CN205288078U - Flue gas thick liquid distributes again sprays desulfurization dust collector - Google Patents

Flue gas thick liquid distributes again sprays desulfurization dust collector Download PDF

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Publication number
CN205288078U
CN205288078U CN201620034787.8U CN201620034787U CN205288078U CN 205288078 U CN205288078 U CN 205288078U CN 201620034787 U CN201620034787 U CN 201620034787U CN 205288078 U CN205288078 U CN 205288078U
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flue gas
absorption tower
thick liquid
serosity
spray
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CN201620034787.8U
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Chinese (zh)
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张艺
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BEIJING AVIC TIANYE TECHNOLOGY Co Ltd
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BEIJING AVIC TIANYE TECHNOLOGY Co Ltd
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Abstract

The utility model belongs to the technical field of the flue gas is handled, the purpose is the flue gas thick liquid distributes again sprays desulfurization dust collector who provides a simple structure, reduce cost, improvement desulfurization efficiency, including the absorption tower, the bottom on absorption tower sets up the thick liquid pond, and the lower part of absorption tower lateral wall sets up flue gas inlet, and a plurality of nozzles are evenly installed to wall mounting multilayer shower in the absorption tower on, and the thick liquid pond sets up flue gas thick liquid redistributor through circulating pump and shower intercommunication, the below of every layer of shower, and flue gas thick liquid redistributor is including fixing the annular distributing plate on the inner wall of absorption tower. The utility model discloses flue gas thick liquid distributes again sprays desulfurization dust collector simple structure, it is with low costs, can effectual reduction liquid -gas ratio, prolonged the contact time of flue gas with the thick liquid simultaneously, improved desulfurization efficiency, reach energy -saving power's effect, can be applicable to the pollutant reaction in the various flue gases widely, than more economy, environmental protection, the practicality of other flue gas desulphurization device.

