CN203240910U - Flue gas recycling system of ferromanganese smelting electric furnace - Google Patents
Flue gas recycling system of ferromanganese smelting electric furnace Download PDFInfo
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- CN203240910U CN203240910U CN2013200515916U CN201320051591U CN203240910U CN 203240910 U CN203240910 U CN 203240910U CN 2013200515916 U CN2013200515916 U CN 2013200515916U CN 201320051591 U CN201320051591 U CN 201320051591U CN 203240910 U CN203240910 U CN 203240910U
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Abstract
Provided is a flue gas recycling system of a ferromanganese smelting electric furnace. The flue gas recycling system of the ferromanganese smelting electric furnace comprises the ferromanganese smelting electric furnace, a mechanical cooler, a bag-type dust collector and a fan, wherein the ferromanganese smelting electric furnace, the mechanical cooler, the bag-type dust collector and the fan are connected through a flue gas exhaust pipeline I in sequence, a flue gate plate II is arranged on the flue gas exhaust pipeline I which is arranged between the ferromanganese smelting electric furnace and the mechanical cooler, a flue gas exhaust pipeline II which is directly communicated with the outside is further arranged between the ferromanganese smelting electric furnace and the flue gate plate II, and a flue gate plate I is arranged on the flue gas exhaust pipeline II which is directly communicated with the outside. The flue gas recycling system of the ferromanganese smelting electric furnace further comprises an exhaust gas waste heat boiler, wherein the exhaust gas waste heat boiler is communicated with the flue gas exhaust pipeline I between the ferromanganese smelting electric furnace and the mechanical cooler, the flue gas exhaust pipeline I between the mechanical cooler and the bag-type dust collector, and the flue gas exhaust pipeline I between the bag-type dust collector and the fan through flue gas exhaust pipelines III, and flue gate plates III are arranged on the communicated flue gas exhaust pipelines III respectively. The flue gas recycling system of the ferromanganese smelting electric furnace is applicable to low-grade flue gas waste heat recycling, and high in use ratio of waste heat of exhaust flue gas.
Description
Technical field
The utility model belongs to low-grade flue gas waste heat recovery reutilization technology field, has been specifically related to a kind of ferromanganese smelting electric furnace flue gas recycling system.
Background technology
The high energy consumption industries such as iron and steel, metallurgy, chemical industry, glass only reclaim the part high-temperature residual heat at present, and the utilization of middle low temperature waste gas waste heat still is in the starting stage.For a long time, the low grade residual heat energy such as ferromanganese smelting industry are not all recycled, smelting a flue gas that produces extracts out from its furnace roof, after watercooling elbow, water-cooled sliding sleeve, combustion settling chamber, water-cooled flue cooling, drop to approximately 130 ℃ through air cooler or spray cooling tower again, tap into deduster and purify, and be discharged into atmosphere through blower fan.Electric furnace flue gas adopts water cooling mode, and not only the heat of high-temperature flue gas is not recycled, and coolant water temperature raises, flow is large, has consumed a large amount of electric energy, and loss and the pollution on the environment thereof of the cooling water in the simultaneously cyclic process are also larger.According to investigations, manganeisen is typical highly energy-consuming maximum discharge industry, if but by the cycle energy technology, utilize its cogeneration, can reclaim about 20% of total power consumption.Cogeneration is a very promising outlet of the sector energy-saving and emission-reduction just, yet, according to inventor's investigation, a kind of system that is applicable to the recycling of ferromanganese smelting electric furnace flue gas is not also arranged at present, therefore, in ferromanganese smelting production, can't realize its useless off-gas recovery recycling.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, it is the flue-gas temperature low (being not more than 400 ℃) that exists in the ferromanganese smelting electric furnace, flue gas flow and temperature fluctuation large (150-400 ℃), kind of dust high (3000-5000mg/m3), thin (accounting for 80% below the 2 μ m) viscosity of granularity of dust is large, flue gas and steam conveying pipe are long, the guardian technique difficult problems such as removing ash of boiler difficulty and boiler producing steam are unstable, provide a kind of and be applicable to low-grade flue gas waste heat recovery recycling, and can be fully, utilize efficiently the ferromanganese smelting electric furnace flue gas recycling system of useless flue gas.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of ferromanganese smelting electric furnace flue gas recycling system comprises the manganeisen electric furnace, mechanical cooler, sack cleaner and the blower fan that are connected by the smoke discharging pipe I successively; Smoke discharging pipe I between described manganeisen electric furnace and the mechanical cooler is provided with flue damper door-plate II; Also be provided with straight-through outside smoke discharging pipe II between described manganeisen electric furnace and the flue damper door-plate II, straight-through outside smoke discharging pipe II is provided with flue damper door-plate I; Wherein, described ferromanganese smelting electric furnace flue gas recycling system also comprises waste gas residual heat boiler; Described waste gas residual heat boiler by the smoke discharging pipe III respectively with manganeisen electric furnace and mechanical cooler between smoke discharging pipe I, mechanical cooler and sack cleaner between smoke discharging pipe I, sack cleaner and blower fan between the smoke discharging pipe I be connected, and be respectively equipped with flue damper door-plate III in the smoke discharging pipe III that is communicated with.
Further specify as of the present utility model, the smoke discharging pipe III between above-described waste gas residual heat boiler and the flue damper door-plate is provided with straight-through outside smoke discharging pipe IV, and the smoke discharging pipe IV is provided with flue damper door-plate IV.The setting of smoke discharging pipe IV in the time of can working as the excess Temperature in the pipeline, passes into the atmosphere cold air, with the temperature in the equalizing main, and the smoke discharging pipe of protection system.
Further specify as of the present utility model, above-described smoke discharging pipe I, smoke discharging pipe II, smoke discharging pipe III and smoke discharging pipe IV are the smoke discharging pipe that adopts inside and outside insulation construction.
Further specify as of the present utility model, the smoke discharging pipe of above-described inside and outside insulation construction is provided with the high-temperature wearable ramming bed of material, grid tempering net, ceramic silicate aluminum board, alkali resistance clay layer, smoke pipe, rock-wool heat insulation plate and aluminium sheet from the inside to the outside successively; Described alkali resistance clay layer spreads upon on the inwall of smoke pipe, and is provided with fixedly hook nail between alkali resistance clay layer and the grid tempering net.Adopt inside and outside insulation construction, not only play good heat insulation effect, be convenient to improve the recycling rate of useless flue gas, and can better protect smoke discharging pipe, prolong smoke discharging pipe service life, reduce the generation of fault in production.And the fixedly hook nail that arranges can be fixed on the high-temperature wearable ramming bed of material, grid tempering net, ceramic silicate aluminum board, alkali resistance clay layer on the inwall of smoke pipe as a firm integral body.
Further specify as of the present utility model, the setting space of above-described fixedly hook nail is 15*15～25*25cm, preferred 20*20cm.Such spacing setting can be reinforced the integral body that the high-temperature wearable ramming bed of material, grid tempering net, ceramic silicate aluminum board, alkali resistance clay layer form, be difficult for causing each pull-up from.Above-mentioned spacing is the spacing coordinate in the plane coordinate system.
Further specify as of the present utility model, above-described grid tempering net is Ф 2.5mm～Ф 4mm grid tempering net, preferred Ф 3.2mm grid tempering net.The use that combines with fixing hook nail of grid tempering net makes the high-temperature wearable ramming bed of material, grid tempering net, ceramic silicate aluminum board, alkali resistance clay layer become a firm integral body.
Further specify as of the present utility model, the thickness of above-described alkali resistance clay layer is 3～5mm; The thickness of the described high-temperature wearable ramming bed of material is 30～50mm, preferred 40mm; The thickness of described ceramic silicate aluminum board is 50～70mm, preferred 60mm; The thickness of described rock-wool heat insulation plate is 70～90mm, preferred 80mm; The thickness of described aluminium sheet is 0.5～0.8mm, preferred 0.7mm.
Ferromanganese smelting electric furnace flue gas recycling of the present utility model system can be converted to electric energy with smoke heat energy in conjunction with Turbo-generator Set, again electric energy is directly returned manganese electric furnace electric power system, realize the recycling of the energy, warm fume afterheat is used for generating in produce during silicomanganese alloy mine heat furnace smelting produced 250～350 ℃, worldwide still belong to the first, can realize that the manganeisen specific energy consumption is reduced to the 711kg standard coal, occupy national top standard, reduce by 10% than national Specification energy consumption limit.
Use that the utility model generates electricity technological process be: waste gas residual heat boiler is collected and introduced by the road to the waste gas of discharging from manganeisen electric furnace top through semiclosed petticoat pipe, after waste gas residual heat boiler heat exchange and part dedusting, waste gas enters sack cleaner after being down to below 180 ℃, then enters atmosphere by blower fan, chimney; The superheated steam that waste gas residual heat boiler produces enters the Turbo-generator Set generating by stop valve, its afterbody exhaust steam in condenser through cooling tower, become condensed water after the circulation cooling of the compositions such as water circulating pump, condensed water is again through condensate pump, gland steam heater, feedwater after the heating enters vacuum dust cather, condensate water behind the deaeration in condenser and demineralized water moisturizing approximately about 50 ℃ (this temperature water enter behind the waste gas residual heat boiler can be fully and low-grade flue gas carry out heat exchange), enter waste gas residual heat boiler by after the feed pump pressurization removing water oxygen gas, this feedwater is successively carried out the reverse convection heat exchange through waste gas residual heat boiler heating surface and flue gas, wherein after being heated as saturated hot-water, the feedwater of economizer enters the waste gas residual heat boiler drum, after heating, the saturation water process Natural Circulation of this drum or forced circulation become saturated vapor in evaporimeter, saturated vapor passes through low temperature superheater again, attemperator, high temperature superheater becomes superheated steam, superheated steam enters the Turbo-generator Set main inlet throttle-stop valve by the road, so just forms a closed circuit; The waste gas residual heat boiler sewer enters respectively by blow-off line decides row's flash vessel and platoon flash vessel.
Operation principle of the present utility model: utilize the useless entrained heat of flue gas of low temperature of the manganeisen electric furnace outlet of roasting manganese ore in the smelting process, realize waste heat recovery by the waste gas residual heat boiler device; Be about to the waste gas residual heat boiler that existing manganeisen electric furnace configures, in parallel with the mechanical air cooler of original system, and will have uninsulated flue duct retrofit one-tenth insulation flue now, and at flue corresponding electronic flue shutter door is set, when the waste gas residual heat boiler system moves, with the flue shutter door I before the mechanical cooler, flue shutter door II is closed (wherein flue shutter door I is the in line electric flashboard door of accident), opening flue shutter door III makes flue gas directly enter waste gas residual heat boiler by the insulation flue, produce low-grade (pressure 1.57MPa for example, 320 ℃ of temperature) superheated steam, deliver to Steam Turbine by steam conveying pipe, doing thermal power transfer through the expansion of steam turbine is kinetic energy, drive the final merit generating of generator, electricity is externally exported; By sack cleaner, enter chimney through blower fan by the flue gas after the waste gas residual heat boiler heat exchange.When waste gas residual heat boiler maintenance or fault, open the front flue shutter door II of mechanical air cooler, flue gas does not affect the normal operation of electrothermal furnace by former flue system discharging.
Compared with prior art, the beneficial effect that possesses of the utility model:
Simple in structure, improvement cost is low.By increasing smoke discharging pipe and flue shutter door, that waste gas residual heat boiler is in parallel with mechanical cooler at original smelting system, realize the recycling of useless flue gas.
2. be applicable to low-grade flue gas waste heat recovery recycling, useless fume afterheat utilization rate is high.By the recycling that smoke discharging pipe, flue shutter door reasonably is set and adopts the smoke discharging pipe realization low-grade flue gas waste heat of inside and outside insulation construction, and because the high insulating effect of flue, useless fume afterheat utilization rate is high, has also reached the requirement of energy-conserving and environment-protective.
3. the smoke discharging pipe that uses is high temperature resistant, corrosion-resistant, not fragile, long service life.By the material selection of each level and the structural configuration of each level, greatly reduce the incidence of fault in production, reduced maintenance load, also just reduced production cost, efficiently solved present high-temperature furnace smoke pipeline difficult design, invest the problem large, that maintenance workload is large.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the structural representation of another embodiment of the utility model.
Fig. 3 is the partial cross sectional views of smoke discharging pipe in the utility model.
Reference numeral: 1-manganeisen electric furnace, 2-waste gas residual heat boiler, 3-mechanical cooler, the 4-sack cleaner, the 5-blower fan, 6,7-flue shutter door I, 8,9-flue shutter door II, 10,11,13,14-flue shutter door III, 12-flue shutter door IV, 15-smoke discharging pipe I, 16,17-smoke discharging pipe II, 18,19,20,21-smoke discharging pipe III, 22-smoke discharging pipe IV, the 23-high-temperature wearable ramming bed of material, 24-grid tempering net, 25-pottery silicate aluminum board, 26-is hook nail fixedly, 27-alkali resistance clay, 28-aluminium sheet, the 29-rock-wool heat insulation plate, the 30-smoke pipe.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Embodiment 1:
As shown in Figure 1, ferromanganese smelting electric furnace flue gas recycling system install certain manganeisen smeltery comprises the manganeisen electric furnace (1), mechanical cooler (3), sack cleaner (4) and the blower fan (5) that are connected by smoke discharging pipe I (15) successively; Smoke discharging pipe I (15) between described manganeisen electric furnace (1) and the mechanical cooler (3) is provided with flue damper door-plate II (9); Also be provided with straight-through outside smoke discharging pipe II (17) between described manganeisen electric furnace (1) and the flue damper door-plate II (9), straight-through outside smoke discharging pipe II (17) is provided with flue damper door-plate I (7); Wherein, described ferromanganese smelting electric furnace flue gas recycling system also comprises waste gas residual heat boiler (2); Described waste gas residual heat boiler (2) is by smoke discharging pipe III (19,20,21) respectively with manganeisen electric furnace (1) and mechanical cooler (3) between smoke discharging pipe I (15), mechanical cooler (3) and sack cleaner (4) between smoke discharging pipe I (15), sack cleaner (4) and blower fan (5) between smoke discharging pipe I (15) be connected, and the smoke discharging pipe III (19 that is being communicated with, 20,21) be respectively equipped with flue damper door-plate III (11,13,14) on.
Embodiment 2:
As shown in Figure 2, ferromanganese smelting electric furnace flue gas recycling system install certain manganeisen smeltery comprises the manganeisen electric furnace (1), mechanical cooler (3), sack cleaner (4) and the blower fan (5) that are connected by smoke discharging pipe I (15) successively; Smoke discharging pipe I (15) between described manganeisen electric furnace (1) and the mechanical cooler (3) is provided with flue damper door-plate II (8,9); Also be provided with straight-through outside smoke discharging pipe II (16,17) between described manganeisen electric furnace (1) and the flue damper door-plate II (8,9), straight-through outside smoke discharging pipe II (16,17) is provided with flue damper door-plate I (6,7); Wherein, described ferromanganese smelting electric furnace flue gas recycling system also comprises waste gas residual heat boiler (2); Described waste gas residual heat boiler (2) is by smoke discharging pipe III (18,19,20,21) respectively with manganeisen electric furnace (1) and mechanical cooler (3) between smoke discharging pipe I (15), mechanical cooler (3) and sack cleaner (4) between smoke discharging pipe I (15), sack cleaner (4) and blower fan (5) between smoke discharging pipe I (15) be connected, and the smoke discharging pipe III (18 that is being communicated with, 19,20,21) be respectively equipped with flue damper door-plate III (10 on, 11,13,14).
Embodiment 3:
Ferromanganese smelting electric furnace flue gas recycling system install certain manganeisen smeltery comprises the manganeisen electric furnace (1), mechanical cooler (3), sack cleaner (4) and the blower fan (5) that are connected by smoke discharging pipe I (15) successively; Smoke discharging pipe I (15) between described manganeisen electric furnace (1) and the mechanical cooler (3) is provided with flue damper door-plate II (8,9); Also be provided with straight-through outside smoke discharging pipe II (16,17) between described manganeisen electric furnace (1) and the flue damper door-plate II (8,9), straight-through outside smoke discharging pipe II (16,17) is provided with flue damper door-plate I (6,7); It is characterized in that: described ferromanganese smelting electric furnace flue gas recycling system also comprises waste gas residual heat boiler (2); Described waste gas residual heat boiler (2) is by smoke discharging pipe III (18,19,20,21) respectively with manganeisen electric furnace (1) and mechanical cooler (3) between smoke discharging pipe I (15), mechanical cooler (3) and sack cleaner (4) between smoke discharging pipe I (15), sack cleaner (4) and blower fan (5) between smoke discharging pipe I (15) be connected, and the smoke discharging pipe III (18 that is being communicated with, 19,20,21) be respectively equipped with flue damper door-plate III (10 on, 11,13,14);
Smoke discharging pipe III (18,19) between described waste gas residual heat boiler (2) and the flue damper door-plate (10,11) is provided with straight-through outside smoke discharging pipe IV (22), and smoke discharging pipe IV (22) is provided with flue damper door-plate IV (12).
