CN109536667A - A kind of Wetting once dust collection of converter gas cleaning integrated system - Google Patents
A kind of Wetting once dust collection of converter gas cleaning integrated system Download PDFInfo
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- CN109536667A CN109536667A CN201710863867.3A CN201710863867A CN109536667A CN 109536667 A CN109536667 A CN 109536667A CN 201710863867 A CN201710863867 A CN 201710863867A CN 109536667 A CN109536667 A CN 109536667A
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- scrubber
- flue
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
- C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C2100/00—Exhaust gas
- C21C2100/02—Treatment of the exhaust gas
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- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a kind of wet process once dust collection of converter gas cleaning integrated systems of gas cleaning processing technology field.Gasification cooling flue outlet is connected with first grade scrubber, and first grade scrubber outlet is connected with secondary scrubber entrance, and secondary scrubber outlet is connected with level-one dehydrating tower entrance, and the outlet of level-one dehydrating tower is connected with flue；Flue is connected with three-level washing tower inlet, and the outlet of three-level scrubbing tower is connected with second level dehydrating tower entrance, and the outlet of second level dehydrating tower is connected with flue, and flue tail portion connects exhaust fan.Present invention reduces system resistance damage and energy consumptions, while multistage-combination washing, dehydration improve efficiency of dust collection, reduce operating cost.
Description
Technical field
The present invention relates to gas cleaning processing technology fields, and in particular to a kind of Wetting once dust collection of converter flue gas is net
Change integrated system.
Background technique
The converter of overwhelming majority iron and steel enterprise, China uses relatively backward old OG method dedusting at present, and water consumption power consumption is big, is
The weak link of steel industry energy-saving and emission-reduction.In addition to old OG method, China creates converter in recent years and the old dust pelletizing system of converter changes
The new OG method that has been all made of is made, old OG method mainly includes overflow Venturi tube, RD Venturi tube, dehydrator, and new OG method is in old OG method
On the basis of optimize, increase the new wet-scrubbing equipment such as spray column, circular seam Venturi tube, dehydrating tower, but due to still edge
The purification style of washing dust-laden coal gas is recycled with a large amount of turbid circulating waters, water consumption is still very high.The older OG method dust removing effects of new OG method
It improves, dusty gas concentration of emission can reach≤40 ~ 70mg/Nm after processing3, but be difficult to stablize during running
Ground controls within the scope of this discharge index, and following harsh with environmental protection index, and certain provinces and cities have put into effect compared with state
The more stringent provincial standard of family's standard, new OG method are difficult to meet≤20mg/Nm3Minimum discharge requirement.
Circular seam Venturi tube is the core equipment that new OG method plays the role of refined dedusting, is Venturi tube structure, dusty gas with
Aisle spare shrink flow velocity and be gradually increased, reach maximum when into aditus laryngis, by such high speed the water atomization of supply throat
At fine drop, specific surface area be increased dramatically, and increase the contact area with dust in gas, to play dustproof function.But
Circular seam Venturi tube is also the maximum equipment of drag losses in system simultaneously, and new OG dust pelletizing system resistance about 22000 ~ 24000Pa is
System end needs to install high-power blower to overcome resistance, when Converter Oxigen Blowing, for reach environment protection emission requirement and in riser
Weight top height, so that pipe inner passage section product becomes smaller, circular seam Venturi tube drag losses account for the 60~70% of total system at this time,
At this moment wind pressure increases, and fan energy consumption increases.In this way to system bring main problem be energy consumption is high, system resistance damage is big, operation at
This height.
New OG method blower maintenance workload is big, first is that since the low draught fan impeller abrasion of efficiency of dust collection is very fast, on the other hand by
Cause flue gas moisture content high in system costs and poor dehydration results, moist dust easily adheres on draught fan impeller to destroy rotor
Dynamic balancing.The mode that continuous water spray in operation rinses impeller, and average 1.5 are usually taken to avoid draught fan impeller from gluing ash
Blower Housing high pressure water need to be dismantled within ~ 2 months and rinse impeller and casing internal, half a year needs overhaul to replace fan rotor.
