CN1537920A - Coal for coking prepared from anthracite and coke produced from said coal and production method of said coke - Google Patents
Coal for coking prepared from anthracite and coke produced from said coal and production method of said coke Download PDFInfo
- Publication number
- CN1537920A CN1537920A CNA2003101096268A CN200310109626A CN1537920A CN 1537920 A CN1537920 A CN 1537920A CN A2003101096268 A CNA2003101096268 A CN A2003101096268A CN 200310109626 A CN200310109626 A CN 200310109626A CN 1537920 A CN1537920 A CN 1537920A
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- China
- Prior art keywords
- coal
- coking
- coke
- weight
- hard
- 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.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 151
- 238000004939 coking Methods 0.000 title claims abstract description 64
- 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 6
- 239000003830 anthracite Substances 0.000 title claims abstract description 6
- 239000000571 coke Substances 0.000 title claims description 49
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 10
- 239000000470 constituent Substances 0.000 claims description 8
- 238000010298 pulverizing process Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 238000000197 pyrolysis Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 9
- 239000002802 bituminous coal Substances 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 239000005864 Sulphur Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007493 shaping process Methods 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
A coal mixture for coking is prepared from anthracite, rich coal and 1/3 coked coal in ratio of 40-60 wt.%:20-35 wt.%:20-35 wt.%. Its volatile component is 18-23%. Its adhesive index is 36-48 and its gelatinous layer (Y value) is 10-12. Its advantage is low cost.
Description
Technical field
The present invention relates to a kind of coking coal and coke of producing with this coking coal and method of producing this coke through proportioning.
Background technology
Just as the fugitive constituent ratio in a kind of leaning agent adjusting coke making and coal blending, general volume is no more than 10% to hard coal in coke making and coal blending in the conventional art.In recent years because the coking coal resource is becoming tight, and price is surging, people begin one's study and join at high proportion hard coal in the coking coal as the feasibility of coking coal.Chinese patent 95104930 disclosed " a kind of " by hard coal and the formulated coking coal of bituminous coal, employing is the proportional quantity of 20-70%: 30-80% (weight) based on hard coal and hard coal and bituminous coal ratio, its bituminous coal that adopts is rich coal, if this coking coal wherein hard coal ratio surpasses 40%, be the coke produced of raw material with it since in the coal blending volatile content low, bad adhesion, therefore its intensity is all lower usually, the coke lumpiness is little, broken easily, can not use as common metallurgical coke, this coking coal more is difficult to produce the higher foundry coke of specification of quality.Similarly also have Chinese patent 97101391 disclosed " hard coal furnace and coking process thereof " with above-mentioned patent, hard coal and rich coal proportioning are 2-5: 5-8 in the wherein disclosed coking coal.The defective of its existence is similar to aforementioned patent.This patent also discloses a kind of coking process, and it is to adopt internal combustion formula down-flame improvement stove, tamps after coking coal is gone into stove.This coking mode is because the wasting of resources is big, and environmental pollution is serious, is now banned by country.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, having proposed a kind of is the production method of coking coal and coke He this coke that this coking coal is raw material production of main raw material with the hard coal.It is poor for applicability to the invention solves the coking coal that hard coal and rich coal constitute in the prior art, and the coke strenth of production is low, and lumpiness is little, and of poor quality and production technique such as falls behind at deficiency.
Of the present invention is the coking coal of main raw material with the hard coal, contain hard coal and rich coal, wherein also be furnished with a certain proportion of 1/3 coking coal, the proportioning of above-mentioned three kinds of compositions is: hard coal: rich coal: 1/3 coking coal=40-60% (weight): 20-35% (weight): 20-35% (weight).
The physical and chemical index of the coking coal of said ratio is fugitive constituent=18-23%; Caking index=36-48; Gelatinous layer (Y value)=10-12.
Coking coal of the present invention is main coal with hard coal, add again and join rich coal and 1/3 coking coal can be refined various metallurgical cokes and foundry coke, expand the useful raw materials source of coking industry greatly, reduced the coke production cost significantly, can save a large amount of coking coal resources.And enlarge anthracitic range of application.
Of the present invention is the coke of the coking coal production of main raw material with the hard coal, the proportioning raw materials of wherein said coke is a hard coal: rich coal: 1/3 coking coal=40-60% (weight): 20-35% (weight): 20-35% (weight), and the physical and chemical index of this feed coal is: fugitive constituent=18-23%; Caking index=36-48; Gelatinous layer (Y value)=10-12.
Adopt the coke of coking coal production of the present invention to have following advantage: the first, the thermal response index is good, and wherein the CRI of the reactive low index of elevated temperature heat is 20.8-22.8%, and post-reaction strength high target CSR is 67.4-72.3%.These two indexs all are better than the requirement of outlet coke index.Because the post-reaction strength index of this coke is higher, its stock column skeleton that melts section in stove is fairly obvious, is difficult for broken; And good permeability, help improving furnace temperature, can significantly reduce coke ratio.And can reach 500M
3The use standard of above large blast furnace and cupola furnace.The second, the thermal value height, because anthracitic thermal value all is higher than bituminous coal usually, based on hard coal, the coke thermal value of its production obviously improves than the thermal value of ordinary coke in the coking coal of the present invention.The 3rd, coke cold strength height, wherein barrate strength M
40Be 88.8%, SI
50Index is 92-95%, and this coke is in transportation, and the broken burnt rate in the cargo handling process is lower than 4%, and the broken burnt rate of the same process of ordinary coke is up to 10-15%.The 4th, because the bituminous coal of China, the general sulfur-bearing height of coking coal particularly, thereby reduction coke sulphur content is a difficult problem all the time, and the coke that uses coking coal of the present invention to produce, owing to adopt the coal blending of vast scale low-sulfur hard coal, reduce bituminous coal coal blending ratio significantly, thereby can reduce the sulphur content of coke greatly.The test sulphur content is 0.38%.The sulfur-bearing index request that is better than foundry coke.Table 1 has been listed the coke result of laboratory test that adopts coking coal of the present invention to produce.
Table 1
| Numbering | Technical analysis % | Full sulphur % | Phosphorus % | Physical strength | Reactive | Post-reaction strength | ||||
| ????Mad | ??Ad | ??Vdaf | ??St，d | ??Pad | ????M40 | ??M25 | ??M10 | ??CRI，％ | ??CSR，％ | |
| 1 | ????0.18 | ??11.65 | ??1.23 | ??0.38 | ??0.024 | ????88.6 | ??98.6 | ??7.3 | ??22.6 | ??66.1 |
It is the method for the coke of main raw material with the hard coal that the present invention produces above-mentioned, mainly comprises the steps:
A: coal separation, get hard coal 40-60% (weight); Rich coal 20-35% (weight); 1/3 coking coal 20-35% (weight);
B: pulverized anthracite is broken to particle diameter less than 5mm;
C: the hard coal after will pulverizing with joining rich coal and 1/3 coking coal mix, carry out the second time and pulverize, the raw coal size that makes gained 92-95% is less than 3mm;
D: make moulding firm by ramming;
E: go into the stove destructive distillation.
The production method of coke of the present invention adopts on the basis of hard coal and bituminous coal at high proportion and is equipped with 1/3 coking coal, the intensity and the lumpiness that help making moulding firm by ramming and improve coking property and coke; Adopt the technology of making firm by ramming of stokehold, be added to the compactness of stove coal, can improve the intensity and the lumpiness of coke.Hard coal is carried out the secondary pulverizing after the pulverizing separately again with after other two kinds of coal blendings mix, strengthened the homogeneity of each coal blending composition.
Embodiment
Of the present invention is the production method of coking coal and coke He this coke that this coking coal is raw material production of main raw material with the hard coal, chooses hard coal 40-60% (weight), rich coal 20-35% (weight), 1/3 coking coal 20-35% (weight).1/3 coking coal of the present invention can partly or entirely be replaced by other coking coal, and is consequently identical, and described rich coal can be replaced by part bottle coal or gas-fat coal.The physical and chemical index of the coking coal after above-mentioned three kinds of raw coal cooperate should reach fugitive constituent=18-23%; Caking index=36-48; Gelatinous layer (Y value)=10-12.Hard coal is crushed to the material footpath separately for below the 5mm; Carry out the secondary pulverizing again with after the rich coal of being joined, 1/3 coking coal mix, after pulverizing, secondary make the feed coal particle diameter of 92-95% less than 3mm, feed coal water ratio after the pulverizing is controlled at 9-11%, and promptly becoming of the present invention is the coking coal of main raw material with the hard coal.
