CN206168115U - Low temperature flue gas desulfurization and dust removal , denitration and pyrolysis integrated device in compact high efficiency - Google Patents
Low temperature flue gas desulfurization and dust removal , denitration and pyrolysis integrated device in compact high efficiency Download PDFInfo
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- CN206168115U CN206168115U CN201621137133.4U CN201621137133U CN206168115U CN 206168115 U CN206168115 U CN 206168115U CN 201621137133 U CN201621137133 U CN 201621137133U CN 206168115 U CN206168115 U CN 206168115U
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- denitration
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Abstract
The utility model relates to a low temperature flue gas desulfurization and dust removal, denitration and pyrolysis integrated device in compact high efficiency, spout ammonia mixing section and denitration reaction section including desulfurization collection dirt purification section, pyrolysis, desulfurization collection dirt purification section is 2 groups and arranges side by side that ammonia mixing section and denitration reaction section are spouted in the pyrolysis that shares, distribution of air flow water conservancy diversion structure is established to desulfurization collection dirt purification section, and distribution of air flow water conservancy diversion structure comprises the entry guide plate and the setting equipartition baffle in the ash bucket below the filter bag that set up between flue gas entry and filter bag, the pyrolysis is spouted the ammonia mixing section and is established and spout ammonia structure, the pyrolysis gas delivery injection structure body and mix the structure that flow equalizes, spouts the ammonia structure by ammonia surge chamber, flange connecting pipe with spout the ammonia branch pipe and constitute, the pyrolysis gas delivery injection structure body comprises pyrolysis air cushioning chamber, flow control nozzle stub and pyrolysis gas service pipe, it flow equalizes layer and foamed metal by the orifice plate and flow equalizes and layer form to mix the structure that flow equalizes. The utility model discloses the structure is compacter, and the flue gas treatment effeciency is higher.
Description
Technical field
The utility model is related to middle low-temperature flue gas desulphurization denitration technical field, more particularly to low temperature in a kind of compact high efficient
The makeup of flue gas desulfurization and dedusting, denitration and thermal decomposition integrated is put.
Background technology
Flue gas NH3Low-temperature denitration technique in-SCR methods, handled flue-gas temperature is less than 300 DEG C, in this temperature range, flue gas
In content of sulfur dioxide and water content can to denitration efficiency produce strong influence.The underway low-temperature denitration of traditional handicraft
When, dry method or semi-dry desulfurizing process can be set before denitrating technique.Need to set sack cleaner after desulfurization to particulate matter containing desulfurization
Smoke filtration dedusting.
But some engineering projects are limited by place, it is impossible to while arranging sack cleaner and Benitration reactor.In addition, low temperature
Denitrating catalyst can be by small part oxidizing sulfur dioxide into sulfur trioxide, and sulfur trioxide reacts the ammonium sulfate that generates with ammonia can be
Flue-gas temperature condenses into emplastic in the case of being less than 230 DEG C, is attached to catalyst surface, has a strong impact on denitration efficiency.
The Chinese patent of Application No. 201410478420.0 discloses a kind of " middle low-temperature flue gas desulfurization and dedusting denitration and de-
Denox catalyst Thermal desorption integrated apparatus ", including the desulfurization dust clean-up stage, parsing spray that are integrated in from the bottom to top in a tower body
Ammonia mixing section and denitration reaction section；The desulfurizing agent and Desulphurization not reacted completely in sock filtration flue gas is first passed through, flue gas is made
By being fully contacted further desulfurization with desulfurizing agent during Chalk-dust filtering layer, then ammonia is sprayed into into the flue gas after sock filtration
In be sufficiently mixed with it, then enter air Jing after denitrating catalyst denitration；Simultaneously high temperature pyrolysis analysis apparatus are set to denitrating catalyst
Online Thermal desorption (being also referred to as pyrolyzed) regeneration is carried out, low-temperature denitration catalyst continues service life in holding.The patent is realized
Flue gas desulfurization and dedusting, denitration, the Thermal desorption regeneration integration of denitrating catalyst scene, saving is once invested, and reduces operating cost, is subtracted
Few floor space.
The content of the invention
The utility model provides low-temperature flue gas desulfurization and dedusting, denitration and thermal decomposition integrated makeup in a kind of compact high efficient
Put, on the basis of the denitration of original middle low-temperature flue gas desulfurization and dedusting and denitrating catalyst Thermal desorption integrated apparatus, added one
Group desulfurization dust clean-up stage, makes structure compacter, greatly improves fume treatment efficiency；Meanwhile, to airflow uniform distribution flow-guiding structure
Body, spray ammonia structure, pyrolysis gas conveying injection structure body and mixing current equalizing structure body have carried out technological improvement, make cigarette in tower body
Gas, ammonia, pyrolysis gas are more evenly distributed, and mixing more fully, further improves fume treatment efficiency.
