CN210357199U - Carbon-based catalyst regenerating unit - Google Patents
Carbon-based catalyst regenerating unit Download PDFInfo
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- CN210357199U CN210357199U CN201920796942.3U CN201920796942U CN210357199U CN 210357199 U CN210357199 U CN 210357199U CN 201920796942 U CN201920796942 U CN 201920796942U CN 210357199 U CN210357199 U CN 210357199U
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- 239000003054 catalyst Substances 0.000 title claims abstract description 139
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 126
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 89
- 239000011148 porous material Substances 0.000 claims abstract description 75
- 238000001035 drying Methods 0.000 claims abstract description 69
- 239000007789 gas Substances 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000011069 regeneration method Methods 0.000 claims abstract description 45
- 238000003795 desorption Methods 0.000 claims abstract description 43
- 230000008929 regeneration Effects 0.000 claims abstract description 43
- 238000005192 partition Methods 0.000 claims abstract description 29
- 239000000112 cooling gas Substances 0.000 claims abstract description 28
- 238000007599 discharging Methods 0.000 claims abstract description 22
- 238000011084 recovery Methods 0.000 claims abstract description 19
- 239000003610 charcoal Substances 0.000 claims abstract description 9
- 230000007704 transition Effects 0.000 claims description 36
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 238000000638 solvent extraction Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 238000005485 electric heating Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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Abstract
The utility model discloses a charcoal base catalyst regenerating unit, the device top are the pan feeding mouth, and the bottom is the discharge gate, is equipped with desorption section, dry section and recovery section from pan feeding mouth to discharge gate in proper order. A partition plate is arranged in the feeding port; a slide carriage is arranged at the discharge port; the desorption section is provided with a high-temperature water vapor inlet, a high-temperature water vapor outlet and a corrugated baffle plate; the drying section comprises a top material conveying area, a middle material conveying area and a bottom material conveying area, each material conveying area comprises a feeding pore plate and a material conveying pipe, and the drying section is also provided with a drying gas inlet, a drying gas outlet, a middle baffling pore plate, a drying gas outlet and a bottom vent; the recovery section comprises a material conveying pipe, a feeding pore plate, a discharging pore plate, a cooling gas inlet, a cooling gas outlet and a baffling pore plate; the drying gas inlet is communicated with the high-temperature steam outlet. The regeneration device can reduce the energy consumption of heating regeneration, improve the pore structure of the carbon-based catalyst, improve the adsorption capacity of the carbon-based catalyst, avoid the ignition of the catalyst and reduce the chemical and physical losses of the catalyst.
Description
Technical Field
The utility model belongs to the technical field of industrial exhaust purifies, concretely relates to charcoal base catalyst regenerating unit.
Background
In the integrated removal technology of the carbon-based catalyst flue gas pollutants, the carbon-based catalyst plays the roles of an adsorbent and a catalyst, can simultaneously remove sulfur dioxide, nitrogen oxides, fluorides, smoke dust, mercury and other heavy metal harmful substances in the flue gas, basically does not consume water, and can create economic benefits for desulfurization byproducts. The carbon-based catalyst can be recycled after regeneration, belongs to a high-efficiency, energy-saving and consumption-reducing flue gas purification technology, and has wide application markets in the industries of electric power, steel, smelting, food and the like.
The regeneration method of the carbon-based catalyst commonly used in the industry at present is heating regeneration. Heating the carbon-based catalyst to more than 350 ℃ to generate chemical reaction and release SO2、CO2、H2O, and the like. The heating regeneration method does not consume water resources and cause secondary pollution, and the obtained by-products can be recycled. The existing heating regeneration process utilizes the heat exchange principle, the heat source is obtained by burning the byproduct gas in the smelting process in the steel industry and is obtained by electric heating in the coal-fired power generation, so that high energy consumption is generated, and inert gases such as nitrogen and the like are consumed in the regeneration processThe carbon-based catalyst is prevented from igniting, and in addition, the carbon-based catalyst circularly flows and participates in chemical reaction in the regeneration process, so that physical and chemical losses of the carbon-based catalyst are also caused.
Disclosure of Invention
The utility model aims to overcome the defect that carbon-based catalyst flue gas pollutant integration desorption technique was used in coal-fired power generation, provide a carbon-based catalyst regenerating unit, reduce the regenerated energy consumption of heating, improve the pore structure of carbon-based catalyst, improve its adsorption efficiency, do not additionally consume inert protective gas and also can avoid carbon-based catalyst to catch fire, reduce the chemistry and the physical loss of carbon-based catalyst.
