CN102959058B - Method for producing pressed articles containing coal particles - Google Patents

Method for producing pressed articles containing coal particles Download PDF

Info

Publication number
CN102959058B
CN102959058B CN201180033650.0A CN201180033650A CN102959058B CN 102959058 B CN102959058 B CN 102959058B CN 201180033650 A CN201180033650 A CN 201180033650A CN 102959058 B CN102959058 B CN 102959058B
Authority
CN
China
Prior art keywords
stampings
coal particle
impregnation steps
coal
processed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201180033650.0A
Other languages
Chinese (zh)
Other versions
CN102959058A (en
Inventor
H.赫克曼
J.施托金格
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primetals Technologies Austria GmbH
Original Assignee
Siemens VAI Metals Technologies GmbH Austria
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens VAI Metals Technologies GmbH Austria filed Critical Siemens VAI Metals Technologies GmbH Austria
Publication of CN102959058A publication Critical patent/CN102959058A/en
Application granted granted Critical
Publication of CN102959058B publication Critical patent/CN102959058B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C10L5/04—Raw material of mineral origin to be used; Pretreatment thereof
    • 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
    • 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
    • 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
    • C10L5/105—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with a mixture of organic and inorganic 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
    • 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
    • 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
    • C10L5/146—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders with wax, e.g. paraffin wax
    • 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
    • C10L5/16—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders with bituminous binders, e.g. tar, pitch
    • 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
    • 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
    • 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
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • C21B13/002—Reduction of iron ores by passing through a heated column of carbon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/244—Binding; Briquetting ; Granulating with binders organic
    • C22B1/245—Binding; Briquetting ; Granulating with binders organic with carbonaceous material for the production of coked agglomerates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

The invention relates to a method for producing pressed articles containing coal particles, to the pressed articles obtained in this way, and to the use of the pressed articles in methods for producing pig iron in a fixed bed or in methods for producing carbon carriers for methods for producing pig iron in a fixed bed. To this end, at least a partial amount of the coal particles is subjected to at least two impregnation steps in which they are impregnated with at least one substance before being mixed with a binder system containing water.

