CN103316577A - Flue gas desulphurization process by using salt mud and purified brine - Google Patents
Flue gas desulphurization process by using salt mud and purified brine Download PDFInfo
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- CN103316577A CN103316577A CN2013101998561A CN201310199856A CN103316577A CN 103316577 A CN103316577 A CN 103316577A CN 2013101998561 A CN2013101998561 A CN 2013101998561A CN 201310199856 A CN201310199856 A CN 201310199856A CN 103316577 A CN103316577 A CN 103316577A
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Abstract
The invention relates to a flue gas desulphurization process by using salt mud and purified brine. The process comprises steps of dehydrating salt mud produced in a brine purification process, sending the dehydrated salt mud into a circulating fluidized bed boiler, mixing the dehydrated salt mud with fire coal, combusting the mixture and dedusting an flue gas exhausted from combustion of the mixture; sending the dedusted flue gas into a desulfurization tower through a flue gas inlet of a flue-gas desulphurization system that uses salt mud and purified brine, and at the same time, feeding purified brine to a purified-brine storage area at the bottom of the desulfurization tower through a purified-brine inlet; pumping the purified brine into an atomizer by using a purified-brine pumping system; atomizing the purified brine into liquid drops by using the atomizer, and contacting and reacting the liquid drops with the upward moving flue gas; dehydrating the flue gas by using a demister, and then discharging the flue gas from a flue gas outlet; and discharging the purified brine from a purified-brine outlet. The flue gas desulphurization process is advantageous in that the desulphurization efficiency is high and can reach 94%; characteristics of raw materials and media in a production process are fully utilized; production is environmentally friendly; and problems of secondary pollution and by-product processing are completely avoided.
Description
Technical field
The present invention relates to desulfuration field, be specifically related to a kind of salt slurry-purified brine flue gas desulfurization technique.
Background technology
On the one hand, for sending engineering in the gas east, river that cooperates China building at present, my company needs the water filling dissolved salt, adopt halogen builds the chamber, build salt hole air reserved storeroom, and meeting produces a large amount of bittern in the construction of storage process, and the purified brine system of bittern being carried out after the processing such as purified treatment such as caustic soda-Method of Soda is alkalescence more, and contains more alkaline matter such as Na
2CO
3, NaOH etc.Meanwhile, also can generate the precipitation that is insoluble in water such as calcium carbonate, magnesium hydroxide in the bittern purifying process, the paste solid waste that produces main component and be calcium carbonate is salt slurry.Along with the needs that the continuous enhancing of CSR and green low-carbon are produced, environmental protection, low consumption, digest gas storage efficiently and build the vital task that a large amount of bittern of producing in the process of chamber and salt slurry become enterprise.And at present, most enterprises mainly is that heap is abandoned and re-injection to the disposal of salt slurry, produces device year 2500 tons of the by-product salt slurries of 300,000 tons of sal prunellas per year such as a cover.And a large amount of salt slurry like this, if need to increase production cost under the reinjection well; Abandon as pile every year, need again larger place, to environment.
On the other hand, China SO
2The discharge capacity increasing year by year, and wherein 90% from coal consumption, the most urgent task of control atmosphere pollution is exactly coal-fired SO
2Control.As accessory substance salt slurry and purified brine can not only can being reached the purpose of administering discarded object in conjunction with being used for flue gas desulfurization technique, can also give up that it is useless to control, realize the purpose to flue gas desulfurization.
Summary of the invention
Technical problem to be solved by this invention provides a kind of salt slurry-purified brine flue gas desulfurization technique.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
Salt slurry-purified brine flue gas desulfurization technique, it is characterized in that: it may further comprise the steps: it may further comprise the steps:
(1) mixes burning with being sent to after the dehydration of the salt slurry that produces in the bittern purifying process in the CFBB to mix with fire coal, again to mixing the discharge flue gas ash removal after the burning;
(2) purified brine sent into carried out desulfurization in the purified brine flue gas desulphurization system:
Described purified brine flue gas desulphurization system comprises desulfurizing tower, the purified brine pumping system, one side at described desulfurizing tower middle part is provided with gas approach, sending into pipeline with flue gas links to each other, be used for passing into flue gas after the dedusting, the top of described desulfurizing tower is provided with flue gas discharge opening, link to each other with the smoke discharge tube road, be used for discharging flue gas after desulfurization, the top of gas approach is provided with the atomizer for the atomizing purified brine in the described desulfurizing tower, the top of described desulfurizing tower, the top of atomizer is provided with demister, be used for removing flue gas moisture, the bottom of described desulfurizing tower is that purified brine stores the district, and described purified brine stores district's one side and is provided with the purified brine import, entering pipeline with bittern links to each other, be used for sending into purified brine, described purified brine stores district's opposite side and is provided with the purified brine outlet, is used for discharging purified brine; Described purified brine pumping system comprises one or more groups pumping unit, described every group of pumping unit comprises the bittern circulating pump, the bittern intake line that links to each other with bittern circulating pump suction side and the bittern discharge line that links to each other with bittern circulating pump outlet side, and the bittern intake line in each pumping unit stores the district with purified brine and links to each other, and the bittern discharge line links to each other with atomizer;
Described purified brine flue gas desulfurization technique is: the described dedusting flue gas of step (1) is sent in the desulfurizing tower through the gas approach of purified brine flue gas desulphurization system, meanwhile, store the district to the purified brine of desulfurizing tower bottom and send into purified brine through the purified brine import, and by the purified brine pumping system purified brine is delivered in the atomizer, be to carry out desulfurization with mobile from bottom to top except this flue gas haptoreaction behind the drop by atomizer with purified brine atomizing again, rear desulfurization fume is discharged from flue gas discharge opening after the demister dehydration, and purified brine is discharged through the purified brine outlet.
Press such scheme, the salt slurry in the described step (1) is water content≤10wt% after dehydration, NaCl content≤8wt%, salt slurry granularity≤2mm.
