CN101280203A - Anthracite carbon casting formed coke - Google Patents
Anthracite carbon casting formed coke Download PDFInfo
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- CN101280203A CN101280203A CNA2008100549992A CN200810054999A CN101280203A CN 101280203 A CN101280203 A CN 101280203A CN A2008100549992 A CNA2008100549992 A CN A2008100549992A CN 200810054999 A CN200810054999 A CN 200810054999A CN 101280203 A CN101280203 A CN 101280203A
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- formed coke
- coke
- anthracite
- coal
- anthracite carbon
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- 239000000571 coke Substances 0.000 title claims abstract description 65
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000003830 anthracite Substances 0.000 title claims abstract description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 32
- 238000005266 casting Methods 0.000 title claims abstract description 25
- 239000003245 coal Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000011230 binding agent Substances 0.000 claims abstract description 14
- 238000003763 carbonization Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 12
- 238000000197 pyrolysis Methods 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 3
- 239000000428 dust Substances 0.000 claims abstract description 3
- 239000004571 lime Substances 0.000 claims abstract description 3
- 238000003825 pressing Methods 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 32
- 229910052742 iron Inorganic materials 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 claims description 4
- 239000010459 dolomite Substances 0.000 claims description 4
- 229910000514 dolomite Inorganic materials 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000003500 flue dust Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 230000003009 desulfurizing effect Effects 0.000 claims description 2
- 235000018927 edible plant Nutrition 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims description 2
- 239000010773 plant oil Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- -1 alcohol ether class Chemical class 0.000 claims 1
- 230000008521 reorganization Effects 0.000 claims 1
- 238000004939 coking Methods 0.000 abstract description 23
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 230000009257 reactivity Effects 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003546 flue gas Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000006477 desulfuration reaction Methods 0.000 abstract 1
- 230000023556 desulfurization Effects 0.000 abstract 1
- 238000002955 isolation Methods 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000007670 refining Methods 0.000 description 5
- 239000005864 Sulphur Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 238000006213 oxygenation reaction Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000006101 laboratory sample Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Coke Industry (AREA)
Abstract
Disclosed is anthracite carbon foundry formed coke which solves the disadvantages of uneven granularity, insufficient oxygen-adding, high broken rate and environment pollution found in the formed coke in the prior art; the anthracite carbon foundry formed coke is characterized in that the anthracite or non-coking coal is used to produce the anthracite carbon foundry formed coke; the steps include that the raw coal is conveyed to the factory, crushed and grinded to powder; the binder is added to the grinded powder and the mixture is stirred under the cooling condition, and then stirred evenly after being heated; the mixture is conveyed to the pressing machine for the extruding formation; the formed material is conveyed to the carbonization chamber and then is processed with dry distillation and carbonization under the conditions of air-isolation and the temperature ranging from 950 DEG C-1050 DEG C; finally, the formed material is cooled and the finished product is outputted to be stored in the storehouse for sale; the process of comprehensive utilization of the coke-oven gas generated in the carbonization chamber is set for the lime joint production; the process of dust removal and desulfurization is set for the flue gas and SO2 in the exhausted gas; based on the special binder formula and the special product structure and compared with the traditional coking method, the anthracite carbon foundry formed coke has the advantages of high carbon content, high calorific value, low ash content and sulfur content, crush resistance, abrasion resistance, good intensity, moderate reactivity, high intensity after reaction, good cold and heat intensity, reasonable and simple structure, small investment, low expense and specially being applicable to the coking and the mechanical casting industries.
Description
Technical field:
The present invention is specifically related to a kind of anthracite carbon casting formed coke, belongs to the technical field that coal resources deep processing and utilization and product are made, and is adapted to utilize hard coal refining anthracite carbon casting formed coke.
Background technology:
Known to the contriver, it all is to be raw material with the coking coal that present coking industry is produced coke, yet worldwide the reserves of coking coal all seldom, particularly our reserves of national coking coal still less, only account for existing coal proven reserve 1/4th less than, can not satisfy China's needs of economic development far away.The reserves of coking coal also can not support the sustainable development of coking industry, thereby it is extremely urgent to develop new coking technology, last century, the eighties country just encouraged exploitation mill coal coking technology, it is still unsuccessful to explore the mill coal coking technology through the research of many decades, and particularly the anthracite cocking technology does not break through so far yet.The requirement of the incompatible casting of coke of traditional coking coal refining, exist granularity inhomogeneous, oxygenation is inadequate, it is low that easy fragmentation goes out the piece rate, melting coke ratio rate height, the burnt void content of tradition is big, the contact area of iron liquid and coke is big, iron liquid is slow by the coke layer leaching rate, and adsorption activity power is strong because the burnt hole of traditional coking is big, and specific surface area is big again, make iron liquid be subjected to the influence of the harmful elements such as sulphur, phosphorus in the coke just bigger, hazardous emissions such as the flue dust in the coking coal coking flue gas, sulfurous gas are more, and environmental pollution is serious, and coking cost height.The gordian technique that mill coal is produced formed coke is a tackiness agent, and traditional formed coke production deadly defect is that tackiness agent does not pass a test.The first is if use inorganic adhesive just to increase the ash content of formed coke; It is two excessive because of the melting temperature difference between tackiness agent and the feed coal when being to use organic binder bond, the formed coke excessive reactivity that makes, and post-reaction strength reduces, and airflow is obstructed, and combustionvelocity slows down, the iron liquid defective such as not fast that heats up.
