CN202860390U - Ammonia-process cleaning and purifying device of sulfur-containing tail gas - Google Patents
Ammonia-process cleaning and purifying device of sulfur-containing tail gas Download PDFInfo
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- CN202860390U CN202860390U CN201220556039.8U CN201220556039U CN202860390U CN 202860390 U CN202860390 U CN 202860390U CN 201220556039 U CN201220556039 U CN 201220556039U CN 202860390 U CN202860390 U CN 202860390U
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Abstract
The utility model discloses an ammonia-process cleaning and purifying device of sulfur-containing tail gas. The ammonia-process cleaning and purifying device comprises an ammonia-process cleaning and purifying tower of the sulfur-containing tail gas, a tail-gas absorber, an absorbing-liquid circulating groove, a cleaning-liquid circulating pump, a catalyst liquid mixing groove, an oxidation groove and an ammonium sulfate solution conveying pump. Compared with other domestic cleaning and absorbing devices of the sulfur-containing tail gas, the ammonia-process cleaning and purifying device has the advantages that the existing absorbing tower of the sulfuric acid device can be utilized for equipment improvement so as to become a desulfurized tail gas cleaning tower for in-situ internal improvement; and the top of the tower is directly provided with a tail-gas chimney for emptying, and no new tail-gas cleaning tower or new land needs to be built and added, so that not only are the used land and the investment saved, but also the production during improvement can be normally carried out. The ammonia-process cleaning and purifying device disclosed by the utility model is very suitable for energy-saving and emission-reducing improvement of mass sulfuric acid production enterprises.
Description
Technical field
The utility model belongs to Chemical Engineering and environmental protection technical field, is specifically related to a kind of sulfur-containing tail gas ammonia process washing purifying device.
Background technology
The tail gas SO of China's sulfuric acid industry
2The former execution of discharge standard " discharge standard of air pollutants " GB16297-1996, its highest permission SO
2Concentration of emission is 960mg/m
3With the needs of country's " 12 " energy-saving and emission-reduction, domestic sulfuric acid industry must further be cut down SO
2Discharge capacity.Therefore; national environmental protection section and quality supervision and test quarantine general bureau unites on December 30th, 2010 and has promulgated " sulfuric acid industry pollutant emission standard " GB26132-2010; this standard code was from 1 day March in 2011; new enterprise carries out new Air Pollutant Emission limit value; from 1 day October in 2013, existing enterprise carried out new Air Pollutant Emission limit value.This limit value is with SO
2Concentration of emission is reduced to 400mg/m
3
Therefore, existing sulphuric acid production enterprises all is necessary the SO to existing tail gas
2Carrying out desulfurization absorbs.The method of the low-concentration sulfur dioxide tail gas desulfurization of sulfuric acid industry is a lot, but economical and practical technology and few, wherein general with ammonia-acid system.Metallurgical gas and means of flue gas desulfurization of power plant have begun extensively to adopt ammonia process in recent years, and the tail gas sulphur dioxide discharging is significantly alleviated.
Summary of the invention
The purpose of this utility model is to overcome problems of the prior art, and a kind of sulfur-containing tail gas ammonia process washing purifying device is provided.
