CN202032902U - Dust removing and residual heat utilizing system for argon oxygen decarburizing furnace - Google Patents
Dust removing and residual heat utilizing system for argon oxygen decarburizing furnace Download PDFInfo
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- CN202032902U CN202032902U CN2011200334432U CN201120033443U CN202032902U CN 202032902 U CN202032902 U CN 202032902U CN 2011200334432 U CN2011200334432 U CN 2011200334432U CN 201120033443 U CN201120033443 U CN 201120033443U CN 202032902 U CN202032902 U CN 202032902U
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- oxygen decarburization
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- 239000000428 dust Substances 0.000 title claims abstract description 41
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000003546 flue gas Substances 0.000 claims abstract description 51
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000002918 waste heat Substances 0.000 claims abstract description 35
- 238000005261 decarburization Methods 0.000 claims abstract 15
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 239000012717 electrostatic precipitator Substances 0.000 claims description 3
- 230000000423 heterosexual effect Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 14
- 239000004744 fabric Substances 0.000 abstract description 12
- 239000000779 smoke Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 13
- 239000007789 gas Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000007787 solid Substances 0.000 description 9
- 239000003500 flue dust Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 7
- 238000005453 pelletization Methods 0.000 description 6
- 238000010079 rubber tapping Methods 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 241000353097 Molva molva Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
本实用新型涉及氩氧脱碳炉除尘及余热利用系统，在氩氧脱碳炉周围固定安装的烟气导流板，在氩氧脱碳炉上方固定有滑轨，在滑轨上滑动连接有滑架小车，在滑轨的上方设有变流式屋顶烟罩，变流式屋顶烟罩的排气端口连接除尘器的进气端口，除尘器的排气端口连接主风机的进气端口，主风机的排气端口连接排气筒的进气端口；在氩氧脱碳炉的上方、滑轨的下方设有烟气吸口罩，烟气吸口罩的排气端口连接余热锅炉的进气端口，余热锅炉的排气端口连接增压风机的进气端口，增压风机的排气端口通过管道并入变流式屋顶烟罩的排气端口与除尘器的进气端口之间的管道上。本实用新型具有如下优点：冷却的效率高；除尘器不容易烧布袋；实现能源再利用。
The utility model relates to a dust removal and waste heat utilization system for an argon-oxygen decarburization furnace. A flue gas deflector is fixedly installed around the argon-oxygen decarburization furnace, a slide rail is fixed above the argon-oxygen decarburization furnace, and a sliding rail is connected with a The carriage trolley is equipped with a variable-flow roof hood above the slide rail. The exhaust port of the variable-flow roof hood is connected to the intake port of the dust collector, and the exhaust port of the dust collector is connected to the intake port of the main fan. The exhaust port of the main fan is connected to the intake port of the exhaust cylinder; a smoke suction mask is installed above the argon-oxygen decarburization furnace and below the slide rail, and the exhaust port of the smoke suction mask is connected to the intake port of the waste heat boiler , the exhaust port of the waste heat boiler is connected to the intake port of the booster fan, and the exhaust port of the booster fan is merged into the pipeline between the exhaust port of the variable-flow roof hood and the intake port of the dust collector through a pipeline. The utility model has the following advantages: the cooling efficiency is high; the dust collector is not easy to burn the cloth bag; and the energy source can be reused.
Description
Technical field
The utility model relates to a kind of argon oxygen decarburizing furnace dedusting and bootstrap system that is applicable to industries such as metallurgy, building materials, HVAC.
Background technology
Argon oxygen decarburizing furnace abbreviates the AOD stove as, and it comprises: roof cover, expansion chamber, directly mix cold blast sliding valve, spray cooler, blower motor, machine power air cooler, sack cleaner, water-cooled solid matter pipe, electrically operated valve, aiutage and increase blower fan etc.
