CN103146407A - Coking coal blending method of wide carbonization chamber coke oven - Google Patents
Coking coal blending method of wide carbonization chamber coke oven Download PDFInfo
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Abstract
The invention discloses a coking coal blending method of a wide carbonization chamber coke oven. The method comprises a step of blending various single coking coals, wherein each single coking coal comprises the following components in percentage by weight: 16-25% of lean coal and meager lean coal, 10-20% of fat coal 1#, 17-29% of 1/3 coking coal, 15-20% of coking coal 1#, 6-20% of coking coal 2#, 5-10% of coking coal 3#, 6-10% of gas-fat coal and fat coal 2# and the balance of other random available coking coal of which the volatile component content Vdaf is less than or equal to 35%; the maximum Gieseler fluidity of the compound coal is 600-1,400ddpm; and the volatile components account for 24-27%. The method disclosed by the invention effectively reduces the coal preparation cost, overcomes adverse impact on the high-temperature flowing property of the coking coal caused by the heating speed reduction in a coking process of the wide carbonization chamber coke oven, effectively reduces the graphite accumulation speed on the oven top and improves the coke quality and the coke output.
Description
Technical field
The invention belongs to metallurgical coking technology field, be specifically related to a kind of coke making and coal blending method of coking chamber coke oven with width.
Background technology
Each coking enterprise is due to the impact that is subjected to the coking coal resource purchase channel, and in order to stablize coke quality, the usage ratio of general tree bottle coal, gas-fat coal, rich coal, 1/3 coking coal, coking coal and the large class of these coking coals of lean coal is done significantly to adjust simultaneously.The tradition Coal Blending Technology uses coking coal in order to produce the high grade coke vast scale, the coking coal allocation ratio is up to 60%, lean coal, meager lean coal are poor and substantially do not have a temperature flowing performance due to agglutinating value(of coal), therefore adapted ratio lower (generally lower than 8%) or even use in coke making and coal blending.
7.63 the rice coke oven is the super-huge coke oven of a kind of wide coking chamber of introducing from Germany in recent years, successively the large-scale steel enterprise subordinate of several families coke-oven plant is constructed and put into operation at home.7.63 the wide 590mm of rice coke furnace carbonization chamber, design coking time 25.8 hours, and domestic 6 meters wide 450mm of coke furnace carbonization chamber that generally adopt, design coking time 19 hours.Due to the heat-up rate in coal charge in 7.63 meters coke furnace carbonization chambers especially coking chamber center coal charge coking process than 6 meters traditional coke ovens slowly approximately 26%, continuation is carried out coal-blending coking according to the coke making and coal blending method of 6 meters coke ovens, the temperature flowing of mixed coal is with remarkable variation, thereby mixed coal can not get fully being mixed between Coal rank in heating coking process, also just can not get the coke of quality homogeneous.In addition, in the situation that the mixed coal volatile matter in coking chamber is higher, be subjected to the thermogenetic coal gas amount can be larger, due to coal gas under greater than 850 ℃ of hot conditionss again easily pyrolysis generate graphite, and 7.63 meters coke ovens adopt three sections heating, the carbonization chamber furnace top room temps is difficult to control than 6 meters coke ovens, general high approximately 40 ℃ than 6 meters coke ovens of furnace roof room tempss, higher furnace roof room temps can be accelerated the speed of furnace roof calculus China ink, therefore, the high oven top of coke oven calculus of mixed coal volatile matter China ink is serious, and some coke-oven plants have empty the burning 4～5 hours of need not coalingging after 30 stove coke pushings per month.