CN204177227U - The gas cleaning of AOD refining furnace and heat energy utilization system - Google Patents
The gas cleaning of AOD refining furnace and heat energy utilization system Download PDFInfo
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- CN204177227U CN204177227U CN201420650914.8U CN201420650914U CN204177227U CN 204177227 U CN204177227 U CN 204177227U CN 201420650914 U CN201420650914 U CN 201420650914U CN 204177227 U CN204177227 U CN 204177227U
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- refining furnace
- flue gas
- heat energy
- energy utilization
- flue
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses the gas cleaning of AOD refining furnace and heat energy utilization system, comprise refining furnace, also comprise the table kuppe covering on refining furnace outside, described table kuppe upper end is communicated with roof circulation cover; Described roof kuppe is communicated with pulsed jet cloth filter by flue gas pipeline; Flue gas to be circulated expansion chamber, pre-heat reclamation device, secondary settlement room and a pulsed jet cloth filter by flue by exhaust opening on refining furnace successively; The air outlet of pulsed jet cloth filter is communicated with aiutage by air draft pipeline.AOD refining furnace flue gas can trap and purify by system of the present utility model completely, by the efficiency utilization of smoke heat energy and conversion, reduce AOD refining furnace flue gas to the impact of atmospheric environment, make full use of the heat energy of flue gas while meeting the relevant environmental protection policy of country, there is safety, effective, economic, energy-conservation feature.
Description
Technical field
The utility model relates to a kind of industrial flue gas cleaning and heat energy utilization equipment, is specifically related to the gas cleaning of a kind of AOD refining furnace and heat energy utilization system.
Background technology
Perfect along with AOD refining techniques, newly-built a large amount of large-scale AOD refining furnace in recent years, its oxygen supply mechanism is also blown side by furnace bottom and is developed to top and bottom complex blowing, oxygen consuming amount significantly increases, now in AOD refining furnace, fume amount significantly increases, in conjunction with correlation computations and statistics, in AOD refining furnace, exhaust gas volumn reaches 400 ~ 600Nm3/h.t, temperatures as high 1600 DEG C, and containing a large amount of CO and oxide, if do not take effective measures, pollution to a certain degree certainly will be caused to ambient atmosphere environment, waste a large amount of heat energy and resource simultaneously.
At present in the design of the smoke and dust purifier of AOD refining furnace, because AOD refining furnace flue dust contains a large amount of CO gas, the design means that usual employing first and second flue dust is separately administered, wherein for the design of the improvement employing electric precipitation of a flue dust, to reclaim CO, adopt dry method negative pressure filtration bag-type dust removal system for secondary smoke.Design technology like this is complicated, equipment is various, system investments and operating cost all relatively high, economic worth is not high.
Utility model content
The utility model technical issues that need to address are just the defect overcoming prior art, provide the gas cleaning of a kind of AOD refining furnace and heat energy utilization system.AOD refining furnace flue gas can trap and purify by this system completely, by the efficiency utilization of smoke heat energy and conversion, reduce AOD refining furnace flue gas to the impact of atmospheric environment, make full use of the heat energy of flue gas while meeting the relevant environmental protection policy of country, there is safety, effective, economic, energy-conservation feature.
For solving the problem, the utility model employing technical scheme is:
A kind of AOD refining furnace gas cleaning and heat energy utilization system, comprise refining furnace, also comprise the table kuppe covering on refining furnace outside, described table kuppe upper end is communicated with roof circulation cover; Described roof kuppe is communicated with pulsed jet cloth filter by flue gas pipeline; The flue gas that refining furnace discharges by table kuppe is collected, and by roof circulation cover, the flue gas that refining furnace overflows is delivered to pulsed jet cloth filter and processes;
Flue gas to be circulated expansion chamber, pre-heat reclamation device, secondary settlement room and a pulsed jet cloth filter by flue by exhaust opening on refining furnace successively; The flue gas that refining furnace burning produces passes through flue, at a sedimentation indoor settlement big dust particle, then flue gas enters waste-heat recovery device and carries out heat recovery, effectively utilizes the heat in flue gas, improve fuel and the heating efficiency of refining furnace, realize effect of energy-conserving and environment-protective; Secondary settlement room is sedimentation dust again, finally by booster fan, flue gas is imported pulsed jet cloth filter, makes it process dust residual in flue gas.
