CN204170549U - A kind of desulfidation tail gas high-efficiency demisting apparatus - Google Patents
A kind of desulfidation tail gas high-efficiency demisting apparatus Download PDFInfo
- Publication number
- CN204170549U CN204170549U CN201420556778.6U CN201420556778U CN204170549U CN 204170549 U CN204170549 U CN 204170549U CN 201420556778 U CN201420556778 U CN 201420556778U CN 204170549 U CN204170549 U CN 204170549U
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- China
- Prior art keywords
- cavity
- demist
- tail gas
- fiberfill
- element type
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- Expired - Lifetime
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- 238000011001 backwashing Methods 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 239000007791 liquid phase Substances 0.000 claims abstract description 10
- 230000008676 import Effects 0.000 claims abstract description 8
- 239000012071 phase Substances 0.000 claims abstract description 8
- 238000005260 corrosion Methods 0.000 claims abstract description 4
- 230000007797 corrosion Effects 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 36
- 238000004140 cleaning Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000007792 gaseous phase Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 abstract description 7
- 239000007787 solid Substances 0.000 abstract description 3
- 238000012856 packing Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 7
- 230000007935 neutral effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a kind of desulfidation tail gas high-efficiency demisting apparatus, and demister comprises: cavity, filer element type demist inner core and backwashing system, cavity cover on filer element type demist core surface, and backwashing system is arranged on core inner in filer element type demist, filer element type fiber demist inner core comprises inner frame, fiberfill, outer sleeve and backwashing system, inner frame is by upper and lower end cap, bracing frame is formed, fiberfill selects high accuracy corrosion resistant fiber, desulfidation tail gas enters in demister cavity by the import of demister gas phase, packing layer is entered by fiberfill outer surface, drop is adsorbed on fiber, along with the flowing of gas, drop becomes large gradually, and depart from packing section at the outer surface of fiberfill layer, demister bottom is carried by downspout, discharged by liquid-phase outlet, after the pressure drop of demist inner core increases to limiting value, backwashing system works, solid particle in fiberfill is recoiled away, demist inner core is regenerated.
Description
Technical field
The utility model belongs to energy-conserving and environment-protective technical field, is specifically related to a kind of raising separative efficiency and precision, the droplet content in desulfidation tail gas is reduced to floor level, provides the desulfidation tail gas high-efficiency demisting apparatus of more easy cleaning and installation simultaneously.
Background technology
Wet absorption tower, in running, easily produces the droplet that particle diameter is 10 ~ 60 μm.Not only containing moisture in droplet, also containing sulfuric acid, sulfate, SO
2deng, if do not properly not settled, any droplet entering chimney, reality is exactly by SO
2be discharged in air.Therefore, the requirement of demist technique is proposed desulfidation tail gas.Cleaned gas will carry out demist before entering air.
At present, in desulfidation tail gas demist application, main employing Flat defroster and ridge type demister two kinds.
Flat defroster: demister modules adopts the demister arrangements of horizontal structure form.Flat defroster can be installed in absorption tower, and flue gas, for flowing vertically to, is called the board-like demister of horizontal or is called for short Flat defroster; Flat defroster also can be installed vertically on absorption tower outlet horizontal flue, is called rectilinear board-like demister or chimney flue type demister, and general employing Two-layer Beam supports or fixes.
Ridge type demister: demister modules adopts the demister arrangements of ridge structure form." people " font, rhombus and circle is divided into by profile.The advantage of ridge-roof type demister is that flue gas is less than the mean flow rate of horizontal cross-section in tower by the flow velocity of blade normal, like this, even if flue gas flow rate is higher in tower, when by demister, because circulation area increases, flue gas flow rate is reduced.
Electricity demist: various pending gas, owing to being subject to Ultraviolet radiation, the effect that high temperature and radioactivity pair are penetrated.Make the charged molecule and the electronics that all contain 1-2% in often kind of neutral gas, after this humid gas with suspended particles enters electrofilter electric field, owing to being applied with sufficiently high DC voltage on the corona polar line of electrofilter, launch in a large number to the electronics of receiving electrode high-speed motion from corona discharge electrode.Under the effect of electric field force, the electronics high-speed impact neutral molecule of high-speed motion, one or several outer-shell electrons are got from gas molecule, neutral molecule is changed to positive ion and free electron, these electronics derived from continue high-speed motion under electric field action, clash into new neutral molecule and make it ionize, so promptly deriving from the ion and electronics that make new advances, gas generation avalanche type ionization near corona polar line, around electrode wires, 2mm forms ionized region.Meanwhile, electronegative particle and electronics are trapped by the droplet of transition region in the motion process of receiving electrode, and neutral particle is charged and grow up, and continue, to receiving electrode motion, finally deposit at receiving electrode and charge neutrality occurs.
Flat and ridge type demister all adopts blade construction, and this structure demisting efficiency is low, and separation accuracy is low, and solid particle easily deposits on blade, easily there is dead angle in cleaning process, and the inconvenient difficulty of mounting and dismounting, investment is large.Electric demist application conditions is harsher simultaneously, and structure is more complicated, and electric quantity consumption is large.
