CN103498046A - Process for mixing materials and making external-rolled coal through sintering machine - Google Patents
Process for mixing materials and making external-rolled coal through sintering machine Download PDFInfo
- Publication number
- CN103498046A CN103498046A CN201310521696.8A CN201310521696A CN103498046A CN 103498046 A CN103498046 A CN 103498046A CN 201310521696 A CN201310521696 A CN 201310521696A CN 103498046 A CN103498046 A CN 103498046A
- Authority
- CN
- China
- Prior art keywords
- fuel
- solid fuel
- coal
- mixing
- sintering
- 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
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a process for mixing materials and making external-rolled coal through a sintering machine, wherein the process includes the steps of preparing materials, conducting mixing and making balls. The process is characterized in that a mixing and ball making technology combining internal matched solid fuel with externally-rolled fuel is adopted, the internal matched solid fuel which is 25wt% to 35wt% of the amount of the solid fuel added to the mixed raw material is added to the mixed raw material in a material preparing chamber fuel mine tank, mixing and ball making are conducted to make small balls which contain the internal matched solid fuel accounting for 50wt% to 60wt% of the total weight of balls and have the particle size ranging from 1mm to 3mm, the solid fuel which is 65wt% to 75wt% of the amount of the solid fuel added to the mixed raw material is used as externally-rolled fuel and added into the fuel material preparing tank, the mixture along with the made small balls are fed to a three-time feed belt machine through a constant weight feeder, then, the mixture and the small balls are sent to a coal rolling machine so that sinter of the externally-rolled fuel can be obtained, and the sinter is conveyed to a sintering chamber through a sealing-tape machine so that sintering can be conducted. The process for mixing the materials and making the external-rolled coal through the sintering machine has the advantages that the fuel is evenly distributed, the combustion condition of the fuel is improved, the sintering quality is improved, and meanwhile consumption of the solid fuel can be lowered.
Description
Technical field
The invention belongs to iron-smelting raw material pellet agglomerate agglomeration field, particularly a kind of mixture of sintering machine rolls coal technique outward.
Background technology
Existing sintering technology all adopts proportioning room directly to allocate fuel engineering into, due to the about 50kg/t-s of firing rate, compare the about 1.8t/t-s of compound consumption, very little, easily cause the segregation phenomena of fuel, so that melt terribly at the position material of fuel gathering, and the position air of fuel rareness is not used, material is sintering well, and Sintering Yield descends and affects the quality of agglomerate.
Therefore, need a kind of mixture of sintering machine to roll coal technique outward, improve the combustion conditions of fuel, save solid fuel consumption, reduce the quantity discharged of toxic gas CO, improve yield rate and output, reduce Pulverization ratio, promote the agglomerate quality.
Summary of the invention
The object of the present invention is to provide a kind of fuel distribution even, improve the combustion conditions of fuel, reduce the quantity discharged of CO toxic gas in the burn incompletely resultant, improve sintering quality, the mixture of sintering machine that can save solid fuel consumption simultaneously rolls coal technique outward.
The objective of the invention is to realize by following technical proposals:
Roll coal technique outward according to mixture of sintering machine of the present invention, comprise batching, mixing, pelletizing, it is characterized in that: allocate solid fuel in adopting as follows into and roll the mixed pelletizing technology of fuel outward,
Inside allocate solid fuel into:
(1) batching, mix: to add in the raw material compound of proportioning room fuel ore deposit groove weight percent be the raw material compound add the solid fuel amount 25%～35% in the solid fuel allocated into,
Mix: above-mentioned raw materials compound and solid fuel are sent into to mixing machine by the one-time feeding conveyor and mix, mixing time is 2～3 minutes; Join compound in making once;
(2) pelletizing: feed drum pelletizer by the secondary feeding conveyor and manufactured mini-pellets joining compound in making once in step (1), the granulation time is 3～6 minutes, makes and accounts for 50%～60% of pelletizing gross weight, the mini-pellets that particle diameter is 1～3mm;
Roll fuel outward:
(3) discharge end of the drum pelletizer in step (2) is installed a fuel dosing vessel; and below the fuel dosing vessel, constant feeder is installed; using weight percent account for 65%～75% solid fuel that the raw material compound adds the solid fuel amount as outside roll fuel and join in the fuel dosing vessel; and after the mini-pellets of manufacturing through constant feeder and step (2) feeds three belt feeders in the lump; send into outer coal coater; carry out secondary with addition of outside roll fuel; make the outer agglomerate that rolls fuel, transport agglomerating chamber to by conveyor drive and carry out sintering.
