CN110302656A - A kind of ship desulfurization dust-removal system - Google Patents

A kind of ship desulfurization dust-removal system Download PDF

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Publication number
CN110302656A
CN110302656A CN201910589543.4A CN201910589543A CN110302656A CN 110302656 A CN110302656 A CN 110302656A CN 201910589543 A CN201910589543 A CN 201910589543A CN 110302656 A CN110302656 A CN 110302656A
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CN
China
Prior art keywords
dust
deduster
flue
removal system
branch
Prior art date
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Pending
Application number
CN201910589543.4A
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Chinese (zh)
Inventor
张煊京
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Individual
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Individual
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Priority to CN201910589543.4A priority Critical patent/CN110302656A/en
Publication of CN110302656A publication Critical patent/CN110302656A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/508—Sulfur oxides by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/68—Halogens or halogen compounds
    • B01D53/685—Halogens or halogen compounds by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81—Solid phase processes
    • B01D53/83—Solid phase processes with moving reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/304—Alkali metal compounds of sodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/204—Inorganic halogen compounds
    • B01D2257/2045—Hydrochloric acid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/204—Inorganic halogen compounds
    • B01D2257/2047—Hydrofluoric acid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases

Abstract

The present invention discloses a kind of ship desulfurization dust-removal system, belong to ship flue gas desulfurization technique field, including being sequentially connected flue, dedusting fan and chimney, the upstream position of the flue is connected with desulfurizing agent supply unit, and the downstream position of the flue is equipped with dust removing units；The desulfurization supply unit includes sequentially connected station of unpacking, grinding machine, intermediate bin and powder conveyer, and the output channel of the powder conveyer is connect with the flue, and the end of the output channel is equipped with injection apparatus.Present system is succinct, and convenient operating maintenance, one-time investment is few, and occupied area is small, and operating cost is low；It for absolutely dry system, is not necessarily to use water, does not easily cause secondary pollution；The by-product that flue gas generates after deduster gas solid separation can be used for the commercial recoveries such as cement, glass, chemical industry, papermaking, dyestuff, printing and dyeing；Desulfuration efficiency height, high dust collection efficiency fully meet domestic and international environmental protection to sulfur dioxide (SO2) emissions technical requirements.

