CN108754131A - A kind of sintering production method of optimization fuel collocation - Google Patents
A kind of sintering production method of optimization fuel collocation Download PDFInfo
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- CN108754131A CN108754131A CN201810610777.8A CN201810610777A CN108754131A CN 108754131 A CN108754131 A CN 108754131A CN 201810610777 A CN201810610777 A CN 201810610777A CN 108754131 A CN108754131 A CN 108754131A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
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Abstract
The present invention relates to a kind of sintering production method of optimization fuel collocation, raw materials for sintering and fuel A are blended grain through a mixing, two and are mixed to form sinter mixture A three times, and as bottom sintering feed；Raw materials for sintering and fuel B are blended grain through a mixing, two and are mixed to form sinter mixture B three times, and as middle level sintering feed；Raw materials for sintering and fuel C are blended grain through a mixing, two and are mixed to form sinter mixture C three times, and as upper layer sintering feed；After three kinds of sinter mixture whole cloth add, igniting exhausting is sintered, and obtains finished product sinter.The present invention passes through layer-by-layer distribution, optimize fuel composition and proportioning in each layer of sinter mixture simultaneously, in sinter mixture fuel with addition of than, realize the purpose for the usage amount for increasing low price fuel, solve the problems, such as sinter bed maximum temperature bed depth direction top is relatively low, lower part is higher simultaneously, sintering solid burnup is effectively reduced, sinter cold strength and high temperature metallurgical properties are improved.
Description
Technical field
The present invention relates to sintering technology field more particularly to a kind of sintering production methods of optimization fuel collocation.
Background technology
Sintering production process is that mixture cloth is added on pallet, is lighted a fire by exhausting, from surface internally from upper
Be sintered under and, violent gas-solid-liquid heterogeneous reaction occur in sintering process, by liquid phase assimilation, Binder Phase formation,
The crystallization of mineral and recrystallization and the transformation of phase transformation and crystal form, finally cooling are condensed into the sintering with different structure feature
Mine.
Conventional sintering distributing technique takes the mode that the raw materials for sintering of the compositions such as Iron Ore Powder is unified to cloth after mixing,
Be conducive to process simplification and system equipment composition, but can cause the maximum temperature of sinter bed on bed depth direction
Unstable, i.e., top is relatively low, and lower part is higher so that sinter bed top heat relative deficiency, material layer temperature is relatively low, leads to the bed of material
The sinter mixture on top is not sufficiently sintered, it is possible that part raw material, and there is " superfusion " in material layer lower part heat surplus, most
The yield and quality of sintering usage factor and finished product sinter is reduced eventually, and the unstability of this temperature is mainly by the storage of the bed of material
Fuel factor causes.
The temperature and heat that sinter bed is directly affected with dosage, granularmetric composition and ignition quality of fuel in sinter mixture
Amount distribution, the thickness of combustion zone and the bed of material various aspects, the type of fuel such as gas permeability, sintering atmosphere fixed with dosage
When, the size of fuel granularity just becomes an important factor for influencing sintering process.With solid fuel existing for coarse particles, by iron
When ore and lime stone adhere to, ignition temperature when sintering can be reduced, its burn rate is accelerated；It is fired with solid existing for fine grained
Material will not then change；And with solid fuel existing for composite particles, especially stick with lime stone together, it is usually anti-
Ying Xinghui is more active.If fuel granularity is excessive, burning velocity is slow, and combustion zone broadens, and sintering maximum temperature reduces, sintering process
Gas permeability is deteriorated, and speed of hanging down and usage factor decline；Conversely, fuel granularity is too small, burning velocity is fast, and liquid phase reactor carries out endless
Entirely, sinter strength is deteriorated, and yield rate and usage factor also decline.
The cost of sintering solid fuel is notable to sinter cost impact, and the fuel cost rationally controlled in sintering circuit is aobvious
It obtains particularly important.Fuel type and structure are adjusted, sintering can be effectively reduced with the lower fuel instead part coke powder of price
Cost.Semicoke is a kind of solid fuel, have sulfur nutrient is low, phosphorus mass fraction is low, fixed carbon is high, calorific capacity is high and
The features such as price is relatively low；In addition, if can also have centainly to reducing sinter cost using semi-coke as sintering alternative fuel
Effect.
