is 60 DEG C or more, α-Isosorbide-5-Nitrae-key will not be cut, and α -1,6- key
It is cut.Therefore, in presence of an acid, α -1,6- key are cut to the property of can choose.Therefore, by cutting the branch of amylopectin,
It can be formed similarly to the linear of amylose.
Process in this way can synthesize amylopectin and 30 weight % to 75 by 25 weight % to 70 weight %
The biological plastics of the amylose composition of weight %.More specifically, biological plastics is formed sediment by the branch of 25 weight % to 35 weight %
The amylose of powder and 65 weight % to 75 weight % composition.Since density is relatively high, the intensity of moulded coal can increase biological plastics
Add, and linear molecule forms helical structure, so as to effectively be adhered on fine coal surface.
The step of heat treatment of step S30 may include the step of supplying steam to mixed coal.By supplying steam, can supply
Moisture and heat needed for biological plastics synthesis.In one embodiment of the invention, biological plastics synthesis needed for acid be not with
Aqueous solution form provides, but is provided with the powder type through peracid treatment, therefore will not the unnecessary moisture of excess supply.Knot
Fruit, the moisture content in moulded coal reduce, the cold strength of moulded coal can be improved, can also reduce unnecessary drying steps.Specifically
Ground, the method for supplying of steam can be the fine coal relative to 100 parts by weight, and the moisture in steam reaches 1 parts by weight to 5 weight
Part.If moisture supply is very few, biological plastics synthesis will not be gone on smoothly.If moisture supply is excessive, to final
The cold strength of the moulded coal of preparation can generate adverse effect.Therefore, it can control the amount of steam, to supply water according to range above-mentioned
Point.At this point, the temperature of steam can be 120 DEG C to 300 DEG C.
In step s 30, due to heat treatment, the temperature of mixed coal can rise to 60 DEG C to 200 DEG C.When the temperature of mixed coal does not have
When suitably rising, the synthesis of biological plastics will not be gone on smoothly.
It also may include the step of the mixed coal through Overheating Treatment is dried after step S30.Specifically, at 50 DEG C
It, can be 3 minutes to 10 minutes dry by mixed coal at a temperature of 200 DEG C.By further including dry step, can control
The moisture being present in moulded coal, so that the moulded coal relative to 100 weight %, includes 3 weight % to the moisture of 15 weight %.More
Body, it may be controlled to the moisture comprising 5 weight % to 9 weight %.In aforementioned range, the intensity of moulded coal can be improved.
These moisture may be from being present in the moisture in fine coal in step S10, be present in the starch powder through peracid treatment in step S20
In moisture and step S30 in be present in the moisture in steam.
Fig. 1 is returned, in step s 40, the mixed coal through Overheating Treatment is formed to prepare moulded coal.Although in Fig. 1
Be not shown, by by mixed coal be packed into rotation reversely with each other to fritter (pocket) or strip molded coal between roller, can be prepared.
As a result, the moulded coal with excellent calorific intensity and cold strength can be prepared.
The moulded coal prepared by preparation method as described above includes biological plastics, 3 weights of the 1 weight % to 10 weight %
% is measured to the moisture of 15 weight % and the coal of surplus, biological plastics by 25 weight % to 70 weight % amylopectin and 30 weights
Measure the amylose composition of % to 75 weight %.More specifically, moulded coal may include the biological plastics of 3 weight % to 7 weight %, 5
Weight % is to the moisture of 9 weight % and the coal of surplus.Due to the viscoplasticity of biological plastics, according to one embodiment of present invention
Moulded coal have excellent intensity.
Fig. 2 schematically shows the moulded coal preparation facilities using moulded coal preparation method shown in FIG. 1.The moulded coal system of Fig. 2
The structure of standby device is only intended to illustrate the present invention, and the invention is not limited thereto.Therefore, the moulded coal preparation facilities of Fig. 2 can be become
Shape is various forms.