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of coke making and coal blending method of coking chamber coke oven with width, carry out coal-blending coking according to the method, not only can effectively overcome 7.63 meters coking chamber coke oven with width coking process heat-up rates reductions to the disadvantageous effect of coking coal temperature flowing performance, and can effectively slow down furnace roof calculus China ink speed.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of coke making and coal blending method of coking chamber coke oven with width comprises the step that each single kind coking coal is mixed, and described each single coking coal of planting comprises lean coal, meager lean coal, rich coal 1#, rich coal 2#, 1/3 coking coal, gas-fat coal, coking coal 1#, coking coal 2#, coking coal 3#;
Each single weight percent of planting coking coal is: lean coal and meager lean coal: 16～25%; Rich coal 1#:10～20%, 1/3 coking coal: 17～29%; Coking coal 1#:15～20%, coking coal 2#:6～20%, coking coal 3#:5～10%; Gas-fat coal and rich coal 2#:6～10%; Surplus is other volatile matter V arbitrarily
daf≤ 35% utilized coking coal;
And mixed coal: maximum Giseeler fluidity is 600～1400ddpm, 24%≤V
daf≤ 27%;
The volatile matter V of described lean coal and meager lean coal
dafBe 10.0～20.0%, adhesive index 〉=10;
The volatile matter V of described coking coal 1#
dafBe 20.0～28.0%, adhesive index 〉=84, maximum thickness of plastic layer Y 〉=16mm, maximum Giseeler fluidity lgMF 〉=2.8, Gu-softening temperature is interval 〉=and 84 ℃;
The volatile matter V of described coking coal 2#
dafBe 20.0～28.0%, adhesive index is 80～84, maximum thickness of plastic layer Y 〉=14mm, and coking coarse grain pattern structure ratio is 46～54%;
The volatile matter V of described coking coal 3#
dafBe 20.0～28.0%, adhesive index is 70～80;
The volatile matter V of described rich coal 1#
dafBe 28.0～33.0%, adhesive index〉90, maximum thickness of plastic layer Y〉25.0mm, maximum Giseeler fluidity lgMF 〉=4.3, Gu-softening temperature is interval〉100 ℃;
The volatile matter V of described rich coal 2#
dafBe 33.0～37.0%, adhesive index〉90, maximum thickness of plastic layer Y〉25.0mm, maximum Giseeler fluidity lgMF 〉=4.6, Gu-softening temperature is interval〉100 ℃;
The volatile matter V of described 1/3 coking coal
dafBe 28.0～34.0%, adhesive index 〉=85, maximum thickness of plastic layer Y is 16～22mm, maximum Giseeler fluidity lgMF 〉=3.0, Gu-softening temperature is interval〉80 ℃;
The volatile matter V of described gas-fat coal
dafFor 37.0%, adhesive index〉90, maximum thickness of plastic layer Y〉25.0mm, maximum Giseeler fluidity lgMF 〉=4.8, Gu-softening temperature is interval〉95 ℃.
Further, described mixed coal: maximum Giseeler fluidity is 1000～1200ddpm.
Further, described each single weight percent of planting coking coal is: lean coal and meager lean coal: 18～21%; Rich coal 1#:12～18%; 1/3 coking coal: 20～25%; Gas-fat coal and rich coal 2#:6～8%; Coking coal 1#:16～20%; Coking coal 2#:8～15%; Coking coal 3#:6～8%; Surplus is other volatile matter V arbitrarily
daf≤ 35% utilized coking coal.
Further, described each single weight percent of planting coking coal is: lean coal and meager lean coal: 18～21%; Rich coal 1#:12～16%; 1/3 coking coal: 20～24%; Gas-fat coal and rich coal 2#:6～7%; Coking coal 1#:17～20%; Coking coal 2#:8～11%; Coking coal 3#:6～8%; Surplus is other volatile matter V arbitrarily
daf≤ 35% utilized coking coal.
The present invention has advantages of as follows:
1) by strengthening lean coal and the meager lean coal amount of allocating into (at present, 7.63 meters coke oven lean coals of domestic coal chemical enterprise and meager lean coal adapted amount sum are up to 12%) in mixed coal, can effectively reduce the cost of coal blending.