Disclose application No. is 201410370565.9 Chinese patent " a method of reducing sintering solid burnup ",
Include the following steps：1) sintering solid fuel is sieved into more than 2.0-3.0mm, 0.5-3.0mm and is less than 0.5-1.0mm tri-
A grade；2) by less than the solid fuel of 0.5-1.0mm grades and iron ore, flux, return mine and the raw materials for sintering such as other dust
Dispensing is carried out, and primary mixer mixing is added；3) solid fuel of above-mentioned mixture and 0.5-3.0mm grades is transported to two
Secondary mixing machine carries out mixing granulation；4) it is input to and mixes three times by obtained mixture and in the solid fuel of 2.0-3.0mm grades
Conjunction machine is transported to sintering machine after mixing and carries out cloth, igniting and sintering.The present invention can reduce larger particles solid fuel
The powder material that surrounding adheres to improves the rate and efficiency of solid fuel ignition, but this method does not solve sintering sintering feed
The problem of heat caused by layer accumulation of heat is unevenly distributed, does not also optimize fuel type and proportioning.
Disclose application No. is the Chinese patent of 201610982185.X " a method of improving sintering fuel efficiency of combustion
And device " comprising following steps：It is equipped with sintering material used in proportioning room, mixed once is carried out to material；To material into
The secondary mixing of row, the mass percent of the water distribution quantity of material is 6.0%~8.0% after secondary mixing, by secondary mixed object
Material, which is laid on sintering machine, forms sintering charge level；The firing temperature for controlling sintering machine is 1000~1200 DEG C；When being equipped with material,
The 40%~80% of fuel gross mass is added in proportioning room in material, by the 20%~60% of fuel gross mass secondary mixed
It is added into material in the last 1min closed.The present invention sintering fuel has been carried out point plus, sintering charge level is sprayed using injector
Steam is spilt, promotes the completely burned of fuel, but the present invention does not solve heat distribution caused by sintering sinter bed accumulation of heat not
, also without the type and proportioning of optimization fuel.
Invention content
The present invention provides a kind of sintering production methods of optimization fuel collocation, by layer-by-layer distribution, while optimizing each
In layer sinter mixture in fuel composition and proportioning and sinter mixture fuel with addition of than realizing and increasing low price fuel
Usage amount purpose, while solving the problems, such as sinter bed maximum temperature bed depth direction top is relatively low, lower part is higher,
Sintering solid burnup is effectively reduced, sinter cold strength and high temperature metallurgical properties are improved.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of sintering production method of optimization fuel collocation, point three layers of cloth on pallet, and in each layer sintering feed
Fuel in fuel type and proportioning, sinter mixture is with addition of than being all different；It is as follows：
(1) raw materials for sintering and fuel A are blended grain through a mixing, two and are mixed to form sinter mixture A three times, fuel A
With addition of mass percent be 3%~4%；The fuel A after anthracite and semi-coke mixing by forming, and wherein anthracite accounts for fuel
The 50%~60% of A gross masses, semi-coke account for the 40%~50% of fuel A gross masses；Match refuelling A gross masses before a mixing
65%~75%, three times mixing before with addition of remaining fuel A；
(2) raw materials for sintering and fuel B are blended grain through a mixing, two and are mixed to form sinter mixture B three times, fuel B
With addition of mass percent be 4%~5%；The fuel B after coke powder and semi-coke mixing by forming, and wherein it is total to account for fuel B for coke powder
The 60%~70% of quality, semi-coke account for the 30%~40% of fuel B gross masses；With refuelling B gross masses before a mixing
55%~65%, with addition of remaining fuel B before mixing three times；
(3) raw materials for sintering and fuel C are blended grain through a mixing, two and are mixed to form sinter mixture C, fuel C three times
With addition of mass percent be 5%~6%；The fuel C is made of coke powder and anthracite, and wherein coke powder accounts for fuel C gross mass
75%~85%, anthracite accounts for the 15%~25% of fuel C gross mass；With addition of fuel C gross mass before a mixing
45%~55%, with addition of remaining fuel C before mixing three times；
(4) sinter mixture A cloth is added on pallet first, as bottom sintering feed, fabric thickness is 200~
250mm；Then sinter mixture B cloth is added on bottom sintering feed, as middle level sintering feed, fabric thickness is 350~
450mm；Finally sinter mixture C cloth is added on the sintering feed of middle level, as upper layer sintering feed, fabric thickness is 250~
300mm；
After (5) three kinds of sinter mixture whole cloth add, igniting exhausting is sintered, and obtains finished product sinter, is lighted a fire
Temperature is 950~1100 DEG C, and suction pressure is 12000~18000Pa.