Description

Contain the preparation method of the stampings of coal particle
Technical field
The present invention relates to the application in the method for preparation method, thus obtained stampings and described stampings containing the stampings of the coal particle carbon support in the pig iron manufacture method of fixed bed or in the pig iron manufacture method for the preparation of fixed bed.
Prior art
In pig iron manufacture method in fixed bed, for example, in melting gasifier, or in the method for carbon support in the pig iron manufacture method for the preparation of in fixed bed, for example, in the coke for the preparation of blast furnace, the for example agglomerate of the stampings that contain coal particle (Brikett) using must have certain anti-drop intensity (Sturzfestigkeit) and ultimate compression strength from press discharging.For example, although in order to have inevitably and to fall in the process that is loaded into technique, transferring to other conveying belt or in the time being loaded into material storehouse from a conveying belt, as far as possible substantially keep the original size of stampings, anti-drop intensity is necessary.For after being loaded into material storehouse or fixed-bed reactor, although stacked material layer can be exerted pressure, but still keep the original size of stampings, ultimate compression strength is necessary.The requirement of these intensity is also summarised under term low temperature intensity.
Except low temperature intensity, when the hot strength of stampings-particularly use in thermal process-be also a standard of its suitability.In pig iron manufacture method; for example in melting gasifier or blast furnace, use containing the stampings of Bed for Fine Coal particle in particular cases; term hot strength is a) intensity based on stampings remaining semicoke particle or coke granule after the pyrolysis of high-temperature zone, and b) based on these semicoke particles or coke granule containing CO 2hot gas chemical corrosion after intensity.The size that the bottom line of hot strength will make stampings be converted into by pyrolysis this particle existing after semicoke particle or coke granule obtains the basic possibility that keeps becoming.Therefore,, in the pig iron manufacture method in fixed bed, do not wish to produce particulate by stampings or coke granule before being loaded in fixed bed or in fixed bed inside, because can make like this perviousness variation of fixed bed.In pig iron manufacture method in particular cases, this ventilation property that had both related to fixed bed also relates to the discharge (Drainageverhalten) of the fixed bed liquid towards pig iron and slag.The perviousness of fixed bed can variation, therefore will anticipate to its productivity, its can demand than (spezifisch) with and quality product generation adverse influence.
Known from WO 02/50219A1, prepare the stampings with sufficient low temperature intensity from Bed for Fine Coal particle by means of the binder system of unslaked lime and molasses.Wherein the Bed for Fine Coal particle of fine coal and unslaked lime are mixed, mixture is left standstill to carry out slaking reaction (L schreaktion) with the moisture from coal particle, then sneak into molasses, the mixture wherein obtaining is mediated and is finally pressed into stampings by it.
There are some to demonstrate extra high water-retaining capacity, are particularly characterized as the coal of high natural humidity.But for the application in the pig iron is manufactured, the humidity of stampings should be too not high, is up to 7 % by weight.This is can play a part to bring burden on energy during for pig iron manufacture or for the preparation of carbon support for pig iron manufacture method at stampings due to this humidity, because the specific consumption of carbon support can significantly raise along with the humidity of stampings.Therefore the coal that humidity is higher should be dried before being processed into stampings.Except the not wetting pore volume having existed in undried coal, when dry, water is discharged and is produced other pore volume from cavity.Not wetting pore volume can absorb water or the water-bearing media of respective amount.Described other pore volume also can be reuptaked water or water-bearing media certainly.In addition, some coal also tend to-particularly when strong dry-produce other pore volume because particle is impaired.While the coal with high water-retaining capacity being dried to acceptable humidity before the method described in WO02/50219A1 is for the preparation of stampings, produce other large pore volume.Therefore, dry coal particle can absorb very most for produce the required molasses that are interpreted as the aqueous solution of bonding on particle surface in its hole.Therefore the coal that has for those molasses addition≤10 % by weight (weighing scale of the coal based on to be processed) conventionally using, cannot obtain enough intensity for stampings.But in order to be prepared with based on molasses binding agent the stampings of sufficient intensity, necessary
-abandon by the not wetting pore volume of dry generation, or
-add the more molasses of volume, the amount of increase is absorbed by pore volume and is not therefore bonded in coal particle surface.
But because process economics is learned, these measures are undesirable.
Even for the coal of low humidity in essence, they need to not to be up to the stampings humidity of 7 % by weight and to be dried in order to realize, a part of molasses also can absorb in the hole of coal particle.But molasses contain to carbon and containing CO 2the reaction of hot gas play the component of katalysis, the therefore thermal region at temperature >800-1000 DEG C at the fixed bed of manufacturing for the pig iron particularly, depends on pressure, solid carbon and CO 2level of response increase according to Boudouard reaction.Given this, can be reduced by the hot strength of the semicoke particle getting by pyrolysis with the stampings of molasses processing or coke granule.
The use pitch of advising in WO9901583A1 does not propose such problem relevant with molasses as binding agent.But prepare stampings with pitch and there is very high binding agent cost.
The moisture bitumen emulsion of the use advised in AT005765U1 has reduced the consumption of pitch the highlyest to have exceeded 50% as binder system.But show in practice, in order to produce stable stampings in the time using such bitumen emulsion, the coal of application must have the humidity that is significantly higher than 5 % by weight.The problem existing is in addition, emulsion can be uniformly distributed as far as possible in material (Gut) inside of one-tenth stampings to be processed and correspondingly particle surface can be by emulsion before even soaking, the hole existing in coal particle can absorb moisture bitumen emulsion, or can from emulsion, take water away and therefore make emulsion unstable because drop condenses.Emulsion can reduce as the effect of binding agent thus.
In WO-A-2004/020555, described before adding aqueous binders with wet or dry sludge (Schlamm) or dust pre-treatment fine coal, then with unslaked lime (Brantkalk) pre-treatment.
EP-A-0368041 discloses a kind of moisture starch suspension and has been combined with silicone dispersion as binding agent, and wherein the water-retaining capacity of briquet it is believed that and is lowered.
US-A-1551966 discloses with for example oil fuel of nonaqueous binding agent or bituminizing coal, and object is to improve fuel value.
US-A-2310095 discloses by the hole in moisture bitumen emulsion sealing dehydration brown coal.The binding agent using is for example pitch of nonaqueous binding agent or coal tar, is not the moisture binder system as in the present invention.
summary of the invention
Technical purpose
The object of this invention is to provide a kind of method of preparing stampings, these shortcomings of prior art are wherein overcome, even with use must pre-dried coal particle time, using than the stampings that also can prepare there is enough green strength (Gr ü nfestigkeit) and hot strength in the moisture bonding system situation of currently known methods small amount.
Technical solution
