CN115178089B - Purifying and regenerating one-tower carbon-based catalyst flue gas treatment device - Google Patents
Purifying and regenerating one-tower carbon-based catalyst flue gas treatment device Download PDFInfo
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- CN115178089B CN115178089B CN202210960985.7A CN202210960985A CN115178089B CN 115178089 B CN115178089 B CN 115178089B CN 202210960985 A CN202210960985 A CN 202210960985A CN 115178089 B CN115178089 B CN 115178089B
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- flue gas
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 239000003546 flue gas Substances 0.000 title claims abstract description 80
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 73
- 239000003054 catalyst Substances 0.000 title claims abstract description 73
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 36
- 230000008929 regeneration Effects 0.000 claims abstract description 56
- 238000011069 regeneration method Methods 0.000 claims abstract description 56
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000000746 purification Methods 0.000 claims abstract description 35
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000004064 recycling Methods 0.000 claims abstract description 6
- 238000001179 sorption measurement Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 51
- 238000010438 heat treatment Methods 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 230000002776 aggregation Effects 0.000 claims 1
- 238000004220 aggregation Methods 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 claims 1
- 238000012216 screening Methods 0.000 claims 1
- 239000013589 supplement Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 150000001721 carbon Chemical class 0.000 abstract description 2
- 238000009827 uniform distribution Methods 0.000 abstract description 2
- 238000006477 desulfuration reaction Methods 0.000 description 10
- 230000023556 desulfurization Effects 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 7
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8637—Simultaneously removing sulfur oxides and nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8696—Controlling the catalytic process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
- B01D53/885—Devices in general for catalytic purification of waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
Abstract
The invention provides a purifying and regenerating one-tower carbon-based catalyst flue gas treatment device, which realizes purifying and regenerating functions of a carbon-based catalyst in one tower and can save the occupied area of a system during construction; the bottom of the purifying section and the top of the regenerating section are not required to be provided with rotary valves, the regeneration of the adsorption saturated carbon-based catalyst and the recycling of the regenerated carbon-based catalyst can be completed by only one conveyor, the configuration quantity of the rotary valves and the conveyors is reduced, and the construction cost and the operation failure rate of the system are reduced; nitrogen is fed into two ends of the conveyor, so that the carbon-based catalyst is cooled in the moving process of the conveyor, the design of a cooling section is omitted from a regeneration section of the flue gas purification regeneration tower, the design of the flue gas purification regeneration tower is simplified, and the equipment manufacturing cost and time are saved; the carbon-based catalyst enters the tower after being buffered by the blanking member at the inlet section of the purifying section, so that the impact of material blanking is reduced, the breakage rate is reduced, the carbon-based catalyst is blanked from conical sleeves at different layers of the blanking member, and the uniform distribution of materials in the tower is facilitated.
Description
Technical Field
The invention relates to the field of flue gas pollutant treatment, in particular to a purifying and regenerating one-tower carbon-based catalyst flue gas treatment device.
Background
The carbon-based catalytic desulfurization and denitrification technology is a dry flue gas desulfurization and denitrification technology, has the advantages of water conservation, basically no wastewater discharge, less equipment corrosion, reduced smoke plume visibility (improved environment impression), high desulfurization efficiency, no gypsum rain generation, high additional value recycling of desulfurization byproducts and the like, and is a sulfur, nitrate and dust integrated dry flue gas pollutant removal technology with great potential. The core equipment of the technology mainly comprises a desulfurization and denitrification tower and a regeneration tower, wherein the desulfurization and denitrification tower has the integrated functions of desulfurization, denitrification and dust removal, and the regeneration tower comprises a heating section and a cooling section to complete the heating regeneration and the cooling recycling of the carbon-based catalyst. In addition, the two towers are arranged to occupy the space respectively, two sets of conveyors are also arranged to realize that the carbon-based catalyst saturated by adsorption is conveyed to the regeneration tower for regeneration and the regenerated carbon-based catalyst is conveyed to the desulfurization and denitrification tower for reuse, and rotary valves are arranged at the top and the bottom of the two towers for loading and unloading. The two towers have complex process structure, high manufacturing and installation cost, long production period and more auxiliary equipment to be configured, the economy of system construction and the reliability of operation are affected, and the time and the cost of system maintenance are increased.