The technical solution of the utility model is:
A kind of sulfur-containing tail gas ammonia process washing purifying device, it comprises sulphur tail gas by ammonia method washing, purifying tower, tail gas absorber, absorption liquid circulating slot, detergent circulator, catalyst liquid preparation vessel, oxidation trough and ammonium sulfate delivery pump; Be respectively equipped with the fresh water (FW) mouth spray that is positioned at tower top, the cleaning solution outlet that is positioned at cleaning solution import, the emptying gas import that is positioned at the tower bottom and the SO 2 tail gas import at tower middle part and is positioned at tower bottom on the described sulphur tail gas by ammonia method washing, purifying tower; The outlet of described tail gas absorber links to each other with described SO 2 tail gas import, the cleaning solution outlet of described sulphur tail gas by ammonia method washing, purifying tower communicates with described absorption liquid circulating slot by the cleaning solution gravity line, and cleaning solution import and the described oxidation trough of described tail gas absorber, described sulphur tail gas by ammonia method washing, purifying tower led to respectively in the cleaning solution outlet of described absorption liquid circulating slot through described detergent circulator; The catalyst liquid preparation vessel on described oxidation trough top communicates with oxidation trough inside by the catalyst solution carrier pipe, and the cleaning solution outlet of described oxidation trough connects described ammonium sulfate delivery pump; The emptying gas outlet at described oxidation trough and absorption liquid circulating slot top links to each other by the emptying gas import of emptying gas pipe with described sulphur tail gas by ammonia method washing, purifying tower respectively.
The top of the sulphur tail gas by ammonia method washing, purifying tower in the utility model is provided with tail gas funnel and small-sized pylon; Top in the sulphur tail gas by ammonia method washing, purifying tower is provided with upper, middle and lower-ranking fresh water (FW) shower and the two-layer demister between this three layer process water sprayer tube, the entrance of described fresh water (FW) shower links to each other with the fresh water (FW) mouth spray of sulphur tail gas by ammonia method washing, purifying tower respectively, on the described fresh water (FW) shower a plurality of Flushing nozzles is housed; Under described lower floor fresh water (FW) shower, be provided with cleaning solution distributing pipe, vertical centering control core barrel and a plurality of cleaning solution shower, the entrance of described cleaning solution distributing pipe links to each other with the cleaning solution import of sulphur tail gas by ammonia method washing, purifying tower, described vertical centering control core barrel communicates with cleaning solution distributing pipe cross and inside, and the internal diameter of vertical centering control core barrel is greater than described cleaning solution distributing pipe.The cleaning solution shower of a plurality of layerings is connected with described vertical centering control core barrel respectively.Every layer of cleaning solution shower all drawn from described vertical centering control core barrel, and multi-wash liquid shower is pinniform and distributes at the tower body interface, be that a plurality of shower nozzles are housed at each cleaning solution shower.
Purification tower for washing sulfur-containing tail gas by ammonia method can utilize the absorption tower transformation of existing sulfuric acid apparatus to form, and each the main mouth of pipe of purification tower for washing sulfur-containing tail gas by ammonia method that forms through transformation all remains unchanged, and inner transformation is very little.By at the tower center cleaning solution distributing pipe being set, the vertical centering control core barrel of cleaning solution distributing pipe is supported on the original filler support of equipment, cleaning solution can be distributed and introduce device interior, do not need to open inlet in the original equipment lower case, make whole equipment anticorrosion structure be improved reservation, so the scrap build investment is very little.
Tail gas absorber is provided with the outlet of SO 2 tail gas import, the import of tail gas absorber cleaning solution and SO 2 tail gas, and the pipeline that described detergent circulator leads to tail gas absorber links to each other with the import of described tail gas absorber cleaning solution.Tail gas absorber is arranged on before the SO 2 tail gas import on the purification tower for washing sulfur-containing tail gas by ammonia method, can be provided with 6 layers of cleaning solution import on the tail gas absorber, and SO 2 tail gas is advanced pre-wash before the tower.
Because liquid storage limited space at the bottom of the tower, at tail gas by ammonia method washing, purifying tower outer setting absorption liquid circulating slot, the cleaning solution in the tail gas by ammonia method washing, purifying tower enters in the absorption liquid circulating slot by the cleaning solution gravity line.The absorption liquid circulating slot is provided with cleaning solution outlet, cleaning solution entrance, compressed air inlet, fresh water (FW) entrance, ammoniacal liquor import and emptying gas outlet, in receiving the liquid circulating slot compressed air bubbling device and dividing plate is housed; Described cleaning solution outlet links to each other with the entrance of described detergent circulator, and described cleaning solution entrance links to each other with described cleaning solution gravity line, and described compressed air inlet links to each other with described compressed air bubbling device.The absorption liquid circulating slot is vertical type cylinder shape storage tank.Fresh water (FW) import and ammoniacal liquor import are inserted into below the liquid level by sleeve pipe.Dividing plate can increase residence time of material, improves reaction efficiency, and can avoid gas to enter the pump housing with cleaning solution causing cavitation erosion.The compressed air bubbling device can make compressed air be evenly distributed, and improves reaction efficiency, and can avoid cleaning solution to enter bubbling pipe causing Corrosion blockage.
