CN108219807A - Preparation method of biomass iron coke for blast furnace - Google Patents
Preparation method of biomass iron coke for blast furnace Download PDFInfo
- Publication number
- CN108219807A CN108219807A CN201611142370.4A CN201611142370A CN108219807A CN 108219807 A CN108219807 A CN 108219807A CN 201611142370 A CN201611142370 A CN 201611142370A CN 108219807 A CN108219807 A CN 108219807A
- Authority
- CN
- China
- Prior art keywords
- biomass
- coke
- coal
- iron
- blast furnace
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 239000000571 coke Substances 0.000 title claims abstract description 71
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 57
- 239000002028 Biomass Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000003245 coal Substances 0.000 claims abstract description 72
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 238000005245 sintering Methods 0.000 claims abstract description 4
- 238000004939 coking Methods 0.000 claims description 40
- 239000002817 coal dust Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 13
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 9
- 239000004484 Briquette Substances 0.000 claims description 8
- 238000010000 carbonizing Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 238000003763 carbonization Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 12
- 229910052799 carbon Inorganic materials 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000008188 pellet Substances 0.000 abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 abstract description 7
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 6
- 230000009257 reactivity Effects 0.000 abstract description 6
- 239000011593 sulfur Substances 0.000 abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 3
- 230000035699 permeability Effects 0.000 abstract description 3
- 239000011574 phosphorus Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000004044 response Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 239000002131 composite material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 238000005453 pelletization Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 235000017060 Arachis glabrata Nutrition 0.000 description 2
- 241001553178 Arachis glabrata Species 0.000 description 2
- 235000010777 Arachis hypogaea Nutrition 0.000 description 2
- 235000018262 Arachis monticola Nutrition 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 235000020232 peanut Nutrition 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- -1 it is after crushing Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/08—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form in the form of briquettes, lumps and the like
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
- C10B57/06—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing additives
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Abstract
The invention discloses a preparation method of biomass iron coke for a blast furnace, which has the characteristics of high reactivity and high strength, has a certain protection effect on the original large coke, simultaneously keeps the air permeability of the blast furnace, and can reduce CO2The discharge amount can ensure the production of the blast furnace; the iron coke prepared by the invention consumes energyLow cost and low investment; the biomass coke is used as a main raw material, has large storage capacity, can be updated, can realize reasonable utilization of resources, has low production cost, and solves the problem of large dependence of the iron-making industry on fossil energy; the carbon-containing pellets produced by the method can recover dust such as converter dust, blast furnace gas ash, sintering machine dust and the like in steel plants, and reduce the production cost. The composition of the biomass is superior to that of coal powder, clean production can be realized, energy conservation and emission reduction can be realized, and low-sulfur and phosphorus final products can be obtained.
Description
Technical field
The invention belongs to metallurgical technology fields, and in particular to a kind of preparation method of blast furnace biomass iron coke.
Background technology
Biomass energy is a kind of reproducible green carbon source, has widely distributed, cheap and easy to get, resourceful, neutral carbon
The advantages that, there is great economy, environment-friendly advantage and social benefit compared with traditional coal dust energy.Biomass has harmful member
Cellulose content is low, pyrolysis temperature is low and the good characteristics such as high response, is suitable for use as the exothermic mixture or reducing agent of iron-smelting process, can be with
Play the role of for coal generation coke and energy-saving and emission-reduction.If it is rationally applied to ironmaking processes, the technology that steel is surely brought to produce
Innovation and cost optimization.
Iron coke is a kind of high response coke, it is after crushing, mix in advance by coal and iron ore, being molded, to use gas retort
Heating, makes wherein iron ore partial reduction, becomes the reduced iron with certain degree of metalization, while make coal coking therein.With
The progress of Modern Ironmaking Process, iron coke technology is one of modern blast furnace Ironmaking Technology Development Based direction.Iron coke has high response
The characteristics of, iron coke, which is distributed into after blast furnace, can reduce blast furnace heat accumulation band, so as to reduce blast furnace fuel ratio and CO2Discharge capacity, again
The usage rate of weak caking coal and poor value can be increased substantially.
Chinese Patent Application No. 200910305555.6 (a kind of iron coke for blast furnaces and preparation and application) the invention discloses
A kind of iron coke for blast furnaces and preparation and application, efficient utilize for cheap iron powder opened up a new way.Cold moudling-low-temperature concretion
The method that method prepares iron coke is in the binding agent to iron-bearing material and coke powder of addition 8~10%, after mixing in 300~800kg/
cm2Pressure under cold moudling obtain wet piece of ellipse, it is dry at 300~600 DEG C to can obtain iron coke.The patent can compare greatly
Example without high-temperature process, will not cause secondary pollution, while pellet strength is high, the heat punching being able to take in blast furnace using coke powder
It hits and squeezes.