Moulded coal preparation facilities 100 according to an embodiment of the invention includes: fine coal supplies storehouse 10；Through peracid treatment
Starch powder supplies storehouse 20；Starch powder supply storehouse 20 from fine coal supply storehouse 10 and through peracid treatment receives fine coal and through peracid
The starch powder of processing is mixed and is prepared the mixing machine 30 of mixed coal；The kneader that mixed coal is heat-treated is received from mixing machine
50；And the mixed coal through Overheating Treatment is received from kneader 50 and carries out molding molding machine 70.
The fine coal supply storehouse 10 of moulded coal preparation facilities 100 according to an embodiment of the invention and the shallow lake through peracid treatment
Fine coal and the starch powder through peracid treatment are supplied in powder powder supplies storehouse 20.Front is to fine coal and through the starch of peracid treatment
Powder is described, therefore repeats no more.
Fine coal and starch powder through peracid treatment are supplied to mixing machine 30.Mixing machine 30 is supplied storehouse 10 from fine coal and is passed through
The starch powder supply storehouse 20 of acid processing receives fine coal and the starch powder through peracid treatment is mixed and prepares mixed coal.
Mixing machine 30 is connect with pre- Hot mixer 40, and mixed coal can be preheating to 50 DEG C to 65 DEG C of temperature.Due to preheating
The presence of mixing machine 40 can promptly carry out the heat treatment of mixed coal in subsequent kneader 50.Pre- Hot mixer 40 can be with
Steam is supplied, to be heat-treated.
Kneader 50 receives mixed coal from mixing machine 30 or pre- Hot mixer 40 and is heat-treated.Due to the heat in kneader 50
Processing, the starch powder through peracid treatment are transformed into biological plastics.Front is described biological plastics, therefore no longer
It repeats.
Steam supply pipe 51 is connected on kneader 50, can from steam supply pipe 51 receive steam to mixed coal carry out it is hot from
Reason.Multiple steam supply pipes 51 can be set along the vertical direction of kneader 50.Multiple steam supply pipes 51 are according to setting position
It sets, the steam or different amounts of steam of different temperatures can be supplied respectively.Such as, it can be provided it is more past along vertical direction
Lower supplied vapor (steam) temperature is higher or the quantity of steam supplied more down is more.In one embodiment of the invention, sour
It is not provided, is provided in the form of the starch powder through peracid treatment, therefore reduce in mixed coal in the form of the aqueous solution of acid
Unnecessary moisture, to save the energy in kneader 50 for heat treatment.For example, if tartaric acid is in the form of the aqueous solution of acid
There is provided, then in sour aqueous solution moisture it is more containing quantitative change, need further supplying energy, in kneader by the water-soluble of acid
Moisture in liquid is converted into vapor form.In addition, in order to which the heating being heat-treated in kneader 50 will not be complete rapidly
At.As a result, the cleavage reaction for biological plastics transformation can not effectively occur.In contrast, in one embodiment of the present of invention
In the case where, the moisture content in mixed coal minimizes, in order to which the energy being heat-treated in kneader 50 can be reduced, in order to
The heating of heat treatment can also quickly complete, and the cleavage reaction for being accordingly used in biological plastics transformation effectively occurs, result moulded coal
Compressive strength and drop strength are improved.
It can connect the drying machine 60 that the mixed coal through Overheating Treatment is dried on the rear end of kneader 50.Drying machine 60
Can by the mixed coal through Overheating Treatment 50 DEG C to 200 DEG C at a temperature of it is 3 minutes to 10 minutes dry.Drying machine 60 sprays 70 DEG C
Above hot wind is simultaneously provided with ventilation hole (Vent), and all moisture can be made to evaporate immediately.
Molding machine 70 receives the mixed coal through Overheating Treatment from kneader 50 and is formed.Molding machine 70 is by the way that mixed coal to be packed into
Rotation reversely with each other between roller, fritter or strip molded coal can be prepared.Molding machine 70 can -5 DEG C or more at a temperature of
Work.More specifically, can work at normal temperature.
