CN100557034C - Blast furnace top dust-collecting equipment - Google Patents
Blast furnace top dust-collecting equipment Download PDFInfo
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- CN100557034C CN100557034C CNB2008100254430A CN200810025443A CN100557034C CN 100557034 C CN100557034 C CN 100557034C CN B2008100254430 A CNB2008100254430 A CN B2008100254430A CN 200810025443 A CN200810025443 A CN 200810025443A CN 100557034 C CN100557034 C CN 100557034C
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Abstract
The invention discloses a kind of blast furnace top dust-collecting equipment, comprise blower fan (1), motor (2), fly-ash separator (5) and airtight exhaust hood (6), this airtight exhaust hood (6) is located at the head of conveyor drive (13), blower fan (1) is driven by motor (2), outlet at airtight exhaust hood (6) is provided with first pipeline (10), the other end of first pipeline (10) is connected the inlet of fly-ash separator (5), above-mentioned blower fan (1), motor (2) and fly-ash separator (5) all are located on the State of Blast Furnace roof panel (11), are provided with second pipeline (4) between the outlet of fly-ash separator (5) and the blower fan (1).The present invention is simple in structure, investment is little and energy consumption is low, directly utilizes the dust that reclaims simultaneously, has realized the resource circulation comprehensive utilization.
Description
Technical field
The present invention relates to a kind of cleaning apparatus, relate in particular to a kind of dust separating blast furnace top dust-collecting equipment of large blast furnace that is used for.
Background technology
The large blast furnace material loading generally adopts endless belt conveyor to the canned material of State of Blast Furnace liftout at present, and when filling with substance because the drop of material is bigger, is again a malleation after the charging in jar, and the gas that therefore contains a large amount of dust is overflowed severe contamination batch can surrounding environment from the batch can opening for feed.
At present, above large blast furnace is adopted the capture of endless belt conveyor dust that distributes when the canned material discharging of State of Blast Furnace liftout and the refining plant following three kinds of modes of employing usually: one) establish dust hood at the conveyor drive head, on establish induced exhaust, this part air quantity is inserted the casting house dust-removal system; Two) establish dust hood at the conveyor drive head, on establish induced exhaust, this part air quantity is inserted the casting house dust-removal system, because pipeline is long, elbow is many, and resistance of ducting loss is big, therefore, divide into a booster fan, this part air quantity is inserted the casting house dust-removal system at the casting house platform; Three) establish dust hood at the conveyor drive head, on establish induced exhaust, this part air quantity is provided with a cover blast furnace furnace roof dust-removal system separately.
Because it all is more than 50 meters that the blast furnace furnace roof produces the dirt pits position, more than several cleaning apparatus pipeline rout complexity, the dedusting pipeline is long, running resistance is big, energy consumption height, easy dust stratification after operation for some time; Investment is big.First kind of dust-removal system be because the resistance of ducting and casting house cleaning shaft are difficult to balance, furnace roof dedusting exhausting weak effect, dust stratification easily after operation for some time; Second kind of cleaning apparatus need be established booster fan, and booster fan is worn and torn by ash-laden gas easily, causes moving that noise is big, air quantity descends, and energy consumption increases, so this form cleaning apparatus poor effect and use few.Though last a kind of dust-removal system that is provided with separately, dust removing effects can guarantee, the pipeline complexity of dust-removal system is invested greatly, and operation power consumption height needs after dust reclaims could utilize the cost recovery height after transhipment, the processing.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of simple in structure, reduce investment outlay and blast furnace top dust-collecting equipment that energy consumption is low.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of blast furnace top dust-collecting equipment, comprise blower fan, motor, fly-ash separator and airtight exhaust hood, this airtight exhaust hood is located at the head of conveyor drive, blower fan is by electric motor driving, outlet at airtight exhaust hood is provided with first pipeline, the other end of first pipeline is connected the inlet of fly-ash separator, and above-mentioned blower fan, motor and fly-ash separator all are located on the State of Blast Furnace roof panel, is provided with second pipeline between the outlet of fly-ash separator and the blower fan.