This object is by being solved a kind of preparation containing the method for the stampings of coal particle, wherein said coal particle mixes with moisture binder system and the mixture wherein obtaining is further processed into stampings by compacting, it is characterized in that, before mixing with aqueous binders system, the coal particle of amount stands at least two impregnation steps at least partly, therein at least one material dipping for described coal particle.
Beneficial effect of the present invention
In the time of dipping, the hole neutralization of described material or infiltration coal particle correspondingly stops the component of aqueous binders system to be infiltrated by filling pore.Or the outlet position (also referred to as pore-throat portion) in described material alluvial hole in coal particle surface and stop the component of aqueous binders system to be infiltrated in hole by plugging hole neck.
The required aqueous binders system of the object that bonds stops in this way in coal particle surface in order no longer can to meet this bonding object after penetrating in hole.Correspondingly, can infiltrate the method in hole than aqueous binders system, reduce the amount of required aqueous binders system.
Preferably, the coal particle of one-tenth stampings to be processed, or its part amount were at least dried to humidity and are less than 8 % by weight before impregnation steps, were preferably dried to humidity and were less than 7 % by weight.Particularly preferably humidity is being greater than/is equaling 4 % by weight-the be less than scope of 8 % by weight, and more particularly preferably humidity is being greater than/is equaling 5 % by weight-the be less than scope of 7 % by weight.
Except water, described aqueous binders system can contain one or more other component.
Described impregnation steps can be by steaming (Bedampfung) coal particle, with described material sprinkling coal particle with described material, described material is sneaked in the motion material body (Sch ü ttung) of coal particle or described material is sneaked in the fluidized-bed of coal particle and form.
The coal particle of the part amount of one-tenth stampings to be processed or all coal particle of amount can stand at least two impregnation steps.Also can carry out three, four, five, six, seven, eight, nine, ten or more impregnation steps.If the coal particle of whole amounts of one-tenth stampings to be processed stands at least two impregnation steps, in the coal particle situation of whole amounts of one-tenth stampings to be processed, there will be above-mentioned dipping effect.
If the coal particle of the part amount of one-tenth stampings to be processed stands at least two impregnation steps, the soaker consuming during than the coal particle situation of whole amounts of dipping one-tenth stampings to be processed still less.But in the time that measuring, part there will be above-mentioned dipping effect also therefore to contribute to improve the character of stampings.
The first dipping has improved efficiency and/or the persistence of flooding below.In the time only having an impregnation steps, along with " age " of stampings increases, can cause the effect being produced by dipping to reduce, for example its mode is that agglomerate becomes fragile after certain hour.For example, because not impregnated dose of hole is sealed completely or soaker is peeled off from hole wall, for example, because cooling and/or atrophy may cause that the effect being produced by dipping reduces.
If carry out two impregnation steps, this effect can reduce or be suppressed.Wherein particularly advantageously, use different soaker for first impregnation steps and second impregnation steps.For example, then can in second impregnation steps, carry out to sealing not yet completely after first impregnation steps or there is no the infiltration in blind hole and then sealed ,-because the soaker in second impregnation steps for example has different viscosity and/or coal particle is had to different wetting properties.
Maybe advantageously the coal particle of the coal particle of the part amount of one-tenth stampings to be processed or whole amounts can stand the impregnation steps more than two.After the impregnation steps of carrying out above remaining untight or not wetting hole can be in one of impregnation steps below dipping or wetting or seal.
In all impregnation steps, can flood described coal particle with identical material.In different impregnation steps, also can use different materials.
Material in order to dipping uses preferably as liquid form or is used for dipping by means of liquid.At the residing temperature of impregnation steps, to be for example the material of liquid as liquid.Although refer to that by means of the dipping of liquid for example using at the residing temperature of impregnation steps itself is not the liquid dipping that still material emulsified in liquid or that suspend carries out.Compared with using solid matter, improve thus or completely just likely in hole, infiltrate or plugging hole neck.
The material using when ensureing impregnation steps remains liquid state during impregnation steps, temperature when coal particle to be impregnated is preferably heated to material and is liquid.
According to an embodiment, be water in order to the material that floods coal particle at least one impregnation steps.
Then, in impregnation steps, water is absorbed in hole, and therefore this hole no longer demonstrates and be absorbed in the serious hope (Bestreben) that is transported to the component of the aqueous binders system of coal particle after impregnation steps.Therefore, in method so far, absorb in hole and therefore become invalid component for the bonding of stampings and can contribute to the bonding of stampings.
The stampings that flood by water conservation are at the content of the application mix thing for pig iron preparation technology of being combined with the carbon support with the humidity less than these stampings, and the water that enters pig iron manufacturing process has been restricted to acceptable degree.
According to another embodiment, be water-insoluble and/or hydrophobicity (wasserabsto β end) material in order to flood the material of coal particle at least one impregnation steps.
If filled with such material in hole described in impregnation steps, and such material coating for wherein said hole wall, the serious hope that hole absorbs the component of aqueous binders system can decline.If the outlet position in the hole in coal particle surface is sealed by such material, the component of aqueous binders system no longer can be infiltrated in hole.Therefore, absorb so far in hole and therefore become invalid component for the bonding of stampings and can contribute to the bonding of stampings.
Described water-insoluble and/or lyophobic dust preferably belongs to the material group being made up of the organic product of wax, coking plant or refinery and plastics or plastic waste.Also can be waste oil.Also can be pitch.These materials conventionally in large quantities cost advantageously supply.
Wherein said impregnation steps advantageously at described water-insoluble and/or lyophobic dust with liquid, at temperature when particularly thick liquid exists, carry out.Thick liquid in this meaning refers to that its viscosity at least 1Pas and the highest 100Pas, for example, is the liquid of 10Pas.Under these conditions, described species distribution is on the surface of coal particle and penetrate into the outlet position in hole, but hardly can be in the inside in hole.Thus, remain low in consumption water-insoluble described in impregnation steps and/or lyophobic dust.Advantageously, when described water-insoluble and/or lyophobic dust is cooling in the outlet position in hole, be fixed in coal particle surface.
According to another embodiment, be the aqueous solution of a kind of material or substance mixture in order to flood the material of coal particle at least one impregnation steps.For example it is molasses, and these molasses are the aqueous solution of the mixture of carbohydrate and other crude substance.In principle, can use the material that has improved the hot strength of stampings and all types of dissolvings of low temperature intensity, starch or the xylogen alkali lye of the alkali cleaning (Ablaugen) for example, during from slurrying.
