CN1153810A - Cast coke briquette produced with anthracite and its production process - Google Patents
Cast coke briquette produced with anthracite and its production process Download PDFInfo
- Publication number
- CN1153810A CN1153810A CN 96122322 CN96122322A CN1153810A CN 1153810 A CN1153810 A CN 1153810A CN 96122322 CN96122322 CN 96122322 CN 96122322 A CN96122322 A CN 96122322A CN 1153810 A CN1153810 A CN 1153810A
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- CN
- China
- Prior art keywords
- coke
- coal
- tar
- temperature
- bitumen
- 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.)
- Pending
Links
- 239000000571 coke Substances 0.000 title claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000004484 Briquette Substances 0.000 title abstract 3
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 title abstract 2
- 239000003830 anthracite Substances 0.000 title abstract 2
- 239000003245 coal Substances 0.000 claims abstract description 69
- 238000004939 coking Methods 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000010426 asphalt Substances 0.000 claims abstract description 15
- 238000010791 quenching Methods 0.000 claims abstract description 13
- 230000000171 quenching effect Effects 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 238000005266 casting Methods 0.000 claims description 20
- 150000001875 compounds Chemical class 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 239000011269 tar Substances 0.000 claims description 12
- 238000004898 kneading Methods 0.000 claims description 11
- 241001253206 Andrias Species 0.000 claims description 10
- 239000000470 constituent Substances 0.000 claims description 10
- 238000000748 compression moulding Methods 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000003818 cinder Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 7
- 239000005864 Sulphur Substances 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 5
- 238000013329 compounding Methods 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 10
- 235000019580 granularity Nutrition 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Coke Industry (AREA)
Abstract
The cast coke briquette consists of anthracite, coke powder, petrol coke, coking coal, tar asphalt and high-temp tar, and it is produced via crushing material, compounding, mixing, moulding, carbonating and coke quenching. The present invention can produce quality cast coke briquette, or that with high strength, low ash content, low sulphur content, low porosity and even size.
Description
The present invention relates to a kind of casting formed coke and manufacture method thereof of producing with hard coal.
One-level, the secondary foundry coke of producing mainly is that its defective is that intensity is not high, granularity is difficult to balanced the grasp, thereby its void content is higher with coking coal, rich coal, lean coal coal blending refining smelting at present, and utilization ratio is low, directly affects cast member quality product and cost.And China's coking coal reserves reduce day by day, and industrial water requirement increases day by day both at home and abroad, swashs contradiction day to give prominence to, and the coking coal price is risen steadily, and coke cost increases.
The purpose of this invention is to provide a kind of high strength, low pore, low ash, low-sulfur and low-phosphorous casting formed coke and manufacture method thereof with hard coal production.
Task of the present invention is achieved in that this casting formed coke is made up of hard coal or meager coal, coke powder, refinery coke, coking coal or rich coal, tar-bitumen, high temperature tar, and its weight percent is:
Hard coal or meager coal: 48～57% coke powders: 12～18%
Refinery coke: 10～26% coking coal or rich coal: 6～11%
Tar-bitumen: 6～8% high temperature tars: 2～3%.
Above-mentioned coke powder is high temperature or middle temperature cinder or coke powder.
Manufacture method of the present invention comprises the following steps:
1) pulverize raw material: hard coal or meager coal, coke powder, refinery coke, coking coal or rich coal and tar-bitumen are pulverized by following granularity requirements:
Hard coal or meager coal: 0.5～3mm coke powder:＜40 orders
Refinery coke: 1～4mm coking coal or rich coal:＜1mm
Tar-bitumen: 0.45～1mm,
2), batching: the various raw materials that will crush are placed in each storage hopper, and quantitatively deliver on the rotary conveyor through material feeder by described proportioning;
3) mix material: the compound of being sent here by rotary conveyor stirred in stirrer 4～6 minutes, simultaneously high temperature tar is added in the stirrer after quantitatively and stir, then compound is delivered in the vertical kneading machine of steam-heated cal(l)andria and stirred again 6～8 minutes by rotary conveyor, steam in the vertical kneading machine of steam-heated cal(l)andria is a superheated vapo(u)r, pressure 10～30Pa;
4) compression molding: when the temperature of the compound in the vertical kneading machine of steam-heated cal(l)andria reaches 75 ℃～95 ℃, compound is sent into compression molding in the shaper, the intensity of the one-tenth formed coke base after the moulding is 260～360kg/cm
2, density＞1.2/cm
3
5) charing: will become the oven dry of formed coke base earlier, the one-tenth formed coke base shove charge that then will dry, after the shove charge 460 ℃ of following constant temperature of furnace temperature 3～5 hours, thereafter adjust charring furnace negative pressure gate again, heat up, constant temperature 6～7 hours again under 650 ℃, and then adjust the 1100 ℃ of charings 12～18 hours that are rapidly heated of negative pressure gate, till fugitive constituent was all separated out, at this moment calorific value descended, and can put stove;
6) quenching: transport coke quenching tower to quenching car after putting stove, promptly make casting formed coke with the spray water quenching.
