CN205586821U - In spout formula flue gas demercuration device based on visible light - Google Patents
In spout formula flue gas demercuration device based on visible light Download PDFInfo
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- CN205586821U CN205586821U CN201620406728.9U CN201620406728U CN205586821U CN 205586821 U CN205586821 U CN 205586821U CN 201620406728 U CN201620406728 U CN 201620406728U CN 205586821 U CN205586821 U CN 205586821U
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Abstract
The utility model provides an in spout formula flue gas demercuration device based on visible light, the lower part of reactor sets up the intake pipe, the reactor top sets up liquid supplying port and gas vent, reactor sets up central stock solution post, be provided with a plurality of sprinkler heads on central authorities' stock solution post, reactor is provided with a plurality of quartz glass tube, a plurality of quartz glass tube use central stock solution post as the center, circumference evenly distributed, be provided with visible light source in the quartz glass tube, the bottom of reactor is provided with outlet of circulation hydraulic, outlet of circulation hydraulic passes through the inlet of the central stock solution post of circulating pipe intercommunication upper end, be provided with the circulating pump on the circulating pipe, the lower part of circulating pipe sets up the leakage fluid dram. Utilize photochemistry catalytic reaction, utilize and to release the hydroxyl free radical behind the reaction liquid visible light irradiation that contains compound catalyst OH, super oxygen anion free radical O2 with hole h+, they all have the strong oxidizing property, become hg2+ with the hg0 oxidation to with the form desorption of hg0 with hg2+, reach the purpose of flue gas demercuration.
Description
Technical field:
This utility model belongs to environmental pollution prevention and control technical field, is specifically related to a kind of middle spray formula flue gas mercury removal device based on visible ray.
Background technology:
China is coal production state maximum in the world, is again consumption of coal state maximum in the world.Containing substantial amounts of pollutant in the flue gas that coal burning produces, such as SO2, NO, Hg, As, Se and CO2Deng.At present, China is to SO2With NO Pollutant Control Technology close to ripe; in recent years; along with serious, the enhancing of environmental protection consciousness of coal-fired flue-gas pollution problem, the pollution problem such as the trace element that fire coal causes such as Hg, As is the most causing the attention of people, the particularly coal-fired mercury pollution problem caused.Hydrargyrum is as a trace elements in coal, and during coal burning, major part hydrargyrum enters air with coal-fired flue-gas, and the hydrargyrum entering ecological environment permanently builds up with in food chain in vivo, biology can be produced bigger harm.
The existence form main three kinds: Elemental Mercury Hg of Mercury In Coal Combustion Flue Gas0, bivalent mercury Hg2+With particle mercury Hgp.Bivalent mercury Hg2+Soluble in water, wet flue gas desulfurizer (WFGD) can be passed through and remove；Particle mercury HgpCan be removed by existing cleaner.Only Elemental Mercury Hg0Volatile and water insoluble, it is difficult to be removed by existing method.
At present, elemental mercury from coal-fired flue gas Hg0Removing means mainly have ADSORPTION IN A FIXED BED mercury removal device, spraying technique mercury removal device, Conventional pollution removing equipment etc..ADSORPTION IN A FIXED BED mercury removal device needs to install special adsorbent bed, there is the shortcoming that smoke flow resistance is big；The use of spraying technique mercury removal device can reduce the commercial value of flying dust；Conventional pollution removing equipment is to Hg0Removal effect the most inconspicuous.Usually, the demercuration effect of ADSORPTION IN A FIXED BED mercury removal device and spraying technique mercury removal device is the most relatively low, although using modified adsorbent can improve demercuration efficiency, but its operating cost can be significantly increased.
Utility model content:
In sum, in order to overcome the deficiency of prior art problem, this utility model provides a kind of middle spray formula flue gas mercury removal device based on visible ray, and it is to utilize photochemical catalysis to react, and discharges hydroxyl radical free radical after utilizing the reactant liquor radiation of visible light containing composite catalyst•OH, Superoxide radical anion•O2 −With hole h+, they are respectively provided with strong oxidizing property, it is possible to by the Hg in flue gas0It is oxidized to Hg2+, thus by Hg0With Hg2+Form removing, reach the purpose of flue gas demercuration.
