CN108771963A - A kind of bidirectional flow SCR denitration device - Google Patents
A kind of bidirectional flow SCR denitration device Download PDFInfo
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- CN108771963A CN108771963A CN201810603421.1A CN201810603421A CN108771963A CN 108771963 A CN108771963 A CN 108771963A CN 201810603421 A CN201810603421 A CN 201810603421A CN 108771963 A CN108771963 A CN 108771963A
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- module
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- gear
- sliding block
- grinding
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 100
- 238000000227 grinding Methods 0.000 claims abstract description 75
- 239000003054 catalyst Substances 0.000 claims abstract description 72
- 239000007789 gas Substances 0.000 claims abstract description 51
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000005192 partition Methods 0.000 claims abstract description 41
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 19
- 239000002440 industrial waste Substances 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 13
- 241000220317 Rosa Species 0.000 claims description 12
- 241000883990 Flabellum Species 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 7
- 239000003818 cinder Substances 0.000 claims description 6
- 238000006555 catalytic reaction Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000003546 flue gas Substances 0.000 abstract description 7
- 238000000746 purification Methods 0.000 abstract description 3
- 238000010531 catalytic reduction reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 239000004480 active ingredient Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 244000061176 Nicotiana tabacum Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention belongs to flue gases purification field, specifically a kind of bidirectional flow SCR denitration device, including mixing chamber, air-breathing module, reative cell, plugging module, mixing module and grinding module；Mixing chamber inner horizontal is provided with partition board, and mixing chamber internal cavities are divided into upper, middle and lower three parts by two partition boards；Air-breathing module is used for will be in ammonia and the cavity of industrial waste gas sucking mixing chamber middle section；Reative cell is located at the right side of mixing chamber, and vertical spacing is provided at least two pieces of catalyst layers in reative cell；Plugging module is used to realize the folding of partition board upper vent hole by the movement of air-breathing module；Mixing module is for realizing to entering the ammonia of mixing chamber and being sufficiently mixed for industrial waste gas；Grinding module is for being ground the catalyst in catalyst layer.The present invention can be realized mixing well for gas, be improved the efficiency of denitration by the way of negative pressure sucking；Meanwhile, it is capable to be ground to catalyst, the utilization rate of catalyst is high.
Description
Technical field
The invention belongs to flue gases purification field, specifically a kind of bidirectional flow SCR denitration device.
Background technology
NOx is the main source of atmosphere pollution, and a large amount of discharges can cause huge harm to environment.For protection ring
Border needs to administer NOx.Widely used selective catalysis reduction method (SCR) is that one kind administering NOx from tail gas in the world
The effective ways of discharge.The SCR method used at present is under the effect of the catalyst to restore NOx using NH3 as reducing agent
For harmless N2, to remove the NOx in flue gas.Selective catalytic reduction (Selective Catalytic
Reduction, SCR) be a kind of industrial most widely used gas denitrifying technology, can be applied to station boiler, Industrial Stoves and
The NOx emission of the combustion apparatus such as waste incineration controls, and ideally, the removal efficiency of NOx can be made up to 90% or more, be current energy
The technology that the best stationary source NOx found is administered.Due to the influence for solid contact area of being bullied, the Flow Field Distribution of flue gas in tower body
Unevenness, the limited time that flue gas is contacted with reducing agent, catalyst, catalytic reduction reaction efficiency is low, and is widely present NH3's
The problems such as escape, catalyst blockage, catalyst failure.The raising of denitration efficiency is not only influenced, but also denitration cost is caused to increase,
There are secondary pollution problems.
Patent document 1：A kind of swirling flow atomizing SCR denitration device, application number：201520897103
Patent document 2：A kind of low-temperature circulating regeneration denitration catalyst device, application number：201510017591
In above patent document 1, in order to increase the degree of mixedness of flue gas and reducing agent, using ammonia along exhaust gases passes circumference
The mode that direction circle type eddy flow sprays into virtually increases control to need that gas is passed through in denitrating tower using multi-pipeline
Tobacco curing gas and reducing agent gas are passed through the difficulty of denitrating tower, increase use cost；Meanwhile can not to catalyst failure part into
Row is effectively handled, and keeps the utilization ratio of catalyst not high.
It is in patent document 2 that catalyst is made to fall in grinding device to the processing mode of catalyst surface disabling portion
Be ground, then again by wind turbine will be ground after catalyst be pumped into catalyst layer, increase the intermediate week of catalyst
Journey is turned over, the waste of catalyst is be easy to cause；Meanwhile dust can be pumped into catalyst layer, practical effect by the mode of suction simultaneously
Fruit is bad.
