CN109942065A - A kind of reduction fluidized bed and application thereof and application method - Google Patents
A kind of reduction fluidized bed and application thereof and application method Download PDFInfo
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- CN109942065A CN109942065A CN201711394357.2A CN201711394357A CN109942065A CN 109942065 A CN109942065 A CN 109942065A CN 201711394357 A CN201711394357 A CN 201711394357A CN 109942065 A CN109942065 A CN 109942065A
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- fluosolids
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- 230000009467 reduction Effects 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000007787 solid Substances 0.000 claims abstract description 44
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000009826 distribution Methods 0.000 claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 238000005243 fluidization Methods 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 238000006722 reduction reaction Methods 0.000 description 20
- 238000007210 heterogeneous catalysis Methods 0.000 description 17
- 239000007789 gas Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 3
- 239000012028 Fenton's reagent Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000007086 side reaction Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
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- 230000004907 flux Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 238000007172 homogeneous catalysis Methods 0.000 description 1
- -1 hydroxyl radical free radical Chemical class 0.000 description 1
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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- 238000006116 polymerization reaction Methods 0.000 description 1
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- 239000010802 sludge Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 230000008674 spewing Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention discloses a kind of reduction fluidized bed and application thereof and application methods.The reduction fluidized bed includes sequentially connected from top to bottom: clear layer, guide layer and fluosolids；Clear layer from top to bottom includes sequentially connected liquid collection region, three phase separator and buffer area, and pair of lamina overflow weir is equipped on the inner wall of liquid collection region, and reducing agent feeder is arranged in the middle part of clear layer；Guide layer is provided with deflector, and the outer wall dimension of guide layer is gradually reduced from top to bottom；The bottom of fluosolids is equipped at least one injector vertically, around be equipped with several solids distribution plates；Water sucking mouth is offered on injector, one end of solids distribution plate is connected to the lower end of water sucking mouth, and the other end is connected with the wall surface of fluosolids or another adjacent injector.The case where mixing efficiency of reduction fluidized bed of the invention is high, and operation energy consumption is low, will not generate mechanical erosion, can reduce the abrasion of structure.
Description
Technical field
The present invention relates to technical field of sewage, and in particular to a kind of reduction fluidized bed and application thereof and application method.
Background technique
In sewage treatment field, Fenton oxidation technology is a kind of high-level oxidation technology applied to sewage treatment, due to
The features such as its equipment is simple, and oxidability is strong, and COD COD (Chemical Oxygen Demand) removal rate is high,
The pretreatment of industrial wastewater and advanced treating field have a wide range of applications.The mechanism of Fenton oxidation is Fe2+With H2O2Combination
As Fenton (Fenton) reagent, a large amount of hydroxyl radical free radical is on the one hand generated under acidic conditions, utilizes its strong oxidizing property
It is the organic matter of small molecule by the macromolecular organic pollutant degradation in waste water, can also be further oxidized to as CO2And H2O；Separately
One side Fenton reagent can produce Fe (OH)3Cotton-shaped colloid removes partial organic substances by flocculation and suction-operated.
But Fenton oxidation technology is there are maximum side effect, the iron cement amount generated with Fenton reagent amount increase
And increase on year-on-year basis, if iron cement does corresponding processing not to this part, a large amount of secondary pollution can be generated, at present at industry water
This part iron containing sludge of reason field is identified as hazardous waste mostly, and processing cost is very high compared to general waste, Er Qiecheng
This also has the tendency that being stepped up.
So having many technologies improved for Fenton process optimization, including but not limited to light Fenton on the market at present
Method, electro-fenton process, (such as patent document such as heterogeneous catalysis fixed bed process and heterogeneous catalysis fluidized bed process
CN105000654A、CN102701392A、CN103755092A、CN105461103A、CN202139138U、
CN205650179U,CN101088936A).The new iron cement reclaiming system of existing one kind, using by ferric iron present in iron cement
Dissolution then makes it be reduced to the Fe of Fenton reagent needs using reducing agent2+.Common reducing agent is non-during this
Homogeneous catalysis reducing agent.Its reaction principle is Fe3++ reducing agent → Fe2+.Production method of reduction reaction is to adopt during this
With reactor tank+stirring form.This method is the liquid-solid reaction mode of chemical industry and environment protection field routine.But due to heterogeneous catalysis
There is reducing agent certain hardness certain abrasion and corrosion can be generated to agitating paddle；Heterogeneous catalysis reducing agent has remote simultaneously
Higher than the density of water, it is difficult to stir reactant by the way of agitating paddle uniformly mixed；In addition, being needed using agitating paddle mode
Using powerful stirring motor, often needs to increase reaction duration in the case where reaction mixing rate is low and come so that having reacted
Entirely, this will increase operation energy consumption.This problems demand solves.