The utility model discloses above-mentioned purpose is realized through following technical scheme:
a carbon-based catalyst regeneration device is characterized in that the top of the device is provided with a feeding port, the bottom of the device is provided with a discharging port, and a desorption section, a drying section and a recovery section are sequentially arranged from the feeding port to the discharging port;
the material inlet is internally provided with a partition plate which comprises a plurality of inlet partition plates for partitioning an inlet of the material inlet into a plurality of inlet areas and a plurality of transition section partition plates for conveying materials entering the inlet areas to the desorption section; the inlet partition plate and the transition section partition plate have the function of uniformly distributing the inflowing carbon-based catalyst on one hand, so that the distribution and the flowing state of the carbon-based catalyst are improved, the blanking breakage rate of the carbon-based catalyst is reduced, and the physical loss of the carbon-based catalyst is reduced;
the lower part of the desorption section is provided with a high-temperature water vapor inlet and a high-temperature water vapor outlet on two opposite side walls respectively, a plurality of corrugated baffle plates for guiding high-temperature water vapor to flow from the high-temperature water vapor inlet to the high-temperature water vapor outlet in a snake-shaped path are arranged between the high-temperature water vapor inlet and the high-temperature water vapor outlet, the corrugated baffle plates are arranged in parallel and are respectively positioned below the transition section partition plates, and the upper ends of the even number of corrugated baffle plates in the direction from the high-temperature water vapor inlet to the high-temperature water vapor outlet are connected with the lower ends of the corresponding transition section partition plates; the corrugated baffle plate firstly plays a role in uniformly distributing the desorbed carbon-based catalyst, improves the distribution and flow state of the carbon-based catalyst, reduces the breakage rate of the carbon-based catalyst blanking, reduces the physical loss of the carbon-based catalyst, increases the contact time of the carbon-based catalyst and water vapor in a desorption section, promotes the heat exchange and reaction of the carbon-based catalyst and the water vapor, is beneficial to desorption and activation of the carbon-based catalyst, and simultaneously reduces the height of the desorption section of the regeneration device;
the drying section comprises a top conveying area, a middle conveying area and a bottom conveying area from top to bottom, each conveying area comprises a feeding hole plate and a plurality of conveying pipes which are arranged in an array manner, the feeding hole plate is provided with feeding holes which are arranged in an array manner, the conveying pipes are arranged below the feeding hole plate and communicated with the feeding holes, and a gap is formed between every two adjacent conveying pipes; the top material conveying area comprises a top feeding hole plate and a top material conveying pipe, the middle material conveying area comprises a middle feeding hole plate and a middle material conveying pipe, and the bottom material conveying area comprises a bottom feeding hole plate and a bottom material conveying pipe; a drying gas inlet is formed in one side wall of the lower part of the middle material conveying area, a drying gas outlet is formed in the opposite side wall of the side wall where the upper part and the drying gas inlet are located, a first middle baffling pore plate and a second middle baffling pore plate for guiding a drying gas flow path are arranged at a material conveying pipe between the heights of the drying gas inlet and the drying gas outlet, the first middle baffling pore plate and the second middle baffling pore plate are sleeved on the material conveying pipe array through pores matched with the material conveying pipe, the first middle baffling pore plate is located above the second middle baffling pore plate, the first middle baffling pore plate is connected with the side wall where the drying gas outlet is located and is not connected with the side wall where the drying gas inlet is located, and the second middle baffling pore plate is connected with the side wall where the drying gas inlet is located and is not connected with the side wall where the drying; the top material conveying area is positioned above the middle material conveying area, a transition area is arranged between the top material conveying area and the middle material conveying area, and a dry gas outlet is formed in the side wall of the top material conveying area at the height of the material conveying pipe; the bottom material conveying area is positioned below the middle material conveying area, the material conveying pipes of the bottom material conveying area are respectively communicated with the material conveying pipes of the middle material conveying area, a transition area is arranged below the bottom material conveying area, and a bottom vent is arranged on the side wall of the transition area at the height; transition sections are arranged at the top and the bottom of the drying section, so that dry gas can be discharged conveniently, and the gas circulation exchange between the dry gas and the upper desorption section is prevented;
the recovery section comprises a plurality of conveying pipes which are arranged in an array manner, and a feeding hole plate and a discharging hole plate which are arranged at two ends of the plurality of conveying pipes, wherein the feeding hole plate and the discharging hole plate are respectively provided with a feeding hole and a discharging hole which are arranged in an array manner, the feeding hole and the discharging hole are respectively communicated with the conveying pipes, and a gap is formed between every two adjacent conveying pipes; a cooling gas inlet is formed in one side wall of the lower portion of the recovery section, a cooling gas outlet is formed in the upper portion of the opposite side wall of the side wall where the cooling gas inlet is located, a first baffling pore plate and a second baffling pore plate which are used for guiding a cooling gas flow path are arranged at the position of a material conveying pipe between the heights of the cooling gas inlet and the cooling gas outlet, the first baffling pore plate and the second baffling pore plate are sleeved on the material conveying pipe array through holes matched with the material conveying pipe, the first baffling pore plate is located above the second baffling pore plate, the first baffling pore plate is connected with the side wall where the cooling gas outlet is located and is not connected with the side wall where the cooling gas inlet is located, and the second baffling pore plate is connected with the side wall where the cooling gas inlet is located and;
the discharge port is provided with a slide carriage which is obliquely arranged; the slide carriage has the advantages that the slide carriage has the function of uniformly distributing the flowing carbon-based catalyst on one hand, the distribution and the flowing state of the carbon-based catalyst are improved, the blanking breakage rate of the carbon-based catalyst is reduced, and the physical loss of the carbon-based catalyst is reduced;
wherein, the drying gas inlet of the drying section is communicated with the high-temperature steam outlet of the desorption section. The regenerated gas discharged from the high-temperature steam outlet has the temperature of 200-300 ℃, can be reused and saves energy.