2) the present invention studies show that: after heat-up rate reduces, gas-fat coal, rich coal, the equal variation of the temperature flowing of 1/3 coking coal and coking coal, and the reduction of heat-up rate is different (seeing Table 1) to the influence degree of different sorts coking coal temperature flowing performance, and lean coal and meager lean coal are owing to just not having mobility when the normal heat-up rate, therefore the reduction of heat-up rate does not exert an influence to the high temperature thermal characteristics of lean coal and meager lean coal, increase lean coal and the allocate amount of meager lean coal in mixed coal and simultaneously the maximum Giseeler fluidity of mixed coal is controlled to be the maximum Giseeler fluidities of 6 meters coke oven mixed coals of 600～1400ddpm(tradition and be controlled at 300～1000ddpm), can alleviate wide coking chamber furnace coking process heat-up rate reduction to the disadvantageous effect of coking coal temperature flowing performance, make mixed coal can mixing between Coal rank in heating coking process abundant, thereby obtain the coke of quality homogeneous, at the Simultaneous Stabilization that improves coke output coke quality.
The impact of the reduction of table 1 heat-up rate on Coal rank temperature flowing performance
3) due to lean coal and the meager lean coal volatile matter lower; the increase of its amount of allocating in mixed coal can effectively reduce the volatile matter of mixed coal, thereby slows down furnace roof calculus China ink speed; avoid affecting coke oven and normally produce, alleviate the operator except graphite workload and protection coke oven top furnace wall.Each correlation parameter is by " the mixed coal volatile matter V before implementing
dafNear 30%, coke CSR 〉=66%, 7.63 a meter coke oven coke monthly output is 16.66 ten thousand tons/2, the empty situation of burning 4～5 hours of not coalingging after coke pushing: 30 stove/moons " change into " mixed coal volatile matter 24%≤V after enforcement
daf≤ 27%, coke CSR 〉=66%, 7.63 a meter coke oven coke has a daily output of 17.16～17.67 ten thousand tons/2, and has stopped after the coke pushing coking chamber empty phenomenon of burning 4～5 hours of need to not coalingging ".
Embodiment
The present invention is further detailed explanation below in conjunction with embodiment.
In an embodiment, the single technical indicator of planting coking coal of each that uses is: lean coal and meager lean coal: volatile matter V
dafBe 10.0～20.0%, adhesive index 〉=10; Coking coal 1#: volatile matter V
dafBe 20.0～28.0%, adhesive index 〉=84, maximum thickness of plastic layer Y 〉=16mm, maximum Giseeler fluidity lgMF 〉=2.8, Gu-softening temperature is interval 〉=and 84 ℃; Coking coal 2#: volatile matter V
dafBe 20.0～28.0%, adhesive index is 80～84, maximum thickness of plastic layer Y 〉=14mm, and coking coarse grain pattern structure ratio is 46～54%; Coking coal 3#: volatile matter V
dafBe 20.0～28.0%, adhesive index is 70～80; Rich coal 1#: volatile matter V
dafBe 28.0～33.0%, adhesive index〉90, maximum thickness of plastic layer Y〉25.0mm, maximum Giseeler fluidity lgMF 〉=4.3, Gu-softening temperature is interval〉100 ℃; Rich coal 2#: volatile matter V
dafBe 33.0～37.0%, adhesive index〉90, maximum thickness of plastic layer Y〉25.0mm, maximum Giseeler fluidity lgMF 〉=4.6, Gu-softening temperature is interval〉100 ℃; 1/3 coking coal: volatile matter V
dafBe 28.0～34.0%, adhesive index 〉=85, maximum thickness of plastic layer Y is 16～22mm, maximum Giseeler fluidity lgMF 〉=3.0, Gu-softening temperature is interval〉80 ℃; Gas-fat coal: volatile matter V
dafFor 37.0%, adhesive index〉90, maximum thickness of plastic layer Y〉25.0mm, maximum Giseeler fluidity lgMF 〉=4.8, Gu-softening temperature is interval〉95 ℃.
