CN206621945U - A kind of aluminum melting furnace smoke wet electric dust-removing cleaning system - Google Patents
A kind of aluminum melting furnace smoke wet electric dust-removing cleaning system Download PDFInfo
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- CN206621945U CN206621945U CN201720342570.8U CN201720342570U CN206621945U CN 206621945 U CN206621945 U CN 206621945U CN 201720342570 U CN201720342570 U CN 201720342570U CN 206621945 U CN206621945 U CN 206621945U
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- flue gas
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Abstract
It the utility model is related to a kind of aluminum melting furnace smoke wet electric dust-removing cleaning system.The system sets fume trap cover in aluminium melting furnace stove and fire door flue gas is collected, flue gas after collecting enters flue gas heat-exchange unit by total pipeline, the flue gas that heat exchanger comes out enters wet electrical dust precipitator from bottom, the wet electrical dust precipitator includes housing, wet electric section is set in housing, spray section is set in wet electric pars infrasegmentalis；Spray column drip pan 1 is set in housing bottom, the wet electric section is made up of anode system 6, cathod system 7, and the spray section top sets spraying cooling system 3, and bottom sets air flow method system 4；The bottom of spray column drip pan 1 sets water treatment system.Wet electrical dust precipitator is introduced into aluminium melting high-temperature flue gas handling process by the system, is replaced original dry dedusting technology with wet dedusting technology, is greatly reduced the resistance and energy consumption of whole dust pelletizing system, and cost of investment, operating cost are low, efficiency of dust collection is high, energy stable and high effective operation, it is ensured that production.
Description
Technical field
The utility model belongs to aluminum melting furnace smoke wet electric dust-removing purification techniques field, and in particular to a kind of aluminium melting furnace
Flue gas wet electric dust-removing cleaning system, it is mainly used in aluminium melting processing and similar industry filed of flue gas purification.
Background technology
Aluminium melting furnace is generally used for the aluminium refinery practice before aluminium alloy processing enterprise, by remelted aluminum ingot, electrolytic aluminium aluminium liquid or
Aluminium scrap reheats fusing, and form is mostly gas furnace or oil burner, also has part to use main frequency furnace.Produced by aluminium melting furnace
Into the molten aluminium alloy for the various trades mark for meeting to require, the raw material as follow-up wrought aluminium products.
Every smelting furnace is produced by the cycle, and the smoke evacuation parameter of each smelting furnace is also with mechanical periodicity, needed for dust pelletizing system
Exhaust smoke level, exhaust gas temperature be superimposed fluctuation under the production status of each smelting furnace, dust contained flue gas dust concentration is generally 300~
400mg/Nm3, it is maximum up to 3g/Nm3。
Fuel combustion products are removed in flue gas（CO2、H2O, ash grades）Outside, the powdery chlorate that also phase puts into after being melted down
Coverture, and caused a small amount of Cl in refining process2, the acid ingredient such as HCl.
Water content is larger in flue gas when fuel is natural gas, and flue gas dew point temperature is higher, when flue-gas temperature is reduced to flue gas
When below dew-point temperature, dew condensation phenomenon can be occurred in pipeline or equipment inner wall, the acidic materials in flue gas can be dissolved in water, become rotten
Corrosion acid solution, corrosion is produced to steel systeming equipment and pipeline.
Existing aluminium melting dedusting typically uses dry-method bag-type deduster, when flue-gas temperature control is within the scope of suitable temperature
When, sack cleaner can effectively control dust emission, make dust emission up to standard, but can not remove other acidity in flue gas
Gas.
The characteristics of due to production technology, the control to flue-gas temperature are relatively difficult, it is easy to temperature fluctuation occur to dew point
More than the temperature that sack cleaner can be born below or commonly, harm is produced to the normal operation of sack cleaner, that is, revealed
Point acid corrosion, condensation paste bag or burning bag phenomenon.
Wet electrical dust precipitator belongs to the dedusting technology of mature and reliable, is generally used for the depth dedusting demisting work of end flue gas
Skill, it can effectively remove the pollutants such as small size particle, slurry drops, especially aerosol, Hg and various heavy.
Vertical honeycomb tubular type wet electrical dust precipitator uses vertical structure, may be disposed at and integrative-structure is formed on spray column, section
About total figure is taken up an area.Spraying layer is set in spray column bottom, just dedusting is carried out to flue gas, and forms saturation wet flue gas, therefore dust
In the case of concentration height, stable and high effective operation can also be realized, and resistance is low, efficiency high.
