CN103405991B - Energy-efficient comprehensive desulfurization and purification system and method for active coke of different flue gases - Google Patents
Energy-efficient comprehensive desulfurization and purification system and method for active coke of different flue gases Download PDFInfo
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- CN103405991B CN103405991B CN201310371346.8A CN201310371346A CN103405991B CN 103405991 B CN103405991 B CN 103405991B CN 201310371346 A CN201310371346 A CN 201310371346A CN 103405991 B CN103405991 B CN 103405991B
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Abstract
The invention discloses an energy-efficient comprehensive desulfurization and purification system and method for active coke of different flue gases. The purification system comprises a first adsorption desulfurization section, a second adsorption desulfurization section, an active coke regeneration section and active coke conveying equipment. According to the purification method, the purification system is adopted to carry out desulfurization and purification on different flue gases, and the purification method comprises a smoke desulfurization step and active coke regenerating and circulating steps, which are synchronously carried out. According to the energy-efficient comprehensive desulfurization and purification system and method for active coke of different flue gases disclosed by the invention, the difference of the flue gas conditions of different flue gas components and the like is fully utilized; the flue gas suitable for the processing conditions is formed after mixing; the pretreatment procedure of the flue gas in independent treatment is reduced; the flow is simplified; energy conservation and consumption reduction are achieved; the characteristics of different flue gases can be fully utilized; comprehensive treatment is carried out; the operation cost is reduced; energy conservation and consumption reduction are achieved; efficient purification of pollutants is also achieved.
Description
Technical field
The present invention relates to the technical field of flue gas desulfurization, particularly relate to the energy-efficient synthesis desulfurating cleaning system of a kind of activated coke for different flue gas and method.
Background technology
" national environmental protection " 12 " planning " (No. (2011) 42, promulgated by the State Council) proposes, and " strengthen sulfur dioxide and nitrogen oxide reduction of discharging dynamics, the emission reduction targets of sulfur dioxide declined 8% than 2010 in 2015, and the task of therefore desulfurization is still more arduous.
Active coke dry-method desulfuration technology carries out the dry method resource desulfur technology of gas cleaning based on physics-chemisorbed principle, by the de-SO of property Jiao absorption
2, absorption SO
2after activated coke, by heating regenerate, activated coke recycles, obtain concentration be the SO of 20 ~ 30%
2gas, adopts ripe chemical process, can produce multiple Containing Sulfur chemical product, as sulfuric acid, ammonium sulfate, liquid SO
2deng.
Active coke dry-method desulfuration technology, with its water saving, integrated purifying, non-secondary pollution, reclaims the advantages such as Sulphur ressource and is applied in fields such as non-ferrous metal metallurgy, coal-burning boiler, sintering.
At present in the flue gas desulfurization course of industrial furnace, because production process is different, in same enterprise, have different temperatures, the flue gas of characteristic needs process, the flue gas of industrial furnace as existing in nonferrous smelting, also there is the flue gas of environment gas collection, also have the flue gas of sulphuric acid plant, individually process, some needs cooling, some needs to use steam humidifying and preservative treatment etc., and technological process is relatively complicated, and investment and operating cost are increased.The present invention aims to provide the energy-efficient synthesis desulfurating cleaning system of a kind of activated coke for different flue gas and method, makes full use of the characteristic of different flue gas, integrated treatment, reduces operating cost, energy-saving and cost-reducing and realize the high-efficient purification of pollutant.
Summary of the invention
In view of the deficiency that above-mentioned prior art exists, the present invention proposes the energy-efficient synthesis desulfurating cleaning system of a kind of activated coke for different flue gas and method, the characteristic of different flue gas can be made full use of, integrated treatment, reduce operating cost, energy-saving and cost-reducing and realize the high-efficient purification of pollutant.
The present invention is for achieving the above object, and the energy-efficient synthesis desulfurating cleaning system of a kind of activated coke for different flue gas provided by the invention, comprises the first adsorption desulfurize section, the second adsorption desulfurize section, activated coke regenerator section and activated coke conveying equipment.
Described first adsorption desulfurize section comprises the first desulfurization adsorption tower purified for different flue gas desulfurization, for importing the first desulfurization fume pipeline of different flue gas and the first tower top feed bin for importing activated coke, described first desulfurization fume pipeline conducting is connected to the bottom of described first desulfurization adsorption tower, and described first tower top feed bin conducting is connected to the top of described first desulfurization adsorption tower.
