CN107670440A - Waste gas purification apparatus in stainless steel slag handling process - Google Patents
Waste gas purification apparatus in stainless steel slag handling process Download PDFInfo
- Publication number
- CN107670440A CN107670440A CN201711191225.XA CN201711191225A CN107670440A CN 107670440 A CN107670440 A CN 107670440A CN 201711191225 A CN201711191225 A CN 201711191225A CN 107670440 A CN107670440 A CN 107670440A
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- CN
- China
- Prior art keywords
- waste gas
- steel slag
- stainless steel
- handling process
- gas purification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000002912 waste gas Substances 0.000 title claims abstract description 34
- 239000002893 slag Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 title claims abstract description 28
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 28
- 239000010935 stainless steel Substances 0.000 title claims abstract description 28
- 238000000746 purification Methods 0.000 title claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 32
- 239000007921 spray Substances 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000000926 separation method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005201 scrubbing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- -1 Venturi scrubbing Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
- B01D47/08—Spray cleaning with rotary nozzles
Abstract
The present invention relates to the purifier of caused waste gas in Technology of Steel Slag Processing, the specially waste gas purification apparatus in stainless steel slag handling process.Solve that existing cleaner easily blocks, disposal ability is small, resistance is big, thus can not be suitable for the problem of the waste gas purification stainless steel slag handling process.The purifier is connected in sequence by spray column, gas-liquid separator and demister, and the fluid injector of spray column is two layers；Gas-liquid separator is to be connected to S-shaped pipeline between spray column gas outlet and demister air inlet, being formed by bend pipe and straight tube concatenation；Demister includes the tank body with air inlet, gas outlet and the leakage fluid dram positioned at bottom, the frustum demisting inner core that the deflection plate that top surface is closed, bottom surface is open, the conical surface is uniformly arranged and fixed by circumferencial direction is formed is provided with tank body, gap is kept between adjacent baffle.The present invention is except in addition to the waste gas purification stainless steel slag handling process, it can also be used to the waste gas purification of other identical operating modes.
Description
Technical field
The present invention relates to the purifier of caused waste gas in Technology of Steel Slag Processing, specially in stainless steel slag handling process
Waste gas purification apparatus.
Background technology
Slag processing is production link last in steel plant process flow.There is its distinctive processing work for stainless steel slag
Skill:Slag ladle and carriage → slag bath → machinery is smashed to pieces →, which is boiled in a covered pot over a slow fire, which to be covered → fetching water → and boil in a covered pot over a slow fire material, → rises and covers that → cooling of fetching water → mechanical stirring → is fetched water
Cooling → entrucking outward transport.In each link of stainless steel slag handling process, substantial amounts of waste gas is produced.Stainless steel slag handles work
Caused exhaust gas properties are very special in skill：Waste gas is large-minded, tolerance fluctuation is violent, temperature is high, water vapour is more, dust content is high
And stickiness weight, hall space is huge in addition, sealing difference etc., and therefore, caused waste gas pollution control and treatment is in stainless steel slag handling process
Global problem.
Existing conventional cleaner, such as：Electric precipitation（It is dry, wet）, cyclone dust removal, bag-type dust, Venturi scrubbing, spray
The equipment such as tower, liquid column tower, foaming tower, tubulent contact tower, because equipment blocks, efficiency is low, resistance is big, power consumption is high, the small ＜ of disposal ability
100Km3The problems such as/h and be not used to the exhaust-gas treatment in stainless steel slag handling process, such as：Dust high viscosity, high solids,
High humidity（Steam）So that the equipment such as electric precipitation, cyclone dust removal, foaming tower, tubulent contact tower, bag-type dust is because viscous glutinous（Wall）Block and nothing
Method uses；Atm number and fluctuation so that the flue gas system resistance of Venturi scrubbing is big, is fitted to periodic job tolerance fluctuation
Answering property is poor, and system investments are big, and operating cost is high；Huge exhaust-gas treatment amount so that conventional spray column, liquid column tower, foaming tower,
The equipment such as tubulent contact tower, the requirement of operating mode can not be met in disposal ability, even if equipment component therein can use, because it is empty
The limitation of tower flow velocity, its is bulky, and efficiency is low.