The content of the invention
The purpose of this utility model is the deficiency existing for existing aluminum melting furnace smoke purification method, there is provided a kind of aluminium melts
Furnace flue gas wet electric dust-removing cleaning system, substitutes original dry dedusting technology, realizes stable operation and qualified discharge.
A kind of aluminum melting furnace smoke wet electric dust-removing cleaning system, fume trap cover is set in aluminium melting furnace stove and fire door flue gas
It is collected, the flue gas after collecting enters flue gas heat-exchange unit by total pipeline, and the flue gas that heat exchanger comes out enters wet type from bottom
Electric cleaner, the wet electrical dust precipitator include housing, and wet electric section is set in housing, and spray section is set in wet electric pars infrasegmentalis；
Spray column drip pan is set in housing bottom, the wet electric section is made up of anode system, cathod system, and the spray section top is set
Spraying cooling system is put, bottom sets air flow method system；The spray column drip pan bottom sets water treatment system；Water process
System is handled and recycled to shower water.
Aluminium melting furnace fire door and inner flue gas of the stove are first carried out first time hybrid cooling by the system, are carried out subsequently into heat exchanger
The dust in flue gas is handled by wet electrical dust precipitator after second of cooling, wherein, into the cigarette of wet electrical dust precipitator
Dedusting at the beginning of gas need to further spray water simultaneously is cooled to saturated flue gas；Water after spray enters water treatment system and administers Posterior circle utilization；
Clean flue gas after wet electrical dust precipitator processing provides power by blower fan, then passes through chimney qualified discharge.
The anode system is made up of anode tube module, the cathod system by high frequency electric source, cathode frame, cathode line,
The cathode line is provided with take-up device.
Mixer selector valve is set on the total pipeline, by being mixed into cold wind flue gas cool-down can be ensured to 250 DEG C or so；Flue gas heat exchange
Device is used for mixed flue collector flue gas cool-down to 150 DEG C or so.
The top of the housing of the wet electrical dust precipitator sets hot blast closed system.
The water treatment system water treatment system by acid pump, clarified water pump, sewage pump, chemicals feeder, clear water reserviors, neutralization pond and
Mummifying pool is formed, and clarified water pump is provided between the clear water reserviors and wet electrical dust precipitator, is provided between the neutralization pond and mummifying pool
Sewage pump.
Smoke processing system can handle the flue gas of more aluminium melting furnaces simultaneously, and switching valve is provided with flue system, can
According to production needs, aluminium melting furnace quantity of the regulation into flue gas system.
The beneficial effects of the utility model are：Wet electrical dust precipitator is introduced aluminium melting high-temperature flue gas handling process by the system
In, original dry dedusting technology is replaced with wet dedusting technology, greatly reduces the resistance and energy consumption of whole dust pelletizing system, and throw
It is low to provide cost, operating cost, efficiency of dust collection is high, energy stable and high effective operation, it is ensured that production.
Brief description of the drawings
Fig. 1 is a kind of aluminum melting furnace smoke wet electric dust-removing cleaning system process chart.
Fig. 2 is the structural representation of wet electrical dust precipitator.
1- spray column drip pans；2- inlet pipelines；3- spraying cooling systems；4- air flow method systems；5- take-up devices；6-
Anode system；7- cathod systems；8- hot blast closed systems；9- outlet conduits.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings.Below by
The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that new to this practicality
The limitation of type.
As shown in figure 1, a kind of aluminum melting furnace smoke wet electric dust-removing cleaning system, by setting fume trap cover and pipeline to aluminium
In smelting furnace and fire door flue gas is collected, and two strands of flue gases first carry out mixed heat transfer cooling.Mixed flue gas enters back into cigarette
Gas heat exchanger carries out reducing temperature twice, and the flue gas after heat exchanger is normally controlled in 150 DEG C or so, passes through flue gas in specific implementation
Amount and temperature carry out heat exchange area calculating, accomplish that temperature is precisely controlled.
The flue gas that heat exchanger comes out enters spray-wet electric integral type wet dedusting tower from bottom inlet pipeline 2 and first sprays and wash
After washing cooling absorption, turn into saturation wet flue gas, enter wet type entrainment of the dust of substantial amounts of drop, droplet and washed removing
Dedusting is carried out in electric cleaner.
The wet electrical dust precipitator includes housing, and wet electric section is set in housing, and spray section is set in wet electric pars infrasegmentalis；
Housing bottom sets spray column drip pan 1, and the wet electric section is made up of anode system 6, cathod system 7, the spray section top
Spraying cooling system 3 is set, and bottom sets air flow method system 4；The bottom of spray column drip pan 1 sets water treatment system.