Described second adsorption desulfurize section comprises the second desulfurization adsorption tower purified for different flue gas desulfurization, for importing the second desulfurization fume pipeline of different flue gas and the second tower top feed bin for importing activated coke, described second desulfurization fume pipeline conducting is connected to the bottom of described second desulfurization adsorption tower, and described second tower top feed bin conducting is connected to the top of described second desulfurization adsorption tower.
Described activated coke regenerator section comprises the regeneration reactor for activated coke regeneration.
Described activated coke conveying equipment comprises screening plant for sieving activated coke, for transferring the first conveyer of activated coke, second conveyor and the 3rd conveyer.
Be sequentially connected in series for discharging the first feed opening of the activated coke through the first desulfurization adsorption tower reaction, described first conveyer, described screening plant and described second tower top feed bin bottom described first desulfurization adsorption tower, to be connected to the activated coke charging aperture of described regeneration reactor bottom described second desulfurization adsorption tower by described second conveyor for discharging the second feed opening of activated coke through the second desulfurization adsorption tower reaction, the activated coke discharging opening of described regeneration reactor is connected on described first tower top feed bin by the 3rd conveyer.
As a further improvement on the present invention, also comprise the batcher for adding fresh activity Jiao for system, described batcher is connected on described first conveyer.
As a further improvement on the present invention, described first desulfurization adsorption tower is cross-flow moving bed structure, and described second desulfurization adsorption tower is adverse current bed structure.
As a further improvement on the present invention, described first desulfurization adsorption tower can be single or multiple desulfurization adsorption tower parallel-connection structures.
As a further improvement on the present invention, be provided with in described regeneration reactor distribute from top to bottom the thermal treatment zone, renewing zone and cooling zone; The one-way circulation closed-loop system be connected with the conducting of the described thermal treatment zone is also provided with outside described regeneration reactor, described one-way circulation closed-loop system comprises circulating fan and thermal source, the input port conducting of described circulating fan is connected to the top of the described thermal treatment zone, and the delivery outlet of described circulating fan is led to by the lower guide of described thermal source and the described thermal treatment zone and connects.
As a further improvement on the present invention, described first conveyer, second conveyor and the 3rd conveyer are bucket conveyor.
As a further improvement on the present invention, the first charging unloader is provided with between described 3rd conveyer and described first tower top feed bin, the first discharging unloader is provided with between described first feed opening and described first conveyer, the second charging unloader is provided with between described screening plant and described second tower top feed bin, the second discharging unloader is provided with between described second feed opening and described second conveyor, the 3rd charging unloader is provided with between described second conveyor and described regeneration reactor, the 3rd discharging unloader is provided with between described regeneration reactor and described 3rd conveyer,
Described first charging unloader, the first discharging unloader, the second charging unloader and the second discharging unloader are single spool Star-like unloader, and described 3rd charging unloader and the 3rd discharging unloader are double spool Star-like unloader.
As a further improvement on the present invention, also comprise one for the chimney of flue gas after emission purification, described first desulfurization adsorption tower is connected on described chimney by the first purifying smoke pipeline, described second desulfurization adsorption tower is connected on described chimney by the second purifying smoke pipeline, described first desulfurization fume pipeline, the second desulfurization fume pipeline, the first purifying smoke pipeline and described second purifying smoke pipeline is provided with the air door for controlling flue gas flow.
The present invention also proposes the energy-efficient synthesis desulfurating purification method of a kind of activated coke for different flue gas, adopt the above-mentioned energy-efficient synthesis desulfurating of the activated coke for different flue gas cleaning system to carry out the desulfurizing and purifying of different flue gas, comprise the flue gas desulfurization step and activated coke regeneration and circulation step of synchronously carrying out.
Flue gas desulfurization step: converged by different flue gas and import described first desulfurization fume pipeline and/or described second desulfurization fume pipeline, different flue gas carries out reaction with activated coke and completes Dry FGD in described first desulfurization adsorption tower and/or described second desulfurization adsorption tower.
