CN102021314A - Sinter cooler lump ore braking system - Google Patents
Sinter cooler lump ore braking system Download PDFInfo
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- CN102021314A CN102021314A CN 201010585254 CN201010585254A CN102021314A CN 102021314 A CN102021314 A CN 102021314A CN 201010585254 CN201010585254 CN 201010585254 CN 201010585254 A CN201010585254 A CN 201010585254A CN 102021314 A CN102021314 A CN 102021314A
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- lump ore
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Abstract
The invention belongs to the technical field of metallurgy and discloses a sinter cooler lump ore braking system. A lump ore material pile, a lump ore proportional adding device, a computer, a sinter, a cooler, a cold griddle, a blast furnace overhead bin and a blast furnace are sequentially connected to form the system, wherein the lump ore proportional adding device comprises a lump ore feeding bin, a quantitative lump ore feeding device, a lump ore metering device and a lump ore metering control cabinet; the quantitative lump ore feeding device is arranged below the discharge hole of the lump ore feeding bin; the lump ore metering device is arranged below the quantitative lump ore feeding device; the quantitative lump ore feeding device, the lump ore metering device and the sinter are respectively connected with the lump ore metering control cabinet; and the lump ore metering device is also connected with the cooler. The system provided by the invention has simple structure, recycles waste heat of the cooler for drying and dehydrating wet lump ore, and finally cools to about 80 DEG C, thus increasing the temperature of charged lump ore, maintaining the reasonable temperature at the blast furnace top to be 100-170 DEG C, and prolonging the service life of a bag-type dust collector in follow-up processes.
Description
Technical field
The invention belongs to metallurgical technology field, particularly a kind of sinter cooler toasts the lump ore system.
Background technology
In Steel Complex, blast furnace directly can effectively reduce cost with addition of lump ore.Yet, lump ore at exploitation, whole grain, store up, in the transportation, because of distance (the mine fire is transported to transport by sea water port of debarkation, fire of delivery harbour, shipment and transported to Iron And Steel Company's stock yard), time span big (sleety weather of experience Various Seasonal), air storage, so contain powder rate height, water content is higher.Lump ore is in screening process, easily stop up sieve aperture, have a strong impact on blast furnace production, show: a, lump ore and breeze adhere to each other because of wet, can not separate, breeze stick on the sieve end, the sieve aperture and the knot that hardens thick, cause screening efficiency low, still have the breeze of a large amount of＜5mm to enter blast furnace, influence the normal direct motion of blast furnace, energy consumption raises; B, lump ore water content are many 6 ~ 10%, and especially in sleet season, with the dew-point temperature that reduces below the blast furnace throat temperature to 100 ℃, easy dewfall binding dust has influence on the normal trouble-free service of follow-up dry gas cleaning coal gas system.
Summary of the invention
The object of the present invention is to provide a kind ofly can be lifted into charge-temperature, keep the sinter cooler baking lump ore system of blast furnace furnace roof reasonable temperature between 100～170 ℃.
For achieving the above object, the present invention has taked following technical scheme: a kind of sinter cooler toasts the lump ore system, its special feature is: by the lump ore stockpile, lump ore is in proportion with addition of device, computer, sinter machine, cooler, cold jig, the blast furnace elevated hopper, blast furnace is connected in series successively, described lump ore comprises the lump ore feeding bin with addition of device in proportion, the lump ore metering device, the lump ore measuring apparatus, lump ore measure control cabinet (lump ore metering device, the lump ore measuring apparatus, lump ore measure control cabinet is commercial product), the lump ore metering device is arranged on the discharge port below of lump ore feeding bin, the lump ore measuring apparatus is arranged on lump ore metering device below, the lump ore metering device, the lump ore measuring apparatus is connected with lump ore measure control cabinet separately with sinter machine, and the lump ore measuring apparatus also is connected with cooler.Among the present invention, lump ore metering device, lump ore measuring apparatus and sinter machine are connected with lump ore measure control cabinet separately, form interlocked control: cooler machine speed relative fixed, when the cloth speed of sinter machine, when fabric thickness changes, by computer on-the-spot flow signal feedback information is handled, send instruction to lump ore measure control cabinet, lump ore measure control cabinet sends instruction to lump ore metering device, lump ore measuring apparatus again, adjust the speed of lump ore metering device, the blanking amount of lump ore measuring apparatus, realize lump ore in proportion with addition of.
Further,, increase injecting coal quantity, save coke, between blast furnace elevated hopper and blast furnace, be provided with vibratory screening apparatus, and vibratory screening apparatus is positioned at blast furnace elevated hopper below for improving the blast furnace permeability of stock column.
