CN204601915U - A kind of fume desulfurizing tower with demister - Google Patents
A kind of fume desulfurizing tower with demister Download PDFInfo
- Publication number
- CN204601915U CN204601915U CN201520167958.XU CN201520167958U CN204601915U CN 204601915 U CN204601915 U CN 204601915U CN 201520167958 U CN201520167958 U CN 201520167958U CN 204601915 U CN204601915 U CN 204601915U
- Authority
- CN
- China
- Prior art keywords
- demister
- deflection plate
- desulfurizing tower
- fume desulfurizing
- plate combination
- 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.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a kind of fume desulfurizing tower with demister, belongs to technical field of environment protection equipment.It comprises tower body and flue gas cleaner, also comprises demister; This demister is removably connected on the inwall of described tower body, and is positioned at the top of described flue gas cleaner; Described demister comprises at least one deflection plate combination demister and at least one wire mesh demister.The utility model has the advantages that resistance is little, operating cost is low, adaptable, stable, has very high removal and arresting efficiency especially for ammonia and ammonium salt class aerosol thereof.
Description
Technical field
The utility model relates to technical field of environment protection equipment, refers to a kind of fume desulfurizing tower with demister especially.
Background technology
Coal-burning power plant is the primary discharge source of the atmosphere pollutions such as flue dust, sulfur dioxide, nitrogen oxide.Thermal power plant pollutant emission national standard " fossil-fuel power plant atmospheric pollutant emission standard " (GB13223-2011) of issue is combined in July, 2011 according to Chinese Ministry of Environmental Protection and State Administration for Quality Supervision and Inspection and Quarantine, require to specify to thermal power plant's Air Pollutant Emission concentration limit, examination and controlling, further increase and comprise flue dust, SO
2at interior Air Pollutant Emission control overflow, be defined in territorial development density higher, environmental bearing capacity starts to weaken, or atmospheric environment capacity is less, ecological environment frailty, easily serious atmospheric problem of environmental pollution occurs and needs the area strictly controlling Air Pollutant Emission.On January 1st, 2012 plays newly-built thermal power generation boiler and performs new flue dust, SO
2emission limit, on July 1st, 2014 plays existing thermal power generation boiler and performs new flue dust, SO
2, NOx emission limit value, wherein key area must perform soot emissions limit value be 20mg/m
3, SO
2emission limit is 50mg/m
3, NOx emission limit value is 100mg/m
3.
Accelerate that haze is administered in China, under the background endeavouring to eliminate common people's " trouble of cardiopulmonary ", the time is regarded as the Coal Combustion in China power industry of haze arch-criminal, has entered into one " minimum discharge epoch ".Minimum discharge is that environmental protect quality, to the pollution control behavior that pollutant emission limit generally more sternly requires in brake specific exhaust emission standard in order to reduce coal-burning power plant's normal atmospheric pollutant emission.Minimum discharge is exactly the discharge standard making the atmosphere pollutants emission standards of coal unit reach Natural Gas unit, i.e. smoke dust discharge concentration 5mg/Nm
3, SO
2concentration of emission 35mg/Nm
3, NOx emission concentration 50mg/Nm
3.
SCR (SCR) technology or SNCR (SNCR) technology is adopted according to actual flue gas NOx concentration, control denitration device operating parameter, add the effect of ammonia process of desulfurization process to denitration, flue gas NOx concentration of emission can be made to reach minimum discharge requirement < 50mg/m
3.
The ammonia-process desulfurization technique adopted, notes the control of each parameter in operation, can make flue gas SO
2concentration of emission reaches minimum discharge requirement < 35mg/m
3.
After de-NOx, while flue gas enters the desulfurization of wet method ammonia method desulfurizing system after further denitration, carry the mechanical dirt that particle diameter is very little in flue gas, the water smoke having dissolved ammonium salt drip, aerosol.Now need the problem mainly solved to be exactly reduce the concentration of emission of droplet and flue dust, namely reduce sol particle thing---ammonium salt and aerosol in discharge flue gas, make outlet dust contained flue gas concentration, reach minimum discharge requirement < 5mg/Nm
3.
Current domestic thermoelectricity large-sized boiler removes the cleaner mainly wet-esp of superfine droplet particle after being used for desulfurizer, this equipment dedusting (mist) is effective, but volume is large, perishable, floor space is comparatively large, and energy consumption is high, has sewage to need process, thus investment is large, and operating cost is higher.
