CN107569983A - Smoke-gas wet desulfurization equipment - Google Patents

Smoke-gas wet desulfurization equipment Download PDF

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Publication number
CN107569983A
CN107569983A CN201710670363.XA CN201710670363A CN107569983A CN 107569983 A CN107569983 A CN 107569983A CN 201710670363 A CN201710670363 A CN 201710670363A CN 107569983 A CN107569983 A CN 107569983A
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CN
China
Prior art keywords
retort
cylinder body
smoke
gas
flue gas
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CN201710670363.XA
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Chinese (zh)
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CN107569983B (en
Inventor
李传松
王玉婷
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武汉和尔环保科技有限公司
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Publication of CN107569983A publication Critical patent/CN107569983A/en
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Abstract

The present invention proposes a kind of smoke-gas wet desulfurization equipment, by setting retort, reacting cylinder body, coagulation is carried out in retort respectively, two stage treatment is carried out in reacting cylinder body, the reaction time is extended compared with single column under identical height, mixed aerosol is uniformly between flue gas and alkali lye, reaction is abundant, occupies little space;Gas approach in retort arranges that flue gas is downward in the rotation of retort interior edge inwall, and centrifugal force can remove quite a few dust caused by flue gas eddy flow with retort cross section with the direction of less parallel tangent line;Nozzle is arranged with the direction of less parallel tangent line with retort cross section and set by flow of flue gas direction, is maintained the smoothness of flue gas in retort, is strengthened mixed aerosol effect between flue gas and alkali lye, makes reaction more abundant;Spiral board and nozzle are set in reacting cylinder body, make that the flue gas into reacting cylinder body is more uniform, and mass transfer effect is more preferable, further enhances reaction effect.

Description

Smoke-gas wet desulfurization equipment

Technical field

The present invention relates to flue gas desulfurization device, more particularly to a kind of smoke-gas wet desulfurization equipment.

Background technology

At present, as country also improves therewith to the requirement more and more higher of environmental protection, requirement of the country for blowdown enterprise, SO2 discharge inevitably turns into one of key point of supervision.SO2 processing mode be broadly divided into dry method, semidry method, wet method this three Kind, wherein dry method, semidry method are inefficient, and have certain limitation, therefore wet desulphurization turns into the main of desulfurization now Developing direction, the form of wet desulphurization absorption tower directly affect desulfurized effect.

Currently used for remove SO2 absorption tower mainly have spray column, liquid column tower, bubble tower, sieve-plate tower, rotating stream tray scrubber and Respectively there is its advantage and disadvantage on Venturi scrubber etc., these absorption towers according to the parameter and the difference of the desulfurization method of selection of flue gas.Its The characteristics of common is to ensure the sufficient reaction time, reaches more preferable desulfurized effect, and tower body is typically designed higher, is taken Space it is larger, and too big effect is had no for dedusting.

The content of the invention

In view of this, the present invention propose between a kind of flue gas and alkali lye mixed aerosol uniformly, reaction fully, space-consuming Small smoke-gas wet desulfurization equipment.

The technical proposal of the invention is realized in this way:The invention provides a kind of smoke-gas wet desulfurization equipment, it includes Retort, reacting cylinder body, gas approach, sewage draining exit and several nozzles, gas approach, blowdown are offered respectively in retort Mouthful, reacting cylinder body upper and lower part opening, reacting cylinder body is through reaction top ends of cans and seals therewith, divides in reacting cylinder body and retort Nozzle is not provided with it.

On the basis of above technical scheme, it is preferred that also it is arranged at including spiral board, nesting in reacting cylinder body, and position Below reacting cylinder body inner nozzle.It is further preferred that also include flue and demister, flue and reacting cylinder body upper opening phase Intercommunicated, demister nesting is arranged in flue.Still more preferably, the flue includes expanding pipeline section, big footpath straight length With undergauge pipeline section, expanding pipeline section both ends are respectively communicated with reacting cylinder body upper opening and big footpath straight length, undergauge pipeline section one end with it is big Footpath straight length connection, expanding pipeline section and undergauge pipeline section are become larger closer to big footpath straight length diameter, and demister nesting is arranged at In the straight length of big footpath.Still more preferably, the big footpath straight length part is provided with electric dust collector.