Invention content
In order to make up for the deficiencies of the prior art, a kind of bidirectional flow SCR denitration device proposed by the present invention, passes through air-breathing mould
Block, plugging module and mixing module cooperate with each other, and gas sucking mixing chamber is thoroughly mixed, then by gas
Compression enters reative cell, ensure that mixing well for gas；Meanwhile catalyst can be ground by the way that grinding module is arranged
To remove the failure layer of catalyst surface, the utilization rate of catalyst is improved.
The technical solution adopted by the present invention to solve the technical problems is：A kind of bidirectional flow SCR denitration of the present invention
Device, including mixing chamber, air-breathing module, reative cell, plugging module, mixing module and grinding module；It is set inside the mixing chamber
It is equipped with cavity structure, mixing chamber bottom and top are both provided with air inlet, and air inlet is respectively used to be passed through ammonia and industrial waste gas,
Mixing chamber inner horizontal is provided with partition board；The partition board quantity is two, and partition board will mix in mixing chamber in arrangement, two partition boards up and down
It closes chamber interior cavity and is divided into upper, middle and lower three parts, offer venthole on partition board vertically, mixing chamber is in the sky positioned at middle section
Venthole is provided on chamber right side wall, mixing chamber is provided with automatic valve in the position of venthole；The air-breathing module is located at mixed
In the cavity for closing room middle section, air-breathing module is used for will be in ammonia and the cavity of industrial waste gas sucking mixing chamber middle section；
The reative cell is located at the right side of mixing chamber, and cavity structure, the cavity of reative cell and the venthole of mixing chamber is arranged in reative cell
It is connected, vertical spacing is provided at least two pieces of catalyst layers in reative cell, and catalyst layer is for completing SCR reactions；The envelope
Stifled module is used to realize the folding of partition board upper vent hole by the movement of air-breathing module；The mixing module is mounted on air-breathing module
On, mixing module is for realizing to entering the ammonia of mixing chamber and being sufficiently mixed for industrial waste gas；The grinding module is located at anti-
Interior is answered, grinding module is for being ground the catalyst in catalyst layer, the no longer valid part of removal catalyst coating；
The air-breathing module includes screw rod, motor and sliding block；The screw rod is horizontally arranged in the cavity of mixing chamber middle section；It is described
Sliding block is connected through a screw thread on screw rod, and sliding block upper and lower surface and baffle contacts, sliding block can be moved horizontally along screw rod；
The motor is mounted on mixing chamber outer wall, and motor output shaft is connected with screw rod.When work, motor drives screw rod rotation, sliding
Block moves left and right in mixing chamber.
The plugging module includes driving lever, spring one, idler wheel and plugging plate；The sliding block is on the end face with baffle contacts
It is vertically arranged with sliding slot；The driving lever is set to by spring one in the sliding slot of sliding block；The partition board is in contact with sliding block
End face on the setting of corresponding with venthole position it is fluted, the groove of partition board is communicated with venthole, the number of recesses of partition board
It is identical as the quantity of venthole；The idler wheel is vertically installed in the groove of sliding block, and idler wheel is provided with torsional spring in installation position, rolling
Wheel external peripheral surface is provided with toothed projections, and driving lever can be in contact with the toothed projections of roller surface, to pass through driving lever
Move horizontally the rotation for realizing idler wheel；The plugging plate is fixedly connected with idler wheel, and plugging plate is located in the groove of partition board, plugging plate
Venthole for blocking partition board.When motor drives screw rod rotation that sliding block is made to be moved to the left, with the movement of sliding block, driving lever by
One, by the roller striking of sliding block position, makes idler wheel rotate, and idler wheel rotation realizes that plugging plate is opened, ammonia and industrial waste gas warp
Air inlet enters in the cavity of mixing chamber middle section, and due to the presence of torsional spring, idler wheel slowly rotates backward, and makes plugging plate weight
Newly venthole is blocked, sliding block constantly moves downward, and venthole is made to be gradually opened and slowly close, to make to be full of in mixing chamber
Mixed gas；Then, motor rotates backward, and sliding block is to there is movement, and since plugging plate is closed, compressed air is by going out
Stomata is discharged into reative cell and carries out catalytic reduction reaction.