In order to achieve the above object, the utility model employs the following technical solutions realization：
The makeup of low-temperature flue gas desulfurization and dedusting in compact high efficient, denitration and thermal decomposition integrated is put, including being integrated in from the bottom to top
Desulfurization dust clean-up stage, pyrolysis spray ammonia mixing section and denitration reaction section in one tower body, the desulfurization dust clean-up stage is by ash
Storehouse, smoke inlet, airflow uniform distribution flow-guiding structure body, filter bag and pulse spraying equipment composition；Pyrolysis spray ammonia mixing section is tied by ammonia is sprayed
Structure body, pyrolysis gas conveying injection structure body and mixing current equalizing structure body composition；Denitration reaction section is by denitrating catalyst and purification
Exhanst gas outlet is constituted；The desulfurization dust clean-up stage is arranged side by side for 2 groups, shares a pyrolysis spray ammonia mixing section and denitration reaction
Section；The airflow uniform distribution flow-guiding structure body is by the entrance guiding plate being arranged between smoke inlet and filter bag and is arranged on filter bag
Uniform baffle composition in the ash silo of lower section；The spray ammonia structure is by ammonia surge chamber, flange connections and spray ammonia arm group
Into；The pyrolysis gas conveying injection structure body is made up of pyrolysis gas surge chamber, Flow-rate adjustment short tube and pyrolysis gas arm；
The mixing current equalizing structure body is by the equal fluid layer of the orifice plate being arranged on perpendicular to airflow direction in tower body and the equal fluid layer group of foam metal
Into.
The pyrolysis spray ammonia mixing section and denitration reaction section are arranged on wherein 1 group top of 2 groups of desulfurization dust clean-up stages, separately
Outer 1 group of desulfurization dust clean-up stage top is coupled logical；The L-shaped arrangement of overall structure.
The desulfurization dust clean-up stage includes the straight section tower body on top and the ash silo of bottom；2 groups of desulfurization dust clean-up stages
Straight section tower body bottom sets respectively smoke inlet, and 2 smoke inlets are oppositely arranged.
In the straight section tower body of the desulfurization dust clean-up stage, filter bag is vertically embedding to be hung in card hole, uniform in multiple rows of, row,
Filter bag top sets pulse spraying equipment；The entrance guiding plate be arranged in parallel with filter bag, between entrance guiding plate and smoke inlet
Gas channel upper/lower terminal be respectively communicated with straight section tower body and ash silo；Uniform baffle is made up of one to multiple piece of uniform deflector,
Uniform deflector is obliquely installed, and it is 0~45 ° with the angle of vertical direction, and is inclined downwards away from smoke inlet one end；Enter
Mouth deflector, uniform baffle are respectively along the elongated setting of the respective side of straight section tower body or ash silo of desulfurization dust clean-up stage.
By multiple reinforcement link of boards between the uniform deflector and the bulkhead of ash silo, uniform deflector be straight panel or
Bent plate；Uniform deflector for it is multiple when, be along inclined direction stepped arrangement, between each uniform deflector, uniform deflector and
Connected by connecting plate between grey silo wall, form the stereoeffect with enclosed, outer surface.
The ammonia surge chamber of the spray ammonia structure is used for the temporary buffer of ammonia, and realizes malleation, negative pressure spray ammonia；Flange
Connecting tube is used to connect ammonia surge chamber and spray ammonia arm, is also that spray ammonia structure is arranged in pyrolysis spray ammonia mixing section tower body
Support member；Spray ammonia arm is uniformly arranged in juxtaposition for multiple, spray ammonia hole or ammonia nozzle is which is provided with, for spraying ammonia.
The pyrolysis gas surge chamber is used to that external heat source to be introduced the buffering before pyrolysis gas arm；Flow-rate adjustment is short
Manage for connecting pyrolysis gas surge chamber and pyrolysis gas arm, and control the pressure and flow of pyrolysis gas；Pyrolysis gas
Manage and be connected with Flow-rate adjustment short tube for square-section gradient tube, and its heavy in section one end；Pyrolysis gas arm is provided with gas spray
Perforation, multiple pyrolysis gas arms are uniformly arranged in juxtaposition, respectively by corresponding Flow-rate adjustment short tube and pyrolysis gas surge chamber
Connection, on Flow-rate adjustment short tube flow regulator is set.