The roof cover: main effect makes AOD stove a large amount of dust-laden thermal current flue dust that moment produced in processes such as reinforced and tapping, and promptly secondary flue gas stores in the factory building roof truss, is in an organized way taken away in a reasonable time then;
Expansion chamber: be made up of high-alumina brick and insulation material etc., generally becoming square, effect is energy burn off toxic and harmful, but also the effect of first dedusting will be arranged;
Directly mix cold blast sliding valve: the hot flue gas of high-temperature is sneaked into cold wind, to reach the purpose of flue gas cool-down;
Spray cooler:, make high-temperature flue gas be cooled to corresponding unsaturated gas, to reach the purpose of flue gas cool-down in moment by spray into suitable steam water interface particle to high-temperature flue gas;
Blower motor: dust pelletizing system power source;
Machine power air cooler: it is power that cooling device adopts dc fan, utilizes normal temperature air that the elevated temperature heat dust is forced the blowing cooling;
Sack cleaner: be a kind of equipment that can effectively control smoke pollution, utilize a kind of compressed air of in filtrate, jetting periodically to reach and remove filtrate dust stratification purpose;
Water-cooled solid matter pipe: form flue with water cooling tube solid matter form, cooling water in water cooling tube by and with carry out indirect heat transfer at the outer high-temperature flue gas that passes through of pipe and cool off;
Electrically operated valve: the needs for the adjusting of satisfying the dust pelletizing system exhaust gas volumn and switching and system's part maintenance, on each lateral of dust pelletizing system valve should be arranged, it is circular or rectangular-shaped that valve version is generally;
Aiutage: be used for discharging the waste gas after the cleaner purified treatment, or discharge undressed gas;
Increase blower fan: when the system pipe network resistance is big, can on the bigger side pipe road of resistance, be provided with, so not only can reduce the power of system's main air blower, but also can guarantee the effect of bleeding of this lateral line;
The shortcoming of existing AOD stove: 1, directly mix the cold wind mode: the air quantity increase after its cooling is very big, needs to increase the initial cost and the operating cost of system pipeline, blower motor, deduster.2, water-cooled solid matter tube side formula: in its when cooling, need a large amount of cooling waters, and the big need of pipeline weight take and the but auxilliary facility of public affairs of water of allocation theory, are subjected to the place restriction.3, machine power air cooler mode: cooling-down effect is poor, and its input gas temperature should not be greater than 500 ℃, and cooling is limited in scope, and stifled easily ash influences heat exchange and causes system deterioration.4, spray cooler mode: consume cooling water, increase the content of water in the flue gas, not only make the easy dewfall of deduster cloth bag, also cause the cloth bag hydrolysis to lose efficacy easily, very high to the control accuracy requirement of injection flow rate, cooling is limited in scope; 5, the cooling time-histories is long, and the efficient of cooling is low; 6, working power equipment is forced cooling, power consumption; 7, water-cooled solid matter plumber plants and arranges dumbly, and consumptive material is big; 8, the cooling device resistance is big, increases the total kinetic energy of whole dust-removal system; 9, maintenance workload is big, and deduster burns cloth bag easily; 10, mainly be that hot fume fever can utilize, waste, do not produce saturated vapor.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of hot flue dust heat energy can make full use of, produce the argon oxygen decarburizing furnace dedusting and the bootstrap system of saturated vapor, realization reusing of energy source.
The technical scheme that provides according to the utility model, described argon oxygen decarburizing furnace dedusting and bootstrap system, it is included in argon oxygen decarburizing furnace hard-wired smoke deflector on every side, in the argon oxygen decarburizing furnace upper fixed slide rail is arranged, on slide rail, slidely connect the balladeur train dolly, above slide rail, be provided with variable flow type roof petticoat pipe, the exhaust port of variable flow type roof petticoat pipe connects the air inlet port of deduster by pipeline, the exhaust port of deduster is by the air inlet port of pipeline connection main air blower, and the exhaust port of main air blower connects the air inlet port of aiutage by pipeline; Above the argon oxygen decarburizing furnace, slide rail below be provided with flue gas suction inlet cover, the exhaust port of flue gas suction inlet cover connects the air inlet port of waste heat boiler by pipeline, the exhaust port of waste heat boiler connects the air inlet port of booster fan by pipeline, and the exhaust port of booster fan is incorporated into by pipeline on the pipeline between the air inlet port of the exhaust port of variable flow type roof petticoat pipe and deduster.
