CN202224007U - Rod grid water film dust remover - Google Patents
Rod grid water film dust remover Download PDFInfo
- Publication number
- CN202224007U CN202224007U CN2011201235082U CN201120123508U CN202224007U CN 202224007 U CN202224007 U CN 202224007U CN 2011201235082 U CN2011201235082 U CN 2011201235082U CN 201120123508 U CN201120123508 U CN 201120123508U CN 202224007 U CN202224007 U CN 202224007U
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- water
- excellent grid
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- 239000000428 dust Substances 0.000 title claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 39
- 239000007921 spray Substances 0.000 claims description 25
- 239000000779 smoke Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 21
- 239000003546 flue gas Substances 0.000 abstract description 21
- 238000012856 packing Methods 0.000 abstract description 7
- 239000003500 flue dust Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 12
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 239000012717 electrostatic precipitator Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 238000010410 dusting Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a bar bars water film deduster, it mainly includes bar bars water film tower (1), and bar bars water film tower (1) inside has bar bars layer (2), and every 3 bar bars are article font and arrange in bar bars layer (2), are provided with water-locator (3) above bar bars layer (2). The utility model discloses a replace the packing layer with the stick bars, realized high-efficient dust removal and avoided the scale deposit problem of packed tower again. Is especially suitable for purifying coal-fired flue gas.
Description
Technical field
The utility model relates to a kind of wet scrubber, specifically, relates to a kind of excellent grid water dust scrubber, in particular, relates to a kind of efficient excellent grid water dust scrubber that is similar to packed tower.
Background technology
The flue gas that flue gas, particularly coal-burning power plant are discharged comprises volume of smoke.Flue dust is treated as not, then is discharged into to be prone in the atmosphere form floating dust and fall ash, serious environment pollution.
At present, internal and international emission request for flue dust is more and more stricter.Before 1980, " industry " three wastes " discharging tentative standard " (GBJ 4-1973) regulation that thermal power plant carries out, smoke discharge amount is by the chimney height restriction, and utilizing high chimney emission countermeasure efficiency of dust collection is 80%～90% can be up to standard." coal-burning power plant's atmosphere pollutants emission standards " (GB 13223-1991) regulation in 1991, dust concentration then will reach 2000mg/Nm
3" thermal power plant's atmosphere pollutants emission standards " (GB 13223-1996) in 1996 brings up to 200～600mg/Nm with the dust exhausting concentration limit value
3" thermal power plant's atmosphere pollutants emission standards " (GB 13223-2003) in 2003 further improved discharge standard, and it stipulates newly-built fired power generating unit dust exhausting concentration execution 50mg/Nm
3Standard.The provincial standard DB11/139-2002 of Beijing " boiler pollutant comprehensive discharge standard " regulation, newly-built coal-burning boiler dust exhausting concentration is carried out 30mg/Nm
3Standard.In the face of more and more stricter dust emission standard, how to develop the technology of high-effective dust-removing, become the active demand of this area.
Present dust collection method mainly contains dry dust removal and wet dust removal two big classes, and dry dust removal mainly comprises bag-type dusting and electrostatic precipitation two big classes again.
Bag-type dusting utilizes the filter bag Chalk-dust filtering.Sack cleaner is a kind of dry type dust filtration device, and it is applicable to and captures tiny, dry, non-fiber dust.Filter bag adopts the filter cloth or the nonwoven felt of weaving to process, and utilizes the filtration of fabric that dusty gas is filtered, when dusty gas gets into sack cleaner; Big, the heavy dust of particle; Because the effect of gravity settles down, and falls into ash bucket, contain gas than fine dusts the time through filtrate; Dust is purified gas by detention.But along with dust the gathering of filter material surface, can make the resistance of deduster too high, thereby cause the air quantity of dust pelletizing system significantly to descend.Therefore, after the resistance of deduster reaches certain numerical value, timely deashing, can not destroy bonding layer during deashing simultaneously, otherwise efficiency of dust collection can descend, this just causes dust removal operation not carry out continuously.Simultaneously, because the flue dust high-speed motion produces frictional force, the while flue gas comprises oxysulfide and nitrogen oxide is acid; Cause equipment is produced corrosion; Therefore sack cleaner was changed a filter bag in general 3 years, changed a secondary joist in 5 years, caused the equipment operation cost to increase.