The mixing module includes gear one, bevel gear one, bevel gear two, gear two, ring gear and paddle；Described group
Bar is provided with tooth-shape structure on right side；The gear one is mounted in sliding block, and gear one is mutually nibbled with driving lever by tooth-shape structure
It closes；The bevel gear one is co-axially mounted with gear one, and bevel gear one is located in sliding block；The bevel gear two nibbles with one phase of bevel gear
It closes；The gear two is co-axially mounted with bevel gear two, and gear two is mounted on sliding block, and gear two is located at the right side of sliding block；It is described
Ring gear is rotatably installed on the right side of sliding block, and ring gear is meshed with gear two；The paddle is fixed on ring gear
On right side, paddle is stirred mixing with the rotation of ring gear to mixing indoor gas.In the mistake of slide block movement
Cheng Zhong, driving lever move up and down because of the contact with gear, and driving lever movement band moving gear one rotates, through bevel gear one and cone
The transmission of gear two makes the ring gear on sliding block right side rotate, and the rotation of ring gear drives paddle to be mixed to entering
The ammonia and industrial waste gas of room are constantly stirred, and the mixing of gas is promoted, and improve the efficiency of denitration.
The grinding module includes grinding rod, support plate and telescopic rod, the grinding rod with react indoor catalyst layer
Quantity is corresponding, and grinding rod is penetrated from the lower end of reative cell inside catalyst layer, and grinding rod is for being ground catalyst；Institute
The lower end that support plate is located at grinding rod is stated, is hinged between grinding rod and support plate, ground is articulated in the middle part of support plate；It is described to stretch
Contracting bar is fixed on ground, and telescopic rod upper end is hinged with support plate, and the articulated position of telescopic rod deviates the center of support plate.Catalysis
Catalyst in oxidant layer can fail on surface during carrying out denitration reaction, hinder catalytic inner active ingredient
It is continuing with, after catalyst coating fails, telescopic rod pushes support plate that grinding rod is made to move up and down in catalyst layer, realizes
Grinding to catalyst, to improve the service efficiency of catalyst.
The grinding rod is connected by link block with support plate；The link block include fixed plate, air bag, spring two,
Movable plate, tracheae and Rose Box；The grinding rod outer surface is provided with helical raised, and helical raised is used to improve grinding
Effect is provided with into cinder hole in helical raised, and grinding rod is rotatably installed in fixed plate, is provided with along axis inside grinding rod
Scum hole, scum hole are communicated with into cinder hole；Cavity, the cavity of fixed plate and the scum hole of grinding rod are provided in the fixed plate
It communicates, rectangular recess is provided on the lower face of fixed plate, sliding groove is provided in the left and right sidewall of rectangular recess；The activity
Plate level is set in the rectangular recess of fixed plate, and movable plate left and right ends are located in sliding groove, and movable plate is mutually cut with scissors with support plate
It connects；The spring two is located in sliding groove, and two upper end of spring is fixed at the top of sliding groove, and two lower end of spring is connected with movable plate
It connects；The air bag is set to the top of movable plate, and air bag is located in the rectangular recess of fixed plate, air bag respectively with fixed plate and work
Movable plate is connected, and is connected to Rose Box realization by tracheae between air bag and the cavity of fixed plate, air bag is upper using movable plate
The variation of volume is realized in lower movement, and to be evacuated to catalyst layer by grinding rod, the dust ground is extracted out；Institute
Rose Box is stated for being filtered to the dust of extraction, realizes the collection of dust.Support plate is pushed to make on grinding rod in telescopic rod
When lower movement, movable plate moves up and down along sliding groove, so that the volume in air bag is changed and generates negative pressure, to make grinding
The dust generated in the process is extracted out by the scum hole of grinding rod, and the dust of extraction is filtered through Rose Box, realizes dust
Automatic collection.
The mixing chamber is equipped with stirring flabellum in venthole, and stirring flabellum is used to further realize the mixing of gas.
When sliding block moves right, gas is compressed, and gas enters reative cell through venthole, and during this, gas makes stirring flabellum, carries
The high effect of mixing.
Beneficial effects of the present invention are as follows：
1. a kind of bidirectional flow SCR denitration device of the present invention, air-breathing module of the present invention, plugging module and mixed
Even module cooperates with each other, and is sucked pending exhaust gas and ammonia in mixing chamber using negative pressure, to gas during sucking
Body is adequately stirred, makes gas mixing, then the gas indentation reative cell after mixing is carried out catalytic reduction reaction, reaction
It is efficient.
2. a kind of bidirectional flow SCR denitration device of the present invention, the present invention by be arranged grinding module to catalyst into
Row grinding, to remove the disabling portion of catalyst coating, improves the utilization rate of catalyst and the working efficiency of device.
3. a kind of bidirectional flow SCR denitration device of the present invention, grinding module of the invention can be while grinding
Change to form negative pressure using the volume of air bag, the dust ground is extracted out in time, automatic cleaning is realized, avoids causing
The blocking of catalyst reduces the maintenance cost of device.
Description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is partial enlarged view at the B of Fig. 1 of the present invention；
Fig. 4 is the schematic diagram that grinding rod of the present invention is mounted on link block；
In figure：Mixing chamber 1, air-breathing module 2, reative cell 3, plugging module 4, mixing module 5, grinding module 6, partition board 11,
Catalyst layer 7, screw rod 21, motor 22, sliding block 23, driving lever 41, idler wheel 42, plugging plate 43, gear 1, gear 2 52, internal tooth
Circle 53, paddle 54, grinding rod 61, support plate 62, telescopic rod 63, link block 8, fixed plate 81, air bag 82, movable plate 83, mistake
Filter box 84, stirring flabellum 9.
Specific implementation mode
The structure of the bidirectional flow SCR denitration device of an embodiment of the present invention is carried out using Fig. 1-Fig. 4 as described below.
As shown in Figure 1, a kind of bidirectional flow SCR denitration device of the present invention, including it is mixing chamber 1, air-breathing module 2, anti-
Answer room 3, plugging module 4, mixing module 5 and grinding module 6；The mixing chamber 1 is internally provided with cavity structure, 1 bottom of mixing chamber
Portion and top are both provided with air inlet, and air inlet is respectively used to be passed through ammonia and industrial waste gas, and 1 inner horizontal of mixing chamber is provided with
Partition board 11；11 quantity of the partition board is two, and for partition board 11 in arrangement up and down in mixing chamber 1, two partition boards 11 are empty by 1 inside of mixing chamber
Chamber is divided into upper, middle and lower three parts, offers venthole on partition board 11 vertically, mixing chamber 1 is in the cavity right side wall positioned at middle section
On be provided with venthole, mixing chamber 1 is provided with automatic valve in the position of venthole；The air-breathing module 2 is located in mixing chamber 1
Between part cavity in, air-breathing module 2 is for will be in the cavity of ammonia and industrial waste gas sucking mixing chamber middle section；It is described anti-
It answers room 3 to be located at the right side of mixing chamber 1, cavity structure, the cavity of reative cell 3 and the venthole phase of mixing chamber 1 is set in reative cell 3
It is connected to, vertical spacing is provided at least two pieces of catalyst layers 7 in reative cell 3, and catalyst layer 7 is for completing SCR reactions；The envelope
Stifled module 4 is used to realize the folding of 11 upper vent hole of partition board by the movement of air-breathing module 2；The mixing module 5, which is mounted on, inhales
In gas module 2, mixing module 5 is for realizing to entering the ammonia of mixing chamber 1 and being sufficiently mixed for industrial waste gas；The lap
Block 6 is located in reative cell 3, and grinding module 6 is for being ground the catalyst in catalyst layer 7, and removal catalyst coating is
Part through failure；The air-breathing module 2 includes screw rod 21, motor 22 and sliding block 23；The screw rod 21 is horizontally arranged at mixing
In the cavity of 1 middle section of room；The sliding block 23 is connected through a screw thread on screw rod 21,23 upper and lower surface of sliding block and partition board
11 contacts, sliding block 23 can be moved horizontally along screw rod 21；The motor 22 is mounted on 1 outer wall of mixing chamber, and motor 22 exports
Axis is connected with screw rod 21.When work, motor 22 drives screw rod 21 to rotate, and sliding block 23 moves left and right in mixing chamber 1.
As shown in figs. 1 and 3, the plugging module 4 includes driving lever 41, spring one, idler wheel 42 and plugging plate 43；The sliding block
23 are vertically arranged with sliding slot on the end face contacted with partition board 11；The driving lever 41 is set to the cunning of sliding block 23 by spring one
In slot；Fluted, partition board 11 is arranged in the position corresponding with venthole on the end face being in contact with sliding block 23 of the partition board 11
Groove communicated with venthole, the number of recesses of partition board 11 is identical as the quantity of venthole；The idler wheel 42 is vertically installed at cunning
In the groove of block 23, idler wheel 42 is provided with torsional spring in installation position, and 42 external peripheral surface of idler wheel is provided with toothed projections, driving lever 41
It can be in contact with the toothed projections on 42 surface of idler wheel, to pass through the rotation for moving horizontally realization idler wheel 42 of driving lever 41；Institute
It states plugging plate 43 to be fixedly connected with idler wheel 42, plugging plate 43 is located in the groove of partition board 11, and plugging plate 43 is for blocking partition board 11
Venthole.When motor 22 drives the rotation of screw rod 21 that sliding block 23 is made to be moved to the left, with the movement of sliding block 23, driving lever 41 is one by one
The idler wheel 42 of 23 position of sliding block is stirred, idler wheel 42 is made to rotate, the rotation of idler wheel 42 realizes that plugging plate 43 is opened, ammonia and work
Industry exhaust gas enters through air inlet in the cavity of 1 middle section of mixing chamber, and due to the presence of torsional spring, idler wheel 42 is slowly reversed to be turned
It is dynamic, so that plugging plate 43 is again blocked venthole, sliding block 23 constantly moves downward, and venthole is made to be gradually opened and slowly close,
To make to be full of mixed gas in mixing chamber 1；Then, motor 22 rotates backward, and sliding block 23 is to there is movement, at plugging plate 43
In closed state, compressed air is discharged into reative cell 3 by venthole and carries out catalytic reduction reaction.