Summary of the invention
The purpose of the present invention is to solve the above problem, provides purification efficiency height, and system resistance damage is small, low energy consumption, operation dimension
Protect a kind of Wetting once dust collection of converter gas cleaning integrated system at low cost.
To solve the above-mentioned problems, The technical solution adopted by the invention is as follows:
A kind of Wetting once dust collection of converter gas cleaning integrated system, which is characterized in that including first grade scrubber 11, second level
Scrubbing tower 12, three-level scrubbing tower 13, level-one dehydrating tower 14, second level dehydrating tower 15, first grade scrubber 11, secondary scrubber 12 and one
Grade dehydrating tower 14 is in steelshop, and three-level scrubbing tower 13 and second level dehydrating tower 15 are in outside steelshop, Vaporizing cooling
Flue outlet is connected with first grade scrubber 11, passes through system pressure regulating between the outlet of first grade scrubber 11 and 12 entrance of secondary scrubber
Pipe 17 is connected, and the outlet of secondary scrubber 12 is connected with 14 entrance of level-one dehydrating tower, the outlet of level-one dehydrating tower 14 and flue phase
Even；Flue is connected with 13 entrance of three-level scrubbing tower, and the outlet of three-level scrubbing tower 13 is connected with 15 entrance of second level dehydrating tower, second level
The outlet of dehydrating tower 15 is connected with flue, and flue tail portion connects exhaust fan 16.
Further, 11 main body of first grade scrubber is tower body, arranges multistage pressure atomizer 111, high-pressure atomization in tower body
Nozzle 111 is connect with water pipe.
Further, first grade scrubber 11, secondary scrubber 12, three-level scrubbing tower 13, level-one dehydrating tower 14, second level dehydrating tower
15, treatment tank 18 is drained into outside the washing water in system pressure regulating pipe 17, treated returns muddy water and pass through water pump for treatment tank
It is connect with the multistage pressure atomizer 111 of first grade scrubber 11.
Further, two-stage detergent nozzle 171 is equipped in system pressure regulating pipe 17, special hydraulic valve is arranged at system pressure regulating pipe top
172。
Further, secondary scrubber 12, three-level scrubbing tower 13 are multiphase air swirl scrubbing tower, and main body is tower body, tower
Body top is smoke inlet 011, and 3 to 5 detergent nozzles 012 are equipped at smoke inlet 011, and tower body lower part is exhanst gas outlet
012, inside tower body, water membrane formation device 013 is equipped with below detergent nozzle 012；
It is arranged below the liquid uniforming cap 014 of the water membrane formation device 013 including cone shape, liquid uniforming cap 014 in inner canister side wall
On spinning disk 015, inner canister be in cylindrical, 015 fore-and-aft tilt setting of spinning disk, annular spread on inner canister side wall,
015 other side of spinning disk is fixedly connected with tower body inner wall；
Below water membrane formation device 013 be arranged upper and lower opening cone shape liquid collecting bucket 016,016 upper opening diameter of liquid collecting bucket with
Tower body diameter is consistent, and liquid collecting bucket under shed is small with respect to upper opening diameter；
The water membrane formation device 013 and liquid collecting bucket 016 for the multilayer that is staggered from top to bottom inside tower body.
Further, under level-one dehydrating tower 14, second level dehydrating tower 15 are in double-cyclone cyclone separator, including cylinder, cylinder
The air inlet 021 in portion and the gas outlet 023 above spiral centrifugal Scroll inlet air stack 022, cylinder, the liquid below cylinder return
The recovered liquid outlet mouth 025 in receipts portion 024,024 bottom of liquid recovery part, body centre is equipped with the interior rotating plate 026 being vertically arranged, interior
026 upper end connector drum roof of rotating plate, interior 026 lower end of rotating plate connect 024 bottom of liquid recovery part, and interior rotating plate 026 is along cylinder diameter
To bending, a number of 026 bending direction of interior rotating plate is consistent, and annular configuration, interior 026 bending direction of rotating plate and inlet air stack
The hand of spiral is consistent；024 bottom of liquid recovery part is in positive round cone-shaped, and center tilts from top to bottom to periphery, recovered liquid outlet
Mouth 025 is set at 024 bottom margin of liquid recovery part.