The operation principle of electrostatic precipitator is to utilize high voltage electric field to make flue gas generation ionization, and the dust in the air-flow is charged under electric field action and flow separation.Negative pole is processed by the plain conductor of different section shape, is sparking electrode.Positive pole is processed by the metallic plate of different geometries, is collecting electrode.The performance of electrostatic precipitator receives the influence of three factors such as dust characteristic, equipment structure and flue gas flow rate.The ratio resistance of dust is the index of estimating electric conductivity, and it has direct influence to efficiency of dust collection.Lower excessively than resistance; Grit is difficult to remain on the collecting electrode, causes it to return to air-flow, compares too high in resistance; The grit electric charge that arrives collecting electrode is difficult for emitting; Between knoisphere, form voltage gradient and can produce partial breakdown and electric discharge phenomena, these situation all can cause efficiency of dust collection to descend, so electrostatic precipitator is relatively stricter to equipment requirements.
No matter be sack cleaner or electrostatic precipitator; Its process object can only be single flue dust; Can not remove the oxysulfide in the flue gas, nitrogen oxide and heavy metal, simultaneously, it need take up room separately; Can not integrate with other unit, therefore limited bigger when rebuilding old equipment.
Wet scrubber is commonly called as " water deduster ", and it is that dusty gas is contacted with liquid (water) closely, utilizes the inertial collision of water droplet and particle and the device that other effects capture particle or particle is increased.According to the purification mechanism of wet scrubber, can it roughly be divided into seven types: (1) gravity spray washer, (2) cyclone scrubber; (3) self-excitation spray jet scrubber, (4) plate type washing device, (5) padding washing device; (6) Venturi scrubber, (7) mechanical induction spray jet scrubber.
To the use of spray liquid, or be directly to spray through water-locator or shower in the wet scrubber, it produces drop assembles with the soot dust granule collision, can not produce to have more high efficiency liquid film, and the utilization rate of spray liquid is low, causes the energy consumption increase; Be as the padding washing device,, effectively increased the detersive efficiency of flue dust through the contact surface of packing medium increase flue gas and spray liquid; But because the part has quiet liquid zone to exist in the packing layer, in this zone, spray liquid flows slow even static; And flue dust is the high temperature dust, and its performance classes can be created on similar concrete solid matter like cement when contacting with water; Dust can gather in this quiet liquid zone and condense, and forms incrustation attached on the filler, along with the growth of running time; This incrustation layer thickness increases, and causes packing layer to stop up, and then influences the treatment effeciency of flue dust.
The purpose of the utility model is, overcomes the deficiency of prior art, replaces packing layer with excellent grid layer, and a kind of excellent grid water dust scrubber is provided, and has both realized the high efficient mixed of gas-liquid, has avoided the packing layer scale problems again.
The utility model content
The wet scrubber of the utility model is excellent grid water dust scrubber, and it mainly comprises excellent grid moisture film tower 1, and excellent grid moisture film tower 1 inside has excellent grid layer 2, and per 3 excellent grid are the isosceles triangle arrangement in the excellent grid layer 2, above excellent grid layer 2, are provided with water-locator 3.
Water-locator 3 is communicated with spray liquid circulatory system fluid; Spray liquid to be provided to excellent grid layer 2; The spray liquid circulatory system mainly comprises circulation liquid pool 7, circulating pump 8, and circulation liquid pool 7 is communicated with excellent grid moisture film tower 1 bottom flow, and is communicated with water-locator 3 fluids through circulating pump 8.
