CN104437041B - A kind of Multifunctional tobacco gas disposal equipment - Google Patents
A kind of Multifunctional tobacco gas disposal equipment Download PDFInfo
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- CN104437041B CN104437041B CN201410814296.0A CN201410814296A CN104437041B CN 104437041 B CN104437041 B CN 104437041B CN 201410814296 A CN201410814296 A CN 201410814296A CN 104437041 B CN104437041 B CN 104437041B
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Abstract
The present invention relates to a kind of Multifunctional tobacco gas disposal equipment, including the cyclone dust extractor being sequentially connected by external pipe, water-bath jet box and demister, water-bath jet box is also associated with water bath reactant liquor regenerating unit, also include flue gas heat exchanger, flue gas heat exchanger includes thermal conductive metal pipe, air duct, deceleration joint and chimney, air duct includes the vertical duct of horizontal pipeline and one end connection chimney being connected between cyclone dust extractor and water-bath jet box, vertical duct runs through horizontal pipeline, horizontal pipeline is closed, many thermal conductive metal pipes run through vertical duct and are positioned at the part of horizontal pipeline, connection horizontal pipeline, deceleration joint is arranged on the infall of horizontal pipeline and vertical duct, demister includes " crowd " font demister and impact type demister successively, impact type demister is connected with the other end of vertical duct.The present invention can reduce equipment investment and maintenance cost while improving gas cleaning efficiency, reduces material and energy resource consumption.
Description
Technical field
The present invention relates to the furnace flue gas process equipment of industrial coal, combustion charcoal, combustion bamboo wood flour boiler, particularly relate to a kind of Multifunctional tobacco gas disposal equipment.
Background technology
The coal smoke type air pollution administering fire coal combustion charcoal Industrial Boiler generation is a system engineering covering the whole nation, wherein boiler flue gas purification processes is an important link, current each enterprise generally adopts Dual alkali to carry out fume treatment, but the deficiency of existing all kinds of Dual alkali fume treatment technology has: equipment volume is huge, operation inconvenience is installed；The function of denitrating flue gas is indefinite；Solid residue in reaction liquid bath is piled up too fast；Steam adds heat smoke and consumes excessive power；Gas water-bath process inefficient；Demister is inefficient.
Summary of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to provide a kind of Multifunctional tobacco gas disposal equipment, this equipment can reduce equipment investment and maintenance cost while improving gas cleaning efficiency, reduces material and energy resource consumption.
In order to realize above-mentioned purpose, present invention employs following technical scheme:
A kind of Multifunctional tobacco gas disposal equipment, including the cyclone dust extractor being sequentially connected by external pipe, water-bath jet box and demister, described water-bath jet box is also associated with water bath reactant liquor regenerating unit, also include flue gas heat exchanger, described flue gas heat exchanger includes thermal conductive metal pipe, air duct, deceleration joint and chimney, described air duct includes the vertical duct of horizontal pipeline and one end connection chimney being connected between cyclone dust extractor and water-bath jet box, described vertical duct runs through horizontal pipeline, horizontal pipeline is closed, many thermal conductive metal pipes run through vertical duct and are positioned at the part of horizontal pipeline, connection horizontal pipeline, described deceleration joint is arranged on the infall of horizontal pipeline and vertical duct, described demister includes " crowd " font demister and impact type demister successively, described impact type demister is connected with the other end of vertical duct.
Preferably: described water-bath jet box includes the three layers suppressing plate and the first pipeline that are arranged on water-bath box house, described first pipeline is positioned at water-bath casing central authorities, and the first pipeline runs through three layers suppressing plate, and described suppressing plate is uniformly distributed multiple through hole.
Preferably: described " crowd " font demister includes inverted " V " type and except mist steel bar, reaction casing and removes mist bar fixed frame, the described middle part being fixed on reaction casing except mist bar fixed frame, multiple rows of inverted " V " type is uniformly arranged on except, in mist bar fixed frame, the gas outlet end of described reaction casing becomes horn-like closing in except mist steel bar.
Preferably: described impact type demister includes elastic except mist fiber, fixation with steel wire net, demister casing, liquid header and air-introduced machine, described air-introduced machine is connected with demister casing by second pipe, described fixation with steel wire net is fixed on the inwall of demister casing, described elasticity is online except mist fiber is fixed on fixation with steel wire, described liquid header is connected to the lower end in the exit of demister casing, and the upper end in the exit of described demister casing is connected with vertical duct.