The air outlet of pulsed jet cloth filter is communicated with aiutage by air draft pipeline.Flue gas after process is discharged by aiutage, realizes, to effective process of flue gas, reaching the requirement of environment protection emission.
Preferably, the flue between secondary settlement room and pulsed jet cloth filter is provided with booster fan.Because pulsed jet cloth filter produces resistance to flow of flue gas, booster fan is set and can provides power and pressure to flow of flue gas, make flue gas efficiently quickly through, improve fume treatment efficiency.
Preferably, air draft pipeline is provided with the fan station for providing power for air draft.The air draft pipeline of pulsed jet cloth filter arranges fan station, on the one hand for the outflow of flue gas in deduster provides negative pressure, improves flue gas circulation and processing speed; On the other hand for the discharge of flue gas in aiutage provides power.
Preferably, the dust that the below of pulsed jet cloth filter is provided with for collecting dust concentrates case.Dust concentrates case to be that the device collecting dust discharged by pulsed jet cloth filter, ensures that pulsed jet cloth filter is to effective discharge of dust, improves efficiency of dust collection.
Preferably, dust is concentrated case and dust to transport outward equipment to coordinate.Dust outward transport equipment is by the device of the dust transhipment of collecting, and can be the equipment such as haulage vehicle.
Preferably, a flue between expansion chamber and waste-heat recovery device is utilidor.In pre-heat reclamation device, the heat in flue gas is recycled, so utilidor will be adopted at pipeline, to reduce flue gas heat scattering and disappearing in the process of circulation, improve heating efficiency.
Preferably, the flue that refining furnace is connected with expansion chamber is utilidor.Scattering and disappearing of flue gas heat can be reduced equally, improve flue gas heat and recycle efficiency, realize the efficiency utilization to energy.
Preferably, utilidor is steel sleeve steel composite thermal-insulating pipe.Steel sleeve steel composite thermal-insulating pipe can carry out effectively heat insulation to the flue gas of high temperature.
The DXLMC type low pressure pulse bag filter that pulsed jet cloth filter adopts Dongxiong Heavy Electric Furnace Co., Ltd., Wuxi City to produce.
The course of work of the utility model AOD refining furnace gas cleaning and heat energy utilization system is: produce flue gas during refining furnace work, and the flue gas that refining furnace outwards overflows transfers to pulsed jet cloth filter after being collected by table kuppe and roof circulation cover and carries out dust removal process; The flue gas that refining furnace combustion directly produces is delivered to an expansion chamber by flue, sedimentation is carried out to materials such as the big dust particles in flue gas, then flue gas passes into waste-heat recovery device and recycles the heat in flue gas, and then by secondary settlement room, secondary settlement is carried out to flue gas, last flue gas is sent into pulsed jet cloth filter through booster fan and is carried out dedusting, and the flue gas after process is discharged by aiutage.
Advantage of the present utility model and beneficial effect are:
1. the fume exhausting type designed in conjunction with the combustion characteristics of AOD refining furnace and fume treatment, heat recovery system, high efficiente callback can utilize heat, efficient smoke treatment dust;
2. the trapping for AOD refining furnace secondary flue gas adopts roof circulation cover, the trapping of all secondary flue gas in AOD refining furnace fusion process can be realized, supporting table kuppe is to reduce flue gas range of scatter simultaneously, and effective reduction system required process air quantity, reduces system installed power;
3. the cooling for an AOD refining furnace flue gas adopts waste-heat recovery device, can in recovered flue gas more than 60% heat, realize the comprehensive utilization of the energy, improve the utilization ratio of fuel combustion and heat, realize effect of energy-conserving and environment-protective;
4. by once and the setting of secondary settlement room, the available protecting normal operation of the equipment such as waste-heat recovery device and booster fan, improves fume treatment efficiency and stable equipment operation;
5. waste-heat recovery device rear is provided with booster fan, to balance the high resistance of waste-heat recovery device, reduces the installed power of system main air blower, guarantee that fume treatment processing efficient is stable and carry out;
6. system of the present utility model adopts full combustion method dry dust removal technique, efficiently can process flue dust, effective recycling heat, have splendid result of use, can bring huge economic benefit and environmental benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model AOD refining furnace gas cleaning and heat energy utilization system.