Summary of the invention
Technical problem to be solved by the present invention lies in overcome in the prior art since heterogeneous catalysis reducing agent has
Certain hardness can generate certain abrasion and burn into heterogeneous catalysis reducing agent to agitating paddle has the density for being much higher than water,
It is difficult to stir reactant by the way of agitating paddle and is uniformly mixed and needs to stir using powerful using agitating paddle mode
The defects of motor increases operation energy consumption is mixed, a kind of reduction fluidized bed and application thereof and application method are provided.The present invention will stir
Tank changes recirculating fluidized bed into, increases mixed effect, adjusts pump flow, realizes different-grain diameter size heterogeneous catalysis reducing agent
Most energy saving stable fluidized state, reduce operation energy consumption, by circulating pump make liquid generate turbulent motion, make hybrid agent
For solid reductant and solution, the case where mechanical erosion will not be generated, a possibility that reducing structural wear.
The present invention provides a kind of reduction fluidized beds, from top to bottom include sequentially connected: clear layer, guide layer and stream
Change layer；
Wherein, the clear layer from top to bottom includes sequentially connected liquid collection region, three phase separator and buffer area, institute
It states and is equipped with pair of lamina overflow weir on the inner wall of liquid collection region, be additionally provided in the middle part of the clear layer and collected through the liquid
The reducing agent feeder in area, the three phase separator and the buffer area, the top of the reducing agent feeder are higher than described double
Layer overflow weir, lower part are higher than the bottom of the buffer area；
Wherein, the guide layer is provided with deflector, for reducing the axial up-flow kinetic energy of liquid, the guide layer it is outer
Wall size is gradually reduced along the clear layer to the fluosolids；
Wherein, the bottom of the fluosolids is vertically arranged at least one injector, if being provided with around the injector
Dry can make powder tilt down the solids distribution plate fallen；Water sucking mouth, the solids distribution plate are offered on the injector
One end connect with the injector, link position is located at the lower end of the water sucking mouth, the other end of the solids distribution plate with
The wall surface of the fluosolids or another adjacent injector are connected.
In the present invention, the bilayer overflow weir is the double-deck overflow weir commonly used in the art, preferably, described double-deck excessive
Ring structure or rectangular configuration around tower body edge can be used in stream weir.
In the present invention, the reducing agent feeder is reducing agent feeder commonly used in the art, preferably, described go back
Former agent feeder contains weight detecting module, according to weight change feedback to variable-frequency motor, controls loading frequency.
In the present invention, the three phase separator is three phase separator commonly used in the art, is preferably fallen using bilayer
Three-legged structure collects gas by triangle top as known to those skilled in the art and can detect gas by gas volume detection module
The volume of body is periodically extracted out, and since this portion gas is the hydrogen that side reaction generates, purity is higher, can use gas reservoir
It collects；Preferably, the top of the three phase separator is equipped with outside exhaust pipe.
In the present invention, the deflector is deflector commonly used in the art, and the number of blade of the deflector is according to straight
The setting of diameter quantity, the preferred number of blade are 3~8 leaves, preferably use helical structure, the tilt angle of the blade of the deflector
(tilt angle herein is the angle with horizontal plane) can be 15 ° -75 °, preferably 30 ° -60 °；The deflector can position
In the inner wall of the guide layer, can also vacantly be fixed with connecting rod in rotary table；The setting of the deflector can increase liquid
The up-flow state that body eddy flow rises lowers the up-flow speed of liquid, while but also fluid increases lateral kinetic energy, control is detached from stream
Change the liquid axial flow velocity of layer, reduces spewing phenomenon.