Preferably: described water bath reactant liquor regenerating unit includes the industrial tank of pipeline connection, lime reaction device, regeneration reactor successively and is also connected with circulating slot with circulating slot, described industry tank, described circulating slot is also associated with soda bucket, and circulating slot is connected to water-bath jet box, described lime reaction device is connected to quick lime bucket, described regeneration reactor is also connected with water-bath jet box, is also equipped with regenerative response heat-exchange device between described lime reaction device, regeneration reactor.
Preferably: described regenerative response heat-exchange device includes heat conduction coiled pipe, conductive fluid conduit and circulating pump, two groups of heat conduction coiled pipes are separately mounted to outside four walls of regeneration reactor and lime reaction device, and the two ends of two groups of heat conduction coiled pipes are connected each through conductive fluid conduit, described circulating pump is connected in conductive fluid conduit, is also coated with heat-conducting daub between described heat conduction coiled pipe and regeneration reactor, lime reaction device.
Preferably: described regeneration reactor is also associated with rotary filtration device, described cyclone dust extractor is connected to dust collecting box, and the inlet port of described water-bath jet box is also associated with air cock.
It is an object of the invention to by following measure reach industrial smoke dust-removal and desulfurizing denitration process: high-temperature flue gas access cyclone dust extractor carry out rough dusting, then pass through flue gas heat exchanger and cool down further.Flue gas mixing air makes oxidation of nitric oxide be nitrogen dioxide afterwards.Adopting porous suppressing plate and piezo-jet systems that gas carries out degree of depth dedusting and desulphurization denitration in water-bath jet box, this technique adopts soda lye to be reactant liquor, and calcium alkali liquor is as regenerated liquid.Gas eventually passes the two grades of demister systems being made up of " crowd " font demister and impact type demister, discharge after heating finally by flue gas heat exchanger.The regeneration of reactant liquor needs the temperature of about 50 DEG C, and for saving the energy, special invention is also provided with regenerative response heat-exchange device, and the heat that lime reaction produces can quantitatively be transferred in regeneration reactor by this device, to reach temperature controlled purpose.
The technological process of fume treatment is: flue gas accesses → with air hybrid cooling and dust removal with machine → bis-grade water-bath and injection → bis-grade except mist → → gas discharging up to standard of heating.The dust removal efficiency more than 95% of the present invention, desulfuration efficiency more than 95%, denitration efficiency about 60%, delivery temperature about 80 DEG C.
The present invention compares existing industrial flue gas cleaning technology following advantage:
1, novel in design independent, equipment can integrated combination or dilatation, motility is big, takes up an area little, easy to operate, and investment and operating cost are relatively low.2, preliminary dry-type mechanical dedusting can share dedusting task for water-bath spraying system, can alleviate the workload of residue dehydration relative to wet dedusting technique.3, flue gas heat exchanger may utilize purification before high-temperature flue gas purified gas is heated, the temperature making discharge flue gas when not using additional energy source is up to standard.4, utilize the oxygen in air NO is aoxidized, it is to avoid the use of catalyst, reduce cost.5, double alkali method desulfurizing denitration efficiency is high, low relative to its operating cost of sodium alkali, compares limestone-gypsum method and not easily makes equipment scaling.6, novel porous suppressing plate water bath device and pressure injection can make reaction more abundant, and the absorbance of harmful gas is higher.7, novel " crowd " font demister and novel impact type demister can improve demisting efficiency so that expellant gas dries and reduces reactant liquor and runs off.8, regenerative response heat exchange system uses existing thermal source to carry out the heating of regenerative response groove, has saved energy.9, integrated artistic flow process is safe and reliable, it is not necessary to the dangerous materials such as liquefied ammonia.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the flue gas heat exchanger of the present invention.
Fig. 3 is the structural representation of the water-bath jet box of the present invention.
Fig. 4 is the structural representation of " crowd " font demister of the present invention.
Fig. 5 is the structural representation of the impact type demister of the present invention.
Fig. 6 is the structural representation of the regenerative response heat-exchange device of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is made a detailed explanation.