For solving above-mentioned technical problem, the technical solution of the utility model is achieved in that
A kind of middle spray formula flue gas mercury removal device based on visible ray, wherein: include reactor, air inlet pipe, quartz glass tube, circulating pump, central authorities' storage post, circulation pipe and sprinkler head, the bottom of described reactor arranges air inlet pipe, reactor top arranges fluid infusion mouth and air vent, central authorities' storage post is set in reactor, it is provided with multiple sprinkler head in described central storage post, multiple quartz glass tube it is provided with in described reactor, multiple quartz glass tubes are centered by central authorities' storage post, even circumferential is distributed, it is provided with visible light source in described quartz glass tube, the bottom of described reactor is provided with circulation fluid outlet, circulation fluid outlet is by the inlet of circulation pipe connection central authorities storage post upper end, it is provided with circulating pump on described circulation pipe, the bottom of described circulation pipe arranges leakage fluid dram.
Further, the bottom of described reactor is provided with cloth gas tank, and cloth gas tank connects with air inlet pipe, and the top board of described cloth gas tank is air distribution plate, and air distribution plate is evenly arranged with qi-emitting hole.
Further, the cross sectional shape of described cloth gas tank is funnel type, its lower end connection air inlet pipe.
Further, described sprinkler head is arranged at central authorities' storage post higher slice, and the length direction of edge central authorities storage post is at least provided with three layers of sprinkler head, and every layer arranges at least six sprinkler head, and six sprinkler head circumferences centered by the axle center of central authorities' storage post are uniformly distributed.
Further, being provided with at least eight quartz glass tube in described reactor, eight quartz glass tubes are centered by central authorities' storage post, and even circumferential is distributed.
Further, described air inlet pipe is provided with check valve.
Further, described visible light source is fluorescent lamp, LED or electric filament lamp.
The beneficial effects of the utility model are:
1, this utility model is that mercury fume enters from reactor lower part, flow from bottom to top, in quartz glass tube in the middle part of reactor, visible light source is set, central authorities' storage post provides the reactant liquor containing catalyst, reactant liquor from sprinkler head by central authorities storage post centered by, spray to surrounding, it is seen that light discharges hydroxyl radical free radical to internal radiation, reactant liquor from surrounding after visible light source irradiates•OH, Superoxide radical anion•O2 −With hole h+, then with the Hg in the flue gas flowed from bottom to top0There is oxidation reaction, by Hg0It is oxidized to Hg2+, Hg2+Soluble in water, absorbed by reactant liquor in reactor, finally discharge, the air vent that the flue gas after demercuration is arranged from reactor top is discharged.
2, reactor lower part of the present utility model arranges cloth gas tank, the top board of cloth gas tank is air distribution plate, qi-emitting hole it is evenly arranged with on air distribution plate, coal-fired flue-gas enters cloth gas tank from air inlet pipe, then uniformly flowed up by the qi-emitting hole on air distribution plate, thus increase flue gas flowing time in reactor, make flue gas be evenly distributed in reactor, thus sufficient and reaction solution generation photochemical reaction, it is ensured that the Hg in flue gas0Thoroughly removed.
3, this utility model arranges circulating pump, and reactant liquor is fully utilized by recycled for multiple times, the catalyst in reactant liquor by circulating pump at reactor internal circulation flow, reactant liquor, therefore this utility model demercuration low cost.
4, sprinkler head of the present utility model is along the length direction layered arrangement of central authorities' storage post, during use, coal-fired flue-gas flows from bottom to top, multi-level contacts with reactant liquor, contact process is the most in order, realizing reacting coal-fired flue-gas repeatedly demercuration, flue gas can be fully contacted with reactant liquor, fully react, and makes this utility model demercuration effect more preferable.
