CN104428398A - Coke and method for producing same - Google Patents
Coke and method for producing same Download PDFInfo
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- CN104428398A CN104428398A CN201380035619.XA CN201380035619A CN104428398A CN 104428398 A CN104428398 A CN 104428398A CN 201380035619 A CN201380035619 A CN 201380035619A CN 104428398 A CN104428398 A CN 104428398A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
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Abstract
This coke is characterized by being obtained by mixing 2 to 8% ashless coal with coal and carbonizing the mixture thereby produced, and is further characterized in that the maximum fluidity (MF) value (log (ddpm)) of the mixture of coal and ashless coal is 1.8 to 3.0. By keeping the additive rate of the ashless coal at 8% or less while compensating for the caking property using the ashless coal, and ensuring the overall fluidity using the coal, volume destruction and inhibition of the growth of crystals due to the ashless coal is prevented, thereby allowing coke with large particles to be produced.
Description
Technical field
The present invention relates to the coke for blast furnace legal system iron and manufacture method thereof, particularly coordinated and with solvent, extraction treatment has been carried out to coal and the coke of the ashless coal obtained.
Background technology
For the coke of smelting iron for blast furnace process, requiring to be not easy in blast furnace to crush such physical strength to a certain degree, reactivity, apparent density, also having the various characteristic such as size, distribution of the block for guaranteeing air permeability.For the raw material of coke meeting these characteristics, usually can use and be called as " coking coal ", the quality that cohesiveness, mobility or degree of coalification are in certain scope is high, in addition than the coal of common boiler by common coal high price, i.e. and strong caking coal.Strong caking coal like this softens melting at about 400 DEG C and forms the liquid of thickness and melt sticky, and in addition, expand due to interior bag gas, therefore the interparticle gap of coal is by landfill effectively, to be interparticlely bondingly promoted, and generates powerful coke.But in recent years, with rising sharply for background of the urgent of stock number and price, attempt the raw material more cheap and that quality is low coal being used for coke, such as, implement various in order to the technological development coordinating grizzle a large amount of in strong caking coal.
Low and the bad adhesion of the such grizzle degree of mobilization compared with strong caking coal of non-micro-caking coal, therefore hinder coal interparticle bonding, defect concentration uprises and reduces the intensity of coke.Therefore, in order to fill up cohesiveness, disclose with the addition of as the bonding material coming from oil asphaltic pitches (ASP) or comprise the technology of coke of ashless coal (Hyper-coal, HPC) of the soluble ingredient after coal being extracted with organic solvent.Particularly ashless coal is as effective utilization of grizzle, has been developed various technology.For example, Patent Document 1 discloses with the addition of the technology of the coke of ashless coal in the coal comprising grizzle, the coke of special high strength when adding ashless coal 5 ~ 10%, can be obtained.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2009-221361 publication
Summary of the invention
Invent problem to be solved
Ashless coal degree of mobilization compared with coking coal (coal of non-upgrading) is higher, therefore for coke, by adding more ashless coal, and the structure coordinating grizzle also can become high strength even if a large amount of.But, for the coke not only desired strength of blast furnace, also require particle large and evenly.But, if add a large amount of ashless coal in coke, then the tendency that the coke mixing having particle little exists and generates.Thus, above-mentioned patent documentation 1 still has the leeway of improvement.
In addition, for coke, due to the structural problem of coke-fired furnace, it has been generally acknowledged that quality (intensity, particle diameter, void content etc.) can produce deviation.Because coke-fired furnace is that thus the temperature of central part is low, and the heat-up time of the actual effect in retort process shortens from the heat transfer of side, furnace wall.In addition, coke-fired furnace produces pressure distribution in short transverse, therefore applies large load in the bottom of coke-fired furnace and coking coal etc. (loading coal) are difficult to expand, in top free expansion.Consequently, according to the position of the inside of coke-fired furnace, the quality of the coke of generation produces deviation.
