CN105169910B - Furnace flue gas dedusting and pernicious gas synergistic purification device - Google Patents
Furnace flue gas dedusting and pernicious gas synergistic purification device Download PDFInfo
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- CN105169910B CN105169910B CN201510556668.9A CN201510556668A CN105169910B CN 105169910 B CN105169910 B CN 105169910B CN 201510556668 A CN201510556668 A CN 201510556668A CN 105169910 B CN105169910 B CN 105169910B
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- flue gas
- furnace flue
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- sack cleaner
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Abstract
The present invention relates to a kind of furnace flue gas dedusting and pernicious gas synergistic purification devices.Including sack cleaner 1, automatic control system 9, sack cleaner 1 includes air inlet 10, middle case 11, upper box 12, ash bucket 13, filter bag 14, deashing device 15；Elbow 2, cooler 3, switch valve 4, absorber 5, plenum chamber 6, exhaust outlet 7 are set gradually from top to down in the outlet side of upper box 12；NH is provided at air inlet 103Injector 8；Signal wire and sack cleaner 1, cooler 3, switch valve 4, absorber 5, NH are passed through by flanged joint or welding, automatic control system 9 between elbow 2, cooler 3, switch valve 4, absorber 5, plenum chamber 6, exhaust outlet 7 behind the outlet of upper box 123Injector 8 is connected.Fine particle dust and a variety of pernicious gases in present apparatus energy while purifying smoke, by sack cleaner, absorber and NH3Injector organic composite can simplify technological process for flue gas purification, reduce floor space, reduce project investment and operation energy consumption into set of device.
Description
Technical field
The invention belongs to the industrial furnaces such as field of environment protection boiler smoke, flue gas of refuse burning, steel-smelting electric furnace flue gas, sintering flue gas
The purification techniques field of kiln flue gas, and in particular to a kind of furnace flue gas dedusting and pernicious gas synergistic purification device, in high temperature cigarette
While gas dedusting, moreover it is possible to the SO in purifying smoke2、NOX, mercury, the pernicious gases such as dioxin.
Background technology
Often containing dust, SO in industrial furnace flue gas2、NOX, mercury, the pollutants such as dioxin, according to environmental requirement, these are dirty
Dye object must be purified, and can be discharged after reaching discharge standard.
Gas cleaning is usually what is implemented step by step in engineering, leads to the equipment plural serial stage of flue gas purification system, i.e., individually
Catalytic reactor is set to remove the NO in flue gasXOr dioxin, sack cleaner is separately provided to remove dust in flue gas, it is single
Desulphurization plant is solely set to remove SO in flue gas2Etc..These purifiers are typically independently arranged, are not associated with, and start
Time be also not necessarily the same, entire flue gas purification system takes up an area big, and investment is high, high energy consumption, also tends to limit arrangement by place and be stranded
It is difficult.Shortage removes the purification equipment of multiple pollutant with set of device simultaneously in reality.
The patent document of number of patent application 2014100217687.7 discloses a kind of flue-gas granule and gaseous pollutant
Removal device is cooperateed with, it includes high-temperature flue gas bag hose, catalytic reactor and automatic control system, and is combined into an entirety.
Catalytic reactor, sack cleaner removal dust particle are installed in the outlet of sack cleaner, catalytic reactor removes smoke abatement
NO in gasX（Or dioxin）Gaseous pollutants are waited, realize synergistic purification.But due to being catalysis reaction, this catalytic reactor is not
SO can be removed2、, other pollutants such as mercury, therefore the device has certain limitation, suitable for being not required to the occasion of desulfurization, alternatively, at it
Downstream is installed by desulfurizer again.
Invention content
The purpose of the present invention is in view of the deficiency of the prior art, propose a kind of furnace flue gas dedusting and harmful gas
Body synergistic purification device, while flue gas ash removal, moreover it is possible to remove SO in flue gas2、、NOX, mercury, a variety of harmful gas such as dioxin
Body realizes various pollutants of fume collaboration removal in one apparatus, to reduce occupation of land, investment and operation energy consumption.