Activated coke regeneration and circulation step: fresh activity Jiao that the activated coke of discharging from the first feed opening of the first desulfurization adsorption tower and batcher add sends into screening plant by the first conveyer and sieves, and the activated coke meeting desulfurization requirement enters the second tower top feed bin and then enters the second desulfurization absorption tower adsorbs SO
2activated coke after absorption is discharged from the second feed opening bottom the second desulfurization adsorption tower, enter second conveyor, send in regeneration reactor by second conveyor, by the thermal treatment zone, renewing zone, cooling zone, activated coke is regenerated successively, activated coke after regeneration is discharged by activated coke discharging opening and is sent into the first tower top feed bin by the 3rd conveyer, and activated coke enters the first desulfurization absorption tower adsorbs SO
2, then discharged by the first feed opening of the first desulfurization adsorption tower, enter and recycle next time.
As a further improvement on the present invention, the flue-gas temperature that described first desulfurization fume pipeline imports is 50-100 DEG C, and the flue-gas temperature that described second desulfurization fume pipeline imports is more than 100 DEG C.
Activated coke for different flue gas energy-efficient synthesis desulfurating cleaning system of the present invention and method compared with prior art at least have following technique effect:
The first, take full advantage of the otherness of the flue gas conditions such as different flue gas compositions, after mixing, become the flue gas of applicable treatment conditions, decrease the pretreatment process to flue gas when processing separately, simple flow, realize energy-saving and cost-reducing.
The second, high-temperature flue gas enters the second adsorption desulfurize section, and the activated coke utilizing the first adsorption desulfurize section to discharge, can improve the utilization rate of activated coke, improves the activated coke temperature entering regenerator section simultaneously, reduces the energy consumption of regeneration heating.
Three, the converging flue gas and can reduce SO under abnormal condition of different workshop sections mixing
2instantaneous variation maximum, be conducive to system stable operation.
4th. the activated coke of whole system can recycle in synchronizing regeneration, improves flue gas desulfurization purification efficiency further, saves energy consumption, reduces operating cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the energy-efficient synthesis desulfurating cleaning system of the activated coke for different flue gas of the present invention.
Primary clustering symbol description in figure:
100. first adsorption desulfurize sections, 110. first desulfurization adsorption towers, 111. first feed openings, 120. first desulfurization fume pipelines, 130. first tower top feed bins, 200. second adsorption desulfurize sections, 210. second desulfurization adsorption towers, 211 second feed openings, 220. second desulfurization fume pipelines, 230. second tower top feed bins, 300. activated coke regenerator sections, 310. regeneration reactor, 311. activated coke charging apertures, 312 activated coke discharging openings, 313. the thermal treatment zone, 314. renewing zone, 315 cooling zones, 316. circulating fan, 317. thermal source, 318. cooling blower, 410. screening plant, 420. first conveyers, 430. second conveyor, 440. the 3rd conveyers, 500. batcher, 610. first charging unloaders, 620. first discharging unloaders, 630. second charging unloaders, 640. second discharging unloaders, 650. the 3rd charging unloaders, 660. the 3rd discharging unloaders, 700. chimney, 800. first purifying smoke pipelines, 900. second purifying smoke pipelines.
Detailed description of the invention
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Embodiment one:
Fig. 1 is the structural representation of the energy-efficient synthesis desulfurating cleaning system of the activated coke for different flue gas of the present invention.As shown in Figure 1, the energy-efficient synthesis desulfurating cleaning system of a kind of activated coke for different flue gas that the present embodiment proposes, comprises the first adsorption desulfurize section 100, second adsorption desulfurize section 200, activated coke regenerator section 300 and activated coke conveying equipment.
First adsorption desulfurize section 100 comprises the first desulfurization adsorption tower 110 purified for different flue gas desulfurization, for importing the first desulfurization fume pipeline 120 of different flue gas and the first tower top feed bin 130 for importing activated coke, first desulfurization fume pipeline 120 conducting is connected to the bottom of the first desulfurization adsorption tower 110, and the first tower top feed bin 130 conducting is connected to the top of the first desulfurization adsorption tower 110.
Second adsorption desulfurize section 200 comprises the second desulfurization adsorption tower 210 purified for different flue gas desulfurization, for importing the second desulfurization fume pipeline 220 of different flue gas and the second tower top feed bin 230 for importing activated coke, second desulfurization fume pipeline 220 conducting is connected to the bottom of the second desulfurization adsorption tower 210, and the second tower top feed bin 230 conducting is connected to the top of the second desulfurization adsorption tower 210.
Activated coke regenerator section 300 comprises the regeneration reactor 310 for activated coke regeneration.