The granularmetric composition of the coke powder is：Granularity≤0.5mm's accounts for accounting for for 15%~20%, 0.5mm < granularities≤1mm
35%~40%, 1mm < granularities≤3mm's accounts for 40%~45%, and granularity > 3mm's accounts for 5%~10%.
The anthracitic granularmetric composition is：Granularity≤0.5mm's accounts for accounting for for 5%~10%, 0.5mm < granularities≤1mm
15%~20%, 1mm < granularities≤3mm's accounts for 50%~60%, and granularity > 3mm's accounts for 20%~30%.
The granularmetric composition of the semi-coke is：Granularity≤0.5mm's accounts for accounting for for 15%~25%, 0.5mm < granularities≤1mm
25%~30%, 1mm < granularities≤3mm's accounts for 45%~55%, and granularity > 3mm's accounts for 5%~10%.
The moisture of the sinter mixture A is 6%~6.5%, and the moisture of sinter mixture B is 6.5%~7.5%, is burnt
The moisture for tying mixture C is 7.5%~8.5%.
The sinter mixture A, sinter mixture B are identical with the basicity of sinter mixture C, and the basicity be 1.8~
2.2。
The fuel A, fuel B and fuel C uniformly with quick lime premix first, and add with before being added in raw materials for sintering
Atomized water soaks, and wherein fuel A or fuel B or the mass fraction of fuel C are 85%~90%, and the mass fraction of quick lime is
10%~15%.
Compared with prior art, the beneficial effects of the invention are as follows：
1) by layer-by-layer distribution, while fuel composition and proportioning in upper, middle and lower-ranking sinter mixture is separately optimized, burns
Tie fuel in mixture with addition of than and carrying out premixing processing to fuel and quick lime, realizing and increase low price fuel
The purpose of usage amount effectively reduces sinter production cost；
2) long-term existing sinter bed maximum temperature is solved in sinter production process on bed depth direction top
Problem relatively low, lower part is higher improves the yield and quality of sintering usage factor and finished product sinter；
3) sintering solid burnup is effectively reduced, sinter cold strength and high temperature metallurgical properties are improved.
Specific implementation mode
A kind of sintering production method of optimization fuel collocation, point three layers of cloth on pallet, and in each layer sintering feed
Fuel in fuel type and proportioning, sinter mixture is with addition of than being all different；It is as follows：
(1) raw materials for sintering and fuel A are blended grain through a mixing, two and are mixed to form sinter mixture A three times, fuel A
With addition of mass percent be 3%~4%；The fuel A after anthracite and semi-coke mixing by forming, and wherein anthracite accounts for fuel
The 50%~60% of A gross masses, semi-coke account for the 40%~50% of fuel A gross masses；Match refuelling A gross masses before a mixing
65%~75%, three times mixing before with addition of remaining fuel A；
(2) raw materials for sintering and fuel B are blended grain through a mixing, two and are mixed to form sinter mixture B three times, fuel B
With addition of mass percent be 4%~5%；The fuel B after coke powder and semi-coke mixing by forming, and wherein it is total to account for fuel B for coke powder
The 60%~70% of quality, semi-coke account for the 30%~40% of fuel B gross masses；With refuelling B gross masses before a mixing
55%~65%, with addition of remaining fuel B before mixing three times；
(3) raw materials for sintering and fuel C are blended grain through a mixing, two and are mixed to form sinter mixture C, fuel C three times
With addition of mass percent be 5%~6%；The fuel C is made of coke powder and anthracite, and wherein coke powder accounts for fuel C gross mass
75%~85%, anthracite accounts for the 15%~25% of fuel C gross mass；With addition of fuel C gross mass before a mixing
45%~55%, with addition of remaining fuel C before mixing three times；
(4) sinter mixture A cloth is added on pallet first, as bottom sintering feed, fabric thickness is 200~
250mm；Then sinter mixture B cloth is added on bottom sintering feed, as middle level sintering feed, fabric thickness is 350~
450mm；Finally sinter mixture C cloth is added on the sintering feed of middle level, as upper layer sintering feed, fabric thickness is 250~
300mm；
After (5) three kinds of sinter mixture whole cloth add, igniting exhausting is sintered, and obtains finished product sinter, is lighted a fire
Temperature is 950~1100 DEG C, and suction pressure is 12000~18000Pa.