Utility model content
The purpose of this utility model is to provide a kind of Be very effective, the fume desulfurizing tower with demister that operating cost is low.
The technical solution of the utility model is achieved in that a kind of fume desulfurizing tower with demister, comprises tower body and flue gas cleaner, also comprises demister; This demister is removably connected on the inwall of described tower body, and is positioned at the top of described flue gas cleaner; Described demister comprises at least one deflection plate combination demister and at least one wire mesh demister.
Further, described deflection plate combination demister is removably connected on described tower body by brace summer; Described wire mesh demister is removably connected on described tower body by brace summer.
Further, the shape of described deflection plate combination demister is flat or ridge type.
Further, described deflection plate combination demister forms by several deflection plates are superimposed.
Further, described deflection plate is provided with lip ring.
Further, described wire mesh demister is by standard type silk screen with heavy duty detergent silk screen is superimposed forms.
Further, the number of plies of described standard type silk screen is 10 ~ 20 layers; The number of plies of described heavy duty detergent silk screen is 15 ~ 30 layers.
Further, the quantity of described deflection plate combination demister is 2 ~ 3 grades.
Further, the quantity of described wire mesh demister is 2 ~ 3 grades.
In the utility model, standard type silk screen refers to specific area 330m
2/ m
3, porosity: 0.981, monolayer net is thick is the silk screen of 4mm; Heavy duty detergent silk screen refers to specific area 480m
2/ m
3, porosity: 0.977, monolayer net is thick is the silk screen of 3.125mm.
The utility model demisting efficiency is high, its action principle is: carry fine liquid droplet in the gas phase secretly, through demister, adhered to or trap, through repeated multiple times trapping droplet, minimum droplet agglomeration, be coalesced as large drop, drop under gravity, move downward, continue the droplet carried secretly in captured gas simultaneously, the droplet of growing up flows to the bottom of demister, the gravity of drop self is relied on to drop down, in trapping process, inside due to whole demister is filled with the droplet trapped, enhance the trapping ability of demister itself, when making normally to work, the demisting efficiency of demister increases substantially, minimum droplet can be trapped effectively and remove.
Demister is for the droplet of more than 5 μm, and its removal efficiency can reach more than 99%, and also have certain removal ability for the droplets of≤5 μm and aerosol, the pressure loss is at 30 ~ 50mmH
2o.
The beneficial effects of the utility model are: by arranging demister above flue gas cleaner, the specific area of this demister is large, greatly can increase the contact area of aerosol and liquid film, and increase gas liquid ratio, strengthen ammonia, ammonium salt, aerocolloidal removal effect.Compared with prior art, the utility model resistance is little, and operating cost is low, adaptable, stable, has very high removal and arresting efficiency especially for ammonia and ammonium salt class aerosol thereof.Be characterized in: flux is large, and the pressure loss little (about 200Pa/m), separative efficiency is high, reaches more than 90% to the removal efficiency of sol particle thing.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only one of them embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of deflection plate;
Fig. 3 is the deflection plate combination demister structural representation of multiple parallel combination.
In figure: 1-tower body, 2-wire mesh demister, 3-deflection plate combination demister, 4-brace summer, 5-deflection plate, 6-lip ring, 7-flue gas cleaner.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only one of them embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1-2, a kind of fume desulfurizing tower with demister, comprises tower body 1 and flue gas cleaner 7, also comprises demister; This demister is removably connected on the inwall of tower body 1, and is positioned at the top of flue gas cleaner 7; Demister comprises at least one deflection plate combination demister 3 and at least one wire mesh demister 2.
Deflection plate combination demister 3 is removably connected on tower body 1 by brace summer 4; Wire mesh demister 2 is removably connected on tower body 1 by brace summer 4.
Wherein, the shape of deflection plate combination demister 3 is flat or ridge type.When the shape of deflection plate combination demister 3 is ridge type, the angle of the angle α between inclined-plane and horizontal plane is >=20 °, forms a space, can increase specific area better, collect droplet, carry out demist.While improving demisting efficiency, reduce cost, preferably, the angle of the angle α between inclined-plane and horizontal plane is 20 ° ~ 35 °.If angle is excessive, space is just excessive, and the tower sections of installing demister is too high, will increase cost when manufacturing or install demister.
