CN115178089A - Purify and regenerate charcoal base catalyst flue gas processing apparatus of one tower ization - Google Patents
Purify and regenerate charcoal base catalyst flue gas processing apparatus of one tower ization Download PDFInfo
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- CN115178089A CN115178089A CN202210960985.7A CN202210960985A CN115178089A CN 115178089 A CN115178089 A CN 115178089A CN 202210960985 A CN202210960985 A CN 202210960985A CN 115178089 A CN115178089 A CN 115178089A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 89
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 239000003546 flue gas Substances 0.000 title claims abstract description 88
- 239000003610 charcoal Substances 0.000 title description 3
- 238000012545 processing Methods 0.000 title description 2
- 230000008929 regeneration Effects 0.000 claims abstract description 96
- 238000011069 regeneration method Methods 0.000 claims abstract description 96
- 238000000746 purification Methods 0.000 claims abstract description 90
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 88
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000000463 material Substances 0.000 claims abstract description 23
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 45
- 238000010438 heat treatment Methods 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 13
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 11
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 6
- 230000001172 regenerating effect Effects 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 2
- 239000006052 feed supplement Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000001179 sorption measurement Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000009827 uniform distribution Methods 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000006477 desulfuration reaction Methods 0.000 description 7
- 230000023556 desulfurization Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000007599 discharging Methods 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
- 239000000779 smoke Substances 0.000 description 3
- 229910052815 sulfur oxide Inorganic materials 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 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
- 239000006227 byproduct Substances 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 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
Images
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 purification and regeneration one-tower carbon-based catalyst flue gas treatment device, which realizes the purification and regeneration functions of a carbon-based catalyst in one tower and can save the occupied area of a system during construction; the bottom of the purification section and the top of the regeneration section do not need to be provided with a rotary valve, and the regeneration of the carbon-based catalyst with saturated adsorption and the cyclic utilization of the regenerated carbon-based catalyst can be completed by only one conveyor, so that the configuration quantity of the rotary valve and the conveyor 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, and the design of a cooling section is omitted in the regeneration section of the flue gas purification and regeneration tower, the design of the flue gas purification and 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 piece at the inlet section of the purification section, so that the impact of material blanking is reduced, the breakage rate is reduced, and the carbon-based catalyst is blanked from conical sleeves at different layers of the blanking piece, so that 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 purification and regeneration 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 saving, basically no wastewater discharge, less equipment corrosion, reduced visibility of smoke plume (improved environmental impression), high desulfurization efficiency, no gypsum rain generation, realization of high added 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 this technique mainly has SOx/NOx control tower and regenerator column, and SOx/NOx control tower will have SOx/NOx control dust removal's integration function, and the regenerator column needs to include heating section and cooling zone and accomplishes the heating regeneration and the cooling of charcoal base catalyst and recycle. In addition, the arrangement of the two towers needs to occupy the land respectively, two sets of conveyors are also needed to realize that the carbon-based catalyst saturated by adsorption is conveyed to the regeneration tower for regeneration, the regenerated carbon-based catalyst is conveyed to the desulfurization and denitrification tower for reuse, and rotary valves are needed to be arranged at the top and the bottom of the two towers for charging and discharging. This results in complex process structure, high manufacturing and installation cost, long production cycle, and more auxiliary equipment to be configured, which affects the economy of system construction and the reliability of operation, and increases the time and cost of system maintenance.
Therefore, it is necessary to provide a flue gas treatment device for purifying and regenerating a tower-type carbon-based catalyst to solve the above technical 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 which are core equipment in a carbon-based catalytic desulfurization and denitrification technology, the invention provides a flue gas treatment device and process for purifying and regenerating a carbon-based catalyst into a tower, which simplifies the design of the device, reduces the manufacturing cost and time of the equipment, reduces the floor area of system arrangement, optimizes the number of auxiliary equipment configured by two towers, reduces the cost of system maintenance and ensures the safety of system operation.