The granularmetric composition of the coke powder is：Granularity≤0.5mm's accounts for accounting for for 15%~20%, 0.5mm < granularities≤1mm
35%~40%, 1mm < granularities≤3mm's accounts for 40%~45%, and granularity > 3mm's accounts for 5%~10%.
The anthracitic granularmetric composition is：Granularity≤0.5mm's accounts for accounting for for 5%~10%, 0.5mm < granularities≤1mm
15%~20%, 1mm < granularities≤3mm's accounts for 50%~60%, and granularity > 3mm's accounts for 20%~30%.
The granularmetric composition of the semi-coke is：Granularity≤0.5mm's accounts for accounting for for 15%~25%, 0.5mm < granularities≤1mm
25%~30%, 1mm < granularities≤3mm's accounts for 45%~55%, and granularity > 3mm's accounts for 5%~10%.
The moisture of the sinter mixture A is 6%~6.5%, and the moisture of sinter mixture B is 6.5%~7.5%, is burnt
The moisture for tying mixture C is 7.5%~8.5%.
The sinter mixture A, sinter mixture B are identical with the basicity of sinter mixture C, and the basicity be 1.8~
2.2。
The fuel A, fuel B and fuel C uniformly with quick lime premix first, and add with before being added in raw materials for sintering
Atomized water soaks, and wherein fuel A or fuel B or the mass fraction of fuel C are 85%~90%, and the mass fraction of quick lime is
10%~15%.
Following embodiment is being implemented down based on the technical solution of the present invention, gives detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to following embodiments.Method therefor is such as without spy in following embodiments
It is conventional method not mentionlet alone bright.
【Embodiment 1】
Raw materials for sintering and fuel A are blended grain through a mixing, two and are mixed to form sinter mixture A three times, and fuel A's matches
It is 3.2% to add mass percent；For the fuel A by being formed after anthracite and semi-coke mixing, anthracite accounts for fuel A gross masses
52%, semi-coke accounts for the 48% of fuel A gross masses；Match the 67% of refuelling A gross masses before a mixing, matches before mixing three times
Add the fuel A of residue 33%；Fuel A is premixed uniformly with addition of preceding elder generation and quick lime, and adds atomized water wetting, the wherein matter of fuel
It is 95% to measure score, and the mass fraction of quick lime is 5%；The moisture of sinter mixture A is 6.2%, basicity 1.95.
Raw materials for sintering and fuel B are blended grain through a mixing, two and are mixed to form sinter mixture B three times, and fuel B's matches
It is 4.2% to add mass percent；For the fuel by being formed after coke powder and semi-coke mixing, coke powder accounts for the 62% of fuel B gross masses, blue
Charcoal accounts for the 38% of fuel B gross masses；Match the 57% of refuelling B gross masses before a mixing, with addition of residue before mixing three times
43% fuel B；Fuel B is premixed uniformly with addition of preceding elder generation and quick lime, and adds atomized water wetting, wherein quality of fuel score
It is 90%, the mass fraction of quick lime is 10%；The moisture of sinter mixture B is 6.8%, basicity 1.95.
Raw materials for sintering and fuel C are blended grain through a mixing, two and are mixed to form sinter mixture C three times, fuel C with addition of
Mass percent is 5.3%；For the fuel C by being formed after coke powder and anthracite mixing, coke powder accounts for the 77% of fuel C gross mass,
Anthracite accounts for the 23% of fuel C gross mass；With addition of the 47% of fuel C gross mass before a mixing, before mixing three times with addition of
The fuel C of residue 53%；Fuel C premixes uniformly with addition of preceding elder generation and quick lime, and adds atomized water wetting, wherein quality of fuel
Score is 85%, and the mass fraction of quick lime is 15%；The moisture of sinter mixture C is 8.2%, basicity 1.95.
Sinter mixture A cloth is added on pallet first, as bottom sintering feed, fabric thickness 215mm；So
Sinter mixture B cloth is added on the bottom sintering feed in pallet afterwards, as middle level sintering feed, fabric thickness is
425mm；Finally sinter mixture C cloth is added on the middle level sintering feed in pallet, as upper layer sintering feed, cloth is thick
Degree is 265mm.After three kinds of sinter mixture whole cloth add, igniting exhausting is sintered, and obtains finished product sinter, igniting temperature
Degree is 980 DEG C, suction pressure 14000Pa.