Fig. 3 schematically shows the molten iron preparation facilities 200 using the moulded coal prepared in Fig. 1.The molten iron of Fig. 3 prepares dress
The structure for setting 200 is only intended to the illustration present invention, and the invention is not limited thereto.It therefore, can be by the molten iron preparation facilities 200 of Fig. 3
It is deformed into various forms.
The molten iron preparation facilities 200 of Fig. 3 includes melting gasification furnace 110 and reduction furnace 120.In addition to this, as needed, also
It may include other devices.Iron ore is packed into reduction furnace 120 to be restored.The iron ore of reduction furnace 120 is housed to by predrying
Afterwards, reduced iron is made via reduction furnace 120.Reduction furnace 120 is packed bed reduction furnace, receives also Primordial Qi from melting gasification furnace 110
Body is formed in the interior thereof packed bed.
The moulded coal prepared by the preparation method of Fig. 1 is packed into melting gasification furnace 110, thus in melting gasification furnace 110
Inside will form coal packed bed.The top of melting gasification furnace 110 is formed with dome portion 101.That is, relative to fusion and gasification
The other parts of furnace 110 form wider space, wherein there are high-temperature reducing gas.Therefore, because high-temperature reducing gas, is packed into
The moulded coal in dome portion 101 is easy by dusting.However, the moulded coal prepared by the method for Fig. 1 has used biology as adhesive
Plastics, therefore calorific intensity with higher will not drop to melting gas by dusting in the dome portion of melting gasification furnace 110
Change the lower section of furnace 110.The lower section of melting gasification furnace 110 is moved to by the coal tar that the pyrolytic reaction of moulded coal generates and passes through air port
The oxygen of 130 supplies carries out exothermic reaction.As a result, moulded coal may be used as heat source, for making melting gasification furnace 110 keep high
Temperature.In addition, coal tar provides gas permeability, therefore the bulk gas that is generated below melting gasification furnace 110 and supplied from reduction furnace 120
Reduced iron can be easier and uniformly across the coal packed bed in melting gasification furnace 110.
Other than moulded coal above-mentioned, lump coal or coke can also be packed into melting gasification furnace 110 as needed.Melt gas
Change setting air port 130 on the outer wall of furnace 110 to be used to be blown into oxygen.Oxygen is blown into coal packed bed and forms combustion zone.Moulded coal exists
Combustion zone burning can generate reducing gas.
Fig. 4 schematically shows the molten iron preparation facilities 300 for using the moulded coal prepared in Fig. 1.The molten iron of Fig. 4 prepares dress
The structure for setting 300 is only intended to the illustration present invention, and the invention is not limited thereto.It therefore, can be by the molten iron preparation facilities 300 of Fig. 4
It is deformed into various forms.The structure of the molten iron preparation facilities 300 of Fig. 4 is similar to the structure of the molten iron preparation facilities 200 of Fig. 3, because
This identical part uses identical appended drawing reference, and description is omitted.
As shown in figure 4, molten iron preparation facilities 300 includes melting gasification furnace 110, reduction furnace 122, reduced iron compression set
140 and compression reduced iron reserve tank 150, wherein compression reduced iron reserve tank 150 can be omitted.
Prepared moulded coal is packed into melting gasification furnace 110.Moulded coal generates reducing gas in melting gasification furnace 110, and generates
Reducing gas be supplied to fluidized bed reduction furnace.Powder Supply of iron ore is to multiple reduction furnaces 122 with fluidized bed, from fusion and gasification
The reducing gas that furnace 110 is supplied to reduction furnace 122 flows powder iron ore and is reduced into reduced iron.Reduced iron is reduced iron compression dress
Compression reduced iron reserve tank 150 is stored into after setting 140 compressions.Compressed reduced iron is supplied from compression reduced iron reserve tank 150
It is melted to melting gasification furnace 110 and in melting gasification furnace 110.Moulded coal is supplied to melting gasification furnace 110 and becomes with gas permeability
Coal tar, therefore the lower section of melting gasification furnace 110 generate bulk gas and compressed reduced iron can be easier and uniformly
Ground is by the coal packed bed in melting gasification furnace 110, so as to provide good molten iron.