Fig. 2 is part A partial enlarged drawing in Fig. 1.
Fig. 3 is part B partial enlarged drawing in Fig. 1.
Fig. 4 is the processing technological flow figure of the utility model AOD refining furnace gas cleaning and heat energy utilization system.
In figure: 1, roof circulation cover; 2, flue; 3, pulsed jet cloth filter; 4, fan station; 5, aiutage; 6, dust concentrates case; 7, booster fan; 8, secondary settlement room; 9, waste-heat recovery device; 10, an expansion chamber; 11, refining furnace; 12, table kuppe.
Detailed description of the invention
The following example will further illustrate the utility model.
embodiment 1
The utility model adopts technical scheme to be the gas cleaning of a kind of AOD refining furnace and heat energy utilization system, and comprise refining furnace 11, also comprise the table kuppe 12 covering on refining furnace 11 outside, described table kuppe 12 upper end is communicated with roof circulation cover 1; Described roof kuppe is communicated with pulsed jet cloth filter 3 by flue gas pipeline; The flue gas that refining furnace 11 discharges is collected by table kuppe 12, by roof circulation cover 1, the flue gas that refining furnace 11 overflows is delivered to pulsed jet cloth filter 3 and processes;
Flue gas to be circulated expansion chamber 10, pre-heat reclamation device, secondary settlement room 8 and a pulsed jet cloth filter 3 by flue 2 by exhaust opening on refining furnace 11 successively; The flue gas that refining furnace 11 burning produces is by flue 2, sedimentation big dust particle in an expansion chamber 10, then flue gas enters waste-heat recovery device 9 and carries out heat recovery, effectively utilize the heat in flue gas, improve fuel and the heating efficiency of refining furnace 11, realize effect of energy-conserving and environment-protective; Secondary settlement room 8 is sedimentation dust again, finally by booster fan 7, flue gas is imported pulsed jet cloth filter 3, makes it process dust residual in flue gas.
The air outlet of pulsed jet cloth filter 3 is communicated with aiutage 5 by air draft pipeline.Flue gas after process is discharged by aiutage 5, realizes, to effective process of flue gas, reaching the requirement of environment protection emission.
Flue 2 between secondary settlement room 8 and pulsed jet cloth filter 3 is provided with booster fan 7.Because the pulsed jet cloth filter 3 pairs of flow of flue gas produce resistances, booster fan 7 is set and can provides power and pressure to flow of flue gas, make flue gas efficiently quickly through, improve fume treatment efficiency.Air draft pipeline is provided with the fan station 4 for providing power for air draft.The air draft pipeline of pulsed jet cloth filter 3 arranges fan station 4, on the one hand for the outflow of flue gas in deduster provides negative pressure, improves flue gas circulation and processing speed; On the other hand for the discharge of flue gas in aiutage 5 provides power.
The below dust be provided with for collecting dust of pulsed jet cloth filter 3 concentrates case 6.Dust is concentrated case 6 and dust to transport outward equipment to coordinate.Dust concentrates case 6 to be that the device collecting dust discharged by pulsed jet cloth filter 3, ensures effective discharge of pulsed jet cloth filter 3 pairs of dust, improves efficiency of dust collection.Dust outward transport equipment is by the device of the dust transhipment of collecting, and can be haulage vehicle equipment.