On the pipeline between the air inlet port of the exhaust port of flue gas suction inlet cover and waste heat boiler, be provided with combustion settling chamber.Described deduster is sack cleaner or electrostatic precipitator.Described deduster is a spark catching type low pressure pulse bag filter.On the pipeline between the air inlet port of the exhaust port of variable flow type roof petticoat pipe and deduster, be provided with electrically operated valve and mixer selector valve successively.The exhaust port of booster fan is incorporated on the pipeline between electrically operated valve and the mixer selector valve by pipeline.Described waste heat boiler is a fin pipe waste heat boiler.
The utlity model has following advantage: 1, Leng Que efficient height; 2, the whole system energy consumption is little; 3, deduster is not easy to burn cloth bag; 4, maintenance workload is little; 5, mainly be that hot flue dust heat energy can make full use of, produce saturated vapor, realize reusing of energy source; Abilities such as 6, the well dynamic tracking of system, feedback, supervision, warning, actual fluctuation is very big, highly stable producing; 7, floor space is little, SR is little.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure: this argon oxygen decarburizing furnace dedusting and bootstrap system, it is included in argon oxygen decarburizing furnace 15 hard-wired smoke deflector 8 on every side, in argon oxygen decarburizing furnace 15 upper fixed slide rail 6 is arranged, on slide rail 6, slidely connect balladeur train dolly 16, above slide rail 6, be provided with variable flow type roof petticoat pipe 1, the exhaust port of variable flow type roof petticoat pipe 1 connects the air inlet port of deduster 4 by pipeline, the exhaust port of deduster 4 is by the air inlet port of pipeline connection main air blower 14, and the exhaust port of main air blower 14 connects the air inlet port of aiutage 5 by pipeline; Above the argon oxygen decarburizing furnace 15, slide rail 6 below be provided with flue gas suction inlet cover 7, the exhaust port of flue gas suction inlet cover 7 connects the air inlet port of waste heat boiler 11 by pipeline, the exhaust port of waste heat boiler 11 connects the air inlet port of booster fan 2 by pipeline, and the exhaust port of booster fan 2 is incorporated into by pipeline on the pipeline between the air inlet port of the exhaust port of variable flow type roof petticoat pipe 1 and deduster 4.
On the pipeline between the air inlet port of the exhaust port of flue gas suction inlet cover 7 and waste heat boiler 11, be provided with combustion settling chamber 9.Described deduster 4 is sack cleaner or electrostatic precipitator.Described deduster 4 is a spark catching type low pressure pulse bag filter.On the pipeline between the air inlet port of the exhaust port of variable flow type roof petticoat pipe 1 and deduster 4, be provided with electrically operated valve 12 and mixer selector valve 3 successively.Described flue gas suction inlet cover 7 is different in nature formula water-cooled solid matter pipe suction inlet cover.The exhaust port of booster fan 2 is incorporated on the pipeline between electrically operated valve 12 and the mixer selector valve 3 by pipeline.Described waste heat boiler 11 is a fin pipe waste heat boiler.