Make above-mentioned coking coal firm by ramming moulding, the density of shaping raw material coal is 1.02-1.08;
Above-mentioned feed coal of making moulding firm by ramming is gone into stove destructive distillation coking, and promptly constituting of the present invention is the coke of the coking coal production of main raw material with the hard coal.
Embodiment 1 gets 40 tons in Jincheng hard coal; 35 tons of Pu County rich coal; 25 tons in 1/3 coking coal.At first pulverized anthracite is broken to granularity less than 5mm, then three kinds of raw coal is mixed, the coal particle diameter that further is crushed to 92-95% in whole mixed coals is less than 3mm.So far obtain coking coal of the present invention (batching coal), its caking index is 40, fugitive constituent 22%, Y value=16.6.The coal of should preparing burden is made moulding firm by ramming by the hydraulic pressure tamping unit makes its degree of compactness reach 1.02-1.08, right fed to boiler destructive distillation coking.Promptly get coke of the present invention.
Embodiment 2-6 is provided by table 2.Wherein added a small amount of gas-fat coal among the embodiment 3.Embodiment 4-6 has part or all of 1/3 Jiao for to be replaced by coking coal, and other is identical with embodiment 1.
Table 2
| Embodiment | Coal blending kind and quantity (ton) | The coal blending index | Make degree of compactness firm by ramming | ||||||
| Hard coal | Rich coal | Gas-fat coal | 1/3 coking coal | Coking coal | Fugitive constituent % | Caking index | The Y value | ||
| ????2 | ????45 | ????25 | ???30 | ????20 | ??46 | ????11 | ????1.05 | ||
| ????3 | ????50 | ????20 | ????10 | ???20 | ????20 | ??45 | ????10 | ????1.02 | |
| ????4 | ????60 | ????20 | ????20 | ????18.5 | ??36 | ????10 | ????1.03 | ||
| ????5 | ????40 | ????25 | ???25 | ????10 | ????20.5 | ??48 | ????12 | ????1.07 | |
| ????6 | ????55 | ????20 | ???15 | ????10 | ????18 | ??40 | ????11 | ????1.08 | |
Claims (8)
1, a kind of is the coking coal of main raw material with the hard coal, contain hard coal and rich coal, it is characterized in that also being furnished with a certain proportion of 1/3 coking coal, the proportioning of above-mentioned three kinds of compositions is: hard coal: rich coal: 1/3 coking coal=40-60% (weight): 20-35% (weight): 20-35% (weight).
2, according to claim 1 be the coking coal of main raw material with the hard coal, the coking coal physical and chemical index that it is characterized in that described proportioning is fugitive constituent=18-23%; Caking index=36-48; Gelatinous layer (Y value)=10-12.
3, a kind of coke of producing by claim 1 and 2 described coking coals, the proportioning raw materials that it is characterized in that described coke is a hard coal: rich coal: 1/3 coking coal=40-60% (weight): 20-35% (weight): 20-35% (weight), and the physical and chemical index of this feed coal is: fugitive constituent=18-23%; Caking index=36-48; Gelatinous layer (Y value)=10-12.
4, the method for the described coke of a kind of production claim 3 is characterized in that mainly comprising the steps:
A: coal separation, get hard coal 40-60% (weight); Rich coal 20-35% (weight); 1/3 coking coal 20-35% (weight);
B: pulverized anthracite is broken to particle diameter less than 5mm;
C: the hard coal after will pulverizing with joining rich coal and 1/3 coking coal mix, through for the second time be crushed to make 92-95% raw coal size less than 3mm;
D: make moulding firm by ramming;
E: go into the stove destructive distillation.