Ash bucket exit at described fly-ash separator is provided with unloading valve, is provided with ash-unloading tube on unloading valve, and the outlet of ash-unloading tube communicates with the charging of blast furnace jar.
On described first pipeline, be provided with volume damper.
Lower end at described motor is provided with vibration damping holder.
Compared with prior art, the technology of the present invention has the following advantages:
1, the present invention simple in structure, reduce investment outlay and energy consumption low.Compared with prior art, because the present invention is placed on top dust-collecting equipment on the State of Blast Furnace roof panel, make the pipeline of whole dust-removal system shorten greatly, the dust-removal system resistance is 1500Pa only; And other forms of furnace roof dedusting pipeline reaches more than 150 meters, and elbow is many, and the pipeline rout complexity is more than the dust-removal system resistance 5500Pa.Because pipeline is short, what system leaked out and considers lacks, and the dedusting air quantity only needs other forms of 1/2.By above two optimizations, greatly reduced the energy consumption of total system, total system power consumption 18kw only is 1/4～1/10 of other dedusting forms, therefore selects little blower fan of power and motor just can meet the needs of production, and has saved investment.
2, the present invention can directly recycle dust, save energy.In the present invention, owing to be connected with ash-unloading tube at the ash bucket place of fly-ash separator, therefore when dust accumulates certain thickness on the filter bag of fly-ash separator machine, by electric control system controls fly-ash separator online ash removal, ash under clear drops in the dust collector ash hopper, when dust stratification reaches certain material level in the ash bucket, unloading valve is opened, ash-unloading tube falls into the charging of blast furnace jar, because the collected dust main component of fly-ash separator is available blast furnace raw materials such as agglomerate, therefore, the present invention has realized being recycled of dust, has saved the energy; Simultaneously, because the charging of blast furnace jar is encloses container, so the process that dust falls into the charging of blast furnace jar can not produce the secondary dust from flying, so just realized sealing, exhausting, the dust removing effects enhancing of whole process.
3, the present invention is easy to operate, and maintenance workload is little.Because pipeline is very short, pipeline can dust stratification, stable and reliable operation.The dust-removal system of other pipelines length is easy to take place the pipeline dust stratification, necessary periodic cleaning, otherwise meeting increases the decline of exhausting amount, dust removing effects decline even inefficacy owing to the pipeline dust stratification cause the dust-removal system resistance.
4, the present invention is because blower fan, motor adopt the integral vibration damping bearing, therefore can be placed on the blast furnace platform and very little to the influence of platform load.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the vertical view of blast furnace top dust-collecting equipment of the present invention.
Fig. 2 is that the A of blast furnace top dust-collecting equipment shown in Figure 1 is to view.
Fig. 3 is that the B of blast furnace top dust-collecting equipment shown in Figure 1 is to view.
Embodiment
A kind of blast furnace top dust-collecting equipment, comprise blower fan 1, motor 2, fly-ash separator 5 and airtight exhaust hood 6, this airtight exhaust hood 6 is located at the head of conveyor drive 13, blower fan 1 is driven by motor 2, outlet at airtight exhaust hood 6 is provided with first pipeline 10, the other end of first pipeline 10 is connected the inlet of fly-ash separator 5, above-mentioned blower fan 1, motor 2 and fly-ash separator 5 all are located on the State of Blast Furnace roof panel 11, be provided with second pipeline 4 between the outlet of fly-ash separator 5 and the blower fan 1, ash bucket exit at described fly-ash separator 5 is provided with unloading valve 8, on unloading valve 8, be provided with ash-unloading tube 9, and the outlet of ash-unloading tube 9 communicates with charging of blast furnace jar 12, on described first pipeline 10, be provided with volume damper 7, be provided with vibration damping holder 3 in the lower end of described motor 2.
In this enforcement, fly-ash separator 5 is weldingly fixed on the State of Blast Furnace roof panel 11, the compressed air line supply that the pressurized air that fly-ash separator 5 needed deashings are used is provided with by State of Blast Furnace roof panel 11.
