CN108722177A - A kind of low-temperature circulating regeneration denitration catalyst technique - Google Patents
A kind of low-temperature circulating regeneration denitration catalyst technique Download PDFInfo
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- CN108722177A CN108722177A CN201810602130.0A CN201810602130A CN108722177A CN 108722177 A CN108722177 A CN 108722177A CN 201810602130 A CN201810602130 A CN 201810602130A CN 108722177 A CN108722177 A CN 108722177A
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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
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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Abstract
The invention belongs to Industrial Boiler waste flue gas denitration technical fields, more particularly to a kind of low-temperature circulating regenerates denitration catalyst technique, the low-temperature circulating regeneration denitration catalyst device which uses includes reaction chamber, collecting tank, conduit, circulating pump, catalyst reaction device, rotating device, grinding device and transmission device；Air inlet one, exhaust outlet, the first ash hole and air inlet two are provided on reaction chamber；Air inlet one is located on the left side outer wall of reaction chamber；Exhaust outlet is located in reaction chamber outer right wall；First ash port is located at reaction chamber bottom；Air inlet two is located at the top of air inlet one；Collecting tank is located on the left of reaction chamber；Conduit is located on the left of collecting tank；Circulating pump is located in conduit；Catalyst reaction device is located in reaction chamber；Rotating device is located in reaction chamber, and rotating device is located at below catalyst reaction device；Grinding device is located in reaction chamber, and grinding device is located at below rotating device；Transmission device is located in reaction chamber, and transmission device is located at below regulating wheel.
Description
Technical field
The invention belongs to Industrial Boiler waste flue gas denitration technical fields more particularly to a kind of low-temperature circulating to regenerate denitration catalyst
Technique.
Background technology
With the development of industry, the removal of the pollutant of industrial waste gas is more and more important.Vulcanization in industrial waste gas
Object causes prodigious harm with itrated compound to atmospheric environment, is had been very urgent to industrial waste gas desulphurization and denitration.Various countries' industry
The prevailing technology of waste flue gas of boilers desulphurization and denitration is to utilize selective reduction (SCR) technology by the removal of nitrogen oxide in flue gas
Method.Selective reduction method is to utilize catalysis under conditions of 320~400 DEG C to the restoring function of NOx using ammonia (NH3)
NOx is reduced to do not have the N2 of pollution effect and water to air by agent effect, and " selectivity " is meant that ammonia only selects NOx to carry out
Reduction reaction.The technique is succeeded in developing in Japan first in late 1970s, after the eighties and the nineties, Europe and U.S.
State puts into commercial Application in succession, worldwide becomes the prevailing technology of large scale industry denitration of boiler smoke.
SCR system is made of ammonia supply system, ammonia/air-injection system, catalytic reaction system and control system etc.,
Catalytic reaction system is the core of SCR techniques, and the blow device of nozzle and flyash equipped with NH3, flue gas enters along flue
The SCR reactors of catalyst are loaded with, NOx is reduced into N2 with NH3 on the surface of catalyst.Although SCR technology is instantly de-
The mainstream technology of nitre, but the technology needs to be transformed boiler, needs hot environment, and high temperature denitrating catalyst poisoning report
Dangerous waste processing must also be carried out after useless.
In consideration of it, a kind of low-temperature circulating of the present invention regenerates denitration catalyst technique, can carry out at low temperatures
Denitration so that reaction is convenient and efficient；And this technique need not be transformed boiler, reduce cost；Of the invention simultaneously
Catalyst can recycle, and save cost, reduce the pollution to environment.
Invention content
In order to make up for the deficiencies of the prior art, a kind of low-temperature circulating proposed by the present invention regenerates denitration catalyst technique, the work
Skill can carry out exhaust gas denitration processing in the case of low temperature, need not be transformed to boiler, reduce exhaust gas denitration at
This；Low-temperature circulating regeneration denitration catalyst device used in the technique can remove the conversion zone of catalyst surface so that catalysis
Agent recycles, and has saved cost, reduces the harm to environment.