The operation principle of the present invention is that:
The high-temperature flue gas generated in Converter Oxigen Blowing steelmaking process carries a large amount of dust and overflows into gasification cooling flue from converter,
Then flue gas enters first grade scrubber, and multistage pressure atomizer nebulizing spray, the cooled cooling of flue gas, while mist are arranged in tower
The water droplet of change absorbs the flue dust in flue gas.First grade scrubber muddy water enters spoil disposal water tank, and flue gas enters system pressure regulating by water tank
Pipe, system pressure regulating pipe lower disposed two-stage detergent nozzle, further washing cooling, hydraulic flap is arranged at system pressure regulating pipe top
Valve, by the opening degree of control special hydraulic valve come control channel area, so that micro-differential pressure is adjusted, to guarantee the coal of recycling
Gas quality.
Flue gas subsequently enters secondary scrubber, and smoke inlet 011 arranges 3 to 5 detergent nozzles 012, and tower is from top to bottom
The water membrane formation device 013 and liquid collecting bucket 016 for the multilayer that is staggered, tower diameter guarantee flue gas flow rate in 5m/s hereinafter, reducing smoke
Flow velocity extends gas-liquid contact time and contact area, strengthens the alternate mass-and heat-transfer process of solid gas liquid three.
Flue gas subsequently enters level-one dehydrating tower, and inlet air stack 013 is helical structure, and tower inner annular arrangement is several along cylinder diameter
To curved interior rotating plate, it is centrifuged condensation dehydration principle using two-stage eddy flow, removes water droplet in flue gas.
Flue gas enters three-level scrubbing tower and second level dehydrating tower from the outlet of level-one dehydrating tower, enters exhausting after washing dehydration again
Machine outlet.
After " three wash two de- " multistage-combination washing dehydration dedusting, converter chimney outlet dust content stably reaches≤
20mg/m3, meet minimum discharge standard, system entirety efficiency of dust collection reaches 98% or more.
Compared with prior art, the invention has the benefit that
(1) present invention cancels circumferential weld venturi device in new OG method, and dust pelletizing system resistance of the present invention is 13000 ~ 15000Pa, compared with
New OG genealogy of law system resistance reduces by 36 ~ 37.5%, blower power consumption is greatly reduced, to reduce system operation cost.Steel enterprise
If its old and new's OG method dust pelletizing system is transformed in industry, it is not required in addition purchase new blower, existing blower fully meets dust pelletizing system of the present invention
Demand, to save investment for trnasforming urban land cost.
(2) present invention makes the abundant washing, purifying of water by three-level washing using " three, which wash two, takes off " multistage-combination purification style
Dust in flue gas guarantees the dehydration efficiency of system entirety, greatly reduces flue gas moisture content especially with two-stage dewatering type,
Avoid the water droplet for largely having adsorbed dust as gas is discharged, to improve the efficiency of dust collection of system.Present system removes
Dirt efficiency reaches 98% or more, dusty gas concentration of emission≤20mg/m3, meet minimum discharge standard.
(3) present invention can reduce blower maintenance workload, and dust content is low after purification, and moisture content is small, can extend blower
Service life, rinsed cycle stretch-out 2 to 3 months of draught fan impeller and inner casing with high pressure water, the fan rotor period is replaced in overhaul
Extend 4 ~ 5 months.
(4) dust pelletizing system of the present invention is since the surface of whole wet process dust collection device and smoke contacts is comprehensively using moisture film
Soverlay technique, it is ensured that cleaner system non-scaling not tie up by dust stratification, the operation for greatly reducing once dust collection of converter device systems
Workload is protected, the maintenance operation cost of once dust collection of converter system entirety and the labor intensity and frequency of worker, dedusting are reduced
System is run whole the extension of maintenance operation time between overhauls(TBO) 6 months or more, and the stable operation for once dust collection of converter system provides
Overall technique guarantees.