The present invention technical solution be：A kind of furnace flue gas dedusting and pernicious gas synergistic purification device, including bag
Formula deduster, elbow, cooler, switch valve, absorber, plenum chamber, exhaust outlet, NH3Injector, automatic control system；Bag
Formula deduster includes air inlet, middle case, upper box, ash bucket, filter bag, deashing device, and air inlet is mounted on middle case air inlet side
To side, middle case top installation upper box, filter bag is suspended on the card of upper box, deashing device is set in upper box, ash
Bucket is mounted on the lower section of middle case；Elbow, cooler, switch valve, suction are set gradually from top to down in the outlet side of upper box
Adnexa, plenum chamber, exhaust outlet；NH is provided at air inlet3Injector；Elbow, cooler behind upper box outlet, switching valve
It is removed between door, absorber, plenum chamber, exhaust outlet by flanged joint or welding, automatic control system by signal wire and pocket type
Dirt device, cooler, switch valve, absorber, NH3Injector is connected.
Further, the absorber is the device for having adsorption function to multicomponent gas, and adsorbent can be activity
Charcoal, activated carbon fibre, molecular sieve, zeolite etc., adsorbent regard absorption object and determine.Adsorber structure can be it is box,
Can also be drawer type, bottom plate is metallic porous sheet or gauze, absorber frame and switch valve flanged joint.
Further, the setting quantity of the absorber can change, and setting quantity is more than or equal to 1, depending on flue gas
Size is measured, absorber can be 2,3 or more, 2 and 2 or more adsorbers parallel operations.When certain absorber adsorbs
During saturation, automatic control system sends out instruction, closes its corresponding inlet and outlet switch valve, and the absorber is offline, carries out again
Life is drawn it out, the absorber more renewed, and the absorber of extraction concentrates regeneration, and other absorbers still work as usual at this time；It beats
Driving outlet switch valve into, after regeneration or new absorber can put into operation, and so on.
Further, the cooler is a kind of heat exchanger of air-water form, and snakelike metal winding pipe is set in heat exchanger,
Or finned bend pipe, walk cooling water in pipe, pipe it is outer walk flue gas, the water supply of cooler is adjusted by automatic control system, is come
Control flue gas cool-down amplitude.There are three the effects of cooler, first, reducing flue-gas temperature, is conducive to improve adsorption effect；Second is that
Prevent flue-gas temperature excessively high, activated carbon catches fire；Third, UTILIZATION OF VESIDUAL HEAT IN.
Further, the switch valve can be electrically operated valve or operated pneumatic valve or the valve that surges.
Further, the NH3Injector is mounted on sack cleaner entrance, and structure has nozzle type（Point spray
It penetrates）, playpipe（Line sprays）Or injection grid（It sprays in face）Etc. forms.NH3It, can be by a part of NO as reducing agentXIt is reduced into N2
And H2O is left NOXAbsorber purifies.NH3Emitted dose adjusted by automatic control system.
Further, the sack cleaner can be pulse jetting deashing sack cleaner or back-blowing is clear
Grey sack cleaner.
The operation principle of furnace flue gas dedusting of the present invention and pernicious gas synergistic purification device is：Furnace flue gas from
The air inlet of sack cleaner enter after with NH3The NH of injector injection3Mixing, part NOXIt is reduced into N2And H2O；Flue gas passes through again
Sock filtration removes dust particle；Flue gas after filtering enters absorber after cooling down by cooler, removes SO herein2、
NOX, mercury, a variety of pernicious gases, the purified flue gas such as dioxin be pooled to plenum chamber, finally discharged from exhaust outlet, it is so far, complete
Into the dedusting of flue gas fine particle and pernicious gas multi-pollutant synergistic purification；It is automatic to control when certain absorber adsorption saturation
System processed sends out instruction, closes its corresponding inlet and outlet switch valve, and the absorber is offline, is regenerated or drawn it out,
The absorber more renewed, the absorber of extraction concentrate regeneration, and other absorbers still work as usual at this time；NH3The injection of injector
Amount is adjusted by automatic control system；The water supply of cooler is adjusted by automatic control system, to control flue gas cool-down width
Degree；Sack cleaner deashing sends out instruction also by automatic control system, and deashing device starts to work, to filter bag ash removal, comes off
Dust fall into ash bucket, periodically drain.