Because the present invention has adopted above-mentioned prescription and manufacture method, therefore compare with background technology, have following advantage:
1, intensity height: the intensity of formed coke of the present invention is M40＞90% after testing, and is higher by 20% than general formed coke intensity of producing with coking coal, rich coal and lean coal coal blending;
2, ash is low: the ash of superfine casting formed coke is 6.0～7.9%, and the ash of one-level casting formed coke is 8.0～9.9%;
3, sulphur content is few: full sulphur is 0.47～0.51%;
4, void content is low: 27～32%;
5, granularity equilibrium: 115 * 155mm or 115 * 135mm.
The present invention is described in further detail below in conjunction with embodiment.
Embodiment 1:
The casting formed coke of present embodiment is made up of following weight percentages: No. three hard coals 49%, high temperature coke powder 18%, refinery coke 11%, coking coal 11%, tar-bitumen 8% and high temperature tars 3%.Wherein: No. three anthracitic inherent ash is 6～6.5%, and the coal ash part of washing after the essence is 7～7.5%, and fugitive constituent is 10～10.8%, cleaned coal water content＜3%.The ash of high temperature coke powder＜10%, fugitive constituent 1.5～2%, sulfur-bearing＜0.8%, moisture content＜3%.The ash of refinery coke≤0.5%, fugitive constituent (butt)＜12%, sulphur≤0.5%, moisture content＜3%.The ash of coking coal is 5.5～6.5%, fugitive constituent 25～30%, sulphur＜0.8%, moisture content＜3%.Molten point 〉=75 of tar-bitumen ℃, ash＜0.5%, fugitive constituent 55～75%, sulphur＜0.5%, moisture content＜5%.The ash of high temperature tar＜0.13%, moisture content＜4%, toluene insolubles＜10%.
The manufacture method of present embodiment comprises the following steps:
1), pulverize raw material: earlier No. three hard coals are pulverized with ring type or reaction type pulverizer, the granularity after requiring to pulverize is 0.5～3mm; The high temperature coke powder is worn into＜40 purpose granularities with ball mill or Raymond machine; Refinery coke is ground into the granularity of 1～4mm with beater grinder; Tar-bitumen and coking coal are ground into the granularity of 0.45～1mm with the ring type pulverizer.
2), batching: the various raw materials that will crush are put into each storage hopper, and quantitatively deliver on the same rotary conveyor by the said ratio of casting formed coke by the automatic ration material feeder.
3), mix material: the compound of being sent here by rotary conveyor stirred in horizontal mixer 4 minutes, stir in the high temperature tar adding stirrer with heating simultaneously, then by rotary conveyor compound is delivered to superheated vapo(u)r and heat and stirred in the vertical kneading machine 6 minutes again, the superheated vapo(u)r pressure in the vertical kneading machine of steam-heated cal(l)andria is 10Pa.The plasticity-that can improve coal charge by this step is to satisfy the needs of moulding.
4), compression molding: when the temperature of the compound in the vertical kneading machine of steam-heated cal(l)andria reaches 75 ℃, compound is sent into compression molding in the shaper, the intensity of the one-tenth formed coke base after the moulding is 360kg/cm
2, density 1.2/cm
3
5), charing: will become the oven dry of formed coke base earlier, the one-tenth formed coke base shove charge that then will dry, after the shove charge, 460 ℃ of following constant temperature of furnace temperature 5 hours, adjust charring furnace negative pressure gate thereafter again and heat up, constant temperature 6 hours again under 650 ℃, and then adjust the 1100 ℃ of charings 16 hours that are rapidly heated of negative pressure gate, till fugitive constituent was all separated out, at this moment calorific value descended, and can put stove.The coke oven that the coke oven that the present invention uses is produced as Korea S three a thousand li coal Co., Ltd..
6), quenching: put and transport coke quenching tower to quenching car behind the stove and promptly make casting formed coke with the spray water quenching.