In the present embodiment, the granularmetric composition of coke powder used is：Granularity≤0.5mm's accounts for 15%, 0.5mm < granularities≤1mm
Account for 40%, 1mm < granularities≤3mm account for 40%, granularity > 3mm's accounts for 5%；Anthracitic granularmetric composition is：Granularity≤
0.5mm account for 8%, 0.5mm < granularities≤1mm account for 17%, 1mm < granularities≤3mm account for 55%, granularity > 3mm's accounts for
20%.The granularmetric composition of semi-coke is：Granularity≤0.5mm account for 20%, 0.5mm < granularities≤1mm account for 25%, 1mm < granularities
≤ 3mm's accounts for 50%, and granularity > 3mm's accounts for 5%.
In the present embodiment, in fuel total accounting of anthracite and semi-coke be 47.4%, successfully realize with etc. low price fuel replace
For high price coke powder, sintering solid burnup is reduced to 34Kg/t；Small sintering ore rate is reduced to 9.2%, and drum strength is increased to
88.2%, reduction sex index is increased to 90%.
【Embodiment 2】
Raw materials for sintering and fuel A are blended grain through a mixing, two and are mixed to form sinter mixture A three times, and fuel A's matches
It is 3.8% to add mass percent；For the fuel A by being formed after anthracite and semi-coke mixing, anthracite accounts for fuel A gross masses
68%, semi-coke accounts for the 32% of fuel A gross masses；Match the 73% of refuelling A gross masses before a mixing, matches before mixing three times
Add the fuel A of residue 27%；Fuel A is premixed uniformly with addition of preceding elder generation and quick lime, and adds atomized water wetting, the wherein matter of fuel
It is 90% to measure score, and the mass fraction of quick lime is 10%；The moisture of sinter mixture A is 6.5%, basicity 2.1.
Raw materials for sintering and fuel B are blended grain through a mixing, two and are mixed to form sinter mixture B three times, and fuel B's matches
It is 4.8% to add mass percent, and wherein fuel B is formed after being mixed by coke powder and semi-coke, and coke powder accounts for the 68% of fuel B gross masses,
Semi-coke accounts for the 32% of fuel B gross masses；Match the 63% of refuelling B gross masses before a mixing, with addition of surplus before mixing three times
Remaining 37% fuel B；Fuel B is premixed uniformly with addition of preceding elder generation and quick lime, and adds atomized water wetting, wherein quality of fuel point
Number is 92%, and the mass fraction of quick lime is 8%；The moisture of sinter mixture B is 7.3%, basicity 2.1.
Raw materials for sintering and fuel C are blended grain through a mixing, two and are mixed to form sinter mixture C three times, and fuel C is matched
It is 5.7% to add mass percent；For the fuel C by being formed after coke powder and anthracite mixing, coke powder accounts for fuel C gross mass
82%, anthracite accounts for the 18% of fuel C gross mass；With addition of the 53% of fuel C gross mass before a mixing, before mixing three times
With addition of the fuel C of residue 47%；Fuel C is premixing uniform with addition of preceding elder generation and quick lime, and add atomized water wetting, wherein fuel
Mass fraction is 88%, and the mass fraction of quick lime is 12%；The moisture of sinter mixture C is 8.3%, basicity 2.1.
Sinter mixture A cloth is added on pallet first, as bottom sintering feed, fabric thickness 245mm；So
Sinter mixture B cloth is added on bottom sintering feed afterwards, as middle level sintering feed, fabric thickness 375mm；It finally will sintering
Mixture C cloth is added on the sintering feed of middle level, as upper layer sintering feed, fabric thickness 295mm.Three kinds of sinter mixture wholes
After cloth adds, igniting exhausting is sintered, and obtains finished product sinter, and firing temperature is 1000 DEG C, and suction pressure is
14500Pa。
The granularmetric composition of coke powder wherein used is：Granularity≤0.5mm's accounts for accounting for for 16%, 0.5mm < granularities≤1mm
36%, 1mm < granularities≤3mm's accounts for 41%, and granularity > 3mm's accounts for 7%；Anthracitic granularmetric composition is：Granularity≤0.5mm's
Account for 5%, 0.5mm < granularities≤1mm account for 20%, 1mm < granularities≤3mm account for 52%, granularity > 3mm's accounts for 23%.Semi-coke
Granularmetric composition be：Granularity≤0.5mm account for 22%, 0.5mm < granularities≤1mm account for accounting for for 25%, 1mm < granularities≤3mm
45%, granularity > 3mm's accounts for 8%.