A kind of Multifunctional tobacco gas disposal equipment as depicted in figs. 1 and 2, including the cyclone dust extractor 101 being sequentially connected by external pipe, water-bath jet box 2 and demister, described water-bath jet box 2 is also associated with water bath reactant liquor regenerating unit, also include flue gas heat exchanger 1, described flue gas heat exchanger 1 includes thermal conductive metal pipe 11, air duct 12, deceleration joint 13 and chimney 14, described air duct 12 includes the vertical duct of horizontal pipeline and one end connection chimney 14 being connected between cyclone dust extractor 101 and water-bath jet box 2, described vertical duct runs through horizontal pipeline, horizontal pipeline is closed, many thermal conductive metal pipes 11 run through vertical duct and are positioned at the part of horizontal pipeline, connection horizontal pipeline, described deceleration joint 13 is arranged on the infall of horizontal pipeline and vertical duct, many thermal conductive metal pipes 11 are corrosion resistant metal tube, and parallel interval is arranged, the tubular body of described thermal conductive metal pipe 11 leads to high-temperature flue gas, purified gas is passed through outside the body of thermal conductive metal pipe 11；Described demister includes " crowd " font demister 3 and impact type demister 4 successively, and described impact type demister 4 is connected with the other end of vertical duct.
As shown in Figure 3, described water-bath jet box 2 includes being arranged on the three layers suppressing plate 21 within water-bath casing 23 and the first pipeline 22, described first pipeline 22 is positioned at water-bath casing 23 central authorities, and first pipeline 22 run through three layers suppressing plate 21, described suppressing plate 21 is uniformly distributed the through hole 24 of multiple corners star.The outside of described water-bath jet box 2 is additionally provided with chiller 25, and described chiller 25 is sent back in water-bath jet box 2 by high-pressure injection after being cooled down by the liquid in water-bath jet box 2 after pipeline again.
As shown in Figure 4, described " crowd " font demister 3 includes inverted " V " type and except mist steel bar 31, reaction casing 33 and removes mist bar fixed frame 32, the described middle part being fixed on reaction casing 33 except mist bar fixed frame 32, multiple rows of inverted " V " type is uniformly arranged on except, in mist bar fixed frame 32, the gas outlet end of described reaction casing 33 becomes horn-like closing in except mist steel bar 31.
As shown in Figure 5, described impact type demister 4 includes elastic except mist fiber 41, fixation with steel wire net 42, demister casing 43, liquid header 44 and air-introduced machine 46, described air-introduced machine 46 is connected with demister casing 43 by second pipe 45, described fixation with steel wire net 42 is fixed on the inwall of demister casing 43, described elasticity is fixed on fixation with steel wire net 42 except mist fiber 41, described liquid header 44 is connected to the lower end in the exit of demister casing 43, and the upper end in the exit of described demister casing 43 is connected with vertical duct.
Described water bath reactant liquor regenerating unit includes the industrial tank 9 of pipeline connection, lime reaction device 7, regeneration reactor 6 successively and is also connected with circulating slot 8 with circulating slot 8, described industry tank 9, described circulating slot 8 is also associated with soda bucket 81, and circulating slot 8 is connected to water-bath jet box 2, described lime reaction device 7 is connected to quick lime bucket 71, described regeneration reactor 6 is also connected with water-bath jet box 2, is also equipped with regenerative response heat-exchange device 5 between described lime reaction device 7, regeneration reactor 6.
As shown in Figure 6, described regenerative response heat-exchange device 5 includes heat conduction coiled pipe 51, conductive fluid conduit 53 and circulating pump 52, two groups of heat conduction coiled pipes 51 are separately mounted to outside four walls of regeneration reactor 6 and lime reaction device 7, and the two ends of two groups of heat conduction coiled pipes 51 are connected each through conductive fluid conduit 53, described circulating pump 52 is connected in conductive fluid conduit 53, described heat conduction coiled pipe 51 and regeneration reactor 6, it is also coated with heat-conducting daub between lime reaction device 7, regenerative response heat-exchange device 5, circulating pump 52 is utilized to drive conductive fluid, so as to circulate between regeneration reactor and lime reaction device.
Described regeneration reactor 6 is also associated with rotary filtration device 61, and described cyclone dust extractor 101 is connected to dust collecting box 102, and the inlet port of described water-bath jet box 2 is also associated with air cock 201.
