CN104294036A - Iron ore pellet roasting device - Google Patents
Iron ore pellet roasting device Download PDFInfo
- Publication number
- CN104294036A CN104294036A CN201410638494.6A CN201410638494A CN104294036A CN 104294036 A CN104294036 A CN 104294036A CN 201410638494 A CN201410638494 A CN 201410638494A CN 104294036 A CN104294036 A CN 104294036A
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- China
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- shaft furnace
- belt type
- steel belt
- communicated
- air blast
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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
- C22B1/214—Sintering; Agglomerating in shaft furnaces
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to an iron ore pellet roasting device. The iron ore pellet roasting device comprises a shaft furnace, and is characterized in that a steel belt type drying machine which is used for conveying fresh pellets into the shaft furnace is arranged on the outer side of the top of the shaft furnace; a communicated sealing cover is arranged above the steel belt type drying machine and at the top of the shaft furnace; partition plates are arranged at the positions, corresponding to the front and rear parts of the steel belt type drying machine, in the sealing cover, and are used for forming an air draft drying section communicated with the shaft furnace and an air blast drying section which is adjacent to the feeding end of the steel belt type drying machine; a multi-tube dust remover, an air blast drying fan and an air box are arranged below the steel belt type drying machine; the multi-tube dust remover is communicated with the air draft drying section; the air blast drying fan and the air box are connected to the flue gas outlet end of the multi-tube dust remover and are communicated with the air blast drying section; the air blast drying section is connected with a dust removal system. The iron ore pellet roasting device is reasonable in structure and reliable to use, the problems that the drying speed of the fresh pellets is low, the energy consumption is high, the working strength of material distribution at the top of the furnace is high and the operating environment is severe in the roasting process of an existing shaft furnace are fundamentally solved, the automation operation level of the shaft furnace is remarkably improved, and the energy consumption is reduced.
Description
Technical field
The present invention relates to pellet formation equipment, particularly a kind of iron ore pellet roasting device improving Shaft Furnace Pelletizing Process list furnace output and pellet quality.
Background technology
Within 1972, China designs the low pressure roasting type of furnace with Chinese characteristic, in vertical cylindrical furnace, namely sets up central guiding brattice and furnace roof drying bed, gas stream in the stove is evenly distributed, and is formed and stablizes and rational roasting system, make stock column resistance in stove obviously decline simultaneously.Along with China pelletizing process produces the fast development of acid pellet, pelletizing plant maximizes gradually, and single furnace output of Shaft Furnace Pelletizing Process weak tendency less than normal also progressively embodies, and its process energy consumption is higher, and roof material distributing working strength is large, severe operational environment.Find through research, a principal element of restriction Shaft Furnace Pelletizing Process output is that green-ball rate of drying is on drying beds low, level of automation is low, and furnace roof air leak rate of air curtain is high.Therefore, existing pellet roasting device urgently improves.
Summary of the invention
The object of the invention is to provide rational in infrastructure, service-strong iron ore pellet roasting device, fundamentally solve in existing Approach for Shaft Furnace Roasting Process that green-ball rate of drying is slow, energy consumption is higher, the problem of the large and severe operational environment of roof material distributing working strength, significantly improve the automated operation level of shaft furnace, reduce energy consumption.
Technical scheme of the present invention is:
A kind of iron ore pellet roasting device, comprise shaft furnace, it is characterized in that: described shaft furnace top outer is provided with the steel belt type dryer carrying green-ball in shaft furnace, be provided with shaft furnace top the seal closure be communicated with above described steel belt type dryer, in described seal closure before corresponding steel belt type dryer, rear portion is provided with dividing plate and the down-draft drying zone and the blasting drying period adjacent with steel belt type dryer material feeding end that utilize dividing plate to be formed to communicate with shaft furnace, multi-tube dust cleaner is provided with below described steel belt type dryer, drum dry-air blast machine and bellows, described multi-tube dust cleaner is communicated with down-draft drying zone, described bulging dry-air blast machine is connected to the smoke outlet of multi-tube dust cleaner with bellows and is communicated with blasting drying period, described blasting drying period is separately connected with dust-removal system.