Described raw material compound (by weight percentage), comprise iron ore concentrate: 46.42%～49.10%, Wingdale and rhombspar: 5.48%～7.76%, cold return fines material: 16.37 %～17.16%, BF return fines: 5.43%～5.72%, surplus is water and inevitable impurity.
Allocating solid fuel in described into and rolling fuel outward is coal dust and coke powder.
The granularity of described coal dust and coke powder is: what granularity was 1～3mm accounts for 80%～99%.
The present invention compared with prior art has following advantage:
The present invention interior allocate that solid-fuelled sinter mixture mixes into and pelletizing after, adopted for the second time and rolled fuel outward, make compound or pelletizing surface oxidation calcium contents high, and fuel distribution is even, has greatly changed the ventilation property of kind sintered material; Reduce the quantity discharged of CO toxic gas in the burn incompletely resultant, can save simultaneously solid fuel consumption this, to reducing Pulverization ratio, improve sinter quality very favourable, its energy consumption can reduce by 3%～5%, in agglomerate, FeO content can reduce by 1%～3%.
The accompanying drawing explanation
Fig. 1 is that mixture of sintering machine of the present invention rolls the coal process flow sheet outward.
Embodiment
Further illustrate the specific embodiment of the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, according to mixture of sintering machine of the present invention, roll coal technique outward, comprise batching, mixing, pelletizing, it is characterized in that: allocate solid fuel in adopting as follows into and roll the mixed pelletizing technology of fuel outward,
Inside allocate solid fuel into:
(1) batching, mix: to add in the raw material compound of proportioning room fuel ore deposit groove 1 weight percent be the raw material compound add the solid fuel amount 25%～35% in the solid fuel allocated into,
Mix: above-mentioned raw materials compound and solid fuel are sent into to mixing machine 3 by one-time feeding conveyor 2 and mix, mixing time is 2～3 minutes; Join compound in making once;
(2) pelletizing: by joining compound in making once in step (1), feed drum pelletizer 5 by secondary feeding conveyor 4 and manufactured mini-pellets, the granulation time is 3～6 minutes, make and account for 50%～60% of pelletizing gross weight, the solid fuel mini-pellets of allocating in particle diameter is 1～3mm;
Roll fuel outward:
(3) discharge end of the drum pelletizer 5 in step (2) is installed a fuel dosing vessel 6; and constant feeder 7 is installed below fuel dosing vessel 6; using weight percent account for 65%～75% solid fuel that the raw material compound adds the solid fuel amount as outside roll fuel and join in fuel dosing vessel 6; and after the mini-pellets of manufacturing through constant feeder 7 and step (2) feeds three belt feeders 8 in the lump; send into outer coal coater 9; carry out secondary with addition of outside roll fuel; make the outer agglomerate that rolls fuel, transport agglomerating chamber to by conveyor drive 10 and carry out sintering.
Described raw material compound (by weight percentage), comprise iron ore concentrate: 46.42%～49.10%, Wingdale and rhombspar: 5.48%～7.76%, cold return fines material: 16.37%～17.16%, BF return fines: 5.43 %～5.72%, surplus is water and inevitable impurity.
Allocating solid fuel in described into and rolling fuel outward is coal dust and coke powder.
The granularity of described coal dust and coke powder is: what granularity was 1～3mm accounts for 80%～99%.
Adopt mixture of sintering machine of the present invention to roll coal technique outward, we have been equipped with four batches of pellet agglomerates, after twice is joined the solid fuel mixed pelletizing by distributor cloth, sintering on sinter machine.Its proportioning raw materials is as shown in table 1.
The raw material of embodiment and join the solid fuel granularity for twice and proportion and technical indicator (weight percent)
Wherein, also contain water and inevitable impurity in the raw material compound.Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, technical scheme of the present invention is carried out the modification in parameter area but do not broken away from the aim of technical solution of the present invention, all is encompassed in the middle of claim scope of the present invention.