Preferably use and be converted into the material of water-insoluble substance or the aqueous solution of substance mixture by thermal treatment and/or chemical reaction.Having realized thus the effect being produced by this material or substance mixture not have in the water of aqueous binders system, dissolve and from hole, flush out and reduce because of them.
According to another embodiment, be the aq suspension of solid colloid in order to flood the material of coal particle at least one impregnation steps, wherein said solid has the water of scolding (wasserabweisend) character.The example is colloidal state talcum, graphite or the wax suspension in water.If solid deposits in hole or in pore-throat portion, can make entering of aqueous binders system become difficulty because scolding the high surface tension of water solid.
According to another embodiment, be the emulsion that contains water and for example pitch of carbonaceous material (Bitumina), the crude tar oil (Rohteere) obtaining from bone coal, pitch, wax, oil in order to flood the material of coal particle at least one impregnation steps.In the time that this emulsion is infiltrated in hole, in the thin layer that carbonaceous material deposits on hole surface.When pyrolysis, generate carbon-coating from this thin layer.Than the embodiment of the material thin layer that wherein do not deposit in hole, this thin layer has reduced stampings for containing CO 2the reactivity of hot gas.When the described material of the coal particle in order to dipping portion component in impregnation steps is not emulsion, for example, in the time that described material is pitch, also there will be such effect.
The appearance of this effect be the carbon-coating being produced by described material contain a small amount of or containing for containing CO 2the reaction of hot gas have the material of katalysis.In contrast, should be processed into the coal particle of stampings or the compound that material contains katalysis, for example iron or alkali (Alkalien).The reactivity ratio of the stampings that carbon-coating covered that correspondingly, its surface and hole are produced from described material does not have the stampings of this carbon-coating lower.
Needed pre-dried coal particle before stampings are processed in use time, consider not advantageously to be advanced to the significantly humidity lower than 5 % by weight by being dried from economic cause, be up to the humidity of 4 % by weight.Thus, limited due to dry generate other pore volume and correspondingly in impregnation steps less material absorbed by hole.Correspondingly in impregnation steps, consume less material.In addition while being dried,, equipment and energy consumption are inevitable lower.
Under the amount of the material (being soaker) adding in impregnation steps, be limited to 0.5 % by weight, preferably 1 % by weight, is above limited to 5 % by weight, preferably 3 % by weight, and particularly preferably 2 % by weight, the material based on one-tenth stampings to be processed is coal particle meter.Adding is nonsensical higher than the soaker of 5 % by weight economically.While adding the soaker that is less than 0.5 % by weight, dipping no longer includes effect.
According to the inventive method embodiment, described binder system contains molasses and unslaked lime or white lime.It also can be made up of these components.
According to another embodiment, described binder system contains molasses and for example combination of phosphoric acid, sulfuric acid, nitric acid of strong inorganic acid.
According to the inventive method embodiment, described binder system contains the emulsion of pitch in water.It also can be made up of these emulsions.
According to another embodiment, the product of alkali cleaning when described binder system contains from slurrying, starch, Mierocrystalline cellulose, radish slitting (R ü benschnitzel), waste paper fibre (Altpapierschliff), xylon or such as carboxymethyl cellulose of long-chain polyelectrolyte.
Because the shortcoming that the binder system that contains unslaked lime or white lime has is unslaked lime CaO and white lime Ca (OH) 2because katalysis has improved stampings with respect to containing CO 2the reactive behavior of hot gas, the advantage not having containing the embodiment of unslaked lime or white lime has been to provide has the stampings compared with low reaction activity by contrast.
According to the inventive method embodiment, also the particle of the iron content of mixing with coal particle or oxides-containing iron is processed.
According to the inventive method special form (Auspr gung), described stampings after compacting through heat-treated.At the temperature of rising compared with compacting, heat-treat.Described thermal treatment produces the effect of stampings are dry and/or sclerosis.Described thermal treatment can be carried out at the preferably >=temperature of 250 DEG C to≤350 DEG C, and wherein irreversible chemical process can change binder component.For example water miscible binder component can be transformed into water-insoluble compound.
The compound generating in this transformation can contribute to the intensity of stampings.
In the binder system situation that contains molasses, for example molasses change by caramelize (Karamellisierung).
According to the inventive method special form, described coal particle after impregnation steps and before mixing with moisture binder system through heat-treated.Described thermal treatment produces dry effect.For the situation that has solution or emulsion in hole, described thermal treatment produce in addition make the concentrated effect of solution, suspension or emulsion and correspondingly produce hole inwall dissolved, effect that component that suspend or emulsification applies.Except the aqueous binders system of adding afterwards, hot strength and low temperature intensity that described thermal treatment can improve stampings contribute.
In addition, described thermal treatment can produce the effect that the hole inside coating first generating due to thermal treatment is transformed into water-insoluble compound, or is transformed into and has reduced coal particle with respect to containing CO 2the effect of compound of reactive behavior of hot gas.Described heat treated top temperature limits by the pyrolysis of coal particle, is 350 DEG C.Lowest temperature when this thermal treatment is 150 DEG C.
If use identical aqueous emulsion for dipping, using as aqueous binders system as this emulsion, the amount of the aqueous binders system that the amount ratio adding in impregnation steps adds while mixing subsequently still less.For example in impregnation steps, make pitch in water-emulsion and during as binder system, in impregnation steps, add 2-3 % by weight, and add 7-10 % by weight as binder system later.
If use the identical aqueous solution of material or substance mixture for described dipping, using as aqueous binders system as described solution, these situations are applicable equally.For example in impregnation steps, use molasses and during as binder system, in impregnation steps, add 3-5 % by weight, and add 6-8 % by weight as binder system later.Wherein also comprise the boundary value of given scope.In the case, after adding, need to heat-treat in impregnation steps, to remove carrier liq water, its degree is to make the material of described emulsification or the material of dissolving in hole or pore-throat portion deposition.Those holes are capped or pore-throat portion is blocked thus.In a word, therefore in order to prepare stampings, the aqueous binders system needing is few when not having impregnation steps to be prepared.
Can be by known method, for example those described in WO 02/50219A1 or AT005765U1, or by being suitable for coal particle and moisture binder system to be processed into any method of stampings, after impregnation steps, be processed into stampings.