The work process of present device is as follows: high-temperature gas is entering cyclone dust extractor high speed rotating, and dust contacts chamber wall under the action of the centrifugal and drops to dust collecting box.Flue gas is imported into flue gas heat exchanger subsequently, herein with purify after dry and cold gas carry out heat exchange.In pipeline later, the important component nitric oxide in nitrogen oxides reacts with the oxygen in air, generates nitrogen dioxide.All need to use resistant material because nitrogen dioxide and sulfur dioxide all have corrosivity, container and pipeline.Desulphurization denitration technology adopts Dual alkali technique, and flue gas enters water-bath jet box after cooling, is fully contacted through water-bath and injection with soda reactant liquor and reacts.
Wherein the chemical reaction of desulfurization is as follows:
SO2+2NaOH+H2O→Na2SO3+2H2O
Na2SO3+SO2+H2O→2NaHSO3
NaHSO3+NaOH→Na2SO3+H2O
Side reaction is as follows
2Na2SO3+O2→2NaSO4
2NaHSO3+O2→2NaHSO4
The chemical reaction of denitration is as follows
2NO+O2→2NO2
NO+NO2+2NaOH→2NaNO2+H2O
Side reaction is as follows
4Na2SO3+2NO2→4Na2SO4+N2↑。
Owing to producing a large amount of water smoke in water-bath and pressure injection process, therefore the mist work that removes before discharge becomes even more important.For making gas fully dry, the present invention arranges two grades of demister systems, namely first passes through novel " crowd " font demister, carries out further except mist then through novel impact type demister.After each purified treatment step, dry gas enters flue gas heat exchanger, heated by oven-fresh high-temperature flue gas, and the composition of gas and temperature all reach discharge standard afterwards, from smoke stack emission.Effective ingredient in soda reactant liquor needs to be pumped to regeneration reactor after certain consumption, and by aqua calcis regeneration sodium hydroxide, supernatant imports circulating slot in order to using, and after precipitate and separate, dehydration becomes residue.In Dual alkali technique, used sodium hydroxide price is higher, and the calcium hydroxide price prepared by quick lime is relatively low, and this regeneration technology can be greatly reduced operating cost.The optimum temperature of regenerative response is 50 DEG C, and the present invention uses novel regenerative response heat-exchange device to transfer in regenerative response groove by the heat of lime reaction, controls the temperature of regenerative response with this, avoids simultaneously and consumes extra energy.
The chemical reaction of reactant liquor regeneration is as follows:
CaO+H2O→Ca(OH)2
Ca(OH)2+Na2SO3+1/2H2O→2NaOH+CaSO3·1/2H2O
Ca(OH)2+2NaHSO3→Na2SO3+CaSO3·1/2H2O+3/2H2O。
Claims (5)
1. a Multifunctional tobacco gas disposal equipment, including the cyclone dust extractor (101) being sequentially connected by external pipe, water-bath jet box (2) and demister, described water-bath jet box (2) includes being arranged on the internal three layers suppressing plate (21) of water-bath casing (23) and the first pipeline (22), described first pipeline (22) is positioned at water-bath casing (23) central authorities, and first pipeline (22) run through three layers suppressing plate (21), described suppressing plate (21) is uniformly distributed multiple through hole (24), described water-bath jet box (2) is also associated with water-bath jet box reactant liquor regenerating unit, it is characterized in that: also include flue gas heat exchanger (1), described flue gas heat exchanger (1) includes thermal conductive metal pipe (11), air duct (12), deceleration joint (13) and chimney (14), described air duct (12) includes the vertical duct of horizontal pipeline and one end connection chimney (14) being connected between cyclone dust extractor (101) and water-bath jet box (2), described vertical duct runs through horizontal pipeline, horizontal pipeline is closed, many thermal conductive metal pipes (11) are run through vertical duct and are positioned at the part of horizontal pipeline, connection horizontal pipeline, described deceleration joint (13) is arranged on the infall of horizontal pipeline and vertical duct, described demister includes " crowd " font demister (3) and impact type demister (4) successively, described impact type demister (4) is connected with the other end of vertical duct, described water-bath jet box reactant liquor regenerating unit includes the industrial tank (9) that pipeline connects successively, lime reaction device (7), regeneration reactor (6) and circulating slot (8), described industry tank (9) is also connected with circulating slot (8), described circulating slot (8) is also associated with soda bucket (81), and circulating slot (8) is connected to water-bath jet box (2), described lime reaction device (7) is connected to quick lime bucket (71), described regeneration reactor (6) is also connected with water-bath jet box (2), described lime reaction device (7), regenerative response heat-exchange device (5) it is also equipped with between regeneration reactor (6).