Preferably, cooler is belt or circular cooler.
Among the present invention, wet lump ore is distributed evenly at heat sinter surface in the cooler that is moving, immediately by the heating of from bottom to top high-temperature flue gas, through behind the heated baking of about 30min, can effective elimination table water and partial crystallization water, through screening with fully behind the mixing, forms about 80 ℃, contain the powder rate and be lower than 5% heat mixing ore deposit, this mixes the ore deposit and carries out thorough mixing in the ratio of setting, and participates in blast-furnace burden.
The invention has the beneficial effects as follows: simple in structure, according to different agglomerate production demands, enterprise of relevant unit is through suitable adjustment, use the present invention after, can increase economic efficiency, social benefit, mainly show:
1, recycles (ring type or belt) cooler waste heat;
2, the lump ore that will wet is heated to 300 ℃ earlier, sloughs table water, sloughs partial crystallization water again, be cooled to about 80 ℃ at last again, be lifted into charge-temperature, keep blast furnace furnace roof reasonable temperature between 100～170 ℃, prolonged the life-span of the sack cleaner in the subsequent handling;
3, the preheating lump ore after the baking has effectively been removed a large amount of breezes of former wet lump ore surface adhesion after screening, and screening efficiency improves greatly, reduces powder and goes into stove, improves the blast furnace permeability of stock column, increases injecting coal quantity, saves coke;
4, the simple and reliable practicality of system is easy to interlocked control, for the with practical value and promotional value of the relatively poor Steel Complex of crude fuel condition.
Description of drawings
Fig. 1: agglomerate circular cooler baking lump ore system schematic;
Fig. 2: agglomerate straight-line cooler baking lump ore system schematic.
Embodiment
Below in conjunction with specific embodiment technical scheme of the present invention is done into a ground and introduce in detail, but protection scope of the present invention is not limited thereto.
As shown in Figure 1, by lump ore stockpile 1, lump ore is in proportion with addition of device 2, computer 3, sinter machine 4, circular cooler 5, cold jig 6, blast furnace elevated hopper 7, blast furnace 8 is connected in series successively, described lump ore comprises lump ore feeding bin 21 with addition of device 2 in proportion, lump ore metering device 22, lump ore measuring apparatus 23, lump ore measure control cabinet 24, lump ore metering device 22 is arranged on the discharge port below of lump ore feeding bin 21, lump ore measuring apparatus 23 is arranged on lump ore metering device 22 belows, lump ore metering device 22, lump ore measuring apparatus 23 is connected with lump ore measure control cabinet 24 separately with sinter machine 4, and lump ore measuring apparatus 23 also is connected with circular cooler 5; Between blast furnace elevated hopper 7 and blast furnace 8, be provided with vibratory screening apparatus 9, and vibratory screening apparatus 9 is positioned at blast furnace elevated hopper 7 belows.
During running: lump ore is added on the circular cooler 5 by preset proportion with addition of the wet lump ore of device 2 with lump ore stockpile 1 in proportion even the branch, by the lump ore heating about 30min of process finished product sintering ore bed 150 ~ 400 ℃ of useless flue gases from bottom to top on the circular cooler 5 with humidity, the lump ore that will wet in heat-processed is heated to 300 ℃ earlier, slough table water, slough most of crystal water again; Lump ore reciprocal interlocks with addition of device 2 and parameters such as the cloth speed of sinter machine 4, fabric thickness in proportion, handle by 3 pairs of on-the-spot flow signal feedback information of computer, send instruction to lump ore measure control cabinet 24, lump ore measure control cabinet 24 sends instruction to lump ore metering device 22, lump ore measuring apparatus 23 again, adjust the speed of lump ore metering device 22, the blanking amount of lump ore measuring apparatus 23, realize lump ore in proportion with addition of; Agglomerate on lump ore behind the thermal dehydration and the circular cooler 5 is sent on the cold jig 6, vibrosieve through cold jig 6, be processed to about 80 ℃, contain the powder rate and be lower than 5% hot mixed sintering ore deposit (ratio by production requirement fixed), in screening process, the sludge of the lump ore surface adhesion behind the thermal dehydration and dust are effectively screened out under the vibration of sieve, are transported to the sintered material storehouse with small sintering ore and participate in the batching recycle; Above-mentioned finished product mixed sintering ore deposit (ratio is fixed by production requirement), deliver to blast furnace elevated hopper 7, again after vibratory screening apparatus 9 sieves the powder that goes less than 5mm, add blast furnace 8, assurance blast furnace 8 is normally smelted, and improves blast furnace 8 permeability of stock column, furnace condition anterograde, the volume increase joint is burnt, and energy-saving and emission-reduction have huge social benefit, environmental benefit, economic benefit.