Accordingly, there is a need to provide a flue gas treatment device for purifying and regenerating a tower of carbon-based catalyst that solves the above-mentioned problems.
Disclosure of Invention
Aiming at a series of problems brought by independent design, manufacture, installation, operation and maintenance of a desulfurization and denitrification tower and a regeneration tower of core equipment in a desulfurization and denitrification technology of a carbon-based catalytic method, the invention provides a flue gas treatment device and a flue gas treatment process for purifying and regenerating a carbon-based catalyst, which simplify the design of the device, reduce the manufacturing cost and time of the equipment, reduce the occupied area of system arrangement, optimize the number of auxiliary equipment configured by two towers, reduce the maintenance cost of the system and ensure the operation safety of the system.
In order to solve the technical problems, the invention provides a purifying and regenerating one-tower carbon-based catalyst flue gas treatment device which consists of a flue gas purifying and regenerating tower, a conveyor, a nitrogen fan, an electric regulating valve, an electric heater, a vibrating screen, a supplementing bin, a rotary valve, temperature, pressure and flow measuring instruments and the like, wherein the flue gas purifying and regenerating tower comprises a purifying section and a regenerating section. The purifying section consists of an inlet section, a working section, a blanking section, an air inlet end and an air outlet end; a blanking piece is arranged at the inlet section of the purifying section, and consists of a supporting rod, a diversion cone and a diversion cover; the blanking section is provided with a funnel and a roller feeder; the air inlet end and the air outlet end are both provided with guide plates. The regeneration section comprises a transition section, a heating section and an outlet section; the transition section comprises a material collecting section and a gas collecting section, wherein the material collecting section comprises a material guide plate and a discharging hopper, the gas collecting section comprises a shell and a gas inlet hole, and a nitrogen gas supply part is arranged in the outlet section and comprises a gas pipe, a gas inlet cone and a gas distribution hole.
Preferably, the flue gas treatment process for purifying and regenerating the carbon-based catalyst comprises the steps that the carbon-based catalyst enters a working section to treat flue gas after being subjected to flow equalization through a blanking part through an inlet section of a purifying section of a flue gas purifying and regenerating tower through a rotary valve, the carbon-based catalyst after being subjected to adsorption saturation flows into a transition section of the regenerating section through a roller feeder of the blanking section, is conveyed to a heating section to be regenerated through a material guide plate and a blanking hopper of a material collecting section, flows out of the flue gas purifying and regenerating tower after being shunted by an air inlet cone of an outlet section, and enters a conveyor to be cooled and conveyed to the flue gas purifying and regenerating tower to be recycled after being replenished with fresh carbon-based catalyst through a rotary valve, a vibrating screen and a material supplementing bin.
The flue gas before purification enters the working section after being diffused by the guide plate from the air inlet end of the purification section of the flue gas purification regeneration tower, and is discharged from the air outlet end after being treated by the carbon-based catalyst and flowing through the guide plate. Fresh nitrogen is respectively sent into the conveyor from the positions near the inlet section and the outlet section of the flue gas purifying and regenerating tower by the conveyor, cooling of the carbon-based catalyst in the conveyor is completed in the flowing process, the nitrogen flows out from the middle of the conveyor, after being heated by the electric heater, the nitrogen flows through the gas pipe and the gas inlet cone of the nitrogen gas supply part, enters the heating section from the gas distribution hole to heat and regenerate the carbon-based catalyst, and then is mixed with the regenerated gas of the carbon-based catalyst to form high-concentration sulfur dioxide gas (SRG), and flows out of the flue gas purifying and regenerating tower through the gas inlet hole and the shell of the gas collecting section.
Compared with the related art, the purifying and regenerating one-tower carbon-based catalyst flue gas treatment device provided by the invention has the following beneficial effects:
the invention provides a purifying and regenerating one-tower carbon-based catalyst flue gas treatment device, which has the following beneficial effects compared with the prior art:
1. the purification and regeneration functions of the carbon-based catalyst are realized in one tower, so that the occupied area of the system in construction can be saved; the bottom of the purifying section and the top of the regenerating section are not required to be provided with rotary valves, the regeneration of the adsorption saturated carbon-based catalyst and the recycling of the regenerated carbon-based catalyst can be completed by only one conveyor, the configuration quantity of the rotary valves and the conveyors is reduced, and the construction cost and the operation failure rate of the system are reduced; nitrogen is fed into two ends of the conveyor, so that the carbon-based catalyst is cooled in the movement process of the conveyor, the design of a cooling section is omitted in the regeneration section of the flue gas purification regeneration tower, the design of the flue gas purification regeneration tower is simplified, and the equipment manufacturing cost and time are saved.
2. The inlet section of the purification section is provided with the conical sleeve type blanking piece, the carbon-based catalyst enters the working section after being buffered by the blanking piece, the impact of material blanking is reduced, the crushing rate is reduced, and the carbon-based catalyst is blanked from the conical sleeves of different layers of the blanking piece, so that the uniform distribution of materials in the tower is facilitated.
3. The air inlet end and the air outlet end are respectively provided with a guide plate, the horizontal inclination angle of the guide plate at the air inlet end is large, the width of the guide plate in the flow direction of the flue gas from top to bottom is reduced, the flow resistance of the flue gas of the guide plate from top to bottom is reduced, and the air inflow of the lower part of the working section is increased; the horizontal dip angle of the air outlet end guide plate is small, the width of the guide plate along the flow direction of the flue gas is increased from top to bottom, the flow resistance of the flue gas of the guide plate is increased from top to bottom, the air outlet amount at the upper part of the working section is increased, the flue gas can be uniformly diffused in the tower, the carbon-based catalyst in the tower can be fully contacted and reacted with the flue gas, the purifying amount of the flue gas is increased, and the use efficiency of the carbon-based catalyst is improved.
4. The blanking section is provided with a conical funnel, the aggregate section is provided with a material guide plate and a blanking hopper, and the sealing effect of materials can be utilized to prevent flue gas or regenerated gas from leaking and channeling into the regeneration section or the purification section.
5. The aggregate section is provided with a guide plate and a discharging hopper, which is beneficial to uniformly distributing the carbon-based catalyst in the regeneration section.
6. The conical nitrogen supply piece is filled with hot nitrogen from the middle of the bottom of the regeneration section, so that the hot nitrogen in the tower is uniformly diffused, the carbon-based catalyst is fully heated, and the regeneration rate of the carbon-based catalyst is improved; the flow guiding function is also provided for discharging the carbon-based catalyst, so that the carbon-based catalyst in the heating section is uniformly discharged. The gas collecting section is provided with the gas inlet holes, the gas inlet holes are arranged at the periphery in the heating section, so that the regenerated gas in the heating section can be more fully collected, the residue of high-concentration sulfur dioxide gas is reduced, and the corrosion to equipment is reduced.
7. The hot nitrogen after cooling the carbon-based catalyst in the conveyor is used as a gas source for heating and regenerating the carbon-based catalyst, so that the heat loss of the hot nitrogen is avoided, and the energy consumption of the electric heater is reduced.
Drawings
FIG. 1 is a schematic process diagram of a purifying and regenerating a primary carbon-based catalyst flue gas treatment device;
FIG. 2 is a schematic diagram of a flue gas cleaning regeneration tower;
FIG. 3 is a schematic diagram of a purification section of a flue gas purification regeneration tower;
FIG. 4 is a schematic view of the blanking member in the inlet section of the purification section of the flue gas purification regeneration tower;
FIG. 5 is a schematic view of the inlet end of the purification section of the flue gas purification regeneration tower;
FIG. 6 is a schematic view of the gas outlet end of the purification section of the flue gas purification regeneration tower;
FIG. 7 is a schematic diagram of the interior of the blanking section in the purification section of the flue gas purification regeneration tower;
FIG. 8 is a schematic diagram of a regeneration section of a flue gas cleaning regeneration tower;
FIG. 9 is a schematic illustration of a transition section in a regeneration section of a flue gas cleaning regeneration tower;
FIG. 10 is a schematic view of the aggregate section in the transition section of the regeneration section of the flue gas cleaning regeneration tower;
FIG. 11 is a schematic view of a gas collection section in a transition section of a regeneration section of a flue gas cleaning regeneration tower;
FIG. 12 is a schematic view of a blanking hopper or inlet vent in a transition section of a regeneration section of a flue gas cleaning regeneration tower;
FIG. 13 is a schematic view of a nitrogen supply in the outlet section of the regeneration section of the flue gas cleaning regeneration tower.
Detailed Description
The invention will be further described with reference to the drawings and embodiments.
As shown in figure 1, the flue gas treatment device for purifying and regenerating the carbon-based catalyst comprises a flue gas purifying and regenerating tower 1, a conveyor 2, nitrogen fans 3 and 8, electric regulating valves 4 and 9, an electric heater 5, a supplementing bin 6, a vibrating screen 7, rotary valves 10 and 11, temperature, pressure and flow measuring instruments and the like.
As shown in fig. 2, the flue gas purifying and regenerating tower 1 comprises a purifying section 1.1 and a regenerating section 1.2.
As shown in fig. 3, the purifying section 1.1 is composed of an inlet section 1.3, an outlet end 1.4, a working section 1.5, a blanking section 1.6 and an inlet end 1.7.
As shown in fig. 4, the inlet section 1.3 of the purifying section 1.1 is provided with a blanking member 1.8, and the blanking member 1.8 is composed of a guide cover 1.8.1, a guide cone 1.8.2 and a supporting rod 1.8.3, wherein the included angles of the guide cover 1.8.1 and the guide cone 1.8.2 with the horizontal plane are larger than the stacking angle of the carbon-based catalyst.
As shown in fig. 5 and 6, the air inlet end 1.7 is provided with a straight pipe section 1.7.1 and a guide plate 1.7.2, and the air outlet end 1.4 is provided with a straight pipe section 1.4.1 and a guide plate 1.4.2. The included angles of the guide plates 1.4.2 and the guide plates 1.7.2 with the horizontal plane are larger than the stacking angle of the carbon-based catalyst. The width of the guide plate 1.4.2 along the flow direction of the flue gas from top to bottom is increased, and one side is aligned with the contact surface of the straight pipe section 1.4.1 and the working section 1.5; the width of the deflector 1.7.2 decreases from top to bottom in the direction of flow of the flue gas, with one side being in line with the contact surfaces of the straight tube sections 1.7.1 and the working section 1.5.
As shown in fig. 7, a hopper 1.6.1 and a roller feeder 1.6.2 are arranged in the blanking section 1.6.
As shown in fig. 8, the regeneration section 1.2 comprises a transition section 1.9, a heating section 1.10 and an outlet section 1.11.
As shown in fig. 9, transition section 1.9 is comprised of an aggregate section 1.9.1 and a gas collecting section 1.9.2.
As shown in fig. 10, the aggregate section 1.9.1 includes a guide plate 1.9.3 and a discharge hopper 1.9.4.
As shown in fig. 11, the air collection section 1.9.2 includes an air inlet 1.9.4 and a housing 1.9.5.
As shown in fig. 12, is an intake or discharge hopper 1.9.4.
As shown in fig. 13, a nitrogen supply 1.12 is arranged in the outlet section 1.5, which consists of a gas pipe 1.12.1, a gas inlet cone 1.12.2 and a gas distribution hole 1.12.3. The included angles of the air inlet cone horizontal planes are all larger than the stacking angle of the carbon-based catalyst.
A purifying and regenerating a tower-type carbon-based catalyst flue gas treatment process is characterized in that electric regulating valves 4 and 9 are opened, nitrogen fans 3 and 8 are started, and cooling nitrogen enters a conveyor 2; operating the conveyor 2, opening the vibrating screen 7, the roller feeder 1.6.2, the rotary valves 10 and 11 and the supplementing bin 6, and enabling the carbon-based catalyst to start circulating; starting a heater 5, introducing flue gas, and starting a carbon-based catalyst purification and regeneration process; in the flue gas purification and carbon-based catalyst regeneration process, the power of the heater 5 is required to be adjusted to keep the temperature of the heated nitrogen at the outlet at about 450 ℃, and the opening of the electric regulating valves 4 and 9 is adjusted to keep the temperature of the carbon-based catalyst entering the purification and regeneration tower 1 below 120 ℃ after being cooled in the conveyor 2; the material conveying amount of the carbon-based catalyst is regulated by regulating the rotating speed of the roller feeder 1.6.2, so that the flow speed of the carbon-based catalyst in the purifying and regenerating tower 1 can be regulated to adapt to different flue gas flow and pollutant concentrations, and the problems that the flue gas emission exceeds standard after purification and the carbon-based catalyst in the tower catches fire due to adsorption heat release and heat accumulation are avoided; the carbon-based catalyst powder screened by the vibrating screen 7 is required to be treated according to harmful solid wastes.
The carbon-based catalyst flows into a transition section 1.9 of a regeneration section 1.2 from a roller feeder 1.6.2 of a blanking section 1.6 through a rotary valve 10, flows into a heating section 1.10 for regeneration from a guide plate 1.9.3 and a blanking hopper 1.9.4 of an aggregate section 1.9.1, flows out of the flue gas purification regeneration tower 1 after being split by an air inlet cone 1.12 of an outlet section 1.11, and flows into a conveyor 2 for cooling and is conveyed to the flue gas purification regeneration tower 1 for recycling after being screened by a fresh carbon-based catalyst and a vibrating screen 7 after being supplemented by a rotary valve 11 and a supplementing bin 6 after being subjected to flow equalization by a blanking member 1.8 in the working section 1.5.
The flue gas before purification enters the working section 1.5 after being diffused by the air inlet end 1.7 of the purification section 1.1 of the flue gas purification regeneration tower 1 through the guide plate 1.7.2, and is discharged from the air outlet end 1.4 after being treated by the carbon-based catalyst and flowing through the guide plate 1.4.2. Fresh nitrogen is respectively sent into the positions near the inlet section 1.3 and the outlet section 1.11 of the flue gas purifying and regenerating tower 1 by the conveyor 2, cooling of the carbon-based catalyst in the conveyor 2 is completed in the flowing process, the nitrogen after heat exchange flows out of the middle of the conveyor 2, after being heated by the electric heater 5, flows through the gas pipe 1.12.1 and the gas inlet cone 1.12.2 of the nitrogen gas supply piece 1.12, enters the heating section 1.10 from the gas distribution hole 1.12.3 to heat and regenerate the carbon-based catalyst, and then is mixed with the gas regenerated by the carbon-based catalyst to form high-concentration sulfur dioxide gas (SRG), and flows out of the flue gas purifying and regenerating tower 1 through the gas inlet hole 1.9.4 and the shell 1.9.5 of the gas collecting section 1.9.2.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (2)
1. A purifying and regenerating a tower-shaped carbon-based catalyst flue gas treatment device is characterized in that: the device comprises a flue gas purifying and regenerating tower, a conveyor, a nitrogen fan, an electric regulating valve, an electric heater, a supplementing bin, a vibrating screen, a rotary valve and temperature, pressure and flow measuring instruments; the flue gas purifying and regenerating tower comprises a purifying section and a regenerating section; the purifying section consists of an inlet section, an air outlet end, a working section, a blanking section and an air inlet end; the inlet section of the purification section is provided with a blanking part, the blanking part consists of a guide cover, a guide cone and a supporting rod, and the included angles of the guide cover and the guide cone with the horizontal plane are larger than the stacking angle of the carbon-based catalyst; the gas inlet end is provided with a straight pipe section and a guide plate, the gas outlet end is provided with a straight pipe section and a guide plate, the included angles of the gas inlet end guide plate and the gas outlet end guide plate are larger than the stacking angle of the carbon-based catalyst, the included angle of the gas inlet end guide plate and the horizontal plane is large, the included angle of the gas outlet end guide plate and the horizontal plane is small, the width of the gas outlet end guide plate along the flow direction of the flue gas from top to bottom is increased, one side of the gas outlet end guide plate is aligned with the contact surface of the straight pipe section and the working section, the width of the gas inlet end guide plate along the flow direction of the flue gas from top to bottom is reduced, and one side of the gas outlet end guide plate is aligned with the contact surface of the straight pipe section and the working section;
a hopper and a roller feeder are arranged in the blanking section;
the regeneration section comprises a transition section, a heating section and an outlet section;
the transition section consists of an aggregate section and a gas collecting section;
the material collecting section comprises a material guiding plate and a material discharging hopper;
the gas collecting section comprises a gas inlet hole and a shell;
the outlet section is internally provided with a nitrogen supply part, the nitrogen supply part consists of a gas pipe, a gas inlet cone and a gas distribution hole, and the included angle of the horizontal plane of the gas inlet cone is larger than the stacking angle of the carbon-based catalyst.
2. The purifying and regenerating-one-tower carbon-based catalyst flue gas treatment device according to claim 1, wherein the steps of the carbon-based catalyst flue gas treatment process are as follows: the method comprises the steps that a carbon-based catalyst flows into a transition section of a regeneration section through a rotary valve through an inlet section of a purification section of a flue gas purification regeneration tower after being subjected to flow equalization through a blanking part, the carbon-based catalyst after being subjected to adsorption saturation flows into the transition section of the regeneration section through a roller feeder of the blanking section, is conveyed to a heating section for regeneration through a guide plate and a blanking hopper of the aggregation section, finally flows out of the flue gas purification regeneration tower after being subjected to flow equalization through an air inlet cone of an outlet section, enters a conveyor for cooling and is conveyed to the flue gas purification regeneration tower for recycling after being subjected to rotary valve, a vibrating screen screening and a supplementing bin supplement fresh carbon-based catalyst, the flue gas before purification enters the working section after being subjected to diffusion through a guide plate, flows out of the guide plate after being subjected to treatment through the carbon-based catalyst, fresh nitrogen is respectively discharged from an air outlet end through the guide plate, is cooled by the carbon-based catalyst in the conveyor in the middle of the conveyor, flows out of a pipe and the air inlet cone of a nitrogen air supply part after being subjected to temperature equalization, and flows out of the heating section after being subjected to heat exchange, and the carbon-based catalyst flows into the heating section, and the flue gas after being subjected to heat exchange, and the concentration is regenerated, and the flue gas is mixed into a high-concentration flue gas after being subjected to regeneration gas is purified, and the flue gas is discharged through a shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210960985.7A CN115178089B (en) | 2022-08-11 | 2022-08-11 | Purifying and regenerating one-tower carbon-based catalyst flue gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210960985.7A CN115178089B (en) | 2022-08-11 | 2022-08-11 | Purifying and regenerating one-tower carbon-based catalyst flue gas treatment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115178089A CN115178089A (en) | 2022-10-14 |
| CN115178089B true CN115178089B (en) | 2024-01-23 |
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| CN202210960985.7A Active CN115178089B (en) | 2022-08-11 | 2022-08-11 | Purifying and regenerating one-tower carbon-based catalyst flue gas treatment device |
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Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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