In the present embodiment, in fuel total accounting of anthracite and semi-coke be 44.5%, successfully realize with etc. low price fuel replace
For high price coke powder, sintering solid burnup is reduced to 33.2Kg/t；Small sintering ore rate is reduced to 8.5%, and drum strength is increased to
88%, reduction sex index is increased to 92%.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of sintering production method of optimization fuel collocation, which is characterized in that point three layers of cloth on pallet, and each layer is burnt
The fuel in fuel type and proportioning, sinter mixture in ramming material is with addition of than being all different；It is as follows：
(1) raw materials for sintering and fuel A are blended grain through a mixing, two and are mixed to form sinter mixture A three times, and fuel A's matches
It is 3%~4% to add mass percent；The fuel A after anthracite and semi-coke mixing by forming, and wherein it is total to account for fuel A for anthracite
The 50%~60% of quality, semi-coke account for the 40%~50% of fuel A gross masses；With refuelling A gross masses before a mixing
65%~75%, with addition of remaining fuel A before mixing three times；
(2) raw materials for sintering and fuel B are blended grain through a mixing, two and are mixed to form sinter mixture B three times, and fuel B's matches
It is 4%~5% to add mass percent；The fuel B after coke powder and semi-coke mixing by forming, and wherein coke powder accounts for fuel B gross masses
60%~70%, semi-coke accounts for the 30%~40% of fuel B gross masses；Match the 55% of refuelling B gross masses before a mixing
~65%, with addition of remaining fuel B before mixing three times；
(3) raw materials for sintering and fuel C are blended grain through a mixing, two and are mixed to form sinter mixture C three times, and fuel C is matched
It is 5%~6% to add mass percent；The fuel C is made of coke powder and anthracite, and wherein coke powder accounts for fuel C gross mass
75%~85%, anthracite accounts for the 15%~25% of fuel C gross mass；With addition of the 45% of fuel C gross mass before a mixing
~55%, with addition of remaining fuel C before mixing three times；
(4) sinter mixture A cloth is added on pallet first, as bottom sintering feed, fabric thickness is 200~
250mm；Then sinter mixture B cloth is added on bottom sintering feed, as middle level sintering feed, fabric thickness is 350~
450mm；Finally sinter mixture C cloth is added on the sintering feed of middle level, as upper layer sintering feed, fabric thickness is 250~
300mm；
After (5) three kinds of sinter mixture whole cloth add, igniting exhausting is sintered, and obtains finished product sinter, firing temperature
It it is 950~1100 DEG C, suction pressure is 12000~18000Pa.
2. a kind of sintering production method of optimization fuel collocation according to claim 1, which is characterized in that the coke powder
Granularmetric composition is：Granularity≤0.5mm account for 15%~20%, 0.5mm < granularities≤1mm account for 35%~40%, 1mm < granularities
≤ 3mm's accounts for 40%~45%, and granularity > 3mm's accounts for 5%~10%.
3. a kind of sintering production method of optimization fuel collocation according to claim 1, which is characterized in that the anthracite
Granularmetric composition be：Granularity≤0.5mm account for 5%~10%, 0.5mm < granularities≤1mm account for 15%~20%, 1mm <
Degree≤3mm's accounts for 50%~60%, and granularity > 3mm's accounts for 20%~30%.
4. a kind of sintering production method of optimization fuel collocation according to claim 1, which is characterized in that the semi-coke
Granularmetric composition is：Granularity≤0.5mm account for 15%~25%, 0.5mm < granularities≤1mm account for 25%~30%, 1mm < granularities
≤ 3mm's accounts for 45%~55%, and granularity > 3mm's accounts for 5%~10%.
5. a kind of sintering production method of optimization fuel collocation according to claim 1, which is characterized in that the sintering is mixed
The moisture for closing material A is 6%~6.5%, and the moisture of sinter mixture B is 6.5%~7.5%, and the moisture of sinter mixture C is
7.5%~8.5%.
6. a kind of sintering production method of optimization fuel collocation according to claim 1, which is characterized in that the sintering is mixed
It is identical with the basicity of sinter mixture C to close material A, sinter mixture B, and the basicity is 1.8~2.2.
7. a kind of sintering production method of optimization fuel collocation according to claim 1, which is characterized in that the fuel A,
Fuel B and fuel C uniformly with quick lime premix first, and add atomized water wetting, wherein fuel with before being added in raw materials for sintering
A or fuel B or the mass fraction of fuel C are 85%~90%, and the mass fraction of quick lime is 10%~15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810610777.8A CN108754131B (en) | 2018-06-14 | 2018-06-14 | Sintering production method for optimizing fuel matching |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109628733A (en) * | 2019-01-15 | 2019-04-16 | 中南大学 | A kind of low NOx sintering method of low-carbon based on fuel reasonable layout |
| CN110819794A (en) * | 2019-10-28 | 2020-02-21 | 鞍钢股份有限公司 | Method for improving low-temperature reduction powdering property of sinter |
| CN110819792A (en) * | 2019-10-28 | 2020-02-21 | 鞍钢股份有限公司 | Method for producing pre-reduced sinter |
| CN111411220A (en) * | 2020-04-21 | 2020-07-14 | 百色学院 | Proportioning method for different fuels of sintering mixture |
| CN111850291A (en) * | 2020-07-07 | 2020-10-30 | 鞍钢股份有限公司 | Pretreatment method of sintered solid fuel and preparation method of sintered mixture |
| CN113801991A (en) * | 2020-06-16 | 2021-12-17 | 上海梅山钢铁股份有限公司 | Method for improving quality of sinter |
| CN114317951A (en) * | 2022-01-14 | 2022-04-12 | 中天钢铁集团(南通)有限公司 | Sintering fixed-area return mine shunting device and method thereof |
| CN114574695A (en) * | 2022-01-19 | 2022-06-03 | 中南大学 | Sintering method of ferromanganese ore pellets |
| CN114574694A (en) * | 2022-01-19 | 2022-06-03 | 中南大学 | New method for sintering fine iron powder pellets |
| CN116875798A (en) * | 2023-09-09 | 2023-10-13 | 吕梁建龙实业有限公司 | Iron ore sintering optimization method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4082539A (en) * | 1975-04-02 | 1978-04-04 | Nippon Steel Corporation | Method for the preliminary treatment of materials for sintering |
| JPH03134123A (en) * | 1989-10-18 | 1991-06-07 | Nkk Corp | Manufacture of sintered ore |
| CN1851012A (en) * | 2006-05-18 | 2006-10-25 | 代汝昌 | Sintering heat gradient optimizing method for iron and steel metallurgical industry |
| CN101928824A (en) * | 2009-06-22 | 2010-12-29 | 鞍钢股份有限公司 | Sinter production method for reducing sintering solid burnup and enhancing intensity |
| CN103509938A (en) * | 2012-06-20 | 2014-01-15 | 鞍钢股份有限公司 | Method for preventing excessive fusion of prereduced sinter |
| CN103937921A (en) * | 2014-03-28 | 2014-07-23 | 酒泉钢铁(集团)有限责任公司 | Hierarchical material distribution reduction method for sponge iron tunnel kiln and tunnel kiln applying same |
| CN104164556A (en) * | 2014-07-31 | 2014-11-26 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Chain grate-tandem rotary kiln whole-particle fraction magnetic roasting process for refractory low-grade iron ore |
| CN104195325A (en) * | 2014-08-05 | 2014-12-10 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Step-by-step oxygenating, magnetizing and roasting process of powdery difficult-to-separate iron ores in tunnel kiln |
| CN104726691A (en) * | 2015-04-03 | 2015-06-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Reducing roasting method for powdered iron ores in tunnel kiln |
| CN105274324A (en) * | 2015-09-11 | 2016-01-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Iron ore tunnel kiln magnetizing roasting layering material distributing reduction method |
| CN105296746A (en) * | 2014-07-30 | 2016-02-03 | 宝山钢铁股份有限公司 | Method for reducing sintered solid fuel consumption |