In the present invention, the diameter up and down of the guide layer is than being preferably 1.5-3:1；Diameter increases the guide layer from the bottom to top
It can greatly to flow up speed reduction, solid becomes sinking state from critical flow conditions, maintains the flow regime of fluidized-bed layer
With the trend of separation of solid and liquid.
In the present invention, preferably, the bottom of the fluosolids is additionally provided with inlet distribution device, to realize water inlet in each spray
Emitter mean allocation.
In the present invention, distance >=5cm of guide layer bottom described in the distance from top of the injection pipe of the injector, preferably
For 10cm-20cm；Ratio of height to diameter >=2 of the injection pipe, preferably 3-8:1.
In the present invention, the fluosolids can arrange one or more injectors.When the injector is multiple, the injection
Device is equidistantly to be uniformly distributed, and the solids distribution plate is evenly distributed on around the injector.
In the present invention, the injector uses venturi principle, flows fast through the liquid of pipeline to water sucking mouth by axial
Certain suction function is generated, the solid near water sucking mouth is driven to enter in injection pipe, is driven and floats by water flow, reach fluidisation
State improves liquid-solid reaction efficiency.
In the present invention, the inclined angle of the solids distribution plate is preferably 15-75 °, restores to heterogeneous catalysis
Agent is accumulated in injector water sucking mouth periphery with flow action, while also because of such structure, improving solid circulation frequency, reduces
There is a phenomenon where heterogeneous catalysis reducing agent is hardened.The number of the solids distribution plate can be according to the flow and tower of practical tower body
The diameter of body needs to be arranged, but needs corresponding with the number of the injector.
In the present invention, the Up-Center-Down Structure height ratio of the reduction fluidized bed can be adjusted according to actual needs,
Such as the height ratio of the clear layer, the guide layer and the fluosolids can be (0.7-1.3): (0.7-1.3): (1.4-
2.6), preferably 1:1:2.
In the present invention, according to this field routine, the outside of the reduction fluidized bed is additionally provided with water circulating pump and recirculated water
Tank.
Wherein, the circulation water pot connect by pipeline with the double-deck overflow weir, the circulation water pot pass through pipeline and
The water circulating pump connection.
Wherein, the circulation water pot is used to collect the liquid of fluidized bed overflow weir outflow, later can be with metering pump by liquid
It is pumped into corresponding pipeline.
Wherein, preferably, the water circulating pump is pumped using chemical anticorrosion, the export pipeline of the water circulating pump has outlet valve
Door can control entering tower flow rate；The inlet ductwork of the water circulating pump connects the circulation water pot, controls flow with inlet valve；
The water circulating pump is connect by threeway with into tower tube road and evacuated tube；The evacuated tube contains exhaust-valve, is mainly used for periodically
Discharge cleaning.
In the present invention, flow of inlet water can be adjusted by adjusting the water inlet pipe valve, realize that solid is rapid in the injector
The state of fluidisation.
In the present invention, in general, the solids ratios 1%~20% in the reduction fluidized bed, and art technology
Personnel know that the diameter of the fluosolids and height can be adjusted according to solid-liquid ratio.
The present invention also provides a kind of application of reduction fluidized bed as described above in the recycling of Fenton iron mud.
The present invention also provides a kind of method of Fenton iron mud recycling being used cooperatively with the reduction fluidized bed, packets
Include following step:
Reducing agent feeder is added in reducing agent, Fenton iron mud enters after fluosolids to be sprayed upwards by injector, is passed through
Enter clear layer after deflector, the liquid circulation that the double-deck overflow weir is flowed out after separation of solid and liquid uses.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention
Example.
The positive effect of the present invention is that:
Reduction fluidized bed mixed effect of the invention improves, feeding quantity stability contorting, and fluidized-bed structure optimization, volume subtracts
Small, outer circulation amount can be adjusted according to flow quantity is carried out, and operation energy consumption is low, makes liquid generate turbulent motion by circulating pump, makes to mix
A possibility that the case where main body is closed as solid reductant and solution, mechanical erosion will not be generated, reduction structural wear.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the embodiment of the present invention 1 restores that injector is 1 in fluidized bed.
Fig. 2 is the schematic perspective view of 3 leaf deflectors in the embodiment of the present invention 1.
Fig. 3 is the cross-sectional view for the fluidization regions that the embodiment of the present invention 2 restores when injector is multiple in fluidized bed.