2. a kind of Multifunctional tobacco gas disposal equipment according to claim 1, it is characterized in that: described " crowd " font demister (3) include inverted " V " type and except mist steel bar (31), reaction casing (33) and remove mist bar fixed frame (32), the described middle part being fixed on reaction casing (33) except mist bar fixed frame (32), multiple rows of inverted " V " type is uniformly arranged on except, in mist bar fixed frame (32), the gas outlet end of described reaction casing (33) becomes horn-like closing in except mist steel bar (31).
3. a kind of Multifunctional tobacco gas disposal equipment according to claim 1, it is characterized in that: described impact type demister (4) includes elastic except mist fiber (41), fixation with steel wire net (42), demister casing (43), liquid header (44) and air-introduced machine (46), described air-introduced machine (46) is connected with demister casing (43) by second pipe (45), described fixation with steel wire net (42) is fixed on the inwall of demister casing (43), described elasticity is fixed on fixation with steel wire net (42) except mist fiber (41), described liquid header (44) is connected to the lower end in the exit of demister casing (43), the upper end in the exit of described demister casing (43) is connected with vertical duct.
4. a kind of Multifunctional tobacco gas disposal equipment according to claim 1, it is characterized in that: described regenerative response heat-exchange device (5) includes heat conduction coiled pipe (51), conductive fluid conduit (53) and circulating pump (52), two groups of heat conduction coiled pipes (51) are separately mounted to outside four walls of regeneration reactor (6) and lime reaction device (7), and the two ends of two groups of heat conduction coiled pipes (51) are connected each through conductive fluid conduit (53), described circulating pump (52) is connected in conductive fluid conduit (53), described heat conduction coiled pipe (51) and regeneration reactor (6), lime reaction device is also coated with heat-conducting daub between (7).
5. a kind of Multifunctional tobacco gas disposal equipment according to claim 1, it is characterized in that: described regeneration reactor (6) is also associated with rotary filtration device (61), described cyclone dust extractor (101) is connected to dust collecting box (102), and the inlet port of described water-bath jet box (2) is also associated with air cock (201).
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| CN201410814296.0A CN104437041B (en) | 2014-12-24 | 2014-12-24 | A kind of Multifunctional tobacco gas disposal equipment |
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| CN201410814296.0A CN104437041B (en) | 2014-12-24 | 2014-12-24 | A kind of Multifunctional tobacco gas disposal equipment |
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| CN104437041A CN104437041A (en) | 2015-03-25 |
| CN104437041B true CN104437041B (en) | 2016-06-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104959006B (en) * | 2015-06-17 | 2017-04-12 | 广西柳州中嘉知识产权服务有限公司 | Treatment tower for flue gas from boilers |
| CN106000013A (en) * | 2016-08-02 | 2016-10-12 | 北京中航泰达环保科技股份有限公司 | Wet desulfurization flue gas ultra-clean emission treatment system |
| CN113209769A (en) * | 2021-05-31 | 2021-08-06 | 攀钢集团研究院有限公司 | Deep dedusting and demisting process for desulfurized flue gas in low-temperature flue gas ultralow emission treatment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0724763B2 (en) * | 1990-03-06 | 1995-03-22 | 北海道電力株式会社 | Method for manufacturing exhaust gas treating agent |
| CN201120251Y (en) * | 2007-11-02 | 2008-09-24 | 北京中航泰达科技有限公司 | Desulfurising-dusting apparatus of spiral vortex impact stream |
| CN201239601Y (en) * | 2008-08-07 | 2009-05-20 | 江苏揽山环境科技有限公司 | Wet desulfurization device for absorbing flue gas by impact-flow |
| CN101879406B (en) * | 2010-07-15 | 2011-05-25 | 煤炭工业济南设计研究院有限公司 | Dual-alkali flue gas desulfurization device and desulfurization method |
| CN102847400B (en) * | 2011-06-30 | 2015-01-28 | 上海三卿环保科技有限公司 | Flue gas dedusting and desulfurization system for medium-small size coal fired boiler |
| CN202740999U (en) * | 2012-06-12 | 2013-02-20 | 青岛绿洲思源环保科技有限公司 | Novel flue gas desulfurization device |
| CN103212284A (en) * | 2013-03-15 | 2013-07-24 | 孙琦 | Method and device for combined removal of nitric oxide and sulfide in flue gas |
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