Described activated coke conveying equipment comprises screening plant 410 for sieving activated coke, for transferring the first conveyer 420 of activated coke, second conveyor 430 and the 3rd conveyer 440.
Be sequentially connected in series for discharging the first feed opening 111, first conveyer 420 of activated coke, screening plant 410 and the second tower top feed bin 230 that react through the first desulfurization adsorption tower 110 bottom first desulfurization adsorption tower 110, to be connected to the activated coke charging aperture 311 of regeneration reactor 310 bottom second desulfurization adsorption tower 210 by second conveyor 430 for discharging the second feed opening 211 of activated coke of reacting through the second desulfurization adsorption tower 210, the activated coke discharging opening 312 of regeneration reactor 310 is connected on the first tower top feed bin 130 by the 3rd conveyer 440.
Concrete, as shown in the figure, the present embodiment also comprises the batcher 500 for adding fresh activity Jiao for system, and batcher 500 is connected on the first conveyer 420.
Concrete, the first desulfurization adsorption tower 110 is cross-flow moving bed structure, and the second desulfurization adsorption tower 210 is adverse current bed structure.Exemplary, as shown in the figure, the present embodiment only adopts one to be cross-flow moving bedly used as the first desulfurization adsorption tower 110 and an adverse current bed is used as the second desulfurization adsorption tower 210, and cross-flow moving bed and adverse current bed is conventional outsourcing piece, repeats no more herein.
Of course, in other specific embodiments, can also adopt the first desulfurization adsorption tower and the second desulfurization adsorption tower of other versions, the first desulfurization adsorption tower and/or the second desulfurization adsorption tower can also be respectively multiple desulfurization adsorption tower parallel-connection structure simultaneously, repeat no more herein.
Exemplary, as shown in the figure, be provided with in regeneration reactor 310 distribute from top to bottom the thermal treatment zone 313, renewing zone 314 and cooling zone 315; The one-way circulation closed-loop system be connected with the thermal treatment zone 313 conducting is also provided with outside regeneration reactor 310, described one-way circulation closed-loop system comprises circulating fan 316 and thermal source 317, the input port conducting of circulating fan 316 is connected to the top of the thermal treatment zone 313, and the delivery outlet of circulating fan 316 to be led to the lower guide of the thermal treatment zone 313 by thermal source 317 and connects.In addition, on cooling zone 315, conducting is provided with cooling blower 318, and what renewing zone 314 is provided with the generation of derivation regenerative process contains SO
2the outlet etc. of desorption gas, those skilled in the art can carry out selecting and arranging according to common practise or prior art, repeat no more herein.
Exemplary, first conveyer 420 of the present embodiment, second conveyor 430 and the 3rd conveyer 440 all adopt bucket conveyor.The first charging unloader 610 is provided with between 3rd conveyer 440 and the first tower top feed bin 130, the first discharging unloader 620 is provided with between first feed opening 111 and the first conveyer 420, the second charging unloader 630 is provided with between screening plant 410 and the second tower top feed bin 230, the second discharging unloader 640 is provided with between second feed opening 211 and second conveyor 430, be provided with the 3rd charging unloader 650 between second conveyor 430 and regeneration reactor 310, between regeneration reactor 310 and the 3rd conveyer 440, be provided with the 3rd discharging unloader 660.
First charging unloader 610, first discharging unloader 620, second charging unloader 630 and the second discharging unloader 640 are single spool Star-like unloader, and the 3rd charging unloader 650 and the 3rd discharging unloader 660 are double spool Star-like unloader.
Of course, in other specific embodiments, described first conveyer, second conveyor and the 3rd conveyer, and described first charging unloader, the first discharging unloader, the second charging unloader, the second discharging unloader, described 3rd charging unloader and the 3rd discharging unloader, all can select other conventional outsourcing pieces, repeat no more herein.
Concrete, as shown in the figure, the present embodiment also comprises one for the chimney 700 of flue gas after emission purification, first desulfurization adsorption tower 110 is connected on chimney 700 by the first purifying smoke pipeline 800, second desulfurization adsorption tower 210 is connected on chimney 700 by the second purifying smoke pipeline 900, the first desulfurization fume pipeline 120, second desulfurization fume pipeline 220, first purifying smoke pipeline 800 and the second purifying smoke pipeline 900 is provided with the air door (not marking in figure) for controlling flue gas flow.