(5) the cooling system nitrogen atomization traditional using hydraulic atomized substitution is atomized in dust pelletizing system of the present invention,
A large amount of nitrogen use levels are saved, overall operation cost is reduced.Improve the stability and economy of the operation of once dust collection of converter system.
(6) system fine tuning pressure and refined dedusting function all concentrate in one equipment of circular seam Venturi tube in new OG method, in reality
In operational process, only it is difficult both to take into account that dedusting environment friendly is up to standard and coal-gas recovering requirement by circumferential weld weight top adjusting.Present system
Micro- voltage regulation function and refined dedusting function is completely separable, it not only can guarantee steel-making complete period dust removing effects, and fine can must adjust
Micro-differential pressure makes coal gas of converter effectively recycle overall time and extends 1 minute or more, in coal gas CO content mean value improve 5% with
On.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of Wetting once dust collection of converter gas cleaning integrated system of the present invention；
Fig. 2 is the structural schematic diagram of secondary scrubber of the present invention, three-level scrubbing tower；
Fig. 3 is the structural schematic diagram of level-one dehydrating tower of the present invention, second level dehydrating tower；
Description of symbols: first grade scrubber -11, high pressure atomizing nozzle -111, secondary scrubber -12, three-level scrubbing tower -13,
Level-one dehydrating tower -14, exhaust fan -16, system pressure regulating pipe -17, two-stage detergent nozzle -171, hydraulic turns over second level dehydrating tower -15
Plate valve -172, treatment tank -18；
Smoke inlet -011, exhanst gas outlet -012, water membrane formation device -013, liquid uniforming cap -014, spinning disk -015, liquid collecting bucket -
016, detergent nozzle -017；
Air inlet -021, gas flue -022, gas outlet -023, liquid recovery part -024, recovered liquid outlet mouth -025, interior rotating plate -
026。
Specific embodiment
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Refering to shown in Figure of description 1, the present invention provides a kind of integrated system of Wetting once dust collection of converter gas cleaning
System, which is characterized in that de- including first grade scrubber 11, secondary scrubber 12, three-level scrubbing tower 13, level-one dehydrating tower 14, second level
Water tower 15, first grade scrubber 11, secondary scrubber 12 and level-one dehydrating tower 14 are in steelshop, three-level scrubbing tower 13 and two
Grade dehydrating tower 15 is in outside steelshop, and gasification cooling flue outlet is connected with first grade scrubber 11, and first grade scrubber 11 goes out
Mouth is connected between 12 entrance of secondary scrubber by system pressure regulating pipe 17, the outlet of secondary scrubber 12 and level-one dehydrating tower 14
Entrance is connected, and the outlet of level-one dehydrating tower 14 is connected with flue；Flue is connected with 13 entrance of three-level scrubbing tower, and three-level is washed
It washs the outlet of tower 13 to be connected with 15 entrance of second level dehydrating tower, the outlet of second level dehydrating tower 15 is connected with flue, flue tail portion
Connect exhaust fan 16.
Further, 11 main body of first grade scrubber is tower body, arranges multistage pressure atomizer 111, high-pressure atomization in tower body
Nozzle 111 is connect with water pipe.
First grade scrubber 11, secondary scrubber 12, three-level scrubbing tower 13, level-one dehydrating tower 14, second level dehydrating tower 15, system
Drain into treatment tank 18 outside washing water in surge pipe 17, treated returns muddy water and wash by water pump and level-one for treatment tank
The multistage pressure atomizer 111 for washing tower 11 connects.