Further, the horizontal distance b between two folding points of the single corrugated baffle plate is larger than the horizontal distance a between two adjacent corrugated baffle plates. Therefore, the carbon-based catalyst can be prevented from taking a straight path which is vertically downward instead of a snake-shaped path when entering the corrugated baffle plate, and the carbon-based catalyst is prevented from flowing smoothly and falling and breaking.
Furthermore, included angles α and β between the corrugated baffle plate and the horizontal plane are both larger than the repose angle of the carbon-based catalyst, so that the carbon-based catalyst can smoothly flow.
Furthermore, the smaller included angles between the transition section partition plate and the discharge port slide carriage and the horizontal plane are larger than the repose angle of the carbon-based catalyst, so that the carbon-based catalyst can smoothly flow.
Furthermore, the desorption section is provided with a high-temperature water vapor inlet hole plate and a high-temperature water vapor outlet hole plate on the inner side wall corresponding to the high-temperature water vapor inlet and the high-temperature water vapor outlet.
Further, high temperature steam inlet orifice plate and high temperature steam outlet orifice plate include porous orifice plate respectively, locate the orifice plate and go up along and with desorption section inner wall connection avoid the guide plate of material delay to and be used for fixing the support frame at desorption section inner wall with the orifice plate.
Furthermore, a charging transition gap is arranged between the bottom of the slide carriage and the inclined wall of the discharge hole and used for discharging the carbon-based catalyst.
The regeneration process adopting any one of the carbon-based catalyst regeneration devices comprises the following steps:
(1) the carbon-based catalyst is divided by a feed inlet through an inlet partition plate and a transition section partition plate, enters a corrugated baffle plate of an adsorption section, high-temperature steam of 500 ℃ led out after primary work done by a steam turbine of a thermal power plant is input into a desorption section through a high-temperature steam inlet, passes through the corrugated baffle plate, passes through the carbon-based catalyst in the adsorption section according to a snake-shaped path, and is discharged together with regeneration gas through a high-temperature steam outlet; high-temperature water vapor after the steam turbine of the coal-fired power plant does work primarily is led out to heat and regenerate the carbon-based catalyst, so that electric heating is avoided, energy consumption is reduced, the high-temperature water vapor has an activating effect, the pore structure of the carbon-based catalyst can be improved, and the adsorption capacity of the carbon-based catalyst on pollutants is further improved; in addition, the carbon-based catalyst can prevent ignition without inert protective gas in a water vapor atmosphere, and the water vapor can dissolve and absorb sulfuric acid adsorbed on the surface of the carbon-based catalyst, so that the consumption of chemical reaction of the carbon-based catalyst in the regeneration process is reduced while the regeneration of the carbon-based catalyst is promoted;
(2) the desorbed carbon-based catalyst enters a top material conveying pipe through a top feeding pore plate of the drying section, falls into a charging gap transition region, enters a middle material conveying pipe through a middle feeding pore plate, and enters a drying gas inlet, and passes through the middle part of the drying section through a middle baffling pore plate according to a serpentine path, exchanges heat with the carbon-based catalyst in the middle material conveying pipe, dries the carbon-based catalyst and then is discharged from a drying gas outlet, wherein the temperature of the regeneration gas discharged from a high-temperature steam outlet is 200-300 ℃; the dried carbon-based catalyst enters a bottom material conveying pipe from a bottom feeding pore plate and falls into a charging gap transition area; gas volatilized by the carbon-based catalyst in the drying process is discharged from a dry gas outlet;
(3) the carbon-based catalyst in the transition area of the charging gap at the bottom of the drying section enters the conveying pipe through a feeding pore plate of the recovery section, cooling gas enters the recovery section through a cooling gas inlet, winds through a deflection pore plate, exchanges heat with the carbon-based catalyst in the conveying pipe according to a serpentine path and then is discharged from a cooling gas outlet, and the carbon-based catalyst recovered to about 100 ℃ is discharged from a discharge port through a discharge pore plate and a slide carriage; when the carbon-based catalyst moves from top to bottom in the desorption section, the materials leaked from the high-temperature steam inlet pore plate and the high-temperature steam outlet pore plate fall down from the gap between the support frames and enter the drying section.