Of course, in other specific embodiments, can also adopt flue gas after other mode emission purifications, the setting of air door also can optionally be arranged as required.
The present embodiment also proposed the energy-efficient synthesis desulfurating purification method of a kind of activated coke for different flue gas, the method is the desulfurizing and purifying of the different flue gases adopting the above-mentioned activated coke for different flue gas energy-efficient synthesis desulfurating cleaning system to carry out, wherein, the flue gas desulfurization step and activated coke regeneration and circulation step of synchronously carrying out is comprised.Concrete steps are as follows:
Flue gas desulfurization step: different flue gas is converged importing first desulfurization fume pipeline 120 and/or the second desulfurization fume pipeline 220, different flue gas carries out reaction with activated coke and completes Dry FGD in the first desulfurization adsorption tower 110 and/or the second desulfurization adsorption tower 210.
Activated coke regeneration and circulation step: fresh activity that the activated coke of discharging from the first feed opening 111 of the first desulfurization adsorption tower 110 and batcher 500 add is burnt to be sent into screening plant 410 by the first conveyer 420 and sieve, the activated coke meeting desulfurization requirement enters the second tower top feed bin 230 and then enters the second desulfurization adsorption tower 210 and adsorb SO
2activated coke after absorption is discharged from the second feed opening 211 bottom the second desulfurization adsorption tower 210, enter second conveyor 430, send in regeneration reactor 310 by second conveyor 430, regenerated by the thermal treatment zone 313, renewing zone 314,315 pairs, cooling zone activated coke successively, activated coke after regeneration is discharged by activated coke discharging opening 312 and is sent into the first tower top feed bin 130 by the 3rd conveyer 440, and activated coke enters the first desulfurization adsorption tower 110 and adsorbs SO
2, then discharged by the first feed opening 111 of the first desulfurization adsorption tower 110, enter and recycle next time.
Further, the flue-gas temperature that the first desulfurization fume pipeline 120 imports is 50-100 DEG C, and the flue-gas temperature that the second desulfurization fume pipeline 220 imports is more than 100 DEG C.
Exemplary, by the flue gas that temperature is lower and temperature is very high from different workshop section, or SO
2after the flue gas that other flue gas conditions such as concentration and water content differ greatly fully mixes, what obtain applicable fume treatment working condition converges flue gas, imports the first desulfurization fume pipeline 120 and the second desulfurization fume pipeline 220 according to the thermal creep stress converging flue gas.The different flue gases of different workshop section can be connected on the first desulfurization fume pipeline 120 or the second desulfurization fume pipeline 220 by its discharge duct is other separately, directly realize carrying out SO in the corresponding adsorption desulfurize tower of mixing importing in the first desulfurization fume pipeline 120 or the second desulfurization fume pipeline 220
2absorption.Meanwhile, activated coke regeneration is also carried out synchronously with circulation step, for the first desulfurization adsorption tower 110 and the second desulfurization adsorption tower 210 provide suitable activated coke, carries out process in real time simultaneously regenerate and recycle the activated coke of discharging after its reaction.
Embodiment two:
The present embodiment is an embody rule of the present invention, is the situation that three kinds of different flue gases of discharging three different workshop sections process simultaneously.
The exhaust gas volumn of the first workshop section is 280000Nm
3/ h, SO
2concentration is 2400mg/Nm
3, flue-gas temperature is 70 DEG C.The exhaust gas volumn of the second workshop section is 110000Nm
3/ h, SO
2concentration is 1500mg/Nm
3, flue-gas temperature is 75 DEG C.First workshop section and the second workshop section are mixed into the first desulfurization fume pipeline, and its exhaust gas volumn is 390000Nm
3/ h, SO
2concentration is 2146mg/Nm
3, flue-gas temperature is 71.4 DEG C, and the first desulfurization fume pipeline enters the first desulfurization adsorption tower through air door and carries out SO
2absorption, purifying smoke enters the first purifying smoke pipeline, SO
2concentration is 120mg/Nm
3.The exhaust gas volumn 20000Nm of the 3rd workshop section
3/ h, SO
2concentration is 2400mg/Nm
3, temperature is 130 DEG C, and direct importing the second desulfurization fume pipeline enters the second desulfurization adsorption tower through air door and carries out SO
2absorption, after purification, flue gas enters the second purifying smoke pipeline, SO
2concentration is 150mg/Nm
3, then, the flue gas in the first purifying smoke pipeline and the second purifying smoke pipeline jointly enters chimney and discharges.Wherein, the first desulfurization adsorption tower desulfuration efficiency is the 94.4%, second desulfurization adsorption tower desulfuration efficiency is 93.7%, realizes SO
2safety and efficient desorption.
