CN201653115U - An electric furnace flue gas purification system - Google Patents
An electric furnace flue gas purification system Download PDFInfo
- Publication number
- CN201653115U CN201653115U CN2009202699316U CN200920269931U CN201653115U CN 201653115 U CN201653115 U CN 201653115U CN 2009202699316 U CN2009202699316 U CN 2009202699316U CN 200920269931 U CN200920269931 U CN 200920269931U CN 201653115 U CN201653115 U CN 201653115U
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- China
- Prior art keywords
- electric furnace
- flue gas
- devaporizer
- cleaning system
- gas cleaning
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- 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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Chimneys And Flues (AREA)
Abstract
本实用新型提供一种电炉烟气净化系统，包括水冷烟道、布袋除尘器和风机，上述设备依次相连，所述水冷烟道的一端与电炉的烟气排放口相连接，其中，还包括蒸发冷却器，所述蒸发冷却器设置于所述水冷烟道和布袋除尘器之间，所述蒸发冷却器的进口与所述水冷烟道相连接，出口与所述布袋除尘器的进口相连接。本实用新型的电炉烟气净化系统的采用喷雾降温净化技术，利用蒸发冷却器，并通过喷水量的控制，对电炉所排放的烟气进行粗除尘，从而降低能耗和延长除尘器的寿命。
The utility model provides an electric furnace flue gas purification system, which includes a water-cooled flue, a bag filter and a fan. A cooler, the evaporative cooler is arranged between the water-cooled flue and the bag filter, the inlet of the evaporative cooler is connected to the water-cooled flue, and the outlet is connected to the inlet of the bag filter. The electric furnace flue gas purification system of the utility model adopts spray cooling and purification technology, utilizes an evaporative cooler, and controls the amount of water sprayed to perform rough dust removal on the flue gas discharged from the electric furnace, thereby reducing energy consumption and prolonging the life of the dust collector .
Description
Technical field
The utility model belongs to flue gas during smelting cleaning process technology field, relates in particular to a kind of electric furnace flue gas cleaning system.
Background technology
The operation principle of existing electric furnace flue gas cleaning system is: the high-temperature flue gas that discharge in electric furnace the 4th hole enters the water-cooled combustion chamber, after coarse granule separation and the burning, enter spark catcher through water-cooled solid matter pipe and extinguish residual spark, entering machine power air cooler again cools, with enter sack cleaner after the issuable low-temperature flue gas of other system mixes in wind-mixer, after blower fan enters smoke stack emission.For preventing to enter the too high cloth bag that burns out of flue-gas temperature of sack cleaner, be provided with wind-mixer at the sack cleaner inlet, sneak into surrounding air when being used for the flue gas overtemperature.The main weak point of traditional electrical kiln gas process for purifying is that the mechanical cooler power consumption that adopts is big, and easily sticking ash and reduction cooling effectiveness, mixed wind increase blower fan and necessary electromotor type selecting, have increased investment and use cost.
The utility model content
The purpose of this utility model is to solve the shortcoming that the deduster life-span lacks in the big and low system that causes of efficiency of dust collection of the existing existing energy consumption of electric furnace flue gas cleaning system.
For solving the problems of the technologies described above, the utility model provides a kind of electric furnace flue gas cleaning system, comprise water-cooled flue, sack cleaner and blower fan, the said equipment links to each other successively, and an end of described water-cooled flue is connected with the fume emission mouth of electric furnace, wherein, also comprise devaporizer, described devaporizer is arranged between described water-cooled flue and the sack cleaner, and the import of described devaporizer is connected with described water-cooled flue, and outlet is connected with the import of described sack cleaner.
Furthermore, the top of described devaporizer is provided with sprayer unit.
Furthermore, the atomizing medium of described sprayer unit use is inert gases such as press water or nitrogen.
Furthermore, the pipeline of the import department of described devaporizer is provided with first temperature measuring equipment.
Furthermore, the pipeline in the exit of described devaporizer is provided with second temperature measuring equipment.
Furthermore, described devaporizer bottom is provided with elbow, and the outlet of described devaporizer is arranged at an end of described elbow.
Furthermore, described elbow bottom also is connected with cinder conveyer.
Furthermore, the motor of described blower fan is a variable-frequency motor.
Adopt electric furnace flue gas cleaning system provided by the utility model, has following advantage: with existing traditional electrical kiln gas process for purifying ratio, saved combustion settling chamber, mechanical cooler, the spark capturing device, and adopt devaporizer, so the cold wind cooling need not additionally be sneaked into by system, reduce the type selecting specification of blower fan and gas-distributing motor, reduced energy consumption; The thick dedusting effect of devaporizer can reduce the load of sack cleaner 35%, has prolonged the service life of cloth bag; The needed length of water-cooled flue has also been shortened in its strong cooling effect greatly; Also need not simultaneously additionally to mix wind, reduced whole air quantity; Reduced the mean resistance of system's operation, and can economize on electricity more than 20%.
Description of drawings
Fig. 1 is the structural representation of the utility model electric furnace flue gas cleaning system.
The specific embodiment
The principle of electric furnace flue gas cleaning system of the present utility model is to adopt the mist cooling purification techniques, utilize devaporizer of the prior art, and the control by injection flow rate, electric furnace institute discharged flue gas is carried out thick dedusting, thereby cut down the consumption of energy and prolong life-span of deduster.
Below in conjunction with accompanying drawing preferred implementation of the present utility model is elaborated.
With reference to shown in Figure 1, be the structural representation of the utility model electric furnace flue gas cleaning system.By this figure as can be seen, electric furnace flue gas cleaning system of the present utility model comprises water-cooled flue 1, devaporizer 3, sack cleaner 7 and blower fan 8, the said equipment links to each other successively, wherein an end of water-cooled flue 1 links to each other with the fume emission mouth of electric furnace 13, devaporizer 3 is arranged between water-cooled flue 1 and the sack cleaner 7, its import is connected with water-cooled flue 1 other end, and outlet is connected with the import of sack cleaner 7.Blower fan 8 also is connected with chimney 9, is used for the flue gas behind the emission purification, and wherein the motor of blower fan 8 is a variable-frequency motor.
The top of devaporizer 3 is provided with and is used to the sprayer unit 4 of spraying and lowering the temperature, and the atomizing medium that sprayer unit 4 uses is to have inert gases such as the press water of certain pressure or nitrogen.
Be respectively arranged with first temperature measuring equipment 2 and second temperature measuring equipment 6 on the pipeline in the import department of devaporizer 3 and exit, the numerical value of these two temperature measuring equipments can import the spraying control system into, is used for regulating and controlling the injection flow rate of sprayer unit 4.
Devaporizer 3 bottoms also are provided with elbow 5, in order to built-in cinder conveyer, the dust of collecting in the devaporizer 3 is transported to sliding cement pipe, and import grey storehouse by sliding cement pipe, the outlet of devaporizer 3 is arranged at an end of elbow 5, and this end is connected by the import of pipeline with sack cleaner 7.Be respectively equipped with cinder conveyer 10 and cinder conveyer 11 at elbow 5 and sack cleaner 7 bottoms, be respectively applied for and carry devaporizer 3 and sack cleaner 7 to collect dust.
Below in conjunction with the concrete course of work to electric furnace flue gas cleaning system of the present utility model: electric furnace flue gas directly enters devaporizer 3 from electric furnace the 4th aperture water-cooled flue 1, cooling and thick dedusting in devaporizer 3, enter the 7 smart dedustings of cloth bag dust-releasing device through elbow 5 and connecting pipe about greenhouse cooling to 180 ℃, flue gas after being purified enters atmosphere through blower fan 8 suction chimneys 9.The water droplets that the sprayer unit 4 that is provided with in the devaporizer 3 is sprayed is absorbed heat to evaporate in devaporizer and is reduced flue-gas temperature, removes 40% left and right sides dust in the flue gas simultaneously.The injection flow rate of first temperature measuring equipment 2 and second temperature measuring equipment, 6 control sprayer units.At the dust of devaporizer 3 and sack cleaner 7 collections, collect and conveying by cinder conveyer 10 and cinder conveyer 11.