5, this utility model simple in construction, easy to use, demercuration is effective, reactant liquor has center to spray to surrounding, it is seen that light has four circumference centers to irradiate, this method being oppositely arranged, it is more fully thorough that the light-catalyzed reaction making reactant liquor occurs, it is simple to flue gas demercuration processes.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the A-A cross-sectional schematic of this utility model Fig. 1；
Fig. 3 is the structural representation of central authorities of the present utility model storage post；
Fig. 4 is the structural representation of cloth gas tank of the present utility model；
Fig. 5 is the schematic top plan view of this utility model Fig. 4.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings.
nullAs shown in Fig. 1 ~ 5，A kind of middle spray formula flue gas mercury removal device based on visible ray，Including reactor 5、Air inlet pipe 1、Quartz glass tube 4、Circulating pump 8、Central authorities' storage post 9、Circulating pump 8、Circulation pipe 10 and sprinkler head 11，The bottom of described reactor 5 arranges air inlet pipe 1，Air inlet pipe 1 connects with cloth gas tank 3，Cloth gas tank 3 is arranged on the bottom of reactor 5，The top board of cloth gas tank 3 is air distribution plate，Qi-emitting hole 15 it is evenly arranged with on air distribution plate，The cross sectional shape of cloth gas tank 3 is funnel type，Its lower end connection air inlet pipe 1，Check valve 2 it is provided with in air inlet pipe 1，Reactor 5 top arranges fluid infusion mouth 7 and air vent 6，Central authorities' storage post 9 is set in reactor 5，Multiple sprinkler head 11 it is provided with in described central storage post 9，Eight quartz glass tubes 4 it are provided with in described reactor 5，Eight quartz glass tubes 4 are centered by central authorities' storage post 9，Even circumferential is distributed，It is provided with visible light source 12 in described quartz glass tube 4，The bottom of described reactor 5 is provided with circulation fluid outlet 13，Circulation fluid outlet 13 connects the inlet of central storage post 9 upper end by circulation pipe 10，It is provided with circulating pump 8 on described circulation pipe 10，The bottom of described circulation pipe 10 arranges leakage fluid dram 14.Described sprinkler head 11 is arranged at central authorities' storage post 9 higher slice, and the length direction along central authorities' storage post 9 arranges three layers of sprinkler head 11, and every layer arranges eight sprinkler heads 11, and eight sprinkler head 11 circumferences centered by the axle center of central authorities' storage post 9 are uniformly distributed.
During use, fluorescent lamp is placed in quartz glass tube 4, coal-fired flue-gas enters from air inlet pipe 1, in reactor 5, composite catalyst reactant liquor is added from fluid infusion mouth 7, start circulating pump 8, reactant liquor in reactor 5 is lifted into central authorities' storage post 9 from circulation pipe 10 by circulating pump 8, then spray to surrounding by center from sprinkler head 11, visible ray is irradiated by four circumference centers, after coal-fired flue-gas enters cloth gas tank 3, in qi-emitting hole 15 enters reactor 5, flow from bottom to top in reactor 5, the reactant liquor sprayed from top to bottom flows, reactant liquor contacts with coal-fired flue-gas, then under the light-catalyzed reaction of visible ray, photochemical catalysis is utilized to react, hydroxyl radical free radical is discharged after utilizing the reactant liquor radiation of visible light containing composite catalyst•OH, Superoxide radical anion•O2 −With hole h+, they are respectively provided with strong oxidizing property, it is possible to by the Hg in flue gas0It is oxidized to Hg2+, thus by Hg0With Hg2+Form removing, reach the purpose of flue gas demercuration.
This utility model arranges cloth gas tank 3, air distribution plate and qi-emitting hole 15, coal-fired flue-gas enters cloth gas tank 3 from air inlet pipe 1, then uniformly flowed up by the qi-emitting hole 15 on air distribution plate, thus increase flue gas flowing time in reactor 5, flue gas is made to be evenly distributed in reactor 5, thus the reaction solution generation photochemical reaction sufficiently and containing catalyst, it is ensured that the Hg in flue gas0Thoroughly removed.
Sprinkler head 11 of the present utility model divides three layers of layout along the length direction of central authorities' storage post 9, during use, coal-fired flue-gas flows from bottom to top, multi-level reactant liquor contact, contact process is the most in order, realizing reacting coal-fired flue-gas repeatedly demercuration, flue gas can be fully contacted with reactant liquor, fully react, and makes this utility model take off Hg0Effective.