Press such scheme, it forms by mass percentage that content is: CaCO after the dehydration of salt slurry in the described step (1)
370-80%, Mg (OH)
25-10%, NaCl 5-8%, H
2O 8-10%.
Press such scheme, the salt slurry in described rapid (1) is to be ejected in the CFBB by the blast injection device; Fire box temperature in the described CFBB is 850-950 ℃; Described calcium sulfur ratio is 1.5-2:1.
Press such scheme, the purified brine in the described step (2) is that sodium sulphate type bittern is adopted the pH value that produces after caustic soda-Method of Soda purified treatment is the purified brine of 10-11.
Press such scheme, described purified brine flue gas desulphurization system also comprises control system and the alkali lye replenishment system that links to each other with desulfurizing tower, and described smoke discharge tube road is provided with flue gas on-line monitoring equipment, is used for the SO that flue gas is discharged in monitoring
2Content, in the described purified brine import department and purified brine outlet place is equipped with online pH monitoring meter, described control system is counted with the online pH monitoring of flue gas on-line monitoring equipment, purified brine import department, the online pH monitoring at purified brine outlet place is taken into account the alkali lye replenishment system and linked to each other, and is used for the SO that flue gas is discharged in monitoring
2Content, the purified brine pH value that enters and the purified brine pH value of discharging, and be lower than at 8 o'clock discharging purified brine pH value, startup alkali lye replenishment system is assisted desulfurization to send into alkali lye in desulfurizing tower; At the SO that discharges flue gas
2When content is higher than preset value, start the alkali lye replenishment system in desulfurizing tower, to send into alkali lye and assist desulfurization and when the purified brine pH value that enters is lower than preset value, start the alkali lye replenishment system and assist desulfurization in desulfurizing tower, to send into alkali lye, and will discharge the SO in the flue gas
2Content is controlled at setting range and the pH of the purified brine of discharging is controlled to be in the scope of 8-8.5;
Described purified brine flue gas desulfurization technique is included in discharge purified brine pH value and is lower than at 8 o'clock, starts the alkali lye replenishment system and assists desulfurization to send into alkali lye in desulfurizing tower; At the SO that discharges flue gas
2When content is higher than preset value, start the alkali lye replenishment system in desulfurizing tower, to send into alkali lye and assist desulfurization and when the purified brine pH value that enters is lower than preset value, start the alkali lye replenishment system and assist desulfurization in desulfurizing tower, to send into alkali lye, and will discharge the SO in the flue gas
2Content is controlled at setting range and the pH of the purified brine of discharging is controlled to be in the scope of 8-8.5; Described alkali lye is NaOH.
Press such scheme, alkali lye replenishment system in the described purified brine flue gas desulphurization system comprises alkali tank and the alkali lye pumping system that links to each other with the alkali tank, described alkali lye pumping system comprises the pumping unit that one or more groups is arranged side by side, every group of pumping unit comprise add alkali pump, with add alkali lye intake line that the alkali pump suction side links to each other with the alkali lye discharge line that adds the alkali pump outlet side and link to each other, the alkali lye intake line of described each pumping unit links to each other with the alkali tank, described alkali lye discharge line links to each other with desulfurizing tower, so that alkali lye is sent in the desulfurizing tower; Be equipped with pressure sensor on the alkali lye discharge line of described every group of pumping unit, and link to each other with control system, to judge the ruuning situation that adds alkali pump in this pumping unit by monitoring its pressure value, and the alkali pump that adds in each pumping unit also links to each other with control system, to control as required the start and stop that respectively add alkali pump.
Press such scheme, the interval is laid with the multilayer atomizer in the desulfurizing tower of described purified brine flue gas desulphurization system, described atomizer is comprised of a plurality of hollow cone spiral nozzles, the number of plies of the number of pumping unit group and atomizer is corresponding in the described purified brine pumping system, and the bittern discharge line in each pumping unit is corresponding continuous one by one with atomizer, is pumped in each atomizer with the purified brine that purified brine is stored in the district; Be equipped with pressure sensor on the bittern discharge line of described every group of pumping unit, and link to each other with control system, to judge the ruuning situation of bittern circulating pump in each pumping unit by monitoring its pressure value, and the bittern circulating pump in each pumping unit also links to each other with control system, to control as required the start and stop of each bittern circulating pump.
Press such scheme, the purified brine spray flux of atomizer spray is 500-777m in the described step (2)
3/ h; Liquid-gas ratio is 2.6-4:1.
Press such scheme, described purified brine flue gas desulphurization system also comprises the pumping unit that one or more groups is arranged side by side, every group of pumping unit comprises the bittern excavationg pump, the bittern intake line that links to each other with bittern excavationg pump suction side and the bittern discharge line that links to each other with bittern circulating pump outlet side, described bittern intake line links to each other with the purified brine outlet, described bittern discharge line is provided with a branch road that links to each other with desulfurizing tower, the branch road that links to each other with desulfurizing tower on the described bittern discharge line is provided with valve, whenever necessary purified brine is being back in the desulfurizing tower, be equipped with pressure sensor on the pipeline bittern discharge line of described every group of pumping unit, and link to each other with control system, to judge the ruuning situation of bittern excavationg pump in each pumping unit by monitoring its pressure value, and the bittern excavationg pump in each pumping unit also links to each other with control system, to control as required the start and stop of each bittern excavationg pump;
The purified brine of desulfurizing tower stores and is provided with liquid level sensor in the district in the described purified brine flue gas desulphurization system, the bittern discharge line that described purified brine is discharged system is provided with motor-driven valve, described control system links to each other with the motor-driven valve that liquid level sensor and purified brine are discharged on system's bittern discharge line, be used for the aperture by the control motor-driven valve, regulate the discharge rate of purified brine, the purified brine that purified brine is stored in the district is controlled at the setting liquid level;
Described purified brine flue gas desulfurization technique comprises that enabling purified brine discharges system, purified brine after heating up with the smoke reaction heat exchange is delivered to the sal prunella device produce salt and saltcake, and whenever necessary, open with branch road that desulfurizing tower links to each other on valve, purified brine is back in the desulfurizing tower; And when the liquid level sensor desulfurization in monitors purified brine and stores storing bittern purifying and exceed the setting liquid level in distinguishing, can be by the aperture of the motor-driven valve on the bittern discharge line in the control purified brine discharge system, regulate the discharge rate of purified brine, the liquid level of depositing of purified brine being stored purified brine in the district is controlled at the setting liquid level.