Deflection plate 5 is superimposed forms by several for deflection plate combination demister 3.Wherein, being removably connected by support clips between deflection plate, for the distance between fixing deflection plate, in order to keep that there is between deflection plate certain gap, demist can be carried out better.
In order to allow fog form effective obstruction better, deflection plate 5 is provided with lip ring 6.Concrete, lip ring 6 is in hook solid.
Wire mesh demister 2 is by standard type silk screen and heavy duty detergent silk screen is superimposed forms.
Concrete, the number of plies of standard type silk screen is 10 ~ 20 layers; The number of plies of heavy duty detergent silk screen is 15 ~ 30 layers.
The quantity of deflection plate combination demister 3 is 2 ~ 3 grades, can be described as one-level deflection plate combination demister and secondary deflection plate combination demister.
The quantity of wire mesh demister 2 is 2 ~ 3 grades.
In use, flue gas first through deflection plate combination demister 3, then through wire mesh demister 2, is then discharged.
Demist effect analysis:
Enter this device gas speed for 2.5m/s time, enter one-level deflection plate combination demister gas speed about 3m/s, secondary deflection plate combination demister be about 3.2m/s, through its critical separation particles of corrugated sheet demist section 15 ~ 25 μm.Silk screen foam removal section critical separation particles about 5 μm.
Demister drag overall: Δ P=250 ~ 300Pa.
Demisting efficiency: large with sulfur removal technology aerosol generation relation, under the prerequisite of conservative control trapping technique, free total ammonia≤5mg/Nm
3, fume emission particle concentration 5 ~ 15mg/Nm
3.Calculate by gas turbine benchmark oxygen, be equivalent to gas turbine benchmark oxygen flue gas concentration 2 ~ 5mg/Nm
3.
For the fume desulfurizing tower that diameter is slightly large, can be combined by multiple ridge type deflection plate that demister 3 is parallel to be combined, as Fig. 3.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. there is a fume desulfurizing tower for demister, comprise tower body (1) and flue gas cleaner (7), it is characterized in that: also comprise demister; This demister is removably connected on the inwall of described tower body (1), and is positioned at the top of described flue gas cleaner (7); Described demister comprises at least one deflection plate combination demister (3) and at least one wire mesh demister (2).
2. a kind of fume desulfurizing tower with demister according to claim 1, is characterized in that: described deflection plate combination demister (3) is removably connected on described tower body (1) by brace summer (4); Described wire mesh demister (2) is removably connected on described tower body (1) by brace summer (4).
3. a kind of fume desulfurizing tower with demister according to claim 1, is characterized in that: the shape of described deflection plate combination demister (3) is flat or ridge type.
4. a kind of fume desulfurizing tower with demister according to claim 1, is characterized in that: described deflection plate combination demister (3) forms by several deflection plates (5) are superimposed.
5. a kind of fume desulfurizing tower with demister according to claim 3, is characterized in that: described deflection plate (5) is provided with lip ring (6).
6. a kind of fume desulfurizing tower with demister according to claim 1, is characterized in that: described wire mesh demister (2) is by standard type silk screen and heavy duty detergent silk screen is superimposed forms.
7. a kind of fume desulfurizing tower with demister according to claim 6, is characterized in that: the number of plies of described standard type silk screen is 10 ~ 20 layers; The number of plies of described heavy duty detergent silk screen is 15 ~ 30 layers.
8. a kind of fume desulfurizing tower with demister according to claim 1, is characterized in that: the quantity of described deflection plate combination demister (3) is 2 ~ 3 grades.