Description

The spray desulfation dust-extraction device of flue gas serosity redistribution
Technical field
This utility model belongs to fume treatment technical field, particularly relates to the spray desulfation dust-extraction device of a kind of flue gas serosity redistribution.
Background technology
" fossil-fuel power plant atmospheric pollutant emission standard " (GB13223-2011) adds the emission limit of Yan Liao coal-burning power plant atmosphere pollution further, wherein priority control area, it is desirable to soot emissions limit value 20mg/m3. Due to reasons such as environmental carrying capacity are limited, relevant policies have been put into effect on the ground such as Jiangsu Province, Zhejiang Province, Shanxi Province, Guangzhou, it is desirable to coal-burning power plant is with reference to gas turbine group pollutant emission standard limit value, namely under benchmark oxygen content 6% condition, and flue dust, SO2��NOxConcentration of emission is respectively no higher than 5mg/m3��35mg/m3��50mg/m3��
National Development and Reform Committee, Environmental Protection Department and ministries and commissions of National Energy Board three combine issue " coal electricity energy-saving and emission-reduction upgrading and transformation action plan (2014��the year two thousand twenty) " in JIUYUE, 2014; require that the newly-built coal unit discharge in eastern region basically reaches gas turbine group pollutant emission limit; namely under benchmark oxygen content 6% condition, flue dust, SO2��NOxConcentration of emission is respectively no higher than 10mg/m3��35mg/m3��50mg/m3, middle part and west area be it is also proposed requirement.
Since 2013, domestic existing overlap coal-fired plant flue gas " minimum discharge " unit more and put into operation, provide important references for coal-burning power plant's pollutant catabolic gene. It is believed that the extensive use of " minimum discharge " technology will further improve the level that cleans of China's energy resource structure based on coal, also provide a kind of new direction for coal electricity Green Development simultaneously.
Current desulfurizing tower is substantially void tower desulfurization, and flue gas is short with the slurry liquid contacts time, and efficiency is low, weak effect. Along with the increasing of environmental protection policy dynamics, the structure of original spray void tower can not meet the environmental requirement of increasingly stringent. CN202803107 discloses a kind of desulfurizing tower, including removing fog chamber, minor air cell, eddy current gas-liquid layer, vortex generator etc., pending flue gas enters from desulfurizing tower bottom, after the energy collecting of energy collecting room, collided mutually by the absorption liquid phase of the core component vortex generator of desulfurizing tower with whereabouts with certain speed, form eddy current gas-liquid layer, make flue gas and liquid be fully contacted, fully react, thus improve desulfuration efficiency, but it adopts vortex generator, structure is complicated, and cost is high.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of simple in construction, reduces cost, improves the spray desulfation dust-extraction device of the flue gas serosity redistribution of desulfuration efficiency.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that
A kind of spray desulfation dust-extraction device of flue gas serosity redistribution, including absorption tower, the bottom on described absorption tower arranges slurry pool, the bottom of absorption tower sidewall arranges gas approach, and absorption tower inwall is installed Multi-layer sprinkling pipe, and shower is uniformly installed multiple nozzles, slurry pool connects with shower through circulating pump, every layer of shower be arranged below flue gas slurry redistributors, flue gas slurry redistributors includes the annular spread plate being fixed on the inwall of absorption tower, and the top on absorption tower arranges exhanst gas outlet.
The spray desulfation dust-extraction device of this utility model flue gas serosity redistribution, further, described annular spread plate is set to taper, and cone angle a is 120��135 ��.
The spray desulfation dust-extraction device of this utility model flue gas serosity redistribution, further, the free end of described annular spread plate is set to zigzag.
The spray desulfation dust-extraction device of this utility model flue gas serosity redistribution, further, described absorption tower inwall fixes one piece of gripper shoe in the lower section of every block of annular spread plate every 10��15 �� of levels, and the bottom of the other end of gripper shoe and annular spread plate is fixed.
The spray desulfation dust-extraction device of this utility model flue gas serosity redistribution, further, described annular spread plate and gripper shoe are respectively adopted anti-corrosive alloy material and make.
The spray desulfation dust-extraction device of this utility model flue gas serosity redistribution, further, described shower arranges 3-5 layer.
The spray desulfation dust-extraction device of this utility model flue gas serosity redistribution is compared with prior art, have the advantages that and be arranged below flue gas slurry redistributors at every layer of shower, under the effect of flue gas slurry redistributors, flue gas experienced by the process several times such as expansion, contraction, expansion, contraction from the bottom to top, further increase being uniformly distributed of flue gas and serosity in effective area, liquid-gas ratio can be effectively reduced, extend the time of contact of flue gas and serosity simultaneously, improve desulfuration efficiency, reach the effect of energy saving. Flue gas slurry redistributors adopts annular spread plate form, simple in construction, cost is low, large area is not had to hinder flue gas circulation, decrease the serosity attrition and attack to absorption tower inwall simultaneously, extend the service life of desulfurizing tower, the pollutant reaction in various flue gas can be widely applicable for, environmental protection more economical compared with other flue gas desulfurization device, practicality.
Spray desulfation dust-extraction device flue gas serosity of the present utility model redistributed below in conjunction with accompanying drawing is described further.
Accompanying drawing explanation
Fig. 1 is the front view of the spray desulfation dust-extraction device of this utility model flue gas serosity redistribution.
Detailed description of the invention
As shown in Figure 1, the spray desulfation dust-extraction device of this utility model flue gas serosity redistribution includes absorption tower 4, the bottom on absorption tower 4 arranges slurry pool 1, the bottom of absorption tower 4 sidewall arranges gas approach 2, absorption tower 4 inwall is installed Multi-layer sprinkling pipe 6,3��5 layers can be arranged as required, be 4 layers shown in figure, uniformly installing multiple nozzles 61 on shower 6, slurry pool 1 connects with shower 6 through circulating pump 7. Every layer of shower 6 be arranged below flue gas slurry redistributors 3, flue gas slurry redistributors 3 includes the annular spread plate 31 being fixed on the inwall of absorption tower 4, annular spread plate 31 is set to taper, cone angle a is 120��135 ��, the free end of annular spread plate 31 is set to zigzag, it is ensured that the serosity again collected uniform distribution can be gone out and form liquid film. Fixing one piece of gripper shoe 32 in the lower section of every block of annular spread plate 31 every 10��15 �� of levels on the inwall of absorption tower 4, the bottom of the other end of gripper shoe 32 and annular spread plate 31 is fixed.Annular spread plate 31 and gripper shoe 32 are respectively adopted anti-corrosive alloy material and make, for instance stainless steel material, anticorrosive anti-wear, it is not necessary to Maintenance and Repair. The top on absorption tower 4 arranges exhanst gas outlet 5.
The processing procedure of the spray desulfation dust-extraction device of this utility model flue gas serosity redistribution is:
The flue gas that boiler produces, after cleaner unit dedusting, absorption tower 4 is entered by gas approach 2, flue gas flows from the bottom to top, the alkaline slurry that circulating pump 7 extracts from slurry pool 1 simultaneously forms atomization slurry by nozzle 61 injection, carrying out haptoreaction with flue gas, atomization slurry reacts with the sulfur dioxide in flue gas, reaches to remove the effect of sulfur dioxide. simultaneously because the serosity major part of nozzle 61 injection scatters on the inwall of absorption tower 4, the serosity collected by absorption tower 4 inwall dispenses after being collected by flue gas slurry redistributors 3 again, form secondary serosa, thus reaching the purpose that serosity contacts with smoke secondary, simultaneously because be provided with flue gas slurry redistributors 3, when making flue gas run into flue gas slurry redistributors 3, carry out flowing to variation, add the contact area of flue gas and serosity, extend the time of contact of flue gas and serosity simultaneously, improve desulfuration efficiency, the flue gas reacted is discharged by exhanst gas outlet 5, reach better to remove the effect of sulfur dioxide.
Embodiment described above is only that preferred implementation of the present utility model is described; not scope of the present utility model is defined; under the premise designing spirit without departing from this utility model; various deformation that the technical solution of the utility model is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that this utility model claims are determined.