Below by experimental example, the present invention will be described in more detail.Following experimental examples are only intended to illustrate the present invention, the present invention
It is not limited to following experimental examples.
Embodiment
Experimental example 1
Prepare there is mean behaviors and granularity to be that 3mm is below as fine coal (moisture content is 10wt% or less) and accounts for 90%
Above 100 parts by weight of coal.
Starch is prepared by corn flour, the starch powder in preparation process through peracid treatment (is dissolved in water with 30 volume %
When, pH 4) 4 parts by weight are mixed with out mixed coal.Mixed coal is moved into pre- Hot mixer, steaming is blown into pre- Hot mixer
Vapour is preheated to 50 DEG C or more in advance and is mixed.Then, it is reloaded into kneader and adjusts the temperature inside kneader to 90
DEG C or more.At this point, the supply of the moisture in steam is 2 parts by weight, the residence time in kneader is 15 minutes.From kneader
The mixed coal of discharge stops 3 minutes to 5 minutes in drying machine (that is, gravity-feeder), and the hot wind for being blown into 120 DEG C is aspirated
(Suction)。
Mixed coal is carried out compression to prepare size being 64.5mm × 25.4mm × 19.1mm agglomerate shape with roll squeezer
Moulded coal.Through the compressive strength and drop strength and arrangement of following evaluation methods measurement moulded coal in the following table 1.
Experimental example 2
Other than the supply of the moisture in steam is adjusted to 3 parts by weight, preparation method is identical as experimental example 1.
Experimental example 3
Other than the supply of the moisture in steam is adjusted to 3.5 parts by weight, preparation method is identical as experimental example 1.
Experimental example 4
Other than the supply of the moisture in steam is adjusted to 4 parts by weight, preparation method is identical as experimental example 1.
Experimental example 5
In addition to the residence time in kneader is adjusted to 5 minutes and the supply of the moisture in steam is adjusted to 3 weights
It measures except part, preparation method is identical as experimental example 1.
Experimental example 6
In addition to the residence time in kneader is adjusted to 10 minutes and the supply of the moisture in steam is adjusted to 3 weights
It measures except part, preparation method is identical as experimental example 1.
Experimental example 7
In addition to the residence time in kneader is adjusted to 20 minutes and the supply of the moisture in steam is adjusted to 3 weights
It measures except part, preparation method is identical as experimental example 1.
Comparative example
As fine coal prepare that there are mean behaviors and granularity is 3mm 100 parts by weight of coal below.
The water-starch that 5 parts by weight of acetic acid aqueous solution and 4 parts by weight of starch of addition 5wt% mix in fine coal is prepared
Mixed coal.Kneader is added in prepared mixed coal and is heat-treated, then with roll squeezer carry out compression and prepare size be
The moulded coal of 64.5mm × 25.4mm × 19.1mm agglomerate shape.The compressive strength of moulded coal is measured by following evaluation methods and is fallen
Lower intensity simultaneously arranges in the following table 1.
Adhesive ingredients confirmation experiment
Moulded coal 10g is removed to be crushed.Then, it is filtered after being impregnated in ethyl alcohol at least one day.Acquired solution is revolved
Rotatable evaporator (rotary evaporator) is concentrated, and is then diluted in the water of 10mL, then instill iodine solution 1 and drop to 2
Drop.Utilize ultraviolet spectrometer (UV spectrometer) measurement amylose, the absorption intensity change rate of amylopectin.Straight chain
Starch occurs at 620nm, and amylopectin occurs at 540nm.Experimental example 1 (being indicated with X), experimental example 2 are (with zero table in Fig. 5
Show) and experimental example 3 (being indicated with) in the case where being used in mixed way amylose/amylopectin, the amylose the high closer
Amylose absorption curve, can be confirmed and be formed with biological plastics in moulded coal.In contrast, in the feelings of comparative example (being indicated with Δ)
Under condition, close to the absorption curve of amylopectin, it can be confirmed and do not form biological plastics and exist in the form of starch.