The beneficial effects of the present invention are：Fine particle dust and a variety of pernicious gases in energy while purifying smoke, really
Furnace flue gas multi-pollutant synergistic purification is realized, by sack cleaner, absorber and NH3Injector organic composite is set with into one
It puts, technological process for flue gas purification can be simplified, reduce floor space, reduce project investment and operation energy consumption, be suitble to newly-built environmentally friendly item
Mesh and environmental transformation project.
Description of the drawings
Fig. 1 is furnace flue gas dedusting and pernicious gas synergistic purification device elevation.
Fig. 2 is furnace flue gas dedusting and pernicious gas synergistic purification device side view.
In figure：1. sack cleaner；2. elbow；3. cooler；4. switch valve；5. absorber；6. plenum chamber；7. row
Gas port；8. NH3Injector；9. automatic control system；10. air inlet；11. middle case；12. upper box；13. ash bucket；14. filter
Bag；15. deashing device.
Specific embodiment
As shown in attached drawing 1,2, furnace flue gas dedusting proposed by the present invention and pernicious gas synergistic purification device can pass through
In the following manner is implemented.Specific installation steps are as follows：
（1）, installation sack cleaner 1, i.e., ash bucket 13 be mounted on middle case 11 lower section, air inlet 10 be mounted on middle case
NH is installed in 11 airintake direction sides at air inlet 103Injector 8,11 top of middle case installation upper box 12, filter bag 14 are suspended on
On the card of upper box 12, setting deashing device 15 in upper box 12.
（2）, installation absorber 5, i.e. the upper box in sack cleaner 1（12）Outlet side installs elbow successively from top to down
2nd, cooler 3, switch valve 4, absorber 5, switch valve 4, plenum chamber 6, exhaust outlet 7.
（3）, installation automatic control system 9, pass through signal wire and sack cleaner 1, cooler 3, switch valve 4, absorption
Device 5, NH3Injector 8 is connected.
（4）, connect flue gas, flue gas enter after device with NH3The NH that injector 8 is blown3Mixing, part NOXIt is reduced into N2With
H2O；Flue gas filters again through filter bag 14, removes dust particle；Flue gas after filtering enters absorber after cooling down by cooler 3
5, SO is removed herein2、、NOX, mercury, a variety of pernicious gases, the purified flue gas such as dioxin be pooled to plenum chamber 6, finally from row
Gas port 7 is discharged, and so far, completes the dedusting of flue gas fine particle and pernicious gas multi-pollutant synergistic purification.
（5）, when any one 5 adsorption saturation of absorber in the absorber 5, automatic control system 9 sends out instruction, close
Its corresponding inlet and outlet switch valve 4 is closed, the absorber 5 is offline, it is regenerated or is drawn it out, the absorber more renewed,
The absorber of extraction concentrates regeneration, and other absorbers 5 still work as usual at this time.
（6）, operation when NH3The emitted dose of injector 8 is adjusted by automatic control system 9.
（7）, operation when by automatic control system 9 adjust cooler 3 cooling water inflow, to control flue gas cool-down amplitude.
（8）, instruction is sent out by automatic control system 9, ash-cleaner for dust remover 15 is started to work, to 14 deashing of filter bag,
The dust to come off is fallen into ash bucket 13, is periodically drained.