Oxidation trough is provided with emptying gas outlet, catalyst solution import, ammoniacal liquor import, compressed air inlet, cleaning solution import and cleaning solution outlet; Be provided with dividing plate and compressed air bubbling device in the described oxidation trough; Described catalyst solution import communicates with described catalyst liquid preparation vessel, the compressed air inlet of described oxidation trough links to each other with its inner compressed air bubbling device, described cleaning solution import links to each other with described detergent circulator, and described cleaning solution outlet links to each other with the entrance of described ammonium sulfate delivery pump.Catalyst solution import and ammoniacal liquor import are inserted into below the liquid level by sleeve pipe.Dividing plate can increase residence time of material, improves reaction efficiency, and can avoid gas to enter the pump housing with cleaning solution causing cavitation erosion.The compressed air bubbling device can make compressed air be evenly distributed, and improves reaction efficiency, and can avoid cleaning solution to enter bubbling pipe causing Corrosion blockage.
Catalyst liquid preparation vessel is provided with catalyst inlet, fresh water (FW) import, catalyst solution outlet and catalyst solution carrier pipe; One end of described catalyst solution carrier pipe connects the catalyst solution outlet, and the other end connects the catalyst solution import of described oxidation trough.Catalyst (iron oxide or the manganese oxide) solution of preparation enters in the oxidation trough by the catalyst solution carrier pipe in the catalyst liquid preparation vessel, and catalyst can be accelerated oxidation reaction speed, improves efficiency.
The beneficial effects of the utility model are: purification tower for washing sulfur-containing tail gas by ammonia method is compared with domestic other sulfur-containing tail gas washing absorption equipment, can utilize the absorption tower of existing sulfuric acid apparatus to carry out scrap build and become the desulfidation tail gas scrubbing tower, it is carried out the inner transformation of original position, cat head directly arranges tail gas funnel emptying, need not newly-built tail gas washing tower and newly-increased land used, both saved the area and invested, make again to produce during the transformation and normally carried out, be fit to very much the energy-saving and emission-reduction transformation of vast sulphuric acid production enterprises.
The utility model adopts 10% ammoniacal liquor as desulfurizing agent, advances system's tail gas and contains SO
2Concentration is 960mg/m
3, emission contains SO after the washing
2Concentration is less than 100mg/m
3, sulfuric acid mist concentration is less than 5mg/m
3, SO
2Concentration of emission is united 400mg/m among " sulfuric acid industry pollutant emission standard " GB26132-2010 of promulgation well below national environmental protection section and quality supervision and test quarantine general bureau on December 30th, 2010
3Requirement.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Comprise among the figure: 1 purification tower for washing sulfur-containing tail gas by ammonia method, 2 tail gas funnels, 3 small-sized pylons, 4 fresh water (FW) mouth sprays, 5 sulphur tail gas by ammonia method washing, purifying tower cleaning solution imports, the emptying gas import of 6 sulphur tail gas by ammonia method washing, purifying towers, the SO 2 tail gas import of 7 sulphur tail gas by ammonia method washing, purifying towers, the cleaning solution outlet of 8 sulphur tail gas by ammonia method washing, purifying towers, 9 fresh water (FW) showers, 10 demisters, 11 cleaning solution distributing pipes, 12 cleaning solution showers, 13 cleaning solution gravity lines, 14 tail gas absorber, 15 SO 2 tail gas imports, the cleaning solution import of 16 tail gas absorber, the outlet of 17 SO 2 tail gas, 18 absorption liquid circulating slots, the emptying gas outlet of 19 absorption liquid circulating slots, the fresh water (FW) entrance of 20 absorption liquid circulating slots, the ammoniacal liquor import of 21 absorption liquid circulating slots, the compressed air inlet of 22 absorption liquid circulating slots, the cleaning solution entrance of 23 absorption liquid circulating slots, the cleaning solution outlet of 24 absorption liquid circulating slots, 25 dividing plates, 26 