Chinese Patent Application No. 201210408536.8 (a kind of high-strength iron coke composite pellet of high response and its preparation side
Method) disclose a kind of high-strength iron coke composite pellet of high response.It is that have heterogeneity and differential responses by internal layer and outer layer
Property coke composition, internal layer is weak caking coal or the neutral coal dust of binding coal and coke deactivator coking according to a certain percentage
It forms, outer layer is that the coking according to a certain percentage of heavy caking coal and iron compound is formed containing certain metallic iron and iron oxidation
The carbon coke complex of object.The present invention not only increases iron coke composite pellet mechanical strength and reactivity, but also also improves iron coke and answer
The post reaction strength of pelletizing is closed, has saved coking coal resource, while also maintain the gas permeability of blast furnace.
A kind of Chinese Patent Application No. 201310398266.1 (composite pellet of slag iron containing tar and its production method) this hair
It is bright to disclose a kind of composite pellet of iron coke containing tar slag and its production method, iron-bearing material and coal dust are produced into iron with addition of tar slag
Burnt composite pellet, wherein iron-bearing material 10%~40%, coal dust 60%~90%, tar slag addition are iron-bearing material and coal dust
The sum of 5%~20%.Above-mentioned raw materials are put into proportion after being mixed in intensive mixer and are sent into pressure ball in two pairs of rollers ball press.Again
Pelletizing is sent to coking in coking furnace, obtains high high intensity pelletizing.The present invention is answered using the high intensity iron coke of tar slag production
Closing pelletizing, not only metallurgical performance is good, but also makes full use of the pollution waste residue of coke-oven plant, environmental protection.
Above-mentioned prior art deficiency is, for produce the coal dust of iron coke be using a certain amount of heavy caking coal with addition of
Weak caking coal, and containing certain S and P in coal, S and P are the harmful elements of the pig iron, it reduces iron quality.To overcome
The characteristics of Shortcomings in above-mentioned patent and document, the present invention utilizes low biomass char harmful element content, high response, by iron
Rear destructive distillation after miberal powder, coking coal and biomass mixing are fiddled with, is made high response biomass iron coke.Not only reduce the S in iron coke
It is compound with P, while recycled cheap and easy to get, resourceful biomass energy.
Invention content
It is low that the technical problems to be solved by the invention are to provide a kind of amount containing S and P, the few biomass iron of CO2 emission
Burnt preparation method.It is larger to solve the fossil energy consumptions amounts such as the coal of blast furnace iron-making process, CO2、SO2、NOxEtc. discharge capacitys compared with
Greatly, the problems such as product sulfur content is higher.
The present invention seeks to what is realized by following technical solution：
Biomass energy is a kind of reproducible green carbon source, has widely distributed, cheap and easy to get, resourceful, neutral carbon
The advantages that, there is great economy, environment-friendly advantage and social benefit compared with traditional coal dust energy.Biomass has harmful member
Cellulose content is low, pyrolysis temperature is low and the good characteristics such as high response, is suitable for use as the exothermic mixture or reducing agent of iron-smelting process, can be with
Play the role of for coal generation coke and energy-saving and emission-reduction.If it is rationally applied to ironmaking processes, the technology that steel is surely brought to produce
Innovation and cost optimization.
The preparation method of a kind of blast furnace biomass iron coke, it is characterised in that include the following steps：
1. prepared by biomass char：Air dried biomass is packed into retort, the anaerobic under the conditions of 350~800 DEG C
Be carbonized 20~60min, removes its most of volatile, biomass char is obtained after cooling；
2. dispensing：Levigate coal dust, biomass char, ferrous material are mixed respectively, wherein biomass by mass percentage
The ferrous material of coke 5%~20%, coal dust 80%~95%, another plus biomass char and coal dust gross mass 5%~10%；
3. it makes firm by ramming：Mixture is sent into tamping tool and is made firm by ramming, it is 1.05~1.20t/m to make firm by ramming to heap density3；
4. coking：Briquette after making firm by ramming, which is sent into carbonizing chamber of coke oven, carries out coking, when briquette central temperature is heated to 900
4~6 hours are kept after~1100 DEG C；
5. it discharges：Discharge of the coke after charge of coke heat preservation, using wet quenching, obtain CRI be 30%~50%, CSR be 50%~
60% iron coke；
Maximum thickness of colloidal matter layer y values are between 12~35mm in the coal dust, and adhesive index value is between 60~100；
The coal dust and biomass granularity is respectively less than 3mm, and ferrous material granularity is less than 1mm；
The biomass is industrial or agricultural residue, such as stalk, waste wood, peanut shell, straw is one or more；
The ferrous material is included in Iron Ore Powder, sintering dust separation ash, ironmaking dedusting ash, steel-making dedusting ash, rolling process
It is one or more in the iron scale or red mud of generation；
The coal dust has one or more in the coal dust of caking property for coking coal, 1/3 coking coal, bottle coal, rich coal etc..