Claims (9)
1. a kind of furnace flue gas dedusting and pernicious gas synergistic purification device, including sack cleaner（1）, automatic control system
（9）, sack cleaner（1）Including air inlet（10）, middle case（11）, upper box（12）, ash bucket（13）, filter bag（14）, deashing
Device（15）；Air inlet（10）Mounted on middle case（11）Airintake direction side, middle case（11）Top is installed by upper box（12）, filter
Bag（14）It is suspended on upper box（12）Card on, in upper box（12）Interior setting deashing device（15）, ash bucket（13）It is mounted on
Middle case（11）Lower section, it is characterized in that in upper box（12）Outlet side set gradually elbow from top to down（2）, cooler
（3）, switch valve（4）, absorber（5）, plenum chamber（6）, exhaust outlet（7）；Air inlet（10）Place is provided with NH3Injector（8）；
Upper box（12）Elbow behind outlet（2）, cooler（3）, switch valve（4）, absorber（5）, plenum chamber（6）, exhaust outlet（7）
Between pass through flanged joint or welding, automatic control system（9）Pass through signal wire and sack cleaner（1）, cooler（3）, cut
Change valve（4）, absorber（5）、NH3Injector（8）It is connected；Absorber（5）Setting quantity be more than or equal to 1；Absorber
（5）Structure is box or drawer type, and bottom plate is metallic porous sheet or gauze, and absorber frame connects with switch valve flange
It connects；Cooler（3）It is a kind of heat exchanger of air-water form.
2. a kind of furnace flue gas dedusting according to claim 1 and pernicious gas synergistic purification device, it is characterised in that institute
State absorber（5）When quantity is more than or equal to 2, absorber（5）Using parallel way.
3. a kind of furnace flue gas dedusting and pernicious gas synergistic purification device according to claim 1, it is characterized in that absorber
（5）Interior to be equipped with adsorbent, adsorbent is activated carbon.
4. a kind of furnace flue gas dedusting and pernicious gas synergistic purification device according to claim 1, it is characterized in that absorber
（5）Interior to be equipped with adsorbent, adsorbent is activated carbon fibre.
5. a kind of furnace flue gas dedusting and pernicious gas synergistic purification device according to claim 1, it is characterized in that absorber
（5）Interior to be equipped with adsorbent, adsorbent is molecular sieve.
6. a kind of furnace flue gas dedusting and pernicious gas synergistic purification device according to claim 1, it is characterized in that absorber
（5）Interior to be equipped with adsorbent, adsorbent is zeolite.
7. a kind of furnace flue gas dedusting and pernicious gas synergistic purification device according to claim 1, it is characterized in that switching valve
Door（4）It is electrically operated valve, operated pneumatic valve or the valve that surges.
8. a kind of furnace flue gas dedusting and pernicious gas synergistic purification device according to claim 1, it is characterized in that NH3Injection
Device（8）Structure be nozzle, playpipe or injection grid form.
9. a kind of furnace flue gas dedusting and pernicious gas synergistic purification device according to claim 1, it is characterized in that pocket type removes
Dirt device（1）It is pulse jetting deashing sack cleaner or anti-blow cleaning dust sack cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556668.9A CN105169910B (en) | 2015-09-06 | 2015-09-06 | Furnace flue gas dedusting and pernicious gas synergistic purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556668.9A CN105169910B (en) | 2015-09-06 | 2015-09-06 | Furnace flue gas dedusting and pernicious gas synergistic purification device |
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| Publication Number | Publication Date |
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| CN105169910A CN105169910A (en) | 2015-12-23 |
| CN105169910B true CN105169910B (en) | 2018-06-15 |
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|---|---|---|---|---|
| CN107051196A (en) * | 2017-05-27 | 2017-08-18 | 盐城市兰丰环境工程科技有限公司 | A kind of desulphurization denitration deduster |
| CN107744672A (en) * | 2017-11-15 | 2018-03-02 | 农业部规划设计研究院 | A kind of TSP VOCs integrations removing means and method |
| CN108671698A (en) * | 2018-05-13 | 2018-10-19 | 湖南钜晟环保科技工程有限公司 | A kind of exhaust gas adsorption box |
| CN118371074B (en) * | 2024-06-19 | 2024-09-03 | 内蒙古佳源环保科技有限公司 | Flue gas dust collector and SOx/NOx control system |
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| CN105169910A (en) | 2015-12-23 |
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