Has the advantages that:
the utility model discloses well division board, ripple baffling board and carriage apron one side are to flowing in, the charcoal base catalyst of desorption and outflow plays the equipartition effect, the distribution and the flow state of charcoal base catalyst have been improved, on the other hand has reduced the percentage of damage of charcoal base catalyst blanking, the physical loss of charcoal base catalyst has been reduced, the ripple baffling board has still increased the contact time of charcoal base catalyst and vapor in the desorption section, the heat transfer and the reaction of the two have been promoted, also reduced the height that regenerating unit detached the section when being favorable to charcoal base catalyst desorption and activation. The carbon-based catalyst regeneration device leads high-temperature steam after the steam turbine of the coal-fired power plant does work primarily out to heat and regenerate the carbon-based catalyst, avoids electric heating, reduces energy consumption, has an activating effect on the high-temperature steam, can improve the pore structure of the carbon-based catalyst, and further improves the adsorption capacity of the carbon-based catalyst on pollutants; in addition, the carbon-based catalyst can prevent ignition without inert shielding gas in a water vapor atmosphere, and the water vapor can dissolve and absorb sulfuric acid adsorbed on the surface of the carbon-based catalyst, so that the regeneration of the carbon-based catalyst is promoted, and the consumption of chemical reaction of the carbon-based catalyst in the regeneration process is reduced.
Drawings
FIG. 1 is a view showing the configuration of a carbon-based catalyst regeneration apparatus;
FIG. 2 is an internal structural view of a carbon-based catalyst regeneration apparatus;
FIG. 3 is an internal structural view of a desorption section of the carbon-based catalyst regeneration apparatus;
FIG. 4 is an internal structural view of a drying section of a carbon-based catalyst regeneration apparatus;
FIG. 5 is a view showing the internal structure of the recovery section and the discharge port of the carbon-based catalyst regeneration apparatus;
FIG. 6 is a schematic view of a partition plate of a material inlet and a corrugated baffle plate of a desorption section of a carbon-based catalyst regeneration device;
FIG. 7 is a schematic drawing showing the partial dimensions of a corrugated baffle;
FIG. 8 is a schematic view of a high temperature steam inlet and outlet pore plate in the desorption section of the carbon-based catalyst regeneration device;
FIG. 9 is a schematic diagram of a top feed orifice plate, a middle baffle orifice plate, and a bottom feed orifice plate in a drying section of a carbon-based catalyst regeneration device;
FIG. 10 is a schematic view of a feed orifice plate, a baffle orifice plate, a discharge orifice plate, and a discharge port slide carriage in the recovery section of a carbon-based catalyst regeneration device;
wherein, 1 is a feeding port, 2 is an adsorption section, 3 is a drying section, 4 is a recovery section, 5 is a discharging port, 6 is a partition plate, 7 is a corrugated baffle plate, 8 is a middle conveying pipe, 9 is a conveying pipe, 10 is a slide carriage, 11 is a high-temperature steam inlet hole plate, 12 is a high-temperature steam outlet hole plate, 13 is a high-temperature steam inlet, 14 is a high-temperature steam outlet, 15 is a drying gas outlet, 16 is a top conveying pipe, 17 is a drying gas outlet, 18 is a bottom conveying pipe, 19 is a drying gas inlet, 20 is a bottom vent, 21 is a feeding hole plate, 22 is a cooling gas outlet, 23-1 is a first baffling hole plate, 23-2 is a second baffle plate, 24 is a discharging hole plate, 25 is a cooling gas inlet, 26 is an inlet baffle plate, 27 is a transition section baffle plate, 28 is a guide plate, 29 is a hole plate, 30 is a support frame, and 31 is a top feeding hole plate, 32 is a middle feed orifice, 33-1 is a first middle deflection orifice, 33-2 is a second middle deflection orifice, and 34 is a bottom feed orifice.