Claims (6)

1. the spray desulfation dust-extraction device of a flue gas serosity redistribution, including absorption tower, it is characterized in that: the bottom on described absorption tower arranges slurry pool, the bottom of absorption tower sidewall arranges gas approach, absorption tower inwall is installed Multi-layer sprinkling pipe, shower is uniformly installed multiple nozzles, slurry pool connects with shower through circulating pump, every layer of shower be arranged below flue gas slurry redistributors, flue gas slurry redistributors includes the annular spread plate being fixed on the inwall of absorption tower, and the top on absorption tower arranges exhanst gas outlet.
2. the spray desulfation dust-extraction device of flue gas serosity according to claim 1 redistribution, it is characterised in that: described annular spread plate is set to taper, and cone angle a is 120��135 ��.
3. the spray desulfation dust-extraction device of flue gas serosity according to claim 2 redistribution, it is characterised in that: the free end of described annular spread plate is set to zigzag.
4. the spray desulfation dust-extraction device of flue gas serosity according to claim 3 redistribution, it is characterized in that: fix one piece of gripper shoe in the lower section of every block of annular spread plate every 10��15 �� of levels on the inwall of described absorption tower, the bottom of the other end of gripper shoe and annular spread plate is fixed.
5. the spray desulfation dust-extraction device of flue gas serosity according to claim 4 redistribution, it is characterised in that: described annular spread plate and gripper shoe are respectively adopted anti-corrosive alloy material and make.
6. the spray desulfation dust-extraction device of the flue gas serosity redistribution according to any one of claim 1-5, it is characterised in that: described shower arranges 3-5 layer.
CN201620034787.8U 2016-01-14 2016-01-14 Flue gas thick liquid distributes again sprays desulfurization dust collector Active CN205288078U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106731518A (en) * 2016-12-23 2017-05-31 青上化工(惠州)有限公司 A kind of hydrochloric acid absorption tower
CN110585849A (en) * 2019-09-24 2019-12-20 山东齐鲁化纺有限公司 Waste gas collecting and treating process for efficient polyester staple fiber relaxation heat setting machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106731518A (en) * 2016-12-23 2017-05-31 青上化工(惠州)有限公司 A kind of hydrochloric acid absorption tower
CN110585849A (en) * 2019-09-24 2019-12-20 山东齐鲁化纺有限公司 Waste gas collecting and treating process for efficient polyester staple fiber relaxation heat setting machine

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