The technical solution adopted by the present invention to solve the technical problems is：A kind of low-temperature circulating regeneration of the present invention is de-
Nitre Catalytic processes, the technique include the following steps：
Step 1：The preparation and storage of ammonia；
Step 2：After getting out ammonia in step 1, ammonia is evaporated and the ammonia of evaporation is mixed with premix air；
Step 3：After ammonia is mixed with air in step 2, mixed gas injection low-temperature circulating is regenerated into denitration catalyst
Device；
Step 4：After being passed through mixed gas in step 3, pending exhaust gas is passed through low-temperature circulating and regenerates denitration catalyst
Device；
Step 5：After being passed through exhaust gas in step 4, waits for exhaust gas denitration reaction to terminate, gas up to standard after processing is arranged
Go out；Wherein, described in step 3 low-temperature circulating regeneration denitration catalyst device include reaction chamber, collecting tank, conduit, circulating pump,
Catalyst reaction device, rotating device, grinding device and transmission device；Air inlet one, exhaust outlet, are provided on the reaction chamber
One ash hole and air inlet two；The air inlet one is located at the left side of reaction chamber, and air inlet one is waited for for being passed through into reaction chamber
The exhaust gas of processing；The exhaust outlet is located on the right side of reaction chamber, and exhaust outlet is used to handle gas discharge up to standard；Described first falls
Grey mouth is located at reaction chamber bottom, and the first ash hole is used to the dust in reaction chamber reaction chamber is discharged；The air inlet two is located at
One top of air inlet, air inlet two is for being passed through ammonia into reaction chamber；The collecting tank is located on the left of reaction chamber, collecting tank with
Reaction chamber is connected, and collecting tank is for collecting regenerated catalyst；The conduit is located on the left of collecting tank, conduit respectively with reaction chamber
It is connected with collecting tank, conduit is for the regenerated catalyst in collecting tank to be transported in reaction chamber；The circulating pump, which is located at, leads
In pipe；The catalyst reaction device is located in reaction chamber, and catalyst reaction device is located at two top of air inlet, and catalyst reaction device is
Reticular structure, catalyst reaction device are used to provide reaction environment for reactant；The rotating device is located at right side in reaction chamber, rotation
Rotary device is located at below catalyst reaction device, and rotating device is used to pending exhaust gas being delivered to catalyst reaction device；It is described
Grinding device is located in reaction chamber, and grinding device is located at below rotating device, and grinding device is used for reacted catalyst table
The conversion zone in face removes, and obtains regenerated catalyst；The transmission device is located in reaction chamber, and transmission device is located under regulating wheel
Side, transmission device level run through reaction chamber, are in contact with collecting tank on the left of transmission device, and transmission device is used for regenerated catalyst
It is delivered in collecting tank.
Preferably, the rotating device includes turntable, strut, shift plate, motor one, positioning disk, clump weight, strainer and blocking
Plate；The turntable is cylinder, and turntable is internally provided with circular cavity, and turntable is provided with toroidal cavity in external peripheral surface, recessed
Slot is equipped with the hole of several connection circular cavities；Locating rod and positioning disk are additionally provided in the circular cavity, positioning disk passes through
Locating rod is mounted in circular cavity, and positioning disk is that a left side is the irregular cavity that semicircle right side is half elliptic,
It is circumferentially provided with slideway on positioning disk outer wall, positions clump weight built in pan bottom, the weight of clump weight is much larger than the weight of positioning disk
Amount；The shift plate quantity is identical as the quantity in the hole on circular cavity, and shift plate is circumferentially hinged in groove；The strainer is mounted on
The side of shift plate offers through-hole in shift plate, and strainer is for being filtered the granule foreign in exhaust gas；The barrier plate installation
On strainer, barrier plate is for making granule foreign stay in strainer；The strut quantity is corresponding with the quantity of shift plate, strut one
Hole on circular cavity is held to be connected with strainer, for the strut other end on the slideway of positioning disk outer wall, strut can be around
Slideway circumferentially slides, and strut is used for band electric filter and moves, and realizes the vibration of strainer；The motor one is fixed on reaction chamber, electricity
Machine one is for driving turntable to rotate.When work, motor one drives turntable rotation, and positioning disk is since the presence of clump weight is in circle
It being remained stationary as in shape cavity, for shift plate with strut as turntable rotates synchronously, strainer pushes exhaust gas to move upwards in rotation process,
Exhaust gas is discharged after filter screen from the through-hole of shift plate, to stay in the granule foreign in exhaust gas on strainer；During this,
Slideway sliding of the one end of strut while rotation on positioning disk on positioning disk, since strut lengths are constant, and
Positioning disk it is in irregular shape, strut enter right side half elliptic region when, so that strainer is shaken, between strainer and barrier plate
Granule foreign shaken off down, fall under gravity into the first ash hole, realize the collection of granule foreign, while turntable
Pending exhaust gas is routed up into catalyst reaction device by rotation.