The ammonia surge chamber is arranged along the orientation of spray ammonia arm, and is hung down by flange connections and each spray ammonia arm
It is direct-connected logical；Ammonia surge chamber is 1~2, when ammonia surge chamber is 2, is arranged in the both sides of spray ammonia arm；The pyrolysis
Gas buffer room is arranged along the orientation of pyrolysis gas arm, and vertical with each pyrolysis gas arm by Flow-rate adjustment short tube
Connection；Pyrolysis gas surge chamber is 1~2, when pyrolysis gas surge chamber is 2, is arranged in the two of pyrolysis gas arm
Side.
The equal fluid layer of the orifice plate is made up of the equal fluid layer still of orifice plate and the equal fluid layer moving plate of orifice plate；The equal fluid layer still of orifice plate and hole
The equal fluid layer moving plate of plate is disposed adjacent, and opens up in correspondence position on the equal fluid layer still of orifice plate and the equal fluid layer moving plate of orifice plate and multiple flows
Hole, the equal fluid layer moving plate of orifice plate can transversely and longitudinal short distance is slided, and can change after sliding its with the equal fluid layer still of orifice plate on
The registration of the equal discharge orifice of correspondence.
The equal fluid layer of the foam metal is arranged on any side of the equal fluid layer of orifice plate, between it is provided between the equal fluid layer of orifice plate
Every the equal fluid layer of foam metal is made up of foam metal, is flat board or folding slab structure；The equal fluid layer moving plate of orifice plate and the equal fluid layer of orifice plate
The percent opening of equal discharge orifice is 20~60% on still, the equal discharge orifice of diverse location on the equal fluid layer moving plate of orifice plate or the equal fluid layer still of orifice plate
Percent opening can with difference, but on the equal fluid layer moving plate of orifice plate and the equal fluid layer still of orifice plate the equal discharge orifice of correspondence position percent opening phase
Together；Discharge orifice is shaped as square, circular, oval or triangle, on the equal fluid layer moving plate of orifice plate or the equal fluid layer still of orifice plate not
Can be with difference with the equal discharge orifice shape at position, but the equal discharge orifice shape of corresponding position is identical.
Compared with prior art, the beneficial effects of the utility model are：
1) flue gas desulfurization and dedusting, denitration, the pyrolysis regeneration integration of denitrating catalyst scene are realized, saving is once invested；
2) using L-shaped cramped construction, floor space is greatly reduced, and saves a large amount of steel structure materials, mitigates weight of equipment, bright
It is aobvious to reduce cost of equipment and civil engineering costs；
3) 2 desulfurization dust clean-up stages share 1 pyrolysis spray ammonia mixing section and denitration reaction section, simplify top tower body knot
Structure, reduces equipment consumptive material and loading；
4) first dedusting before denitration, exempts abrasion of the dust to catalyst, effectively extends catalyst life；
5) under the pressure effect of sock filtration layer and mixing current equalizing structure body, flue gas is uniform on cross section in tower body,
Make velocity field, thermo parameters method evenly, further improve denitration efficiency；
6) spray ammonia structure can malleation spray ammonia also can negative-pressure ward ammonia, be provided with ammonia surge chamber, pyrolysis gas are defeated
Injection structure body is sent also to be provided with pyrolysis gas surge chamber, it is ensured that uniform in ammonia or pyrolysis gas injection, at utmost
Reduce system pressure and temperature fluctuation, it is ensured that system stability, effectively operation；
7) using spray ammonia structure and pyrolysis gas conveying injection structure body can make ammonia and flue gas, high temperature pyrolysis gas with
The contact of flue gas is more abundant, and mixing is evenly；
8) regeneration denitrating catalyst can be online pyrolyzed, affect process system normal work；Decomposed using high-temperature flue gas and urged
The emplastic on agent surface, catalytic efficiency and service life are further improved in cleaning catalyst surface；
9) can simplify or omit the denitrating catalyst soot cleaning system in traditional handicraft.
10) flue gas passes through sulfur dioxide and filter bag outer surface unreacted desulfurizing agent secondary response during filter bag, further carries
The desulfuration efficiency of high flue gas.