Further, two-stage detergent nozzle 171 is equipped in system pressure regulating pipe 17, special hydraulic valve is arranged at system pressure regulating pipe top
172。
Refering to shown in Figure of description 2, further, secondary scrubber 12, three-level scrubbing tower 13 are multiphase air swirl
Scrubbing tower, main body are tower body, and tower body top is smoke inlet 011, are equipped with 3 to 5 detergent nozzles 017 at smoke inlet 011,
Tower body lower part is exhanst gas outlet 012, and inside tower body, water membrane formation device 013 is equipped with below detergent nozzle 017；
It is arranged below the liquid uniforming cap 014 of the water membrane formation device 013 including cone shape, liquid uniforming cap 014 in inner canister side wall
On spinning disk 015, inner canister be in cylindrical, 015 fore-and-aft tilt setting of spinning disk, annular spread on inner canister side wall,
015 other side of spinning disk is fixedly connected with tower body inner wall；
Below water membrane formation device 013 be arranged upper and lower opening cone shape liquid collecting bucket 016,016 upper opening diameter of liquid collecting bucket with
Tower body diameter is consistent, and liquid collecting bucket under shed is small with respect to upper opening diameter；
The water membrane formation device 013 and liquid collecting bucket 016 for the multilayer that is staggered from top to bottom inside tower body.
Refering to shown in Figure of description 3, further, level-one dehydrating tower 14, second level dehydrating tower 15 are double-cyclone cyclonic separation
Device, including the gas outlet above cylinder, the air inlet 021 of cylinder middle and lower part and spiral centrifugal Scroll inlet air stack 022, cylinder
023, the liquid recovery part 024 below cylinder, 024 bottom of liquid recovery part recovered liquid outlet mouth 025, body centre is equipped with perpendicular
The interior rotating plate 026 being directly arranged, interior 026 upper end connector drum roof of rotating plate, interior 026 lower end of rotating plate connect 024 bottom of liquid recovery part
Portion, interior rotating plate 026 is along cylinder radially bending, and a number of 026 bending direction of interior rotating plate is consistent, and annular configuration, interior rotating plate
026 bending direction is consistent with the inlet air stack hand of spiral；024 bottom of liquid recovery part be in positive round cone-shaped, center to periphery by
On tilt down, recovered liquid outlet mouth 025 be set to 024 bottom margin of liquid recovery part at.
Of the present invention time muddy water is first grade scrubber 11, secondary scrubber 12, three-level scrubbing tower 13, level-one dehydrating tower
14, second level dehydrating tower 15, drain into treatment tank 18 outside the washing water in system pressure regulating pipe 17 after, by polyacrylamide is added
Flocculation, sloping plate deposition etc. desilt obtained recycle-water after purified treatment.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, the description in above embodiments and description is only the present invention
Preference, the present invention do not limited by above-mentioned preference, without departing from the spirit and scope of the present invention, the present invention
Can also there are various changes and modifications, these changes and improvements are both fallen in the scope of protection of present invention.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of Wetting once dust collection of converter gas cleaning integrated system, which is characterized in that including first grade scrubber (11),
Secondary scrubber (12), three-level scrubbing tower (13), level-one dehydrating tower (14), second level dehydrating tower (15), first grade scrubber (11), two
Grade scrubbing tower (12) and level-one dehydrating tower (14) are in steelshop, and three-level scrubbing tower (13) and second level dehydrating tower (15) are in
Outside steelshop, gasification cooling flue outlet is connected with first grade scrubber (11), and first grade scrubber (11) outlet is washed with second level
It washs and is connected between tower (12) entrance by system pressure regulating pipe (17), secondary scrubber (12) outlet and level-one dehydrating tower (14) entrance
It is connected, level-one dehydrating tower (14) outlet is connected with flue；Flue is connected with three-level scrubbing tower (13) entrance, and three-level is washed
It washs tower (13) outlet to be connected with second level dehydrating tower (15) entrance, second level dehydrating tower (15) outlet is connected with flue, fume pipe
Road tail portion connects exhaust fan (16).
2. a kind of Wetting once dust collection of converter gas cleaning integrated system according to claim 1, which is characterized in that
First grade scrubber (11) main body is tower body, arranges multistage pressure atomizer (111) in tower body, high pressure atomizing nozzle (111) with
Water pipe connection.