Preferably, filter screen and the second ash hole are additionally provided on the collecting tank；The filter screen is located in collecting tank, mistake
Strainer is located at below conduit, is provided with through-hole on filter screen, the through-hole on filter screen can only cannot pass through regeneration by dust
Catalyst；Second ash hole, which is located at, collects pot bottom, the dust that the second ash hole is used to be discharged in collecting tank.When work,
Into the dust in collecting tank by filter screen filtration, filtered dust is discharged by the second ash hole.
Preferably, the grinding device includes grinding wheel, regulating wheel, belt and motor two；The grinding wheel quantity is several, grinding wheel
In reaction chamber, grinding wheel is for grinding poisoned catalyst；The regulating wheel quantity is several, and regulating wheel and grinding wheel are horizontally staggered point
Cloth, regulating wheel are fixed in reaction chamber, and regulating wheel is used to adjust the gap between grinding wheel and regulating wheel；If the belt quantity
Dry, belt is located at outside reaction chamber, and belt is for connecting grinding wheel；The motor two is fixed on reaction chamber, the output shaft of motor two
It is connected with grinding wheel, motor two is for driving grinding wheel to rotate.When work, motor two drives grinding wheel to be rotated together with belt, grinding wheel
The poisoned catalyst fallen between regulating wheel and grinding wheel is ground, the conversion zone on removal poisoned catalyst surface, regulating wheel
The distance between grinding wheel and regulating wheel are adjusted, the seam being regenerated catalyst through between regulating wheel and grinding wheel obtained after the completion is ground
Gap is fallen on transmission device.
Preferably, the transmission device includes conveyer belt, belt wheel and motor three；The conveyer belt is located in reaction chamber, passes
It send band for conveying regenerated catalyst, through-hole is further opened on conveyer belt, number of openings is several, and through-hole section upper end is under rectangle
End is trapezoidal, and through-hole is used for the discharge of dust；One piece of square plate is also hinged on the reaction chamber, square plate is located on conveyer belt
Side, square plate lower end are in contact with conveyer belt, and square plate is for separating reaction chamber and collecting tank, while square plate is convenient for regeneration catalyzing
Agent enters collecting tank；The belt wheel quantity is two, and belt wheel is located in reaction chamber, and rectangular recess, rectangular recess are additionally provided on belt wheel
Quantity is several, and rectangular recess is circumferentially distributed on belt wheel；Drive block is additionally provided on the rectangular recess, drive block passes through spring
It is connected with rectangular recess, the quantity of drive block and distribution are identical as rectangular recess, and drive block is used for the remnants' in through-hole
Dust is discharged；The motor three is fixed on reaction chamber, and motor three is rotated for driving pulley.When work, motor three rotates, and falls
Enter collecting tank by the square plate between reaction chamber and collecting tank under the action of the regenerated catalyst on transmission device is in belt,
The dust fallen on transmission device falls into reaction chamber bottom by the through-hole on belt and is discharged by the first ash hole；Belt wheel rotates
When, drive block enters in through-hole, and through-hole is discharged under the action of drive block in the dust remained in through-hole.
Beneficial effects of the present invention are as follows：
1. a kind of low-temperature circulating of the present invention regenerates denitration catalyst technique, the low-temperature circulating regeneration which uses is de-
Nitre catalytic unit can carry out denitration process under low-temperature condition to exhaust gas, need not be transformed, reduce to original boiler
Cost.
2. a kind of low-temperature circulating of the present invention regenerates denitration catalyst technique, following in the denitrification apparatus which uses
Loop device can preferably remove the nitre in exhaust gas with catalyst reaction device；It improves work efficiency, reduces cost, it is final to arrange
Nitre content in the gas up to standard gone out is less, protects environment.
3. a kind of low-temperature circulating of the present invention regenerates denitration catalyst technique, grinding in the denitrification apparatus which uses
Mill apparatus can remove the conversion zone on poisoned catalyst surface so that catalyst can recycle, and avoid traditional handicraft
In denitrating catalyst dangerous waste processing links, accelerate rhythm of production, saved cost, while reducing the dirt to environment
Dye.