Utility model content
For the problems referred to above, main purpose of the present utility model is to provide and a kind ofly can improves separative efficiency and precision, the droplet content in desulfidation tail gas is reduced to floor level, provides the desulfidation tail gas high-efficiency demisting apparatus of more easy cleaning and installation simultaneously.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of desulfidation tail gas high-efficiency demisting apparatus, described demister comprises: cavity, filer element type demist inner core and backwashing system, cavity cover on filer element type demist core surface, and backwashing system is arranged on core inner in filer element type demist;
Cavity is provided with gas phase import, gaseous phase outlet, liquid-phase outlet and water inlet pipe mouth, wherein, gas phase import is arranged on the position of cavity side by bottom, gaseous phase outlet is arranged on the top of cavity, and liquid-phase outlet is arranged on the bottom of cavity, and water inlet pipe mouth is arranged on the position of cavity side by top;
Described filer element type demist inner core comprises inner frame, fiberfill and outer sleeve; Described inner frame comprises upper end cover, bottom end cover and bracing frame; Below bottom end cover, downspout is installed;
Described backwashing system comprises inlet tube, flexible pipe, cleaning hose and nozzle, and described inlet tube one end is connected with the water inlet pipe mouth on cavity by flange, and the described inlet tube other end is connected with cleaning hose by flexible pipe; Nozzle comprises several, is all fixedly mounted on cleaning hose.
In preferred specific embodiment of the present utility model, described fiberfill is high accuracy corrosion resistant fiber; Described outer sleeve is the outer sleeve of the cylinder type wire mesh cage structures preventing fiberfill from coming off.
In preferred specific embodiment of the present utility model, described cavity is also provided with other mouth of pipe I, other mouth of pipe II, these two mouths of pipe are separately positioned near the top of cavity and the position of bottom.
In preferred specific embodiment of the present utility model, described cavity is column type, circular platform type or ridge-roof type.
In preferred specific embodiment of the present utility model, described downspout adopts screw thread to be connected with bottom end cover.
In preferred specific embodiment of the present utility model, described nozzle is fixedly linked by screw thread and cleaning hose.
Positive progressive effect of the present utility model is: the utility model structure is simple, not easily blocks, and be convenient to cleaning, separation accuracy is high, and decay resistance is strong, handling safety.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the device that the utility model adopts.
Fig. 2 is desulfidation tail gas demist inner core demist microcosmic schematic diagram in the utility model.
Detailed description of the invention
The utility model preferred embodiment is provided, to describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the overall structure schematic diagram of the device that the utility model adopts, as shown in Figure 1: the device that the utility model adopts comprises: cavity, filer element type demist inner core and backwashing system, cavity cover on filer element type demist core surface, and backwashing system is arranged on core inner in filer element type demist.
Cavity is provided with gas phase import 1, gaseous phase outlet 2, liquid-phase outlet 3 and water inlet pipe mouth 4, wherein, gas phase import 1 is arranged on the position of cavity side by bottom, gaseous phase outlet 2 is arranged on the top of cavity, liquid-phase outlet 3 is arranged on the bottom of cavity, and water inlet pipe mouth 4 is arranged on the position of cavity side by top.
Filer element type demist inner core comprises inner frame 7, fiberfill 8 and outer sleeve 9; Described inner frame 7 comprises upper end cover 10, bottom end cover 11 and bracing frame 12; Downspout 13 is installed below bottom end cover 11.Described fiberfill 8 selects high accuracy corrosion resistant fiber; Described outer sleeve 9 is cylinder type wire mesh cage structures, prevents fiberfill from coming off.
Backwashing system comprises inlet tube 14, flexible pipe 15, cleaning hose 16 and nozzle 17, and inlet tube 14 one end is connected with the water inlet pipe mouth 4 on cavity A by flange, and inlet tube 14 other end is connected with cleaning hose 16 by flexible pipe 15; Nozzle 17 comprises several, is all fixedly mounted on cleaning hose 16.
Cavity is also arranged as required other mouth of pipe I5 and other mouth of pipe II6, these two mouths of pipe are separately positioned on top and the bottom of close cavity, facilitate cavity emergency or need repairing when clearing up cavity to use.
Cavity is according to the tolerance size of required process, and cavity body structure can select column type, circular platform type or ridge-roof type or other shape.
Filer element type demist inner core in the utility model can realize the high-accuracy high-efficiency demist of desulfidation tail gas, and its precision can reach more than 2um drop and remove 95%, more than 5um drop removal 100%.
Filer element type demist inner core gas is little by initial drop after filter core, about 5 ~ 10KP.
In concrete implementation process of the present utility model, downspout 13 adopts screw thread to be connected with inner frame bottom end cover 11, and the drop departing from inner core is delivered to demister bottom by downspout 13.
In concrete implementation process of the present utility model, nozzle 17 is connected with cleaning hose 16 by screw thread, and the number of nozzle 17 suitably can increase and decrease according to filter core length.