Rod grid moisture film tower 1 bottom has smoke inlet 4, and the top has exhanst gas outlet 5, is provided with dust concentration sensor 6 at smoke inlet 4 and exhanst gas outlet 5, and sensor 6 links to each other with central control computer.
The useful technique effect of the utility model is: be used on the purificationization of coal-fired flue-gas, the temperature of flue gas makes the part water evaporates form steam and fine mist, helps the coalescence of superfine dust; Again through flue gas, water, excellent grid three's interaction, realize dust inertial collision, stick, effect such as diffusion, reached effective elimination to flue dust in the flue gas.
Description of drawings
Fig. 1 is the structure chart of the utility model rod fence wet dust separator
The specific embodiment
As shown in Figure 1; The excellent grid water dust scrubber of the utility model mainly comprises excellent grid moisture film tower 1; Rod grid moisture film tower 1 bottom has smoke inlet 4, and the top has exhanst gas outlet 5, has excellent grid layer 2 in the space between smoke inlet 4 and exhanst gas outlet 5; Per 3 excellent grid are the isosceles triangle arrangement in the rod grid layer 2, and excellent grid layer 2 top are provided with water-locator 3.Rod grid moisture film tower 1 bottom is communicated with circulation liquid pool 7 fluids, and circulation liquid pool 7 connects water-locator 3 through circulating pump 8.
As optimal technical scheme, excellent grid layer 2 and water-locator 3 can do from bottom to top excellent grid layer, water-locator, excellent grid layer, water-locator repeat be provided with, repeat number is 2-7, preferred 2-4.
The material of rod grid can adopt fiberglass, rubber, the antiseptic metal material of process etc., preferred glass steel.The rod grid are isosceles triangle and arrange; Spacing between rod grid and the excellent grid; Can set according to on-the-spot process conditions and concrete technological requirement, the person of ordinary skill in the field has the technical capability of confirming excellent grid spacing, so the utility model no longer limits said spacing.
For realizing automation of operation management or telemanagement, preferably with exhanst gas outlet 5 places dust concentration sensor 6 is set at smoke inlet 4, sensor 6 links to each other with central control computer.
In when operation, the flue gas from coal-burning boiler etc. gets into excellent grid moisture film tower 1 from smoke inlet 4, and flue gas passes excellent grid layer 2 from bottom to top, the spray liquid counter current contacting under with spray in the water-locator 3.Spray liquid by with the collision of excellent grid, in excellent grid layer 2, produce liquid net, liquid film or drop, flue gas and said liquid net, liquid film or droplet collision carry out mass transfer and the concurrent biochemical reaction of heat transfer.Flue dust in the flue gas is constantly assembled when contacting with spray liquid, and particle progressively increases and gets into spray liquid.
Flue gas through washing leaves excellent grid moisture film tower 1 from exhanst gas outlet 5; Spray liquid gets into circulation liquid pool 7 from excellent grid moisture film tower 1 bottom; After optional removal of impurities, regeneration or adding fresh spray liquid, pump into water-locator 3 through circulating pump 8, thereby accomplish the circulation of spray liquid.
For realizing automation of operation management or telemanagement; Dust concentration sensor 6 monitorings that are arranged on smoke inlet 4 obtain the initial concentration of flue dust in the flue gas; This initial concentration is transferred to central control computer; Central control computer through the supply of circulating pump 8 control spray liquids, thereby reaches the clean result of controlling flue dust according to pre-set programs.
The dust concentration sensor 6 that is arranged on exhanst gas outlet 5 is monitored the concentration that obtains washing flue dust in the flue gas of back; This concentration is transferred to central control computer; Central control computer is according to this concentration; Supply to spray liquid is revised, thereby reaches the telemanagement or the automatic management of flue gas ash removal.