Compared with prior art, the beneficial effects of the invention are as follows：1) binding agent and not compound stalk forming are not being added,
In producing high response and high intensity life in coke oven by the way of tamping coking after mixed coal is uniformly mixed with ferrous material
Substance iron coke, the iron coke have the feature of high response and high intensity, have certain protective effect to original bulk coke, simultaneously
Blast furnace permeability is maintained, CO can be reduced2Discharge capacity can guarantee blast fumance again；2) compared with prior art, the invention system
Standby iron coke energy consumption is low, and investment is small；3) using biomass char as primary raw material, biomass char storage capacity is big, may be updated, it can be achieved that money
Source rationally utilizes, and production cost is low, while it is big to solve the problems, such as that Iron industry relies on fossil energy；4) this method production contains
Carbon pellets can recycle steel plant's converter dirt, and the dust such as blast furnace dust and sintering machine head end ash reduce production cost.5) biomass
It is better than coal dust (low ash content, low-sulfur and phosphorus), it can be achieved that clean manufacturing, realizes energy-saving and emission-reduction (emission reduction CO into being grouped as2、SO2、
NOX), and obtain high quality (low-sulfur and phosphorus) final products.
Specific embodiment
It is illustrated with reference to specific embodiment：
Embodiment 1
Dried waste wood is carbonized after 30min in 400 DEG C of retorts obtain biomass char (fixed carbon content >=
80%th, Hui Fa Fen≤15, % Hui Fen≤2%, Liu Han Liang≤0.1%), the levigate biomass char to below 3mm and coking coal are pressed
1：9 ratio mixing, index such as table 1 shows used in coking coal G values used in this example and Y value, another coal powder and biomass gross mass 5%
And granularity is less than the Iron Ore Powder of 1mm.
1 coking coal index of table
| Coal | G | Y/mm |
| Coking coal | 77.8 | 18 |
Ingredients are mixed, then mixture is sent into tamping tool and is made firm by ramming, it is 1.05t/ to make firm by ramming to heap density
m3, the briquette after making firm by ramming, which is sent into carbonizing chamber of coke oven, carries out coking, after mixture central temperature is heated to 900~1100 DEG C
It discharges of the coke after being kept for 4 hours, using wet quenching, iron coke is obtained after cooling is broken.
Performance detection：Wear-resistant strength M10 is 12.8%, crushing strength M40 is 75.2%, coke reactivity CRI is
35.6%th, post reaction strength of coke CSR is 56.5%.
Embodiment 2
Dried peanut shell is carbonized after 25min in 500 DEG C of retorts obtain biomass char (fixed carbon content >=
80%th, Hui Fa Fen≤15, % Hui Fen≤2%, Liu Han Liang≤0.1%), by the levigate biomass char to below 3mm and coking coal, fertilizer
Coal and bottle coal press 1：4：2：2 ratio mixing, coking coal used in this example, index such as table 2 used in rich coal and bottle coal G values and Y value show,
Another coal powder and biomass gross mass 6% and granularity are less than the Iron Ore Powder and blast furnace dedusting ash of 1mm.
2 coking coal of table, rich coal and bottle coal index
| Coal | G | Y/mm |
| Coking coal | 77.8 | 18 |
| Rich coal | 92 | 27 |
| Bottle coal | 79.5 | 14 |
Ingredients are mixed, then mixture is sent into tamping tool and is made firm by ramming, it is 1.06t/ to make firm by ramming to heap density
m3, the briquette after making firm by ramming, which is sent into carbonizing chamber of coke oven, carries out coking, after mixture central temperature is heated to 900~1100 DEG C
It discharges of the coke after being kept for 5 hours, using wet quenching, iron coke is obtained after cooling is broken.