Description

A kind of ship desulfurization dust-removal system
Technical field
The present invention relates to ship flue gas desulfurization technique field, in particular to a kind of ship desulfurization dust-removal system.
Background technique
The field of ship flue gas desulfurization at this stage only has seawer washing sulfur removal technology being widely used, but drawback is also very prominent Out.Since available space is limited on ship, desulfurizing tower front end on ship without effective pre- cleaner, particulate matter is exceeded, Grain object dust emission, the waste water generated after desulfurization easily cause secondary pollution.With the promulgation that limit sulphur enables, countries in the world will be held successively The stringenter environmental standard of row, current sea water desulfuration mode will face the risk of Overall Reconstruction or the second investment.Desulfurizing tower It is all not that system occupied space is big, the elevation angle or inclination effect are generated to ship, invests the problems such as big, operating cost is high, long in time limit It is evitable.Therefore, it needs to develop a whole set of ship desulfurization and dedusting technology at present, efficiently solves sea water desulfuration method institute The drawbacks of there are problems that.
Summary of the invention
The present invention provides a kind of ship desulfurization dust-removal system, and it is big, right to solve existing ship desulfurization Tower System occupied space Ship leads to the problem of the elevation angle or inclination effect.
In order to solve the above technical problems, the technical solution of the present invention is as follows:
A kind of ship desulfurization dust-removal system, including it is sequentially connected flue, dedusting fan and chimney, the flue Upstream position be connected with desulfurizing agent supply unit, the downstream position of the flue is equipped with dust removing units；The desulfurization is defeated Sending unit includes sequentially connected station of unpacking, grinding machine, intermediate bin and powder conveyer, the output channel of the powder conveyer with The flue connection, the end of the output channel are equipped with injection apparatus.
Wherein it is preferred to first discharger of bottom connection of standing of unpacking.
Wherein it is preferred to which the top of the grinding machine is equipped with clasfficiator.
Wherein it is preferred to which the intermediate bin top connects the first blower.
Wherein it is preferred to which the bottom of the intermediate bin is equipped with the second discharger, plate is equipped with above second discharger Valve.
Wherein it is preferred to which the powder conveyer is connected with the second blower.
Wherein it is preferred to which the dust removing units include the first deduster and the second deduster, the flue is equipped with simultaneously Join the first branch and second branch of connection, the first branch and the second branch are located under the desulfurizing agent supply unit Position is swum, first deduster is located in the first branch, and second deduster is located in the second branch.
Wherein it is preferred to which being located at the first deduster upstream position in the first branch is equipped with mixer selector valve.
Wherein it is preferred to further include dust conveyer, respectively with the dust of first deduster and the second deduster Delivery outlet connection.
Wherein it is preferred to which first deduster and second deduster are sinter-plate precipitator.
Dry method ship desulphurization system of the present invention is made of dry method desulfuration system+high-efficiency dust removal system, efficient dry desulfurization System sulfur dioxide emissioning concentration is substantially lower than the regulation of national standard sulfur dioxide emissioning concentration 0.5%m/m, and high-efficiency dust removal system removes For dirt efficiency up to 99.99%, granular material discharged concentration is far smaller than the granular material discharged concentration of national standard less than or equal to 20mg/m3Rule It is fixed.
Beneficial effects of the present invention:
1. present system is succinct, convenient operating maintenance, one-time investment is few, and occupied area is small, and operating cost is low；
2. the present invention is absolutely dry system, without using water, secondary pollution is not easily caused；
3. the present invention can control desulfurizing agent dosage according to amount of sulfur contenting in smoke；
4. the by-product that flue gas of the present invention generates after deduster gas solid separation can be used for cement, glass, chemical industry, papermaking, The commercial recoveries such as dyestuff, printing and dyeing.
5. present device is stable, spare part long service life, maintenance period is long；
6. inventive desulfurization is high-efficient, high dust collection efficiency, domestic and international environmental protection is fully met to sulfur dioxide (SO2) emissions Technical requirements.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is the flow diagram of ship desulfurization dust-removal system of the present invention.
In figure: 1. flues, 2. dedusting fans, 3. chimneys, 4. unpack station, 5. first dischargers, 6. grinding machines, 7. classifications Device, 8. intermediate bins, 9. first blowers, 10. gate valves, 11. second dischargers, 12. powder conveyers, 13. second blowers, 14. Output channel, 15. first dedusters, 16. second dedusters, 17. first branchs, 18. second branchs, 19. mixer selector valves, 20. powder Dirt conveying device
Specific embodiment
Below in conjunction with the specific embodiment of the invention, technical solution of the present invention is clearly and completely described, is shown So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to In the scope of protection of the invention.
As shown in Figure 1, the present embodiment provides a kind of ship desulfurization dust-removal systems, including it is sequentially connected flue 1, dedusting Blower 2 and chimney 3, the upstream position of flue 1 are connected with desulfurizing agent supply unit, and the downstream position of flue 1 is equipped with Dust removing units；Desulfurization supply unit includes sequentially connected station 4 of unpacking, grinding machine 6, intermediate bin 8 and powder conveyer, powder conveying The output channel 14 of machine is connect with flue 1, and the end of output channel 14 is equipped with injection apparatus (not shown).
Wherein, unpack station 4 bottoms connect the first discharger 5, for unpack station 4 in desulfurizing agent carry out discharging.
Wherein, the top of grinding machine 6 is equipped with clasfficiator 7, for carrying out extension set to the material in grinding machine 6.In order to remove centre The dust in storehouse 8,8 top of intermediate bin are connected with the first blower 9,
Wherein, the bottom of intermediate bin 8 is equipped with the second discharger 11, is equipped with gate valve 10 above the second discharger 11.
Wherein, powder conveyer is connected with the second blower 13, provides power for the conveying of powder conveyer.
Wherein, dust removing units include the first deduster 15 and the second deduster 16, and flue 1 is equipped with the be connected in parallel One branch 17 and second branch 18, the first branch 17 and second branch 18 are located at desulfurizing agent supply unit downstream position, and first removes Dirt device 15 is located in the first branch 17, and the second deduster 16 is located in second branch 18；It is located at the first dedusting in the first branch 17 15 upstream position of device is equipped with mixer selector valve 19.
Wherein, further include dust conveyer 20, exported respectively with the dust of the first deduster 15 and the second deduster 16 Mouth connection.Also, the first deduster 15 and the second deduster 16 are sinter-plate precipitator.
Working principle:
Efficient dry method desulfuration system is made of station 4 of unpacking, grinding machine 6, intermediate bin 8, conveying device, injection apparatus etc..Desulfurization Agent is packed by 4 input ports of station of unpacking, and grinds through discharger, 6 system of grinding machine, efficient desulfurizing agent (sodium bicarbonate) is machined to 20- 25 μm, enter intermediate bin 8 through selection by winnowing, then conveying uniform is drawn by blower and is injected in pipeline, efficient desulfurizing agent quilt in pipeline Hot activation, specific surface area increase rapidly, and come into full contact with acidic flue gas, and physics, chemical reaction, the SO in flue gas occurs2Etc. containing Sulfur material is absorbed purification.
The main chemical reactions of completion are as follows:
2NaHCO3+SO2+1/2O2→Na2SO4+2CO2+H2O
2NaHCO3+SO3→Na2SO4+2CO2+H2O
With other acidic materials (such as SO3Deng) reaction:
NaHCO3+HCL→NaCL+CO2+H2O
NaHCO3+HF→NaF+CO2+H2O
High-efficiency dust removal system: the flue gas of dust-laden and Desulphurization after desulfurization process is pulled by pipeline through blower wind-force more Inside grade dust pelletizing system, dust is delayed at outside filtrate, and clean gas is discharged through filtrate by exhaust outlet.When filtrate outer surface The dust of attaching constantly increases when reaching certain thickness, and equipment resistance is caused to increase.When equipment resistance reaches the Resistance Value of restriction When (being usually set to 1200Pa or so), minute-pressure difference controller sends deashing signal to control system.Control system receives deashing After signal, issues instruction control and carry out jetting deashing operation.Soot cleaning system makes the dust for being attached at filtrate outer surface disengaging sink Into lower part box ash cellar, it is discharged via unloading valve, ash conveying device.
Because spatial position, weight of equipment and ship generate the limitation at the elevation angle, inclination effect on ship, the present invention is using advanced Macromolecule resin material be filter element form deduster, i.e. sinter-plate precipitator has than conventional cloth bag formula deduster Higher efficiency of dust collection；The elevation angle of the conventional cloth bag formula deduster because generating in ship's navigation, cloth bag caused by inclination angle can effectively be avoided Friction filtrate broken invalid is swung, dust pelletizing system maintenance time and maintenance cost and smaller occupied space is reduced, is traditional cloth The 1/3~1/4 of sack cleaner occupied space, and used using seperated parallel combination, mitigate hull weight bearing.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of ship desulfurization dust-removal system, it is characterised in that: including being sequentially connected flue, dedusting fan and chimney, institute The upstream position for stating flue is connected with desulfurizing agent supply unit, and the downstream position of the flue is equipped with dust removing units； The desulfurization supply unit includes sequentially connected station of unpacking, grinding machine, intermediate bin and powder conveyer, the powder conveyer Output channel is connect with the flue, and the end of the output channel is equipped with injection apparatus.
2. a kind of ship desulfurization dust-removal system according to claim 1, it is characterised in that: the bottom connection the of standing of unpacking One discharger.
3. a kind of ship desulfurization dust-removal system according to claim 1, it is characterised in that: the top of the grinding machine, which is equipped with, to be divided Grade device.
4. a kind of ship desulfurization dust-removal system according to claim 1, it is characterised in that: intermediate bin top connection the One blower.
5. a kind of ship desulfurization dust-removal system according to claim 1, it is characterised in that: the bottom of the intermediate bin is equipped with Second discharger, the second discharger top are equipped with gate valve.
6. a kind of ship desulfurization dust-removal system according to claim 1, it is characterised in that: the powder conveyer is connected with Second blower.
7. a kind of ship desulfurization dust-removal system according to claim 1, it is characterised in that: the dust removing units include first Deduster and the second deduster, the flue are equipped with the first branch and second branch being connected in parallel, the first branch It is located at the desulfurizing agent supply unit downstream position with the second branch, first deduster is located at the first branch On, second deduster is located in the second branch.
8. a kind of ship desulfurization dust-removal system according to claim 7, it is characterised in that: be located at institute in the first branch The first deduster upstream position is stated equipped with mixer selector valve.
9. a kind of ship desulfurization dust-removal system according to claim 7, it is characterised in that: it further include dust conveyer, It is connect respectively with the dust delivery outlet of first deduster and the second deduster.
10. a kind of ship desulfurization dust-removal system according to claim 7, it is characterised in that: first deduster and institute Stating the second deduster is sinter-plate precipitator.
CN201910589543.4A 2019-06-29 2019-06-29 A kind of ship desulfurization dust-removal system Pending CN110302656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910589543.4A CN110302656A (en) 2019-06-29 2019-06-29 A kind of ship desulfurization dust-removal system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910589543.4A CN110302656A (en) 2019-06-29 2019-06-29 A kind of ship desulfurization dust-removal system

Publications (1)

Publication Number Publication Date
CN110302656A true CN110302656A (en) 2019-10-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910589543.4A Pending CN110302656A (en) 2019-06-29 2019-06-29 A kind of ship desulfurization dust-removal system

Country Status (1)

Country Link
CN (1) CN110302656A (en)

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