Through the setting of excellent grid layer 2 is set in scrubbing tower; When having realized the flue gas wet dust removal, spray liquid and excellent grid surface collision produce liquid net, liquid film or drop, reach the clean result of packed tower; Simultaneously because each excellent grid is independent existence; Rod grid layer is the quiet liquid zone as the packing layer not, and the concrete analog that flue dust forms can't gather on excellent grid, has overcome the defective of packed tower.And; Another advantage as the utility model; The excellent grid layer of the utility model can be set directly in the fume desulfurizing tower (scrubbing tower), thereby forms the excellent grid moisture film tower of collection dedusting and desulfurization one, and dust removing units is set no longer separately; Utilize the former of wet type desulfurizing to have living space purely, to the nervous rebuilding old equipment advantageous particularly in space.
The utility model adopts aforesaid way to be described in detail, but does not mean that the utility model must rely on above-mentioned the setting in detail and could implement.Based on the understanding of affiliated person skilled, the selection of the equivalence of any technological means replacement or concrete mode all drops within the open scope of the utility model.
Claims (5)
1. excellent grid water dust scrubber; It is characterized in that said excellent grid water dust scrubber mainly comprises excellent grid moisture film tower (1), excellent grid moisture film tower (1) bottom has smoke inlet (4); The top has exhanst gas outlet (5); Rod grid moisture film towers (1) inside has excellent grid layer (2), and per 3 excellent grid are the isosceles triangle arrangement in the excellent grid layer (2), is provided with water-locator (3) in excellent grid layer (2) top.
2. excellent grid water dust scrubber as claimed in claim 1 is characterized in that, excellent grid layer (2) and water-locator (3) be from bottom to top excellent grid layer, water-locator, excellent grid layer, water-locator repeat be provided with, repeat number is 2-7.
3. excellent grid water dust scrubber as claimed in claim 2 is characterized in that repeat number is 2-4.
4. according to claim 1 or claim 2 excellent grid water dust scrubber; It is characterized in that; Water-locator (3) is communicated with spray liquid circulatory system fluid, and to excellent grid layer (2) spray liquid to be provided, the spray liquid circulatory system mainly comprises circulation liquid pool (7) and circulating pump (8); Circulation liquid pool (7) is communicated with excellent grid moisture film tower (1) bottom flow, and is communicated with water-locator (3) fluid through circulating pump (8).
5. according to claim 1 or claim 2 excellent grid water dust scrubber is characterized in that be provided with dust concentration sensor (6) at smoke inlet (4) and exhanst gas outlet (5), sensor (6) links to each other with central control computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201235082U CN202224007U (en) | 2011-04-25 | 2011-04-25 | Rod grid water film dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201235082U CN202224007U (en) | 2011-04-25 | 2011-04-25 | Rod grid water film dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202224007U true CN202224007U (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201235082U Expired - Fee Related CN202224007U (en) | 2011-04-25 | 2011-04-25 | Rod grid water film dust remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202224007U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104415628A (en) * | 2013-08-19 | 2015-03-18 | 江苏博际喷雾系统有限公司 | Wet efficient dehumidification dedusting apparatus for dust-containing steam flow flue gas |
| CN107780696A (en) * | 2016-08-30 | 2018-03-09 | 辽宁埃勒蒙新能源技术有限公司 | Spliced wind-force Full-automatic dust removal chimney |
| CN109999586A (en) * | 2019-04-17 | 2019-07-12 | 山东清沂山石化科技有限公司 | A kind of silk screen membrane type purifying dust-removing device |
-
2011
- 2011-04-25 CN CN2011201235082U patent/CN202224007U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104415628A (en) * | 2013-08-19 | 2015-03-18 | 江苏博际喷雾系统有限公司 | Wet efficient dehumidification dedusting apparatus for dust-containing steam flow flue gas |
| CN107780696A (en) * | 2016-08-30 | 2018-03-09 | 辽宁埃勒蒙新能源技术有限公司 | Spliced wind-force Full-automatic dust removal chimney |
| CN109999586A (en) * | 2019-04-17 | 2019-07-12 | 山东清沂山石化科技有限公司 | A kind of silk screen membrane type purifying dust-removing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20150425 |
|
| EXPY | Termination of patent right or utility model |