Press such scheme, described purified brine flue gas desulphurization system also comprises the first rinse-system, and it links to each other with bittern intake line in the purified brine pumping system, is used for the bittern intake line of purified brine pumping system is cleaned; Described purified brine flue gas desulphurization system comprises the second rinse-system, and it links to each other with bittern intake line in the purified brine discharge system, is used for the bittern intake line of purified brine discharge system is cleaned;
The interval is laid with the multilayer demister in the described desulfurizing tower; Described purified brine flue gas desulphurization system also comprises backwashing system, described backwashing system comprises shower nozzle and one or more groups pumping unit arranged side by side that is located at demister above and below in the desulfurizing tower, every group of pumping unit comprises backwashing pump, the recoil lotion intake line that links to each other with the backwashing pump suction side and the recoil lotion discharge line that links to each other with the backwashing pump outlet side, described backwash discharge line links to each other with shower nozzle, so that demister is carried out up and down hydro-peening;
Described purified brine flue gas desulfurization technique comprises enables the first rinse-system and the second rinse-system whenever necessary, clean storing the bittern suction line that links to each other of district with purified brine in the bittern pumping system, and distinguish the bittern suction line that links to each other and clean storing with purified brine in the purified brine discharge system; And open whenever necessary backwashing system, demister is carried out hydro-peening.
Press such scheme, the flue gas of described purified brine flue gas desulphurization system is sent into pipeline and is provided with a bypass flue that is connected with the smoke discharge tube road, and this bypass flue is provided with the bypass flue motor-driven valve; Flue gas after described this bypass flue send on the pipeline and smoke discharge tube road before on be respectively equipped with gas approach motor-driven valve and exhanst gas outlet motor-driven valve; Described gas approach motor-driven valve, exhanst gas outlet motor-driven valve and bypass flue motor-driven valve link to each other with control system, be used for control system when normal operating condition, open gas approach motor-driven valve, exhanst gas outlet motor-driven valve, close the bypass flue motor-driven valve, flue gas is sent into desulfurizing tower carry out desulfurization; When the desulfurizing tower inspecting state, close gas approach motor-driven valve and exhanst gas outlet motor-driven valve, open the bypass flue motor-driven valve, so that system is overhauled;
Described flue gas is sent into pipeline and is provided with the flue-gas temperature monitoring sensor, and described flue-gas temperature monitoring sensor links to each other with control system, the temperature of flue gas after the dedusting of sending into monitoring;
The temperature of flue gas should be more than the flue gas dew point temperature after the dedusting of sending in the described purified brine flue gas desulfurization technique.
In the time of in salt slurry is ejected into CFBB, the principal component calcium carbonate in the salt slurry can high-temperature heating resolve into CaO namely:
CaCO
3→CaO+CO
2
The CaO meeting and the SO that generate thus
2Oxidation reaction reaches the purpose of desulfurization thus:
CaO+SO
2+1/2O
2=CaSO
4
CaO+SO
2= CaSO
3
In addition, wherein Mg(OH)
2Also can with SO
2Reaction, play certain desulfidation:
Mg(OH)
2+SO
2=MgSO
3+H
2O。
Then, after purified brine is sent into the purified brine flue gas desulphurization system and after the purified brine pumping system is delivered to atomizer, can form ring-shaped liquid film, contact with from bottom to top the dedusting flue gas of sending into through desulfurizing tower flue gas inlet port, and make NaOH and Na in the purified brine
2CO
3With the SO in the flue gas
2Fully react, thereby reach the purpose of desulfurization heat absorption, reduce through demister finally by the desulfurization fume after desulfurizing and purifying and the heat exchange cooling and moisturely discharge by flue gas discharge opening; Then discharge to use it for anything else by the purified brine outlet with the flue gas heat exchange intensification with the purified brine behind the smoke reaction, as deliver to sal prunella device essence halogen pond, for subsequent production is prepared.
Beneficial effect of the present invention:
(1) desulfuration efficiency of this salt slurry-purified brine flue gas desulfurization technique can reach 94%, and desulfuration efficiency is high;
(2) take full advantage of each stock media characteristic in the production process, environmental protection, green production have been accomplished, the problem of having avoided secondary pollution and accessory substance to process fully, particularly, it utilizes produces the discarded object salt slurry as desulfurizing agent, namely solved the environmental protection treatment of producing the discarded object salt slurry, the again treatment of wastes with processes of wastes against one another has reduced the discharging of sulfur dioxide; In addition, the reactant CaSO that produces after the salt slurry desulfurization
3, MgSO
3, being solid, can together take out with slag, do not produce extra Litter; Utilize mistake basicity NaOH and Na in the purified brine
2CO
3Carry out flue gas desulfurization, guaranteed SO in the discharged gas fume
2Qualified discharge has simultaneously reasonably absorbed fume afterheat, and make purified brine after heating up with flue gas heat exchange can directly send into the sal prunella device and be used for salt manufacturing and nitre processed, in addition, the Na that in purified brine and flue gas contact desulfurization process, produces
2SO
4, Na
2SO
3, also improved the output of thenardite, reached the purpose of reduction of discharging, energy-conservation, volume increase; Also reduced widely simultaneously the use of calcium carbonate and NaOH desulfurizing agent.Therefore this salt slurry-purified brine flue gas desulfurization technique takes full advantage of each stock media characteristic in the production process, has accomplished environmental protection, green production, the problem of having avoided secondary pollution and accessory substance to process fully.
Description of drawings
Fig. 1 is purified brine flue gas desulphurization system schematic diagram of the present invention, wherein: 1 desulfurizing tower, 2 gas approach, 3 flue gas discharge openings, 4 atomizers, 5 demisters, 6 purified brine imports, 7 purified brine outlets, 8 bittern circulating pumps, 9 bittern excavationg pumps, 10 first rinse-systems, 11 second rinse-systems, 12 alkali tanks, 13 add alkali pump, 14 bypass flues, 15 backwashing pumps.
Specific embodiment embodiment 1
Salt slurry-purified brine flue gas desulfurization technique, its step is as follows:
Sodium sulphate type bittern is adopted after the salt slurry dehydration that produces in caustic soda-Method of Soda decontamination process to be ejected in the CFBB to mix with fire coal by the blast injection device and mix burning, it forms by mass percentage that content is: CaCO after the described salt slurry dehydration
370-80%, Mg (OH)
25-10%, NaCl 5-8%, H
20 8-10%, granularity≤2mm; Fire box temperature in the described CFBB is 850-950 ℃; Calcium sulfur ratio is 1.5:1, then adopts sack cleaner to carry out dedusting to the discharge flue gas of mixing after the burning;
Purified brine sent into carries out desulfurization in the purified brine flue gas desulphurization system:
Described purified brine flue gas desulphurization system as shown in Figure 1, comprise desulfurizing tower, purified brine pumping system, one side at described desulfurizing tower 1 middle part is provided with gas approach 2, sending into pipeline with flue gas links to each other, be used for passing into flue gas after the dedusting, the top of described desulfurizing tower is provided with flue gas discharge opening 3, link to each other with the smoke discharge tube road, be used for discharging flue gas after desulfurization, described flue gas is sent into pipeline and is provided with a bypass flue 14 that is connected with the smoke discharge tube road, and this bypass flue is provided with the bypass flue motor-driven valve; Flue gas after this bypass flue send on the pipeline and smoke discharge tube road before on be respectively equipped with gas approach motor-driven valve and exhanst gas outlet motor-driven valve; The interval, top of gas approach is laid with three layers of atomizer 4 that is used for the atomizing purified brine in the described desulfurizing tower, described atomizer is comprised of a plurality of hollow cone spiral nozzles, the interval, top of the top of described desulfurizing tower, atomizer is laid with two-layer demister 5, be used for removing flue gas moisture, the bottom of described desulfurizing tower is that purified brine stores the district, described purified brine stores district's one side and is provided with purified brine import 6, entering pipeline with bittern links to each other, be used for sending into purified brine, described purified brine stores district's opposite side and is provided with purified brine outlet 7, is used for discharging purified brine; Described purified brine pumping system comprises three groups of pumping units, described every group of pumping unit comprises bittern circulating pump 8, the bittern intake line that links to each other with bittern circulating pump suction side and the bittern discharge line that links to each other with bittern circulating pump outlet side, and bittern intake line and the purified brine of described each pumping unit stores that the district links to each other, bittern discharge line and each atomizer corresponding linking to each other one by one;
Described purified brine flue gas desulphurization system also comprises control system and the alkali lye replenishment system that links to each other with desulfurizing tower, and described smoke discharge tube road is provided with flue gas on-line monitoring equipment, is used for the SO that flue gas is discharged in monitoring
2Content, in the described purified brine import department and purified brine outlet place is equipped with online pH monitoring meter, described control system is counted with the online pH monitoring of flue gas on-line monitoring equipment, purified brine import department, the online pH monitoring at purified brine outlet place is taken into account the alkali lye replenishment system and linked to each other, and is used for the SO that flue gas is discharged in monitoring
2Content, the purified brine pH value that enters and the purified brine pH value of discharging, and be lower than at 8 o'clock discharging purified brine pH value, startup alkali lye replenishment system is assisted desulfurization to send into alkali lye in desulfurizing tower; At the SO that discharges flue gas
2When content is higher than preset value, starting the alkali lye replenishment system assists desulfurization and is lower than at 10 o'clock in the purified brine pH value that enters to send into alkali lye in desulfurizing tower, start the alkali lye replenishment system and assist desulfurization in desulfurizing tower, to send into alkali lye, and will discharge the SO in the flue gas
2Content is controlled at setting range and the pH of the purified brine of discharging is controlled to be in the scope of 8-8.5;
Described alkali lye replenishment system comprises alkali tank and the alkali lye pumping system that links to each other with the alkali tank, described alkali lye pumping system comprises two groups of pumping units arranged side by side, every group of pumping unit comprises and adds alkali pump 13, with add alkali lye intake line that the alkali pump suction side links to each other with the alkali lye discharge line that adds the alkali pump outlet side and link to each other, alkali lye intake line in described each pumping unit links to each other with the alkali tank, the alkali lye discharge line links to each other with desulfurizing tower, so that alkali lye is sent in the desulfurizing tower, and the alkali lye discharge line of each pumping unit is provided with pressure sensor, and link to each other with control system, with by monitoring the ruuning situation that adds alkali pump in each pumping unit of the corresponding judgement of its pressure value, the alkali pump that adds in each pumping unit also links to each other with control system in addition, to control as required the start and stop that respectively add alkali pump;
Except this, described purified brine flue gas desulphurization system also can comprise purified brine discharge system, described purified brine discharge system comprises two groups of pumping units arranged side by side, every group of pumping unit comprises bittern excavationg pump 9, the bittern intake line that links to each other with bittern excavationg pump suction side and the bittern discharge line that links to each other with bittern circulating pump outlet side, the bittern intake line of described each pumping unit links to each other with the purified brine outlet, the bittern discharge line is provided with a branch road that links to each other with desulfurizing tower, the branch road that links to each other with desulfurizing tower on the bittern discharge line of described each pumping unit is provided with valve, whenever necessary purified brine is being back in the desulfurizing tower, and be equipped with pressure sensor on the bittern discharge line of pumping unit, and link to each other with control system, to judge the ruuning situation of bittern excavationg pump in this each pumping unit by monitoring its pressure value, bittern excavationg pump in every group of pumping unit also links to each other with control system in addition, to control as required the start and stop of each bittern excavationg pump;
The first rinse-system 10, it links to each other with bittern intake line in the purified brine pumping system, is used for the bittern intake line of purified brine pumping system is cleaned; And the second rinse-system 11, it links to each other with bittern intake line in the purified brine discharge system, cleans for the bittern intake line to purified brine discharge system;
Backwashing system, described backwashing system comprises shower nozzle and the two groups of pumping units arranged side by side that are located at demister above and below in the desulfurizing tower, every group of pumping unit comprises backwashing pump 15, the recoil lotion intake line that links to each other with the backwashing pump suction side and the recoil lotion discharge line that links to each other with the backwashing pump outlet side, backwash discharge line in described each pumping unit links to each other with shower nozzle, so that demister is carried out up and down hydro-peening;
Described gas approach motor-driven valve, exhanst gas outlet motor-driven valve and bypass flue motor-driven valve link to each other with control system, be used for control system when normal operating condition, open gas approach motor-driven valve, exhanst gas outlet motor-driven valve, close the bypass flue motor-driven valve, flue gas is sent into desulfurizing tower carry out desulfurization; When the desulfurizing tower inspecting state, close gas approach motor-driven valve and exhanst gas outlet motor-driven valve, open the bypass flue motor-driven valve, so that system is overhauled;
Described flue gas is sent into pipeline and is provided with the flue-gas temperature monitoring sensor, and described flue-gas temperature monitoring sensor links to each other with control system, the temperature of flue gas after the dedusting of sending into monitoring;
The purified brine of described desulfurizing tower stores and is provided with liquid level sensor in the district, the bittern discharge line that described purified brine is discharged system is provided with motor-driven valve, described control system links to each other with the motor-driven valve that liquid level sensor and purified brine are discharged on system's bittern discharge line, be used for the aperture by the regulating electric valve, regulate the discharge rate of purified brine, the purified brine that purified brine is stored in the district is controlled at the setting liquid level;
Described purified brine flue gas desulfurization technique is: the described dedusting flue gas more than the flue gas dew point temperature of step (1) is sent in the desulfurizing tower through the gas approach of purified brine flue gas desulphurization system, meanwhile, store the district to the purified brine of desulfurizing tower bottom and send into purified brine through the purified brine import, and by the purified brine pumping system purified brine is delivered to respectively in three layers of atomizer, be to carry out desulfurization with mobile from bottom to top flue gas haptoreaction behind the drop by each atomizer with purified brine atomizing again, described purified brine is that sodium sulphate type bittern is adopted the pH value that produces after caustic soda-Method of Soda purified treatment is the purified brine of 10-11; The spray flux of every layer of atomizer is 192m
3/ h, three layers of total spray flux are 576m
3/ h, liquid-gas ratio are 3:1;
Reduce through demister finally by the flue gas after desulfurization after desulfurizing and purifying and the heat exchange cooling and moisturely to discharge by flue gas discharge opening, then deliver to salt taw nitre device by the purified brine outlet by purified brine discharge system with the flue gas heat exchange intensification with the purified brine behind the smoke reaction and produce salt and saltcake, whenever necessary, can open with branch road that desulfurizing tower links to each other on valve, purified brine is back in the desulfurizing tower; When monitoring the bittern purifying that stores that purified brine stores in the district, the liquid level sensor in the desulfurization exceeds setting during liquid level, can be by the aperture of the motor-driven valve on the bittern discharge line in the control purified brine discharge system, regulate the discharge rate of purified brine, the liquid level of depositing of purified brine being stored purified brine in the district is controlled at the setting liquid level.
When discharge purified brine pH value is lower than 8, starts the alkali lye replenishment system and assist desulfurization in desulfurizing tower, to send into alkali lye; At the SO that discharges flue gas
2When content is higher than preset value, starting the alkali lye replenishment system assists desulfurization and is lower than at 10 o'clock in the purified brine pH value that enters to send into alkali lye in desulfurizing tower, start the alkali lye replenishment system and assist desulfurization in desulfurizing tower, to send into alkali lye, and will discharge the SO in the flue gas
2Content is controlled at setting range and the pH of the purified brine of discharging is controlled to be in the scope of 8-8.5; Described alkali lye is NaOH.
In addition, can open whenever necessary the first rinse-system and the second rinse-system, respectively to the bittern suction line in the bittern pumping system clean with purified brine discharge system in store the bittern suction line that links to each other of district with purified brine and clean, and open whenever necessary backwashing system, demister is carried out hydro-peening.
Except this, when such as needs system such as desulfurizing tower being overhauled, can close gas approach motor-driven valve and exhanst gas outlet motor-driven valve, open the bypass flue motor-driven valve, in order to it is overhauled, generally when system's normal operating condition, gas approach motor-driven valve, exhanst gas outlet motor-driven valve all are opening, the bypass flue motor-driven valve is closed condition, sends into desulfurizing tower and carries out desulfurization and flue gas is sent into pipeline through flue gas.
This salt slurry-purified brine flue gas desulfurization technique can remove the SO in the flue gas on the one hand greatly
2, reduce SO
2Discharge capacity, it uses the discarded object salt slurry to carry out desulfurization on the other hand, also having reduced the heap of salt slurry abandons, also saved the salt slurry disposal costs of salt slurry re-injection in the down-hole simultaneously, protected environment, simultaneously salt slurry and purified brine are used for desulfurization, also reduced widely the use of the desulfurizing agents such as calcium carbonate commonly used in the general sulfur removal technology and NaOH, reduced cost, purified brine also can carry out heat exchange with flue gas in sweetening process in addition, and the purified brine temperature-averaging can be increased to 55.28 ℃ by 24.34 ℃, it can directly be sent into the sal prunella device and carries out salt manufacturing and nitre processed thus, and the purified brine that has reduced general normal temperature needed heating process when delivering to salt manufacturing nitre has reduced the use of heating required steam; And the Na that in purified brine and flue gas contact desulfurization process, produces
2SO
4, Na
2SO
3, also improved the output of thenardite.
With our situation in 1 year of company such as year last year 58.72 ten thousand tons of producing steams, consumption 10.87 ten thousand tons in coal (sulfur-bearing 0.69%, ash 30%) is not as in the situation that carry out desulfurization, the annual SO that produces of this stove
2=GSO
2Be 1350t/a, GSO
2=2BFS, B are coal consumption, and F is SO
2Conversion ratio 0.9, S are the sulfur in the coal.Flue gas in conjunction with the desulfuration efficiency 94% of this salt slurry-purified brine flue gas desulfurization technique, can calculate annual diminishbb S0 thus behind this technique desulfurization and dedusting
2Discharge capacity can reach 1269t/a.
The by-product salt slurry amount of using take 1 year this salt slurry-purified brine flue gas desulfurization technique as 2500t as, it can solve totally 132.8 ten thousand yuan/year of salt slurry re-injection expenses, and is specific as follows:
| Sequence number | Content | The amount of money (ten thousand yuan/year) |
| 1 | Water | 2.4 |
| 2 | Electricity | 5.4 |
| 3 | The labour cost expense | 80 |
| 4 | Equipment maintenance cost | 25 |
| 5 | Amortization charge | 20 |
| 6 | Add up to | 132.8 |
The purified brine amount of using take 1 year this salt slurry-purified brine flue gas desulfurization technique is as about 1,200,000 tons, this technique is increased to 55.28 ℃ with the purified brine temperature by 24.34 ℃, can reach to have reduced this purified brine and also need to heat 912.64 ten thousand yuan of required steam costs when denitrification apparatus carries out denitration being sent to.
Simultaneously, use purified brine as desulfurizing agent, also can reduce widely the purchase cost that the desulfurizing agents such as calcium carbonate and NaOH are used in desulfurization.
Claims (12)
1. salt slurry-purified brine flue gas desulfurization technique, it is characterized in that: it may further comprise the steps:
(1) mixes burning with being sent to after the dehydration of the salt slurry that produces in the bittern purifying process in the CFBB to mix with fire coal, again to mixing the discharge flue gas ash removal after the burning;
(2) purified brine sent into carried out desulfurization in the purified brine flue gas desulphurization system:
Described purified brine flue gas desulphurization system comprises desulfurizing tower, the purified brine pumping system, one side at described desulfurizing tower middle part is provided with gas approach, sending into pipeline with flue gas links to each other, be used for passing into flue gas after the dedusting, the top of described desulfurizing tower is provided with flue gas discharge opening, link to each other with the smoke discharge tube road, be used for discharging flue gas after desulfurization, the top of gas approach is provided with the atomizer for the atomizing purified brine in the described desulfurizing tower, the top of described desulfurizing tower, the top of atomizer is provided with demister, be used for removing flue gas moisture, the bottom of described desulfurizing tower is that purified brine stores the district, and described purified brine stores district's one side and is provided with the purified brine import, entering pipeline with bittern links to each other, be used for sending into purified brine, described purified brine stores district's opposite side and is provided with the purified brine outlet, is used for discharging purified brine; Described purified brine pumping system comprises one or more groups pumping unit, described every group of pumping unit comprises the bittern circulating pump, the bittern intake line that links to each other with bittern circulating pump suction side and the bittern discharge line that links to each other with bittern circulating pump outlet side, and the bittern intake line in each pumping unit stores the district with purified brine and links to each other, and the bittern discharge line links to each other with atomizer;
Described purified brine flue gas desulfurization technique is: the described dedusting flue gas of step (1) is sent in the desulfurizing tower through the gas approach of purified brine flue gas desulphurization system, meanwhile, store the district to the purified brine of desulfurizing tower bottom and send into purified brine through the purified brine import, and by the purified brine pumping system purified brine is delivered in the atomizer, be to carry out desulfurization with mobile from bottom to top dedusting flue gas haptoreaction behind the drop by atomizer with purified brine atomizing again, rear desulfurization fume is discharged from flue gas discharge opening after the demister dehydration, and purified brine is discharged through the purified brine outlet.
2. salt slurry according to claim 1-purified brine flue gas desulfurization technique is characterized in that: the salt slurry in the described step (1) is water content≤10wt% after dehydration, NaCl content≤8wt%, salt slurry granularity≤2mm.
3. salt slurry according to claim 1-purified brine flue gas desulfurization technique is characterized in that: it forms by mass percentage that content is: CaCO after the salt slurry dehydration in the described step (1)
370-80%, Mg (OH)
25-10%, NaCl 5-8%, H
2O 8-10%.
4. salt slurry according to claim 1-purified brine flue gas desulfurization technique is characterized in that: the salt slurry in described rapid (1) is to be ejected in the CFBB by the blast injection device; Fire box temperature in the described CFBB is 850-950 ℃; Described calcium sulfur ratio is 1.5-2:1.
5. salt slurry according to claim 1-purified brine flue gas desulfurization technique is characterized in that: the purified brine in the described step (2) is that sodium sulphate type bittern is adopted the pH value that produces after caustic soda-Method of Soda purified treatment is the purified brine of 10-11.
6. salt slurry according to claim 1-purified brine flue gas desulfurization technique is characterized in that: the purified brine spray flux of atomizer spray is 500-777m in the described step (2)
3/ h; Liquid-gas ratio is 2.6-4:1.