Above-mentioned iron ore pellet roasting device, the combustion chamber of described shaft furnace is communicated with burner blower, and the cold wind mouth of described shaft furnace is communicated with cooling blower.
The invention has the beneficial effects as follows:
1, this device eliminates furnace roof drying bed, a kind of steel belt type dryer is utilized to carry out drying outside stove, shaft furnace top seals with utilizing the seal closure be communicated with above steel belt type dryer simultaneously, furnace roof hot waste gas is utilized to carry out drying to green-ball, green-ball experienced by down-draft drying zone and blasting drying period twice drying process altogether, significantly improve the rate of drying of green-ball, thus indirectly improve the output of separate unit shaft furnace;
2, after shaft furnace top utilizes seal closure to seal, improve throat platform operating environment, alleviate the working strength of roof material distributing;
3, after shaft furnace top utilizes seal closure to seal, reduce furnace roof air leak rate of air curtain, reduce fly-ash separator air quantity, reduce the power requirement to dedusting fan, thus reach energy-conservation object;
4, improve the automatic control level of shaft furnace production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, sequence number illustrates: 1 shaft furnace, 2 seal closures, 3 down-draft drying zones, 4 blasting drying periods, 5 steel belt type dryers, 6 drum dry-air blast machines, 7 multi-tube dust cleaners, 8 combustion chambers, 9 cold wind mouths, 10 cooling blowers, 11 burner blowers, 12 dividing plates, 13 dust-removal systems.
Embodiment
As shown in Figure 1, this iron ore pellet roasting device, comprises shaft furnace 1, and the combustion chamber 8 of described shaft furnace 1 is communicated with burner blower 11, and the cold wind mouth 9 of described shaft furnace 1 is communicated with cooling blower 10.Described shaft furnace 1 top outer is provided with the steel belt type dryer 5 carrying green-ball in shaft furnace 1, be provided with shaft furnace 1 top the seal closure 2 be communicated with above described steel belt type dryer 5, in described seal closure 2 before corresponding steel belt type dryer 5, rear portion is provided with dividing plate 12 and the down-draft drying zone 3 and the blasting drying period 4 adjacent with steel belt type dryer 5 material feeding end that utilize dividing plate 12 to be formed to communicate with shaft furnace 1, multi-tube dust cleaner 7 is provided with below described steel belt type dryer 5, drum dry-air blast machine 6 and bellows (omitting in figure), described multi-tube dust cleaner 7 is communicated with down-draft drying zone 3, described bulging dry-air blast machine 6 is connected to the smoke outlet of multi-tube dust cleaner 7 with bellows and is communicated with blasting drying period 4, described blasting drying period 4 is separately connected with dust-removal system 13.
Principle of work: green-ball at steel belt type dryer 5, carries out preheating and baking by entering shaft furnace 1 after the abundant drying of blasting drying period 4 and down-draft drying zone 3 with certain thickness uniform distribution.Specifically, the hot blast flue gas that shaft furnace 1 furnace roof is 400 DEG C ~ 600 DEG C passes the bed of material and steel belt type dryer 5 surface by down-draft drying zone 3, send into bellows by the hot blast flue gas of 200 DEG C ~ 300 DEG C after multi-tube dust cleaner 7 purifies by rousing dry-air blast machine 6, then enter dust-removal system 13 and purify rear discharge after being collected by seal closure 2 through steel belt type dryer 5 surface and the bed of material.