The content of the invention
The existing cleaner of present invention solution easily blocks, disposal ability is small, resistance is big, thus can not be applied to stainless steel slag
A kind of the problem of waste gas purification in handling process, there is provided the waste gas purification apparatus in stainless steel slag handling process.
The present invention adopts the following technical scheme that realization：Waste gas purification apparatus in stainless steel slag handling process, by spraying
Leaching tower, gas-liquid separator and demister are connected in sequence, and the fluid injector of spray column is two layers, and every layer of nozzle ring is around spray column
Cylinder is uniform, and two layers of nozzle can improve spray quality；Gas-liquid separator is to be connected to spray column gas outlet and demister air inlet
Between, by bend pipe and the S-shaped pipeline that forms of straight tube concatenation, steam and grit mixture in gas, in gravity and by curved
In the presence of centrifugal force compound force field caused by pipe, they phase inter coagulation and are fully contacted during motion with duct wall
And condense and produce gas-liquid separation, while grit mixture is attached to inner-walls of duct particularly elbow internal wall, finally in duct wall table
Aggregation becomes big and come off in the liquid film of face, and gas-liquid separation of the gas in upper, liquid under is formed on the section of separator end；
Gas-liquid separation is carried out using S-shaped pipeline, not only gas treatment amount is big and device structure is simple, and separative efficiency is high；Demister includes
Tank body with air inlet, gas outlet and leakage fluid dram positioned at bottom, is provided with that top surface is closed, bottom surface is open, the conical surface in tank body
The frustum demisting inner core that the deflection plate being uniformly arranged and fixed by circumferencial direction is formed, gap, tank are kept between adjacent baffle
It is additionally provided with demisting inner core wiper mechanism in vivo；Existing demister（It is commonly called as folded plate demister）Demisting core plate it is usually flat
Or ridge type, and carry fixed cleaning device（Simplest wiper mechanism is exactly the sparge pipe sprayed to demisting inner core）, this
The demister feature of invention is the shape for changing demisting inner core, and the demisting inner core of frustum is not easily blocked, gas treatment amount
Greatly and occupy little space；Through the separated mixed gas of gas-liquid separator, when entering demister tank body, the liquid of lower floor is straight
The leakage fluid dram discharge through tank base is connect, particulate water droplet is contained on top（Mist）Gas, it is micro- in gas into demister cavity
Grain（Droplet）The Tortuous flow between deflection plate, constantly collided with deflection plate wall, according to particulate, inertia size is not during exercise
Together, when the direction of motion changes, caught by baffling plate surface liquid film, and therefore coacervating large particle drop, under gravity,
Removing is down slid along deflection plate, so as to realize the purpose of gas purification demisting；Qualified net gas outside gas outlet through arranging；It is trapped
In the particulate soil on deflection plate, the flushing through demisting inner core wiper mechanism, sewage is still discharged by bottom leakage fluid dram.
Waste gas purification apparatus in stainless steel slag handling process of the present invention（Also referred to as dynamic wave dedusting (device) machine
Group）Have the following advantages and effect：
(1) the present apparatus can be handled（Adapt to）High viscosity, high humility, high temperature, the waste gas of high dustiness, equipment do not block, and operation is just
Often, especially suitable for the waste gas purification in stainless steel slag handling process；
(2) the present apparatus pressure loss is small, unit resistance≤1200Pa, compared with Venturi scrubber similar in clean result, is only
Its 1/5~1/10, significantly reduce operating cost；
(3) present apparatus floor space is small, and compared with the similar tower equipment of washing principle, area is only their 20%；
(4) present apparatus disposal ability is big, separate unit（Set）Reach as high as 1000Km3/ h, it disclosure satisfy that the most of works of different scales enterprise
Dust removal requirement under the conditions of condition；
(5) present apparatus single-stage unit efficiency of dust collection >=95%, higher than the efficiency of dust collection of similar cleaner；
(6) present apparatus simple in equipment, operation part be few, convenience easy to maintenance, for the adaptable, resistance to of tolerance fluctuation
With, it is handy；Such as：Equipped with inspection platform, nozzle can be overhauled in the case of non-stop-machine, in a manner of pull；
(7) the present apparatus can also use the mode for being similar to pendulum building blocks, arbitrarily devised shape, especially fit according to the condition of site space
For the construction and upgrading of some extreme terrains or technological transformation project, therefore, except suitable for stainless steel slag handling process
Waste gas purification outside, it can also be used to the waste gas purification of other identical operating modes.