Claims (4)
1. a mixture of sintering machine rolls coal technique outward, comprises batching, mixing, pelletizing, it is characterized in that: allocate solid fuel in adopting as follows into and roll the mixed pelletizing technology of fuel outward,
Inside allocate solid fuel into:
(1) batching, mix: to add in the raw material compound of proportioning room fuel ore deposit groove weight percent be the raw material compound add the solid fuel amount 25%～35% in the solid fuel allocated into,
Mix: above-mentioned raw materials compound and solid fuel are sent into to mixing machine by the one-time feeding conveyor and mix, mixing time is 2～3 minutes; Join compound in making once;
(2) pelletizing: feed drum pelletizer by the secondary feeding conveyor and manufactured mini-pellets joining compound in making once in step (1), the granulation time is 3～6 minutes, makes and accounts for 50%～60% of pelletizing gross weight, the mini-pellets that particle diameter is 1～3mm;
Roll fuel outward:
(3) discharge end of the drum pelletizer in step (2) is installed a fuel dosing vessel; and below the fuel dosing vessel, constant feeder is installed; using weight percent be raw material compound 65%～75% the solid fuel that adds the solid fuel amount as outside roll fuel and join in the fuel dosing vessel; and after the mini-pellets of manufacturing through constant feeder and step (2) feeds three belt feeders in the lump; send into coal coater; carry out secondary with addition of outside roll fuel, make the agglomerate of allocating fuel into and transport agglomerating chamber to by conveyor drive and carry out sintering.
2. roll coal technique outward according to the described mixture of sintering machine of claim 1, it is characterized in that described raw material compound (by weight percentage), comprise iron ore concentrate: 46.42%～49.10%, Wingdale and rhombspar: 5.48%～7.76%, cold return fines material: 16.37%～17.16%, BF return fines: 5.43%～5.72%, surplus is water and inevitable impurity.
3. roll coal technique outward according to the described mixture of sintering machine of claim 1, it is characterized in that in described allocating solid fuel into and rolling fuel outward is coal dust and coke powder.
4. roll coal technique outward according to the described mixture of sintering machine of claim 3, it is characterized in that the granularity of described coal dust and coke powder is: what granularity was 1～3mm accounts for 80%～99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310521696.8A CN103498046A (en) | 2013-10-30 | 2013-10-30 | Process for mixing materials and making external-rolled coal through sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310521696.8A CN103498046A (en) | 2013-10-30 | 2013-10-30 | Process for mixing materials and making external-rolled coal through sintering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103498046A true CN103498046A (en) | 2014-01-08 |
Family
ID=49863306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310521696.8A Pending CN103498046A (en) | 2013-10-30 | 2013-10-30 | Process for mixing materials and making external-rolled coal through sintering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103498046A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223330A (en) * | 2014-06-27 | 2016-01-06 | 宝山钢铁股份有限公司 | A kind of detection method of coke oven cased coal mixing uniformity |
| CN105821205A (en) * | 2015-01-07 | 2016-08-03 | 宝山钢铁股份有限公司 | Processing equipment for sintering mixture and processing method thereof |
| CN109112295A (en) * | 2018-09-04 | 2019-01-01 | 云南德胜钢铁有限公司 | A kind of your placer raw materials for sintering and preparation method thereof |
| CN113652547A (en) * | 2021-08-16 | 2021-11-16 | 中南大学 | Method and system for producing double-layer pellets |
| CN114251948A (en) * | 2020-09-22 | 2022-03-29 | 中冶长天国际工程有限责任公司 | Sintering fuel segregation distributing device and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62164836A (en) * | 1986-01-17 | 1987-07-21 | Ishikawajima Harima Heavy Ind Co Ltd | Vertical sintering machine |
| CN1074713A (en) * | 1993-02-18 | 1993-07-28 | 冶金工业部钢铁研究总院 | Small-ball sintering mine making method of all-magnet concentrate |
| CN1160084A (en) * | 1996-03-18 | 1997-09-24 | 安阳钢铁集团有限责任公司 | Method for making quicklime iron concentrate briquette agglomerate |
| CN1162020A (en) * | 1996-04-09 | 1997-10-15 | 安阳钢铁集团有限责任公司 | Method for adhering solid fuel onto granulated sintered mixed material |
| CN1201835A (en) * | 1998-05-29 | 1998-12-16 | 冶金工业部钢铁研究总院 | Production of sintered pelletized minerals |
| CN1851012A (en) * | 2006-05-18 | 2006-10-25 | 代汝昌 | Sintering heat gradient optimizing method for iron and steel metallurgical industry |