7. salt slurry according to claim 1-purified brine flue gas desulfurization technique, it is characterized in that: described purified brine flue gas desulphurization system also comprises control system and the alkali lye replenishment system that links to each other with desulfurizing tower, described smoke discharge tube road is provided with flue gas on-line monitoring equipment, is used for the SO that flue gas is discharged in monitoring
2Content, in the described purified brine import department and purified brine outlet place is equipped with online pH monitoring meter, described control system is counted with the online pH monitoring of flue gas on-line monitoring equipment, purified brine import department, the online pH monitoring at purified brine outlet place is taken into account the alkali lye replenishment system and linked to each other, and is used for the SO that flue gas is discharged in monitoring
2Content, the purified brine pH value that enters and the purified brine pH value of discharging, and be lower than at 8 o'clock discharging purified brine pH value, startup alkali lye replenishment system is assisted desulfurization to send into alkali lye in desulfurizing tower; At the SO that discharges flue gas
2When content is higher than preset value, start the alkali lye replenishment system in desulfurizing tower, to send into alkali lye and assist desulfurization and when the purified brine pH value that enters is lower than preset value, start the alkali lye replenishment system and assist desulfurization in desulfurizing tower, to send into alkali lye, and will discharge the SO in the flue gas
2Content is controlled at setting range and the pH of the purified brine of discharging is controlled to be in the scope of 8-8.5;
Described purified brine flue gas desulfurization technique is included in discharge purified brine pH value and is lower than at 8 o'clock, starts the alkali lye replenishment system and assists desulfurization to send into alkali lye in desulfurizing tower; At the SO that discharges flue gas
2When content is higher than preset value, start the alkali lye replenishment system in desulfurizing tower, to send into alkali lye and assist desulfurization and when the purified brine pH value that enters is lower than preset value, start the alkali lye replenishment system and assist desulfurization in desulfurizing tower, to send into alkali lye, and will discharge the SO in the flue gas
2Content is controlled at setting range and the pH of the purified brine of discharging is controlled to be in the scope of 8-8.5; Described alkali lye is NaOH.
8. salt slurry according to claim 7-purified brine flue gas desulfurization technique, it is characterized in that: described alkali lye replenishment system comprises alkali tank and the alkali lye pumping system that links to each other with the alkali tank, described alkali lye pumping system comprises the pumping unit that one or more groups is arranged side by side, every group of pumping unit comprise add alkali pump, with add alkali lye intake line that the alkali pump suction side links to each other with the alkali lye discharge line that adds the alkali pump outlet side and link to each other, the alkali lye intake line of described each pumping unit links to each other with the alkali tank, described alkali lye discharge line links to each other with desulfurizing tower, so that alkali lye is sent in the desulfurizing tower; Be equipped with pressure sensor on the alkali lye discharge line of described every group of pumping unit, and link to each other with control system, to judge the ruuning situation that adds alkali pump in this pumping unit by monitoring its pressure value, and the alkali pump that adds in each pumping unit also links to each other with control system, to control as required the start and stop that respectively add alkali pump.
9. salt slurry according to claim 7-purified brine flue gas desulfurization technique, it is characterized in that: the interval is laid with the multilayer atomizer in the described desulfurizing tower, described atomizer is comprised of a plurality of hollow cone spiral nozzles, the number of plies of the number of pumping unit group and atomizer is corresponding in the described purified brine pumping system, and the bittern discharge line in each pumping unit is corresponding continuous one by one with atomizer, is pumped in each atomizer with the purified brine that purified brine is stored in the district; Be equipped with pressure sensor on the bittern discharge line of described every group of pumping unit, and link to each other with control system, to judge the ruuning situation of bittern circulating pump in each pumping unit by monitoring its pressure value, and the bittern circulating pump in each pumping unit also links to each other with control system, to control as required the start and stop of each bittern circulating pump.
10. salt slurry according to claim 7-purified brine flue gas desulfurization technique, it is characterized in that: described purified brine flue gas desulphurization system comprises that also described purified brine discharge system comprises the pumping unit that one or more groups is arranged side by side, every group of pumping unit comprises the bittern excavationg pump, the bittern intake line that links to each other with bittern excavationg pump suction side and the bittern discharge line that links to each other with bittern circulating pump outlet side, described bittern intake line links to each other with the purified brine outlet, described bittern discharge line is provided with a branch road that links to each other with desulfurizing tower, the branch road that links to each other with desulfurizing tower on the described bittern discharge line is provided with valve, whenever necessary purified brine is being back in the desulfurizing tower, be equipped with pressure sensor on the pipeline bittern discharge line of described every group of pumping unit, and link to each other with control system, to judge the ruuning situation of bittern excavationg pump in each pumping unit by monitoring its pressure value, and the bittern excavationg pump in each pumping unit also links to each other with control system, to control as required the start and stop of each bittern excavationg pump;
The purified brine of desulfurizing tower stores and is provided with liquid level sensor in the district in the described purified brine flue gas desulphurization system, the bittern discharge line that described purified brine is discharged system is provided with motor-driven valve, described control system links to each other with the motor-driven valve that liquid level sensor and purified brine are discharged on system's bittern discharge line, be used for the aperture by the control motor-driven valve, regulate the discharge rate of purified brine, the purified brine that purified brine is stored in the district is controlled at the setting liquid level;
Described purified brine flue gas desulfurization technique comprises that enabling purified brine discharges system, purified brine after heating up with the smoke reaction heat exchange is delivered to the sal prunella device produce salt and saltcake, and whenever necessary, open with branch road that desulfurizing tower links to each other on valve, purified brine is back in the desulfurizing tower; And when the liquid level sensor desulfurization in monitors purified brine and stores storing bittern purifying and exceed the setting liquid level in distinguishing, can be by the aperture of the motor-driven valve on the bittern discharge line in the control purified brine discharge system, regulate the discharge rate of purified brine, the liquid level of depositing of purified brine being stored purified brine in the district is controlled at the setting liquid level.