Description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the flow chart of the present invention；
Fig. 2 is the front view of the present invention；
Fig. 3 is the structural schematic diagram of the rotating device in Fig. 1；
Fig. 4 is that the strut of the present invention is mounted on the structural schematic diagram in sliding block；
Fig. 5 is the structural schematic diagram of the transmission device of the present invention；
Fig. 6 is the structural schematic diagram of medium plain emery wheel and belt of the present invention；
In figure：Reaction chamber 1, collecting tank 2, conduit 3, circulating pump 4, catalyst reaction device 5, rotating device 6, grinding device 7,
Transmission device 8, air inlet 1, exhaust outlet 12, the first ash hole 13, square plate 14, air inlet 2 15, filter screen 21, second go out
Grey mouth 22, turntable 61, strut 62, shift plate 63, positioning disk 64, clump weight 65, slideway 66, strainer 67, barrier plate 68, grinding wheel 71,
Regulating wheel 72, belt 73, conveyer belt 81, belt wheel 82, drive block 83.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific implementation mode is closed, the present invention is further explained.
As shown in Figures 1 to 6, a kind of low-temperature circulating of the present invention regenerates denitration catalyst technique, which includes such as
Lower step：
Step 1：The preparation and storage of ammonia；
Step 2：After getting out ammonia in step 1, ammonia is evaporated and the ammonia of evaporation is mixed with premix air；
Step 3：After ammonia is mixed with air in step 2, mixed gas injection low-temperature circulating is regenerated into denitration catalyst
Device；
Step 4：After being passed through mixed gas in step 3, pending exhaust gas is passed through low-temperature circulating and regenerates denitration catalyst
Device；
Step 5：After being passed through exhaust gas in step 4, waits for exhaust gas denitration reaction to terminate, gas up to standard after processing is arranged
Go out；Wherein, the low-temperature circulating regeneration denitration catalyst device described in step 3 includes reaction chamber 1, collecting tank 2, conduit 3, cycle
Pump 4, catalyst reaction device 5, rotating device 6, grinding device 7 and transmission device 8；Air inlet one is provided on the reaction chamber 1
11, exhaust outlet 12, the first ash hole 13 and air inlet 2 15；The air inlet 1 is located on the left side outer wall of reaction chamber 1, into
Gas port 1 is for being passed through pending exhaust gas；The exhaust outlet 12 is located in 1 outer right wall of reaction chamber, and exhaust outlet 12 is used for will
Handle gas discharge up to standard；First ash port is located at 1 bottom of reaction chamber, and the first ash hole 13 is used for will be in reaction chamber 1
Dust be discharged reaction chamber 1；The air inlet 2 15 is located at one 11 top of air inlet, and air inlet 2 15 is used to lead into reaction chamber
Enter ammonia；The collecting tank 2 is located at 1 left side of reaction chamber, and collecting tank 2 is connected with reaction chamber 1, and collecting tank 2 is regenerated for collecting
Catalyst；The conduit 3 is located at 2 left side of collecting tank, and conduit 3 is connected with reaction chamber 1 and collecting tank 2 respectively, and conduit 3 is used for will
Regenerated catalyst in collecting tank 2 is transported in reaction chamber 1；The circulating pump 4 is located in conduit 3；The catalyst reaction device 5
In reaction chamber 1, catalyst reaction device 5 is located at 2 15 top of air inlet, and catalyst reaction device 5 is reticular structure, and catalysis is anti-
Answer device 5 for providing reaction environment for reactant；The rotating device 6 is located in reaction chamber 1, and rotating device 6 is located at catalysis
5 lower section of reaction unit, rotating device 6 are used to pending exhaust gas being delivered to catalyst reaction device 5；The grinding device 7
In in reaction chamber 1, grinding device 7 is located at 6 lower section of rotating device, and grinding device 7 is used for the anti-of reacted catalyst surface
It answers object to remove, obtains regenerated catalyst；The transmission device 8 is located in reaction chamber 1, and transmission device 8 is located at 72 lower section of regulating wheel,
Transmission device 8 is horizontal to run through reaction chamber 1, and 8 left side of transmission device is in contact with collecting tank 2, and transmission device 8 is used for regeneration catalyzing
Agent is delivered in collecting tank 2.
