CN106345291A - Rotating wheel type low-temperature SCR denitration and on-line continuous regeneration device and application thereof - Google Patents
Rotating wheel type low-temperature SCR denitration and on-line continuous regeneration device and application thereof Download PDFInfo
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- CN106345291A CN106345291A CN201610784003.8A CN201610784003A CN106345291A CN 106345291 A CN106345291 A CN 106345291A CN 201610784003 A CN201610784003 A CN 201610784003A CN 106345291 A CN106345291 A CN 106345291A
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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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- 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
- B01D53/8628—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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- 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
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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
- B01D53/96—Regeneration, reactivation or recycling of reactants
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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 invention relates to a rotating wheel type low-temperature SCR denitration and on-line continuous regeneration device and application thereof. The rotating wheel type low-temperature SCR denitration and on-line continuous regeneration device comprises a rotating wheel catalysis main body unit, a regenerated gas flow conveying fan and a regenerated gas flow heater, wherein the rotating wheel catalysis main body unit comprises a catalyst rotating wheel which is rotated at internals, and a gas inlet end gas partitioning tank and a gas outlet end gas partitioning tank which are respectively arranged at two ends of the catalyst rotating wheel; the gas inlet end gas partitioning tank and the gas outlet end gas partitioning tank isolate the catalyst rotating wheel from a low-temperature SCR reaction area, a catalyst regeneration preheating area and a heat regeneration area in the circumferential direction. The rotating wheel type low-temperature SCR denitration and on-line continuous regeneration device is applied to low-temperature denitration treatment on industrial kiln gases generated in coking, steel sintering, alumina roasting, ceramic and glass sintering and the like. Compared with the prior art, the rotating wheel type low-temperature SCR denitration and on-line continuous regeneration device adopts the uniquely designed rotating wheel device, is capable of synchronously completing low-temperature SCR denitration treatment on fume and on-line continuous production of a catalyst, and is low in energy consumption, long in service life of the catalyst and very good in 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
Put and its apply.
Background technology
Nitrogen oxides are one of main atmosphere pollutions, can cause the weldings such as acid rain, haze, impact human health
Series of problems.Therefore, the improvement of nitrogen oxides is the emphasis of current air contaminant treatment.Wherein, coking, steel sintering,
The nitrogen oxides that aluminium oxide calcining, pottery and glass such as fire at the industrial furnace smoke discharge have caused increasing concern.Often
The catalyst used by catalytic reduction method denitration (scr) of rule could permanently effective operation only more than 300 DEG C.And for above-mentioned several
Individual industry, because flue-gas temperature is generally below 250 DEG C, and containing certain catalyst harmful toxic matter, conventional catalyst is difficult to
Adapt to this low temperature condition.Therefore, exploitation low temperature scr catalyst is the focus of current research.
However, for most of low temperature catalysts, because its own easily adsorbs more harmful constituent or there is quilt
The reasons such as ammonium salt covering, and cause catalyst poisoning or inefficacy.Therefore, design the suitable reaction of low temperature scr technology and
Line regenerating unit, be promote this technology including coking, the industry kiln such as steel sintering, aluminium oxide calcining, pottery and glass are fired
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 waste gas
So of the middle overwhelming majority2, denitrating catalyst structure sheaf is used in combination with except ammonia catalyst structure layer, efficient removal coke oven simultaneously
No in flue gasx, denitrating catalyst adopts filter tubular structure, except ammonia catalyst adopts v font structure；This technique is by air inducing list
The system realization that unit, desulfurization unit, ammonia preparation unit, denitration form except ammonia unit, compressed air unit, particulate matter supply unit
NO_x Reduction by Effective, desulfurization.
Content of the invention
The purpose of the present invention is exactly to overcome the defect of above-mentioned prior art presence to provide one kind can effectively improve and 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, this device includes runner catalyst body unit, Yi Jiyu
Regeneration air stream conveying fan that runner catalyst body unit matching uses, regeneration air stream heater, described runner catalyst body
Unit include intermittent rotary catalyst runner and be separately positioned on catalyst runner two ends inlet end gas partitions case and
Outlet side gas partitions case, catalyst runner is being justified by described inlet end gas partitions case, outlet side gas partitions case jointly
Low temperature scr reaction zone, catalyst regeneration pre-add hot-zone and hot recycling area are isolated on circumferential direction.
Described catalyst runner include both ends open and have hollow cavity shell, be plugged in shell inner core with
And the n radial separations plate being axially uniformly laid in along shell between inner core and shell, wherein, n is integer, and n >=2, described
The sealing of inner core two ends, and be respectively provided with separation case sealing surface.
As preferred technical scheme, n is integer, and 6≤n≤15.
Cavity between shell and inner core is separated into n catalyst loading area by described radial separations plate, and n is integer,
And n >=2.
It is filled with graininess scr catalyst, cellular scr catalyst or corrugated plate shape in described catalyst loading area
One or more of scr catalyst.
The side of described inlet end gas partitions case is provided with regenerated heat airflow inlet, and opposite side covers a catalyst dress
Carry area, form the first hot recycling interval；The side of described outlet side gas partitions case is provided with regenerated heat air stream outlet, opposite side
Cover two neighboring catalyst loading area, one of capped catalyst loading area forms interval with the first hot recycling simultaneously
The second hot recycling being connected is interval, and the first hot recycling is interval and the second hot recycling interval is collectively forming hot recycling area, 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.
A diameter of 400-1200mm of described inner core, the internal diameter of described shell is 1200-5000mm, described catalysis
The effective length of agent runner is 2000-4000mm.
Described catalyst runner two ends are further respectively had and are connected with inlet end gas partitions case, outlet side gas partitions case
The air inlet end cap connecing and end cap of giving vent to anger, described catalyst runner adopts mechanical seal with air inlet end cap, end cap of giving vent to anger.
All using spring pressure between described inlet end gas partitions case, outlet side gas partitions case and catalyst runner
Tightly, when needing to rotate, using external force, the section of separation case sealing surface and catalyst runner is pulled open, prevent separation case sealing surface
Abrasion, after rotateing in place, removal external force, make inlet end gas partitions case, outlet side gas partitions case and catalyst runner weight
New compression sealing.
Under in working order, the steam for 350-400 DEG C for the temperature is flowed through 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, form regeneration thermal current, be back to catalyst runner
Inlet end is mixed with main body flue gas, and the flow of described regeneration thermal current is the 2-10% of main body flue gas flow.
Described thermal current mainly uses electrical heating or fuel heating, and temperature rises to the gas after 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
Burn, pottery and glass the low-temperature denitration of industrial furnace smoke such as are fired and processed.
In the present invention, the described inner core of catalyst runner, shell and radial separations plate are all using heating resisting metal material system
For forming, catalyst runner is driven or roller bearing friction-driven using manually periodically rotation, motor gear, and each rotation can be cut just
Change a zoning unit (i.e. catalyst loading area), switching time is spaced apart 1-10 hour, Main Basiss catalyst self performance
And depending on flue-gas temperature condition.
Apparatus of the present invention can be using vertical or horizontal mounting means.The inlet end of described catalyst runner is provided with injection
Device, the reducing agent used by denitration is ejected by this ejector, is uniformly mixed in flue gas.Described reducing agent is ammonia.This
Invent adopted scr catalyst between 150-250 DEG C, there is higher catalyst denitration activity.
If it should be noted that keeping catalyst runner itself static, and making end cap and the air-flow separation case of runner both sides
The switching mode rotating, its principle is still identical with the present invention, belongs to protection scope 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
Process and catalyst on-line continuous regeneration, it is to avoid catalyst is because adsorbing more harmful constituent or the reason such as being covered by ammonium salt
And cause lead to poisoning or failure phenomenon, substantially increase the service life of catalyst；Regeneration air stream is only shallow bid heat simultaneously
Air or main body flue gas are heated to the gas after 350-400 DEG C through regeneration air stream heater, and regeneration pre-add thermal current is by heat
Renewing zone effluent air, through reflux cycle, makes regeneration air stream take full advantage of the heat of original flue gas, regenerates pre-add steam
Stream takes full advantage of the waste heat of regeneration air stream, save considerably energy consumption；Neatly can be adjusted according to the feature of different flue gases simultaneously
The conversion frequency of the zones of different of runner.
Brief description
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 representation of catalyst runner inlet end；
Fig. 4 is the structural representation 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 core, 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
Unit 3, regeneration air stream conveying fan 1 and regeneration air stream heater 2.Runner catalyst body unit 3 includes the catalyst of intermittent rotary
Runner 4-1 and the inlet end gas partitions case 4-2 and the outlet side gas partitions that are separately positioned on catalyst runner 4-1 two ends
Case 4-3, inlet end gas partitions case 4-2, outlet side gas partitions case 4-3 are 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 core 8, shell 7, radial separations plate 9, catalyst loading area 10 and accordingly close
The part composition such as envelope section.Cavity between shell 7 and inner core 8 is separated into multiple catalyst loading areas 10 by radial separations plate 9,
Corresponding low temperature scr catalyst is all embedded in each catalyst loading area 10.
Catalyst runner 4-1 is respectively arranged at two ends with air inlet end cap and end cap of giving vent to anger, and is respectively provided with inlet end gas partitions
Case 4-2, outlet side gas partitions case 4-3, so that main body flue gas and regeneration air stream are kept apart, thus by catalyst runner 4-1
Isolate low temperature scr reaction zone, catalyst regeneration pre-add hot-zone 6 and hot recycling area 5 in a circumferential direction.Catalyst regenerates pre-add
The region area in hot-zone 6 and hot recycling area 5 zoning unit (i.e. catalyst loading area 10) with catalyst runner 4-1 respectively
Region area identical, the region area of low temperature scr reaction zone is identical with the region area of remaining zoning unit.
Regeneration air stream is that 6% coking flue gas is heated to the gas after 400 DEG C through regeneration air stream heater 2, and catalyst is again
Raw pre-add thermal current is the reflux gas of hot recycling area 5 gas outlet.Close using machinery between catalyst runner 4-1 and end cap
Envelope, inlet end gas partitions case 4-2 is arranged on the inlet end of catalyst runner 4-1, only covers 1 catalyst loading area 10, and
Outlet side gas partitions case 4-3 is then arranged 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 to be rotated, using external force, gas partitions case sealing surface is pulled open with catalyst runner 4-1 section, the abrasion of preventing and treating sealing surface.
After rotateing in place, removal external force, it is allowed to again compress sealing.
Operation logic with reference to the present embodiment illustrates:
Flow is 150000m3/ h, temperature is that 250 DEG C of coking flue gas enters catalyst runner 4-1 by air inlet end cap
Low temperature scr reaction zone, the coking flue gas that regeneration air stream conveying fan 1 extracts 6% is heated to 400 DEG C through regeneration air stream heater 2
Afterwards, enter the hot recycling area 5 of catalyst runner 4-1 using inlet end gas partitions case 4-2, regeneration air stream passes through catalyst runner
After 4-1, it is back to catalyst regeneration pre-add hot-zone 6 using outlet side gas partitions case 4-3, forms regeneration thermal current, be 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.So realize coking simultaneously
Denitrating flue gas and the cyclic regeneration of catalyst.
Embodiment 2:
Using the device of embodiment 1, flow is 100000m3/ h, temperature be 260 DEG C of glass fire flue gas pass through into
Gas end cap enters the low temperature scr reaction zone of catalyst runner 4-1, and flue gas fired by the glass that regeneration air stream conveying fan 1 extracts 8%
Be heated to through regeneration air stream heater 2 after 350 DEG C, using inlet end gas partitions case 4-2 enter catalyst runner 4-1 heat again
Raw area 5, regeneration air stream, after catalyst runner 4-1, is back to catalyst regeneration pre-add using outlet side gas partitions case 4-3
Hot-zone 6, forms regeneration thermal current, the inlet end 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 starts rotation once every half an hour, every time one interval of rotation.Start every time to rotate it
Before, two ends gas partitions case is exited toward outside by spring assembly；After catalyst runner 4-1 is rotated in place and stops operating,
Two ends gas partitions case is advanced by spring assembly again, and is connected with catalyst runner 4-1 sealing.So realize coking simultaneously
Denitrating flue gas and the cyclic regeneration of catalyst.
Embodiment 3:
The present embodiment rotary-type low temperature scr denitration and on-line continuous regenerating unit include runner catalyst body unit 3 and
The regeneration air stream conveying fan 1 that uses cooperatively with runner catalyst body unit 3, regeneration air stream heater 2, runner catalyst body list
Unit 3 includes the catalyst runner 4-1 of intermittent rotary and is separately positioned on the inlet end gas at catalyst runner 4-1 two ends and divides
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 urge 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 have the shell 7 of hollow cavity, the inner core 8 that is plugged in shell 7 with
And 6 radial separations plates 9 being axially uniformly laid in along shell 7 between inner core 8 and shell 7, inner core 8 two ends seal, and difference
Setting separation case sealing surface.Cavity between shell 7 and inner core 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 provided with regenerated heat airflow inlet, and opposite side covers a catalyst and loads
Area 10, forms the first hot recycling interval；The side of outlet side gas partitions case 4-3 is provided with regenerated heat air stream outlet, and opposite side is same
When cover two neighboring catalyst loading area 10, one of capped catalyst loading area 10 is formed and the first hot recycling area
Between the second hot recycling of being connected interval, and the first hot recycling is interval is collectively forming hot recycling area 5 with the second hot recycling interval,
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.
Catalyst runner 4-1 two ends further respectively have and inlet end gas partitions case 4-2, outlet side gas partitions case 4-3
The air inlet end cap being connected and end cap of giving vent to anger, catalyst runner 4-1 and air inlet end cap, end cap of giving vent to anger adopt mechanical seal.
All using spring between inlet end gas partitions case 4-2, outlet side gas partitions case 4-3 and catalyst runner 4-1
The section of separation case sealing surface and catalyst runner 4-1, when needing to rotate, is pulled open using external force, prevents separation case by compression
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, a diameter of 400mm of inner core 8, the internal diameter of shell 7 is 1200mm, and catalyst runner 4-1's is effective
Length is 2000mm.It is filled with graininess scr catalyst in catalyst loading area 10.Under in working order, temperature is 350-
400 DEG C of steam 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 regenerates pre-add hot-zone 6, forms regeneration thermal current, and the inlet end being back to catalyst runner 4-1 is mixed with main body flue gas,
The flow of regeneration thermal current is the 2-10% of main body flue gas flow.
The present embodiment rotary-type low temperature scr denitration and on-line continuous regenerating unit are applied to including coking, steel sintering, oxygen
Change aluminum roasting, pottery and glass and the low-temperature denitration of industrial furnace smoke such as fire and process.
Embodiment 4:
In the present embodiment, radial separations plate 9 is provided with 15 altogether, a diameter of 1200mm of inner core 8, and the internal diameter of shell 7 is
The effective length of 5000mm, catalyst runner 4-1 is 4000mm.It is filled with cellular scr catalyst in catalyst loading area 10.
Remaining is with embodiment 3.
Embodiment 5:
In the present embodiment, radial separations plate 9 is provided with 12 altogether, a diameter of 600mm of inner core 8, and the internal diameter of shell 7 is
The effective length of 2400mm, catalyst runner 4-1 is 2500mm.It is filled with the catalysis of corrugated plate shape scr in catalyst loading area 10
Agent.Remaining is with embodiment 3.
Embodiment 6:
In the present embodiment, radial separations plate 9 is provided with 2 altogether, a diameter of 800mm of inner core 8, and the internal diameter of shell 7 is
The effective length of 3600mm, catalyst runner 4-1 is 3000mm.Be filled with catalyst loading area 10 graininess scr catalyst,
Cellular scr catalyst and corrugated plate shape scr catalyst.Remaining is with embodiment 3.
The above-mentioned description to embodiment is to be understood that and use invention for ease of those skilled in the art.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
, according to the announcement of the present invention, the improvement made without departing from scope and modification all should be the present invention's for field technique personnel
Within protection domain.
Claims (10)
1. rotary-type low temperature scr denitration and on-line continuous regenerating unit are it is characterised in that this device includes runner catalyst body list
First (3) and the regeneration air stream conveying fan (1) using cooperatively with runner catalyst body unit (3), regeneration air stream heater
(2), described runner catalyst body unit (3) includes the catalyst runner (4-1) of intermittent rotary and is separately positioned on catalysis
Inlet end gas partitions case (4-2) at agent runner (4-1) two ends and outlet side gas partitions case (4-3), described inlet end gas
Catalyst runner (4-1) is isolated low by body separation case (4-2), outlet side gas partitions case (4-3) jointly in a circumferential direction
Warm scr reaction zone, catalyst regeneration pre-add hot-zone (6) and hot recycling area (5).
2. rotary-type low temperature scr denitration according to claim 1 and on-line continuous regenerating unit are it is characterised in that described
Catalyst runner (4-1) include both ends open and there is the shell (7) of hollow cavity, the inner core (8) being plugged in shell (7)
And the n radial separations plate (9) being axially uniformly laid in along shell (7) between inner core (8) and shell (7), wherein, n is whole
Number, and n >=2, described inner core (8) two ends seal, and are respectively provided with separation case sealing surface.
3. rotary-type low temperature scr denitration according to claim 2 and on-line continuous regenerating unit are it is characterised in that described
Radial separations plate (9) cavity between shell (7) and inner core (8) is separated into n catalyst loading area (10), n be integer,
And n >=2.
4. rotary-type low temperature scr denitration according to claim 3 and on-line continuous regenerating unit are it is characterised in that described
Catalyst loading area (10) in be filled with graininess scr catalyst, cellular scr catalyst or corrugated plate shape scr catalyst
One or more of.
5. rotary-type low temperature scr denitration according to claim 3 and on-line continuous regenerating unit are it is characterised in that described
The side of inlet end gas partitions case (4-2) be provided with regenerated heat airflow inlet, opposite side covers a catalyst loading area
(10), form the first hot recycling interval；The side of described outlet side gas partitions case (4-3) is provided with regenerated heat air stream outlet,
Opposite side covers two neighboring catalyst loading area (10) simultaneously, one of capped catalyst loading area (10) formed with
The second hot recycling that first hot recycling interval is connected is interval, and the interval common shape interval with the second hot recycling of the first hot recycling
Become hot recycling area (5), another capped catalyst loading area (10) then forms catalyst regeneration pre-add hot-zone (6), and its
Remaining uncovered catalyst loading area (10) collectively forms low temperature scr reaction zone.
6. rotary-type low temperature scr denitration according to claim 2 and on-line continuous regenerating unit are it is characterised in that described
Inner core (8) a diameter of 400-1200mm, the internal diameter of described shell (7) is 1200-5000mm, described catalyst runner
(4-1) effective length is 2000-4000mm.
7. the rotary-type low temperature scr denitration according to any one of claim 2 to 6 and on-line continuous regenerating unit, its feature
It is, described catalyst runner (4-1) two ends further respectively have to be divided with inlet end gas partitions case (4-2), outlet side gas
Air inlet end cap and end cap of giving vent to anger that cell (4-3) is connected, described catalyst runner (4-1) and air inlet end cap, end cap of giving vent to anger
Using mechanical seal.
8. rotary-type low temperature scr denitration according to claim 7 and on-line continuous regenerating unit are it is characterised in that described
Inlet end gas partitions case (4-2), between outlet side gas partitions case (4-3) and catalyst runner (4-1) all using spring
The section of separation case sealing surface and catalyst runner (4-1), when needing to rotate, is pulled open by compression using external force, prevents from separating
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) again compress sealing with catalyst runner (4-1).
9. rotary-type low temperature scr denitration according to claim 7 and on-line continuous regenerating unit are it is characterised in that in work
Make under state, the steam for 350-400 DEG C for the temperature is flowed through inlet end gas partitions case (4-2) and enters hot recycling area (5), then warp
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, and the flow of described regeneration thermal current is the 2-10% of main body flue gas flow.
10. as claimed in claim 1 rotary-type low temperature scr denitration and on-line continuous regenerating unit application it is characterised in that
The low-temperature denitration firing etc. industrial furnace smoke for including coking, steel sintering, aluminium oxide calcining, pottery and glass is processed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| 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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| CN106345291B CN106345291B (en) | 2018-11-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 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 |
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|---|---|
| CN106345291B (en) | 2018-11-16 |
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