Claims (2)
1. an iron ore pellet roasting device, comprise shaft furnace, it is characterized in that: described shaft furnace top outer is provided with the steel belt type dryer carrying green-ball in shaft furnace, be provided with shaft furnace top the seal closure be communicated with above described steel belt type dryer, in described seal closure before corresponding steel belt type dryer, rear portion is provided with dividing plate and the down-draft drying zone and the blasting drying period adjacent with steel belt type dryer material feeding end that utilize dividing plate to be formed to communicate with shaft furnace, multi-tube dust cleaner is provided with below described steel belt type dryer, drum dry-air blast machine and bellows, described multi-tube dust cleaner is communicated with down-draft drying zone, described bulging dry-air blast machine is connected to the smoke outlet of multi-tube dust cleaner with bellows and is communicated with blasting drying period, described blasting drying period is separately connected with dust-removal system.
2. iron ore pellet roasting device according to claim 1, is characterized in that: the combustion chamber of described shaft furnace is communicated with burner blower, the cold wind mouth of described shaft furnace is communicated with cooling blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410638494.6A CN104294036B (en) | 2014-11-13 | 2014-11-13 | Iron ore pellet roasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410638494.6A CN104294036B (en) | 2014-11-13 | 2014-11-13 | Iron ore pellet roasting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104294036A true CN104294036A (en) | 2015-01-21 |
| CN104294036B CN104294036B (en) | 2016-03-23 |
Family
ID=52313981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410638494.6A Active CN104294036B (en) | 2014-11-13 | 2014-11-13 | Iron ore pellet roasting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104294036B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439888A (en) * | 2018-12-17 | 2019-03-08 | 东北大学 | A kind of low swage magnetic iron ore nested type vertical baking furnace of high vanadium titanium and its application method |
| CN109612262A (en) * | 2018-12-13 | 2019-04-12 | 湖南奔鑫冶炼有限公司 | A kind of ferro-alloy pellets shaft furnace |
| CN110373537A (en) * | 2019-07-24 | 2019-10-25 | 武汉科技大学 | A kind of drying grate-Shaft Furnace Pelletizing Process roasting system and its application method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468968A (en) * | 2002-09-29 | 2004-01-21 | 东北大学 | Double-blowing two-seat two-row vertical pellet-roasting furnace |
| CN101538629A (en) * | 2009-02-05 | 2009-09-23 | 丁家伟 | Process and device for smelting chromium irons and chromium-containing molten iron by using chromium ore powder |
| CN203683636U (en) * | 2014-01-26 | 2014-07-02 | 贵州义信矿业有限公司 | Novel shaft furnace for roasting scherbinaite coal composite additive burden |
| CN204111834U (en) * | 2014-11-13 | 2015-01-21 | 中冶北方（大连）工程技术有限公司 | Iron ore pellet roasting device |
-
2014
- 2014-11-13 CN CN201410638494.6A patent/CN104294036B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468968A (en) * | 2002-09-29 | 2004-01-21 | 东北大学 | Double-blowing two-seat two-row vertical pellet-roasting furnace |
| CN101538629A (en) * | 2009-02-05 | 2009-09-23 | 丁家伟 | Process and device for smelting chromium irons and chromium-containing molten iron by using chromium ore powder |
| CN203683636U (en) * | 2014-01-26 | 2014-07-02 | 贵州义信矿业有限公司 | Novel shaft furnace for roasting scherbinaite coal composite additive burden |
| CN204111834U (en) * | 2014-11-13 | 2015-01-21 | 中冶北方（大连）工程技术有限公司 | Iron ore pellet roasting device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612262A (en) * | 2018-12-13 | 2019-04-12 | 湖南奔鑫冶炼有限公司 | A kind of ferro-alloy pellets shaft furnace |
| CN109612262B (en) * | 2018-12-13 | 2023-05-16 | 内蒙古新太元新材料有限公司 | Ferroalloy pellet shaft furnace |
| CN109439888A (en) * | 2018-12-17 | 2019-03-08 | 东北大学 | A kind of low swage magnetic iron ore nested type vertical baking furnace of high vanadium titanium and its application method |
| CN110373537A (en) * | 2019-07-24 | 2019-10-25 | 武汉科技大学 | A kind of drying grate-Shaft Furnace Pelletizing Process roasting system and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104294036B (en) | 2016-03-23 |
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