As one embodiment of the present invention, the rotating device 6 includes turntable 61, strut 62, shift plate 63, motor
One, positioning disk 64, clump weight 65, strainer 67 and barrier plate 68；The turntable 61 is cylinder, and turntable 61 is internally provided with round sky
Chamber, turntable 61 are provided with toroidal cavity in external peripheral surface, and groove is equipped with the hole of several connection circular cavities；The circle
Locating rod and positioning disk 64 are additionally provided in shape cavity, positioning disk 64 is mounted on by locating rod in circular cavity, and positioning disk 64 is
One left side is the irregular cavity that semicircle right side is half elliptic, and slideway 66 is circumferentially provided on 64 outer wall of positioning disk,
Clump weight 65 built in 64 bottom of positioning disk, the weight of clump weight 65 are much larger than the weight of positioning disk 64；63 quantity of the shift plate with
The quantity in the hole on circular cavity is identical, and shift plate 63 is circumferential to be hinged in groove；The strainer 67 is mounted on the side of shift plate 63,
Through-hole is offered in shift plate 63, strainer 67 is for being filtered the granule foreign in exhaust gas；The barrier plate 68 is mounted on filter
On net 67, barrier plate 68 is for making granule foreign stay in strainer 67；62 quantity of the strut is corresponding with the quantity of shift plate 63,
62 one end of strut passes through the hole on circular cavity to be connected with strainer 67, and 62 other end of strut is mounted on the cunning of 64 outer wall of positioning disk
On road 66, strut 62 can be used for band electric filter 67 around the circumferential sliding of slideway 66, strut 62 and move, and realize the vibration of strainer 67；Institute
It states motor one to be fixed on reaction chamber 1, motor one is for driving turntable 61 to rotate.When work, motor one drives turntable 61 to rotate,
Positioning disk 64 is remained stationary as due to the presence of clump weight 65 in circular cavity, shift plate 63 and strainer 67 and strut 62 with
Turntable 61 rotates synchronously, and strainer 67 pushes exhaust gas to move upwards in rotation process, and exhaust gas is after filter screen 67 from shift plate 63
Through-hole is discharged, to stay in the granule foreign in exhaust gas on strainer 67；During this, position while rotation of strut 62
In one end on positioning disk 64, the slideway 66 on positioning disk 64 slides, since 62 length of strut is constant, and positioning disk 64
It is in irregular shape, when strut 62 enters right side half elliptic region, so that strainer 67 is shaken, between strainer 67 and barrier plate 68
Granule foreign shaken off down, fall under gravity into the first ash hole 13, realize the collection of granule foreign, while turntable
Pending exhaust gas is routed up into catalyst reaction device 5 by 61 rotation.
As one embodiment of the present invention, filter screen 21 and the second ash hole 22 are additionally provided on the collecting tank 2；Institute
It states filter screen 21 to be located in collecting tank 2, filter screen 21 is located at the lower section of conduit 3, is provided with through-hole on filter screen 21, on filter screen 21
Through-hole can only cannot pass through regenerated catalyst by dust；Second ash hole 22 is located at 2 bottom of collecting tank, and second goes out
The dust that grey mouth 22 is used to be discharged in collecting tank 2.It when work, is filtered, is filtered by filter screen 21 into the dust in collecting tank 2
Dust afterwards is discharged by the second ash hole 22.
As one embodiment of the present invention, the grinding device 7 includes grinding wheel 71, regulating wheel 72, belt 73 and electricity
Machine two；71 quantity of the grinding wheel is several, and grinding wheel 71 is located in reaction chamber 1, and grinding wheel 71 is for grinding poisoned catalyst；The adjusting
It is several to take turns 72 quantity, regulating wheel 72 is horizontally staggered distribution with grinding wheel 71, and regulating wheel 72 is fixed in reaction chamber 1, and regulating wheel 72 is used
Gap between adjusting grinding wheel 71 and regulating wheel 72；73 quantity of the belt is several, and belt 73 is located at outside reaction chamber 1, belt
73 for connecting grinding wheel 71；The motor two is fixed on reaction chamber 1, and the output shaft of motor two is connected with grinding wheel 71, motor
Two for driving grinding wheel 71 to rotate.When work, motor drives grinding wheel 71 to be rotated together with belt 73, and grinding wheel 71 is to falling in regulating wheel
Poisoned catalyst between 72 and grinding wheel 71 is ground, and the conversion zone on removal poisoned catalyst surface, regulating wheel 72 adjusts sand
The distance between 71 and regulating wheel 72 are taken turns, what grinding obtained after the completion is regenerated catalyst through between regulating wheel 72 and grinding wheel 71
Gap is fallen on transmission device 8.