Purifier of the present invention（Dynamic wave dedusting (device) unit）In the stainless steel slag handling process production of Taiyuan Iron and Steel Co. company
Line, which carries out field test and industrial production, equipment performance and dust removing effects, can meet customer requirement；In running, unit is set
Standby normal operation, all technical reach design requirement, the tail gas dust content ＜ 30mg/M of discharge3, better than national standard.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view of the demisting inner core in demister.
In figure：1- spray columns, 2- gas-liquid separators, 3- demisters, 4- demisting inner cores, 5- deflection plates.
Embodiment
Waste gas purification apparatus in stainless steel slag handling process, connected successively by spray column 1, gas-liquid separator 2 and demister 3
Connect and form, the fluid injector of spray column 1 is two layers, and every layer of nozzle ring is uniform around spray column cylinder；Gas-liquid separator 2 is to be connected to
S-shaped pipeline between the gas outlet of spray column 1 and the air inlet of demister 3, being formed by bend pipe and straight tube concatenation；Demister 3 includes
Tank body with air inlet, gas outlet and leakage fluid dram positioned at bottom, is provided with that top surface is closed, bottom surface is open, the conical surface in tank body
The frustum demisting inner core 4 that the deflection plate 5 being uniformly arranged and fixed by circumferencial direction is formed, gap is kept between adjacent baffle 5,
Demisting inner core wiper mechanism is additionally provided with tank body.When it is implemented, the cylinder of spray column 1 is cylinder, air inlet is under cylinder
Portion is in unilateral or bilateral, and gas outlet is arranged at the top of cylinder by single port or twoport, and discharge outlet is arranged on cylinder body bottom.Spray column 1
Every layer of nozzle below be provided with annulus feed pipe, every layer of each nozzle all connects with annulus feed pipe, to realize central water supply.
Nozzle body is in external, to facilitate the maintenance of nozzle.Cylinder around spray column 1 is provided with inspection platform, to facilitate nozzle
Maintenance.Gas-liquid separator 2 is made up of three bend pipes and two straight tubes, and two of which straight tube is horizontal respectively and vertical configuration
State；Between the bending radius of bend pipe is 1~3 meter（1 meter, 1.5 meters, 2 meters, 2.5 meters, 3 meters can be selected during specific implementation）, so,
Ensure to produce sufficient centrifugal force when gas passes through bend pipe, again will not be because of the too small increase air resistance of elbow radius.Demister 3
Tank body be cylindrical type.Tank body air inlet is unilateral or bilateral, and tank body gas outlet is located at top by single port or twoport, and discharge outlet is set
Put in bottom.Deflection plate 5 on demisting inner core 4 is the plate body of middle bending, increases reflecting surface by bending, to improve demisting effect
Fruit.
The purifier is the negative pressure method of operation, and waste gas is drawn into the air inlet of spray column 1, after two level is washed, sludge
The big portion of water discharges from the drain pump of the bottom of spray column 1, containing a certain amount of grit mixture, steam gas from the top of spray column 1
Discharge；During operation, waste gas is pumped into spray column 1 with 15m/s flow velocity, and this flow velocity can form gas-liquid momentum balance（Principle）And
Structure one is homogeneous in spray column 1, gas-liquid mixing region fierce turbulence, that liquid surface quickly updates, real in this region
The processes such as existing gas scrubbing, chemical reaction, cooling, make most of in waste gas（Purpose thing）Pollutant is removed or separated；Spray
The gas that tower 1 is discharged enters gas-liquid separator 2, on the section of its end, forms gas in upper, two layer knot of the liquid under
Structure, complete gas-liquid separation operation；The gas that gas-liquid separator 2 is discharged enters demister 3, and the liquid of lower floor is directly through demister
The leakage fluid dram discharge of tank base；Contain particulate water droplet in upper strata（Mist）Gas, into demister cavity in purified, it is qualified
Net gas outside blower fan through arranging.The particulate soil retained by demisting inner core 4, cleaned mechanism are rinsed, and its sewage is still by demister tank body
Arranged outside the leakage fluid dram of bottom.