As shown in Figure 2, with the circular cooler 5 among straight-line cooler 5 ' replacement embodiment 1, other is all with embodiment 1.
Claims (3)
1. a sinter cooler toasts the lump ore system, it is characterized in that: by the lump ore stockpile, lump ore is in proportion with addition of device, computer, sinter machine, cooler, cold jig, the blast furnace elevated hopper, blast furnace is connected in series successively, described lump ore comprises the lump ore feeding bin with addition of device in proportion, the lump ore metering device, the lump ore measuring apparatus, lump ore measure control cabinet, the lump ore metering device is arranged on the discharge port below of lump ore feeding bin, the lump ore measuring apparatus is arranged on lump ore metering device below, the lump ore metering device, the lump ore measuring apparatus is connected with lump ore measure control cabinet separately with sinter machine, and the lump ore measuring apparatus also is connected with cooler.
2. sinter cooler as claimed in claim 1 toasts the lump ore system, it is characterized in that: be provided with vibratory screening apparatus between blast furnace elevated hopper and blast furnace, and vibratory screening apparatus is positioned at blast furnace elevated hopper below.
3. sinter cooler as claimed in claim 1 or 2 toasts the lump ore system, and it is characterized in that: cooler is belt or circular cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105852546A CN102021314B (en) | 2010-12-14 | 2010-12-14 | Sinter cooler lump ore braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105852546A CN102021314B (en) | 2010-12-14 | 2010-12-14 | Sinter cooler lump ore braking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102021314A true CN102021314A (en) | 2011-04-20 |
| CN102021314B CN102021314B (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105852546A Expired - Fee Related CN102021314B (en) | 2010-12-14 | 2010-12-14 | Sinter cooler lump ore braking system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680034A (en) * | 2018-04-19 | 2018-10-19 | 芜湖新兴铸管有限责任公司 | The method for generating mixture online using sintering circular-cooler waste heat |
| CN111023845A (en) * | 2019-11-25 | 2020-04-17 | 攀钢集团攀枝花钢钒有限公司 | Utilization method of sinter waste heat of circular cooler |
| CN113720167A (en) * | 2020-05-26 | 2021-11-30 | 宝山钢铁股份有限公司 | Integrated method and system for drying and screening lump ore by using sintering waste heat |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138687A (en) * | 1995-12-06 | 1996-12-25 | 姚怀荣 | High effective reclaiming method and appts. for waste heat of sintering cooling |
| JPH09178352A (en) * | 1995-12-26 | 1997-07-11 | Nippon Steel Corp | Horizontal apparatus and method for sintering |
| JPH10265858A (en) * | 1997-03-26 | 1998-10-06 | Nkk Corp | Production of high quality sintered ore |
| CN201962330U (en) * | 2010-12-14 | 2011-09-07 | 河南济源钢铁(集团)有限公司 | Lump ore baking system of sinter cooler |
-
2010
- 2010-12-14 CN CN2010105852546A patent/CN102021314B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138687A (en) * | 1995-12-06 | 1996-12-25 | 姚怀荣 | High effective reclaiming method and appts. for waste heat of sintering cooling |
| JPH09178352A (en) * | 1995-12-26 | 1997-07-11 | Nippon Steel Corp | Horizontal apparatus and method for sintering |
| JPH10265858A (en) * | 1997-03-26 | 1998-10-06 | Nkk Corp | Production of high quality sintered ore |
| CN201962330U (en) * | 2010-12-14 | 2011-09-07 | 河南济源钢铁(集团)有限公司 | Lump ore baking system of sinter cooler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680034A (en) * | 2018-04-19 | 2018-10-19 | 芜湖新兴铸管有限责任公司 | The method for generating mixture online using sintering circular-cooler waste heat |
| CN111023845A (en) * | 2019-11-25 | 2020-04-17 | 攀钢集团攀枝花钢钒有限公司 | Utilization method of sinter waste heat of circular cooler |
| CN113720167A (en) * | 2020-05-26 | 2021-11-30 | 宝山钢铁股份有限公司 | Integrated method and system for drying and screening lump ore by using sintering waste heat |
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| Publication number | Publication date |
|---|---|
| CN102021314B (en) | 2012-04-18 |
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