| CN105603180A (en) * | 2016-01-28 | 2016-05-25 | 西安建筑科技大学 | Method for producing sinter at low cost |
-
2018
- 2018-06-14 CN CN201810610777.8A patent/CN108754131B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4082539A (en) * | 1975-04-02 | 1978-04-04 | Nippon Steel Corporation | Method for the preliminary treatment of materials for sintering |
| JPH03134123A (en) * | 1989-10-18 | 1991-06-07 | Nkk Corp | Manufacture of sintered ore |
| CN1851012A (en) * | 2006-05-18 | 2006-10-25 | 代汝昌 | Sintering heat gradient optimizing method for iron and steel metallurgical industry |
| CN101928824A (en) * | 2009-06-22 | 2010-12-29 | 鞍钢股份有限公司 | Sinter production method for reducing sintering solid burnup and enhancing intensity |
| CN103509938A (en) * | 2012-06-20 | 2014-01-15 | 鞍钢股份有限公司 | Method for preventing excessive fusion of prereduced sinter |
| CN103937921A (en) * | 2014-03-28 | 2014-07-23 | 酒泉钢铁(集团)有限责任公司 | Hierarchical material distribution reduction method for sponge iron tunnel kiln and tunnel kiln applying same |
| CN105296746A (en) * | 2014-07-30 | 2016-02-03 | 宝山钢铁股份有限公司 | Method for reducing sintered solid fuel consumption |
| CN104164556A (en) * | 2014-07-31 | 2014-11-26 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Chain grate-tandem rotary kiln whole-particle fraction magnetic roasting process for refractory low-grade iron ore |
| CN104195325A (en) * | 2014-08-05 | 2014-12-10 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Step-by-step oxygenating, magnetizing and roasting process of powdery difficult-to-separate iron ores in tunnel kiln |
| CN104726691A (en) * | 2015-04-03 | 2015-06-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Reducing roasting method for powdered iron ores in tunnel kiln |
| CN105274324A (en) * | 2015-09-11 | 2016-01-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Iron ore tunnel kiln magnetizing roasting layering material distributing reduction method |
| CN105603180A (en) * | 2016-01-28 | 2016-05-25 | 西安建筑科技大学 | Method for producing sinter at low cost |
Non-Patent Citations (1)
| Title |
|---|
| 黄柱成 等: "铁矿烧结中燃料合理分布研究", 《中南大学学报(自然科学版)》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109628733A (en) * | 2019-01-15 | 2019-04-16 | 中南大学 | A kind of low NOx sintering method of low-carbon based on fuel reasonable layout |
| CN110819794A (en) * | 2019-10-28 | 2020-02-21 | 鞍钢股份有限公司 | Method for improving low-temperature reduction powdering property of sinter |
| CN110819792A (en) * | 2019-10-28 | 2020-02-21 | 鞍钢股份有限公司 | Method for producing pre-reduced sinter |
| CN111411220A (en) * | 2020-04-21 | 2020-07-14 | 百色学院 | Proportioning method for different fuels of sintering mixture |
| CN113801991A (en) * | 2020-06-16 | 2021-12-17 | 上海梅山钢铁股份有限公司 | Method for improving quality of sinter |
| CN111850291A (en) * | 2020-07-07 | 2020-10-30 | 鞍钢股份有限公司 | Pretreatment method of sintered solid fuel and preparation method of sintered mixture |
| CN114317951A (en) * | 2022-01-14 | 2022-04-12 | 中天钢铁集团(南通)有限公司 | Sintering fixed-area return mine shunting device and method thereof |
| CN114317951B (en) * | 2022-01-14 | 2023-11-24 | 中天钢铁集团(南通)有限公司 | Device and method for distributing return ores in sintering fixed area |
| CN114574695A (en) * | 2022-01-19 | 2022-06-03 | 中南大学 | Sintering method of ferromanganese ore pellets |
| CN114574694A (en) * | 2022-01-19 | 2022-06-03 | 中南大学 | New method for sintering fine iron powder pellets |
| CN114574694B (en) * | 2022-01-19 | 2023-08-22 | 中南大学 | Novel method for sintering iron concentrate powder balls |
| CN114574695B (en) * | 2022-01-19 | 2023-08-22 | 中南大学 | Sintering method of iron-manganese ore pellets |
| CN116875798A (en) * | 2023-09-09 | 2023-10-13 | 吕梁建龙实业有限公司 | Iron ore sintering optimization method |
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