The present invention has put in view of the above problems, and problem is to provide the cooperation and large grain that control strong caking coal and has coke and the manufacture method thereof of the greater homogeneity of sufficient intensity.
For solving the means of problem
In order to solve above-mentioned problem, the present inventor finds coke, and due to volumetric fracture of rock, particle diminishes, checking volumetric fracture of rock genesis mechanism as a result, expect due to a large amount of interpolation of ashless coal and volumetric fracture of rock occur.Therefore, the present inventor makes the addition optimization of ashless coal, utilizes coal to guarantee degree of mobilization on the whole.
Namely the feature of coke of the present invention is, the ashless coal of 2 ~ 8% and the mixed coal mixtures of coal form by destructive distillation, described ashless coal is made up of the composition dissolving in solvent of coal, and the most high fluidity MF value (log (ddpm)) of described coal mixtures is 1.8 ~ 3.0.
Like this, by adding the ashless coal that degree of mobilization is higher compared with coal (coking coal), coke forms necessary cohesiveness is improved coke intensity by filling up, in addition in retort process, ashless coal in the temperature current downflow lower than coal in coke-fired furnace equably in conjunction with coal particle each other, the interparticle space of coal is filled further by high-expansion, therefore the greater homogeneity of coke is made, further by making the addition of ashless coal and the coal mixtures average most high fluidity on the whole as loading coal be suitable scope, the particle diameter of coke can be increased.
In addition, the method manufacturing coke of the present invention carries out following operation: by the ashless coal of 2 ~ 8% and coal mixing, make the mixed processes that most high fluidity MF value (log (ddpm)) is the coal mixtures of 1.8 ~ 3.0; Described coal mixtures is carried out to the destructive distillation operation of destructive distillation.
By being undertaken by such order, the manufacture method of coke is by mixed processes, mean value based on the most high fluidity that can calculate in advance selects coking coal, coordinate together with ashless coal and mix, in destructive distillation operation, carry out destructive distillation, the coke with sufficient intensity, evenly large grain can be manufactured thus.
Invention effect
According to coke of the present invention, can raw materials cost be controlled and become sufficient intensity and particle diameter.In addition, according to the manufacture method of coke of the present invention, can ashless coal be manufactured from such as grizzle and reduce raw materials cost, and easy manufacture method can be utilized, independently evenly manufacture the coke of sufficient intensity and particle diameter with the position of the inside of coke-fired furnace.
Embodiment
Coke of the present invention and manufacture method thereof are described in detail.
(coke)
Coke of the present invention is in order to manufacture the pig iron for dropping into the coke in blast furnace, the coal mixtures being mixed with ashless coal is carried out destructive distillation under typical conditions by aftermentioned mode and obtain in coal.Below, the coal of the raw material as coke and ashless coal are described.
(coal)
As described later, coal is suitable for one kind or two or more, according to the coal with the most quality of high fluidity MF value in specialized range of the average meter of ashless coal.Particularly when be suitable for only himself be difficult to become coke raw material, be classified as weakly caking coal or non-micro-caking coal such grizzle, and be used as the normally used strong caking coal of coke raw material, accurate strong caking coal.It should be noted that, grizzle refers to that as a rule most high fluidity MF value (log (ddpm)) is less than 2.0, average maximum reflectivity Ro value is the coal of less than 1.1.Most high fluidity MF value represents thermal fluidity, average maximum reflectivity Ro value expression degree of coalification.In coke of the present invention, also relevant with the characteristic of various coal, but for weakly caking coal, non-micro-caking coal, also to comprise the proportioning of ashless coal, can about 50% be coordinated so that the form of moisture-free coal is maximum.Coal can become moisture-free coal by air-dry grade, but also can mix with ashless coal under the state comprising moisture, and carries out destructive distillation.
Preferred coal becomes granular by what fine pulverize, and more than 80% of this coal preferred is the granular of below diameter 3mm specifically.In this specification sheets, the diameter of particle refers to the maximum length of particle, and more than 80% is that the particle of below diameter 3mm refers to, when making coal be the sieve of 3mm by size of mesh, more than 80% passes through mesh.It should be noted that, such as particle diameter is that the coal of below 3mm refers to, powder, particle under the sieve when comminuted coal after pulverizing being sieved with the sieve (metal mesh screen, gauge number JIS Z 8801-1 (2006)) of below mesh 3mm.Such coal is described in detail in a manufacturing method, can pulverize in advance, or can pulverize with ashless coal mixing limit on limit.
(ashless coal: 2 ~ 8%)
Ashless coal is the one of the upgrading coal in order to coal to be carried out upgrading as utilization of resources, develops to utilize as fuel-efficient.Ashless coal is the upgrading coal as far as possible eliminating ash content and non-solubility coal composition from coal, by with the solvent extraction coal high with this coal affinity, thus to grade insoluble component separating and be extracted liquid from ash, manufactured except desolventizing from this extraction liquid by distillation method, method of evaporation.Such ashless coal can adopt known method to carry out manufacturing (for example, referring to Japanese Patent No. 4045229 publication).Therefore, ashless coal in fact not containing ash content, in a large number containing the organism with softening meltbility dissolving in solvent, in structure condensed aromatic ring from the composition of the lower molecular weight of 2,3 rings to 5,6 rings about high molecular weight components there is broad molecular weight distribution.In addition, ashless coal extraction, be separated before coal and solvent mixture (slurry) state under dehydrated, therefore moisture reduces to about 0.2 ~ 3 quality %, has sufficient thermal discharge.Therefore, ashless coal demonstrates high workability under heating, has nothing to do, usually 200 ~ 300 DEG C of meltings (having softening meltbility) with the grade of the coal becoming its raw material.In the present invention, for the coal of raw material becoming ashless coal, quality is requirement not.In addition, in order to improve the intensity of coke, ashless coal is preferably as far as possible little granular, and preferably diameter (maximum length) is below 1mm specifically.
According to like this, because ashless coal contains a large amount of volatile component, thermal fluidity is excellent, and cohesiveness is high, therefore, it is possible to fill up the cohesiveness of the grizzle such as weakly caking coal, noncaking coal.And at the temperature lower than coking coal, start flowing due to ashless coal, therefore by adding in coal and make it disperse, in retort process in coke-fired furnace, be included in temperature and rise slow central part, make coal particle directly combine each other equably.In addition, the swelling property of ashless coal is also high than coking coal, even if therefore in the bottom of coke-fired furnace of executing great load, the particle of ashless coal also expands, and fills the interparticle space of coal, produces turgor pressure simultaneously and makes to combine between other coal particle.Consequently, can become the starting point of the destruction of coke, the generation of the defect such as the interparticle poor attachment of coal (macroscopic view be full of cracks), superfluous bulge (thick pore) alleviated, and can suppress the stove width of coke-fired furnace, the deviation of quality that short transverse causes.The adding rate (proportioning) of ashless coal with the mixture (coal mixtures, loading coal) of coal in lower than 2% time, required cohesiveness and above-mentioned effect when can not obtain fully coordinating grizzle.Therefore, the adding rate of ashless coal is more than 2%, is preferably more than 3%.
On the other hand, ashless coal in most cases manufactures by carrying out upgrading to the grizzle of cheapness, therefore can think the strong caking coal that the coke (carbon) that generated by the low coking coal of such degree of coalification is high with coming from degree of coalification etc. carbon compared with, the expansion of crystallization is little (expansion, the thickness of carbon net surface structure are little).In addition, along with ashless coal becomes many, the continuous phase transistion of the ashless coal in coke is large, if become excessive, external phase self becomes the starting point of destruction.It should be noted that, except such volumetric fracture of rock, to also have surface breakdown in the destruction of coke, as in the barrate strength (DI) that the intensity index of coke mainly uses, volumetric fracture of rock is difficult to performance.If add a large amount of ashless coal, then the particle diameter of coke is difficult to become large, and intensity reduces on the contrary in addition, if exceed adding rate 8%, then this tendency becomes remarkable.Therefore, the adding rate of ashless coal is less than 8%, is preferably less than 6%.According to like this, the adding rate of the ashless coal of coke of the present invention be controlled in certain below, the cohesiveness utilizing coking coal (coal) original is to a certain extent to guarantee intensity.
(most high fluidity MF value (log (ddpm)): 1.8 ~ 3.0)
When the most high fluidity MF value of the mixture (coal mixtures) of coal and ashless coal is less than 1.8, degree of mobilization is not enough, the intensity step-down of the coke obtained.Specifically, when most high fluidity MF value is less than 1.8, the cooperation of the grizzle that mobility, swelling property are low is many, and the particle of such coal is difficult to be combined with other coal particle in retort process.Therefore, the most high fluidity MF value of the mixture of coal and ashless coal is more than 1.8, is preferably more than 2.0.In addition, if most high fluidity MF value is more than 1.8, then swelling property is also easily guaranteed, bag gas and expanding in coal particle in retort process, and therefore the interparticle gap of coal is by landfill effectively, and then to be interparticlely bondingly promoted, and generates strong coke.On the other hand, if most high fluidity MF value is more than 3.0, then degree of mobilization becomes superfluous and likely in coke, produces bubble.Therefore, the most high fluidity MF value of the mixture of coal and ashless coal is less than 3.0, is preferably less than 2.6.The maximum fluidity MF value of the mixture of coal and ashless coal is the value to mixture determining, fluidity test method (GieslerPlastometer) can be utilized to measure based on JIS M8801.But the situation that the respective maximum fluidity MF value of various coal and ashless coal is known is inferior, can adds up to by being multiplied by proportioning (quality %/(100%)), thus calculate approx.
In addition, if the average maximum reflectivity Ro value of the mixture of coal and ashless coal is little, then degree of coalification is low, therefore in retort process the particle of coal, ashless coal expansion, melt and sticky become insufficient, or be thus difficult to because the intensity of coke matrix is low the coke obtaining high strength.The average maximum reflectivity Ro value of the mixture of preferred coal and ashless coal is more than 0.95, is more preferably more than 1.0.On the other hand, even if average maximum reflectivity Ro value is large, therefore the quality of coke also can not only reduce, maximum reflectivity Ro value due to the such senior carbon of strong caking coal increase and become large, the swelling property of strong caking coal is also high, therefore if coordinate such coking coal superfluously, then not only raw materials cost uprises, and also likely turgor pressure becomes superfluous and the loss of coke-fired furnace becomes serious.Specifically, the average maximum reflectivity Ro value of the mixture of coal and ashless coal is preferably less than 1.3, is more preferably less than 1.2.
(manufacture method of coke)
The manufacture method of coke of the present invention carries out mixing the destructive distillation operation of coal etc. described in the mixed processes of ashless coal and destructive distillation in coal.Below, each operation is described.
(mixed processes)
Mixed processes is that coal and ashless coal are obtained by mixing coal mixtures.The most high fluidity MF value of use level and coal mixtures is described above.In addition, now preferred they to be pulverized simultaneously.Comminuted poorer than ashless coal of coal, therefore as mentioned above, if be ground into the granular of below diameter 3mm by more than 80%, then ashless coal is ground into the granular of below diameter 1mm simultaneously.Such as drop into coal and ashless coal from hopper respectively to known stirrer, stir while pulverize limit by common method, the offspring of ashless coal is easily pulverized thus, and coal is also ground into granular.It should be noted that, order and the method for mixing do not have special stipulation, such as, can mix the ashless coal pulverized in advance and coal.
