CN106345291B - Rotary-type low temperature SCR denitration and on-line continuous regenerating unit and its application - Google Patents
Rotary-type low temperature SCR denitration and on-line continuous regenerating unit and its application Download PDFInfo
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- CN106345291B CN106345291B CN201610784003.8A CN201610784003A CN106345291B CN 106345291 B CN106345291 B CN 106345291B CN 201610784003 A CN201610784003 A CN 201610784003A CN 106345291 B CN106345291 B CN 106345291B
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- 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
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
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- 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
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
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- 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
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- 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
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- B01D—SEPARATION
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- B01D53/34—Chemical or biological purification of waste gases
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Abstract
The present invention relates to rotary-type low temperature SCR denitration and on-line continuous regenerating unit and its applications, device includes runner catalyst body unit, regeneration air stream conveying fan and regeneration air stream heater, runner catalyst body unit includes the catalyst runner of intermittent rotary and the inlet end gas partitions case for being separately positioned on catalyst runner both ends and outlet side gas partitions case, and catalyst runner is isolated low-temperature SCR reaction zone, catalyst regeneration pre-add hot-zone and hot recycling area jointly by inlet end gas partitions case, outlet side gas partitions case in a circumferential direction；Device is applied to the low-temperature denitration processing including industrial furnace smokes such as coking, steel sintering, aluminium oxide calcining, ceramics and glass firings.Compared with prior art, the present invention utilizes the rotary wheel device of unique design, can synchronously complete the processing of flue gas low-temperature SCR denitration and the on-line continuous regeneration of catalyst, low energy consumption, and catalyst long service life has a good application prospect.
Description
Technical field
The invention belongs to fume treatment technical field, it is related to a kind of rotary-type low temperature SCR denitration and on-line continuous regeneration dress
It sets and its applies.
Background technique
Nitrogen oxides is one of main atmosphere pollution, can cause the weldings such as acid rain, haze, influence human health
A series of problems.Therefore, the improvement of nitrogen oxides is the emphasis of current air contaminant treatment.Wherein, coking, steel sintering,
The nitrogen oxides of the industrial furnace smokes discharges such as aluminium oxide calcining, ceramics and glass firing has caused more and more to pay close attention to.Often
Catalyst used in the catalytic reduction method denitration (SCR) of rule only could long-term and effective operation at 300 DEG C or more.And for above-mentioned several
A industry since flue-gas temperature is generally below 250 DEG C, and contains certain catalyst harmful toxic matter, and conventional catalyst is difficult to
Adapt to this low temperature condition.Therefore, exploitation low-temperature SCR catalyst is the hot spot studied at present.
However, for most of low temperature catalysts, since its own easily adsorbs more harmful constituent or there are quilts
The reasons such as ammonium salt covering, and cause catalyst poisoning or failure.Therefore, design suitable low-temperature SCR technology reaction and
Line regenerating unit is to promote this technology including industry kilns such as coking, steel sintering, aluminium oxide calcining, ceramics and glass firings
The key of the low-temperature denitration field application of kiln gas.
Authorization Notice No. is that the Chinese invention patent of CN103816796B discloses a kind of low temperature coke oven flue gas desulfurization systems
Denitrating technique, by spraying into fluidised NaHCO in stack gases conveyance conduit3Fine powder, dry removal coke oven flue exhaust gas
The SO of the middle overwhelming majority2, while denitrating catalyst structure sheaf being used in combination with ammonia catalyst structure layer is removed, efficient removal coke oven
NO in flue gasx, denitrating catalyst is using filter tubular structure, except ammonia catalyst uses V-shape structure；The technique is by air inducing list
The system realization that member, desulfurization unit, ammonia preparation unit, denitration are formed except ammonia unit, compressed air unit, particulate matter supply unit
NO_x Reduction by Effective, desulfurization.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of can effectively improve to urge
Agent service life significantly reduces rotary-type low temperature SCR denitration and on-line continuous regenerating unit and its application of energy consumption.
The purpose of the present invention can be achieved through the following technical solutions：
Rotary-type low temperature SCR denitration and on-line continuous regenerating unit, the device include runner catalyst body unit, Yi Jiyu
Regeneration air stream conveying fan that runner catalyst body unit matching uses, regeneration air stream heater, the runner catalyst body
Unit include the catalyst runner of intermittent rotary and the inlet end gas partitions case for being separately positioned on catalyst runner both ends and
Outlet side gas partitions case, the inlet end gas partitions case, outlet side gas partitions case are jointly by catalyst runner in circle
Low-temperature SCR reaction zone, catalyst regeneration pre-add hot-zone and hot recycling area are isolated in circumferential direction.