The water treatment system is by acid pump, clarified water pump, sewage pump, chemicals feeder, clear water reserviors, neutralization pond and mummifying pool group
Into being provided with clarified water pump between the clear water reserviors and wet electrical dust precipitator, sewage pump be provided between the neutralization pond and mummifying pool.
The anode system 6 is made up of anode tube module, and anode tube is regular hexagon, inscribed circle diameter in 300-350mm,
Anode length of tube is 3000-6000mm, and material is fiberglass.
The cathod system 7 is provided with take-up device by high frequency electric source, cathode frame, cathode line, the cathode line.High frequency
Power supply type selecting determines according to wet electrical dust precipitator saturated flue gas dust content and removal efficiency requirement is entered；Cathode frame and pole
Line uses corrosion-resistant material, and steel shell structure does preservative treatment；Cathode line uses serration type helix or fish-bone pin rigid line.
Aluminium melting furnace fire door and inner flue gas of the stove are first subjected to first time hybrid cooling；Carried out second subsequently into heat exchanger
The dust in flue gas is handled by wet electrical dust precipitator after cooling；Flue gas into wet electrical dust precipitator need to further spray
Water just dedusting is simultaneously cooled to saturated flue gas；Water after spray enters water treatment system and administers Posterior circle utilization；It is clean after processing
Flue gas provides power by blower fan, passes through outlet conduit 9, chimney qualified discharge.
Aluminum melting furnace smoke includes smoke evacuation and fire door smoke evacuation in stove；Smoke discharging pipe need to be thermally insulated in the stove, stove
Door smoke evacuation need to rationally set smoke collecting cover, and two-way flue gas is mixed to total pipeline, and mixer selector valve is set on house steward, can be cold by being mixed into
Wind ensures flue gas cool-down to 250 DEG C or so.
Smoke processing system can handle the flue gas of more aluminium melting furnaces simultaneously, and switching valve is provided with flue system, can
According to production needs, aluminium melting furnace quantity of the regulation into flue gas system.
Flue gas heat-exchange unit is used for mixed flue collector flue gas cool-down to 150 DEG C or so；Vertical honeycomb tubular type wet type electricity
Collector for duster spraying cooling and dedusting are provided with layer 2-4 spraying layer in one, bottom, by flue gas cool-down to the wet cigarette of 50-70 DEG C of saturation
Gas.
As shown in Fig. 2 wet electrical dust precipitator bottom is provided with airflow-distribution board system 4, it is ensured that the uniformity of air-flow；On
Portion is provided with water rinse-system, and for removing the dust trapped in anode tube, water rinse-system is intermitten service, can be effectively save
Water；The supporting nozzle of water rinse-system is solid spray nozzle of volution, to ensure rinsing quality, effectively using shower water, both be can guarantee that
Electric field region Integral cleaning effect, and can avoid electric field spark from discharging, and can realize and not power off on-line cleaning.
Vertical honeycomb tubular type wet electrical dust precipitator is provided with negative electrode take-up device 5 and attached hot blast closed system 8.Hot blast is closed
System 8 realizes that porcelain insulator is effectively isolated with saturation wet flue gas by blasting hot blast with pressure in incubator and wet flue gas contact surface,
Prevent porcelain insulator makes moist from climbing electricity, improve electric field operation stability.
Wet electrical dust precipitator discharge electrode uses integral hanging structure, and discharge plume uses corrosion-resistant stainless steel alloy material,
Cathode line bottom is configured with weight or overall fixed frame, prevents discharge plume from swinging in operation, it is ensured that running current voltage
It is stable.It is different according to flash-over characteristic and structure in the utility model, it is designed with spiral rigid line, acupuncture rigid line, serrated helicoid flexible cord
Three kinds of cathode line line styles, cathode line material are corrosion-resisting alloy steel.
Vertical honeycomb tubular type wet electrical dust precipitator is provided with spraying cooling system 3, and internal duct and nozzle are corrosion-resistant material
Matter, shower water rinse-system are sprayed for interruption, can be adjusted according to the condition of production.
Water treatment system is handled and recycled to shower water；Dust separation system is provided with blower fan and chimney.