dividing plates, 27 compressed air bubbling devices, 28 emptying gas pipes, 29 detergent circulators, 30 catalyst liquid preparation vessels, 31 catalyst inlets, 32 fresh water (FW) imports, the outlet of 33 catalyst solutions, 34 catalyst solution carrier pipes, 35 oxidation troughs, the emptying gas outlet of 36 oxidation troughs, 37 catalyst solution imports, the ammoniacal liquor import of 38 oxidation troughs, the compressed air inlet of 39 oxidation troughs, the cleaning solution import of 40 oxidation troughs, the cleaning solution outlet of 41 oxidation troughs, 42 dividing plates, 43 dividing plates, 44 compressed air bubbling devices, 45 ammonium sulfate delivery pumps.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in the figure, this sulfur-containing tail gas ammonia process washing purifying device comprises sulphur tail gas by ammonia method washing, purifying tower (1), tail gas absorber (14), absorption liquid circulating slot (18), detergent circulator (29), catalyst liquid preparation vessel (30), oxidation trough (35) and ammonium sulfate delivery pump (45).
Be respectively equipped with the fresh water (FW) mouth spray (4) that is positioned at tower top, the cleaning solution outlet (8) that is positioned at cleaning solution import (5), the emptying gas import (6) that is positioned at the tower bottom and the SO 2 tail gas import (7) at tower middle part and is positioned at tower bottom on the described sulphur tail gas by ammonia method washing, purifying tower (1); The outlet (17) of described tail gas absorber (14) links to each other with described SO 2 tail gas import (7), the cleaning solution outlet (8) of described sulphur tail gas by ammonia method washing, purifying tower communicates with described absorption liquid circulating slot (18) by cleaning solution gravity line (13), and cleaning solution import (5) and the described oxidation trough (35) of described tail gas absorber (14), described sulphur tail gas by ammonia method washing, purifying tower led to respectively in the cleaning solution outlet of described absorption liquid circulating slot (18) through described detergent circulator (29); The catalyst liquid preparation vessel (30) on described oxidation trough (35) top communicates with oxidation trough (35) inside by catalyst solution carrier pipe (34), and the cleaning solution outlet of described oxidation trough (35) connects described ammonium sulfate delivery pump (45); The emptying gas outlet at described oxidation trough (35) and absorption liquid circulating slot (18) top links to each other by the emptying gas import (6) of emptying gas pipe (28) with described sulphur tail gas by ammonia method washing, purifying tower respectively.
The top of sulphur tail gas by ammonia method washing, purifying tower (1) is provided with tail gas funnel (2) and small-sized pylon (3); Top in the sulphur tail gas by ammonia method washing, purifying tower (1) is provided with upper, middle and lower-ranking fresh water (FW) shower (9) and is positioned at two-layer demister (10) between this three layer process water sprayer tube (9), the entrance of described fresh water (FW) shower (9) links to each other with the fresh water (FW) mouth spray (4) of sulphur tail gas by ammonia method washing, purifying tower respectively, on the described fresh water (FW) shower (9) a plurality of Flushing nozzles is housed; Under described lower floor's fresh water (FW) shower (9), be provided with cleaning solution distributing pipe (11), vertical centering control core barrel and a plurality of cleaning solution shower (12), the entrance of described cleaning solution distributing pipe (11) links to each other with the cleaning solution import (5) of sulphur tail gas by ammonia method washing, purifying tower, described vertical centering control core barrel communicates with cleaning solution distributing pipe (11) cross and inside, and the internal diameter of described vertical centering control core barrel is greater than described cleaning solution distributing pipe (11).The cleaning solution shower (12) of described a plurality of layerings is connected with described vertical centering control core barrel respectively.Every layer of cleaning solution shower (12) all drawn from described vertical centering control core barrel, and multi-wash liquid shower (12) is pinniform and distributes at the tower body interface, be that a plurality of shower nozzles are housed at each cleaning solution shower (12).