The catalyst runner include both ends open and with hollow cavity shell, plug inner cylinder in the shell with
It is and N number of along the axial uniformly distributed radial separations plate between inner cylinder and shell of shell, wherein N is integer, and N >=2, described
The sealing of inner cylinder both ends, and separation case sealing surface is respectively set.
N is integer, and 6≤N≤15 as a preferred technical solution,.
Cavity between shell and inner cylinder is separated into N number of catalyst loading area by the radial separations plate, and N is integer,
And N >=2.
Graininess SCR catalyst, honeycomb-shaped SCR catalyst or corrugated plate shape are filled in the catalyst loading area
One of SCR catalyst is a variety of.
The side of the inlet end gas partitions case is equipped with regenerated heat airflow inlet, and the other side covers a catalyst dress
Area is carried, the first hot recycling section is formed；The side of the outlet side gas partitions case is equipped with regenerated heat air stream outlet, the other side
Two neighboring catalyst loading area is covered simultaneously, one of them capped catalyst loading area is formed and the first hot recycling section
The second hot recycling section being connected, and hot recycling area is collectively formed in the first hot recycling section and the second hot recycling section, separately
One capped catalyst loading area then forms catalyst regeneration pre-add hot-zone, and remaining uncovered catalyst loading area
Collectively form low-temperature SCR reaction zone.
The diameter of the inner cylinder is 400-1200mm, and the internal diameter of the shell is 1200-5000mm, the catalysis
The effective length of agent runner is 2000-4000mm.
The catalyst runner both ends further respectively have to be connected with inlet end gas partitions case, outlet side gas partitions case
The air inlet end cap and outlet end cap connect, the catalyst runner and air inlet end cap, outlet end cap use mechanical seal.
Spring pressure is all made of between the inlet end gas partitions case, outlet side gas partitions case and catalyst runner
Tightly, when needing to rotate, separation case sealing surface and the section of catalyst runner is pulled open using external force, prevent separation case sealing surface
Abrasion, after rotateing in place, removal external force makes inlet end gas partitions case, outlet side gas partitions case and catalyst runner weight
It is new to compress sealing.
In the operating condition, the hot gas that temperature is 350-400 DEG C is flowed through into inlet end gas partitions case and enters hot recycling area,
It is back to catalyst regeneration pre-add hot-zone through outlet side gas partitions again, regeneration thermal current is formed, is back to catalyst runner
Inlet end is mixed with main body flue gas, the 2-10% of flue gas flow based on the flow of the regeneration thermal current.
The thermal current is mainly the gas after utilizing electric heating or fuel heating, temperature to rise to 350-400 DEG C.
Rotary-type low temperature SCR denitration and on-line continuous regenerating unit are applied to including coking, steel sintering, aluminium oxide roasting
The low-temperature denitration processing of the industrial furnace smokes such as burning, ceramics and glass firing.
In the present invention, inner cylinder, shell and the radial separations plate of the catalyst runner are all made of heating resisting metal material system
Standby to form, catalyst runner is using artificial periodically rotation, motor gear driving or roller bearing friction-driven, and rotation can be cut just every time
A zoning unit (i.e. catalyst loading area) is changed, is divided between switching time 1-10 hours, it is main according to catalyst self performance
And depending on flue-gas temperature condition.
Vertical or horizontal mounting means can be used in apparatus of the present invention.The inlet end of the catalyst runner is equipped with injection
Reducing agent used in denitration is ejected, is uniformly mixed into flue gas by device, the injector.The reducing agent is ammonia.This
SCR catalyst used by inventing is between 150-250 DEG C, catalyst denitration activity with higher.
It should be noted that if keeping catalyst runner itself static, and make the end cap and air-flow separation case of runner two sides
The switching mode rotated, principle is still identical as the present invention, belongs to the scope of protection of the present invention.
Compared with prior art, the present invention utilizes the rotary wheel device of unique design, can synchronously complete flue gas low-temperature SCR denitration
The regeneration of the on-line continuous of processing and catalyst avoids catalyst because adsorbing more harmful constituent or by reasons such as ammonium salt coverings
Lead to poisoning or failure phenomenon caused by and, substantially increases the service life of catalyst；Regeneration air stream is only shallow bid heat simultaneously
The gas of air or main body flue gas after regeneration air stream heater is heated to 350-400 DEG C, regeneration pre-add thermal current are by heat
The gas of renewing zone outflow makes regeneration air stream take full advantage of the heat of original flue gas by reflux cycle, regenerates pre-add hot gas
Stream takes full advantage of the waste heat of regeneration air stream, saves considerably energy consumption；It simultaneously can be according to different flue gases the characteristics of, neatly adjusts
The conversion frequency of the different zones of runner.