Fig. 4 is the structural schematic diagram for the fluidization regions that the embodiment of the present invention 2 restores when injector is multiple in fluidized bed.
Fig. 5 is the schematic perspective view of 6 leaf deflectors in the embodiment of the present invention 2.
Fig. 6 is the top view of 6 leaf deflectors in the embodiment of the present invention 2.
Fig. 7 is the top view of 3 leaf deflectors in the embodiment of the present invention 3.
Appended drawing reference is as follows:
Clear layer 1
Liquid collection region 11
Three phase separator 12
Buffer area 13
The double-deck overflow weir 14
Reducing agent feeder 15
Exhaust pipe 16
Guide layer 2
Fluosolids 3
Injector 31
Solids distribution plate 32
Water sucking mouth 33
Solid collecting region 34
Inlet distribution device 35
Water circulating pump 4
Recycle water pot 5
Pump flow valve 41
Exhaust-valve 42
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
Embodiment 1
The present embodiment restores fluidized-bed structure as shown in Figure 1, reducing agent is using heterogeneous catalysis reducing agent (such as aluminium powder
Deng), it is added in reducing agent feeder 15, heterogeneous catalysis reducing agent partial size is sent out in fluidized bed in the range of 0.15-10mm
Raw main reaction is Fe3++ reducing agent → Fe2+, main side reaction is reducing agent+H+→H2.Fluidized bed is added in unit time
The ratio of heterogeneous catalysis reducing agent and liquid is 5:95.
Fluidized bed includes from top to bottom including sequentially connected: clear layer 1, guide layer 2 and fluosolids 3, clear layer 1 are led
The height of fluid layer 2 and fluosolids 3 ratio is 1:1:2；Wherein, clear layer 1 from top to bottom include sequentially connected liquid collection region 11,
Three phase separator 12 and buffer area 13 are equipped with pair of lamina overflow weir 14 on the inner wall of liquid collection region, and the middle part of clear layer 2 is also
Equipped with run through liquid collection region 11, three phase separator 12 and buffer area 13 reducing agent feeder 15, reducing agent feeder 15
Top is higher than the double-deck overflow weir 12, and lower part is higher than the bottom of buffer area 13；The top of three phase separator 12 is equipped with outside exhaust
Pipe 16；
Wherein, guide layer 2 is provided with 3 leaf deflectors (referring to fig. 2), which uses middle part fixed, for reducing
The axial up-flow kinetic energy of liquid, the outer wall dimension of guide layer 2 are gradually reduced along clear layer 1 to fluosolids 3, guide layer it is straight up and down
Diameter ratio is 1.5:1；
Wherein, the bottom of fluosolids 3 is vertically arranged with an injector 31, and being provided with several around injector 31 can make
Powder tilts down the solids distribution plate 32 fallen, forms solid collecting region 34；Water sucking mouth 33, solid are offered on injector 31
One end of distribution grid 32 is connect with injector 31, and link position and water sucking mouth 33 are horizontal, and can make solid is not in accumulation dead angle,
The other end of solids distribution plate 32 and the wall surface of fluosolids 3.
Top weir designs for ring structure, and cleaning can be inspected periodically in first layer effluent weir, guarantees that the second layer goes out
The water outlet of mill weir is clarified completely, and later period impurity is avoided to enter in circulating pump the normal operation for influencing pump.Reducing agent feeder 15 is adopted
With continuous charging at regular time and quantity, feeder contains weight detecting module, is fed back weight change signal to variable-frequency electric by PLC
Machine.Variable-frequency motor connects material driven rod, controls loading frequency by the change of motor speed, realizes steady and continuous charging；Three
Phase separator 12 is collected gas by triangle top and is detected gas by gas volume detection module using the double-deck inverted triangle structure
The volume of body is periodically extracted out, and since this portion gas is the hydrogen that side reaction generates, purity is higher, can use gas reservoir
It collects.Since the method using the reduction of heterogeneous catalysis reducing agent is to realize that liquid is upward, solid sinks, and gas polymerization is taken out
Out；Deflector uses 3 leaf helical structures, and setting deflector tilt angle is 15 ° to realize that will rise kinetic energy switchs to lateral kinetic energy；
Several are planar arranged using equidistant mode in injector 31, design solids distribution plate 32 to realize entire cross section solid all
Collection can be uniformly distributed around each injector 31, tilt angle is 45 °.The distance from top of the injection pipe of injector 31
The distance of 3 bottom of guide layer is 10cm；The ratio of height to diameter of injection pipe is 3:1.