(destructive distillation operation)
In the present invention, the condition of destructive distillation is not particularly limited, and the common destructive distillation condition during the coke using coke-fired furnace can be adopted to manufacture, such as, load above-mentioned coal mixtures and carry out destructive distillation in the room stove of 1 loading about 30 tons.Now, undertaken by the tamped density fully improving coal mixtures loading the coke that can obtain high strength, preferred tamped density is 730kg/m
3above.The coal mixtures that particularly mixture degree of mobilization is on the whole low can compensate the undercapacity that low degree of mobilization causes to a certain extent by improving tamped density, specifically, most high fluidity MF value is less than the preferred tamped density of coal mixtures of 2.0 is 750kg/m
3above.The temperature of destructive distillation condition optimization more than 950 DEG C, more preferably more than 1000 DEG C, preferably less than 1200 DEG C, more preferably less than 1050 DEG C, preferably more than 8 hours, more preferably more than 10 hours, preferably less than 24 hours, more preferably less than 20 hours.
[embodiment]
Then, embodiment is enumerated to coke of the present invention and manufacture method thereof, comparative example illustrates.
(making of coke)
(manufacture of ashless coal)
First, utilize Hyper-coal continuous manufacturing apparatus (Bench Scale Unit), manufacture ashless coal by following method.
Produce bituminous coal for coking coal with Australia, the 1 monomethyl naphthalene (chemistry society of Nippon Steel system) of this coking coal 5kg (being converted into moisture-free coal) and 4 times amount (20kg) as solvent is mixed, has prepared slurry.For this slurry, import nitrogen and be pressurized to 1.2MPa, in the batch autoclave of internal volume 30L, carrying out the extraction treatment of 370 DEG C, 1 hour.By this slurry keep same temperature, pressure gravity settling tank in be separated into supernatant liquor and solids component concentrated solution, with distillation method be separated from supernatant liquor, recycling design, obtain the ashless coal of 2.7kg.The ashless pit ash obtained is 0.9 quality %, most high fluidity MF value (1og (ddpm)) and average maximum reflectivity Ro value as shown in table 1.For this ashless coal, the mode becoming particle diameter (maximum length) below 3mm according to its 100% (owning) is pulverized.
(mixed processes)
The various coals of characteristic shown in above-mentioned ashless coal and table 1 being adjusted to moisture 7.5 quality % respectively, mixing by coordinating table 2 Suo Shi with moisture-free coal benchmark.It should be noted that, the most high fluidity MF value (log (ddpm)) of coal shown in table 1 and ashless coal utilizes fluidity test method to measure based on JIS M8801.Average maximum reflectivity Ro value measures based on JIS M8816.In addition, for mixture, calculate most high fluidity MF value and average maximum reflectivity Ro value by various coal and ashless coal proportioning separately, be shown in Table 2.In addition, the chippy coal of mode becoming below particle diameter 3mm according to coal 100% is mixed with.
(destructive distillation operation)
The arrangement of above-mentioned mixture (loading coal) is put into the retort bottle of steel, vibration applied to this retort bottle and after adjusting to tamped density shown in table 2, puts into sandwich heating formula electric furnace, in nitrogen gas stream, carry out destructive distillation and made sample.Destructive distillation condition is with 3 DEG C/min of intensifications, with 1000 DEG C of heating 20 minutes, then, takes out retort bottle naturally cooling from electric furnace.In addition, as metewand, mismatch noncaking coal, do not add ashless coal, the coal high by most high fluidity MF value has made sample (No.20).
(evaluation)
(intensity)
As the intensity of coke, by barrate strength index D I
150 15be shown in Table 2.Specifically, according to JISK2151, after sample being carried out rotary drum 150 turns, screen with the sieve of mesh 15mm, calculate remaining weight ratio.The qualified benchmark of intensity is DI
150 15: more than 84.8%.It should be noted that, use and measure the Specimen Determination coke strenth after size-grade distribution by method described later.