In order to solve the technical problems, the invention provides a purification and regeneration one-tower carbon-based catalyst flue gas treatment device which comprises a flue gas purification and regeneration tower, a conveyor, a nitrogen fan, an electric regulating valve, an electric heater, a vibrating screen, a material supplementing bin, a rotary valve, a temperature, pressure and flow measuring instrument and the like, wherein the flue gas purification and regeneration tower comprises a purification section and a regeneration section. The purification 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 purification section, and the blanking piece consists of a support rod, a flow guide cone and a flow guide cover; the blanking section is provided with a hopper and a roller feeder; the air inlet end and the air outlet end are both provided with a guide plate. The regeneration section comprises a transition section, a heating section and an outlet section; the transition section comprises the section of gathering materials and gas collection section, and the section of gathering materials has included stock guide and lower hopper, and the gas collection section has contained casing and inlet port, has arranged nitrogen gas air feed spare in the export section, and nitrogen gas air feed spare comprises gas-supply pipe, air inlet awl and gas distribution hole.
Preferably, the carbon-based catalyst flue gas treatment process comprises the steps of enabling the carbon-based catalyst to flow uniformly through a blanking piece from an inlet section of a purification section of a flue gas purification and regeneration tower through a rotary valve, enabling the carbon-based catalyst to enter a working section to treat flue gas, enabling the carbon-based catalyst saturated in adsorption to flow into a transition section of a regeneration section through a roller feeder of the blanking section, conveying the carbon-based catalyst to a heating section from a material guide plate and a blanking hopper of an aggregate section for regeneration, distributing the carbon-based catalyst by an air inlet cone of an outlet section, enabling the carbon-based catalyst to flow out of the flue gas purification and regeneration tower, screening the carbon-based catalyst through the rotary valve and a vibrating screen, supplementing fresh carbon-based catalyst to a feed bin, enabling the carbon-based catalyst to enter a conveyor to be cooled and conveying the carbon-based catalyst to the flue gas purification and regeneration tower for recycling.
The flue gas before purification is diffused by the guide plate from the air inlet end of the purification section of the flue gas purification regeneration tower, enters the working section, is treated by the carbon-based catalyst, flows through the guide plate and is discharged from the air outlet end. Fresh nitrogen is respectively sent into the conveyor from the conveyor at the positions near the inlet section and the outlet section of the flue gas purification and regeneration tower, the cooling of the carbon-based catalyst in the conveyor is completed in the flowing process, the nitrogen flows out from the middle part of the conveyor, the nitrogen is heated by the electric heater and then flows through the gas pipe and the gas inlet cone of the nitrogen gas supply piece, the nitrogen enters the heating section from the gas distribution hole, the carbon-based catalyst is heated and regenerated, the gas regenerated by the carbon-based catalyst is mixed into high-concentration sulfur dioxide gas (SRG), and the nitrogen flows out of the flue gas purification and regeneration tower through the gas inlet hole and the shell of the gas collection section.
Compared with the related technology, the purification and regeneration one-tower carbon-based catalyst flue gas treatment device provided by the invention has the following beneficial effects:
the invention provides a purification and regeneration 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 during construction can be saved; the bottom of the purification section and the top of the regeneration section do not need to be provided with a rotary valve, and the regeneration of the carbon-based catalyst with saturated adsorption and the cyclic utilization of the regenerated carbon-based catalyst can be completed by only one conveyor, so that the configuration quantity of the rotary valve and the conveyor 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, and 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 a conical sleeve type feed part shaped like a Chinese character 'hui', the carbon-based catalyst enters the working section after being buffered by the feed part, the impact of material feeding is reduced, the breakage rate is reduced, and the carbon-based catalyst is fed from conical sleeves on different layers of the feed part, so that the uniform distribution of materials in the tower is facilitated.
3. The air inlet end and the air outlet end are both provided with guide plates, the horizontal inclination angle of the guide plates at the air inlet end is large, the width of the guide plates from top to bottom along the smoke flowing direction is reduced, the smoke flowing resistance of the guide plates from top to bottom is reduced, and the air inflow at the lower part of the working section is increased; the horizontal inclination angle of the air outlet end guide plate is small, the width of the guide plate along the flue gas flowing direction from top to bottom is increased, the flue gas flowing resistance of the guide plate from top to bottom is increased, the air outlet quantity of the upper part of the working section is increased, the flue gas is favorably and uniformly diffused in the tower, the carbon-based catalyst in the tower is in full contact reaction with the flue gas, the flue gas purification quantity is increased, and the use efficiency of the carbon-based catalyst is improved.