| CN101532084A (en) * | 2009-04-23 | 2009-09-16 | 攀枝花新钢钒股份有限公司 | Method for charging iron ore sintering fuel |
| CN102417973A (en) * | 2011-11-14 | 2012-04-18 | 山西太钢不锈钢股份有限公司 | Addition process and system for sintering fuels |
-
2013
- 2013-10-30 CN CN201310521696.8A patent/CN103498046A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62164836A (en) * | 1986-01-17 | 1987-07-21 | Ishikawajima Harima Heavy Ind Co Ltd | Vertical sintering machine |
| CN1074713A (en) * | 1993-02-18 | 1993-07-28 | 冶金工业部钢铁研究总院 | Small-ball sintering mine making method of all-magnet concentrate |
| CN1160084A (en) * | 1996-03-18 | 1997-09-24 | 安阳钢铁集团有限责任公司 | Method for making quicklime iron concentrate briquette agglomerate |
| CN1162020A (en) * | 1996-04-09 | 1997-10-15 | 安阳钢铁集团有限责任公司 | Method for adhering solid fuel onto granulated sintered mixed material |
| CN1201835A (en) * | 1998-05-29 | 1998-12-16 | 冶金工业部钢铁研究总院 | Production of sintered pelletized minerals |
| CN1851012A (en) * | 2006-05-18 | 2006-10-25 | 代汝昌 | Sintering heat gradient optimizing method for iron and steel metallurgical industry |
| CN101532084A (en) * | 2009-04-23 | 2009-09-16 | 攀枝花新钢钒股份有限公司 | Method for charging iron ore sintering fuel |
| CN102417973A (en) * | 2011-11-14 | 2012-04-18 | 山西太钢不锈钢股份有限公司 | Addition process and system for sintering fuels |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223330A (en) * | 2014-06-27 | 2016-01-06 | 宝山钢铁股份有限公司 | A kind of detection method of coke oven cased coal mixing uniformity |
| CN105223330B (en) * | 2014-06-27 | 2017-01-25 | 宝山钢铁股份有限公司 | Detection method for mixing uniformity degree of charged coal in coke oven |
| CN105821205A (en) * | 2015-01-07 | 2016-08-03 | 宝山钢铁股份有限公司 | Processing equipment for sintering mixture and processing method thereof |
| CN105821205B (en) * | 2015-01-07 | 2017-11-28 | 宝山钢铁股份有限公司 | The processing equipment and its processing method of a kind of sinter mixture |
| CN109112295A (en) * | 2018-09-04 | 2019-01-01 | 云南德胜钢铁有限公司 | A kind of your placer raw materials for sintering and preparation method thereof |
| CN114251948A (en) * | 2020-09-22 | 2022-03-29 | 中冶长天国际工程有限责任公司 | Sintering fuel segregation distributing device and method |
| CN113652547A (en) * | 2021-08-16 | 2021-11-16 | 中南大学 | Method and system for producing double-layer pellets |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104232883B (en) | A kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio | |
| CN103498046A (en) | Process for mixing materials and making external-rolled coal through sintering machine | |
| CN109423555B (en) | Efficient iron ore sintering method using low-silicon iron fine powder | |
| CN101649390A (en) | Method for ultra-fine refined flour sintering for large-scale sintering machine | |
| CN104073627A (en) | Production method of fluxed composite pellet | |
| CN103757202B (en) | Sintering method for sintering part of return ores without granulation | |
| CN110317948B (en) | Sintering method of meishan iron ore concentrate | |
| CN101994002B (en) | Method for sintering ore blending of Jianshan concentrate fines and limonite | |
| CN102787234A (en) | High-ratio sintering method for limonite | |
| CN101177731B (en) | Method for preparing sintered ore | |
| CN103627895A (en) | Production method for sintering chromium powder ore by continuous strand sinter machine | |
| CN104787741B (en) | The method of the carbon containing powder resource utilization of industry | |
| JP2009052138A (en) | Process for producing carbonaceous-material-including metal oxide briquette | |
| CN105331808A (en) | Method for iron ore powder agglomeration | |
| KR101328305B1 (en) | Method for manufacturing sintered iron ore using pellet feed | |
| CN108950191A (en) | Carbon-containing briquette for preparing full-concentrate sintering mixture and mixture preparation method | |
| CN104630454A (en) | Ground phosphorite sintering technique | |
| CN101445870B (en) | Joint adding method for producing fuel flux by sintering iron ore powder and device thereof | |
| CN109136543B (en) | Sintering method of magnetite with high proportion | |
| CN109402382B (en) | Sintered material preparation method, sintered material prepared by sintered material preparation method and sintered ore | |
| KR20130066238A (en) | Method for manufacturing sintered ore by using fine iron ore with high alumina content | |
| CN108165734A (en) | A kind of sintered technique and system | |
| CN103160686A (en) | Proportioning method of solid fuel for sintering | |
| JP2013104108A (en) | Method for producing unfired carbon-containing agglomerate | |
| CN112779416A (en) | Low-silicon sintering method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140108 |