Performance detection：Wear-resistant strength M10 is 10.9%, crushing strength M40 is 73.2%, coke reactivity CRI is
29.5%th, post reaction strength of coke CSR is 53.6%.
Embodiment 3
Dried straw is carbonized after 20min in 600 DEG C of retorts obtain biomass char (fixed carbon content >=
80%th, Hui Fa Fen≤15, % Hui Fen≤2%, Liu Han Liang≤0.1%), by the levigate biomass char to below 3mm and coking coal, fertilizer
Coal, bottle coal and 1/3 coking coal press 2：2：1：1：1 ratio mixing, coking coal, rich coal bottle coal and 1/3 coking coal G values and Y used in this example
Such as table 3 of index used in value shows that another coal powder and biomass gross mass 8 and granularity are less than red mud, converter dirt and the blast furnace ash of 1mm.
3 coking coal of table, rich coal, bottle coal and 1/3 coking coal index
| Coal | G | Y |
| Coking coal | 77.8 | 18 |
| Rich coal | 92 | 27 |
| 1/3 is burnt | 93.6 | 17 |
| Bottle coal | 79.5 | 14 |
Ingredients are mixed, then mixture is sent into tamping tool and is made firm by ramming, it is 1.08t/ to make firm by ramming to heap density
m3, the briquette after making firm by ramming, which is sent into carbonizing chamber of coke oven, carries out coking, after mixture central temperature is heated to 900~1100 DEG C
It discharges of the coke after being kept for 4 hours, using wet quenching, iron coke is obtained after cooling is broken.
Performance detection：Wear-resistant strength M10 is 13.2%, crushing strength M40 is 72.2%, coke reactivity CRI is
33.6%th, post reaction strength of coke CSR is 53.8%.
Embodiment 4
Dried stalk and waste wood are carbonized after 20min in 600 DEG C of retorts and obtains biomass char (fixed carbon contains
Amount >=80%, Hui Fa Fen≤15, % Hui Fen≤2%, Liu Han Liang≤0.1%), by the levigate biomass char to below 3mm and coke
Coal and 1/3 coking coal press 1：4：5 ratio mixing, index such as table 3 shows used in coking coal used in this example and 1/3 coking coal G values and Y value,
Another coal powder and biomass gross mass 10% and granularity are less than Iron Ore Powder, red mud, converter dirt and the blast furnace ash of 1mm.
3 coking coal of table, rich coal, bottle coal and 1/3 coking coal index
| Coal | G | Y |
| Coking coal | 77.8 | 18 |
| 1/3 is burnt | 93.6 | 17 |
Ingredients are mixed, then mixture is sent into tamping tool and is made firm by ramming, it is 1.20t/ to make firm by ramming to heap density
m3, the briquette after making firm by ramming, which is sent into carbonizing chamber of coke oven, carries out coking, after mixture central temperature is heated to 900~1100 DEG C
It discharges of the coke after being kept for 4 hours, using wet quenching, iron coke is obtained after cooling is broken.
Performance detection：Wear-resistant strength M10 is 15.2%, crushing strength M40 is 70.2%, coke reactivity CRI is
40.6%th, post reaction strength of coke CSR is 47.8%.
Claims (4)
1. a kind of blast furnace preparation method of biomass iron coke, it is characterised in that include the following steps：
1. prepared by biomass char：Air dried biomass is packed into retort, the anaerobic carbonization under the conditions of 350~800 DEG C
20~60min removes its most of volatile, biomass char is obtained after cooling；
2. dispensing：Levigate coal dust, biomass char, ferrous material are mixed respectively, wherein biomass char 5% by mass percentage
~20%, coal dust 80%~95%, the another ferrous material for adding biomass char and coal dust gross mass 5%~10%；
3. it makes firm by ramming：Mixture is sent into tamping tool and is made firm by ramming, it is 1.05~1.20t/m to make firm by ramming to heap density3；
4. coking：Briquette after making firm by ramming is sent into carbonizing chamber of coke oven and carries out coking, when briquette central temperature is heated to 900~
4~6 hours are kept after 1100 DEG C；
5. it discharges：It discharges of the coke after charge of coke heat preservation, using wet quenching, it is 50%~60% that obtain CRI, which be 30%~50%, CSR,
Blast furnace biomass iron coke；
Maximum thickness of colloidal matter layer y values are between 12~35mm in the coal dust, and adhesive index value is between 60~100；
The coal dust and biomass granularity is respectively less than 3mm, and ferrous material granularity is less than 1mm.