Summary of the invention;
Purpose of the present invention is exactly for remedying above deficiency, a kind of anthracite carbon casting formed coke that utilizes the hard coal refining that provides, epigranular, oxygenation abundance, not brokenly go out piece rate height, melting coke ratio rate is low, and the formed coke apparent porosity is little, and the contact area of iron liquid horse coke is little big, iron liquid is fast by the coke layer leaching rate, iron liquid is not subjected to that harmful element such as sulphur, phosphorus influences in the coke, and environmental pollution is very little, and the low anthracite carbon casting formed coke of coking cost.
The present invention realizes like this, described anthracite carbon casting formed coke method for refining, the technological line of taking is: to the research that experimentizes of the configuration of the gordian technique binding agent of formed coke production and production technique, the method of research is: mill coal, particularly anthracitic thing, change characteristic are carried out detailed analysis, composition with this and coking coal compares, and finds out between them the difference on forming and these difference to the moulding of coke button and the influence in refining and the use.On this basis mill coal, particularly hard coal are carried out simulated experiment, then laboratory sample is made the materialization index and detect.Through conversion prescription configuration many times, do circulation experiment, find out the best joint of each component of binder formula, form the optimum formula that various mill coals and hard coal are made formed coke at last.In the research and development of production technique according to the ultimate principle of coking; the carbonization chamber and the corollary apparatus of exploitation mass-producing, continuous and automatic operation; the order that it is characterized in that production technique is to enter factory from raw coal, through broken, abrasive dust; it is even to add binding agent, cold stirring, heated and stirred; deliver to extrusion molding on the pressing machine, send the secluding air destructive distillation carbonization under 950 ℃ of-1050 ℃ of high temperature of carbonization chamber after the moulding, cool at last; finished product output is put in storage for sale.
Set up the coke-oven gas that the carbonization chamber is produced and be used for the combination producing of burning till with lime, to give comprehensive utilization and flue dust in the waste gas and SO
2The dust-removal and desulfurizing operation, realized the environment protection qualified discharge, make whole end production process embody the principle of cleaner production, economic benefit is obvious especially.
The heavy constituent of anthracite carbon casting formed coke binder formula are by alkyd ethers 10.0-24%, composite plant fiber 10.0-30.0%, ground dolomite 0.5-1.0%, the ground dolomite fineness is 120 orders, sodium hydroxide 0.8-2.8%, bitter edible plant oil 1.0-2.0%, washing oil 3.0-5.0%, anthracene 5.0-15.0%, resin 30.0-40.0%, polynaphthene hydro carbons 10.0-20.0% forms.Broken through anthracite carbon casting formed coke adhesive techniques barrier.
The burnt body lumpiness of anthracite carbon casting formed coke is big and even, is set to right cylinder substantially, and can adjusts change arbitrarily with customer requirements.Particularly the formed coke center has burner port, and the airflow space is big, and pneumatic unimpeded resistance is little, can improve the formed coke combustionvelocity, and unit time generation heat is many, and molten iron is fast, and unit iron liquid lacks than traditional burnt consumption with burnt amount.
The advantage of anthracite carbon casting formed coke of the present invention at first is to have broken through the adhesive techniques barrier, found the recipe ingredient that is complementary with anthracitic performance, develop anthracite cocking binding agent with top standard, it overcomes the key technical problem that current domestic binder formula exists, more ideally realized anthracite cocking, its quality product is superior.Anthracite carbon casting formed coke has the carbon content height, and thermal value is big, and ash content and sulphur content are low, and anti-crushing in the use, anti-wear-resisting, intensity is good, and reactive moderate, the post-reaction strength height all is better than the conventional cast formed coke on hot and cold intensity.