9. a kind of fume desulfurizing tower with demister according to claim 1, is characterized in that: the quantity of described wire mesh demister (2) is 2 ~ 3 grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520167958.XU CN204601915U (en) | 2015-03-25 | 2015-03-25 | A kind of fume desulfurizing tower with demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520167958.XU CN204601915U (en) | 2015-03-25 | 2015-03-25 | A kind of fume desulfurizing tower with demister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204601915U true CN204601915U (en) | 2015-09-02 |
Family
ID=53954505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520167958.XU Active CN204601915U (en) | 2015-03-25 | 2015-03-25 | A kind of fume desulfurizing tower with demister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204601915U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105617821A (en) * | 2016-03-25 | 2016-06-01 | 亚太环保股份有限公司 | Combined process for realizing ultra-low emission desulphurization and dust removal |
| CN105727699A (en) * | 2016-04-06 | 2016-07-06 | 亚太环保股份有限公司 | Ultralow emission method and device for split-type flue gas desulfurization and dust removal |
| CN105964126A (en) * | 2016-07-04 | 2016-09-28 | 钱诚 | Folding fan type desulfurization absorption tower tray |
| CN113318541A (en) * | 2021-06-30 | 2021-08-31 | 柯美瑞(唐山)环保科技有限公司 | Rolling mill flue gas ultralow emission purifier |
-
2015
- 2015-03-25 CN CN201520167958.XU patent/CN204601915U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105617821A (en) * | 2016-03-25 | 2016-06-01 | 亚太环保股份有限公司 | Combined process for realizing ultra-low emission desulphurization and dust removal |
| CN105727699A (en) * | 2016-04-06 | 2016-07-06 | 亚太环保股份有限公司 | Ultralow emission method and device for split-type flue gas desulfurization and dust removal |
| CN105964126A (en) * | 2016-07-04 | 2016-09-28 | 钱诚 | Folding fan type desulfurization absorption tower tray |
| CN113318541A (en) * | 2021-06-30 | 2021-08-31 | 柯美瑞(唐山)环保科技有限公司 | Rolling mill flue gas ultralow emission purifier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103480223B (en) | Wet-type fume purification system and purification method for high smoke speed PM2.5 and pollutant | |
| CN204543996U (en) | Coal-fired plant flue gas multi-pollutant deep purifying controls coupled system | |
| CN103007670B (en) | Electrostatic fabric filter for controlling fine particles PM2.5 and mercury collaborative removal | |
| CN204601915U (en) | A kind of fume desulfurizing tower with demister | |
| CN204005957U (en) | A kind of cooperation-removal system that realizes the minimum discharge of coal steam-electric plant smoke multi-pollutant | |
| CN205145894U (en) | Industrial waste gas's SOx/NOx control dust removal integration purification treatment system | |
| CN205517261U (en) | Minimum discharge of many pollutants of industry coal fired boiler flue gas is desorption system in coordination | |
| CN204320062U (en) | A kind of high effective flue gas cleaning system | |
| CN103721554B (en) | The electric defogging method of the fine particle in trapping wet-method desulfurized fume and device | |
| CN203610038U (en) | Efficient combined purifying tower for performing desulfurization and wet-type electrostatic dust collection on coal-fired flue gas | |
| CN205435424U (en) | Synchronous SOx/NOx control demercuration system | |
| CN105983308A (en) | Method and device for removing pollutants in gas | |
| CN102527177B (en) | Dust collection and mercury removal integrated electric-bag composite dust collector | |
| CN206881322U (en) | Efficient silk screen demister | |
| CN103657323A (en) | Wet electrostatic reinforced apparatus and method for simultaneous removal of PM2.5, SO2 and Hg | |
| CN205042607U (en) | Wet electrostatic precipitator | |
| CN202270577U (en) | Device for removing PM2.5 (particle matter less than 2.5 micrometers in diameter) in smoke | |
| CN204601917U (en) | A kind of demister | |
| CN204294022U (en) | A kind of rotary blowing bag collector with in-depth filtration | |
| CN203494347U (en) | Wet-desulphurization system with electrostatic humidification device and anode defogger | |
| CN104740968A (en) | Super demisting apparatus | |
| CN203507747U (en) | Wet-process desulfurization system provided with electrostatic humidifying device | |
| CN203777877U (en) | Electrostatic composite fume dedusting and demisting device | |
| CN204563845U (en) | A kind of annular concentric polar-plate-type dust-removing and desulfurizing integrated device | |
| CN205435417U (en) | In coordination with demercuration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 650106 No. 199, science and technology road, Kunming hi tech Development Zone, Yunnan Patentee after: ASIA-PACIFIC ENVIRONMENTAL CORP. Address before: 650106 No. 199, science and technology road, hi tech Industrial Development Zone, Yunnan, Kunming Patentee before: Yatai Environmental Engineering Designing Research Co., Ltd., Yunnan Prov. |