(median size)
For coke, fall 2 times with retaining device, apply the impact of 30 turns with drum test device.For the coke being applied with this impact, use mesh to be 100,75,50,38,25, the square sieve of 15mm measures size-grade distribution, calculates median size with following formula (1).It should be noted that, arbitrary sample is all less than at mesh being coke on the square sieve of 100mm.The median size calculated is shown in Table 2.Qualified benchmark is more than median size 45.0mm.
Median size (mm)=(87.5 × M
75-100+ 62.5 × M
50-75+ 44.0 × M
38-50+ 31.5 × M
25-38+ 20.0 × M
15-25+ 7.5 × M
15 <)/M
aLL(1)
M
75-100: the weight of coke on 75mm sieve
M
50-75: from 75mm sieve to the weight of coke on 50mm sieve
M
38-50: from 50mm sieve to the weight of coke on 38mm sieve
M
25-38: from 38mm sieve to the weight of coke on 25mm sieve
M
15-25: from 25mm sieve to the weight of coke on 15mm sieve
M
15 <: the weight of coke under 15mm sieve
M
aLL: the summation (=M of the weight of coke after sieve
75-100+ M
50-75+ M
38-50+ M
25-38+ M
15-25-+-M
15 <)
[table 1]
[table 2]
As shown in table 2, do not add ashless coal and coordinated noncaking coal sample No.1,2,16, the undercapacity of 17, the coke that particle is little is in addition many, and median size is insufficient.The sample No.3,4 of the adding rate deficiency of ashless coal similarly intensity and median size insufficient.
On the other hand, although to be sample No.5 ~ 13,18,19 degree of mobilization compared with sample No.20 of scope of the present invention low for the adding rate of ashless coal and the most high fluidity MF value of mixture, the coke of sufficient intensity and particle diameter is become.Particularly the adding rate of ashless coal be 4 ~ 6% sample No.8 ~ 11,19 become the coke with the Large stone of sample No.20 equal extent.In addition, sample No.16 ~ 19 have especially more coordinated the noncaking coal that degree of mobilization is low, therefore the degree of mobilization of mixture is also low, but adds ashless coal, further improves the tamped density of mixture and the sample No.18,19 after destructive distillation becomes the coke of sufficient intensity and particle diameter.On the other hand, for the sample No.14,15 of the adding rate surplus of ashless coal, even if the degree of mobilization of mixture and sample No.5 ~ 13 equal extent or higher, the size of intensity and particle diameter is also insufficient.
Above, illustrate that embodiment and embodiment have been described in detail for the present invention, purport of the present invention is not limited to foregoing, and its interest field broadly must be explained based on the record in technical scheme.In addition, content of the present invention certainly extensively can change based on above-mentioned record, change etc.
Claims (2)
1. a coke, is characterized in that, be destructive distillation by the coke of the ashless coal of 2 ~ 8% and the mixed coal mixtures of coal, described ashless coal is made up of the composition dissolving in solvent of coal,
The most high fluidity MF value of described coal mixtures and log (ddpm) are 1.8 ~ 3.0.