On the basis of above technical scheme, it is preferred that the retort cross section of inboard wall is circular, gas approach air inlet Direction is 0~20 ° horizontal by 10~30 ° of angles, with retort cross section of inboard wall junction tangent line angle.It is further excellent Choosing, the gas approach is arranged above retort inner nozzle, and retort inner nozzle hydrojet direction and reaction top tank structure are transversal Face junction tangent line angle is 0~20 °.It is further preferred that the nozzle is arranged on flow of flue gas direction.

On the basis of above technical scheme, it is preferred that the sewage outfalls setting is on reaction pot sidewall, and the bottom of close to Portion, using DN300 blow-off pipes.

The smoke-gas wet desulfurization equipment of the present invention has the advantages that relative to prior art:

(1) by setting retort, reacting cylinder body, coagulation is carried out in retort respectively, is entered in reacting cylinder body Row two stage treatment, the reaction time is extended compared with single column under identical height, between flue gas and alkali lye mixed aerosol uniformly, Reaction is abundant, occupies little space;

(2) gas approach in retort arranges that flue gas is anti-with retort cross section with the direction of less parallel tangent line Answer the rotation of tank interior edge inwall downwards, centrifugal force can remove quite a few dust caused by flue gas eddy flow;Nozzle and retort Cross section is arranged with the direction of less parallel tangent line and set by flow of flue gas direction, maintains the smoothness of flue gas in retort, Mixed aerosol effect between flue gas and alkali lye is strengthened, makes reaction more abundant;

(3) spiral board and nozzle are set in reacting cylinder body, make the flue gas into reacting cylinder body more uniform, mass transfer effect More preferably, reaction effect is further enhanced.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.

Fig. 1 is the positive cross section structure diagram of smoke-gas wet desulfurization equipment of the present invention;

Fig. 2 is the sectional view in Figure 1A-A directions.

Embodiment

Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is carried out clear Chu, it is fully described by, it is clear that described embodiment only a part of embodiment of the present invention, rather than whole realities Apply mode.Based on the embodiment in the present invention, those of ordinary skill in the art institute under the premise of creative work is not made The every other embodiment obtained, belongs to the scope of protection of the invention.

As shown in figure 1, with reference to Fig. 2, smoke-gas wet desulfurization equipment of the invention, it includes retort 1, reacting cylinder body 2, cigarette Gas import 3, sewage draining exit 4 and several nozzles 6.

Gas approach 3, sewage draining exit 4 are offered in retort 1 respectively, nozzle 6 is provided with retort 1.In this way, contain SO2 Acidic flue gas enter from gas approach 3, the alkaline reaction sprayed with the nozzle 6 in retort 1, remove SO2 and part flue dust, The reaction liquid and flue dust mixing mud deposited is discharged through sewage draining exit 4.Specifically, sewage draining exit 4 is arranged at the side of retort 1 On wall, and close to bottom, using DN300 blow-off pipes, it is easy to be emptied completely liquid and manually drags for slag.Preferably, the retort 1 cross section of inboard wall is circle, and the airintake direction of gas approach 3 is horizontal by 10~30 ° of angles and the cross section of inboard wall of retort 1 Junction tangent line angle is 0~20 °.By the airintake direction of gas approach 3 and horizontal plane design be in 10~30 ° of angles, be in order that The acidic flue gas that SO2 must be contained moves downward;The airintake direction of gas approach 3 and the cross section of inboard wall junction tangent line of retort 1 are pressed from both sides Angle is designed as 0~20 ° so that flue gas enters from the upper tangential of retort 1, is moved in a circle downwards along the inwall of retort 1, extends The mixed aerosol time between flue gas and alkali lye;In addition, the centrifugal motion of flue gas can also remove part dust.On this basis, institute State gas approach 3 and be arranged at the top of 1 inner nozzle of retort 6, the hydrojet direction of 1 inner nozzle of retort 6 and the cross section of inboard wall of retort 1 Junction tangent line angle is 0~20 °.Specifically, the nozzle 6 is arranged on flow of flue gas direction.In this way, flue gas reacts on edge The inwall of tank 1 moves in a circle downwards, the alkali lye and flue gas that the nozzle 6 that the inwall approximation of simultaneous reactions tank 1 is tangentially evenly arranged sprays Uniformly mixing, reacts.The mode of the approximate tangential arrangement of nozzle 6 and flow of flue gas is consistent, it ensure that flue gas Flow direction not multilated, reduce SR.