Variable flow type roof petticoat pipe 1: this cover body is not subjected to the plant restriction of apparatus arrangement of furnaceman AOD, do not hinder the technological operation and the maintenance of each production equipment of workshop, with the factory building roof truss in the AOD furnace roof portion scope in addition reasonably enclosing form enclosure, the design of its version should with the building close fit, the side's of making cone or long pyramid, cone wallboard inclination angle is good with 45 ~ 60o, be provided with the water conservancy diversion speeding up plate in the variable flow type roof petticoat pipe 1, " movable parallel linkage speed adjusting plate " is housed on four angles, inhales the speed of catching in order to improve roof petticoat pipe section.Its main effect makes AOD stove a large amount of dust-laden thermal current flue dust that moment produced in processes such as reinforced and tapping, and promptly secondary flue gas stores in the factory building roof truss, is in an organized way taken away in a reasonable time then.Tiny by the dust size taken away, how between 0.1 ~ 8um.In whole technology, play and sneak into warm flue gas and reduce flue-gas temperature;
Mixer selector valve 3: be a kind of the simplest type of cooling, normally in the import setting of deduster 4.To the requirement of temperature, directly sneak into cold wind according to system design and cleaner,, protect whole dust-removal system to reach the purpose of flue gas cool-down to high-temperature flue gas.
Deduster 4: the purification that is exclusively used in the high-temperature flue gas of AOD stove, electric furnace, converter, the hot stove in ore deposit, rotary kiln etc.; preferably adopt spark catching type low pressure pulse bag filter; this flow-guiding type spark capturing device that in the action of low-voltage pulse bag dust collector, disposes; it has effectively captured the crude particle dust in the high-temperature flue gas; play the effect of protection cloth bag; solved the difficult problem that high-temperature smoke often burns out cloth bag; operation steady in a long-term; floor space is little, and flow velocity is little and even, captures the effect height; it is big to reduce temperature; more economical property, emission compliance, cloth bag is not allowed perishable.Technical indicator: flue gas trapping rate 〉=99.5%, post dust concentration≤9mg/Nm
3, smoke dust discharge concentration≤48mg/Nm
3, capture coarse granule 〉=20um, dust remover resistance≤(1500 ~ 1700) pa, the specified rate of filtration≤1.15m/min, the above coarse granule arresting efficiency of 20um 〉=95%, cloth bag life-span 〉=15 month.Principles such as gravity and inertia have been used.After high flue gas enters deduster; go having that remaining spark puts out and coarse granule once being deposited in the ash bucket earlier through the grid frame plates; this grid frame plate welds every box plate mutually with the air channel; its shape is dividing plate as " harmonica-type "; through symmetrical expression deflector in each inlet plenum medium grain again under the secondary settlement and fall in the ash bucket; gas becomes conic section to flow to like this; make each chamber flow velocity evenly also play cushioning effect; to the cloth bag protective effect; this symmetrical expression deflector is into wave shaped form diaphragm; its flue gas is little by resistance, effectively reduces the temperature of flue gas.Filtering by filter bag, cleaned air passes enters in the air-purifying chamber on deduster top, and passes through the off-line valve to the chamber, exhaust passage, goes out deduster at last.Dust on filter bag reaches certain thickness, when dust remover resistance is increased to us and sets value, come earlier one of them chamber off-line valve to cut out to open pulse valve again with PLC control, compressed air is through the winding-up pipe in the gas bag, nozzle to filter bag do moment injection, the vibration and the blowback filter bag, the dust layer fragmentation is come off, dust leaves filter bag, fall into ash bucket, circulate with this.This process is called the chamber off-line deashing, and ash-removal effect is good like this, does not produce contrary air-flow.The box plate of whole device is with pressing shape plate and reinforcement to make, and each chamber separation simultaneously separates, and support increases its bulk strength with the framework scissors that three corner bracing cross forces cause, and meets the blast requirement on the particularly anti-intensity of tumbling.
Aiutage 5: be used for discharging the waste gas after the cleaner purified treatment, or discharge undressed gas.The height of release of aiutage is relevant with gas purging speed and concentration of emission, and the setting of aiutage 5 is relevant with meteorologic factor, orographic condition and the architectural environment etc. in place again, meet discharging standards;
Balladeur train dolly 6: in order to hang different in nature formula water-cooled solid matter pipe suction inlet cover, reinforced the time, it is pulled away, guarantee that furnaceman AOD does reliably; Form: motor reducer, vehicle frame, set of wheels, chain wheel set, double strand chain etc.