2. a coke manufacture method, is characterized in that, carries out following operation:
Mixed processes: by the ashless coal of 2 ~ 8% and coal mixing, makes most high fluidity MF value and log (ddpm) is the coal mixtures of 1.8 ~ 3.0, and
Destructive distillation operation: destructive distillation is carried out to described coal mixtures.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-152145 | 2012-07-06 | ||
| JP2012152145A JP2014015502A (en) | 2012-07-06 | 2012-07-06 | Coke and method of producing the same |
| PCT/JP2013/067936 WO2014007184A1 (en) | 2012-07-06 | 2013-06-28 | Coke and method for producing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104428398A true CN104428398A (en) | 2015-03-18 |
Family
ID=49881940
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| Application Number | Title | Priority Date | Filing Date |
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| CN201380035619.XA Pending CN104428398A (en) | 2012-07-06 | 2013-06-28 | Coke and method for producing same |
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| Country | Link |
|---|---|
| EP (1) | EP2871226A4 (en) |
| JP (1) | JP2014015502A (en) |
| KR (1) | KR20150021543A (en) |
| CN (1) | CN104428398A (en) |
| TW (1) | TWI504738B (en) |
| WO (1) | WO2014007184A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109957415A (en) * | 2019-03-29 | 2019-07-02 | 河北科技大学 | A method of improving low order dross coal caking property |
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| JP6266409B2 (en) * | 2014-03-31 | 2018-01-24 | 株式会社神戸製鋼所 | Coal mixture |
| JP6227482B2 (en) * | 2014-05-28 | 2017-11-08 | 株式会社神戸製鋼所 | Method for producing blast furnace coke and blast furnace coke |
| JP6189811B2 (en) * | 2014-10-07 | 2017-08-30 | 株式会社神戸製鋼所 | Ashless coal blending amount determination method and blast furnace coke manufacturing method |
| CN115353902B (en) * | 2022-08-19 | 2024-03-19 | 中冶焦耐(大连)工程技术有限公司 | Additive for enhancing thermal state performance of coke and application method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008174592A (en) * | 2007-01-16 | 2008-07-31 | Kobe Steel Ltd | Method for producing coke and method for producing pig iron |
| CN101511977A (en) * | 2006-10-12 | 2009-08-19 | 株式会社神户制钢所 | Method for production of ashless coal |
| CN101531907A (en) * | 2008-03-10 | 2009-09-16 | 株式会社神户制钢所 | Method for manufacturing coke |
| CN101531940A (en) * | 2008-03-11 | 2009-09-16 | 株式会社神户制钢所 | Method for manufacturing raw material coal for manufacturing coke, method for manufacturing coke and pig iron |
| JP2009221361A (en) * | 2008-03-17 | 2009-10-01 | Kobe Steel Ltd | Method for producing coke, and method for producing pig iron |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4045229B2 (en) | 2003-10-15 | 2008-02-13 | 株式会社神戸製鋼所 | Production method of ashless coal |
| JP4950527B2 (en) * | 2006-03-15 | 2012-06-13 | 株式会社神戸製鋼所 | Coke manufacturing method and pig iron manufacturing method |
-
2012
- 2012-07-06 JP JP2012152145A patent/JP2014015502A/en active Pending
-
2013
- 2013-06-28 CN CN201380035619.XA patent/CN104428398A/en active Pending
- 2013-06-28 KR KR20147036467A patent/KR20150021543A/en not_active Application Discontinuation
- 2013-06-28 WO PCT/JP2013/067936 patent/WO2014007184A1/en active Application Filing
- 2013-06-28 EP EP13813557.9A patent/EP2871226A4/en not_active Withdrawn
- 2013-07-05 TW TW102124182A patent/TWI504738B/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101511977A (en) * | 2006-10-12 | 2009-08-19 | 株式会社神户制钢所 | Method for production of ashless coal |
| JP2008174592A (en) * | 2007-01-16 | 2008-07-31 | Kobe Steel Ltd | Method for producing coke and method for producing pig iron |
| CN101531907A (en) * | 2008-03-10 | 2009-09-16 | 株式会社神户制钢所 | Method for manufacturing coke |
| CN101531940A (en) * | 2008-03-11 | 2009-09-16 | 株式会社神户制钢所 | Method for manufacturing raw material coal for manufacturing coke, method for manufacturing coke and pig iron |
| JP2009221361A (en) * | 2008-03-17 | 2009-10-01 | Kobe Steel Ltd | Method for producing coke, and method for producing pig iron |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109957415A (en) * | 2019-03-29 | 2019-07-02 | 河北科技大学 | A method of improving low order dross coal caking property |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2871226A4 (en) | 2016-02-24 |
| TWI504738B (en) | 2015-10-21 |
| WO2014007184A1 (en) | 2014-01-09 |
| EP2871226A1 (en) | 2015-05-13 |
| JP2014015502A (en) | 2014-01-30 |
| KR20150021543A (en) | 2015-03-02 |
| TW201418445A (en) | 2014-05-16 |
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