Detailed Description
The following detailed description will specifically describe the essential contents of the present invention with reference to the accompanying drawings and examples, but not limit the scope of the present invention.
As shown in fig. 1, the top of the carbon-based catalyst regeneration device is a feeding port 1, the bottom thereof is a discharging port 5, and a desorption section 2, a drying section 3 and a recovery section 4 are sequentially arranged from the feeding port 1 to the discharging port 5.
As shown in fig. 2 and 6, the material inlet 1 is provided with a partition plate 6 inside, which comprises a plurality of inlet partition plates 26 for dividing the inlet of the material inlet 1 into a plurality of inlet areas, and a plurality of transition section partition plates 27 for conveying the material entering the inlet areas to the desorption section 2. In addition, the smaller included angle between the transition section partition plate 27 and the horizontal plane is larger than the repose angle of the carbon-based catalyst, so that the carbon-based catalyst can smoothly flow. The inlet partition plate 26 and the transition section partition plate 27 have the function of uniformly distributing the inflowing carbon-based catalyst on one hand, improve the distribution and the flowing state of the carbon-based catalyst, reduce the breakage rate of the carbon-based catalyst blanking on the other hand, and reduce the physical loss of the carbon-based catalyst.
As shown in fig. 3, a high-temperature steam inlet 13 and a high-temperature steam outlet 14 are respectively arranged on two opposite side walls of the lower part of the desorption section 2, a plurality of corrugated baffle plates 7 for guiding high-temperature steam to flow from the high-temperature steam inlet 13 to the high-temperature steam outlet 14 in a serpentine path are arranged between the high-temperature steam inlet 13 and the high-temperature steam outlet 14, the plurality of corrugated baffle plates 7 are arranged in parallel and are respectively positioned below a plurality of transition section partition plates 27, the upper end of the even number of corrugated baffle plates 7 in the direction from the high-temperature steam inlet 13 to the high-temperature steam outlet 14 is connected with the lower end of the corresponding transition section partition plate 27 (as shown in fig. 6), the desorption section 2 is provided with a high-temperature steam inlet pore plate 11 and a high-temperature steam outlet pore plate 12 on the inner side wall corresponding to the high-temperature steam inlet 13 and the high-temperature steam outlet 14, the high-temperature steam inlet pore plate 11 and the high-temperature steam outlet pore plate 12 respectively comprise a porous serpentine 29, a flow baffle plate 28 connected with the inner wall of the desorption section 2 along the porous serpentine pore plate 29 and connected with the inner wall of the desorption section 2 to avoid material retention, and a support plate 30 for fixing the desorption section 2, the catalyst is larger than a linear corrugated baffle plate, the corrugated baffle plate is used for reducing the horizontal corrugated baffle plate, the horizontal corrugated baffle plate is used for reducing the horizontal baffle plate, the horizontal baffle plate is used for reducing the distance between the horizontal distance of the horizontal distance between.
As shown in fig. 4 and 9, the drying section 3 includes, from top to bottom, a top feeding area, a middle feeding area and a bottom feeding area, each feeding area includes a feeding hole plate and a plurality of feeding pipes arranged in an array, the feeding hole plate is provided with feeding holes arranged in an array, the feeding pipes are arranged below the feeding hole plate and communicated with the feeding holes, and a gap is formed between adjacent feeding pipes. The top feeding area comprises a top perforated feed plate 31 and a top feed pipe 16, the middle feeding area comprises a middle perforated feed plate 32 and a middle feed pipe 8, and the bottom feeding area comprises a bottom perforated feed plate 34 and a bottom feed pipe 18. A drying gas inlet 19 is arranged on one side wall of the lower part of the middle material conveying area, a drying gas outlet 17 is arranged on the opposite side wall of the upper part and the drying gas inlet 19, a first middle baffling pore plate 33-1 and a second middle baffling pore plate 33-2 for guiding the flow path of the drying gas are arranged at the material conveying pipe between the heights of the drying gas inlet 19 and the drying gas outlet 17, the first middle deflection orifice plate and the second middle deflection orifice plate are sleeved on the feed delivery pipe 8 array through the orifices matched with the feed delivery pipe, the first middle deflection orifice plate 33-1 is positioned above the second middle deflection orifice plate 33-2, the first middle deflection orifice plate 33-1 is connected with the side wall of the drying air outlet 17 and is not connected with the side wall of the drying air inlet 19, and the second middle deflection orifice plate 33-2 is connected with the side wall of the drying air inlet 19 and is not connected with the side wall of the drying air outlet 17. The top feeding area is positioned above the middle feeding area, a transition area is arranged between the top feeding area and the middle feeding area, and a dry gas outlet 15 is arranged on the side wall of the top feeding area at the height of the feeding pipe. The bottom material conveying area is positioned below the middle material conveying area, the material conveying pipes of the bottom material conveying area are respectively communicated with the material conveying pipes of the middle material conveying area, a transition area is arranged below the bottom material conveying area, and a bottom vent 20 is arranged on the side wall of the transition area at the height. The drying gas inlet 19 of the drying section 3 is communicated with the high-temperature water vapor outlet 14 of the desorption section 2 (as shown in fig. 1 and 2). The regeneration gas discharged from the high-temperature steam outlet 14 has the temperature of 200-300 ℃, can be reused and saves energy. The top and the bottom of drying section 3 are equipped with the changeover portion, are convenient for dry gas to discharge to prevent dry gas and upper portion desorption section gas flow exchange.