The upper and lower part opening of reacting cylinder body 2, reacting cylinder body 2 is through the top cover of retort 1 and seals therewith, divides in reacting cylinder body 2 Nozzle 6 is not provided with.Specifically, the lower end of reacting cylinder body 2 is not less than 0.8m away from the bottom of retort 1.In this way, flue gas is in reaction tube Moved from bottom to top in body 2, the alkali lye sprayed with nozzle 6 uniformly mixes, and carries out secondary response, further removes in flue gas SO2, improve contaminant removal efficiency, extend the reaction time compared with single column under identical height, flue gas and alkali lye it Between mixed aerosol uniformly, reaction fully, occupy little space.Preferably, in addition to spiral board 5, nesting are arranged at reacting cylinder body 2 It is interior, and positioned at the lower section of 2 inner nozzle of reacting cylinder body 6.The remaining reacted upper opening of cylinder 2 discharge of gas after secondary response, In order to be dehydrated to residual gas, in addition to flue 7 and demister 8, flue 7 mutually interconnect with the upper opening of reacting cylinder body 2 Logical, the nesting of demister 8 is arranged in flue 7.In order to reach more preferable dehydrating effect, the demister 8 that diameter is slightly larger can be set, Therefore the diameter of flue 7 of expansion demister 8 part is needed.Specifically, the flue 7 includes expanding pipeline section 71, big footpath straight length 72 and undergauge pipeline section 73, the expanding both ends of pipeline section 71 be respectively communicated with the upper opening of reacting cylinder body 2 and big footpath straight length 72, reducing pipe 73 one end of section connect with big footpath straight length 72, and expanding pipeline section 71 and undergauge pipeline section 73 gradually become closer to the big diameter of footpath straight length 72 Greatly, the nesting of demister 8 is arranged in big footpath straight length 72.To avoid dead angle and reducing flue gas flow rate, expanding pipeline section 71 is with 45 ° The external diameter size of demister 8 is extended on angular, after big footpath straight length 72 reserves the installation site of demister 8, undergauge pipeline section 73 is again Flow area of the flue gas flow rate as 15m/s is contracted to using 45° angle.Flue gas after depickling demisting enters next system along flue 7 Or it is directly entered aiutage discharge.Preferably, the big part of footpath straight length 72 is provided with electric dust collector, makes desulfurization Dust removal integrated equipment.

Specifically, the smoke-gas wet desulfurization equipment design parameter of the present invention is:The tangential linear speed of spiral flue gas in retort 1 Degree control flue gas rate of climb control in 4~5m/s, reacting cylinder body 2 is not less than in 2.5~3.5m/s, smoke reaction time 4s。

The better embodiment of the present invention is the foregoing is only, is not intended to limit the invention, it is all the present invention's Within spirit and principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.

Claims (9)

  1. A kind of 1. smoke-gas wet desulfurization equipment, it is characterised in that:It includes retort (1), reacting cylinder body (2), gas approach (3), sewage draining exit (4) and several nozzles (6), gas approach (3), sewage draining exit (4) are offered respectively in retort (1), react Cylinder (2) upper and lower part opening, reacting cylinder body (2) is through retort (1) top cover and seals therewith, reacting cylinder body (2) and retort (1) nozzle (6) is respectively arranged with.
  2. 2. smoke-gas wet desulfurization equipment as claimed in claim 1, it is characterised in that:Also include spiral board (5), nesting is arranged at In reacting cylinder body (2), and below reacting cylinder body (2) inner nozzle (6).
  3. 3. smoke-gas wet desulfurization equipment as claimed in claim 2, it is characterised in that:Also include flue (7) and demister (8), Flue (7) is interconnected with reacting cylinder body (2) upper opening, and demister (8) nesting is arranged in flue (7).
  4. 4. smoke-gas wet desulfurization equipment as claimed in claim 3, it is characterised in that:The flue (7) includes expanding pipeline section (71), big footpath straight length (72) and undergauge pipeline section (73), expanding pipeline section (71) both ends are respectively communicated with reacting cylinder body (2) upper opening With big footpath straight length (72), undergauge pipeline section (73) one end connects with big footpath straight length (72), expanding pipeline section (71) and undergauge pipeline section (73) become larger closer to big footpath straight length (72) diameter, demister (8) nesting is arranged in big footpath straight length (72).
  5. 5. smoke-gas wet desulfurization equipment as claimed in claim 3, it is characterised in that:Big footpath straight length (72) part is set There is electric dust collector.
  6. 6. smoke-gas wet desulfurization equipment as claimed in claim 1, it is characterised in that:Retort (1) cross section of inboard wall is Circle, gas approach (3) airintake direction is horizontal by 10~30 ° of angles and retort (1) cross section of inboard wall junction tangent line Angle is 0~20 °.
  7. 7. smoke-gas wet desulfurization equipment as claimed in claim 6, it is characterised in that:The gas approach (3) is arranged at reaction Above tank (1) inner nozzle (6), retort (1) inner nozzle (6) hydrojet direction and retort (1) cross section of inboard wall junction tangent line Angle is 0~20 °.
  8. 8. smoke-gas wet desulfurization equipment as claimed in claim 6, it is characterised in that:The nozzle (6) is arranged at flow of flue gas On direction.
  9. 9. smoke-gas wet desulfurization equipment as claimed in claim 1, it is characterised in that:The sewage draining exit (4) is arranged at retort (1) in side wall, and close to bottom, using DN300 blow-off pipes.
CN201710670363.XA 2017-08-08 2017-08-08 Wet flue gas desulfurization equipment CN107569983B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710670363.XA CN107569983B (en) 2017-08-08 2017-08-08 Wet flue gas desulfurization equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710670363.XA CN107569983B (en) 2017-08-08 2017-08-08 Wet flue gas desulfurization equipment