2. the blast furnace according to claim 1 preparation method of biomass iron coke, it is characterised in that：The biomass is
Industrial or agricultural residue.
3. the blast furnace according to claim 1 preparation method of biomass iron coke, it is characterised in that：The ferrous material
Including Iron Ore Powder, sintering dust separation ash, ironmaking dedusting ash, make steel in the iron scale or red mud that are generated in dedusting ash, rolling process
It is one or more.
4. the blast furnace according to claim 1 preparation method of biomass iron coke, it is characterised in that：The coal dust is coke
It is one or more in coal, 1/3 coking coal, bottle coal, rich coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611142370.4A CN108219807A (en) | 2016-12-13 | 2016-12-13 | Preparation method of biomass iron coke for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611142370.4A CN108219807A (en) | 2016-12-13 | 2016-12-13 | Preparation method of biomass iron coke for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108219807A true CN108219807A (en) | 2018-06-29 |
Family
ID=62638126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611142370.4A Pending CN108219807A (en) | 2016-12-13 | 2016-12-13 | Preparation method of biomass iron coke for blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108219807A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110272045A (en) * | 2019-07-20 | 2019-09-24 | 武钢集团昆明钢铁股份有限公司 | A kind of high activity coke and preparation method thereof |
| CN110387445A (en) * | 2019-08-16 | 2019-10-29 | 东北大学 | A method of use lignin to produce direct reduced iron for reducing agent |
| CN110699099A (en) * | 2019-09-30 | 2020-01-17 | 鞍钢股份有限公司 | Method for preparing high-strength coke for iron making by using chemical wastes |
| CN111426800A (en) * | 2020-04-30 | 2020-07-17 | 鞍钢股份有限公司 | Method for evaluating uniformity of mixed materials |
| CN111470506A (en) * | 2020-05-29 | 2020-07-31 | 鞍钢股份有限公司 | Preparation method of porous carbon material |
| CN111850196A (en) * | 2020-07-07 | 2020-10-30 | 鞍钢股份有限公司 | Composite carbon-containing block for blast furnace smelting and production and use methods thereof |
| CN112981093A (en) * | 2021-02-09 | 2021-06-18 | 鞍钢股份有限公司 | Magnesium melt type iron coke composite pellet and hot-pressing manufacturing method thereof |
| CN113416567A (en) * | 2021-07-08 | 2021-09-21 | 山西沁新能源集团股份有限公司 | Preparation method of iron coke and iron coke |
| CN113969328A (en) * | 2020-07-23 | 2022-01-25 | 宝山钢铁股份有限公司 | Carbon-iron composite furnace charge and preparation method thereof |
| CN115181597A (en) * | 2022-06-30 | 2022-10-14 | 武汉钢铁有限公司 | Biomass fuel, preparation method thereof and application thereof in iron ore sintering |
| CN115786716A (en) * | 2022-11-28 | 2023-03-14 | 武汉钢铁有限公司 | Method for utilizing steelmaking secondary dedusting ash in rotary hearth furnace |
| US20230416629A1 (en) * | 2020-05-03 | 2023-12-28 | Suncoke Technology And Development Llc | High-quality coke products |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775301A (en) * | 2010-02-22 | 2010-07-14 | 肖国雄 | Biomass coke and preparation method thereof |
| CN103468289A (en) * | 2013-09-27 | 2013-12-25 | 武汉科技大学 | Iron coke for blast furnace and preparing method thereof |
| CN105238421A (en) * | 2015-10-21 | 2016-01-13 | 云南煤业能源股份有限公司 | Tamping coking method with biomass mixed |
-
2016
- 2016-12-13 CN CN201611142370.4A patent/CN108219807A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775301A (en) * | 2010-02-22 | 2010-07-14 | 肖国雄 | Biomass coke and preparation method thereof |
| CN103468289A (en) * | 2013-09-27 | 2013-12-25 | 武汉科技大学 | Iron coke for blast furnace and preparing method thereof |
| CN105238421A (en) * | 2015-10-21 | 2016-01-13 | 云南煤业能源股份有限公司 | Tamping coking method with biomass mixed |
Non-Patent Citations (2)
| Title |
|---|
| 中国第一汽车集团公司编写组编写: "《机械工程材料手册非金属材料》", 31 October 1999, 机械工程出版社 * |
| 张建良等编著: "《非高炉炼铁》", 31 March 2015 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110272045B (en) * | 2019-07-20 | 2022-07-12 | 武钢集团昆明钢铁股份有限公司 | High-activity coke and preparation method thereof |