For example according to compared with the method for W002/50219A1, in the time preparing stampings, after carrying out impregnation steps with water-insoluble and/or hydrophobic material, just add aqueous binders system to reduce process costs according to the present invention with traditional method.During preparing stampings by aqueous binders system, avoid coal to absorb water, reduce on the one hand the unit consumption of coal in pig iron manufacture method, in this pig iron manufacture method, use stampings or the coke by its acquisition, because exist less from the water of binder system with the little energy that correspondingly must expend for its evaporation in stampings.On the other hand use can save the traditional method of preparing stampings in method of the present invention in due to from binder system, absorb that water occurs by further dry necessity of stampings, or reduced dry expending, realized thus energy saving.Because correspondingly can not set up or move for further dry device, maybe can reduce the size of described device and expending of operation, this is all same meaning for the decline of operation cost or the decline of cost of investment.
Other favourable effect as impregnation steps can show, according to the type of the material for flooding, and the CO of the semicoke generating in melting gasifier after stampings pyrolysis or the coke that obtained by stampings 2-reactive behavior reduces.For make semicoke in the fixed bed of melting gasifier or coke in the fixed bed of blast furnace from being charged to a surface until the direct gasification district arriving in oxygen jet or region, air port all keeps stable and promotes thus fixed bed to flow out mutually with melt liquid state the perviousness of penetrating gasification (Durchgasung), in the time moving melting gasifier, wish lower CO 2reactive behavior.Cover by the binding agent that the internal surface of hole of coal particle in stampings can no longer be contained to the material that promotes reactive behavior by dipping, realize the CO of semicoke or coke 2the reduction of reactive behavior.For example binder component molasses contain alkali as the material that promotes reactive behavior.If by for example flooding with the material that contains pitch (Bitumina) or wax the internal surface of having avoided molasses coverage holes, than semicoke or coke by means of not having the method for impregnation steps to obtain, described CO 2reactive behavior also reduces.
COREX or the FINEX method manufactured for the pig iron in melting gasifier fixed bed, often join a small amount of shot coke in the coal of application, to improve the perviousness of fixed bed.In the time of the stampings that use the present invention to prepare or coke prepared therefrom, by hot CO 2suppressing semicoke or coke granule becomes flexible and therefore resists particle breakdown.Namely, in the stampings situation of preparing in the present invention, also found than the thermo mechanical stability of the semicoke of the stampings improvement of preparing in a conventional manner.Thermo mechanical stability is based on hot strength aspect, and this aspect relates to after stampings pyrolysis the intensity of in high-temperature zone remaining semicoke particle or coke granule.Thermo mechanical stability is based on a kind of measuring method, and stampings stand thermal shocking program in the method, and the semicoke wherein obtaining stands rotary drum (Trommlung).The thermo mechanical stability of described improvement shows as the stampings that the coarse fraction of the semicoke of experience rotary drum process prepared than tradition and expands by dipping of the present invention.
Compared with prior art, use the fixed bed of the semicoke charging that the stampings of preparing from the present invention get by pyrolysis can realize obviously better ventilation property and better outflow property of fixed bed.Therefore, the reactive behavior of semicoke is improved and is made reduce or avoid becoming possibility completely to the coke addition in the coal of COREX or FINEX application.
In coking technology field, the tap density of the known coal of applying by raising has been improved the quality of coke prepared therefrom.By just using a large amount of coals for the preparation of metallurgical coke completely the coal compacting of application.Except coking factory (Stampfkokereien), therefore develop the method modification for the coking plant with windrow operation form, it is designed with pelletizing briquetting or the pelletizing briquetting partly of the coal of application.But from the viewpoint of today; due to economic cause pelletizing briquetting that bituminous matter binding agent carries out, due to hot-bulb group's briquetting of healthy protect reason or use be derived from coal tar binding agent pelletizing briquetting and use molasses or the pelletizing briquetting of comparable binding agent, there will be problem because brought undesirable material in coke.
Even if making, the stampings in the case of using application material, the binder component of the consumption reduction of binding agent or prevention promotion reactive behavior is produced to harmful effect, the method for the preparation of stampings according to the present invention becomes possibility.
Described stampings can be for example from the agglomerate of compaction apparatus or casting scar (Sch ü lpen).
The coal particle that described stampings contain the highest 97 % by weight, the component of the binder system of the highest 15 % by weight, and water-insoluble and/or lyophobic dust, or thering is the solid of repellency matter, the material based on one-tenth stampings to be processed is the weighing scale of coal particle, is limited to 0.5 % by weight under their content, preferably 1 % by weight, on be limited to 5 % by weight, preferably 3 % by weight, particularly preferably 2 % by weight.
Wherein the component of the binder system of 15 % by weight is understood like this, water not as the component of binder system be included into-also 15 % by weight are the nonaqueous components based on binder system.
According to a form of implementation, described stampings also contain the particle of iron content or oxides-containing iron.Dust or waste residue that such particle generates for example can stem from pig iron manufacture or steel-making time.
Embodiment
Table 1 has shown the evaluation that stampings preparation test is carried out with regard to anti-drop intensity (SF) and some Compressive Strength (PDF) aspect of stampings in experimental stage scope.Wherein said stampings the method according to this invention is flooded and prepares the coal particle of part amount by two impregnation steps or by an impregnation steps.Stampings are pelletizings.
The system that the aqueous binders system using is made up of molasses and unslaked lime.The water-content of molasses itself is 20 quality %.
The common molasses in market below using in binder system: the cane molasses of Tate & Lyle company, its total sugar content is 51%.The unslaked lime of what unslaked lime in binder system used is Walhalla Kalk company is white microlith ash.
In order to flood the common hydraulic efficiency oil in use pitch and market as soaker.The pitch using is the Mexphalte 55 of Shell company.The common hydraulic efficiency oil in market using under application conditions than pitch thin liquid shape more.
Mix asphalt soaker in the FM130D type colter formula mixing machine of L dige company, other mixture is prepared in the R08 of Eirich company W type batch mixed machine.
The kneader that is used for the K ppern company of kneading process is made up of vertical cylindrical vessel, and an axle with the central rotation of mediating arm passes through this container.
The 52/10 type test roll squeezer by means of K ppern company is prepared blank stampings.There is 20cm for the selected pincushion specifications of blank stampings (Format) 3nominal volume.The feed of material to be pressed carries out by means of gravity divider.Wherein prepare by test roll squeezer the complex body being formed by multiple blank stampings.In this complex body, all there are blank stampings at the fringe region of complex body and the central zone of complex body.
In order to obtain single blank stampings or single stampings for measuring anti-drop intensity or some Compressive Strength, destroy complex body along point gap between single blank stampings.Conventionally, described complex body is will be broken into single blank stampings from test roll squeezer out time.
After kneading process in kneader, suppress in test roll squeezer the mixture of kneading as material to be pressed, to prepare blank stampings.
Wherein obtain blank stampings or soft-in professional term with affixe " blank " represents-with harden, to make final stampings.This sclerosis for example can be by depositing and/or thermal treatment and be dried at least in part to carry out in air.
After compacting, to single blank stampings respectively at once, in professional term, be blank form, test its anti-drop intensity (SF) and some Compressive Strength (PDF).The result of this test is presented at " at once " hurdle for PDF and SF.In air, harden respectively 1 hour and harden in air and repeat the measurement of anti-drop intensity and some Compressive Strength after 24 hours.The result of this test is presented in " 1 hour " and " 24 hours " hurdle.
In the fall down test (according to ASTM D440) for determining anti-drop intensity, the blank stampings sample that 2kg is heavy or by the stampings sample that hardens at air drying or heated drying through drop pipe from the height of 5m drops to receiving vessel 4 times, described receiving vessel bottom is configured to solid steel plate form.The diameter of drop pipe is 200mm, and the diameter of collection container is 260mm.Steel plate thickness is 12mm.After for the second time with four time is fallen, evaluate fall down test by screen analysis.The numerical value of anti-drop strength S F in table 1 represents respectively to fall the share of rear particle fraction >20 mm four times.
Use 469 type test machines of ERICHSEN company for measuring point Compressive Strength.In this testing method, by single blank stampings or by being clamped between two supports at the stampings of air drying or heated drying sclerosis, support is wherein connected with power receiving instrument, and support is above followed the tracks of (nachf ü hren) continuously by means of the worm drive of the compressive load for applying slow expansion.Support is below made with the disk of diameter 80mm, and support is above made with the round steel of the level of diameter 10mm.The speed of feed of support is above 8mm/min.Point Compressive Strength PDF be recorded as stampings blank or sclerosis before fracture the registration value representation in maximum bearing load-table 1 in newton's the equalization point Compressive Strength when pressing load and rupture.Blank stampings or stampings that the blank stampings of six region intermediates that carry out the complex body obtaining in comfortable test roll squeezers or stampings and six carry out the fringe region of the complex body obtaining in comfortable test roll squeezers are tested respectively.From the data calculating mean value obtaining, wherein give up respectively minimum value and maximum value test.Mean value provides in table 1.
Table 1:
。
In test 1, the mixture of the Ensham coal that the median particle d50 that uses Ensham coal that the median particle d50 of 70 % by weight is 0.95mm and 30 % by weight is 0.57mm as to be processed become the material of stampings be coal particle.The material of this one-tenth stampings to be processed is processed into stampings by an impregnation steps, wherein coal to be processed is dried and then reaches by granulation the granularity of hope.The coal particle wherein obtaining carries out impregnation steps in the situation that adding pitch.Then the coal particle obtaining wherein adds moisture binder system, is molasses in this case, adds the binder component unslaked lime in small, broken bits of solid simultaneously and mixes, and wherein mixing can be that a step or multistep are carried out.The mixture wherein obtaining is mediated and suppressed.The product obtaining after sclerosis is agglomerate.
Ensham coal is derived from the Ensham Resources company of Australian Queensland.
The usage quantity of the molasses in aqueous binders system is 8 % by weight, the weighing scale of the material based on one-tenth stampings to be processed.The water-content of molasses itself is 20 % by weight.Moisture binder system also comprises the unslaked lime of 2 % by weight except molasses, and the material based on one-tenth stampings to be processed is the weighing scale of Ensham coal.
The point Compressive Strength of different time points and anti-drop intensity are illustrated in the first field of table 1.
According in the test 2 of the inventive method, use the material of identical one-tenth stampings to be processed.Market common hydraulic efficiency oil dipping hold over night for all Ensham coals that use.The oil mass using is 2 % by weight, and the material based on one-tenth stampings to be processed is the weighing scale of Ensham coal.Then, all with oil impregnated Ensham coal bituminizing by what use.The pitch using for softening temperature be the Shell Mexphalte 50/70 of about 50 DEG C.The pitch amount using is 2 % by weight, the weighing scale of the material based on one-tenth stampings to be processed.Process after its unique impregnation steps with being similar to test 1 after bituminizing.Before adding molasses, be 53 DEG C with oil and the temperature of bituminous-treated coal.
Can recognize, two steps are flooded compared with the stampings of the stampings that obtain and a step dipping preparation and are had higher anti-drop intensity, have higher some Compressive Strength after 24 hours.
In part amount, a part also can with two steps or more multistep flood, and other parts are not flooded or only with a step dipping.
accompanying drawing summary
Summarize method of the present invention by means of the module schema of setting forth in Fig. 1-3 below.
According to Fig. 1, the coal 1 of one-tenth stampings to be processed (being agglomerate in the case) is dried 2, then reaches desirable granularity by granulation 3.Then the coal particle 4 wherein obtaining carries out the first impregnation steps 6 in the situation that adding the first soaker 5.Product 7 use second soaker 9 of the first impregnation steps 6 carry out the second impregnation steps 8.Then in the product 10 of the second impregnation steps 8, adding moisture binder system 11, is molasses in this case, adds from the solid binder component in small, broken bits of unslaked lime simultaneously and mixes 12, and wherein mixing 12 can be that a step or multistep are carried out.The mixture 13 wherein obtaining is mediated to 14 and then suppress 15.The product 17 of 16 rear acquisitions of hardening is agglomerate.
Conventionally, in the time of stampings produced according to the present invention, in the material of one-tenth stampings to be processed, add so moisture binder system molasses/unslaked lime, add by molasses and unslaked lime simultaneously, or add like this, successively add by molasses and unslaked lime.
In this process, use soaker for example when pitch preferably, first the molasses that provide for preparing stampings of part amount are provided, then mix, and add unslaked lime afterwards.After the mixture wherein obtaining is left standstill, add the molasses that provide for preparing stampings of its surplus.The molasses that provide for preparing stampings are provided generally for described part amount and its surplus.The advantage of this process is in the time that the material of one-tenth stampings to be processed mixes with moisture binder system, avoided or reduced unslaked lime and mediated in soft soaker.
In dipping situation, what may occur is fully to provide unslaked lime to carry out that the required moisture of slaking reaction-in the untreated situation of coal, this moisture of unslaked lime can obtain from coal particle.Need in the case the coal water of dipping to divide wetting.This can water or the moisture molasses of a part of binder system carry out.Can use maximum half, preferably maximum 1/3rd molasses for this reason.
The mark of accompanying drawing
1 coal
2 is dry
3 granulations
4 coal particles
5 first soaker
6 first impregnation steps
The product of 7 first impregnation steps
8 second impregnation steps
9 second soaker
The product of 10 second impregnation steps
11 moisture binder systems
12 mix
13 mixtures
14 mediate
15 compactings
16 sclerosis
The product obtaining after 17 sclerosis
Cited literature 2 inventory
Patent documentation
W002/50219A1
W09901583A1
AT005765U1。

Claims (16)

1. preparation is containing the method for the stampings of coal particle, wherein said coal particle mixes with moisture binder system and the mixture wherein obtaining is further processed into stampings by compacting, it is characterized in that, before mixing with aqueous binders system, the coal particle of amount stands at least two impregnation steps at least partly, at least one material dipping for described coal particle therein, wherein said material uses as liquid form or is used for dipping by means of liquid, with under the amount of substance adding, be limited to 0.5 % by weight in described at least two impregnation steps, material based on one-tenth stampings to be processed is the weighing scale of coal particle.
2. according to the method for claim 1, it is characterized in that, under the amount of substance adding in described at least two impregnation steps, be limited to 1 % by weight, the material based on one-tenth stampings to be processed is the weighing scale of coal particle.
3. according to the method for claim 1 or 2, it is characterized in that, impregnation steps by steaming coal particle with described material, with described material sprinkling coal particle, described material is sneaked in the motion material body of coal particle or described material is sneaked in the fluidized-bed of coal particle and form.
4. according to the method for claim 1 or 2, it is characterized in that, described in be used for flooding coal particle material be water.
5. according to the method for claim 1 or 2, it is characterized in that, described in be used for flooding coal particle material be water-insoluble and/or hydrophobic material.
6. according to the method for claim 1 or 2, it is characterized in that, described in be used for flooding coal particle material be a kind of aqueous solution of material or the aqueous solution of substance mixture.
7. according to the method for claim 1 or 2, it is characterized in that, described in be used for flooding coal particle material be the aq suspension of solid colloid, wherein said solid has repellency matter.
8. according to the method for claim 1 or 2, it is characterized in that, described in be used for flooding coal particle material be the emulsion that contains water and carbonaceous material.
9. according to the method for claim 1 or 2, it is characterized in that, on the amount of substance adding in described at least two impregnation steps, be limited to 5 % by weight, the material based on one-tenth stampings to be processed is the weighing scale of coal particle.
10. according to the method for claim 9, it is characterized in that, on the amount of substance adding in described at least two impregnation steps, be limited to 3 % by weight, the material based on one-tenth stampings to be processed is the weighing scale of coal particle.
11. according to the method for claim 9, it is characterized in that, on the amount of substance adding, is limited to 2 % by weight in described at least two impregnation steps, and the material based on one-tenth stampings to be processed is the weighing scale of coal particle.
12. according to the method for claim 1 or 2, it is characterized in that, described binder system contains molasses and unslaked lime or white lime.
13. according to the method for claim 1 or 2, it is characterized in that, described binder system contains the emulsion of pitch in water.
14. according to the method for claim 1 or 2, it is characterized in that, also the iron content containing in the mixture of coal particle or the particle of oxides-containing iron is processed.
15. according to the method for claim 1 or 2, it is characterized in that, stampings are heat-treated after compacting.
16. according to the method for claim 1 or 2, it is characterized in that, described coal particle was heat-treated after impregnation steps before mixing with aqueous binders system.
CN201180033650.0A 2010-07-12 2011-07-08 Method for producing pressed articles containing coal particles Expired - Fee Related CN102959058B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATA1179/2010A AT510135B1 (en) 2010-07-12 2010-07-12 PROCESS FOR PREPARING PRESS LENDS CONTAINING COAL PARTICLES
ATA1179/2010 2010-07-12
PCT/EP2011/061619 WO2012007385A1 (en) 2010-07-12 2011-07-08 Method for producing pressed articles containing coal particles

Publications (2)

Publication Number Publication Date
CN102959058A CN102959058A (en) 2013-03-06
CN102959058B true CN102959058B (en) 2014-10-29

Family

ID=44533453

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201180033650.0A Expired - Fee Related CN102959058B (en) 2010-07-12 2011-07-08 Method for producing pressed articles containing coal particles

Country Status (6)

Country Link
US (1) US20130174695A1 (en)
EP (1) EP2593536B1 (en)
KR (1) KR20130096705A (en)
CN (1) CN102959058B (en)
AT (1) AT510135B1 (en)
WO (1) WO2012007385A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106525525B (en) * 2016-10-21 2020-02-04 中联煤层气国家工程研究中心有限责任公司 Manufacturing method of artificial coal core standard test piece
CN111621314B (en) * 2020-06-11 2021-11-02 河北中煤旭阳能源有限公司 Tamping coal blending coking method
US12000011B2 (en) * 2021-06-22 2024-06-04 Midrex Technologies, Inc. System and method for the production of hot briquetted iron (HBI) containing flux and/or carbonaceous material at a direct reduction plant
CN113696297A (en) * 2021-08-20 2021-11-26 广州厚邦木业制造有限公司 Floor board preparation process using composite material as core board and floor board

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1551966A (en) * 1923-11-14 1925-09-01 Themselves Process of preparing materials for briquetting and the product thereof
US2310095A (en) * 1940-05-23 1943-02-02 Ernest T Lance Production of lignite briquettes
DE3321683A1 (en) * 1982-06-22 1983-12-22 Gelsenberg Ag, 4300 Essen Process for producing agglomerated fuels
EP0368041A1 (en) * 1988-10-29 1990-05-16 Th. Goldschmidt AG Coal briquets with diminished water absorption, and process for manufacturing same
CN1108684A (en) * 1993-12-27 1995-09-20 株式会社神户制钢所 Solid fuel made from porous coal and production process and production apparatus therefore
CN1404524A (en) * 2000-12-19 2003-03-19 Posco公司 Coal briquette having superior strength and briquetting method thereof
CN1629261A (en) * 2003-11-07 2005-06-22 株式会社神户制钢所 Apparatus and method for manufacturing solid fuel with low-rank coal
CN1328358C (en) * 2002-09-02 2007-07-25 Posco公司 Coal briquettes for smelting reduction process, and method for manufacturing the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333738A (en) * 1980-11-24 1982-06-08 John S. Mathis Synthetic fire log and method for making same
DE3432365A1 (en) * 1984-09-03 1986-03-13 Deutsche Bp Ag, 2000 Hamburg COAL-BASED FUEL
GB2181449B (en) * 1985-10-05 1989-05-04 Bobrite Limited Fuel briquettes
AT407053B (en) 1997-07-04 2000-12-27 Voest Alpine Ind Anlagen METHOD AND SYSTEM FOR THE PRODUCTION OF A METAL MELT IN A MELTING-UP CARBURETOR USING FINE COAL
AT5765U1 (en) 2001-09-14 2002-11-25 Voest Alpine Ind Anlagen METHOD FOR PREVENTING A METAL CONTAINER, PREFERABLY FOR THE PRODUCTION OF RAW IRON AND / OR LIQUID STEEL PRE-PRODUCTS
JP3920304B1 (en) * 2005-11-22 2007-05-30 株式会社神戸製鋼所 Method and apparatus for producing solid fuel using low-grade coal as raw material
JP4805802B2 (en) * 2006-12-13 2011-11-02 株式会社神戸製鋼所 Method and apparatus for producing solid fuel
AT507851B1 (en) * 2009-01-16 2017-10-15 Primetals Technologies Austria GmbH PROCESS FOR PREPARING PRESS LENDS CONTAINING COAL PARTICLES
AT510136B1 (en) * 2010-07-12 2016-11-15 Primetals Technologies Austria GmbH PROCESS FOR PREPARING PRESS LENDS CONTAINING COAL PARTICLES

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1551966A (en) * 1923-11-14 1925-09-01 Themselves Process of preparing materials for briquetting and the product thereof
US2310095A (en) * 1940-05-23 1943-02-02 Ernest T Lance Production of lignite briquettes
DE3321683A1 (en) * 1982-06-22 1983-12-22 Gelsenberg Ag, 4300 Essen Process for producing agglomerated fuels
EP0368041A1 (en) * 1988-10-29 1990-05-16 Th. Goldschmidt AG Coal briquets with diminished water absorption, and process for manufacturing same
CN1108684A (en) * 1993-12-27 1995-09-20 株式会社神户制钢所 Solid fuel made from porous coal and production process and production apparatus therefore
CN1404524A (en) * 2000-12-19 2003-03-19 Posco公司 Coal briquette having superior strength and briquetting method thereof
CN1328358C (en) * 2002-09-02 2007-07-25 Posco公司 Coal briquettes for smelting reduction process, and method for manufacturing the same
CN1629261A (en) * 2003-11-07 2005-06-22 株式会社神户制钢所 Apparatus and method for manufacturing solid fuel with low-rank coal

Also Published As

Publication number Publication date
EP2593536B1 (en) 2014-10-29
KR20130096705A (en) 2013-08-30
US20130174695A1 (en) 2013-07-11
EP2593536A1 (en) 2013-05-22
CN102959058A (en) 2013-03-06
AT510135B1 (en) 2016-11-15
WO2012007385A1 (en) 2012-01-19
AT510135A1 (en) 2012-01-15

Similar Documents

Publication Publication Date Title
CN102971403B (en) Containing the preparation method of the stampings of coal particle
CN102361963B (en) Process for producing high quality bio-oil in high yield
CN102272271B (en) Containing the manufacture method of the stampings of coal particle
CN102230046B (en) A method for manufacturing briquettes directly using coal with wide range of size
CN102959058B (en) Method for producing pressed articles containing coal particles
KR101750784B1 (en) binder for forming briquetting and briquetting using the same, manufacturing method thereof
US20150027038A1 (en) Process and apparatus for briquette production
CN102277487B (en) Adhesive for carbon-containing pellets and using method thereof
JPH08506144A (en) Slag defoaming composite material
CN105714110A (en) Coal briquettes, a method and an apparatus for manufacturing the same
CN101955784B (en) Coking composite leaning agent and preparation method thereof
CN110869475A (en) Method for producing briquette and briquette produced by the method
KR101797738B1 (en) Coal briquettes and method for manufacturing the same
CN104973880A (en) Carbonaceous pellet and preparation method thereof
CN101191088B (en) Moulded coal and preparation method thereof
CA2995464C (en) Coal briquettes and method for manufacturing same
CN101768456B (en) Production method of cast coke manufactured by anthracite powder
JPH11508926A (en) Agglomerates
KR100568337B1 (en) Method of Briquettes having superior strength for smelting reduction iron making process
CN100564552C (en) Binding agent of a kind of pellet ore and preparation method thereof
CN104099473A (en) Technological method for extraction of silicon-aluminum-iron-titanium alloy from pyrite slag
Borowski Using of adhesives and binders for waste agglomeration
KR101245322B1 (en) Device and method for manufacturing briquette by pulverized coke
KR101914085B1 (en) Method for manufacturing of coal briquettes and coal briquettes

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20151221

Address after: Linz

Patentee after: The Austrian limited liability company of primary metal science and technology

Address before: Linz

Patentee before: Siemens VAI metal technology limited liability company

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141029

Termination date: 20200708

CF01 Termination of patent right due to non-payment of annual fee