As illustrated in fig. 1 and 2, the mixing module 5 include gear 1, it is bevel gear one, bevel gear two, gear 2 52, interior
Gear ring 53 and paddle 54；The driving lever is provided with tooth-shape structure on 41 right side；The gear 1 is mounted in sliding block 23,
Gear 1 is meshed with driving lever 41 by tooth-shape structure；The bevel gear 1 is co-axially mounted with gear 1, bevel gear one
51 are located in sliding block 23；The bevel gear 2 52 is meshed with bevel gear 1；The gear 2 52 and bevel gear 2 52 are coaxial
Installation, gear 2 52 are mounted on sliding block 23, and gear 2 52 is located at the right side of sliding block 23；The ring gear 53 is rotatably installed in cunning
On the right side of block 23, ring gear 53 is meshed with gear 2 52；The paddle 54 is fixed on the right side of ring gear 53,
Paddle 54 is stirred mixing with the rotation of ring gear 53 to the gas in mixing chamber 1.In the process that sliding block 23 moves
In, driving lever 41 moves up and down because of the contact with gear, and the movement band moving gear 1 of driving lever 41 rotates, through bevel gear one
51 and bevel gear 2 52 transmission, so that the ring gear 53 on 23 right side of sliding block is rotated, the rotation of ring gear 53 drive is stirred
It mixes leaf 54 constantly to stir the ammonia and industrial waste gas that enter mixing chamber 1, promotes the mixing of gas, improve denitration
Efficiency.
As shown in Figure 1, the grinding module 6 include grinding rod 61, support plate 62 and telescopic rod 63, the grinding rod 61 with
7 quantity of catalyst layer in reative cell 3 is corresponding, and grinding rod 61 is penetrated from the lower end of reative cell 3 inside catalyst layer 7, grinding
Stick 61 is for being ground catalyst；The support plate 62 is located at the lower end of grinding rod 61, grinding rod 61 and support plate 62 it
Between be hinged, the middle part of support plate 62 is articulated with ground；The telescopic rod 63 is fixed on ground, 63 upper end of telescopic rod and support plate 62
It is hinged, the articulated position of telescopic rod 63 deviates the center of support plate 62.Catalyst in catalyst layer 7 is carrying out denitration reaction
During surface can fail, hinder being continuing with for catalytic inner active ingredient, after catalyst coating fails,
Telescopic rod 63 pushes support plate 62 that grinding rod 61 is made to move up and down in catalyst layer 7, the grinding to catalyst is realized, to carry
The high service efficiency of catalyst.
As shown in figure 4, the grinding rod 61 is connected by link block 8 with support plate 62；The link block 8 includes fixing
Plate 81, air bag 82, spring two, movable plate 83, tracheae and Rose Box 84；It is convex that 61 outer surface of the grinding rod is provided with helical form
It rises, helical raised is used to improve the effect of grinding, is provided with into cinder hole in helical raised, and grinding rod 61 is rotatably installed in solid
On fixed board 81, axis is provided with scum hole inside grinding rod 61, scum hole is communicated with into cinder hole；Setting in the fixed plate 81
There are cavity, the cavity of fixed plate 81 to be communicated with the scum hole of grinding rod 61, rectangular recess be provided on the lower face of fixed plate 81,
It is provided with sliding groove in the left and right sidewall of rectangular recess；The movable plate 83 is horizontally placed in the rectangular recess of fixed plate 81,
83 left and right ends of movable plate are located in sliding groove, and movable plate 83 is hinged with support plate 62；The spring two is located in sliding groove,
Two upper end of spring is fixed at the top of sliding groove, and two lower end of spring is connected with movable plate 83；The air bag 82 is set to movable plate
83 top, air bag 82 are located in the rectangular recess of fixed plate 81, and air bag 82 is connected with fixed plate 81 and movable plate 83 respectively,
It is connected to the realization of Rose Box 84 by tracheae between air bag 82 and the cavity of fixed plate 81, above and below the utilization movable plate 83 of air bag 82
The variation of volume is realized in movement, and to be evacuated to catalyst layer 7 by grinding rod 61, the dust ground is extracted out；
The Rose Box 84 realizes the collection of dust for being filtered to the dust of extraction.Support plate 62 is pushed to make in telescopic rod 63
When grinding rod 61 moves up and down, movable plate 83 moves up and down along sliding groove, keeps the generation that changes of the volume in air bag 82 negative
Pressure, to, so that the dust generated in process of lapping is passed through the scum hole extraction of grinding rod 61, the dust of extraction through Rose Box 84 into
Row filtering, realizes the automatic collection of dust.