3. a kind of Wetting once dust collection of converter gas cleaning integrated system according to claim 2, which is characterized in that
First grade scrubber (11) secondary scrubber (12), three-level scrubbing tower (13), level-one dehydrating tower (14), second level dehydrating tower (15), is
System surge pipe (17) in washing water outside drain into treatment tank (18), treatment tank treated return muddy water by water pump with
The multistage pressure atomizer (111) of first grade scrubber (11) connects.
4. a kind of Wetting once dust collection of converter gas cleaning integrated system according to claim 1, which is characterized in that
Two-stage detergent nozzle (171) is equipped in system pressure regulating pipe (17), special hydraulic valve (172) are arranged at system pressure regulating pipe top.
5. a kind of Wetting once dust collection of converter gas cleaning integrated system according to claim 1, which is characterized in that
Secondary scrubber (12), three-level scrubbing tower (13) are multiphase air swirl scrubbing tower, and main body is tower body, and tower body top is flue gas
Entrance (011), 3 to 5 detergent nozzles (012) are equipped at smoke inlet (011), and tower body lower part is exhanst gas outlet (012), tower
Water membrane formation device (013) is equipped with below internal portion, detergent nozzle (012)；
The water membrane formation device (013) includes the liquid uniforming cap (014) of cone shape, the setting of liquid uniforming cap (014) lower section in inner core
Spinning disk (015) on cylinder side wall, inner canister are in cylindrical, and spinning disk (015) fore-and-aft tilt setting, annular spread are in inner core
On cylinder side wall, spinning disk (015) other side is fixedly connected with tower body inner wall；
The cone shape liquid collecting bucket (016) of setting upper and lower opening, liquid collecting bucket (016) upper opening below water membrane formation device (013)
Diameter is consistent with tower body diameter, and liquid collecting bucket under shed is small with respect to upper opening diameter；
The water membrane formation device (013) and liquid collecting bucket (016) for the multilayer that is staggered from top to bottom inside tower body.
6. a kind of Wetting once dust collection of converter gas cleaning integrated system according to claim 1, which is characterized in that
Level-one dehydrating tower (14), second level dehydrating tower (15) are double-cyclone cyclone separator, the air inlet including cylinder, cylinder middle and lower part
(021) liquid recovery part below gas outlet (023), cylinder and above spiral centrifugal Scroll inlet air stack (022), cylinder
(024), the recovered liquid outlet mouth (025) of liquid recovery part (024) bottom, body centre are equipped with the interior rotating plate being vertically arranged
(026), interior rotating plate (026) upper end connector drum roof, interior rotating plate (026) lower end connect liquid recovery part (024) bottom, inward turning
Plate (026) is along cylinder radially bending, and a number of interior rotating plate (026) bending direction is consistent, and annular configuration, interior rotating plate
(026) bending direction is consistent with the inlet air stack hand of spiral；Liquid recovery part (024) bottom is in positive round cone-shaped, and center is outside
Week tilts from top to bottom, and recovered liquid outlet mouth (025) is set at liquid recovery part (024) bottom margin.
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| CN201710863867.3A CN109536667A (en) | 2017-09-22 | 2017-09-22 | A kind of Wetting once dust collection of converter gas cleaning integrated system |
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| CN201710863867.3A CN109536667A (en) | 2017-09-22 | 2017-09-22 | A kind of Wetting once dust collection of converter gas cleaning integrated system |
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| CN110894563A (en) * | 2019-12-24 | 2020-03-20 | 中国重型机械研究院股份公司 | Coal gas dehydration and dust removal device and method |
| CN111632462A (en) * | 2020-06-10 | 2020-09-08 | 北京博鹏中科环保科技有限公司 | Treatment method of water-containing flue gas of steel slag |
| CN113621752A (en) * | 2021-08-31 | 2021-11-09 | 东北大学 | Converter primary dust removal system capable of reducing particulate matter emission and use method thereof |
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| CN110894563A (en) * | 2019-12-24 | 2020-03-20 | 中国重型机械研究院股份公司 | Coal gas dehydration and dust removal device and method |
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| CN113621752B (en) * | 2021-08-31 | 2022-08-05 | 东北大学 | Converter primary dust removal system capable of reducing particulate matter emission and use method thereof |
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