| CN110272045A (en) * | 2019-07-20 | 2019-09-24 | 武钢集团昆明钢铁股份有限公司 | A kind of high activity coke and preparation method thereof |
| CN110387445A (en) * | 2019-08-16 | 2019-10-29 | 东北大学 | A method of use lignin to produce direct reduced iron for reducing agent |
| CN110699099A (en) * | 2019-09-30 | 2020-01-17 | 鞍钢股份有限公司 | Method for preparing high-strength coke for iron making by using chemical wastes |
| CN111426800A (en) * | 2020-04-30 | 2020-07-17 | 鞍钢股份有限公司 | Method for evaluating uniformity of mixed materials |
| US20230416629A1 (en) * | 2020-05-03 | 2023-12-28 | Suncoke Technology And Development Llc | High-quality coke products |
| CN111470506A (en) * | 2020-05-29 | 2020-07-31 | 鞍钢股份有限公司 | Preparation method of porous carbon material |
| CN111850196A (en) * | 2020-07-07 | 2020-10-30 | 鞍钢股份有限公司 | Composite carbon-containing block for blast furnace smelting and production and use methods thereof |
| CN113969328A (en) * | 2020-07-23 | 2022-01-25 | 宝山钢铁股份有限公司 | Carbon-iron composite furnace charge and preparation method thereof |
| CN112981093A (en) * | 2021-02-09 | 2021-06-18 | 鞍钢股份有限公司 | Magnesium melt type iron coke composite pellet and hot-pressing manufacturing method thereof |
| CN113416567A (en) * | 2021-07-08 | 2021-09-21 | 山西沁新能源集团股份有限公司 | Preparation method of iron coke and iron coke |
| CN115181597A (en) * | 2022-06-30 | 2022-10-14 | 武汉钢铁有限公司 | Biomass fuel, preparation method thereof and application thereof in iron ore sintering |
| CN115786716A (en) * | 2022-11-28 | 2023-03-14 | 武汉钢铁有限公司 | Method for utilizing steelmaking secondary dedusting ash in rotary hearth furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108219807A (en) | Preparation method of biomass iron coke for blast furnace | |
| CN102586529B (en) | Rotary hearth furnace iron-making method utilizing biomass carbon-containing pellet to serve as raw material | |
| CN101597662B (en) | Method for producing direct reduced iron | |
| CN104119939B (en) | A kind of ironmaking hot pressing iron coke and preparation method thereof | |
| CN104087328B (en) | Improve the coking by coke oven method of chemical industry Jiao by long-flame coal proportioning | |
| CN101525689B (en) | Method for preparing carbonaceous autoreduction cold pressing block and application thereof | |
| CN110093467B (en) | Preparation method of iron coke | |
| CN115354150B (en) | Biomass carbon-containing pellet for blast furnace ironmaking and preparation method thereof | |
| CN103803552A (en) | Preparation method of industrial silicon smelting reducer | |
| CN111607445A (en) | Semi-coke powder compression molding method | |
| CN112980481A (en) | Method for preparing high-reactivity coke from steel slag | |
| JP7526379B2 (en) | Iron-titanium composite coke for low carbon steelmaking and its manufacturing method | |
| CN106520246A (en) | Method for applying biomass briquettes to coal blending for coking | |
| CN111996024B (en) | Method for preparing high-reactivity coke by compounding metallurgical dust and high-sulfur coal and cooperatively removing zinc and sulfur | |
| CN211651175U (en) | Shaft furnace for semi-coke modification | |
| CN112980483A (en) | Method for preparing high-reactivity coke by cold pressing of steel slag | |
| CN217479382U (en) | Substitute product of coke for metallurgical shaft furnace | |
| CN115058551B (en) | Method for enriching blast furnace gas | |
| CN115612760B (en) | Low-ash high-strength iron coke and preparation method thereof | |
| CN111663035A (en) | Use method of composite carbon block for sintering | |
| CN117107056A (en) | Biomass iron-carbon composite furnace burden for blast furnace smelting and preparation method thereof | |
| CN101982531A (en) | Briquette and method for producing coal gases by using briquette | |
| CN104745211A (en) | Coke for gasification and preparation method thereof | |
| CN115612761B (en) | Low-ash high-strength iron coke and preparation method thereof | |
| Cengizler et al. | Formcoke production from char fines of hard brown coals by air curing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |