CN103418360A - Regenerative device and method for desulfurized and denitrified active coke - Google Patents
Regenerative device and method for desulfurized and denitrified active coke Download PDFInfo
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- CN103418360A CN103418360A CN2013103453723A CN201310345372A CN103418360A CN 103418360 A CN103418360 A CN 103418360A CN 2013103453723 A CN2013103453723 A CN 2013103453723A CN 201310345372 A CN201310345372 A CN 201310345372A CN 103418360 A CN103418360 A CN 103418360A
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Abstract
The invention discloses a regenerative device and method for desulfurized and denitrified active coke. The regenerative device comprises a regenerative reactor, wherein the regenerative reactor is composed by the connection of an inlet blocking valve, a feeding bin, a heating bin, a regenerative bin, a precooling bin, a cooling bin, a discharging bin, and an outlet blocking valve in sequence; a heating heat exchanger component is arranged in the heating bin; a precooling heat exchanger component is arranged in the precooling bin; a cooling heat exchanger component is arranged in the cooling bin; a nitrogen carrying bin for inletting ammonia nitrogen gas to improve the desulfurization and denitrification performances of regenerated active coke during regeneration process is arranged between the precooling bin and the cooling bin. The regenerative method adopts the regenerative device to conduct the regeneration of the active coke. According to the invention, more reasonable utilization of energy can be realized in the regeneration process to allow the desulfurization and denitrification performance of the regenerated active coke to obtain further improvement; on-line modification can be conducted on the active coke through the nitrogen carrying bin to keep high desulfurization and denitrification performance of the active coke.
Description
Technical field
The present invention relates to activated coke regeneration techniques field, relate in particular to a kind of desulphurization denitration active coke regeneration device and method.
Background technology
At present in the industrial furnace flue gas desulfurization techniques such as boiler of power plant, smelting iron and steel, active coke desulphurizing combined purifying technique, with its water saving, integrated purifying, non-secondary pollution, reclaim the advantage such as sulphur resource and at home and abroad be applied.After adopting the activated coke adsorption, desulfurization, denitration, lose activity, must be regenerated, activity recovery, then recycle, so the activated coke regeneration workshop section that is absolutely necessary.Activated coke regeneration is divided into washes regeneration and thermal regeneration, because washing regeneration accessory substance is dilute sulfuric acid, utilizes inconvenience, has stronger corrosivity simultaneously, so thermal regeneration is the method extensively adopted at present.
The inventor has applied for that on January 23rd, 2002 name is called the patent of invention of " moving desorptive equipment for activated coke ", and application number is application number 02112580.5, has obtained good effect.The main body of this desorption apparatus mainly consists of heating cabinet and cooling storehouse, adopts the mode of indirect, has solved the regeneration problem of activated coke, has realized the reasonable use of the energy, has higher desorption performance.In June, 2009, the application name is called " movable desorption device of activated coke ", application number 200910057347.9, bringing-up section is sent in the input after heating of the heat transferring medium of activated coke cooling section, cooling for activated coke after gas after heating adopts heat exchanger cooling, the system energy efficiency utilization is not too high, to the regenerator exchange capability of heat, requires high.Existing active coke regenerating equipment is the SO due to activated coke physical absorption in sweetening process at charging aperture
2Easy desorption when low temperature, the hot gas of generation upwards, easily causes corrosion to tower top, the import blocking valve is produced and stops up simultaneously.
Summary of the invention
Deficiency in view of above-mentioned prior art existence, the present invention proposes a kind of problem that can further solve the existing equipment existence, particularly in regenerative process, can realize more rationally utilizing energy desulphurization denitration active coke regeneration device and method that the desulphurization denitration performance of the rear activated coke that makes to regenerate is further enhanced.
The present invention is for achieving the above object, a kind of desulphurization denitration active coke regeneration device provided by the invention, comprise a regeneration reactor, described regeneration reactor is from top to bottom by the import blocking valve, feeding warehouse, heating cabinet, the regeneration storehouse, pre-cooled storehouse, cooling storehouse, discharging bin and outlet blocking valve are linked in sequence, be provided with the heating heat exchanger assembly for described heating cabinet is heated in described heating cabinet, in described pre-cooled storehouse, be provided with for cooling pre-cooled heat exchanger assembly is carried out in described pre-cooled storehouse, in described cooling storehouse, be provided with for cooling cooling heat exchanger assembly is carried out in described cooling storehouse, also be provided with one for introduce year nitrogen storehouse that ammonia nitrogen gas improves the desulphurization denitration performance of the rear activated coke of regeneration in regenerative process between described pre-cooled storehouse and cooling storehouse.
As a further improvement on the present invention, described heating cabinet and described pre-cooled storehouse are by the heat circulating system that is connected to form of heating heat exchanger assembly, circulating fan, heater and pre-cooled heat exchanger assembly, the heat medium delivery outlet that described heat circulating system is described heating heat exchanger assembly is connected with the cooling medium input port conducting of described pre-cooled heat exchanger assembly by circulating fan, and the cooling medium delivery outlet of described pre-cooled heat exchanger assembly is connected with the heat medium input port conducting of described heating heat exchanger assembly after heating by heater.
As a further improvement on the present invention, described heater is electric heater or hot-blast stove.
As a further improvement on the present invention, be provided with the import of nitrogen carrier gas body on described year nitrogen storehouse, ammonia valve and nitrogen valve have been arranged in parallel in the import of described nitrogen carrier gas body, the import of described nitrogen carrier gas body is connected with the ammonia gas circuit by the ammonia valve, and the import of described nitrogen carrier gas body is connected with the nitrogen gas circuit by the nitrogen valve.
As a further improvement on the present invention, at described year, in the nitrogen storehouse, be provided with the first air guide mechanism, described the first air guide mechanism and described nitrogen carrier gas body inlet guide lead to and connect.
As a further improvement on the present invention, be provided with the second air guide mechanism and regeneration gas outlet in described regeneration storehouse, described the second air guide mechanism and described regeneration gas outlet guide lead to and connect, and also are provided with one in described regeneration gas outlet and reclaim and control the regeneration blower fan of described regeneration reactor internal pressure parameter for desorption gas.
As a further improvement on the present invention, described heating heat exchanger assembly, described pre-cooled heat exchanger assembly and/or described cooling heat exchanger assembly are tubular heat exchanger structure or coil exchanger structure.
As a further improvement on the present invention, in described feeding warehouse, be positioned at the feeding warehouse entrance under be provided with distributing device, be provided with the first nitrogen blowing mouth and the 3rd air guide mechanism for importing nitrogen in the bottom of described feeding warehouse, described the 3rd air guide mechanism is connected with described the first nitrogen blowing mouth conducting.
As a further improvement on the present invention, described discharging bin top is provided with the second nitrogen blowing mouth and the 4th air guide mechanism for importing nitrogen, and described the 4th air guide mechanism is connected with described the second nitrogen blowing mouth conducting.
As a further improvement on the present invention, described discharging bin comprises drapery panel, cloth cone and reclaiming cone bucket, and described reclaiming cone bucket is microscler cone, and cone angle is greater than 60 °, the drift angle of described cloth cone is less than 60 °, between described cloth cone and reclaiming cone bucket, the drapery panel that inclination angle is 65 °～70 ° is set.
In addition, the present invention also provides a kind of desulphurization denitration reactive coke regeneration method, and it comprises the steps: to adopt above-mentioned desulphurization denitration active coke regeneration device to carry out the regeneration of activated coke, comprises the steps:
Activated coke after step 1, desulphurization denitration enters described feeding warehouse by described import blocking valve, and process evenly and reposefully enters described heating cabinet over against the activated coke of the described distributing device of feeding warehouse entrance; Meanwhile, purge nitrogen and import in described the 3rd air guide mechanism from the described first nitrogen blowing mouth of described feeding warehouse bottom, by described the 3rd air guide mechanism output, make the environment of regeneration reactor top maintenance nitrogen, simultaneously by the SO of physical absorption
2, NOx and ammonia be blown into described heating cabinet, the NOx of physical absorption at high temperature reduced, simultaneously effectively corrosion and the pollution of minimizing equipment.
The activated coke dependence gravity of step 3, process regeneration continues to enter pre-cooled storehouse downwards and carries out pre-cooled, it is cooling that in pre-cooled storehouse, activated coke is recycled the cycle heat exchange medium that blower fan sends here, described cycle heat exchange medium is inert gas or air, from the heat medium delivery outlet, the temperature out the time is 220-270 ℃ to described cycle heat exchange medium, is preferably 250 ℃.Described cycle heat exchange medium enters in pre-cooled heat exchanger assembly by circulating fan and cooling medium input port, the activated coke in pre-cooled storehouse is carried out cooling, uses pre-cooled storehouse activated coke temperature at 280-330 ℃, is preferably 300 ℃ of left and right.The cycle heat exchange medium is heated simultaneously, then enter heater by the cooling medium delivery outlet, the cycle heat exchange medium carries out makeup energy by heater, the cycle heat exchange medium is heated to 400-450 ℃ and enters heating cabinet again in heater, thereby described heating cabinet and described pre-cooled storehouse are by the heat circulating system that is connected to form of heating heat exchanger assembly, circulating fan, heater and pre-cooled heat exchanger assembly.
Step 5, from carrying an activated coke of discharging in the nitrogen storehouse, enter cooling storehouse, the activated coke medium that is cooled is cooled to 100-150 ℃, is preferably 120 ℃ of left and right.Discharge regeneration reactor through discharging bin, at discharging bin, adopt nitrogen blowing, make the activated coke desorption clean, further block entering of oxygen simultaneously.
The beneficial effect of desulphurization denitration active coke regeneration device of the present invention is as follows:
1. desulphurization denitration active coke regeneration device of the present invention is provided with and carries the nitrogen storehouse, realized the online modification of activated coke, keep the high desulphurization denitration performance of activated coke, pass into the ammonia nitrogen mist carried in the nitrogen storehouse and further block entering of oxygen, effectively avoid the ablation of activated coke, and effectively stop the regeneration desorption gas to flow downward, thereby the desorption gas that makes to regenerate extracts more thorough.
2. the temperature that the ammonia nitrogen gas passed in the nitrogen storehouse is carried in desulphurization denitration active coke regeneration device of the present invention setting than from pre-cooled storehouse activated coke temperature out much lower, play the effect of further cooling activated coke, reduced the temperature that enters cooling storehouse activated coke, cushion the temperature rate of change in regenerator, improved the stability of the operation of device.
3. the first air guide mechanism arranged in year nitrogen storehouse of desulphurization denitration active coke regeneration device of the present invention, gas distribution is more even, and the activated coke surface uniform carries nitrogen, and guarantees that activated coke is smooth and easy and flow downward, avoid, because activated coke is piled up the local overheating phenomenon caused, improving the security performance of equipment.
4. desulphurization denitration active coke regeneration device of the present invention is by the pre-cooled storehouse and the cooling storehouse that cooling section are divided into to two temperature grades, effectively improve the heat exchange logarithm temperature difference of heating cabinet, heightened heat transfer intensity, make device usefulness higher, using energy source is more reasonable, and heating energy source is convenient, flexible.
5. year nitrogen storehouse of desulphurization denitration active coke regeneration device of the present invention provides the mist of ammonia and nitrogen, this mist upwards flows under the effect of regeneration blower fan, in pre-cooled storehouse and regeneration storehouse, activated coke is carried to nitrogen, effectively increase nitrogen-containing functional group in activated coke, ammonia also participates in regenerative response simultaneously, can further reduce the growing amount of CO.
6. desulphurization denitration active coke regeneration device of the present invention has been set up the 3rd air guide mechanism and the 4th air guide mechanism, passing into nitrogen at feeding warehouse and discharging bin by the first nitrogen blowing mouth and the second nitrogen blowing mouth is purged, in the intermediate regeneration storehouse by described the second air guide mechanism, described regeneration gas and described regeneration exhaust fan, regeneration gas is extracted thoroughly, avoided the corrosion of low-temperature zone, effectively increase service life of the present invention, simultaneously can also be by regeneration air-blower control tower internal pressure parameter, optimize operation, reach efficient desorption.
7. desulphurization denitration reactive coke regeneration method of the present invention can carry out online modification to activated coke by carrying the nitrogen storehouse, keep the high desulphurization denitration performance of activated coke, the regeneration gas in draw-out device thoroughly also, avoid the corrosion of device simultaneously, has higher usefulness.
The accompanying drawing explanation
The structural representation of Fig. 1 embodiment mono-desulphurization denitration active coke regeneration device.
The main TV structure schematic diagram of the distributing device that Fig. 2 is the present embodiment feeding warehouse.
The plan structure schematic diagram of the distributing device that Fig. 3 is the present embodiment feeding warehouse.
The structural representation that Fig. 4 is the present embodiment heat exchanger assembly.
The structural representation that Fig. 5 is other embodiment heat exchanger assemblies.
The structural representation that Fig. 6 is the another kind of heat exchanger assembly of other embodiment.
The main TV structure schematic diagram that Fig. 7 is the present embodiment air guide mechanism.
The plan structure schematic diagram that Fig. 8 is the present embodiment air guide mechanism.
The structural representation that Fig. 9 is the present embodiment discharging bin.
The A-A schematic cross-section that Figure 10 is Fig. 9.
The structural representation that Figure 11 is embodiment bis-desulphurization denitration active coke regeneration devices.
Primary clustering symbol description in figure:
1. import blocking valve, 2. feeding warehouse, 201. distributing device, 202. the 3rd air guide mechanism, 203. the first nitrogen blowing mouth, 3. heating cabinet, 301. heat medium delivery outlet, 302. heat medium input port, 303. heating heat exchanger assembly, 4. heater, 11. regeneration storehouse, 1101. regeneration gas outlet, 1102. the second air guide mechanism, 12. regeneration blower fan, 5. pre-cooled storehouse, 501. cooling medium delivery outlet, 502. cooling medium input port, 503. pre-cooled heat exchanger assembly, 6. circulating fan, 7. carry the nitrogen storehouse, 701. nitrogen carrier gas body import, 702. the first air guide mechanism, 703. ammonia valve, 704. nitrogen valve, 8. cooling storehouse, 803. cooling heat exchanger assembly, 13. cooling blower, 9. discharging bin, 901. the second nitrogen blowing mouth, 902. the 4th air guide mechanism, 903. drapery panel, 904. cloth cone, 905. reclaiming cone bucket, 10 outlet blocking valves, A1. heat exchanger tube, A2. left collection chamber, A3. right collection chamber.
The specific embodiment
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Embodiment mono-:
The structural representation of Fig. 1 embodiment mono-desulphurization denitration active coke regeneration device.As shown in Figure 1, a kind of desulphurization denitration active coke regeneration device that the present embodiment proposes, comprise a regeneration reactor, described regeneration reactor is from top to bottom by import blocking valve 1, feeding warehouse 2, heating cabinet 3, regeneration storehouse 11, pre-cooled storehouse 5, cooling storehouse 8, discharging bin 9 and outlet blocking valve 10 are linked in sequence, be provided with the heating heat exchanger assembly 303 for heating cabinet 3 is heated in heating cabinet 3, in pre-cooled storehouse 5, be provided with for cooling pre-cooled heat exchanger assembly 503 is carried out in pre-cooled storehouse 5, in cooling storehouse 8, be provided with for cooling cooling heat exchanger assembly 803 is carried out in cooling storehouse 8, also be provided with one for introduce year nitrogen storehouse 7 that ammonia nitrogen gas improves the desulphurization denitration performance of the rear activated coke of regeneration in regenerative process between pre-cooled storehouse 5 and cooling storehouse 8.
Concrete, heating cabinet 3 and pre-cooled storehouse 5 are by the heat circulating system that is connected to form of heating heat exchanger assembly 303, circulating fan 6, heater 4 and pre-cooled heat exchanger assembly 503, the heat medium delivery outlet 301 that described heat circulating system is heating heat exchanger assembly 303 is connected with cooling medium input port 502 conductings of pre-cooled heat exchanger assembly 503 by circulating fan 6, and the cooling medium delivery outlet 501 of pre-cooled heat exchanger assembly 503 is connected with heat medium input port 302 conductings of heating heat exchanger assembly 303 by heater 4 heating are rear.
Exemplary, as shown in Figure 1, the heater 4 of the present embodiment adopts electric heater.Carry on nitrogen storehouse 7 and be provided with nitrogen carrier gas body import 701, ammonia valve 703 and nitrogen valve 704 have been arranged in parallel in nitrogen carrier gas body import 701, nitrogen carrier gas body import 701 is connected with the ammonia gas circuit by ammonia valve 703, and nitrogen carrier gas body import 701 is connected with the nitrogen gas circuit by nitrogen valve 704.
Shown in Fig. 1, be provided with the first air guide mechanism 702, the first air guide mechanisms 702 and be connected with nitrogen carrier gas body import 701 conductings in carrying nitrogen storehouse 7.Be provided with the second air guide mechanism 1102 and regeneration gas outlet 1101 in regeneration storehouse 11, the second air guide mechanism 1102 exports 1101 conductings with regeneration gas and is connected, and also is provided with one in regeneration gas outlet 1101 and reclaims and control the regeneration blower fan 12 of described regeneration reactor internal pressure parameter for desorption gas.In feeding warehouse 2, be positioned at the feeding warehouse entrance under be provided with distributing device 201, the first nitrogen blowing mouth 203 and the 3rd air guide mechanism 202, the three air guide mechanisms 202 that in the bottom of feeding warehouse 2, are provided with for importing nitrogen are connected with the first nitrogen blowing mouth 203 conductings.The second nitrogen blowing mouth 901 and the 4th air guide mechanism 902, the four air guide mechanisms 902 that discharging bin 9 tops are provided with for importing nitrogen are connected with the second nitrogen blowing mouth 901 conductings.
The main TV structure schematic diagram that Fig. 7 is the present embodiment air guide mechanism, the plan structure schematic diagram that Fig. 8 is the present embodiment air guide mechanism.As shown in Figure 7 and Figure 8, the first air guide mechanism 702, the second air guide mechanism 1102, the 3rd air guide mechanism 202 and the 4th air guide mechanism 902 of the present embodiment all adopt the air guide mechanism of structure as shown in Figure 6 and Figure 7, described air guide mechanism forms by cone bucket and the beneath pipe passage of cone bucket of a plurality of squares, any two formed angles of adjacent cone headwall are 60～80 °, avoid the accumulation of activated coke.
Exemplary, as shown in Figures 2 and 3, the distributing device 201 on feeding warehouse 2 tops, steel plate that can be identical with four downward inclination angles by a horizontal steel plate and the vertical steel plate at front and back belt rectangle hole are welded, and with the vertical steel plate at rectangle hole, are welded on the regeneration reactor housing.
Exemplary, the structural representation that Fig. 4 is the present embodiment heat exchanger assembly.As shown in Figure 4, the heating heat exchanger assembly 303 of the present embodiment, pre-cooled heat exchanger assembly 503 and cooling heat exchanger assembly 803 all adopt tubular heat exchanger structure as shown in Figure 3, activated coke is walked tube side or shell from top to bottom, be provided with left collection chamber A2 and right collection chamber A3 at heat exchanger tube A1 two ends, many heat exchanger tube A1 are being arranged on same vertical plane, be convenient to activated coke and pass through, reduce the wearing and tearing of activated coke.In the present embodiment, the heat exchanger assembly in regeneration reactor inside, both can all adopt corrosion resistant stainless steel to make, and also can be only the heat exchanger tube in high temperature section be adopted to stainless steel and other parts adopt carbon steels to make.
Certainly, in other embodiment in, described heating heat exchanger assembly, described pre-cooled heat exchanger assembly and/or described cooling heat exchanger assembly can also adopt heat exchanger assembly as shown in Figure 5 and Figure 6, as adopted the coil exchanger structure.
The structural representation that Fig. 9 is the present embodiment discharging bin.As shown in Figure 9, in the present embodiment, be provided with the 4th air guide mechanism 902, cloth cone 904, drapery panel 903 and reclaiming cone bucket 905 in discharging bin 9, reclaiming cone bucket 905 is microscler cone, cone angle is greater than 60 °, the drift angle of cloth cone 904 is less than 60 °, between cloth cone 904 and reclaiming cone bucket 905, the drapery panel 903 that inclination angle is 65 °～70 ° is set, realize activated coke Uniform Flow in regeneration reactor, and be provided with the second nitrogen blowing mouth 901, effectively reduce the corrosion of low-temperature zone equipment, improve the physical life of equipment.
The present embodiment also proposes a kind ofly to utilize above-mentioned desulphurization denitration active coke regeneration device to carry out the method for desulphurization denitration activated coke regeneration, and it comprises the steps:
Activated coke after step 1, desulphurization denitration enters feeding warehouse 2 by import blocking valve 1, and process evenly and reposefully enters heating cabinet 3 over against the activated coke of the distributing device 201 of feeding warehouse entrance; Meanwhile, purge nitrogen and import in the 3rd air guide mechanism 202 from the first nitrogen blowing mouth 203 of feeding warehouse 2 bottoms, by the 3rd air guide mechanism 202 outputs, make the environment of regeneration reactor top maintenance nitrogen, simultaneously by the SO of physical absorption
2, NOx and ammonia be blown into heating cabinet 3, and the NOx of physical absorption is at high temperature reduced, and reduces corrosion and the pollution of device.
The activated coke dependence gravity of step 3, process regeneration continues to enter pre-cooled storehouse 5 downwards and carries out pre-cooled, it is cooling that in pre-cooled storehouse 5, activated coke is recycled the cycle heat exchange medium that blower fan 6 sends here, the cycle heat exchange medium is inert gas or air, from heat medium delivery outlet 301, the temperature out the time is 220-270 ℃ to described cycle heat exchange medium, specifically can be 250 ℃.Described cycle heat exchange medium enters in pre-cooled heat exchanger assembly 503 by circulating fan 6 and cooling medium input port 502, the activated coke in pre-cooled storehouse 5 is carried out cooling, uses the activated coke temperature in pre-cooled storehouse 5 at 280-330 ℃, specifically can be 300 ℃.The cycle heat exchange medium is heated simultaneously, then enter heater 4 by cooling medium delivery outlet 501, the cycle heat exchange medium carries out makeup energy by heater 4, the cycle heat exchange medium is heated to 400-450 ℃ and enters heating cabinet again in heater 4, thereby heating cabinet 3 and pre-cooled storehouse 5 are by the heat circulating system that is connected to form of heating heat exchanger assembly 303, circulating fan 6, heater 4 and pre-cooled heat exchanger assembly 503.
Step 5, from carrying the activated coke of discharging in nitrogen storehouse 7, enter cooling storehouse 8, the activated coke medium that is cooled is cooled to 100-150 ℃, specifically can be 120 ℃, discharge regeneration reactor through discharging bin 9, adopt nitrogen blowing at discharging bin 9, make the activated coke desorption clean, further block entering of oxygen simultaneously, so far can complete whole regeneration flow process.
Exemplary, in the present embodiment, the desulphurization denitration active coke regeneration device adopts electric heater as the desorption thermal source, and the cycle heat exchange medium in heat circulating system is opened the gas that can adopt oxygen content to be less than 3%, also can adopt inert gas or air etc.Activated coke enters cooling storehouse 8 and continues coolingly under the effect of cooling heat exchanger assembly 803 and cooling blower 13, then through discharging bin 9, discharges, and the cooling medium that cooling storehouse 8 adopts can inert gas or air.
In regenerative process, feeding warehouse 2 and discharging bin 9 adopt nitrogen blowing, the sealing of finishing device simultaneously.The desulphurization denitration active coke regeneration device is when operation, can regulate and carry the concentration that nitrogen storehouse 7 enters flow and the ammonia nitrogen of ammonia nitrogen mist by ammonia valve 703 and nitrogen valve 704, performance to activated coke regeneration is regulated, realize the online modification of activated coke, kept the high desulphurization denitration performance of activated coke.Activated coke enters from import blocking valve 1, after regeneration reactor, from outlet blocking valve 10, flows out, and completes regeneration and processes, and continues on for desulphurization denitration.Wherein, can also realize the accurate control of regeneration temperature parameter by the adjusting to cycle heat exchange rate-of flow and temperature, by regeneration air-blower control tower internal pressure parameter, optimize operation simultaneously, reach efficient desorption.
Embodiment bis-:
The structural representation that Figure 11 is embodiment bis-desulphurization denitration active coke regeneration devices.As shown in figure 11, the present embodiment and embodiment mono-difference be, the desulphurization denitration active coke regeneration device of the present embodiment adopts hot-blast stove as the desorption thermal source, the electric heater that heater 4 of the present embodiment adopts in hot-blast stove alternate embodiments one.The present embodiment is adjusted heater, combustion air using a cooling-air part as hot-blast stove, produce high-temperature hot-air, the heat transferring medium exported out with refrigerating gas mixes, after controlling 500 ℃ of left and right of temperature, enter heating cabinet, activated coke is heated, reach desorption temperature and circulated, heat transferring medium is the flue gas of oxygen content below 3%.Other concrete structures and renovation process can, with reference to the description in embodiment mono-, repeat no more herein.
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. a desulphurization denitration active coke regeneration device, comprise a regeneration reactor, it is characterized in that: described regeneration reactor is from top to bottom by the import blocking valve, feeding warehouse, heating cabinet, the regeneration storehouse, pre-cooled storehouse, cooling storehouse, discharging bin and outlet blocking valve are linked in sequence, be provided with the heating heat exchanger assembly for described heating cabinet is heated in described heating cabinet, in described pre-cooled storehouse, be provided with for cooling pre-cooled heat exchanger assembly is carried out in described pre-cooled storehouse, in described cooling storehouse, be provided with for cooling cooling heat exchanger assembly is carried out in described cooling storehouse, also be provided with one for introduce year nitrogen storehouse that ammonia nitrogen gas improves the desulphurization denitration performance of the rear activated coke of regeneration in regenerative process between described pre-cooled storehouse and cooling storehouse.
2. desulphurization denitration active coke regeneration device as claimed in claim 1, it is characterized in that: described heating cabinet and described pre-cooled storehouse are by the heating heat exchanger assembly, circulating fan, heater and pre-cooled heat exchanger assembly be connected to form a heat circulating system, the heat medium delivery outlet that described heat circulating system is described heating heat exchanger assembly is connected with the cooling medium input port conducting of described pre-cooled heat exchanger assembly by circulating fan, the cooling medium delivery outlet of described pre-cooled heat exchanger assembly is connected with the heat medium input port conducting of described heating heat exchanger assembly after heating by heater.
3. desulphurization denitration active coke regeneration device as claimed in claim 2, it is characterized in that: described heater is electric heater or hot-blast stove.
4. desulphurization denitration active coke regeneration device as claimed in claim 1, it is characterized in that: be provided with the import of nitrogen carrier gas body on described year nitrogen storehouse, ammonia valve and nitrogen valve have been arranged in parallel in the import of described nitrogen carrier gas body, the import of described nitrogen carrier gas body is connected with the ammonia gas circuit by the ammonia valve, and the import of described nitrogen carrier gas body is connected with the nitrogen gas circuit by the nitrogen valve.
5. desulphurization denitration active coke regeneration device as claimed in claim 4 is characterized in that: be provided with the first air guide mechanism at described year in the nitrogen storehouse, described the first air guide mechanism and described nitrogen carrier gas body inlet guide lead to and connect.
6. desulphurization denitration active coke regeneration device as claimed in claim 1, it is characterized in that: be provided with the second air guide mechanism and regeneration gas outlet in described regeneration storehouse, described the second air guide mechanism and described regeneration gas outlet guide lead to and connect, and also are provided with one in described regeneration gas outlet and reclaim and control the regeneration blower fan of described regeneration reactor internal pressure parameter for desorption gas.
7. desulphurization denitration active coke regeneration device as claimed in claim 1, it is characterized in that: described heating heat exchanger assembly, described pre-cooled heat exchanger assembly and/or described cooling heat exchanger assembly are tubular heat exchanger structure or coil exchanger structure.
8. desulphurization denitration active coke regeneration device as claimed in claim 1, it is characterized in that: in described feeding warehouse, be positioned at the feeding warehouse entrance under be provided with distributing device, be provided with the first nitrogen blowing mouth and the 3rd air guide mechanism for importing nitrogen in the bottom of described feeding warehouse, described the 3rd air guide mechanism is connected with described the first nitrogen blowing mouth conducting.
9. desulphurization denitration active coke regeneration device as claimed in claim 1, it is characterized in that: described discharging bin top is provided with the second nitrogen blowing mouth and the 4th air guide mechanism for importing nitrogen, and described the 4th air guide mechanism is connected with described the second nitrogen blowing mouth conducting.
10. a desulphurization denitration reactive coke regeneration method, is characterized in that: adopt the described desulphurization denitration active coke regeneration device of claim as arbitrary as claim 1 to 9 to carry out the regeneration of activated coke, comprise the steps:
Activated coke after step 1, desulphurization denitration enters described feeding warehouse by described import blocking valve, and process evenly and reposefully enters described heating cabinet over against the activated coke of the described distributing device of feeding warehouse entrance; Meanwhile, purge nitrogen and import in described the 3rd air guide mechanism from the described first nitrogen blowing mouth of described feeding warehouse bottom, make the environment of regeneration reactor top maintenance nitrogen, simultaneously by the SO of physical absorption
2, NOx and ammonia be blown into described heating cabinet, and the NOx of physical absorption is at high temperature reduced;
Step 2, the activated coke that enters described heating cabinet are heated to 400-450 ℃, then enter described regeneration storehouse, the gas that the desorbing gas produced in the regeneration of described heating cabinet and described regeneration storehouse produces is extracted out from the regeneration gas outlet in regeneration storehouse by the regeneration blower fan, sends into byproduct for treatment workshop section;
Step 3, through the activated coke of regenerating, relying on gravity to continue to enter pre-cooled storehouse downwards carries out pre-cooled, it is cooling that in pre-cooled storehouse, activated coke is recycled the cycle heat exchange medium that blower fan sends here, described cycle heat exchange medium is inert gas or air, from the heat medium delivery outlet, the temperature out the time is 220-270 ℃ to described cycle heat exchange medium, described cycle heat exchange medium enters in pre-cooled heat exchanger assembly by circulating fan and cooling medium input port, to the activated coke in pre-cooled storehouse, carry out cooling, use pre-cooled storehouse activated coke temperature at 280-330 ℃, the cycle heat exchange medium is heated simultaneously, then enter heater by the cooling medium delivery outlet, the cycle heat exchange medium carries out makeup energy by heater, the cycle heat exchange medium is heated to 400-450 ℃ and enters heating cabinet again in heater, thereby described heating cabinet and described pre-cooled storehouse are by the heating heat exchanger assembly, circulating fan, heater and pre-cooled heat exchanger assembly be connected to form a heat circulating system,
Step 4, the activated coke after pre-cooled enter carries the nitrogen storehouse, pass into the ammonia nitrogen mist containing the 3-5% ammonia by the import of nitrogen carrier gas body, described mist upwards flows under the effect of regeneration blower fan, in pre-cooled storehouse and regeneration storehouse, activated coke is carried to nitrogen, increase nitrogen-containing functional group in activated coke, ammonia also participates in regenerative response simultaneously;
Step 5, the activated coke of discharging from year nitrogen storehouse enter cooling storehouse, the activated coke medium that is cooled is cooled to 100-150 ℃, through discharging bin, discharges regeneration reactor, at discharging bin, adopts nitrogen blowing, make the activated coke desorption clean, further block entering of oxygen simultaneously.
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| CN201310345372.3A CN103418360B (en) | 2013-08-08 | 2013-08-08 | A kind of desulphurization denitration active coke regeneration device and method |
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| CN201310345372.3A Active CN103418360B (en) | 2013-08-08 | 2013-08-08 | A kind of desulphurization denitration active coke regeneration device and method |
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| CN103785367A (en) * | 2014-02-27 | 2014-05-14 | 上海龙净环保科技工程有限公司 | Annular dividing wall type activated coke purification moving bed regeneration tower and activated coke regeneration method |
| CN103920540A (en) * | 2014-04-17 | 2014-07-16 | 宁波大学 | Method and device for regenerating SCR (Selective Catalytic Reduction) denitration catalyst applied to aftertreatment of diesel engine exhaust |
| CN105771946A (en) * | 2016-05-16 | 2016-07-20 | 上海克硫环保科技股份有限公司 | Regeneration system and method for activated coke |
| CN106039927A (en) * | 2016-07-13 | 2016-10-26 | 国电科学技术研究院 | Collecting device for desorption gas in movable activated coke bed layer |
| CN108745331A (en) * | 2018-07-12 | 2018-11-06 | 中冶长天国际工程有限责任公司 | A kind of novel absorbent charcoal Analytic Tower and activated carbon parsing technique |
| CN108855247A (en) * | 2018-08-09 | 2018-11-23 | 国电环境保护研究院有限公司 | A kind of regeneration method and device of the carbon base catalyst suitable for flue gas purification system |
| CN109174070A (en) * | 2018-10-16 | 2019-01-11 | 中冶长天国际工程有限责任公司 | A kind of novel absorbent charcoal Analytic Tower and active carbon analytic method |
| CN109499556A (en) * | 2018-10-16 | 2019-03-22 | 中冶长天国际工程有限责任公司 | A kind of good antiscale property active carbon Analytic Tower and its analytic method |
| CN110624525A (en) * | 2018-06-21 | 2019-12-31 | 中国石化工程建设有限公司 | Active coke regeneration system and method |
| CN110743519A (en) * | 2019-11-11 | 2020-02-04 | 中国科学院山西煤炭化学研究所 | Desulfurization and denitrification activated carbon/carbon-based catalyst regeneration equipment and method |
| CN111569852A (en) * | 2020-06-03 | 2020-08-25 | 中冶焦耐(大连)工程技术有限公司 | Active coke desulfurization and denitrification desorption device capable of efficiently transferring heat |
| CN113651325A (en) * | 2021-08-16 | 2021-11-16 | 宁夏宁疆疆泰炭材料科技有限公司 | Production equipment and process for manufacturing desulfurization and denitrification active coke by using multi-stage furnace |
| CN114307522A (en) * | 2022-01-05 | 2022-04-12 | 马鞍山钢铁股份有限公司 | Method for controlling overtemperature of coke oven flue gas active coke desulfurization and denitrification system |
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| CN103785367B (en) * | 2014-02-27 | 2016-02-10 | 上海龙净环保科技工程有限公司 | Annular dividing wall type activated coke purification moving bed regenerator and reactive coke regeneration method |
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| CN103920540A (en) * | 2014-04-17 | 2014-07-16 | 宁波大学 | Method and device for regenerating SCR (Selective Catalytic Reduction) denitration catalyst applied to aftertreatment of diesel engine exhaust |
| CN103920540B (en) * | 2014-04-17 | 2015-11-25 | 宁波大学 | The renovation process of SCR denitration and device in a kind of diesel exhaust aftertreatment |
| CN105771946A (en) * | 2016-05-16 | 2016-07-20 | 上海克硫环保科技股份有限公司 | Regeneration system and method for activated coke |
| CN106039927A (en) * | 2016-07-13 | 2016-10-26 | 国电科学技术研究院 | Collecting device for desorption gas in movable activated coke bed layer |
| CN106039927B (en) * | 2016-07-13 | 2018-07-24 | 国电科学技术研究院 | The collection device of desorption gas in mobile activated coke bed |
| CN110624525A (en) * | 2018-06-21 | 2019-12-31 | 中国石化工程建设有限公司 | Active coke regeneration system and method |
| CN108745331A (en) * | 2018-07-12 | 2018-11-06 | 中冶长天国际工程有限责任公司 | A kind of novel absorbent charcoal Analytic Tower and activated carbon parsing technique |
| CN108745331B (en) * | 2018-07-12 | 2024-02-13 | 中冶长天国际工程有限责任公司 | Novel activated carbon analysis tower and activated carbon analysis process |
| CN108855247A (en) * | 2018-08-09 | 2018-11-23 | 国电环境保护研究院有限公司 | A kind of regeneration method and device of the carbon base catalyst suitable for flue gas purification system |
| CN109499556A (en) * | 2018-10-16 | 2019-03-22 | 中冶长天国际工程有限责任公司 | A kind of good antiscale property active carbon Analytic Tower and its analytic method |
| CN109174070B (en) * | 2018-10-16 | 2021-08-31 | 中冶长天国际工程有限责任公司 | Activated carbon analysis tower and activated carbon analysis method |
| CN109174070A (en) * | 2018-10-16 | 2019-01-11 | 中冶长天国际工程有限责任公司 | A kind of novel absorbent charcoal Analytic Tower and active carbon analytic method |
| CN110743519A (en) * | 2019-11-11 | 2020-02-04 | 中国科学院山西煤炭化学研究所 | Desulfurization and denitrification activated carbon/carbon-based catalyst regeneration equipment and method |
| CN111569852A (en) * | 2020-06-03 | 2020-08-25 | 中冶焦耐(大连)工程技术有限公司 | Active coke desulfurization and denitrification desorption device capable of efficiently transferring heat |
| CN113651325A (en) * | 2021-08-16 | 2021-11-16 | 宁夏宁疆疆泰炭材料科技有限公司 | Production equipment and process for manufacturing desulfurization and denitrification active coke by using multi-stage furnace |
| CN113651325B (en) * | 2021-08-16 | 2023-12-08 | 宁夏宁疆疆泰炭材料科技有限公司 | Production equipment and process for manufacturing desulfurization and denitrification active coke by multi-stage furnace |
| CN114307522A (en) * | 2022-01-05 | 2022-04-12 | 马鞍山钢铁股份有限公司 | Method for controlling overtemperature of coke oven flue gas active coke desulfurization and denitrification system |
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