11. salt slurry according to claim 10-purified brine flue gas desulfurization technique, it is characterized in that: described purified brine flue gas desulphurization system also comprises the first rinse-system, it links to each other with bittern intake line in the purified brine pumping system, is used for the bittern intake line of purified brine pumping system is cleaned; The second rinse-system, it links to each other with bittern intake line in the purified brine discharge system, is used for the bittern intake line of purified brine discharge system is cleaned;
The interval is laid with the multilayer demister in the described desulfurizing tower; Described purified brine flue gas desulphurization system also comprises backwashing system, described backwashing system comprises shower nozzle and one or more groups pumping unit arranged side by side that is located at demister above and below in the desulfurizing tower, every group of pumping unit comprises backwashing pump, the recoil lotion intake line that links to each other with the backwashing pump suction side and the recoil lotion discharge line that links to each other with the backwashing pump outlet side, described backwash discharge line links to each other with shower nozzle, so that demister is carried out up and down hydro-peening;
Described purified brine flue gas desulfurization technique comprises enables the first rinse-system and the second rinse-system whenever necessary, clean storing the bittern suction line that links to each other of district with purified brine in the bittern pumping system, and distinguish the bittern suction line that links to each other and clean storing with purified brine in the purified brine discharge system; And open whenever necessary backwashing system, demister is carried out hydro-peening.
12. salt slurry according to claim 7-purified brine flue gas desulfurization technique, it is characterized in that: the flue gas of described purified brine flue gas desulphurization system is sent into pipeline and is provided with a bypass flue that is connected with the smoke discharge tube road, and this bypass flue is provided with the bypass flue motor-driven valve; Flue gas after described this bypass flue send on the pipeline and smoke discharge tube road before on be respectively equipped with gas approach motor-driven valve and exhanst gas outlet motor-driven valve; Described gas approach motor-driven valve, exhanst gas outlet motor-driven valve and bypass flue motor-driven valve link to each other with control system, be used for control system when normal operating condition, open gas approach motor-driven valve, exhanst gas outlet motor-driven valve, close the bypass flue motor-driven valve, flue gas is sent into desulfurizing tower carry out desulfurization; When the desulfurizing tower inspecting state, close gas approach motor-driven valve and exhanst gas outlet motor-driven valve, open the bypass flue motor-driven valve, so that system is overhauled;
Described flue gas is sent into pipeline and is provided with the flue-gas temperature monitoring sensor, and described flue-gas temperature monitoring sensor links to each other with control system, the temperature of flue gas after the dedusting of sending into monitoring;
The temperature of flue gas should be more than the flue gas dew point temperature after the dedusting of sending in the described purified brine flue gas desulfurization technique.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190243A (en) * | 2014-08-05 | 2014-12-10 | 内蒙古君正能源化工股份有限公司热电厂 | Acetylene sludge desulfurization method and equipment for coal-fired boiler |
| CN104386712A (en) * | 2014-10-21 | 2015-03-04 | 中盐东兴盐化股份有限公司 | Separating method for co-production of salt and glauber's salt |
| CN107875833A (en) * | 2017-12-29 | 2018-04-06 | 西安长庆科技工程有限责任公司 | It is a kind of that automatic cycle, discharge opeing and the system of fluid infusion are realized based on desulfuration absorbing tower |
| CN107930372A (en) * | 2017-12-29 | 2018-04-20 | 西安长庆科技工程有限责任公司 | A kind of integrated device and methods for using them based on triazine solution desulfurization |
| CN111013365A (en) * | 2019-12-30 | 2020-04-17 | 深圳续盈环保科技有限公司 | Wet flue gas deacidification device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274206A (en) * | 2007-12-25 | 2008-10-01 | 江苏省井神盐业有限公司 | Method for producing sulfur absorbing agent by 'salty mud' |
| CN201454402U (en) * | 2009-07-13 | 2010-05-12 | 师少杰 | Wet flue gas desulfurization device by taking sodium alkali as desulfurizer |
| CN101734687A (en) * | 2009-12-22 | 2010-06-16 | 自贡市轻工业设计研究院有限责任公司 | Process for purifying and treating vacuum salt preparation brine and boiler waste gas and device thereof |
-
2013
- 2013-05-27 CN CN201310199856.1A patent/CN103316577B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274206A (en) * | 2007-12-25 | 2008-10-01 | 江苏省井神盐业有限公司 | Method for producing sulfur absorbing agent by 'salty mud' |
| CN201454402U (en) * | 2009-07-13 | 2010-05-12 | 师少杰 | Wet flue gas desulfurization device by taking sodium alkali as desulfurizer |
| CN101734687A (en) * | 2009-12-22 | 2010-06-16 | 自贡市轻工业设计研究院有限责任公司 | Process for purifying and treating vacuum salt preparation brine and boiler waste gas and device thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190243A (en) * | 2014-08-05 | 2014-12-10 | 内蒙古君正能源化工股份有限公司热电厂 | Acetylene sludge desulfurization method and equipment for coal-fired boiler |
| CN104386712A (en) * | 2014-10-21 | 2015-03-04 | 中盐东兴盐化股份有限公司 | Separating method for co-production of salt and glauber's salt |
| CN107875833A (en) * | 2017-12-29 | 2018-04-06 | 西安长庆科技工程有限责任公司 | It is a kind of that automatic cycle, discharge opeing and the system of fluid infusion are realized based on desulfuration absorbing tower |
| CN107930372A (en) * | 2017-12-29 | 2018-04-20 | 西安长庆科技工程有限责任公司 | A kind of integrated device and methods for using them based on triazine solution desulfurization |
| CN111013365A (en) * | 2019-12-30 | 2020-04-17 | 深圳续盈环保科技有限公司 | Wet flue gas deacidification device and method |
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Effective date of registration: 20191210 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Sinopec Jianghan Salt Chemical Hubei Co., Ltd Patentee after: China Petrochemical Co., Ltd. Address before: 430000 a village, Qianjiang, Ezhou, Hubei, Qianjiang Patentee before: Jianghan Salt & Chemical Complex, SINOPEC Corp. |