Description of the drawings
Fig. 1 is that the makeup of low-temperature flue gas desulfurization and dedusting in compact high efficient described in the utility model, denitration and thermal decomposition integrated is put
Front view.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the front view of airflow uniform distribution flow-guiding structure body described in the utility model.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is the schematic diagram one of spray ammonia structure described in the utility model.(1 ammonia surge chamber is set)
Fig. 6 is the schematic diagram two of spray ammonia structure described in the utility model.(2 ammonia surge chambers are set)
Fig. 7 is the schematic diagram one that pyrolysis gas described in the utility model convey injection structure body.(1 pyrolysis gas is set
Surge chamber)
Fig. 8 is the schematic diagram two that pyrolysis gas described in the utility model convey injection structure body.(2 pyrolysis gas are set
Surge chamber)
Fig. 9 is the front view of mixing current equalizing structure body described in the utility model.
Figure 10 is the side view of Fig. 9.
In figure：1. the entrance of 101. 102. closed unloading valve of ash silo, 103. smoke inlet of desulfurization dust clean-up stage 104. is led
107. pulse spraying equipment of stream uniform 106. filter bag of baffle of plate 105. 2. is pyrolyzed spray ammonia mixing section 210. and sprays ammonia structure
The pyrolysis gas conveying injection structure body 221. of the spray ammonia of 211. ammonia surge chamber, 212. flange connections 213. arm 220. is warm
223. pyrolysis gas arm of solution gas 222. Flow-rate adjustment short tube of surge chamber 230. mixes the foam gold of current equalizing structure body 231.
Belong to the equal denitrating catalyst of 3. denitration reaction section of fluid layer still 301. of the equal orifice plate of fluid layer moving plate 233. of the orifice plate of equal fluid layer 232.
302. purifying smokes are exported
Specific embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in Figure 1 and Figure 2, low-temperature flue gas desulfurization and dedusting, denitration and pyrolysis one in compact high efficient described in the utility model
Body makeup is put, including the desulfurization dust clean-up stage 1, pyrolysis spray ammonia mixing section 2 and denitration that are integrated in from the bottom to top in a tower body
Conversion zone 3, the desulfurization dust clean-up stage 1 is by ash silo 101, smoke inlet 103, airflow uniform distribution flow-guiding structure body, the and of filter bag 106
Pulse spraying equipment 107 is constituted；Pyrolysis spray ammonia mixing section 2 is by spray ammonia structure 210, pyrolysis gas conveying injection structure body 220
Constitute with mixing current equalizing structure body 230；Denitration reaction section 3 is made up of denitrating catalyst 301 and purifying smoke outlet 302；It is described
Desulfurization dust clean-up stage 1 is arranged side by side for 2 groups, shares a pyrolysis spray ammonia mixing section 2 and denitration reaction section 3；The air-flow is equal
Cloth flow-guiding structure body is by the entrance guiding plate 104 being arranged between smoke inlet 103 and filter bag 106 and is arranged on filter bag 106
Uniform baffle 105 in the ash silo 101 of lower section is constituted；The spray ammonia structure 210 is by ammonia surge chamber 211, flange connections
212 constitute with spray ammonia arm 213；The pyrolysis gas conveying injection structure body 220 is adjusted by pyrolysis gas surge chamber 221, flow
Section short tube 222 and pyrolysis gas arm 223 are constituted；The mixing current equalizing structure body 230 is arranged on tower by perpendicular to airflow direction
The equal fluid layer of internal orifice plate and the equal fluid layer 231 of foam metal are constituted.
The pyrolysis spray ammonia mixing section 2 and denitration reaction section 3 are arranged on wherein 1 group top of 2 groups of desulfurization dust clean-up stages 1
Portion, in addition 1 group of top of desulfurization dust clean-up stage 1 is coupled logical；The L-shaped arrangement of overall structure.
The desulfurization dust clean-up stage 1 includes the straight section tower body on top and the ash silo 101 of bottom；2 groups of desulfurization dust purifications
The straight section tower body bottom of section 1 sets respectively smoke inlet 103, and 2 smoke inlets 103 are oppositely arranged.
As shown in Figure 3, Figure 4, in the straight section tower body of the desulfurization dust clean-up stage 1, filter bag 106 is vertically embedding to be hung on card hole
Interior, uniform in multiple rows of, row, the top of filter bag 106 sets pulse spraying equipment 107；The entrance guiding plate 104 is parallel with filter bag 106
Arrange, the gas channel upper/lower terminal between entrance guiding plate 104 and smoke inlet 103 is respectively communicated with straight section tower body and ash silo
101；Uniform baffle 105 is made up of one to multiple piece of uniform deflector, and uniform deflector is obliquely installed, its folder with vertical direction
Angle is 0~45 °, and is inclined downwards away from the one end of smoke inlet 103；Entrance guiding plate 104, uniform baffle 105 edge respectively
The elongated setting of the respective side of straight section tower body or ash silo 101 of desulfurization dust clean-up stage 1.