As one embodiment of the present invention, the transmission device 8 includes conveyer belt 81, belt wheel 82 and motor three；Institute
It states conveyer belt 81 to be located in reaction chamber 1, conveyer belt 81 is further opened with through-hole on conveyer belt 81, leads to for conveying regenerated catalyst
Hole number is several, and through-hole section upper end is that rectangular lower end is trapezoidal, and through-hole is used for the discharge of dust；On the reaction chamber 1 also
It is hinged with one piece of square plate 14, square plate 14 is located at 81 top of conveyer belt, and 14 lower end of square plate is in contact with conveyer belt 81, and square plate 14 is used for
Reaction chamber 1 and collecting tank 2 are separated, while square plate 14 enters collecting tank 2 convenient for regenerated catalyst；82 quantity of the belt wheel is
Two, belt wheel 82 is located in reaction chamber 1, and rectangular recess is additionally provided on belt wheel 82, and rectangular recess quantity is several, and rectangular recess circumferentially divides
Cloth is on belt wheel 82；Drive block 83 is additionally provided on the rectangular recess, drive block 83 is connected by spring with rectangular recess,
The quantity of drive block 83 and distribution are identical as rectangular recess, and drive block 83 is used to the remaining dust in through-hole being discharged；It is described
Motor three is fixed on reaction chamber 1, and motor three is rotated for driving pulley 82.When work, motor three rotates, and falls in transmission device
Regenerated catalyst on 8 enters collecting tank 2 under the action of belt 73 by the square plate 14 between reaction chamber 1 and collecting tank 2, falls
Dust on transmission device 8 falls into 1 bottom of reaction chamber by the through-hole on belt 73 and is discharged by the first ash hole 13；Belt wheel 82
When rotation, drive block 83 enters in through-hole, and through-hole is discharged under the action of drive block 83 in the dust remained in through-hole.
Concrete operations flow is as follows:
When work, pending exhaust gas is passed through into reaction chamber 1 from air inlet 1, from air inlet two into reaction chamber 1
It is passed through ammonia, motor one drives turntable 61 to rotate, and positioning disk 64 is kept due to the presence of clump weight 65 in circular cavity
Motionless, for shift plate 63 with strainer 67 and strut 62 with the synchronous rotation of turntable 61, strainer 67 pushes exhaust gas upward in rotation process
Movement, exhaust gas are discharged after filter screen 67 from the through-hole of shift plate 63, to stay in the granule foreign in exhaust gas on strainer 67；
During this, one end slideway 66 along positioning disk 64 on of the strut 62 while rotation on positioning disk 64 slides,
Since 62 length of strut is constant, and positioning disk 64 is in irregular shape, when strut 62 enters right side half elliptic region, makes strainer
67 shake, and the granule foreign between strainer 67 and barrier plate 68 is shaken off down, fall under gravity into the first ash discharge
Mouth 13 realizes the collection of granule foreign, while pending exhaust gas is routed up into catalysis reaction dress by the rotation of turntable 61
Set 5；The poisoned catalyst generated in reaction process is fallen between regulating wheel 72 and grinding wheel 71, by the grinding of grinding wheel 71, is generated
Regenerated catalyst, be regenerated catalyst through conveyer belt 81 and enter in collecting tank 2, the dust part that is generated in reaction process is logical
The through-hole crossed on belt 73 falls into 1 bottom of reaction chamber, by the first ash hole 13 be discharged reaction chamber 1, another part dust into
Enter collecting tank 2, collecting tank 2 is discharged by the second ash hole 22 of 2 bottom of collecting tank；The dust remained in 73 through-hole of belt exists
Through-hole is discharged under the action of drive block 83 to enter in reaction chamber 1 or collecting tank 2；Regenerated catalyst into collecting tank 2
It is again introduced into reaction chamber 1 by conduit 3 under the action of circulating pump 4 and is reacted with exhaust gas, after reaction, reached through processing
Gas to discharge standard is discharged by exhaust outlet 12.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field is similarly included in the scope of patent protection of the present invention.