Detailed description of the invention
Fig. 1 is operation principle schematic diagram of the present invention；
Fig. 2 is catalyst runner assembling structure schematic diagram；
Fig. 3 is the structural schematic diagram of catalyst runner inlet end；
Fig. 4 is the structural schematic diagram of catalyst runner outlet side；
Fig. 5 is the cross section structure schematic diagram of inlet end gas partitions case；
Fig. 6 is the cross section structure schematic diagram of outlet side gas partitions case.
In figure：1, regeneration air stream conveying fan, 2, regeneration air stream heater, 3, runner catalyst body unit, 4-1, catalysis
Agent runner, 4-2, inlet end gas partitions case, 4-3, outlet side gas partitions case, 5, hot recycling area, 6, catalyst regeneration pre-add
Hot-zone, 7, shell, 8, inner cylinder, 9, radial separations plate, 10, catalyst loading area.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1：
As shown in Figures 1 to 6, rotary-type low temperature SCR denitration and on-line continuous regenerating unit, including runner catalyst body list
Member 3, regeneration air stream conveying fan 1 and regeneration air stream heater 2.Runner catalyst body unit 3 includes the catalyst of intermittent rotary
The runner 4-1 and inlet end gas partitions case 4-2 and outlet side gas partitions for being separately positioned on the both ends catalyst runner 4-1
Case 4-3, inlet end gas partitions case 4-2, outlet side gas partitions case 4-3 jointly by catalyst runner 4-1 in a circumferential direction
Isolate low-temperature SCR reaction zone, catalyst regeneration pre-add hot-zone 6 and hot recycling area 5.
Wherein, catalyst runner 4-1 is by inner cylinder 8, shell 7, radial separations plate 9, catalyst loading area 10 and corresponding close
Seal the components such as section composition.Cavity between shell 7 and inner cylinder 8 is separated into multiple catalyst loading areas 10 by radial separations plate 9,
Corresponding low-temperature SCR catalyst is embedded in each catalyst loading area 10.
The both ends of catalyst runner 4-1 are respectively equipped with air inlet end cap and outlet end cap, are respectively provided with inlet end gas partitions
Case 4-2, outlet side gas partitions case 4-3, to keep apart main body flue gas with regeneration air stream, thus by catalyst runner 4-1
Low-temperature SCR reaction zone, catalyst regeneration pre-add hot-zone 6 and hot recycling area 5 are isolated in a circumferential direction.Catalyst regeneration pre-add
The region area in hot-zone 6 and hot recycling area 5 respectively with a zoning unit (i.e. catalyst loading area 10) of catalyst runner 4-1
Region area it is identical, the region area of low-temperature SCR reaction zone is identical as the region area of remaining zoning unit.
Gas of the coking flue gas that regeneration air stream is 6% after regeneration air stream heater 2 is heated to 400 DEG C, catalyst is again
Raw pre-add thermal current is the reflux gas of 5 gas outlet of hot recycling area.Using mechanical close between catalyst runner 4-1 and end cap
Envelope, inlet end gas partitions case 4-2 are mounted on the inlet end of catalyst runner 4-1, only cover 1 catalyst loading area 10, and
Outlet side gas partitions case 4-3 is then mounted on the outlet side of catalyst runner 4-1, can cover 2 catalyst loading areas 10 simultaneously.
Inlet end gas partitions case 4-2, outlet side gas partitions case 4-3 and catalyst runner 4-1 sealing, and use spring compression.When need
When rotating, gas partitions case sealing surface and catalyst runner 4-1 section are pulled open using external force, prevent and treat the abrasion of sealing surface.
After rotateing in place, removal external force is allowed to compress sealing again.
It is illustrated below with reference to the operation logic of the present embodiment：
Flow is 150000m3/ h, temperature are that 250 DEG C of coking flue gas enters catalyst runner 4-1's by air inlet end cap
Low-temperature SCR reaction zone, the coking flue gas that regeneration air stream conveying fan 1 extracts 6% are heated to 400 DEG C through regeneration air stream heater 2
Afterwards, the hot recycling area 5 of catalyst runner 4-1 is entered using inlet end gas partitions case 4-2, regeneration air stream passes through catalyst runner
After 4-1, catalyst regeneration pre-add hot-zone 6 is flowed back into using outlet side gas partitions case 4-3, regeneration thermal current is formed, is back to
The inlet end of catalyst runner 4-1 is mixed with main body coking flue gas, enters back into low-temperature SCR reaction zone.Realize coking simultaneously in this way
The cyclic regeneration of denitrating flue gas and catalyst.