Tail gas absorber (14) is provided with the outlet (17) of SO 2 tail gas import (15), tail gas absorber cleaning solution import (16) and SO 2 tail gas, and the pipeline that described detergent circulator (29) leads to tail gas absorber (14) links to each other with described tail gas absorber cleaning solution import (16).
Absorption liquid circulating slot (18) is provided with cleaning solution outlet (24), cleaning solution entrance (23), compressed air inlet (22), ammoniacal liquor import (21), fresh water (FW) entrance (20) and emptying gas outlet (19), in receiving liquid circulating slot (18), compressed air bubbling device (27) and dividing plate (25,26) are housed; Described cleaning solution outlet (24) links to each other with the entrance of described detergent circulator (29), described cleaning solution entrance (23) links to each other with described cleaning solution gravity line (13), and described compressed air inlet (22) link to each other with described compressed air bubbling device (27).
Oxidation trough (35) is provided with emptying gas outlet (36), catalyst solution import (37), ammoniacal liquor import (38), compressed air inlet (39), cleaning solution import (40) and cleaning solution outlet (41); Be provided with dividing plate (42,43) and compressed air bubbling device (44) in the described oxidation trough (35); Described catalyst solution import (37) communicates with described catalyst liquid preparation vessel (30), the compressed air inlet of described oxidation trough (39) links to each other with its inner compressed air bubbling device (44), described cleaning solution import (40) links to each other with described detergent circulator (29), and described cleaning solution outlet (41) links to each other with the entrance of described ammonium sulfate delivery pump (45).
Catalyst liquid preparation vessel (30) is provided with catalyst inlet (31), fresh water (FW) import (32), catalyst solution outlet (33) and catalyst solution carrier pipe (34); One end of described catalyst solution carrier pipe (34) connects catalyst solution outlet (33), and the other end connects the catalyst solution import (37) of described oxidation trough.
During operation, contain SO from system
2Tail gas enter tail gas absorber (14) from SO 2 tail gas import (15) first, absorbed by the ammonium sulfurous solution washing of the reverse spray of sending into from 6 layers of cleaning solution import (16) and remove its contained most of SO
2, simultaneously with the gas decreasing temperature and increasing humidity.The gas-liquid mixture of discharging from tail gas absorber (14) enters purification tower for washing sulfur-containing tail gas by ammonia method (1) bottom from SO 2 tail gas outlet (17), and gas-liquid mixture is after the tower lower space is finished gas-liquid separation, and gas rises along tower by ball collar under the tower.Purification tower for washing sulfur-containing tail gas by ammonia method (1) is the idle absorption tower of system, and its structure is the packed tower of box hat liner acid-proof ceramic tile.The utility model transform it as spray void tower, and installs 2 layers of baffle plate demister (10) additional in the top, as the absorption tower, the second level of tail gas.The air-flow that rises on the ball collar space is from bottom to top by 4 layers of ammonium sulfurous cleaning solution shower (12), with SO in the tail gas
2Further absorb.After the gas that goes out spray section is removed its liquid foam of carrying secretly by 2 layers of demister (10) from bottom to top again, by cat head tail gas funnel (2) emptying.