Claims (9)
1. the waste gas purification apparatus in a kind of stainless steel slag handling process, it is characterised in that by spray column（1）, gas-liquid separator
（2）And demister（3）It is connected in sequence, spray column（1）Fluid injector be two layers, every layer of nozzle ring is equal around spray column cylinder
Cloth；Gas-liquid separator（2）To be connected to spray column（1）Gas outlet and demister（3）It is between air inlet, by bend pipe and straight tube string
The S-shaped pipeline connect；Demister（3）Including the tank body with air inlet, gas outlet and leakage fluid dram positioned at bottom, in tank body
It is provided with the deflection plate that top surface is closed, bottom surface is open, the conical surface is uniformly arranged and fixed by circumferencial direction（5）The frustum demisting of formation
Inner core（4）, adjacent baffle（5）Between keep gap, demisting inner core wiper mechanism is additionally provided with tank body.
2. the waste gas purification apparatus in stainless steel slag handling process according to claim 1, it is characterised in that waste gas with
15m/s flow velocity is pumped into spray column（1）It is interior.
3. the waste gas purification apparatus in stainless steel slag handling process according to claim 1 or 2, it is characterised in that spray column
（1）Every layer of nozzle below be provided with annulus feed pipe, every layer of each nozzle all connects with annulus feed pipe.
4. the waste gas purification apparatus in stainless steel slag handling process according to claim 1 or 2, it is characterised in that spray column
（1）Nozzle body be in external.
5. the waste gas purification apparatus in stainless steel slag handling process according to claim 1 or 2, it is characterised in that around spray
Drench tower（1）Cylinder be provided with inspection platform.
6. the waste gas purification apparatus in stainless steel slag handling process according to claim 1 or 2, it is characterised in that solution-air
Separator（2）It is made up of three bend pipes and two straight tubes, two of which straight tube is horizontal respectively and plumbness.
7. the waste gas purification apparatus in stainless steel slag handling process according to claim 6, it is characterised in that bend pipe it is curved
Between bilge radius are 1~3 meter.
8. the waste gas purification apparatus in stainless steel slag handling process according to claim 1 or 2, it is characterised in that in demisting
Core（4）On deflection plate（5）For the plate body of middle bending.
9. the waste gas purification apparatus in stainless steel slag handling process according to claim 7, it is characterised in that demisting inner core
（4）On deflection plate（5）For the plate body of middle bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711191225.XA CN107670440A (en) | 2017-11-24 | 2017-11-24 | Waste gas purification apparatus in stainless steel slag handling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711191225.XA CN107670440A (en) | 2017-11-24 | 2017-11-24 | Waste gas purification apparatus in stainless steel slag handling process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107670440A true CN107670440A (en) | 2018-02-09 |
Family
ID=61149317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711191225.XA Pending CN107670440A (en) | 2017-11-24 | 2017-11-24 | Waste gas purification apparatus in stainless steel slag handling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107670440A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116999864A (en) * | 2023-08-02 | 2023-11-07 | 安徽同速科技有限公司 | High-salt organic wastewater treatment evaporation tower and foam catcher thereof |
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| CN207546086U (en) * | 2017-11-24 | 2018-06-29 | 太原钢城企业公司第二金属结构厂 | Waste gas purification apparatus in stainless steel slag treatment process |
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2017
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| US20060088452A1 (en) * | 2003-01-31 | 2006-04-27 | Hajime Okura | Exhaust gas processing device, and method of using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116999864A (en) * | 2023-08-02 | 2023-11-07 | 安徽同速科技有限公司 | High-salt organic wastewater treatment evaporation tower and foam catcher thereof |
| CN116999864B (en) * | 2023-08-02 | 2024-04-12 | 安徽同速科技有限公司 | High-salt organic wastewater treatment evaporation tower and foam catcher thereof |
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