The outside of reduction fluidized bed is additionally provided with water circulating pump 4, recycles water pot 5.Wherein, circulation water pot 5 by pipeline with
The double-deck overflow weir 14 connects, and circulation water pot 5 is connect by pipeline with water circulating pump 4.Wherein, circulation water pot 5 is for collecting fluidisation
The liquid of bed overflow weir outflow, can be pumped into corresponding pipeline for liquid with metering pump later.Wherein, water circulating pump 4 uses chemical industry
Corrosion protection pump, the export pipeline of water circulating pump 4 have pump flow valve 41, can control entering tower flow rate；The inlet ductwork of water circulating pump 4
Connection circulation water pot 5, controls flow with inlet valve；Water circulating pump 4 is connect by threeway with into tower tube road and evacuated tube, is emptied
Pipe contains exhaust-valve 42, is mainly used for periodically discharging cleaning.
The liquid that the overflow of fluidized bed upper layer goes out is stored in circulation water pot 5, is pumped into Fenton technique by metering pump,
Rest part solution is entered in fluidized bed water inlet pipe by loop branch pipe and water circulating pump 4.It adjusts into pump flow valve 41
To adjust flow of inlet water, realization solid state turbulent fluidised in the injection pipe of injector 31.Due to injection pipe cross-sectional area
Compare fluidized bed lower layer 3 cross-sectional area of fluosolids it is much smaller, 4, water circulating pump need lesser flux that can just make to spray
Jet flow state is presented in the heterogeneous catalysis reducing agent penetrated in pipe, and the operation energy consumption of pump is very than existing fluidization energy conservation
It is more.In the solid that injection pipe ejects since there are biggish up-flow kinetic energy, i.e. heterogeneous catalysis reducing agent can enter
Guide layer 2 converts lateral kinetic energy for part up-flow kinetic energy, heterogeneous catalysis reducing agent is allow to pass through self gravity and waterpower
It flows and generates downward kinetic energy, return in fluosolids 3, fall on solids distribution plate 32.Thereafter due to the water sucking mouth of injection pipe
33 suction function sucks 32 surrounding liquid of solids distribution plate in injection pipe, and heterogeneous catalysis reducing agent also carries entrance secretly
Next spraying cycle is formed in injection pipe.
In the present embodiment, the flow of water circulating pump is related with particle size by up-flow speed and density of solid particles.Due to
There is the phenomenon that constantly reducing with the carry out partial size of reaction in solid, therefore the up-flow speed of circular flow pump is calculated with fluosolids 3 directly
Diameter is that foundation is calculated, and calculation formula is as follows:
Wherein, the critical up-flow speed of V, Q pump discharge, R fluosolids radius.The critical up-flow speed of V is according to practical density of solid
It is related with grain diameter, it is acquired by pilot plant test.
Embodiment 2
The ratio of diameter up and down of the guide layer of the reduction fluidized bed of the present embodiment is 3:1, and deflector is 6 leaves (referring to Fig. 5 and figure
6), deflector tilt angle is 75 °；Fluosolids 3 is equipped with 28 injectors 31, and the bottom of fluosolids 3 is additionally provided with inlet distribution
Device 35 (referring to fig. 4), to realize water inlet in each injector mean allocation, the tilt angle of solids distribution plate 32 is 15 °.Remaining
Structure is identical as the reduction fluidized bed in embodiment 1.Fig. 3 is fluidisation when injector is multiple in the reduction fluidized bed of embodiment 2
The cross-sectional view in area, Fig. 4 are the structural schematic diagram of its fluidization regions.
Embodiment 3
The deflector of reduction fluidized bed in the present embodiment uses structure as shown in Figure 7, remaining structure and 1 phase of embodiment
Together.
The more traditional reactor tank of the present invention is compared, and has good mixing effect, and operation energy consumption is low, does not generate mill to device structure
The advantages of damage.The case where injection pipe structure of preferred design simultaneously improves liquid and consolidate mixed effect, reduction solids bulk and dead end.