Fig. 2 is desulfidation tail gas demist inner core demist microcosmic schematic diagram in the utility model.C place in Fig. 2: drop is adsorbed on fiber; B place: drop becomes large on fiber; A place: drop increases to and to a certain degree departs from fiber afterwards.The direction that arrow signal liquid downward in Fig. 2 flows out, the direction that arrow signal gas upwards flows out.
Utilize the demist technique of said apparatus, comprise the following steps:
(1), desulfidation tail gas is delivered in demister cavity by gas phase import 1.
(2), desulfidation tail gas in demister cavity, enter in fiberfill by core outer surface in filer element type demist, drop is adsorbed on fiber, and along with the flowing of gas, drop becomes large gradually, and filer element type demist inner core inner surface depart from fiberfill 8.
(3), the gas that removes drop discharged by gaseous phase outlet 2, and the drop departing from filler is delivered to demister bottom by downspout, be accumulated to a certain amount of after discharged by liquid-phase outlet 3.
(4), when the pressure drop of filer element type demist inner core reaches the limit values, demister quits work, open liquid-phase outlet 3 and backwashing system, water is delivered to backwashing system inlet tube 14 with the pressure of 0.3 ~ 1MPaG, high pressure back-flushing is after flexible pipe 15 and cleaning hose 16, sprayed by nozzle 17, after soaking fibre bed, solid particle is under certain kickback pressure and hydrodynamic cleaning effect, remove from fibre bed, discharge through equipment liquid-phase outlet 3 together with back-flushing, to realize the regeneration of filer element type demist inner core.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall within the scope of claimed the utility model, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. a desulfidation tail gas high-efficiency demisting apparatus, is characterized in that: described demister comprises: cavity, filer element type demist inner core and backwashing system, cavity cover on filer element type demist core surface, and backwashing system is arranged on core inner in filer element type demist;
Cavity is provided with gas phase import, gaseous phase outlet, liquid-phase outlet and water inlet pipe mouth, wherein, gas phase import is arranged on the position of cavity side by bottom, gaseous phase outlet is arranged on the top of cavity, and liquid-phase outlet is arranged on the bottom of cavity, and water inlet pipe mouth is arranged on the position of cavity side by top;
Described filer element type demist inner core comprises inner frame, fiberfill and outer sleeve; Described inner frame comprises upper end cover, bottom end cover and bracing frame; Below bottom end cover, downspout is installed;
Described backwashing system comprises inlet tube, flexible pipe, cleaning hose and nozzle, and described inlet tube one end is connected with the water inlet pipe mouth on cavity by flange, and the described inlet tube other end is connected with cleaning hose by flexible pipe; Nozzle comprises several, is all fixedly mounted on cleaning hose.
2. desulfidation tail gas high-efficiency demisting apparatus according to claim 1, is characterized in that: described fiberfill is high accuracy corrosion resistant fiber; Described outer sleeve is the outer sleeve of the cylinder type wire mesh cage structures preventing fiberfill from coming off.
3. desulfidation tail gas high-efficiency demisting apparatus according to claim 1, is characterized in that: described cavity is also provided with other mouth of pipe I, other mouth of pipe II, and these two mouths of pipe are separately positioned near the top of cavity and the position of bottom.
4. desulfidation tail gas high-efficiency demisting apparatus according to claim 1, is characterized in that: described cavity is column type, circular platform type or ridge-roof type.
5. desulfidation tail gas high-efficiency demisting apparatus according to claim 1, is characterized in that: described downspout adopts screw thread to be connected with bottom end cover.
6. desulfidation tail gas high-efficiency demisting apparatus according to claim 1, is characterized in that: described nozzle is fixedly linked by screw thread and cleaning hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556778.6U CN204170549U (en) | 2014-09-25 | 2014-09-25 | A kind of desulfidation tail gas high-efficiency demisting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556778.6U CN204170549U (en) | 2014-09-25 | 2014-09-25 | A kind of desulfidation tail gas high-efficiency demisting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204170549U true CN204170549U (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420556778.6U Expired - Lifetime CN204170549U (en) | 2014-09-25 | 2014-09-25 | A kind of desulfidation tail gas high-efficiency demisting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204170549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258653A (en) * | 2014-09-25 | 2015-01-07 | 上海安赐机械设备有限公司 | High-efficiency desulfurization tail gas demisting device and process |
-
2014
- 2014-09-25 CN CN201420556778.6U patent/CN204170549U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258653A (en) * | 2014-09-25 | 2015-01-07 | 上海安赐机械设备有限公司 | High-efficiency desulfurization tail gas demisting device and process |
| CN104258653B (en) * | 2014-09-25 | 2016-04-27 | 上海安赐环保科技股份有限公司 | A kind of desulfidation tail gas high-efficiency demisting apparatus and demist technique |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201201 Shanghai, Pudong New Area Jin Tang Road, No. 2, block B, 145 Patentee after: SHANGHAI ANHORN ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 201201 Shanghai, Pudong New Area Jin Tang Road, No. 2, block B, 145 Patentee before: SHANGHAI ANHORN MECHANICAL EQUIPMENT Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20150225 |
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| CX01 | Expiry of patent term |