As shown in fig. 5 and 10, the recovery section 4 includes a plurality of material conveying pipes 9 arranged in an array, and a feeding hole plate 21 and a discharging hole plate 24 provided at two ends of the plurality of material conveying pipes, wherein the feeding hole plate 21 and the discharging hole plate 24 are respectively provided with feeding holes and discharging holes arranged in an array, the feeding holes and the discharging holes are respectively communicated with the material conveying pipes 9, and a gap is provided between adjacent material conveying pipes 9. The lower side wall of the recovery section 4 is provided with a cooling air inlet 25, the upper part of the opposite side wall of the side wall where the cooling air inlet 25 is located is provided with a cooling air outlet 22, the position of the conveying pipe 9 between the heights of the cooling air inlet 25 and the cooling air outlet 22 is provided with a first baffle orifice plate 23-1 and a second baffle orifice plate 23-2 which are used for guiding the flow path of the cooling air, the first baffle orifice plate and the second baffle orifice plate are sleeved on the array of the conveying pipe 9 through the orifices matched with the conveying pipe, the first baffle orifice plate 23-1 is positioned above the second baffle orifice plate 23-2, the first baffle orifice plate 23-1 is connected with the side wall where the cooling air outlet 22 is located and is not connected with the side wall where the cooling air inlet 25 is located, and the second baffle orifice plate 23-2 is connected with the side wall where the cooling air inlet 25 is located and is not connected with the side wall where the cooling air outlet 22.
As shown in fig. 2, 5 and 10, the discharge port 5 is provided with a slide carriage 10 which is arranged obliquely, and a small included angle between the slide carriage 10 and the horizontal plane is larger than a repose angle of the carbon-based catalyst, so that the carbon-based catalyst can flow smoothly. The slide carriage 10 has the function of uniformly distributing the flowing carbon-based catalyst on one hand, improves the distribution and the flowing state of the carbon-based catalyst, reduces the breaking rate of the carbon-based catalyst blanking on the other hand, and reduces the physical loss of the carbon-based catalyst. In addition, a charging transition gap is arranged between the bottom of the slide carriage 10 and the inclined wall of the discharge port 5 and is used for discharging the carbon-based catalyst.
The regeneration process of the carbon-based catalyst regeneration device comprises the following steps:
(1) the carbon-based catalyst is divided by a feed inlet 1 through an inlet partition plate 26 and a transition section partition plate 27, enters a corrugated baffle plate 7 of an adsorption section 2, high-temperature steam of 500 ℃ led out after primary work done by a steam turbine of a thermal power plant is input into a desorption section 2 through a high-temperature steam inlet 13 and a high-temperature steam inlet porous plate 11, passes through the corrugated baffle plate 7, passes through the carbon-based catalyst in the adsorption section 2 according to a snake-shaped path, passes through a high-temperature steam outlet porous plate 12 together with regeneration gas, and is discharged from a high-temperature steam outlet 14; high-temperature water vapor after the steam turbine of the coal-fired power plant does work primarily is led out to heat and regenerate the carbon-based catalyst, so that electric heating is avoided, energy consumption is reduced, the high-temperature water vapor has an activating effect, the pore structure of the carbon-based catalyst can be improved, and the adsorption capacity of the carbon-based catalyst on pollutants is further improved; in addition, the carbon-based catalyst can prevent ignition without inert protective gas in a water vapor atmosphere, and the water vapor can dissolve and absorb sulfuric acid adsorbed on the surface of the carbon-based catalyst, so that the consumption of chemical reaction of the carbon-based catalyst in the regeneration process is reduced while the regeneration of the carbon-based catalyst is promoted;
(2) the desorbed carbon-based catalyst enters a top material conveying pipe 16 through a top feeding pore plate 31 of the drying section 3, falls into a charging gap transition region, enters a middle material conveying pipe 8 through a middle feeding pore plate 32, the regenerated gas discharged from a high-temperature steam outlet 14 has the temperature of 200-300 ℃, enters from a dried gas inlet 19, passes through the middle part of the drying section 3 through middle deflection pore plates 33-1 and 33-2 according to a snake-shaped path, exchanges heat with the carbon-based catalyst in the middle material conveying pipe 8, dries the carbon-based catalyst and then is discharged from a dried gas outlet 17; the dried carbon-based catalyst enters the bottom material conveying pipe 18 from the bottom feeding hole plate 34 and falls into a transition area of a charging gap; gas volatilized by the carbon-based catalyst in the drying process is discharged from a dry gas outlet 15;
(3) the carbon-based catalyst in the transition region of the loading gap at the bottom of the drying section 3 enters the conveying pipe 9 through the feeding pore plate 21 of the recovery section 4, the cooling gas enters the recovery section through the cooling gas inlet 25, winds through the baffling pore plates 23-1 and 23-2, exchanges heat with the carbon-based catalyst in the conveying pipe 9 according to a serpentine path and is discharged from the cooling gas outlet 22, and the carbon-based catalyst recovered to about 100 ℃ is discharged from the discharge port 5 through the slide carriage 10 through the discharge pore plate 24; when the carbon-based catalyst moves from top to bottom in the desorption section 2, the materials leaked from the high-temperature steam inlet pore plate 11 and the high-temperature steam outlet pore plate 12 fall from the gap between the support frames 22 and enter the drying section 3.
According to the invention, the partition plate, the corrugated baffle plate and the slide carriage have an effect of uniformly distributing the carbon-based catalyst flowing in, desorbing and flowing out, so that the distribution and flowing state of the carbon-based catalyst are improved, the breakage rate of carbon-based catalyst blanking is reduced, the physical loss of the carbon-based catalyst is reduced, the corrugated baffle plate also increases the contact time of the carbon-based catalyst and water vapor in a desorption section, the heat exchange and reaction of the carbon-based catalyst and the water vapor are promoted, the desorption and activation of the carbon-based catalyst are facilitated, and the height of the desorption section of the regeneration device is reduced. The carbon-based catalyst regeneration device leads high-temperature steam after the steam turbine of the coal-fired power plant does work primarily out to heat and regenerate the carbon-based catalyst, avoids electric heating, reduces energy consumption, has an activating effect on the high-temperature steam, can improve the pore structure of the carbon-based catalyst, and further improves the adsorption capacity of the carbon-based catalyst on pollutants; in addition, the carbon-based catalyst can prevent ignition without inert shielding gas in a water vapor atmosphere, and the water vapor can dissolve and absorb sulfuric acid adsorbed on the surface of the carbon-based catalyst, so that the regeneration of the carbon-based catalyst is promoted, and the consumption of chemical reaction of the carbon-based catalyst in the regeneration process is reduced.
The purpose of the above-described embodiments is to specifically describe the material of the present invention, but those skilled in the art should understand that the protection scope of the present invention should not be limited to the specific embodiments.
Claims (7)
1. The utility model provides a charcoal base catalyst regenerating unit, the device top is the pan feeding mouth, and the bottom is the discharge gate, its characterized in that: a desorption section, a drying section and a recovery section are sequentially arranged from the feeding port to the discharging port;
the material inlet is internally provided with a partition plate which comprises a plurality of inlet partition plates for partitioning an inlet of the material inlet into a plurality of inlet areas and a plurality of transition section partition plates for conveying materials entering the inlet areas to the desorption section;
the lower part of the desorption section is provided with a high-temperature water vapor inlet and a high-temperature water vapor outlet on two opposite side walls respectively, a plurality of corrugated baffle plates for guiding high-temperature water vapor to flow from the high-temperature water vapor inlet to the high-temperature water vapor outlet in a snake-shaped path are arranged between the high-temperature water vapor inlet and the high-temperature water vapor outlet, the corrugated baffle plates are arranged in parallel and are respectively positioned below the transition section partition plates, and the upper ends of the even number of corrugated baffle plates in the direction from the high-temperature water vapor inlet to the high-temperature water vapor outlet are connected with the lower ends of the corresponding transition section partition plates;
the drying section comprises a top conveying area, a middle conveying area and a bottom conveying area from top to bottom, each conveying area comprises a feeding hole plate and a plurality of conveying pipes which are arranged in an array manner, the feeding hole plate is provided with feeding holes which are arranged in an array manner, the conveying pipes are arranged below the feeding hole plate and are communicated with the feeding holes, and a gap is formed between every two adjacent conveying pipes of the drying section; a drying gas inlet is formed in one side wall of the lower part of the middle material conveying area, a drying gas outlet is formed in the opposite side wall of the side wall where the upper part and the drying gas inlet are located, a first middle baffling pore plate and a second middle baffling pore plate for guiding a drying gas flow path are arranged at a material conveying pipe between the heights of the drying gas inlet and the drying gas outlet, the first middle baffling pore plate and the second middle baffling pore plate are sleeved on the material conveying pipe array through pores matched with the material conveying pipe, the first middle baffling