Claims (5)
1. a kind of low-temperature circulating regenerates denitration catalyst technique, it is characterised in that：The technique includes the following steps：
Step 1：The preparation and storage of ammonia；
Step 2：After getting out ammonia in step 1, ammonia is evaporated and the ammonia of evaporation is mixed with premix air；
Step 3：After ammonia is mixed with air in step 2, mixed gas injection low-temperature circulating is regenerated into denitration catalyst device；
Step 4：After being passed through mixed gas in step 3, pending exhaust gas is passed through low-temperature circulating and regenerates denitration catalyst device；
Step 5：After being passed through exhaust gas in step 4, waits for exhaust gas denitration reaction to terminate, gas up to standard after processing is discharged；
Wherein, the low-temperature circulating regeneration denitrification apparatus described in step 3 includes reaction chamber (1), collecting tank (2), conduit (3), follows
Ring pumps (4), catalyst reaction device (5), rotating device (6), grinding device (7) and transmission device (8)；On the reaction chamber (1)
It is provided with air inlet one (11), exhaust outlet (12), the first ash hole (13) and air inlet two (15)；The air inlet one (11) position
Left side in reaction chamber (1), air inlet one (11) are used to be passed through pending exhaust gas into reaction chamber (1)；The exhaust outlet
(12) it is located on the right side of reaction chamber (1), exhaust outlet (12) is used to handle gas discharge up to standard；First ash port is located at anti-
Chamber (1) bottom, the first ash hole (13) is answered to be used for the dust discharge reaction chamber (1) in reaction chamber (1)；The air inlet two
(15) it is located above air inlet one (11), air inlet two (15) is for being passed through ammonia into reaction chamber；The collecting tank (2) is located at
On the left of reaction chamber (1), collecting tank (2) is connected with reaction chamber (1), and collecting tank (2) is for collecting regenerated catalyst；The conduit
(3) it is located on the left of collecting tank (2), conduit (3) is connected with reaction chamber (1) and collecting tank (2) respectively, and conduit (3) will be for that will receive
Regenerated catalyst in collection tank (2) is transported in reaction chamber (1)；The circulating pump (4) is located in conduit (3)；The catalysis is anti-
Device (5) is answered to be located in reaction chamber (1), catalyst reaction device (5) is located above air inlet two (15), catalyst reaction device (5)
For reticular structure, catalyst reaction device (5) is used to provide reaction environment for reactant；The rotating device (6) is located at reaction chamber
(1) right side in, rotating device (6) are located at below catalyst reaction device (5), and rotating device (6) is used for the particle in exhaust gas is miscellaneous
Matter filters down while pending exhaust gas is delivered to catalyst reaction device (5)；The grinding device (7) is located at reaction chamber
(1) in, grinding device (7) is located at below rotating device (6), and grinding device (7) is used for the anti-of reacted catalyst surface
It answers layer to remove, obtains regenerated catalyst；The transmission device (8) is located in reaction chamber (1), and transmission device (8) is located at regulating wheel
(72) lower section, transmission device (8) is horizontal to run through reaction chamber (1), is in contact with collecting tank (2) on the left of transmission device (8), transmission dress
(8) are set for regenerated catalyst to be delivered in collecting tank (2).
2. a kind of low-temperature circulating according to claim 1, regenerates denitration catalyst technique, it is characterised in that：The rotating dress
It includes turntable (61), strut (62), shift plate (63), motor one, positioning disk (64), clump weight (65), strainer (67) and resistance to set (6)
Baffle (68)；The turntable (61) is cylinder, and turntable (61) is internally provided with circular cavity, and turntable (61) is set in external peripheral surface
It is equipped with toroidal cavity, groove is equipped with the hole of several connection circular cavities；Be additionally provided in the circular cavity locating rod and
Positioning disk (64), positioning disk (64) are mounted on by locating rod in circular cavity, and positioning disk (64) is that a left side is semicircle
Right side is the irregular cavity of half elliptic, and slideway (66), positioning disk (64) bottom are circumferentially provided on positioning disk (64) outer wall
Clump weight built in portion (65), the weight of clump weight (65) are much larger than the weight of positioning disk (64)；Shift plate (63) quantity and circle
The quantity in the hole on shape cavity is identical, and shift plate (63) is circumferentially hinged in groove；The strainer (67) is mounted on shift plate (63)
Side offers through-hole in shift plate (63), and strainer (67) is for being filtered the granule foreign in exhaust gas；The barrier plate
(68) it is mounted on strainer (67), barrier plate (68) is for making granule foreign stay in strainer (67)；Strut (62) quantity
Corresponding with the quantity of shift plate (63), strut (62) one end passes through the hole on circular cavity to be connected with strainer (67), strut
(62) other end is mounted on the slideway (66) of positioning disk (64) outer wall, and strut (62) can circumferentially be slided around slideway (66), strut
(62) it is used to band electric filter (67) move, realizes the vibration of strainer (67)；The motor one is fixed on reaction chamber (1), motor
One for driving turntable (61) to rotate.