The absorption of discharging from tail gas absorber (14) and purification tower for washing sulfur-containing tail gas by ammonia method (1) SO
2Ammonium sulfurous liquid, then poor cleaning solution outlet (8) and the cleaning solution gravity line (13) by purification tower for washing sulfur-containing tail gas by ammonia method (1) bottom of borrow flows automatically and enters absorption liquid circulating slot (18).In absorption liquid circulating slot (18), add 10% ammoniacal liquor by ammoniacal liquor import (21), and blast compressed air by compressed air bubbling device (27), recover the ammonium sulfurous cleaning solution of absorbability by detergent circulator (29), it is returned the SO that continues in tail gas absorber (14) and the purification tower for washing sulfur-containing tail gas by ammonia method (1) in the circulation cleaning absorption tail gas
2Simultaneously, from the NH that contains of system produce
4HSO
3, (NH
4)
2SO
3(NH
4)
2SO
4The aqueous solution also is admitted in the oxidation trough (35) by detergent circulator (29) and carries out oxidation.In oxidation trough (35), add 10% ammoniacal liquor by ammoniacal liquor import (38), and blast compressed air by compressed air bubbling device (44).For accelerating the oxidation process of ammonium sulfurous solution, at oxidation trough (35) top catalyst liquid preparation vessel (30) is set, will be modulated into certain density catalyst (iron oxide or the manganese oxide) aqueous solution and adds in the oxidation trough (35) by catalyst solution carrier pipe (34).In oxidation trough (35), finish the aqueous solution that is converted into ammonium sulfate by the sulfurous acid ammonium salt, then be sent to multiple fertilizer by ammonium sulfate delivery pump (45) or phosphoric acid plant is recycled as raw material.
This sulfur-containing tail gas ammonia process washing purifying device is the depletion system, discharges without waste liquid under normal circumstances.The fresh water (FW) that fills into to system is the mode with purification tower for washing sulfur-containing tail gas by ammonia method (1) top demister (10) technique flushing water, from demister (10) top and/or the below 3 layer process water mouth sprays (4) and the fresh water (FW) shower (9) that arrange fill into system.
Purification tower for washing sulfur-containing tail gas by ammonia method in the utility model (1) can be formed by the transformation of sulfuric acid apparatus absorption tower, its structure was the packed tower of box hat liner acid-proof ceramic tile originally, transform it as spray void tower, and install tail gas funnel (2) additional at its top, small-sized pylon (3) and 2 layers of demister (10).Cleaning solution import (5), emptying gas import (6), SO 2 tail gas import (7) and cleaning solution outlet (8) all can utilize the original mouth of pipe of equipment, wherein emptying gas import (6) is the original manhole of equipment, and cleaning solution import (5) is the original acid trap import of equipment.Fresh water (FW) mouth spray (4) is the newly-increased mouth of pipe, is used for cleaning demister (10).
In existing absorption tower was transformed, original equipment bottom carbon steel section lining and filler support were all kept, and filler is removed.Utilize former acid trap interface as cleaning solution import (5), feed tube crosses scrubbing tower, as supporting traverse.Purification tower for washing sulfur-containing tail gas by ammonia method (1) center arranges footpath at a gulp vertical centering control core barrel, and its caliber is greater than feed tube, and sectional area is 1.5 times of feed tube, and bottom support is on the existing equipment filler support, and the top extends to original equipment demister support place.This vertical centering control core barrel and cleaning solution distributing pipe (11) and cleaning solution shower (12) cross, the spray system support of formation purification tower for washing sulfur-containing tail gas by ammonia method (1).The top of vertical centering control core barrel and bottom all use blind plate blind dead, and the circular hole of Φ 10 is opened at blind plate middle part in bottom.4 layers of cleaning solution shower (12) are set in the purification tower for washing sulfur-containing tail gas by ammonia method (1), every layer of cleaning solution shower (12) all drawn from the vertical centering control core barrel, be pinniform at the tower body interface and arrange, and a plurality of shower nozzles are set evenly distribute to guarantee tower body interface cleaning solution.