Flue 2 between an expansion chamber 10 and waste-heat recovery device 9 is utilidor.The flue 2 that refining furnace 11 is connected with expansion chamber 10 is utilidor.Utilidor is steel sleeve steel composite thermal-insulating pipe.In pre-heat reclamation device, the heat in flue gas is recycled, so utilidor will be adopted at pipeline, to reduce flue gas heat scattering and disappearing in the process of circulation, improve heating efficiency.Steel sleeve steel composite thermal-insulating pipe can carry out effectively heat insulation to the flue gas of high temperature.
The DXLMC type low pressure pulse bag filter 3 that pulsed jet cloth filter 3 adopts Dongxiong Heavy Electric Furnace Co., Ltd., Wuxi City to produce.This model sack cleaner adopts cold pressing forming process, rational in infrastructure, aesthetic in appearance, voltage withstand class is high, and air leak rate of air curtain is little, failure rate is low, can be competent at the requirement of fume treatment.
Last it is noted that obviously, above-described embodiment is only for the utility model example is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection domain of the present utility model.
Claims (8)
- The gas cleaning of 1.AOD refining furnace and heat energy utilization system, comprise refining furnace, it is characterized in that, also comprises the table kuppe covering on refining furnace outside, and described table kuppe upper end is communicated with roof circulation cover; Described roof kuppe is communicated with pulsed jet cloth filter by flue gas pipeline;Flue gas to be circulated expansion chamber, pre-heat reclamation device, secondary settlement room and a pulsed jet cloth filter by flue by exhaust opening on refining furnace successively;The air outlet of pulsed jet cloth filter is communicated with aiutage by air draft pipeline.
- 2. AOD refining furnace gas cleaning as claimed in claim 1 and heat energy utilization system, it is characterized in that, the flue between secondary settlement room and pulsed jet cloth filter is provided with booster fan.
- 3. AOD refining furnace gas cleaning as claimed in claim 2 and heat energy utilization system, it is characterized in that, air draft pipeline is provided with the fan station for providing power for air draft.
- 4. AOD refining furnace gas cleaning as claimed in claim 3 and heat energy utilization system, it is characterized in that, the dust that the below of pulsed jet cloth filter is provided with for collecting dust concentrates case.
- 5. AOD refining furnace gas cleaning as claimed in claim 4 and heat energy utilization system, is characterized in that, dust is concentrated case and dust to transport outward equipment to coordinate.
- 6. AOD refining furnace gas cleaning as claimed in claim 5 and heat energy utilization system, it is characterized in that, a flue between expansion chamber and waste-heat recovery device is utilidor.
- 7. AOD refining furnace gas cleaning as claimed in claim 6 and heat energy utilization system, is characterized in that, the flue that refining furnace is connected with expansion chamber is utilidor.
- 8. AOD refining furnace gas cleaning as claimed in claims 6 or 7 and heat energy utilization system, it is characterized in that, utilidor is steel sleeve steel composite thermal-insulating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420650914.8U CN204177227U (en) | 2014-11-04 | 2014-11-04 | The gas cleaning of AOD refining furnace and heat energy utilization system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420650914.8U CN204177227U (en) | 2014-11-04 | 2014-11-04 | The gas cleaning of AOD refining furnace and heat energy utilization system |
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| CN204177227U true CN204177227U (en) | 2015-02-25 |
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| CN201420650914.8U Expired - Fee Related CN204177227U (en) | 2014-11-04 | 2014-11-04 | The gas cleaning of AOD refining furnace and heat energy utilization system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406416A (en) * | 2014-11-04 | 2015-03-11 | 无锡东雄重型电炉有限公司 | Flue gas purification and heat energy utilization system of AOD (Argon Oxygen Decarburization) refining furnace |
-
2014
- 2014-11-04 CN CN201420650914.8U patent/CN204177227U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406416A (en) * | 2014-11-04 | 2015-03-11 | 无锡东雄重型电炉有限公司 | Flue gas purification and heat energy utilization system of AOD (Argon Oxygen Decarburization) refining furnace |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20181104 |