As shown in Figure 1, the mixing chamber 1 is equipped with stirring flabellum 9 in venthole, stirring flabellum 9 is for further real
The mixing of existing gas.When sliding block 23 moves right, gas is compressed, and gas enters reative cell 3 through venthole, during this,
Gas makes stirring flabellum 9, improves the effect of mixing.
Specific workflow is as follows：
When work, motor 22 drives screw rod 21 to rotate, and sliding block 23 moves left and right in mixing chamber 1.When motor 22 drives spiral shell
When the rotation of bar 21 makes sliding block 23 be moved to the left, with the movement of sliding block 23, driving lever 41 is one by one by the idler wheel of 23 position of sliding block
42 stir, and idler wheel 42 is made to rotate, and the rotation of idler wheel 42 realizes that plugging plate 43 is opened, and ammonia and industrial waste gas enter mixing through air inlet
In the cavity of 1 middle section of room, due to the presence of torsional spring, idler wheel 42 slowly rotates backward, and makes plugging plate 43 again will ventilation
Hole is blocked, and sliding block 23 constantly moves downward, and venthole is made to be gradually opened and slowly close, to make in mixing chamber 1 full of mixing
Gas；Then, motor 22 rotates backward, and sliding block 23 is to there is movement, and since plugging plate 43 is closed, compressed air passes through
Venthole is discharged into reative cell 3 and carries out catalytic reduction reaction.
During sliding block 23 moves, driving lever 41 moves up and down because of the contact with gear, and driving lever 41 moves
Band moving gear 1 rotates, and the transmission through bevel gear 1 and bevel gear 2 52 makes the ring gear 53 on 23 right side of sliding block send out
The rotation of raw rotation, ring gear 53 drives paddle 54 constantly to stir the ammonia and industrial waste gas that enter mixing chamber 1,
The mixing for promoting gas, improves the efficiency of denitration.
Catalyst in catalyst layer 7 can fail on surface during carrying out denitration reaction, hinder catalyst
Internal active ingredient is continuing with, and after catalyst coating fails, telescopic rod 63 pushes support plate 62 that grinding rod 61 is made to urge
It moves up and down in agent layer 7, the grinding to catalyst is realized, to improve the service efficiency of catalyst.
When telescopic rod 63 pushes support plate 62 that grinding rod 61 is made to move up and down, movable plate 83 is transported up and down along sliding groove
It is dynamic, so that the volume in air bag 82 is changed and generate negative pressure, to make the dust generated in process of lapping pass through grinding rod 61
Scum hole is extracted out, and the dust of extraction is filtered through Rose Box 84, realizes the automatic collection of dust.
More than, it is illustrated about one embodiment of the present invention, but the present invention is not limited to the above embodiments, not
It can be made various changes in the range of disengaging present subject matter.
(A) in the above-described embodiment, moving left and right for sliding block is realized by electric motor driven screw, but not limited to this, it is sliding
Block can also be moved left and right by realizations such as cylinder, telescopic rods.
(B) in the above-described embodiment, grinding rod is inserted into inside catalyst layer below catalyst layer and is ground, but not
It is limited to this, grinding rod can also be inserted into from the top of catalyst layer inside catalyst layer.
Industrial applicibility
According to the present invention, exhaust gas can successfully carry out denitration process in this denitrification apparatus, to which this denitrification apparatus exists
It is useful in filed of flue gas purification.