The present invention is not limited to the above-described embodiments, no matter making any variation in its shape or structure, all falls within this hair
Within bright protection scope.Protection scope of the present invention is defined by the appended claims, and those skilled in the art exists
Under the premise of without departing substantially from the principle and substance of the present invention, many changes and modifications may be made, but these
Change and modification each fall within protection scope of the present invention.
Claims (10)
1. a kind of reduction fluidized bed, which is characterized in that it includes sequentially connected from top to bottom: clear layer, guide layer and fluidisation
Layer；
Wherein, the clear layer from top to bottom includes sequentially connected liquid collection region, three phase separator and buffer area, the liquid
Pair of lamina overflow weir is equipped on the inner wall of body collecting region, be additionally provided in the middle part of the clear layer through the liquid collection region,
The reducing agent feeder of the three phase separator and the buffer area, the top of the reducing agent feeder are higher than described double-deck excessive
Weir is flowed, lower part is higher than the bottom of the buffer area；
Wherein, the guide layer is provided with deflector, for reducing the axial up-flow kinetic energy of liquid, the outer wall ruler of the guide layer
It is very little to be gradually reduced along the clear layer to the fluosolids；
Wherein, the bottom of the fluosolids is vertically arranged at least one injector, is provided with several around the injector
Powder can be made to tilt down the solids distribution plate fallen；Offer water sucking mouth on the injector, the one of the solids distribution plate
End is connect with the injector, and link position is located at the lower end of the water sucking mouth, the other end of the solids distribution plate with it is described
The wall surface of fluosolids or another adjacent injector are connected.
2. reduction fluidized bed as described in claim 1, which is characterized in that the bilayer overflow weir uses the ring around tower body edge
Shape structure or rectangular configuration；
The reducing agent feeder contains weight detecting module；
The three phase separator is using the double-deck inverted triangle structure；
The top of the three phase separator is equipped with outside exhaust pipe.
3. reduction fluidized bed as described in claim 1, which is characterized in that the number of blade of the deflector is 3-8 leaf；
The blade of the deflector uses helical structure；
The tilt angle of the blade of the deflector is 15 ° -75 °, preferably 30 ° -60 °；
The deflector is located at the inner wall of the guide layer or in the guide layer by vacantly being fixed with connecting rod；
The ratio of diameter up and down of the guide layer is 1.5-3:1.
4. reduction fluidized bed as described in claim 1, which is characterized in that the bottom of the fluosolids is provided with inlet distribution
Device；
Distance >=5cm of guide layer bottom described in the distance from top of the injection pipe of the injector, preferably 10cm-20cm；
Ratio of height to diameter >=2 of the injection pipe, preferably 3-8:1；
The number of the injector is at least one；
The inclined angle of the solids distribution plate is 15-75 °；
The number of the solids distribution plate is corresponding with the number of the injector.
5. reduction fluidized bed as described in claim 1, which is characterized in that the clear layer, the guide layer and the fluidisation
The height ratio of layer is (0.7-1.3): (0.7-1.3): (1.4-2.6).
6. reduction fluidized bed as described in claim 1, which is characterized in that the clear layer, the guide layer and the fluidisation
The height ratio of layer is 1:1:2.
7. reduction fluidized bed as described in claim 1, which is characterized in that the outside of the reduction fluidized bed is provided with recirculated water
Pump and circulation water pot.
8. reduction fluidized bed as claimed in claim 7, which is characterized in that the circulation water pot is overflow by pipeline and the bilayer
Weir connection is flowed, the circulation water pot is connect by pipeline with the water circulating pump.
9. a kind of application such as the described in any item reduction fluidized beds of claim 1-8 in the recycling of Fenton iron mud.