Flue gas suction inlet cover 7: adopt different in nature formula water-cooled solid matter pipe suction inlet cover, it has many water cooled pipeline dense arrangement, adopt continuous welding to form water-cooled flue between the solid matter pipe, it is the same that its shape is lined up 90o opposite sex pipe, makes cover mouthful flow velocity 20m/s, makes fire door CO burning more abundant like this, sneaking into cold wind increases, heat-transfer capability is big, and the water route is clear and definite, and is stable;
Smoke deflector 8: make full use of the hot flue gas of the AOD stove principle that makes progress, be not subjected to the cross-flow interference in workshop, generation flue gases such as, tapping reinforced to the AOD stove and melting lead and enter variable flow type roof petticoat pipe, arc light, noise and the radiation etc. that the AOD stove produces when smelting have absorption and block, and the smoke deflector enclosure mainly is made up of metal framework and inside and outside steel plate (liner sound insulation deadener) etc.;
Combustion settling chamber 9: form by high-alumina brick and insulation material etc., the type that generally overarches, effect is an energy burn off toxic and harmful, but also the effect of first dedusting will be arranged;
Waste heat boiler 11: utilize hot flue dust heat energy to produce steam, reach the energy-saving and emission-reduction purpose, waste heat boiler 11 preferably adopts fin pipe waste heat boiler, and during work, heat is made up of fin tube type steam generator and water preheater, steam superheater three parts.Wherein going up next part case fin tube type steam generator is a kind of novel steam raising plant, and its high-frequency welding finned tube comes augmentation of heat transfer as heat exchange element by fin, package unit heat transfer efficiency height, and compact equipment, hot side liquid flow resistance is little.Its basic characteristics are that drum separates with the part of steaming, being heated and vaporizing and in finned tube, finish of water, numerous finned tubes are formed a slice by last next part case, are connected with drum by liaison tube again, and this just makes this covering device be different from the general waste heat boiler of barrel structure up and down.Steaming links to each other with conduit between sleeve pipe and drum, and pipeline can be adjusted length arbitrarily, and on-the-spot flexible arrangement has adapted to the requirement at complicated scene.A complete set of equipment except that water supply system, no running gear, reliable, operating maintenance is convenient, utilizes waste heat institute producing steam to can be used as life vapour;
Electrically operated valve 12: the needs for the adjusting of satisfying the dust pelletizing system exhaust gas volumn and switching and system's part maintenance, on each lateral of dust pelletizing system valve should be arranged, it is circular or rectangular-shaped that valve version is generally, and characteristics are: the gas communication amount is big and gas pressure is low.Realize electrically operated valve control and Long-distance Control automatically;
Electric control room 13: electric and automatic control section is the center of whole dust-removal system, and can whether control section reliably will directly have influence on dust pelletizing system operate as normal, so electrical apparatus control system should satisfy technological requirement, stable and reliable operation, safety economy, simple to operate, easy to maintenance.Unloading ash control, main air blower 14 Electric Machine Control, booster fan 2 Electric Machine Control, waste heat boiler 11 controls and electrically operated valve 12 control parts by height switch board, PLC control, deduster 4 controls, deduster 4 deashings grades and forms.