Principle of work of the present invention is as follows: the airtight exhaust hood 6 that an integral body is set at the head of the main conveyor drive of blast furnace furnace roof material loading, by the volume damper 7 and first pipeline 10, the volume of smoke that produces during with the conveyor drive discharging sucks in the fly-ash separator 5, fly-ash separator 5 is located on the State of Blast Furnace roof panel 11, ash-laden gas is after fly-ash separator 5 purifies, by second pipeline 4 and blower fan 1 discharging, because the main component of fly-ash separator 5 collected dust is utilizable blast furnace raw materials such as agglomerate, therefore, be input to dust in the charging of blast furnace jar 12 and blast furnace raw material enters blast furnace ironmaking together by ash-unloading tube 9.
Working process of the present invention is as follows: when blast furnace feeding master conveyor drive feed, motor 2 starts, and blower fan 1 operation forms negative pressure in the sealing exhaust hood 6 at conveyor drive head place, dust is not outwards distributed.The dusty gas that extracts discharging after fly-ash separator 5 filters, thus reach the purification purpose.When accumulating certain thickness on the filter bag of dust in fly-ash separator machine 5, by electric control system controls fly-ash separator 5 online ash removal, ash under clear drops in the dust collector ash hopper, when dust stratification reaches high charge level in the ash bucket, the unloading valve 8 at ash discharging pipe place is opened, and ash-unloading tube 9 falls into the charging of blast furnace jar, and the charging of blast furnace jar is an encloses container, the secondary dust from flying can be do not produced, whole process sealing, exhausting, good dedusting effect can be guaranteed like this.And the present invention is simple in structure, and the sealing exhausting is effective, does not connect dust-removal system after not needing, dedusting on the spot, operate steadily, reliable operation, easy and simple to handle, maintenance load is little, and energy consumption is low, invest for a short time,, realize the resource circulation comprehensive utilization by direct utilization to dust.
Claims (3)
1, a kind of blast furnace top dust-collecting equipment, comprise blower fan (1), motor (2), fly-ash separator (5) and airtight exhaust hood (6), this airtight exhaust hood (6) is located at the head of conveyor drive (13), blower fan (1) is driven by motor (2), outlet at airtight exhaust hood (6) is provided with first pipeline (10), the other end of first pipeline (10) is connected the inlet of fly-ash separator (5), it is characterized in that: above-mentioned blower fan (1), motor (2) and fly-ash separator (5) all are located on the State of Blast Furnace roof panel (11), be provided with vibration damping holder (3) in the lower end of motor (2), be provided with second pipeline (4) between the outlet of fly-ash separator (5) and the blower fan (1).
2, blast furnace top dust-collecting equipment according to claim 1, it is characterized in that: be provided with unloading valve (8) in the ash bucket exit of described fly-ash separator (5), on unloading valve (8), be provided with ash-unloading tube (9), and the outlet of ash-unloading tube (9) communicates with charging of blast furnace jar (12).
3, blast furnace top dust-collecting equipment according to claim 1 is characterized in that: be provided with volume damper (7) on described first pipeline (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100254430A CN100557034C (en) | 2008-04-28 | 2008-04-28 | Blast furnace top dust-collecting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100254430A CN100557034C (en) | 2008-04-28 | 2008-04-28 | Blast furnace top dust-collecting equipment |
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| Publication Number | Publication Date |
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| CN101265509A CN101265509A (en) | 2008-09-17 |
| CN100557034C true CN100557034C (en) | 2009-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2008100254430A Active CN100557034C (en) | 2008-04-28 | 2008-04-28 | Blast furnace top dust-collecting equipment |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086477B (en) * | 2009-12-08 | 2012-07-18 | 鞍钢集团矿业公司 | Discharging and dedusting equipment for blast furnace ore tank and dedusting method thereof |
| CN114836589B (en) * | 2022-05-09 | 2023-10-31 | 宝信软件(山西)有限公司 | Automatic control method of ash discharging system of blast furnace dust remover |
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| CN101265509A (en) | 2008-09-17 |
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Assignee: Huatian Nanjing Engineering & Technology Corporation, MCC Assignor: Zhongye Huatian Engineering Technology Co., Ltd. Contract record no.: 2011320000561 Denomination of invention: Blast furnace top dust-collecting equipment Granted publication date: 20091104 License type: Exclusive License Open date: 20080917 Record date: 20110415 |