10. a kind of application method such as the described in any item reduction fluidized beds of claim 1-8 in the recycling of Fenton iron mud,
Include the following steps:
Reducing agent feeder is added in reducing agent, Fenton iron mud enters after fluosolids to be sprayed upwards by injector, by water conservancy diversion
Enter clear layer after plate, the liquid circulation that the double-deck overflow weir is flowed out after separation of solid and liquid uses.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154859Y (en) * | 1993-03-17 | 1994-02-02 | 王振声 | Multifunction aerobic organism fluidied bed |
| KR19980072360A (en) * | 1997-03-04 | 1998-11-05 | 한상배 | Stirring and chemical injection method and device for water treatment |
| CN1932236A (en) * | 2006-09-28 | 2007-03-21 | 侯华业 | Method and apparatus for directly dispersing polymer dry powder by hydraulic jet |
| CN101631881A (en) * | 2007-03-16 | 2010-01-20 | 奥图泰有限公司 | Method to enhance clarification in a mixing reactor and said mixing reactor |
| CN202297249U (en) * | 2011-10-12 | 2012-07-04 | 林长青 | Inner-circulated anaerobic fluidize bed reactor |
| CN104261622A (en) * | 2014-09-29 | 2015-01-07 | 中国电建集团中南勘测设计研究院有限公司 | Fenton sewage treatment process and equipment thereof |
| CN104445605A (en) * | 2014-11-24 | 2015-03-25 | 南京大学 | Mechanical internal circulation jet-flow anaerobic reactor and wastewater treatment method thereof |
| CN104973631A (en) * | 2015-07-23 | 2015-10-14 | 浙江奇彩环境科技有限公司 | Technique for preparing ferrous sulfate by reducing iron mud with SO2 |
| CN105237409A (en) * | 2014-06-05 | 2016-01-13 | 中国石油化工股份有限公司 | Method used for reductive amination using jet reactor |
| CN106892497A (en) * | 2017-04-14 | 2017-06-27 | 上海电气集团股份有限公司 | Fenton iron mud regeneration device, Fenton methods sewage disposal system and its method |
| CN207918512U (en) * | 2017-12-21 | 2018-09-28 | 上海电气集团股份有限公司 | A kind of reduction fluid bed |
-
2017
- 2017-12-21 CN CN201711394357.2A patent/CN109942065B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154859Y (en) * | 1993-03-17 | 1994-02-02 | 王振声 | Multifunction aerobic organism fluidied bed |
| KR19980072360A (en) * | 1997-03-04 | 1998-11-05 | 한상배 | Stirring and chemical injection method and device for water treatment |
| CN1932236A (en) * | 2006-09-28 | 2007-03-21 | 侯华业 | Method and apparatus for directly dispersing polymer dry powder by hydraulic jet |
| CN101631881A (en) * | 2007-03-16 | 2010-01-20 | 奥图泰有限公司 | Method to enhance clarification in a mixing reactor and said mixing reactor |
| CN202297249U (en) * | 2011-10-12 | 2012-07-04 | 林长青 | Inner-circulated anaerobic fluidize bed reactor |
| CN105237409A (en) * | 2014-06-05 | 2016-01-13 | 中国石油化工股份有限公司 | Method used for reductive amination using jet reactor |
| CN104261622A (en) * | 2014-09-29 | 2015-01-07 | 中国电建集团中南勘测设计研究院有限公司 | Fenton sewage treatment process and equipment thereof |
| CN104445605A (en) * | 2014-11-24 | 2015-03-25 | 南京大学 | Mechanical internal circulation jet-flow anaerobic reactor and wastewater treatment method thereof |
| CN104973631A (en) * | 2015-07-23 | 2015-10-14 | 浙江奇彩环境科技有限公司 | Technique for preparing ferrous sulfate by reducing iron mud with SO2 |
| CN106892497A (en) * | 2017-04-14 | 2017-06-27 | 上海电气集团股份有限公司 | Fenton iron mud regeneration device, Fenton methods sewage disposal system and its method |
| CN207918512U (en) * | 2017-12-21 | 2018-09-28 | 上海电气集团股份有限公司 | A kind of reduction fluid bed |
Non-Patent Citations (1)
| Title |
|---|
| 黄思远: "印染废水芬顿污泥原位资源化利用", 《净水技术》, vol. 42, no. 1, pages 167 - 172 * |
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Application publication date: 20190628 Assignee: Bluelight ecological environment technology (Fujian) Co.,Ltd. Assignor: Shanghai Electric Group Co.,Ltd. Contract record no.: X2019310000020 Denomination of invention: Reduction fluidized bed, as well as application and using method thereof License type: Common License Record date: 20191113 |
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