By multiple reinforcement link of boards between the uniform deflector and the bulkhead of ash silo 101, uniform deflector is straight
Plate or bent plate；Uniform deflector for it is multiple when, be along inclined direction stepped arrangement, between each uniform deflector, uniform water conservancy diversion
Connected by connecting plate between plate and the bulkhead of ash silo 101, form the stereoeffect with enclosed, outer surface.
As shown in Figure 5, Figure 6, the ammonia surge chamber 211 of the spray ammonia structure 210 is used for the temporary buffer of ammonia, and in fact
Existing malleation, negative pressure spray ammonia；Flange connections 212 are used to connect ammonia surge chamber 211 and spray ammonia arm 213, are also spray ammonia structure
Body 210 is arranged on the support member in the tower body of pyrolysis spray ammonia mixing section 2；Spray ammonia arm 213 is uniformly arranged in juxtaposition for multiple, thereon
Spray ammonia hole or ammonia nozzle are provided with, for spraying ammonia.
As shown in Figure 7, Figure 8, the pyrolysis gas surge chamber 221 is used to for external heat source to introduce pyrolysis gas arm 223
Buffering before；Flow-rate adjustment short tube 222 is used to connect pyrolysis gas surge chamber 221 and pyrolysis gas arm 223, and controls heat
The pressure and flow of solution gas；Pyrolysis gas arm 223 is square-section gradient tube, and its heavy in section one end is short with Flow-rate adjustment
Pipe 222 connects；Pyrolysis gas arm 223 is provided with gas jetting hole, and multiple pyrolysis gas arms 223 are uniformly arranged in juxtaposition, point
Do not connected with pyrolysis gas surge chamber 221 by corresponding Flow-rate adjustment short tube 222, flow tune is set on Flow-rate adjustment short tube 222
Regulating device.Flow regulator can be screw rod or valve.
The ammonia surge chamber 211 is arranged along the orientation of spray ammonia arm 213, and by flange connections 212 and each
The vertical connection of spray ammonia arm 213；Ammonia surge chamber 211 is 1~2, when ammonia surge chamber 211 is 2, is arranged in spray ammonia
The both sides of arm 213；The pyrolysis gas surge chamber 221 is arranged along the orientation of pyrolysis gas arm 223, and is adjusted by flow
Section short tube 222 and each vertical connection of pyrolysis gas arm 223；Pyrolysis gas surge chamber 221 is 1~2, pyrolysis gas buffering
When room 221 is 2, the both sides of pyrolysis gas arm 223 are arranged in.
As shown in Figure 9, Figure 10, the equal fluid layer of the orifice plate is by 232 groups of the equal fluid layer still 233 of orifice plate and the equal fluid layer moving plate of orifice plate
Into；The equal fluid layer still 233 of orifice plate is disposed adjacent with the equal fluid layer moving plate 232 of orifice plate, the equal fluid layer still 233 of orifice plate and the equal fluid layer of orifice plate
Open up multiple equal discharge orifices in correspondence position on moving plate 232, the equal fluid layer moving plate 232 of orifice plate can transversely and longitudinal short distance is slided,
And can change its registration with corresponding equal discharge orifice on the equal fluid layer still 233 of orifice plate after sliding.
The equal fluid layer 231 of the foam metal is arranged on any side of the equal fluid layer of orifice plate, and it sets between the equal fluid layer of orifice plate
There is interval, the equal fluid layer 2311 of foam metal is made up of foam metal, be flat board or folding slab structure；The equal fluid layer moving plate 232 of orifice plate
And the percent opening of equal discharge orifice is 20~60% on the equal fluid layer still 233 of orifice plate, the equal fluid layer moving plate 232 of orifice plate or the equal fluid layer of orifice plate are quiet
The percent opening of the equal discharge orifice of diverse location can be with difference on piece 233, but the equal fluid layer moving plate 232 of orifice plate and the equal fluid layer still 233 of orifice plate
The percent opening of the equal discharge orifice of upper correspondence position is identical；Discharge orifice is shaped as square, circular, oval or triangle, and orifice plate flows
The equal discharge orifice shape of various location can be with difference on layer moving plate 232 or the equal fluid layer still 233 of orifice plate, but corresponding position is equal
Discharge orifice shape is identical.
2~4 layers of setting of the denitrating catalyst 301 point, purifying smoke outlet 302 is located at tower body top.
The bottom ash silo 101 of desulfurization dust clean-up stage 1 sets closed unloading valve 102, and closed unloading valve 102 is located at ash silo 101 and goes out
At material mouth.Ash silo 101 is used to collecting and storing the particulate matter separated from flue gas, an effect of closed unloading valve 102
It is to prevent from extraneous air from penetrating into device inside by discharging opening to reduce flue-gas temperature, another effect is that discharge ash silo 101 is collected
Dust granules thing.
Uniform baffle 105 can carry out crude separation to contained coarse granule coal dust in dust and gas, while leading to ash-laden gas
Stream, makes the air flow method on the surface of filter bag 106 uniform, it is to avoid dusty gas directly washes away the surface of filter bag 106, affects filter bag 106 to make
With efficiency and service life.Pulse spraying equipment 107 is located in the top Jing Qi regions of filter bag 106, for carrying out arteries and veins to filter bag 106
Rush reverse gas cleaning.
Uniform deflector is obliquely installed, and is in 0~45° angle with vertical direction；Uniform deflector in uniform baffle 105 can
Being one piece, it is also possible to combined by polylith and formed, the angle of each piece of uniform deflector can be with identical when polylith is combined, it is also possible to no
Together, but it is noted that it is engaged with the planform of desulfurization dust clean-up stage 1.The shape of uniform deflector can be straight panel, also may be used
To be arranged to bent plate.
Ammonia surge chamber 211 is cylinder or rectangular structure；Ammonia surge chamber 211 connects in addition ammonia source of the gas end, uses
In the temporary buffer of ammonia, its size, for ammonia flow is most important with pressure, is to realize that malleation, negative pressure are uniformly sprayed with profile
The critical component of ammonia.When system is malleation, ammonia source of the gas end pressure is big compared with the pressure of ammonia surge chamber 211, and ammonia is actively passed through
Ammonia surge chamber, by flange connections 212 spray ammonia arm 213 is entered, and is ejected by spraying ammonia hole or ammonia nozzle；Work as system
For negative pressure when, the pressure of ammonia surge chamber 211 is big compared with ammonia source of the gas end pressure, and injection power is by spraying ammonia hole or ammonia nozzle is produced
It is raw, attract to pull ammonia and flow through ammonia surge chamber 211, flange connections 212 successively and enter to spray ammonia arm 213.Negative pressure run and
Streamline of the pressure ammonia in system is different during operation under positive pressure.
The pyrolysis gas surge chamber 221 is cylinder or rectangular structure；Pyrolysis gas surge chamber 221 is used for outside
Thermal source introduces advanced row buffering before pyrolysis gas arm 223, prevents pyrolysis gas from causing system pressure to fluctuate when being directly entered,
Avoid flow regulator frequent movement.After pyrolysis gas spray from gas jetting hole, by the sky between pyrolysis gas arm 223
Gap carries out pyrolysis regeneration in tower body to denitrating catalyst 301, and its gas injection distributing homogeneity is good, denitrating catalyst
301 favorable regeneration effects.
The mixing current equalizing structure body 230 adopts the equal fluid layer 231 of foam metal, is advantageously implemented a large amount of cigarettes in big bin inside
The stream of gas；The equal fluid layer moving plate 232 of orifice plate is embedded in the two way slide lane of tower body, and tower body outside arranges screw mechanism, by spiral shell
The equal fluid layer moving plate 232 of lever attachment hole plate, to realize that horizontal, longitudinal short distance is slided.The equal fluid layer moving plate 232, orifice plate of orifice plate is equal
Fluid layer still 233 coordinates, and by adjusting the exhaust gas volumn that the registration regulation of equal discharge orifice passes through section, realizes many bins of big exhaust gas volumn
Between air-flow flow, pressure balance.
The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not
Be confined to this, any those familiar with the art in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design in addition equivalent or change, all should cover in protection model of the present utility model
Within enclosing.