Embodiment 1
A kind of coke making and coal blending method of coking chamber coke oven with width comprises the step that each single kind coking coal is mixed, and described each single weight percent of planting coking coal is: lean coal: 10%; Meager lean coal: 8%; Rich coal 1#:15%; 1/3 coking coal: 20%; Coking coal 1#:15%; Coking coal 2#:15%; Coking coal 3#:5%; Gas-fat coal: 8%; Bottle coal (volatile matter V
dafBe that 31%, G value is 70): 4%;
And the maximum Giseeler fluidity of mixed coal is controlled to be 1000～1200ddpm, and volatile matter is controlled to be 24～27%.
According to the method coal blending, 17.16～17.67 ten thousand tons/2 of gained coke CSR 〉=66%, 7.63 meter coke oven coke day output, coking chamber empty the burning 4～5 hours that do not need not coaling after coke pushing alleviated the operator except the graphite workload and protected coke oven top furnace wall.
Embodiment 2
A kind of coke making and coal blending method of coking chamber coke oven with width comprises the step that each single kind coking coal is mixed, and described each single weight percent of planting coking coal is: lean coal: 20%; Rich coal 1#:10%; 1/3 coking coal: 26%; Coking coal 1#:15%; Coking coal 2#:12%; Coking coal 3#:6%; Gas-fat coal: 3%; Rich coal 2#:5 %; Bottle coal (volatile matter V
dafBe 31%, the adhesive index value is 70): 3%;
And the maximum Giseeler fluidity of mixed coal is controlled to be 600～1400ddpm, and volatile matter is controlled to be 24～27%.
According to the method coal blending, 17.16～17.67 ten thousand tons/2 of gained coke CSR 〉=66%, 7.63 meter coke oven coke day output, coking chamber empty the burning 4～5 hours that do not need not coaling after coke pushing alleviated the operator except the graphite workload and protected coke oven top furnace wall.
Embodiment 3
A kind of coke making and coal blending method of coking chamber coke oven with width comprises the step that each single kind coking coal is mixed, and described each single weight percent of planting coking coal is: lean coal: 18%; Rich coal 1#:12%; 1/3 coking coal: 20%; Coking coal 1#:18%; Coking coal 2#:11%; Coking coal 3#:8%; Rich coal 2#:7%; Bottle coal (volatile matter V
dafBe 31%, the adhesive index value is 75): 6%;
And the maximum Giseeler fluidity of mixed coal is controlled to be 600～1400ddpm, volatilize to be divided into to be controlled to be 24～27%.
According to the method coal blending, 17.16～17.67 ten thousand tons/2 of gained coke CSR 〉=66%, 7.63 meter coke oven coke day output, coking chamber empty the burning 4～5 hours that do not need not coaling after coke pushing alleviated the operator except the graphite workload and protected coke oven top furnace wall.
Claims (5)
1. the coke making and coal blending method of a coking chamber coke oven with width, comprise the step that each single kind coking coal is mixed, it is characterized in that: described each single coking coal of planting comprises lean coal, meager lean coal, rich coal 1#, rich coal 2#, 1/3 coking coal, gas-fat coal, coking coal 1#, coking coal 2#, coking coal 3#;
Each single weight percent of planting coking coal is: lean coal and meager lean coal: 16～25%; Rich coal 1#:10～20%, 1/3 coking coal: 17～29%; Coking coal 1#:15～20%, coking coal 2#:6～20%, coking coal 3#:5～10%; Gas-fat coal and rich coal 2#:6～10%; Surplus is other volatile matter V arbitrarily
daf≤ 35% utilized coking coal;
And mixed coal: maximum Giseeler fluidity is 600～1400ddpm, and volatilization is divided into 24～27%;