Embodiment 4:
Ferromanganese smelting electric furnace flue gas recycling system install certain manganeisen smeltery comprises the manganeisen electric furnace (1), mechanical cooler (3), sack cleaner (4) and the blower fan (5) that are connected by smoke discharging pipe I (15) successively; Smoke discharging pipe I (15) between described manganeisen electric furnace (1) and the mechanical cooler (3) is provided with flue damper door-plate II (8,9); Also be provided with straight-through outside smoke discharging pipe II (16,17) between described manganeisen electric furnace (1) and the flue damper door-plate II (8,9), straight-through outside smoke discharging pipe II (16,17) is provided with flue damper door-plate I (6,7); It is characterized in that: described ferromanganese smelting electric furnace flue gas recycling system also comprises waste gas residual heat boiler (2); Described waste gas residual heat boiler (2) is by smoke discharging pipe III (18,19,20,21) respectively with manganeisen electric furnace (1) and mechanical cooler (3) between smoke discharging pipe I (15), mechanical cooler (3) and sack cleaner (4) between smoke discharging pipe I (15), sack cleaner (4) and blower fan (5) between smoke discharging pipe I (15) be connected, and the smoke discharging pipe III (18 that is being communicated with, 19,20,21) be respectively equipped with flue damper door-plate III (10 on, 11,13,14);
Smoke discharging pipe III (18,19) between described waste gas residual heat boiler (2) and the flue damper door-plate (10,11) is provided with straight-through outside smoke discharging pipe IV (22), and smoke discharging pipe IV (22) is provided with flue damper door-plate IV (12);
Described smoke discharging pipe I (15), smoke discharging pipe II (16,17), smoke discharging pipe III (18,19,20,21) and smoke discharging pipe IV (22) are the smoke discharging pipe that adopts inside and outside insulation construction; The smoke discharging pipe of described inside and outside insulation construction is provided with the high-temperature wearable ramming bed of material (23), grid tempering net (24), ceramic silicate aluminum board (25), alkali resistance clay layer (27), smoke pipe (30), rock-wool heat insulation plate (29) and aluminium sheet (28) from the inside to the outside successively; Described alkali resistance clay layer (27) spreads upon on the inwall of smoke pipe (30), and is provided with fixedly hook nail (26) between alkali resistance clay layer (27) and the grid tempering net (24); The setting space of described fixedly hook nail (26) is 20*20cm; Described grid tempering net (24) is Ф 3.2mm grid tempering net; The thickness of described alkali resistance clay layer (27) is 4mm; The thickness of the described high-temperature wearable ramming bed of material (23) is 40mm; The thickness of described ceramic silicate aluminum board (25) is 60mm; The thickness of described rock-wool heat insulation plate (29) is 80mm; The thickness of described aluminium sheet (28) is 0.7mm.
Embodiment 5:
Be with the difference of embodiment 4: the setting space of described fixedly hook nail (26) is 15*15cm; Described grid tempering net (24) is Ф 2.5mm grid tempering net; The thickness of described alkali resistance clay layer (27) is 3mm; The thickness of the described high-temperature wearable ramming bed of material (23) is 30mm; The thickness of described ceramic silicate aluminum board (25) is 50mm; The thickness of described rock-wool heat insulation plate (29) is 70mm; The thickness of described aluminium sheet (28) is 0.5mm.
Embodiment 6:
Be with embodiment 4,5 difference: the setting space of described fixedly hook nail (26) is 25*25cm; Described grid tempering net (24) is Ф 4mm grid tempering net; The thickness of described alkali resistance clay layer (27) is 5mm; The thickness of the described high-temperature wearable ramming bed of material (23) is 50mm; The thickness of described ceramic silicate aluminum board (25) is 70mm; The thickness of described rock-wool heat insulation plate (29) is 90mm; The thickness of described aluminium sheet (28) is 0.8mm.
Embodiment 7:
Be with embodiment 4,5,6 difference: the setting space of described fixedly hook nail (26) is 21*21cm; Described grid tempering net (24) is Ф 4mm grid tempering net; The thickness of described alkali resistance clay layer (27) is 3mm; The thickness of the described high-temperature wearable ramming bed of material (23) is 60mm; The thickness of described ceramic silicate aluminum board (25) is 60mm; The thickness of described rock-wool heat insulation plate (29) is 80mm; The thickness of described aluminium sheet (28) is 0.6mm.