Embodiment 2：
It is 100000m by flow using the device of embodiment 13/ h, temperature be 260 DEG C glass fire flue gas by into
Gas end cap enters the low-temperature SCR reaction zone of catalyst runner 4-1, and the glass that regeneration air stream conveying fan 1 extracts 8% fires flue gas
After regeneration air stream heater 2 is heated to 350 DEG C, enter the heat of catalyst runner 4-1 again using inlet end gas partitions case 4-2
Raw area 5 flows back into catalyst regeneration pre-add using outlet side gas partitions case 4-3 after regeneration air stream passes through catalyst runner 4-1
Hot-zone 6 forms regeneration thermal current, and the inlet end for being back to catalyst runner 4-1 is mixed with main body coking flue gas, enters back into low temperature
SCR reaction zone.
Catalyst runner 4-1 is primary every half an hour starting rotation, every time one interval of rotation.Start to rotate it every time
Before, both ends gas partitions case is exited by spring arrangement toward outside；After catalyst runner 4-1 is rotated in place and stops operating,
Both ends gas partitions case is advanced by spring arrangement again, and is connected with catalyst runner 4-1 sealing.Realize coking simultaneously in this way
The cyclic regeneration of denitrating flue gas and catalyst.
Embodiment 3：
The rotary-type low temperature SCR denitration of the present embodiment and on-line continuous regenerating unit include runner catalyst body unit 3 and
Regeneration air stream conveying fan 1, the regeneration air stream heater 2 being used cooperatively with runner catalyst body unit 3, runner catalyst body list
Member 3 includes the catalyst runner 4-1 of intermittent rotary and the inlet end gas point for being separately positioned on the both ends catalyst runner 4-1
Cell 4-2 and outlet side gas partitions case 4-3, inlet end gas partitions case 4-2, outlet side gas partitions case 4-3 will be urged jointly
Agent runner 4-1 isolates low-temperature SCR reaction zone, catalyst regeneration pre-add hot-zone 6 and hot recycling area 5 in a circumferential direction.
Catalyst runner 4-1 include both ends open and shell 7 with hollow cavity, the inner cylinder 8 that is plugged in shell 7 with
And 6 along the axial uniformly distributed radial separations plate 9 between inner cylinder 8 and shell 7 of shell 7, the sealing of 8 both ends of inner cylinder, and respectively
Separation case sealing surface is set.Cavity between shell 7 and inner cylinder 8 is separated into 6 catalyst loading areas 10 by radial separations plate 9.
The side of inlet end gas partitions case 4-2 is equipped with regenerated heat airflow inlet, and the other side covers a catalyst and loads
Area 10 forms the first hot recycling section；The side of outlet side gas partitions case 4-3 is equipped with regenerated heat air stream outlet, and the other side is same
When cover two neighboring catalyst loading area 10, one of them capped catalyst loading area 10 is formed and the first hot recycling area
Between the second hot recycling section for being connected, and hot recycling area 5 is collectively formed in the first hot recycling section and the second hot recycling section,
Another capped catalyst loading area 10 then forms catalyst regeneration pre-add hot-zone 6, and remaining uncovered catalyst
Loading area 10 collectively forms low-temperature SCR reaction zone.
The both ends catalyst runner 4-1 further respectively have and inlet end gas partitions case 4-2, outlet side gas partitions case 4-3
The air inlet end cap and outlet end cap being connected, catalyst runner 4-1 and air inlet end cap, outlet end cap use mechanical seal.
Spring is all made of between inlet end gas partitions case 4-2, outlet side gas partitions case 4-3 and catalyst runner 4-1
It compresses, when needing to rotate, separation case sealing surface and the section of catalyst runner 4-1 is pulled open using external force, prevent separation case
Sealing surface wear, after rotateing in place, removal external force, make inlet end gas partitions case 4-2, outlet side gas partitions case 4-3 with
Catalyst runner 4-1 compresses sealing again.