The volatile matter V of described lean coal and meager lean coal
dafBe 10.0～20.0%, adhesive index 〉=10;
The volatile matter V of described coking coal 1#
dafBe 20.0～28.0%, adhesive index 〉=84, maximum thickness of plastic layer Y 〉=16mm, maximum Giseeler fluidity lgMF 〉=2.8, Gu-softening temperature is interval 〉=and 84 ℃;
The volatile matter V of described coking coal 2#
dafBe 20.0～28.0%, adhesive index is 80～84, maximum thickness of plastic layer Y 〉=14mm, and coking coarse grain pattern structure ratio is 46～54%;
The volatile matter V of described coking coal 3#
dafBe 20.0～28.0%, adhesive index is 70～80;
The volatile matter V of described rich coal 1#
dafBe 28.0～33.0%, adhesive index〉90, maximum thickness of plastic layer Y〉25.0mm, maximum Giseeler fluidity lgMF 〉=4.3, Gu-softening temperature is interval〉100 ℃;
The volatile matter V of described rich coal 2#
dafBe 33.0～37.0%, adhesive index〉90, maximum thickness of plastic layer Y〉25.0mm, maximum Giseeler fluidity lgMF 〉=4.6, Gu-softening temperature is interval〉100 ℃;
The volatile matter V of described 1/3 coking coal
dafBe 28.0～34.0%, adhesive index 〉=85, maximum thickness of plastic layer Y is 16～22mm, maximum Giseeler fluidity lgMF 〉=3.0, Gu-softening temperature is interval〉80 ℃;
The volatile matter V of described gas-fat coal
dafFor 37.0%, adhesive index〉90, maximum thickness of plastic layer Y〉25.0mm, maximum Giseeler fluidity lgMF 〉=4.8, Gu-softening temperature is interval〉95 ℃.
2. the coke making and coal blending method of coking chamber coke oven with width according to claim 1, it is characterized in that: the maximum Giseeler fluidity of described mixed coal is 1000～1200ddpm.
3. the coke making and coal blending method of coking chamber coke oven with width according to claim 1 and 2 is characterized in that: described each single weight percent of planting coking coal is: lean coal and meager lean coal: 18～21%; Rich coal 1#:12～18%; 1/3 coking coal: 20～25%; Gas-fat coal and rich coal 2#:6～8%; Coking coal 1#:16～20%; Coking coal 2#:8～15%; Coking coal 3#:6～8%; Surplus is other volatile matter V arbitrarily
daf≤ 35% utilized coking coal.
4. the coke making and coal blending method of coking chamber coke oven with width according to claim 1 and 2 is characterized in that: described each single weight percent of planting coking coal is: lean coal and meager lean coal: 18～21%; Rich coal 1#:12～16%; 1/3 coking coal: 20～24%; Gas-fat coal and rich coal 2#:6～7%; Coking coal 1#:17～20%; Coking coal 2#:8～11%; Coking coal 3#:6～8%; Surplus is other volatile matter V arbitrarily
daf≤ 35% utilized coking coal.
5. the coke making and coal blending method of coking chamber coke oven with width according to claim 3 is characterized in that: described each single weight percent of planting coking coal is: lean coal and meager lean coal: 18～21%; Rich coal 1#:12～16%; 1/3 coking coal: 20～24%; Gas-fat coal and rich coal 2#:6～7%; Coking coal 1#:17～20%; Coking coal 2#:8～11%; Coking coal 3#:6～8%; Surplus is other volatile matter V arbitrarily
daf≤ 35% utilized coking coal.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104804755A (en) * | 2015-05-14 | 2015-07-29 | 武汉钢铁(集团)公司 | Coal blending method for coking 1/3 coking coal having solid softening temperature interval below 85 DEG C |
| CN105219412A (en) * | 2014-06-24 | 2016-01-06 | 上海梅山钢铁股份有限公司 | A kind of coke of adapted Australian coking coal and coking process |
| CN107236565A (en) * | 2017-07-30 | 2017-10-10 | 湖南华菱湘潭钢铁有限公司 | Small coke oven test blending method |