Principle of the present utility model is:
Argon oxygen decarburizing furnace 15 is when normal the smelting, and flue gas mainly captures (flue gas trapping) by the fire door top; Flue gas is to capture (secondary flue gas capture) by variable flow type roof petticoat pipe 1 in blowing argon gas, reinforced, tapping, control the air quantity size by electrically operated valve on the pipeline 12, flue gas and secondary flue gas smoke evacuation system merged be provided with, its biggest advantage is to utilize the characteristics of very low flue-gas temperature of the lower dust content of secondary flue gas and big air quantity, dilutes and reduces high dirt and the temperature regime in the flue gas one time; At this simultaneously hot flue dust process waste heat boiler 11(fin pipe waste heat boiler),, produce saturated vapor and also collect heat absorption by radiation and convection, can be used for vacuum drying oven and smelt high added value steel, resource reutilization;
Deduster 4(adopts HMD-spark catching type low pressure pulse bag filter): the purification that is exclusively used in the high-temperature flue gas of AOD stove, electric furnace, converter, the hot stove in ore deposit, rotary kiln etc., this flow-guiding type spark capturing device that in the action of low-voltage pulse bag dust collector, disposes, it has effectively captured the crude particle dust in the high-temperature flue gas, play the effect of protection cloth bag, solved the difficult problem that high-temperature smoke often burns out cloth bag; Its course of work is as follows:
When blowing argon gas, reinforced, tapping, flue gas is from passing through variable flow type roof petticoat pipe 1, enter the low-temperature steel pipeline and enter into deduster 4(employing HMD-spark catching type low pressure pulse bag filter), arrive aiutage 5 by main air blower 14, attention will be closed booster fan 2 those road pipeline valves, reinforced the time electrodynamic type balladeur train dolly 16, flue gas suction inlet cover 7 is driven away;
When normal the smelting, at first electrodynamic type balladeur train dolly 16, flue gas suction inlet cover 7 are opened, aim at the fire door and the fixing insulation floss hole of argon oxygen decarburizing furnace 15, produce under the suction function by booster fan 2, fire door elevated temperature heat flue dust will be inhaled in the flue gas suction inlet cover 7 arrive the heat-insulation and heat-preservation flue again, enter waste heat boiler 11, produce and collect saturated vapor; By booster fan 2 to deduster 4, again by main air blower 14 to aiutage 5, attention will be reached certain area (on-the-spot adjustable) to variable flow type roof petticoat pipe 1 that road pipeline valve, dilutes and reduces high dirt and temperature in the flue gas.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200334432U CN202032902U (en) | 2011-01-31 | 2011-01-31 | Dust removing and residual heat utilizing system for argon oxygen decarburizing furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200334432U CN202032902U (en) | 2011-01-31 | 2011-01-31 | Dust removing and residual heat utilizing system for argon oxygen decarburizing furnace |
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| CN202032902U true CN202032902U (en) | 2011-11-09 |
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| CN2011200334432U Expired - Lifetime CN202032902U (en) | 2011-01-31 | 2011-01-31 | Dust removing and residual heat utilizing system for argon oxygen decarburizing furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052856A (en) * | 2011-01-31 | 2011-05-11 | 无锡三达环保科技有限公司 | Dust collecting and waste heat utilizing system for argon oxygen decarburization furnace |
| CN102735071A (en) * | 2012-07-17 | 2012-10-17 | 无锡三达环保科技有限公司 | Waste heat utilizing and dust collecting system for dust collection fan of motor and steam turbine hybrid dragged converter |
| CN106197045A (en) * | 2016-07-15 | 2016-12-07 | 武汉都市环保工程技术股份有限公司 | Afterheat boiler system, rotary hearth furnace high-temperature dust-containing flue gas processing system and method |
-
2011
- 2011-01-31 CN CN2011200334432U patent/CN202032902U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052856A (en) * | 2011-01-31 | 2011-05-11 | 无锡三达环保科技有限公司 | Dust collecting and waste heat utilizing system for argon oxygen decarburization furnace |
| CN102735071A (en) * | 2012-07-17 | 2012-10-17 | 无锡三达环保科技有限公司 | Waste heat utilizing and dust collecting system for dust collection fan of motor and steam turbine hybrid dragged converter |
| CN106197045A (en) * | 2016-07-15 | 2016-12-07 | 武汉都市环保工程技术股份有限公司 | Afterheat boiler system, rotary hearth furnace high-temperature dust-containing flue gas processing system and method |
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