Former absorption tower upper body is stainless steel material, is furnished with fiber demister and support thereof.During transformation, change the fiber demister dismounting into ripple demister (10), demister (10) top and/or bottom are equipped with Flushing nozzle.The fresh water (FW) mouth spray (4) that ripple demister (10) is joined is at the tower wall opening, and fresh water (FW) shower (9) also is pinniform on the tower body interface arranges, and a plurality of Flushing nozzles are set do not have the dead angle with the washing that guarantees demister (10).
The top of purification tower for washing sulfur-containing tail gas by ammonia method (1) directly arranges tail gas funnel (2) and carries out exhaust emissions.Because the height of tower body itself, the length of tail gas funnel (2) is controlled in the 20m, can adopt fiberglass to make, and utilize purification tower for washing sulfur-containing tail gas by ammonia method (1) top that small-sized pylon (3) is set tail gas funnel (2) is supported, so need not newly-built tail gas washing tower and newly-increased land used.
Claims (8)
1. a sulfur-containing tail gas ammonia process washing purifying device is characterized in that it comprises sulphur tail gas by ammonia method washing, purifying tower (1), tail gas absorber (14), absorption liquid circulating slot (18), detergent circulator (29), catalyst liquid preparation vessel (30), oxidation trough (35) and ammonium sulfate delivery pump (45); Be respectively equipped with the fresh water (FW) mouth spray (4) that is positioned at tower top, the cleaning solution outlet (8) that is positioned at cleaning solution import (5), the emptying gas import (6) that is positioned at the tower bottom and the SO 2 tail gas import (7) at tower middle part and is positioned at tower bottom on the described sulphur tail gas by ammonia method washing, purifying tower (1); The outlet (17) of described tail gas absorber (14) links to each other with described SO 2 tail gas import (7), the cleaning solution outlet (8) of described sulphur tail gas by ammonia method washing, purifying tower communicates with described absorption liquid circulating slot (18) by cleaning solution gravity line (13), and cleaning solution import (5) and the described oxidation trough (35) of described tail gas absorber (14), described sulphur tail gas by ammonia method washing, purifying tower led to respectively in the cleaning solution outlet of described absorption liquid circulating slot (18) through described detergent circulator (29); The catalyst liquid preparation vessel (30) on described oxidation trough (35) top communicates with oxidation trough (35) inside by catalyst solution carrier pipe (34), and the cleaning solution outlet of described oxidation trough (35) connects described ammonium sulfate delivery pump (45); The emptying gas outlet at described oxidation trough (35) and absorption liquid circulating slot (18) top links to each other by the emptying gas import (6) of emptying gas pipe (28) with described sulphur tail gas by ammonia method washing, purifying tower respectively.
2. sulfur-containing tail gas ammonia process washing purifying device according to claim 1, it is characterized in that top in the described sulphur tail gas by ammonia method washing, purifying tower (1) is provided with upper, middle and lower-ranking fresh water (FW) shower (9) and is positioned at two-layer demister (10) between this three layer process water sprayer tube (9), the entrance of described fresh water (FW) shower (9) links to each other with the fresh water (FW) mouth spray (4) of sulphur tail gas by ammonia method washing, purifying tower respectively, on the described fresh water (FW) shower (9) a plurality of Flushing nozzles is housed; Under described lower floor's fresh water (FW) shower (9), be provided with cleaning solution distributing pipe (11), vertical centering control core barrel and a plurality of cleaning solution shower (12), the entrance of described cleaning solution distributing pipe (11) links to each other with the cleaning solution import (5) of sulphur tail gas by ammonia method washing, purifying tower, described vertical centering control core barrel communicates with cleaning solution distributing pipe (11) cross and inside, and the cleaning solution shower (12) of described a plurality of layerings is connected with described vertical centering control core barrel respectively.