Embodiment 2:
The casting formed coke of present embodiment is made up of following weight percentages: hard coal 57%, middle temperature coke powder 15%, refinery coke 10%, coking coal 9%, tar-bitumen 7% and high temperature tar 2%.All the other require with embodiment 1.
The manufacture method of present embodiment is with the manufacture method of embodiment 1.Wherein in mixing the step of material: the churning time of compound in horizontal mixer is 6 minutes.Churning time in the vertical kneading machine of steam-heated cal(l)andria is 8 minutes, and superheated vapo(u)r pressure is 30Pa.In the step of compression molding: the temperature of compound is 95 ℃, and becoming the intensity of formed coke base is 260kg/cm
2, density 1.3/cm
3In the charing step: become the formed coke base 460 ℃ of following constant temperature of furnace temperature 3 hours, thereafter adjust charring furnace negative pressure gate again and heat up, constant temperature 7 hours again under 650 ℃, and then adjust the negative pressure gate and be rapidly heated to 1100 ℃ of charings 18 hours, till fugitive constituent is all separated out, can put stove.
Embodiment 3:
The casting formed coke of present embodiment is made up of following weight percentages: hard coal 48%, middle temperature coke powder 12%, refinery coke 26%, coking coal 6%, tar-bitumen 6% and high temperature tar 2%.All the other require with embodiment 1.
The manufacture method of present embodiment is with the manufacture method of embodiment 1.Wherein in mixing the step of material: compound churning time in horizontal mixer is 5 minutes, and the churning time in the vertical kneading machine of steam-heated cal(l)andria is 7 minutes, and superheated vapo(u)r pressure is 20Pa.In the step of compression molding: the temperature of compound is 85 ℃, and becoming the intensity of formed coke base is 300kg/cm
2, density 1.2/cm
3In the charing step: become the formed coke base 460 ℃ of following constant temperature of furnace temperature 4 hours, thereafter adjust charring furnace negative pressure gate again and heat up, constant temperature 6.5 hours again under 650 ℃, and then adjust the negative pressure gate and be rapidly heated to 1100 ℃ of charings 12 hours, till fugitive constituent is all separated out, can put stove.
Embodiment 4:
The casting formed coke of present embodiment is made up of following weight percentages: hard coal 50%, high temperature coke powder 16%, refinery coke 14%, coking coal 9%, tar-bitumen 8% and high temperature tar 3%.All the other require with embodiment 1.
The manufacture method of present embodiment is with the manufacture method of embodiment 1.
With the hard coal in the meager coal replacement the various embodiments described above,, can produce casting formed coke of the present invention equally with the coking coal in the rich coal replacement the various embodiments described above.
In addition, the present invention is not only applicable to hard coal or meager coal is produced casting formed coke, is equally applicable to have with hard coal or meager coal the coal of same nature, as long as it has adopted above-mentioned prescription and manufacture method to produce casting formed coke, also belongs to protection scope of the present invention.
Claims (3)
1, a kind of casting formed coke of producing with hard coal is characterized in that: it is made up of hard coal or meager coal, coke powder, refinery coke, coking coal or rich coal, tar-bitumen, high temperature tar, and its weight percent is:
Hard coal or meager coal: 48～57% coke powders: 12～18%
Refinery coke: 10～26% coking coal or rich coal: 6～11%
Tar-bitumen: 6～8% high temperature tars: 2～3%.
2, a kind of casting formed coke of producing with hard coal according to claim 1, it is characterized in that: described coke powder is high temperature or middle temperature cinder or coke powder.