In the present embodiment, the diameter of inner cylinder 8 is 400mm, and the internal diameter of shell 7 is 1200mm, and catalyst runner 4-1's is effective
Length is 2000mm.Graininess SCR catalyst is filled in catalyst loading area 10.It in the operating condition, is 350- by temperature
400 DEG C of hot gas flows through inlet end gas partitions case 4-2 and enters hot recycling area 5, then is back to through outlet side gas partitions case 4-3
Catalyst regeneration pre-add hot-zone 6 forms regeneration thermal current, and the inlet end for being back to catalyst runner 4-1 is mixed with main body flue gas,
The 2-10% of flue gas flow based on the flow of regeneration thermal current.
The rotary-type low temperature SCR denitration of the present embodiment and on-line continuous regenerating unit are applied to include coking, steel sintering, oxygen
Change the low-temperature denitration processing of the industrial furnace smokes such as aluminium roasting, ceramics and glass firing.
Embodiment 4：
In the present embodiment, radial separations plate 9 is equipped with 15 altogether, and the diameter of inner cylinder 8 is 1200mm, and the internal diameter of shell 7 is
The effective length of 5000mm, catalyst runner 4-1 are 4000mm.Honeycomb-shaped SCR catalyst is filled in catalyst loading area 10.
Remaining is the same as embodiment 3.
Embodiment 5：
In the present embodiment, radial separations plate 9 is equipped with 12 altogether, and the diameter of inner cylinder 8 is 600mm, and the internal diameter of shell 7 is
The effective length of 2400mm, catalyst runner 4-1 are 2500mm.It is catalyzed in catalyst loading area 10 filled with corrugated plate shape SCR
Agent.Remaining is the same as embodiment 3.
Embodiment 6：
In the present embodiment, radial separations plate 9 is equipped with 2 altogether, and the diameter of inner cylinder 8 is 800mm, and the internal diameter of shell 7 is
The effective length of 3600mm, catalyst runner 4-1 are 3000mm.In catalyst loading area 10 filled with graininess SCR catalyst,
Honeycomb-shaped SCR catalyst and corrugated plate shape SCR catalyst.Remaining is the same as embodiment 3.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention
Within protection scope.
Claims (7)
1. rotary-type low temperature SCR denitration and on-line continuous regenerating unit, which is characterized in that the device includes runner catalyst body list
First (3) and regeneration air stream conveying fan (1), the regeneration air stream heater being used cooperatively with runner catalyst body unit (3)
(2), the runner catalyst body unit (3) includes the catalyst runner (4-1) of intermittent rotary and is separately positioned on catalysis
The inlet end gas partitions case (4-2) and outlet side gas partitions case (4-3) at the both ends agent runner (4-1), the inlet end gas
Body separation case (4-2), outlet side gas partitions case (4-3) jointly isolate catalyst runner (4-1) low in a circumferential direction
Warm SCR reaction zone, catalyst regeneration pre-add hot-zone (6) and hot recycling area (5)；
The catalyst runner (4-1) includes both ends open and has the shell (7) of hollow cavity, is plugged in shell (7)
Inner cylinder (8) and N number of along the axial uniformly distributed radial separations plate (9) between inner cylinder (8) and shell (7) of shell (7),
In, N is integer, and N >=2, the sealing of the inner cylinder (8) both ends, and separation case sealing surface is respectively set；
Cavity between shell (7) and inner cylinder (8) is separated into N number of catalyst loading area (10) by the radial separations plate (9),
N is integer, and N >=2；
The side of the inlet end gas partitions case (4-2) is equipped with regenerated heat airflow inlet, and the other side covers a catalyst
Loading area (10) forms the first hot recycling section；The side of the outlet side gas partitions case (4-3) is equipped with regeneration thermal current
Outlet, the other side cover two neighboring catalyst loading area (10) simultaneously, one of them capped catalyst loading area (10)
Form the second hot recycling section being connected with the first hot recycling section, and the first hot recycling section and the second hot recycling section
Hot recycling area (5) are collectively formed, another capped catalyst loading area (10) then forms catalyst regeneration pre-add hot-zone
(6), and remaining uncovered catalyst loading area (10) collectively forms low-temperature SCR reaction zone.
2. rotary-type low temperature SCR denitration according to claim 1 and on-line continuous regenerating unit, which is characterized in that described
Catalyst loading area (10) in be filled with graininess SCR catalyst, honeycomb-shaped SCR catalyst or corrugated plate shape SCR catalyst
One of or it is a variety of.
3. rotary-type low temperature SCR denitration according to claim 1 and on-line continuous regenerating unit, which is characterized in that described
The diameter of inner cylinder (8) be 400-1200mm, the internal diameter of the shell (7) is 1200-5000mm, the catalyst runner
The effective length of (4-1) is 2000-4000mm.