The utility model solves the problems, such as the removing of pollutant in aluminium melting furnace high-temperature flue gas, avoids dry cloth bag removing
The problems such as burn into that mode occurs pastes bag, resistance is high.In actual applications, using wet scrubber as nucleus equipment, one is formed
Cover wet method dedusting system.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (5)
1. a kind of aluminum melting furnace smoke wet electric dust-removing cleaning system, it is characterised in that fume trap cover is set in aluminium melting furnace stove
And fire door flue gas is collected, the flue gas after collecting enters flue gas heat-exchange unit by total pipeline, and the flue gas that heat exchanger comes out is the bottom of from
Portion enters wet electrical dust precipitator, and the wet electrical dust precipitator includes housing, and wet electric section is set in housing, is set in wet electric pars infrasegmentalis
Put spray section；In housing bottom, spray column drip pan is set（1）, the wet electric section is by anode system（6）, cathod system（7）Structure
Into the spray section top sets spraying cooling system（3）, bottom sets air flow method system（4）；The spray column drip pan
（1）Bottom sets water treatment system.
A kind of 2. aluminum melting furnace smoke wet electric dust-removing cleaning system according to claim 1, it is characterised in that the sun
Electrode systems（6）It is made up of anode tube module, the cathod system is by high frequency electric source, cathode frame, cathode line, in the cathode line
Provided with take-up device.
3. a kind of aluminum melting furnace smoke wet electric dust-removing cleaning system according to claim 1, it is characterised in that described total
Mixer selector valve is set on pipeline.
4. a kind of aluminum melting furnace smoke wet electric dust-removing cleaning system according to claim 1, it is characterised in that described wet
The top of formula electric cleaner housing sets hot blast closed system（8）.
A kind of 5. aluminum melting furnace smoke wet electric dust-removing cleaning system according to claim 1, it is characterised in that the water
Processing system water treatment system is made up of acid pump, clarified water pump, sewage pump, chemicals feeder, clear water reserviors, neutralization pond and mummifying pool, institute
State and clarified water pump is provided between clear water reserviors and wet electrical dust precipitator, sewage pump is provided between the neutralization pond and mummifying pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720342570.8U CN206621945U (en) | 2017-04-01 | 2017-04-01 | A kind of aluminum melting furnace smoke wet electric dust-removing cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720342570.8U CN206621945U (en) | 2017-04-01 | 2017-04-01 | A kind of aluminum melting furnace smoke wet electric dust-removing cleaning system |
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| CN206621945U true CN206621945U (en) | 2017-11-10 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144400A (en) * | 2018-01-30 | 2018-06-12 | 厦门蓝天美环保科技有限公司 | Wet electric precipitator |
| CN108159824A (en) * | 2018-02-01 | 2018-06-15 | 山东神华山大能源环境有限公司 | Direct-cooled condensate and wet electrical integrated dedusting demister, system and method |
| CN109351111A (en) * | 2018-12-04 | 2019-02-19 | 合肥鸿山工程科技有限公司 | A kind of efficient zinc cigarette purification dust removal system of novel low energy |
| CN110332812A (en) * | 2019-05-29 | 2019-10-15 | 凯米特新材料科技有限公司 | A kind of cleaning highly effective aluminium-melting kiln gas dust-extraction unit |
| CN110339659A (en) * | 2019-07-31 | 2019-10-18 | 中国科学院力学研究所 | One kind being used for the ultra-clean fire tube low temperature wet electric dust collector of converter gas |
| CN112442567A (en) * | 2019-09-03 | 2021-03-05 | 中冶京诚工程技术有限公司 | Converter primary flue gas dedusting method and system |
-
2017
- 2017-04-01 CN CN201720342570.8U patent/CN206621945U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144400A (en) * | 2018-01-30 | 2018-06-12 | 厦门蓝天美环保科技有限公司 | Wet electric precipitator |
| CN108159824A (en) * | 2018-02-01 | 2018-06-15 | 山东神华山大能源环境有限公司 | Direct-cooled condensate and wet electrical integrated dedusting demister, system and method |
| CN109351111A (en) * | 2018-12-04 | 2019-02-19 | 合肥鸿山工程科技有限公司 | A kind of efficient zinc cigarette purification dust removal system of novel low energy |
| CN110332812A (en) * | 2019-05-29 | 2019-10-15 | 凯米特新材料科技有限公司 | A kind of cleaning highly effective aluminium-melting kiln gas dust-extraction unit |
| CN110339659A (en) * | 2019-07-31 | 2019-10-18 | 中国科学院力学研究所 | One kind being used for the ultra-clean fire tube low temperature wet electric dust collector of converter gas |
| CN112442567A (en) * | 2019-09-03 | 2021-03-05 | 中冶京诚工程技术有限公司 | Converter primary flue gas dedusting method and system |
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