3, a kind of manufacture method of the casting formed coke of producing with hard coal, it is characterized in that: it comprises the following steps:
1) pulverize raw material: hard coal or meager coal, coke powder, refinery coke, coking coal or rich coal and tar-bitumen are pulverized by following granularity requirements:
Hard coal or meager coal: 0.5～3mm coke powder:＜40 orders
Refinery coke: 1～4mm coking coal or rich coal:＜1mm
Tar-bitumen: 0.45～1mm,
2), batching: the various raw materials that will crush are placed in each storage hopper, and quantitatively deliver on the rotary conveyor through material feeder by described proportioning;
3) mix material: the compound of being sent here by rotary conveyor stirred in stirrer 4～6 minutes, simultaneously high temperature tar is added in the stirrer after quantitatively and stir, then compound is delivered in the vertical kneading machine of steam-heated cal(l)andria and stirred again 6～8 minutes by rotary conveyor, steam in the vertical kneading machine of steam-heated cal(l)andria is a superheated vapo(u)r, pressure 10～30Pa;
4) compression molding: when the temperature of the compound in the vertical kneading machine of steam-heated cal(l)andria reaches 75 ℃～95 ℃, compound is sent into compression molding in the shaper, the intensity of the one-tenth formed coke base after the moulding is 260～360kg/cm
2, density＞1.2/cm
3
5) charing: will become the oven dry of formed coke base earlier, the one-tenth formed coke base shove charge that then will dry, after the shove charge 460 ℃ of following constant temperature of furnace temperature 3～5 hours, thereafter adjust charring furnace negative pressure gate again, heat up, constant temperature 6～7 hours again under 650 ℃, and then adjust the 1100 ℃ of charings 12～18 hours that are rapidly heated of negative pressure gate, till fugitive constituent was all separated out, at this moment calorific value descended, and can put stove;
6) quenching: transport coke quenching tower to quenching car after putting stove, promptly make casting formed coke with the spray water quenching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96122322 CN1153810A (en) | 1996-10-25 | 1996-10-25 | Cast coke briquette produced with anthracite and its production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96122322 CN1153810A (en) | 1996-10-25 | 1996-10-25 | Cast coke briquette produced with anthracite and its production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1153810A true CN1153810A (en) | 1997-07-09 |
Family
ID=5127262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96122322 Pending CN1153810A (en) | 1996-10-25 | 1996-10-25 | Cast coke briquette produced with anthracite and its production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1153810A (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063777C (en) * | 1997-11-07 | 2001-03-28 | 张炳魁 | Metallurgical waste ash content controlled formed coke and molding coal and its producing method |
| CN1077912C (en) * | 1999-11-26 | 2002-01-16 | 山西千熺型焦科技有限公司 | Shaped coke produced win non-adhesive coal and its prodn. method |
| CN1091132C (en) * | 2000-08-29 | 2002-09-18 | 镇江焦化煤气集团公司 | Technological process of producing calcined petroleum coke in coke oven |
| CN1127553C (en) * | 1999-12-22 | 2003-11-12 | 葛立奎 | Method for producing formed coke by using low-ash high-volatile long-flame coal |
| CN101955784A (en) * | 2010-09-27 | 2011-01-26 | 山东科技大学 | Coking composite leaning agent and preparation method thereof |
| CN101225339B (en) * | 2007-12-18 | 2011-08-24 | 陈善堂 | Formed coke clean production equipment |
| CN101284997B (en) * | 2008-05-28 | 2011-11-30 | 神华集团有限责任公司 | Process for producing first-class metallurgical coke by coking coal with high sulphur and high ash |
| CN101250418B (en) * | 2008-04-08 | 2011-12-21 | 朱海涛 | Gasification, dry distillation and carbonization integrated system carbonization method |
| CN101531908B (en) * | 2009-04-17 | 2012-02-22 | 李树斗 | Novel process for coal-blending and coking of kilkenny coal in vast scale |
| CN102392134A (en) * | 2011-11-24 | 2012-03-28 | 自贡市远发特种材料厂 | High-efficiency reducing agent for casting and preparation method thereof |
| CN104194813A (en) * | 2014-09-04 | 2014-12-10 | 山东巨铭能源有限公司 | Method for preparing coke |
| CN104194816A (en) * | 2014-09-04 | 2014-12-10 | 山东巨铭能源有限公司 | Method for preparing coke |