| CN109022012A (en) * | 2018-07-31 | 2018-12-18 | 山西阳光焦化集团股份有限公司 | A kind of tamping coking coal of low volatile |
| CN111575032A (en) * | 2020-04-15 | 2020-08-25 | 山西太钢不锈钢股份有限公司 | Method for increasing coke oven gas yield |
| CN112521963A (en) * | 2020-11-23 | 2021-03-19 | 武汉钢铁有限公司 | Method for adjusting heating system of coke oven for coking coal with low coalification degree and strong caking property by participating in coal blending |
| CN113969178A (en) * | 2020-07-23 | 2022-01-25 | 上海梅山钢铁股份有限公司 | High-strength coke and coking method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081989A (en) * | 2007-06-29 | 2007-12-05 | 武汉钢铁(集团)公司 | Coal coking blending method |
| CN101619224A (en) * | 2009-07-31 | 2010-01-06 | 武汉钢铁(集团)公司 | Coal blending method for coking chamber coke oven with width of 7.63 meters |
| CN101624527A (en) * | 2009-08-04 | 2010-01-13 | 武汉钢铁(集团)公司 | Coal blending method of 7.63m coke oven during starting work |
| CN101701159A (en) * | 2009-11-03 | 2010-05-05 | 武汉钢铁(集团)公司 | Coking and coal blending method that poor and lean coal participates in |
| CN102888236A (en) * | 2012-10-15 | 2013-01-23 | 武汉钢铁(集团)公司 | Method for regulating rheological property of blend coal |
-
2013
- 2013-04-01 CN CN201310112033.0A patent/CN103146407B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081989A (en) * | 2007-06-29 | 2007-12-05 | 武汉钢铁(集团)公司 | Coal coking blending method |
| CN101619224A (en) * | 2009-07-31 | 2010-01-06 | 武汉钢铁(集团)公司 | Coal blending method for coking chamber coke oven with width of 7.63 meters |
| CN101624527A (en) * | 2009-08-04 | 2010-01-13 | 武汉钢铁(集团)公司 | Coal blending method of 7.63m coke oven during starting work |
| CN101701159A (en) * | 2009-11-03 | 2010-05-05 | 武汉钢铁(集团)公司 | Coking and coal blending method that poor and lean coal participates in |
| CN102888236A (en) * | 2012-10-15 | 2013-01-23 | 武汉钢铁(集团)公司 | Method for regulating rheological property of blend coal |
Non-Patent Citations (1)
| Title |
|---|
| 申明新: "《中国炼焦煤的资源与利用》", 31 January 2007, article "煤的分类" * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219412A (en) * | 2014-06-24 | 2016-01-06 | 上海梅山钢铁股份有限公司 | A kind of coke of adapted Australian coking coal and coking process |
| CN104804755A (en) * | 2015-05-14 | 2015-07-29 | 武汉钢铁(集团)公司 | Coal blending method for coking 1/3 coking coal having solid softening temperature interval below 85 DEG C |
| CN104804755B (en) * | 2015-05-14 | 2017-01-25 | 武汉钢铁(集团)公司 | Coal blending method for coking 1/3 coking coal having solid softening temperature interval below 85 DEG C |
| CN107236565A (en) * | 2017-07-30 | 2017-10-10 | 湖南华菱湘潭钢铁有限公司 | Small coke oven test blending method |
| CN109022012A (en) * | 2018-07-31 | 2018-12-18 | 山西阳光焦化集团股份有限公司 | A kind of tamping coking coal of low volatile |
| CN111575032A (en) * | 2020-04-15 | 2020-08-25 | 山西太钢不锈钢股份有限公司 | Method for increasing coke oven gas yield |
| CN113969178A (en) * | 2020-07-23 | 2022-01-25 | 上海梅山钢铁股份有限公司 | High-strength coke and coking method |
| CN112521963A (en) * | 2020-11-23 | 2021-03-19 | 武汉钢铁有限公司 | Method for adjusting heating system of coke oven for coking coal with low coalification degree and strong caking property by participating in coal blending |
| CN112521963B (en) * | 2020-11-23 | 2021-09-14 | 武汉钢铁有限公司 | Method for adjusting heating system of coke oven for coking coal with low coalification degree and strong caking property by participating in coal blending |
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