Compressive strength evaluation experimental
The bottom of prepare in experimental example 1 to 7 and comparative example 30 moulded coals is fixed, presses straightening from top with certain speed
Average value is shown after to crest when being crushed, and measuring broken.
Drop strength evaluation experimental
The moulded coal prepared in experimental example 1 to 7 and comparative example is fallen 4 times from high 5m from the ground, with relative to entire type
The percentage of coal weight come indicate keep granularity be 10mm or more shape moulded coal weight ratio.
Experimental result
The experimental result of the moulded coal prepared in experimental example 1 to 7 above-mentioned and comparative example is summarized in table 1 below.
[table 1]
As shown in table 1, the intensity of the moulded coal prepared in experimental example 1 to 7 is better than the comparative example using water-starch.
The present invention can implement to be not limited to the embodiment described in a variety of different ways, of the art common
Technical staff is understood that in the case where not changing technical idea or essential feature of the invention through other concrete mode energy
It is enough to implement the present invention.It will therefore be appreciated that the above embodiments are exemplary, rather than it is used to limit of the invention.
Symbol description
10: fine coal supplies storehouse
20: the starch powder through peracid treatment supplies storehouse
30: mixing machine
40: pre- Hot mixer
50: kneader
60: drying machine
70: molding machine
100: moulded coal preparation facilities
110: melting gasification furnace
120,122: reduction furnace
130: air port
140: reduced iron compression set
150: compression reduced iron reserve tank
200,300: molten iron preparation facilities
101: dome portion
Claims (17)
1. a kind of moulded coal preparation method, the dome portion that the moulded coal is fitted into melting gasification furnace in molten iron preparation facilities is quickly added
Heat, the molten iron preparation facilities include to be packed into the melting gasification furnace of reduced iron and be connected to melting gasification furnace and provide reduction
The reduction furnace of iron, the moulded coal preparation method includes:
The step of fine coal is provided；
Starch powder through peracid treatment is mixed into the step of fine coal is to prepare mixed coal；
The step of mixed coal is heat-treated；And
The step of mixed coal through Overheating Treatment is formed to prepare moulded coal.
2. moulded coal preparation method according to claim 1, wherein
In described the step of preparing mixed coal, the starch powder through peracid treatment is prepared by the inclusion of the method for following steps: will
The biomass of crushing is impregnated in the aqueous solution of acid and isolates the step of amyloid filtrate by the step of biomass is crushed
Suddenly, by the filtrate isolated clean into pH be 3 to 5.5 the step of and the step of the filtrate of cleaning is dried.
3. moulded coal preparation method according to claim 1, wherein
In described the step of preparing mixed coal, when the starch powder through peracid treatment is dissolved in water with the concentration of 30 volume %
When, pH is 3 to 5.5.
4. moulded coal preparation method according to claim 1, wherein
In described the step of preparing mixed coal, the average particle size of the starch powder through peracid treatment is 0.01mm to 1mm.
5. moulded coal preparation method according to claim 1, wherein
In described the step of preparing mixed coal, relative to the fine coal of 100 parts by weight, 1 parts by weight to 10 parts by weight are added
The starch powder through peracid treatment.
6. moulded coal preparation method according to claim 1, wherein
Described the step of preparing mixed coal 50 DEG C to 65 DEG C at a temperature of carry out.
7. moulded coal preparation method according to claim 1, wherein
The starch powder transformation through peracid treatment in the heat treatment the step of, by the heat treatment, in the mixed coal
At biological plastics.
8. moulded coal preparation method according to claim 1, wherein
The step of heat treatment includes the step of supplying steam to the mixed coal.