Claims (6)
1. a kind of bidirectional flow SCR denitration device, including mixing chamber (1), air-breathing module (2), reative cell (3), plugging module (4),
Mixing module (5) and grinding module (6)；The mixing chamber (1) is internally provided with cavity structure, mixing chamber (1) bottom and top
It is both provided with air inlet, air inlet is respectively used to be passed through ammonia and industrial waste gas, and mixing chamber (1) inner horizontal is provided with partition board
(11)；Partition board (11) quantity is two, and partition board (11) is in arrangement up and down in the mixing chamber (1), and two partition boards (11) are by mixing chamber
(1) internal cavities are divided into upper, middle and lower three parts, offer venthole on partition board (11) vertically, mixing chamber (1) is positioned at middle part
It is provided with venthole on the cavity right side wall divided, mixing chamber (1) is provided with automatic valve in the position of venthole；The air-breathing mould
Block (2) is located in the cavity of mixing chamber (1) middle section, and air-breathing module (2) is used to ammonia and industrial waste gas sucking mixing chamber
In the cavity of middle section；The reative cell (3) is located at the right side of mixing chamber (1), cavity structure is arranged in reative cell (3), instead
The cavity of room (3) is answered to be connected with the venthole of mixing chamber (1), reative cell (3) interior vertical spacing is provided at least two pieces catalysis
Oxidant layer (7), catalyst layer (7) is for completing SCR reactions；The plugging module (4) is used for real by the movement of air-breathing module (2)
The folding of existing partition board (11) upper vent hole；The mixing module (5) is mounted in air-breathing module (2), and mixing module (5) is for real
Now to entering the ammonia of mixing chamber (1) and being sufficiently mixed for industrial waste gas；The grinding module (6) is located in reative cell (3), grinds
Mill module (6) is for being ground the catalyst in catalyst layer (7), the no longer valid part of removal catalyst coating；Its
It is characterized in that：The air-breathing module (2) includes screw rod (21), motor (22) and sliding block (23)；The screw rod (21) is horizontally mounted
In the cavity of mixing chamber (1) middle section；The sliding block (23) is connected through a screw thread on screw rod (21), sliding block (23)
Upper and lower surface is contacted with partition board (11), and sliding block (23) can be moved horizontally along screw rod (21)；The motor (22) is mounted on mixed
It closes on room (1) outer wall, motor (22) output shaft is connected with screw rod (21).
2. a kind of bidirectional flow SCR denitration device according to claim 1, it is characterised in that：The plugging module (4) includes
Driving lever (41), spring one, idler wheel (42) and plugging plate (43)；The sliding block (23) is vertical in the end face upper edge contacted with partition board (11)
To being provided with sliding slot；The driving lever (41) is set to by spring one in the sliding slot of sliding block (23)；The partition board (11) with cunning
Fluted, groove and the venthole phase of partition board (11) is arranged in position corresponding with venthole on the end face that block (23) is in contact
Logical, the number of recesses of partition board (11) is identical as the quantity of venthole；The idler wheel (42) is vertically installed at the groove of sliding block (23)
Interior, idler wheel (42) is provided with torsional spring in installation position, and idler wheel (42) external peripheral surface is provided with toothed projections, and driving lever (41) can
It is in contact with the toothed projections on idler wheel (42) surface, to pass through the rotation for moving horizontally realization idler wheel (42) of driving lever (41)；
The plugging plate (43) is fixedly connected with idler wheel (42), and plugging plate (43) is located in the groove of partition board (11), and plugging plate (43) is used
In the venthole for blocking partition board (11).
3. a kind of bidirectional flow SCR denitration device according to claim 2, it is characterised in that：The mixing module (5) includes
Gear one (51), bevel gear one, bevel gear two, gear two (52), ring gear (53) and paddle (54)；The driving lever (41) is right
Tooth-shape structure is provided on end face；The gear one (51) is mounted in sliding block (23), and gear one (51) passes through with driving lever (41)
Tooth-shape structure is meshed；The bevel gear one is co-axially mounted with gear one (51), and bevel gear one is located in sliding block (23)；The cone
Gear two is meshed with bevel gear one；The gear two (52) is co-axially mounted with bevel gear two, and gear two (52) is mounted on sliding block
(23) on, gear two (52) is located at the right side of sliding block (23)；The ring gear (53) is rotatably installed in the right side of sliding block (23)
On, ring gear (53) is meshed with gear two (52)；The paddle (54) is fixed on the right side of ring gear (53), stirring
Leaf (54) is stirred mixing with the rotation of ring gear (53) to the gas in mixing chamber (1).
4. a kind of bidirectional flow SCR denitration device according to claim 1, it is characterised in that：The grinding module (6) includes
Grinding rod (61), support plate (62) and telescopic rod (63), the grinding rod (61) and catalyst layer (7) number in reative cell (3)
Measure corresponding, grinding rod (61) penetrates that catalyst layer (7) is internal, and grinding rod (61) is used for catalysis from the lower end of reative cell (3)
Agent is ground；The support plate (62) is located at the lower end of grinding rod (61), is mutually cut with scissors between grinding rod (61) and support plate (62)
It connects, ground is articulated in the middle part of support plate (62)；The telescopic rod (63) is fixed on ground, telescopic rod (63) upper end and support plate
(62) it is hinged, the articulated position of telescopic rod (63) deviates the center of support plate (62).