4. The blanking section is provided with a conical funnel, the material collecting 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 material collecting section is provided with a material guide plate and a material discharging hopper, which is beneficial to the uniform distribution of the carbon-based catalyst in the regeneration section.
6. The conical nitrogen gas supply piece is filled with hot nitrogen from the middle of the bottom of the regeneration section, so that the uniform diffusion of the hot nitrogen in the tower is facilitated, the carbon-based catalyst is fully heated, and the regeneration rate of the carbon-based catalyst is improved; the device also has a flow guide effect when discharging the carbon-based catalyst, so that the carbon-based catalyst in the heating section is uniformly discharged. The gas collection section sets up the inlet port, and the inlet port arranges around in the heating section, and the regeneration gas in the heating section of collection that can be more abundant reduces high concentration sulfur dioxide gas's residue, alleviates the corruption to equipment.
7. The hot nitrogen after the carbon-based catalyst is cooled in the conveyer 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 purification and regeneration tower-based carbon-based catalyst flue gas treatment plant;
FIG. 2 is a schematic diagram of a flue gas purification and regeneration tower;
FIG. 3 is a schematic diagram of the structure of a purification section of a flue gas purification and regeneration tower;
FIG. 4 is a schematic view of a blanking member in an inlet section of a purification section of a flue gas purification and regeneration tower;
FIG. 5 is a schematic diagram of the gas inlet end of the purification section of the flue gas purification and regeneration tower;
FIG. 6 is a schematic diagram of the gas outlet end of the purification section of the flue gas purification and regeneration tower;
FIG. 7 is a schematic view of the interior of a blanking section in a purification section of a flue gas purification and regeneration tower;
FIG. 8 is a schematic diagram of the regeneration section of a flue gas purification and regeneration tower;
FIG. 9 is a schematic diagram of a transition section in the regeneration section of a flue gas cleaning regeneration tower;
FIG. 10 is a schematic view of a material collecting section in a transition section in a regeneration section of a flue gas purification and regeneration tower;
FIG. 11 is a schematic view of a gas collection section in a transition section in a regeneration section of a flue gas purification and regeneration tower;
FIG. 12 is a schematic view of a discharge hopper or an air inlet in a transition section in a regeneration section of a flue gas purification and regeneration tower;
FIG. 13 is a schematic diagram of a nitrogen gas supply in the outlet section of the regeneration section of a flue gas cleaning regeneration tower.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
As shown in figure 1, the purification and regeneration one-tower carbon-based catalyst flue gas treatment device comprises a flue gas purification and regeneration tower 1, a conveyor 2, nitrogen fans 3 and 8, electric regulating valves 4 and 9, an electric heater 5, a feed 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 purification and regeneration tower 1 comprises a purification section 1.1 and a regeneration section 1.2.
As shown in fig. 3, the purification section 1.1 is composed of an inlet section 1.3, an outlet end 1.4, an operating 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 purification section 1.1 is provided with a blanking member 1.8, the blanking member 1.8 is composed of a flow guide cover 1.8.1, a flow guide cone 1.8.2 and a support rod 1.8.3, and the included angles between the flow guide cover 1.8.1 and the flow guide cone 1.8.2 and the horizontal plane are both 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 flow deflector 1.7.2, and the air outlet end 1.4 is provided with a straight pipe section 1.4.1 and a flow deflector 1.4.2. The included angles between the guide plate 1.4.2 and the guide plate 1.7.2 and the horizontal plane are both larger than the stacking angle of the carbon-based catalyst. The width of the flow guide plate 1.4.2 is increased from top to bottom along the flow direction of the flue gas, and one side of the flow guide plate is aligned with the contact surface of the straight pipe section 1.4.1 and the working section 1.5; the width of the guide plate 1.7.2 is reduced from top to bottom along the flowing direction of the flue gas, and one side of the guide plate is aligned with the contact surface of the straight pipe section 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 installed 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, the transition section 1.9 is composed of an aggregate section 1.9.1 and a gas collection section 1.9.2.
As shown in fig. 10, the material collecting section 1.9.1 includes a material guide plate 1.9.3 and a material discharge hopper 1.9.4.
As shown in fig. 11, the gas collection section 1.9.2 includes inlet ports 1.9.4 and housing 1.9.5.
Shown in fig. 12 is an air inlet or discharge hopper 1.9.4.
As shown in FIG. 13, a nitrogen gas supply member 1.12 is arranged in the outlet section 1.5, and the nitrogen gas supply member is composed of a gas pipe 1.12.1, an air inlet cone 1.12.2 and an air distribution hole 1.12.3. The included angles of the horizontal planes of the air inlet cones are all larger than the stacking angle of the carbon-based catalyst.
A purification and regeneration one-tower carbon-based catalyst flue gas treatment process comprises the steps of opening electric control valves 4 and 9, starting nitrogen fans 3 and 8, and enabling cooling nitrogen to enter a conveyor 2; the conveyor 2 is operated, the vibrating screen 7, the roller feeder 1.6.2, the rotary valves 10 and 11 and the feed bin 6 are started, and the carbon-based catalyst starts to circularly flow; starting the heater 5, introducing flue gas, and starting the carbon-based catalyst purification and regeneration process; in the flue gas purification and carbon-based catalyst regeneration processes, the power of a heater 5 needs to be adjusted, so that the temperature of heated nitrogen at an outlet is kept at about 450 ℃, and the opening degrees of electric regulating valves 4 and 9 are adjusted, so that the temperature of the carbon-based catalyst entering a purification and regeneration tower 1 after being cooled in a conveyor 2 is kept below 120 ℃; the material conveying quantity of the carbon-based catalyst is adjusted by adjusting the rotating speed of the roller feeder 1.6.2, so that the flowing speed of the carbon-based catalyst in the purifying and regenerating tower 1 can be adjusted to adapt to different flue gas flow rates and pollutant concentrations, and the over-temperature ignition caused by the over-standard discharge of flue gas after purification and the heat accumulation of the carbon-based catalyst in the tower due to adsorption and heat release is avoided; the carbon-based catalyst powder screened by the vibrating screen 7 needs to be treated according to harmful solid wastes.
Carbon-based catalyst enters a working section 1.5 for purifying flue gas after being subjected to flow equalization by an inlet section 1.3 of a purification section 1.1 of a flue gas purification and regeneration tower 1 through a rotary valve 10 through a blanking piece 1.8, the carbon-based catalyst after being saturated by adsorption flows into a transition section 1.9 of a regeneration section 1.2 through a roller feeder 1.6.2 of a blanking section 1.6, is conveyed to a heating section 1.10 for regeneration from a material guide plate 1.9.3 and a blanking hopper 1.9.4 of an aggregate section 1.9.1, is shunted by an air inlet cone 1.12 of an outlet section 1.11, flows out of the flue gas purification and regeneration tower 1, is supplemented with fresh carbon-based catalyst through a rotary valve 11 and a material feeding bin 6, is screened by a vibrating screen 7, enters a conveyor 2 for cooling and is conveyed to the flue gas purification and regeneration tower 1 for recycling.
The flue gas before purification is diffused by the guide plate 1.7.2 from the gas inlet end 1.7 of the purification section 1.1 of the flue gas purification regeneration tower 1 and then enters the working section 1.5, and after being treated by the carbon-based catalyst, the flue gas flows through the guide plate 1.4.2 and is discharged from the gas outlet end 1.4. Fresh nitrogen is respectively fed from the conveyor 2 at the positions near the inlet section 1.3 and the outlet section 1.11 of the flue gas purification and regeneration tower 1, the cooling of the carbon-based catalyst in the conveyor 2 is completed in the flowing process, the nitrogen after heat exchange flows out from the middle part of the conveyor 2, after the temperature is raised by the electric heater 5, the nitrogen flows through a gas conveying pipe 1.12.1 and a gas inlet cone 1.12.2 of the nitrogen gas supply part 1.12, enters the heating section 1.10 from a gas distribution hole 1.12.3 to heat and regenerate the carbon-based catalyst, and then the gas after regeneration with the carbon-based catalyst is mixed into high-concentration sulfur dioxide gas (SRG), and flows out of the flue gas purification and regeneration tower 1 through a gas inlet hole 1.9.4 and a shell 1.9.5 of a gas collection section 1.9.2.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A carbon-based catalyst flue gas treatment device for purifying and regenerating a tower is characterized in that: comprises a flue gas purification and regeneration tower, a conveyor, a nitrogen fan, an electric regulating valve, an electric heater, a feed supplement bin, a vibrating screen, a rotary valve and temperature, pressure and flow measuring instruments;
the flue gas purification regeneration tower comprises a purification section and a regeneration section;
the purification 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 piece, the blanking piece consists of a flow guide cover, a flow guide cone and a support rod, and the included angles between the flow guide cover and the flow guide cone and the horizontal plane are all larger than the stacking angle of the carbon-based catalyst;
the air inlet end is provided with a straight pipe section and a guide plate, the air outlet end is provided with a straight pipe section and a guide plate, the included angles between the air inlet end guide plate and the horizontal plane and the included angles between the air outlet end guide plate and the horizontal plane are both larger than the stacking angle of the carbon-based catalyst, the included angle between the air inlet end guide plate and the horizontal plane is large, and the included angle between the air outlet end guide plate and the horizontal plane is small.