Claims (10)
1. low-temperature flue gas desulfurization and dedusting in compact high efficient, denitration and thermal decomposition integrated makeup is put, including being integrated in one from the bottom to top
Desulfurization dust clean-up stage in individual tower body, pyrolysis spray ammonia mixing section and denitration reaction section, the desulfurization dust clean-up stage by ash silo,
Smoke inlet, airflow uniform distribution flow-guiding structure body, filter bag and pulse spraying equipment composition；Pyrolysis spray ammonia mixing section is by spraying ammonia structure
Body, pyrolysis gas conveying injection structure body and mixing current equalizing structure body composition；Denitration reaction section is by denitrating catalyst and smoke-purifying
Gas outlet composition；Characterized in that, the desulfurization dust clean-up stage is arranged side by side for 2 groups, a pyrolysis spray ammonia mixing section is shared
With denitration reaction section；The airflow uniform distribution flow-guiding structure body by the entrance guiding plate being arranged between smoke inlet and filter bag and
The uniform baffle composition being arranged in the ash silo of filter bag lower section；It is described spray ammonia structure by ammonia surge chamber, flange connections and
Spray ammonia arm composition；The pyrolysis gas convey injection structure body by pyrolysis gas surge chamber, Flow-rate adjustment short tube and pyrolysis gas
Body arm is constituted；The mixing current equalizing structure body is by the equal fluid layer of the orifice plate being arranged on perpendicular to airflow direction in tower body and foam gold
Belong to equal fluid layer composition.
2. the makeup of low-temperature flue gas desulfurization and dedusting, denitration and thermal decomposition integrated is put in compact high efficient according to claim 1, its
It is characterised by, the pyrolysis spray ammonia mixing section and denitration reaction section are arranged at the top of wherein 1 group of 2 groups of desulfurization dust clean-up stages,
Other 1 group of desulfurization dust clean-up stage top is coupled logical；The L-shaped arrangement of overall structure.
3. the makeup of low-temperature flue gas desulfurization and dedusting, denitration and thermal decomposition integrated is put in compact high efficient according to claim 1, its
It is characterised by, the desulfurization dust clean-up stage includes the straight section tower body on top and the ash silo of bottom；2 groups of desulfurization dust clean-up stages
Straight section tower body bottom sets respectively smoke inlet, and 2 smoke inlets are oppositely arranged.
4. the makeup of low-temperature flue gas desulfurization and dedusting, denitration and thermal decomposition integrated is put in compact high efficient according to claim 1, its
It is characterised by, in the straight section tower body of the desulfurization dust clean-up stage, filter bag is vertically embedding to be hung in card hole, uniform in multiple rows of, row,
Filter bag top sets pulse spraying equipment；The entrance guiding plate be arranged in parallel with filter bag, between entrance guiding plate and smoke inlet
Gas channel upper/lower terminal be respectively communicated with straight section tower body and ash silo；Uniform baffle is made up of one to multiple piece of uniform deflector,
Uniform deflector is obliquely installed, and it is 0~45 ° with the angle of vertical direction, and is inclined downwards away from smoke inlet one end；Enter
Mouth deflector, uniform baffle are respectively along the elongated setting of the respective side of straight section tower body or ash silo of desulfurization dust clean-up stage.
5. the makeup of low-temperature flue gas desulfurization and dedusting, denitration and thermal decomposition integrated is put in compact high efficient according to claim 4, its
It is characterised by, by multiple reinforcement link of boards between the uniform deflector and the bulkhead of ash silo, uniform deflector is straight panel
Or bent plate；Uniform deflector for it is multiple when, be along inclined direction stepped arrangement, between each uniform deflector, uniform deflector
It is connected by connecting plate between grey silo wall, forms the stereoeffect with enclosed, outer surface.
6. the makeup of low-temperature flue gas desulfurization and dedusting, denitration and thermal decomposition integrated is put in compact high efficient according to claim 1, its
It is characterised by, the ammonia surge chamber of the spray ammonia structure is used for the temporary buffer of ammonia, and realizes malleation, negative pressure spray ammonia；Method
Blue connecting tube is used to connect ammonia surge chamber and spray ammonia arm, is also that spray ammonia structure is arranged in pyrolysis spray ammonia mixing section tower body
Support member；Spray ammonia arm is uniformly arranged in juxtaposition for multiple, spray ammonia hole or ammonia nozzle is which is provided with, for spraying ammonia.