| CN105765034A (en) * | 2013-12-04 | 2016-07-13 | 株式会社神户制钢所 | Method for producing coke, and coke |
| CN106833707A (en) * | 2017-01-20 | 2017-06-13 | 青岛联合冶金研究院有限公司 | For manufacturing the mixed coal of cupola coke and the cupola coke including it and its manufacture method |
| CN107286968A (en) * | 2017-07-04 | 2017-10-24 | 山东焦化集团铸造焦有限公司 | Coal for coking and coking process |
| CN110257087A (en) * | 2019-06-25 | 2019-09-20 | 包头钢铁（集团）有限责任公司 | A kind of 40Kg testing coke oven heating control technique |
| CN110760325A (en) * | 2019-11-08 | 2020-02-07 | 吴彩锋 | Preparation method of inorganic non-metallic material for energy conversion |
| CN111004639A (en) * | 2019-12-07 | 2020-04-14 | 徐州东兴能源有限公司 | Production process of coke |
| CN111575033A (en) * | 2020-05-11 | 2020-08-25 | 山西沁新能源集团股份有限公司 | Formed coke and preparation method and application thereof |
| CN111575034A (en) * | 2020-05-11 | 2020-08-25 | 山西沁新能源集团股份有限公司 | Formed coke and preparation method and application thereof |
| CN112410051A (en) * | 2020-11-05 | 2021-02-26 | 福建三宝钢铁有限公司 | Coke oven external baking process |
-
1996
- 1996-10-25 CN CN 96122322 patent/CN1153810A/en active Pending
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063777C (en) * | 1997-11-07 | 2001-03-28 | 张炳魁 | Metallurgical waste ash content controlled formed coke and molding coal and its producing method |
| CN1077912C (en) * | 1999-11-26 | 2002-01-16 | 山西千熺型焦科技有限公司 | Shaped coke produced win non-adhesive coal and its prodn. method |
| CN1127553C (en) * | 1999-12-22 | 2003-11-12 | 葛立奎 | Method for producing formed coke by using low-ash high-volatile long-flame coal |
| CN1091132C (en) * | 2000-08-29 | 2002-09-18 | 镇江焦化煤气集团公司 | Technological process of producing calcined petroleum coke in coke oven |
| CN101225339B (en) * | 2007-12-18 | 2011-08-24 | 陈善堂 | Formed coke clean production equipment |
| CN101250418B (en) * | 2008-04-08 | 2011-12-21 | 朱海涛 | Gasification, dry distillation and carbonization integrated system carbonization method |
| CN101284997B (en) * | 2008-05-28 | 2011-11-30 | 神华集团有限责任公司 | Process for producing first-class metallurgical coke by coking coal with high sulphur and high ash |
| CN101531908B (en) * | 2009-04-17 | 2012-02-22 | 李树斗 | Novel process for coal-blending and coking of kilkenny coal in vast scale |
| CN101955784B (en) * | 2010-09-27 | 2013-03-06 | 山东科技大学 | Coking composite leaning agent and preparation method thereof |
| CN101955784A (en) * | 2010-09-27 | 2011-01-26 | 山东科技大学 | Coking composite leaning agent and preparation method thereof |
| CN102392134A (en) * | 2011-11-24 | 2012-03-28 | 自贡市远发特种材料厂 | High-efficiency reducing agent for casting and preparation method thereof |
| CN102392134B (en) * | 2011-11-24 | 2013-03-13 | 自贡市远发特种材料厂 | High-efficiency reducing agent for casting and preparation method thereof |
| CN105765034A (en) * | 2013-12-04 | 2016-07-13 | 株式会社神户制钢所 | Method for producing coke, and coke |
| CN105765034B (en) * | 2013-12-04 | 2017-09-22 | 株式会社神户制钢所 | The manufacture method and coke of coke |
| CN104194813A (en) * | 2014-09-04 | 2014-12-10 | 山东巨铭能源有限公司 | Method for preparing coke |
| CN104194816A (en) * | 2014-09-04 | 2014-12-10 | 山东巨铭能源有限公司 | Method for preparing coke |
| CN106833707A (en) * | 2017-01-20 | 2017-06-13 | 青岛联合冶金研究院有限公司 | For manufacturing the mixed coal of cupola coke and the cupola coke including it and its manufacture method |
| CN107286968A (en) * | 2017-07-04 | 2017-10-24 | 山东焦化集团铸造焦有限公司 | Coal for coking and coking process |
| CN110257087A (en) * | 2019-06-25 | 2019-09-20 | 包头钢铁（集团）有限责任公司 | A kind of 40Kg testing coke oven heating control technique |
| CN110760325A (en) * | 2019-11-08 | 2020-02-07 | 吴彩锋 | Preparation method of inorganic non-metallic material for energy conversion |
| CN111004639A (en) * | 2019-12-07 | 2020-04-14 | 徐州东兴能源有限公司 | Production process of coke |
| CN111575033A (en) * | 2020-05-11 | 2020-08-25 | 山西沁新能源集团股份有限公司 | Formed coke and preparation method and application thereof |
| CN111575034A (en) * | 2020-05-11 | 2020-08-25 | 山西沁新能源集团股份有限公司 | Formed coke and preparation method and application thereof |
| CN111575034B (en) * | 2020-05-11 | 2021-08-10 | 山西沁新能源集团股份有限公司 | Formed coke and preparation method and application thereof |
| CN112410051A (en) * | 2020-11-05 | 2021-02-26 | 福建三宝钢铁有限公司 | Coke oven external baking process |
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