The ferromanganese smelting electric furnace flue gas recycling system architecture of above-described embodiment 1-7 is simple, improvement cost is low, be applicable to low-grade flue gas waste heat recovery recycling, useless fume afterheat utilization rate is high.
Claims (6)
1. a ferromanganese smelting electric furnace flue gas recycling system comprises the manganeisen electric furnace (1), mechanical cooler (3), sack cleaner (4) and the blower fan (5) that are connected by smoke discharging pipe I (15) successively; Smoke discharging pipe I (15) between described manganeisen electric furnace (1) and the mechanical cooler (3) is provided with flue damper door-plate II (9); Also be provided with straight-through outside smoke discharging pipe II (17) between described manganeisen electric furnace (1) and the flue damper door-plate II (9), straight-through outside smoke discharging pipe II (17) is provided with flue damper door-plate I (7); It is characterized in that: described ferromanganese smelting electric furnace flue gas recycling system also comprises waste gas residual heat boiler (2); Described waste gas residual heat boiler (2) is by smoke discharging pipe III (19,20,21) respectively with manganeisen electric furnace (1) and mechanical cooler (3) between smoke discharging pipe I (15), mechanical cooler (3) and sack cleaner (4) between smoke discharging pipe I (15), sack cleaner (4) and blower fan (5) between smoke discharging pipe I (15) be connected, and the smoke discharging pipe III (19 that is being communicated with, 20,21) be respectively equipped with flue damper door-plate III (11,13,14) on.
2. ferromanganese smelting electric furnace flue gas recycling according to claim 1 system, it is characterized in that: the smoke discharging pipe III (19) between described waste gas residual heat boiler (2) and the flue damper door-plate (11) is provided with straight-through outside smoke discharging pipe IV (22), and smoke discharging pipe IV (22) is provided with flue damper door-plate IV (12).
3. ferromanganese smelting electric furnace flue gas recycling according to claim 2 system, it is characterized in that: described smoke discharging pipe I (15), smoke discharging pipe II (17), smoke discharging pipe III (19,20,21) and smoke discharging pipe IV (22) be the smoke discharging pipe that adopts inside and outside insulation construction.
4. ferromanganese smelting electric furnace flue gas recycling according to claim 3 system, it is characterized in that: the smoke discharging pipe of described inside and outside insulation construction is provided with the high-temperature wearable ramming bed of material (23), grid tempering net (24), ceramic silicate aluminum board (25), alkali resistance clay layer (27), smoke pipe (30), rock-wool heat insulation plate (29) and aluminium sheet (28) from the inside to the outside successively; Described alkali resistance clay layer (27) spreads upon on the inwall of smoke pipe (30), and is provided with fixedly hook nail (26) between alkali resistance clay layer (27) and the grid tempering net (24).
5. ferromanganese smelting electric furnace flue gas recycling according to claim 4 system, it is characterized in that: described grid tempering net (24) is Ф 2.5mm～Ф 4mm grid tempering net.
6. ferromanganese smelting electric furnace flue gas recycling according to claim 4 system, it is characterized in that: the thickness of described alkali resistance clay layer (27) is 3～5mm; The thickness of the described high-temperature wearable ramming bed of material (23) is 30～50mm; The thickness of described ceramic silicate aluminum board (25) is 50～70mm; The thickness of described rock-wool heat insulation plate (29) is 70～90mm; The thickness of described aluminium sheet (28) is 0.5～0.8mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013200515916U CN203240910U (en) | 2013-01-30 | 2013-01-30 | Flue gas recycling system of ferromanganese smelting electric furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013200515916U CN203240910U (en) | 2013-01-30 | 2013-01-30 | Flue gas recycling system of ferromanganese smelting electric furnace |
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| CN203240910U true CN203240910U (en) | 2013-10-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064173A (en) * | 2014-05-08 | 2014-09-24 | 浙江浙能嘉兴发电有限公司 | Noise reduction device for boiler plant of power station |
-
2013
- 2013-01-30 CN CN2013200515916U patent/CN203240910U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064173A (en) * | 2014-05-08 | 2014-09-24 | 浙江浙能嘉兴发电有限公司 | Noise reduction device for boiler plant of power station |
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