2. The purification and regeneration towered carbon-based catalyst flue gas treatment device of claim 1, wherein the width of the outlet end baffle plate increases from top to bottom in the flue gas flow direction, one side being aligned with the contact surface of the straight pipe section and the working section.
3. The purification and regeneration towered carbon-based catalyst flue gas treatment device of claim 1, wherein the inlet end baffle is reduced in width from top to bottom in the direction of flue gas flow, one side being aligned with the contact surface of the straight tube section and the working section.
4. The purification and regeneration towered carbon-based catalyst flue gas treatment device of claim 1, wherein a hopper and roll feeder are installed in the blanking section.
5. The purification and regeneration single-tower carbon-based catalyst flue gas treatment device according to claim 1, wherein the regeneration section comprises a transition section, a heating section and an outlet section.
6. The purification and regeneration towable carbon-based catalyst flue gas treatment device of claim 1, wherein the transition section is comprised of an aggregate section and a gas collection section.
7. The purification and regeneration towable carbon-based catalyst flue gas treatment device according to claim 1, wherein the collection section comprises a guide plate and a discharge hopper.
8. The purification and regeneration towable carbon-based catalyst flue gas treatment device of claim 1, wherein the gas collection section comprises an inlet and a housing.
9. The purification and regeneration one-tower carbon-based catalyst flue gas treatment device according to claim 1, wherein a nitrogen gas supply member is arranged in the outlet section, the nitrogen gas supply member is composed of a gas pipe, a gas inlet cone and a gas distribution hole, and the included angles of the horizontal plane of the gas inlet cone are all larger than the accumulation angle of the carbon-based catalyst.
10. The purification and regeneration towered carbon-based catalyst flue gas treatment device according to claim 1, wherein the carbon-based catalyst flue gas treatment process comprises the steps of:
the carbon-based catalyst flows through a rotary valve, flows through an inlet section of a purification section of the flue gas purification and regeneration tower by a blanking part, enters a working section for treating flue gas, flows into a transition section of the regeneration section by a roller feeder of the blanking section after being adsorbed and saturated, is conveyed to a heating section for regeneration by a material guide plate and a blanking hopper of an aggregate section, is shunted by an air inlet cone of an outlet section, flows out of the flue gas purification and regeneration tower, is screened by the rotary valve and a vibrating screen and is supplemented with fresh carbon-based catalyst by a material supplementing bin, enters a conveyor for cooling and is conveyed to the flue gas purification and regeneration tower for recycling,
the flue gas before purification enters the working section after being diffused by the guide plate from the gas inlet end of the purification section of the flue gas purification regeneration tower, is treated by the carbon-based catalyst, flows through the guide plate and is discharged from the gas outlet end, fresh nitrogen is respectively sent into the conveyor from the positions near the inlet section and the outlet section of the flue gas purification regeneration tower by the conveyor, the cooling of the carbon-based catalyst in the conveyor is completed in the flowing process, flows out of the middle part of the conveyor, is heated by the electric heater, flows through the gas pipe and the gas inlet cone of the nitrogen gas supply piece, enters the heating section from the gas distribution hole, heats and regenerates the carbon-based catalyst, 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 purification regeneration tower through the gas inlet hole and the shell of the gas collection section.
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