5, according to the method for the production coke of claim 4, the proportioning ratio that it is characterized by described each composition is a hard coal: rich coal: 1/3 coking coal=45-50% (weight): 25-30% (weight): 25-30% (weight).
6,, it is characterized in that describedly making moulding firm by ramming and adopting hydraulic pressure to make moulding process firm by ramming according to the method for claim 4 or 5 described production coke.
7,, it is characterized in that described degree of compactness of making the batching coal of moulding firm by ramming is 1.02-1.08 according to the method for claim 4 or 5 described production coke.
8,, it is characterized in that described degree of compactness of making moulding batching coal firm by ramming is 1.02-1.08 according to the method for the production coke of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310109626 CN1244668C (en) | 2003-10-22 | 2003-10-22 | Coal for coking prepared from anthracite and coke produced from said coal and production method of said coke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310109626 CN1244668C (en) | 2003-10-22 | 2003-10-22 | Coal for coking prepared from anthracite and coke produced from said coal and production method of said coke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1537920A true CN1537920A (en) | 2004-10-20 |
| CN1244668C CN1244668C (en) | 2006-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310109626 Expired - Lifetime CN1244668C (en) | 2003-10-22 | 2003-10-22 | Coal for coking prepared from anthracite and coke produced from said coal and production method of said coke |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768456A (en) * | 2010-02-10 | 2010-07-07 | 王晓琴 | Cast coke manufactured by anthracite powder and production method thereof |
| CN101870875A (en) * | 2009-04-22 | 2010-10-27 | 中国神华能源股份有限公司 | Method for producing metallurgical coke from 1/3 coking coal and non-coking coal |
| CN101531908B (en) * | 2009-04-17 | 2012-02-22 | 李树斗 | Novel process for coal-blending and coking of kilkenny coal in vast scale |
| CN102925183A (en) * | 2012-10-23 | 2013-02-13 | 鞍钢股份有限公司 | Hot tamping coke making method |
| CN105542821A (en) * | 2016-01-19 | 2016-05-04 | 张学梅 | Coking coal blending 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 |
| CN111303922A (en) * | 2020-03-20 | 2020-06-19 | 武汉科技大学 | Coking coal and coking method for top-loaded coke by using same |
-
2003
- 2003-10-22 CN CN 200310109626 patent/CN1244668C/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531908B (en) * | 2009-04-17 | 2012-02-22 | 李树斗 | Novel process for coal-blending and coking of kilkenny coal in vast scale |
| CN101870875A (en) * | 2009-04-22 | 2010-10-27 | 中国神华能源股份有限公司 | Method for producing metallurgical coke from 1/3 coking coal and non-coking coal |
| CN101870875B (en) * | 2009-04-22 | 2013-05-15 | 中国神华能源股份有限公司 | Method for producing metallurgical coke from 1/3 coking coal and non-coking coal |
| CN101768456A (en) * | 2010-02-10 | 2010-07-07 | 王晓琴 | Cast coke manufactured by anthracite powder and production method thereof |
| CN101768456B (en) * | 2010-02-10 | 2013-06-05 | 山西煤炭职业技术学院 | Production method of cast coke manufactured by anthracite powder |
| CN102925183A (en) * | 2012-10-23 | 2013-02-13 | 鞍钢股份有限公司 | Hot tamping coke making method |
| CN105542821A (en) * | 2016-01-19 | 2016-05-04 | 张学梅 | Coking coal blending 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 |
| CN111303922A (en) * | 2020-03-20 | 2020-06-19 | 武汉科技大学 | Coking coal and coking method for top-loaded coke by using same |
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| Publication number | Publication date |
|---|---|
| CN1244668C (en) | 2006-03-08 |
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Owner name: SHANXI XING HIGH ENERGY CO., LTD. Free format text: FORMER OWNER: GAO ZHICHENG Effective date: 20080725 |
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Effective date of registration: 20080725 Address after: Tang East Village, Ma Town, Gaoping, Shanxi Patentee after: Shanxi Xinggao Energy Co.,Ltd. Address before: Ma Village, Gaoping, Jincheng, Shanxi, Macun Patentee before: Gao Zhicheng |
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Granted publication date: 20060308 |