The activated coke of discharging from the first discharging discharger below the first desulfurization adsorption tower be arranged on fresh activity Jiao that the batcher the first conveyer adds and be delivered to screening plant by the first conveyer, activated coke enters the second tower top feed bin by the second charging discharger after screening, and then enter in the second desulfurization adsorption tower and carry out high-temperature flue gas desulfurization, the second discharging discharger of activated coke after desulfurization below the second desulfurization adsorption tower is discharged and is entered second conveyor, and deliver to regeneration reactor by second conveyor, successively through the thermal treatment zone, renewing zone, cooling zone completes regeneration, by the 3rd discharging discharger, enter the 3rd conveyer and enter the first tower top feed bin, realize recycling and efficient desorption of activated coke, save energy consumption, reduce operating cost.
Of course the flue gas that the present invention also can be used for more than three workshop sections, extension can be carried out according to the present embodiment and implement, all fall within protection scope of the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1., for the energy-efficient synthesis desulfurating cleaning system of activated coke of different flue gas, it is characterized in that:
Comprise the first adsorption desulfurize section, the second adsorption desulfurize section, activated coke regenerator section and activated coke conveying equipment;
Described first adsorption desulfurize section comprises the first desulfurization adsorption tower purified for different flue gas desulfurization, for importing the first desulfurization fume pipeline of different flue gas and the first tower top feed bin for importing activated coke, described first desulfurization fume pipeline conducting is connected to the bottom of described first desulfurization adsorption tower, and described first tower top feed bin conducting is connected to the top of described first desulfurization adsorption tower;
Described second adsorption desulfurize section comprises the second desulfurization adsorption tower purified for different flue gas desulfurization, for importing the second desulfurization fume pipeline of different flue gas and the second tower top feed bin for importing activated coke, described second desulfurization fume pipeline conducting is connected to the bottom of described second desulfurization adsorption tower, and described second tower top feed bin conducting is connected to the top of described second desulfurization adsorption tower;
Described activated coke regenerator section comprises the regeneration reactor for activated coke regeneration;
Described activated coke conveying equipment comprises screening plant for sieving activated coke, for transferring the first conveyer of activated coke, second conveyor and the 3rd conveyer;
Be sequentially connected in series for discharging the first feed opening of the activated coke through the first desulfurization adsorption tower reaction, described first conveyer, described screening plant and described second tower top feed bin bottom described first desulfurization adsorption tower, to be connected to the activated coke charging aperture of described regeneration reactor bottom described second desulfurization adsorption tower by described second conveyor for discharging the second feed opening of activated coke through the second desulfurization adsorption tower reaction, the activated coke discharging opening of described regeneration reactor is connected on described first tower top feed bin by the 3rd conveyer.
2. as claimed in claim 1 for the energy-efficient synthesis desulfurating cleaning system of activated coke of different flue gas, it is characterized in that: also comprise the batcher for adding fresh activity Jiao for system, described batcher is connected on described first conveyer.
3., as claimed in claim 1 for the energy-efficient synthesis desulfurating cleaning system of activated coke of different flue gas, it is characterized in that: described first desulfurization adsorption tower is cross-flow moving bed structure, described second desulfurization adsorption tower is adverse current bed structure.
4. as claimed in claim 1 for the energy-efficient synthesis desulfurating cleaning system of activated coke of different flue gas, it is characterized in that: described first desulfurization adsorption tower can be single or multiple desulfurization adsorption tower parallel-connection structure.
5., as claimed in claim 1 for the energy-efficient synthesis desulfurating cleaning system of activated coke of different flue gas, it is characterized in that: be provided with in described regeneration reactor distribute from top to bottom the thermal treatment zone, renewing zone and cooling zone; The one-way circulation closed-loop system be connected with the conducting of the described thermal treatment zone is also provided with outside described regeneration reactor, described one-way circulation closed-loop system comprises circulating fan and thermal source, the input port conducting of described circulating fan is connected to the top of the described thermal treatment zone, and the delivery outlet of described circulating fan is led to by the lower guide of described thermal source and the described thermal treatment zone and connects.