9. moulded coal preparation method according to claim 8, wherein
The method of supplying of the steam is the fine coal relative to 100 parts by weight, and the moisture in the steam reaches 1 parts by weight
To 5 parts by weight.
10. moulded coal preparation method according to claim 8, wherein
The temperature of the steam is 120 DEG C to 300 DEG C.
11. moulded coal preparation method according to claim 1, wherein
In the heat treatment the step of, the temperature of the mixed coal is 60 DEG C to 200 DEG C.
12. moulded coal preparation method according to claim 1, wherein
It also include the step of the mixed coal through Overheating Treatment is dried after the heat treatment the step of.
13. moulded coal preparation method according to claim 1, wherein
Prepared moulded coal includes the moisture and surplus of the biological plastics of 1 weight % to 10 weight %, 3 weight % to 15 weight %
Coal, the biological plastics by 25 weight % to 70 weight % amylopectin and 30 weight % to 75 weight % straight chain form sediment
Powder composition.
14. a kind of moulded coal preparation facilities, the dome portion that the moulded coal is fitted into melting gasification furnace in molten iron preparation facilities is quickly added
Heat, the molten iron preparation facilities include to be packed into the melting gasification furnace of reduced iron and be connected to melting gasification furnace and provide reduction
The reduction furnace of iron, the moulded coal preparation facilities includes:
Fine coal supplies storehouse；
Starch powder through peracid treatment supplies storehouse；
Storehouse and the starch powder supply storehouse reception fine coal through peracid treatment and the starch powder through peracid treatment are supplied from the fine coal
End is mixed and is prepared the mixing machine of mixed coal；
The kneader that mixed coal is heat-treated is received from the mixing machine；And
The mixed coal through Overheating Treatment, which is received, from the kneader carries out molding molding machine.
15. moulded coal preparation facilities according to claim 14, wherein
It also include temperature and the progress that the mixed coal is preheating to 50 DEG C to 65 DEG C between the mixing machine and the kneader
The pre- Hot mixer of mixing.
16. moulded coal preparation facilities according to claim 14, wherein
The kneader is connected with steam supply pipe, receives steam from the steam supply pipe and is heat-treated to mixed coal.
17. moulded coal preparation facilities according to claim 14, wherein
It also include the drying machine that the mixed coal through Overheating Treatment is dried between the kneader and the molding machine.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160132392A KR101827997B1 (en) | 2016-10-12 | 2016-10-12 | Method and apparatus for manufacturing coal briquettes |
| KR10-2016-0132392 | 2016-10-12 | ||
| PCT/KR2017/010251 WO2018070681A1 (en) | 2016-10-12 | 2017-09-19 | Method for manufacturing briquette and apparatus for manufacturing briquette |
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| Publication Number | Publication Date |
|---|---|
| CN109804052A true CN109804052A (en) | 2019-05-24 |
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| CN201780063205.6A Pending CN109804052A (en) | 2016-10-12 | 2017-09-19 | Moulded coal preparation method and moulded coal preparation facilities |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3527646A4 (en) |
| KR (1) | KR101827997B1 (en) |
| CN (1) | CN109804052A (en) |
| WO (1) | WO2018070681A1 (en) |
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| KR102104556B1 (en) * | 2018-08-10 | 2020-04-24 | 주식회사 포스코 | Method and apparatus for manufacturing of coal briquettes |
| KR102311318B1 (en) * | 2019-11-07 | 2021-10-08 | 주식회사 포스코 | Coal briquettes, and method for manufacturing the same |
| JP7415964B2 (en) * | 2021-01-21 | 2024-01-17 | Ｊｆｅスチール株式会社 | How to make briquettes |
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| Publication number | Publication date |
|---|---|
| EP3527646A1 (en) | 2019-08-21 |
| KR101827997B1 (en) | 2018-02-13 |
| WO2018070681A8 (en) | 2018-05-17 |
| EP3527646A4 (en) | 2019-10-23 |
| WO2018070681A1 (en) | 2018-04-19 |
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Application publication date: 20190524 |