3. sulfur-containing tail gas ammonia process washing purifying device according to claim 2 is characterized in that the top of described sulphur tail gas by ammonia method washing, purifying tower (1) is provided with tail gas funnel (2) and small-sized pylon (3); The internal diameter of described vertical centering control core barrel is greater than described cleaning solution distributing pipe (11).
4. sulfur-containing tail gas ammonia process washing purifying device according to claim 2, it is characterized in that every layer of cleaning solution shower (12) all draw from described vertical centering control core barrel, multi-wash liquid shower (12) is pinniform and distributes at the tower body interface, be that a plurality of shower nozzles are housed at each cleaning solution shower (12).
5. sulfur-containing tail gas ammonia process washing purifying device according to claim 1, it is characterized in that described tail gas absorber (14) is provided with the outlet (17) of SO 2 tail gas import (15), tail gas absorber cleaning solution import (16) and SO 2 tail gas, the pipeline that described detergent circulator (29) leads to tail gas absorber (14) links to each other with described tail gas absorber cleaning solution import (16).
6. sulfur-containing tail gas ammonia process washing purifying device according to claim 1, it is characterized in that described absorption liquid circulating slot (18) is provided with cleaning solution outlet (24), cleaning solution entrance (23), compressed air inlet (22), ammoniacal liquor import (21), fresh water (FW) entrance (20) and emptying gas outlet (19), in receiving liquid circulating slot (18), compressed air bubbling device (27) and dividing plate (25,26) are housed; Described cleaning solution outlet (24) links to each other with the entrance of described detergent circulator (29), described cleaning solution entrance (23) links to each other with described cleaning solution gravity line (13), and described compressed air inlet (22) link to each other with described compressed air bubbling device (27).
7. sulfur-containing tail gas ammonia process washing purifying device according to claim 1 is characterized in that described oxidation trough (35) is provided with emptying gas outlet (36), catalyst solution import (37), ammoniacal liquor import (38), compressed air inlet (39), cleaning solution import (40) and cleaning solution outlet (41); Be provided with dividing plate (42,43) and compressed air bubbling device (44) in the described oxidation trough (35); Described catalyst solution import (37) communicates with described catalyst liquid preparation vessel (30), the compressed air inlet of described oxidation trough (39) links to each other with its inner compressed air bubbling device (44), described cleaning solution import (40) links to each other with described detergent circulator (29), and described cleaning solution outlet (41) links to each other with the entrance of described ammonium sulfate delivery pump (45).
8. sulfur-containing tail gas ammonia process washing purifying device according to claim 1 is characterized in that described catalyst liquid preparation vessel (30) is provided with catalyst inlet (31), fresh water (FW) import (32), catalyst solution outlet (33) and catalyst solution carrier pipe (34); One end of described catalyst solution carrier pipe (34) connects catalyst solution outlet (33), and the other end connects the catalyst solution import (37) of described oxidation trough.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105403057A (en) * | 2014-09-10 | 2016-03-16 | 中国石油化工股份有限公司 | Method for treating roasting tail gas of molecular sieve |
| CN110523244A (en) * | 2019-08-19 | 2019-12-03 | 航天环境工程有限公司 | Flow-disturbing oxidation unit and application are strengthened in a kind of ammonia process of desulfurization |
| CN112591717A (en) * | 2020-12-25 | 2021-04-02 | 上海六谦工程科技有限公司 | Multistage steady voltage stationary flow divides sour ware |
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2012
- 2012-10-26 CN CN201220556039.8U patent/CN202860390U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403057A (en) * | 2014-09-10 | 2016-03-16 | 中国石油化工股份有限公司 | Method for treating roasting tail gas of molecular sieve |
| CN110523244A (en) * | 2019-08-19 | 2019-12-03 | 航天环境工程有限公司 | Flow-disturbing oxidation unit and application are strengthened in a kind of ammonia process of desulfurization |
| CN112591717A (en) * | 2020-12-25 | 2021-04-02 | 上海六谦工程科技有限公司 | Multistage steady voltage stationary flow divides sour ware |
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