4. rotary-type low temperature SCR denitration according to any one of claims 2 to 3 and on-line continuous regenerating unit, feature
It is, described both ends catalyst runner (4-1) further respectively have and inlet end gas partitions case (4-2), outlet side gas point
The air inlet end cap and outlet end cap that cell (4-3) is connected, the catalyst runner (4-1) and air inlet end cap, outlet end cap
Using mechanical seal.
5. rotary-type low temperature SCR denitration according to claim 4 and on-line continuous regenerating unit, which is characterized in that described
Inlet end gas partitions case (4-2), between outlet side gas partitions case (4-3) and catalyst runner (4-1) be all made of spring
It compresses, when needing to rotate, separation case sealing surface and the section of catalyst runner (4-1) is pulled open using external force, prevent from separating
Case sealing surface wear, after rotateing in place, removal external force makes inlet end gas partitions case (4-2), outlet side gas partitions case
(4-3) and catalyst runner (4-1) is compressed again and is sealed.
6. rotary-type low temperature SCR denitration according to claim 4 and on-line continuous regenerating unit, which is characterized in that in work
Make under state, the hot gas that temperature is 350-400 DEG C is flowed through into inlet end gas partitions case (4-2) into hot recycling area (5), then pass through
Outlet side gas partitions case (4-3) is back to catalyst regeneration pre-add hot-zone (6), forms regeneration thermal current, is back to catalyst
The inlet end of runner (4-1) is mixed with main body flue gas, the 2-10% of flue gas flow based on the flow of the regeneration thermal current.
7. the application of rotary-type low temperature SCR denitration as described in claim 1 and on-line continuous regenerating unit, which is characterized in that
For including the low-temperature denitration processing of the industrial furnace smokes such as coking, steel sintering, aluminium oxide calcining, ceramics and glass firing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610784003.8A CN106345291B (en) | 2016-08-31 | 2016-08-31 | Rotary-type low temperature SCR denitration and on-line continuous regenerating unit and its application |
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| CN201610784003.8A CN106345291B (en) | 2016-08-31 | 2016-08-31 | Rotary-type low temperature SCR denitration and on-line continuous regenerating unit and its application |
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| CN106345291B true CN106345291B (en) | 2018-11-16 |
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| CN109939562A (en) * | 2019-04-11 | 2019-06-28 | 龙净科杰环保技术（上海）有限公司 | Rotary SCR reactor |
| CN112169585A (en) * | 2020-10-10 | 2021-01-05 | 江苏龙净科杰环保技术有限公司 | Anti-tar poisoning flue gas denitration reactor and method for simply regenerating tar poisoning catalyst |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201969496U (en) * | 2010-12-22 | 2011-09-14 | 浙江天蓝环保技术有限公司 | Device capable of realizing denitration reaction and regeneration of silicon controlled rectifier (SCR) catalyst |
| CN103127963A (en) * | 2011-11-30 | 2013-06-05 | 徐树元 | On-line regeneration system and method of flue gas denitration catalyst |
| CN103994462A (en) * | 2014-06-05 | 2014-08-20 | 山东大学 | Air preheating and denitration integrated reactor and reaction method |
| CN104791820A (en) * | 2015-04-28 | 2015-07-22 | 浙江大学 | Coal-fired flue gas pollutant ultralow emission system with rotary type GGH |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55116426A (en) * | 1979-03-01 | 1980-09-08 | Hitachi Zosen Corp | Low temperature denitration of exhaust smoke |
| JPS5721920A (en) * | 1980-07-17 | 1982-02-04 | Mitsubishi Heavy Ind Ltd | Denitrating apparatus for waste gas |
-
2016
- 2016-08-31 CN CN201610784003.8A patent/CN106345291B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201969496U (en) * | 2010-12-22 | 2011-09-14 | 浙江天蓝环保技术有限公司 | Device capable of realizing denitration reaction and regeneration of silicon controlled rectifier (SCR) catalyst |
| CN103127963A (en) * | 2011-11-30 | 2013-06-05 | 徐树元 | On-line regeneration system and method of flue gas denitration catalyst |
| CN103994462A (en) * | 2014-06-05 | 2014-08-20 | 山东大学 | Air preheating and denitration integrated reactor and reaction method |
| CN104791820A (en) * | 2015-04-28 | 2015-07-22 | 浙江大学 | Coal-fired flue gas pollutant ultralow emission system with rotary type GGH |
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