Anthracite carbon casting formed coke performance index detected result is as shown in the table
Anthracite carbon casting formed coke performance index detected result table
| Project | M40 | M25 | M10 | Coke reactivity CRI% | Post-reaction strength % |
| Index | 92％ | 94％ | ≤6％ | 22％ | 70％ |
The plain formed coke utilization ratio of smokeless coal height, lumpiness is big and even, and can adjust change arbitrarily with customer requirements.Particularly the formed coke center has burner port, and the airflow space is big, and pneumatic unimpeded resistance is little, can improve the formed coke combustionvelocity, and unit time generation heat is many, and molten iron is fast, and unit iron liquid lacks than traditional burnt consumption with burnt amount.Anthracite carbon formed coke piece apparent porosity is low, and iron liquid is littler than conventional cast Jiao with the contact area of formed coke, and iron liquid is fast by burnt interval velocity.It is little and stable that particularly the quality of iron liquid is subjected to the influence of formed coke, helps the cast member production of high-accuracy processing, can guarantee the stay-in-grade advantage of cast member.
Description of drawings:
Accompanying drawing 1 is anthracite carbon casting formed coke technological process of production figure
Accompanying drawing 2 is an anthracite carbon casting formed coke product structure schema
Among the figure: 1. raw coal is stacked field, 2. coaling hopper, 3. crusher, 4. pulverizing mill, 5. stirrer, 6. forming press, 7. carbonization destructive distillation chamber, 8 cooling rooms, 9. stockyard, 10. UTILIZATION OF VESIDUAL HEAT IN, 11. dust-removers, 12. chimneys, 13. producer gas generator, 14. producer gas generators are deposited dump and are put the field, 15. binding agent configuration workshop
Embodiment:
The 1-raw coal is stacked the place; The 2-hopper of coalingging is delivered coal in crusher; The 3-crusher is pulverized former coal cinder; The 4-pulverizing mill is worn into fine powder below 1 millimeter with coal dust; The hot and cold stirrer of 5-is spared mixed the stirring with former coal dust and binding agent adding; The heating of heat agitated is heated by the waste heat of high-temp waste gas; The 6-forming press is sent the coal that stirs into extrusion molding in the mould; Packing the formed coke base into and raise 1050 ℃ by producer gas generator gas delivery ignition temperature in the chamber in 7-carbonization destructive distillation chamber, under the state of secluding air the volatile matter in the formed coke base is evaporated to 1.5% left and right sides Shi Ke and comes out of the stove; The 8-cooling room is sent red-hot formed coke into open high-pressure water nozzle red-hot formed coke is cooled to normal temperature; The 9-stockyard extinguishes cooled formed coke to be put storehouse and waits to sell; The 10-UTILIZATION OF VESIDUAL HEAT IN is pumped the carbonization chamber coal gas that comes and is drunk with life and cook a meal, and makes S0 in the coal gas but major part is used for calcined limestone
2With the CaO reaction, with S0
2Remove; The 11-dust-remover; 12-chimney high altitude discharge waste gas; The mixed gas that the 13-producer gas generator produces heats up with the igniting and the adjusting of what carbonization chamber; 14-producer gas generator coal storage space; 15-binding agent configuration workshop, the link between each workshop section all is to operate by belt conveyor.
The anthracite carbon casting formed coke structure has three kinds of specifications, in fact can be arbitrarily with the user view conversion, but, need other shape to change as the user for the surface-area that reduces lumpiness is designed to Cylinder, formed coke cylinder center is provided with burner port.
The anthracite carbon formed coke has been finished the laboratory advanced development previously.Also carried out little trial production last year in the past, and quality product satisfies the technical indicator of casting formed coke fully, detects every technical indicator through relevant department and satisfy the standard shown in the following table
Casting formed coke technological standard table
| ( |
|||
| Void content (Ps, %) | ≤40 | ≤40 | ≤40 |
| Broken burnt rate (40mm, %) | 2 | 2 | 2 |
Anthracite carbon casting formed coke is exactly an invention technology of producing the anthracite carbon formed coke with hard coal or mill coal, its feature has adopted production technique of the present invention exactly, use the tamanori that the present invention disposed, produced the product structure that possesses of the present invention.Remedied the deficiency of coking coal reserves, and reduced user's production cost, if further prescription is adjusted combination and technologicly made a little changes, it is already metallurgical to make the anthracite carbon formed coke use what.Anthracite cocking epoch of playing protagonist will arrive till that time, and the bottle bottleneck that the coking coal shortage becomes coking will be opened.