Below in conjunction with a concrete experiment the beneficial effects of the utility model are further detailed: 70 tons of 1100 ℃ of high-temperature flue gas that electric arc furnaces discharged, enter water-cooled flue 1 through electric furnace the 4th hole, be cooled to and enter devaporizer 3 about 800 ℃, through entering sack cleaner 7 smart dedustings about mist cooling to 180 ℃ and after the thick dedusting, after 9 dischargings of blower fan 8 suction chimneys, concentration of emission is less than 15mg/Nm
335% dust is removed in devaporizer 3 in the flue gas, and the flue dust that flue dust after removing and sack cleaner 7 are removed is transported to bucket elevator through following cinder conveyer 10 and 11 respectively and sends into ash-storing bin 12.
By above-mentioned to the utility model electric furnace flue gas cleaning system embodiment and the detailed description of experimental data as can be seen, electric furnace flue gas cleaning system of the present utility model has adopted the mist cooling purification techniques, utilize devaporizer that electric furnace institute discharged flue gas is carried out thick dedusting, thereby cut down the consumption of energy and prolong life-span of deduster.
Need to prove at last; the above only is preferred embodiment of the present utility model; rather than to the qualification of technical solutions of the utility model, any the utility model technical characterictic being equal to of being done replaced or corresponding improvement, still within protection domain of the present utility model.
Claims (9)
1. electric furnace flue gas cleaning system, comprise water-cooled flue, sack cleaner and blower fan, the said equipment links to each other successively, one end of described water-cooled flue is connected with the fume emission mouth of electric furnace, it is characterized in that also comprising devaporizer, described devaporizer is arranged between described water-cooled flue and the sack cleaner, and the import of described devaporizer is connected with described water-cooled flue, and outlet is connected with the import of described sack cleaner.
2. electric furnace flue gas cleaning system as claimed in claim 1 is characterized in that the top of described devaporizer is provided with sprayer unit.
3. electric furnace flue gas cleaning system as claimed in claim 2 is characterized in that, the atomizing medium that described sprayer unit uses is press water or inert gas.
4. electric furnace flue gas cleaning system as claimed in claim 3 is characterized in that, described inert gas is a nitrogen.
5. as the arbitrary described electric furnace flue gas cleaning system of claim 1 to 4, it is characterized in that the pipeline of the import department of described devaporizer is provided with first temperature measuring equipment.
6. electric furnace flue gas cleaning system as claimed in claim 5 is characterized in that the pipeline in the exit of described devaporizer is provided with second temperature measuring equipment.
7. electric furnace flue gas cleaning system as claimed in claim 6 is characterized in that, described devaporizer bottom is provided with elbow, and the outlet of described devaporizer is arranged at an end of described elbow.
8. electric furnace flue gas cleaning system as claimed in claim 7 is characterized in that, described elbow bottom also is connected with cinder conveyer.
9. electric furnace flue gas cleaning system as claimed in claim 5 is characterized in that, the motor of described blower fan is a variable-frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202699316U CN201653115U (en) | 2009-11-04 | 2009-11-04 | An electric furnace flue gas purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202699316U CN201653115U (en) | 2009-11-04 | 2009-11-04 | An electric furnace flue gas purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653115U true CN201653115U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202699316U Expired - Lifetime CN201653115U (en) | 2009-11-04 | 2009-11-04 | An electric furnace flue gas purification system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201653115U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941367A (en) * | 2015-06-05 | 2015-09-30 | 常州市恒宁能源设备有限公司 | Flue gas treatment system |
| CN113230798A (en) * | 2021-05-07 | 2021-08-10 | 佛山市绿源亚太环保设备科技有限公司 | Aluminum melting smoke treatment workshop and smoke treatment method thereof |
-
2009
- 2009-11-04 CN CN2009202699316U patent/CN201653115U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941367A (en) * | 2015-06-05 | 2015-09-30 | 常州市恒宁能源设备有限公司 | Flue gas treatment system |
| CN113230798A (en) * | 2021-05-07 | 2021-08-10 | 佛山市绿源亚太环保设备科技有限公司 | Aluminum melting smoke treatment workshop and smoke treatment method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |