CN204107333U - A kind of accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide - Google Patents
A kind of accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide Download PDFInfo
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- CN204107333U CN204107333U CN201420498870.1U CN201420498870U CN204107333U CN 204107333 U CN204107333 U CN 204107333U CN 201420498870 U CN201420498870 U CN 201420498870U CN 204107333 U CN204107333 U CN 204107333U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to a kind of accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide, for the treatment of the absorbing liquid of high-concentration fume purifier; High-concentration fume purifier is the device that liquid phase catalytic oxidation removes high concentration nitrogen oxide and sulfur dioxide; The accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide comprises contaminant filter, nanofiltration device, ammoniacal liquor regulating tank, salt flow container, crystallizing evaporator, hydrocyclone; The beneficial effects of the utility model are: the process route adopting filtration → nanofiltration separation → storage → evaporative crystallization → hydraulic cyclone → drying → sulphur ammonium nitrate chemical fertilizer finished product, especially Nanofiltration-membrane technique is adopted, absorbing liquid is separated in nanofiltration device, concentrate out the liquid-phase catalyst of 95% ~ 99%, and the ammonium sulfate of > 90%, ammonium nitrate solution are dialysed, thus ensure that the service life of liquid-phase catalyst, and achieve the recycling of byproduct sulphur ammonium nitrate.
Description
Technical field
The utility model belongs to smoke eliminator, particularly relates to a kind of accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide.
Background technology
Along with the development of Chinese smoke gas treatment technology, to large concentration SO
2, NOx improvement increasingly stringent, the removal efficiency of simple administering method as spray column is lower, especially SO
2in absorbing liquid, absorption SO is made with the sulphite that alkaline process generates
2ability decline, thus need the method carrying out rapidly being oxidized to improve desulfuration efficiency, the recycling of same NOx makes the oxidation-absorption process of NOx day by day be paid attention to, improve outside the method for NOx oxidizability in flue gas at solid catalyst, the use of liquid-phase catalyst liquid phase catalytic oxidation is had breakthrough development, especially with the combination of ammonia process, the NOx of complex catalysis oxidation can transfer ammonium nitrate to rapidly, mercury simultaneously in adsorbable liquid oxidation removal, under suitable conditions, as suitable pH value, the CO in partial fume can be removed
2, be a kind of more advanced purification techniques.
But due to the technique of the evaporative crystallization-stiff of ammonium salt in using, the use of liquid-phase catalyst is consumed and becomes large, thus cause the rising of use cost.Thus a kind of to support the use with liquid-phase catalyst and effective salt-liquid isolation technics combines is needed.
Summary of the invention
The purpose of this utility model proposes a kind of technical scheme removing the accessory substance treating apparatus of high concentration nitrogen oxide and sulfur dioxide, reduces the consumption of catalyst, and the byproduct realizing Purification by Liquid Phase Catalytic Oxidation flue gas is recycled.
To achieve these goals, the technical solution of the utility model is: a kind of accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide, for the treatment of the absorbing liquid of high-concentration fume purifier; Described high-concentration fume purifier is the device that liquid phase catalytic oxidation removes high concentration nitrogen oxide and sulfur dioxide; The described accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide comprises contaminant filter, nanofiltration device, ammoniacal liquor regulating tank, salt flow container, crystallizing evaporator, hydrocyclone; Described high-concentration fume purifier is provided with the absorption liquid pool that absorbing liquid is housed, and described contaminant filter is provided with fluid inlet, liquid-phase outlet and impurities outlet, and the fluid inlet of contaminant filter connects the absorption liquid pool of high-concentration fume purifier by pipeline; Described nanofiltration device is the filter being provided with NF membrane, and nanofiltration device is provided with liquid phase entrance, the outlet of catalyst liquid and the outlet of ammonium salt liquid, and the liquid phase entrance of nanofiltration device connects the liquid-phase outlet of contaminant filter by pipeline; Described ammoniacal liquor regulating tank is provided with catalyst liquid entrance, ammonia inlet and liquid-phase outlet, the catalyst liquid entrance of ammoniacal liquor regulating tank connects the catalyst liquid outlet of nanofiltration device by pipeline, the liquid-phase outlet of ammoniacal liquor regulating tank connects the absorption liquid pool of high-concentration fume purifier by pipeline; Described salt flow container is provided with saline solution entrance and saline solution outlet, and the saline solution entrance of salt flow container connects the ammonium salt liquid outlet of nanofiltration device by pipeline; Described crystallizing evaporator is provided with saline solution entrance, the outlet of brilliant saline solution and distilled water outlet, and the saline solution entrance of crystallizing evaporator connects the saline solution outlet of salt flow container by pipeline; Described hydrocyclone is provided with brilliant saline solution entrance, the outlet of brilliant salt and liquid-phase outlet, and the brilliant saline solution entrance of hydrocyclone connects the brilliant saline solution outlet of crystallizing evaporator by pipeline, and hydrocyclone liquid-phase outlet connects a liquor box; Be provided with drier in the below of hydrocyclone, described drier is provided with brilliant salt entrance and liquid-phase outlet, and the liquid-phase outlet of drier connects described liquor box by pipeline.