5. a kind of bidirectional flow SCR denitration device according to claim 4, it is characterised in that：The grinding rod (61) passes through
Link block (8) is connected with support plate (62)；The link block (8) includes fixed plate (81), air bag (82), spring two, activity
Plate (83), tracheae and Rose Box (84)；Grinding rod (61) outer surface is provided with helical raised, and helical raised is for carrying
The effect of height grinding, is provided with into cinder hole in helical raised, grinding rod (61) is rotatably installed in fixed plate (81), grinding rod
(61) internal that axis is provided with scum hole, scum hole is communicated with into cinder hole；It is provided with cavity in the fixed plate (81), it is fixed
The cavity of plate (81) is communicated with the scum hole of grinding rod (61), and rectangular recess, rectangle are provided on the lower face of fixed plate (81)
It is provided with sliding groove in the left and right sidewall of groove；The movable plate (83) is horizontally placed in the rectangular recess of fixed plate (81),
Movable plate (83) left and right ends are located in sliding groove, and movable plate (83) is hinged with support plate (62)；The spring two, which is located at, to be slided
In dynamic slot, two upper end of spring is fixed at the top of sliding groove, and two lower end of spring is connected with movable plate (83)；The air bag (82) sets
Be placed in the top of movable plate (83), air bag (82) is located in the rectangular recess of fixed plate (81), air bag (82) respectively with fixed plate
(81) it is connected with movable plate (83), is realized by tracheae and Rose Box (84) between air bag (82) and the cavity of fixed plate (81)
Connection, air bag (82) realize the variation of volume using the up and down motion of movable plate (83), thus by grinding rod (61) to catalysis
Oxidant layer (7) is evacuated, and the dust ground is extracted out；The Rose Box (84) is used to be filtered the dust of extraction,
Realize the collection of dust.
6. a kind of bidirectional flow SCR denitration device according to claim 1, it is characterised in that：The mixing chamber (1) is in outlet
Stirring flabellum (9) is installed, stirring flabellum (9) is used to further realize the mixing of gas in hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810603421.1A CN108771963B (en) | 2018-06-12 | 2018-06-12 | Two-way flow SCR denitrification facility |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603421.1A CN108771963B (en) | 2018-06-12 | 2018-06-12 | Two-way flow SCR denitrification facility |
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| CN108771963A true CN108771963A (en) | 2018-11-09 |
| CN108771963B CN108771963B (en) | 2021-01-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109517995A (en) * | 2018-11-29 | 2019-03-26 | 刘童童 | A kind of metal smelting furnace clinker re-treating process |
| CN110433621A (en) * | 2019-07-24 | 2019-11-12 | 湘潭大学 | A kind of method and device thereof of kiln gas charcoal reduction denitration |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204365160U (en) * | 2014-12-26 | 2015-06-03 | 大连贝斯特环境工程设备有限公司 | The empty blender of the dynamic ammonia of a kind of SCR denitration |
| CN206463769U (en) * | 2017-01-24 | 2017-09-05 | 新疆旭日环保股份有限公司 | SNCR high-efficiency mixed flow devices |
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2018
- 2018-06-12 CN CN201810603421.1A patent/CN108771963B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204365160U (en) * | 2014-12-26 | 2015-06-03 | 大连贝斯特环境工程设备有限公司 | The empty blender of the dynamic ammonia of a kind of SCR denitration |
| CN206463769U (en) * | 2017-01-24 | 2017-09-05 | 新疆旭日环保股份有限公司 | SNCR high-efficiency mixed flow devices |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109517995A (en) * | 2018-11-29 | 2019-03-26 | 刘童童 | A kind of metal smelting furnace clinker re-treating process |
| CN110433621A (en) * | 2019-07-24 | 2019-11-12 | 湘潭大学 | A kind of method and device thereof of kiln gas charcoal reduction denitration |
| CN110433621B (en) * | 2019-07-24 | 2021-07-30 | 湘潭大学 | Method and device for reduction denitration of kiln flue gas carbon |
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| CN108771963B (en) | 2021-01-26 |
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Effective date of registration: 20210105 Address after: 235000 Shuoli mine gate, Duji District, Huaibei City, Anhui Province Applicant after: ANHUI ZISHUO ENVIRONMENTAL ENGINEERING TECHNOLOGY Co.,Ltd. Address before: 610041 Southwest Jiaotong University, Western Park, Chengdu high tech Zone, Sichuan Province Applicant before: Shi Hongyang |
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