7. the makeup of low-temperature flue gas desulfurization and dedusting, denitration and thermal decomposition integrated is put in compact high efficient according to claim 1, its
It is characterised by, the pyrolysis gas surge chamber is used to that external heat source to be introduced the buffering before pyrolysis gas arm；Flow-rate adjustment
Short tube is used to connect pyrolysis gas surge chamber and pyrolysis gas arm, and controls the pressure and flow of pyrolysis gas；Pyrolysis gas
Arm is square-section gradient tube, and its heavy in section one end is connected with Flow-rate adjustment short tube；Pyrolysis gas arm is provided with gas
Spray-hole, multiple pyrolysis gas arms are uniformly arranged in juxtaposition, and are buffered by corresponding Flow-rate adjustment short tube and pyrolysis gas respectively
Room connects, and on Flow-rate adjustment short tube flow regulator is set.
8. low-temperature flue gas desulfurization and dedusting, denitration and thermal decomposition integrated makeup in the compact high efficient according to claim 6 or 7
Put, it is characterised in that the ammonia surge chamber is arranged along the orientation of spray ammonia arm, and by flange connections and each spray ammonia
Arm vertical connection；Ammonia surge chamber is 1~2, when ammonia surge chamber is 2, is arranged in the both sides of spray ammonia arm；Institute
State pyrolysis gas surge chamber to arrange along the orientation of pyrolysis gas arm, and by Flow-rate adjustment short tube and each pyrolysis gas
Pipe vertical connection；Pyrolysis gas surge chamber is 1~2, when pyrolysis gas surge chamber is 2, is arranged in pyrolysis gas
The both sides of pipe.
9. the makeup of low-temperature flue gas desulfurization and dedusting, denitration and thermal decomposition integrated is put in compact high efficient according to claim 1, its
It is characterised by, the equal fluid layer of the orifice plate is made up of the equal fluid layer still of orifice plate and the equal fluid layer moving plate of orifice plate；The equal fluid layer still of orifice plate with
The equal fluid layer moving plate of orifice plate is disposed adjacent, and opens up in correspondence position on the equal fluid layer still of orifice plate and the equal fluid layer moving plate of orifice plate and multiple flows
Hole, the equal fluid layer moving plate of orifice plate can transversely and longitudinal short distance is slided, and can change after sliding its with the equal fluid layer still of orifice plate on
The registration of the equal discharge orifice of correspondence.
10. the makeup of low-temperature flue gas desulfurization and dedusting, denitration and thermal decomposition integrated is put in compact high efficient according to claim 1,
Characterized in that, the equal fluid layer of the foam metal is arranged on any side of the equal fluid layer of orifice plate, it sets between the equal fluid layer of orifice plate
There is interval, the equal fluid layer of foam metal is made up of foam metal, be flat board or folding slab structure；The equal fluid layer moving plate of orifice plate and orifice plate are equal
The percent opening of equal discharge orifice is 20~60% on fluid layer still, and diverse location is equal on the equal fluid layer moving plate of orifice plate or the equal fluid layer still of orifice plate
The percent opening of discharge orifice can with difference, but on the equal fluid layer moving plate of orifice plate and the equal fluid layer still of orifice plate the equal discharge orifice of correspondence position percent opening
It is identical；Discharge orifice is shaped as square, circular, oval or triangle, on the equal fluid layer moving plate of orifice plate or the equal fluid layer still of orifice plate
The equal discharge orifice shape of various location can be with difference, but the equal discharge orifice shape of corresponding position is identical.
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| CN201621137133.4U CN206168115U (en) | 2016-10-19 | 2016-10-19 | Low temperature flue gas desulfurization and dust removal , denitration and pyrolysis integrated device in compact high efficiency |
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| CN201621137133.4U CN206168115U (en) | 2016-10-19 | 2016-10-19 | Low temperature flue gas desulfurization and dust removal , denitration and pyrolysis integrated device in compact high efficiency |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106391141A (en) * | 2016-11-04 | 2017-02-15 | 中冶焦耐(大连)工程技术有限公司 | Pyrolysis gas conveying and spraying structure |
| CN106422569A (en) * | 2016-10-19 | 2017-02-22 | 中冶焦耐(大连)工程技术有限公司 | Compact type high-efficiency medium-low-temperature flue gas desulfurization, dust removal, denitration and pyrolyzation integrated device |
-
2016
- 2016-10-19 CN CN201621137133.4U patent/CN206168115U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422569A (en) * | 2016-10-19 | 2017-02-22 | 中冶焦耐(大连)工程技术有限公司 | Compact type high-efficiency medium-low-temperature flue gas desulfurization, dust removal, denitration and pyrolyzation integrated device |
| CN106391141A (en) * | 2016-11-04 | 2017-02-15 | 中冶焦耐(大连)工程技术有限公司 | Pyrolysis gas conveying and spraying structure |
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