3. a kind of low-temperature circulating according to claim 1 regenerates denitration catalyst technique, it is characterised in that：The collecting tank
(2) filter screen (21) and the second ash hole (22) are additionally provided on；The filter screen (21) is located in collecting tank (2), filter screen
(21) be located at below conduit (3), be provided with through-hole on filter screen (21), the through-hole on filter screen (21) can only by dust without
Regenerated catalyst can be passed through；Second ash hole (22) is located at collecting tank (2) bottom, and the second ash hole (22) is received for being discharged
Collect the dust in tank (2).
4. a kind of low-temperature circulating according to claim 1 regenerates denitration catalyst technique, it is characterised in that：The grinding device
(7) include grinding wheel (71), regulating wheel (72), belt (73) and motor two；Grinding wheel (71) quantity is several, and grinding wheel (71) is located at
In reaction chamber (1), grinding wheel (71) is for grinding poisoned catalyst；Regulating wheel (72) quantity is several, regulating wheel (72) and sand
Wheel (71) is horizontally staggered distribution, and regulating wheel (72) is fixed in reaction chamber (1), and regulating wheel (72) is for adjusting grinding wheel (71) and adjusting
Gap between section wheel (72)；Belt (73) quantity is several, and belt (73) is located at reaction chamber (1) outside, and belt (73) is used for
Connect grinding wheel (71)；The motor two is fixed on reaction chamber (1), and the output shaft of motor two is connected with grinding wheel (71), motor
Two for driving grinding wheel (71) to rotate.
5. a kind of low-temperature circulating according to claim 1 regenerates denitration catalyst technique, it is characterised in that：The transmission device
(8) include conveyer belt (81), belt wheel (82) and motor three；The conveyer belt (81) is located in reaction chamber (1), and conveyer belt (81) is used
In conveying regenerated catalyst, conveyer belt is further opened with through-hole on (81), and number of openings is several, and through-hole section upper end is rectangular lower end
It is trapezoidal, through-hole is used for the discharge of dust；One piece of square plate (14) is also hinged on the reaction chamber (1), square plate (14) is located at
Above conveyer belt (81), square plate (14) lower end is in contact with conveyer belt (81), and square plate (14) is used for reaction chamber (1) and collecting tank
(2) it separates, while square plate (14) enters collecting tank (2) convenient for regenerated catalyst；Belt wheel (82) quantity is two, belt wheel
(82) it is located in reaction chamber (1), rectangular recess is additionally provided on belt wheel (82), rectangular recess quantity is several, and rectangular recess circumferentially divides
Cloth is on belt wheel (82)；Drive block (83) is additionally provided on the rectangular recess, drive block (83) passes through spring and rectangular recess
It is connected, the quantity of drive block (83) and distribution are identical as rectangular recess, and drive block (83) is used for the remaining ash in through-hole
Dirt is discharged；The motor three is fixed on reaction chamber (1), and motor three is rotated for driving pulley (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810602130.0A CN108722177A (en) | 2018-06-12 | 2018-06-12 | A kind of low-temperature circulating regeneration denitration catalyst technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810602130.0A CN108722177A (en) | 2018-06-12 | 2018-06-12 | A kind of low-temperature circulating regeneration denitration catalyst technique |
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| Publication Number | Publication Date |
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| CN108722177A true CN108722177A (en) | 2018-11-02 |
Family
ID=63929358
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810602130.0A Withdrawn CN108722177A (en) | 2018-06-12 | 2018-06-12 | A kind of low-temperature circulating regeneration denitration catalyst technique |
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| CN (1) | CN108722177A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330443A (en) * | 2020-05-03 | 2020-06-26 | 戎有梅 | Organic waste gas photocatalysis equipment with pollutant processing function |
| CN112191100A (en) * | 2020-10-23 | 2021-01-08 | 中国科学院力学研究所 | Ozone degradation device based on high-speed airflow and catalyst gas-solid coupling |
-
2018
- 2018-06-12 CN CN201810602130.0A patent/CN108722177A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330443A (en) * | 2020-05-03 | 2020-06-26 | 戎有梅 | Organic waste gas photocatalysis equipment with pollutant processing function |
| CN112191100A (en) * | 2020-10-23 | 2021-01-08 | 中国科学院力学研究所 | Ozone degradation device based on high-speed airflow and catalyst gas-solid coupling |
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