6., as claimed in claim 1 for the energy-efficient synthesis desulfurating cleaning system of activated coke of different flue gas, it is characterized in that: described first conveyer, second conveyor and/or the 3rd conveyer are bucket conveyor.
7. as claimed in claim 1 for the energy-efficient synthesis desulfurating cleaning system of activated coke of different flue gas, it is characterized in that: between described 3rd conveyer and described first tower top feed bin, be provided with the first charging unloader, the first discharging unloader is provided with between described first feed opening and described first conveyer, the second charging unloader is provided with between described screening plant and described second tower top feed bin, the second discharging unloader is provided with between described second feed opening and described second conveyor, the 3rd charging unloader is provided with between described second conveyor and described regeneration reactor, the 3rd discharging unloader is provided with between described regeneration reactor and described 3rd conveyer,
Described first charging unloader, the first discharging unloader, the second charging unloader and the second discharging unloader are single spool Star-like unloader, and described 3rd charging unloader and the 3rd discharging unloader are double spool Star-like unloader.
8. as claimed in claim 1 for the energy-efficient synthesis desulfurating cleaning system of activated coke of different flue gas, it is characterized in that: also comprise one for the chimney of flue gas after emission purification, described first desulfurization adsorption tower is connected on described chimney by the first purifying smoke pipeline, described second desulfurization adsorption tower is connected on described chimney by the second purifying smoke pipeline, described first desulfurization fume pipeline, the second desulfurization fume pipeline, the first purifying smoke pipeline and/or described second purifying smoke pipeline is provided with the air door for controlling flue gas flow.
9., for the energy-efficient synthesis desulfurating purification method of activated coke of different flue gas, it is characterized in that:
Adopt the energy-efficient synthesis desulfurating of the activated coke for the different flue gas cleaning system described in any one of claim 1-8 to carry out the desulfurizing and purifying of different flue gas, comprise the flue gas desulfurization step and activated coke regeneration and circulation step of synchronously carrying out;
Flue gas desulfurization step: converged by different flue gas and import described first desulfurization fume pipeline and/or described second desulfurization fume pipeline, different flue gas carries out reaction with activated coke and completes Dry FGD in described first desulfurization adsorption tower and/or described second desulfurization adsorption tower;
Activated coke regeneration and circulation step: fresh activity Jiao that the activated coke of discharging from the first feed opening of the first desulfurization adsorption tower and batcher add sends into screening plant by the first conveyer and sieves, and the activated coke meeting desulfurization requirement enters the second tower top feed bin and then enters the second desulfurization absorption tower adsorbs SO
2activated coke after absorption is discharged from the second feed opening bottom the second desulfurization adsorption tower, enter second conveyor, send in regeneration reactor by second conveyor, by the thermal treatment zone, renewing zone, cooling zone, activated coke is regenerated successively, activated coke after regeneration is discharged by activated coke discharging opening and is sent into the first tower top feed bin by the 3rd conveyer, and activated coke enters the first desulfurization absorption tower adsorbs SO
2, then discharged by the first feed opening of the first desulfurization adsorption tower, enter and recycle next time.
10. as claimed in claim 9 for the energy-efficient synthesis desulfurating purification method of activated coke of different flue gas, it is characterized in that: the flue-gas temperature that described first desulfurization fume pipeline imports is 50-100 DEG C, the flue-gas temperature that described second desulfurization fume pipeline imports is more than 100 DEG C.
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| CN103405991B true CN103405991B (en) | 2015-04-08 |
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| CN106994287A (en) * | 2017-05-11 | 2017-08-01 | 国电科学技术研究院 | A kind of system and method for coal fired power plant flue gas dry desulfurizing denitration |
| CN107126811A (en) * | 2017-06-27 | 2017-09-05 | 西安西热锅炉环保工程有限公司 | A kind of desulphurization system based on phase transformation activated coke dry method |
| CN110385029A (en) * | 2018-04-20 | 2019-10-29 | 中国石化工程建设有限公司 | Activated coke flue gas purification system and method |
| CN108607322B (en) * | 2018-05-10 | 2020-12-04 | 中冶长天国际工程有限责任公司 | Multi-working-condition flue gas centralized independent purification treatment system and control method thereof |
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