Further, described contaminant filter is centrifugal filter.
Further, in described ammoniacal liquor regulating tank, agitator is provided with.
The beneficial effects of the utility model are: the process route adopting filtration → nanofiltration separation → storage → evaporative crystallization → hydraulic cyclone → drying → sulphur ammonium nitrate chemical fertilizer finished product, especially Nanofiltration-membrane technique is adopted, absorbing liquid is separated in nanofiltration device, concentrate out the liquid-phase catalyst of 95% ~ 99%, and the ammonium sulfate of > 90%, ammonium nitrate solution are dialysed, thus ensure that the service life of liquid-phase catalyst, and achieve the recycling of byproduct sulphur ammonium nitrate.
Below in conjunction with drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the utility model device schematic diagram.
Detailed description of the invention
NF membrane (Nanofiltration) is a kind of utilized thin film composite membranes, it can make the NaCl of 90% dialyse, and the sucrose of 99% is dammed, this film, neither reverse osmosis membrane (can not dam inorganic salts), does not belong to milipore filter (low-molecular-weight organic matter of can not dialysing) yet.The molecule being greater than 95% due to this film rejection in process of osmosis is 1nm, and the molecular cut off of NF membrane, from 200 ~ 1000, can make the NaCl of more than 90% dialyse, techniques such as being applicable to desalination, taking off monose, be concentrated.Its membrane structure overwhelming majority is multilayer open structure, compared with counter-infiltration, even if also there is higher permeation flux under high salinity and lower pressure, thus inorganic salts are dialysed by NF membrane, make the osmotic pressure of nanofiltration low more than counter-infiltration, like this, under the prerequisite ensureing certain membrane flux, impressed pressure needed for nanofiltration process is more much lower than counter-infiltration, and under same equal pressure, the membrane flux of nanofiltration is then much bigger than counter-infiltration, in addition, nanofiltration can make course synchronization that is concentrated and desalination carry out, therefore, counter-infiltration is substituted with nanofiltration, concentration process can carry out effectively rapidly, and reach larger cycles of concentration.Owing to possessing These characteristics, make NF membrane can carry out desalination simultaneously and concentrate and have quickish processing speed, the concentrated feature with normal temperature, nothing destruction, low cost, high yield is carried out to macromolecule organic.
In the device that the characteristic of NF membrane makes it be applied in adopt liquid phase catalytic oxidation to remove containing high concentration nitrogen oxide and sulfur dioxide flue gas, for filtering the liquid-phase catalyst in absorbing liquid, save the consumption of liquid-phase catalyst, realize the recovery to gas cleaning byproduct simultaneously.
To achieve these goals, the utility model have employed following technical scheme.
As Fig. 1, a kind of accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide, for the treatment of the absorbing liquid of high-concentration fume purifier 10; Described high-concentration fume purifier is the device that liquid phase catalytic oxidation removes high concentration nitrogen oxide and sulfur dioxide; The described accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide comprises contaminant filter 20, nanofiltration device 30, ammoniacal liquor regulating tank 40, salt flow container 50, crystallizing evaporator 60, hydrocyclone 70; Described high-concentration fume purifier is provided with the absorption liquid pool 11 that absorbing liquid is housed, described contaminant filter is provided with fluid inlet 21, liquid-phase outlet 22 and impurities outlet 23, and the fluid inlet of contaminant filter connects the absorption liquid pool of high-concentration fume purifier by pipeline; Described nanofiltration device is the filter being provided with NF membrane, and nanofiltration device is provided with liquid phase entrance 31, catalyst liquid outlet 32 and ammonium salt liquid outlet 33, and the liquid phase entrance of nanofiltration device connects the liquid-phase outlet of contaminant filter by pipeline; Described ammoniacal liquor regulating tank is provided with catalyst liquid entrance 41, ammonia inlet 42 and liquid-phase outlet 43, the catalyst liquid entrance of ammoniacal liquor regulating tank connects the catalyst liquid outlet of nanofiltration device by pipeline, the liquid-phase outlet of ammoniacal liquor regulating tank connects the absorption liquid pool of high-concentration fume purifier by pipeline; Described salt flow container is provided with saline solution entrance 51 and saline solution outlet 52, and the saline solution entrance of salt flow container connects the ammonium salt liquid outlet of nanofiltration device by pipeline; Described crystallizing evaporator is provided with saline solution entrance 61, brilliant saline solution outlet 62 and distilled water outlet 63, and the saline solution entrance of crystallizing evaporator connects the saline solution outlet of salt flow container by pipeline; Described hydrocyclone is provided with brilliant saline solution entrance 71, brilliant salt outlet 72 and liquid-phase outlet 73, and the brilliant saline solution entrance of hydrocyclone connects the brilliant saline solution outlet of crystallizing evaporator by pipeline, and hydrocyclone liquid-phase outlet connects a liquor box 91; Be provided with drier 80 in the below of hydrocyclone, described drier is provided with brilliant salt entrance 81 and liquid-phase outlet 82, and the liquid-phase outlet of drier connects described liquor box by pipeline.
Embodiment one:
As Fig. 1, a kind of accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide, for the treatment of the absorbing liquid of high-concentration fume purifier 10.
High-concentration fume purifier is the device that liquid phase catalytic oxidation removes high concentration nitrogen oxide and sulfur dioxide, high-concentration fume purifier in the present embodiment is the integrated fume purifying column part of dotted line (in the figure), comprises and absorbs liquid pool 11, the catalyst case 12 that low-temperature oxidation catalyst is housed, Heat Room 13; First shower 14, bubbling pipe 15, locking device 16, second shower 17.Absorbing in liquid pool the absorbing liquid be equipped with containing liquid-phase catalysis, containing ammoniacal liquor in described absorbing liquid, described liquid-phase catalyst is that namely macromolecule organic catalyst has complexing nitrogen oxide, heavy metal and be dissolved in buck and with can the macromolecule organic of catalytic oxidation of nitric oxide metal ion.
Locking device is a kind of V-type cover-sieve tray locking device, comprises locking device inner core and locking device guard, and the gas upwards flowed enters locking device inner core, flowed out by locking device guard; Coordinate ejecting liquid, purified treatment is carried out to flue gas.
The accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide comprises contaminant filter 20, nanofiltration device 30, ammoniacal liquor regulating tank 40, salt flow container 50, crystallizing evaporator 60, hydrocyclone 70.
Contaminant filter is centrifugal filter, and contaminant filter is provided with fluid inlet 21, liquid-phase outlet 22 and impurities outlet 23, and the fluid inlet of contaminant filter connects the absorption liquid pool of high-concentration fume purifier by pipeline.
Be provided with NF membrane in nanofiltration device, by press filtration, micro-filtration, the multistage composition such as nanofiltration, nanofiltration device is provided with liquid phase entrance 31, catalyst liquid outlet 32 and ammonium salt liquid outlet 33, and the liquid phase entrance of nanofiltration device connects the liquid-phase outlet of contaminant filter by pipeline.
The capacity of ammoniacal liquor regulating tank is 3 cubic metres, ammoniacal liquor regulating tank is provided with catalyst liquid entrance 41, ammonia inlet 42 and liquid-phase outlet 43, the catalyst liquid entrance of ammoniacal liquor regulating tank connects the catalyst liquid outlet of nanofiltration device by pipeline, the liquid-phase outlet of ammoniacal liquor regulating tank connects the absorption liquid pool of high-concentration fume purifier by pipeline; Ammonia inlet is for adding supplementary ammoniacal liquor; In order to make the uniform composition in ammoniacal liquor tank, in ammoniacal liquor regulating tank, be provided with agitator 44.
The capacity of salt flow container is 30 cubic metres, and salt flow container is provided with saline solution entrance 51 and saline solution outlet 52, and the saline solution entrance of salt flow container connects the ammonium salt liquid outlet of nanofiltration device by pipeline.
Crystallizing evaporator is DTB type multiple-effect crystallizing evaporator, and crystallizing evaporator is provided with saline solution entrance 61, brilliant saline solution outlet 62 and distilled water outlet 63, and the saline solution entrance of crystallizing evaporator connects the saline solution outlet of salt flow container by pipeline.
Hydrocyclone is FX66 hydrocyclone, hydrocyclone is provided with brilliant saline solution entrance 71, brilliant salt outlet 72 and liquid-phase outlet 73, the brilliant saline solution entrance of hydrocyclone connects the brilliant saline solution outlet of crystallizing evaporator by pipeline, and hydrocyclone liquid-phase outlet connects a liquor box 91.
Be provided with drier 80 in the below of hydrocyclone, drier adopts the double-body vibration fluidized bed drying/cooler of HSUP series, and drier is provided with brilliant salt entrance 81 and liquid-phase outlet 82, and the liquid-phase outlet of drier connects described liquor box by pipeline.
Flue gas enters integrated fume purifying column, in catalyst case after oxidizability promotes by low-temperature oxidation catalyst LSCO system, spraying bubble absorption section and reacting with the ammonia absorbing liquid of liquid-phase oxidation catalyst, form the ammonium salt ((NH with liquid-phase catalyst
4)
2sO
4, NH
4nO
3) solution.With the ammonium salt ((NH of liquid-phase catalyst
4)
2sO
4, NH
4nO
3) solution filter in contaminant filter remove impurity, enter in nanofiltration device, macromolecule organic catalyst and ammonium salt liquid nanofiltration separation, in solution, the liquid-phase catalyst of more than 95% is got back in ammoniacal liquor regulating tank, and the absorption liquid pool of integrated fume purifying column is sent back to from ammoniacal liquor regulating tank, ammonium salt liquid then flows in salt flow container, corresponding moisture is evaporated through crystallizing evaporator, and then carry out salt-water separation through hydrocyclone, crystal salt becomes the outward transport of finished product chemical fertilizer sulphur ammonium nitrate after drier, and the water separated enters in liquor box, reuse in integrated fume purifying column can be sent into, or send in crystallizing evaporator again and repeat crystallization process.
Claims (3)
1. remove an accessory substance treating apparatus for high concentration nitrogen oxide and sulfur dioxide, for the treatment of the absorbing liquid of high-concentration fume purifier; Described high-concentration fume purifier is the device that liquid phase catalytic oxidation removes high concentration nitrogen oxide and sulfur dioxide; It is characterized in that, described in remove high concentration nitrogen oxide and sulfur dioxide accessory substance treating apparatus comprise contaminant filter, nanofiltration device, ammoniacal liquor regulating tank, salt flow container, crystallizing evaporator, hydrocyclone; Described high-concentration fume purifier is provided with the absorption liquid pool that absorbing liquid is housed, and described contaminant filter is provided with fluid inlet, liquid-phase outlet and impurities outlet, and the fluid inlet of contaminant filter connects the absorption liquid pool of high-concentration fume purifier by pipeline; Described nanofiltration device is the filter being provided with NF membrane, and nanofiltration device is provided with liquid phase entrance, the outlet of catalyst liquid and the outlet of ammonium salt liquid, and the liquid phase entrance of nanofiltration device connects the liquid-phase outlet of contaminant filter by pipeline; Described ammoniacal liquor regulating tank is provided with catalyst liquid entrance, ammonia inlet and liquid-phase outlet, the catalyst liquid entrance of ammoniacal liquor regulating tank connects the catalyst liquid outlet of nanofiltration device by pipeline, the liquid-phase outlet of ammoniacal liquor regulating tank connects the absorption liquid pool of high-concentration fume purifier by pipeline; Described salt flow container is provided with saline solution entrance and saline solution outlet, and the saline solution entrance of salt flow container connects the ammonium salt liquid outlet of nanofiltration device by pipeline; Described crystallizing evaporator is provided with saline solution entrance, the outlet of brilliant saline solution and distilled water outlet, and the saline solution entrance of crystallizing evaporator connects the saline solution outlet of salt flow container by pipeline; Described hydrocyclone is provided with brilliant saline solution entrance, the outlet of brilliant salt and liquid-phase outlet, and the brilliant saline solution entrance of hydrocyclone connects the brilliant saline solution outlet of crystallizing evaporator by pipeline, and hydrocyclone liquid-phase outlet connects a liquor box; Be provided with drier in the below of hydrocyclone, described drier is provided with brilliant salt entrance and liquid-phase outlet, and the liquid-phase outlet of drier connects described liquor box by pipeline.
2. a kind of accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide according to claim 1, it is characterized in that, described contaminant filter is centrifugal filter.
3. a kind of accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide according to claim 1, is characterized in that, in described ammoniacal liquor regulating tank, be provided with agitator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498870.1U CN204107333U (en) | 2014-01-02 | 2014-09-02 | A kind of accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420000382 | 2014-01-02 | ||
| CN201420000382.3 | 2014-01-02 | ||
| CN201420498870.1U CN204107333U (en) | 2014-01-02 | 2014-09-02 | A kind of accessory substance treating apparatus removing high concentration nitrogen oxide and sulfur dioxide |
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| CN204107333U true CN204107333U (en) | 2015-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692573A (en) * | 2015-04-14 | 2015-06-10 | 江西晨光新材料有限公司 | Wastewater treatment method in process of synthesizing bis-[gamma-triethoxysilylpropyl]-tetrasulfide through aqueous phase method |
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2014
- 2014-09-02 CN CN201420498870.1U patent/CN204107333U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692573A (en) * | 2015-04-14 | 2015-06-10 | 江西晨光新材料有限公司 | Wastewater treatment method in process of synthesizing bis-[gamma-triethoxysilylpropyl]-tetrasulfide through aqueous phase method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20200902 |