Claims (3)
1. anthracite carbon casting formed coke, it is characterized in that producing the anthracite carbon formed coke with hard coal or mill coal, adopt the order of production technique to be, enter factory from raw coal, through broken, abrasive dust, it is even to add binding agent, cold stirring, heated and stirred, deliver to extrusion molding on the pressing machine, send the secluding air destructive distillation carbonization under 950 ℃ of-1050 ℃ of high temperature of carbonization chamber after the moulding, cool at last, finished product output, put in storage for sale, be provided with coke-oven gas that the carbonization chamber is produced simultaneously to give comprehensive utilization, adopt and the lime joint process, in the waste gas to flue dust and SO
2Be provided with the operation of dust-removal and desulfurizing.
2. anthracite carbon casting formed coke as claimed in claim 1, it is characterized in that used binder formula reorganization is divided into alcohol ether class 10.0-24%, composite plant fiber 10.0-30.0%, ground dolomite 0.5-1.0%, the ground dolomite fineness is 120 orders, sodium hydroxide 0.8-2.8%, bitter edible plant oil 1.0-2.0%, washing oil 3.0-5.0%, anthracene 5.0-15.0%, resin 30.0-40.0%, polynaphthene answer border hydro carbons 10.0-20.0% to form.
3. anthracite carbon casting formed coke as claimed in claim 1, it is characterized in that burnt body lumpiness is big and even, be set to right cylinder substantially, and can adjust change arbitrarily with customer requirements, the formed coke center has burner port, the airflow space is big, pneumatic unimpeded resistance is little, can improve the formed coke combustionvelocity, and it is many that the unit time produces heat, molten iron is fast, and unit iron liquid lacks than traditional burnt consumption with burnt amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100549992A CN101280203A (en) | 2008-05-19 | 2008-05-19 | Anthracite carbon casting formed coke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100549992A CN101280203A (en) | 2008-05-19 | 2008-05-19 | Anthracite carbon casting formed coke |
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| Publication Number | Publication Date |
|---|---|
| CN101280203A true CN101280203A (en) | 2008-10-08 |
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| CNA2008100549992A Pending CN101280203A (en) | 2008-05-19 | 2008-05-19 | Anthracite carbon casting formed coke |
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| Country | Link |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191107A (en) * | 2011-04-26 | 2011-09-21 | 杨波 | Process for carbonizing organic waste residues |
| CN102643698A (en) * | 2012-05-08 | 2012-08-22 | 宜宾天原集团股份有限公司 | Preparation process of formed coke |
| CN103370396A (en) * | 2010-12-21 | 2013-10-23 | Posco公司 | Method for manufacturing partially carbonized coal briquettes, apparatus for manufacturing partially carbonized coal briquettes, and apparatus for manufacturing molten iron |
| CN104726120A (en) * | 2013-12-23 | 2015-06-24 | Posco公司 | Mixture for producing coke and method for producing coke by using same |
| CN107735481A (en) * | 2015-06-24 | 2018-02-23 | 杰富意钢铁株式会社 | The manufacture method of iron coke article shaped |
| CN110819364A (en) * | 2019-10-30 | 2020-02-21 | 鞍钢股份有限公司 | Method for preparing metallurgical coke |
-
2008
- 2008-05-19 CN CNA2008100549992A patent/CN101280203A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103370396A (en) * | 2010-12-21 | 2013-10-23 | Posco公司 | Method for manufacturing partially carbonized coal briquettes, apparatus for manufacturing partially carbonized coal briquettes, and apparatus for manufacturing molten iron |
| CN103370396B (en) * | 2010-12-21 | 2016-02-24 | Posco公司 | The preparation method of partially carbonized coal briquette, the preparation facilities of partially carbonized coal briquette and molten iron preparation facilities |
| EP2657320A4 (en) * | 2010-12-21 | 2017-06-14 | Posco | Method for manufacturing partially carbonized coal briquettes, apparatus for manufacturing partially carbonized coal briquettes, and apparatus for manufacturing molten iron |
| CN102191107A (en) * | 2011-04-26 | 2011-09-21 | 杨波 | Process for carbonizing organic waste residues |
| CN102643698A (en) * | 2012-05-08 | 2012-08-22 | 宜宾天原集团股份有限公司 | Preparation process of formed coke |
| CN104726120A (en) * | 2013-12-23 | 2015-06-24 | Posco公司 | Mixture for producing coke and method for producing coke by using same |
| CN107735481A (en) * | 2015-06-24 | 2018-02-23 | 杰富意钢铁株式会社 | The manufacture method of iron coke article shaped |
| CN110819364A (en) * | 2019-10-30 | 2020-02-21 | 鞍钢股份有限公司 | Method for preparing metallurgical coke |
| CN110819364B (en) * | 2019-10-30 | 2021-10-22 | 鞍钢股份有限公司 | A kind of method for preparing metallurgical coke |
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Open date: 20081008 |