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CN107569983A true CN107569983A (en) 2018-01-12
CN107569983B CN107569983B (en) 2020-04-03

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2476735Y (en) * 2001-03-28 2002-02-13 何东飚 Top de-smoke treating apparatus
CN2636098Y (en) * 2003-08-07 2004-08-25 刘日民 Double-cylinder type foam desulfurization dust removing integrated device
CN1593717A (en) * 2004-07-15 2005-03-16 马鸿疆 Rotational flow venturi tube plate desulfurization dedusting purification tower
CN2740271Y (en) * 2004-10-14 2005-11-16 湘潭市南方高新技术研究院 Cyclone dust-collecting and desulphurizing plant
CN2936409Y (en) * 2006-07-24 2007-08-22 李长康 Super-filter water purifier
US20090320687A1 (en) * 2006-09-19 2009-12-31 Babcock-Hitachi Kabushiki Kaisha Wet-type exhaust desulfurizing apparatus
CN201894904U (en) * 2010-06-13 2011-07-13 贾玉德 Dual-cylinder rotational-flow bubbling dust removal and desulfurization gas cleaning device
CN102728210A (en) * 2012-07-11 2012-10-17 上海交通大学 Device for forced oxidation treatment of magnesium-method fume desulfurization slag slurry
CN203090752U (en) * 2013-03-21 2013-07-31 王丽 Double-pool wet-process flue gas dedusting and desulfurizing equipment
CN105536410A (en) * 2016-01-29 2016-05-04 孙立刚 Dehydration device of wet-method smoke purifier
CN105879636A (en) * 2016-04-19 2016-08-24 庄建中 Wet desulfurization equipment for coal fired boiler

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2476735Y (en) * 2001-03-28 2002-02-13 何东飚 Top de-smoke treating apparatus
CN2636098Y (en) * 2003-08-07 2004-08-25 刘日民 Double-cylinder type foam desulfurization dust removing integrated device
CN1593717A (en) * 2004-07-15 2005-03-16 马鸿疆 Rotational flow venturi tube plate desulfurization dedusting purification tower
CN2740271Y (en) * 2004-10-14 2005-11-16 湘潭市南方高新技术研究院 Cyclone dust-collecting and desulphurizing plant
CN2936409Y (en) * 2006-07-24 2007-08-22 李长康 Super-filter water purifier
US20090320687A1 (en) * 2006-09-19 2009-12-31 Babcock-Hitachi Kabushiki Kaisha Wet-type exhaust desulfurizing apparatus
CN201894904U (en) * 2010-06-13 2011-07-13 贾玉德 Dual-cylinder rotational-flow bubbling dust removal and desulfurization gas cleaning device
CN102728210A (en) * 2012-07-11 2012-10-17 上海交通大学 Device for forced oxidation treatment of magnesium-method fume desulfurization slag slurry
CN203090752U (en) * 2013-03-21 2013-07-31 王丽 Double-pool wet-process flue gas dedusting and desulfurizing equipment
CN105536410A (en) * 2016-01-29 2016-05-04 孙立刚 Dehydration device of wet-method smoke purifier
CN105879636A (en) * 2016-04-19 2016-08-24 庄建中 Wet desulfurization equipment for coal fired boiler

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