To illustrate that, embodiment described above is illustrative not limiting to technical solutions of the utility model, the equivalent of art those of ordinary skill or other amendment made according to prior art, as long as not beyond thinking and the scope of technical solutions of the utility model, within should be included in the interest field required by this utility model.
Claims (7)
- null1. a middle spray formula flue gas mercury removal device based on visible ray，It is characterized in that: include reactor (5)、Air inlet pipe (1)、Quartz glass tube (4)、Circulating pump (8)、Central authorities' storage post (9)、Circulation pipe (10) and sprinkler head (11)，The bottom of described reactor (5) arranges air inlet pipe (1)，Reactor (5) top arranges fluid infusion mouth (7) and air vent (6)，Central authorities' storage post (9) are set in reactor (5)，It is provided with multiple sprinkler head (11) in described central storage post (9)，It is provided with multiple quartz glass tube (4) in described reactor (5)，Multiple quartz glass tubes (4) are centered by central authorities' storage post (9)，Even circumferential is distributed，It is provided with visible light source (12) in described quartz glass tube (4)，The bottom of described reactor (5) is provided with circulation fluid outlet (13)，Circulation fluid outlet (13) is by the inlet of circulation pipe (10) connection central authorities storage post (9) upper end，It is provided with circulating pump (8) on described circulation pipe (10)，The bottom of described circulation pipe (10) arranges leakage fluid dram (14).
- Middle spray formula flue gas mercury removal device based on visible ray the most according to claim 1, it is characterized in that: the bottom of described reactor (5) is provided with cloth gas tank (3), cloth gas tank (3) connects with air inlet pipe (1), the top board of described cloth gas tank (3) is air distribution plate, and air distribution plate is evenly arranged with qi-emitting hole (15).
- Middle spray formula flue gas mercury removal device based on visible ray the most according to claim 2, it is characterised in that: the cross sectional shape of described cloth gas tank (3) is funnel type, its lower end connection air inlet pipe (1).
- Middle spray formula flue gas mercury removal device based on visible ray the most according to claim 1, it is characterized in that: described sprinkler head (11) is arranged at central authorities' storage post (9) higher slice, the length direction on edge central authorities' storage post (9) is at least provided with three layers of sprinkler head (11), every layer arranges at least six sprinkler head (11), and six sprinkler head (11) circumferences centered by the axle center of central authorities' storage post (9) are uniformly distributed.
- Middle spray formula flue gas mercury removal device based on visible ray the most according to claim 1, it is characterized in that: in described reactor (5), be provided with at least eight quartz glass tube (4), eight quartz glass tubes (4) are centered by central authorities' storage post (9), and even circumferential is distributed.
- Middle spray formula flue gas mercury removal device based on visible ray the most according to claim 2, it is characterised in that: it is provided with check valve (2) in described air inlet pipe (1).
- Middle spray formula flue gas mercury removal device based on visible ray the most according to claim 1, it is characterised in that: described visible light source (12) is fluorescent lamp, LED or electric filament lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620406728.9U CN205586821U (en) | 2016-05-09 | 2016-05-09 | In spout formula flue gas demercuration device based on visible light |
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| CN201620406728.9U CN205586821U (en) | 2016-05-09 | 2016-05-09 | In spout formula flue gas demercuration device based on visible light |
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| CN205586821U true CN205586821U (en) | 2016-09-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349696A (en) * | 2017-09-14 | 2017-11-17 | 合肥千聚环保科技有限公司 | A kind of Environmental-protecting dust-removing equipment for being easy to cleaning |
| CN109499287A (en) * | 2018-11-23 | 2019-03-22 | 北京润泰环保科技有限公司 | A kind of wet scrubber tower and medical wastes incineration acid gas processing method |
-
2016
- 2016-05-09 CN CN201620406728.9U patent/CN205586821U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349696A (en) * | 2017-09-14 | 2017-11-17 | 合肥千聚环保科技有限公司 | A kind of Environmental-protecting dust-removing equipment for being easy to cleaning |
| CN109499287A (en) * | 2018-11-23 | 2019-03-22 | 北京润泰环保科技有限公司 | A kind of wet scrubber tower and medical wastes incineration acid gas processing method |
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