pore plate is located above the second middle baffling pore plate, the first middle baffling pore plate is connected with the side wall where the drying gas outlet is located and is not connected with the side wall where the drying gas inlet is located, and the second middle baffling pore plate is connected with the side wall where the drying gas inlet is located and is not connected with the side wall where the drying; the top material conveying area is positioned above the middle material conveying area, a transition area is arranged between the top material conveying area and the middle material conveying area, and a dry gas outlet is formed in the side wall of the top material conveying area at the height of the material conveying pipe; the bottom material conveying area is positioned below the middle material conveying area, the material conveying pipes of the bottom material conveying area are respectively communicated with the material conveying pipes of the middle material conveying area, a transition area is arranged below the bottom material conveying area, and a bottom vent is arranged on the side wall of the transition area at the height;
the recovery section comprises a plurality of conveying pipes which are arranged in an array manner, and a feeding hole plate and a discharging hole plate which are arranged at two ends of the plurality of conveying pipes, wherein the feeding hole plate and the discharging hole plate are respectively provided with a feeding hole and a discharging hole which are arranged in an array manner, the feeding hole and the discharging hole are respectively communicated with the conveying pipes, and a gap is arranged between every two adjacent conveying pipes of the recovery section; a cooling gas inlet is formed in one side wall of the lower portion of the recovery section, a cooling gas outlet is formed in the upper portion of the opposite side wall of the side wall where the cooling gas inlet is located, a first baffling pore plate and a second baffling pore plate which are used for guiding a cooling gas flow path are arranged at the position of a material conveying pipe between the heights of the cooling gas inlet and the cooling gas outlet, the first baffling pore plate and the second baffling pore plate are sleeved on the material conveying pipe array through holes matched with the material conveying pipe, the first baffling pore plate is located above the second baffling pore plate, the first baffling pore plate is connected with the side wall where the cooling gas outlet is located and is not connected with the side wall where the cooling gas inlet is located, and the second baffling pore plate is connected with the side wall where the cooling gas inlet is located and;
the discharge port is provided with a slide carriage which is obliquely arranged;
wherein, the drying gas inlet of the drying section is communicated with the high-temperature steam outlet of the desorption section.
2. The regeneration device according to claim 1, wherein: the horizontal distance b between two folding points of the single corrugated baffle plate is larger than the horizontal distance a between two adjacent corrugated baffle plates.
3. The regenerator of claim 1 wherein the corrugated baffles are at angles α and β greater than the angle of repose of the carbon-based catalyst.
4. The regeneration device according to claim 1, wherein: the smaller included angles between the transition section clapboard and the discharge port slide carriage and the horizontal plane are all larger than the repose angle of the carbon-based catalyst.
5. The regeneration device according to claim 1, wherein: and a high-temperature steam inlet hole plate and a high-temperature steam outlet hole plate are arranged on the inner side walls of the desorption section at the high-temperature steam inlet and the high-temperature steam outlet.
6. The regeneration device according to claim 5, wherein: the high-temperature water vapor inlet pore plate and the high-temperature water vapor outlet pore plate respectively comprise porous pore plates, guide plates and a support frame, the guide plates are arranged on the upper edges of the pore plates and connected with the inner wall of the desorption section to avoid material retention, and the support frame is used for fixing the pore plates on the inner wall of the desorption section.
7. The regeneration device according to claim 1, wherein: and a charging transition gap is arranged between the bottom of the slide carriage and the inclined wall of the discharge port.
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| CN201920796942.3U CN210357199U (en) | 2019-05-30 | 2019-05-30 | Carbon-based catalyst regenerating unit |
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| CN201920796942.3U CN210357199U (en) | 2019-05-30 | 2019-05-30 | Carbon-based catalyst regenerating unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038646A (en) * | 2019-05-30 | 2019-07-23 | 国电环境保护研究院有限公司 | A kind of carbon base catalyst regenerating unit and technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038646A (en) * | 2019-05-30 | 2019-07-23 | 国电环境保护研究院有限公司 | A kind of carbon base catalyst regenerating unit and technique |
| CN110038646B (en) * | 2019-05-30 | 2024-01-26 | 国电环境保护研究院有限公司 | Carbon-based catalyst regeneration device and process |
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